CN207715472U - A kind of excavator bucket oil cylinder - Google Patents

Abstract

The utility model discloses a kind of excavator bucket oil cylinder, it is characterised in that：Including piston rod, guide sleeve, cylinder body, piston and cylinder bottom, cylinder body wherein one end is sealed by cylinder bottom, the open end inner wall of cylinder body connects guide sleeve, preceding hydraulic fluid port is connected to rod chamber, hydraulic fluid port is connected to rodless cavity afterwards, guide sleeve inner wall coordinates with the sealing of piston rod outer wall, piston is connected on one end end that piston rod is placed in cylinder body, piston outer wall front coordinates with inboard wall of cylinder block sealing, there are gaps with inboard wall of cylinder block at piston outer wall rear portion, it is equipped with tapped through hole on the outer wall, steel ball built in tapped through hole, tapped through hole is threadedly coupled interior hexagonal holding screw, interior hexagonal holding screw is against on steel ball, steel ball is against in the groove of piston rod.The utility model advantage has：Simple in structure, stability is good, capable of expansion and contraction.

Description

A kind of excavator bucket oil cylinder

Technical field

The invention belongs to technical field of engineering machinery, and in particular to a kind of excavator bucket oil cylinder.

Background technology

Loader-digger is a kind of widely applied multi-functional construction machinery.Since a variety of works can be changed quickly in it The features such as industry device multi items, high quality and high efficiency, therefore favored by vast construction operation unit, manufacture industry Also it increasingly flourishes.Apply the speed during oil cylinder requirement on loader-digger is in shovel digging fast, efficient, mobility Good, operation is light.At present during the use of engineering machinery bucket cylinder, it is slow that there are cylinder actions, oil leak at pressure release, oil sealing The case where.From economy and product quality and the angle of promotion properties of product, need to design and fabricate a meet A excavation Oil cylinder of the market demand and the fusion of itself product.Therefore, for the solution of the above problem with regard to particularly important.

Invention content

The present invention overcome the deficiencies of the prior art and provide it is a kind of it is simple in structure, stability is good, retractile excavator Bucket cylinder.

In order to achieve the above object, the technical solution adopted in the present invention is：A kind of excavator bucket oil cylinder, it is characterised in that： Including piston rod, guide sleeve, cylinder body, piston and cylinder bottom, the cylinder body wherein one end is sealed by cylinder bottom, the open end of the cylinder body Inner wall connects guide sleeve, and both ends are equipped with the first O-ring seals on the outer wall of the guide sleeve, sets that there are two oil on the cylinder body Mouthful, it is preceding hydraulic fluid port and rear hydraulic fluid port, is divided into rod chamber and rodless cavity in the cylinder body, the preceding hydraulic fluid port is connected to the rod chamber, Hydraulic fluid port be connected to the rodless cavity after described, and the guide sleeve inner wall and piston rod outer wall seal cooperation, the guide sleeve it is interior Hole baffle ring, dustband, axle sealing ring, bumper ring, sliding shaft sleeve and hole elastic spring, the piston are equipped on wall successively Piston is connected on one end end that bar is placed in cylinder body, the piston inner wall is equipped with the second O-ring seals, the piston outer wall The sealing of front and inboard wall of cylinder block coordinates, be equipped with successively on the outer wall first receive dirty ring, first be molded guide ring, hole sealing ring, Second molding guide ring and second receives dirty ring, and there are gaps with inboard wall of cylinder block at the piston outer wall rear portion, on the outer wall equipped with spiral shell Line through-hole, steel ball built in the tapped through hole, the tapped through hole are threadedly coupled interior hexagonal holding screw, the interior hexagonal tightening Screw is against on steel ball, and the steel ball is against in the groove of piston rod, and the piston rod is placed on one end outside cylinder body and connects First earrings, the cylinder bottom are equipped with the second earrings, first earrings and the equal inner sleeve of the second earrings, the axle sleeve Both ends are equipped with dustband, and lubricating cup is equipped on first earrings and second earrings.

Further, the lubricating cup on first earrings and piston rod axis are in 120 °, the lubricating cup on second earrings It it is in 90 ° with piston rod.

Further, the preceding hydraulic fluid port and the rear hydraulic fluid port are each provided at cylinder body on one end of cylinder bottom.

Further, the preceding hydraulic fluid port is connected to auxiliary hydraulic fluid port by oil pipe, and the auxiliary hydraulic fluid port is connected to rod chamber.

Further, the entrance of the preceding hydraulic fluid port and the rear hydraulic fluid port is all provided with there are two chamfering, and chamfering is 15 ° and 45 °.

Further, the cylinder bottom is integrally formed with second earrings.

Further, the cylinder diameter is 85mm, and the diameter of piston rod is 55mm.

Further, the cylinder body and the piston rod reel ranging from 925-1524mm.

Further, the stroke of the piston is 600mm.

Compared with prior art, it is an advantage of the invention that：

1, service life is long and stability is good；

2, capable of expansion and contraction, occur without pressure release, oil leak, flexible slow situation in 2000 working hours；

3, complete machine production efficiency and the economic benefit of production are improved.

Description of the drawings

Fig. 1 is a kind of structural representation front sectional view of excavator bucket oil cylinder of the present invention.

Fig. 2 is a kind of structural representation vertical view of excavator bucket oil cylinder of the present invention.

1. piston rod in the figure, 2. guide sleeves, 3. cylinder bodies, 4. pistons, 5. cylinder bottoms, 6. first O-ring seals, oil before 7. Mouthful, hydraulic fluid port after 8., 9. rod chambers, 10. rodless cavities, 11. hole baffle rings, 12. dustbands, 13. axle sealing rings, 14. bumper rings, 15. sliding shaft sleeve, 16. hole elastic springs, 17. second O-ring seals, 18. first receive dirty ring, 19. first molding guide rings, 20. hole sealing ring, 21. second molding guide rings, 22. second receive dirty ring, 23. tapped through holes, 24. steel balls, and hexagonal is tight in 25. Determine screw, 26. first earrings, 27. second earrings, 28. axle sleeves, 29. dustbands, 30. lubricating cups, 31. oil pipes, 32. auxiliary hydraulic fluid ports.

Specific implementation mode

The embodiments given below are intended to further illustrate the invention, but is not to be construed as to the scope of the present invention Limitation, some the nonessential modifications and adaptations of those skilled in the art according to the content of present invention to the present invention still fall within this The protection domain of invention.

Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " comprising " or its change It changes such as "comprising" or " including " etc. and will be understood to comprise stated element or component, and do not exclude other members Part or other component parts.

In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation, With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ", " third " is used for description purposes only, and is not understood to indicate or imply relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.

In fig. 1 and 2,1. piston rod, 2. guide sleeves, 3. cylinder bodies, 4. pistons, 5. cylinder bottoms, 6. first O-ring seals, Hydraulic fluid port before 7., hydraulic fluid port after 8., 9. rod chambers, 10. rodless cavities, 11. hole baffle rings, 12. dustbands, 13. axle sealing rings, 14. Bumper ring, 15. sliding shaft sleeves, 16. hole elastic springs, 17. second O-ring seals, 18. first receive dirty ring, 19. first moldings Guide ring, 20. hole sealing rings, 21. second molding guide rings, 22. second receive dirty ring, 23. tapped through holes, 24. steel balls, and 25. Interior hexagonal holding screw, 26. first earrings, 27. second earrings, 28. axle sleeves, 29. dustbands, 30. lubricating cups, 31. oil pipes, 32. Assist hydraulic fluid port.

A kind of excavator bucket oil cylinder, it is characterised in that：Including piston rod 1, guide sleeve 2, cylinder body 3, piston 4 and cylinder bottom 5, The wherein one end of cylinder body 3 is sealed by cylinder bottom 5, and the open end inner wall of cylinder body 3 connects guide sleeve 2, and both ends are equipped on the outer wall of guide sleeve 2 First O-ring seals 6 are set on cylinder body 3 there are two hydraulic fluid port, are preceding hydraulic fluid port 7 and rear hydraulic fluid port 8, are divided into rod chamber 9 and nothing in cylinder body 3 Rod cavity 10, preceding hydraulic fluid port 7 are connected to the rod chamber 9, and rear hydraulic fluid port 8 is connected to the rodless cavity 10,2 inner wall of guide sleeve and piston rod The sealing of 1 outer wall coordinates, and is equipped with hole baffle ring 11, dustband 12, axle sealing ring 13, bumper ring on the inner wall of guide sleeve 2 successively 14, sliding shaft sleeve 15 and hole elastic spring 16, piston rod 1, which is placed on one end end in cylinder body 3, connects piston 4, in piston 4 Wall is equipped with the second O-ring seals 17, and 4 outer wall front of piston coordinates with 3 inner wall sealing of cylinder body, is equipped with first successively on the outer wall Dirty ring 18, first of receiving molding guide ring 19, hole sealing ring 20, second are molded guide ring 21 and second and receive dirty ring 22, outside piston 4 There are gaps with 3 inner wall of cylinder body at wall rear portion, are equipped with tapped through hole 23, steel ball 24 built in tapped through hole 23 on the outer wall, and screw thread leads to Hole 23 is threadedly coupled interior hexagonal holding screw 25, and interior hexagonal holding screw 25 is against on steel ball 24, and steel ball 24 is against piston rod 1 In groove, the first earrings 26 is connected on one end that piston rod 1 is placed in outside cylinder body 3, cylinder bottom 5 is equipped with the second earrings 27, and first 27 equal inner sleeve 28 of earrings 26 and second earrings, 28 both ends of axle sleeve are equipped with dustband 29, the first earrings 26 and second Lubricating cup 30 is equipped on earrings 27.

Lubricating cup 30 and 1 axis of piston rod on first earrings 26 are in 120 °, the lubricating cup 30 on second earrings 27 and work Stopper rod 1 is in 90 °.

Preceding hydraulic fluid port 7 and rear hydraulic fluid port 8 are each provided at cylinder body 3 on one end of cylinder bottom 5.

Preceding hydraulic fluid port 7 is connected to auxiliary hydraulic fluid port 32 by oil pipe 31, and auxiliary hydraulic fluid port 32 is connected to rod chamber 9.

The entrance of preceding hydraulic fluid port 7 and rear hydraulic fluid port 8 is all provided with there are two chamfering, and chamfering is 15 ° and 45 °.

Cylinder bottom 5 and the second earrings 27 are integrally formed.

3 internal diameter of cylinder body is 85mm, 1 a diameter of 55mm of piston rod.

Cylinder body 3 reels ranging from 925-1524mm with piston rod 1.

The stroke of piston 4 is 600mm.

In use, bucket cylinder is installed between dipper and dipper stick；Bulge test 24 hours has been carried out in a pre-installation There is a phenomenon where oil leaks；It is capable of expansion and contraction after installation, and after practice test, cumulative activation no oil leak in 2000 hours is let out The case where pressure, occurs, and has achieved the effect that anticipation；The overall performance and quality of product are improved from another point of view；Improve complete machine The economic benefit of production efficiency and production.

Claims (9)

1. a kind of excavator bucket oil cylinder, it is characterised in that：Including piston rod（1）, guide sleeve（2）, cylinder body（3）, piston（4）With Cylinder bottom（5）, the cylinder body（3）Wherein one end is by cylinder bottom（5）Sealing, the cylinder body（3）Open end inner wall connect guide sleeve （2）, the guide sleeve（2）Outer wall on both ends be equipped with the first O-ring seals（6）, the cylinder body（3）On set there are two hydraulic fluid port, For preceding hydraulic fluid port（7）With rear hydraulic fluid port（8）, the cylinder body（3）Inside it is divided into rod chamber（9）And rodless cavity（10）, the preceding hydraulic fluid port（7）With The rod chamber（9）Connection, the rear hydraulic fluid port（8）With the rodless cavity（10）Connection, the guide sleeve（2）Inner wall and piston rod （1）Outer wall sealing cooperation, the guide sleeve（2）Inner wall on successively be equipped with hole baffle ring（11）, dustband（12）, axis sealing Circle（13）, bumper ring（14）, sliding shaft sleeve（15）And hole elastic spring（16）, the piston rod（1）It is placed in cylinder body（3）In One end connects piston on end（4）, the piston（4）Inner wall is equipped with the second O-ring seals（17）, the piston（4）Outer wall Front and cylinder body（3）Inner wall sealing coordinates, and receives dirty ring equipped with first successively on the outer wall（18）, first molding guide ring（19）、 Hole sealing ring（20）, second molding guide ring（21）Dirty ring is received with second（22）, the piston（4）External rear wall and cylinder body （3）There are gaps for inner wall, are equipped with tapped through hole on the outer wall（23）, the tapped through hole（23）Built-in steel ball（24）, the spiral shell Line through-hole（23）Hexagonal holding screw in being threadedly coupled（25）, the interior hexagonal holding screw（25）It is against steel ball（24）On, institute State steel ball（24）It is against piston rod（1）Groove in, the piston rod（1）It is placed in cylinder body（3）First is connected on external one end Earrings（26）, the cylinder bottom（5）It is equipped with the second earrings（27）, first earrings（26）With second earrings（27）In Set axle sleeve（28）, the axle sleeve（28）Both ends are equipped with dustband（29）, first earrings（26）With second earrings （27）On be equipped with lubricating cup（30）.

2. a kind of excavator bucket oil cylinder according to claim 1, it is characterised in that：First earrings（26）On oil Cup（30）With piston rod（1）Axis is in 120 °, second earrings（27）On lubricating cup（30）With piston rod（1）In 90 °.

3. a kind of excavator bucket oil cylinder according to claim 1, it is characterised in that：The preceding hydraulic fluid port（7）After described Hydraulic fluid port（8）It is each provided at cylinder body（3）Close to cylinder bottom（5）One end on.

4. a kind of excavator bucket oil cylinder according to claim 3, it is characterised in that：The preceding hydraulic fluid port（7）Pass through oil pipe （31）Connection auxiliary hydraulic fluid port（32）, the auxiliary hydraulic fluid port（32）With rod chamber（9）Connection.

5. a kind of excavator bucket oil cylinder according to claim 1, it is characterised in that：The preceding hydraulic fluid port（7）After described Hydraulic fluid port（8）Entrance be all provided with there are two chamfering, chamfering is 15 ° and 45 °.

6. a kind of excavator bucket oil cylinder according to claim 1, it is characterised in that：The cylinder bottom（5）With described second Earrings（27）It is integrally formed.

7. a kind of excavator bucket oil cylinder according to claim 1, it is characterised in that：The cylinder body（3）Internal diameter is 85mm, 1 a diameter of 55mm of the piston rod.

8. a kind of excavator bucket oil cylinder according to claim 7, it is characterised in that：The cylinder body（3）With the piston Bar（1）Reel ranging from 925-1524mm.

9. a kind of excavator bucket oil cylinder according to claim 1, it is characterised in that：The piston（4）Stroke be 600mm。