CN209815508U

CN209815508U - Multi-petal asynchronous grab bucket for crane

Info

Publication number: CN209815508U
Application number: CN201822125182.1U
Authority: CN
Inventors: 徐养社
Original assignee: QUANZHOU PADE MACHINERY CO Ltd
Current assignee: QUANZHOU PADE MACHINERY CO Ltd
Priority date: 2018-12-18
Filing date: 2018-12-18
Publication date: 2019-12-20
Anticipated expiration: 2028-12-18

Abstract

The utility model discloses an asynchronous grab bucket of multileaf formula for hoist, including first mounting panel and second mounting panel, the first-class angle ring of second mounting panel is equipped with a plurality of dwang, every the dwang all rotates to be connected on the second mounting panel, every the one end that the second mounting panel was kept away from to the dwang all rotates and is connected with the grab bucket, the one end of grab bucket is rotated and is connected on first mounting panel, the upside fixedly connected with threaded rod of first mounting panel, be equipped with the through-hole on the second mounting panel. The utility model discloses a starter motor drives the pivot and rotates to make second gear revolve, make first gear revolve through the meshing transmission, thereby make the thread bush at the through-hole internal rotation, and then can make the threaded rod move in the thread bush, can drive first mounting panel when the threaded rod shifts up and shift up, thereby make the grab bucket rotate, and make the bottom of a plurality of grab buckets be close to each other and can snatch the material.

Description

Multi-petal asynchronous grab bucket for crane

Technical Field

The utility model relates to the technical field of construction machinery, especially, relate to an asynchronous grab bucket of multilobe formula for hoist.

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 grab bucket is a special tool for grabbing dry and scattered goods by a crane. Two or more openable bucket-shaped jaws are combined together to form an object containing space, the jaws are closed in a material pile during loading, the material is grabbed into the object containing space, the jaws are opened in a suspended state on the material pile during unloading, and the material is scattered on the material pile. The existing crane grab bucket is generally operated by a steel wire rope of a lifting mechanism, so that a first mounting plate and a second mounting plate are close to each other, the grab bucket rotates and grabs materials, the steel wire rope is always in a tensioning state when in use, and the crane is generally not provided with a locking device, so that the steel wire rope is in the tensioning state for a long time and is easy to stretch over, and casualties are easily caused.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: the existing crane grab bucket is generally operated by a steel wire rope of a lifting mechanism, the steel wire rope is always in a tensioning state when in use, and a locking device is not generally arranged on the crane, so that the steel wire rope is in the tensioning state for a long time and is easy to stretch and break, and casualties are easily caused.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a multi-petal asynchronous grab bucket for a crane comprises a first mounting plate and a second mounting plate, wherein a plurality of rotating rods are annularly arranged on the second mounting plate at equal angles, each rotating rod is rotatably connected to the second mounting plate, one end, away from the second mounting plate, of each rotating rod is rotatably connected with a grab bucket, and one end of the grab bucket is rotatably connected to the first mounting plate;

the upside fixedly connected with threaded rod of first mounting panel, be equipped with the through-hole on the second mounting panel, the one end sliding connection that first mounting panel was kept away from to the threaded rod is in the through-hole, threaded connection has the thread bush on the threaded rod, the thread bush rotates to be connected in the through-hole, be equipped with the cavity in the second mounting panel, be equipped with drive arrangement in the cavity, the cavity is connected with first gear through drive arrangement, first gear cup joint in the thread bush outside and with thread bush fixed connection, be equipped with the ring channel on the lateral wall of through-hole, first gear revolve connects in the ring channel.

Preferably, the driving device comprises a motor fixedly connected in the cavity, the output end of the motor is fixedly connected with a rotating shaft, a second gear is fixedly connected to the rotating shaft, the second gear is rotatably connected in the cavity, and the second gear is meshed with the first gear.

Preferably, a plurality of first balls are embedded in the outer side wall of the threaded sleeve, and the first balls are connected to the side wall of the through hole in a sliding mode.

Preferably, a plurality of second balls are embedded in the bottom of the first gear, and the second balls are slidably connected to the bottom side wall of the annular groove.

Preferably, a plurality of pull rings are fixedly connected to the second mounting plate.

Preferably, the top end of the threaded rod is fixedly connected with a baffle, and the baffle is connected in the through hole in a sliding mode.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the rotating shaft is driven to rotate by starting the motor, so that the second gear rotates, the first gear rotates through meshing transmission, the threaded sleeve rotates in the through hole, the threaded rod can move in the threaded sleeve, the first mounting plate can be driven to move upwards when the threaded rod moves upwards, so that the grab buckets rotate, the bottom ends of the grab buckets are close to each other to grab materials, when the motor stops rotating, the threaded rod can be fixed to further lift the materials, the operation is safe, and potential safety hazards are reduced;

2. the first ball makes the thread bush frictional force reduce when the through-hole internal rotation, and the second ball makes the first gear frictional force reduce when the ring channel internal rotation to it is more smooth to rotate.

Drawings

Fig. 1 is a schematic front structural view of a multi-petal asynchronous grab bucket for a crane according to the present invention;

fig. 2 is a partially enlarged structural diagram of a in fig. 1.

In the figure: 1-a first mounting plate, 2-a second mounting plate, 3-a rotating rod, 4-a grab bucket, 5-a threaded rod, 6-a through hole, 7-a pull ring, 8-a threaded sleeve, 9-a first gear, 10-an annular groove, 11-a cavity, 12-a motor, 13-a rotating shaft, 14-a second gear, 15-a first ball, 16-a second ball and 17-a baffle.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, an asynchronous grab bucket of multileaf formula for hoist, including first mounting panel 1 and second mounting panel 2, the equidistance ring is equipped with a plurality of dwang 3 on the second mounting panel 2, every dwang 3 all rotates to be connected on second mounting panel 2, every dwang 3 one end of keeping away from second mounting panel 2 all rotates and is connected with grab bucket 4, grab bucket 4's one end rotates to be connected on first mounting panel 1, a plurality of pull rings 7 of fixedly connected with on the second mounting panel 2, but external chain and hoist are connected.

Upside fixedly connected with threaded rod 5 of first mounting panel 1, be equipped with through-hole 6 on the second mounting panel 2, threaded rod 5 keeps away from the one end sliding connection of first mounting panel 1 in through-hole 6, threaded rod 5 goes up threaded connection has thread bush 8, thread bush 8 rotates to be connected in through-hole 6, the top fixedly connected with baffle 17 of threaded rod 5, baffle 17 sliding connection is in through-hole 6, baffle 17 can avoid threaded rod 5 to break away from thread bush 8 when moving down in thread bush 8, it is equipped with a plurality of first balls 15 to inlay on the lateral wall of thread bush 8, first ball 15 sliding connection is on the lateral wall of through-hole 6, first ball 15 can reduce the frictional force of thread bush 8 when the internal rotation of through-hole 6, be equipped with cavity 11 in the second mounting panel 2, be equipped with drive arrangement in the cavity 11, cavity 11 is connected with first gear 9 through drive.

The driving device comprises a motor 12 fixedly connected in a cavity 11, the motor 12 is a conical rotor brake motor, the conical rotor brake motor is a three-phase asynchronous motor with a brake and a stator and a rotor, the brake is realized by a locking mechanism in the motor 12, the output end of the motor 12 cannot rotate under the condition of power failure of the motor 12, the output end of the motor 12 is fixedly connected with a rotating shaft 13, a second gear 14 is fixedly connected on the rotating shaft 13, the second gear 14 is rotatably connected in the cavity 11, the second gear 14 is meshed with a first gear 9, the motor 12 drives the rotating shaft 13 to rotate, so that the second gear 14 rotates, the first gear 9 rotates through meshing transmission, the first gear 9 is sleeved outside the threaded sleeve 8 and is fixedly connected with the threaded sleeve 8, the side wall of the through hole 6 is provided with an annular groove 10, the first gear 9 is rotatably connected in the annular groove 10, the bottom of the first gear 9 is embedded with a plurality of second balls 16, the second ball 16 is slidably connected to the bottom side wall of the annular groove 10, and the second ball 16 reduces the friction when the first gear 9 rotates in the annular groove 10.

The utility model discloses in, when the user used the device, starter motor 12, make motor 12 drive pivot 13 and rotate, thereby make second gear 14 rotate, make first gear 9 rotate through the meshing transmission, thereby make the thread bush 8 at the internal rotation of through-hole 6, and then can make threaded rod 5 remove in the thread bush 8, threaded rod 8 can drive first mounting panel 1 and move up when moving up, thereby make grab bucket 4 rotate, dwang 3 rotates simultaneously, thereby can make the bottom of a plurality of grab buckets 4 be close to each other and can snatch the material, snatch completion back motor 12 stall, promote the transportation through the hoist.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The multi-petal asynchronous grab bucket for the crane comprises a first mounting plate (1) and a second mounting plate (2), and is characterized in that a plurality of rotating rods (3) are annularly arranged on the second mounting plate (2) at equal angles, each rotating rod (3) is rotatably connected onto the second mounting plate (2), one end, away from the second mounting plate (2), of each rotating rod (3) is rotatably connected with a grab bucket (4), and one end of each grab bucket (4) is rotatably connected onto the first mounting plate (1);

upside fixedly connected with threaded rod (5) of first mounting panel (1), be equipped with through-hole (6) on second mounting panel (2), the one end sliding connection of first mounting panel (1) is kept away from in through-hole (6) threaded rod (5), threaded connection has thread bush (8) on threaded rod (5), thread bush (8) rotate to be connected in through-hole (6), be equipped with cavity (11) in second mounting panel (2), be equipped with drive arrangement in cavity (11), cavity (11) are connected with first gear (9) through drive arrangement, first gear (9) cup joint in the thread bush (8) outside and with thread bush (8) fixed connection, be equipped with ring channel (10) on the lateral wall of through-hole (6), first gear (9) rotate to be connected in ring channel (10).

2. The multi-petal asynchronous grab bucket for the crane according to claim 1, wherein the driving device comprises a motor (12) fixedly connected in the cavity (11), the output end of the motor (12) is fixedly connected with a rotating shaft (13), a second gear (14) is fixedly connected on the rotating shaft (13), the second gear (14) is rotatably connected in the cavity (11), and the second gear (14) is meshed with the first gear (9).

3. The multi-petal asynchronous grab bucket for the crane according to claim 1, wherein a plurality of first balls (15) are embedded on the outer side wall of the threaded sleeve (8), and the first balls (15) are slidably connected on the side wall of the through hole (6).

4. The crane multi-petal asynchronous grab bucket according to claim 1, wherein a plurality of second balls (16) are embedded in the bottom of the first gear (9), and the second balls (16) are slidably connected to the bottom side wall of the annular groove (10).

5. Asynchronous clamshell according to the multi-petal type for cranes according to claim 1, characterized in that a plurality of pull rings (7) are fixedly connected to the second mounting plate (2).

6. The multi-petal asynchronous grab bucket for the crane according to claim 1, wherein a baffle plate (17) is fixedly connected to the top end of the threaded rod (5), and the baffle plate (17) is slidably connected in the through hole (6).