CN211397625U - Tunnel temporary support device - Google Patents
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- CN211397625U CN211397625U CN201922324783.XU CN201922324783U CN211397625U CN 211397625 U CN211397625 U CN 211397625U CN 201922324783 U CN201922324783 U CN 201922324783U CN 211397625 U CN211397625 U CN 211397625U
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Abstract
The utility model discloses a tunnel temporary support device, its technical scheme is: the front end headstock, the rear end headstock, the push-pull jack, the suspension beam and the n middle frames are portal supports, and each portal support comprises a top beam, a base and an upright column; the top end of the upright post is hinged with the top beam, and the bottom end of the upright post is hinged with the base; the front end head frame, the rear end head frame and the top beams of the adjacent middle frames are respectively connected through a push-pull jack, and lifting rings are arranged below the top beams connected to the two ends of the push-pull jack; the suspension beam penetrates through the suspension ring, and one end of the suspension beam is hinged with a third middle frame counted forwards or backwards from the end frame; when n is more than or equal to 3, the top beams of the two adjacent odd-numbered middle frames and the top beams of the two adjacent even-numbered middle frames are respectively connected into a whole by a connecting rod. The utility model discloses can realize strutting when roof, two group and bottom plate in the tunnel, take a step from moving, the angle change that can better adaptation tunnel trend, support stability is good.
Description
Technical Field
The utility model relates to a tunnel support field especially relates to a tunnel temporary support device.
Background
The roadway temporary reinforced support, in particular to the advance support of the coal face crossheading is the work which has the most manpower, the largest labor intensity of workers, the worst working environment and the most serious safety threat in the existing mechanized coal mining working face, the problem of the advance support always puzzles the safety production of domestic and overseas coal mines, along with the continuous deepening of the coal mining depth, the problems of mine pressure and rock burst become more and more serious, the strength and the range of the temporary reinforced support needed by the crossheading and the construction roadway of the coal mining working face are larger and larger, the workload of the temporary reinforced support of the roadway is larger and more manpower is used, especially, the rubber belt is crossheading and tunneling a tunnel, large-scale equipment such as a reversed loader, a crusher, a tunneling machine, a belt conveyer and the like are arranged in the tunnel, the space is narrow, temporary reinforcing and supporting of the tunnel are more difficult, a reliable temporary reinforcing and supporting mode in the region is researched and solved, mechanization and automation are realized, and construction operators are reduced as much as possible, so that the rubber belt is particularly urgent.
The existing temporary reinforcing support forms of the roadway mainly comprise a steel shed, a single hydraulic prop, a stepping self-moving advance support hydraulic support, a door type anti-impact support, a pier type anti-impact support, a unit support, a sliding support supported along the roadway and the like. The steel shed and the single pillars are used for supporting, so that the supporting strength is low, the labor intensity of workers is high, more workers are used, and the efficiency is low; although the hydraulic advance support supported along the roadway direction has high support strength, repeated support and crushing of the anchor rod and the anchor cable of the roadway easily cause loosening and damage of a top plate, so that the anchor rod and the anchor cable support is prevented from being damaged; the door type anti-impact support can support roadway surrounding rocks in an all-around manner, is high in support strength and good in stability, but is difficult to install, remove and carry, and is difficult to realize mechanization, a large number of workers are used, the support can keep a certain space in the roadway after being deformed under the direct action of impact load, but the deformed support can only be cut and removed by firing, and therefore, the door type anti-impact support is not popularized and applied; the pier-type anti-impact bracket and the unit bracket are novel supporting modes which are popularized and applied more in recent years, particularly the unit bracket supporting can realize front supporting and back returning, and the repeated supporting and crushing of a roadway anchor rod and an anchor cable by advance supporting are avoided, however, the existing pier-type anti-impact bracket and the unit bracket have poor supporting stability, are difficult to carry, require more people for frame moving operation and have high labor intensity; the existing sliding support supported along the roadway cannot adapt to the angle change of the roadway due to the fact that the top beam is along the direction of the roadway, and the roof connecting effect is poor.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides a tunnel temporary support device can realize strutting when roof, two group and bottom plate in the tunnel, and the angle that can better adaptation tunnel trend changes, and support stability is good.
The utility model adopts the following technical proposal:
a temporary supporting device for a roadway comprises a front end headstock, a rear end headstock, n (n is a natural number) intermediate frames, a push-pull jack, a suspension beam and a connecting rod, wherein the front end headstock, the rear end headstock and the intermediate frames are all portal supports for transversely supporting surrounding rocks along the roadway and respectively comprise a top beam, a base and stand columns on two sides; the top end of the upright post is hinged with the top beam, and the bottom end of the upright post is hinged with the base;
the front end head frame and the rear end head frame are respectively connected with the top beams of the adjacent middle frames through push-pull jacks arranged along the trend, and lifting rings are arranged below the top beams connected to the two ends of the push-pull jacks; the suspension beam penetrates through the suspension ring, and one end of the suspension beam is hinged with a third frame counted from the end head forwards or backwards; when n is more than or equal to 3, two odd-numbered middle frame top beams and two even-numbered middle frame top beams are connected into a whole by two connecting rods respectively; the alternate stepping forward movement of each group of odd number intermediate frames and even number intermediate frames is realized by pushing and pulling the jacks forwards or backwards; when n is less than or equal to 2 (at the moment, the intermediate frames are not connected in a connecting rod mode), the intermediate frames slide forwards from the suspension beam after falling.
Furthermore, the middle frames are divided into a plurality of groups, each group of first frames is a group of last frames, each group of first frames is connected with the adjacent frames through a suspension beam, the suspension beam penetrates through the lifting rings, one end of the suspension beam is hinged to a third frame which starts to count backwards from the first frames, the top beams of each group of first frames and the adjacent middle frames behind the first frames are connected through push-pull jacks arranged along the moving direction, and the lifting rings are arranged below the top beams connected to the two ends of the push-pull jacks.
Furthermore, the base at the lower part of the two upright posts of the portal support is replaced by a bottom beam, and the two upright posts are respectively hinged above the end part close to the bottom beam.
Furthermore, two ends of the top beam are respectively hinged with one end of the side guard beam, and the other end of the side guard beam is hinged with the side guard plate; and a side support jack is hinged between the top beam and the side guard beam.
Furthermore, two ends of the top beam are respectively hinged with one end of the upper side guard beam, and the other end of the upper side guard beam is hinged with the upper side guard plate; an upper side support jack is hinged between the top beam and the upper side guard beam; two ends of the bottom beam are respectively hinged with one end of the lower side guard beam, and the other end of the lower side guard beam is hinged with the lower side guard plate; and a lower side support jack is hinged between the bottom beam and the lower side guard beam.
Furthermore, guide cylinders are respectively arranged in the upper side protective plate and the lower side protective plate, the lower opening of the guide cylinder of the lower side protective plate is sealed by a sealing plate, and a square beam is inserted between the guide cylinder of the upper side protective plate and the guide cylinder of the lower side protective plate, so that the upper side protective plate, the lower side protective plate and the square beam form an integral common supporting roadway wall;
furthermore, the upper end of the square beam is provided with a limit baffle, when the support lifting frame and the side guard beam are laterally opened, the upper side guard plate drives the square beam to move upwards through the limit baffle, and when the support lifting frame and the side guard beam are laterally retracted, the square beam falls on the lower side guard plate guide cylinder.
Further, door-type support is pi type or pi type, and wherein, pi type door-type support center pillar is close to the back timber tip with the hookup location of back timber, and pi type door-type support center pillar sets for the distance apart from the back timber tip with the hookup location of back timber.
Furthermore, the hydraulic control system of the combined support adopts a common hydraulic valve group or an electro-hydraulic valve group or an electromagnetic valve group, and the control mode is grouping control or centralized control or remote control in a virtual reality visualization mode through a program.
An operation method of a roadway temporary support device comprises the following steps:
(1) lowering the rear end frame, retracting the rear end frame, pushing and pulling the jack, enabling the rear end frame to slide forwards from the suspension beam, and lifting the rear end frame;
(2) lowering the even-numbered intermediate frames, and retracting the push-pull jacks between the intermediate frames and the rear end frames to enable all the even-numbered intermediate frames to slide forwards from the connecting rods among the odd-numbered intermediate frames and lift all the even-numbered intermediate frames;
(3) lowering odd-numbered intermediate frames, retracting the front end frame push-pull jack, enabling all odd-numbered intermediate frames to slide forwards from the connecting rods among the even-numbered intermediate frames, and lifting all odd-numbered intermediate frames;
(4) lowering the front end head frame, and stretching the front end head frame to push and pull the jack so as to enable the front end head frame to slide forwards from the suspension beam;
(5) and (5) repeating the steps (1) to (4) to enable the combined support to be pushed along with the stope face.
Further, dividing the intermediate frames into a plurality of groups, repeating the steps (2) to (3), and sequentially completing the operations of frame descending, frame moving and frame ascending of each group of intermediate frames.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model solves the problem of repeatedly supporting and crushing the anchor rods and the anchor cables in the prior art, the novel portal support can avoid the anchor rods and the anchor cables to be erected between each row of anchor rods and the anchor cables, avoids repeatedly supporting and crushing the anchor rods and the anchor cables, adopts the working parameters of small initial supporting force and large working resistance, and can also avoid repeatedly supporting and unloading the damage to the surrounding rocks of the roadway;
(2) the utility model solves the effective control problem of the tunnel roof, the two sides and the bottom plate, and can select the portal supports with corresponding forms according to the mine pressure display characteristics of the tunnel, thereby realizing the simultaneous support of the tunnel roof, the two sides and the bottom plate;
(3) the utility model solves the roadway reinforcing support problem of various devices in the roadway, the portal support of the utility model can span devices such as a loader, a crusher, a belt conveyor and a heading machine to support the roadway top wall;
(4) the utility model solves the problems of large mine pressure and serious tunnel deformation in the prior art, can realize active support and yielding support, and has strong adaptability to the shrinkage deformation of the tunnel section;
(5) the utility model solves the roof connecting problem of roadway slope change in the prior art, the connecting rods between the combined bracket frame and the frame are hinged, which can better adapt to the angle change of the roadway trend and ensure the roof connecting and the side connecting one by one;
(6) the utility model solves the problem of the stability of the bracket in the prior art, the bracket and the bracket are connected into a whole through the connecting rod or the push-pull jack, and the supporting stability is good;
(7) the utility model solves the problem of the movement of the bracket in the prior art, the operation of lifting and transferring the bracket is simple and convenient, and the operation of the valve group can be completed;
(8) the utility model solves the contradiction problem between the temporary reinforced support and the facilities in the tunnel in the prior art, and the facilities such as the pipe cable, the air duct and the like in the tunnel can be hung below the odd number or even number of supports and move along with the movement of the lifting and the transferring of the supports;
(9) the utility model solves the automation and intellectualization problems of roadway reinforcing support in the prior art, and realizes the visual remote control of virtual reality by adopting electro-hydraulic control;
(10) the utility model solves the problems of more manpower and high labor intensity in the prior art, has less manpower and low labor intensity, and really liberates workers from high-risk severe environment;
(11) the utility model solves the parallel operation problem of the integrated tunnel digging and anchoring in the prior art, supports the working area of the integrated tunnel digging machine by the hydraulic combined support, and can realize the parallel operation of front cutting and rear anchoring of the digging machine;
(12) the utility model provides an among the prior art automatic shop top net problem of tunnelling, hang the net book in hanging in midair the roof beam front end, along with support antedisplacement net can expand automatically and spread on the support top, can realize automatic shop net.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a front view of a roadway temporary reinforcing and supporting hydraulic combined support in an embodiment of the present invention;
fig. 2 is a top view of a roadway temporary reinforcing support hydraulic combined support in an embodiment of the present invention;
fig. 3 is a left side view of a roadway temporary reinforcing and supporting hydraulic combined support in an embodiment of the present invention;
fig. 4 is a sectional view of a hydraulic support assembly for temporary reinforcing and supporting a roadway according to an embodiment of the present invention;
fig. 5 is a plan view of the hydraulic combined support for temporary reinforcing and supporting a roadway according to the embodiment of the present invention;
fig. 6(a) -6(c) are three views of a common door type bracket according to an embodiment of the present invention;
FIGS. 7(a) -7(c) are three views of a door type support with a side guard plate according to an embodiment of the present invention;
8(a) -8(c) are three views of the door type support with bottom beams according to the embodiment of the present invention;
FIGS. 9(a) -9(c) are three views of a door type support with a bottom beam and an upper side guard plate according to an embodiment of the present invention;
FIGS. 10(a) -10(c) are three views of a door type support with bottom beams and upper and lower side guards according to an embodiment of the present invention;
FIG. 10(d) is a cross-sectional view A-A of FIG. 10 (a);
FIGS. 11(a) -11(c) are three views of a Pi-shaped door bracket with a bottom beam and upper and lower side guards integrated according to an embodiment of the present invention;
FIG. 11(d) is a cross-sectional view A-A of FIG. 11 (a);
FIGS. 12(a) -12(c) are three views of a five-belt bottom beam and an arc arched door type support with upper and lower side guards as a whole according to an embodiment of the present invention;
FIG. 12(d) is a cross-sectional view A-A of FIG. 12 (a);
the device comprises a front end head frame, a rear end head frame, a middle frame, a push-pull jack, a suspension beam, a connecting rod, a front end head frame, a rear end head frame, a middle frame, a push-pull jack, a suspension beam, a rear end;
1. top beam, 2, stand, 3, base, 4, articulated seat, 5, rings, 6, hydraulic control valves, 7, floorbar, 8, upside prop the jack, 9, upside fender beam, 10, upside backplate, 11, downside prop the jack, 12, downside fender beam, 13, downside backplate, 14, guide cylinder, 15, square beam, 16, seal board, 17, limit baffle.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
the front end headstock, rear end headstock, intermediate frame, push-and-pull jack, suspension girder, connecting rod, back timber, stand, floorbar, articulated seat, rings, hydraulic control valves and pipeline, upside prop jack, upside guard beam, upside backplate, downside and prop jack, downside guard beam, square beam, seal board, limit baffle in this application are named according to its function for the descriptive convenience, do not inject its structure.
The first embodiment is as follows:
as shown in fig. 1 to 6, the embodiment provides a temporary supporting device for a roadway, which includes a front end head frame I, a rear end head frame II, n (n is a natural number, and n is greater than or equal to 3) intermediate frames III, a push-pull jack iv, a suspension beam v, and a connecting rod vi, where the front end head frame I, the rear end head frame II, and the intermediate frames III are all portal supports for supporting surrounding rocks of the roadway along the roadway in a transverse direction, and include a top beam 1, two side columns 2 (single column or double columns), a base 3, a hydraulic control valve group 6, and the like.
Wherein, the upper ends of the upright columns 2 at two sides are hinged with the top beam 1, and the lower ends of the upright columns 2 are hinged with the base 3; the front end head frame I and the rear end head frame II are respectively connected with the top beam 1 of the adjacent middle frame III by two push-pull jacks IV along the trend, and the push-pull jacks IV are hinged with the top beam. Hanging rings 5 are respectively arranged below the two top beams I connected with the push-pull jack IV, the suspension beam V penetrates through the hanging rings 5 below the two top beams 1 connected with the push-pull jack IV, a hinge base 4 is arranged below the top beam 1 of the middle frame III separated from the front end frame I (the rear end frame II) by a support, and one end of the suspension beam V is hinged to the hinge base 4.
When n is less than or equal to 2 (at the moment, the middle frames III are not connected in a connecting rod mode), the middle frames III slide forwards from the suspension beam V after descending.
When n is more than or equal to 3, the intermediate frames III are numbered in sequence in the embodiment, two odd intermediate frame III top beams 1 and two even intermediate frame III top beams 1 are respectively connected into a whole by two connecting rods VI, and two ends of each connecting rod VI are hinged with a hinge seat 4 arranged below the top beams 1. And the distance between the connecting rod VI and the top beam 1 is greater than that of the exposed part of the anchor rod and the anchor cable at the top of the roadway, so that the support can conveniently pass through the anchor rod and the anchor cable. And the pipe cable, the air duct and other facilities in the roadway can be hung below the odd-numbered or even-numbered brackets. The net roll is hung at the front end of the suspension beam V, and the net can be automatically unfolded and paved on the top of the bracket along with the forward movement of the bracket, so that automatic net paving can be realized.
According to the traction force of the push-pull jacks IV, the weight of the support and the inclination angle of the roadway, when the intermediate frame III is more, the intermediate frame III can be divided into a plurality of groups, a plurality of push-pull jacks IV are additionally arranged between the odd number frames and the even number frames in pairs, and simultaneously, the push-pull jacks IV are controlled to push forwards or pull backwards so that all the odd number frames and all the even number frames move forwards in an alternating stepping mode integrally.
As shown in fig. 4 and 5, according to the traction force of the push-pull jacks iv, the weight of the support and the inclination angle of the roadway, when the intermediate frame III is large, the intermediate frame III can be divided into a plurality of groups to move in groups, that is, each group of first frame is a group of last frame, the connecting rod vi between each group of first frame and the next frame is replaced by a suspension beam v, one end of the suspension beam v is hinged on a hinge seat 4 below the top beam 1 of the intermediate frame III of the first frame spaced by one support, two push-pull jacks iv are arranged between each group of first frame and the next adjacent frame, the two top beams 1 connecting the push-pull jacks iv are respectively provided with a hanging ring 5 below, the suspension beam v passes through the hanging ring 5, and the push-pull jacks iv are adopted to push or pull forward, so as to realize the alternate stepping forward movement of each group of odd number frames and even number frames.
The hydraulic control valve group 6 and the pipeline are installed on the inner side of the upright post 6, the hydraulic control system of the combined support is a control system adopting a common hydraulic valve group or an electro-hydraulic valve group or an electromagnetic valve group, and the control mode is group control or centralized control or remote control in a virtual reality visualization mode through a program.
Numbering from back to front in the advancing direction, and moving the frame as follows:
(1) and lowering the rear end frame II, retracting a push-pull jack IV of the rear end frame II, enabling the rear end frame II to slide forwards from the suspension beam V, and lifting the rear end frame II.
(2) And (3) lowering the even-numbered middle frames III, and retracting the push-pull jacks IV between the middle frames III and the rear end head frames II to enable all the even-numbered middle frames III to slide forwards from the connecting rods VI between the odd-numbered middle frames III and lift all the even-numbered middle frames III.
(3) And (3) lowering the odd-numbered intermediate frames III, and retracting the front end head frame I to push and pull the jack IV, so that all the odd-numbered intermediate frames III slide forwards from the connecting rod VI among the even-numbered intermediate frames III, and lifting all the odd-numbered intermediate frames III.
(4) And lowering the front end head frame I, and stretching the front end head frame I to push and pull the jack IV so as to enable the front end head frame I to slide forwards from the suspension beam V.
The combined support moves by one step pitch, and the steps are repeated, so that the combined support can be pushed along with the stope face. If the number of the middle frames III is more, the middle frames III can be divided into a plurality of groups, and the steps (2) and (3) are repeated to sequentially complete the operation of frame descending, frame moving and frame ascending of each group of middle frames III.
Example two:
as shown in fig. 7(a) -7(c), an upper side support jack 8, an upper side guard beam 9 and an upper side guard plate 10 are arranged on two sides of the bracket, one end of the upper side support jack 8 is hinged below the top beam 1, the other end of the upper side support jack 8 is hinged with the upper side guard beam 9, the upper end of the upper side guard beam 9 is hinged with the end of the top beam 1, and the lower end of the upper side guard beam 9 is hinged with the upper side guard plate 10.
Other structures are the same as those of the first embodiment, and are not described herein again.
Example three:
as shown in fig. 8(a) -8(c), in order to prevent bottom of roadway deformation, base 3 below two columns 2 of the portal support is replaced by bottom beam 7, and the two columns 2 are hinged to the upper portions close to the two ends of bottom beam 7 respectively.
Other structures are the same as those of the embodiment and are not described herein again.
Example four:
as shown in fig. 9(a) -9(c), an upper side supporting jack 8, a lower side supporting jack 11, an upper side guard beam 9, a lower side guard beam 12, an upper side guard plate 10, and a lower side guard plate 13 are respectively arranged on two sides of the bracket, two ends of the top beam 1 are respectively hinged with one end of the upper side guard beam 9, and the other end of the upper side guard beam 9 is hinged with the upper side guard plate 10; an upper side supporting jack 8 is hinged between the top beam 1 and the upper side guard beam 9. Two ends of the bottom beam 7 are respectively hinged with one end of a lower side guard beam 12, and the other end of the lower side guard beam 12 is hinged with a lower side guard plate 13; a lower side support jack 11 is hinged between the bottom beam 7 and the lower side guard beam 12.
Other structures are the same as those of the embodiment, and are not described herein again.
Example five:
as shown in fig. 10(a) -10(d), two or three guide cylinders 14 are provided in the upper guard plate 10 and the lower guard plate 13, and the guide cylinders 14 are square guide cylinders. The lower opening of the guide cylinder 14 of the lower guard plate 13 is sealed by a sealing plate 16, and two or three square beams 15 enter the guide cylinder 14 of the lower guard plate 13 from the guide cylinder 14 of the upper guard plate 10, so that the upper guard plate 10, the lower guard plate 13 and the square beams 15 form an integral supporting roadway wall. The upper end of the square beam 15 is provided with a limit baffle 17, when the support frame rises and the side guard beam is laterally opened, the upper side guard plate 10 drives the square beam 15 to move upwards through the limit baffle 17, when the support frame falls and the side guard beam is laterally retracted, the square beam 15 falls on a sealing plate 16 of a lower side guard plate guide cylinder, and the sealing plate plays a role in limiting the falling of the square beam.
According to the position of stand 2 below back timber 1 be close to back timber 1 both ends, still have certain distance apart from back timber 1 both ends, divide into "pi" type, "pi" type two kinds of forms with the door-type support, wherein, fig. 10(a) -10(d) show for "pi" type door-type support, fig. 11(a) -11(d) show for "pi" type door-type support.
According to different shapes of the top beam 1, the door type support has two forms of a straight line shape and an arc arch shape, wherein the arc arch door type support is shown in figures 12(a) -12(d), and the top beam 1 is arc-shaped.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A temporary roadway supporting device is characterized by comprising a front end headstock, a rear end headstock, a push-pull jack, a suspension beam and n middle frames, wherein n is a natural number; the front end head frame, the rear end head frame and the middle frame are all portal supports for transversely supporting surrounding rocks along a roadway, and respectively comprise top beams, a base and upright columns on two sides; the top end of the upright post is hinged with the top beam, and the bottom end of the upright post is hinged with the base;
the front end head frame and the rear end head frame are respectively connected with the top beams of the adjacent middle frames through push-pull jacks arranged along the trend, and lifting rings are arranged below the top beams connected to the two ends of the push-pull jacks; the suspension beam penetrates through the suspension ring, and one end of the suspension beam is hinged with a third middle frame counted from the end head forwards or backwards;
when n is more than or equal to 3, two odd-numbered middle frame top beams and two even-numbered middle frame top beams are connected into a whole by two connecting rods respectively; a plurality of push-pull jacks are arranged between the odd frames and the even frames in pairs, and the odd intermediate frames and the even intermediate frames of each group are alternatively moved forwards or forwards after being pushed or pulled by the push-pull jacks; when n is less than or equal to 2, the middle frame descends and slides forwards from the suspension beam.
2. The temporary roadway support device according to claim 1, wherein the intermediate frames are divided into a plurality of groups, each group of the first frames is a group of the last frames, each group of the first frames is connected with the adjacent frames through a suspension beam, the suspension beam penetrates through the lifting rings, one end of the suspension beam is hinged with a third frame counted from the first frame to the rear, the top beams of each group of the first frames and the adjacent intermediate frames behind the first frames are respectively connected through push-pull jacks arranged along the trend, and the lifting rings are arranged below the top beams connected to the two ends of the push-pull jacks.
3. The temporary roadway support device according to claim 1, wherein two ends of the top beam are respectively hinged with one end of the side guard beam, and the other end of the side guard beam is hinged with the side guard plate; and a side support jack is hinged between the top beam and the side guard beam.
4. The temporary roadway support device according to claim 1, wherein bases at lower parts of two upright columns of the portal support are replaced by bottom beams, and the two upright columns are hinged above the end parts close to the bottom beams respectively.
5. The temporary roadway support device according to claim 4, wherein two ends of the top beam are respectively hinged with one end of the upper side guard beam, and the other end of the upper side guard beam is hinged with the upper side guard plate; an upper side support jack is hinged between the top beam and the upper side guard beam; two ends of the bottom beam are respectively hinged with one end of the lower side guard beam, and the other end of the lower side guard beam is hinged with the lower side guard plate; and a lower side support jack is hinged between the bottom beam and the lower side guard beam.
6. The temporary roadway support device according to claim 5, wherein guide cylinders are respectively arranged in the upper side guard plate and the lower side guard plate, and a square beam is inserted between the guide cylinder of the upper side guard plate and the guide cylinder of the lower side guard plate, so that the upper side guard plate, the lower side guard plate and the square beam form an integral common supporting roadway wall; the upper end of the square beam is provided with a limit baffle, when the support lifting frame and the side guard beam are laterally opened, the upper side guard plate drives the square beam to move upwards through the limit baffle, and when the support lifting frame and the side guard beam are laterally retracted, the falling of the square beam is limited by the lower side guard plate guide cylinder.
7. The temporary roadway support device of claim 1, wherein the portal support is pi-type or pi-type, wherein the connection position of the pillar and the top beam of the pi-type portal support is close to the end of the top beam, and the connection position of the pillar and the top beam of the pi-type portal support is a set distance away from the end of the top beam.
8. The temporary roadway support device according to claim 1, wherein the intermediate frames are divided into a plurality of groups, each group of the first frames is a group of the last frames, each group of the first frames is connected with the adjacent frames through a suspension beam, the suspension beam penetrates through the suspension rings, one end of the suspension beam is hinged with a third frame counted from the first frame to the rear, the top beams of each group of the first frames and the adjacent intermediate frames behind the first frames are respectively connected through push-pull jacks arranged along the trend, and the suspension rings are arranged below the top beams connected with two ends of the push-pull jacks.
9. The temporary roadway support device according to claim 1, wherein the hydraulic control system of the portal support is a control system adopting a common hydraulic valve group, an electro-hydraulic valve group or an electromagnetic valve group, and the control mode is a group control or a centralized control, or a remote control in a virtual reality visualization mode through a program.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922324783.XU CN211397625U (en) | 2019-12-19 | 2019-12-19 | Tunnel temporary support device |
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| CN201922324783.XU CN211397625U (en) | 2019-12-19 | 2019-12-19 | Tunnel temporary support device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253204A (en) * | 2020-10-30 | 2021-01-22 | 中国矿业大学 | Roadway temporary supporting device utilizing mine pressure and installation construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253204A (en) * | 2020-10-30 | 2021-01-22 | 中国矿业大学 | Roadway temporary supporting device utilizing mine pressure and installation construction method |
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