CN219117028U

CN219117028U - Crane jib

Info

Publication number: CN219117028U
Application number: CN202223107130.4U
Authority: CN
Inventors: 王建省; 张贺栋; 李岳峰
Original assignee: Zhonglide Intelligent Crane Jiangsu Co ltd
Current assignee: Zhonglide Intelligent Crane Jiangsu Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-06-02
Anticipated expiration: 2032-11-23

Abstract

The utility model relates to a suspension arm for a crane, which comprises a fixed base, wherein a suspension rope mechanism and a suspension arm are arranged on the outer wall of the top of the fixed base, a hook is fixedly connected to the suspension rope mechanism, one end of the suspension arm, which is far away from the fixed base, is fixedly connected with a mounting block, the suspension rope mechanism is matched with the mounting block, a transmission assembly is arranged on the mounting block, a positioning sleeve is sleeved on the outer wall of the suspension rope mechanism, a connecting assembly and a bearing assembly are arranged on the positioning sleeve, and the positioning sleeve is connected with the transmission assembly sequentially through the bearing assembly and the connecting assembly. According to the utility model, the locating sleeve is arranged and can slide up and down along the outer wall of the lifting rope in the lifting rope mechanism under the combined action of the transmission component and the connection component, so that the limiting effect on the lifting rope is achieved, the shaking of the lifting rope is greatly reduced, and the stability of the lifting arm during working is further improved.

Description

Crane jib

Technical Field

The utility model relates to the technical field of cranes, in particular to a suspension arm for a crane.

Background

The crane is a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects in a certain range, and has the working characteristics of intermittent motion, namely corresponding mechanisms of taking materials, transporting, unloading and the like in one working cycle work alternately, and the crane is increasingly widely developed and used in the market;

the suspension arm is an important component part of the crane, and is also an important bearing part of the lifting rope mechanism, and when the existing crane suspension arm is used, the suspension arm is driven to swing due to swinging of the lifting rope below, so that the stability of the crane is poor during working, and improvement is needed.

Disclosure of Invention

The utility model provides a suspension arm for a crane, which solves the technical problem that the suspension arm is driven to shake due to shaking of a suspension rope in the prior art.

The scheme for solving the technical problems is as follows: including unable adjustment base, unable adjustment base's top outer wall installs lifting rope mechanism and davit, and fixedly connected with couple on the lifting rope mechanism, the one end fixedly connected with installation piece that unable adjustment base was kept away from to the davit, and lifting rope mechanism and installation piece looks adaptation, be provided with drive assembly on the installation piece, the outer wall of lifting rope mechanism has cup jointed the locating sleeve, be provided with coupling assembling and bearing assembly on the locating sleeve, the locating sleeve loops through bearing assembly, coupling assembling and drive assembly and is connected.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the transmission assembly comprises a motor and a transmission rod, the motor is fixedly connected with the outer wall of the installation block, the outer walls of the two sides of the installation block are respectively and rotatably connected with a take-up pulley, the take-up pulley is fixedly connected with the transmission rod, and the take-up pulley is fixedly connected with one end of an output shaft of the motor.

Further, the bearing assembly comprises a plurality of bearing rods, the plurality of bearing rods are fixedly connected with the outer wall of the positioning sleeve, the bearing rods are symmetrically distributed, a plurality of bearing blocks are sleeved on the outer wall of the bearing rods, and one end, far away from the positioning sleeve, of the bearing rods is provided with a locking sleeve through threaded connection.

Further, the outer wall fixedly connected with dog of bearing rod.

Further, coupling assembling includes a plurality of adapter sleeves, the outer wall of bearing rod passes through screw and adapter sleeve fixed connection, one side outer wall fixedly connected with go-between that the bearing rod was kept away from to the adapter sleeve, and all fixedly connected with spacing rope on two go-between that lie in the top position, spacing rope keeps away from the one end and take-up pulley fixed connection of go-between.

Further, two connecting rings located below are fixedly connected with branch ropes, and one end of each branch rope, which is far away from the two connecting rings below, is fixedly connected with the limiting rope.

The beneficial effects of the utility model are as follows: the utility model provides a suspension arm for a crane, which has the following advantages:

1. according to the utility model, the positioning sleeve is arranged and can slide up and down along the outer wall of the lifting rope in the lifting rope mechanism under the combined action of the transmission component and the connection component, so that the limiting effect on the lifting rope is achieved, the shaking of the lifting rope is greatly reduced, and the stability of the lifting arm in working is further improved;

2. according to the utility model, the bearing component is arranged, so that when the hoisted goods are lighter or the hoisting angle is poorer, the bearing block can be properly added on the bearing rod, the limiting effect of the locating sleeve on the lifting rope is further improved, and the effect of reducing the shaking of the lifting rope is achieved.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings. Specific embodiments of the present utility model are given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic view of the general structure of a boom for a crane according to the present utility model;

fig. 2 is a schematic diagram of a transmission rod of a boom for a crane according to the present utility model;

FIG. 3 is a schematic view of a load-bearing bar of a boom for a crane according to the present utility model;

fig. 4 is a schematic diagram of a small positioning sleeve of a boom for a crane according to the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a fixed base; 2. a lifting rope mechanism; 3. a suspension arm; 4. a mounting block; 5. a motor; 6. a positioning sleeve; 601. a small positioning sleeve; 7. a limit rope; 701. rope separation; 8. a hook; 9. a transmission rod; 10. a wire winding wheel; 11. a stop block; 12. a bearing block; 13. a locking sleeve; 14. connecting sleeves; 15. a connecting ring; 16. a load-bearing rod; 17. and (5) connecting ropes.

Detailed Description

The principles and features of the present utility model are described below with reference to fig. 1-4, the examples being provided for illustration only and not for limitation of the scope of the utility model. The utility model is more particularly described by way of example in the following paragraphs with reference to the drawings. Advantages and features of the utility model will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Example 1

As shown in fig. 1-3, the utility model provides a suspension arm for a crane, which comprises a fixed base 1, wherein a lifting rope mechanism 2 and a suspension arm 3 are arranged on the outer wall of the top of the fixed base 1, a hook 8 is fixedly connected to the lifting rope mechanism 2, and the lifting rope mechanism 2 consists of a lifting rope, a pulley block, a servo motor and the like; one end of the suspension arm 3 far away from the fixed base 1 is fixedly connected with a mounting block 4, the mounting block 4 is U-shaped, and a part of pulley block in the suspension rope mechanism 2 is arranged on the mounting block 4, and a transmission assembly is arranged on the mounting block 4 and provides power through the transmission assembly; the outer wall of the lifting rope positioned below the suspension arm 3 is sleeved with a positioning sleeve 6, the positioning sleeve 6 is made of stainless steel, a connecting component and a bearing component are arranged on the positioning sleeve 6, the positioning sleeve 6 is connected with a transmission component through the bearing component and the connecting component, the positioning sleeve 6 can slide up and down along the outer wall of the lifting rope under the action of the transmission component, and further the lifting rope can be wrapped at a place with severe shaking according to the requirement, so that the shaking reducing effect is started, and the suspension arm 3 is more stable in the working process;

the bearing assembly comprises a plurality of symmetrically distributed bearing rods 16, the plurality of bearing rods 16 are fixedly connected with the outer wall of the positioning sleeve 6, a plurality of bearing blocks 12 are sleeved outside the bearing rods 16, and the number of the bearing blocks 12 on the two symmetrically distributed bearing rods 16 is required to be kept consistent, so that the balance of the positioning sleeve 6 is ensured; one end of the bearing rod 16, which is far away from the positioning sleeve 6, is connected with a locking sleeve 13 through threads, the outer wall of the bearing rod 16 is fixedly connected with a stop block 11, when the bearing block 12 is installed, the bearing block 12 needs to be pushed to a position which is jointed with the stop block 11, the joint state between the bearing blocks 12 is ensured, and then the locking sleeve 13 is rotated clockwise, so that the joint state between the locking sleeve 13 and the outermost bearing block 12 is maintained;

the transmission assembly consists of a motor 5, a transmission rod 9 and two winding wheels 10 which are symmetrically distributed, the two winding wheels 10 are respectively arranged on the outer walls of the two sides of the installation block 4 through bearings, the two winding wheels 10 are fixedly connected with the transmission rod 9, one winding wheel 10 is fixedly connected with one end of an output shaft of the motor 5, and the motor 5 is fixedly connected with the outer wall of the installation block 4; under the combined action of the motor 5 and the transmission rod 9, the two take-up wheels 10 can rotate at a constant speed;

the connecting assembly comprises a plurality of connecting sleeves 14, the connecting sleeves 14 are fixedly arranged at the outermost ends of the bearing rods 16 through screws, connecting rings 15 are fixedly connected to the outer wall of one side, far away from the bearing rods 16, of the connecting sleeves 14, limiting ropes 7 are fixedly connected to the two connecting rings 15 positioned above, and one ends, far away from the connecting rings 15, of the limiting ropes 7 are fixedly connected with the take-up pulley 10; the two take-up wheels 10 rotate under the action of the motor 5 and the transmission rod 9, and the lifting and the lowering of the positioning sleeve 6 on the lifting rope are realized through the take-up (forward rotation) and pay-off (reverse rotation) of the take-up wheels 10; the two connecting rings 15 at the lower position are fixedly connected with a parting rope 701, one end of the parting rope 701, which is far away from the two connecting rings 15 at the lower position, is fixedly connected with the limiting rope 7, and the parting rope 701 enables the stress of the positioning sleeve 6 to be more uniform, so that the up-and-down movement smoothness of the positioning sleeve 6 is ensured.

Example two

On the basis of the first embodiment, another form of the positioning sleeve 6 is proposed;

referring to fig. 4, the positioning sleeve 6 is uniformly divided into a plurality of small positioning sleeves 601, and the small positioning sleeves 6 are connected through a connecting rope 17, so that the mass of the positioning sleeve 6 is reduced, and the load of the suspension arm 3 is reduced; when the lengths of the suspension arm 3 and the suspension ropes are high, the component ropes 701 and the bearing components are additionally arranged at intervals of a plurality of small positioning sleeves 601, so that the small positioning sleeves 601 are not easy to shake along with the shaking of the suspension ropes.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way; those skilled in the art will readily appreciate that the present utility model may be implemented as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present utility model are possible in light of the above teachings without departing from the scope of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the present utility model.

Claims

1. The utility model provides a davit for hoist, includes unable adjustment base (1), its characterized in that, lifting rope mechanism (2) and davit (3) are installed to the top outer wall of unable adjustment base (1), and fixedly connected with couple (8) on lifting rope mechanism (2), one end fixedly connected with installation piece (4) of unable adjustment base (1) are kept away from to davit (3), and lifting rope mechanism (2) and installation piece (4) looks adaptation, be provided with drive assembly on installation piece (4), locating sleeve (6) have been cup jointed to the outer wall of lifting rope mechanism (2), be provided with coupling assembling and bearing assembly on locating sleeve (6), locating sleeve (6) loop through bearing assembly, coupling assembling and drive assembly and are connected.

2. The crane boom according to claim 1, wherein the transmission assembly comprises a motor (5) and a transmission rod (9), the motor (5) is fixedly connected with the outer wall of the installation block (4), the outer walls of the two sides of the installation block (4) are rotatably connected with take-up wheels (10), two take-up wheels (10) are fixedly connected with the transmission rod (9), and one take-up wheel (10) is fixedly connected with one end of an output shaft of the motor (5).

3. The crane boom according to claim 1, wherein the bearing assembly comprises a plurality of bearing rods (16), the plurality of bearing rods (16) are fixedly connected with the outer wall of the positioning sleeve (6), the bearing rods (16) are symmetrically distributed, the outer wall of the bearing rod (16) is sleeved with a plurality of bearing blocks (12), and one end, far away from the positioning sleeve (6), of the bearing rod (16) is connected with a locking sleeve (13) through threads.

4. A boom for a crane according to claim 3, characterized in that the outer wall of the bearing bar (16) is fixedly connected with a stop (11).

5. A crane boom according to claim 3, characterized in that the connecting assembly comprises a plurality of connecting sleeves (14), the outer wall of the bearing rod (16) is fixedly connected with the connecting sleeves (14) through screws, the outer wall of one side of the connecting sleeve (14) far away from the bearing rod (16) is fixedly connected with connecting rings (15), two connecting rings (15) located above are fixedly connected with limiting ropes (7), and one end of each limiting rope (7) far away from the connecting ring (15) is fixedly connected with the take-up pulley (10).

6. Boom for a crane according to claim 5, characterized in that the two connecting rings (15) located at the lower position are fixedly connected with a parting rope (701), and that the end of the parting rope (701) remote from the two connecting rings (15) located at the lower position is fixedly connected with a limiting rope (7).