CN202082192U - Limit component for hydraulic executive device of heavy dump truck - Google Patents
Limit component for hydraulic executive device of heavy dump truck Download PDFInfo
- Publication number
- CN202082192U CN202082192U CN2011201666100U CN201120166610U CN202082192U CN 202082192 U CN202082192 U CN 202082192U CN 2011201666100 U CN2011201666100 U CN 2011201666100U CN 201120166610 U CN201120166610 U CN 201120166610U CN 202082192 U CN202082192 U CN 202082192U
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- steel wires
- limit steel
- cylinder
- hydraulic
- limit
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Abstract
The utility model discloses a limit component for a hydraulic executive device of a heavy dump truck, which comprises a multistage rod executive device consisting of a hydraulic motor and a hydraulic cylinder. The hydraulic cylinder consists of a front end cover, a rear end cover, a cylinder barrel (2), a piston rod (1), a piston assembly, a sealing ring and a buffering device, wherein the piston rod and a cylinder cover are provided with grooves; and bearing rings (3) and limit steel wires (4) are respectively embedded in the grooves. The limit component for the hydraulic executive device of the heavy dump truck is characterized in that the end faces of the bearing rings, which are in contact with the corresponding limit steel wires, are designed into fillets; and the end faces of the limit steel wires, which are in contact with the bearing rings, are designed into chamfers. In the utility model, by improving the structures of the contact surfaces of the bearing guide rings and the limit steel wires, the forced direction between the limit steel wires and the bearing guide rings is changed, the stress between the bearing rings and the limit steel wires is dispersed, the shearing stress is reduced, the service lives of the bearing rings and the limit steel wires are greatly prolonged, and the damage possibilities of the bearing rings and the limit steel wires are reduced.
Description
Technical field
The utility model relates to the hydraulics field, especially a kind of spacing member of heavy card dumping car hydraulic pressure execution device.
Background technique
Hydraulics is to utilize to have press liquid to realize transmission and control, the emerging technology between electronics and machinery, and development in recent years speed is very fast, and applied technical field is more and more, and hydraulic pressure installation has become the requisite device of heavy-duty tipper.Hydraulic transmission mainly is made up of following components, i.e. oil hydraulic pump, hydraulic medium, actuating device, control device and auxiliary device.Actuating device comprises oil hydraulic motor and the oil hydraulic cylinder of being made up of rear end cover, cylinder barrel, piston rod, piston assembly, front cover, for preventing that liquid medium from leaking or leaked to low pressure (LP) cylinder by high-pressure cylinder to oil hydraulic cylinder, at cylinder barrel and end cap, live and all establish seal arrangement between cold and piston rod, piston and cylinder barrel, piston rod and the front cover, be the time bump cylinder cap that prevents that piston from returning to stroke terminal fast, cylinder ends also is provided with damping device.There is following defective in existing load-carrying dumping car hydraulic pressure execution device: the spacing steel wire on the supporting ring on the piston rod and cylinder barrel contravention face does not mutually have chamfering, impact force and shearing force often concentrate on certain part between the two during operation, very easily cause and damage and the stability of destruction cylinder barrel, reduction of service life, the material that simultaneously existing limited ring uses is No. 65 Mn steel, the material that supporting ring uses is QT500, the material that cylinder barrel uses is No. 45 steel, be difficult to adapt to the heavily load request of card, be connected for rigidity between the ball pivot that also has existing hydraulic pressure execution device and the cylinder barrel, bring many inconvenience for the hydraulic system Installation and Debugging, even influence the working stability and the working life of actuating device.
The model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of accessory with material science, rational in infrastructure, can improve the stability of hydraulic pressure execution device and the spacing member that heavily blocks the dumping car hydraulic pressure execution device in working life.The purpose of this utility model realizes by following technical proposals: the utility model comprises the multistage bar actuating device of oil hydraulic motor and oil hydraulic cylinder, said oil hydraulic cylinder is made of forward and backward end cap, cylinder barrel, piston rod, piston assembly and seal ring and damping device, piston rod and cylinder cap are provided with groove, be embedded with supporting ring and spacing steel wire in the groove respectively, it is characterized in that: supporting ring and spacing steel wire contravention face mutually are designed to fillet, and spacing steel wire and supporting ring contravention face mutually are designed to chamfering.
The touch face structural change of the utility model by improving supporting guide ring and spacing steel wire spacing steel wire and support the force direction that is subjected between guide ring, and disperse its stress, low shearing stress has fallen, prolonged the working life of supporting ring and spacing steel wire greatly, both probability of damages have been reduced, compared with prior art especially significantly to improve.
The performance comparison table
Wherein qv commutates after 1.6 ten thousand times for the sleeve total travel, the Leckage during the whenever mobile 50m of sleeve.
From above-mentioned situation as can be known, the purpose of this utility model can realize.
Description of drawings
Fig. 1 is the utility model limit structure sketch.
Embodiment
As shown in Figure 1, the utility model comprises the multistage bar actuating device of oil hydraulic motor and oil hydraulic cylinder, be that example is to this bright being described further now with the one-level oil hydraulic cylinder, other grade hydraulic cylinder structure is identical with the one-level oil hydraulic cylinder, said oil hydraulic cylinder is made of forward and backward end cap, cylinder barrel 2, piston rod 1, piston assembly and seal ring and damping device, piston rod and cylinder cap are provided with groove, be embedded with supporting ring 3 and spacing steel wire 4 in the groove respectively, it is characterized in that: supporting ring and spacing steel wire contravention face mutually are designed to fillet, and spacing steel wire and supporting ring contravention face mutually are designed to chamfering.Said spacing steel wire forms for the 60TSi2MnA material.Said supporting limited ring is that QT400 one 18 material form.
Claims (1)
1. spacing member that heavily blocks the dumping car hydraulic pressure execution device, the multistage bar actuating device that comprises oil hydraulic motor and oil hydraulic cylinder, said oil hydraulic cylinder is made of forward and backward end cap, cylinder barrel (2), piston rod (1), piston assembly and seal ring and damping device, piston rod and cylinder cap are provided with groove, be embedded with supporting ring (3) and spacing steel wire (4) in the groove respectively, it is characterized in that: supporting ring and spacing steel wire contravention face mutually are designed to fillet, and spacing steel wire and supporting ring contravention face mutually are designed to chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201666100U CN202082192U (en) | 2011-05-24 | 2011-05-24 | Limit component for hydraulic executive device of heavy dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201666100U CN202082192U (en) | 2011-05-24 | 2011-05-24 | Limit component for hydraulic executive device of heavy dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202082192U true CN202082192U (en) | 2011-12-21 |
Family
ID=45342822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201666100U Expired - Fee Related CN202082192U (en) | 2011-05-24 | 2011-05-24 | Limit component for hydraulic executive device of heavy dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202082192U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225635A (en) * | 2013-03-29 | 2013-07-31 | 国家电网公司 | Bidirectional double-acting oil cylinder |
| CN114458657A (en) * | 2022-04-12 | 2022-05-10 | 恒宏智能装备有限公司 | Hydraulic cylinder and working position locking method thereof |
-
2011
- 2011-05-24 CN CN2011201666100U patent/CN202082192U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225635A (en) * | 2013-03-29 | 2013-07-31 | 国家电网公司 | Bidirectional double-acting oil cylinder |
| CN114458657A (en) * | 2022-04-12 | 2022-05-10 | 恒宏智能装备有限公司 | Hydraulic cylinder and working position locking method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20140524 |