Bearing gasket selecting device
By using positioning discs and rechargeable laser displacement sensors in bearing pad selection devices, the problem of large size and insufficient applicability of pad selection devices in the prior art is solved, and the demand for high-precision measurement and production of various products in a narrow space is achieved. Improves the accuracy and efficiency of pad selection.
Patent Information
- Application Number
- CN202323570377.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-26
AI Technical Summary
In the prior art, the pad selection equipment is large in size and is not easy to move, and is only suitable for continuous production of single-category products, which cannot meet the needs of mixed production of multiple products in the assembly workshop. The manual measurement method is low in accuracy and low efficiency, making it difficult to be in a small space. Accurately adjust the thickness of the gasket inside.
A bearing pad selection device including a positioning disk and a rechargeable laser displacement sensor is designed. Through the positioning disk positioning bearings, the laser displacement sensor measures the bearing end face distance, and accurately measure and calculate the thickness and quantity of the pads. The device structure is simple and volume Small and portable, suitable for production of various products.
It improves the accuracy and efficiency of pad selection, the device structure is light and easy to transfer, meets the mixed production needs of multiple products, ensures the accuracy and reliability of pad selection, and reduces production costs.
Smart Images
Figure CN222188196U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transmission production line transformation, in particular to a bearing pad selection device. Background Art
[0002] At present, the gap between the shaft system and the housing of the automobile gearbox is generally adjusted by a gasket to adjust the axial clearance, so as to ensure the normal operation and service life of each transmission part on the transmission shaft. The accuracy of the gasket thickness selection will directly affect the axial clearance. When the gasket thickness is insufficient, it will cause axial movement of the shaft system, and the assembly accuracy requirements are high. Whether the selection of the adjustment gasket is reasonable will directly affect the performance and service life of the gearbox, and directly determine the life of the product. If the adjustment gasket is too thick, the clearance of the bearing will be too small. After the temperature rises during the working process of the bearing, the clearance will be eliminated due to its thermal expansion, so that it works in a gapless state, resulting in early failure and burning of the bearing. If the adjustment gasket is too thin, it will cause inaccurate shaft positioning, the meshing side clearance of the gear will increase during the working process of the gearbox, and the tooth direction will not mesh normally with the change of the meshing force point, resulting in noise. Therefore, choosing a suitable adjustment gasket is an important process parameter in the assembly process of the gearbox, which directly affects the working quality of the gearbox.
[0003] When selecting a gasket, the required thickness of the adjustment pad needs to be determined based on the distance between the bearing end face and the housing surface and the thickness of the sleeve; in the prior art, a manual measurement method using a vernier caliper is used, and the required thickness and quantity of the adjustment pads are calculated based on the measured values. However, due to the small measurement space, the manual vernier caliper measurement method not only results in low measurement accuracy and poor reliability due to the involvement of human factors, but also has the problems of high measurement difficulty and low efficiency.
[0004] The Chinese utility model patent with the authorization publication number CN216432905U discloses a device for measuring and selecting the thrust bearing adjustment pad of the intermediate shaft of an automobile transmission, comprising a frame, a workbench is horizontally arranged on the frame, and a measuring assembly; a first cylinder is vertically arranged on the frame and is located above the workbench; the measuring assembly comprises a positioning pin, a connecting frame, a floating plate, a base plate and a first displacement sensor; the floating plate and the connecting frame are connected by a plurality of first spring rods; the base plate and the floating plate are connected by a plurality of guide rods; a limit groove is arranged on the rod body of the guide rod, and the body of the floating plate is movably connected in the limit groove; the first displacement sensor is multiple and vertically arranged on the floating plate, and the sensing end of a single first displacement sensor extends downward from the floating plate and is aligned with the base plate. Although the pad selection device can improve the measurement accuracy and efficiency to a certain extent, such equipment is large in size, not easy to transfer, and requires the production line to have corresponding supporting facilities. It is only suitable for the continuous production of a single variety of products. Under the current situation of mixed production of multiple products in the assembly workshop, the realization cost is high and the difficulty is large, and it cannot meet the assembly requirements. Utility Model Content
[0005] Aiming at the problems that the pad selection equipment in the prior art is large in size, inconvenient to move, only suitable for continuous production of a single product variety, and unable to meet the mixed production needs of multiple products in an assembly workshop, the utility model provides a bearing pad selection device.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A bearing pad selection device comprises a positioning plate, wherein a positioning pin is arranged inside the positioning plate for positioning a transmission intermediate shaft; the positioning plate is provided with a mounting opening, and a laser displacement sensor is installed on the mounting opening; when working, the bottom end of the positioning plate is flush with the processing surface of the bearing housing to which the adjustment pad is to be installed, and the laser point of the laser displacement sensor is projected on the bearing surface to which the adjustment pad is to be installed.
[0008] Preferably, the laser displacement sensor is fixed to the mounting opening of the positioning plate through a side plate.
[0009] Preferably, the side plate is perpendicular to the axial direction of the positioning plate.
[0010] Preferably, a baffle is provided at the bottom end of the side plate, and the baffle is perpendicular to the side plate.
[0011] Preferably, a lifting portion is provided at the top end of the positioning plate.
[0012] Preferably, the laser displacement sensor is a rechargeable laser displacement sensor.
[0013] Preferably, a plurality of weight-reducing holes are provided on the positioning plate.
[0014] Furthermore, it also includes a calibration plate, which is arranged in cooperation with the bottom surface of the positioning plate and is used to calibrate the laser displacement sensor.
[0015] Preferably, a calibration groove is provided on the calibration disk.
[0016] Preferably, the depth of the verification groove is 0.2 mm.
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] The utility model discloses a bearing pad selection device, comprising a positioning plate, wherein a positioning pin is arranged inside the positioning plate for positioning the transmission intermediate shaft; the positioning plate is provided with an installation opening, and a laser displacement sensor is installed on the installation opening; when working, the bottom end of the positioning plate is flush with the processing surface of the bearing housing of the adjustment pad to be installed, and the laser point of the laser displacement sensor is projected on the bearing surface of the adjustment pad to be installed. By setting the positioning plate and the positioning pin, the shaft head of the transmission intermediate shaft is positioned, and the setting of the laser displacement sensor realizes the distance test from the bearing end face to the laser emission point of the laser displacement sensor. The tester can install the adjustment pad of appropriate thickness and quantity by measuring the distance from the laser emission point of the laser displacement sensor to the bearing end face, so as to facilitate the accurate measurement and calculation of the thickness and quantity of the adjustment pad in a small space, and the result has high precision and reliability, which improves the accuracy and efficiency of pad selection, and the device has simple structure, small size, light weight, portability, easy transfer, and simple operation, which meets the mixed production needs of multiple products in the assembly workshop.
[0019] The setting of the side plate realizes the installation of the laser displacement sensor and the mounting opening of the positioning plate, and the installation is firm. The side plate can be adjusted as needed to adjust the position of the laser displacement sensor, and the disassembly is convenient.
[0020] The side plate is perpendicular to the axial direction of the positioning plate, ensuring that the laser point of the laser displacement sensor is vertically projected onto the end surface of the bearing.
[0021] A baffle is provided at the bottom end of the side plate, and the baffle is perpendicular to the side plate to ensure the rigid connection between the laser displacement sensor and the positioning plate. When the device is taken and moved, the shaking of the laser displacement sensor is reduced to ensure the stability of subsequent measurements.
[0022] The top end of the positioning plate is provided with a lifting portion to facilitate taking and moving the device.
[0023] The laser displacement sensor is a rechargeable laser displacement sensor. Since the power consumption of the device is low, the rechargeable laser displacement sensor can be used conveniently without the need to arrange extra wiring harnesses.
[0024] The positioning plate is provided with a plurality of weight-reducing holes, which can further reduce the weight of the device and facilitate taking and moving.
[0025] The setting of the calibration disk realizes the calibration of the laser displacement sensor and further ensures the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 The utility model is a schematic diagram of a bearing pad selection device.
[0027] Figure 2 The present invention is a structural diagram of a calibration disk of a bearing pad selection device.
[0028] Among them, 1-lifting part, 2-positioning plate, 3-positioning pin, 4-laser displacement sensor, 5-side plate, 6-baffle, 7-calibration plate, 71-calibration groove. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0032] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0033] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0034] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0035] The present invention will be further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.
[0036] The utility model discloses a bearing pad selection device, referring to Figure 1 , including a positioning plate 2, on which a plurality of weight-reducing holes are provided, and a positioning pin 3 is arranged inside the positioning plate 2 for positioning the intermediate shaft of the transmission; a mounting opening is provided on the positioning plate, and a laser displacement sensor 4 is fixedly installed on the mounting opening through a side plate 5; the side plate 5 is perpendicular to the axial direction of the positioning plate 2, and a baffle 6 is arranged at the bottom end of the side plate 5, and the baffle 6 is perpendicular to the side plate 5; when working, the bottom end of the positioning plate 2 is flush with the machined surface of the bearing housing of the adjustment pad to be installed, and the laser point of the laser displacement sensor 4 is hit on the bearing surface of the adjustment pad to be installed.
[0037] Preferably, a lifting portion 1 is provided at the top of the positioning plate 2. The lifting portion 1 may be a handle, a grip, etc., which is a component that is convenient for an operator to grasp.
[0038] The laser displacement sensor 4 is a rechargeable laser displacement sensor or an electrically powered laser displacement sensor, preferably a rechargeable laser displacement sensor, which is convenient for movement and line layout.
[0039] See also Figure 2 The bearing pad selection device further includes a calibration plate 7, which is arranged in cooperation with the bottom surface of the positioning plate 2, and a calibration groove 71 is arranged on the calibration plate 7 for calibrating the laser displacement sensor 4. Preferably, the depth of the calibration groove 71 is 0.2 mm.
[0040] Directions:
[0041] The utility model designs a special positioning plate 2 according to the structural characteristics of the bearing hole of the rear cover shell of the transmission assembly box. When in use, the accuracy of the laser displacement sensor 4 is first verified, and the positioning plate 2 is placed on the calibration plate 7 so that the laser point of the laser displacement sensor 4 falls on the plane of the calibration plate 7, and the data is recorded; then, the calibration plate 7 is rotated so that the laser point of the laser displacement sensor 4 falls inside the verification groove 71 of the calibration plate 7, and the data of the laser displacement sensor 4 is recorded. If the difference between the two measured data is equal to the depth of the verification groove 71, it means that the laser displacement sensor 4 is accurate. After the inspection of the laser displacement sensor 4 is completed, the positioning pin 3 is inserted into the shaft head countersunk hole to make the bottom end of the positioning disk 2 flush with the machined surface of the bearing housing to which the adjustment pad is to be installed, and the laser point of the laser displacement sensor 4 is hit on the bearing surface to which the adjustment pad is to be installed. Preferably, to ensure the accuracy of the measurement, the laser point of the laser displacement sensor 4 is hit on the smooth part of the bearing end face, and the measured data is recorded as A; the distance from the laser point of the laser displacement sensor 4 to the bearing housing to which the adjustment pad is to be installed, which makes the bottom end of the positioning disk 2 flush, is B, and the value of A minus B is calculated. According to the value of A minus B, the thickness and number of the gaskets are determined to complete the gasket selection.
[0042] In summary, the utility model provides a bearing pad selection device, which realizes positioning of the shaft head of the transmission intermediate shaft by setting the positioning plate 2 and the positioning pin 3. The setting of the laser displacement sensor 4 realizes the distance test from the bearing end face to the laser emission point of the laser displacement sensor. The tester can install the adjustment pads of appropriate thickness and quantity by measuring the distance from the laser emission point of the laser displacement sensor to the bearing end face, so as to accurately measure and calculate the thickness and quantity of the adjustment pads in a small space. The result has high precision and reliability, which improves the accuracy and efficiency of pad selection. In addition, the device has simple structure, small size, light weight, portability, easy transfer, and simple operation, which meets the mixed production needs of multiple products in assembly workshops.
[0043] The above description is only a preferred embodiment of the present invention and is not intended to impose any limitation on the technical solution of the present invention. Those skilled in the art should understand that, without departing from the spirit and principles of the present invention, the technical solution can also be subjected to several simple modifications and replacements, and these modifications and replacements are also within the scope of protection covered by the claims.
Claims
1. A bearing pad selection device, characterized in that: The invention comprises a positioning plate (2), wherein a positioning pin (3) is arranged inside the positioning plate (2) for positioning the intermediate shaft of the transmission; the positioning plate is provided with a mounting opening, and a laser displacement sensor (4) is mounted on the mounting opening; when in operation, the bottom end of the positioning plate (2) is flush with the processing surface of the bearing housing of the adjustment pad to be installed, and the laser point of the laser displacement sensor (4) is projected on the bearing surface of the adjustment pad to be installed.
2. The bearing pad selection device according to claim 1, characterized in that: The laser displacement sensor (4) is fixed on the mounting opening of the positioning plate (2) via a side plate (5).
3. The bearing pad selection device according to claim 2, characterized in that: The side plate (5) is perpendicular to the axial direction of the positioning plate (2).
4. The bearing pad selection device according to claim 3, characterized in that: A baffle (6) is provided at the bottom end of the side plate (5), and the baffle (6) is perpendicular to the side plate (5).
5. The bearing pad selection device according to claim 1, characterized in that: A lifting portion (1) is provided at the top end of the positioning plate (2).
6. The bearing pad selection device according to claim 1, characterized in that: The laser displacement sensor (4) is a rechargeable laser displacement sensor (4).
7. The bearing pad selection device according to claim 1, characterized in that: The positioning plate (2) is provided with a plurality of weight-reducing holes.
8. The bearing pad selection device according to claim 1, characterized in that: It also comprises a calibration disk (7), which is arranged in cooperation with the bottom surface of the positioning disk (2) and is used to calibrate the laser displacement sensor (4).
9. The bearing pad selection device according to claim 8, characterized in that: The calibration disc (7) is provided with a calibration groove (71).
10. The bearing pad selection device according to claim 9, characterized in that: The depth of the calibration groove (71) is 0.2 mm.