CN203416681U - Greenhouse shutter machine with ball slideway type self-locking device - Google Patents
Greenhouse shutter machine with ball slideway type self-locking device Download PDFInfo
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- CN203416681U CN203416681U CN201320465200.5U CN201320465200U CN203416681U CN 203416681 U CN203416681 U CN 203416681U CN 201320465200 U CN201320465200 U CN 201320465200U CN 203416681 U CN203416681 U CN 203416681U
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- Prior art keywords
- locking device
- power shaft
- ball
- self
- braking
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Abstract
A greenhouse shutter machine with a ball slideway type self-locking device solves the problems that a greenhouse shutter machine with a ball slideway type self-locking device in the prior art is complex in structure, high in production and maintenance cost, poor in braking effect, prone to accidents and the like. The self-locking device comprises a braking ratchet wheel assembled on an input shaft, and braking pawls matched with the braking ratchet wheel. The self-locking device further comprises a braking disk, wherein the braking ratchet wheel and the braking disk are arranged in a coaxial mode. The braking ratchet wheel is located between the braking disk and an input shaft belt wheel, and the two sides of the braking ratchet wheel are respectively provided with a friction plate. The self-locking device is characterized in that a ball locating groove is formed in a portion, matched with the input shaft belt wheel, of the input shaft, balls partially embedded in the ball locating groove are formed in the ball locating groove, and a spiral slideway matched with the balls is arranged on a portion, matched with the input shaft, of the input shaft belt wheel. The greenhouse shutter machine has the advantages of being ingenious in structural design, simple in structure, low in production and maintenance cost, convenient to use, safe and reliable, and the like.
Description
Technical field
The utility model relates to a kind of greenhouse curtain rolling machine, is a kind of greenhouse curtain rolling machine with ball slideway formula self-locking device specifically.
Background technology
Traditional greenhouse curtain rolling machine mainly contains two kinds: a kind of is rear Scroll shutter (also cry that rear wall is fixed, rear pull type or stay-supported greenhouse curtain rolling machine), and another kind is the self-propelled shutter of canopy face.Wherein, rear Scroll shutter occurring the earliest on the market, and it is comprised of main frame (be comprised of gearbox and electromotor, lower with), roll bar and column (or support) three parts.The work basic principle of this shutter is to rotate roll bar by main frame, and roll bar is wound around stay cord, and stay cord pulls straw mat or thermal insulation quilt.When let-down straw mat or thermal insulation quilt, convenient by himself weight along the gradient landing of canopy face and under.But, when it exists manual operation out of control, be difficult to effective brake and cause the problem of security incident.
As the utility model patent of notification number CN 201084951 discloses a kind of " sky is put cruise control formula greenhouse curtain rolling machine ", the problems referred to above have well been solved, it mainly comprises cabinet, assemble decelerator and self-locking device in it, hand brake device, sky is put speed-controlling device and drive unit, its technical essential is: described sky is put speed-controlling device and adopted sky to put automatic speed control device, the brake arm that sky is put automatic speed control device is directly fixed on the output of the high speed shaft of decelerator, brake hub is fixed on the axle bed of reducer shell of this high speed shaft output, the control speed shoe plate together rotating along with brake arm, breaker slot is assembled in brake hub.But there is following defect in it: owing to adopting helicitic texture that power shaft belt pulley and power shaft are fixed, after straw screen or mat or thermal insulation quilt are rolled onto on booth, belt pulley needs larger torsion to rotate when transferring, threaded belt pulley, the service life of screw thread is short, frictional force is large, needs torsion large when transferring straw screen or mat or thermal insulation quilt.And be to improve the driving machine that torsion certainly will need to be selected high torsion, certainly will increase production cost.Therefore the self-locking device that, need to use prior art (self-locking device of helicitic texture) greenhouse curtain rolling machine improves.
Utility model content
The purpose of this utility model is to provide a kind of greenhouse curtain rolling machine with ball slideway formula self-locking device, has solved in prior art self-locking device complex structure for greenhouse curtain rolling machine, production maintenance cost is high, braking effect is poor, the easy problem such as accidents caused.Its structural design is ingenious, has the advantages such as simple in structure, production maintenance cost is low, esy to use, safe and reliable.
The technical scheme that the utility model adopts is: should comprise the brake ratchet being assembled on power shaft and the ratchet matching with brake ratchet with the greenhouse curtain rolling machine of ball slideway formula self-locking device, self-locking device also comprises the brake disc with the coaxial setting of brake ratchet, brake ratchet is between brake disc and power shaft belt pulley, brake ratchet both sides are respectively equipped with friction plate, its technical essential is: described power shaft is being provided with ball positioning groove with the cooperation place of power shaft belt pulley, in ball positioning groove, be provided with the ball being partially submerged in ball positioning groove, power shaft belt pulley is provided with the spiral slide matching with ball in the cooperation place with power shaft.
Described ball positioning groove is along being circumferentially distributed on power shaft.
Described power shaft is provided with 2 ~ 5 ball positioning grooves.
The advantage the utlity model has and positive technique effect are: by the repacking to existing self-locking device, greenhouse curtain rolling machine is when normal roller shutter operation, power shaft belt pulley drives power shaft to rotate, power shaft belt pulley is spacing by the locking nut of end, extrusion friction sheet to the inside not, brake ratchet does not rotate with power shaft, does not play braking action.When roller shutter rises to booth top, belt pulley stops operating, and greenhouse rolling blind roller is due to Action of Gravity Field, and power shaft is produced to converse rotating force, and makes relative reversing between power shaft belt pulley and power shaft.Now, power shaft belt pulley is near brake ratchet under the effect of slideway, ball, and power shaft belt pulley compresses the friction plate of brake ratchet one side to brake ratchet, and the brake disc of opposite side pushes another friction plate simultaneously.Friction plate drives brake ratchet to rotate, and ratchet is positioned at the breaker slot of brake ratchet, stops the rotation of brake ratchet by ratchet, realizes braking.Self-locking device is simple in structure, and low cost of manufacture is safe and reliable.While dismantling wheel disc after employing spiral slide structure, required torsion, only for adopting 1/2 of screw buckle, therefore can adopt the driving machine that moment of torsion is less, has saved manufacturing cost.Driving machine power is less, has saved use cost.Spiral slide is compared not easy to wear compared with screw buckle, longer service life, has reduced maintenance cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is concrete structure schematic diagram of the present utility model;
Fig. 2 is the decomposition texture schematic diagram of the utility model self-locking device;
Fig. 3 is the main TV structure schematic diagram of the utility model self-locking device;
Fig. 4 is that Fig. 3 is along the sectional structure schematic diagram of A-A line;
Fig. 5 is that Fig. 4 is along the sectional structure schematic diagram of B-B line;
Fig. 6 is the structural representation of the utility model self-locking device while matching with ratchet.
Sequence number explanation in figure: 1 decelerator, 2 power shaft belt pulleys, 3 self-locking devices, 4 skies are put automatic speed control device, 5 motor pulleys, 6 motors, 7 cabinets, 8 power shafts, 9 balls, 10 brake discs, 11 left friction plates, 12 locking nuts, 13 right friction plates, 14 brake ratchets, 15 ball positioning grooves, 16 spiral slides, 17 ratchets.
Embodiment
According to Fig. 1 ~ 6, describe concrete structure of the present utility model in detail.Rear Scroll greenhouse curtain rolling machine comprises cabinet 7, be assembled in the decelerator 1 in cabinet 7 and manually speed-controlling device, sky are put the parts such as automatic speed control device 4, self-locking device 3 and drive unit.Wherein the structure of the specification of cabinet 7, decelerator 1, self-locking device 3 and drive unit, shape and existing rear Scroll greenhouse curtain rolling machine is basic identical.Drive unit comprises motor 6, bel-drivenn motor pulley 5 and power shaft belt pulley 2.The utility model is to the improvement that wherein self-locking device 3 carries out, and it comprises the brake ratchet 14 being assembled on power shaft, the ratchet 17 matching with brake ratchet 14, the brake disc 10 with the coaxial setting of brake ratchet 14, power shaft belt pulley 2 and for the parts such as locking nut 12 of spacing power shaft belt pulley 2.During use, also need on locking nut 12, latch be set, power shaft belt pulley 2 is spacing on power shaft 8.Brake ratchet 14 is between brake disc 10 and power shaft belt pulley 2, and brake ratchet 14 both sides are respectively equipped with friction plate (left and right friction plate 11,13).Power shaft 8 is provided with ball positioning groove 15(the present embodiment in the cooperation place with power shaft belt pulley 2 be three), ball positioning groove 15, along being circumferentially distributed on power shaft 8, is provided with the ball 9 being partially submerged in ball positioning groove 15 in ball positioning groove 15.Power shaft belt pulley 2 is provided with the spiral slide 16 matching with ball 9 in the cooperation place with power shaft 8.Can process according to actual needs the ball positioning groove 15 and spiral slide 16 of suitable number.
Said structure makes the part of giving prominence to outside ball positioning groove 15 of ball 9 move along spiral slide 16, is with driven input shaft belt pulley 2 to screw or unscrew from power shaft 8 in motion process.When power shaft belt pulley 2 screws, inwardly push right friction plate 13, brake disc 10 is spacing by the boss of power shaft simultaneously.Left and right friction plate 11,13 clamps to brake ratchet 14 therebetween, and brake ratchet 14 rotates ratchets 17 and is stuck in and on breaker slot, realizes self-locking.When power shaft belt pulley 2 unscrews, by locking nut 12, prevent that it from coming off by power shaft belt pulley 2 is spacing.Meanwhile, substitute the screw-type structure of original power shaft belt pulley, when power input shaft belt pulley 2 unscrews, more easily become flexible self-locking device.
By the repacking to existing self-locking device, greenhouse curtain rolling machine is when normal roller shutter operation, and power shaft belt pulley 2 band driven input shafts 8 rotate.When roller shutter rises to booth top, power shaft belt pulley 2 stops operating, and greenhouse rolling blind roller is due to Action of Gravity Field, and power shaft 8 is produced to converse rotating forces, and makes relative reversing between power shaft belt pulley 2 and power shaft 8.Now, power shaft belt pulley 2 is near brake ratchet 14 under the effect of spiral slide 16, ball 9, and power shaft belt pulley 2 compresses the right friction plate 13 of brake ratchet 14 1 sides to brake ratchet 14, simultaneously the left friction plate 11 of brake disc 10 extruding of opposite side.Left and right friction plate 11,13 drives brake ratchet 14 to rotate, and ratchet 17 is positioned at the breaker slot of brake ratchet 14, stops the rotation of brake ratchet 14 by ratchet 17, realizes braking.Self-locking device is simple in structure, and low cost of manufacture is safe and reliable.While dismantling wheel disc after employing spiral slide structure, required torsion, only for adopting 1/2 of screw buckle, therefore can adopt the driving machine that moment of torsion is less, has saved manufacturing cost.Driving machine power is less, has saved use cost.Spiral slide is compared not easy to wear compared with screw buckle, longer service life, has reduced maintenance cost.
Claims (3)
1. the greenhouse curtain rolling machine with ball slideway formula self-locking device, comprise the brake ratchet being assembled on power shaft and the ratchet matching with brake ratchet, self-locking device also comprises the brake disc with the coaxial setting of brake ratchet, brake ratchet is between brake disc and power shaft belt pulley, brake ratchet both sides are respectively equipped with friction plate, it is characterized in that: described power shaft is being provided with ball positioning groove with the cooperation place of power shaft belt pulley, in ball positioning groove, be provided with the ball being partially submerged in ball positioning groove, power shaft belt pulley is provided with the spiral slide matching with ball in the cooperation place with power shaft.
2. the greenhouse curtain rolling machine with ball slideway formula self-locking device according to claim 1, is characterized in that: described ball positioning groove is along being circumferentially distributed on power shaft.
3. the greenhouse curtain rolling machine with ball slideway formula self-locking device according to claim 1 and 2, is characterized in that: described power shaft is provided with 2 ~ 5 ball positioning grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320465200.5U CN203416681U (en) | 2013-08-01 | 2013-08-01 | Greenhouse shutter machine with ball slideway type self-locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320465200.5U CN203416681U (en) | 2013-08-01 | 2013-08-01 | Greenhouse shutter machine with ball slideway type self-locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203416681U true CN203416681U (en) | 2014-02-05 |
Family
ID=50015796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320465200.5U Expired - Lifetime CN203416681U (en) | 2013-08-01 | 2013-08-01 | Greenhouse shutter machine with ball slideway type self-locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203416681U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103348885A (en) * | 2013-08-01 | 2013-10-16 | 周德兴 | Greenhouse curtain rolling machine with ball slide rail type self-lock device |
-
2013
- 2013-08-01 CN CN201320465200.5U patent/CN203416681U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103348885A (en) * | 2013-08-01 | 2013-10-16 | 周德兴 | Greenhouse curtain rolling machine with ball slide rail type self-lock device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140205 |
|
| CX01 | Expiry of patent term |