Offset connection structure between actuator and fuel injection pump

Abstract

The invention discloses an offset connection structure between an actuator and a fuel injection pump, which comprises an intermediate body (2), a screw (4), a tray (5), a connection plate (6), a return spring (7), a nut (8), Spring washer (9), flat washer (10), lever (11) on the actuator (1), push-pull rod (12), gear rod (13) on the fuel injection pump (3), one end of the return spring (7) It is installed on the gear rod hole of the fuel injection pump (3), and the other end is pressed on the connection plate (6). The connection plate (6) and the gear rod (13) are connected by two screws (4), and the tray (5) is connected to the reset The spring (7) is positioned by the outer edge of the tray (5), the connection plate (6) and the return spring (7) are positioned by the inner protrusion of the connection plate (6), the head of the push-pull rod (12) is an external thread, and the root of the thread is provided with a Step axis. The invention overcomes the disadvantages that the traditional connection method is easy to get stuck, the actuator and the gear rod of the fuel injection pump are not synchronized during the system adjustment process, which greatly reduces the system adjustment accuracy, and the assembly process is complicated.

Description

technical field [0001] The invention belongs to the technical field of diesel engine electronic control, and relates to an offset connection structure between an 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. Although a new type of connection structure between the actuator and the fuel injection pump (centered connection) overcomes the shortcomings of the traditional connection, it takes up a...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the deficiencies of the prior art, and propose a brand-new offset connection structure between the actuator and the fuel injection pump, which is used to solve the problem that the gear rod of the actuator and the fuel injection pump are not synchronized during the system adjustment process, and there are A small amount of hysteresis greatly reduces the adjustment accuracy of the system; the assembly process is complicated and it is easy to get stuck

Images