CN208218286U - A kind of Novel hoisting device - Google Patents

Abstract

The utility model discloses a novel hoisting device, which relates to the technical field of hoisting equipment, comprising a shell, a lead screw, a reel, a gear, a motor, a pulley tensioning device, a small synchronous pulley, a large synchronous pulley, and a fixed plate; Driven by the motor, the torque output by the motor is sequentially transmitted to the small synchronous pulley, the large synchronous pulley, the gear, and the reel, and the weight is lifted and lowered by the rotation of the reel. There are threads inside the reel, which cooperate with the lead screw, and the lead screw is fixed. When the reel rotates, it moves horizontally on the lead screw to ensure that the position of the steel wire rope remains unchanged. The utility model can effectively reduce the radial size of the electric hoist, solve the problem of serious wear of the steel wire rope, avoid the problem of messy ropes when tilted and inclined, greatly reduce the perforation area of the steel wire rope on the box body, and reduce the Dust improves the stability and life of the electric hoist.

Description

A new type of lifting device

technical field

The utility model relates to the technical field of lifting equipment, in particular to a novel lifting device.

Background technique

The traditional new lifting devices include electric hoists or balancers, which are widely used in the lifting, lowering, and translational handling of heavy objects. They can reduce labor intensity and improve production efficiency. They are essential tools for improving working conditions. Places such as assembly lines, warehouses and docks. As modern industry puts forward higher and higher requirements for mechanical equipment in terms of vibration and noise, high precision, high power-to-weight ratio, intelligence and safety, the design of lifting equipment increasingly reflects the low vibration and noise, high response Fast speed, precise action, easy operation, convenient maintenance, high space utilization, easy to realize the requirements of automatic operation.

The existing new lifting device generally consists of a motor, a planetary gear reducer, and a reel to form a transmission system. The motor and the reducer are arranged on both sides of the reel, and are connected by a coupling inside the reel, and then the reel is used to achieve heavy lifting. The lifting and lowering of objects. Because this new type of lifting device is driven by a planetary gear reducer, the overall weight is heavy. In addition, the arrangement of the motor and reducer of the existing new lifting device results in a large radial dimension of the entire new lifting device, which occupies a lot of space and is not conducive to transportation, installation, disassembly, maintenance and other work. In addition, the wire rope of the existing electric hoist passes through the winding system and the pulley after repeated bending and stretching, and rubs against the drum groove and the pulley, resulting in serious wear and tear. The normal operation of the electric hoist.

Utility model content

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the utility model provides a novel hoisting device, which is used to solve the problems of the existing electric hoist with large radial dimension, serious wear and tear of steel wire ropes, and easy rope disorder.

(2) Technical solutions

A new type of lifting device, including: a side plate, a lead screw, a reel, a tail plate, a gear, a motor, a small synchronous pulley, a large synchronous pulley and a motor fixing plate; the small synchronous pulley and the motor are arranged on the motor The two sides of the fixed plate are connected through the shaft on the motor; a large synchronous pulley is arranged next to the small synchronous pulley, and the small synchronous pulley is connected to the large synchronous pulley through a synchronous belt transmission. There is also a pulley tensioning device next to the synchronous belt; the large synchronous pulley is connected through one end of the gear inside the motor fixing plate, and an electromagnet for safety protection is provided beside the gear for the large synchronous pulley. braking; the gear is adjacent to the reel and meshes with the first gear on the reel, the other end of the gear is connected to an encoder fixing plate and an encoder, and the encoder fixing plate is connected to the housing through screws connection; the reel is connected with the lead screw through its internal inner ring thread structure, and the lead screw is fixed by the lead screw fixing piece embedded in the lead screw, and the lead screw fixing piece and the tail plate pass through threaded connection to ensure that the lead screw is fixed; it also includes bearings and limit pins. The limit disc is threadedly connected with the limit pin, and the limit pin extends and passes through the tail plate; the tail end of the reel is also provided with a wire rope pressure plate, and there is a gap between the reel and the wire rope pressure plate. There is a reel spacer; the steel wire rope pressing plate and the reel spacer are connected by threads and inserted into the reel groove to realize the tightness of the steel wire rope.

The new lifting device uses the motor to drive the small synchronous pulley to rotate, the small synchronous pulley drives the large synchronous pulley and the gear to rotate, and the gear drives the reel to rotate.

The reel includes gears and rope grooves. The reel has an inner thread structure inside, and the reel and the screw are matched through the inner thread structure. The lead of the helical line of the groove is consistent; the relative position of the wire rope is guaranteed to remain unchanged when the wire rope is raised and lowered; the lead screw is relatively fixed, and the reel can move axially on the lead screw.

The gear is a long spur gear shaft.

The bearings are thrust ball bearings.

Only one hole about the same size as the wire rope diameter needs to be opened on the shell for retracting and unwinding the steel wire rope, and the shell is not provided with a rope guide.

The workflow of this embodiment is as follows:

When there is no need to lift heavy objects after the motor is powered off or powered on, the motor self-locks or the electromagnet locks the large synchronous pulley to ensure that the reel is in a static state, that is, does not rotate. When working, the torque output by the motor is sequentially transmitted to the small synchronous pulley, the large synchronous pulley, the gear, and the reel; the output torque is transmitted to the reel, and the reel starts to rotate at this time, realizing the lifting of the heavy object. At the same time, The reel moves horizontally along the lead screw to ensure that the relative position of the steel wire rope remains unchanged. When it is necessary to drop heavy objects, the motor only needs to reverse.

(3) Beneficial effects

The utility model provides a novel lifting device. Has the following beneficial effects:

1. The utility model is mainly decelerated by a pair of synchronous pulleys and a pair of gears. The synchronous belt transmission has no slippage during operation, the transmission is relatively accurate, and it is not easy to skip teeth; the transmission efficiency is high and the transmission ratio range is large; the cost is relatively low. It has the advantages of low weight, less space occupation, stable operation, etc., and the stability of gear transmission is also high. Through these two stages of deceleration, it can meet the transmission requirements of electric hoists. Compared with planetary reducers, this transmission mode is lighter in weight and reduces At the same time, due to the simplification of the structure, there are fewer parts, lower cost, more convenient transportation, assembly and disassembly, and the problem of large radial size of the existing electric hoist is solved.

2. In the transmission mechanism of the present utility model, the reel and the gear are integrated, and the gear and the pulley are respectively arranged on both sides of the fixed plate, and the motor is arranged on the same side of the gear, which solves the problem of the axial direction of the existing electric hoist. The problem of large size makes the overall structure very compact, which effectively saves space, makes it easier to disassemble and assemble, and is helpful for maintenance and maintenance work.

3. The utility model adopts the method of cooperating between the reel and the lead screw to ensure that the lead of the thread at the joint between the reel and the lead screw is consistent with the lead of the helical line of the reel rope groove, and at the same time fix the lead screw. When working, the reel The cylinder can move axially on the lead screw while rotating, so as to ensure that the relative position of the wire rope remains unchanged during lifting, and realize vertical lifting at the same position, so the wire rope winding system and pulleys can be omitted, and the structure is simplified. , also reduces the friction between the wire rope and the rope groove, avoids the phenomenon of wire rope wear and disorder caused by the slanting and hanging of the traditional electric hoist during work, greatly increases the service life of the wire rope, and reduces the frequency of replacement , making the lifting material more stable and safer.

Description of drawings

Fig. 1 is a partial sectional structural schematic diagram of a novel hoisting device of the present invention;

Fig. 2 is a structural schematic diagram of the second half of a novel hoisting device of the present utility model;

Fig. 3 is the wire rope compaction structure of a kind of novel hoisting device of the present utility model;

Fig. 4 is the reel part of a kind of novel hoisting device of the present utility model;

Fig. 5 is a wire rope pressing part of a novel hoisting device of the present utility model;

The numbers in the figure are: 1: shell, 2: lead screw, 3: reel, 4: tail plate, 5: encoder, 6: encoder fixing plate, 7: gear, 8: electromagnet, 9: motor, 10 : Pulley tensioning device, 11: Small synchronous pulley, 12: Large synchronous pulley, 13: Motor fixing plate, 14: Limiting plate, 15: Bearing, 16: Screw fixing piece, 17: Limiting pin, 18: Wire rope pressure plate, 19: Drum spacer, 20: Timing belt.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1-5, the utility model provides a technical solution:

A new type of lifting device, including: side plate 1, lead screw 2, reel 3, tail plate 4, gear 7, motor 9, small synchronous pulley 11, large synchronous pulley 12 and motor fixing plate 13; Small synchronous pulley 11 and motor 9 are located at both sides of motor fixed plate 13, and are connected through the shaft on the motor 9; The side of described small synchronous pulley 11 is provided with large synchronous pulley 12, and described small synchronous belt The pulley 11 is connected with the large synchronous pulley 12 through a synchronous belt 20 transmission, and the pulley tensioning device 10 is also provided beside the synchronous belt 20; One end is through and connected, and an electromagnet 8 for safety protection is provided next to the gear 7, which is used for braking the large synchronous pulley 12; The other end of the gear 7 is connected to an encoder fixing plate 6 and an encoder 5, and the encoder fixing plate 6 is connected to the housing 1 through screws; the reel 3 is connected to the The lead screw 2 is mated and connected, and the lead screw 2 is fixed by being embedded in the lead screw 2 by the lead screw fixing piece 16. The lead screw fixing piece 16 is threadedly connected with the tail plate 4 to ensure that the lead screw is fixed. ; Also includes bearing 15, limit pin 17, the front end of the leading screw 2, the inner side of the motor fixing plate 13 is also connected to the limit plate 14 through threaded fit, the limit plate 14 is matched with the bearing 15, the The limit plate 14 is threadedly connected with the limit pin 17, and the limit pin 17 extends and runs through the tail plate 4; The steel wire rope pressing plate 18 is also provided with a reel spacer 19; the steel wire rope pressing plate 18 and the reel spacer 19 are connected by threads, and are snapped into the reel groove to realize the compression of the steel wire rope.

The novel hoisting device is that the motor 9 drives the small synchronous pulley 11 to rotate, and the small synchronous pulley 11 drives the large synchronous pulley 12 and the gear 7 to rotate together, and the gear 7 drives The reel 3 rotates.

The reel 3 includes a gear and a rope groove, and the reel 3 has an inner thread structure inside, and the reel 3 and the screw 2 are matched through the inner thread structure, and the reel 3 is internally threaded. The lead is consistent with the lead of the helical line of the outer rope groove; the relative position of the wire rope is guaranteed to remain unchanged when the wire rope goes up and down; the lead screw 2 is relatively fixed, and the reel 3 can move axially on the lead screw 2 .

The gear 7 is a long spur gear shaft.

The bearing 15 is a thrust ball bearing.

Only one hole that is about the same size as the diameter of the steel wire rope needs to be opened on the shell 1 for retracting and unwinding of the steel wire rope, and the shell 1 is not provided with a rope guide.

The workflow of this embodiment is as follows:

When there is no need to lift heavy objects after the motor 9 is powered off or powered on, the motor 9 self-locks or the electromagnet 9 locks the large synchronous pulley 12 to ensure that the reel 3 is in a static state, that is, does not rotate. When working, the torque output by the motor 9 is transmitted to the small synchronous pulley 11, the large synchronous pulley 12, the gear 7, and the reel 3 in sequence; During the lifting of the heavy object, the reel moves horizontally along the lead screw to ensure that the relative position of the wire rope is unchanged. When the heavy object needs to be lowered, the motor 9 only needs to reverse.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. any such actual relationship or order exists between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (3)

1. a kind of Novel hoisting device, it is characterised in that: include: shell (1), lead screw (2), reel (3), tailgate (4), gear (7), motor (9), small synchronous pulley (11), big synchronous pulley (12) and motor fixing plate (13)；The small synchronous pulley (11) two sides of motor fixing plate (13) are set to motor (9), and by the axis on motor (9) through connection；The small synchronization It is provided with beside belt wheel (11) big synchronous pulley (12), the small synchronous pulley (11) passes through with the big synchronous pulley (12) Synchronous belt (20) transmission connection, the synchronous belt (20) is other to be additionally provided with belt pulley tensioning device (10)；The big synchronous pulley (12) With one end of the gear (7) on the inside of motor fixing plate (13) through being connected, the electricity for safeguard protection is equipped with by the gear (7) Magnet (8)；The gear (7) is meshed close to the reel (3) and with the first gear on reel (3), and the gear (7) is another One end is connected with encoder fixed plate (6) and encoder (5), and the encoder fixed plate (6) passes through screw and shell (1) phase Connection；The reel (3) is cooperatively connected by its internal inner ring helicitic texture and the lead screw (2), and the lead screw (2) is by silk It is fixed in thick stick fixinig plate (16) insertion lead screw (2), the lead screw fixinig plate (16) is connected with the tailgate (4)；Also wrap Bearing (15), limit bolt (17) have been included, has also been connected with limit on the inside of lead screw (2) front end, motor fixing plate (13) Disk (14), the position-arresting disk (14) match with the bearing (15), and the position-arresting disk (14) is connected with the limit bolt (17), the limit bolt (17) extends through the tailgate (4)；Reel (3) tail end is additionally provided with wirerope pressing plate (18), reel gasket (19) are additionally provided between the reel (3) and the wirerope pressing plate (18)；

The Novel hoisting device is that small synchronous pulley (11) rotation, the small synchronous pulley are driven with the motor (9) (11) the big synchronous pulley (12) and the gear (7) cooperation rotation, the gear (7) is driven to drive the reel again (3) it rotates.

2. a kind of Novel hoisting device according to claim 1, which is characterized in that the reel (3) include gear and Rope groove, the reel (3) is internal to have inner ring helicitic texture, and the reel (3) and the lead screw (2) pass through inner ring helicitic texture It matches, reel (3) inside lead is consistent with the outside rope groove lead of helix；The lead screw (2) is relatively fixed, described Reel (3) can axially move on the lead screw (2).

3. a kind of Novel hoisting device according to claim 1 or 2, which is characterized in that the gear (7) is long spur gear Axis.