CN211393506U

CN211393506U - Elevator traction sheave

Info

Publication number: CN211393506U
Application number: CN201921838365.6U
Authority: CN
Inventors: 尤二永; 尤永; 纵朋朋
Original assignee: Chizhou Yongxin Elevator Parts Manufacturing Co ltd
Current assignee: Chizhou Yongxin Elevator Parts Manufacturing Co ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-09-01
Anticipated expiration: 2029-10-30

Abstract

The utility model provides an elevator driving sheave relates to the geothermol power pipeline field, including the shaft, the shaft is pegged graft with the rim plate center, it is connected with the support to epaxial rim plate both sides rotation that is located of wheel, the support top is rotated with the pinch roller and is connected, the pinch roller is tangent with the rim plate edge, the rim plate side is equipped with the grooving, be equipped with the rib to one side in the grooving, the shaft rotates with the pedestal to be connected, support bottom and pedestal fixed connection. In the utility model, the relative sliding between the traction sheave and the steel wire rope is avoided in the starting process of the elevator, the steel wire rope and the traction sheave can be protected, and the service lives of the steel wire rope and the traction sheave are prolonged; secondly, the X-shaped bracket is connected with two groups of pinch rollers, the two pinch rollers press the steel wire rope, and the contact surface between the steel wire rope and the wheel disc is enlarged, so that the friction force is further increased; the elasticity of the pinch roller is guaranteed, the steel rope can penetrate through a gap between the pinch roller and the wheel disc, the strength of the pinch roller can be guaranteed, and the pinch roller can apply certain pressure to the steel rope.

Description

Elevator traction sheave

Technical Field

The utility model relates to an elevator field especially relates to an elevator driving sheave.

Background

The basic parameters of the elevator mainly include rated load weight, number of passengers, rated speed, cage outline size and well type, etc., the traction sheave is a rope sheave on the traction machine, also called traction sheave or driving sheave, which is a device for transmitting power of the elevator, the friction force between the traction rope and a rope groove on the edge of the traction sheave is used to transmit power, the name of the elevator rope is considered, the steel wire rope is used on an elevator, and the most used steel wire rope is a small manned elevator. The pulley which plays a steering role between the traction sheave and the elevator steel wire rope is called the elevator steel wire rope pulley for short

However, in the starting stage of the elevator, the speed of the elevator starts to increase from zero, the acceleration value is large, in the process, the required friction force between the steel wire rope and the traction sheave is large, if the friction force between the steel wire rope and the traction sheave does not meet the force required by the acceleration of the elevator, relative sliding is easily generated between the steel wire rope and the traction sheave, and the abrasion of the steel wire rope or the traction sheave is aggravated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an elevator driving sheave to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize: the elevator traction sheave comprises a wheel shaft, wherein the wheel shaft is inserted into the center of a wheel disc, supports are rotatably connected to two sides of the wheel disc on the wheel shaft, the top ends of the supports are rotatably connected with pinch rollers, the pinch rollers are tangent to the edge of the wheel disc, rope grooves are formed in the side edges of the wheel disc, inclined ribs are arranged in the rope grooves, the wheel shaft is rotatably connected with a shaft bracket, and the bottom end of each support is fixedly connected with the shaft bracket.

Preferably, the pinch roller comprises a cast iron wheel which is rotatably connected with the support, the cast iron wheel is fixedly connected with a rubber sleeve which is sleeved on the outer side of the cast iron wheel, and the cross section of the rubber sleeve is a concave cambered surface.

Preferably, the rope groove is a concave groove, and the inclined ribs are arrayed in the rope groove in an annular mode by taking the circumference of the rope groove as a path array.

Preferably, the support comprises two X-shaped frame rods, the middle parts of the two X-shaped frame rods are fixedly connected with shaft sleeves, the top ends of the two X-shaped frame rods are fixedly connected with wheel sleeves, the wheel sleeves are rotatably connected with the pressing wheels, the bottom ends of the frame rods are rotatably connected with the fixing plate, and the fixing plate is fixedly connected with the support through bolts.

Preferably, the wheel axle comprises a prism fixedly connected with the wheel disc in the radial direction, and cylinders rotatably connected with the shaft bracket are respectively and fixedly connected to two ends of the prism.

Preferably, a fixed disk is fixedly connected to the prism, and the fixed disk is fixedly connected with the wheel disk through bolts.

Preferably, the cylinder is rotatably connected with the shaft sleeve.

The utility model has the advantages that:

in the utility model, the inclined ribs are arranged in the grooves of the wheel disc at first, so that the inclined ribs are clamped with the lines on the surface of the steel wire rope, the friction force between the steel wire rope and the wheel disc is increased, the bracket is connected on the wheel shaft and connected with the pinch roller through the bracket, and the pinch roller applies radial pressure to the steel wire rope, thereby further improving and increasing the friction force, avoiding the relative sliding between the traction sheave and the steel wire rope in the starting process of the elevator, protecting the steel wire rope and the traction sheave and prolonging the service life of the steel wire rope and the traction sheave; secondly, the X-shaped bracket is connected with two groups of pinch rollers, the two pinch rollers press the steel wire rope, and the contact surface between the steel wire rope and the wheel disc is enlarged, so that the friction force is further increased; the pinch roller adopts the mode of the rubber wheel of cover establishment outside the cast iron wheel, has guaranteed the elasticity of pinch roller promptly, makes the steel cable can pass the gap between pinch roller and the rim plate, can guarantee the intensity of pinch roller again, makes the pinch roller can apply certain pressure to the steel cable.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the wheel axle and wheel disc of the present invention;

fig. 3 is a schematic perspective view of the bracket of the present invention;

FIG. 4 is a front view of the pressing wheel of the present invention;

reference numerals: 1. a wheel axle; 101. a prism; 102. a cylinder; 2. a wheel disc; 201. an oblique rib; 202. a screw hole; 203. rope grooves; 3. a pedestal; 301. a shaft seat; 4. a pinch roller; 401. a cast iron wheel; 402. a rubber sleeve; 5. a support; 501. a shaft sleeve; 502. a frame bar; 503. a wheel sleeve; 6. a fixing plate; 7. a bolt; 8. and (7) fixing the disc.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1-4, an elevator traction sheave comprises a wheel axle 1, the wheel axle 1 is inserted into the center of a wheel disc 2, a bracket 5 is rotatably connected to the two sides of the wheel disc 2 on the wheel axle 1, the top end of the bracket 5 is rotatably connected with a pinch roller 4, the pinch roller 4 is tangent to the edge of the wheel disc 2, a rope groove 203 is arranged on the side edge of the wheel disc 2, an inclined rib 201 is arranged in the rope groove 203, the wheel axle 1 is rotatably connected with a shaft bracket 3, the bottom end of the bracket 5 is fixedly connected with the shaft bracket 3, the pinch roller 4 comprises a cast iron wheel 401 rotatably connected with the bracket 5, the cast iron wheel 401 is fixedly connected with a rubber sleeve 402 sleeved on the outer side of the cast iron wheel, the cross section of the rubber sleeve 402 is a concave arc surface, the rope groove 203 is a concave groove, the inclined rib 201 takes the circumference of the rope groove 203 as a path array and is arranged in the rope groove 203 in an annular array, the bottom end of the frame rod 502 is rotatably connected with a fixed plate 6, and the fixed plate 6 is fixedly connected with the bracket 5 through a bolt 7.

During assembly, the wheel shaft 1 is inserted into the center of the face disc to fix the wheel shaft 1 and the wheel disc 2, then the shaft sleeve 501 of the bracket 5 is sleeved on the wheel shaft 1, the two brackets are respectively positioned at two sides of the wheel disc 2, the pinch roller 4 is arranged between the two brackets 5, then the wheel shaft 1 is connected with the shaft seat 301, the shaft seat 301 is fixedly connected with the shaft frame 3, the wheel shaft 1 is connected with the output shaft of a tractor, the tractor rotates to rotate the wheel shaft 1, the wheel disc 2 which is radially and fixedly connected with the wheel shaft 1 rotates, the steel wire rope passes through the space between the wheel disc 2 and the pressure disc, two ends of the steel wire rope are respectively connected with the counterweight block and the elevator car, when the wheel disc 2 rotates, under the action of friction force between the wheel disc 2 and the steel wire rope, the steel wire rope rotates along with the wheel shaft 1, the car connected with the steel wire rope moves, the inclined rib 201 is arranged in the rope groove 203 of, relative sliding takes place for wire rope and rim plate 2 and the rim plate 2 or wire rope of wearing and tearing, set up pinch roller 4 simultaneously in the 2 outsides of rim plate and be used for compressing tightly wire rope, when penetrating a wire rope, rubber sleeve 402 warp under the wire rope extrusion, the reaction force of rubber sleeve 402 acts on wire rope, make wire rope and rim plate 2 laminate more, the life of extension wire rope and rim plate 2, fixed plate 6 that hack lever 502 bottom is connected passes through bolt 7 and is connected with pedestal 3, make support 5 keep fixed.

Example 2

As shown in fig. 1-4, an elevator traction sheave, including shaft 1, shaft 1 pegs graft with rim plate 2 center, it is connected with support 5 to lie in rim plate 2 both sides rotation on shaft 1, support 5 top is connected with pinch roller 4 rotation, pinch roller 4 is tangent with rim plate 2 edge, rim plate 2 side is equipped with grooving 203, be equipped with diagonal rib 201 in the grooving 203, shaft 1 rotates with pedestal 3 to be connected, support 5 bottom and pedestal 3 fixed connection, shaft 1 includes prismatic 101 with 2 radial fixed connection of rim plate, lie in prismatic 101 both ends respectively fixedly connected with pedestal 3 rotate the cylinder 102 of being connected, the last fixedly connected with fixed disk 8 of prismatic 101, fixed disk 8 passes through bolt 7 fixed connection with rim plate 2, cylinder 102 rotates with axle sleeve 501 to be connected.

When fixing rim plate 2 and shaft 1, pass screw 202 on the rim plate 2 through bolt 7 and be connected with fixed disk 8, because fixed

disk

8 and 1 fixed connection of shaft, can make

rim plate

2 and 1 axial fixed connection of shaft, the prism hole at rim plate 2 center is pegged graft with prismatic 101, make

rim plate

2 and 1 radial fixed connection of shaft, when the pivot rotates, cylinder 102 rotates on axle bed 301, support 5 and 3 fixed connection of pedestal, and the axle sleeve 501 at support 5 middle part rotates with shaft 1 and is connected, consequently pinch roller 4 is located rim plate 2 edge a bit, and pinch roller 4 rotates with wheel cover 503 and is connected, under the frictional force between wire rope and pinch roller 4, make pinch roller 4 rotate.

The working principle is as follows: the utility model discloses when using, with axle bed 301 fixed connection in the computer lab of elevartor shaft, the output shaft fixed connection of shaft 1 and hauler, wire rope passes rope groove 203 on the rim plate 2, pinch roller 4 presses on wire rope, when hauler drive shaft 1 rotates, 1 drive rim plate 2 of shaft rotates on pedestal 3, line and the rib 201 looks joint in the rope groove 203 on the wire rope surface, make the frictional force increase between wire rope and the thunder climb, simultaneously under pinch roller 4 effect, increase the binding face between wire rope and the rim plate 2, thereby further increase frictional force, avoid wire rope and 2 relative sliding of rim plate, thereby avoid wearing and tearing, prolong wire rope and 2's life of rim plate.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The elevator traction sheave comprises a wheel shaft (1), wherein the wheel shaft (1) is spliced with the center of a wheel disc (2), and the elevator traction sheave is characterized in that: wheel shaft (1) is located rim plate (2) both sides and rotates and be connected with support (5), support (5) top is rotated with pinch roller (4) and is connected, pinch roller (4) are tangent with rim plate (2) edge, rim plate (2) side is equipped with grooving (203), be equipped with diagonal rib (201) in grooving (203), wheel shaft (1) rotates with pedestal (3) and is connected, support (5) bottom and pedestal (3) fixed connection.

2. The elevator traction sheave of claim 1, wherein: the pinch roller (4) comprises a cast iron wheel (401) rotatably connected with the support (5), the cast iron wheel (401) is fixedly connected with a rubber sleeve (402) sleeved on the outer side of the cast iron wheel, and the cross section of the rubber sleeve (402) is a concave cambered surface.

3. The elevator traction sheave of claim 1, wherein: the rope groove (203) is a concave groove, and the inclined ribs (201) are arrayed in the rope groove (203) in an annular mode by taking the circumference of the rope groove (203) as a path array.

4. The elevator traction sheave of claim 1, wherein: the support (5) comprises two X-shaped frame rods (502) fixedly connected with shaft sleeves (501) in the middle, wheel sleeves (503) are fixedly connected to the top ends of the two X-shaped frame rods, the wheel sleeves (503) are rotatably connected with the pressing wheel (4), the bottom ends of the frame rods (502) are rotatably connected with a fixing plate (6), and the fixing plate (6) is fixedly connected with the support (5) through bolts (7).

5. The elevator traction sheave of claim 4, wherein: the wheel shaft (1) comprises a prism (101) fixedly connected with the wheel disc (2) in the radial direction, and cylinders (102) which are respectively fixedly connected with the two ends of the prism (101) and are rotatably connected with the shaft bracket (3) are arranged.

6. The elevator traction sheave of claim 5, wherein: fixedly connected with fixed disk (8) on prism (101), fixed disk (8) pass through bolt (7) fixed connection with rim plate (2).

7. The elevator traction sheave of claim 5, wherein: the cylinder (102) is rotatably connected with the shaft sleeve (501).