CN205173268U - Radially compensate formula bearing cross package assembly structure - Google Patents
Radially compensate formula bearing cross package assembly structure Download PDFInfo
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- CN205173268U CN205173268U CN201521020580.7U CN201521020580U CN205173268U CN 205173268 U CN205173268 U CN 205173268U CN 201521020580 U CN201521020580 U CN 201521020580U CN 205173268 U CN205173268 U CN 205173268U
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- cross
- spindle nose
- cross axle
- bearing housing
- axle spindle
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Abstract
The utility model discloses a radially compensate formula bearing cross package assembly structure belongs to cross package technical field. The utility model discloses a cross axle spindle nose, bearing housing, cylindrical roller, 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, just the bearing housing middle part is provided with cylindrical arch, corresponds ground, the cross axle spindle nose be provided with cylindrical recess, be 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 the bearing housing arch. 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 a kind of radial compensation formula 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:
A kind of radial compensation formula bearing cross bag assembly structure of the present utility model, comprise cross axle spindle nose, bearing housing, 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; And be provided with cylindrical protrusions in the middle part of described bearing housing, accordingly, described 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 male cooperation place are provided with inner ring cylindrical roller.
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 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, described inner ring cylindrical roller is provided with 1 ~ 3 row along the axis of cross axle spindle nose.
3. beneficial effect
The technological scheme adopting the utility model to provide, compared with existing known technology, has following beneficial effect:
(1) a kind of radial compensation formula bearing cross bag assembly structure of the present utility model, 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) a kind of radial compensation formula bearing cross bag assembly structure of the present utility model, it by arranging cylindrical protrusions in the middle part of bearing housing, 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 and bearing housing 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) a kind of radial compensation formula bearing cross bag assembly structure of the present utility model, 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;
Fig. 2 is the structural drawing of radial compensation 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; 31, outer ring cylindrical roller; 4, cross axis faces pad; 5, inner ring cylindrical roller.
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, a kind of radial compensation formula bearing cross bag assembly structure of the present embodiment, comprises cross axle spindle nose 1, bearing housing 2, outer ring cylindrical roller 31, cross axis faces pad 4 and inner ring cylindrical roller 5.Described bearing housing 2 adopts 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.And be provided with cylindrical protrusions in the middle part of described bearing housing 2, accordingly, described cross axle spindle nose 1 is provided with cylinder shape groove, is provided with outer ring cylindrical roller 31 between cross axle spindle nose 1 and bearing housing 2, and cross axle spindle nose 1 interior grooves and bearing housing 2 male cooperation place are provided with inner ring cylindrical roller 5.Cross axis faces pad 4 is provided with between bearing housing 2 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 5, keeps outer ring cylindrical roller 31 and inner ring cylindrical roller 5 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.
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 3 and cross axle spindle nose 1, the angular range of angle α is better 1 ' ~ 9 ', and it is 6 ' that the present embodiment arranges angle α 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 2, in cross axle spindle nose 1, cylinder shape groove is set, and between cylindrical protrusions and cylinder shape groove, set up one deck inner ring cylindrical roller 5 to increase cross axle spindle nose 1 and bearing housing 2 lifting surface area, thus reach the object of uniform stressed.Arranging of inner ring cylindrical roller 5 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 5 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.
Embodiment 2
A kind of radial compensation formula 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 copper material, inner ring cylindrical roller 5 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 that α, α get 1 '.
Embodiment 3
A kind of radial compensation formula 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, inner ring cylindrical roller 5 is provided with 3 rows along the axis of cross axle spindle nose 1, and between outer ring cylindrical roller 31 and cross axle spindle nose 1, angle α is 9 '.
A kind of radial compensation formula bearing cross bag assembly structure described in embodiment 1 ~ 3, 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 (4)
1. a radial compensation formula bearing cross bag assembly structure, comprise cross axle spindle nose (1), bearing housing (2), cylindrical roller, 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); And described bearing housing (2) middle part is provided with cylindrical protrusions, accordingly, described 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 (2) male cooperation place are provided with inner ring cylindrical roller (5).
2. a kind of radial compensation formula bearing cross bag assembly structure according to claim 1, 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. a kind of radial compensation formula bearing cross bag assembly structure according to claim 1 and 2, it is characterized in that: between bearing housing (2) 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. a kind of radial compensation formula bearing cross bag assembly structure according to claim 3, is characterized in that: described inner ring cylindrical roller (5) is provided with 1 ~ 3 row along the axis of cross axle spindle nose (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020580.7U CN205173268U (en) | 2015-12-08 | 2015-12-08 | Radially compensate formula bearing cross package assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020580.7U CN205173268U (en) | 2015-12-08 | 2015-12-08 | Radially compensate formula bearing cross package assembly structure |
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| Publication Number | Publication Date |
|---|---|
| CN205173268U true CN205173268U (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521020580.7U Expired - Fee Related CN205173268U (en) | 2015-12-08 | 2015-12-08 | Radially compensate formula bearing cross package assembly structure |
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| CN (1) | CN205173268U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107627323A (en) * | 2017-10-31 | 2018-01-26 | 东莞市太行机电科技有限公司 | A kind of cross positioning joint for manipulator |
-
2015
- 2015-12-08 CN CN201521020580.7U patent/CN205173268U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107627323A (en) * | 2017-10-31 | 2018-01-26 | 东莞市太行机电科技有限公司 | A kind of cross positioning joint for manipulator |
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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: 20160420 Termination date: 20171208 |
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| CF01 | Termination of patent right due to non-payment of annual fee |