Dry test equipment for oil pump

Abstract

The utility model discloses dry test equipment for an oil pump, which comprises a rack provided with a test fixture for fixing the oil pump; the high-low pressure testing assembly comprises an air inlet and is arranged on the testing clamp, the air inlet is connected with an air inlet pipe, and the air inlet pipe is provided with a valve; the vacuum degree testing assembly comprises an inlet assembly and an outlet assembly, and the outlet assembly is connected with an air outlet pipe; and the torque testing assembly comprises a connector and a rotation driving piece and is located on the upper side of the testing clamp, and the rotation driving piece drives the connector to rotate. The oil pump vacuum degree, pressure and torque detection device has the advantages that a gas detection mode is adopted, detection of the vacuum degree, pressure and torque of an oil pump is completed at a time, compared with oil detection, leakage risks are avoided, use is safer, and reduction of cleaning workload and improvement of economic benefits are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil pump detection technical field, specifically relates to a dry test test equipment of oil pump. BACKGROUND

[0002] Mechanical oil pump is the core component of engine lubricating system, is used for continuously conveying lubricating oil to crankshaft, camshaft, piston and bearing key components of engine. Oil pump plays a vital role in reducing friction, cooling components through heat dissipation and preventing metal from contacting metal, thereby prolonging the service life of engine.

[0003] Oil pump needs to detect its performance before leaving factory, and liquid detection method is generally adopted in prior art, for example, the invention patent with application number 202110798904.3 discloses an oil pump testing device, which is detected through connecting oil inlet pipe, oil tank and oil outlet channel, adopts liquid detection mode, and the cost is higher, and leakage, volatilization and other situations are prone to occur in the process of use, which causes hidden troubles to body and environmental safety. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a dry test test equipment of oil pump, which uses gas instead of liquid, and one-time pressure, vacuum degree and torque test is completed, which helps to improve production efficiency and greatly reduces cost.

[0005] Specifically, the utility model discloses a dry test test equipment of oil pump, which comprises:

[0006] A rack is provided with a test fixture for fixing the oil pump.

[0007] A high-low pressure test assembly comprises an air inlet arranged on the test fixture, and the air inlet is connected with an air inlet pipe.

[0008] A vacuum degree test assembly comprises an inlet assembly and an outlet assembly, and the outlet assembly is connected with an air outlet pipe.

[0009] A torque test assembly comprises a connecting head and a rotary drive, and the rotary drive drives the connecting head to rotate.

[0010] The above technical scheme has the beneficial effects that the gas detection mode is adopted, the vacuum degree, pressure and torque of the oil pump are detected at one time, there is no leakage risk compared with oil liquid detection, it is safer to use, and it helps to reduce cleaning workload and improve economic benefits.

[0011] Further, the test fixture comprises side plates, a bottom plate and a clamping assembly, the side plates are vertically fixed on the rack, a plurality of positioning pins are arranged on the side plates, and the clamping assembly is arranged around the side plates.

[0012] The beneficial effect of the above technical scheme is that the test fixture is used to fix the oil pump, and then automatic clamping and loosening are realized through the clamping assembly, and detection is convenient.

[0013] Further, the test fixture side is further provided with a connecting block, a female end for connecting with the joint of the oil pump is arranged in the connecting block, and the female end is provided with a connecting line.

[0014] The beneficial effect of the above technical scheme is that the connecting block and the connecting line are arranged to realize the connection of the oil pump, connect the power supply, transmit the detection data to the control system, and realize the transmission of the detection data.

[0015] Further, the inlet assembly comprises an inlet joint and an inlet driving member, the inlet driving member is connected with the inlet joint, and drives the inlet joint to reciprocate.

[0016] The beneficial effect of the above technical scheme is that the outlet joint is arranged to block the outlet of the oil pump for vacuum degree detection, and is connected with the inlet of the oil pump only when detection is needed, which is suitable for different detection conditions.

[0017] Further, the outlet assembly comprises an outlet joint and an outlet driving member, the outlet joint is connected with an air outlet pipe, and the outlet driving member is connected with the outlet joint and drives the outlet joint to reciprocate.

[0018] The beneficial effect of the above technical scheme is that the outlet joint is arranged to block the outlet of the oil pump for vacuum degree detection, and the air outlet pipe connected with the outlet joint is provided with a pressure sensor for numerical detection of the vacuum degree.

[0019] Further, the outlet driving member comprises a sliding table air cylinder, an installation plate is connected to the output end of the sliding table air cylinder, and the installation plate is connected with the outlet joint.

[0020] The beneficial effect of the above technical scheme is that the outlet joint is accurately connected with the oil pump, and detection is convenient.

[0021] Further, the rotating driving member comprises a motor, a gear set and a transmission shaft, the transmission shaft is connected with the output end of the motor through the gear set, and the transmission shaft and the connecting head are connected through a torque sensor.

[0022] The beneficial effect of the above technical scheme is that the transmission shaft is driven to rotate by the motor, and whether the torque of the product is qualified is detected in the rotating process.

[0023] Further, the torque test assembly further comprises a vertical moving assembly, which comprises a receiving plate and a vertical driving member, the rotating driving member is located on the receiving plate, and the vertical driving member drives the receiving plate to move up and down.

[0024] The beneficial effects of the above technical scheme are that the vertical movement assembly drives the receiving plate to move vertically, and when torque testing is needed, the connecting head is driven to connect with the output shaft on the oil pump to realize torque testing, which is simple in structure and convenient to detect.

[0025] Further, a pressure sensor is arranged in the air inlet pipe and the air outlet pipe.

[0026] The beneficial effects of the above technical scheme are that the pressure sensor detects the pressure value and the vacuum degree, and the detection result is fed back to the control system to complete the detection.

[0027] Further, a code scanner is arranged on the rack.

[0028] The beneficial effects of the above technical scheme are that the code scanner is arranged to scan the bar code on each oil pump, mark each pump, and check the detection result. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments or prior art description will be briefly introduced as follows.

[0030] Fig. 1 is the overall structure schematic diagram of the dry test testing equipment of the oil pump of the present application

[0031] Fig. 2 is the main view structure schematic diagram of the dry test testing equipment of the oil pump of the present application

[0032] Fig. 3 is the structure schematic diagram of the pressing assembly of the present application

[0033] The reference signs involved in the drawings are as follows:

[0034] Rack 1, test fixture 2, side plate 21, bottom plate 22, positioning pin 23, air inlet 3, inlet assembly 5, inlet connector 51, inlet driving member 52, outlet assembly 6, outlet connector 61, outlet driving member 62, mounting plate 63, air outlet pipe 64, connecting head 7, rotary driving member 71, receiving plate 72, pressure sensor 73, motor 74, transmission shaft 75, torque sensor 76, vertical driving member 77, connecting block 8, connecting line 81, code scanner 82, clamping assembly 9, main body plate 91, pressing rod 92, pressing head 93. DETAILED DESCRIPTION

[0035] The present application will be further described in detail below with reference to the drawings.

[0036] As shown in Figs. 1-3 The present application discloses a dry test testing equipment for an oil pump, which comprises:

[0037] The rack 1 is provided with a protection door, and the test fixture 2 is arranged on the rack 1 and used for fixing the oil pump.

[0038] The high-low pressure test assembly comprises an air inlet 3 arranged on the test fixture 2, wherein the air inlet 3 is connected with an air inlet pipe provided with a valve.

[0039] The vacuum degree test assembly comprises an inlet assembly 5 and an outlet assembly 6 connected with an air outlet pipe 64.

[0040] The torque test assembly comprises a connecting head 7 and a rotating driving part 71 arranged on the upper side of the test fixture 2, wherein the rotating driving part 71 drives the connecting head 7 to rotate.

[0041] The beneficial effects of the above technical scheme are that the detection of the vacuum degree, the pressure and the torque of the oil pump is completed at one time by using the gas detection mode, there is no leakage risk compared with the oil detection, the use is safer, and the cleaning workload is reduced and the economic benefits are improved.

[0042] In some embodiments, the test fixture 2 comprises a side plate 21, a bottom plate 22 and a clamping assembly 9, the side plate 21 is vertically locked and fixed on the rack 1, a plurality of positioning pins 23 are fixed on the side plate 21, the oil pump is provided with a base, the base is provided with a plurality of positioning holes, when fixed, the positioning pins 23 are inserted into the positioning holes, the number of the positioning pins 23 can be three to ensure stable fixation, the bottom plate 22 is fixed on the lower side of the side plate 21, and the clamping assembly 9 is arranged around the side plate 21; meanwhile, the side plate 21 is provided with the air inlet 3 connected with the high-low pressure test hole inlet of the oil pump, the air inlet pipe is located at the rear side of the air inlet 3, the pressure sensor is installed on the air inlet pipe, and the air inlet pipe is further connected with the gas source, so that the high-pressure or low-pressure gas can be introduced, the oil pump is further provided with a high-low pressure test outlet, and the outlet is not connected with the pipeline during the test and directly diffuses into the air.

[0043] Further, the clamping assembly 9 comprises a main plate 91 and a pressing rod 92, the pressing rod 92 is provided with a pressing head 93, the whole main plate 91 is installed on the side plate 21, the middle part of the pressing rod 92 is hinged to the main plate 91, the main plate is provided with a telescopic cylinder, the output end of the telescopic cylinder is hinged to the tail end of the pressing rod 92, and the bottom of the telescopic cylinder is hinged to the main plate 91; when the telescopic cylinder is extended, the pressing rod 92 rotates to drive the pressing head 93 to rotate and press the oil pump on the test fixture 2, the pressing rod 92 and the pressing head 93 are in L shape, which is convenient for pressing the oil pump, and the number of the mechanical hands can be set to 4-6 according to the use requirement.

[0044] In some embodiments, the test fixture 2 side is also provided with a connecting block 8, the connecting block 8 is provided with a female end for connecting with the joint of the oil pump, the female end is provided with a connecting line 81 connected with the control system for connecting the power supply and transmitting data, and the rack 1 is also provided with a display screen, and various detection data is displayed on the display screen, so that the detection data and the detection result can be directly observed.

[0045] In some embodiments, the inlet assembly 5 includes an inlet joint 51 and an inlet driving member 52, the inlet driving member 52 is connected with the inlet joint 51 to drive the inlet joint 51 to move reciprocally; the inlet joint 51 has a tapered end provided with a sealing ring around, and the inlet driving member 52 is a cylinder vertically installed on the rack 1, the inlet joint 51 is oppositely arranged with the oil inlet of the oil pump, and the inlet driving member 52 drives the inlet joint 51 to block the oil inlet on the oil pump.

[0046] In some embodiments, the outlet assembly 6 includes an outlet joint 61 and an outlet driving member 62, the outlet joint 61 is connected with an outlet pipe 64, the outlet driving member 62 is connected with the outlet joint 61 to drive the outlet joint 61 to move, the outlet joint 61 is provided with a sealing ring around and an air hole inside, the air hole is connected with the outlet pipe 64, and the other end of the outlet pipe 64 is connected with a pressure sensor 73 for detecting the pressure in the outlet pipe 64.

[0047] Further, the outlet driving member 62 includes a sliding table cylinder, the sliding table cylinder is connected with a mounting plate 63, the mounting plate 63 is connected with the inlet joint 51, the main body of the sliding table cylinder is fixed through a fixing plate, the fixing plate is fixedly attached to the side plate 21, the outlet joint 61 is fixedly attached with the mounting plate 63, the sliding table cylinder is horizontally arranged, the outlet joint 61 is oppositely arranged with the outlet of the oil pump, the sliding table cylinder is extended, and the outlet joint 61 is inserted into the outlet.

[0048] In some embodiments, the rotary driving member 71 includes a motor 74, a gear set and a transmission shaft 75, the transmission shaft 75 is connected with the output end of the motor 74 through the gear set, the transmission shaft 75 is connected with the connecting head 7 through a torque sensor 76, the transmission shaft 75 is vertically arranged, the output end of the motor 74 drives the transmission shaft 75 to rotate through gear engagement, the transmission shaft 75 drives the connecting head to rotate, the two ends of the torque sensor 76 can be connected with the transmission shaft 75 and the connecting head 7 through a shaft coupling, so as to ensure the connection fastening and prevent the circumferential movement, and the connecting head 7 is provided with a fixing groove matched with the output shaft of the oil pump at the bottom, after the connecting head 7 is lowered, the output shaft enters into the fixing groove, the connecting head 7 rotates to drive the rotor in the oil pump to rotate, and the torque is detected during the rotation.

[0049] Furthermore, the torque testing assembly also includes a vertical movement assembly, including a receiving plate 72 and a vertical drive component 77. A rotation drive component 71 is located on the receiving plate 72, and the vertical drive component 77 drives the receiving plate 72 to move up and down. The vertical drive component 77 is a hydraulic cylinder and is fixed to the top of the frame 1. At the same time, multiple guide rods are fixed to the top of the frame 1, and the receiving plate 72 moves along the guide rods.

[0050] By setting a vertical moving component to drive the receiving plate 72 to move vertically, when torque testing is required, the connecting head 7 is moved to connect with the output shaft on the oil pump to realize torque testing. The structure is simple and the testing is convenient.

[0051] In some implementations, the frame 1 is also equipped with a pressure sensor 73, a position sensor, etc., to detect whether the product is placed in place, to sense the internal pressure of the oil pump, and a vacuum pressure sensor 73 is used in the air outlet pipe 64 to sense the vacuum level, and the detection results are fed back to the control system to complete the detection.

[0052] Furthermore, a barcode scanner 82 is installed on rack 1.

[0053] The advantage of adopting the above technical solution is that the barcode scanner 82 is set to scan the barcode on each oil pump, mark each pump, and the test results can be checked.

[0054] The testing process begins with the protective door opening, controlled by a button. The operator scans the barcode on the oil pump to be tested and places it on test fixture 2. The high and low pressure testing ports on the pump are connected to the air inlet 3. The pump's connector is then connected to the connecting block 8. The protective door is closed, and the clamping assembly automatically clamps the pump. High or low pressure gas is then introduced for a high and low pressure test. The pressure sensor detects the test results and transmits them to the control system. After the test, the air inlet valve is closed. Next, inlet connector 51 and outlet connector 61 block the oil pump's inlet and outlet to perform a vacuum test. The vacuum level is detected by pressure sensor 73 connected to the outlet pipe 64, and the test results are transmitted to an external display screen. Then, inlet connector 51 and outlet connector 61 retract, connector 7 descends, and rotation drive 71 drives connector 7 to rotate for a free rotation test to ensure the pump is correctly assembled and can rotate without obstruction. The torque result is read by a sensor and transmitted to the external display screen. Based on the vacuum test results, the flow rate under that vacuum can be further calculated and transmitted to an external display screen. Air is used instead of engine oil in the test, which is called "dry testing". By ensuring that the dimensionless fluid numbers such as Reynolds number and Euler number are consistent, the similarity of the flow is ensured.

[0055] The device can complete pressure, vacuum degree and torque test of the product to be tested on the test device at one time, which helps to improve production efficiency, the device can use air as working medium to obtain oil pump performance through conversion, is safer to use, and helps to reduce cleaning workload and improve economic benefits.

[0056] For those skilled in the art, without departing from the creative concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model.

Claims

1. A dry test test apparatus for an oil pump, characterized by, The utility model relates to a test device for oil pump, which comprises: a rack (1) provided with a test fixture (2) for fixing an oil pump; a high-low pressure test assembly comprising an air inlet (3) arranged on the test fixture (2), wherein the air inlet (3) is connected with an air inlet pipe; a vacuum degree test assembly comprising an inlet assembly (5) and an outlet assembly (6), wherein the outlet assembly (6) is connected with an air outlet pipe (64); a torque test assembly comprising a connecting head (7) and a rotary driving member (71), wherein the rotary driving member (71) drives the connecting head (7) to rotate.

2. The dry test apparatus for an oil pump according to claim 1, characterized by The test fixture (2) comprises a side plate (21), a bottom plate (22) and a clamping assembly (9), the side plate (21) is vertically fixed on the rack (1) and is provided with a plurality of positioning pins (23) thereon, and the clamping assembly (9) is arranged around the side plate (21).

3. The dry test apparatus for an oil pump according to claim 1, characterized by The test fixture (2) is further provided with a connecting block (8) on the side, wherein the connecting block (8) is internally provided with a female end for connecting with a joint of the oil pump, and the female end is provided with a connecting line (81).

4. The dry test apparatus for an oil pump according to claim 1, characterized by The inlet assembly (5) comprises an inlet joint (51) and an inlet driving member (52), wherein the inlet driving member (52) is connected with the inlet joint (51) and drives the inlet joint (51) to reciprocate.

5. The dry test apparatus for an oil pump according to claim 1, characterized by The outlet assembly (6) comprises an outlet joint (61) and an outlet driving member (62), wherein the outlet joint (61) is connected with the air outlet pipe (64), and the outlet driving member (62) is connected with the outlet joint (61) and drives the outlet joint (61) to reciprocate.

6. The dry test apparatus for an oil pump according to claim 5, characterized by The outlet driving member (62) comprises a sliding table air cylinder, wherein the output end of the sliding table air cylinder is connected with a mounting plate (63), and the mounting plate (63) is connected with the outlet joint (61).

7. The dry test testing apparatus of an oil pump according to claim 1, wherein The rotary driving member (71) comprises a motor (74), a gear set and a transmission shaft (75), wherein the transmission shaft (75) is connected with the output end of the motor (74) through the gear set, and the transmission shaft (75) is connected with the connecting head (7) through a torque sensor (76).

8. A dry test testing apparatus for an oil pump according to claim 7, characterized by The torque test assembly further comprises a vertical movement assembly comprising a receiving plate (72) and a vertical driving member (77), wherein the rotary driving member (71) is located on the receiving plate (72), and the vertical driving member (77) drives the receiving plate (72) to move up and down.

9. The dry test apparatus for an oil pump of claim 5, wherein A pressure sensor (73) is further arranged in the air inlet pipe and the air outlet pipe (64).

10. The dry test testing apparatus of an oil pump according to claim 1, characterized by, A code scanner (82) is arranged on the rack (1).

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