HXN5B locomotive fuel injector testbed clamp

Abstract

The present invention relates to an HXN5B locomotive fuel injector testbed clamp. The HXN5B locomotive fuel injector testbed clamp comprises a testbed, a compound hydraulic cylinder, a first movable clamp block, a second movable clamp block, guide posts and a fixed pressing block. The compound hydraulic cylinder is installed on the panel of the testbed, a piston rod of the compound hydraulic cylinder comprises an outer piston rod and an inner piston rod, one ends of the guide posts are fixed on the panel, the fixed pressing block is fixed at the other ends of the guide posts, the first movableclamp block and the second clamp block are arranged between the two guide posts, the inner piton rod is internally provided with an oil supply hole channel, a high-pressure fuel pipeline is accessedinto the oil supply hole channel of the inner piston rod, high-pressure fuel is extended out of a high-pressure interface of a compressing seal fuel injector and then enters the fuel injector throughthe inner piston rod; and the outer piston rod is extended through the first movable clamp block, the second movable clamp block, the guide posts, the fixed pressing block and the compressing seal fuel injector so as to achieve rapid clamping of the HXN5B locomotive fuel injector. The HXN5B locomotive fuel injector testbed clamp achieve fast clamping of the fuel injector, saves time and labor, isconvenient and rapid in operation and safe and reliable.

Description

technical field [0001] The invention relates to the technical field of fuel injectors for internal combustion engines, in particular to a fixture for an HXN5B locomotive fuel injector test bench. Background technique [0002] At present, the fuel injector fixtures used in the HXN5B locomotive fuel injector test bench are all threaded. The implementation method is to screw the threaded interface of the high-pressure fuel supply pipe on the HXN5B locomotive fuel injector into the high-pressure fuel pipe joint, and the high-pressure fuel pipe joint passes through the high-pressure fuel pipe. Connect with the high-pressure fuel supply device. After the connection is completed, place the fuel injector of the HXN5B locomotive on the fixed bracket on the smoke collection device of the fuel injector, and start the test. [0003] In the prior art, it is necessary to use a wrench to disassemble the pipe joint for each test, and the cooperation of tools such as vise is required to comp...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, it is necessary to use a wrench to disassemble the pipe joint for each test, and the cooperation of tools such as vise is required to complete the disassembly and assembly of the pipe joint. Tighten the pipe joint with a certain torque. If the torque is too small, it will cause leakage of the test pipeline. If the torque is too large, it will cause thread damage, which will affect the service life of the injector and bring great inconvenience to the operator.

Images