Hydraulic and pneumatic transmission teaching experiment table

Abstract

The utility model discloses a hydraulic and pneumatic transmission teaching experiment table, and relates to the technical field of teaching experiment tables. An inclined operation surface, a horizontal operation surface and a bottom box are respectively arranged at the top end, the middle part and the bottom end of the test bed; a pair of vertical plates is fixed to the end, close to an inclined operation face, of a horizontal operation face of the test bed, a fixing rod is arranged in the middle of the inner side of each vertical plate, a rotating rod rotating around the axis of the fixing rod is arranged at the top of each vertical plate, an adjusting groove for the rotating rod to rotate is formed in each vertical plate, and the adjusting grooves and the fixing rods are coaxially arranged; the adjusting angle of the rotating rod around the fixed rod is 0-90 degrees; the rotating rod is matched with the fixed rod, the adjusting groove is reasonable in design, the rotating rod can flexibly rotate within the range of 0-90 degrees, a user can conveniently adjust the angle according to experiment requirements, the rotating rod can be stably fixed through the fastening knob after adjustment, and a stable supporting structure is provided for experiments.

Description

TECHNICAL FIELD

[0001] The utility model relates to teaching experiment table technical field, concretely is hydraulic and pneumatic drive teaching experiment table. BACKGROUND

[0002] In the modern industrial automation process, hydraulic and pneumatic drive technology as the key basic technology, is widely used in mechanical manufacturing, automobile industry, aerospace and many other fields. Therefore, in the teaching process of relevant majors, it is particularly important for students to deeply understand and master the principle and application of hydraulic and pneumatic drive.

[0003] Some existing teaching experiment tables can carry out certain experimental operations, but there are obvious deficiencies in structure design and function setting. The existing operation screen is generally of fixed structure and is located outside the display area. After operating through the operation screen, it is necessary to observe the experimental effect in the display area, which may miss the display of some experimental states. The layout of the experiment table is unreasonable, the operation is inconvenient, and the teaching efficiency is affected. The operation and the display of hydraulic and pneumatic drive are not convenient to cooperate. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a hydraulic and pneumatic drive teaching experiment table.

[0005] In order to realize the above purpose, the technical scheme of the utility model is as follows:

[0006] The hydraulic and pneumatic drive teaching experiment table comprises a test table; the top end, the middle and the bottom end of the test table are respectively provided with an inclined operation surface, a horizontal operation surface and a bottom box;

[0007] One end of the horizontal operation surface of the test table close to the inclined operation surface is fixed with a pair of vertical plates, the middle of the inner side of the vertical plate is provided with a fixed rod, the top of the vertical plate is provided with a rotating rod rotating around the axis of the fixed rod, an adjusting groove for the rotation of the rotating rod is formed in the vertical plate, the adjusting groove and the fixed rod are coaxially arranged, and the adjusting angle of the rotating rod around the fixed rod is 0°-90°.

[0008] The fixed rod and the rotating rod are both transversely connected with a sleeve, the sleeve can rotate circumferentially on the fixed rod and the rotating rod, and the sleeve is provided with an operation screen on one side.

[0009] Preferably, the two ends of the rotating rod are fastened through fastening knobs, the fastening knobs adopt threaded rods, and the rotating rod is provided with threaded holes corresponding to the positions of the threaded rods.

[0010] Preferably, the inner surface of the sleeve is embedded with balls, and the balls are in contact with the surfaces of the fixed rod and the rotating rod.

[0011] Preferably, the sleeve and the fixed rod and the rotating rod are left with a gap in the contact surface, and the gap between the sleeve and the fixed rod and the rotating rod is 0.2mm-2mm.

[0012] Preferably, the depth of the adjusting groove is greater than the diameter of the end of the rotating rod, and the depth of the adjusting groove is less than the diameter of the rotating rod located inside the vertical plate.

[0013] Preferably, the pump station and the high-pressure air bottle are installed in the bottom box of the test bench, and the hydraulic transmission unit and the pneumatic transmission unit are installed in the inclined operation surface of the test bench.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. Angle adjustment convenience: the rotating rod cooperates with the fixed rod, the adjusting groove is reasonably designed, the rotating rod can be flexibly rotated in the range of 0°-90°, the user can conveniently adjust the angle according to the experimental requirements, and after adjustment, the angle can be stably fixed through the fastening knob, thereby providing a stable support structure for the experiment.

[0016] 2. Position adjustment flexibility: the sleeve is connected with the fixed rod and the rotating rod through the ball to realize low-friction transverse sliding connection, the user can easily adjust the position of the operation screen or other components, and the requirement of flexibly adjusting the position of the components in different experimental scenes can be met, such as moving the display screen to the corresponding area in the hydraulic transmission experiment, and the stability of the position of the components in the experimental process is ensured through the action of the ball.

[0017] 3. Safety guarantee: the vertical plate, the fixed rod and the rotating rod can isolate the hydraulic and pneumatic transmission display areas to some extent, and the use safety is improved. DETAILED DESCRIPTION

[0018] The disclosure of the utility model will be explained with reference to the drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the protection scope of the utility model. In the drawings, the same reference signs are used to refer to the same parts. Among them:

[0019] Fig. 1 It is a structural schematic view of the hydraulic and pneumatic transmission teaching experiment bench of the utility model;

[0020] Fig. 2 It is an adjusting groove opening structure schematic view of the hydraulic and pneumatic transmission teaching experiment bench of the utility model;

[0021] Fig. 3 It is a side sectional view of the hydraulic and pneumatic transmission teaching experiment bench of the utility model.

[0022] The figure is marked as follows: 1, test bench; 2, vertical plate; 3, fixed rod; 4, rotating rod; 5, fastening knob; 6, adjusting groove; 7, sleeve; 8, operation screen. Detailed Implementation

[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0024] Example

[0025] like Figs. 1-3 As shown, the hydraulic and pneumatic transmission teaching experimental platform includes experimental platform 1;

[0026] In this hydraulic and pneumatic transmission teaching experimental platform, angle adjustment is mainly achieved by the cooperation of the rotating rod 4 and the fixed rod 3. The fixed rod 3 in the middle of the inner side of the vertical plate 2 provides the rotation axis for the rotating rod 4. The adjustment groove 6 opened on the vertical plate 2 is coaxially set with the fixed rod 3, and the depth of the adjustment groove 6 is greater than the diameter of the end of the rotating rod 4 and less than the diameter of the rotating rod 4 located inside the vertical plate 2. This ensures that the rotating rod 4 can rotate flexibly around the fixed rod 3 and prevents it from detaching from the vertical plate 2 during rotation.

[0027] When the angle needs to be adjusted, the user first loosens the fastening knobs 5 at both ends of the rotating rod 4. The fastening knobs 5 are threaded rods that engage with the threaded holes at corresponding positions on the rotating rod 4. After loosening, the rotating rod 4 can rotate freely around the fixed rod 3 within the range of 0°-90°. The user rotates the rotating rod 4 to the appropriate angle according to the experimental requirements, and then tightens the fastening knobs 5 again. As the threaded rod gradually screws into the threaded hole, the rotating rod 4 is firmly fixed to the vertical plate 2, thus ensuring that the angle will not change during the experiment and providing a stable support structure for the experiment.

[0028] Position adjustment working principle

[0029] Position adjustment is achieved via sleeves 7 on the fixed rod 3 and the rotating rod 4. Sleeves 7 are laterally slidably connected to the fixed rod 3 and the rotating rod 4, with a gap of 0.2mm-2mm at the connection point. Ball bearings embedded in the inner surface of sleeve 7 contact the surfaces of the fixed rod 3 and the rotating rod 4. This design significantly reduces friction during sliding, allowing sleeve 7 to easily slide and rotate laterally on the fixed rod 3 and the rotating rod 4.

[0030] When the user needs to adjust the position of the operating screen 8 or other experimental components installed on the sleeve 7, the sleeve 7 can be slid along the fixed rod 3 or the rotating rod 4 to the desired position by gently pushing the sleeve 7. Due to the effect of the ball, even if there is slight touch of the operating screen 8 and other components during the experiment, the sleeve 7 will not be easily displaced, ensuring the stability of the component position during the experiment and meeting the demand for flexible adjustment of the component position in different experimental scenarios.

[0031] Test bench 1: The top end of the test bench 1 is provided with an inclined operating surface, the middle part is a horizontal operating surface, and the bottom end is a bottom box. The inclined operating surface is convenient to operate, the horizontal operating surface is used to place experimental instruments, and the bottom box is used to accommodate the pump station and high-pressure air bottle.

[0032] Vertical plate 2 and fixed rod 3: One end of the horizontal operating surface of the test bench 1 is fixed with a pair of vertical plates 2, and the middle part of the inner side of the vertical plate 2 is provided with a fixed rod 3, which provides support for other components.

[0033] The setting of the vertical plate 2, the fixed rod 3 and the rotating rod 4 can isolate the hydraulic and pneumatic transmission display area to some extent, improving the safety in use.

[0034] Rotating rod 4 and adjusting groove 6: The top of the vertical plate 2 is provided with a rotating rod 4 rotating around the axis of the fixed rod 3, and the vertical plate 2 is provided with an adjusting groove 6 for the rotation of the rotating rod 4. The adjusting groove 6 is coaxial with the fixed rod 3, and the adjusting angle of the rotating rod 4 around the fixed rod 3 is 0°-90°, which is convenient for the user to adjust the angle according to the experimental demand.

[0035] Sleeve 7 and operating screen 8: The fixed rod 3 and the rotating rod 4 are both transversely and slidably connected with the sleeve 7, and the connection between the sleeve 7 and the fixed rod 3 and the rotating rod 4 leaves a gap of 0.2mm-2mm. The inner surface of the sleeve 7 is embedded with a ball, which is in contact with the surface of the fixed rod 3 and the rotating rod 4, making the sliding smoother. One side of the sleeve 7 is installed with an operating screen 8 for displaying experimental data and parameter setting.

[0036] Fastening knob 5: The two ends of the rotating rod 4 are fastened by the fastening knob 5. The fastening knob 5 adopts a threaded rod, and the rotating rod 4 is provided with a threaded hole corresponding to the position of the threaded rod, which ensures that the rotating rod 4 can be stably fixed after adjusting the angle.

[0037] Internal components: The bottom box of the test bench 1 is installed with a pump station and a high-pressure air bottle to provide power source for the experiment. The inclined operating surface is installed with a hydraulic transmission unit and a pneumatic transmission unit, which is the core part of the experimental operation.

[0038] Power supply principle

[0039] The bottom box of the experimental table is provided with a pump station and a high-pressure air bottle, which are the power sources of the hydraulic and pneumatic systems respectively. The pump station drives an oil pump by a motor to pump hydraulic oil from an oil tank and pressurize it to become a liquid with high pressure, thereby providing power for the hydraulic transmission unit. The high-pressure air bottle stores compressed air in advance, and when the experiment is started, the compressed air in the bottle is delivered to the pneumatic transmission unit through pipelines as pneumatic power output.

[0040] Hydraulic transmission working principle

[0041] When the high-pressure hydraulic oil output by the pump station enters the hydraulic transmission unit in the inclined operation surface, the pressure is transmitted in the closed pipeline system according to Pascal's law. The hydraulic oil pushes the piston in the hydraulic cylinder to convert hydraulic energy into mechanical energy, realizes linear reciprocating motion, and drives the execution component connected with the piston, such as a simulated mechanical arm, a workbench, etc. to work. At the same time, by adjusting the parameters on the operation screen 8, the flow and pressure of the hydraulic oil can be controlled, and the movement speed and output force of the execution component can be adjusted.

[0042] Pneumatic transmission working principle

[0043] The compressed air output by the high-pressure air bottle enters the pneumatic transmission unit, is processed by pressure regulation, filtration, etc., pushes the piston in the air cylinder to move, converts the pressure energy of the gas into mechanical energy, and makes the air cylinder drive the external execution mechanism to complete linear motion or rotary motion. In this process, the operator can set relevant parameters on the operation screen 8, control various pneumatic control valves such as direction control valves, flow control valves, etc. to adjust the flow direction and flow of compressed air, thereby accurately controlling the movement direction, speed and output force of the air cylinder

[0044] The technical scope of the utility model is not limited to the content in the above description, and those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical thought of the utility model, and these deformations and modifications should all belong to the protection scope of the utility model.

Claims

1. A hydraulic and pneumatic transmission teaching experimental platform, characterized in that: It includes a test bench (1); the test bench (1) is provided with an inclined operating surface, a horizontal operating surface and a bottom box at its top, middle and bottom ends, respectively; The test bench (1) has a pair of vertical plates (2) fixed at one end of the horizontal operating surface near the inclined operating surface. A fixed rod (3) is provided in the middle of the inner side of the vertical plate (2). A rotating rod (4) is provided at the top of the vertical plate (2) and rotates around the axis of the fixed rod (3). An adjustment groove (6) is provided on the vertical plate (2) for the rotating rod (4) to rotate. The adjustment groove (6) is coaxial with the fixed rod (3). The adjustment angle of the rotating rod (4) around the fixed rod (3) is 0°-90°. A sleeve (7) is slidably connected to both the fixed rod (3) and the rotating rod (4). The sleeve (7) can rotate circumferentially on the fixed rod (3) and the rotating rod (4). An operation screen (8) is installed on one side of the sleeve (7).

2. The hydraulic and pneumatic transmission teaching experimental platform according to claim 1, characterized in that: The two ends of the rotating rod (4) are fastened by fastening knobs (5). The fastening knobs (5) are threaded rods, and the rotating rod (4) has threaded holes at the positions corresponding to the threaded rods.

3. The hydraulic and pneumatic transmission teaching experimental platform according to claim 2, characterized in that: The inner surface of the sleeve (7) is embedded with balls, which are in contact with the surfaces of the fixed rod (3) and the rotating rod (4).

4. The hydraulic and pneumatic transmission teaching experimental platform according to claim 3, characterized in that: The sleeve (7) has gaps between its contact surfaces with the fixed rod (3) and the rotating rod (4), and the gaps between the sleeve (7) and the fixed rod (3) and the rotating rod (4) are all 0.2mm-2mm.

5. The hydraulic and pneumatic transmission teaching experimental platform according to claim 4, characterized in that: The depth of the adjustment groove (6) is greater than the diameter of the end of the rotating rod (4), and the depth of the adjustment groove (6) is less than the diameter of the rotating rod (4) inside the vertical plate (2).

6. The hydraulic and pneumatic transmission teaching experimental platform according to claim 5, characterized in that: The test bench (1) has a pump station and a high-pressure air cylinder installed in its base box, and a hydraulic transmission unit and a pneumatic transmission unit installed in the inclined operating surface of the test bench (1).

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