A subway vehicle unit brake dismounting device

Abstract

The present application relates to the technical field of subway brake maintenance, and discloses a subway vehicle unit brake dismounting device, which comprises a bottom plate, a stand column fixedly connected to the upper side of the bottom plate, a lifting device slidingly connected to the stand column, a rotating device arranged on one side of the lifting device, a dismounting ring fixedly connected to the rotating device through a turnover shaft, a dismounting clamp jaw arranged on the lower side of the dismounting ring, a maintenance device arranged on one side of the dismounting ring, a self-driven rotary disc fixedly connected to the upper side of the bottom plate, and a clamping device arranged on the self-driven rotary disc and used for clamping the brake cylinder body of the unit brake, wherein the dismounting ring and the dismounting clamp jaw are used for dismounting the brake core in the brake cylinder body, and the maintenance device is used for maintaining the inner wall of the brake cylinder body. The present application has the beneficial effect that the first air bag and the inner wall of the brake cylinder body are relatively displaced, and when there is a burr on the inner wall of the brake cylinder body, the burr will pierce the first air bag, thereby obtaining the result of whether there is a burr.

Description

Technical Field

[0001] This invention relates to the field of subway brake maintenance technology, and in particular to a device for disassembling and assembling a subway vehicle unit brake. Background Technology

[0002] The unit brake is a key component of the subway car bogie, and its performance directly affects the train's operational safety. The smooth start and stop of the train is directly related to the working state of the brake cylinder. Controlling the train's air pressure causes the brake cylinder to move a piston, generating or offsetting braking force to ensure the safe operation of passenger trains. After prolonged use, the internal lubricating grease and sealing piston rings of the brake cylinder will fatigue and deteriorate. Therefore, regular inspection and maintenance are necessary, checking the operating condition of each part and replacing the grease before continued use. During the cleaning process, it is necessary to check whether burrs have formed inside the brake cylinder due to prolonged use. If these burrs are not removed in time, they will reduce the service life of the brake core. Current technology involves manually reaching into the cylinder with gloves and slowly touching various areas of the inner wall of the brake cylinder with fingers to feel for particulate impurities. This method is inefficient and also risks scratching the fingers with tiny metal burrs. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for disassembling and assembling a subway vehicle unit brake.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A unit brake disassembly and assembly device for subway vehicles includes a base plate, a column fixedly connected to the upper side of the base plate, a lifting device slidably connected to the column, a rotating device mounted on one side of the lifting device, a disassembly ring fixedly connected to the rotating device via a flipping shaft, a disassembly gripper mounted on the lower side of the disassembly ring, a maintenance device mounted on one side of the disassembly ring, a self-driven rotating disc fixedly connected to the upper side of the base plate, a clamping device mounted on the self-driven rotating disc, the clamping device being used to clamp the brake cylinder of the unit brake, the disassembly ring and the disassembly gripper being used to remove the brake core inside the brake cylinder, and the maintenance device being used to maintain the inner wall of the brake cylinder.

[0005] Preferably, the maintenance device includes a fixing plate, which is fixed to the disassembly ring. The fixing plate is provided with a hanging rod, and a burr detection device is provided on one side of the hanging rod.

[0006] Preferably, the fixed plate is provided with a sliding hole, the rod is slidably connected in the sliding hole, the upper end of the rod is fixedly connected to the top plate, and a first spring is fixedly connected between the top plate and the fixed plate.

[0007] Preferably, the burr detection device includes a base column, a mounting groove on one side of the base column, an arc-shaped plate fixedly connected in the mounting groove, a first airbag fixedly connected to one side of the arc-shaped plate, and an air supply device on one side of the first airbag.

[0008] Preferably, the air supply device includes a base block, an air supply hole on one side of the base block, a piston plate slidably connected inside the air supply hole, a second spring fixedly connected between the piston plate and the bottom of the air supply hole, a piston rod fixedly connected to one side of the piston plate, a conical head fixedly connected to one end of the piston rod, and the air supply hole is connected to the first airbag through a hose, with a one-way valve installed on the hose.

[0009] Preferably, a process rack is detachably connected to the upper side of the self-driven rotating disk. The process rack includes a process ring, and multiple pins are fixedly connected to the lower side of the process ring. The upper side of the self-driven rotating disk is provided with insertion holes, and the pins and insertion holes are inserted into each other in a one-to-one correspondence. Multiple contact blocks are fixedly connected to the upper side of the process ring. The contact blocks are evenly arranged around the axis of the process ring, and one side of the contact block is provided with an inclined surface.

[0010] Preferably, the base column has a cavity on its inner side and an opening that communicates with the cavity. A first scraper is hinged to the base column, and a second scraper is fixedly connected to one side of the first scraper. When the first scraper is in contact with the surface of the base column, the first scraper can block the opening. When the first scraper is perpendicular to the surface of the base column, the opening is in an open state.

[0011] Preferably, a second airbag is installed at the upper end of the base column, and the second airbag is connected to the first airbag through a connecting hole.

[0012] The beneficial effects of the present invention are as follows: The subway vehicle unit brake disassembly and assembly device provided by the present invention contacts the inner wall of the brake cylinder through an inflated first airbag, causing relative displacement between the first airbag and the inner wall of the brake cylinder. When there are burrs on the inner wall of the brake cylinder, the burrs will puncture the first airbag, thus determining whether there are burrs. After the first airbag is punctured, the second airbag will also deflate. The second airbag is not easily blocked by other parts, making it easy for workers to determine whether there are burrs in the brake cylinder. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the basic structure of a subway vehicle unit brake disassembly and assembly device provided by the present invention. Figure 2 yes Figure 1 Work process status diagram; Figure 3 yes Figure 2 The main view; Figure 4 This is a schematic diagram of the basic structure of the maintenance device; Figure 5 This is a schematic diagram of the basic structure of the gas supply device; Figure 6 This is a schematic diagram of the cross-sectional structure of the burr detection device; Figure 7 yes Figure 6 Usage status diagram; Figure 8 This is a schematic diagram of the basic structure of the process rack; Figure 9 This is a diagram showing the usage state of the present invention. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0015] like Figures 1-9 As shown, this embodiment of a subway vehicle unit brake disassembly and assembly device includes a base plate 1, a column 2 fixedly connected to the upper side of the base plate 1, and a lifting device 21 slidably connected to the column 2. The lifting device 21 is a prior art device capable of sliding up and down along the column 2. A rotating device 3 is mounted on one side of the lifting device 21. The rotating device 3 is fixedly connected to a disassembly ring 4 via a flipping shaft 31. The rotating device 3 can drive the flipping shaft 31 to rotate 180°, thereby causing the disassembly ring 4 to flip. A disassembly gripper 41 is mounted on the lower side of the disassembly ring 4. A self-driven rotating disk 6 is fixedly connected to the upper side of the base plate 1. The self-driven rotating disk 6 is existing technology, with built-in power and the ability to rotate on the upper side of the base plate 1. A clamping device 62 is mounted on the self-driven rotating disk 6, used to clamp the brake cylinder 100 of the unit brake. A disassembly ring 4 and disassembly jaws 41 are used to remove the brake core 200 from the brake cylinder 100. In actual use, the disassembly ring 4 and disassembly jaws 41 are lowered by the lifting device 21, clamping the brake core 200. The lifting device 21 then drives the disassembly ring 4 and disassembly jaws 41 to rise, thereby removing the brake core 200 from the brake cylinder 100. Then, the disassembly ring 4 is rotated by the rotating device 3, causing it to flip, thus flipping the brake core 200 upwards for easy maintenance by personnel.

[0016] A maintenance device 5 is installed on one side of the disassembly ring 4. The maintenance device 5 is used to maintain the inner wall of the brake cylinder body 100. The maintenance device 5 includes a fixing plate 51, which is fixed to the disassembly ring 4. A hanger 52 is provided on the fixing plate 51. The fixing plate 51 has a sliding hole, and the hanger 52 is slidably connected in the sliding hole. The upper end of the hanger 52 is fixedly connected to a top plate 53. A first spring 54 is fixedly connected between the top plate 53 and the fixing plate 51. A burr detection device 8 is provided on one side of the hanger 52. The burr detection device 8 includes a base column 81. A mounting groove is provided on one side of the base column 81. An arc-shaped plate 83 is fixedly connected in the mounting groove. A first airbag 84 is fixedly connected to one side of the arc-shaped plate 83. An air supply device 9 is provided on one side of the first airbag 84. The air supply device 9 is used to inflate the first airbag 84, causing the first airbag 84 to expand. The lifting device 21 drives the disassembly ring 4 and maintenance device 5 to move downwards, thereby allowing the lifting rod 52 to be inserted into the brake cylinder 100. At this time, the inflated first airbag 84 is in contact with the inner wall of the brake cylinder 100. The self-driven rotating disc 6 drives the brake cylinder 100 to rotate, thus causing relative displacement between the first airbag 84 and the inner wall of the brake cylinder 100. If there are burrs on the inner wall of the brake cylinder 100, the burrs will puncture the first airbag 84, thus determining whether there are burrs. To facilitate observation of whether the burrs have been punctured, a second airbag 80 is installed at the upper end of the base column 81. The second airbag 80 is connected to the first airbag 84 through a connecting hole. The second airbag 80 is located at the top and is not easily obstructed by other components. Since the second airbag 80 is connected to the first airbag 84, the second airbag 80 will also deflate if the first airbag 84 is punctured. Therefore, it is easy for the staff to determine whether there are burrs inside the brake cylinder 100. If so, they need to be cleaned with special tools, and the inner wall of the brake cylinder 100 must not be damaged.

[0017] To further improve the accuracy of burr detection results, the air supply device 9 includes a base block 91. An air supply hole 92 is provided on one side of the base block 91. A piston plate 93 is slidably connected inside the air supply hole 92. A second spring 94 is fixedly connected between the piston plate 93 and the bottom of the air supply hole 92. A piston rod 95 is fixedly connected to one side of the piston plate 93. A conical head 96 is fixedly connected to one end of the piston rod 95. The air supply hole 92 is connected to the first airbag 84 through a hose 90. A one-way valve is installed on the hose 90. A limit ring 97 is also installed inside the air supply hole 92. The self-driven rotating disk 6 is detachably connected to the process frame 7. The process frame 7 includes a process ring 71. Multiple pins 72 are fixedly connected to the lower side of the process ring 71. The self-driven rotating disk 6 has insertion holes 61 on its upper side. The pins 72 are inserted into the insertion holes 61 in a one-to-one correspondence. Multiple contact blocks 73 are fixedly connected to the upper side of the process ring 71. The contact blocks 73 are evenly arranged around the axis of the process ring 71. One side of the contact block 73 has an inclined surface 74. When inspecting whether there are burrs inside the brake cylinder 100, the conical head 96 will intermittently contact the inclined surface 74 of the contact block 73. When the conical head 96 contacts the inclined surface 74, the piston plate 93 will first move towards the limiting ring 97. During this process, the piston plate 93 compresses the gas, thereby inflating the first airbag 84. When the piston plate 93 contacts the limiting ring 97, the piston plate 93 is limited by the limiting ring 97. At this time, under the action of the inclined plane, the base block 91 will drive the lifting rod 52 to move upward, thereby causing the burr detection device 8 to move upward as well. When the conical head 96 leaves the inclined plane 74, the piston plate 93 returns to its original position under the action of the second spring 94, and the lifting rod 52 returns to its original position under the action of the first spring 54. In this way, the burr detection device 8 can move up and down within the brake cylinder 100, which can better contact the inner wall of the brake cylinder 100, making it easier to detect burrs and improving the accuracy of the burr detection results. At the same time, the first airbag 84 can be intermittently and slowly inflated to gradually increase the pressure inside the first airbag 84, further improving the accuracy of the burr detection results.

[0018] After the brake core 200 is removed from the brake cylinder 100, expired or deteriorated grease residue may remain inside the brake cylinder 100. To facilitate the cleaning of this residue, this embodiment is designed as follows: a cavity 82 is provided inside the base post 81, and an opening 85 communicating with the cavity 82 is provided on the base post 81. A first scraper 86 is hinged to the base post 81, and a second scraper 87 is fixedly connected to one side of the first scraper 86. When the first scraper 86 is in contact with the surface of the base post 81, it blocks the opening 85, and at this time, one end of the second scraper 87 contacts the inner surface of the brake cylinder 100. When the first scraper 86 is perpendicular to the surface of the base post 81, the opening 85 is open, and at this time, one end of the first scraper 86 contacts the inner surface of the brake cylinder 100. See also Figure 6 and Figure 7When the brake cylinder 100 rotates counterclockwise and one end of the first scraper 86 contacts the inner surface of the brake cylinder 100, the residual grease inside the brake cylinder 100 is scraped off by the first scraper 86. The residual grease enters the cavity 82 through the opening 85 along the first scraper 86. After the residual grease is cleaned, the first scraper 86 is rotated so that it fits against the surface of the base post 81, blocking the opening 85 and sealing the cavity 82 to prevent the grease from flowing out again. At this time, one end of the second scraper 87 contacts the inner surface of the brake cylinder 100, adding new grease to the inner surface of the brake cylinder 100. The brake cylinder 100 is then rotated clockwise, and the new grease is evenly spread on the inner surface of the brake cylinder 100 by the second scraper 87.

Claims

1. A device for disassembling and assembling a unit brake in a subway vehicle, characterized in that: Includes a base plate (1), a column (2) fixedly connected to the upper side of the base plate (1), a lifting device (21) slidably connected to the column (2), a rotating device (3) mounted on one side of the lifting device (21), a disassembly ring (4) fixedly connected to the rotating device (3) via a flipping shaft (31), a disassembly gripper (41) mounted on the lower side of the disassembly ring (4), a maintenance device (5) mounted on one side of the disassembly ring (4), a self-driven rotating disk (6) fixedly connected to the upper side of the base plate (1), a clamping device (62) mounted on the self-driven rotating disk (6), the clamping device (62) used to clamp the brake cylinder (100) of the unit brake, the disassembly ring (4) and the disassembly gripper (41) used to remove the brake core (200) inside the brake cylinder (100), and the maintenance device (5) used to maintain the inner wall of the brake cylinder (100); The maintenance device (5) includes a fixing plate (51), which is fixed to the disassembly ring (4). A hanging rod (52) is provided on the fixing plate (51), and a burr detection device (8) is provided on one side of the hanging rod (52). The fixed plate (51) is provided with a sliding hole, the hanging rod (52) is slidably connected in the sliding hole, the upper end of the hanging rod (52) is fixedly connected to the top plate (53), and the top plate (53) and the fixed plate (51) are fixedly connected to the first spring (54). The burr detection device (8) includes a base column (81), a mounting groove is provided on one side of the base column (81), an arc plate (83) is fixedly connected in the mounting groove, a first airbag (84) is fixedly connected on one side of the arc plate (83), and an air supply device (9) is provided on one side of the first airbag (84). The air supply device (9) includes a base block (91), an air supply hole (92) is provided on one side of the base block (91), a piston plate (93) is slidably connected in the air supply hole (92), a second spring (94) is fixedly connected between the piston plate (93) and the bottom of the air supply hole (92), a piston rod (95) is fixedly connected to one side of the piston plate (93), a conical head (96) is fixedly connected to one end of the piston rod (95), the air supply hole (92) is connected to the first airbag (84) through a hose (90), and a one-way valve is installed on the hose (90); The self-driven rotating disk (6) is detachably connected to the process rack (7) on its upper side. The process rack (7) includes a process ring (71). Multiple pins (72) are fixedly connected to the lower side of the process ring (71). The self-driven rotating disk (6) is provided with a socket (61) on its upper side. The pins (72) and the sockets (61) are inserted into each other in a one-to-one correspondence. Multiple touch blocks (73) are fixedly connected to the upper side of the process ring (71). The touch blocks (73) are evenly arranged around the axis of the process ring (71). One side of each touch block (73) is provided with an inclined surface (74). The base column (81) has a cavity (82) on its inner side and an opening (85) that communicates with the cavity (82) on the base column (81). A first scraper (86) is hinged to the base column (81), and a second scraper (87) is fixedly connected to one side of the first scraper (86). When the first scraper (86) is in contact with the surface of the base column (81), the first scraper (86) can block the opening (85). When the first scraper (86) is perpendicular to the surface of the base column (81), the opening (85) is in an open state. The upper end of the base column (81) is equipped with a second airbag (80), and the second airbag (80) is connected to the first airbag (84) through a connecting hole.

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