CN208010692U - Hydraulic cylinder of the cylinder bottom with relief hole - Google Patents

Hydraulic cylinder of the cylinder bottom with relief hole Download PDF

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Publication number
CN208010692U
CN208010692U CN201820136516.2U CN201820136516U CN208010692U CN 208010692 U CN208010692 U CN 208010692U CN 201820136516 U CN201820136516 U CN 201820136516U CN 208010692 U CN208010692 U CN 208010692U
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CN
China
Prior art keywords
cylinder
piston
relief hole
piston rod
cushion collar
Prior art date
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Active
Application number
CN201820136516.2U
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Chinese (zh)
Inventor
王钟铭
王兰涛
郭乐凯
刁兆品
孟丽娜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Tai Cheng Machinery Equipment Ltd By Share Ltd
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Shandong Tai Cheng Machinery Equipment Ltd By Share Ltd
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Priority to CN201820136516.2U priority Critical patent/CN208010692U/en
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Abstract

The utility model is related to a kind of a kind of hydraulic cylinder of hydraulic cylinder more particularly to cylinder bottom with relief hole, belong to field of mechanical technique.It includes mainly cylinder body, piston, piston rod, the cylinder body is made of cylinder barrel and cylinder bottom, the end of the piston rod is connect by piston with inner wall of cylinder close to the upper and lower two parts in cylinder bottom one end, it is equipped with cylinder bottom cushion collar in the head upper/lower terminal of the cylinder bottom internal piston bar, relief hole is equipped on the top of the end of the cylinder bottom, cylinder bottom cushion collar;It uses and is threadedly coupled between the piston and piston rod;The material of the piston rod uses 45# steel;The utility model has the beneficial effects that:Relief hole is added in the end of cylinder bottom, when cushion collar quick-expansion, the pressure of cylinder barrel can sharply increase, can be by relief hole come pressure release, and the case where making cylinder barrel expand is eased, while disclosure satisfy that the high-frequency requirement of client.

Description

Hydraulic cylinder of the cylinder bottom with relief hole
Technical field
The utility model is related to a kind of a kind of hydraulic cylinder of hydraulic cylinder more particularly to cylinder bottom with relief hole, belong to machinery Technical field.
Background technology
Now most of no with relief hole in the hydraulic cylinder used, during use, piston rod is in quick-expansion When, especially when the end cushion collar of piston rod is close to cylinder bottom end, compensator or trimmer pressure can be increased drastically, at this moment cylinder barrel can because Pressure is excessive and expands, and can so shorten the service life of hydraulic cylinder, cause the increase of cost, so needing one kind can be with The device for alleviating this pressure occurs.
Utility model content
The utility model in view of the above-mentioned deficiencies in the prior art, provides a kind of hydraulic cylinder of the cylinder bottom with relief hole.
The technical solution that the utility model solves above-mentioned technical problem is as follows:
One kind includes cylinder body, piston, piston rod, and the cylinder body is made of cylinder barrel and cylinder bottom, and the end of the piston rod is leaned on The upper and lower two parts in nearly cylinder bottom one end are connect by piston with inner wall of cylinder, upper and lower on the head of the cylinder bottom internal piston bar Both ends are equipped with cylinder bottom cushion collar, and relief hole is equipped on the top of the end of the cylinder bottom, cylinder bottom cushion collar.
Compared with prior art, the utility model has the beneficial effects that:Relief hole is added in the end of cylinder bottom, works as cushion collar , can be by relief hole come pressure release when the pressure of cylinder barrel sharply increases when quick-expansion, the case where making cylinder barrel expand, obtains Alleviate, and disclosure satisfy that the high-frequency requirement of client.
Based on the above technical solution, the utility model can also do following improvement.
Further, it uses and is threadedly coupled between the piston and piston rod.
Advantageous effect using above-mentioned further scheme is:Screw thread can generate prodigious axial force, appearance and size when tightening It is smaller, it makes simple and higher precision can be kept.
Further, the material of the piston rod uses 45# steel.
Advantageous effect using above-mentioned further scheme is:When having greater impact power, heavy load transmission, 45# steel can be with Ensure that piston rod there are enough working strengths.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the utility model.
Fig. 3 is the structural schematic diagram of the utility model.
Fig. 4 is partial enlarged view at A in Fig. 3.
In the figure 1, cylinder barrel;2, piston rod;3, cylinder bottom;4, cylinder bottom cushion collar;5, relief hole;6, piston.
Specific implementation mode
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining this practicality It is novel, it is not intended to limit the scope of the utility model.
A kind of hydraulic cylinder of the cylinder bottom with relief hole, including cylinder body, piston 6, piston rod 2, the cylinder body is by cylinder barrel 1 and cylinder bottom 3 compositions, the end of the piston rod 2 are connect by piston 6 with 1 inner wall of cylinder barrel close to the upper and lower two parts in 3 one end of cylinder bottom, The head upper/lower terminal of 3 internal piston bar 2 of the cylinder bottom is equipped with cylinder bottom cushion collar 4, slow in the end of the cylinder bottom 3, cylinder bottom The top of punching set 4 is equipped with relief hole 5.
The utility model is used when making, between the piston 6 and piston rod 2 and is threadedly coupled;The material of the piston rod 2 Matter uses 45# steel.
The operation principle of the utility model is:When hydraulic cylinder is worked under specific operation, 2 quick-expansion of piston rod, By the cooperation of piston 6 by the pressure conversion of liquid at the mechanical energy of operating mechanism, the in this process movement of cylinder bottom cushion collar 4 The effect of buffering can be played, but speed when speed of the piston rod 2 in the case of high-speed overload is faster than general operating mode, work as cylinder Bottom buffering set 4 to alleviate the pressure of cylinder barrel 1, avoids its expansion when move to cylinder bottom 3 soon, at this time by relief hole 5 come into Row is alleviated, and can play the role of the service life of bumper and absorbing shock and hydraulic cylinder in this way.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (3)

1. a kind of hydraulic cylinder of cylinder bottom with relief hole, including cylinder body, piston (6), piston rod (2), the cylinder body by cylinder barrel (1) and Cylinder bottom (3) forms, and the end of the piston rod (2) passes through piston (6) and cylinder barrel close to the upper and lower two parts in cylinder bottom (3) one end (1) inner wall connects, it is characterised in that:It is slow it to be equipped with cylinder bottom in the head upper/lower terminal of the cylinder bottom (3) internal piston bar (2) Punching set (4) is equipped with relief hole (5) on the end of the cylinder bottom (3), the top of cylinder bottom cushion collar (4).
2. hydraulic cylinder of the cylinder bottom according to claim 1 with relief hole, it is characterised in that:The piston (6) and piston rod (2) using threaded connection between.
3. hydraulic cylinder of the cylinder bottom according to claim 1 with relief hole, it is characterised in that:The material of the piston rod (2) Using 45# steel.
CN201820136516.2U 2018-01-26 2018-01-26 Hydraulic cylinder of the cylinder bottom with relief hole Active CN208010692U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820136516.2U CN208010692U (en) 2018-01-26 2018-01-26 Hydraulic cylinder of the cylinder bottom with relief hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820136516.2U CN208010692U (en) 2018-01-26 2018-01-26 Hydraulic cylinder of the cylinder bottom with relief hole

Publications (1)

Publication Number Publication Date
CN208010692U true CN208010692U (en) 2018-10-26

Family

ID=63884395

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820136516.2U Active CN208010692U (en) 2018-01-26 2018-01-26 Hydraulic cylinder of the cylinder bottom with relief hole

Country Status (1)

Country Link
CN (1) CN208010692U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109306982A (en) * 2018-12-05 2019-02-05 恒天九五重工有限公司 A kind of hydraulic system for preventing drill oil cylinder from swelling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109306982A (en) * 2018-12-05 2019-02-05 恒天九五重工有限公司 A kind of hydraulic system for preventing drill oil cylinder from swelling

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