CN217654700U

CN217654700U - Gearbox airtightness flow method testing device

Info

Publication number: CN217654700U
Application number: CN202221464299.2U
Authority: CN
Inventors: 朱建强; 祖连合; 刘军; 王军华
Original assignee: Tangshan Zhisheng Metal Processing Co ltd
Current assignee: Tangshan Zhisheng Metal Processing Co ltd
Priority date: 2022-06-14
Filing date: 2022-06-14
Publication date: 2022-10-25
Anticipated expiration: 2032-06-14

Abstract

The utility model relates to a gearbox test technical field especially relates to a gearbox gas tightness flow method testing arrangement. Including controller and main trachea, be provided with first valve on the main trachea, the main trachea is connected with test tube, test tube's one end is connected with standard sample spare, test tube's the other end is used for connecting the gearbox that awaits measuring, the last mass flow meter that is provided with of test tube, mass flow meter electric connection to controller, still be provided with the pressure measurement pipeline on the test tube, the pressure measurement pipeline connection has the manometer. The utility model discloses can test the gas tightness of gearbox.

Description

Gearbox airtightness flow method testing device

Technical Field

The utility model relates to a gearbox test technical field especially relates to a gearbox gas tightness flow method testing arrangement.

Background

Gearboxes are typically mounted on vehicles to change the speed or direction of travel. The air tightness of the gearbox is one of important factors influencing the quality of the gearbox, and if the air tightness is poor, the problems of oil leakage and the like can be caused. After the gearbox is assembled, an air tightness test is carried out to judge whether the air tightness is qualified or not.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the technique that exists is not enough to the aforesaid, provides a gearbox gas tightness flow method testing arrangement, can test the gas tightness of gearbox.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a gearbox gas tightness flow method testing arrangement, includes controller and main trachea, be provided with first valve on the main trachea, main trachea is connected with the test tube way, the one end of test tube way is connected with standard sample spare, the gearbox that awaits measuring is used for connecting to the other end of test tube way, the last mass flowmeter that is provided with of test tube way, mass flowmeter electric connection is to the controller, still be provided with the pressure measurement pipeline on the test tube way, the pressure measurement pipeline connection has the manometer.

Further optimize this technical scheme, still be provided with the pressure release pipeline on the test pipeline, the pressure release pipeline is connected with the second valve.

Further optimize this technical scheme, this device is still including the test fixture that is used for will await measuring gearbox and test tube coupling, the test fixture includes the frame, one side of frame is connected with test tube's one end, the inboard position that corresponds with test tube of frame is provided with the boss, be provided with the through-hole with test tube intercommunication on the boss, the tip of boss is provided with sealed the pad, the opposite side threaded connection of frame has fastener.

Further optimize this technical scheme, fastener includes the screw rod, the one end of screw rod is provided with the handle, be provided with the screw hole on the frame, screw rod and screw hole threaded connection.

Compared with the prior art, the utility model has the advantages of it is following: 1. the mass flowmeter is arranged on a test pipeline between the standard sample piece and the gearbox to be tested, and the numerical value of the mass flowmeter provides a basis for judging whether the air tightness of the gearbox is qualified or not; 2. the test fixture is convenient to operate, and the gearbox to be tested can be conveniently connected to the test pipeline.

Drawings

FIG. 1 is a schematic block diagram of a gearbox airtightness flow method testing device.

Fig. 2 is a schematic structural diagram of the test fixture.

In the figure: 1. a main air pipe; 2. a first valve; 3. a standard sample piece; 4. testing the pipeline; 5. a mass flow meter; 6. a pressure gauge; 7. a pressure measuring pipeline; 8. a gearbox to be tested; 9. a pressure relief duct; 10. a second valve; 11. testing the tool; 111. a frame; 112. a boss; 113. a gasket; 114. and a fastening device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in combination with the following embodiments. It should be understood that the description is intended for purposes of illustration only and is not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The specific implementation mode is as follows: referring to fig. 1-2, the test device for the gearbox airtightness by the flow method comprises a controller and a main air pipe 1, wherein the main air pipe 1 is used for connecting a compressed air supply device, and a first valve 2 is arranged on the main air pipe 1. The utility model discloses a test tube, including main trachea 1, test tube 4, standard sample piece 3 and the gearbox 8 specification that awaits measuring are the same and the leakproofness is intact, test tube 4's the other end is used for connecting the gearbox 8 that awaits measuring, be provided with mass flow meter 5 on test tube 4, mass flow meter 5 electric connection is to the controller, still be provided with pressure measurement pipeline 7 on test tube 4, pressure measurement pipeline 7 is connected with manometer 6.

Still be provided with pressure release pipeline 9 on the test pipeline 4, pressure release pipeline 9 is connected with second valve 10, and after the test is accomplished, can open second valve 10 and carry out the exhaust.

This device is still including the test fixture 11 that is used for will await measuring gearbox 8 and test pipeline 4 and is connected, test fixture 11 includes frame 111, one side of frame 111 is connected with test pipeline 4's one end, the inboard position that corresponds with test pipeline 4 of frame 111 is provided with boss 112, be provided with the through-hole that communicates with test pipeline 4 on the boss 112, the frame that preferred through-hole pierces through frame 111 at its place and test pipeline 4's one end intercommunication, the tip of boss 112 is provided with sealed pad 113, and sealed pad 113 is ring shape and is located around the through-hole, the opposite side threaded connection of frame 111 has fastener 114. The fastening device 114 includes a screw rod, one end of the screw rod is provided with a handle, and the frame 111 is provided with a threaded hole, and the screw rod is in threaded connection with the threaded hole.

The testing process comprises the following steps: the gearbox 8 to be tested is placed into the frame 111, the oil filling port in the gearbox 8 to be tested is aligned to the through hole in the boss 112, the diameter of the through hole is smaller than that of the oil filling port, the end face of the oil filling port is in contact with the sealing gasket 113, and then the handle is rotated to enable the top end of the screw rod to be fixed on the gearbox 8 to be tested with a certain force to complete sealing connection. In actual operation, a wood board can be padded between the top end of the screw and the gearbox 8 to be tested, so that the gearbox 8 to be tested is prevented from being damaged. Then, the first valve 2 is opened, gas with certain pressure is filled into the gearbox 8 to be tested and the standard sample 3, then the first valve 2 is closed, and the gearbox 8 to be tested has certain leakage, the standard sample 3 is good in sealing performance, so that the gas in the standard sample 3 flows to the gearbox 8 to be tested through the mass flow meter 5, and whether the gas tightness of the gearbox 8 to be tested meets the standard or not can be judged through the numerical value of the mass flow meter 5. When the test is completed, the second valve 10 may be opened for venting. If the second valve 10 is not provided, the handle can be rotated to release the screw, and the pressure gas is exhausted from the boss 112, and then the gearbox 8 to be tested is dismounted to carry out the next gearbox test.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides a gearbox gas tightness flow method testing arrangement, includes controller and main trachea (1), its characterized in that: be provided with first valve (2) on main trachea (1), main trachea (1) is connected with test tube way (4), the one end of test tube way (4) is connected with standard sample spare (3), the other end of test tube way (4) is used for connecting gearbox (8) that await measuring, be provided with mass flow meter (5) on test tube way (4), mass flow meter (5) electric connection to controller, still be provided with pressure measurement pipeline (7) on test tube way (4), pressure measurement pipeline (7) are connected with manometer (6).

2. The gearbox airtightness flow method testing device according to claim 1, wherein: the test pipeline (4) is further provided with a pressure relief pipeline (9), and the pressure relief pipeline (9) is connected with a second valve (10).

3. The gearbox airtightness flow method testing device according to any one of claims 1 to 2, wherein: still including being used for the test fixture (11) that gearbox (8) and test tube way (4) that will await measuring are connected, test fixture (11) are including frame (111), one side of frame (111) is connected with the one end of test tube way (4), the inboard position that corresponds with test tube way (4) of frame (111) is provided with boss (112), be provided with the through-hole with test tube way (4) intercommunication on boss (112), the tip of boss (112) is provided with sealed pad (113), the opposite side threaded connection of frame (111) has fastener (114).

4. The gearbox airtightness flow method testing device according to claim 3, wherein: the fastening device (114) comprises a screw, one end of the screw is provided with a handle, the frame (111) is provided with a threaded hole, and the screw is in threaded connection with the threaded hole.