CN217808210U

CN217808210U - Elevator guide wheel connecting structure for electric power maintenance workshop

Info

Publication number: CN217808210U
Application number: CN202221354225.3U
Authority: CN
Inventors: 柳闻鸣; 乐靖波; 夏宝亮; 韩怡; 李嘉琦
Original assignee: Zhejiang Dayou Industrial Co ltd Power Bearing Branch
Current assignee: Zhejiang Dayou Industrial Co ltd Power Bearing Branch
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2022-11-15
Anticipated expiration: 2032-06-01

Abstract

The utility model relates to an electric power maintenance workshop elevator leading wheel connection structure, including main shaft and leading wheel, the leading wheel passes through the bearing support and is in on the main shaft, its characterized in that, the bearing is only one, the bearing is biserial angular contact roller bearing, be equipped with a cylinder section on the main shaft, the bearing housing is established on the cylinder section, the bearing includes an outer lane and two inner circles, the inner circle passes through the roller and links together with the outer lane rotation. The utility model aims at providing an electric power maintenance workshop elevator leading wheel connection structure who supports through a biserial angular contact roller bearing has solved current electric power maintenance workshop elevator leading wheel connection structure and has need set up the shelves shoulder and the high problem of machining precision requirement that leads to.

Description

Elevator guide wheel connecting structure for electric power maintenance workshop

Technical Field

The utility model relates to a power maintenance technical field especially relates to an electric power maintenance workshop elevator leading wheel connection structure.

Background

In an electric power maintenance shop, elevators are set to transfer items between different floors to pass maintenance efficiency. The elevator for power maintenance mainly comprises a tractor (winch), a guide rail, a counterweight, a safety device (such as a speed limiter, a safety clamp, a buffer and the like), a signal control system, a lift car, a hall door and the like. These parts are installed in the hoistway and machine room of the building, respectively. Usually, a steel wire rope is used for friction transmission, the steel wire rope bypasses a traction sheave, two ends of the steel wire rope are respectively connected with a car and a balance weight, and a motor drives the traction sheave to lift the car. The elevator requires safety and reliability, high conveying efficiency, accurate leveling, comfortable riding and the like. The basic parameters of an elevator mainly include a rated load capacity, the number of passengers, a rated speed, an overall dimension of a car, a hoistway type and the like. The elevator guide wheel is a component on an elevator and comprises a main shaft and a guide wheel, and the guide wheel is supported on the main shaft through a bearing. At present, two deep groove ball bearings are used for bearing and running of an elevator guide wheel, so that bearing installation needs to be carried out in two steps, the installation is complex, a blocking shoulder is arranged between the two bearings, main shafts located on two sides of the blocking shoulder can only be processed respectively, the coaxiality of parts, located on two sides of the blocking shoulder, of the main shafts needs to be paid extra attention to at the moment, and the requirement on processing precision is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electric power maintenance workshop elevator leading wheel connection structure who supports through a biserial angular contact roller bearing has solved current electric power maintenance workshop elevator leading wheel connection structure and has need set up the shelves shoulder and the problem that the machining precision that leads to requires highly.

The technical problem is solved by the following technical scheme: the utility model provides an electric power maintenance workshop elevator leading wheel connection structure, includes main shaft and leading wheel, the leading wheel passes through the bearing and supports on the main shaft, its characterized in that, the bearing is only one, the bearing is double-row angular contact roller bearing, be equipped with a cylinder section on the main shaft, the bearing housing is established on the cylinder section, the bearing includes an outer lane and two inner circles, the inner circle passes through the roller and links together with the outer lane rotation.

The utility model discloses still include the go-between, be equipped with on the outer peripheral face of go-between along the annular groove that only slips off of go-between circumference extension, the inner circle is located and is equipped with the annular spread groove that only slips off along inner circle circumference extension on the outer peripheral face of the one end at bearing center, and the internal diameter of the lateral wall of one side at the center of inner circle is kept away from to the annular spread groove is less than the internal diameter of inner circle and forms the path section, and the go-between wears to establish two simultaneously in the inner circle, two lateral walls one-to-one ground in annular groove are worn to establish two inner circles in the annular spread groove and make the go-between fix two inner circles together, the go-between holding is in the path section, the internal diameter of go-between is greater than the internal diameter of inner circle. The inner ring can be effectively prevented from being separated.

Preferably, the connecting ring is of a rubber structure, and the side wall of the connecting ring abuts against the side wall of one side of the annular connecting groove away from the center of the inner ring. The assembly is convenient.

Preferably, the outer circumferential surface of the inner ring is provided with roller mounting grooves, the rollers are mounted in the roller mounting grooves, the bottom wall of each roller mounting groove is a conical surface with one end smaller towards the center of the outer ring and the other end larger, the inner circumferential surface of the outer ring is provided with two conical surface sections which are supported on the two rows of rollers in a one-to-one correspondence manner, and the inner diameters of the two ends of the outer ring are larger than the outer diameter of the large-diameter section of the conical surface section. The bearing is convenient to assemble.

Preferably, an annular oil storage groove extending along the circumferential direction of the inner ring is arranged between the bottom wall of the roller mounting groove and the side walls of the two roller mounting grooves. The lubrication life can be improved.

Preferably, two ends of the outer ring and the inner ring are connected together in a sealing mode through a sealing structure, the sealing structure comprises an inner ring arranged on the inner ring in a sealing mode and an outer ring arranged in the outer ring in a penetrating mode in a sealing mode, a rubber ring is vulcanized on the outer ring, and the rubber ring and the inner ring are connected together in a sealing and abutting mode. The bearing can prevent outside water from entering the bearing and prevent grease in the bearing from overflowing.

Preferably, the inner ring and the outer ring are both of metal structures, the inner ring is provided with an outer folded edge, the outer ring is provided with an inner folded edge, the rubber ring is vulcanized on the outer ring and the inner folded edge at the same time, the rubber ring is provided with a first annular sealing lip and a second annular sealing lip which extend along the circumferential direction of the inner ring, the first annular sealing lip is in sealing abutting connection with the outer circumferential surface of the inner ring, the second annular sealing lip is in sealing abutting connection with the end surface of the outer folded edge facing one end of the inner ring, and the outer folded edge, the second annular sealing lip, the rubber ring, the first annular sealing lip and the inner ring form a first sealing cavity in an enclosing mode. The sealing reliability is good.

Preferably, the first sealing cavity is filled with grease. The wear of the seal structure can be reduced.

Preferably, a third annular sealing lip is arranged on the rubber ring, the third annular sealing lip is in sealing and abutting joint with the end face, facing one end of the inner ring, of the outer folding edge, and the second sealing cavity located outside the first sealing cavity is defined by the outer folding edge, the second annular sealing lip, the rubber ring and the third annular sealing lip. The sealing reliability can be further improved.

Preferably, the second sealing cavity is filled with grease.

The utility model has the advantages of that: the same space, due to the roller load, can bear a greater load. The two bearings are installed by pressing the main shaft for 2 times, and the technical scheme can meet the requirement by adopting the integrated bearing for pressing once, and can avoid assembly errors of different shafts and the like caused by secondary installation; the coaxiality of two sides does not need to be paid extra attention, the processing precision is reduced, and the measurement difficulty is simplified; meanwhile, the roller bearing can bear certain lateral force, and early damage caused by unconventional lateral impact can be avoided.

Drawings

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

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a partially enlarged schematic view of fig. 1 at B.

In the figure: the sealing structure comprises a main shaft 1, a guide wheel 2, a connecting ring 3, an annular anti-slip groove 4, an outer ring 5, an inner ring 6, a roller 7, an annular connecting groove 8, a side wall 9 of one side, away from the center of the inner ring, of the annular connecting groove, a side wall 10 of the annular anti-slip groove, a roller mounting groove 11, a conical surface section 12, an annular oil storage groove 13, a sealing structure 14, an inner ring 15, an outer ring 16, a rubber ring 17, an outer folded edge 18, an inner folded edge 19, a first annular sealing lip 20, a second annular sealing lip 21, a third annular sealing lip 22, a first sealing cavity 23, grease 24, a second sealing cavity 25 and a cylindrical section 26.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1 to 3, an elevator guide wheel connecting structure for an electric power maintenance workshop includes a main shaft 1, a guide wheel 2 and a connecting ring 3. The guide wheel is supported on the main shaft through a bearing, only one bearing is arranged, the bearing is a double-row angular contact roller bearing, a cylindrical section 26 is arranged on the main shaft, and the bearing is sleeved on the cylindrical section. The outer peripheral face of the connecting ring is provided with an annular anti-drop groove 4 extending along the circumferential direction of the connecting ring, the bearing comprises an outer ring 5 and two inner rings 6, the inner rings are rotationally connected with the outer ring through a roller 7, the outer peripheral face of one end of the inner ring located at the center of the bearing is provided with an annular connecting groove 8 extending along the circumferential direction of the inner ring, the inner diameter of the side wall 9 of one side, away from the center of the inner ring, of the annular connecting groove is smaller than that of the inner ring to form a small-diameter section, the connecting ring is simultaneously arranged in the two inner rings in a penetrating mode, the two side walls 10 of the annular anti-drop groove are arranged in the annular connecting grooves of the two inner rings in a penetrating mode in a one-to-one correspondence mode to enable the connecting ring to fix the two inner rings together, the connecting ring is accommodated in the small-diameter section, and the inner diameter of the connecting ring is larger than that of the inner rings. The connecting ring is of a rubber structure, and the side wall of the connecting ring and the side wall of one side, away from the center of the inner ring, of the annular connecting groove are abutted together. The outer peripheral surface of the inner ring is provided with a roller mounting groove 11, the rollers are mounted in the roller mounting groove, the bottom wall of the roller mounting groove is a conical surface which faces the center of the outer ring and is small at one end and large at the other end, the inner peripheral surface of the outer ring is provided with two conical surface sections 12 which are supported on the two rows of rollers in a one-to-one correspondence manner, and the inner diameters of the two ends of the outer ring are larger than the outer diameter of the large-diameter section of the conical surface section. An annular oil storage groove 13 extending along the circumferential direction of the inner ring is arranged between the bottom wall of the roller mounting groove and the side walls of the two roller mounting grooves. The two ends of the outer ring are connected with the inner ring in a sealing mode through a sealing structure 14, the sealing structure comprises an inner ring 15 which is sleeved on the inner ring in a sealing mode and an outer ring 16 which is arranged in the outer ring in a sealing mode in a penetrating mode, a rubber ring 17 is vulcanized on the outer ring, and the inner ring and the outer ring are both of metal structures. The rubber ring and the inner ring are in sealing and abutting connection, and specifically: the inner ring is equipped with outer hem 18, the outer loop is equipped with interior hem 19, the rubber ring vulcanizes simultaneously on outer loop and interior hem, the rubber ring is equipped with along the first annular seal lip 20 of inner ring circumference extension, second annular seal lip 21 and third annular seal lip 22, the sealed butt of first annular seal lip is on the outer peripheral face of inner ring, the sealed butt of second annular seal lip is on the terminal surface of outer hem towards inner ring one end, outer hem, second annular seal lip, the rubber ring, first annular seal lip and inner ring enclose into first seal chamber 23. The first sealed cavity is filled with grease 24. The third annular sealing lip is in sealing butt joint with the end face of one end, facing the inner ring, of the outer folding edge, and the second annular sealing lip, the rubber ring and the third annular sealing lip enclose a second sealing cavity 25 located outside the first sealing cavity. Grease is also filled in the second sealing cavity.

Claims

1. The utility model provides an electric power maintenance workshop elevator leading wheel connection structure, includes main shaft and leading wheel, the leading wheel passes through the bearing and supports on the main shaft, its characterized in that, the bearing is only one, the bearing is double-row angular contact roller bearing, be equipped with a cylinder section on the main shaft, the bearing housing is established on the cylinder section, the bearing includes an outer lane and two inner circles, the inner circle passes through the roller and links together with the outer lane rotation.

2. The elevator guide wheel connecting structure for the electric power maintenance workshop according to claim 1, further comprising a connecting ring, wherein an annular anti-slip groove extending along the circumferential direction of the connecting ring is formed in the outer circumferential surface of the connecting ring, an annular connecting groove extending along the circumferential direction of the inner ring is formed in the outer circumferential surface of one end of the inner ring located at the center of the bearing, the inner diameter of the side wall of one side of the annular connecting groove, which is far away from the center of the inner ring, is smaller than the inner diameter of the inner ring to form a small-diameter section, the connecting ring is simultaneously inserted into the two inner rings, the two side walls of the annular anti-slip groove are inserted into the annular connecting grooves of the two inner rings in a one-to-one correspondence manner, so that the two inner rings are fixed together by the connecting ring, the connecting ring is accommodated in the small-diameter section, and the inner diameter of the connecting ring is larger than the inner diameter of the inner rings.

3. The connection structure of the elevator guide wheel of the electric power maintenance workshop according to claim 2, wherein the connection ring is of a rubber structure, and a side wall of the connection ring abuts against a side wall of one side of the annular connection groove away from the center of the inner ring.

4. The electric power maintenance workshop elevator guide wheel connection structure according to claim 2 or 3, wherein the outer circumferential surface of the inner ring is provided with a roller installation groove in which the rollers are installed, the bottom wall of the roller installation groove is a tapered surface that is smaller at one end and larger at the other end toward the center of the outer ring, the inner circumferential surface of the outer ring is provided with two tapered surface sections that are supported on the two rows of rollers in a one-to-one correspondence, and the inner diameter of the two ends of the outer ring is greater than the outer diameter of the larger diameter section of the tapered surface sections.

5. The electric power maintenance workshop elevator guide wheel connection structure of claim 4, wherein an annular oil reservoir extending in the circumferential direction of the inner race is provided between the bottom wall of the roller mounting groove bottom wall and the side walls of both roller mounting grooves.

6. The elevator guide wheel connecting structure for the electric power maintenance workshop as claimed in claim 1, 2 or 3, wherein two ends of the outer ring are connected with the inner ring in a sealing manner through a sealing structure, the sealing structure comprises an inner ring which is sealed and sleeved on the inner ring and an outer ring which is arranged in the outer ring in a sealing and penetrating manner, a rubber ring is vulcanized on the outer ring, and the rubber ring and the inner ring are in sealing and abutting connection.

7. The elevator guide wheel connecting structure for the electric power maintenance workshop according to claim 6, wherein the inner ring and the outer ring are both of a metal structure, the inner ring is provided with an outer folded edge, the outer ring is provided with an inner folded edge, the rubber ring is vulcanized on the outer ring and the inner folded edge at the same time, the rubber ring is provided with a first annular sealing lip and a second annular sealing lip which extend along the circumferential direction of the inner ring, the first annular sealing lip is in sealing abutting connection with the outer circumferential surface of the inner ring, the second annular sealing lip is in sealing abutting connection with the end surface of the outer folded edge, facing one end of the inner ring, and the outer folded edge, the second annular sealing lip, the rubber ring, the first annular sealing lip and the inner ring form a first sealing cavity.

8. The electric power maintenance workshop elevator guide wheel connection structure of claim 7, wherein the first sealed cavity is filled with grease.

9. The elevator guide wheel connecting structure for the electric power maintenance workshop according to claim 7, wherein a third annular sealing lip is arranged on the rubber ring and is in sealing abutting connection with an end face of the outer flange, which faces one end of the inner ring, and the outer flange, the second annular sealing lip, the rubber ring and the third annular sealing lip enclose a second sealing cavity which is located outside the first sealing cavity.

10. The electric power maintenance workshop elevator guide wheel connection structure of claim 9, wherein the second sealed cavity is filled with grease.