CN202971780U - Diesel engine and belt tension pulley thereof - Google Patents
Diesel engine and belt tension pulley thereof Download PDFInfo
- Publication number
- CN202971780U CN202971780U CN 201220704774 CN201220704774U CN202971780U CN 202971780 U CN202971780 U CN 202971780U CN 201220704774 CN201220704774 CN 201220704774 CN 201220704774 U CN201220704774 U CN 201220704774U CN 202971780 U CN202971780 U CN 202971780U
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- tension pulley
- diesel engine
- belt
- support plate
- blanking cover
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Abstract
The utility model discloses a belt tension pulley, which comprises a support plate and a belt pulley which is arranged on one end of the support plate, wherein a support body is arranged on the other end of the support plate, and the belt pulley and the support body are arranged on the same side of the support plate, and are arranged toward the direction far away from an engine body of a diesel engine. The belt tension pulley is a synthetic tension wheel, and is arranged back on to the engine body, the belt tension pulley can not rub with the belt during the mounting process, thereby prolonging service life of the belt. The belt tension pulley is arranged back on to the engine body, and can not interfere with the engine body during the mounting process, thereby being extremely convenient during the mounting process. The utility model further provides a diesel engine with the belt tension pulley.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly a kind of tension pulley for diesel engine.The utility model also relates to a kind of diesel engine that comprises above-mentioned tension pulley.
Background technique
The band transmission is to rely on tensioner and friction to transmit motion and power, it have simple in structure, stable drive, easy to maintenance, with low cost, overload protection is arranged and the advantage such as transmission centre distance is larger and being used widely in machinery.To have stable transmitting torque function in order satisfying with transmission within the long operating time, except being applied certain initial pretightening force with transmission, also must to increase belt tensioner.Usually the tensioner method that adopts has regular tensioner and automatic tension.In automatic tension, method commonly used has: gravity type, elastic force type, hydraulic type and the several different methods such as intellectual, the occasion that the whole bag of tricks uses is not identical yet.Consider the restrictions such as installing space on diesel engine, the tensioner method that generally adopts on diesel engine at present is the elastic force type tensioning.
Traditional Idle wheel comprises incorgruous Idle wheel and Idle wheel in the same way, and all there is defective separately in the Idle wheel of these two kinds of installation forms.
Although incorgruous Idle wheel can facilitate the engine assembly belt, the stressed arm of force of this kind Idle wheel is long, and the load that acts on central shaft is excessive, eccentric wear easily occurs in central axle sleeve and axle sleeve, cause Idle wheel early failue, therefore, the use of Idle wheel is more in the same way at present.
But, although the stressed arm of force of Idle wheel is shorter in the same way, the attachment face of Idle wheel is towards being mounted body in the same way, when belt contact excessive (〉=130 degree) or belt need to be walked around the arm center, because needs are put Wrench, the installation of dynamo belt is comparatively required great effort; Simultaneously, the pin root evagination of this Idle wheel is easy to interfere with body, and is relatively poor with the coplanarity of train, further increased installation difficulty; Be connected by optical axis between the blanking cover of traditional Idle wheel and connecting body, damping between the two is too small, causes the tensioner arm swinging excessive; In addition,
The blanking cover of tradition Idle wheel is connected with central axle sleeve by endoporus, entirely connects by revolving to be riveting, and can't regulate automatic tensioner damping size, and whole discontinuity equalization easily causes local fatigue ruption, affects the working life of Idle wheel.
Therefore, how to avoid installation pin and the body of Idle wheel to interfere, improve the coplanarity of itself and train, simplify the installation process of Idle wheel and body, need the problem of solution with regard to becoming those skilled in the art badly.
The model utility content
The purpose of this utility model is to provide a kind of band transmission Idle wheel for diesel engine, this band transmission Idle wheel tensioning in the same way, and install back to body, thereby avoided rubbing in belt in installation process, improved the working life of belt, and enlarged the installing space of belt, make the belt disassembling process more for convenience.Another purpose of the present utility model is to provide a kind of above-mentioned diesel engine with the transmission Idle wheel that comprises.
For solving the problems of the technologies described above, the utility model provides a kind of tension pulley for diesel engine, comprise support plate and the belt pulley that is arranged on support plate one end, the other end of described support plate is equipped with support body, described belt pulley and described support body are positioned at the same side of described support plate, and all install towards the direction away from the body of described diesel engine.
Preferably, in described support body, central axle sleeve is installed, described central axle sleeve is equipped with panel away from an end of described body, and described support plate is installed on described body by pin.
Preferably, described central axle sleeve offers outside thread, offers the internal thread with described external thread spiro fastening on described blanking cover.
Preferably, the end face of described blanking cover is provided with the plane of inclination.
Preferably, described plane of inclination circumferentially arranges a week along described blanking cover end face.
The utility model also provides a kind of diesel engine, comprises belt and is used for straining the tension pulley of described belt, and described tension pulley is tension pulley as above.
Further, the blanking cover of the described tension pulley body of described diesel engine dorsad.
Tension pulley provided by the utility model comprises support plate and is arranged on the belt pulley of support plate one end, the other end of this support plate is equipped with support body, belt pulley and support body are positioned at the same side of support plate, and all install towards the direction away from the body of diesel engine, also namely this tension pulley is Idle wheel in the same way, and body is installed dorsad; Like this, Idle wheel can not rub with belt in the process of installing, thereby improves the working life of belt; And, towards the installation dorsad of body, can not interfere with body in installation process, thereby make the belt disassembling process more for convenience.
In a kind of embodiment, tension pulley provided by the utility model, its central axle sleeve offers outside thread, offers the internal thread with external thread spiro fastening on blanking cover, and central axle sleeve is fixedly connected with the mode that blanking cover is threaded connection; Like this, the distance of central axle sleeve and blanking cover end face can be regulated by the length of action of screw thread, can regulate according to use condition the size of Idle wheel damping moment of torsion, thereby be conducive to adjust automatic tensioner damping torque, satisfy the requirement of design damping ratio, reduce because of damping little, the adverse effect that automatic tensioner arm swinging is large; Simultaneously also can avoid answering damping too large the risk of aggravation belt wearing and tearing.
In another kind of embodiment, tension pulley provided by the utility model, the end face of its blanking cover is provided with the plane of inclination, so that the power that blanking cover acts on wearing plate is evenly distributed on the dish spring.
Except above-mentioned tension pulley, the utility model also provides a kind of diesel engine that comprises above-mentioned tension pulley, and wherein, the blanking cover of tension pulley is the body of diesel engine dorsad, to facilitate the dismounting of tension pulley.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of tension pulley provided by the utility model;
Fig. 2 is the structural representation of a kind of embodiment of central axle sleeve provided by the utility model;
Fig. 3 is the structural representation of a kind of embodiment of blanking cover provided by the utility model.
Embodiment
Core of the present utility model is to provide a kind of band transmission Idle wheel for diesel engine, this band transmission Idle wheel tensioning in the same way, and install back to body, thereby avoided rubbing in belt in installation process, improved the working life of belt, and enlarged the installing space of belt, make the belt disassembling process more for convenience.Another core of the present utility model is to provide a kind of above-mentioned diesel engine with the transmission Idle wheel that comprises.
In order to make those skilled in the art person understand better the utility model scheme, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of embodiment of tension pulley provided by the utility model.
This tension pulley comprises support plate and is arranged on the belt pulley of support plate one end, the other end of support plate 2 is provided with central axle sleeve 5, be provided with the support body 1 that covers this central axle sleeve 5 in central axle sleeve 5 peripheries, central axle sleeve 5 is fixed in support body 1, described belt pulley and described support body are positioned at the same side of described support plate, and all install towards the direction away from the body of described diesel engine, also namely this tension pulley is Idle wheel in the same way, and body installation dorsad; Like this, Idle wheel can not rub with belt in the process of installing, thereby improves the working life of belt; And, towards the installation dorsad of body, can not interfere with body in installation process, thereby make the belt disassembling process more for convenience.
Can be set with lasso 8 on above-mentioned support body 1, be worn to prevent support body 1, extend the working life of support body 1; Can be detachable between support body 1 and lasso 8 be connected, after lasso 8 wearing and tearing, can only change lasso 8, thereby simplify the process of device maintenance, the maintenance cost of having saved equipment like this.
The material of above-mentioned lasso 8 can be various high-abrasive materials, such as rubber etc., can certainly be various metallic material, as long as can play the effect of protection support body 1.
Be provided with spring 3 in above-mentioned support body 1, these spring 3 one ends lean against on support plate 2, and the other end withstands on lasso 8, and the outer spring pad plate 4 that is provided with of spring 3 in order to increase stress surface, is realized the transmission than high-torque, and improved stressed uniformity, increases reliability.
Be fixed with dish spring 7 between antifriction plate 9 and support plate 2, in order to increase damping, increase the frictional force between antifriction plate 9 and blanking cover 10; Antifriction plate 9 is embedded in the groove of support plate 2, and the left side is fixed with blanking cover 10 and bolt.
Deep groove ball bearing 16 is installed in the hole of belt pulley 12, the two ends in hole are fixing with circlip 15, be equipped with on belt pulley 12 dustproof sprue 11 is installed on dust cover 13, support plate 2, enter deep groove ball bearing 16 to prevent dust, prevent from causing the wearing and tearing of deep groove ball bearing 16.
Left end (left side as shown in the drawing) cover at central axle sleeve 5 has axle sleeve 6, support plate 2 are set in outside axle sleeve 6 and can swing with respect to axle sleeve 6, can only change axle sleeve 6 after wearing and tearing, and need not change central axle sleeve 5.
The outside of antifriction plate 9 is equipped with blanking cover 10, and the form of blanking cover 10 can have multiple, for example can be for plane form, also can be arranged to the form of center protrusion.In addition, the shape of cross section of blanking cover 10 also can be by multiple, and is circular or square etc. such as thinking.
The cup depth of above-mentioned depressed part can be 1 millimeter, in order to namely can guarantee usage requirement, can realize preferably the coplanarity requirement again.
Please refer to Fig. 2 and Fig. 3, Fig. 2 is the structural representation of a kind of embodiment of central axle sleeve provided by the utility model; Fig. 3 is the structural representation of a kind of embodiment of blanking cover provided by the utility model.
On central axle sleeve 5, the externally threaded length that arranges should be according to actual use condition, and when the damping torque range of regulating when needs was larger, the externally threaded length that arranges can suitably increase, to increase the length of action of central axle sleeve 5 and blanking cover.
Above-mentioned central axle sleeve 5 also is not limited to the threaded form that arranges, and it also can be optical axis, and is corresponding, also screw thread can be set accordingly on blanking cover, and central axle sleeve 5 is connected with blanking cover and is connected by mounting type conventional in related domain, such as the bearing pin connection etc.
Tension pulley provided by the utility model, the end face of its blanking cover 10 is provided with plane of inclination 102, so that the power that blanking cover 10 acts on wearing plate is evenly distributed on the dish spring.
Plane of inclination 102 can along blanking cover 10 end faces a week circumferentially is set, also can piecemeal be evenly arranged in blanking cover 10 circumferentially.
The inclined degree of above-mentioned plane of inclination 102 should determine according to actual use condition, such as thinking 15 ° or 10 ° etc.Except above-mentioned tension pulley, the utility model also provides a kind of diesel engine that comprises above-mentioned tension pulley, and wherein, the blanking cover of tension pulley is the body of diesel engine dorsad, to facilitate the dismounting of tension pulley.Other each several part structures of this diesel engine please refer to prior art, do not repeat them here.
Above a kind of diesel engine provided by the utility model and tension pulley thereof are described in detail.Used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (7)
1. tension pulley that is used for diesel engine, comprise support plate and the belt pulley that is arranged on support plate one end, the other end of described support plate is equipped with support body, it is characterized in that, described belt pulley and described support body are positioned at the same side of described support plate, and all install towards the direction away from the body of described diesel engine.
2. the tension pulley for diesel engine according to claim 1, is characterized in that, in described support body, central axle sleeve is installed, and described central axle sleeve is equipped with panel away from an end of described body, and described support plate is installed on described body by pin.
3. the tension pulley for diesel engine according to claim 2, is characterized in that, described central axle sleeve offers outside thread, offers the internal thread with described external thread spiro fastening on described blanking cover.
4. the tension pulley for diesel engine according to claim 3, is characterized in that, the end face of described blanking cover is provided with the plane of inclination.
5. the tension pulley for diesel engine according to claim 4, is characterized in that, described plane of inclination circumferentially arranges a week along described blanking cover end face.
6. a diesel engine, comprise belt and for the tension pulley of straining described belt, it is characterized in that, described tension pulley is tension pulley as described in claim 1 to 5 any one.
7. diesel engine according to claim 6, is characterized in that, the blanking cover of described tension pulley is the body of described diesel engine dorsad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704774 CN202971780U (en) | 2012-12-18 | 2012-12-18 | Diesel engine and belt tension pulley thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704774 CN202971780U (en) | 2012-12-18 | 2012-12-18 | Diesel engine and belt tension pulley thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971780U true CN202971780U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220704774 Expired - Lifetime CN202971780U (en) | 2012-12-18 | 2012-12-18 | Diesel engine and belt tension pulley thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN202971780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016658A (en) * | 2012-12-18 | 2013-04-03 | 潍柴动力股份有限公司 | Diesel engine and belt tightening pulley thereof |
-
2012
- 2012-12-18 CN CN 201220704774 patent/CN202971780U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016658A (en) * | 2012-12-18 | 2013-04-03 | 潍柴动力股份有限公司 | Diesel engine and belt tightening pulley thereof |
| CN103016658B (en) * | 2012-12-18 | 2016-08-10 | 潍柴动力股份有限公司 | A kind of Diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |