A motor brake device for hot rolling coiling mandrel

Abstract

The utility model discloses a hot rolling coiling mandrel motor brake device, including a base, a first brake arm, a second brake arm and a brake shoe, wherein the first brake arm is hinged on the base, the second brake arm is hinged on the base and is located on the other side of the first brake arm, the brake shoe is symmetrically provided in two groups, the brake shoe is hinged on the first brake arm and the second brake arm respectively, the first brake arm is rotatably provided with a first shoulder shaft, the second brake arm is rotatably provided with a second shoulder shaft, and also includes a brake structure, the brake structure includes a hydraulic cylinder, a spacer and a pull rod, the hydraulic cylinder is installed on the first brake arm, the spacer is penetrated on the second shoulder shaft, the pull rod is installed on the piston rod of the hydraulic cylinder and slides through the spacer, and the pull rod slides through the first shoulder shaft. The utility model relates to the field of motor brake device design, and specifically refers to a hot rolling coiling mandrel motor brake device.

Description

Technical Field

[0001] The utility model relates to the field of motor brake device design, in particular to a hot rolling coiling mandrel motor brake device. Background Art

[0002] When the coiling mandrel motor is set at the tail, it is difficult to adjust the mandrel motor torque, and there are many specifications and models of steel coils, so the mandrel braking torque cannot be well matched with the braking torque required for the corresponding specifications of steel coils; the mandrel motor brake adopts electromagnet braking. When the electromagnet is energized, the brake overcomes the spring force to open. When the electromagnet loses power, the brake closes the brake through the action of the spring. When the electromagnet fails for some reason, the brake automatically closes, causing the mandrel motor to trip. At this time, when steel is being rolled, it will cause scrap steel. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the electromagnet, as a braking body, is likely to cause the brake to be automatically closed after failure, causing the spindle motor to trip.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is as follows: the utility model is a hot rolling coiling mandrel motor brake device, including a base, a first brake arm, a second brake arm and a brake shoe, the first brake arm is hinged on the base, the second brake arm is hinged on the base and is located on the other side of the first brake arm, the brake shoe is symmetrically arranged in two groups, the brake shoe is respectively hinged on the first brake arm and the second brake arm, the first brake arm is rotatably provided with a first shoulder shaft, the second brake arm is rotatably provided with a second shoulder shaft, and also includes a braking structure, the braking structure includes a hydraulic cylinder, a spacer and a pull rod, the hydraulic cylinder is installed on the first brake arm, the spacer is penetrated through the second shoulder shaft, the pull rod is installed on the piston rod of the hydraulic cylinder and slides through the spacer, and the pull rod slides through the first shoulder shaft.

[0005] Furthermore, it also includes an auxiliary device, which includes a spring assembly and an auxiliary assembly. The spring assembly is arranged on the pull rod, and the auxiliary assembly is arranged on the first shoulder shaft. The spring assembly includes a spring seat, a baffle and a spring body. The spring seat is fixedly sleeved on the pull rod, and the baffle is slidably sleeved on the pull rod. The spring body is arranged between the spring seat and the baffle and is located outside the pull rod.

[0006] Furthermore, the auxiliary components are symmetrically provided in two groups, and the auxiliary components include a joint and a screw rod, the joint is provided on the first shoulder shaft, and the screw rod is provided on the joint and fixedly connected to the baffle through a corresponding nut.

[0007] Furthermore, the first brake arm and the second brake arm are respectively provided with a top plate, the top plates are provided with two groups, and the top plates are threadedly connected and penetrated with a hexagonal bolt.

[0008] Preferably, by improving the electromagnetic brake in the prior art, the brake electromagnet is eliminated and replaced with a hydraulic cylinder control method (the current brake model is MW800-10000, and the braking torque is 10000Nm. Through the calculation of the braking torque, when the hydraulic pressure is 10MPa, the hydraulic cylinder bore is designed to be 80mm, the rod diameter is 56mm, and the stroke is 100mm. The hydraulic cylinder is equipped with a position sensor, which can easily realize the stroke of the hydraulic cylinder required for different braking torques).

[0009] The beneficial effects achieved by the utility model using the above structure are as follows:

[0010] 1. The original electromagnetic drive is changed to hydraulic cylinder drive to improve the brake mode.

[0011] 2. By controlling the stroke of the hydraulic cylinder to select different braking torques, the braking torque can be matched with the torque required for the tail of the finished coils of different specifications. It can overcome the shortcomings of the existing electromagnetic brake technology, improve the braking reliability and accuracy, and can be widely used in hot rolling and cold rolling motor braking in the metallurgical industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a hot rolling coiling mandrel motor brake device proposed by the utility model;

[0013] Figure 2 This is a structural schematic diagram of another perspective of a hot rolling coiling mandrel motor brake device proposed by the utility model;

[0014] Figure 3 This is a side view of a hot rolling coiling mandrel motor brake device proposed by the utility model;

[0015] Figure 4 The utility model discloses a control circuit diagram of a hot rolling coiling mandrel motor brake device.

[0016] Among them, 1. base, 2. first brake arm, 3. second brake arm, 4. brake shoe, 5. first shoulder shaft, 6. second shoulder shaft, 7. brake structure, 8. hydraulic cylinder, 9. spacer, 10. pull rod, 11. auxiliary device, 12. spring assembly, 13. auxiliary assembly, 14. spring seat, 15. baffle, 16. spring body, 17. joint, 18. screw, 19. top plate, 20. hexagonal head bolt. DETAILED DESCRIPTION

[0017] like Figure 1~Figure 3As shown, the utility model is a hot rolling coiling mandrel motor brake device, including a base 1, a first brake arm 2, a second brake arm 3 and a brake shoe 4, the first brake arm 2 is hinged on the base 1, the second brake arm 3 is hinged on the base 1 and is located on the other side of the first brake arm 2, the brake shoe 4 is symmetrically provided with two groups, the brake shoe 4 is respectively hinged on the first brake arm 2 and the second brake arm 3, the brake shoe directly contacts the target product, the first brake arm 2 is rotatably provided with a first shoulder shaft 5, the second brake arm 3 is rotatably provided with a second shoulder shaft 6, and also includes a brake structure 7, the brake structure 7 includes a hydraulic cylinder 8, a spacer sleeve 9 and a pull rod 10, the hydraulic cylinder 8 is installed on the first brake arm 2, the spacer sleeve 9 is penetrated through the second shoulder shaft 6, the pull rod 10 is installed on the piston rod of the hydraulic cylinder 8 and slides through the spacer sleeve 9, the pull rod 10 slides through the first shoulder shaft 5, and the hydraulic cylinder 8 replaces the electromagnet.

[0018] It also includes an auxiliary device 11, which includes a spring assembly 12 and an auxiliary assembly 13. The spring assembly 12 is arranged on the pull rod 10, and the auxiliary assembly 13 is arranged on the first shoulder shaft 5. The spring assembly 12 includes a spring seat 14, a baffle 15 and a spring body 16. The spring seat 14 is fixedly sleeved on the pull rod 10, and the baffle 15 is slidably sleeved on the pull rod 10. The spring body 16 is arranged between the spring seat 14 and the baffle 15 and is located outside the pull rod 10. The spring body 16 is stretched when the piston rod of the hydraulic cylinder 8 contracts.

[0019] The auxiliary components 13 are symmetrically provided with two groups, and the auxiliary components 13 include a joint 17 and a screw 18. The joint 17 is arranged on the first shoulder shaft 5, and the screw 18 is arranged on the joint 17 and fixedly connected to the baffle 15 through a corresponding nut. The first brake arm 2 and the second brake arm 3 are respectively provided with a top plate 19, and the top plate 19 is provided with two groups. A hexagonal head bolt 20 is threadedly connected and penetrated on the top plate 19 to assist in positioning the first brake arm 2 and the second brake arm 3.

[0020] During specific use: the hydraulic cylinder 8 realizes control of any stroke position through a displacement sensor and a proportional control valve. During braking, the hydraulic cylinder 8 works, the piston rod retracts, and the spring body 16 extends; after the braking is cancelled, the piston rod extends, and the brake is opened.

[0021] It should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A hot rolling coiling mandrel motor brake device, comprising a base, a first brake arm, a second brake arm and a brake shoe, wherein the first brake arm is hinged on the base, the second brake arm is hinged on the base and is located on the other side of the first brake arm, the brake shoe is symmetrically provided with two groups, and the brake shoe is hinged on the first brake arm and the second brake arm respectively, characterized in that: A first shoulder shaft is rotatably provided on the first brake arm, a second shoulder shaft is rotatably provided on the second brake arm, and a brake structure is also included. The brake structure includes a hydraulic cylinder, a spacer and a pull rod. The hydraulic cylinder is installed on the first brake arm, the spacer is penetrated through the second shoulder shaft, the pull rod is installed on the piston rod of the hydraulic cylinder and slides through the spacer, and the pull rod slides through the first shoulder shaft.

2. A hot rolling coiling mandrel motor brake device according to claim 1, characterized in that: It also includes an auxiliary device, which includes a spring assembly and an auxiliary assembly. The spring assembly is arranged on the pull rod, and the auxiliary assembly is arranged on the first shoulder shaft. The spring assembly includes a spring seat, a baffle and a spring body. The spring seat is fixedly sleeved on the pull rod, and the baffle is slidably sleeved on the pull rod. The spring body is arranged between the spring seat and the baffle and is located outside the pull rod.

3. A hot rolling coiling mandrel motor brake device according to claim 2, characterized in that: The auxiliary components are symmetrically provided with two groups, and the auxiliary components include a joint and a screw rod. The joint is arranged on the first shoulder shaft, and the screw rod is arranged on the joint and fixedly connected with the baffle through a corresponding nut.

4. A hot rolling coiling mandrel motor brake device according to claim 1, characterized in that: The first brake arm and the second brake arm are respectively provided with a top plate, and the top plates are provided with two groups. The top plates are threadedly connected and penetrated with a hexagonal bolt.

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