CN113146524A

CN113146524A - Quick screwing device for composite bolt

Info

Publication number: CN113146524A
Application number: CN202110256636.2A
Authority: CN
Inventors: 于海龙; 刘伯程; 马印; 高兴龙
Original assignee: Qingdao Jiaonan Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Jiaonan Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-07-23

Abstract

The present invention relates to the technical field of composite bolt fastening, in particular to a rapid screwing device for composite bolts, which comprises an inner sleeve, an outer sleeve and a clutch assembly, wherein the inner sleeve is arranged inside the outer sleeve, The inner sleeve can be sleeved and fixed with the bolts of the composite bolts, the outer sleeve can be sleeved and fixed with the nuts of the composite bolts, the outer sleeve is drivingly connected with the driving source, and the clutch assembly can be The combination and separation of the inner sleeve and the outer sleeve are realized. The invention can realize the rotation and stillness of the inner sleeve by arranging the clutch assembly. During the tightening process of the composite bolt, there is no need to disassemble and replace different types of sleeves, and there is no need for two sets of screwing devices, which effectively reduces the cost and can Fast tightening of composite bolts is achieved with high tightening efficiency.

Description

Quick screwing device for composite bolt

Technical Field

The invention relates to the technical field of fastening of composite bolts, in particular to a quick screwing device for a composite bolt.

Background

The first method is that a gas gun is matched with two types of sleeves, after the bolt is fastened by using one type of sleeve, the sleeve is pulled out of the gas gun, and the other type of sleeve is replaced to fasten the nut on the bolt; the second is to use two air guns, after one air gun is used for fastening the bolt, the other air gun is taken for fastening the nut on the bolt. The two methods have the defects of high investment cost, complex assembly process and low assembly efficiency.

Disclosure of Invention

The invention aims to provide a quick screwing device for a composite bolt, which aims to solve the technical problems of high input cost, complex assembly and low assembly efficiency in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a device is twisted soon fast to composite bolt, includes inner skleeve, outer sleeve and clutch subassembly, the inner skleeve set up in the inside of outer sleeve, the inner skleeve can with composite bolt's bolt cover is established fixedly, the outer sleeve can with composite bolt's nut cover is established fixedly, clutch subassembly can realize the inner skleeve with the combination and the separation of outer sleeve.

As the preferred technical scheme of the quick screwing device of the compound bolt, the clutch assembly is arranged in the outer sleeve and comprises a first clutch block, a second clutch block, a clutch spring, a spring fixing part and a transmission shaft, the first clutch block, the second clutch block, the clutch spring and the spring fixing part are all sleeved on the periphery of the transmission shaft, a driving source is connected with the first clutch block, the first clutch block is connected with the outer sleeve, the first clutch block is close to the end surface of the second clutch block and is provided with a first bulge, the second clutch block is close to the end surface of the first clutch block and is provided with a second bulge, the side surface of the first bulge can be mutually abutted and matched with the side surface of the second bulge, and the side surface of the first bulge and the side surface of the second bulge are inclined planes, the second clutch piece can be in the direction of inclined plane is kept away from downwards the direction removal of first clutch piece, clutch spring compression set up in the second clutch piece with between the spring mounting, the spring mounting with the transmission shaft links firmly, the transmission shaft with muffjoint.

As an optimal technical scheme of the quick screwing device for the composite bolt, a plurality of first bulges are circumferentially distributed on the first clutch block, a plurality of second bulges are circumferentially distributed on the second clutch block, and the first bulges are in one-to-one correspondence with the second bulges.

As a preferred technical scheme of the quick screwing device for the composite bolt, the cross sections of the first protrusion and the second protrusion are both trapezoidal, the small end of the first protrusion faces the second clutch block, and the small end of the second protrusion faces the first clutch block.

As a preferable technical solution of the quick screwing device for the compound bolt, a transmission link is connected to the first clutch block, and the transmission link is used for being connected with the driving source.

As an optimal technical scheme of the quick screwing device for the composite bolt, clamping grooves are circumferentially formed in the peripheral surface of the transmission connecting rod and are used for being clamped with the driving source.

As a preferable technical solution of the quick screwing device for the compound bolt, a spring washer is provided between the clutch spring and the spring fixing member.

As a preferable technical solution of the quick screwing device for the compound bolt, a ball is disposed between the first clutch block and the transmission shaft.

As a preferable technical solution of the quick screwing device for the composite bolt, a ball is disposed between the inner sleeve and the outer sleeve.

As a preferable mode of the quick-screwing device for a composite bolt, the outer sleeve includes a first sleeve portion and a second sleeve portion, the first sleeve portion has a diameter smaller than that of the second sleeve portion, the inner sleeve is located in the first sleeve portion, and the clutch assembly is located in the second sleeve portion.

The invention has the beneficial effects that:

the invention provides a quick screwing device for a composite bolt, which comprises an inner sleeve, an outer sleeve and a clutch assembly, wherein the inner sleeve is arranged inside the outer sleeve, the inner sleeve can be fixedly sleeved with the bolt of the composite bolt, the outer sleeve can be fixedly sleeved with the nut of the composite bolt, the outer sleeve is in driving connection with a driving source, and the clutch assembly can realize the combination and separation of the inner sleeve and the outer sleeve. When the quick screwing device provided by the invention is used for fastening a composite bolt, firstly, an inner sleeve and a bolt of the composite bolt are sleeved and fixed, and an outer sleeve and a nut of the composite bolt are sleeved and fixed; then, the inner sleeve and the outer sleeve are combined through the clutch assembly, the inner sleeve and the outer sleeve are driven by the driving source to rotate simultaneously, the inner sleeve screws the bolt, and the outer sleeve screws the nut; when the inner sleeve drives the bolt to be screwed in place, the inner sleeve and the outer sleeve are separated through the clutch assembly, the outer sleeve is driven by the driving source to rotate continuously, and the outer sleeve is used for continuously screwing the nut in place. According to the quick screwing device for the composite bolt, the clutch assembly is arranged, so that the inner sleeve can rotate and stand still, the sleeves with different types do not need to be disassembled and replaced in the process of fastening the composite bolt, two screwing devices are not needed, the cost is effectively reduced, the composite bolt can be quickly fastened, and the fastening efficiency is high.

Drawings

FIG. 1 is a schematic structural view of a composite bolt;

fig. 2 is a schematic structural view of a quick screwing device for a composite bolt according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of the quick-screwing device for a composite bolt according to the present invention, after the outer sleeve is removed;

fig. 4 is a sectional view of a quick screwing device for a composite bolt according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a first clutch block in accordance with an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a second clutch block according to an embodiment of the present invention.

In the figure:

1. a bolt; 2. a nut;

10. an outer sleeve; 11. a first sleeve portion; 12. a second sleeve portion; 20. an inner sleeve; 31. a first clutch block; 311. a first protrusion; 32. a second clutch block; 321. a second protrusion; 33. a clutch spring; 34. a spring washer; 35. a spring mount; 36. a drive shaft; 40. a transmission connecting rod; 41. a clamping groove.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The invention provides a quick screwing device for a composite bolt, which has a structure shown in figure 1 and comprises a bolt 1 and a nut 2. The structure of the quick screwing device is shown in fig. 2 to 6, and comprises an inner sleeve 20, an outer sleeve 10 and a clutch assembly, wherein the inner sleeve 20 is arranged inside the outer sleeve 10, the inner sleeve 20 can be fixedly sleeved with a bolt 1 of a composite bolt, the outer sleeve 10 can be fixedly sleeved with a nut 2 of the composite bolt, the outer sleeve 10 is in driving connection with a driving source, and the clutch assembly can realize the combination and separation of the inner sleeve 20 and the outer sleeve 10. When the quick screwing device provided by the invention is used for fastening a composite bolt, firstly, an inner sleeve 20 and a bolt 1 of the composite bolt are sleeved and fixed, and an outer sleeve 10 and a nut 2 of the composite bolt are sleeved and fixed; then, the inner sleeve 20 and the outer sleeve 10 are combined through a clutch assembly, the inner sleeve 20 and the outer sleeve 10 are driven by a driving source to rotate simultaneously, the inner sleeve 20 screws the bolt 1, and the outer sleeve 10 screws the nut 2; after the inner sleeve 20 drives the bolt 1 to be screwed in place, the inner sleeve 20 is separated from the outer sleeve 10 through the clutch assembly, the outer sleeve 10 is driven by the driving source to continue rotating, and the outer sleeve 10 is used for continuing screwing the nut 2 in place.

According to the quick screwing device for the composite bolt, the clutch assembly is arranged, so that the inner sleeve 20 can rotate and stand still, the sleeves of different types do not need to be disassembled and replaced in the process of fastening the composite bolt, two screwing devices are not needed, the cost is effectively reduced, the composite bolt can be quickly fastened, and the fastening efficiency is high.

The clutch assembly is arranged inside the outer sleeve 10 and comprises a first clutch block 31, a second clutch block 32, a clutch spring 33, a spring fixing piece 35 and a transmission shaft 36, wherein the first clutch block 31, the second clutch block 32, the clutch spring 33 and the spring fixing piece 35 are all sleeved on the periphery of the transmission shaft 36, the first clutch block 31, the second clutch block 32, the clutch spring 33 and the spring fixing piece 35 are sequentially distributed along the axial direction of the transmission shaft 36, the driving source is connected with the first clutch block 31, the first clutch block 31 is connected with the outer sleeve 10, a first bulge 311 is arranged on the end surface of the first clutch block 31 close to the second clutch block 32, a second bulge 321 is arranged on the end surface of the second clutch block 32 close to the first clutch block 31, the side surface of the first bulge 311 and the side surface of the second bulge 321 can be mutually abutted and matched, and the side surfaces of the first bulge 311 and the second bulge 321 are inclined surfaces, the second clutch block 32 can move in a direction away from the first clutch block 31 under the guidance of the inclined surface, the clutch spring 33 is compressed and arranged between the second clutch block 32 and the spring fixing piece 35, the spring fixing piece 35 is fixedly connected with the transmission shaft 36, and the transmission shaft 36 is connected with the inner sleeve 20.

The first clutch block 31 and the second clutch block 32 can be separated and combined to combine and separate the inner sleeve 20 and the outer sleeve 10, and the principle that the first clutch block 31 and the second clutch block 32 can be separated and combined is as follows: initially, the driving source drives the first clutch block 31 to rotate, the second protrusion 321 of the second clutch block 32 is always abutted against the end surface of the first clutch block 31 under the action of the elastic force of the clutch spring 33, and when the first clutch block 31 rotates, the first protrusion 311 on the end surface acts on the second protrusion 321 on the second clutch block 32, so as to drive the second clutch block 32 to rotate together (i.e. the first clutch block 31 and the second clutch block 32 are in a combined state); after the inner sleeve 20 drives the bolt to be screwed in place, since the inner sleeve 20 stops rotating, the outer sleeve 10 continues to rotate under the driving of the driving source, the torque of the driving source is generally set to be slightly larger than the torque of the clutch spring 33, so that the outer sleeve 10 can overcome the torque of the clutch spring 33 to enable the first protrusion 311 to pass over the second protrusion 321, and thus the outer sleeve 10 continues to rotate (i.e. the first clutch block 31 and the second clutch block 32 are in a separated state), it can be understood that the rotation of the outer sleeve 10 is a jumping rotation at this time. The clutch assembly is simple in structure and easy to realize.

Preferably, the first clutch block 31 is provided with a plurality of first protrusions 311 distributed circumferentially, the second clutch block 32 is provided with a plurality of second protrusions 321 distributed circumferentially, and the first protrusions 311 correspond to the second protrusions 321 one by one. With the above arrangement, the first clutch block 31 and the second clutch block 32 can be more stably coupled and decoupled. In the present embodiment, fig. 5 and fig. 6 show the case that the first protrusion 311 and the second protrusion 321 are four, but of course, the number of the first protrusion 311 and the second protrusion 321 may be set according to the requirement, and is not limited to this.

Preferably, referring to fig. 5 and 6, the first protrusion 311 and the second protrusion 321 are each trapezoidal in cross section, and a small end of the first protrusion 311 is disposed toward the second clutch block 32 and a small end of the second protrusion 321 is disposed toward the first clutch block 31. Through the arrangement, the structures of the first protrusions 311 and the second protrusions 321 are more reasonable, and the forward rotation and the reverse rotation of the first clutch block 31 can be simultaneously realized.

Preferably, balls are disposed between the first clutch block 31 and the transmission shaft 36 to prevent the first clutch block 31 from generating large resistance and heat due to friction with the transmission shaft 36 when rotating. Balls are also provided between the inner sleeve 20 and the outer sleeve 10 to prevent friction between the inner sleeve 20 and the outer sleeve 10 from generating resistance and heat.

Preferably, a transmission link 40 is connected to the first clutch block 31, and the transmission link 40 is used for connecting with a driving source. Through setting up drive link 40, be convenient for with the driving source be connected, the driving source generally is the air gun, and the air gun is prior art, and no longer describes here. Further preferably, a clamping groove 41 is circumferentially formed in the outer peripheral surface of the transmission connecting rod 40, and the clamping groove 41 is used for being clamped with the driving source, so that the driving source and the transmission connecting rod 40 are not easy to fall off.

Preferably, a spring washer 34 is provided between the clutch spring 33 and the spring fixing member 35 to prevent the clutch spring 33 from slipping. It is further preferable that one of the spring washer 34 and the spring holder 35 is provided with a groove, and the other is provided with a projection that fits the groove, so as to prevent the spring washer 34 from slipping.

In this embodiment, the outer sleeve 10 includes a first sleeve portion 11 and a second sleeve portion 12, the first sleeve portion 11 having a smaller diameter than the second sleeve portion 12, the inner sleeve 20 being located within the first sleeve portion 11, and the clutch assembly being located within the second sleeve portion 12. Through the arrangement, the whole structure is more reasonable, and the connecting surface of the first sleeve part 11 and the second sleeve part 12 can also play a role in limiting the spring fixing piece 35.

The working principle of the quick screwing device for the composite bolt provided by the invention is as follows:

sleeving and fixing an inner sleeve 20 and a bolt 1 of the composite bolt, and sleeving and fixing an outer sleeve 10 and a nut 2 of the composite bolt;

the driving source outputs power, the first clutch block 31 rotates, the first protrusion 311 acts on the second protrusion 321, the second clutch block 32 rotates along with the first clutch block 31, the first clutch block 31 drives the outer sleeve 10 to rotate, the outer sleeve 10 screws the nut 2, meanwhile, the second clutch block 32 drives the inner sleeve 20 to rotate through the clutch spring 33, the spring fixing piece 35 and the transmission shaft 36, and the inner sleeve 20 screws the bolt 1;

after the inner sleeve 20 drives the bolt 1 to be screwed in place, the inner sleeve 20 stops rotating, at the same time, the driving source outputs power, the first clutch block 31 continues to rotate under the driving of the driving source, and the first protrusion 311 passes over the second protrusion 321 under the driving of the driving source, so that the first clutch block 31 realizes jumping rotation, the first clutch block 31 drives the outer sleeve 10 to continue rotating, and the outer sleeve 10 continues to screw the nut 2 in place.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A quick screwing device for a composite bolt, characterized in that it comprises an inner sleeve (20), an outer sleeve (10) and a clutch assembly, wherein the inner sleeve (20) is arranged on the outer sleeve ( 10) inside, the inner sleeve (20) can be sleeved and fixed with the bolt (1) of the composite bolt, and the outer sleeve (10) can be sleeved and fixed with the nut (2) of the composite bolt , the outer sleeve (10) is drivingly connected with the driving source, and the clutch assembly can realize the combination and separation of the inner sleeve (20) and the outer sleeve (10).

2 . The rapid screwing device for composite bolts according to claim 1 , wherein the clutch assembly is arranged inside the outer sleeve ( 10 ), and the clutch assembly comprises a first clutch block ( 31 ). 3 . , the second clutch block (32), the clutch spring (33), the spring fixing member (35) and the transmission shaft (36), the first clutch block (31), the second clutch block (32), the Both the clutch spring (33) and the spring fixing member (35) are sleeved on the outer periphery of the transmission shaft (36), the drive source is connected with the first clutch block (31), and the first clutch block (31) is connected to the outer sleeve (10), a first protrusion (311) is provided on the end surface of the first clutch block (31) close to the second clutch block (32), and the second clutch block (31) is A second protrusion (321) is provided on the end surface of the clutch block (32) close to the first clutch block (31), and the side surface of the first protrusion (311) is in contact with the second protrusion (321). The side surfaces can abut and cooperate with each other, and the side surfaces of the first protrusion (311) and the second protrusion (321) are both inclined surfaces, and the second clutch block (32) can be guided by the inclined surfaces. Moving away from the first clutch block (31), the clutch spring (33) is compressed and arranged between the second clutch block (32) and the spring fixing member (35), and the spring is fixed A piece (35) is fixedly connected with the transmission shaft (36), and the transmission shaft (36) is connected with the inner sleeve (20).

3. The rapid screwing device for composite bolts according to claim 2, characterized in that, the first clutch block (31) is provided with a plurality of the first protrusions (311) distributed in a circumference, the The second clutch block (32) is provided with a plurality of the second protrusions (321) distributed around the circumference, and the first protrusions (311) are in one-to-one correspondence with the second protrusions (321).

4 . The rapid screwing device for composite bolts according to claim 2 , wherein the cross sections of the first protrusion ( 311 ) and the second protrusion ( 321 ) are both trapezoidal, and the first protrusion ( 311 ) and the second protrusion ( 321 ) are both trapezoidal in shape. The small end of a protrusion (311) is disposed toward the second clutch block (32), and the small end of the second protrusion (321) is disposed toward the first clutch block (31).

5. The device for rapidly twisting composite bolts according to claim 2, characterized in that a transmission link (40) is connected to the first clutch block (31), and the transmission link (40) is used for connected to the drive source.

6 . The rapid screwing device for composite bolts according to claim 5 , wherein the outer peripheral surface of the transmission link ( 40 ) is provided with a clamping groove ( 41 ) in the circumferential direction, and the clamping groove ( 41 ) is used for to be connected with the drive source.

7 . The rapid screwing device for composite bolts according to claim 2 , wherein a spring washer ( 34 ) is arranged between the clutch spring ( 33 ) and the spring fixing member ( 35 ). 8 .

8 . The rapid screwing device for composite bolts according to claim 2 , wherein balls are provided between the first clutch block ( 31 ) and the transmission shaft ( 36 ). 9 .

9 . The rapid screwing device for composite bolts according to claim 1 , wherein balls are arranged between the inner sleeve ( 20 ) and the outer sleeve ( 10 ). 10 .

10 . The rapid screwing device for composite bolts according to claim 1 , wherein the outer sleeve ( 10 ) comprises a first sleeve part ( 11 ) and a second sleeve part ( 12 ), the The diameter of the first sleeve part (11) is smaller than the diameter of the second sleeve part (12), the inner sleeve (20) is located in the first sleeve part (11), and the clutch assembly is located in the inside the second sleeve portion (12).