CN213569239U - Crane - Google Patents

Abstract

The utility model discloses a crane, the rotatable first gyro wheel and the second gyro wheel of being equipped with of slider, the fixed and other end of one end of first lifting rope winds on first reel, first lifting rope hoist and mount have the lifting hook, first lifting rope draws forth and corresponds respectively around first gyro wheel and second gyro wheel from the lifting hook both ends, when first reel rotates, first reel receive and releases first lifting rope, under the action of gravity of lifting hook and heavy object, length that first lifting rope is located between first gyro wheel and the second gyro wheel shortens correspondingly or becomes long, make first lifting rope drive lifting hook along vertical lift. The suspension arm is obliquely arranged, and the sliding block is slidably arranged on the suspension arm, so that the first roller and the second roller drive the lifting hook to synchronously slide obliquely along with the sliding block, and further, the heavy object can simultaneously move along the transverse direction and the longitudinal direction. Reach the promotion heavy object purpose under the moving direction of heavy object does not change the prerequisite, need not to rely on telescopic davit, the fault rate is lower, and the structure is simpler, so can promote operational reliability and reduce manufacturing cost simultaneously.

Description

Crane

Technical Field

The utility model relates to a lift by crane haulage equipment field, in particular to crane.

Background

The crane is widely applied to occasions such as wharfs, construction sites, workshops and electric power as a common hoisting and carrying machine. The existing crane usually comprises a suspension arm and a lifting hook, in order to enable the suspension arm to drive the lifting hook to move along the transverse direction and the longitudinal direction, the existing suspension arm mostly adopts a telescopic suspension arm, the telescopic suspension arm comprises a plurality of mutually nested supporting sleeves, the environment of the use occasion of the crane is severe, foreign matters such as sand stones are clamped between any two adjacent supporting sleeves, so that the supporting sleeves are extremely easy to wear, the normal stretching of the suspension arm is influenced, the failure rate is relatively high, and the working reliability is low. In addition, the telescopic boom has more related parts, high assembly difficulty and relatively high manufacturing cost.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims to provide a crane, first reel are through receiving and releasing first lifting rope along vertical lifting hook, and the slider drives the lifting hook along horizontal and vertical two directions lifting hook simultaneously when sliding along the davit, makes the heavy object remove along original horizontal two vertical directions, replaces current telescopic davit, and the fault rate is lower, and the structure is simpler, and operational reliability obtains promoting, and manufacturing cost obtains reducing.

The utility model provides a crane, include:

the suspension arm is obliquely arranged;

the sliding block is slidably arranged on the suspension arm and is rotatably provided with a first idler wheel and a second idler wheel;

a first reel fixedly arranged;

one end of the first lifting rope is fixed, the other end of the first lifting rope is wound on the first winding drum, the first lifting rope is hoisted by a lifting hook, and the first lifting rope led out from the two ends of the lifting hook is respectively and correspondingly wound on the first idler wheel and the second idler wheel so that the lifting hook can lift heavy objects along the longitudinal direction.

Preferably, the lifting device further comprises an upper upright post, the upper upright post is hinged with the lifting arm through a rotary fastener, and the rotary fastener is used for locking the upper upright post and the lifting arm when the lifting arm rotates relative to the upper upright post by a preset angle around the rotary fastener.

Preferably, the suspension arm is provided with a sliding support roller, and further comprises a second winding drum fixedly arranged on the upper stand column and a second suspension rope, wherein one end of the second winding drum is wound on the second winding drum, and the other end of the second winding drum is wound on the sliding support roller until the second suspension rope is fixedly connected with the sliding block so as to drive the sliding block to slide along the suspension arm.

Preferably, the lifting device further comprises a counterweight frame which is connected with the upper upright column and used for supporting the counterweight block, and the counterweight frame and the lifting arm are respectively arranged on two sides of the upper upright column.

Preferably, the upper upright post is hinged to the weight frame through a hinge fastener, and the hinge fastener is used for locking the upper upright post and the weight frame when the weight frame rotates relative to the upper upright post by a specified angle around the hinge fastener.

Preferably, first reel is fixed in the counter weight frame, goes up the stand and is equipped with transition support roller, and the davit is equipped with hoist and mount support roller, and transition support roller, hoist and mount support roller, second gyro wheel, lifting hook and first gyro wheel after-fixing in the stand bottom are walked around in proper order to the one end that first reel was kept away from to first lifting rope.

Preferably, the device also comprises a bearing seat provided with a lower upright post, and the upper upright post is rotatably connected with the lower upright post.

Preferably, the bottom of the bearing seat is provided with a walking roller.

Preferably, the bearing seat is fixedly provided with a third winding drum, and a third lifting rope for dragging the bearing seat to move is wound on the third winding drum.

Preferably, the length-adjustable reinforcing ropes are arranged between the upper upright post and the suspension arm and between the upper upright post and the counterweight frame.

For the background art, the utility model discloses the rotatable first gyro wheel and the second gyro wheel of being equipped with of well slider, the fixed and other end of the one end of first lifting rope is around on first reel, first lifting rope hoist and mount have the lifting hook, first lifting rope is drawn forth and is corresponding respectively around first gyro wheel and second gyro wheel from the lifting hook both ends, when first reel rotates, first reel receive and releases first lifting rope, under the action of gravity of lifting hook and heavy object, length that first lifting rope is located between first gyro wheel and the second gyro wheel shortens or becomes long correspondingly, make first lifting rope drive lifting hook along vertical lift, and then make the lifting hook along vertical lifting weight thing. In addition, the davit slope sets up, and the slider slidable is located on the davit, and the rotation setting of first gyro wheel and second gyro wheel can make first gyro wheel and second gyro wheel drive the lifting hook and follow the synchronous inclined sliding of slider, and then makes the lifting hook drive heavy object slope slider, makes the heavy object follow two horizontal and vertical movements simultaneously, reaches the promotion heavy object purpose under the moving direction of heavy object does not change the prerequisite.

The utility model mainly changes the moving direction of the heavy object by the first lifting rope and the sliding block, does not need to depend on the telescopic suspension arm, eliminates the clamping stagnation influence of the suspension arm, and has better working reliability; the structure is simple, the assembly is convenient, and the manufacturing cost is low. Therefore, the utility model provides a crane can promote operational reliability and reduce manufacturing cost simultaneously.

Drawings

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

Fig. 1 is a schematic structural diagram of a crane according to an embodiment of the present invention.

The reference numbers are as follows:

the lifting device comprises a lifting arm 1, a sliding block 2, a first roller 3, a second roller 4, a first winding drum 5, a first lifting rope 6, a lifting hook 7, an upper upright post 8, a sliding support roller 9, a second winding drum 10, a second lifting rope 11, a balancing weight 12, a balancing weight frame 13, a transition support roller 14, a lifting support roller 15, a bearing seat 16, a walking roller 17, a third winding drum 18, a third lifting rope 19, a reinforcing rope 20, a lower upright post 21 and a tensioning transition roller 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings 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 order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a crane according to an embodiment of the present invention.

First, it should be noted that the lateral direction in this specification refers to a direction parallel to the X axis in fig. 1, and the longitudinal direction refers to a direction parallel to the Y axis in fig. 1.

The embodiment of the utility model discloses crane, including davit 1, slider 2, first reel 5 and first lifting rope 6. The suspension arm 1 is obliquely arranged, the sliding block 2 is slidably arranged on the suspension arm 1, so that the sliding block 2 obliquely slides along the suspension arm 1, the oblique movement of the sliding block 2 can be decomposed into movements along the longitudinal direction and the transverse direction respectively, and conditions are provided for lifting heavy objects along the transverse direction and the longitudinal direction.

It should be noted that, the utility model provides a davit 1 is shaft-like structure, can form by the whole casting, is different from current telescopic davit, eliminates telescopic davit because of the trouble that the grit jamming caused, makes the fault rate reduce to some extent, and operational reliability obtains promoting. The utility model discloses well davit 1's simple structure need not to assemble a great variety of spare parts, and the equipment degree of difficulty is less, is favorable to reducing manufacturing cost. Therefore, the utility model provides a crane can promote operational reliability and reduce manufacturing cost simultaneously.

The slider 2 is rotationally provided with a first roller 3 and a second roller 4, and the first roller 3 and the second roller 4 are both arranged on a supporting shaft arranged on the slider 2 through bearings. The first roller 3 and the second roller 4 are fixed pulleys, the outer peripheral surfaces of the first roller and the second roller are respectively provided with a limiting groove for winding the first lifting rope 6, the cross section of the limiting groove can be in a semicircular arc shape, and the first lifting rope 6 is prevented from being separated from the first roller 3 or the second roller 4. The first roller 3 and the second roller 4 are distributed along a straight line in a staggered way. The slide 2 may be a climbing device.

The first reel 5 is fixedly provided to receive and release the first lifting rope 6, and the following description refers to the manner of mounting the first reel 5. The first reel 5 may specifically be a winch.

One end of the first lifting rope 6 is fixed, the other end of the first lifting rope is wound on the first winding drum 5, a lifting hook 7 is arranged on the first lifting rope 6 in a lifting mode, and the lifting hook 7 is provided with a movable pulley matched with the first lifting rope 6. Specifically, the first lifting rope 6 is specifically a steel wire rope. The first lifting ropes 6 led out from the two ends of the lifting hook 7 are respectively and correspondingly wound on the first roller 3 and the second roller 4, when the first winding drum 5 rotates forwards and reversely, the first winding drum 5 correspondingly winds and releases the first lifting ropes 6, and under the action of the gravity of the lifting hook 7 and a heavy object, the length of the first lifting ropes 6 between the first roller 3 and the second roller 4 is correspondingly shortened or lengthened, so that the first lifting ropes 6 drive the lifting hook 7 to lift along the longitudinal direction, and further the lifting hook 7 lifts the heavy object along the longitudinal direction.

Furthermore, the slide block 2 slides obliquely, and the rotation of the first roller 3 and the second roller 4 enables the first roller 3 and the second roller 4 to drive the lifting hook 7 to slide obliquely along with the slide block 2 synchronously, so that the lifting hook 7 drives the weight to incline the slide block 2, and the weight can move horizontally and longitudinally at the same time. In view of the foregoing, the present invention can achieve the purpose of lifting the heavy object without changing the moving direction of the heavy object.

In order to prevent the heavy object from accidentally falling, a lock catch is arranged at the opening of the lifting hook 7. When a heavy object is hooked, the lock catch is opened, and the opening of the hook 7 is opened. When lifting the weight, the shackle closes, preventing the weight from disengaging the hook 7.

The utility model discloses an upper column 8, upper column 8 is used for supporting davit 1. Go up stand 8 and davit 1 and pass through the rotation fastener and articulate mutually, make davit 1 rotate for last stand 8 around the rotation fastener, conveniently adjust the slope degree of davit 1 to satisfy the user demand of different occasions, adaptability is better. After the suspension arm 1 rotates by a preset angle, the inclination angle of the suspension arm 1 reaches the best, the rotating fastener is screwed, the upper upright post 8 and the suspension arm 1 are locked by the rotating fastener, the suspension arm 1 is prevented from loosening in the starting process, and the working reliability can be improved. The preset angle refers to the optimal inclination angle of the suspension arm 1, and can be set according to actual conditions. The rotating fastener may in particular be a coupling bolt provided with a nut.

The suspension arm 1 is provided with a sliding support roller 9, the sliding support roller 9 is specifically a fixed pulley, and is specifically arranged at one end of the suspension arm 1 far away from the upper upright post 8. The utility model discloses still include second reel 10 and second lifting rope 11, second reel 10 sets firmly on last stand 8 with the help of a plurality of fastening screw. One end of a second lifting rope 11 is wound on the second winding drum 10, and the other end of the second lifting rope is wound on the sliding support roller 9 until the second lifting rope is fixedly connected with the sliding block 2, so that the second winding drum 10 drives the sliding block 2 to slide along the lifting arm 1 by winding and unwinding the second lifting rope 11. Of course, the driving method of the slider 2 is not limited to this. The second drum 10 is also specifically a winch, and the second lifting rope 11 is also specifically a steel wire rope.

Consider stability, the utility model discloses still include the counter weight frame 13 that links to each other with last stand 8, put in balancing weight 12 on the counter weight frame 13, 8 both sides of last stand are located respectively with davit 1 to counter weight frame 13, make balancing weight 12 and heavy object keep balance, prevent to turn on one's side because of the unstable emergence of focus, the security is better.

The upper upright post 8 is hinged with the counterweight frame 13 through a hinged fastener, so that the counterweight frame 13 rotates relative to the upper upright post 8 around the hinged fastener, the inclination degree of the counterweight frame 13 is convenient to adjust, and the counterweight block 12 and a heavy object are kept balanced continuously. After the counterweight frame 13 rotates by a specified angle, the inclination angle of the counterweight frame 13 reaches the best, the hinged fastening piece is screwed, the upper upright post 8 and the counterweight frame 13 are locked by the hinged fastening piece, the counterweight frame 13 is prevented from loosening, and the working reliability is further improved. The pre-designated angle refers to the optimum inclination angle of the weight frame 13, and can be set according to actual conditions. The articulated fastener may in particular also be a connecting bolt provided with a nut.

The first winding drum 5 is fixedly arranged on the counterweight frame 13, so that the first winding drum 5 and the second winding drum 10 are respectively positioned at two sides of the upper upright post 8, and the counterweight frame 13 and the suspension arm 1 are still beneficial to keeping balance.

The upper upright column 8 is provided with a transition support roller 14, and the suspension arm 1 is provided with a hoisting support roller 15. Transition supporting roller 14 specifically is the fixed pulley of locating the top of last stand 8, and hoist and mount supporting roller 15 specifically is the fixed pulley of locating davit 1 and keeping away from last stand 8 one end, and hoist and mount supporting roller 15 is located the outside of slip supporting roller 9, avoids first lifting rope 6 and second lifting rope 11 mutual interference. In addition, a tensioning transition roller 22 is arranged on one side of the upper upright post 8 close to the weight frame 13 and used for tensioning the first lifting rope 6. The tension transition roller 22 is also a fixed pulley. The first end of the first lifting rope 6 winds on the first winding drum 5, and the second end of the first lifting rope sequentially winds the tensioning transition roller 22, the transition support roller 14, the hoisting support roller 15, the second roller 4, the lifting hook 7 and the first roller 3 until being fixedly arranged at the bottom of the upper upright post 8.

The utility model discloses still including bearing seat 16, bearing seat 16 is equipped with down stand 21, and lower stand 21 is relative along the axial with last stand 8, but the two is not coaxial, and lower stand 21's the central axis sets up along longitudinal extension, the central axis slope of going up stand 8, also the slope of going up stand 8 sets up, and it is too big to prevent that first lifting rope 6 from applying the effort of supreme stand 8, is favorable to prolonging transition supporting roller 14's life, prevents that first lifting rope 6 from deviating from, and is beneficial to promoting operational reliability.

The upper upright post 8 is connected with the lower upright post 21 in a rotating way, so that the upper upright post 8 drives the suspension arm 1 to rotate 360 degrees relative to the lower upright post 21, the suspension arm 1 is used for flexible operation, and the adaptability is better. The utility model discloses still can include the rotary driving piece that links to each other with lower stand 21, rotary driving piece drive upper column 8 is rotatory for lower stand 21. The rotary driving member can be a servo motor, a hydraulic cylinder or an air cylinder.

The lower upright column 21 is vertically arranged on the bearing seat 16, the balancing weight 12 is also arranged on the upper surface of the bearing seat 16, and the gravity center of the crane is stable in the process of further hoisting heavy objects.

In order to facilitate moving the whole crane, the bottom of the bearing seat 16 is provided with a traveling roller 17, and the traveling roller 17 may be a rail roller or a rubber roller, which is not limited herein.

Bear and to set firmly third reel 18 and third lifting rope 19 on the seat 16, the one end of third lifting rope 19 twines on third reel 18, and the other end of third lifting rope 19 can be fixed on wall or fixed equipment, makes third reel 18 drive and bear the seat 16 and remove through receiving and releasing third lifting rope 19, reduces and removes the degree of difficulty, conveniently transports. The third drum 18 may also be a winch, and the third lifting rope 19 may specifically be a wire rope.

In order to prevent accidents in the process of lifting heavy objects, reinforcing ropes 20 are arranged between the upper upright post 8 and the suspension arm 1 and between the upper upright post 8 and the counterweight frame 13, and the lengths of the reinforcing ropes 20 are adjustable, so that the lengths of the reinforcing ropes 20 are changed along with the changes of the inclination angles of the suspension arm 1 and the counterweight frame 13. The number of reinforcing cords 20 provided may be adjusted depending on the implementation.

Specifically, strengthen rope 20 between upper column 8 and lifting rope and divide into two, including first rope portion and second rope portion, be equipped with the first cap of pressing and the second of mutually supporting between first rope portion and the second rope portion and press the cap, the length of the adjustable first rope portion of first cap of pressing, the length of the adjustable second rope portion of cap is pressed to the second, first cap and the second of pressing presses cap threaded connection, thereby strengthen rope 20 length between adjustment upper column 8 and the lifting rope, make the length of strengthening rope 20 and the inclination phase-match of davit 1, make strengthen rope 20 keep the tensioning, prevent that the lifting rope from falling because of the heavy accident of heavy object, the security further obtains promoting. The length of the reinforcing cord 20 between the upper upright 8 and the weight rack 13 is also adjustable, as described above.

The crane provided by the present invention is introduced in detail above, and the principle and the implementation of the present invention are explained herein by applying specific examples, and the explanation of the above examples is only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims (10)

1. A crane, comprising:

the suspension arm (1) is obliquely arranged;

the sliding block (2) is slidably arranged on the suspension arm (1), and a first roller (3) and a second roller (4) are rotatably arranged on the sliding block (2);

a first reel (5) fixedly arranged;

one end is fixed, and the other end is wound on a first lifting rope (6) of the first winding drum (5), the first lifting rope (6) is lifted by a lifting hook (7), and the first lifting rope (6) led out from the two ends of the lifting hook (7) is respectively and correspondingly wound on the first roller (3) and the second roller (4) so that the lifting hook (7) can lift heavy objects along the longitudinal direction.

2. The crane according to claim 1, characterized in that it further comprises an upper upright (8), said upper upright (8) being articulated to said boom (1) by means of a rotation fastener for locking said upper upright (8) to said boom (1) when said boom (1) is rotated about said rotation fastener by a preset angle with respect to said upper upright (8).

3. The crane according to claim 2, wherein said boom (1) is provided with a sliding support roller (9), further comprising a second drum (10) fixed to said upper column (8) and a second rope (11) having one end wound around said second drum (10) and the other end wound around said sliding support roller (9) until being fixedly connected to said slider (2) for driving said slider (2) to slide along said boom (1).

4. The crane according to claim 2, further comprising a weight frame (13) connected to said upper column (8) and supporting a weight (12), said weight frame (13) and said boom (1) being respectively disposed on both sides of said upper column (8).

5. The crane according to claim 4, characterized in that said upper column (8) is hinged to said weight carriage (13) by means of a hinge fastener for locking said upper column (8) to said weight carriage (13) when said weight carriage (13) is rotated by a given angle with respect to said upper column (8) about said hinge fastener.

6. The crane according to claim 4, wherein the first winding drum (5) is fixed to the counterweight frame (13), the upper column (8) is provided with a transition support roller (14), the boom (1) is provided with a hoisting support roller (15), and one end of the first lifting rope (6) far away from the first winding drum (5) is fixed to the bottom of the upper column (8) after sequentially bypassing the transition support roller (14), the hoisting support roller (15), the second roller (4), the lifting hook (7) and the first roller (3).

7. A crane as claimed in any one of claims 2 to 6, characterized by comprising a load-bearing seat (16) provided with a lower upright (21), said upper upright (8) being rotatably connected to said lower upright (21).

8. A crane as claimed in claim 7, characterized in that the bottom of the load carrier (16) is provided with running rollers (17).

9. The crane according to claim 7, wherein said carriage (16) is fixedly provided with a third reel (18), said third reel (18) being wound with a third hoisting rope (19) for dragging the carriage (16) to move.

10. The crane according to claim 4, characterized in that a length-adjustable reinforcing rope (20) is provided between the upper column (8) and the boom (1) and between the upper column (8) and the counterweight housing (13).

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