CN213537078U

CN213537078U - Lifting appliance for crane

Info

Publication number: CN213537078U
Application number: CN202022313893.9U
Authority: CN
Inventors: 马建生; 张鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-17
Filing date: 2020-10-17
Publication date: 2021-06-25
Anticipated expiration: 2030-10-17

Abstract

The utility model provides a lifting appliance for a crane, which relates to the field of cranes and comprises a crane boom, wherein the lower part of the front end of the crane boom is fixedly connected with a fixed connector, the lower part of the fixed connector is provided with two rotating mounting grooves, the lower part of each rotating mounting groove is rotatably mounted with a rotating mounting shaft, the lower end of each rotating mounting shaft is rotatably mounted with a main lifting structure, and the two sides of the lower end of each main lifting structure are fixedly connected with auxiliary lifting structures; when the lifting appliance for the crane works, a traction steel wire rope of the main lifting appliance vertically downwards passes through the space between the upper pulley and the lower pulley from the front side of the lower pulley; two second auxiliary pulleys at two sides of the lower fixed connecting shaft, which are close to the crane boom, are in rolling connection with the traction steel wire ropes of the two auxiliary lifting appliances; two second auxiliary pulleys far away from the cargo boom on two sides of the lower fixed connecting shaft are connected with traction steel wire ropes of the two auxiliary lifting appliances in a rolling manner, and the traction steel wire ropes of the two second auxiliary pulleys far away from the cargo boom on two sides of the lower fixed connecting shaft are connected with a first auxiliary pulley in a rolling manner.

Description

Lifting appliance for crane

Technical Field

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

Background

The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. The crane has the working characteristics of intermittent movement, namely corresponding mechanisms for taking materials, transporting, unloading and the like in one working cycle alternately work, so that the crane is more and more widely developed and used in the market.

The existing crane is mostly provided with a single-strand traction rope for lifting and transferring heavy objects, and is very easy to be interfered by external environment, such as strong wind. In a strong interference environment, a lifting appliance of the crane swings along with the swinging of a heavy object, so that great potential safety hazards exist, the crane is easily damaged, and the danger of crane operators is increased; under the condition of no external interference, the crane lifting appliance can swing in a small amplitude, and the safety problem to a certain extent exists.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model discloses a hoist for crane to solve the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a hoist for crane, is including the jib loading boom, the fixed connector of jib loading boom front end lower part fixedly connected with, two rotation mounting grooves have been seted up to the fixed connector lower part, it installs the rotation installation axle to rotate mounting groove lower part, it rotates installation axle lower extreme and installs main hoisting structure to rotate, the vice hoisting structure of main hoisting structure lower extreme both sides fixedly connected with.

Preferably, main jack-up structure is including rotating the connector, rotating through-hole, top sheave, going up fixed connection axle, first auxiliary pulley, main linking arm and bottom sheave down, two fixed connection axle under the fixedly connected with in lower part between the main linking arm, the outside is through bearing fixedly connected with bottom sheave, two in the middle of the lower fixed connection axle on the middle part fixedly connected with between the main linking arm, go up the middle outside of fixed connection axle through bearing fixedly connected with top sheave, go up the fixed connection axle both ends and run through the main linking arm and outwards extend, it is connected with first auxiliary pulley, two to go up the rotation of fixed connection axle both ends through the bearing main linking arm top fixedly connected with rotates the connector, two it has seted up and has rotated the through-hole to rotate.

Preferably, vice jack-up structure is including connecting block, vice linking arm, the vice pulley of second and rotation installation card, fixed connection axle both ends fixedly connected with connecting block, two down the vice linking arm of connecting block both ends fixedly connected with, four the one end fixedly connected with that the connecting block was kept away from to vice linking arm rotates the installation card, four it installs the vice pulley of second through the connecting axle rotation to rotate one side that vice linking arm was kept away from to rotation installation card.

Preferably, two the rotation connector rotates and installs in rotating the mounting groove, the rotation installation axle runs through fixed connection body, and passes and rotate the through-hole, the rotation connector rotates and installs in the rotation installation axle outside.

Preferably, the lower fixed connecting shaft penetrates through the two main connecting arms and extends outwards, the connecting blocks are fixedly connected with the two extending ends of the lower fixed connecting shaft, and the connecting blocks are in contact with one side, away from the lower pulley, of the main connecting arms.

Preferably, four the installation card is rotated and the one end of keeping away from the connecting block is seted up the mounting groove, and the inside fixedly connected with connecting axle in the middle of keeping away from connecting block one end of mounting groove, four the second accessory pulley passes through the bearing and rotates and install in the middle of the connecting axle.

Preferably, the two first secondary pulleys are respectively in the same plane with the two second secondary pulleys at the two ends of the lower fixed connecting shaft, and the four second secondary pulleys and the two first secondary pulleys have the same structure.

The utility model discloses a hoist for crane, its beneficial effect who possesses as follows:

when the lifting appliance for the crane works, a traction steel wire rope of the main lifting appliance vertically downwards passes through the space between the upper pulley and the lower pulley from the front side of the lower pulley; two second auxiliary pulleys at two sides of the lower fixed connecting shaft, which are close to the crane boom, are in rolling connection with the traction steel wire ropes of the two auxiliary lifting appliances; two second auxiliary pulleys far away from the cargo boom on two sides of the lower fixed connecting shaft are in rolling connection with traction steel wire ropes of the two auxiliary lifting appliances, the traction steel wire ropes of the two second auxiliary pulleys far away from the cargo boom on two sides of the lower fixed connecting shaft are in rolling connection with a first auxiliary pulley, and the four auxiliary lifting appliances and the main lifting appliance are in the same height; the main sling clamping is in the middle of the heavy object, four auxiliary slings are respectively clamped at four corners of the heavy object, the traction steel wire ropes of the auxiliary slings are deviated from the central vertical line and form included angles with the traction steel wire ropes of the main sling (the auxiliary slings are deviated from the main sling or are close to the main sling, and the deviation of the main sling has more stability), after the clamping is completed, the main sling traction steel wire ropes and the auxiliary sling traction steel wire ropes are synchronously started and stretched, and are synchronously straightened and maintained stably.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an enlarged schematic view of the lifting sling of the utility model;

FIG. 3 is a schematic structural view of the main hoisting device of the present invention;

fig. 4 is a schematic structural view of the auxiliary hoisting device of the present invention.

In the figure: 1. a cargo boom; 2. rotating the mounting groove; 3. a fixed connector; 4. rotating the mounting shaft; 5. a primary hoisting structure; 6. an auxiliary hoisting structure; 501. rotating the connector; 502. rotating the through hole; 503. an upper pulley; 504. a connecting shaft is fixed on the upper part; 505. a lower fixed connecting shaft; 506. a first secondary pulley; 507. a primary connecting arm; 508. a lower pulley; 601. connecting blocks; 602. a secondary connecting arm; 603. a second counter pulley; 604. the mounting card is rotated.

Detailed Description

The embodiment of the utility model discloses hoist for crane, as shown in fig. 1-4, including

jib loading boom

1, 1 front end lower part fixedly connected with fixed connector 3 of jib loading boom, fixed connector 3 lower part has been seted up two and has been rotated mounting groove 2, rotates mounting groove 2 lower part and rotates to install and rotate and install rotation installation axle 4, rotates installation axle 4 lower extreme and rotates installation main hoisting structure 5, and the vice hoisting structure 6 of 5 lower extreme both sides fixedly connected with of main hoisting structure.

The main hoisting structure 5 comprises a rotary connector 501, a rotary through hole 502, an upper pulley 503, an upper fixed connecting shaft 504, a lower fixed connecting shaft 505, a first auxiliary pulley 506, main connecting arms 507 and a lower pulley 508, wherein the lower part of the main connecting arms 507 is fixedly connected with the lower fixed connecting shaft 505, the middle of the lower fixed connecting shaft 505 is fixedly connected with the lower pulley 508 through a bearing, the middle of the upper fixed connecting shaft 504 is fixedly connected with the upper fixed connecting shaft 504, the middle of the upper fixed connecting shaft 504 is fixedly connected with the upper pulley 503 through a bearing, two ends of the upper fixed connecting shaft 504 penetrate through the main connecting arms 507 and extend outwards, two extending ends of the upper fixed connecting shaft 504 are rotatably connected with the first auxiliary pulley 506 through a bearing, the tops of the two main connecting arms 507 are fixedly connected with the rotary connector 501, and the rotary through.

The auxiliary hoisting structure 6 comprises connecting blocks 601, auxiliary connecting arms 602, second auxiliary pulleys 603 and rotating installation clamps 604, the two ends of the lower fixed connecting shaft 505 are fixedly connected with the connecting blocks 601, the two ends of the two connecting blocks 601 are fixedly connected with the auxiliary connecting arms 602, one ends of the four auxiliary connecting arms 602, far away from the connecting blocks 601, are fixedly connected with the rotating installation clamps 604, and the four rotating installation clamps 604 are rotatably installed on one sides, far away from the auxiliary connecting arms 602, of the second auxiliary pulleys 603 through the connecting shafts.

Two rotate the connector 501 and rotate and install in rotating mounting groove 2, rotate installation axle 4 and run through fixed connection body 3, and pass and rotate through-hole 502, rotate connector 501 and rotate and install in rotating installation axle 4 outsidely. The lower fixing connecting shaft 505 penetrates through the two main connecting arms 507 and extends outwards, two extending ends of the lower fixing connecting shaft 505 are fixedly connected with connecting blocks 601, and one sides of the two main connecting arms 507 far away from the lower pulley 508 are in contact with the connecting blocks 601.

Four rotate the installation card 604 and keep away from the one end of connecting block 601 and seted up the mounting groove, and the mounting groove is inside keeps away from the middle fixedly connected with connecting axle of connecting block 601 one end, and four second accessory pulleys 603 rotate through the bearing and install in the middle of the connecting axle. The two first secondary pulleys 506 are respectively in the same plane with the two second secondary pulleys 603 at the two ends of the lower fixed connecting shaft 505, and the four second secondary pulleys 603 and the two first secondary pulleys 506 have the same structure.

The working principle is as follows:

when the device works, a traction steel wire rope of the main lifting appliance passes through the space between the upper pulley 503 and the lower pulley 508 and vertically downwards from the front side of the lower pulley 508; two second auxiliary pulleys 603 on two sides of the lower fixed connecting shaft 505 close to the crane boom 1 are in rolling connection with traction steel wire ropes of two auxiliary lifting appliances; two second auxiliary pulleys 603 far away from the crane boom 1 on two sides of the lower fixed connecting shaft 505 are in rolling connection with traction steel wire ropes of two auxiliary hoists, the traction steel wire ropes of the two second auxiliary pulleys 603 far away from the crane boom 1 on two sides of the lower fixed connecting shaft 505 are in rolling connection with a first auxiliary pulley 506, and the four auxiliary hoists and the main hoist are in the same height;

when a heavy object is lifted, the main lifting appliance is clamped in the middle of the heavy object, the four auxiliary lifting appliances are respectively clamped at the four corners of the heavy object, the traction steel wire ropes of the auxiliary lifting appliances are deviated from the central vertical line and form included angles with the traction steel wire ropes of the main lifting appliance (the auxiliary lifting appliances are deviated from the main lifting appliance or close to the main lifting appliance, and the deviation from the main lifting appliance is more stable), and after the clamping is completed, the main lifting appliance traction steel wire ropes and the auxiliary lifting appliance traction steel wire ropes are synchronously started and stretched, synchronously stretched and.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a hoist for crane, is including jib loading boom (1), its characterized in that: the crane boom is characterized in that a fixed connecting body (3) is fixedly connected to the lower portion of the front end of the crane boom (1), two rotating installation grooves (2) are formed in the lower portion of the fixed connecting body (3), a rotating installation shaft (4) is installed in a rotating mode through rotating the lower portion of the rotating installation groove (2), a main hoisting structure (5) is installed at the lower end of the rotating installation shaft (4) in a rotating mode, and auxiliary hoisting structures (6) are fixedly connected to the two sides of the lower end of the main hoisting structure (.

2. A spreader for cranes according to claim 1, characterized in that: the main hoisting structure (5) comprises a rotary connecting body (501), a rotary through hole (502), an upper pulley (503), an upper fixed connecting shaft (504), a lower fixed connecting shaft (505), a first auxiliary pulley (506), a main connecting arm (507) and a lower pulley (508), wherein the lower part of the main connecting arm (507) is fixedly connected with the lower fixed connecting shaft (505), the middle of the lower fixed connecting shaft (505) is externally and fixedly connected with the lower pulley (508) through a bearing, the middle of the two main connecting arms (507) is fixedly connected with the upper fixed connecting shaft (504), the middle of the upper fixed connecting shaft (504) is externally and fixedly connected with the upper pulley (503) through a bearing, two ends of the upper fixed connecting shaft (504) penetrate through the main connecting arm (507) and extend outwards, and two extending ends of the upper fixed connecting shaft (504) are rotatably connected with the first auxiliary pulley (506) through, two main linking arm (507) top fixedly connected with rotates connector (501), two it has seted up rotation through-hole (502) to rotate connector (501) to link up.

3. A spreader for cranes according to claim 2, characterized in that: vice jack-up structure (6) are including connecting block (601), vice linking arm (602), second auxiliary pulley (603) and rotation installation card (604), connecting block (505) both ends fixedly connected with connecting block (601) down, two connecting block (601) both ends fixedly connected with auxiliary linking arm (602), four the one end fixedly connected with that connecting block (601) was kept away from in auxiliary linking arm (602) rotates installation card (604), four one side that rotation installation card (604) kept away from auxiliary linking arm (602) is rotated through the connecting axle and is installed second auxiliary pulley (603).

4. A spreader for cranes according to claim 2, characterized in that: two rotate connector (501) and rotate and install in rotating mounting groove (2), fixed connector (3) is run through in rotation installation axle (4), and passes and rotate through-hole (502), it installs in rotation installation axle (4) outside to rotate connector (501) rotation.

5. A spreader for cranes according to claim 2, characterized in that: lower fixed connection axle (505) run through two main linking arms (507) and outwards extend, lower fixed connection axle (505) both ends extend fixedly connected with connecting block (601), two one side contact that lower pulley (508) were kept away from in main linking arm (507) has connecting block (601).

6. A spreader for cranes according to claim 3, characterized in that: four the mounting groove has been seted up to the one end of rotating installation card (604) and keeping away from connecting block (601), and the inside fixedly connected with connecting axle of keeping away from connecting block (601) one end in the middle of the mounting groove, four second accessory pulley (603) are installed in the middle of the connecting axle through the bearing rotation.

7. A spreader for cranes according to claim 2, characterized in that: the two first secondary pulleys (506) are respectively in the same plane with two second secondary pulleys (603) at two ends of the lower fixed connecting shaft (505), and the four second secondary pulleys (603) and the two first secondary pulleys (506) have the same structure.