CN104692229B - A kind of telescoping mechanism of pinion and-rack container spreader - Google Patents
A kind of telescoping mechanism of pinion and-rack container spreader Download PDFInfo
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- CN104692229B CN104692229B CN201510111766.1A CN201510111766A CN104692229B CN 104692229 B CN104692229 B CN 104692229B CN 201510111766 A CN201510111766 A CN 201510111766A CN 104692229 B CN104692229 B CN 104692229B
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- rack
- gear
- racks
- rear end
- main beam
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 abstract description 8
- 230000007547 defect Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The present invention relates to a kind of telescoping mechanism of pinion and-rack container spreader, including girder, front intermediate beam, rear intermediate beam, front beam and back end beam；Front intermediate beam be arranged on the front end of girder, the rear end of front intermediate beam and girder grafting and form expansion fit and the front end of girder between, front beam is arranged on the front end of front intermediate beam and forms expansion fit with front intermediate beam；Intermediate beam is arranged on the rear end of girder, the front end of rear intermediate beam and girder grafting and forms expansion fit and the rear end of girder between afterwards；Described back end beam is arranged on the rear end of rear intermediate beam and forms expansion fit with rear intermediate beam；Motor and motor reducer are provided with girder, between described motor reducer and end carriage, are provided with gear, rack gear.This gear, rack gear are reasonable in design, easy to maintenance.Overcome the oil leak of hydraulic telescopic type container spreader, the shortcomings of fault rate is high, maintenance is complicated difficult.
Description
Technical Field
The invention relates to a telescopic mechanism of a rack and pinion type container spreader.
Background
The hydraulic telescopic container spreader adopts an oil cylinder, an oil pump and a valve station to work. Because the container spreader is often impacted and shaken under many operating conditions, the sealing part of the hydraulic system will produce some leakages, make the goods in the container polluted, especially open container, the pollution problem is especially serious, and the leakage of the hydraulic system is difficult to avoid, and the oil pipeline reaches eight reaches, the complicacy is complicated all the way around, bring very big difficulty for maintaining.
In order to avoid the confusion, many enterprises turn to adopt the mechanical chain telescopic container spreader, but the spreader also has many shortcomings, because the machinery drives the sprocket chain to carry out the concertina movement, the wearing and tearing volume is relatively great, and some problems that the mechanism fault rate is also higher appear thereupon, simultaneously, because wearing and tearing also produce the influence to positioning accuracy, also are more difficult in the aspect of the structure maintenance.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: overcomes the defects of the prior art and provides a telescopic mechanism of a rack and pinion type container spreader.
The technical scheme adopted by the invention for solving the technical problems is as follows: a telescopic mechanism of a rack and pinion type container spreader comprises a main beam, a front middle beam, a rear middle beam, a front end beam and a rear end beam;
the front middle beam is arranged at the front end of the main beam, the rear end of the front middle beam is spliced with the main beam and forms telescopic fit with the front end of the main beam, and the front end beam is arranged at the front end of the front middle beam and forms telescopic fit with the front middle beam;
the rear middle beam is arranged at the rear end of the main beam, and the front end of the rear middle beam is spliced with the main beam and forms telescopic fit with the rear end of the main beam; the rear end beam is arranged at the rear end of the rear middle beam and forms telescopic fit with the rear middle beam;
the main beam is provided with a motor and a motor reducer, and a gear and rack transmission mechanism is arranged between the motor reducer and the end beam.
Further, the gear and rack transmission mechanism is as follows:
the motor reducer is a double-shaft reducer, two output rotating shafts of the motor reducer are respectively provided with gears, and the two gears are positioned on two sides of the main beam;
two front racks are arranged between the front end beam and the two gears, the two front racks are symmetrically distributed on two sides of the main beam, the front ends of the two front racks are connected with the front end beam, and the rear ends of the two front racks are respectively matched with tooth openings formed at the lower ends or the upper ends of the two gears;
two rear racks are arranged between the rear end beam and the gear, the two rear racks are symmetrically distributed on two sides of the main beam, the rear ends of the two rear racks are connected with the rear end beam, and the front ends of the two rear racks are respectively matched with the upper ends or the lower ends of the two gears to form tooth openings.
Further, the gear and rack transmission mechanism is as follows:
the motor reducer is a single-shaft speed reduction motor, and a gear is arranged at the output end of a rotating shaft of the motor reducer;
a front rack is arranged between the front end beam and the gear, the front end of the front rack is connected with the front end beam, and the rear end of the front rack is matched with the lower end or the upper end of the gear to form a tooth opening;
and a rear rack is arranged between the rear end beam and the gear, the rear end of the rear rack is connected with the rear end beam, and the front end of the rear rack is matched with the upper end or the lower end of the gear to form a tooth opening.
Furthermore, the front rack is positioned in the front middle beam, and the rear rack is positioned in the rear middle beam.
The invention has the beneficial effects that: the gear and rack transmission mechanism has reasonable design and convenient maintenance. The defects of oil leakage, high failure rate, complex maintenance and the like of the hydraulic telescopic container spreader are overcome, and the defects of large mechanism abrasion, short service life, high failure rate, complex maintenance and low positioning precision of the mechanical chain wheel chain telescopic container spreader are also overcome.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a front view of the telescoping mechanism of the present invention;
FIG. 2 is a top view of FIG. 1;
the motor speed reducer comprises a main beam 1, a main beam 2, a front middle beam 3, a rear middle beam 4, a front end beam 5, a rear end beam 6, a front rack 7, a rear rack 8, a motor speed reducer 9 and a gear.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. These drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1 and 2, the telescoping mechanism of the rack and pinion type container spreader comprises a main beam 1, a front middle beam 2, a rear middle beam 3, a front end beam 4 and a rear end beam 5.
The front middle beam 2 is arranged at the front end of the main beam 1, the rear end of the front middle beam 2 is spliced with the main beam 1 and forms telescopic fit with the front end of the main beam 1, and the front end beam 4 is arranged at the front end of the front middle beam 2 and forms telescopic fit with the front middle beam 2; the rear middle beam 3 is arranged at the rear end of the main beam 1, and the front end of the rear middle beam 3 is spliced with the main beam 1 and forms telescopic fit with the rear end of the main beam 1; the rear end beam 5 is arranged at the rear end of the rear middle beam 3 and forms telescopic fit with the rear middle beam 3; the main beam 1 is provided with a motor and a motor reducer 8, and a gear and rack transmission mechanism is arranged between the motor reducer 8 and the end beam.
There are two kinds of structures for the gear and rack transmission mechanism:
the first structure, gear, rack drive mechanism do: the motor reducer 8 is a double-shaft reducer, two output rotating shafts of the motor reducer 8 are respectively provided with a gear 9, and the two gears 9 are positioned on two sides of the main beam 1; two front racks 6 are arranged between the front end beam 4 and the two gears 9, the two front racks 6 are symmetrically distributed on two sides of the main beam 1, the front ends of the two front racks 6 are connected with the front end beam 4, and the rear ends of the two front racks 6 are respectively matched with tooth mouths formed at the lower ends or the upper ends of the two gears 9; two rear racks 7 are arranged between the rear end beam 5 and the gear 9, the two rear racks 7 are symmetrically distributed on two sides of the main beam 1, the rear ends of the two rear racks 7 are connected with the rear end beam 5, and the front ends of the two rear racks 7 are respectively matched with the upper ends or the lower ends of the two gears 9 to form tooth openings.
The second structure, gear, rack drive do: the motor reducer 8 is a single-shaft speed reducing motor, and a gear 9 is arranged at the output end of a rotating shaft of the motor reducer 8; a front rack 6 is arranged between the front end beam 4 and the gear 9, the front end of the front rack 6 is connected with the front end beam 4, and the rear end of the front rack 6 is matched with the lower end or the upper end of the gear 9 to form a tooth mouth; a rear rack 7 is arranged between the rear end beam 5 and the gear 9, the rear end of the rear rack 7 is connected with the rear end beam 5, and the front end of the rear rack 7 is matched with the upper end or the lower end of the gear 9 to form a tooth mouth.
When a single-shaft speed reducing motor is adopted, only one gear 9 outputs power, and the front end beam 4 and the rear end beam 5 are driven to do telescopic motion through the rotation of the gear 9. Compared with the movement of a single rack, the movement of the double rack is more stable and reliable.
The upper and lower positions of the front rack 6 and the rear rack 7 are opposite to each other, so that the front end beam 4 and the rear end beam 5 can be simultaneously extended or retracted by rotating the gear 9 in one direction.
The front rack 6 is located in the front center sill 2, and the rear rack 7 is located in the rear center sill 3.
The gear and rack transmission mechanism is reasonable in design and convenient to maintain. The defects of oil leakage, high failure rate, complex maintenance and the like of the hydraulic telescopic container spreader are overcome, and the defects of large mechanism abrasion, short service life, high failure rate, complex maintenance and low positioning precision of the mechanical chain wheel chain telescopic container spreader are also overcome.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (2)
1. A telescopic mechanism of a rack and pinion type container spreader is characterized by comprising a main beam (1), a front middle beam (2), a rear middle beam (3), a front end beam (4) and a rear end beam (5);
the front middle beam (2) is arranged at the front end of the main beam (1), the rear end of the front middle beam (2) is spliced with the main beam (1) and forms telescopic fit with the front end of the main beam (1), and the front end beam (4) is arranged at the front end of the front middle beam (2) and forms telescopic fit with the front middle beam (2);
the rear middle beam (3) is arranged at the rear end of the main beam (1), and the front end of the rear middle beam (3) is spliced with the main beam (1) and forms telescopic fit with the rear end of the main beam (1); the rear end beam (5) is arranged at the rear end of the rear middle beam (3) and forms telescopic fit with the rear middle beam (3);
a motor and a motor reducer (8) are arranged on the main beam (1), and a gear and rack transmission mechanism is arranged between the motor reducer (8) and the end beam;
the gear and rack transmission mechanism is as follows: the motor reducer (8) is a double-shaft reducer, two output rotating shafts of the motor reducer (8) are respectively provided with a gear (9), and the two gears (9) are positioned on two sides of the main beam (1); two front racks (6) are arranged between the front end beam (4) and the two gears (9), the two front racks (6) are symmetrically distributed on two sides of the main beam (1), the front ends of the two front racks (6) are connected with the front end beam (4), and the rear ends of the two front racks (6) are respectively matched with the lower ends or the upper ends of the two gears (9) to form tooth openings; two rear racks (7) are arranged between the rear end beam (5) and the gears (9), the two rear racks (7) are symmetrically distributed on two sides of the main beam (1), the rear ends of the two rear racks (7) are connected with the rear end beam (5), and the front ends of the two rear racks (7) are respectively matched with the upper ends or the lower ends of the two gears (9) to form tooth openings;
or,
the gear and rack transmission mechanism is as follows: the motor reducer (8) is a single-shaft speed reduction motor, and a gear (9) is arranged at the output end of a rotating shaft of the motor reducer (8); a front rack (6) is arranged between the front end beam (4) and the gear (9), the front end of the front rack (6) is connected with the front end beam (4), and the rear end of the front rack (6) is matched with the lower end or the upper end of the gear (9) to form a tooth opening; a rear rack (7) is arranged between the rear end beam (5) and the gear (9), the rear end of the rear rack (7) is connected with the rear end beam (5), and the front end of the rear rack (7) is matched with the upper end or the lower end of the gear (9) to form a tooth opening.
2. A telescopic mechanism for a rack and pinion container spreader according to claim 1, wherein the front rack (6) is located in the front center sill (2) and the rear rack (7) is located in the rear center sill (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510111766.1A CN104692229B (en) | 2015-03-13 | 2015-03-13 | A kind of telescoping mechanism of pinion and-rack container spreader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510111766.1A CN104692229B (en) | 2015-03-13 | 2015-03-13 | A kind of telescoping mechanism of pinion and-rack container spreader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104692229A CN104692229A (en) | 2015-06-10 |
| CN104692229B true CN104692229B (en) | 2017-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510111766.1A Active CN104692229B (en) | 2015-03-13 | 2015-03-13 | A kind of telescoping mechanism of pinion and-rack container spreader |
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| Country | Link |
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| CN (1) | CN104692229B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641158B (en) * | 2016-11-18 | 2019-04-16 | 宿州学院 | A kind of linear linkage telescopic device |
| CN107500115B (en) * | 2017-10-09 | 2021-01-15 | 张家港致盈电子技术有限公司 | Double-tube lifting appliance |
| US10485383B2 (en) | 2017-12-07 | 2019-11-26 | Helen Of Troy Limited | Tension-mounted pole caddy |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2659637B1 (en) * | 1990-03-14 | 1992-07-24 | Cosne Ind Sg | LIFTING DEVICE FOR CONTAINERS. |
| AU2001258379A1 (en) * | 2000-04-30 | 2001-11-12 | Stephan Hase | Cantilever lifting device for locking and unlocking containers, especially of a plurality of containers stacked one on top of the other, and corresponding method |
| ES2272549T3 (en) * | 2001-10-29 | 2007-05-01 | Kci Konecranes Plc | APPARATUS FOR A BLOCKING UNIT OF AN EXTENSOR FOR CONTAINERS. |
| CN101927947B (en) * | 2009-06-23 | 2012-08-29 | 上海振华重工(集团)股份有限公司 | Full-electric movable double-box hanger |
| CN201545611U (en) * | 2009-09-29 | 2010-08-11 | 上海锡华机械工程有限公司 | Telescopic lifting appliance |
| CN203938364U (en) * | 2014-06-20 | 2014-11-12 | 安徽合力股份有限公司 | For the suspender of container in hoisting status |
| CN204490306U (en) * | 2015-03-13 | 2015-07-22 | 张家港市盛达冶金吊具制造有限公司 | A kind of telescoping mechanism of pinion and-rack container spreader |
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- 2015-03-13 CN CN201510111766.1A patent/CN104692229B/en active Active
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| CN104692229A (en) | 2015-06-10 |
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