CN204253776U - For the lifting controllable reduction device of road vehicle limit for height - Google Patents
For the lifting controllable reduction device of road vehicle limit for height Download PDFInfo
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- CN204253776U CN204253776U CN201420570502.3U CN201420570502U CN204253776U CN 204253776 U CN204253776 U CN 204253776U CN 201420570502 U CN201420570502 U CN 201420570502U CN 204253776 U CN204253776 U CN 204253776U
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- gear
- transmission shaft
- worm
- road vehicle
- height
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Abstract
The utility model discloses a kind of lifting controllable reduction device for road vehicle limit for height, comprise body and the driving mechanism being positioned at body; Described driving mechanism comprises cable wire wheel, and a pair Worm Wheel System is secondary, bevel-gear sett transmission, the transition gear of commutation transmission, the first gear and the second gear.The moment of torsion that the utility model is inputted by external motor, as machine operation initiatively; By the accurate velocity ratio of worm and gear, gear mesh force is transferred on worm screw, again by the transmission of worm gear, the torque transfer exported to cable wire is taken turns, cable wire is made to take turns turning to along worm gear, do positive and negative running, thus ensure that cable wire wheel obtains larger moment of torsion, the lifting deceleration reaching limit for height controls.The utility model can solve the problem such as interchangeable and universal of velocity ratio, good technical performance, artificial operability and equipment accurately, achieves the designing requirement of road vehicle limit for height to the full extent.
Description
Technical field
The utility model belongs to mechanical reduction technical field, is specifically related to a kind of lifting controllable reduction device of road vehicle limit for height.
Background technique
At present, in prior art, generally adopt the structural design of tubular structure and hydraulic system for road vehicle height limiter, serve the technical requirements of vehicle limit for height to a certain extent; But along with the high standard of limit for height technical specifications, in the hommization such as intelligent, easy to operate, said structure design deficiency also highlights increasingly;
One, when height limiter adopts tubular structure to design, the top of road portal frame vertical rod need be arranged on, (1), when the power failure state of emergency occurs, tubular structure design cannot carry out the hand operation in front end, greatly affects passing unimpeded of road traffic, (2), because of portal frame vertical rod when mounted, be difficult to maintenance level and perpendicularity, when being arranged on top, easily occur deviation, and difficulty of construction is comparatively large, later maintenance inconvenience;
Two, when height limiter adopts hydraulic structure, (1), be subject to the restriction of outdoor environment, service behaviour can not reach technical requirements, (2), due to the leakage of liquid medium and compressibility impact, can not obtain velocity ratio accurately.
Model utility content
In order to solve the problem such as interchangeable and universal of velocity ratio, good technical performance, artificial operability and equipment accurately, the utility model provides a kind of lifting controllable reduction device for road vehicle limit for height.
Concrete technical solution is as follows:
Lifting controllable reduction device for road vehicle limit for height comprises body 1 and is positioned at the driving mechanism of body 1; Described driving mechanism comprises the first transmission shaft 3, second driving shaft 8, the 3rd transmission shaft 21 and the 4th transmission shaft 5; One end of described first transmission shaft 3 is provided with cable wire wheel 2, and the other end is provided with worm gear 11; The worm screw 12 coordinated with worm gear 11 is located at the below of worm gear 11, and the opposite side of described worm gear 11 is polished rod, and described polished rod is provided with transition gear 15, and worm gear 11 is perpendicular to the first transmission shaft 3; One end that the below equality of the first transmission shaft 3 is provided with the 4th transmission shaft the 5, four transmission shaft 5 is provided with input pedestal 4, and the other end is provided with the first bevel gear 6; The second bevel gear 7 engaged with the first bevel gear 6 is located at one end of second driving shaft 8, and the other end of second driving shaft 8 is provided with the first gear 9, the parallel below being positioned at worm screw 12 of described second driving shaft 8; Described transition gear 15 engages with the first gear 9, second gear 10 respectively; Described second gear 10 is located on body 1 by the 3rd transmission shaft 21, and is positioned at the side of the first gear 9; Described 3rd transmission shaft 21 is parallel to second driving shaft 8, and one end of the 3rd transmission shaft 21 extends outside body 1, and the overhanging end of the 3rd transmission shaft 21 is provided with crank 24;
The rod end of the opposite side polished rod of the worm gear 11 corresponding with transition gear 15 is provided with positioning wheel, and the polished rod place between described positioning wheel and transition gear 15 is provided with shift fork, and described shift fork is connected to changer lever 18, and described changer lever 18 extends outside body 1;
The top board of body 1 is provided with linear guides 22, fits through with linear guides 22 upper saw pulley 19 that fixed support 20 is provided with more than two.
Described transition gear 15, first gear 9 and the second gear 10 are all positioned at the cover cap 25 that body 1 outside is connected to, and it is outside that described crank 24 and changer lever 18 are all positioned at cover cap 25.
Advantageous Effects of the present utility model embodies in the following areas:
1. the moment of torsion that inputted by external motor of the utility model, engaging each other between driven gear, as machine operation initiatively; By the accurate velocity ratio of worm and gear, gear mesh force is transferred on worm screw, thus drives the rotation of worm gear; By the transmission of worm gear, drive transmission shaft, takes turns the torque transfer exported to cable wire, makes the turning to along worm gear that cable wire is taken turns, do positive and negative running, thus ensures that cable wire wheel obtains larger moment of torsion, and the lifting deceleration reaching limit for height controls; By engaging each other between gear, operation switches hand lever, and active operation is departed from, in force transfer to hand control; After initiatively departing from, when switching hand lever mediates, now, the engagement between gear is in idle running, does not bear any bearing capacity, and when switching hand lever and being in second gear and manual mode, now, engaging each other between gear, bears huge bearing capacity; Be applied on crank by operator's active force, do positive inverse operations, engaging each other between driven gear, ensure the positive and negative running of cable wire wheel, thus complete limit for height elevating control;
2. the utility model is by height limiter functional requirement and structural analysis, carries out die casting; By each processing accessories, carry out final assembly, good control size and tolerance fit, substantially increase stability in use; By the upper saw pulley on top, in wire rope parcel, linear guides is walked up and down, thus ensures that wire rope is not beated.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the cooperation schematic diagram of worm and gear and a pair bevel gear pair.
Fig. 3 is that changer lever and gear pair coordinate schematic diagram.
Sequence number in upper figure: body 1, cable wire wheel the 2, first transmission shaft 3, input pedestal 4, the 4th transmission shaft 5, first bevel gear 6, second bevel gear 7, second driving shaft 8, first gear 9, second gear 10, worm gear 11, worm screw 12, transition gear 15, ball handle 17, changer lever 18, upper saw pulley 19, fixed support 20, the 3rd transmission shaft 21, linear guides 22, crank 24, cover cap 25.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is further described.
Embodiment:
See Fig. 1, the lifting controllable reduction device for road vehicle limit for height comprises body 1 and is positioned at the driving mechanism of body 1.Driving mechanism comprises the first transmission shaft 3, second driving shaft 8, the 3rd transmission shaft 21 and the 4th transmission shaft 5; One end of first transmission shaft 3 is installed with cable wire wheel 2, and the other end is installed with worm gear 11; See Fig. 2, the worm screw 12 coordinated with worm gear 11 is installed on the below of worm gear 11, and the opposite side of worm gear 11 is polished rod, polished rod is installed with transition gear 15, and worm gear 11 is perpendicular to the first transmission shaft 3.One end that the parallel beneath of the first transmission shaft 3 is provided with the 4th transmission shaft the 5, four transmission shaft 5 is installed with input pedestal 4, and the other end is installed with the first bevel gear 6.The second bevel gear 7 engaged with the first bevel gear 6 is fixedly installed in one end of second driving shaft 8, sees Fig. 2, and the other end of second driving shaft 8 is installed with the first gear 9, the parallel below being positioned at worm screw 12 of second driving shaft 8.Transition gear 15 engages with the first gear 9, second gear 10 respectively, sees Fig. 3; Second gear 10 is located on body 1 by the 3rd transmission shaft 21, and is positioned at the side of the first gear 9; 3rd transmission shaft 21 is parallel to second driving shaft 8, and one end of the 3rd transmission shaft 21 extends outside body 1, and the overhanging end of the 3rd transmission shaft 21 is installed with crank 24.Transition gear 15, first gear 9 and the second gear 10 are all positioned at the cover cap 25 that body 1 outside is connected to, and it is outside that crank 24 and changer lever 18 are all positioned at cover cap 25.
The rod end of the opposite side polished rod of the worm gear 11 corresponding with transition gear 15 is installed with positioning wheel, sees Fig. 1, and the polished rod place between positioning wheel and transition gear 15 is provided with shift fork, and shift fork is connected to changer lever 18, and changer lever 18 extends outside body 1; The external stability of changer lever 18 is provided with ball handle 17.
The top board of body 1 is installed with linear guides 22, fits through fixed support 20 with linear guides 22 and three upper saw pulleys 19 are installed.
Working principle of the present utility model is described as follows:
During utility model works, the cable wire realizing lifting is taken turns on 2 through two spatial position three upper saw pulleys 19 across around cable wire, in this, as the output rotary action body connecting external motor, cable wire wheel 2 is as the output terminal beaer of this device, utilize the input of external motor, drive the 4th transmission shaft 5; By the engagement of second bevel gear 7 of the first bevel gear 6, utilize the switching of ball handle 17, changer lever 18, the first gear 9 and transition gear 15 are meshed, drive worm screw 12, by the engagement of worm gear 11 and worm screw 12, make the first transmission shaft 3 be with running wire to take turns 2 and do positive and negative running.When external motor exports forward signal control, above-mentioned principle is in forward running, and now, cable wire wheel 2 is in rising working state; When external motor exports reverse signal control, said structure is in antiport, and now, cable wire wheel 2 is in descent mode.
When there is power failure or emergency condition, now the 3rd transmission shaft 8 is power input shaft, utilizes the hand handle 24 of hand rotation, and transition gear 15 and the second gear 10 are meshed, drive worm screw 12 and worm gear 11 engagement driving, thus make the first transmission shaft 3 be with running wire wheel 2 to do positive and negative running.When crank 24 clockwise hand time, i.e. forward running, cable wire wheel 2 is in rising working state; Crank 24 is counterclockwise hand time, i.e. antiport, cable wire wheel 2 is in descent mode.
Claims (5)
1., for the lifting controllable reduction device of road vehicle limit for height, comprise body (1) and be positioned at the driving mechanism of body (1); It is characterized in that: described driving mechanism comprises the first transmission shaft (3), second driving shaft (8), the 3rd transmission shaft (21) and the 4th transmission shaft (5); One end of described first transmission shaft (3) is provided with cable wire wheel (2), and the other end is provided with worm gear (11); The worm screw (12) coordinated with worm gear (11) is located at the below of worm gear (11), and the opposite side of described worm gear (11) is polished rod, and described polished rod is provided with transition gear (15), and worm gear (11) is perpendicular to the first transmission shaft (3); The parallel beneath of the first transmission shaft (3) is provided with the 4th transmission shaft (5), and one end of the 4th transmission shaft (5) is provided with input pedestal (4), and the other end is provided with the first bevel gear (6); The second bevel gear (7) engaged with the first bevel gear (6) is located at one end of second driving shaft (8), and the other end of second driving shaft (8) is provided with the first gear (9), the parallel below being positioned at worm screw (12) of described second driving shaft (8); Described transition gear (15) engages with the first gear (9), the second gear (10) respectively; Described second gear (10) is located on body (1) by the 3rd transmission shaft (21), and is positioned at the side of the first gear (9); Described 3rd transmission shaft (21) is parallel to second driving shaft (8), and one end of the 3rd transmission shaft (21) extends body (1) outward, and the overhanging end of the 3rd transmission shaft (21) is provided with crank (24);
The rod end of the opposite side polished rod of the worm gear (11) corresponding with transition gear (15) is provided with positioning wheel, polished rod place between described positioning wheel and transition gear (15) is provided with shift fork, described shift fork is connected to changer lever (18), and described changer lever (18) extends body (1) outward;
The top board of body (1) is provided with linear guides (22), fits through with linear guides (22) upper saw pulley (19) that fixed support (20) is provided with more than two.
2. the lifting controllable reduction device for road vehicle limit for height according to claim 1, it is characterized in that: described transition gear (15), the first gear (9) and the second gear (10) are all positioned at the cover cap (25) that body (1) outside is connected to, it is outside that described crank (24) and changer lever (18) are all positioned at cover cap (25).
3. the lifting controllable reduction device for road vehicle limit for height according to claim 2, is characterized in that: described cover cap (25) is in cube.
4. the lifting controllable reduction device for road vehicle limit for height according to claim 1, is characterized in that: the outside of described changer lever (18) is provided with ball handle (17).
5. the lifting controllable reduction device for road vehicle limit for height according to claim 1, is characterized in that: described fixed support (20) is provided with three upper saw pulleys (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420570502.3U CN204253776U (en) | 2014-09-30 | 2014-09-30 | For the lifting controllable reduction device of road vehicle limit for height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420570502.3U CN204253776U (en) | 2014-09-30 | 2014-09-30 | For the lifting controllable reduction device of road vehicle limit for height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253776U true CN204253776U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420570502.3U Active CN204253776U (en) | 2014-09-30 | 2014-09-30 | For the lifting controllable reduction device of road vehicle limit for height |
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| Country | Link |
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| CN (1) | CN204253776U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329431A (en) * | 2014-09-30 | 2015-02-04 | 安徽四创电子股份有限公司 | Ascending and descending controllable deceleration device for road vehicle height limitation |
| CN105648939A (en) * | 2016-01-13 | 2016-06-08 | 江苏华海钢结构有限公司 | Adjustable road vehicle height limiting frame |
-
2014
- 2014-09-30 CN CN201420570502.3U patent/CN204253776U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329431A (en) * | 2014-09-30 | 2015-02-04 | 安徽四创电子股份有限公司 | Ascending and descending controllable deceleration device for road vehicle height limitation |
| CN105648939A (en) * | 2016-01-13 | 2016-06-08 | 江苏华海钢结构有限公司 | Adjustable road vehicle height limiting frame |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |