CN218912893U

CN218912893U - Random limiting device of heading machine

Info

Publication number: CN218912893U
Application number: CN202222825495.4U
Authority: CN
Inventors: 李�亨; 张鸿飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-04-25
Anticipated expiration: 2032-10-26

Abstract

The utility model relates to the technical field of heading machines and discloses a random limiting device of a heading machine, which comprises a base, wherein the base is positioned above the heading machine, two groups of mounting plates for mounting the base on a top cover of the heading machine are fixedly connected to the bottom of the base, a main baffle for propping against the inner wall of the top of a roadway is arranged above the base, inclined planes are arranged on the left side and the right side of the top of the main baffle, and a concave plate is arranged between the main baffle and the base. This entry driving machine stop device at random sets up the inclined plane through the left and right sides at main baffle top to set up two sets of side shield that the top is the inclined plane, make the side shield follow concave plate rise and support the top inner wall in tunnel together with main baffle, with the probability that reduces entry driving machine top tunnel inner wall and drop the broken rock, and the broken rock that drops falls at the top rear edge inclined plane landing of main baffle or side shield, thereby prevent to pile up the pressure increase that leads to the device to bear because of the broken rock, with the limiting displacement that the guarantee device provided for the entry driving machine.

Description

Random limiting device of heading machine

Technical Field

The utility model relates to the technical field of heading machines, in particular to a random limiting device of a heading machine.

Background

During coal roadway tunneling, impact ground pressure is frequently generated due to factors such as tunneling disturbance, burial depth, construction and the like, tunnel damage, equipment displacement or damage, personnel injury and the like are caused, wherein the tunneling machine occupies large tunnel space due to large equipment size and weight, the residual safety space is smaller, and the equipment is large in weight.

When the random limiting device of the heading machine is used in the prior art for providing limiting effect for the heading machine, broken rocks can fall off frequently on the inner wall of a roadway, and the fallen broken rocks are piled up at the top of the limiting device, so that the pressure born by the limiting device is increased, and the limiting effect provided by the limiting device for the heading machine is affected.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a random limiting device of a heading machine, which solves the problem that the limiting effect provided by the limiting device for the heading machine is affected due to the fact that the pressure of the limiting device is increased because broken rocks falling are accumulated at the top of the limiting device.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a random stop device of development machine, includes the base, and the base is located the top of development machine, and two sets of mounting panels that are used for installing the base on the development machine top, the top of base is provided with the main baffle that is used for supporting tunnel top inner wall, the left and right sides at the top of main baffle all is provided with the inclined plane, be provided with the recess board between main baffle and the base, the top fixed mounting of base has the pneumatic cylinder, the output of pneumatic cylinder passes through the bottom fixed connection of coupling and recess board, the left and right sides of recess board all is provided with the side shield that a set of upper surface is the inclined plane, the equal fixedly connected with of left and right sides of recess board is used for supporting the L template of side shield, the top of L template is rather than the bottom fixed connection of top side shield, the left and right sides of pneumatic cylinder all is provided with a set of guide frame at the base top, the inner wall sliding connection of guide plate and the bottom fixed connection of recess board, the inner wall sliding connection of recess board has the loading board, the bottom fixed connection of recess board has the bottom of recess board, the bottom fixed connection of four sets of recess board and side seal plate, the bottom fixed connection of the bottom of recess board and the same-side seal plate, the bottom of the side of recess board.

Preferably, the rear side fixedly connected with guard plate of recess board, the rear side of loading board all is connected with the front side sliding of guard plate, and the rear side fixedly connected with sliding plate of loading board, the spout that supplies the sliding plate to slide has been seted up to the front side of guard plate.

Preferably, the height of the side baffle on the side far away from the concave plate is smaller than the height of the side baffle on the side close to the concave plate.

Preferably, the left and right sides of deflector all fixedly connected with two sets of spacing pieces, and the left and right sides of guide frame has all seted up two sets of spacing grooves that supply the stopper to follow the gliding in vertical direction.

Preferably, opposite sides of the two groups of side baffles are respectively connected with back-to-back sides of the two groups of lifting plates in a sliding manner, and the distance between the back-to-back sides of the two groups of lifting plates is equal to the width of the main baffle.

Preferably, the height of the lifting plates is greater than the distance from the bottom of the main baffle to the top of the concave plate, and gaps are reserved between the opposite sides of the two groups of lifting plates and the outer surface of the concave plate.

(III) beneficial effects

Compared with the prior art, the utility model provides the random limiting device of the heading machine, which has the following beneficial effects:

1. this entry driving machine stop device at random sets up the inclined plane through the left and right sides at main baffle top to set up two sets of side shield that the top is the inclined plane, make the side shield follow concave plate rise and support the top inner wall in tunnel together with main baffle, with the probability that reduces entry driving machine top tunnel inner wall and drop the broken rock, and the broken rock that drops falls at the top rear edge inclined plane landing of main baffle or side shield, thereby prevent to pile up the pressure increase that leads to the device to bear because of the broken rock, with the limiting displacement that the guarantee device provided for the entry driving machine.

2. The random limiting device for the heading machine is characterized in that after the main baffle is propped against the inner wall of a roadway, the bearing plate, the synchronous plate and the main baffle are relatively static, and then the bearing plate slides relative to the inner wall of the concave plate when the concave plate rises, so that two groups of side baffles rise to the left side and the right side of the main baffle and prop against the inner wall of the roadway, the contact area between the device and the inner wall of the roadway is increased, the limiting effect provided by the device for the heading machine is further improved, and the heading machine is prevented from moving and shaking when impacted.

3. This entry driving machine stop device at random through setting up deflector and guide frame for the deflector follows the recess board along the vertical direction motion and slides along the guide frame inner wall, and the guide frame provides spacingly for the deflector, thereby restricts the direction of motion of recess board, avoids the recess board to appear the skew because of the too big pressure that the main baffle received, thereby ensures the stability and the safety of being connected between pneumatic cylinder output and the recess board, has improved the security of device.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a quarter section of the structure of the present utility model;

fig. 3 is a schematic view of the structure of the guide plate of the present utility model.

In the figure: 1. a base; 2. a main baffle; 3. side baffles; 4. a concave plate; 5. a hydraulic cylinder; 6. a guide frame; 7. a guide plate; 8. a limiting block; 9. an L-shaped plate; 10. a protection plate; 11. a lifting plate; 12. a carrying plate; 13. a synchronizing plate; 14. a telescopic rod; 15. a sealing plate; 16. a mounting plate; 17. and a sliding plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the random limiting device of the heading machine comprises a base 1, wherein the base 1 is positioned above the heading machine, two groups of mounting plates 16 for mounting the base 1 on a top cover of the heading machine are fixedly connected to the bottom of the base 1, a main baffle plate 2 for propping against the inner wall of the top of a roadway is arranged above the base 1, inclined planes are arranged on the left side and the right side of the top of the main baffle plate 2, a concave plate 4 is arranged between the main baffle plate 2 and the base 1, a hydraulic cylinder 5 is fixedly mounted on the top of the base 1, the output end of the hydraulic cylinder 5 is fixedly connected with the bottom of the concave plate 4 through a coupler, a group of side baffle plates 3 with inclined surfaces are arranged on the left side and the right side of the concave plate 4, two groups of L-shaped plates 9 for supporting the side baffle plates 3 are fixedly connected to the left side and the right side of the concave plate 4, the top of the L-shaped plate 9 is fixedly connected with the bottom of the side baffle plate 3 above the L-shaped plate, the left and right sides of pneumatic cylinder 5 all is provided with a set of guide frame 6 of welding at base 1 top, the inner wall sliding connection of guide frame 6 has deflector 7 and the top of deflector 7 and the bottom fixed connection of recess board 4, the inner wall sliding connection of recess board 4 has loading board 12, four sets of synchronizing plates 13 of top fixedly connected with of loading board 12, the top of synchronizing plate 13 and the bottom fixed connection of main baffle 2, the bottom equidistance fixedly connected with multiunit telescopic link 14 of loading board 12 and the bottom of telescopic link 14 and the bottom inner wall fixed connection of recess board 4, the surface cover of telescopic link 14 is equipped with reset spring, the front side fixedly connected with closing plate 15 of recess board 4 bottom inner wall, the front side of loading board 12 and the rear side sliding connection of closing plate 15.

Specifically, in order to ensure the operation safety of the device, the protection plate 10 is fixedly connected to the rear side of the concave plate 4, the rear side of the bearing plate 12 is slidably connected to the front side of the protection plate 10, the sliding plate 17 is fixedly connected to the rear side of the bearing plate 12, the sliding groove for the sliding plate 17 to slide is formed in the front side of the protection plate 10, the bearing plate 12 slides along the front side of the protection plate 10 while the sliding plate 17 slides along the inner wall of the sliding groove, and the sliding plate 17 abuts against the inner wall of the sliding groove, so that the relative stability between the bearing plate 12 and the protection plate 10 is maintained.

Specifically, in order to reduce the pressure born when the device provides limit for the heading machine, the height of one side of the side baffle 3 away from the concave plate 4 is smaller than the height of one side of the side baffle 3 close to the concave plate 4, so that broken stones or soil falling from the inner wall of the top of the roadway can slide down to the left side and the right side of the device along the inclined plane on the side baffle 3.

Specifically, in order to improve stability of the device, two groups of limiting blocks 8 are fixedly connected to the left side and the right side of the guide plate 7, two groups of limiting grooves for the limiting blocks 8 to slide along the vertical direction are formed in the left side and the right side of the guide frame 6, and the limiting blocks 8 slide along the inner walls of the limiting grooves so as to maintain relative stability between the guide plate 7 and the guide frame 6.

Specifically, in order to ensure the service life of the device, opposite sides of the two sets of side baffles 3 are respectively connected with back-to-back sides of the two sets of lifting plates 11 in a sliding manner, so that the side baffles 3 are propped against the outer surfaces of the lifting plates 11, the distance between the back-to-back sides of the two sets of lifting plates 11 is equal to the width of the main baffle 2 when the main baffle 2 is pressed, when the main baffle 2 is lowered to the lowest point, the left-to-back sides of the main baffle 2 are respectively contacted with the opposite sides of the side baffles 3, so that crushed rock on the main baffle 2 rolls down to the top of the side baffles 3, the height of the lifting plates 11 is greater than the distance from the bottom of the main baffle 2 to the top of the concave plate 4, and gaps are reserved between the opposite sides of the two sets of lifting plates 11 and the outer surfaces of the concave plate 4, so that no contact relationship exists between the lifting plates 11 and the concave plate 4 when the lifting plates 11 move, and the running abrasion of the device is avoided when the main baffle 2 is pressed.

Working principle: before the tunneling machine performs tunneling of a roadway, the hydraulic cylinder 5 is started, so that the hydraulic cylinder 5 drives the concave plate 4 to descend to the lowest position, when the tunneling machine is in a non-working state, the hydraulic cylinder 5 is started, the hydraulic cylinder 5 pushes the concave plate 4 to ascend, so that the main baffle plate 2 and the side baffle plate 3 ascend, when the main baffle plate 2 butts against the inner wall of the top of the roadway, the main baffle plate 2 and the bearing plate 12 stop ascending, the concave plate 4 and the side baffle plate 3 continue ascending, the bearing plate 12 slides downwards relative to the inner wall of the concave plate 4, the telescopic rod 14 and the reset spring shrink until the top of the side baffle plate 3 contacts with the inner wall of the top of the roadway, limiting is provided for the tunneling machine, and the tunneling machine is prevented from being impacted to shake left and right.

In summary, the random limiting device for the heading machine is provided with the inclined planes at the left side and the right side of the top of the main baffle plate 2, and two groups of side baffle plates 3 with inclined planes at the top are arranged, so that the side baffle plates 3 ascend along with the concave plate 4 and prop against the inner wall of the top of a roadway together with the main baffle plate 2, the probability of falling broken rocks on the inner wall of the roadway above the heading machine is reduced, the falling broken rocks fall on the top of the main baffle plate 2 or the side baffle plate 3 and then slide along the inclined planes, the pressure born by the device is prevented from increasing due to accumulation of the broken rocks, the limiting effect provided by the device for the heading machine is ensured, the bearing plate 12 and the telescopic rod 14 are arranged, after the main baffle plate 2 props against the inner wall of the roadway, the bearing plate 12, the synchronous plate 13 and the main baffle plate 2 are relatively static, after that, when the concave plate 4 rises, the bearing plate 12 slides relative to the inner wall of the concave plate 4, so that the two groups of side baffles 3 rise to the left side and the right side of the main baffle 2 and prop against the inner wall of the roadway, the contact area between the device and the inner wall of the roadway is increased, the limiting effect provided by the device for the heading machine is further improved, the heading machine is prevented from shaking when being impacted, the guide plate 7 and the guide frame 6 are arranged, the guide plate 7 moves along the vertical direction along the concave plate 4 and slides along the inner wall of the guide frame 6, the guide frame 6 provides limiting for the guide plate 7, the movement direction of the concave plate 4 is limited, the deflection of the concave plate 4 caused by overlarge pressure borne by the main baffle 2 is avoided, the stability and safety of the connection between the output end of the hydraulic cylinder 5 and the concave plate 4 are ensured, and the safety of the device is improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a random stop device of entry driving machine, includes base (1), and base (1) are located the top of entry driving machine, and the bottom fixedly connected with of base (1) is used for installing base (1) mounting panel (16) on entry driving machine top, and the top of base (1) is provided with main baffle (2) that are used for supporting tunnel top inner wall, its characterized in that: the left and right sides at the top of main baffle (2) all is provided with the inclined plane, be provided with concave plate (4) between main baffle (2) and base (1), the top fixed mounting of base (1) has pneumatic cylinder (5), the output of pneumatic cylinder (5) is through the bottom fixed connection of shaft coupling and concave plate (4), the left and right sides of concave plate (4) all is provided with a set of side shield (3) that the upper surface is the inclined plane, the left and right sides of concave plate (4) all fixedly connected with two sets of L template (9) that are used for supporting side shield (3), the bottom fixed connection of L template (9) top and top side shield (3) thereof, the left and right sides of pneumatic cylinder (5) all is provided with a set of guide frame (6) of welding at the base (1) top, the inner wall sliding connection of guide frame (6) has guide plate (7) and the bottom fixed connection of guide plate (7), the inner wall sliding connection of concave plate (4) has two sets of L template (12) that are used for supporting side shield (3), the top of bearing plate (12) is connected with the top of four fixed connection of main baffle (13) with top (13), the bottom equidistance fixedly connected with multiunit telescopic link (14) of loading board (12) and the bottom of telescopic link (14) and the bottom inner wall fixed connection of concave plate (4), the surface cover of telescopic link (14) is equipped with reset spring, the front side fixedly connected with closing plate (15) of concave plate (4) bottom inner wall, the front side of loading board (12) and the rear side sliding connection of closing plate (15).

2. A random limiting device for a heading machine as defined in claim 1, wherein: the rear side fixedly connected with guard plate (10) of recess board (4), the rear side of loading board (12) all is connected with the front side slip of guard plate (10), and the rear side fixedly connected with sliding plate (17) of loading board (12), and the front side of guard plate (10) has seted up and has supplied gliding spout of sliding plate (17).

3. A random limiting device for a heading machine as defined in claim 1, wherein: the height of one side of the side baffle plate (3) far away from the concave plate (4) is smaller than the height of one side of the side baffle plate (3) close to the concave plate (4).

4. A random limiting device for a heading machine as defined in claim 1, wherein: two groups of limiting blocks (8) are fixedly connected to the left side and the right side of the guide plate (7), and two groups of limiting grooves for limiting the limiting blocks (8) to slide along the vertical direction are formed in the left side and the right side of the guide frame (6).

5. A random limiting device for a heading machine as defined in claim 1, wherein: opposite sides of the two groups of side baffles (3) are respectively connected with back sides of the two groups of lifting plates (11) in a sliding manner, and the distance between the back sides of the two groups of lifting plates (11) is equal to the width of the main baffle (2).

6. The random limiting device of the heading machine as recited in claim 5, wherein: the height of the lifting plates (11) is larger than the distance from the bottom of the main baffle plate (2) to the top of the concave plate (4), and gaps are reserved between the opposite sides of the two groups of lifting plates (11) and the outer surface of the concave plate (4).