CN109057835A - Multiple arch supporting trolley - Google Patents
Multiple arch supporting trolley Download PDFInfo
- Publication number
- CN109057835A CN109057835A CN201811130402.8A CN201811130402A CN109057835A CN 109057835 A CN109057835 A CN 109057835A CN 201811130402 A CN201811130402 A CN 201811130402A CN 109057835 A CN109057835 A CN 109057835A
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- Prior art keywords
- multiple arch
- auxiliary
- support stand
- arm
- arch
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- 238000013519 translation Methods 0.000 claims abstract description 13
- 239000000725 suspension Substances 0.000 claims description 11
- 238000007667 floating Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 16
- 238000010276 construction Methods 0.000 abstract description 14
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Jib Cranes (AREA)
- Tents Or Canopies (AREA)
Abstract
The invention discloses a kind of multiple arch supporting trolleys, including the principal arm, the first auxiliary and the second auxiliary being arranged on chassis, first auxiliary and the second auxiliary are separately positioned on principal arm two sides, multiple arch clamping device is arranged in principal arm end, the first job platform and boom hoisting is arranged in first auxiliary end, and the second job platform is arranged in the second auxiliary end；Multiple arch clamping device includes the first slewing equipment set on bottom, which connects a undersetting, and a upper bracket and undersetting are hinged, and one end of oscillating oil cylinder connects undersetting, and the other end connects upper bracket；One support stand and upper bracket form one group of prismatic pair, and upper bracket side connects support stand through translation oil cylinder；Multiple fixation devices for fixing multiple arch are arranged in above the middle part of support stand.The present invention can be achieved to carry out more Pin arches the quick closure that tunnel support is realized in disposable installation, greatly improve the safety and construction efficiency of construction personnel.
Description
Technical field
The present invention relates to tunnel construction machinery, specifically a kind of multiple arch supporting trolley.
Background technique
In water power tunnel, subway engineering, railway tunnel, vcehicular tunnel, underground power house, military ground engineering construction, such as
Fruit country rock shakiness rule needs to set up arch (grille arch) in advance, performs anchor pole, hangs steel mesh, to prevent Tunnel Landslide.For
Facilitate construction, existing construction technology is a Pin arch to be divided into more piece arch section, then be assembled into tunnel completely by manpower
Supporting arch.By the research and development and accumulation of many years, the mechanized construction of manual imitation has been realized now, though alleviate worker's
Labor intensity, but whole efficiency is not still high.
Summary of the invention
The technical problem to be solved by the present invention is in view of the shortcomings of the prior art, provide a kind of multiple arch supporting trolley, energy
More Pin arches are disposably installed in place, to realize quick supporting operation, the construction time is saved, improves construction personnel's safety
And construction efficiency.
In order to solve the above technical problems, multiple arch supporting trolley provided by the invention includes hingedly being arranged on chassis side by side
Principal arm, the first auxiliary and the second auxiliary, principal arm, which is arranged, is separately positioned on principal arm two in middle position, the first auxiliary and the second auxiliary
Side, principal arm, the first auxiliary, the second auxiliary are all with the cantilever crane folded with Telescopic, in which:
Multiple arch clamping device is arranged in the telescopic arm end of the principal arm, and the first operation is arranged in the telescopic arm end of first auxiliary
The second job platform is arranged in the telescopic arm end of platform and boom hoisting, second auxiliary；
The multiple arch clamping device includes the rotary pair formed by the first slewing equipment, and rotary pair obtains multiple arch in the first revolution
Adjustment freedom degree in device plane of rotation；Undersetting is set above the first slewing equipment, a upper bracket and undersetting are hinged, and
Oscillating oil cylinder is set and forms a swinging pair between upper and lower support, obtains multiple arch perpendicular to the first slewing equipment plane of rotation
Adjustment freedom degree；It is provided with guide rail on one support stand, guide groove, upper bracket guide groove are provided at the top of the upper bracket
Upper bracket and support stand is set to form one group of prismatic pair with the cooperation of the guide rail of support stand, the side of upper bracket and translation oil cylinder
One end connection, the other end of translation oil cylinder connect support stand, by translation oil cylinder it is flexible make support stand along guide groove come
Return is dynamic, and multiple arch is made to obtain horizontal direction adjustment freedom degree；Multiple fixation devices for fixing multiple arch are arranged in support stand
Middle part above.
The fixed device includes the fixing seat being fixedly connected with support stand, and the top of fixing seat is equipped with more for being placed in
The V-type guide groove of arch, the two sides of fixing seat are respectively articulated with the middle part of clamp arm, and the lower end of two clamp arms connects through clamping cylinder
It connects, two clamp arms is acted on by clamping cylinder stretching, two clamp arm tops is shunk and pushes down multiple arch.
Floating support device is arranged in the end of the support stand.
The floating support device includes being set to the drive cylinder below support stand and being set to one above support stand
The swinging frame at end, swinging frame top are provided with support rod, and the middle part of swinging frame and support stand are hinged, and the bottom of swinging frame extends
To support stand in the following, one end of drive cylinder and the bottom of swinging frame are hinged, the other end and support stand of drive cylinder are solid
Fixed connection.The support stand is used as aerial work platform after carrying out multiple arch supporting operation.
The multiple arch is to be arranged side by side by more Pin arches and encircleed with the molding that transverse bar and steel mesh are welded accordingly is connect
Frame.
The boom hoisting is fixed at the telescopic arm end bottom of the first auxiliary, and it includes that upper end is fixed on winch
On lifting rope and be connected to the first suspension hook of lifting rope lower end.
First job platform includes the second slewing equipment connecting with the first auxiliary, setting above the second slewing equipment
There is platform, outside is provided with the first clamping device for clamping multiple arch in front of platform, and the first clamping device is nearby provided with
First elevator hoisting mechanism of the second suspension hook.
Second job platform includes the third slewing equipment connecting with the second auxiliary, setting above third slewing equipment
There is platform, outside is provided with the second clamping device in front of platform, and the second clamping device is nearby provided with the second of third suspension hook
Hoisting mechanism.
Multiple arch supporting trolley of the present invention realizes the disposable transport of more Pin arches by multiple arch clamping device and installation is applied
Work realizes the quick closure of tunnel support, can at least save the construction time of half, greatly improves the safety of construction personnel
Property and construction efficiency.
Detailed description of the invention
Fig. 1 is that the cantilever crane of multiple arch supporting trolley of the present invention recycles state diagram.
Fig. 2 is the axonometric drawing one of multiple arch clamping device of the present invention.
Fig. 3 is the axonometric drawing two of multiple arch clamping device of the present invention.
Fig. 4 is the side view of multiple arch clamping device of the present invention.
Fig. 5 is fixture structure figure of the present invention.
Fig. 6 is floating support device structure chart of the present invention.
Fig. 7 is the usage state diagram of multiple arch clamping device of the present invention.
Fig. 8 is the structure chart of the first auxiliary and boom hoisting of the invention.
Fig. 9 is the usage state diagram of the first job platform of the invention.
Figure 10 is the usage state diagram of the second job platform of the invention.
Figure 11 is the present invention tiltedly side job state figure.
Figure 12 is that the present invention faces job state figure.
Figure 13 is the included multiple arch transport figure of the present invention.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.Specific embodiment party described herein
Formula is merely to illustrate and explain the present invention, the protection scope being not intended to restrict the invention.
It is arranged side by side by more Pin arches it should be noted that multiple arch involved in the present invention refers to and connect transverse bar with corresponding
The molding arch being welded with steel mesh.In this application, in the absence of explanation to the contrary, translation oil cylinder 216 stretches out
Direction be left, retracted orientation is right.With the boundary of support stand 215, side where multiple arch be it is upper, other side is
Under.Above-mentioned term position is only used for the explanation and illustration present invention, should not be interpreted as limitation of the present invention.
As shown in Figure 1, a kind of multiple arch supporting trolley of the present invention includes being disposed in parallel in the One On The Chassis principal arm 2, the first auxiliary
3 and second auxiliary 4, principal arm 2, which is arranged, is separately positioned on 2 two sides of principal arm in middle position, the first auxiliary 3 and the second auxiliary 4.At this
In embodiment, chassis 1 preferably uses wheeled engineering chassis, and however, it is not limited to this.Principal arm 2, the first auxiliary 3 and the second auxiliary
4 be to have mutually isostructural folding and telescopic jib, and structure is known features, is not introduced excessively herein.Fig. 1 and Figure 11-
Figure 13 respectively shows principal arm 2, the first auxiliary 3 and the second auxiliary 4 are withdrawn and the state of expansion, principal arm 2, the first auxiliary 3 and the
Its work cantilever crane is entirely fallen within above chassis after two auxiliarys 4 are withdrawn, compact dimensions, and vehicle has good passability.
As shown in Figure 1, one end of principal arm 2 and chassis 1 are hinged, the other end and the multiple arch clamping device 21 for clamping multiple arch
It is detachably connected.
As shown in Fig. 2-Fig. 7, multiple arch clamping device 21 include the first slewing equipment 211, undersetting 212, upper bracket 213,
Oscillating oil cylinder 214, support stand 215, translation oil cylinder 216, floating support device 217, fixed device 218.
First slewing equipment 211 includes the fixed part and superposed rotating part positioned at lower part, on fixed part
It is provided with the detachable interface connecting with principal arm 2, rotating part is connected and fixed part, rotating part and undersetting through pivoting support
212 are fixedly connected, and obtain multiple arch in 211 plane of rotation of the first slewing equipment by the rotary motion of the first slewing equipment 211
Interior adjustment freedom degree.
Upper bracket 213 and undersetting 212 are hinged, and the right end of undersetting 212 is provided with cylinder installation seat and oscillating oil cylinder 214
One end connection, the right end of upper bracket 213 is provided with cylinder installation seat and connect with the other end of oscillating oil cylinder 214, passes through swing
The effect of oil cylinder 214 is so that upper bracket 213 swings the revolution for obtaining multiple arch perpendicular to slewing equipment 211 with respect to undersetting 212
The adjustment freedom degree of plane.
The top of upper bracket 213 is provided with guide groove 2131, guide rail 2151 is provided on support stand 215, by guiding
The cooperation of slot 2131 and guide rail 2151 makes upper bracket 213 and support stand 215 form one group of prismatic pair.The left end of upper bracket 213
It is provided with cylinder installation seat to connect with one end of translation oil cylinder 216, the left end of support stand 215 is provided with cylinder installation seat and puts down
The other end connection for moving oil cylinder 216, allows support stand 215 along guide groove by the telescopic action of translation oil cylinder 216
2131 move back and forth, so that multiple arch obtains third and adjusts freedom degree: support stand 215 will be opposite when translation oil cylinder 216 stretches out
It is moved downward in upper bracket 213, support stand 215 will be moved right relative to upper bracket 213 when translation oil cylinder 216 retracts.
As shown in figure 5, the middle upper portion of support stand 215 is arranged in fixed device 218.Fixed device 218 includes through spiral shell
The fixing seat 2181 that bolt is connect with support stand 215, the top of fixing seat 2181 are equipped with V-type guide groove, and the two of fixing seat 2181
Side is respectively articulated with clamp arm 2183, and the middle part of two clamp arms 2183 and fixing seat 2181 are hinged, and the lower end of two clamp arms 2183
It is connected through clamping cylinder 2182.When multiple arch falls into fixed device 218, clamping cylinder by the V-type guide groove of fixing seat 2181
2182 stretchings act on two clamp arms 2183, so that two clamp arms, 2183 top, which is shunk, pushes down multiple arch.The quantity of fixed device 218
To cover, configured according to the maximum quantity of arch contained in multiple arch more.Spacing between adjacent fixation devices 218 can be according to arch branch
Nurse's skill has grade or step-less adjustment, for example multiple groups mounting hole can be used and carried out grade adjusting, and stepper motor or servo can also be used
Motor driven screw rod carries out electrodeless adjustment.
Alternatively, as shown in fig. 6, (can be left side, be also possible to right side) on the outside of the upper surface of support stand 215
Floating support device 217 is set.Floating support device 217 includes drive cylinder 2171 and swinging frame 2172.Swinging frame 2172 is set
In one end upper surface of support stand 215, and the middle part of swinging frame 2172 and support stand 215 are hinged, 2172 top of swinging frame
It is provided with support rod 2173, the bottom of swinging frame 2172 extends to below support stand 215.Drive cylinder 2171 is set to supporting table
Below frame 215, and one end of drive cylinder 2171 is fixedly connected with support stand 215, the other end of drive cylinder 2171 with
The bottom of swinging frame 2172 is hingedly fixed.In this way, passing through the telescopic action adjustable floating support device 217 of drive cylinder 2171
2172 upper support bar 2173 of swinging frame height, that is, adjust swinging frame 2172 bearing height, to guarantee different radii arch
Secure support.
Alternatively, support stand 215 can be used as the use of the first platform of high altitude operation after carrying out multiple arch supporting operation.
As shown in Figure 8, Figure 9, one end Yu chassis 1 of the first auxiliary 3 are hinged, and the telescopic arm 31 of the other end is being fixedly installed
On the basis of device for hoisting 33, it is detachably connected with the first job platform 32.Boom hoisting 33 is fixed at the first auxiliary 3
The bottom of telescopic arm end, and it includes the lifting rope 331 and the first suspension hook for being connected to lifting rope lower end that upper end is fixed on winch
332, by the cooperation of the first auxiliary 3 and boom hoisting 33, pass through the multiple arch in boom hoisting 33 in the first auxiliary 3 and principal arm 2
Clamping device 21 cooperates the Self-loading-unloading of achievable multiple arch.
First job platform 32 includes the second slewing equipment 321 of bottom setting, is arranged above the second slewing equipment 321
There is a platform 322,322 front outside of platform is provided with the first clamping device 323, and the first clamping device 323 is nearby provided with the
First elevator hoisting mechanism 325 of two suspension hooks 324.After the first job platform 32 is pushed to designated position by the first auxiliary 3, the
One elevator hoisting mechanism 325 releases the second suspension hook 324, the left section of arch 5 that need to be lifted by crane is hung to extreme higher position, and pass through the first folder
Hold device 323 left section of arch 5 is fixed.Left section of multiple arch is then pushed to by installation site by the first auxiliary 3 again, and through second
The position adjustment of slewing equipment 321 send multiple arch 5 to designated position, and it is fixed to carry out relevant connection.
As shown in Figure 10, one end Yu chassis 1 of the second auxiliary 4 are hinged, and the end of the telescopic arm 41 of the other end is removably
It is connected with the second job platform 42.Second job platform 42 includes the third slewing equipment 421 of bottom setting, third revolution dress
It sets 421 tops and is provided with platform 422,422 front outside of platform is provided with the second clamping device 423, and the second clamping device 423 is attached
Closely it is provided with the second elevator hoisting mechanism 425 of third suspension hook 424.The second job platform 42 is pushed into finger in the second auxiliary
Positioning is set, and the second elevator hoisting mechanism 425 releases third suspension hook 424, and right section of arch 5 is adjusted to highest point, and by adjusting
Second clamping device 423 is fixed by right section of arch 5.Arch is then pushed into installation site by adjusting the second auxiliary 4 again, is passed through
The position adjustment of third slewing equipment 421 send right section of arch 5 to designated position, and it is fixed to carry out relevant connection.
When carrying out arch installation using the present invention, arch is divided into three sections of left, center, right, and wherein middle section is multiple arch, and multiple arch is
Be arranged side by side by more Pin arches and with accordingly connect the molding arch that transverse bar and steel mesh be welded, middle left and right section arch
It is scattered single-unit arch.Again as shown in figures 11-13, pass through the multiple arch in boom hoisting 33 in the first auxiliary 3 and principal arm 2
The multiple arch in middle section is placed on multiple arch clamping device 21 by the mutual cooperation of clamping device 21 is transported to construction site with vehicle, then passes through
The movement of principal arm 1 tentatively pushes to multiple arch near installation site, and makes it by the fine tuning of multiple arch clamping device 21 multiple arch position
It is bonded with installation site, during this, if tunnel cross-section occurs owing to dig part and multiple arch is hindered to be transported to installation site, by the
One, two auxiliarys 3,4 send to corresponding position to handle and owe to dig, so that multiple arch can be smoothly sent to installation site, then recycle principal arm 1
Multiple arch is sent to installation site, left and right section of arch is hung to corresponding installation site by the first and second auxiliary 3,4 later, and is carried out specific
Installation operation.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, but the disclosure is not limited to above-mentioned implementation
Details in mode can carry out a variety of simple variants to the technical solution of the disclosure in the range of the technology design of the disclosure,
These simple variants belong to the protection scope of the disclosure.
Claims (9)
1. a kind of multiple arch supporting trolley, including hinged principal arm (2), the first auxiliary (3) and second being arranged on chassis (1) side by side
Auxiliary (4), principal arm setting are separately positioned on principal arm two sides, principal arm, the first pair in middle position, the first auxiliary and the second auxiliary
Arm, the second auxiliary are all with the cantilever crane folded with Telescopic, which is characterized in that
Multiple arch clamping device (21) are arranged in the telescopic arm end of the principal arm, the telescopic arm end setting first of first auxiliary
The second job platform (42) are arranged in the telescopic arm end of job platform (32) and boom hoisting (33), second auxiliary；
The multiple arch clamping device includes the rotary pair formed by the first slewing equipment (211), and rotary pair obtains multiple arch the
Adjustment freedom degree in single-revolution device plane of rotation；Undersetting (212) are set above first slewing equipment, a upper bracket
(213) hinged with undersetting, and oscillating oil cylinder (214) are set between upper and lower support and form a swinging pair, so that multiple arch is hung down
Directly in the adjustment freedom degree of the first slewing equipment plane of rotation；Be provided on one support stand (215) guide rail (2151), it is described on
It is provided at the top of support guide groove (2131), the guide rail cooperation of upper bracket guide groove and support stand makes upper bracket and supporting table
Frame forms one group of prismatic pair, and the side of upper bracket is connect with one end of translation oil cylinder (216), and the other end of translation oil cylinder connects branch
Rack is supportted, flexible by translation oil cylinder moves back and forth support stand along guide groove, and multiple arch is made to obtain horizontal direction adjustment certainly
By spending；Multiple fixation devices (218) for fixing multiple arch are arranged in above the middle part of support stand.
2. multiple arch supporting trolley according to claim 1, which is characterized in that the fixed device includes solid with support stand
Surely the fixing seat (2181) connected, the top of fixing seat are equipped with the V-type guide groove for being placed in multiple arch, the two sides difference of fixing seat
The middle part of hinged clamp arm (2183), and the lower end of two clamp arms is connected through clamping cylinder (2182), is stretched out by clamping cylinder
Two clamp arms are acted on, two clamp arm tops is shunk and pushes down multiple arch.
3. multiple arch supporting trolley according to claim 1, which is characterized in that the end setting floating branch of the support stand
Support arrangement (217).
4. multiple arch supporting trolley according to claim 3, which is characterized in that the floating support device includes being set to branch
Support the drive cylinder (2171) of rack lower surface and the swinging frame (2172) set on support stand upper surface one end, swinging frame top
Be provided with support rod (2173), the middle part of swinging frame and support stand are hinged, the bottom of swinging frame extend to support stand in the following,
One end of drive cylinder and the bottom of swinging frame are hinged, and the other end of drive cylinder is fixedly connected with support stand.
5. multiple arch supporting trolley according to claim 1, which is characterized in that the support stand is carrying out multiple arch supporting work
Aerial work platform is used as after industry.
6. multiple arch supporting trolley according to claim 1, which is characterized in that the multiple arch is arranged side by side by more Pin arches
And with accordingly connect the molding arch that transverse bar and steel mesh be welded.
7. multiple arch supporting trolley according to claim 1, which is characterized in that the boom hoisting is fixed at the first pair
The telescopic arm end bottom of arm, and it includes lifting rope (331) that upper end is fixed on winch and is connected to the first of lifting rope lower end
Suspension hook (332).
8. multiple arch supporting trolley according to claim 1, which is characterized in that first job platform includes and first is secondary
The second slewing equipment (321) of arm connection, the second slewing equipment top are provided with platform (322), and outside is provided in front of platform
For clamping the first clamping device (323) of multiple arch, the first clamping device is nearby provided with the first volume of the second suspension hook (324)
Raise hoisting mechanism (325).
9. multiple arch supporting trolley according to claim 1, which is characterized in that second job platform includes and second is secondary
The third slewing equipment (421) of arm connection, third slewing equipment top are provided with platform (422), and outside is provided in front of platform
Second clamping device (423), the second clamping device are nearby provided with the second elevator hoisting mechanism of third suspension hook (424)
(425).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811130402.8A CN109057835B (en) | 2018-09-27 | 2018-09-27 | Multi-arch support trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811130402.8A CN109057835B (en) | 2018-09-27 | 2018-09-27 | Multi-arch support trolley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109057835A true CN109057835A (en) | 2018-12-21 |
| CN109057835B CN109057835B (en) | 2024-06-14 |
Family
ID=64765973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811130402.8A Active CN109057835B (en) | 2018-09-27 | 2018-09-27 | Multi-arch support trolley |
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| Country | Link |
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| CN (1) | CN109057835B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869169A (en) * | 2019-04-03 | 2019-06-11 | 蓝传雯 | A kind of arch clamping cantilever crane |
| CN110159322A (en) * | 2019-06-05 | 2019-08-23 | 四川蓝海智能装备制造有限公司 | A kind of clamping device and steel arch-shelf installation trolley for steel arch-shelf |
| CN113353861A (en) * | 2021-06-22 | 2021-09-07 | 盐城华夏高空建筑防腐维修有限公司 | Crank arm type lifter with high structural strength |
| CN113464177A (en) * | 2021-08-05 | 2021-10-01 | 长沙科达智能装备股份有限公司 | Tunnel arch centering machine and arch centering construction method |
| CN113958346A (en) * | 2021-10-21 | 2022-01-21 | 中国铁建重工集团股份有限公司 | Many pin bow member installation device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869169A (en) * | 2019-04-03 | 2019-06-11 | 蓝传雯 | A kind of arch clamping cantilever crane |
| CN109869169B (en) * | 2019-04-03 | 2023-10-20 | 四川蓝海智能装备制造有限公司 | Arch frame clamping arm support |
| CN110159322A (en) * | 2019-06-05 | 2019-08-23 | 四川蓝海智能装备制造有限公司 | A kind of clamping device and steel arch-shelf installation trolley for steel arch-shelf |
| CN110159322B (en) * | 2019-06-05 | 2024-05-31 | 四川蓝海智能装备制造有限公司 | Clamping device for steel arch and steel arch mounting trolley |
| CN113353861A (en) * | 2021-06-22 | 2021-09-07 | 盐城华夏高空建筑防腐维修有限公司 | Crank arm type lifter with high structural strength |
| CN113464177A (en) * | 2021-08-05 | 2021-10-01 | 长沙科达智能装备股份有限公司 | Tunnel arch centering machine and arch centering construction method |
| CN113958346A (en) * | 2021-10-21 | 2022-01-21 | 中国铁建重工集团股份有限公司 | Many pin bow member installation device |
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| CN109057835B (en) | 2024-06-14 |
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