CN215711318U

CN215711318U - Crane counterweight limiting assembly and crane

Info

Publication number: CN215711318U
Application number: CN202121478213.7U
Authority: CN
Inventors: 李良双
Original assignee: Hunan Sany Medium Lifting Machinery Co Ltd
Current assignee: Hunan Sany Medium Lifting Machinery Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-02-01
Anticipated expiration: 2031-06-30

Abstract

The utility model relates to the technical field of cranes, in particular to a crane counterweight limiting assembly and a crane. The utility model relates to a counterweight limiting assembly of a crane, which comprises a hoisting box; the adjusting piece is arranged on the hoisting box; the counterweight is arranged below the hoisting box and opposite to the hoisting box, and the adjusting piece is abutted against or connected with the counterweight so as to limit the displacement of the counterweight in the vertical direction through the adjusting piece. Through set up on the hoist case adjusting part, work as the hoist case with clearance grow between the weight piece leads to the stopper of hoist case with when the weight piece can not be laminated, through adjusting part with weight piece butt or connect, thereby can avoid weight piece produces easily under inertial effect and rocks, thereby eliminates the potential safety hazard.

Description

Crane counterweight limiting assembly and crane

Technical Field

The utility model relates to the technical field of cranes, in particular to a crane counterweight limiting assembly and a crane.

Background

Among the prior art, install the counterweight usually on the hoist, the hoist case set up in counterweight top, the stopper on the hoist case can laminate with counterweight, but counterweight weight itself is great, and at the operation in-process, counterweight probably leads to the revolving stage to take place to warp, leads to stopper and counterweight to be unable to laminate, and when the hoist gyration was started or was stopped, counterweight produced easily under inertial effect and is rocked, had certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model solves the problem that the limiting block on the winch box cannot be attached to the counterweight, so that the counterweight is easy to shake under the action of inertia.

In order to solve the above problems, the present invention provides a crane counterweight limiting assembly, comprising:

a hoisting box;

the adjusting piece is arranged on the hoisting box;

the counterweight is arranged below the hoisting box and opposite to the hoisting box, and the adjusting piece is abutted against or connected with the counterweight so as to limit the displacement of the counterweight in the vertical direction through the adjusting piece.

Optionally, the adjusting part is an adjusting bolt, the hoisting box comprises a box body and a threaded connecting part arranged on the box body, a first threaded hole is formed in the threaded connecting part, and the adjusting bolt is suitable for being abutted to the counterweight part after penetrating through the first threaded hole.

Optionally, a limiting groove is formed in the counterweight, the limiting groove corresponds to the adjusting bolt in position, and the adjusting bolt is suitable for abutting against the bottom of the limiting groove.

Optionally, the hoisting box further comprises a bottom plate, the bottom plate is located above the counterweight, the threaded connecting piece is connected with the bottom plate, and the adjusting bolt is suitable for abutting against the upper end face of the counterweight.

Optionally, the bottom plate comprises a bottom plate body and a lug, the lug is connected with the bottom plate body, the lug protrudes out of the edge of the bottom plate body, and the threaded connector is connected with the lug; the lug is provided with a through hole, and the adjusting bolt is suitable for being abutted against the counterweight after sequentially penetrating through the first threaded hole and the through hole.

Optionally, the weight has a plurality ofly, and is a plurality of the weight stacks up the setting along vertical direction, the spacing groove is seted up in vertical direction topmost the upper end of weight.

Optionally, the adjusting member is an adjusting bolt, a second threaded hole is formed in the counterweight member, a bolt hole is formed in the hoisting box, and the adjusting bolt is suitable for being connected with the second threaded hole after penetrating through the bolt hole.

Optionally, the counterweight part further comprises a limiting shaft, a limiting hole is formed in the counterweight part and is arranged in the vertical direction, and the limiting shaft penetrates through the limiting hole.

Optionally, the adjusting part is provided in plurality, and the plurality of adjusting parts are distributed along the circumferential direction of the hoisting box.

Compared with the prior art, the limiting assembly for the counterweight part of the crane has the beneficial effects that:

according to the utility model, the adjusting piece is arranged on the hoisting box, and when the clearance between the hoisting box and the counterweight piece is enlarged, so that the limiting block of the hoisting box cannot be attached to the counterweight piece, the adjusting piece is abutted or connected with the counterweight piece, so that the counterweight piece is prevented from easily shaking under the action of inertia, and the potential safety hazard is eliminated. In addition, the adjusting piece can be adjusted in a self-adaptive mode according to the size of a gap between the hoisting box and the counterweight piece, so that the adjusting piece is always abutted against the counterweight piece.

The utility model also provides a crane, which comprises the crane counterweight limiting assembly. The beneficial effect that the hoist has is the same with spacing subassembly of hoist counterweight, does not give unnecessary details here.

Drawings

Fig. 1 is a schematic view of the position of the hoist box and counterweight in an embodiment of the utility model;

FIG. 2 is an enlarged view of a portion of the utility model at A in FIG. 1;

FIG. 3 is an enlarged view of a portion of the present invention at B of FIG. 1;

fig. 4 is a schematic view of the fitting of the adjusting bolt in the embodiment of the present invention.

Description of reference numerals:

1-a winding box, 2-an adjusting part, 3-a counterweight part, 4-a limiting shaft, 5-a slewing bearing, 11-a bottom plate, 12-a coaming, 13-a lug, 14-a threaded connecting part, 31-a limiting groove, 32-a limiting hole and 33-a notch.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the terms "an embodiment," "one embodiment," and "an implementation," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or implementation is included in at least one embodiment or example implementation of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or implementation. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.

Also, in the drawings, the Z-axis represents a vertical direction, that is, an up-down direction, and a positive direction of the Z-axis (that is, an arrow direction of the Z-axis) represents an up direction, and a negative direction of the Z-axis (that is, a direction opposite to the positive direction of the Z-axis) represents a down direction; in the drawings, the X-axis represents the left-right direction, and the positive direction of the X-axis (i.e., the arrow direction of the X-axis) represents the right, and the negative direction of the X-axis (i.e., the direction opposite to the positive direction of the X-axis) represents the left; in the drawings, the Y-axis represents the front-rear direction, and the positive direction of the Y-axis (i.e., the arrow direction of the Y-axis) represents the front, and the negative direction of the Y-axis (i.e., the direction opposite to the positive direction of the Y-axis) represents the rear; it should also be noted that the foregoing Z-axis, Y-axis, and X-axis representations are merely intended to facilitate the description of the utility model and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the utility model.

An embodiment of the present invention provides a crane counterweight limiting assembly, as shown in fig. 1, including:

a hoisting box 1;

the adjusting piece 2 is arranged on the hoisting box 1;

the counterweight 3 is arranged below the hoisting box 1 and is opposite to the hoisting box 1, and the adjusting piece 2 is abutted against or connected with the counterweight 3 so as to limit the displacement of the counterweight 3 in the vertical direction through the adjusting piece 2.

In one embodiment, the adjusting member 2 may be a telescopic mechanism, the output end of which is telescopic in the Z-axis direction, for example: air cylinder, hydraulic cylinder, electric push rod, etc. Taking the adjusting part 2 as an air cylinder as an example, the body of the air cylinder is connected with the hoisting box 1, and the output end of the air cylinder is suitable for being abutted against the counterweight part 3; when the revolving stage takes place to warp, even the stopper on the hoist case 1 can't laminate with the counterweight, the output of cylinder can be self-adaptation stretch out to with 3 butts of counterweight.

In one embodiment, the adjusting member 2 may be a spacer, such as a wedge, which may be inserted between the hoisting box 1 and the counterweight 3 when the turntable is deformed, and the wedge may be selected according to the size of the gap between the limiting block on the hoisting box 1 and the counterweight 3.

In one embodiment, the adjusting member 2 may be a spring, an axial line of the spring is arranged along the Z-axis direction, one end of the spring is connected with the hoisting box 1, the other end of the spring abuts against the weight member 3, and when a gap between the hoisting box 1 and the weight member 3 becomes larger, the spring can extend in a self-adaptive manner and abut against the weight member 3.

In one embodiment, as shown in fig. 2 and 4, the adjusting member 2 is an adjusting bolt, the winding box 1 includes a threaded connecting member 14, a first threaded hole is opened on the threaded connecting member 14, and the adjusting bolt is adapted to pass through the first threaded hole and then abut against the counterweight 3. Here, the first screw hole is provided in the Z-axis direction, and the screw 14 may be a nut or a plate-like structure with a screw hole. The winding box 1 comprises a bottom plate 11 and a coaming 12, the coaming 12 is perpendicular to the bottom plate 11, the coaming 12 is arranged along the edge of the bottom plate 11, the bottom plate 11 is located above the counterweight 3, a limiting block on the bottom plate 11 is suitable for being attached to the upper surface of the counterweight 3, and the threaded connecting piece 14 can be connected with the bottom plate 11 and also can be connected with the coaming 12. The threaded connection 14 can be integrally connected to the hoisting box 1 or welded. When clearance grow between hoist case 1 and weight 3, when the stopper that leads to hoist case 1 can not be laminated with weight 3, can be through twisting adjusting bolt soon for adjusting bolt and 3 butts of weight, thereby avoid weight 3 to produce easily under inertial effect and rock, thereby discharge the potential safety hazard.

In an embodiment, the adjusting member 2 is an adjusting bolt, the counterweight member 3 is provided with a second threaded hole, the hoisting box 1 is provided with a bolt hole, and the adjusting bolt is suitable for being connected with the second threaded hole after penetrating through the bolt hole. Here, the bolt hole may be opened in the bottom plate 11 of the hoist case 1, or the bottom plate 11 may be provided with a lug 13, and the lug 13 may be provided with a bolt hole. The bolt hole can be a smooth hole or a threaded hole, and the bolt hole corresponds to the position of the second threaded hole. When the turntable deforms to enable the weight part 3 to shake easily under the action of inertia, the adjusting bolt can be screwed to increase the gap between the winch box 1 and the weight part 3, so that the weight part 3 is prevented from shaking easily under the action of inertia, and potential safety hazards are eliminated.

From this, through set up regulating part 2 on hoist case 1, when clearance grow between hoist case 1 and the weight 3, when the stopper that leads to hoist case 1 and weight 3 can not be laminated, through regulating part 2 and weight 3 butt or be connected to can avoid weight 3 to produce easily under inertial effect and rock, thereby eliminate the potential safety hazard. In addition, the adjusting member 2 can be adaptively adjusted according to the size of the gap between the hoisting box 1 and the counterweight 3, so that the adjusting member 2 is always in contact with the counterweight 3.

As shown in fig. 2, the adjusting member 2 is an adjusting bolt, the hoisting box 1 includes a box body and a threaded connecting member 14 arranged on the box body, a first threaded hole is formed in the threaded connecting member 14, and the adjusting bolt is adapted to pass through the first threaded hole and then abut against the counterweight 3. Here, the threaded connection piece 14 can be connected with the box body integrally or welded, when the threaded connection piece 14 is of an integral structure with the bottom plate of the box body, the first threaded hole is equivalent to a threaded hole formed in the bottom plate of the box body, the cross section of the limiting groove 31 can be rectangular or circular, the limiting groove 31 is formed in the upper end surface of the counterweight 3, the adjusting bolt passes through the first threaded hole and then is inserted into the limiting groove 31, the adjusting bolt is abutted to the bottom of the limiting groove 31 by screwing the adjusting bolt, limiting of the adjusting bolt in the horizontal direction is achieved, and shaking of the counterweight 3 in the horizontal direction is avoided.

As shown in fig. 1 and 2, the adjusting member 2 is an adjusting bolt, the hoisting box 1 includes a threaded connecting member 14 and a bottom plate 11, the threaded connecting member 14 is connected with the bottom plate 11, a first threaded hole is formed in the threaded connecting member 14, the bottom plate 11 is located above the counterweight 3, and the adjusting bolt is suitable for being abutted to the upper end face of the counterweight 3 after passing through the first threaded hole. Here, the stopper on the base plate 11 is adapted to fit the upper end surface of the weight member 3, and the screw thread connecting member 14 may be integrally connected with the base plate 11 or welded. By providing the threaded connector 14 on the base plate 11, the distance between the threaded connector 14 and the weight member 3 can be reduced, thereby improving the stability of the position limitation.

As shown in fig. 2, the bottom plate 11 comprises a bottom plate body and a lug 13, the lug 13 is connected with the bottom plate body, the lug 13 protrudes out of the edge of the bottom plate body, and a threaded connector 14 is connected with the lug 13; the lug 13 is provided with a through hole, and the adjusting bolt is suitable for being abutted against the counterweight 3 after sequentially passing through the first threaded hole and the through hole. Here, the lug 13 is located the threaded connection piece 14 and is close to the one end of counterweight 3, and lug 13 and bottom plate body can welded connection or integrative the connection, and the through-hole is coaxial with the first screw hole, and the through-hole sets up along the Z axle direction with the axial lead of first screw hole respectively, through adjusting bolt and the upper surface butt of counterweight 3 to the realization is to counterweight 3 spacing in vertical direction. Here, the lugs 13 are located on the outside of the shroud 12, which may facilitate the turning of the adjusting bolt.

In this embodiment, as shown in fig. 4, there are a plurality of weight members 3, the plurality of weight members 3 are stacked in the vertical direction, and the limit groove 31 is opened in the vertical direction at the upper end of the uppermost weight member 3. That is to say, only set up spacing groove 31 on the counterweight 3 that is close to hoist case 1, through carrying out the butt to the counterweight 3 of the top, and then realize spacing all counterweights 3, avoid counterweight 3 to take place to rock, also can avoid all seting up spacing hole on counterweight 3 and lead to adjusting bolt's length overlength.

In this embodiment, the crane counterweight limiting component further comprises a limiting shaft 4, a limiting hole 32 is formed in the counterweight 3, the limiting hole 32 is arranged in the vertical direction, and the limiting shaft 4 penetrates through the limiting hole 32. Here, there are a plurality of weight members 3, all weight members 3 are stacked in the vertical direction, the position of the limiting hole 32 on each weight corresponds, the limiting shaft 4 sequentially passes through the limiting holes 32 of all weight members 3 and is connected with the weight member 3 at the lowest position, the upper end of the limiting shaft 4 is provided with a shaft sleeve, the shaft sleeve is suitable for being connected with a hydraulic cylinder, and the weight members 3 are carried through the hydraulic cylinder. Through the setting of spacing axle 4, realize prescribing a limit to the displacement of perpendicular to Z axle direction. Here, a notch 33 is opened at the circumferential edge of the stopper hole 32, and the notch 33 is adapted to escape for mounting the sleeve.

In the present embodiment, as shown in fig. 1 and 4, the adjusting member 2 is provided in plurality, and the plurality of adjusting members 2 are distributed along the circumferential direction of the hoisting box 1. Wherein, the edge that is close to Y axle positive one end at bottom plate 11 is provided with two at least lugs 13, the edge that is close to X axle positive one end at bottom plate 11 is provided with one at least lug 13, the edge that is close to X axle reverse one end at bottom plate 11 is provided with one at least lug 13, all be connected with a threaded connection 14 on every lug 13, every threaded connection 14 corresponds an adjusting part 2, it should be said that, the extension length of every adjusting part 2 can be different. Through the cooperation of multiunit regulating part 2, the reinforcing is to the spacing stability of counterweight 3.

The embodiment provides a crane, which comprises the crane counterweight limiting assembly. Hoist case 1 is connected with slewing bearing 5 of hoist through the link, and counterweight 3 installs on the revolving stage of hoist, and counterweight 3 is located hoist case 1's below, and the stopper on the hoist case 1 is suitable for and laminates with counterweight 3, and the beneficial effect that the hoist has is the same with the spacing subassembly of hoist counter weight, no longer gives unnecessary details here.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.

Claims

1. A spacing subassembly of hoist counter weight, its characterized in that includes:

a hoisting box (1);

the adjusting piece (2) is arranged on the hoisting box (1);

the counterweight (3) is arranged below the hoisting box (1) and is opposite to the hoisting box (1), and the adjusting piece (2) is abutted against or connected with the counterweight (3) so as to limit the displacement of the counterweight (3) in the vertical direction through the adjusting piece (2).

2. The crane counterweight limiting assembly according to claim 1, wherein the adjusting member (2) is an adjusting bolt, the hoisting box (1) comprises a box body and a threaded connecting member (14) arranged on the box body, a first threaded hole is formed in the threaded connecting member (14), and the adjusting bolt is adapted to pass through the first threaded hole and then abut against the counterweight (3).

3. The crane counterweight limit assembly according to claim 2, wherein a limit groove (31) is formed on the counterweight (3), the position of the limit groove (31) corresponds to the position of the adjusting bolt, and the adjusting bolt is suitable for abutting against the bottom of the limit groove (31).

4. A crane counterweight limiting assembly according to claim 2, characterized in that said hoisting box (1) further comprises a bottom plate (11), said bottom plate (11) being located above said counterweight (3), said threaded connection (14) being connected to said bottom plate (11), said adjusting bolt being adapted to abut against an upper end face of said counterweight (3).

5. The crane counterweight limit assembly of claim 4, wherein the base plate (11) comprises a base plate body and a lug (13), the lug (13) is connected with the base plate body, the lug (13) protrudes out of the edge of the base plate body, and the threaded connector (14) is connected with the lug (13); a through hole is formed in the lug (13), and the adjusting bolt is suitable for being abutted against the counterweight (3) after sequentially penetrating through the first threaded hole and the through hole.

6. A crane counterweight limiting assembly according to claim 3, characterized in that said counterweight members (3) are provided in plurality, a plurality of said counterweight members (3) are stacked in the vertical direction, and said limiting groove (31) is opened in the upper end of the uppermost counterweight member (3) in the vertical direction.

7. The crane counterweight limit assembly according to claim 1, wherein the adjusting member (2) is an adjusting bolt, the counterweight member (3) is provided with a second threaded hole, the hoisting box (1) is provided with a bolt hole, and the adjusting bolt is adapted to pass through the bolt hole and then be connected with the second threaded hole.

8. The crane counterweight limiting assembly according to any one of claims 1-7, further comprising a limiting shaft (4), wherein a limiting hole (32) is formed in the counterweight (3), the limiting hole (32) is vertically disposed, and the limiting shaft (4) is inserted into the limiting hole (32).

9. A crane counterweight limiting assembly according to any one of claims 1-7, characterized in that the number of said adjusting members (2) is plural, and the plural adjusting members (2) are distributed along the circumference of the hoisting box (1).

10. A crane comprising a crane counterweight limiting assembly as claimed in any one of claims 1 to 9.