CN201841512U - Leather cup expanding tool - Google Patents
Leather cup expanding tool Download PDFInfo
- Publication number
- CN201841512U CN201841512U CN2010205293862U CN201020529386U CN201841512U CN 201841512 U CN201841512 U CN 201841512U CN 2010205293862 U CN2010205293862 U CN 2010205293862U CN 201020529386 U CN201020529386 U CN 201020529386U CN 201841512 U CN201841512 U CN 201841512U
- Authority
- CN
- China
- Prior art keywords
- leather cup
- curved portions
- expansion tool
- model
- utility
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The utility model provides a leather cup expanding tool which comprises a guide component; the guide component is provided with an arc part; and the shape of the arm part is matched with the maximum outer diameter of a crankshaft of a leather cup to be installed. Due to being provided with the arc part which is matched with the maximum outer diameter of the crankshaft, the leather cup expanding tool can realize gradually-guiding type installation, so as to reduce the maximum elongation of the leather cup, thereby lessening adverse impact on mechanical performances of the leather cup. Moreover, compared with a connecting rod expanding device, the leather cup expanding tool is obviously simplified in structure and is convenient to use.
Description
Technical field
The utility model relates to the engine crankshaft field of sealing technology, is specifically related to be used to install the instrument of engine crankshaft sealing cup.
Background technology
When the sealing cup of engine crankshaft is installed, to the axle journal that sealing cup installs to bent axle be got on, leather cup must be by the maximum cylindrical of bent axle left end, and the diameter of this cylindrical several times of sealing cup internal diameter normally, for example 2.6 times, to realize in other words assembling and to enlarge the internal diameter of sealing cup more than 2.6 times.Realize the smooth expansion of leather cup, need to satisfy the condition of two aspects, the one, leather cup can not rupture in expansion, and the 2nd, enough expansionary forces need be provided.Adopt suitable elastomeric material to make leather cup and can satisfy first requirement, satisfy second and require then suitable extension fixture or the instrument of needs.The leather cup expansion pattern that generally adopts is to utilize linkage to expand at present, assembles after leather cup integral body is expanded to required diameter again.In this case, the percentage elongation of leather cup expansion will be very big, thereby the mechanical performance of leather cup is had considerable influence, and the security in the reality use is had potential adverse effect.And, connecting rod extension fixture complex structure commonly used at present, cost height.Therefore, be desirable to provide and a kind ofly can solve the problems referred to above by improved leather cup expansion tool.
The utility model content
The purpose of this utility model is to provide a kind of leather cup expansion tool, and it can solve above-mentioned the problems of the prior art.
Provide a kind of leather cup expansion tool according to an aspect of the present utility model, it comprises guiding elements, and this guiding elements has curved portions, and the maximum outside diameter of the shape of curved portions and the bent axle of leather cup to be installed is complementary.
Further, the leather cup expansion tool according to an aspect of the utility model also comprises the handle that is connected in guiding elements.
Further, according to the leather cup expansion tool of an aspect of the utility model, wherein, guiding elements also has from the extended connecting portion of curved portions, and connecting portion extends towards the direction away from the curved portions center of circle, and handle links to each other with connecting portion.
Further, according to the leather cup expansion tool of an aspect of the utility model, wherein, connecting portion extends along the radial direction of curved portions.
Further, according to the leather cup expansion tool of an aspect of the utility model, wherein, handle and guiding elements by weld, be threaded, bolted mode links together.
Further, according to the leather cup expansion tool of an aspect of the utility model, wherein, the arc length of curved portions be bent axle maximum outside diameter 1/6.
Further, according to the leather cup expansion tool of an aspect of the utility model, wherein, the cross section of curved portions is " recessed " shape.
Further, according to the leather cup expansion tool of an aspect of the utility model, wherein, the inner surface of curved portions has the groove that extends along the length direction of curved portions.
Further, according to the leather cup expansion tool of an aspect of the utility model, wherein, curved portions has the leading end of rounding.
Further, according to the leather cup expansion tool of an aspect of the utility model, wherein, be connected for arc transition between the curved portions of guiding elements and the connecting portion.
The utlity model has following technique effect:
According to leather cup expansion tool of the present utility model, it has the curved portions that is complementary with the bent axle maximum outside diameter, thereby can realize the installation of guiding gradually, thereby has reduced the maximum elongation amount of leather cup, and then reduces the adverse effect to the leather cup mechanical performance.And the relative connecting rod extension fixture of the structure of leather cup expansion tool of the present utility model is significantly simplified, and is easy to use.
Should be appreciated that above generality is described and the following detailed description is all enumerated and illustrative, purpose is in order to provide further instruction to claimed the utility model.
Description of drawings
Accompanying drawing constitutes the part of this specification, is used to help further understand the utility model.These accompanying drawings illustrate embodiment more of the present utility model, and are used for illustrating principle of the present utility model with specification.Identical in the accompanying drawings parts are represented with identical label.In the accompanying drawing:
Fig. 1 shows the structural representation according to the leather cup expansion tool of the utility model embodiment;
Fig. 2 shows the sectional view according to the guiding elements of the leather cup expansion tool of the utility model embodiment.
The specific embodiment
Below in conjunction with preferred embodiment and with reference to accompanying drawing the specific embodiment of the present utility model is described.
Leather cup expansion tool 10 according to a preferred embodiment of the utility model has been shown, wherein the maximum outside diameter of the circle expression bent axle shown in the chain-dotted line among Fig. 1.As shown in fig. 1, this leather cup expansion tool 10 comprises guiding elements 11, and this guiding elements 11 has curved portions 12, and the maximum outside diameter of the shape of curved portions 12 and the bent axle of leather cup to be installed is complementary.Utilize this leather cup expansion tool 10 of the present utility model, just can leather cup be installed, need not leather cup is opened fully to be installed on the bent axle after the maximum radius of arrival greater than bent axle again in the mode that progressively guides the leather cup distortion.Particularly, utilize the curved portions 12 of above-mentioned guiding elements 11 to realize the installation of guiding, that is, progressively open leather cup, and the part of opening of leather cup is installed on the bent axle by curved portions 12.Curved portions 12 piecemeals guiding leather cup opens, and in the process of progressively opening leather cup the leather cup piecemeal is installed on the bent axle, on the bent axle that the most whole leather cup is installed.
Usually, leather cup all has the elastomeric material with enough ductility and tensile strength to make, as long as apply the enough power of opening in installation process, just on the bent axle that leather cup can be assembled.This leather cup expansion tool 10 of the present utility model, owing to be the leather cup that opens of a part of part, therefore, and the former maximum elongation amount when opening fully of the maximum elongation amount of leather cup during assembling, thus influence reduced to the leather cup mechanical performance.Simultaneously, as long as because the part of leather cup is opened, therefore, the power of opening required during installation also significantly reduces, and is far smaller than the power of opening required when leather cup opened fully.This shows that this leather cup expansion tool of the present utility model can significantly reduce in the installation process influence of leather cup mechanical performance has been improved the security of follow-up use.And leather cup expansion tool of the present utility model can be saved manpower greatly, and easy to operate.In addition, obvious, leather cup expansion tool of the present utility model link-type extension fixture commonly used in the prior art, structure is significantly simplified, can be reduced assembly cost greatly thus.
Further, as shown in Figure 1, for the ease of operation, further save manpower, leather cup expansion tool 10 also comprises the handle 15 that is connected in guiding elements 11.Handle 15 plays the effect of lever, more convenient operating personnel's application of force.
Preferably, guiding elements 11 also has from its curved portions 12 extended connecting portions 13, and this connecting portion 13 extends towards the direction away from curved portions 12 centers of circle, and handle 15 links to each other with connecting portion 13.This structure makes that the operation of leather cup expansion tool 10 is convenient more.
Further, as shown in Figure 1, above-mentioned connecting portion 13 extends along the radial direction (axis normal that is connecting portion 13 is in the tangent line at the intersection point place of the above-mentioned axis of bent axle maximum outside diameter circle) of curved portions 12.This structure provides a kind of force mechanism more easily.Certainly, in other embodiments, connecting portion 13 also can extend along other directions.And connecting portion 13 also can adopt other nonlinear structures.
According to the utility model, the handle 15 of leather cup expansion tool 10 and guiding elements 11 by weld, be threaded, bolted mode links together.And, preferably, be connected for arc transition between guiding elements 11 curved portions 12 and the connecting portion 13.
In an instantiation, the arc length of the curved portions 12 of the guiding elements of leather cup expansion tool 10 of the present utility model be leather cup to be installed bent axle maximum outside diameter 1/6.In this example, assembling during leather cup its maximum elongation amount only be 2.7 times of original circumference, leather cup need be expanded 2.6 times with the situation of finishing installation under, 2.7 times the theoretical value of maximum elongation amount than 2.6 times is only high 0.1 times, elongation is then up to 3 times when adopting the linkage expansion.Simultaneously, need the expansionary force of about 37 kgfs under Kuo Zhang the situation fully, and adopt leather cup expansion tool 10 of the present utility model, then only need the expansionary force of about 19 kgfs.And when the leather cup expansion tool 10 among employing Fig. 1 was installed, the separate unit efficiency of installing software had improved 80%, has saved manpower greatly, has improved operating efficiency, thereby is saving the frock cost.
Preferably, as shown in Figure 2, in one embodiment, the cross section of the curved portions 12 of leather cup expansion tool 10 is " recessed " shape.This cross sectional shape also is in order to be complementary with leather cup to be installed, thereby is convenient to assembly manipulation more.In addition, curved portions 12 has the leading end 14 of rounding, helps curved portions 12 to guide leather cup smoothly on the one hand, makes its expansion, also prevents the damage to leather cup on the other hand.Except above-mentioned curved portions 12 with " recessed " tee section, in other embodiments, curved portions can be configured to its inner surface and have the groove that extends along the length direction of curved portions, groove can design according to the structure at the maximum outside diameter place of bent axle.
Be preferred embodiment of the present utility model only below, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All any modifications of within spirit of the present utility model and principle, being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. a leather cup expansion tool is characterized in that, comprising:
Guiding elements (11) has curved portions (12), and the maximum outside diameter of the shape of described curved portions and the bent axle of leather cup to be installed is complementary.
2. leather cup expansion tool according to claim 1 is characterized in that, also comprises:
Be connected in the handle (15) of described guiding elements.
3. leather cup expansion tool according to claim 2 is characterized in that,
Described guiding elements also has from the extended connecting portion of described curved portions (13), and described connecting portion extends towards the direction away from the described curved portions center of circle, and described handle links to each other with described connecting portion.
4. leather cup expansion tool according to claim 3 is characterized in that, described connecting portion extends along the radial direction of described curved portions.
5. leather cup expansion tool according to claim 2 is characterized in that, described handle and described guiding elements by weld, be threaded, bolted mode links together.
6. according to each described leather cup expansion tool among the claim 1-5, it is characterized in that, the arc length of described curved portions be described bent axle maximum outside diameter 1/6.
7. according to each described leather cup expansion tool among the claim 1-5, it is characterized in that the cross section of described curved portions is " recessed " shape.
8. according to each described leather cup expansion tool among the claim 1-5, it is characterized in that the inner surface of described curved portions has the groove that extends along the length direction of described curved portions.
9. according to each described leather cup expansion tool among the claim 1-5, it is characterized in that described curved portions has the leading end (14) of rounding.
10. according to each described leather cup expansion tool among the claim 1-5, it is characterized in that, be connected for arc transition between the curved portions of described guiding elements and the connecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205293862U CN201841512U (en) | 2010-09-15 | 2010-09-15 | Leather cup expanding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205293862U CN201841512U (en) | 2010-09-15 | 2010-09-15 | Leather cup expanding tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201841512U true CN201841512U (en) | 2011-05-25 |
Family
ID=44036416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205293862U Expired - Lifetime CN201841512U (en) | 2010-09-15 | 2010-09-15 | Leather cup expanding tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201841512U (en) |
-
2010
- 2010-09-15 CN CN2010205293862U patent/CN201841512U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7441732B2 (en) | Supporting collar | |
| CN107044502B (en) | Lining of stabilizer and the stabiliser bar with bushing for having used the lining of stabilizer | |
| CN204283605U (en) | Wastegate device | |
| CN104220770A (en) | Coupling rod | |
| CN202322102U (en) | Flange connection structure and tower crane with same | |
| CN112268067A (en) | Elastic rod end bearing of helicopter rotor damper | |
| CN201841512U (en) | Leather cup expanding tool | |
| US9057455B2 (en) | Crank | |
| CN201346971Y (en) | Control arm lining | |
| CN105365560A (en) | Vehicle two-section type drive shaft assembly with intermediate bearing | |
| CN204547648U (en) | The connecting device of a kind of composite material plate spring and metal hanger | |
| CN202138178U (en) | Novel front bush of control arm | |
| CN101748947B (en) | Car door hinge | |
| JP6200964B2 (en) | Exhaust gas turbocharger | |
| CN201633741U (en) | Hump-shaped rubber joint | |
| CN205877472U (en) | Turbine pressure release pipe | |
| CN104389906A (en) | Rubber bushing | |
| CN201024804Y (en) | Vehicle hinge | |
| CN207416966U (en) | A kind of bushing for electronic strut | |
| CN201736754U (en) | Automobile swinging arm bushing | |
| CN2826046Y (en) | Automobile thrust rod joint assembly | |
| CN201136462Y (en) | Enhanced backing horn | |
| CN101655033A (en) | Unstable connecting rod engine | |
| CN201083160Y (en) | Automobile engine piston | |
| CN220337291U (en) | Split bearing bush and positioning device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110525 |
|
| CX01 | Expiry of patent term |