CN-122014288-A - Tunnel supporting template device for civil engineering

CN122014288ACN 122014288 ACN122014288 ACN 122014288ACN-122014288-A

Abstract

The application relates to a tunnel supporting template device for civil engineering. The tunnel supporting template device for civil engineering comprises a base, a supporting arm, a supporting template, an angle adjusting assembly, a clutch structure and a locking mechanism, wherein the supporting arm is arranged on the base and is adjustable in length, the supporting arm comprises a driving assembly and a telescopic mechanism in transmission connection with the driving assembly, the supporting template is arranged at the far end of the supporting arm and is used for being attached to the inner wall of a tunnel, the angle adjusting assembly is connected with the supporting template and the supporting arm and is used for adjusting the angle of the supporting template relative to the supporting arm, the clutch mechanism is arranged between the driving assembly and the telescopic mechanism and is used for enabling the telescopic mechanism to be separated from the driving assembly in transmission connection after the supporting template contacts the inner wall of the tunnel and receives preset reaction force, and the locking mechanism is linked with the clutch mechanism and locks the angle of the angle adjusting assembly. The problem that the traditional tunnel support template cannot be flexibly adapted to different tunnels and is poor in laminating effect with the inner wall of the tunnel is solved.

Inventors

ZHAO HAIJUN
GUO JING
CHEN TIELIN
WANG LIJUN
XIAO ZHIMING
LIU PING
HE YUQIANG
Wang Gujian
ZHANG YAN
LI YUEPENG

Assignees

国能朔黄铁路发展有限责任公司
北京交通大学

Dates

Publication Date: 20260512
Application Date: 20260317

Claims (10)

1. A tunnel supporting formwork device for civil engineering, characterized in that the tunnel supporting formwork device for civil engineering comprises: A base (1); the support arm (2) is arranged on the base (1), and the length of the support arm (2) can be adjusted, wherein the support arm (2) comprises a driving component and a telescopic mechanism in transmission connection with the driving component; the support template (27) is arranged at the far end of the support arm (2) and is used for being attached to the inner wall of the tunnel; An angle adjusting assembly (28) connecting the support template (27) and the support arm (2) for adjusting the angle of the support template (27) relative to the support arm (2); The clutch mechanism is arranged between the driving assembly and the telescopic mechanism and is used for separating the telescopic mechanism from the driving assembly after the supporting template (27) contacts the inner wall of the tunnel and receives a preset reaction force; and the locking mechanism is linked with the clutch mechanism and is used for locking the angle of the angle adjusting assembly (28) when the clutch mechanism is in separation transmission connection.
2. Tunnel supporting formwork device for civil engineering according to claim 1, characterized in that the drive assembly comprises a drive motor (24) and a transmission shaft (22) in driving connection with the drive motor (24); the telescopic mechanism comprises a rotating screw rod (210) in transmission connection with the transmission shaft (22) and a lifting rod (29) in threaded fit with the rotating screw rod (210), and the distal end of the lifting rod (29) is connected with the angle adjusting assembly (28).
3. Tunnel supporting formwork device for civil engineering according to claim 2, characterized in that a drive bevel gear (21) is provided on the drive shaft (22), and a driven bevel gear (211) engaged with the drive bevel gear (21) is provided on the rotating screw (210) to transmit the rotation power of the drive shaft (22) to the rotating screw (210).
4. A tunnel supporting formwork apparatus for civil engineering according to claim 3, wherein said clutch mechanism is provided in a rotating block (25) between said driven bevel gear (211) and said rotating screw (210), said rotating block (25) being fitted and fixed on said rotating screw (210) and being located in a mounting seat (4) provided on said base (1); The clutch mechanism includes: A rotating disc (252) movably connected in the rotating block (25); The adjusting piece (251) is arranged between the inner wall of the rotating block (25) and the rotating disc (252), the adjusting piece (251) comprises a ratchet wheel block (2511) fixed on the inner wall of the rotating block (25), ratchet wheel teeth (2512) hinged on the rotating disc (252), a fixed block (2513) fixed on the rotating disc (252), and a first spring (2514) connecting the ratchet wheel teeth (2512) and the fixed block (2513), and the ratchet wheel block (2511) is in one-way meshing fit with the ratchet wheel teeth (2512); the adjusting rod (261) penetrates through the mounting seat (4) and is matched with the rotating disc (252); The servo piece (262) is arranged on the adjusting rod (261), the servo piece (262) comprises an arc servo piece (2621) fixed on the adjusting rod (261), a V-shaped piece (2622) movably connected on the adjusting rod (261) and a second elastic piece (2623) connected with the arc servo piece (2621) and the V-shaped piece (2622), the V-shaped piece (2622) is in clamping fit with a thrust groove on the rotating disc (252), when the supporting template (27) contacts the inner wall of the tunnel and receives a preset reaction force, the V-shaped piece (2622) is pressed and compressed to compress the second elastic piece (2623) and is contracted into the adjusting rod (261), the second elastic piece is separated from the thrust groove, the rotating disc (252) is separated from the clamping fit with the adjusting rod (261), and synchronous transmission is released, so that the telescopic mechanism and the driving component are separated.
5. The tunnel support formwork apparatus for civil engineering according to claim 4, wherein the angle adjusting assembly (28) includes: the connecting seat (284) is fixedly connected with the far end of the lifting rod (29); The connector (285) is fixedly connected with the support template (27); the rotating shaft (282), the connector (285) and the connecting seat (284) are in rotating connection through the rotating shaft (282) so as to adjust the angle of the support template (27).
6. The tunnel supporting template device for civil engineering according to claim 5, wherein a braking groove (2851) is formed in the inner side wall of the connector (285), and a braking ball (292) adapted to the braking groove (2851) is movably arranged in the rod wall of the lifting rod (29); The locking mechanism includes: The rotary cylinder (291) is movably arranged in the lifting rod (29), the rotary cylinder (291) is movably sleeved at the upper end of the adjusting rod (261), the rotary cylinder (291) and the adjusting rod (261) are in circumferential linkage and axially move, the adjusting rod (261) is provided with a pushing block (2911), and the inner wall of the rotary cylinder (291) is provided with a follow-up groove in sliding fit with the pushing block (2911); the adjusting block is arranged on the outer wall of the rotating cylinder (291); When the clutch mechanism realizes transmission separation, the adjusting rod (261) synchronously rotates and drives the rotating cylinder (291) to rotate through the cooperation of the pushing block (2911) and the follow-up groove, the adjusting block rotates along with the rotating cylinder (291) and extrudes the brake ball (292), so that the brake ball (292) is partially embedded into the brake groove (2851), and the relative rotation angle of the connecting seat (284) and the connecting head (285) is locked, so that the angle of the support template (27) is locked.
7. The tunnel supporting die plate device for civil engineering according to claim 6, wherein when the V-shaped block (2622) is extruded and contracted by a reaction force, the arc-shaped follow-up block (2621) is synchronously pushed to drive the adjusting rod (261) to rotate around its own axis, the pushing block (2911) slides along the follow-up groove and applies a rotation driving force to the rotating cylinder (291), so that the rotating cylinder (291) is rotated, and the braking ball (292) is extruded by the adjusting block, so that the clutch mechanism and the locking mechanism are linked.
8. Tunnel support template device for civil engineering according to claim 2, characterized in that the number of support arms (2) is plural and uniformly distributed along the circumference of the foundation (1) to support the tunnel from plural directions; the telescopic mechanisms of the plurality of support arms (2) are driven in a linkage way through the same driving motor (24).
9. The tunnel support template apparatus for civil engineering according to claim 1, further comprising: a stabilizing mechanism (5) arranged on the base (1) and used for contacting with the ground to stabilize the base (1); the moving assembly is arranged at the lower end of the base (1) and is used for driving the base (1) to move.
10. Tunnel support template device for civil engineering according to claim 9, characterized in that the stabilizing means (5) comprise a hydraulic cylinder (51) provided on the foundation (1) and a support plate (54) driven by the hydraulic cylinder (51), the support plate (54) being intended to come into contact with the ground after the foundation (1) has been moved into place, so as to increase the support area; the moving assembly comprises a moving wheel (3) arranged at the lower end of the base (1).

Description

Tunnel supporting template device for civil engineering Technical Field The application relates to the technical field of civil engineering, in particular to a tunnel supporting template device for civil engineering. Background In tunnel engineering construction, a supporting template is a key device for guaranteeing the forming and construction safety of a lining structure. The existing tunnel supporting templates, especially the multi-arm supporting trolley, have some problems in application, firstly, the adaptability is poor, one set of templates can only aim at tunnels with specific sizes and shapes, and when the contours of the tunnels change or irregular rock faces exist, the effective fitting is difficult. Secondly, the adjustment process is complicated, and an operator is usually required to independently or cooperatively control a plurality of supporting arms, so that time and labor are wasted, and even stress of all supporting points is difficult to ensure. Disclosure of Invention Based on this, provide a tunnel support template device for civil engineering to solve unable different tunnels of flexible adaptation, the poor problem of laminating degree. An embodiment of a first aspect of the present application proposes a tunnel supporting formwork device for civil engineering, comprising: A base; The support arm is arranged on the base and has adjustable length, and comprises a driving component and a telescopic mechanism in transmission connection with the driving component; The support template is arranged at the far end of the support arm and is used for being attached to the inner wall of the tunnel; the angle adjusting assembly is connected with the support template and the support arm and is used for adjusting the angle of the support template relative to the support arm; The clutch mechanism is arranged between the driving assembly and the telescopic mechanism and is used for separating the telescopic mechanism from the driving assembly after the supporting template contacts the inner wall of the tunnel and receives a preset reaction force; And the locking mechanism is linked with the clutch mechanism and used for locking the angle of the angle adjusting assembly when the clutch mechanism is in separation transmission connection. In one embodiment, the driving assembly comprises a driving motor and a transmission shaft in transmission connection with the driving motor; the telescopic mechanism comprises a rotating screw rod connected with the transmission shaft in a transmission way and a lifting rod in threaded fit with the rotating screw rod, and the far end of the lifting rod is connected with the angle adjusting assembly. In one embodiment, a drive bevel gear is provided on the drive shaft, and a driven bevel gear engaged with the drive bevel gear is provided on the rotation screw to transmit the rotation power of the drive shaft to the rotation screw. In one embodiment, the clutch mechanism is arranged in a rotating block between the driven bevel gear and the rotating screw, and the rotating block is sleeved and fixed on the rotating screw and is positioned in a mounting seat arranged on the base; The clutch mechanism includes: The rotating disc is movably connected in the rotating block; The adjusting piece comprises a ratchet wheel block fixed on the inner wall of the rotating block, ratchet wheel teeth hinged on the rotating disk, a fixed block fixed on the rotating disk and a first spring 2514 for connecting the ratchet wheel teeth and the fixed block, wherein the ratchet wheel block is in one-way meshing fit with the ratchet wheel teeth; The adjusting rod penetrates through the mounting seat and is matched with the rotating disc; The servo piece comprises an arc-shaped servo block fixed on the adjusting rod, a V-shaped block movably connected on the adjusting rod, and a second elastic piece 2623 connected with the arc-shaped servo block and the V-shaped block, wherein the V-shaped block is in clamping fit with a thrust groove on the rotating disc, when the supporting template contacts the inner wall of the tunnel and receives a preset reaction force, the V-shaped block is extruded to compress the second elastic piece 2623 and contracts into the adjusting rod, and is separated from the thrust groove, so that the rotating disc and the adjusting rod are separated from the clamping fit, synchronous transmission is released, and transmission separation of the telescopic mechanism and the driving assembly is realized. In one embodiment, the angle adjustment assembly includes: The connecting seat is fixedly connected with the far end of the lifting rod; the connector is fixedly connected with the support template; the rotating shaft is used for realizing rotating connection of the connector and the connecting seat through the rotating shaft so as to adjust the angle of the support template. In one embodiment, a braking groove is formed in the inner side wall of the connector, and a braki