Disassembling system special for clutch brake

Abstract

The utility model relates to the technical field of press maintenance, and discloses a special disassembly system for a clutch brake, which comprises a puller capable of horizontally moving and moving up and down; the power source is used for providing power for the puller; the gear disassembling mechanism comprises a gear butt chuck, a transition receiving disc connected with the puller, and a pull rod for connecting the gear butt chuck and the transition receiving disc; the bracket disassembling mechanism comprises a transition receiving disc connected with the puller and a pull rod for connecting the transition receiving disc with the bracket; the gear pair chuck is designed to be of a halving stepped structure based on the gear end face structure, the contact between the gear pair chuck and a gear shaft shoulder and the end face is a drawing stress face, and evenly and symmetrically distributed pull rods can provide evenly distributed axial drawing force. One end, connected with the transition receiving disc, of the pull rod is adjusted through a nut to ensure that the transition receiving disc is parallel to the bracket, so that the pull force of the pull rod acting on the bracket is parallel axial force; a gas-liquid double-supply hydraulic power source composed of a pneumatic pump and an electric plunger pump can provide continuous and stable drawing force.

Description

Technical Field

[0001] The utility model relates to the technical field of press maintenance, and more particularly to a special disassembly system for a clutch and brake. Background Art

[0002] The core components of the transmission system of the double-point closed mechanical press are the dry clutch and brake. After 5,800 hours of operation, the transmission gear, clutch bracket and brake bracket need to be disassembled for maintenance. The disassembly accuracy directly affects the performance of the clutch and brake, and the original disassembly method requires manual graded disassembly, which cannot meet the accuracy requirements. The disassembly process can easily lead to deformation and damage of the transmission gear tooth profile, damage to the gear inner hole and the main shaft mating surface, deformation of the clutch and brake bracket, and strain on the inner hole and main shaft. The above disadvantages will cause transmission shock, noise, and sudden changes in the clutch and brake timing, affecting the clutch and brake function and posing a safety hazard.

[0003] The transmission gear is the link for the transmission of motion between the clutch, brake and eccentric gear system, and has an interference fit with the bearing. The separation of the gear and the main shaft requires an evenly distributed circumferential axial force to pull the gear down. The pulling process should be a balanced and continuous pulling force. If the force acting on the gear is not evenly distributed, the inner hole of the gear and the main shaft will lose coaxiality during the pulling process. If the pulling force is not a continuous pulling force but an intermittent impact pulling force, accompanied by an imbalance in coaxiality, the mating surface between the inner hole of the gear and the main shaft will be burred, resulting in mechanical nodules and damaging the roughness of the mating surface. Under the action of the impact load, the gear and the shaft will have serious defects such as relative rotation. There is a transmission gear disassembly mechanism that welds one end of a tempered steel rod to the transmission gear and connects the other end to the top plate with a nut. One end of the jack contacts the main shaft and the other end contacts the top plate. The jack is pushed out and stretched to pull the gear away from the main shaft. The disadvantages of the above disassembly method are: welding stress is generated after gear welding and the tooth profile is deformed. After cutting the welding rod, the welding tooth surface needs to be repaired to damage the tooth profile. After the tooth profile is ground, the tooth shape size becomes smaller, the meshing tooth side clearance increases, and the meshing transmission generates impact force and noise. The mechanical jack provides intermittent pulling force, and the intermittent pulling force and the reaction force during the intermittent period cause tensile defects on the mating surface.

[0004] The clutch and brake brackets and the main shaft are assembled with interference fit. The disassembly process must ensure the flatness of the wheel and the roughness of the fit between the inner hole and the main shaft. If the wheel is deformed, the friction block will be obstructed during movement, affecting the clutch and brake timing function, and will cause the friction block to break. If the tolerance of the fit between the inner hole and the main shaft changes, it will cause the bracket and the main shaft to rotate relative to each other, which will cut off the friction block and increase the braking distance. The existing disassembly method is to weld one end of the pull rod to the bracket and the other end to the support plate, and pull it with a jack. This structure makes it difficult to ensure that the pulling force applied by the two pull rods is a balanced force. The additional intermittent pulling force causes the bracket to deform. The disadvantages caused by the deformation of the bracket are as mentioned above, which is extremely harmful. Utility Model Content

[0005] The purpose of the utility model is to provide a special disassembly system for clutch and brake to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A clutch and brake disassembly system is used to disassemble gears and clutch or brake brackets, comprising:

[0008] The centering adjustable pulling device 100 includes a moving trolley 110, a puller 120, and a height adjustment mechanism 130 mounted on the moving trolley 110 and capable of driving the puller 120 to move up and down;

[0009] A power source 200 connected to the puller 120 to provide power thereto;

[0010] The gear disassembly mechanism 300 includes a gear chuck 310, a first transition plate 320 and at least two first pull rods 330; one side of the gear chuck 310 is provided with an inwardly recessed recess 311, thereby forming a stepped structure, and the gear chuck 310 is composed of at least two chucks 312 that are detachably connected to each other, and a plurality of the chucks 312 evenly divide the recess 311; the first transition plate 320 is connected to the puller 120, and the edge of the first transition plate 320 is evenly distributed with a number of first notches 321 that is not less than the number of the first pull rods 330; one end of each first pull rod 330 is threadedly connected to the gear chuck 310, and the other end passes through the corresponding first notch 321 and is fastened by a nut, and a plurality of first pull rods 330 are evenly and symmetrically distributed on the periphery of the recess 311;

[0011] The bracket disassembly mechanism 400 includes a second transition plate 410 and at least two second pull rods 420; the second transition plate 410 is connected to the puller 120, and the edge of the second transition plate 410 is evenly distributed with a number of second notches 411 that is no less than the number of second pull rods 420; one end of each second pull rod 420 is threadedly connected to the bracket, and the other end passes through the corresponding second notch 411 and is fastened by a nut.

[0012] Furthermore, the puller 120 is powered by hydraulic pressure, and the power source 200 includes a pneumatic pump 210, an electric plunger pump 220 and a dual-supply control system 230. The pneumatic pump 210 and the electric plunger pump 220 are both connected to the puller 120. The dual-supply control system 230 controls the pneumatic pump 210 and the electric plunger pump 220 to supply oil to the puller 120 simultaneously, thereby filling in the pulse gaps and forming continuous and uninterrupted hydraulic power.

[0013] Furthermore, the power source 200 further includes a wheeled cart 240 , and the pneumatic pump 210 , the electric plunger pump 220 and the dual-supply control system 230 are all installed on the cart 240 .

[0014] Furthermore, connecting ears 313 are provided on both sides of the chuck 312 , and the corresponding connecting ears 313 between the multiple chucks 312 are detachably connected by bolts.

[0015] Furthermore, the number of the first pull rods 330 is four.

[0016] Furthermore, the first transition plate 320 and the second transition plate 410 are both detachably connected to the puller 120 .

[0017] Furthermore, the number of the second pull rods 420 is two.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The utility model provides a special disassembly system for clutch brakes. The gear chuck of the gear disassembly mechanism is designed as a center-split stepped structure based on the gear shape and end face structure. The gear chuck is clamped on the gear. The stepped structure of the gear chuck contacts the gear positioning shoulder and the gear end face as a drawing force surface. It is connected to the puller through multiple evenly and symmetrically distributed pull rods. During the drawing process, the axial drawing force acts evenly on the gear end face, which is fully integrated with the gear, eliminating the problem of imbalance in the coaxiality of the gear inner hole and the main shaft and damage to the gear due to uneven force at two points caused by the previous pulling and disassembly method of welding the pull rod to the tooth profile; the bracket disassembly mechanism is connected to the pull rod through the transition joint. A notch corresponding to the inner hole of the bracket is provided on the disk, and the notch and the corresponding inner hole on the bracket are connected by a pull rod. Under the action of the puller, the pull rod pulls the bracket out of the shaft, and the end of the pull rod connected to the transition plate can be adjusted for balance by a nut to ensure that the transition plate is parallel to the bracket, thereby ensuring that the pulling force exerted by the two pull rods on the bracket is a balanced axial force, avoiding deformation of the bracket under the action of unbalanced force, and defects such as roughness on the matching hole surface; a continuous and stable pulling force is provided by a gas-liquid dual-supply hydraulic power source composed of a pneumatic pump and an electric plunger pump, which solves the problem of damage to the inner hole and the main shaft due to intermittent and unbalanced pulling force, which leads to changes in tolerance matching data, and ensures the accuracy of disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic structural diagram of a clutch brake disassembly system according to an embodiment;

[0022] Figure 2 A schematic diagram of the connection structure of a clutch brake disassembly system when disassembling a gear in one embodiment;

[0023] Figure 3 A schematic diagram of the connection structure of a clutch brake disassembly system when disassembling a bracket in one embodiment;

[0024] Figure 4 A schematic structural diagram of a centering adjustable drawing device in one embodiment;

[0025] Figure 5 A schematic diagram of the structure of the connection between the centering adjustable pulling device and the gear disassembling mechanism in one embodiment;

[0026] Figure 6 A schematic diagram of the structure of the connection between the centering adjustable pulling device and the bracket disassembly mechanism in one embodiment;

[0027] Figure 7 A schematic structural diagram of a power source in one embodiment;

[0028] Figure 8 A schematic diagram of the control logic of a power source in one embodiment;

[0029] Figure 9 A schematic structural diagram of a gear disassembly mechanism in one embodiment;

[0030] Figure 10 A schematic diagram of the connection between a gear disassembling mechanism and a gear in one embodiment;

[0031] 100. Centering adjustable pulling device, 110. Moving trolley, 120. Puller, 130. Height adjustment mechanism;

[0032] 200. Power source, 210. Pneumatic pump, 220. Electric plunger pump, 230. Dual supply control system, 240. Cart;

[0033] 300. Gear disassembly mechanism, 310. Gear chuck, 311. Recessed portion, 312. Chuck, 313. Connecting ear, 320. First transition plate, 321. First notch, 330. First pull rod;

[0034] 400. Bracket disassembly mechanism, 410. Second transition plate, 411. Second notch groove, 420. Second pull rod;

[0035] 500. Gear, 510. Shaft shoulder;

[0036] 600. Bracket, 610. Inner hole. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] See Figures 1 to 10 This embodiment provides a clutch and brake disassembly system for disassembling a gear 500 and a clutch or brake bracket 600. The clutch and brake disassembly system includes: a centering adjustable pulling device 100, a power source 200, a gear disassembly mechanism 300, and a bracket disassembly mechanism 400.

[0039] The centering adjustable pulling device 100 includes a moving trolley 110, a puller 120 and a height adjustment mechanism 130. The moving trolley 110 can move freely, the height adjustment mechanism 130 is installed on the moving trolley 110, and the puller 120 is installed on the height adjustment mechanism 130; the height adjustment mechanism 130 can drive the puller 120 to move up and down, so that the puller 120 and the detachable parts are centered and aligned; the structural form of the height adjustment mechanism 130 is not limited, and a screw-type lifting mechanism or a guide rail lifting mechanism can be used.

[0040] The power source 200 is connected to the puller 120 and provides power thereto, so that the puller 200 generates a pulling force.

[0041] In this embodiment, the puller 120 is powered by hydraulic pressure. The power source 200 includes a pneumatic pump 210, an electric piston pump 220, a dual-supply control system 230, and a wheeled cart 240. The pneumatic pump 210, the electric piston pump 220, and the dual-supply control system 230 are all mounted on the cart 240 for easy mobility. The pneumatic pump 210 and the electric piston pump 220 are connected to the puller 120 via explosion-proof high-pressure hoses. The dual-supply control system 230 controls the pneumatic pump 210 and the electric piston pump 220 through a control valve assembly to simultaneously supply oil to the puller 120, compensating for pulse gaps and generating continuous, uninterrupted hydraulic power.

[0042] The gear disassembling mechanism 300 is used to clamp the gear 500 to be disassembled and connect the gear 500 to the puller 120 . The gear disassembling mechanism 300 includes a gear chuck 310 , a first transition plate 320 , and four first pull rods 330 .

[0043] The gear pair chuck 310 is constructed as a roughly circular disc-shaped component. The center position of one side of the gear pair chuck 310 is based on the shape and end face structure of the gear 500, and is provided with an inwardly recessed recess 311, so that the side of the gear pair chuck 310 forms a stepped structure. At the same time, the gear pair chuck 310 is evenly and symmetrically divided into two chucks 312. The two chucks 312 divide the recess 311 equally. After the two chucks 312 are spliced, the stepped structure of the gear pair chuck 310 contacts the shaft shoulder 510 and the end face of the gear 500; each of the chucks 312 is provided with connecting ears 313 on both sides. After the two chucks 312 are spliced, the corresponding connecting ears 313 are detachably connected by bolts to realize the detachable connection between the two chucks 312.

[0044] The first transition plate 320 is connected to the puller 120, and the edge of the first transition plate 320 is evenly distributed with first notch grooves 321, which are no less than the number of the first pull rods 330; one end of each first pull rod 330 is threadedly connected to the gear chuck 310, and the other end passes through the corresponding first notch groove 321 and is fastened by a nut. The four first pull rods 330 are evenly and symmetrically distributed on the periphery of the recessed portion 311.

[0045] In another embodiment, the number of the first pull rods 330 can be designed according to actual needs, but the number cannot be less than two.

[0046] The bracket disassembly mechanism 400 includes a second transition plate 410 and two second pull rods 420; the second transition plate 410 is connected to the puller 120, and the edge of the second transition plate 410 is evenly distributed with a number of second notches 411 that is no less than the number of second pull rods 420; one end of each second pull rod 420 is threadedly connected to the inner hole 610 of the bracket 600, and the other end passes through the corresponding second notch 411 and is fastened by a nut.

[0047] In another embodiment, the number of the second pull rods 420 can be designed according to actual needs, but the number cannot be less than two.

[0048] In this embodiment, the first transition plate 320 and the second transition plate 410 are both detachably connected to the puller 120 , so the gear disassembling mechanism 300 and the bracket disassembling mechanism 400 can share one puller 120 .

[0049] The working principle of a clutch and brake disassembly system provided in this embodiment is as follows:

[0050] When disassembling the gear 500, first clamp the two chucks 312 on the shoulder 510 at one end of the gear 500 and tighten them with bolts so that the stepped structure of the gear chuck 310 contacts the shoulder 510 of the gear 500 and the end face of the gear; then, one end of the four first pull rods 330 is threadedly connected to the gear chuck 310 respectively, and the other end passes through the first notch groove 321 on the edge of the first transition plate 320, and is adjusted and tightened with nuts so that the first transition plate 320 and the gear chuck 310 remain parallel; after the connection is completed, start the power source 200, and the dual-supply control system 230 controls the pneumatic pump 210 and the electric plunger pump 220 through the control valve group to superimpose and supply oil to the puller 120 at the same time, The pulse gaps are filled up by each other to form a continuous and uninterrupted hydraulic power. The puller 120 outputs a continuous, balanced and uninterrupted pulling force to pull the gear 500 away from the main shaft. Since the recessed portion 311 on the side of the gear chuck 310 is based on the shoulder 510 and end face structure design of the gear 500, the recessed portion 311 can wrap the shoulder 510 of the gear 500, so that the side of the gear chuck 310 contacts the end face of the gear 500. The four first pull rods 330 are symmetrically and evenly distributed on the periphery of the recessed portion 311, that is, symmetrically and evenly distributed on the periphery of the circumference of the gear 500. Therefore, the axial pulling force generated by the puller 120 acts evenly on the end face of the gear 500 through the four first pull rods 330.

[0051] When disassembling the bracket 600 of the clutch or brake, first, one end of the two second tie rods 420 is selected to connect with the two symmetrical inner holes 610 on the bracket 600, and then the other ends of the two second tie rods 420 are passed through the second notch grooves 411 on the edge of the second transition plate 410 and adjusted and tightened with nuts to keep the second transition plate 410 and the bracket 600 parallel and firmly connected; after the connection is completed, the power source 200 is started, and the dual-supply control system 230 controls the pneumatic pump 210 and the electric plunger pump 220 through the control valve group to simultaneously supply oil to the puller 120, make up for the pulse gaps, and form continuous and uninterrupted hydraulic power. The puller 120 outputs a continuous, balanced and uninterrupted pulling force to pull the bracket 600 away from the main shaft.

[0052] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A clutch and brake disassembly system, used for disassembling gears and clutch or brake brackets, characterized in that: include: A centering adjustable pulling device (100) comprises a moving trolley (110), a puller (120), and a height adjustment mechanism (130) mounted on the moving trolley (110) and capable of driving the puller (120) to move up and down; a power source (200) connected to the puller (120) to provide power thereto; A gear disassembling mechanism (300) comprises a gear chuck (310), a first transition plate (320) and at least two first pull rods (330); a side surface of the gear chuck (310) is provided with an inwardly recessed recess (311) to form a stepped structure; the gear chuck (310) is composed of at least two chucks (312) detachably connected to each other, and the plurality of chucks (312) evenly divide the recess (311); the first transition plate (320) Connected to the puller (120), the edge of the first transition plate (320) is evenly distributed with first notch grooves (321) whose number is not less than the number of the first pull rods (330); one end of each first pull rod (330) is threadedly connected to the gear chuck (310), and the other end passes through the corresponding first notch groove (321) and is fastened by a nut, and multiple first pull rods (330) are evenly and symmetrically distributed on the periphery of the recessed portion (311); A bracket disassembly mechanism (400) comprises a second transition plate (410) and at least two second pull rods (420); the second transition plate (410) is connected to the puller (120), and the edge of the second transition plate (410) is evenly distributed with second notch grooves (411) whose number is not less than the number of the second pull rods (420); one end of each second pull rod (420) is threadedly connected to the bracket, and the other end passes through the corresponding second notch groove (411) and is fastened by a nut.

2. A clutch and brake disassembly system according to claim 1, characterized in that: The puller (120) is powered by hydraulic pressure. The power source (200) includes a pneumatic pump (210), an electric plunger pump (220) and a dual-supply control system (230). The pneumatic pump (210) and the electric plunger pump (220) are both connected to the puller (120). The dual-supply control system (230) controls the pneumatic pump (210) and the electric plunger pump (220) to supply oil to the puller (120) simultaneously, thereby compensating for pulse gaps and forming continuous and uninterrupted hydraulic power.

3. The clutch and brake disassembly system according to claim 2, characterized in that: The power source (200) further includes a wheeled cart (240), and the pneumatic pump (210), the electric plunger pump (220) and the dual-supply control system (230) are all installed on the cart (240).

4. The clutch and brake disassembly system according to claim 1, characterized in that: Connecting ears (313) are provided on both sides of the clamping disc (312), and the corresponding connecting ears (313) between the plurality of clamping discs (312) are detachably connected by bolts.

5. The clutch and brake disassembly system according to claim 1, characterized in that: The number of the first pull rods (330) is four.

6. The clutch and brake disassembly system according to claim 1, characterized in that: The first transition plate (320) and the second transition plate (410) are both detachably connected to the puller (120).

7. The clutch and brake disassembly system according to claim 1, characterized in that: The number of the second pull rods (420) is two.

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