A dynamic balance detection device for double-stage tandem bearings

Abstract

The present invention discloses a two-stage series bearing dynamic balance detection device, which relates to the field of bearing detection technology, including a workbench, a detection motor is fixedly connected to one side of the top of the workbench, and the output shaft of the detection motor is fixedly connected to a transmission shaft. The bearing is limited and fixed by a support plate, a storage slot and a limit plate, and the bearing to be tested is driven to move to the outside of the detection column by an electric push rod, and the side wall of the bearing to be tested squeezes the trigger ring, so that the three clamping plates automatically clamp and fix the bearing to be tested. After the detection is completed, the fixation of the bearing to be tested can be automatically released. This loading and unloading method is simpler, and it takes less time and is more efficient when testing the same batch of bearings to be tested.

Description

Technical Field

[0001] The invention relates to the technical field of bearing detection, and in particular to a double-stage series bearing dynamic balance detection device. Background Art

[0002] Double-stage tandem bearings, also known as "double-layer rolling bearings", are composed of two rolling bearings nested in an I-shape through an adapter ring, in which the inner ring of the outer bearing and the outer ring of the inner bearing are connected to the adapter ring through interference fit to form the middle ring of the bearing. The inner ring of the inner bearing is installed on the shaft, and the outer ring of the outer bearing is installed in the bearing seat. During the production and processing of double-stage tandem bearings, dynamic balancing detection is usually required to accurately measure the imbalance of the bearing when rotating at high speed, and correct it, so as to ensure that its performance and quality can meet industry standards and customer requirements;

[0003] At present, the existing two-stage tandem bearing dynamic balance detection device usually requires the detection personnel to manually place the bearing on the detection device and fix it. After the detection is completed, the bearing is manually released and removed. The operation steps of this loading and unloading method are relatively cumbersome, which leads to low efficiency of the two-stage tandem bearing dynamic balance detection. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a two-stage tandem bearing dynamic balance detection device to solve the problem of low detection efficiency caused by manual loading and unloading in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a two-stage tandem bearing dynamic balance detection device, comprising a workbench, a detection motor is fixedly connected to one side of the top of the workbench, the output shaft of the detection motor is fixedly connected to a transmission shaft, the transmission shaft is rotatably connected to the top of the workbench, an automatic loading and unloading mechanism is arranged on the workbench, the automatic loading and unloading mechanism comprises an electric push rod, the electric push rod is fixedly connected to the top of the workbench, the output end of the electric push rod is fixedly connected to a mounting plate, the mounting plate is slidably connected to the top of the workbench, a storage groove is provided on the side of the mounting plate close to the detection motor, a circular opening is provided on the mounting plate, a mounting cylinder is fixedly connected to the bottom of the mounting plate, the upper end of the mounting cylinder is communicated with the storage groove, a support plate is slidably connected to the inside of the mounting cylinder, a magnet 1 is fixedly connected to the bottom of the support plate, a magnet 2 is fixedly connected to the bottom of the inner cavity of the mounting cylinder, the magnetism of the magnet 1 and the magnet 2 on the side close to each other is the same, and a clamping mechanism for fixing the bearing to be tested is also provided on the side of the transmission shaft away from the detection motor.

[0006] Preferably, connecting grooves are symmetrically provided on the mounting plate, the connecting grooves are interconnected with the storage grooves, a limiting plate is slidably connected inside the connecting grooves, and magnet three is fixedly connected to the limiting plate and the side of the connecting groove away from the storage groove, and the magnet three on the limiting plate magnetically repels the magnet three on the adjacent connecting groove.

[0007] Preferably, one end of the limiting plate located inside the storage slot is arc-shaped.

[0008] Preferably, the clamping mechanism includes a trigger cylinder, which is fixedly connected to one end of the transmission shaft away from the detection motor, and a detection column is fixedly connected to the side of the trigger cylinder away from the transmission shaft, and three mounting seats are fixedly connected to the inner wall of the side of the trigger cylinder away from the detection column at an equidistant interval, each mounting seat is rotatably connected to a transmission plate, a torsion spring is connected between the transmission plate and the mounting seat, both ends of the transmission plate are rotatably connected to a connecting handle, one side of the connecting handle away from the axis of the trigger cylinder is rotatably connected to a connecting block 1, and the connecting block 1 is slidably connected to the trigger cylinder, and the three connecting blocks 1 are away from one end of the transmission plate. The two sides are rotatably connected with a trigger ring, and the trigger ring is located outside the trigger tube, and one side of the connecting handle close to the axis of the trigger tube is rotatably connected with a connecting block 2, a groove is provided on the detection column, and three clamping plates are slidably connected inside the groove, and a limiting column is fixedly connected in the groove, and the limiting column is set in a triangular prism shape, and the limiting column is set between the three clamping plates, and the three connecting blocks 2 are respectively slidably connected to the three side surfaces of the limiting column, and the clamping plate and the connecting block 2 are both provided with inclined surfaces, the clamping plate is squeezed and matched with the adjacent connecting block 2, and the inclined surface on the clamping plate is squeezed and matched with the inclined surface on the connecting block 2.

[0009] Preferably, a side of the clamping plate away from the limiting column is located outside the detection column and is arc-shaped.

[0010] Preferably, the arc-shaped portion of the clamping plate is made of rubber material.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The movement of the bearing to be tested is limited by the support plate and the top of the inner cavity of the storage slot, and under the repulsive force between the magnet one and the magnet two, the support plate is vertically pressed against the bearing to be tested, and the bearing to be tested is clamped and fixed between the support plate and the top of the inner cavity of the storage slot, and the magnet three on the limit plate and the magnet three on the adjacent connecting slot repel each other, so that the arc-shaped ends of the two limit plates are tightly fitted on the outer ring of the bearing to be tested, and the bearing to be tested can be located in the middle of the storage slot, and then the support plate and the top of the inner cavity of the storage slot can be cooperated to limit the bearing to be tested, so that the bearing to be tested can be pre-installed before testing;

[0013] The electric push rod drives the bearing to be tested to move to the outside of the detection column, and the side wall of the bearing to be tested squeezes the trigger ring, so that the three clamping plates automatically clamp and fix the bearing to be tested. After the detection is completed, the electric push rod pulls the mounting plate to move to the side away from the trigger tube, so that the bearing to be tested is separated from the trigger ring. At this time, the torsion spring resets and drives the transmission plate to rotate in the opposite direction to reset, so that the connecting block 2 gradually moves to the side close to the detection motor. The clamping plate is in a loose state and moves away from the trigger ring due to the loss of the restriction of the connecting block 2, thereby automatically releasing the fixation of the bearing to be tested. This loading and unloading method is simpler, takes less time and is more efficient when testing the same batch of bearings to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0015] Figure 2 It is a schematic diagram of the overall structure of the present invention from a second viewing angle;

[0016] Figure 3 It is a schematic diagram of the structure of the mounting plate, the electric push rod and the detection column in the present invention;

[0017] Figure 4 It is a schematic diagram of the structure of the storage slot, the limiting plate and the installation cylinder in the present invention;

[0018] Figure 5 It is a schematic diagram of the structure explosion of the support plate, the limit plate and the magnet three in the present invention;

[0019] Figure 6 It is a schematic diagram of the structure of the trigger tube, the detection column and the clamping plate in the present invention;

[0020] Figure 7 It is a schematic diagram of the structure explosion of the connecting block 1, the trigger ring and the clamping plate in the present invention;

[0021] Figure 8 It is a schematic diagram of the structure of the limiting column, the groove and the connecting block 2 in the present invention;

[0022] Fig. 9 It is a schematic diagram of the structure of the transmission shaft, the trigger cylinder and the clamping plate in the present invention.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1, workbench; 101, detection motor; 102, transmission shaft;

[0025] 2, electric push rod; 201, mounting plate; 202, storage slot; 203, connecting slot; 204, limit plate; 205, mounting tube; 206, support plate; 207, magnet three; 208, magnet one; 209, magnet two;

[0026] 3, trigger cylinder; 301, detection column; 302, mounting seat; 303, transmission plate; 304, torsion spring; 305, connecting block one; 306, trigger ring; 307, connecting block two; 308, groove; 309, clamping plate; 310, connecting handle; 311, limiting column. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0028] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0029] like Figures 1 to 5As shown, a two-stage tandem bearing dynamic balance detection device includes a workbench 1, a detection motor 101 is fixedly connected to one side of the top of the workbench 1, the output shaft of the detection motor 101 is fixedly connected to a transmission shaft 102, the transmission shaft 102 is rotatably connected to the top of the workbench 1, and an automatic loading and unloading mechanism is arranged on the workbench 1. The automatic loading and unloading mechanism includes an electric push rod 2, the electric push rod 2 is fixedly connected to the side of the top of the workbench 1 away from the detection motor 101, the output end of the electric push rod 2 is fixedly connected to a mounting plate 201, the mounting plate 201 is slidably connected to the top of the workbench 1, and a storage groove 202 is opened at the center of one side of the mounting plate 201 close to the detection motor 101, wherein the mounting plate 2 A circular opening is provided at a position corresponding to the storage groove 202 on 01, and the circular opening is communicated with the storage groove 202. A connecting groove 203 is symmetrically provided on the mounting plate 201, and the connecting groove 203 is communicated with the storage groove 202. A limiting plate 204 is slidably connected inside the connecting groove 203, and one end of the limiting plate 204 located inside the storage groove 202 is arc-shaped. A mounting tube 205 is fixedly connected to the bottom of the mounting plate 201, and the upper end of the mounting tube 205 is communicated with the storage groove 202. A support plate 206 is slidably connected inside the mounting tube 205, and the upper part of the support plate 206 is located in the storage groove 202, and the length of the upper part of the support plate 206 is less than the diameter value of the circular opening on the mounting plate 201. The limiting plate 204 and the connecting groove 203 are fixedly connected to the side away from the storage groove 202 with magnet three 207. The magnet three 207 on the limiting plate 204 and the magnet three 207 on the adjacent connecting groove 203 magnetically repel each other. A magnet one 208 is fixedly connected to the bottom of the support plate 206. A magnet two 209 is fixedly connected to the bottom of the inner cavity of the mounting tube 205. The magnets one 208 and the two magnets 209 that are close to each other have the same magnetic properties. The magnet one 208 is located on the movement trajectory of the magnet two 209. A clamping mechanism for fixing the bearing to be tested is also provided on the side of the transmission shaft 102 away from the detection motor 101.

[0030] like Figures 1 to 3 as well as Figures 6 to 9As shown, the clamping mechanism includes a trigger cylinder 3, which is fixedly connected to one end of the transmission shaft 102 away from the detection motor 101, and a detection column 301 is fixedly connected to the side of the trigger cylinder 3 away from the transmission shaft 102, and the detection column 301 is arranged corresponding to the position of the circular opening, and the diameter value of the detection column 301 is smaller than the diameter value of the circular opening, ensuring that the detection column 301 can pass through the circular opening on the mounting plate 201. Three mounting seats 302 are fixedly connected in an annular manner at equal intervals on the inner wall of one side of the trigger tube 3 away from the detection column 301, each mounting seat 302 is rotatably connected to a transmission plate 303, a torsion spring 304 is connected between the transmission plate 303 and the mounting seat 302, both ends of the transmission plate 303 are rotatably connected to a connecting handle 310, one side of the connecting handle 310 away from the axis of the trigger tube 3 is rotatably connected to a connecting block 1 305, and the connecting block 1 305 extends to the outside of the trigger tube 3, the connecting block 1 305 is slidably connected to the trigger tube 3, and the three connecting blocks 1 305 are rotatably connected to a trigger ring 306 on one side away from the transmission plate 303, and the trigger ring 306 is located outside the trigger tube 3. A connecting block 2 307 is rotatably connected to one side of the connecting handle 310 close to the axis of the trigger tube 3, a groove 308 is provided on the detection column 301, and three clamping plates 309 are slidably connected inside the groove 308, a limiting column 311 is fixedly connected inside the groove 308, the limiting column 311 is set in a triangular prism shape, and the limiting column 311 is set between the three clamping plates 309, and the three connecting blocks 2 307 are respectively slidably connected to the three side surfaces of the limiting column 311, wherein the side of the clamping plate 309 away from the limiting column 311 is located outside the detection column 301 and is arc-shaped, and the arc-shaped part of the clamping plate 309 is set to rubber material for increasing the friction between the clamping plate 309 and the bearing, and the sides of the clamping plate 309 and the connecting block 2 307 close to each other are both provided with inclined surfaces, the clamping plate 309 is squeezed and matched with the adjacent connecting block 2 307, and the inclined surface on the clamping plate 309 is squeezed and matched with the inclined surface on the connecting block 2 307.

[0031] Everything in the above examples works as follows:

[0032] When in use, the worker first places the bearing to be tested in the storage groove 202, so that the bearing to be tested squeezes the two limit plates 204, so that the two limit plates 204 are separated from each other, and the outer ring of the bearing to be tested contacts the top of the support plate 206. At this time, the distance between the support plate 206 and the top of the inner cavity of the storage groove 202 is smaller than the diameter value of the outer ring of the bearing to be tested. Then the worker manually squeezes the bearing, causing the support plate 206 to slide downward along the inside of the installation cylinder 205 under force, and at the same time, the two limit plates 204 are further separated from each other. In this process, the magnet 1 208 located at the bottom of the support plate 206 gradually approaches the magnet 2 209 located at the bottom of the inner cavity of the installation cylinder 205, until the outer ring of the bearing to be tested is completely placed in the storage groove 202. That is, the worker loosens the bearing, and under the repulsive force between the magnet 1 208 and the magnet 2 209, the support plate 206 is vertically pressed against the bearing to be tested, and the bearing to be tested is clamped and fixed between the support plate 206 and the top of the inner cavity of the storage slot 202. At this time, the inner ring of the bearing to be tested is located within the range of the circular opening. At the same time, the magnet 3 207 on the limiting plate 204 and the magnet 3 207 on the adjacent connecting slot 203 repel each other, so that the arc-shaped ends of the two limiting plates 204 are tightly fitted on the outer ring of the bearing to be tested, and the bearing to be tested can be located in the middle of the storage slot 202, and then the support plate 206 and the top of the inner cavity of the storage slot 202 can be used to limit the bearing to be tested, so as to facilitate the subsequent loading work;

[0033] Then, the electric push rod 2 is started, and the electric push rod 2 pushes the mounting plate 201 to move toward the side close to the detection motor 101, so that the bearing to be tested in the storage groove 202 moves synchronously with the mounting plate 201, and the inner ring of the bearing to be tested first moves to the outside of the detection column 301, and then the end of the detection column 301 away from the trigger tube 3 extends into the circular opening on the mounting plate 201 and passes out from the circular opening, so that the mounting plate 201 can move along the outer surface of the detection column 301. When the bearing to be tested in the storage groove 202 moves to the side away from the storage groove 202 and contacts the trigger ring 306, the bearing to be tested pushes the trigger ring 306 to move toward the side close to the trigger tube 3 through the thrust of the electric push rod 2. At this time, the trigger ring 30 The three connecting blocks 1 305 on 6 slide toward the inside of the trigger tube 3, and the connecting block 1 305 pushes the connecting handle 310 connected thereto to move, thereby driving the transmission plate 303 to rotate, and at the same time causing the torsion spring 304 to deform. When the transmission plate 303 rotates, it will drive the connecting handle 310 away from the side of the connecting block 1 305 to move, thereby pushing the connecting block 2 307 to move along the limiting column 311 to the side away from the detection motor 101. At this time, the inclined surface on the connecting block 2 307 is squeezed and matched with the inclined surface on the adjacent clamping plate 309, so that the clamping plate 309 moves to the side away from the limiting column 311, until the three clamping plates 309 fit with the inner ring of the bearing to be tested, thereby automatically fixing the bearing to be tested.

[0034] After the bearing to be tested is fixed, the detection motor 101 is used to drive the transmission shaft 102, the trigger tube 3, the detection column 301 and the inner ring of the bearing to be tested to rotate. The worker detects the imbalance amount and imbalance point of the bearing to be tested through the existing dynamic balancing tester. Then the worker places the corresponding mass block at the position of the imbalance point of the bearing to be tested, and then continues the detection until the dynamic balance test of the bearing to be tested is qualified.

[0035] When the detection is completed, the electric push rod 2 pulls the mounting plate 201 to move to the side away from the trigger tube 3, so that the bearing to be tested is separated from the trigger ring 306, and the bearing to be tested no longer squeezes the trigger ring 306 toward the side close to the detection motor 101. At this time, the torsion spring 304 is reset to drive the transmission plate 303 to rotate in the opposite direction and reset, so that the connecting block 2 307 gradually moves toward the side close to the detection motor 101. The clamping plate 309 is in a loose state and away from the trigger ring 306 due to the loss of the restriction of the connecting block 2 307, thereby releasing the fixation of the bearing to be tested, so as to facilitate the subsequent unloading of the bearing to be tested. The electric push rod 2 can drive the mounting plate 201 and the bearing to be tested to move to the side away from the detection motor 101. When the electric push rod 2 returns to its original position, the detection personnel first pulls the bearing to be tested downward to cause the bearing to be tested to be separated from the top of the inner cavity of the storage slot 202, and then the bearing to be tested can be taken out.

[0036] The electric push rod 2 drives the mounting plate 201 and the bearing to be tested to move, so that the bearing to be tested can be moved to the outside of the detection column 301, and the trigger ring 306 can be squeezed by the bearing to be tested, so that the three clamping plates 309 automatically clamp and fix the bearing to be tested. After the detection is completed, the electric push rod 2 pulls the mounting plate 201 to move to the side away from the trigger tube 3, so that the bearing to be tested is separated from the trigger ring 306. At this time, the torsion spring 304 is reset to drive the transmission plate 303 to rotate in the opposite direction to reset, so that the connecting block 307 gradually moves to the side close to the detection motor 101. The clamping plate 309 is in a loose state and away from the trigger ring 306 due to the loss of the restriction of the connecting block 307, thereby automatically releasing the fixation of the bearing to be tested. This loading and unloading method is simpler, and it takes less time and is more efficient to detect the same batch of bearings to be tested.

[0037] The above is a detailed introduction to the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A two-stage series bearing dynamic balance detection device, characterized in that , comprising a workbench (1), a detection motor (101) being fixedly connected to one side of the top of the workbench (1), an output shaft of the detection motor (101) being fixedly connected to a transmission shaft (102), the transmission shaft (102) being rotatably connected to the top of the workbench (1), an automatic loading and unloading mechanism being arranged on the workbench (1), the automatic loading and unloading mechanism comprising an electric push rod (2), the electric push rod (2) being fixedly connected to the top of the workbench (1), an output end of the electric push rod (2) being fixedly connected to a mounting plate (201), the mounting plate (201) being slidably connected to the top of the workbench (1), and a mounting plate (201) being provided on one side of the mounting plate (201) close to the detection motor (101) The mounting plate (201) is provided with a circular opening, a mounting tube (205) is fixedly connected to the bottom of the mounting plate (201), an upper end of the mounting tube (205) is communicated with the mounting tube (202), a support plate (206) is slidably connected inside the mounting tube (205), a magnet 1 (208) is fixedly connected to the bottom of the support plate (206), a magnet 2 (209) is fixedly connected to the bottom of the inner cavity of the mounting tube (205), the magnets of the magnet 1 (208) and the magnet 2 (209) are the same on the side close to each other, and a clamping mechanism for fixing the bearing to be tested is also provided on the side of the transmission shaft (102) away from the detection motor (101); The clamping mechanism comprises a trigger cylinder (3), the trigger cylinder (3) being fixedly connected to one end of a transmission shaft (102) away from a detection motor (101), a detection column (301) being fixedly connected to one side of the trigger cylinder (3) away from the transmission shaft (102), three mounting seats (302) being fixedly connected to an inner wall of one side of the trigger cylinder (3) away from the detection column (301) in an annular manner and equidistantly, each mounting seat (302) being rotatably connected to a transmission plate (303), a torsion spring (304) being connected between the transmission plate (303) and the mounting seat (302), both ends of the transmission plate (303) being rotatably connected to a connecting handle (310), a connecting block 1 (305) being rotatably connected to one side of the connecting handle (310) away from an axis of the trigger cylinder (3), and the connecting block 1 (305) being slidably connected to the trigger cylinder (3), and the three connecting blocks 1 (305) rotating together at the sides away from the transmission plate (303) A trigger ring (306) is connected, and the trigger ring (306) is located outside the trigger tube (3); a connecting block (307) is rotatably connected to one side of a connecting handle (310) close to the axis of the trigger tube (3); a groove (308) is provided on the detection column (301); three clamping plates (309) are slidably connected inside the groove (308); a limiting column (311) is fixedly connected inside the groove (308); the limiting column (311) is set in a triangular prism shape; the limiting column (311) is set between the three clamping plates (309); the three connecting blocks (307) are respectively slidably connected to the three side surfaces of the limiting column (311); the clamping plates (309) and the connecting blocks (307) are both provided with inclined surfaces; the clamping plates (309) are pressed and matched with the adjacent connecting blocks (307); and the inclined surfaces on the clamping plates (309) are pressed and matched with the inclined surfaces on the connecting blocks (307).

2. A two-stage tandem bearing dynamic balance detection device according to claim 1, characterized in that: The mounting plate (201) is symmetrically provided with connecting grooves (203), the connecting grooves (203) and the storage grooves (202) are interconnected, a limiting plate (204) is slidably connected inside the connecting grooves (203), a magnet three (207) is fixedly connected to the limiting plate (204) and the side of the connecting grooves (203) away from the storage grooves (202), and the magnet three (207) on the limiting plate (204) and the magnet three (207) on the adjacent connecting grooves (203) are magnetically repelled.

3. A two-stage tandem bearing dynamic balance detection device according to claim 2, characterized in that: One end of the limiting plate (204) located inside the storage groove (202) is arc-shaped.

4. A two-stage tandem bearing dynamic balance detection device according to claim 1, characterized in that: The side of the clamping plate (309) away from the limiting column (311) is located outside the detection column (301) and is arc-shaped.

5. A two-stage tandem bearing dynamic balance detection device according to claim 4, characterized in that: The arc-shaped portion of the clamping plate (309) is made of rubber material.

Images