Highly wear-resistant oilless bearing

Abstract

The utility model discloses a high-wear-resistance oilless bearing, and belongs to the technical field of oilless bearings. Comprising a metal matrix; the inner side and the outer side of the metal base body are each provided with a plurality of polyfluortetraethylene plates with the positions controlled through lead screws and guide rods at equal angles. A plurality of polyfluortetraethylene plates of which the positions are controlled through lead screws and guide rods are arranged on the inner side and the outer side of a metal base body at equal angles, so that when the device is used, the device can be connected with an external device through the polyfluortetraethylene plates on the inner side and the outer side, and meanwhile, the polyfluortetraethylene plates are polymers with low friction coefficients; the device has excellent self-lubricating performance, so that a continuous lubricating effect can be provided in an oil-free environment, when a gap between the device and an external device is large, the device is taken down, then the position of the polyfluortetraethylene plate is changed through the lead screw, the device can be continuously used, and when the polyfluortetraethylene plate is used up through friction, only a new polyfluortetraethylene plate needs to be replaced. Therefore, the cost can be greatly reduced.

Description

Technical Field

[0001] The utility model provides a high-wear-resistant oil-free bearing, belonging to the technical field of oil-free bearings. Background Art

[0002] A bearing is a mechanical component used to support rotating shafts or other moving parts, reduce friction and bear loads. It provides a low-friction contact surface between two relatively moving surfaces, making rotational or linear motion smoother and more efficient. An oil-free bearing is a bearing that does not require external lubricant to work properly. It is usually made of self-lubricating materials with a low friction coefficient and good wear resistance.

[0003] Currently, when oil-free bearings are in use, the self-lubricating material is rubbed only when the metal base is rubbed, and can provide lubrication for the metal base. However, as the working time increases, the metal base of the oil-free bearing becomes thinner and thinner, resulting in a larger gap between the oil-free bearing and the devices on both sides, causing the oil-free bearing to fail, and then need to be replaced with a new oil-free bearing, which increases the cost of use. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the metal base of the current oil-free bearing will become thinner after being used for a period of time, and a new oil-free bearing needs to be replaced, which increases the use cost.

[0005] In order to solve the above problems, the utility model proposes a technical solution: a high wear-resistant oil-free bearing, comprising a metal base; the inner and outer sides of the metal base are respectively provided with a plurality of polytetrafluoroethylene plates at equal angles, the positions of which are controlled by screw rods and guide rods.

[0006] As an improvement, a plurality of threaded holes are provided at equal angles in the middle of the metal base, and guide holes are provided on both sides of the threaded holes;

[0007] As an improvement, the polytetrafluoroethylene plate includes an inner plate arranged on the inner side of the metal substrate and an outer plate arranged on the outer side of the metal substrate;

[0008] As an improvement, the outer side of the inner plate is connected to the screw rod and the guide rods on both sides of the screw rod are fixed, and the inner side of the outer plate is connected to the screw rod and the guide rods on both sides of the screw rod are fixed;

[0009] As an improvement, a hexagonal groove is provided at one end of the screw rod connected to the inner plate away from the inner plate, and a hexagonal groove is provided at one end of the screw rod connected to the outer plate away from the outer plate.

[0010] Beneficial effects of the utility model:

[0011] By arranging a number of polytetrafluoroethylene plates at equal angles on the inner and outer sides of the metal base, whose positions are controlled by screws and guide rods, the device can be connected to external devices through the inner and outer polytetrafluoroethylene plates when in use. At the same time, since the polytetrafluoroethylene plate is a polymer with a low friction coefficient and excellent self-lubricating properties, it can provide continuous lubrication in an oil-free environment. When the gap between the device and the external device is large, the device can be removed and the position of the polytetrafluoroethylene plate can be changed by the screw to enable the device to continue to be used. When the polytetrafluoroethylene plate is worn out, only a new polytetrafluoroethylene plate needs to be replaced, which can greatly reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a high-wear-resistant oil-free bearing of the utility model.

[0013] Figure 2 This is a schematic diagram of the state of a high-wear-resistant oil-free bearing of the utility model.

[0014] 1. Metal base; 101. Threaded hole; 102. Guide hole; 2. Screw; 201. Hexagonal groove; 3. Guide rod; 4. Polytetrafluoroethylene plate; 401. Inner plate; 402. Outer plate. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] according to Figure 1 —2 shows: The utility model provides a high wear-resistant oil-free bearing: comprising a metal base 1; a plurality of polytetrafluoroethylene plates 4 whose positions are controlled by screws 2 and guide rods 3 are provided at equal angles on the inner and outer sides of the metal base 1; a plurality of threaded holes 101 are provided at equal angles in the middle of the metal base 1, and guide holes 102 are provided on both sides of the threaded holes 101; when the device is in use, it can be connected to an external device through the polytetrafluoroethylene plates 4 on the inner and outer sides. At the same time, since the polytetrafluoroethylene plate 4 is a polymer with a low friction coefficient and excellent self-lubricating properties, it can provide continuous lubrication in an oil-free environment. When the gap between the device and the external device is large, the device is removed, and then the position of the polytetrafluoroethylene plate 4 is changed by the screw 2, so that the device can continue to be used. When the polytetrafluoroethylene plate 4 is worn out, only a new polytetrafluoroethylene plate 4 needs to be replaced, which can greatly reduce the cost.

[0017] according to Figure 2As shown: the polytetrafluoroethylene plate 4 includes an inner plate 401 arranged on the inner side of the metal base 1 and an outer plate 402 arranged on the outer side of the metal base 1; the outer side of the inner plate 401 rotates to connect the screw rod 2 and fixes the guide rods 3 on both sides of the screw rod 2, and the inner side of the outer plate 402 rotates to connect the screw rod 2 and fixes the guide rods 3 on both sides of the screw rod 2; the end of the screw rod 2 connected to the inner plate 401 away from the inner plate 401 is provided with a hexagonal groove 201, and the end of the screw rod 2 connected to the outer plate 402 away from the outer plate 402 is provided with a hexagonal groove 201; in this way, the screw rod 2 can be rotated by the hexagonal bolt, and the guide rod 3 can be used to change the position of the inner plate 401 and the outer plate 402, so that when the gap between the polytetrafluoroethylene plate 4 and the external device is large, the focusing position can be changed, so that the device can continue to be used, and when the polytetrafluoroethylene plate 4 is worn out, only a new polytetrafluoroethylene plate 4 needs to be replaced, which can greatly reduce the cost.

[0018] The principle of the present utility model is as follows: when in use, first use the hexagonal bolt to rotate the screw rod 2, cooperate with the guide rod 3, change the position of the inner plate 401 and the outer plate 402, so that the inner plate 401 and the outer plate 402 respectively correspond to the connected device, and then install the device. When in use, the inner plate 401 and the outer plate 402 will be rubbed. Since the polytetrafluoroethylene plate 4 is a polymer with a low friction coefficient and has excellent self-lubricating properties, it can provide continuous lubrication effect in an oil-free environment. After a period of use, a large gap will appear between the inner plate 401, the outer plate 402 and the external device. At this time, remove the device, and then change the position of the inner plate 401 and the outer plate 402 again through the screw rod 2, so that the device can continue to be used. When the polytetrafluoroethylene plate 4 is rubbed out, only a new polytetrafluoroethylene plate 4 needs to be replaced, which can greatly reduce the cost.

[0019] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A highly wear-resistant oil-free bearing, comprising a metal base (1); characterized in that: A plurality of polytetrafluoroethylene plates (4) whose positions are controlled by screw rods (2) and guide rods (3) are provided at equal angles on the inner side and the outer side of the metal base (1).

2. A highly wear-resistant oil-free bearing according to claim 1, characterized in that: A plurality of threaded holes (101) are provided at equal angles in the middle of the metal base (1), and guide holes (102) are provided on both sides of the threaded holes (101).

3. The high wear-resistant oil-free bearing according to claim 1, characterized in that: The polytetrafluoroethylene plate (4) comprises an inner plate (401) arranged on the inner side of the metal base (1) and an outer plate (402) arranged on the outer side of the metal base (1).

4. The high wear-resistant oil-free bearing according to claim 3, characterized in that: The outer side of the inner plate (401) is connected to the screw rod (2) by rotation, and the guide rods (3) on both sides of the screw rod (2) are fixedly connected. The inner side of the outer plate (402) is connected to the screw rod (2) by rotation, and the guide rods (3) on both sides of the screw rod (2) are fixedly connected.

5. The highly wear-resistant oil-free bearing according to claim 1, characterized in that: The end of the screw rod (2) connected to the inner plate (401) away from the inner plate (401) is provided with a hexagonal groove (201), and the end of the screw rod (2) connected to the outer plate (402) away from the outer plate (402) is provided with a hexagonal groove (201).

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