Powder metallurgy shaft sleeve for front-back moving motor of automobile seat

Abstract

The utility model relates to a powder metallurgy shaft sleeve for an automobile seat forward and backward moving motor, which belongs to the technical field of motor shaft sleeves, and comprises a protective outer plate, a bearing oiling mechanism is arranged in the protective outer plate, and the bearing oiling mechanism comprises an outer sleeve fixedly mounted on the inner side of the protective outer plate; an inner sleeve is fixedly installed on the inner side of the outer sleeve, and a fixing disc is fixedly installed on the right side of the outer sleeve and the right side of the inner sleeve. According to the powder metallurgy shaft sleeve for the front-back moving motor of the automobile seat, the device is fixed to an output shaft of the motor through the first circular groove and the second circular groove, the sealing gasket can be taken out from a groove between the outer sleeve and the protective outer plate, and at the moment, the oil inlet groove in one side of the outer sleeve can be opened; and then lubricating oil can be injected into the cavity between the outer sleeve and the inner sleeve through the oil inlet groove, then the sealing gasket is used for sealing again, the lubricating oil can lubricate the rolling ball, rusting or jamming caused by long-time use is prevented, and the flexibility and practicability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor shaft sleeves, in particular to a powder metallurgy shaft sleeve for a motor for moving a car seat forward and backward. Background Art

[0002] A bearing is a mechanical element that limits relative motion to a desired range of motion and reduces friction between moving parts. Bearings are designed to provide free linear motion of moving parts or free rotation about a fixed axis. They can also prevent motion by controlling the vector of the normal force acting on the moving part. Most bearings facilitate the desired motion by minimizing friction. Bearings can be broadly classified by different methods, such as the type of operation, the motion allowed, or the direction of the load applied to the part.

[0003] The adjustment of the car seat back requires the help of a motor. A shaft sleeve is installed on the motor to extend the service life of the main shaft. However, for the convenience of use, it is often necessary to remove the shaft sleeve from the main shaft to add lubricating oil. This operation is rather cumbersome and not conducive to the storage of lubricating oil, making it inconvenient to frequently disassemble and add lubricating oil. Therefore, this application proposes another technical solution to the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a powder metallurgy bushing for a motor for moving a car seat forward and backward, which has the advantages of convenient and quick addition of lubricating oil, etc., and solves the problem that the car seat backrest needs to be adjusted with the help of a motor. The motor will be provided with a bushing to extend the service life of the main shaft, but for the convenience of use, it is often necessary to remove the bushing from the main shaft to add lubricating oil, which is more cumbersome and not conducive to the storage of lubricating oil, thereby making it inconvenient to frequently disassemble and add lubricating oil.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a powder metallurgy sleeve for a motor for moving a car seat forward and backward, comprising a protective outer plate, wherein a bearing oiling mechanism is arranged inside the protective outer plate;

[0006] The bearing oiling mechanism comprises an outer sleeve fixedly mounted on the inner side of the protective outer plate, an inner sleeve fixedly mounted on the inner side of the outer sleeve, a fixing plate fixedly mounted on the right side of the outer sleeve and the inner sleeve, and a rolling ball arranged between the outer sleeve and the inner sleeve;

[0007] An oil inlet groove is provided on the left side of the outer sleeve, a sealing gasket which fits the protective outer plate is sleeved on the outer side of the outer sleeve, a first circular groove is provided inside the inner sleeve, and a second circular groove which is connected with the first circular groove is provided inside the inner sleeve.

[0008] Furthermore, a first chamfer is provided on the outer side of the fixing plate, and a second chamfer is provided on the left side of the protective outer plate.

[0009] Furthermore, the diameter of the inner sleeve is nine millimeters and the length of the inner sleeve is five centimeters.

[0010] Furthermore, the diameter of the first circular groove is six millimeters, and the diameter of the second circular groove is four millimeters.

[0011] Furthermore, a cavity for storing rolling balls is provided between the outer sleeve and the inner sleeve, and the oil inlet groove is connected to the cavity.

[0012] Furthermore, the number of the rolling balls is several, and the rolling balls are arranged between the outer sleeve and the inner sleeve.

[0013] Furthermore, the sealing gasket is a composite gasket made of a mixture of rubber and asbestos, and the sealing gasket is in contact with the outer sleeve and the protective outer plate.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The powder metallurgy sleeve of the motor for moving the car seat forward and backward is fixed to the output shaft of the motor through the first circular groove and the second circular groove by means of a bearing oiling mechanism, and the sealing gasket can be taken out from the groove between the outer sleeve and the protective outer plate. At this time, the oil inlet groove on one side of the outer sleeve can be opened, and then the lubricating oil can be injected into the cavity between the outer sleeve and the inner sleeve through the oil inlet groove, and then the sealing gasket is used for re-sealing. The lubricating oil can lubricate the rolling ball to prevent rust or jamming due to long-term use, thereby increasing the flexibility and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic cross-sectional view of the structure of the utility model;

[0017] Figure 2 It is a left side schematic diagram of the structure of the utility model;

[0018] Figure 3 It is a right side view schematic diagram of the structure of the utility model;

[0019] Figure 4 It is a three-dimensional schematic diagram of the structure of the utility model.

[0020] In the figure: 1, protective outer plate; 101, outer sleeve; 102, inner sleeve; 103, fixed plate; 104, rolling ball; 105, sealing gasket; 106, oil inlet groove; 107, first circular groove; 108, second circular groove; 109, first chamfer; 001, second chamfer. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 4 In this embodiment, a powder metallurgy sleeve for a motor for moving a car seat forward and backward includes a protective outer plate 1, and a bearing oiling mechanism is arranged inside the protective outer plate 1.

[0023] In this embodiment, the bearing oiling mechanism includes an outer sleeve 101 fixedly installed on the inner side of the protective outer plate 1, an inner sleeve 102 fixedly installed on the inner side of the outer sleeve 101, the diameter of the inner sleeve 102 is nine millimeters, the length of the inner sleeve 102 is five centimeters, a fixing plate 103 is fixedly installed on the right side of the outer sleeve 101 and the inner sleeve 102, and a rolling ball 104 is arranged between the outer sleeve 101 and the inner sleeve 102.

[0024] Among them, an oil inlet groove 106 is opened on the left side of the outer sleeve 101, and a cavity for storing rolling balls 104 is provided between the outer sleeve 101 and the inner sleeve 102. There are several rolling balls 104, and the rolling balls 104 are arranged between the outer sleeve 101 and the inner sleeve 102, which is convenient for quick oil change and lubrication of the rolling balls 104. The oil inlet groove 106 is connected to the cavity to facilitate the rotation of the rolling balls 104.

[0025] In this embodiment, a sealing gasket 105 is mounted on the outer side of the outer sleeve 101 and fits with the protective outer plate 1. The sealing gasket 105 is a composite gasket made of a mixture of rubber and asbestos. The sealing gasket 105 fits with the outer sleeve 101 and the protective outer plate 1, which helps the sealing gasket 105 to seal the oil inlet groove 106.

[0026] Among them, a first circular groove 107 is opened inside the inner sleeve 102, and a second circular groove 108 connected with the first circular groove 107 is opened inside the inner sleeve 102. The diameter of the first circular groove 107 is six millimeters, and the diameter of the second circular groove 108 is four millimeters. A first chamfer 109 is opened on the outer side of the fixed plate 103, and a second chamfer 001 is opened on the left side of the protective outer panel 1.

[0027] It should be noted that, through the bearing oiling mechanism, the device is fixed on the output shaft of the motor through the first circular groove 107 and the second circular groove 108, and the sealing gasket 105 can be taken out from the groove between the outer sleeve 101 and the protective outer plate 1. At this time, the oil inlet groove 106 on one side of the outer sleeve 101 can be opened, and then the lubricating oil can be injected into the cavity between the outer sleeve 101 and the inner sleeve 102 through the oil inlet groove 106, and then the sealing gasket 105 is used for re-sealing. The lubricating oil will lubricate the rolling ball 104 to prevent rust or jamming due to long-term use, thereby increasing the flexibility and practicality of the device.

[0028] The working principle of the above embodiment is:

[0029] The powder metallurgy bushing for the motor for moving the car seat forward and backward is used. When in use, the entire device is first set on the output shaft of the motor and fixed by the first circular groove 107 and the second circular groove 108. When refueling is needed after long-term use, the sealing gasket 105 can be taken out from the groove between the outer sleeve 101 and the protective outer plate 1, and the oil inlet groove 106 on one side of the outer sleeve 101 can be opened. Then, lubricating oil can be injected into the cavity between the outer sleeve 101 and the inner sleeve 102 through the oil inlet groove 106, and then the sealing gasket 105 is used for re-sealing. The lubricating oil will lubricate the rolling ball 104 to prevent rust or jamming due to long-term use, facilitate the normal movement of the subsequent seat, and improve the convenience of oil change and the flexibility of the device.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder metallurgy sleeve for a motor for moving a car seat forward and backward, comprising a protective outer plate (1), characterized in that: A bearing oiling mechanism is provided inside the protective outer plate (1); The bearing oiling mechanism comprises an outer sleeve (101) fixedly mounted on the inner side of the protective outer plate (1), an inner sleeve (102) fixedly mounted on the inner side of the outer sleeve (101), a fixing plate (103) fixedly mounted on the right side of the outer sleeve (101) and the inner sleeve (102), and a rolling ball (104) arranged between the outer sleeve (101) and the inner sleeve (102); An oil inlet groove (106) is provided on the left side of the outer sleeve (101), a sealing gasket (105) which fits the protective outer plate (1) is sleeved on the outer side of the outer sleeve (101), a first circular groove (107) is provided inside the inner sleeve (102), and a second circular groove (108) which is connected to the first circular groove (107) is provided inside the inner sleeve (102).

2. The powder metallurgy sleeve for a motor for moving a car seat forward and backward according to claim 1, characterized in that: The outer side of the fixing plate (103) is provided with a first chamfer (109), and the left side of the protective outer plate (1) is provided with a second chamfer (001).

3. The powder metallurgy sleeve for a motor for moving a car seat forward and backward according to claim 1, characterized in that: The diameter of the inner sleeve (102) is nine millimeters and the length of the inner sleeve (102) is five centimeters.

4. The powder metallurgy sleeve for a motor for moving a car seat forward and backward according to claim 1, characterized in that: The diameter of the first circular groove (107) is six millimeters, and the diameter of the second circular groove (108) is four millimeters.

5. The powder metallurgy sleeve for a motor for moving a car seat forward and backward according to claim 1, characterized in that: A cavity for storing a rolling ball (104) is provided between the outer sleeve (101) and the inner sleeve (102), and the oil inlet groove (106) is connected to the cavity.

6. The powder metallurgy sleeve for a motor for moving a car seat forward and backward according to claim 1, characterized in that: There are a plurality of rolling balls (104), and the rolling balls (104) are arranged between the outer sleeve (101) and the inner sleeve (102).

7. The powder metallurgy sleeve for a motor for moving a car seat forward and backward according to claim 1, characterized in that: The sealing gasket (105) is a composite gasket made of a mixture of rubber and asbestos, and the sealing gasket (105) fits the outer sleeve (101) and the protective outer plate (1).

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