CN209724841U - A kind of long-life novel telescopic oil cylinder - Google Patents

A kind of long-life novel telescopic oil cylinder Download PDF

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Publication number
CN209724841U
CN209724841U CN201920327445.9U CN201920327445U CN209724841U CN 209724841 U CN209724841 U CN 209724841U CN 201920327445 U CN201920327445 U CN 201920327445U CN 209724841 U CN209724841 U CN 209724841U
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China
Prior art keywords
piston
rod
cylinder
hollow pipe
piston rod
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CN201920327445.9U
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Chinese (zh)
Inventor
杨国仪
朱金和
章建文
庄铖
任延文
徐东年
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Changzhou Sculptor Hydraulic Technology Co Ltd
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Changzhou Sculptor Hydraulic Technology Co Ltd
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Abstract

The utility model discloses a kind of long-life novel telescopic oil cylinders, its structure includes cylinder barrel, cylinder head, piston, piston spacer, spacer through-hole and piston rod, the utility model discloses a kind of long-life novel telescopic oil cylinders, the design proposes piston rod design, it solves oil pipe to be mounted on cylinder tube, it is exposed to outer, the problem of easily causing damage, oil enters in the second hollow pipe from rodless cavity hydraulic fluid port, it is flowed into left end inside cylinder barrel, piston is shifted onto toward there is movement, piston rod is past to move right, stop the oiling into rodless cavity hydraulic fluid port, the oiling into rod chamber hydraulic fluid port, rod chamber oil stream is into the first hollow pipe, and it flows into piston spacer, it is flowed into the cavity between cylinder barrel and the body of rod by the spacer through-hole on plug spacer, piston is turned left promotion, rodless cavity oil is then flowed out from the second hollow pipe, the body of rod is retracted into cylinder barrel, reaching will be into Oil outlet is arranged on the piston rod, and oil pipe is hidden in suspension arm of crane, avoids beneficial effect of the oil pipe because of foreign object damage.

Description

A kind of long-life novel telescopic oil cylinder
Technical field
The utility model relates to oil cylinder technical fields, and in particular to a kind of long-life novel telescopic oil cylinder.
Background technique
Hydraulic cylinder is that hydraulic energy is changed into mechanical energy, the hydraulic of straight reciprocating motion (or pendulum motion) is done and executes member Part, its structure is simple, reliable operation, when realizing reciprocating motion, can remove deceleration device from it, and do not have drive gap, Movement is steady, therefore is used widely in the hydraulic system of various machinery, with the rapid development of industrial technology, long-life Novel telescopic oil cylinder has also obtained technological improvement, but the prior art, oil pipe are mounted on cylinder tube, is exposed to outer, Yi Zao At damage.
Utility model content
(1) technical problems to be solved
In order to overcome the shortage of prior art, it is proposed that a kind of long-life novel telescopic oil cylinder solves oil pipe and is mounted on oil On cylinder cylinder barrel, the problem of being exposed to outside, easily cause damage, reach oil inlet and outlet setting on the piston rod, oil pipe is hidden in In suspension arm of crane, beneficial effect of the oil pipe because of foreign object damage is avoided.
(2) technical solution
The utility model is achieved through the following technical solutions: the utility model proposes a kind of long-life novel telescopic oil Cylinder, including cylinder barrel, cylinder head, piston, piston spacer, spacer through-hole and piston rod, the cylinder head left end are arranged on the inside of cylinder barrel right It holds and is fixedly connected with cylinder barrel inside, the piston rod left end passes perpendicularly through in the middle part of cylinder head right end, and piston rod left end is arranged Inside cylinder barrel, the piston right end is fixedly connected with piston rod left end, and left end is done in the piston setting inside cylinder barrel, described Piston spacer left end is fixedly connected with piston right end, and there are two the spacer through-hole settings, is located at piston spacer or more two End, the piston rod is by piston rod head, the body of rod, rod chamber hydraulic fluid port, rodless cavity hydraulic fluid port, the first hollow pipe, the second hollow pipe and peace Pin hole composition is filled, the piston rod head setting is fixedly connected in the middle part of cylinder head right end, the body of rod right end and piston rod head left end, The body of rod is arranged inside cylinder barrel, is slidably connected on the outside of the body of rod with cylinder head inside, the rod chamber hydraulic fluid port is arranged in work On the right side of the end of the stopper rod crown, the rodless cavity hydraulic fluid port setting is set inside piston rod head top left hand, the piston rod head and the body of rod It is equipped with the first hollow pipe and the second hollow pipe, first hollow pipe is arranged in the second hollow pipe lower end, first hollow pipe Right end is mutually communicated with rod chamber hydraulic fluid port lower end, and first hollow pipe left end is mutually communicated with spacer through-hole, and described second is empty Heart pipe right end is mutually communicated with rodless cavity hydraulic fluid port lower end, second hollow pipe left end extend vertically through piston right end and in piston Side is fixedly connected, and the installation pin hole is arranged in piston rod head rear and front end.
Further, it is provided with sealing ring on the inside of the cylinder head, and is bonded to each other on the inside of sealing ring with body of rod outside.
Further, the generally long wound packages of the cylinder barrel, and the cylinder barrel top left and right sides is provided with an oil return opening.
Further, first hollow pipe and the second hollow pipe are arranged inside piston rod head in bow shape.
Further, the installation pin hole is provided with two, is located in the middle part of piston rod head rear and front end.
Further, the piston is cylindrical, and there are two annular grooves for outside setting.
Further, the cylinder barrel material is 45# steel.
Further, the piston material is magnesium iron.
(3) beneficial effect
The utility model compared with the existing technology, has the advantages that
1) it, is mounted on cylinder tube to solve oil pipe, is exposed to outer, the problem of easily causing damage, the design proposes to live Stopper rod design, it is oily from rodless cavity hydraulic fluid port the problem of solving oil pipe and be mounted on cylinder tube, be exposed to outside, easily cause damage It enters in the second hollow pipe, is flowed into left end inside cylinder barrel, shift piston onto toward there is movement, the body of rod also toward moving right, is shifted onto Piston rod head is mobile, stops the oiling into rodless cavity hydraulic fluid port, the oiling into rod chamber hydraulic fluid port, and rod chamber oil stream is into the first hollow pipe In, and flow into piston spacer, it is flowed into the cavity between cylinder barrel and the body of rod by the spacer through-hole on plug spacer, piston is past Left promotion, rodless cavity oil are then flowed out from the second hollow pipe, and the body of rod is retracted into cylinder barrel, reach and oil inlet and outlet is arranged in piston rod On, oil pipe is hidden in suspension arm of crane, avoids beneficial effect of the oil pipe because of foreign object damage.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model Sign, objects and advantages will become more apparent upon:
Fig. 1 is the positive structure diagram of the utility model;
Fig. 2 is the overlooking structure diagram of the utility model;
Fig. 3 is the left view structural representation of the utility model;
Fig. 4 is the schematic diagram of internal structure of the utility model;
Fig. 5 is the oil channel structures schematic diagram of the utility model;
In figure: cylinder barrel -1, piston rod -2, cylinder head -3, piston -4, piston spacer -5, spacer through-hole -51, piston rod head - 21, the body of rod -22, rod chamber hydraulic fluid port -23, rodless cavity hydraulic fluid port -24, the first hollow pipe -25, the second hollow pipe -26, installation pin hole - 27。
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.
Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5 are please referred to, the utility model provides a kind of long-life novel telescopic oil cylinder: including Cylinder barrel 1, cylinder head 3, piston 4, piston spacer 5, spacer through-hole 51 and piston rod 2,3 left end of cylinder head are arranged in 1 inside right end of cylinder barrel And be fixedly connected on the inside of cylinder barrel 1,2 left end of piston rod passes perpendicularly through in the middle part of cylinder head 3 right end, and the setting of 2 left end of piston rod exists Inside cylinder barrel 1,4 right end of piston is fixedly connected with 2 left end of piston rod, and left end, piston spacer 5 are done in the setting of piston 4 inside cylinder barrel 1 Left end is fixedly connected with 4 right end of piston, and there are two the settings of spacer through-hole 51, is located at 5 upper and lower ends of piston spacer, piston rod 2 by piston rod head 21, the body of rod 22, rod chamber hydraulic fluid port 23, rodless cavity hydraulic fluid port 24, the first hollow pipe 25, the second hollow pipe 26 and peace It fills pin hole 27 to form, the setting of piston rod head 21 is fixed in the middle part of 3 right end of cylinder head, 22 right end of the body of rod and 21 left end of piston rod head to be connected Connect, the body of rod 22 is arranged inside cylinder barrel 1, the outside of the body of rod 22 be slidably connected on the inside of cylinder head 3, the setting of rod chamber hydraulic fluid port 23 is in piston On the right side of 21 top of head, the setting of rodless cavity hydraulic fluid port 24 is set inside 21 top left hand of piston rod head, piston rod head 21 and the body of rod 22 It is equipped with the first hollow pipe 25 and the second hollow pipe 26, the first hollow pipe 25 is arranged in 26 lower end of the second hollow pipe, the first hollow pipe 25 right ends are mutually communicated with 23 lower end of rod chamber hydraulic fluid port, and 25 left end of the first hollow pipe is mutually communicated with spacer through-hole 51, and second is empty 26 right end of heart pipe is mutually communicated with 24 lower end of rodless cavity hydraulic fluid port, 26 left end of the second hollow pipe extend vertically through 4 right end of piston and with work 4 inside of plug is fixedly connected, and installation pin hole 27 is arranged in 21 rear and front end of piston rod head.
Wherein, be provided with sealing ring on the inside of the cylinder head 3, and on the inside of sealing ring be bonded to each other on the outside of the body of rod 22, can have Effect avoid have outflow in cylinder barrel 1, cause stress deficiency.
Wherein, the generally long wound packages of the cylinder barrel 1, and 1 top of the cylinder barrel left and right sides is provided with an oil return opening, is convenient for Inside extra oil discharge cylinder barrel 1, avoid in cylinder barrel 1 that oil is excessive, pressure is excessive.
Wherein, first hollow pipe 25 and the second hollow pipe 26 are arranged inside piston rod head 21 in bow shape, can have Avoiding and installing pin hole 27 and contact for effect, causes oil can not be normal through.
Wherein, it there are two the settings of installation pin hole 27, is located in the middle part of 21 rear and front end of piston rod head, is convenient for Utensil is installed.
Wherein, the piston 4 is cylindrical, and there are two annular grooves for outside setting, can be effectively under the drive of oil pressure It is moved, while cylinder barrel 1 is separated into two parts, rod chamber oil and rodless cavity hydraulic fluid port is avoided to mix.
Wherein, 1 material of cylinder barrel is 45# steel, intensity with higher and preferable machinability.
Wherein, 4 material of piston is magnesium iron, has higher-strength and certain toughness, various functional.
Piston rod 2 described in this patent is the connecting component of supporting piston acting, and major applications are in oil cylinder, cylinder moving It is the moving component that movement is frequent, technical requirements are high in execution unit, by taking hydraulic cylinder as an example, by: cylinder barrel, piston rod (cylinder rod), piston, a few part compositions of end cap, the quality of processing quality directly affect the life and reliability of entire product, Piston rod processing request is high, and surface roughness requirements are Ra0.4~0.8 μm, requires stringent, piston to concentricity, wearability Bar uses rolling and processing, to improve surface resistance to corrosion, and the generation or expansion of energy delay fatigue crackle, thus improves oil Cylinder rod fatigue strength, by roll forming, rolling surface forms one layer of flow harden layer, reduces the bullet for being ground secondary contact surface Property and plastic deformation, to improve the wearability on cylinder rod surface, while burn caused by avoiding because of grinding, after rolling, Fiting property can be improved in the reduction of surface roughness value, meanwhile, to sealing ring or sealing element when reducing cylinder rod piston motion Frictionally damage, improve the whole service life of oil cylinder, rolling technology is a kind of technological measure of high-effect high-quality.
Cylinder barrel 1: being mounted on arm of crane by working principle by bolt first, while piston rod head 21 passes through installation pin hole 27 assign bolt to be fixed on another section boom, and external oil return pipe is connect with the oil return opening on cylinder barrel 1 respectively, then by two Oil pipe is connected with rod chamber hydraulic fluid port 23 and rodless cavity hydraulic fluid port 24 respectively, and oil pipe is hidden under boom, when using oil cylinder, oil from Rodless cavity hydraulic fluid port 23 enters in the second hollow pipe 26, this oil is rodless cavity oil, and rodless cavity oil is flowed into along the second hollow pipe 26 To 1 inside left end of cylinder barrel, logical increasing with rodless cavity oil, pressure enhancing shifts piston 4 onto toward there is movement, is connected with piston 4 The body of rod 22 also toward moving right, shift that piston rod head 21 is mobile, and extra rodless cavity oil is discharged from the oil return opening of 1 right end of cylinder barrel onto Cylinder barrel 1 stops the oiling into rodless cavity hydraulic fluid port 24, then infuses into rod chamber hydraulic fluid port 23 when needing to bounce back in piston rod 2 Oil, this oil are rod chamber oil, and rod chamber oil stream flows into piston spacer 5 into the first hollow pipe 25, by plug spacer 5 Spacer through-hole 51 flow into the cavity between cylinder barrel 1 and the body of rod 22, piston 4 is turned left promotion, rodless cavity oil is then from the second sky Heart pipe 26 flows out, and the body of rod 22 is retracted into cylinder barrel 1, and extra rodless cavity oil is flowed out from the oil return opening of 1 left end of cylinder barrel, so complete At the straight reciprocating motion of piston rod 2, the design proposes that piston rod 2 designs, and solves oil pipe and is mounted on cylinder tube, exposure Outside, the problem of damage is easily caused, oil is entered in the second hollow pipe 26 from rodless cavity hydraulic fluid port 23, is flowed into inside cylinder barrel 1 most Left end shifts piston 4 onto toward there is movement, and the body of rod 22 is shifted the movement of piston rod head 21 onto, stopped toward rodless cavity hydraulic fluid port 24 also toward moving right Middle oiling, the oiling into rod chamber hydraulic fluid port 23, rod chamber oil stream flow into piston spacer 5 into the first hollow pipe 25, pass through Spacer through-hole 51 on plug spacer 5 flows into the cavity between cylinder barrel 1 and the body of rod 22, piston 4 is turned left promotion, rodless cavity oil is then It is flowed out from the second hollow pipe 26, the body of rod 22 is retracted into cylinder barrel 1, is reached oil inlet and outlet setting on the piston rod, oil pipe is hidden In suspension arm of crane, beneficial effect of the oil pipe because of foreign object damage is avoided.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims All changes are embraced therein.It should not treat any reference in the claims as limiting related right It is required that.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (6)

1. a kind of long-life novel telescopic oil cylinder, including cylinder barrel (1), cylinder head (3), piston (4), piston spacer (5) and spacer are logical Hole (51), it is characterised in that: it further include piston rod (2), the setting of cylinder head (3) left end right end and and cylinder on the inside of cylinder barrel (1) It is fixedly connected on the inside of cylinder (1), piston rod (2) left end passes perpendicularly through in the middle part of cylinder head (3) right end, and piston rod (2) left end Setting is internal in cylinder barrel (1), and piston (4) right end is fixedly connected with piston rod (2) left end, and the piston (4) is arranged in cylinder Left end is done inside cylinder (1), piston spacer (5) left end is fixedly connected with piston (4) right end, spacer through-hole (51) setting There are two, be located at piston spacer (5) upper and lower ends, the piston rod (2) by piston rod head (21), the body of rod (22), have bar Chamber hydraulic fluid port (23), rodless cavity hydraulic fluid port (24), the first hollow pipe (25), the second hollow pipe (26) and installation pin hole (27) composition, institute State piston rod head (21) setting fixed company in the middle part of cylinder head (3) right end, the body of rod (22) right end and piston rod head (21) left end It connects, the body of rod (22) setting is internal in cylinder barrel (1), is slidably connected on the outside of the body of rod (22) with cylinder head (3) inside, described to have On the right side of piston rod head (21) top, rodless cavity hydraulic fluid port (24) setting is pushed up in piston rod head (21) for rod cavity hydraulic fluid port (23) setting End left side, the piston rod head (21) and the body of rod (22) are internally provided with the first hollow pipe (25) and the second hollow pipe (26), institute The first hollow pipe (25) setting is stated in the second hollow pipe (26) lower end, the first hollow pipe (25) right end and rod chamber hydraulic fluid port (23) lower end is mutually communicated, and the first hollow pipe (25) left end is mutually communicated with spacer through-hole (51), second hollow pipe (26) right end is mutually communicated with rodless cavity hydraulic fluid port (24) lower end, and the second hollow pipe (26) left end extends vertically through piston (4) right side It holds and is fixedly connected with piston (4) inside, the installation pin hole (27) is arranged in piston rod head (21) rear and front end.
2. a kind of long-life novel telescopic oil cylinder according to claim 1, it is characterised in that: set on the inside of the cylinder head (3) It is equipped with sealing ring, and is bonded to each other on the inside of sealing ring with the body of rod (22) outside.
3. a kind of long-life novel telescopic oil cylinder according to claim 1, it is characterised in that: the cylinder barrel (1) is generally Long wound packages, and cylinder barrel (1) top left and right sides is provided with an oil return opening.
4. a kind of long-life novel telescopic oil cylinder according to claim 1, it is characterised in that: first hollow pipe (25) With the second hollow pipe (26) setting in bow shape inside piston rod head (21).
5. a kind of long-life novel telescopic oil cylinder according to claim 1, it is characterised in that: the installation pin hole (27) sets There are two setting, it is located in the middle part of piston rod head (21) rear and front end.
6. a kind of long-life novel telescopic oil cylinder according to claim 1, it is characterised in that: the piston (4) is in cylinder Shape, there are two annular grooves for outside setting.
CN201920327445.9U 2019-03-15 2019-03-15 A kind of long-life novel telescopic oil cylinder Active CN209724841U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920327445.9U CN209724841U (en) 2019-03-15 2019-03-15 A kind of long-life novel telescopic oil cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920327445.9U CN209724841U (en) 2019-03-15 2019-03-15 A kind of long-life novel telescopic oil cylinder

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CN209724841U true CN209724841U (en) 2019-12-03

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113048123A (en) * 2021-03-24 2021-06-29 北京汽车集团越野车有限公司 Power cylinder assembly and vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113048123A (en) * 2021-03-24 2021-06-29 北京汽车集团越野车有限公司 Power cylinder assembly and vehicle

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