CN214653006U

CN214653006U - Hook assembly with pulley block and operation machine

Info

Publication number: CN214653006U
Application number: CN202120554517.0U
Authority: CN
Inventors: 李向东; 石何斌; 丁良
Original assignee: Sany America Inc
Current assignee: Zhejiang Sany Equipment Co Ltd; Sany America Inc
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-11-09
Anticipated expiration: 2031-03-17

Abstract

The utility model provides a hook assembly with a pulley block and an operation machine, relating to the field of operation machines, wherein the hook assembly with the pulley block comprises a hook, at least two groups of movable pulley blocks and at least two groups of static pulley blocks, the movable pulley blocks are arranged on the hook at intervals, the movable pulley blocks comprise two movable pulleys arranged at intervals, and the movable pulleys are in running fit with the hook; the static pulley groups are arranged on the suspension arm at intervals and correspond to the movable pulley groups one by one; the static pulley block is connected with the movable pulley block through a steel wire rope, the static pulley block comprises two static pulleys arranged at intervals, the static pulleys are in running fit with the suspension arm, and the axes of the static pulleys are vertical to the axes of the corresponding movable pulleys. Through setting up two sets of movable pulley group and two sets of stationary pulley group at intervals respectively to the axis of stationary pulley is perpendicular with the axis of the movable pulley that corresponds, makes the distance between two sets of movable pulley groups on the lifting hook be a lot of bigger than traditional lifting hook's interval, avoids the lifting hook to take place to beat and changes, improves the security of lifting hook.

Description

Hook assembly with pulley block and operation machine

Technical Field

The utility model relates to an operation machinery especially relates to a hook assembly and operation machinery with assembly pulley.

Background

When the crane hook is hoisted by using a steel wire rope under a small multiplying power, the traditional pulley block arrangement mode has the following defects: 1. considering the factor of a rope inlet angle (GB-T3811 allowable value is 5 degrees), the distance M between the lifting limit position of the lifting hook and the arm head cannot be too small, and the maximum lifting height is influenced; 2. the distance L between the movable pulleys on the lifting hook is too small, and the lifting hook is easy to rotate when the number of the pulleys is small.

SUMMERY OF THE UTILITY MODEL

The utility model provides a hook assembly and operation machinery with assembly pulley for solve current lifting hook and beat the great problem of distance between the extreme position that changes and the lifting hook promotes easily and the arm head.

The utility model provides a hook assembly with assembly pulley, hook assembly with assembly pulley includes:

a hook;

the movable pulley sets are arranged on the lifting hook at intervals, each movable pulley set comprises two movable pulleys arranged at intervals, and the movable pulleys are in rotating fit with the lifting hook;

the static pulley blocks are arranged on the suspension arm at intervals and correspond to the movable pulley blocks one by one; the static pulley block is connected with the movable pulley block through a steel wire rope and comprises two static pulleys arranged at intervals, the static pulleys are in running fit with the suspension arm, and the axes of the static pulleys are perpendicular to the axes of the corresponding movable pulleys.

According to the utility model provides a pair of hook assembly with assembly pulley, with a set of two distance between the quiet pulley equals to correspond the diameter of movable pulley.

According to the utility model provides a pair of hook assembly with assembly pulley, with a set of two distance between the movable pulley equals to correspond the diameter of quiet pulley.

According to the utility model provides a pair of hook assembly with assembly pulley, the running block still includes mounting bracket and first pivot, the mounting bracket with the lifting hook is connected, first pivot with the mounting bracket rotates to be connected, two install in moving pulley one-to-one ground in the both ends of first pivot.

According to the utility model provides a pair of lifting hook device with assembly pulley, the mounting bracket include two set up respectively in the connecting plate of lifting hook both sides, two the one end of connecting plate with the lifting hook is connected, the other end with first pivot swivelling joint.

According to the utility model provides a pair of hook assembly with assembly pulley, two the one end of connecting plate with the lifting hook rotates to be connected.

According to the utility model provides a pair of hook assembly with assembly pulley still includes at least one second pivot, the second pivot with the davit rotates to be connected, quiet assembly pulley set up in corresponding the second pivot, the quiet pulley of quiet assembly pulley is rotationally overlapped and is located the correspondence the second pivot.

According to the utility model provides a pair of hook assembly with assembly pulley, wire rope's stiff end is fixed in the davit or the lifting hook.

The utility model also provides an operation machine, including the automobile body with set up in davit on the automobile body, still include as above the hook assembly who has the assembly pulley, the hook assembly's that has the assembly pulley quiet pulley group interval set up in on the davit.

According to the utility model provides a pair of operation machinery, operation machinery is the crane.

The utility model provides a hook assembly with assembly pulley is through setting up two sets of running block and two sets of quiet assembly pulley interval respectively to the axis of quiet pulley is perpendicular with the axis of the running block that corresponds, makes the distance between two sets of running block on the lifting hook more than the interval of traditional lifting hook, avoids the lifting hook to take place to beat and changes, improves the security of lifting hook.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic front view of a hook device with a pulley block according to the present invention;

fig. 2 is a schematic perspective view of a hook device with a pulley block according to the present invention;

fig. 3 is a schematic side view of the hook device with a pulley block according to the present invention;

fig. 4 is a schematic perspective view of a hook device with a pulley block when a steel wire rope is threaded according to a single hoisting rope with 6 multiplying power;

fig. 5 is a schematic perspective view of the hook device with a pulley block when the steel wire rope is threaded according to the 4-magnification single hoisting rope.

Reference numerals:

100. a hook; 110. a movable pulley; 120. a stationary sheave; 130. a first rotating shaft; 140. a connecting plate; 150. a second rotating shaft; 160. a suspension arm; 170. a steel cord.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are 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 efforts belong to the protection scope of the present invention.

In the existing hook device, the distance between the steel wire rope and the steel wire rope is small due to the small distance between the movable pulley blocks, and the hook is easy to rotate; meanwhile, as the rope inlet angle of the steel wire rope is large, the steel wire rope and the pulley are seriously abraded, and the service life is influenced.

The following describes the hook device with a pulley block and the working machine according to the present invention with reference to fig. 1 to 5.

Fig. 1 illustrates a schematic view of a main view structure of a hook apparatus with a pulley block provided in the present invention, and fig. 2 illustrates a schematic view of a three-dimensional structure of the hook apparatus with the pulley block provided in the present invention, as shown in fig. 1 and fig. 2, the hook apparatus with the pulley block comprises a hook 100, at least two sets of movable pulley blocks and at least two sets of static pulley blocks, the movable pulley blocks are arranged at intervals on the hook 100, the movable pulley blocks comprise two movable pulleys 110 arranged at intervals, and the movable pulleys 110 are rotatably matched with the hook 100; the static pulley sets are arranged on the suspension arm 160 at intervals and correspond to the movable pulley sets one by one; the static pulley block is connected with the movable pulley block through a steel wire rope 170, the static pulley block comprises two static pulleys 120 arranged at intervals, the static pulleys 120 are in rotating fit with the suspension arm 160, and the axes of the static pulleys 120 are perpendicular to the axes of the corresponding movable pulleys 110. The utility model provides a hook assembly with assembly pulley is through setting up two sets of running block and two sets of quiet assembly pulleys interval respectively to the axis of quiet pulley 120 is perpendicular with the axis of the running block 110 that corresponds, makes distance L2 between two sets of running block on lifting hook 100 be a lot of more than traditional lifting hook 100's interval L, avoids lifting hook 100 to take place to beat and changes, improves lifting hook 100's security.

According to the embodiment of the present invention, as shown in fig. 2, the distance L1 between two fixed pulleys 120 of the same group is equal to the diameter D1 of the corresponding movable pulley 110, so that the steel cable 170 between the movable pulley block and the fixed pulley block is in a vertical state, the rope entrance angle of the steel cable 170 is always 0 degree, the distance M1 between the arm head and the hook 100 can be unlimited and can be smaller, and a higher hoisting height can be realized under the condition that the height of the arm head is the same; meanwhile, as the rope inlet angle of the steel wire rope 170 is 0 degree, the abrasion of the steel wire rope 170 and the pulley is reduced, and the service life is longer.

According to the embodiment of the present invention, fig. 3 illustrates the side view structure diagram of the hook device with pulley block provided by the present invention, as shown in fig. 3, the distance between two movable pulleys 110 of the same set is equal to the diameter of the corresponding fixed pulley 120, so as to reduce the wear of the steel wire rope 170 and the pulley and prolong the service life.

According to the utility model discloses an embodiment, movable pulley block still includes mounting bracket and first pivot 130, and the mounting bracket is connected with lifting hook 100, and first pivot 130 rotates with the mounting bracket to be connected, two movable pulley 110 one-to-one ground install in the both ends of first pivot 130. The axis of the first rotating shaft 130 is collinear with the axis of the movable pulley 110, so that the axis of the first rotating shaft 130 is perpendicular to the axis of the corresponding stationary pulley 120, which can ensure that the rope entry angle of the steel wire rope 170 is 0 DEG, and reduce the abrasion of the steel wire rope 170 and the pulleys.

According to the utility model discloses an embodiment, the mounting bracket includes that two set up respectively in the connecting plate 140 of lifting hook 100 both sides, and the one end of two connecting plates 140 is connected with lifting hook 100, and the other end rotates with first pivot 130 to be connected.

According to the utility model discloses an embodiment, the one end of two connecting plates 140 is rotated with lifting hook 100 and is connected, is provided with the round pin axle in this embodiment on the lifting hook 100, the round pin axle with connecting plate 140's one end normal running fit to realize connecting plate 140 and lifting hook 100 and rotate and be connected. Of course, the connection plate 140 may be fixedly connected to the hook 100, such as by welding or by integrally forming the connection plate 140 with the hook 100.

According to the utility model discloses an embodiment, the hook assembly with assembly pulley still includes at least one second pivot 150, and second pivot 150 rotates with davit 160 to be connected, and quiet assembly pulley sets up in corresponding second pivot 150, and the quiet pulley 120 of quiet assembly pulley rotationally overlaps and locates corresponding second pivot 150. Of course, two second rotating shafts 150 may also be disposed on the boom 160, the axes of the two second rotating shafts 150 are the same straight line, and the two groups of stationary pulley sets are disposed on the two second rotating shafts 150 in a one-to-one correspondence manner.

According to the embodiment of the utility model, fig. 4 illustrates the utility model provides a wire rope has the hook assembly's of assembly pulley when reeving according to single 6 multiplying powers of lifting rope spatial structure sketch map, fig. 5 illustrates the utility model provides a wire rope has the hook assembly's of assembly pulley spatial structure sketch map when reeving according to single 4 multiplying powers of lifting rope. The fixed end of the wire rope 170 is fixed to the boom 160 or the hook 100, and the fixed end of the wire rope 170 is fixed to the boom 160 or the hook 100 by bolts, so that the wire rope 170 can be conveniently replaced. It should be noted here that there are various winding ways of the steel wire rope 170, as shown in fig. 2, the rope can be threaded by double hoisting ropes with 8-magnification; as shown in fig. 4, the rope can be threaded by a single lifting rope with 6 multiplying factors; as shown in fig. 5, single lift cord 4-rate reeving is also possible. The specific winding manner of the wire rope 170 may be determined according to the suspended load weight and the installation manner of the movable pulley block and the stationary pulley block. Of course, the number of the fixed sheave 120 and the movable sheave 110 is not limited to this, and may be determined based on the suspended load weight.

According to the utility model discloses an embodiment, as shown in fig. 1 and fig. 2, the hook assembly with assembly pulley includes lifting hook 100, two sets of movable pulley group, two sets of quiet assembly pulleys and second pivot 150, two sets of movable pulley group intervals set up in lifting hook 100, movable pulley group includes movable pulley 110 that two intervals set up, mounting bracket and first pivot 130, the mounting bracket includes two connecting plates 140 that set up respectively in lifting hook 100 both sides, the one end of two connecting plates 140 is connected with lifting hook 100, the other end rotates with first pivot 130 to be connected, two movable pulley 110 install in the both ends of first pivot 130 one-to-one ground. The second rotating shaft 150 is rotatably connected with the suspension arm 160, and the two groups of static pulley blocks are correspondingly arranged at two ends of the second rotating shaft 150 one by one and correspond to the positions of the movable pulley blocks one by one. The static pulley group comprises two static pulleys 120 arranged at intervals, the static pulleys 120 are rotatably sleeved on the second rotating shaft 150, and the axes of the static pulleys 120 are perpendicular to the axes of the corresponding movable pulleys 110. The stationary pulley block is connected with the movable pulley block through a steel wire rope 170, and the fixed end of the steel wire rope 170 is fixed on the suspension arm 160 or the hook 100. In order to reduce the rope entrance angle of the wire rope 170, the distance between two fixed pulleys 120 of the same group is equal to the diameter of the corresponding movable pulley 110, and the distance between two movable pulleys 110 of the same group is equal to the diameter of the corresponding fixed pulley 120.

The utility model also provides an operation machine, include the automobile body and set up davit 160 on the automobile body, still include any one of above-mentioned embodiment hook assembly with the assembly pulley, hook assembly's quiet pulley group interval with the assembly pulley sets up on davit 160.

According to the utility model discloses an embodiment, the operation machinery is the crane, and the type of operation machinery is not restricted to the crane certainly, still can be for tower crane or other lifting device.

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 it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A hook assembly with a pulley block, comprising:

a hook;

2. The lifting hook device with the pulley block of claim 1, wherein the distance between two of the static pulleys of the same set is equal to the diameter of the corresponding movable pulley.

3. The lifting hook device with the set of pulleys of claim 1, wherein the distance between two movable pulleys of the same set is equal to the diameter of the corresponding stationary pulley.

4. The lifting hook device with the pulley block as claimed in any one of claims 1 to 3, wherein the movable pulley block further comprises a mounting bracket and a first rotating shaft, the mounting bracket is connected to the lifting hook, the first rotating shaft is rotatably connected to the mounting bracket, and two movable pulleys are mounted at two ends of the first rotating shaft in a one-to-one correspondence manner.

5. The lifting hook device with the pulley block as claimed in claim 4, wherein the mounting bracket comprises two connecting plates respectively disposed at two sides of the lifting hook, one end of each of the two connecting plates is connected to the lifting hook, and the other end is rotatably connected to the first pivot.

6. The lifting hook assembly with the pulley block of claim 5, wherein one end of the two connecting plates is rotatably connected to the lifting hook.

7. The lifting hook device with the pulley block as claimed in any one of claims 1 to 3, further comprising at least one second rotating shaft, wherein the second rotating shaft is rotatably connected with the boom, the stationary pulley block is disposed on the corresponding second rotating shaft, and the stationary pulley of the stationary pulley block is rotatably sleeved on the corresponding second rotating shaft.

8. The lifting hook device with the pulley block as claimed in claim 7, wherein the fixed end of the wire rope is fixed to the boom or the lifting hook.

9. A working machine, comprising a vehicle body and a boom arranged on the vehicle body, characterized by further comprising the hook device with the pulley block of any one of claims 1 to 8, wherein the fixed pulley set of the hook device with the pulley block is arranged on the boom at intervals.

10. The work machine of claim 9, wherein the work machine is a crane.