CN213171189U

CN213171189U - Mechanical height adjusting device for gantry crane

Info

Publication number: CN213171189U
Application number: CN202022136345.3U
Authority: CN
Inventors: 孙书振
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-05-11
Anticipated expiration: 2030-09-25

Abstract

The utility model discloses a portal crane mechanical type height adjusting device relates to portal crane technical field, including lifter and fixed bolster, a side fixedly connected with lug of lifter, the side draw-in groove with rectangle draw-in groove looks adaptation is seted up to a side of fixed bolster, there is the lifting wheel with hawser looks adaptation bottom of lifter through bearing swing joint. The utility model discloses a set up the lift wheel, can utilize cooperation between hawser and the lift wheel, when carrying out height control to the lifter, can utilize motor power to receive and release the hawser, utilize simple mechanical device to reach the purpose to height control, through setting up the lug, can utilize the joint nail to inject the inside in fixing clip hole, thereby make between activity card hole and the fixing clip hole by the joint, make between rectangle draw-in groove and the side draw-in groove spacing, thereby make between lifter and the fixed bolster fixed, reach the purpose of height stabilization after the adjustment height.

Description

Mechanical height adjusting device for gantry crane

Technical Field

The utility model relates to a portal crane technical field specifically is a portal crane mechanical type height adjusting device.

Background

The gantry crane is a variant of a bridge crane and is called a gantry crane [1 ]. The device is mainly used for loading and unloading outdoor goods yards, stockyards and bulk goods. The metal structure of the device is like a door-shaped frame, two support legs are arranged under a bearing main beam and can directly walk on a track on the ground, and overhanging cantilever beams can be arranged at the two ends of the main beam. The portal crane has the characteristics of high site utilization rate, large operation range, wide application range, strong universality and the like, and is widely used in port goods yards. The existing gantry crane can be used in a warehouse, the traditional gantry crane cannot adjust the height when being used, and cannot adjust according to the height memorability of the warehouse, the existing gantry crane operation system capable of adjusting the height is complex, one is a hydraulic system, the lifting and falling of the gantry crane are operated and controlled through a hydraulic cylinder, the other is mechanical control, and the lifting and falling of the gantry crane are operated in a mode of loosening and fixing a bolt and a screw.

At present, most of existing gantry cranes can not be adjusted in height, and the gantry cranes capable of adjusting in height need to be assisted by a hydraulic system, and need to additionally design a matched hydraulic system or adjust by a bolt screw, so that the bolt screw needs to be screwed when the gantry cranes are adjusted, and great effort is required to be taken when the gantry cranes are adjusted, and therefore, a mechanical height adjusting device of the gantry cranes is needed, and a user can be helped to adjust the height of the gantry cranes more conveniently and more laborsavingly.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a gantry crane mechanical type height adjusting device has solved the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the lifting device comprises a lifting rod and a fixed support, wherein a movable box is fixedly connected to the bottom of the fixed support, a cable box is fixedly connected to one side of the top of the movable box, a cable wheel is movably connected to the inner wall of the cable box through a rotating shaft, a cable pipe is fixedly connected to the top of the cable box, a cable connected with the cable wheel is arranged in the cable pipe, the bottom of the lifting rod is movably connected with a lifting wheel matched with the cable through a bearing, one end of the cable is fixedly connected with the top of the inner wall of one side of the fixed support, an idler wheel matched with the cable is movably connected to the top of the inner wall of the other side of the fixed support, a convex block is fixedly connected to one side of the lifting rod, a rectangular clamping groove is formed in one side of the convex block, a side clamping groove matched with the rectangular clamping groove is formed in one side of the fixed support, the fixing support is provided with a fixing clamp hole matched with the movable clamp hole, and a clamping nail is inserted in the fixing clamp hole.

Optionally, the bottom of the movable box is movably connected with a track wheel through a half shaft, and a track plate is movably clamped at the bottom of the track wheel.

Optionally, the joint nail includes rectangle post and cylinder, the middle part fixed connection of columniform one end and rectangle post, the round pin nail hole has been seted up to the columniform other end, the another side fixedly connected with pull ring of rectangle post.

Optionally, the number of the rectangular slots is equal to or equal to the number of the rectangular slots, and the number of the movable clamping holes is equal to or equal to the number of the rectangular slots.

Optionally, one end of the rotating shaft penetrates through the cable box and is fixedly connected with a speed reducing wheel, the speed reducing wheel is connected with a driving wheel through belt transmission, a power motor is fixedly connected to the middle of one side face of the driving wheel, and the power motor is fixedly connected with the top of the moving box through a motor base.

Optionally, the top of the lifting rod is fixedly connected with a track rod, the side surface of the track rod is movably connected with a hoisting box through the pulley groove, the bottom of the hoisting box is movably connected with a steel wire rope, and the bottom of the steel wire rope is fixedly connected with a lifting hook.

Three beneficial effects

The utility model provides a portal crane mechanical type height adjusting device possesses following beneficial effect:

1. this portal crane mechanical type height adjusting device through setting up the lifting wheel, can utilize cooperation between hawser and the lifting wheel, when carrying out height control to the lifter, can utilize motor power to receive and release the hawser, utilizes simple mechanical device to reach the purpose to height control.

2. This portal crane mechanical type height adjusting device through setting up the lug, can utilize the joint nail to inject the inside in fixing clip hole to by the joint between messenger's activity card hole and the fixing clip hole, make between rectangle draw-in groove and the side draw-in groove spacing, thereby make between lifter and the fixed bolster fixed, reach the purpose of height stabilization after the adjustment height.

Drawings

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

FIG. 2 is a schematic view of the structure of the mobile box of the present invention;

FIG. 3 is a schematic side view of the cross-sectional structure of the lifter of the present invention;

fig. 4 is a schematic view of the three-dimensional structure of the clamping nail of the present invention.

In the figure: 1. a lifting rod; 2. a track rod; 3. a pulley groove; 4. hoisting the box; 5. a wire rope; 6. a hook; 7. a rectangular clamping groove; 8. a bump; 9. a side clamping groove; 11. a movable clamp hole; 12. clamping nails; 13. a power motor; 14. a track plate; 15. a cable tube; 16. a driving wheel; 17. a speed reducing wheel; 18. a mobile box; 19. a cable box; 20. a pin hole; 21. fixing the clamp hole; 22. fixing a bracket; 23. a motor base; 24. a rail wheel; 25. a cable; 26. a lifting wheel; 27. a cable sheave; 28. an idler pulley; 29. and (4) a pull ring.

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 to 4, the present invention provides a technical solution: a gantry crane mechanical height adjusting device comprises a lifting rod 1 and a fixed support 22, the top of the lifting rod 1 is fixedly connected with a track rod 2, the side surface of the track rod 2 is movably connected with a hoisting box 4 through a pulley groove 3, the bottom of the hoisting box 4 is movably connected with a steel wire rope 5, the bottom of the steel wire rope 5 is fixedly connected with a lifting hook 6, the bottom of the fixed support 22 is fixedly connected with a movable box 18, the bottom of the movable box 18 is movably connected with a track wheel 24 through a half shaft, the bottom of the track wheel 24 is movably clamped with a track plate 14, one side of the top of the movable box 18 is fixedly connected with a cable box 19, the inner wall of the cable box 19 is movably connected with a cable wheel 27 through a rotating shaft, one end of the rotating shaft penetrates through the cable box 19 and is fixedly connected with a speed reducing wheel 17, the speed reducing wheel 17 is connected with a driving wheel 16 through, the power motor 13 is fixedly connected with the top of the movable box 18 through a motor base 23, the top of the cable box 19 is fixedly connected with a cable pipe 15, a cable 25 connected with a cable wheel 27 is arranged inside the cable pipe 15, the bottom of the lifting rod 1 is movably connected with a lifting wheel 26 matched with the cable 25 through a bearing, one end of the cable 25 is fixedly connected with the top of the inner wall of one side of the fixed support 22, the top of the inner wall of the other side of the fixed support 22 is movably connected with an idler wheel 28 matched with the cable 25, one side of the lifting rod 1 is fixedly connected with a lug 8, one side of the lug 8 is provided with a rectangular clamping groove 7, one side of the fixed support 22 is provided with a side clamping groove 9 matched with the rectangular clamping groove 7, the bottom wall of the rectangular clamping groove 7 is provided with a movable clamping hole 11, the rectangular clamping grooves 7 are provided with a plurality of rectangular clamping grooves 7, the rectangular clamping grooves 7 are distributed, offer the fixing clip hole 21 with activity card hole 11 looks adaptation on the fixed bolster 22, the inside grafting in fixing clip hole 21 has joint nail 12, joint nail 12 includes rectangle post and cylinder, the middle part fixed connection of cylindrical one end and rectangle post, and pin hole 20, another side fixedly connected with pull ring 29 of rectangle post have been seted up to the cylindrical other end.

When in use, if the height of the gantry crane needs to be adjusted, firstly, the lifting hook 6 is ensured not to be hoisted, then the pin in the pin hole 20 is pulled out, so that the limit of one end of the clamping nail 12 can be relieved, then the clamping nail 12 is pulled out by pulling the pull ring 29, the driving wheel 16 is driven to rotate by starting the power motor 13, the speed reducing wheel 17 is driven to rotate by the driving wheel 16 through the belt, so that the cable wheel 27 is driven to rotate to control the cable 25 to be retracted, the cable 25 drives the lifting wheel 26 to rotate when moving, and simultaneously, the purpose of enabling the lifting rod 1 to ascend or descend is achieved, after the height of the lifting rod 1 is adjusted, the cylinder of the clamping nail 12 is inserted into the movable clamping hole 11 again to enable the lifting rod 1 to be connected with the fixed support 22, and simultaneously, the rectangular column of the clamping nail 12 is clamped into the rectangular clamping groove 7, so that the rectangular clamping groove 7 is clamped with, the limit between the lifting rod 1 and the fixed support 22 is ensured to be firm, so that the aim of adjusting the height of the gantry crane is fulfilled.

To sum up, the utility model discloses a set up lifting wheel 26, can utilize the cooperation between hawser 25 and the lifting wheel 26, when carrying out height adjustment to lifter 1, can utilize motor power 13 to receive and release hawser 25, utilize simple mechanical device to reach the purpose to height adjustment, through setting up lug 8, can utilize joint nail 12 to inject the inside in fixing clip hole 21, thereby make between activity card hole 11 and the fixing clip hole 21 by the joint, make between rectangle draw-in groove 7 and the side draw-in groove 9 spacing, thereby make and fixed between lifter 1 and the fixed bolster 22, reach the purpose of stabilizing the height after the adjustment height.

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 utility model provides a portal crane mechanical type height adjusting device, includes lifter (1) and fixed bolster (22), its characterized in that: the bottom of the fixed support (22) is fixedly connected with a movable box (18), one side of the top of the movable box (18) is fixedly connected with a cable box (19), the inner wall of the cable box (19) is movably connected with a cable wheel (27) through a rotating shaft, the top of the cable box (19) is fixedly connected with a cable pipe (15), a cable (25) connected with the cable wheel (27) is arranged inside the cable pipe (15), the bottom of the lifting rod (1) is movably connected with a lifting wheel (26) matched with the cable (25) through a bearing, one end of the cable (25) is fixedly connected with the top of the inner wall on one side of the fixed support (22), the top of the inner wall on the other side of the fixed support (22) is movably connected with an idler wheel (28) matched with the cable (25), and one side of the lifting rod (1) is fixedly connected with a lug (8), rectangular clamping grooves (7) are formed in one side face of the protruding block (8), side clamping grooves (9) matched with the rectangular clamping grooves (7) are formed in one side face of the fixed support (22), movable clamping holes (11) are formed in the bottom wall of the rectangular clamping grooves (7), fixed clamping holes (21) matched with the movable clamping holes (11) are formed in the fixed support (22), and clamping nails (12) are inserted into the fixed clamping holes (21).

2. The mechanical height adjusting device for the gantry crane according to claim 1, wherein: the bottom of the movable box (18) is movably connected with a track wheel (24) through a half shaft, and the bottom of the track wheel (24) is movably clamped with a track plate (14).

3. The mechanical height adjusting device for the gantry crane according to claim 1, wherein: joint nail (12) are including rectangle post and cylinder, the middle part fixed connection of columniform one end and rectangle post, round pin hole (20) have been seted up to the columniform other end, another side fixedly connected with pull ring (29) of rectangle post.

4. The mechanical height adjusting device for the gantry crane according to claim 1, wherein: the rectangular clamping grooves (7) are distributed on the lug (8) at equal intervals, and the movable clamping holes (11) are equal in number and matched with the rectangular clamping grooves (7).

5. The mechanical height adjusting device for the gantry crane according to claim 1, wherein: one end of the rotating shaft penetrates through the cable box (19) and is fixedly connected with the speed reducing wheel (17), the speed reducing wheel (17) is connected with the driving wheel (16) through belt transmission, the middle part of one side face of the driving wheel (16) is fixedly connected with the power motor (13), and the power motor (13) is fixedly connected with the top of the moving box (18) through the motor base (23).

6. The mechanical height adjusting device for the gantry crane according to claim 1, wherein: the top fixed connection of lifter (1) has track pole (2), the side of track pole (2) has hoisting box (4) through this pulley groove (3) swing joint, the bottom swing joint of hoisting box (4) has wire rope (5), the bottom fixedly connected with lifting hook (6) of wire rope (5).