CN221802717U - A wheel hub bearing axial clearance detection device - Google Patents

Abstract

The utility model discloses a wheel hub bearing axial clearance detection device, comprising a workbench, a fixing component is installed in the middle of the workbench, the fixing component comprises a plurality of equally spaced limiting grooves opened in the middle of the workbench, the plurality of limiting grooves are distributed in a circular shape as a whole, a positioning block is slidably connected inside the plurality of limiting grooves, a connecting rod is rotatably connected at the bottom of the plurality of positioning blocks, a connecting ring is rotatably connected at one end of the bottom of the plurality of connecting rods, a screw rod is rotatably connected at the middle of the outer wall of the bottom of the workbench, the connecting ring is threadedly connected to the outside of the screw rod, and a motor is fixedly installed on the outer wall of the bottom of the workbench. By arranging the fixing component, the utility model can synchronously move the plurality of positioning blocks closer to or farther from each other, thereby realizing the positioning and fixing of bearings of different models, making the device more adaptable and more convenient to operate.

Description

A wheel hub bearing axial clearance detection device

Technical Field

The utility model relates to the technical field of wheel hub production, in particular to an axial clearance detection device for a wheel hub bearing.

Background Art

The axial clearance between the inner and outer rings of the hub bearing and the intermediate rolling element has a direct impact on the vibration, shaft runout, rotation flexibility and life of the mechanical product. Therefore, it is necessary to test the axial clearance of the hub bearing.

After searching, a utility model with Chinese patent publication number CN218765039U discloses a bearing axial clearance detection device for detecting the axial clearance of a slewing bearing. The slewing bearing includes an inner ring and an outer ring. The upper end of the inner ring extends upward into the outer ring and extends out of the outer ring. The inner ring is rotatably connected to the outer ring. The bearing axial clearance detection device includes a detection seat, a limit assembly, a pressure assembly and a detection assembly.

The above device achieves the purpose of fixing by pressing the bearing with a downward pressing component. However, since the size of the pressing block is fixed, there are certain limitations on the fixing work of the bearing, making the device unable to adapt to the detection work of bearings of different models.

Utility Model Content

The utility model aims to provide a wheel hub bearing axial clearance detection device to solve the problems raised in the above background technology.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wheel hub bearing axial clearance detection device, comprising a workbench, characterized in that: a fixed component is installed in the middle of the workbench, the fixed component includes a plurality of equally spaced limit grooves opened in the middle of the workbench, the plurality of limit grooves are distributed in a circular shape as a whole, a plurality of limit grooves are slidably connected to a positioning block inside, a plurality of positioning blocks are rotatably connected to a connecting rod at the bottom, a plurality of connecting rods are rotatably connected to the same connecting ring at one end of the bottom, a screw rod 1 is rotatably connected to the middle of the outer wall of the bottom of the workbench, the connecting ring is threadedly connected to the outside of the screw rod 1, a motor 1 is fixedly installed on the outer wall of the bottom of the workbench, and the rotating shaft of the motor 1 and one end of the screw rod 1 are coaxially fixed.

Multiple positioning blocks can be synchronously moved closer to or farther away from each other, so that the positioning and fixing of bearings of different types can be achieved, making the device more adaptable and more convenient to operate. Motor 1 fixed at the bottom of the workbench is started, and motor 1 drives screw 1 to rotate. Because the connecting rod is restricted by the positioning block, the connecting ring is connected to multiple connecting rods, so the position of the connecting ring is also restricted and can only move up and down. The connecting ring can be driven downward by rotating the screw rod, and the connecting ring can drive multiple positioning blocks restricted by the limit grooves to approach each other through multiple connecting rods. Multiple positioning blocks can fix the bearing in the middle position of the workbench.

As a further preferred embodiment of the present technical solution, a material pushing assembly is installed on the top of the workbench, and the material pushing assembly and the fixing assembly are arranged in a staggered manner.

As a further preferred embodiment of the present technical solution, the material lifting assembly includes a second screw rod rotatably connected to one side of the top outer wall of the workbench, the second screw rod is threadedly connected to a holding rack, a plurality of positioning blocks are respectively located in the middle of the holding rack, a limiting rod is fixedly connected to the other side of the top outer wall of the workbench, the holding rack is slidably sleeved in the limiting rod, a second motor is fixedly installed on one side of the top outer wall of the workbench, and the output end of the second motor and one end of the second screw rod are coaxially fixed.

As a further preferred embodiment of the present technical solution, a control button is fixedly mounted on the outer wall of the top of the workbench, the control button is located at one end of one of the limit slots, and one of the positioning blocks can contact the control button.

When the positioning block moves to the end of the limit slot, one of the positioning blocks will be pressed on the outside of the control button. The control button controls the start of motor 2, and motor 2 drives screw rod 2 to rotate. The receiving rack restricted by the limit rod and screw rod 2 will move upward under the drive of screw rod 2, and then the bearing will also move up with the receiving rack. Since the gap of the receiving rack is larger, it will be easier to take the bearing.

As a further preferred embodiment of the present technical solution, a vertical plate is fixedly connected to one side of the top outer wall of the workbench, a hydraulic cylinder 1 is fixedly installed on the top of the vertical plate, a hydraulic cylinder 2 is fixedly installed on the output end of the hydraulic cylinder 1, a dial indicator is fixedly installed on the output end of the hydraulic cylinder 2, and the hydraulic cylinder 1 is located in the middle position of the fixed component.

As a further preferred embodiment of the present technical solution, the plurality of positioning blocks are all arranged in an arc shape, and outer walls of the plurality of positioning blocks close to each other are all provided with rubber gaskets.

As a further preferred embodiment of the present technical solution, the lead angle of the thread lines of screw rod one and screw rod two is smaller than the equivalent friction angle.

The utility model provides a wheel hub bearing axial clearance detection device, which has the following beneficial effects:

(1) The utility model can synchronously move multiple positioning blocks closer to or farther away from each other by setting a fixing component, so as to realize the positioning and fixing of bearings of different models, making the device more adaptable and more convenient to operate. The motor 1 fixed at the bottom of the workbench is started, and the motor 1 drives the screw 1 to rotate. Because the connecting rod is restricted by the positioning block, the connecting ring is connected to the multiple connecting rods, so the position of the connecting ring is also restricted and can only move up and down. The screw rod can drive the connecting ring to move downward by rotating. The connecting ring can drive the multiple positioning blocks restricted by the limit grooves to move closer to each other through the multiple connecting rods. The multiple positioning blocks can fix the bearing in the middle position of the workbench.

(2) The utility model sets a material ejection assembly. When the positioning block moves to the end of the limit groove, one of the positioning blocks will press on the outside of the control button. The control button controls the motor 2 to start, and the motor 2 drives the screw 2 to rotate. The receiving rack restricted by the limit rod and the screw 2 will move upward under the drive of the screw 2, and then the bearing will also move upward with the receiving rack. Since the gap of the receiving rack is large, it will be easier to take the bearing.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of the utility model from a first viewing angle;

FIG2 is a schematic diagram of the overall structure of the utility model from a second viewing angle;

FIG3 is an enlarged structural schematic diagram of point A in FIG1 of the present invention;

FIG4 is an enlarged schematic diagram of the structure of point B in FIG2 of the present invention;

In the figure: 1. workbench; 2. vertical plate; 3. hydraulic cylinder 1; 4. hydraulic cylinder 2; 5. dial indicator; 6. fixing assembly; 7. ejector assembly; 601. limit groove; 602. positioning block; 603. connecting rod; 604. connecting ring; 605. screw rod 1; 606. motor 1; 701. screw rod 2; 702. storage rack; 703. motor 2; 704. limit rod; 705. control button.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

The utility model provides a technical solution: as shown in Figures 1 and 4, in this embodiment, a wheel hub bearing axial clearance detection device includes a workbench 1, which is characterized in that: a fixing component 6 is installed in the middle of the workbench 1, the fixing component 6 includes a plurality of equally spaced limiting grooves 601 opened in the middle of the workbench 1, the plurality of limiting grooves 601 are distributed in a circular shape as a whole, a positioning block 602 is slidably connected inside the plurality of limiting grooves 601, a connecting rod 603 is rotatably connected at the bottom of the plurality of positioning blocks 602, a connecting rod 603 is rotatably connected at one end of the bottom of the plurality of connecting rods 603 to the same connecting ring 604, a screw rod 605 is rotatably connected at the middle of the outer wall at the bottom of the workbench 1, the connecting ring 604 is threadedly connected to the outside of the screw rod 605, a motor 606 is fixedly installed on the outer wall at the bottom of the workbench 1, and the rotating shaft of the motor 606 and one end of the screw rod 605 are coaxially fixed.

Motor 1 606 drives screw rod 1 605 to rotate, and because connecting rod 603 is restricted by positioning block 602, connecting ring 604 is connected to multiple connecting rods 603, so the position of connecting ring 604 is also restricted and can only move up and down. Screw rod 1 605 can drive connecting ring 604 to move downward by rotating, and connecting ring 604 can drive multiple positioning blocks 602 restricted by limiting grooves 601 to approach each other through multiple connecting rods 603, and multiple positioning blocks 602 can fix the bearing in the middle position of workbench 1.

As shown in FIG. 1 and FIG. 3 , a material ejecting assembly 7 is installed on the top of the workbench 1 , and the material ejecting assembly 7 and the fixing assembly 6 are arranged in a staggered manner.

The material lifting assembly 7 includes a screw rod 701 rotatably connected to one side of the top outer wall of the workbench 1, the screw rod 701 is threadedly connected to a holding rack 702, a plurality of positioning blocks 602 are respectively located in the holding rack 702, a limiting rod 704 is fixedly connected to the other side of the top outer wall of the workbench 1, the holding rack 702 is slidably sleeved in the limiting rod 704, a motor 703 is fixedly installed on one side of the top outer wall of the workbench 1, and the output end of the motor 703 and one end of the screw rod 701 are coaxially fixed.

A control button 705 is fixedly mounted on the top outer wall of the workbench 1 . The control button 705 is located at one end of one of the limiting grooves 601 , and one of the positioning blocks 602 can contact the control button 705 .

When the positioning block 602 moves to the end of the limit slot 601, one of the positioning blocks 602 will press on the outside of the control button 705, and the control button 705 controls the motor 2 703 to start, and the motor 2 703 drives the screw 2 701 to rotate. The holding rack 702 restricted by the limit rod 704 and the screw 2 701 will move upward under the drive of the screw 2 701, and then the bearing will also move up with the holding rack 702. Since the gap of the holding rack 702 is larger, it will be easier to take the bearing.

As shown in Figures 1 and 2, a vertical plate 2 is fixedly connected to one side of the top outer wall of the workbench 1, a hydraulic cylinder 3 is fixedly installed on the top of the vertical plate 2, a hydraulic cylinder 2 4 is fixedly installed on the output end of the hydraulic cylinder 1 3, a dial indicator 5 is fixedly installed on the output end of the hydraulic cylinder 2 4, and the hydraulic cylinder 1 3 is located in the middle position of the fixed component 6.

Start the hydraulic cylinder 1 3 on the top of the vertical plate 2, and the hydraulic cylinder 1 3 drives the hydraulic cylinder 2 4 to approach the bearing. The hydraulic cylinder 2 4 drives the dial indicator 5 to fit the inner ring of the bearing, so that the axial clearance can be detected.

As shown in FIG. 1 , the plurality of positioning blocks 602 are all arranged in an arc shape, and the outer walls of the plurality of positioning blocks 602 close to each other are all provided with rubber gaskets, which can increase the static friction between the positioning blocks 602 and the bearings, thereby facilitating an increase in the fixing effect.

As shown in FIG. 3 and FIG. 4 , the lead angle of the thread lines of screw rod 1 605 and screw rod 2 701 is smaller than the equivalent friction angle, so that the two have self-locking properties, thereby ensuring that the adjusted positions of the positioning block 602 and the receiving rack 702 will not change arbitrarily.

The utility model provides a wheel hub bearing axial clearance detection device, the specific working principle is as follows:

When the device is working, the bearing to be tested is placed on the top of the storage rack 702, and then the motor 606 fixed at the bottom of the workbench 1 is started. The motor 606 drives the screw rod 605 to rotate. Because the connecting rod 603 is restricted by the positioning block 602, the connecting ring 604 is connected to multiple connecting rods 603, so the position of the connecting ring 604 is also restricted and can only move up and down. The rotation of the screw rod 605 can drive the connecting ring 604 to move downward. The connecting ring 604 can drive multiple positioning blocks 602 restricted by the limit groove 601 to approach each other through multiple connecting rods 603. Multiple positioning blocks 602 can fix the bearing in the middle position of the workbench 1, and then the hydraulic cylinder 3 on the top of the vertical plate 2 is started. The hydraulic cylinder 3 drives the hydraulic cylinder 2 4 approaches the bearing, and the dial indicator 5 is driven by the hydraulic cylinder 2 4 to fit the inner ring of the bearing, so that the axial clearance can be detected. After the work is completed, the fixing component 6 drives multiple positioning blocks 602 to move away from each other. When the positioning block 602 moves to the end of the limit groove 601, one of the positioning blocks 602 will press on the outside of the control button 705, and the control button 705 controls the motor 2 703 to start, and the motor 2 703 drives the screw rod 2 701 to rotate. The holding rack 702 restricted by the limit rod 704 and the screw rod 2 701 will move upward under the drive of the screw rod 2 701, and then the bearing will also move upward with the holding rack 702. Since the gap of the holding rack 702 is large, it is easier to take the bearing.

Although the 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 (7)

1. The utility model provides a wheel hub bearing axial play detection device, includes workstation (1), its characterized in that: the utility model discloses a workbench, including workstation (1), fixed subassembly (6) are installed to workstation (1) mid-mounting, fixed subassembly (6) are including a plurality of equidistance spacing groove (601) that workstation (1) middle part was seted up, a plurality of spacing groove (601) are whole to be circular distribution, a plurality of equal sliding connection in spacing groove (601) has a locating piece (602), a plurality of locating piece (602) bottom is all rotated and is connected with a connecting rod (603), a plurality of connecting rod (603) bottom one end is rotated and is connected with same go-between (604), workstation (1) bottom outer wall middle part is rotated and is connected with lead screw one (605), go-between (604) threaded connection is outside lead screw one (605), workstation (1) bottom outer wall fixed mounting has motor one (606), motor one (606) pivot and lead screw one (605) one end coaxial fixation.

2. A wheel hub bearing axial play detection apparatus as claimed in claim 1, wherein: the top of the workbench (1) is provided with a material ejection assembly (7), and the material ejection assembly (7) and the fixing assembly (6) are arranged in a staggered mode.

3. A wheel hub bearing axial play detection apparatus as claimed in claim 2, wherein: the material ejection assembly (7) comprises a second screw rod (701) which is rotationally connected to one side of the outer wall of the top of the workbench (1), the second screw rod (701) is in threaded connection with a containing frame (702), a plurality of locating blocks (602) are respectively located in the middle of the containing frame (702), a limiting rod (704) is fixedly connected to the other side of the outer wall of the top of the workbench (1), the containing frame (702) is slidably sleeved in the middle of the limiting rod (704), a second motor (703) is fixedly arranged on one side of the outer wall of the top of the workbench (1), and the output end of the second motor (703) and one end of the second screw rod (701) are coaxially fixed.

4. A wheel hub bearing axial play detection apparatus according to claim 3, characterized in that: the control button (705) is fixedly arranged on the outer wall of the top of the workbench (1), the control button (705) is positioned at one end of one of the limiting grooves (601), and one of the positioning blocks (602) can be in contact with the control button (705).

5. A wheel hub bearing axial play detection apparatus as claimed in claim 1, wherein: the workbench is characterized in that a vertical plate (2) is fixedly connected to one side of the outer wall of the top of the workbench (1), a first hydraulic cylinder (3) is fixedly arranged at the top of the vertical plate (2), a second hydraulic cylinder (4) is fixedly arranged at the output end of the first hydraulic cylinder (3), a dial indicator (5) is fixedly arranged at the output end of the second hydraulic cylinder (4), and the first hydraulic cylinder (3) is located at the middle position of a fixing assembly (6).

6. A wheel hub bearing axial play detection apparatus as claimed in claim 1, wherein: the positioning blocks (602) are all arranged in an arc shape, and rubber gaskets are arranged on the outer walls of the positioning blocks (602) close to each other.

7. A wheel hub bearing axial play detection apparatus according to claim 3, characterized in that: the lead screw one (605) and the lead screw two (701) are provided with threads with lead angles smaller than equivalent friction angles.