CN201627930U - Front-drive sand preventing full-sealing device of four-wheel motorcycle - Google Patents
Front-drive sand preventing full-sealing device of four-wheel motorcycle Download PDFInfo
- Publication number
- CN201627930U CN201627930U CN200920207449XU CN200920207449U CN201627930U CN 201627930 U CN201627930 U CN 201627930U CN 200920207449X U CN200920207449X U CN 200920207449XU CN 200920207449 U CN200920207449 U CN 200920207449U CN 201627930 U CN201627930 U CN 201627930U
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- China
- Prior art keywords
- forerunner
- sand
- crankcase
- gear
- sand cover
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Abstract
The utility model discloses a front-drive sand preventing full-sealing device of four-wheel motorcycle. Two ends of a front-drive transmission shaft are respectively connected with an output shaft of an engine and an input shaft of a front-drive gear case via universal joints, a sealing cover is mounted between a crankcase and the front-drive gear case so that the front-drive transmission shaft and the universal joints at two ends thereof are positioned in the sealing cover, the sealing cover comprises a corrugated sleeve, and a first sand-preventing cover and a second sand-preventing cover which are connected to two ends of the corrugated sleeve in a sealing manner, the first sand-preventing cover is connected to the crankcase in a sealing manner, and the second sand-preventing cover is connected, in a sealing manner, to a connecting sleeve arranged on the front-drive gear case. The front-drive sand preventing full-sealing device can prevent the front-drive transmission mechanism of a four-wheel motorcycle from being damaged by dust and sand, avoid oil leakage of cases and guarantee normal front-drive transmission, in addition, the device is simple in structure, convenient in assembly, reliable, safe and eye-pleasing.
Description
Technical field
The utility model relates to forerunner's transmission field of four-wheel motor cycle, is specifically related to a kind of four-wheel motor cycle forerunner sand prevention full-sealing device.
Background technique
The four-wheel motor cycle front-wheel drive is by being connected the transmission shaft between engine output shaft and the forerunner's gear-box, engine power is passed to forerunner's gear-box, by forerunner's gear-box power distribution is passed to left and right sides front-wheel, because the two ends of transmission shaft are to connect engine output shaft and forerunner's gearbox input shaft by universal joint respectively, so the pitch space between forerunner's gear-box and the engine crankcase is relatively large.Forerunner's gear-box of existing four-wheel motor cycle and engine crankcase are for preventing that lubricant oil leaks outside in the case, oil sealing is set in the outside of the bearing of supporting input shaft or output shaft respectively realizes sealing, and these oil sealings are because its outer end of assembling reason all is to be exposed to the outside casing.When full landform four-wheel motor cycle travels on the desert, the sand and dust of kicking up are easy to attached to the oil sealing outer surface, when axle rotates with respect to oil sealing, the sand and dust that adhering to can cause oil seal lip heavy wear, cause the oil sealing damage and cause leakage of oil, simultaneously, the oil sealing serious wear also can cause sand and dust to enter in front drive gear case, the engine crankcase, cause a series of problems of component heavy wears such as bearing, gear, shorten front drive gear case, engine crankcase working life, increase user's economic burden.And because of transmission shaft, universal joint also are to be exposed shape, the sand and dust of kicking up also can cause the joint serious wear of transmission shaft and universal joint attached on transmission shaft, the universal joint, influence the normal delivery of power, shorten the working life of transmission shaft, universal joint.Therefore, the sealing configuration of the front drive gear case of existing four-wheel motor cycle, engine crankcase can not satisfy the usage requirement of full landform four-wheel motor cycle at wind sand environment.
Summary of the invention
The purpose of this utility model is the deficiency that exists at prior art, a kind of four-wheel motor cycle forerunner sand prevention full-sealing device is provided, it makes the universal joint at forerunner's transmission shaft and two ends be arranged in seal closure by a seal closure is installed between crankcase and forerunner's gear-box, driving transmission mechanism is damaged by sand and dust before can preventing full landform four-wheel motor cycle, avoids the casing leakage of oil and guarantees that forerunner's transmission is normal.
The purpose of this utility model is achieved in that engine output shaft cooperates with crankcase by bearing, output shaft extends crankcase, gap oil sealing sealing between crankcase and the output shaft, forerunner's gearbox input shaft cooperates with gear-box by bearing, input shaft extends forerunner's gear-box, gap oil sealing sealing between forerunner's gear-box and the input shaft, the two ends of forerunner's transmission shaft are connected with forerunner's gearbox input shaft with engine output shaft by universal joint respectively, one seal closure is installed between described crankcase and the forerunner's gear-box makes the universal joint at forerunner's transmission shaft and two ends be arranged in seal closure, described seal closure comprises a radiation fins and is sealedly attached to first anti-sand cover at radiation fins two ends, second anti-sand cover, first anti-sand cover is sealedly connected on the crankcase, and second anti-sand cover is sealedly connected on the connecting sleeve of forerunner's gear-box setting.
Described first anti-sand cover, second anti-sand cover are the tube-in-tube structure of axial bending, this tube-in-tube structure is made of the stamping forming thin-wall barrel welding of axially cutting open to two halves, its connection part that is used to connect crankcase or forerunner's gear-box is provided with a plurality of circumferential openings that extend axially, the inside and outside all cladding rubber layers of the barrel of this connection part, connection part are enclosed within on the connecting sleeve 9 of the axis hole boss of crankcase or the setting of forerunner's gear-box and fix with clip.
The rubber layer of described first anti-sand cover, second anti-sand cover is equipped with the positioning block tongue that extends axially out, the positioning block tongue of first anti-sand cover is stuck in the locating slot that is provided with on the crankcase and locatees, and the positioning block tongue of second anti-sand cover is stuck in the locating slot that is provided with on the connecting sleeve of forerunner's gear-box setting and locatees.
Equal impact briquetting has stiffening rib on described first anti-sand cover, second anti-sand cover, and an end impact briquetting that is connected with corrugated bushing has positioning ring groove.
Described radiation fins is a rubber bellows set.
Described connecting sleeve interference fit press-fits and is connected on forerunner's gear-box.
Owing to adopt technique scheme, one seal closure is installed between described crankcase and the forerunner's gear-box makes the universal joint at forerunner's transmission shaft and two ends be arranged in seal closure, described seal closure comprises a radiation fins and is sealedly attached to first anti-sand cover, second anti-sand cover at radiation fins two ends, first anti-sand cover is sealedly connected on the crankcase, and second anti-sand cover is sealedly connected on the connecting sleeve of forerunner's gear-box setting.Thus, make whole forerunner's transmission system obtain hermetically sealed, can prevent the sand and dust kicked up when full landform four-wheel motor cycle travels joint attached to oil seal lip, transmission shaft and universal joint on the desert, avoid oil sealing to damage and the joint wearing and tearing, guarantee that forerunner's transmission system normally moves, also can prevent that sand and dust from entering the transmission component in the wearing and tearing casing in the casing simultaneously.
Described first anti-sand cover, second anti-sand cover are the tube-in-tube structure of axial bending, and this tube-in-tube structure is made of the stamping forming thin-wall barrel welding of axially cutting open to two halves.The moulding of first anti-sand cover, second anti-sand cover of the tube-in-tube structure of axial bending is made easily, satisfied the form that is connected of universal joint and output shaft or input shaft.The connection part that being used to of described first anti-sand cover and second anti-sand cover is connected crankcase or forerunner's gear-box is provided with a plurality of circumferential openings that extend axially, the inside and outside all cladding rubber layers of the barrel of this connection part, connection part are enclosed within on the connecting sleeve of the axis hole boss of crankcase or the setting of forerunner's gear-box and fix with clip.Anti-sand cover can be out of shape by the hole enlargement that axially extended opening forms a little when connecting, it is in place, can under the compressing of clip, form necking deformation a little during simultaneously with the clip banding again, form tight sealing state.The inside and outside all cladding rubber layers of the barrel of the connection part of described first anti-sand cover and second anti-sand cover can be realized tight sealing by rubber layer.
The rubber layer of described first anti-sand cover, second anti-sand cover is equipped with the positioning block tongue that extends axially out, like this when first anti-sand cover is connected with the crankcase assembling, the positioning block tongue of first anti-sand cover is stuck in the locating slot that is provided with on the crankcase and locatees, the assembling of first anti-sand cover and crankcase can not misplaced, guarantee that the direction of turning back of the bending of first anti-sand cover and universal joint is consistent; When second anti-sand cover and connecting sleeve assembling, the positioning block tongue of second anti-sand cover is stuck in the locating slot that is provided with on the connecting sleeve of forerunner's gear-box setting and locatees, the assembling of second anti-sand cover and forerunner's gear-box can not misplaced, guarantee that the direction of turning back of the bending of second anti-sand cover and universal joint is consistent.
Described radiation fins is a rubber bellows set, can take seal closure apart during parts in addition changing transmission shaft, oil sealing etc., takes apart behind the seal closure to one side compressing rubber radiation fins, and exposing needs the maintenance position, and will not pull down fully by whole seal closure.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to partial view;
Fig. 3 is that the B of Fig. 1 is to partial view;
Fig. 4 is the opening schematic representation of first anti-sand cover;
Fig. 5 is two-part schematic representation of first anti-sand cover;
Fig. 6 is the structural representation of first anti-sand cover.
In the accompanying drawing, 1 is crankcase, and 2a, 2b, 2c, 2d are clip, 3 is first anti-sand cover, and 3a is a rubber layer, and 3b is an opening, 3c is an annular groove, and 3d is a stiffening rib, and 3e is a connection part, 4 is output shaft, and 5 is radiation fins, and 6 is first universal joint, 7 is second anti-sand cover, 8 is input shaft, and 9 is connecting sleeve, and 10 is the front drive gear case, 11 is seal closure, 12a, 12b are bearing, and 13 is first oil sealing, and 14 is transmission shaft, 15 is second oil sealing, 16 is second universal joint, and 22a, 22b are positioning block tongue, and 23a, 23b are locating slot.
Embodiment
Referring to figs. 1 through Fig. 6, four-wheel motor cycle forerunner sand prevention full-sealing device, engine output shaft 4 cooperates with crankcase 1 by bearing 12a, output shaft 4 extends crankcase 1, gap between crankcase 1 and the output shaft 4 seals with first oil sealing 13, forerunner's gearbox input shaft 8 cooperates with gear-box 10 by bearing 12b, input shaft 8 extends forerunner's gear-box 10, gap between forerunner's gear-box 10 and the input shaft 8 seals with second oil sealing 15, the two ends of forerunner's transmission shaft 14 are connected with engine output shaft 4 by first universal joint 6 respectively, are connected with forerunner's gearbox input shaft 8 by second universal joint 16.One seal closure 11 is installed between described crankcase 1 and the forerunner's gear-box 10 makes the universal joint 6,16 at forerunner's transmission shaft 14 and two ends be arranged in seal closure 11.Described seal closure 11 comprises a radiation fins 5 and is sealedly attached to first anti-sand cover 3, second anti-sand cover 7 at radiation fins two ends, radiation fins 5 is a rubber bellows set, radiation fins 5 one ends are enclosed within on first anti-sand cover 3 with clip 2b banding, first anti-sand cover 3 is sealedly connected on the crankcase 1, radiation fins 5 the other ends are enclosed within uses clip 2c banding on second anti-sand cover 7, second anti-sand cover 7 is sealedly connected on the connecting sleeve 9 of forerunner's gear-box 10 settings.Described first anti-sand cover 3, second anti-sand cover 7 is the tube-in-tube structure of axial bending, this tube-in-tube structure is made of the stamping forming thin-wall barrel welding of axially cutting open to two halves, its connection part 3e that is used to connect crankcase or forerunner's gear-box is provided with a plurality of circumferential opening 3b that extend axially, the inside and outside all cladding rubber layer 3a of the barrel of this connection part 3e, the connection part 3e of the first anti-sand cover 3d is enclosed within on the axis hole boss of crankcase 1, fix with clip 2a banding, the connection part of second anti-sand cover 7 is enclosed within to press-fit on the connecting sleeve 9 that is connected on forerunner's gear-box 10 by interference fit and fixes with clip 2d banding.The rubber layer of described first anti-sand cover 3, second anti-sand cover 7 is equipped with positioning block tongue 22a, the 22b that extends axially out, the positioning block tongue 22a of first anti-sand cover 3 is stuck among the locating slot 23a that is provided with on the crankcase 1 and locatees, the positioning block tongue 22b of second anti-sand cover 7 is stuck among the locating slot 23b that is provided with on the connecting sleeve 9 of forerunner's gear-box setting and locatees, the bending that anti-sand cover when connecting is installed can be kept consistency with turning back of universal joint, help quick mounting.Equal impact briquetting has stiffening rib 3d on described first anti-sand cover 3, second anti-sand cover 7, and an end impact briquetting that is connected with radiation fins 5 has positioning ring groove 3c, and stiffening rib 3d extends axially along anti-sand cover 3, and circumferentially.
The process of assembling this device is:
Press-fit connecting sleeve on forerunner's gear case body, the assembly mark of during assembling locating slot being aimed on the casing press-fits; Then the input shaft of second universal joint with forerunner's gear-box is connected; Assembling second anti-sand cover on connecting sleeve subsequently makes the positioning block tongue of second anti-sand cover insert in the locating slot of connecting sleeve and locatees during assembling, fix with the clip banding then; First universal joint is connected with engine output shaft, and assembling first anti-sand cover on the engine crankshaft casing makes the positioning block tongue of first anti-sand cover insert in the locating slot of casing and locatees during assembling, fix with the clip banding then; One end of forerunner's transmission shaft is connected with the second universal joint spline, one end of rubber bellows set is enclosed within on second anti-sand cover fixes with the clip banding, forerunner's transmission shaft is passed from radiation fins, the other end with transmission shaft is connected with the first universal joint spline again, the other end of rubber bellows set is enclosed within on first anti-sand cover fixes with the clip banding then; Thus this anti-dust device is installed between engine crankcase and the forerunner's gear-box, realizes the sealing fully of the preceding driving transmission mechanism of engine crankcase and forerunner's gear-box, prevent the infringement of sand and dust forerunner's power train.
The anti-dust device of driving transmission mechanism is installed on the full landform four-wheel motor cycle of K/KDC3 air-drop type before the utility model, the anti-dust storm test done in desert, Dunhuang, Gansu, airdrop test, thermocycling etc. have been finished, reach design input requirement, satisfied air-drop type all-terrain vehicle Environmental Conditions demand.
Claims (6)
1. four-wheel motor cycle forerunner sand prevention full-sealing device, engine output shaft cooperates with crankcase by bearing, output shaft extends crankcase, gap oil sealing sealing between crankcase and the output shaft, forerunner's gearbox input shaft cooperates with gear-box by bearing, input shaft extends forerunner's gear-box, gap oil sealing sealing between forerunner's gear-box and the input shaft, the two ends of forerunner's transmission shaft are connected with forerunner's gearbox input shaft with engine output shaft by universal joint respectively, it is characterized in that: a seal closure is installed between described crankcase and the forerunner's gear-box is made the universal joint at forerunner's transmission shaft and two ends be arranged in seal closure, described seal closure comprises a radiation fins and is sealedly attached to first anti-sand cover at radiation fins two ends, second anti-sand cover, first anti-sand cover is sealedly connected on the crankcase, and second anti-sand cover is sealedly connected on the connecting sleeve of forerunner's gear-box setting.
2. four-wheel motor cycle forerunner sand prevention full-sealing device according to claim 1, it is characterized in that: described first anti-sand cover, second anti-sand cover are the tube-in-tube structure of axial bending, this tube-in-tube structure is made of the stamping forming thin-wall barrel welding of axially cutting open to two halves, its connection part that is used to connect crankcase or forerunner's gear-box is provided with a plurality of circumferential openings that extend axially, the inside and outside all cladding rubber layers of the barrel of this connection part, connection part are enclosed within on the connecting sleeve of the axis hole boss of crankcase or the setting of forerunner's gear-box and fix with clip.
3. four-wheel motor cycle forerunner sand prevention full-sealing device according to claim 1 and 2, it is characterized in that: the rubber layer of described first anti-sand cover, second anti-sand cover is equipped with the positioning block tongue that extends axially out, the positioning block tongue of first anti-sand cover is stuck in the locating slot that is provided with on the crankcase and locatees, and the positioning block tongue of second anti-sand cover is stuck in the locating slot that is provided with on the connecting sleeve of forerunner's gear-box setting and locatees.
4. four-wheel motor cycle forerunner sand prevention full-sealing device according to claim 1 and 2 is characterized in that: equal impact briquetting has stiffening rib on described first anti-sand cover, second anti-sand cover, and an end impact briquetting that is connected with radiation fins has positioning ring groove.
5. four-wheel motor cycle forerunner sand prevention full-sealing device according to claim 1, it is characterized in that: described radiation fins is a rubber bellows set.
6. four-wheel motor cycle forerunner sand prevention full-sealing device according to claim 1 is characterized in that: described connecting sleeve interference fit press-fits and is connected on forerunner's gear-box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920207449XU CN201627930U (en) | 2009-11-30 | 2009-11-30 | Front-drive sand preventing full-sealing device of four-wheel motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920207449XU CN201627930U (en) | 2009-11-30 | 2009-11-30 | Front-drive sand preventing full-sealing device of four-wheel motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201627930U true CN201627930U (en) | 2010-11-10 |
Family
ID=43059322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920207449XU Expired - Lifetime CN201627930U (en) | 2009-11-30 | 2009-11-30 | Front-drive sand preventing full-sealing device of four-wheel motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201627930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716883B (en) * | 2009-11-30 | 2013-04-10 | 重庆建设摩托车股份有限公司 | Sand and dust prevention sealing device of all-terrain four-wheel motor cycle front wheel drive transmission mechanism |
-
2009
- 2009-11-30 CN CN200920207449XU patent/CN201627930U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716883B (en) * | 2009-11-30 | 2013-04-10 | 重庆建设摩托车股份有限公司 | Sand and dust prevention sealing device of all-terrain four-wheel motor cycle front wheel drive transmission mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101110 Effective date of abandoning: 20091130 |
|
| RGAV | Abandon patent right to avoid regrant |