CN202745102U - Engineering machine and hinge device thereof - Google Patents
Engineering machine and hinge device thereof Download PDFInfo
- Publication number
- CN202745102U CN202745102U CN201220482806.5U CN201220482806U CN202745102U CN 202745102 U CN202745102 U CN 202745102U CN 201220482806 U CN201220482806 U CN 201220482806U CN 202745102 U CN202745102 U CN 202745102U
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- China
- Prior art keywords
- installing hole
- hinge
- protective sleeve
- hinge means
- bearing pin
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Abstract
The utility model discloses a hinge device which comprises a hinge body and a rotating body, wherein the hinge body is provided with an installing hole, and the rotating body is inserted in the installing hole and can rotate in the installing hole. The hinge device also comprises a protective jacket and the protective jacket is arranged between the installing hole and the rotating body. Because the protective jacket is arranged between the installing hole and the rotating body, namely, the rotating body is in direct contact with the internal surface of the protective jacket, the pressure on the installing hole from a hinge at an overload is borne by the protective jacket, and a load is uniformly distributed on the internal surface of the installing hole after passing through the protective jacket, so that in the process of moving, the rotating body abrades the internal surface of the protective jacket, thereby avoiding the abrasion on the installing hole of the hinge body when the hinge is under overload or eccentric load. The utility model also discloses an engineering machine comprising the hinge device.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to the hinge means on a kind of engineering machinery.In addition, the utility model also relates to a kind of engineering machinery that comprises above-mentioned hinge means.
Background technology
Along with the fast development of China's economic construction, various major workss are on the increase, and market is also more and more stronger for the demand of engineering machinery.
Some large-scale engineering machinery often are provided with hinge means, rear end such as a kind of earth mover frame, be provided with the hinge bodies that ridge buster oil cylinder bearing pin is installed, be provided with installing hole on this hinge bodies, the oil cylinder bearing pin is packed into and is formed hinge arrangement behind this installing hole, be that the oil cylinder bearing pin can freely rotate in the installing hole on hinge bodies, to satisfy engineering demand.In real work, the oil cylinder bearing pin can cause wearing and tearing to the installing hole of hinge bodies inevitably, under the perfect condition, these wearing and tearing should be uniform, if but when the hinge place is subject to heavy load or lays particular stress on load, not only can aggravate the wearing and tearing to the body installing hole, along with the growth of working time, the installing hole of this hinge bodies tends to be worn down to ellipse, and more serious causing can't work.For common engineering machinery, the hinge bodies that is provided with installing hole is generally large component, not only has hinge arrangement, other vitals also are installed, after if the installing hole of this hinge bodies is worn inefficacy, not only repair difficulty, and rehabilitation cost is very high, but directly this hinge bodies is scrapped and uneconomical.
In view of this, how designing a kind of hinge means, can reduce the wearing and tearing to its hinge bodies, prolong the application life of this hinge means, is the present technical issues that need to address of those skilled in the art.
The utility model content
The purpose of this utility model provides a kind of hinge means, and this hinge means can reduce the wearing and tearing to its hinge bodies when work, thereby prolongs the application life of this hinge means.Another purpose of the present utility model provides a kind of engineering machinery that comprises above-mentioned hinge means.
For solving the problems of the technologies described above, the utility model provides a kind of hinge means, comprises hinge bodies and rotor, and described hinge bodies has installing hole, and described rotor is inserted in the described installing hole, and can rotate in described installing hole; Also comprise protective sleeve, described protective sleeve is arranged between described installing hole and the described rotor.
Preferably, an end of described protective sleeve is provided with step, and the step surface of described step cooperates with the step end face of described installing hole.
Preferably, the interior bore edges of described protective sleeve has fillet structure.
Preferably, described protective sleeve and described hinge bodies interference fit.
Preferably, described protective sleeve is cast member or machined piece.
The utility model also provides a kind of engineering machinery, comprises above-mentioned each described hinge means.
Preferably, described engineering machinery is specially bulldozer.
Relative above-mentioned background technology, hinge means provided by the utility model comprises hinge bodies and rotor, and described hinge bodies has installing hole, and described rotor is inserted in the described installing hole, and can rotate in described installing hole; Also comprise protective sleeve, described protective sleeve is arranged between described installing hole and the described rotor.Owing between the installing hole of hinge bodies and rotor, be provided with protective sleeve; be that rotor directly contacts with the inner surface of described protective sleeve; heavy duty place hinge is born by protective sleeve the pressure of the installing hole of hinge bodies; load is evenly distributed on the inner surface of described installing hole through behind the protective sleeve; in motion process; rotor causes wearing and tearing to the inner surface of protective sleeve, when having avoided the hinge place to be subject to heavy duty or unbalance loading to the wearing and tearing of hinge bodies installing hole.Because the relative hinge bodies of protective sleeve is widget, when protective sleeve is impaired seriously can't work the time, only needs change it and get final product, avoided keeping in repair the expense of hinge bodies, saved maintenance cost.
A kind of preferred embodiment in; protective sleeve one end that the utility model provides is provided with ledge structure, and during installation, the step surface of its step cooperates with the step end face of the installing hole of hinge bodies; can further protect the step end face of installing hole, avoid it to be worn.
In another preferred embodiment, the interior bore edges of the protective sleeve that the utility model provides has fillet structure, can play guide effect when rotor is installed, and guarantees the axiality of rotor and protective sleeve.This fillet structure scratches rotor when in addition, also can prevent installation or motion.
Description of drawings
Fig. 1 is the structural representation of a kind of specific embodiment of hinge means provided by the utility model;
Fig. 2 is the exploded perspective view of hinge means shown in Fig. 1;
Fig. 3 is the structural representation of a kind of specific embodiment of protective sleeve shown in Fig. 1.
The specific embodiment
Core of the present utility model provides a kind of hinge means, and this hinge means can reduce the wearing and tearing to its hinge bodies when work, thereby prolongs the application life of this hinge means.Another core of the present utility model provides a kind of engineering machinery that comprises above-mentioned hinge means.
Be without loss of generality, the hinge means that the below installs ridge buster oil cylinder bearing pin take a kind of earth mover frame rear end is as example, and the utility model is described in further detail by reference to the accompanying drawings.
Please refer to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is the structural representation of a kind of specific embodiment of hinge means provided by the utility model; Fig. 2 is the exploded perspective view of hinge means shown in Fig. 1; Fig. 3 is the structural representation of a kind of specific embodiment of protective sleeve shown in Fig. 1.
In this specific embodiment, hinge means provided by the utility model comprises hinge bodies, and namely the bulldozer frame 1, and this bulldozer frame 1 is provided with four bearing pin installing holes 11.
This hinge means also comprises rotor, and in this embodiment, rotor is oil cylinder bearing pin (not shown).
Be fitted with protective sleeve 2 in the described bearing pin installing hole 11, the outer round surface of described protective sleeve 2 cooperates with the internal circular surfaces of described bearing pin installing hole 11.Described protective sleeve 2 and described bearing pin installing hole 11 interference fit.Wherein, described protective sleeve 2 can be cast member, also can be machined piece.
Described oil cylinder bearing pin is inserted in the described protective sleeve 2, and its outer round surface cooperates with the internal circular surfaces of described protective sleeve 2.Described oil cylinder bearing pin and described protective sleeve 2 matched in clearance can freely be rotated in that described protective sleeve 2 is interior to guarantee described oil cylinder bearing pin.
Owing between the bearing pin installing hole 11 of oil cylinder bearing pin and bulldozer frame 1, be provided with protective sleeve 2; the oil cylinder bearing pin directly contacts with protective sleeve 2 during work; when being subject to heavy duty; hinge place script is born by the protective sleeves 2 that are arranged in the bearing pin installing hole 11 pressure of the bearing pin installing hole 11 of bulldozer frame 1, and load is evenly distributed on the internal circular surfaces of bearing pin installing hole 11 through behind the protective sleeve 2.Even load increases suddenly and causes stressed increase or in the situation of partial load; because the oil cylinder bearing pin contacts with protective sleeve 2; be protected the protective effect of cover 2; the bearing pin installing hole 11 of bulldozer frame 1 can not be worn, thus not can because of heavy duty or unbalance loading to the wearing and tearing of damaging property of bearing pin installing hole.
Compared with prior art; the utility model is owing to be provided with protective sleeve 2 between the bearing pin installing hole 11 of bulldozer frame 1 and oil cylinder bearing pin; thereby the oil cylinder bearing pin is transferred on the protective sleeve 2 wearing and tearing of bearing pin installing hole 11; after work a period of time, if protective sleeve 2 is impaired serious, only need to change protective sleeve 2; can be to bulldozer frame 1 injury; thereby avoided the expensive expense because of maintenance bulldozer frame 1, saved maintenance cost, prolonged the application life of soil-shifting frame 1.
Can make further improvement to above-mentioned hinge means.
Further, an end of described protective sleeve 2 is provided with step 21, and the step surface 211 of described step cooperates with the step end face 111 of described bearing pin installing hole 11.The internal circular surfaces that described protective sleeve 2 not only can comprise described bearing pin installing hole 11 so is set; also can protect the step end face 111 of bearing pin installing hole 11; to the wearing and tearing of bulldozer frame 1, reduce its maintenance cost, and prolong its application life in the further minimizing course of work.
Further, the interior bore edges of described protective sleeve 2 has fillet structure 22, because the setting of fillet structure 22, so that the endoporus edge transition of protective sleeve 2 is level and smooth, when the oil cylinder bearing pin is installed, not only can play guide effect, guarantee the axiality of oil cylinder bearing pin and protective sleeve 2, thereby guarantee the normal operation of hinge; Scratch the oil cylinder bearing pin in the time of also can avoiding installation or motion.
Here need to prove, above-mentioned is take a kind of earth mover frame rear end the explanation that the hinge means of ridge buster oil cylinder bearing pin carries out as example to be installed, in the reality, this hinge means is not limited to described above, can be applied in the Other Engineering machinery with similar structures.
Except above-mentioned hinge means, the utility model also provides a kind of engineering machinery that comprises above-mentioned hinge means, and other structures of this project machinery can with reference to prior art, repeat no more here.Because above-mentioned hinge means has above-mentioned effect, also has above-mentioned effect so comprise the engineering machinery of this hinge means, also repeats no more here.
Particularly, described engineering machinery is specially bulldozer.
More than engineering machinery provided by the utility model and hinge means thereof are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (7)
1. a hinge means comprises hinge bodies and rotor, and described hinge bodies has installing hole, and described rotor is inserted in the described installing hole, and can rotate in described installing hole; It is characterized in that, also comprise protective sleeve, described protective sleeve is arranged between described installing hole and the described rotor.
2. hinge means as claimed in claim 1 is characterized in that, an end of described protective sleeve is provided with step, and the step surface of described step cooperates with the step end face of described installing hole.
3. hinge means as claimed in claim 1 is characterized in that, the interior bore edges of described protective sleeve has fillet structure.
4. such as each described hinge means of claims 1 to 3, it is characterized in that described protective sleeve and described hinge bodies interference fit.
5. such as each described hinge means of claims 1 to 3, it is characterized in that described protective sleeve is cast member or machined piece.
6. an engineering machinery is characterized in that, comprises such as each described hinge means of claim 1 to 5.
7. engineering machinery as claimed in claim 6 is characterized in that, described engineering machinery is specially bulldozer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220482806.5U CN202745102U (en) | 2012-09-20 | 2012-09-20 | Engineering machine and hinge device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220482806.5U CN202745102U (en) | 2012-09-20 | 2012-09-20 | Engineering machine and hinge device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745102U true CN202745102U (en) | 2013-02-20 |
Family
ID=47704523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220482806.5U Expired - Lifetime CN202745102U (en) | 2012-09-20 | 2012-09-20 | Engineering machine and hinge device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745102U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113874590A (en) * | 2019-05-16 | 2021-12-31 | 世嘉智尼工业株式会社 | Hinge device |
-
2012
- 2012-09-20 CN CN201220482806.5U patent/CN202745102U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113874590A (en) * | 2019-05-16 | 2021-12-31 | 世嘉智尼工业株式会社 | Hinge device |
| CN113874590B (en) * | 2019-05-16 | 2022-10-14 | 世嘉智尼工业株式会社 | Hinge device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |
|
| CX01 | Expiry of patent term |