Bearing sealing seat dismounting device

Abstract

The invention discloses a dismounting device for a bearing sealing seat. The whole dismounting device is composed of a rack, a positioning mechanism, a guiding and aligning mechanism and a clamping and withdrawing mechanism. According to the bearing sealing seat dismantling device, dismantling work of the bearing sealing seat can be automatically executed, the bearing automatic positioning function is achieved, the bearing can automatically roll into the positioning mechanism by adopting a gravity raceway feeding mode, in addition, the device adopts a double-side clamping jaw structure, and synchronous dismantling work of sealing seats on the two sides of the bearing is achieved; the device has the advantages that due to the efficient and automatic operation process, the requirement for manual intervention is remarkably reduced, the working efficiency is improved, the labor intensity of operators is reduced, in addition, the device further has high universality and adaptability, can be matched with bearing sealing bases of various specifications and models, and the production cost is reduced. The requirements in different application scenes are met, the maintenance cost in long-term use is reduced, and remarkable economic benefits are brought to users.

Description

Technical Field

[0001] The present invention relates to the technical field of railway freight car wheel axle maintenance, and in particular to railway freight car wheel axle bearing maintenance equipment. The device can realize the automatic removal of the wheel axle bearing sealing seat and has the function of automatic bearing positioning. By adopting the gravity roller 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 of the sealing seats on both sides of the bearing, and the maintenance process is fully automated, which significantly reduces the need for manual participation, not only improves work efficiency, but also reduces the labor intensity of operators. Background Art

[0002] As the main transportation channel, railways carry important transportation tasks. Railway freight cars are the means of transport for railway freight transportation. Axles are important components on railway freight cars. Their technical status directly affects the safety of vehicle operation. The quality of railway freight car axle maintenance is particularly important. The axles work repeatedly for a long time, and the outer rings of the bearings are exposed to the outside for a long time. A lot of dust, rust and other foreign matter are attached to their surfaces. The inner rings, retainers and rollers of the bearings also wear out due to long-term operation. When carrying out bearing maintenance, the bearing seal seat needs to be removed from the bearing first. At present, the removal of the bearing seal seat of railway vehicles is manually removed by workers using crowbars or other tools. This operation method not only greatly increases the labor intensity of the workers, but also easily damages the workpiece. What is more serious is that this operation method also has safety hazards, which can easily cause workers to suffer work-related injuries such as smashing and bumping during operation. Therefore, it is particularly necessary to invent a bearing seal seat removal device to realize the automatic removal of the wheel axle bearing seal seat and the automation of the wheel 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 object, the present invention provides the following solutions:

[0005] The present invention provides a bearing seal seat removal device, characterized in that the whole machine consists of a frame (1), a positioning mechanism (2), a guide alignment mechanism (3), and a clamping and withdrawing mechanism (4); the frame (1) is a rectangular parallelepiped structure formed by welding steel sections, which is fixedly installed on a ground foundation through a bracket to support the entire device, and the frame body 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 withdrawing mechanism (4) are in total two groups, and the two groups have exactly the same structure, both of which are symmetrically installed on the frames (1) on both sides of the positioning mechanism (2) with the positioning mechanism (2) as the center.

[0006] Preferably, 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 and their height 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 finally stopped to prevent the bearing from rushing out The track (23); the limit stop (24) is a cube with a square bottom surface and a missing angle 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 stop (25) is a right triangle structure and is connected to the base (21) through a pin. The check stop (25) is slidably connected to the base (21). The center of gravity of the right triangle is located at its bottom. When there is no bearing in the work station, it is in the shape of a right triangle. When the bearing enters the work station, the outer ring of the bearing contacts the oblique angle side of the check stop (25). The check stop (25) is stressed and its oblique angle side moves in a clockwise direction. When the bearing is out of contact with the oblique angle side of the check stop (25), the stress disappears and its oblique angle side moves in a counterclockwise direction until it stops moving and restores the right triangle shape. The rebound movement of the bearing can be prevented. When the movement of the bearing stops, the bearing positioning action is completed.

[0007] Preferably, 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. When the transverse slide cylinder (32) 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.

[0008] Preferably, 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 clamping claw cylinder (46), and a clamping claw (47). There are two linear guide rails (41) with completely identical structures, which 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) It 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 (4 7), which is located on the surface of the claw cylinder (46), and there are three of them, and the three structures are exactly the same, dividing the surface of the claw cylinder (46) into three equal parts, and the pressing cylinder (43) contracts, driving the baffle (42) to move axially on the linear guide (41). When the protruding pad on the baffle (42) contacts and presses the outer ring of the bearing, its axial movement stops. At this time, the outer ring of the bearing completes the clamping and positioning action, and the unloading cylinder (45) contracts, and its piston rod is retracted, thereby driving the slide base (44) to move axially. The three claws (47) are in contact with the inner hole of the bearing seal seat and expand outward to tighten the inner hole of the seal seat, and the axial movement stops. At this time, the clamping and unloading mechanism (4) is completely concentric with the center of the bearing, and 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.

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

[0010] The purpose of the present invention is to provide a bearing seal seat removal device, which automatically completes the removal of the wheel axle bearing seal seat and has the function of automatic bearing positioning. By adopting the gravity roller 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 of the seal seats on both sides of the bearing, and the maintenance process is fully automated; to solve the problems existing in the above-mentioned prior art, reduce the labor intensity of operators, realize the automated operation of railway wheel axle maintenance, and further improve the maintenance efficiency of railway truck wheel axles. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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 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.

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

[0013] Figure 2 The main view of the positioning mechanism;

[0014] Figure 3 It is a side view of the guiding alignment mechanism;

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

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

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] Please see attached Figure 1 , 2, 3, 4, the whole machine is composed of a frame (1), a positioning mechanism (2), a guiding and correcting 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 equipment, and its frame body is a built-in hollow type, and a detachable valve is embedded on the outer surface to facilitate the use of materials; the positioning mechanism (2) is composed of a base (21), a side baffle (22), a track (23), a limit stop (24), and a check stop (25); the base (21) is installed at the center of the frame (1), and the side baffle (22) has two pieces, and the two pieces have exactly the same structure and are symmetrically installed with the center of the base (21) as the axis. It is a V-shaped structure. When the bearing enters the workstation, 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 of them. The two structures are exactly the same, and their height is lower than the height of the side baffle (22). When the bearing enters the workstation, due to its V-shaped structure, the speed of the bearing entering can be slowed down 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 missing corner slope structure on the upper surface. It contacts the bearing surface and can slow down and prevent the bearing from going out of position. The non-return stop (25) is a right-angled triangle structure, which is connected to the base through a pin shaft. (21), the check block (25) is connected to the base (21) in a sliding connection, and the center of gravity of the right triangle is located at the bottom. When there is no bearing in the work station, it is in the shape of a right triangle. When the bearing enters the work station, the outer ring of the bearing contacts the oblique angle side of the check block (25), the check block (25) is stressed, and its oblique angle side moves in a clockwise direction. When the bearing is out of contact with the oblique angle side of the check block (25), the stress disappears, and its oblique angle side moves in a counterclockwise direction until it stops moving, restoring 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; the guide 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). ) is composed of a lifting slide cylinder (31), a transverse slide cylinder (32), and a connecting seat (34), and the two groups have exactly the same structure. The lifting slide cylinder (31) is connected to the transverse slide cylinder (32) through the connecting seat (34), and the transverse slide cylinder (32) is fixed on the guide baffle (33) by 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 workstation, the upward movement stops, and its guiding action is completed; when the transverse slide cylinder (32) is actuated, it drives the guide baffle (33) to move axially. When it contacts the bearing surface, the axial movement stops, and the axial alignment 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 clamping claw cylinder (46), and a clamping 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 has a U-shaped structure. The clamping cylinder (43) is located at The inner side of the linear guide rail (41), the interior of the frame (1), the slide base (44), which is a 90-degree spliced ​​plate structure composed of two vertical iron plates, is fixed by two triangular rib plates on both sides of the vertical surface, which is stable and reliable. The unloading cylinder (45) is located on the inner side of 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 claw cylinder (46) is fixedly installed at the center position of the vertical plane of the slide base (44). The claw (47) , which are located on the surface of the claw cylinder (46), and there are three of them, and the three structures are exactly the same, dividing the surface of the claw cylinder (46) into three equal parts, and the pressing cylinder (43) contracts, driving the baffle (42) to move axially on the linear guide (41). When the protruding pad on the baffle (42) contacts and presses the outer ring of the bearing, its axial movement stops. At this time, the outer ring of the bearing completes the clamping and positioning action, and the unloading cylinder (45) contracts, and its piston rod is retracted, thereby driving the slide base (44) to move axially. The three claws (47) move to penetrate 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, the 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) moves, and its piston rod extends, thereby driving the slide base (44) and the baffle (42) to move relative to each other in the axial direction, thereby driving the claws (47) to separate the clamped seal seat from the bearing, and the unloading action is completed. ;

[0019] The present invention applies specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting 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 withdrawing mechanism (4); the frame (1) is a rectangular parallelepiped structure made of welded steel sections, which is fixedly installed on a ground foundation 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 withdrawing mechanism (4) are in total two groups, and the two groups have exactly the same structure, both of which are symmetrically installed on the frames (1) on both sides of the positioning mechanism (2) with the positioning mechanism (2) as the center.

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. When the transverse slide cylinder (32) is actuated, it drives 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.

4. The bearing seal seat removal device according to claim 1, characterized in that: 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 clamping claw cylinder (46), and a clamping 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 has a U-shaped structure. The clamping cylinder (43) is located at The inner side of the linear guide rail (41), the interior of the frame (1), the slide base (44), which is a 90-degree spliced ​​plate structure composed of two vertical iron plates, is fixed by two triangular rib plates on both sides of the vertical surface, which is stable and reliable. The unloading cylinder (45) is located on the inner side of 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 claw cylinder (46) is fixedly installed at the center position of the vertical plane of the slide base (44). The claw (47) , which are located on the surface of the claw cylinder (46), and there are three of them, and the three structures are exactly the same, dividing the surface of the claw cylinder (46) into three equal parts, and the pressing cylinder (43) contracts, driving the baffle (42) to move axially on the linear guide (41). When the protruding pad on the baffle (42) contacts and presses the outer ring of the bearing, its axial movement stops. At this time, the outer ring of the bearing completes the clamping and positioning action, and the unloading cylinder (45) contracts, and its piston rod is retracted, thereby driving the slide base (44) to move axially. The three claws (47) are in contact with the inner hole of the bearing seal seat and expand outward to tighten the inner hole of the seal seat, and their axial movement stops. At this time, the clamping and unloading mechanism (4) is completely concentric with the center of the bearing, and the unloading cylinder (45) is activated, and its piston rod extends, thereby driving the slide base (44) and the baffle (42) to have relative axial movement, thereby driving the claws (47) to separate the clamped seal seat from the bearing, and the unloading action is completed.

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