CN203601089U - Lifting cylinder shaft assembly of mining dump truck - Google Patents
Lifting cylinder shaft assembly of mining dump truck Download PDFInfo
- Publication number
- CN203601089U CN203601089U CN201320825717.0U CN201320825717U CN203601089U CN 203601089 U CN203601089 U CN 203601089U CN 201320825717 U CN201320825717 U CN 201320825717U CN 203601089 U CN203601089 U CN 203601089U
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- Prior art keywords
- lifting cylinder
- load lifting
- cylinder axle
- gland
- shaft
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Abstract
The utility model provides a lifting cylinder shaft assembly of a mining dump truck. The lifting cylinder shaft assembly of the mining dump truck comprises a lifting cylinder support, a lifting cylinder shaft, an end cover and a gland, wherein the lifting cylinder support is provided with a shaft hole; a shaft shoulder is arranged in the middle of the lifting cylinder shaft; the section, on one side of the shaft shoulder, of the lifting cylinder shaft is installed in the shaft hole of the lifting cylinder support; the end cover is arranged at the end of the section, on the other side of the shaft shoulder, of the lifting cylinder shaft; the gland is axially arranged on the shaft shoulder in a pressing mode and fixed to the lifting cylinder support. The lifting cylinder shaft assembly of the mining dump truck is simple in structure and easy to machine, the lifting cylinder shaft is high in intensity and not prone to damage, axial fixation is stable and reliable, dimensional accuracy and installation accuracy are high, and disassembly, assembly and replacement are easy.
Description
Technical field
The utility model relates to mechanical technique, is specifically related to a kind of quarry tipper load lifting cylinder axle assembly.
Background technology
Quarry tipper is a kind of large-scale non-highway transport vehicle, and it mainly operates in the ground such as surface mine, hydroelectric project, civil engineering, and Major Function is handling ore and the earthwork.Load lifting cylinder is the main working parts of quarry tipper, and it realizes lifting and the falling of container by being arranged on load lifting cylinder axle on vehicle frame, therefore, how to guarantee that the intensity of load lifting cylinder axle and reliability are extremely important.
The load lifting cylinder axle of large-tonnage quarry tipper is usually placed in frame outside, and its one end is connected with chassis side rail, and the other end is connected with load lifting cylinder by plain bearing.Load lifting cylinder aixs cylinder goes out outside vehicle frame, becomes cantilever design, and extension elongation depends on the layout of load lifting cylinder on car load, and depends on the internal diameter of the intensity of selected load lifting cylinder shaft material and the plain bearing of selection with the load lifting cylinder shaft diameter of load lifting cylinder connecting portion.For guaranteeing the intensity of load lifting cylinder axle, load lifting cylinder axle adopts medium carbon alloy steel conventionally; For guaranteeing the reliability of load lifting cylinder bearing, its structure generally adopts casting structure, to prevent that producing stress at the place of being welded to connect of axis hole root concentrates.
In existing quarry tipper, as shown in Figure 1, it comprises end cap 1, load lifting cylinder axle 2, load lifting cylinder bearing 3 and bolt 4 to a kind of structure of load lifting cylinder axle assembly; Wherein, load lifting cylinder axle 2 and load lifting cylinder bearing 3 adopt the form of interference fit, and load lifting cylinder axle 2 utilizes the bolt 4 of end to strain.In this structure, bolt 4 is non-standard structure, needs self-control; And because load lifting cylinder axle assembly needs tie bolt 4, therefore load lifting cylinder bearing 3 need to adopt the casting structure of blind hole form, but it is unfavorable for the sand removal of foundry goods, and sand removal increases great difficulty thoroughly can to the processing of follow-up axis hole; In addition, because load lifting cylinder 6 exists impact in the process of lifting and falling, load lifting cylinder axle 2 is only fixed by shaft hole matching and bolt, the reliability of installing is difficult for guaranteeing, if shaft hole matching tension, load lifting cylinder axle 2 is changed difficulty, if shaft hole matching is excessively loose, does not have again axial restraint and prevents the effect of rotating; Moreover load lifting cylinder bearing 3 shaft hole matching positions are uncovered structure, under the impact effect of load lifting cylinder 6 lifting repeatedly, falling, be prone to the tensile deformation in aperture.
In existing quarry tipper, the another kind of structure of load lifting cylinder axle assembly as shown in Figure 2, it comprises end cap 1, load lifting cylinder axle 2 and load lifting cylinder bearing 3, load lifting cylinder axle 2 and load lifting cylinder bearing 3 adopt the form of free-running fit, and connect by welding manner, thereby produce weld seam 7 between load lifting cylinder axle 2 and load lifting cylinder bearing 3.This structure has been cancelled tie bolt, and adopt medium carbon alloy steel to prepare load lifting cylinder axle 2, although this material intensity is high, but carbon equivalent is also higher simultaneously, the difficulty of therefore it being welded is large, welding process is complicated, and any nonstandard operation all may cause load lifting cylinder axle 2 to crack in welding process; The heat affected zone that this is external produces when load lifting cylinder axle 2 is directly welded can reduce the intensity of load lifting cylinder axle 2, and produces welding stress deformation, thereby reduces dimensional accuracy and the setting accuracy of load lifting cylinder axle 2.
Utility model content
The utility model provides a kind of quarry tipper load lifting cylinder axle assembly, and it is simple in structure, be easy to processing, and the intensity of load lifting cylinder axle is high, axial restraint is reliable and stable, and dimensional accuracy and setting accuracy are high, are easy to disassembling, assembling and replacing.
The quarry tipper load lifting cylinder axle assembly that the utility model provides, comprising:
Load lifting cylinder bearing, it has axis hole;
Load lifting cylinder axle, its middle part is provided with the shaft shoulder, and the load lifting cylinder axle shaft part of the described shaft shoulder one side is loaded in the axis hole of described load lifting cylinder bearing;
End cap, it is located at the end of the load lifting cylinder axle shaft part of described shaft shoulder opposite side;
Gland, it is axially installed with on the described shaft shoulder and is fixed on described load lifting cylinder bearing.
The described quarry tipper load lifting cylinder axle assembly providing according to the utility model, described gland is sheathed on the shaft shoulder of described load lifting cylinder axle and the part load lifting cylinder axle shaft part of described shaft shoulder opposite side, and described gland and described load lifting cylinder axle interference fit.
The described quarry tipper load lifting cylinder axle assembly providing according to the utility model, described load lifting cylinder axle and described load lifting cylinder bearing free-running fit.
The described quarry tipper load lifting cylinder axle assembly providing according to the utility model, described gland is welded on described load lifting cylinder bearing.
The described quarry tipper load lifting cylinder axle assembly providing according to the utility model, described gland is fixedly connected with described load lifting cylinder bearing by bolt.
The described quarry tipper load lifting cylinder axle assembly providing according to the utility model, described load lifting cylinder bearing is mono-block cast, and its axis hole is through hole.
The described quarry tipper load lifting cylinder axle assembly providing according to the utility model, the joint face of described load lifting cylinder axle and described gland is the face of cylinder or circular conical surface.
The described quarry tipper load lifting cylinder axle assembly providing according to the utility model, the joint face of described load lifting cylinder axle and described load lifting cylinder bearing is the face of cylinder or circular conical surface.
The enforcement of the utility model scheme, at least has following advantage:
1, the described quarry tipper load lifting cylinder axle assembly that the utility model provides, its load lifting cylinder bearing is mono-block cast structure, and its axis hole is through-hole form, this structure is easy in foundry goods manufacturing process, carry out sand removal, and is conducive to the chip discharge in follow-up machining process.
2, the described quarry tipper load lifting cylinder axle assembly that the utility model provides has increased gland structure, it makes the pressure at load lifting cylinder bearing shaft hole matching position be born by described gland structure, even if therefore also can not cause damage to load lifting cylinder bearing under the impact effect of the lifting repeatedly of load lifting cylinder, falling, and only need can eliminate easily and impact the tensile deformation that brings matching part because of load lifting cylinder by changing described gland structure.
3, the described quarry tipper load lifting cylinder axle assembly that the utility model provides, its axial compression by described gland structure and radial interference fit are also welded by gland and load lifting cylinder bearing, thereby make the axial restraint of load lifting cylinder axle more reliable, and it has cancelled the intermediate throughholes of load lifting cylinder axle, therefore intensity, the especially anti-shear ability of load lifting cylinder axle have been increased.
4, the described quarry tipper load lifting cylinder axle assembly that the utility model provides, the material that its gland structure adopts is easy to welding with respect to load lifting cylinder axle, not only reduce welding risk, and avoided load lifting cylinder axle directly to weld, therefore can not reduce the intensity of load lifting cylinder axle and due to the distortion causing because of welding stress.
5, the described quarry tipper load lifting cylinder axle assembly that the utility model provides, the form that its load lifting cylinder axle adopts machinery to coordinate is connected with other parts, thereby can guarantee better its dimensional accuracy and setting accuracy, free-running fit between itself and load lifting cylinder bearing, is easy to its dismounting and change in addition.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of quarry tipper load lifting cylinder axle assembly of the prior art;
Fig. 2 is the structural representation of another kind of quarry tipper load lifting cylinder axle assembly of the prior art;
Fig. 3 is the structural representation of quarry tipper load lifting cylinder axle assembly of the present utility model.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 3, the quarry tipper load lifting cylinder axle assembly that the present embodiment provides, comprises end cap 1, load lifting cylinder axle 2, load lifting cylinder bearing 3 and gland 5.
The load lifting cylinder bearing 3 of the present embodiment has axis hole, for fixing load lifting cylinder axle 2.In the present embodiment, load lifting cylinder bearing 3 adopts medium carbon alloy steel casting, is mono-block cast structure, and its axis hole is through hole, is beneficial to the sand removal of casting structure and the chip discharge in follow-up machining process.
The middle part of the load lifting cylinder axle 2 of the present embodiment is provided with the shaft shoulder (a place shown in Fig. 3), and the load lifting cylinder axle shaft part of the shaft shoulder one side is loaded in the axis hole of described load lifting cylinder bearing 3, and described load lifting cylinder axle 2 is the face of cylinder with the joint face of described load lifting cylinder bearing 3; And, load lifting cylinder axle 2 and load lifting cylinder bearing 3 free-running fits, thus can change easily load lifting cylinder axle 2.The end cap 1 of the present embodiment is located at the end of the load lifting cylinder axle shaft part of described shaft shoulder opposite side, and it can be bolted to connection the end at the load lifting cylinder axle shaft part of described shaft shoulder opposite side.In the present embodiment, described load lifting cylinder axle 2 except being the face of cylinder, can also be circular conical surface with the joint face of described load lifting cylinder bearing 3.
The gland 5 of the present embodiment is axially installed with on the described shaft shoulder and is fixed on described load lifting cylinder bearing 3.Particularly, described gland 5 is sheathed on the shaft shoulder of described load lifting cylinder axle 2 and the part load lifting cylinder axle shaft part of described shaft shoulder opposite side, and described gland 5 is the face of cylinder with the joint face of described load lifting cylinder axle 2, and described gland 5 and described load lifting cylinder axle 2 interference fit.In addition, guarantee that by dimension chain the fixed connection place (being the b place in Fig. 3) between gland 5 and load lifting cylinder bearing 3 leaves little gap, and described gland 5 is finally welded on load lifting cylinder bearing 3, and and load lifting cylinder bearing 3 between form weld seam 7.In the present embodiment, described gland 5 by axial compression and radial interference fit and with the welding of load lifting cylinder bearing 3, thereby can make the axial restraint of load lifting cylinder axle 2 more reliable.In addition, the pressure at load lifting cylinder bearing 3 shaft hole matching positions will be born by described gland 5, even if therefore also can not cause damage to load lifting cylinder bearing 3 under the impact effect of the lifting repeatedly of load lifting cylinder 6, falling, and only need to eliminate by changing gland 5 tensile deformation of matching part.The present embodiment is upper outside except gland 5 is welded on to load lifting cylinder bearing 3, can also described gland 5 be fixedly connected on described load lifting cylinder bearing 3 by bolt or other conventional fixed form; In addition described gland 5 can also be circular conical surface with the joint face of described load lifting cylinder axle 2.
In the quarry tipper load lifting cylinder axle assembly of the present embodiment, the intensity of the material that load lifting cylinder axle 2 adopts is the highest, and the intensity of the material that the intensity of the material that described gland 5 adopts adopts lower than described load lifting cylinder axle 2, thereby both guaranteed the intensity of gland 5, be conducive to again the welding of itself and load lifting cylinder bearing 3.The present embodiment gland 5 adopts the material that is easy to welding with respect to load lifting cylinder axle 2, not only can reduce welding risk, can also avoid load lifting cylinder axle 2 directly to weld, therefore there will not be because of the defect such as strength decreased and welding stress deformation to the load lifting cylinder axle 2 load lifting cylinder axle 2 that directly welding causes.
The quarry tipper load lifting cylinder axle assembly of the present embodiment can be assembled and be manufactured by following method: first, respectively end cap 1, load lifting cylinder axle 2, load lifting cylinder bearing 3 and gland 5 are required to fine limit work according to accessory size, wherein load lifting cylinder axle 2 and gland 5 axially and radial dimension make according to tolerance on fit, thereby guarantee its radially large magnitude of interference of shaft hole matching and axial compression; In addition load lifting cylinder axle 2 is made according to tolerance on fit with load lifting cylinder bearing 3, thereby guarantees little free-running fit or free-running fit, is beneficial to the replacing dismounting of load lifting cylinder axle 2; Secondly, in the fitting process of each assembly, first the load lifting cylinder axle shaft part of load lifting cylinder axle 2 shaft shoulder one sides is packed in the axis hole of load lifting cylinder bearing 3, then the mode cover that gland 5 is heated to rear employing hot charging installs on the load lifting cylinder axle 2 part shaft parts of load lifting cylinder axle 2 shaft shoulders and shaft shoulder opposite side, again gland 5 and load lifting cylinder bearing 3 are welded, finally at the fixing end cap 1 in the end of load lifting cylinder axle 2.
In the process of use the present embodiment load lifting cylinder axle assembly, if when load lifting cylinder axle 2 in use occurs destroy and need to change, first 7 planes of the weld seam between gland 5 and load lifting cylinder bearing 3 are opened, and load lifting cylinder axle 2 is taken out in the lump together with gland 5 from the axis hole of load lifting cylinder bearing 3, the load lifting cylinder axle 2 more renewing subsequently and gland 5, then adopt said method to ressemble can again to use.
Finally it should be noted that: above each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of the each embodiment technical scheme of the utility model.
Claims (8)
1. a quarry tipper load lifting cylinder axle assembly, is characterized in that, comprising:
Load lifting cylinder bearing, it has axis hole;
Load lifting cylinder axle, its middle part is provided with the shaft shoulder, and the load lifting cylinder axle shaft part of the described shaft shoulder one side is loaded in the axis hole of described load lifting cylinder bearing;
End cap, it is located at the end of the load lifting cylinder axle shaft part of described shaft shoulder opposite side;
Gland, it is axially installed with on the described shaft shoulder and is fixed on described load lifting cylinder bearing.
2. quarry tipper load lifting cylinder axle assembly according to claim 1, it is characterized in that, described gland is sheathed on the shaft shoulder of described load lifting cylinder axle and the part load lifting cylinder axle shaft part of described shaft shoulder opposite side, and described gland and described load lifting cylinder axle interference fit.
3. quarry tipper load lifting cylinder axle assembly according to claim 1 and 2, is characterized in that, described load lifting cylinder axle and described load lifting cylinder bearing free-running fit.
4. quarry tipper load lifting cylinder axle assembly according to claim 1 and 2, is characterized in that, described gland is welded on described load lifting cylinder bearing.
5. quarry tipper load lifting cylinder axle assembly according to claim 1 and 2, is characterized in that, described gland is fixedly connected with described load lifting cylinder bearing by bolt.
6. quarry tipper load lifting cylinder axle assembly according to claim 1 and 2, is characterized in that, described load lifting cylinder bearing is mono-block cast, and its axis hole is through hole.
7. quarry tipper load lifting cylinder axle assembly according to claim 2, is characterized in that, the joint face of described load lifting cylinder axle and described gland is the face of cylinder or circular conical surface.
8. quarry tipper load lifting cylinder axle assembly according to claim 1 and 2, is characterized in that, the joint face of described load lifting cylinder axle and described load lifting cylinder bearing is the face of cylinder or circular conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825717.0U CN203601089U (en) | 2013-12-13 | 2013-12-13 | Lifting cylinder shaft assembly of mining dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825717.0U CN203601089U (en) | 2013-12-13 | 2013-12-13 | Lifting cylinder shaft assembly of mining dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203601089U true CN203601089U (en) | 2014-05-21 |
Family
ID=50713782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320825717.0U Withdrawn - After Issue CN203601089U (en) | 2013-12-13 | 2013-12-13 | Lifting cylinder shaft assembly of mining dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203601089U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103661063A (en) * | 2013-12-13 | 2014-03-26 | 北京二七轨道交通装备有限责任公司 | Lifting cylinder shaft assembly of mining dump truck |
-
2013
- 2013-12-13 CN CN201320825717.0U patent/CN203601089U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103661063A (en) * | 2013-12-13 | 2014-03-26 | 北京二七轨道交通装备有限责任公司 | Lifting cylinder shaft assembly of mining dump truck |
| CN103661063B (en) * | 2013-12-13 | 2016-05-25 | 中车北京二七机车有限公司 | A kind of quarry tipper load lifting cylinder axle assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140521 Effective date of abandoning: 20160525 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |