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Rotary speed reduction device for automobile crane

A technology of truck crane and reduction gear, which is applied to cranes, transmissions, gear transmissions, etc., can solve the problem that the brake pressure oil is easy to penetrate into the brake, the wear resistance of the brake friction plate is not good, and the sealing performance of the brake piston is not good. Good and other problems, to achieve the effect of improving braking reliability, wide practicability, avoiding extravasation and dust intrusion

Active Publication Date: 2011-01-26
XUZHOU SHENGBANG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the slewing reducer used on the active truck crane mainly has the following problems: (1) the sealing of the brake piston is not good, and the brake pressure oil is easy to seep into the brake, which affects the braking performance; (2) the internal The lubricating oil of each bearing seeps out, which affects the performance of the bearing; (3) The reduction ratio is small, and the degree of deceleration and torque increase is not enough; (4) The wear resistance of the brake friction plate is not good, and the service life of the brake is low; (5) The reducer The transmission efficiency is low, the transmission noise is large, and the running stability is not good

Method used

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Embodiment Construction

[0009] An embodiment of the invention will be further described below in conjunction with the accompanying drawings:

[0010] As shown in the accompanying drawings, the slewing deceleration device of the truck crane is mainly composed of a motor connection plate 1, a brake, a planetary gear reducer, an output gear 19 and its bearings and bearing housings. The motor connecting plate 1 is in the shape of a flange, with a through hole processed in its center and a notch for positioning the motor at the upper end; the entire motor connecting plate is fixed on the brake housing 34 by 8 screws evenly distributed, and on the motor connecting plate 1 An O-ring 8 is housed between the brake housing 34. The brake is composed of a brake housing 34, a brake piston 2, a brake spring 3, 6 dynamic friction plates 32 and 7 static friction plates 33, combined seals 6, 7, gaskets 9, retaining rings 10 and the like. The housing 34 is fixedly connected with the small internal gear 31 and the lar...

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PUM

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Abstract

The invention discloses a rotary speed reduction device for an automobile crane, which mainly comprises a motor flange, a brake, a planetary gear reducer, an output gear, a bearing and a bearing pedestal, wherein the brake comprises a shell, a brake piston, a brake spring, kinematic / static friction plates, a combined seal, a gasket and a retainer ring; the planetary gear reducer is transmitted by a three-stage planetary gear train composed of a spline shaft sleeve, big, medium and small sun gears, big, medium and small planetary carriers, big, medium and small planetary gears, big and small internal gears and the like; and the output gear is supported in the bearing pedestal through the bearing, the upper part of the output gear is provided with a spline shaft and is connected with an internal splined hole of the big planetary carrier, and the lower part of the output gear is provided with an external gear. The rotary speed reduction device adopts three-stage planetary gear speed reduction to effectively improve a reduction ratio and the speed reduction and torque increase capability, improve the brake efficiency and the brake reliability, fulfill the aim of high efficiency and low-noise transmission, and effectively solve the problems of the conventional rotary speed reduction device used in the automobile crane. The rotary speed reduction device has the advantages of simple structure, large reduction ratio, high speed reduction and torque increase capability, and high sealing property.

Description

technical field [0001] The invention relates to a slewing deceleration device for a truck crane, in particular to a slewing mechanism suitable for various truck cranes. Background technique [0002] The slewing deceleration device of the truck crane is used to connect the hydraulic drive motor with the slewing ring gear. It integrates the functions of braking, slewing power transmission, deceleration and torque increase, and is a key component to ensure the reliable and safe realization of the slewing function of the truck crane. To a large extent, it determines the performance of its rotary operation. At present, the slewing reducer used on the active truck crane mainly has the following problems: (1) the sealing of the brake piston is not good, and the brake pressure oil is easy to seep into the brake, which affects the braking performance; (2) the internal The lubricating oil of each bearing seeps out, which affects the performance of the bearing; (3) The reduction ratio...

Claims

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Application Information

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IPC IPC(8): B66C23/84B66C23/36F16H1/32F16D55/40
Inventor 姜伟焦生炉连旭日候园园
Owner XUZHOU SHENGBANG MACHINERY
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