Static load test device for electric energy metering box

Abstract

The utility model provides a static load test device for an electric energy metering box, which comprises a base, a first guide rail is arranged in the middle of the surface of the base, and a product fixing tool platform is slidably arranged on the first guide rail; the two sets of second guide rails are arranged at the two ends of the base, a moving tool is arranged on each set of second guide rails in a sliding mode, a third guide rail is arranged on each moving tool, and a first force application tool is arranged on each third guide rail in a sliding mode in the vertical direction; the top beam is arranged on the top face of the base, and a second force application tool corresponding to the product fixing tool platform is arranged on the bottom face of the middle of the top beam. The product fixing tool platform comprises a supporting plate, a sliding block is arranged on the bottom face of the supporting plate, and the sliding block is in sliding connection with the first guide rail. The mounting plate is rotationally arranged on the surface of the supporting plate, and a clamping tool for clamping the metering box is arranged on the surface of the mounting plate; according to the utility model, the two groups of first force application tools are provided, the two ends of the metering box can be tested at the same time, and the testing efficiency is high.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of electric energy meter box test devices, in particular to an electric energy meter box static load test device. Background Art

[0002] The electric energy meter box is an auxiliary device used for electric energy metering and monitoring, usually composed of electric energy meter, current transformer, voltage transformer, switch circuit breaker, transformer, etc. It can accurately measure the power, voltage, current and other parameters of the power grid, and provide users with reliable electric energy data and operating status information. In order to ensure that the meter box can withstand the environmental impact during use, it needs to be tested and inspected before leaving the factory.

[0003] The static load test is designed to evaluate and verify the relevant mechanical and physical strength of the meter box. The meter box needs to test its shell stiffness, side wall static load and torque resistance. During the test, the deformation of the meter box as a whole or locally over time is observed to determine the corresponding shell stiffness and side wall endurance test. For example, patent No. CN201820905728.2 discloses a static load capacity test device, which is used to perform a static load capacity test on the meter box. The static load capacity test device includes: a base, a first guide rail, a first support plate, a second guide rail, a test platform, a control cabinet, a second support plate, a fourth guide rail, a force application device and a clamp. The test platform is movable along the X-axis and is arranged on the second guide rail, and the metering box is fixed on the test platform; the control cabinet is vertically fixed on the other end of the top of the base, and the third guide rail is vertically fixed on the side of the control cabinet facing the first guide rail; the force-applying device is movable along the Y-axis and is arranged on the fourth guide rail, and a retractable push head is fixed on the force-applying device; the fixture is used to perform a static load capacity test on the metering box.

[0004] The above technical solution has the following deficiencies during implementation:

[0005] During the test, only one side of the meter box can be tested, and the test efficiency needs to be improved. At the same time, due to different test methods, the test devices are also different. The method for measuring the rigidity of the meter box shell proposed by the utility model is: a load of 60N is applied to each side wall of the shell in succession for 5 minutes. In the test, the center of this load should be 20mm away from the edge of the side wall of the test object, and should act on a circular surface with a diameter of 10mm; the method for measuring the static load of the meter box side wall is to apply a steady-state load on each side of the meter box shell. force (select SL5, stiffness test force is 500N), lasting 1min; Determine the shell tolerance (torsion resistance): use a horizontally rotatable frame made of 60mm×60mm×5mm angle iron, the vertical part of the frame arm is 100mm, the tested complete set of equipment should be firmly fixed on its base, and the frame is fastened on it, so that the two ends of the frame arm are in contact with the top and arm of the complete set of equipment, the door of the meter box should be closed, and withstand 2×1000N torque for 30s. During the test, the door remains closed. On this basis, and in order to meet market requirements, a static load test device for electric energy meter boxes is proposed. Utility Model Content

[0006] 1. Technical problems to be solved by the utility model:

[0007] The utility model provides a static load test device for an electric energy metering box, which is used to solve the technical problems existing in the above-mentioned background technology.

[0008] 2. Technical solution:

[0009] In order to achieve the above purpose, the technical solution of the utility model is:

[0010] A static load test device for an electric energy meter box, comprising:

[0011] A base, wherein a guide rail 1 is provided in the middle of the surface thereof, and a product fixing tooling platform is slidably provided on the guide rail 1;

[0012] Two sets of guide rails 2 are respectively arranged at both ends of the base and are arranged parallel to the guide rail 1. A movable tool is slidably provided on each set of guide rails 2. The movable tool is provided with a guide rail 3. The guide rail 3 is slidably provided with a force applying tool 1 for testing the rigidity of the housing of the metering box and the static load of the side wall.

[0013] The top beam is arranged on the top surface of the base and is located above the two sets of mobile tooling. The bottom surface of the middle part of the top beam is provided with a force-applying tooling 2 for testing the torque resistance of the metering box, which is arranged corresponding to the fixed tooling platform of the product;

[0014] Wherein, the product fixing tooling platform comprises a support plate, the bottom surface of which is provided with a slider, and the slider is slidably connected with a guide rail;

[0015] The mounting plate is rotatably arranged on the surface of the supporting plate, and the surface of the mounting plate is provided with a clamping tool for clamping the metering box;

[0016] The output ends of the force applying tooling 1 and the force applying tooling 2 can be detachably provided with contact rods;

[0017] The control cabinet is electrically connected to the force applying tooling 1 and the force applying tooling 2, and can push the movable tooling to slide on the guide rail 2 and push the force applying tooling 1 to slide on the guide rail 3.

[0018] A further improvement is that the force-applying tooling 1 includes a connecting plate slidably arranged on a guide rail 3, a hydraulic device 1 is arranged on the connecting plate, a pressure sensor 1 is arranged at the telescopic end of the hydraulic device 1, and a contact rod is detachably arranged at the end of the pressure sensor 1.

[0019] A further improvement is that the force-applying tooling No. 2 comprises a connecting plate No. 2 arranged on the bottom surface of the top beam, a hydraulic device No. 2 is arranged on the bottom surface of the connecting plate No. 2, a pressure sensor No. 2 is arranged at the telescopic end of the hydraulic device No. 2, and a contact rod is detachably arranged at the end of the pressure sensor No. 2.

[0020] A further improvement is that the clamping tooling includes an L-shaped movable plate and a fixed plate arranged on the surface of the mounting plate, a slide groove is provided in the mounting plate, a screw is provided in the slide groove, the screw has an L-shaped movable plate for upper limit movement, and a handle is provided at the starting end of the screw.

[0021] A further improvement is that it also includes a rotating component arranged in the support plate, the rotating component includes a rotating motor arranged at the bottom end of the inner wall of the support plate, the output end of the rotating motor is provided with a gear, the gear on the gear is engaged with an incomplete gear, the incomplete gear is provided with a connecting shaft, and the connecting shaft is transmission-connected to the mounting plate.

[0022] A further improvement is that the diameter of the contact rod is 10 mm.

[0023] A further improvement is that it also includes a plurality of groups of bolt support legs which are arranged on the bottom surface of the base and are threadedly connected to the base.

[0024] A further improvement is that it also includes a servo motor 1 for driving the movable tooling to slide on the guide rail 2.

[0025] A further improvement is that it also includes a servo motor 2 for driving a force-applying tool 1 to slide on a guide rail 3.

[0026] A further improvement is that it also includes an emergency stop protection system.

[0027] 3. Beneficial effects:

[0028] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0029] The two sets of force-applying fixtures provided by the utility model can test both ends of the metering box at the same time, and the testing efficiency is high. At the same time, the product fixed fixture platform is provided with a clamping fixture and a rotating assembly, which is convenient for installing metering boxes of different sizes and facilitating later testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the utility model;

[0031] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0032] Figure 3 For this utility model Figure 1 The enlarged structural diagram of the middle B part;

[0033] Figure 4 This is a schematic diagram of the internal structure of the fixed tooling platform of the utility model product.

[0034] Reference numerals:

[0035] 1-base; 2-guide rail one; 3-product fixing tooling platform; 31-support plate; 32-slider; 33-mounting plate; 34-clamping tooling; 341-L-shaped moving plate; 342-fixed plate; 343-screw; 344-handle; 35-rotating assembly; 351-rotating motor; 352-gear; 353-incomplete gear; 4-guide rail two; 5-moving tooling; 6-guide rail three; 7-force tooling one; 71-connecting plate; 72-hydraulic device one; 73-pressure sensor one; 8-top beam; 9-force tooling two; 91-connecting plate two; 92-hydraulic device; 93-pressure sensor two; 10-contact rod; 11-servo motor one; 12-servo motor two. DETAILED DESCRIPTION

[0036] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] It should be noted that the structures not introduced in the present invention do not involve the design points and improvement directions of the present invention, and all adopt the existing technology. At the same time, the content of the above background technology belongs to the technical cognition scope of the utility model inventor. Since the technical content in this field is vast and too complicated, the above content of this application does not necessarily constitute the prior art.

[0039] Reference Figure 1-4 This embodiment provides a static load test device for an electric energy meter box, comprising:

[0040] A base 1, a guide rail 2 is provided in the middle of its surface, and a product fixing tooling platform 3 is slidably provided on the guide rail 2;

[0041] Two sets of guide rails 2 4 are respectively arranged at both ends of the base 1 and are arranged parallel to the guide rail 1 2. A movable tool 5 is slidably provided on each set of guide rails 2 4. The movable tool 5 is provided with a guide rail 3 6. The guide rail 3 6 is slidably provided with a force applying tool 1 7 for testing the rigidity of the metering box shell and the static load of the side wall.

[0042] A top beam 8 is arranged on the top surface of the base 1 and is located above the two sets of movable tooling 5. A force applying tooling 9 for testing the torque resistance of the metering box is arranged on the bottom surface of the middle part of the top beam 8 in correspondence with the product fixed tooling platform 3;

[0043] The product fixing tooling platform 3 includes a support plate 31, a bottom surface of which is provided with a slider 32, and the slider 32 is slidably connected with the guide rail 2;

[0044] The mounting plate 33 is rotatably arranged on the surface of the support plate 31, and the surface of the mounting plate 33 is provided with a clamping fixture 34 for clamping the metering box;

[0045] The output ends of the force applying tooling 1 7 and the force applying tooling 2 9 can be detachably provided with a contact rod 10, wherein the contact rod 9 is arranged according to the test requirements;

[0046] The control cabinet is electrically connected to the force applying tooling 1 7 and the force applying tooling 2 9 , and can push the movable tooling 5 to slide on the guide rail 2 4 and push the force applying tooling 1 7 to slide on the guide rail 3 6 .

[0047] The two sets of force applying tools 7 provided in this embodiment can test both ends of the metering box at the same time, and the test efficiency is high.

[0048] Wherein, the control cabinet includes a cabinet body, which is arranged at one end close to the base;

[0049] A PLC control system, which is built into the cabinet;

[0050] A touch screen is arranged on the outer side of the cabinet, and the touch screen is used for human-computer interaction and a control module is built into the cabinet. The setting of the control cabinet is a conventional technical means in the art and will not be elaborated here.

[0051] In a preferred embodiment, the force-applying tool 7 includes a connecting plate 71 slidably disposed on the guide rail 3 6, a hydraulic device 72 is disposed on the connecting plate 71, a pressure sensor 73 is disposed at the telescopic end of the hydraulic device 72, and a contact rod 10 is detachably disposed at the end of the pressure sensor 73.

[0052] A contact rod 10 is provided at the end of the pressure sensor 73 to facilitate the quick contact of the contact rod 10 against the metering box. Considering that the test method requires that the force applied should act on a circular surface of the metering box with a diameter of 10 mm, the diameter of the contact rod 10 is preferably set to 10 mm. There is no requirement for the length of the contact rod 10, which can be set according to specific test needs.

[0053] In a preferred embodiment, the force-applying tooling 9 includes a connecting plate 91 arranged on the bottom surface of the top beam 8, a hydraulic device 92 is provided on the bottom surface of the connecting plate 91, a pressure sensor 93 is provided at the telescopic end of the hydraulic device 92, and a contact rod 10 is detachably provided at the end of the pressure sensor 93.

[0054] The hydraulic device 1 72 and the hydraulic device 2 92 are both controlled to extend and retract by corresponding servo controllers, such as Figure 2-3 shown.

[0055] In a preferred embodiment, the clamping tool 34 includes an L-shaped movable plate 341 and a fixed plate 342 arranged on the surface of the mounting plate 33, a slide groove is provided in the mounting plate 32, a screw 343 is provided in the slide groove, the screw 343 has an L-shaped movable plate 341 for threaded movement, and a handle 344 is provided at the starting end of the screw 343.

[0056] The L-shaped movable plate 341 is moved toward the fixed plate 342 by the handle 344 to achieve rapid clamping and installation of metering boxes of different sizes.

[0057] The metering box can be rotated by rotating the bearing. However, considering the convenience of rotating the metering box, the present embodiment also includes a rotating assembly 35 arranged in the support plate 31. The rotating assembly 35 includes a rotating motor 351 arranged at the bottom end of the inner wall of the support plate 31. The output end of the rotating motor 351 is provided with a gear 352. The gear 352 is engaged with an incomplete gear 353. The incomplete gear 353 is provided with a connecting shaft. The top surface of the connecting shaft is connected to the mounting plate 33. The incomplete gear 353 is preferably arranged to be a quarter structure of the gear 352, that is, the incomplete gear 353 rotates a quarter of a circle when the gear 352 rotates one circle, thereby facilitating the rotation adjustment of the four sides of the metering box.

[0058] This embodiment further includes a plurality of sets of bolt legs disposed on the bottom surface of the base 1 and threadedly connected to the base 1 , so as to facilitate adjustment of the height of the base 1 .

[0059] This embodiment also includes a servo motor 11 for driving the movable tooling 5 to slide on the guide rail 2 4 and a servo motor 2 12 for driving the force-applying tooling 7 to slide on the guide rail 3 6, wherein the servo motor 1 11 and the servo motor 2 12 preferably adopt a screw structure to drive the corresponding movable tooling 4 and the force-applying tooling 7 to move.

[0060] This embodiment also includes an emergency stop protection system, which can be used to pause the vehicle in case of emergency.

[0061] The operation process is as follows:

[0062] The metering box is placed on the mounting plate 33. At this time, the handle 344 is used to rotate the screw rod 343 forward so that the L-shaped moving plate 341 clamps the metering box. After the clamping is completed, the moving support plate 31 slides to a suitable position on the guide rail 2. At this time, the servo motor 11 is driven to make the moving tooling 5 slide on the guide rail 4 to the corresponding position of the metering box. The servo motor 12 is driven to drive the force-applying tooling 7 to slide on the guide rail 6 to the corresponding height of the metering box. At this time, under the action of the hydraulic device 72, the contact rod 10 at the front end of the pressure sensor 73 is driven to abut against the metering box, and the pressure sensor 73 is started to pressurize the metering box. According to the different applied pressures, the display of the touch screen is observed, that is, the test results of the shell stiffness and the static load of the side wall of the metering box are observed;

[0063] Since the two sets of force-applying fixtures 7 work simultaneously, the rotating motor 351 rotates, the rotating motor 351 drives the gear 352 to rotate, the gear 352 drives the incomplete gear 353 to rotate, the gear 352 rotates one circle, the incomplete gear 353 rotates a quarter circle, that is, the metering box rotates 90 degrees, and the other two sides of the metering box are tested according to the above scheme;

[0064] After the test is completed, the handle 344 is turned backwards to loosen the metering box by the L-shaped movable plate 341, and a pre-set 60mm×60mm×5mm angle iron sleeve is set on the outside of the metering box. The handle 344 is then turned forwards to clamp the metering box, and the contact rod 10 at the front end of the pressure sensor 2 93 is driven to abut against the top surface of the metering box under the action of the hydraulic device 2 92. The pressure sensor 2 93 is started to apply pressure to the metering box, and the display on the touch screen is observed, that is, the torque resistance test result of the tested metering box is observed.

[0065] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A static load test device for an electric energy meter box, characterized in that: The test device includes A base (1) is provided with a guide rail (2) in the middle of its surface, and a product fixing tooling platform (3) is slidably provided on the guide rail (2); Two sets of guide rails 2 (4) are respectively arranged at two ends of the base (1) and are arranged parallel to the guide rail 1 (2); each set of guide rails 2 (4) is slidably provided with a movable tooling (5); the movable tooling (5) is provided with a guide rail 3 (6); the guide rail 3 (6) is slidably provided with a force applying tooling (7) for testing the rigidity of the outer shell of the metering box and the static load of the side wall; A top beam (8) is arranged on the top surface of the base (1), and a force applying tool (9) for testing the torque resistance of the metering box is arranged corresponding to the product fixing tool platform (3) on the bottom surface of the middle part of the top beam (8); The product fixing tooling platform (3) comprises a support plate (31), the bottom surface of which is provided with a slider (32), and the slider (32) is slidably connected to the guide rail 1 (2); The mounting plate (33) is rotatably mounted on the surface of the support plate (31), and a clamping fixture (34) is provided on the surface of the mounting plate (33), and the output ends of the force applying fixture 1 (7) and the force applying fixture 2 (9) are both detachably provided with a contact rod (10); The control cabinet is electrically connected to the force applying tooling 1 (7) and the force applying tooling 2 (9), and is capable of pushing the movable tooling (5) to slide on the guide rail 2 (4) and pushing the force applying tooling 1 (7) to slide on the guide rail 3 (6).

2. The static load test device for an electric energy meter box according to claim 1, characterized in that: The force applying tooling (7) comprises a connecting plate (71) slidably arranged on a guide rail (6), a hydraulic device (72) on the connecting plate (71), a pressure sensor (73) being arranged at a telescopic end of the hydraulic device (72), and a contact rod (10) being detachably arranged at a terminal end of the pressure sensor (73).

3. The static load test device for an electric energy meter box according to claim 1, characterized in that: The force applying tooling (9) comprises a connecting plate (91) arranged on the bottom surface of the top beam (8), a hydraulic device (92) is arranged on the bottom surface of the connecting plate (91), a pressure sensor (93) is arranged at the telescopic end of the hydraulic device (92), and a contact rod (10) is detachably arranged at the end of the pressure sensor (93).

4. The static load test device for an electric energy meter box according to claim 1, characterized in that: The clamping fixture (34) comprises an L-shaped movable plate (341) and a fixed plate (342) arranged on the surface of the mounting plate (33); a slide groove is arranged in the mounting plate (33); a screw rod (343) is arranged in the slide groove; a threaded portion on the screw rod (343) is provided with the L-shaped movable plate (341) for limited movement; and a handle (344) is arranged at the starting end of the screw rod (343).

5. The static load test device for an electric energy meter box according to claim 1, characterized in that: The invention also comprises a rotating assembly (35) arranged in the support plate (31), the rotating assembly (35) comprising a rotating motor (351) arranged at the bottom end of the inner wall of the support plate (31), a gear (352) being provided at the output end of the rotating motor (351), an incomplete gear (353) being engaged with the gear on the gear (352), a connecting shaft being provided on the incomplete gear (353), and the connecting shaft being drivingly connected to the mounting plate (33).

6. The static load test device for an electric energy meter box according to claim 1, characterized in that: The diameter of the contact rod (10) is 10 mm.

7. The static load test device for an electric energy meter box according to claim 1, characterized in that: It also includes a plurality of sets of bolt support feet which are arranged on the bottom surface of the base (1) and are threadedly connected to the base (1).

8. The static load test device for an electric energy meter box according to claim 1, characterized in that: It also includes a servo motor 1 (11) for driving the movable tooling (5) to slide on the guide rail 2 (4).

9. The static load test device for an electric energy meter box according to claim 1, characterized in that: It also includes a servo motor 2 (12) for driving the force-applying tool 1 (7) to slide on the guide rail 3 (6).

10. The static load test device for an electric energy meter box according to claim 1, characterized in that: Also includes emergency stop protection system.

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