A current transformer installation auxiliary device

Abstract

This invention provides an auxiliary device for installing current transformers, belonging to the field of current transformer installation technology. It includes a lifting platform, a base plate, a first drive assembly, a support rod, a second drive assembly, and a third drive assembly. The base plate has several casters at its bottom. The lifting platform is positioned above the base plate. The first drive assembly is mounted on the upper part of the base plate and is used to move the lifting platform up and down. One end of the support rod is connected to the upper part of the lifting platform, and the other end extends to the outside of the lifting platform to provide support for the current transformer. The second drive assembly is mounted on the upper part of the lifting platform. Compared with existing technologies, this invention provides auxiliary support for the current transformer when installing it inside a switchgear, ensuring the current transformer is accurately positioned within the switchgear, thereby improving the convenience and efficiency of current transformer installation.

Description

Technical Field

[0001] The invention belongs to the technical field of current transformer installation, in particular to a current transformer installation auxiliary device. Background Art

[0002] A current transformer is an instrument that converts a large primary current into a small secondary current for measurement based on the principle of electromagnetic induction. The current transformer consists of a closed iron core and a winding. The primary winding has very few turns and is connected in series in the circuit of the current to be measured.

[0003] At present, most current transformers are installed inside switch cabinets. The specific installation requires two groups of personnel to cooperate with each other. One group of personnel lifts the current transformer so that the threaded holes on the side of the current transformer are aligned with the threaded holes at the installation position inside the switch cabinet. The other group of personnel passes the bolts through the aligned threaded holes and then uses nuts to lock and fix them. This installation method is relatively traditional. Since the current transformer itself is heavy, a lot of physical strength is required when manually lifting the current transformer. At the same time, the alignment of the threaded holes must be taken into account, resulting in low installation efficiency of the current transformer. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a current transformer installation auxiliary device.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A current transformer installation auxiliary device includes a lifting platform, a base plate, a first drive assembly, a support rod, a second drive assembly and a third drive assembly.

[0007] A plurality of casters are arranged at the bottom of the base plate, and the lifting platform is arranged above the base plate.

[0008] The first driving assembly is installed on the upper part of the bottom plate, and is used to drive the lifting platform to move up and down.

[0009] One end of the support rod is connected to the upper part of the lifting platform, and the other end extends to the outside of the lifting platform, so as to provide support for the current transformer.

[0010] The second driving assembly is installed on the upper part of the lifting platform and is used to drive the support rod to slide longitudinally along the lifting platform.

[0011] The third driving assembly is arranged on the rod body of the support rod located outside the lifting platform, and is used to drive the current transformer to move along the length direction of the support rod.

[0012] As a further improvement of the present invention: the upper edge of the bottom plate is connected to the lifting platform through a plurality of telescopic guide rods.

[0013] The first driving assembly includes a hydraulic rod and a diagonal support plate,

[0014] The bottom end of the diagonal support plate is hingedly connected to the upper part of the base plate, the upper end of the diagonal support plate is slidably connected to the bottom of the lifting platform, one end of the hydraulic rod is hingedly connected to the upper part of the base plate, and the other end is hingedly connected to the diagonal support plate.

[0015] As a further improvement of the present invention: the outer wall of the support rod is provided with a keyway along the length direction, and a slide seat is slidably provided on the upper part of the lifting platform.

[0016] The upper part of the lifting platform is located on one side of the slide seat and is also fixedly provided with a rack. One end of the support rod passes through the slide seat and is fixedly connected with a gear. The support rod is rotatably matched with the slide seat, and the gear is meshed with the rack.

[0017] The second driving assembly includes a first sleeve and a first hand wheel,

[0018] The first sleeve is sleeved on the outside of the support rod, a sliding key is fixedly provided on the inner wall of the first sleeve, the sliding key extends into the key slot and can slide along the length direction of the key slot, and the first hand wheel is fixedly provided at one end of the first sleeve.

[0019] As a further improvement of the present invention: a longitudinally distributed guide rail is fixedly provided on the upper portion of the lifting platform, and the sliding seat is slidably matched with the guide rail.

[0020] As a further improvement of the present invention: the third driving assembly includes a second sleeve and a second hand wheel,

[0021] The second sleeve is sleeved on the outside of the support rod and is threadably matched with the support rod, and the second hand wheel is fixedly mounted on one end of the second sleeve.

[0022] As a further improvement of the present invention: a support plate is fixedly provided on the upper part of the lifting platform, a plurality of first limiting teeth distributed at intervals are fixedly provided on one side of the support plate, a rotating wheel is fixedly provided on the end of the first sleeve away from the first hand wheel, and a plurality of second limiting teeth distributed at intervals in a ring shape are fixedly provided on one side of the rotating wheel.

[0023] As a further improvement of the present invention: a handle is fixedly provided on the side wall of the bottom plate.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] In the embodiment of the present invention, when installing the current transformer into the switch cabinet, the end of the support rod located on the outside of the lifting platform can be extended into the current transformer, and then the first driving component drives the lifting platform to move upward, thereby driving the support rod to move upward. When the support rod moves upward, the current transformer is lifted off the ground, and then the bottom plate is pushed. The bottom plate drives the lifting platform to move to the front of the switch cabinet, and the support rod drives the current transformer to extend into the switch cabinet. When the current transformer enters the switch cabinet and is approximately located at the installation position, the staff can use the second driving component to drive the support rod to slide longitudinally along the upper part of the lifting platform. When the support rod slides longitudinally, it drives the current transformer along the switch. The cabinet moves longitudinally, and the third driving assembly is used to drive the current transformer to move along the length direction of the support rod. In this way, the current transformer can be conveniently adjusted in the longitudinal and transverse directions at the installation position, so that the bolt holes on the side of the current transformer are aligned with the bolt holes at the installation position. After the hole alignment is completed, the staff can use the bolt assembly to install the current transformer. Compared with the prior art, when the current transformer is installed inside the switch cabinet, auxiliary support of the current transformer can be achieved, so that the current transformer is accurately located at the installation position in the switch cabinet, thereby improving the convenience of current transformer installation and improving installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a current transformer installation auxiliary device Figure 1 ;

[0027] Figure 2 A schematic diagram of the structure of a current transformer installation auxiliary device Figure 2 ;

[0028] Figure 3 for Figure 1 A magnified schematic diagram of the middle A area;

[0029] Figure 4 for Figure 1 A magnified schematic diagram of the middle B area;

[0030] In the figure: 10-lifting platform, 101-rack, 102-guide rail, 103-slide, 104-support plate, 105-first limiting tooth, 20-bottom plate, 201-telescopic guide rod, 202-handle, 203-castor, 30-first drive assembly, 301-hydraulic rod, 302-slant support plate, 40-support rod, 401-gear, 402-keyway, 50-second drive assembly, 501-first sleeve, 502-first hand wheel, 503-rotating wheel, 504-second limiting tooth, 505-sliding key, 60-third drive assembly, 601-second sleeve, 602-second hand wheel. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] See also Figure 1 as well as Figure 2 The present embodiment provides a current transformer installation auxiliary device, including a lifting platform 10, a base plate 20, a first drive assembly 30, a support rod 40, a second drive assembly 50 and a third drive assembly 60. A plurality of casters 203 are arranged at the bottom of the base plate 20. The lifting platform 10 is arranged above the base plate 20. The first drive assembly 30 is installed on the upper part of the base plate 20 to drive the lifting platform 10 to move up and down. One end of the support rod 40 is connected to the upper part of the lifting platform 10, and the other end extends to the outside of the lifting platform 10 to provide support for the current transformer. The second drive assembly 50 is installed on the upper part of the lifting platform 10 to drive the support rod 40 to slide longitudinally along the lifting platform 10. The third drive assembly 60 is arranged on the rod body of the support rod 40 located outside the lifting platform 10 to drive the current transformer to move along the length direction of the support rod 40.

[0034] When installing the current transformer into the switch cabinet, the end of the support rod 40 located outside the lifting platform 10 can be extended into the current transformer, and then the first drive assembly 30 drives the lifting platform 10 to move upward, thereby driving the support rod 40 to move upward. When the support rod 40 moves upward, the current transformer is lifted off the ground, and then the bottom plate 20 is pushed. The bottom plate 20 drives the lifting platform 10 to move to the front of the switch cabinet, and the support rod 40 drives the current transformer to extend into the switch cabinet. When the current transformer enters the switch cabinet and is approximately located at the installation position, the staff The second driving assembly 50 can be used to drive the support rod 40 to slide longitudinally along the upper part of the lifting platform 10. When the support rod 40 slides longitudinally, it drives the current transformer to move longitudinally inside the switch cabinet. At the same time, the third driving assembly 60 is used to drive the current transformer to move along the length direction of the support rod 40. In this way, the current transformer can be conveniently adjusted in both the vertical and horizontal directions at the installation position, so that the bolt holes on the side of the current transformer are aligned with the bolt holes at the installation position. After the hole positions are aligned, the staff can use the bolt assembly to install the current transformer.

[0035] See also Figure 1In one embodiment, the upper edge of the base plate 20 is connected to the lifting platform 10 through a plurality of telescopic guide rods 201. The first driving assembly 30 includes a hydraulic rod 301 and a diagonal support plate 302. The bottom end of the diagonal support plate 302 is hingedly connected to the upper part of the base plate 20. The upper end of the diagonal support plate 302 is slidably connected to the bottom of the lifting platform 10. One end of the hydraulic rod 301 is hingedly connected to the upper part of the base plate 20, and the other end is hingedly connected to the diagonal support plate 302.

[0036] When one end of the support rod 40 located on the outside of the lifting platform 10 extends into the current transformer, the hydraulic rod 301 extends, thereby pushing the diagonal support plate 302 to rotate and erect. During the rotation and erection process, the diagonal support plate 302 pushes the lifting platform 10 to move upward. At the same time, a number of telescopic guide rods 201 extend synchronously to provide guidance for the upward movement of the lifting platform 10, so that the lifting platform 10 moves upward smoothly. When the lifting platform 10 moves upward, it drives the support rod 40 to move upward, and the support rod 40 lifts the current transformer off the ground.

[0037] See also Figure 1 , Figure 2 as well as Figure 4 In one embodiment, a key groove 402 is provided on the outer wall of the support rod 40 along the length direction, a slide seat 103 is slidably provided on the upper part of the lifting platform 10, and a rack 101 is fixedly provided on the upper part of the lifting platform 10 on one side of the slide seat 103, one end of the support rod 40 passes through the slide seat 103 and is fixedly connected with a gear 401, the support rod 40 and the slide seat 103 are rotatably matched, and the gear 401 is meshed with the rack 101, and the second driving assembly 50 includes a first sleeve 501 and a first hand wheel 502, the first sleeve 501 is sleeved on the outside of the support rod 40, and a sliding key 505 is fixedly provided on the inner wall of the first sleeve 501, the sliding key 505 extends to the inside of the key groove 402 and can slide along the length direction of the key groove 402, and the first hand wheel 502 is fixedly provided at one end of the first sleeve 502.

[0038] When the support rod 40 drives the current transformer into the interior of the switch cabinet and is approximately located at the installation position, the staff can turn the first hand wheel 502, and the first hand wheel 502 drives the first sleeve 501 to rotate, and through the cooperation between the sliding key 505 and the keyway 402, the support rod 40 is driven to rotate relative to the slide 103. When the support rod 40 rotates, it drives the gear 401 to rotate. By utilizing the meshing action between the gear 401 and the rack 101, when the support rod 40 rotates, it can drive the slide 103 to slide longitudinally compared to the lifting platform 10. The support rod 40 drives the current transformer to move longitudinally, thereby realizing fine adjustment of the longitudinal position of the current transformer, so that the bolt holes on the side of the current transformer are longitudinally aligned with the bolt holes at the installation position.

[0039] See also Figure 1 In one embodiment, a longitudinally distributed guide rail 102 is fixedly provided on the upper portion of the lifting platform 10 , and the slide seat 103 is slidably matched with the guide rail 102 .

[0040] See also Figure 3 In one embodiment, the third driving assembly 60 includes a second sleeve 601 and a second hand wheel 602. The second sleeve 601 is sleeved on the outside of the support rod 40 and threadedly engaged with the support rod 40. The second hand wheel 602 is fixedly mounted on one end of the second sleeve 601.

[0041] After the end of the support rod 401 located on the outside of the lifting platform 10 extends into the interior of the current transformer, as the lifting platform 10 and the support rod 40 move upward, the second sleeve 601 acts on the inner top wall of the current transformer, thereby lifting the current transformer off the ground. When the bolt holes on the side of the current transformer are longitudinally aligned with the bolt holes on the installation position, the staff can rotate the second hand wheel 602 to drive the second sleeve 601 to rotate. When the second sleeve 601 rotates, it can move in the length direction of the support rod 40 through the threaded cooperation with the support rod 40. When the second sleeve 601 moves, it can drive the current transformer to move synchronously along the length direction of the support rod 40, thereby realizing fine adjustment of the lateral position of the current transformer, so that the bolt holes on the side of the current transformer are transversely aligned with the bolt holes on the installation position.

[0042] See also Figure 2 as well as Figure 4 In one embodiment, a support plate 104 is fixedly provided on the upper part of the lifting platform 10, and a plurality of first limiting teeth 105 distributed at intervals are fixedly provided on one side of the support plate 104. A rotating wheel 503 is fixedly provided on the end of the first sleeve 501 away from the first hand wheel 502, and a plurality of second limiting teeth 504 distributed at intervals in a ring shape are fixedly provided on one side of the rotating wheel 503.

[0043] When the bolt holes on the side of the current transformer are longitudinally aligned with the bolt holes on the installation position, when the staff turns the first hand wheel 602 to perform transverse adjustment on the current transformer, since the support rod 40 is in a rotatable and longitudinally movable state at this time, it is difficult for the first sleeve 601 to perform transverse adjustment on the current transformer by threaded cooperation with the support rod 40. Therefore, by setting the first limiting tooth 105 and the second limiting tooth 504, before performing transverse adjustment on the current transformer, the staff can push the first sleeve 501 to make the first sleeve 501 slide along the length direction of the support rod 40, and the sliding key 505 adaptively slides inside the key slot 402. When the first sleeve 501 slides, it drives the rotating wheel 503 toward the support plate 104. When the second hand wheel 602 is rotated, the second sleeve 601 can be smoothly rotated relative to the support rod 40, and then move along the length direction of the support rod 40 through the threaded cooperation with the support rod 40, so as to realize the smooth adjustment of the lateral position of the current transformer.

[0044] See also Figure 1 as well as Figure 2 In one embodiment, a handle 202 is fixedly provided on the side wall of the bottom plate 20 .

[0045] By the cooperation of the handle 202 and the caster 203, the base plate 20 can be conveniently pushed, and then the current transformer can be conveniently moved into the switch cabinet.

[0046] In the embodiment of the present invention, when installing the current transformer into the switch cabinet, the end of the support rod 40 located on the outside of the lifting platform 10 can be extended into the current transformer, and then the first driving component 30 drives the lifting platform 10 to move upward, thereby driving the support rod 40 to move upward. When the support rod 40 moves upward, the current transformer is lifted off the ground, and then the bottom plate 20 is pushed. The bottom plate 20 drives the lifting platform 10 to move to the front of the switch cabinet, and the support rod 40 drives the current transformer to extend into the switch cabinet. When the current transformer enters the switch cabinet and is approximately located at the installation position, the staff can use the second driving component 50 to drive the support rod 40 to slide longitudinally along the upper part of the lifting platform 10. The support rod 40 slides longitudinally When the current transformer is in motion, it drives the current transformer to move longitudinally inside the switch cabinet. At the same time, the third driving component 60 is used to drive the current transformer to move along the length direction of the support rod 40. In this way, the current transformer can be conveniently adjusted in the vertical and horizontal directions at the installation position, so that the bolt holes on the side of the current transformer are aligned with the bolt holes at the installation position. After the hole positions are aligned, the staff can use the bolt assembly to install the current transformer. Compared with the prior art, when the current transformer is installed inside the switch cabinet, auxiliary support of the current transformer can be achieved, so that the current transformer is accurately located at the installation position in the switch cabinet, thereby improving the convenience of current transformer installation and improving installation efficiency.

[0047] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A current transformer installation auxiliary device, characterized in that: It includes a lifting platform, a bottom plate, a first driving assembly, a support rod, a second driving assembly and a third driving assembly. A plurality of casters are arranged at the bottom of the base plate, and the lifting platform is arranged above the base plate. The first driving assembly is installed on the upper part of the bottom plate, and is used to drive the lifting platform to move up and down. One end of the support rod is connected to the upper part of the lifting platform, and the other end extends to the outside of the lifting platform, so as to provide support for the current transformer. The second driving assembly is installed on the upper part of the lifting platform and is used to drive the support rod to slide longitudinally along the lifting platform. The third driving assembly is arranged on the rod body of the support rod located outside the lifting platform, and is used to drive the current transformer to move along the length direction of the support rod. The outer wall of the support rod is provided with a key slot along the length direction, and a sliding seat is slidably arranged on the upper part of the lifting platform. The upper part of the lifting platform is located on one side of the slide seat and is also fixedly provided with a rack. One end of the support rod passes through the slide seat and is fixedly connected with a gear. The support rod is rotatably matched with the slide seat, and the gear is meshed with the rack. The second driving assembly includes a first sleeve and a first hand wheel, The first sleeve is sleeved on the outside of the support rod, a sliding key is fixedly arranged on the inner wall of the first sleeve, the sliding key extends into the key slot and can slide along the length direction of the key slot, and the first hand wheel is fixedly arranged at one end of the first sleeve. A support plate is also fixedly provided on the upper part of the lifting platform, a plurality of first limiting teeth distributed at intervals are fixedly provided on one side of the support plate, a rotating wheel is fixedly provided on the end of the first sleeve away from the first hand wheel, a plurality of second limiting teeth distributed at intervals in a ring shape are fixedly provided on one side of the rotating wheel.

2. A current transformer installation auxiliary device according to claim 1, characterized in that: The upper edge of the bottom plate is connected to the lifting platform through a plurality of telescopic guide rods. The first driving assembly includes a hydraulic rod and a diagonal support plate, The bottom end of the diagonal support plate is hingedly connected to the upper part of the base plate, the upper end of the diagonal support plate is slidably connected to the bottom of the lifting platform, one end of the hydraulic rod is hingedly connected to the upper part of the base plate, and the other end is hingedly connected to the diagonal support plate.

3. A current transformer installation auxiliary device according to claim 1, characterized in that: A longitudinally distributed guide rail is fixedly arranged on the upper portion of the lifting platform, and the slide seat is slidably matched with the guide rail.

4. A current transformer installation auxiliary device according to claim 1, characterized in that: The third driving assembly includes a second sleeve and a second hand wheel, The second sleeve is sleeved on the outside of the support rod and is threadably matched with the support rod, and the second hand wheel is fixedly mounted on one end of the second sleeve.

5. A current transformer installation auxiliary device according to claim 1, characterized in that: A handle is fixedly arranged on the side wall of the bottom plate.

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