Connection structure for actuator and fuel injection pump of diesel engine

A connection structure and actuator technology, applied in the direction of fuel injection pump, machine/engine, mechanical equipment, etc., can solve the problems of complex assembly process, asynchronous actuator and fuel injection pump gear rod, and reduced system adjustment accuracy, to overcome stuck effect

Inactive Publication Date: 2009-07-15
CHINA NORTH IND GRP NO 70 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many types of connection between the electronically controlled actuator of the diesel engine and the fuel injection pump at present. Most of them are connected by pins, and some are connected by screws. The main disadvantages of the traditional connection method are as follows: easy to get stuck; The gear rods of the fuel injection pump are not synchronized, and there is a small amount of hysteresis, which greatly reduces the adjustment accuracy of the system; the assembly process is complicated, and the requirements for assembly and parts processing are high

Method used

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  • Connection structure for actuator and fuel injection pump of diesel engine
  • Connection structure for actuator and fuel injection pump of diesel engine
  • Connection structure for actuator and fuel injection pump of diesel engine

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Embodiment Construction

[0014] Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described further:

[0015] Such as figure 1 As shown, this structure includes an intermediate body 4, a spring plate 5, a block 6, a return spring 8, a ball nut 9 on the actuator 1, and a gear rod 7 on the fuel injection pump 3, etc., and one end of the return spring 8 is supported in the middle On the body 4, the other end is pressed on the spring disk 5. The inner hole of the spring disk 5 is a tapered hole with a flange at the end. The spring plate 5 and the rack bar 7 are connected by two blocks 6, the block 6 and the spring plate 5 are connected by a tapered surface, and the block 6 and the rack bar 7 are connected by a slot. The gear rod 7 cuts a rectangular ring groove on the circumference for the end of the cylinder, and the end face is a circular plane. Such as figure 2 As shown, the clamping block 6 is composed of 2 pieces, and the shape is a circular platfor...

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Abstract

The invention belongs to the technical field of electronic diesel control, relating to a connection structure of a diesel engine actuator and an oil injection pump. The structure comprises an intermediate body, a spring holder, fixture blocks, an offsetting spring, ball nuts on the actuator, and a rack bar on the oil injection pump; wherein one end of the offsetting spring is supported on the intermediate body, the other end is pressed on the spring holder; the spring holder and the rack bar are connected by two fixture blocks; the fixture blocks and the spring holder are in taper connection; and the fixture blocks and the rack bar are in neck connection. The invention has the advantages of high precision and convenient disassembly, and the connection structure is not easy to have clamping stagnation and is more reliable.

Description

technical field [0001] The invention belongs to the technical field of diesel engine electronic control, and relates to a connection structure between a diesel engine actuator and a fuel injection pump. Background technique [0002] There are many types of connection between the electronically controlled actuator of the diesel engine and the fuel injection pump at present. Most of them are connected by pins, and some are connected by screws. The main disadvantages of the traditional connection method are as follows: easy to get stuck; The gear rods of the fuel injection pump are not synchronized, and there is a small amount of backlash, which greatly reduces the adjustment accuracy of the system; the assembly process is complicated, and the requirements for assembly and parts processing are high. Contents of the invention [0003] The purpose of the present invention is to solve the deficiencies of the prior art, and propose a connection structure between the diesel engine...

Claims

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Application Information

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IPC IPC(8): F02M51/04F02M59/44
Inventor 郁国军王孝褚全红孟长江傅文林闫云艳
Owner CHINA NORTH IND GRP NO 70 RES INST
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