CN205154949U - Axial taper hole formula bearing cross package assembly structure - Google Patents
Axial taper hole formula bearing cross package assembly structure Download PDFInfo
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- CN205154949U CN205154949U CN201521019986.3U CN201521019986U CN205154949U CN 205154949 U CN205154949 U CN 205154949U CN 201521019986 U CN201521019986 U CN 201521019986U CN 205154949 U CN205154949 U CN 205154949U
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- cross axle
- bearing housing
- spindle nose
- bearing
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Abstract
The utility model discloses an axial taper hole formula bearing cross package assembly structure, the cross that belongs to universal joint wraps technical field. The utility model discloses a cross axle spindle nose, bearing housing and set up the cylindrical roller between cross axle spindle nose and bearing housing, the bearing housing adopt the bell mouth design, the one end aperture that this bearing housing is close to the cross axle spindle nose is greater than the one end aperture near the cross axle root. The utility model discloses well cross axle when atress transmission moment of torsion, when can be according to the cross axle rotatory on its face of cylinder the linear displacement difference take the indemnifying measure, make cross axle each part from the spindle nose to the axle journal avoid cross axle face of cylinder part atress too big at carry -over moment in -process atress even as far as possible, lead to the fact local conquassation or fatigue failure to the cross package life -span has been improved.
Description
Technical field
The utility model relates to the cross bag assembly structure of Hooks coupling universal coupling on mechanical transmission, and more particularly, relate to a kind of axial taper hole type bearing cross bag assembly structure, the utility model can be used on the Hooks coupling universal couplings such as SWC type, SWZ type, SWP type.
Background technique
In the cross universal coupling of NBS, SWC type belongs to integral formula, and SWZ type belongs to solid bearing A seating, and SWP type belongs to divided bearing A seating etc.Hooks coupling universal coupling dissimilar above, its cross bag assembly structure has a variety of, but common ground is all: axial bearing aperture is cylindrical, and cross axle spindle nose is cylindrical; Matched by cylindrical roller (or needle roller) between the two.As Fig. 1 is a kind of typical cross bag assembly structure, the advantage of this structure is that processing is simple, but find in production practices, the bearing housing of this type of cross bag assembly structure, roller, cross axle in use very easily damage, thus the bulk life time of cross bag assembly is shortened greatly.
Through retrieval, Chinese Patent Application No. 200810123807.9, the applying date is on June 5th, 2008, invention and created name is: axial high strength bolt type spacing cross bag assembly structure, this application case is by cross axle assembly, bearing unit, end-cap assembly forms, be characterized in there is a bearing (ball) cover respectively on four spindle noses, it is connected with jaw by high-strength bolt, bearing (ball) cover is separated with bearing outer ring and can dismantles separately, outside high-strength bolt, limited location snap ring positions with locking to it, also be provided with an axis simultaneously and adjust assembly, a bearing elastic positioning member, an end face bearing inner race and a catch.This application case by reducing the length of cross axle, thus facilitates the assembling of cross axle, and bearing inner race, as the easily damaged parts of a lighter in weight, becomes the position that cross axle is stressed and impact is maximum, both protected the spare parts cost that cross axle again reduces cross axle.But this application case does not fundamentally solve that cross axle fracture, bearing housing conquassation, cylindrical roller are cracked etc. causes cross bag assembly to damage the problem of inefficacy, still need to explore more preferably solution.
Model utility content
1. the model utility technical problem that will solve
The utility model to lose efficacy reasons such as mainly containing cross axle fracture, bearing housing conquassation, rolling element are cracked, the spindle nose surface pressure deform of cross axle in view of the damage of present stage cross used bag.And when designing, designer, mainly to the flexural strength special concern of cross axle, prevents cross axle from rupturing; Attention rate is destroyed to bearing housing and rolling element inadequate, cause in use, because rolling element and bearing housing damage, greatly shortened in the cross bag life-span.The utility model, by changing the inner stress of cross bag, improves the phenomenon that spindle nose position contact stress is excessive, alleviates conquassation and fatigue ruption, thus improve the cross bag life-span.
2. technological scheme
For achieving the above object, the technological scheme that the utility model provides is:
One of the present utility model axial taper hole type bearing cross bag assembly structure, the cylindrical roller comprising cross axle spindle nose, bearing housing and be arranged between cross axle spindle nose and bearing housing, described bearing housing adopts cone shape hole design, and this bearing housing is greater than the aperture, one end near cross axle root near the aperture, one end of cross axle spindle nose.
Further improve as the utility model, between cylindrical roller and cross axle spindle nose, the angular range of angle α is 1 ' ~ 9 '.
Further improve as the utility model, four axles of cross bag have a bearing housing end cap respectively, and this bearing housing end cap is connected with cross axle jaw by socket head screw.
Further improve as the utility model, be provided with cross axis faces pad between bearing housing end cap and cross axle spindle nose, the material of this cross axis faces pad adopts nylon, copper or aluminum alloy.
3. beneficial effect
The technological scheme adopting the utility model to provide, compared with existing known technology, has following remarkable result:
(1) one of the present utility model axial taper hole type bearing cross bag assembly structure, the bearing housing of its cross bag adopts cone shape hole design, namely bearing housing is divided into the large end of bearing housing taper hole near cross axle shaft head, part near cross axle root is bearing housing taper hole small end, cross axle like this is when stressed transmitting torque, indemnifying measure can be taked according to linear displacement difference on its cylndrical surface during cross shaft rotating, make cross axle from spindle nose to axle journal each several part carry-over moment process uniform stressed as far as possible, avoid cross axle cylndrical surface local pressure excessive, cause localized crush or fatigue ruption, thus improve the cross bag life-span,
(2) one of the present utility model axial taper hole type bearing cross bag assembly structure, simple, reasonable to the improvement of existing cross pack arrangement, increase reforming cost and assembling difficulty hardly, practical, easy to utilize.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional cross bag assembly;
Fig. 2 is the local structural graph of axial taper hole type bearing cross bag assembly in the utility model;
Fig. 3 is the enlarged view of border circular areas in Fig. 2.
Label declaration in schematic diagram:
1, cross axle spindle nose; 2, bearing housing; 21, snap ring; 3, cylindrical roller; 4, cross axis faces pad; 5, bearing housing end cap; 6, socket head screw.
Embodiment
For understanding content of the present utility model further, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
Embodiment 1
Referring to Fig. 2, the one of the present embodiment axial taper hole type bearing cross bag assembly structure, comprises cross axle spindle nose 1, bearing housing 2, is arranged at cylindrical roller 3, cross axis faces pad 4 and bearing housing end cap 5 between cross axle spindle nose 1 and bearing housing 2.Four axles of cross bag there is a bearing housing end cap 5 respectively, this bearing housing end cap 5 is connected with cross axle jaw by socket head screw 6, socket head screw 6 is evenly distributed with multiple along the circumferencial direction of bearing housing end cap 5, and the present embodiment realizes the sealing of cross axle by socket head screw 6 compression axis bearing sleeve end cap 5 and axially accurately locates.Between bearing housing end cap 5 and cross axle spindle nose 1, be provided with cross axis faces pad 4, this cross axis faces pad 4 is by the adjustment of elasticity location and improve the stressed of cylindrical roller 3, keeps cylindrical roller 3 to get rid of.Cross axis faces pad 4 can be selected to adopt the materials such as nylon, copper or aluminum alloy, and the present embodiment selects nylon material cross axis faces pad 4.
The core design of the present embodiment is the bearing housing 2 of cross bag to adopt cone shape hole to design, and namely this bearing housing 2 is the large end of bearing housing taper hole near one end of cross axle spindle nose 1, is taper hole small end near one end of cross axle root.Inventor points out: cross axle fracture, bearing housing conquassation, cylindrical roller are cracked, the spindle nose surface pressure deform of cross axle, and often occur in production practices, these situations all drastically influence the bulk life time of cross bag assembly.And the present stage designer still main flexural strength special concern to cross axle, main purpose is to prevent cross axle from rupturing; The attention rate destroyed bearing housing and cylindrical roller is not enough.
Inventor is by long-term discovery of concentrating on studies, the typical cross bag assembly structure of tradition as shown in Figure 1, it directly uses bearing housing 2 to realize sealing and the location of cross axle, by snap ring 21 stationary axle bearing sleeve 2, and the axial bearing aperture that bearing housing 2 inside is offered is cylindrical hole, cross axle spindle nose 1 is also cylindrical.Due in cross universal coupling working procedure, the counterrotating of cross axle jaw, bearing housing 2, can produce between cylindrical roller 3 and cross axle spindle nose 1 rotate extruding, center of gravity fulcrum again due to cross axle is far away, although the angular displacement of cross axle is constant, but linear displacement is large, and in rotation process, the spindle nose part of cross axle is first squeezed often.Also stressed much larger than stressed near axle journal position of cross axle near spindle nose position just because of cross axle; cause spindle nose position distortions large; under long-term work state; bearing housing 2, cylindrical roller 3 and cross axle will produce conquassation or fatigue ruption near spindle nose position, affect the use of whole cross bag.
Bearing housing 2 adopts cone shape hole to design by the present embodiment; adopt the mode of space compensation; make cross axle when stressed transmitting torque; indemnifying measure can be taked according to linear displacement difference on its cylndrical surface during cross shaft rotating; make cross axle from spindle nose to axle journal each several part carry-over moment process uniform stressed as far as possible; avoid cross axle cylndrical surface local pressure excessive, cause localized crush or fatigue ruption, thus improve the cross bag life-span.The tapering size of bearing housing 2 can be determined according to factors such as the Young's modulus of cross axle material, heat treatment hardnesses, from even as far as possible cross axle from spindle nose to the angle that axle journal each several part is stressed in carry-over moment process, the tilt angle of bearing housing 2, namely between cylindrical roller 3 as shown in Figure 3 and cross axle spindle nose 1, the angular range of angle α is better 1 ' ~ 9 '.The present embodiment is according to the specification of cross axle and structure, and α gets 7 '.
Also what deserves to be explained is, what offer in view of the present embodiment centre bearer bush 2 inside is cone shape hole, adopts integrated bearing as shown in Figure 1 to overlap 2 structural designs, will increase processing and the assembling difficulty of bearing housing 2 undoubtedly.For this reason, the present embodiment devises the bearing housing end cap 5 that can dismantle separately, is fixed by this bearing housing end cap 5 by socket head screw 6.So, processing and the assembling difficulty of one side bearing housing 2 reduce greatly, also facilitate on the other hand and cross bag inside is overhauled, cleans, changed the regular maintenances such as parts, and due to axial force suffered in cross bag rotation process larger, use snap ring 21 stationary axle bearing sleeve 2, also there is snap ring 21 to be difficult to resist axial force always, easily rushed the problem come off, use the mode of equally distributed High-strength internal hexagon screw 6 stationary axle bearing sleeve end cap 5, also can ensure the reliability that cross job contract is done, avoid the generation of production accident.
Embodiment 2
The one axial taper hole type bearing cross bag assembly structure of the present embodiment, basic with embodiment 1, its difference is: in the present embodiment, cross axis faces pad 4 adopts Cuprum alloy material, and between cylindrical roller 3 and cross axle spindle nose 1, angle is α, according to specification and the structure of cross axle, α gets 1 '.
Embodiment 3
The one axial taper hole type bearing cross bag assembly structure of the present embodiment, basic with embodiment 1, its difference is: in the present embodiment, cross axis faces pad 4 adopts aluminum alloy material, and between cylindrical roller 3 and cross axle spindle nose 1, angle is α, according to specification and the structure of cross axle, α gets 9 '.
One described in embodiment 1 ~ 3 axial taper hole type bearing cross bag assembly structure, it is simple, reasonable to improve, and increases reforming cost and assembling difficulty hardly, practical, easy to utilize.
Schematically above be described the utility model and mode of execution thereof, this description does not have restricted, and also just one of the mode of execution of the present utility model shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the utility model and creating aim, design the mode of structure similar to this technological scheme and embodiment without creationary, protection domain of the present utility model all should be belonged to.
Claims (4)
1. an axial taper hole type bearing cross bag assembly structure, the cylindrical roller (3) comprising cross axle spindle nose (1), bearing housing (2) and be arranged between cross axle spindle nose (1) and bearing housing (2), it is characterized in that: described bearing housing (2) adopts cone shape hole design, and this bearing housing (2) is greater than the aperture, one end near cross axle root near the aperture, one end of cross axle spindle nose (1).
2. one according to claim 1 axial taper hole type bearing cross bag assembly structure, is characterized in that: between cylindrical roller (3) and cross axle spindle nose (1), the angular range of angle α is 1 ' ~ 9 '.
3. one according to claim 1 and 2 axial taper hole type bearing cross bag assembly structure, it is characterized in that: on four axles of cross bag, have a bearing housing end cap (5) respectively, this bearing housing end cap (5) is connected with cross axle jaw by socket head screw (6).
4. one according to claim 3 axial taper hole type bearing cross bag assembly structure, it is characterized in that: between bearing housing end cap (5) and cross axle spindle nose (1), be provided with cross axis faces pad (4), the material of this cross axis faces pad (4) adopts nylon, copper or aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521019986.3U CN205154949U (en) | 2015-12-08 | 2015-12-08 | Axial taper hole formula bearing cross package assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521019986.3U CN205154949U (en) | 2015-12-08 | 2015-12-08 | Axial taper hole formula bearing cross package assembly structure |
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| Publication Number | Publication Date |
|---|---|
| CN205154949U true CN205154949U (en) | 2016-04-13 |
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|---|---|---|---|
| CN201521019986.3U Expired - Fee Related CN205154949U (en) | 2015-12-08 | 2015-12-08 | Axial taper hole formula bearing cross package assembly structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624489A (en) * | 2021-07-28 | 2021-11-09 | 东风汽车底盘系统有限公司 | Cross shaft static torsion strength detection clamp and detection method |
-
2015
- 2015-12-08 CN CN201521019986.3U patent/CN205154949U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624489A (en) * | 2021-07-28 | 2021-11-09 | 东风汽车底盘系统有限公司 | Cross shaft static torsion strength detection clamp and detection method |
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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: 20160413 Termination date: 20171208 |
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| CF01 | Termination of patent right due to non-payment of annual fee |