Hydraulic round platform gear pump

A gear pump and round table technology, applied in the field of hydraulic gear pumps, can solve the problems of loose meshing between the driving gear and the driven gear, the working noise of the hydraulic gear pump becomes larger, and the power fails to meet the design requirements, so as to reduce the clearance, The effect of meeting power requirements and extending service life

Inactive Publication Date: 2009-11-04
叶立平 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existence of the gap not only increases the working noise of the hydraulic gear pump, but also mainly reduces the hydraulic displacement, the power cannot meet the original design requirement

Method used

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  • Hydraulic round platform gear pump
  • Hydraulic round platform gear pump
  • Hydraulic round platform gear pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Such as figure 1 as shown,

[0018] The gear 1 of the present invention and the return device 2 of the oil circuit are all arranged in the inner casing 3 with end covers at both ends, the driving gear 11 and the driven gear 12 are circular table gears with the same size, and the barrel of the casing The body 31 is consistent with the taper of the round platform gear, and the outer casing end cover 32 of the large round platform 13 ends of the round platform is provided with an end cover propulsion device 4, and the end cover 32 and the casing end cover 33 of the small round platform 14 ends of the round platform are all provided with There is a sliding rod 5, and the sliding rod end 51 is located in the long sliding groove 52 provided between the two end covers. In addition, a machine cover (not shown) is provided outside the two end covers.

[0019] another example figure 1 as shown,

[0020] Ejection cylinders 6 are provided between the two ends of the circular pl...

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PUM

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Abstract

The invention relates to a hydraulic round platform gear pump. A driving gear and a driven gear of the gear pump are round platform gears with the same size, a barrel body of a shell accords with the taper degree of the round platform gears, an end cover propulsion unit is arranged outside a shell end cover at one end of a large round platform, the end covers at two ends are provided with a sliding bar respectively, and the ends of the sliding bars are positioned in a sliding long groove formed between the two end covers. The hydraulic round platform gear pump adopts the round platform gears which are meshed with each other, and when the shell and the surfaces of the gears are abraded to generate gaps between the shell and the surfaces, the round platform gears are automatically propelled forward continuously under the action of the end cover propulsion unit, thus the gap degree of the shell barrel and the surfaces of the gears is effectively reduced and the driving gear and the driven gear also achieve a good meshing state so that the hydraulic pump keeps normal delivery capacity, satisfies the power requirement and prolongs the service life of the hydraulic pump.

Description

technical field [0001] The invention relates to a hydraulic gear pump, in particular to a hydraulic circular table gear pump. Background technique [0002] In the prior art, the two intermeshing driving gears and driven gears of the hydraulic gear pump are cylindrical gears of the same size. Both the cylindrical gear and the return device of the oil circuit are arranged in the casing with end covers at both ends. When the hydraulic gear pump works for a long time, the tooth surface of the cylindrical gear and the inner wall of the casing will inevitably be worn, and there will be a gap between the gear and the cylinder. The existence of the gap not only increases the working noise of the hydraulic gear pump, but also mainly reduces the hydraulic displacement, the power cannot meet the original design requirements, and causes the meshing of the driving gear and the driven gear to loosen. The pump will not be able to maintain normal work, only maintenance, or replacement of ...

Claims

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Application Information

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IPC IPC(8): F04C2/18
Inventor 叶立平孟召品
Owner 叶立平
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