Self-lubricating wear-resistant track roller

Abstract

The utility model provides a kind of self-lubricating wear-resistant track support wheel, it is related to support wheel technical field, including shaft sleeve, wear ring and flange installed in wear ring side face, the flange side face is provided with mounting bracket, the flange side face is equipped with central shaft, central shaft one end is rotatably connected in mounting bracket side face, the mounting bracket surface is fixed with box body.The self-lubricating wear-resistant track support wheel moves up and down by cam to drive movable plate, so that the lubricating oil in accommodating cavity is discharged regularly through connecting hole and oil outlet, so that the core friction pair (central shaft-shaft sleeve) can be continuously, on-demand oil supply, solve the early failure problem caused by insufficient lubrication, reduce the friction pair wear, heating and jam risk, prolong the life of core component.

Description

Technical Field

[0001] This utility model relates to a wear-resistant track roller, specifically a self-lubricating wear-resistant track roller, belonging to the field of track roller technology. Background Technology

[0002] Tracked fire trucks are key equipment for operations in complex forest terrain, undertaking important tasks such as equipment and material transfer, personnel transport, and forest fire prevention and suppression. Due to the harsh operating environment, vehicles frequently travel through muddy, gravel, and rugged areas, where large amounts of mud, sand, and gravel are easily picked up by the tracks and accumulate on the surface of the track rollers and in the contact area with the tracks. This continuous abrasive wear significantly accelerates the wear of the track rollers, leading to a substantial reduction in their service life, increasing maintenance costs, and seriously affecting the reliable execution of firefighting missions.

[0003] Chinese patent application publication number CN217706020U discloses a wear-resistant support roller for a tracked fire truck, comprising a bushing, wear-resistant rings, flanges, a central shaft, mounting handles, a central pin, threaded holes, fixing plates, and cleaning / lubricating shafts. Wear-resistant rings are respectively provided on the left and right sides of the bushing. The flanges are fixed to the left and right ends of the bushing, and the central shaft is axially installed inside the bushing. Two mounting handles are respectively installed on the left and right ends of the central shaft, and the central pin is installed at the middle of the upper and lower ends of the mounting handles. Four fixing plates are respectively fixed to the inner front and rear sides of the two mounting handles, and two cleaning / lubricating shafts are respectively installed on the inner ends of the fixing plates. This invention solves the problem that various types of mud, sand, and gravel easily adhere to the support roller, causing wear at the contact points with the track, leading to a decrease in service life and affecting its use.

[0004] However, the application fails to provide any lubrication design or measures for the core rotating friction pair inside the track roller. The center shaft and bushing rely solely on a small amount of grease or direct metal contact during initial assembly, which can easily lead to severe wear, overheating, or even jamming due to dry friction or grease depletion.

[0005] Therefore, a self-lubricating wear-resistant track support roller is proposed here. Utility Model Content

[0006] This invention proposes a self-lubricating wear-resistant track roller to solve the problem that existing technologies do not provide any lubrication design or measures for the core rotating friction pair inside the track roller, and the central shaft and bushing rely only on a small amount of grease or direct metal contact during initial assembly, which easily leads to severe wear, overheating or even jamming due to dry friction or depletion of grease.

[0007] This utility model is achieved through the following technical solution: a self-lubricating wear-resistant track support roller, including a bushing, a wear-resistant ring and a flange installed on the side of the wear-resistant ring, a mounting frame is provided on the side of the flange, a central shaft is installed on the side of the flange, one end of the central shaft is rotatably connected to the side of the mounting frame, and a box is fixed on the surface of the mounting frame. The lower surface of the box has a placement groove, the inner wall of the placement groove is fixed with a telescopic rod, the lower end of the telescopic rod is fixed with a movable plate, the surface of the central shaft is fixed with a cam, the lower surface of the movable plate is in contact with the cam, the inside of the box has a receiving cavity, the side of the receiving cavity has a connecting hole, the surface of the movable plate has an oil outlet hole, and the connecting hole and the oil outlet hole are connected.

[0008] Furthermore, the surface of the box is provided with an oil injection hole, and a second spring is sleeved on the surface of the telescopic rod. The two ends of the second spring are respectively fixed to the inner wall of the placement groove and the upper surface of the movable plate, and the side of the movable plate is in close contact with the inner wall of the placement groove.

[0009] Furthermore, a cleaning rod is provided on the side of the wear-resistant ring, and a slider is fixed on the side of the cleaning rod. A groove corresponding to the slider is opened on the side of the mounting bracket. The slider moves inside the groove. The cleaning rod moves on the side of the mounting bracket through the slider and the groove. There are two sets of sliders and grooves, which are symmetrically arranged at both ends of the cleaning rod.

[0010] Furthermore, the mounting bracket has an internal telescopic groove, a support rod is fixed to the inner wall of the telescopic groove, a push rod is sleeved on the surface of the support rod, a stop block is fixed to the end face of the push rod, the stop block passes through the telescopic groove and is set inside the sliding groove, and the lower surface of the stop block is in contact with the upper surface of the slider.

[0011] Furthermore, a lever is fixed to the side of the push rod, and a first spring is sleeved on the surface of the support rod. The two ends of the first spring are respectively fixed to the inner wall of the telescopic groove and the side of the push rod.

[0012] Furthermore, the upper surface of the stop block is provided with an inclined surface, and the side of the mounting bracket is provided with a movable groove corresponding to the lever, and the lever passes through the movable groove.

[0013] This utility model provides a self-lubricating wear-resistant track support roller, which has the following beneficial effects: This self-lubricating wear-resistant track roller moves the movable plate up and down via a cam, thereby allowing the lubricating oil in the housing cavity to be discharged regularly through the connecting hole and the oil outlet hole. This enables continuous and on-demand oil supply to the core friction pair (central shaft-shoulder), solving the problem of early failure caused by insufficient lubrication, reducing the risk of friction pair wear, heat generation and jamming, and extending the life of core components.

[0014] This self-lubricating wear-resistant track support roller uses a lever, push rod, stop block, and slider. When maintenance or special working conditions are required, the lever can be manually moved to overcome the elastic force of the first spring, causing the push rod and stop block to retract, releasing the lock on the slider, and allowing the cleaning rod to slide out along the groove for easy maintenance or replacement. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial cross-sectional structural diagram of the present invention; Figure 3 This utility model Figure 2 Enlarged structural diagram at point A; Figure 4 This utility model Figure 2 Enlarged structural diagram at point B; Figure 5 This is a detailed structural diagram of the cleaning rod and mounting bracket in this utility model.

[0016] Explanation of reference numerals in the attached figures 1. Bushing; 2. Wear ring; 3. Flange; 4. Mounting bracket; 401. Telescopic groove; 402. Slide groove; 403. Support rod; 404. Push rod; 405. Stop block; 406. First spring; 407. Toggle lever; 5. Box body; 501. Oil filling hole; 502. Receiving cavity; 503. Placement slot; 504. Telescopic rod; 505. Movable plate; 506. Second spring; 507. Connecting hole; 508. Oil outlet hole; 6. Cleaning rod; 601. Slider; 7. Central shaft; 8. Cam. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0018] Please see Figures 1-5 The present invention proposes the following implementation scheme: a self-lubricating wear-resistant track support roller, including a bushing 1, a wear-resistant ring 2 and a flange 3 installed on the side of the wear-resistant ring 2. A mounting frame 4 is provided on the side of the flange 3, and a central shaft 7 is installed on the side of the flange 3. One end of the central shaft 7 is rotatably connected to the side of the mounting frame 4, and a box 5 is fixed on the surface of the mounting frame 4.

[0019] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 The lower surface of the box body 5 has a placement groove 503, and a telescopic rod 504 is fixed to the inner wall of the placement groove 503. A movable plate 505 is fixed to the lower end of the telescopic rod 504. A cam 8 is fixed to the surface of the central shaft 7. The lower surface of the movable plate 505 is in contact with the cam 8. The inside of the box body 5 has a receiving cavity 502. A connecting hole 507 is opened on the side of the receiving cavity 502. An oil outlet hole 508 is opened on the surface of the movable plate 505. The connecting hole 507 and the oil outlet hole 508 are connected. An oil injection hole 501 is opened on the surface of the box body 5. A second spring 506 is sleeved on the surface of the telescopic rod 504. The two ends of 506 are respectively fixed to the inner wall of the placement groove 503 and the upper surface of the movable plate 505. The side of the movable plate 505 is in close contact with the inner wall of the placement groove 503. The self-lubricating wear-resistant track support roller drives the movable plate 505 to move up and down through the cam 8, so that the lubricating oil in the receiving cavity 502 is regularly discharged through the connecting hole 507 and the oil outlet hole 508. This enables continuous and on-demand oil supply to the core friction pair (central shaft 7 - bushing 1), solves the problem of early failure caused by insufficient lubrication, reduces the risk of friction pair wear, heat generation and jamming, and extends the life of core components.

[0020] Please refer to this carefully. Figure 2 , Figure 4 and Figure 5 The wear-resistant ring 2 has a cleaning rod 6 on its side, and a slider 601 is fixed to the side of the cleaning rod 6. The mounting bracket 4 has a groove 402 on its side corresponding to the slider 601. The slider 601 moves inside the groove 402. The cleaning rod 6 moves on the side of the mounting bracket 4 through the slider 601 and the groove 402. There are two sets of sliders 601 and grooves 402, which are symmetrically arranged at both ends of the cleaning rod 6. The mounting bracket 4 has a telescopic groove 401 inside, and a support rod 403 is fixed to the inner wall of the telescopic groove 401. A push rod 404 is sleeved on the surface of the support rod 403. A stop block 405 is fixed to the end face of the push rod 404. The stop block 405 passes through the telescopic groove 401 and is located inside the groove 402. The lower surface of the stop block 405 is in contact with the upper surface of the slider 601. A lever 407 is fixed to the side of the 04 support rod 403, and a first spring 406 is sleeved on the surface of the support rod 403. The two ends of the first spring 406 are fixed to the inner wall of the telescopic groove 401 and the side of the push rod 404, respectively. An inclined surface is opened on the upper surface of the stop block 405, and a movable groove corresponding to the lever 407 is opened on the side of the mounting bracket 4. The lever 407 passes through the movable groove. The self-lubricating wear-resistant track support roller is connected by the lever 407, the push rod 404, the stop block 405 and the slider 601. When maintenance is required or special working conditions occur, the lever 407 is manually moved to overcome the elastic force of the first spring 406, which drives the push rod 404 and the stop block 405 to retract, releasing the lock on the slider 601. The cleaning rod 6 can then be slid out along the slide groove 402 for easy maintenance or replacement of the cleaning rod 6.

[0021] When using this utility model: First, place the device in the designated position. Then, the operator aligns the slider 601 on the side of the cleaning rod 6 with the groove 402. Then, press the cleaning rod 6 so that the slider 601 can push the stop 405. Since the upper surface of the stop 405 has an inclined surface, the slider 601 can push the stop 405 to move laterally. When the slider 601 passes the stop 405, under the rebound force of the first spring 406, it can drive the push rod 404 and the stop 405 to move in opposite directions, thereby fixing the cleaning rod 6.

[0022] Then, the staff installs the device in the designated position. When the wear-resistant ring 2 rotates, it drives the flanges 3 at both ends and the central shaft 7 installed on the side of the flanges 3 to rotate, thereby driving the cam 8 fixed on the surface of the central shaft 7 to rotate. The cam 8 drives the movable plate 505 to move up and down. When the connecting hole 507 and the oil outlet hole 508 are connected, the lubricating oil in the receiving cavity 502 can be discharged through the connecting hole 507 and the oil outlet hole 508, thereby lubricating the central shaft 7 below.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-lubricating wear-resistant track support roller, comprising a bushing (1), a wear-resistant ring (2), and a flange (3) mounted on the side of the wear-resistant ring (2), characterized in that: A mounting bracket (4) is provided on the side of the flange (3), and a central shaft (7) is mounted on the side of the flange (3). One end of the central shaft (7) is rotatably connected to the side of the mounting bracket (4), and a box (5) is fixed on the surface of the mounting bracket (4). The lower surface of the box (5) is provided with a placement groove (503), and a telescopic rod (504) is fixed to the inner wall of the placement groove (503). A movable plate (505) is fixed to the lower end of the telescopic rod (504). A cam (8) is fixed to the surface of the central shaft (7). The lower surface of the movable plate (505) is in contact with the cam (8). The inside of the box (5) is provided with a receiving cavity (502). A connecting hole (507) is provided on the side of the receiving cavity (502). An oil outlet hole (508) is provided on the surface of the movable plate (505). The connecting hole (507) and the oil outlet hole (508) are connected.

2. The self-lubricating wear-resistant track support roller according to claim 1, characterized in that: The box body (5) has an oil injection hole (501) on its surface. The telescopic rod (504) is fitted with a second spring (506). The two ends of the second spring (506) are fixed to the inner wall of the placement groove (503) and the upper surface of the movable plate (505), respectively. The side of the movable plate (505) is in close contact with the inner wall of the placement groove (503).

3. The self-lubricating wear-resistant track support roller according to claim 1, characterized in that: The wear-resistant ring (2) is provided with a cleaning rod (6) on its side. A slider (601) is fixed on the side of the cleaning rod (6). The mounting bracket (4) is provided with a groove (402) corresponding to the slider (601) on its side. The slider (601) moves inside the groove (402). The cleaning rod (6) moves on the side of the mounting bracket (4) through the slider (601) and the groove (402). There are two sets of sliders (601) and grooves (402), which are symmetrically arranged at both ends of the cleaning rod (6).

4. The self-lubricating wear-resistant track support roller according to claim 3, characterized in that: The mounting bracket (4) has an internal telescopic groove (401). A support rod (403) is fixed to the inner wall of the telescopic groove (401). A push rod (404) is sleeved on the surface of the support rod (403). A stop block (405) is fixed to the end face of the push rod (404). The stop block (405) passes through the telescopic groove (401) and is located inside the slide groove (402). The lower surface of the stop block (405) is in contact with the upper surface of the slider (601).

5. A self-lubricating wear-resistant track support roller according to claim 4, characterized in that: A lever (407) is fixed to the side of the push rod (404), and a first spring (406) is sleeved on the surface of the support rod (403). The two ends of the first spring (406) are respectively fixed to the inner wall of the telescopic groove (401) and the side of the push rod (404).

6. The self-lubricating wear-resistant track support roller according to claim 5, characterized in that: The upper surface of the stop block (405) is provided with an inclined surface, and the side of the mounting bracket (4) is provided with a movable groove corresponding to the lever (407), and the lever (407) passes through the movable groove.

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