CN113427440B - Automatic drilling machine and method for shield tunnel steel ring installation - Google Patents
Automatic drilling machine and method for shield tunnel steel ring installation Download PDFInfo
- Publication number
- CN113427440B CN113427440B CN202110620653.XA CN202110620653A CN113427440B CN 113427440 B CN113427440 B CN 113427440B CN 202110620653 A CN202110620653 A CN 202110620653A CN 113427440 B CN113427440 B CN 113427440B
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- Prior art keywords
- automatic drilling
- drilling machine
- electric hammer
- shield tunnel
- support
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/28—Supports; Devices for holding power-driven percussive tools in working position
- B25D17/30—Pillars and struts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
- B28D1/146—Tools therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to an automatic drilling machine and a method for mounting a steel ring of a shield tunnel, wherein the automatic drilling machine comprises an electromagnetic base, a fixed support and an electric hammer, the fixed support is fixedly connected to the upper surface of the electromagnetic base through a steel cylinder, a linear motor is arranged in the fixed support, the steel cylinder is slidably connected with a movable support positioned below the fixed support, the movable support can slide up and down along the steel cylinder, a push rod of the linear motor is connected with the movable support, and the electric hammer is mounted on one side surface of the movable support. The invention is suitable for drilling the bar planting holes on the curved steel lining ring, can greatly reduce the labor intensity, and is also suitable for the hole drilling construction under other similar working conditions.
Description
Technical Field
The invention relates to a device for automatically drilling a curved steel lining ring of a tunnel, which is particularly suitable for the situation that a steel pipe piece is fixed and holes need to be formed on a concrete pipe piece in the construction of a steel ring of an operation shield tunnel.
Background
Along with the extension of the subway operation time, the deformation degree of the subway tunnel tends to be serious, and the requirement of the shield tunnel steel ring renovation construction is gradually increased.
According to statistics, the daily average passenger capacity of the Shanghai subway in 2020 reaches 774.51 ten thousands of times, and the total passenger capacity reaches 28.34 hundred million times. The demand of city population to underground rail transit is constantly increasing nowadays, for better service trip personnel, subway operation time is constantly prolonged. And the corresponding maintenance construction time of the operation subway is continuously compressed. In order to better adapt to the operation of subways, all the working procedures in construction need to be optimized so as to finish all the working procedures within limited construction time.
When fixing bolt was planted in maintenance subway shield tunnel steel ring renovation construction at present, ordinary electric hammer manpower trompil was adopted in the trompil, and the trompil is efficient, and it is relatively poor to last working capacity, often leads to fixing bolt to plant the progress and can't reach established requirement. Along with the continuous extension of subway line operating time, the engineering time constantly reduces, needs a more stable, efficient concrete trompil device.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an automatic drilling machine and method for mounting a steel ring of a shield tunnel.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a shield tunnel steel ring installation automatic drilling machine, includes electromagnetism base, fixing support, electric hammer, pass through steel cylinder fixed connection fixing support above the electromagnetism base, linear electric motor is equipped with in the fixing support, sliding connection is located the removal support of fixing support below on the steel cylinder, it can follow the steel cylinder and slide from top to bottom to remove the support, linear electric motor's push rod is connected and is removed the support, remove and install the electric hammer on the support side.
Furthermore, a damping spring is connected between the fixed support and the movable support.
Further, the movable support is connected with an electric hammer through a fixed hoop.
Further, the maximum propelling force of the linear motor is 3000N, the propelling speed is 10mm/s, and the stroke is 250mm.
Furthermore, the electromagnetic base adopts an arc-shaped bottom surface which can be completely attached to the duct piece; a hole with the diameter of 30mm is reserved in the electromagnetic base, and cross-shaped centering is arranged on the electromagnetic base, so that the base can be conveniently positioned and a drill bit can conveniently pass through the electromagnetic base.
Furthermore, the electromagnetic base has an adsorption force of 5000N after being electrified.
Furthermore, the steel cylinder is provided with an up-and-down movable limit, the stroke of the sliding support is limited to 0-250mm, and the punching depth can be effectively controlled.
A construction method for installing an automatic drilling machine by adopting a shield tunnel steel ring comprises the following steps:
(1) After the steel plate is in place, aligning the cross centering standard of the hole site of the electromagnetic base with a reserved hole of the steel plate, and electrifying and fixing;
(2) Fixing the electric hammer on a fixed hoop of the sliding support, and checking the working condition of the movable support;
(3) Firstly, starting an electric hammer switch, starting a linear motor after the electric hammer works stably, and completing automatic drilling operation by utilizing the thrust of the linear motor and the impact of the electric hammer;
(4) After the electric hammer drills to a preset depth, the linear motor retraction switch is started, the electric hammer switch is closed after the drill bit is completely pulled out, and finally the electromagnetic base switch is closed and the automatic drilling machine is taken down.
The invention has the beneficial effects that:
the tapping device of the present invention: the electromagnetic base is used for positioning and fixing, and the automatic drilling is completed by utilizing the propelling force of the electric hammer and the linear motor.
The invention adopts a split structure, controls the weight of a single body to be about 10Kg, firstly positions and then fixes the electric hammer to punch, and realizes the automatic punching of the 360-degree intrados.
The invention is characterized in that the positioning is completed by mechanical equipment, and compared with manual construction, the stability is better, and the construction progress and quality are greatly improved.
Drawings
Fig. 1 is a sectional view showing the construction of a shield tunnel steel ring installation automatic drilling machine according to the present invention.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
a. As shown in figure 1, the automatic drilling device for the curved steel lining ring of the tunnel is an assembly system, and all parts are effectively connected and work together to complete automatic drilling operation.
b. The electromagnetic base 1 of the device has the adsorption force of 5000N after being electrified.
c. Fixing support 2 fixes on steel cylinder 8, and both ends are fixed, and linear electric motor base and linear electric motor 4 install on fixing support 2.
d. Remove support 3 and install on steel cylinder 8, remove support 3 and can follow steel cylinder 8 from top to bottom from the top down and have the slip to fixed bearing 2 is connected by 4 head ends of linear electric motor and damping spring 6.
e. The maximum propelling force of the linear motor 4 is 3000N, the propelling speed is 10mm/s, and the stroke is 250mm.
f. The electric hammer 5 uses a Xilei TE50 type impact drill and is fixed by two cuffs 7 at the side of the movable support 3.
g. The electromagnetic base 1 adopts an arc bottom surface (the diameter =5.5 m), and can be completely attached to a pipe piece; a hole with the diameter of 30mm is reserved in the electromagnetic base 1, cross-shaped centering is arranged, and the electromagnetic base 1 is convenient to position and a drill bit can pass through.
h. Recoil that punches is greater than 5000N, is provided by the electro-magnet, and propulsive force 3000N is provided by linear electric motor 4, ensures the impact force demand in the 20 joule scopes.
i. The steel cylinder 8 is provided with a movable limit to limit the stroke (0-250 mm) of the sliding support 3, and the punching depth can be effectively controlled.
The application method of the embodiment of the invention comprises the following steps:
a. and (4) repairing the steel ring of the shield tunnel, aligning the cross centering standard of the hole site of the electromagnetic base of the device with the preformed hole of the steel plate after the steel plate is in place, and electrifying and fixing.
b. And fixing the electric hammer on the sliding support hoop, and checking the working condition of the movable support.
c. The electric hammer switch is started firstly, after the electric hammer works stably, the linear motor is started, and automatic drilling operation is completed by utilizing the thrust of the linear motor and the impact of the electric hammer.
d. After the drill bit is completely pulled out, the electric hammer switch is turned off, and finally the electromagnetic base switch is turned off and the automatic drilling machine is taken down.
Claims (8)
1. The utility model provides a shield tunnel steel ring installation automatic drilling machine, includes electromagnetic base, fixing support, electric hammer, its characterized in that: the electromagnetic base is fixedly connected with a fixed support through a steel cylinder, a linear motor is arranged in the fixed support, the steel cylinder is connected with a movable support below the fixed support in a sliding manner, the movable support can slide along the steel cylinder, the linear motor is connected with a push rod, and an electric hammer is arranged on one side of the movable support.
2. The automatic drilling machine for shield tunnel steel ring installation according to claim 1, wherein: and a damping spring is connected between the fixed support and the movable support.
3. The automatic drilling machine for shield tunnel steel ring installation according to claim 1, characterized in that: the movable support is connected with an electric hammer through a fixed hoop.
4. The automatic drilling machine for shield tunnel steel ring installation according to claim 1, characterized in that: the maximum propelling force of the linear motor is 3000N, the propelling speed is 10mm/s, and the stroke is 250mm.
5. The automatic drilling machine for shield tunnel steel ring installation according to claim 1, wherein: the electromagnetic base adopts an arc-shaped bottom surface which can be completely attached to the duct piece; a hole with the diameter of 30mm is reserved in the electromagnetic base, and cross-shaped centering is arranged on the electromagnetic base, so that the base can be conveniently positioned and a drill bit can conveniently pass through the electromagnetic base.
6. The automatic drilling machine for shield tunnel steel ring installation according to claim 1, characterized in that: and after the electromagnetic base is electrified, the adsorption force is 5000N.
7. The automatic drilling machine for shield tunnel steel ring installation according to claim 1, wherein: the steel cylinder is provided with an up-down movable limit, the stroke of the sliding support is limited to 0-250mm, and the punching depth can be effectively controlled.
8. A construction method for installing an automatic drilling machine by adopting a shield tunnel steel ring is characterized by comprising the following steps:
(1) After the steel plate is in place, aligning the cross centering standard of the hole site of the electromagnetic base with a reserved hole of the steel plate, and electrifying and fixing;
(2) Fixing the electric hammer on a fixed hoop of the sliding support, and checking the working condition of the movable support;
(3) Starting an electric hammer switch, starting a linear motor after the electric hammer works stably, and completing automatic drilling operation by utilizing the thrust of the linear motor and the impact of the electric hammer;
(4) After the electric hammer drills to a preset depth, the linear motor retraction switch is started, the electric hammer switch is closed after the drill bit is completely pulled out, and finally the electromagnetic base switch is closed and the automatic drilling machine is taken down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110620653.XA CN113427440B (en) | 2021-06-03 | 2021-06-03 | Automatic drilling machine and method for shield tunnel steel ring installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110620653.XA CN113427440B (en) | 2021-06-03 | 2021-06-03 | Automatic drilling machine and method for shield tunnel steel ring installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113427440A CN113427440A (en) | 2021-09-24 |
| CN113427440B true CN113427440B (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110620653.XA Active CN113427440B (en) | 2021-06-03 | 2021-06-03 | Automatic drilling machine and method for shield tunnel steel ring installation |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102165286B1 (en) * | 2020-03-25 | 2020-10-13 | 탄탄안전 주식회사 | Attachable Chloride sampling device |
| CN211777177U (en) * | 2019-12-26 | 2020-10-27 | 中铁四局集团电气化工程有限公司 | Novel multipurpose tunnel puncher |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05138415A (en) * | 1991-11-25 | 1993-06-01 | Hitachi Koki Co Ltd | Steel pipe drilling magnet for magnetic drilling machine |
| CN202479537U (en) * | 2012-01-28 | 2012-10-10 | 王志生 | Moveable low-speed bench drill |
| CN202411462U (en) * | 2012-01-28 | 2012-09-05 | 王志生 | Movable low-speed drilling machine |
| CN105583785B (en) * | 2015-02-13 | 2017-07-11 | 余姚市陆埠镇鸿杰纸箱厂 | One kind exempts from hand held electric hammer |
| CN207669241U (en) * | 2017-12-20 | 2018-07-31 | 深圳市宇洋建筑发展股份有限公司 | A kind of impact electric hammer with dust reduction capability |
| CN208866455U (en) * | 2018-08-13 | 2019-05-17 | 硅湖职业技术学院 | The fixed bracket of automatic drilling machine |
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2021
- 2021-06-03 CN CN202110620653.XA patent/CN113427440B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211777177U (en) * | 2019-12-26 | 2020-10-27 | 中铁四局集团电气化工程有限公司 | Novel multipurpose tunnel puncher |
| KR102165286B1 (en) * | 2020-03-25 | 2020-10-13 | 탄탄안전 주식회사 | Attachable Chloride sampling device |
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| CN113427440A (en) | 2021-09-24 |
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