Wear-resistant bearing of walking speed reducer

Abstract

The utility model discloses a wear-resistant bearing of a walking speed reducer, and relates to the technical field of walking speed reducers. The bearing comprises a bearing shell, a bearing body is arranged in the bearing shell, and the top of the bearing body is communicated with a liquid inlet pipe; an oil injection assembly is arranged on the top of the bearing body. Through the arrangement of the oil injection assembly, when the bearing body needs to be overhauled, an external oil pipe is inserted into the oil storage pipe, the sealing plug is pushed, the sealing plug drives the rubber plug to be inserted into the connecting pipe when being pushed, the bottom of the oil storage pipe is kept sealed, and oil is injected into the oil storage pipe at the moment; according to the bearing oil injection device, a worker can conveniently observe and control the amount of injected oil, after oil injection is completed, an external oil pipe is pulled out of an oil storage pipe, a rubber plug is reset under the action of a spring, oil can be injected into a bearing body, the precise oil injection effect is achieved, the situation that the oil injection amount is too small, and bearing abrasion is aggravated is avoided, and the protection effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of travel reducers, in particular to a wear-resistant bearing of a travel reducer. Background Art

[0002] Travel reducers are usually used in engineering and mechanical design for heavy equipment and vehicles, such as excavators, bulldozers, etc. These reducers usually need to withstand high loads and harsh environments, so the selection of bearings is crucial. The bearings usually used in travel reducers can be rolling bearings or sliding bearings. Rolling bearings such as tapered roller bearings or roller bearings are usually used to withstand such high loads.

[0003] The current operating environment of travel reducers is relatively complex, such as high temperature, dust, high humidity and other environments, which requires more frequent lubrication and maintenance of the bearings. When manually adding oil to the bearings, the single injection amount of oil needs to be judged by feel. If too much oil is injected, it is easy to cause waste. If the oil injection is not sufficient, it will aggravate the wear of the bearings.

[0004] To this end, we provide a wear-resistant bearing for a travel reducer to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a wear-resistant bearing for a travel reducer. By setting an oil injection component, the utility model solves the problem that the travel reducer bearing in the prior art lacks an oil regulating function, and when too much oil is injected, it is easy to cause waste, and when the oil is not injected sufficiently, it will aggravate the damage of the bearing.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a wear-resistant bearing of a travel reducer, comprising a bearing shell, a bearing body is arranged inside the bearing shell, and a liquid inlet pipe is connected to the top of the bearing body;

[0008] An oil injection assembly is provided on the top of the bearing body, and the oil injection assembly includes an oil storage tube. The oil storage tube is provided on the top of the bearing body, and the top of the oil storage tube is connected to a sealing tube. A sealing plug is slidably connected inside the sealing tube, and a moving rod is fixedly connected to the bottom of the sealing plug, and a rubber plug is fixedly connected to the bottom of the moving rod.

[0009] The utility model is further configured that one side of the oil storage pipe is connected to an air inlet pipe, a connecting pipe is threadedly connected to the surface of the liquid inlet pipe, and a top end of the connecting pipe is connected to the oil storage pipe.

[0010] The utility model is further configured that a support sleeve is sleeved on the surface of the moving rod, and both sides of the support sleeve are fixedly connected with fixed rods.

[0011] The present utility model is further configured such that a spring is sleeved on the surface of the moving rod, and the top end and the bottom end of the spring are fixedly connected to the sealing plug and the support sleeve respectively.

[0012] The present utility model is further configured such that the diameter of the rubber plug is the same as the inner diameter of the connecting pipe, and the opposite sides of the fixed rod are fixedly connected to the inner wall of the oil storage pipe.

[0013] The present utility model is further configured such that a protective coating is provided on the surface of the bearing body, and the protective coating is a hard chromium coating.

[0014] The present utility model has the following beneficial effects:

[0015] Through the arrangement of the oil injection assembly, when it is necessary to overhaul the bearing body, an external oil pipe can be inserted into the oil storage pipe, and the sealing plug is pushed. When the sealing plug is pushed, the rubber plug is driven to insert into the connecting pipe, so that the bottom of the oil storage pipe is sealed. At this time, oil is injected into the oil storage pipe, which can facilitate the staff to observe and control the amount of injected oil. After the oil injection is completed, the external oil pipe is pulled out of the oil storage pipe, and the rubber plug is reset under the action of the spring, so that the oil can be injected into the bearing body, realizing the function of precise oil injection, avoiding too little oil injection amount, which causes the bearing to wear more severely, and improving the protection effect.

[0016] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below.

[0018] Figure 1 It is a three-dimensional structure diagram of a wear-resistant bearing of a walking speed reducer;

[0019] Figure 2 It is a partial cross-sectional view of the bearing body in a wear-resistant bearing of a walking speed reducer;

[0020] Figure 3 It is a side cross-sectional view of the oil storage pipe in a wear-resistant bearing of a walking speed reducer;

[0021] Figure 4 It is a schematic diagram of the downward movement of the sealing plug and the rubber plug in a wear-resistant bearing of a walking speed reducer.

[0022] In the drawings: 1, bearing housing; 2, bearing body; 3, liquid inlet pipe; 4, oil storage pipe; 5, sealing pipe; 6, sealing plug; 7, moving rod; 8, rubber plug; 9, air inlet pipe; 10, connecting pipe; 11, support sleeve; 12, fixed rod; 13, spring. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present utility model will be described in conjunction with the accompanying drawings in the embodiments of the present utility model. The described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0024] For the first specific embodiment, please refer to Figures 1-4 , the present utility model is a wear-resistant bearing for a walking speed reducer, including a bearing housing 1. A bearing body 2 is arranged inside the bearing housing 1, and a liquid inlet pipe 3 is communicated with the top of the bearing body 2; a lubricating oil injection assembly is arranged at the top of the bearing body 2. The lubricating oil injection assembly includes an oil storage pipe 4, and the oil storage pipe 4 is arranged at the top of the bearing body 2. A sealing pipe 5 is communicated with the top of the oil storage pipe 4. A sealing plug 6 is slidably connected inside the sealing pipe 5. A moving rod 7 is fixedly connected to the bottom of the sealing plug 6, and a rubber plug 8 is fixedly connected to the bottom of the moving rod 7.

[0025] Specifically: the front side of the oil storage pipe 4 is made of glass, which can facilitate the staff to observe the oil liquid storage in the oil storage pipe 4. At the same time, a scale is arranged on the front side of the oil storage pipe 4. Both the sealing plug 6 and the rubber plug 8 are made of rubber. When the sealing plug 6 is inserted into the sealing pipe 5, the top of the oil storage pipe 4 can be sealed. When the rubber plug 8 moves downward and is inserted into the connecting pipe 10, the bottom of the oil storage pipe 4 can be sealed.

[0026] For the second specific embodiment, please refer to Figures 1-4 , on the basis of the first specific embodiment, an air inlet pipe 9 is communicated with one side of the oil storage pipe 4. A connecting pipe 10 is threadedly connected to the surface of the liquid inlet pipe 3. The top of the connecting pipe 10 is communicated with the oil storage pipe 4. A support sleeve 11 is sleeved on the surface of the moving rod 7. Fixing rods 12 are fixedly connected to both sides of the support sleeve 11. A spring 13 is sleeved on the surface of the moving rod 7. The top and bottom of the spring 13 are fixedly connected to the sealing plug 6 and the support sleeve 11 respectively. The diameter of the rubber plug 8 is the same as the inner diameter of the connecting pipe 10. The opposite sides of the fixing rods 12 are fixedly connected to the inner wall of the oil storage pipe 4. A protective coating is arranged on the surface of the bearing body 2, and the protective coating is a hard chromium coating.

[0027] Specifically: the air inlet pipe 9 can help the oil storage pipe 4 communicate with the external air, so that the oil liquid can flow downward through its own fluidity. The liquid inlet pipe 3 and the connecting pipe 10 are threadedly connected, and the oil storage pipe 4 can be removed when the bearing body 2 is in use. The spring 13 has the function of compressing and storing energy, which can reset the sealing plug 6. The hard chromium coating has the advantages of high hardness, excellent wear resistance, good corrosion resistance and surface finish, etc., which can effectively reduce the friction and wear of the bearing body 2.

[0028] The working principle of the present utility model is as follows: When it is necessary to inject oil into the bearing body 2, the staff manually moves the external oil injector, inserts the oil outlet end of the oil injector into the oil storage pipe 4, and pushes the sealing plug 6. When the sealing plug 6 is pushed, the rubber plug 8 is driven to insert into the connecting pipe 10 to keep the bottom of the oil storage pipe 4 sealed. Then, the external oil injector is pressed to inject the oil into the oil storage pipe 4, which is convenient for the staff to observe and control the amount of injected oil;

[0029] After the oil injection is completed, the external oil pipe is pulled out of the oil storage pipe 4, and the pushing of the sealing plug 6 is cancelled. At this time, under the action of the spring 13, the rubber plug 8 is reset, so that the oil can be injected into the bearing body 2 through the connecting pipe 10, realizing the function of accurate oil injection, avoiding less oil injection amount, aggravating the bearing wear, and improving the protection effect.

[0030] The standard parts used in the present utility model can all be purchased from the market, and can also be customized according to the description of the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatically controlled by a control unit. The control circuit of the control unit can be realized by simple programming by those skilled in the art, which belongs to the common knowledge in the art. Therefore, the control method and the circuit connection are not explained in detail in the present utility model.

[0031] The above-disclosed preferred embodiments of the present utility model are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor limit the present utility model to the specific embodiments described. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art in the relevant technical field can well understand and utilize the present utility model.

Claims

1. A wear-resistant bearing for a walking speed reducer, comprising a bearing housing (1), characterized in that: Inside the bearing housing (1), a bearing body (2) is provided, and a liquid inlet pipe (3) is connected to the top of the bearing body (2); At the top of the bearing body (2), an oil injection assembly is provided. The oil injection assembly includes an oil storage pipe (4). The oil storage pipe (4) is arranged at the top of the bearing body (2). A sealing pipe (5) is connected to the top of the oil storage pipe (4). A sealing plug (6) is slidably connected inside the sealing pipe (5). A moving rod (7) is fixedly connected to the bottom of the sealing plug (6). A rubber plug (8) is fixedly connected to the bottom of the moving rod (7). The front side of the oil storage pipe (4) is made of glass, and a scale is arranged on the front side of the oil storage pipe (4).

2. The wear-resistant bearing of a walking speed reducer according to claim 1, characterized in that: An air inlet pipe (9) is connected to one side of the oil storage pipe (4). A connecting pipe (10) is threadedly connected to the surface of the liquid inlet pipe (3), and the top end of the connecting pipe (10) is connected to the oil storage pipe (4).

3. The wear-resistant bearing of a walking speed reducer according to claim 1, wherein: A support sleeve (11) is sleeved on the surface of the moving rod (7), and fixing rods (12) are fixedly connected to both sides of the support sleeve (11).

4. The wear-resistant bearing of a walking speed reducer according to claim 1, characterized in that: A spring (13) is sleeved on the surface of the moving rod (7), and the top end and the bottom end of the spring (13) are fixedly connected to the sealing plug (6) and the support sleeve (11) respectively.

5. The wear-resistant bearing of a walking speed reducer according to claim 3, characterized in that: The diameter of the rubber plug (8) is the same as the inner diameter of the connecting pipe (10), and the opposite sides of the fixing rods (12) are fixedly connected to the inner wall of the oil storage pipe (4).

6. The wear-resistant bearing of a walking speed reducer according to claim 1, characterized in that: A protective coating is arranged on the surface of the bearing body (2), and the protective coating adopts a hard chromium plating layer.

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