CN111483929A

CN111483929A - Can change small crane of lifting hook form

Info

Publication number: CN111483929A
Application number: CN202010419024.6A
Authority: CN
Inventors: 王中磊; 于瑞; 孙海波
Original assignee: Changzhou Vocational Institute of Engineering
Current assignee: Changzhou Vocational Institute of Engineering
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-08-04

Abstract

The invention discloses a small crane capable of changing the shape of a lifting hook, which comprises a bottom plate, a stand column, a mounting plate, universal wheels, a non-slip mat, the stand column and a support rod, wherein the universal wheels are mounted at the bottom of the bottom plate, an object is fixed in the middle of the bottom plate, the stand column is mounted on the upper surface of the object, a sleeve plate is nested on the outer side of the stand column, one end of the support rod is fixed on the outer wall of the sleeve plate, the mounting plate is fixed at the top of the stand column, a first rotating shaft is arranged on the upper surface of the mounting plate, a movable rod is connected to the outer side of the first rotating shaft, a second rotating shaft is arranged at the end of the movable rod, a second connecting shaft is connected to the middle position of a second servo motor, a toothed plate is connected to the outer side of the second connecting shaft, a fixed block is fixed at, the practicality of device use has been improved, the limitation of device use has been reduced.

Description

Can change small crane of lifting hook form

Technical Field

The invention relates to the technical field of cranes, in particular to a small crane capable of changing the shape of a lifting hook.

Background

The small crane is a mechanical hoisting device, the small crane needs to be installed and fixed between the ground before using, can play the jack-up effect to the goods after fixed, avoid the great unstable condition of installation that appears of goods gravity, jack-up article through the small crane, can reduce the degree of difficulty of article transport, and reduced the manpower, reduce the operation degree of difficulty, wide application in building site, industrial and mining enterprise, the station, the pier, electric power, the postal service, urban construction, gardens, fields such as bridge of paving, there are some problems in the current design: 1. when the device is used, the shape of the lifting hook is not convenient to adjust, the goods in different shapes are difficult to lift, and the use limitation of the device is increased; 2. the device is at the in-process that uses, and is relatively poor with the stability of ground installation, the condition that collapses appears easily when using, and the potential safety hazard of lifting hook is great. Aiming at the problems, innovative design is urgently needed on the basis of the original small-sized crane.

Disclosure of Invention

In order to solve the above problems, the present invention provides a small crane capable of changing the shape of a hook, so as to solve the problems that the existing small crane proposed in the background art is inconvenient to adjust the shape of the hook, and the stability of installation and installation is poor when the hook is installed, which affects the normal use of the device.

In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme: a small crane capable of changing the shape of a lifting hook comprises a bottom plate, a stand column and a mounting plate, wherein universal wheels are mounted at the bottom of the bottom plate, an article is fixed in the middle of the bottom plate and is welded with the bottom plate, a first gear is arranged in the article, a knob is connected to the end of the first gear, a second gear is connected to the outer side of the first gear and is movably connected with the first gear, a first connecting shaft is fixed in the middle of the second gear, a third gear is mounted at the bottom of the first connecting shaft, a fourth gear is connected to the outer side of the third gear, a first sliding groove is formed in the bottom of the fourth gear, a first roller wheel penetrates through the first sliding groove, a screw rod penetrates through the inner part of the fourth gear, an anti-skid pad is connected to the bottom of the screw rod, and the screw rod is movably connected with the fourth gear, and the outer side of the screw rod is connected with a limiting rod, the upright post is arranged on the upper surface of the object, the outer side of the upright post is nested with a sleeve plate, the outer wall of the sleeve plate is fixed at one end of the supporting rod, the other end of the supporting rod is provided with a second roller, the outer side of the second roller is provided with a sliding plate, a second sliding chute is reserved on the surface of the sliding plate, the mounting plate is fixed at the top of the upright post, the upper surface of the mounting plate is provided with a first rotating shaft, the outer side of the first rotating shaft is connected with a movable rod, the end of the movable rod is provided with a second rotating shaft, the outer side of the second rotating shaft is connected with a chain, one end of the chain is connected with a first servo motor, the other end of the chain is provided with an object placing plate, the outer side of the object placing plate is provided with a second servo, the draw-in groove has been seted up to the inside of pinion rack, and the internally mounted of draw-in groove has the stopper, and the bottom of pinion rack is fixed with the fixed block, and for the welding assembly between fixed block and the pinion rack to the below of fixed block is provided with the lifting hook body, and the end department of mounting panel installs the third pivot, and the outside of third pivot is connected with telescopic cylinder's one end, and telescopic cylinder's the other end is connected with the lower surface of movable rod.

Further, the second gear and the third gear are coaxially connected, and the second gear and the first gear are in meshed connection.

Furthermore, the fourth gears are distributed on the outer side of the third gear at equal intervals, and the sides of the fourth gears are tightly attached to the end heads of the third gears.

Furthermore, a rotating installation structure is formed between the fourth gear and the first roller through the first sliding groove, and the circle center of the first sliding groove is overlapped with the ring center of the fourth gear.

Furthermore, a lifting installation structure is formed between the screw rod and the bottom plate through a limiting rod, and the screw rod is in threaded connection with the fourth gear.

Furthermore, the non-slip mat and the screw rod are integrally arranged, and the bottom of the non-slip mat and the bottom of the universal wheel are arranged on the same horizontal plane.

Furthermore, a rotating installation structure is formed between the installation plate and the object placing piece through the upright posts, and the upright posts are symmetrically arranged relative to the axis of the sleeve plate.

Furthermore, a rotating installation structure is formed between the movable rod and the installation plate through a first rotating shaft, and the movable rod and the chain are arranged in parallel.

Further, the axis symmetry of pinion rack about the second connecting axle is provided with 2, and is connected for the meshing between pinion rack and the second connecting axle to the pinion rack with put the thing board between be the block and be connected.

The invention has the beneficial effects that:

the utility model provides a can change small crane of lifting hook form, be convenient for adjust the form of lifting hook, the slipmat can improve the stability that bottom plate and ground are connected, the condition that appears collapsing when can avoiding the device to use, the bracing piece can support the stand through the lagging, thereby can improve the stability of stand installation when using, the condition of empting can not appear, stability with ground installation is stronger, the practicality of device use has been improved, lifting hook body symmetry sets up 2, the lifting hook body that can keep one end all the time can lift by crane article, and can adjust the form of lifting hook body along with the form of article, reduce the limitation that the device used, and the range of application is wide.

Drawings

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

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic top view of the base plate of the present invention;

FIG. 4 is a schematic view of a connection structure of a third gear and a fourth gear according to the present invention;

fig. 5 is a schematic view of a connection structure of a second connecting shaft and a toothed plate according to the present invention;

FIG. 6 is a schematic view of the connection structure of the object placing plate and the toothed plate according to the present invention;

FIG. 7 is a schematic view of a connecting structure of a lead screw and a limiting rod according to the present invention.

Wherein: 1. a base plate; 2. a universal wheel; 3. placing an object; 4. a first gear; 5. a knob; 6. a second gear; 7. a first connecting shaft; 8. a third gear; 9. a fourth gear; 10. a first chute; 11. a first roller; 12. a screw rod; 13. a non-slip mat; 14. a limiting rod; 15. a column; 16. sheathing; 17. a support bar; 18. a second roller; 19. a slide plate; 20. a second chute; 21. mounting a plate; 22. a first rotating shaft; 23. a movable rod; 24. a second rotating shaft; 25. a chain; 26. a first servo motor; 27. a storage plate; 28. a second servo motor; 29. a second connecting shaft; 30. a toothed plate; 31. a card slot; 32. a limiting block; 33. a fixed block; 34. a hook body; 35. a third rotating shaft; 36. a telescopic cylinder.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying fig. 1-7, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

A small crane capable of changing the shape of a lifting hook comprises a bottom plate 1, a stand column 15 and a mounting plate 21, wherein a universal wheel 2 is mounted at the bottom of the bottom plate 1, an object placing part 3 is fixed at the middle position of the bottom plate 1, the object placing part 3 is welded with the bottom plate 1, a first gear 4 is arranged inside the object placing part 3, a knob 5 is connected at the end of the first gear 4, a second gear 6 is connected to the outer side of the first gear 4, the second gear 6 is movably connected with the first gear 4, a first connecting shaft 7 is fixed at the middle position of the second gear 6, a third gear 8 is mounted at the bottom of the first connecting shaft 7, a fourth gear 9 is connected to the outer side of the third gear 8, a first sliding groove 10 is formed at the bottom of the fourth gear 9, a first roller 11 penetrates through the first sliding groove 10, a screw rod 12 penetrates through the fourth gear 9, the bottom of the screw rod 12 is connected with a non-slip mat 13, the screw rod 12 is movably connected with the fourth gear 9, the outer side of the screw rod 12 is connected with a limit rod 14, the upright post 15 is installed on the upper surface of the object 3, the outer side of the upright post 15 is nested with a sleeve plate 16, the outer wall of the sleeve plate 16 is fixed at one end of a support rod 17, the other end of the support rod 17 is provided with a second roller 18, the outer side of the second roller 18 is provided with a sliding plate 19, a second sliding chute 20 is reserved on the surface of the sliding plate 19, the mounting plate 21 is fixed at the top of the upright post 15, the upper surface of the mounting plate 21 is provided with a first rotating shaft 22, the outer side of the first rotating shaft 22 is connected with a movable rod 23, the end of the movable rod 23 is provided with a second rotating shaft 24, the outer side of the second rotating shaft 24 is connected with a chain 25, one end of, a second servo motor 28 is arranged on the outer side of the object placing plate 27, a second connecting shaft 29 is connected to the middle position of the second servo motor 28, toothed plates 30 are symmetrically connected to the outer side of the second connecting shaft 29 in the left-right direction, clamping grooves 31 are formed in the toothed plates 30, limiting blocks 32 are arranged in the clamping grooves 31, fixing blocks 33 are fixed to the bottoms of the toothed plates 30, the fixing blocks 33 are welded to the toothed plates 30, a hook body 34 is arranged below the fixing blocks 33, a third rotating shaft 35 is arranged at the end of the mounting plate 21, the outer side of the third rotating shaft 35 is connected with one end of a telescopic cylinder 36, the other end of the telescopic cylinder 36 is connected with the lower surface of the movable rod 23, the second gear 6 is coaxially connected with the third gear 8, the second gear 6 is in meshed connection with the first gear 4, and the fourth gears 9 are equidistantly distributed on the outer side of the third gear 8, the edge side of the fourth gear 9 is tightly attached to the end of the third gear 8, the fourth gear 9 and the first roller 11 form a rotary mounting structure through the first chute 10, the center of the first chute 10 coincides with the center of the ring of the fourth gear 9, the screw rod 12 and the bottom plate 1 form a lifting mounting structure through the limiting rod 14, the screw rod 12 is in threaded connection with the fourth gear 9, the anti-skid pad 13 and the screw rod 12 are integrally arranged, the bottom of the anti-skid pad 13 and the bottom of the universal wheel 2 are arranged in the same horizontal plane, the mounting plate 21 and the object placing piece 3 form a rotary mounting structure through the upright post 15, the upright posts 15 are symmetrically arranged relative to the axis of the sleeve plate 16, the movable rod 23 and the mounting plate 21 form a rotary mounting structure through the first rotating shaft 22, the movable rod 23 and the chain 25 are arranged in parallel, the toothed plates 30 are symmetrically arranged 2 relative to the axis of the second connecting shaft 29, the toothed plate 30 is engaged with the second connecting shaft 29, and the toothed plate 30 is engaged with the object placing plate 27.

After the device moves to a proper position, the knob 5 is rotated manually, the knob 5 can drive the first gear 4 to rotate after rotating, the first gear 4 is in meshed connection with the second gear 6, so that the second gear 6 can be driven to rotate after the first gear 4 rotates, and the second gear 6 is in coaxial connection with the third gear 8, so that the third gear 8 can be driven to rotate after the second gear 6 rotates, meanwhile, the third gear 8 and the fourth gear 9 are mutually attached, so that the fourth gear 9 can rotate along with the fourth gear, after the fourth gear 9 rotates, the screw rod 12 can move downwards under the influence of an acting force limited by the limiting rod 14 and drive the anti-skid pads 13 to be attached to the ground, the anti-skid pads 13 distributed at equal angles can improve the stability of connection between the bottom plate 1 and the ground, and the situation that the device collapses when in use can be avoided; when the device is used for hanging the hook, the movable rod 23 arranged in an inclined way can be adjusted in angle through the first rotating shaft 22, when the angle of the movable rod 23 needs to be adjusted, the telescopic cylinder 36 works to press the middle position of the movable rod 23 upwards, then the movable rod 23 can be angularly changed by the first rotating shaft 22, so that the goods at different positions can be lifted, the limitation of the device can be reduced, since the telescopic cylinder 36 is capable of rotating with the mounting plate 21 via the third rotating shaft 35 when operating, no limiting force occurs, meanwhile, when the device works, the mounting plate 21 can rotate with the object 3 through the upright post 15, and in the rotating process of the mounting plate 21, the supporting rod 17 can support the upright post 15 through the sleeve plate 16, therefore, the stability of the installation of the upright post 15 in use can be improved, and the situation of toppling can not occur; hook body 34 symmetry has set up 2, when the article need the lifting hook, second servo motor 28 work drives second connecting axle 29 and rotates, second connecting axle 29 can drive the pinion rack 30 that the symmetry set up and carry out elevating movement after that, when second connecting axle 29 is driven clockwise rotation, the hook body 34 of one end is driven and is moved down, other end hook body can be driven the rebound, thereby can keep the hook body of one end to lift by crane article all the time, and can adjust the form of hook body along with the form of article, the limitation that the reducing mechanism used.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A small crane capable of changing the shape of a lifting hook is characterized by comprising a bottom plate (1), a stand column (15) and a mounting plate (21), wherein universal wheels (2) are mounted at the bottom of the bottom plate (1), an object (3) is fixed in the middle of the bottom plate (1), the object (3) is welded with the bottom plate (1), a first gear (4) is arranged inside the object (3), a knob (5) is connected to the end of the first gear (4), a second gear (6) is connected to the outer side of the first gear (4), the second gear (6) is movably connected with the first gear (4), a first connecting shaft (7) is fixed in the middle of the second gear (6), a third gear (8) is mounted at the bottom of the first connecting shaft (7), and a fourth gear (9) is connected to the outer side of the third gear (8), a first sliding groove (10) is formed in the bottom of the fourth gear (9), a first roller (11) penetrates through the first sliding groove (10), a lead screw (12) penetrates through the fourth gear (9), an anti-slip pad (13) is connected to the bottom of the lead screw (12), the lead screw (12) is movably connected with the fourth gear (9), a limiting rod (14) is connected to the outer side of the lead screw (12), the stand column (15) is installed on the upper surface of the object (3), a sleeve plate (16) is nested on the outer side of the stand column (15), the outer wall of the sleeve plate (16) is fixed to one end of the supporting rod (17), a second roller (18) is installed at the other end of the supporting rod (17), a sliding plate (19) is arranged on the outer side of the second roller (18), a second sliding groove (20) is reserved on the surface of the sliding plate (19), and the installing plate (21) is fixed to the top of the stand column (15), a first rotating shaft (22) is arranged on the upper surface of the mounting plate (21), a movable rod (23) is connected to the outer side of the first rotating shaft (22), a second rotating shaft (24) is arranged at the end of the movable rod (23), a chain (25) is connected to the outer side of the second rotating shaft (24), a first servo motor (26) is connected to one end of the chain (25), a storage plate (27) is arranged at the other end of the chain (25), a second servo motor (28) is installed on the outer side of the storage plate (27), a second connecting shaft (29) is connected to the middle position of the second servo motor (28), toothed plates (30) are symmetrically connected to the outer side of the second connecting shaft (29), clamping grooves (31) are formed in the toothed plates (30), limiting blocks (32) are installed in the clamping grooves (31), fixing blocks (33) are fixed to the bottoms of the toothed plates (30), and the fixing blocks (33) and the toothed plates (30) are welded, and the below of fixed block (33) is provided with lifting hook body (34), and the end department of mounting panel (21) installs third pivot (35), and the outside of third pivot (35) is connected with the one end of telescopic cylinder (36), and the other end of telescopic cylinder (36) is connected with the lower surface of movable rod (23).

2. A small crane with a changeable hook configuration as claimed in claim 1, characterized in that the second gear (6) and the third gear (8) are coaxially connected and the second gear (6) and the first gear (4) are meshed.

3. A small crane with a changeable hook configuration as claimed in claim 1, wherein the fourth gear (9) is equally spaced outside the third gear (8), and the side of the fourth gear (9) is closely fitted to the end of the third gear (8).

4. A small crane with a changeable hook form according to claim 1, characterized in that the fourth gear (9) and the first roller (11) form a rotary mounting structure through the first sliding chute (10), and the center of the first sliding chute (10) coincides with the center of the fourth gear (9).

5. A small-sized crane with a changeable lifting hook form according to claim 1, characterized in that a lifting installation structure is formed between the screw rod (12) and the bottom plate (1) through a limiting rod (14), and the screw rod (12) is in threaded connection with the fourth gear (9).

6. A small-sized crane with a changeable lifting hook form according to claim 1, characterized in that the non-slip mat (13) and the screw rod (12) are integrally arranged, and the bottom of the non-slip mat (13) and the bottom of the universal wheel (2) are arranged in the same horizontal plane.

7. A small crane with a changeable hook configuration according to claim 1, characterized in that the mounting plate (21) and the object (3) are rotatably mounted by means of the upright (15), and the upright (15) is arranged symmetrically with respect to the axis of the strap (16).

8. A small crane with a changeable lifting hook form as claimed in claim 1, characterized in that the movable rod (23) and the mounting plate (21) form a rotary mounting structure through the first rotary shaft (22), and the movable rod (23) and the chain (25) are arranged in parallel.

9. The small crane capable of changing the form of the lifting hook according to claim 1, wherein the number of the toothed plates (30) is 2 symmetrically arranged about the axis of the second connecting shaft (29), the toothed plates (30) and the second connecting shaft (29) are in meshed connection, and the toothed plates (30) and the object placing plates (27) are in clamping connection.