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Front telescopic sleeve hydraulic cylinder for novel self-dumping trunk

A dump truck and telescopic technology, which is applied in the field of hydraulic cylinders, can solve the problems of high manufacturing cost, long maintenance man-hours, and maintenance difficulties, and achieve the effects of low manufacturing cost, short maintenance man-hours, and avoiding shaking or noise

Active Publication Date: 2017-01-25
湖北万邦液压装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the manufacturing cost of opening the annular groove and fitting the annular rubber ring on the support ring 2 is high
In addition, the welded part 3 of the outer cover does reciprocating motion for a long time, and it is difficult to maintain after the rubber ring is worn out. Replace the rubber ring
Long maintenance hours and high costs

Method used

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  • Front telescopic sleeve hydraulic cylinder for novel self-dumping trunk
  • Front telescopic sleeve hydraulic cylinder for novel self-dumping trunk
  • Front telescopic sleeve hydraulic cylinder for novel self-dumping trunk

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see Figure 6 and Figure 7 As shown, Embodiment 1 of the present invention provides a new front telescopic sleeve hydraulic cylinder for dump trucks, including a cylinder assembly 1 and an outer cover welding part 3, the front end of the outer cover welding part 3 has an opening, and the outer cover is welded The rear end of the part 3 is provided with an end cover 5, and the outer wall of the outer cover welding part 3 is provided with an upper hinge shaft 4 near the front end; the cylinder assembly 1 is inserted into the outer cover welding part 3 through the opening, and the cylinder assembly The end of 1 passes through the end cover 5 and is locked by the large nut 6 outside the end cover 5; the outer wall of the cylinder assembly 1 is provided with a support ring 2, and the support ring 2 is equally divided into at least three support rings. Nail 7. The support nail 7 is slightly higher than the support ring, and when the oil cylinder shakes, the outer cover wel...

Embodiment 2

[0032] see Figure 6 and Figure 8 As shown, the structure of the second embodiment of the present invention is basically the same as that of the first embodiment, and the difference is that the support nail 7 is a wave bead screw, and the wave bead screw includes a screw body 74, and the middle part of the screw body 74 is provided with a groove 73, A spring 72 is installed in the groove 73 , and a steel ball 71 is arranged on the end of the spring 72 close to the port of the groove 73 . By setting the ball screw as a structure of spring 72 and steel ball 71, the ball screw can automatically expand and contract under the pressure of the cylinder assembly 1, avoiding the shaking or noise of the cylinder assembly 1 due to the gap . In addition, since the friction relationship between the ball bead screw and the cylinder assembly 1 is rolling friction, compared with the existing sliding friction, it effectively reduces the friction with the cylinder assembly, reducing the The...

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Abstract

A front telescopic sleeve hydraulic cylinder for novel self-dumping trunk relates to the technical field of hydraulic cylinder. The front telescopic sleeve hydraulic cylinder for novel self-dumping trunk comprises a cylinder assembly and housing welded parts. The front end of the housing welded parts is provided an opening, and the rear end of the housing welded parts is provided with an end cap, and the lateral wall near the front end position of the housing welded parts is provided with an upper hinge axis. The cylinder assembly is inserted into the housing welded parts through the opening, and the end portion of the cylinder assembly is locked by a large nut outside the end cap after passing through the end cap. The lateral wall of the cylinder assembly is provided with a supporting ring which is evenly provided with at least three supporting nails. The front telescopic sleeve hydraulic cylinder for novel self-dumping trunk has the advantages of low manufacturing cost and short maintenance time.

Description

technical field [0001] The invention relates to the technical field of hydraulic cylinders, in particular to a novel front telescopic sleeve hydraulic cylinder of a dump truck. Background technique [0002] At present, most of the lifting methods of dump trucks use front telescopic sleeve hydraulic cylinders, see Figure 1-4 As shown, the front telescopic sleeve hydraulic cylinder includes a cylinder assembly 1 and an outer cover welding part 3, wherein the front end of the outer cover welding part 3 has an opening, and the rear end of the outer cover welding part 3 is provided with an end cover 5 , and the outer side wall of the outer cover welding part 3 is provided with an upper hinge shaft 4 near the front end; the cylinder assembly 1 is inserted into the outer cover welding part 3 through the opening, and the end of the cylinder assembly 1 passes through the end The cover 5 is locked behind by a large nut 6 located outside the end cover 5; the outer wall of the cylinder...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14F15B15/20
CPCF15B15/1423F15B15/1428
Inventor 张建亮曹纯儒陈志斌雷献华钟琦
Owner 湖北万邦液压装备有限公司
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