CN212503663U

CN212503663U - Hard-arm crane

Info

Publication number: CN212503663U
Application number: CN202020917718.8U
Authority: CN
Inventors: 种英杰
Original assignee: Changzhou Bojin Machinery Manufacturing Co ltd
Current assignee: Changzhou Bojin Machinery Manufacturing Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-02-09
Anticipated expiration: 2030-05-27

Abstract

The utility model relates to the technical field of cranes, a hard-arm crane is disclosed, including lifting platform and two lifting hooks, the bottom of lifting platform is seted up flutedly, and be equipped with the threaded rod in the recess, the both ends of threaded rod all rotate with the both sides wall of recess respectively through the bearing and be connected, and the pole wall symmetry of threaded rod sets up two screw threads to soon, the one end of threaded rod runs through the lateral wall of recess and outwards extends, the lateral wall of lifting platform passes through mounting panel fixedly connected with driving motor, and driving motor's output and the one end fixed connection setting that the threaded rod extends to the outside, the below of lifting platform is equipped with articulated frame, and the upper and lower both ends of articulated frame all rotate respectively through first pivot and be connected with two first sliders and two second sliders, two first sliders all with threaded rod threaded connection. The utility model discloses can guarantee that article are lifting by crane the stability of in-process, and then reduce the danger that the goods lifted by crane, the people's of being convenient for use.

Description

Hard-arm crane

Technical Field

The utility model relates to a hoist technical field especially relates to a hard arm crane.

Background

In the case of production lines, surface treatment, etc., a crane generally carries relatively long workpieces such as frames, etc. In the prior art, the crane is mostly directly lifted by two lifting hooks through a steel wire rope, and by adopting the mode, the workpiece is easy to rotate or shake in the carrying process, the auxiliary of workers is needed, the workpiece is easy to drop, danger is caused, and people are inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art hoist and directly lifting by two lifting hooks through wire rope, adopt this kind of mode, the work piece is rotatory or rock easily in handling, needs have the staff in addition to assist, and causes the work piece to take place to drop easily, causes dangerous problem, and the hard arm hoist that proposes.

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

a hard-arm crane comprises a lifting platform and two lifting hooks, wherein a groove is formed in the bottom of the lifting platform, a threaded rod is arranged in the groove, two ends of the threaded rod are respectively and rotatably connected with two side walls of the groove through bearings, two spiral threads are symmetrically formed in the rod wall of the threaded rod, one end of the threaded rod penetrates through the side wall of the groove and extends outwards, a driving motor is fixedly connected with the side wall of the lifting platform through a mounting plate, the output end of the driving motor and one end, extending to the outside, of the threaded rod are fixedly connected and arranged, a hinge frame is arranged below the lifting platform, two first sliding blocks and two second sliding blocks are respectively and rotatably connected with the upper end and the lower end of the hinge frame through first rotating shafts, the two first sliding blocks are both in threaded connection with the threaded rod, a movable plate is arranged below the hinge frame, and a sliding chute matched with the second sliding blocks is formed, the positioning device is characterized in that a positioning rod is arranged in the sliding groove, two ends of the positioning rod are fixedly connected with two side walls of the sliding groove respectively, the second sliding block is arranged on a movable sleeve of the positioning rod, a limiting groove is formed in the bottom of the movable plate, a supporting rod is arranged in the limiting groove, two ends of the supporting rod are fixedly connected with two side walls of the limiting groove respectively, two hanging blocks are movably sleeved on a rod wall of the supporting rod, the two hanging hooks are rotatably connected with the two hanging blocks respectively through second rotating shafts, and a limiting mechanism is arranged on each hanging block.

Preferably, stop gear includes gag lever post and locating piece, hang the lateral wall of piece and seted up with gag lever post assorted through-hole, waist type hole has been seted up to the lateral wall of gag lever post, the both ends of locating piece all pass waist type hole and set up with the both sides wall fixed connection of through-hole, a plurality of and gag lever post assorted spacing grooves have been seted up to the lateral wall symmetry of bracing piece, the preceding lateral wall of fly leaf seted up with gag lever post assorted bar hole.

Preferably, the center of the rod wall of the threaded rod is movably sleeved with a stop block, and the side wall of the stop block is fixedly connected with the side wall of the groove.

Preferably, two equal fixedly connected with magnetite of both sides wall in waist type hole, and magnetite and locating piece adsorb each other and set up.

Preferably, a protective cover is arranged outside the driving motor and fixedly connected with the side wall of the lifting platform.

Preferably, the supporting rod and the positioning rod are made of alloy steel materials.

Compared with the prior art, the utility model provides a hard arm crane possesses following beneficial effect:

1. this hard boom hoist, threaded rod, first slider, second slider, driving motor, articulated frame, fly leaf and lifting hook through being equipped with can guarantee the stability of article at the lifting by crane in-process.

2. This hard boom hoist, through the stop gear who is equipped with, can prescribe a limit to the position of lifting hook, prevents that the lifting hook from taking place to slide at the in-process that lifts by crane.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can guarantee the stability of article at the in-process of lifting by crane, and then reduce the danger that the goods lifted by crane, the people's of being convenient for use.

Drawings

Fig. 1 is a schematic structural view of a hard-arm crane according to the present invention;

fig. 2 is a schematic view of the structure on the middle movable plate of the present invention.

In the figure: the lifting device comprises a lifting platform 1, a lifting hook 2, a threaded rod 3, a mounting plate 4, a driving motor 5, a hinge frame 6, a first sliding block 7, a second sliding block 8, a positioning rod 9, a supporting rod 10, a lifting block 11, a limiting rod 12, a positioning block 13, a limiting groove 14, a stop block 15, a magnet 16 and a movable plate 17.

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.

Referring to fig. 1-2, a hard-arm crane comprises a lifting platform 1 and two lifting hooks 2, wherein the lifting platform 2 can move, and is a mechanism for connecting the lifting hooks in the prior art, a groove is formed at the bottom of the lifting platform 1, a threaded rod 3 is arranged in the groove, two ends of the threaded rod 3 are respectively rotatably connected with two side walls of the groove through bearings, two spiral threads are symmetrically formed on a rod wall of the threaded rod 3, one end of the threaded rod 3 penetrates through the side wall of the groove and extends outwards, a driving motor 5 is fixedly connected with the side wall of the lifting platform 1 through a mounting plate 4, an output end of the driving motor 5 is fixedly connected with one end of the threaded rod 3 extending to the outside, a hinge frame 6 is arranged below the lifting platform 1, two first sliding blocks 7 and two second sliding blocks 8 are respectively rotatably connected with the upper end and the lower end of the hinge frame 6 through a first rotating shaft, two first sliders 7 all with 3 threaded connection of threaded rod, the below of articulated frame 6 is equipped with fly leaf 17, and fly leaf 17's top seted up with the 8 assorted spouts of second slider, be equipped with locating lever 9 in the spout, and the both ends of locating lever 9 set up with the both sides wall fixed connection of spout respectively, two second sliders 8 all establish with the locating lever 9 movable sleeve, the spacing groove has been seted up to fly leaf 17's bottom, and the spacing inslot is equipped with bracing piece 10, the both ends of bracing piece 10 respectively with the both sides wall fixed connection of spacing groove, and the pole wall movable sleeve of bracing piece 10 is equipped with two hanging pieces 11, two lifting hooks 2 all rotate with two hanging pieces 11 respectively through the second pivot and are connected the setting, all be equipped with stop gear on two hanging pieces 11.

Stop gear includes gag lever post 12 and locating piece 13, hang the lateral wall of piece 11 seted up with gag lever post 12 assorted through-hole, waist type hole has been seted up to the lateral wall of gag lever post 12, locating piece 13's both ends all pass waist type hole and set up with the both sides wall fixed connection of through-hole, bracing piece 10's lateral wall symmetry has been seted up a plurality ofly and gag lever post 12 assorted spacing groove 14, the preceding lateral wall of fly leaf 17 seted up with gag lever post 12 assorted bar hole, before lifting by crane, insert gag lever post 12 to bracing piece 10's spacing groove 13 in, can prescribe a limit to the position of hanging piece 11 and lifting hook 2, prevent that lifting hook 2 from taking place to slide at the in-process of lifting by crane.

The movable cover of the center department of 3 pole walls of threaded rod is equipped with dog 15, and the lateral wall of dog 15 and the lateral wall fixed connection setting of recess, prescribes a limit to the gliding position of first slider 7.

Equal fixedly connected with magnetite 16 of both sides wall in two waist type holes, and magnetite 16 and locating piece 13 adsorb the setting each other, can with the locating piece 13 between adsorb together, prescribe a limit to the position of gag lever post 12, prevent that gag lever post 12 breaks away from the through-hole.

The outside of driving motor 5 is equipped with the protection casing, and the protection casing sets up with the lateral wall fixed connection that lifts by crane platform 1, can protect driving motor 5.

The supporting rod 10 and the positioning rod 9 are made of alloy steel materials, so that the supporting strength can be improved, and the breakage of the supporting rod can be prevented.

In the utility model, when in use, the output end of the driving motor 5 rotates to drive the threaded rod 3 to rotate, because the rod wall of the threaded rod 3 is symmetrically provided with two threads with opposite rotation directions, the threaded rod 3 rotates to drive the two first sliders 7 to approach each other, and then the hinged frame 6 is arranged, when the two first sliders 7 approach each other, the hinged frame 6 can be extended, and the second slider 8 can slide on the positioning rod 9, and simultaneously the movable plate 17 can be driven to move in the extension process of the hinged frame 6, so that the two hooks 2 on the movable plate 17 can lift objects, and simultaneously before lifting, the limiting rod 12 is inserted into the limiting groove 13 of the supporting rod 10, the positions of the hanging block 11 and the hooks 2 can be limited, the hooks 2 can be prevented from sliding in the lifting process, and then the magnets 16 and the positioning block 13 are arranged, when the limiting rod 12 is inserted into the limiting groove 14, the magnet 16 can be adsorbed together with the positioning block 13, so that the stability of the limiting rod 12 in the using process is improved, and the limiting rod is prevented from being separated from the through hole.

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 design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. A hard-arm crane comprises a lifting platform (1) and two lifting hooks (2), and is characterized in that a groove is formed in the bottom of the lifting platform (1), a threaded rod (3) is arranged in the groove, two ends of the threaded rod (3) are respectively and rotatably connected with two side walls of the groove through bearings, two spiral threads are symmetrically formed in the rod wall of the threaded rod (3), one end of the threaded rod (3) penetrates through the side wall of the groove and extends outwards, the side wall of the lifting platform (1) is fixedly connected with a driving motor (5) through a mounting plate (4), the output end of the driving motor (5) is fixedly connected with one end of the threaded rod (3) extending to the outside, a hinged frame (6) is arranged below the lifting platform (1), and the upper end and the lower end of the hinged frame (6) are respectively and rotatably connected with two first sliding blocks (7) and two second sliding blocks (8) through first rotating shafts, the two first sliding blocks (7) are both in threaded connection with the threaded rod (3), a movable plate (17) is arranged below the hinged frame (6), the top of the movable plate (17) is provided with a sliding chute matched with the second sliding block (8), a positioning rod (9) is arranged in the sliding chute, two ends of the positioning rod (9) are respectively fixedly connected with two side walls of the sliding groove, two second sliding blocks (8) are movably sleeved with the positioning rod (9), the bottom of the movable plate (17) is provided with a limiting groove, and a support rod (10) is arranged in the limit groove, two ends of the support rod (10) are respectively and fixedly connected with two side walls of the limit groove, and the rod wall of the supporting rod (10) is movably sleeved with two hanging blocks (11), the two hanging hooks (2) are respectively and rotatably connected with the two hanging blocks (11) through second rotating shafts, and the two hanging blocks (11) are respectively provided with a limiting mechanism.

2. The hard-arm crane according to claim 1, wherein the limiting mechanism comprises a limiting rod (12) and a positioning block (13), a through hole matched with the limiting rod (12) is formed in the side wall of the hanging block (11), a kidney-shaped hole is formed in the side wall of the limiting rod (12), two ends of the positioning block (13) penetrate through the kidney-shaped hole and are fixedly connected with two side walls of the through hole, a plurality of limiting grooves (14) matched with the limiting rod (12) are symmetrically formed in the side wall of the supporting rod (10), and a strip-shaped hole matched with the limiting rod (12) is formed in the front side wall of the movable plate (17).

3. A hard-arm crane according to claim 1, characterized in that the center of the rod wall of the threaded rod (3) is movably sleeved with a stop block (15), and the side wall of the stop block (15) is fixedly connected with the side wall of the groove.

4. A hard arm crane according to claim 2, wherein magnets (16) are fixedly connected to two side walls of the waist-shaped holes, and the magnets (16) and the positioning blocks (13) are arranged in an adsorption manner.

5. A hard arm crane according to claim 1, characterized in that a protective cover is arranged outside the driving motor (5) and is fixedly connected with the side wall of the lifting platform (1).

6. A hard arm crane according to claim 1, characterized in that the support bar (10) and the positioning bar (9) are made of alloy steel material.