CN204784599U - Car total power power takeoff - Google Patents
Car total power power takeoff Download PDFInfo
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- CN204784599U CN204784599U CN201520172848.2U CN201520172848U CN204784599U CN 204784599 U CN204784599 U CN 204784599U CN 201520172848 U CN201520172848 U CN 201520172848U CN 204784599 U CN204784599 U CN 204784599U
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- power take
- mouth
- axle
- power
- mouth output
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Abstract
The utility model belongs to the technical field of the power takeoff, concretely relates to car total power power takeoff, the hollow gear shaft of input that sets up about including in the power takeoff casing and power takeoff are two, two below symmetries of power takeoff are provided with A mouth output shaft and B mouth output shaft, importing the anterior integral key shaft of hollow gear shaft and passing through the spline connection with PTO clutch spline hub, two power takeoffs bind two normal meshed gear through the spline, have cup jointed two idler gears through the cylindrical roller bearing, two normal meshed gear and the normal meshing of the hollow gear shaft back gear of input part, two idler gears and electromagnetic clutch's the quiet connection of still, electromagnetic clutch's moving plate with push away two splines connections on the dish and power takeoff, there is B mouth output gear at B mouth output shaft middle part through the spline connection, and spline and B mouth output flange coupling are passed through to its rear portion, there is A mouth output gear A mouth output shaft front portion through the spline connection, and spline and hydraulic clutch connection are passed through to its rear portion. This power takeoff is with low costs, the security is high.
Description
Technical field
The utility model belongs to power take-off technical field, is specifically related to a kind of automobile Full-power takeoff.
Background technique
Power take-off is the device that special purpose vehicle realizes Power output, the power take-off kind of current developed country special purpose vehicle reaches five or six thousand kinds, research and development patent has 300 multinomial, especially Europe and North America very high for the requirement of special purpose vehicle power take-off, present the trend that multiport exports and is with clutch, power taking maneuverability pattern has machinery, hydraulic pressure, pneumatic, automatically controlled etc., more common with pneumatic control.Domestic power take-off production development is relatively slow, and automobile Full-power takeoff product major part is the input of speed changer one axle power, and gears meshing cover or synchronizer are put into gear, and heavy goods vehicles is handled and mostly is gas control, and middle Light-duty Vehicle mostly is automatically controlled, can only force taking of parking, single delivery outlet; The product operation inconvenience of power taking of can driving a vehicle on a small quantity is poor for applicability.
Model utility content
The purpose of this utility model is the defect that exists for prior art and deficiency, provides that a kind of structure is simple, cost is low, Security is high, and the automobile Full-power takeoff of power taking of can driving a vehicle.
For achieving the above object, the utility model by the following technical solutions: be included in input hollow gear shaft setting up and down in power take-off housing and power take-off two axle; A mouth output shaft and B mouth output shaft is symmetrically arranged with below power take-off two axle; The anterior splined shaft of described input hollow gear shaft and PTO clutch splined hub pass through spline coupling,
Described power take-off two axle has two axle constant mesh gears by spline coupling, and is socketed with two axle free gears by roller bearing; Described two axle constant mesh gears often engage with the gear parts at input hollow gear shaft rear portion, the quiet connection of still of described two axle free gears and magnetic clutch, the moving plate of magnetic clutch and push-plate and power take-off two axle spline coupling;
There is B mouth output gear at the middle part of described B mouth output shaft by spline coupling, and its rear portion is connect by spline and B mouth output flange;
There is A mouth output gear described A mouth output shaft front portion by spline coupling, and its rear portion is connect by spline and hydraulic coupling.
Optimize, power take-off housing comprises interconnective power take-off protecgulum and power take-off back cover.
Optimize, there is gear pump described A mouth output shaft front end by plane key joint, and UNICOM bottom the import of described gear pump and power take-off back cover, gear delivery side of pump is by cooling unit and power take-off back cover top pressure lubrication mouth UNICOM.
Optimize, described cooling unit adopts outer Forced water cooling device.
Optimize, described input hollow gear shaft two ends are supported on power take-off protecgulum and speed changer one axle by input end four-point contact ball and input end roller bearing respectively; Described power take-off two axle two ends are supported on power take-off protecgulum and power take-off back cover respectively by two axial cylindrical roller bearings and two axle four-point contact balls.
Optimize, A mouth output shaft is supported on power take-off protecgulum and power take-off back cover by front-end A mouth deep groove ball bearing and rear end A mouth four-point contact ball respectively; B mouth output shaft is supported on power take-off protecgulum and power take-off back cover respectively by front end B mouth deep groove ball bearing and rear end B mouth four-point contact ball.
Optimize, described PTO clutch is be integrated in the spline driving disc with vibration damper in clutch cover and plate assembly, and is connect by bolt and clutch cover.
Optimize, auxiliary-drive casing external surface is provided with radiating fin.
Compared with prior art, the utility model has following useful technique effect: input hollow gear shaft setting up and down in power take-off housing and power take-off two axle, by arranging input hollow gear shaft front portion and PTO clutch spline coupling, utilize the PTO clutch independent of transmission master clutch to input the power of power take-off, solve Transmission gear when driving a vehicle power taking and switch the problem of difficulty.And by being symmetrical arranged A mouth output shaft and B mouth output shaft below power take-off two axle, realizing output mouth, the requirement of many power takings can be met.By arranging hydraulic coupling and magnetic clutch respectively at A mouth output shaft and two axles, the requirement that power take-off combines after engine ignition can be met, there is overload protection, not by the advantage of car load source of the gas restriction simultaneously.
Further, by being provided with gear pump and cooling unit, carrying out pressure lubrication on the one hand engaging gear and bearing, and carrying out the circulating cooling of oil in power take-off, controlling temperature rise on the other hand, ensure that magnetic clutch is at allowable temperature operated within range.
Further, by two-stage Helical gear Transmission, the noise of power take-off can be reduced, improve working life.
Further, be combined by four-point contact ball and common cylinder (ball) roller bearing, the axial force that helical gear engagement produces can be overcome, make again cost reduce, and install simple, easy to maintenance.
Further, by arranging radiating fin, effectively controlling temperature rise, ensureing that magnetic clutch is at allowable temperature operated within range.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is that the A-A of Fig. 1 is to unfolded drawing;
Fig. 3 is that the B-B of Fig. 1 is to unfolded drawing;
Fig. 4 is the utility model structure of main clutch schematic diagram;
Fig. 5 is the utility model PTO clutch configuration schematic diagram;
Wherein: 1, main clutch; 2, speed changer one axle; 3, PTO clutch; 4, hollow gear shaft is inputted; 5, input end four-point contact ball; 6, power take-off protecgulum; 7, input end roller bearing; 8, speed changer one axle deep groove ball bearing; 9, case of transmission; 10, speed changer two axle front end needle bearing; 11, transmission countershaft constant mesh gear; 12, two axle free gears; 13, roller bearing; 14, two axle four-point contact balls; 15, power take-off back cover; 16, magnetic clutch; 17, B mouth output gear; 18, B mouth output shaft; 19, B mouth output flange; 20, B mouth four-point contact ball; 21, B mouth deep groove ball bearing; 22, power take-off two axle; 23, two axial cylindrical roller bearings; 24, two axle constant mesh gears; 25, gear pump; 26, A mouth output gear; 27, A mouth output shaft; 28, hydraulic coupling; 29, A mouth four-point contact ball; 30, A mouth deep groove ball bearing.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Power take-off of the present utility model is positioned in the middle of clutch and speed changer, belongs to sandwich Full-power takeoff, and the input of its power is from the PTO clutch 3 independent of automobile main clutch 1, and see Fig. 4, main clutch 1 adopts the clutch drived disk assy of ordinary clutch; See Fig. 5, PTO clutch 3 is integrated in the spline driving disc with vibration damper in platen assembly, connect by bolt and clutch cover, and with platen, clutch cover one along with engine flywheel rotation, therefore the power of PTO clutch 3 is directly from the flywheel of motor, instead of clutch drived disk assy, therefore do not combine by main clutch 1 clutch drived disk assy and affect with being separated.
See Fig. 1, Fig. 2 and Fig. 3, Full-power takeoff overall structure of the present utility model is the full helical teeth transmission of four-axle type two-stage, and four axles, five gears, are included in input hollow gear shaft 4 setting up and down in power take-off housing and power take-off two axle 22; A mouth output shaft 27 and B mouth output shaft 18 is symmetrically arranged with below power take-off two axle 22; The anterior splined shaft of described input hollow gear shaft 4 and PTO clutch 3 splined hub are by spline coupling, and described power take-off two axle 22 has two axle constant mesh gears 24 by spline coupling, and is socketed with two axle free gears 12 by roller bearing 13; Described two axle constant mesh gears 24 often engage with the gear parts at input hollow gear shaft 4 rear portion, the quiet connection of still of described two axle free gears 12 and magnetic clutch 16, the moving plate of magnetic clutch 16 and push-plate and power take-off two axle 22 spline coupling; There is B mouth output gear 17 at the middle part of described B mouth output shaft 18 by spline coupling, and its rear portion is connect by spline and B mouth output flange 19; There is A mouth output gear 26 described A mouth output shaft 27 front portion by spline coupling, and its rear portion is connect by spline and hydraulic coupling 28.
Power take-off housing comprises interconnective power take-off protecgulum 6 and power take-off back cover 15.There is gear pump 25 A mouth output shaft 27 front end by plane key joint, and UNICOM bottom the import of described gear pump 25 and power take-off back cover 15, the outlet of gear pump 25 is by cooling unit and power take-off back cover 15 top pressure lubrication mouth UNICOM.Cooling unit adopts outer Forced water cooling device.Auxiliary-drive casing external surface is provided with radiating fin.
Input hollow gear shaft 4 is hollow shaft structure, be supported on power take-off protecgulum 6 and speed changer one axle 2 respectively by input end four-point contact ball 5 and input end roller bearing 7, its front portion is that the internal spline of external splines and PTO clutch 3 connects, and rear portion is that the input gear of power take-off often engages with two axle constant mesh gears 24; The axial force that gears meshing produces is born by input end four-point contact ball 5, whole input hollow gear shaft 4 be positioned at input end four-point contact ball 5 place, carry out spacing by bearing cap to input end four-point contact ball 5, being located through in the spacing endoporus inputting hollow gear shaft 4 of snap ring of input end roller bearing 7.
Power take-off two axle 22 is positioned at immediately below input hollow gear shaft 4, it is supported on power take-off protecgulum 6 and power take-off back cover 15 by two axial cylindrical roller bearings 23 of front end and two axle four-point contact balls 14 of rear end respectively, two axle constant mesh gears 24 and power take-off two axle 22 spline coupling, axial restraint is positioned two axial cylindrical roller bearings 23 by the shaft shoulder, two axle free gears 12 are supported on power take-off two axle 22 by two axial cylindrical roller bearings 13, two axle free gears 12 pass through the quiet connection of bolt with the still of magnetic clutch 16, the moving plate of magnetic clutch 16 and push-plate and two axle 22 spline couplings.Two axle free gears 12 and magnetic clutch 16 axially locating are by the shaft shoulder and spacer location.
A mouth output shaft 27 and B mouth output shaft 18 are positioned at the left and right sides, below (looking forward from speed changer rear end) of two axles 22, be arranged symmetrically with, in angle train, B mouth output shaft 18 is supported on power take-off protecgulum 6 and power take-off back cover 15 by front end B mouth deep groove ball bearing 21 and rear end B mouth four-point contact ball 20 respectively, B mouth output gear 17 is connect by spline and B mouth output shaft 18, axially locating is by the shaft shoulder and spacer location, B mouth output flange 19 is connect by spline and B mouth output shaft 18, axle cog engagement produce axial force born by rear end B mouth four-point contact ball 20.
A mouth output shaft 27 is supported on power take-off protecgulum 6 and power take-off back cover 15 by front-end A mouth deep groove ball bearing 30 and rear end A mouth four-point contact ball 29 respectively, A mouth output gear 26 is connect by spline and A mouth output shaft 27, axially locating by the shaft shoulder and spacer spacing, hydraulic coupling 28 is by flange coupling on power take-off back cover 1, and hydraulic coupling 28 internal spline hub and A mouth output shaft 27 external splines connect.Gear pump 25 by plane key joint in A mouth output shaft 27 front end, axle cog engagement produce axial force born by rear end A mouth four-point contact ball 29.The import of gear pump 25 and power take-off housing bottom UNICOM, the outlet of gear pump 25, by cooling unit and power take-off case top pressure lubrication mouth UNICOM, forms cooling and lubricating system.Wherein cooling unit adopts outer Forced water cooling device.
This power take-off has two horizontal symmetrical and arranges delivery outlet, and A mouth requires normal turning, and by dead axle strap clamp horn ring, system realizes output mouth horizontal arrangement; Structural configuration as shown in Figure 1, two axles 22 are positioned at immediately below hollow gear shaft 4, A mouth output shaft 27 and B mouth output shaft 18 lay respectively at the left and right sides, below and see from back to front, two axle constant mesh gears 24 often engage the power transmitted from PTO clutch with input hollow gear shaft 4, A mouth output gear 26 often engages with two axle constant mesh gears 24, output power to hydraulic coupling 28 by A mouth output shaft 27, one of effect of hydraulic coupling 28 ensures to start function normally to start, and disconnects load below before engine start; Another one effect plays overload protection to power take-off, and when after power take-off A mouth, load is excessive, the friction plate of hydraulic coupling 28 can skid.Compare domestic existing Full-power takeoff, the advantage of power take-off of the present utility model has output mouth, can meet the requirement of many power takings, has the function of overload protection simultaneously.
This power take-off arranges wet type multi-disc electromagnetic clutch 16 on two axles, the still of magnetic clutch 16 and the quiet connection of two axle free gear 12 bolts, frictional engagement is carried out with still under the electromagnetic force that the moving plate of magnetic clutch 16 produces in energising situation, therefore during power taking B mouth bringing onto load, magnetic clutch energising can carry out the output of power, and after can realizing engine ignition, the band of power taking B mouth carries combination.
Tradition is independent of the power take-off of speed changer active force, what adopt is air fork driven gear engagement gearshift, require that engine misses state carries out the combination of power take-off, driver's misoperation can not operate after engine ignition, bring significant limitation to use, if can cause serious consequence, tradition of comparing can be driven a vehicle the Full-power takeoff of power taking, power taking B mouth can be with a year startup, flexible operation after engine ignition, easy to use.
Current chassis of heavy-duty vehicle system can be with source of the gas, but for some middle-size and small-size special cars due to source of the gas difficult arrangement, generally source of the gas can not be with, and tradition just can not be applied by the power take-off of Pneumatic shift, this power take-off adopts magnetic clutch 16 to substitute pneumatic putting into gear, as long as car load storage battery has electric power storage just can normally work, do not affect by other ambient conditionss.
Due to this power take-off operating mode more complicated, built-in electromagnetic clutch 16 pairs of temperature have requirement, therefore the temperature rise of power take-off controls to be a key issue, employing power take-off housing arranges radiating fin, lubricant oil compulsory circulative cooling controls temperature rise, be specially: the oil of bottom half sucks by A mouth output shaft 27 and gear pump 25 plane key joint, then carry out forced water cooling, the oil of cooling enters power take-off by case top pressure lubrication mouth again, realizes oil circulation; The mode adopting full helical teeth transmission, bottom splash lubrication and top pressure lubrication to combine is to reduce the bearing capacity of noise and raising gear.
Input hollow gear shaft 4 rotation direction is left-handed, two axle constant mesh gear 24 rotation directions are dextrorotation, both can produce axial force at engagement, input hollow gear shaft 4 axial force forward, born by four-point contact ball 5, two axle constant mesh gear 24 axial forces backward, born by four-point contact ball 14, two axle free gear 12 rotation directions are dextrorotation, axial force forward after in conjunction with engage a gear, contrary with two axle constant mesh gear 24 axial force directions, a part of axial force can be offset, A mouth output gear 26 and B mouth output gear 17 are left-handed, bear axial force all backward, bear respectively by four-point contact ball 29 and four-point contact ball 20.The paired tapered roller bearing of existing employing of comparing bears the helical teeth transmission power take-off of axial force, adopts four-point contact ball to install simple, easy to maintenance, uses reliable.
This power take-off has two horizontal symmetrical and arranges delivery outlet, and A mouth often turns, by A mouth output shaft 27, B mouth, as required in conjunction with work, arranges that hydraulic coupling 28 can meet the requirement in conjunction with power taking after engine ignition; Improve safety in utilization, power take-off two axle 22 arranges that magnetic clutch 16 is to the break-make of control B mouth power, has the function of overload protection simultaneously, and compared with putting into gear with transmission air fork, not by the restriction of car load source of the gas.By arranging that gear pump 25 and external cooling unit realize the circulating cooling of oil and the pressure lubrication of power take-off upper gear and bearing in power take-off, effectively problem of temperature rise is solved, by arranging that the axial force of helical teeth engagement generation resisted by four-point contact ball by arranging radiating fin to strengthen at power take-off back cover 15 to dispel the heat.
Working procedure is as follows.Power take-off A mouth working procedure is: before engine ignition; hydraulic coupling 28 should be in off state; after engine ignition, power inputs to input hollow gear shaft 4 by PTO clutch 3; form normal meshing wheel frenulum by input hollow gear shaft 4, two axle constant mesh gear 25, A mouth output gear 26 to move A mouth output shaft 27 and often turn; it is combined by hydraulic coupling 28 that power taking A mouth will work, and when outside rear end, load is excessive, hydraulic coupling 28 can skid and play the function of overload protection simultaneously.
Power take-off B mouth working procedure: magnetic clutch 16 no electric circuit before engine ignition, as long as be energized to after igniting magnetic clutch 16, the moving plate of magnetic clutch 16 will under electromagnetic force, frictional engagement is carried out with the still of the magnetic clutch 16 be fixed on two axle free gears 12, engine power is by PTO clutch 3, input hollow gear shaft 4, two axle constant mesh gears 24, two axles 22, magnetic clutch 16 passes to two axle free gears 12, and two axle free gears 12 often engage with B mouth output gear 17, therefore power is by exporting to the B mouth output shaft 18 of B mouth output gear 17 spline coupling the output that flange plate 19 completes power.
Cooling and lubricating system working procedure: when after engine ignition, the gear pump 25 being linked in A mouth output shaft 27 will in the dynamic lower rotation of the normal meshing wheel frenulum of input hollow gear shaft 4, two axle constant mesh gear 24, A mouth output gear 26 composition, extract the oil of power take-off housing bottom, then through external forced water cooling, pressure lubrication mouth through power take-off housing tip pumps into, and carries out the pressure lubrication of gear.
Claims (8)
1. an automobile Full-power takeoff, is characterized in that, is included in input hollow gear shaft (4) setting up and down in power take-off housing and power take-off two axle (22); Power take-off two axle (22) below is symmetrically arranged with A mouth output shaft (27) and B mouth output shaft (18); The anterior splined shaft of described input hollow gear shaft (4) and PTO clutch (3) splined hub pass through spline coupling,
Described power take-off two axle (22) has two axle constant mesh gears (24) by spline coupling, and is socketed with two axle free gears (12) by roller bearing (13); Described two axle constant mesh gears (24) often engage with the gear parts at input hollow gear shaft (4) rear portion, the quiet connection of still of described two axle free gears (12) and magnetic clutch (16), the moving plate of magnetic clutch (16) and push-plate and power take-off two axle (22) spline coupling;
There is B mouth output gear (17) at the middle part of described B mouth output shaft (18) by spline coupling, and its rear portion is connect by spline and B mouth output flange (19);
There is A mouth output gear (26) described A mouth output shaft (27) front portion by spline coupling, and its rear portion is connect by spline and hydraulic coupling (28).
2. a kind of automobile Full-power takeoff according to claim 1, is characterized in that, power take-off housing comprises interconnective power take-off protecgulum (6) and power take-off back cover (15).
3. a kind of automobile Full-power takeoff according to claim 2, it is characterized in that, there is gear pump (25) described A mouth output shaft (27) front end by plane key joint, the import of described gear pump (25) and power take-off back cover (15) bottom UNICOM, the outlet of gear pump (25) is by cooling unit and power take-off back cover (15) top pressure lubrication mouth UNICOM.
4. a kind of automobile Full-power takeoff according to claim 3, is characterized in that, described cooling unit adopts outer Forced water cooling device.
5. a kind of automobile Full-power takeoff according to claim 2, it is characterized in that, described input hollow gear shaft (4) two ends are supported on power take-off protecgulum (6) and speed changer one axle (2) by input end four-point contact ball (5) and input end roller bearing (7) respectively; Described power take-off two axle (22) two ends are supported on power take-off protecgulum (6) and power take-off back cover (15) respectively by two axial cylindrical roller bearings (23) and two axle four-point contact balls (14).
6. a kind of automobile Full-power takeoff according to claim 2, it is characterized in that, A mouth output shaft (27) is supported on power take-off protecgulum (6) and power take-off back cover (15) by front-end A mouth deep groove ball bearing (30) and rear end A mouth four-point contact ball (29) respectively; B mouth output shaft (18) is supported on power take-off protecgulum (6) and power take-off back cover (15) respectively by front end B mouth deep groove ball bearing (21) and rear end B mouth four-point contact ball (20).
7. a kind of automobile Full-power takeoff according to claim 1, is characterized in that, described PTO clutch (3) for being integrated in the spline driving disc with vibration damper in clutch cover and plate assembly, and is connect by bolt and clutch cover.
8. a kind of automobile Full-power takeoff according to claim 1, it is characterized in that, auxiliary-drive casing external surface is provided with radiating fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520172848.2U CN204784599U (en) | 2015-03-25 | 2015-03-25 | Car total power power takeoff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520172848.2U CN204784599U (en) | 2015-03-25 | 2015-03-25 | Car total power power takeoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784599U true CN204784599U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520172848.2U Active CN204784599U (en) | 2015-03-25 | 2015-03-25 | Car total power power takeoff |
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| Country | Link |
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| CN (1) | CN204784599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728398A (en) * | 2015-03-25 | 2015-06-24 | 陕西法士特汽车传动集团有限责任公司 | Automobile full-power power takeoff |
-
2015
- 2015-03-25 CN CN201520172848.2U patent/CN204784599U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728398A (en) * | 2015-03-25 | 2015-06-24 | 陕西法士特汽车传动集团有限责任公司 | Automobile full-power power takeoff |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |