CN220467344U - High-performance rail gnawing prevention electric single-beam crane - Google Patents

Abstract

The utility model relates to the technical field of single-beam cranes, in particular to a high-performance rail gnawing prevention electric single-beam crane. The technical proposal comprises: including hoist body frame, crossbeam track and electric hoist, the crossbeam track is installed between the hoist body frame, installs the electric hoist on the crossbeam track, and the electric hoist lower extreme is fixed with the lifting hook through the rope, installs the rail wheel on the crossbeam track, installs the mounting bracket between the rail wheel, installs the walking motor on the mounting bracket and with rail wheel corresponding position, and the electric hoist upper end is fixed with the link, and the link upper end is fixed in the mounting bracket upper end, and the mounting bracket upper end is fixed with the gantry, just is located crossbeam track top between the hoist body frame and is fixed with supporting beam. According to the utility model, in the initial stage of lifting the material, the supporting plate is pressed downwards, so that the supporting beam bears the load, the downward pressure on the beam rail is reduced, the rail biting of the beam caused by overweight in the initial stage of lifting is avoided, and the operation safety is ensured.

Description

High-performance rail gnawing prevention electric single-beam crane

Technical Field

The utility model relates to the technical field of single-beam cranes, in particular to a high-performance rail gnawing prevention electric single-beam crane.

Background

A single beam crane is a common lifting device, and is generally composed of a beam and a supporting beam which span over a working area, and the working principle of the single beam crane is that a hoist mechanism or an electric hoist of the crane is driven by a motor to hoist and move goods to a designated position.

In the process of lifting by crane, the initial stage of lifting by crane, the goods lifts by crane the initial stage from stationary state, and it lifts by crane the overweight condition of acceleration that exists, can lead to the rail wheel to produce great down force this moment, its effort is greater than the gravity that the goods was originally saved far away, consequently the condition of gnawing the rail appears easily, simultaneously because the rail wheel is circular structure, its bottom is less with orbital area of contact, consequently when overweight pushes down, the phenomenon of gnawing the rail appears more easily, consequently need design a structure that carries out auxiliary stay at the initial stage of lifting by crane, avoid appearing above-mentioned problem.

Disclosure of Invention

The utility model aims to solve the problems in the background technology and provides a high-performance rail gnawing prevention electric single-beam crane.

The technical scheme of the utility model is as follows: the utility model provides a high performance prevents gnawing rail electronic monospar hoist, includes hoist body frame, crossbeam track and electric hoist, crossbeam track installs between the hoist body frame, install the electric hoist on the crossbeam track, the electric hoist lower extreme is fixed with the lifting hook through the rope, install the rail wheel on the crossbeam track, install the mounting bracket between the rail wheel, install the walking motor on the mounting bracket and with rail wheel corresponding position, electric hoist upper end is fixed with the link, the link upper end is fixed at the mounting bracket upper end, the mounting bracket upper end is fixed with the portal frame, be fixed with the supporting beam between the hoist body frame and be located crossbeam track top, just be located crossbeam track top in the portal frame and be provided with supplementary bearing assembly.

Preferably, the auxiliary bearing assembly comprises a supporting plate and a threaded rod, wherein the supporting plate is movably installed in the door-shaped frame and located above the supporting beam, the threaded rod is rotatably connected to the middle position of the top of the door-shaped frame, and the lower end of the threaded rod penetrates through the supporting plate and is in threaded connection with the supporting plate.

Preferably, both sides of the upper end of the door-shaped frame are respectively fixed with an outer side plate, the bottoms of the outer side plates are respectively fixed with a pair of guide rods, the bottoms of the guide rods penetrate through the supporting plate and are in sliding connection with the supporting plate, and the length of the threaded rod is the same as that of the guide rods.

Preferably, a servo motor is mounted at the upper end of the door-shaped frame and at a position corresponding to the threaded rod, and the upper end of the threaded rod extends through the door-shaped frame and is fixed on the output end of the servo motor.

Preferably, the bottom of the supporting plate is fixed with a buffer plate, and the buffer plate is made of elastic rubber materials and can buffer the support.

Preferably, a gap exists between the bottom of the threaded rod and the supporting beam, the height of the gap is smaller than the thickness of the supporting plate, the bottom of the threaded rod is prevented from contacting the upper end of the supporting beam, the threaded rod can slide normally, and the supporting plate is prevented from sliding from the gap.

Compared with the prior art, the utility model has the following beneficial technical effects: at the initial stage of lifting by crane of material, utilize the downward roof pressure of backup pad, make the supporting beam bearing, reduce the crossbeam track and receive the down force, avoid lifting by crane the overweight crossbeam that leads to of initial stage and gnaw the rail, guarantee operation safety.

Drawings

FIG. 1 is a schematic view of the front appearance structure of the present utility model;

FIG. 2 is a schematic view of a combination structure of a door-shaped frame and a supporting plate according to the present utility model;

FIG. 3 is a schematic view of the internal structure of the portal frame of the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.

Reference numerals: 1. a crane main frame; 2. a beam rail; 21. a rail wheel; 22. a mounting frame; 23. a walking motor; 3. an electric hoist; 31. a connecting frame; 4. a lifting hook; 5. a support beam; 6. a door-shaped frame; 61. a support plate; 62. a buffer plate; 63. a threaded rod; 64. a servo motor; 65. an outer edge plate; 66. a guide rod.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

Examples

As shown in fig. 1-4, the high-performance rail gnawing prevention electric single-beam crane provided by the utility model comprises a crane main frame 1, beam rails 2 and electric hoists 3, wherein the beam rails 2 are arranged between the crane main frames 1, the electric hoists 3 are arranged on the beam rails 2, lifting hooks 4 are fixed at the lower ends of the electric hoists 3 through ropes, rail wheels 21 are arranged on the beam rails 2, mounting frames 22 are arranged between the rail wheels 21, travelling motors 23 are arranged on the mounting frames 22 and at positions corresponding to the rail wheels 21, connecting frames 31 are fixed at the upper ends of the electric hoists 3, the upper ends of the connecting frames 31 are fixed at the upper ends of the mounting frames 22, portal frames 6 are fixed at the upper ends of the mounting frames 22, supporting beams 5 are fixed between the crane main frames 1 and above the beam rails 2, and auxiliary bearing assemblies are arranged in the portal frames 6 and above the beam rails 2.

The auxiliary bearing assembly comprises a supporting plate 61 and a threaded rod 63, wherein the supporting plate 61 is movably installed in a door-shaped frame 6 and is located above a supporting beam 5, the threaded rod 63 is rotatably connected to the middle position of the top of the door-shaped frame 6, the lower end of the threaded rod 63 penetrates through the supporting plate 61 and is in threaded connection with the supporting plate 61, two sides of the upper end of the door-shaped frame 6 are both fixedly provided with outer plates 65, the bottoms of the outer plates 65 are both fixedly provided with a pair of guide rods 66, the bottoms of the guide rods 66 penetrate through the supporting plate 61 and are slidably connected with the supporting plate 61, the length of the threaded rod 63 is the same as that of the guide rods 66, a servo motor 64 is installed at the upper end of the door-shaped frame 6 and corresponds to the threaded rod 63, the upper end of the threaded rod 63 extends through the door-shaped frame 6 and is fixed to the output end of the servo motor 64, a buffer plate 62 is fixed to the bottom of the supporting plate 61, the buffer plate 62 is made of elastic rubber material, a gap exists between the bottom of the threaded rod 63 and the supporting beam 5, the gap height is smaller than the thickness of the supporting plate 61, the driving of the servo motor 64 is utilized to drive the threaded rod 63 to rotate, and meanwhile the guide rods 66 are utilized to guide the guide rods 66 to move up and down.

In this embodiment, the whole device is connected to an external power supply, then the cargo is fixed by the lifting hook 4, and then the cargo is lifted by the electric hoist 3, in this process, the cargo is lifted from a static state, an acting force greater than the weight of the cargo needs to be provided, so that the rail wheel 21 applies a larger pressure to the beam rail 2, at this time, the driving of the servo motor 64 can be utilized to drive the threaded rod 63 to rotate, and meanwhile, the support plate 61 can move downwards by utilizing the guiding of the guide rod 66 until the lower end of the support plate 61 abuts against the upper end of the support beam 5, so that the pressure applied to the beam rail 2 in the initial stage of lifting can be shared by the support beam 5, and the bottom area of the support plate 61 is larger, so that the pressure borne by the beam rail 2 can be greatly reduced due to the fact that the buffer plate 62 is arranged at the bottom, the purpose of protecting the beam rail 2 is achieved, the situation that the rail is gnawing is avoided, and meanwhile, when the horizontal movement of the material needs to be performed, the reverse rotation of the output end of the servo motor 64 can be utilized to drive the support plate 61 to move upwards, so that the support plate 61 is disconnected from the upper end of the support beam 5, and the normal horizontal movement of the cargo cannot be affected.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

Claims (6)

1. The utility model provides a high performance prevents gnawing rail electronic monospar hoist, includes hoist body frame (1), crossbeam track (2) and electric hoist (3), crossbeam track (2) are installed between hoist body frame (1), install electric hoist (3) on crossbeam track (2), electric hoist (3) lower extreme is fixed with lifting hook (4) through the rope, its characterized in that: install rail wheel (21) on crossbeam track (2), install mounting bracket (22) between rail wheel (21), install walking motor (23) on mounting bracket (22) and with rail wheel (21) corresponding position, electric hoist (3) upper end is fixed with link (31), link (31) upper end is fixed in mounting bracket (22) upper end, mounting bracket (22) upper end is fixed with portal frame (6), be fixed with supporting beam (5) between hoist body frame (1) and be located crossbeam track (2) top, just be located crossbeam track (2) top in portal frame (6) and be provided with supplementary bearing assembly.

2. The high-performance rail gnawing prevention electric single-beam crane according to claim 1, wherein the auxiliary bearing assembly comprises a supporting plate (61) and a threaded rod (63), the supporting plate (61) is movably installed in the door-shaped frame (6) and located above the supporting beam (5), the threaded rod (63) is rotatably connected to the middle position of the top of the door-shaped frame (6), and the lower end of the threaded rod (63) penetrates through the supporting plate (61) and is in threaded connection with the supporting plate (61).

3. The high-performance rail gnawing prevention electric single-beam crane according to claim 2, wherein outer side plates (65) are fixed on two sides of the upper end of the portal frame (6), a pair of guide rods (66) are fixed on the bottoms of the outer side plates (65), the bottoms of the guide rods (66) penetrate through the supporting plates (61) and are in sliding connection with the supporting plates (61), and the length of the threaded rods (63) is the same as that of the guide rods (66).

4. A high performance rail gnawing prevention electric single beam crane according to claim 2, wherein a servo motor (64) is mounted at the upper end of the gantry (6) and at a position corresponding to the threaded rod (63), and the upper end of the threaded rod (63) extends through the gantry (6) and is fixed at the output end of the servo motor (64).

5. The high-performance rail gnawing prevention electric single-beam crane according to claim 2, wherein a buffer plate (62) is fixed at the bottom of the supporting plate (61), and the buffer plate (62) is made of elastic rubber materials.

6. A high performance rail gnawing prevention electric single beam crane according to claim 2, characterized in that a gap exists between the bottom of the threaded rod (63) and the supporting beam (5), and the gap height is smaller than the thickness of the supporting plate (61).