CN201963811U - Automatic shift two-speed speed changing box and wheel-mounted crane thereof - Google Patents
Automatic shift two-speed speed changing box and wheel-mounted crane thereof Download PDFInfo
- Publication number
- CN201963811U CN201963811U CN2011200379166U CN201120037916U CN201963811U CN 201963811 U CN201963811 U CN 201963811U CN 2011200379166 U CN2011200379166 U CN 2011200379166U CN 201120037916 U CN201120037916 U CN 201120037916U CN 201963811 U CN201963811 U CN 201963811U
- Authority
- CN
- China
- Prior art keywords
- gear
- shaft
- hydraulic
- friction clutches
- hydraulic friction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model discloses an automatic shift two-speed speed changing box and a wheel-mounted crane thereof. The speed changing box comprises a box body, wherein the box body is internally provided with an input shaft, a middle shaft, an output shaft and a driving shaft which is coaxial with the input shaft; a high gear driving gear is fixedly arranged on the input shaft; a low gear driving gear and a second hydraulic friction clutch are fixedly arranged on the driving shaft; a high gear driven gear, a low gear driven gear and a first hydraulic friction clutch are arranged on the middle shaft; the output shaft is connected with the middle shaft by a pair of normally engaged gear pairs in a meshing way; and a hydraulic displacement detecting device and a hydraulic steering valve which changes the flow direction of hydraulic oil to clutch different hydraulic friction clutches according to a hydraulic displacement signal are arranged on the control oil ways of the hydraulic friction clutches. The wheel-mounted crane adopts the speed changing box. The utility model has the advantages of being simple in structure, long in service life of the gear, high in drive precision, large in transferable torque, and small in gear shift impact.
Description
Technical field
The utility model is mainly concerned with engineering vehicle, but particularly is used for the gearbox of the automaitc shfit of wheel mounted crane.
Background technique
The harbour wheel mounted crane will satisfy level land and two kinds of driving cycles of climbing because of in the running process, therefore need adorn a gearbox between oil hydraulic motor and transmission shaft, to satisfy it in the conversion between the speed of travel under these two kinds of operating modes.Because speed and moment of torsion under these two kinds of operating modes differ bigger, so need to adopt a kind of gearshift mechanism.The walking gearbox gear-shift mechanism that is used for the port machine tyre hoist at present generally adopts the shift fork gear shift, and as shown in Figure 1, the gear engagement by shift fork piece 22 and two pairs of duplicate gears 23 realizes gear shift.There is following problem in this kind gearbox designs in assembling and using process:
(1), during the gear shift of shift fork piece, need to move and another duplicate gear engagement, because the rotation of gear can produce the tooth situation relative with tooth, can produce very big impact like this, and be attended by vibrations, thereby can shorten the working life of gear;
(2), the machining accuracy of duplicate gear is lower, thereby can influence transmission accuracy and working life;
(3), when gear shift, can only be very low (, could realize under the situation of all the other thread forms≤300r/min) rectangle tooth speed discrepancy≤10r/min in state of rest or rotating speed.
The model utility content
Technical problem to be solved in the utility model is: at the deficiencies in the prior art, provide a kind of control simple and convenient, can when speed discrepancy differs under the bigger situation smooth shifting, gear shift, impact little and can automaitc shfit double-velocity transmission and wheel mounted crane thereof.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of automaitc shfit double-velocity transmission, comprise casing, in the described casing input shaft is installed, jack shaft, output shaft and with the driving shaft of input shaft coaxial line, fixing installing one top gear driving gear on the described input shaft, second hydraulic friction clutches that fixing installing one a bottom gear driving gear and an end are connected with described input shaft on the described driving shaft, be equiped with top gear driven gear on the described jack shaft with described each driving gear engagement, first hydraulic friction clutches that a bottom gear driven gear and an end are connected with described top gear driven gear, described output shaft is connected with a joggle with jack shaft by a pair of constant mesh gear is secondary, the control oil channel of described hydraulic friction clutches be provided with hydraulic pressure discharge capacity detection device and according to hydraulic pressure discharge capacity signal change hydraulic oil flow to so that the hydraulicdirectional control valve of different hydraulic friction clutches clutches.
As to further improvement of the utility model:
Described second hydraulic friction clutches is located between described top gear driving gear and the bottom gear driving gear, the splined hub of described second hydraulic friction clutches is connected on the described input shaft outer wall by spline housing, and the rotation hub of second hydraulic friction clutches is located on the described driving shaft outer wall by spline housing.
Described first hydraulic friction clutches is located at an end of described jack shaft, described first hydraulic friction clutches the rotation hub by spline and described jack shaft socket, the splined hub of first hydraulic friction clutches and described top gear driven gear are structure as a whole, described top gear driven gear by roller bearings on described jack shaft.
Described jack shaft is provided with first oil transportation channel, described first oil transportation channel, one end communicates with the oil cylinder of described first hydraulic friction clutches, the first oil transportation channel the other end communicates with described hydraulicdirectional control valve by pipeline, described driving shaft is provided with second oil transportation channel, described second oil transportation channel, one end communicates with the oil cylinder of described second hydraulic friction clutches, and the second oil transportation channel the other end communicates with described hydraulicdirectional control valve by pipeline.
Described input shaft, jack shaft and output shaft are arranged in parallel, and described each engaging gear is helical gear.
The utility model further provides a kind of wheel mounted crane, comprise chassis and last dress, the bottom of frame on described chassis is equiped with gearbox, the input end of described gearbox is connected with the output terminal of oil hydraulic motor, the output terminal of gearbox is connected with transmission shaft, and described gearbox is above-mentioned automaitc shfit double-velocity transmission.
Compared with prior art, advantage of the present utility model is:
1, automaitc shfit double-velocity transmission of the present utility model, on two axles that separate, hydraulic friction clutches respectively is set independently as gearshift mechanism, and the hydraulicdirectional control valve of hydraulic pressure discharge capacity detection device and may command hydraulic oil outbound course is set on its control oil channel, can utilize the oil pressure of hydraulic friction clutches piston cylinder to compress its friction plate, reach the purpose of transmitting torque.Can not produce the tooth situation relative during gear shift, impact lessly, can differ smooth shifting under the bigger situation, and its operation control ratio is easier at speed discrepancy with tooth, can remote-controlled operation, realize automaitc shfit.Have simple in structure, service life of gear is long, transmission accuracy is high, transferable torque is big, start advantage stably.
2, wheel mounted crane of the present utility model because of having adopted automaitc shfit double-velocity transmission of the present utility model, therefore also should possess above-mentioned advantage.
Description of drawings
Fig. 1 is the structural representation of gearshift mechanism in the prior art;
Fig. 2 is the structural representation of the utility model automaitc shfit double-velocity transmission;
Fig. 3 is the hydraulic principle schematic representation of the utility model automaitc shfit double-velocity transmission;
Fig. 4 is the structural representation of the utility model wheel mounted crane.
Marginal data
1, casing; 2, input shaft; 3, jack shaft; 31, first oil transportation channel; 4, output shaft; 5, driving shaft; 51, second oil transportation channel; 6, top gear driving gear; 7, bottom gear driving gear; 8, top gear driven gear; 9, bottom gear driven gear; 10, first hydraulic friction clutches; 11, second hydraulic friction clutches; 12, hydraulic pressure discharge capacity detection device; 13, hydraulicdirectional control valve; 14,15, constant mesh gear pair; 17, chassis; 18, go up dress; 19, oil hydraulic motor; 20, transmission shaft; 21, gearbox; 22, shift fork piece; 23, duplicate gear.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing the utility model is further described.
As shown in Figures 2 and 3, automaitc shfit double-velocity transmission of the present utility model, comprise casing 1, input shaft 2 is installed in the casing 1, jack shaft 3, output shaft 4 and with the driving shaft 5 of input shaft 2 coaxial lines, fixing installing one top gear driving gear 6 on the input shaft 2, second hydraulic friction clutches 11 that fixing installing one a bottom gear driving gear 7 and an end are connected with input shaft 2 on the driving shaft 5, be equiped with top gear driven gear 8 on the jack shaft 3 with each driving gear engagement, first hydraulic friction clutches 10 that a bottom gear driven gear 9 and an end are connected with top gear driven gear 8, output shaft 4 is by a pair of constant mesh gear pair 14,15 are connected with a joggle with jack shaft 3, the control oil channel of hydraulic friction clutches be provided with hydraulic pressure discharge capacity detection device 12 and according to hydraulic pressure discharge capacity signal change hydraulic oil flow to so that the hydraulicdirectional control valve 13 of different hydraulic friction clutches clutches.By hydraulic friction clutches respectively is set independently on jack shaft 3 that separates and driving shaft 5 as gearshift mechanism, and the hydraulicdirectional control valve 13 of hydraulic pressure discharge capacity detection device 12 and may command hydraulic oil outbound course is set on its control oil channel, control the torque of oil hydraulic motor 19 outputs (being subjected to the resistance synchronous) by detecting the hydraulic pressure displacement size with tire, hydraulicdirectional control valve 13 is the outbound course of changeable hydraulic oil, utilize the oil pressure of hydraulic friction clutches piston cylinder to compress its friction plate, reach the automatic switchover of transmitting between different two kinds of gears of torque realization.Can not produce the tooth situation relative during this structure gear shift, impact lessly, can differ smooth shifting under the bigger situation, and its operation control ratio is easier at speed discrepancy with tooth, can remote-controlled operation.
In the present embodiment, input shaft 2, jack shaft 3, output shaft 4 and driving shaft 5 are arranged in parallel, and each engaging gear is helical gear.Input shaft 2 one ends link to each other with the output terminal of oil hydraulic motor 19, the other end is supported in the middle part of casing 1 by ball bearing, driving shaft 5 one ends are supported in the set endoporus of input shaft 2 output terminals by linear bearing, and the other end is supported on the casing 1 by ball bearing, and its end is provided with hubcap.Jack shaft 3 two ends all are supported on the casing 1 by roller bearing, and two ends are equipped with hubcap.Output shaft 4 is installed on the casing 1 by roller bearing, and its output terminal stretches out outside the casing 1, and is connected with the adpting flange that is used to connect transmission shaft 20.
Second hydraulic friction clutches 11 is located between top gear driving gear 6 and the bottom gear driving gear 7, the splined hub of second hydraulic friction clutches 11 is connected on input shaft 2 outer walls by spline housing, and the rotation hub of second hydraulic friction clutches 11 is located on driving shaft 5 outer walls by spline housing.Driving shaft 5 is provided with second oil transportation channel, 51, the second oil transportation channels, 51 1 ends and communicates with the oil cylinder of second hydraulic friction clutches 11, and second oil transportation channel, 51 the other ends communicate with inlet opening on the hubcap, and pipeline communicates with hydraulicdirectional control valve 13.
When the low speed operating mode, hydraulic oil is imported second hydraulic friction clutches 11, the piston of second hydraulic friction clutches 11 compresses in it, outside friction disc, make it be in the state of joint, this moment, the piston of first hydraulic friction clutches 10 was return original position under the effect of Returnning spring, in it, outside friction disc disconnects, vice division chief of high speed gear is in idling conditions, the rotating speed of oil hydraulic motor input passes through the interior friction plate of second hydraulic friction clutches 11 successively, outside friction disc, rotate hub and pass to driving shaft 5, driving shaft 5 rotates synchronously, drive secondary rotation of bootom gear and pass to jack shaft 3, pass to output shaft 4 outputs by the constant mesh gear pair again.
In the present embodiment, first hydraulic friction clutches 10 is located at the end of jack shaft 3 by input shaft 2, and between top gear driven gear 8 and casing 1, top gear driven gear 8 by roller bearings on jack shaft 3, the splined hub of first hydraulic friction clutches 10 is connected with top gear driven gear 8, be structure as a whole in the present embodiment, first hydraulic friction clutches 10 the rotation hub by spline and jack shaft 3 sockets.Jack shaft 3 is provided with first oil transportation channel, 31, the first oil transportation channels, 31 1 ends and communicates with the oil cylinder of first hydraulic friction clutches 10, and first oil transportation channel, 31 the other ends communicate with inlet opening on the hubcap, and communicate with hydraulicdirectional control valve 13 by pipeline.
When high-speed working condition, hydraulic oil is imported first hydraulic friction clutches 10, the piston of first hydraulic friction clutches 10 compresses its inside and outside friction plate, this moment, the inside and outside friction plate of second hydraulic friction clutches 11 disconnected, driving shaft 5 does not rotate, the rotating speed of oil hydraulic motor input is passed to jack shaft 3 by high speed gear's pair, the interior friction plate of first hydraulic friction clutches 10, outside friction disc, rotation hub successively, and jack shaft 3 rotations drive secondary rotation of constant mesh gear and pass to output shaft 4 outputs.
As shown in Figure 4, wheel mounted crane of the present utility model, comprise chassis 17 and on adorn 18, the bottom of frame on chassis 17 is equiped with gearbox 21, the input end of gearbox 21 is connected with the output terminal of oil hydraulic motor 19, the output terminal of gearbox 21 is connected with transmission shaft 20, and gearbox 21 is above-mentioned automaitc shfit double-velocity transmission.
The above only is a preferred implementation of the present utility model, and protection domain of the present utility model also not only is confined to the foregoing description, and all technological schemes that belongs under the utility model thinking all belong to protection domain of the present utility model.Should be pointed out that for those skilled in the art the some improvements and modifications not breaking away under the utility model principle prerequisite all should be considered as protection domain of the present utility model.
Claims (6)
1. automaitc shfit double-velocity transmission, comprise casing (1), it is characterized in that: input shaft (2) is installed in the described casing (1), jack shaft (3), output shaft (4) and with the driving shaft (5) of input shaft (2) coaxial line, described input shaft (2) is gone up fixing installing one top gear driving gear (6), second hydraulic friction clutches (11) that upward fixing installing one a bottom gear driving gear (7) of described driving shaft (5) and an end are connected with described input shaft (2), be equiped with top gear driven gear (8) on the described jack shaft (3) with described each driving gear engagement, first hydraulic friction clutches (10) that a bottom gear driven gear (9) and an end are connected with described top gear driven gear (8), described output shaft (4) is by a pair of constant mesh gear pair (14,15) be connected with a joggle with jack shaft (3), the control oil channel of described hydraulic friction clutches be provided with hydraulic pressure discharge capacity detection device (12) and according to hydraulic pressure discharge capacity signal change hydraulic oil flow to so that the hydraulicdirectional control valve of different hydraulic friction clutches clutches (13).
2. automaitc shfit double-velocity transmission according to claim 1, it is characterized in that: described second hydraulic friction clutches (11) is located between described top gear driving gear (6) and the bottom gear driving gear (7), the splined hub of described second hydraulic friction clutches (11) is connected on described input shaft (2) outer wall by spline housing, and the rotation hub of second hydraulic friction clutches (11) is located on described driving shaft (5) outer wall by spline housing.
3. automaitc shfit double-velocity transmission according to claim 2, it is characterized in that: described first hydraulic friction clutches (10) is located at an end of described jack shaft (3), described first hydraulic friction clutches (10) the rotation hub by spline and described jack shaft (3) socket, the splined hub of first hydraulic friction clutches (10) and described top gear driven gear (8) are structure as a whole, described top gear driven gear (8) by roller bearings on described jack shaft (3).
4. automaitc shfit double-velocity transmission according to claim 3, it is characterized in that: described jack shaft (3) is provided with first oil transportation channel (31), described first oil transportation channel (31) one ends communicate with the oil cylinder of described first hydraulic friction clutches (10), first oil transportation channel (31) the other end communicates with described hydraulicdirectional control valve (13) by pipeline, described driving shaft (5) is provided with second oil transportation channel (51), described second oil transportation channel (51) one ends communicate with the oil cylinder of described second hydraulic friction clutches (11), and second oil transportation channel (51) the other end communicates with described hydraulicdirectional control valve (13) by pipeline.
5. according to each described automaitc shfit double-velocity transmission in the claim 1～4, it is characterized in that: described input shaft (2), jack shaft (3) and output shaft (4) are arranged in parallel, and described each engaging gear is helical gear.
6. wheel mounted crane, comprise chassis (17) and last dress (18), the bottom of frame on described chassis (17) is equiped with gearbox (21), the input end of described gearbox (21) is connected with the output terminal of oil hydraulic motor (19), the output terminal of gearbox (21) is connected with transmission shaft (20), it is characterized in that: described gearbox (21) is each described automaitc shfit double-velocity transmission in the claim 1～5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200379166U CN201963811U (en) | 2011-02-14 | 2011-02-14 | Automatic shift two-speed speed changing box and wheel-mounted crane thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200379166U CN201963811U (en) | 2011-02-14 | 2011-02-14 | Automatic shift two-speed speed changing box and wheel-mounted crane thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963811U true CN201963811U (en) | 2011-09-07 |
Family
ID=44526347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200379166U Expired - Fee Related CN201963811U (en) | 2011-02-14 | 2011-02-14 | Automatic shift two-speed speed changing box and wheel-mounted crane thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963811U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384255A (en) * | 2011-09-09 | 2012-03-21 | 三一集团有限公司 | Automatic shift type speed changing box device and rubber-tyred engineering machinery |
| CN102927212A (en) * | 2012-09-26 | 2013-02-13 | 杭州萧山江南通用机械厂 | Gear case for decelerating or accelerating |
| CN103851135A (en) * | 2014-03-11 | 2014-06-11 | 江苏赫夫特齿轮制造有限公司 | High-power double-speed-ratio gearbox |
| CN104534032A (en) * | 2014-12-16 | 2015-04-22 | 山东永华机械有限公司 | Machine tool main shaft speed changing box |
-
2011
- 2011-02-14 CN CN2011200379166U patent/CN201963811U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384255A (en) * | 2011-09-09 | 2012-03-21 | 三一集团有限公司 | Automatic shift type speed changing box device and rubber-tyred engineering machinery |
| WO2013033992A1 (en) * | 2011-09-09 | 2013-03-14 | 三一集团有限公司 | Automatic shifting transmission device and tyred engineering machinery |
| CN102927212A (en) * | 2012-09-26 | 2013-02-13 | 杭州萧山江南通用机械厂 | Gear case for decelerating or accelerating |
| CN103851135A (en) * | 2014-03-11 | 2014-06-11 | 江苏赫夫特齿轮制造有限公司 | High-power double-speed-ratio gearbox |
| CN104534032A (en) * | 2014-12-16 | 2015-04-22 | 山东永华机械有限公司 | Machine tool main shaft speed changing box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201679916U (en) | Two-gear gearbox assembly for electric bus | |
| CN204367890U (en) | For two grades of hydraulic control speed changing driver elements of electronlmobil | |
| CN102374277A (en) | Two-file transmission case of electric motor coach | |
| CN201472161U (en) | Automotive transfer case with locking differential mechanism | |
| CN201963811U (en) | Automatic shift two-speed speed changing box and wheel-mounted crane thereof | |
| CN107740848A (en) | A kind of shift transmission of differential type two | |
| CN204064651U (en) | For the test unit that driving axis bevel gear meshing mark loads | |
| CN101856972B (en) | Vehicle hydraulic mechanical transmission system for mine | |
| CN204061851U (en) | Built-in clutch and shift control mechanism thereof | |
| CN204267619U (en) | The two jack shaft 12 grades of heavy-duty transmission assemblies of Al-alloy casing | |
| CN101525035A (en) | Combined high-speed motor reduction and double cam automatic transmission integrated device | |
| CN202132464U (en) | Transfer case of articulated vehicle | |
| CN103557253B (en) | Two hydrotransmitter planetary transmission two axle friction disk type brake couplings | |
| CN204061854U (en) | 6 gear gearbox jack shafts three keep off gear side power take-off | |
| CN103303116B (en) | Single power of motor shunting coupling speed change system | |
| CN202149184U (en) | Transmission device of articulated vehicle | |
| CN203500431U (en) | Power take-off type multi-gear speed changer | |
| CN205859085U (en) | A kind of automatic gear-box for electric motor car | |
| CN201547211U (en) | Hydraulic speed changer | |
| CN103759000B (en) | Built-in clutch and selector device thereof | |
| CN100491150C (en) | Novel force utilizing device for special automobile working device | |
| CN201038914Y (en) | Electric vehicle separated shift-variable deceleration motor | |
| CN204055380U (en) | 12 grades of gear box sub-case tween drive shaft rear-end power takeoff devices | |
| CN214007931U (en) | New forms of energy engineering machine tool dead axle formula gearbox assembly | |
| CN201322083Y (en) | Double motor traveling transmission case for hydraulic excavator |
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: 20110907 Termination date: 20130214 |