Supporting device for installing mutual inductor on circuit breaker

Abstract

The utility model relates to a supporting device for installing a mutual inductor on a circuit breaker, which comprises a support B, the support B is fixedly connected on a support A for bearing the circuit breaker, and the mutual inductor is arranged on the support B; the end, away from the support A, of the support B is connected to the ground through a bearing rod, a screw hole is formed in the end, facing the support B, of the bearing rod, a screw matched with the screw hole and extending in the axial direction of the bearing rod is arranged in the screw hole, and an adjusting block driving the screw to rotate is fixedly connected to the screw. A through hole extending in the axial direction of the screw rod is formed in the support B, and the end, away from the bearing rod, of the screw rod penetrates through the through hole and is fixedly connected with the support B through a nut A; the end, away from the support A, of the support B is supported through the bearing rod, and the support A and / or the support B are / is prevented from being damaged due to overweight of the mutual inductor; the height of the bearing rod is increased through the screw rod, so that the adaptive range of the bearing rod is enlarged; the method is simple, efficient, safe and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to power technical field especially relates to a support device for installing mutual inductor on circuit breaker. BACKGROUND

[0002] In actual application and state grid batch bidding, 35kV circuit breaker is required to be provided with external mutual inductor, and the existing scheme is to install mutual inductor support on the circuit breaker, and the circuit breaker support is specially designed to be provided with a hole in the back of the cross beam of the circuit breaker for fixing the current mutual inductor; the cross beam of the circuit breaker is formed by steel plate processing, and simulation calculation shows that the weight of the current mutual inductor should not be greater than 100kg; the mutual inductor of the mainstream manufacturer is generally an external dry-type current mutual inductor, and the weight of the external dry-type current mutual inductor is about 150kg, which is easy to cause the mutual inductor support or the circuit breaker support to be deformed or damaged; in order to meet the weight requirement, the size and weight of the mutual inductor need to be specially changed by the supporting manufacturer, and higher requirements are put forward for the parameters of the mutual inductor, which further affects the product qualification rate and seriously affects the installation efficiency of the current mutual inductor. Figure 6 Therefore, a support device capable of bearing a heavy mutual inductor is required.

[0003] UTILITY MODEL CONTENTS UTILITY MODEL CONTENTS

[0004] The utility model provides a support device for installing mutual inductor on circuit breaker, which supports one end of support B away from support A through a load-bearing rod, prevents support A and / or support B from being damaged due to the excessive weight of the mutual inductor, increases the height of the load-bearing rod through a screw rod, and thus increases the adaptation range of the load-bearing rod.

[0005] The utility model is implemented through the following technical scheme, provides a support device for installing mutual inductor on circuit breaker, including support B, support B is fixedly connected on support A for bearing circuit breaker, and the mutual inductor is arranged on support B; one end of support B away from support A is connected on the ground through a load-bearing rod, a screw hole is formed in one end of the load-bearing rod facing support B, a screw rod extending along the axial direction of the load-bearing rod and matched with the screw hole is arranged in the screw hole, and an adjusting block driving the screw rod to rotate is fixedly connected on the screw rod; a through hole extending along the axial direction of the screw rod is formed in support B, one end of the screw rod away from the load-bearing rod penetrates through the through hole and is fixedly connected with support B through a nut A; one end of support B away from support A is supported through the load-bearing rod, preventing support A and / or support B from being damaged due to the excessive weight of the mutual inductor; the height of the load-bearing rod is increased through the screw rod, and thus the adaptation range of the load-bearing rod is increased.

[0006] As optimization, the screw rod is sleeved with a nut B matched with the screw rod at one end of the load bearing rod, and the screw rod is fixed to the load bearing rod through the nut B; the load bearing rod and the screw rod are fastened through the nut B to prevent the screw rod from loosening in the screw hole.

[0007] As optimization, the bottom of the load bearing rod is fixed with a load bearing seat, and the load bearing seat comprises a load bearing plate extending in the horizontal direction and fixed to the load bearing rod; the contact area of the load bearing rod and the ground is increased through the load bearing plate, and the load bearing rod is conveniently installed through the load bearing seat, thereby reducing the construction difficulty.

[0008] As optimization, the bottom of the load bearing plate is fixed with a limiting rod extending in the vertical direction, and the bottom of the limiting rod is provided with a reverse tapered spike; the load bearing plate is prevented from deviating through the limiting rod.

[0009] As optimization, the bottom of the load bearing plate is fixed with a limiting plate extending in the circumferential direction of the load bearing plate and inclined in the horizontal direction, and the end of the limiting plate away from the load bearing plate extends in the direction away from the axis of the load bearing plate; the soil loss at the bottom of the load bearing plate is prevented through the limiting plate, thereby weakening the load bearing effect of the load bearing plate and the load bearing rod.

[0010] The beneficial effects of the utility model are as follows: the end of support B away from support A is supported through the load bearing rod, support A and / or support B are prevented from being damaged due to the excessive weight of the mutual inductor; the height of the load bearing rod is increased through the screw rod, thereby increasing the adaptation range of the load bearing rod; the contact area of the load bearing rod and the ground is increased through the load bearing plate, the load bearing rod is conveniently installed through the load bearing seat, thereby reducing the construction difficulty; the load bearing plate is prevented from deviating through the limiting rod; the soil loss at the bottom of the load bearing plate is prevented through the limiting plate, thereby weakening the load bearing effect of the load bearing plate and the load bearing rod. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural schematic view of the utility model;

[0012] Figure 2 It is a structural schematic view of A of Figure 1

[0013] Figure 3 It is a side view of the utility model;

[0014] Figure 4 It is a structural schematic view of B of Figure 3

[0015] Figure 5 It is a sectional view of the load bearing seat of the utility model;

[0016] Figure 6 It is a schematic view of the prior art scheme;

[0017] The drawings show:

[0018] ​​1, support A, 2, circuit breaker, 3, support B, 4, mutual inductor, 5, bearing rod, 6, foundation, 7, bearing seat, 8, screw rod, 9, adjusting block, 10, nut A, 11, nut B, 12, gasket, 301, support frame, 302, angle steel, 701, bearing plate, 702, limiting rod, 703, limiting plate. DETAILED DESCRIPTION

[0019] To clearly illustrate the technical features of the present scheme, the present scheme will be described below through specific embodiments.

[0020] As shown in Figure 1 , 2 , 3 and 4, the support device for mounting the mutual inductor on the circuit breaker of the utility model, including support B3, support B3 is fixedly connected on support A1 for bearing circuit breaker 2, mutual inductor 4 is arranged on support B3;The end away from support A1 of support B3 is connected on the ground through bearing rod 5, the end of bearing rod 5 towards support B3 is provided with screw hole, screw hole is provided with screw rod 8 and screw hole is matched and along the axial extension of bearing rod 5, and screw rod 8 is fixedly connected with adjusting block 9 for driving screw rod 8 to rotate;Support B3 is provided with through hole extending along the axial direction of screw rod 8, the end away from bearing rod 5 of screw rod 8 is penetrated through the through hole and is fixedly connected with support B3 through nut A10;Support A1 extends along the vertical direction, circuit breaker 2 is fixedly connected on the top of support A1, and support B3 is fixedly connected on support A1 by bolt;The top of support B3 extends along the horizontal direction, and support B3 includes a plurality of support frames 301 fixedly connected on support A1, the support frames 301 are sequentially fixedly connected by angle steel 302, and the axis of angle steel 302 and support frame 301 are perpendicular to each other;Bearing rod 5 extends along the vertical direction, adjusting block 9 is a polygonal prism, and adjusting block 9 and screw rod 8 are coaxially fixedly connected;A plurality of foundations 6 are provided on the ground, and the bottom of support A1 and bearing rod 5 is fixedly connected on foundation 6 by bolt respectively;Through hole is screw hole matched with screw rod 8, and the upper and lower ends of through hole are provided with nut A10 respectively;Nut A10 and support are provided with gasket 12, and gasket 12 is sleeved on screw rod 8.

[0021] Support A1 is fixedly connected on the ground, circuit breaker 2 is fixedly connected on the top of support, and support B3 is fixedly connected on the side of support A1;The bottom of bearing rod 5 is fixedly connected on the ground, nut A10 is sleeved from the top of screw rod 8, and screw rod 8 penetrates the threaded hole on nut A10;Rotating adjusting block 9, adjusting block 9 drives screw rod 8 to rotate in screw hole, screw rod 8 drives nut A10 to move upwards, until the top of screw rod 8 penetrates through the through hole, and the top of nut A10 and support B3 are attached, stop rotating adjusting block 9;Another nut A10 is sleeved from the top of screw rod 8, until the bottom of second nut A10 and support B3 are attached, reverse rotating two nuts A10, nut A10 fastens screw rod 8 and support B3;Finally, the mutual inductor 4 is fixedly connected on support B3.

[0022] As shown in Figure 2 , 3 and 4, the screw rod 8 is sleeved with a nut B11 matched with the screw rod 8 at one end of the load bearing rod 5, and the screw rod 8 is fixedly connected with the load bearing rod 5 through the nut B11; a gasket 12 is arranged between the nut B11 and the load bearing rod 5, and the gasket 12 is sleeved on the screw rod 8.

[0023] After the bottom of the screw rod 8 is sleeved into the nut B11 and the rotating adjusting block 9 is stopped, the nut B11 is rotated until the bottom of the nut B11 is in close contact with the top of the load bearing rod 5, and the screw rod 8 and the load bearing rod 5 are fastened by the nut B11.

[0024] As shown in Figure 5 , the bottom of the load bearing rod 5 is fixedly connected with a load bearing seat 7, and the load bearing seat 7 comprises a load bearing plate 701 extending in the horizontal direction and fixedly connected with the load bearing rod 5; the load bearing seat 7 is used to replace the foundation 6 to bear the load bearing rod 5 in the ground foundation 6-free era; the bottom of the load bearing rod 5 is fixedly connected with the load bearing plate 701 through chemical bolts, and the load bearing rod 5 and the load bearing plate 701 have the same vertical axis.

[0025] The load bearing plate 701 is placed on the ground, and the top of the load bearing plate 701 is fixedly connected with the bottom of the load bearing rod 5.

[0026] As shown in Figure 5 , the bottom of the load bearing plate 701 is fixedly connected with a limiting rod 702 extending in the vertical direction, and the bottom of the limiting rod 702 is provided with an inverted conical spike.

[0027] The load bearing plate 701 is placed on the ground, and the bottom of the limiting rod 702 faces the ground; a certain pressure is applied to the load bearing plate 701, and the limiting rod 702 is embedded in the ground under the action of the pressure.

[0028] As shown in Figure 5 , the bottom of the load bearing plate 701 is fixedly connected with a limiting plate 703 extending in the circumferential direction of the load bearing plate 701 and inclined in the horizontal direction, and the end of the limiting plate 703 away from the load bearing plate 701 extends in the direction away from the axis of the load bearing plate 701; the limiting plate 703 and the load bearing plate 701 are perpendicular to each other, so that the limiting plate 703 is embedded in the ground.

[0029] The load bearing plate 701 is placed on the ground, and the bottom of the limiting plate 703 and the limiting rod 702 face the ground; a certain pressure is applied to the load bearing plate 701, and the limiting plate 703 and the limiting rod 702 are embedded in the ground under the action of the pressure.

[0030] In actual production process, the support A1 is fixed on the foundation 6 arranged on the ground, the circuit breaker 2 is fixed on the top of the support, the support B3 is fixed on the side of the support A1; if there is the foundation 6 directly below the support B3, the bottom of the bearing rod 5 is fixed on the foundation 6; if there is no foundation 6 directly below the support B3, the bearing plate 701 is placed on the ground, the limiting plate 703 and the bottom of the limiting rod 702 are towards the ground, and a certain pressure is applied to the bearing plate 701, the limiting plate 703 and the limiting rod 702 are embedded in the ground under the action of the pressure, and the bottom of the bearing rod 5 and the top of the bearing plate 701 are fixedly connected; the nut B11 is sleeved from the bottom of the screw rod 8, the nut A10 is sleeved from the top of the screw rod 8, and the screw rod 8 penetrates the threaded holes of the nut A10 and the nut B11; the adjusting block 9 is rotated, the adjusting block 9 drives the screw rod 8 to rotate in the screw hole, the screw rod 8 drives the nut A10 to move upwards, until the top of the screw rod 8 penetrates the through hole, and the top of the nut A10 and the support B3 are attached, the adjusting block 9 is stopped; the nut B11 is rotated, until the bottom of the nut B11 and the top of the bearing rod 5 are attached, the nut B11 fastens the screw rod 8 and the bearing rod 5; another nut A10 is sleeved from the top of the screw rod 8, until the bottom of the second nut A10 and the support B3 are attached, the two nuts A10 are reversely rotated, the nut A10 fastens the screw rod 8 and the support B3; finally, the mutual inductor 4 is fixed on the support B3.

[0031] Of course, the above description is not limited to the above examples, and the technical features not described in the utility model can be realized by or using the prior art, which will not be repeated here; the above embodiments and drawings are only used to illustrate the technical scheme of the utility model and are not a limitation of the utility model, the utility model has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that the changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model.

Claims

1. A support device for mounting a current transformer on a circuit breaker, comprising a bracket B (3), the bracket B (3) being fixedly connected to a bracket A (1) for supporting the circuit breaker (2), and the current transformer (4) being mounted on the bracket B (3); characterized in that: The end of bracket B (3) away from bracket A (1) is connected to the ground through a load-bearing rod (5). The end of the load-bearing rod (5) facing bracket B (3) has a screw hole. A screw rod (8) that is compatible with the screw hole and extends along the axial direction of the load-bearing rod (5) is provided in the screw hole. An adjusting block (9) that drives the screw rod (8) to rotate is fixed on the screw rod (8). A through hole extending along the axial direction of the screw rod (8) is provided on bracket B (3). The end of the screw rod (8) away from the load-bearing rod (5) passes through the through hole and is fixed to bracket B (3) through a nut A (10).

2. The support device for mounting a current transformer on a circuit breaker according to claim 1, characterized in that: The end of the screw (8) facing the load-bearing rod (5) is fitted with a nut B (11) that is compatible with the screw (8), and the screw (8) is fixedly connected to the load-bearing rod (5) through the nut B (11).

3. The support device for mounting a current transformer on a circuit breaker according to claim 1, characterized in that: The bottom of the load-bearing rod (5) is fixedly connected to a load-bearing seat (7), which includes a load-bearing plate (701) that extends horizontally and is fixedly connected to the load-bearing rod (5).

4. The support device for mounting a current transformer on a circuit breaker according to claim 3, characterized in that: The bottom of the load-bearing plate (701) is fixed with a limiting rod (702) extending in the vertical direction, and the bottom of the limiting rod (702) is provided with an inverted conical spike.

5. The support device for mounting a current transformer on a circuit breaker according to claim 3, characterized in that: A limiting plate (703) is fixedly provided at the bottom of the load-bearing plate (701) extending circumferentially along the load-bearing plate (701) and inclined in the horizontal direction. The end of the limiting plate (703) away from the load-bearing plate (701) extends in a direction away from the axis of the load-bearing plate (701).

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