阅读说明：本技术 一种滑油泵的试验装置 (Testing device of lubricating oil pump ) 是由 吴耀华 丁龙 王剑 徐飞然 易周航 于 2021-09-01 设计创作，主要内容包括：一种滑油泵的试验装置,包括适配器安装座,所述适配器安装座的一端与驱动电机连接,所述适配器安装座的另一端安装有适配器,适配器的一端安装有被试滑油泵；所述适配器安装座包括固定连接在驱动电机上的电机法兰,电机法兰上固定连接有套装在驱动电机的电机轴上的连接管,连接管上固定连接有适配器法兰,适配器法兰与适配器连接；所述电机轴上连接有联轴器,联轴器的一端安装有测速齿盘,测速齿盘的一侧设有安装在连接管上的霍尔转速传感器,所述联轴器的另一端经转接轴与被试滑油泵的泵轴连接。本发明具有结构稳定,拆装方便,适应性强的特点,同时还具备测速功能,解决了不同接口滑油泵试验时试验工装反复拆装与重复加工的问题。(A testing device for a lubricating oil pump comprises an adapter mounting base, wherein one end of the adapter mounting base is connected with a driving motor, an adapter is mounted at the other end of the adapter mounting base, and a tested lubricating oil pump is mounted at one end of the adapter; the adapter mounting seat comprises a motor flange fixedly connected to the driving motor, a connecting pipe sleeved on a motor shaft of the driving motor is fixedly connected to the motor flange, an adapter flange is fixedly connected to the connecting pipe, and the adapter flange is connected with the adapter; the motor shaft is connected with a coupler, one end of the coupler is provided with a speed measuring fluted disc, one side of the speed measuring fluted disc is provided with a Hall rotating speed sensor arranged on the connecting pipe, and the other end of the coupler is connected with the pump shaft of the tested lubricating oil pump through a transfer shaft. The test fixture has the characteristics of stable structure, convenience in disassembly and assembly and strong adaptability, also has a speed measurement function, and solves the problems of repeated disassembly and assembly and repeated processing of the test fixture during the test of the lubricating oil pumps with different interfaces.)

1. The testing device of the lubricating oil pump comprises an adapter mounting base (1), and is characterized in that one end of the adapter mounting base (1) is connected with a driving motor (10), an adapter (8) is mounted at the other end of the adapter mounting base (1), and a tested lubricating oil pump (9) is mounted at one end of the adapter (8); the adapter mounting seat (1) comprises a motor flange (11) fixedly connected to the driving motor (10), a connecting pipe (12) sleeved on a motor shaft (3) of the driving motor (10) is fixedly connected to the motor flange (11), an adapter flange (13) is fixedly connected to the connecting pipe (12), and the adapter flange (13) is connected with the adapter (8); the motor shaft (3) is connected with a coupler (6), one end of the coupler (6) is provided with a speed measuring fluted disc (5), one side of the speed measuring fluted disc (5) is provided with a Hall rotating speed sensor (4) arranged on a connecting pipe (12), and the other end of the coupler (6) is connected with a pump shaft (14) of a tested lubricating oil pump (9) through a transfer shaft (7).

2. The testing device of the lubricating oil pump as claimed in claim 1, characterized in that the bottom of the connecting pipe (12) is further provided with an oil discharge hole (121).

3. The testing device of the lubricating oil pump according to claim 1, characterized in that an oil-proof cover (2) sleeved on the motor shaft (3) is arranged in an inner hole of the motor flange (11), an outer ring of the oil-proof cover (2) is in contact with the inner hole of the motor flange (11), and an inner ring of the oil-proof cover (2) is in contact with the motor shaft (3).

4. The testing device of the lubricating oil pump is characterized in that the Hall rotating speed sensor (4) is positioned right above the speed measuring fluted disc (5) and is arranged at the top of the connecting pipe (12); the speed measuring fluted disc (5) is arranged on the end face of one side, close to the driving motor (10), of the coupler (6).

5. Testing device for a lubricating oil pump according to claim 1, characterized in that the adapter (8) is connected to the adapter flange (13) of the adapter holder (1) by means of fasteners.

6. The testing device of the lubricating oil pump according to claim 1, characterized in that a positioning pin hole (85), a lubricating oil pump mounting threaded hole (84), an oil supply port (86), an oil return port (83), an oil supply pressure measuring port (87) and an oil return pressure measuring port (82) are arranged on one end face of the adapter (8) connected with the tested lubricating oil pump (9), and an oil return joint (81) and an oil supply joint (88) are respectively arranged on two sides of the adapter (8); and the tested lubricating oil pump (9) is provided with a positioning pin (15) matched with the positioning pin hole (85).

7. The test device of a lubricating oil pump according to claim 1, characterized in that the coupling (6) is elastically connected with the pump shaft (14) through an elastic coupling shaft (7); one end of the transfer shaft (7) is directly connected with a pump shaft (14) of the tested lubricating oil pump (9), and the other end of the transfer shaft is connected with the motor shaft (3) through a coupler (6); the transfer shaft (7) is connected with the pump shaft (14) through an external spline or an internal spline.

Technical Field

The invention relates to the technical field of lubricating oil pump detection, in particular to a testing device of a lubricating oil pump.

Background

The performance of the lubricating oil pump needs to be tested on special test equipment before the lubricating oil pump is installed or in a research and development stage, and a special test tool needs to be designed for each type of lubricating oil pump because the type, the type and the interface size of the tested lubricating oil pump are different, one end of the test tool is fixed on a driving motor of the test equipment, and the other end of the test tool is matched with the interface of the tested lubricating oil pump, so that the reliable installation of the tested lubricating oil pump is ensured.

The existing method is to design special lubricating oil pump test tools aiming at different tested lubricating oil pumps, the test tools are of an integrated structure, and a transmission shaft is designed to be in rigid connection, so that the whole set of test tools is complex in structure, strict in requirements on manufacturing and assembling precision, and has no speed measuring function; in the actual test process, aiming at the test requirements of different lubricating oil pumps, the lubricating oil pump test tool fixed on the test equipment needs to be replaced by manual integral disassembly and assembly each time, and a fastening screw needs to be disassembled and assembled repeatedly, so that the labor intensity is high, and the working efficiency is low; due to repeated disassembly and assembly and tests, once the lubricating oil pump test tool is worn or collided, the whole tool must be reworked, the test efficiency is influenced, and unnecessary economic loss is caused.

Disclosure of Invention

The invention aims to provide a test device of a lubricating oil pump, which is used for solving the problems in the background technology and has the characteristics of stable structure, convenience in disassembly and assembly and strong adaptability and also has a speed measuring function.

The technical scheme adopted for achieving the purpose is that the lubricating oil pump testing device comprises an adapter mounting base and is characterized in that one end of the adapter mounting base is connected with a driving motor, an adapter is mounted at the other end of the adapter mounting base, and a tested lubricating oil pump is mounted at one end of the adapter; the adapter mounting seat comprises a motor flange fixedly connected to the driving motor, a connecting pipe sleeved on a motor shaft of the driving motor is fixedly connected to the motor flange, an adapter flange is fixedly connected to the connecting pipe, and the adapter flange is connected with the adapter; the motor shaft is connected with a coupler, one end of the coupler is provided with a speed measuring fluted disc, one side of the speed measuring fluted disc is provided with a Hall rotating speed sensor arranged on the connecting pipe, and the other end of the coupler is connected with the pump shaft of the tested lubricating oil pump through a transfer shaft.

Further, the bottom of the connecting pipe is also provided with an oil discharge hole.

Furthermore, an oil-proof cover sleeved on the motor shaft is arranged in an inner hole of the motor flange, an outer ring of the oil-proof cover is in contact with the inner hole of the motor flange, and an inner ring of the oil-proof cover is in contact with the motor shaft.

Furthermore, the Hall rotating speed sensor is positioned right above the speed measuring fluted disc and is arranged at the top of the connecting pipe; the speed measuring fluted disc is arranged on the end face of one side, close to the driving motor, of the coupler.

Further, the adapter is connected with the adapter flange of the adapter mounting seat through a fastener.

Furthermore, a positioning pin hole, a lubricating oil pump mounting threaded hole, an oil supply port, an oil return port, an oil supply pressure measuring port and an oil return pressure measuring port are formed in the end face of one end, connected with the tested lubricating oil pump, of the adapter, and an oil return joint and an oil supply joint are respectively arranged on two sides of the adapter; and the tested lubricating oil pump is provided with a positioning pin matched with the positioning pin hole.

Furthermore, the coupling is elastically connected with the pump shaft through an elastic adapter shaft; one end of the transfer shaft is directly connected with a pump shaft of the tested lubricating oil pump, and the other end of the transfer shaft is connected with a motor shaft through a coupler; the transfer shaft is connected with the pump shaft through an external spline or an internal spline.

Advantageous effects

Compared with the prior art, the invention has the following advantages.

1. The invention adopts a split design, the adapter is connected with the adapter mounting seat by the connecting piece, the adapter is separately designed and manufactured according to the interface of the tested lubricating oil pump, and compared with the existing integrated test tool, the adapter is easier to process; when the lubricating oil pump test tool needs to be replaced due to the test of different lubricating oil pumps, the whole test tool does not need to be integrally disassembled, only the adapter part needs to be replaced, and the disassembling and assembling workload is reduced;

2. the invention has the advantage of easy maintenance, and when the adapter is worn in the using process, the whole lubricating oil pump test tool does not need to be manufactured again, and only the adapter needs to be manufactured again, so that the test cost is saved;

3. compared with the mode that the pump shaft of the lubricating oil pump is rigidly connected with the motor shaft at present, the elastic adapter shaft is adopted, the design of the elastic adapter shaft reduces the requirements on the manufacturing and mounting precision of a test tool, provides a safer and more reliable mounting mode for the tested lubricating oil pump, and reduces the risk of accidents such as shaft breakage and the like during the test of the tested lubricating oil pump;

4. compared with the existing test tool, the test tool has the advantages that the rotating speed test function of the lubricating oil pump is added, the speed measuring fluted disc is matched with the Hall rotating speed sensor, real-time rotating speed signals of the lubricating oil pump can be accurately output, and convenience is brought to measurement and verification of the rotating speed of the lubricating oil pump during the test.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of an adapter according to the present invention;

FIG. 3 is a schematic structural diagram of the speed measuring sprocket of the present invention.

Detailed Description

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

As shown in fig. 1-3, the testing device for the lubricating oil pump comprises an adapter mounting base 1, wherein one end of the adapter mounting base 1 is connected with a driving motor 10, an adapter 8 is mounted at the other end of the adapter mounting base 1, and a tested lubricating oil pump 9 is mounted at one end of the adapter 8; the adapter mounting base 1 comprises a motor flange 11 fixedly connected to a driving motor 10, the motor flange 11 is fixedly connected with a connecting pipe 12 sleeved on a motor shaft 3 of the driving motor 10, the connecting pipe 12 is fixedly connected with an adapter flange 13, and the adapter flange 13 is connected with an adapter 8; the motor shaft 3 is connected with a coupler 6, one end of the coupler 6 is provided with a speed measuring fluted disc 5, one side of the speed measuring fluted disc 5 is provided with a Hall rotating speed sensor 4 arranged on a connecting pipe 12, and the other end of the coupler 6 is connected with a pump shaft 14 of a tested lubricating oil pump 9 through a transfer shaft 7.

The bottom of the connecting pipe 12 is also provided with an oil discharge hole 121.

An oil-proof cover 2 sleeved on the motor shaft 3 is arranged in an inner hole of the motor flange 11, an outer ring of the oil-proof cover 2 is in contact with the inner hole of the motor flange 11, and an inner ring of the oil-proof cover 2 is in contact with the motor shaft 3.

The Hall rotating speed sensor 4 is positioned right above the speed measuring fluted disc 5 and is arranged at the top of the connecting pipe 12; the speed measuring fluted disc 5 is arranged on the end face of the coupler 6 close to one side of the driving motor 10.

The adapter 8 is connected to the adapter flange 13 of the adapter mount 1 by means of fasteners.

A positioning pin hole 85, a lubricating oil pump mounting threaded hole 84, an oil supply port 86, an oil return port 83, an oil supply pressure measuring port 87 and an oil return pressure measuring port 82 are arranged on the end face of one end, connected with the tested lubricating oil pump 9, of the adapter 8, and an oil return joint 81 and an oil supply joint 88 are respectively arranged on two sides of the adapter 8; and the tested lubricating oil pump 9 is provided with a positioning pin 15 matched with the positioning pin hole 85.

The coupling 6 is elastically connected with a pump shaft 14 through an elastic adapter shaft 7; one end of the transfer shaft 7 is directly connected with a pump shaft 14 of the tested lubricating oil pump 9, and the other end of the transfer shaft is connected with the motor shaft 3 through a coupler 6; the transfer shaft 7 is connected with the pump shaft 14 through an external spline or an internal spline.

In the invention, the adapter mounting base 1 comprises a motor flange 11, a connecting pipe 12 and an adapter flange 13, one end of the adapter mounting base 1 is connected with a driving motor 10, the other end of the adapter mounting base 1 is connected with an adapter 8, the tested lubricating oil pump 9 is mounted on the end surface of the adapter 8, and the motor shaft 3 is connected with a pump shaft 14 of the tested lubricating oil pump 9 through a transfer shaft 7 so as to drive the tested lubricating oil pump 9 to work; the Hall revolution speed sensor 4 is arranged at the top of the connecting pipe 12, and the speed measuring fluted disc 5 is arranged on the end face of the coupler 6 close to one side of the driving motor 10.

Adapter 8 and adapter mount pad 1 be split type structure, be connected by the fastener, can be according to the different adapter 8 of being tried the interface size change of lubricating oil pump 9, adapter mount pad 1 need not change.

One end of the adapter shaft 7 is directly connected with a pump shaft 14 of the tested lubricating oil pump 9, the other end of the adapter shaft is connected with the motor shaft 3 through the coupler 6, and the adapter shaft 7 is of an external spline or an internal spline structure according to the form of the respective pump shafts of different tested lubricating oil pumps 9.

A plurality of lubricating oil pump mounting threaded holes 84 matched with the mounting holes of the tested lubricating oil pump 9 and positioning pin holes 85 matched with the positioning pins 15 of the tested lubricating oil pump 9 are formed in the end face of one end of the adapter 8, and an axial oil supply port 86 and an axial oil return port 83 matched with the oil port of the tested lubricating oil pump 9, an oil supply pressure measuring port 87 and an oil return pressure measuring port 82 are formed in the end face; a radial oil supply channel and an oil return channel are designed in the adapter 8, and are communicated with an oil supply hose and an oil suction hose of test equipment during a test.

When the invention is implemented specifically, a mounting hole of the Hall rotating speed sensor 4 is arranged at the top of the connecting pipe 12, the motor flange 11 and the adapter flange 13 are welded at two ends of the connecting pipe 12 to form an oil collecting cavity, if the shaft end of the lubricating oil pump to be tested leaks during the test, the leaked lubricating oil enters the oil collecting cavity and is discharged from the oil discharge hole 121 at the bottom of the connecting pipe 12, and the oil-proof cover 2 is arranged at the inner hole of the motor flange 11 to prevent the lubricating oil in the oil collecting cavity from splashing and overflowing from the driving motor 10.

An adapter 8 is arranged between the adapter mounting seat 1 and the tested lubricating oil pump 9; the end faces of two ends of the adapter 8 are provided with concave spigot, the concave spigot at one end is matched with the tested lubricating oil pump 9, and the concave spigot at the other end is matched with the convex face of the adapter mounting seat 1.

Adopt the screw fastening between adapter 8 and the adapter mount pad 1, when different lubricating oil pump tests need to be accomplished, adapter mount pad 1 need not be dismantled, only need loosen the screw, the replacement installation with the adapter 8 of being tried lubricating oil pump 9 matching can.

The end face of the adapter 8 is provided with a positioning pin hole 85, and when the tested lubricating oil pump 9 is installed, the installation hole of the tested lubricating oil pump 9 is connected with the lubricating oil pump installation threaded hole 84 on the end face of the adapter 8 through a bolt, and meanwhile, the adapter is matched with the positioning pin hole 85 and the positioning pin 15 of the tested lubricating oil pump 9.

The end face of the adapter 8 on the installation side of the lubricating oil pump is provided with an axial oil supply port 86 and an axial oil return port 83 which are matched with an oil port of the tested lubricating oil pump 9 and are correspondingly communicated with an oil supply channel and an oil return channel in the radial direction in the adapter 8, when the tested lubricating oil pump 9 is installed, an oil suction port of the adapter is communicated with the axial oil supply port 86 of the adapter, and the oil return port of the adapter is communicated with the axial oil return port 83 of the adapter.

An oil supply connector 88 and an oil return connector 81 are respectively arranged at an oil supply passage port and an oil return passage port on the side wall of the adapter 8, and are respectively communicated with an oil supply hose and an oil suction hose of test equipment during a test, an oil supply pressure measuring port 87 and an oil return pressure measuring port 82 are further designed on the end surface of the adapter 8 and are respectively communicated with the oil supply passage and the oil return passage inside the adapter 8, and the pressure measuring port is used for collecting the pressure of the oil suction port and the oil return port of the tested lubricating oil pump 9 during the test.

The transfer shaft 7 is directly connected with a pump shaft 14 of the tested lubricating oil pump 9, the transfer shaft 7 is of an external spline or an internal spline structure according to the form of the pump shaft 14, and the matched transfer shaft 7 is installed according to different tested lubricating oil pumps 9 during testing.

One end of the switching shaft 7 is connected with a pump shaft 14 of the tested lubricating oil pump 9, the other end of the switching shaft is connected with a motor shaft 3 of the driving motor 10 through the coupler 6, and the switching shaft 7 is connected with the coupler 6 in a tensioning sleeve mode, so that the stability of high-speed operation of the tested lubricating oil pump 9 is guaranteed, and the switching shaft 7 is easy to disassemble and replace.

The speed measuring fluted disc 5 is arranged on the coupler 6 and close to one side end face of the motor shaft 3, threaded holes are processed on the end face of the coupler 6, the speed measuring fluted disc 5 and the coupler 6 are fastened by fastening screws, and the speed measuring fluted disc 5 and the coupler 6 rotate synchronously.

The top of connecting pipe 12 of adapter mount pad 1 adopts tight mode fixed mounting hall revolution speed sensor 4 of clamp, can adjust hall revolution speed sensor 4 for adapter mount pad 1 radial and axial position, ensures that it is close and aligns with speed measuring fluted disc 5, when speed measuring fluted disc 5 and motor shaft 3 synchronous revolution, produces magnetic field effect between hall revolution speed sensor 4 and the speed measuring fluted disc 5, outputs high, low level, and the signal is accomplished the measurement of being tried lubricating oil pump 9 rotational speed after gathering and conversion.