CN105480847A - Double-limb lifting sling and combined lifting sling - Google Patents
Double-limb lifting sling and combined lifting sling Download PDFInfo
- Publication number
- CN105480847A CN105480847A CN201610045075.0A CN201610045075A CN105480847A CN 105480847 A CN105480847 A CN 105480847A CN 201610045075 A CN201610045075 A CN 201610045075A CN 105480847 A CN105480847 A CN 105480847A
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- Prior art keywords
- chain
- lifting
- lifting chain
- load
- attachment face
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Classifications
-
- 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
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/125—Chain-type slings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a double-limb lifting sling which comprises a lifting chain arranged on a lifting frame, and hooks arranged at the end parts of the lifting chain, and further comprises a chain wheel, wherein the lifting chain consists of a plurality of chain rings connected end to end; the chain wheel is rotationally mounted in the lifting frame through a bearing shaft; the lifting chain is hung on the chain wheel; a plurality of ring-shaped grooves are preformed in the peripheral direction in the outer end surface of the chain wheel, and two adjacent ring-shaped grooves are connected through a rectangular groove. When the lifting chain tightens, one of two adjacent chain rings is matched with the corresponding rectangular groove, and the other chain ring is matched with the corresponding ring-shaped grooves. The invention further provides a combined lifting sling. The rectangular grooves and the ring-shaped grooves are formed in the peripheral direction in the outer end surface of the chain wheel, and are matched with the lifting chain, when the bearing shaft is rotated, the chain wheel is driven by the bearing shaft to rotate, and then the lifting chain is driven to rotate, so as to finish adjustment of posture and angle of a hung object.
Description
Technical field
The invention belongs to hoisting device field, be specifically related to a kind of two limb suspender and combined sling.
Background technology
Now two limb suspender generally employs socially, a hoist frame and lifting chain, can sling most object substantially in two Heave Heres.This suspender is widely used in automobile, machinery, the shipment of electromechanical industries Related product, transfer.This pair of limb suspender also through being commonly used in production, in fittage, as the installation of installation engine speed changer assembly and the installation of some larger component of machines of the change-speed box of automobile.
The lifting chain of this suspender is regular length, is not suitable for all lifting states, and the lifting state of object needs certain inclination angle sometimes.Such as driving engine, the installation of transmission assembly, its integral structure is certain inclination angle; Install, the state changing change-speed box during change-speed box is also need certain inclination angle.
In prior art, as shown in Figure 1, in order to meet the angle requirement of driving engine, change-speed box, the lifting chain 2a length of two limb suspender hoist frame 1a both sides is Length discrepancy, can coordinate the lifting state of inclination to a certain extent.But degree of dip is change during practical set, need to regulate according to the setting angle of actual conditions to driving engine, change-speed box, two limb suspender both sides lifting chain length of prior art is fixed, and cannot regulate the angle of laying of the hanging object such as driving engine, change-speed box.
In some cases, the angle of assembling mal of the hanging object such as driving engine, change-speed box, installation can become wastes time and energy, and reduces production efficiency, and the cruelty of assembly crewman can be caused to operate, even defective work piece.The danger of operating personal also can be increased when lifting large workpiece.
Summary of the invention
The object of this invention is to provide a kind of two limb suspender and combined sling, during to solving the installation of the hanging object such as driving engine, change-speed box, laying the problem that angle cannot be regulated by two limb suspender.
The invention provides a kind of two limb suspender to achieve these goals, comprise the lifting chain of hanging on hoist frame, with the hook being located at described lifting chain end, described lifting chain is joined end to end by multiple chain link and forms, also comprise sprocket wheel, described sprocket wheel is rotatably installed in described hoist frame by load-bearing axle, and described lifting chain hanging is on described sprocket wheel; On the outer face of described sprocket wheel circumferential interval predeterminable range be provided with multiple circular grooves, and to be connected by a rectangular channel between circular groove described in adjacent two; When described lifting chain is tightened, in adjacent two chain links, the one in both and described rectangular channel match, and another one and described circular groove match.
Preferably, described hoist frame is stretched out in one end of described load-bearing axle, and external part is fixed with a turbine, and the top of described turbine is meshed with the worm screw of a horizontal positioned, and when rotating described worm screw, described sprocket wheel drives described lifting chain to move along the outer face of institute's sprocket wheel.
Preferably, described hoist frame is provided with load-bearing axle attachment face and worm shaft attachment face, and described load-bearing axle attachment face is opposite disposed and top connected; Described worm shaft attachment face is along described load-bearing axle attachment face both sides Vertical dimension extension.
Preferably, described worm shaft attachment face is located on the load-bearing axle attachment face of described load-bearing axle external part.
Preferably, one end of worm shaft is arranged on the worm shaft attachment face of side by nut rotation, after the other end of described worm shaft stretches out the worm shaft attachment face of opposite side, is connected with a crank.
Preferably, also comprise the axle sleeve be sleeved on described worm shaft, described axle sleeve is arranged on the both sides of described worm screw respectively, and one end of described axle sleeve contacts with the helical tooth of worm screw, and the other end is resisted against the inner of described worm shaft attachment face.
Preferably, also comprise the reinforced rib being located at described hoist frame top, described reinforced rib offers mounting hole, described mounting hole is built with suspension ring.
The present invention also provides a kind of combined sling, and described combined sling is made up of the two limb suspenders in two such schemes, and one end of two limb suspender lifting chain described in is connected with the top of limb suspender hoist frame two described in another.
Effect of the present invention is: arrange rectangular channel and circular groove by the outer face circumference at sprocket wheel, coordinate with lifting chain, rotate load-bearing axle, load-bearing axle drives sprocket rotation, and then drive lifting chain to rotate, complete the adjustment to hanging object attitude angle, improve work efficiency when hanging object is laid.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the present invention, for those of ordinary skill in the art, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is of the prior art pair of limb hanger structure schematic diagram;
Fig. 2 is the two limb suspender integral structure schematic diagrams in the present embodiment;
Fig. 3 is the constructional drawing of the present embodiment middle sprocket and lifting chain cooperation place;
Fig. 4 is the turbine and worm structural representation be arranged on hoist frame;
Fig. 5 is the lateral plan of Fig. 4;
Fig. 6 is the front view of Fig. 4;
Fig. 7 is the structural relation figure of turbine and worm and sprocket wheel after removal hoist frame;
Fig. 8 is the structural representation of hoist frame;
Fig. 9 is the assembly drowing of lifting chain and sprocket;
Figure 10 is state when not adjusting the two lifting of limb suspender mounted engine, change-speed box;
Figure 11 is the state of two limb suspender lifting driving engine, change speed gear box after adjustment;
Figure 12 is the structural representation of combined sling;
In prior art figure: 1a-hoist frame 2a-lifting chain
In the present embodiment figure: 1-hoist frame 2-sprocket wheel 21-circular groove 22-rectangular channel 3-lifting chain 4-load-bearing axle 5-turbine 6-worm screw 7-worm shaft 8-crank 9-axle sleeve 10-load-bearing axle attachment face 11-worm shaft attachment face 12-reinforced rib 13-suspension ring
Detailed description of the invention
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with accompanying drawing, the present invention is further detailed.
As shown in figs. 2-12, for the two limb suspender of one provided by the invention, comprise the lifting chain 3 of hanging on hoist frame 1, wherein, lifting chain 3 is joined end to end by multiple chain link and forms, and is located at the hook of lifting chain 3 end, this programme also adopts sprocket wheel 2, wherein, what sprocket wheel 2 was rotated by load-bearing axle 4 is arranged in hoist frame 1, and lifting chain 3 is hung on described sprocket wheel 2.
Sprocket wheel 2 is arranged on to limit its end float misalignment in hoist frame 1, and lifting chain 3 is one whole round-link chain, and lifting chain 3 stage casing and sprocket wheel 2 good engagement, corresponding shackle or hook are installed, the lifting appliances such as Rotary hanging hook in lifting chain 3 two ends.When lifting chain 3 length is not very long, the preferred shackle hook of hook at lifting chain 3 two ends is to eliminate the windup-degree of lifting chain 3, ensure that lifting chain 3 engages with the normal of round-link chain 2, wherein the profile of hoist frame 1 is square, also can be the circle as chain block.For increasing the bulk strength of hoist frame, hoist frame lower end can increase one or several and strengthen pin.
On the outer face of sprocket wheel 2 circumferential interval predeterminable range be provided with multiple circular grooves 21, and to be connected by a rectangular channel 22 between two adjacent circular grooves 21, lifting driving engine, when change speed gear box or other goods, lifting chain 3 is tightened, now, in two adjacent chain links, one in both and rectangular channel 22 match, another chain link and described circular groove 21 match, when tightening, chain link is pullled mutually, orthogonal, end face is respectively rectangle and annular arrangement, cooperatively interact with the rectangular channel and circular groove that are located at sprocket wheel outer face, ensure that lifting chain 3 location and installation is on sprocket wheel 2, and because sprocket wheel 2 is rotatably installed in hoist frame 1, rotate load-bearing axle 4, sprocket wheel 2 rotates, thus drive lifting chain 3 to roll on sprocket wheel, now, namely the angular adjustment of hanging object is completed, meet different angles demand.
That is, when hanging object needs to adjust angle, rotate load-bearing axle, load-bearing axle drives sprocket rotation, arranges rectangular channel and circular groove by the outer face circumference at sprocket wheel, coordinate with lifting chain, and then drive lifting chain to rotate, thus change the length of the lifting chain at sprocket wheel two ends, reach and obtain suitable lifting chain length, reach the object changing lifting attitude, thus complete the adjustment to hanging object angle.
In one preferably embodiment, adopt the form that turbine and worm coordinates, drive load-bearing axle to rotate, and then make sprocket rotation, shown in composition graphs 3-5, wherein worm gear 5 and sprocket wheel 2 to be serially connected on load-bearing axle 4 and to be connected by key and load-bearing axle 4 keeps fixed angle constant.Hoist frame 1 is stretched out in one end of load-bearing axle 4, and the top of turbine 5 is meshed with the worm screw 6 of a horizontal positioned, and worm screw 6 is arranged on outside hoist frame 1 and to remain on engagement constant with worm gear 5.
When rotary worm axle 7, worm screw 6 drives worm gear 5 to rotate, and worm gear 5 rotarily drives the co-axially fixed sprocket wheel 2 with worm gear 5 and rotates, sprocket wheel 2 rotarily drives lifting chain about 4 transmissions of engaging with it, now, two limb hangs ambilateral lifting chain 3 length and is changed, to adapt to production requirement.Worm-and-wheel gear has reduction of speed to increase the effect turned round, and worm-and-wheel gear is with auto-lock function, and when the pulling force at lifting chain 3 two ends is uneven, the latching characteristics of worm-and-wheel gear can ensure that sprocket wheel 2 can not autorotation, thus avoids the generation of accident.
Shown in composition graphs 4 and Fig. 8, in order to ensure the setting accuracy of load-bearing axle and above-mentioned worm screw, hoist frame 1 is provided with load-bearing axle attachment face 10 and worm shaft attachment face 11, wherein, load-bearing axle attachment face 10 is opposite disposed and top connected; Worm shaft attachment face 11 is along described load-bearing axle attachment face 10 both sides Vertical dimension extension.During installation, can on load-bearing axle attachment face 10 and worm shaft attachment face 11 really allocation offer assembly opening, load-bearing axle 4 and worm shaft 7 two ends are arranged in respective assembly opening respectively.This detachable mechanism also assures that the smooth assembling of sprocket wheel 3, and wherein, in order to ensure the installation direction of worm screw 6 and turbine 5, worm shaft attachment face 11 is located on the load-bearing axle attachment face 10 of described load-bearing axle 4 external part.Hoist frame 1 provides the assembly opening position of load-bearing axle 4 and worm shaft 7, can determine the assembly opening position size of load-bearing axle 4 and worm shaft 7 on hoist frame 1 according to the fitted position of worm gear 5 and worm screw 6.Hoist frame 1 ever rotates the axial force produced by worm gear 5 worm screw 6, load-bearing axle 1 and the bearing between worm shaft 7 and bearing frame 1 should use sliding bearing structure to reduce suspender volume, increases load capacity.
In the present embodiment, worm gear 5 and sprocket wheel 2 are coaxially arranged on load-bearing axle 4.Sprocket wheel 2, worm gear 5, adopts common key to connect between load-bearing axle 4, reliably ensure can not produce angle displacement between three.The longitudinal travel of worm gear 5 hoist frame 1 relative to load-bearing axle 4 limit by the self lock nut at load-bearing axle 1 two ends.
Worm shaft 7 is arranged on the worm shaft attachment face of hoist frame 1, for ensureing that worm screw 6 engages well with worm gear 5, worm screw 6 is also provided with axle sleeve 9, axle sleeve 9 is arranged on the both sides of worm screw 6 respectively, one end of axle sleeve 9 contacts with the helical tooth of worm screw 6, and the other end is resisted against the inner of described worm shaft attachment face 11.The employing of axle sleeve limits the longitudinal travel of worm screw 6 at worm shaft 7.Connect to limit it with key between worm screw 6 with worm shaft 7 relatively to rotate, worm shaft 7 limits the axial location of its relative hoist frame 1 by its shaft shoulder and nut.
For the ease of the manipulation of worm shaft, the present embodiment installs a crank 8 at worm shaft 7 end.Wherein, one end of worm shaft 7 is arranged on the worm shaft attachment face 11 of side by nut rotation, after the other end of worm shaft 7 stretches out the worm shaft attachment face 11 of opposite side, is connected with crank 8.It should be noted that, worm shaft 7 end can be one with air driven tools or can pull hand-driven six-sided head shape, also can be a Remote mechanism by driven by servomotor.
Certainly, on the hoist frame 1 in the present embodiment, also arrange suspension ring 13, so that the arrangement of hoist frame, wherein, can arrange reinforced rib 12 on hoist frame top, reinforced rib 12 offers mounting hole, suspension ring 13 are arranged in mounting hole.
The present invention realizes the mechanical self-latching characteristic due to worm gear structure, load-bearing axle only just rotates relative to hoist frame when rotating and regulating, the contact surface of hoist frame and load-bearing axle should adopt sliding friction surface, simplifies its structure on the one hand, can increase the weight capacity of contact surface on the other hand.Consider that hoist frame elastic deformation can occur when stressed, hoist frame should have and strengthen gusset ensures worm and gear normal engagement to reduce hoist frame deformation quantity.Lifting chain is one whole round-link chain, engages in the middle part of it with round-link chain.
The present embodiment also provides a kind of combined sling, and as shown in figure 12, described combined sling is made up of two limb suspenders of two such schemes, and wherein, one end of the lifting chain 3 of two limb suspender described in is connected with the top of the hoist frame 1 of limb suspender two described in another.Two two limb suspenders combinationally used, form the derricking gear that three can regulate lifting chain 3 length, for the assembling of large size special-shaped workpiece, and lifting.This combined sling also can be used for lifting by crane complicated irregular parts.When two suspenders serial connection be installed together with the use of time, three length-adjustable lifting chains 3 can be formed.Three lifting chains 3 can adjust by the three degree of freedom of lifting object, thus the variation of realization lifting pose adjustment is with satisfied production assembling demand.For realizing by the adjustment of lifting by crane gestures of object, adjustable pair of limb suspender of the present invention can use in both series connection, also both parallel connections can use formation four Heave Heres.Its aim of the combination of different modes still adjusts the attitude by lifting object for realizing in lifting process.So different array modes is all in the scope of the present invention.
Separately it should be noted that, when using this programme suspender, lifting chain 3 is unsuitable too short, and when lifting by crane position span and being constant, the too short meeting of lifting chain 3 causes the angle that lifting chain 3 is formed when lifting by crane excessive, increases the possibility that lifting chain 3 jumps tooth on sprocket wheel 2.Cannot avoid if angle is excessive when lifting chain 3 lifts by crane, two slot ring antenna can be increased in partial below, the hoist frame left and right sides and serve as idle pulley to ensure the good engagement of lifting chain 3 and round-link chain 2.For the angle preventing lifting chain 3 from being formed is excessive, also can increase by two spacing steel plates to limit the angle of lifting chain above hoist frame 1 dual-side.
The assembling mode of the suspender control end worm-and-wheel gear that schematic diagram of the present invention is shown is wherein a kind of.The worm-and-wheel gear of the control end of this suspender also can be the structure of similar brake clearance adjustment arm, and now suspender control end worm gear and load-bearing axle 4 adopt spline joint coaxially to install, and mounting hole and the hoist frame 1 of brake clearance adjustment arm keep fixing.The object of both sides lifting chain length on the adjustment sprocket wheel 2 that this structure can realize this suspender equally.So this structure is also within the scope of the present invention
Mode above only by illustrating describes some one exemplary embodiment of the present invention, undoubtedly, for those of ordinary skill in the art, when without departing from the spirit and scope of the present invention, can revise described embodiment by various different mode.Therefore, above-mentioned accompanying drawing is illustrative with being described in essence, should not be construed as the restriction to the claims in the present invention protection domain.
Claims (8)
1. a two limb suspender, comprise the lifting chain (3) of hanging on hoist frame (1), with the hook being located at described lifting chain (3) end, described lifting chain (3) is joined end to end to form by multiple chain link and it is characterized in that: also comprise sprocket wheel (2), described sprocket wheel (2) is rotatably installed in described hoist frame (1) by load-bearing axle (4), and described lifting chain (3) hanging is on described sprocket wheel (2);
On the outer face of described sprocket wheel (2) circumferential interval predeterminable range be provided with multiple circular grooves (21), and described in adjacent two between circular groove (21) by a rectangular channel (22) be connected; When described lifting chain (3) is tightened, in adjacent two chain links, the one in both and described rectangular channel (22) match, and another one and described circular groove (21) match.
2. two limb suspender as claimed in claim 1, it is characterized in that: described hoist frame (1) is stretched out in one end of described load-bearing axle (4), and external part is fixed with a turbine (5), the top of described turbine (5) is meshed with the worm screw (6) of a horizontal positioned, when rotating described worm screw (6), described sprocket wheel (2) drives described lifting chain (3) to move along the outer face of institute's sprocket wheel (2).
3. two limb suspender as claimed in claim 2, it is characterized in that: described hoist frame (1) is provided with load-bearing axle attachment face (10) and worm shaft attachment face (11), described load-bearing axle attachment face (10) is opposite disposed and top connected; Described worm shaft attachment face (11) is along described load-bearing axle attachment face (10) both sides Vertical dimension extension.
4. two limb suspender as claimed in claim 3, is characterized in that: described worm shaft attachment face (11) is located on the load-bearing axle attachment face (10) of described load-bearing axle (4) external part.
5. the two limb suspenders as described in claim 3 or 4, it is characterized in that: one end of worm shaft (7) is arranged on the worm shaft attachment face (11) of side by nut rotation, after the other end of described worm shaft (7) stretches out the worm shaft attachment face (11) of opposite side, be connected with a crank (8).
6. two limb suspender as claimed in claim 5, it is characterized in that: also comprise the axle sleeve (9) be sleeved on described worm shaft (7), described axle sleeve (9) is arranged on the both sides of described worm screw (6) respectively, one end of described axle sleeve (9) contacts with the helical tooth of worm screw (6), and the other end is resisted against the inner of described worm shaft attachment face (11).
7. two limb suspender as claimed in claim 1.It is characterized in that: also comprise the reinforced rib (12) being located at described hoist frame (1) top, (12) offer mounting hole to described reinforced rib, and described mounting hole is built with suspension ring (13).
8. a combined sling, it is characterized in that: described combined sling is made up of two two limb suspenders as described in any one of claim 1-7, described in one, one end of two limb suspender lifting chain (3) is connected with the top of described in another pair of limb suspender hoist frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610045075.0A CN105480847A (en) | 2016-01-22 | 2016-01-22 | Double-limb lifting sling and combined lifting sling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610045075.0A CN105480847A (en) | 2016-01-22 | 2016-01-22 | Double-limb lifting sling and combined lifting sling |
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| Publication Number | Publication Date |
|---|---|
| CN105480847A true CN105480847A (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610045075.0A Pending CN105480847A (en) | 2016-01-22 | 2016-01-22 | Double-limb lifting sling and combined lifting sling |
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| CN (1) | CN105480847A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107458615A (en) * | 2017-09-15 | 2017-12-12 | 广东工业大学 | A kind of UAV flight's device |
| CN107601337A (en) * | 2017-09-15 | 2018-01-19 | 慈溪捷豹起重机械有限公司 | A kind of worm geared chain block |
| CN107986155A (en) * | 2018-01-25 | 2018-05-04 | 辽宁工程技术大学 | For the vertically arranged self closing mechanism of heavier work pieces and application method |
| CN109015574A (en) * | 2017-06-09 | 2018-12-18 | 上海梅山钢铁股份有限公司 | Adjustable hanging ring storing unit |
| CN110790126A (en) * | 2019-11-08 | 2020-02-14 | 北京轩宇智能科技有限公司 | Lifting appliance and lifting mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3709548A (en) * | 1971-08-06 | 1973-01-09 | Caldwell Co Inc | Leveling sling |
| JPH0667475U (en) * | 1993-03-09 | 1994-09-22 | 株式会社金澤製作所 | Hanging equipment |
| CN2651221Y (en) * | 2003-08-20 | 2004-10-27 | 程文运 | Flexible connecting main ring for hanging rigging tool |
| CN201367302Y (en) * | 2009-03-12 | 2009-12-23 | 高进贤 | Electric turnover clamp |
| CN102030256A (en) * | 2009-09-29 | 2011-04-27 | 上海锡华机械工程有限公司 | Flexible chain in hanging tool |
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2016
- 2016-01-22 CN CN201610045075.0A patent/CN105480847A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3709548A (en) * | 1971-08-06 | 1973-01-09 | Caldwell Co Inc | Leveling sling |
| JPH0667475U (en) * | 1993-03-09 | 1994-09-22 | 株式会社金澤製作所 | Hanging equipment |
| CN2651221Y (en) * | 2003-08-20 | 2004-10-27 | 程文运 | Flexible connecting main ring for hanging rigging tool |
| CN201367302Y (en) * | 2009-03-12 | 2009-12-23 | 高进贤 | Electric turnover clamp |
| CN102030256A (en) * | 2009-09-29 | 2011-04-27 | 上海锡华机械工程有限公司 | Flexible chain in hanging tool |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109015574A (en) * | 2017-06-09 | 2018-12-18 | 上海梅山钢铁股份有限公司 | Adjustable hanging ring storing unit |
| CN109015574B (en) * | 2017-06-09 | 2021-07-09 | 上海梅山钢铁股份有限公司 | Adjustable rings strorage device |
| CN107458615A (en) * | 2017-09-15 | 2017-12-12 | 广东工业大学 | A kind of UAV flight's device |
| CN107601337A (en) * | 2017-09-15 | 2018-01-19 | 慈溪捷豹起重机械有限公司 | A kind of worm geared chain block |
| CN107458615B (en) * | 2017-09-15 | 2023-03-21 | 广东工业大学 | Unmanned aerial vehicle carrying device |
| CN107986155A (en) * | 2018-01-25 | 2018-05-04 | 辽宁工程技术大学 | For the vertically arranged self closing mechanism of heavier work pieces and application method |
| CN107986155B (en) * | 2018-01-25 | 2023-10-27 | 辽宁工程技术大学 | Self-closing mechanism for vertical installation of heavier workpieces and use method |
| CN110790126A (en) * | 2019-11-08 | 2020-02-14 | 北京轩宇智能科技有限公司 | Lifting appliance and lifting mechanism |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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Application publication date: 20160413 |