CN112628368A - Helical gear rack transmission mechanism - Google Patents
Helical gear rack transmission mechanism Download PDFInfo
- Publication number
- CN112628368A CN112628368A CN202011554295.9A CN202011554295A CN112628368A CN 112628368 A CN112628368 A CN 112628368A CN 202011554295 A CN202011554295 A CN 202011554295A CN 112628368 A CN112628368 A CN 112628368A
- Authority
- CN
- China
- Prior art keywords
- helical
- main shaft
- helical gear
- rack
- driving device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 title claims abstract description 13
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000004023 plastic welding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
- F16H19/043—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack for converting reciprocating movement in a continuous rotary movement or vice versa, e.g. by opposite racks engaging intermittently for a part of the stroke
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0018—Shaft assemblies for gearings
- F16H57/0025—Shaft assemblies for gearings with gearing elements rigidly connected to a shaft, e.g. securing gears or pulleys by specially adapted splines, keys or methods
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a helical gear rack transmission mechanism, which comprises a lifting platform, a lifting driving device, a main shaft, a helical gear and a helical rack, wherein the lifting platform is arranged on the lifting platform; the lifting driving device is fixedly arranged on the lifting platform and drives the main shaft to rotate, the helical gear is arranged on the main shaft, the helical rack is fixed, and the helical gear is meshed with the helical rack; the lifting driving device of the scheme drives the helical gear to be matched with the helical rack through the main shaft, a coupling part is omitted, and the structure is simplified; and the transmission structure of the helical gear and the rack has higher precision, stronger load capacity and smaller noise, and improves the running stability and texture of machine equipment.
Description
Technical Field
The invention relates to a helical gear rack transmission mechanism.
Background
The existing plastic welding equipment generally designs a lower die frame as a lifting mechanism to be matched with an upper die and a hot die to weld a plastic workpiece, and the lower die frame is generally controlled to lift by a straight gear rack mechanism; however, the straight gear rack mechanism needs to use a coupling component, certain noise exists in the transmission process, and the precision and the load capacity are slightly deficient.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a helical gear and rack transmission mechanism.
In order to achieve the purpose, the invention adopts the technical scheme that: a helical gear rack transmission mechanism comprises a lifting platform, a lifting driving device, a main shaft, a helical gear and a helical rack; the lifting driving device is fixedly arranged on the lifting platform and drives the main shaft to rotate, the helical gear is arranged on the main shaft, the helical rack is fixed, and the helical gear is meshed with the helical rack.
Preferably, a set of helical gear and helical rack is respectively arranged at two ends of the main shaft.
Preferably, a flange plate, a tensioning sleeve and a rotation stopping gasket are arranged at the end part of the main shaft, the flange plate and the tensioning sleeve are sleeved on the main shaft and fixedly connected with the helical gear, the tensioning sleeve is used for tensioning the flange plate, and the rotation stopping gasket is matched with the tensioning sleeve and fixedly connected with the main shaft.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the helical gear rack transmission mechanism, the lifting driving device drives the helical gear to be matched with the helical gear rack through the main shaft, a coupling part is omitted, and the structure is simplified; and the transmission structure of the helical gear and the rack has higher precision, stronger load capacity and smaller noise, and improves the running stability and texture of machine equipment.
Drawings
The technical scheme of the invention is further explained by combining the accompanying drawings as follows:
FIG. 1 is a schematic structural view of a helical gear and rack transmission mechanism according to the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic view of a cross-sectional mounting structure of a helical gear according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1-3, the helical gear rack transmission mechanism according to the present invention comprises a lifting table 1, a lifting driving device 2, a main shaft 3, a helical gear 4 and a helical rack 5.
The lifting platform 1 is a lower platform of plastic welding equipment and is used for installing a lower die, the lifting driving device 2 is fixedly installed at the bottom of the lifting platform 1, the lifting driving device 2 is a speed reducing motor, and the lifting driving device 2 is matched with the middle part of the main shaft 3 to drive the main shaft 3 to rotate; the two ends of the main shaft 3 are matched with the two side parts of the lifting platform 1 through bearings, the two ends of the main shaft 3 are respectively provided with a helical gear 4, the two sides of the lifting platform 1 are respectively provided with a helical rack 5, the helical racks 5 are fixedly arranged on a machine main body, and the helical gears 4 are meshed with the helical racks 5.
The installation and fixing structure of the bevel gear 4 is characterized in that a flange plate 6, a tensioning sleeve 7 and a rotation stopping gasket 8 are arranged at the end part of the main shaft 3, the flange plate 6 and the tensioning sleeve 7 are sleeved on the main shaft 3, the flange plate 6 is fixedly connected with the bevel gear 4, the tensioning sleeve 7 is used for tensioning the flange plate 6, the rotation stopping gasket 8 is fixedly installed on the end surface of the main shaft 3 through bolts, the rotation stopping gasket 8 is matched with the tensioning sleeve 7, and the bevel gear 4 is fixedly installed on the main shaft 3 through the tensioning sleeve 7 and the flange plate 6.
The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (3)
1. A helical gear rack transmission mechanism is characterized in that: comprises a lifting platform (1), a lifting driving device (2), a main shaft (3), a helical gear (4) and a helical rack (5); the lifting driving device (2) is fixedly arranged on the lifting platform (1), the lifting driving device (2) drives the main shaft (3) to rotate, the helical gear (4) is arranged on the main shaft, the helical rack (5) is fixed, and the helical gear (4) is meshed with the helical rack (5).
2. The helical rack and pinion drive of claim 1, wherein: and two ends of the main shaft (3) are respectively provided with a group of helical gears (4) and helical racks (5).
3. The helical rack and pinion drive of claim 1, wherein: the end part of the main shaft (3) is provided with a flange plate (6), a tensioning sleeve (7) and a rotation stopping gasket (8), the flange plate (6) and the tensioning sleeve (7) are sleeved on the main shaft (3), the flange plate (6) is fixedly connected with the helical gear (4), the tensioning sleeve (7) is used for tensioning the flange plate (6), and the rotation stopping gasket (8) is matched with the tensioning sleeve (7) and is fixedly connected with the main shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011554295.9A CN112628368A (en) | 2020-12-24 | 2020-12-24 | Helical gear rack transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011554295.9A CN112628368A (en) | 2020-12-24 | 2020-12-24 | Helical gear rack transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112628368A true CN112628368A (en) | 2021-04-09 |
Family
ID=75324699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011554295.9A Pending CN112628368A (en) | 2020-12-24 | 2020-12-24 | Helical gear rack transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112628368A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323464A (en) * | 2021-05-14 | 2021-08-31 | 合肥巍华智能停车设备有限公司 | Intelligence parking elevating gear |
| CN116373480A (en) * | 2023-06-01 | 2023-07-04 | 珠海芯烨电子科技有限公司 | Deflection-preventing tensioning structure and method |
-
2020
- 2020-12-24 CN CN202011554295.9A patent/CN112628368A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323464A (en) * | 2021-05-14 | 2021-08-31 | 合肥巍华智能停车设备有限公司 | Intelligence parking elevating gear |
| CN116373480A (en) * | 2023-06-01 | 2023-07-04 | 珠海芯烨电子科技有限公司 | Deflection-preventing tensioning structure and method |
| CN116373480B (en) * | 2023-06-01 | 2023-08-18 | 珠海芯烨电子科技有限公司 | Deflection-preventing tensioning structure and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 215000 in Fumin Industrial Park (kelbo Industrial Park), north of Dongshan Avenue, Linhu Town, Wuzhong District, Suzhou City, Jiangsu Province Applicant after: Suzhou Kaierbo Technology Co.,Ltd. Address before: 215000 in Fumin Industrial Park (kelbo Industrial Park), north of Dongshan Avenue, Linhu Town, Wuzhong District, Suzhou City, Jiangsu Province Applicant before: SUZHOU KEBER PRECISION MACHINERY Co.,Ltd. |
|
| CB02 | Change of applicant information |