CN107939423B - Be applicable to folding cantilever crane of platform truck for tunnel three-step construction - Google Patents
Be applicable to folding cantilever crane of platform truck for tunnel three-step construction Download PDFInfo
- Publication number
- CN107939423B CN107939423B CN201711399184.3A CN201711399184A CN107939423B CN 107939423 B CN107939423 B CN 107939423B CN 201711399184 A CN201711399184 A CN 201711399184A CN 107939423 B CN107939423 B CN 107939423B
- Authority
- CN
- China
- Prior art keywords
- arm
- hinged
- oil cylinder
- telescopic
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims abstract description 22
- 210000000245 forearm Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 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
-
- 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
Landscapes
- 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)
- Earth Drilling (AREA)
Abstract
The invention discloses a trolley folding arm support suitable for tunnel three-step construction, which comprises a turntable (1), a support (2), a large arm (3), a middle arm (4) and a small arm (6), wherein the support is fixed on the turntable, the large arm comprises a first rod (31), a second rod (32) and a tripod (34) which are hinged with the support to form a four-bar linkage, and a driving oil cylinder (33) capable of enabling the four-bar linkage to swing around the support is arranged on the four-bar linkage; the middle arm comprises a telescopic outer arm (41), a telescopic oil cylinder (42) and a telescopic inner arm (43), one end of the telescopic outer arm is hinged with the top angle of the tripod, the middle part is hinged with one end of a middle arm pitching oil cylinder (5), and the other end of the middle arm pitching oil cylinder is hinged with the middle part of the tripod; the telescopic inner arm is sleeved in the telescopic outer arm, and two ends of the telescopic oil cylinder are respectively hinged with the telescopic inner arm and the telescopic outer arm; two points at the outer end of the telescopic inner arm are respectively hinged with one end of a small arm (6) and one end of a small arm pitching oil cylinder (7), and the other end of the small arm pitching oil cylinder is hinged with the middle part of the small arm.
Description
Technical Field
The invention relates to tunnel construction machinery, in particular to a trolley folding arm support suitable for three-step tunnel construction.
Background
In the construction of hydropower tunnels, subway engineering, railway tunnels, highway tunnels, underground workshops and military underground engineering, if surrounding rock is unstable, steel arches (grid arches) need to be erected in advance, anchor rods are applied, and reinforcing steel bar meshes are hung. The existing auxiliary construction trolley adopts a straight arm structure which is only telescopic as shown in fig. 1, and the structure has the following defects:
1. As shown in fig. 1, even after the arm support is recovered, the arm support is suspended outside the vehicle, so that the vehicle is too long, and the driving transition trafficability of the vehicle is poor.
2. The straight arm support can not meet the three-step construction requirement: as shown in fig. 2, when the vehicle is located at the first step a and the third step C needs to be constructed, the construction distance is long, the arm support stretches out long, and the arm support is limited in movement above the third step C; as shown in fig. 3, when the vehicle is constructed on the second step B, the boom cannot be unfolded, and the third step C cannot be constructed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the cantilever crane for the trolley for tunnel construction, which can meet the three-step tunneling process of the tunnel and has a compact structure.
In order to solve the technical problems, the invention adopts the following technical scheme: the folding arm support for the trolley for the three-step tunnel construction comprises a turntable, a support, a large arm, a middle arm and a small arm, wherein the turntable is fixedly arranged on a vehicle platform, the support is fixedly arranged on the turntable,
The large arm comprises a first rod, a second rod, a driving oil cylinder and a tripod, one ends of the first rod and the second rod are respectively hinged to two ends of the support, the other ends of the first rod and the second rod are respectively hinged and fixed to two corners of the bottom of the tripod, the support, the first rod, the second rod and the tripod are connected into a group of four-bar linkage, and the four-bar linkage is provided with the driving oil cylinder capable of enabling the four-bar linkage to swing around the support;
the middle arm comprises a telescopic outer arm, a telescopic oil cylinder and a telescopic inner arm, one end of the telescopic outer arm is hinged with the top angle of the tripod, the middle part of the telescopic outer arm is hinged with one end of the middle arm pitching oil cylinder, and the other end of the middle arm pitching oil cylinder is hinged with the middle part of the tripod; the telescopic inner arm is sleeved in the telescopic outer arm, and two ends of the telescopic oil cylinder are respectively hinged with the telescopic inner arm and the telescopic outer arm;
The outer end of the telescopic inner arm is provided with two hinge points, one hinge point is hinged with the small arm, the other hinge point is hinged with one end of the small arm pitching oil cylinder, and the other end of the small arm pitching oil cylinder is hinged with the middle part of the small arm; the outer end of the forearm is provided with a working device interface.
The opposite side lengths of the four-bar linkage mechanism are two by two to form a parallelogram mechanism. When the driving oil cylinder stretches out and draws back, the large arm is driven to revolve around the support, and the horizontal posture of the tripod at the top of the large arm can not be changed in the moving process according to the parallelogram principle.
One end of the driving oil cylinder is hinged to a hinged joint of the support and the second rod, and the other end of the driving oil cylinder is hinged to the upper end of the first rod.
The turntable is arranged at the bottommost end of the whole arm support, is used for being connected with a corresponding engineering vehicle, and provides a rotary motion for the whole arm support.
The tail end of the big arm is provided with a telescopic middle arm. And the middle arm and the large arm are also hinged through a middle arm pitching oil cylinder. The pitching action of the middle arm can be realized through the middle arm pitching oil cylinder.
The front end of the middle arm is provided with a small arm, the small arm is hinged with the middle arm through a small arm pitching oil cylinder, and the pitching action of the small arm can be realized through the small arm pitching oil cylinder.
Further, the installation form of the driving oil cylinder of the large-arm four-bar linkage mechanism is not limited to the above, and the driving oil cylinder can be arranged inside the four-bar linkage mechanism and also can be arranged outside the four-bar linkage mechanism.
Furthermore, the invention realizes the recovery and folding of the arm support by the rotation of the large arm around the support, and simultaneously pushes the structures of the middle arm, the small arm and the front end of the large arm to the position above the three steps, thereby realizing the normal operation of the arm support on the three steps.
Furthermore, the invention not only can meet the requirements of the full section (one step) and two-step tunneling process of the tunnel, but also can realize different construction operations such as arch erecting operation, rock drill operation, high-altitude operation platform and the like on the three steps by arranging different working device interfaces on the small arm.
Drawings
Fig. 1 is a schematic view of a conventional folding arm support retraction structure applicable to a trolley for three-step tunnel construction.
Fig. 2 is a diagram showing a state of a boom of a conventional tunnel construction trolley at the time of construction of a first step.
Fig. 3 is a boom state diagram of a conventional tunnel construction trolley at the time of construction of a second step.
Fig. 4 is a retracted state assembly view of one embodiment of the present invention.
Fig. 5 is an assembly view of an intermediate state of one embodiment of the present invention.
Fig. 6 is an assembly view of an expanded state of an embodiment of the present invention.
Fig. 7 is an isometric view of an expanded state of an embodiment of the invention.
Detailed Description
An example of application of the present invention to a tunnel construction carriage is given below.
As shown in fig. 4 to 6, the boom for a tunnel construction trolley of the present invention includes a turntable 1, a support 2, a boom 3, a middle boom 4, a middle boom pitch cylinder 5, a forearm 6, and a forearm pitch cylinder 7.
The turntable 1 is arranged at the bottommost end of the whole arm support, is used for being connected with a corresponding engineering vehicle, and provides a rotary motion for the whole arm support. As indicated by the arrows in fig. 7.
The support 2 is fixedly arranged at the upper part of the turntable 1.
The large arm 3 comprises a first rod 31, a second rod 32, a driving oil cylinder 33 and a tripod 34, wherein one ends of the first rod 31 and the second rod 32 are respectively hinged at two ends of the support 2, and the other ends of the first rod 31 and the second rod 32 are respectively hinged and fixed at two corners of the bottom of the tripod 34, so that the support 2, the first rod 31, the second rod 32 and the tripod 34 are connected into a group of four-bar linkage, and the opposite side lengths of the four-bar linkage are equal to each other to form a group of parallelogram mechanism. One end of the driving oil cylinder 33 is hinged to a hinged point of the support 2 and the second rod 32, and the other end of the driving oil cylinder 33 is hinged to the upper end of the first rod 31. When the drive cylinder 33 expands and contracts, the large arm 3 is driven to swing around the support 2, as shown by an arrow in fig. 7, and the horizontal posture of the tripod 34 is not changed.
The middle arm 4 includes a telescopic outer arm 41, a telescopic cylinder 42 (shown by a broken line in fig. 6), and a telescopic inner arm 43. One end of the telescopic outer arm 41 is hinged with the top angle of the tripod 34, the middle part of the telescopic outer arm 41 is hinged with one end of the middle arm pitching cylinder 5, the other end of the middle arm pitching cylinder 5 is hinged with the middle part of the tripod 34, and when the middle arm pitching cylinder 5 stretches, the middle arm 4 is driven to perform pitching motion relative to the tripod 34, as shown by an arrow in fig. 7. The telescopic inner arm 43 is sleeved in the telescopic outer arm 41, and two ends of the telescopic oil cylinder 42 are hinged with the telescopic inner arm 43 and the telescopic outer arm 41 respectively. When the telescopic cylinder 42 expands and contracts, the inner arm 43 is driven to perform telescopic movement with respect to the telescopic outer arm 41, as indicated by an arrow in fig. 7.
The outer end of the telescopic inner arm 43 is provided with two hinge points, one hinge point is hinged with the small arm 6, the other hinge point is hinged with the small arm pitching oil cylinder 7, and the other end of the small arm pitching oil cylinder 7 is hinged with the middle part of the small arm 6. When the arm pitch cylinder 7 expands and contracts, the arm 6 is driven to perform a pitch motion with respect to the expansion and contraction inner arm 43. As indicated by the arrows in fig. 7.
When the arm support disclosed by the invention works, as shown in fig. 7, the large arm 3 rotates around the support 2, so that the arm support can be recovered and folded, and meanwhile, the front end structures of the middle arm 4, the small arm 6 and the large arm 3 can be extended to the upper part of the three steps. By providing different working device interfaces on the forearm 6, different construction operations such as arch erecting operation, rock drill operation, aerial work platform and the like can be performed on the three steps.
The mounting form of the drive cylinder 33 in the four-bar linkage of the large arm 3 of the present invention is not limited to this, and for example, it is also possible to provide it outside the four-bar linkage.
Claims (2)
1. The folding arm support of the trolley for the three-step construction of the tunnel comprises a turntable (1), a support (2), a large arm (3), a middle arm (4) and a small arm (6), wherein the turntable is fixedly arranged on a vehicle platform, the support is fixedly arranged on the turntable,
The large arm comprises a first rod (31), a second rod (32) and a tripod (34), one ends of the first rod and the second rod are respectively hinged to two ends of the support, the other ends of the first rod and the second rod are respectively hinged and fixed to two corners of the bottom of the tripod, the support, the first rod, the second rod and the tripod are connected into a group of four-bar linkage, and a driving oil cylinder (33) capable of enabling the four-bar linkage to swing around the support is arranged on the four-bar linkage; the middle arm comprises a telescopic outer arm (41), a telescopic oil cylinder (42) and a telescopic inner arm (43), one end of the telescopic outer arm is hinged with the top angle of the tripod, the middle part of the telescopic outer arm is hinged with one end of a middle arm pitching oil cylinder (5), and the other end of the middle arm pitching oil cylinder is hinged with the middle part of the tripod; the telescopic inner arm is sleeved in the telescopic outer arm, and two ends of the telescopic oil cylinder are respectively hinged with the telescopic inner arm and the telescopic outer arm;
One end of the driving oil cylinder is hinged to a hinged joint of the support and the second rod, and the other end of the driving oil cylinder is hinged to the upper end of the first rod;
The outer end of the telescopic inner arm is provided with two hinge points, one hinge point is hinged with the small arm (6), the other hinge point is hinged with one end of the small arm pitching oil cylinder (7), and the other end of the small arm pitching oil cylinder is hinged with the middle part of the small arm.
2. The foldable arm support for the trolley for tunnel three-step construction according to claim 1, wherein the four-bar linkage mechanism is formed into a parallelogram mechanism by two opposite side lengths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711399184.3A CN107939423B (en) | 2017-12-22 | 2017-12-22 | Be applicable to folding cantilever crane of platform truck for tunnel three-step construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711399184.3A CN107939423B (en) | 2017-12-22 | 2017-12-22 | Be applicable to folding cantilever crane of platform truck for tunnel three-step construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107939423A CN107939423A (en) | 2018-04-20 |
| CN107939423B true CN107939423B (en) | 2024-06-21 |
Family
ID=61942141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711399184.3A Active CN107939423B (en) | 2017-12-22 | 2017-12-22 | Be applicable to folding cantilever crane of platform truck for tunnel three-step construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107939423B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322682B (en) * | 2018-11-22 | 2024-03-19 | 长沙科达智能装备股份有限公司 | Manipulator for arch frame trolley |
| CN109773754B (en) * | 2018-12-11 | 2023-11-24 | 燕山大学 | Three-degree-of-freedom parallel motion platform with plane four-bar sub-closed loop folding branches |
| CN110005448A (en) * | 2019-04-10 | 2019-07-12 | 中国矿业大学 | A kind of W steel band for underground digging and anchoring integrated machine lifts system |
| CN112664226A (en) * | 2020-12-22 | 2021-04-16 | 湖北省大唐安盛建筑工程有限公司 | Top plate installation process |
| CN112879030A (en) * | 2021-03-31 | 2021-06-01 | 湖南五新隧道智能装备股份有限公司 | Swing arm mechanism, connecting rod arm frame system and drill jumbo |
| CN113090291A (en) * | 2021-04-09 | 2021-07-09 | 中铁工程服务有限公司 | Shield subway tunnel segment repair and reinforcement complete equipment |
| CN113090293A (en) * | 2021-04-09 | 2021-07-09 | 中铁工程服务有限公司 | Shield subway tunnel segment repairing and reinforcing mechanical arm equipment |
| CN114619433B (en) * | 2022-03-18 | 2023-08-15 | 唐山因泰智能科技发展有限公司 | Telescopic operating mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900442A (en) * | 2012-09-27 | 2013-01-30 | 三一重工股份有限公司 | Boom system, wet spraying machine and engineering machine with boom system |
| CN205035839U (en) * | 2015-07-31 | 2016-02-17 | 安徽惊天工程机器人有限公司 | Novel arm |
| CN207740018U (en) * | 2017-12-22 | 2018-08-17 | 长沙科达智能装备股份有限公司 | One kind being suitable for tunnel three step constructions trolley foldable arm rack |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080450A (en) * | 2010-12-27 | 2011-06-01 | 长沙科达建设机械制造有限公司 | Concrete spray mechanical arm |
| CN204827476U (en) * | 2015-08-04 | 2015-12-02 | 焦作市泰鑫机械制造有限责任公司 | Pump sending formula concrete sprayer organizes arm |
| CN205101001U (en) * | 2015-11-17 | 2016-03-23 | 湖南五新隧道智能装备股份有限公司 | Every single move arm and concrete spraying vehicle |
| CN205466194U (en) * | 2016-02-22 | 2016-08-17 | 武汉需要智能技术有限公司 | Desktop type four -axis arm of joint module ization |
-
2017
- 2017-12-22 CN CN201711399184.3A patent/CN107939423B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900442A (en) * | 2012-09-27 | 2013-01-30 | 三一重工股份有限公司 | Boom system, wet spraying machine and engineering machine with boom system |
| CN205035839U (en) * | 2015-07-31 | 2016-02-17 | 安徽惊天工程机器人有限公司 | Novel arm |
| CN207740018U (en) * | 2017-12-22 | 2018-08-17 | 长沙科达智能装备股份有限公司 | One kind being suitable for tunnel three step constructions trolley foldable arm rack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107939423A (en) | 2018-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107939423B (en) | Be applicable to folding cantilever crane of platform truck for tunnel three-step construction | |
| CN107842311B (en) | Multifunctional tunnel rock drilling and arch erecting integrated machine | |
| WO2020151504A1 (en) | Six-arm digging and anchoring integrated machine | |
| CN106837334B (en) | A kind of anchor combined machine set system of full-mechanized roadway multi rack automatic moving type branch | |
| CN105221069B (en) | A kind of rock drilling device for drill jumbo | |
| CN210317160U (en) | Anchor rod drill carriage | |
| WO2021042858A1 (en) | Overturning working platform and tunneling equipment | |
| CN217055048U (en) | Folding arm support structure, rock drilling arm support assembly and rock drilling trolley | |
| CN111425214A (en) | Full-section quick vertical anchoring and protecting tunneling and anchoring machine | |
| CN207739946U (en) | A kind of operating mechanism of multi-functional arching drill jumbo | |
| CN108360981A (en) | A kind of novel drill boom of polar coordinates positioning | |
| CN106677807A (en) | Folding steel arch frame and installation method thereof | |
| CN210370624U (en) | Six-arm tunneling and anchoring machine integrating tunneling and anchoring | |
| CN103075152B (en) | Drill loader | |
| CN110905406A (en) | Multifunctional impact type hydraulic drill carriage suitable for rock roadway working face construction | |
| CN105240029B (en) | A kind of fold mechanism and concrete spraying vehicle | |
| CN207739940U (en) | A kind of multifunctional tunnel rock drilling arching all-in-one machine | |
| CN210370487U (en) | Front detection device for underground drilling machine for coal mine | |
| CN204960800U (en) | A rock drilling device for drill jumbo | |
| CN207740018U (en) | One kind being suitable for tunnel three step constructions trolley foldable arm rack | |
| CN211202024U (en) | Wing type arm frame and anchor rod drill arm with same | |
| CN205778890U (en) | Suspended collapsible armature boring system | |
| CN212583617U (en) | Novel collapsible airborne anchor protects platform | |
| CN209742789U (en) | Tunnel coring and drilling machine | |
| CN108560427B (en) | Supporting leg in folding telescopic tunneling bridge girder erection machine and application step thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |