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Forward-reverse-rotation transmission chain tensioning device and land leveler balance box

A technology of transmission chain and tensioning device, applied in the direction of transmission device, belt/chain/gear, mechanical equipment, etc., can solve the problems such as tooth skipping and de-chaining of chain transmission, which can prolong life, improve reliability, increase The effect of the large meshing wrap angle

Inactive Publication Date: 2017-12-22
GUANGXI LIUGONG MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a forward and reverse transmission chain tensioning device and a motor grader balance box with the transmission device in view of the existing chain transmission that is prone to tooth skipping and chain disengagement.

Method used

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  • Forward-reverse-rotation transmission chain tensioning device and land leveler balance box
  • Forward-reverse-rotation transmission chain tensioning device and land leveler balance box

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] like figure 1 As shown, the forward and reverse transmission chain tensioning device in this embodiment includes a driving sprocket 13, a driven sprocket 9, and a double-acting hydraulic cylinder 14; the driving sprocket 13 and the driven sprocket 9 rotate in the same direction through the chain 12 connect. An upper tensioning slide 10 is provided on the upper side of the chain 12 , and a lower tensioning slide 11 is provided on the lower side of the chain 12 . The two-way acting hydraulic oil cylinder 14 is a double-piston rod oil cylinder, and the two piston rods of the double-piston rod oil cylinder are fixedly connected with the upper tensioning slide 10 and the lower tensioning slide 11 respectively, and the piston movement direction of the double-way acting hydraulic oil cylinder is in line with the chain 12 top or The lower edge of the chain is vertical. When the piston of the double-acting hydraulic oil cylinder moves downward, the upper piston rod of the doub...

Embodiment 2

[0028] The chain drive in the balance box of the grader is as figure 2 As shown, its driving sprocket 13 is a double-row chain sprocket, and a driven sprocket 9 is respectively arranged on the front side and the rear side of the driving sprocket 13, and each driven sprocket 9 passes through a chain 12 and The drive sprocket 13 is connected to rotate in the same direction. The upper side of the front side chain is provided with an upper tensioning slide seat, and the lower side is provided with a lower tensioning slide seat. The rod and the lower piston rod are correspondingly connected.

[0029] Similarly, an upper tensioning slide is provided above the upper side of the rear side chain, and a lower tensioning slide is provided under the lower side. The upper piston rod and the lower piston rod are correspondingly connected.

[0030] The upper chamber of the front hydraulic cylinder communicates with the lower chamber of the rear hydraulic cylinder through pipelines, the l...

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Abstract

The invention relates to chain transmission and provides a forward-reverse-rotation transmission chain tensioning device in order to solve the problem that existing chain transmission is prone to generating tooth jumping and chain falling. The forward-reverse-rotation transmission chain tensioning device comprises a driving sprocket and driven sprockets which are rotatably connected through chains in the same direction and is characterized in that the forward-reverse-rotation transmission chain tensioning device further comprises upper tensioning sliding seats, lower tensioning sliding seats and two-way acting hydraulic oil cylinders; the two-way acting hydraulic oil cylinders push the upper tensioning sliding seats and the lower tensioning sliding seats to move in the perpendicular direction of the upper edges of the perpendicular chains, so that the upper tensioning sliding seats downwards compress the upper edges of the chains or the lower tensioning sliding seats upwards compress the lower edges of the chains; and the two-way acting hydraulic oil cylinders are connected with a chain tensioning control system. Engaged wrap angles of the chains and the driving sprocket are increased, the contact areas of the sprockets abraded after the long-term use and the chains are increased, when the chains are in forward-rotation transmission or reverse-rotation transmission, the phenomena such as shaking, skidding, floating, tooth jumping and chain falling of the transmission chains are overcome, the reliability of chain transmission is greatly improved, and the life of the chains is prolonged.

Description

technical field [0001] The invention relates to a chain transmission, more specifically, to a chain tensioning device for forward and reverse transmission and a balance box for a grader. Background technique [0002] The chain transmission mechanism has a wide range of applications, and is used in large-scale equipment such as construction machinery, agricultural machinery, forestry machinery, papermaking machinery, and petroleum machinery. Chain transmission is a kind of meshing transmission with intermediate flexible parts. It has some characteristics of both gear transmission and belt transmission: the sprocket teeth are better stressed and have a large load-bearing capacity; they have certain buffering and vibration damping properties; The distance can be large and the structure is light, and it can work under harsh environmental conditions. [0003] The grader is an earthwork engineering machine mainly used to complete the leveling and shaping of large areas of soil. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H7/08
CPCF16H7/08F16H2007/0814F16H2007/0891
Inventor 唐国义黄健勇
Owner GUANGXI LIUGONG MASCH CO LTD
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