CN201183726Y - Speed variator for construction hoister - Google Patents
Speed variator for construction hoister Download PDFInfo
- Publication number
- CN201183726Y CN201183726Y CNU2008200172008U CN200820017200U CN201183726Y CN 201183726 Y CN201183726 Y CN 201183726Y CN U2008200172008 U CNU2008200172008 U CN U2008200172008U CN 200820017200 U CN200820017200 U CN 200820017200U CN 201183726 Y CN201183726 Y CN 201183726Y
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- Prior art keywords
- axle
- electromagnet
- gear
- slide rail
- construction
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- Expired - Fee Related
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Abstract
The utility model discloses a gear change mechanism applied to a building hoisting machine, which comprises an input shaft and a II shaft which are arranged in a reduction box body, wherein, at least two main drive gears with interval arrangement are arranged on the input shaft, two free gears meshed with the two main drive gears are arranged on the II shaft, and two slippage devices meshed with the end surfaces of the free gears are arranged on the II shaft; a transmission fork control mechanism driven by an electromagnet is arranged in the reduction box installed above the free gears. The gear change mechanism adopts a mechanical and electromagnetic control method, has more reliable usage and higher safety, can realize remote control, uses the transmission fork control mechanism driven by the electromagnet to achieve speed change, and has lower manufacturing cost.
Description
Technical field
The utility model relates to a kind of variable-speed gear for construction hoister.
Background technology
In order to realize the variation of building whim lifting-speed, existing four kinds of schemes are available, and a kind of is to select multiple speed motor for use, and second kind is to adopt the magnetic clutch speed change, and the third is to adopt double-motor scheme speed change, and the 4th kind is to adopt the converter technique speed governing.At present, all there is certain defective in these four kinds of schemes: at first, the speed adjustable range of multiple speed motor has certain limitation, and rush current is bigger during speed change, and the electrical fault rate is higher; Secondly, adopt the winch of magnetic clutch speed change owing to adopted no slip ring magnetic clutch speed change, safety improves greatly, but because camp site distribution and operate usually out of reach requirement also can make magnetic clutch break down; The 3rd, adopt double-motor scheme speed change, because of causing the technical requirements of mechanism parameter out of reach in the restriction that is subjected to motor manufacturing power, and automatically controlled complexity, cost is higher; The 4th, adopting the converter technique speed governing is a kind of advanced person's method, but because cost is higher, technology is complicated, and camp site distribution out of reach requirement etc. are former thereby use less at home.
Summary of the invention
The technical problems to be solved in the utility model provide a kind of safe, price is low, control simple variable-speed gear for construction hoister.
For solving the problems of the technologies described above, the utility model comprises input shaft, the II axle that is installed in the deceleration box, two final geares that are provided with at interval are housed on input shaft at least, two free gears of corresponding ingear with final gear are housed on the II axle, its constructional feature be on the II axle, be equipped with can with described free gear face ingear slide device, the fork control mechanism by solenoid actuated is installed on the deceleration box above the free gear.
Described slide device comprises the wheel hub that is fixedly mounted on the II axle, be equipped with on the wheel hub can move along its axis and can with free gear face ingear combined cover.
Described fork control mechanism comprises the support that is installed in the deceleration box, and support is provided with mounting hole and vertical chute, is coated with the slide rail that be arranged in parallel with the II axle in the mounting hole, is installed with the shift fork that combines with slide device on the slide rail; The electromagnet case that is communicated with its inner chamber is installed above deceleration box, be provided with electromagnet in the electromagnet case, by rocker shaft rocking arm is installed in the electromagnet case; an end of rocking arm is by the corresponding connection with electromagnet of connecting rod; the other end of rocking arm is hinged with vertical pull bar, vertically the lower end of pull bar is installed in the vertical chute of support; By fluted roller shaft sheave is installed on support, the bottom of described vertical pull bar and the end of slide rail are hinged on the sheave respectively.
On described electromagnet case, be provided with the spring that makes rocking arm be in horizontality and adjust piece near the connecting rod side.
The described final gear that is contained on the input shaft is three, three free gears of corresponding ingear with final gear are housed on the II axle, be provided with two groups of slide devices between three free gears, rack-mount slide rail has two, shift fork on every slide rail is corresponding with one group of slide device, is provided with interlocking plunger between two slide rails; Electromagnet in the electromagnet case and rocking arm respectively have three groups accordingly, one end of each rocking arm is by the corresponding connection with electromagnet of connecting rod, the other end of each rocking arm is hinged with a vertical pull bar, wherein the two ends of a slide rail are connected with two vertical pull bars by sheave respectively, and an end of another slide rail is connected by the vertical pull bar of sheave and another.
Three final geares that are provided with at interval are housed on the described input shaft, three free gears of corresponding ingear with final gear are housed on the II axle, on the II axle, be equipped with can with two groups of slide devices of described free gear face ingear.
Be provided with retainer spring and lock ball between described slide rail and the support.
After adopting said structure, since on the II axle, be equipped with can with described free gear face ingear slide device, fork control mechanism by solenoid actuated is installed on the deceleration box above the free gear, adopt the mode of machinery and electromagnetic combination, use more reliably, safety is higher, and can realize Long-distance Control, use the solenoid actuated fork control mechanism to realize speed change, low cost of manufacture simultaneously.
And three groups of final geares and free gear mesh are set, and adopt two groups of slide devices to realize speed change, make it have three kinds of speed outputs, and simple in structure.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail:
Fig. 1 is an integral structure structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model gear transmission part;
Fig. 3 is the structural representation of the utility model fork control mechanism;
Fig. 4 is the A-A cross-sectional view of Fig. 3;
Fig. 5 be Fig. 3 C to structural representation;
Fig. 6 is the B-B cross-sectional view of Fig. 5.
The specific embodiment
With reference to accompanying drawing, this variable-speed gear for construction hoister, it acts between reductor input shaft 8 and the II axle 9, Figure 2 shows that gear is in the neutral state, comprise the input shaft 8, the II axle 9 that are installed in the deceleration box, 3 final geares that are provided with at interval are housed on input shaft 8, three free gears of corresponding ingear with final gear (10,11,12) are housed on the II axle 9, free gear is bearing on the II axle 9 by antifriction-bearing box.Between 3 free gears on the II axle 9, be equipped with can with 2 groups of slide devices of described free gear face ingear, this slide device comprises the wheel hub (13,15) that is fixedly mounted on the II axle 9, wheel hub (13,15) is fixedly mounted on the II axle 9 by flat key, be equipped with on the wheel hub can move along its axis and can with free gear face ingear combined cover (14,16), combined cover is connected with wheel hub by spline, 3 free geared end are equipped with and the axial bonded assembly spline of combined cover, corresponding 2 the free gears of one of them combined cover.Fork control mechanism by solenoid actuated is installed on the deceleration box above the free gear, referring to Fig. 3, Fig. 4, this fork control mechanism comprises the support 17 that is installed in the deceleration box, support 17 is provided with mounting hole and vertical chute, be coated with 2 slide rails (18 that be arranged in parallel with II axle 9 in the mounting hole, 22), at 2 slide rails (18,22) be provided with interlocking plunger 24 between, be installed with the shift fork (19 that combines with combined cover in the slide device on every slide rail, 23), slide rail can be along the mounting hole horizontal motion on the support 17, and its position is determined by retainer spring 20 and lock ball 21.The electromagnet case 37 that is communicated with its inner chamber is installed above deceleration box, be provided with 3 groups of electromagnet 33 in the electromagnet case 37, by rocker shaft 31 3 rocking arms 30 are installed in the electromagnet case 37,3 rocking arms 30 can be around rocker shaft 31 swings separately, at neutral state, 3 rocking arms 30 are horizontal, this level attitude is guaranteed by three groups of springs 36 and adjustment piece 35, one end of each rocking arm 30 is by connecting rod 32 and the 33 corresponding connections of one group of electromagnet, the other end of each rocking arm 30 is hinged with a vertical pull bar 29, vertically the lower end of pull bar 29 is installed in the vertical chute of support 17, can slide up and down.On support 17,3 sheaves 27 are installed by fluted roller shaft 28, three sheaves 27 can be respectively around separately fluted roller shaft 28 rotations, the bottom of each vertical pull bar 29 and the end of slide rail are hinged on respectively on the sheave 27, wherein the two ends of a slide rail are connected with two vertical pull bars 29 by sheave 27 respectively, one end of another slide rail is connected with another vertical pull bar 29 by sheave 27, antifriction-bearing box 26 on connected respectively slide rail of two notches of every sheave 27 and the pull bar 29 is connected, and this bearing fixing is on the bearing pin 25 of slide rail or tie rod end.There is binding post 34 to use on the electromagnet case 37 for external source.
The principle of work of this variable-speed gear for construction hoister is as follows: as can be seen from Fig. 1, winch is driven by electrical motor 4, drive reel 5 work by coupler 3 drop-gear boxs 1, parking is realized by drg 2, stroke is by limiting device 7 controls, bearing pin otic placode 6 is joined weldering at the scene, and the variation of its speed then is to be realized by the transmission system in the drop-gear box 1 after the motor stall.
As can be seen from Fig. 2, when being in neutral state, three free gears (10,11,12) are bearing on the II axle 9 by antifriction-bearing box, power by input shaft 8 inputs can not be delivered on the II axle 9, and can only make above-mentioned three gears idle running, for the kinetic force that makes input is delivered on the II axle 9 and produces three kinds of different speed, then must make combined cover (14,16) do horizontal motion and make it to engage with the spline of three free geared end respectively.
For achieving the above object, this transmission system has designed two slide rails and two shift forks, in Fig. 3, Fig. 4 as seen, when the shift fork horizontal motion on the slide rail is stirred the splined engagement of combined cover and one of them free geared end, then the power of input shaft 8 inputs is delivered on the II axle 9 by flat key by this free gear, sliding hub and wheel hub, and has produced first kind of speed; In like manner, when driving the splined engagement of shift fork horizontal motion and another free geared end, slide rail then produced second kind of speed; When driving the splined engagement of shift fork horizontal motion and another free geared end, slide rail then produced the third speed.After a slide rail moves, then pin by interlocking plunger 24, another slide rail then can not move, thereby has guaranteed the safety of mechanism.The structure that is realized three kinds of speed changes by two slide rails and two shift forks and three free gears by two groups of slide devices has been shown in the illustrated embodiment, also can realize the structure of two kinds of speed changes by a slide rail and shift fork and two free gears by one group or two groups of slide devices, in like manner, can also realize speed changing structure more than four kinds.
So, how is the horizontal motion of shift fork realized? by Fig. 5, Fig. 6 as can be known, because shift fork and slide rail are fixed together, spur slide rail and just spurred shift fork, so, when sheave 27 during around separately fluted roller shaft 28 rotations, just the upwards perpendicular movement of pull bar 29 has been transformed into the horizontal motion of shift fork, the perpendicular movement that pull bar 29 makes progress then is to be swung around rocker shaft 31 by rocking arm 30 by electromagnet 33 downward tractive forces to produce.The downward tractive force that electromagnet 33 gets the generation of electric back is necessary enough big, it will overcome the elastic force of spring 36 and friction drag and other resistance that retainer spring 20 produces, then shift fork is moved to the gear of requirement, in fact; rocking arm 30 also is a kind of boosting lever, as long as select suitable lever ratio just can obtain satisfied result.In addition, spring 36 also must be reasonable in design, guarantees after electromagnet 33 dead electricity to cooperate with retainer spring 20 position that makes shift fork get back to neutral gear.
Claims (7)
1, a kind of variable-speed gear for construction hoister, comprise the input shaft (8), the II axle (9) that are installed in the deceleration box, two final geares that are provided with at interval are housed on input shaft (8) at least, two free gears of corresponding ingear with final gear are housed on the II axle (9), it is characterized in that on II axle (9), being equipped with can with described free gear face ingear slide device, the fork control mechanism by solenoid actuated is installed on the deceleration box above the free gear.
2, variable-speed gear for construction hoister according to claim 1 is characterized in that described slide device comprises the wheel hub that is fixedly mounted on the II axle (9), be equipped with on the wheel hub can move along its axis and can with free gear face ingear combined cover.
3, variable-speed gear for construction hoister according to claim 1, it is characterized in that described fork control mechanism comprises the support (17) that is installed in the deceleration box, support (17) is provided with mounting hole and vertical chute, be coated with the slide rail that be arranged in parallel with II axle (9) in the mounting hole, be installed with the shift fork that combines with slide device on the slide rail; The electromagnet case (37) that is communicated with its inner chamber is installed above deceleration box, be provided with electromagnet (33) in the electromagnet case (37), by rocker shaft (31) rocking arm (30) is installed in the electromagnet case (37); an end of rocking arm (30) is by connecting rod (32) and the corresponding connection of electromagnet (33); the other end of rocking arm (30) is hinged with vertical pull bar (29), vertically the lower end of pull bar (29) is installed in the vertical chute of support (17); Upward by fluted roller shaft (28) sheave (27) is installed at support (17), the bottom of described vertical pull bar (29) and the end of slide rail are hinged on respectively on the sheave (27).
4, variable-speed gear for construction hoister according to claim 3 is characterized in that going up close connecting rod (32) side at described electromagnet case (37) is provided with the spring (36) that makes rocking arm (30) be in horizontality and adjusts piece (35).
5, variable-speed gear for construction hoister according to claim 3, it is characterized in that the described final gear that is contained on the input shaft (8) is three, three free gears of corresponding ingear with final gear are housed on II axle (9), be provided with two groups of slide devices between three free gears, the slide rail that is installed on the support (17) has two, shift fork on every slide rail is corresponding with one group of slide device, is provided with interlocking plunger (24) between two slide rails; Electromagnet (33) and rocking arm (30) in the electromagnet case (37) respectively have three groups accordingly, one end of each rocking arm (30) is by connecting rod (32) and the corresponding connection of electromagnet (33), the other end of each rocking arm (30) is hinged with a vertical pull bar (29), wherein the two ends of a slide rail are connected with two vertical pull bars (29) by sheave (27) respectively, and an end of another slide rail is connected with another vertical pull bar (29) by sheave (27).
6, variable-speed gear for construction hoister according to claim 1, it is characterized in that being equipped with on the described input shaft (8) three final geares that are provided with at interval, three free gears of corresponding ingear with final gear are housed on the II axle (9), on II axle (9), be equipped with can with two groups of slide devices of described free gear face ingear.
7,, it is characterized in that being provided with between described slide rail and the support (17) retainer spring (20) and lock ball (21) according to each described variable-speed gear for construction hoister of claim 3-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200172008U CN201183726Y (en) | 2008-01-29 | 2008-01-29 | Speed variator for construction hoister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200172008U CN201183726Y (en) | 2008-01-29 | 2008-01-29 | Speed variator for construction hoister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201183726Y true CN201183726Y (en) | 2009-01-21 |
Family
ID=40271462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200172008U Expired - Fee Related CN201183726Y (en) | 2008-01-29 | 2008-01-29 | Speed variator for construction hoister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201183726Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224858B (en) * | 2008-01-29 | 2010-04-21 | 潍坊新奇机电工程有限公司 | Variable-speed gear for construction hoister |
| CN102328885A (en) * | 2010-07-14 | 2012-01-25 | 四川宏华石油设备有限公司 | Two-speed planetary speed reducer device |
| CN102718163A (en) * | 2012-06-21 | 2012-10-10 | 无锡市协兴港口机械有限公司 | Lifting mechanism for hoist |
| CN102730576A (en) * | 2012-06-21 | 2012-10-17 | 无锡市协兴港口机械有限公司 | Energy saving fixed type crane |
| CN102734398A (en) * | 2012-06-21 | 2012-10-17 | 无锡市协兴港口机械有限公司 | Speed reducer special for lifting mechanism of crane |
-
2008
- 2008-01-29 CN CNU2008200172008U patent/CN201183726Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224858B (en) * | 2008-01-29 | 2010-04-21 | 潍坊新奇机电工程有限公司 | Variable-speed gear for construction hoister |
| CN102328885A (en) * | 2010-07-14 | 2012-01-25 | 四川宏华石油设备有限公司 | Two-speed planetary speed reducer device |
| CN102718163A (en) * | 2012-06-21 | 2012-10-10 | 无锡市协兴港口机械有限公司 | Lifting mechanism for hoist |
| CN102730576A (en) * | 2012-06-21 | 2012-10-17 | 无锡市协兴港口机械有限公司 | Energy saving fixed type crane |
| CN102734398A (en) * | 2012-06-21 | 2012-10-17 | 无锡市协兴港口机械有限公司 | Speed reducer special for lifting mechanism of crane |
| CN102718163B (en) * | 2012-06-21 | 2016-02-24 | 无锡市协兴港口机械有限公司 | A kind of lifting mechanism for hoisting crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090121 Termination date: 20100129 |