CN111392622A

CN111392622A - Lifting device

Info

Publication number: CN111392622A
Application number: CN202010306579.XA
Authority: CN
Inventors: 蔡东高; 钱孝君; 施李佳; 吴仁山; 喻惠业
Original assignee: High Altitude Mechanical Engineering Technology Research Institute Co ltd; Shenxi Machinery Co ltd
Current assignee: High Altitude Mechanical Engineering Technology Research Institute Co ltd; Shenxi Machinery Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-07-10

Abstract

The invention discloses a lifting device, which comprises a box body provided with a rope inlet and outlet, wherein a rope wheel is arranged in the box body, a positioning block is arranged in the box body and positioned at the rope inlet and outlet, the positioning block divides the rope inlet and outlet into two routing channels, a rope groove is formed in the rope wheel, the two routing channels are in butt joint with the rope groove and positioned on the same plane, a steel wire rope enters the box body from one routing channel, and after passing around the rope wheel along the rope groove, the steel wire rope is discharged from the other routing channel, a rope blocking mechanism is arranged in the box body and positioned at the periphery of the rope wheel, and the rope blocking mechanism tightly presses and limits the. The rope blocking mechanism is adopted to act on the two side faces and the upper face of the rope wheel, the steel wire rope is ensured to be accurately embedded into the rope groove and friction force is ensured, the wrap angle range is large, the load capacity is large, the force application size of the pressing wheel can be adjusted according to the load capacity, the rope wheel is enabled to be even in stress, in addition, the steel wire rope runs in a plane, a rope dividing block does not need to be arranged, the rope arrangement is smooth, the driving efficiency is high, the service life is long, and the whole rope arrangement is small and portable.

Description

Lifting device

Technical Field

The invention relates to the technical field of elevators, in particular to a lifting device.

Background

The elevator is used as a power device of a high-altitude operation hanging basket, and has a vital function. The traditional elevator has the problem of difficulty in rope separation, because the rope inlet and the rope outlet are not on the same plane when the steel wire rope is wound on the rope wheel, a cross point exists, a rope separation block needs to be arranged at the cross point for separation, so that the friction of the steel wire rope is avoided, the arrangement of the rope separation block increases the structural complexity, and the size of the hoisting device is difficult to control. In addition, the problems of rope clamping and unsmooth rope arrangement often occur in some hoisting hoists. Therefore, there is a need to further optimize the structure of existing lifting devices to meet the use needs.

Disclosure of Invention

Based on the above, the invention provides a lifting device, which optimizes the internal rope winding mode and the transmission structure and solves the problems of difficult rope distribution and unsmooth rope arrangement of the traditional lifter.

In order to achieve the purpose, the invention adopts the following technical scheme:

a lifting device comprises a box body provided with a rope inlet and outlet, wherein a rope wheel is arranged in the box body, a positioning block is arranged in the box body and located at the rope inlet and outlet, the positioning block divides the rope inlet and outlet into two routing channels, a rope groove is formed in the rope wheel, the two routing channels are in butt joint with the rope groove and located on the same plane, a steel wire rope enters the box body from one routing channel, the steel wire rope is led out from the other routing channel after bypassing the rope wheel along the rope groove, a rope blocking mechanism is arranged in the box body and located on the periphery of the rope wheel, and the rope blocking mechanism compresses the steel wire rope and limits the steel.

Particularly, the rope blocking mechanism comprises two rope pressing assemblies correspondingly positioned on two sides of the rope wheel, each rope pressing assembly comprises a bending rod, each bending rod is hinged to the box body, a pressing wheel is arranged on each bending rod, and each pressing wheel is in contact with the steel wire rope in the corresponding rope groove.

Particularly, the upper ends of the bending rods on the two sides are connected through an adjusting assembly, the adjusting assembly comprises a spring and a connecting rod, one end of the spring is fixed on the bending rod on one side, the other end of the spring is fixed on the connecting rod, the connecting rod is fixed on the bending rod on the other side, and the length of the connecting rod is adjustable.

Particularly, the bending rod is provided with a guide wheel which is positioned at one side of the positioning block, so that the steel wire rope smoothly winds on the rope wheel after passing through the guide wheel.

In particular, the guide wheel is arranged on a hinged shaft of the bending rod and the box body.

In particular, the positioning block extends into the rope groove, but is not in contact with the groove wall, and the end part is arranged to be in transition connection with the groove bottom surface.

In particular, the bending rod is also provided with a side catch wheel.

Particularly, keep off the rope mechanism and include the last baffle that is located the top of rope sheave, go up the baffle and be the arc, and its cambered surface towards the grooving is seted up flutedly.

Particularly, the rope wheel further comprises a driving mechanism, the driving mechanism comprises a motor, a gear shaft and a reduction gear, the motor drives the gear shaft to rotate, the gear shaft is in meshing transmission with the large-diameter part of the reduction gear, and the rope wheel is in external meshing with the small-diameter part of the reduction gear.

In summary, the beneficial effects of the present invention are that, compared with the prior art, the lifting device has the following advantages:

① the rope blocking mechanism acts on the two sides and the upper surface of the rope wheel, the wrap angle range is large, the friction force is large, and the load capacity is large;

② the adjusting component can adjust the pressure according to the load capacity, so that the rope wheel is stressed evenly;

③ the steel wire rope runs in a plane, a rope dividing block is not needed, the rope arrangement is smooth, the driving efficiency is high, and the service life is long;

④ adopts straight-tooth transmission instead of the traditional worm gear structure, and can better control the volume of the device, and is small and portable.

Drawings

Fig. 1 is a schematic view of an internal structure of a lifting device according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a lifting device provided in an embodiment of the present invention.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Referring to fig. 1 and 2, the present embodiment provides a lifting device, which includes a housing 1, a rope sheave 2, a rope stopping mechanism and a driving mechanism.

Seted up business turn over rope mouth 3 on the box 1, the box 1 is interior and be located business turn over rope mouth 3 department and be provided with locating piece 4, and locating piece 4 falls into two walking channels with business turn over rope mouth 3, and rope sheave 2 sets up in box 1, has seted up rope groove 5 on the rope sheave 2, and locating piece 4 extends to in the rope groove 5, nevertheless does not contact with the cell wall, and the tip sets up to the arc with tank bottom surface transition linking.

The two routing channels are in butt joint with the rope groove 5 and are located on the same plane, the steel wire rope enters the box body 1 from one routing channel, and after the steel wire rope bypasses the rope wheel 2 along the rope groove 5, the steel wire rope is discharged from the other routing channel.

The rope blocking mechanism is arranged in the box body 1 and positioned on the periphery of the rope wheel 2 and used for pressing and limiting the steel wire rope in the rope groove 5. The rope blocking mechanism comprises two rope pressing assemblies 6 correspondingly positioned on two sides of the rope wheel 2 and an upper baffle 7 positioned above the rope wheel 2.

The rope pressing assembly 6 comprises a bending rod 8, the bending rod 8 is hinged on the box body 1, and the lower end of the bending rod 8 is preferably arranged at the hinged position. The bending rod 8 is provided with a pressing wheel 9, a guide wheel 10 and a side blocking wheel 11, the pressing wheel 9 is in contact with the steel wire rope in the rope groove 5, the guide wheel 10 is arranged at the lower end of the bending rod 8 and located on one side of the positioning block 4, meanwhile, the guide wheel 10 is arranged on a hinged shaft of the bending rod 8 and the box body 1, the steel wire rope smoothly winds the rope wheel 2 after passing through the guide wheel 10, and the side blocking wheel 11 is used for increasing the wrap angle of the rope wheel.

The upper ends of the bending rods 8 on the two sides are connected through an adjusting assembly, the adjusting assembly comprises a spring 12 and a connecting rod 13, one end of the spring 12 is fixed on the bending rod 8 on one side, the other end of the spring 12 is fixed on the connecting rod 13, the connecting rod 13 is fixed on the bending rod 8 on the other side, the length of the connecting rod 13 is adjustable, and the tight pressure of the pressing wheel 9 on the steel wire rope is set through the adjusting assembly.

The upper baffle 7 is arc-shaped, and a groove 14 is arranged on the arc surface of the upper baffle facing the rope groove 5.

The driving mechanism comprises a motor 15, a gear shaft 16 and a reduction gear 17, wherein the motor 15 drives the gear shaft 16 to rotate, the gear shaft 16 is in meshing transmission with the large-diameter part of the reduction gear 17, and the rope pulley 2 is in meshing transmission with the outside of the small-diameter part of the reduction gear 17. The motor 15 drives the gear shaft 16, and the rope pulley 2 is driven to rotate through the reduction gear 17, so that the steel wire rope on the rope pulley 2 is lifted.

In conclusion, the lifting device adopts the rope blocking mechanism to act on the two side faces and the upper face of the rope wheel, the steel wire rope is ensured to be accurately embedded into the rope groove, the friction force is ensured, the wrap angle range is large, the load capacity is large, the force application magnitude of the pressing wheel can be adjusted according to the load capacity, the rope wheel is uniformly stressed, in addition, the steel wire rope runs in one plane, a rope dividing block is not required to be arranged, the rope arrangement is smooth, the driving efficiency is high, the service life is long, and the whole lifting device is small and portable.

The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but is capable of various modifications and changes without departing from the spirit and scope of the invention, which are intended to be within the scope of the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a lifting device, is including seting up the box of business turn over rope mouth, be provided with the rope sheave in the box, its characterized in that, just be located in the box business turn over rope mouth department is provided with the locating piece, the locating piece falls into two line channels with business turn over rope mouth, the rope groove has been seted up on the rope sheave, two line channels with the rope groove butt joint just is located the coplanar, inside wire rope got into the box from a line channel, along the rope groove was walked around behind the rope sheave, go out from another line channel, just be located in the box the periphery of rope sheave is provided with and keeps off rope mechanism, keep off rope mechanism compress tightly wire rope and be restricted in the rope groove.

2. The lifting device of claim 1, wherein: the rope blocking mechanism comprises two rope pressing assemblies correspondingly positioned on two sides of the rope wheel, each rope pressing assembly comprises a bending rod, the bending rods are hinged to the box body, pressing wheels are arranged on the bending rods, and the pressing wheels are in contact with the steel wire ropes in the rope grooves.

3. A lifting device as claimed in claim 2, characterized in that: the upper ends of the bending rods on the two sides are connected through an adjusting component, the adjusting component comprises a spring and a connecting rod, one end of the spring is fixed on the bending rod on one side, the other end of the spring is fixed on the connecting rod, the connecting rod is fixed on the bending rod on the other side, and the length of the connecting rod is adjustable.

4. A lifting device as claimed in claim 3, characterized in that: the bending rod is provided with a guide wheel, and the guide wheel is positioned on one side of the positioning block, so that the steel wire rope smoothly winds the rope wheel after passing through the guide wheel.

5. A lifting device as claimed in claim 4, characterized in that: the guide wheel is arranged on the bending rod and the hinged shaft of the box body.

6. A lifting device as claimed in claim 4, characterized in that: the positioning block extends into the rope groove but is not contacted with the groove wall, and the end part of the positioning block is arranged into an arc shape in transition connection with the groove bottom surface.

7. A lifting device as claimed in claim 2, characterized in that: and the bending rod is also provided with a side catch wheel.

8. The lifting device of claim 1, wherein: the rope blocking mechanism comprises an upper baffle positioned above the rope wheel, the upper baffle is arc-shaped, and a groove is formed in the arc surface of the upper baffle facing the rope groove.

9. The lifting device of claim 1, wherein: the rope sheave is characterized by further comprising a driving mechanism, wherein the driving mechanism comprises a motor, a gear shaft and a reduction gear, the motor drives the gear shaft to rotate, the gear shaft is in meshing transmission with the large-diameter part of the reduction gear, and the rope sheave is in external meshing with the small-diameter part of the reduction gear.