CN214570104U

CN214570104U - Automatic rotation type lifting hook for crane

Info

Publication number: CN214570104U
Application number: CN202120579749.1U
Authority: CN
Inventors: 王新茂; 王晓莉; 李占山; 王春光; 冯淑静; 刘尚方; 刘海辉; 孙庆民
Original assignee: Xinxiang Changjiang Hoisting Machinery Co ltd
Current assignee: Xinxiang Changjiang Hoisting Machinery Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-11-02
Anticipated expiration: 2031-03-22

Abstract

The utility model discloses an automatic rotary hook for a crane, which comprises a hook body, a first hanging plate and a second hanging plate; a first rotating mechanism is arranged between the first hanging plate and the second hanging plate and comprises a flange plate, a motor, a sun gear, planetary gears, a first gear ring and a supporting cylinder, the planetary gears are at least three and are uniformly arranged along the circumferential direction, wheel shafts of the planetary gears are respectively and rotatably connected onto the flange plate through bearings, a rotating ring is fixedly connected to the periphery of the outer side wall of the first gear ring, the supporting cylinder is arranged on the outer side of the first gear ring, the upper end of the supporting cylinder is fixed onto the flange plate, an annular supporting groove is formed in the inner ring of the supporting cylinder, and the rotating ring is slidably connected into the annular supporting groove; the bottom of the first gear ring is fixedly connected with a connecting plate, a rotating beam is rotatably connected between the two second lifting plates, and a hook handle of the lifting hook body is fixed on the rotating beam. The utility model discloses can avoid current rotatory lifting hook motor biasing to lead to the oblique problem of lifting hook focus.

Description

Automatic rotation type lifting hook for crane

Technical Field

The utility model relates to a crane accessories technical field especially relates to an autogiration formula lifting hook for hoist.

Background

A lifting hook is a component of a crane, and the lifting hook is widely used in various loading, unloading and carrying operations as one of key parts in lifting equipment.

The crane generally depends on the hoisting mechanism to connect the lifting hook through the rope to hoist the heavy object, and the current lifting hook structure, the lifting hook body can't independently control and rotate, if need control the heavy object and rotate an angle to in loading and unloading or get into the processing of next process, the traditional mode is generally for depending on the manual work, but when the heavy object is very heavy or operational environment is comparatively abominable, manual operation will be very difficult, and the security also can't be guaranteed. To this problem, an electrical rotating lifting hook has appeared, but the lifting hook of this kind of structure generally is for setting up the motor in one side of lifting hook handle, and the transmission of rethread driving gear and driven gear drives lifting hook handle and rotates, and single motor setting is in lifting hook handle one side, and motor and gear weight can make lifting hook focus incline, are unfavorable for the lifting hook to keep the focus balanced, probably appear rocking when lifting by crane the heavy object, have the potential safety hazard.

Disclosure of Invention

An object of the utility model is to provide an autogiration formula lifting hook for hoist to avoid current rotatory lifting hook motor biasing to lead to the oblique problem of lifting hook focus.

In order to solve the problem, the utility model adopts the following technical scheme:

an automatic rotary lifting hook for a crane comprises a lifting hook body, a first lifting plate and a second lifting plate, wherein the first lifting plate and the second lifting plate are respectively provided with two lifting plates which are respectively arranged in vertical parallel, a pulley box is fixedly arranged at the upper part of the first lifting plate, a pulley shaft and a plurality of pulleys are rotatably arranged in the pulley box, the pulley shaft is fixed in the pulley box, and each pulley is respectively rotatably connected with the pulley shaft;

a first rotating mechanism is arranged between the first hanger plate and the second hanger plate, the first rotating mechanism comprises a flange plate, a motor, a central gear, a planetary gear, a first gear ring and a supporting cylinder, the flange plate is horizontally fixed at the lower end of the first hanger plate, the motor is fixedly arranged on the flange plate, an output shaft of the motor vertically extends out of the flange plate and is in transmission connection with the central gear, the planetary gears are at least three and are uniformly arranged along the circumferential direction, the inner sides of the planetary gears are respectively meshed with the central gear, the outer sides of the planetary gears are respectively meshed with the first gear ring, wheel shafts of the planetary gears are respectively and rotatably connected to the flange plate through bearings, the periphery of the outer side wall of the first gear ring is fixedly connected with a rotating ring, the supporting cylinder is arranged on the outer side of the first gear ring, the upper end of the supporting cylinder is fixed on the flange plate, an annular supporting groove is formed in the inner ring of the supporting cylinder, and the rotating ring is slidably connected in the annular supporting groove;

the bottom of the first gear ring is fixedly connected with a connecting plate, the upper ends of the second hanging plates are fixed on the connecting plate, a rotating beam is rotatably connected between the two second hanging plates, and a hook handle of the hook body is fixed on the rotating beam.

Optionally, the height of the first gear ring is higher than the height of the sun gear and the planet gear, and the lower end surface of the first gear ring is vertically lower than the lower end surfaces of the sun gear and the planet gear.

Optionally, a plurality of balls are provided between the outer circumferential surface of the rotating ring and the groove bottom of the annular support groove.

Optionally, a plurality of cylindrical rollers are respectively and uniformly installed on the upper surface and the lower surface of the rotating ring in the circumferential direction, and the axial directions of the cylindrical rollers are arranged along the radial direction of the rotating ring.

Optionally, two annular supporting grooves are vertically formed in the annular supporting groove, and two rotating rings are correspondingly arranged.

Adopt above-mentioned technical scheme, the utility model has the advantages of it is following:

the utility model discloses a planetary gear structure control lifting hook body independently rotates at the horizontal plane, and motor setting wherein is directly over the lifting hook body, avoids the motor biasing for the whole focus incline that brings of lifting hook, and each planetary gear evenly arranges along the axial, has further balanced the focus, and the inertia force that each gear revolve in-process produced also can be balanced to this kind of symmetrical structure, can improve the holistic stationarity of lifting hook and the ability of shocking resistance, vibration.

The utility model discloses in adopted the structure of rotating ring sliding connection in the annular supports groove in the connection of a support section of thick bamboo and first ring gear to upper and lower surface at the rotating ring sets up cylindrical roller, sets up the ball between the tank bottom in the outer peripheral face of rotating ring and annular support groove, can reduce the friction between rotating ring and the support section of thick bamboo, first ring gear passes through bolt fixed connection with the connecting plate, the connecting plate passes through second hanger plate and live beam and hook body coupling, the bearing capacity of the hook body has been ensured.

The utility model discloses compact structure, advantage that the drive ratio is big still have.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a side view of FIG. 1;

fig. 3 is a schematic view of the connection of the top view structure of the sun gear, the planetary gear and the first ring gear of the present invention;

FIG. 4 is an enlarged partial schematic view at A of FIG. 1;

fig. 5 is a schematic view of the installation position of the cylindrical roller according to the present invention.

Detailed Description

In order to make the technical purpose, technical solutions and advantageous effects of the present invention clearer, the technical solutions of the present invention are further described below with reference to fig. 1 to 5 and specific embodiments.

The utility model provides an autogiration formula lifting hook for hoist, includes the lifting hook body 1, first hanger plate 2 and second hanger plate 3 are provided with two respectively and vertical parallel arrangement respectively, and the upper portion fixed mounting of first hanger plate 2 has pulley box 4, and 4 internal rotations of pulley box are provided with pulley shaft 5 and a plurality of pulley 6, and pulley shaft 5 fixes in pulley box 4, and each pulley 6 rotates with pulley shaft 5 respectively and is connected.

A first rotating mechanism is arranged between the first hanger plate 2 and the second hanger plate 3, the first rotating mechanism comprises a flange 7, a motor 8, a central gear 9, planetary gears 10, a first gear ring 11 and a supporting cylinder 12, the flange 7 is horizontally fixed at the lower end of the first hanger plate 2, the motor 8 is fixedly arranged on the flange 7, an output shaft of the motor 8 vertically extends out of the flange 7 and is in transmission connection with the central gear 9, at least three planetary gears 10 are uniformly arranged along the circumferential direction, the inner sides of the planetary gears 10 are respectively meshed with the central gear 9, the outer sides of the planetary gears 10 are respectively meshed with the first gear ring 11, a wheel shaft of each planetary gear 10 is respectively and rotatably connected to the flange 7 through a bearing, a rotating ring 13 is fixedly connected to the periphery of the outer side wall of the first gear ring 11, the supporting cylinder 12 is arranged on the outer side of the first gear ring 11, and the upper end of the supporting cylinder 12 is fixed on the flange 7, an annular supporting groove 14 is formed in the inner ring of the supporting cylinder 12, and the rotating ring 13 is slidably connected in the annular supporting groove 14.

The bottom of the first gear ring 11 is fixedly connected with a connecting plate 15, the upper ends of the second hanging plates 3 are fixed on the connecting plate 15, a rotating beam 16 is rotatably connected between the two second hanging plates 3, and a hook handle of the hook body 1 is fixed on the rotating beam 16.

The central gear 9, the planetary gear 10 and the first gear ring 11 are coaxial in axis, the central gear 9 is located at the center, when the central gear 9 rotates, the three planetary gears 10 are rotatably connected to the flange 7 through bearings, the three planetary gears 10 only rotate around respective rotating shafts, after the motor 8 drives the central gear 9 to rotate, the first gear ring 11 rotates through the planetary gears 10, the first gear ring 11 is fixedly connected with the connecting plate 15 through bolts uniformly distributed in the circumferential direction, the connecting plate 15 and the hook body 1 can automatically rotate in the horizontal plane along with the first gear ring 11, and lifted goods can rotate for a certain angle.

The height of the first ring gear 11 is higher than the height of the sun gear 9 and the planet gear 10, and the lower end surface of the first ring gear 11 is vertically lower than the lower end surfaces of the sun gear 9 and the planet gear 10. The connecting plate 15 connected with the first gear ring 11 can be prevented from rubbing against the sun gear 9 or the planet gears 10 during the rotation process along with the first gear ring 11, and the rotation effect can be prevented from being influenced.

A plurality of balls 17 are provided between the outer peripheral surface of the rotating ring 13 and the bottom of the annular support groove 14. The balls 17 can reduce the friction between the rotating ring 13 and the annular supporting groove 14, thereby facilitating the rotation of the hook and reducing the abrasion between mating parts.

A plurality of cylindrical rollers 18 are respectively and uniformly mounted on the upper surface and the lower surface of the rotating ring 13 in the circumferential direction, and the cylindrical rollers 18 are arranged in the radial direction of the rotating ring 13 in the axial direction. When the cylindrical rollers 18 are installed, the grooves can be directly formed in the rotating ring 13 to directly place the cylindrical rollers 18, and in the horizontal rotating process of the rotating ring 13, the cylindrical rollers 18 are in contact with the annular supporting grooves 14, so that the friction force between the rotating ring 13 and the annular supporting grooves 14 can be reduced, the rotation of the lifting hook is facilitated, and the abrasion between matching pieces is reduced.

Two annular supporting grooves 14 are vertically formed, and two rotating rings 13 are correspondingly arranged. The design of the double-layer rotating ring 13 and the annular supporting groove 14 can ensure the bearing capacity of the hook body 1 in the vertical direction.

The above embodiments are not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification of the above embodiments.

Claims

1. The utility model provides an autogiration formula lifting hook for hoist, includes the lifting hook body, its characterized in that: the pulley box is fixedly arranged at the upper part of the first hanging plate, a pulley shaft and a plurality of pulleys are rotationally arranged in the pulley box, the pulley shaft is fixed in the pulley box, and each pulley is rotationally connected with the pulley shaft;

2. An automatically rotating lifting hook for cranes, according to claim 1, characterized in that: the height of the first gear ring is higher than that of the sun gear and the planet gear, and the lower end face of the first gear ring is lower than that of the sun gear and the planet gear in the vertical direction.

3. An automatically rotating lifting hook for cranes, according to claim 1, characterized in that: a plurality of balls are arranged between the peripheral surface of the rotating ring and the bottom of the annular supporting groove.

4. An automatically rotating lifting hook for cranes, according to claim 1, characterized in that: a plurality of cylindrical rollers are uniformly arranged on the upper surface and the lower surface of the rotating ring in the circumferential direction respectively, and the cylindrical rollers are arranged along the radial direction of the rotating ring in the axial direction.

5. An autorotary hook for a crane as claimed in any one of claims 1 to 4, wherein: two annular support grooves are vertically formed, and two rotating rings are correspondingly arranged.