CN210371967U

CN210371967U - Variable speed pump mounting structure of electric loader gearbox

Info

Publication number: CN210371967U
Application number: CN201921192125.3U
Authority: CN
Inventors: 张坤; 王怀茂; 王立群
Original assignee: Tangshan Dingshi Automobile Manufacturing Co ltd
Current assignee: Tangshan Dingshi Automobile Manufacturing Co ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-04-21
Anticipated expiration: 2029-07-26

Abstract

The utility model relates to an electric loader, especially a variable speed pump mounting structure of electric loader gearbox. The variable speed pump comprises a variable speed pump, wherein an input shaft of the variable speed pump is of a hollow shaft structure, and an output shaft of a motor is in key connection with the input shaft of the variable speed pump; the motor is installed on the motor support, the motor support is transversely arranged at the bottom of the front end of the rear frame of the electric loader, two ends of the motor support are fixedly connected with the left inner side plate and the right inner side plate of the rear frame respectively, the variable speed pump is installed on the variable speed pump support, and the variable speed pump support is fixedly connected with the motor support. The utility model discloses reduced the oil absorption mouth of variable speed pump and the difference in height of gearbox oil pan oil-out, prevented that the variable speed pump from producing vacuum, improved the life of variable speed pump.

Description

Variable speed pump mounting structure of electric loader gearbox

Technical Field

The utility model relates to an electric loader, especially a variable speed pump mounting structure of electric loader gearbox.

Background

The loader is used as an engineering machine and has a wide application range, such as engineering construction, factories and mines, ports and the like. The traditional loader adopts a diesel engine as power, has high horsepower and is large in discharge. The electric loader solves the problem of emission of the traditional loader and is suitable for the requirements of national new energy. The variable speed pump of electronic loader gearbox is installed on the upper portion of gearbox box, and the variable speed pump provides power through the input shaft of gearbox, and the oil absorption mouth and the gearbox bottom oil pan intercommunication of variable speed pump have caused the oil absorption height of variable speed pump too big, and the oil absorption process can produce certain vacuum in pump entry department, and the performance and the life-span of vacuum to the pump can exert an influence.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a variable speed pump mounting structure of electronic loader gearbox improves variable speed pump's life.

The utility model provides a technical scheme that its technical problem adopted is:

a variable speed pump mounting structure of an electric loader gearbox comprises a variable speed pump, wherein an input shaft of the variable speed pump is of a hollow shaft structure, and an output shaft of a motor is in key connection with the input shaft of the variable speed pump; the motor is installed on the motor support, the motor support is transversely arranged at the bottom of the front end of the rear frame of the electric loader, two ends of the motor support are fixedly connected with the left inner side plate and the right inner side plate of the rear frame respectively, the variable speed pump is installed on the variable speed pump support, and the variable speed pump support is fixedly connected with the motor support.

Adopt above-mentioned technical scheme the utility model discloses, compare with prior art, beneficial effect is:

the height difference between the oil suction port of the variable speed pump and the oil outlet of the oil pan of the gearbox is reduced, the variable speed pump is prevented from generating vacuum degree, and the service life of the variable speed pump is prolonged.

Drawings

Fig. 1 is a top view of an embodiment of the present invention;

FIG. 2 is a left side view of FIG. 1;

fig. 3 is a schematic diagram of an oil circuit according to an embodiment of the present invention;

in the figure, a rear frame 1; a motor bracket 2; a motor 3; a variable speed pump bracket 4; a variable speed pump 5; a gearbox 6; an oil outlet pipe 6-1; an oil suction line 7; a filter 8; a pressure valve 9; a first branch 10; a second branch 11; an accumulator 12; and a speed change valve 13.

Detailed Description

The invention is further described with reference to the following figures and examples.

Referring to fig. 1 and 2, the variable speed pump mounting structure of the electric loader gearbox comprises a rear frame 1, a motor bracket 2, a motor 3, a variable speed pump bracket 4, a variable speed pump 5, a gearbox 6 and an oil suction pipe 7. The input shaft of the variable speed pump 5 is of a hollow shaft structure, and the input shaft of the motor 3 is in key connection with the input shaft of the variable speed pump 5. Motor 3 installs on motor support 2, and motor support 2 is a section of channel-section steel, and motor support 2 transversely arranges the bottom of 1 front end of frame behind the electric loader in, and motor support 2's both ends weld with the left inner panel and the right inner panel of back frame 1 respectively, and motor 3 is close to oil pan oil-out one side of gearbox 6. The motor 3 is connected with the motor bracket 2 through a bolt. The variable speed pump 5 is installed on the variable speed pump support 4, the variable speed pump support 4 is a steel plate, the variable speed pump 5 is connected with the variable speed pump support 4 through bolts, and the variable speed pump support 4 is welded with the motor support 2.

Referring to fig. 3, the oil path of the present embodiment is: the hydraulic transmission oil in the gearbox 6 is from an oil outlet pipe 6-1 of the gearbox 6 to an oil suction port of the variable speed pump 5 through an oil suction pipeline 7, from an oil outlet of the variable speed pump 5 to an oil inlet of the filter 8, and from the oil outlet of the filter 8, the hydraulic transmission oil is divided into two paths, a first branch 10 enters an oil inlet of the pressure valve 9, from the oil outlet of the pressure valve 9, enters a lubricating oil port of the energy accumulator 12, enters the gearbox 6, and the first branch 10 is used for lubricating a transmission part of the gearbox 6; the second branch 11 enters an accumulator oil inlet of the accumulator 12, and an operating valve oil outlet of the accumulator 12 enters an oil inlet of the variable speed valve 13 to provide shifting power.

The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.

Claims

1. A variable speed pump mounting structure of an electric loader gearbox comprises a variable speed pump, wherein an input shaft of the variable speed pump is of a hollow shaft structure; the motor is installed on the motor support, the motor support is transversely arranged at the bottom of the front end of the rear frame of the electric loader, two ends of the motor support are fixedly connected with the left inner side plate and the right inner side plate of the rear frame respectively, the variable speed pump is installed on the variable speed pump support, and the variable speed pump support is fixedly connected with the motor support.