CN207715471U - A kind of bucket rod cylinder of excavator - Google Patents

Abstract

The utility model discloses a kind of bucket rod cylinder of excavator, 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, weld guide holder in the open end of cylinder body, it is stepped cylinder that piston rod, which is placed in one end end in cylinder body, piston rod, which is placed on one end outside cylinder body, connects the first earrings, cylinder bottom is equipped with the second earrings, it is equipped with lubricating cup on first earrings and the second earrings, cylinder bottom side is equipped with rear hydraulic fluid port, guide holder side is equipped with preceding hydraulic fluid port, the middle part of the corresponding guide sleeve of preceding hydraulic fluid port is equipped with radial through-hole, the input end of epicoele oil pipe component is placed in cylinder bottom side, and it is symmetrical arranged with lower cavity oil pipe component, cylinder body is equipped with anchor ear close to one end of cylinder bottom, anchor ear is equipped with briquetting, briquetting is clamped epicoele oil pipe component, it is divided into rod chamber and rodless cavity in cylinder body, preceding hydraulic fluid port is connected to the rod chamber, hydraulic fluid port is connected to the rodless cavity afterwards.The utility model advantage has：Simple in structure, stability is good, capable of expansion and contraction.

Description

A kind of bucket rod cylinder of excavator

Technical field

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

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 arm 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 arm cylinder.

In order to achieve the above object, the technical solution adopted in the present invention is：A kind of bucket rod cylinder of excavator, 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 Guide holder is welded, the guide holder is coaxially disposed with cylinder body, and internal diameter is identical, and the guide holder connects guide sleeve, described to lead Include front, middle part and rear portion to set, the rear portion outer wall coordinates with guide holder inner wall sealing, and the central raised setting is convex Origin or beginning is against on the open end of guide holder, and the middle part is connect by hexagon socket cap head screw with guide holder, in the front Wall coordinates with the sealing of piston rod outer wall, and the rear portion outer wall is equipped with the first O-ring seals, is equipped with successively in the front inner wall Hole baffle ring, the first dustband, axle sealing ring, bumper ring, sliding shaft sleeve and hole elastic spring, the piston rod are placed in cylinder One end end in body is stepped cylinder, is arranged with epicoele cushion collar, piston and cavity of resorption cushion collar, the epicoele buffering successively It is arranged on the piston rod, and one end is supported on the piston rod, the other end is against on one end of piston, in the epicoele cushion collar Wall coordinates with the sealing of piston rod outer wall, and the epicoele cushion collar can be fastened on rear inner wall and the work at the rear portion of the guide sleeve Between stopper rod outer wall there are gap in, the piston inner wall be equipped with the second O-ring seals, the piston outer wall front and cylinder Body inner wall sealing coordinate, on the outer wall successively be equipped with first receive dirty ring, first molding guide ring, hole sealing ring, second be molded Guide ring and second receives dirty ring, and there are gaps with inboard wall of cylinder block at the piston outer wall rear portion, is equipped with tapped through hole, institute on the outer wall Steel ball built in tapped through hole is stated, the tapped through hole is threadedly coupled interior hexagonal holding screw, and the interior hexagonal holding screw is against On steel ball, the steel ball is against in the groove of piston rod, and the cavity of resorption cushion collar inner wall coordinates with the sealing of piston rod outer wall, described It is equipped with retainer ring between cavity of resorption cushion collar and the piston, buffering is equipped between plunger rod contacts face in the middle part of the cavity of resorption cushion collar Ring, cavity of resorption cushion collar end portion are clamped with piston rod by baffle ring, 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 the second dustband, and lubricating cup is equipped on first earrings and second earrings, and the cylinder bottom side is equipped with Hydraulic fluid port afterwards, the rear hydraulic fluid port pass through hexagon socket cap head screw and connect lower cavity oil pipe component, the rear corresponding cylinder bottom side of hydraulic fluid port Portion position is equipped with radial blind holes, and the cylinder bottom is axially arranged with a counterbore, and the counterbore is connected with radial blind holes, the counterbore The outer wall sealing of inner wall and the cavity of resorption cushion collar coordinate, the guide holder side is equipped with preceding hydraulic fluid port, and the preceding hydraulic fluid port passes through Hexagon socket cap head screw connects epicoele oil pipe component, and the middle part of the corresponding guide sleeve of the preceding hydraulic fluid port is equipped with radial through-hole, institute The input end for stating epicoele oil pipe component is placed in cylinder bottom side, and is symmetrical arranged with lower cavity oil pipe component, and the cylinder body is close to cylinder The one end at bottom is equipped with anchor ear, and the anchor ear is equipped with briquetting, and the briquetting is clamped epicoele oil pipe component, is divided into the cylinder body Rod chamber and rodless cavity, the preceding hydraulic fluid port are connected to the rod chamber, and the rear hydraulic fluid port is connected to the rodless cavity.

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

Further, the lubricating cup on first earrings and piston rod axis are in 60 °, the lubricating cup on second earrings with Piston rod axis is in 0 °.

Further, the cylinder diameter is 135mm, and the diameter of piston rod is 95mm.

Further, the cylinder body and the piston rod reel ranging from 2108-3648mm.

Further, the stroke of the piston is 1540mm.

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 bucket rod cylinder of excavator of the present invention.

Fig. 2 is a kind of structural representation overhead sectional view of bucket rod cylinder of excavator of the present invention.

Fig. 3 is a kind of structural representation right view of bucket rod cylinder of excavator of the present invention.

1. piston rod in the figure, 2. cylinder bodies, 3. pistons, 4. cylinder bottoms, 5. guide holders, 6. fronts, 7. middle parts, 8. rear portions, 9. First O-ring seals, 10. hole baffle rings, 11. first dustbands, 12. axle sealing rings, 13. bumper rings, 14. sliding shaft sleeves, 15. hole elastic spring, 16. epicoele cushion collars, 17. cavity of resorption cushion collars, 18. second O-ring seals, 19. first receive dirty ring, 20. the first molding guide ring, 21. hole sealing rings, 22. second molding guide rings, 23. second receive dirty ring, 24. tapped through holes, 25. steel ball, hexagonal holding screw in 26., 27. snap rings, 28. buffering rings, 29. baffle rings, 30. first earrings, 31. second earrings, 32. axle sleeve, 33. second dustbands, 34. lubricating cups, hydraulic fluid port after 35., 36. lower cavity oil pipe components, 37. radial blind holes, 38. counterbores, Hydraulic fluid port before 39., 40. epicoele oil pipe components, 41. radial through-hole, 42. anchor ears, 43. briquettings, 44. rod chambers, 45. rodless cavities.

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 figs. 1 to 3,1. piston rod, 2. cylinder bodies, 3. pistons, 4. cylinder bottoms, 5. guide holders, 6. fronts, 7. middle parts, 8. Rear portion, 9. first O-ring seals, 10. hole baffle rings, 11. first dustbands, 12. axle sealing rings, 13. bumper rings, 14. slide Moving axis set, 15. hole elastic springs, 16. epicoele cushion collars, 17. cavity of resorption cushion collars, 18. second O-ring seals, 19. first receive Dirty ring, 20. first molding guide rings, 21. hole sealing rings, 22. second molding guide rings, 23. second receive dirty ring, 24. screw threads Through-hole, 25. steel balls, hexagonal holding screw in 26., 27. snap rings, 28. buffering rings, 29. baffle rings, 30. first earrings, 31. second Earrings, 32. axle sleeves, 33. second dustbands, 34. lubricating cups, hydraulic fluid port after 35., 36. lower cavity oil pipe components, 37. radial blind holes, 38. Counterbore, hydraulic fluid port before 39., 40. epicoele oil pipe components, 41. radial through-hole, 42. anchor ears, 43. briquettings, 44. rod chambers, 45. without bar Chamber.

A kind of bucket rod cylinder of excavator, it is characterised in that：Including piston rod 1, guide sleeve, cylinder body 2, piston 3 and cylinder bottom 4, The wherein one end of cylinder body 2 is sealed by cylinder bottom 4, and guide holder 5 is welded in the open end of cylinder body 2, and guide holder 5 is coaxially disposed with cylinder body 2, and Internal diameter is identical, and guide holder 5 connects guide sleeve, and guide sleeve includes front 6, middle part 7 and rear portion 8,8 outer wall of rear portion in guide holder 5 Wall sealing cooperation, 7 protrusion setting of middle part, protruding end are against on the open end of guide holder 5, and middle part 7 passes through interior hexagonal cylindrical head spiral shell Nail is connect with guide holder 5, and 6 inner wall of front coordinates with the sealing of 1 outer wall of piston rod, and 8 outer wall of rear portion is equipped with the first O-ring seals 9, Hole baffle ring 10, the first dustband 11, axle sealing ring 12, bumper ring 13,14 and of sliding shaft sleeve are equipped on 6 inner wall of front successively Hole elastic spring 15, it is stepped cylinder that piston rod 1, which is placed in one end end in cylinder body, is arranged with epicoele cushion collar successively 16, piston 3 and cavity of resorption cushion collar 17, epicoele cushion collar 16 are set on piston rod 1, and one end is against on piston rod 1, another End is against on one end of piston 3, and 16 inner wall of epicoele cushion collar coordinates with the sealing of 1 outer wall of piston rod, and epicoele cushion collar 16 can block Close between 1 outer wall of inner wall and piston rod at the rear portion of guide sleeve 8 there are gap in, 3 inner wall of piston be equipped with the 2nd O shapes it is close Seal 18,3 outer wall front of piston and 2 inner wall sealing of cylinder body coordinate, and are equipped with first successively on the outer wall and receive the molding of dirty ring 19, first Guide ring 20, hole sealing ring 21, second are molded guide ring 22 and second and receive dirty ring 23,3 external rear wall of piston and 2 inner wall of cylinder body There are gaps, are equipped with tapped through hole 24, steel ball 25 built in tapped through hole 24 on the outer wall, and tapped through hole 24 is threadedly coupled interior hexagonal Holding screw 26, interior hexagonal holding screw 26 are against on steel ball 25, and steel ball 25 is against in the groove of piston rod 1, cavity of resorption cushion collar The sealing of 17 inner walls and 1 outer wall of piston rod coordinates, and is equipped with retainer ring 27 between cavity of resorption cushion collar 17 and piston 3, in cavity of resorption cushion collar 17 Buffering ring 28 is equipped between 1 contact surface of portion and piston rod, 17 end portion of cavity of resorption cushion collar is clamped with piston rod 1 by baffle ring 29, living The first earrings 30 is connected on one end that stopper rod 1 is placed in outside cylinder body 2, cylinder bottom 4 is equipped with the second earrings 31, the first earrings 30 and institute 31 equal inner sleeve 32 of the second earrings is stated, 32 both ends of axle sleeve are equipped with the second dustband 33, the first earrings 30 and second ear Lubricating cup 34 is equipped on ring 31,4 side of cylinder bottom is equipped with rear hydraulic fluid port 35, and rear hydraulic fluid port 35 connects cavity of resorption by hexagon socket cap head screw Oil pipe component 36,35 corresponding cylinder bottom of rear hydraulic fluid port, 4 side locations are equipped with radial blind holes 37, and cylinder bottom 4 is axially arranged with a counterbore 38, Counterbore 38 is connected with radial blind holes 37, and the inner wall of counterbore 38 coordinates with the outer wall sealing of cavity of resorption cushion collar 17,5 side of guide holder Equipped with preceding hydraulic fluid port 39, preceding hydraulic fluid port 39 connects epicoele oil pipe component 40 by hexagon socket cap head screw, and preceding hydraulic fluid port 39 is corresponding to lead It is equipped with radial through-hole 41 to the middle part 7 of set, the input end of epicoele oil pipe component 40 is placed in 4 side of cylinder bottom, and and lower cavity oil pipe Component 36 is symmetrical arranged, and cylinder body 2 is equipped with anchor ear 42 close to one end of cylinder bottom 4, and anchor ear 42 is equipped with briquetting 43, and briquetting 43 is clamped Epicoele oil pipe component 40 is divided into rod chamber 44 and rodless cavity 45 in cylinder body 2, and preceding hydraulic fluid port 39 is connected to rod chamber 44, rear hydraulic fluid port 35 It is connected to rodless cavity 45.

Cylinder bottom 4 and the second earrings 31 are integrally formed.

Lubricating cup 34 and 1 axis of piston rod on first earrings 30 are in 60 °, the lubricating cup 34 on the second earrings 31 and piston rod 1 Axis is in 0 °.

2 internal diameter of cylinder body is 135mm, 1 a diameter of 95mm of piston rod.

Cylinder body 2 reels ranging from 2108-3648mm with piston rod 1.

The stroke of piston 3 is 1540mm.

In use, bucket arm cylinder is installed between dipper and swing arm；Carried out bulge test in a pre-installation does not have for 24 hours There is a phenomenon where oil leaks；Capable of expansion and contraction after installation, and after practice test, cumulative activation 2000 hours is without oil leak, pressure release Situation 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 production The economic benefit of efficiency and production.

Claims (6)

1. a kind of bucket rod cylinder of excavator, it is characterised in that：Including piston rod（1）, guide sleeve, cylinder body（2）, piston（3）And cylinder Bottom（4）, the cylinder body（2）Wherein one end is by cylinder bottom（4）Sealing, the cylinder body（2）Open end weld guide holder（5）, described Guide holder（5）With cylinder body（2）Coaxial arrangement, and internal diameter is identical, the guide holder（5）Connect guide sleeve, the guide sleeve packet Include front（6）, middle part（7）The rear portion and（8）, the rear portion（8）Outer wall and guide holder（5）Inner wall sealing coordinates, the middle part（7） Protrusion setting, protruding end are against guide holder（5）Open end on, the middle part（7）Pass through hexagon socket cap head screw and guiding Seat（5）Connection, the front（6）Inner wall and piston rod（1）Outer wall sealing cooperation, the rear portion（8）Outer wall is equipped with the first O shapes Sealing ring（9）, the front（6）Hole baffle ring is equipped on inner wall successively（10）, the first dustband（11）, axle sealing ring （12）, bumper ring（13）, sliding shaft sleeve（14）And hole elastic spring（15）, the piston rod（1）It is placed in one end in cylinder body End is stepped cylinder, is arranged with epicoele cushion collar successively（16）, piston（3）With cavity of resorption cushion collar（17）, the epicoele is slow Punching set（16）It is set in piston rod（1）On, and one end is against piston rod（1）On, the other end is against piston（3）One end on, The epicoele cushion collar（16）Inner wall and piston rod（1）Outer wall sealing cooperation, the epicoele cushion collar（16）Institute can be fastened on State the rear portion of guide sleeve（8）Inner wall and piston rod（1）Between outer wall there are gap in, the piston（3）Inner wall is equipped with Second O-ring seals（18）, the piston（3）Outer wall front and cylinder body（2）Inner wall sealing coordinates, and is equipped with the successively on the outer wall One receives dirty ring（19）, first molding guide ring（20）, hole sealing ring（21）, second molding guide ring（22）Dirty ring is received with second （23）, the piston（3）External rear wall and cylinder body（2）There are gaps for inner wall, are equipped with tapped through hole on the outer wall（24）, the spiral shell Line through-hole（24）Built-in steel ball（25）, the tapped through hole（24）Hexagonal holding screw in being threadedly coupled（26）, the interior hexagonal Holding screw（26）It is against steel ball（25）On, the steel ball（25）It is against piston rod（1）Groove in, the cavity of resorption cushion collar （17）Inner wall and piston rod（1）Outer wall sealing cooperation, the cavity of resorption cushion collar（17）With the piston（3）Between be equipped with retainer ring （27）, the cavity of resorption cushion collar（17）Middle part and piston rod（1）Buffering ring is equipped between contact surface（28）, the cavity of resorption cushion collar （17）Last portion and piston rod（1）Pass through baffle ring（29）Clamping, the piston rod（1）It is placed in cylinder body（2）It is connected on external one end First earrings（30）, the cylinder bottom（4）It is equipped with the second earrings（31）, first earrings（30）With second earrings（31） Equal inner sleeve（32）, the axle sleeve（32）Both ends are equipped with the second dustband（33）, first earrings（30）With described Two earrings（31）On be equipped with lubricating cup（34）, the cylinder bottom（4）Side is equipped with rear hydraulic fluid port（35）, the rear hydraulic fluid port（35）By interior Hexagonal cylindrical head screw connects lower cavity oil pipe component（36）, the rear hydraulic fluid port（35）Corresponding cylinder bottom（4）Side locations are equipped with Radial blind holes（37）, the cylinder bottom（4）It is axially arranged with a counterbore（38）, the counterbore（38）With radial blind holes（37）It is connected, The counterbore（38）Inner wall and the cavity of resorption cushion collar（17）Outer wall sealing cooperation, the guide holder（5）Before side is equipped with Hydraulic fluid port（39）, the preceding hydraulic fluid port（39）Epicoele oil pipe component is connected by hexagon socket cap head screw（40）, the preceding hydraulic fluid port （39）The middle part of corresponding guide sleeve（7）Equipped with radial through-hole（41）, the epicoele oil pipe component（40）Input end be placed in cylinder Bottom（4）Side, and with lower cavity oil pipe component（36）It is symmetrical arranged, the cylinder body（2）Close to cylinder bottom（4）One end be equipped with embrace Hoop（42）, the anchor ear（42）It is equipped with briquetting（43）, the briquetting（43）It is clamped epicoele oil pipe component（40）, the cylinder body （2）Inside it is divided into rod chamber（44）And rodless cavity（45）, the preceding hydraulic fluid port（39）With the rod chamber（44）Connection, the rear hydraulic fluid port （35）With the rodless cavity（45）Connection.

2. a kind of bucket rod cylinder of excavator according to claim 1, it is characterised in that：The cylinder bottom（4）With described second Earrings（31）It is integrally formed.

3. a kind of bucket rod cylinder of excavator according to claim 1, it is characterised in that：First earrings（30）On oil Cup（34）With piston rod（1）Axis is in 60 °, second earrings（31）On lubricating cup（34）With piston rod（1）Axis is in 0 °.

4. a kind of bucket rod cylinder of excavator according to claim 1, it is characterised in that：The cylinder body（2）Internal diameter is 135mm, the piston rod（1）A diameter of 95mm.

5. a kind of bucket rod cylinder of excavator according to claim 4, it is characterised in that：The cylinder body（2）With the piston Bar（1）Reel ranging from 2108-3648mm.

6. a kind of bucket rod cylinder of excavator according to claim 1, it is characterised in that：The piston（3）Stroke be 1540mm。