CN215923372U - First conveyor and heading machine - Google Patents

Abstract

The utility model provides a first conveyor and a heading machine. The first conveyor includes: the front chute is suitable for being hinged to the front end of a support body of the operation machine; the rear end of the rear chute can rotate around the hinged position of the front chute and the rear chute so as to lift relative to the rear end of the supporting body. The first conveyor can flexibly change the height of the whole first conveyor and the support body through lifting, and can realize relative rotation between the rear chute and the front chute, so that the relative lifting height and the relative included angle between the rear chute and the front chute are flexibly changed, and the flexible regulation and control of the slope gradient of the internal feeding of the first conveyor are further realized, so that the subsequent transportation requirements of different roadways are met, the transportation efficiency and the operation flexibility are improved, and the safety of material transportation is improved.

Description

First conveyor and heading machine

Technical Field

The utility model relates to the technical field of operation machinery, in particular to a first conveyor and a heading machine.

Background

With the continuous development of scientific technology and productivity, the boom-type roadheader has gradually become one of the widely applied working machines in the coal mine and mine excavation process. When the heading machine works underground, the heading machine cuts off the coal rocks through the cutting part, the cut coal rocks are brought into the first conveyor through the star wheel of the shovel part, and then the cut coal rocks are conveyed to the second conveyor through the first conveyor and are continuously conveyed backwards.

At present, close through the bolt between the preceding chute of common first conveyer and the back chute, to the unable nimble regulation of relative elevating height and relative contained angle between preceding chute and the back chute to lead to the pay-off angle between back chute and the preceding chute fixed, the slope gradient of the inside pay-off of unable nimble control first conveyer, and then be difficult to satisfy the follow-up transportation demand in isostructure's tunnel.

SUMMERY OF THE UTILITY MODEL

The utility model provides a first conveyor, which is used for solving the defect that the relative lifting height and the relative included angle between a front chute and a rear chute of the first conveyor in the prior art cannot be flexibly adjusted, and realizing flexible regulation and control of the gradient of inclination of feeding inside the first conveyor, thereby meeting the subsequent transportation requirements of roadways with different structures.

The utility model also provides a heading machine.

The present invention provides a first conveyor comprising:

the front chute is suitable for being hinged to the front end of a support body of the operation machine;

the front end of the rear chute is hinged to the rear end of the front chute, and the rear end of the rear chute can rotate around the hinged position of the front chute and the rear chute so as to lift relative to the rear end of the support body.

According to the first conveyor provided by the utility model, the rear end of the front chute is provided with a front chute rear mounting part, the front end of the rear chute is provided with a rear chute front mounting part, the front chute rear mounting part and the rear chute front mounting part are assembled and connected through a hinge assembly, a first conveying surface of the front chute and a second conveying surface of the rear chute are connected to a conveying surface connecting line, and the conveying surface connecting line and the axis of the hinge assembly are arranged in a superposition manner.

According to the first conveyor provided by the utility model, the front chute is provided with a pair of front chute side plates which are respectively connected to two sides of the first conveying surface in the width direction, and the rear end of each front chute side plate is respectively provided with the front chute rear mounting part;

the rear chute is provided with a pair of rear chute side plates which are respectively connected to two sides of the second transportation surface in the width direction, and the front end of each rear chute side plate is respectively provided with a rear chute front mounting part;

wherein, installation department and corresponding side behind the preceding chute installation department assembles in the coplanar before the back chute, and installation department and corresponding side behind the preceding chute installation department is equipped with relative first hypotenuse and the second hypotenuse that sets up respectively before the back chute, first hypotenuse with form between the second hypotenuse with articulated subassembly's axle center is the contained angle on summit.

According to the first conveyor provided by the utility model, the front chute rear mounting part is provided with the assembling part, the rear chute front mounting part on the corresponding side is provided with the assembling groove, the assembling part is assembled in the assembling groove through the hinge assembly, the first bevel edge is connected to the assembling part, and the second bevel edge is connected to the assembling groove and forms the included angle with the first bevel edge.

According to a first conveyor provided by the utility model, the hinge assembly comprises:

the hinge hole is arranged on the front chute rear mounting part;

the hinge sleeve is movably inserted in the hinge hole;

and the hinge pin is movably inserted in the hinge sleeve.

According to a first conveyor provided by the utility model, the hinge assembly further comprises:

the protective plate is fixedly connected to the outside of the front end of the rear chute front mounting part and covers the outside of the front chute rear mounting part, and a through hole capable of being assembled outside the hinge sleeve is formed in the protective plate;

the protective sleeve is sleeved between the hinge sleeve and the hinge pin;

the positioning plate is fixedly connected to the outside of the protection plate, the hinge pin is provided with a groove along the radial direction, the positioning plate is embedded in the groove, and the protective sleeve and the hinge sleeve are both positioned on the inner side of the positioning plate.

According to the first conveyor provided by the utility model, the first conveyor further comprises a limiting mechanism arranged on the front chute rear mounting part and the rear chute front mounting part, and the limiting mechanism is used for limiting the rotation angle of the rear chute.

According to a first conveyor provided by the utility model, the limiting mechanism comprises:

the first positioning track is constructed on the front chute rear mounting part by taking the axis of the hinge assembly as a circle center;

the second positioning track is constructed on the protection plate by taking the axis of the hinge assembly as a circle center;

the sliding pin is inserted into the first positioning track and can slide in at least one of the first positioning track and the first positioning track.

According to the first conveyor provided by the utility model, the support body comprises the body part and the rear support part which are connected in a front-back manner, the front chute is embedded in the body part, the front end of the front chute is hinged to the front end of the body part, and the rear chute is connected to the rear support part through the lifting driving cylinder.

The utility model also provides a heading machine which comprises the first conveyor.

The first conveyor comprises a front chute and a rear chute, wherein the front end of the front chute is suitable for being hinged to the front end of a supporting body of the operation machine, the front end of the rear chute is hinged to the rear end of the front chute, and the rear end of the rear chute can rotate around the hinged position of the front chute and the rear chute so as to be lifted relative to the rear end of the supporting body. The first conveyor can flexibly change the relative lifting height and the relative included angle between the rear end of the rear chute and the hinged part of the front chute and the rear chute through the relative rotation between the rear chute and the front chute, so as to flexibly regulate and control the gradient of inclination of the internal feeding of the first conveyor; and the relative lifting of the rear end of the rear chute and the support body can be utilized, so that the inclination angle between the whole first conveyor and the support body is adjusted. It can be seen that this first conveyer can adapt to the follow-up transportation demand in different drifts, improves conveying efficiency and operation flexibility to improve the security of material transportation.

The heading machine provided by the utility model comprises the first conveyor. Through setting up foretell first conveyer for this entry driving machine can realize the whole advantages of above-mentioned first conveyer, specifically no longer gives details here.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic illustration of a first conveyor provided in accordance with the present invention mounted to a work machine;

FIG. 2 is a front view of a first conveyor provided by the present invention;

FIG. 3 is a top view of a first conveyor provided by the present invention;

FIG. 4 is a schematic view of the configuration of the first conveyor of the present invention with the front and rear working surfaces cooperating;

FIG. 5 is a front view of a front chute provided by the present invention;

FIG. 6 is a front view of a rear chute side plate provided by the present invention;

FIG. 7 is a rear view of a rear chute side plate provided by the present invention;

figure 8 is a cross-sectional view of the hinge location between the front and rear chutes provided by the present invention.

Reference numerals:

1: a front chute; 11: a front chute front mounting section; 12: a front connecting groove;

13: a hinge pin; 131: positioning a plate; 132: a seal member;

133: a protection plate; 134: a protective sleeve; 14: a front chute rear mounting section;

141: a first beveled edge; 142: an assembling portion; 15: a first positioning track;

151: a hinge hole; 16: pressing a chain plate; 17: a first transport plane;

171: connecting lines of the conveying surface; 2: a rear chute; 20: a lifting drive part;

21: a rear chute front mounting section; 211: a second positioning track; 212: a second beveled edge;

213: assembling a groove; 22: a rear chute rear mounting section; 23: tensioning the drive cylinder;

24: a drive motor; 25: a chain; 26: a sprocket;

27: a hinge sleeve; 28: a second transport plane; 3: a main body portion;

31: a front hinge portion; 32: a rear fixing part; 4: a rear supporting part;

5: and a lifting driving cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first conveyor according to the present invention will be described in detail with reference to fig. 1 to 8, and the work machine according to the present invention will be described in detail with reference to a heading machine as an example.

As shown in fig. 1, the first conveyor according to the embodiment of the present invention is adapted to be installed in a support body of a heading machine. The support body comprises a body portion 3 and a rear support portion 4 which are connected in a front-rear direction. Preferably, the front end of the main body 3 is provided with a front hinge portion 31, the rear end of the main body 3 is provided with a rear fixing portion 32, and the main body 3 is fastened to the front end of the rear support 4 by a bolt passing through the rear fixing portion 32 to fasten the main body 3 to the rear support 4.

As shown in fig. 2 and 3, the first conveyor comprises a front chute 1 and a rear chute 2, the front end of the front chute 1 is suitable for being hinged at the front end of the support body of the heading machine, the front end of the rear chute 2 is hinged with the rear end of the front chute 1, and the rear end of the rear chute 2 can rotate around the hinged position of the front chute 1 and the rear chute 2 so as to be lifted and lowered relative to the rear end of the support body. Through the structural arrangement, the first conveyor can rotate relative to the front chute 1 through the rear chute 2, so that the relative lifting height and the relative included angle between the rear end of the rear chute 2 and the hinged part of the front chute 1 and the rear chute 2 are flexibly changed, and the flexible regulation and control of the slope gradient of the internal feeding of the first conveyor are realized; and the relative lifting of the rear end of the rear chute 2 and the support body can be utilized, so that the inclination angle between the whole first conveyor and the support body can be adjusted. It can be seen that this first conveyer can adapt to the follow-up transportation demand in different drifts, improves conveying efficiency and operation flexibility to improve the security of material transportation.

Understandably, it is preferred that the front chute 1 and the rear chute 2 of the first conveyor constitute a chute structure. The chute structure as a whole passes through the inside of the body portion 3 to avoid that the front chute 1 is too high to exceed the height limit of the support body. The front chute 1 is integrally fitted into the main body 3, and the front end of the front chute 1 is hinged to the front hinge portion 31 at the front end of the main body 3, so that the overall structural stability of the first conveyor is improved. The front end of the rear chute 2 is provided with the hinged part, and the position of the rear chute 2 far away from the hinged part can be connected to the rear end of the rear supporting part 4 through the lifting driving cylinder 5. The rear end of the rear chute 2 can be driven to lift relative to the supporting body through the telescopic motion of the lifting driving cylinder 5, so that the included angle between the rear chute 2 and the front chute 1 is changed. The first conveyor can lock the front chute 1 and the body part 3 by using the front hinge part 31, so that the angle machine height of the front chute 1 is fixed; the front hinge part 31 can be set to be a rotatable structure, so that the front chute 1 and the body part 3 can rotate relatively by using the front hinge part 31 in the lifting process of the rear chute 2, and the integral height of the first conveyor can be greatly adjusted, so that the requirement of the blanking height in a wider range can be met.

Understandably, the front end of the front chute 1 is preferably correspondingly connected with a shovel plate part positioned at the front end of the support body, so that cut rock coal materials can stably fall into the front chute 1 and are transported backwards to the rear chute 2. Preferably the rear end of the rear chute 2 is adapted to be connected to a second conveyor for stable rearward transport of material to the second conveyor.

It can be understood that for the convenience of assembly and the optimized structure, the front end of the front chute 1 is preferably provided with a front chute front mounting part 11, and the rear end of the front chute 1 is preferably provided with a front chute rear mounting part 14. Preferably, the front end of the rear chute 2 is provided with a rear chute front mounting part 21, and the rear end of the rear chute 2 is provided with a rear chute rear mounting part 22.

In some embodiments, as shown in fig. 3 and 4, the front chute rear mounting portion 14 is in assembled connection with the rear chute front mounting portion 21 by a hinge assembly. The first transport surface 17 of the front chute 1 and the second transport surface 28 of the rear chute 2 are connected to a transport surface connecting line 171. In addition, during the rotation of the rear chute 2 relative to the front chute 1, the first conveying surface 17 of the front chute 1 and the second conveying surface 28 of the rear chute 2 are always connected to the conveying surface connecting line 171. Preferably this transportation face connecting wire 171 sets up with hinge assembly's axis coincidence, in order to guarantee before chute 1 and back chute 2 between relative rotation to arbitrary contained angle, first transportation face 17 links to each other all the time with second transportation face 28, the junction of avoiding preceding chute 1 and back chute 2 leaks the material, and can not lead to the fact adverse effect to the relative rotation between preceding chute 1 and the back chute 2 and the whole lift process of first conveyer, improve material transport security, reliability and smoothness nature.

In order to realize that first conveyer guarantees reliable fortune material on the basis of the inside fortune material angle of adjustment, improve the pay-off smoothness nature, security and the reliability of preceding chute 1 and back chute 2, chute 1 becomes continuous chute structure setting respectively with back chute 2 before preferred. The front chute 1 is provided with a pair of front chute side plates which are respectively connected to two sides of the first conveying surface 17 in the width direction so as to ensure that the first conveying surface 17 is positioned in the chute of the front chute 1; and the rear end of each front chute side plate is provided with a front chute rear mounting portion 14, respectively. Similarly, the rear chute 2 is provided with a pair of rear chute side plates which are respectively connected to two sides of the second conveying surface 28 in the width direction, so as to ensure that the second conveying surface 28 is positioned in the chute of the rear chute 2; and the front end of each rear chute side plate is provided with a rear chute front mounting part 21. Wherein the front chute rear mounting portion 14 and the rear chute front mounting portion 28 on the same side are assembled on the same plane. The front chute rear mounting portion 14 on the side and the rear chute front mounting portion 28 on the side are respectively provided with a first oblique edge 141 and a second oblique edge 212 which are oppositely arranged, and as shown in fig. 5 and 7, an included angle which takes the axis of the hinge assembly as a vertex is formed between the first oblique edge 141 and the second oblique edge 212. The relative pivoted in-process of preceding chute 1 and back chute 2 can be guaranteed in the setting of first hypotenuse 141 and second hypotenuse 212, can reserve out the rotation allowance between installation department 21 before installation department 14 and the back chute behind the preceding chute, can rotate in a flexible way at controllable angle within range on the basis of the link parallel and level of guaranteeing first transportation face 17 and second transportation face 28, and the chute curb plate receives the hindrance and the card of preceding chute curb plate to die after avoiding back chute 2 to rotate the in-process.

It will be appreciated that to facilitate the mounting of the hinge assembly and reliable rotation of the rear chute 2, the front chute rear mounting portion 14 is preferably provided with a mounting portion 142 and the rear chute front mounting portion 21 of the respective side is provided with a mounting slot 213. As shown in fig. 5, the fitting portion 142 is provided at an intermediate position of the end of the front chute rear mounting portion 14 toward the rear chute front mounting portion 21 on the corresponding side; correspondingly, as shown in fig. 7, the fitting groove 213 is provided at a position intermediate to the end of the rear chute mounting part 21 toward the front chute mounting part 14 on the corresponding side, and it is sufficient to ensure that the fitting portion 142 can be fitted to the fitting groove 213 by a hinge assembly. Preferably, the first inclined side 141 is connected to the fitting portion 142, and the second inclined side 212 is connected to the fitting groove 213. Also, preferably, the first inclined edge 141 and the second inclined edge 212 are both located on the same side of the hinge assembly, for example, the first inclined edge 141 and the second inclined edge 212 are both located on the upper side of the hinge assembly, so that the included angle between the first inclined edge 141 and the second inclined edge 212 is formed to facilitate the rotation of the rear chute 2.

In some embodiments, as shown in fig. 5-8, the hinge assembly includes a hinge hole 151, a hinge sleeve 27, and a hinge pin 13. The hinge holes 151 are provided in the front chute rear mounting portion 14, preferably symmetrically provided in the front chute rear mounting portion 14 of the pair of front chute side plates. The hinge sleeve 27 is movably inserted into the hinge hole 151. The hinge pin 13 is movably inserted into the shaft hole of the hinge sleeve 27. The arrangement is such that the hinge assemblies on both sides of the first conveyor are symmetrically arranged, the hinge holes 151, the hinge sleeves 27 and the hinge pins 13 on the same side are coaxially arranged, and preferably the above-mentioned conveying surface connecting lines 171 are located on the axes of the hinge holes 151, the hinge sleeves 27 and the hinge pins 13, so as to ensure that the first conveying surface 17 and the second conveying surface 28 are always connected during the rotation of the rear chute 2 relative to the front chute 1.

As can be appreciated, as shown in fig. 2, 3 and 8, in order to improve the structural reliability, positioning accuracy and sealing property of the hinge assembly between the front and rear chutes 1 and 2, it is preferable that the hinge assembly further includes a positioning plate 131, a protective plate 133 and a protective sleeve 134. The protection plate 133 is fixedly connected to the front end of the front rear chute mounting part 21 and covers the front rear chute mounting part 14, so that the front rear chute mounting part 14 and the front rear chute mounting part 21 are jointly protected, a gap is reserved between the first inclined edge 141 and the second inclined edge 212 due to the included angle formed between the first inclined edge 141 and the second inclined edge 212, the protection plate 133 can cover the outer side of the gap, and material leakage in the material conveying process is prevented. The protective plate 133 is provided with a through hole capable of being assembled outside the hinge sleeve 27 so as to reliably assemble the hinge hole 151, the hinge sleeve 27 and the hinge pin 13, and can protect the whole hinge assembly from moisture, air and abrasion. The protective sleeve 134 is sleeved between the hinge sleeve 27 and the hinge pin 13, and can position and fill the space between the hinge pin 13 and the hinge sleeve 27, and can protect the hinge assembly against moisture, air and abrasion. The positioning plate 131 is fixedly connected to the outside of the protection plate 133, and the protection sleeve 134 and the hinge sleeve 27 are both located at the inner side of the positioning plate 131, so that the positioning plate 131 can play a role in stopping the protection sleeve 134 and the hinge sleeve 27 from being released. The hinge pin 13 is provided with a groove along the radial direction, the positioning plate 131 is embedded in the groove, and in the process of relative rotation between the front chute 1 and the rear chute 2, the positioning plate 131 can move in the groove at the same axial position of the hinge pin 13 all the time, so that the axial positioning of the hinge pin 13 is realized by utilizing the matching relationship of the positioning plate 131 and the groove of the hinge pin 13, and the structural reliability and the positioning accuracy of the hinge assembly are further improved.

It will be appreciated that the hinge holes 151 of the front chute 1 and the hinge sleeves 27 of the rear chute 2 are preferably provided with an interference fit for axial retention. The outward end surface of the protective sleeve 134 is provided with a flange to increase the contact area between the protective sleeve 134 and the positioning plate 131, thereby improving the close contact. The inner wall of the protective sleeve 134 is provided with a circumferential groove, a sealing element 132 is embedded in the groove, and the sealing element 132 is sealed between the protective sleeve 134 and the hinge pin 13 to realize a sealing effect. The hinge pin 13 is internally configured with oil holes to allow lubrication inside and outside the protective sleeve 134. Each end of the oil filler point is provided with an oil filler point on the outer wall of the hinge pin 13, and after the oil filler point of the hinge pin 13 is filled with oil, each port of the oil filler point is blocked by a plug, so that oil leakage is avoided.

In some embodiments, as shown in fig. 5 to 7, in order to reliably limit the relative rotation between the front chute 1 and the rear chute 2 and prevent the rear chute 2 from shifting or over-rotating during the rotation relative to the front chute 1, it is preferable that a matching limiting mechanism is provided between the front chute rear mounting part 14 and the rear chute front mounting part 21. The limiting mechanism is used for limiting the rotation angle of the rear chute 2 in the process that the rear chute 2 rotates relative to the front chute 1 through the hinge assembly.

In some embodiments, it is preferred that the spacing mechanism comprises a first positioning track 15 and a second positioning track 211. The first positioning rail 15 is formed at the front chute rear mounting portion 14 with the axis of the hinge assembly as the center of a circle. The second positioning rail 211 is configured on the protection plate 133 with the axis of the hinge assembly as the center of circle. The preceding installation department 21 passes through the protection board assembly behind the preceding installation department 14 of chute 1 and the back chute of back chute 2, and the second positioning track 211 of protection board 133 can align in the outside of first positioning track 15 to guarantee that first positioning track 15 and second positioning track 211 coincide mutually, constitute jointly and can restrict back chute 2 for preceding chute 1 turned angle's spacing track.

Note that the axis of the hinge assembly is the axis of at least one of the hinge hole 151, the hinge sleeve 27, and the hinge pin 13. Similarly, the axis of the hinge assembly is the axis of at least one of the hinge hole 151, the hinge sleeve 27 and the hinge pin 13.

It will be appreciated that the spacing mechanism also includes a sliding pin. The slide pin is inserted into the first positioning rail 15 and the first positioning rail 15, and is slidable in at least one of the first positioning rail 15 and the first positioning rail 15. In other words, the limiting mechanism can be arranged as follows: one end of the sliding pin is fixed in any one of the first positioning track 15 and is in sliding fit with the other one of the first positioning track 15 and the first positioning track 15, and the sliding pin and one of the first positioning track 15 and the first positioning track 15 slide relatively by utilizing the relative rotation between the first positioning track 15 and the first positioning track 15, so that the limiting effect is realized; or, the movable cartridge of slide pin is in first locating track 15 and first locating track 15, can establish to the shutoff piece at the both ends of slide pin for avoiding droing, utilizes the slide pin respectively with first locating track 15 and first locating track 15 sliding fit, realizes the relative rotation of more big margin between slide pin and first locating track 15 and the first locating track 15, and then realizes wider limiting displacement.

It should be noted that the limiting mechanism is not limited to the above-mentioned structure, and only needs to reliably limit the rotation angle and the rotation amplitude of the rear chute 2.

It will be appreciated that the first positioning track 15 and the first positioning track 15 are preferably each configured as an arcuate track structure centered on the hinge assembly and having the same radius.

In some embodiments, as shown in fig. 4, it is preferable that the front chute 1 is integrally formed in a trough-shaped structure, and the first conveying surface 17 is formed in the front chute 1 along the length direction of the front chute 1 and is in the same plane as the axis of the hinge hole 151. As shown in fig. 5, a front connecting groove 12 having an opening is formed at the bottom of the front chute front mounting portion 21 so as to be hinged with the front end of the body portion 3. Hinge holes 151 are formed in the fitting portions 142 at the ends of the front-chute rear mounting portion 14, and first positioning rails 15 are formed at positions where the rear ends of the front-chute side plates are located on the front sides of the hinge holes 151.

It can be understood that it is preferable that the protection plates 133 are respectively installed outside the front chute front installation part 11 and the front chute rear installation part 14 of the front chute 1, and outside the rear chute front installation part 21 and the rear chute rear installation part 22 of the rear chute 2, so as to prevent the exposure of the inner cavity wall of the first conveyor during the relative rotation between the front chute 1 and the rear chute 2.

In some embodiments, as shown in figures 6 and 7, it is preferred that the rear chute 2 is integrally of a trough-type construction. As shown in fig. 6, the middle portion of the rear chute 2 is provided with a lifting driving portion 20, and the lifting driving portion 20 is adapted to be connected to one end of a lifting driving cylinder, and the other end of the lifting driving cylinder is connected to the rear supporting portion. As shown in fig. 4 and 7, the second transport surface 28 is formed in the rear chute 2 along the length of the rear chute 2 and is coplanar with the axis of the hinge sleeve 27. As shown in fig. 6 and 7, the rear chute rear mounting portion 22 of the rear chute 2 is preferably configured with a mounting groove provided along the length of the rear chute 2 for positioning and mounting a driving device described below.

In some embodiments, as shown in fig. 2 and 3, the first conveyor further comprises a drive device, a chainbelt assembly, and a tensioning device. The drive device is mounted to the rear chute mounting portion 22. The scraper chain plate assembly is connected to the drive means and can be driven by the drive means to roll cyclically about the first and second transport surfaces 17, 28. In the rolling process of the scraper chain plate assembly, the scraper chain plate assembly is continuously contacted with the upper surface of the first conveying surface 17 and the upper surface of the second conveying surface 28, so that the material pushing process from the first conveying surface 17 to the second conveying surface 28 is realized; and, the scraper chain plate assemblies roll in opposite directions on the lower surfaces of the first and second conveying surfaces 17 and 28, thereby enabling the scraper chain plate assemblies to perform a process of rolling circularly around the first and second conveying surfaces 17 and 28. The tensioning device is connected between the driving device and the rear chute 2 and used for adjusting the tensioning degree of the scraper chain plate assembly on the corresponding conveying surface by adjusting the tensioning force between the driving device and the scraper chain plate assembly, so that the contact part of the scraper chain plate assembly and the corresponding conveying surface is ensured to be more closely attached, and material leakage in the material pushing process is avoided.

In some embodiments, as shown in FIG. 3, the drive means includes a drive motor 24 and a sprocket 26. The driving motor 24 is mounted on the rear chute rear mounting portion 22, and a power output shaft of the driving motor 24 penetrates the rear chute rear mounting portion 22 along the width direction of the rear chute 2. Preferably, the driving motor 24 is installed outside the installation groove, and the power output shaft of the driving motor 24 penetrates from the installation groove and is transversely arranged in the rear chute 2 and is positioned at the rear chute installation part 22. Preferably, the sprocket 26 is mounted on the power take-off shaft of the drive motor 24 and the portion of the scraper chain assembly located at the rear chute rear mounting portion 22 is mounted over the sprocket 26. The drive motor 24 rotates the drive sprocket 26 by rotation of its power output shaft, thereby driving the flight chain assembly to roll cyclically about the first and second transport surfaces 17, 28.

In some embodiments, as shown in fig. 3, the scraper chain assembly comprises a chain 25. The chain 25 is provided in the front chute 1 and the rear chute 2, and surrounds the upper and lower sides of the first conveying surface 17 and the second conveying surface 28. Preferably, the chain 25 is of a closed chain type construction. One end of the chain 25 is sleeved outside the follow-up shaft of the front chute mounting part 11, and the other end of the chain 25 is sleeved outside the chain wheel 26. The sprocket 26 rotates to rotate the chain 25 around the first conveying surface 17 and the second conveying surface 28, so that the chain 25 forms a feeding section on the upper surface of the first conveying surface 17 and the upper surface of the second conveying surface 28, and the chain 25 forms a rolling section on the lower surface of the first conveying surface 17 and the lower surface of the second conveying surface 28.

To facilitate the pushing of the material, the scraper chain assembly preferably comprises a pair of chains 25 as described above. The pair of chains 25 are arranged at intervals according to the above-described structure. A plurality of pusher plates are installed between the pair of chains 25 at intervals. In other words, the pair of scraper chain components form a side double-chain structure in the first conveyor, and have the advantages of stable structure, uniform traction distribution and convenient maintenance. And the feeding section formed by the pair of chains 25 in the rolling process can enable each material pushing plate to be attached to the upper surface of the conveying surface under the tensioning action of the tensioning device, and enable each material pushing plate to push materials to move from front to back along the conveying surface along with the forward and backward rolling of the pair of chains 25, so that the reliable and stable material pushing process is realized. And a gap is reserved between the rolling section formed by the pair of chains 25 in the rolling process and the lower surface of the corresponding conveying surface, so that unnecessary obstruction of the rolling of the chains 25 to the material pushing process on the conveying surface is avoided.

It will be appreciated that the scraper chain assembly also includes a number of scraper chain plates 16. A plurality of chain pressing plates 16 are installed at intervals in the front chute 1 and the rear chute 2 along the length direction of the first conveyor. The conveying sections formed by the chain 25 during rolling are located between each chain pressing plate 16 and the corresponding conveying surface. The link joint board 16 can improve the laminating degree of chain 25 and transportation face to no matter realize that preceding chute 1 rotates to arbitrary angle with back chute 2, can both guarantee that the scraping wings hugs closely the transportation face, prevent to leak the material, improve the security and the reliability of material transportation.

In some embodiments, as shown in FIG. 2, it is preferred that the tensioning device include a tensioning drive cylinder 23. The tensioning drive cylinder 23 is arranged outside the rear chute 2 and is connected between the side wall of the rear chute 2 and the drive means. The tension driving cylinder 23 can adjust the position of the power output shaft of the driving motor 24 at the rear chute rear mounting portion 22 and the tension between the power output shaft and the scraper chain assembly through telescopic motion, thereby adjusting the tension degree of the scraper chain assembly.

It will be appreciated that the preferred drive means comprises a pair of drive motors 24. The pair of drive motors 24 are connected to the outside of both sides of the rear chute rear mounting portion 22, respectively, and the pair of drive motors 24 are linked by a power output shaft. Preferably, the power output shaft traverses the inside of the rear chute 2, and both ends of the power output shaft pass through and are connected to a pair of drive motors 24 from a pair of side plates of the rear chute 2 at mounting grooves of the rear chute rear mounting portion 22.

Correspondingly, the tensioner preferably also includes a pair of tensioning drive cylinders 23. A pair of tensioning drive cylinders 23 are symmetrically arranged outside both sides of the rear chute 2, and both ends of each tensioning drive cylinder 23 are respectively connected between the drive motor 24 and the outer side wall of the rear chute 2. Utilize a pair of tensioning actuating cylinder 23 can balance the tensile force between rear chute 2 and the drive motor 24 of rear chute 2 both sides, and then balance the tensile force of scraping the scraper chain subassembly for between a pair of lateral wall of rear chute 2 to ensure that the drive power of rear chute 2 both sides is balanced, improve the pay-off stability of first conveyer.

As shown in fig. 1, the present disclosure provides a work machine including the first conveyor as described above. Through setting up foretell first cargo airplane for this operation machinery can realize the whole advantages of above-mentioned first cargo airplane, and it is not repeated here specifically to be specific.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A first conveyor, comprising:

the front chute (1) is suitable for being hinged to the front end of a support body of the operation machine;

rear chute (2), the front end with the rear end of preceding chute (1) is articulated mutually, the rear end of rear chute (2) can center on preceding chute (1) with the articulated department of rear chute (2) rotates, in order for support the rear end of body goes up and down.

2. The first conveyor according to claim 1, characterized in that the rear end of the front chute (1) is provided with a front chute rear mounting part (14), the front end of the rear chute (2) is provided with a rear chute front mounting part (21), the front chute rear mounting part (14) is connected with the rear chute front mounting part (21) through a hinge assembly in an assembling manner, the first conveying surface (17) of the front chute (1) and the second conveying surface (28) of the rear chute (2) are connected to a conveying surface connecting line (171), and the conveying surface connecting line (171) is coincided with the axis of the hinge assembly.

3. The first conveyor according to claim 2, wherein the front chute (1) is provided with a pair of front chute side plates which are respectively connected to both sides in the width direction of the first conveying surface (17), and a rear end of each front chute side plate is respectively provided with the front chute rear mounting portion (14);

the rear chute (2) is provided with a pair of rear chute side plates which are respectively connected to two sides of the second conveying surface (28) in the width direction, and the front end of each rear chute side plate is respectively provided with a rear chute front mounting part (21);

wherein, installation department (14) and corresponding side behind preceding chute installation department (21) assemble in the coplanar before the back chute, and installation department (14) and corresponding side behind the preceding chute installation department (21) are equipped with relative first hypotenuse (141) and the second hypotenuse (212) that sets up respectively before the back chute, first hypotenuse (141) with form between second hypotenuse (212) with the axle center of articulated subassembly is the contained angle on summit.

4. The first conveyor according to claim 3, characterized in that the front chute rear mounting portion (14) is provided with a fitting portion (142), the rear chute front mounting portion (21) of the corresponding side is provided with a fitting groove (213), the fitting portion (142) is fitted to the fitting groove (213) by the hinge assembly, the first inclined edge (141) is connected to the fitting portion (142), and the second inclined edge (212) is connected to the fitting groove (213) and forms the angle with the first inclined edge (141).

5. The first conveyor of claim 3, wherein the hinge assembly comprises:

a hinge hole (151) provided in the front chute rear mounting section (14);

the hinge sleeve (27) is movably inserted into the hinge hole (151);

the hinge pin (13) is movably inserted in the hinge sleeve (27).

6. The first conveyor of claim 5, wherein the hinge assembly further comprises:

the protective plate (133) is fixedly connected to the outside of the front end of the rear chute front mounting part (21) and covers the outside of the front chute rear mounting part (14), and a through hole capable of being assembled outside the hinge sleeve (27) is formed in the protective plate (133);

the protective sleeve (134) is sleeved between the hinge sleeve (27) and the hinge pin (13);

the positioning plate (131) is fixedly connected to the outside of the protection plate (133), the hinge pin (13) is provided with a groove along the radial direction, the positioning plate (131) is embedded in the groove, and the protective sleeve (134) and the hinge sleeve (27) are both positioned on the inner side of the positioning plate (131).

7. The first conveyor according to claim 6, further comprising a limiting mechanism arranged on the front chute rear mounting part (14) and the rear chute front mounting part (21), wherein the limiting mechanism is used for limiting the rotation angle of the rear chute (2).

8. The first conveyor of claim 7, wherein the spacing mechanism comprises:

a first positioning track (15) which is constructed on the front chute rear mounting part (14) by taking the axis of the hinge assembly as a circle center;

a second positioning rail (211) configured on the protection plate (133) by taking the axis of the hinge assembly as a circle center;

the sliding pin is inserted into the first positioning track (15) and can slide in at least one of the first positioning track (15) and the first positioning track (15).

9. The first conveyor according to any one of claims 1 to 8, characterized in that the support body comprises a body (3) and a rear support (4) connected in a front-to-rear direction, the front chute (1) is embedded in the body (3) and the front end of the front chute (1) is hinged to the front end of the body (3), and the rear chute (2) is connected to the rear support (4) by means of a lifting drive cylinder (5).

10. A heading machine comprising a first conveyor as claimed in any one of claims 1 to 9.

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