A kind of anti-toppling device suitable for roadway anti-scouring hydraulic support

Abstract

A kind of anti-toppling device suitable for roadway anti-bumping hydraulic support, including auxiliary support frame and lateral support component;Auxiliary support frame is fixed on the base of hydraulic support;The telescopic support leg of lateral support component is hinged with support;Ear seat is arranged on telescopic support leg;Electromagnetic lock is fixed on the base of hydraulic support, push rod one end is inserted in electromagnetic lock lock hole, the other end is hinged with ear seat;Push rod is matched with lock tongue in the lock hole of electromagnetic lock through clamping groove;First push spring is sleeved on the outside of push rod and one end is in abutment with electromagnetic lock shell, the other end is in abutment with push rod stop ring.The auxiliary support frame of the present application by X structure, can form triangular stable structure between hydraulic column, base and auxiliary support frame, ensure that hydraulic column is more stable, the ability of resistance to lateral force is stronger;Through the support leg that can quickly extend and cooperate with auxiliary support frame, reliable lateral support can be formed quickly when impact ground pressure occurs, prevent hydraulic support from tilting or toppling under lateral force.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of coal mine underground mining support equipment, in particular to a anti-toppling device suitable for a roadway anti-blast hydraulic support. BACKGROUND

[0002] Rock burst is the most serious dynamic disaster in coal mining. When rock burst occurs, the coal mining face and the roadway vibrate violently, the surrounding rock deforms and damages suddenly and rushes into the mining space, often causing support damage, equipment overturning, channel blockage and personnel casualties, etc. In order to resist rock burst in the roadway, hydraulic supports are almost used in coal mines to support the roadway, which not only enhances the anti-impact ability of the support system, but also increases the stability of the surrounding rock system.

[0003] However, due to the violent vibration during the occurrence of rock burst, some support equipment often twists or topples, which leads to the failure of support function, greatly reduces the anti-impact effect, and even further causes rock burst damage due to the instability of the support.

[0004] At present, the hydraulic supports used for rock burst resistance in the roadway mainly include unit type hydraulic support, self-moving hydraulic support, pile type hydraulic support, portal type hydraulic support and hydraulic lifting shed. Since the support height is relatively high and the base area is relatively small, when rock burst occurs and lateral impact force and vibration occur, these supports are basically difficult to maintain stability, which causes the twisting, tilting or toppling of the single hydraulic support, not only affecting normal production operation, but also causing serious economic losses.

[0005] In addition, when the hydraulic support bears lateral force due to rock burst, the hydraulic column is also prone to tilt relative to the base, which causes the hydraulic column to lose its original support strength, and further causes the collapse of the roadway or the damage of the hydraulic support, which seriously threatens the life safety of underground workers and the normal use of support equipment. SUMMARY

[0006] In view of the problems existing in the prior art, the present application provides an anti-toppling device suitable for a roadway anti-blast hydraulic support. The auxiliary support frame with X-shaped structure can form a triangular stable structure between the hydraulic column, the base and the auxiliary support frame, which ensures that the hydraulic column is more stable and has stronger resistance to lateral force. The support legs that can be quickly extended cooperate with the auxiliary support frame to quickly form reliable lateral support when rock burst occurs, prevent the hydraulic support from tilting or toppling under lateral force, and ensure the life safety of underground workers and the normal use of support equipment.

[0007] In order to achieve the above object, the present application adopts the following technical scheme: A kind of anti-toppling device suitable for roadway anti-bumping hydraulic support, including auxiliary support frame and lateral support component;The auxiliary support frame is fixedly installed on the base of hydraulic support;The lateral support component includes support, telescopic support leg, ear seat, electromagnetic lock, push rod and first thrust spring;The support is fixedly installed on auxiliary support frame;The telescopic support leg is hinged with support;The ear seat is arranged on telescopic support leg;The electromagnetic lock is fixedly installed on the base of hydraulic support, one end of the push rod is inserted into the lock hole of electromagnetic lock, and the other end of the push rod is hinged with ear seat;A plurality of clamping grooves are provided on the rod body of the push rod along the length direction, and the clamping grooves are matched with the lock tongue clamping position in the lock hole of electromagnetic lock;The first thrust spring is sleeved on the outside of push rod, one end of first thrust spring is in contact with the top of electromagnetic lock shell, and the other end of first thrust spring is in contact with the top of stop ring on push rod.

[0008] Gyroscope and intelligent controller are installed in the electromagnetic lock, the data signal output end of gyroscope is electrically connected with the data signal input end of intelligent controller, and the control signal output end of intelligent controller is electrically connected with the control signal input end of electromagnetic lock.

[0009] The telescopic support leg includes upper support leg, lower support leg and second thrust spring;The upper support leg is hinged on the support;The lower support leg is inserted into the inside of upper support leg, and the lower end of lower support leg extends to the outside of upper support leg, and the lower support leg has telescopic movement degree of freedom relative to upper support leg;The second thrust spring is located in the inside of upper support leg and lower support leg, one end of second thrust spring is in contact with the top of upper support leg, and the other end of second thrust spring is in contact with the top of lower support leg;The ear seat is fixedly installed on the lower end of upper support leg.

[0010] Lower support leg reset drive cylinder is arranged in the inside of second thrust spring, one end of lower support leg reset drive cylinder is fixedly connected with upper support leg, the other end of lower support leg reset drive cylinder is fixedly connected with lower support leg, and the control signal input end of lower support leg reset drive cylinder is electrically connected with the control signal output end of intelligent controller.

[0011] Clamping component is arranged between the upper support leg and lower support leg;The clamping component includes clamping block, clamping hole and clamping block push spring;Clamping block storage tank is arranged on the upper part of lower support leg;The clamping hole is arranged on the lower part of upper support leg, and the size of clamping hole, clamping block and clamping block storage tank is same;One end of clamping block push spring is in contact with the top of clamping block storage tank groove bottom, and the other end of clamping block push spring is in contact with the top of clamping block;When the clamping block storage tank and clamping hole are staggered and distributed, the clamping block is located in clamping block storage tank;When the clamping block storage tank and clamping hole are opposite and distributed, the clamping block is located in clamping hole.

[0012] The clamping block reset electromagnet is located in the inside of the clamping block push spring, and the control signal input end of the clamping block reset electromagnet is electrically connected with the control signal output end of the intelligent controller.

[0013] The support is provided with a limiting baffle for limiting the swing angle of the upper support leg.

[0014] The auxiliary support frame adopts an X-shaped structure, hydraulic stands are located in hydraulic stand limiting grooves in the upper ends of two supporting arms of the auxiliary support frame, and hydraulic stand limiting blocks are located outside the hydraulic stand limiting grooves and are fixedly connected with the auxiliary support frame through limiting pins.

[0015] The number of the lateral support assemblies is two, and the two lateral support assemblies are mirror-symmetrically distributed relative to the auxiliary support frame.

[0016] The beneficial effects of the present application are as follows:

[0017] The anti-toppling device suitable for the roadway anti-burst hydraulic support of the present application can form a triangular stable structure among the hydraulic stand, the base and the auxiliary support frame through the X-shaped auxiliary support frame, so that the hydraulic stand is more stable and has stronger resistance to lateral force; the reliable lateral support can be quickly formed when the impact ground pressure occurs through the support leg capable of being quickly extended and the auxiliary support frame, so that the hydraulic support is prevented from tilting or toppling under the lateral force, and the life safety of the underground workers and the normal use of the supporting equipment are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 Fig. 1 is a structural schematic view of the anti-toppling device suitable for the roadway anti-burst hydraulic support of the present application (the telescopic support leg is in the extended state);

[0019] Fig. 2 Fig. 2 is a structural schematic view of the anti-toppling device suitable for the roadway anti-burst hydraulic support of the present application (the telescopic support leg is in the retracted state);

[0020] Fig. 3 Fig. 3 is a structural schematic view of the lateral support assembly of the present application;

[0021] Fig. 4 Fig. 4 is a structural schematic view (cross section) of the lateral support assembly of the present application;

[0022] Fig. 5 Fig. 5 is a structural schematic view (cross section) of the telescopic support leg (retracted state) of the present application;

[0023] Fig. 6 Fig. 6 is a structural schematic view of the auxiliary support frame of the present application;

[0024] In the figure, 1 - auxiliary support frame, 2 - support, 3 - ear seat, 4 - electromagnetic lock, 5 - push rod, 6 - first push spring, 7 - clamping groove, 8 - stop ring, 9 - upper leg, 10 - lower leg, 11 - second push spring, 12 - clamping block, 13 - clamping hole, 14 - clamping block push spring, 15 - clamping block storage tank, 16 - limit baffle, 17 - hydraulic column limiting groove, 18 - hydraulic column limiting block, 19 - limiting pin, 20 - hydraulic column, 21 - lower leg reset drive cylinder, 22 - clamping block reset electromagnet. DETAILED DESCRIPTION

[0025] The application will be further described in detail below in combination with the drawings and specific embodiments.

[0026] As Figs. 1-6 shown, an anti-toppling device suitable for a roadway anti-impact hydraulic support, comprising an auxiliary support frame 1 and a lateral support assembly; the auxiliary support frame 1 is fixedly installed on the base of the hydraulic support; the lateral support assembly comprises a support 2, a telescopic support leg, an ear seat 3, an electromagnetic lock 4, a push rod 5 and a first push spring 6; the support 2 is fixedly installed on the auxiliary support frame 1; the telescopic support leg is hingedly connected with the support 2; the ear seat 3 is arranged on the telescopic support leg; the electromagnetic lock 4 is fixedly installed on the base of the hydraulic support, one end of the push rod 5 is inserted into the lock hole of the electromagnetic lock 4, and the other end of the push rod 5 is hingedly connected with the ear seat 3; a plurality of clamping grooves 7 are arranged on the rod body of the push rod 5 along the length direction, and the clamping grooves 7 are matched with the lock tongue clamping of the lock hole of the electromagnetic lock 4; the first push spring 6 is sleeved outside the push rod 5, one end of the first push spring 6 is in abutting contact with the shell of the electromagnetic lock 4, and the other end of the first push spring 6 is in abutting contact with the stop ring 8 on the push rod 5.

[0027] A gyroscope and an intelligent controller are installed inside the electromagnetic lock 4, the data signal output end of the gyroscope is electrically connected with the data signal input end of the intelligent controller, and the control signal output end of the intelligent controller is electrically connected with the control signal input end of the electromagnetic lock 4.

[0028] The telescopic support leg comprises an upper leg 9, a lower leg 10 and a second push spring 11; one end of the upper leg 9 is hingedly connected with the support 2; the lower leg 10 is inserted into the inside of the upper leg 9 at the upper end, the lower end of the lower leg 10 extends to the outside of the upper leg 9, and the lower leg 10 has a telescopic movement degree of freedom relative to the upper leg 9; the second push spring 11 is located inside the upper leg 9 and the lower leg 10, one end of the second push spring 11 is in abutting contact with the upper leg 9, and the other end of the second push spring 11 is in abutting contact with the lower leg 10; the ear seat 3 is fixedly installed on the lower end of the upper leg 9.

[0029] A lower leg reset drive cylinder 21 is arranged inside the second thrust spring 11, one end of the lower leg reset drive cylinder 21 is fixedly connected with the upper leg 9, the other end of the lower leg reset drive cylinder 21 is fixedly connected with the lower leg 10, and the control signal input end of the lower leg reset drive cylinder 21 is electrically connected with the control signal output end of the intelligent controller.

[0030] A clamping component is arranged between the upper leg 9 and the lower leg 10, the clamping component comprises a clamping block 12, a clamping hole 13 and a clamping block push spring 14, a clamping block storage groove 15 is arranged on the upper part of the lower leg 10, the clamping hole 13 is arranged on the lower part of the upper leg 9, the clamping hole 13, the clamping block 12 and the clamping block storage groove 15 have the same size, one end of the clamping block push spring 14 is in contact with the bottom of the clamping block storage groove 15, and the other end of the clamping block push spring 14 is in contact with the clamping block 12, when the clamping block storage groove 15 and the clamping hole 13 are distributed staggered to each other, the clamping block 12 is located in the clamping block storage groove 15, and when the clamping block storage groove 15 and the clamping hole 13 are distributed opposite to each other, the clamping block 12 is located in the clamping hole 13.

[0031] A clamping block reset electromagnet 22 is fixedly arranged in the clamping block storage groove 15, the clamping block reset electromagnet 22 is located inside the clamping block push spring 14, and the control signal input end of the clamping block reset electromagnet 22 is electrically connected with the control signal output end of the intelligent controller.

[0032] The support 2 is provided with a limiting baffle 16 for limiting the swing angle of the upper leg 9.

[0033] The auxiliary support frame 1 adopts an X-shaped structure, hydraulic column limiting grooves 17 are arranged on the upper ends of two supporting arms of the auxiliary support frame 1, hydraulic columns 20 are located in the hydraulic column limiting grooves 17, hydraulic column limiting blocks 18 are arranged outside the hydraulic column limiting grooves 17, and the hydraulic column limiting blocks 18 are fixedly connected with the auxiliary support frame 1 through limiting pins 19.

[0034] The number of the lateral support components is two, and the two lateral support components are distributed in mirror symmetry relative to the auxiliary support frame 1.

[0035] The use process of the application will be described below in combination with the drawings:

[0036] When the hydraulic support is normally working, the telescopic supporting legs of the lateral support component are in the contracted state, the lower end of the lower leg 16 abuts against the upper surface of the base of the hydraulic support, and the insertion depth of the push rod 5 in the lock hole of the electromagnetic lock 4 is maximum.

[0037] When rock burst occurs, the hydraulic column 20 is easy to tilt, and the tilt angle of the hydraulic column 20 is monitored in real time by the gyroscope. Once the tilt angle of the hydraulic column 20 exceeds the early warning value, the intelligent controller will send a start signal to the electromagnetic lock 4 in the first time. After receiving the start signal, the electromagnetic lock 4 will quickly control the lock tongue to retreat, so that the lock tongue is separated from the clamping groove 7, and then the push rod 5 is unlocked.

[0038] After the push rod 5 is unlocked, the spring force of the first push spring 11 is quickly released, and then the push rod 5 is pushed out under the spring force.

[0039] With the outward pushing of the push rod 5, the upper leg 9 is driven to swing outward around the hinge shaft on the support 2 until the upper leg 9 abuts against the limiting baffle 12.

[0040] At the same time, with the swing of the upper leg 9, the lower end of the lower leg 10 is separated from the restriction on the upper surface of the hydraulic support base, the spring force of the second push spring is quickly released, and then the lower leg 10 is pushed out from the inside to the outside of the upper leg 9.

[0041] With the outward pushing of the lower leg 10, the clamping block 12 moves together with the lower leg 10. When the clamping block 12 moves to the position of the clamping hole 13, the spring force of the clamping block pushing spring 14 is quickly released, and under the spring pushing force, the clamping block 12 quickly enters the clamping hole 13 from the clamping block storage groove 15, thereby completing the limiting and fixing of the lower leg 10.

[0042] When the two telescopic support legs complete the swing and realize the elongation, they can cooperate with the auxiliary support frame 1 to form effective lateral support, thereby preventing the hydraulic support from tilting or falling under lateral force, and ensuring the support reliability.

[0043] When the staff inspects the well, for the hydraulic support that has occurred tilt, need to re-straighten it, and in the process of straightening the hydraulic support, the gyroscope monitoring the hydraulic column 20 tilt angle will be quickly lower than the warning value, at this time the intelligent controller will first time to the card block reset electromagnet 22 send start signal, card block reset electromagnet 22 produces magnetic attraction, through the magnetic attraction to card block 12 is pulled back to the card block storage tank 15, card block 12 away from the card hole 13, the lower leg 10 release limit, then the intelligent controller will send start signal to the lower leg reset drive cylinder 21, the lower leg reset drive cylinder 21 retraction and generate pull force on the lower leg 10, until the lower leg 10 is pulled back to the initial position, card block reset electromagnet 22 power off, then by the staff to assist the upper leg 9 inwards to the original position, the lower leg 16 lower end re-against the hydraulic support base on the surface, push rod 5 in the electromagnetic lock 4 lock hole to restore the maximum insertion depth, finally the intelligent controller to electromagnetic lock 4 send locking signal, the lock tongue of electromagnetic lock 4 extends, re-locking push rod 5, at the same time the lower leg reset drive cylinder 21 restore free state, anti-toppling device complete reset.

[0044] The scheme in the embodiment is not used to limit the patent protection scope of the application, and any equivalent implementation or change without departing from the application is included in the patent scope of the application.

Claims

1. A device for preventing tipping of a hydraulic support for a tunnel, characterized in that: The auxiliary support frame is fixedly installed on the base of the hydraulic support, and the lateral support assembly comprises a support base, a telescopic support leg, an ear seat, an electromagnetic lock, a push rod and a first push spring.

2. The anti-toppling device for the hydraulic support against the impact in the roadway according to claim 1, characterized in that: A gyroscope and an intelligent controller are installed inside the electromagnetic lock, the data signal output end of the gyroscope is electrically connected with the data signal input end of the intelligent controller, and the control signal output end of the intelligent controller is electrically connected with the control signal input end of the electromagnetic lock.

3. The anti-toppling device for the hydraulic support against the impact in the roadway according to claim 1, characterized in that: The support base is provided with a limiting baffle for limiting the swing angle of the upper support leg.

4. The anti-toppling device for the hydraulic support against the impact in the roadway according to claim 1, characterized in that: The auxiliary support frame adopts an X-shaped structure, hydraulic columns are located in the hydraulic column limiting grooves, and hydraulic column limiting blocks are arranged outside the hydraulic column limiting grooves and fixedly connected with the auxiliary support frame through limiting pins.

5. The anti-toppling device for the hydraulic support against the impact in the roadway according to claim 1, characterized in that: ​ 6. The anti-toppling device for the hydraulic support against the impact in the roadway according to claim 1, characterized in that: The lateral support assembly is two sets, and the two sets of lateral support assemblies are mirror-symmetrically distributed relative to the auxiliary support frame.

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