A vane pump vane wear tester

Abstract

The application discloses a kind of vane pump vane wear testing machine, it is related to vane pump vane performance test technical field, including pedestal, the pedestal is installed with rotating shaft by operating assembly, the one end of the rotating shaft is fixedly installed with multiple test vanes, the pedestal is fixedly connected with working cylinder, the inner wall of the working cylinder is installed with test grinding disc, the pedestal is also installed with liquid flow simulation assembly;The liquid flow simulation assembly includes liquid tank, reflux pipe, reflux port, working pipe, working turbine, connecting pipe, connecting hose and fixed pipe, the liquid tank is fixedly connected on pedestal, one end of the reflux pipe is fixedly connected on liquid tank, and the other end of the reflux pipe is fixedly connected on working cylinder through pedestal, the reflux port is opened on working cylinder.The application can better simulate the real working condition of vane pump, and then carry out multi-aspect wear test operation, and provide test quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of blade performance testing of a vane pump, and particularly relates to a vane pump blade wear testing machine. BACKGROUND

[0002] The prior art discloses a vane pump blade wear testing machine with the application number CN201520807726.6, which proposes that one of the main factors limiting the service life of a vane pump is the friction and wear between the vane and the surface of the vane groove. In order to ensure the production quality, it is necessary to simulate the friction environment of the vane and detect the wear resistance of the vane.

[0003] The prior art has the following disadvantages: in the prior art, the vane sample is directly in contact with the friction disc for friction testing, and only the oil nozzle is used for oil injection assistance. In the actual working process of the vane pump, the friction area of the vane is immersed in liquid, and the presence of the liquid will have a great impact on the friction of the vane. However, the prior art cannot well simulate the situation.

[0004] Meanwhile, with the change of the rotation speed of the vane, the speed of the liquid flow will also change. The fast-flowing liquid will impact the vane, thereby affecting the friction state of the vane. In the actual production process, the impact position of the liquid on the vane is also different, and the change of the impact position will also affect the friction state of the vane. However, the prior art does not simulate and test such problems, which is not conducive to the high-quality wear testing.

[0005] Therefore, the present application provides a vane pump blade wear testing machine to solve the above problems. SUMMARY

[0006] The present application aims to solve the problems in the prior art and provides a vane pump blade wear testing machine.

[0007] To achieve the above object, the present application adopts the following technical scheme:

[0008] A vane pump blade wear testing machine comprises a base, a rotating shaft is installed on the base through an operating assembly, a plurality of test vanes are fixedly installed at one end of the rotating shaft, a working cylinder is fixedly connected to the base, a test grinding disc is installed on the inner wall of the working cylinder, and a liquid flow simulation assembly is also installed on the base.

[0009] The liquid flow simulation assembly comprises a liquid tank, a return pipe, a return port, a working pipe, a working turbine, a connecting pipe, a connecting hose and a fixing pipe, the liquid tank is fixedly connected to the base, one end of the return pipe is fixedly connected to the liquid tank, the other end of the return pipe penetrates through the base and is fixedly connected to the working cylinder, the return port is opened in the working cylinder, and the two ends of the return pipe are in communication with the return port and the liquid tank respectively, the working pipe is rotatably connected to the rotating shaft, the working turbine is fixedly connected to the rotating shaft and located in the working pipe, the fixing pipe is fixed to the liquid tank, the connecting hose is fixedly connected to the fixing pipe, the connecting pipe is fixedly connected to the other end of the connecting hose and is installed on the base through the position control structure, the other end of the connecting pipe is in communication with the working pipe, and the conveying structure is installed on the working pipe.

[0010] As another technical solution, the conveying structure comprises a plurality of conveying holes, a plurality of conveying pipes and a plurality of injection holes, the plurality of conveying holes are opened in the lower end side wall of the working pipe, the plurality of conveying pipes are installed on the working pipe and in communication with the plurality of conveying holes, and the plurality of injection holes are respectively opened in the plurality of conveying pipes.

[0011] As another technical solution, the working pipe is provided with an impact variable control structure, the impact variable control structure comprises a control shell, a control cavity, an annular groove, an annular block and a plurality of connecting rods, the control shell is rotatably connected to the working pipe, the annular groove is opened in the outer wall of the working pipe, the annular block is rotatably connected in the annular groove, the annular block is fixedly connected to the control shell, the control cavity is opened in the control shell and in communication with the plurality of conveying holes and the plurality of conveying pipes, one end of the plurality of connecting rods is fixedly connected to the control shell, the other end of the plurality of connecting rods is fixedly connected to the rotating shaft, and the plurality of injection holes are unevenly distributed on the plurality of conveying pipes.

[0012] As another technical solution, the operating assembly comprises a support frame, a lifting device, a lifting shaft, a mounting frame and a rotating device, the support frame is fixedly connected to the base, and the lifting device is fixedly installed at the other end of the support frame, the lifting shaft is installed on the lifting device, and the mounting frame is fixedly connected to the other end of the lifting shaft, the rotating device is fixedly installed on the mounting frame, and the rotating shaft is fixedly connected to the output end of the rotating device.

[0013] As another technical solution, the position control structure comprises a position control frame, a position control groove, a position control block and a position control rod, the position control frame is fixedly connected to the base, and the position control groove is opened in the position control frame, the position control block is slidably connected in the position control groove, and one end of the position control rod is fixedly connected to the position control block, and the other end of the position control rod is fixedly connected to the connecting pipe.

[0014] As another technical scheme, the inner wall of the working cylinder is fixedly connected with a mounting ring, a plurality of mounting holes are formed in the mounting ring, a plurality of mounting bolts are slidably connected in the mounting holes, the mounting bolts are fixedly connected to the test millstone, and mounting nuts are threadedly connected to the mounting bolts.

[0015] As another technical scheme, a plurality of feeding ports are formed in the upper end of the working pipe, and a feeding shell is fixedly connected to the upper end of the working pipe, the connecting pipe is fixedly connected to the feeding shell, and the connecting pipe is in communication with the inner cavity of the feeding shell.

[0016] As another technical scheme, a plurality of feet are fixedly connected to the lower end surface of the base.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] 1. In the present application, when the rotating shaft controls the test blade to contact the test millstone for wear resistance test, the liquid tank and the working cylinder cooperate to immerse the test area in the liquid, and the working turbine is driven to rotate by the rotating shaft, so that the liquid can circulate and flow, simulating the working state of the real blade pump, and then better completing the test work.

[0019] 2. In the present application, the working turbine connected with the rotating shaft can change the rotating speed according to the rotating speed of the test blade, and then change the delivery speed of the liquid, cooperate with the delivery pipe and the injection hole, so that the liquid can impact the blade at different speeds, and then more comprehensively complete the blade wear test work.

[0020] 3. In the present application, a plurality of delivery pipes can rotate with a plurality of test blades, while maintaining the injection of liquid. Here, a plurality of injection holes are unevenly formed on the plurality of delivery pipes, so that the positions of the liquid impact on different test blades are different. Cooperating with the work of a plurality of test blades, different test requirements can be efficiently completed, meeting the wear resistance test requirements of the workers. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A perspective structural schematic view of a blade pump blade wear tester is provided.

[0022] Figure 2 A perspective structural schematic view of a blade pump blade wear tester is provided.

[0023] Figure 3 A perspective structural schematic view of a blade pump blade wear tester is provided.

[0024] Figure 4A partial perspective structural section view of a vane pump vane wear testing machine is provided in the present application;

[0025] Figure 5 A partial perspective structural section view of a ring groove of a vane pump vane wear testing machine is provided in the present application;

[0026] Figure 6 A partial perspective structural section view of a mounting ring of a vane pump vane wear testing machine is provided in the present application;

[0027] Figure 7 A partial perspective structural section view of a feeding port of a vane pump vane wear testing machine is provided in the present application;

[0028] Figure 8 A partial perspective structural section view of a working turbine of a vane pump vane wear testing machine is provided in the present application.

[0029] In the figure: 1 base, 2 rotating shaft, 3 test vane, 4 working cylinder, 5 test grinding disc, 6 liquid tank, 7 backflow pipe, 8 backflow port, 9 working pipe, 10 working turbine, 11 connecting pipe, 12 connecting hose, 13 fixed pipe, 14 conveying hole, 15 conveying pipe, 16 injection hole, 17 control cavity, 18 ring groove, 18 ring groove, 19 ring block, 20 connecting rod, 21 support frame, 22 lifting device, 23 lifting shaft, 24 mounting frame, 25 rotating device, 26 control position frame, 27 control position groove, 28 control position block, 29 control position rod, 30 mounting ring, 31 mounting hole, 32 mounting bolt, 33 mounting nut, 34 feeding port, 35 feeding empty shell, 36 pad foot, 37 control shell. DETAILED DESCRIPTION

[0030] REFERENCE Figures 1-8 A vane pump vane wear testing machine, comprising a base 1, a rotating shaft 2 is installed on the base 1 through an operating assembly, a plurality of test vanes 3 are fixedly installed on one end of the rotating shaft 2, a working cylinder 4 is fixedly connected on the base 1, a test grinding disc 5 is installed on the inner wall of the working cylinder 4, and a liquid flow simulation assembly is also installed on the base 1;

[0031] The rotating shaft drives the plurality of test vanes 3 to rotate, the test vanes 3 contact the test grinding disc 5 to rotate, the friction test work is completed, and then the wear test is completed by the staff;

[0032] The liquid flow simulation assembly comprises a liquid tank 6, a return pipe 7, a return port 8, a working pipe 9, a working turbine 10, a connecting pipe 11, a connecting hose 12 and a fixing pipe 13, the liquid tank 6 is fixedly connected to the base 1, one end of the return pipe 7 is fixedly connected to the liquid tank 6, the other end of the return pipe 7 penetrates through the base 1 and is fixedly connected to the working cylinder 4, the return port 8 is opened on the working cylinder 4, and the two ends of the return pipe 7 are in communication with the return port 8 and the liquid tank 6 respectively, the working pipe 9 is rotatably connected to the rotating shaft 2, the working turbine 10 is fixedly connected to the rotating shaft 2, and the working turbine 10 is located in the working pipe 9, the fixing pipe 13 is fixed to the liquid tank 6, the connecting hose 12 is fixedly connected to the fixing pipe 13, the connecting pipe 11 is fixedly connected to the other end of the connecting hose 12, and the connecting pipe 11 is installed on the base 1 through a control position structure, the other end of the connecting pipe 11 is in communication and fixation with the working pipe 9, and the working pipe 9 is provided with a conveying structure;

[0033] Here, the liquid tank 6 and the working cylinder 4 are connected through the return pipe 7, so that the contact friction area of the test blade 3 and the test grinding disc 5 is soaked in the liquid, and when the wear test is performed, the liquid can fully contact the test blade 3 and the test grinding disc 5, the working environment of the blade pump is simulated, and the wear test work is better completed, and at the same time, the rotating rotating shaft 2 drives the working turbine 10 to rotate, so that the liquid in the liquid tank 6 enters the working cylinder 4 through the fixing pipe 13, the connecting hose 12, the connecting pipe 11 and the working pipe 9, and the circulation flow is completed in cooperation with the return pipe 7, the real environment is further simulated, and the wear test work is better completed;

[0034] With reference to Figure 4 The conveying structure comprises a plurality of conveying holes 14, a plurality of conveying pipes 15 and a plurality of jet holes 16, the plurality of conveying holes 14 are all opened on the lower end side wall of the working pipe 9, the plurality of conveying pipes 15 are all installed on the working pipe 9, and the plurality of conveying pipes 15 are in communication with the plurality of conveying holes 14, and the plurality of jet holes 16 are respectively opened on the plurality of conveying pipes 15;

[0035] Through the plurality of conveying holes 14, the liquid in the working pipe 9 enters the conveying pipe 15, and then is sprayed onto the plurality of test blades 3 below through the plurality of jet holes 16, here, the state that the blades are impacted by the liquid flow when the blade pump is actually working can be simulated, at the same time, the rotation speed of the test blade 3 is changed in cooperation with the rotating shaft 2, the liquid flow speed also changes synchronously, the impact force also changes and adjusts, and then the simulation wear test work is better completed;

[0036] With reference to Figure 4 and Figure 5, the working pipe 9 is provided with an impact variable control structure, the impact variable control structure comprises a control shell 37, a control cavity 17, an annular groove 18, an annular block 19 and a plurality of connecting rods 20, the control shell 37 is rotationally connected to the working pipe 9, the annular groove 18 is opened on the outer wall of the working pipe 9, the annular block 19 is rotationally connected in the annular groove 18, the annular block 19 is fixedly connected to the control shell 37, the control cavity 17 is opened in the control shell 37, and the control cavity 17 is in communication with the plurality of conveying holes 14 and the plurality of conveying pipes 15, one end of the plurality of connecting rods 20 is fixedly connected to the control shell 37, and the other end of the plurality of connecting rods 20 is fixedly connected to the rotating shaft 2, and the plurality of injection holes 16 are unevenly distributed on the plurality of conveying pipes 15;

[0037] The plurality of injection holes 16 are unevenly distributed on the plurality of conveying pipes 15, that is, the number and position of the injection holes 16 on the plurality of conveying pipes 15 are different. Due to the presence of the connecting rods 20, the plurality of conveying pipes 15 can rotate with the rotating shaft 2 and the test blades 3, and the plurality of conveying pipes 15 can always be aligned with the plurality of test blades 3. The plurality of conveying pipes 15 can impact the plurality of test blades 3 at different positions by virtue of the different states of the injection holes 16. The plurality of test blades 3 can complete the test work under different impact states, greatly meeting the test requirements of the workers.

[0038] Referring to Figure 1 , the operation assembly comprises a support frame 21, a lifting device 22, a lifting shaft 23, a mounting frame 24 and a rotating device 25, the support frame 21 is fixedly connected to the base 1, the lifting device 22 is fixedly installed at the other end of the support frame 21, the lifting shaft 23 is installed on the lifting device 22, the mounting frame 24 is fixedly connected to the other end of the lifting shaft 23, and the rotating device 25 is fixedly installed on the mounting frame 24, and the rotating shaft 2 is fixedly connected to the output end of the rotating device 25;

[0039] The lifting device 22 controls the lifting shaft 23 to ascend, so that the mounting frame 24 and the rotating device 25 and other structures are at a high position, facilitating the workers to replace and install the test blades 3 and the test millstones 5 and other structures. The lifting device 22 controls the lifting shaft 23 to descend, so that the installed test blades 3 descend to contact the test millstones 5. The rotating device 25 controls the rotating shaft 2 to rotate, thereby controlling the test blades 3 to rotate on the test millstones 5 to complete the abrasion test work.

[0040] Referring to Figure 1 , the control structure comprises a control frame 26, a control groove 27, a control block 28 and a control rod 29, the control frame 26 is fixedly connected to the base 1, the control groove 27 is opened on the control frame 26, the control block 28 is slidingly connected in the control groove 27, and one end of the control rod 29 is fixedly connected to the control block 28, and the other end of the control rod 29 is fixedly connected to the connecting pipe 11;

[0041] The connection pipe 11 and the working pipe 9 connected with the control rod 29 can be stably lifted by the sliding of the control block 28 in the control slot 27, and will not rotate unexpectedly with the rotating shaft 2, which ensures that the work of the working turbine 10 on the liquid can be smoothly completed when the working turbine 10 rotates, and the existence of the connection hose 12 makes the lifting work not be interfered;

[0042] Referring to Figure 6 The inner wall of the working cylinder 4 is fixedly connected with a mounting ring 30, a plurality of mounting holes 31 are formed in the mounting ring 30, a plurality of mounting bolts 32 are slidably connected in the plurality of mounting holes 31, the plurality of mounting bolts 32 are fixedly connected to the test grinding disc 5, and a mounting nut 33 is threadedly connected to each of the plurality of mounting bolts 32;

[0043] The test grinding disc 5 is placed into the working cylinder 4, so that the plurality of mounting bolts 32 are distributed and inserted into the plurality of mounting holes 31, and then the plurality of mounting nuts 33 are threadedly connected to the corresponding mounting bolts 32 to complete the installation of the test grinding disc 5 at the fixed position of the working cylinder 4;

[0044] Referring to Figure 7 A plurality of feeding ports 34 are formed in the upper end of the working pipe 9, and a feeding hollow shell 35 is fixedly connected to the upper end of the working pipe 9, the connection pipe 11 is fixedly connected to the feeding hollow shell 35, and the connection pipe 11 is in communication with the inner cavity of the feeding hollow shell 35, and the plurality of feeding ports 34 are in communication with the inner cavity of the feeding hollow shell 35;

[0045] The working pipe 9 and the connection pipe 11 are in communication by means of the feeding port 34 and the feeding hollow shell 35, and in the process of rotating and pumping by the working turbine 10, the liquid in the connection pipe 11 can enter the working pipe 9 through the feeding hollow shell 35 and the feeding port 34, and then subsequent work is performed;

[0046] Referring to Figure 2 A plurality of feet 36 are fixedly connected to the lower end surface of the base 1;

[0047] The feet 36 make the placement of the base 1 more stable, and then make the wear test work flow more stable.

[0048] In use, first, the lifting device 22 controls the lifting shaft 23 to rise, so that the mounting frame 24 and the rotating device 25 and other structures are at a high place, the workers carry out the replacement and installation of the test blade 3 and the test grinding disc 5 and other structures, the test grinding disc 5 is placed into the working cylinder 4, so that the plurality of mounting bolts 32 are distributed and inserted into the plurality of mounting holes 31, then the plurality of mounting nuts 33 are screwed on the corresponding mounting bolts 32 to complete the installation of the test grinding disc 5 in the fixed position of the working cylinder 4, after the installation and fixation of the test blade 3 are completed, the lifting device 22 controls the lifting shaft 23 to descend, so that the installed test blade 3 descends to contact the test grinding disc 5, the rotating device 25 controls the rotating shaft 2 to rotate, and then controls the test blade 3 to rotate on the test grinding disc 5 to complete the wear test work;

[0049] Here, the liquid tank 6 and the working cylinder 4 are connected through the backflow pipe 7, so that the contact and friction area of the test blade 3 and the test grinding disc 5 is immersed in the liquid, when the wear test is carried out, the liquid can fully contact the test blade 3 and the test grinding disc 5, simulate the working environment of the blade pump, so that the wear test work is completed with higher quality, at the same time, the rotating rotating shaft 2 drives the working turbine 10 to rotate, so that the liquid in the liquid tank 6 enters the working cylinder 4 through the fixed pipe 13, the connecting hose 12, the connecting pipe 11 and the working pipe 9, and cooperates with the backflow pipe 7 to complete the circulation flow, further simulates the real environment, so that the wear test work is better completed, the plurality of conveying holes 14 makes the liquid in the working pipe 9 enter the conveying pipe 15, and then is sprayed onto the plurality of test blades 3 below through the plurality of spray holes 16, here, the state that the blades are impacted by the liquid flow when the blade pump is actually working can be simulated, at the same time, the rotation speed of the test blade 3 driven by the rotating shaft 2 is changed, the liquid flow speed is also changed synchronously, and the impact force is also changed and adjusted, and then the simulation wear test work is better completed;

[0050] The plurality of spray holes 16 are unevenly distributed on the plurality of conveying pipes 15, that is, the number and position of the spray holes 16 on the plurality of conveying pipes 15 are different, and due to the existence of the connecting rod 20, the plurality of conveying pipes 15 can rotate with the rotating shaft 2 and the test blade 3, the plurality of conveying pipes 15 can always be aligned with the plurality of test blades 3, the plurality of conveying pipes 15 can impact the plurality of test blades 3 at different positions through different spray holes 16, and the plurality of test blades 3 can cooperate to complete the test work under different impact states, greatly meeting the test demand of the workers.

Claims

1. A vane pump vane wear tester comprising a base (1), characterised in that, The base (1) is provided with a rotating shaft (2) through an operating assembly, one end of the rotating shaft (2) is fixedly provided with a plurality of test blades (3), the base (1) is fixedly connected with a working cylinder (4), the inner wall of the working cylinder (4) is provided with a test grinding disc (5), and the base (1) is further provided with a liquid flow simulation assembly; The liquid flow simulation assembly comprises a liquid tank (6), a return pipe (7), a return port (8), a working pipe (9), a working turbine (10), a connecting pipe (11), a connecting hose (12) and a fixing pipe (13), the liquid tank (6) is fixedly connected to the base (1), one end of the return pipe (7) is fixedly connected to the liquid tank (6), the other end of the return pipe (7) penetrates through the base (1) and is fixedly connected to the working cylinder (4), the return port (8) is formed in the working cylinder (4), and the two ends of the return pipe (7) are in communication with the return port (8) and the liquid tank (6) respectively, the working pipe (9) is rotatably connected to the rotating shaft (2), the working turbine (10) is fixedly connected to the rotating shaft (2), and the working turbine (10) is located in the working pipe (9), the fixing pipe (13) is fixed to the liquid tank (6), the connecting hose (12) is fixedly connected to the fixing pipe (13), the connecting pipe (11) is fixedly connected to the other end of the connecting hose (12) and is installed on the base (1) through a control structure, the other end of the connecting pipe (11) is in communication and fixation with the working pipe (9), the working pipe (9) is provided with a conveying structure, the conveying structure comprises a plurality of conveying holes (14), a plurality of conveying pipes (15) and a plurality of injection holes (16), the plurality of conveying holes (14) are formed in the lower end side wall of the working pipe (9), the plurality of conveying pipes (15) are installed on the working pipe (9) and are in communication with the plurality of conveying holes (14), and the plurality of injection holes (16) are formed in the plurality of conveying pipes (15) respectively, the working pipe (9) is provided with an impact variable control structure, the impact variable control structure comprises a control shell (37), a control cavity (17), an annular groove (18), an annular block (19) and a plurality of connecting rods (20), the control shell (37) is rotatably connected to the working pipe (9), the annular groove (18) is formed in the outer wall of the working pipe (9), the annular block (19) is rotatably connected in the annular groove (18), the annular block (19) is fixedly connected to the control shell (37), the control cavity (17) is formed in the control shell (37) and is in communication with the plurality of conveying holes (14) and the plurality of conveying pipes (15), one end of the plurality of connecting rods (20) is fixedly connected to the control shell (37), the other end of the plurality of connecting rods (20) is fixedly connected to the rotating shaft (2), and the plurality of injection holes (16) are unevenly distributed on the plurality of conveying pipes (15).

2. A vane wear tester for a vane pump vane according to claim 1, wherein The operating assembly comprises a support frame (21), a lifting device (22), a lifting shaft (23), a mounting frame (24) and a rotating device (25), the support frame (21) is fixedly connected to the base (1), the lifting device (22) is fixedly installed at the other end of the support frame (21), the lifting shaft (23) is installed on the lifting device (22), the mounting frame (24) is fixedly connected to the other end of the lifting shaft (23), the rotating device (25) is fixedly installed on the mounting frame (24), and the rotating shaft (2) is fixedly connected to the output end of the rotating device (25).

3. A vane wear tester for a vane pump vane according to claim 1, wherein The position control structure comprises a position control frame (26), a position control groove (27), a position control block (28) and a position control rod (29), the position control frame (26) is fixedly connected to the base (1), the position control groove (27) is opened in the position control frame (26), the position control block (28) is slidingly connected in the position control groove (27), one end of the position control rod (29) is fixedly connected to the position control block (28), and the other end of the position control rod (29) is fixedly connected to the connecting pipe (11).

4. A vane wear tester for a vane pump vane according to claim 1, wherein A mounting ring (30) is fixedly connected to the inner wall of the working cylinder (4), a plurality of mounting holes (31) are opened in the mounting ring (30), a plurality of mounting bolts (32) are slidingly connected in the mounting holes (31), the mounting bolts (32) are fixedly connected to the test grinding disc (5), and mounting nuts (33) are threadedly connected to the mounting bolts (32).

5. A vane pump vane wear tester according to claim 1 wherein, A plurality of feeding ports (34) are opened in the upper end of the working pipe (9), a feeding hollow shell (35) is fixedly connected to the upper end of the working pipe (9), the connecting pipe (11) is fixedly connected to the feeding hollow shell (35), the connecting pipe (11) and the inner cavity of the feeding hollow shell (35) are in communication, and the feeding ports (34) are in communication with the inner cavity of the feeding hollow shell (35).

6. A vane pump vane wear tester according to claim 1 wherein, A plurality of supporting legs (36) are fixedly connected to the lower end surface of the base (1).

Images