A kind of clutch brake device of swing bed shot blasting machine motor

Abstract

A kind of motor of swing bed shot blasting machine is embraced brake device, belong to mechanical equipment field.It include support, base, cylinder and motor, the support and motor are fixed on base;The end of the rotating shaft of motor is connected with friction disc, and cylinder is fixed on support, and the end of piston rod of cylinder is equipped with friction block, when cylinder works, piston rod extends and makes friction block and friction disc produce friction to form braking friction torque, so that motor slows down and stops.When power off, the piston rod of cylinder is retracted, and the motor works;When power on, the piston rod of cylinder drives friction block to extend and contact with friction disc to produce friction braking, so that the motor stops working.The utility model provides a kind of motor of swing bed shot blasting machine is embraced brake device, the device is simple and practical, failure rate is low, maintenance is convenient, maintenance cost is low, has mature application in actual production, and obtains good effect.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical equipment, specifically relating to a brake device for a motor of a swing bed shot blasting machine. Background Technology

[0002] The existing swing-bed shot blasting machine uses an electromagnetic brake for motor braking. This braking method has the following problems: (1) The brake coil is always energized when the motor is working, and the coil is only de-energized when the motor is not working. This causes the coil to be energized for a long time, which can easily cause it to overheat and burn out. (2) The swing-bed shot blasting machine has a harsh working environment. Shot blasting particles and iron filings in the workshop can easily seep into the coil spring, causing it to jam. The spring stroke is difficult to adjust, and jamming can easily cause the brake coil and motor to burn out, resulting in a very high failure rate. (3) The brake coil and motor are imported parts, which are expensive and difficult and costly to maintain.

[0003] Therefore, it is necessary to design a simple, practical, low-failure-rate, easy-to-maintain, and low-cost motor holding brake device to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a holding brake device for the motor of a swing bed shot blasting machine, so as to solve the above-mentioned technical problems existing in the electromagnetic holding brake of the motor of the existing swing bed shot blasting machine.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A brake device for a motor of a rotary shot blasting machine includes a bracket, a base, a cylinder, and a motor. The bracket and the motor are mounted and fixed on the base. A friction disc is connected to the end of the motor's rotating shaft. A cylinder is mounted and fixed on the bracket. A friction block is installed at the end of the piston rod of the cylinder. When the cylinder is working, the piston rod extends, causing the friction block to rub against the friction disc, generating a braking friction torque that decelerates and brakes the motor until it stops.

[0007] As a preferred technical solution of this utility model, the structure of the holding brake device includes:

[0008] The bracket is fixed with a support plate, on which two station plates are fixedly mounted, and each station plate is fixedly equipped with a cylinder. The friction disc is connected to the end of the rotating shaft on the motor via a key. Based on the basic principle of friction braking, friction braking is achieved through the contact between the friction block and the friction disc. The pneumatic control system is set as follows: when power is off, the piston rod of the cylinder retracts, and the motor operates; when power is on, the piston rod of the cylinder drives the friction block to extend and contact the friction disc, generating friction braking and stopping the motor.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] This utility model proposes a brake device for the motor of a swing bed shot blasting machine. The device is simple, practical, has a low failure rate, is easy to maintain, and has low maintenance costs. It has been successfully applied in actual production and has achieved good results. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the holding brake device (in the unbraked state).

[0012] Figure 2 This is a schematic diagram of the brake device (in braking state).

[0013] The meanings of the reference numerals in the figure are as follows:

[0014] 1-Bracket, 2-Cylinder, 3-Station plate, 4-Hex socket screw, 5-Friction block, 6-Flat key, 7-Friction disc, 8-Motor, 9-Bolt, 10-Base, 11-Support plate, 12-Piston rod. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings.

[0016] Please see Figure 1 As shown, the brake device for the motor of the swing bed shot blasting machine proposed in this utility model mainly consists of a bracket 1, a cylinder 2, a station plate 3, an internal hexagon screw 4, a friction block 5, a flat key 6, a friction disc 7, a motor 8, a bolt 9, a base 10, a support plate 11, and a piston rod 12.

[0017] The functions of the brake device of the motor of the swing bed shot blasting machine of this utility model are as follows: the bracket 1 is fixed to the base 10 by welding, and the motor 8 is fixed to the base 10 by bolts 9. A support plate 11 is welded to the bracket 1, and two station plates 3 are fixed on the support plate 11. A cylinder 2 is fixed to each of the two station plates 3 by hexagonal screws 4, and a friction block 5 is threadedly connected to the end of the piston rod 12 of the cylinder 2. On the other side of the motor output end, the friction disc 7 is connected to the shaft of the motor 8 by a flat key 6.

[0018] The bracket 1, support plate 11, and station plate 3 are used to fix and install the two cylinders 2. The piston rod 12 of the cylinder 2 is equipped with two friction blocks 5. The friction disc 7 on the shaft of the motor 8 is used so that when the piston rod 12 of the cylinder 2 extends, the friction blocks 5 and the friction disc 7 come into contact with each other, generating friction and forming a braking friction torque, which slows down the motor until it stops.

[0019] The working principle of the brake device of the motor of the swing bed shot blasting machine of this utility model is as follows: Based on the basic principle of friction braking, a friction disc 7 is installed on the rotating shaft of the motor 8, and two cylinders 2 are symmetrically installed on the bracket 1. Two friction blocks 5 are fixed on the piston rod 12 of the cylinder 2. The friction blocks 5 and the friction disc 7 are used for friction braking. The pneumatic control system is set so that when the power is off, the piston rod 12 of the cylinder 2 retracts, and the motor 8 operates. See Figure 1 When energized, the piston rod 12 of cylinder 2 drives the friction block 5 to extend and contact the friction disc 7, generating friction braking and stopping the motor 8. (See...) Figure 2 .

[0020] The innovative design of the brake device for the motor of the swing bed shot blasting machine of this utility model is as follows: (1) The existing non-friction electromagnetic braking method is changed to a friction braking method. The electromagnetic brake coil is removed and replaced with an SC32×25 cylinder. The control system is changed to de-energize when the motor is working and energize when the motor is not working to perform brake braking. (2) Two cylinders are symmetrically arranged. The friction torque of the braking is formed by the friction block installed on the piston rod of the two cylinders and the friction disc, so that the motor decelerates and brakes. (3) The friction block and friction disc are wear consumable parts. They are made of gray cast iron of grade HT250 and are normalized. The hardness reaches 190~240HBW. They can withstand the high temperature and high pressure generated during braking and have good wear resistance, toughness and heat dissipation.

Claims

1. A brake device for a motor of a swing-bed shot blasting machine, characterized in that, The device includes a bracket (1), a base (10), a cylinder (2), and a motor (8). The bracket (1) and the motor (8) are mounted and fixed on the base (10). The end of the shaft of the motor (8) is connected to a friction disc (7). The cylinder (2) is mounted and fixed on the bracket (1). The piston rod (12) of the cylinder (2) is equipped with a friction block (5). When the cylinder (2) is working, the piston rod (12) extends to cause the friction block (5) to rub against the friction disc (7) to form a braking friction torque, which slows down the motor until it stops.

2. The brake device for the motor of the swing-bed shot blasting machine as described in claim 1, characterized in that, The bracket (1) is fixed with a support plate (11), and two station plates (3) are fixed on the support plate (11). A cylinder (2) is fixedly installed on each of the two station plates (3).

3. The brake device for the motor of the swing-bed shot blasting machine as described in claim 1, characterized in that, The friction disc (7) is connected to the end of the shaft on the motor (8) via a flat key (6).

4. The brake device for the motor of the swing-bed shot blasting machine as described in any one of claims 1-3, characterized in that, Based on the basic principle of friction braking, friction braking is achieved by the contact between the friction block (5) and the friction disc (7). The air pressure control system is set as follows: when the power is off, the piston rod (12) of the cylinder (2) retracts and the motor (8) works; when the power is on, the piston rod (12) of the cylinder (2) drives the friction block (5) to extend and contact the friction disc (7) to generate friction braking, so that the motor (8) stops working.

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