CN218759978U - Coal mine underground roadway movable crossing transshipment portal support - Google Patents

Abstract

The application provides a portable transshipment portal frame of strideing in colliery underworkings, include: a crawler movement assembly and a hoisting assembly; the crawler movement assembly comprises two support frames and two crawler movement units which are arranged in parallel relatively; the two crawler moving units are used for synchronously moving relative to the ground of the underground coal mine roadway, and each crawler moving unit is provided with a support frame; the hoisting assembly comprises a telescopic upright post, a supporting top plate and a hanging unit; the telescopic stand column is vertically arranged at the top of the support frame, the support top plate is horizontally arranged at the top of the telescopic stand column, and the hanging unit is arranged on the lower surface of the support top plate and used for hanging the anchor rod drilling machine. The continuous mining machine and the anchor rod drilling machine can simultaneously carry out excavation and anchoring operation, and the excavation efficiency of the underground coal mine roadway is improved.

Description

Coal mine underground roadway movable crossing transshipment portal support

Technical Field

The application relates to a movable type crossing transshipment supporting technology, in particular to a movable type crossing transshipment portal support for an underground coal mine roadway.

Background

At present, coal mine underground roadway excavation equipment is commonly provided with several types of equipment such as an excavation and anchoring integrated machine, a fully-mechanized excavating machine, a continuous mining machine and the like. Particularly, the tunneling and anchoring integrated machine greatly improves the mechanical degree of tunneling and anchoring of a coal mine underground roadway, reduces the labor intensity and the construction efficiency of workers to a certain extent, but is not suitable for the construction operation of a few thin seam roadways, small end face roadways and roadways with complex geological conditions due to larger overall volume and heavier weight of the whole set of equipment; the development machine is a short-term comprehensive mechanical development machine, and is comprehensive mechanical equipment integrating multiple functions of development, rock loading, coal transportation, even support and nailing. Around the development of supporting equipment of the tunneling machine, at present, due to the limitations of the design of the tunneling machine and the construction mode of cantilever cutting, a better scheme for efficiently matching tunneling and supporting does not exist, and in order to realize the safe operation of a roadway, the supporting can only depend on manual operation at present, so that the starting of the tunneling machine is generally short, and the tunneling efficiency is also low; the continuous mining machine is comprehensive tunneling and short-wall mining equipment, integrates cutting, walking, transferring and spraying dust suppression, and has high cutting efficiency. Therefore, compared with an excavation and anchoring integrated machine and a heading machine, the continuous mining machine is widely applied to the heading process of the underground roadway of the coal mine.

In addition, the anchor rod drilling machine is also called as an anchor rod drilling machine in some places, is a drilling tool in the anchor rod supporting work of a coal mine tunnel, and has outstanding advantages in the aspects of improving the supporting effect, reducing the supporting cost, accelerating the tunnel forming speed, reducing the auxiliary transportation amount, lightening the labor intensity, improving the tunnel section utilization rate and the like. Therefore, the jumbolter is often used together with a continuous mining machine for supporting and driving a coal mine underground roadway. However, the phenomenon of vehicle-crossing inevitably exists when the continuous mining machine and the anchor rod drilling machine operate in the underground coal mine roadway, the vehicle-crossing is realized in the underground coal mine roadway by the continuous mining machine and the anchor rod drilling machine, the width of the underground coal mine roadway at least reaches more than 6.5 meters, the actual width of the underground coal mine roadway is mostly designed to be within 5 meters, especially, a mine area with a unstable roof is formed, the width of the roadway is wide, the safety risk and the construction amount of roof caving are increased, the tunneling cost is greatly increased, and the width of the underground coal mine roadway is basically determined. Therefore, due to the limited width of the roadway, the continuous mining machine and the jumbolter cannot stagger in the underground coal mine roadway with the limited width.

At present, in order to realize efficient excavation and anchoring operation of a continuous mining machine and an anchor rod drilling machine in some large mines, only an exploitation mode of simultaneous excavation of two roadways can be selected, so that the construction operation positions of the continuous mining machine and the anchor rod drilling machine need to be exchanged between the two roadways in a reciprocating mode, and the efficiency of roadway excavation can be greatly reduced to a certain degree. In conclusion, the research and development of the transfer transportation equipment which can enable the continuous mining machine and the jumbolter to efficiently interchange the operation positions in the same underground coal mine roadway is very important.

SUMMERY OF THE UTILITY MODEL

The application provides a coal mine underground roadway movable type crossing transshipment portal support which is used for solving the problems existing in the background technology.

In order to solve the technical problems, the application adopts the following technical scheme:

the application provides a coal mine underground roadway movable type crossing transshipment portal bracket which comprises a crawler moving assembly and a hoisting assembly;

the crawler moving assembly comprises two support frames and two crawler moving units which are arranged in parallel relatively; the two crawler moving units are used for synchronously moving relative to the ground of a coal mine underground roadway, and each crawler moving unit is provided with one support frame;

the hoisting assembly comprises a telescopic upright post, a supporting top plate and a hanging unit; the telescopic upright post is vertically arranged at the top of the support frame, the support top plate is horizontally arranged at the top of the telescopic upright post, and the hanging unit is arranged on the lower surface of the support top plate and used for hanging an anchor rod drilling machine.

Optionally, the coal mine underground roadway movable type crossing transshipment portal support further comprises a material transportation assembly;

the material transportation assembly comprises a top beam and a hoisting oil cylinder;

the length direction of back timber with the length direction of back timber is parallel, the top of back timber is connected on the lower surface of back timber, the bottom of back timber is connected the top of flexible stand, lift by crane the oil cylinder setting in the bottom of back timber.

Optionally, each of the two track moving units comprises a chassis, a guide wheel, a driving wheel, a plurality of carrier wheels, a plurality of thrust wheels, a track and a driving member;

the guide wheel with the drive wheel sets up respectively the bottom at the both ends on chassis, it is a plurality of hold in the palm the sprocket equidistant setting is in the top on chassis, it is a plurality of the thrust wheel equidistant setting is in the bottom on chassis, the track cover is established the guide wheel drive wheel, it is a plurality of hold in the palm the sprocket and a plurality of on the thrust wheel, the driving piece is used for the drive wheel rotates.

Optionally, each of the two support frames includes a support table and a plurality of first support columns;

every the bottom of first support column is vertical to be set up on the chassis, every the top of first support column all is connected on the lower surface of brace table, the bottom of flexible stand with the upper surface of brace table is connected.

Optionally, the hanging unit comprises a steel rail with an opening at the bottom, a slider wheel, a hanging rope and a hook;

the steel rail is parallel to the length direction of the supporting top plate and is arranged on the lower surface of the supporting top plate, the sliding block is arranged in the steel rail and can slide along the length direction of the steel rail, one end of the hanging rope is arranged at the bottom of the sliding block, and the other end of the hanging rope is connected with the hook.

Optionally, the telescopic upright column comprises a second support column and a telescopic column;

the bottom setting of second support column is in on the upper surface of brace table, the top of second support column with the bottom of flexible post is connected, the top of flexible post with the lower surface of supporting the roof is connected, flexible post can be followed self length direction and stretched out and drawn back from top to bottom.

Optionally, the telescopic column is an electric telescopic rod.

Optionally, the number of the telescopic columns is at least four, at least two telescopic columns are arranged on each supporting frame, and the top of each telescopic column is arranged at the edge of the lower surface of the supporting top plate.

Optionally, the coal mine underground roadway movable type crossing transshipment portal support further comprises a camera;

the camera is arranged on the lower surface of the supporting top plate and used for monitoring the supporting and tunneling conditions of the underground coal mine roadway.

According to the movable type crossing transshipment portal support for the underground coal mine roadway, the two crawler belt moving units which are arranged in parallel relatively and can synchronously move along the ground of the underground coal mine roadway are used for realizing free reciprocating movement in the underground coal mine roadway; in addition, the hoisting assembly is connected with the crawler moving assemblies through the supporting frame, the distance between a hanging unit arranged on the lower surface of the supporting top plate and the anchor rod drilling machine is adjusted through the up-and-down stretching of a telescopic upright post in the hoisting assembly, the hanging of the anchor rod drilling machine can be accurately realized through the hanging unit, when the anchor rod drilling machine is hung on the hanging unit, the anchor rod drilling machine is disassembled through the stretching of the telescopic upright post and the two crawler moving units to transport the anchor rod drilling machine to a required position, and therefore the problems that the continuous mining machine and the anchor rod drilling machine cannot simultaneously realize excavation and anchor operation due to the fact that the roadway is limited in width and cannot be staggered in the underground roadway of the coal mine are solved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic side view of a coal mine underground roadway movable type crossing transshipment portal support provided in an embodiment of the present application;

fig. 2 is a front view of a coal mine underground roadway movable type crossing transshipment portal support provided in another embodiment of the present application;

FIG. 3 is a schematic structural view of a hanging unit disposed on a lower surface of a supporting top plate according to another embodiment of the present disclosure;

fig. 4 is a front view of a slide block disposed in a slide rail according to another embodiment of the present application.

In the figure: 100. a track moving assembly; 200. a crawler moving unit; 201. a chassis; 202. a guide wheel; 203. a drive wheel; 204. a chain supporting wheel; 205. a thrust wheel; 206. a crawler belt; 300. a support frame; 301. a support table; 302. a first support column; 400. a telescopic upright post; 401. a second support column; 402. a telescopic column; 500. supporting a top plate; 600. a hanging unit; 601. a slide rail; 602. a slider; 603. a hanging rope; 604. hooking; 700. a hoisting assembly; 800. a material transport assembly; 801. a top beam; 802. and (5) hoisting the oil cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present application, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort also belong to the protection scope of the present application.

Compared with an excavation and anchoring integrated machine and a heading machine, the continuous mining machine in the prior art has higher cutting efficiency, so that the continuous mining machine is widely applied in the process of heading a coal mine underground roadway. The anchor rod drilling machine is a drilling tool in the anchor rod supporting work of a coal mine roadway. Therefore, the jumbolter is often used together with a continuous mining machine for supporting and driving a coal mine underground roadway. However, the phenomenon of vehicle deviation inevitably exists when the continuous mining machine and the anchor rod drilling machine operate in the underground coal mine roadway, the vehicle deviation is realized in the underground coal mine roadway by the continuous mining machine and the anchor rod drilling machine, the width of the underground coal mine roadway at least reaches more than 6.5 meters, the actual width of the underground coal mine roadway is mostly designed to be within 5 meters, particularly, a roof is unstable in a mining area, the safety risk and the construction amount of roof caving are increased due to the wide roadway width, the tunneling cost is greatly increased, and the width of the underground coal mine roadway is basically determined. Therefore, due to the fact that the width of the roadway is limited, the continuous mining machine and the anchor rod drilling machine cannot make a mistake in the coal mine underground roadway with the limited width, and the continuous mining machine and the anchor rod drilling machine reciprocate to exchange construction operation positions between the two roadways, and therefore the roadway tunneling efficiency can be greatly reduced to a certain extent. Based on this, this application has proposed the following technical scheme:

referring to fig. 1 to 4, the application provides a coal mine underground roadway movable type crossing transshipment portal support, which comprises a crawler moving assembly 100 and a hoisting assembly 700; specifically, the crawler movement assembly 100 comprises two support frames 300 and two crawler movement units 200 which are arranged in parallel relatively, wherein the distance between the two crawler movement units 200 is smaller than the width of the underground coal mine roadway and larger than the width of a machine body of the continuous mining machine, so that the movable spanning transshipment portal support of the underground coal mine roadway can transship the jumbolter from the top of the continuous mining machine to an area needing to be supported in the process of digging and anchoring by the spanning continuous mining machine; the two crawler moving units 200 are used for synchronously moving relative to the ground of the underground roadway of the coal mine, and each crawler moving unit 200 is provided with a support frame 300; the movable crossing transshipment portal support can freely reciprocate in the underground coal mine roadway through the two crawler belt moving units 200 which are arranged in parallel relatively and can synchronously move along the ground of the underground coal mine roadway.

The hoisting assembly 700 comprises a telescopic upright column 400, a supporting top plate 500 and a hanging unit 600; the telescopic upright column 400 is vertically arranged at the top of the support frame 300, the support top plate 500 is horizontally arranged at the top of the telescopic upright column 400, and the hanging unit 600 is arranged on the lower surface of the support top plate 500 and used for hanging the anchor drilling machine. This application links together hoisting component 700 and track removal subassembly 100 through support frame 300, the adjustment of distance between the unit 600 of hanging that sets up on the lower surface of supporting roof 500 and the roofbolter is realized to the upper and lower flexible realization through the flexible stand 400 in the hoisting component 700, make the hanging that unit 600 can accurate realization is to the roofbolter, when treating the roofbolter to hang on hanging unit 600 flexible through flexible stand 400 and transship the roofbolter to required position through two track removal units 200, the extension through flexible stand 400 unloads the roofbolter, thereby realized in the colliery underworkings because of the limited unable wrong car of tunnel width causes continuous miner and roofbolter can't realize simultaneously digging, the problem of anchor operation, and a structure is simple, easy operation, the tunneling machine and the roofbolter are dug simultaneously, the anchor operation has been realized, and then the efficiency in the colliery underworkings has been improved.

In some embodiments, the coal mine underground roadway movable crossing transshipment portal support further comprises a material transportation assembly 800; specifically, the material transportation assembly 800 comprises a top beam 801 and a lifting cylinder 802; the length direction of the top beam 801 is parallel to the length direction of the supporting top plate 500, the top of the top beam 801 is connected to the lower surface of the supporting top plate 500, the bottom of the top beam 801 is connected to the top of the telescopic upright column 400, and the lifting oil cylinder 802 is arranged at the bottom of the top beam 801.

In the above embodiment, there may be a plurality of hoisting cylinders 802, and each hoisting cylinder 802 is used to hoist the material required in the process of driving and supporting in the coal mine underground roadway. Therefore, the number of the lifting oil cylinders 802 can be set according to actual needs, and the number of the lifting oil cylinders 802 is not specifically limited in the application.

In some embodiments, both track moving units 200 in the present application comprise a chassis 201, guide wheels 202, drive wheels 203, a plurality of idler wheels 204, a plurality of bogie wheels 205, a track 206, and a drive; specifically, the guide wheel 202 and the driving wheel 203 are respectively arranged at the bottom of two ends of the chassis 201, the plurality of chain supporting wheels 204 are arranged at the top of the chassis 201 at equal intervals, the plurality of thrust wheels 205 are arranged at the bottom of the chassis 201 at equal intervals, the crawler 206 is sleeved on the guide wheel 202, the driving wheel 203, the plurality of chain supporting wheels 204 and the plurality of thrust wheels 205, and the driving piece is used for driving the driving wheel 203 to rotate.

In the above embodiment, the driving member drives the driving wheel 203 to rotate, and the rotation of the driving wheel 203 drives the track 206 and the guide wheel 202, the plurality of carrier rollers 204 and the plurality of thrust wheels 205 abutting against the inner wall of the track 206 to rotate, wherein the driving member may be a driving motor or an engine, and the purpose of the driving member is to provide power for the rotation of the driving wheel 203, and the specific form of the driving member is not further limited herein; in addition, the contact area between the track 206 and the reference surface is larger relative to the wheels of the engineering vehicle, the pressure generated on the reference surface is smaller, the cross-country capacity is strong, and the climbing capacity is large, so that the track moving unit 200 can move in severe and complex places, and the digging and anchoring efficiency of the coal mine underground roadway movable type transshipment portal support is improved.

In some embodiments, both support stands 300 in the present application comprise a support table 301 and a plurality of first support columns 302; wherein, the vertical setting in bottom of every first support column 302 is on chassis 201, and the top of every first support column 302 all is connected on the lower surface of a supporting bench 301, the bottom of flexible stand 400 and the upper surface connection of a supporting bench 301. The first support column 302 does not move along with the crawler 206, that is, the first support column 302 is stationary, and the position of the first support column 302 relative to the ground of the underground coal mine roadway changes along with the movement of the crawler 206, so that the walking smoothness of the crawler 206 can be ensured.

In some embodiments, the hanging unit 600 in the present application includes an open-bottomed steel rail 601, a slider 602, a hanging rope 603, and a hook 604; specifically, the rail 601 is parallel to the longitudinal direction of the supporting top plate 500 and is disposed on the lower surface of the supporting top plate 500, the slider 602 is disposed in the rail 601 and can slide along the longitudinal direction of the rail 601, one end of the hanging rope 603 is disposed at the bottom of the slider 602, and the other end of the hanging rope 603 is connected to the hook 604.

In particular, the roof of the jumbolter is provided with a suspension loop that mates with the hook 604. In the above embodiment, the hook 604 is hung on a hanging ring at the top of the anchor rod drilling machine, and the anchor rod drilling machine moves in the left-right direction on the hook 604 by sliding the slider 602 in the rail 601, so that the anchor rod drilling machine can be carried to a position to be supported, and the anchor rod drilling machine is simple in structure and easy to adjust.

In some embodiments, telescoping mast 400 of the present application includes a second support column 401 and a telescoping column 402; specifically, the bottom of the second support column 401 is disposed on the upper surface of the support table 301, the top of the second support column 401 is connected to the bottom of the telescopic column 402, the top of the telescopic column 402 is connected to the lower surface of the top support plate 500, and the telescopic column 402 can extend and retract up and down along the length direction of the telescopic column 402. The second supporting column 401 can play a role in guiding the telescopic column 402 to stretch up and down, the telescopic column 402 is ensured to stretch up and down along the length direction of the second supporting column, the stability of connection between the crawler moving assembly 100 and the lifting assembly 700 can be improved, and the reliability of the coal mine underground roadway movable crossing transshipment portal support in the using process is further improved.

In some embodiments, the telescopic column 402 in this application is an electric telescopic rod, and the electric telescopic rod can accurately realize the upward and downward extension in the vertical direction, thereby realizing the accurate adjustment of the distance between the bottom of the hanging unit 600 and the top of the jumbolter, and improving the accuracy of the jumbolter lifting process and the lifting efficiency.

In some embodiments, there are at least four telescopic pillars 400, and at least two telescopic pillars 400 are disposed on each supporting frame 300, and the top of each telescopic pillar 400 is disposed at the edge of the lower surface of the supporting top plate 500. Wherein, be provided with two flexible stands 400 on every support frame 300 at least, the portable flexible stand 400 of strideing across in the transshipment portal frame in colliery underworkings has four at least promptly, and the top of every flexible stand 400 all is fixed in the border department of the lower surface of supporting roof 500, can increase flexible stand 400 to the support stability of supporting roof 500 like this, and then improved the portable overall stability and the operational safety of strideing across the transshipment portal frame in colliery underworkings.

In some embodiments, the coal mine underground roadway movable crossing transshipment portal support further comprises a camera; the camera sets up on the lower surface of supporting roof 500 for the supporting and the tunnelling condition in colliery underworkings is monitored, that is to say, through installing the camera on supporting roof 500, the portable transshipment portal frame of strideing across in colliery underworkings, the operating condition of machine and roofbolter is adopted in company to the monitoring in real time, make the portable transshipment portal frame of strideing across in colliery underworkings in this application have perfect monitoring system, its reliable operating condition has been guaranteed, easy automation mechanized operation, and then the portable work efficiency and the accuracy of transshipment portal frame are strideed across in colliery underworkings has been improved.

The application provides a colliery underworkings portable specific theory of operation of striding across transshipment portal frame as follows:

the distance between a hook 604 and the jumbolter is adjusted through the expansion of an expansion column 402, the jumbolter is hung on the hook 604, the expansion column 402 is extended to enable the top of the jumbolter to be higher than the top of the continuous mining machine, then a driving piece drives a driving wheel 203 to rotate, further a crawler 206 is driven to rotate around the driving wheel 203, a guide wheel 202, a plurality of carrier wheels 204 and a plurality of supporting wheels 205, the movable crossing transshipment portal support of the underground coal mine roadway is moved in the underground coal mine roadway, the continuous mining machine is clamped between two crawler moving units 200, the jumbolter is transshipped to the front end of the continuous mining machine in combination with the sliding of a sliding block 602 in a track 601, corresponding supporting operation is carried out in time, the jumbolter is hoisted, transshipped and transported to the rear end of the continuous mining machine in time after a circulating supporting operation is completed, and then the jumbolter is hoisted, transshipped and transported to the rear end of the continuous mining machine in time, so that the jumbolter and the parallel operation of the jumbolter can be carried out in one roadway at one time, and the jumbolter can not occupy limited space in the roadway under the idle condition.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.

Claims (9)

1. A coal mine underground roadway movable type crossing transshipment portal bracket is characterized by comprising a crawler moving assembly (100) and a hoisting assembly (700);

the crawler movement assembly (100) comprises two support frames (300) and two crawler movement units (200) which are arranged in parallel relatively; the two crawler moving units (200) are used for synchronously moving relative to the ground of a coal mine underground roadway, and each crawler moving unit (200) is provided with one support frame (300);

the hoisting assembly (700) comprises a telescopic upright post (400), a supporting top plate (500) and a hoisting unit (600); the telescopic vertical column (400) is vertically arranged at the top of the support frame (300), the support top plate (500) is horizontally arranged at the top of the telescopic vertical column (400), and the hanging unit (600) is arranged on the lower surface of the support top plate (500) and used for hanging an anchor rod drilling machine.

2. The coal mine underground roadway movable type crossing transshipment portal support frame as claimed in claim 1, further comprising a material transportation assembly (800);

the material transportation assembly (800) comprises a top beam (801) and a lifting cylinder (802);

the length direction of back timber (801) with the length direction of supporting roof (500) is parallel, the top of back timber (801) is connected on the lower surface of supporting roof (500), the bottom of back timber (801) is connected the top of flexible stand (400), lift by crane hydro-cylinder (802) and set up the bottom at back timber (801).

3. The coal mine underground roadway movable type crossing transshipment portal support frame according to claim 1, wherein each of the two crawler moving units (200) comprises a chassis (201), guide wheels (202), driving wheels (203), a plurality of carrier wheels (204), a plurality of thrust wheels (205), a crawler (206) and a driving piece;

the guide wheel (202) and the drive wheel (203) are respectively arranged at the bottoms of two ends of the chassis (201), the supporting chain wheels (204) are arranged at the top of the chassis (201) at equal intervals, the supporting chain wheels (205) are arranged at the bottom of the chassis (201) at equal intervals, the crawler belt (206) is sleeved on the guide wheel (202), the drive wheel (203), the supporting chain wheels (204) and the supporting chain wheels (205), and the driving piece is used for driving the drive wheel (203) to rotate.

4. The coal mine underground roadway movable type crossing transshipment portal support frame according to claim 3, wherein each of the two support frames (300) comprises a support table (301) and a plurality of first support columns (302);

every the vertical setting in bottom of first support column (302) is in on chassis (201), every the top of first support column (302) is all connected on the lower surface of brace table (301), the bottom of flexible stand (400) with the upper surface of brace table (301) is connected.

5. The coal mine underground roadway movable type crossing transshipment portal support frame according to claim 1, wherein the hanging unit (600) comprises a steel rail (601) with an opening at the bottom, a sliding block (602), a hanging rope (603) and a hook (604);

the steel rail (601) is parallel to the length direction of the supporting top plate (500) and is arranged on the lower surface of the supporting top plate (500), the sliding block (602) is arranged in the steel rail (601) and can slide along the length direction of the steel rail (601), one end of the hanging rope (603) is arranged at the bottom of the sliding block (602), and the other end of the hanging rope (603) is connected with the hook (604).

6. The coal mine underground roadway movable type crossing transshipment portal frame as claimed in claim 4, wherein the telescopic vertical column (400) comprises a second support column (401) and a telescopic column (402);

the bottom of second support column (401) sets up on the upper surface of brace table (301), the top of second support column (401) with the bottom of flexible post (402) is connected, the top of flexible post (402) with the lower surface of supporting roof (500) is connected, flexible post (402) can be followed self length direction and stretched out and drawn back from top to bottom.

7. The coal mine underground roadway movable type crossing transshipment portal support frame as claimed in claim 6, wherein the telescopic column (402) is an electric telescopic rod.

8. The coal mine underground roadway movable type crossing transshipment portal support frame as claimed in claim 6, wherein the number of the telescopic columns (400) is at least four, at least two telescopic columns (400) are arranged on each support frame (300), and the top of each telescopic column (400) is arranged at the edge of the lower surface of the support top plate (500).

9. The coal mine underground roadway movable type crossing transshipment portal support frame as claimed in any one of claims 1 to 8, further comprising a camera;

the camera is arranged on the lower surface of the supporting top plate (500) and used for monitoring the supporting and tunneling conditions of the underground coal mine roadway.

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