Test device for precision valve linear motor
By designing a test device including positioning strips, clamping strips, brackets and hydraulic pipes, the problem of difficulty in intuitively distinguishing the speed and accuracy differences in linear motor comparison test of precision valves is solved, and higher test accuracy and intuitiveness are achieved.
Patent Information
- Application Number
- CN202421202273.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-05-30
AI Technical Summary
In the prior art, when conducting comparison tests for linear motors of precision valves, it is difficult to intuitively distinguish the difference in motion speed and accuracy, and errors are prone to observation readings.
A test device including positioning strips, clamping strips, brackets and hydraulic pipes was designed to ensure the stability of the position of the linear motor through the clamping effect of the positioning strips and clamping strips; the design of the brackets and observation parts intuitively display the difference in speed and accuracy through the coordination of the pointer and the scale; the combination of hydraulic pipes and contrast pipes, accurately compare the accuracy of the motor through the scale reading of the liquid.
This device reduces the difficulty of discrimination due to similar movement speeds, reduces the possibility of inaccurate readings, improves the intuitiveness and accuracy of comparison tests, and significantly reduces the generation of errors.
Smart Images
Figure CN222719679U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valve linear motor comparison, in particular to a testing device for precision valve linear motors. Background Art
[0002] The main reason for testing precision valve linear motors is to ensure that they are stable, accurate, safe and reliable. The reason for comparative testing of precision valve linear motors is to ensure that the performance and accuracy of the motors are competitive with other similar products.
[0003] At present, the comparison effect is not intuitive. When the two motors move, the speed difference is not large, and it is difficult to directly distinguish the speed. When comparing the accuracy of the movement distance, it is more difficult to distinguish directly, and errors are prone to occur in the observed readings. For this reason, a test device for precision valve linear motors is proposed. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a testing device for a precision valve linear motor.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A testing device for a precision valve linear motor comprises a workbench, a positioning bar is provided on one side of the workbench, a rotating rod is connected to the positioning bar, a shell is installed at one end of the rotating rod, a clamping bar is movably connected inside the shell, a linear motor body is provided on the outside of the clamping bar, a bracket is installed on the workbench, an observation piece is movably connected inside the bracket, a fixed block is provided at one end of the bracket, a hydraulic pipe is installed on the outside of the fixed block, a pressure rod is movably connected inside the hydraulic pipe, and a comparison tube is provided on one side of the hydraulic pipe.
[0007] Preferably, the shell is fixedly mounted on one side of the workbench, one end of the rotating rod is rotatably connected to the outer surface of the shell, limit rods are installed at both ends of the positioning bar, the limit rods are slidably connected in the workbench, the rotating rod and the positioning bar are threadedly connected, a pressure block is fixed on one side of the positioning bar, and the pressure block is connected to the outside of the linear motor body.
[0008] Preferably, a gear is rotatably connected inside the outer shell, a rotating shaft is fixedly installed on the top surface of the gear, a frame plate is provided on the outer side of the rotating shaft, and the frame plate is fixedly installed on the top surface of the outer shell. Two clamping bars are provided, which are respectively located on both sides of the gear, and the inner ends of the gear and the clamping bar are meshed with each other, and the outer end of the clamping bar is connected to the linear motor body.
[0009] Preferably, the bracket is fixedly mounted on the top surface of the workbench, and a slide groove is provided on the inner wall of the bracket. The observation piece includes a balance plate, a pointer, a limit bar and a ring. A fixed shaft is welded and installed between the balance plate and the pointer, the limit bar is rotatably connected to the outside of the fixed shaft, the limit bar is slidably connected in the slide groove, both ends of the balance plate are movably connected to rings, the rings are sleeved on the linear motor body, a scale is provided on the top surface of the bracket, and the pointer is movably connected to the top surface of the bracket.
[0010] Preferably, fixed blocks are symmetrically installed on both sides of the bracket, and the fixed blocks are connected to hydraulic pipes. The hydraulic pipes contain pressurized oil, and a pressure rod is movably connected in the hydraulic pipe. One end of the pressure rod is connected to the hydraulic pipe with a piston, and the other end is located on the outside of the fixed block.
[0011] Preferably, a guide block is fixed on the workbench, two comparison tubes are symmetrically installed and both are located on one side of the guide block, a piston block is movably connected inside the comparison tube, the hydraulic pipe, the guide block and the comparison tube are connected by a pipeline, and scale bars are also arranged between the comparison tubes.
[0012] The beneficial effects of the utility model are:
[0013] This solution can clamp and position the linear motor body through positioning bars and clamping bars to prevent position deviation during the test. The bracket facilitates the stable movement of the observation part. The angle of the pointer can directly show which side has a faster speed. The liquid can be squeezed into the comparison tube through the squeezing of the pressure rod, and the liquid scale can be used to identify which linear motor body has a higher accuracy.
[0014] This solution reduces the possibility of difficulty in distinguishing linear motors due to similar movement speeds, reduces the possibility of inaccurate readings after precise movement of linear motors, makes the entire comparison device more intuitive, has a better display effect, and also improves the effect of more accurate readings of the device, avoiding the possibility of generating a large number of errors. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a structural schematic diagram of the installation of the test device for the precision valve linear motor proposed by the utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the test device of the precision valve linear motor proposed by the utility model after disassembly;
[0017] Figure 3 for Figure 1 A schematic diagram of a partial top view structure;
[0018] Figure 4 for Figure 3Schematic diagram of the structure of part A;
[0019] Figure 5 It is a structural diagram of the observation part.
[0020] In the figure: 1. workbench; 2. linear motor body; 3. positioning bar; 4. rotating rod; 5. bracket; 6. pressure rod; 7. fixing block; 8. hydraulic pipe; 9. comparison tube; 10. scale bar; 11. guide block; 12. clamping bar; 13. observation piece; 131. pointer; 132. limit bar; 133. collar; 14. piston block; 15. gear; 16. housing. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0022] Example: Refer to Figure 1-5 , a testing device for a precision valve linear motor comprises a workbench 1, a positioning strip 3 is arranged on one side of the workbench 1, a rotating rod 4 is connected to the positioning strip 3, a shell 16 is installed at one end of the rotating rod 4, the shell 16 is fixedly installed on one side of the workbench 1, one end of the rotating rod 4 is rotatably connected to the outer surface of the shell 16, limit rods are arranged at both ends of the positioning strip 3, the limit rods are slidably connected in the workbench 1 to facilitate stability during movement, the rotating rod 4 and the positioning strip 3 are threadedly connected to act on the movement of the position of the positioning strip 3, a pressure block is fixed on one side of the positioning strip 3, the pressure block is connected to the outer side of the linear motor body 2 to realize the synchronous horizontal clamping movement of the linear motor bodies 2 on both sides, a clamping strip 12 is connected in the shell 16, and a linear motor body 2 is arranged on the outer side of the clamping strip 12, a bracket 5 is installed on the workbench 1, the bracket 5 is fixedly installed on the top surface of the workbench 1, and the inner part of the bracket 5 The slide groove on the wall, the observation piece 13 includes a balance plate, a pointer 131, a limit bar 132 and a ring 133. A fixed shaft is welded and installed between the balance plate and the pointer 131 to realize the synchronous rotation of the two. The limit bar 132 is rotatably connected to the outside of the fixed shaft. The limit bar 132 is slidably connected in the slide groove to enable the observation piece 13 to slide stably. Both ends of the balance plate are movably connected with the ring 133 to facilitate the adjustment of the angle of the ring 133. The ring 133 is sleeved on the output end of the linear motor body 2. A horizontal scale is provided on the top surface of the bracket 5. The pointer 131 is movably connected to the top surface of the bracket 5 to facilitate the tilting state during movement. The observation piece 13 is movably connected in the bracket 5. A fixed block 7 is provided at one end of the bracket 5. A hydraulic pipe 8 is installed on the outside of the fixed block 7. A pressure rod 6 is movably connected in the hydraulic pipe 8, and a comparison pipe 9 is provided on one side of the hydraulic pipe 8.
[0023] In this embodiment, a gear 15 is rotatably connected in the housing 16, and a rotating shaft is fixedly installed on the top surface of the gear 15 for manual rotation. A frame plate is arranged on the outside of the rotating shaft, and the frame plate is fixedly installed on the top surface of the housing 16 to support the position of the rotating shaft. Two clamping bars 12 are arranged, which are respectively located on both sides of the gear 15 to realize synchronous movement. The inner ends of the gear 15 and the clamping bars 12 are meshed with each other, and the outer ends of the clamping bars 12 are connected to the linear motor body 2 to clamp the linear motor body 2 in the synchronous vertical direction. Fixed blocks 7 are symmetrically installed on both sides of the bracket 5, and hydraulic pipes 8 are connected to the fixed blocks 7. The hydraulic pipes 8 contain pressurized oil. A pressure rod 6 is movably connected inside the hydraulic tube 8 to squeeze out the internal pressure oil. One end of the pressure rod 6 is connected to the hydraulic tube 8 by a piston, and the other end is located on the outside of the fixed block 7 for convenient connection with the linear motor body 2. A guide block 11 is also fixed on the workbench 1. Two comparison tubes 9 are symmetrically installed, both located on one side of the guide block 11 for convenient comparison. A piston block 14 is movably connected inside the comparison tube 9, and the piston block 14 can be moved by pressure oil. The other side of the piston block 14 is pressurized nitrogen. The hydraulic tube 8, the guide block 11 and the comparison tube 9 are connected by a pipeline to facilitate the flow of pressure oil. A scale bar 10 is also provided between the comparison tubes 9 for convenient accurate reading according to the liquid level.
[0024] Working principle: Place two linear motor bodies 2 on the workbench 1, first hold the rotating shaft and rotate it. Driven by the rotating shaft, the gear 15 will drive the clamping bar 12 to move to both sides, thereby clamping the linear motor body 2. Then rotate the rotating rod 4, and the positioning bar 3 will also clamp the linear motor body 2.
[0025] After completing the positioning, the collars 133 on both sides are connected to the linear motor body 2, and the zero calibration is first performed. Then, the two linear motor bodies 2 are controlled to start at the same time. The linear motor body 2 will push the observation piece 13 forward. During the pushing process, the limit bar 132 will move stably in the slide groove. When the speed of the linear motor body 2 on one side is fast, the pointer 131 on this side will tilt forward and deviate from the position of the scale, and the pointer 131 on the other side will tilt backward, thereby directly judging the speed of the two linear motor bodies 2.
[0026] When the linear motor body 2 needs to be precisely positioned, the linear motor body 2 is controlled to move to the specified position. At this time, the linear motor body 2 will push the pressure rod 6, and the pressure rod 6 will push the pressure oil in the hydraulic pipe 8 into the comparison pipe 9. At this time, the hydraulic pressure on one side of the piston block 14 will become larger and the gas will be compressed. According to the liquid level value and the correct vertical comparison, it can be seen which device has higher precision.
[0027] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.
[0028] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.
[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. Test device for precision valve linear motor, characterized in that: include: A workbench (1), wherein a positioning bar (3) is provided on one side of the workbench (1), a rotating rod (4) is connected to the positioning bar (3), a housing (16) is installed at one end of the rotating rod (4), a clamping bar (12) is movably connected inside the housing (16), a linear motor body (2) is provided on the outer side of the clamping bar (12), a bracket (5) is installed on the workbench (1), an observation piece (13) is movably connected inside the bracket (5), a fixed block (7) is provided at one end of the bracket (5), a hydraulic pipe (8) is installed on the outer side of the fixed block (7), a pressure rod (6) is movably connected inside the hydraulic pipe (8), and a comparison pipe (9) is provided on one side of the hydraulic pipe (8).
2. The testing device for precision valve linear motor according to claim 1, characterized in that: The housing (16) is fixedly mounted on one side of the workbench (1); one end of the rotating rod (4) is rotatably connected to the outer surface of the housing (16); limiting rods are installed at both ends of the positioning bar (3); the limiting rods are slidably connected in the workbench (1); the rotating rod (4) and the positioning bar (3) are threadedly connected; a pressure block is fixed on one side of the positioning bar (3); and the pressure block is connected to the outer side of the linear motor body (2).
3. The testing device for precision valve linear motor according to claim 1, characterized in that: A gear (15) is rotatably connected inside the outer shell (16), a rotating shaft is fixedly installed on the top surface of the gear (15), a frame plate is arranged on the outer side of the rotating shaft, and the frame plate is fixedly installed on the top surface of the outer shell (16), two clamping bars (12) are arranged, which are respectively located on both sides of the gear (15), the inner ends of the gear (15) and the clamping bar (12) are meshed with each other, and the outer end of the clamping bar (12) is connected to the linear motor body (2).
4. The testing device for precision valve linear motor according to claim 1, characterized in that: The bracket (5) is fixedly installed on the top surface of the workbench (1), and a sliding groove is provided on the inner wall of the bracket (5). The observation piece (13) includes a balance plate, a pointer (131), a limit bar (132) and a ring (133). A fixed shaft is welded and installed between the balance plate and the pointer (131). The limit bar (132) is rotatably connected to the outer side of the fixed shaft. The limit bar (132) is slidably connected in the sliding groove. Both ends of the balance plate are movably connected to the ring (133), and the ring (133) is sleeved on the linear motor body (2). A scale is set on the top surface of the bracket (5), and the pointer (131) is movably connected to the top surface of the bracket (5).
5. The testing device for precision valve linear motor according to claim 1, characterized in that: Fixed blocks (7) are symmetrically mounted on both sides of the bracket (5), and the fixed blocks (7) are connected to hydraulic pipes (8), the hydraulic pipes (8) contain pressurized oil, and a pressure rod (6) is movably connected to the hydraulic pipe (8), one end of the pressure rod (6) is connected to the hydraulic pipe (8) by a piston, and the other end is located outside the fixed block (7).
6. The testing device for precision valve linear motor according to claim 1, characterized in that: A guide block (11) is also fixed on the workbench (1), two comparison tubes (9) are symmetrically installed and are both located on one side of the guide block (11), a piston block (14) is movably connected inside the comparison tube (9), the hydraulic tube (8), the guide block (11) and the comparison tube (9) are connected by a pipeline, and a scale bar (10) is also arranged between the comparison tubes (9).