CN116553337A - A reciprocating hoist - Google Patents

Abstract

The invention discloses a reciprocating elevator, which comprises a frame component and a lifting component arranged on the frame component; the lifting assembly comprises a lift car, braking devices are arranged on two sides of the lift car, a plurality of chains are further arranged at the top end of the lift car, each chain is connected with a transmission device, the transmission devices are arranged at the top end of the frame assembly, and telescopic forks are further arranged in the lift car; the frame assembly includes a frame assembly and brake rails mounted on both sides of the frame assembly. According to the lifting machine disclosed by the invention, the automatic acquisition and the unloading of the goods are completed through the extension and retraction of the fork, and then the lifting assembly is driven by the transmission device to move so as to complete the lifting of the goods, and the whole process is automatically, quickly and effectively completed through electrical control.

Description

A reciprocating hoist

technical field

The invention relates to the technical field of hoisting equipment, in particular to a reciprocating hoist.

Background technique

The hoist is a large-scale mechanical equipment that is transported by changing the potential energy, such as mine hoist, dam crossing hoist, etc. Broadly speaking, elevators, cranes, hoists, stabilizers, cranes, hoists, etc. can all be called hoists. The hoist generally refers to large-scale mechanical equipment with high power and strong lifting capacity. It uses power machinery to drag the flexible steel wire rope and the goods to be transported to move up and down to complete the transportation process. Hoists can be divided into bucket elevators, multi-functional elevators, winding elevators, friction elevators, built-in elevators, well tower elevators and multi-rope friction elevators.

In the prior art, when the elevator completes the cargo transportation process, it is necessary to manually install the cargo on the elevator in advance, then the elevator completes the lifting of the cargo, and finally manually completes the unloading of the cargo. During the entire transportation process, the hoist cannot automatically obtain and unload the goods, thereby increasing the use of manpower and material resources and reducing the working efficiency of the hoist.

Contents of the invention

The purpose of the present invention is to provide a reciprocating hoist, which is used to solve the technical problem that the hoist in the prior art cannot realize automatic acquisition and unloading of goods.

To achieve the above purpose, one embodiment of the present invention provides a reciprocating elevator, including a frame assembly and a lifting assembly installed on the frame assembly;

The lifting assembly includes a car, with braking devices on both sides of the car, a number of chains are installed on the top of the car, each chain is connected with a transmission device, and the transmission device is installed on the top of the frame assembly. retractable forks;

The frame assembly includes a frame assembly and brake guide rails installed on both sides of the frame assembly.

In one of the preferred solutions of the present invention, guide wheel assemblies are provided on both sides of the car close to the brake guide rail, and the guide wheel assemblies include front guide wheel assemblies and side guide wheel assemblies.

In one of the preferred schemes of the present invention, the braking device includes a mounting plate and a safety gear mounted on the mounting plate, the safety gear is connected with a connecting rod, the connecting rod is connected with a spring pull rod, the spring pull rod is connected with the safety gear, and the safety gear is also connected There are brake lines.

In one of the preferred schemes of the present invention, a speed limiting device is arranged at the end of the frame assembly close to the car, and the speed limiting device includes a speed limiting pulley and a speed governor connected with the speed limiting pulley through a brake wire rope; a drag chain is also arranged on the frame assembly There is a drag chain installed in the drag chain slot, and one end of the drag chain is connected with the car.

In one of the preferred schemes of the present invention, a counterweight assembly is provided on one side of the frame assembly, and the counterweight assembly includes a mounting frame and a number of counterweights installed on the mounting frame. Several guide shoes are also arranged on the frame.

In one of the preferred solutions of the present invention, the cargo fork includes two connected telescopic rods, one of which is connected with a drive motor, the drive motor is connected with a gear shaft, the gear shaft is connected with the other telescopic rod, and the telescopic rod includes a fixed The fixed end is connected with several sections of telescopic arms.

In one of the preferred solutions of the present invention, the upper and lower ends of the brake guide rail are provided with anti-collision limit blocks.

In one of the preferred schemes of the present invention, the transmission device includes a bracket, and a motor reducer is installed on the bracket. Mounted on the driven shaft.

In one of the preferred solutions of the present invention, several travel switches are arranged on the frame assembly, and each travel switch is fixed on the frame assembly through a connecting bracket.

In summary, the beneficial effects of the present invention are:

1. The hoist of the present invention completes the acquisition of goods through the expansion and contraction of the forks, and then drives the movement of the lifting assembly through the transmission device, thereby completing the lifting of the goods. After the goods are lifted, the unloading of the goods is completed through the expansion and contraction of the forks. The hoisting of the whole hoist is automatically controlled by the electrical program, and it can be completed automatically and efficiently at high speed.

2. The reciprocating hoist of the present invention realizes the work of automatic acquisition, vertical lifting and automatic unloading of goods; at the same time, the hoist of the present invention also has the advantages of simple structure, easy operation, automatic completion of picking and unloading, fast and efficient and saving Advantages of manpower and material resources.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the present invention;

Fig. 2 is a structural schematic diagram of a frame assembly in an embodiment of the present invention;

Fig. 3 is a schematic structural view of a lifting assembly in one embodiment of the present invention;

Fig. 4 is the structural representation of transmission device in one embodiment of the present invention;

Fig. 5 is a schematic structural view of a speed limiting device in an embodiment of the present invention;

Fig. 6 is a structural schematic diagram of a counterweight assembly in an embodiment of the present invention;

Fig. 7 is a structural schematic diagram of a pallet fork in an embodiment of the present invention;

Fig. 8 is a schematic structural diagram of a travel switch in an embodiment of the present invention;

Fig. 9 is a schematic structural view of the drag chain in an embodiment of the present invention;

Fig. 10 is a schematic structural view of the hollow guide rail in the counterweight assembly in one embodiment of the present invention.

Among them, 1-frame assembly, 2-lifting assembly, 3-car, 4-brake device, 5-chain, 6-transmission device, 7-fork, 8-frame assembly, 9-brake rail, 10 -side guide wheel assembly, 11-front guide wheel assembly, 12-safety gear, 13-connecting rod, 14-spring pull rod, 15-brake line, 16-speed limiting device, 17-speed limiting pulley, 18-speed governor , 19- drag chain slot, 20- counterweight assembly, 21- mounting frame, 22- counterweight, 23- tie rod, 24- guide shoe, 25- telescopic rod, 26- drive motor, 27- gear shaft, 28- Fixed end, 29-telescopic arm, 30-anti-collision limit block, 31-bracket, 32-motor reducer, 33-main drive shaft, 34-driving wheel, 35-passive wheel, 36-passive shaft, 37-stroke Switch, 38-brake wire rope.

Detailed ways

The present invention provides a reciprocating hoist, comprising a frame assembly 1 and a lifting assembly 2 installed on the frame assembly 1 , the lifting assembly 2 is used to complete the lifting of the car 3 .

The frame assembly 1 includes a frame assembly 8 and brake guide rails 9 installed on both sides of the frame assembly 8. The frame assembly 8 is welded by steel profiles, and the frames on the same side are directly connected by bolts, and the frames on both sides are connected by several support assemblies in the middle. . The upper and lower ends of the brake guide rail 9 are provided with anti-collision limit blocks 30, and the anti-collision limit blocks 30 have a limiting effect on the car 3, so as to prevent the following car 3 from falling or being lifted to the upper and lower limit positions when it moves abnormally. Thereby cause the damage of car 3 or motor etc. The frame assembly 8 is provided with a drag chain slot 19, and a drag chain is installed in the drag chain slot 19, and one end of the drag chain is connected with the car 3, and the drag chain is used for the protection and traction of the cables during the lifting of the car 3 as follows .

The lifting assembly 2 includes a car 3, and the two sides of the car 3 are provided with a braking device 4. The braking device 4 is used to cooperate with the following speed limiting device 16, and when the car 3 overspeeds or other emergency situations occur The function of emergency brake. The braking device 4 includes a mounting plate and a safety gear 12 installed on the mounting plate, the safety gear 12 is connected with a connecting rod 13, the connecting rod 13 is connected with a spring pull rod 14, the spring pull rod 14 is connected with the safety gear 12, and the safety gear 12 also A brake line 15 is connected. The working principle of the braking device 4 is that when the car 3 exceeds the set speed of the speed limiter 18, it will touch the pressure plate inside the speed limiter 18 below and the wheels of the speed limiter 18 will be stuck. During this time of stopping, the wire rope pulls the connecting rod 13 and the spring pull bar 14 connected to each other with the safety gear 12 to trigger the clamping block of the safety gear 12, so that the safety gear 12 is clamped to realize braking. The brake line 15 is connected to the safety gear 12 on the other side, and when braking, the safety gear 12 on the other side also acts simultaneously.

Several chains 5 are also installed on the top of the car 3, and each chain 5 is connected with a transmission device 6, and the transmission device 6 is installed on the top of the frame assembly 1. Transmission device 6 comprises support 31, and motor reducer 32 is installed on support 31, and motor reducer 32 is connected with main transmission shaft 33, and main transmission shaft 33 is provided with driving wheel 34, and driving wheel 34 is connected with passive wheel 35 by chain 5 , the driven wheel 35 is installed on the driven shaft 36, and both the driven shaft 36 and the driving shaft are fixed on the bracket 31 through bearings. The transmission device 6 drives the transmission of the chain 5 through the motor reducer 32, and then drives the car 3 to be lifted steadily.

The inside of the car 3 is also provided with a retractable cargo fork 7, and the cargo fork 7 includes two connected telescopic rods 25, wherein one of the telescopic rods 25 is connected with a driving motor 26, and the driving motor 26 is connected with a gear shaft 27, and the gear shaft 27 is connected with another telescopic rod 25, and the telescopic rod 25 includes a fixed end 28, and the fixed end 28 is connected with several sections of telescopic arms 29. Wherein the fixed end 28 is installed on the frame of the car 3, and each telescopic link 25 comprises three sections of telescopic arms 29, and the cargo fork 7 drives the gear shaft 27 to rotate through the drive motor 26, and drives the rack in the telescopic arm 29 to control the movement of the cargo fork 7. Extend and retract.

A cargo detection device is installed on the end of the car 3 for picking and placing goods. When it is detected that the goods have been parked at a designated location, the car 3 receives a pick-up instruction, and then stretches out the fork 7 to pick up the goods. When the fork 7 reaches the designated position at the lower end of the cargo frame, it stops, and the car 3 lifts a certain distance, so that the fork 7 lifts the cargo frame completely away from the ground for a certain distance, and then retracts the interior of the car 3, and then lifts up to unload after the fork 7 stops firmly. point.

After arriving at the unloading point and detecting that there is no cargo at the unloading point, the pallet fork 7 extends out of the car 3 to deliver the cargo to the designated location, and the car 3 descends a certain distance, so that the cargo frame on the pallet fork 7 falls to the ground, and The pallet fork 7 is completely separated from the cargo frame, and the pallet fork 7 is withdrawn and parked in the car 3 again, ready for the next round of picking and unloading.

Both sides of the car 3 near the brake guide rail 9 are provided with guide wheel assemblies, and the guide wheel assemblies include a front guide wheel assembly 11 and a side guide wheel assembly 10 . A guide wheel assembly is provided to facilitate the movement of the car 3 .

A speed limiting device 16 is arranged on the end of the frame assembly 8 close to the car 3 , and the speed limiting device 16 includes a speed limiting pulley 17 and a speed governor 18 connected to the speed limiting pulley 17 through a brake wire rope 38 . The speed limiting device 16 plays the role of mandatory interception when the car 3 overspeeds and exceeds the limit position.

One side of the frame assembly 8 is provided with a counterweight assembly 20, the counterweight assembly 20 includes a mounting frame 21 and several counterweights 22 installed on the mounting frame 21, and one end of the mounting frame 21 near the transmission device 6 is provided with several pull rods 23, Pull rod 23 is used for installing chain, links to each other with car 3, and the part that car 3 connects with counterweight assembly 20 is also connected with chain with pull rod 23 also. The chain 5 is also provided with several guide shoes 24 on the mounting frame 21 . The configuration assembly is used for the car 3 to play a balancing role in the process of lifting and descending. The frame assembly 8 is also provided with a drag chain slot 19, and a drag chain is installed in the drag chain slot 19, and one end of the drag chain is connected with the car 3, and the drag chain plays the functions of safety guarantee and cable traction.

Several travel switches 37 are arranged on the frame assembly 8, and each travel switch 37 is fixed on the frame assembly 8 through a connecting bracket. Travel switch 37 is positioned at the lowest position and the highest position of car 3 strokes, and every place two, it is used for judging whether car 3 arrives designated pick-up point or unloading point.

Working principle and process: the hoist of the present invention completes the acquisition of goods through the expansion and contraction of the fork 7, and then drives the movement of the lifting component 2 through the transmission device 6, thereby completing the lifting of the goods, and then passes the expansion and contraction of the fork 7 after the lifting of the goods is completed. Complete the unloading of the cargo.

The hoist of the present invention utilizes the bidirectionally telescopic forks 7 installed on the car 3. After arriving at the designated pick-up point, the forks 7 are stretched out from the car 3. After obtaining the materials, the forks 7 carry the goods and return to the Inside the car 3; after arriving at the designated location for the release of goods, the goods are carried by the telescopic fork 7 out of the car 3 and placed at the designated unloading point, and then the fork 7 is retracted into the car 3 to go to the pick-up point. And so on and on.

Although the specific implementation manner of the present invention has been described in detail in conjunction with the accompanying drawings, it should not be construed as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and deformations that can be made by those skilled in the art without creative efforts still belong to the protection scope of this patent.

Claims (9)

1. A reciprocating elevator, characterized in that: comprises a frame component and a lifting component arranged on the frame component;

the lifting assembly comprises a lift car, braking devices are arranged on two sides of the lift car, a plurality of chains are further arranged at the top end of the lift car, each chain is connected with a transmission device, the transmission devices are arranged at the top end of the frame assembly, and telescopic forks are further arranged in the lift car;

the frame assembly comprises a frame assembly and brake guide rails arranged on two sides of the frame assembly.

2. A reciprocating elevator as defined in claim 1, wherein: the car is close to the both sides of braking guide rail and is provided with the leading wheel subassembly, the leading wheel subassembly includes positive leading wheel subassembly and side leading wheel subassembly.

3. A reciprocating elevator as defined in claim 1, wherein: the braking device comprises a mounting plate and a safety clamp mounted on the mounting plate, wherein the safety clamp is connected with a connecting rod, the connecting rod is connected with a spring pull rod, the spring pull rod is connected with the safety clamp, and the safety clamp is further connected with a brake cable.

4. A reciprocating elevator as defined in claim 1, wherein: the speed limiting device comprises a speed limiting pulley and a speed limiter connected with the speed limiting pulley through a brake steel wire rope; the frame assembly is further provided with a drag chain groove, a drag chain is arranged in the drag chain groove, and one end of the drag chain is connected with the car.

5. A reciprocating elevator as defined in claim 1 or 4, wherein: one side of frame subassembly is provided with the counter weight subassembly, the counter weight subassembly includes the mounting bracket and installs a plurality of balancing weights on the mounting bracket, the one end that the mounting bracket is close to transmission is provided with a plurality of pull rods, still is provided with a plurality of guide shoes on the mounting bracket.

6. A reciprocating elevator as defined in claim 1, wherein: the fork comprises two telescopic rods connected with each other, wherein a driving motor is connected to one telescopic rod, the driving motor is connected with a gear shaft, the gear shaft is connected with the other telescopic rod, the telescopic rod comprises a fixed end, and the fixed end is connected with a plurality of sections of telescopic arms.

7. A reciprocating elevator as defined in claim 1, wherein: and anti-collision limiting blocks are arranged at the upper end and the lower end of the brake guide rail.

8. A reciprocating elevator as defined in claim 1, wherein: the transmission device comprises a support, a motor reducer is mounted on the support, the motor reducer is connected with a main transmission shaft, a driving wheel is arranged on the main transmission shaft and is connected with a driven wheel through a chain, and the driven wheel is mounted on the driven shaft.

9. A reciprocating elevator as defined in claim 1, wherein: the frame assembly is provided with a plurality of travel switches, and each travel switch is fixed on the frame assembly through a connecting frame.