CN214742733U

CN214742733U - Pulley assembly and device

Info

Publication number: CN214742733U
Application number: CN202023171265.8U
Authority: CN
Inventors: 龙青云; 李坚; 文红光; 胡伟
Original assignee: Shenzhen OCT Vision Inc
Current assignee: Shenzhen OCT Vision Inc
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-11-16
Anticipated expiration: 2030-12-24

Abstract

The utility model discloses a pulley assembly and a device, wherein, the pulley assembly comprises a base, a pulley and a rope blocking structure, the pulley is rotatably arranged on the base, and the pulley is provided with an annular groove for winding a hanging rope; the rope blocking structure is fixed on the base, and is provided with a plurality of ropes, and is a plurality of the rope blocking structure is arranged along the circumferential direction of the pulley, and the rope blocking structure is uniformly distributed on the pulley and used for limiting the hanging rope in the annular groove. When the last winding of loose pulley assembly was hung the rope, hang the rope and slide in the annular groove, set up a plurality of fender rope structures through the circumferencial direction around the pulley, it is all relatively more stable when sliding along arbitrary direction to make to hang the rope, no matter install loose pulley assembly in what position, stride loose pulley assembly's string rope all is difficult for the slippage.

Description

Pulley assembly and device

Technical Field

The utility model relates to a pulley technical field especially relates to a loose pulley assembly and device.

Background

A pulley is a simple machine consisting of a disc with grooves that can rotate around a central shaft and a flexible cable (rope, tape, cable, chain, etc.) that spans the disc and can rotate around the central shaft. The existing pulleys are attached to the disc by being pulled by a pulling force in the direction of motion during use.

However, the pulleys are used in a plurality of places, the disc may be arranged downwards or upwards, the flexible cable may cross from the top end of the disc or from the side surface of the disc, or may cross from the lower end of the disc, when the pulling force on the flexible cable changes, the flexible cable is easy to break away from the disc, and in addition, the flexible cable is continuously rubbed with the flexible cable in the rotation process of the disc, the flexible cable is easy to shake mutually, and the mutual collision caused by the shaking also increases the risk that the flexible cable breaks away from the disc, so that the flexible cable is easy to generate a phenomenon of 'groove jumping', and then slips from the disc, thereby affecting the normal use of the whole device.

Accordingly, the prior art is yet to be improved and developed.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies of the prior art, the present invention provides a pulley assembly and a device thereof, which aims to solve the problem that the flexible cable of the pulley may slip in different places of use.

The technical scheme of the utility model as follows:

a pulley assembly comprises a base, a pulley and a rope blocking structure, wherein the pulley is rotatably arranged on the base and is provided with an annular groove for winding a hanging rope; the rope blocking structure is fixed on the base, and is provided with a plurality of ropes, and is a plurality of the rope blocking structure is arranged along the circumferential direction of the pulley, and the rope blocking structure is uniformly distributed on the pulley and used for limiting the hanging rope in the annular groove.

The pulley assembly is characterized in that the base comprises a connecting plate and two supporting plates perpendicular to the connecting plate, the two supporting plates are arranged on the connecting plate in parallel, and the pulley and the rope blocking structure are arranged between the two supporting plates; the rope blocking structure can rotate on the supporting plate.

The pulley assembly, wherein the rope stopping structure comprises a fixed connecting rod and a protective sleeve, the fixed connecting rod is connected with the supporting plate, and the protective sleeve is sleeved on the surface of the fixed connecting rod; and, the protective sleeve can rotate on the fixed link.

The pulley assembly is characterized in that the rope blocking structure is an equal-length stud.

The pulley assembly is characterized in that the pulley comprises a shaft rod, a bearing, a rotating wheel and a locking disc, and the shaft rod is clamped on the two supporting plates; the bearing is arranged on the shaft rod and rotates on the shaft rod; the rotating wheel is sleeved on the bearing; the locking disc is fixed on the shaft rod; the locking discs are arranged on two sides of the rotating wheel and are used for limiting the rotating wheel on the bearing.

The pulley assembly is characterized in that the number of the bearings is two, the two bearings are arranged on the shaft rod side by side, and the rotating wheel is sleeved on the two bearings simultaneously.

The pulley assembly is characterized in that a lubricating oil channel is arranged in the shaft rod, an opening at one end of the lubricating oil channel is formed in the side face of the shaft rod, and an opening at the other end of the lubricating oil channel is formed in a position between the two bearings.

The pulley assembly, wherein, the base still includes the reinforcing plate, the reinforcing plate is right angle triangle-shaped board, a right-angle side of reinforcing plate is connected the connecting plate, another right-angle side is connected the backup pad.

The pulley assembly, wherein the rope blocking structure comprises one or more of a plastic rope blocking structure, a rubber rope blocking structure and a metal rope blocking structure.

The application also discloses a device, wherein the pulley assembly is provided with any one of the pulley assemblies.

Compared with the prior art, the embodiment of the utility model provides a have following advantage:

the pulley block of this application can be installed in various positions in the use, the base can be adorned on the wall, subaerial, on the roof and so on the position, hang the top that the rope also can follow the pulley, the pulley is walked around to below or side, but a plurality of fender rope structures that the circumferencial direction around the pulley evenly set up, make and hang the rope no matter pass the pulley from which angle all have the fender rope structure to shelter from in the outside of hanging the rope, when making to hang the rope and remove in the annular groove, keep off the rope structure and constantly with the string rope spacing of jumping in the annular groove, the jump-out of hanging the rope has been avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a pulley assembly of the present invention;

fig. 2 is a front view of the pulley assembly of the present invention;

fig. 3 is a top view of the pulley assembly of the present invention;

fig. 4 is a cross-sectional view along AA' in fig. 3 according to the present invention.

10, a base; 11. a connecting plate; 12. a support plate; 13. a reinforcing plate; 20. a pulley; 21. An annular groove; 22. a shaft lever; 221. a lubricant oil passage; 23. a bearing; 24. a rotating wheel; 25. a locking disc; 30. a rope blocking structure; 31. fixing the connecting rod; 32. and (6) a protective sleeve.

Detailed Description

In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the prior art, the pulley assembly is used as a simple machine for lifting heavy objects and saving labor, has the main functions of pulling loads, changing force application directions, transmitting power and the like, and is wide in application field. The general pulley assembly comprises a support, a rotating shaft fixed on the support and a pulley sleeved on the rotating shaft and capable of rotating, wherein a hanging rope penetrates through a space between the pulley and the support, when the hanging rope is pulled, the hanging rope and the pulley are subjected to rotating friction, the friction force is small, the pulley and the hanging rope are not easily abraded, and the abrasion is smaller compared with the dynamic friction generated by directly penetrating the hanging rope through a supporting structure for traction.

However, the hanging rope is contacted with the side surface of the pulley, the groove on the side surface of the pulley is opened outwards, when the pulley rotates rapidly and the hanging rope moves rapidly, the pulley and the hanging rope are easy to collide with each other, and the hanging rope can slip from the pulley; especially when loose pulley assembly sets up in different positions, do not have limit structure on the current pulley, the loose pulley assembly is placed and is hung the rope and the cooperation position of pulley is different when different positions, probably produces the risk of droing of different degrees.

It should be noted that the hanging rope referred to in the embodiments of the present disclosure is a long rope commonly used for bearing heavy objects, including but not limited to one or more of a steel wire rope, a hemp rope, a fiber rope, and a carbon fiber rope.

Referring to fig. 1 and 4, in an embodiment of the present invention, a pulley assembly is disclosed, wherein the pulley assembly includes a base 10, a pulley 20 and a rope stopping structure 30, the pulley 20 is rotatably mounted on the base 10, and an annular groove 21 for winding a hanging rope is formed on the pulley 20; the rope blocking structure 30 is fixed on the base 10, the rope blocking structure 30 is provided with a plurality of rope blocking structures 30, and the rope blocking structures 30 are uniformly distributed around the pulley 20 in the circumferential direction of the pulley 20 and used for limiting a hanging rope in the annular groove 21.

The pulley assembly of this application can be installed in various positions in the use, base 10 can be adorned on the wall, subaerial, on the roof etc. position, hang the rope and also can walk around pulley 20 from pulley 20's top, below or side, but a plurality of fender rope structures 30 that evenly set up around the circumferencial direction of pulley 20 make the rope of hanging pass pulley 20 no matter from which angle all have fender rope structure 30 to shelter from in the outside of hanging the rope, when making the rope of hanging move in annular groove 21, keep off rope structure 30 and constantly with the rope of hanging of jumping upwards spacing in annular groove 21, avoided the jump out of the rope of hanging.

As shown in fig. 1, as an implementation manner of the present embodiment, it is disclosed that the base 10 includes a connecting plate 11 and two supporting plates 12 disposed perpendicular to the connecting plate 11, the two supporting plates 12 are disposed in parallel on the connecting plate 11, and the pulley 20 and the rope blocking structure 30 are both installed between the two supporting plates 12; the tether structure 30 is rotatable on the support plate 12. The pulley 20 is arranged between the two support plates 12 and fixed stably, and the two support plates 12 can protect the pulley 20 from two sides at the same time, so that sundries are prevented from being drawn into the pulley 20; in addition, the rope blocking structures 30 can limit the hanging rope and are connected with the two support plates 12, the two support plates 12 are connected more tightly through the connection of multiple positions, the mechanical property of the whole structure is more stable, and the risk that the support plates 12 are broken or disassembled is reduced when the pulley 20 or the hanging rope vibrates in the using process of the pulley assembly; specifically, the rope blocking structure 30 is rotatably disposed on the supporting plate 12, as shown in fig. 1 and 2, one implementation of the present embodiment discloses that a through hole (not shown in the drawings) is formed in the supporting plate 12 at a position opposite to the rope blocking structure 30, the through hole is circular, and both ends of the rope blocking structure 30 are respectively inserted into the through holes of the supporting plates 12 at both sides and rotate in the through hole; the rope blocking structure 30 comprises one or more of a plastic rope blocking structure 30, a rubber rope blocking structure 30 and a metal rope blocking structure 30, for example, the rope blocking structure 30 is an isometric stud, the isometric stud is contacted when the rope is hung to shake and bounce, the surface of the isometric stud is rubbed with the hanging rope which moves rapidly, the dynamic friction is converted into rolling friction through the rotation of the isometric stud, the friction between the hanging rope and the isometric stud is greatly reduced, the abrasion of the isometric stud and the hanging rope is reduced, and the service lives of the isometric stud and the hanging rope are prolonged.

Further, as shown in fig. 4, as another implementation manner of the embodiment, it is disclosed that the rope blocking structure 30 includes a fixed link 31 and a protective sleeve 32, the fixed link 31 is connected to the support plate 12, and the protective sleeve 32 is sleeved on a surface of the fixed link 31; also, the protective sleeve 32 may rotate on the fixed link 31. The fixed connecting rod 31 is fixed on the supporting plate 12 and does not rotate on the supporting plate 12, so that long-term friction between the supporting plate 12 and the fixed connecting rod 31 is avoided, and connection looseness between the rope blocking structure 30 and the supporting plate 12 is prevented; the protective sleeve 32 is arranged on the outer side of the fixed connecting rod 31, contacts with the hanging rope through the protective sleeve 32, and reduces friction on the hanging rope through rotation of the protective sleeve 32; in addition, the protective sleeve 32 can be configured as a protective sleeve 32 made of a buffer material, such as a rubber protective sleeve 32, a plastic protective sleeve 32, etc., to prevent the fixed link 31 from being broken due to the impact of the hanging rope; of course, the protective sheath 32 may be a smooth-surfaced metal protective sheath 32, and the metal protective sheath 32 has a hard texture, a smooth surface, less mutual friction with the hanging rope, a long service life, and is not easy to be damaged.

Referring to fig. 3 and 4, as an implementation manner of the present embodiment, it is disclosed that the pulley 20 includes a shaft 22, a bearing 23, a rotating wheel 24, and a locking disc 25, and the shaft 22 is clamped on the two support plates 12; the bearing 23 is arranged on the shaft 22 and rotates on the shaft 22; the rotating wheel 24 is sleeved on the bearing 23; and said locking disc 25 is fixed on said shaft 22; the number of the locking discs 25 is two, and the two locking discs 25 are respectively arranged on two sides of the rotating wheel 24 and used for limiting the rotating wheel 24 on the bearing 23. The friction loss generated on the shaft rod 22 when the rotating wheel 24 rotates is reduced by arranging the bearing 23, so that the flexibility of the rotating wheel 24 is improved, the friction resistance generated when the hanging rope is arranged on the rotating wheel 24 is smaller, and the quick movement of the hanging rope is facilitated; meanwhile, the locking disc 25 is used for fixing the main rotating wheel 24, so that the rotating wheel 24 is prevented from generating lateral displacement in the high-speed rotating process or falling off from the bearing 23, the rotating wheel 24 is prevented from colliding with the supporting plates 12 on two sides, and the stable structure and normal operation of the pulley assembly are maintained.

Further, as an implementation of this embodiment, disclose 22 one end of axostylus axostyle is equipped with the stopper, and the other end is equipped with the screw thread, two all be equipped with the mounting hole in the backup pad 12, pass two mounting holes with 22 threaded one ends of axostylus axostyle, make the stopper butt on the backup pad 12 of one side, then assemble a round nut brake washer and a round nut on axostylus axostyle 22, the round nut spiro union is equipped with on the screwed tip at axostylus axostyle 22, fixes axostylus axostyle 22 through round nut and round nut brake washer, makes 22 fixed stable, prevents to become flexible of axostylus axostyle.

Further, as an implementation manner of the embodiment, it is disclosed that a locking protrusion is arranged on the locking disc 25, and a clamping groove is arranged on the rotating shaft and used for clamping the locking disc 25 with the rotating shaft, so that the locking disc 25 cannot move left and right on the rotating shaft; the side of runner 24 is equipped with the locking hole, and the position that just is equipped with the locking perforation on the locking dish 25 to the locking hole sets up a locking plug-in components in the locking perforation, the locking plug-in components pass the locking perforation and insert the locking downthehole fixed, fixes fixed disk and runner 24 relatively, and runner 24 is firm with the fixed disk's fixed like this, also can not take place relative rotation, is favorable to runner 24 to steadily to last the rotation. And because the locking discs 25 at the two sides are connected with the rotating shaft, the rotating wheel 24 is also limited in the middle of the rotating shaft, and the left and right displacement can not occur.

Referring to fig. 4, as an implementation manner of the present embodiment, it is disclosed that two bearings 23 are provided, two bearings 23 are arranged side by side on the shaft rod 22, and the rotating wheel 24 is simultaneously sleeved on the two bearings 23. Firstly, two rotating shafts are arranged to share the acting force transmitted by the rotating wheel 24 together, so that the pressure damage to the single bearing 23 is reduced; secondly, the runner 24 is sleeved on the bearings 23, and two bearings 23 are arranged to support the runner 24 more stably than one bearing 23 to support the runner 24, so that the risk of inclination or displacement of the runner 24 in the rotating process is reduced.

Specifically, as an implementation manner of the present embodiment, it is disclosed that a lubricating oil channel 221 is disposed in the shaft rod 22, an opening at one end of the lubricating oil channel 221 is disposed on a side surface of the shaft rod 22, and an opening at the other end is disposed at a position between the two bearings 23. Through setting up lubricating oil passageway 221 and directly leading to between two bearings 23, can set up a joint formula pressure and annotate the oil cup at the side of pivot, directly guide into lubricating oil on bearing 23, lubricate the bearing 23 of hiding in runner 24 and locking dish 25, further increase runner 24 pivoted flexibility.

As shown in fig. 1, as an implementation manner of this embodiment, it is disclosed that the base 10 further includes a reinforcing plate 13, the reinforcing plate 13 is a right-angled triangular plate, one right-angled side of the reinforcing plate 13 is connected to the connecting plate 11, and the other right-angled side is connected to the supporting plate 12. Through setting up reinforcing plate 13, the plane at reinforcing plate 13 place and the plane at backup pad 12 place and the plane mutually perpendicular at connecting plate 11 place form stable structure, can be through mould integrated into one piece connecting plate 11, backup pad 12 and reinforcing plate 13, and the overall structure of base 10 is more stable like this, can give the better support of pulley 20.

As another embodiment of the present application, there is also disclosed an apparatus comprising a sheave assembly as described in any of the above.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A sheave assembly, comprising:

a base;

the pulley is rotatably arranged on the base and is provided with an annular groove for winding a hanging rope; and

the rope blocking structure is fixed on the base and provided with a plurality of ropes which are uniformly distributed around the pulleys in the circumferential direction and used for limiting the hanging rope in the annular groove.

2. The sheave assembly of claim 1, wherein the base includes a connecting plate and two support plates disposed perpendicular to the connecting plate, the two support plates being disposed in parallel on the connecting plate, the sheave and the roping arrangement each being mounted between the two support plates; the rope blocking structure can rotate on the supporting plate.

3. The sheave assembly of claim 2, wherein the roping arrangement includes a fixed link coupled to the support plate and a protective sleeve that is fitted over a surface of the fixed link; and, the protective sleeve can rotate on the fixed link.

4. The sheave assembly of claim 2, wherein the chock structure is an equal length stud.

5. The pulley assembly according to claim 2, wherein the pulley comprises:

the shaft levers are clamped on the two supporting plates;

the bearing is arranged on the shaft rod and rotates on the shaft rod;

the rotating wheel is sleeved on the bearing; and

the locking disc is fixed on the shaft lever; the two locking discs are arranged on two sides of the rotating wheel respectively and used for limiting the rotating wheel on the bearing.

6. The pulley assembly according to claim 5, wherein there are two of said bearings, two of said bearings being disposed side by side on said shaft, said wheel being simultaneously received on both of said bearings.

7. The pulley assembly according to claim 6, wherein a lubrication passage is provided in the shaft, the lubrication passage having an opening at one end thereof provided at a side of the shaft and an opening at the other end thereof provided at a position between the two bearings.

8. The sheave assembly of claim 2, wherein the base further comprises a reinforcement plate that is a right triangle, one leg of the reinforcement plate connecting the connecting plate and the other leg connecting the support plate.

9. The sheave assembly of any of claims 1-8, wherein the cord structure comprises one or more of a plastic cord structure, a rubber cord structure, a metal cord structure.

10. An apparatus comprising a sheave assembly as claimed in any one of claims 1 to 9.