CN218912884U

CN218912884U - All-round tunnel profile correction device

Info

Publication number: CN218912884U
Application number: CN202223052195.3U
Authority: CN
Inventors: 兰冰; 邱章令; 朱孝荣
Original assignee: Sichuan Lanhai Intelligent Equipment Manufacturing Co Ltd
Current assignee: Sichuan Lanhai Intelligent Equipment Manufacturing Co Ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-04-25
Anticipated expiration: 2032-11-16

Abstract

The utility model relates to the technical field of tunnel construction, in particular to an omnibearing tunnel profile correction device which comprises a breaking hammer assembly, a rotation driving mechanism, a vibration driving mechanism, a sliding seat, a propelling beam, a propelling mechanism, a rotation driving mechanism and a base; the breaking hammer assembly is connected with the vibration driving mechanism through the rotation driving mechanism; the vibration driving mechanism is arranged on the sliding seat; the sliding seat is connected to the pushing beam in a sliding manner and can slide freely along the length direction of the pushing beam; the pushing mechanism is arranged on the pushing beam and used for pushing the sliding seat to freely slide along the length direction of the pushing beam; the base is connected with the propelling beam through a rotary driving mechanism. According to the utility model, the position of the breaking hammer assembly on the tunnel face is changed through the rotation driving mechanism and the rotation driving mechanism, the breaking hammer assembly passes over the steps to reach the edges of the two sides of the steps for operation, and the breaking hammer assembly can reach any position of the tunnel face, so that the omnibearing correction of the tunnel profile is realized.

Description

All-round tunnel profile correction device

Technical Field

The utility model relates to the technical field of tunnel construction, in particular to an omnibearing tunnel contour correction device.

Background

In the construction operation of the tunnel drilling and blasting method, the tunnel needs to be subjected to initial concrete and secondary concrete support in time after drilling, blasting and excavation so as to accelerate the tunnel excavation efficiency, control surrounding rock deformation and prevent collapse. However, the tunnel profile after drilling and blasting excavation often has the conditions of underexcavation and overexcavation, and the underexcavation and overexcavation are unfavorable for the subsequent vertical frame and guniting construction, so that the construction efficiency is affected.

Application number 202211025651.7 describes a device for correcting the profile of a tunnel, which can be used for handling the undermining of the tunnel after blasting and for correcting the profile of the tunnel. But in use it has been found that in making tunnel profile corrections, frequent rotational adjustments of the entire device are required as the position of the correction changes, and rotational adjustments of the device typically rely on the pitch and yaw rams provided thereon. When the tunnel face has steps, the actions of the device are easy to interfere by the steps, and the areas near the steps, particularly the edges at the two sides of the steps, interfere the movement of the device, so that dead angles which cannot be corrected are left.

Disclosure of Invention

In view of the above, the present utility model provides an omnidirectional tunnel profile correction device for correcting any position of the tunnel profile in an omnidirectional manner.

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

an omnibearing tunnel contour correction device comprises a breaking hammer assembly, a rotation driving mechanism, a vibration driving mechanism, a sliding seat, a propelling beam, a propelling mechanism, a rotation driving mechanism and a base; the breaking hammer assembly is connected with the vibration driving mechanism through the rotation driving mechanism; the vibration driving mechanism is arranged on the sliding seat; the sliding seat is connected to the pushing beam in a sliding manner and can slide freely along the length direction of the pushing beam; the pushing mechanism is arranged on the pushing beam and used for pushing the sliding seat to freely slide along the length direction of the pushing beam; the base is connected with the propelling beam through the rotary driving mechanism.

In some embodiments, the breaking hammer assembly includes a breaking hammer body and a tooth; the breaking hammer main body is arranged on the rotation driving mechanism; the bucket teeth are arranged on the breaking hammer main body; the bucket teeth are provided with a plurality of bucket teeth and are arranged in rows on the breaking hammer main body; at least one row of bucket teeth is arranged on the breaking hammer main body; in each row of bucket teeth, the length of the bucket teeth positioned at the middle position is longer than that of the bucket teeth positioned at two sides.

In some embodiments, the overall length of one of the teeth of two adjacent rows is greater than or less than the overall length of the other row.

In some embodiments, the apparatus further comprises a showerhead; the spray header is arranged at a position on the breaking hammer main body, which is close to the bucket teeth.

In some embodiments, the rotary drive mechanism includes a motor and a gearbox; the gear box is fixedly arranged on the vibration driving mechanism; the gear box is internally provided with a transmission gear, the motor is in transmission connection with the transmission gear, and meanwhile, the breaking hammer component is also in transmission connection with the transmission gear.

In some embodiments, at least two of the swing drive mechanisms are disposed side-by-side between the feed beam and the base.

In some embodiments, the swing drive mechanism includes a swing reducer and a connection plate; the rotary speed reducer is fixedly arranged on the base; one end of the connecting plate is connected with the propelling beam, and the other end of the connecting plate is connected with the rotating part of the rotary speed reducer.

In some embodiments, the device further comprises a pitch drive mechanism and a mount; one end of the support is hinged with one end of the base, and the other end of the support is hinged with the other end of the base through the pitching driving mechanism.

In some embodiments, the device further comprises a swing drive mechanism and a mount; one end of the mounting seat is hinged with one side, far away from the pitching driving mechanism, of the support; one end of the swing driving mechanism is hinged with the mounting seat, and the other end of the swing driving mechanism is hinged with the support seat.

In some embodiments, the apparatus further comprises an image acquisition unit; the image acquisition unit is arranged at one end, far away from the breaking hammer assembly, of the propelling beam and is used for shooting the working condition of the breaking hammer assembly.

In summary, compared with the prior art, the utility model has the following advantages and beneficial effects: according to the utility model, the position of the breaking hammer assembly on the tunnel face is changed through the rotation driving mechanism and the rotation driving mechanism, the breaking hammer assembly passes over the steps to reach the edges of the two sides of the steps for operation, and the breaking hammer assembly can reach any position of the tunnel face, so that the omnibearing correction of the tunnel profile is realized.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic structural view of the present utility model when working in a tunnel.

Fig. 3 is an enlarged schematic view of the area a in fig. 2.

The definitions of the various numbers in the figures are: the breaking hammer assembly 1, the breaking hammer main body 101, the bucket teeth 102, the spray header 2, the rotation driving mechanism 3, the motor 301, the gear box 302, the vibration driving mechanism 4, the sliding seat 5, the push beam 6, the push mechanism 7, the image acquisition unit 8, the rotation driving mechanism 9, the rotation speed reducer 901, the connecting plate 902, the base 10, the pitching driving mechanism 11, the support 12, the swinging driving mechanism 13, the mounting seat 14 and the step 15.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the following specific embodiments.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of first, second, etc. terms, if any, are used solely for the purpose of distinguishing between technical features and should not be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

As shown in fig. 1, an omnibearing tunnel contour correction apparatus according to an embodiment of the present application includes a breaking hammer assembly 1, a rotation driving mechanism 3, a vibration driving mechanism 4, a sliding seat 5, a push beam 6, a push mechanism 7, a swing driving mechanism 9, and a base 10.

The pushing beam 6 is a long beam, a sliding rail is arranged on one side surface of the pushing beam 6, and the sliding seat 5 is slidably connected to the sliding rail and can freely slide along the length direction of the sliding rail.

The pushing mechanism 7 is mounted on the pushing beam 6 and is used for pushing the sliding seat 5 to freely slide along the length direction of the sliding rail. The pushing mechanism 7 may be any one of a hydraulic telescopic cylinder, an electric telescopic cylinder and a pneumatic telescopic cylinder, one end of which is connected with one side end of the pushing beam 6, and the other end of which is connected with the sliding seat 5.

The vibration driving mechanism 4 is arranged on the sliding seat 5 and freely slides on the pushing beam 6 along with the sliding seat 5. The breaking hammer assembly 1 is connected with the vibration driving mechanism 4 through a rotation driving mechanism 3.

The vibration driving mechanism 4 may be a vibration motor or other driving mechanism capable of realizing high-frequency reciprocating motion, and is used for driving the breaking hammer assembly 1 to vibrate in a reciprocating manner along the length direction of the propelling beam 6, so as to realize high-frequency rock breaking.

The rotation driving mechanism 3 may include a motor 301 and a gear box 302. The gear box 302 is fixedly mounted on the vibration drive mechanism 4. The gear box 302 is internally provided with a transmission gear, the motor 301 is in transmission connection with the transmission gear, and meanwhile, the breaking hammer assembly 1 is also in transmission connection with the transmission gear. As shown in fig. 2 and 3, the rotation driving mechanism 3 can drive the breaking hammer assembly 1 to rotate along the length direction of the vertical pushing beam 6, so as to adjust the construction angle of the breaking hammer assembly 1, and make it fit with the arc profile of the tunnel.

The breaking hammer assembly 1 can adopt a hydraulic breaking hammer in the prior art, uses hydrostatic pressure as power to drive a piston to reciprocate, and impacts a drill rod at a high speed during the stroke of the piston, so that the drill rod breaks solids such as ore, concrete and the like. According to the embodiment of the application, the profile surface of the tunnel can be corrected through the breaking hammer assembly 1, so that the underexcavation condition of the tunnel is solved.

In some embodiments, the breaking hammer assembly 1 can also take other specifically designed structural forms. For example, the breaking hammer assembly 1 may comprise a breaking hammer body 101 and a tooth 102. Wherein, the breaking hammer main body 101 is mounted on the rotation driving mechanism 3, and can be driven to rotate by the rotation driving mechanism 3. The teeth 102 are attached to the main body 101, and the teeth 102 are preferably attached to the main body 101 on the side away from the propulsion mechanism 7 in view of crushing effect and easy operability.

The bucket teeth 102 may be further disposed in a plurality of rows on the breaking hammer main body 101, so that the breaking hammer main body 101 can have a larger breaking contact area with the inner wall of the tunnel during the action, and thus a better trimming effect is achieved. At least one row of bucket teeth 102 is arranged on the breaking hammer main body 101, in each row of bucket teeth 102, the length of the bucket teeth 102 positioned at the middle position is longer than that of the bucket teeth 102 positioned at the two sides, so that each row of bucket teeth 102 can form an overall arc-shaped profile, thereby being more beneficial to removing rocks and enabling the profile of the tunnel after trimming to keep an arc-shaped section.

Moreover, embodiments of the present application may also design the overall length of one tooth 102 of two adjacent rows of teeth 102 to be greater than or less than the overall length of the other row of teeth 102. For example, when only two rows of teeth 102 are provided, the overall length of the teeth 102 located in the upper row in the working state is smaller than that of the teeth 102 located in the lower row, because during the tunnel trimming process, the inner wall of the tunnel is usually trimmed in a top-down manner, so that the teeth 102 located in the lower row are firstly contacted with the inner wall of the tunnel, and after the teeth 102 located in the lower row remove the corresponding earth rock of the inner wall of the tunnel, the teeth 102 located in the upper row can be contacted with the inner wall of the tunnel, so that the trimmed inner wall of the tunnel has a better arc profile. In some cases, the inner wall of the tunnel may be trimmed from bottom to top, where the overall length of the teeth 102 located in the upper row in the working state needs to be set to be greater than the overall length of the teeth 102 located in the lower row, so as to trim the tunnel into a better arc profile. Meanwhile, as the inner wall of the tunnel is arc-shaped, the whole length of two adjacent rows of bucket teeth 102 is set to be in a step shape, which is beneficial to keeping the profile shape of the inner wall of the tunnel after finishing more in line with the requirements. And, setting the entire length of the adjacent two rows of bucket teeth 102 to be stepped, the technical effect that: the longer row of teeth 102 is contacted with the rock mass and thinned, and then the shorter row of teeth 102 is contacted with the rock mass and thinned further, so that the teeth 102 can be prevented from bearing larger impact force at one time, the rock cutting efficiency can be improved, and the trimming effect is better especially when the teeth face the large rock mass.

A group of spray heads 2 can be additionally arranged on the breaking hammer main body 101 at a position close to the bucket teeth 102 so as to reduce the dust concentration generated when the bucket teeth 102 break rocks.

In order to understand the rock breaking situation of the bucket tooth 102 at any time, the embodiment of the present application may further install an image acquisition unit 8, such as a camera, on the propelling beam 6. The image acquisition unit 8 may be mounted on the feed beam 6 at an end remote from the breaking hammer assembly 1 to avoid earth and stone splatter damaging the image acquisition unit 8.

The base 10 is used for connecting with tunnel construction equipment (such as a trolley), and the slewing drive mechanism 9 is connected between the base 10 and the push beam 6, so that the push beam 6 and the breaking hammer assembly 1 and other mechanisms mounted on the push beam 6 can rotate relative to the base 10 in the length direction of the vertical push beam 6. As shown in fig. 3, the rotation driving mechanism 9 can drive the breaking hammer assembly 1 to cross the interference of the step 15, and after being matched with the rotation driving mechanism 3, the breaking hammer assembly 1 can reach any position of the tunnel face, so that the omnibearing correction of the tunnel profile is realized.

The swing drive mechanism 9 may include a swing reducer 901 and a connection plate 902. The swing reducer 901 is fixedly mounted on the base 10. One end of the connecting plate 902 is connected to the feed beam 6, and the other end is connected to the rotating portion of the swing reducer 901. In some cases, at least two slewing drive mechanisms 9 may be arranged side by side between the feed beam 6 and the base 10 for improved structural strength and/or driving force.

To further facilitate connection of embodiments of the present application to a trolley or the like, and to adjust the position and angle of the connection, embodiments of the present application may also include a pitch drive mechanism 11 and a mount 12. At this time, the base 10 is not used for connection with a trolley or the like, but can be connected with a boom of the trolley through the support 12, and at the same time, one end of the support 12 is hinged with one end of the base 10, and the other end of the support 12 is hinged with the other end of the base 10 through the pitch driving mechanism 11. The pitch drive mechanism 11 may be any of a hydraulic telescopic cylinder, an electric telescopic cylinder, and a pneumatic telescopic cylinder. In this way, the pitch angle of the feed beam 6 with respect to the mount 12, i.e., the pitch angle of the breaking hammer assembly 1, can be adjusted by the extension and shortening of the pitch drive mechanism 11.

Meanwhile, the embodiment of the present application may further include a swing driving mechanism 13 and a mount 14. In this case, the mount 12 is not used for connection to a device such as a truck, but can be connected to a device such as a truck through the mount 14. One end of the mounting base 14 is hinged to a side of the support 12 remote from the pitch drive mechanism 11. The swing driving mechanism 13 may be any one of a hydraulic telescopic cylinder, an electric telescopic cylinder and a pneumatic telescopic cylinder, one end of the swing driving mechanism 13 is hinged with the mounting seat 14, and the other end is hinged with the support 12. For example, when the pitch drive mechanism 11 is used to adjust the pitch angle of the feed beam 6 up and down, the embodiments of the present application can adjust the yaw angle of the feed beam 6 by the yaw drive mechanism 13, i.e., the adjustment of the feed beam 6 in two degrees of freedom can be achieved by the pitch drive mechanism 11 and the yaw drive mechanism 13.

The embodiment of the application can not only realize the undermining treatment of the tunnel after blasting, but also change the tunnel construction blasting construction method, reserve partial profile rock stratum when blasting, and ensure that the blasting cannot appear over-digging. The reserved profile rock stratum adopts the device to carry out the omnidirectional correction of the profile, and after the tunnel is trimmed, the arc flatness of the tunnel profile can be well maintained, and the device is very favorable for the stand, the welding connecting ribs and the net sheet. According to the embodiment of the application, the construction efficiency can be greatly improved, meanwhile, the backfilling of concrete is reduced, and the construction cost is reduced.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above-described preferred embodiments should not be construed as limiting the utility model, which is defined in the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.

Claims

1. An all-round tunnel profile correction device which is characterized in that: the device comprises a breaking hammer assembly (1), a rotation driving mechanism (3), a vibration driving mechanism (4), a sliding seat (5), a propelling beam (6), a propelling mechanism (7), a rotation driving mechanism (9) and a base (10); the breaking hammer assembly (1) is connected with the vibration driving mechanism (4) through the rotation driving mechanism (3); the vibration driving mechanism (4) is arranged on the sliding seat (5); the sliding seat (5) is connected to the pushing beam (6) in a sliding manner and can freely slide along the length direction of the pushing beam (6); the pushing mechanism (7) is arranged on the pushing beam (6) and is used for pushing the sliding seat (5) to freely slide along the length direction of the pushing beam (6); the base (10) is connected with the propelling beam (6) through the rotary driving mechanism (9).

2. An all-round tunnel contour correction apparatus as defined in claim 1, wherein: the breaking hammer assembly (1) comprises a breaking hammer main body (101) and bucket teeth (102); the breaking hammer main body (101) is arranged on the rotation driving mechanism (3); the bucket teeth (102) are arranged on the breaking hammer main body (101); the bucket teeth (102) are provided with a plurality of bucket teeth and are arranged in rows on the breaking hammer main body (101); at least one row of bucket teeth (102) are arranged on the breaking hammer main body (101); in each row of bucket teeth (102), the length of the bucket teeth (102) positioned at the middle position is longer than the length of the bucket teeth (102) positioned at two sides.

3. An all-round tunnel contour correction apparatus as defined in claim 2, wherein: the overall length of one row of teeth (102) in two adjacent rows of teeth (102) is greater than or less than the overall length of the other row of teeth (102).

4. An all-round tunnel contour correction apparatus as defined in claim 2, wherein: the device also comprises a spray header (2); the spray header (2) is arranged on the breaking hammer main body (101) at a position close to the bucket tooth (102).

5. An all-round tunnel contour correction apparatus as defined in claim 1, wherein: the rotation driving mechanism (3) comprises a motor (301) and a gear box (302); the gear box (302) is fixedly arranged on the vibration driving mechanism (4); the breaking hammer is characterized in that a transmission gear is arranged in the gear box (302), the motor (301) is in transmission connection with the transmission gear, and meanwhile, the breaking hammer assembly (1) is also in transmission connection with the transmission gear.

6. An all-round tunnel contour correction apparatus as defined in claim 1, wherein: at least two slewing drive mechanisms (9) are arranged between the propelling beam (6) and the base (10) in parallel.

7. An all-round tunnel contour correction apparatus as defined in claim 1 or 6, wherein: the rotary driving mechanism (9) comprises a rotary speed reducer (901) and a connecting plate (902); the rotary speed reducer (901) is fixedly arranged on the base (10); one end of the connecting plate (902) is connected with the propelling beam (6), and the other end is connected with the rotating part of the rotary speed reducer (901).

8. An all-round tunnel contour correction apparatus as defined in claim 1, wherein: the device further comprises a pitch drive mechanism (11) and a support (12); one end of the support (12) is hinged with one end of the base (10), and the other end of the support (12) is hinged with the other end of the base (10) through the pitching driving mechanism (11).

9. An all-round tunnel contour correction apparatus as defined in claim 8, wherein: the device also comprises a swing driving mechanism (13) and a mounting seat (14); one end of the mounting seat (14) is hinged with one side of the support (12) away from the pitching driving mechanism (11); one end of the swing driving mechanism (13) is hinged with the mounting seat (14), and the other end of the swing driving mechanism is hinged with the support (12).

10. An all-round tunnel contour correction apparatus as defined in claim 1, wherein: the device further comprises an image acquisition unit (8); the image acquisition unit (8) is arranged at one end, far away from the breaking hammer assembly (1), of the propelling beam (6) and is used for shooting the working condition of the breaking hammer assembly (1).