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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: 2013-04-24
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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Effect test

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 connected with the cam rod 16 having the cam 14; the cam rod 16 is arranged on the pole 20 on the base 2 through the shaft 15 , the top of the left brake arm 12 is provided with a roller 13, the roller 13 is in contact with the cam 14 at one end of the cam lever 16, and a brake release spring 11 is arranged between the roller 13 and the cam lever seat 10; the other end of the cam lever 16 is The input shaft 17 of pedal force, between the strut 20 and the cam lever 16 is a back-moving spring 18 .

[0011] In order to conveniently adjust the proper gap between the brake wheel 7 and the tile 4, the right brake arm...

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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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Patent Type & Authority Patents(China)
IPC IPC(8): B66D5/08B66D5/24B66C17/00
Inventor 国树东李茅张明鹤王冬梅李京云金万席任玉华
Owner SHENYANG CHINA RAILWAY ANPING BRAKE TECH DEV
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