Electric oil feed pump test bench

Abstract

The utility model relates to electric oil pump technical field, and disclose a kind of electric oil pump test bench, including universal wheel, the universal wheel top is provided with test mechanism, the test mechanism front side is provided with protection mechanism, the test mechanism includes test bench body, the test bench body is fixedly connected in the universal wheel top, the test bench body left side is fixedly connected with support platform, the support platform top is fixedly connected with hydraulic cylinder, when using, by the test mechanism being set, when being tested by test bench body to electric oil pump, and the position of test bench body needs to be moved, under the action of universal wheel, test bench body can be driven to move, when moving to specified position, by hydraulic cylinder driving bearing seat moves, and make bearing seat drive connecting arm slide in the outer periphery of guide rod, make bearing seat bottom and ground contact, and lift universal wheel, make universal wheel away from ground.

Description

Technical Field

[0001] This utility model relates to the field of electric oil pump technology, specifically to an electric oil pump test bench. Background Technology

[0002] In the production and maintenance of electric oil pumps, performance testing is a crucial step in ensuring their stable operation. Precise testing of core indicators such as flow output, pressure stability, and adaptability to operating conditions is required using specialized testing equipment. Therefore, electric oil pump test benches have become indispensable core equipment in this field. However, existing test benches have the following drawbacks in use:

[0003] Traditional test benches, if prioritizing ease of movement, often rely solely on casters for position adjustment. However, the structural characteristics of casters result in a lack of stable support during operation, making the test bench susceptible to displacement due to equipment vibration or external interference, which affects the accuracy of test data. If a fixed support structure is used to ensure stability, the ability to move is completely lost. When it is necessary to move the test bench between different workshops or workstations, external lifting equipment is required, which is cumbersome, costly, and lacks flexibility.

[0004] During the testing of electric oil pumps, oil circulation is often accompanied by oil splashing, which may occur due to problems such as seal failure and pipeline pressure fluctuations. At the same time, some test conditions need to simulate extreme operating conditions, which poses a risk of component loosening and falling off. However, most existing test benches do not have targeted protective structures or only use simple baffles to block the operator's test view, making it impossible to observe the equipment's operating status in real time. Moreover, the protection range is limited and it is difficult to effectively isolate safety hazards.

[0005] Therefore, it is necessary to design an electric oil pump test bench to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an electric oil pump test bench to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an electric oil pump test bench, including casters, a test mechanism is provided on the top of the casters, and a protective mechanism is provided on the front side of the test mechanism;

[0008] The testing mechanism includes a test bench body, which is fixedly connected to the top of the casters. A support platform is fixedly connected to the left side of the test bench body. A hydraulic cylinder is fixedly connected to the top of the support platform. A load-bearing seat is fixedly connected to the bottom of the hydraulic cylinder. A connecting arm is fixedly connected to the front side of the top of the load-bearing seat. A guide rod is slidably connected to the inside of the right end of the connecting arm. A fixing frame is fixedly connected to the periphery of the guide rod. The fixing frame is fixedly connected to the left side of the test bench body. A support frame is fixedly connected to the bottom of the fixing frame. The rear side of the top of the support frame is fixedly connected to the bottom of the support platform.

[0009] Preferably, the right end of the connecting arm is slidably connected to the inside of the fixed frame, which facilitates the stability of the load-bearing seat movement through the connecting arm.

[0010] Preferably, the connecting arm, fixing frame, guide rod and support frame are provided in two sets and are symmetrically distributed on the front and rear sides of the support platform, so as to further ensure the stability of the load-bearing seat by setting two sets.

[0011] Preferably, the support base is rectangular and has an anti-slip pad at the bottom to improve the anti-slip effect.

[0012] Preferably, the support platform, hydraulic cylinder, load-bearing seat, connecting arm, fixing frame, support frame and guide rod are provided in two sets and symmetrically distributed on the left and right sides of the test platform body, so as to ensure the balance and stability of the test platform body by setting two sets.

[0013] Preferably, the protective mechanism includes a fixed frame, which is fixedly connected to the front side of the test bench body. A servo motor is fixedly connected to the left side of the fixed frame, and a rotating rod is fixedly connected to the right side of the servo motor. The rotating rod is rotatably connected inside the fixed frame, and a rotating platform is fixedly connected to the periphery of the rotating rod. A protective plate is inserted into the top of the rotating platform, and a fixed shaft is threaded inside the protective plate. A protective cover is fixedly connected to the left side of the fixed frame, and the protective cover is located outside the servo motor.

[0014] Preferably, the protective plate is transparent, the fixed shaft passes through the inside of the rotating table, the inner side of the protective cover does not contact the outer side of the servo motor, and a heat dissipation hole and a wiring groove are provided on the left side, which are arc-shaped and circular respectively, so as to ensure the stability of the protective plate through the fixed shaft.

[0015] Compared with the prior art, the present invention provides an electric oil pump test bench, which has the following beneficial effects:

[0016] 1. This electric oil pump test bench, through its designed testing mechanism, allows for movement of the test bench body when testing the electric oil pump. The casters move the test bench body to the designated position, and a hydraulic cylinder moves the load-bearing seat, causing the load-bearing seat to slide along the guide rod. This brings the bottom of the load-bearing seat into contact with the ground, lifting the casters away from the ground. The load-bearing seat provides stable support for the test bench body. Two sets of components—support platform, hydraulic cylinder, load-bearing seat, connecting arm, fixed frame, support frame, and guide rod—are symmetrically distributed on the left and right sides of the test bench body, further ensuring stability and balance during operation and guaranteeing stable testing.

[0017] 2. This electric oil pump test bench, through its protective mechanism, effectively isolates the risks of oil splashing and component detachment that may occur during the test without obstructing the test view when the test bench body is conducting tests on the electric oil pump. This protects the operator from injury. The protective plate achieves automated flipping control through a servo motor, rotating rod, and rotating table. The operator does not need to manually open and close the protective structure, reducing the frequency of direct contact with the test area and further reducing safety hazards. The protective cover surrounds the servo motor, preventing external dust and oil from entering the motor and affecting its operation, and also preventing the operator from accidentally touching the rotating parts. Furthermore, the protective plate is connected to the rotating table through a fixed shaft, facilitating installation, disassembly, and replacement. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the experimental mechanism.

[0022] Figure 4 This is a schematic diagram of the left side of the test bench body;

[0023] Figure 5 This is a schematic diagram of the bottom structure of the mounting bracket;

[0024] Figure 6This is a schematic diagram of the protective mechanism.

[0025] In the diagram: 1. Caster wheel; 2. Test mechanism; 3. Protective mechanism; 21. Test bench body; 22. Support platform; 23. Hydraulic cylinder; 24. Load-bearing seat; 25. Connecting arm; 26. Fixing frame; 27. Support frame; 28. Guide rod; 31. Fixing frame; 32. Rotating rod; 33. Servo motor; 34. Protective cover; 35. Rotating table; 36. Protective plate; 37. Fixed shaft. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] This utility model provides the following technical solution:

[0029] Example 1

[0030] Please see Figure 1-6 This utility model provides a technical solution: an electric oil pump test bench, including casters 1, a test mechanism 2 is provided on the top of the casters 1, and a protective mechanism 3 is provided on the front side of the test mechanism 2;

[0031] The test mechanism 2 includes a test bench body 21, which is fixedly connected to the top of the caster wheel 1. A support platform 22 is fixedly connected to the left side of the test bench body 21. A hydraulic cylinder 23 is fixedly connected to the top of the support platform 22. A load-bearing seat 24 is fixedly connected to the bottom of the hydraulic cylinder 23. A connecting arm 25 is fixedly connected to the front side of the top of the load-bearing seat 24. A guide rod 28 is slidably connected to the right end of the connecting arm 25. A fixing frame 26 is fixedly connected to the periphery of the guide rod 28. The fixing frame 26 is fixedly connected to the left side of the test bench body 21. A support frame 27 is fixedly connected to the bottom of the fixing frame 26. The rear side of the top of the support frame 27 is fixedly connected to the bottom of the support platform 22.

[0032] The right end of the connecting arm 25 is slidably connected to the inside of the fixed frame 26, which facilitates the stability of the movement of the load-bearing seat 24 through the connecting arm 25.

[0033] The connecting arm 25, the fixing frame 26, the guide rod 28 and the support frame 27 are provided in two sets and are symmetrically distributed on the front and rear sides of the support platform 22. By setting two sets, the stability of the load-bearing seat 24 can be further guaranteed.

[0034] The load-bearing base 24 is rectangular and has an anti-slip pad at the bottom to improve the anti-slip effect.

[0035] The support platform 22, hydraulic cylinder 23, load-bearing seat 24, connecting arm 25, fixing frame 26, support frame 27 and guide rod 28 are provided in two sets and symmetrically distributed on the left and right sides of the test platform body 21. By setting two sets, the balance and stability of the test platform body 21 can be guaranteed.

[0036] Example 2

[0037] Please see Figure 1-6 Furthermore, based on Embodiment 1, the protective mechanism 3 further includes a fixed frame 31, which is fixedly connected to the front side of the test bench body 21. A servo motor 33 is fixedly connected to the left side of the fixed frame 31, and a rotating rod 32 is fixedly connected to the right side of the servo motor 33. The rotating rod 32 is rotatably connected inside the fixed frame 31, and a rotating platform 35 is fixedly connected to the periphery of the rotating rod 32. A protective plate 36 is inserted into the top of the rotating platform 35, and a fixed shaft 37 is threaded inside the protective plate 36. A protective cover 34 is fixedly connected to the left side of the fixed frame 31, and the protective cover 34 is located outside the servo motor 33.

[0038] The protective plate 36 is transparent, and the fixed shaft 37 passes through the inside of the rotating table 35. The inner side of the protective cover 34 does not contact the outer side of the servo motor 33, and a heat dissipation hole and a wiring groove are provided on the left side, which are arc-shaped and circular respectively, so as to ensure the stability of the protective plate 36 through the fixed shaft 37.

[0039] In actual operation, when this device is used to test the electric oil pump through the test bench body 21 and the position of the test bench body 21 needs to be moved, the universal wheel 1 can drive the test bench body 21 to move. When it moves to the designated position, the hydraulic cylinder 23 drives the load-bearing seat 24 to move, and the load-bearing seat 24 drives the connecting arm 25 to slide around the guide rod 28, so that the bottom of the load-bearing seat 24 contacts the ground and lifts the universal wheel 1 away from the ground. Under the action of the load-bearing seat 24, the test bench body 21 can be supported and stabilized. The support platform 22, hydraulic cylinder 23, load-bearing seat 24, connecting arm 25, fixed frame 26, support frame 27 and guide rod 28 are provided in two sets and symmetrically distributed on the left and right sides of the test bench body 21, which can further ensure the stability and balance of the test bench body 21 during operation and ensure the stable conduct of the test.

[0040] Once the movement is complete, the electric oil pump can be fixed to the top of the test bench body 21 and connected to the test bench body 21. The servo motor 33 drives the rotating table 35, which is fixedly connected to the outer periphery of the rotating rod 32, to rotate. This causes the rotating table 35 to rotate the protective plate 36, positioning the protective plate 36 in front of the test bench body 21. The transparent protective plate 36 can effectively isolate the risks of oil splashing and component detachment that may occur during the test without obstructing the test view, thus protecting the operator from injury.

[0041] After the protection is completed, the electric oil pump can be tested. The protective plate 36 is automatically flipped through the servo motor 33, rotating rod 32 and rotating table 35. The operator does not need to manually open and close the protective structure, reducing the frequency of direct contact with the test area and further reducing safety hazards. The protective cover 34 is wrapped around the servo motor 33, which can prevent external dust and oil from entering the motor and affecting its operation, and also prevent the operator from accidentally touching the rotating parts. The protective plate 36 is connected to the rotating table 35 through the fixed shaft 37, which facilitates installation, disassembly and replacement.

[0042] The test bench body 21 used in this case is model PSB oil pump test bench, and the universal wheels 1 used are 5 inches in size, which are suitable for moving the test bench body 21.

[0043] The PSB oil pump test bench can test the flow output of electric transfer pumps at different speeds by adjusting the speed, and observe whether it meets the rated flow requirements and the stability of the flow. The speed of the 12PSB test bench can be preset arbitrarily from 0 to 4000 rpm, which can accurately control the running speed of the electric transfer pump, thereby accurately measuring its flow at different speeds.

[0044] This test bench can test the output pressure of electric transfer pumps, including low-pressure and high-pressure conditions. For example, the oil supply pressure of the 12PSB test bench is 0-0.4 MPa for low pressure and 0-4 MPa for high pressure. It can test whether the electric transfer pump can reach the corresponding pressure value under different operating conditions, and whether the pressure fluctuation range is within the allowable range.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An electric oil pump test bench, comprising casters (1), characterized in that: The top of the universal wheel (1) is provided with a test mechanism (2), and the front side of the test mechanism (2) is provided with a protective mechanism (3). The test mechanism (2) includes a test bench body (21), which is fixedly connected to the top of the caster wheel (1). A support platform (22) is fixedly connected to the left side of the test bench body (21). A hydraulic cylinder (23) is fixedly connected to the top of the support platform (22). A load-bearing seat (24) is fixedly connected to the bottom of the hydraulic cylinder (23). A connecting arm (25) is fixedly connected to the front side of the top of the load-bearing seat (24). A guide rod (28) is slidably connected to the right end of the connecting arm (25). A fixing frame (26) is fixedly connected to the periphery of the guide rod (28). The fixing frame (26) is fixedly connected to the left side of the test bench body (21). A support frame (27) is fixedly connected to the bottom of the fixing frame (26). The rear side of the top of the support frame (27) is fixedly connected to the bottom of the support platform (22).

2. The electric oil pump test bench according to claim 1, characterized in that: The right end of the connecting arm (25) is slidably connected to the inside of the fixing frame (26).

3. The electric oil pump test bench according to claim 1, characterized in that: The connecting arm (25), the fixing frame (26), the guide rod (28) and the support frame (27) are provided in two sets and are symmetrically distributed on the front and rear sides of the support platform (22).

4. The electric oil pump test bench according to claim 1, characterized in that: The load-bearing base (24) is rectangular and has an anti-slip pad at the bottom.

5. The electric oil pump test bench according to claim 1, characterized in that: The support platform (22), hydraulic cylinder (23), load-bearing seat (24), connecting arm (25), fixing frame (26), support frame (27) and guide rod (28) are provided in two sets and are symmetrically distributed on the left and right sides of the test platform body (21).

6. The electric oil pump test bench according to claim 1, characterized in that: The protective mechanism (3) includes a fixed frame (31), which is fixedly connected to the front side of the test bench body (21). A servo motor (33) is fixedly connected to the left side of the fixed frame (31), and a rotating rod (32) is fixedly connected to the right side of the servo motor (33). The rotating rod (32) is rotatably connected inside the fixed frame (31). A rotating table (35) is fixedly connected to the outside of the rotating rod (32). A protective plate (36) is inserted into the top of the rotating table (35). A fixed shaft (37) is threaded inside the protective plate (36). A protective cover (34) is fixedly connected to the left side of the fixed frame (31). The protective cover (34) is located outside the servo motor (33).

7. The electric oil pump test bench according to claim 6, characterized in that: The protective plate (36) is transparent, the fixed shaft (37) passes through the inside of the rotating table (35), the inner side of the protective cover (34) does not contact the outer side of the servo motor (33), and a heat dissipation hole and a wiring groove are provided on the left side, which are respectively arc-shaped and circular.

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