High-load-bearing anti-oil-leakage thrust wheel

Abstract

The utility model relates to the technical field of thrust wheels, in particular to a high-load-bearing oil leakage prevention thrust wheel which comprises a thrust wheel shell and a main shaft arranged in the thrust wheel shell, a bearing set is arranged between the outer wall of the main shaft and the inner wall of the thrust wheel shell, the end of the main shaft is connected with a side cover in a meshed mode, and a bearing positioning block is arranged on the outer wall of the main shaft. A gland is movably clamped on the outer wall of the bearing positioning block, the outer wall of the gland is connected with the inner wall of the thrust wheel shell in a meshed mode, and when the thrust wheel moves in an inclined mode or bears high pressure, lateral inclination force or pressure is exerted on the gland, so that the bearing positioning block is kept meshed with the main shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of idler wheels, in particular to a high-load anti-oil-leakage idler wheel. Background Art

[0002] The idler wheel is an important chassis part of a crawler machine. Its main function is to bear the structural parts, that is, the idler wheel is used to support the gravity of the machine. The idler wheel rolls on the crawler chain link or the crawler guide plate, enabling the crawler to move forward along the idler wheel. At the same time, it can also play a role in clamping the crawler and preventing the crawler from slipping out laterally.

[0003] The existing idler wheel usually consists of an idler wheel housing for installing the crawler and a main shaft, and side covers are arranged at both ends of the main shaft. A bearing is arranged between the inner wall of the idler wheel housing and the outer wall of the main shaft, enabling the idler wheel housing to rotate relative to the main shaft. The side covers are used for installing the idler wheel, which can effectively support and guide the crawler, and the installation and fixation are relatively convenient.

[0004] Although the above-mentioned existing technology can solve the corresponding technical problems, there are still certain defects: the side cover and the main shaft of the existing idler wheel are connected by threads, and there are often some gaps between the side cover and the main shaft connected by threads due to the meshing degree of the threads and the screw teeth. If the crawler machine runs on an inclined plane or the load-bearing weight of the crawler machine is large, it will cause a high pressure at the meshing position of the threads and the screw teeth, making the screw teeth prone to wear during use. After a period of use, oil leakage and other phenomena will occur, and the service life is relatively short. Content of the Utility Model

[0005] The purpose of the utility model is to provide a high-load anti-oil-leakage idler wheel with strong compressive capacity and not easy to leak oil in view of the defects and deficiencies of the existing technology.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a high-load anti-oil-leakage idler wheel, including an idler wheel housing and a main shaft arranged inside the idler wheel housing. A bearing group is arranged between the outer wall of the main shaft and the inner wall of the idler wheel housing. The end of the main shaft is meshed and connected with a side cover. A bearing positioning block is arranged on the outer wall of the main shaft. A gland is movably clamped on the outer wall of the bearing positioning block. The outer wall of the gland is meshed and connected with the inner wall of the idler wheel housing. When the idler wheel tilts or is subjected to high pressure, the side force or pressure is applied to the gland, so that the bearing positioning block keeps meshing with the main shaft.

[0007] Further improvement is: a sealing component is arranged between the bearing positioning block and the gland.

[0008] Further improvement is: the sealing component is a Gleason ring.

[0009] Further improvement: A first sealing ring is provided between the outer wall edge of the gland and the inner wall of the carrier wheel housing.

[0010] Further improvement: A second sealing ring is provided between the outer wall of the main shaft and the inner wall of the bearing positioning block.

[0011] Further improvement: A first gasket is provided between the surface of the end of the main shaft and the inner wall of the side cover.

[0012] Further improvement: A second gasket is provided between the end of the side cover and the side wall of the bearing positioning block.

[0013] Further improvement: A reinforcing bump is provided in the middle section of the inner wall of the carrier wheel housing.

[0014] Further improvement: The main shaft is of a hollow shaft structure, and water outlet holes and water inlet holes are provided through the outer wall.

[0015] After adopting the above technical solution, the beneficial effects of the present utility model are as follows: In the present utility model, a bearing positioning block and a gland are provided between the main shaft and the carrier wheel housing, and the bearing positioning block is engaged on the main shaft. Thus, when the carrier wheel is under high pressure or used in a side tilt, the high pressure and the side tilt force will first be applied to the gland, and are dispersed through the gland, thereby maintaining the engagement between the bearing positioning block and the main shaft, and it is not easy to be forced to slide and cause tooth wear phenomenon. It has strong compressive capacity and is not easy to cause oil leakage due to wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the carrier wheel of the present utility model;

[0018] Figure 2 It is a front view cross-sectional structural schematic diagram of the carrier wheel of the present utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the carrier wheel of the present utility model after removing the housing, the side cover and the bearing set.

[0020] Figure 4 It is a front view cross-sectional structural schematic diagram of the carrier wheel of the present utility model after removing the housing, the side cover and the bearing set. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described in conjunction with the accompanying drawings and specific embodiments.

[0022] Referring to Figures 1-4 As shown, the technical solution adopted in this specific embodiment is: a high-load anti-oil leakage idler wheel, which includes an idler wheel housing 1 and a main shaft 3 disposed within the idler wheel housing 1. A bearing group 6 is provided between the outer wall of the main shaft 3 and the inner wall of the idler wheel housing 1. The end of the main shaft 3 is meshed and connected with a side cover 2. A bearing positioning block 5 is provided on the outer wall of the main shaft 3. A gland 4 is movably engaged with the outer wall of the bearing positioning block 5. The outer wall of the gland 4 is meshed and connected with the inner wall of the idler wheel housing 1. When the idler wheel moves obliquely or is subjected to high pressure, the lateral force or pressure is applied to the gland 4, so that the bearing positioning block 5 remains meshed with the main shaft 3. When in use, first, the bearing group 6 is installed on the outer wall of the main shaft 3. The bearing group 6 can be provided with several according to requirements. When two or more are provided, the idler wheel can obtain a higher load-bearing limit. At the same time, if more than two bearing groups 6 are installed, every two bearing groups 6 can be attached and connected in a back-to-back manner. Subsequently, the bearing positioning block 5 is installed on the main shaft 3 along the thread on the outer wall of the main shaft 3, thereby positioning the bearing group 6 to prevent it from detaching from the main shaft 3. Subsequently, the idler wheel housing 1 is installed on the main shaft 3, and its inner wall is fixed to the bearing group 6, and then the bearing group 6 can rotate relative to the main shaft 3 through the bearing group 6. Subsequently, the gland 4 is screwed onto the outer wall of the bearing positioning block 5, so that the thread on the outer wall of the gland 4 is meshed with the thread on the inner wall of the idler wheel housing 1, and then it is installed between the inner wall of the idler wheel housing 1 and the bearing positioning block 5. Finally, the side cover 2 meshed and connected with the thread on the outer wall of the main shaft 3 is screwed into the end of the main shaft 3, and the installation of the idler wheel can be completed. When the idler wheel is used under high pressure or tilting, the high pressure and lateral force will be first applied to the gland 4 and dispersed through the gland 4, thereby keeping the bearing positioning block 5 meshed with the main shaft 3, and it is not easy to generate sliding due to force, thereby causing wear of the screw teeth between the bearing positioning block 5 and the main shaft 3. It has strong compressive ability and is not easy to generate oil leakage due to wear;

[0023] A sealing assembly 7 is provided between the bearing positioning block 5 and the gland 4. The sealing assembly 7 is a Gleason ring, which is beneficial to improving the sealing effect between the bearing positioning block 5 and the gland 4, and it is more difficult to generate oil leakage when subjected to lateral force;

[0024] A first sealing ring 8 is provided between the outer edge of the outer wall of the gland 4 and the inner wall of the idler wheel housing 1, which is beneficial to improving the sealing effect between the outer wall of the gland 4 and the idler wheel housing 1, and it is more difficult to generate oil leakage;

[0025] A second sealing ring 9 is provided between the outer wall of the main shaft 3 and the inner wall of the bearing positioning block 5, which is beneficial to improving the sealing effect between the outer wall of the main shaft 3 and the inner wall of the bearing positioning block 5, and it is more difficult to generate oil leakage;

[0026] A first gasket 41 is provided between the end surface of the main shaft 3 and the inner wall of the side cover 2. This is beneficial when installing the side cover 2. When the main shaft 3 and the side cover 2 squeeze the first gasket 41, it deforms and fills the gap between the main shaft 3 and the side cover 2, making their connection more secure and less likely to become loose.

[0027] A second gasket 42 is provided between the end of the side cover 2 and the side wall of the bearing positioning block 5. This is beneficial after the side cover 2 is fully installed on the main shaft 3. When the end of the side cover 2 squeezes the second gasket 42, it deforms, filling the gap between the bearing positioning block 5 and the side cover 2, making the gap between them smaller. When a side force is generated, the second gasket 42 can be compressed to buffer the side force, making the side force received by the bearing positioning block 5 smaller.

[0028] Reinforcing bumps 11 are provided in the middle section of the inner wall of the idler wheel housing 1, which is beneficial for improving the overall strength of the idler wheel housing 1. Moreover, the outer shape of the idler wheel housing 1 is relatively smooth, which can reduce the force required for forging and flattening, making the processing more convenient.

[0029] The main shaft 3 is of a hollow shaft structure, and water outlet holes and water inlet holes are penetrated through the outer wall. It can be used to connect the water circulation cooling system to further reduce the temperature when the idler wheel is in use, preventing problems such as the product itself heating up and the wheel body's usage efficiency decreasing due to overheating of the idler wheel.

[0030] At the same time, bosses can be provided on the idler wheel housing 1 and the main shaft 3 to further restrict the axial sliding of the bearing group 6 through the bosses, making it better fixed.

[0031] Working principle of the utility model: When the utility model is in use, first, the bearing group 6 is installed on the outer wall of the main shaft 3. The bearing group 6 can be provided with several according to requirements. When two or more are provided, the load-carrying wheel can obtain a higher load-carrying limit. At the same time, when more than two bearing groups 6 are installed, every two bearing groups 6 can be adhesively connected in a back-to-back manner. Subsequently, the bearing positioning block 5 is installed on the main shaft 3 along the thread on the outer wall of the main shaft 3, thereby positioning the bearing group 6 to prevent it from detaching from the main shaft 3. Then, the load-carrying wheel housing 1 is installed on the main shaft 3, and its inner wall is fixed to the bearing group 6, so that the bearing group 6 can rotate relative to the main shaft 3. Then, the gland 4 is screwed onto the outer wall of the bearing positioning block 5, and the thread on the outer wall of the gland 4 is engaged with the thread on the inner wall of the load-carrying wheel housing 1, and then it is installed between the inner wall of the load-carrying wheel housing 1 and the bearing positioning block 5. Finally, the side cover 2 engaged with the thread on the outer wall of the main shaft 3 is screwed onto the end of the main shaft 3, and the installation of the load-carrying wheel can be completed. When the load-carrying wheel is under high pressure or used in a side tilt, the high pressure and side force will first be applied to the gland 4 and dispersed through the gland 4, thereby maintaining the engagement between the bearing positioning block 5 and the main shaft 3, and it is not easy to slide due to force, thus causing the wear of the screw teeth between the bearing positioning block 5 and the main shaft 3. It has strong compressive ability and is not easy to cause oil leakage due to wear.

[0032] What the utility model wants to protect is the structure of the product. The models of each component are not the content protected by the utility model and are also well-known technologies. As long as the components that can achieve the above functions of the utility model on the market can be used as a choice. Therefore, the parameters such as the model of the component are not described in detail in the utility model. The contribution of the utility model lies in the scientific combination of each component.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and descriptions only illustrates the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents. Where the utility model is not described in detail, it is all well-known technology to those skilled in the art.

Claims

1. A high-load-bearing oil-leakage-proof roller, comprising a roller housing (1) and a main shaft (3) arranged in the roller housing (1), a bearing group (6) being arranged between the outer wall of the main shaft (3) and the inner wall of the roller housing (1), and a side cover (2) being meshedly connected to the end of the main shaft (3), characterized in that: The outer wall of the main shaft (3) is provided with a bearing positioning block (5), and the outer wall of the bearing positioning block (5) is movably engaged with a pressure cover (4), and the outer wall of the pressure cover (4) is meshingly connected with the inner wall of the supporting wheel housing (1). When the supporting wheel tilts or is subjected to high pressure, a roll force or pressure is applied to the pressure cover (4), so that the bearing positioning block (5) remains meshing with the main shaft (3).

2. A high load-bearing oil leakage-proof roller according to claim 1, characterized in that: A sealing assembly (7) is provided between the bearing positioning block (5) and the pressure cover (4).

3. The high load-bearing oil leakage-proof roller according to claim 2, characterized in that: The sealing component (7) is a Gray ring.

4. The high load-bearing oil leakage-proof roller according to claim 1, characterized in that: A first sealing ring (8) is provided between the outer wall edge of the gland (4) and the inner wall of the track wheel housing (1).

5. The high load-bearing oil leakage-proof roller according to claim 1, characterized in that: A second sealing ring (9) is provided between the outer wall of the main shaft (3) and the inner wall of the bearing positioning block (5).

6. The high load-bearing oil-leakage-proof roller according to claim 1, characterized in that: A first gasket (41) is provided between the end surface of the main shaft (3) and the inner wall of the side cover (2).

7. A high load-bearing oil leakage-proof roller according to claim 1 or 6, characterized in that: A second gasket (42) is provided between the end of the side cover (2) and the side wall of the bearing positioning block (5).

8. The high load-bearing oil leakage-proof roller according to claim 1, characterized in that: A reinforcing protrusion (11) is provided in the middle section of the inner wall of the track wheel housing (1).

9. The high load-bearing oil-leakage-proof roller according to claim 1, characterized in that: The main shaft (3) is a hollow shaft structure, and a water outlet hole and a water inlet hole are penetrated through the outer wall.

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