CN110565719A

CN110565719A - slotting device

Info

Publication number: CN110565719A
Application number: CN201910904374.9A
Authority: CN
Inventors: 凌杰
Original assignee: Chengdu Hunters Rock Breaking Technology Co Ltd
Current assignee: Sichuan Stone Hunter Longyu Technology Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2019-12-13

Abstract

a slotting device comprises a cutting arm, a cutting wheel, a cutter and a driving device. The cutting arm comprises a first hinge point, a second hinge point and a third hinge point, the first hinge point is used for being hinged with the carrier, and the second hinge point is used for being hinged with the lifting oil cylinder; the cutting wheel is hinged with the cutting arm at a third hinged point; the driving device is fixed with the cutting arm and used for driving the cutting wheel to rotate so as to drive the cutter to cut and slot the rock stratum, and the axis of the first hinge point is approximately parallel to the axis of the third hinge point. The grooving device can effectively avoid the shaking phenomenon when cutting and grooving the rock stratum with higher hardness, and has lower manufacturing cost and higher reliability.

Description

slotting device

Technical Field

embodiments of the present disclosure relate to a slotting device.

Background

in the grooving operation aiming at hard rock, the grooving device has better application prospect due to higher efficiency. Generally, a grooving apparatus includes a cutting arm, a cutting device, and a driving device, and is mountable on a carrier to perform a grooving operation.

Work implements carried on excavators typically include a boom, an arm, and a bucket, so that the excavator can excavate and load gravel and earth through the boom, the arm, and the bucket. However, with the development of technology and the increase in the popularity of excavators, the excavator can be equipped with a plurality of different work accessories to perform different work contents.

disclosure of Invention

The disclosed embodiment provides a slotting device. The slotting device comprises a cutting arm, a cutting wheel, a cutter and a driving device. The cutting arm comprises a first hinge point, a second hinge point and a third hinge point, the first hinge point is used for being hinged with the carrier, and the second hinge point is used for being hinged with the lifting oil cylinder; the cutting wheel is hinged with the cutting arm at a third hinged point; the driving device is fixed with the cutting arm and used for driving the cutting wheel to rotate so as to drive the cutter to cut and slot the rock stratum, and the axis of the first hinge point is approximately parallel to the axis of the third hinge point. The grooving device can effectively avoid the shaking phenomenon when cutting and grooving the rock stratum with higher hardness, and has lower manufacturing cost and higher reliability. In addition, the sliding counterweight is arranged, so that the contact pressure of the slotting device and the rock stratum can be adjusted under the condition of increasing the stability of the carrier under the condition that the weights of the carrier, the slotting device and the counterweight are not changed, and the cutting capacity of the slotting device can be increased by fully utilizing the weight of the carrier.

at least one embodiment of the present disclosure provides a grooving apparatus, comprising: a cutting arm comprising a first hinge point configured to hinge with the carrier, a second hinge point configured to hinge with the lift cylinder, and a third hinge point; a cutting wheel hinged to the cutting arm at the third hinge point; and a driving device fixed with the cutting arm and configured to drive the cutting wheel to rotate, wherein the axis of the first hinge point is approximately parallel to the axis of the third hinge point.

For example, an embodiment of the present disclosure provides a slotting device further including: a counterweight removably disposed on the cutting arm; and the counterweight driver is connected with the counterweight, one side of the cutting arm, which is far away from the cutting wheel, is provided with a sliding part, the counterweight is in sliding connection with the sliding part, and the counterweight driver is configured to drive the counterweight to slide on the cutting arm.

For example, in the slotting device provided by an embodiment of the present disclosure, the sliding portion includes a first end portion and a second end portion, the first end portion is located on a side of the first hinge point away from the third hinge point, the second end portion is located on a side of a first boundary line extending in a vertical direction through an end of the cutting wheel away from the first hinge point, and the counterweight is configured to be slidable to the second end portion and beyond the first boundary line.

for example, in a slotting device provided by an embodiment of the present disclosure, the first end is located on a side of a second dividing line passing through the first hinge point and extending in a vertical direction away from the third hinge point, and the counterweight is configured to be slidable to the first end and beyond the second dividing line.

For example, an embodiment of the present disclosure provides a slotting device further including: the cutter is positioned on the outer surface of the cutting wheel, and the driving device is configured to drive the cutting wheel to rotate so as to drive the cutter to cut and notch the rock stratum.

For example, in a slotting device provided by an embodiment of the present disclosure, the cutting arm includes: a main body portion; the cutting wheel is arranged between the two support parts, part of the cutting wheel is arranged in the accommodating space, one end of the cutting wheel close to the main body part is arranged between the main body part and the support parts, the sliding part comprises a sliding rail far away from the support parts, and the balance weight is arranged on the sliding rail.

For example, in a slotting device provided by an embodiment of the disclosure, at least one of the counterweight and the sliding track is provided with a limiting device.

for example, in the slotting device provided by an embodiment of the disclosure, the sliding track includes two track side portions protruding from the cutting arm along the axial direction of the first hinge point, the two track side portions are respectively located at two sides of the cutting arm, and the counterweight driving device includes two sub-driving portions, and the two sub-driving portions are arranged in one-to-one correspondence with the two track side portions and are respectively in rolling fit.

For example, in a slotting device provided in an embodiment of the present disclosure, the sub-driving part includes: the upper wheel bracket is connected with the counterweight; the upper wheel is hinged to the upper wheel bracket and is in rolling fit with the top surface of the side part of the track, which is far away from the cutting wheel; the lower wheel bracket is connected with the counterweight; and the lower wheel is hinged to the lower wheel bracket and is in rolling fit with the side part of the track close to the bottom surface of the cutting wheel.

For example, in the slotting device provided by an embodiment of the present disclosure, the sub-driving part includes two upper wheel brackets, two upper wheels, two lower wheel brackets, and two lower wheels, the two upper wheel brackets and the two upper wheels are disposed on both sides of the counterweight in the extending direction of the sliding rail, and the two lower wheel brackets and the two lower wheels are also disposed on both sides of the counterweight in the extending direction of the sliding rail.

For example, in a slotting device provided in an embodiment of the present disclosure, the sub-driving part includes: the side wheel bracket is connected with the balance weight; and the side wheels are hinged to the side wheel brackets and are in rolling fit with the side surfaces between the top surfaces and the bottom surfaces of the side parts of the rails.

For example, an embodiment of the present disclosure provides a slotting device further including: a stroke cavity located in the cutting arm and penetrating the cutting arm in a thickness direction of the cutting arm; and the lifting shaft is arranged in the stroke cavity and can slide in the stroke cavity, and the second hinge point is positioned on the lifting shaft.

for example, in a slotting device provided by an embodiment of the disclosure, the stroke cavity includes a first side surface and a second side surface extending along an extending direction of the stroke cavity, the lifting shaft is in contact with at least one of the first side surface and the second side surface, the first side surface is closer to the third hinge point than the second side surface, and a length of the first side surface is greater than a length of the second side surface.

For example, an embodiment of the present disclosure provides a slotting device further including: the carrier comprises an upper vehicle body and a lower vehicle body, wherein the upper vehicle body is rotationally connected with the lower vehicle body, and the lower vehicle body is provided with a travelling mechanism; and the cutting arm is hinged with the upper vehicle body at the first hinge point, one end of the lifting oil cylinder is hinged with the upper vehicle body, and the other end of the lifting oil cylinder is hinged with the cutting arm at the second hinge point.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description relate only to some embodiments of the present disclosure and are not limiting to the present disclosure.

Fig. 1 is a schematic structural diagram of a slotting device according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of a grooving apparatus lifting a cutting arm according to an embodiment of the present disclosure;

Fig. 3 is a partial structural schematic view of a sliding rail according to an embodiment of the present disclosure;

fig. 4-5 are schematic structural views of a counterweight driving device according to an embodiment of the present disclosure;

fig. 6-7 are schematic structural views of a counterweight driving device according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural view illustrating another slotting device according to one embodiment of the present disclosure;

FIG. 9 is a schematic diagram illustrating an alternative arrangement of a stroke chamber according to an embodiment of the present disclosure; and

Fig. 10 is a schematic structural diagram of a second hinge point of a slotting device provided according to an embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, whether direct or indirect.

In the grooving operation aiming at hard rock, the grooving device has better application prospect due to higher efficiency. Generally, a grooving apparatus includes a cutting arm, a cutting device, and a driving device, and is mountable on a carrier to perform a grooving operation. Thus, the excavator can cut and open the trench in the rock formation by using the above-described trenching apparatus in addition to the working attachment for excavating and loading the crushed stones and the earth. For example, an excavator may be equipped with a boom, an arm, and a cutting device provided at the tip of the arm to cut and open a groove in a rock formation. However, the connection relationship of the excavator carrying the large arm, the small arm and the cutting device is more (the carrier is connected with the large arm, the large arm is connected with the small arm, and the small arm is connected with the cutting device), and the shaking phenomenon is easy to occur; in addition, the connection relationship between the large arm and the small arm is a laborious lever for the small arm oil cylinder, so that a certain retraction phenomenon can be generated when the small arm oil cylinder is subjected to a large reaction force, and when the reaction force is reduced, the small arm oil cylinder returns to the original state, so that a shaking phenomenon is generated. Therefore, the excavator having the boom, the boom and the cutter mounted thereon is likely to suffer from a shaking phenomenon or the like when cutting a rock formation having high hardness, and thus the cutting effect is poor.

the excavator can also directly carry a cutting arm on the frame, a cross beam is arranged on the cutting arm, a transverse driving device is arranged on the cross beam, a lifting device is arranged on the transverse driving device, and the cutting wheel is arranged on the lifting device. Therefore, the lifting device can drive the cutting wheels to perform lifting motion, and the transverse driving device can drive the cutting wheels to perform transverse motion on the cross beam, so that rock strata are cut and grooved. However, the inventors of the present application have noticed that although the excavator mounted with the above-described cutting arm, cross beam, lateral driving device and elevating device improves the cutting effect when cutting a rock formation having a high hardness; however, the excavator mounted with the cutting arm, the cross beam, the lateral driving device, and the lifting device requires a large working space, while the excavator mounted with the cutting arm, the cross beam, the lateral driving device, and the lifting device has a complicated structure, high cost, and low reliability. In addition, when the excavator having the cutting arm, the beam, the transverse driving device, and the lifting device is lifted, the weight of the above components must be overcome, so that the lifting capability is low, and the cutting efficiency or the grooving efficiency is affected.

on the other hand, for a rock formation with a high hardness, a hobbing cutter or a ball cutter is usually arranged on the cutting device, and the cutting device needs to have a high contact pressure with the rock formation. However, in order to obtain a large contact pressure, the grooving apparatus needs to have a large weight; in the case of a carrier with limited weight, the contact pressure of the cutting device with the formation is often difficult to exceed half the weight of the total machine (total weight of the carrier and the grooving device) in view of the balancing problem, resulting in poor grooving efficiency for very hard formations. In addition, the contact pressure of the cutting device with the rock formation cannot be easily adjusted.

In view of this, the disclosed embodiments provide a slotting device. The slotting device comprises a cutting arm, a cutting wheel, a cutter and a driving device. The cutting arm comprises a first hinge point, a second hinge point and a third hinge point, the first hinge point is used for being hinged with the carrier, and the second hinge point is used for being hinged with the lifting oil cylinder; the cutting wheel is hinged with the cutting arm at a third hinged point; the driving device is fixed with the cutting arm and used for driving the cutting wheel to rotate so as to drive the cutter to cut and slot the rock stratum, and the axis of the first hinge point is approximately parallel to the axis of the third hinge point. Therefore, on the one hand, the cutting arm can be directly hinged with the carrier through the first hinge point without arranging parts such as a large arm and a small arm, so that the connection relation can be reduced, the structure is simplified, and the phenomenon of shaking of the slotting device can be effectively avoided when the rock stratum with higher hardness is subjected to slotting. On the other hand, the slotting device does not need to be provided with a transverse driving mechanism and a lifting mechanism, so that the structure is further simplified, the manufacturing cost is reduced, and the reliability of the slotting device is improved. In addition, under the condition that the lifting capacity of the carrier is not changed, the carrier does not need to overcome the gravity of the transverse driving mechanism and the lifting mechanism, so that the weight of the cutting wheel can be larger, and larger grooving depth and width can be obtained.

hereinafter, a grooving device provided by an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a slotting device according to an embodiment of the present disclosure. Fig. 2 is a schematic structural diagram of another slotting device provided in an embodiment of the present disclosure. As shown in fig. 1 and 2, the slotting device 100 includes a cutting arm 110, a cutting wheel 120, and a driving device 130. The cutting arm 110 includes a first hinge point 111, a second hinge point 112, and a third hinge point 113. The first hinge point 111 is used for being hinged with the carrier 200, so that the first hinge point can be directly carried on the carrier 200. For example, the carrier 200 may be an excavator or a carrier dedicated to a slotting device, and the disclosed embodiments are not limited thereto. The second hinge point 112 is used to hinge with the lift cylinder 310, and the lift cylinder 310 can lift the cutting arm 110 through the second hinge point 112. The cutting wheel 120 is hinged to the cutting arm 110 at a third hinge point 113; the driving device 130 is fixed to the cutting arm 110 and is used to drive the cutting wheel 120 to rotate, so that the cutting and slotting can be performed. In addition, as shown in fig. 1, the axis of the first hinge point 111 is substantially parallel to the axis of the third hinge point 113; that is, the plane of rotation of the cutting wheel 120 is substantially parallel to the plane of movement of the cutting arm 110. The above-mentioned substantially parallel includes a case of being completely parallel, and also includes a case of an angle between an axis of the first hinge point and an axis of the third hinge point being less than 10 degrees. In addition, the hinge point refers to a position where two components are hinged, and generally includes a hole, a contact surface, a connecting shaft and other components required when the two components are hinged, and the hole of at least one component rotates relative to the connecting shaft.

In the grooving device provided by the embodiment, the cutting arm can be directly hinged with the carrier through the first hinge point without arranging parts such as a large arm and a small arm, so that the connection relation can be reduced, the structure can be simplified, and the phenomenon of shaking of the grooving device can be effectively avoided when the grooving device is used for cutting and grooving rock strata with higher hardness. On the other hand, the slotting device does not need to be provided with a transverse driving mechanism and a lifting mechanism, the structure is further simplified, the axis of the first hinge point is approximately parallel to the axis of the third hinge point, the rotation plane of the cutting wheel is approximately parallel to the movement plane of the cutting arm, the cutting wheel can be directly lifted through the lifting movement of the cutting arm, and when the slotting device is carried on an excavator, the cutting wheel can be transversely moved through the carrier, so that the slotting device does not need to be provided with an additional transverse driving mechanism and a lifting mechanism, the structure can be further simplified, the manufacturing cost is reduced, and the reliability of the slotting device is improved. In addition, under the condition that the lifting capacity of the carrier is not changed, the carrier does not need to overcome the gravity of the transverse driving mechanism and the lifting mechanism, so that the weight of the cutting wheel can be larger, and larger grooving depth and width can be obtained. It should be noted that the carrier includes a power portion, a control portion and a traveling mechanism, the power portion provides a power source for the traveling mechanism and the grooving device, the control portion controls the actions of the grooving device and the traveling mechanism, the traveling mechanism drives the carrier to move, the carrier can be a modified bulldozer or a modified loader, and the grooving device can be carried and the power source can be provided for the grooving device.

In some examples, as shown in fig. 1, the outer surface of the cutting wheel 120 (i.e., the outer circumferential surface of the cutting wheel away from the axis of the third articulation point) may be provided with a cutter 140. Therefore, the driving device 130 can drive the cutting wheel 120 to rotate and drive the cutters 140 on the cutting wheel 120 to cut and slot the rock formation. Through setting up foretell cutterbar, on the one hand can strengthen this fluting device to the cutting ability of rock stratum, on the other hand can only need to change the cutterbar when the cutterbar damages and can continue to work to can make this fluting device be convenient for maintain and improve fluting efficiency.

For example, the cutter 140 may be a hobbing cutter or a ball gear, which are used for breaking rock by rolling and pressing rock strata to crack the rock strata, and are mainly used for rock strata with higher hardness, so that the cutter has stronger cutting and slotting capabilities for rock strata with higher hardness. Of course, the embodiments of the present disclosure include, but are not limited to, the cutters may also be cutting teeth or other types of cutters, and the cutting teeth mainly cut and break rock through the rock formation by the tooth tips, and are relatively efficient and mainly used for rock formations with low hardness.

In some examples, as shown in fig. 1 and 2, the slotting device 100 further includes a counterweight 150 and a counterweight driver 160; a counterweight 150 is removably disposed on the cutting arm 110, and a counterweight driver 160 is coupled to the counterweight 150. The cutting arm 110 is provided with a sliding part 170 at a side away from the cutting wheel 120, the counterweight 150 is slidably connected with the sliding part 170, and the counterweight driver 160 is used for driving the counterweight 150 to slide on the cutting arm 110. For example, the sliding portion 170 may be a sliding surface of the cutting arm 110 away from the cutting wheel 120.

The above-described "slide connection" means that the relative positional relationship between the weight and the slide portion in the extending direction of the slide portion is changeable, and the relative positional relationship between the weight and the slide portion in the direction from the slide portion to the third hinge point is not changed. In addition, in order to facilitate understanding of the embodiments of the present disclosure, the positional relationship of each component in the slotting device is described in terms of "front", "rear", "upper", "lower", and "lateral", in which a direction from the first hinge point to the second hinge point is front, a direction from the second hinge point to the first hinge point is rear, a direction from the third hinge point to the sliding portion is upper, a direction from the sliding portion to the third hinge point is lower, and an axial direction of the second hinge point is lateral.

in the grooving device provided by the example, since the counterweight driver is used for driving the counterweight to slide on the cutting arm, when the counterweight driver drives the counterweight to enable the position of the counterweight on the cutting arm to be close to the third hinge point, namely the counterweight is positioned at the front end of the cutting arm, the contact pressure of the cutting wheel hinged at the third hinge point and the rock stratum can be increased, and therefore the cutting or grooving effect is improved; when the counter weight driver drives the counter weight to enable the position of the counter weight on the cutting arm to be close to the first hinge point, namely, when the counter weight is located at the rear end of the cutting arm, the resistance of the lifting oil cylinder hinged to the second hinge point is smaller, and therefore the lifting oil cylinder can lift the cutting arm conveniently. Therefore, by arranging the counterweight and the counterweight driver, under the condition of not changing the weight of the slotting device, the slotting device can increase the cutting or slotting effect when the cutting or slotting is needed on one hand, and can reduce the resistance on the lifting oil cylinder when the cutting or slotting is not needed on the other hand, thereby improving the cutting or slotting efficiency. In addition, the grooving apparatus provided by this example may provide suitable contact pressure by removing the counterweight or adjusting the position of the counterweight on the cutting arm for different hardness formations requiring different contact pressures.

In some examples, as shown in fig. 1 and 2, the slotting device 100 can also include a secondary weight 154, the secondary weight 154 being removably connected to the weight 150. Thus, the secondary weight can increase the adjustability of the weight of the slotting device and can provide suitable contact pressure by mounting or dismounting the secondary weight.

In some examples, as shown in fig. 1 and 2, the slotting device 100 further comprises: a carrier 200 and a lift cylinder 310. The vehicle 200 includes an upper vehicle body 210 and a lower vehicle body 220, the upper vehicle body 210 is rotatably connected to the lower vehicle body 220, and the lower vehicle body 220 is provided with a traveling mechanism 230. The cutting arm 110 is hinged to the upper body 210 at a first hinge point 111, and the lift cylinder 310 has one end hinged to the upper body 210 and the other end hinged to the cutting arm 110 at a second hinge point 112. For example, the above-mentioned carrier may be an excavator or a carrier dedicated to trenching or cutting.

For example, the carrier 200 in fig. 1 is a slotter in which an upper vehicle body 210 and a lower vehicle body 220 are fixedly connected, and the lower vehicle body is provided with a traveling mechanism 230. The vehicle 200 in fig. 2 is an excavator, and an upper body 210 of the excavator is rotatably connected to a lower body 220 provided with a traveling mechanism 230.

In some examples, as shown in fig. 1 and 2, the sliding portion 170 includes a first end portion 171 and a second end portion 172, the first end portion 171 being located on a side of the first hinge point 111 away from the third hinge 113, and the second end portion being located on a side of the third hinge point 113 away from the first hinge point 111. The second end portion 172 is located on a side away from the first hinge point 111 by a first boundary line 501 that passes through an end (i.e., a front end) of the cutting wheel 120 away from the first hinge point 111 and extends in the vertical direction. Thus, the counterweight 150 can slide to the second end 172 of the sliding portion 170 away from the first hinge point 111 and beyond the end of the cutting wheel 120 away from the first hinge point 111. The vertical direction is a gravitational direction.

Fig. 1 is a schematic view showing a grooving apparatus cutting a rock formation. As shown in fig. 1, for the cutting wheel 120 hinged at the third hinge point 113, the contact pressure of the cutting wheel 120 with the formation is proportional to the distance from the counterweight 150 to the first hinge point 111, so that when the counterweight 150 slides to the right upper direction of the cutting wheel 120, the gravity of the counterweight 150 can be effectively converted into the contact pressure of the cutting wheel 120 with the formation, and the cutting or grooving capability of the cutting wheel 120 for the formation can be enhanced; when the counterweight 150 slides to the second end 172 of the sliding part 170 far away from the first hinge point 111, since the second end 172 is located on the side of the first boundary line 501 far away from the first hinge point 111, it can be known from the lever principle analysis that the gravity of the counterweight 150 can be efficiently converted into the contact pressure of the cutting wheel 120 and the rock formation, and part of the weight of the carrier 200 can be converted into the contact pressure of the cutting wheel 120 and the rock formation, so that the cutting or slotting capability of the cutting wheel 120 on the rock formation can be greatly enhanced.

in some examples, as shown in fig. 1, the second end portion 172 is spaced from the first boundary line 501 by 1/6-1/3, e.g., 1/5 and 1/4, of the distance between the first end portion 171 and the second end portion 172 of the sliding portion 170, so that the grooving apparatus has a large contact pressure when cutting or grooving a rock formation, thereby improving cutting or grooving efficiency on the one hand and cutting or grooving capability for a rock formation having a large hardness on the other hand.

In some examples, as shown in fig. 1 and 2, the first end portion 171 is located on a side of the second dividing line 502 that passes through the first hinge point 111 and extends in the vertical direction, away from the third hinge point 113; therefore, the counterweight 150 slidably connected with the sliding portion 170 may slide to the first end portion 171 of the sliding portion 170 close to the first hinge point 111 and beyond the second boundary line 502.

with respect to the first dividing line 501 and the second dividing line 502, referring to fig. 1, the first dividing line 501 may be a line perpendicular to the line connecting the first end 171 and the second end 172 and tangent to the foremost end of the cutting wheel 120 away from the vehicle, and the first dividing line 501 may also be a plane extending in the transverse direction since the foremost end of the cutting wheel may not be on the same plane as the line connecting the first end 171 and the second end 172 in the front-rear direction; the second dividing line 502 may also be perpendicular to the line connecting the first end 171 and the second end 172 and pass through the axis of the hinge shaft of the first hinge point 111, and thus the second dividing line 502 may also be a plane extending in the lateral direction.

Figure 2 shows a schematic view of a grooving apparatus lifting a cutting arm. As shown in fig. 2, for the lift cylinder 310 hinged at the second hinge point 112, when the counterweight 150 slides right above the first hinge point 111 and the center of gravity of the counterweight 150 is located right above the first hinge point 111, the lift cylinder 310 does not need to overcome the gravity of the counterweight 150 when lifting the cutting arm 110; when the counterweight 150 slides to the first end 171 of the sliding portion 170 close to the first hinge point 111, because the first end 171 is located at the side of the lifting cylinder 310 that passes through the end (i.e. the front end) of the first hinge point 111 and the second boundary line 502 extending in the vertical direction is far away from the third hinge point 113, when lifting the cutting arm 110, the gravity of the counterweight 150 can lift the cutting arm 110 to generate assistance force, so as to greatly improve the lifting capability and the lifting efficiency of the lifting cylinder, facilitate the gravity center of the vehicle carrying the slotting device to be located within the range of the traveling mechanism 230 or close to the range of the traveling mechanism 230, and facilitate the stability of the vehicle when the weight of the slotting device is large, thereby facilitating the stability of the vehicle and the transportation or movement of the whole vehicle.

For example, as shown in fig. 1 and 2, the first end 171 is spaced from the second dividing line 502 by 1/6-1/3, e.g., 1/5 and 1/4, of the distance between the first end 171 and the second end 172 of the sliding portion 170, so that the grooving apparatus has a good lifting efficiency when lifting the cutting arm.

In some examples, as shown in fig. 1 and 2, the cutting arm 110 includes a main body portion 1101 and two bracket portions 1102; each support part 1102 is connected with two ends of the main body part 1101 respectively; the two support portions 1102 are oppositely arranged at intervals to form an accommodating space between the two support portions 1102, the third hinge points 113 are respectively located at the two support portions 1102, for example, at the middle of the support portions 1102, the cutting wheel 120 is arranged between the two support portions 1102, and part of the cutting wheel is located in the accommodating space, so that the structure of the whole slotting device is more compact, and the space is effectively utilized. Of course, embodiments of the present disclosure include, but are not limited to, in other embodiments, the cutting arm 110 may also be provided with a support portion 1102; for example, the cutting arm 110 includes a main body portion 1101 and a support portion 1102; the bracket portion 1102 is connected to one end of the main body portion 1101; the cutting wheel is transversely arranged on one side of the main body part 1101, the cutting wheel is arranged on the side part of the support part 1102, the third hinged point 113 is arranged on the support part 1102, and the cutting wheel 120 and the support part 1102 are hinged to the third hinged point 113; this arrangement places high demands on the strength of the holder 1102.

In some examples, as shown in fig. 1 and 2, an end of the cutter wheel 120 near the main body portion 1101 is located between the main body portion 1101 and the support portion 1102, so that the cutter wheel 120 can be prevented from affecting the sliding of the weight 150 on the sliding portion 170; in addition, the sliding portion 170 includes a sliding rail 175 remote from the bracket portion 1102, and the weight 150 is disposed on the sliding rail 175. Of course, the embodiments of the present disclosure include, but are not limited to, in other embodiments, the counterweight may be disposed on the side of the main body 1101; for example, the number of the balance weights 150 is two, the sliding portions 170 are respectively disposed on both sides of the main body 1101, the two balance weights 150 are respectively in sliding fit with the sliding portions 170 on both sides of the main body 1101, the balance weights 150 and the sliding portions 170 are both located at positions above the first hinge point 111 and the second hinge point 112, so that mutual interference can be avoided, and a driving device is disposed on the balance weights, and the driving device drives the balance weights to move back and forth relative to the main body.

in some examples, at least one of the counterweight 150 and the sliding rail 175 may be provided with a stop device to prevent the counterweight 150 from falling off both ends of the sliding rail 175. For example, as shown in fig. 1 and 2, both ends of the sliding rail 175 are provided with a stopper 180.

For example, the position-limiting device 180 may be a protrusion, or may have another shape, and is fixedly connected to the counterweight 150 or the sliding rail 175, or may be integrally provided with the counterweight 150 or the sliding rail 175.

fig. 3 is a partial structural schematic view of a sliding rail according to an embodiment of the present disclosure. Such as

As shown in fig. 3, the sliding rail 175 includes two rail side portions 1750 protruding from the cutting arm 110 in the axial direction of the first hinge point 111 (i.e., the thickness direction of the cutting arm 110), and the two rail side portions 1750 are located at both sides of the cutting arm 110. At this time, the counterweight driving device 160 includes two sub-driving portions 165, and the two sub-driving portions 165 are disposed in one-to-one correspondence with the two rail side portions 1750 and are respectively in rolling engagement.

In the slotting device provided by the present example, the counterweight driving device 160 can realize the sliding of the counterweight 150 on the sliding rail 175 through the rolling fit of the two sub-driving portions 165 and the two rail side portions 1750, and since the counterweight 150 has a larger weight, the counterweight 150 and the cutting arm 110 can have a limiting function while ensuring the sliding by adopting the sliding rail 175 to cooperate, and have higher safety. On the other hand, the rolling fit also contributes to a reduction in drag, a reduction in power consumption and a reduction in wear of the associated contacts.

Fig. 4 and 5 are schematic structural views of a counterweight driving device according to an embodiment of the present disclosure. As shown in fig. 4 and 5, the sub-driving part 165 includes an upper wheel bracket 1651 connected to the weight 150, an upper wheel 1652, a lower wheel bracket 1653 connected to the weight 150, and a lower wheel 1654; upper wheel 1652 is hinged to upper wheel bracket 1651 and is in rolling engagement with the top surface of track side portion 1750 remote from cutting wheel 120, and lower wheel 1654 is hinged to lower wheel bracket 1653 and is in rolling engagement with the bottom surface of track side portion 1750 close to cutting wheel 120, thereby achieving rolling engagement of two sub-drives 165 with two track side portions 1750.

in some examples, as shown in fig. 4 and 5, the sub-drive portion 165 includes two upper wheel brackets 1651, two upper wheels 1652, two lower wheel brackets 1653, and two lower wheels 1654; two upper wheel holders 1651 and two upper wheels 1652 are provided on both sides of the counterweight 150 in the extending direction of the slide rail 175, that is, the two upper wheel holders 1651 and the two upper wheels 1652 are provided in this order in the extending direction of the slide rail 175. Likewise, two lower wheel holders 1653 and two lower wheels 1654 are also provided on both sides of the counterweight 150 in the extending direction of the slide rail 175, that is, the two lower wheel holders 1653 and the two lower wheels 1654 are provided in this order in the extending direction of the slide rail 175. Thus, in the counterweight driving device 160, the number of the upper wheel holders 1651, the upper wheels 1652, the lower wheel holders 1653, and the lower wheels 1654 is 4, and the upper wheel holders, the upper wheels 1652, the lower wheel holders 1653, and the lower wheels 1654 are distributed at four corners of the counterweight, so that the stability of the counterweight 150 and the counterweight driving device 160 can be improved, and the counterweight driving device is simple and reliable.

In some examples, as shown in fig. 4 and 5, sub-drive 165 further includes a side wheel bracket 1655 connected to counterweight 150 and a side wheel 1656 hinged to side wheel bracket 1655 and in rolling engagement with the side surface between the top and bottom surfaces of rail side portion 1750. Thereby, the side wheels can further reduce the friction between the counterweight driving device and the sliding rail and reduce the abrasion.

In some examples, as shown in fig. 4 and 5, the sub driving part 165 includes two side wheel holders 1655 and two side wheels 1656, and the two side wheel holders 1655 and the two side wheels 1656 are disposed at both sides of the balance weight 150 in the extending direction of the sliding rail 175, so that the stability of the balance weight 150 and the balance weight driving device 160 can be further improved.

It should be noted that the counterweight driving device provided by the embodiment of the present disclosure includes, but is not limited to, the above structure; in other embodiments, the counterweight drive unit may be provided without the upper wheel bracket 1651, the upper wheel 1652, the lower wheel bracket 1653, the lower wheel 1654, the side wheel bracket 1655, and the side wheel 1656; for example, the counter weight both sides can be provided with the recess, and the recess cooperates with track lateral part 1750, and two track lateral parts 1750 are located the counter weight recess, and the recess and the track lateral part sliding fit of counter weight consequently can drive counter weight rock cutting arm back-and-forth movement, and this kind of setting frictional resistance is great relatively, should pay attention to the lubrication of its contact site to reduce the resistance, this mode benefit lies in simple structure.

in some examples, as shown in fig. 4 and 5, counterweight drive 160 further includes a drive frame 167 and a hydraulic motor 168; in other embodiments, the hydraulic motor 168 may also be a power device such as an electric motor; the drive frame 167 is connected to the counterweight and the hydraulic motor 168 is connected to the drive frame 167. Thus, the drive frame 167 and the hydraulic motor 168 can slide on the slide rail 175 with the counterweight 150.

Fig. 6-7 are schematic structural views of another counterweight driving device provided according to an embodiment of the disclosure. As shown in fig. 6-7, a gear 1681 is fixedly connected to the lower portion of the hydraulic motor 168, the gear 1681 is engaged with the track side rack 1751, and the hydraulic motor 168 drives the gear 1681 to rotate, thereby moving the counterweight 150 relative to the cutting arm 110.

In other embodiments, counterweight driving device 160 may also be configured as such, counterweight driving device 160 includes an oil cylinder, a roller and a steel rope, oil cylinder one end is hinged to cutting arm 110, the oil cylinder other end is hinged to roller 1, roller 1 is slidably connected to cutting arm 110, and is limited to the track arranged on cutting arm 110, roller 2 is fixed to cutting arm 110, roller 3 is fixed to cutting arm 110, be used for the steel rope direction, be provided with the counterweight fixed point on the steel rope, the steel rope passes through fixed point and counterweight fixed connection, the steel rope is closed form winding in roller 1 and roller 2, the flexible gyro wheel 1 that drives of oil cylinder removes, thereby it removes along with the steel rope to drive the fixed point on the steel rope, it removes for cutting arm 110 to drive the counterweight, the winding mode should: when the oil cylinder stretches, in the same time, the sliding stroke of the counterweight is larger than that of the oil cylinder, for example, the oil cylinder stretches out by 1 meter, and the counterweight slides by 3 meters.

Other counterweight driving devices 160 can also be arranged in this way, and include a plurality of oil cylinders, which are multi-stage oil cylinders, and the oil cylinder piston rods are sleeved with each other, so that a larger telescopic stroke can be obtained by using a shorter oil cylinder length, one end of each oil cylinder is hinged to the cutting arm 110, the other end of each oil cylinder is hinged to the counterweight, and the counterweight is driven by the telescopic action of the oil cylinders to slide relative to the cutting arm 110, but the structure has larger limitation, and a larger counterweight stroke is not easy to obtain; the counterweight driving device 160 is disposed in many ways, which are not exemplified here.

Fig. 8 is a schematic structural view of another slotting device according to an embodiment of the present disclosure. As shown in fig. 8, the slotting device 100 also includes a travel chamber 118 and a lift shaft 320. The stroke chamber 118 is located in the cutting arm 110 and penetrates the cutting arm 110 in a thickness direction of the cutting arm 110 (i.e., an axial direction of the first hinge point 111).

For example, the travel cavity 118 includes a first side 1183 and a second side 1184 extending along the extending direction of the travel cavity 118, the lifting shaft 320 contacts at least one of the first side 1183 and the second side 1184, the first side 1183 is closer to the third hinge 113 than the second side 1184, and the length of the first side 1183 is greater than the length of the second side 1184. The travel chamber 118 further includes an upper end 1181 and a lower end 1182; the upper end 1181 is located at the upper portion of the stroke cavity 118, the lower end 1182 is located at the lower portion of the stroke cavity 118, the first side 1183 and the first side 1184 are oppositely arranged, and the distance from the upper end 1181 to the lower end 1182 is more than 2 times the diameter of the lifting shaft 320. The lift shaft 320 is disposed in the stroke chamber 118 and is slidable in the stroke chamber 118, with the second hinge point 112 located at the lift shaft 320. Thus, when the lift cylinder 310 lifts the cutting arm 110, the lift shaft 320 may contact the upper end 1181 of the stroke chamber 118 (i.e., a portion of the stroke chamber 118 adjacent to the sliding portion 170), so that the thrust of the lift cylinder 310 acts on the cutting arm 110; when the cutting wheel 120 contacts the rock formation and performs cutting and grooving, the lifting cylinder 310 is retracted to make the lifting shaft 320 have a certain distance from the upper end 1181 of the stroke cavity 118, so that the lifting cylinder 310 does not support the cutting arm 110, and the cutting wheel 120 can fully utilize the gravity of the cutting arm 110 and the counterweight 150 to obtain a stable downward cutting force, thereby improving the cutting or grooving capability.

for example, the lift shaft 320 may pass through the travel cavity 118, and an axis of the lift shaft 320 is substantially parallel to an axis of the first hinge point 111. It should be noted that the above-mentioned substantially parallel includes a case of being completely parallel, and also includes a case of having an angle between an axis of the lifting shaft and an axis of the first hinge point smaller than 10 degrees.

FIG. 9 is a schematic diagram of another stroke chamber configuration provided in accordance with an embodiment of the present disclosure. As shown in fig. 9, the stroke cavity 118 is configured to be substantially triangular, the first side 1183 is two sides of the triangle, the second side 1184 is one side, the first side 1183 is an arc with varying curvature, and the second side 1184 is an arc with varying curvature; therefore, the lifting shaft 320 can have a larger stroke in the same range, so that the cutting arm 110 can obtain a larger up-down stroke under the condition that the stroke of the lifting oil cylinder is the same; the length of the first side 1183 is greater than that of the second side 1184, so that the lifting shaft 320 can have a larger stroke in the same range, and the cutting arm 110 can obtain a larger up-down stroke under the condition that the stroke of the lifting cylinder is the same, and meanwhile, the stroke cavity has a simpler manufacturing shape.

For example, as shown in fig. 9, the first hinge point 111 may include a first hinge hole 1111, and the third hinge point 113 may include a third hinge hole 1131.

Fig. 10 is a schematic structural diagram of a second hinge point of a slotting device provided according to an embodiment of the present disclosure. As shown in fig. 10, the second hinge point 112 includes a lifting shaft 320, a hole 1121 and a stroke cavity 118, the two holes 1121 are respectively located at the lateral ends of the stroke cavity 118, the lifting shaft 320 is engaged with the hole 1121 and the stroke cavity 118, and the stroke cavity 118 can rotate around the lifting shaft 118, so that the lifting cylinder 310 can drive the cutting arm 110 to rotate around the first hinge point 111.

At least one embodiment of the present disclosure also provides a method of using a grooving apparatus. The slotting device comprises a cutting arm, a cutting wheel, a driving device, a balance weight and a balance weight driving device. The cutting arm includes a first hinge point, a second hinge point, and a third hinge point. The first hinge point is used for being hinged with the carrier, so that the first hinge point can be directly carried on the carrier. The second hinge point is used for being hinged with the lifting oil cylinder, and the lifting oil cylinder can lift the cutting arm through the second hinge point. The cutting wheel is hinged with the cutting arm at a third hinged point; the driving device is fixed with the cutting arm and used for driving the cutting wheel to rotate, so that the cutting and slotting can be carried out. The counterweight is detachably arranged on the cutting arm, and the counterweight driving device is connected with the counterweight. One side of the cutting arm far away from the cutting wheel is provided with a sliding part, the balance weight is connected with the sliding part in a sliding mode, and the balance weight driver is used for driving the balance weight to slide on the cutting arm. The use method of the slotting device comprises the following steps:

Step S601: when the cutting wheel is in contact with the rock formation and cuts the rock formation, the counterweight driving device drives the counterweight to move along the direction from the first hinge point to the third hinge point. Of course, the counterweight driving device can also drive the counterweight to move along the direction from the first hinge point to the third hinge point, and after the counterweight reaches the required position, the cutting wheel is contacted with the rock stratum and cuts the rock stratum.

For example, the counterweight driving device can drive the counterweight to move to the side of the third hinge point far away from the first hinge point.

Step S602: when the cutting arm is lifted, the counterweight driving device drives the counterweight to move along the direction from the third hinge point to the first hinge point.

For example, the counterweight driving device can drive the counterweight to move to the side of the first hinge point far away from the second hinge point.

In the use method of the slotting device provided by the example, when the counterweight driver drives the counterweight to enable the position of the counterweight on the cutting arm to be close to the third hinge point, the contact pressure of the cutting wheel hinged at the third hinge point and the rock stratum can be increased, so that the cutting or slotting effect is improved; when the counterweight driver drives the counterweight to enable the position of the counterweight on the cutting arm to be close to the first hinge point, the resistance of the lifting oil cylinder hinged at the second hinge point is smaller, and therefore the lifting oil cylinder can lift the cutting arm conveniently. Therefore, by arranging the counterweight and the counterweight driver, under the condition of not changing the weight of the slotting device, the slotting device can increase the cutting or slotting effect when the cutting or slotting is needed on one hand, and can reduce the resistance on the lifting oil cylinder when the cutting or slotting is not needed on the other hand, thereby improving the cutting or slotting efficiency.

the following points need to be explained:

(1) In the drawings of the embodiments of the present disclosure, only the structures related to the embodiments of the present disclosure are referred to, and other structures may refer to general designs.

(2) features of the disclosure in the same embodiment and in different embodiments may be combined with each other without conflict.

The above is only a specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present disclosure, and shall be covered by the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. a grooving apparatus comprising:

A cutting arm comprising a first hinge point configured to hinge with the carrier, a second hinge point configured to hinge with the lift cylinder, and a third hinge point;

A cutting wheel hinged to the cutting arm at the third hinge point; and

A drive device fixed with the cutting arm and configured to drive the cutting wheel to rotate,

Wherein an axis of the first hinge point is substantially parallel to an axis of the third hinge point.

2. The grooving apparatus of claim 1, further comprising:

a counterweight removably disposed on the cutting arm; and

A counterweight driver connected with the counterweight,

Wherein, the cutting arm is provided with the sliding part in a side far away from the cutting wheel, the counter weight is connected with the sliding part in a sliding way, and the counter weight driver is configured to drive the counter weight to slide on the cutting arm.

3. The slotting device as claimed in claim 2, wherein the sliding portion includes a first end portion located on a side of the first hinge point away from the third hinge point and a second end portion located on a side of a first dividing line extending in a vertical direction through an end of the cutting wheel away from the first hinge point,

the weight is configured to be slidable to the second end and beyond the first line of demarcation.

4. The slotting device according to claim 2, wherein the first end portion is located on a side of a second dividing line passing through the first hinge point and extending in a vertical direction away from the third hinge point,

The counterweight is configured to be slidable to the first end and beyond the second line of demarcation.

5. The slotting device according to any one of claims 1 to 4, further comprising:

a cutter located on the outer surface of the cutting wheel,

Wherein the driving device is configured to drive the cutting wheel to rotate so as to drive the cutter to cut and slot the rock stratum.

6. The grooving apparatus of any one of claims 1-4, wherein the cutting arm comprises:

A main body portion; and

Two bracket parts, each bracket part is respectively connected with two ends of the main body part,

wherein the two bracket parts are oppositely arranged at intervals to form an accommodating space between the two bracket parts, the third hinge point is positioned on the two bracket parts, the cutting wheel is arranged between the two bracket parts, and part of the cutting wheel is positioned in the accommodating space,

The cutting wheel is close to one end of the main body portion is located between the main body portion and the support portion, the sliding portion comprises a sliding rail far away from the support portion, and the balance weight is arranged on the sliding rail.

7. The slotting device as claimed in claim 6, wherein at least one of the counterweight and the sliding track has a stop means.

8. The grooving apparatus of claim 6, wherein the sliding rail comprises two rail sides protruding from the cutting arm in an axial direction of the first hinge point, the two rail sides being located on both sides of the cutting arm, respectively,

The counterweight driving device comprises two sub-driving parts, and the two sub-driving parts are arranged in one-to-one correspondence with the side parts of the two tracks and are respectively matched with the side parts of the two tracks in a rolling manner.

9. The slotting device according to claim 8, wherein the sub-driving part comprises:

The upper wheel bracket is connected with the counterweight;

The upper wheel is hinged to the upper wheel bracket and is in rolling fit with the top surface of the side part of the track, which is far away from the cutting wheel;

The lower wheel bracket is connected with the counterweight; and

And the lower wheel is hinged to the lower wheel bracket and is in rolling fit with the side part of the track close to the bottom surface of the cutting wheel.

10. the slotting device according to claim 9, wherein the sub-driving part comprises two upper wheel brackets, two upper wheels, two lower wheel brackets, and two lower wheels,

The two upper wheel supports and the two upper wheels are arranged on two sides of the counterweight in the extending direction of the sliding track, and the two lower wheel supports and the two lower wheels are also arranged on two sides of the counterweight in the extending direction of the sliding track.

11. The slotting device according to claim 9, wherein the sub-driving part comprises:

the side wheel bracket is connected with the balance weight;

and the side wheels are hinged to the side wheel brackets and are in rolling fit with the side surfaces between the top surfaces and the bottom surfaces of the side parts of the rails.

12. the slotting device according to any one of claims 1 to 4, further comprising:

A stroke cavity located in the cutting arm and penetrating the cutting arm in a thickness direction of the cutting arm; and

A lift shaft disposed in the stroke chamber and slidable therein,

Wherein the second hinge point is located on the lifting shaft.

13. The slotting device according to claim 12, wherein the stroke cavity comprises a first side and a second side extending in an extension direction of the stroke cavity, the lifting shaft is in contact with at least one of the first side and the second side, the first side is closer to the third hinge point than the second side, and a length of the first side is greater than a length of the second side.

14. The slotting device according to any one of claims 1 to 4, further comprising:

the carrier comprises an upper vehicle body and a lower vehicle body, wherein the upper vehicle body is rotationally connected with the lower vehicle body, and the lower vehicle body is provided with a travelling mechanism; and

A lifting oil cylinder is arranged on the base,

The cutting arm is hinged with the upper vehicle body at the first hinge point, one end of the lifting oil cylinder is hinged with the upper vehicle body, and the other end of the lifting oil cylinder is hinged with the cutting arm at the second hinge point.