CN208650008U - A kind of screw open-close machine - Google Patents
A kind of screw open-close machine Download PDFInfo
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- CN208650008U CN208650008U CN201821246843.XU CN201821246843U CN208650008U CN 208650008 U CN208650008 U CN 208650008U CN 201821246843 U CN201821246843 U CN 201821246843U CN 208650008 U CN208650008 U CN 208650008U
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Abstract
The utility model discloses a kind of screw open-close machines, belong to lifting or bearing equipment technical field.The screw open-close machine of the utility model, including screw rod, motor, worm gear, bearing assembly, worm screw, support, flashboard and double nut anti-slip thread mechanism, in which: the worm gear is fixed on the support by bearing assembly；The motor, worm and worm wheel are successively sequentially connected, and double nut anti-slip thread mechanism is embedded at the worm gear center；After the screw rod is threadedly coupled with double nut anti-slip thread mechanism, bottom end is fixedly connected with flashboard.The utility model, which reaches solution worm-type open-close machine screw body by double nut anti-slip thread mechanism, there is technical issues that load-bearing nut occurs.
Description
Technical field
The utility model relates to lifting or bearing equipment technical fields, specifically, being related to a kind of screw open-close machine.
Background technique
Headstock gear is widely used in all kinds of large-scale plumbing, hydraulic and hydroelectric engineering, by the lifting for controlling all kinds of gates
To achieve the purpose that open and close gate.It is divided by type: hydraulic headstock gear, winch hoist, screw open-close machine etc..
Wherein, screw open-close machine due to its convenient for operation and use cost it is cheap and be widely used.
Screw rod in screw open-close machine is the basic transmission mechanism of conventional machinery equipment, and load-bearing nut moves on screw rod
When, when due to long-term, overload operation or defective in quality product, often there is stripped thread problem in load-bearing nut, causes entire spiral shell
Bar headstock gear shut down and cannot continuous load-bearing even result in or cause safety accident sometimes.
Through retrieving, Chinese patent publication No. CN 105908681 B, publication date 2018.6.22, a kind of denomination of invention: screw rod
Formula headstock gear, including base and gate are provided with screw rod on base, the nut connecting with screw rod are provided on gate, described
It is connected with worm wheel screw-type reduction gearbox at the top of screw rod, is provided on the reduction gearbox and shakes thick stick, be connected with direct current on reduction gearbox
Machine or alternating current generator with inverter, the motor further includes solar panel by cable connection control cabinet, described
It is equipped with the battery connecting with solar panel in control cabinet, PLC, control loop unit are additionally provided in control cabinet and remotely leads to
Module is interrogated, is provided with the pressure type water gauge being connected to motor on gate.The source of the invention energy is with solar panel
The problem of acquiring and be stored in the electric energy in battery, not needing power grid and electric energy is provided, but not can solve screw rod stripped thread.
Utility model content
1. utility model technical problems to be solved
There is stripped thread to overcome the problems, such as the vehicle-mounted worm-type open-close machine screw body of the prior art there are load-bearing nut and cannot
The problem of continuous load-bearing, the utility model provide a kind of screw open-close machine.The utility model passes through the setting of secondary nut, when main spiral shell
When there is stripped thread failure between female and screw rod, after main nut forced-slip, one can be overlapped with secondary nut, secondary nut load-bearing is simultaneously
It rotates simultaneously, to achieve the purpose that continuous load-bearing.
2. technical solution
To solve the above problems, the utility model adopts the following technical solution:
A kind of screw open-close machine, including screw rod, motor, worm gear, bearing assembly, worm screw, support, flashboard and double nut are anti-skidding
Silk mechanism, in which: the worm gear is fixed on the support by bearing assembly；The motor, worm and worm wheel are successively sequentially connected,
Double nut anti-slip thread mechanism is embedded at the worm gear center；After the screw rod is threadedly coupled with double nut anti-slip thread mechanism, bottom end
It is fixedly connected with flashboard, reaching solution worm-type open-close machine screw body by double nut anti-slip thread mechanism, there are load-bearing nuts to go out
The technical issues of existing stripped thread.
Further embodiment, double nut anti-slip thread mechanism include screw rod and the main nut being socketed on screw rod and secondary nut；
The main nut is fixedly connected at the center of worm gear, is load-bearing nut, preset clearance between main nut and secondary nut；When main spiral shell
Between female and screw rod when stripped thread failure, one is overlapped after the main nut and secondary nut stress, which can be flashboard and screw rod
Own wt, main nut rotates simultaneously with secondary nut after overlap joint, to continue to drive screw rod landing.
Further embodiment further includes flat key, and keyway, the worm gear center are provided at the top outer rim of the main nut
It is also equipped with the groove of fit keyway, forms the square groove for accommodating flat key after the keyway and groove combination, described in flat key insertion
In square groove, achieve the purpose that worm gear drives main nut rotation；Secondary nut is located above main nut, the top setting pair of main nut
The card convex of title can be one or more, the card slot and chuck that the pair nut end setting is correspondingly arranged with card convex, the two engagement
It is rotated while realizing main nut and secondary nut afterwards.
Further embodiment is provided with sliding equipment in the end of chuck and/or card slot, can be steel ball, lubricating graphite
Gasket etc., it is stuck when to avoid main nut and secondary nut role transfer.
Further scheme, sliding equipment include the steel ball in the circular trough and circular trough of the end of chuck, the steel
The diameter of pearl is slightly larger than the depth of circular trough, and steel ball, which can roll, drives main nut and secondary nut mutually to slide, prevent main nut and
Secondary nut occurs stuck after directly contacting.
Further scheme, card convex, card slot and chuck are fan-shaped, be it is two or more, corresponding circular trough and
Steel ball be also it is two or more, quantity is more, and the engagement capability of the two is stronger, is less susceptible to stuck.
Further scheme, bearing assembly include 2 bearings, the two sides up and down of worm gear are respectively arranged at, to guarantee snail
Stable state when wheel rotation.
Further scheme, the outer shroud of worm gear are connected to worm gear cover, and the bottom of worm gear cover is fixed on the support, and play pair
The dust-proof and protective action of worm gear.
Further scheme, secondary nut be it is two or more, top is identical with the apex structure of the main nut, reason
By can above be continued for load-bearing, it is only necessary to successively realize secondary-secondary, major-minor pair pair-pair ... of master-pair, major-minor-pair, major-minor etc.
The transfer of role.
A kind of operating method of screw open-close machine, step are as follows:
Step 1: closing lock: electric motor starting, motor transmission shaft drive worm screw to rotate forward, and worm screw drives worm gear to revolve in the horizontal direction
Turn, worm gear drives main nut to rotate again by flat key, main nut load-bearing, and secondary nut idle running, main nut drives screw rod spirally to hang down
It directly moves downward, until flashboard is closed sluice gate；
Step 2: opening a sluice gate: electric motor starting, motor transmission shaft drive worm screw reversion, and worm screw drives worm gear to revolve in the horizontal direction
Turn, worm gear drives main nut to rotate again, main nut load-bearing, and secondary nut idle running, main nut drives screw rod spirally to transport vertically upward
It is dynamic, until flashboard opens sluice gate；
Step 3: secondary nut load-bearing: when stripped thread failure occurs in main nut, under flashboard self gravitation effect, flashboard drives whole
A screw rod and secondary nut move down, card convex and card slot overlap joint, and with the lasting rotation of secondary nut, main nut and secondary nut agree with one
It rises, secondary nut starts load-bearing, and main nut is driven to rotate together, further plays drive screw rod and moves up and down, so that flashboard be driven to be opened and closed
Sluice gate.
3. beneficial effect
Compared with prior art, the utility model has the following obvious advantages:
(1) screw open-close machine of the utility model, is skillfully constructed, the main nut and anti-fall nut of double nut anti-slip thread mechanism
Between without connection, after main nut stripped thread, under flashboard and screw rod self gravitation effect, secondary nut falls with screw rod, main nut
It realizes with secondary nut overlap joint and rotates simultaneously, the transfer of load-bearing can be realized when main nut stripped thread failure with secondary nut again, without shutdown
Maintenance, and then achieve the purpose that lasting load-bearing；
(2) screw open-close machine of the utility model, main nut and secondary nut preset clearance, both avoid load-bearing simultaneously and can
It can damage simultaneously；
(3) screw open-close machine of the utility model, card convex, card slot and chuck play the purpose of overlap joint engagement, and then realize
It is rotated while main nut and secondary nut；
(4) screw open-close machine of the utility model, sliding equipment such as steel ball, lubricating graphite gasket can be achieved to avoid stuck
Purpose；
(5) screw open-close machine of the utility model, compared to the lubricating graphite gasket for walking lubricating action merely, circular trough and
Steel ball in circular trough, moreover it is possible to play the role of buffering load-bearing, and then realize smooth transition when role's transfer；Main nut damage
Afterwards, secondary nut is fallen on main nut, and by the support of steel ball, main nut will appear the idle running of certain angle, then with secondary nut
It is operated after agreeing with secondary nut；
(6) screw open-close machine of the utility model, two or more card convexs, card slot, chuck circular trough and steel ball are more,
The engagement capability of the two is stronger, is less susceptible to stuck；
(7) screw open-close machine of the utility model, secondary nut can be continuously arranged, and can theoretically be continued for load-bearing, only
It needs successively to realize that master-pair, major-minor-pair, major-minor are secondary-secondary, major-minor is secondary-secondary ... and waits the transfer of roles；
(8) operating method of the utility model realizes the process of main nut and secondary nut role transfer, easy to operate,
Wide application can continue production free of discontinuities, production efficiency and high degree of automation.
Detailed description of the invention
Fig. 1 is the screw open-close machine structural schematic diagram of the utility model；
Fig. 2 is structural schematic diagram after the part B amplification in Fig. 1；
Fig. 3 is the screw open-close machine top view of the utility model；
Fig. 4 is top view at the A-A in Fig. 1；
Fig. 5 is the main nut main view in the utility model；
Fig. 6 is the main nut top view in the utility model；
Fig. 7 is the secondary nut main view in the utility model；
Fig. 8 is the secondary nut bottom view in the utility model；
Fig. 9 is the secondary nut sectional view in the utility model；
Figure 10 is the secondary nut perspective view in the utility model；
Figure 11 is the secondary nut main view of embodiment 6 to 7 in the utility model.
In figure: 1. screw rods；2. main nut；3. steel ball；4. secondary nut；5. worm gear；6. flat key；7. bearing assembly；8. worm screw；
9. motor；10. support；11. flashboard；21. keyway；22. card convex；41. card slot；42. chuck；51. worm gear cover.
Specific embodiment
For the content for further appreciating that the utility model, this utility model is described in detail in conjunction with attached drawing.
Embodiment 1
The screw open-close machine of the present embodiment, as shown in Figure 1, 2, 3, including screw rod 1, motor 9, worm gear 5, bearing assembly 7, snail
Bar 8, support 10, flashboard 11 and double nut anti-slip thread mechanism, in which: the worm gear 5 is fixed on support 10 by bearing assembly 7
On, bearing assembly 7 includes bearing and bearing block, and bearing block is fixed on support 10；The motor 9, worm screw 8 and worm gear 5 are successively
It is sequentially connected, double nut anti-slip thread mechanism is embedded at 5 center of worm gear；The screw rod 1 and double nut anti-slip thread mechanism screw thread
After connection, bottom end is fixedly connected with flashboard 11, and double nut anti-slip thread mechanism includes screw rod 1 and the main nut 2 that is socketed on screw rod 1
With secondary nut 4；The main nut 2 is fixedly connected at the center of worm gear 5, is load-bearing nut, between main nut 2 and secondary nut 4
Preset clearance；When stripped thread failure between main nut 2 and screw rod 1, one is overlapped after the main nut 2 and 4 stress of secondary nut, it should
Power can be the own wt of flashboard 11 and screw rod 1, and main nut 2 rotates simultaneously with secondary nut 4 after overlap joint, to continue to drive silk
1 landing of bar.
Embodiment 2
The screw open-close machine of the present embodiment, basic structure are theed improvement is that with embodiment 1: as shown in Fig. 1,4, also being wrapped
Flat key 6 is included, as shown in Figure 5,6, keyway 21 is provided at the top outer rim of the main nut 2,5 center of worm gear is also equipped with
The square groove for accommodating flat key 6 is formed after the groove of fit keyway 21, the keyway 21 and groove combination, flat key 6 is embedded in the side
In shape slot, achieve the purpose that worm gear 5 drives main nut 2 to rotate；Secondary nut 4 is located at 2 top of main nut, and the top of main nut 2 is set
Symmetrical card convex 22 is set, can be one or more, is 2 in the present embodiment, such as the institute of Fig. 1,7,8,9,10 as shown in Fig. 1,5,6
Show, the card slot 41 and chuck 42 that pair 4 end of nut setting is correspondingly arranged with card convex 22 realize main nut 2 after the two engagement
It is rotated while with secondary nut 4.
When stripped thread failure between main nut 2 and screw rod 1, under the own wt of flashboard 11 and screw rod 1, screw rod 1 is driven
Secondary nut 4 moves down, and card convex 22 and chuck 42 overlap after slightly contacting, can be realized main nut 2 drive secondary nut 4 with
Screw rod 1 is mobile, and secondary nut 4 and main nut 2 engage, and main nut 2 dallies after certain angle, and card convex 22 and chuck 42 completely attach to one
Body realizes that secondary nut 4 drives main nut 2, and finally screw rod 1 is driven to go up and down, and then realize load-bearing angle under the action of worm gear 5
The transfer of color, what is be achieved that does not stop and the load-bearing that persistently exerts a force yet.
Embodiment 3
The screw open-close machine of the present embodiment, basic structure are theed improvement is that with embodiment 3: the end of chuck 42 and/or
It is provided with sliding equipment in card slot 41, can be steel ball, lubricating graphite gasket etc., is lubricating graphite gasket in the present embodiment,
Setting in the end of chuck 42 and card slot 41, card convex 22 is stuck in card slot when can shift to avoid main nut 2 and secondary 4 role of nut
In 41；The end of card convex 22 preset clearance 2mm between card slot 41.
The operating method of the present embodiment screw open-close machine, step are as follows:
Step 1: closing lock: motor 9 starts, and motor transmission shaft drives worm screw 8 to rotate forward, and worm screw 8 drives worm gear 5 in level side
To rotation, worm gear 5 drives main nut 2 to rotate again by flat key 6,2 load-bearing of main nut, and secondary nut 4 dallies, and main nut 2 drives silk
The spiral vertical downward movement of bar 1, until flashboard 11 is closed sluice gate；
Step 2: opening a sluice gate: motor 9 starts, and motor transmission shaft drives worm screw 8 to invert, and worm screw 8 drives worm gear 5 in level side
To rotation, worm gear 5 drives main nut 2 to rotate again, 2 load-bearing of main nut, and secondary nut 4 dallies, and main nut 2 drives screw rod 1 spiral
Upward vertical movement, until flashboard 11 opens sluice gate；
Step 3: secondary nut load-bearing: when there is stripped thread failure in main nut 2, under 11 self gravitation effect of flashboard, 11 band of flashboard
It moves entire screw rod 1 and secondary nut 4 moves down, card convex 22 and card slot 41 overlap, and lubricating graphite gasket works, can be to avoid main nut
2 is stuck in card slot 41 with card convex 22 when secondary 4 role of nut transfer；With the lasting rotation of secondary nut 4, main nut 2 and secondary spiral shell
Mother 4 fits together, and secondary nut 4 starts load-bearing, and main nut 2 is driven to rotate together, further plays drive screw rod 1 and moves up and down, from
And flashboard 11 is driven to be opened and closed sluice gate.
The screw open-close machine of the present embodiment, realizes the process of main nut 2 and secondary 4 role of nut transfer, and effectively avoids
Main nut 2 causes screw rod 1 to fall to close lock because of stripped thread, and lifting, easy to operate, wide application are realized in screw rod 1 sustainable work.
Embodiment 4
The screw open-close machine of the present embodiment, basic structure with embodiment 3, improve and the difference is that: the end of card convex 22
Portion preset clearance 3mm between card slot 41；The height of card convex 22 and chuck 42 is 2cm；Sliding equipment includes the end of chuck 42
Circular trough and circular trough in steel ball 3, the diameter of the steel ball 3 is slightly larger than the depth of circular trough, and 3 load-bearing capacity of steel ball is by force simultaneously
It can roll and drive main nut 2 and the mutually sliding of secondary nut 4, sliding is improved to roll, it is significantly more efficient to prevent main nut 2 direct
Occur after being contacted with secondary nut 4 stuck.
The operating method of the present embodiment screw open-close machine, step are as follows:
Step 1: closing lock: motor 9 starts, and motor transmission shaft drives worm screw 8 to rotate forward, and worm screw 8 drives worm gear 5 in level side
To rotation, worm gear 5 drives main nut 2 to rotate again by flat key 6,2 load-bearing of main nut, and secondary nut 4 dallies, and main nut 2 drives silk
The spiral vertical downward movement of bar 1, until flashboard 11 is closed sluice gate；
Step 2: opening a sluice gate: motor 9 starts, and motor transmission shaft drives worm screw 8 to invert, and worm screw 8 drives worm gear 5 in level side
To rotation, worm gear 5 drives main nut 2 to rotate again, 2 load-bearing of main nut, and secondary nut 4 dallies, and main nut 2 drives screw rod 1 spiral
Upward vertical movement, until flashboard 11 opens sluice gate；
Step 3: secondary nut load-bearing: when there is stripped thread failure in main nut 2, under 11 self gravitation effect of flashboard, 11 band of flashboard
It moves entire screw rod 1 and secondary nut 4 moves down, card convex 22 and card slot 41 overlap, and with the lasting rotation of secondary nut 4,3 load-bearing of steel ball is simultaneously
It can roll and drive main nut 2 and the mutually sliding of secondary nut 4, sliding is improved to roll by steel ball 3, significantly more efficient to prevent main nut
2 directly contacted with secondary nut 4 after occur stuck, main nut 2 and secondary nut 4 fit together, and secondary nut 4 starts load-bearing, drive
Main nut 2 rotates together, further plays drive screw rod 1 and moves up and down, so that flashboard 11 be driven to be opened and closed sluice gate.
Embodiment 5
The screw open-close machine of the present embodiment, basic structure with embodiment 4, improve and the difference is that: such as the institute of Fig. 6 and 8
Show, card convex 22, card slot 41 and chuck 42 are fan-shaped, and it is two or more, corresponding circular trough and steel ball 3 that radian, which is 60 °,
Also it is two or more, is 2 in the present embodiment.
In the step of operating method of the present embodiment screw open-close machine three: the angle that main nut 2 dallies is less than 60 °.
Embodiment 6
The screw open-close machine of the present embodiment, basic structure with embodiment 5, improve and the difference is that: bearing assembly 7 wraps
2 bearings are included, the two sides up and down of worm gear 5 are respectively arranged at, stable state when guaranteeing that worm gear 5 rotates.The end of card convex 22
The preset clearance 5mm between card slot 41；The height of card convex 22 and chuck 42 is 2cm；Secondary nut 4 is two or more, this implementation
Example is 2, and as shown in figure 11, top is identical with the apex structure of the main nut 2 to be also equipped with chuck 42,4 liang of secondary nut
The chuck 42 at end is staggered；Chuck 42 and 22 quantity of card convex are 3, and radian is 30 °.
The operating method of the present embodiment screw open-close machine, step are as follows:
Step 1: closing lock: motor 9 starts, and motor transmission shaft drives worm screw 8 to rotate forward, and worm screw 8 drives worm gear 5 in level side
To rotation, worm gear 5 drives main nut 2 to rotate again by flat key 6,2 load-bearing of main nut, and secondary nut 4 dallies, and main nut 2 drives silk
The spiral vertical downward movement of bar 1, until flashboard 11 is closed sluice gate；
Step 2: opening a sluice gate: motor 9 starts, and motor transmission shaft drives worm screw 8 to invert, and worm screw 8 drives worm gear 5 in level side
To rotation, worm gear 5 drives main nut 2 to rotate again, 2 load-bearing of main nut, and secondary nut 4 dallies, and main nut 2 drives screw rod 1 spiral
Upward vertical movement, until flashboard 11 opens sluice gate；
Step 3: secondary nut load-bearing: when there is stripped thread failure in main nut 2, under 11 self gravitation effect of flashboard, 11 band of flashboard
It moves entire screw rod 1 and secondary nut 4 moves down, card convex 22 and card slot 41 overlap, and with the lasting rotation of secondary nut 4, main nut 2 dallies
After 30 ° maximum, 3 load-bearing of steel ball simultaneously can roll drive main nut 2 and the mutual sliding of secondary nut 4, and sliding is improved to roll by steel ball 3
It is dynamic, it is significantly more efficient prevent main nut 2 from directly contact with secondary nut 4 after occur stuck, main nut 2 and pair nut 4 agree with one
It rises, secondary nut 4 starts load-bearing, and main nut 2 is driven to rotate together, further plays drive screw rod 1 and moves up and down.
Step 4: the second secondary nut load-bearing: when there is stripped thread failure in main nut 2 and first secondary nut 4,11 band of flashboard
Move entire screw rod 1 and secondary nut 4 continue to move down, main nut 2 and first secondary nut 4 dally it is 30 ° maximum after, first secondary nut
4 and second secondary nut 4 agree with, terminate idle running, second secondary nut 4 starts load-bearing, drives first secondary nut 4 and main nut
2 drive screw rod 1 to go up and down together, so that flashboard 11 be driven to be opened and closed or open sluice gate.
Embodiment 7
The screw open-close machine of the present embodiment, basic structure are theed improvement is that with embodiment 6: the outer shroud of worm gear 5 is connected to
Worm gear cover 51, the bottom of worm gear cover 51 are fixed on support 10, and the dust-proof and protective action to worm gear 5 is played.Secondary nut 4 is more
A, i.e., 3 or more, as shown in figure 11, top is identical with the apex structure of the main nut 2 to be also equipped with chuck 42, secondary spiral shell
The chuck 42 at female 4 both ends is staggered；Chuck 42 and 22 quantity of card convex are 3, and radian can be 15 °.
The screw open-close machine of the present embodiment can theoretically be continued for load-bearing as long as secondary nut 4 is multiple enough, only need
It successively to realize that master-pair, major-minor-pair, major-minor are secondary-secondary, major-minor is secondary-secondary ... and wait the transfer of roles.
Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing
Shown in be also one of the embodiments of the present invention, actual structure is not limited to this.So if this field
Those of ordinary skill enlightened by it, without departing from the spirit of the invention, not inventively design with should
The similar frame mode of technical solution and embodiment, all should belong to the protection range of the utility model.
Claims (9)
1. a kind of screw open-close machine, including screw rod (1), motor (9), worm gear (5), bearing assembly (7), worm screw (8), support (10)
With flashboard (11), which is characterized in that further include double nut anti-slip thread mechanism, in which:
The worm gear (5) is fixed on support (10) by bearing assembly (7)；
The motor (9), worm screw (8) and worm gear (5) are successively sequentially connected, and it is anti-skidding that double nut is embedded at worm gear (5) center
Silk mechanism；After the screw rod (1) is threadedly coupled with double nut anti-slip thread mechanism, bottom end is fixedly connected with flashboard (11).
2. screw open-close machine as described in claim 1, which is characterized in that double nut anti-slip thread mechanism includes screw rod (1)
With the main nut (2) being socketed on screw rod (1) and secondary nut (4)；The main nut (2) is fixedly connected on the center of worm gear (5)
Place is load-bearing nut, preset clearance between main nut (2) and secondary nut (4)；When stripped thread event between main nut (2) and screw rod (1)
When barrier, one is overlapped after the main nut (2) and secondary nut (4) stress, and rotate simultaneously.
3. screw open-close machine as claimed in claim 2, which is characterized in that further include flat key (6), the main nut (2) it is upper
It is provided at portion's outer rim keyway (21), worm gear (5) center is also equipped with the groove of fit keyway (21), the keyway (21)
With the square groove for forming receiving flat key (6) after groove combination, flat key (6) is embedded in the square groove；
The pair nut (4) is located above main nut (2), and symmetrical card convex (22), the pair spiral shell is arranged in the top of main nut (2)
The card slot (41) and chuck (42) that female (4) end setting and card convex (22) are correspondingly arranged.
4. screw open-close machine as claimed in claim 3, which is characterized in that the end of the chuck (42) and/or card slot (41)
Inside it is provided with sliding equipment.
5. a kind of screw open-close machine as claimed in claim 4, which is characterized in that the sliding equipment includes the end of chuck (42)
Steel ball (3) in the circular trough and circular trough in portion, the diameter of the steel ball (3) are slightly larger than the depth of circular trough.
6. a kind of screw open-close machine as claimed in claim 5, which is characterized in that the card convex (22), card slot (41) and chuck
(42) fan-shaped, be it is two or more, corresponding circular trough and steel ball (3) are also two or more.
7. a kind of screw open-close machine as claimed in claim 6, which is characterized in that the bearing assembly (7) includes 2 bearings,
It is respectively arranged at the two sides up and down of worm gear (5).
8. a kind of screw open-close machine as claimed in claim 6, which is characterized in that the outer shroud of the worm gear (5) is connected to worm gear
It covers (51), the bottom of worm gear cover (51) is fixed on support (10).
9. a kind of screw open-close machine as claimed in claim 7, which is characterized in that the pair nut (4) be it is two or more,
Top is identical with the apex structure of the main nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821246843.XU CN208650008U (en) | 2018-08-03 | 2018-08-03 | A kind of screw open-close machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821246843.XU CN208650008U (en) | 2018-08-03 | 2018-08-03 | A kind of screw open-close machine |
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| CN208650008U true CN208650008U (en) | 2019-03-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108677886A (en) * | 2018-08-03 | 2018-10-19 | 安徽世界村新材料有限公司 | A kind of screw open-close machine and its working method |
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2018
- 2018-08-03 CN CN201821246843.XU patent/CN208650008U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108677886A (en) * | 2018-08-03 | 2018-10-19 | 安徽世界村新材料有限公司 | A kind of screw open-close machine and its working method |
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