CN201322058Y - Power take-off device - Google Patents
Power take-off device Download PDFInfo
- Publication number
- CN201322058Y CN201322058Y CNU2008201289131U CN200820128913U CN201322058Y CN 201322058 Y CN201322058 Y CN 201322058Y CN U2008201289131 U CNU2008201289131 U CN U2008201289131U CN 200820128913 U CN200820128913 U CN 200820128913U CN 201322058 Y CN201322058 Y CN 201322058Y
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- power taking
- power
- taking parts
- mounting flange
- power take
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Abstract
The utility model discloses a power take-off device, which comprises an elastic coupling, a first power take-off component and at least one concatenation power take-off component, wherein the elastic coupling is used be fixedly connected with the front end surface of a flywheel of an engine; the input terminal of a transmission through shaft of the first power take-off component is coaxially and fixedly connected with the elastic coupling; and the input terminal of a transmission shaft of the concatenation power take-off component is coaxially and fixedly connected with the output terminal of the transmission through shaft of the first power take-off component, so that a plurality of power take-off components can take power conveniently and directly from the flywheel of the engine. The power take-off component of the utility model is connected with the flywheel of the engine through the elastic coupling so as to realize the power take-off of full power; when larger torque is required to be output, a larger discharge pump can be installed without the limitation of installation space; in addition, the torsional vibration of the transmission shafting between the flywheel of the engine and the power take-off component can be weakened by the elastic coupling, so that the utility model has the functions of compensation for the relative displacement of the two shafts, buffer and vibration reduction and the like, and can reduce the operation noise of the power take-off device.
Description
Technical field
The utility model relates to the mechanical transmissioning technology field, is specifically related to a kind of power takeoff.
Background technique
Existing engine torque extraction mode has dual mode usually: anterior power output form of motor and motor side power output form, however this power taking form of two kinds all exists deficiency.
As shown in Figure 1, the figure shows the anterior power output form of motor, utilize the belt outputting power that is connected with the front end crank pulley of motor.There are two difficult points in this kind power taking form when conceptual design, the one, the difficulty that the pulley diameters that the intrinsic characteristics of belt transmission itself are brought is determined is bigger, and at first, the too small band bending distortion of pulley diameters is excessive, bear excessive compression and tensile stress, crackle appears in the too early belt surface that makes; Secondly, pulley diameters is crossed conference increases its peripheral velocity, causes with suffered centrifugal force to increase, and has been equivalent to reduce the tension force of band, seriously causes skidding or causing roll of band, makes band break away from the belt wheel groove, can make troubles to spatial arrangement again simultaneously.Problems such as another is that the volume of belt wheel and band will be bigger when needs are exported more high pulling torque, difficulty is installed takies than large space thereby bring, and centrifugal force is bigger also can cause bigger vibration simultaneously.
As shown in Figure 2, the figure shows motor side power output form, from as can be known to the analysis of the structural type of motor, the output of this kind power, generally need a series of gear train to be meshing with each other and reach the effect of transmitting torque, rotating speed through output gear after transmitting can increase, and moment of torsion just descends thereupon.Therefore, this power taking mode can not satisfy the transfer function of high pulling torque.In addition, because the side space is limited, can't install than large discharge pump.
Particularly, for crane, except the required power of vehicle driving, also need other power output, for example, the power that the crane supporting leg is flexible, the power of the stirrer of transit mixer etc., need satisfy the needs and the reliable transmission power taking mode of the output of many power, with the Security of satisfying engineering machinery and the requirement of reliability.
To sum up, by analysis to existing power taking mode and hydraulic pressure installation as installed position, existing engine torque extraction form all can not satisfy the power taking requirement of hoister in large tonnage chassis hydraulic-pressure pump group, demand urgently looking for another way and design a kind of many power output power taking modes that are applicable to crane, when obtaining bigger transmitting torque, satisfy complete machine overall space designing requirement.
The model utility content
At above-mentioned defective, the technical problem that the utility model solves is, a kind of power takeoff is provided.
The power takeoff that the utility model provides comprises elasticity shaft joint, the first power taking parts and at least one serial connection power taking parts; Wherein, described elasticity shaft joint is used for fixedlying connected with the front-end face of engine flywheel; The input end of the transmission axis of the described first power taking parts and coaxial the fixedlying connected of described elasticity shaft joint; The transmission shaft input end of described at least one serial connection power taking parts and coaxial the fixedlying connected of transmission axis output terminal of the described first power taking parts are so that a plurality of power taking parts are from the direct power taking of engine flywheel.
Preferably, the described first power taking parts are specially the shaft type axial piston pump; Described at least one serial connection power taking parts are specially a gear pump.
Preferably, also comprise universal drive shaft, this universal drive shaft is arranged between described elasticity shaft joint and the described first power taking parts, fixedlys connected with the transmission axis input end of the described elasticity shaft joint and the first power taking parts respectively in the two end part of this universal drive shaft.
Preferably, comprise also and the coaxial spline housing of fixedlying connected of described universal drive shaft that the axis input end of described shaft type axial piston pump is connected with described spline housing spline.
Preferably, also comprise the support that is fixedly installed on the car body, be used to support the described first power taking parts and/or described at least one serial connection power taking parts.
Preferably, described elasticity shaft joint comprises first mounting flange, elastic shock attenuation body assembly and second mounting flange, the three is fixedly connected sequentially, wherein, described first mounting flange is used for fixedlying connected with the front-end face of engine flywheel, and described second mounting flange is used for fixedlying connected with the first power taking element coaxial.
Preferably, described elastic shock attenuation body assembly comprises from the inside to the outside balancer weight, equilibrium block and the elastic shock attenuation body of nested setting successively; Wherein, described balancer weight is fixedlyed connected with described first mounting flange, and described equilibrium block is fixedlyed connected with described elastic shock attenuation body, and described elastic shock attenuation body is fixedly installed between described first mounting flange and second mounting flange.
Preferably, be provided with lining between described balancer weight and the equilibrium block.
The power takeoff that the utility model provides utilizes the elasticity shaft joint to realize between a plurality of power taking parts and the engine flywheel transmission of motion and power, that is, between power taking parts and the engine flywheel for often being connected with a joggle.The utility model is anterior power output form, compares with the anterior power output form of available engine, and the power taking parts of technical solutions of the utility model are connected with engine flywheel by the elasticity shaft joint, have realized the full power power taking; In needs output during, not limited by installing space than the installation of large discharge pump than high pulling torque.In addition, can the decay torsional vibration of drive line between engine flywheel and the power taking parts of elasticity shaft joint has functions such as compensation diaxon relative displacement and buffer shock-absorbing, and can reduce the operating noise of power takeoff.
Compare with available engine side transportation output form, do not have gear drive between power taking parts of this programme and the motor, therefore, can obtain bigger output torque; Simultaneously, avoided the problem of the limited existence in side space.
In the preferred version of the present utility model, between described elasticity shaft joint and the described first power taking parts, be provided with universal drive shaft, utilize the performance-adjustable of universal drive shaft, can further regulate axial angle and the offset distance that produces because of foozle.
In another preferred version of the present utility model, have additional the support that is fixedly installed on the car body, be used to support the power taking parts improving the work rigidity of whole power takeoff, overcoming the moment of flexure that weight was produced of whole device, and then guarantee the work of power taking parts steadily, reliability.
The power takeoff that the utility model provides is specially adapted to hoister in large tonnage.
Description of drawings
Fig. 1 is the schematic representation of the anterior power output form of available engine;
Fig. 2 is the schematic representation of available engine side power output form;
Fig. 3 is the explosive view of power takeoff that the utility model provides;
Fig. 4 is the overall structure sectional view of the shaft joint of elasticity described in the embodiment;
Fig. 5 is the explosive view of the shaft joint of elasticity described in the embodiment.
Among Fig. 3 to Fig. 5:
Embodiment
Core of the present utility model is to utilize the elasticity shaft joint to realize that a plurality of power taking parts are connected with engine flywheel, thus the power of reasonable distribution motor, and can realize the transmission of power of high speed high pulling torque.
Specify present embodiment below in conjunction with Figure of description.
Referring to Fig. 3, this figure is the explosive view of power takeoff that the utility model provides.
As shown in Figure 3, the power takeoff that provides of the utility model comprises elasticity shaft joint 1, the first power taking parts 2 and serial connection power taking parts 3.
Wherein, described elasticity shaft joint 1 is used for fixedlying connected with the front-end face of engine flywheel; The elasticity shaft joint 1 of transmitting movement and power is mainly used in the torsional vibration of drive line between decay engine flywheel and the power taking parts, has functions such as compensation diaxon relative displacement and buffer shock-absorbing, and can reduce the operating noise of power takeoff.
The input end of the transmission axis of the described first power taking parts 2 and described elasticity shaft joint 1 coaxial fixedlying connected; Shown in the figure, the described first power taking parts 2 are specially the shaft type axial piston pump, as the dynamical element of radiation system.
Coaxial the fixedlying connected of transmission axis output terminal of the transmission shaft input end of described serial connection power taking parts 3 and the described first power taking parts 2 is so that a plurality of power taking parts are from the direct power taking of engine flywheel.Shown in the figure, described serial connection power taking parts 3 are specially a gear pump, as the dynamical element of steering system.Need to prove that described serial connection power taking parts 3 can be two or more, to satisfy the needs of actual a plurality of power outputs, each is connected in series the parameter of power taking parts 3 and selects and need be complementary with motor, and its transmission shaft is connected in series successively and gets final product.
Further, as shown in Figure 3, present embodiment also comprises universal drive shaft 4, this universal drive shaft 4 is arranged between described elasticity shaft joint 1 and the described first power taking parts 2, fixedlys connected with the transmission axis input end of the described elasticity shaft joint 1 and the first power taking parts 2 respectively in the two end part of this universal drive shaft 4.The major function of described universal drive shaft 4 is transfer motion power and moment of torsion, in addition, the effect of this transmission shaft is set herein, can also utilize the performance-adjustable of universal drive shaft 4, and this transmission shaft can be regulated axial angle and the offset distance that produces because of foozle.Because the purpose that is provided with of this universal drive shaft 4 is not in order to realize the transferring power and the moment of torsion of long distance, therefore, the length of this universal drive shaft 4 is relatively short, and need not increase intermediate support.
Particularly, based on overhanging formula spline heads such as shaft type axial piston pumps, the utility model also comprises spline housing 5, this spline housing 5 and described universal drive shaft 4 coaxial fixedlying connected, and the spline head of described shaft type axial piston pump axis input end inserts in the described spline housing 3, realizes that spline connects.
In fact; based on the different structure form of transmission axis input end, such as, internal spline, flat key etc.; can design and select for use corresponding link to finish fixedlying connected of the first power taking parts 2 and universal drive shaft 4, use needs all in the protection domain of this patent as long as satisfy.
Work under steady, normal state for the assurance hydraulic-pressure pump, the utility model also comprises the support 6 that is fixedly installed on the car body, is used to support the power taking parts to improve the work rigidity of whole power takeoff.Be understandable that, according to the as installed space, this support 6 can be used for matching with the described first power taking parts 2, also can match with described serial connection power taking parts 3, certain structural design for a plurality of serial connection power taking parts, described support 6 need support the first power taking parts 2 and serial connection power taking parts 3 simultaneously, to overcome the moment of flexure that whole installation weight is produced.
As everyone knows, in part processing and assembly process, all can there be machining error or assembly error inevitably.In the working procedure, the elasticity shaft joint 1 in this programme can also bear processing and the unnecessary radial force that produced of assembly error; In addition, can also absorb the unnecessary vibration that produces in engine crankshaft startup and the stopped process.This radial force and unnecessary vibration can directly influence the stationarity and the working life thereof of its work for the life-span of the first power taking parts 2 and serial connection power taking parts 3.Therefore, described elasticity shaft joint 1 has also played the effect that protection power taking parts prolong its working life in compensation diaxon relative displacement and buffer shock-absorbing.
For describing elasticity shaft joint 1 in detail, see also Fig. 4 and Fig. 5, wherein, Fig. 4 is the overall structure sectional view of described elasticity shaft joint; Fig. 5 is the explosive view of described elasticity shaft joint.
As shown in the figure, described elasticity shaft joint comprises first mounting flange 11, elastic shock attenuation body assembly 12 and second mounting flange 13, the three is fixedly connected sequentially, wherein, described first mounting flange 11 is used for fixedlying connected with the front-end face of engine flywheel, and described second mounting flange 13 is used for and the first power taking parts, 2 coaxial fixedlying connected.
Particularly, as shown in Figure 4, described elastic shock attenuation body assembly 12 mainly comprises from the inside to the outside balancer weight 121, equilibrium block 122 and the elastic shock attenuation body 123 of nested setting successively.
Wherein, described balancer weight 121 is fixedlyed connected with described first mounting flange 11, to improve the rigidity of power takeoff, the rotary inertia that each power taking parts of balance are produced; Described equilibrium block 122 is fixedlyed connected with described elastic shock attenuation body 123, with the outside rotary inertia that produces of this device of balance, guarantees that elastic coupling flexible coupling evenly, stably rotate; Described elastic shock attenuation body 123 is fixedly installed between described first mounting flange 11 and second mounting flange 13, to realize the torsional vibration of decay drive line, the function of absorbing vibration and impact.
In working order, owing to can relatively rotate between balancer weight 121 and the equilibrium block 122, for this reason, between described balancer weight 121 and equilibrium block 122, be provided with lining 124, to avoid relatively rotating between balancer weight 121 and the equilibrium block 122 interference of generation.
Particularly, as shown in Figure 4, the engineering rubber that satisfies the shell-like of using needs is adopted at the middle part of elastic shock attenuation body 123, and its both sides are fixedly connected with rigid flange.The outer rim of aforementioned first mounting flange 11 is fixedlyed connected with the rigid flange outer rim of the elastic shock attenuation body 123 of sides adjacent, and the outer rim of aforementioned second mounting flange 13 is fixedlyed connected with the rigid flange inner edge of the elastic shock attenuation body 123 of sides adjacent.
What specify is that this paper is not described in detail the physical and mechanical properties parameter of described elastic shock attenuation body 123 used engineering rubber.Selected according to actual needs, those skilled in the art can carry out suitable selection fully based on prior art.
Consider from the angle of optimal design, except that the requirement of satisfying product function, also should in design, take into full account its manufacturability, such as, assembly process process.For this reason, the described elasticity shaft joint 1 of present embodiment also comprises pad 14 and end cap 15, to improve further assembly process process.
During assembling, at first, balancer weight 121, lining 124 and equilibrium block 122 are sleeved on together successively, adopt bolt with first mounting flange 11, balancer weight 121 and, pad 14 and end cap 15 axial restraints are one, wherein, the outside of the described balancer weight 121 of pad 14 suits is to adjust the axial position of equilibrium block 122; Then, elastic shock attenuation body assembly 12 is sleeved on the outside of described equilibrium block 122, adopts bolt that the outer rim of first mounting flange 11 is fixedlyed connected with the rigid flange of the elastic shock attenuation body assembly 12 of sides adjacent; At last, adopt bolt that the outer rim of second mounting flange 13 is fixedlyed connected with the rigid flange inner edge of sides adjacent elastic shock attenuation body assembly 12.So far, finish the assembling of this elasticity shaft joint 1.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1, power takeoff is characterized in that, comprising:
The elasticity shaft joint is used for fixedlying connected with the front-end face of engine flywheel;
The first power taking parts, the input end of its transmission axis and coaxial the fixedlying connected of described elasticity shaft joint; With
At least one serial connection power taking parts, coaxial the fixedlying connected of transmission axis output terminal of the input end of its transmission shaft and the described first power taking parts is so that a plurality of power taking parts are from the direct power taking of engine flywheel.
2, power takeoff according to claim 1 is characterized in that, the described first power taking parts are specially the shaft type axial piston pump; Described at least one serial connection power taking parts are specially a gear pump.
3, power takeoff according to claim 2 is characterized in that, also comprises:
Universal drive shaft is arranged between described elasticity shaft joint and the described first power taking parts, fixedlys connected with the transmission axis input end of the described elasticity shaft joint and the first power taking parts respectively in the two end part of this universal drive shaft.
4, power takeoff according to claim 3 is characterized in that, also comprises:
Spline housing is fixedlyed connected with described universal drive shaft is coaxial; And
The axis input end of described shaft type axial piston pump is connected with described spline housing spline.
5, power takeoff according to claim 1 is characterized in that, also comprises:
Support is fixedly installed on the car body, is used to support the described first power taking parts and/or described at least one serial connection power taking parts.
6, power takeoff according to claim 1, it is characterized in that, described elasticity shaft joint comprises first mounting flange, elastic shock attenuation body assembly and second mounting flange, the three is fixedly connected sequentially, wherein, described first mounting flange is used for fixedlying connected with the front-end face of engine flywheel, and described second mounting flange is used for fixedlying connected with the first power taking element coaxial.
7, power takeoff according to claim 6 is characterized in that, described elastic shock attenuation body assembly comprises from the inside to the outside balancer weight, equilibrium block and the elastic shock attenuation body of nested setting successively; Wherein, described balancer weight is fixedlyed connected with described first mounting flange, and described equilibrium block is fixedlyed connected with described elastic shock attenuation body, and described elastic shock attenuation body is fixedly installed between described first mounting flange and second mounting flange.
8, power takeoff according to claim 7 is characterized in that, is provided with lining between described balancer weight and the equilibrium block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201289131U CN201322058Y (en) | 2008-12-09 | 2008-12-09 | Power take-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201289131U CN201322058Y (en) | 2008-12-09 | 2008-12-09 | Power take-off device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201322058Y true CN201322058Y (en) | 2009-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201289131U Expired - Fee Related CN201322058Y (en) | 2008-12-09 | 2008-12-09 | Power take-off device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201322058Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529718A (en) * | 2012-03-06 | 2012-07-04 | 威海西立电子有限公司 | Novel power taking device of internal-combustion engine |
| CN102806833A (en) * | 2011-06-02 | 2012-12-05 | 解志磊 | Power unit of new-energy coach |
| CN108952955A (en) * | 2018-08-29 | 2018-12-07 | 山东迈克拉克工程机械有限公司 | A kind of excavator engine power output device |
| CN109499417A (en) * | 2018-12-05 | 2019-03-22 | 飞翼股份有限公司 | A kind of crude tailings Paste mixer drive mechanism |
-
2008
- 2008-12-09 CN CNU2008201289131U patent/CN201322058Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806833A (en) * | 2011-06-02 | 2012-12-05 | 解志磊 | Power unit of new-energy coach |
| CN102529718A (en) * | 2012-03-06 | 2012-07-04 | 威海西立电子有限公司 | Novel power taking device of internal-combustion engine |
| CN102529718B (en) * | 2012-03-06 | 2014-12-10 | 威海西立电子有限公司 | Novel power taking device of internal-combustion engine |
| CN108952955A (en) * | 2018-08-29 | 2018-12-07 | 山东迈克拉克工程机械有限公司 | A kind of excavator engine power output device |
| CN109499417A (en) * | 2018-12-05 | 2019-03-22 | 飞翼股份有限公司 | A kind of crude tailings Paste mixer drive mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20171209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |