CN210150602U

CN210150602U - Trolley for crane

Info

Publication number: CN210150602U
Application number: CN201920984738.4U
Authority: CN
Inventors: 羊依林; 杨东华; 米建国; 汤继明
Original assignee: Sichuan Pang Yuan Mechanical Engineering Co Ltd
Current assignee: Sichuan Pang Yuan Mechanical Engineering Co Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-03-17
Anticipated expiration: 2029-06-27

Abstract

The utility model discloses a trolley for a crane, which comprises a trolley plate, a driving device for driving the trolley plate to move, a traction device for drawing goods to move and a braking device for braking the trolley, wherein the trolley plate is used for placing a fixed driving device, the traction device and the braking device; the driving device comprises a driving motor and a driving wheel which is connected with the driving motor in a rotating mode, the traction device comprises a traction motor and a lifting rotary drum which is connected with the traction motor in a rotating mode, the braking device comprises a lifting and contracting rod and a braking plate, two ends of the lifting and contracting rod are respectively connected with a car plate close to the end of the track and the braking plate, the lifting and contracting rod is a hydraulic rod, in the vertical direction, the contraction length of the lifting and contracting rod is smaller than the distance between the car plate and the track, and the extension length of the lifting and contracting rod is larger than the distance between the car plate and the track. The trolley for the crane provided by the utility model can rapidly brake the trolley, thereby improving the safety of the trolley; the trolley has the advantages of simple structure, obvious effect, and good economical efficiency and practicability.

Description

Trolley for crane

Technical Field

The utility model relates to a running gear field of hoist particularly, relates to a dolly for hoist.

Background

The crane is a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects within a certain range, and is also called a crown block, a navigation crane and a crane. The hoisting equipment has the working characteristics of intermittent movement, namely corresponding mechanisms for taking materials, transporting, unloading and the like in one working cycle alternately work, so that the development and the use of the crane in the market are more and more extensive; the crane is matched with steel wire ropes of various types including phosphated coating steel wire ropes, galvanized steel wire ropes and smooth steel wire ropes; cranes are widely used in today's applications in the construction field and in the field of overhead goods transport.

The trolley of the crane is a device which moves linearly along a sliding chute on a main beam of the crane when in work; the trolley reaches an accurate position to realize the transportation of the articles; wheels for sliding are arranged on the trolley, and the wheels are arranged on a trolley frame of the trolley through axles; the running safety of the trolley is more important.

In prior art, the dolly degree of rocking is not big, but the hoist and mount is consequently in the big state of rocking of range at the heavy object of dolly below, and this greatly reduced the safety in utilization of this hoist, the dolly is under the state of braking simultaneously, and the drive wheel production that easily appears produces small slip, and then makes the displacement range of lower extreme article very big, and it is not accurate not only to produce the couple arrival position easily, also easily produces the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

For solving the problem that exists among the above-mentioned, the utility model provides a dolly for hoist can carry out the rapid braking to the dolly, reduces the braking distance of dolly, and then reduces rocking of goods, improves the holistic security of dolly. The utility model adopts the technical proposal that:

a trolley for a crane comprises a trolley plate, a driving device for driving the trolley plate to move, a traction device for drawing goods to move and a braking device for braking the trolley, wherein the trolley plate is used for placing and fixing the driving device, the traction device and the braking device; the driving device comprises a driving motor and a driving wheel which is connected with the driving motor in a rotating mode, the traction device comprises a traction motor and a lifting rotary drum which is connected with the traction motor in a rotating mode, the braking device comprises a lifting and contracting rod and a braking plate, two ends of the lifting and contracting rod are respectively connected with a car plate close to the end of the track and the braking plate, the lifting and contracting rod is a hydraulic rod, in the vertical direction, the contraction length of the lifting and contracting rod is smaller than the distance between the car plate and the track, and the extension length of the lifting and contracting rod is larger than the distance between the car plate and the track.

By adopting the technical scheme, the trolley moves on the track under the action of the driving device, the telescopic rod is in a contraction state at the moment, the brake plate part is in contact with the track, the driving motor stops working after the trolley reaches the preset position, the braking device is started to brake the trolley, the telescopic rod is changed into an extension state by the contraction device in the starting process of the braking device, the brake plate is in contact with the track, the trolley is braked through sliding friction, or the trolley is upwards supported, so that the driving wheel is separated from the track to rapidly brake the trolley, goods are lifted or put down through the traction device at the moment, the driving motor, the traction motor and the hydraulic rod on the trolley are connected with the power supply and the control device in the control room, and the control device sends instructions to control the operation and the stop of the three; the scheme can realize the rapid braking of the trolley, so that the stopping position of the trolley is more accurate, and the operation of corresponding operators below is facilitated; meanwhile, when the trolley moves to a small position at high altitude, goods dragged by the lower lifting hook can correspondingly move to a large position, and the small redundant movement of the trolley during braking can be caused, so that the trolley can be quickly braked by the braking plate, the above conditions are avoided, and the safety of the crane is improved; the traction device of the crane can be ensured to further improve the safety of the crane due to the fact that the driving wheel slides forwards and backwards in the working process.

Preferably, the two ends of the brake plate extend out of the vehicle plate, and the gravity center position of the brake device is arranged in the middle position of the vehicle plate in the running direction of the trolley; the gravity center of the trolley is located at the center of the vehicle plate, so that the condition that the trolley turns on the side is prevented, and the stability of the trolley is improved.

Preferably, in the running direction of the trolley, the traction device and the driving device are respectively positioned at two sides of the braking device; the traction device and the driving device are provided with corresponding components with large weight, and in order to further improve the stability of the trolley, the traction device and the driving device are arranged on two sides of the braking device, so that the gravity center of the trolley is reasonable, the braking device is transversely arranged on the trolley, and the traction device and the driving device are respectively arranged at the front end and the rear end of the trolley.

Preferably, the driving motor is connected with the front wheel or the rear wheel of the trolley in a rotating way through the axle; the trolley is driven by two wheels, so that corresponding components driven by four wheels are reduced, and the overall economy of the trolley is improved.

Preferably, the telescopic rod comprises two sections of supporting rods, the two sections of supporting rods are hinged with each other, and the non-hinged ends of the two sections of supporting rods are respectively connected with the end of the vehicle plate close to the track and the brake plate; in different schemes, the lifting and shrinking rod can also use a single hydraulic rod form, and under the condition of considering economy and practicability, the lifting and shrinking rod is selectively arranged according to the working environment such as the quality of goods needing to be lifted.

Preferably, the brake plate is movably connected with the telescopic rod; the brake plate can be worn in work, after the brake plate is used for many times, the brake plate is taken down, the brake plate can be continuously used after being replaced, the telescopic rod can be used for many times, and the economy of the whole trolley is improved.

The utility model has the advantages that:

(1) the trolley for the crane provided by the utility model can rapidly brake the trolley, thereby improving the safety of the trolley;

(2) the trolley for the crane can avoid the driving wheel from slightly moving under the braking condition;

(3) the gravity center of the trolley for the crane is reasonably arranged, so that the stability of the trolley is improved;

(4) the trolley for the crane provided by the utility model has the advantages that the brake plate is convenient to replace, so that the whole trolley has better economy;

(5) the utility model provides a dolly for hoist simple structure, the effect is showing, has fine economic nature and practicality.

Drawings

Fig. 1 is a plan view of a trolley for a crane according to an embodiment of the present invention;

FIG. 2 is a front view of a trolley for a crane according to an embodiment of the present invention;

fig. 3 is a first structural schematic diagram of a braking device according to an embodiment of the present invention;

fig. 4 is a second schematic structural diagram of the braking device according to the embodiment of the present invention;

description of reference numerals:

1. turning a plate; 2. a drive motor; 3. a drive wheel; 4. a traction motor; 5. lifting the rotating drum; 6. a braking device; 7. lifting and shrinking the rod; 8. a brake plate.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1:

with reference to fig. 1 to 4, a trolley for a crane comprises a trolley plate 1, a driving device for driving the trolley plate 1 to move, a traction device for drawing goods to move and a braking device 6 for braking the trolley, wherein the trolley plate 1 is used for placing and fixing the driving device, the traction device and the braking device 6; drive arrangement includes driving motor 2 and rotates the drive wheel 3 of being connected with driving motor 2, draw gear includes traction motor 4 and rotates the promotion rotary drum 5 of being connected with traction motor 4, arresting gear 6 includes liter shrink pole 7 and braking plate 8, rise shrink pole 7 both ends and be connected with sweep 1 and the braking plate 8 that are close to the track end respectively, rise shrink pole 7 and be the hydraulic stem, in vertical direction, rise shrink pole 7 shrink length and be less than the distance between sweep 1 and the track, rise shrink pole 7 extension length and be greater than the distance between sweep 1 and the track.

In embodiment 1, the trolley moves on the track under the action of the driving device, at the moment, the telescopic rod 7 is in a contracted state, the brake plate 8 is in contact with the track, after the trolley reaches the preset position, the driving motor 2 stops working, the braking device 6 is started to brake the trolley, in the starting process of the braking device 6, the telescopic rod 7 is changed into an extended state from the contraction device, the brake plate 8 is in contact with the track, the trolley is braked through sliding friction, or the trolley is upwards supported, so that the driving wheel 3 is separated from the track, the trolley is rapidly braked, at the moment, goods are lifted or put down through the traction device, the driving motor 2, the traction motor 4 and the hydraulic rod on the trolley are connected with the power supply and the control device in the control room, and the control device sends instructions to control the operation and stop of the three; the scheme can realize the rapid braking of the trolley, so that the stopping position of the trolley is more accurate, and the operation of corresponding operators below is facilitated; meanwhile, when the trolley moves to a small position at high altitude, goods dragged by the lower lifting hook can correspondingly move to a large position, and the small redundant movement of the trolley during braking can be caused, so that the trolley can be quickly braked by the braking plate 8, the above conditions are avoided, and the safety of the crane is improved; the traction device of the crane can be ensured to further improve the safety of the crane due to the forward and backward sliding of the driving wheel 3 in the working process.

Example 2:

similar to the embodiment 1, two ends of the brake plate 8 extend out of the vehicle plate 1, and the gravity center position of the brake device 6 is arranged at the middle position of the vehicle plate 1 in the running direction of the trolley; in the running direction of the trolley, the traction device and the driving device are respectively positioned at two sides of the braking device 6.

In the embodiment 2, the scheme can enable the gravity center of the trolley to be located at the center of the vehicle plate 1, prevent the trolley from turning over, and provide the stability of the trolley; the traction device and the driving device are provided with corresponding components with large weight, and in order to further improve the stability of the trolley, the traction device and the driving device are arranged on two sides of the braking device 6, so that the gravity center of the trolley is reasonable, the braking device 6 is transversely arranged on the trolley, and the traction device and the driving device are respectively arranged at the front end and the rear end of the trolley.

Example 3:

similar to the embodiment 1, the difference is that the driving motor 2 is connected with the front wheel or the rear wheel of the trolley in a rotating way through the axle; the lifting and shrinking rod 7 comprises two sections of supporting rods which are hinged with each other, and the non-hinged ends of the two sections of supporting rods are respectively connected with the end of the vehicle plate 1 close to the track and the brake plate 8; the brake plate 8 is movably connected with the telescopic rod 7.

In the embodiment 3, the trolley is driven by a two-wheel drive, so that corresponding components of a four-wheel drive are reduced, and the overall economy of the trolley is improved; in different schemes, the telescopic rod 7 can also use a single hydraulic rod form, and under the condition of considering economy and practicability, the selective setting can be carried out according to the working environment such as the quality of goods needing to be lifted; the brake plate 8 is worn in work, after the car is used for many times, the brake plate 8 is taken down, the brake plate 8 can be continuously used after being replaced, the telescopic rod 7 can be used for many times, and the economy of the whole car is improved.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The trolley for the crane is characterized by comprising a trolley plate, a driving device for driving the trolley plate to move, a traction device for drawing goods to move and a braking device for braking the trolley, wherein the trolley plate is used for placing and fixing the driving device, the traction device and the braking device; the driving device comprises a driving motor and a driving wheel which is connected with the driving motor in a rotating mode, the traction device comprises a traction motor and a lifting rotary drum which is connected with the traction motor in a rotating mode, the braking device comprises a lifting and contracting rod and a braking plate, two ends of the lifting and contracting rod are respectively connected with a car plate close to the end of the track and the braking plate, the lifting and contracting rod is a hydraulic rod, in the vertical direction, the contraction length of the lifting and contracting rod is smaller than the distance between the car plate and the track, and the extension length of the lifting and contracting rod is larger than the distance between the car plate and the track.

2. The trolley as claimed in claim 1, wherein the brake plate is extended from both ends thereof to form a platform, and the center of gravity of the brake device is located at a central position of the platform in the direction of the trolley.

3. Trolley according to claim 2, characterized in that the traction means and the drive means are located on either side of the braking means in the direction of trolley travel.

4. The trolley according to claim 1 or 3, wherein the driving motor is rotatably connected to the front wheel or the rear wheel of the trolley through an axle.

5. The trolley for cranes according to claim 1, wherein the telescopic lifting/lowering rod comprises two sections of struts, the two sections of struts are hinged to each other, and the non-hinged ends of the two sections of struts are connected to the deck end close to the track and the brake plate, respectively.

6. The trolley for cranes according to claim 5, characterized in that the brake plate is movably connected to the telescopic rod.