CN203702964U - Front axle hydro-pneumatic suspension device for electric wheel dump truck - Google Patents
Front axle hydro-pneumatic suspension device for electric wheel dump truck Download PDFInfo
- Publication number
- CN203702964U CN203702964U CN201320772054.0U CN201320772054U CN203702964U CN 203702964 U CN203702964 U CN 203702964U CN 201320772054 U CN201320772054 U CN 201320772054U CN 203702964 U CN203702964 U CN 203702964U
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- China
- Prior art keywords
- front axle
- suspension device
- cylinder barrel
- piston assembly
- pneumatic suspension
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- Withdrawn - After Issue
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Abstract
The utility model discloses a front axle hydro-pneumatic suspension device for an electric wheel dump truck. The front axle hydro-pneumatic suspension device comprises a cylinder barrel welding mechanism, an end cover, a rod cylinder, a piston assembly, a bearing seat and a sealing mechanism, wherein the cylinder barrel welding mechanism comprises a cylinder barrel, an upper bracket and a lower bracket; the upper bracket and the lower bracket are respectively welded at the upper part and the lower part of the cylinder barrel; the end cover is fixed on the upper end face of the cylinder barrel; the bearing seat is arranged on the lower end face of the cylinder barrel, the piston assembly is arranged on the upper end face of the rod cylinder, the sealing mechanism is arranged on the inner side of the bearing seat, a space between the top of the piston assembly and the bottom of the end cover is filled with hydraulic oil, nitrogen is filled above the hydraulic oil; an annular space is encircled by the bottom of the piston assembly, the top of the bearing seat, the inner wall of the cylinder barrel and the outer wall of the rod cylinder, and also full of the hydraulic oil; a hydraulic oil channel is opened on the rod cylinder, and the annular space is communicated with the upper space of the piston assembly through the hydraulic oil channel. The front axle hydro-pneumatic suspension device disclosed by the utility model has good sealing effect, and the rod cylinder can bear a larger radial force, so that the reduction of the abrasion of the piston assembly and the bearing seat can be facilitated, and the service life is prolonged.
Description
Technical field
The utility model relates to a kind of electric power wheel self-discharging vehicle front axle hydro-pneumatic suspension device, especially relates to a kind of electric power wheel self-discharging vehicle that is applicable to large surface mine front axle hydro-pneumatic suspension device.
background technique
At present, existing electric power wheel self-discharging vehicle comprises the cylinder barrel that is welded, end cap, bar cylinder, piston assembly, supporting base, sealing configuration with front axle hydro-pneumatic suspension device.Wherein, described piston assembly is formed in steel bushing outer ring through interference fit hot jacket by guide copper sleeve; Described supporting base is installed on steel bushing inner ring through interference fit by guide copper sleeve; Dust sealing, primary seal that described sealing configuration is arranged from top to bottom by twice form.
The front axle hydro-pneumatic suspension device of said structure has following shortcoming: the guide copper sleeve of piston assembly and supporting base is in the time of bearing radial force, because being subject to rigid structure restriction, discontinuity, copper sheathing wearing and tearing in supporting base lower end are very fast, piston assembly and supporting base bear greater impact load, affect front axle hydro-pneumatic suspension working life.Because front axle hydro-pneumatic suspension conventional construction does not possess the structure that anti-stopping bar cylinder excessively stretches, therefore, in the time of the hollow running on road, resilience Amplitude Ratio is larger, front axle wheel easily occurs and subside.In addition, because its sealing configuration only has primary seal one, sealing effect is poor, and bar cylinder is in the time of frequent fore and aft motion, and oil impregnate, oil leakage phenomenon are serious.
model utility content
The technical problems to be solved in the utility model is, overcomes the above-mentioned defect that prior art exists, and provides a kind of good sealing effect, the electric power wheel self-discharging vehicle of long service life front axle hydro-pneumatic suspension device.
The utility model solves the technological scheme that its technical problem adopts:
A kind of electric power wheel self-discharging vehicle front axle hydro-pneumatic suspension device, comprise cylinder barrel be welded mechanism, end cap, bar cylinder, piston assembly, supporting base, sealing mechanism, the described cylinder barrel mechanism that is welded is made up of cylinder barrel, upper bracket and undersetting, and upper bracket and undersetting are welded in respectively cylinder barrel upper and lower; Upper bracket and undersetting are all secured by bolts on the vehicle frame of electric power wheel self-discharging vehicle; Described end cap is fixed on the upper-end surface of cylinder barrel; Supporting base is located at cylinder barrel lower end surface, and bar cylinder upper-end surface is located in described piston assembly, and described sealing mechanism is located at the inner side of supporting base, and hydraulic oil is equipped with in the space between piston assembly top and end cap bottom, and described hydraulic oil top is filled with nitrogen; Piston assembly bottom, supporting base top, inner wall of cylinder and bar drum outer wall surround an annular space, are also full of hydraulic oil in described annular space; On bar cylinder, have hydraulic oil channel, described annular space is communicated with piston assembly upper space by hydraulic oil channel.
Further, described piston assembly is made up of piston and at least two piston abrasion-proof rings, has at least two piston abrasion-proof ring mounting grooves on the outer ring of piston assembly, and piston abrasion-proof ring is embedded in piston abrasion-proof ring mounting groove; Piston assembly is secured by bolts in bar cylinder upper-end surface.
Further, also have at least two supporting wear ring mounting grooves on the inner ring of described supporting base, supporting wear ring is embedded in the installation of supporting wear ring; Supporting base is secured by bolts in cylinder barrel lower end surface.
Further, described sealing mechanism is made up of dustproof seal ring, lip main seal ring, combination main seal ring; On the inner ring of described supporting base, have sealing mechanism mounting groove, dustproof seal ring, lip main seal ring, combination main seal ring are loaded in sealing mechanism mounting groove from bottom to up.
Further, preferably two of the quantity of described supporting wear ring, one of them supporting wear ring is located between dustproof seal ring and lip main seal ring, and another supporting wear ring is located at combination main seal ring top.
Further, the upper end of described bar cylinder is circular cylinder, and the lower end of bar cylinder is cone.Bar cylinder lower end is placed on the knuckle of front-wheel of electric power wheel self-discharging vehicle.Front axle hydro-pneumatic suspension device and front wheel form an independent suspension mechanism, have replaced propons, and bar cylinder plays again the effect of pivot stud simultaneously, is beneficial to bear lateral pressure.
Further, the quantity of described hydraulic oil channel is preferably eight, and the steel ball of one-way valve effect has wherein been housed in four hydraulic oil channels.In the time that bar cylinder shrinks, eight hydraulic oil channels are all unimpeded; In the time that bar cylinder stretches, four hydraulic oil channels that steel ball is housed are closed, and other four hydraulic oil channels are unimpeded.
Further, the middle part inner headed face of described cylinder barrel is provided with an annular boss.The upper and lower of described annular boss all has oilhole, is beneficial to the discharge of hydraulic oil and residual gas.
Further, on described supporting base, also have oilhole, be beneficial to play lubrication from outer bound pair supporting wear ring.
Further, the upper-end surface of described end cap is provided with injecting oil and gas valve, pressure transducer and oil hole.
Further, described piston abrasion-proof ring and supporting wear ring are made by polymer composites such as resin phenolic aldehyde folder cloth or injection glass fibres.
In the utility model, support installing side by side up and down of wear ring and multiple tracks piston abrasion-proof ring, good sealing effect by multiple tracks; And in the time of bar cylinder bearing radial force, multiple tracks wear ring can make bar cylinder supporting plane stressed even, is beneficial to bar cylinder and can bears larger radial force, is conducive to reduce the wearing and tearing of piston assembly and supporting base, extends the working life of front axle hydro-pneumatic suspension device.
Brief description of the drawings
Fig. 1 is the structural representation of electric power wheel self-discharging vehicle front axle hydro-pneumatic suspension device;
Fig. 2 is the I place structure for amplifying schematic diagram of Fig. 1 electric power wheel self-discharging vehicle front axle hydro-pneumatic suspension device;
Fig. 3 is the II place structure for amplifying schematic diagram of Fig. 1 electric power wheel self-discharging vehicle front axle hydro-pneumatic suspension device.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
With reference to Fig. 1, the present embodiment comprises cylinder barrel be welded mechanism, end cap 4, bar cylinder 5, piston assembly, supporting base 8, sealing mechanism, the described cylinder barrel mechanism that is welded is made up of cylinder barrel 1, upper bracket 2 and undersetting 3, and upper bracket 2 and undersetting 3 are welded in respectively cylinder barrel 1 upper and lower; Upper bracket 2 and undersetting 3 are all fixed on the vehicle frame of electric power wheel self-discharging vehicle by bolt, flat key 9, flat key 10, flat key 11; Described end cap 4 is fixed on the upper-end surface of cylinder barrel 1 by bolt 12; Supporting base 8 is located at cylinder barrel 1 lower end surface, and bar cylinder 5 upper-end surfaces are located in described piston assembly, and described sealing mechanism is located at the inner side of supporting base 8; Hydraulic oil is equipped with in space between piston assembly top and end cap 4 bottoms, and described hydraulic oil top is filled with nitrogen; Piston assembly bottom, supporting base 8 tops, cylinder barrel 1 inwall and bar cylinder 5 outer walls surround an annular space 13, in described annular space 13, are also full of hydraulic oil; On bar cylinder 5, have hydraulic oil channel, described annular space is communicated with piston assembly upper space by hydraulic oil channel.
Described piston assembly is made up of piston 6 and three piston abrasion-proof rings 7 that can play leading role simultaneously, has two piston abrasion-proof ring mounting grooves on the outer ring of piston, and piston abrasion-proof ring 7 is embedded in the installation of piston abrasion-proof ring; Piston assembly is secured by bolts in bar cylinder 5 upper-end surfaces.
On the inner ring of described supporting base 8, also have two supporting wear ring mounting grooves, two supporting wear rings 14 are embedded in the installation of supporting wear ring; Supporting base 8 is secured by bolts in cylinder barrel 1 lower end surface.
With reference to Fig. 2, Fig. 3, described sealing mechanism is made up of dustproof seal ring 15, lip main seal ring 16, combination main seal ring 17; On the inner ring of described supporting base 8, have sealing mechanism mounting groove, dustproof seal ring 15, lip main seal ring 16, combination main seal ring 17 are loaded in sealing mechanism mounting groove from bottom to up.
Two supporting wear rings 14, one of them supporting wear ring 14 is located between dustproof seal ring 15 and lip main seal ring 16, and another supports wear-resisting 14 and is located on combination main seal ring 17 tops.
The upper end of described bar cylinder 5 is circular cylinder, and the lower end of bar cylinder 5 is cone.Bar cylinder 5 lower ends are placed on the knuckle of front-wheel of electric power wheel self-discharging vehicle.Front axle hydro-pneumatic suspension device and front wheel form an independent suspension mechanism, have replaced propons, and bar cylinder 5 plays again the effect of pivot stud simultaneously, is beneficial to bear lateral pressure.
The quantity of described hydraulic oil channel is eight, and the steel ball 18 of one-way valve effect has wherein been housed in four liquid 0 pressure oil passages.In the time that bar cylinder 5 shrinks, eight hydraulic oil channels are all unimpeded; In the time that bar cylinder 5 stretches, four hydraulic oil channels that steel ball is housed are closed, and other four hydraulic oil channels are unimpeded.
The middle part inner headed face of described cylinder barrel 1 is provided with an annular boss 19.The upper and lower of described annular boss 19 all has oilhole, is beneficial to the discharge of hydraulic oil and residual gas; When described oilhole does not use, can block by plug screw.
On described supporting base 8, also have oilhole, be beneficial to play lubrication from outer bound pair supporting wear ring.
The upper-end surface of described end cap 4 is provided with injecting oil and gas valve 21, pressure transducer 22 and oil hole, when oil hole does not use, can block by another plug screw 23.
Described piston abrasion-proof ring 7 and supporting wear ring 14 are made by polymer composites such as resin phenolic aldehyde folder cloth or injection glass fibres.
Described piston 6 is made up of steel bushing, and described supporting base 8 is also made up of steel bushing.
Claims (10)
1. an electric power wheel self-discharging vehicle front axle hydro-pneumatic suspension device, comprise cylinder barrel be welded mechanism, end cap, bar cylinder, piston assembly, supporting base, sealing mechanism, the described cylinder barrel mechanism that is welded is made up of cylinder barrel, upper bracket and undersetting, and upper bracket and undersetting are welded in respectively cylinder barrel upper and lower; Upper bracket and undersetting are all secured by bolts on the vehicle frame of electric power wheel self-discharging vehicle; Described end cap is fixed on the upper-end surface of cylinder barrel; Supporting base is located at the lower end surface of cylinder barrel, it is characterized in that, the upper-end surface of bar cylinder is located in described piston assembly, and described sealing mechanism is located at the inner side of supporting base, and hydraulic oil is equipped with in the space between piston assembly top and end cap bottom, and described hydraulic oil top is filled with nitrogen; Piston assembly bottom, supporting base top, the inwall of cylinder barrel and the outer wall of bar cylinder surround an annular space, are also full of hydraulic oil in described annular space; On bar cylinder, have hydraulic oil channel, described annular space is communicated with piston assembly upper space by hydraulic oil channel.
2. electric power wheel self-discharging vehicle according to claim 1 front axle hydro-pneumatic suspension device, is characterized in that, the upper end of described bar cylinder is circular cylinder, and the lower end of bar cylinder is cone.
3. electric power wheel self-discharging vehicle according to claim 1 and 2 front axle hydro-pneumatic suspension device, it is characterized in that, described piston assembly is made up of piston and at least two piston abrasion-proof rings, on the outer ring of piston assembly, have at least two piston abrasion-proof ring mounting grooves, piston abrasion-proof ring is embedded in piston abrasion-proof ring mounting groove; Piston assembly is secured by bolts in bar cylinder upper-end surface.
4. electric power wheel self-discharging vehicle according to claim 1 and 2 front axle hydro-pneumatic suspension device, is characterized in that, also has at least two supporting wear ring mounting grooves on the inner ring of described supporting base, and supporting wear ring is embedded in supporting wear ring mounting groove; Supporting base is secured by bolts in cylinder barrel lower end surface.
5. electric power wheel self-discharging vehicle according to claim 4 front axle hydro-pneumatic suspension device, is characterized in that, described sealing mechanism is made up of dustproof seal ring, lip main seal ring, combination main seal ring; On the inner ring of described supporting base, have sealing mechanism mounting groove, dustproof seal ring, lip main seal ring, combination main seal ring are loaded in sealing mechanism mounting groove from bottom to up.
6. electric power wheel self-discharging vehicle according to claim 5 front axle hydro-pneumatic suspension device, it is characterized in that, the quantity of described supporting wear ring is two, and one of them supporting wear ring is located between dustproof seal ring and lip main seal ring, and another supporting wear ring is located at combination main seal ring top.
7. electric power wheel self-discharging vehicle according to claim 1 and 2 front axle hydro-pneumatic suspension device, is characterized in that, the quantity of described hydraulic oil channel is eight, and the steel ball of one-way valve effect has wherein been housed in four hydraulic oil channels.
8. electric power wheel self-discharging vehicle according to claim 4 front axle hydro-pneumatic suspension device, is characterized in that, the middle part inner headed face of described cylinder barrel is provided with an annular boss; The upper and lower of described annular boss all has oilhole; On described supporting base, also have oilhole.
9. electric power wheel self-discharging vehicle according to claim 3 front axle hydro-pneumatic suspension device, is characterized in that, described piston abrasion-proof ring is made up of resin phenolic aldehyde folder cloth or injection glass fibre.
10. electric power wheel self-discharging vehicle according to claim 4 front axle hydro-pneumatic suspension device, is characterized in that, described supporting wear ring is made by resin phenolic aldehyde folder cloth or injection glass fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320772054.0U CN203702964U (en) | 2013-12-02 | 2013-12-02 | Front axle hydro-pneumatic suspension device for electric wheel dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320772054.0U CN203702964U (en) | 2013-12-02 | 2013-12-02 | Front axle hydro-pneumatic suspension device for electric wheel dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702964U true CN203702964U (en) | 2014-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320772054.0U Withdrawn - After Issue CN203702964U (en) | 2013-12-02 | 2013-12-02 | Front axle hydro-pneumatic suspension device for electric wheel dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644236A (en) * | 2013-12-02 | 2014-03-19 | 湘电重型装备有限公司 | Front axle oil-gas suspension device for electric wheel dump truck |
-
2013
- 2013-12-02 CN CN201320772054.0U patent/CN203702964U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644236A (en) * | 2013-12-02 | 2014-03-19 | 湘电重型装备有限公司 | Front axle oil-gas suspension device for electric wheel dump truck |
| CN103644236B (en) * | 2013-12-02 | 2015-12-23 | 湘电重型装备有限公司 | A kind of electric power wheel self-discharging vehicle front axle hydro-pneumatic suspension device |
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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: 20140709 Effective date of abandoning: 20151223 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |