CN115405337B

CN115405337B - Track units, tracks, support brackets and advance support systems

Info

Publication number: CN115405337B
Application number: CN202110578039.1A
Authority: CN
Inventors: 宋如海; 魏民; 宋凯; 韩鲁; 陈朋; 顾斌
Original assignee: Shandong Yanzhou Coal Mining Heibao Mining Equipment Co ltd
Current assignee: Shandong Yanzhou Coal Mining Heibao Mining Equipment Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2025-02-11
Anticipated expiration: 2041-05-26
Also published as: CN115405337A

Abstract

The invention discloses a track unit, a track, a support bracket and an advanced support system, wherein the track unit comprises a first section and a second section, and the first section is provided with a first connecting structure; the first section is hinged with the second section and can generate relative swing along the height direction of the roadway, and the first connecting structure of one track unit can be detachably connected with the second connecting structure of the other track unit so as to enable the two track units to be detachably butted with each other. The first section and the second section of the track unit can swing mutually, so that the problem of track bending or damage in the related art is effectively solved, and the conveying support is smoother and has better efficiency.

Description

Rail unit, rail, support bracket and advanced support system

Technical Field

The invention relates to the technical field of mining, in particular to a track unit, a track, a support bracket and an advanced support system.

Background

In order to prevent deformation, movement and damage of surrounding rock of a roadway caused by superposition of advanced supporting pressure of the coal face and supporting pressure in an inclined direction, the roadway of the coal face needs to be supported in an advanced reinforcing mode. Along with the forward pushing of the coal face, the advance support bracket needs to continuously move forward and be timely supported on the top plate and the side wall of the roadway.

One or more rails are generally used in the related art as a guide for forward conveying of the stent. The track can be hoisted on the top plate of the roadway or supported on the bottom plate of the roadway. However, since the roof or floor of the roadway is not flat, but is often uneven, the track is bent and even damaged. When the support is conveyed forwards along the track, the support is conveyed to the bending position of the track and is often blocked, so that the problem that human intervention is needed is solved, and the support efficiency is further affected.

Disclosure of Invention

The embodiment of the invention provides a track unit, a track, a support bracket and an advanced support system which can relatively swing according to the uneven height of a roadway so as to solve the problem of track bending or damage.

The track unit is applied to an advanced support system and used for conveying a support forwards, and comprises a first section and a second section, wherein the first section is provided with a first connecting structure, the second section is provided with a second connecting structure, the first section is hinged with the second section and can generate relative swinging along the height direction of a roadway, and the first connecting structure of one track unit can be detachably connected with the second connecting structure of the other track unit so that the two track units can be detachably butted with each other.

According to some embodiments of the invention, the first section comprises a first side facing away from the second section, the second section comprises a second side facing away from the first section, the first side being disposed opposite the second side;

When two rail units are in butt joint, the first side face of one rail unit is overlapped with the second side face of the other rail unit.

According to some embodiments of the invention, the first connecting structure is protruding from the first side surface, and the second connecting structure is recessed from the second side surface;

The first connecting structure is detachably accommodated in the second connecting structure.

According to some embodiments of the invention, the portion of the first connection structure remote from the first section comprises a conical portion;

when the first connecting structure is inserted into the second connecting structure, the outer conical surface of the conical part can be matched with the inner wall surface of the second connecting structure so as to align the first connecting structure and the second connecting structure.

According to some embodiments of the invention, the first section further comprises an inclined surface arranged opposite to the first side surface along the conveying direction of the rail unit; the second section further comprises a third side surface opposite to the second side surface along the conveying direction of the track units;

When the bottom surface of the first section and the bottom surface of the second section are level, the inclined surface and the third side surface form an included angle.

According to some embodiments of the invention, the included angle is between 5 degrees and 6 degrees.

The track provided by the embodiment of the invention comprises a plurality of track units, wherein the first connecting structure of one track unit of two adjacent track units can be detachably connected with the second connecting structure of the other track unit, so that the two track units are detachably butted with each other.

The support bracket comprises a bracket body and the track unit, wherein the second section of the track unit is fixedly connected to the bracket body.

According to some embodiments of the invention, the frame comprises:

The top beam can be supported on the top plate of the roadway;

The bottom beam is connected with the top beam and can be supported on a bottom plate of a roadway;

A side support assembly movably connected to the top beam and capable of being supported on the side walls of the roadway, and

And the driving mechanism is connected with the top beam and the side supporting component and is used for driving the side supporting component to move.

According to some embodiments of the invention, the side support assembly comprises a movable member movably connected to the top beam and a support member hinged to the movable member;

when the driving mechanism works, the supporting piece can be driven to move towards the side wall direction of the roadway, and the supporting piece drives the movable piece to move relative to the top beam.

According to some embodiments of the invention, the drive mechanism comprises a hydraulic cylinder, both ends of which are hinged to the top beam and to the support, respectively.

According to some embodiments of the invention, the movable member is hinged to the top beam at one end thereof opposite to the support member.

According to some embodiments of the invention, the bottom beam comprises a support cylinder and a base, one end of the support cylinder is rotatably connected to the top beam, and the other end is rotatably connected to the base;

an inserting part is arranged on one side of the base, and can be inserted into a bottom plate of a roadway;

The other end of the supporting oil cylinder and the other side of the base form a spherical pair.

According to some embodiments of the invention, the insert comprises a first insert and a second insert, the first insert being adjacent to a central region of the roadway relative to the second insert;

When the base is arranged on the bottom plate of the roadway, the first inserting portion is deeper than the second inserting portion in the depth of the bottom plate, so that the base is inclined to the inner side of the roadway.

The advance support system of the embodiment of the invention comprises:

a plurality of support brackets according to any one of the above, wherein a plurality of support brackets are arranged side by side, and two rail units of two adjacent support brackets are mutually butted to form a rail;

a transport seat suspended on the rail and capable of driving a support bracket in a contracted state to move along the rail, and

The driving mechanism is used for driving the transportation seat to move.

According to some embodiments of the invention, the drive mechanism comprises:

The power source is fixedly connected with the transportation seat;

a friction wheel which is in driving connection with the power source, wherein the outer peripheral surface of the friction wheel is abutted with the track;

When the power source works, the transportation seat is driven to move relative to the track by utilizing friction force between the friction wheel and the track.

According to some embodiments of the invention, the transport base is rotatably provided with a roller, and the roller is rollably connected to the rail.

One embodiment of the above invention has the following advantages or benefits:

The first section and the second section are hinged, and can swing relatively along the height direction of the roadway, and the first section and the second section which are hinged in a plurality of groups in the track can swing adaptively according to the height unevenness of the roadway, so that the track formed by the butt joint of the plurality of support brackets can adapt to the height unevenness of the top plate or the bottom plate of the roadway. Compared with one or more integral tracks adopted in the related art, the track is divided into the plurality of track units which can be mutually butted, and the first section and the second section of each track unit can mutually swing, so that the problem of track bending or damage in the related art is effectively solved, and the conveying support is smoother and has better efficiency.

Drawings

The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

Fig. 1 is a perspective view of a lead frame support system according to an embodiment of the present invention.

Fig. 2 shows a side view of a lead support system according to an embodiment of the present invention.

Fig. 3 shows a schematic diagram of the structure in the direction a in fig. 2.

Fig. 4 shows a perspective view of a support stent according to an embodiment of the present invention.

Fig. 5 shows a side view of a support stent according to an embodiment of the present invention.

Fig. 6 shows a perspective view of two support brackets of an embodiment of the invention positioned side by side and prior to docking.

Fig. 7 shows a side view of two support brackets of an embodiment of the invention positioned side by side and prior to docking.

Fig. 8 shows a perspective view of two support brackets according to an embodiment of the invention arranged side by side and in a docked position, wherein a drive mechanism and a transport base are also provided thereon.

Fig. 9 shows a side view of two support brackets according to an embodiment of the invention, arranged side by side and after docking, wherein a drive mechanism and a transport base are also provided thereon.

Fig. 10 is a perspective view showing the first and second sections of the support stent of the embodiment of the present invention after swinging about a hinge point.

Fig. 11 shows a side view of the first and second sections of the support stent of an embodiment of the present invention after swinging about a hinge point.

Fig. 12 is a schematic view showing the structure of the driving mechanism and the transport base according to the embodiment of the present invention.

Fig. 13 is a schematic view of a base structure according to an embodiment of the present invention.

Fig. 14 is a schematic view of another view of the base of the embodiment of the present invention.

Wherein reference numerals are as follows:

100. Support bracket

100A, stent in expanded state

100B, contracted state stent

101. Frame body

110. Top beam

111. Fixed beam

112. Telescopic beam

120. Bottom beam

121. Support cylinder

122. Base seat

1221. Insertion part

1221A, a first insertion part

1221B, a second insertion part

1222. Spherical structure

130. Side support assembly

131. Movable piece

132. Support member

140. Driving mechanism

400. Rail track

401. Rail unit

402. Guide rail

410. First section

411. First connecting structure

4111. Conical part

412. First side surface

413. Inclined surface

420. Second section

421. Second connecting structure

422. Second side surface

423. Third side surface

430. Included angle

440. Transport seat

441. Roller wheel

450. Driving mechanism

451. Power source

452. Friction wheel

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.

As shown in fig. 1 to 3, fig. 1 is a perspective view showing a fore support system according to an embodiment of the present invention. Fig. 2 shows a side view of a lead support system according to an embodiment of the present invention. Fig. 3 shows a schematic diagram of the structure in the direction a in fig. 2. The advanced support system according to the embodiment of the present invention includes a plurality of support brackets 100, a transport block 440, and a first driving mechanism 450. Each of the stent grafts 100 includes a contracted state and an expanded state, i.e., a plurality of stent grafts 100 are divided into a stent 100a in the expanded state and a stent 100b in the contracted state. The contracted stent 100b is smaller in size than the expanded stent 100a so that the contracted stent 100b can pass through the expanded stent 100 a.

The plurality of stent grafts 100 are arranged side by side, specifically, the plurality of stent grafts 100a in the expanded state are arranged side by side. Each support 100 is provided with a rail unit 401, and two rail units 401 of two adjacent support 100 can be butted with each other to form a rail 400. The track 400 extends along the length of the roadway. By means of the track 400, the stent 100b in the contracted state can be transported along the track 400 from the rear of the roadway to the front of the roadway through the plurality of stents 100a in the expanded state in sequence.

The transportation seat 440 is suspended from the rail 400, and the first driving mechanism 450 is used for driving the transportation seat 440 to move. The frame 100b in the contracted state can be connected to the transport base 440, and when the first driving mechanism 450 is operated, the transport base 440 moves along the track 400, so as to drive the frame 100b in the contracted state to be conveyed forward.

As shown in fig. 1 and 2, after the contracted stent 100b is transferred to the front of the roadway, the contracted stent 100b is converted into the expanded stent 100a to be supported by the roadway. The last of the plurality of expanded stents 100a is convertible to the contracted stent 100b and then the transport block 440 is also driven along the track 400 to the front of the roadway by the first drive mechanism 450. The support is continuously moved forward and is circularly supported by the circulating reciprocating manner.

As shown in fig. 4 to 7, fig. 4 is a perspective view showing a support bracket according to an embodiment of the present invention. Fig. 5 shows a side view of a support stent according to an embodiment of the present invention. Fig. 6 shows a perspective view of two support brackets of an embodiment of the invention positioned side by side and prior to docking. Fig. 7 shows a side view of two support brackets of an embodiment of the invention positioned side by side and prior to docking. The support bracket 100 of the embodiment of the invention comprises a bracket body 101 and a track unit 401, wherein the track unit 401 is fixedly connected to the bracket body 101.

The track unit 401 comprises a first section 410 and a second section 420. The first section 410 has a first connection structure 411. The second section 420 has a second connection structure 421, the first section 410 is hinged to the second section 420 and is capable of swinging relatively along the height direction of the roadway, and the first connection structure 411 of one track unit 401 is capable of being detachably connected to the second connection structure 421 of the other track unit 401, so that the two track units 401 are detachably abutted to each other.

Referring back to fig. 2, after the plurality of support frames 100 are arranged side by side, two adjacent track units 401 of two adjacent support frames 100 can be butted together, so that the plurality of track units 401 form a track 400. Specifically, the first connection structure 411 on one track unit 401 of two adjacent track units 401 can be connected with the second connection structure 421 of the other track unit 401 to enable the two adjacent track units 401 to be docked.

As shown in fig. 6, the track unit 401 may include two oppositely disposed guide rails 402. Since the track units 401 comprise a first section 410 and a second section 420 which are hinged, each rail 402 of one track unit 401 is also divided into two sections.

It is understood that one track unit 401 has two guide rails 402, and that the number of guide rails 402 may be one, three, or the like, by way of example only.

As shown in fig. 2, 10 and 11, fig. 10 is a perspective view showing the first and second sections of the support bracket according to the embodiment of the present invention after swinging about the hinge point. Fig. 11 shows a side view of the first and second sections of the support stent of an embodiment of the present invention after swinging about a hinge point. Because the first section 410 and the second section 420 are hinged and can swing relatively along the height direction of the roadway, the first section 410 and the second section 420 hinged by multiple groups of the rails 400 can swing adaptively according to the height of the roadway, so that the rails 400 formed by the support brackets 100 in the embodiment of the invention can adapt to the height of the top plate or the bottom plate of the roadway. Compared with one or more integral rails adopted in the related art, the embodiment of the invention divides the rail 400 into the plurality of rail units 401 which can be mutually abutted, and the first section 410 and the second section 420 of each rail unit 401 can mutually swing, so that the problem of rail bending or damage in the related art is effectively solved, and the conveying support is smoother and has better efficiency.

With continued reference to fig. 4-7, the first section 410 includes a first side 412 facing away from the second section 420, the second section 420 includes a second side 422 facing away from the first section 410, and the first side 412 is disposed opposite the second side 422. When two track units 401 are docked, the first side 412 of one track unit overlaps the second side 422 of the other track unit.

By overlapping the first side 412 of one of the two abutted rail units 401 with the second side 422 of the other rail unit, a flush joint of the two abutted rail units 401 can be achieved. Thus, except for the hinge points of the first section 410 and the second section 420, other parts of the track 400 in the embodiment of the invention are flat tracks, so that smooth transmission is ensured.

The first connecting structure 411 is protruding from the first side 412, and the second connecting structure 421 is recessed from the second side 422. The first connection structure 411 is detachably accommodated in the second connection structure 421.

In the present embodiment, since the first connecting structure 411 is protruding from the first side 412 and the second connecting structure 421 is recessed from the second side 422, the first connecting structure 411 can be accommodated in the second connecting structure 421 after the two track units 401 are abutted. That is, after the two track units 401 are docked, the first connection structure 411 and the second connection structure 421 are not exposed, but are hidden in the two track units 401. Thus, the first driving mechanism 450, the transport base 440, and the contracted state of the rack 100b, which travel on the rail 400, do not interfere with the movement of the first connection structure 411 and the second connection structure 421.

As shown in fig. 6, a portion of the first connection structure 411 remote from the first segment 410 includes a conical portion 4111. When the first connection structure 411 is inserted into the second connection structure 421, the outer conical surface of the conical portion 4111 can be engaged with the inner wall surface of the second connection structure 421 to align the first connection structure 411 and the second connection structure 421.

In the present embodiment, by designing the first connection structure 411 to have the conical portion 4111, when the two track units 401 are butted, even if deviation occurs, the first connection structure 411 and the second connection structure 421 can be aligned with each other by the engagement of the conical portion 4111 with the inner wall surface of the second connection structure 421, and finally, the two track units 401 are butted with each other with a seam.

It should be noted that, the specific detachable structures of the first connection structure 411 and the second connection structure 421 may be any well-known designs in the art, such as bolting, etc., which are not listed here.

As shown in fig. 5, the first section 410 further includes an inclined surface 413 disposed opposite to the first side surface 412 in the conveying direction of the rail unit 401, and the second section 420 further includes a third side surface 423 disposed opposite to the second side surface 422 in the conveying direction of the rail unit. When the bottom surface of the first section 410 and the bottom surface of the second section 420 are level, the inclined surface 413 and the third side surface 423 form an included angle 430.

Preferably, the angle of the included angle 430 may be 5 degrees to 6 degrees, but is not limited thereto.

When the track of the embodiment of the present invention is disposed in a roadway where the top plate and/or the bottom plate are flat, the included angle 430 between the inclined surface 413 and the third side surface 423 is a predetermined angle, for example, 5 degrees to 6 degrees.

As shown in fig. 11, when the first segment 410 and the second segment 420 swing relatively, the inclined surface 413 and the third side surface 423 abut against each other, so that the angle of the relative swing of the first segment 410 and the second segment 420 can be limited, and the influence on the normal use of the track due to the overlarge swing angle is avoided.

As shown in fig. 8, 9 and 12, fig. 8 is a perspective view of two support brackets according to an embodiment of the present invention, which are arranged side by side and are in a docked state, wherein a driving mechanism and a transport base are further provided thereon. Fig. 9 shows a side view of two support brackets according to an embodiment of the invention, arranged side by side and after docking, wherein a drive mechanism and a transport base are also provided thereon. Fig. 12 is a schematic view showing the structure of the driving mechanism and the transport base according to the embodiment of the present invention. The transportation seat 440 is suspended from the rail 400, and the first driving mechanism 450 is used for driving the transportation seat 440 to move. The frame 100b in the contracted state can be connected to the transport base 440, and when the first driving mechanism 450 is operated, the transport base 440 moves along the track 400, so as to drive the frame 100b in the contracted state to be conveyed forward.

The first driving mechanism 450 includes a power source 451 and a friction wheel 452, and the power source 451 is fixedly connected to the transportation seat 440. The friction wheel 452 is drivingly connected to the power source 451, and an outer peripheral surface of the friction wheel 452 abuts the rail 400. When the power source 451 is operated, the transportation base 440 is driven to move with respect to the rail 400 by the frictional force between the friction wheel 452 and the rail 400.

Specifically, the rail 402 is sandwiched between two friction wheels 452. The carriage 440 is driven to move relative to the rail 402 by friction between the two friction wheels 452 and the opposite sides of the rail 402, respectively.

In one embodiment, the power source 451 may be a motor, but is not limited thereto.

As shown in fig. 3 and 12, fig. 12 is a schematic structural view of a driving mechanism and a transport base according to an embodiment of the present invention. The transport base 440 is rotatably provided with a roller 441, and the roller 441 is rollably connected to the rail 402 of the track 400. By designing the rolling friction between the transport block 440 and the rail 400, the friction between the transport block 440 and the rail 402 of the rail 400 is significantly reduced.

It is understood that the number of rollers 441 may be designed according to the number of guide rails 402 by those skilled in the art, and the present invention is not particularly limited.

Referring back to fig. 3, the frame 101 includes a top beam 110, a bottom beam 120, a side support assembly 130, and a second drive mechanism 140. The top beam 110 can be supported to the roof of the roadway. The bottom beams 120 are connected to the top beams 110 and can be supported to the floor of the roadway. The side support assemblies 130 are movably connected to the header 110 and can be supported on the sides of the roadway. A second drive mechanism 140 is coupled to the header 110 and the side support assemblies 130 for driving movement of the side support assemblies 130.

When the support bracket 100 of the embodiment of the present invention is supported in a roadway, the bottom beams 120 are supported on the bottom plate of the roadway and the top beams 110 are supported, so that the top beams 110 can be supported on the top plate of the roadway. At the same time, the side support assemblies 130 are driven by the second driving mechanism 140 to be supported on the sides of the roadway.

By adopting the technical means that the side support assembly 130 is movably connected to the top beam 110 and can be supported on the side wall of the roadway, and the second driving mechanism 140 is connected to the top beam 110 and the side support assembly 130 and is used for driving the side support assembly 130 to move, the vertical stress of the roadway top plate acting on the top beam 110 can be sequentially transmitted to the side wall of the roadway through the second driving mechanism 140 and the side support assembly 130. At the same time, horizontal stresses acting on the side support assemblies 130 by the sides of the roadway can be transferred to the roof of the roadway sequentially through the second drive mechanism 140 and the top beams 110. In this way, the vertical stress and the horizontal stress of the roadway can offset a part of the vertical stress and the horizontal stress of the roadway under the action of the second driving mechanism 140 and the side supporting component 130, so that the supporting bracket of the embodiment of the invention is not easy to bend or damage by the stress in the roadway, the service life is prolonged, and the supporting effect is improved.

With continued reference to fig. 3, the number of side support assemblies 130 is two, and each side support assembly is movably connected to two opposite ends of the top beam 110 for supporting two sides of the roadway.

The side support assembly 130 includes a movable member 131 and a support member 132, the movable member 131 being movably coupled to the top beam 110, the support member 132 including a coupling end 1321 and a free end 1322, the coupling end 1321 being hinged to the movable member 131, the free end 1322 being naturally drooping.

When the second driving mechanism 140 works, the supporting member 132 is hinged to the movable member 131, so that the supporting member 132 can rotate around the hinge point relative to the movable member 131, and the supporting member 132 can move towards the side wall of the roadway. During the movement of the supporting member 132, the supporting member 132 drives the movable member 131 to move relative to the top beam 110.

In this embodiment, the structure of the side supporting component 130 is specifically limited, and the supporting component 132 is hinged to the movable component 131 and the movable component 131 is movably connected to the top beam 110, so that the supporting component 132 can move along the width direction of the roadway after being driven by the second driving mechanism 140, thereby ensuring that one side surface of the supporting component 132 can be integrally attached to the side wall of the roadway, and increasing the contact area between the supporting component 132 and the side wall.

Further, one end of the movable member 131 opposite to the supporting member 132 is hinged to the top beam 110, i.e. both ends of the movable member 131 are respectively hinged to the top beam 110 and the supporting member 132.

When the second driving mechanism 140 is operated, the two supporting members 132 are respectively close to the two sides of the roadway in the direction away from each other. The two movable members 131 swing around respective hinge points in the direction of the roof of the roadway.

Of course, it is understood that the end of the movable member 131 opposite the support member 132 may also be telescopically coupled to the top beam 110. Specifically, one end of the movable member 131 is telescopically coupled to the top beam 110, and the other end of the movable member 131 is hinged to the support member 132.

When the second driving mechanism 140 is operated, the two supporting members 132 are respectively close to the two sides of the roadway in the direction away from each other. The two movable members 131 are also moved in a direction away from each other.

In one embodiment, the second driving mechanism 140 may include a hydraulic cylinder, both ends of which are hinged to the top beam 110 and the supporting member 132, respectively.

When the telescopic rod of the hydraulic cylinder is extended, the two supporting pieces 132 are respectively close to the two sides of the roadway in a direction away from each other, and when the telescopic rod of the hydraulic cylinder is retracted, the two supporting pieces 132 are moved in a direction close to each other.

With continued reference to fig. 3, the header 110 may include a fixed beam 111 and a telescoping beam 112, the telescoping beam 112 being telescopically coupled to the fixed beam 111. The telescoping beams 112 can telescope relative to the fixed beams 111 so that the length of the top beams 110 can be lengthened or shortened to accommodate roadways of different widths.

The second driving mechanism 140 and the side support assembly 130 are connected to the telescopic beam 112, and can move along with the telescopic beam 112.

The second section 402 of the track unit 401 is fixedly connected to the fixed beam 111.

Further, the support bracket 100 further includes a locking member for defining the relative positions of the fixed beam 111 and the telescopic beam 112. After the telescopic beam 112 is extended or retracted a certain distance with respect to the fixed beam 111, the entire length of the top beam 110 can be defined by the locking action of the locking member.

In one embodiment, the locking member may be a pin. The fixed beam 111 and the telescopic beam 112 are respectively provided with corresponding pin holes, and the pin shafts are inserted into the corresponding pin holes of the fixed beam 111 and the telescopic beam 11 to lock the positions of the fixed beam 111 and the telescopic beam 11.

Of course, the locking member is not limited to the pin shaft, and may be other components with locking functions, which are not listed here.

In one embodiment, the number of telescopic beams 112 is two, and they are respectively connected to two opposite ends of the fixed beam 111 in a telescopic manner. The two second driving mechanisms 140 are respectively connected to the two telescopic beams 112, and the two side support assemblies 130 are respectively connected to the two telescopic beams 112.

With continued reference to fig. 3, the bottom beam 120 includes a support cylinder 121 and a base 122, wherein one end of the support cylinder 121 is rotatably connected to the top beam 110, and the other end is rotatably connected to the base 122. An insertion portion 1221 is provided on one side of the base 122, and the insertion portion 1221 can be inserted into a floor of a roadway. The base 122 is provided with an insertion portion 1221, which can be firmly provided on the floor of the roadway.

In this embodiment, two ends of the support cylinder 121 are rotatably connected to the top beam 110 and the base 122, respectively, so that a supporting person can adjust an angle of the support cylinder 121 with respect to a vertical direction. Specifically, the inclination angle of the inward inclination of the support cylinder 121 may be between 7 ° and 11 °, so as to improve the stability of the bottom beam 120.

As shown in fig. 13 and 14, fig. 13 is a schematic structural view of a base according to an embodiment of the present invention from one view. Fig. 14 is a schematic view of another view of the base of the embodiment of the present invention. The support cylinder 121 and the base 122 form a spherical pair. Specifically, a spherical structure 1222 is disposed on a side of the base 122 facing away from the roadway floor, and an end of the support cylinder 121 and the spherical structure 1222 form a spherical pair.

The insertion portion 1221 includes a first insertion portion 1221a and a second insertion portion 1221b, and the first insertion portion 1221a is located near an intermediate region of the roadway relative to the second insertion portion 1221 b. When the base 122 is disposed on the floor of the roadway, the first insertion portion 1221a is inserted deeper into the floor than the second insertion portion 1221b, so that the base 122 is inclined toward the inside of the roadway.

In the supporting process, the base 122 may be disposed at a junction of a side wall and a bottom plate of the roadway, that is, the insertion portion 1221 of the base 122 is inserted into the bottom plate, and a side surface of the base 122 abuts against the side wall. When the lateral side is horizontally stressed, the first insertion portion 1221a is inserted deeper into the bottom plate than the second insertion portion 1221b, so that the base 122 may be inclined toward the inside of the roadway to obliquely abut against the lateral side. Meanwhile, the base 122 is disposed obliquely inward, and since the support cylinder 121 and the base 122 form a spherical pair, a reaction force of the base 122 received by the support cylinder 121 can be transmitted along an axial direction of the support cylinder 121. In this way, the horizontal stress of the side walls can be avoided to press the support cylinder 121.

In one embodiment, the first insertion portion 1221a includes an inverted conical structure, and the second insertion portion 1221b includes a cylindrical structure, but is not limited thereto.

In summary, the track unit, the track, the support bracket and the advanced support system according to the embodiment of the invention have the following advantages and beneficial effects:

Because the first section 410 and the second section 420 are hinged and can swing relatively along the height direction of the roadway, the first section 410 and the second section 420 hinged by multiple groups of the rails 400 can swing adaptively according to the height unevenness of the roadway, so that the rails 400 formed by the butt joint of the support brackets 100 in the embodiment of the invention can adapt to the height unevenness of the top plate or the bottom plate of the roadway. Compared with one or more integral rails adopted in the related art, the embodiment of the invention divides the rail 400 into the plurality of rail units 401 which can be mutually abutted, and the first section 410 and the second section 420 of each rail unit 401 can mutually swing, so that the problem of rail bending or damage in the related art is effectively solved, and the conveying support is smoother and has better efficiency.

In the inventive embodiments, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, the term "plurality" then referring to two or more unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, as they are used in a fixed or removable connection, or as they are integral with one another, as they are directly or indirectly connected through intervening media. The specific meaning of the above terms in the embodiments of the invention will be understood by those skilled in the art according to the specific circumstances.

In the description of the embodiments of the invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the invention and to simplify the description, and do not indicate or imply that the devices or units referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the invention.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the invention and is not intended to limit the embodiment of the invention, and various modifications and variations can be made to the embodiment of the invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A pre-support system, which comprises a support frame, characterized by comprising the following steps:

A plurality of support brackets (100), a plurality of the support brackets (100) are arranged side by side, the support brackets (100) comprise a frame body (101) and a track unit (401), the track unit (401) comprises a first section (410) and a second section (420), the second section (420) is fixedly connected to the frame body (101), the first section (410) is provided with a first connecting structure (411), the second section (420) is provided with a second connecting structure (421), the first section (410) is hinged with the second section (420) and can generate relative swinging along the height direction of a roadway, and the first connecting structure (411) of the track unit (401) of one support bracket (100) can be detachably connected with the second connecting structure (421) of the track unit (401) of the other support bracket (100) so that the two track units (401) can be detachably connected with each other to form a butt joint (400);

A transport base (440) suspended from the rail (400) and capable of driving a support bracket in a contracted state to move along the rail (400), and

A first driving mechanism (450) for driving the transportation seat (440) to move.

2. The advance support system of claim 1, wherein the first section (410) includes a first side (412) facing away from the second section (420), the second section (420) includes a second side (422) facing away from the first section (410), the first side (412) being disposed opposite the second side (422);

when two of the rail units are docked, the first side (412) of one of the rail units is arranged to overlap the second side (422) of the other rail unit.

3. The advance support system of claim 2, wherein the first connection structure (411) is protruding from the first side (412), and the second connection structure (421) is recessed from the second side (422);

the first connecting structure (411) is detachably accommodated in the second connecting structure (421).

4. A forepoling system according to claim 3, characterized in that the portion of the first connection structure (411) remote from the first section (410) comprises a conical portion (4111);

When the first connection structure (411) is inserted into the second connection structure (421), an outer conical surface of the conical portion (4111) can be mated with an inner wall surface of the second connection structure (421) to align the first connection structure (411) and the second connection structure (421).

5. The advance support system of claim 2, wherein the first section (410) further comprises an inclined surface (413) disposed opposite the first side surface (412) in the direction of conveyance of the track unit, and wherein the second section (420) further comprises a third side surface (423) disposed opposite the second side surface (422) in the direction of conveyance of the track unit;

When the bottom surface of the first section (410) and the bottom surface of the second section (420) are level, the inclined surface (413) and the third side surface (423) form an included angle (430).

6. The advance support system of claim 5, wherein the included angle (430) is between 5 degrees and 6 degrees.

7. The advance support system of claim 1, wherein the frame (101) comprises:

a top beam (110) which can be supported on the roof of the roadway;

a bottom beam (120) connected to the top beam (110) and supportable on a floor of a roadway;

a side support assembly (130) movably connected to the header (110) and capable of being supported on the sides of the roadway, and

And the second driving mechanism (140) is connected with the top beam (110) and the side support assembly (130) and is used for driving the side support assembly (130) to move.

8. The advance support system of claim 7, wherein the side support assembly (130) comprises a moveable member (131) and a support member (132), the moveable member (131) being movably connected to the top beam (110), the support member (132) being hinged to the moveable member (131);

when the second driving mechanism (140) works, the supporting piece (132) can be driven to move towards the side wall direction of the roadway, and the supporting piece (132) drives the movable piece (131) to move relative to the top beam (110).

9. The advance support system of claim 8, wherein the second drive mechanism (140) comprises a hydraulic cylinder with two ends hinged to the header (110) and the support (132), respectively.

10. The advance support system of claim 8, wherein an end of the moveable member (131) opposite the support member (132) is hinged to the top beam (110).

11. The advance support system of claim 7, wherein the bottom beam (120) includes a support cylinder (121) and a base (122), one end of the support cylinder (121) is rotatably connected to the top beam (110), and the other end is rotatably connected to the base (122);

An insertion part (1221) is arranged on one side of the base (122), and the insertion part (1221) can be inserted into a bottom plate of a roadway;

the other end of the supporting oil cylinder (121) and the other side of the base (122) form a spherical pair.

12. The advance support system of claim 11, wherein the insertion portion (1221) includes a first insertion portion (1221 a) and a second insertion portion (1221 b), the first insertion portion (1221 a) being proximate to a middle region of a roadway relative to the second insertion portion (1221 b);

When the base (122) is disposed on the floor of the roadway, the first insertion portion (1221 a) is inserted deeper into the floor than the second insertion portion (1221 b) is, so that the base (122) is inclined toward the inside of the roadway.

13. The advance support system of claim 1, wherein the first drive mechanism (450) comprises:

A power source (451) fixedly connected to the transport base (440);

a friction wheel (452) drivingly connected to the power source (451), the outer peripheral surface of the friction wheel (452) being in contact with the rail (400);

When the power source (451) is operated, the transportation seat (440) is driven to move relative to the rail (400) by using the friction force between the friction wheel (452) and the rail (400).

14. The advance support system of claim 1, wherein the transport base (440) is rotatably provided with a roller (441), the roller (441) being rollably connected to the rail (400).