CN217600259U

CN217600259U - Counterweight device for crane

Info

Publication number: CN217600259U
Application number: CN202221185973.3U
Authority: CN
Inventors: 王兆波; 乔钦涛; 赵敏; 乔钦翔; 乔向东; 王祯
Original assignee: Demag Cranes Dalian Co ltd
Current assignee: Demag Cranes Dalian Co ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-10-18
Anticipated expiration: 2032-05-18

Abstract

The utility model relates to the technical field of cranes, in particular to a counterweight device for a crane, which comprises a fixing mechanism, a telescopic mechanism, a self-locking mechanism and a tool bit mechanism, wherein the telescopic mechanism is arranged on the fixing mechanism, the self-locking mechanism is arranged on the telescopic mechanism, and the tool bit mechanism is arranged on the self-locking mechanism; the telescopic mechanism comprises a motor, a cylindrical seat, a sliding rod, a top seat, a fixing groove and a fixing bolt, wherein the cylindrical seat is welded on an output shaft of the motor. The utility model overcomes prior art's is not enough, when installing the balancing weight, through telescopic machanism, the utility model discloses can be according to particular case, the length of stretching out of free choice control cutter, even also can be quick, convenient operation in constrictive operation space, through self-locking mechanism, when the installation cutter, only need revolve wrong shell, insert tool bit mechanism can, easy operation is convenient, improves the whole installation effectiveness of hoist balancing weight.

Description

Counterweight device for crane

Technical Field

The utility model relates to a hoist technical field specifically is a counter weight device for hoist.

Background

The crane mainly comprises a hoisting mechanism, a running mechanism, a luffing mechanism, a slewing mechanism, a metal structure and the like. The hoisting mechanism is the basic working mechanism of the crane, mostly consists of a hanging system and a winch, and also lifts heavy objects through a hydraulic system. The running mechanism is used for longitudinally and horizontally moving a heavy object or adjusting the working position of the crane and generally comprises a motor, a speed reducer, a brake and wheels. The luffing mechanism is only arranged on the jib crane, the amplitude is reduced when the jib crane is lifted up, the amplitude is increased when the jib crane is lifted down, and the luffing mechanism is divided into balanced luffing and unbalanced luffing. The slewing mechanism is used for enabling the arm support to slew and consists of a driving device and a slewing bearing device. The metal structure is the framework of the crane, and the main bearing parts such as a bridge frame, an arm support and a portal frame can be box-shaped structures or truss structures, can also be web structures, and can use section steel as a supporting beam. Meanwhile, the crane also needs to be provided with balancing weights for balancing the gravity of the hoisted object, and the balancing weights have larger volume and weight.

The balancing weight often needs hoist and mount on the hoist, and some balancing weights often need be fixed on the hoist through bolt locking, therefore need artifically to lock fixedly these bolts, and the working space is comparatively narrow, and the staff need change the tool bit according to the screw model of difference simultaneously, influences the operating efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a be not enough to prior art, the utility model provides a counter weight device for hoist has overcome the not enough of prior art, aims at solving some balancing weights and often need fix on the hoist through bolt locking, therefore needs the manual work to lock fixedly these bolts, and the operation space is comparatively narrow, and the staff need change the tool bit according to the screw model of difference simultaneously, influences the problem of operating efficiency.

In order to achieve the above purpose, the utility model provides a following technical scheme: a counterweight device for a crane comprises a fixing mechanism, a telescopic mechanism, a self-locking mechanism and a cutter head mechanism, wherein the telescopic mechanism is arranged on the fixing mechanism, the self-locking mechanism is arranged on the telescopic mechanism, and the cutter head mechanism is arranged on the self-locking mechanism;

the telescopic mechanism comprises a motor, a cylindrical seat, a sliding rod, a top seat, a fixed groove and a fixed bolt, wherein the cylindrical seat is welded on an output shaft of the motor, four rectangular holes which are distributed annularly are formed in the cylindrical seat, the sliding rod is connected to the cylindrical seat in a sliding manner, the top seat is welded at one end of the sliding rod, the fixed groove is formed in the side surface of the sliding rod, the fixed bolt is installed on the cylindrical seat, and the end part of the fixed bolt is inserted into the cylindrical seat and extends into the fixed groove;

self-locking mechanism includes spiral post, shell, clamp splice, even board and spring, spiral post weld in the one end of footstock, spiral post's lateral wall is provided with the spiral line, spiral post with shell threaded connection, the shell with footstock sliding connection, the quantity of clamp splice is two, two the clamp splice symmetry sets up, the clamp splice have rotated connect in the top of spiral post, even the board weld in one side of clamp splice, the both ends difference fixed connection of spring in even the board and on the spiral post.

As an optimal technical scheme of the utility model, the welding has the fixture block on even the board.

As an optimal technical scheme of the utility model, the stopper has all been welded to the both sides of spiral post.

As a preferred technical scheme of the utility model, tool bit mechanism includes bottom block, connecting rod and cutter, the bottom block sets up in two the inboard of clamp splice, the connecting rod with the bottom block welds mutually, the cutter with the connecting rod welds mutually.

As an optimal technical scheme of the utility model, the battery compartment is installed to the bottom of motor, it has the door to articulate on the battery compartment.

As a preferred technical scheme of the utility model, install the mount through the bolt on the motor, one side welding of mount has the fixed plate, the handle is installed to one side of fixed plate, install the switch on hand.

Compared with the prior art, the beneficial effects of the utility model are that:

when installing the balancing weight, through telescopic machanism, the utility model discloses can be according to particular case, the extension length of free choice control cutter, even also can be quick, convenient operation in constrictive operation space, through self-locking mechanism, when the installation cutter, only need revolve wrong shell, insert tool bit mechanism can, easy operation is convenient, improves the whole installation effectiveness of hoist balancing weight.

Drawings

Fig. 1 is a front view of the counterweight device for a crane according to the present invention;

fig. 2 is a schematic structural view of the counterweight device for a crane according to the present invention;

FIG. 3 is an enlarged schematic view of the structure of area A in FIG. 2 according to the present invention;

fig. 4 is a schematic structural diagram of the cylindrical seat of the present invention.

In the figure: 11. a fixed mount; 12. a fixing plate; 13. a handle; 14. a switch; 21. a motor; 22. a battery compartment; 23. a bin gate; 24. a cylindrical seat; 25. a slide bar; 26. a top seat; 27. fixing grooves; 28. fixing the bolt; 31. a helical column; 32. a housing; 33. a clamping block; 34. connecting plates; 35. a clamping block; 36. a spring; 37. a limiting block; 41. a bottom block; 42. a connecting rod; 43. and (4) a cutter.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Referring to fig. 1-4, a counterweight device for a crane includes a fixing mechanism, a telescopic mechanism, a self-locking mechanism and a cutter head mechanism, wherein the telescopic mechanism is installed on the fixing mechanism, the self-locking mechanism is installed on the telescopic mechanism, and the cutter head mechanism is installed on the self-locking mechanism; the fixing mechanism is used for fixing the telescopic mechanism, the telescopic mechanism can control the tool bit mechanism in a telescopic mode, the self-locking mechanism is used for locking the tool bit mechanism, and the tool bit mechanism can select the corresponding tool 43 according to the counterweight screws installed according to specific needs.

Referring to fig. 2-4, the telescoping mechanism includes a motor 21, a cylindrical seat 24, slide bars 25, a top seat 26, a fixing groove 27 and a fixing bolt 28, the cylindrical seat 24 is welded on an output shaft of the motor 21, the motor 21 drives the cylindrical seat 24 to rotate, further drives the slide bars 25 and the top seat 26 to rotate synchronously, drives the self-locking mechanism and the tool bit mechanism to rotate, and mounts the counterweight bolt, four rectangular holes distributed in an annular shape are formed in the cylindrical seat 24, the slide bars 25 are slidably connected to the cylindrical seat 24, the number of the slide bars 25 is four, the slide bars 25 are matched with the rectangular holes, and the four slide bars 25 slide in the rectangular holes of the cylindrical seat 24 respectively. The top seat 26 is welded at one end of the sliding rod 25, the fixing groove 27 is arranged on the side surface of the sliding rod 25, the fixing bolt 28 is arranged on the cylindrical seat 24, and the end part of the fixing bolt 28 is inserted into the cylindrical seat 24 and extends into the fixing groove 27; the fixing bolts 28 are in threaded connection with the cylindrical seat 24, the number of the fixing bolts 28 is two, the fixing bolts 28 are symmetrically arranged on two sides of the cylindrical seat 24, after the fixing bolts 28 are tightened, the sliding rod 25 can be slid, the position of the sliding rod 25 is adjusted, the extending length of the cutter head mechanism is adjusted, the fixing bolts 28 are screwed, and after the fixing bolts are inserted into the fixing grooves 27 of the sliding rod 25, the sliding rod 25 and the top seat 26 can be fixed relative to the cylindrical seat 24.

Referring to fig. 3, the self-locking mechanism includes a spiral column 31, a housing 32, clamping blocks 33, a connecting plate 34 and a spring 36, the spiral column 31 is welded at one end of the top seat 26, the outer side wall of the spiral column 31 is provided with spiral threads, the spiral column 31 is in threaded connection with the housing 32, the housing 32 is in sliding connection with the top seat 26, the clamping blocks 33 are two in number, the two clamping blocks 33 are symmetrically arranged, the clamping blocks 33 are rotated and connected at the top of the spiral column 31, the connecting plate 34 is welded at one side of the clamping blocks 33, and two ends of the spring 36 are respectively and fixedly connected to the connecting plate 34 and the spiral column 31. After the bottom block 41 is inserted between the two clamping blocks 33, the spring 36 pushes the connecting plate 34 to drive the clamping blocks 33 to clamp and lock the bottom block 41. The connecting plate 34 is welded with a clamping block 35. When the housing 32 is screwed, the housing 32 moves upward to clamp the latch 35, so as to prevent the latch 35, the connecting plate 34 and the clamping block 33 from rotating outward, thereby further improving the locking capability of the self-locking mechanism.

Specifically, referring to fig. 3, two sides of the spiral column 31 are welded with stoppers 37. The stopper 37 is used to restrict the fixing bottom block 41.

Specifically, referring to fig. 3, the cutter head mechanism includes a bottom block 41, a connecting rod 42 and a cutter 43, the bottom block 41 is disposed inside the two clamping blocks 33, the connecting rod 42 is welded to the bottom block 41, and the cutter 43 is welded to the connecting rod 42. The cutter head mechanism is replaceable, and the corresponding cutter 43 can be selected according to the counterweight bolt to be screwed according to specific requirements. The cutter 43 catches the bolt, and the bolt is further screwed.

Specifically, referring to fig. 2, a battery compartment 22 is installed at the bottom of the motor 21, and a compartment door 23 is hinged to the battery compartment 22. The battery compartment 22 is used for placing batteries. The motor 21 is provided with a fixed frame 11 through bolts, one side of the fixed frame 11 is welded with a fixed plate 12, one side of the fixed plate 12 is provided with a handle 13, and the handle 13 is provided with a switch 14. The switch 14 is electrically connected to the motor 21.

The working principle is as follows: the motor 21 drives the cylindrical seat 24 to rotate, further drives the sliding rod 25 and the top seat 26 to synchronously rotate, drives the self-locking mechanism and the cutter head mechanism to rotate, installs the counterweight bolt, can slide the sliding rod 25, adjust the position of the sliding rod 25 and adjust the extending length of the cutter head mechanism after tightening the fixing bolt 28, tightens the fixing bolt 28, enables the sliding rod 25 and the top seat 26 to be fixed relative to the cylindrical seat 24 after inserting the fixing bolt into the fixing groove 27 of the sliding rod 25, drives the clamping block 33 to clamp and lock the bottom block 41 after the bottom block 41 is inserted between the two clamping blocks 33, fixes the cutter head mechanism, and when screwing the shell 32, the shell 32 moves upwards to clamp the clamping block 35, prevents the clamping block 35, the connecting plate 34 and the clamping block 33 from rotating outwards, and further improves the locking capability of the self-locking mechanism.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to 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.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a counter weight device for hoist, includes fixed establishment, telescopic machanism, self-locking mechanism and tool bit mechanism, its characterized in that: the telescopic mechanism is arranged on the fixing mechanism, the self-locking mechanism is arranged on the telescopic mechanism, and the cutter head mechanism is arranged on the self-locking mechanism;

the telescopic mechanism comprises a motor (21), a cylindrical seat (24), a sliding rod (25), a top seat (26), a fixing groove (27) and a fixing bolt (28), the cylindrical seat (24) is welded on an output shaft of the motor (21), four rectangular holes distributed in an annular shape are formed in the cylindrical seat (24), the sliding rod (25) is connected to the cylindrical seat (24) in a sliding mode, the top seat (26) is welded at one end of the sliding rod (25), the fixing groove (27) is formed in the side face of the sliding rod (25), the fixing bolt (28) is installed on the cylindrical seat (24), and the end portion of the fixing bolt (28) is inserted into the cylindrical seat (24) and extends into the fixing groove (27);

self-locking mechanism includes spiral post (31), shell (32), clamp splice (33), even board (34) and spring (36), spiral post (31) weld in the one end of footstock (26), the lateral wall of spiral post (31) is provided with the spiral line, spiral post (31) with shell (32) threaded connection, shell (32) with footstock (26) sliding connection, the quantity of clamp splice (33) is two, two clamp splice (33) symmetry sets up, clamp splice (33) have rotated connect in the top of spiral post (31), even board (34) weld in one side of clamp splice (33), the both ends difference fixed connection of spring (36) in even board (34) and on spiral post (31).

2. A counterweight device for a crane according to claim 1, characterized in that: the connecting plate (34) is welded with a clamping block (35).

3. A counterweight device for crane according to claim 1, characterized in that: and two sides of the spiral column (31) are welded with limit blocks (37).

4. A counterweight device for crane according to claim 1, characterized in that: the tool bit mechanism comprises a bottom block (41), a connecting rod (42) and a cutter (43), wherein the bottom block (41) is arranged on the inner side of the two clamping blocks (33), the connecting rod (42) is welded with the bottom block (41), and the cutter (43) is welded with the connecting rod (42).

5. A counterweight device for a crane according to claim 1, characterized in that: battery compartment (22) are installed to the bottom of motor (21), it has storehouse door (23) to articulate on battery compartment (22).

6. A counterweight device for crane according to claim 1, characterized in that: install mount (11) through the bolt on motor (21), the welding of one side of mount (11) has fixed plate (12), handle (13) are installed to one side of fixed plate (12), install switch (14) on handle (13).