Electromagnetic starting test equipment for water meter counter

Abstract

The utility model relates to the technical field of testing equipment, in particular to water meter counter electromagnetic starting testing equipment which comprises a testing rack, a testing carrying table fixedly connected to the testing rack, a moving table which is connected to the testing rack in a sliding mode in the vertical direction and located below the testing carrying table, and a driving mechanism for driving the moving table to slide. The upper end face of the test platform deck is provided with a positioning groove for positioning and placing the counter, a detection hole is formed in the inner wall of the bottom of the positioning groove in a penetrating mode, an impeller rotating shaft of the counter is fixedly sleeved with a magnetic ring, the magnetic ring is coaxially arranged in the detection hole, and the moving platform is provided with a stator coil used for generating a rotating magnetic field to drive the magnetic ring to rotate. The test platform deck is provided with a detection assembly for detecting the number of rotation turns of the magnetic ring. The method and the device have the effect of improving the test efficiency of the counter.

Description

Technical Field

[0001] The present application relates to the technical field of testing equipment, and in particular to an electromagnetic starting testing equipment for a water meter counter. Background Art

[0002] The water meter counter is an important part of the water meter, which is used to record and display the amount of water used by the user, and provide a basis for the fee settlement between the water supply company and the user. Traditional water meters usually use mechanical counters, which record water consumption through the mechanical transmission of gears and counters. The counter is connected to the impeller gear in the water meter. The water flow drives the impeller to rotate, and the impeller gear drives the counter to count.

[0003] The counter needs to be started up after production. Generally, the accuracy of the counter is fed back by driving the counter to reach the minimum water flow at a certain speed. The smaller the water flow is to reach the speed required by the counter, the more sensitive the counter is, reflecting that the counting accuracy of the counter is higher.

[0004] The existing water meter counter starting test uses water flow to drive the impeller on the counter to rotate, and the driving force is adjusted by adjusting the flow rate of the test water flow to test the starting performance of different counters. However, the traditional testing method requires the construction of a sealed circulating water flow channel, and the test operation is relatively cumbersome, so further improvement is needed. Utility Model Content

[0005] In order to improve the testing efficiency of the counter, the present application provides an electromagnetic starting test device for a water meter counter.

[0006] The electromagnetic starting test equipment for water meter counter provided in this application adopts the following technical solution:

[0007] A water meter counter electromagnetic starting test device comprises a test frame, a test platform fixedly connected to the test frame, a mobile platform vertically slidably connected to the test frame and located below the test platform, and a driving mechanism for driving the mobile platform to slide, wherein the upper end surface of the test platform has a positioning groove for positioning the counter, the bottom inner wall of the positioning groove is penetrated by a detection hole, the impeller shaft fixing sleeve of the counter is provided with a magnetic ring, and the magnetic ring is coaxially built into the detection hole, the mobile platform is provided with a stator coil for generating a rotating magnetic field to drive the magnetic ring to rotate, and the test platform is provided with a detection component for detecting the number of rotations of the magnetic ring.

[0008] By adopting the above technical solution and debugging the equipment, first use the counter that has passed the starting test (standard counter with qualified accuracy) to determine the distance between the stator coil and the magnetic ring, that is, the minimum magnetic force, corresponding to the minimum driving water flow of the traditional starting test, and record the detection distance of each specification of the standard counter;

[0009] During the test, the counter to be tested is placed in the positioning groove of the test carrier, and the magnetic ring on the impeller shaft is built into the detection hole. The driving mechanism drives the mobile platform to move to the standard position of the corresponding specification. After the stator coil is connected to three-phase alternating current, the stator coil generates a rotating magnetic field. At this time, the magnetic ring of the counter is subjected to the minimum starting magnetic force (corresponding to the minimum starting water flow). If the magnetic ring of the counter can reach the specified speed, it means that the accuracy of the counter meets the standard, otherwise it does not meet the standard. The testing process is simple and fast, which improves the testing efficiency of the counter. In addition, the device can drive the mobile platform to rise and fall through the driving mechanism, thereby adjusting the height of the stator coil, changing the distance between the stator coil and the magnetic ring, and adjusting the tightness of the magnetic coupling, so as to change the magnetic force on the magnetic ring and achieve equivalent regulation of the flow rate of the water flow.

[0010] Preferably, the detection component includes a circuit board arranged on the test platform for collecting data, a Hall sensor electrically connected to the circuit board and located below the detection hole for detecting the number of rotations of the magnetic ring, and a display electrically connected to the circuit board for displaying data on the number of rotations of the magnetic ring.

[0011] By adopting the above technical solution, a Hall sensor is arranged under the magnetic ring of the counter on the circuit board. When the stator coil is energized, a rotating magnetic field is generated. The magnetic ring of the counter rotates under the action of the magnetic field force. The Hall sensor collects the S-pole-N-pole pulses of the magnetic ring and transmits them to the circuit board, and finally feeds back the number of rotations of the magnetic ring through the display.

[0012] Preferably, the test rack includes a test base plate and a test vertical plate fixedly connected to the upper end surface of the test base plate, the test vertical plate is fixedly connected to a pair of support vertical plates distributed at intervals, the test platform is installed and fixed to the support vertical plates, and the mobile platform is connected to the test vertical plate along a vertical sliding manner.

[0013] Preferably, the test platform includes a detection seat detachably connected to the test frame and a tooling seat detachably connected to the upper end surface of the detection seat, the positioning groove is opened on the upper end surface of the tooling seat, the upper end surface of the detection seat is penetrated by a through hole connected to the detection hole, and the circuit board is arranged on the lower end surface of the detection seat.

[0014] By adopting the above technical solution, the test platform includes a detection seat and a tooling seat, and the tooling seat is detachably connected to the detection seat, which is convenient for replacing the tooling seat with corresponding positioning grooves according to counters of different specifications, thereby meeting the testing requirements for counters of different specifications and increasing the testing range of the equipment.

[0015] Preferably, the circuit board is detachably connected to the lower end surface of the detection seat.

[0016] By adopting the above technical solution, the circuit board can be detachably connected to the detection socket, so that a damaged circuit board or Hall sensor can be easily replaced.

[0017] Preferably, a positioning hole is provided on the upper end surface of the detection seat, and a positioning column is protrudingly provided on the lower end surface of the tooling seat and is inserted into the positioning hole.

[0018] By adopting the above technical solution, when the tooling seat is assembled on the detection seat, the positioning column on the tooling seat is inserted into the positioning hole on the detection seat to realize the positioning of the tooling seat and the detection seat, so that the through hole and the detection hole are in a coaxial position.

[0019] Preferably, the test frame is vertically slidably connected to a sliding block, the movable platform is fixedly connected to the sliding block, and the driving mechanism includes a screw rod rotatably connected to the test frame and threadedly penetrated through the sliding block, and a servo motor driving the screw rod to rotate.

[0020] By adopting the above technical solution, the servo motor drives the screw rod to rotate, and the sliding block slides along the axial direction of the screw rod under the restriction of the thread of the screw rod, thereby realizing the lifting and lowering of the moving platform.

[0021] In summary, the utility model has the following beneficial effects:

[0022] 1. During the test, the counter to be tested is placed in the positioning groove of the test platform, and the magnetic ring on the impeller shaft is built into the detection hole. The driving mechanism drives the mobile platform to move to the standard position of the corresponding specification. After the stator coil is connected to the three-phase alternating current, the stator coil generates a rotating magnetic field. At this time, the magnetic ring of the counter is subjected to the minimum starting magnetic force (corresponding to the minimum starting water flow). If the impeller shaft of the counter can reach the specified speed, it means that the accuracy of the counter meets the standard, otherwise it does not meet the standard. The test process is simple and fast, which improves the test efficiency of the counter;

[0023] 2. A Hall sensor is installed under the counter magnetic ring on the circuit board. When the stator coil is energized, a rotating magnetic field is generated. The counter magnetic ring rotates under the force of the magnetic field. The Hall sensor collects the S-pole-N-pole pulses of the magnetic ring and transmits them to the circuit board. Finally, the number of rotations of the magnetic ring is fed back through the display.

[0024] 3. The test platform includes a detection seat and a tooling seat, and the tooling seat can be detachably connected to the detection seat, which is convenient for replacing the tooling seat with corresponding positioning grooves according to counters of different specifications, meeting the testing requirements for counters of different specifications and increasing the testing range of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an electromagnetic starting test device for a water meter counter;

[0026] Figure 2 is the front view of the test rack;

[0027] Figure 3 It is a schematic diagram of the structure of the test platform;

[0028] Figure 4 It is a schematic diagram of the structure of the counter;

[0029] Figure 5 It is a schematic diagram of the structure of the stator coil.

[0030] In the figure, 1. test frame; 11. test bottom plate; 12. test vertical plate; 13. test top plate; 14. support vertical plate; 15. guide rod; 16. sliding block; 2. test carrier; 21. detection seat; 211. sink groove; 212. through hole; 213. installation sleeve; 214. positioning hole; 22. tooling seat; 221. positioning groove; 222. detection hole; 223. positioning column; 3. moving platform; 4. driving mechanism; 41. screw rod; 42. servo motor; 5. stator coil; 51. stator housing; 52. three-phase coil module; 6. detection component; 61. circuit board; 62. Hall sensor; 63. display; 10. magnetic ring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-5 This application is described in further detail.

[0032] The present application embodiment discloses a water meter counter electromagnetic starting test device, referring to Figure 1 , Figure 2 , including a test frame 1, a test platform 2 fixedly connected to the test frame 1, a moving platform 3 vertically slidably connected to the test frame 1 and located below the test platform 2, and a driving mechanism 4 for driving the moving platform 3 to slide.

[0033] The test frame 1 includes a test bottom plate 11, a test vertical plate 12 fixedly connected to the upper end surface of the test bottom plate 11, and a test top plate 13 fixedly connected to the upper part of the test vertical plate 12. A pair of support vertical plates 14 located below the fixed top plate and distributed at intervals are fixedly connected to the outer side wall of the test vertical plate 12, and the test carrier 2 is arranged above the support vertical plates 14. A guide rod 15 is fixedly connected between the test top plate 13 and the test bottom plate 11, and the guide rod 15 is vertically arranged and located between the support vertical plates 14. The guide rod 15 is provided with a sliding block 16 located below the test carrier 2 along a vertical sliding sleeve, and the moving platform 3 is fixedly connected to the sliding block 16.

[0034] The driving mechanism 4 includes a screw rod 41 rotatably connected to the test frame 1 and threaded through the sliding block 16, and a servo motor 42 driving the screw rod 41 to rotate. The axial direction of the screw rod 41 is parallel to the axial direction of the guide rod 15. The servo motor 42 is fixedly connected to the test top plate 13, and the output shaft of the servo motor 42 is coaxially fixedly connected to the screw rod 41.

[0035] Reference Figure 3 , Figure 4 The test platform 2 includes a detection seat 21 abutting between the upper end surfaces of the two support vertical plates 14 and a tooling seat 22 detachably connected to the upper end surface of the detection seat 21, and the detection seat 21 is fixedly connected to the support vertical plate 14 by bolts. The upper end surface of the tooling seat 22 is provided with a positioning groove 221 for positioning the counter, and the bottom inner wall of the positioning groove 221 is penetrated with a detection hole 222. The impeller shaft fixing sleeve of the counter is provided with a magnetic ring 10, and the magnetic ring 10 is coaxially built into the detection hole 222.

[0036] The upper end surface of the detection seat 21 is provided with a sink 211, and the bottom inner wall of the sink 211 is penetrated with a through hole 212 connected to the detection hole 222. The upper end surface of the detection seat 21 is provided with a positioning hole 214, and a plurality of positioning holes 214 are provided. The lower end surface of the tooling seat 22 is protrudingly provided with a positioning column 223 inserted in the positioning hole 214. The upper end surface of the detection seat 21 is fixedly penetrated with a mounting sleeve 213, the upper end surface of the mounting sleeve 213 is flush with the upper end surface of the detection seat 21, and the lower end surface of the mounting sleeve 213 protrudes from the lower end surface of the detection seat 21. The inner hole of the mounting sleeve 213 is a threaded hole, and the tooling seat 22 is fixedly connected to the detection seat 21 by mounting bolts, and the mounting bolts are threadedly connected to the threaded holes of the mounting sleeve 213.

[0037] Reference Figure 5 The moving platform 3 is provided with a stator coil 5 for generating a rotating magnetic field to drive the magnetic ring 10 to rotate. The stator coil 5 includes a stator shell 51 fixedly connected to the upper end surface of the moving platform 3 by bolts and a three-phase coil module 52 fixedly connected to the inner cavity of the positioning shell.

[0038] Reference Figure 1 , Figure 3 The test platform 2 is provided with a detection component 6 for detecting the number of rotations of the magnetic ring 10. The detection component 6 includes a circuit board 61 fixedly connected to the lower end surface of the detection seat 21 by screws for collecting data, a Hall sensor 62 electrically connected to the circuit board 61 for detecting the number of rotations of the magnetic ring 10, and a display 63 located on one side of the test frame 1 and electrically connected to the circuit board 61 for displaying the number of rotations of the magnetic ring 10. The Hall sensor 62 is built into the through hole 212.

[0039] The implementation principle of the electromagnetic starting test equipment for a water meter counter in an embodiment of the present application is as follows: equipment debugging, first using a counter that has passed the starting test (a standard counter with qualified accuracy) to determine the distance between the stator coil 5 and the magnetic ring 10, that is, the minimum magnetic force, corresponding to the minimum driving water flow of the traditional starting test, and recording the detection distance of each specification of the standard counter (that is, the distance between the stator coil 5 and the magnetic ring 10).

[0040] During the test, after the counter to be tested is placed in the positioning groove 221 on the tooling seat 22, the magnetic ring 10 on the impeller shaft is built into the detection hole 222, and the lead screw 41 is driven to rotate by the servo motor 42, thereby driving the movable platform 3 to move to the position corresponding to the standard specification. After the three-phase coil module 52 is supplied with three-phase alternating current, a rotating magnetic field is generated to drive the magnetic ring 10 to rotate. The Hall sensor 62 collects the S-pole-N-pole pulses of the magnetic ring 10 and transmits them to the circuit board 61, and finally the number of rotations of the magnetic ring 10 is fed back through the display 63. If the magnetic ring 10 of the counter can reach the specified rotation speed, it means that the accuracy of the counter meets the standard, otherwise it does not meet the standard. The testing process is simple and fast, which improves the testing efficiency of the counter.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water meter counter electromagnetic starting test device, characterized in that: The invention comprises a test frame (1), a test platform (2) fixedly connected to the test frame (1), a moving platform (3) connected to the test frame (1) in a vertical sliding direction and located below the test platform (2), and a driving mechanism (4) for driving the moving platform (3) to slide, wherein the upper end surface of the test platform (2) has a positioning groove (221) for positioning a counter, and a detection hole (222) is formed through the bottom inner wall of the positioning groove (221), a magnetic ring (10) is provided on the impeller shaft fixing sleeve of the counter, and the magnetic ring (10) is coaxially built into the detection hole (222), the moving platform (3) is provided with a stator coil (5) for generating a rotating magnetic field to drive the magnetic ring (10) to rotate, and the test platform (2) is provided with a detection component (6) for detecting the number of rotations of the magnetic ring (10).

2. The electromagnetic starting test equipment for water meter counter according to claim 1 is characterized in that: The detection component (6) comprises a circuit board (61) disposed on the test platform (2) for collecting data, a Hall sensor (62) electrically connected to the circuit board (61) and located below the detection hole (222) for detecting the number of rotations of the magnetic ring (10), and a display (63) electrically connected to the circuit board (61) for displaying data on the number of rotations of the magnetic ring (10).

3. The electromagnetic starting test equipment for water meter counter according to claim 1 is characterized in that: The test rack (1) comprises a test base plate (11) and a test vertical plate (12) fixedly connected to the upper end surface of the test base plate (11); the test vertical plate (12) is fixedly connected to a pair of support vertical plates (14) distributed at intervals; the test carrier (2) is mounted and fixed to the support vertical plates (14); and the mobile platform (3) is connected to the test vertical plate (12) in a vertical sliding manner.

4. The electromagnetic starting test equipment for water meter counter according to claim 2 is characterized in that: The test platform (2) comprises a detection seat (21) detachably connected to the test frame (1) and a tooling seat (22) detachably connected to the upper end surface of the detection seat (21); the positioning groove (221) is provided on the upper end surface of the tooling seat (22); a through hole (212) connected to the detection hole (222) is provided through the upper end surface of the detection seat (21); and the circuit board (61) is arranged on the lower end surface of the detection seat (21).

5. The electromagnetic starting test equipment for water meter counter according to claim 4 is characterized in that: The circuit board (61) is detachably connected to the lower end surface of the detection seat (21).

6. The electromagnetic starting test equipment for water meter counter according to claim 4, characterized in that: The upper end surface of the detection seat (21) is provided with a positioning hole (214), and the lower end surface of the tooling seat (22) is protrudingly provided with a positioning column (223) inserted into the positioning hole (214).

7. The electromagnetic starting test equipment for water meter counter according to claim 1 is characterized in that: The test frame (1) is vertically slidably connected to a sliding block (16), the moving platform (3) is fixedly connected to the sliding block (16), and the driving mechanism (4) comprises a screw rod (41) rotatably connected to the test frame (1) and threadedly penetrated through the sliding block (16), and a servo motor (42) driving the screw rod (41) to rotate.

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