Automatic dismounting and mounting device for unit brake cylinder

Abstract

The utility model discloses an automatic dismounting and mounting device for a unit brake cylinder, which comprises a base horizontally arranged on the ground; the rotating table comprises a bottom plate, a top plate and stand columns, the bottom plate is used for bearing the unit brake cylinder, and a positioning hole allowing the lower end of the unit brake cylinder to penetrate is formed in the top plate; the bolt head fixing mechanism is arranged on the top plate and used for being arranged on the outer wall of a bolt head in a sleeving mode; the portal frame is arranged on the base and stretches across the rotating table; the sliding table is vertically and slidably connected to the portal frame; the driving mechanism is used for controlling the sliding table to vertically slide; and the nut rotating mechanism is arranged on the sliding table and used for controlling the nut to rotate. According to the utility model, the bolts on the unit brake cylinder can be automatically disassembled and assembled, manual disassembly and assembly by workers are not needed, and the disassembly and assembly efficiency and the maintenance efficiency are improved; and meanwhile, by arranging the torsion sensor, real-time monitoring and displaying of the torsion value are achieved, the nut can be screwed in place at a time, and the installation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to unit brake cylinder overhauls field especially unit brake cylinder's automatic dismounting device. BACKGROUND

[0002] Unit brake cylinder is one of the key components in railway vehicle brake system, and is mainly used for realizing the brake function of vehicle. Its working principle is mainly to convert the pressure of compressed air into mechanical force, push the piston movement, and then drive the brake shoe to tightly contact the wheel tread to generate friction force, so as to achieve the purpose of deceleration or parking. Unit brake cylinder has been widely used in modern railway transportation due to its compact structure, easy installation and simple maintenance.

[0003] At present, the train runs to the station, and the vehicle technician will disassemble the unit brake cylinder, and then transport it to the repair workshop for repair. In the repair process, the unit brake cylinder needs to be disassembled, and the traditional manual dismounting mode is usually used to realize the dismounting of the bolt.

[0004] However, since there are 12 bolts at the outer edge position of the unit brake cylinder, the manual dismounting work efficiency is low, which affects the repair efficiency of the unit brake cylinder, and needs to be improved. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model aims to provide an automatic dismounting device for unit brake cylinder, which has the effect of improving the repair efficiency of unit brake cylinder.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: an automatic dismounting device for unit brake cylinder, comprising:

[0007] A base is horizontally arranged on the ground;

[0008] A rotating table includes a bottom plate, a top plate and a stand, the bottom plate is horizontally connected to the base, the top plate is horizontally arranged above the bottom plate, the stand is vertically arranged around the bottom plate and the top plate, the bottom plate is used for supporting the unit brake cylinder, and the top plate is provided with a positioning hole for the lower end of the unit brake cylinder to pass through;

[0009] A bolt head fixing mechanism is arranged on the top plate and is used for sleeving the outer wall of the bolt head;

[0010] A gantry is arranged on the base and spans the rotating table;

[0011] A sliding table is vertically and slidingly connected to the gantry;

[0012] A driving mechanism is used for controlling the vertical sliding of the sliding table;

[0013] A nut rotating mechanism is arranged on the sliding table and used for controlling the rotation of the nut.

[0014] In a preferred example, the bolt head fixing mechanism comprises a fixing rod, a fixing tube, a spring, a positioning plate and a positioning column, the fixing rod vertically penetrates the top plate, the fixing tube is vertically and slidingly connected to the outer wall of the fixing rod, and a groove for embedding the bolt head is arranged at the upper end of the fixing tube, the spring is arranged between the fixing rod and the fixing tube, the positioning plate is arranged at the lower end of the fixing rod, the positioning column is vertically arranged on the upper end surface of the positioning plate, and a positioning groove for sliding of the positioning column is arranged on the lower end surface of the top plate.

[0015] In a preferred example, the nut rotating mechanism comprises a mounting tube, a mounting rod, an elastic member and a motor, the mounting tube is vertically arranged on the sliding table, the mounting rod is vertically and slidingly connected to the mounting tube, the elastic member is arranged between the mounting tube and the mounting rod, a clamping groove for embedding the nut and the bolt rod is arranged at the lower end of the mounting rod, and the motor is arranged on the sliding table and connected to the mounting tube.

[0016] In a preferred example, a magnet is embedded in the inner wall of the clamping groove.

[0017] In a preferred example, a torsion sensor is arranged between the shaft of the motor and the mounting tube.

[0018] In a preferred example, the driving mechanism comprises an electric cylinder and a guide rod, the electric cylinder is arranged on the portal frame and connected to the sliding table, and the guide rod is vertically arranged on the sliding table and penetrates the portal frame.

[0019] In a preferred example, a clamping block is horizontally and relatively arranged on the bottom plate, a bidirectional screw rod is horizontally and rotatably connected in the bottom plate, the bidirectional screw rod is threadedly connected to a pair of clamping blocks, and a hand wheel is arranged at the outer end of the bidirectional screw rod.

[0020] In summary, the utility model has the following beneficial effects:

[0021] 1. By setting the structure capable of automatically disassembling and assembling the bolt on the unit brake cylinder, the automatic disassembly and assembly of the unit brake cylinder are realized, the manual disassembly and assembly of workers are not needed, the disassembly and assembly efficiency is improved, and the maintenance efficiency of the unit brake cylinder is improved.

[0022] 2. By setting the torsion sensor, the real-time monitoring and display of the torsion value are realized in the fixed tightening of the bolt, the nut can be once screwed in place, and the installation efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of an embodiment;

[0024] Figure 2 2 is a schematic diagram of the embodiment in use;

[0025] Figure 3 It is a schematic diagram of the internal structure of the embodiment.

[0026] Figure numerals: 1. base; 2. rotating table; 21. bottom plate; 22. top plate; 23. column; 24. positioning hole; 25. clamping block; 26. bidirectional screw; 27. handwheel; 3. bolt head fixing mechanism; 31. fixing rod; 32. fixing tube; 33. spring; 34. positioning plate; 35. positioning column; 36. groove; 37. positioning groove; 4. gantry; 5. slide; 6. driving mechanism; 61. electric cylinder; 62. guide rod; 7. nut rotating mechanism; 71. mounting tube; 72. mounting rod; 73. elastic member; 74. motor; 75. slot; 76. magnet; 77. torque sensor. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below with reference to the accompanying drawings.

[0028] like Figure 1 、 Figure 2 As shown, an automatic disassembly and assembly device for a unit brake cylinder includes a base 1, a rotating platform 2, a bolt head fixing mechanism 3, a gantry 4, a slide 5, a driving mechanism 6 and a nut rotating mechanism 7.

[0029] like Figure 1 、 Figure 2 As shown, the base 1 is horizontally set on the ground, and the rotating platform 2 includes a bottom plate 21, a top plate 22 and columns 23. The bottom plate 21 is horizontally connected to the base 1, the top plate 22 is horizontally set above the bottom plate 21, and the columns 23 are vertically set around the bottom plate 21 and the top plate 22.

[0030] like Figure 1 、 Figure 2 As shown, bottom plate 21 supports the unit brake cylinder, and top plate 22 is provided with a positioning hole 24 for the lower end of the unit brake cylinder to pass through. Clamping blocks 25 are horizontally and relatively slidably mounted on bottom plate 21. A bidirectional screw 26 is horizontally and rotatably connected within bottom plate 21. Bidirectional screw 26 is threadedly connected to a pair of clamping blocks 25, and a handwheel 27 is provided at the outer end of bidirectional screw 26.

[0031] like Figure 3As shown, the bolt head fixing mechanism 3 is provided on the top plate 22 and is used to be sleeved on the outer wall of the bolt head. The bolt head fixing mechanism 3 includes a fixing rod 31 , a fixing tube 32 , a spring 33 , a positioning plate 34 and a positioning column 35 .

[0032] like Figure 3 As shown, a fixing rod 31 vertically passes through the top plate 22, a fixing tube 32 vertically slides and is connected to the outer wall of the fixing rod 31, and a groove 36 for a bolt head to be inserted is provided at the upper end thereof, and a spring 33 is provided between the fixing rod 31 and the fixing tube 32. A positioning plate 34 is provided at the lower end of the fixing rod 31, a positioning post 35 is vertically provided on the upper end surface of the positioning plate 34, and a positioning groove 37 is provided on the lower end surface of the top plate 22 for the positioning post 35 to slide.

[0033] like Figure 3 As shown, the gantry 4 is mounted on the base 1 and spans the rotating table 2. The slide 5 is vertically slidably connected to the gantry 4. The drive mechanism 6 is used to control the vertical sliding of the slide 5. The drive mechanism 6 includes an electric cylinder 61 and a guide rod 62. The electric cylinder 61 is mounted on the gantry 4 and connected to the slide 5. The guide rod 62 is vertically mounted on the slide 5 and passes through the gantry 4.

[0034] like Figure 3 As shown, the nut rotating mechanism 7 is arranged on the slide 5 and is used to control the rotation of the nut. The nut rotating mechanism 7 includes a mounting tube 71 , a mounting rod 72 , an elastic member 73 and a motor 74 .

[0035] like Figure 3 As shown, a mounting tube 71 is vertically mounted on the slide 5, a mounting rod 72 is vertically slidably connected to the mounting tube 71, and an elastic member 73 is disposed between the mounting tube 71 and the mounting rod 72. A slot 75 for inserting a nut and a bolt rod is provided at the lower end of the mounting rod 72, and a magnet 76 is embedded in the inner wall of the slot 75. A motor 74 is mounted on the slide 5 and connected to the mounting tube 71. A torque sensor 77 is disposed between the shaft of the motor 74 and the mounting tube 71.

[0036] When the bolts on the unit brake cylinder need to be removed, the unit brake cylinder is placed on the rotating table 2, and the lower end of the unit brake cylinder is passed through the positioning hole 24 on the top plate 22 and placed on the bottom plate 21. The lower end of the unit brake cylinder can be embedded in the slot on the bottom plate 21, achieving precise positioning of the unit brake cylinder during placement. The handwheel 27 is then controlled to rotate the bidirectional screw 26, which drives the pair of clamping blocks 25 closer together, clamping and fixing the unit brake cylinder, increasing stability during maintenance.

[0037] And when the unit brake cylinder is placed, if the bolt head on the unit brake cylinder is just aligned with the groove 36 on the fixed tube 32, the bolt head is automatically embedded in the groove 36. If the bolt head is misaligned with the groove 36, the fixed tube 32 will be pressed to move downward and the spring 33 will be compressed. At this time, the fixed rod 31 is controlled to rotate and drive the fixed tube 32 to rotate synchronously, and when the groove 36 on the fixed tube 32 is aligned with the bolt head, the fixed tube 32 is slid upward and sleeved on the outer wall of the bolt head under the elastic force of the spring 33.

[0038] When the bolt is tightened or loosened, the fixed rod 31 and the fixed tube 32 rotate synchronously, drive the positioning plate 34 and the positioning column 35 to move synchronously, and when the positioning column 35 abuts against one end of the positioning groove 37, no further rotation will occur, thereby achieving clamping and fixing of the bolt head and limiting rotation of the bolt.

[0039] Then the motor 74 is started to drive the mounting tube 71 and the mounting rod 72 to rotate synchronously, and at the same time, the sliding table 5 is driven by the electric cylinder 61 to slide downward and stably vertically slide under the cooperation of the guide rod 62.

[0040] When the mounting rod 72 rotates and slides downward, the clamping groove 75 at the lower end of the mounting rod 72 gradually sleeves on the bolt and approaches the nut. When the clamping groove 75 is not aligned with the nut, the nut drives the mounting rod 72 to slide upward, and at this time, the elastic member 73 is compressed. When the clamping groove 75 is aligned with the nut, the elastic member 73 is opened and drives the mounting rod 72 to slide downward, so that the clamping groove 75 sleeves on the outer wall of the nut and drives the nut to rotate together with the mounting rod 72.

[0041] When the nut is loosened, the electric cylinder 61 gradually moves upward, thereby gradually rotating the nut off the bolt, and finally the nut is separated from the bolt and stored in the clamping groove 75 under the action of the magnet 76 in the clamping groove 75. Then the nut is manually removed, and the rotating table 2 is controlled to rotate one station to achieve disassembly of the next nut.

[0042] When all the nuts are disassembled, the upper cover of the unit brake cylinder can be opened for maintenance, and during the maintenance process, the bolt is in a fixed state, so when the upper cover of the unit brake cylinder is buckled, the mounting nut can be directly rotated.

[0043] During the installation of the nut, the nut can be preliminarily tightened on the bolt, and then the tightening operation is performed. The tightening process is opposite to the loosening process, which will not be described herein. When the bolt is tightened, since the torque sensor 77 is arranged, the torque value can be monitored and displayed in real time during the tightening of the bolt, so that the nut can be screwed in place at one time and the installation efficiency is improved.

[0044] The specific embodiment is only an interpretation of the utility model, and is not a limitation of the utility model. A person skilled in the art can make modifications to the embodiment without creative contribution according to needs after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, the utility model is protected by the Patent Law.

Claims

1. An automatic disassembly and assembly device for a unit brake cylinder, characterized in that: include: A base (1) is horizontally arranged on the ground; A rotating platform (2) comprises a bottom plate (21), a top plate (22) and a column (23), wherein the bottom plate (21) is horizontally rotatably connected to the base (1), the top plate (22) is horizontally arranged above the bottom plate (21), and the columns (23) are vertically arranged around the bottom plate (21) and the top plate (22), the bottom plate (21) is used to support a unit brake cylinder, and the top plate (22) is provided with a positioning hole (24) for the lower end of the unit brake cylinder to penetrate; A bolt head fixing mechanism (3) is provided on the top plate (22) and is used to be sleeved on the outer wall of the bolt head; A gantry (4) is arranged on the base (1) and spans the rotating platform (2); A slide (5) is vertically slidably connected to the gantry (4); A driving mechanism (6) for controlling the vertical sliding of the slide (5); The nut rotating mechanism (7) is arranged on the slide (5) and is used to control the rotation of the nut.

2. The automatic disassembly and assembly device of a unit brake cylinder according to claim 1, characterized in that: The bolt head fixing mechanism (3) comprises a fixing rod (31), a fixing tube (32), a spring (33), a positioning plate (34) and a positioning column (35); the fixing rod (31) vertically passes through the top plate (22); the fixing tube (32) is vertically slidably connected to the outer wall of the fixing rod (31), and the upper end is provided with a groove (36) for the bolt head to be embedded; the spring (33) is provided between the fixing rod (31) and the fixing tube (32); the positioning plate (34) is provided at the lower end of the fixing rod (31); the positioning column (35) is vertically provided on the upper end surface of the positioning plate (34); and the lower end surface of the top plate (22) is provided with a positioning groove (37) for the positioning column (35) to slide.

3. The automatic disassembly and assembly device of a unit brake cylinder according to claim 1, characterized in that: The nut rotating mechanism (7) includes a mounting tube (71), a mounting rod (72), an elastic member (73) and a motor (74); the mounting tube (71) is vertically arranged on the slide (5); the mounting rod (72) is vertically slidably connected to the mounting tube (71); the elastic member (73) is arranged between the mounting tube (71) and the mounting rod (72); a slot (75) for inserting a nut and a bolt rod is provided at the lower end of the mounting rod (72); the motor (74) is arranged on the slide (5) and connected to the mounting tube (71).

4. The automatic disassembly and assembly device of a unit brake cylinder according to claim 3, characterized in that: A magnet (76) is embedded in the inner wall of the slot (75).

5. The automatic disassembly and assembly device of a unit brake cylinder according to claim 3, characterized in that: A torque sensor (77) is provided between the shaft of the motor (74) and the mounting tube (71).

6. The automatic disassembly and assembly device of a unit brake cylinder according to claim 1, characterized in that: The driving mechanism (6) includes an electric cylinder (61) and a guide rod (62). The electric cylinder (61) is arranged on the gantry (4) and connected to the slide (5). The guide rod (62) is vertically arranged on the slide (5) and passes through the gantry (4).

7. The automatic disassembly and assembly device of a unit brake cylinder according to claim 1, characterized in that: A clamping block (25) is horizontally and relatively slidably arranged on the bottom plate (21), and a bidirectional screw (26) is horizontally rotatably connected in the bottom plate (21). The bidirectional screw (26) is threadedly connected to a pair of the clamping blocks (25), and a hand wheel (27) is arranged at the outer end of the bidirectional screw (26).

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