Crawler-type caterpillar track section high-wear-resistance pin bush

Abstract

The utility model relates to a crawler-type caterpillar track section high-abrasion-resistant pin bush, which belongs to the technical field of crawler accessories and comprises a left caterpillar track section, a right caterpillar track section and a pin bush body, the left caterpillar track section and the right caterpillar track section are connected through the pin bush body, and the pin bush body comprises a central screw rod and an outer cylinder in threaded connection with the central screw rod. A movable inner cylinder is installed between the center screw and the outer cylinder, rotating shafts are installed at one end of the center screw and one end of the outer cylinder, the two rotating shafts are movably connected with a left caterpillar track section and a right caterpillar track section respectively, and a limiting adjusting device is installed between the center screw and the inner cylinder. The inner cylinder rotates relatively between the center screw and the outer cylinder, so that the irregular sliding friction relation between the track and the center screw is reduced, irregular abrasion is avoided through normalization and regularization of the irregular accompanying movement of the pin sleeve, and the abrasion resistance of the pin sleeve in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crawler track accessories, in particular to a crawler type chain track section height wear-resistant pin sleeve. Background Art

[0002] The pin bushing is a hardened steel insert with a reinforced pin hole. The track consists of track shoes and track pins. The track pins connect the track shoes to form a track link. There are holes at both ends of the track shoes to mesh with the driving wheel, and there are induction teeth in the middle to regulate the track.

[0003] However, the pin sleeves currently in use all have the problem of being easily damaged due to great wear. This is because there is a sliding gap between the traditional pin sleeve and the track joint. As a result, the sliding friction between the track and the pin sleeve will drive the pin sleeve to make irregular movements during the movement of the track, which is mainly determined by the actual terrain and the actual movement mode. In summary, after the traditional pin sleeve is installed, it will show wear of different degrees and angles as the track moves, which reduces the overall wear resistance of the pin sleeve. Therefore, it is necessary to design a crawler chain track section high wear-resistant pin sleeve. Utility Model Content

[0004] The utility model aims to solve the above technical problems and provides a crawler type chain track section height wear-resistant pin sleeve.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0006] A crawler track link high wear-resistant pin sleeve, comprising a left track link, a right track link and a pin sleeve body, wherein the left track link and the right track link are connected through the pin sleeve body;

[0007] The pin sleeve body comprises a central screw and an outer cylinder threadedly connected to the central screw, a movable inner cylinder is installed between the central screw and the outer cylinder, and a rotating shaft is installed at one end of the central screw and the outer cylinder, and the two rotating shafts are respectively movably connected to the left chain track section and the right chain track section;

[0008] A limit adjustment device is installed between the central screw and the inner cylinder.

[0009] Preferably, the left chain track segment and the right chain track segment have the same structure, and the left chain track segment and the right chain track segment are symmetrically arranged.

[0010] Preferably, the left chain track segment and the right chain track segment are both provided with a connecting hole for cooperating with the rotating shaft.

[0011] Preferably, the limit adjustment device includes a fixing nut threadedly connected to the outer side of the central screw, a limit disk is installed on one side of the central screw, and a limit convex groove used to cooperate with the limit disk and the fixing nut is installed in the inner cylinder.

[0012] Preferably, a threaded hole for cooperating with the central screw is provided on the outer cylinder.

[0013] Preferably, a mounting hole for fitting a fixing nut is provided on the right chain rail section.

[0014] Preferably, both ends of the rotating shaft are respectively provided with protective covers.

[0015] Preferably, tracks are bolted onto the left and right track links.

[0016] After adopting the above structure, the utility model has the following advantages:

[0017] 1. The inner cylinder of the utility model rotates relatively between the center screw and the outer cylinder, thereby reducing the irregular sliding friction relationship between the track and the center screw. The irregular accompanying movement of the pin sleeve is normalized and regularized to avoid irregular wear, thereby improving the wear resistance of the pin sleeve during use.

[0018] 2. The utility model can adjust the length of the pin sleeve body, and fix it by rotating the fixing nut on the central screw rod against the outer cylinder. The position between the left chain track section and the right chain track section can be adjusted according to the time situation to adapt to different types of crawlers.

[0019] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the pin sleeve body of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the inner cylinder of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the outer cylinder of the utility model;

[0025] Figure 5It is a cross-sectional view of the pin sleeve body of the utility model.

[0026] As shown in the figure: 1. Left track link; 2. Right track link; 201. Mounting hole; 3. Pin sleeve body; 301. Center screw; 302. Outer cylinder; 303. Rotating shaft; 304. Inner cylinder; 4. Limit adjustment device; 401. Fixing nut; 402. Limit plate; 403. Limit convex groove; 404. Threaded hole; 5. Connecting hole; 6. Protective cover; 7. Track. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] The utility model is further described in detail below in conjunction with the full text.

[0030] Combined with Figure 1-Figure 5As shown, a crawler track segment high wear-resistant pin sleeve comprises a left track segment 1, a right track segment 2 and a pin sleeve body 3, wherein the left track segment 1 and the right track segment 2 are connected through the pin sleeve body 3; the pin sleeve body 3 comprises a central screw 301 and an outer cylinder 302 threadedly connected to the central screw 301, a movable inner cylinder 304 is installed between the central screw 301 and the outer cylinder 302, a rotating shaft 303 is installed at one end of the central screw 301 and the outer cylinder 302, the two rotating shafts 303 are respectively movably connected to the left track segment 1 and the right track segment 2, and a connecting hole 5 for matching the rotating shaft 303 is provided on the left track segment 1 and the right track segment 2, and the left track segment 1 and the right track segment 2 are connected. The structure is consistent, the left track segment 1 and the right track segment 2 are symmetrically arranged, and the two ends of the rotating shaft 303 are respectively covered with protective covers 6. The left track segment 1 and the right track segment 2 are bolted with tracks 7. Specifically, the two left track segments 1 and the right track segment 2 are rotatably connected through the pin sleeve body 3, and the rotating shaft 303 is located in the connecting hole 5 and can rotate in the connecting hole 5. The inner cylinder 304 rotates relatively between the center screw 301 and the outer cylinder 302, thereby reducing the irregular sliding friction relationship between the track and the center screw 301. The irregular accompanying movement of the pin sleeve is normalized and regularized to avoid irregular wear, thereby improving the wear resistance of the pin sleeve when in use.

[0031] When the utility model is implemented, Figure 1-Figure 5 As shown, a limit adjustment device 4 is installed between the central screw 301 and the inner cylinder 304, and the limit adjustment device 4 includes a fixing nut 401 threadedly connected to the outer side of the central screw 301, a limit plate 402 is installed on one side of the central screw 301, and a limit convex groove 403 used to cooperate with the limit plate 402 and the fixing nut 401 is installed in the inner cylinder 304. The central screw 301 rotates and moves on the outer cylinder 302, driving the limit plate 402 to rotate and move in the limit convex groove 403 of the inner cylinder 304, pushing the inner cylinder 304 to move between the central screw 301 and the inner cylinder 304, adjusting the length of the pin sleeve body 3, and fixing the outer cylinder 302 by rotating the fixing nut 401 on the central screw 301.

[0032] When the utility model is implemented, Figure 2 and Figure 4 As shown, a threaded hole 404 for cooperating with the center screw 301 is provided on the outer cylinder 302. The center screw 301 rotates in the threaded hole 404, and the rotation direction is perpendicular to the movement direction, which is not easy to cause the center screw 301 to loosen. Then, the fixing nut 401 rotates on the outside of the center screw 301 to press against the outer cylinder 302, thereby completing the fixed connection between the outer cylinder 302 and the center screw 301.

[0033] The right chain track section 2 is provided with a mounting hole 201 for mounting with a fixing nut 401. The mounting hole 201 is connected to the connecting hole 5, and the fixing nut 401 can be placed in the mounting hole 201 during installation.

[0034] Embodiment 1:

[0035] The two left track segments 1 and the right track segment 2 are rotatably connected through the pin sleeve body 3, and the track 7 is installed on the left track segment 1 and the right track segment 2 through bolts. The rotating shaft 303 is located in the connecting hole 5 and rotates. When the track 7 moves, the left track segment 1 and the right track segment 2 are driven to rotate on the rotating shaft 303 of the pin sleeve body 3 through the sliding friction force, and the inner cylinder 304 rotates relatively between the center screw 301 and the outer cylinder 302, thereby reducing the irregular sliding friction relationship between the track and the center screw 301. The irregular accompanying movement of the pin sleeve is normalized and regularized to avoid irregular wear, thereby improving the wear resistance of the pin sleeve when in use.

[0036] Embodiment 2:

[0037] During installation, the center screw 301 rotates and moves on the outer cylinder 302, driving the limit plate 402 to rotate and move in the limit groove 403 of the inner cylinder 304, pushing the inner cylinder 304 to move between the center screw 301 and the inner cylinder 304, adjusting the length of the pin sleeve body 3, and fixing the outer cylinder 302 by rotating the fixing nut 401 on the center screw 301. The position between the left chain track segment 1 and the right chain track segment 2 can be adjusted according to the time situation to adapt to different types of tracks 7.

[0038] The above describes the utility model and its implementation methods, which is not restrictive. What is shown in the full text is only one of the implementation methods of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. A crawler track link high wear-resistant pin sleeve, comprising a left track link (1), a right track link (2) and a pin sleeve body (3), characterized in that: It comprises a left chain track section (1) and a right chain track section (2) connected via a pin sleeve body (3); The pin sleeve body (3) comprises a central screw (301) and an outer cylinder (302) threadedly connected to the central screw (301); a movable inner cylinder (304) is installed between the central screw (301) and the outer cylinder (302); a rotating shaft (303) is installed at one end of each of the central screw (301) and the outer cylinder (302); the two rotating shafts (303) are movably connected to the left chain track section (1) and the right chain track section (2) respectively; A limit adjustment device (4) is installed between the central screw (301) and the inner cylinder (304).

2. According to claim 1, a crawler type chain track section height wear-resistant pin sleeve, characterized in that: The left chain track section (1) and the right chain track section (2) have the same structure, and the left chain track section (1) and the right chain track section (2) are symmetrically arranged.

3. According to claim 1, a crawler track section height wear-resistant pin sleeve is characterized in that: The left chain track section (1) and the right chain track section (2) are both provided with a communicating hole (5) for use with the rotating shaft (303).

4. According to claim 1, a crawler track link section height wear-resistant pin sleeve is characterized in that: The limit adjustment device (4) comprises a fixing nut (401) threadedly connected to the outer side of the central screw (301), a limit plate (402) is installed on one side of the central screw (301), and a limit convex groove (403) used in conjunction with the limit plate (402) and the fixing nut (401) is installed in the inner cylinder (304).

5. According to claim 4, a crawler track link section height wear-resistant pin sleeve is characterized in that: The outer cylinder (302) is provided with a threaded hole (404) for use with the central screw (301).

6. The crawler track link section wear-resistant pin sleeve according to claim 4, characterized in that: The right chain rail section (2) is provided with a mounting hole (201) for mounting with a fixing nut (401).

7. The crawler track link section wear-resistant pin sleeve according to claim 1, characterized in that: Both ends of the rotating shaft (303) are respectively provided with protective covers (6).

8. The crawler track link section wear-resistant pin sleeve according to claim 1, characterized in that: The left chain track section (1) and the right chain track section (2) are bolted with crawler tracks (7).

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