Three-degree-of-freedom support structure for GIS / GIL bus support

Abstract

The utility model belongs to the technical field of power equipment, and discloses a three-degree-of-freedom support structure for supporting a GIS / GIL bus, which adopts a layered structural design and comprises an axial buffer mechanism, a radial adjusting mechanism and a vertical adjusting mechanism which are sequentially arranged from top to bottom, the axial buffer mechanism is arranged at the bottom of a columnar shell for bearing the bus, and the radial adjusting mechanism is arranged at the bottom of the columnar shell for bearing the bus. The radial adjusting mechanism is detachably arranged between the axial buffering mechanism and the vertical adjusting mechanism; the axial buffering mechanism is in rolling contact with the columnar shell, so that the bus is movably connected in the axial direction, and the axial acting force borne by the bus is buffered; the radial adjusting mechanism adopts a sliding block and guide rail matched structure which is in rolling connection, so that the radial adjustment of the columnar shell is realized; according to the vertical adjusting mechanism, the height of the supporting sliding block is adjusted through a connecting rod structure, so that vertical adjustment of the columnar shell is achieved. The device is simple in overall structure, convenient to implement and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a three-degree-of-freedom bracket structure for supporting a GIS / GIL busbar. Background Art

[0002] As a component for collecting, distributing and transmitting electric energy, GIS / GIL busbar is an indispensable part of GIS products. Due to the characteristics of the busbar's layout structure, it will experience thermal barriers and shrinkage according to the ambient temperature, which requires the busbar to be able to stretch and scale with multiple degrees of freedom. At the same time, due to the manufacturing and installation errors of the GIS / GIL busbar and the settlement errors of the foundation construction, the busbar will be deformed in the vertical direction. However, the brackets used in the existing GIS / GIL assembly project only have axial and radial adjustment, and the radial direction is a sliding connection that is prone to jamming. Moreover, when the GIS / GIL busbar is deformed in the vertical direction, the bracket has been installed and cannot be adjusted, resulting in excessive stress on the busbar or bracket, which seriously affects the safe operation of the GIS / GIL equipment. Utility Model Content

[0003] The utility model provides a three-degree-of-freedom bracket structure for supporting a GIS / GIL busbar, which solves the technical problems that the existing bracket cannot adapt to the vertical deformation of the busbar, resulting in excessive stress on the busbar or the bracket.

[0004] The utility model can be realized through the following technical solutions:

[0005] A three-degree-of-freedom bracket structure for supporting a GIS / GIL busbar adopts a layered structural design, and includes an axial buffer mechanism, a radial adjustment mechanism, and a vertical adjustment mechanism which are sequentially arranged up and down, wherein the axial buffer mechanism is arranged at the bottom of a columnar shell supporting the busbar, and the radial adjustment mechanism is detachably arranged between the axial buffer mechanism and the vertical adjustment mechanism;

[0006] The axial buffer mechanism realizes the movable connection of the busbar in the axial direction through rolling contact with the cylindrical housing, so as to buffer the axial force applied to the busbar;

[0007] The radial adjustment mechanism adopts a rolling-connected slider guide matching structure to achieve radial adjustment of the columnar housing;

[0008] The vertical adjustment mechanism adopts a connecting rod structure to adjust the height of the supporting slider to achieve vertical adjustment of the columnar shell.

[0009] Further, the vertical adjustment mechanism includes a four-bar linkage hinged together at the head and tail, wherein a pair of two opposite hinged nodes are connected together by a screw rod, one end of the screw rod is exposed outside the four-bar linkage and is detachably connected to the crank, and the other two hinged nodes of the four-bar linkage are respectively rotatably connected to the corresponding supporting sliders.

[0010] By turning the crank, the length of the lead screw connected inside the four-bar linkage is changed to drive the four-bar linkage to open or contract, thereby changing the height of the supporting slider.

[0011] Furthermore, the supporting slider includes an upper slider and a lower slider of a right-angled triangle structure, and the cross-sections of their hypotenuses are arranged in relative contact, a right-angled surface of the lower slider is rotatably connected to a hinge node corresponding to the four-bar linkage through a connecting member, and a right-angled surface of the upper slider is connected to the radial adjustment mechanism.

[0012] Turning the crank in the positive direction shortens the length of the lead screw connected inside the four-bar linkage, drives the four-bar linkage to open, causes the two lower sliders to move outwards towards each other, and pushes the corresponding upper slider to move upwards, thereby increasing the height of the supporting slider;

[0013] Turning the crank in the opposite direction increases the length of the lead screw connected inside the four-bar linkage, which drives the four-bar linkage to contract, causing the two lower sliders to move inward toward each other, pushing the corresponding upper slider to move downward, thereby reducing the height of the supporting slider.

[0014] Furthermore, the top of the radial adjustment mechanism is connected to the axial buffer mechanism through an upper disassembly mechanism, and the bottom is connected to the vertical adjustment mechanism through a lower disassembly mechanism. The upper disassembly mechanism and the lower disassembly mechanism both adopt mortise and tenon structures to realize the disassembly connection between the radial adjustment mechanism and the axial buffer mechanism, the vertical adjustment mechanism, and between the axial buffer mechanism and the vertical adjustment mechanism.

[0015] Furthermore, the upper disassembly mechanism and the lower disassembly mechanism both include a radial base plate, on which a plurality of mortise and tenon structures are spaced apart, and a fixing pin is provided between the tenon and the mortise of each mortise and tenon structure, wherein the mortise and tenon of the lower disassembly mechanism are all connected to the radial adjustment mechanism, and its radial base plate is connected to the vertical adjustment mechanism; the radial base plate of the upper disassembly mechanism is connected to the radial adjustment mechanism, and its mortise and tenon are all connected to the axial buffer mechanism.

[0016] Further, the radial adjustment mechanism includes a support plate arranged along the radial direction of the columnar shell, a plurality of sliders are mounted on the support plate, each of the sliders includes a roller, the roller is arranged across the support plate and is rollingly connected to the support plate, and the two ends of the roller are respectively connected to respective C-shaped support frames, and the openings of the two C-shaped support frames are arranged opposite to each other and are respectively mounted on both sides of the support plate.

[0017] The top of each C-shaped support frame is connected via a radial base plate of an upper disassembly mechanism, and the bottom of the support plate is connected via a mortise and tenon of a lower disassembly mechanism.

[0018] Furthermore, the axial buffer mechanism includes two buffer rollers that are in rotational contact with the bottom of the cylindrical shell, whose rotation axes are perpendicular to the radial direction of the cylindrical shell, and are respectively arranged at the ends of the C-shaped substrate. A right-angle bracket is arranged at each end of the C-shaped substrate, and the two ends of the corresponding buffer rollers are respectively connected to the C-shaped substrate and the right-angle bracket.

[0019] Furthermore, a plurality of hoops are arranged at intervals on the C-shaped substrate, and the hoops cooperate with the columnar shell to limit the deformation amount of the columnar shell.

[0020] The beneficial technical effects of the utility model are:

[0021] 1. The upper disassembly mechanism and the lower disassembly mechanism are used to realize the detachable assembly between the radial adjustment mechanism and the axial buffer mechanism and the vertical adjustment mechanism, and between the axial buffer mechanism and the vertical adjustment mechanism, so that the three-degree-of-freedom bracket structure of the utility model can selectively adjust the corresponding functions according to the actual assembly needs of the busbar, simplify the overall structure while avoiding functional redundancy, and has stronger practicality and a wider range of applications;

[0022] 2. The radial adjustment mechanism of the utility model cleverly designs the cooperation between the roller slider and the supporting flat plate guide rail to realize the radial adjustment of rolling connection, which can effectively improve the jamming phenomenon caused by the sliding radial adjustment in the existing bracket, and has better stability and lower failure rate;

[0023] 3. The three-degree-of-freedom bracket structure of the utility model has an additional vertical adjustment function, which can adapt to the vertical deformation of the busbar caused by manufacturing and installation errors and foundation construction settlement, ensuring the safe operation of GIS / GIL equipment. In addition, the overall structure is simple, easy to implement, and more applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the coordination of the axial buffer mechanism, radial adjustment mechanism and vertical adjustment mechanism of the utility model;

[0026] Figure 3 For the utility model Figure 2 The corresponding lateral projection diagram;

[0027] Figure 4 It is a structural schematic diagram of the vertical adjustment mechanism of the utility model;

[0028] Among them, 1-axial buffer mechanism, 11-buffer roller, 12-C-shaped base plate, 13-right angle bracket, 14-hoop, 2-radial adjustment mechanism, 21-support plate, 22-roller, 23-C-shaped support frame, 24-radial base plate, 25-mortise and tenon structure, 3-vertical adjustment mechanism, 31-four-bar linkage, 32-screw, 33-crank handle, 34-upper slider, 35-lower slider, 36-guide column. DETAILED DESCRIPTION

[0029] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings and preferred embodiments.

[0030] like Figure 1-3 As shown, the utility model provides a three-degree-of-freedom support structure for supporting a GIS / GIL busbar, which adopts a layered structural design and includes an axial buffer mechanism 1, a radial adjustment mechanism 2 and a vertical adjustment mechanism 3 which are sequentially arranged up and down, wherein the axial buffer mechanism 1 is arranged at the bottom of a columnar shell 4 that carries the busbar, and the radial adjustment mechanism 2 can be detachably arranged between the axial buffer mechanism 1 and the vertical adjustment mechanism 3; the axial buffer mechanism 1 realizes an axially movable connection of the busbar through rolling contact with the columnar shell 4 to buffer the axial force acting on the busbar; the radial adjustment mechanism 2 adopts a rolling-connected slider guide matching structure to realize radial adjustment of the columnar shell 4; the vertical adjustment mechanism 3 adopts a connecting rod structure to adjust the height of the supporting slider to realize vertical adjustment of the columnar shell. In this way, the height of the supporting slider is changed with the help of the vertical adjustment mechanism to change the overall height of the three-degree-of-freedom bracket, thereby adapting to the vertical deformation of the busbar caused by manufacturing and installation errors and foundation construction settlement, ensuring the safe operation of the GIS / GIL equipment, and at the same time, with the help of the detachable function of the radial adjustment mechanism, a free combination with the axial buffer mechanism and the vertical adjustment mechanism is achieved to adapt to the installation of a straight busbar or a bent busbar, thereby expanding the application range of the three-degree-of-freedom bracket structure of the utility model and making it more practical.

[0031] The details are as follows:

[0032] The axial buffer mechanism 1 includes two buffer rollers 11 that are in rotational contact with the bottom of the cylindrical shell 4. Their rotation axes are perpendicular to the radial direction of the cylindrical shell 4 and are respectively arranged at the ends of a C-shaped substrate 12. For the convenience of installation, we arrange a right-angle bracket at each end of the C-shaped substrate 12, and the two ends of the corresponding buffer rollers 11 are respectively connected to the C-shaped substrate 12 and the right-angle bracket 13.

[0033] At the same time, in order to prevent the busbar from being greatly deformed due to unexpected situations, a plurality of clamps 14 are arranged at intervals on the C-shaped substrate 12 . The arc section of the clamp 14 matches the shape of the columnar shell 4 to limit the deformation of the columnar shell 4 .

[0034] like Figure 4 As shown, the vertical adjustment mechanism 3 includes a four-bar linkage 31 hinged together at the head and tail, wherein a pair of opposite hinged nodes are connected together by a screw rod 32, one end of the screw rod 32 is exposed outside the four-bar linkage 31, and is detachably connected to a crank 33, and the other two hinged nodes of the four-bar linkage 31 are respectively rotatably connected to their corresponding supporting sliders, so that by rotating the crank 33, the length of the screw rod connected to the inside of the four-bar linkage 31 is changed to drive the four-bar linkage 31 to open or contract, thereby changing the height of the supporting slider.

[0035] In order to facilitate the assembly of the screw rod, we add a connecting block with a bearing and a connecting block with an internal thread at the connection between the screw rod 32 and the hinge node, wherein the bearing and the internal thread are arranged in the middle of the connecting block, and U-shaped bayonet sockets are provided at both ends of the connecting block to be hinged with the corresponding connecting rod end in the corresponding four-bar linkage 31. The screw rod end connected to the crank 33 cooperates with the connecting block with the internal thread to realize the function of turning the crank 33 to cause the four-bar linkage 31 to deform. At the same time, a detachable structure can be adopted between the crank 33 and the screw rod 32. For example, the screw rod end is set to a square structure, and the end of the crank is provided with a notch matching it. In this way, when the vertical height of the three-degree-of-freedom bracket needs to be adjusted, the crank can be clipped to the screw rod end.

[0036] The supporting slider includes an upper slider 34 and a lower slider 35 of a right-angled triangle structure, and the cross-sections of their hypotenuses are arranged in relative contact. A right-angled surface of the lower slider 35 is rotatably connected to a hinge node corresponding to the four-bar linkage 31 through a connecting piece, and a right-angled surface of the upper slider 34 is connected to the radial adjustment mechanism 2. In this way, the crank 33 is rotated forward to shorten the length of the screw rod 32 connected to the inside of the four-bar linkage 31, drive the four-bar linkage 31 to open, and make the two lower sliders 35 move outward toward each other, pushing the corresponding upper slider 34 to move upward, so as to increase the height of the supporting slider;

[0037] Rotating the crank 33 in the opposite direction increases the length of the screw rod 32 connected inside the four-bar linkage 31, which drives the four-bar linkage 31 to contract, causing the two lower sliders 35 to move inwards toward each other, pushing the corresponding upper slider 34 to move downwards, so as to reduce the height of the supporting slider.

[0038] At the same time, in order to ensure the consistency of the movement of the upper slider 34 and the lower slider 35, we set a plurality of guide columns 36 around the two supporting sliders, and the supporting slider and the four-bar linkage 31 can be set between the two radial substrates, wherein the upper slider 34 is connected to the radial substrate on the upper side, and the lower slider 35 and the four-bar linkage 31 are connected to the radial substrate on the lower side, and these guide columns 36 pass through the two radial substrates and are set around the supporting sliders. In this way, as the four-bar linkage 31 opens or contracts, the upper slider 34 and the lower slider 35 can slide up and down relatively stably under the guiding action of the guide columns 36 to achieve height adjustment of the supporting sliders.

[0039] The radial adjustment mechanism 2 includes a support plate 21 arranged along the radial direction of the columnar shell 4, and a plurality of sliders are mounted on the support plate 21, each slider includes a roller 22, and the roller 22 is arranged across the support plate 21 and is rollingly connected to the support plate 21, and its two ends are respectively connected to respective C-shaped support frames 23, and the openings of the two C-shaped support frames 23 are arranged opposite to each other and are respectively mounted on both sides of the support plate 21, and the roller 22 can be connected to the middle plate position of the C-shaped support frame 23 to form a slider structure, so that under the action of gravity of the axial buffer mechanism 1, the roller 22 is close to the support plate 21, and the two C-shaped support frames 23 are not in contact with the support plate 21, thereby realizing the rolling connection between the slider and the support plate 21, and improving the jamming phenomenon caused by the sliding connection in the existing bracket structure.

[0040] In order to limit the moving distance of the slider and prevent the slider from moving out of the supporting plate 21 , stop blocks are provided at the radial ends of the supporting plate 21 .

[0041] Since the busbar installation method needs to be determined according to the actual situation of the on-site infrastructure, it may be a straight type or a bent type. For the straight type, there is basically no radial deformation, so there is no need for a radial adjustment mechanism. Therefore, the three-degree-of-freedom bracket structure of the utility model adds a detachable function on the radial adjustment mechanism 2 to realize the detachable connection between the radial adjustment mechanism 2 and the axial buffer mechanism 1, the vertical adjustment mechanism 3, and the axial buffer mechanism 1 and the vertical adjustment mechanism 3, that is, the top of each C-shaped support frame 23 is connected to the axial buffer mechanism 1 through an upper disassembly mechanism, and the bottom of the support plate 21 is connected to the vertical adjustment mechanism 3 through a lower disassembly mechanism. The upper disassembly mechanism and the lower disassembly mechanism can both adopt mortise and tenon structures. Now, it includes a radial base plate 24, on which a plurality of mortise and tenon structures 25 such as dovetail groove mortise and tenon structures are arranged at intervals, wherein the mortise and tenon parts of the lower disassembly mechanism are all connected to the bottom surface of the support plate 21, and its radial base plate 24 is connected to the vertical adjustment mechanism 3 such as connected to the upper slider 34; the radial base plate 24 of the upper disassembly mechanism is connected to the top of the C-shaped support frame 23, and its mortise and tenon parts are all connected to the axial buffer mechanism 1 such as the C-shaped base plate 12, so that even if the radial adjustment mechanism 2 is removed, the mortise and tenon parts on the C-shaped base plate 12 in the axial buffer mechanism 1 can also cooperate with the mortise and tenon parts on the radial base plate 24 connected to the upper slider 34 in the vertical adjustment mechanism 3, so as to realize the detachable cooperation between the axial buffer mechanism 1 and the vertical adjustment mechanism 3.

[0042] For stability, a fixing pin is provided between the tenon and the mortise of the mortise and tenon structure 25. The fixing pin runs through the tenon and the mortise. When the corresponding mechanism is assembled, the fixing pin is inserted to prevent relative movement between the two. When disassembly is required, the fixing pin is first pulled out and then the mortise and tenon connection is released.

[0043] Although specific embodiments of the present invention are described above, those skilled in the art should understand that these are merely examples and that various changes or modifications may be made to these embodiments without departing from the principles and essence of the present invention. Therefore, the scope of protection of the present invention is limited by the appended claims.

Claims

1. A three-degree-of-freedom support structure for GIS / GIL busbar support, characterized in that: A layered structure design is adopted, including an axial buffer mechanism, a radial adjustment mechanism and a vertical adjustment mechanism which are sequentially arranged up and down, wherein the axial buffer mechanism is arranged at the bottom of the columnar housing carrying the busbar, and the radial adjustment mechanism is detachably arranged between the axial buffer mechanism and the vertical adjustment mechanism; The axial buffer mechanism realizes the movable connection of the busbar in the axial direction through rolling contact with the cylindrical housing, so as to buffer the axial force applied to the busbar; The radial adjustment mechanism adopts a rolling-connected slider guide matching structure to achieve radial adjustment of the columnar housing; The vertical adjustment mechanism adopts a connecting rod structure to adjust the height of the supporting slider to achieve vertical adjustment of the columnar shell.

2. The three-degree-of-freedom support structure for GIS / GIL busbar support according to claim 1, characterized in that: The vertical adjustment mechanism comprises a four-bar linkage hinged together at the head and tail, wherein a pair of two opposite hinged nodes are connected together by a screw rod, one end of the screw rod is exposed outside the four-bar linkage and is detachably connected to the crank, and the other two hinged nodes of the four-bar linkage are respectively rotatably connected to the corresponding supporting sliders. By turning the crank, the length of the lead screw connected inside the four-bar linkage is changed to drive the four-bar linkage to open or contract, thereby changing the height of the supporting slider.

3. The three-degree-of-freedom bracket structure for GIS / GIL busbar support according to claim 2, characterized in that: The supporting slider comprises an upper slider and a lower slider of a right-angled triangle structure, and the cross-sections of the hypotenuses thereof are arranged in relative contact, a right-angled surface of the lower slider is rotatably connected to a hinge node corresponding to the four-bar linkage through a connecting member, and a right-angled surface of the upper slider is connected to a radial adjustment mechanism. Turning the crank in the positive direction shortens the length of the lead screw connected inside the four-bar linkage, drives the four-bar linkage to open, causes the two lower sliders to move outwards towards each other, and pushes the corresponding upper slider to move upwards, thereby increasing the height of the supporting slider; Turning the crank in the opposite direction increases the length of the lead screw connected inside the four-bar linkage, which drives the four-bar linkage to contract, causing the two lower sliders to move inward toward each other, pushing the corresponding upper slider to move downward, thereby reducing the height of the supporting slider.

4. The three-degree-of-freedom bracket structure for GIS / GIL busbar support according to claim 1, characterized in that: The top of the radial adjustment mechanism is connected to the axial buffer mechanism through an upper disassembly mechanism, and the bottom is connected to the vertical adjustment mechanism through a lower disassembly mechanism. The upper disassembly mechanism and the lower disassembly mechanism both adopt mortise and tenon structures to realize the disassembly connection between the radial adjustment mechanism and the axial buffer mechanism, the vertical adjustment mechanism, and between the axial buffer mechanism and the vertical adjustment mechanism.

5. The three-degree-of-freedom support structure for GIS / GIL busbar support according to claim 4, characterized in that: The upper disassembly mechanism and the lower disassembly mechanism both include a radial base plate, on which a plurality of mortise and tenon structures are arranged at intervals, and a fixing pin is arranged between the tenons and the mortise and tenon of each mortise and tenon structure, wherein the mortise and tenon of the lower disassembly mechanism are all connected to the radial adjustment mechanism, and its radial base plate is connected to the vertical adjustment mechanism; the radial base plate of the upper disassembly mechanism is connected to the radial adjustment mechanism, and its mortise and tenon are all connected to the axial buffer mechanism.

6. The three-degree-of-freedom support structure for GIS / GIL busbar support according to claim 5, characterized in that: The radial adjustment mechanism comprises a support plate arranged along the radial direction of the columnar housing, a plurality of sliders are mounted on the support plate, each of the sliders comprises a roller, the roller is arranged across the support plate and is rollingly connected to the support plate, and the two ends of the roller are respectively connected to respective C-shaped support frames, the openings of the two C-shaped support frames are arranged opposite to each other, and are respectively mounted on both sides of the support plate, The top of each C-shaped support frame is connected via a radial base plate of an upper disassembly mechanism, and the bottom of the support plate is connected via a mortise and tenon of a lower disassembly mechanism.

7. The three-degree-of-freedom support structure for GIS / GIL busbar support according to claim 1, characterized in that: The axial buffer mechanism includes two buffer rollers that are in rotational contact with the bottom of the cylindrical shell, whose rotation axes are perpendicular to the radial direction of the cylindrical shell, and are respectively arranged at the ends of the C-shaped substrate. A right-angle bracket is arranged at each end of the C-shaped substrate, and the two ends of the corresponding buffer rollers are respectively connected to the C-shaped substrate and the right-angle bracket.

8. The three-degree-of-freedom support structure for GIS / GIL busbar support according to claim 7, characterized in that: A plurality of hoops are arranged at intervals on the C-shaped substrate, and the hoops cooperate with the columnar shell to limit the deformation amount of the columnar shell.

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