Low-noise tapered roller bearing surface treatment device

Abstract

The invention relates to the technical field of grinding devices, in particular to a low-noise tapered roller bearing surface treatment device. The low-noise tapered roller bearing surface treatment device comprises a grinding mechanism and a driving wheel mechanism, the driving wheel mechanism comprises a driving wheel, and the grinding mechanism comprises a plurality of grinding wheels and a plurality of connecting assemblies. Along with movement of the workpiece, the grinding wheel and the driving wheel are gradually away from each other, the workpiece gradually moves downwards, the workpiece is not prone to jumping gradually, the stability of the workpiece is gradually improved, and therefore the grinding efficiency of the workpiece is gradually improved. When the workpiece tends to be stuck, the workpiece pushes the grinding wheel to move in the direction away from the driving wheel, and the workpiece can be prevented from being stuck. The invention provides a low-noise surface treatment device for a tapered roller bearing to solve the problem that in the using process of an existing grinding device, due to different roundness of workpieces, ultra-grinding or jamming can occur.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, and in particular to a low-noise tapered roller bearing surface treatment device. Background Art

[0002] The grinding device is a kind of precision machining equipment, which is mainly used for grinding the workpiece surface with high precision and high surface quality. The low-noise tapered roller bearing surface treatment device is a special equipment used to reduce the noise generated by the tapered roller bearing during operation. The device uses a variety of technologies and methods to treat the bearing surface to achieve the purpose of reducing noise. In the prior art, the grinding of the bearing plane usually uses a flat grinding device, and the circumferential part usually uses a centerless grinding device. The centerless grinding device is a type of machine tool that does not require the axis positioning of the workpiece to perform grinding work. The centerless grinding equipment is mainly composed of three mechanisms: a grinding wheel, an adjusting wheel, and a workpiece holder. The grinding wheel is responsible for the actual grinding work, the adjusting wheel controls the rotation of the workpiece and determines its feed speed, and the workpiece holder supports the workpiece during grinding.

[0003] For example, the Chinese invention patent with the announcement number CN117340701B provides a centerless grinder for bearing processing, which can efficiently and conveniently install multiple bearing rings in batches on the variable diameter support wheel frame through the variable diameter support wheel frame, and can also ensure that multiple bearing rings are not easily deformed during centerless grinding. However, during the use of this device, the different roundness of the workpiece will have a great impact on the grinding process, and over-grinding or jamming may occur. Summary of the invention

[0004] The invention provides a low-noise tapered roller bearing surface treatment device to solve the problem of over-grinding or jamming due to different roundness of workpieces in the use of the existing grinding device.

[0005] A low-noise tapered roller bearing surface treatment device of the present invention adopts the following technical solution: A low-noise tapered roller bearing surface treatment device comprises a frame, a grinding mechanism and a moving wheel mechanism. The grinding mechanism and the moving wheel mechanism are sequentially arranged on the frame along a first direction. The moving wheel mechanism comprises a driving wheel, the axis of the driving wheel is arranged along a second direction, and the driving wheel can be rotatably arranged on the frame around its own axis, the second direction and the first direction are both horizontal directions, and the second direction is perpendicular to the first direction. The two sides of the frame along the second direction are respectively a first side and a second side.

[0006] The grinding mechanism includes a plurality of grinding wheels and a plurality of connecting components. The axis of the grinding wheel is arranged along the second direction, and the grinding wheel can be arranged on the frame so as to rotate around its own axis, and the plurality of grinding wheels are distributed in sequence along the second direction. Along the direction from the first side to the second side, the plurality of grinding wheels gradually move away from the driving wheel. Each connecting component is arranged between two adjacent grinding wheels, and the plurality of connecting components enable the plurality of grinding wheels to rotate synchronously, and the plurality of grinding wheels can move relative to each other. The workpiece is placed between the grinding wheel and the driving wheel, and the workpiece moves from the first side of the frame to the second side of the frame. Each grinding wheel can move along the first direction away from the driving wheel after being squeezed by the workpiece.

[0007] Furthermore, the grinding wheel closest to the first side of the frame is the first connecting wheel, the grinding wheel closest to the second side of the frame is the second connecting wheel, and the other grinding wheels are the third connecting wheels. The grinding mechanism also includes a first drive motor, which is fixedly arranged on the frame, and the output shaft of the first drive motor is connected to the second connecting wheel.

[0008] Further, along the direction from the first side to the second side of the frame, the two sides of the third connecting wheel are the third side and the fourth side in sequence. Three first hinged rods are respectively arranged on one side of the first connecting wheel close to the second side of the frame and on the fourth side of each third connecting wheel, the three first hinged rods are sequentially distributed along the circumference of the grinding wheel, and the first hinged rods are arranged along the second direction. Three second hinged rods are respectively arranged on one side of the second connecting wheel close to the first side of the frame and on the third side of each third connecting wheel, the three second hinged rods are sequentially distributed along the circumference of the grinding wheel, and the second hinged rods are arranged along the second direction.

[0009] Each connecting assembly includes a rotating frame, a first connecting unit, and a second connecting unit. Three third hinged rods are rotatably arranged on the rotating frame, and the three third hinged rods are sequentially distributed along the circumference of the rotating frame, and each third hinged rod is arranged along the second direction. The first connecting unit includes three first connecting rods, one end of each first connecting rod is rotatably arranged on a third hinged rod, and is located on the side of the rotating frame close to the fourth side of the grinding wheel, and the other end of each second connecting rod is rotatably arranged on a first hinged rod. The second connecting unit includes three second connecting rods, one end of each second connecting rod is rotatably arranged on a third hinged rod, and is located on the side of the rotating frame close to the third side of the grinding wheel, and the other end of each second connecting rod is rotatably arranged on a second hinged rod.

[0010] Furthermore, the grinding mechanism further comprises a plurality of connecting frames, which are sequentially distributed along the second direction. The connecting frames can be slidably arranged on the frame along the second direction, and each grinding wheel is arranged on a connecting frame. A plurality of supporting wheels are rotatably arranged on each connecting frame, and the axis of the supporting wheel is arranged along the second direction. The plurality of supporting wheels are sequentially distributed along the circumference of the grinding wheel, and the supporting wheels and the grinding wheel are against each other.

[0011] Furthermore, the grinding mechanism also includes a plurality of cylinders, which are fixedly mounted on the frame and arranged along the first direction. An elastic member is fixedly mounted on the extended end of each cylinder, and each elastic member is fixedly connected to a connecting frame.

[0012] Furthermore, a low-noise tapered roller bearing surface treatment device also includes a support mechanism, and a plurality of workpieces are sequentially distributed on the support mechanism along the second direction. The support mechanism includes a first support frame and two second support frames. The first support frame and the second support frame are both fixedly arranged on the frame. The two second support frames are sequentially distributed along the second direction, and the first support frame is arranged between the two second support frames.

[0013] The first support frame includes a first support plate, the upper side of the first support plate is stepped, and the height of the stepped first support plate gradually decreases along the direction from the first side to the second side of the frame. Each second support frame includes a second support plate and two limit plates, the limit plates are arranged along the second direction, the two limit plates are sequentially distributed along the first direction, and along the direction from the first side to the second side of the frame, the second support plate is inclined, and the second support plate gradually approaches the lower side of the frame. The second support plate is between the two limit plates, and the workpiece is above the first support plate or the second support plate.

[0014] Furthermore, the frame includes a base frame and a movable frame, the base frame is arranged on the ground, and the connecting frame is arranged on the base frame. The movable frame is arranged on the base frame slidably along a first direction. The driving wheel is rotatably arranged on the movable frame, and the supporting mechanism is fixedly arranged on the movable frame.

[0015] Furthermore, the movable frame includes a first movable plate and a second movable plate, the first movable plate is slidably arranged above the second movable plate along a first direction, the support mechanism is fixedly arranged on the second movable plate, and the driving wheel is rotatably arranged on the first movable frame.

[0016] Furthermore, a low-noise tapered roller bearing surface treatment device also includes a first hydraulic cylinder and a second hydraulic cylinder, both of which are arranged along a first direction, the first hydraulic cylinder is fixedly arranged on the second movable plate, and the extension end of the first hydraulic cylinder is fixedly connected to the first movable plate. The second hydraulic cylinder is fixedly arranged on the base frame, and the extension end of the second hydraulic cylinder is fixedly connected to the second movable frame.

[0017] Furthermore, the driving wheel mechanism also includes a second driving mechanism, the second driving mechanism includes a second driving motor, the second driving motor is fixedly arranged on the movable frame, and the output shaft of the second driving motor is connected to the driving wheel.

[0018] The beneficial effects of the present invention are as follows: a low-noise tapered roller bearing surface treatment device of the present invention places the workpiece between the grinding wheel and the driving wheel through the provided grinding mechanism and the driving wheel mechanism, and pushes the workpiece from the first side of the frame to the second side of the frame. The grinding wheel and the driving wheel rotate, and drive the workpiece to rotate, and the grinding wheel grinds the workpiece. The workpiece first abuts against the grinding wheel close to the first side of the frame. Since the linear distance between the grinding wheel and the driving wheel is small, the center height of the workpiece is large, and the center height is the vertical distance between the center of the workpiece and the line connecting the center of the first connecting wheel and the driving wheel.

[0019] Although the ovality of the workpiece is large, making it easy for the workpiece to bounce, the workpiece is not easy to be stuck because the center height of the workpiece is large at this time, so the first connecting wheel reduces the ovality of the workpiece and the grinding efficiency is also low. Since the multiple grinding wheels gradually move away from the driving wheel along the direction from the first side to the second side. Therefore, as the workpiece moves, the grinding wheel and the driving wheel gradually move away from each other, the workpiece gradually moves downward, the center height of the workpiece gradually decreases, the workpiece gradually becomes less likely to bounce, the stability of the workpiece gradually increases, and the grinding efficiency of the workpiece gradually increases.

[0020] However, when the center height is gradually reduced, the workpiece is likely to jam the grinding wheel, thereby causing damage to the grinding wheel, the drive wheel and the workpiece. By providing a grinding wheel that can move along the first direction, when the workpiece tends to be jammed, the workpiece pushes the grinding wheel to move away from the drive wheel, thereby preventing the workpiece from being jammed. And by gradually reducing the center height of the workpiece, the workpiece is gradually ground to prevent over-grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 A schematic structural diagram of a low-noise tapered roller bearing surface treatment device provided by an embodiment of the present invention; Figure 2 A top view of a low-noise tapered roller bearing surface treatment device provided by an embodiment of the present invention; Figure 3 for Figure 2 The enlarged view of point A in the middle; Figure 4 A cross-sectional view of a low-noise tapered roller bearing surface treatment device provided by an embodiment of the present invention; Figure 5 for Figure 4The enlarged view of point B in the middle; Figure 6 A schematic structural diagram of a grinding wheel mechanism of a low-noise tapered roller bearing surface treatment device provided by an embodiment of the present invention; Figure 7 An exploded view of a grinding wheel mechanism of a low-noise tapered roller bearing surface treatment device provided in an embodiment of the present invention.

[0023] In the figure: 100, frame; 110, first drive motor; 120, base frame; 130, movable frame; 131, first movable plate; 132, second movable plate; 140, first hydraulic cylinder; 150, second drive motor; 200, drive wheel; 300, grinding wheel; 301, first connecting wheel; 302, second connecting wheel; 303, third connecting wheel; 310, first hinged rod; 320, third hinged rod; 330, first connecting rod; 340, second connecting rod; 350, rotating frame; 360, connecting frame; 361, supporting wheel; 362, cylinder; 410, second supporting frame; 411, second supporting plate; 412, limit plate; 500, workpiece. DETAILED DESCRIPTION

[0024] 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.

[0025] Reference Figures 1 to 7 As shown, a low-noise tapered roller bearing surface treatment device provided by an embodiment of the present invention includes a frame 100, a grinding mechanism and a moving wheel mechanism. The grinding mechanism and the moving wheel mechanism are sequentially arranged on the frame 100 along a first direction. The moving wheel mechanism includes a driving wheel 200, the axis of which is arranged along a second direction, and the driving wheel 200 is rotatably arranged on the frame 100 around its own axis. The second direction and the first direction are both horizontal directions, and the second direction is perpendicular to the first direction. The two sides of the frame 100 along the second direction are respectively a first side and a second side.

[0026] The grinding mechanism includes a plurality of grinding wheels 300 and a plurality of connecting assemblies. The axis of the grinding wheel 300 is arranged along the second direction, and the grinding wheel 300 can be rotatably arranged on the frame 100 around its own axis, and the plurality of grinding wheels 300 are sequentially distributed along the second direction. Along the direction from the first side to the second side, the plurality of grinding wheels 300 gradually move away from the driving wheel 200. Each connecting assembly is arranged between two adjacent grinding wheels 300, and the plurality of connecting assemblies enable the plurality of grinding wheels 300 to rotate synchronously, and the plurality of grinding wheels 300 can move relative to each other. The workpiece 500 is placed between the grinding wheel 300 and the driving wheel 200, and the workpiece 500 moves from the first side of the frame 100 to the second side of the frame 100. After being squeezed by the workpiece 500, each grinding wheel 300 can move along the first direction in a direction away from the driving wheel 200.

[0027] The workpiece 500 is placed between the grinding wheel 300 and the driving wheel 200, and the workpiece 500 is pushed to move from the first side of the frame 100 to the second side of the frame 100. The grinding wheel 300 and the driving wheel 200 rotate, and drive the workpiece 500 to rotate, and the grinding wheel 300 grinds the workpiece 500. The vertical distance between the center of the workpiece 500 and the center line connecting the first connecting wheel 301 and the driving wheel 200 is set as the center height H. The workpiece 500 first abuts against the grinding wheel 300 close to the first side of the frame 100. Since the linear distance between the grinding wheel 300 and the driving wheel 200 is small, the center height H of the workpiece 500 is large.

[0028] Although the ovality of the workpiece 500 is large, making the workpiece 500 prone to jumping, the workpiece 500 is not easy to be stuck because the center height of the workpiece 500 is large at this time. The first connecting wheel 301 reduces the ovality of the workpiece 500 and the grinding efficiency is also low. Since the plurality of grinding wheels 300 gradually move away from the driving wheel 200 along the direction from the first side to the second side. Therefore, as the workpiece 500 moves, the grinding wheel 300 and the driving wheel 200 gradually move away from each other, the workpiece 500 gradually moves downward, the center height H of the workpiece 500 gradually decreases, the workpiece 500 gradually becomes less prone to jumping, the stability of the workpiece 500 gradually increases, and the grinding efficiency of the workpiece 500 also gradually increases.

[0029] However, when the center height H is gradually reduced, the workpiece 500 is likely to jam the grinding wheel 300, thereby causing damage to the grinding wheel 300, the driving wheel 200 and the workpiece 500. By providing a grinding wheel 300 that can move along the first direction, when the workpiece 500 tends to be jammed, the workpiece 500 pushes the grinding wheel 300 to move away from the driving wheel 200, thereby preventing the workpiece 500 from being jammed. And by gradually reducing the center degree of the workpiece 500, the workpiece 500 is gradually ground to prevent over-grinding.

[0030] In this embodiment, the grinding wheel 300 closest to the first side of the frame 100 is the first connecting wheel 301, the grinding wheel 300 closest to the second side of the frame 100 is the second connecting wheel 302, and the other grinding wheels 300 are the third connecting wheels 303. The grinding mechanism also includes a first drive motor 110, which is fixedly disposed on the frame 100, and the output shaft of the first drive motor 110 is fixedly connected to the second connecting wheel 302. The first drive motor 110 drives the second connecting wheel 302 to rotate, and drives the first connecting wheel 301 and the plurality of third connecting wheels 303 to rotate synchronously through the connecting assembly.

[0031] The mesh sizes of the multiple grinding wheels 300 are all the same. As the center height H of the workpiece 500 gradually decreases, the workpiece 500 becomes less likely to jump, the stability of the workpiece 500 gradually increases, and the grinding efficiency of the workpiece 500 also gradually improves.

[0032] In other embodiments, along the direction from the first side to the second side of the frame 100, the plurality of grinding wheels 300 are equally divided into two parts, wherein the grinding wheel 300 of the first connecting wheel 301 is used for rough grinding of the workpiece 500, and the last grinding wheel 300 of the second connecting wheel 302 is used for fine grinding of the workpiece 500. The mesh number of the grinding wheel 300 for fine grinding is greater than the mesh number of the grinding wheel 300 for rough grinding.

[0033] The workpiece 500 first abuts against the first connecting wheel 301. This is the rough grinding stage. The first connecting wheel 301 has a greater grinding depth and feed rate for the workpiece 500. During grinding, the ovality of the workpiece 500 is easier to improve than the roundness of the edges. Therefore, during rough grinding, a higher center height H is used to improve the roundness of the edges. At the same time, the workpiece 500 is not easily stuck. At this time, the ovality of the workpiece 500 changes less. Then the workpiece 500 enters the fine grinding stage. At this time, the center height H of the workpiece 500 is smaller than the center height H during rough grinding. The main purpose is to improve the ovality, while further improving the roundness of the edges and improving the accuracy of the workpiece 500.

[0034] In this embodiment, along the direction from the first side to the second side of the frame 100, the two sides of the third connecting wheel 303 are the third side and the fourth side in sequence. Three first hinged rods 310 are respectively provided on one side of the first connecting wheel 301 close to the second side of the frame 100 and on the fourth side of each third connecting wheel 303. The three first hinged rods 310 are sequentially distributed along the circumference of the grinding wheel 300, and the first hinged rods 310 are arranged along the second direction. Three second hinged rods are respectively provided on one side of the second connecting wheel 302 close to the first side of the frame 100 and on the third side of each third connecting wheel 303. The three second hinged rods are sequentially distributed along the circumference of the grinding wheel 300, and the second hinged rods are arranged along the second direction.

[0035] Each connection assembly includes a rotating frame 350, a first connection unit and a second connection unit. Three third hinge rods 320 are rotatably arranged on the rotating frame 350, and the three third hinge rods 320 are sequentially distributed along the circumference of the rotating frame 350, and each third hinge rod 320 is arranged along the second direction.

[0036] The first connection unit includes three first connection rods 330, one end of each first connection rod 330 is rotatably disposed on a third hinge rod 320 and is located on a side of the rotating frame 350 close to the fourth side of the grinding wheel 300, and the other end of each second connection rod 340 is rotatably disposed on a first hinge rod 310. The second connection unit includes three second connection rods 340, one end of each second connection rod 340 is rotatably disposed on a third hinge rod 320 and is located on a side of the rotating frame 350 close to the third side of the grinding wheel 300, and the other end of each second connection rod 340 is rotatably disposed on a second hinge rod.

[0037] In this embodiment, the grinding mechanism further includes a plurality of connecting frames 360, and the plurality of connecting frames 360 are sequentially distributed along the second direction. The connecting frames 360 can be slidably arranged on the frame 100 along the second direction, and each grinding wheel 300 is arranged on one connecting frame 360. A plurality of supporting wheels 361 are rotatably arranged on each connecting frame 360, and the axis of the supporting wheel 361 is arranged along the second direction. The plurality of supporting wheels 361 are sequentially distributed along the circumference of the grinding wheel 300, and the supporting wheels 361 and the grinding wheel 300 are abutted against each other, so that the grinding wheel 300 can rotate freely on the connecting frame 360.

[0038] In this embodiment, the grinding mechanism also includes multiple cylinders 362, which are fixedly mounted on the frame 100. The cylinders 362 are arranged along the first direction. An elastic member is fixedly mounted on the extended end of each cylinder 362, and each elastic member is fixedly connected to a connecting frame 360.

[0039] By means of the elastic member, when the workpiece 500 tends to be stuck, the elastic member is compressed, and the connecting frame 360 ​​moves away from the workpiece 500, thereby preventing the workpiece 500 from being stuck. Then, under the action of the elastic member, the connecting frame 360 ​​can be reset. And by means of the multiple connecting assemblies, when grinding multiple workpieces 500, the multiple grinding wheels 300 can slide against each other without interfering with each other, thereby improving the applicability of the grinding wheels 300.

[0040] In this embodiment, a low-noise tapered roller bearing surface treatment device further includes a support mechanism, and a plurality of workpieces 500 are sequentially distributed on the support mechanism along the second direction. The support mechanism includes a first support frame and two second support frames 410. The first support frame and the second support frame 410 are both fixedly arranged on the frame 100. The two second support frames 410 are sequentially distributed along the second direction, and the first support frame is arranged between the two second support frames 410. The first support frame includes a first support plate, and the upper side surface of the first support plate is stepped, and the height of the stepped first support plate gradually decreases along the direction from the first side to the second side of the frame 100.

[0041] Each second support frame 410 includes a second support plate 411 and two limiting plates 412, the limiting plates 412 are arranged along the second direction, the two limiting plates 412 are sequentially distributed along the first direction, and the second support plate 411 is inclined along the direction from the first side to the second side of the frame 100, and the second support plate 411 gradually approaches the lower side of the frame 100. The second support plate 411 is between the two limiting plates 412, and the workpiece 500 is above the first support plate or the second support plate 411, and the limiting plates 412 are used to limit the workpiece 500.

[0042] When the workpiece 500 moves from the second support plate 411 on the first side close to the frame 100 to the first support plate, the workpiece 500 begins to contact the grinding wheel 300 .

[0043] Since the upper side of the first support plate is in a stepped shape, and the height of the stepped first support plate gradually decreases along the direction from the first side to the second side of the frame 100, so as to adapt to the workpiece 500 that is continuously moving downward. When the workpiece 500 moves from one grinding wheel 300 to the next grinding wheel 300, the workpiece 500 always abuts against the driving wheel 200, so when the workpiece 500 moves downward, the workpiece 500 gradually moves downward along the circumference of the driving wheel 200, and the driving wheel 200 forms a buffer for the workpiece 500, which helps to reduce the impact force of the workpiece 500 falling on the stepped first support plate when it moves downward.

[0044] In this embodiment, the frame 100 includes a base frame 120 and a movable frame 130, the base frame 120 is disposed on the ground, and the connecting frame 360 ​​is disposed on the base frame 120. The movable frame 130 is slidably disposed on the base frame 120 along a first direction. The driving wheel 200 is rotatably disposed on the movable frame 130, and the supporting mechanism is fixedly disposed on the movable frame 130.

[0045] In this embodiment, the movable frame 130 includes a first movable plate 131 and a second movable plate 132. The first movable plate 131 is slidably disposed above the second movable plate 132 along a first direction. The support mechanism is fixedly disposed on the second movable plate 132. The driving wheel 200 is rotatably disposed on the first movable frame 130.

[0046] In this embodiment, a low-noise tapered roller bearing surface treatment device further includes a first hydraulic cylinder 140 and a second hydraulic cylinder, both of which are arranged along the first direction, the first hydraulic cylinder 140 is fixedly arranged on the second movable plate 132, and the extended end of the first hydraulic cylinder 140 is fixedly connected to the first movable plate 131. The second hydraulic cylinder is fixedly arranged on the base frame 120, and the extended end of the second hydraulic cylinder is fixedly connected to the second movable frame 130.

[0047] First, the second hydraulic cylinder is started, and the second hydraulic cylinder drives the second movable plate 132 and the first movable plate 131 to move synchronously, and the support mechanism is moved to the specified position, and then the first hydraulic cylinder 140 is started, so that the first movable plate 131 moves relative to the second movable plate 132, and the first movable plate 131 drives the driving wheel 200 to move synchronously until the driving wheel 200 is moved to the specified position, so that when the workpiece 500 is placed on the support mechanism, the workpiece 500 can be against the driving wheel 200 and the grinding wheel 300. At the same time, a low-noise tapered roller bearing surface treatment device can grind workpieces 500 of different diameters, and has stronger applicability.

[0048] In this embodiment, the driving wheel mechanism further includes a second driving mechanism, which includes a second driving motor 150 . The second driving motor 150 is fixedly disposed on the movable frame 130 , and an output shaft of the second driving motor 150 is connected to the driving wheel 200 .

[0049] Working process: First, start the second hydraulic cylinder, which drives the second movable plate 132 and the first movable plate 131 to move synchronously, and move the supporting mechanism to the specified position. Then start the first hydraulic cylinder 140, so that the first movable plate 131 moves relative to the second movable plate 132, and the first movable plate 131 drives the driving wheel 200 to move synchronously until the driving wheel 200 is moved to the specified position.

[0050] Then, a plurality of workpieces 500 are placed on the second support frame 410 on the first side of the frame 100 , and the two limiting plates 412 on the second support frame 410 abut against the workpieces 500 to prevent the workpieces 500 from being separated from the second support frame 410 .

[0051] At this time, the grinding wheel 300 and the driving wheel 200 are both against the workpiece 500, and the workpiece 500 is continuously placed on the second support frame 410. Since the second support plate 411 is inclined and the workpiece 500 is continuously transported to the second support frame 410, the workpiece 500 moves on the support mechanism along the direction from the first side to the second side of the frame 100.

[0052] When the workpiece 500 moves from the second support plate 411 on the first side close to the frame 100 to the first support plate, the workpiece 500 begins to contact the grinding wheel 300. The first drive motor 110 and the second drive motor 150 are started, and the first drive motor 110 drives the second connecting wheel 302 to rotate in the forward direction, and drives the multiple grinding wheels 300 to rotate synchronously through multiple connecting components. The second drive motor 150 drives the driving wheel 200 to rotate in the forward direction. The grinding wheel 300 and the driving wheel 200 have the same rotation direction. When the grinding wheel 300 and the driving wheel 200 rotate, they drive the workpiece 500 to rotate in the opposite direction, and the grinding wheel 300 starts to grind the workpiece 500.

[0053] The vertical distance between the center of the workpiece 500 and the center line of the first connecting wheel 301 and the driving wheel 200 is set as the center height H. The workpiece 500 first abuts against the first connecting wheel 301. Since the linear distance between the first connecting wheel 301 and the driving wheel 200 is small, the center height H of the workpiece 500 is large.

[0054] Although the ovality of the workpiece 500 is large, making it easy for the workpiece 500 to bounce, the workpiece 500 is not easily stuck because the center height of the workpiece 500 is large. The first connecting wheel 301 grinds the workpiece 500. When the center height H is large, the workpiece 500 is easy to bounce on the grinding wheel 300, so the first connecting wheel 301 reduces the ovality of the workpiece 500 and the grinding efficiency is also low.

[0055] After that, the workpiece 500 comes to the second connecting wheel 302, and the workpiece 500 moves downward, and the center height H of the workpiece 500 at the second connecting wheel 302 is smaller than the center height H of the workpiece 500 at the first connecting wheel 301. When the center height H gradually decreases, the workpiece 500 is less likely to jump, and the stability of the workpiece 500 gradually increases, so the grinding efficiency of the workpiece 500 is gradually improved.

[0056] However, when the center height H is gradually reduced, the workpiece 500 is likely to jam the grinding wheel 300, thereby causing damage to the grinding wheel 300, the driving wheel 200 and the workpiece 500. By providing the elastic member, when the workpiece 500 tends to be jammed, the elastic member is compressed, and the connecting frame 360 ​​moves away from the workpiece 500, which helps to prevent the workpiece 500 from being jammed. And by gradually reducing the center degree of the workpiece 500, the workpiece 500 is gradually ground to prevent over-grinding.

[0057] By setting up multiple connecting components, multiple grinding wheels 300 can rotate simultaneously and move relatively, so that when the grinding mechanism is grinding multiple workpieces 500, the multiple grinding wheels 300 can slide against each other without interfering with each other, thereby improving the applicability of the grinding wheels 300.

[0058] When the workpiece 500 moves from one grinding wheel 300 to the next grinding wheel 300, the workpiece 500 is always against the driving wheel 200. Therefore, when the workpiece 500 moves downward, the workpiece 500 gradually moves downward along the circumference of the driving wheel 200. The driving wheel 200 forms a buffer for the workpiece 500, which helps to reduce the impact force of the workpiece 500 falling on the stepped first support plate when it moves downward.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-noise tapered roller bearing surface treatment device, characterized in that: The invention comprises a frame, a grinding mechanism and a moving wheel mechanism; the grinding mechanism and the moving wheel mechanism are sequentially arranged on the frame along a first direction; the moving wheel mechanism comprises a driving wheel, the axis of the driving wheel is arranged along a second direction, the driving wheel is rotatably arranged on the frame around its own axis, the second direction and the first direction are both horizontal directions, and the second direction is perpendicular to the first direction; the two sides of the frame along the second direction are respectively a first side and a second side; The grinding mechanism includes multiple grinding wheels and multiple connecting components; the axis of the grinding wheel is arranged along the second direction, the grinding wheel can be rotatably arranged on the frame around its own axis, and the multiple grinding wheels are distributed in sequence along the second direction; along the direction from the first side to the second side, the multiple grinding wheels gradually move away from the driving wheel; each connecting component is arranged between two adjacent grinding wheels, and the multiple connecting components enable the multiple grinding wheels to rotate synchronously, and the multiple grinding wheels can move relative to each other; the workpiece is placed between the grinding wheel and the driving wheel, and the workpiece moves from the first side of the frame to the second side of the frame; each grinding wheel can move along the first direction away from the driving wheel after being squeezed by the workpiece.

2. A low-noise tapered roller bearing surface treatment device according to claim 1, characterized in that: The grinding wheel on the first side closest to the frame is the first connecting wheel, the grinding wheel on the second side closest to the frame is the second connecting wheel, and the other grinding wheels are the third connecting wheels; the grinding mechanism also includes a first drive motor, which is fixedly arranged on the frame, and the output shaft of the first drive motor is connected to the second connecting wheel.

3. A low-noise tapered roller bearing surface treatment device according to claim 2, characterized in that: Along the direction from the first side to the second side of the frame, the two sides of the third connecting wheel are the third side and the fourth side in sequence; three first hinged rods are respectively arranged on one side of the first connecting wheel close to the second side of the frame and on the fourth side of each third connecting wheel, the three first hinged rods are sequentially distributed along the circumference of the grinding wheel, and the first hinged rods are arranged along the second direction; three second hinged rods are respectively arranged on one side of the second connecting wheel close to the first side of the frame and on the third side of each third connecting wheel, the three second hinged rods are sequentially distributed along the circumference of the grinding wheel, and the second hinged rods are arranged along the second direction; Each connecting assembly includes a rotating frame, a first connecting unit and a second connecting unit; three third hinged rods are rotatably arranged on the rotating frame, and the three third hinged rods are sequentially distributed along the circumference of the rotating frame, and each third hinged rod is arranged along the second direction; the first connecting unit includes three first connecting rods, one end of each first connecting rod is rotatably arranged on a third hinged rod, and is located on the side of the rotating frame close to the fourth side of the grinding wheel, and the other end of each second connecting rod is rotatably arranged on a first hinged rod; the second connecting unit includes three second connecting rods, one end of each second connecting rod is rotatably arranged on a third hinged rod, and is located on the side of the rotating frame close to the third side of the grinding wheel, and the other end of each second connecting rod is rotatably arranged on a second hinged rod.

4. A low-noise tapered roller bearing surface treatment device according to claim 3, characterized in that: The grinding mechanism also includes multiple connecting frames, which are distributed in sequence along the second direction; the connecting frames can be slidably arranged on the frame along the second direction, and each grinding wheel is arranged on a connecting frame; multiple supporting wheels are rotatably arranged on each connecting frame, and the axis of the supporting wheel is arranged along the second direction; the multiple supporting wheels are distributed in sequence along the circumference of the grinding wheel, and the supporting wheels and the grinding wheels are against each other.

5. The low-noise tapered roller bearing surface treatment device according to claim 3, characterized in that: The grinding mechanism also includes a plurality of cylinders, which are fixedly arranged on the frame and arranged along the first direction. An elastic member is fixedly arranged on the extended end of each cylinder, and each elastic member is fixedly connected to a connecting frame.

6. The low-noise tapered roller bearing surface treatment device according to claim 1, characterized in that: It also includes a support mechanism, and a plurality of workpieces are sequentially distributed on the support mechanism along the second direction; the support mechanism includes a first support frame and two second support frames; the first support frame and the second support frame are both fixedly arranged on the frame; the two second support frames are sequentially distributed along the second direction, and the first support frame is arranged between the two second support frames; The first support frame includes a first support plate, the upper side surface of the first support plate is stepped, and the height of the stepped first support plate gradually decreases along the direction from the first side to the second side of the frame; each second support frame includes a second support plate and two limit plates, the limit plates are arranged along the second direction, the two limit plates are distributed in sequence along the first direction, and the second support plate is inclined along the direction from the first side to the second side of the frame, and the second support plate gradually approaches the lower side surface of the frame; the second support plate is between the two limit plates, and the workpiece is above the first support plate or the second support plate.

7. A low-noise tapered roller bearing surface treatment device according to claim 6, characterized in that: The frame includes a base frame and a movable frame, the base frame is arranged on the ground, and the connecting frame is arranged on the base frame; the movable frame is arranged on the base frame slidably along a first direction; the driving wheel is rotatably arranged on the movable frame, and the supporting mechanism is fixedly arranged on the movable frame.

8. The low-noise tapered roller bearing surface treatment device according to claim 7, characterized in that: The movable frame comprises a first movable plate and a second movable plate, wherein the first movable plate is slidably arranged above the second movable plate along a first direction; the supporting mechanism is fixedly arranged on the second movable plate, and the driving wheel is rotatably arranged on the first movable frame.

9. A low-noise tapered roller bearing surface treatment device according to claim 8, characterized in that: It also includes a first hydraulic cylinder and a second hydraulic cylinder, both of which are arranged along the first direction, the first hydraulic cylinder is fixedly arranged on the second movable plate, and the extended end of the first hydraulic cylinder is fixedly connected to the first movable plate; the second hydraulic cylinder is fixedly arranged on the base frame, and the extended end of the second hydraulic cylinder is fixedly connected to the second movable frame.

10. The low-noise tapered roller bearing surface treatment device according to claim 6, characterized in that: The driving wheel mechanism also includes a second driving mechanism, which includes a second driving motor. The second driving motor is fixedly arranged on the movable frame, and the output shaft of the second driving motor is connected to the driving wheel.

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