CN2606025Y - Shroud lifting mechanism for engineering vehicle - Google Patents
Shroud lifting mechanism for engineering vehicle Download PDFInfo
- Publication number
- CN2606025Y CN2606025Y CN 03224306 CN03224306U CN2606025Y CN 2606025 Y CN2606025 Y CN 2606025Y CN 03224306 CN03224306 CN 03224306 CN 03224306 U CN03224306 U CN 03224306U CN 2606025 Y CN2606025 Y CN 2606025Y
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- CN
- China
- Prior art keywords
- driving gear
- axle
- screw mandrel
- plate
- shrinkage pool
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a shroud lifting mechanism for engineering vehicle and comprises an outer thimble, a screw mandrel, an electric engine, wherein, an automatic overload protective device is connected between the electric engine and the screw mandrel, and is provided with a driving gear, a driven gear, a shaft, an elastic pressure plate and a drive plate. The drive plate is clamped between the side of the driving gear and the elastic pressure plate, the side of the driving gear is provided with a ring-shaped groove which is provided with concave holes of uniform distribution on the surface, each through hole of the drive plate is embedded with balls clamped tightly between the side of the driving gear and the elastic pressure plate. The utility model avoids the accidents that the electric engine is burned down or the screw thread of the screw mandrel and the outer thimble is distorted and seized, and has the advantages of simplicity and safety.
Description
Technical field
The utility model belongs to a kind of vehicle matching component, is specifically related to a kind of lifting mechanism that is used to raise engineering truck driving engine outside housing cover.
Background technology
Engineering truck outside housing cover lifting mechanisms such as existing excavating machine, bulldozer, loader have manpower and electronic two kinds of forms, powered version is that power drives the screw mandrel rotation with the electrical motor, make the outer tube that directly links to each other rise or descend, reset thereby make the outside housing cover lifting raise or descend with outside housing cover.Above-mentioned engineering truck outside housing cover lifting mechanism mostly is not provided with the automatic spacing device, the outer tube stroke that might overstep the extreme limit in operating process, both accidents such as stuck of screw thread distortion, screw mandrel and outer tube of burn-down of electric motor, screw mandrel or outer tube take place easily, even there is fraction engineering truck outside housing cover lifting mechanism to be provided with automatic spacing devices such as travel switch, also, thereby still can't avoid the generation of above-mentioned accident conscientiously because circuit controling element such as travel switch damages easily.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned shortcoming and a kind of engineering truck outside housing cover lifting mechanism is provided, and it can avoid both accidents such as stuck of screw thread distortion, screw mandrel and outer tube of burn-down of electric motor, screw mandrel or outer tube conscientiously from the angle of physical construction.
Its purpose can realize by following scheme: this project car outside housing cover lifting mechanism comprises motor and outer tube; be provided with screw mandrel in the outer tube with its thread connection; between motor and screw mandrel, be provided with reduction gearing mechanism; its principal feature is; this reduction gearing mechanism is serially connected with the automatic overload protection device; the automatic overload protection device has the driving gear as input end; driven gear as mouth; the axle that driving gear and driven gear are shared; spring bearer plate; driver plate; driven gear is captiveed joint and driving gear and axle pivot bush unit with axle; spring bearer plate be socketed in that axle is gone up and the plane at its place with spool direction vertical; driver plate is clipped between driving gear side and the spring bearer plate; driver plate and axle key connect; the driving gear side is provided with annular groove; be evenly equipped with several shrinkage pools on the annular groove; the degree of depth of shrinkage pool is greater than groove; driver plate is provided with and the shrinkage pool position; the cooresponding through hole of quantity; be embedded with ball in each through hole, each ball is clamped between driving gear side and the spring bearer plate.
Realization above-mentioned purpose scheme preferably is: the degree of depth of driving gear side shrinkage pool is less than 1/2 of ball diameter, and the degree of depth difference of shrinkage pool and groove is less than 1/3 of ball diameter.
The utlity model has following advantage and effect:
1, when outer tube is in the normal travel scope, each ball can not climb out of behind the shrinkage pool that falls into relevant position, driving gear side under the pressure effect of spring bearer plate respectively, driving gear, driver plate, the ball relative fixed is an one, driving gear rotates under driven by motor, thereby each ball sways under driving gear drives and drives the driver plate rotation, axle key owing to driver plate and driven gear connects again, driven gear is captiveed joint with axle, thereby driver plate can drive the driven gear rotation, thereby driving screw mandrel rotates, outer tube is axially moved under screw mandrel drives, the outside housing cover lifting is raised or descended reset.When outer tube moves to the end of travel end position, screw mandrel can not be rotated further, driven gear stops operating thereupon, and driving gear still under driven by motor not stall moving, the pressure that this moment, ball just can overcome spring bearer plate climbs out of the shrinkage pool of driving gear side, and roll along the annular groove track of driving gear side, make between driving gear and the driver plate slide relative takes place, the rotation of driving gear just can not be delivered to driven gear like this, thereby it is moving to keep static screw mandrel can't hinder motor to continue not stall, thereby can avoid taking place burn-down of electric motor, accidents such as the screw thread distortion of screw mandrel or overcoat.Move at above-mentioned outer tube under the state of end of travel end position, if motor counter-rotating, then ball is pressed in the shrinkage pool again, driving gear, driver plate, ball relative fixed again are one, screw mandrel is backward rotation under driven by motor, outer tube comes back to the normal travel scope, thereby makes the motion of outside housing cover respective opposed.
2, the utility model has been realized the function of " the automatic stop motion of outer tube limit travel and motor still can be rotated further " from the angle of physical construction, and this overcurrent protection structure has simple and reliable advantage.
Description of drawings
Fig. 1 is the cross-sectional view of a kind of specific embodiment of the utility model.
Fig. 2 is the cross-sectional view of automatic overload protection device shown in Figure 1.
Fig. 3 is the front view of driving gear among Fig. 2.
Fig. 4 is an A-A local section structural representation among Fig. 3.
Fig. 5 is a C-C cross-sectional view among Fig. 3.
Fig. 6 is the cross-sectional view of driver plate among Fig. 3.
The specific embodiment
Engineering truck outside housing cover lifting mechanism shown in Figure 1 comprises motor 1 and the outer tube 6 that directly links to each other with outside housing cover, be provided with the screw mandrel 5 with its thread connection in the outer tube 6, between the rotating shaft 11 of motor 1 and screw mandrel 5, be provided with the reduction gearing mechanism that forms by gear 3, automatic overload protection device 2, gear 4 serial connections; Fig. 2; Fig. 3; Fig. 4; Fig. 5; shown in Figure 6; automatic overload protection device 2 has the driving gear 23 as input end; driven gear 22 as mouth; the axle 21 that driving gear and driven gear are shared; spring steel plate 26; driver plate 24; spring steel plate 26 thickness are 1.5mm; driver plate 24 thickness are 4.0mm; driven gear 22 is connected to one with axle 21; and the hollow round hole 231 of driving gear 23 passes axle 21; make driving gear 23 and axle 21 pivot bush units; thereby the axle 21 circular hole (not shown)s of passing spring steel plate 26 central authorities make both sockets; the plane at spring steel plate 26 places is vertical with the direction of axle; driver plate 24 is clipped between driving gear 23 sides and the spring steel plate 26; driver plate 24 utilizes its slotted hole 241 and axle 21 keyed jointings; driving gear 23 sides are provided with annular groove 233; the degree of depth of groove is 1mm; be evenly equipped with six shrinkage pools 232 on the annular groove; the depth B of shrinkage pool is 2mm; driver plate 24 be provided with six respectively with the cooresponding through hole 242 in each shrinkage pool position; being embedded with diameter in each through hole is the ball 25 of 6.5mm, and each ball 25 is clamped between driving gear 23 sides and the spring steel plate 24.
In the present specification, the degree of depth of shrinkage pool or groove is meant their effective depth, promptly refers to the degree of depth of actual embedding when ball is inserted wherein.
Claims (2)
1; a kind of engineering truck outside housing cover lifting mechanism; comprise motor and outer tube; be provided with screw mandrel in the outer tube with its thread connection; between motor and screw mandrel, be provided with reduction gearing mechanism; it is characterized in that: this reduction gearing mechanism is serially connected with the automatic overload protection device; the automatic overload protection device has the driving gear as input end; driven gear as mouth; the axle that driving gear and driven gear are shared; spring bearer plate; driver plate; driven gear is captiveed joint and driving gear and axle pivot bush unit with axle; spring bearer plate be socketed in that axle is gone up and the plane at its place with spool direction vertical; driver plate is clipped between driving gear side and the spring bearer plate; driver plate and axle key connect; the driving gear side is provided with annular groove; be evenly equipped with several shrinkage pools on the annular groove; the degree of depth of shrinkage pool is greater than groove; driver plate is provided with and the shrinkage pool position; the cooresponding through hole of quantity is embedded with ball in each through hole, and each ball is clamped between driving gear side and the spring bearer plate.
2, according to the engineering truck outside housing cover lifting mechanism of claim 1, it is characterized in that: the degree of depth of driving gear side shrinkage pool is less than 1/2 of ball diameter, and the degree of depth difference of shrinkage pool and groove is less than 1/3 of ball diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03224306 CN2606025Y (en) | 2003-03-13 | 2003-03-13 | Shroud lifting mechanism for engineering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03224306 CN2606025Y (en) | 2003-03-13 | 2003-03-13 | Shroud lifting mechanism for engineering vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2606025Y true CN2606025Y (en) | 2004-03-10 |
Family
ID=34163300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03224306 Expired - Fee Related CN2606025Y (en) | 2003-03-13 | 2003-03-13 | Shroud lifting mechanism for engineering vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2606025Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192763A (en) * | 2014-08-22 | 2014-12-10 | 太原理工大学 | Automatic lifting mechanism for honing wheel electroplating |
| CN106617703A (en) * | 2017-03-08 | 2017-05-10 | 湖北牧鑫智能家居股份有限公司 | Novel automatic dining table |
| CN106724025A (en) * | 2017-03-08 | 2017-05-31 | 湖北牧鑫智能家居股份有限公司 | A kind of novel electric dining-table |
| CN106805477A (en) * | 2017-03-08 | 2017-06-09 | 湖北牧鑫智能家居股份有限公司 | Motor-driven dining table movement |
| CN111071128A (en) * | 2020-01-06 | 2020-04-28 | 王健 | Livestock forage grass piece conveyor |
-
2003
- 2003-03-13 CN CN 03224306 patent/CN2606025Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192763A (en) * | 2014-08-22 | 2014-12-10 | 太原理工大学 | Automatic lifting mechanism for honing wheel electroplating |
| CN104192763B (en) * | 2014-08-22 | 2016-05-25 | 太原理工大学 | A kind of top gem of a girdle-pendant wheel is electroplated automatic hoisting mechanism |
| CN106617703A (en) * | 2017-03-08 | 2017-05-10 | 湖北牧鑫智能家居股份有限公司 | Novel automatic dining table |
| CN106724025A (en) * | 2017-03-08 | 2017-05-31 | 湖北牧鑫智能家居股份有限公司 | A kind of novel electric dining-table |
| CN106805477A (en) * | 2017-03-08 | 2017-06-09 | 湖北牧鑫智能家居股份有限公司 | Motor-driven dining table movement |
| CN111071128A (en) * | 2020-01-06 | 2020-04-28 | 王健 | Livestock forage grass piece conveyor |
| CN111071128B (en) * | 2020-01-06 | 2022-04-19 | 重庆市天友乳业股份有限公司 | Livestock forage grass piece conveyor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |