CN202390064U - Transmission structure of gears and racks of construction hoist and free of gear backlash meshing - Google Patents
Transmission structure of gears and racks of construction hoist and free of gear backlash meshing Download PDFInfo
- Publication number
- CN202390064U CN202390064U CN2011205095688U CN201120509568U CN202390064U CN 202390064 U CN202390064 U CN 202390064U CN 2011205095688 U CN2011205095688 U CN 2011205095688U CN 201120509568 U CN201120509568 U CN 201120509568U CN 202390064 U CN202390064 U CN 202390064U
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- China
- Prior art keywords
- racks
- tooth bar
- gears
- elastic
- bearing
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Abstract
The utility model discloses a transmission structure of gears and racks of a construction hoist and free of gear backlash meshing, which comprises a fixedly connected machine frame, a plurality of gears movably connected onto the machine frame and the racks matched with the gears. A plurality of rigid couplings and a plurality of elastic couplings are movably arranged on the machine frame at the back of the racks. Each elastic coupling comprises a middle shaft, a bearing is sleeved outside the middle shaft, an elastic rubber sleeve is sleeved outside the bearing and sealed with an end surface of the bearing, and the other end of the elastic rubber sleeve is in sealing connection through a gland and a retainer ring. Through holes are arranged on the glands, lubricating nipples are screwed on the glands. The elastic couplings are in elastic contact with the surfaces of the racks. The space between the circumferential surfaces of the elastic couplings and the back surfaces of the racks is 0.3-0.5 mm. The transmission mechanism ensures the stable gap between the gears and the racks by adding the two elastic couplings and can greatly improve device operation stability and prolong device service life.
Description
Technical field
The utility model relates to the elevator drive components field, and concrete is a kind of no gear back lash ingear drive mechanism of a kind of building hoist gear, tooth bar.
Background technology
The motion of SC/SCD elevator leans on motor through reductor driven gear and the engagement of standard knot upper rack, the motor gyroscopic movement is become the straight-line motion up and down of elevator.Type of drive is because gear and tooth bar manufacturing errors now; Straightness error instability generation vibration after the track integral installation in the motion process intermediate gap; Therefore to gear, the life-span of tooth bar and complete machine stability all have very big influence, and speed-raising has also been received certain restriction.
The utility model content
The utility model invention mainly is to have increased by two elastic wheels to gap instability between gear and the tooth bar; Be used to compensate gear and tooth bar motion intermediate gap; Transmission device rotates through gear and moves in orbit up and down along tooth bar, and tooth bar is between gear and rigidity clutch.Adjust the clearance is too small between rack-and-gear and rigidity clutch, and impurity and dust are arranged in operational process, tooth bar, and gear error is installed straightness error, and tooth bar is connected dislocation or the like reason with tooth bar all can cause device damage.Adjust the clearance is excessive between rack-and-gear and rigidity clutch, and vibrations in service will increase, and will significantly reduce equipment life.Increase by two elastic wheels and guarantee gear and the stable gap of tooth bar, can greatly improve stable equipment operation property, prolong service life of equipment.
The technical scheme of the utility model:
A kind of no gear back lash ingear drive mechanism of building hoist gear, tooth bar; The frame that comprises captive joint; Plurality of gears is rotationally connected on the described frame; And the tooth bar that cooperatively interacts with it, it is characterized in that: be rotatablely equipped with a plurality of rigidity clutches and elasticity clutch on the frame at the described tooth bar back side; Described elasticity clutch comprises axis, and middle outer shaft sleeve has bearing, the flexible rubber coating of bearing outside, and the side seal of described elastic caoutchouc cover and bearing, the other end connects through gland, retaining ring sealing, has through hole on the described gland and has screwed togather oil nozzle.
A kind of no gear back lash ingear drive mechanism of described building hoist gear, tooth bar is characterized in that: described elasticity clutch and described rack surface Elastic Contact; The periphery of described rigidity clutch and the tooth bar back side is 0.3 ~ 0.5mm at interval.
The advantage of the utility model:
The utility model guarantees gear and the stable gap of tooth bar through increasing by two elastic wheels, can greatly improve stable equipment operation property, prolongs service life of equipment.
Description of drawings
Fig. 1 is the utility model structure one scheme drawing.
Fig. 2 is the part-structure enlarged drawing of the utility model.
Fig. 3 is the utility model structure two scheme drawings.
The specific embodiment
Referring to accompanying drawing; A kind of no gear back lash ingear drive mechanism of building hoist gear, tooth bar; The frame 1 that comprises captive joint; The plurality of gears 2 that is rotationally connected on the described frame 1, and the tooth bar 3 that cooperatively interacts with it are rotatablely equipped with a plurality of rigidity clutches 4 and elasticity clutch 5 on the frame 1 at tooth bar 3 back sides; Described elasticity clutch 5 comprises axis 6; The axis 6 outer bearings 7 that are with; The flexible rubber coating 8 of bearing 7 overcoats, the side seal of described elastic caoutchouc cover 8 and bearing 7, the other end is tightly connected through gland 9, back-up ring 10; Have through hole on the described gland 9 and screwed togather oil nozzle 11, elasticity clutch 5 contacts with described tooth bar 3 surface elasticities; The periphery of described rigidity clutch 4 and tooth bar 3 back sides are 0.3 ~ 0.5mm at interval.
Claims (2)
1. a kind of no gear back lash ingear drive mechanism of building hoist gear, tooth bar; The frame that comprises captive joint; Plurality of gears is rotationally connected on the described frame; And the tooth bar that cooperatively interacts with it, it is characterized in that: be rotatablely equipped with a plurality of rigidity clutches and elasticity clutch on the frame at the described tooth bar back side; Described elasticity clutch comprises axis, and middle outer shaft sleeve has bearing, the flexible rubber coating of bearing outside, and the side seal of described elastic caoutchouc cover and bearing, the other end connects through gland, retaining ring sealing, has through hole on the described gland and has screwed togather oil nozzle.
2. a kind of no gear back lash ingear drive mechanism of building hoist gear according to claim 1, tooth bar is characterized in that: described elasticity clutch and described rack surface Elastic Contact; The periphery of described rigidity clutch and the tooth bar back side is 0.3 ~ 0.5mm at interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205095688U CN202390064U (en) | 2011-12-09 | 2011-12-09 | Transmission structure of gears and racks of construction hoist and free of gear backlash meshing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205095688U CN202390064U (en) | 2011-12-09 | 2011-12-09 | Transmission structure of gears and racks of construction hoist and free of gear backlash meshing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202390064U true CN202390064U (en) | 2012-08-22 |
Family
ID=46665004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205095688U Expired - Fee Related CN202390064U (en) | 2011-12-09 | 2011-12-09 | Transmission structure of gears and racks of construction hoist and free of gear backlash meshing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202390064U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016682A (en) * | 2012-12-26 | 2013-04-03 | 王俊峰 | Gear and rack transmission mechanism of lifting machine and adjustable elastic coupling device |
| CN104803257A (en) * | 2015-03-25 | 2015-07-29 | 南宁市宏涛机械设备有限责任公司 | Lifter having anti-falling function |
| CN107842318A (en) * | 2017-11-20 | 2018-03-27 | 中石化石油机械股份有限公司 | A kind of gear rack drilling machine lifting device |
| CN109051785A (en) * | 2018-09-12 | 2018-12-21 | 湖州海控印刷设备科技有限公司 | A kind of quick paper feeder |
-
2011
- 2011-12-09 CN CN2011205095688U patent/CN202390064U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016682A (en) * | 2012-12-26 | 2013-04-03 | 王俊峰 | Gear and rack transmission mechanism of lifting machine and adjustable elastic coupling device |
| CN103016682B (en) * | 2012-12-26 | 2015-07-29 | 安徽丰海起重设备制造有限公司 | Elevator rack rack gear and adjustable elastic clutch device |
| CN104803257A (en) * | 2015-03-25 | 2015-07-29 | 南宁市宏涛机械设备有限责任公司 | Lifter having anti-falling function |
| CN107842318A (en) * | 2017-11-20 | 2018-03-27 | 中石化石油机械股份有限公司 | A kind of gear rack drilling machine lifting device |
| CN107842318B (en) * | 2017-11-20 | 2024-04-26 | 中石化石油机械股份有限公司 | Gear rack drilling machine lifting device |
| CN109051785A (en) * | 2018-09-12 | 2018-12-21 | 湖州海控印刷设备科技有限公司 | A kind of quick paper feeder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |