A hydraulic buffer track adjuster device

Abstract

The present invention relates to the technical field of tracked armored vehicles, and specifically discloses a hydraulic buffer track adjuster device. The track adjuster device includes an outer cylinder sleeve, a sliding bearing, an inner cylinder sleeve, a limit nut, a lead screw, and a sleeve. Compared with the existing track adjustment device, the present invention utilizes the compressible nature of the elastomer and adds an elastic element to the device, which effectively solves the problem that the rigid locking element is easily damaged, and greatly improves the reliability of the armored vehicle guide wheel and track adjustment device. It has the advantages of compact structure, simple operation, and reliable operation, and is suitable for most tracked vehicles.

Description

Technical Field

[0001] The invention relates to the technical field of tracked armored vehicles, and specifically discloses a hydraulic buffer track adjuster device. Background Art

[0002] At present, the track adjustment device of armored vehicles is generally used in conjunction with the inducer crank arm. One end of the track adjustment device is fixed to the vehicle body, and the other end is connected to the inducer crank arm. The crank arm shaft is driven to rotate by a hydraulic or mechanical track adjustment device, thereby changing the position of the inducer wheel and achieving the effect of adjusting the tightness of the track.

[0003] Both hydraulic and mechanical track adjustment devices have one common feature, that is, after the adjustment is completed, the track adjuster is rigidly locked. During the driving of the tracked vehicle, the induction wheel will often be impacted and the rigid locking element will be easily damaged.

[0004] Therefore, in order to reduce the impact load on the rigid locking element, it is crucial to design a hydraulic buffer track adjuster device to solve the problem that the rigid locking element is easily damaged. Summary of the invention

[0005] The technical problem solved by the present invention is: according to the extreme working condition characteristics of tracked armored vehicles, a structural solution that meets the product functions and performance is designed to improve the reliability of the equipment.

[0006] The present invention is achieved through the following technical solutions:

[0007] In a first aspect, the present invention provides a hydraulically buffered track adjuster device, comprising an outer cylinder sleeve 2, a sliding bearing 3, an inner cylinder sleeve 6, a limit nut 7, a lead screw 8, and a sleeve 9;

[0008] The outer cylinder sleeve 2 is sleeved on the outer side of the inner cylinder sleeve 6, and an elastic body 4 is injected into the closed cavity formed by the cavity of the outer cylinder sleeve 2 and the periphery of the inner cylinder sleeve 6; the elastic body 4 is a compressible body, which generates a reverse rebound force after compression, driving it to return to its initial volume, and its function is equivalent to a coil spring with high stiffness;

[0009] The outer cylinder sleeve 2 is a cylindrical structure with two circular openings, one large and one small, at both ends, and a fixing device on the outer wall;

[0010] The inner cylinder sleeve 6 has a stepped shaft structure, and two circular rings with different diameters are provided at both ends of the outer surface to match the circular openings at both ends of the outer cylinder sleeve 2; the inner cylinder sleeve 6 has a stepped through hole, a sliding bearing 3 is installed near the small end, and a lead screw 8 is installed at the large end; a limit nut 7 is provided on the inner side of the large end of the inner cylinder sleeve 6 to fix the lead screw 8;

[0011] A terminal end is provided at one end of the screw 8, and a trapezoidal external thread is provided on the outer wall at the other end. The terminal end of the screw 8 passes through the through hole in the inner cylinder sleeve 6; the main body of the sleeve 9 is a hollow cylindrical tube with an open end, and a trapezoidal internal thread matching the screw 8 is provided inside the port at one end, which is connected to the screw 8, and a fixing device is provided at the other end.

[0012] Preferably, the end of the lead screw 8 is an external hexagonal structure.

[0013] Preferably, a groove is provided on the side wall of the small circular hole of the outer cylinder sleeve 2, and the first sealing ring 1 is installed to contact with the outer wall of the inner cylinder sleeve 6 to complete the sealing.

[0014] Preferably, the outer wall of the large circular ring of the inner cylinder sleeve 6 has a groove, and the second sealing ring 5 is installed to contact with the inner wall of the outer cylinder sleeve 2 to complete the sealing.

[0015] Preferably, the outer cylinder sleeve 2 is a cylindrical structure with an outer wall designed with a fixing ear, and is fixed to the vehicle body through a pin.

[0016] Preferably, the fixing device of the sleeve 9 is a fixing ear, which is fixed to the crankshaft 10 of the inducer wheel through a pin.

[0017] Preferably, the elastomer (4) is elastic putty.

[0018] In a second aspect, the present invention provides an application of the track adjuster device described in the first aspect installed on a track.

[0019] Preferably, when in use, one end of the outer cylinder sleeve 2 of the track adjustment device is fixed to the vehicle body, and one end of the sleeve 9 is connected to the inducer crankshaft 10.

[0020] When the track needs to be adjusted, one end of the track adjusting device is fixed to the vehicle body, and the other end is connected to the inducer crank arm shaft 10. The track adjusting device is driven to extend or shorten by rotating the end of the screw 8, thereby rotating the crank arm shaft 10 and changing the position of the inducer to achieve the effect of adjusting the tightness of the track. When the track does not need to be adjusted, the structure has a self-locking function due to the characteristics of the trapezoidal thread.

[0021] When the vehicle is running, the external impact force on the induction wheel will be transmitted to the inner cylinder sleeve 6 through the crankshaft 10, sleeve 9, and screw 8, and the inner cylinder sleeve 6 and the outer cylinder sleeve 2 will be displaced, the length of the track adjustment device will be shortened, and the volume of the closed cavity surrounded by the two will be reduced, compressing the elastic body 4. After the external impact force disappears, due to the reverse rebound force of the elastic body 4, the track adjustment device returns to its original length.

[0022] The beneficial effects of the present invention are:

[0023] Compared with the existing track adjustment device, the present invention utilizes the compressible property of the elastic body and adds an elastic element to the device, effectively solving the problem that the rigid locking element is easily damaged, and greatly improving the reliability of the armored vehicle idler and track adjustment device. It has the advantages of compact structure, simple operation, and reliable operation, and is suitable for most tracked vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of the crawler track adjustment device of the present invention;

[0025] Figure 2 This is an exploded view of the crawler track adjustment device of the present invention;

[0026] Figure 3 This is a schematic diagram of the installation of the crawler track adjustment device described in the present invention. DETAILED DESCRIPTION

[0027] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the following is a further description in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to illustrate the technical effects of the present invention, and are not used to limit the scope of protection of the present invention.

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] Example 1

[0030] A hydraulically buffered crawler adjuster device comprises a first sealing ring 1, an outer cylinder sleeve 2, a sliding bearing 3, an elastic body 4, a second sealing ring 5, an inner cylinder sleeve 6, a limit nut 7, a lead screw 8, and a sleeve 9;

[0031] The outer cylinder sleeve 2 is sleeved on the outer side of the inner cylinder sleeve 6, and an elastic body 4 is injected into the closed cavity formed by the cavity of the outer cylinder sleeve 2 and the periphery of the inner cylinder sleeve 6; the elastic body 4 is a compressible body, which generates a reverse rebound force after compression, driving it to return to its initial volume, and its function is equivalent to a coil spring with high stiffness;

[0032] The outer cylinder sleeve 2 is a cylindrical structure with two circular openings, one large and one small, at both ends. The outer wall is provided with fixing ears and is fixed to the vehicle body through a pin shaft.

[0033] The inner cylinder sleeve 6 has a stepped shaft structure, and two circular rings with different diameters are provided at both ends of the outer surface to match the circular openings at both ends of the outer cylinder sleeve 2; the inner cylinder sleeve 6 has a stepped through hole, a sliding bearing 3 is installed near the small end, and a lead screw 8 is installed at the large end; a limit nut 7 is provided on the inner side of the large end of the inner cylinder sleeve 6 to fix the lead screw 8;

[0034] One end of the lead screw 8 is provided with an external hexagonal structure end, and the outer wall of the other end is provided with a trapezoidal external thread. The end of the lead screw 8 passes through the through hole in the inner cylinder sleeve 6; the main body of the sleeve 9 is a hollow cylindrical tube with an open end, and the inside of the port at one end is provided with a trapezoidal internal thread matching the lead screw 8, which is connected to the lead screw 8, and the other end is provided with a fixing ear, which is fixed to the crankshaft 10 of the inducer through a pin shaft.

[0035] The side wall of the small circular hole of the outer cylinder sleeve 2 is provided with a groove, and the first sealing ring 1 is installed to contact the outer wall of the inner cylinder sleeve 6 to complete the sealing. The outer side wall of the large circular ring of the inner cylinder sleeve 6 is provided with a groove, and the second sealing ring 5 is installed to contact the inner wall of the outer cylinder sleeve 2 to complete the sealing.

[0036] When in use, one end of the outer cylinder sleeve 2 of the track adjustment device is fixed to the vehicle body, and one end of the sleeve 9 is connected to the inducer crank arm shaft 10: when the track needs to be adjusted, one end of the track adjustment device is fixed to the vehicle body, and the other end is connected to the inducer crank arm shaft 10. The track adjustment device is driven to extend or shorten by rotating the end of the screw 8, so that the crank arm shaft 10 rotates, and then the position of the inducer is changed, so as to achieve the effect of adjusting the tightness of the track; when the track does not need to be adjusted, the structure has a self-locking function due to the characteristics of the trapezoidal thread.

[0037] When the vehicle is running, the external impact force on the induction wheel will be transmitted to the inner cylinder sleeve 6 through the crankshaft 10, sleeve 9, and screw 8, and the inner cylinder sleeve 6 and the outer cylinder sleeve 2 will be displaced, the length of the track adjustment device will be shortened, and the volume of the closed cavity surrounded by the two will be reduced, compressing the elastic body 4. After the external impact force disappears, due to the reverse rebound force of the elastic body 4, the track adjustment device returns to its original length.

Claims

1. A hydraulically buffered track adjuster device, characterized in that: It comprises an outer cylinder sleeve (2), a sliding bearing (3), an inner cylinder sleeve (6), a limit nut (7), a lead screw (8), and a sleeve (9); The outer cylinder sleeve (2) is sleeved on the outer side of the inner cylinder sleeve (6), and an elastic body (4) is injected into the closed cavity formed by the cavity of the outer cylinder sleeve (2) and the periphery of the inner cylinder sleeve (6); The outer cylinder sleeve (2) is a cylindrical structure with two circular openings, one large and one small, at both ends, and a fixing device provided on the outer wall; The inner cylinder sleeve (6) has a stepped shaft structure in appearance, and two circular rings of different diameters are provided at both ends of the outer surface to match the circular openings at both ends of the outer cylinder sleeve (2); the inner cylinder sleeve (6) has a stepped through hole inside, a sliding bearing (3) is installed near the small end, and a lead screw (8) is installed at the large end; a limit nut (7) is provided on the inner side surface of the large end of the inner cylinder sleeve (6) to fix the lead screw (8); A terminal is provided at one end of the lead screw (8), and a trapezoidal external thread is provided on the outer wall of the other end. The terminal of the lead screw (8) passes through the through hole in the inner cylinder sleeve (6); the main body of the sleeve (9) is a hollow cylindrical tube with an open end, and a trapezoidal internal thread matching the lead screw (8) is provided inside the port at one end, which is connected to the lead screw (8), and a fixing device is provided at the other end.

2. The hydraulically buffered track adjuster device according to claim 1, characterized in that: The end of the lead screw (8) is an external hexagonal structure.

3. The hydraulically buffered track adjuster device according to claim 1, characterized in that: A groove is provided on the side wall of the small circular hole of the outer cylinder sleeve (2), and a first sealing ring (1) is installed to contact with the outer wall of the inner cylinder sleeve (6) to complete the sealing.

4. The hydraulically buffered track adjuster device according to claim 1, characterized in that: The outer wall of the large circular ring of the inner cylinder sleeve (6) is provided with a groove, and the second sealing ring (5) is installed to contact with the inner wall of the outer cylinder sleeve (2) to complete the sealing.

5. The hydraulically buffered track adjuster device according to claim 1, characterized in that: The outer cylinder sleeve (2) is a cylindrical structure with an outer wall having a fixing ear, which is fixed to the vehicle body via a pin.

6. The hydraulically buffered track adjuster device according to claim 1, characterized in that: The fixing device of the sleeve (9) is a fixing ear, which is fixed on the crankshaft (10) of the inducer wheel through a pin.

7. The hydraulically buffered track adjuster device according to claim 1, characterized in that: The elastic body (4) is elastic cement.

8. Use of the crawler track adjuster device according to any one of claims 1 to 7 installed on a crawler track.

9. Application of the crawler track adjuster device according to claim 8 installed on a crawler track, characterized in that: When in use, one end of the outer cylinder sleeve (2) of the track adjustment device is fixed to the vehicle body, and one end of the sleeve (9) is connected to the induction wheel crankshaft shaft (10).

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