阅读说明：本技术 一种架棚型机载式临时支护装置 (Shed-erecting type onboard temporary supporting device ) 是由 顾天祥 吕彪 孟凡刚 王新建 于 2019-12-12 设计创作，主要内容包括：本发明涉及煤矿巷道顶板支护机械,具体为一种架棚型机载式临时支护装置。该支护装置安装于掘进机截割部上,该支护装置设有上下双层梁结构支护架体和后垂直升降支撑装置,在掘进机截割部保护筒与支护架体之间加装有前垂直升降支撑装置。该支护装置通过加长销轴与掘进机截割部进行连接,该装置通过加长销轴安装于掘进机截割部上面,与掘进机截割部形成机载式连接。本发明具有收缩伸展、垂直升降、顶板支护架体二次施压、左右侧偏转升降等作业选择方式,使井下巷道顶板人工支护劳动转化成机械化操作控制,解决掘进机与临时支护装置分体工作造成的时间上的浪费,危险性高,以及工人的劳动强度大等问题。(The invention relates to a coal mine tunnel roof supporting machine, in particular to a shed-erecting type onboard temporary supporting device. The supporting device is arranged on a cutting part of the development machine, the supporting device is provided with an upper and lower double-layer beam structure supporting frame body and a rear vertical lifting supporting device, and a front vertical lifting supporting device is additionally arranged between a protective barrel of the cutting part of the development machine and the supporting frame body. The supporting device is connected with a cutting part of the heading machine through a lengthened pin shaft, and the supporting device is installed on the cutting part of the heading machine through the lengthened pin shaft and is connected with the cutting part of the heading machine in a machine-mounted mode. The invention has the operation selection modes of contraction and extension, vertical lifting, secondary pressure application of a top plate supporting frame body, left-right deflection lifting and the like, converts manual supporting work of the top plate of the underground roadway into mechanical operation control, and solves the problems of time waste, high danger, high labor intensity of workers and the like caused by the split work of the tunneling machine and the temporary supporting device.)

1. The utility model provides a temporary support device of canopy type on-board which characterized in that, this support device installs on entry driving machine cutting units, and this support device is equipped with upper and lower double-deck roof beam structure support frame body and back vertical lift strutting arrangement, installs preceding vertical lift strutting arrangement additional between entry driving machine cutting units protection section of thick bamboo and support frame body.

2. A shelter-type on-board temporary support as claimed in claim 1 wherein the support is connected to the cutting section of the heading machine by elongate pins, the support being mounted on the cutting section of the heading machine by elongate pins to form an on-board connection with the cutting section of the heading machine.

3. A shelter-type on-board temporary support apparatus as claimed in claim 1, comprising: back vertical lift strutting arrangement, preceding vertical lift strutting arrangement, strut support body, preceding vertical lift strutting arrangement base, perpendicular upset hydro-cylinder, extension round pin axle one, extension round pin axle two, concrete structure is as follows:

a rear vertical lifting support device and a front vertical lifting support device are arranged between the cutting part of the development machine and the support frame body, one end of a vertical overturning oil cylinder and one end of the rear vertical lifting support device are respectively arranged on a first lengthening pin shaft and a second lengthening pin shaft of the cutting part of the development machine, one end of the vertical overturning oil cylinder is arranged on the first lengthening pin shaft, and the other end of the vertical overturning oil cylinder is connected with an ear ring on the rear vertical lifting support device; one end of the rear vertical lifting support device is arranged on the lengthened pin shaft II, the other end of the rear vertical lifting support device is connected with the rear part of the support frame body, and a vertical lifting oil cylinder is arranged on the rear vertical lifting support device; a front vertical lifting supporting device base is hoop-welded at the protective barrel of the cutting part of the heading machine, one end of the front vertical lifting supporting device is hinged with the front vertical lifting supporting device base, the other end of the front vertical lifting supporting device is connected with the front part of the supporting frame body, and a vertical lifting oil cylinder is arranged on the front vertical lifting supporting device.

4. A shelter-type on-board temporary support as claimed in claim 3, wherein the support frame comprises: shaped steel draw-in groove, the hydro-cylinder of lifting, lower floor's roof beam inner tube, connecting rod, lower floor's roof beam hydro-cylinder, outer tie-beam, inlayer tie-beam, concrete structure is as follows:

the two ends of the lower beam oil cylinder are respectively provided with a lower beam inner cylinder as a group of telescopic beams, the three groups of telescopic beams are arranged in parallel side by side, two adjacent groups of telescopic beams are respectively connected through two inner connecting beams and two outer connecting beams, the two inner connecting beams are positioned in the middle, and the two outer connecting beams are positioned at the two ends to form a lower beam frame structure; two groups of profile steel clamping grooves are respectively arranged in the middle of the opposite outer connecting beams, and one profile steel is arranged on each group of profile steel clamping groove, so that the two profile steels are arranged on the lower beam frame structure in a relatively parallel manner; and the inner layer connecting beams are respectively provided with a lifting oil cylinder, and the top of the lifting oil cylinder is connected with the profile steel.

5. A shed-type machine-mounted temporary support device as claimed in claim 4, wherein each set of telescoping beams is provided with a set of spring bow, each set of spring bow is composed of a first spring bow and two second spring bows, both ends of the middle spring bow extend into the spring bow chutes respectively and are connected with the spring bow chutes through bolts, both ends of the two spring bows extend into the spring bow chutes respectively and are in sliding fit with the spring bow chutes, the other ends of the two spring bows are connected with the connecting rods on the lower beam frame structure, and the connecting rods are hinged with the lower beam frame structure.

6. A shelter-type machine-mounted temporary support as claimed in claim 5 in which the spring bow is rectangular, arched or trapezoidal in cross-section.

7. A temporary support system on board a shelter as claimed in claim 4 in which a set of oppositely disposed inner beams are connected by connectors to mount two curved plates and a cross bar connection which are hinged to the front vertical lifting support means; two arc plates and a cross shaft connecting structure are arranged on the group of telescopic beams, and the two arc plates and the cross shaft connecting structure are hinged with the rear vertical lifting supporting device.

8. A temporary supporting device on board a canopy type machine as claimed in claim 7, wherein the connecting structure of the arc plate and the cross shaft comprises an arc plate and a cross shaft, the arc plate arranged on the supporting frame body is arranged on the top of the cross shaft, the vertical shaft of the cross shaft is hinged with the supporting frame body, the transverse shaft of the cross shaft is hinged with the front vertical lifting supporting device or the rear vertical lifting supporting device, and the arc plate and the cross shaft are in sliding fit through surface contact under the driving of the front vertical lifting supporting device or the rear vertical lifting supporting device.

9. A shelter-type machine-mounted temporary support as claimed in claim 4 in which the section steel is I-section steel, beam channel steel or 29U section steel.

Technical Field

The invention relates to a roof supporting machine for a coal mine tunnel, in particular to a shed-erecting type onboard temporary supporting device which is a mechanical type temporary supporting mode added on the existing tunneling machine and is a two-in-one onboard temporary supporting device.

Background

The supporting work of the tunneller after the tunnel is tunneled is hard and complex and extremely low in efficiency, the main reason is that the tunneller and the anchor bolt support work in a split mode, a large amount of time is wasted, manual supporting is high in labor intensity and low in efficiency, and miners work under an exposed top plate, and the danger is very high. Therefore, the 'onboard temporary support device' capable of replacing manual operation becomes a product for miner somnolence.

At present, the support modes generally adopted by domestic coal mines are mainly divided into two structural modes of channeling pipes and supporting columns and cross beams. The fact that miners do not contend before the eyes due to high labor intensity and long supporting time is shown, and the fact that the supporting area is small and the top protection force is poor is also another reason for easily generating roof settlement and deformation.

Disclosure of Invention

The invention aims to provide a shed-erecting machine-mounted temporary supporting device arranged on a heading machine, which solves the problems of high labor intensity of miners, long supporting time, small supporting area, poor supporting force and the like in the prior art.

The technical scheme of the invention is as follows:

the utility model provides a canopy type machine carries formula temporary support device, this support device install on entry driving machine cutting units, this support device is equipped with upper and lower double-deck roof beam structure and struts support body and back vertical lift strutting arrangement, installs preceding vertical lift strutting arrangement additional between entry driving machine cutting units protection section of thick bamboo and the support body.

The shed-erecting type onboard temporary supporting device is connected with the cutting part of the heading machine through the lengthened pin shaft, and the device is installed on the cutting part of the heading machine through the lengthened pin shaft and forms onboard connection with the cutting part of the heading machine.

The on-board temporary support device of the canopy type machine, the on-board temporary support device of the canopy type machine comprises: back vertical lift strutting arrangement, preceding vertical lift strutting arrangement, strut support body, preceding vertical lift strutting arrangement base, perpendicular upset hydro-cylinder, extension round pin axle one, extension round pin axle two, concrete structure is as follows:

a rear vertical lifting support device and a front vertical lifting support device are arranged between the cutting part of the development machine and the support frame body, one end of a vertical overturning oil cylinder and one end of the rear vertical lifting support device are respectively arranged on a first lengthening pin shaft and a second lengthening pin shaft of the cutting part of the development machine, one end of the vertical overturning oil cylinder is arranged on the first lengthening pin shaft, and the other end of the vertical overturning oil cylinder is connected with an ear ring on the rear vertical lifting support device; one end of the rear vertical lifting support device is arranged on the lengthened pin shaft II, the other end of the rear vertical lifting support device is connected with the rear part of the support frame body, and a vertical lifting oil cylinder is arranged on the rear vertical lifting support device; a front vertical lifting supporting device base is hoop-welded at the protective barrel of the cutting part of the heading machine, one end of the front vertical lifting supporting device is hinged with the front vertical lifting supporting device base, the other end of the front vertical lifting supporting device is connected with the front part of the supporting frame body, and a vertical lifting oil cylinder is arranged on the front vertical lifting supporting device.

The temporary supporting device of the shed type machine-mounted type supports the frame body and comprises: shaped steel draw-in groove, the hydro-cylinder of lifting, lower floor's roof beam inner tube, connecting rod, lower floor's roof beam hydro-cylinder, outer tie-beam, inlayer tie-beam, concrete structure is as follows:

the two ends of the lower beam oil cylinder are respectively provided with a lower beam inner cylinder as a group of telescopic beams, the three groups of telescopic beams are arranged in parallel side by side, two adjacent groups of telescopic beams are respectively connected through two inner connecting beams and two outer connecting beams, the two inner connecting beams are positioned in the middle, and the two outer connecting beams are positioned at the two ends to form a lower beam frame structure; two groups of profile steel clamping grooves are respectively arranged in the middle of the opposite outer connecting beams, and one profile steel is arranged on each group of profile steel clamping groove, so that the two profile steels are arranged on the lower beam frame structure in a relatively parallel manner; and the inner layer connecting beams are respectively provided with a lifting oil cylinder, and the top of the lifting oil cylinder is connected with the profile steel.

The shed-erecting type onboard temporary supporting device is characterized in that a group of spring bow plates are respectively installed on each group of telescopic beams, each group of spring bow plates is of a spring bow plate I and two spring bow plate II combined structures, two ends of each spring bow plate in the middle are respectively extended into the spring bow plate sliding grooves and are connected with the spring bow plate sliding grooves through bolts, two ends of each spring bow plate on two sides are respectively extended into the spring bow plate sliding grooves and are in sliding fit with the spring bow plate sliding grooves, the other end of each spring bow plate II is connected with a connecting rod on a lower-layer beam frame structure, and the connecting rods are hinged to the lower-layer beam frame structure.

In the shed-erecting type vehicle-mounted temporary supporting device, the cross section of the spring bow plate is rectangular, arched or trapezoidal.

In the shed-type onboard temporary supporting device, two arc plates and a cross shaft connecting structure are arranged between a group of inner connecting beams which are arranged oppositely through connecting pieces, and the two arc plates and the cross shaft connecting structure are hinged with the front vertical lifting supporting device; two arc plates and a cross shaft connecting structure are arranged on the group of telescopic beams, and the two arc plates and the cross shaft connecting structure are hinged with the rear vertical lifting supporting device.

The shed type vehicle-mounted temporary supporting device comprises an arc plate and a cross shaft, wherein the arc plate and a cross shaft connecting structure comprise the arc plate and the cross shaft, the arc plate arranged on a supporting frame body is arranged at the top of the cross shaft, a vertical shaft of the cross shaft is hinged with the supporting frame body, a transverse shaft of the cross shaft is hinged with a front vertical lifting supporting device or a rear vertical lifting supporting device, and the arc plate and the cross shaft are in surface contact sliding fit under the driving of the front vertical lifting supporting device or the rear vertical lifting supporting device.

The shed-erecting machine-mounted temporary supporting device is characterized in that the section steel is I-shaped steel, beam channel steel or 29U-shaped steel.

The invention has the beneficial effects that:

1. the machine-mounted temporary support device is in modular design, has a compact structure and independence, can be used on various types of heading machines in a matched manner, and increases the advanced support function of the heading machine.

2. The machine-mounted temporary support device relieves miners from hard and dangerous environments, and realizes mechanized operation of most dangerous underground manual labor.

3. The machine-mounted temporary support device can greatly improve the fully mechanized excavation ruler efficiency of the roadway.

4. The machine-mounted temporary support device has reasonable design, flexibility, simplicity and convenience, can meet the support requirements of various roadways, has a real advanced support function, can complete the continuous work of roadway excavation and mechanical support, not only improves the excavation and protection efficiency, but also improves the safety of underground operation of miners, and greatly reduces the labor intensity of operators.

5. The machine-mounted temporary support device is connected with the cutting part of the development machine through the positioning pin shaft, and the front vertical lifting support device is adopted, so that the fundamental significance of advanced support is completely realized.

6. The machine-mounted temporary supporting device utilizes the hydraulic pump station of the development machine and adopts full hydraulic drive control, thereby simplifying the structure of the whole machine and reducing the space size of the whole machine to the maximum extent.

7. The onboard temporary support device is arranged on two sides of a cutting part of the heading machine through positioning pin shafts and forms onboard connection with the cutting part of the heading machine. The device has the functions of supporting frame body side wing expansion, lifting, advance support and the like, particularly, the supporting device is additionally provided with a front vertical lifting supporting mode at a front probe beam part, can complete temporary support of a common roadway, and is also suitable for advance support of the roadway which is easy to deform and subside and separate from a head-on empty top area.

Drawings

Fig. 1-3 are three views of the onboard temporary support device of the present invention; fig. 1 is a front view, fig. 2 is a plan view, and fig. 3 is a side view.

Fig. 4-6 are views of the support frame of the onboard temporary support device of the present invention; fig. 4 is a front view, fig. 5 is a plan view, and fig. 6 is a side view.

Fig. 7 is a schematic view of the normal working state of the onboard temporary support device of the invention.

Fig. 8 is a schematic view of the onboard temporary support device in an abnormal working state.

Fig. 9 is a schematic view of the onboard temporary support device in an abnormal working state.

Fig. 10 is a schematic view of the connection structure of the arc-shaped plate and the cross shaft of the invention.

In the figure, 1, a rear vertical lifting supporting device, 2, a front vertical lifting supporting device, 3, a supporting frame body, 4, a front vertical lifting supporting device base, 5, a vertical overturning oil cylinder, 6, profile steel, 7, first lengthened pin shafts, 8, second lengthened pin shafts, 9, a cutting part protecting cylinder and 10, and a cutting part of the development machine. 31. The device comprises a profile steel clamping groove, a connecting structure of 32, an arc-shaped plate and a cross shaft, 33, a spring bow plate sliding groove, 34, a push-lift oil cylinder, 35, a first spring bow plate, 36, a second spring bow plate, 37, a lower layer beam inner cylinder, 38, a connecting rod, 39, a lower layer beam oil cylinder, 310, an outer layer connecting beam, 311, an inner layer connecting beam, 321, an arc-shaped plate, 322 and a cross shaft.

Detailed Description

As shown in fig. 1-3, the temporary support device mounted on the tunnel boring machine is mounted on the cutting part 10 of the tunnel boring machine, and is connected with the cutting part 10 of the tunnel boring machine through the lengthened pin shafts (the lengthened pin shaft I7 and the lengthened pin shaft II 8), and the temporary support device is mounted on the cutting part 10 of the tunnel boring machine through the lengthened pin shafts and forms a machine-mounted connection with the cutting part 10 of the tunnel boring machine. The front vertical lifting support device 2 is additionally arranged between the cutting part 10 of the heading machine and the support frame body 3, and the front vertical lifting support device 2 is adopted, so that the fundamental significance of advance support is completely realized.

This canopy type machine carries formula temporary support device mainly includes: back vertical lift strutting arrangement 1, preceding vertical lift strutting arrangement 2, strut support body 3, preceding vertical lift strutting arrangement base 4, perpendicular upset hydro-cylinder 5, extension round pin axle one 7, extension round pin axle two 8 etc. specific structure as follows:

the rear vertical lifting support device 1 and the front vertical lifting support device 2 are installed between the cutting part 10 of the heading machine and the support frame body 3, one ends of the vertical overturning oil cylinder 5 and the rear vertical lifting support device 1 are respectively installed on two pin shafts (a lengthened pin shaft I7 and a lengthened pin shaft II 8) of the cutting part 10 of the heading machine, one end of the vertical overturning oil cylinder 5 is installed on the lengthened pin shaft I7, the other end of the vertical overturning oil cylinder 5 is connected with an ear ring on the rear vertical lifting support device 1, and when the vertical overturning oil cylinder 5 acts, the front vertical lifting support device 2 and the rear vertical lifting support device 1 are pushed to be vertical or form certain deflection towards the cutting head of the heading machine, and meanwhile, the support frame body 3 is driven to move forwards and rise. One end of the rear vertical lifting support device 1 is installed on the lengthened pin shaft II 8, the other end of the rear vertical lifting support device 1 is connected with the rear portion of the support frame body 3, and a vertical lifting oil cylinder is arranged on the rear vertical lifting support device 1. The front vertical lifting supporting device base 4 is hoop-welded at a protective barrel 9 of a cutting part of the heading machine, one end of the front vertical lifting supporting device 2 is hinged with the front vertical lifting supporting device base 4, the other end of the front vertical lifting supporting device 2 is connected with the front part of the supporting frame body 3, a vertical lifting oil cylinder is arranged on the front vertical lifting supporting device 2, and the top of the supporting frame body 3 is parallelly and oppositely provided with section steel 6.

The front vertical lifting support device 2 is additionally arranged between the cutting part 10 of the heading machine and the front part of the support frame body 3, so that the front vertical lifting support device has a real advanced support function, and is suitable for not only general roadways, but also roadways which are easy to deform and settle out. The front vertical lifting supporting device 2 adopts a vertical lifting supporting structure, the connection between the front vertical lifting supporting device 2 and the supporting frame body 3 adopts an arc-shaped plate and a cross shaft connecting structure 32, and the connecting structure overcomes the use requirement that the protection cylinder 9 of the cutting part of the heading machine needs 550mm expansion amount, not only meets the requirements of the front vertical lifting supporting structure, but also realizes the reasonable installation of the front vertical lifting supporting mode.

As shown in fig. 4 to 6, the support frame 3 of the present invention mainly includes: shaped steel draw-in groove 31, arc and cross axle connection structure 32, spring bow board spout 33, the hydro-cylinder 34 of lifting, spring bow board 35, spring bow board two 36, lower floor's roof beam inner tube 37, connecting rod 38, lower floor's roof beam hydro-cylinder 39, outer tie-beam 310, inlayer tie-beam 311 etc. specifically the structure is as follows:

lower beam inner tube 37 is installed respectively as a set of flexible roof beam at the both ends of lower beam hydro-cylinder 39, and three flexible roof beams of group parallel arrangement side by side between two sets of adjacent flexible roof beams are connected through two inlayer tie-beams 311 and two outer tie-beams 310 respectively, and two inlayer tie-beams 311 are located the middle part, and two outer tie-beams 310 are located both ends, form lower floor's roof beam frame structure.

The middle parts of the opposite outer connecting beams 310 are respectively provided with two groups of section steel clamping grooves 31, and each group of section steel clamping groove 31 is provided with one arc-shaped section steel 6, so that the two section steels 6 are arranged on the lower beam frame structure in a relative parallel mode. And the inner-layer connecting beams 311 are respectively provided with a push oil cylinder 34, and the top of the push oil cylinder 34 is connected with the section steel 6.

Install a set of spring bow plate on every group telescopic girder respectively, every group spring bow plate is a spring bow plate 35 and two 36 integrated configuration of two spring bow plates, it extends in spring bow plate spout 33 respectively to be located a spring bow plate 35 both ends in the middle of the position, and pass through bolted connection with spring bow plate spout 33, it extends in spring bow plate spout 33 respectively to be located two 36 one ends of spring bow plate of both sides, and with spring bow plate spout 33 sliding fit, the other end and the structural connecting rod 38 of lower floor's roof beam frame of two spring bow plates are connected, connecting rod 38 is articulated with lower floor's roof beam frame structure.

Two arc plates and a cross shaft connecting structure 32 are arranged between a group of oppositely arranged inner connecting beams 311 through connecting pieces, and the two arc plates and the cross shaft connecting structure 32 are hinged with the front vertical lifting support device 2. Two arc plates and a cross shaft connecting structure 32 are arranged on one group of telescopic beams, and the two arc plates and the cross shaft connecting structure 32 are hinged with the rear vertical lifting support device 1.

As shown in fig. 10, the connection structure 32 for the arc plate and the cross shaft includes an arc plate 321 and a cross shaft 322, the arc plate 321 disposed on the support frame 3 is disposed on the top of the cross shaft 322, the vertical shaft of the cross shaft 322 is hinged to the support frame 3, the horizontal shaft of the cross shaft 322 is hinged to the front vertical lifting support device 2 (or the rear vertical lifting support device 1), and the arc plate 321 and the cross shaft 322 are in sliding fit through surface contact under the driving of the front vertical lifting support device 2 (or the rear vertical lifting support device 1).

This support frame body 3 divide into upper and lower two-layer beam type structural style, and its concrete expression is:

1. lower beam

The front part of the lower-layer beam is additionally provided with the front vertical lifting support device 2, and simultaneously, the fundamental significance of advance support is realized, so that the front vertical lifting support device not only can support a common roadway or a roadway with a lower top plate, but also meets the use requirement of advance support of the roadway which is easy to deform and settle out of a layer.

2. Upper beam

⑴ the upper beam is designed with a section steel slot 31 which can meet the form of different section steel 6 (I-steel, beam channel steel or 29U-steel), the size of the opening of the section steel slot 31 is slightly larger than the parameter size of the section steel, and the fine adjustment is carried out when the supporting operation is met.

⑵ the design of the upper beam can satisfy the spring bow plates (spring bow plate one 35, spring bow plate two 36) of different roadway (rectangle, arch, trapezium) forms as the roof-contacting use, avoiding the situation that the square tube damages because of the uneven roof when the square tube roof-contacting is adopted before.

3. Double-layer beam connecting device

⑴ the connection between the upper and lower beams is made by four sets of lift cylinders 34 (jacks) and connecting rods 38 which can displace and deflect.

⑵ since the support frame has the function of extending the support area, three groups of double-head hydraulic oil cylinders which can be extended and retracted are installed in the lower beam, when the support frame is extended and retracted, the piston rod of the hydraulic oil cylinder drives the inner lower beam cylinder 37-the inner lower beam cylinder 37 drives the connecting rod 38-the connecting rod 38 drives the second spring bow 36, and the other end of the second spring bow 36 is installed in the second spring bow chute 33.

⑶ the four groups of lifting cylinders 34 (jacks) between the upper and lower beams adopt the connection mode of left front and left back or right front and right back as the same group of oil paths, when the situation of the coal mine underground comprehensive digging roadway is commonly called as 'male and female legs', the inclination phenomenon of the roof support generated by the oil path switching control system can be effectively solved.

⑷ the upper beam structure adopts the integrated structure mode of two groups of beams through pin shaft splicing combination, when the roof condition is fragile and not suitable for supporting two frame beams simultaneously, the two groups of combined beams can be conveniently disassembled and assembled to form a frame beam for roof supporting operation, thus greatly meeting the requirements of different coal seam operations of the same coal mine.

As shown in fig. 1-6, the installation process of the present invention is as follows:

1. the pin shafts (the pin shaft I and the pin shaft II) of the cutting part 10 of the original development machine are lengthened to form lengthened pin shafts (a lengthened pin shaft I7 and a lengthened pin shaft II 8), and the vertical overturning oil cylinder 5 and the rear vertical lifting support device 1 are respectively arranged at the two pin shafts (the lengthened pin shaft I7 and the lengthened pin shaft II 8) of the cutting part 10 of the development machine.

2. And after a front vertical lifting support device base 4 is hoop-welded on a protective barrel 9 of a cutting part 10 of the heading machine, a front vertical lifting support device 2 is installed.

3. The other ends of the front vertical lifting support device 2 and the rear vertical lifting support device 1 are respectively connected to the support frame body 3.

The working process of the invention is as follows:

one, normal support (fig. 7)

(1) After the heading machine is finished, the heading machine is stopped at a proper position according to the height and the width of different roadways, and preparation is made for the work of the shed type machine-mounted temporary supporting device.

(2) According to the requirement of a roadway empty top, a side telescopic beam (a lower beam oil cylinder 39 drives a lower beam inner cylinder 37) of a support frame body 3 extends out, 29U-shaped steel 6 (or other types of shaped steel) is placed in a section steel clamping groove 31 of the support frame body 3, the section steel 6 on the support frame body 3 stays at a position about 100mm away from a top plate in a region to be supported by adjusting a vertical overturning oil cylinder 5, a front vertical lifting support device 2 and a vertical lifting oil cylinder of a rear vertical lifting support device 1, after slight deviation adjustment from the left to the right, a multi-way valve (a lifting oil cylinder 34) is operated to lift the section steel 6 on the top plate, a certain pre-support force is applied (the pre-support force is 10-30 kN according to the technical requirements of mining engineering), and supporting legs are connected to main bearing section steel through clamping cables by workers, so that the supporting work of the roadway is completed. At the moment, the section steel positioned at the top and the two supporting legs positioned on the side surfaces are connected through the clamping cables respectively, the two clamping cables are located on the same horizontal line, and the section steel and the supporting legs are symmetrically positioned on two sides of a vertical central line.

(3) After the supporting work is finished, the supporting frame body 3, the front vertical lifting supporting device 2 and the rear vertical lifting supporting device 1 are retracted, and the tunneling machine can be immediately put into work, so that the tunneling and mining of the roadway can be continuously worked.

Secondly, roadway inclined state support (fig. 8 and 9)

In the process of mining, certain coal mine fully-mechanized excavation roadways supported by shed girders in China are influenced by roadway conditions, and the phenomenon that certain sections incline occurs, so that the phenomenon that the coal mine is commonly called as 'yin-yang legs' in a coal mine as shown in figure 8 or figure 9 often occurs after miners complete shed leg installation operation. In order to avoid the phenomenon, miners often adopt one side of the shed with high legs to dig downwards until reaching the horizontal depth of the other side, and then fall down the steel main frame body, so that the labor intensity of the workers is increased, a large amount of time is wasted, the miners need to stand below an empty roof area for operation, and the safety cannot be fully guaranteed.

Aiming at the problem, four groups of lifting oil cylinders 34 (jacks) between an upper layer beam and a lower layer beam of a supporting frame body of the shed-type machine-mounted temporary supporting device adopt a left front and left back or right front and right back connection mode as the same group of oil paths, when the condition of female legs and male legs is generated in a coal mine underground comprehensive digging roadway, the steel section main frame body is forced to artificially incline towards the other side through a switching control system of the hydraulic oil paths until a main frame beam is horizontal, and the inclination phenomenon generated by roof supporting is effectively solved. At the moment, the section steel positioned at the top and the two supporting legs positioned on the side surfaces are connected through the clamping cables respectively, two clamping cable points are not on the same horizontal line, and the section steel and the supporting legs are not symmetrically positioned on two sides of a vertical central line. Thereby, the angle of shaped steel is in time adjusted according to tunnel particular case, reaches the abundant effective connection of shaped steel and supporting leg.

The result shows that the invention relates to a roof supporting machine of a coal mine shed type tunnel, in particular to a shed type machine-mounted temporary supporting device, namely a section steel type (29U-shaped steel, I-shaped steel, beam channel steel or other), which enables the manual supporting work of the roof of the underground tunnel to be converted into mechanical operation control, and solves the problems of time waste, high danger, high labor intensity of workers and the like caused by the split work of a heading machine and the temporary supporting device. The invention relates to a shed-type machine-carried temporary supporting device which is arranged on a cutting part of a heading machine through a positioning pin shaft and is integrally connected with the heading machine, the supporting device has the operation selection modes of contracting and stretching, vertical lifting, secondary pressure application of a top board supporting frame body, left and right deflection lifting and random single-frame beam or double-frame beam operation according to the conditions of a roadway top board, particularly the stress mode of the supporting device frame body and the roadway top board adopts a spring bow plate contact mode, so that the stress state of the supporting device is fundamentally changed, and the requirement of domestic coal mines on the production of shed-type supporting operation by adopting section steel as a shed is really realized.