CN204175706U - A kind of safe pressure limiting tractor oil cylinder - Google Patents

A kind of safe pressure limiting tractor oil cylinder Download PDF

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Publication number
CN204175706U
CN204175706U CN201420626525.1U CN201420626525U CN204175706U CN 204175706 U CN204175706 U CN 204175706U CN 201420626525 U CN201420626525 U CN 201420626525U CN 204175706 U CN204175706 U CN 204175706U
Authority
CN
China
Prior art keywords
cylinder body
central shaft
outer cylinder
cylinder head
head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420626525.1U
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Chinese (zh)
Inventor
王光华
黄玉金
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.)
JIANGSU BOMAO MACHINERY Co Ltd
Original Assignee
JIANGSU BOMAO MACHINERY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU BOMAO MACHINERY Co Ltd filed Critical JIANGSU BOMAO MACHINERY Co Ltd
Priority to CN201420626525.1U priority Critical patent/CN204175706U/en
Application granted granted Critical
Publication of CN204175706U publication Critical patent/CN204175706U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of safe pressure limiting tractor oil cylinder, comprise: outer cylinder body, cylinder head, central shaft, described outer cylinder body one end is mounted with bottom, the other end is provided with cylinder head, bottom fixed base is provided with outside bottom, be welded and fixed between outer cylinder body and bottom, oilhole is provided with on the upside of described outer cylinder body, oilhole is communicated with the cavity of outer cylinder body inside, described cylinder head is inserted into outer cylinder body inside, described outer cylinder body, cylinder head inside is provided with middle cylinder body, central shaft is inserted with in middle cylinder body, in the insertion of central shaft one end in cylinder body, the other end is provided with central shaft fixed hole, one end in central shaft inserts in cylinder body is provided with piston, back-up ring is provided with between piston and middle cylinder body.Be provided with y-type seal ring, 0 RunddichtringO, dust-proof cushion in the draw-in groove of the utility model between middle cylinder body and central shaft, between cylinder head and outer cylinder body, add effective work area, improve ouput force, so it is little to have volume, be convenient to the advantage of manufacturing.

Description

A kind of safe pressure limiting tractor oil cylinder
Technical field
The utility model relates to oil cylinder field, is specially a kind of safe pressure limiting tractor oil cylinder.
Background technique
Hydraulic energy is changed into mechanical energy, does the hydraulic actuator of straight reciprocating motion (or oscillating motion) by oil hydraulic cylinder.Its structure is simple, reliable operation.When realizing to-and-fro motion with it, can speed reducer be removed from, and there is no drive gap, stable movement, therefore be used widely in the hydraulic system of various machinery.The pressure reduction on oil hydraulic cylinder ouput force and piston effective area and both sides thereof is directly proportional; Oil hydraulic cylinder is made up of cylinder barrel and cylinder cap, piston and piston rod, seal arrangement, damping device and venting gas appliance substantially.Damping device and venting gas appliance are depending on embody rule occasion, and other devices are then essential.
Chinese patent discloses a kind of oil cylinder (August 19 2009 day for announcing, notification number CN 201293002Y), it comprises outer cylinder body, piston rod, piston, flange, inner cylinder body, guide sleeve, nut and seal ring, it is characterized in that being provided with inner casing in outer cylinder body, inner casing is made up of inner cylinder body, piston rod and piston, outer cylinder body is connected by guide sleeve with inner casing, be provided with the oil circuit be connected with inner cylinder body for outer cylinder body on the piston rod, but its stock utilization is low, manufacturing difficulty is large, manufacture cost is high, and Energy transmission ratio is little.
Model utility content
The technical problem that the utility model solves is to provide a kind of safe pressure limiting tractor oil cylinder, to solve the problem proposed in above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions: a kind of safe pressure limiting tractor oil cylinder, comprise: outer cylinder body, cylinder head, central shaft, described outer cylinder body one end is mounted with bottom, the other end is provided with cylinder head, bottom fixed base is provided with outside bottom, be welded and fixed between outer cylinder body and bottom, oilhole is provided with on the upside of described outer cylinder body, oilhole is communicated with the cavity of outer cylinder body inside, described cylinder head is inserted into outer cylinder body inside, draw-in groove is provided with inside cylinder head, y-type seal ring is provided with in draw-in groove between cylinder head and outer cylinder body, 0 RunddichtringO, dust-proof cushion, described outer cylinder body, cylinder head inside is provided with middle cylinder body, central shaft is inserted with in middle cylinder body, in the insertion of central shaft one end in cylinder body, the other end is provided with central shaft fixed hole, one end in central shaft inserts in cylinder body is provided with piston, back-up ring is provided with between piston and middle cylinder body, pressure transducer is provided with inside back-up ring, pressure transducer is arranged on middle cylinder body, central shaft outside described cylinder head is provided with limited post, the cylinder head side of limited post is provided with rubber washer.
Be provided with draw-in groove inside described middle cylinder body, in the draw-in groove between middle cylinder body and central shaft, be provided with y-type seal ring, 0 RunddichtringO, dust-proof cushion.
Described outer cylinder body and cylinder head joint are provided with sealing gasket.
Described bottom fixed base is provided with fixed hole, and fixed hole is circular pin hole.
Compared with prior art, the beneficial effects of the utility model are: be provided with y-type seal ring, 0 RunddichtringO, dust-proof cushion in the draw-in groove of the utility model between middle cylinder body and central shaft, between cylinder head and outer cylinder body, add effective work area, improve ouput force, so it is little to have volume, be convenient to the advantage of manufacturing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is cylinder head structure schematic diagram of the present utility model.
Fig. 3 is middle housing structure schematic diagram of the present utility model.
In figure: 1, bottom fixed base; 2, bottom; 3, outer cylinder body; 4, oilhole; 5, middle cylinder body; 6, cylinder head; 7, y-type seal ring; 8,0 RunddichtringO; 9, dust-proof cushion; 10, central shaft; 11, central shaft fixed hole; 12, piston; 13, back-up ring; 14, sealing gasket; 15, limited post; 16, rubber washer; 17, pressure transducer.
Embodiment
In order to make actualizing technology means of the present utility model, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, set forth the utility model further.
As shown in Figures 1 to 3, a kind of safe pressure limiting tractor oil cylinder, comprise: outer cylinder body 3, cylinder head 6, central shaft 10, described outer cylinder body 3 one end is mounted with bottom 2, the other end is provided with cylinder head 6, bottom fixed base 1 is provided with outside bottom 2, be welded and fixed between outer cylinder body 3 and bottom 2, oilhole 4 is provided with on the upside of described outer cylinder body 3, oilhole 4 is communicated with the cavity of outer cylinder body 3 inside, it is inner that described cylinder head 6 is inserted into outer cylinder body 3, draw-in groove is provided with inside cylinder head 6, y-type seal ring 7 is provided with in draw-in groove between cylinder head 6 and outer cylinder body 3, 0 RunddichtringO 8, dust-proof cushion 9, described outer cylinder body 3, cylinder head 6 inside is provided with middle cylinder body 5, central shaft 11 is inserted with in middle cylinder body 5, in the insertion of central shaft 11 one end in cylinder body 5, the other end is provided with central shaft fixed hole 11, one end in central shaft 11 inserts in cylinder body 5 is provided with piston 12, back-up ring 13 is provided with between piston 12 and middle cylinder body 5, pressure transducer 17 is provided with inside back-up ring 13, pressure transducer 17 is arranged on middle cylinder body 5, central shaft 11 outside described cylinder head 6 is provided with limited post 15, cylinder head 6 side of limited post 15 is provided with rubber washer 16.
Be provided with draw-in groove inside described middle cylinder body 5, in the draw-in groove between middle cylinder body 5 and central shaft 11, be provided with y-type seal ring 7,0 RunddichtringO 8, dust-proof cushion 9.
Described outer cylinder body 3 is provided with sealing gasket 14 with cylinder head 6 joint.
Described bottom fixed base 1 is provided with fixed hole, and fixed hole is circular pin hole.
Y-type seal ring 7 is provided with in the draw-in groove of the utility model between middle cylinder body 5 and central shaft 11, 0 RunddichtringO 8, dust-proof cushion 9, y-type seal ring 7 is provided with in draw-in groove simultaneously between cylinder head 6 and outer cylinder body 3, 0 RunddichtringO 8, dust-proof cushion 9, substantially increase the working efficiency of oil cylinder, improve the working life of oil cylinder simultaneously, and outer cylinder body 3, cylinder head 6 inside is provided with middle cylinder body 5, and pressure transducer 17 is provided with inside back-up ring 13, the stressing conditions of oil cylinder can be monitored, prevent overtired, simultaneously, central shaft 11 outside cylinder head 6 is provided with limited post 15 and can prevents from colliding between central shaft 11 and middle cylinder body 5, effectively can improve the working life of oil cylinder.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.Claimed scope of the present utility model is defined by appending claims and equivalent thereof.

Claims (4)

1. a safe pressure limiting tractor oil cylinder, comprise: outer cylinder body, cylinder head, central shaft, it is characterized in that: described outer cylinder body one end is mounted with bottom, the other end is provided with cylinder head, bottom fixed base is provided with outside bottom, be welded and fixed between outer cylinder body and bottom, oilhole is provided with on the upside of described outer cylinder body, oilhole is communicated with the cavity of outer cylinder body inside, described cylinder head is inserted into outer cylinder body inside, draw-in groove is provided with inside cylinder head, y-type seal ring is provided with in draw-in groove between cylinder head and outer cylinder body, 0 RunddichtringO, dust-proof cushion, described outer cylinder body, cylinder head inside is provided with middle cylinder body, central shaft is inserted with in middle cylinder body, in the insertion of central shaft one end in cylinder body, the other end is provided with central shaft fixed hole, one end in central shaft inserts in cylinder body is provided with piston, back-up ring is provided with between piston and middle cylinder body, pressure transducer is provided with inside back-up ring, pressure transducer is arranged on middle cylinder body, central shaft outside described cylinder head is provided with limited post, the cylinder head side of limited post is provided with rubber washer.
2. one according to claim 1 safe pressure limiting tractor oil cylinder, is characterized in that: be provided with draw-in groove inside described middle cylinder body, is provided with y-type seal ring, 0 RunddichtringO, dust-proof cushion in the draw-in groove between middle cylinder body and central shaft.
3. one according to claim 1 safe pressure limiting tractor oil cylinder, is characterized in that: described outer cylinder body and cylinder head joint are provided with sealing gasket.
4. one according to claim 1 safe pressure limiting tractor oil cylinder, is characterized in that: described bottom fixed base is provided with fixed hole, and fixed hole is circular pin hole.
CN201420626525.1U 2014-10-28 2014-10-28 A kind of safe pressure limiting tractor oil cylinder Expired - Fee Related CN204175706U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420626525.1U CN204175706U (en) 2014-10-28 2014-10-28 A kind of safe pressure limiting tractor oil cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420626525.1U CN204175706U (en) 2014-10-28 2014-10-28 A kind of safe pressure limiting tractor oil cylinder

Publications (1)

Publication Number Publication Date
CN204175706U true CN204175706U (en) 2015-02-25

Family

ID=52564517

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420626525.1U Expired - Fee Related CN204175706U (en) 2014-10-28 2014-10-28 A kind of safe pressure limiting tractor oil cylinder

Country Status (1)

Country Link
CN (1) CN204175706U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150225

Termination date: 20151028

EXPY Termination of patent right or utility model