CN202646648U - Transfer case and engineering machinery - Google Patents

Transfer case and engineering machinery Download PDF

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Publication number
CN202646648U
CN202646648U CN 201220271797 CN201220271797U CN202646648U CN 202646648 U CN202646648 U CN 202646648U CN 201220271797 CN201220271797 CN 201220271797 CN 201220271797 U CN201220271797 U CN 201220271797U CN 202646648 U CN202646648 U CN 202646648U
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CN
China
Prior art keywords
oil
transfer case
oily
oil guide
guide slot
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
Application number
CN 201220271797
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Chinese (zh)
Inventor
梁颂斌
汤志武
况柏文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sany Heavy Industry Co Ltd
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Sany Heavy Industry Co Ltd
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Filing date
Publication date
Application filed by Sany Heavy Industry Co Ltd filed Critical Sany Heavy Industry Co Ltd
Priority to CN 201220271797 priority Critical patent/CN202646648U/en
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Publication of CN202646648U publication Critical patent/CN202646648U/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/042Guidance of lubricant
    • F16H57/0421Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
    • F16H57/0424Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/042Guidance of lubricant
    • F16H57/0421Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
    • F16H57/0426Means for guiding lubricant into an axial channel of a shaft
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/042Guidance of lubricant
    • F16H57/043Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/0467Elements of gearings to be lubricated, cooled or heated
    • F16H57/0469Bearings or seals
    • F16H57/0471Bearing

Abstract

The utility model discloses a transfer case and engineering machinery. The transfer case comprises a case body, a gear shaft and a bearing, an internal spline is arranged on the inner wall of a shaft hole of the gear shaft, an oil guide hole is mounted on the case body, the transfer case further comprises an oil guide groove and an oil receiving portion, the oil guide groove is mounted in the case body, an oil inlet end of the oil guide groove is communicated with the oil guide hole, an oil outlet end of the oil guide groove is communicated with the oil receiving portion, one end of the oil receiving portion is connected with the case body and communicated with the oil outlet end of the oil guide groove, the other end of the oil receiving portion extends into the shaft hole of the gear shaft, and the oil receiving portion is used for guiding lubricating oil which flows from the oil outlet end of the oil guide groove into the shaft hole. Lubricating oil in the transfer case is circulated sequentially along the oil guide hole, the oil guide groove, the oil receiving portion, the meshing end of the shaft hole internal spline and the non-meshing end of the shaft hole internal spline, the bearing and the oil guide hole, the lubricating oil continuously flows through the meshing end of the internal spline during the circulation process, and thereby the internal spline is lubricated and cooled. Accordingly, the transfer case has a good lubrication effect on the spline, the service life of the spline is long, and the reliability of the transfer case is high.

Description

Transfer case and engineering machinery
Technical field
The utility model relates to engineering machinery field, particularly a kind of transfer case and engineering machinery.
Background technique
Transfer case is the critical component of engineering machinery, and it is used for the power of motor is carried out assigned unit, and then for engineering machinery provides suitable driving force, improves handling.If a minute motivation breaks down, then can cause complete machine to move.
The gear shaft of transfer case is fixed in the casing by bearing, and with pump by spline joint, if this spline can not be lubricated and be cooled off by lubricant oil, then can seriously shorten its working life, and then affect the reliability of transfer case.
Existing transfer case is provided with oil guiding hole at casing, and gear oil Oil Guide gusset on casing oil guiding hole of flowing through enters bearing face under the effect of self gravitation.The lubricant oil major part that flows into transfer case is used for lubricating bearings, and it is less to enter the oil mass that in the axis hole spline is lubricated, and therefore existing transfer case is not good to the lubrication effect of the spline in the gear shaft.
The model utility content
In view of this, the utility model proposes a kind of transfer case and engineering machinery, to solve existing transfer case to the not good problem of gear shaft spline lubrication effect.
On the one hand, the utility model provides a kind of transfer case, comprising: casing, gear shaft and bearing; The shaft hole inner wall of described gear shaft is provided with internal spline, and described casing is provided with oil guiding hole;
Described transfer case also comprises: oil guide slot and meet oily section;
Described oil guide slot is arranged in the casing, and the oil inlet end of described oil guide slot communicates with described oil guiding hole, and oil outlet end meets oily section and communicates with described;
A described end that meets oily section links to each other with described casing and communicates with the oil outlet end of described oil guide slot, and the other end extends into the axis hole of described gear shaft, describedly meets oily section and is used for the lubricant oil that the oil outlet end with oil guide slot flows out and imports in the described axis hole.
Further, described transfer case also comprises: flinger ring, and described flinger ring is arranged at the inwall of described axis hole, and is positioned at the non-end of engagement place of described internal spline, and described non-end of engagement is an end relative with the end of engagement of described internal spline.
Further, the interior circular diameter of described flinger ring is less than the large footpath of described internal spline.
Further, described transfer case also comprises: the limited ring spacing to described flinger ring that be used for that is arranged at described axis hole.
Further, the outside diameter of described limited ring is greater than the diameter of described axis hole, and described axis hole is provided with the circular groove suitable with the cylindrical of described limited ring.
Further, describedly meet oily section and removably connect by fastening piece and described casing.
Further, described to meet oily section be semi-circular tube, and described semi-circular tube is positioned at the below of the oil outlet end of described oil guide slot.
Further, described to meet oily section be pipe, and described pipe links to each other with the oil outlet end of described oil guide slot.
Further, be provided with angle between the axis of the described arranged direction that meets oily section and described axis hole.
On the other hand, the utility model provide a kind of transfer case its be provided with above-mentioned transfer case.
Now for existing transfer case, the casing of transfer case of the present utility model is provided with the oil guide slot that communicates with oil guiding hole, and communicate with this oil guide slot meet oily section, and this end that meets oily section extends in the axis hole.Thus, lubricant oil can be successively circulates along oil guiding hole, oil guide slot, the order that connects oily section, axis hole internal spline end of engagement and non-end of engagement, bearing, oil guiding hole, lubricant oil can continue to flow in cyclic process through the end of engagement of internal spline, realizes thus the lubrication and cooling to internal spline.Therefore, this transfer case has preferably lubrication effect to spline, and the working life of spline is longer, and the reliability of transfer case is higher.
The engineering machinery that the utility model provides is provided with above-mentioned transfer case, because above-mentioned transfer case has above-mentioned technique effect, therefore, this project machinery also should possess corresponding technique effect.
Description of drawings
The accompanying drawing that consists of a part of the present utility model is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
The structural representation of the transfer case that Fig. 1 provides for the utility model embodiment 1;
The structural representation of the transfer case that Fig. 2 provides for the utility model embodiment 2;
Fig. 3 is flinger ring and the position view in axis hole;
The structural representation of the transfer case that Fig. 4 provides for the utility model embodiment 3;
The structural representation of the transfer case that Fig. 5 provides for the utility model embodiment 4.
Description of reference numerals:
1 casing, 11 oil guiding holes
12 oil guide slot, 2 gear shafts
21 internal splines, 3 bearings
4 connect oily section 41 screws
5 flinger rings, 6 limited rings
Embodiment
Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment in the utility model can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Fig. 1 shows the structure of the utility model embodiment 1 transfer case, and this transfer case comprises:
Casing 1, gear shaft 2, bearing 3 and meet oily section 4;
Casing 1 is provided with oil guiding hole 11, and the inwall of the axis hole of gear shaft 2 is provided with internal spline 21;
Wherein:
Also be provided with oil guide slot 12 in the casing 1, the oil inlet end of oil guide slot 12 communicates with oil guiding hole 11;
Meet oily section 4 and be specially semi-circular tube, the one end links to each other with casing 1 by screw 41 and is positioned at the bottom of oil guide slot 12 oil outlet ends, meets thus oily section 4 and communicates with the oil outlet end of oil guide slot 12, is used for the lubricant oil that access is flowed out from oil guide slot 12 oil outlet ends; The other end that meets oily section 4 extends into axis hole; Meeting oily section 4 is used for the lubricant oil that the oil outlet end with oil guide slot 12 flows out and imports in the axis hole;
The direction of arrow is the lubricant oil trend among Fig. 1, is specially:
Lubricant oil Oil Guide gusset on casing 1 enters oil guiding hole 11;
Lubricant oil enters oil guide slot 12 by oil guiding hole 11;
Lubricant oil is from oil guide slot 12 outflows and fall into the oily section 4 that connects;
Lubricant oil carries over and connects in the oily section 4 inflow axis holes;
Gear shaft 2 is in the state of High Rotation Speed, can be attached to the inwall of axis hole bottom and flow to end of engagement and the non-end of engagement of internal spline 21 from connecing lubricant oil that oily section 4 flows out, the lubricant oil that flows to internal spline 21 end of engagements enters into and connects the spline engagement place, and spline is lubricated;
Lubricant oil is flowed through and is flowed out from the axis hole two ends behind the end of engagement of internal spline 21 and the non-end of engagement, and bearing is lubricated;
The gear shaft 3 of High Rotation Speed carries out above-mentioned circulation after lubricant oil is got rid of the Oil Guide gusset.
In the utility model, the end of engagement of internal spline 21 refers to the end that the internal spline of gear shaft is meshed with the spline of pump, and non-end of engagement refers to an end relative with described end of engagement.
In above-described embodiment, the effect of oil guide slot 12 is the lubricant oil that flows into from oil guiding hole 11 is carried out water conservancy diversion, and the oil outlet end of oil guide slot 12 communicates with the axis hole of bearing 3.But gapped between 2 between oil guide slot 12 and the gear shaft, therefore the lubricant oil that flows out from the oil outlet end of oil guide slot 12 is from flowing directly in the axis hole, the effect that meets oily section 4 is: the lubricant oil that the oil outlet end of oil guide slot 12 is flowed out imports in the axis hole, the one end links to each other with casing 1 and is positioned at the lower end of oil guide slot 12, an end that namely meets oily section 4 communicates with the oil outlet end of oil guide slot 12, is used for the lubricant oil of the oil outlet end outflow of access oil guide slot 12; Its other end extends into axis hole, and the lubricant oil that is used for will connecing in the oily section 4 imports to axis hole inside.The lubricant oil that the flows into axis hole inside end of engagement of internal spline 21 of flowing through is realized internal spline 21 is lubricated and cools off thus.
The casing of the transfer case that present embodiment provides is provided with the oil guide slot that communicates with oil guiding hole, and communicate with this oil guide slot meet oily section, and this end that meets oily section extends in the axis hole.Thus, lubricant oil can be successively circulates along oil guiding hole, oil guide slot, the order that connects oily section, axis hole internal spline end of engagement and non-end of engagement, bearing, oil guiding hole, lubricant oil can continue to flow in cyclic process through the end of engagement of internal spline, realizes thus the lubrication and cooling to internal spline.Therefore, this transfer case has preferably lubrication effect to spline.
Fig. 2 shows the structure of the utility model embodiment 2 transfer case, and this transfer case and embodiment's 1 difference is: it also is provided with flinger ring 5, and this flinger ring is arranged at shaft hole inner wall, and is positioned at the non-end of engagement place of internal spline 21.
Set up flinger ring 5 be used for be: the lubricant oil that flows to internal spline 21 non-end of engagements in the axis hole is held back, is made more lubricant oil flow to the end of engagement of internal spline 21, improve the lubrication effect to internal spline 21.
In order further to increase the flow of internal spline 21 end of engagement place lubricant oil, above-mentioned transfer case also preferably arranges flinger ring 5 inner circle diameter d 1Large footpath d less than internal spline 21 0(Fig. 3).
Fig. 4 shows the structure of the utility model embodiment 3 transfer case, and this transfer case and embodiment's 1 difference is:
Also be provided with limited ring 6 in the axis hole, the outside diameter of limited ring 6 is provided with the circular groove suitable with the cylindrical of limited ring 6 greater than the diameter of axis hole in the axis hole; Limited ring 6 is arranged in the circular groove of axis hole, and an end of limited ring 6 contacts with flinger ring 5, and limited ring 6 is used for spacing to flinger ring 5;
The effect of setting up limited ring 6 is to carry out spacing to flinger ring 5, prevent that transfer case is in the situation that vibrations occurs or swing, the position of flinger ring 5 is offset, flinger ring 5 all can be brought into play in various working environments cut preferably oily effect, improve the stability of internal spline 21 engagement place flow of lubrication.
Fig. 5 shows the structure of the utility model embodiment 4 transfer case, and this transfer case and embodiment's 3 difference is:
Meet the arranged direction (L among Fig. 5 of oily section 4 2) with the axis (L among Fig. 5 of axis hole 1) between be provided with angle α.
In the transfer case that present embodiment provides, connect the arranged direction of oily section 4 to axis hole bottom angled several angle, the lubricant oil that connects thus in the oily section 4 all flows in the axis hole, on the one hand under action of gravitation fast, reduce the resid amount that connects in the oily section 4, improve the utilization ratio of lubricant oil; On the other hand, improve the speed of circulation of lubricant oil.
Need to prove that meeting oily section in above-described embodiment is the semi-circular tube structure, it can also adopt circular tube structure, and this pipe links to each other with the oil outlet end of oil guide slot.Similarly, meet oily section and also can adopt other to have the structure of holding oily space, concrete such as v-shaped tube, square tubular etc.
Need to prove that the oily section that connects in above-described embodiment removably connects by screw and casing, the advantage of this kind Placement is to be convenient to regulate the position that meets oily section.It will be understood by those skilled in the art that meeting oily section also can adopt other fastening piece well known to those skilled in the art to link to each other with casing.Or, connect oily section also can with welding box body, bonding or the riveted joint.
The utility model also provides a kind of engineering machinery, and it is provided with above-mentioned transfer case.Because above-mentioned transfer case has above-mentioned technique effect, therefore, the engineering machinery that is provided with this transfer case also should possess corresponding technique effect, and its specific implementation process is similar to the above embodiments, does not hereby give unnecessary details.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims (10)

1. a transfer case comprises: casing (1), gear shaft (2) and bearing (3); The shaft hole inner wall of described gear shaft (2) is provided with internal spline (21), and described casing (1) is provided with oil guiding hole (11), it is characterized in that,
Described transfer case also comprises: oil guide slot (12) and meet oily section (4);
Described oil guide slot (12) is arranged in the casing (1), and the oil inlet end of described oil guide slot (12) communicates with described oil guiding hole (11), and oil outlet end communicates with the described oily section (4) that connects;
A described end that meets oily section (4) links to each other with described casing (1) and communicates with the oil outlet end of described oil guide slot, the other end extends into the axis hole of described gear shaft, and the described oily section (4) that connects imports in the described axis hole for the lubricant oil that the oil outlet end with oil guide slot (12) flows out.
2. transfer case according to claim 1, it is characterized in that, described transfer case also comprises: flinger ring (5), described flinger ring (5) is arranged at the inwall of described axis hole, and being positioned at the non-end of engagement place of described internal spline (21), described non-end of engagement is an end relative with the end of engagement of described internal spline (21).
3. transfer case according to claim 2 is characterized in that, the interior circular diameter of described flinger ring (5) is less than the large footpath of described internal spline (21).
4. transfer case according to claim 2 is characterized in that, described transfer case also comprises: the limited ring (6) spacing to described flinger ring (5) that be used for that is arranged at described axis hole.
5. transfer case according to claim 4 is characterized in that, the outside diameter of described limited ring (6) is greater than the diameter of described axis hole, and described axis hole is provided with the circular groove suitable with the cylindrical of described limited ring (6).
6. transfer case according to claim 1 is characterized in that, the described oily section (4) that connects removably connects by fastening piece and described casing (1).
7. transfer case according to claim 1 is characterized in that, the described oily section (4) that connects is semi-circular tube, and described semi-circular tube is positioned at the below of the oil outlet end of described oil guide slot (12).
8. transfer case according to claim 1 is characterized in that, the described oily section (4) that connects is pipe, and described pipe links to each other with the oil outlet end of described oil guide slot (12).
9. transfer case according to claim 1 is characterized in that, is provided with angle between the axis of the described arranged direction that meets oily section (4) and described axis hole.
10. an engineering machinery is characterized in that, it is provided with the described transfer case of claim 1 to 9 any one.
CN 201220271797 2012-06-08 2012-06-08 Transfer case and engineering machinery Active CN202646648U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220271797 CN202646648U (en) 2012-06-08 2012-06-08 Transfer case and engineering machinery

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201220271797 CN202646648U (en) 2012-06-08 2012-06-08 Transfer case and engineering machinery
PCT/CN2012/086020 WO2013181906A1 (en) 2012-06-08 2012-12-06 Transfer case and engineering machinery

Publications (1)

Publication Number Publication Date
CN202646648U true CN202646648U (en) 2013-01-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220271797 Active CN202646648U (en) 2012-06-08 2012-06-08 Transfer case and engineering machinery

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CN (1) CN202646648U (en)
WO (1) WO2013181906A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103671842A (en) * 2013-12-05 2014-03-26 柳工无锡路面机械有限公司 Transfer case of vibratory roller
CN107407397A (en) * 2015-06-08 2017-11-28 株式会社小松制作所 Power transmission and the working truck for possessing power transmission

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4616526A (en) * 1983-02-26 1986-10-14 Toyota Jidosha Kabushiki Kaisha Transmission device housing construction with shaft lubricating oil shield cover generating lubricant pool
US4860612A (en) * 1985-04-01 1989-08-29 Dana Corporation Vehicle torque transfer case for a four wheel drive system
US4922765A (en) * 1985-07-25 1990-05-08 Aisin-Warner Kabushiki Kaisha Lubricating structure for transmission mechanism
US8647225B2 (en) * 2007-11-29 2014-02-11 Ford Global Technologies, Llc Transfer case for a motor vehicle powertrain
DE102008029880A1 (en) * 2008-06-24 2009-12-31 Magna Powertrain Ag & Co Kg Method and device for lubricating a transmission of a motor vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103671842A (en) * 2013-12-05 2014-03-26 柳工无锡路面机械有限公司 Transfer case of vibratory roller
CN107407397A (en) * 2015-06-08 2017-11-28 株式会社小松制作所 Power transmission and the working truck for possessing power transmission

Also Published As

Publication number Publication date
WO2013181906A1 (en) 2013-12-12

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