CN216303136U

CN216303136U - Hoisting mechanism and equipment with fixed traction rope opening

Info

Publication number: CN216303136U
Application number: CN202121754263.3U
Authority: CN
Inventors: 刘仁杰
Original assignee: Shanghai Daomi Technology Co ltd
Current assignee: Shanghai Daomi Technology Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-04-15
Anticipated expiration: 2031-07-30

Abstract

The outer wall of the roller is provided with a groove for winding and accommodating the traction rope, and the grooves are distributed spirally; the end part of the driving block extends into the groove; when the traction rope is wound and unwound, the roller is rotated, and the driving block drives the roller to synchronously axially move through the groove, so that the position of the traction rope inlet/outlet is kept unchanged. According to the utility model, the roller axially moves while rotating to take in and release the traction rope through the mutually meshed spiral grooves and the driving block on the outer wall of the roller, so that the position of the inlet/outlet of the traction rope is always fixed relative to the load end, the phenomenon of diagonal tension is avoided, the abrasion of the traction rope and the roller is reduced, and the service life and the safety are improved.

Description

Hoisting mechanism and equipment with fixed traction rope opening

Technical Field

The utility model relates to the field of winch machinery, in particular to a winch mechanism and equipment with a fixed traction rope opening.

Background

The hoisting mechanism is a device for lifting and pulling a heavy object by winding a traction rope, which is usually a wire rope or a chain, around a drum. In the rotation process of the existing hoisting mechanism, the traction rope opening can move along the axial direction of the roller along with the rotation of the roller. When the load end of the hauling rope is axially fixed (such as the hauling rope passes through a fixed guide wheel and the like), the hauling rope can generate a 'diagonal pulling' phenomenon, so that the hauling rope generates continuous abrasion between the flanging of the roller and the adjacent hauling rope on the roller, and the service life of the hauling rope can be influenced; if the situation is serious, safety accidents such as traction rope breakage can occur.

In order to avoid this phenomenon, the patent proposes a device in which the position of the exit of the traction rope is kept constant, so as to improve the use of the traction rope.

Disclosure of Invention

The utility model aims to solve the existing problems and provides a hoisting mechanism and equipment for fixing a traction rope opening.

In order to achieve the purpose, the technical scheme adopted by the utility model comprises a roller capable of rotating in the circumferential direction, wherein grooves for winding and accommodating a traction rope are formed in the outer wall of the roller, and the grooves are distributed spirally at equal intervals; the driving device also comprises at least one driving block which is fixedly arranged, and the end part of the driving block extends into the groove; when the traction rope is wound and unwound, the roller is rotated, and the driving block drives the roller to synchronously axially move through the groove, so that the position of the traction rope inlet/outlet is kept unchanged.

The driving guide mechanism comprises a connecting block arranged in the radial direction and a driving shaft arranged in the axial direction, and the driving shaft penetrates through an axial middle hole in the roller; the central shaft is connected with the driving shaft through the connecting block, the driving shaft drives the roller to rotate, and meanwhile, the roller can move axially along the driving shaft.

The motor is further included, and the motor drives the central shaft to rotate.

And a speed reducer is also arranged between the central shaft and the motor.

Wherein the central shaft transmits torque to the connecting block through the key.

Wherein the driving shaft and the roller realize axial sliding through a linear bearing.

Wherein, the axial both sides of cylinder are equipped with the connecting block respectively, and the both ends of drive shaft are connected with the connecting block respectively.

Wherein, the end of the driving shaft is connected with the positioning fixing hole of the connecting block.

The driving guide mechanism comprises two driving shafts, the two driving shafts penetrate through axial middle holes in the roller respectively, and the two driving shafts are connected with the connecting block respectively and drive the roller to rotate.

The rotary drum driving mechanism comprises a driving block, a driving roller and a frame, wherein the frame comprises a connecting plate and side plates on two sides of the connecting plate, the base of the driving block is fixed on the connecting plate, and two ends of a central shaft for driving the rotary drum to rotate are respectively rotatably connected with the two side plates through bearings.

The pull rod is further included, and two ends of the pull rod are respectively connected with the side plates; the bottom of the other driving block is fixed on the pull rod.

The utility model also provides a hoisting device which comprises any hoisting mechanism fixed at the traction rope opening. Compared with the prior art, the utility model realizes that the roller axially moves while rotating to take in and put out the traction rope by the aid of the spiral grooves and the driving blocks which are meshed with each other on the outer wall of the roller, so that the position of an inlet/outlet of the traction rope is always fixed relative to a load end, the phenomenon of diagonal tension is avoided, the abrasion of the traction rope and the roller is reduced, and the service life and the safety are improved. The driving shaft can transmit torque to the roller to rotate; the linear bearing plays a role in guiding when the roller axially moves, so that the roller stably runs; the connecting block can transmit the torque of the central shaft to the guide shaft; the frame plays the effect of whole fixed.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an embodiment of the present invention;

FIG. 3 is a diagram illustrating an initial state of an embodiment of the present invention;

FIG. 4 is a schematic view of a steel wire rope according to an embodiment of the present invention after being paid out;

referring to the attached drawings, the motor 1, the speed reducer 2, the bearing 3, the second side plate 4, the first bearing hole 4A, the second bearing hole 4B, the connecting plate 5, the first positioning notch 5A, the second positioning notch 5B, the first side plate 6, the shaft cover plate 7, the pull rod 8, the driving shaft 9, the linear bearing 10, the first connecting block 11, the first positioning fixing hole 11A, the second positioning fixing hole 11B, the second connecting block 12, the central shaft 13, the central hole 13A, the first driving block 14, the second driving block 15, the end part 15A, the roller 16, the steel wire rope 17 and the key 18.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings.

Referring to fig. 1 and 2, fig. 1 and 2 show an embodiment of the present invention, which is a hoisting mechanism with a fixed traction rope opening and is disposed in a frame. Referring to fig. 1, the frame is composed of a first side plate, a second side plate, a connecting plate at the top and a pull rod at the bottom, which are positioned at two sides; the upper ends of the first side plate and the second side plate are respectively fixedly connected with the two sides of the connecting plate through a first positioning notch and a second positioning notch, and the two ends of the pull rod are respectively fixedly connected with the lower ends of the first side plate and the second side plate. The frame described above is used for the fixation of the present embodiment.

The embodiment mainly comprises a roller and a driving block. Grooves for winding and accommodating steel wire ropes (namely traction ropes) are formed in the outer wall of the roller, and the grooves are uniformly and spirally distributed on the side face of the cylindrical roller; the overall configuration of the groove resembles a constant pitch thread structure.

The roller is driven by a motor through a driving guide mechanism to rotate, and the roller comprises two straight rod-shaped connecting blocks and two driving shafts arranged axially, which are shown in figure 2. The shaft body of the driving shaft respectively passes through two axial middle holes in the roller, the driving shaft and the middle holes of the roller realize axial sliding through a linear bearing, and the roller can axially move along the driving shaft.

The end part of the driving shaft is connected with positioning fixing holes at two ends of the connecting block, namely the connecting block arranged in the radial direction is connected with a central shaft driven by a motor to rotate, so that a driving double arm is formed. And the two connecting blocks are respectively arranged at two axial sides of the roller and are fixedly connected with the central shaft through keys. When the motor drives the central shaft to rotate, the connecting block transmits torque through the key and drives the driving shaft to rotate, and then the shaft body of the driving shaft drives the roller to rotate circumferentially; meanwhile, the roller can move axially along the driving shaft through the middle hole and the linear bearing.

Referring to fig. 2, the first side plate and the second side plate are provided with a first bearing hole site and a second bearing hole site, and the shaft body of the central shaft is rotatably connected with the first bearing hole site and the second bearing hole site through a plurality of bearings respectively.

Preferably, a speed reducer is further provided between the central shaft and the motor in the present embodiment to perform better control. The output shaft of the speed reducer is inserted into the central hole of the central shaft and transmits torque to the central shaft through the key. An electric motor. The speed reducer is installed in the outside of first curb plate, and is equipped with the axle apron on the second curb plate, and the tip of center pin is located to the axle apron to fixed its axle position.

In the embodiment, two driving blocks are arranged, the base parts of the two driving blocks are respectively fixed on the lower end surface of the connecting plate and the pull rod, and the end parts of the two driving blocks respectively extend into the grooves from two sides of the roller. Referring to fig. 3, initially, the steel cord is wound along equidistant helical grooves and received in the grooves. When the steel wire rope is wound and unwound, the motor/speed reducer can drive the central shaft to drive the driving shaft to rotate, and then the roller rotates in the circumferential direction. When the steel wire rope is paid out, the steel wire rope is separated along with the rotation of the equidistant spiral grooves, and the outlet position of the steel wire rope is axially changed relative to the roller, namely, the steel wire rope moves to the left side in figure 3.

With the rotation of the drum, the end of the fixedly arranged driving block abuts against the side wall of the groove and drives the drum to synchronously move axially in the opposite direction of the inlet/outlet position change. Because the groove engaged by the driving block on the side surface of the drum and the groove wound by the steel wire rope are the same equidistant thread, the driving block drives the drum to move axially, and the displacement of the steel wire rope outlet position changing axially is synchronous in time and opposite in direction, namely the synchronous offset is realized in the axial direction of the drum, and referring to fig. 3 and 4, the outlet position of the steel wire rope moves towards the left side relative to the drum, but because the drum moves towards the right side synchronously and equidistantly, the outlet position of the steel wire rope is always kept unchanged relative to the central shaft and the frame, and the load outside the mechanism is also always kept unchanged. If the drum rotates reversely to accommodate the wire rope, the principle is the same, and will not be described again.

The utility model also provides hoisting equipment which comprises the hoisting mechanism fixed at the traction rope opening in the embodiment.

Therefore, the embodiment can enable the inlet/outlet position of the steel wire rope to be always fixed relative to the load end, thereby avoiding the phenomenon of diagonal pulling, reducing the abrasion of the traction rope and the roller, and improving the service life and the safety.

The embodiments of the present invention have been described in conjunction with the accompanying drawings and examples, the structures of which are given by way of illustration and not limitation, and those skilled in the art can make modifications as required, and various changes and modifications can be made within the scope of the appended claims.

Claims

1. The utility model provides a fixed hoist mechanism of traction rope mouth which characterized in that: the device comprises a roller capable of rotating in the circumferential direction, wherein grooves for winding and accommodating traction ropes are formed in the outer wall of the roller, and the grooves are distributed spirally at equal intervals;

the end part of the driving block extends into the groove;

when the traction rope is wound and unwound, the roller is rotated, and the driving block drives the roller to synchronously axially move through the groove, so that the position of the traction rope inlet/outlet is kept unchanged.

2. The hoisting mechanism with fixed traction rope opening of claim 1, wherein: the driving guide mechanism comprises a connecting block and a driving shaft, and the driving shaft penetrates through an axial middle hole in the roller; the central shaft is connected with the driving shaft through the connecting block, the driving shaft drives the roller to rotate, and meanwhile, the roller can move axially along the driving shaft.

3. The hoisting mechanism with fixed traction rope opening of claim 1, wherein: the motor is further included, and the motor drives the central shaft to rotate.

4. The hoisting mechanism with fixed traction rope opening of claim 3, wherein: and a speed reducer is also arranged between the central shaft and the motor.

5. The hoisting mechanism with the fixed traction rope opening as claimed in claim 2, wherein: the central shaft transmits torque to the connecting block through the key.

6. The hoisting mechanism with the fixed traction rope opening as claimed in claim 2, wherein: the driving shaft and the roller realize axial sliding through a linear bearing.

7. The hoisting mechanism with the fixed traction rope opening as claimed in claim 2, wherein: the two axial sides of the roller are respectively provided with a connecting block, and the two ends of the driving shaft are respectively connected with the connecting blocks.

8. The hoisting mechanism with fixed traction rope opening of claim 7, wherein: the end part of the driving shaft is connected with the positioning fixing hole of the connecting block.

9. Hoisting mechanism with fixed traction rope mouth according to any of claims 2 or 5-8, characterized in that: the driving guide mechanism comprises two driving shafts, the two driving shafts penetrate through axial middle holes in the roller respectively, and the two driving shafts are connected with the connecting block respectively and drive the roller to rotate.

10. The hoisting mechanism with fixed traction rope opening of claim 1, wherein: the frame comprises a connecting plate and side plates on two sides of the connecting plate, wherein the base of the driving block is fixed on the connecting plate, and two ends of a central shaft for driving the rotary drum to rotate are respectively rotatably connected with the two side plates through bearings.

11. The hoisting mechanism with fixed traction rope opening of claim 10, wherein: the pull rod is also included, and two ends of the pull rod are respectively connected with the side plates; the bottom of the other driving block is fixed on the pull rod.

12. A hoisting device, characterized in that: hoisting mechanism comprising a traction rope mouth fixing according to any of claims 1-11.