CN209815563U - Large-tonnage jacking device - Google Patents
Large-tonnage jacking device Download PDFInfo
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- CN209815563U CN209815563U CN201920412235.XU CN201920412235U CN209815563U CN 209815563 U CN209815563 U CN 209815563U CN 201920412235 U CN201920412235 U CN 201920412235U CN 209815563 U CN209815563 U CN 209815563U
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- screw rod
- jacking
- lead screw
- tonnage
- jacking device
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Abstract
The utility model discloses a large-tonnage jacking device, it includes a base, be equipped with a main lead screw and motor on the base, lead screw and outer lead screw in having cup jointed on the main lead screw, be equipped with the planet lead screw between base and the outer tube, be equipped with the reducing gear box between motor output and the main lead screw, the motor drives main lead screw, jacking action is done along the planet lead screw to interior lead screw and outer lead screw, and motor and reducing gear box do jacking action along the main lead screw, the planet lead screw can be fixed in on the base with rotating, main lead screw still drives the planet lead screw and rotates, main lead screw and planet lead screw thread revolve to opposite. The utility model discloses a accomplish the two-stage jacking with a motor, increased the jacking stroke to satisfy large-tonnage jacking demand.
Description
Technical Field
The utility model relates to a jacking, hoisting accessory technical field specifically are a large-tonnage jacking device.
Background
At present, the jacking devices are mainly divided into two types according to jacking modes, one type adopts hydraulic jacking, and although the hydraulic jacking has large jacking force and multistage jacking, the problems of aging and oil leakage of a sealing ring exist in the aspect of use, and the use of the hydraulic jacking is greatly influenced by the environment; the other type of jacking device adopts screw rod jacking, and the jacking device adopting the screw rod jacking mode can only jack one stage though the jacking device is provided with a motor and a counting reduction box and can be manufactured into an electric type. In addition, if a form of a sleeving screw rod is adopted, although the purpose of extending out of two stages can be achieved, the sleeving screw rod can only be used on occasions with lighter jacking weight, the sleeving screw rod is usually a primary locked-rotor driving secondary screw rod to rotate, so that jacking of large tonnage often needs a reliable locked-rotor scheme, and a jacking device designed usually is heavy.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the large-tonnage jacking device realizes two-stage jacking by using one motor, increases jacking stroke, and meets the requirement of large-tonnage jacking.
The utility model adopts the technical proposal that: the planetary screw rod can be rotationally fixed on the base, the main screw rod further drives the planetary screw rod to rotate, and the thread turning directions of the main screw rod and the planetary screw rod are opposite.
Preferably, the inner screw rod is sleeved on the main screw rod, the outer screw rod is sleeved on the inner screw rod, and the inner screw rod can perform jacking action along the outer screw rod along with the rotation of the main screw rod.
Preferably, a speed reduction transmission gear is arranged in the reduction gearbox, and the motor drives the main screw rod to perform jacking action through the transmission gear.
Preferably, the reduction gearbox is provided with a nut, a planetary gear is arranged between the planetary screw and the reduction gearbox, the nut is connected with the planetary gear, and the planetary screw drives the reduction gearbox to lift up through the nut and the planetary gear.
Preferably, the main screw rod and the planetary screw rod are self-locking screw rods.
Preferably, the motor is vertically disposed.
Preferably, the number of the planetary screw rods is more than two, and the planetary screw rods are distributed along the outer pipe in an annular array.
Preferably, a foldable triangular support is arranged on the base and used for supporting the jacking device.
Preferably, the reduction gearbox is provided with a hand-operated interface used for manually fine-tuning the jacking action stroke of the reduction gearbox and used as a limit switch for the jacking stroke of the main screw rod.
The utility model discloses a large-tonnage jacking device, its advantage is as follows: 1. the two-stage jacking is completed by one motor, and the jacking stroke is increased; 2. the utility model can be realized by only arranging a limit switch on the jacking stroke, which is different from the traditional locked-rotor two-stage screw rod transmission; 3. compared with the traditional jacking device under the condition of the same tonnage, the self weight of the utility model is relatively light; 4. the lead screw adopts self-locking lead screw such as trapezoidal lead screw, has not only reduced locking mechanism, and the static load that can bear is big moreover, and safe and reliable.
Drawings
Fig. 1 is a cross-sectional view of the lead screw folding structure of the large-tonnage jacking device of the utility model.
Fig. 2 is a cross-sectional view of the screw rod jacking structure of the large-tonnage jacking device of the utility model.
Fig. 3 is a perspective view of a lead screw folding structure of the large-tonnage jacking device of the utility model.
Fig. 4 is a perspective view of the screw rod jacking structure of the large-tonnage jacking device of the utility model.
Fig. 5 is a structural plan view of the large-tonnage jacking device of the utility model.
The device comprises a base 1, a base 2, a main screw rod 3, a motor 4, an inner pipe 5, an outer pipe 6, a planetary screw rod 7, a reduction gearbox 8, a transmission gear 9, a nut 10, a planetary gear 11, a triangular support 12 and a hand-operated interface.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1 and 3, the utility model provides a large-tonnage jacking device, it includes a base 1, be equipped with a main lead screw 2 and a vertical motor 3 of placing on the base 1, cup jointed inner tube 4 and outer tube 5 on the main lead screw 2, be equipped with planet lead screw 6 between base 1 and the outer tube 5, be equipped with reducing gear box 7 between motor 3 output and the main lead screw 2, be equipped with speed reduction drive gear 8 in the reducing gear box 7, motor 3 drives main lead screw 2 through drive gear 8 and makes the jacking action. Therefore, the motor 3 drives the main screw rod 2, the inner tube 4 and the outer tube 5 to perform jacking action along the planetary screw rod 6, the motor 3 and the reduction box 7 perform jacking action along with the main screw rod 2, the planetary screw rod 6 can be rotationally fixed on the base 1, the planetary screw rod 6 is sleeved with the planetary gear 10, the planetary gear 10 is meshed with the transmission gear 8, the main screw rod 2 drives the planetary screw rod 6 to rotate through the planetary gear 10, the thread turning directions of the main screw rod 2 and the planetary screw rod 6 are opposite, and the jacking action of the main screw rod 2, the inner tube 4 and the outer tube 5 along the planetary screw rod 6 is realized.
As shown in fig. 2 and 4, the inner tube 4 is sleeved on the main screw rod 2, the outer tube 5 is sleeved on the inner tube 4, and the inner tube 4 is pushed by a shaft sleeve sleeved on the main screw rod 2 to lift up along the main screw rod 2.
The reduction gearbox 7 is provided with a nut 9, the nut 9 is fixedly connected with a planetary gear 10, the nut 9 rotates along with the planetary gear 10, and the planetary screw 6 drives the reduction gearbox 7 to lift up through the nut 9 and the planetary gear 10.
The main screw rod 2 and the planet screw rod 6 are self-locking screw rods, such as trapezoidal screw rods, so that under the premise of ensuring self-locking during bearing, other self-locking structures do not need to be installed, and particularly during loading, the purpose of a self-locking jack is achieved.
As shown in fig. 5, the number of the planetary screws 6 is two or more, and the planetary screws are distributed along the outer tube 5 in an annular array, so that the rolling bodies of the planetary screws 6 are subjected to a large sectional area, are simultaneously loaded at any time, have no cyclic alternating stress, and avoid the main screw 2 from generating centrifugal force.
Be equipped with A-frame 11 on the base 1 for support jacking device, and A-frame 11 is collapsible, makes things convenient for the use and the transport of device.
The reduction gearbox 7 is provided with a hand interface 12 for manually fine-tuning the jacking stroke of the reduction gearbox 7 and serving as a limit switch for the jacking stroke of the main screw rod 2, which is different from the way that a first-stage screw rod drives a second-stage screw rod to transmit through a locked-rotor mode.
To sum up, the utility model discloses have two-stage jacking motion, the first order is that reducing gear box 7 makes the jacking action together with main lead screw 2, and the second grade makes inner tube 4 make the jacking action along outer tube 5 for the transmission of main lead screw 2, and the jacking action is made simultaneously to the two-stage.
While the above is directed to the preferred embodiment of the present invention, it is not intended that it be limited, except as by the appended claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for changes, all the changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.
Claims (9)
1. Large-tonnage jacking device, its characterized in that: the planetary screw rod can be rotationally fixed on the base, the main screw rod further drives the planetary screw rod to rotate, and the threads of the main screw rod and the planetary screw rod are opposite in rotating direction.
2. The large-tonnage jacking device according to claim 1, characterized in that: the inner pipe is sleeved on the main screw rod, the outer pipe is sleeved on the inner pipe, and the inner pipe can perform jacking action along the outer pipe along with the rotation of the main screw rod.
3. The large-tonnage jacking device according to claim 1, characterized in that: a speed reduction transmission gear is arranged in the reduction box, and the motor drives the main screw rod to perform jacking action through the transmission gear.
4. The large-tonnage jacking device according to claim 3, characterized in that: the reduction gearbox is provided with a nut, a planetary gear is arranged between the planetary screw rod and the reduction gearbox, the nut is connected with the planetary gear, and the planetary screw rod drives the reduction gearbox to lift up through the nut and the planetary gear.
5. The large-tonnage jacking device according to claim 1, characterized in that: the main screw rod and the planet screw rod are self-locking screw rods.
6. The large-tonnage jacking device according to claim 1, characterized in that: the motor is placed vertically.
7. The large-tonnage jacking device according to claim 1, characterized in that: the number of the planet screw rods is more than two, and the planet screw rods are distributed along the outer pipe in an annular array.
8. The large-tonnage jacking device according to claim 1, characterized in that: a foldable triangular support is arranged on the base and used for supporting the jacking device.
9. The large-tonnage jacking device according to claim 4, characterized in that: the reduction gearbox is provided with a hand-operated interface which is used for manually finely adjusting the jacking action stroke of the reduction gearbox and is used as a limit switch for the jacking stroke of the main screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920412235.XU CN209815563U (en) | 2019-03-28 | 2019-03-28 | Large-tonnage jacking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920412235.XU CN209815563U (en) | 2019-03-28 | 2019-03-28 | Large-tonnage jacking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209815563U true CN209815563U (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920412235.XU Active CN209815563U (en) | 2019-03-28 | 2019-03-28 | Large-tonnage jacking device |
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| Country | Link |
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| CN (1) | CN209815563U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028007A (en) * | 2019-03-28 | 2019-07-19 | 杭州恒宏机械有限公司 | Large-tonnage jacking apparatus |
-
2019
- 2019-03-28 CN CN201920412235.XU patent/CN209815563U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028007A (en) * | 2019-03-28 | 2019-07-19 | 杭州恒宏机械有限公司 | Large-tonnage jacking apparatus |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311232 red soil farm, Xiaoshan District, Zhejiang, Hangzhou Patentee after: Henghong Intelligent Equipment Co.,Ltd. Address before: 311232 red soil farm, Xiaoshan District, Zhejiang, Hangzhou Patentee before: HANGZHOU HENGHONG MACHINERY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |