CN214045319U

CN214045319U - Driving mechanism of speed regulating device of magnetic heating system

Info

Publication number: CN214045319U
Application number: CN202023260616.2U
Authority: CN
Inventors: 夏家平; 柏流广; 过孝红; 过光筌; 夏静静; 过孝弟
Original assignee: Hongkun New Energy Hainan Co ltd
Current assignee: Hongkun New Energy Hainan Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-08-24
Anticipated expiration: 2030-12-29

Abstract

A driving mechanism of a speed regulating device of a magnetic heating system relates to the technical field of permanent magnet transmission, in particular to a driving mechanism of a speed regulating device of a magnetic heating system. The magnetic control device comprises an outer rotating arm sleeve, a speed regulating inner sleeve and a gear pair, wherein the gear pair comprises a pinion and a gear which are meshed with each other, the pinion is in key connection with an output shaft of an external motor, the gear is fixedly connected with the outer rotating arm sleeve, the outer rotating arm sleeve is fixed on a main shaft of a magnetic thermal system, the speed regulating inner sleeve is fixed on a support of the magnetic thermal system, the outer rotating arm sleeve is connected with the speed regulating inner sleeve through a sliding block assembly, a spiral groove structure is arranged on the speed regulating inner sleeve, and the sliding block assembly is matched with the spiral groove to perform spiral motion. The utility model discloses have the cycle that extension system maintained, reduce system maintenance cost and compact structure, positive effect that transmission precision is high.

Description

Driving mechanism of speed regulating device of magnetic heating system

Technical Field

The utility model relates to a permanent magnetism transmission technical field especially belongs to a magnetic force heating system speed adjusting device's actuating mechanism.

Background

In a disc type permanent magnet speed regulation system of a magnetic speed regulator, in order to drive a magnetic disc to reciprocate in the axial direction, the prior art adopts a spiral groove structure to realize the conversion of rotary motion into linear motion. In a general design scheme, a spiral groove structure is positioned on a speed regulation inner sleeve, and an outer rotating arm sleeve rotates along the speed regulation inner sleeve and does axial reciprocating motion through a pair of sliding block structures matched with the spiral groove. The above-mentioned mechanisms for driving the spiral groove structure to rotate are generally a four-bar linkage mechanism and a worm gear mechanism. Because the outer rotating arm sleeve not only rotates in the circumferential direction, but also moves linearly in the axial direction, a joint bearing is required to be arranged on a connecting point of the four-bar structure so as to realize the movement of the outer rotating arm sleeve in the axial direction. Because the joint ball bearing has the degree of freedom in its own angular orientation and axial all to exist, can lead to four connecting rod structures when the transmission, can't in time be converted into linear motion as driving motor's rotary motion, can have great hysteresis quality. This hysteresis is not applicable to conditions with high requirements for accuracy control. The transmission structure of the worm and gear structure is complex, the system response speed is low, the worm and gear structure is only suitable for places with extremely large system power design, and the worm and gear structure is not friendly to the design of a medium and small power section system.

In addition, in conventional designs, the slider assembly in contact with the spiral groove structure typically employs a rolling bearing or slider. Because the design space of the slide block is extremely limited, a larger bearing cannot be selected. Therefore, when the axial force is too large, a slider is often used instead of the rolling bearing. However, in the past engineering case, the magnetic speed regulating system adopting air cooling does not have lubricating oil as a cooling medium. After long-term use, the bearing or the sliding block part can rub against the inner wall of the spiral groove due to lack of lubrication. Under the frequent occasion of some speed governing, the helical groove can be seriously abraded, which leads to further reduction of the transmission precision of the system and even can not meet the speed governing requirement of the magnetic speed governing system.

Disclosure of Invention

An object of the utility model is to provide a magnetic force system speed adjusting device's actuating mechanism that heats promptly to reach compact structure, the high purpose of transmission precision.

The utility model provides a magnetic force heating system speed adjusting device's actuating mechanism, a serial communication port, including outer rotor arm cover, speed governing endotheca and gear pair, the gear pair include intermeshing's pinion and gear wheel, pinion and external motor output shaft key-type connection, gear wheel and outer rotor arm cover fixed connection, outer rotor arm cover fix on the magnetic heating system main shaft, the speed governing endotheca is fixed on the magnetic heating system support, outer rotor arm cover passes through sliding block set with the speed governing endotheca and is connected, wherein, has the helicla flute structure on the speed governing endotheca, sliding block set is helical motion with the helicla flute cooperation.

Furthermore, the outer rotating arm sleeve is connected with a main shaft of the magneto-caloric system through a rolling bearing, a wear-resisting ring and a connecting flange; a wear-resistant ring is also arranged between the outer rotating arm sleeve and the speed regulating inner sleeve.

Furthermore, the small gear is a full-circle gear circle, the large gear is a special-shaped gear circle, and the radian of the large gear is larger than 90 degrees.

Furthermore, the gear width of the small gear is larger than the sum of the maximum axial movable stroke of the outer rotating arm sleeve and the tooth width of the large gear.

Furthermore, the small gear and the large gear are kept in a meshing state, and the meshing width of the gear pair is not smaller than the tooth width of the large gear.

Furthermore, the sliding block assembly comprises a sliding block, a sliding block cover plate and a sliding block main shaft, wherein the sliding block cover plate is connected with the outer rotating arm sleeve through a bolt group, and the sliding block is rotatably connected with the lower end of the sliding block main shaft; the sliding block main shaft and the sliding block form axial limit through a first clamp spring and a second clamp spring which are fixed on the sliding block main shaft and the sliding block respectively; an axial oil supply hole penetrating through the sliding block main shaft is formed in the axis direction of the sliding block main shaft, a radial oil supply hole is further formed in the contact portion of the tail end of the sliding block main shaft and the sliding block, and the axial oil supply hole is communicated with the radial oil supply hole and is connected with an oil supply pipeline.

Furthermore, the slide block is of an oval structure, and the oval wide surface is in contact with the inner wall surface of the spiral groove of the speed regulation inner sleeve.

Furthermore, the outer wall of the main shaft of the sliding block is also provided with flow slowing grooves which are symmetrically arranged along the axial direction and form an angle of 180 degrees.

The utility model provides a magnetic force heating system speed adjusting device's actuating mechanism, the radial fuel feeding hole of seting up through the axial fuel feeding hole and the terminal and the slider contact site of slider main shaft that run through the slider main shaft that set up along the axle center direction of slider main shaft, can pass through slider assembly's axial fuel feeding hole with lubricating oil, radial fuel feeding hole, in pouring into the helicla flute on the speed governing endotheca, thereby lubricate slider assembly self and helicla flute inner wall, and then effectively prolonged whole speed adjusting device's reliability, the cycle that has the extension system and maintain, the positive effect of the maintenance cost of reduction system.

Drawings

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

FIG. 2 is a view from A-A direction of the present invention;

FIG. 3 is a view from the C-C direction of the present invention;

FIG. 4 is a partial enlarged view of the present invention;

fig. 5 is a schematic structural view of the slide block assembly of the present invention;

FIG. 6 is a view from the B-B direction of the present invention;

fig. 7 is a schematic structural diagram of the slider spindle according to the present invention.

Detailed Description

As shown in fig. 1-7, the driving mechanism of the speed adjusting device of the magnetic heating system provided by the present invention mainly comprises a pinion 1, a gearwheel 2, an outer rotating arm sleeve 3, an inner speed adjusting sleeve 4, and a sliding block assembly 5. Wherein, the pinion and the bull gear form a pair of gear pairs, and the outer swing arm cover is fixedly connected with the bull gear. Under the action of the driving force of the external motor, the small gear drives the large gear to rotate, and the large gear drives the outward rotating arm sleeve to rotate. In the embodiment, the gear width of the pinion is larger than the sum of the maximum axial movable stroke of the outer rotating arm sleeve and the tooth width of the bull gear, so that the pinion and the bull gear are always meshed in the working process of the gear pair, and the meshing width of the gear pair is not smaller than the tooth width of the bull gear. Particularly, the small gear is a complete gear circle, the large gear is not a complete gear circle, and the radian of the large gear is larger than 90 degrees so as to meet the requirement that the outer rotating arm sleeve rotates more than plus or minus 90 degrees.

The outer rotor arm sleeve is connected with a main shaft 8 of the magnetic thermal system through a rolling bearing 6, a wear-resisting ring 7 and a connecting flange, so that the outer rotor arm sleeve is radially fixed and plays a role in radial support. Specifically, the outer ring of the rolling bearing is matched with the inner ring of the outer rotating arm sleeve, the inner ring of the rolling bearing is matched with the outer ring of the connecting flange, and the inner ring of the connecting flange is connected with a main shaft of the magnetocaloric system through a group of (two) wear-resistant rings. The connecting flange can rotate at a high speed along with the main shaft of the magnetocaloric system and can axially move on the main shaft of the magnetocaloric system through the wear-resistant ring, and the wear-resistant ring can block the rotation of the main shaft of the magnetocaloric system, so that the outer rotor arm sleeve is static. In addition, a wear-resistant ring is also arranged between the outer rotating arm sleeve and the speed regulation inner sleeve, so that the outer rotating arm sleeve rotates on the speed regulation inner sleeve, and the axial movement of the outer rotating arm sleeve is realized.

The outer rotating arm sleeve is connected with the speed regulating inner sleeve through a sliding block component. The speed regulating inner sleeve is fixed with the external support structure and does not rotate along with the external rotating arm sleeve. The speed regulating inner sleeve is provided with a spiral groove structure 4.1 for limiting the motion track of the sliding block assembly on the outer rotating arm sleeve, so that the sliding block assembly can do spiral motion along the spiral groove on the speed regulating inner sleeve and drive the outer rotating arm sleeve to do spiral forward or backward motion around the axis of the speed regulating inner sleeve. When the outer rotating arm sleeve is driven by the large gear to rotate, the rotary motion of the outer rotating arm sleeve is converted into axial motion through the spiral motion of the sliding block component on the spiral groove structure.

The sliding block component consists of a sliding block 5.2, a sliding block cover plate 5.1 and a sliding block main shaft 5.3. The slide block cover plate is connected with the outer rotating arm sleeve through a bolt group 5.6, the slide block is rotatably connected with the lower end of the slide block main shaft, and the slide block can rotate around the slide block main shaft. The first clamp spring 5.4 and the second clamp spring 5.5 are fixed on the sliding block main shaft and the sliding block, and the axial movement of the sliding block main shaft and the sliding block is limited through the first clamp spring and the second clamp spring to form axial limiting. An axial oil supply hole penetrating through the main shaft of the sliding block is formed in the axis direction of the main shaft of the sliding block, a radial oil supply hole is further formed in the contact part of the tail end of the main shaft of the sliding block and the sliding block, and the radial oil supply hole is communicated with the axial oil supply hole and is connected with an oil supply pipeline 9 to serve as an oil filling hole for lubricating grease. The slide block is in an oval structure, and the oval wide surface is in contact with the inner wall surface of the spiral groove of the speed regulation inner sleeve. Lubricating grease supplied by the oil supply pipeline flows into the spiral groove through the axial oil supply hole to lubricate the contact surface of the sliding block and the spiral groove. Lubricating grease can also flow into the space between the sliding block and the sliding block main shaft through the radial oil supply hole, and the contact surface between the inner wall of the sliding block and the outer wall of the sliding block main shaft is lubricated by utilizing a fit clearance.

In addition, a pair of flow buffering grooves 10 which are symmetrically arranged along the axial direction at 180 degrees are further arranged on the outer wall of the sliding block main shaft, so that the lubricating grease passing through the radial oil supply hole is prevented from flowing into a gap between the sliding block and the sliding block main shaft due to overlarge pressure, and the lubricating effect is prevented from being influenced. The lubricating grease through the radial oil supply hole can be effectively drained to the inner wall of the sliding block through the arrangement of the slow-flow groove, so that sufficient lubrication between the sliding block and the sliding block main shaft is guaranteed.

This application can also reduce the space that transmission structure occupy in radial direction when improving speed adjusting device's actuating mechanism's transmission precision and response speed through adopting the transmission structure of gear pair. In addition, lubricating oil can be injected into the spiral grooves between the sliding block and the sliding block main shaft and on the speed regulating inner sleeve through the axial oil supply hole penetrating through the sliding block main shaft and the radial oil supply hole formed in the contact part of the tail end of the sliding block main shaft and the sliding block, so that the sliding block assembly and the inner wall of the spiral groove are lubricated, the reliability of a driving mechanism of the speed regulating device is effectively prolonged, and the maintenance period is shortened. And under the use occasion that the air cooling is used as cooling, the equipment is located in a remote area and the maintenance is inconvenient, the driving mechanism has extremely high reliability, the maintenance period can be greatly prolonged, and the system maintenance cost is reduced. It is worth explaining that, because wind energy equipment is generally located in remote areas, is difficult for maintenance and repair, and the magnetic heating system of the medium and small power section adopts air cooling to have more cost advantage in addition, consequently, the utility model discloses specially adapted uses in the wind energy magnetic heating system below the megawatt level power section.

Claims

1. A driving mechanism of a speed regulating device of a magnetic heating system is characterized by comprising an outer rotating arm sleeve, a speed regulating inner sleeve and a gear pair, wherein the gear pair comprises a pinion and a gear which are meshed with each other, the pinion is in key connection with an output shaft of an external motor, the gear is fixedly connected with the outer rotating arm sleeve, the outer rotating arm sleeve is fixed on a main shaft of a magnetocaloric system, the speed regulating inner sleeve is fixed on a bracket of the magnetocaloric system, the outer rotating arm sleeve is connected with the speed regulating inner sleeve through a sliding block assembly, a spiral groove structure is arranged on the speed regulating inner sleeve, and the sliding block assembly is matched with the spiral groove to perform spiral motion.

2. The driving mechanism of the speed regulating device of the magnetic heating system according to claim 1, further characterized in that the outer rotor arm sleeve is connected with the main shaft of the magnetocaloric system through a rolling bearing, a wear ring and a connecting flange; a wear-resistant ring is also arranged between the outer rotating arm sleeve and the speed regulating inner sleeve.

3. The driving mechanism of a speed regulating device of a magnetic heating system according to claim 1, further characterized in that the small gear is a full-circle gear circle, the large gear is a special-shaped gear circle, and the radian of the large gear is larger than 90 °.

4. The driving mechanism of a speed-regulating device of a magnetic heating system according to claim 1, further characterized in that the gear width of the small gear is larger than the sum of the maximum axial movable stroke of the outer rotating arm sleeve and the tooth width of the large gear.

5. The driving mechanism of a speed-regulating device of a magnetic heating system according to claim 1, further characterized in that the pinion gear and the bull gear are kept in a meshed state, and the meshing width of the gear pair is not smaller than the tooth width of the bull gear.

6. The driving mechanism of the speed regulating device of the magnetic heating system according to any one of claims 1 to 5, further characterized in that the slider assembly comprises a slider, a slider cover plate and a slider main shaft, wherein the slider cover plate is connected with the outer rotating arm sleeve through a bolt set, and the slider is rotatably connected with the lower end of the slider main shaft; the sliding block main shaft and the sliding block form axial limit through a first clamp spring and a second clamp spring which are fixed on the sliding block main shaft and the sliding block respectively; an axial oil supply hole penetrating through the sliding block main shaft is formed in the axis direction of the sliding block main shaft, a radial oil supply hole is further formed in the contact portion of the tail end of the sliding block main shaft and the sliding block, and the axial oil supply hole is communicated with the radial oil supply hole and is connected with an oil supply pipeline.

7. The driving mechanism of the speed regulating device for a magnetic heating system as claimed in claim 6, further characterized in that the slider has an elliptical structure, and the elliptical wide surface contacts with the inner wall surface of the spiral groove of the speed regulating inner sleeve.

8. The driving mechanism of a speed regulating device of a magnetic heating system according to claim 7, further characterized in that a flow-slowing groove is provided on the outer wall of the main shaft of the slider, and the flow-slowing groove is arranged axially and 180 degrees symmetrically.