CN209685221U - A kind of motor-driven jack - Google Patents
A kind of motor-driven jack Download PDFInfo
- Publication number
- CN209685221U CN209685221U CN201920001835.7U CN201920001835U CN209685221U CN 209685221 U CN209685221 U CN 209685221U CN 201920001835 U CN201920001835 U CN 201920001835U CN 209685221 U CN209685221 U CN 209685221U
- Authority
- CN
- China
- Prior art keywords
- motor
- retarder
- planetary roller
- pedestal
- roller screw
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of motor-driven jacks, including planetary roller screw, retarder and motor, the input shaft of the retarder is connect with the shaft of the motor, the output shaft of the retarder is connect with the planetary roller screw, the retarder is fixed on pedestal, and front wheels and rear wheels are respectively set in the front-end and back-end of the pedestal.Compared with prior art, the utility model has bearing capacity and rigidity high using planetary roller screw, and speed, acceleration is high, and operating environment requirements are low, are readily disassembled, characteristic easy to maintain.Gear reducer mechanism cooperates planetary roller mechanism, and motor-driven jack can be made to reach stable, efficient, had the value of popularization and application.
Description
Technical field
The utility model relates to a kind of lifting machinery more particularly to a kind of motor-driven jacks.
Background technique
In actual production practices, when the weight for encountering some volumes or weight considerably beyond human body need it is mobile or
When the case where person is sling, it is difficult to complete only according to manpower, just needs to use jack at this time.In addition to this, auto repair,
The fields such as earthquake relief work, railway, medical rescue, logistics are even more widely applied, therefore developing into one, step for jack technology will
Directly or indirectly influence the operating in these fields.Existing jack can be divided into rack-and-pinion by its different type of the kind of drive
Formula jack, hydraulic jack, screw jack, Inflated jack.Although it is used extensively in every field,
They have some disadvantages.Conventional hydraulic jacks transmission device intrinsic " run, emit, leaking, dripping " etc., environmental suitability
Difference, the disadvantages of reliability is low, working service is poor.The working efficiency of screw jack is lower, rises slowly, decline is fast, safety
It is bad.Rack-jack haves the shortcomings that supported weight is small.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of motor-driven jack.
The utility model achieves the above object through the following technical schemes:
The utility model includes planetary roller screw, retarder and motor, the input shaft of the retarder and the electricity
The shaft of motivation connects, and the output shaft of the retarder is connect with the planetary roller screw, and the retarder is fixed on pedestal
On, front wheels and rear wheels are respectively set in the front-end and back-end of the pedestal.
As an improvement, the upper front end of the pedestal is provided with spring.
Preferably, the upper rear end of the pedestal is fixedly installed dragging pull rod.
Specifically, the speed reducer is made of pinion gear, gear wheel, worm screw and turbine, the pinion gear with it is described electronic
The shaft of machine connects, and the pinion gear and the ratcheting connection of the gear wheel, the gear wheel are fixedly and coaxially connected with the worm screw,
The worm screw and the ratcheting connection of the turbine, the middle part of the turbine is connect with the planetary roller screw.
The utility model has the beneficial effects that:
The utility model is a kind of motor-driven jack, and compared with prior art, the utility model uses planetary roller screw
There are bearing capacity and rigidity high, speed, acceleration is high, and operating environment requirements are low, are readily disassembled, characteristic easy to maintain.Slow down
Device mechanism cooperates planetary roller mechanism, and motor-driven jack can be made to reach stable, efficient, had the value of popularization and application.
Detailed description of the invention
Fig. 1 is the side structure schematic diagram of the utility model；
Fig. 2 is the overlooking structure diagram of the utility model；
Fig. 3 is the reducer structure schematic diagram of the utility model.
In figure: after 1- spring, 2- front-wheel, 3- planetary roller screw, 4- retarder, 5- motor, 6- dragging pull rod, 7-
Wheel, 41- pinion gear, 42- gear wheel, 43- worm screw, 44- turbine.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As depicted in figs. 1 and 2: the utility model includes planetary roller screw 3, retarder 4 and motor 5, the deceleration
The input shaft of device is connect with the shaft of the motor, and the output shaft of the retarder is connect with the planetary roller screw, institute
It states retarder to be fixed on pedestal, front-wheel 2 and rear-wheel 7 is respectively set in the front-end and back-end of the pedestal.
As an improvement, the upper front end of the pedestal is provided with spring 1.
Preferably, the upper rear end of the pedestal is fixedly installed dragging pull rod 6.
As shown in Figure 3: the speed reducer 4 is made of pinion gear 41, gear wheel 42, worm screw 43 and turbine 44, the small tooth
Wheel is connect with the shaft of the motor, the pinion gear and the ratcheting connection of the gear wheel, the gear wheel and the worm screw
It is fixedly and coaxially connected, the worm screw and the ratcheting connection of the turbine, the middle part of the turbine is connect with the planetary roller screw.
The core of the utility model is retarder and planetary roller screw structure.Load is big, and the power of transmitting is big, and
After rising to the height of needs, keeps safe and reliable and stop, therefore select two stage reducer, to obtain big reduction ratio.
Therefore, primary cylinder gear transmission is to obtain constant transmission ratio, higher transmission efficiency.Second-stage worm gear worm-drive, will be horizontal
To torque change into longitudinal torque, be transported to lead screw, to realize the lifting purpose of planetary roller screw, while its latching characteristics is full
Foot makes planetary roller screw be maintained at lift height after cutting off the power.
The utility model using be driven by electricity, brushless motor, first meet and configure the requirement that uses with vehicle, second electric energy is clear
It is clean and safe.
Using planetary roller screw, working principle is similar with planet gear transmission system, and roller rolls Shi Si in nut
The virtual internal screw thread that can accurately engage with lead screw is generated between thick stick and nut.Lead screw often rotates a circle, and roller is along straight ahead one
The axial displacement of a guide screw lead.Planetary roller screw has bearing capacity and rigidity high, and speed, acceleration is high, and working environment is wanted
It asks low, is readily disassembled, characteristic easy to maintain.Gear reducer mechanism cooperates planetary roller mechanism, motor-driven jack can be made to reach
It is stable, efficient.
This product mechanical driving part uses machine driving, and secondary gear-worm reducer slows down, to obtain biggish subtract
Speed ratio.Wherein to obtain constant transmission ratio, second-stage worm gear worm-drive can be by lateral torque axis for primary cylinder gear transmission
At longitudinal torque, torque is finally transported to planetary roller screw again, to realize lifting purpose.Since worm gear is actively self-locking, when
The lift height that lead screw will be made to keep original when interrupting power.When being driven in the reverse direction primary speed-down gear, will can easily go
Star roller screw drops to initial position.
When using this product, vehicle is if desired lifted, is powered on, motor 5, which passes to power by shaft coupling, to be subtracted
Fast device 4, first order The gear deceleration transfers torque to second level worm and gear slowing-down structure in retarder, by horizontal direction torque
Vertical direction torque is changed into, delivers torque to planetary roller screw 3 via bearing, planetary roller screw is rotated by torque
It rises, when starting stress at the top of lead screw, very heavy 1 forced compression of top/bottom part spring, front wheel supporting axis, which floats, drives jack front-wheel 2
Ground is left, jack becomes board-like support from point type support.When pallet rises to operation height position, cut off the power, by
Self-locking when worm gear active, planetary roller screw 3 are positively retained at the height before cutting off the power.After operation, reversal connection electricity
Machine reversely rotates under motor drive, and lead screw drops to initial position, and bottom spring is upheld, and front wheel landing can be drawn at this time
Dynamic drawbar 6, withdraws working region for jack.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (4)
1. a kind of motor-driven jack, it is characterised in that: including planetary roller screw, retarder and motor, the retarder
Input shaft is connect with the shaft of the motor, and the output shaft of the retarder is connect with the planetary roller screw, described to subtract
Fast device is fixed on pedestal, and front wheels and rear wheels are respectively set in the front-end and back-end of the pedestal.
2. motor-driven jack according to claim 1, it is characterised in that: the upper front end of the pedestal is provided with spring.
3. motor-driven jack according to claim 1, it is characterised in that: the upper rear end of the pedestal, which is fixedly installed, drags
Dynamic pull rod.
4. motor-driven jack according to claim 1, it is characterised in that: the retarder is by pinion gear, gear wheel, worm screw
It is formed with turbine, the pinion gear is connect with the shaft of the motor, the pinion gear and the ratcheting connection of the gear wheel, institute
It states gear wheel to be fixedly and coaxially connected with the worm screw, the worm screw and the ratcheting connection of the turbine, the middle part of the turbine and institute
State planetary roller screw connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920001835.7U CN209685221U (en) | 2019-01-02 | 2019-01-02 | A kind of motor-driven jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920001835.7U CN209685221U (en) | 2019-01-02 | 2019-01-02 | A kind of motor-driven jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209685221U true CN209685221U (en) | 2019-11-26 |
Family
ID=68598042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920001835.7U Expired - Fee Related CN209685221U (en) | 2019-01-02 | 2019-01-02 | A kind of motor-driven jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209685221U (en) |
-
2019
- 2019-01-02 CN CN201920001835.7U patent/CN209685221U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191126 Termination date: 20220102 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |