CN202001026U - Workpiece clamping device of tunnel construction arch centre mounting device - Google Patents
Workpiece clamping device of tunnel construction arch centre mounting device Download PDFInfo
- Publication number
- CN202001026U CN202001026U CN 201020594956 CN201020594956U CN202001026U CN 202001026 U CN202001026 U CN 202001026U CN 201020594956 CN201020594956 CN 201020594956 CN 201020594956 U CN201020594956 U CN 201020594956U CN 202001026 U CN202001026 U CN 202001026U
- Authority
- CN
- China
- Prior art keywords
- anchor clamps
- oil cylinder
- clamp device
- revolving bed
- workpiece
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model belongs to the technical field of tunnel arch centre mounting and provides a workpiece clamping device of a tunnel construction arch centre mounting device, which mainly comprises a main body, a workpiece fixture (1), a fixture revolution mechanism, a fixture swinging mechanism and a fixture opening and closing drive mechanism, wherein the workpiece fixture (1) is positioned at the front end of the workpiece clamping device and is provided with two clamping jaws for claming a workpiece; the two clamping jaws are both movable jaws (12) or one movable jaw (12) and one fixed jaw (11), and fixture opening and closing cylinders (13) are arranged corresponding to the movable jaws (12) of the workpiece fixture. The workpiece clamping device, a chassis, a large arm and a small arm together constitute the arch centre mounting device used for tunnel construction, the operation can be completed only by two people, and the labor force is greatly reduced.
Description
Technical field
The utility model belongs to bow member mounting technique field, tunnel, relates generally to a kind of workpiece clamp device of constructing tunnel bow member erection equipment.
Background technology
In the constructing tunnel at home, when running into soft stratum, need carry out bow member supporting is installed,, prevent the later stage slump to improve the stability of country rock.Supporting is installed adopts the form of bow member more, bow member is generally steel arch or flower arch, between cooperate the steel mesh reinforcement sprayed mortar to add strong supporting; Steel arch is generally bent by No. 18 or No. 20 i iron and forms, and part adopts H shaped steel, and the flower arch is then formed the frame shape assembly welding by screw-thread steel and formed.
At present, the installation of domestic bow member is generally adopted and is manually carried out operation, by manual work bow member is placed on the limit, rock stratum, fixes with anchor pole then, is in turn connected to form ring-type; Because the bow member single-piece is heavy bright generally all more than 100 kilograms, each personnel of labor operation teams and groups is generally 12 people, and is perhaps more; The old friend work the industry labour intensity be sizable, safety is relatively poor, labour hour is often longer; The bow member erection equipment can be realized the mechanized operation of bow member, replaces by many everybody work patterns of industry, be lifted to optional position in the tunnel after can heavy bow member easily grasping, and realizes Fast Installation.Save labour intensity and time greatly, safety also is improved.
Summary of the invention
The purpose of this utility model is the workpiece clamp device that proposes a kind of constructing tunnel bow member erection equipment, itself and chassis, big arm, forearm constitute the bow member erection equipment that constructing tunnel is used jointly, guaranteeing to install under the situation of safety, reduce hand labor intensity, improve installation work efficient.
The utility model is finished the technical scheme that its invention task taked:
A kind of workpiece clamp device of constructing tunnel bow member erection equipment, described workpiece clamp device mainly comprise body, work piece holder, anchor clamps slew gear, anchor clamps swing mechanism and anchor clamps opening and closing driving mechanism; Described anchor clamps slew gear has revolving bed and drives the driving element that revolving bed rotates, and the work piece holder that is connected with revolving bed is rotated under the effect of anchor clamps slew gear; The oscillating oil cylinder of described anchor clamps swing mechanism or swing promote to be connected on the body that oil cylinder is arranged on the workpiece clamp device and with the body of workpiece clamp device, the turning cylinder of oscillating oil cylinder is connected with the revolving bed of anchor clamps slew gear or swings the piston that promotes oil cylinder by the swing gyroaxis and is connected with the revolving bed of anchor clamps slew gear, makes the work piece holder that is connected with revolving bed promote to swing with revolving bed under the oil cylinder effect at oscillating oil cylinder or swing; Described work piece holder is positioned at the front end of workpiece clamp device, has the jaw of two holding workpieces, described two jaws be moving pawl or one for moving pawl, another is fixed claw; The revolving bed of described moving pawl and anchor clamps slew gear is hinged, and the revolving bed of the relative anchor clamps slew gear of described fixed claw is a fixed structure; Each moving pawl of corresponding work piece holder is provided with anchor clamps opening and closing oil cylinder, the cylinder body of described anchor clamps opening and closing oil cylinder is arranged on the revolving bed of anchor clamps slew gear and is hinged with revolving bed, the piston hinge of described anchor clamps opening and closing oil cylinder on the moving pawl of corresponding anchor clamps, constitute anchor clamps opening and closing driving mechanism; Make two moving pawls of work piece holder under the effect of anchor clamps opening and closing oil cylinder, move, fold up workpiece in opposite directions or dorsad, or make moving pawl relative fixed pawl under the effect of anchor clamps opening and closing oil cylinder of work piece holder move, fold up workpiece.
Described workpiece clamp device is connected with the forearm of bow member erection equipment by two connecting rods, described two rod hinge connections, between described workpiece clamp device, the forearm hinged and respectively with two connecting rods in a rod hinge connection, the formation quadric chain; The overturning oil cylinder that setting spins upside down the relative forearm of workpiece clamp device, the cylinder body of described overturning oil cylinder are arranged on the forearm and are hinged with forearm, and the piston of overturning oil cylinder is connected the articulated position of two connecting rods; Constitute workpiece clamp device relative forearm under the effect of overturning oil cylinder and spin upside down, adjust by the structure of the gripping workpiece angle of pitch.
The beneficial effects of the utility model are:
1, the utility model and chassis, big arm, forearm constitute the bow member erection equipment that constructing tunnel is used jointly, only need two people to get final product complete operation, have reduced the labour greatly.
2, workpiece clamp device of the present utility model has been realized mechanized operation, and staff's safety is improved.
3, the utility model is lifted to optional position in the tunnel after heavy bow member easily can being grasped, and realizes Fast Installation, saves time greatly, has improved operating efficiency.
Description of drawings
Fig. 1 is the structural representation of integral device that the utility model constitutes.
Fig. 2 is the structural representation of the utility model workpiece clamp device embodiment 1.
Fig. 3 is the structural representation of revolving bed in the utility model.
Fig. 4 is the sectional drawing of Fig. 3.
Fig. 5 is the structural representation of the utility model workpiece clamp device embodiment 2.
Fig. 6 is the structural representation of the utility model workpiece clamp device embodiment 3.
Working state schematic representation when Fig. 7 is the utility model equipment grabbing workpiece.
Fig. 8 is the working state schematic representation when lifting on the utility model equipment grabbing workpiece.
Fig. 9 is the working state schematic representation of rotation when lifting on the utility model equipment grabbing workpiece.
Among the figure: 1, anchor clamps, 2, the anchor clamps slew gear, 3, quadric chain, 4, overturning oil cylinder, 5, the anchor clamps oscillating oil cylinder, 6; forearm; 7; big arm, 8; forearm oil cylinder, 9; chassis; 11; fixed claw, 12; moving pawl, 13; opening and closing oil cylinder; 14; revolving bed, 15; rotary fluid motor, 16; revolving bed connector; 17; swing gyroaxis; 18; upset pedestal, 19; oscillating oil cylinder Connection Block, 20; oscillating oil cylinder; 21; toothed disc that tape spool holds; 22; revolution pedestal, 25; fluid motor-driven gear, 35; upset pedestal hinge ear; 36; swing promotes oil cylinder, 37; revolution pedestal hinge ear.
The specific embodiment
With embodiment the utility model is further specified in conjunction with the accompanying drawings:
As shown in Figure 1, a kind of workpiece clamp device of constructing tunnel bow member erection equipment, itself and chassis 9, big arm 7, forearm 6 constitute constructing tunnel bow member erection equipment; The chassis 9 of bow member erection equipment is provided with big arm 7 for excavator commonly used on chassis 9, big arm 7 can be moved up and down by hydraulic-driven and move forward and backward with chassis 9; At the hinged forearm 6 in end of big arm, the forearm oil cylinder 8 that makes big relatively arm 7 actions of forearm 6 is set, the cylinder body of described forearm oil cylinder 8 is positioned on the big arm 7 and is hinged with big arm, and the end of the piston of described forearm oil cylinder 8 and forearm 6 is hinged; Forearm 6 is rotated relative to big arm 7 under the effect of forearm oil cylinder 8; Described forearm 6 is connected with the workpiece clamp device by two connecting rods, described two rod hinge connections, between described forearm 6, the workpiece clamp device hinged and respectively with two connecting rods in a rod hinge connection, the formation quadric chain; Quadric chain is two covers of symmetrical structure; Its concrete structure can be: upset pedestal 18 two ends of workpiece gripping device body respectively with the end of forearm 6, two connecting rods in a rod hinge connection.The overturning oil cylinder 4 that setting spins upside down the relative forearm of workpiece clamp device, the cylinder body of described overturning oil cylinder 4 are arranged on the forearm 6 and are hinged with forearm, and symmetrically arranged two connecting rods connect by connecting axle in the two cover quadric chains; The piston of overturning oil cylinder 4 is connected with connecting axle; Described workpiece clamp device relative forearm under the effect of overturning oil cylinder is spun upside down, adjust by the angle of pitch of anchor clamps institute gripping workpiece.
As shown in Figure 2, described workpiece clamp device mainly comprises body, work piece holder, anchor clamps slew gear, anchor clamps swing mechanism and anchor clamps driving mechanism; The oscillating oil cylinder 20 of described anchor clamps swing mechanism is arranged on the body of workpiece clamp device and with the body of workpiece clamp device and is connected, the turning cylinder of oscillating oil cylinder 20 is connected with swing gyroaxis 17 splines, the revolving bed connector 16 of described revolving bed 14 and swing gyroaxis 17 bindings; The structure that the work piece holder that formation is connected with revolving bed swings with revolving bed 14 under oscillating oil cylinder 20 effects; Described anchor clamps slew gear has revolving bed 14 and drive the driving element that revolving bed rotates, the structure that the work piece holder that formation is connected with revolving bed rotates under the effect of anchor clamps slew gear.In conjunction with Fig. 3, Fig. 4, it provides the structural representation of revolving bed 14; The driving element that described driving revolving bed 14 rotates can be the toothed disc 21 that rotary fluid motor 15, tape spool hold; Toothed disc 21 engagements that the fluid motor-driven gear 25 and the tape spool of described rotary fluid motor 15 holds, the toothed disc 21 that described tape spool holds are positioned at revolution pedestal 22 and connect with the junction plate that is connected work piece holder.Described work piece holder is positioned at the front end of workpiece clamp device, has the jaw of two holding workpieces, jaw for moving pawl 12, another is fixed claw 11; Described fixed claw 11 is fixed on the junction plate of revolving bed 14, moving pawl 12 and fixed claw 11 are hinged to be that the junction plate of relative revolving bed is an articulated structure, the moving pawl 12 of corresponding work piece holder is provided with anchor clamps opening and closing oil cylinder 13, the cylinder body of described anchor clamps opening and closing oil cylinder 13 is arranged on the junction plate of revolving bed and is hinged, the piston hinge of described anchor clamps opening and closing oil cylinder 13 constitutes anchor clamps opening and closing driving mechanism on the moving pawl 12 of anchor clamps; And the moving pawl 12 relative fixed pawl 11 under 13 effects of anchor clamps opening and closing oil cylinder that constitutes work piece holder moves, folds up the structure of workpiece.
As shown in Figure 5, the basic structure of the workpiece clamp device of embodiment 2 is identical with embodiment 1, two jaws that work piece holder has are moving pawl 12, two moving pawls 12 are symmetrical structure and hinged with the junction plate of revolving bed 14 respectively, two moving pawls of corresponding work piece holder are respectively arranged with anchor clamps opening and closing oil cylinder 13, the cylinder body of described anchor clamps opening and closing oil cylinder 13 is hinged on the junction plate of anchor clamps slew gear revolving bed, the piston hinge of described anchor clamps opening and closing oil cylinder 13 on the moving pawl 12 of corresponding anchor clamps, concrete structure can be: the piston nose connecting bushing of anchor clamps opening and closing oil cylinder 13, the described axle sleeve that is connected with piston nose is enclosed within on the fixed axis of the moving pawl of anchor clamps, constitutes anchor clamps opening and closing driving mechanism; And two moving pawls 12 that constitute work piece holder move, fold up the structure of workpiece in opposite directions or dorsad under 13 effects of anchor clamps opening and closing oil cylinder.
As shown in Figure 6, the basic structure of described workpiece clamp device is identical with embodiment 1, embodiment 2, the swing of anchor clamps swing mechanism promotes to be connected with the body of workpiece clamp device on the body that oil cylinder 36 is arranged on the workpiece clamp device and by upset pedestal hinge ear 35, it is hinged with revolution pedestal hinge ear 37 that swing promotes the piston of oil cylinder 36, constitutes the structure that the work piece holder that is connected with the revolution pedestal swings with revolving bed under swing promotion oil cylinder 36 acts on.
As shown in Figure 7, when workpiece is placed on the ground, the distance of adjusting bow member erection equipment and bow member part to be installed that moves forward and backward by chassis 9; forearm oil cylinder 8 drives forearm 6; make the anchor clamps of forearm 6 front ends be close to bow member part to be installed, anchor clamps 1 are by anchor clamps opening and closing driving mechanism with bow member part to be installed promptly; As shown in Figure 8, the anchor clamps that clamp behind the bow member part to be installed rise under big arm 7 effects, simultaneously; forearm 6 can make forearm 6 and whole work-piece clamp device rise overally under the driving of forearm oil cylinder 8; after reaching the required height of bow member part to be installed; overturning oil cylinder 4, quadric chain 3 upwards overturn bow member part to be installed and adjust the luffing angle of bow member part to be installed, make bow member part to be installed roughly put in place; As shown in Figure 9, adjust deflecting of bow member part to be installed by the anchor clamps swing mechanism then, adjust bow member part to be installed hoop position by the anchor clamps slew gear at last and make its installation screw hole accurately corresponding, finish the installation of bow member with the ground fixture.
Claims (3)
1. the workpiece clamp device of a constructing tunnel bow member erection equipment, it is characterized in that: described workpiece clamp device mainly comprises body, work piece holder (1), anchor clamps slew gear, anchor clamps swing mechanism and anchor clamps opening and closing driving mechanism; Described anchor clamps slew gear has revolving bed (14) and drives the driving element that revolving bed rotates, and the work piece holder (1) that is connected with revolving bed is rotated under the effect of anchor clamps slew gear; Oscillating oil cylinder of described anchor clamps swing mechanism (20) or swing promote to be connected on the body that oil cylinder (36) is arranged on the workpiece clamp device and with the body of workpiece clamp device, the turning cylinder of oscillating oil cylinder (5) is connected with the revolving bed (14) of anchor clamps slew gear by swing gyroaxis (17) or swings the piston that promotes oil cylinder (36) and is connected with the revolving bed (14) of anchor clamps slew gear, makes the work piece holder (1) that is connected with revolving bed promote to swing with revolving bed (14) under oil cylinder (36) effect at oscillating oil cylinder (5) or swing; Described work piece holder (1) is positioned at the front end of workpiece clamp device, the jaw with two holding workpieces; Described two jaws be moving pawl (12) or one for moving pawl (12), another is fixed claw (11); Described moving pawl (12) is hinged with the revolving bed (14) of anchor clamps slew gear, and described fixed claw (11) revolving bed (14) of anchor clamps slew gear relatively is a fixed structure; Each moving pawl (12) of corresponding work piece holder is provided with anchor clamps opening and closing oil cylinder (13), the revolving bed (14) that the cylinder body of described anchor clamps opening and closing oil cylinder (13) is arranged on the anchor clamps slew gear is gone up and is hinged with revolving bed (14), the piston hinge of described anchor clamps opening and closing oil cylinder (13) on the moving pawl (12) of corresponding anchor clamps, constitute anchor clamps opening and closing driving mechanism; Make two moving pawls (12) of work piece holder under the effect of anchor clamps opening and closing oil cylinder, move, fold up workpiece in opposite directions or dorsad, or make a moving pawl (12) relative fixed pawl (11) under the effect of anchor clamps opening and closing oil cylinder of work piece holder move, fold up workpiece.
2. the workpiece clamp device of constructing tunnel bow member erection equipment according to claim 1 is characterized in that: the driving element that described driving revolving bed (14) rotates can be the toothed disc (21) that rotary fluid motor (15), tape spool hold; The fluid motor-driven gear (25) of described rotary fluid motor (15) meshes with the toothed disc (21) that tape spool holds, and the toothed disc that described tape spool holds (21) is positioned at revolution pedestal (22) and connects with the junction plate that is connected work piece holder.
3. the workpiece clamp device of constructing tunnel bow member erection equipment according to claim 1, it is characterized in that: described workpiece clamp device is connected with the forearm (6) of bow member erection equipment by two connecting rods, described two rod hinge connections, between described workpiece clamp device, the forearm (6) hinged and respectively with two connecting rods in a rod hinge connection, constitute quadric chain; It is last and hinged with forearm that the overturning oil cylinder (4) that setting spins upside down the relative forearm of workpiece clamp device, the cylinder body of described overturning oil cylinder (4) are arranged on forearm (6), and the piston of overturning oil cylinder (4) is connected the articulated position of two connecting rods; Constitute workpiece clamp device relative forearm under the effect of overturning oil cylinder and spin upside down, adjust by the structure of the gripping workpiece angle of pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020594956 CN202001026U (en) | 2010-11-08 | 2010-11-08 | Workpiece clamping device of tunnel construction arch centre mounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020594956 CN202001026U (en) | 2010-11-08 | 2010-11-08 | Workpiece clamping device of tunnel construction arch centre mounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001026U true CN202001026U (en) | 2011-10-05 |
Family
ID=44703771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020594956 Expired - Fee Related CN202001026U (en) | 2010-11-08 | 2010-11-08 | Workpiece clamping device of tunnel construction arch centre mounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001026U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244151A (en) * | 2013-05-16 | 2013-08-14 | 湖南江麓实业发展有限公司 | Multifunctional support trolley for tunnel arches |
| CN103291330A (en) * | 2013-05-16 | 2013-09-11 | 湖南江麓实业发展有限公司 | All-round manipulator special for tunnels |
| CN105909282A (en) * | 2016-07-04 | 2016-08-31 | 徐工集团工程机械有限公司 | Arching erection machine and underground tunnel construction equipment |
| CN107514270A (en) * | 2017-09-28 | 2017-12-26 | 中铁五局集团有限公司 | A kind of main clamping device for the installation of constructing tunnel bow member |
| CN108756957A (en) * | 2018-04-19 | 2018-11-06 | 陕西道智能科技有限公司 | A kind of special hydraulic clamp assembly for tunnel arch installation |
| CN108979681A (en) * | 2018-09-06 | 2018-12-11 | 中铁长安重工有限公司 | A kind of clamping device of adjustable arch installation site |
| CN109368513A (en) * | 2018-12-14 | 2019-02-22 | 山河智能装备股份有限公司 | Tunnel form transfer car(buggy) |
| CN109538252A (en) * | 2018-11-20 | 2019-03-29 | 四川蓝海智能装备制造有限公司 | The erection method of multi-functional arch trolley and more Pin arches |
| CN111604879A (en) * | 2020-06-09 | 2020-09-01 | 中国煤炭科工集团太原研究院有限公司 | Multi-joint arm type shed dismantling/erecting robot for coal mine |
| CN113441858A (en) * | 2021-07-09 | 2021-09-28 | 中国铁建重工集团股份有限公司 | Automatic sealing and mounting operation device and operation method for TBM steel arch frame |
| CN116735329A (en) * | 2023-06-09 | 2023-09-12 | 中国水产科学研究院黑龙江水产研究所 | Rapid pretreatment device for water environment DNA molecular sample |
-
2010
- 2010-11-08 CN CN 201020594956 patent/CN202001026U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291330A (en) * | 2013-05-16 | 2013-09-11 | 湖南江麓实业发展有限公司 | All-round manipulator special for tunnels |
| CN103244151B (en) * | 2013-05-16 | 2016-01-20 | 湖南江麓实业发展有限公司 | Tunnel arch multifunctional supporting chassis |
| CN103244151A (en) * | 2013-05-16 | 2013-08-14 | 湖南江麓实业发展有限公司 | Multifunctional support trolley for tunnel arches |
| CN105909282A (en) * | 2016-07-04 | 2016-08-31 | 徐工集团工程机械有限公司 | Arching erection machine and underground tunnel construction equipment |
| CN107514270A (en) * | 2017-09-28 | 2017-12-26 | 中铁五局集团有限公司 | A kind of main clamping device for the installation of constructing tunnel bow member |
| CN108756957B (en) * | 2018-04-19 | 2020-04-07 | 陕西道一智能科技有限公司 | Special hydraulic clamp assembly for tunnel arch center installation |
| CN108756957A (en) * | 2018-04-19 | 2018-11-06 | 陕西道智能科技有限公司 | A kind of special hydraulic clamp assembly for tunnel arch installation |
| CN108979681A (en) * | 2018-09-06 | 2018-12-11 | 中铁长安重工有限公司 | A kind of clamping device of adjustable arch installation site |
| CN108979681B (en) * | 2018-09-06 | 2024-01-05 | 中铁长安重工有限公司 | Clamping device capable of adjusting arch frame installation position |
| CN109538252A (en) * | 2018-11-20 | 2019-03-29 | 四川蓝海智能装备制造有限公司 | The erection method of multi-functional arch trolley and more Pin arches |
| CN109538252B (en) * | 2018-11-20 | 2023-10-27 | 四川蓝海智能装备制造有限公司 | Multifunctional arch frame trolley and erection method of multiple arch frames |
| CN109368513A (en) * | 2018-12-14 | 2019-02-22 | 山河智能装备股份有限公司 | Tunnel form transfer car(buggy) |
| CN111604879A (en) * | 2020-06-09 | 2020-09-01 | 中国煤炭科工集团太原研究院有限公司 | Multi-joint arm type shed dismantling/erecting robot for coal mine |
| CN113441858A (en) * | 2021-07-09 | 2021-09-28 | 中国铁建重工集团股份有限公司 | Automatic sealing and mounting operation device and operation method for TBM steel arch frame |
| CN116735329A (en) * | 2023-06-09 | 2023-09-12 | 中国水产科学研究院黑龙江水产研究所 | Rapid pretreatment device for water environment DNA molecular sample |
| CN116735329B (en) * | 2023-06-09 | 2023-12-26 | 中国水产科学研究院黑龙江水产研究所 | Rapid pretreatment device for water environment DNA molecular sample |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202001026U (en) | Workpiece clamping device of tunnel construction arch centre mounting device | |
| CN102022127B (en) | Arch center mounting device for construction of tunnel | |
| CN203114301U (en) | Tunnel construction arching frame installation device for excavator | |
| CN202609821U (en) | Fixed timber grab | |
| CN201363107Y (en) | Cantilever type drill pipe racking device | |
| CN203333167U (en) | Drilling racking platform manipulator | |
| CN103133018A (en) | Tunnel construction arch center installation device used by excavator | |
| CN202007671U (en) | Lagging jack installation equipment for tunnel construction | |
| CN203031161U (en) | Mechanical arm assisting production of steel structural components | |
| CN202428437U (en) | Mechanical hand for replacing slag blocking gate valve mechanism | |
| CN109798079A (en) | A kind of telescopic boom iron driller | |
| CN108942910B (en) | Automatic drill rod arranging manipulator of core drilling machine | |
| CN202001025U (en) | Workpiece turning mechanism for arch frame installation equipment in tunnel construction | |
| CN109607395A (en) | A kind of mechanical arm | |
| CN103213909A (en) | Telescopic boom crane with counterweight system | |
| CN209906198U (en) | Hoisting clamping mechanism of crane | |
| CN219061695U (en) | Arch frame robotic arm grabbing and lifting device | |
| CN203033650U (en) | Pneumatic lifting tool | |
| CN219359505U (en) | Arch frame grabbing manipulator | |
| CN210388938U (en) | Work fixture | |
| CN201931239U (en) | Moving arm welding positioner | |
| CN201745088U (en) | Novel shield segment turnover device | |
| CN102151702B (en) | Rear guide device for seamless steel tube rolling mill | |
| CN108840224A (en) | A kind of turnable suspender of concrete precast block | |
| CN208932797U (en) | A kind of turnable suspender of concrete precast block |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20191108 |