CN202609769U - Torque release device and wire rope connecting structure for crane - Google Patents
Torque release device and wire rope connecting structure for crane Download PDFInfo
- Publication number
- CN202609769U CN202609769U CN 201220167583 CN201220167583U CN202609769U CN 202609769 U CN202609769 U CN 202609769U CN 201220167583 CN201220167583 CN 201220167583 CN 201220167583 U CN201220167583 U CN 201220167583U CN 202609769 U CN202609769 U CN 202609769U
- Authority
- CN
- China
- Prior art keywords
- anticreep spare
- male part
- joint
- moment
- screw
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a torque release device and a wire rope connecting structure for a crane, relates to the technical field of engineering machinery and solves the technical problem that failure in torque release from a wire rope causes spinning of a hook and a lifting rope in the prior art. The torque release device comprises a first joint, a second joint and a friction reduction structure. A rotor-like protrusion is fixed on the first joint. A socket is arranged on the second joint, and the protrusion is inlaid into the socket. A first lock part is fixed at a position of the outer peripheral surface of the protrusion, which is far away from an opening of the socket. A second lock part is fixed at a position of the inner peripheral surface of the socket, which is far away from the bottom surface of the socket. The friction reduction structure is disposed between the first lock part and the second lock part. The wire rope connecting structure for the crane comprises the torque release device, a wire rope, a boom and a hook. The torque release device is capable of releasing torque of the wire rope connected with the torque release device.
Description
Technical field
The utility model relates to technical field of engineering machinery, the steel rope connection structure that is used for hoisting crane that is specifically related to a kind of moment of torsion release gear and this moment of torsion release gear is set.
Background technology
Crawler crane is a kind of truss-like jib structure hoisting crane that adopts the crawler travel chassis.Usually all can use the steel rope connection structure that suspension hook and crane arm are linked together in the crawler crane, because crane arm can sling suspension hook come then and raise through steel rope, so this steel rope also is called as hoist rope (abbreviation raising line).
At present, hoist rope generally adopts and hands over winding method to be made.In the prior art, when erecting crane raising line can between a plurality of assembly pulleys, wear around, raising line between assembly pulley, wear always exist around the back either large or smallly one with raising line around to opposite moment of torsion.
When the crane arm that is connected with suspension hook through steel rope is constantly raised, pass the constantly increase of raising line vertical component that assembly pulley is guided winch into.Along with weight hoists, steel rope can constantly shrink and the interior pulley of extruding assembly pulley.The torsional interaction that this will inevitably aggravate raising line, make steel rope can produce with its around to opposite rotation trend.Because a single head of raising line always is fixed on suspension hook or the crane arm, so the moment of torsion that steel rope produces always can't be eliminated.When moment of torsion ran up to a certain degree, moment of torsion can cause the phenomenon of the common rotation of suspension hook and raising line, and this phenomenon also is called as the phenomenon of spinning, and the particular location of the weight that this type of phenomenon of spinning can cause lifting on suspension hook and the suspension hook is difficult to effective control.
The utility model content
The purpose of the utility model is the steel rope connection structure that is used for hoisting crane that proposes a kind of moment of torsion release gear and this moment of torsion release gear is set; Solve prior art and existed the moment of torsion on the steel rope to discharge, caused the technical matters of the easy phenomenon of spinning of suspension hook and raising line.
For realizing above-mentioned purpose, the utility model provides following technical scheme:
The moment of torsion release gear that the utility model provides comprises first joint, second joint and friction reducing structure, wherein:
Be fixed with the male part that is the swivel shape on said first joint, said second joint is provided with inner fovea part, and said male part is embedded in the said inner fovea part;
The partial fixing that deviates from said inner fovea part opening part on the said male part circumferential exterior surface has the first anticreep spare, and the partial fixing that deviates from said inner fovea part bottom surface on the said inner fovea part circumferential inner surface has the second anticreep spare;
The said first anticreep spare protrudes the circumferential exterior surface of said male part; The said second anticreep spare protrudes the circumferential inner surface of said inner fovea part; Said friction reducing structure is arranged between said first anticreep spare and the said second anticreep spare, and said friction reducing structure can reduce the said second anticreep spare and/or said inner fovea part rotates the friction force that produces around the circumferential direction of said male part with respect to said first anticreep spare and/or said male part.
Preferably, said friction reducing structure is a bearing, wherein:
Said bearing comprise first end cap, second end cap and be arranged at said first end cap and said second end cap between rolling body;
Said first end cap of said bearing and said second end cap all are socketed in the form of a ring and all on the said male part between said first anticreep spare and the said second anticreep spare;
Said first end cap or said second end cap one of them and the said first anticreep spare connect or are fastened to each other, and said first end cap or said second end cap wherein another and the said second anticreep spare connect or be fastened to each other.
Preferably, said bearing is a ball-bearing casing.
Preferably, said male part is cylindric, and the said first anticreep spare is round and it is socketed on the said male part, and is threaded between the inside face of the said first anticreep spare and the said male part.
Preferably; At least be provided with one first screw on the said male part; The said first anticreep spare is provided with and the same number of first through hole of said first screw, run through said first through hole and first stop screw that is threaded with said first screw said first anticreep spare and said male part is fastened to each other.
Preferably; The said second anticreep spare is round and it is sheathed on the said male part; The said second anticreep spare can rotate around the circumferential direction of said male part with respect to said male part, is threaded between the outside face of the said second anticreep spare and the inside face of said inner fovea part.
Preferably; Said second joint is provided with at least one second through hole; The said second anticreep spare is provided with second screw identical with said number of through-holes, run through said second through hole and second stop screw that is threaded with said second screw said second joint and the said second anticreep spare is fastened to each other.
Preferably; Said second screw is a through hole; Also be provided with lock hole on the said male part, run through said second screw and be embedded in the said lock hole and and said second screw, said lock hole between all form the pin that removably connects said male part and the said second anticreep spare locked mutually.
Preferably, said lock hole is a screw, the threaded pin of said pin for being threaded with said lock hole.
Preferably, also be provided with at least one lubricated through hole on said second joint, said lubricated through hole is positioned at port on the inside face of said inner fovea part towards the said rolling body of said bearing.
The steel rope connection structure that is used for hoisting crane that the utility model provides comprises moment of torsion release gear, steel rope, crane arm and suspension hook that the arbitrary technical scheme of the utility model is provided, wherein:
Said first joint is the ears jointing, and the ears portion of said ears jointing captives joint with said crane arm or said suspension hook, and the said male part in the said moment of torsion release gear is fixed in an end that deviates from said ears portion on the said ears jointing;
Said second joint is the monaural jointing; The monaural portion of said monaural jointing captives joint with the noose on the said cable wire end, and the said inner fovea part in the said moment of torsion release gear is arranged at an end that deviates from said monaural portion on the said monaural jointing.
Preferably, said hoisting crane is a crawler crane.
Based on the arbitrary technical scheme in the technique scheme, the utility model embodiment can produce following technique effect at least:
Because in the moment of torsion release gear that the utility model provides; The first anticreep spare is provided with the friction reducing structure between the two with the second anticreep spare; The friction reducing structure can reduce the second anticreep spare and/or inner fovea part rotates the friction force that produces around the circumferential direction of male part with respect to the first anticreep spare and/or male part; So when first joint (can for ears jointing and monaural jointing one of them) is connected with suspension hook; Second joint (can for ears jointing and monaural jointing wherein another) is when being connected with crane arm; Moment of torsion on the steel rope can discharge through first joint and relatively rotating of second joint in real time; Because second joint can discharge the moment of torsion that accumulates on the steel rope through the mode of rotating around the circumferential direction of the male part of first joint; Just can avoid thus on the steel rope moment of torsion accumulation too much and cause the phenomenon of spinning, and then also solved prior art and exist the moment of torsion on the steel rope to discharge, cause the technical matters of the easy phenomenon of spinning of suspension hook and raising line.
Description of drawings
Accompanying drawing described herein is used to provide the further understanding to the utility model, constitutes the application's a part, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Each main parts size of the moment of torsion release gear that Fig. 1 provides for the utility model embodiment is assembled into the perspective view of the assembling process of complete moment of torsion release gear;
Fig. 2 is the analyse and observe enlarged diagram of complete moment of torsion release gear shown in Figure 1 along the A-A line;
Fig. 3 is the analyse and observe enlarged diagram of complete moment of torsion release gear shown in Figure 1 along the B-B line;
The cross-sectional schematic of the assembling process of the moment of torsion release gear that Fig. 4 provides for the utility model embodiment;
The scheme drawing of the spatial structure when the moment of torsion release gear that Fig. 5 provides for the utility model embodiment is connected with steel rope.
The specific embodiment
Through accompanying drawing Fig. 1～Fig. 5 and the mode of enumerating some optional embodiment of the utility model, the technical scheme of the utility model is done further detailed description below.Need to prove: any technical characterictic in the present embodiment, any technical scheme all are the technical characterictic of plurality of optional or in the optional technical scheme one or more; For describe succinct need in the presents can't exhaustive the utility model all alternative technical characterictics and alternative technical scheme; The embodiment that also is not easy to each technical characterictic stresses that all it is one of optional numerous embodiments; So those skilled in the art should know: the protection domain that any technical characterictic in the present embodiment and any technical scheme all do not limit the utility model, the protection domain of the utility model should comprise that those skilled in the art do not pay the thinkable any alternate embodiments of creative work.
The steel rope connection structure that is used for hoisting crane that the utility model embodiment provides a kind of moment of torsion release gear of easy release moment of torsion and this moment of torsion release gear is set.
Like Fig. 1～shown in Figure 5, the moment of torsion release gear that the utility model embodiment is provided comprises first joint 1 as shown in Figure 1, second joint 2 and friction reducing structure (being ball-bearing casing among the figure) 3, wherein:
Be fixed with on first joint 1 and be swivel shape (being preferably cylindric) and be provided with inner fovea part (in this example for counterbore shape) 21 as 1 with male part 11, the second joints 2 shown in Figure 2, male part 11 is embedded in the inner fovea part 21.
The partial fixing that deviates from inner fovea part 21 opening parts on male part 11 circumferential exterior surface has the first anticreep spare 10 as shown in Figure 2, and the partial fixing that deviates from inner fovea part 21 bottom surfaces on inner fovea part 21 circumferential inner surface has the second anticreep spare 20.
The circumferential exterior surface of the first anticreep spare, 10 protrusion male part 11, the circumferential inner surface of the second anticreep spare, 20 protrusion inner fovea parts 21, the circumferential direction of the circumferential direction of male part 11 and inner fovea part 21 parallels in this example.
Disclosed or the parts fastened to each other or the framing member that relate in the presents; Except that other has statement; Fixing all be appreciated that for: can fix (for example using bolt or screw to connect) with dismantling; Be appreciated that also to be non-removable fixing (for example rivet, weld) that certainly, parts fastened to each other or framing member also are appreciated that the different component parts for integral structure (for example use foundry technique is integrally formed to create).
Bearing comprise first end cap 31, second end cap 32 and be arranged at first end cap 31 and second end cap 32 between rolling body (being ball in this example) 33.
The first anticreep spare 10 and the second anticreep spare 20 clamp first end cap 31 and second end cap 32 of bearing; Like this; Both relatively rotate of the first anticreep spare 10 and the second anticreep spare 20; Just transform for first end cap 31 and second end cap 32 slide with respect to rolling body 33, can be known by the bearing self characteristics: being provided with of bearing can reduce both frictions when relatively rotating of the first anticreep spare 10 and the second anticreep spare 20 greatly.
Certainly, select for use bearing to be merely the optimal technical scheme of the friction reducing structure 3 that the utility model provides in this example, the structure that also can use other is to replace bearing.It is emphasized that:
The graphite circle that use has a self-lubricating function with the technical scheme that replaces bearing or directly in Fig. 2, between the first anticreep spare 10 and the second anticreep spare 20 ball or roller are set also within the protection domain of the utility model.
At least be provided with one first screw 111 in the present embodiment on the male part 11 as shown in Figure 3; The first anticreep spare 10 is provided with and first screw, 111 the same number of first through holes 110, run through first through hole 110 and first stop screw 112 that is threaded with first screw 111 the first anticreep spare 10 is fastened to each other with male part 11.
The second anticreep spare 20 as shown in Figure 1 is round and it is sheathed on the male part 11 in the present embodiment, is threaded between the inside face of the outside face of the second anticreep spare 20 and inner fovea part 21.(outside face of the second anticreep spare 20 is provided with trapezoidal outside thread in this example; The inside face of inner fovea part 21 is provided with the trapezoidal internal thread that cooperates with this outside thread) the screw connection structure here also has the advantage of easy accessibility, compact conformation, and Acme thread has the big advantage of bearing capacity.Simultaneously, owing to the second anticreep spare 20 is socketed on the male part 11, so the second anticreep spare 20 can rotate around the circumferential direction of male part 11 with respect to male part 11.
Be through hole like Fig. 3 and second screw 222 shown in Figure 4 in the present embodiment; Also be provided with lock hole 113 on the male part 11, run through second screw 222 and be embedded in the lock hole 113 and with second screw 222 and lock hole 113 between all form and removably connect (in this example for being threaded) pin 4 male part 11 and the second anticreep spare 20 are locked mutually.
Lock hole 113, second screw 222 as shown in Figure 4 are with the effect of the structure that removably connects that pin 4 forms: cover connects second joint 2 on the second anticreep spare 20; And when the circumferential direction of male part 11 is rotated second joint 2; This structure that removably connects can lock the second anticreep spare 20, and then can make second joint 2 form firm being threaded with the second anticreep spare 20.After treating second joint 2 and the second anticreep spare 20 forming firm being threaded; Can use spanner that pin 4 is taken out in second screw 222 and lock hole 113; The second anticreep spare 20 still can be rotated with respect to male part 11 around the circumferential direction of male part 11; Then, just second stop screw 202 as shown in Figure 3 can be installed in second through hole 220 and second screw 222.
Lock hole 113 is preferably screw in the present embodiment, and pin 4 is preferably the threaded pin that is threaded with lock hole 113.In this structure, can form between threaded pin and the lock hole 113 and be threaded, so the structure that removably connects that constitutes can repeated disassembled and assembled, connection structure is also more firm, tight simultaneously.
Also be provided with at least one lubricated through hole 5 as shown in Figure 4 in the present embodiment on second joint 2, lubricated through hole 5 is positioned at port on the inside face of inner fovea part 21 towards the rolling body 33 of bearing.Lubricated through hole 5 be arranged so that the lubricated more convenient of bearing, help to keep the good rotation alerting ability of bearing, and then the service life that can improve bearing.
For when not using lubricated through hole 5, extraneous dust or sewage can not infiltrate in the lubricated through hole 5, and the sealing screw as shown in Figure 4 51 that is threaded with the inside face of lubricated through hole 5 can also be set in this example.Like this, can when needs inject lubricating oil, unscrew, take out sealing screw 51, annotate the sealing screw 51 of screwing on again after the lubricating oil.
The steel rope connection structure that is used for hoisting crane as shown in Figure 5, that the utility model embodiment provides, comprise that the arbitrary technical scheme of above-mentioned the utility model provides like Fig. 1～moment of torsion release gear shown in Figure 5, steel rope 6, crane arm and suspension hook, wherein:
First joint 1 is the ears jointing; The ears portion of ears jointing captives joint with crane arm or suspension hook (not shown), and male part 11 (it is identical with the axial direction of steel rope that male part 11 is preferably axial direction) as depicted in figs. 1 and 2 in the moment of torsion release gear is fixed in an end that deviates from ears portion on the ears jointing.
Second joint 2 is the monaural jointing; Noose 7 captive joints on the monaural portion of monaural jointing and steel rope 6 fag ends (in this example for using bearing pin to be connected), the inner fovea part 21 in the moment of torsion release gear is arranged at an end that deviates from monaural portion on the monaural jointing.
Moment of torsion in the said structure on the steel rope 6 can discharge through first joint 1 and second the relatively rotating of joint 2 in real time; Because second joint 2 can discharge the moment of torsion on the steel rope 6 through the mode of rotating around the circumferential direction of the male part 11 of first joint 1, just can avoid thus on the steel rope 6 the moment of torsion accumulation too much and cause the phenomenon of spinning.
Certainly, in the said structure as first joint 1 of Fig. 1～shown in Figure 5 also can with second joint, 2 transpositions.The moment of torsion release gear that the arbitrary technical scheme of the utility model provides also can be applied on other connection structures in the hoisting crane so that be applied to outside the hoisting crane Other Engineering mechanically.
Should be noted that at last: above embodiment only in order to the explanation the utility model technical scheme but not to its restriction; Although with reference to preferred embodiment the utility model has been carried out detailed explanation, the those of ordinary skill in affiliated field is to be understood that: still can make amendment to the specific embodiment of the utility model perhaps is equal to replacement to the part technical characterictic; And not breaking away from the spirit of the utility model technical scheme, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (10)
1. a moment of torsion release gear is characterized in that, comprises first joint, second joint and friction reducing structure, wherein:
Be fixed with the male part that is the swivel shape on said first joint, said second joint is provided with inner fovea part, and said male part is embedded in the said inner fovea part;
The partial fixing that deviates from said inner fovea part opening part on the said male part circumferential exterior surface has the first anticreep spare, and the partial fixing that deviates from said inner fovea part bottom surface on the said inner fovea part circumferential inner surface has the second anticreep spare;
The said first anticreep spare protrudes the circumferential exterior surface of said male part; The said second anticreep spare protrudes the circumferential inner surface of said inner fovea part; Said friction reducing structure is arranged between said first anticreep spare and the said second anticreep spare, and said friction reducing structure can reduce the said second anticreep spare and/or said inner fovea part rotates the friction force that produces around the circumferential direction of said male part with respect to said first anticreep spare and/or said male part.
2. moment of torsion release gear according to claim 1 is characterized in that, said friction reducing structure is a bearing, wherein:
Said bearing comprise first end cap, second end cap and be arranged at said first end cap and said second end cap between rolling body;
Said first end cap of said bearing and said second end cap all are socketed in the form of a ring and all on the said male part between said first anticreep spare and the said second anticreep spare;
Said first end cap or said second end cap one of them and the said first anticreep spare connect or are fastened to each other, and said first end cap or said second end cap wherein another and the said second anticreep spare connect or be fastened to each other.
3. moment of torsion release gear according to claim 2; It is characterized in that said bearing is a ball-bearing casing, said male part is cylindric; The said first anticreep spare is round and it is socketed on the said male part, and is threaded between the inside face of the said first anticreep spare and the said male part.
4. moment of torsion release gear according to claim 3; It is characterized in that; At least be provided with one first screw on the said male part; The said first anticreep spare is provided with and the same number of first through hole of said first screw, run through said first through hole and first stop screw that is threaded with said first screw said first anticreep spare and said male part is fastened to each other.
5. according to claim 2 or 3 or 4 described moment of torsion release gears; It is characterized in that; The said second anticreep spare is round and it is sheathed on the said male part; The said second anticreep spare can rotate around the circumferential direction of said male part with respect to said male part, is threaded between the outside face of the said second anticreep spare and the inside face of said inner fovea part.
6. moment of torsion release gear according to claim 5; It is characterized in that; Said second joint is provided with at least one second through hole; The said second anticreep spare is provided with second screw identical with said number of through-holes, run through said second through hole and second stop screw that is threaded with said second screw said second joint and the said second anticreep spare is fastened to each other.
7. moment of torsion release gear according to claim 6; It is characterized in that; Said second screw is a through hole; Also be provided with lock hole on the said male part, run through said second screw and be embedded in the said lock hole and and said second screw, said lock hole between all form the pin that removably connects said male part and the said second anticreep spare locked mutually.
8. moment of torsion release gear according to claim 7 is characterized in that, said lock hole is a screw, the threaded pin of said pin for being threaded with said lock hole.
9. according to claim 2 or 3 or 4 described moment of torsion release gears; It is characterized in that; Also be provided with at least one lubricated through hole on said second joint, said lubricated through hole is positioned at port on the inside face of said inner fovea part towards the said rolling body of said bearing.
10. a steel rope connection structure that is used for hoisting crane is characterized in that, comprises claim 1-9 any described moment of torsion release gear, steel rope, crane arm and a suspension hook, wherein:
Said first joint is the ears jointing, and the ears portion of said ears jointing captives joint with said crane arm or said suspension hook, and the said male part in the said moment of torsion release gear is fixed in an end that deviates from said ears portion on the said ears jointing;
Said second joint is the monaural jointing; The monaural portion of said monaural jointing captives joint with the noose on the said cable wire end, and the said inner fovea part in the said moment of torsion release gear is arranged at an end that deviates from said monaural portion on the said monaural jointing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220167583 CN202609769U (en) | 2012-04-19 | 2012-04-19 | Torque release device and wire rope connecting structure for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220167583 CN202609769U (en) | 2012-04-19 | 2012-04-19 | Torque release device and wire rope connecting structure for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202609769U true CN202609769U (en) | 2012-12-19 |
Family
ID=47343484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220167583 Withdrawn - After Issue CN202609769U (en) | 2012-04-19 | 2012-04-19 | Torque release device and wire rope connecting structure for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202609769U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103373665A (en) * | 2012-04-19 | 2013-10-30 | 徐工集团工程机械股份有限公司 | Torque release device and steel wire rope connection structure for crane |
| CN104760896A (en) * | 2015-04-14 | 2015-07-08 | 刘青建 | Crane extension arm rotation device |
| CN105293333A (en) * | 2015-10-29 | 2016-02-03 | 莱芜钢铁集团有限公司 | Wire rope connection device and method for replacing crane wire rope |
| CN106185539A (en) * | 2016-08-31 | 2016-12-07 | 艾瑞斯股份有限公司 | Compensated chain distortion release device |
-
2012
- 2012-04-19 CN CN 201220167583 patent/CN202609769U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103373665A (en) * | 2012-04-19 | 2013-10-30 | 徐工集团工程机械股份有限公司 | Torque release device and steel wire rope connection structure for crane |
| CN103373665B (en) * | 2012-04-19 | 2015-04-29 | 徐工集团工程机械股份有限公司 | Torque release device and steel wire rope connection structure for crane |
| CN104760896A (en) * | 2015-04-14 | 2015-07-08 | 刘青建 | Crane extension arm rotation device |
| CN105293333A (en) * | 2015-10-29 | 2016-02-03 | 莱芜钢铁集团有限公司 | Wire rope connection device and method for replacing crane wire rope |
| CN105293333B (en) * | 2015-10-29 | 2018-04-03 | 莱芜钢铁集团有限公司 | A kind of wire-rope connecting device and the method for changing driving steel wire rope |
| CN106185539A (en) * | 2016-08-31 | 2016-12-07 | 艾瑞斯股份有限公司 | Compensated chain distortion release device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202609769U (en) | Torque release device and wire rope connecting structure for crane | |
| CN103373665B (en) | Torque release device and steel wire rope connection structure for crane | |
| CN203807011U (en) | Steel wire rope anti-twisting device and tower crane | |
| CA2541142A1 (en) | Tubing rotator | |
| WO2014019312A1 (en) | Pin, rotational connection structure, jib connection structure, and engineering machine | |
| CN102297241A (en) | Anti-torsion connection device of steel wire rope | |
| CN203229338U (en) | Simple auxiliary lifting device | |
| CN203500222U (en) | Pin shaft lubricating system, folding arm support system and concrete pumping equipment | |
| CN201376853Y (en) | Telescopic fold hinge of caterpillar hoist | |
| CN203130907U (en) | Lantern ring and inhaul cable structure | |
| CN107226414B (en) | A kind of wirerope twisting resistance release device of adaptive damping | |
| CN106078177B (en) | The fixation extrusion pad handling facilities of extruder | |
| CN2193468Y (en) | Wire rope spiral connector | |
| CN205117976U (en) | It is articulated from lubricating structure and have its pump truck | |
| CN211688034U (en) | Winding rope pressing device and engineering mechanical device | |
| CN103089917A (en) | Lantern ring and inhaul cable structure | |
| CN212334350U (en) | Multifunctional rotary lifting appliance | |
| CN221051424U (en) | Gravity rotary hanging ring of movable arm tower crane | |
| CN213017637U (en) | Reel speed reducer for auto-crane with lubricated effectual | |
| CN217478882U (en) | Movable lifting lug | |
| CN216965493U (en) | Stranded rope lubricating and cleaning assembly for mining hoisting winch | |
| CN215590885U (en) | Caterpillar track unit, caterpillar track and engineering machinery | |
| CN217207308U (en) | Excavator bucket rod lubricating structure | |
| CN210423596U (en) | Planetary gear reduction box structure | |
| CN202609830U (en) | Crane and mounting hinge point rotating device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121219 Effective date of abandoning: 20150429 |