CN113636452B

CN113636452B - Hoisting mechanism of crane and crane

Info

Publication number: CN113636452B
Application number: CN202111187556.2A
Authority: CN
Inventors: 韩元平; 杨兴华; 赵弘博; 孙建全; 汤建伟
Original assignee: Nantong Winbond Electric Engineering Co ltd
Current assignee: Nantong Winbond Electric Engineering Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2021-12-07
Anticipated expiration: 2041-10-12
Also published as: CN113636452A

Abstract

The invention discloses a hoisting mechanism of a crane and the crane, belonging to the technical field of cranes and comprising a gantry type carrier and a speed-control thread-thinning mechanism, wherein the gantry type carrier is provided with an assembly station with hollow two sides, an assembly groove for installing the speed-control thread-thinning mechanism is formed in the assembly station of the gantry type carrier, the speed-control thread-thinning mechanism is rotatably connected and installed in the assembly groove, one side of the assembly station is provided with a driving device for driving the speed-control thread-thinning mechanism to deflect around the axis of a rotating position, a group of reinforcing connecting rods for ensuring the integral strength of the gantry type carrier is arranged between the assembly stations on the two sides of the gantry type carrier, and a group of clamping blocks for cooperating with cables to form pulley blocks are symmetrically sleeved on the group of reinforcing connecting rods. The hoisting mechanism of the crane and the crane are convenient for the arrangement of the pulley block to reduce the coincidence of the winch, and can be combined with the speed-control line thinning mechanism to process and adjust the disturbance of the cable when the cable is lowered and the technical product is lifted under the emergency condition, so that the hoisting mechanism and the crane are recommended to be widely used.

Description

Hoisting mechanism of crane and crane

Technical Field

The invention belongs to the technical field of cranes, and particularly relates to a hoisting mechanism of a crane and the crane.

Background

The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. Also known as crown blocks, navigation cranes and cranes. The hoisting equipment 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 development and the use of the crane on the market are more and more extensive.

In the operation process of a hoisting structure of the existing crane, a pulley block cannot be conveniently arranged to reduce the load of winch equipment, and if a cable suddenly drops in the lowering process, the existing hoisting structure cannot perform auxiliary limiting to ensure the working effect of sudden stop equipment; and the hoisting structure can generate disturbance of the cable due to uncertain hoisting gravity center when being lifted.

Disclosure of Invention

The invention aims to provide a hoisting mechanism of a crane and the crane, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the hoisting mechanism comprises a gantry type carrier and a speed-control line-thinning mechanism, wherein the speed-control line-thinning mechanism is used for realizing speed control when a cable is lowered and guiding when a line is wound, the gantry type carrier is provided with an assembly station with hollow two sides, an assembly groove for installing the speed-control line-thinning mechanism is formed in the assembly station of the gantry type carrier, the speed-control line-thinning mechanism is rotatably connected and installed in the assembly groove, one side of the assembly station is provided with a driving device for driving the speed-control line-thinning mechanism to deflect around the axis of a rotating position, a group of reinforcing connecting rods for ensuring the integral strength of the gantry type carrier are arranged between the assembly stations on two sides of the gantry type carrier, and a group of clamping blocks used for matching cables to form pulley blocks are symmetrically sleeved on the group of reinforcing connecting rods.

Preferably, the speed-controlling thread thinning mechanism includes a set of coaxial rotating rings and a set of guide wheels mounted between the rotating rings, the guide wheels are in a ratchet structure, the rotating directions of the set of guide wheels are opposite, and the outer edge surface of the guide wheels is provided with a friction increasing structure for increasing the friction force with the surface of the cable.

As a further preferable scheme, the guide wheel comprises a wheel main body and a wheel shaft arranged at the center of the wheel main body, the end part of the wheel shaft is fixed with the two side rotating matching rings, the wheel main body is rotatably connected with the wheel shaft through a group of symmetrically arranged roller bearings, the outer edge surface of the wheel main body is provided with a groove for installing a friction increasing structure, the friction increasing structure is a plurality of mutually assembled damping tiles, and the damping tiles are embedded and fixed with the groove at the periphery of the wheel main body.

As a further preferable scheme, a transmission shaft is embedded in the side surface of the rotating and matching ring, a clamping block is configured on the periphery of the transmission shaft, an embedding and matching groove is formed in the position, matched with the transmission shaft, of the rotating and matching ring, a coupling groove matched with the clamping block is formed in the inner edge surface of the embedding and matching groove, and a conical bevel tooth surface matched with the driving device for transmission is configured on the transmission shaft.

As a further preferred scheme, the driving device is an adjusting motor arranged on the side surface of the assembling station of the gantry type carrier, a motor shaft of the adjusting motor extends into the assembling groove and is provided with a bevel gear structure, and the bevel gear structure of the adjusting motor is meshed with the conical bevel gear surface of the transmission shaft.

As a further preferable scheme, the fixture block is provided with a fixed pulley with the middle part positioned between the group of reinforcing connecting rods, and a hook at the bottom of the fixture block for connecting the fixed pulley structure.

As a further preferred scheme, bearing embedding grooves for mounting the roller bearings are formed in two sides of the wheel main body, a ratchet strip is arranged at the center of the wheel main body and matched with the wheel shaft, and a ratchet groove matched with the ratchet strip to realize rotation in a single direction is formed in the middle of the outer edge surface of the wheel shaft.

A crane is provided with a track structure for driving a gantry type carrier, wherein the track structure is positioned below the gantry type carrier, and a driving wheel which is matched with a track to realize displacement is arranged below the gantry type carrier.

Preferably, a winch structure of a crane power source is arranged above the gantry type carrier, a packaging cover covers the outside of the winch, and the edge of the packaging cover is detachably connected with the upper end face of the gantry type carrier.

As a further preferred scheme, the transmission wheel below the gantry type carrier and matched with the track is matched with the winch structure above the gantry type carrier through a linked gear structure, so that displacement along the extension direction of the track is realized

This hoisting mechanism and hoist of hoist have following technological effect and advantage:

1. a hoisting mechanism of a crane, a speed-control thread thinning mechanism realizes rotation by driving bevel gears by an adjusting motor, when the cable is lowered in the gap between a group of guide wheels of the speed-control cable-thinning mechanism, the speed-control cable-thinning mechanism does not hinder the operation of the cable, when the cable is suddenly dropped, the regulating motor drives the bevel gear to rotate the speed-controlling thread-thinning mechanism, at the moment, the guide wheel and the cable are in sliding friction due to the structure of the ratchet wheel and are matched with the damping tile which increases the friction resistance at the periphery of the guide wheel, can effectively assist the emergency stop equipment to realize the control of the mooring rope, when the product is carried by the mooring rope and lifted, if the mooring rope is disturbed due to the shift of the gravity center of the product, the speed-control thread thinning mechanism is driven by the adjusting motor to rotate the bevel gear, at the moment, rolling friction is generated between the guide wheel and the cable, the disturbance amplitude of the cable is reduced, and the regulation of the disturbance amplitude is realized by matching with the rotation of the regulation motor;

2. a hoisting mechanism of a crane, the fixture block has fixed pulleys with middle parts located between a set of reinforcement connecting rods, and hooks used for connecting fixed pulley structures at the bottom of the fixture block, when in specific implementation, whether the hooks are matched with the fixed pulleys for hanging, and the matching of a movable pulley block below and the fixed pulleys or a pulley structure hung on the hooks is selected only according to the requirements of users;

3. a crane is provided with a track structure for driving a gantry-type carrier, the track structure is positioned below the gantry-type carrier, a driving wheel which is matched with a track to realize displacement is arranged below the gantry-type carrier, a winch structure of a crane power source is arranged above the gantry-type carrier, an encapsulation cover covers the exterior of the winch, the edge of the encapsulation cover is detachably connected with the upper end face of the gantry-type carrier, the driving wheel which is matched with the track below the gantry-type carrier is matched with the winch structure above the gantry-type carrier through a linked gear structure (a transmission winch with selective transmission gear or a linked gear structure is arranged at the position of a driving source, so that the driving of the winch or the change of the displacement of the gantry-type carrier are realized), the displacement along the extension direction of the track is realized, the cost investment is reduced due to the single transmission source, and the maintenance is convenient.

Drawings

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

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic structural view of a speed-controlling thread thinning mechanism according to the present invention;

FIG. 4 is a schematic structural view of the speed-controlling thread-thinning mechanism according to the present invention in a state where the transmission shaft is detached;

FIG. 5 is a schematic view of the structure of the guide wheel of the present invention;

FIG. 6 is a cross-sectional view taken at B-B of FIG. 5 in accordance with the present invention;

FIG. 7 is a schematic view of the structure of the wheel body of the present invention.

In the figure: the device comprises a gantry type carrier 1, a 101 assembling groove, a 102 packaging cover, a 2 speed control thread thinning mechanism, a 201 rotating matching ring, a 20101 embedding groove, a 20102 coupling groove, a 202 transmission shaft, a 20201 conical bevel gear surface, a 3 guide wheel, a 301 wheel main body, a 30101 ratchet bar, a 302 wheel shaft, a 30201 ratchet groove, a 303 roller bearing, a 30301 bearing embedding groove, a 304 damping tile, a 4 reinforcing connecting rod, a 5 clamping block, a 501 fixed pulley, a 502 hook and a 6 adjusting motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

The invention provides a lifting mechanism of a crane as shown in figures 1-7, which comprises a gantry-type carrier 1 and a speed-control thread-thinning mechanism 2 for realizing speed control when a cable is lowered and guiding when a cable is reeled, wherein the gantry-type carrier 1 is provided with an assembly station with two hollow sides, an assembly groove 101 for installing the speed-control thread-thinning mechanism 2 is arranged on the assembly station of the gantry-type carrier 1, the speed-control thread-thinning mechanism 2 is rotatably connected and installed in the assembly groove 101, the speed-control thread-thinning mechanism 2 comprises a group of coaxial rotating and distributing rings 201 and a group of guide wheels 3 installed between the rotating and distributing rings 201, the guide wheels 3 are in ratchet structures, the rotating directions of the group of guide wheels 3 are opposite (two sides of a wheel main body 301 are provided with bearing embedding grooves 30301 for installing a roller bearing 303, a ratchet 30101 is arranged at the position of the wheel main body 301 matched with a wheel axle 302, a ratchet 30201 is arranged in the middle of the outer edge surface of the wheel axle 302 and is provided with a ratchet 30201 matched with the ratchet 30101 for realizing single-direction rotation, the outer edge surface of the guide wheel 3 is provided with a friction increasing structure for increasing the friction force with the surface of a cable, wherein the guide wheel 3 comprises a wheel main body 301 and a wheel shaft 302 arranged at the center of the wheel main body 301, the end part of the wheel shaft 302 is fixed with rotating matching rings 201 at two sides, the wheel main body 301 is rotatably connected with the wheel shaft 302 through a group of roller bearings 303 symmetrically arranged, the outer edge surface of the wheel main body 301 is provided with a groove for installing the friction increasing structure, the friction increasing structure is a plurality of mutually assembled damping tiles 304 (an arc structure which is integrally constructed and attached to the groove of the outer edge surface of the wheel main body 301, and the outer side of the wheel main body 301 has larger friction resistance), the damping tiles 304 are fixedly embedded with the groove at the periphery of the wheel main body 301, the side surface of the rotating matching ring 201 is embedded with a transmission shaft 202, the periphery of the transmission shaft 202 is provided with a clamping block, the embedding groove 20101 is arranged at the position where the rotating matching ring 201 is matched with the transmission shaft 202, and the inner edge surface of the embedding groove 20101 is provided with a coupling groove 20102 matched with the clamping block, a conical bevel gear surface 20201 matched with driving equipment for transmission is formed on the transmission shaft 202;

one side of the assembly station is provided with a driving device for driving the speed-control thread thinning mechanism 2 to generate angle deflection around the axis of a rotating position, the driving device is an adjusting motor 6 arranged on the side surface of the assembly station of the gantry type carrier 1, and a motor shaft of the adjusting motor 6 extends into the assembly groove 101 and is provided with an umbrella tooth structure;

a group of reinforcing connecting rods 4 for ensuring the integral strength of the gantry type carrier 1 are arranged between the assembly stations at the two sides of the gantry type carrier 1, and a group of fixture blocks 5 for cooperating with cables to perform pulley block formation are symmetrically sleeved on the group of reinforcing connecting rods 4, the fixture blocks 5 are provided with fixed pulleys 501 with the middle parts positioned between the group of reinforcing connecting rods 4, and the hook 502 which is used for connecting the fixed pulley structure at the bottom of the fixture block 5, when the concrete implementation is carried out, whether the hook 502 is matched with the fixed pulley for hanging, and the matching of the lower movable pulley block and the fixed pulley 501 or the pulley structure mounted on the hook 502 is selected only according to the requirements of users, a fixture block 5 is assembled on a group of reinforcing connecting rods 4 connected between the mounting stations of the gantry type carrier 1, the fixed pulley 501 arranged in the fixture block 5 and the hook 502 arranged below the fixed pulley for mounting can be matched with a single group or multiple groups of movable pulleys to form a pulley block structure, and the load of the winch structure on the gantry type carrier 1 is reduced.

In the working principle, when the hoisting mechanism of the crane works, a cable is placed down from a winch, passes through the speed-control line-thinning mechanism 2 arranged in the assembly grooves 101 at two sides and passes through a group of guide wheels 3, and finally a heavy object is hoisted by matching with the pulley block structure, the bevel gear structure of the adjusting motor 6 is meshed with the conical bevel gear surface 20201 of the transmission shaft 202, the speed-control line-thinning mechanism 2 is driven by the adjusting motor 6 to rotate, when the cable is placed down in a gap between the group of guide wheels 3 of the speed-control line-thinning mechanism 2, the speed-control line-thinning mechanism 2 does not obstruct the running of the cable, when the cable is suddenly dropped, the adjusting motor 6 drives the bevel gear to rotate the speed-control line-thinning mechanism 2, at the moment, the guide wheels 3 are in sliding friction with the cable due to the structure of ratchet wheels, the damping tiles 304 increasing the friction resistance are matched with the peripheries of the guide wheels 3, so that the control over the cable can effectively assist the sudden stop equipment to realize the control over the cable, when the mooring rope carries a product to be lifted, if the mooring rope is disturbed due to the gravity center offset of the product, the speed-control wire thinning mechanism 2 is driven by the adjusting motor 6 to rotate the bevel gear, at the moment, rolling friction is formed between the guide wheel 3 and the mooring rope, the disturbance amplitude of the mooring rope is reduced, and the disturbance amplitude is adjusted by being driven to rotate by the adjusting motor 6.

The invention provides a crane as shown in figure 1, which is provided with a track structure for driving a gantry type carrier 1, wherein the track structure is positioned below the gantry type carrier 1, a driving wheel which is matched with the track to realize displacement is arranged below the gantry type carrier 1, a winch structure of a crane power source is arranged above the gantry type carrier 1, an encapsulation cover 102 is covered outside the winch, the edge of the encapsulation cover 102 is detachably connected with the upper end surface of the gantry type carrier 1, the driving wheel which is matched with the track is arranged below the gantry type carrier 1 and is matched with the winch structure above the gantry type carrier 1 through a linked gear structure (the driven gear is arranged at the position of a driving source, and the driven winch or the linked gear structure is selectively driven by a driven gear or is arranged above the gantry type carrier 1), so that the displacement along the extension direction of the track is realized.

Finally, it should be noted that: 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 or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A hoisting mechanism of a crane is characterized in that: including portal type carrier (1) and be used for realizing that the hawser is transferred when accuse fast and realize receiving the fast mechanism (2) of dredging of accuse of direction when line, portal type carrier (1) has the hollow assembly station in both sides, and offers on the assembly station of portal type carrier (1) and supply the fast assembly groove (101) of dredging the installation of line mechanism (2) of accuse, but accuse speed is dredged line mechanism (2) swivelling joint and is installed in assembly groove (101), and assembly station one side is equipped with the drive equipment that transmission accuse speed dredged line mechanism (2) around the rotatory position axle center and take place the angle deflection, accuse speed is dredged line mechanism (2) and is included a set of coaxial commentaries on classics and join in marriage a set of leading wheel (3) of installation between ring (201) and commentaries on classics and join in marriage ring (201), leading wheel (3) are ratchet structure, and the rotation direction of a set of leading wheel (3) is opposite, be equipped with the strengthening connecting rod (4) of a set of guaranteeing portal type carrier (1) bulk strength between the assembly station of portal type carrier (1) both sides And a group of clamping blocks (5) used for being matched with cables to form a pulley block are symmetrically sleeved on the group of reinforcing connecting rods (4).

2. A hoisting mechanism of a crane as claimed in claim 1, wherein: and the outer edge surface of the guide wheel (3) is provided with a friction increasing structure for increasing the friction force with the surface of the cable.

3. A hoisting mechanism of a crane as claimed in claim 2, wherein: the guide wheel (3) comprises a wheel main body (301) and a wheel shaft (302) arranged at the center of the wheel main body (301), the end part of the wheel shaft (302) is fixed with the rotating matching rings (201) at two sides, the wheel main body (301) is rotatably connected with the wheel shaft (302) through a group of roller bearings (303) which are symmetrically arranged, a groove for installing a friction increasing structure is formed in the outer edge surface of the wheel main body (301), the friction increasing structure is a plurality of mutually assembled damping tiles (304), and the damping tiles (304) are fixedly embedded with the groove at the periphery of the wheel main body (301).

4. A hoisting mechanism of a crane as claimed in claim 2, wherein: the side surface of the rotating and matching ring (201) is embedded with a transmission shaft (202), a clamping block is constructed on the periphery of the transmission shaft (202), an embedding and matching groove (20101) is formed in the position, matched with the transmission shaft (202), of the rotating and matching ring (201), a coupling groove (20102) matched with the clamping block is formed in the inner edge surface of the embedding and matching groove (20101), and a conical umbrella tooth surface (20201) matched with driving equipment for transmission is constructed on the transmission shaft (202).

5. A hoisting mechanism of a crane as claimed in claim 4, wherein: the driving device is an adjusting motor (6) arranged on the side face of an assembling station of the gantry type carrier (1), a motor shaft of the adjusting motor (6) extends into the assembling groove (101) and is provided with an umbrella tooth structure, and the umbrella tooth structure of the adjusting motor (6) is meshed with a conical umbrella tooth surface (20201) of the transmission shaft (202).

6. A hoisting mechanism of a crane as claimed in claim 1, wherein: the fixture block (5) is provided with a fixed pulley (501) the middle part of which is positioned between the group of reinforcing connecting rods (4), and a hook (502) the bottom of the fixture block (5) is connected with the fixed pulley structure.

7. A hoisting mechanism of a crane as claimed in claim 3, wherein: bearing embedding grooves (30301) for mounting the roller bearing (303) are formed in two sides of the wheel main body (301), a ratchet bar (30101) is arranged at the position where the center of the wheel main body (301) is matched with the wheel shaft (302), and a ratchet groove (30201) which is matched with the ratchet bar (30101) to realize rotation in a single direction is formed in the middle of the outer edge surface of the wheel shaft (302).

8. A crane for a hoisting mechanism as claimed in any one of claims 1 to 7, characterized in that: the track structure with transmission planer-type carrier (1), track structure are located the below of planer-type carrier (1), and the below of planer-type carrier (1) is equipped with the drive wheel that the cooperation track realized the displacement.

9. A crane as claimed in claim 8, wherein: a winch structure of a crane power source is arranged above the gantry type carrier (1), a packaging cover (102) is covered outside the winch, and the edge of the packaging cover (102) is detachably connected with the upper end face of the gantry type carrier (1).

10. A crane as claimed in claim 9, wherein: the transmission wheel of the gantry type carrier (1) lower part matching track is matched with the winch structure above the gantry type carrier (1) through the linked gear structure, and displacement along the track extension direction is realized.