CN109458449B - Power takeoff with adjustable center distance - Google Patents
Power takeoff with adjustable center distance Download PDFInfo
- Publication number
- CN109458449B CN109458449B CN201811375955.XA CN201811375955A CN109458449B CN 109458449 B CN109458449 B CN 109458449B CN 201811375955 A CN201811375955 A CN 201811375955A CN 109458449 B CN109458449 B CN 109458449B
- Authority
- CN
- China
- Prior art keywords
- bearing
- output shaft
- cap
- power takeoff
- input shaft
- 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.)
- Active
Links
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/06—Auxiliary drives from the transmission power take-off
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to a power takeoff, in particular to a power takeoff with adjustable center distance; the technical problems that the existing power takeoff shell is poor in universality, high in manufacturing cost and unfavorable for production management are solved. The technical scheme of the invention is as follows: the utility model provides an adjustable centre-to-centre spacing power takeoff, includes duplex gear, input shaft, output shaft, two bearings, first bearing cap, second bearing cap, power takeoff casing and slipping gear; an input shaft hole and an output shaft hole are arranged on the power takeoff shell in parallel; an input shaft is arranged in the input shaft hole; the two ends of the output shaft hole are provided with a first bearing cover and a second bearing cover; the output shaft is supported on the two bearing covers through bearings arranged at the two ends of the output shaft; the input shaft is provided with a duplex gear; the output shaft is provided with a sliding gear; the first bearing cover is uniformly provided with connecting holes along the circumferential direction; the distribution circles of the bearing mounting holes and the connecting holes are eccentrically arranged; the first bearing cap is a blank cap; the second bearing cap is similar in structure to the first bearing cap except that the second bearing cap is a transparent cap.
Description
Technical Field
The invention relates to a power takeoff, in particular to a power takeoff with adjustable center distance.
Background
The power takeoff is an important component for realizing power transmission between a special automobile and special equipment thereof, and is an additional device of the gearbox. In order to meet the requirements of different types of special automobiles, the output torque of the power takeoff is generally between 200 and 1300N.m, and the speed ratio value is between 0.7 and 1.4. The output torque of the power takeoff is different, the speed ratio is also different, and the center distance between the input shaft and the output shaft is necessarily also different.
As shown in fig. 1, the conventional bottom power take-off and side power take-off mainly comprise a double gear 101, an input shaft 102, an output shaft 103, a bearing 104, a first bearing cover 105, a second bearing cover 106, a power take-off housing 107, and a slip gear 108. In general, the bearing support hole of the output shaft of the power take-off is disposed on the power take-off housing 107, and the center distance between the input shaft and the output shaft of the power take-off is the distance between the input shaft hole and the output shaft hole on the power take-off housing. Because the center distance on the power take-off housing is a fixed value, different center distances necessarily correspond to different power take-off housings, and the power take-off housing has poor universality. Even if the same type of power take-off installed on the same series of speed variators is different in speed ratio and output torque requirements of the power take-off due to different host factories, a series of modified products still appear, so that the number of power take-off products is increased, the number of deformed parts of the power take-off products is also increased, and particularly for castings such as power take-off shell 107, the cost of the mould is also related, the manufacturing cost is higher, and meanwhile, the variety of products is too many, so that the enterprise lean production and management are not facilitated.
Disclosure of Invention
The invention provides a power takeoff with adjustable center distance, which aims to solve the technical problems that the existing power takeoff shell is poor in universality, high in manufacturing cost and unfavorable for production management.
The technical scheme of the invention is as follows:
the utility model provides an adjustable centre-to-centre spacing power takeoff, includes duplex gear, input shaft, output shaft, two bearings, first bearing cap, second bearing cap, power takeoff casing and slipping gear. The input shaft is provided with a duplex gear; a sliding gear is arranged on the output shaft; one row of gears in the sliding gear and the duplicate gear are meshed; the special feature is that:
an input shaft hole and an output shaft hole are arranged on the power takeoff shell in parallel; the input shaft is arranged in the input shaft hole; the first bearing cover and the second bearing cover are arranged at the two ends of the output shaft hole; the bearings are arranged in the first bearing cover and the second bearing cover; the bearings are supported at two ends of the output shaft.
The first bearing cover is provided with a bearing mounting hole; the first bearing cover is uniformly provided with connecting holes along the circumferential direction; the number of the connecting holes is at least three; the circle center of the bearing mounting hole and the circle center of the distribution circle of the connecting hole are eccentrically arranged; the first bearing cap is a blank cap.
The second bearing cap is similar in structure to the first bearing cap, except that the second bearing cap is a transparent cap.
Further, in order to quickly identify the eccentric direction of the bearing cover, an eccentric indication arrow is arranged on the first bearing cover.
Further, for convenience in assembly, the bearing is a tapered roller bearing.
Further, for easy dismounting, the number of the connecting holes is four.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the bearing mounting holes of the output shaft of the power takeoff are arranged in the bearing cover, the bearing mounting holes on the bearing cover and the circle centers of the distribution circles of the connecting holes on the periphery of the bearing cover are arranged eccentrically, the connecting holes of the bearing cover and the power takeoff shell are all in a circumferential uniform distribution mode, the bearing cover can rotate for a certain angle to be mounted with the power takeoff shell, and through changing different mounting angles, the positions of the output shaft axes which are different in the number of groups and the same as the number of the connecting holes relative to the positions of the input shaft of the power takeoff shell can be obtained, so that the meshing gears with different speed ratios and different center distances can be mounted in the same power takeoff shell, and therefore, a plurality of power takeoff products with different speed ratios and different center distances are obtained.
2. The invention realizes the universality of the power takeoff shell, reduces the manufacturing cost of the power takeoff, and is beneficial to the serialization of products and lean production and management.
3. The eccentric indication arrow is arranged on the bearing cover, so that the eccentric direction of the bearing cover can be rapidly identified, and the installation is more convenient.
4. The bearing is a tapered roller bearing, the outer ring of the tapered roller bearing is separated from the bearing body, and the assembly is more convenient.
Drawings
FIG. 1 is a block diagram of a conventional power take-off;
FIG. 2 is a block diagram of one embodiment of the present invention;
FIG. 3 is a block diagram of a power take-off housing;
FIG. 4 is a rotational view of the K-K cross-sectional view of FIG. 3;
FIG. 5 is a front view of the first bearing cap in this embodiment;
FIG. 6 is a right side view of FIG. 5;
FIG. 7 is a left side view of FIG. 5;
fig. 8 is a view of the mounting position when the center-to-center distance is Ra1 in this embodiment;
fig. 9 is a view of the mounting position when the center-to-center distance is adjusted to Ra2 in this embodiment;
fig. 10 is a view of the mounting position when the center-to-center distance is adjusted to Ra3 in this embodiment;
fig. 11 is a view of the mounting position when the center-to-center distance is adjusted to Ra4 in this embodiment;
the reference numerals are:
in FIG. 1, 101-duplex gear, 102-input shaft, 103-output shaft, 104-bearing, 105-first bearing cap, 106-second bearing cap, 107-power take-off housing, 108-slip gear;
in fig. 2 to 11, 201-double gear, 202-input shaft, 203-output shaft, 204-bearing, 205-first bearing cover, 2051-connecting hole, 2052-bearing mounting hole, 206-second bearing cover, 207-power take-off housing, 2071-input shaft hole, 2072-output shaft hole, 208-slip gear.
Detailed Description
The invention is further described below with reference to the accompanying drawings and specific examples.
Fig. 1 is described in the background art and will not be described here.
Referring to fig. 2, 3 and 4, the power take-off comprises a double gear 201, an input shaft 202, an output shaft 203, two bearings 204, a first bearing cap 205, a second bearing cap 206 and a power take-off housing 207.
The power take-off housing 207 is provided with an input shaft hole 2071 and an output shaft hole 2072 in parallel; an input shaft 202 is provided in the input shaft hole 2071; the two ends of the output shaft hole 2072 are provided with a first bearing cover 205 and a second bearing cover 206, and bearings 204 are arranged in the first bearing cover 205 and the second bearing cover 206; bearings 204 are supported at both ends of the output shaft 203. The output shaft hole 2072 in this application is larger than that of the existing power take-off housing of the same type. The input shaft 202 is provided with a duplex gear 201; the output shaft 203 is provided with a slip gear 208. When the power take-off works, one row of gears of the duplex gear 201 is meshed with a power take-off gear in the transmission, the sliding gear 208 slides and is meshed with a corresponding gear of the duplex gear 201, and power is transmitted to an output shaft 203 of the power take-off for power output.
Referring to fig. 5, 6 and 7, a bearing mounting hole 2052 for mounting the bearing 204 is provided in the first bearing cover 205; the first bearing caps 205 are uniformly provided with connection holes 2051 in the circumferential direction, and the number of the connection holes 2051 is at least three. In this embodiment, the number of the connection holes 2051 is four. The bearing mounting holes 2052 and the connection holes 2051 are eccentrically arranged in a distributed circle. In order to quickly identify the eccentric direction of the bearing caps, the assembly is guided, and eccentric indication arrows are arranged on the first bearing cap 205 and the second bearing cap 206.
The second bearing cap 206 is similar in structure to the first bearing cap 205, except that the second bearing cap 206 is a transparent cap. Also mounted in the second bearing cap 206 is a bearing 204, and in this embodiment, the bearing 204 is a tapered roller bearing.
In this embodiment, since the first bearing cover 205 and the second bearing cover 206 at two ends of the output shaft 203 of the power take-off are both eccentric structures, and the second bearing cover 206 is similar to the first bearing cover 205 in structure, the difference is that the first bearing cover 205 is a blank cap and the second bearing cover 206 is a transparent cover, so that the mounting angles of the first bearing cover 205 and the second bearing cover 206 and the power take-off housing 207 can be changed according to the number of the connection holes 2051, so that the eccentric indication arrows on the first bearing cover 205 and the second bearing cover 206 always point to the same direction on the power take-off housing, and thus, a plurality of groups of different center distances can be obtained from the axis positions of the output shaft 203 with different axial center distances of the input shaft 202.
The set values of the center distances between the input shaft 203 and the output shaft 203 of the power take-off device can be Ra1, ra2, ra3 and Ra4, and each set of center distances corresponds to a different set of duplex gears 201 and sliding gears 208.
Referring to fig. 8, when the first bearing cap 205 is assembled with the set value of the center distance between the output shaft 203 and the input shaft 202 of the power take-off being Ra1, the center distance between the output shaft 203 and the input shaft 202 can be ensured by simply pointing the eccentric indication arrow upward and adjusting the position of the first bearing cap 206 accordingly so that the arrow is also pointed upward.
Referring to fig. 9, when the set value of the center distance between the output shaft 203 and the input shaft 202 of the power take-off is Ra2, the rotation angles of the first bearing cover 205 and the second bearing cover 206 are adjusted, and the eccentric indication arrows on the two bearing covers are simultaneously directed to the left, so that the center distance between the output shaft 203 and the input shaft 202 of the power take-off is Ra2.
Referring to fig. 10, when the set value of the center distance between the output shaft 203 and the input shaft 202 of the power take-off is Ra3, the rotation angles of the first bearing cap 205 and the second bearing cap 206 are adjusted, and the eccentric indication arrows on the two bearing caps are simultaneously directed downward, so that the center distance between the output shaft 203 and the input shaft 202 of the power take-off is Ra3.
Referring to fig. 11, when the set value of the center distance between the output shaft 203 and the input shaft 202 of the power take-off is Ra4, the rotation angles of the first bearing cap 205 and the second bearing cap 206 are adjusted, and the eccentric indication arrows on the two bearing caps are simultaneously directed to the right, so that the center distance between the output shaft 203 and the input shaft 202 of the power take-off is Ra4.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the present invention and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present invention.
Claims (4)
1. The utility model provides an adjustable centre-to-centre distance power takeoff, includes duplex gear (201), input shaft (202), output shaft (203), two bearings (204), first bearing cap (205), second bearing cap (206), power takeoff casing (207) and slipping gear (208); the input shaft (202) is provided with a duplex gear (201); a sliding gear (208) is arranged on the output shaft (203); one row of gears in the sliding gear (208) and the duplex gear (201) are meshed; the method is characterized in that:
an input shaft hole (2071) and an output shaft hole (2072) are arranged on the power takeoff shell (207) in parallel; the input shaft (202) is arranged in the input shaft hole (2071); the two ends of the output shaft hole (2072) are provided with the first bearing cover (205) and the second bearing cover (206); the first bearing cover (205) and the second bearing cover (206) are internally provided with the bearings (204); the bearings (204) are supported at two ends of the output shaft (203);
a bearing mounting hole (2052) is formed in the first bearing cover (205); the first bearing cover (205) is provided with uniformly distributed connecting holes (2051) along the circumferential direction; the number of the connecting holes (2051) is at least three; the circle center of the bearing mounting hole (2052) and the circle center of the distribution circle of the connecting hole (2051) are eccentrically arranged; the first bearing cap (205) is a blank cap;
the second bearing cap (206) is similar in structure to the first bearing cap (205) except that the second bearing cap (206) is a transparent cap.
2. The adjustable center distance power takeoff of claim 1, wherein: eccentric indication arrows are arranged on the first bearing cover (205) and the second bearing cover (206).
3. The adjustable center distance power takeoff of claim 2, wherein: the bearing (204) is a tapered roller bearing.
4. A centre-to-centre spacing adjustable power take-off as claimed in claim 2 or 3, wherein: the number of the connecting holes (2051) is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811375955.XA CN109458449B (en) | 2018-11-19 | 2018-11-19 | Power takeoff with adjustable center distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811375955.XA CN109458449B (en) | 2018-11-19 | 2018-11-19 | Power takeoff with adjustable center distance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109458449A CN109458449A (en) | 2019-03-12 |
| CN109458449B true CN109458449B (en) | 2024-03-15 |
Family
ID=65610930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811375955.XA Active CN109458449B (en) | 2018-11-19 | 2018-11-19 | Power takeoff with adjustable center distance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109458449B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201218322Y (en) * | 2008-07-21 | 2009-04-08 | 陕西法士特齿轮有限责任公司 | Lubrication mechanism for gear box synchronization device and bearing |
| CN201218303Y (en) * | 2008-04-03 | 2009-04-08 | 王巧扣 | Power takeoff device with substitute bearing external roller path input gear |
| CN101893064A (en) * | 2010-07-16 | 2010-11-24 | 杨天博 | Reducer capable of regulating return difference |
| CN102483136A (en) * | 2009-06-04 | 2012-05-30 | 约翰·诺伊施蒂夫特 | Method for modifying a transfer case for a plurality of outputs |
| CN209414568U (en) * | 2018-11-19 | 2019-09-20 | 陕西法士特汽车传动集团有限责任公司 | A kind of adjustable center distance power takeoff |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9657813B2 (en) * | 2014-06-06 | 2017-05-23 | Delbert Tesar | Modified parallel eccentric rotary actuator |
-
2018
- 2018-11-19 CN CN201811375955.XA patent/CN109458449B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201218303Y (en) * | 2008-04-03 | 2009-04-08 | 王巧扣 | Power takeoff device with substitute bearing external roller path input gear |
| CN201218322Y (en) * | 2008-07-21 | 2009-04-08 | 陕西法士特齿轮有限责任公司 | Lubrication mechanism for gear box synchronization device and bearing |
| CN102483136A (en) * | 2009-06-04 | 2012-05-30 | 约翰·诺伊施蒂夫特 | Method for modifying a transfer case for a plurality of outputs |
| CN101893064A (en) * | 2010-07-16 | 2010-11-24 | 杨天博 | Reducer capable of regulating return difference |
| CN209414568U (en) * | 2018-11-19 | 2019-09-20 | 陕西法士特汽车传动集团有限责任公司 | A kind of adjustable center distance power takeoff |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109458449A (en) | 2019-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201794996U (en) | Gear train and differential mechanism | |
| CN204610709U (en) | A kind of high rigidity precision speed reduction device | |
| CN104455226A (en) | Three cycloidal gear type RV speed reducer | |
| CN112555357A (en) | K-H-V type gap-adjustable small tooth difference precision transmission device | |
| CN109458449B (en) | Power takeoff with adjustable center distance | |
| CN203939933U (en) | The accurate 2K-V type of quill shaft speed reducer | |
| CN107061637B (en) | Planet transmission system with planet wheel double-row parallel uniform distribution shunting structure | |
| CN113483032A (en) | Bearing clearance adjusting mechanism for universal joint cross and assembling method thereof | |
| CN105570399A (en) | WW-type planetary gear train-based pressure stepless speed change device | |
| CN104400409A (en) | Automatic rotary indexing mechanism of tightening machine | |
| CN209414568U (en) | A kind of adjustable center distance power takeoff | |
| CN106979216A (en) | Decelerator crank axle and decelerator | |
| CN210318396U (en) | Friction transmission planetary speed increasing device suitable for high input rotating speed | |
| CN105402321A (en) | Eccentric double-tooth-difference speed-changing device | |
| CN108001216B (en) | Electric automobile power assembly based on continuously variable transmission | |
| CN111601984B (en) | Double-inner-gear-ring variable linear speed planetary-row balanced speed reducer | |
| EP3608558B1 (en) | Cycloidal differential | |
| US20190346021A1 (en) | Speed reducer | |
| CN207161695U (en) | A kind of third-level planetary support | |
| CN203051685U (en) | Variable gear | |
| CN106838029B (en) | Reverse coupling | |
| CN205423732U (en) | Contrary ring type decelerator who ends function of utensil | |
| CN219796003U (en) | Planetary wheel type differential mechanism, power transmission system and vehicle | |
| CN204805442U (en) | Variable speed planet axle transmission system | |
| CN220488134U (en) | Bearing assembly structure and cam intermittent divider |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |