CN108002229A - A kind of low clearance box culvert part loop wheel machine with turn over function - Google Patents
A kind of low clearance box culvert part loop wheel machine with turn over function Download PDFInfo
- Publication number
- CN108002229A CN108002229A CN201711209478.5A CN201711209478A CN108002229A CN 108002229 A CN108002229 A CN 108002229A CN 201711209478 A CN201711209478 A CN 201711209478A CN 108002229 A CN108002229 A CN 108002229A
- Authority
- CN
- China
- Prior art keywords
- upset
- box culvert
- raising
- culvert part
- cart
- 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.)
- Granted
Links
- 230000007306 turnover Effects 0.000 title claims abstract description 18
- 238000010010 raising Methods 0.000 claims abstract description 51
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 239000000725 suspension Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000003137 locomotive effect Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims 1
- 230000032258 transport Effects 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000004804 winding Methods 0.000 description 6
- 206010052428 Wound Diseases 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/16—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/14—Trolley or crane travel drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
- B66D3/08—Arrangements of sheaves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewage (AREA)
Abstract
The invention discloses a kind of low clearance box culvert part loop wheel machine with turn over function, including big vehicle carriage, cart roller is provided with big vehicle carriage, cart roller is connected with cart roller driving device, cart roller is arranged on cart track, and big vehicle carriage can be moved with cart roller along cart track；Moving carriage is arranged on big vehicle carriage, upset electric block and raising electric block are provided with moving carriage, upset electric block is connected with the upset pulley on reversal hanger, raising electric block is connected with the lifting hole(eyelet) on reversal hanger, and box culvert part clamping cylinder and box culvert part holding device corresponding with box culvert part clamping cylinder are additionally provided with reversal hanger.The present invention has the characteristics that highly practical, accurate positioning, efficient, rational in infrastructure, meets the demand that client's small space transports now, accelerates the production efficiency of Transport Machinery, reduces the labour cost of enterprise, increases the economic benefit of enterprise.
Description
Technical field
The invention belongs to urban rail transit construction technical field, and in particular to a kind of low clearance box culvert part with turn over function
Loop wheel machine.
Background technology
With Construction of Urban Rail Traffic, shield machine is widely used, and shield need to be lifted with box culvert part inside shield steel structure,
Narrow space requires the upset of loop wheel machine head room and box culvert part transhipment.However, traditional loop wheel machine can only realize vertical lift, and
It can not meet space requirement.
The content of the invention
The present invention is directed to the shortcomings of the prior art, there is provided a kind of low clearance box culvert part with turn over function
Loop wheel machine.
The purpose of the present invention is what is realized in the following manner：
A kind of low clearance box culvert part loop wheel machine with turn over function, including big vehicle carriage, are provided with cart roller on big vehicle carriage,
Cart roller is connected with cart roller driving device, and cart roller is arranged on cart track, and big vehicle carriage can be with cart roller
Moved along cart track；Moving carriage is arranged on big vehicle carriage, and upset electric block and raising are provided with moving carriage
With electric block, upset electric block is connected with the upset pulley on reversal hanger, raising electric block and reversal hanger
On lifting hole(eyelet) connection, be additionally provided with box culvert part clamping cylinder and box culvert part top corresponding with box culvert part clamping cylinder on reversal hanger
Tight device.
The upset includes upset with motor, upset with reel, upset with steel wire rope and upset pulley with electric block
Group, the one ends wound of upset steel wire rope is on upset reel, and the other end is around on upset pulley blocks and reversal hanger
It is fixed on after upset pulley in moving carriage, upset is connected with motor by shaft coupling with upset with reel.
The raising includes raising with motor, raising with reel, steel wire ropes for hoisting and raising pulley with electric block
Group, the one ends wound of steel wire ropes for hoisting is on raising reel, and the other end is around raising with being fixed on locomotive after pulley blocks
On frame, raising with being provided with suspension hook on pulley blocks, suspension hook through the lifting hole(eyelet) on reversal hanger, raising motor by shaft coupling with
Raising is connected with reel.
Moving carriage track is provided with the top of the big vehicle carriage, moving carriage can be moved along moving carriage track.
Hydraulic push rod is further included, one end of hydraulic push rod is connected with big vehicle carriage, the other end and locomotive of hydraulic push rod
Frame connects.
The moving carriage roller to match with moving carriage track is provided with the moving carriage.
The upset electric block is one.
The raising electric block is two.
Centering limiting device is provided with the moving carriage.
Relative to the prior art, the low clearance box culvert part loop wheel machine provided by the invention with turn over function, suitable for hanging piece
Crawl, upset, transport and unclasp, being spatially separating arrangement by electric block realizes structure low headroom, meets complete machine narrow
The demand of small space transhipment box culvert part；Using guider and hydraulic push rod realize moving carriage on vertical track direction ±
300mm is precisely translated so that the transhipment and installation of box culvert part are more accurate；Three electric blocks are changed and are turned over by wire rope winding
Rotary lifting clamping device is realized the upset of box culvert part and is unclasped.There is the present invention highly practical, accurate positioning, efficient, structure to close
The characteristics of reason, meet the demand of client's small space transport now, accelerate the production efficiency of Transport Machinery, reduce enterprise
Labour cost, increase the economic benefit of enterprise.
Brief description of the drawings
When Fig. 1 is that reversal hanger is horizontal with vertical position, front view of the invention.
Fig. 2 is the enlarged drawing of part A in Fig. 1.
Fig. 3 is the enlarged drawing of part B in Fig. 1.
Fig. 4 is the enlarged drawing of C portion in Fig. 1.
Fig. 5 is the enlarged drawing of D parts in Fig. 1.
Fig. 6 is big vehicle carriage and the top view of moving carriage.
Fig. 7 is the enlarged drawing of E parts in Fig. 6.
Fig. 8 is the front view of moving carriage.
Fig. 9 is the top view of moving carriage.
Figure 10 is the enlarged drawing of F parts in Fig. 9.
Figure 11 is the front view of reversal hanger and box culvert part.
Figure 12 is the top view of reversal hanger and box culvert part.
Figure 13 is steel wire ropes for hoisting and upset wirerope-winding schematic diagram.
Wherein, 1- carts roller driving device；The big vehicle carriages of 2-；3- cart rollers；4- cart tracks；5- moving carriage；
6- upset electric blocks；601- upset motors；602- upset reels；603- upset steel wire ropes；604- upsets are slided
Wheel group；7- raising electric blocks；701- raising motors；702- raising reels；703- steel wire ropes for hoisting；704- raisings
Use pulley blocks；705- suspension hooks；8- reversal hangers；801- overturns pulley；802- lifting hole(eyelet)s；803- box culvert part clamping cylinders；804- casees
Contain part holding device；9- moving carriage tracks；10- hydraulic push rods；11- moving carriage rollers；12- box culvert parts.
Embodiment
As shown in attached drawing 1-12, a kind of low clearance box culvert part loop wheel machine with turn over function, including big vehicle carriage 2, cart
Cart roller 3 is provided with vehicle frame 2, cart roller 3 is connected with cart roller driving device 1, and cart roller 3 is arranged on big track
On road 4, big vehicle carriage 2 can be moved with cart roller 3 along cart track 4；Moving carriage 5 is arranged on big vehicle carriage 2, locomotive
Upset electric block 6 and raising electric block 7, upset electric block 6 and turning on reversal hanger 8 are provided with frame 5
Turn pulley 801 to connect, raising electric block 7 is connected with the lifting hole(eyelet) 802 on reversal hanger 8, and case is additionally provided with reversal hanger 8
Contain part clamping cylinder 803 and box culvert part holding device 804 corresponding with box culvert part clamping cylinder 803.
As shown in Figure 6 and 9, upset includes upset with motor 601, upset with reel 602, upset steel with electric block 6
Pulley blocks 604 are used in cord 603 and upset, upset with the one ends wound of steel wire rope 603 on upset reel 602, the other end around
Upset is crossed with being fixed on after the upset pulley 801 on pulley blocks 604 and reversal hanger 8 in moving carriage 5, motor 601 is used in upset
It is connected by shaft coupling with upset reel 602.
Upset changes the direction of upset steel wire rope 603 with electric block 6 by upset pulley blocks 604 so that when turning over
When motor 601 of converting drives upset with the rolling winding upset steel wire rope 603 of reel 602, reversal hanger 8 can be overturn counterclockwise
90°；, can be suitable by reversal hanger 8 when upset drives upset reel 602 to roll with motor 601 unclamps upset steel wire rope 603
Hour hands overturn 90 °, so as to fulfill the upset of reversal hanger 8.
As shown in Figure 6 and 9, raising includes raising with motor 701, raising with reel 702, raising steel with electric block 7
Cord 703 and raising pulley blocks 704, the one ends wounds of steel wire ropes for hoisting 703 in raising with reel 702, the other end around
Raising is crossed with being fixed on after pulley blocks 704 in moving carriage 5, raising is worn with suspension hook 705, suspension hook 705 is provided with pulley blocks 704
The lifting hole(eyelet) 802 on reversal hanger 8 is crossed, raising motor 701 is connected by shaft coupling with raising reel 702.
Raising with electric block 7 by raising pulley blocks 704 change steel wire ropes for hoisting 703 direction so that when rise
When rising with 702 rolling winding steel wire ropes for hoisting 703 of the drive raising of motor 701 reel, reversal hanger 8 can be lifted up；
When raising drives raising reel 702 to roll with motor 701 unclamps steel wire ropes for hoisting 703, can by reversal hanger 8 downwards under
Drop, so as to fulfill the lifting of reversal hanger 8.
Upset is as shown in figure 13 with the wirerope-winding figure of electric block 6 and raising electric block 7.
The big top of vehicle carriage 2 is provided with moving carriage track 9, and moving carriage 5 can be moved along moving carriage track 9.
Further include hydraulic push rod 10, one end of hydraulic push rod 10 is connected with big vehicle carriage 2, the other end of hydraulic push rod 10 with
Moving carriage 5 connects.
The moving carriage roller 11 to match with moving carriage track 9 is provided with moving carriage 5, hydraulic push rod 10 can drive
Dynamic moving carriage roller 11 is moved along moving carriage track 9.
Upset electric block 6 is one.
Raising electric block 7 is two.
Centering limiting device is provided with moving carriage 5.
The course of work of the present invention is as follows：Cart roller driving device 1 drives cart roller 3 to drive big vehicle carriage 2 along big
Track road 4 is run, and after designated position is run to, big vehicle carriage 2 is out of service；Hydraulic push rod 10 promotes moving carriage 5 along shifting
Motor-car mounted track 9 realizes that ± 300mm is precisely translated, and moving carriage 5 is determined by the observation of centering limiting device or staff
Whether centering, when moving carriage 5 reach center position after, moving carriage 5 stop movement；Reversal hanger 8 is clamped by box culvert part
Box culvert part 12 is fixed on reversal hanger 8 by oil cylinder 803 and box culvert part holding device 804, then passes through upset electric block 6
By reversal hanger 8 counterclockwise upset 90 °, then by raising electric block 7 by reversal hanger 8 be promoted to top after, cart rolling
Wheel drive unit 1 drives cart roller 3 to drive big vehicle carriage 2 to be run along cart track 4, after another designated position is run to,
Big vehicle carriage 2 is out of service；90 ° of the upset clockwise of reversal hanger 8, raising electric block 7 again will by upset with electric block 6
After reversal hanger 8 is down to box culvert part installation site, the box culvert part clamping cylinder 803 on reversal hanger 8 loosens, and box culvert part 12 is installed
In place, next circulation is continued.
The lifting and upset of reversal hanger 8 can be carried out at the same time, and also can sequentially separate progress.
Low clearance box culvert part loop wheel machine provided by the invention with turn over function, suitable for the crawl, upset, transhipment of hanging piece
With unclasp, being spatially separating arrangement by electric block realizes structure low headroom, meet complete machine small space transport box culvert part
Demand；Realize that ± 300mm of the moving carriage on vertical track direction is precisely translated using guider and hydraulic push rod, make
Transhipment and the installation for obtaining box culvert part are more accurate；Three electric blocks are changed by wire rope winding and reversal hanger clamping device is real
Existing box culvert part overturns and unclasps.The present invention has the characteristics that highly practical, accurate positioning, efficient, rational in infrastructure, meets and shows
The demand of modern client's small space transport, accelerates the production efficiency of Transport Machinery, reduces the labour cost of enterprise, increase enterprise
The economic benefit of industry.
Above-described is only the preferred embodiment of the present invention, it is noted that for those skilled in the art,
Under the premise of general idea of the present invention is not departed from, some changes and improvements can also be made, these should also be considered as the present invention's
Protection domain.
Claims (9)
- A kind of 1. low clearance box culvert part loop wheel machine with turn over function, it is characterised in that：Including big vehicle carriage（2）, big vehicle carriage （2）On be provided with cart roller（3）, cart roller（3）With cart roller driving device（1）Connection, cart roller（3）It is arranged on Cart track（4）On, big vehicle carriage（2）Can be with cart roller（3）Along cart track（4）It is mobile；Moving carriage（5）It is arranged on big Vehicle carriage（2）On, moving carriage（5）On be provided with upset electric block（6）With raising electric block（7）, overturn electricity consumption Dynamic cucurbit（6）With reversal hanger（8）On upset pulley（801）Connection, raising electric block（7）With reversal hanger（8）On Lifting hole(eyelet)（802）Connection, reversal hanger（8）On be additionally provided with box culvert part clamping cylinder（803）With with box culvert part clamping cylinder （803）Corresponding box culvert part holding device（804）.
- 2. the low clearance box culvert part loop wheel machine according to claim 1 with turn over function, it is characterised in that：The upset is used Electric block（6）Including upset motor（601）, upset reel（602）, upset steel wire rope（603）With upset pulley Group（604）, upset steel wire rope（603）One ends wound in upset reel（602）On, the other end bypasses upset pulley blocks （604）And reversal hanger（8）On upset pulley（801）After be fixed on moving carriage（5）On, upset motor（601）Pass through Shaft coupling and upset reel（602）Connection.
- 3. the low clearance box culvert part loop wheel machine according to claim 1 with turn over function, it is characterised in that：The raising is used Electric block（7）Including raising motor（701）, raising reel（702）, steel wire ropes for hoisting（703）With raising pulley Group（704）, steel wire ropes for hoisting（703）One ends wound in raising reel（702）On, the other end bypasses raising pulley blocks （704）After be fixed on moving carriage（5）On, raising pulley blocks（704）On be provided with suspension hook（705）, suspension hook（705）Through turning over Rotary lifting（8）On lifting hole(eyelet)（802）, raising motor（701）Pass through shaft coupling and raising reel（702）Connection.
- 4. the low clearance box culvert part loop wheel machine according to claim 1 with turn over function, it is characterised in that：The cart car Frame（2）Top is provided with moving carriage track（9）, moving carriage（5）Can be along moving carriage track（9）It is mobile.
- 5. the low clearance box culvert part loop wheel machine according to claim 4 with turn over function, it is characterised in that：Further include hydraulic pressure Push rod（10）, hydraulic push rod（10）One end and big vehicle carriage（2）Connection, hydraulic push rod（10）The other end and moving carriage （5）Connection.
- 6. the low clearance box culvert part loop wheel machine according to claim 4 with turn over function, it is characterised in that：The locomotive Frame（5）On be provided with and moving carriage track（9）The moving carriage roller to match（11）.
- 7. the low clearance box culvert part loop wheel machine according to claim 1 with turn over function, it is characterised in that：The upset is used Electric block（6）For one.
- 8. the low clearance box culvert part loop wheel machine according to claim 1 with turn over function, it is characterised in that：The raising is used Electric block（7）For two.
- 9. the low clearance box culvert part loop wheel machine according to claim 1 with turn over function, it is characterised in that：The locomotive Frame（5）On be provided with centering limiting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711209478.5A CN108002229B (en) | 2017-11-28 | 2017-11-28 | A kind of low clearance box culvert part loop wheel machine with turn over function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711209478.5A CN108002229B (en) | 2017-11-28 | 2017-11-28 | A kind of low clearance box culvert part loop wheel machine with turn over function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108002229A true CN108002229A (en) | 2018-05-08 |
| CN108002229B CN108002229B (en) | 2019-05-28 |
Family
ID=62054144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711209478.5A Active CN108002229B (en) | 2017-11-28 | 2017-11-28 | A kind of low clearance box culvert part loop wheel machine with turn over function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108002229B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537482A (en) * | 2018-12-30 | 2019-03-29 | 中铁十四局集团有限公司 | The installation method of side box culvert |
| CN109607383A (en) * | 2019-02-12 | 2019-04-12 | 法兰泰克重工股份有限公司 | A kind of loop wheel machine |
| CN110901849A (en) * | 2019-03-21 | 2020-03-24 | 招商局邮轮制造有限公司 | Clamping trolley with adjustable clamping position, turnover equipment and clamping alignment method |
| CN111498679A (en) * | 2020-06-03 | 2020-08-07 | 中交隧道工程局有限公司 | Box culvert hoisting machine constructs |
| CN114560282A (en) * | 2022-03-15 | 2022-05-31 | 一汽解放汽车有限公司 | Sorting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202264689U (en) * | 2011-08-17 | 2012-06-06 | 秦皇岛天业通联重工股份有限公司 | Tunnel construction transport vehicle |
| CN106761856A (en) * | 2017-01-19 | 2017-05-31 | 徐工集团凯宫重工南京有限公司 | A kind of box culvert loop wheel machine for shield machine synchronization box culvert construct |
| CN106744343A (en) * | 2017-01-19 | 2017-05-31 | 徐工集团凯宫重工南京有限公司 | A kind of box culvert loop wheel machine worked under low-headroom condition |
| CN107244534A (en) * | 2017-08-11 | 2017-10-13 | 黑龙江省中信路桥材料有限公司 | Prefabricated box culvert transport vehicle |
| CN206580456U (en) * | 2017-03-20 | 2017-10-24 | 中铁十四局集团有限公司 | A kind of shield tunnel box culvert tipping arrangement |
| CN107288157A (en) * | 2017-08-11 | 2017-10-24 | 黑龙江省中信路桥材料有限公司 | Prefabricated box culvert installs car |
-
2017
- 2017-11-28 CN CN201711209478.5A patent/CN108002229B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202264689U (en) * | 2011-08-17 | 2012-06-06 | 秦皇岛天业通联重工股份有限公司 | Tunnel construction transport vehicle |
| CN106761856A (en) * | 2017-01-19 | 2017-05-31 | 徐工集团凯宫重工南京有限公司 | A kind of box culvert loop wheel machine for shield machine synchronization box culvert construct |
| CN106744343A (en) * | 2017-01-19 | 2017-05-31 | 徐工集团凯宫重工南京有限公司 | A kind of box culvert loop wheel machine worked under low-headroom condition |
| CN206580456U (en) * | 2017-03-20 | 2017-10-24 | 中铁十四局集团有限公司 | A kind of shield tunnel box culvert tipping arrangement |
| CN107244534A (en) * | 2017-08-11 | 2017-10-13 | 黑龙江省中信路桥材料有限公司 | Prefabricated box culvert transport vehicle |
| CN107288157A (en) * | 2017-08-11 | 2017-10-24 | 黑龙江省中信路桥材料有限公司 | Prefabricated box culvert installs car |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537482A (en) * | 2018-12-30 | 2019-03-29 | 中铁十四局集团有限公司 | The installation method of side box culvert |
| CN109607383A (en) * | 2019-02-12 | 2019-04-12 | 法兰泰克重工股份有限公司 | A kind of loop wheel machine |
| CN109607383B (en) * | 2019-02-12 | 2024-01-05 | 法兰泰克重工股份有限公司 | Crane |
| CN110901849A (en) * | 2019-03-21 | 2020-03-24 | 招商局邮轮制造有限公司 | Clamping trolley with adjustable clamping position, turnover equipment and clamping alignment method |
| CN110901849B (en) * | 2019-03-21 | 2023-09-26 | 招商局邮轮制造有限公司 | Clamping trolley with adjustable clamping position, turning-over equipment and clamping alignment method |
| CN111498679A (en) * | 2020-06-03 | 2020-08-07 | 中交隧道工程局有限公司 | Box culvert hoisting machine constructs |
| CN111498679B (en) * | 2020-06-03 | 2025-08-01 | 中交隧道工程局有限公司 | Box culvert hoisting mechanism |
| CN114560282A (en) * | 2022-03-15 | 2022-05-31 | 一汽解放汽车有限公司 | Sorting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108002229B (en) | 2019-05-28 |
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