Crawler belt tensioning mechanism of bulldozer

Abstract

The utility model relates to the technical field of bulldozers, and discloses a bulldozer crawler belt tensioning mechanism which comprises a base, an installation groove and a tensioning wheel, the bottom of the installation groove is fixedly installed on the top of the base, and the tensioning wheel is installed on the top of the installation groove. By arranging the base, the mounting groove, the tensioning wheel, the damping mechanism, the rotating mechanism, the adjusting mechanism, the fixing mechanism and the auxiliary mechanism, firstly, a fixing rod is pulled, a rotating rod is rotated, the rotating rod drives a first gear to rotate, the first gear drives a second gear to rotate, the second gear drives a lead screw to rotate, and the lead screw drives a lifting rod to ascend and descend through threaded connection; the tensioning wheel is lifted, the tensioning wheel makes contact with the crawler belt, the crawler belt is moved to the designated position through the tensioning wheel, then the fixing rod is loosened, the fixing rod is installed in an inner cavity of the positioning opening, and the problems that in the prior art, a common tensioning mechanism is prone to vibration, damping is not convenient, parts are prone to being damaged, and adjustment is not convenient are solved.

Description

Technical Field

[0001] This utility model belongs to the field of bulldozer technology, and in particular relates to a bulldozer track tensioning mechanism. Background Technology

[0002] A bulldozer is an earthmoving machine capable of excavating, transporting, and dumping soil and rock. It has a wide range of applications in open-pit mines, such as constructing spoil heaps, leveling truck spoil heaps, stockpiling scattered ore, leveling working platforms, and building sites. It is not only used for auxiliary work but also for primary mining operations, such as stripping and mining of placer deposits, traction and propulsion of scrapers and rock plows, and lowering the stripping bench height in non-transportation mining methods in conjunction with other earthmoving machinery.

[0003] Bulldozer tracks need to be tensioned during operation. The problem with the above technology is that in the existing technology, the general tensioning mechanism is prone to vibration, is not easy to dampen, is easy to damage parts, and is not easy to adjust. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a bulldozer track tensioning mechanism that can overcome or at least partially solve the above problems.

[0005] This utility model is implemented as follows: a bulldozer track tensioning mechanism includes a base, a mounting groove, and a tensioning wheel. The mounting groove is fixedly mounted at the bottom of the base, the tensioning wheel is mounted at the top of the mounting groove, a shock-absorbing mechanism is mounted at the top of the base, a rotating mechanism is mounted at the top of the base, an adjusting mechanism is mounted at the top of the base, a fixing mechanism is mounted on the front side of the mounting groove, and an auxiliary mechanism is mounted on the left side of the mounting groove.

[0006] To improve vibration damping of the tensioning wheel, preferably, the vibration damping mechanism includes a mounting plate, a vertical rod, and a damping spring. The surface of the vertical rod is movably mounted on the middle of the bottom mounting plate, and the bottom of the top mounting plate is fixedly mounted on the top of the vertical rod. One end of the damping spring is fixedly mounted on the top of the bottom mounting plate, and the other end is fixedly mounted on the bottom of the top mounting plate. The damping spring is sleeved on the surface of the vertical rod, and the bottom of the tensioning wheel is fixedly mounted on the top of the top mounting plate. Vibration damping of the tensioning wheel can be achieved through the cooperation of the damping spring.

[0007] To improve the rotation of gear two, preferably, the rotating mechanism includes gear one, a rotating rod, and a bearing. The left side of the bearing is fixedly installed on the right side of the mounting groove, the surface of the rotating rod is movably installed on the inner wall of the bearing, the right side of gear one is fixedly installed on the left side of the rotating rod, and the surface of the rotating rod is movably installed in the middle of the mounting groove. The rotating rod can rotate, and the rotating rod drives gear one to rotate, which in turn drives gear two to rotate.

[0008] To improve the movement of the bottom mounting plate, preferably, the adjustment mechanism includes a lead screw, a second gear, and a lifting rod. The bottom of the lead screw is movably connected to the bottom of the mounting groove cavity via a rotating shaft. The middle part of the second gear is fixedly mounted on the surface of the lead screw. The surface of the lifting rod is movably mounted on the inner wall of the mounting groove, and the surface of the lead screw is movably mounted on the middle part of the lifting rod. The surface of the lead screw and the middle part of the lifting rod are connected by a thread. The first gear and the second gear are meshed together. The bottom of the mounting plate is fixedly mounted on the top of the lifting rod. The second gear can rotate, which drives the lead screw to rotate, and the lead screw drives the lifting rod to move, which in turn drives the bottom mounting plate to move.

[0009] To improve the fixation of the lifting rod, preferably, the fixing mechanism includes a fixing ring, a fixing rod, and a fixing spring. The rear side of the fixing ring is fixedly installed on the front side of the mounting groove. The surface of the fixing rod is movably installed on the middle of the fixing ring. One end of the fixing spring is fixedly installed on the front side of the fixing ring, and the other end of the fixing spring is fixedly installed on the front side of the fixing rod. The fixing spring is sleeved on the surface of the fixing rod, and the rear side of the fixing rod is movably installed in the inner cavity of the lifting rod. The lifting rod can be fixed by the fixing rod and the fixing ring working together.

[0010] To improve the limiting of the bottom mounting plate, preferably, the auxiliary mechanism includes an auxiliary rod, an auxiliary plate, and a limiting block. The right side of the auxiliary plate is fixedly installed on the left side of the mounting groove. The top of the auxiliary rod is fixedly installed on the bottom of the bottom mounting plate. The surface of the auxiliary rod is movably installed in the middle of the auxiliary plate. The top of the limiting block is fixedly installed on the bottom of the auxiliary rod. It can be installed on the auxiliary rod through the bottom mounting plate. The auxiliary rod is installed on the auxiliary plate, thereby limiting the bottom mounting plate.

[0011] To improve the adjustability of the lifting rod, preferably, the front side of the lifting rod is provided with multiple positioning holes, and the rear side of the fixing rod is movably installed in the inner cavity of the positioning hole. The lifting rod can be adjusted by cooperating with the positioning hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model, by setting up a base, mounting groove, tensioning wheel, shock absorption mechanism, rotating mechanism, adjusting mechanism, fixing mechanism, and auxiliary mechanism, firstly pulls the fixing rod, rotates the rotating rod, the rotating rod drives gear one to rotate, gear one drives gear two to rotate, gear two drives the lead screw to rotate, the lead screw drives the lifting rod to rise and fall through the threaded connection, the tensioning wheel rises and falls, the tensioning wheel contacts the track, the tensioning wheel moves the track to the designated position, and then the fixing rod is released. The fixing rod is installed in the inner cavity of the positioning port. This solves the problems of existing technology, where general tensioning mechanisms are prone to vibration, are not easy to absorb shock, are easy to damage parts, and are not easy to adjust. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided in an embodiment of the present utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the auxiliary mechanism and shock absorption mechanism provided in this embodiment of the utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the rotating mechanism and adjusting mechanism provided in this embodiment of the utility model;

[0017] Figure 4 This is a partially enlarged three-dimensional structural diagram of point A provided in an embodiment of this utility model.

[0018] In the diagram: 1. Base; 2. Mounting slot; 3. Tensioning wheel; 4. Shock absorption mechanism; 401. Mounting plate; 402. Vertical rod; 403. Shock absorption spring; 5. Rotation mechanism; 501. Gear 1; 502. Rotating rod; 503. Bearing; 6. Adjustment mechanism; 601. Lead screw; 602. Gear 2; 603. Lifting rod; 7. Fixing mechanism; 701. Fixing ring; 702. Fixing rod; 703. Fixing spring; 8. Auxiliary mechanism; 801. Auxiliary rod; 802. Auxiliary plate; 803. Limiting block; 9. Positioning port. Detailed Implementation

[0019] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0020] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] like Figures 1 to 4As shown in the figure, a bulldozer track tensioning mechanism provided in this embodiment includes a base 1, a mounting groove 2, and a tensioning wheel 3. The bottom of the mounting groove 2 is fixedly mounted on the top of the base 1, and the tensioning wheel 3 is mounted on the top of the mounting groove 2. A shock-absorbing mechanism 4, a rotating mechanism 5, and an adjusting mechanism 6 are mounted on the top of the base 1. A fixing mechanism 7 is mounted on the front side of the mounting groove 2, and an auxiliary mechanism 8 is mounted on the left side of the mounting groove 2. To improve the shock absorption of the tensioning wheel 3, the shock-absorbing mechanism 4 includes a mounting plate 401, a vertical rod 402, and a shock-absorbing spring 403. The surface of the vertical rod 402 is movably mounted on the middle of the bottom mounting plate 401, and the bottom of the top mounting plate 401 is fixedly mounted on the top of the vertical rod 402. One end of the shock-absorbing spring 403 is fixedly installed on the top of the bottom mounting plate 401, and the other end of the shock-absorbing spring 403 is fixedly installed on the bottom of the top mounting plate 401. The shock-absorbing spring 403 is sleeved on the surface of the vertical rod 402. The bottom of the tension wheel 3 is fixedly installed on the top of the top mounting plate 401. The shock-absorbing spring 403 can be used to dampen the tension wheel 3. In order to improve the rotation of the gear 602, the rotating mechanism 5 includes a gear 501, a rotating rod 502, and a bearing 503. The left side of the bearing 503 is fixedly installed on the right side of the mounting groove 2, and the surface of the rotating rod 502 is movably installed on the inner wall of the bearing 503. The right side of the gear 501 is fixedly installed on the left side of the rotating rod 502, and the surface of the rotating rod 502 is movably installed on the top of the mounting plate 401. The middle of the mounting groove 2 can be rotated by a rotating rod 502. The rotating rod 502 drives gear one 501 to rotate, and gear one 501 drives gear two 602 to rotate. To improve the movement of the bottom mounting plate 401, the adjusting mechanism 6 includes a lead screw 601, gear two 602, and a lifting rod 603. The bottom of the lead screw 601 is movably connected to the bottom of the inner cavity of the mounting groove 2 via a rotating shaft. The middle part of gear two 602 is fixedly installed on the surface of the lead screw 601. The surface of the lifting rod 603 is movably installed on the inner wall of the mounting groove 2, and the surface of the lead screw 601 is movably installed on the middle part of the lifting rod 603. The surface of the lead screw 601 and the middle part of the lifting rod 603 are connected by threads. Gear one 501 and gear two 602 are meshed together. The bottom mounting plate 401... The bottom of mounting plate 1 is fixedly installed on the top of the lifting rod 603. It can be rotated by gear 2 602. Gear 2 602 drives screw 601 to rotate, screw 601 drives the lifting rod 603 to move, and the lifting rod 603 drives the bottom mounting plate 401 to move. In order to improve the fixation of the lifting rod 603, the fixing mechanism 7 includes a fixing ring 701, a fixing rod 702 and a fixing spring 703. The rear side of the fixing ring 701 is fixedly installed on the front side of the mounting groove 2. The surface of the fixing rod 702 is movably installed on the middle part of the fixing ring 701. One end of the fixing spring 703 is fixedly installed on the front side of the fixing ring 701, and the other end of the fixing spring 703 is fixedly installed on the front side of the fixing rod 702. The fixing spring 703 is sleeved on the surface of the fixing rod 702.The rear side of the fixing rod 702 is movably installed in the inner cavity of the lifting rod 603. It can be installed on the lifting rod 603 through the fixing rod 702. The lifting rod 603 is fixed by the cooperation of the fixing rod 702 and the fixing ring 701. In order to improve the limiting of the bottom mounting plate 401, the auxiliary mechanism 8 includes an auxiliary rod 801, an auxiliary plate 802 and a limiting block 803. The right side of the auxiliary plate 802 is fixedly installed on the left side of the mounting groove 2, and the top of the auxiliary rod 801 is fixedly installed on the bottom of the bottom mounting plate 401. The surface of the auxiliary rod 801 is movable. Installed in the middle of the auxiliary plate 802, the top of the limiting block 803 is fixedly installed on the bottom of the auxiliary rod 801. It can be mounted on the auxiliary rod 801 via the bottom mounting plate 401, and the auxiliary rod 801 is mounted on the auxiliary plate 802, thus limiting the bottom mounting plate 401. To improve the adjustment of the lifting rod 603, multiple positioning holes 9 are provided on the front side of the lifting rod 603. The rear side of the fixing rod 702 is movably installed in the inner cavity of the positioning hole 9. The lifting rod 603 can be adjusted by the cooperation of the fixing rod 702 with the positioning hole 9.

[0022] The working principle of this utility model:

[0023] In use, first pull the fixed rod 702, then rotate the rotating rod 502. The rotating rod 502 drives the gear 1 501 to rotate, the gear 1 501 drives the gear 2 602 to rotate, the gear 2 602 drives the lead screw 601 to rotate, the lead screw 601 drives the lifting rod 603 to move through the threaded connection, the lifting rod 603 drives the bottom mounting plate 401 to move, the bottom mounting plate 401 drives the shock absorber spring 403 to move, the shock absorber spring 403 drives the top mounting plate 401 to move, the top mounting plate 401 drives the tension wheel 3 to move, the tension wheel 3 contacts the track, and the tension wheel 3 drives the track to move to the designated position.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can exercise their rights without departing from the scope of the present utility model.

Claims

1. A bulldozer track tensioning mechanism comprising a base (1), a mounting groove (2) and a tensioning wheel (3), characterized in that: The bottom of the mounting groove (2) is fixedly installed on the top of the base (1), the tensioning wheel (3) is installed on the top of the mounting groove (2), the top of the base (1) is provided with a damping mechanism (4), the top of the base (1) is provided with a rotating mechanism (5), the top of the base (1) is provided with an adjusting mechanism (6), the front side of the mounting groove (2) is provided with a fixing mechanism (7), and the left side of the mounting groove (2) is provided with an auxiliary mechanism (8).

2. A track tensioning mechanism for a bulldozer as defined in claim 1 wherein: The damping mechanism (4) comprises a mounting plate (401), a vertical rod (402) and a damping spring (403), the surface of the vertical rod (402) is movably installed in the middle of the bottom mounting plate (401), the bottom of the top mounting plate (401) is fixedly installed on the top of the vertical rod (402), one end of the damping spring (403) is fixedly installed on the top of the bottom mounting plate (401), the other end of the damping spring (403) is fixedly installed on the bottom of the top mounting plate (401), and the damping spring (403) is sleeved on the surface of the vertical rod (402). The bottom of the tensioning wheel (3) is fixedly installed on the top of the top mounting plate (401).

3. A track tensioning mechanism for a bulldozer as defined in claim 2 wherein: The rotating mechanism (5) comprises a gear one (501), a rotating rod (502) and a bearing (503), the left side of the bearing (503) is fixedly installed on the right side of the mounting groove (2), the surface of the rotating rod (502) is movably installed on the inner wall of the bearing (503), and the right side of the gear one (501) is fixedly installed on the left side of the rotating rod (502). The surface of the rotating rod (502) is movably installed in the middle of the mounting groove (2).

4. A track tensioning mechanism for a bulldozer as defined in claim 3 wherein: The adjusting mechanism (6) comprises a lead screw (601), a gear two (602) and a lifting rod (603), the bottom of the lead screw (601) is movably connected with the bottom of the inner cavity of the mounting groove (2) through a rotating shaft, the middle of the gear two (602) is fixedly installed on the surface of the lead screw (601), the surface of the lifting rod (603) is movably installed on the inner wall of the mounting groove (2), the surface of the lead screw (601) is movably installed in the middle of the lifting rod (603), the surface of the lead screw (601) is threadedly connected with the middle of the lifting rod (603), the gear one (501) is connected with the gear two (602) through meshing, and the bottom of the mounting plate (401) is fixedly installed on the top of the lifting rod (603).

5. A track tensioning mechanism for a bulldozer as defined in claim 4 wherein: The fixing mechanism (7) comprises a fixing ring (701), a fixing rod (702) and a fixing spring (703), the rear side of the fixing ring (701) is fixedly installed on the front side of the mounting groove (2), the surface of the fixing rod (702) is movably installed in the middle of the fixing ring (701), one end of the fixing spring (703) is fixedly installed on the front side of the fixing ring (701), the other end of the fixing spring (703) is fixedly installed on the front side of the fixing rod (702), the fixing spring (703) is sleeved on the surface of the fixing rod (702), and the rear side of the fixing rod (702) is movably installed in the inner cavity of the lifting rod (603).

6. A track tensioning mechanism for a bulldozer as set forth in claim 2, characterized in that: The auxiliary mechanism (8) comprises an auxiliary rod (801), an auxiliary plate (802) and a limiting block (803), the right side of the auxiliary plate (802) is fixedly installed on the left side of the installation groove (2), the top of the auxiliary rod (801) is fixedly installed on the bottom of the bottom installation plate (401), the surface of the auxiliary rod (801) is movably installed on the middle part of the auxiliary plate (802), and the top of the limiting block (803) is fixedly installed on the bottom of the auxiliary rod (801).

7. A bulldozer track tensioning mechanism as defined in claim 5 wherein: The front side of the lifting rod (603) is provided with a plurality of positioning openings (9), and the rear side of the fixing rod (702) is movably installed in the inner cavity of the positioning opening (9).

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