CN111153342A - Swing pulley device and crane - Google Patents
Swing pulley device and crane Download PDFInfo
- Publication number
- CN111153342A CN111153342A CN202010067717.3A CN202010067717A CN111153342A CN 111153342 A CN111153342 A CN 111153342A CN 202010067717 A CN202010067717 A CN 202010067717A CN 111153342 A CN111153342 A CN 111153342A
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- China
- Prior art keywords
- pulley
- support
- bracket
- fixed support
- pulley assembly
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- 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.)
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Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/02—Hoists or accessories for hoists
- B66D2700/026—Pulleys, sheaves, pulley blocks or their mounting
- B66D2700/028—Pulley blocks with multiple sheaves
Abstract
The invention provides a swing pulley device and a crane, which relate to the technical field of engineering machinery and comprise a fixed support, a pulley assembly and a limiting part; the wobbling of loose pulley assembly installs on fixing support, and the both sides that just are located loose pulley assembly on fixing support all are provided with spacing portion, and spacing portion is used for restricting loose pulley assembly's amplitude of oscillation to prevent loose pulley assembly from empting. Because but the wobbling of loose pulley assembly installs on fixing support, be provided with spacing portion on fixing support, spacing portion is located loose pulley assembly's both sides, and spacing portion can restrict loose pulley assembly's swing range, and loose pulley assembly can carry out certain degree of swing along with wire rope's deflection on the one hand, and on the other hand has avoided again because loose pulley assembly's swing range is too big and has emptyd, has improved the safety in utilization of pulley.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a swing pulley device and a crane.
Background
Various types of pulleys, such as a fixed pulley, a movable pulley, a pulley block, a guide pulley and the like, are arranged on the crane and are combined to achieve the purpose of changing the movement direction of the steel wire rope or saving labor.
The crane is also provided with a swingable pulley, and the pulley can swing to one side under the traction action of the steel wire rope, so that the steel wire rope is not easy to fall out of the pulley when the steel wire rope is deviated relative to the pulley, and the hoisting safety is improved.
However, the swing freedom degree of the existing anti-rolling swing pulley is often larger, and the pulley even topples over when the steel wire rope is seriously deviated, so that the use safety of the pulley is influenced.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a swing pulley device to solve the technical problem that the swing pulley is easy to topple and the use safety of the pulley is influenced in the prior art.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the invention provides a swing pulley device which comprises a fixed support, a pulley assembly and a limiting part;
the pulley assembly can be installed on the fixed support in a swinging mode, the fixed support is provided with limiting parts which are located on two sides of the pulley assembly, and the limiting parts are used for limiting the swinging amplitude of the pulley assembly so as to prevent the pulley assembly from falling.
Furthermore, the limiting part is movably connected with the fixed support so as to adjust the distance between the limiting part and the pulley component.
Further, the limiting part comprises a limiting bolt;
the limiting bolt is in threaded connection with the fixed support.
Furthermore, the limiting part also comprises a locking part;
the retaining member respectively with spacing bolt with fixing support connects, the retaining member be used for with spacing bolt locking is in fixing support is last.
Further, the pulley assembly comprises a first pulley and a second pulley;
the first pulley is arranged on the fixed support through a first support in a swinging mode, and the second pulley is arranged on the fixed support through a second support in a swinging mode;
the two sides of the first support and the two sides of the second support are both provided with the limiting parts.
Furthermore, a first supporting part, a second supporting part and a third supporting part are arranged on the fixed support;
one end of the first support is rotatably connected with the first support part, and the other end of the first support is rotatably connected with the second support part;
one end of the second support is rotatably connected with one end, far away from the first support, of the second support, and the other end of the second support is rotatably connected with the third support.
Further, the pulley assembly further comprises an elastic member;
the elastic piece is respectively connected with the pulley assembly and the fixed support, and the elastic piece is used for enabling the pulley assembly to have the movement trend of returning to the original position.
Further, the elastic member comprises a first tension spring and a second tension spring;
one end of the first tension spring is connected with the first support, and the other end of the first tension spring is connected with the fixed support; one end of the second tension spring is connected with the second support, and the other end of the second tension spring is connected with the fixed support.
Further, the pulley assembly further comprises a first wear block and a second wear block;
the first antifriction block is arranged at the position, close to the position where the steel wire rope winds into the first pulley, of the first support, and the second antifriction block is arranged at the position, close to the position where the steel wire rope winds out of the second pulley, of the second support.
The invention provides a crane which comprises the swing pulley device.
By combining the technical scheme, the invention has the beneficial effects that:
the invention provides a swing pulley device which comprises a fixed support, a pulley assembly and a limiting part; the wobbling of loose pulley assembly installs on fixing support, and the both sides that just are located loose pulley assembly on fixing support all are provided with spacing portion, and spacing portion is used for restricting loose pulley assembly's amplitude of oscillation to prevent loose pulley assembly from empting.
Because but the wobbling of loose pulley assembly installs on fixing support, be provided with spacing portion on fixing support, spacing portion is located loose pulley assembly's both sides, and spacing portion can restrict loose pulley assembly's swing range, and loose pulley assembly can carry out certain degree of swing along with wire rope's deflection on the one hand, and on the other hand has avoided again because loose pulley assembly's swing range is too big and has emptyd, has improved the safety in utilization of pulley.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a swing pulley apparatus according to an embodiment of the present invention at a first viewing angle;
fig. 2 is a schematic structural diagram of a swing pulley apparatus according to an embodiment of the present invention at a second viewing angle;
fig. 3 is a sectional view of a swing pulley apparatus according to an embodiment of the present invention.
Icon: 100-fixed support; 110-a first support; 120-a second support; 130-a third support; 200-a sheave assembly; 210-a first pulley; 220-a second pulley; 230-a first support; 240-a second support; 300-a limiting part; 310-limit bolt; 320-a locking member; 400-an elastic member; 410-a first tension spring; 420-a second tension spring; 500-a first wear block; 510-a second wear block; 600-steel wire rope.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the present embodiment provides a swing pulley apparatus, which includes a fixed support 100, a pulley assembly 200, and a limiting portion 300; the pulley assembly 200 is installed on the fixing support 100 in a swinging manner, the fixing support 100 and the two sides of the pulley assembly 200 are provided with limiting parts 300, and the limiting parts 300 are used for limiting the swinging amplitude of the pulley assembly 200 so as to prevent the pulley assembly 200 from toppling over.
Specifically, the fixed support 100 is a fixed seat of the swing pulley device, and on one hand, the fixed seat serves as an installation carrier of the pulley assembly 200, and on the other hand, the swing pulley device can be installed on the crane through the fixed support 100; the pulley assembly 200 may be hinged on the fixed support 100 or mounted on the fixed support 100 through a rotating shaft such that the pulley assembly 200 can swing with respect to the fixed support 100; spacing 300 can set up to limit structure such as stopper and gag lever post, and spacing 300 fixed connection is on fixing support 100, and loose pulley assembly 200 swings between the spacing 300 of both sides, and loose pulley assembly 200 is at the wobbling extreme position and spacing 300 butt.
According to the swing pulley device provided by the invention, the pulley assembly 200 is arranged on the fixed support 100 in a swing manner, the limit part 300 is arranged on the fixed support 100, the limit part 300 is positioned at two sides of the pulley assembly 200, and the limit part 300 can limit the swing amplitude of the pulley assembly 200, so that on one hand, the pulley assembly 200 can swing to a certain degree along with the deviation of the steel wire rope 600, on the other hand, the pulley assembly 200 is prevented from toppling over due to overlarge swing amplitude, and the use safety of the pulley is improved.
On the basis of the above embodiments, further, the limiting portion 300 of the swing pulley apparatus provided in this embodiment is movably connected to the fixed support 100, so as to adjust the distance between the limiting portion 300 and the pulley assembly 200.
Specifically, the limiting part 300 can be slidably connected with the fixing support 100 through a sliding rail, so that the distance between the limiting part 300 and the pulley can be adjusted, the swing amplitude of the pulley assembly 200 can be adjusted, the limiting part 300 can be locked on the sliding rail through a bolt after the adjustment is finished, and the limiting part 300 is prevented from moving relative to the fixing support 100.
Further, the limiting part 300 includes a limiting bolt 310; the limit bolt 310 is threadedly coupled to the fixing mount 100.
Specifically, the fixing support 100 is provided with a threaded hole matched with the limiting bolt 310, and preferably, an axis of the limiting bolt 310 is located in a horizontal plane, and when the pulley assembly 200 is vertically arranged, the axis of the limiting bolt 310 is vertically arranged with the plane of the pulley assembly 200. The distance from one end of the limit bolt 310 to the pulley assembly 200 can be flexibly changed by changing the depth of the limit bolt 310 screwed into the threaded hole, that is, the swing amplitude of the pulley assembly 200 is changed.
Further, the position-limiting part 300 further comprises a locking member 320; the locker 320 is coupled to the check bolt 310 and the fixing support 100, respectively, and the locker 320 serves to lock the check bolt 310 to the fixing support 100.
Specifically, the locking member 320 is preferably configured as a locking nut, the locking nut is sleeved on the limit bolt 310, and the locking nut is in threaded fit with the limit bolt 310; one or two locking nuts are arranged, when one locking nut is arranged, the locking nut is sleeved on the limiting bolt 310 and is positioned on one side, close to the pulley assembly 200, of the fixed support 100, and one end of the locking nut is abutted against the fixed support 100 so as to fix the limiting bolt 310 on the fixed support 100; when lock nut sets up to two, two lock nuts all overlap and establish at limit bolt 310 and be located fixing support 100's both sides, two lock nuts respectively with fixing support 100 butt, die on fixing support 100 with limit bolt 310 back of the body through two lock nuts, two lock nuts and single lock nut compare, and the fastening effect to limit bolt 310 is better.
As an alternative embodiment of this embodiment, the locking member 320 is provided as a locking pin having a plurality of through holes uniformly spaced along the length direction of the stopper bolt 310, and two locking pins are engaged with the two through holes to limit the axial movement of the stopper bolt 310.
According to the swing pulley device provided by the embodiment, the limit bolt 310 is in threaded connection with the fixed support 100, so that on one hand, the limit bolt 310 can play a good role in limiting the swing amplitude of the pulley assembly 200, and on the other hand, the distance between the limit bolt 310 and the pulley assembly 200 is conveniently adjusted, namely the swing amplitude of the pulley assembly 200 is conveniently adjusted; in addition, the limiting bolt 310 can be conveniently fastened on the fixed support 100 through the locking member 320, so that the limiting bolt 310 is prevented from moving relative to the fixed support 100, and the stability of the swing amplitude of the pulley assembly 200 is ensured.
On the basis of the above embodiment, further, the pulley assembly 200 in the oscillating pulley device provided by the present embodiment includes a first pulley 210 and a second pulley 220; the first pulley 210 is swingably mounted on the fixed support 100 through the first bracket 230, and the second pulley 220 is swingably mounted on the fixed support 100 through the second bracket 240; both sides of the first bracket 230 and both sides of the second bracket 240 are provided with a stopper 300.
Specifically, the first pulley 210 and the second pulley 220 have the same structure, the first bracket 230 and the second bracket 240 have the same structure, the first pulley 210 and the first bracket 230 are provided with a first rotating shaft, the first pulley 210 can freely rotate around the first rotating shaft relative to the first bracket 230, the second pulley 220 and the second bracket 240 are provided with a second rotating shaft, and the second pulley 220 can freely rotate around the second rotating shaft relative to the second bracket 240; the first bracket 230 drives the first pulley 210 to swing relative to the fixed support 100, and the second bracket 240 drives the second pulley 220 to swing relative to the fixed support 100. The limiting parts 300 at both sides of the first bracket 230 are used for limiting the swing range of the first bracket 230, and the limiting parts 300 at both sides of the second bracket 240 are used for limiting the swing range of the second bracket 240. The side profiles of the first bracket 230 and the second bracket 240 are preferably set to be not less than a quadrant of a circle, so that the first bracket 230 and the second bracket 240 have good wrapping property for the first pulley 210 and the second pulley 220, respectively, and the protection capability for the first pulley 210 and the second pulley 220 is improved.
Further, the fixing support 100 is provided with a first support portion 110, a second support portion 120 and a third support portion 130; one end of the first bracket 230 is rotatably connected to the first support part 110, and the other end is rotatably connected to the second support part 120; one end of the second bracket 240 is rotatably connected to one end of the second supporting portion 120, which is far from the first bracket 230, and the other end of the second bracket 240 is rotatably connected to the third supporting portion 130.
Specifically, as shown in fig. 3, the first support portion 110, the second support portion 120, and the third support portion 130 are preferably all configured as metal support cylinders, the first support portion 110 and the third support portion 130 are fixedly connected to both ends of the fixing support 100 by bolts, and bearings may be disposed between the first bracket 230 and the first support portion 110 and between the second bracket 240 and the third support portion 130, so that the first bracket 230 freely rotates with respect to the first support portion 110, and the second bracket 240 freely rotates with respect to the third support portion 130. The second support 120 is disposed between the first support 110 and the third support 130, the second support 120 is fixedly connected to the fixed support 100, and bearings are disposed between the first bracket 230 and the second support 120 and between the second bracket 240 and the second support 120, so that the first bracket 230 and the second bracket 240 can swing asynchronously with respect to the fixed support 100. The wire rope 600 is wound in from the first pulley 210, then passes through the inside of the second support 120, and finally is wound out from the second pulley 220. Two sides of the first bracket 230 are respectively provided with two limiting parts 300, two sides of the second bracket 240 are also respectively provided with two limiting parts 300, and the number of the limiting parts 300 can be reasonably selected according to the use requirement.
As an alternative embodiment of this embodiment, the second supporting portion 120 is rotatably connected to the fixed support 100, one end of the second supporting portion 120 is fixedly connected to the first bracket 230, and the other end of the second supporting portion 120 is fixedly connected to the second bracket 240. The second support part 120 is fixed to the fixed bracket 100 by a bearing such that the second support part 120 can freely rotate with respect to the fixed bracket 100, and both ends of the second support part 120 are fixed with respect to the first bracket 230 and the second bracket 240, respectively, such that the first bracket 230 and the second bracket 240 synchronously rotate with respect to the fixed bracket 100.
Further, the pulley assembly 200 further includes an elastic member 400; the elastic member 400 is connected to the pulley assembly 200 and the fixing bracket 100, respectively, and the elastic member 400 is used to make the pulley assembly 200 have a tendency to return to its original position.
Specifically, as shown in fig. 2, in a normal state, the steel wire rope 600 drives the pulley assembly 200 to deflect to the left, and the elastic member 400 resets the pulley assembly 200 to the vertical state after the pulling force of the steel wire rope 600 is removed, preferably, the home position of the pulley assembly 200 is the vertical state, and the elastic member 400 is also in the original state when the pulley assembly 200 is in the vertical state, that is, the elastic member 400 is not under the pulling force or the pressure.
Further, the elastic member 400 includes a first tension spring 410 and a second tension spring 420; one end of the first tension spring 410 is connected with the first bracket 230, and the other end is connected with the fixed support 100; one end of the second tension spring 420 is connected to the second bracket 240, and the other end is connected to the fixed bracket 100.
Specifically, a first tension spring 410 and a second tension spring 420 are arranged on the same side of the pulley assembly 200, a first hanging lug is fixedly connected to the first bracket 230, one end of the first tension spring 410 is hung on the first hanging lug, a connecting plate is fixed on the fixed support 100 and corresponds to the other end of the first tension spring 410, a second hanging lug is arranged on the connecting plate, and one end of the first tension spring 410, which is far away from the first hanging lug, is hung on the second hanging lug; the connection structure of the second tension spring 420 with the second bracket 240 and the fixed mount 100 is the same as the connection structure of the first tension spring 410 with the first bracket 230 and the fixed mount 100, and thus, the detailed description thereof is omitted. In a normal state, the steel cable 600 drives the pulley assembly 200 to bias towards a side away from the first tension spring 410 or the second tension spring 420, the first tension spring 410 is used for the first bracket 230 to drive the first pulley 210 to reset, and the second tension spring 420 is used for the second bracket 240 to drive the second pulley 220 to reset.
Further, the sheave assembly 200 also includes a first wear block 500 and a second wear block 510; the first wear reducing block 500 is disposed at a position of the first bracket 230 near the position where the wire rope 600 winds into the first pulley 210, and the second wear reducing block 510 is disposed at a position of the second bracket 240 near the position where the wire rope 600 winds out of the second pulley 220.
Specifically, the first wear reduction block 500 and the second wear reduction block 510 are rubber blocks or wear-resistant plastic blocks, the first wear reduction block 500 is fixed on the first bracket 230 through bolts, and the second wear reduction block 510 is fixed on the second bracket 240 through bolts; the first friction between the first friction reducing block 500 and the first bracket 230 is avoided when the steel wire rope 600 is deviated relative to the first pulley 210, and the second friction reducing block 510 and the second bracket 240 are avoided when the steel wire rope 600 is deviated relative to the second pulley 220, so that the abrasion of the steel wire rope 600 is reduced.
The swing pulley device provided by the embodiment enables the first pulley 210 and the second pulley 220 to have good self-resetting performance by arranging the first tension spring 410 between the first bracket 230 and the fixed support 100 and arranging the second tension spring 420 between the second bracket 240 and the fixed support 100; the first support 230 is provided with the antifriction blocks, and the second support 240 is provided with the second antifriction blocks 510, so that the steel wire rope 600 is prevented from directly rubbing against the first support 230 and the second support 240, the abrasion of the steel wire rope 600 is further reduced, and the service life of the steel wire rope 600 is prolonged.
On the basis of the above embodiments, further, the crane provided in this embodiment includes a swing pulley device. Since the technical effect of the crane provided by the embodiment is the same as that of the swing pulley device provided by the above embodiment, the detailed description is omitted here.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An oscillating pulley device, comprising: the pulley component comprises a fixed support (100), a pulley component (200) and a limiting part (300);
pulley component (200) wobbling install on fixing support (100) fixed support (100) are gone up and be located pulley component (200)'s both sides all are provided with spacing portion (300), spacing portion (300) are used for restricting pulley component (200)'s amplitude of oscillation, in order to prevent pulley component (200) emptys.
2. The oscillating pulley device according to claim 1, characterized in that said limit stop (300) is movably connected to said fixed support (100) to enable adjustment of the distance between said limit stop (300) and said pulley assembly (200).
3. The oscillating pulley device according to claim 2, characterized in that the limiting portion (300) comprises a limiting bolt (310);
the limiting bolt (310) is in threaded connection with the fixed support (100).
4. The oscillating pulley device according to claim 3, characterized in that the limiting portion (300) further comprises a locking member (320);
the retaining member (320) is respectively connected with the limiting bolt (310) and the fixed support (100), and the retaining member (320) is used for locking the limiting bolt (310) on the fixed support (100).
5. The oscillating pulley device according to any of claims 1-4, characterized in that the pulley assembly (200) comprises a first pulley (210) and a second pulley (220);
the first pulley (210) is arranged on the fixed support (100) through a first bracket (230) in a swinging mode, and the second pulley (220) is arranged on the fixed support (100) through a second bracket (240) in a swinging mode;
the limiting parts (300) are arranged on two sides of the first support (230) and two sides of the second support (240).
6. The oscillating pulley device according to claim 5, characterized in that said fixed support (100) is provided with a first support (110), a second support (120) and a third support (130);
one end of the first bracket (230) is rotatably connected with the first supporting part (110), and the other end of the first bracket is rotatably connected with the second supporting part (120);
one end of the second bracket (240) is rotatably connected with one end of the second support part (120) far away from the first bracket (230), and the other end of the second bracket (240) is rotatably connected with the third support part (130).
7. The oscillating pulley device according to claim 6, characterized in that the pulley assembly (200) further comprises an elastic member (400);
the elastic piece (400) is respectively connected with the pulley assembly (200) and the fixed support (100), and the elastic piece (400) is used for enabling the pulley assembly (200) to have a movement trend of returning to the original position.
8. The oscillating pulley device according to claim 7, characterized in that said elastic member (400) comprises a first tension spring (410) and a second tension spring (420);
one end of the first tension spring (410) is connected with the first bracket (230), and the other end of the first tension spring is connected with the fixed support (100); one end of the second tension spring (420) is connected with the second bracket (240), and the other end is connected with the fixed support (100).
9. The oscillating pulley device according to claim 5, characterized in that the pulley assembly (200) further comprises a first wear block (500) and a second wear block (510);
the first abrasion reducing block (500) is arranged at the position, close to the position where the steel wire rope (600) winds into the first pulley (210), of the first support (230), and the second abrasion reducing block (510) is arranged at the position, close to the position where the steel wire rope (600) winds out of the second pulley (220), of the second support (240).
10. A crane, comprising a swinging sheave arrangement as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010067717.3A CN111153342A (en) | 2020-01-20 | 2020-01-20 | Swing pulley device and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010067717.3A CN111153342A (en) | 2020-01-20 | 2020-01-20 | Swing pulley device and crane |
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|---|---|
| CN111153342A true CN111153342A (en) | 2020-05-15 |
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| CN202010067717.3A Pending CN111153342A (en) | 2020-01-20 | 2020-01-20 | Swing pulley device and crane |
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Cited By (2)
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| CN112999570A (en) * | 2021-04-01 | 2021-06-22 | 北京大学 | Rehabilitation equipment for walking rehabilitation and assistance |
| WO2023032068A1 (en) * | 2021-09-01 | 2023-03-09 | 株式会社三井Ｅ＆Ｓマシナリー | Hoisting implement |
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| CN104340904A (en) * | 2014-10-21 | 2015-02-11 | 太重（天津）滨海重型机械有限公司 | Rotatable guide pulley device |
| CN204917793U (en) * | 2015-08-07 | 2015-12-30 | 武汉卡特工业股份有限公司 | A rope guide device for revolving dig rig |
| CN105439006A (en) * | 2015-12-15 | 2016-03-30 | 武汉船用机械有限责任公司 | Hoist cable stabilizing device for crane |
| CN206857955U (en) * | 2017-06-23 | 2018-01-09 | 湖南中铁五新重工有限公司 | Brake type sling upper rack and crane |
| CN107298402A (en) * | 2017-08-24 | 2017-10-27 | 国家海洋局第海洋研究所 | A kind of adaptive assembly pulley of curvature |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112999570A (en) * | 2021-04-01 | 2021-06-22 | 北京大学 | Rehabilitation equipment for walking rehabilitation and assistance |
| CN112999570B (en) * | 2021-04-01 | 2022-06-14 | 北京大学 | Rehabilitation equipment for walking rehabilitation and assistance |
| WO2023032068A1 (en) * | 2021-09-01 | 2023-03-09 | 株式会社三井Ｅ＆Ｓマシナリー | Hoisting implement |
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