A tensioner for a tracked vehicle

Abstract

The utility model discloses a kind of tensioning devices of tracked vehicle, it is related to tracked vehicle tensioning field, including support frame, further including conveyor wheel rotatably connected in the bottom of support frame by connecting rod, the both ends of support frame are rotatably installed with the tensioning wheel that tensioning is carried out to track, further including setting in support frame inside, and extend to support frame outside, for the transmission mechanism of quick release tensioning wheel, tracked tensioning.The utility model is through setting transmission mechanism, when needing to quickly release tensioning wheel and the tensioning of track, can be released the rotation limit of runner by giving runner, movable sleeve external tension and make runner, make special-shaped wheel movable by the transmission rod of movable sleeve inner cavity sleeve joint of runner, make special-shaped wheel no longer resist in the one end of abutment plate, release the limit of tensioning device, so that tensioning device can be along the cavity of support frame movable, to release the tensioning of track, it is convenient to quickly take down track.

Description

Technical Field

[0001] This utility model relates to the field of tracked vehicle tensioning, specifically a tracked vehicle tensioning device. Background Technology

[0002] In the existing technology, in order to adapt to the complex terrain of the fields, the traditional tire structure has a large ground pressure between the tire and the ground when walking in the fields, which results in poor load-bearing capacity of the grain transport vehicle. In addition, wheeled grain transport vehicles are prone to denting or slipping when running in the fields. Therefore, tracked grain transport vehicles have emerged.

[0003] In the prior art, tracked vehicles generally use a tensioning device in the fixed frame to tension the tensioning wheel. The tensioning device is usually a hydraulic cylinder and a motor screw, which makes the track as a whole trapezoidal. When the track needs to be cleaned and maintained, the tensioning device needs to be used multiple times to adjust the position of the tensioning wheel each time, which cannot quickly release the tension of the track for removal and maintenance. Based on this, the present invention proposes a tensioning device for tracked vehicles. Utility Model Content

[0004] The purpose of this utility model is to provide a tensioning device for tracked vehicles in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tensioning device for a tracked vehicle, comprising a support frame, and a conveyor wheel rotatably connected to the bottom of the support frame via a connecting rod. Tensioning wheels for tensioning the track are rotatably mounted at both ends of the support frame. The device also includes a transmission mechanism disposed inside the support frame and extending to the outside of the support frame for quickly releasing the tensioning wheels and the track tension.

[0006] The transmission mechanism includes a limiting unit, a transmission unit, and a tensioning device that provides thrust for tensioning the tensioning wheel;

[0007] The transmission unit is used to provide power for the movement of the limiting unit;

[0008] The limiting unit is used to limit the position of the tensioning device.

[0009] As a further improvement of this utility model: the limiting unit includes a stop plate and a shaped wheel;

[0010] The abutment plate is axially slidably installed in the inner cavity of the support frame, and the end of the abutment plate is fixedly connected to the end of the tensioning device. The abutment plate is used to limit the position of the tensioning device. The output end of the tensioning device extends to the outside of the support frame and is rotatably connected to the tensioning wheel through a connecting frame.

[0011] The irregularly shaped wheel is fixed to the bottom outer wall of the transmission rod, and the arc-shaped protrusion of the irregularly shaped wheel contacts the end of the abutment plate. The irregularly shaped wheel is used to limit the axial movement of the abutment plate. The center of the irregularly shaped wheel is a disc, and two arc-shaped protrusions are symmetrically formed on the outer periphery of the disc of the irregularly shaped wheel.

[0012] As a further embodiment of this utility model: the transmission unit includes a rotating wheel, a limiting rod, a movable sleeve, a spring, and a transmission rod;

[0013] The rotating wheel is wrapped around the outside of the movable sleeve and is fixed to the outer wall of the movable sleeve by connecting rods that are equidistantly distributed around its inner circumference. A limiting rod extending to the inner wall of the support frame is fixed to the bottom of the rotating wheel. The limiting rod is used to limit the rotation of the rotating wheel.

[0014] The movable sleeve is vertically slidably sleeved on the outer wall of the transmission rod with a protruding rod. The outer wall of the movable sleeve is surrounded by a spring that engages with the inner wall of the support frame and the outer wall of the bottom disc of the movable sleeve. The spring is used to provide the movable sleeve with a compressive force in one direction. The transmission rod is rotatably mounted on the inner wall of the support frame and is used to synchronously drive the irregular wheel to rotate.

[0015] As a further improvement of this utility model, the number of the abutment plates is set to two, and the two abutment plates are symmetrically distributed in the inner cavity of the support frame with the axis of the irregular wheel as the center.

[0016] As a further improvement of this utility model, the contact end between the irregularly shaped wheel and the outer wall of the abutment plate has an arc-shaped structure.

[0017] As a further improvement of this utility model, the outer wall of the support frame is formed with a limiting groove for the insertion of a limiting rod.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] By setting up a transmission mechanism, when it is necessary to quickly release the tension of the tension wheel and the track, the rotation limit of the wheel can be released by applying an outward pulling force to the wheel and the movable sleeve. The wheel then drives the irregular wheel to move through the transmission rod connected to the inner cavity of the movable sleeve, so that the irregular wheel no longer abuts against one end of the plate. This releases the limit of the tensioning device, allowing the tensioning device to move along the inner cavity of the support frame, thereby releasing the tension on the track and facilitating the quick removal of the track. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the internal structure of the support frame of this utility model;

[0022] Figure 3This is a schematic diagram of the transmission mechanism of this utility model.

[0023] In the diagram: 1. Support frame; 2. Conveyor wheel; 3. Tensioner wheel; 4. Track; 5. Transmission mechanism; 501. Tensioning device; 502. Support plate; 503. Rotary wheel; 504. Limiting rod; 505. Movable sleeve; 506. Spring; 507. Transmission rod; 508. Irregular wheel. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-3 In this embodiment of the utility model, a tensioning device for a tracked vehicle includes a support frame 1, a conveyor wheel 2 rotatably connected to the bottom of the support frame 1 via a connecting rod, tensioning wheels 3 for tensioning the track 4 are rotatably installed at both ends of the support frame 1, and a transmission mechanism 5 is provided inside the support frame 1 and extends to the outside of the support frame 1 for quickly releasing the tensioning wheels 3 and the track 4.

[0026] The transmission mechanism 5 includes a limiting unit, a transmission unit, and a tensioning device 501 that provides thrust for tensioning the tensioning wheel 3;

[0027] The transmission unit is used to provide power for the movement of the limit unit;

[0028] The limiting unit is used to limit the position of the tensioning device 501;

[0029] The limiting unit includes a stop plate 502 and a shaped wheel 508;

[0030] The abutment plate 502 is axially slidably installed in the inner cavity of the support frame 1, and the end of the abutment plate 502 is fixedly connected to the end of the tensioning device 501. The abutment plate 502 is used to limit the position of the tensioning device 501. The output end of the tensioning device 501 extends to the outside of the support frame 1 and is rotatably connected to the tensioning wheel 3 through the connecting frame.

[0031] The irregular wheel 508 is fixed to the bottom outer wall of the transmission rod 507, and the arc-shaped protrusion of the irregular wheel 508 contacts the end of the abutment plate 502. The irregular wheel 508 is used to limit the axial movement of the abutment plate 502. The center of the irregular wheel 508 is a disc, and two arc-shaped protrusions are symmetrically formed on the outer periphery of the disc of the irregular wheel 508.

[0032] The transmission unit includes a rotating wheel 503, a limiting rod 504, a movable sleeve 505, a spring 506, and a transmission rod 507;

[0033] The rotating wheel 503 surrounds the outer side of the movable sleeve 505 and is fixed to the outer wall of the movable sleeve 505 by connecting rods that are equidistantly distributed around its inner circumference. A limiting rod 504 extending to the inner wall of the support frame 1 is fixed to the bottom of the rotating wheel 503. The limiting rod 504 is used to limit the rotation of the rotating wheel 503.

[0034] The movable sleeve 505 is vertically slidably sleeved on the outer wall of the transmission rod 507 with a protruding rod. The outer wall of the movable sleeve 505 is surrounded by a spring 506 that engages with the inner wall of the support frame 1 and the outer wall of the bottom disc of the movable sleeve 505. The spring 506 is used to provide the movable sleeve 505 with a compressive force in one direction. The transmission rod 507 is rotatably mounted on the inner wall of the support frame 1. The transmission rod 507 is used to synchronously drive the irregular wheel 508 to rotate.

[0035] In this embodiment: when it is necessary to quickly disassemble the track 4, by applying an outward pulling force to the rotating wheel 503, the rotating wheel 503 drives the movable sleeve 505 to move outward along the outer wall of the spring 506. At the same time, the spring 506, which is engaged with the end disc of the movable sleeve 505, will also be subjected to compressive force until the limiting rod 504 moves out of the limiting groove on the outer wall of the support frame 1. At this time, the rotating wheel 503 can be given rotational force, and the rotating wheel 503 synchronously drives the movable sleeve 505 to rotate. The protruding rod on the outer wall of the transmission rod 507 transmits the rotation of the movable sleeve 505 to the transmission rod 507 through the protruding rod, causing the transmission rod 507 and the shaped wheel 508 to rotate synchronously. The rotating shaped wheel 508 no longer abuts against the end of the abutment plate 502, thereby quickly releasing the contact between the tensioning device 501 and the abutment plate 502, separating the tensioning wheel 3 connected to the end of the tensioning device 501 from the track 4, releasing the tension on the track 4, facilitating quick maintenance and cleaning of the track 4, and further improving work efficiency.

[0036] Please refer to this carefully. Figures 1-3 There are two abutment plates 502. The two abutment plates 502 are symmetrically distributed in the inner cavity of the support frame 1 with the axis of the irregular wheel 508 as the center. The contact end between the irregular wheel 508 and the outer wall of the abutment plate 502 has an arc structure. The outer wall of the support frame 1 is formed with a limiting groove for the insertion of the limiting rod 504.

[0037] In this embodiment: With this structure, during the rotation of the irregular wheel 508, the arc-shaped protrusion of the irregular wheel 508 can simultaneously move out of the ends of the two abutment plates 502, thereby simultaneously releasing the compression limit of the two abutment plates 502, and achieving the simultaneous release of the tension of the two tensioning wheels 3.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tensioning device for a tracked vehicle, comprising a support frame (1), characterized in that, It also includes a conveyor wheel (2) rotatably connected to the bottom of the support frame (1) via a connecting rod. Both ends of the support frame (1) are rotatably equipped with tensioning wheels (3) for tensioning the track (4). It also includes a transmission mechanism (5) disposed inside the support frame (1) and extending to the outside of the support frame (1) for quickly releasing the tensioning wheels (3) and the track (4). The transmission mechanism (5) includes a limiting unit, a transmission unit, and a tensioning device (501) that provides thrust for tensioning the tensioning wheel (3). The transmission unit is used to provide power for the movement of the limiting unit; The limiting unit is used to limit the position of the tensioning device (501); The limiting unit includes a stop plate (502) and a shaped wheel (508); The abutment plate (502) is axially slidably installed in the inner cavity of the support frame (1), and the end of the abutment plate (502) is fixedly connected to the end of the tensioning device (501). The abutment plate (502) is used to limit the position of the tensioning device (501). The output end of the tensioning device (501) extends to the outside of the support frame (1) and is rotatably connected to the tensioning wheel (3) through the connecting frame. The irregular wheel (508) is fixed to the bottom outer wall of the transmission rod (507), and the arc-shaped protrusion of the irregular wheel (508) contacts the end of the abutment plate (502). The irregular wheel (508) is used to limit the axial movement of the abutment plate (502). The center of the irregular wheel (508) is a disc, and two arc-shaped protrusions are symmetrically formed on the outer periphery of the disc of the irregular wheel (508). The transmission unit includes a rotating wheel (503), a limiting rod (504), a movable sleeve (505), a spring (506), and a transmission rod (507); The rotating wheel (503) surrounds the outside of the movable sleeve (505) and is fixed to the outer wall of the movable sleeve (505) by connecting rods that are equidistantly distributed around its inner circumference. A limiting rod (504) extending to the inner wall of the support frame (1) is fixed to the bottom of the rotating wheel (503). The limiting rod (504) is used to limit the rotation of the rotating wheel (503). The movable sleeve (505) is vertically slidably sleeved on the outer wall of the transmission rod (507) with a protruding rod. The outer wall of the movable sleeve (505) is surrounded by a spring (506) that engages with the inner wall of the support frame (1) and the outer wall of the bottom disc of the movable sleeve (505). The spring (506) is used to give the movable sleeve (505) a compressive force in one direction. The transmission rod (507) is rotatably mounted on the inner wall of the support frame (1). The transmission rod (507) is used to synchronously drive the shaped wheel (508) to rotate.

2. The tensioning device for a tracked vehicle according to claim 1, characterized in that, The number of the abutment plate (502) is set to two, and the two abutment plates (502) are symmetrically distributed in the inner cavity of the support frame (1) with the axis of the shaped wheel (508) as the center.

3. The tensioning device for a tracked vehicle according to claim 1, characterized in that, The contact end between the irregular wheel (508) and the outer wall of the abutment plate (502) has an arc-shaped structure.

4. The tensioning device for a tracked vehicle according to claim 1, characterized in that, The outer wall of the support frame (1) is formed with a limiting groove for the insertion of the limiting rod (504).

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