High-speed bearing pressure testing system
By adopting a fast centering technology of bidirectional screw, synchronous spline sliding shaft and conical clamping head in the bearing pressure testing system, combined with the synergistic work of the nip roller and the test pressure electric cylinder, the bearing is efficient and accurate, and the complex and time-consuming installation and separation in the existing technology is solved, and the testing efficiency and accuracy are improved.
Patent Information
- Application Number
- CN202411956743.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-29
- Publication Date
- 2025-04-29
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing bearing pressure testing devices rely on manual operation when installing and separating, and the steps are cumbersome, time-consuming and labor-intensive, and the process of taking out the bearings after testing is complicated, which increases the difficulty and time-consuming operation, affecting the accuracy of the test results and the efficiency of industrial applications.
A high-speed bearing pressure testing system is designed, using a bidirectional screw, a synchronous spline sliding shaft and a tapered clamp head to achieve rapid and accurate centering of the bearing. The synergistic work of the nip roller and the test pressure cylinder is used to detect the force applied to the outer ring of the bearing in real time through the pressure sensor, and a centrifugal force separation module is designed to automatically throw the bearing out through the joint action of the drive motor, planetary gears and electromagnetic friction blocks.
It achieves rapid and accurate centering of the bearing and uniform pressure distribution, improves testing efficiency and accuracy, reduces manual intervention, and improves the scope of application of the equipment and the accuracy of the test results.
Smart Images
Figure CN119901488A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of bearing testing, and in particular to a high-speed bearing pressure testing system. Background Art
[0002] As a core component of high-precision machinery, the performance of ball bearings directly affects the operating efficiency and life of the equipment. The axial pressure test of ball bearings is an important part of evaluating their load-bearing capacity and reliability. Existing bearing pressure testing devices generally rely on manual operation during installation and separation, which is cumbersome, time-consuming and labor-intensive. The fixing mechanism of some equipment uses bolt fastening or manual clamps, which is not only complicated to install, but may also cause additional damage to the outer ring of the bearing. At the same time, the process of removing the bearing after the test requires the assistance of tools, which further increases the difficulty and time-consuming of the operation. These problems not only affect the accuracy of the test results, but also reduce the test efficiency in industrial applications and limit the scope of application of the equipment. Summary of the invention
[0003] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: a high-speed bearing pressure testing system, comprising a base, a top support plate is overhead fixed on the base, a top rotating disk and a bottom rotating disk are rotatably mounted on the top support plate and the base respectively; the top rotating disk and the bottom rotating disk are fixed as a whole by a guide slide bar, and two symmetrically arranged test moving platforms are slidably arranged on the guide slide bar, and a conical clamping head sliding groove is provided on the test moving platform, and a conical clamping head for clamping the centering bearing is slidably arranged in the conical clamping head sliding groove; wherein three test pressure electric cylinders are also fixed on the bottom rotating disk, and the ends of the telescopic rods of the three test pressure electric cylinders are fixedly matched with the support support plate, and three clamping drive disk surface support columns are fixed on the support support plate, and clamping sliding arms are slidably arranged on the three clamping drive disk surface support columns along the radial direction of the bearing, and a clamping roller is rotatably mounted on each clamping sliding arm through a clamping roller bracket, wherein the circumferential surface of the clamping roller is set in a conical concave shape, and the three clamping rollers are used to clamp the bearing in.
[0004] Preferably, each test movable platform is slidably equipped with a spline screw column in a spline manner, the spline screw column is arranged parallel to the axis of the sliding groove of the conical clamping head, and the conical clamping head and the spline screw column are rotationally connected, and the test movable platform is also provided with a ventilation hole connected to the outside.
[0005] Preferably, a limiting plate is fixed on each test movable platform, and two mutually meshing nut gears and a linkage gear are rotatably mounted between the limiting plate and the opposite surface of the test movable platform, wherein the nut gear and the spline screw column are threadedly engaged.
[0006] Preferably, two parallel bidirectional screws and synchronous spline sliding shafts are rotatably installed between the opposite surfaces of the bottom rotating disk and the top rotating disk, and the bidirectional screw is in threaded transmission cooperation with the two test mobile platforms to drive the two test mobile platforms to move relative to each other, wherein all the linkage gears are in spline sliding cooperation with the synchronous spline sliding shaft; a bottom adjustment motor is fixed on the bottom rotating disk, and the output shaft of the bottom adjustment motor is fixed to the synchronous spline sliding shaft, the top end of the bidirectional screw extends to the top of the top rotating disk, and an edge adjustment gear is fixed to the top end of the bidirectional screw, and an intermediate transmission shaft is fixed at the center of the upper surface of the top rotating disk.
[0007] Preferably, a clamping drive disk is rotatably embedded on the outer sides of the three clamping drive disk support columns, wherein a sliding pin is fixed to one end of each clamping sliding arm away from the clamping roller bracket, and three inclined sliding grooves are provided on the clamping drive disk, which slideably cooperate with the three sliding pins respectively.
[0008] Preferably, a clamping drive gear ring is fixedly mounted on the clamping drive disk surface, the clamping drive gear ring is coaxially arranged with the clamping drive disk surface, a clamping motor is fixedly mounted on the support plate, and a clamping drive gear meshing with the clamping drive gear ring is fixedly mounted on the output shaft of the clamping motor.
[0009] Preferably, a rotating gear ring limiting frame is fixedly installed on the upper surface of the top support plate, and a rotating gear ring is rotatably installed at the center position of the rotating gear ring limiting frame. The rotating gear ring limiting frame is also provided with at least three electromagnetic friction block sliding grooves, and an electromagnetic friction block that cooperates with the rotating gear ring by magnetic friction is slidably installed in each electromagnetic friction block sliding groove.
[0010] Preferably, a driving motor is fixed overhead on the top supporting plate through a driving motor bracket, the output shaft of the driving motor is fixedly matched with the intermediate transmission shaft, a planetary gear bracket plate meshing with the edge adjustment gear is rotatably installed at the center of the upper surface of the top rotating disk, a central gear is rotatably installed at the center of the upper surface of the planetary gear bracket plate, and the central gear is fixedly matched with the intermediate transmission shaft, so that the central gear, the intermediate transmission shaft and the top rotating disk rotate synchronously.
[0011] Preferably, the central gear and the rotating gear ring are meshed and driven by three planetary gears, and the central gear, the planetary gears and the rotating gear ring are on the same plane, wherein the three planetary gears are rotatably mounted on the upper surface of the planetary gear support plate.
[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention realizes fast and accurate centering of the bearing through a bidirectional screw, a synchronous spline sliding shaft and a conical clamping head. The double-conical clamping head, in cooperation with the sliding of the test moving platform, ensures the concentricity of the bearing axis and the test system, reduces adjustment errors, and improves test efficiency and accuracy; (2) The present invention utilizes the coordinated work of three clamping rollers and a test pressure electric cylinder, and uses a pressure sensor to detect the force applied to the outer ring of the bearing in real time, ensuring uniform pressure distribution, meeting the requirements of different test scenarios, and avoiding test errors caused by single-point force; (3) The present invention designs a centrifugal force separation module, which automatically throws out the bearing after the test is completed through the combined action of a drive motor, planetary gears and an electromagnetic friction block. The entire process does not require manual intervention, which improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0014] Figure 2 For the present invention Figure 1 Schematic diagram of the structure at point A in the middle.
[0015] Figure 3 It is a structural schematic diagram of the rotating gear ring of the present invention.
[0016] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at point B in the middle.
[0017] Figure 5 It is a schematic diagram of the structure of the clamping driving gear ring of the present invention.
[0018] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at point C in the middle.
[0019] Figure 7 This is a structural diagram of a mobile station for testing the present invention.
[0020] Figure 8 It is a schematic diagram of the structure of the conical clamping head of the present invention.
[0021] In the figure: 101-base; 102-driving motor; 103-rotating gear ring limiting frame; 104-top supporting plate; 105-electromagnetic friction block; 106-electromagnetic friction block sliding groove; 107-rotating gear ring; 108-top rotating disk; 109-planetary gear; 110-center gear; 111-planetary gear support disk; 112-intermediate transmission shaft; 113-edge adjustment gear; 114-bidirectional screw rod; 115-guide slide rod; 116-synchronous spline sliding shaft; 117-bottom rotating disk; 118-bottom adjustment motor; 119-driving motor support; 12 0-supporting pallet; 121-clamping motor; 122-clamping drive gear; 123-clamping drive gear ring; 124-clamping drive disk; 125-sliding inclined groove; 126-sliding pin; 127-clamping drive disk support column; 128-test pressure electric cylinder; 129-clamping roller bracket; 130-clamping sliding arm; 131-test moving platform; 132-conical clamping head; 133-spline screw column; 134-nut gear; 135-ventilation hole; 136-limiting plate; 137-linkage gear; 138-conical clamping head sliding groove; 139-clamping roller. DETAILED DESCRIPTION
[0022] The following is combined with Figure 1-8 , and further illustrate the technical solution of the present invention through specific implementation methods.
[0023] The present invention provides a high-speed bearing pressure testing system, comprising a base 101, a top support plate 104 is fixed overhead on the base 101, a top rotating disk 108 and a bottom rotating disk 117 are rotatably mounted on the top support plate 104 and the base 101 respectively; the top rotating disk 108 and the bottom rotating disk 117 are fixed as a whole by a guide slide bar 115, two symmetrically arranged test moving tables 131 are slidably arranged on the guide slide bar 115, and a conical clamping head sliding groove 138 is opened on the test moving table 131, and a conical clamping head sliding groove 138 is slidably arranged in the conical clamping head sliding groove 138 for clamping a centering bearing. shaped clamping head 132; wherein three test pressure electric cylinders 128 are also fixed on the bottom rotating disk 117, and the ends of the telescopic rods of the three test pressure electric cylinders 128 are fixedly matched with the support pallet 120, and three clamping drive disk surface support columns 127 are fixed on the support pallet 120, and the three clamping drive disk surface support columns 127 are all slidably provided with clamping sliding arms 130 along the radial direction of the bearing, and each clamping sliding arm 130 is rotatably installed with a clamping roller 139 through a clamping roller bracket 129, wherein the circumferential surface of the clamping roller 139 is set in a conical concave shape, and the three clamping rollers 139 are used to clamp the bearing in. Each test mobile platform 131 is provided with a spline screw column 133 in a sliding manner in a spline manner, and the spline screw column 133 is arranged parallel to the axis of the tapered clamping head sliding groove 138, and the tapered clamping head 132 and the spline screw column 133 are rotationally connected, wherein the test mobile platform 131 is also provided with an air vent 135 connected to the outside. A limiting plate 136 is also fixed to each test mobile platform 131, and two mutually meshing nut gears 134 and a linkage gear 137 are rotatably installed between the limiting plate 136 and the opposite surface of the test mobile platform 131, wherein the nut gear 134 and the spline screw column 133 are threadedly connected. Two parallel bidirectional screw rods 114 and synchronous spline sliding shafts 116 are also rotatably installed between the opposite surfaces of the bottom rotating disk 117 and the top rotating disk 108. The bidirectional screw rod 114 is threadedly matched with the two test moving platforms 131 to drive the two test moving platforms 131 to move relative to each other, wherein all the linkage gears 137 are spline-sliding matched with the synchronous spline sliding shaft 116; a bottom adjustment motor 118 is fixed on the bottom rotating disk 117, and the output shaft of the bottom adjustment motor 118 is fixed to the synchronous spline sliding shaft 116, the top end of the bidirectional screw rod 114 extends to the top of the top rotating disk 108, and an edge adjustment gear 113 is fixed to the top end of the bidirectional screw rod 114, and an intermediate transmission shaft 112 is fixed at the center of the upper surface of the top rotating disk 108.The outer sides of the three clamping drive disc support columns 127 are rotatably embedded with the clamping drive disc 124, wherein each clamping sliding arm 130 is fixed with a sliding pin 126 at one end away from the clamping roller bracket 129, and the clamping drive disc 124 is provided with three inclined sliding bevels 125 that are respectively slidably matched with the three sliding pins 126. A clamping drive gear ring 123 is fixedly mounted on the clamping drive disc 124, and the clamping drive gear ring 123 is coaxially arranged with the clamping drive disc 124. A clamping motor 121 is fixedly mounted on the support plate 120, and a clamping drive gear 122 that meshes with the clamping drive gear ring 123 is fixedly mounted on the output shaft of the clamping motor 121. A rotating gear ring limiting frame 103 is fixedly mounted on the upper surface of the top support plate 104, and a rotating gear ring 107 is rotatably mounted at the center of the rotating gear ring limiting frame 103. At least three electromagnetic friction block sliding grooves 106 are also provided on the rotating gear ring limiting frame 103, and an electromagnetic friction block 105 that cooperates with the rotating gear ring 107 by magnetic force friction is slidably mounted in each electromagnetic friction block sliding groove 106. A driving motor 102 is overhead fixed on the top support plate 104 through a driving motor bracket 119, and the output shaft of the driving motor 102 is fixedly matched with the intermediate transmission shaft 112. A planetary gear support disc 111 that meshes with the edge adjustment gear 113 is rotatably mounted at the center of the upper surface of the top rotating disk 108, and a central gear 110 is rotatably mounted at the center of the upper surface of the planetary gear support disc 111, and the central gear 110 is fixedly matched with the intermediate transmission shaft 112, so that the central gear 110, the intermediate transmission shaft 112 and the top rotating disk 108 rotate synchronously. The central gear 110 and the rotating gear ring 107 are meshed and transmitted through three planetary gears 109 , and the central gear 110 , the planetary gears 109 and the rotating gear ring 107 are located on the same plane, wherein the three planetary gears 109 are rotatably mounted on the upper surface of the planetary gear support plate 111 .
[0024] The working principle of a high-speed bearing pressure testing system disclosed in the present invention is as follows: the bearing is placed between two test moving platforms 131, and then the bottom adjusting motor 118 is started, the bottom adjusting motor 118 drives the synchronous spline sliding shaft 116 to rotate, the synchronous spline sliding shaft 116 drives the two linkage gears 137 to rotate, the linkage gear 137 drives the corresponding nut gear 134 to rotate, the nut gear 134 drives the spline screw column 133 to move along its own axial direction, and then pushes the two conical clamping heads 132 to approach each other, at this time, the bearing can be clamped and centered, and then the telescopic rod of the test pressure electric cylinder 128 is controlled to move the clamping roller 139 to a position flush with the bearing (the middle part of the clamping roller 139 is flush with the middle part of the bearing), and the clamping motor 121 on the support plate 120 is started, and the output shaft of the clamping motor 121 drives the clamping drive gear 122 to rotate (the output shaft of the support plate 120 is aligned with the clamping drive gear 122). A worm gear single-line transmission self-locking mechanism is arranged between the gears 122), the clamping drive gear 122 drives the clamping drive gear ring 123 to rotate, and the clamping drive gear ring 123 drives the clamping drive disk 124 to rotate (the clamping drive gear ring 123 is fixed to the clamping drive disk 124), and the clamping drive disk 124 drives the sliding pin 126 to slide in the sliding groove 125 through the inclined sliding groove 125. Since the sliding pin 126 is fixed on the clamping sliding arm 130, and the clamping sliding arm 130 is arranged on the clamping drive disk support column 127 along the radial sliding direction of the bearing, the rotation of the clamping drive disk 124 will drive the clamping sliding arm 130 to move along the radial direction of the bearing. At this time, the clamping sliding arm 130 drives the clamping roller 139 to approach and clamp the bearing through the clamping roller bracket 129. A motor wheel is arranged inside the clamping roller 139 to drive the clamping roller 139 to rotate itself, and then drive the outer ring of the bearing to rotate. After the three clamping rollers 139 are stuck on the outer ring of the bearing, the test pressure electric cylinder 128 is controlled again. Through the test pressure electric cylinder 128, force can be applied to the outer ring of the bearing, thereby testing the bearing pressure of the ball bearing (a pressure sensor is provided on the telescopic rod of the test pressure electric cylinder 128, which is used to detect the force applied to the clamping roller 139 by the test pressure electric cylinder 128).
[0025] When the test is completed, all the clamping rollers 139 are separated from the outer ring of the bearing by the clamping motor 121, and then all the clamping rollers 139 are controlled to move downward by the test pressure cylinder 128 so that the clamping rollers 139 do not block the bearing. At this time, the drive motor 102 is controlled, and the output shaft of the drive motor 102 drives the top rotating disk 108 to rotate through the intermediate transmission shaft 112. At this time, all the components fixed to the top rotating disk 108 will rotate together (all the components between the top rotating disk 108 and the bottom rotating disk 117), and at the same time, the electromagnetic friction block 105 is energized, and the electromagnetic friction block 105 generates magnetic force and attracts the rotating gear ring 107 to limit the rotation of the rotating gear ring 107 through magnetic friction. The rotating gear ring 107 cannot rotate, which will cause all the planetary gears 109 to revolve around the axis of the intermediate transmission shaft 112, and then drive the planetary gear bracket plate 111 to rotate. The rotation of the planetary gear bracket plate 111 will drive the edge adjustment gear 113 to rotate. The rotation of the edge adjustment gear 113 drives the bidirectional lead screw 114 to rotate. The rotation of the bidirectional lead screw 114 will drive the two test moving platforms 131 to move away, and at the same time, the two conical clamping heads 132 no longer clamp the bearings, and due to the overall rotation, the disengaged bearings will be thrown out under the action of centrifugal force to achieve the separation function.
[0026] Finally, the bottom adjustment motor 118 is controlled, and the bottom adjustment motor 118 controls the two conical clamping heads 132 to move away, so that the conical clamping heads 132 are reset. At the same time, if the electromagnetic friction block 105 is not activated, only the drive motor 102 is started, then all parts between the top rotating disk 108 and the bottom rotating disk 117 can be controlled to rotate separately, without controlling the distance adjustment between the two test moving platforms 131.
Claims
1. A high-speed bearing pressure testing system, characterized in that: The invention comprises a base (101), a top support plate (104) is fixed overhead on the base (101), a top rotating disk (108) and a bottom rotating disk (117) are rotatably mounted on the top support plate (104) and the base (101), respectively; the top rotating disk (108) and the bottom rotating disk (117) are fixed as a whole via a guide slide bar (115), two symmetrically arranged test moving tables (131) are slidably arranged on the guide slide bar (115), a conical clamping head sliding groove (138) is provided on the test moving table (131), and a conical clamping head (132) for clamping a centering bearing is slidably arranged in the conical clamping head sliding groove (138); Three test pressure electric cylinders (128) are fixed on the bottom rotating disk (117), and the ends of the telescopic rods of the three test pressure electric cylinders (128) are fixedly matched with the support plate (120). Three clamping drive disk surface support columns (127) are fixed on the support plate (120), and clamping sliding arms (130) are slidably arranged along the radial direction of the bearing on the three clamping drive disk surface support columns (127). A clamping roller (139) is rotatably mounted on each clamping sliding arm (130) through a clamping roller bracket (129), wherein the circumferential surface of the clamping roller (139) is conically concave, and the three clamping rollers (139) are used to clamp the bearing in.
2. A high-speed bearing pressure testing system according to claim 1, characterized in that: Each test movable platform (131) is provided with a spline screw column (133) in a slidable manner in a spline manner, the spline screw column (133) is arranged parallel to the axis of the conical clamping head sliding groove (138), and the conical clamping head (132) and the spline screw column (133) are rotationally connected to each other, wherein the test movable platform (131) is also provided with an air vent (135) connected to the outside.
3. A high-speed bearing pressure testing system according to claim 2, characterized in that: A limiting plate (136) is also fixed on each test movable platform (131), and two mutually meshing nut gears (134) and a linkage gear (137) are rotatably mounted between the limiting plate (136) and the opposite surface of the test movable platform (131), wherein the nut gear (134) and the spline screw rod column (133) are threadedly engaged with each other.
4. A high-speed bearing pressure testing system according to claim 3, characterized in that: Two parallel bidirectional screw rods (114) and a synchronous spline sliding shaft (116) are also rotatably mounted between the opposite surfaces of the bottom rotating disk (117) and the top rotating disk (108). The bidirectional screw rod (114) is threadedly matched with the two test moving platforms (131) to drive the two test moving platforms (131) to move relative to each other, wherein all the linkage gears (137) are spline-sliding matched with the synchronous spline sliding shaft (116). A bottom adjustment motor (118) is fixed on the bottom rotating disk (117), and the output shaft of the bottom adjustment motor (118) is fixed to the synchronous spline sliding shaft (116). The top end of the bidirectional screw rod (114) extends to the top of the top rotating disk (108), and an edge adjustment gear (113) is fixed to the top end of the bidirectional screw rod (114). At the same time, an intermediate transmission shaft (112) is fixed at the center of the upper surface of the top rotating disk (108).
5. A high-speed bearing pressure testing system according to claim 4, characterized in that: The outer sides of the three clamping drive disk support columns (127) are rotatably embedded with a clamping drive disk (124), wherein each clamping sliding arm (130) is fixed with a sliding pin (126) at one end away from the clamping roller bracket (129), and the clamping drive disk (124) is provided with three inclined sliding grooves (125) that are respectively slidably matched with the three sliding pins (126).
6. A high-speed bearing pressure testing system according to claim 5, characterized in that: A clamping drive ring gear (123) is fixedly mounted on the clamping drive disk surface (124), and the clamping drive ring gear (123) is coaxially arranged with the clamping drive disk surface (124). A clamping motor (121) is fixedly mounted on the support plate (120), and a clamping drive gear (122) meshing with the clamping drive ring gear (123) is fixedly mounted on the output shaft of the clamping motor (121).
7. A high-speed bearing pressure testing system according to claim 6, characterized in that: A rotating gear ring limiting frame (103) is fixedly mounted on the upper surface of the top support plate (104), a rotating gear ring (107) is rotatably mounted at the center of the rotating gear ring limiting frame (103), and at least three electromagnetic friction block sliding grooves (106) are also provided on the rotating gear ring limiting frame (103), and an electromagnetic friction block (105) that cooperates with the rotating gear ring (107) by magnetic friction is slidably mounted in each electromagnetic friction block sliding groove (106).
8. A high-speed bearing pressure testing system according to claim 7, characterized in that: A driving motor (102) is fixed overhead on the top support plate (104) via a driving motor bracket (119); an output shaft of the driving motor (102) is fixedly matched with an intermediate transmission shaft (112); a planetary gear bracket disc (111) meshing with an edge adjustment gear (113) is rotatably mounted at the center of the upper surface of the top rotating disc (108); a central gear (110) is rotatably mounted at the center of the upper surface of the planetary gear bracket disc (111); the central gear (110) is fixedly matched with the intermediate transmission shaft (112), so that the central gear (110), the intermediate transmission shaft (112) and the top rotating disc (108) rotate in a fixed and synchronous manner.
9. A high-speed bearing pressure testing system according to claim 8, characterized in that: The central gear (110) and the rotating gear ring (107) are meshed and transmitted via three planetary gears (109), and the central gear (110), the planetary gears (109) and the rotating gear ring (107) are located on the same plane, wherein the three planetary gears (109) are all rotatably mounted on the upper surface of the planetary gear support plate (111).