CN216468144U

CN216468144U - Novel track caterpillar link of easily assembling

Info

Publication number: CN216468144U
Application number: CN202123262607.1U
Authority: CN
Inventors: 文海清; 张敏; 秦贞清
Original assignee: Jining Ningrun Wenzheng Forging Co ltd
Current assignee: Jining Ningrun Wenzheng Forging Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-05-10
Anticipated expiration: 2031-12-23

Abstract

The application discloses a novel caterpillar track section easy to assemble, which comprises a caterpillar track section body and a connecting pin shaft; the caterpillar track section body comprises two caterpillar track sections and a pin shaft sleeve; the two caterpillar track sections are symmetrically provided with a first pin shaft hole and a second pin shaft hole, the pin shaft sleeves are matched with the first pin shaft holes and connected between the two caterpillar track sections, and connecting holes are formed through the first pin shaft holes, the second pin shaft holes and inner holes of the pin shaft sleeves; the connecting pin shaft is matched with the connecting hole and comprises a first pin shaft and a second pin shaft, wherein the diameter of the first end of the first pin shaft and the diameter of the second end of the second pin shaft along the axial direction are larger than the aperture of the connecting hole, the diameter of the second end of the first pin shaft and the diameter of the second end of the second pin shaft are smaller than the aperture of the connecting hole, the first pin shaft is gradually in inclined transition from the first end to the second end, and the second pin shaft is matched with the first pin shaft, so that the first pin shaft and the second pin shaft can be fixed to the two caterpillar track section bodies through relative embedding of the two ends of the connecting hole.

Description

Novel track caterpillar link of easily assembling

Technical Field

The utility model relates to a caterpillar track section of a tractor equipment technical field especially relates to a novel caterpillar track section of a tractor of easily assembling.

Background

In the prior art, when assembling two adjacent caterpillar link bodies, in order to ensure that the two caterpillar link bodies have a clearance of relative rotation and ensure that a stronger connection relation exists between the two adjacent caterpillar link bodies, under a general condition, a pin shaft for connecting the two caterpillar link bodies is in clearance fit with the small end of the caterpillar link body and is in interference fit with the large end of the caterpillar link body, so that the caterpillar link body can rotate relative to the small end of the other caterpillar link body through the large end and the pin shaft. However, when the pin needs to be disassembled, the pin shaft is often required to be pressed out of the two caterpillar track section bodies by means of a pin pressing machine, so that the labor intensity is high, time and labor are wasted, and the working efficiency is low.

In addition, engineering machines such as excavators, bulldozers and the like equipped with the crawler are mostly field work, and under the condition that no pin pressing machine exists, technical engineers usually take out the pin shaft through a heating mode such as baking, and this mode often causes the pin shaft hole to become big, and subsequent assembly precision becomes low, reduces assembly quality, is difficult to carry out lasting work.

In addition, the pin shaft is directly taken out in a pin shaft smashing mode, so that the labor is wasted, the pin shaft and the caterpillar track joint are easy to damage, the equipment cost is increased, and the construction period is delayed.

SUMMERY OF THE UTILITY MODEL

An advantage of the utility model is that a novel track caterpillar link of easily assembling is provided, wherein will connect the round pin axle split to first round pin axle and second round pin axle, and first round pin axle and second round pin axle all are the little form of the big one end of one end, can effectively fix two adjacent caterpillar link bodies after both combine, and when unpacing apart, both can be easier take out tip end from the connecting hole respectively to be convenient for assembly and dismantlement between the caterpillar link body.

An advantage of the utility model is that a novel track caterpillar link of easily assembling is provided, wherein can effectively fasten first round pin axle and second round pin axle through the fastener to effectively improve the joint strength between two caterpillar link bodies, prolong the life of caterpillar link.

An advantage of the utility model is that a novel track caterpillar link of easily assembling is provided, wherein still is provided with lock nut at the tip of fastener, can further strengthen the joint strength between two caterpillar link bodies.

In order to achieve the utility model discloses above at least one advantage, the utility model provides a novel track caterpillar link of easily assembling, include:

the caterpillar track section comprises a caterpillar track section body, wherein the caterpillar track section body comprises two caterpillar track sections and a pin shaft sleeve, the two caterpillar track sections are provided with a small end and a large end which are opposite, a first pin shaft hole and a second pin shaft hole are symmetrically arranged at the small end and the large end respectively, the pin shaft sleeve is matched with the first pin shaft hole and is connected between the two caterpillar track sections, and a connecting hole is formed by the first pin shaft hole, the second pin shaft hole and an inner hole of the pin shaft sleeve on the two adjacent caterpillar track section bodies during assembly; and

the connecting pin shaft is matched with the connecting hole and comprises a first pin shaft and a second pin shaft, wherein the first pin shaft and the second pin shaft are provided with a first end and a second end which are opposite along the axial direction, the shaft diameter of the first end is larger than the hole diameter of the connecting hole, the shaft diameter of the second end is smaller than the hole diameter of the connecting hole, the first pin shaft is gradually obliquely transited from the first end to the second end, and the second pin shaft is matched with the first pin shaft, so that the first pin shaft and the second pin shaft can be fixed to the two caterpillar track section bodies through the relative embedding of the two ends of the connecting hole.

According to the utility model discloses an embodiment, first round pin axle first end with be the plane transition between the second end.

According to the utility model discloses an embodiment, first round pin axle first end with for the cambered surface transition between the second end, wherein the radian of cambered surface transition form in the radial direction of first round pin axle, wherein radially be with the axial vertically direction of first round pin axle.

According to the utility model discloses an embodiment, first round pin axle is implemented for the toper cylinder, just first round pin axle by first end extremely the diameter of axle of second end reduces gradually, the middle part of second round pin axle is provided with and is suitable for holding the cooperation chamber of first round pin axle.

According to the utility model discloses an embodiment, the novel track caterpillar link of easily assembling still includes the fastener, the fastener by detachably connect in first round pin axle with between the second round pin axle.

According to an embodiment of the present invention, the fastener is implemented as a fastening screw, the fastener is rotatably penetrated through the first pin or the second pin, and is screwed to the second pin or the end of the first pin.

According to the utility model discloses an embodiment, the fastener protrusion first round pin axle or the tip of second round pin axle is provided with lock nut.

According to an embodiment of the present invention, the fastener is implemented as a fastening screw, and the fastener is rotatably penetrated through the first pin shaft and the second pin shaft at the same time.

According to the utility model discloses an embodiment, the fastener protrusion first round pin axle with the both ends of second round pin axle all are provided with locknut.

These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description.

Drawings

FIG. 1 shows a schematic cross-sectional view of a novel track link that is easy to assemble according to a preferred embodiment of the present application.

Fig. 2 shows a schematic cross-sectional view of a new track link that is easy to assemble in another preferred embodiment of the present application.

Fig. 3 shows a schematic structural diagram of a first pin of the present application.

Reference numerals: 90-caterpillar track section body, 10 caterpillar track sections, 100-connecting holes, 11-small ends, 101-first pin shaft holes, 102-second pin shaft holes, 12-large ends, 20-pin shaft sleeves, 30-connecting pin shafts, 31-first pin shafts, 311-first ends, 312-second ends, 313-cambered surface structures, 32-second pin shafts, 40-fastening pieces, 41-locknuts and 42-locknuts.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the disclosure of the specification, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships that are based on those shown in the drawings, which are merely for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and, therefore, the above-described terms should not be construed as limiting the invention.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Referring to fig. 1, a novel easy-to-assemble track link according to a preferred embodiment of the present invention, which includes a link body 90 and a connecting pin 30, will be described in detail below. The caterpillar track section body 90 comprises two caterpillar track sections 10 and a pin shaft sleeve 20, wherein two caterpillar track sections 10 are respectively provided with a small end 11 and a large end 12 which are opposite, a first pin shaft hole 101 and a second pin shaft hole 102 are respectively and symmetrically arranged at the small end 11 and the large end 12, the pin shaft sleeve 20 is matched with the first pin shaft hole 101 and is connected between the two caterpillar track sections 10, and when the caterpillar track section body is assembled, a connecting hole 100 is formed through the first pin shaft hole 101, the second pin shaft hole 102 and an inner hole of the pin shaft sleeve 20 on the two adjacent caterpillar track section bodies 90, namely, the first pin shaft hole 101, the second pin shaft hole 102 and the inner hole of the pin shaft sleeve 20 are coaxially arranged, the connecting pin shaft 30 is in clearance fit with the first pin shaft hole 101 and the inner hole of the pin shaft sleeve 20, and the connecting pin shaft 30 is in interference fit with the second pin shaft hole 102, after the two adjacent caterpillar link bodies 90 are assembled successfully through the connecting pin shaft 30, the connecting pin shaft 30 can rotate together with the large end 12 of one caterpillar link body 90 relative to the small end 11 of the other caterpillar link body 90, and the connecting pin shaft 30 and the second pin shaft hole 102 are in interference fit, so that the two adjacent caterpillar link bodies 90 can be tightly connected, and transmission on a caterpillar is realized.

The connecting pin 30 is matched with the connecting hole 100 and comprises a first pin 31 and a second pin 32, wherein the first pin 31 and the second pin 32 are provided with a first end 311 and a second end 312 which are opposite to each other along the axial direction, the shaft diameter of the first end 311 is larger than the hole diameter of the connecting hole 100, the shaft diameter of the second end 312 is smaller than the hole diameter of the connecting hole 100, the first pin 31 is gradually inclined from the first end 311 to the second end 312, and meanwhile, the second pin 32 is matched with the first pin 31, so that the first pin 31 and the second pin 32 can be fixed to the two caterpillar link bodies 90 by the opposite embedding of the two ends of the connecting hole 100.

That is, although the connecting pin 30 and the second pin hole 102 are interference-fitted, thereby forming an effective connection relationship between two adjacent track link bodies 90, but the present application provides a novel track link that is easy to assemble by splitting the connecting pin 30 into the first pin 31 and the second pin 32, when assembling, the first pin 31 and the second pin 32 can be more easily inserted into the connecting hole 100 through the second end 312 with a smaller shaft diameter, so that the assembling connection can be quickly completed, and when disassembling, because the first pin 31 and the second pin 32 are separately located in the second pin hole 102 without a large contact area, compared with the connection relationship between the conventional pin and the pin hole, the split type first pin 31 and the second pin 32 can be more easily taken out from the connection hole 100. Therefore, the caterpillar track section provided by the application is easier to assemble on the basis of ensuring the connection relation.

As a preferred embodiment, the first end 311 and the second end 312 of the first pin 31 are in plane transition, that is, the connection surface of the first pin 31 and the second pin 32 opposite to each other is a plane, and the opposite surface is a normal cylindrical surface, that is, after the first pin 31 and the second pin 32 are engaged, a complete pin similar to the pin in the prior art can also be formed.

As another preferred embodiment, referring to fig. 3, an arc transition is formed between the first end 311 and the second end 312 of the first pin 31, wherein an arc of the arc transition is formed in a radial direction of the first pin 311, wherein the radial direction is a direction perpendicular to an axial direction of the first pin 311. That is, between the first pin 311 and the second pin 312, one of them has a concave arc structure 313, and the other has a convex arc structure matching with it. After the first pin 31 and the second pin 32 are matched, a complete pin similar to the prior art can be formed.

As a third preferred embodiment, the first pin 31 is implemented as a tapered cylinder, and the diameter of the first pin 31 decreases from the first end 311 to the second end 312, and the middle of the second pin 312 is provided with a matching cavity adapted to receive the first pin 311. Through the cooperation of the first pin 31 and the second pin 32, a complete pin similar to that in the prior art can be formed, but can be pulled out relatively outwards when being disassembled, and is easier to disassemble.

Preferably, the novel track link easy to assemble further comprises a fastener 40, wherein the fastener 40 is detachably connected between the first pin 31 and the second pin 32 for reinforcing the connection relationship between the first pin 31 and the second pin 32, thereby increasing the connection strength between two adjacent track link bodies 90.

More preferably, the fastener 40 is implemented as a fastening screw. The fastener 40 is rotatably inserted through the first pin 31 or the second pin 32 and is screwed to an end of the second pin 32 or the first pin 31. In this way, after the fastening member 40 penetrates through the first pin 31 and then is screwed on the second pin 32, or after the fastening member penetrates through the second pin 32 and then is screwed on the first pin 31, the connection between the first pin 31 and the second pin 32 can be realized, so that the application of the connection pin 30 is closer to an integrated pin, and thus the connection pin has better structural connection strength, but the difference lies in that after the fastening member is disassembled, the first pin 31 and the second pin 32 which form the connection pin 30 can be relatively and easily pulled out at two ends of the connection hole 100, the connection pin 30 and the track link 10 are not easily damaged, and the assembly is easy.

In addition, in order to further enhance the connection strength between the first pin 31 and the second pin 32, it is further preferable that, with reference to fig. 1, an end of the fastener 40 protruding from the first pin 31 or the second pin 32 is provided with a locknut 41 to prevent the fastener 40 from loosening. The fastening member 40 is preferably implemented as a stud screw or a stud bolt, one end of which is adapted to be screwed on the end of the first pin 31 or the second pin 32, and the other end of which is adapted to be fitted with the locknut 41.

As another preferred embodiment, the fastening member 40 is implemented as a fastening screw, and the fastening member 40 is rotatably inserted through both the first pin 31 and the second pin 32. As such, although the fastener 40 needs to be rotated more deeply, a more secure connection is provided, so that the connecting pin 30 can more securely connect two adjacent track link bodies 90.

More preferably, referring to fig. 2, the fastener 40 is provided with a locknut 42 at both ends protruding from the first pin 31 and the second pin 32, so as to prevent the fastener 40 from loosening at both ends of the fastener 40.

When the locknuts 42 are provided at both ends of the fastening member 40, the fastening member 40 is preferably implemented as a stud screw or a stud bolt.

It should be noted that the terms "first, second and third" in the present invention are used for descriptive purposes only, do not denote any order, are not to be construed as indicating or implying any relative importance, and are to be interpreted as names.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The advantages of the present invention are already complete and effectively realized. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims

1. A novel track link of easy assembly, comprising:

the caterpillar track section comprises a caterpillar track section body, wherein the caterpillar track section body comprises two caterpillar track sections and a pin shaft sleeve, the two caterpillar track sections are respectively provided with a small end and a large end which are opposite, a first pin shaft hole and a second pin shaft hole are symmetrically arranged at the small end and the large end respectively, the pin shaft sleeve is matched with the first pin shaft hole and is connected between the two caterpillar track sections, and a connecting hole is formed by the first pin shaft hole, the second pin shaft hole and an inner hole of the pin shaft sleeve on the two adjacent caterpillar track section bodies during assembly; and

2. A novel track link assembly as defined in claim 1 wherein said first end and said second end of said first pin define a planar transition therebetween.

3. A novel track link for ease of assembly as set forth in claim 1 wherein said first end and said second end of said first pin are in a cambered transition, wherein said cambered transition has a curvature formed in a radial direction of said first pin, wherein said radial direction is perpendicular to an axial direction of said first pin.

4. A novel track link for easy assembly as defined in claim 1 wherein said first pin is embodied as a tapered cylinder and the diameter of said first pin decreases from said first end to said second end, and the middle of said second pin is provided with a mating cavity adapted to receive said first pin.

5. A novel track link assembly as claimed in any one of claims 2 to 4 which is easy to assemble and which further includes a fastener which is releasably connected between the first and second pins.

6. A novel track link for easy assembly as claimed in claim 5 wherein said fastener is embodied as a fastening screw, said fastener being rotatably threaded through said first or second pin and threadably engaging an end of said second or first pin.

7. A novel track link assembly for ease of assembly as set forth in claim 6 wherein said fastener is provided with a locknut projecting from the end of said first or second pin.

8. The novel track link assembly of claim 5 wherein said fastener is implemented as a fastening screw, said fastener being rotatably threaded through both said first pin and said second pin.

9. A novel track link assembly that is easy to assemble as claimed in claim 8 wherein the fastener is provided with a locknut protruding beyond both ends of the first and second pins.