Sector support

Abstract

The utility model provides a sector support which comprises a middle support part, a side support part and a walking part, the side support part comprises a first side support assembly and a second side support assembly, and the first side support assembly and the second side support assembly are arranged on the two sides of the middle support part respectively; the middle support part and the side support parts each comprise a supporting telescopic piece and a telescopic square box, and the supporting telescopic pieces are arranged on the two sides of the telescopic square boxes. The walking part comprises a bottom lifting assembly and a pushing driving piece, the bottom lifting assembly is arranged at the bottoms of the middle support part and the side support parts, and the pushing driving piece is connected with the middle support part and the side support parts. The fan-shaped surface support can achieve a temporary supporting function on a goaf top plate, the overall structure is compact in cooperation, more flexible lifting can be achieved, the whole equipment cannot be separated left and right under the action of pressure, the width is enough, the self-balance performance is excellent, and the equipment is not prone to being torn; friction resistance between the chassis and the ground is reduced during walking, and walking is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of support for coal mine, in particular to a fan-shaped support. BACKGROUND

[0002] With the development of science and technology, mechanization and automation have become indispensable in traditional industrial fields, and the fan-shaped support is mainly used for temporary support of the roof of the goaf when the support is withdrawn after the coal mining of the working face is completed.

[0003] The existing fan-shaped support controls the action of each component through a hydraulic system, contacts the ground by using side supports, and balances the equipment under pressure by using side guards to resist the side slope. The tail four-link mechanism is used to realize the stability of the vertical column oil cylinder when it is extended and retracted. The tail inclined plate is used to bear the pressure of the collapsed back roof. However, the existing device has many defects in use. First, the width of the device itself is too narrow, and the balance of the device itself under the roof pressure is poor. The connection between the two side supports and the middle support is weak, and it is easy to be "torn". Second, the tail four-link mechanism is easy to be stuck, causing the support to be not flexible in lifting. Finally, the angle of the tail inclined plate cannot be adjusted actively, and it is easy to be crushed by the collapsed roof, causing the entire device to be buried and unable to move. In addition, the entire chassis is in contact with the ground when moving forward, resulting in large frictional resistance.

[0004] Therefore, it is necessary to design a new fan-shaped support to solve the above problems. CONTENT OF THE INVENTION

[0005] Therefore, in order to overcome the defects of the prior art, the present application provides a fan-shaped support, which effectively solves the problems of weak main body connection, mechanism easy to be stuck and not flexible in lifting, unable to adjust the angle, and large frictional resistance when moving forward due to the structural defects of the existing fan-shaped support.

[0006] According to the fan-shaped support provided by the present application, the fan-shaped support comprises a middle support part, a side support part and a walking part, the side support part comprises a first side support assembly and a second side support assembly assembled into one body, the first side support assembly and the second side support assembly are respectively arranged on both sides of the middle support part, the middle support part and the side support part both comprise a supporting telescopic piece and a telescopic square box, the supporting telescopic piece is arranged on both sides of the telescopic square box, the walking part comprises a lifting bottom assembly and a pushing driving piece, the lifting bottom assembly is arranged at the bottom of the middle support part and the side support part, and the pushing driving piece is connected with the middle support part and the side support part.

[0007] Preferably, the side support part further comprises a connecting beam located at the bottom of the side support part, the lifting bottom assembly comprises a first lifting bottom arranged at the connecting beam and a second lifting bottom arranged at the middle support part, and the lifting bottom assembly is capable of being extended and retracted in the vertical direction to lift the bottom of the middle support part and the bottom of the side support part.

[0008] Preferably, the first end of the pushing belt member is arranged at the connecting beam, and the second end of the pushing belt member is connected with the bottom of the middle support part.

[0009] Preferably, the bottom of the first side support assembly, the connecting beam and the bottom of the second side support assembly surround the bottom of the middle support part.

[0010] Preferably, the top of the middle support part and the top of the side support part are respectively provided with a middle top beam and a side top beam, the first end of the supporting telescopic member and the first end of the telescopic square box are respectively connected with the middle top beam and the side top beam, and the second end of the supporting telescopic member and the second end of the telescopic square box are respectively arranged at the bottom of the middle support part and the bottom of the side support part.

[0011] Preferably, the top of the middle support part and the top of the side support part further respectively comprise a middle cantilever beam and a side cantilever beam, and the middle cantilever beam and the side cantilever beam are respectively arranged at the end of the middle top beam and the end of the side top beam in a position-adjustable manner through a first adjusting member.

[0012] Preferably, the side of the side support part is provided with a deflection adjusting square box, the deflection adjusting square box is arranged in a telescopic manner at the side support part, and the telescopic direction of the deflection adjusting square box is perpendicular to the moving direction of the sector surface support.

[0013] Preferably, the first side support assembly and the second side support assembly both comprise a side top beam, the side top beam of the first side support assembly and the side top beam of the second side support assembly are both formed in an L-shaped structure, the two L-shaped structures are arranged symmetrically to each other to form a U-shaped structure, and the middle top beam of the middle support part is arranged inside the U-shaped structure.

[0014] Preferably, the sector surface support further comprises a side support part, and the side support part is arranged in a position-adjustable manner at the bottom of the side support part through a second adjusting member.

[0015] Preferably, the number of the supporting telescopic members is plural, and the plural supporting telescopic members are arranged around the telescopic square box.

[0016] According to the fan-shaped surface support, through cooperation of the middle support part, the side support part and the walking part, the fan-shaped surface support can play a temporary supporting function on the goaf roof, the middle support part and the side support part adopt the cooperation supporting form of the supporting telescopic part and the telescopic square box, compared with the four-bar linkage mechanism in the prior art, the strength is better, and the fan-shaped surface support is not easy to be stuck, and more flexible lifting can be realized; through assembly of the first side support assembly and the second side support assembly, the whole device will not be separated left and right under the action of pressure, has sufficient width, under the pressure of the goaf roof, the self-balancing performance is excellent, and the fan-shaped surface support is not easy to be torn; through cooperation of the middle support part and the side support part, the middle part and the two sides are flexible in movement and will not be limited and stuck; through driving of the walking part, the middle support part and the side support part can walk alone, and the friction resistance between the chassis and the ground is greatly reduced during walking, so that more excellent and flexible arrangement can be realized.

[0017] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are specifically described below, and the accompanying drawings are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 A structure schematic view of a fan-shaped surface support according to an embodiment of the present application is shown;

[0020] Figure 2 Another view structure schematic view of a fan-shaped surface support according to an embodiment of the present application is shown;

[0021] Figure 3 A bottom view of a fan-shaped surface support according to an embodiment of the present application is shown;

[0022] Figure 4 A partial structure schematic view of the bottom of a fan-shaped surface support according to an embodiment of the present application is shown.

[0023] The drawings show that: 1 is a side roof beam, 2 is a middle roof beam, 3 is a side eave beam, 4 is a middle eave beam, 5 is a supporting telescopic part, 6 is a telescopic square box, 7 is a first lifting bottom part, 8 is a second lifting bottom part, 9 is a pushing driving part, 10 is a connecting beam, 11 is a bias adjusting square box, 12 is a side support part, 13 is a first adjusting part, 14 is a second adjusting part, S1 is a first direction. DETAILED DESCRIPTION

[0024] So that the objectives, technical solutions and advantages of the embodiments of the present application are more apparent, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0026] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0027] In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "communication", "connection" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] According to the fan-shaped surface support provided by the utility model, when the support is withdrawn after the coal mining of the coal mine working face is completed, the temporary support of the goaf roof is realized, the fan-shaped surface support includes an intermediate support part, a side support part and a walking part. Figures 1 to 4 As shown in the figure, the fan-shaped surface support is used for temporary support of the goaf roof when the support is withdrawn after the coal mining of the coal mine working face is completed, and the fan-shaped surface support includes an intermediate support part, a side support part and a walking part.

[0029] In the following description, reference will be made to Figures 1 to 4The detailed structure of the middle support part, the side support part and the walking part of the fan-shaped support is described in detail. In addition, in Figure 1 and Figure 2 , the first direction S1 represents the advancing direction of the fan-shaped support, that is, the first direction S1 represents the direction extending from the rear end to the front end of the fan-shaped support.

[0030] As shown in Figures 1 to 4 , in the embodiment, the middle support part and the side support part jointly play a supporting role, can temporarily support the roof of the goaf, and the walking part is arranged at the bottom of the middle support part and the side support part, so that the movement and walking of the middle support part and the side support part can be realized.

[0031] Specifically, the side support part comprises a first side support assembly and a second side support assembly assembled into one body, and the first side support assembly and the second side support assembly are arranged on the two sides of the middle support part respectively, and the first side support assembly and the second side support assembly can simultaneously move and walk as a whole. The middle support part and the side support part each comprise a supporting telescopic part 5 and a telescopic square box 6, and the supporting telescopic part 5 is arranged on the two sides of the telescopic square box 6. The supporting telescopic part 5 can be, for example, a supporting oil cylinder used in the prior art, and the telescopic square box 6 can comprise a plurality of supporting structures sleeved with each other, and the supporting structures can be formed in the shape of a cuboid. With the telescoping of the supporting telescopic part 5, the plurality of supporting structures sleeved with each other in the telescopic square box 6 can be correspondingly telescoped or shortened. A limiting block is arranged at the connection of each supporting structure, so that the two supporting structures will not be disconnected, and a connecting plate arranged at the connection can clamp and fix the two supporting structures to provide stable supporting force. By using the lifting mode of the supporting telescopic part 5 and the telescopic square box 6, the telescopic square box 6 can keep the supporting telescopic part 5 upright and prevent it from tilting in any direction, thereby providing additional support. At the same time, since the square box structure has a large size and few structural parts, and the lifting is realized in a passive driving mode (the telescopic square box 6 itself has no driving structure, and the lifting of the telescopic square box 6 is driven by the telescoping of the supporting telescopic part 5), the problem of the tail four-bar linkage mechanism being easily jammed in the original structure and causing the support to be not flexible in lifting is solved.

[0032] Further, the walking part comprises a lifting bottom assembly and a propelling driving part 9, the lifting bottom assembly is arranged at the bottom of the middle support part and the side support part, and the propelling driving part 9 is connected to the middle support part and the side support part. The lifting bottom assembly and the propelling driving part 9 can each be, for example, a hydraulic oil cylinder, an air cylinder or an electric driving part. The difference is that the oil cylinder (a hydraulic oil cylinder is used in the embodiment) adopted by the propelling driving part 9 has a large size, while the lifting bottom assembly is arranged in a square box in the telescopic square box 6, for example, to play a protective role. Figure 1 and Figure 2The middle support part extends in the vertical downward direction, so that the side support parts on both sides of the middle support part are lifted, so that the contact of the side support parts with the ground changes from surface contact to point contact, reducing the frictional resistance, and then the advancing driving member 9 extends (at this time the contact of the middle support part with the ground is still surface contact), and the side support parts on both sides of the middle support part are driven to move forward (move in the first direction S1) by the driving of the advancing driving member 9, at this time the supporting telescopic members 5 of the side support parts retract (the telescopic boxes 6 also retract at the same time), so that the top surfaces of the side support parts are separated from the roof of the goaf, and after reaching the set position, the lifting bottom assembly retracts, so that the bottom of the side support part is in contact with the ground, the supporting telescopic members 5 of the side support parts extend, and the top surface of the side support part abuts against the roof of the goaf, playing a role in supporting the roadway. Then the lifting bottom assembly of the middle support part works, and moves along the first direction S1 Figure 1 and Figure 2 The middle support part extends in the vertical downward direction, so that the middle support part and the ground change from surface contact to point contact, reducing the frictional resistance, and then the advancing driving member 9 retracts (at this time the contact of the side support part with the ground is surface contact), and the middle support part is driven to move forward (move in the first direction S1) by the driving of the advancing driving member 9, at this time the supporting telescopic members 5 of the middle support part retract (the telescopic boxes 6 also retract at the same time), so that the top surface of the middle support part is separated from the roof of the goaf, and after reaching the set position, the lifting bottom assembly of the middle support part retracts, so that the bottom of the middle support part is in contact with the ground, the supporting telescopic members 5 of the middle support part extend, and the top surface of the middle support part abuts against the roof of the goaf, playing a role in supporting the roadway. Then the action is repeated, and the middle support part moves forward, cooperating with other equipment to withdraw the hydraulic support.

[0033] The fan-shaped support can temporarily support the roof of the goaf through the cooperation of the middle support part, the side support part and the walking part. The middle support part and the side support part adopt the supporting form of the supporting telescopic members 5 and the telescopic boxes 6, which has better strength than the four-bar linkage mechanism in the prior art, and is not easy to be stuck, and can realize more flexible lifting. The first side support assembly and the second side support assembly are assembled together, so that the entire device will not be separated to the left and right under the action of pressure, has sufficient width, and has excellent self-balancing performance under the pressure of the roof of the goaf and is not easy to be "torn". The cooperation of the middle support part and the side support part makes the movement of the middle part and the two sides flexible and not limited to being stuck. The middle support part and the side support part can walk independently under the driving of the walking part, and the frictional resistance of the chassis with the ground is greatly reduced during walking, facilitating walking and realizing more excellent and flexible arrangement.

[0034] Preferably, as Figures 1 to 4As shown in the embodiment, the side support part can further comprise a connecting beam 10, which is located at the bottom of the side support part. The lifting assembly comprises a first lifting member 7 arranged on the connecting beam 10 and a second lifting member 8 arranged on the middle support part. The lifting assembly can be extended and retracted along the vertical direction (i.e. along the up-down direction in Figure 1 and Figure 2 The first lifting member 7 and the second lifting member 8 can each be formed as a square box structure, which comprises a cuboid box body and a hydraulic cylinder or a pneumatic cylinder arranged inside the box body. The cuboid box body can provide excellent protection for the hydraulic cylinder (a hydraulic cylinder is used in the embodiment). During operation, the cuboid box body can be extended and retracted together with the hydraulic cylinder. As shown in Figure 4 the first side support assembly and the second side support assembly can be formed as a common chassis through the connecting beam 10, and the bottom of the middle support part can be regarded as another chassis. The first lifting member 7 and the second lifting member 8 are respectively arranged on one of the chassis. When the first lifting member 7 is extended, one end of the chassis of the side support part is lifted, so that the contact between the chassis of the side support part and the ground changes from surface contact to point contact, thereby reducing the frictional resistance during walking. When the second lifting member 8 is extended, one end of the chassis of the middle support part is lifted, so that the contact between the chassis of the middle support part and the ground changes from surface contact to point contact, thereby reducing the frictional resistance during walking.

[0035] Preferably, as shown in Figure 4 in the embodiment, the first end of the propelling belt member 9 is arranged on the connecting beam 10, and the second end of the propelling belt member 9 is connected to the bottom of the middle support part. Based on the above-mentioned "the first side support assembly and the second side support assembly can be formed as a common chassis through the connecting beam 10, and the bottom of the middle support part can be regarded as another chassis", it can be understood that the two ends of the propelling belt member 9 are respectively arranged on the two chassis, and the extension and retraction of the propelling belt member 9 can drive one of the chassis to move. In the embodiment, one propelling belt member 9 is arranged on each side of the chassis of the middle support part, and the two propelling belt members 9 can simultaneously drive the first side support assembly and the second side support assembly to move forward.

[0036] Preferably, as shown in Figures 1 to 4 in the embodiment, in order to enable the first side support assembly and the second side support assembly to form an integral whole while ensuring the flexible movement of the middle part and the two side parts, the bottom of the first side support assembly, the connecting beam 10 and the bottom of the second side support assembly surround the bottom of the middle support part.

[0037] Preferably, as shown in Figure 1 and Figure 2As shown, in the embodiment, the top of the middle support part and the top of the side support part are respectively provided with a middle top beam 2 and a side top beam 1, the first end of the supporting telescopic part 5 and the first end of the telescopic square box 6 are connected with the middle top beam 2 and the side top beam 1 respectively, and the second end of the supporting telescopic part 5 and the second end of the telescopic square box 6 are respectively arranged at the bottom of the middle support part and the bottom of the side support part. The middle top beam 2 and the side top beam 1 serve as the top surface of the middle support part and the side support part, and can abut against the goaf roof to achieve the effect of temporary support. The telescoping of the supporting telescopic part 5 can drive the middle top beam 2 and the side top beam 1 to move away from or abut against the goaf roof.

[0038] Preferably, as shown in the embodiment, Figures 1 to 3 As shown, in the embodiment, the top of the middle support part and the top of the side support part are respectively provided with a middle top beam 2 and a side top beam 1, the first end of the supporting telescopic part 5 and the first end of the telescopic square box 6 are connected with the middle top beam 2 and the side top beam 1 respectively, and the second end of the supporting telescopic part 5 and the second end of the telescopic square box 6 are respectively arranged at the bottom of the middle support part and the bottom of the side support part. The middle top beam 2 and the side top beam 1 serve as the top surface of the middle support part and the side support part, and can abut against the goaf roof to achieve the effect of temporary support. The telescoping of the supporting telescopic part 5 can drive the middle top beam 2 and the side top beam 1 to move away from or abut against the goaf roof.

[0039] Preferably, as shown in the embodiment, Figures 1 to 3 As shown, in the embodiment, the side of the side support part is provided with a deflection adjusting square box 11, which is telescopically arranged in the side support part, and the telescoping direction of the deflection adjusting square box 11 is perpendicular to the moving direction of the fan-shaped surface support. The structure of the deflection adjusting square box 11 is similar to that of the lifting bottom assembly, except that the arrangement direction is different. The deflection adjusting square box 11 can be extended as needed to support the side of the passage and correct the deviation of the equipment during forward movement.

[0040] Preferably, as shown in the embodiment, Figure 1 and Figure 2 As shown, in the embodiment, the first side support assembly and the second side support assembly each include a side top beam 1, the side top beam 1 of the first side support assembly and the side top beam 1 of the second side support assembly each form an L-shaped structure, the two L-shaped structures are symmetrically arranged to form a U-shaped structure, and the middle top beam 2 of the middle support part is arranged inside the U-shaped structure. Through the symmetrically arranged two L-shaped structures, the side top beam 1 of the first side support assembly and the side top beam 1 of the second side support assembly can form an integral whole, avoiding the separation of the first side support assembly and the second side support assembly left and right, while increasing the contact area with the goaf roof and increasing the support strength.

[0041] Preferably, as shown in the embodiment, Figures 1 to 4As shown, in the embodiment, the fan-shaped support further comprises a side support part 12, which is adjustably arranged at the bottom of the side support part by a second adjusting part 14. The side support part 12 can be extended or retracted as needed, and when extended, the contact area with the ground is increased, so that the stability of the device is better.

[0042] Preferably, as Figures 1 to 3 As shown, in the embodiment, in order to further increase the supporting force, the number of the supporting telescopic parts 5 is multiple, and the multiple supporting telescopic parts 5 are arranged around the telescopic square box 6. In addition, the telescopic square box 6 can play a role in protecting the oil cylinder, avoiding damage to the oil cylinder caused by side pressure and tilting of the top beams at the middle and both sides to one side.

[0043] The working process of the fan-shaped support is as follows: the two first bottom lifting parts 7 are extended, so that the end parts of the first side support assembly and the second side support assembly are lifted, thereby reducing the frictional resistance during movement, and then the advancing driving part 9 is extended, and the first side support assembly and the second side support assembly are moved forward by the driving of the advancing driving part 9, at this time, the supporting telescopic parts 5 of the side support part are retracted (the telescopic square box 6 is retracted at the same time), so that the top surface of the side support part is separated from the roof of the goaf, and after reaching the set position, the two first bottom lifting parts 7 are retracted, so that the bottom of the side support part is in contact with the ground, the supporting telescopic parts 5 of the side support part are extended, and the side top beam 1 of the side support part is abutted against the roof of the goaf, thereby playing a role in supporting the roadway. When the first side support assembly and the second side support assembly move, the side cantilever beam 3 and the side support part 12 are retracted at the same time, and after reaching the position, they can be extended as needed. Then the second bottom lifting part 8 is extended, so that the end part of the middle support part is lifted, thereby reducing the frictional resistance, and then the advancing driving part 9 is retracted, and the middle support part is moved forward by the driving of the advancing driving part 9, at this time, the supporting telescopic parts 5 of the middle support part are retracted (the telescopic square box 6 is retracted at the same time), so that the top surface of the middle support part is separated from the roof of the goaf, and after reaching the set position, the bottom lifting assembly of the middle support part is retracted, so that the bottom of the middle support part is in contact with the ground, the supporting telescopic parts 5 of the middle support part are extended, and the top surface of the middle support part is abutted against the roof of the goaf, thereby playing a role in supporting the roadway. When the middle support part moves, the middle cantilever beam 4 is retracted, and after reaching the position, it can be extended as needed. Then the action is repeated, and the device is moved forward week after week, and cooperates with other devices to withdraw the hydraulic support.

[0044] The fan-shaped support can temporarily support the roof of the goaf through cooperation of the middle support part, the side support part and the walking part. The middle support part and the side support part are supported by cooperation of the supporting telescopic part and the telescopic square box, so that the strength is better than that of the four-bar linkage mechanism in the prior art, and the middle support part and the side support part are not easily stuck, and can realize more flexible lifting. The first side support assembly and the second side support assembly are assembled together, so that the whole device is not separated left and right under the action of pressure, has sufficient width, has excellent self-balancing performance under the pressure of the roof of the goaf, and is not easily torn. Cooperation of the middle support part and the side support part makes the middle part and the two sides move flexibly and not be limited and stuck. The middle support part and the side support part can walk alone through the driving of the walking part, and the frictional resistance of the chassis to the ground is greatly reduced when walking, so that walking can realize more excellent and flexible arrangement.

[0045] Finally, it should be noted that: the above-described embodiments are merely specific embodiments of the present application, used to illustrate the technical solutions of the present application, and are not limiting, the protection scope of the present application is not limited thereto, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand: any person skilled in the art in the technical field of the present application can modify or easily think of changes to the technical solutions recorded in the foregoing embodiments within the technical range disclosed by the present application, or replace some technical features; and these modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope of the claims.

Claims

1. A fan-shaped support, characterized in that, The fan-shaped support includes a central support section, a side support section, and a traveling section. The side support section includes a first side support assembly and a second side support assembly assembled as one unit, with the first side support assembly and the second side support assembly respectively disposed on both sides of the central support section. Both the central support section and the side support section include a supporting telescopic member and a telescopic box, with the supporting telescopic member disposed on both sides of the telescopic box. The traveling section includes a bottom-lifting assembly and a propulsion drive component. The bottom-lifting assembly is disposed at the bottom of the central support section and the side support section, and the propulsion drive component connects the central support section and the side support section.

2. The sector-shaped support according to claim 1, characterized in that, The side support portion also includes a connecting beam located at the bottom of the side support portion. The bottom lifting assembly includes a first bottom lifting member disposed on the connecting beam and a second bottom lifting member disposed on the intermediate support portion. The bottom lifting assembly is capable of extending and retracting in the vertical direction to raise the bottom of the intermediate support portion and the bottom of the side support portion.

3. The sector-shaped support according to claim 2, characterized in that, The first end of the propulsion drive is disposed on the connecting beam, and the second end of the propulsion drive is connected to the bottom of the intermediate support portion.

4. The sector-shaped support according to claim 2, characterized in that, The bottom of the first side support assembly, the connecting beam, and the bottom of the second side support assembly surround the bottom of the intermediate support portion.

5. The sector-shaped support according to claim 1, characterized in that, The top of the intermediate support section and the top of the side support section are respectively provided with an intermediate top beam and a side top beam. The first end of the support telescopic member and the first end of the telescopic box are respectively connected to the intermediate top beam and the side top beam. The second end of the support telescopic member and the second end of the telescopic box are respectively provided at the bottom of the intermediate support section and the bottom of the side support section.

6. The sector-shaped support according to claim 5, characterized in that, The top of the intermediate support section and the top of the side support section also include an intermediate cantilever beam and a side cantilever beam, respectively. The intermediate cantilever beam and the side cantilever beam are respectively positioned at the ends of the intermediate top beam and the side top beam by means of a first adjusting member.

7. The sector-shaped support according to claim 6, characterized in that, An adjustment box is provided on the side of the side support. The adjustment box is telescopically mounted on the side support, and the telescopic direction of the adjustment box is perpendicular to the moving direction of the fan-shaped support.

8. The sector-shaped support according to claim 6, characterized in that, Both the first side support assembly and the second side support assembly include a side top beam. The side top beams of the first side support assembly and the second side support assembly are both formed into an L-shaped structure. The two L-shaped structures are symmetrically arranged to form a U-shaped structure. The middle top beam of the middle support part is disposed inside the U-shaped structure.

9. The sector-shaped support according to claim 1, characterized in that, The fan-shaped support also includes a side support portion, which is positioned at the bottom of the side support portion by means of a second adjusting member.

10. The sector-shaped support according to claim 1, characterized in that, The number of the supporting telescopic components is multiple, and the multiple supporting telescopic components are arranged around the telescopic box.

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