Bearing seal seat removal device

Abstract

The present invention discloses a device for removing a bearing seal seat. The whole machine is composed of a frame, a positioning mechanism, a guiding and centering mechanism, and a clamping and withdrawing mechanism. The device for removing the bearing seal seat provided by the present invention can automatically perform the removal work of the bearing seal seat and has an automatic bearing positioning function. By adopting the gravity raceway feeding method, the bearing can roll into the positioning mechanism by itself. In addition, the device adopts a double-sided claw structure to realize the synchronous removal operation of the seal seats on both sides of the bearing. The innovation of the present invention lies in its efficient and automated operation process, which significantly reduces the need for manual intervention, not only improves the work efficiency, but also reduces the labor intensity of the operators. In addition, the device also has high versatility and adaptability, can adapt to bearing seal seats of various specifications and models, meets the requirements of different application scenarios, reduces the maintenance cost in long-term use, and brings significant economic benefits to users.

Description

Technical Field

[0001] The present invention relates to the technical field of railway freight car axle maintenance, and particularly to a railway freight car axle bearing maintenance device. The device can realize the automatic removal of the bearing seal seat of the axle and has an automatic bearing positioning function. By adopting the gravity raceway feeding method, the bearing can roll into the positioning mechanism by itself. In addition, the device adopts a double-sided claw structure to realize the synchronous removal operation of the seal seats on both sides of the bearing, and the maintenance process is completely automated, significantly reducing the need for manual participation, not only improving work efficiency but also reducing the labor intensity of operators. Background Art

[0002] As a major transportation channel, railways carry important transportation tasks. Railway freight cars are the carriers of railway freight transportation, and axles are important components of railway freight cars. Their technical conditions directly affect the operation safety of vehicles. The maintenance quality of railway freight car axles is particularly important. The axles work repeatedly for a long time, and the outer ring of the bearing is exposed for a long time, with a lot of dust, rust and other foreign matters attached to its surface. The inner ring, cage and rollers of the bearing also show wear and other problems due to long-term operation. When performing bearing maintenance, it is necessary to first remove the bearing seal seat from the bearing. At present, the removal operation of the railway vehicle bearing seal seat is manually carried out by workers using crowbars or other tools. This operation method not only greatly increases the labor intensity of workers, but also easily damages the workpiece. More seriously, this operation method also has potential safety hazards and easily causes work-related injuries such as bruising and bumping to workers during the operation. Therefore, it is particularly necessary to invent a bearing seal seat removal device to realize the automatic removal operation of the axle bearing seal seat and the automation of the axle production line maintenance process. Summary of the Invention

[0003] The purpose of the present invention is to provide a bearing seal seat removal device to solve the problems existing in the above-mentioned prior art, reduce the labor intensity of operators, realize the automated operation of railway freight car axle maintenance, and further improve the maintenance quality and efficiency of railway freight car axles.

[0004] To achieve the above purpose, the present invention provides the following solutions:

[0005] A bearing seal seat removal device provided by the present invention is characterized in that the whole machine is composed of a frame (1), a positioning mechanism (2), a guiding and centering mechanism (3), and a clamping and withdrawing mechanism (4); the frame (1) is a cuboid structure welded by steel sections, and is fixedly installed on the ground foundation through brackets to support the whole device. The frame body is of an internally hollow type, and a detachable flap is inlaid on the surface, which is convenient for taking materials; the positioning mechanism (2) is installed at the center position of the frame (1), and there are two sets of the guiding and centering mechanism (3) and the clamping and withdrawing mechanism (4), and the two sets of structures are exactly the same. They are symmetrically installed on the frame (1) on both sides with the positioning mechanism (2) as the center.

[0006] Preferably, the positioning mechanism (2) is composed of a base (21), side baffles (22), tracks (23), a limit stop (24), and a check stop (25); the base (21) is installed at the center position of the frame (1), and there are two side baffles (22), and the two structures are exactly the same. They are symmetrically installed with the center of the base (21) as the axis. It is a V-shaped structure. When the bearing enters the working position, the outer side surface of the bearing contacts the inner side surface of the side baffle (22), which can slow down the axial movement of the bearing and prevent the bearing from falling out of the track (23). The track (23) is located inside the side baffle (22), and there are two tracks, and the two structures are exactly the same. Its height is lower than the height of the side baffle (22). When the bearing enters the working position, due to its V-shaped structure, it can slow down the speed of the bearing when it enters and finally stop moving, preventing the bearing from rushing out of the track (23); the limit stop (24) is a cube with a square bottom surface and a truncated corner slope structure on the upper surface. It contacts the surface of the bearing and can decelerate and prevent the bearing from overshooting. The check stop (25) is a right triangle structure and is connected to the base (21) through a pin shaft. The check stop (25) is slidably connected to the base (21). The center of gravity of its right triangle is located at its bottom. When there is no bearing in the working position, it is in the shape of a right triangle. When the bearing enters the working position, the outer ring of the bearing contacts the bevel edge of the check stop (25). The check stop (25) is stressed, and its bevel edge moves in the clockwise direction. When the bearing disengages from the bevel edge of the check stop (25), the force on it disappears, and its bevel edge moves in the counterclockwise direction until it stops moving and returns to the right triangle shape, which can prevent the rebound movement of the bearing. When the movement of the bearing stops, the bearing positioning action is completed.

[0007] Preferably, the guiding and centering mechanism (3) is composed of a lifting slide cylinder (31), a transverse slide cylinder (32), a guiding baffle (33), and a connecting seat (34); among them, there are two sets of the lifting slide cylinder (31), the transverse slide cylinder (32), and the connecting seat (34), and the two sets of structures are exactly the same. The lifting slide cylinder (31) is connected to the transverse slide cylinder (32) through the connecting seat (34). The transverse slide cylinder (32) is fixed on the guiding baffle (33) by bolts. When the lifting slide cylinder (31) acts and its piston rod extends, it drives the guiding baffle (33) to move upward. When it reaches the designated working position, the upward movement stops and its guiding action is completed. When the transverse slide cylinder (32) acts, it drives the guiding baffle (33) to perform an axial movement. When it contacts the bearing surface, the axial movement stops and the axial centering action of the bearing is completed.

[0008] Preferably, the clamping and unmounting mechanism (4) is composed of a linear guide rail (41), a baffle (42), a pressing cylinder (43), a slide base (44), an unmounting cylinder (45), a jaw cylinder (46), and jaws (47). There are two linear guide rails (41), and the two structures are exactly the same. They are installed on the frame (1). The baffle (42) is slidably connected to the linear guide rail (41) through a slider and has a U-shaped structure. The pressing cylinder (43) is located inside the linear guide rail (41) and inside the frame (1). The slide base (44) has a 90-degree splicing plate structure composed of two vertical iron plates and is fixed by two triangular gusset plates on both sides of the vertical surface, which is stable and reliable. The unmounting cylinder (45) is located inside the horizontal plane of the slide base (44), and the top of its piston rod is connected to the bottom surface of the baffle (42). The jaw cylinder (46) is fixedly installed at the center position of the vertical surface of the slide base (44). The jaws (47) are located on the surface of the jaw cylinder (46), three in total, and the three structures are exactly the same, dividing the surface of the jaw cylinder (46) into three equal parts. When the pressing cylinder (43) contracts, it drives the baffle (42) to perform an axial movement on the linear guide rail (41). When the protruding pad on the baffle (42) contacts and presses against the outer ring of the bearing, the axial movement stops. At this time, the clamping and positioning action of the outer ring of the bearing is completed. When the unmounting cylinder (45) contracts and its piston rod retracts, it drives the slide base (44) to perform an axial movement, thereby driving the jaws (47) to penetrate into the inner hole of the bearing seal seat. When the three jaws (47) contact the inner hole of the bearing seal seat and expand outward to tighten the inner hole of the seal seat, the axial movement stops. At this time, the clamping and unmounting mechanism (4) is completely concentric with the bearing center. When the unmounting cylinder (45) acts and its piston rod extends, it drives the slide base (44) and the baffle (42) to perform a relative axial movement, thereby driving the jaws (47) to separate the clamped seal seat from the bearing, and the unmounting action is completed.

[0009] The present invention has achieved the following beneficial technical effects compared with the prior art:

[0010] The object of the present invention is to provide a bearing seal seat removal device, which can automatically complete the removal of the wheel axle bearing seal seat and has an automatic bearing positioning function. By adopting the gravity raceway feeding method, the bearing can roll into the positioning mechanism by itself. In addition, the device adopts a double-sided claw structure to realize the synchronous removal operation of the seal seats on both sides of the bearing, and the maintenance process is completely automated; to solve the problems existing in the above-mentioned prior art, reduce the labor intensity of the operators, realize the automated operation of railway wheel axle maintenance, and further improve the maintenance efficiency of railway freight car wheel axles. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0012] Figure 1 It is the front view of the bearing seal seat removal device;

[0013] Figure 2 It is the front view of the positioning mechanism;

[0014] Figure 3 It is the side view of the guiding and centering mechanism;

[0015] Figure 4 It is the side view of the clamping and unmounting mechanism;

[0016] In the figure: 1 - frame, 2 - positioning mechanism, 3 - guiding and centering mechanism, 4 - clamping and unmounting mechanism; 21 - base, 22 - side baffle, 23 - track, 24 - limit stop, 25 - check stop; 31 - lifting slide table cylinder, 32 - transverse slide table cylinder, 33 - guiding baffle, 34 - connecting seat; 41 - linear guide rail, 42 - baffle, 43 - pressing cylinder, 44 - slide table base, 45 - unmounting cylinder, 46 - claw cylinder, 47 - claw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0018] Please refer to the appendix Figure 1 and 2, 3, 4. The whole machine is composed of a frame (1), a positioning mechanism (2), a guiding and centering mechanism (3), and a clamping and unloading mechanism (4). The frame (1) is a cuboid structure welded by steel sections and is fixed and installed on the ground foundation through brackets to support the whole equipment. Its frame body is of a built-in hollow type, and a detachable flap is inlaid on the outer surface to facilitate the access of materials. The positioning mechanism (2) is composed of a base (21), side baffles (22), tracks (23), a limit stop (24), and a check stop (25). The base (21) is installed at the center position of the frame (1). There are two side baffles (22), and the two are exactly the same in structure and are symmetrically installed with the center of the base (21) as the axis. It is of a V-shaped structure. When the bearing enters the working position, the outer side of the bearing contacts the inner side of the side baffle (22), which can slow down the axial movement of the bearing and prevent the bearing from falling out of the track (23). The tracks (23) are located inside the side baffles (22), and there are two in total. The two are exactly the same in structure, and their height is lower than that of the side baffles (22). When the bearing enters the working position, due to its V-shaped structure, it can slow down the speed of the bearing when it enters and finally stop moving to prevent the bearing from rushing out of the track (23). The limit stop (24) is a cube with a square bottom and a truncated-corner slope-shaped upper surface. It contacts the surface of the bearing and can decelerate and prevent the bearing from over-positioning. The check stop (25) is of a right-angled triangle structure and is connected to the base (21) through a pin shaft. The check stop (25) is slidably connected to the base (21). The center of gravity of its right-angled triangle is at its bottom. When there is no bearing in the working position, it is in the shape of a right-angled triangle. When the bearing enters the working position, the outer ring of the bearing contacts the bevel edge of the check stop (25). The check stop (25) is stressed, and its bevel edge moves in the clockwise direction. When the bearing disengages from the bevel edge of the check stop (25), the force on it disappears, and its bevel edge moves in the counterclockwise direction until it stops moving and returns to the right-angled triangle shape, which can prevent the rebound movement of the bearing. When the movement of the bearing stops, the bearing positioning action is completed. The guiding and centering mechanism (3) is composed of a lifting slide table cylinder (31), a transverse slide table cylinder (32), a guiding baffle (33), and a connecting seat (34). Among them, there are two sets of the lifting slide table cylinder (31), the transverse slide table cylinder (32), and the connecting seat (34), and the two sets are exactly the same in structure. The lifting slide table cylinder (31) is connected to the transverse slide table cylinder (32) through the connecting seat (34). The transverse slide table cylinder (32) is fixed to the guiding baffle (33) by bolts. When the lifting slide table cylinder (31) acts, its piston rod extends, and then drives the guiding baffle (33) to move upward. When it reaches the specified working position, the upward movement stops, and its guiding action is completed. When the transverse slide table cylinder (32) acts, it drives the guiding baffle (33) to move axially. When it contacts the surface of the bearing, the axial movement stops, and the axial centering action of the bearing is completed.The described clamping and unclamping mechanism (4) consists of a linear guide rail (41), a baffle plate (42), a pressing air cylinder (43), a slide base (44), an unclamping air cylinder (45), a jaw air cylinder (46), and jaws (47). There are two linear guide rails (41), and the two have exactly the same structure. They are installed on the frame (1). The baffle plate (42) is slidably connected to the linear guide rail (41) through a slider and has a U-shaped structure. The pressing air cylinder (43) is located inside the linear guide rail (41) and inside the frame (1). The slide base (44) has a 90-degree splicing plate structure composed of two vertical iron plates, and both sides of the vertical surface are fixed by two triangular gusset plates, which is stable and reliable. The unclamping air cylinder (45) is located inside the horizontal plane of the slide base (44), and the top of its piston rod is connected to the bottom surface of the baffle plate (42). The jaw air cylinder (46) is fixedly installed at the center position of the vertical surface of the slide base (44). The jaws (47) are located on the surface of the jaw air cylinder (46), with a total of three, and the three have exactly the same structure, dividing the surface of the jaw air cylinder (46) into three equal parts. When the pressing air cylinder (43) contracts, it drives the baffle plate (42) to perform an axial movement on the linear guide rail (41). When the protruding pad on the baffle plate (42) contacts the outer ring of the bearing and presses it tightly, its axial movement stops. At this time, the outer ring of the bearing completes the clamping and positioning action. When the unclamping air cylinder (45) contracts, its piston rod retracts, and then drives the slide base (44) to perform an axial movement, thereby driving the jaws (47) to penetrate into the inner hole of the bearing seal seat. When the three jaws (47) contact the inner hole of the bearing seal seat and expand outward to tighten the inner hole of the seal seat, its axial movement stops. At this time, the clamping and unclamping mechanism (4) is completely concentric with the bearing center. When the unclamping air cylinder (45) operates and its piston rod extends, it drives the slide base (44) and the baffle plate (42) to perform a relative axial movement, thereby driving the jaws (47) to separate the clamped seal seat from the bearing, and the unclamping action is completed.

[0019] The present invention uses specific examples to elaborate on the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A bearing seal seat removal device, characterized in that: The whole machine is composed of a frame (1), a positioning mechanism (2), a guide alignment mechanism (3), and a clamping and unloading mechanism (4); the frame (1) is a rectangular parallelepiped structure made of welded steel sections, which is fixedly installed on the ground through a bracket to support the entire device, and its frame is a built-in hollow type, and a detachable valve is embedded on the surface to facilitate the use of materials; the positioning mechanism (2) is installed at the center of the frame (1), and the guide alignment mechanism (3) and the clamping and unloading mechanism (4) are in total two groups, and the two groups are completely identical in structure, both of which are symmetrically installed on the frames (1) on both sides thereof with the positioning mechanism (2) as the center, and the transverse slide cylinder (32) in the guide alignment mechanism (3) is actuated. , thereby driving the guide baffle (33) to move axially. When it contacts the bearing surface, the axial movement stops and the axial positioning action of the bearing is completed; the clamping and unloading mechanism (4) is composed of a linear guide rail (41), a baffle (42), a clamping cylinder (43), a slide base (44), an unloading cylinder (45), a claw cylinder (46), and a claw (47). There are two linear guide rails (41) with the same structure. They are installed on the frame (1). The baffle (42) is slidably connected to the linear guide rail (41) through a slider and is a U-shaped structure. The clamping cylinder (43) is located on the inner side of the linear guide rail (41) and inside the frame (1). The slide base (44) is a 90-degree spliced ​​plate structure composed of two vertical iron plates. The two sides of the vertical surface are fixed by two triangular rib plates, which are stable and reliable. The unloading cylinder (45) is located on the inner side of the horizontal surface of the slide base (44). The top of its piston rod is connected to the bottom surface of the baffle (42). The claw cylinder (46) is fixedly installed at the center position of the vertical surface of the slide base (44). The claw (47) is located on the surface of the claw cylinder (46). There are three claws in total, and the three structures are exactly the same. The surface of the claw cylinder (46) is divided into three equal parts. The pressing cylinder (43) contracts to drive the baffle (42) to move axially on the linear guide rail (41). When the protruding pad on the baffle (42) The block contacts the outer ring of the bearing and tightens it, and its axial movement stops. At this time, the outer ring of the bearing completes the clamping and positioning action, the unloading cylinder (45) contracts, and its piston rod is retracted, thereby driving the slide base (44) to move axially, thereby driving the claws (47) to penetrate into the inner hole of the bearing seal seat. When the three claws (47) contact the inner hole of the bearing seal seat and expand outward to tighten the inner hole of the seal seat, its axial movement stops. At this time, the clamping and unloading mechanism (4) is completely concentric with the center of the bearing, the unloading cylinder (45) is actuated, and its piston rod extends, thereby driving the slide base (44) and the baffle (42) to move relative axially, thereby driving the claws (47) to separate the clamped seal seat from the bearing, and the unloading action is completed.

2. The bearing seal seat removal device according to claim 1, characterized in that: The positioning mechanism (2) is composed of a base (21), a side baffle (22), a track (23), a limit stop (24), and a non-return stop (25); the base (21) is installed at the center of the frame (1); the side baffle (22) has two pieces, and the two pieces have exactly the same structure. They are symmetrically installed with the center of the base (21) as the axis. They are V-shaped structures. When the bearing enters the working position, the outer side surface of the bearing contacts the inner side surface of the side baffle (22), which can slow down the axial movement of the bearing and prevent the bearing from falling out of the track (23). The track (23) is located on the inner side of the side baffle (22), and there are two pieces. The two pieces have exactly the same structure. The height of the two pieces is lower than the height of the side baffle (22). When the bearing enters the working position, due to its V-shaped structure, the speed of the bearing entering can be slowed down and the movement can be stopped eventually, preventing the bearing from rushing out of the track. (23); The limit stopper (24) is a cube with a square bottom surface and a chamfered slope structure on the upper surface. It contacts the bearing surface and can slow down and prevent the bearing from being out of position. The check stopper (25) is a right-angled triangle structure and is connected to the base (21) through a pin shaft. The check stopper (25) is slidably connected to the base (21). The center of gravity of the right-angled triangle is located at its bottom. When there is no bearing in the work station, it is in the shape of a right-angled triangle. When the bearing enters the work station, the outer ring of the bearing contacts the oblique angle side of the check stopper (25). The check stopper (25) is stressed and its oblique angle side moves in a clockwise direction. When the bearing loses contact with the oblique angle side of the check stopper (25), the stress disappears and its oblique angle side moves in a counterclockwise direction until it stops moving and restores the right-angled triangle shape, which can prevent the bearing from rebounding. When the movement of the bearing stops, the bearing positioning action is completed.

3. The bearing seal seat removal device according to claim 1, characterized in that: The guiding and positioning mechanism (3) is composed of a lifting slide cylinder (31), a transverse slide cylinder (32), a guide baffle (33), and a connecting seat (34); wherein the lifting slide cylinder (31), the transverse slide cylinder (32), and the connecting seat (34) are in total two groups, and the two groups have exactly the same structure. The lifting slide cylinder (31) is connected to the transverse slide cylinder (32) via the connecting seat (34), and the transverse slide cylinder (32) is fixed to the guide baffle (33) via bolts. When the lifting slide cylinder (31) is actuated, its piston rod extends, thereby driving the guide baffle (33) to move upward. When it reaches the designated work position, the upward movement stops, and its guiding action is completed.

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