CN214611245U

CN214611245U - Combined pulley block and hoisting machine

Info

Publication number: CN214611245U
Application number: CN202120156688.8U
Authority: CN
Inventors: 李永帅; 吴孟刚; 孙彧韬
Original assignee: Sany America Inc
Current assignee: Zhejiang Sany Equipment Co Ltd; Sany America Inc
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-11-05
Anticipated expiration: 2031-01-19

Abstract

The utility model relates to a hoisting machinery technical field provides a modular assembly pulley and hoisting machinery. The combined pulley block comprises a support, a main pulley block and an auxiliary pulley block, the main pulley block is installed on the support, the auxiliary pulley block comprises a pulley yoke, the pulley yoke is detachably installed on the support, and the axis of a pulley of the main pulley block is perpendicular to the axis of a pulley of the auxiliary pulley block. The utility model provides a combination formula assembly pulley has realized improving hoist jib loading ability and carry the ability to the nimble regulation of assembly pulley multiplying power. The auxiliary pulley block can be arranged in the projection range of the main pulley shaft in the radial direction, so that the pulley block is more compact in structure and the lifting rope is more convenient to disassemble and assemble on the premise that the lifting rope wound on the auxiliary pulley block and the lifting rope wound on the main pulley block are not interfered.

Description

Combined pulley block and hoisting machine

Technical Field

The utility model relates to a hoisting machinery technical field especially relates to a modular assembly pulley and hoisting machinery.

Background

A fixed pulley block is usually installed on a top section arm support of the crane, and in order to meet the rope threading multiplying power requirement in maximum load and overload tests, the pulley block is usually designed according to the maximum multiplying power. However, in practice, the maximum magnification is used only when the crane is subjected to the maximum load and overload test, and the frequency of use during normal construction is very low. The pulley block on the top section arm support always has redundant pulleys which are not used in actual use, the arm support still always bears the weight of the largest pulley block, and redundant weight generated by the redundant pulley blocks has very adverse effects on the arm lifting capacity and the hoisting capacity of the long arm support.

SUMMERY OF THE UTILITY MODEL

The utility model provides a modular assembly pulley and hoisting machinery for the fixed pulley block maximum multiplying power frequency of use on solving the combination formula cantilever crane among the prior art is low, leads to the cantilever crane to bear the weight of the biggest assembly pulley all the time and influences its problem of getting up arm ability and load capacity.

The utility model provides a modular assembly pulley, including support, running block and running block, running block install in the support, the running block includes the pulley yoke, pulley yoke demountable installation in the support, running block's pulley axis with running block's pulley axis mutually perpendicular.

According to the utility model provides a pair of combined pulley block, the pulley yoke rotatable install in the support, the axis of rotation of pulley yoke with the axis of rotation of running block is parallel.

According to the utility model provides a pair of modular assembly pulley, the support is followed the both ends of the pulley axis direction of main pulley group are provided with two otic placodes respectively, the pulley yoke includes two connecting pieces, two the connecting piece is with two the otic placode one-to-one passes through the connecting axle and connects.

According to the utility model provides a pair of combined pulley block, the mounting hole has been seted up on the otic placode, the connecting axle is rotatable install in the mounting hole.

According to the utility model provides a pair of combined pulley block, vice pulley block still includes at least one vice pulley, the pulley yoke still includes two mounting panels, two the mounting panel sets up relatively, one the connecting piece is simultaneously with two one side of mounting panel links to each other, another the connecting piece is simultaneously with two the opposite side of mounting panel links to each other, vice pulley is rotatable install in two between the mounting panel.

According to the utility model provides a pair of combined pulley block, the connecting piece includes the link plate of two relative settings, the otic placode is located two between the link plate, the connecting axle is worn to locate otic placode and two the link plate.

According to the utility model provides a pair of combined pulley block, the connecting axle includes axial region and spacing portion, the axial region is worn to locate the link plate, spacing portion spacing in the outside of link plate.

According to the utility model provides a pair of combined pulley block, the connecting piece still includes the locating part, locating part demountable installation in the link plate, spacing portion clamp is located the locating part with between the link plate.

According to the utility model provides a pair of combined pulley block, the connecting piece still includes the boss, the boss is located spacing portion with between the link plate.

The utility model also provides a hoisting machine, including the frame and set up in any kind of above-mentioned combination formula assembly pulley in the frame.

The utility model provides a combination formula assembly pulley and hoisting machinery through set up the auxiliary assembly pulley in addition in the frame alone to can dismantle with the frame and be connected, realize the nimble regulation to the assembly pulley multiplying power, when the suspension load is lighter load, the auxiliary assembly pulley is demolishd to the accessible and is alleviateed cantilever crane head weight, improves hoist and gets up arm ability and suspension load ability. Because the pulley axis of the auxiliary pulley block is vertical to the pulley axis of the main pulley block, the auxiliary pulley block can be arranged in the projection range of the main pulley shaft in the radial direction, so that the pulley block is more compact in structure and the lifting rope is more convenient to disassemble and assemble on the premise that the lifting rope wound on the auxiliary pulley block and the lifting rope wound on the main pulley block are not interfered.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, 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 the drawings without creative efforts.

Fig. 1 is a schematic structural view of the combined pulley block provided by the present invention mounted on the arm support;

fig. 2 is a schematic structural view of a main pulley block in the combined pulley block provided by the present invention;

fig. 3 is a schematic structural view of an auxiliary pulley block in the combined pulley block provided by the present invention;

fig. 4 is a schematic structural view of the bracket of the combined pulley block provided by the present invention being mounted on the arm support;

reference numerals:

1. a support; 11. An ear plate; 2. A main pulley block;

21. a main pulley shaft; 22. A main pulley; 3. An auxiliary pulley block;

31. a pulley yoke; 311. A connecting member; 3111. Hanging the plate;

3112. a limiting member; 3113. A reinforcing block; 312. A connecting shaft;

313. mounting a plate; 32. A secondary pulley shaft; 33. And a secondary pulley.

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 work belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "first" and "second" are used for clearly indicating the numbering of the product parts and do not represent any substantial difference unless explicitly stated or limited otherwise. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; 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 in specific cases to those skilled in the art.

The utility model provides a modular assembly pulley, as shown in figure 1 to do the utility model provides a modular assembly pulley installs in the schematic structure of cantilever crane. The combined pulley block comprises a support 1, a main pulley block 2 and an auxiliary pulley block 3, wherein the main pulley block 2 is installed on the support 1, the auxiliary pulley block 3 comprises a pulley yoke 31, the pulley yoke 31 is detachably installed on the support 1, and the axis of a pulley of the main pulley block 2 is perpendicular to the axis of a pulley of the auxiliary pulley block 3. The support 1 is used for being fixedly connected with a frame of a hoisting machine, such as a boom of a crane.

Specifically, as shown in fig. 2, the main pulley block in the combined pulley block provided by the present invention has a schematic structural diagram, and the main pulley block 2 includes a main pulley shaft 21 and at least one main pulley 22 rotatably installed on the main pulley shaft 21. The support 1 comprises two installation parts, two ends of a main pulley shaft 21 are respectively connected with the two installation parts, and the main pulley shaft 21 can be welded and fixed with the two installation parts or integrally formed or detachably connected. As shown in fig. 3, the utility model provides a structural schematic diagram of vice assembly pulley in combination formula assembly pulley, vice assembly pulley 3 includes pulley yoke 31, vice pulley shaft 32 and rotates and installs at least one vice pulley 33 on vice pulley shaft 32, and the both ends of vice pulley shaft 32 are connected with pulley yoke 31 respectively, and vice pulley shaft 32 can be with pulley yoke 31 welded fastening or integrated into one piece.

When the combined pulley block is used, whether the auxiliary pulley block 3 is installed on the bracket 1 or not can be selected according to needs, and when the auxiliary pulley block 3 is installed on the bracket 1, the multiplying power of the combined pulley block is the sum of the multiplying powers of the main pulley block 2 and the auxiliary pulley block 3; when the multiplying power of the main pulley block 2 can meet the requirement, the auxiliary pulley block 3 can be disassembled to reduce the weight of the head of the arm support. When the auxiliary pulley block 3 is installed, after the lifting rope finishes all the main pulleys 22 in the main pulley block 2, the auxiliary pulley block 3 is wound by the movable pulley block, and when the auxiliary pulley block 3 is disassembled and assembled, the auxiliary pulley block 3 does not need to be wound again.

The utility model provides a combination formula assembly pulley is through setting up the auxiliary assembly pulley in addition in the frame alone to can dismantle with the frame and be connected, realize adjusting the flexibility of assembly pulley multiplying power, when the suspension load is lighter load, the accessible is demolishd the auxiliary assembly pulley and is alleviateed cantilever crane head weight, improves hoist and lifts arm ability and suspension load ability. In addition, because the pulley axis of the auxiliary pulley block is perpendicular to the pulley axis of the main pulley block, the auxiliary pulley block can be arranged in the projection range of the main pulley shaft in the radial direction, so that the pulley block is more compact in structure and the lifting rope wound on the main pulley block is more convenient to disassemble and assemble on the premise that the lifting rope wound on the auxiliary pulley block does not interfere with the lifting rope wound on the main pulley block.

In the embodiment of the present invention, the pulley yoke 31 is rotatably installed on the bracket 1, and the rotation axis of the pulley yoke 31 is parallel to the rotation axis of the main pulley block 2. When the support 1 is mounted at the end part of the boom of the crane boom, the pulley yoke 31 can rotate around the support 1 under the action of gravity along with the amplitude of the boom, so that the auxiliary pulley block 3 is always kept under the main pulley shaft 21, and collision and friction between a lifting rope wound on the auxiliary pulley block and a lifting rope wound on the main pulley block are prevented.

In the embodiment of the present invention, as shown in fig. 4, the utility model provides a support mounting of combined pulley block in the structural schematic diagram of cantilever crane, support 1 is provided with two otic placodes 11 respectively along the both ends of the pulley axis direction of main pulley block 2. As shown in fig. 3, the pulley yoke 31 includes two connecting members 311, and the two connecting members 311 are connected to the two ear plates 11 through connecting shafts 312 in a one-to-one correspondence. Specifically, the connecting member 311 is provided with a first mounting hole, the ear plate 11 is provided with a second mounting hole, and the connecting shaft 312 is inserted into the first mounting hole and the second mounting hole, so that the auxiliary pulley yoke 31 can rotate around the axis of the connecting shaft 312.

In the embodiment of the present invention, the pulley frame 31 further includes two mounting plates 313, the two mounting plates 313 are disposed relatively, one connecting part 311 is connected to one side of the two mounting plates 313, the other connecting part 311 is connected to the other side of the two mounting plates 313, and the secondary pulley 33 is rotatably mounted between the two mounting plates 313. The connecting member 311 may be welded to the mounting plate 313, or may be integrally formed with the mounting plate 313. The two ends of the auxiliary pulley shaft 32 are respectively fixedly connected with the two mounting plates 313, specifically, the two mounting plates 313 are correspondingly provided with third mounting holes, the two ends of the auxiliary pulley shaft 32 are respectively inserted into the third mounting holes of the two mounting plates 313, and the auxiliary pulley 33 is rotatably mounted on the auxiliary pulley shaft 32.

The embodiment of the utility model provides an in, connecting piece 311 includes two link plates 3111 of relative setting, and otic placode 11 is located between two link plates 3111, and otic placode 11 and two link plates 3111 are worn to locate by connecting axle 312. Specifically, two link plates 3111 all with mounting panel 313 fixed connection or integrated into one piece, first mounting hole runs through two link plates 3111. Two link plates 3111 make up and form U type mounting structure, and otic placode 11 is inserted and is located in the middle of the U type mounting structure. The second mounting hole is coaxial with the first mounting hole, and the connecting shaft 312 penetrates through the first mounting hole and the second mounting hole, so that the pulley yoke 31 can be hung on the two ear plates 11. Further, a hanging rope clearance groove is formed in one side of the hanging plate 3111 close to the secondary pulley 33.

Further, the connecting shaft 312 includes a shaft portion and a limiting portion, the shaft portion penetrates through the hanging plate 3111, and the limiting portion is limited on the outer side of the hanging plate 3111. Specifically, the diameter of the limiting portion is larger than that of the first mounting hole in the hanging plate so as to limit the axial direction of the connecting shaft 312.

Further, the connecting part 311 further includes a limiting part 3112, the limiting part 3112 is detachably mounted on the link plate 3111, and the limiting part is clamped between the limiting part 3112 and the link plate 3111. Specifically, the limiting member 3112 includes a limiting plate and a bolt, and the limiting plate is locked on the link plate 3111 by the bolt, so that the limiting portion is clamped between the limiting plate and the link plate 3111 to completely limit the axial displacement of the connecting shaft 312, and prevent the connecting shaft 312 from coming out of the mounting holes of the link plate 3111 and the ear plate 11.

Further, the connecting member 311 further includes a reinforcing block 3113, and the reinforcing block 3113 is located between the limiting portion and the hanging plate 3111, and is used for enhancing the strength of the hanging plate 3111 and eliminating stress concentration. When installing locating part 3112, the bolt passes limiting plate and boss 3113 back in proper order and locks with link plate 3111.

The utility model also provides a hoisting machine, this hoisting machine include the frame and set up in any embodiment of the above-mentioned in the frame combination formula assembly pulley. The crane can be a crane, a hoisting tackle and other mechanical equipment needing to use a pulley block. As shown in fig. 1, when the hoisting machine is a crane, the frame is a boom of a boom. The bracket 1 of the combined pulley block is welded and fixed with the arm support or integrally formed. Through setting up the utility model provides a combination formula assembly pulley can just can satisfy the operating requirement under the condition at the main pulley group, alleviates the weight of cantilever crane head through demolising the auxiliary pulley group, improves the arm-lifting ability and the load-carrying ability of hoist.

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. The combined pulley block is characterized by comprising a support, a main pulley block and an auxiliary pulley block, wherein the main pulley block is installed on the support, the auxiliary pulley block comprises a pulley yoke, the pulley yoke is detachably installed on the support, and the pulley axis of the main pulley block is perpendicular to the pulley axis of the auxiliary pulley block.

2. The modular pulley block of claim 1, wherein the pulley yoke is rotatably mounted to the bracket, the axis of rotation of the pulley yoke being parallel to the axis of rotation of the main pulley block.

3. The combined pulley block according to claim 1 or 2, wherein two end portions of the bracket along the pulley axis direction of the main pulley block are respectively provided with two lug plates, and the pulley frame comprises two connecting pieces, and the two connecting pieces are connected with the two lug plates through connecting shafts in a one-to-one correspondence manner.

4. The assembled pulley block of claim 3, wherein the ear plate has a mounting hole, and the connecting shaft is rotatably mounted in the mounting hole.

5. The modular pulley block of claim 3, further comprising at least one secondary pulley, wherein the pulley yoke further comprises two mounting plates, wherein the two mounting plates are disposed opposite each other, one of the connecting members is connected to one side of the two mounting plates, the other of the connecting members is connected to the other side of the two mounting plates, and the secondary pulley is rotatably mounted between the two mounting plates.

6. The combined pulley block according to claim 3, wherein the connecting member comprises two oppositely arranged hanging plates, the ear plate is positioned between the two hanging plates, and the connecting shaft is arranged through the ear plate and the two hanging plates.

7. The combined pulley block according to claim 6, wherein the connecting shaft comprises a shaft portion and a limiting portion, the shaft portion penetrates through the hanging plate, and the limiting portion is limited on the outer side of the hanging plate.

8. The combined pulley block according to claim 7, wherein the connecting member further comprises a limiting member detachably mounted on the hanging plate, and the limiting member is sandwiched between the limiting member and the hanging plate.

9. The modular pulley block of claim 7, wherein the connecting member further comprises a reinforcing block, the reinforcing block being located between the limiting portion and the hanging plate.

10. Hoisting machinery, comprising a frame and a modular block and tackle assembly according to any one of claims 1 to 9 provided on the frame.