Electronic control fuel injection pump

Abstract

The utility model discloses an electronic control fuel injection pump which comprises an installation mechanism and an overhaul mechanism, the installation mechanism comprises a pump core, a connecting piece connected to one end of the pump core in a sleeved mode, a plurality of expansion screws connected with the connecting piece in a screwed mode, and the overhaul mechanism. The maintenance mechanism comprises two shells movably connected to the two sides of the pump core in a sleeving mode, two threaded rods connected between the connecting piece and the shells and nuts connected with the threaded rods in a screwed mode, and the two shells are symmetrically arranged and attached to each other. According to the utility model, the pump core protected by the two shells is connected with a ship body through the connecting piece and the expansion screw, and when the pump core is damaged, an operator unscrews the screw cap, takes down the gasket and takes down the locking ring, so that the shells can be detached from the threaded rod, the pump core is exposed in an external space, and the maintenance operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of electronically controlled fuel injection pumps, in particular to an electronically controlled fuel injection pump. Background Art

[0002] The fuel injection pump is a crucial component of an automotive diesel engine. The fuel injection pump assembly typically consists of the fuel injection pump, the speed governor, and other components assembled together. The speed governor ensures low-speed operation of the diesel engine, limits the maximum speed, and maintains a consistent relationship between injection volume and speed. The fuel injection pump is the most crucial component of a diesel engine, considered the "heart" of the engine. Failure with the pump can cause the entire engine to malfunction.

[0003] Application number CN202321160359.6 discloses a marine fuel injection pump, which belongs to the technical field of marine fuel injection pumps and includes structures such as a base plate. Through the cooperation of the provided double-headed motor, threaded rod, threaded barrel, plug-in block and socket, the operation of the double-headed motor can drive the threaded rod to rotate inside the threaded barrel, and since the sliding rod fixes the threaded barrel, the threaded barrel will not rotate, and can also slide on the threaded rod, gradually disengaging from the socket, releasing the fixation of the plug-in block, making it convenient for staff to disassemble the fuel injection pump body, and improving the maintenance efficiency of staff. When this application is used specifically, although the fuel injection pump can be flexibly removed, it is not of much help when repairing the inside of the pump body. On the contrary, after the repair, the pump housing needs to be reassembled and the fuel injection pump body needs to be installed, which causes inconvenience to use. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the technical solution adopted in this utility model is:

[0006] An electronically controlled fuel injection pump includes an installation mechanism and an inspection mechanism. The installation mechanism includes a pump core, a connecting piece sleeved on one end of the pump core, and a plurality of expansion screws screwed to the connecting piece. The inspection mechanism includes two shells movably sleeved on both sides of the pump core, two threaded rods connected between the connecting piece and the shells, and nuts screwed to the threaded rods. The two shells are symmetrically arranged and fit together.

[0007] By adopting the above technical solution, the pump core protected by two shells is connected to the hull through connectors and expansion screws. Then, when the pump core is damaged, the operator loosens the nut, removes the gasket, and then removes the locking ring. The shell can be removed from the threaded rod, exposing the pump core to the external space, thereby facilitating maintenance work.

[0008] In a preferred example, the present invention can be further configured as follows: a plurality of expansion screws are arranged in groups of two, and are arranged in two groups, and the two groups of expansion screws are vertically symmetrical about the pump core.

[0009] In a preferred example, the present invention can be further configured as follows: glands are installed on the top and bottom of the pump core, and the glands are attached to the outside of the shell.

[0010] In a preferred example, the present invention can be further configured as follows: a locking ring is connected between the two shells, and a plurality of protrusions are integrally formed on the outer edge of the locking ring.

[0011] In a preferred example, the present invention can be further configured as follows: a gasket is movably sleeved on the outer side of the threaded rod, and the gasket is fitted on the rear side of the nut.

[0012] In a preferred example, the present invention can be further configured as follows: two clips are fixedly connected to one side of the pump core, and the two clips are respectively attached to the front and rear sides of the connecting piece.

[0013] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0014] 1. In the present invention, the pump core protected by two shells is connected to the hull through connectors and expansion screws. Then, when the pump core is damaged, the operator loosens the nut, removes the gasket, and then removes the locking ring. The shell can be removed from the threaded rod, exposing the pump core to the external space, thereby facilitating maintenance operations.

[0015] 2. In the present invention, when the two shells are closed, the two glands limit the ends of the two shells, and then the locking ring presses the front ends of the two glands, so that the connection between the two glands is more firm, ensuring that the pump core can be safely protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the installation mechanism of the utility model;

[0018] Figure 3 It is a schematic diagram of the maintenance mechanism of the utility model.

[0019] Reference numerals:

[0020] 100, mounting mechanism; 110, pump core; 120, connector; 130, expansion screw;

[0021] 200, maintenance mechanism; 210, housing; 220, threaded rod; 230, nut;

[0022] 300, gland;

[0023] 400, locking ring;

[0024] 500, gasket;

[0025] 600. Card strip. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0027] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0028] An electronically controlled fuel injection pump provided by some embodiments of the present invention will be described below with reference to the accompanying drawings. Example 1

[0029] Combine Figure 1-3 As shown, the present invention provides an electronically controlled fuel injection pump, comprising an installation mechanism 100 and an inspection mechanism 200. The installation mechanism 100 comprises a pump core 110, a connector 120 sleeved on one end of the pump core 110, and a plurality of expansion screws 130 screwed to the connector 120.

[0030] The maintenance mechanism 200 includes two shells 210 movably connected to both sides of the pump core 110, two threaded rods 220 connected between the connecting member 120 and the shells 210, and nuts 230 screwed to the threaded rods 220. The two shells 210 are symmetrically arranged and fit together.

[0031] Furthermore, the plurality of expansion screws 130 are arranged in groups of two, and are arranged in two groups. The two groups of expansion screws 130 are vertically symmetrical about the pump core 110. The layout design of the expansion screws 130 can firmly connect the connector 120 to the external hull.

[0032] Furthermore, a gasket 500 is movably sleeved on the outer side of the threaded rod 220 , and the gasket 500 is attached to the rear side of the nut 230 . The provision of the gasket 500 can reduce the probability of the nut 230 loosening.

[0033] Furthermore, two clamping strips 600 are fixedly connected to one side of the pump core 110 , and the two clamping strips 600 are respectively attached to the front and rear sides of the connector 120 . The provision of the clamping strips 600 can improve the connection firmness between the pump core 110 and the connector 120 . Example 2

[0034] Combine Figure 1As shown, based on the first embodiment, pressure covers 300 are installed on the top and bottom of the pump core 110, and the pressure covers 300 are attached to the outside of the shell 210. The pressure covers 300 can be set to press the ends of the shell 210, thereby improving the sealing and stability of the closure of the two shells 210 to a certain extent. Example 3

[0035] Combine Figure 1 As shown, in the above embodiment, a locking ring 400 is connected between the two shells 210, and a plurality of protrusions are integrally formed on the outer edge of the locking ring 400. The provision of the locking ring 400 can firmly close the two shells 210.

[0036] The working principle and usage process of the present invention are as follows: When the device is put into actual use, the pump core 110 protected by the two shells 210 is connected to the hull through the connector 120 and the expansion screw 130. Then, when the pump core 110 is damaged, the operator loosens the nut 230, removes the gasket 500, and then removes the locking ring 400. In this way, the shell 210 can be removed from the threaded rod 220, exposing the pump core 110 to the external space, thereby facilitating maintenance operations.

[0037] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electronically controlled fuel injection pump, characterized in that: include: An installation mechanism (100), the installation mechanism (100) comprising a pump core (110), a connecting piece (120) sleeved on one end of the pump core (110), and a plurality of expansion screws (130) screwed to the connecting piece (120); An inspection mechanism (200) includes two housings (210) movably sleeved on both sides of the pump core (110), two threaded rods (220) connected between the connecting member (120) and the housings (210), and nuts (230) screwed to the threaded rods (220), wherein the two housings (210) are symmetrically arranged and fit together.

2. The electronically controlled fuel injection pump according to claim 1, characterized in that: The plurality of expansion screws (130) are arranged in groups of two, and are arranged in two groups. The two groups of expansion screws (130) are vertically symmetrical with respect to the pump core (110).

3. The electronically controlled fuel injection pump according to claim 1, characterized in that: The top and bottom of the pump core (110) are both installed with glands (300), and the glands (300) are attached to the outside of the housing (210).

4. The electronically controlled fuel injection pump according to claim 1, characterized in that: A locking ring (400) is connected between the two shells (210), and a plurality of protrusions are integrally formed on the outer edge of the locking ring (400).

5. The electronically controlled fuel injection pump according to claim 1, characterized in that: A gasket (500) is movably sleeved on the outside of the threaded rod (220), and the gasket (500) is fitted to the rear side of the nut (230).

6. The electronically controlled fuel injection pump according to claim 1, characterized in that: Two clamping strips (600) are fixedly connected to one side of the pump core (110), and the two clamping strips (600) are respectively attached to the front and rear sides of the connecting piece (120).

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