CN204324733U - A kind of corner-type range limiter - Google Patents
A kind of corner-type range limiter Download PDFInfo
- Publication number
- CN204324733U CN204324733U CN201420688191.0U CN201420688191U CN204324733U CN 204324733 U CN204324733 U CN 204324733U CN 201420688191 U CN201420688191 U CN 201420688191U CN 204324733 U CN204324733 U CN 204324733U
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- gear
- worm
- corner
- type range
- range limiter
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Abstract
Technical problem to be solved in the utility model is to provide a kind of corner-type range limiter, comprise shell, described shell is built with switch, worm and gear, it is characterized in that, gear on worm is equipped with in the coaxial below of described worm screw, described gear on worm drives the first pinion rotation, coaxial installation the second gear above described first gear, described second gears meshing the 3rd gear; Described gear on worm drives the first gear to complete first time deceleration, and described first gear completes second time deceleration through the second gear of coaxial rotation, and described second gears meshing drives the 3rd gear to complete third time deceleration; Described 3rd gear is coaxially installed with cam, and described cam rotates trigger switch.The utility model compares original limiting device, have employed less gear, saves taking and consumptive material of space, and is not horizontal arrangement at the spatial arrangement of gear, and space is more saved.The utility model housing is solid, and quality is light, not easily breaks, is out of shape and waterproof.
Description
Technical field
The utility model relates to a kind of limiting device, particularly relates to a kind of corner-type range limiter.
Background technology
At present, limiting device is used in the control circuit of tower crane or portal crane machinery and similar machinery.If do not have limiting device to control, in mechanical work process, crane rotation or lifting process are by the scope of uncontrollable machine run, thus easily cause the damage of equipment, and serious causes personal injury.Just mechanical equipment normal operation can be ensured after mounting limit device.Corner-type range limiter gear structure inside was complicated in the past, and product structure is complicated, percentage error is large, tooling cost is high, installation is complicated.Shelling machine aspect is in order to cost-saving fairly simple and thin.Drive shaft sleeve uses nylon plastic material wear resisting property lower.Service life is not high.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of corner-type range limiter, its can improve running precision, increase service life, for this reason, the utility model by the following technical solutions:
A kind of corner-type range limiter, comprise shell, described shell is built with switch, worm and gear, it is characterized in that, gear on worm is equipped with in the coaxial below of described worm screw, described gear on worm drives the first pinion rotation, coaxial installation the second gear above described first gear, described second gears meshing the 3rd gear; Described gear on worm drives the first gear to complete first time deceleration, and described first gear completes second time deceleration through the second gear of coaxial rotation, and described second gears meshing drives the 3rd gear to complete third time deceleration; Described 3rd gear is coaxially installed with cam, and described cam rotates trigger switch.The utility model through three governing speeds, trigger switch.The arrangement of gear, saves space and material.The utility model compares original limiting device, have employed less gear, saves taking and consumptive material of space, and is not horizontal arrangement at the spatial arrangement of gear, and space is more saved.Because decrease gear, also reduce percentage error simultaneously, make operation more accurate.
On the basis adopting technique scheme, the utility model also can adopt following further technical scheme:
The diameter of described second gear is less than the first gear, and described 3rd gear diameter is greater than the second gear.
The gear wheel shaft of described second gear is connected to above the gear wheel shaft of described worm and gear gear.
Described switch is arranged on above described second gear.
Above described second gear, switch is housed.
Described shell aluminium alloy compression casting is shaping.
Gear wheel shaft all overlaps has highdensity copper based powder metallurgy material to make gear wheel shaft resistance to abrasion higher, improves service life, and, reduce percentage error.
Owing to adopting the technical solution of the utility model, the beneficial effects of the utility model are: the utility model structure is simple, save space, run accurately, the incidence of long service life, reduction accident; The utility model housing is solid, and quality is light, not easily breaks, is out of shape and waterproof.
Accompanying drawing explanation
A kind of corner-type range limiter cutaway view that Fig. 1 provides for the utility model.
Fig. 2 removes the block diagram of upper cover for a kind of corner-type range limiter that the utility model provides.
Detailed description of the invention
The corner-type range limiter of four gear changes of current employing, left side is wheel for inputting, and right side is the output wheel that top connects cam, and current method consumptive material is many, space hold is large.
With reference to attached Fig. 1 and 2, the utility model comprises shell, described shell comprises upper cover 11 and lower cover 12, described shell is built with switch 2, worm and gear 3 and potential device 4, described potential device 4 is controlled and is regulated worm and gear 3 processed, described worm screw drives the first pinion rotation 5 by the coaxial mounted gear on worm 31 in below, coaxial installation the second gear 6 above described first gear 5, and described second gear 6 engages the 3rd gear 7; Described gear on worm 31 drives the first gear 5 to complete deceleration for the first time, and described first gear 5 completes second time deceleration through the second gear 6 of coaxial rotation, and described second gear 6 engages drive the 3rd gear 7 and completes third time deceleration.Described 3rd gear 7 is coaxially installed with cam 8, and described cam 8 rotates trigger switch 2.
The gear wheel shaft of described second gear 6 is connected to above the gear wheel shaft of described worm and gear gear 31.
Described switch 2 is arranged on above described second gear 6.
Above described second gear 6, switch 2 is housed.
Described shell aluminium alloy compression casting is shaping.
The outer shifting signal of controlled machinery is needed to be connected with the potential device 4 of corner-type range limiter of the present utility model after external change gear speed change, potential device 4 controls worm and gear 3 supercharging, be with moving cam 8 to rotate trigger switch 2 after worm and gear 3 transmission three gear changes, power supply disconnected or closes.Compare original limiting device, have employed less gear, save taking and consumptive material of space, and be not horizontal arrangement at the spatial arrangement of gear, space is more saved.Because decrease gear, also reduce percentage error simultaneously, make operation more accurate.
Claims (5)
1. a corner-type range limiter, comprise shell, described shell is built with switch, worm and gear, it is characterized in that, gear on worm is equipped with in the coaxial below of described worm screw, described gear on worm drives the first pinion rotation, coaxial installation the second gear above described first gear, described second gears meshing the 3rd gear; Described gear on worm drives the first gear to complete first time deceleration, and described first gear completes second time deceleration through the second gear of coaxial rotation, and described second gears meshing drives the 3rd gear to complete third time deceleration; Described 3rd gear is coaxially installed with cam, and described cam rotates trigger switch.
2. a kind of corner-type range limiter as claimed in claim 1, is characterized in that, the gear wheel shaft of described second gear is above the gear wheel shaft of described worm and gear gear.
3. a kind of corner-type range limiter as claimed in claim 1, is characterized in that, described switch is arranged on above described second gear.
4. a kind of corner-type range limiter as claimed in claim 1, is characterized in that, above described second gear, switch is housed.
5. a kind of corner-type range limiter as claimed in claim 1, is characterized in that, described shell aluminium alloy compression casting is shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420688191.0U CN204324733U (en) | 2014-11-17 | 2014-11-17 | A kind of corner-type range limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420688191.0U CN204324733U (en) | 2014-11-17 | 2014-11-17 | A kind of corner-type range limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204324733U true CN204324733U (en) | 2015-05-13 |
Family
ID=53161113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420688191.0U Active CN204324733U (en) | 2014-11-17 | 2014-11-17 | A kind of corner-type range limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204324733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107773996A (en) * | 2017-11-27 | 2018-03-09 | 北京华夏中天文化传媒有限公司 | Silk ribbon performance property |
-
2014
- 2014-11-17 CN CN201420688191.0U patent/CN204324733U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107773996A (en) * | 2017-11-27 | 2018-03-09 | 北京华夏中天文化传媒有限公司 | Silk ribbon performance property |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |