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Mechanical brake

A brake and mechanical technology, applied in cranes, walking bridge cranes, hoisting devices, etc., can solve the problem of inability to ensure accurate positioning and parking at fixed points, and achieve the effect of accurate positioning and parking at fixed points.

Inactive Publication Date: 2010-03-31
SHENYANG CHINA RAILWAY ANPING BRAKE TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The force of the spring 45 is fixed, and the braking force cannot be changed at any time during work, so it is impossible to guarantee the accuracy of fixed-point positioning and parking

Method used

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  • Mechanical brake
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Embodiment Construction

[0010] The present invention comprises a base 2, and the shafts 3 on both sides of the base 2 are respectively provided with a left brake arm 12 and a right brake arm 6 with a tile shaft 5, and a brake wheel 7 is formed between the tile blocks 4 of the tile shaft 5; One end of the rod base 10 is fixed on the right brake arm 6, and the other end of the cam rod base 10 is provided with a cam rod 16 on the shaft 15 of the pole 20 of the base 2, and the roller 13 on the top of the left brake arm 12 is the same as the cam The cam 14 on the rod 16 is in contact, and the brake release spring 11 is arranged between the roller 13 and the cam rod seat 10; the end of the cam rod 16 is the input shaft 17 of the pedal force, and the return spring 18 is between the pole 20 and the cam rod 16 .

[0011] In order to conveniently adjust the appropriate gap between the brake wheel 7 and the pad 4, the right brake arm 6 is provided with a bolt 9 on the cam lever seat 10, and an adjustment nut 8 ...

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Abstract

The invention discloses a mechanical brake relating to the brake structure improvement of a bridge crane operating mechanism. The mechanical brake can change braking force at any time so as to ensure static fixing parking, and comprises a base. The mechanical brake is structurally characterized in that shafts on two sides of the base are respectively provided with a left braking arm and a right braking arm with bearings, wherein a brake wheel is arranged between blocks of the bearings; one end of a cam lever seat is fixed on the right braking arm and the other end of the cam lever seat is connected to the cam lever with a cam; the cam lever is arranged on the fulcrum level of the bottom seat; a roller wheel on the top end of the left braking arm is in contact with a cam on one end of the cam lever and a brake releasing spring is arranged between the roller wheel and the cam lever seat; the end of the cam lever is an input shaft of pedal forces and a returning spring is arranged between the supporting rod and the cam lever.

Description

Technical field: [0001] The invention relates to the improvement of the brake structure of the operating mechanism of the bridge crane. Background technique: [0002] At present, the electric block brakes ( image 3 shown) is a normally closed brake. Its working principle is that the operating system sends power to the pusher 41, the pusher 41 pushes the triangular arm 43, the triangular arm 43 expands the left and right brake arms 42 through the adjustment pull rod 46, and the left and right brake arms 42 compress the spring 45 through the spring rod 48 at the same time Make shoe block 47 leave brake wheel 44, running mechanism runs normally. Now adjust 2 tiles 47 loose brake gaps evenly with jackscrew 49, but very difficult to adjust, also often need to adjust. During braking, the operating system makes the pusher 41 power-off and loses the thrust, and the power of the spring 45 tightens the left and right brake arms 42 simultaneously, so that the tiles 47 enclose the br...

Claims

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Application Information

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IPC IPC(8): B66D5/08B66D5/24B66C17/00
Inventor 王福绵金吉云金万席
Owner SHENYANG CHINA RAILWAY ANPING BRAKE TECH DEV
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