Inertia impact testing device for hydraulic motor

Abstract

The utility model discloses an inertia impact test device for hydraulic motor, including base, the top left side fixed mounting of base has motor support seat, the top of base is from right to left gradually fixed with first flywheel support seat and second flywheel support seat, the left side of first flywheel support seat is rotated and is connected with the rotating shaft through the bearing, the utility model discloses a protection assembly is set up, when the flywheel high -speed rotation carries out the test, can play the effective protection effect to the flywheel, avoids the flywheel high -speed rotation to the operator and causes accidental injury, has improved the security of test device, and the protection cover in protection assembly can be opened and closed through the sliding of sliding block on the slide rod, and the operation is convenient, and through the cooperation of magic tape hook face and magic tape wool face can stably connect two protection covers together, guarantee protection effect.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic motor testing devices, specifically an inertial impact testing device for hydraulic motors. Background Technology

[0002] Hydraulic motors, as key actuators in hydraulic systems, are widely used in various engineering machinery and industrial equipment. In practical applications, hydraulic motors are often subjected to inertial shocks, such as during equipment startup, shutdown, reversal, and sudden load changes, requiring them to withstand significant inertial impact forces. These inertial shocks can lead to wear and fatigue damage of internal components, and even affect their overall performance and service life.

[0003] A patent with publication number CN209961436U discloses a motor inertial impact testing device. This device mounts a flywheel and a motor via a support structure on a base, using the inertia generated by the flywheel's rotation to simulate impact loads. However, in practical applications, this device has significant safety hazards: the high-speed rotating flywheel lacks an effective protection mechanism. When the flywheel experiences component loosening or breakage due to prolonged use, the flying fragments can easily cause personal injury to operators. Furthermore, the high-speed rotating components may also cause safety accidents due to accidental contact. Therefore, we propose an inertial impact testing device for hydraulic motors. Utility Model Content

[0004] The purpose of this invention is to provide an inertial impact testing device for hydraulic motors to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an inertial impact testing device for a hydraulic motor, comprising a base, a motor support seat fixedly installed on the top left side of the base, a first flywheel support seat and a second flywheel support seat fixedly connected from right to left on the top of the base, a rotating shaft rotatably connected to the left side of the first flywheel support seat via a bearing, the left end of the rotating shaft passing through the second flywheel support seat and extending to the outside of the second flywheel support seat and fixedly connected to a coupling, a flywheel fixedly sleeved on the surface of the rotating shaft, and a protective component provided on the top of the base.

[0006] Furthermore, a mounting groove is provided on the left side of the flywheel, and multiple identical fan-shaped counterweights are evenly distributed along the circumference of the inner wall of the mounting groove. The fan-shaped counterweights are fixed to the mounting groove by bolts, and the rotating shaft is movably connected to the second flywheel support.

[0007] Furthermore, the protective component includes a groove, a slide bar, a sliding block, a protective cover, a rectangular frame, a hook and loop fastener surface, and a groove is provided on the top of the base corresponding to the position of the flywheel.

[0008] Furthermore, the front and rear sides of the inner wall of the slide groove are fixedly connected by a slide rod, and two symmetrically arranged sliding blocks are slidably connected to the surface of the slide rod.

[0009] Furthermore, the sliding block is movably connected to the slide groove, and the top of the sliding block extends to the outside of the slide groove and is fixedly connected with a protective cover.

[0010] Furthermore, both of the protective covers have open sides that are close to each other, and a rectangular frame is fixedly fitted onto the surface of each protective cover.

[0011] Furthermore, hook and loop fasteners are fixedly connected to the sides of the two rectangular frames that are close to each other.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting up a protective component, can effectively protect the flywheel during high-speed rotation tests, avoiding accidental injury to operators caused by the high-speed rotation of the flywheel, and improving the safety of the testing device. The protective cover in the protective component can be opened and closed by sliding the sliding block on the sliding rod, which is convenient to operate. Moreover, the two protective covers can be firmly connected together by the cooperation of the hook and loop sides of the Velcro, ensuring the protective effect.

[0014] 2. The flywheel is equipped with a mounting slot and a sector-shaped counterweight. By increasing or decreasing the number of sector-shaped counterweights, the inertia of the flywheel can be easily adjusted to adapt to hydraulic motors of different specifications and testing requirements, thereby improving the versatility and flexibility of the testing device. The sector-shaped counterweights are fixed to the mounting slot with bolts, making installation and disassembly convenient and facilitating counterweight adjustment. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a top view of the structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the protective component of this utility model;

[0019] Figure 5 This is a structural schematic diagram of the base of this utility model.

[0020] In the diagram: 1. Base; 2. Motor support; 3. First flywheel support; 4. Second flywheel support; 5. Rotating shaft; 6. Coupling; 7. Flywheel; 8. Mounting slot; 9. Fan-shaped counterweight; 10. Protective component; 101. Slide groove; 102. Slide rod; 103. Sliding block; 104. Protective cover; 105. Rectangular frame; 106. Velcro hook side; 107. Velcro rough side; 11. Hydraulic motor. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] Please see Figure 1-5An inertial impact testing device for a hydraulic motor includes a base 1, which is integrally cast from high-strength cast iron, exhibiting excellent vibration resistance and structural stability. A motor support 2 is fixedly mounted on the top left side of the base 1, with mounting holes on its surface adapted to different models of hydraulic motors, allowing for fine-tuning of the motor's mounting position. From right to left, a first flywheel support 3 and a second flywheel support 4 are sequentially fixedly connected to the top of the base 1. Both the first flywheel support 3 and the second flywheel support 4 are rigidly connected to the base 1 via pre-embedded bolts, and their axes are strictly collinear to ensure smooth operation of rotating components. The left side of the first flywheel support 3 is rotatably connected to a bearing. The rotating shaft 5 is made of 40Cr alloy steel and has been heat-treated to have high strength and high toughness, and can withstand large torque impacts. The left end of the rotating shaft 5 passes through the second flywheel support 4 and extends to the outside of the second flywheel support 4 and is fixedly connected to the coupling 6. The flywheel 7 is fixedly sleeved on the surface of the rotating shaft 5. The left side of the flywheel 7 has an installation groove 8. Multiple identical fan-shaped counterweights 9 are evenly distributed along the circumference on the inner wall of the installation groove 8. The fan-shaped counterweights 9 are fixed to the installation groove 8 by bolts. The rotating shaft 5 is movably connected to the second flywheel support 4. The top of the base 1 is provided with a protective component 10 for safety protection of the high-speed rotating flywheel 7 during the test.

[0024] Please see Figure 1-5 The protective component 10 includes a slide groove 101, a slide rod 102, a sliding block 103, a protective cover 104, a rectangular frame 105, a hook and loop fastener surface 106, and a hook and loop fastener surface 107. A slide groove 101 is provided on the top of the base 1, corresponding to the position of the flywheel 7. The front and rear sides of the inner wall of the slide groove 101 are fixedly connected by the slide rod 102. Two symmetrically arranged sliding blocks 103 are slidably connected to the surface of the slide rod 102. The sliding blocks 103 are movably connected to the slide groove 101, and the movable connection between the sliding blocks 103 and the slide groove 101 is achieved through a clearance fit. The clearance is controlled between 0.1-0.3mm to ensure proper sliding. The sliding block 103 is flexible and prevents shaking. The top of the sliding block 103 extends to the outside of the slide groove 101 and is fixedly connected to a protective cover 104. The protective cover 104 is made of transparent polycarbonate sheet, which has the characteristics of high impact resistance and good light transmittance. It can effectively block splashes and facilitate the operator to observe the test status. The two protective covers 104 are open on the side that is close to each other. When closed, they can form a complete protective space. A rectangular frame 105 is fixedly fitted on the surface of the protective cover 104. The two rectangular frames 105 are respectively fixedly connected to the hook and loop side 106 and hook and loop side 107 on the side that is close to each other.

[0025] In practical application: During use, the hydraulic motor 11 to be tested is installed on the motor support 2. The output shaft of the hydraulic motor is fixedly connected to the left end of the rotating shaft 5 through the coupling 6. Then, the two protective covers 104 are pushed, so that the sliding block 103 slides on the sliding rod 102 until the two protective covers 104 come into contact with each other and cover the flywheel 7. At this time, the hook side 106 and the loop side 107 of the Velcro are stuck together, completing the protection preparation. Then, the hydraulic motor 11 is started to reverse the operation. During the reversal process, due to the inertial resistance generated by the flywheel 7 and the fan-shaped counterweight 9, the hydraulic motor 11 will be damaged during the reversal process. After the specified number of reversals, the hydraulic motor 11 is removed and the degree of internal damage is checked. During the test, the protective cover 104 can effectively prevent the flywheel 7 from causing injury to the operator when it rotates at high speed.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An inertial impact testing device for a hydraulic motor, comprising a base (1), characterized in that: A motor support seat (2) is fixedly installed on the top left side of the base (1). A first flywheel support seat (3) and a second flywheel support seat (4) are fixedly connected to the top of the base (1) from right to left. A rotating shaft (5) is rotatably connected to the left side of the first flywheel support seat (3) through a bearing. The left end of the rotating shaft (5) passes through the second flywheel support seat (4) and extends to the outside of the second flywheel support seat (4) and is fixedly connected to a coupling (6). A flywheel (7) is fixedly sleeved on the surface of the rotating shaft (5). A protective component (10) is provided on the top of the base (1).

2. The inertial impact testing device for a hydraulic motor according to claim 1, characterized in that: The flywheel (7) has an installation groove (8) on its left side. Multiple identical fan-shaped counterweights (9) are evenly distributed along the circumference of the inner wall of the installation groove (8). The fan-shaped counterweights (9) are fixed to the installation groove (8) by bolts. The rotating shaft (5) is movably connected to the second flywheel support (4).

3. The inertial impact testing device for a hydraulic motor according to claim 2, characterized in that: The protective component (10) includes a groove (101), a slide bar (102), a sliding block (103), a protective cover (104), a rectangular frame (105), a hook and loop fastener (106), and a loop and loop fastener (107). The groove (101) is provided on the top of the base (1) at the position corresponding to the flywheel (7).

4. The inertial impact testing device for a hydraulic motor according to claim 3, characterized in that: The front and rear sides of the inner wall of the slide groove (101) are fixedly connected by a slide rod (102), and two symmetrically arranged sliding blocks (103) are slidably connected to the surface of the slide rod (102).

5. The inertial impact testing device for a hydraulic motor according to claim 4, characterized in that: The sliding block (103) is movably connected to the slide groove (101), and the top of the sliding block (103) extends to the outside of the slide groove (101) and is fixedly connected to a protective cover (104).

6. The inertial impact testing device for a hydraulic motor according to claim 5, characterized in that: Both of the protective covers (104) are open on the side closest to each other, and a rectangular frame (105) is fixedly fitted on the surface of the protective cover (104).

7. The inertial impact testing device for a hydraulic motor according to claim 6, characterized in that: The two rectangular frames (105) are respectively fixedly connected to a hook and loop side (106) and a loop side (107) on the side that is close to each other.

Images