CN205154950U - Cross package assembly structure of even spindle nose atress - Google Patents
Cross package assembly structure of even spindle nose atress Download PDFInfo
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- CN205154950U CN205154950U CN201521019976.XU CN201521019976U CN205154950U CN 205154950 U CN205154950 U CN 205154950U CN 201521019976 U CN201521019976 U CN 201521019976U CN 205154950 U CN205154950 U CN 205154950U
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- cross
- spindle nose
- bearing housing
- cross axle
- cylindrical roller
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Abstract
The utility model discloses a cross package assembly structure of even spindle nose atress belongs to cross package technical field. The utility model discloses a cross axle spindle nose, bearing housing, cylindrical roller and bearing housing end cover have a bearing housing end cover respectively in that four of cross package are epaxial, and it is continuous with the universal joint fork head that this bearing housing end cover passes through soket head cap screw, bearing housing end cover middle part be provided with cylindrical arch, correspond ground, the cross axle spindle nose is provided with cylindrical recess, is provided with outer lane cylindrical roller between cross axle spindle nose and the bearing housing, cooperation department is provided with inner circle cylindrical roller to the inside recess of cross axle spindle nose with bearing housing end cover arch, 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 bearing housing near the cross axle root. The utility model discloses a change the inside stress of cross package, improve the too big phenomenon of spindle nose position contact stress, alleviate conquassation and 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 the cross bag assembly structure that a kind of even spindle nose is stressed, 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:
The cross bag assembly structure that a kind of even spindle nose of the present utility model is stressed, comprise cross axle spindle nose, bearing housing, cylindrical roller and bearing housing end cap, four axles of cross bag have a bearing housing end cap respectively, and this bearing housing end cap is connected with Universal joint fork by socket head screw; Cylindrical protrusions is provided with in the middle part of described bearing housing end cap, accordingly, cross axle spindle nose is provided with cylinder shape groove, is provided with outer ring cylindrical roller between cross axle spindle nose and bearing housing, and cross axle spindle nose interior grooves and bearing housing end cap male cooperation place are provided with inner ring cylindrical roller; 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 outer ring cylindrical roller and cross axle spindle nose, the angular range of angle α is 1 ' ~ 9 '.
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.
Further improve as the utility model, be provided with cross axis faces pad and end face bearing between bearing housing end cap and cross axle spindle nose, the material of described cross axis faces pad adopts nylon, copper or aluminum alloy.
Further improve as the utility model, described inner ring cylindrical roller is provided with 1 ~ 3 row along the axis of cross axle spindle nose.
Further improve as the utility model, the fitting surface of bearing housing end cap and Universal joint fork is inclined-plane.
3. beneficial effect
The technological scheme adopting the utility model to provide, compared with existing known technology, has following beneficial effect:
(1) cross bag assembly structure that a kind of even spindle nose of the present utility model is stressed, 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) cross bag assembly structure that a kind of even spindle nose of the present utility model is stressed, it by arranging cylindrical protrusions in the middle part of bearing housing end cap, in cross axle spindle nose, cylinder shape groove is set, and between cylindrical protrusions and cylinder shape groove, set up one deck inner ring cylindrical roller to increase cross axle spindle nose lifting surface area, thus reach the object of uniform stressed; In addition, after cross axle spindle nose offers cylinder shape groove, rigidity reduces, rotate the object that can be reached further uniform stressed in loading process by the micro-deformation of cross axle spindle nose, weaken linear displacement increase further, avoid cross axle local pressure excessive, the localized crush caused or fatigue ruption, further increase the cross bag life-span;
(3) cross bag assembly structure that a kind of even spindle nose of the present utility model is stressed, simple to the improvement of existing cross pack arrangement, rationally, assembling difficulty and reforming cost low, practical, easy to utilize.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional cross bag assembly;
The sectional view of the cross bag assembly that even spindle nose is stressed in Fig. 2 the utility model;
Fig. 3 is the partial structurtes schematic diagram of the cross bag assembly that in the utility model, even spindle nose is stressed;
Fig. 4 is the enlarged view of border circular areas in Fig. 3.
Label declaration in schematic diagram:
1, cross axle spindle nose; 2, bearing housing; 21, snap ring; 3, cylindrical roller; 31, outer ring cylindrical roller; 4, cross axis faces pad; 41, end face bearing; 5, bearing housing end cap; 6, socket head screw; 7, inner ring cylindrical roller; 8, Universal joint fork; 9, fitting surface.
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 cross bag assembly structure that a kind of even spindle nose of the present embodiment is stressed, comprises cross axle spindle nose 1, bearing housing 2, outer ring cylindrical roller 31, inner ring cylindrical roller 7, cross axis faces pad 4 and bearing housing end cap 5.Four axles of cross bag have a bearing housing end cap 5 respectively, and this bearing housing end cap 5 is connected with Universal joint fork 8 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.Cylindrical protrusions is provided with in the middle part of described bearing housing end cap 5, accordingly, cross axle spindle nose 1 is provided with cylinder shape groove, be provided with outer ring cylindrical roller 31 between cross axle spindle nose 1 and bearing housing 2, cross axle spindle nose 1 interior grooves and bearing housing end cap 5 male cooperation place are provided with inner ring cylindrical roller 7.Cross axis faces pad 4 is provided with between bearing housing end cap 5 and cross axle spindle nose 1, this cross axis faces pad 4 is by the adjustment of elasticity location and improve the stressed of outer ring cylindrical roller 31 and inner ring cylindrical roller 7, keeps outer ring cylindrical roller 31 and inner ring cylindrical roller 7 to get rid of.Cross axis faces pad 4 can be selected to adopt nylon, copper or aluminum alloy material, and the present embodiment selects nylon material cross axis faces pad 4.Described bearing housing 2 adopts cone shape hole to 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.
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 outer ring cylindrical roller 31 as shown in Figure 4 and cross axle spindle nose 1, the angular range of angle α is better 1 ' ~ 9 ', it is that α, α get 7 ' that the present embodiment arranges angle between outer ring cylindrical roller 31 and cross axle spindle nose 1.
In addition, the present embodiment by arranging cylindrical protrusions in the middle part of bearing housing end cap 5, cylinder shape groove is set in cross axle spindle nose 1, and between cylindrical protrusions and cylinder shape groove, sets up one deck inner ring cylindrical roller 7 increase cross axle spindle nose 1 lifting surface area, thus reach the object of uniform stressed.Arranging of inner ring cylindrical roller 7 is mainly considered from the angle obtaining good uniform stressed effect and cross bag assembly model size, the design of the present embodiment is mainly suitable for small-sized cross bag assembly, therefore, in the present embodiment, inner ring cylindrical roller 7 arranges 1 row along the axis of cross axle spindle nose 1.Another fermentation; after cross axle spindle nose 1 offers cylinder shape groove; rigidity reduces; rotate the object that can be reached further uniform stressed in loading process by the micro-deformation of cross axle spindle nose 1; weaken linear displacement increase further; avoid cross axle local pressure excessive, the localized crush caused or fatigue ruption, further increase the cross bag life-span.
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.
The more important thing is, because the present embodiment sets up one deck inner ring cylindrical roller 7 in cross axle spindle nose 1 interior grooves and bearing housing end cap 5 male cooperation place.Require higher to cross axle spindle nose 1, dimensional fits between bearing housing end cap 5 and Universal joint fork 8 in assembly process.In order to reduce assembling difficulty, referring to Fig. 4, the fitting surface 9 of the present embodiment milling spindle bearing sleeve end cap 5 and Universal joint fork 8 is inclined-plane, this inclined-plane near one end of cross axle spindle nose 1 higher than the one end away from cross axle spindle nose 1, this design can not only ensure bearing housing end cap 5 projection and cross axle spindle nose 1 interior grooves accurate fit, and bearing housing end cap 5 and Universal joint fork 8 coordinate more tight, can also play the effect of sharing the peripheral force that cross axle spindle nose 1 interior grooves is transmitted by cylindrical roller.
Embodiment 2
Referring to Fig. 3, the cross bag assembly structure that a kind of even spindle nose of the present embodiment is stressed, basic with embodiment 1, its difference is: the present embodiment is provided with cross axis faces pad 4 and end face bearing 41 between bearing housing end cap 5 and cross axle spindle nose 1, cross axis faces pad 4 adopts copper material, be mainly used in adjustment and improve the stressed of inner ring cylindrical roller 7, stronger 41, the end face bearing of rigidity is for adjusting and improving the stressed of cross axle spindle nose 1 and outer ring cylindrical roller 31, inner ring cylindrical roller 7 is provided with 2 rows along the axis of cross axle spindle nose 1, between outer ring cylindrical roller 31 and cross axle spindle nose 1, angle is α, according to specification and the structure of cross axle, α gets 1 '.
Embodiment 3
The cross bag assembly structure that a kind of even spindle nose of the present embodiment is stressed, basic with embodiment 1, its difference is: in the present embodiment, cross axis faces pad 4 adopts aluminum alloy material, inner ring cylindrical roller 7 is provided with 3 rows along the axis of cross axle spindle nose 1, between outer ring cylindrical roller 31 and cross axle spindle nose 1, angle is α, according to specification and the structure of cross axle, α gets 9 '.
The cross bag assembly structure that a kind of even spindle nose described in embodiment 1 ~ 3 is stressed, improves simple, rationally, assembling difficulty and reforming cost low, 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 (6)
1. the cross bag assembly structure that an even spindle nose is stressed, comprise cross axle spindle nose (1), bearing housing (2), cylindrical roller and bearing housing end cap (5), 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 Universal joint fork (8) by socket head screw (6); Described bearing housing end cap (5) middle part is provided with cylindrical protrusions, accordingly, cross axle spindle nose (1) is provided with cylinder shape groove, be provided with outer ring cylindrical roller (31) between cross axle spindle nose (1) and bearing housing (2), cross axle spindle nose (1) interior grooves and bearing housing end cap (5) male cooperation place are provided with inner ring cylindrical roller (7); 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. the cross bag assembly structure that a kind of even spindle nose according to claim 1 is stressed, is characterized in that: between outer ring cylindrical roller (31) and cross axle spindle nose (1), the angular range of angle α is 1 ' ~ 9 '.
3. the cross bag assembly structure that a kind of even spindle nose according to claim 2 is stressed, 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.
4. the cross bag assembly structure that a kind of even spindle nose according to claim 2 is stressed, 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) and end face bearing (41), the material of described cross axis faces pad (4) adopts nylon, copper or aluminum alloy.
5. the cross bag assembly structure that a kind of even spindle nose according to any one of Claims 1 to 4 is stressed, is characterized in that: described inner ring cylindrical roller (7) is provided with 1 ~ 3 row along the axis of cross axle spindle nose (1).
6. the cross bag assembly structure that a kind of even spindle nose according to claim 5 is stressed, is characterized in that: the fitting surface (9) of bearing housing end cap (5) and Universal joint fork (8) is inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521019976.XU CN205154950U (en) | 2015-12-08 | 2015-12-08 | Cross package assembly structure of even spindle nose atress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521019976.XU CN205154950U (en) | 2015-12-08 | 2015-12-08 | Cross package assembly structure of even spindle nose atress |
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| Publication Number | Publication Date |
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| CN205154950U true CN205154950U (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521019976.XU Expired - Fee Related CN205154950U (en) | 2015-12-08 | 2015-12-08 | Cross package assembly structure of even spindle nose atress |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299072A (en) * | 2015-12-08 | 2016-02-03 | 马鞍山市华美联轴器有限公司 | Cross universal joint assembly structure making stress on joint heads even |
-
2015
- 2015-12-08 CN CN201521019976.XU patent/CN205154950U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299072A (en) * | 2015-12-08 | 2016-02-03 | 马鞍山市华美联轴器有限公司 | Cross universal joint assembly structure making stress on joint heads even |
| CN105299072B (en) * | 2015-12-08 | 2018-12-14 | 马鞍山市华美联轴器有限公司 | A kind of cross bag assembly structure of uniform spindle nose stress |
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Legal Events
| Date | Code | Title | Description |
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| 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 |