CN211009349U

CN211009349U - Be applied to hydro-cylinder that has protector of excavator

Info

Publication number: CN211009349U
Application number: CN201921281678.6U
Authority: CN
Inventors: 张伟伟; 周志南; 毕书明
Original assignee: Pacoma China Hydraulic Equipment Co ltd
Current assignee: Pacoma China Hydraulic Equipment Co ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-07-14
Anticipated expiration: 2029-08-08

Abstract

The utility model discloses an oil cylinder with a protective device, which is applied to an excavator and comprises an oil cylinder body and a hydraulic rod, the oil cylinder body is in transmission connection with the hydraulic rod, a first thick pipe is sleeved outside the oil cylinder body, the inner cavity of the first thick pipe is movably connected with a first round pipe, the right side wall of the first thick pipe is provided with a through hole matched with the first round pipe, the right side wall of the first round pipe passes through the through hole and extends out of the first thick pipe, the inner wall of the first round pipe is contacted with the outer wall of the oil cylinder body, the right inner wall of the first round pipe is contacted with the right side wall of the hydraulic rod, the left side wall of the first thick pipe is movably connected with a cover plate, and the spacing spring of fixedly connected with on the right side lateral wall of apron, the right-hand member fixedly connected with limiting plate of spacing spring, the utility model discloses a series of structures make this device have characteristics such as the protecting effect is good and stability is good.

Description

Be applied to hydro-cylinder that has protector of excavator

Technical Field

The utility model relates to a hydro-cylinder technical field specifically is a be applied to hydro-cylinder that has protector of excavator.

Background

The oil cylinder plays a role as an actuator in a working device as a common component in an excavator, and is divided into a boom cylinder, a bucket bar cylinder, and a bucket cylinder. Under the mutual cooperation of these three types of hydro-cylinders, make the excavator possess powerful digging force, wherein the thrust that the scraper bowl hydro-cylinder provided accounts for the overwhelming proportion of utensil digging force, and the scraper bowl hydro-cylinder is hydraulic cylinder, drive the hydraulic stem in the course of the work, the scraper bowl hydro-cylinder on the excavator exposes usually to work under the open air environment, and do not have safeguard measure on the hydro-cylinder, this just makes hydro-cylinder and hydraulic stem easy collision and stained by the material, thereby can produce very big influence to the use of hydro-cylinder, can lead to the damage of hydro-cylinder even, cause very big economic loss, simultaneously, the hydro-cylinder drives the hydraulic stem and can produce vibrations in the course of the work, lead to the poor stability of hydro-cylinder and hydraulic stem, therefore we have proposed a hydro-cylinder with protector who is applied to the excavator.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming defects such as prior art's protecting effect is poor and poor stability, provide a be applied to the hydro-cylinder that has protector of excavator. The oil cylinder with the protection device applied to the excavator has the characteristics of good protection effect, good stability and the like.

In order to achieve the above object, the utility model provides a following technical scheme: an oil cylinder with a protective device applied to an excavator comprises an oil cylinder body and a hydraulic rod, wherein the oil cylinder body is in transmission connection with the hydraulic rod, a first thick pipe is sleeved outside the oil cylinder body, a first round pipe is movably connected to an inner cavity of the first thick pipe, a through hole matched with the first round pipe is formed in the right side wall of the first thick pipe, the right side wall of the first round pipe penetrates through the through hole and extends out of the first thick pipe, the inner wall of the first round pipe is in contact with the outer wall of the oil cylinder body, the right side inner wall of the first round pipe is in contact with the right side wall of the hydraulic rod, a cover plate is movably connected to the left side wall of the first thick pipe, a limiting spring is fixedly connected to the right side wall of the cover plate, a limiting plate is fixedly connected to the right end of the limiting spring, a first rubber protective pad is fixedly connected to the right side wall of the limiting plate, and the side wall of the first rubber protective, top and the below of hydro-cylinder body swing joint respectively have arc splint, and arc splint and hydro-cylinder body relative one side lateral wall on fixedly connected with and hydro-cylinder body external diameter assorted second rubber protection pad, on the top of first thick pipe and the bottom respectively fixedly connected with T shape pole, and the cover is equipped with the loose ring on the T shape pole, be close to right side department respectively fixedly connected with riser on the top of first pipe and the bottom, and on the left side lateral wall of riser and on the right side lateral wall of loose ring respectively fixedly connected with fixed block, there is the connecting rod through pivot and bearing swing joint on the antetheca of riser, and the back wall of connecting rod is close to top department through pivot and bearing and the loose ring on the fixed block antetheca swing joint.

Preferably, be close to the thick pipe of top fixedly connected with second respectively of punishment bottom on the right side lateral wall of first thick pipe, and the thick intraductal cover of second is equipped with the movable rod, set up on the right side lateral wall of the thick pipe of second with movable rod assorted through-hole, and the right-hand member of movable rod passes the through-hole and extends to the thick outside of the pipe of second with the lateral wall fixed connection of riser, fixedly connected with square on the left side inner wall of the thick pipe of second, and fixedly connected with compression spring between the right side lateral wall of square and the left side lateral wall of movable rod, be close to left side department swing joint respectively gyro wheel on the top of movable rod and the bottom, and the lateral wall of gyro wheel contacts with the inner wall of the thick pipe of second.

Preferably, on the lateral wall of one side that connecting rod and first thick pipe are relative and on the top of first thick pipe respectively fixedly connected with installation piece, and have first pin through pivot and bearing swing joint on the installation piece back wall on the first thick pipe, first pin overcoat is equipped with expanding spring and second pipe, and the bottom of expanding spring and the installation piece top fixed connection on the first thick pipe, expanding spring's top and the bottom fixed connection of second pipe, and the second pipe is through pivot and bearing swing joint with the installation piece back wall on one side that expanding spring kept away from mutually and the connecting rod.

Preferably, be close to top and bottom punishment fixedly connected with inserted bar respectively on the right side lateral wall of apron, and seted up on the left side lateral wall of first thick pipe with inserted bar assorted slot, install the bolt on the top and the bottom of first thick pipe, and seted up on the lateral wall of inserted bar with bolt assorted bolt hole.

Preferably, the top and the bottom of the first circular tube are respectively and fixedly connected with connecting pieces, a round rod is movably connected to the rear wall of one side, far away from the oil cylinder body, of the connecting pieces through a rotating shaft and a bearing, a sliding block is fixedly connected to one end, opposite to the first thick tube, of the round rod, and a sliding groove matched with the sliding block is formed in the inner wall of the first thick tube.

Preferably, fixedly connected with straight board on the arc splint and the relative one side lateral wall of first thick pipe, and be close to the flexible pull rod of left and right sides department difference fixedly connected with between straight board and the first thick pipe, the top and the bottom of first thick pipe are provided with T shape threaded rod outward respectively, and offer respectively on the top of first thick pipe and the bottom with T shape threaded rod assorted screw hole, T shape threaded rod passes the screw hole and extends to the lateral wall with straight board in the first thick pipe and passes through bearing swing joint with the relative one end of first thick pipe.

Preferably, the telescopic pull rod comprises a third thick pipe and a second thin rod, and the second thin rod is connected in the third thick pipe in a sliding mode.

Preferably, the top and the bottom of first thick pipe are close to left and right sides department fixedly connected with erection joint board respectively, and seted up the screw hole on the antetheca of erection joint board, and the screw hole interpolation has the screw.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a mutually supporting between first thick pipe and the first pipe to can realize carrying out effectual protection to hydro-cylinder body and hydraulic stem, bump and stained to hydro-cylinder body and hydraulic stem when preventing that the material from dropping, and then improve the life of hydro-cylinder body and hydraulic stem.

2. The utility model discloses a T shape pole, the loose ring, the connecting rod, the second pipe, mutually support between first thin pole and the expanding spring, can effectually improve the mutual stability between first thick pipe and the first pipe, and then can improve hydro-cylinder body and hydraulic stem work efficiency, through the loose rod, the gyro wheel, mutually support between second thick pipe and the compression spring, can realize the stability of first pipe when the side-to-side motion, reduce the produced vibrations of hydraulic stem in the course of the work simultaneously, and then the effectual stability of hydraulic stem when the side-to-side motion that has improved.

3. The utility model discloses a T shape threaded rod, flexible pull rod, arc splint, first rubber protection pad, second rubber protection pad, apron, spacing spring and the bolt between mutually support, can realize convenient installing and dismantling hydro-cylinder body and hydraulic stem, fix the hydro-cylinder body simultaneously and reduce the produced vibrations of hydro-cylinder body in the course of the work, the effectual stability that improves its during operation.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional side view of the present invention;

FIG. 3 is an enlarged view of FIG. 1 at A;

fig. 4 is an enlarged view of fig. 1 at B.

Reference numbers in the figures: 1. an oil cylinder body; 2. a hydraulic lever; 3. a first wide tube; 4. a first circular tube; 5. a cover plate; 6. a limiting spring; 7. a limiting plate; 8. a T-shaped rod; 9. a movable ring; 10. a vertical plate; 11. a connecting rod; 12. a round bar; 13. a T-shaped threaded rod; 14. a straight plate; 15. a telescopic pull rod; 16. mounting a connecting plate; 17. a first thin rod; 18. a tension spring; 19. a second circular tube; 20. a second wide tube; 21. a movable rod; 22. a compression spring; 23. a roller; 24. an arc-shaped splint.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an oil cylinder with a protective device applied to an excavator comprises an oil cylinder body 1 and a hydraulic rod 2, wherein the oil cylinder body 1 is in transmission connection with the hydraulic rod 2, a first thick pipe 3 is sleeved outside the oil cylinder body 1, the inner cavity of the first thick pipe 3 is movably connected with a first round pipe 4, a through hole matched with the first round pipe 4 is formed in the right side wall of the first thick pipe 3, the right side wall of the first round pipe 4 penetrates through the through hole and extends out of the first thick pipe 3, the inner wall of the first round pipe 4 is in contact with the outer wall of the oil cylinder body 1, the right side inner wall of the first round pipe 4 is in contact with the right side wall of the hydraulic rod 2, so that the oil cylinder body 1 and the hydraulic rod 2 can be effectively protected, collision and fouling of the oil cylinder body 1 and the hydraulic rod 2 when materials fall off are prevented, the service lives of the oil cylinder body 1 and the hydraulic rod 2 are prolonged, a cover plate 5 is movably connected onto the left side wall of the first, and the right side wall of the cover plate 5 is fixedly connected with a limiting spring 6, the right end of the limiting spring 6 is fixedly connected with a limiting plate 7, the right side wall of the limiting plate 7 is fixedly connected with a first rubber protecting pad, the side wall of the first rubber protecting pad is contacted with the left side wall of the oil cylinder body 1, the upper part and the lower part of the oil cylinder body 1 are respectively and movably connected with an arc-shaped clamping plate 24, and the side wall of the arc-shaped clamping plate 24 opposite to the oil cylinder body 1 is fixedly connected with a second rubber protecting pad matched with the outer diameter of the oil cylinder body 1, so that the oil cylinder body 1 and the hydraulic rod 2 can be conveniently installed and disassembled, the oil cylinder body 1 is fixed and the vibration generated in the working process is reduced, the working stability of the oil cylinder is effectively improved, the top and the bottom of the first thick pipe 3 are respectively and fixedly connected with a T-shaped rod 8, and a movable ring 9, the top and the bottom of the first round pipe 4 near the right side are respectively and fixedly connected with a vertical plate 10, the left side wall of the vertical plate 10 and the right side wall of the movable ring 9 are respectively and fixedly connected with a fixed block, the front wall of the vertical plate 10 is movably connected with a connecting rod 11 through a rotating shaft and a bearing, and the rear wall of the connecting rod 11 near the top is movably connected with the front wall of the fixed block on the movable ring 9 through a rotating shaft and a bearing;

the right side wall of the first thick pipe 3 is fixedly connected with a second thick pipe 20 near the top and the bottom respectively, a movable rod 21 is sleeved in the second thick pipe 20, a through hole matched with the movable rod 21 is formed in the right side wall of the second thick pipe 20, the right end of the movable rod 21 penetrates through the through hole and extends out of the second thick pipe 20 to be fixedly connected with the side wall of the vertical plate 10, a square block is fixedly connected to the left side inner wall of the second thick pipe 20, a compression spring 22 is fixedly connected between the right side wall of the square block and the left side wall of the movable rod 21, rollers 23 are movably connected to the positions near the left side on the top and the bottom of the movable rod 21 respectively, and the side wall of the roller 23 is in contact with the inner wall of the second thick pipe 20, so that the stability of the first circular pipe 4 during left-right movement can be realized, meanwhile, the vibration generated by the hydraulic rod 2 during working process is reduced, and the stability of the hydraulic rod 2 during left, the side wall of the connecting rod 11 opposite to the first thick pipe 3 and the top of the first thick pipe 3 are respectively fixedly connected with an installation block, the rear wall of the installation block on the first thick pipe 3 is movably connected with a first thin rod 17 through a rotating shaft and a bearing, the first thin rod 17 is sleeved with an extension spring 18 and a second circular tube 19, the bottom end of the extension spring 18 is fixedly connected with the top of the installation block on the first thick pipe 3, the top end of the extension spring 18 is fixedly connected with the bottom of the second circular tube 19, the mutual stability between the first thick pipe 3 and the first circular tube 4 can be effectively improved, the working efficiency of the oil cylinder body 1 and the hydraulic rod 2 can be further improved, the side of the second circular tube 19 far away from the extension spring 18 is movably connected with the rear wall of the installation block on the connecting rod 11 through the rotating shaft and the bearing, inserting rods are respectively and fixedly connected with the side wall of the cover plate 5 close to the top and the bottom, and the left side wall of the first thick pipe 3 is provided with a slot matched with the inserted bar, the top and the bottom of the first thick pipe 3 are provided with inserted pins, the side wall of the inserted bar is provided with inserted pin holes matched with the inserted pins, the top and the bottom of the first round pipe 4 are respectively fixedly connected with connecting sheets, the back wall of one side of the connecting sheet far away from the oil cylinder body 1 is movably connected with a round bar 12 through a rotating shaft and a bearing, one end of the round bar 12 opposite to the first thick pipe 3 is fixedly connected with a slide block, the inner wall of the first thick pipe 3 is provided with a slide groove matched with the slide block, one side wall of the arc-shaped clamping plate 24 opposite to the first thick pipe 3 is fixedly connected with a straight plate 14, the parts near the left side and the right side between the straight plate 14 and the first thick pipe 3 are respectively and fixedly connected with a telescopic pull rod 15, the top and the bottom of the first thick pipe 3 are respectively provided with a T-shaped threaded rod 13, and the top and the bottom of the first thick pipe 3, t shape threaded rod 13 passes the screw hole and extends to in first thick pipe 3 and pass through bearing swing joint with straight board 14's lateral wall with the relative one end of first thick pipe 3, flexible pull rod 15 includes thick pipe of third and the thin pole of second, and the thin pole of second is at thick intraductal sliding connection of third, be close to on the top of first thick pipe 3 and the bottom respectively fixedly connected with mounting plate 16 of left and right sides punishment, and seted up the screw hole on mounting plate 16's the antetheca, the screw hole interpolation has the screw.

The working principle is as follows: when the utility model is used, firstly the bolt is pulled out, the cover plate 5 is unscrewed and taken down, the oil cylinder body 1 and the hydraulic rod 2 are arranged in the first thick pipe 3 and extend into the first round pipe 4, so that the right end of the hydraulic rod 2 is contacted with the inner wall of the right side of the first round pipe 4, the T-shaped threaded rod 13 is twisted clockwise, the arc-shaped clamping plate 24 moves towards the outer wall of the oil cylinder body 1, at the moment, the second thin rod on the telescopic pull rod 15 is stretched towards the oil cylinder body 1 in the third thick pipe, thereby realizing the effective protection of the oil cylinder body 1 and the hydraulic rod 2, preventing the collision and the contamination of the oil cylinder body 1 and the hydraulic rod 2 when the material drops, further prolonging the service life of the oil cylinder body 1 and the hydraulic rod 2, after the arc-shaped clamping plate 24 clamps the outer wall of the oil cylinder body 1, the T-shaped threaded rod 13 is stopped to be twisted, the cover plate 5 is covered, the bolt is inserted, at the moment, the first rubber protection pad on, the limiting spring 6 is in a compressed state, so that the oil cylinder body 1 and the hydraulic rod 2 can be conveniently and rapidly installed and detached, meanwhile, the oil cylinder body 1 is fixed, the vibration generated in the working process of the oil cylinder body 1 is reduced, the stability of the oil cylinder body is effectively improved, the installation connecting plate 16 is attached to the installation position on the excavator, the first thick pipe 3 is fixed through screws, when the oil cylinder body 1 and the hydraulic rod 2 work, the oil cylinder body 1 drives the hydraulic rod 2 to move left and right, so that the first round pipe 4 slides left and right in the first thick pipe 3, when the first thick pipe 3 slides left and right, the connecting rod 11 is stressed, the included angle between the connecting rod 11 and the vertical plate 10 is increased or reduced through the deflection of the rotating shaft and the bearing, so that the connecting rod 11 can drive the movable ring 9 to move upwards or downwards on the T-shaped rod 8, and in the process, the first thin rod 17 and the second round pipe 19 deflect through the rotating shaft and the bearing, make second pipe 19 downward or upward movement on first thin pole 17, expanding spring 18 is in compression or tensile state, thereby effectual mutual stability between first thick pipe 3 and the first pipe 4 of having improved, and then can improve the work efficiency of hydro-cylinder body 1 and hydraulic stem 2, and meanwhile, movable rod 21 passes through gyro wheel 23 and slides left or right in the thick pipe 20 of second, compression spring 22 is in compression or tensile state, thereby can realize the stability of first pipe 4 when the side-to-side motion, reduce the produced vibrations of hydraulic stem 2 in the course of the work simultaneously, and then the effectual stability of hydraulic stem 2 when the side-to-side motion that has improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an be applied to hydro-cylinder that has protector of excavator, includes hydro-cylinder body (1) and hydraulic stem (2), and the transmission is connected its characterized in that between hydro-cylinder body (1) and hydraulic stem (2): the outer sleeve of the oil cylinder body (1) is provided with a first thick pipe (3), the inner cavity of the first thick pipe (3) is movably connected with a first round pipe (4), a through hole matched with the first round pipe (4) is formed in the right side wall of the first thick pipe (3), the right side wall of the first round pipe (4) penetrates through the through hole and extends out of the first thick pipe (3), the inner wall of the first round pipe (4) is in contact with the outer wall of the oil cylinder body (1), the right side inner wall of the first round pipe (4) is in contact with the right side wall of the hydraulic rod (2), the left side wall of the first thick pipe (3) is movably connected with a cover plate (5), the right side wall of the cover plate (5) is fixedly connected with a limiting spring (6), the right end of the limiting spring (6) is fixedly connected with a limiting plate (7), and the right side wall of the limiting plate (7) is fixedly connected with a first rubber protective pad, and the side wall of the first rubber protection pad is contacted with the left side wall of the oil cylinder body (1), the upper part and the lower part of the oil cylinder body (1) are respectively and movably connected with an arc-shaped clamping plate (24), and the side wall of one side of the arc-shaped clamping plate (24) opposite to the oil cylinder body (1) is fixedly connected with a second rubber protection pad matched with the outer diameter of the oil cylinder body (1), the top and the bottom of the first thick pipe (3) are respectively and fixedly connected with a T-shaped rod (8), a movable ring (9) is sleeved on the T-shaped rod (8), the positions close to the right side on the top and the bottom of the first circular pipe (4) are respectively and fixedly connected with a vertical plate (10), the left side wall of the vertical plate (10) and the right side wall of the movable ring (9) are respectively and fixedly connected with fixed blocks, the front wall of the vertical plate (10) is, and the rear wall of the connecting rod (11) is movably connected with the front wall of the fixed block on the movable ring (9) through a rotating shaft and a bearing at the position close to the top.

2. The cylinder with the protection device applied to the excavator according to claim 1, wherein: be close to the thick pipe of top fixedly connected with second (20) respectively of bottom punishment on the right side lateral wall of first thick pipe (3), and the thick pipe of second (20) endotheca is equipped with movable rod (21), set up on the right side lateral wall of the thick pipe of second (20) with movable rod (21) assorted through-hole, and the right-hand member of movable rod (21) passes the through-hole and extends to the thick pipe of second (20) outer with the lateral wall fixed connection of riser (10), fixedly connected with square on the left side inner wall of the thick pipe of second (20), and fixedly connected with compression spring (22) between the right side lateral wall of square and the left side lateral wall of movable rod (21), be close to left side department respectively swing joint have gyro wheel (23) on the top of movable rod (21) and the bottom, and the lateral wall of gyro wheel (23) contacts with the inner wall of the thick pipe of second (20).

3. The cylinder with the protection device applied to the excavator according to claim 1, wherein: connecting rod (11) and first thick pipe (3) relative one side lateral wall on with on the top of first thick pipe (3) respectively fixedly connected with installation piece, and have first thin pole (17) through pivot and bearing swing joint on the installation piece back wall on first thick pipe (3), first thin pole (17) overcoat is equipped with expanding spring (18) and second pipe (19), and the bottom of expanding spring (18) and the installation piece top fixed connection on first thick pipe (3), the top of expanding spring (18) and the bottom fixed connection of second pipe (19), and second pipe (19) and expanding spring (18) keep away from one side mutually and the installation piece back wall on connecting rod (11) through pivot and bearing swing joint.

4. The cylinder with the protection device applied to the excavator according to claim 1, wherein: the novel pipe joint is characterized in that the right side wall of the cover plate (5) is close to the top and the bottom, the insertion rods are fixedly connected with the right side wall of the cover plate respectively, slots matched with the insertion rods are formed in the left side wall of the first thick pipe (3), bolts are installed on the top and the bottom of the first thick pipe (3), and bolt holes matched with the bolts are formed in the side wall of the insertion rods.

5. The cylinder with the protection device applied to the excavator according to claim 1, wherein: the oil cylinder is characterized in that connecting pieces are fixedly connected to the top and the bottom of the first circular tube (4) respectively, a circular rod (12) is movably connected to the rear wall of one side, far away from the oil cylinder body (1), of the connecting pieces through a rotating shaft and a bearing, a sliding block is fixedly connected to one end, opposite to the first thick tube (3), of the circular rod (12), and a sliding groove matched with the sliding block is formed in the inner wall of the first thick tube (3).

6. The cylinder with the protection device applied to the excavator according to claim 1, wherein: arc splint (24) and first thick pipe (3) relative one side lateral wall on fixedly connected with straight board (14), and be close to left and right sides department respectively fixedly connected with telescopic pull rod (15) between straight board (14) and first thick pipe (3), the top and the bottom of first thick pipe (3) are provided with T shape threaded rod (13) outward respectively, and offer respectively on the top of first thick pipe (3) and the bottom with T shape threaded rod (13) assorted screw hole, T shape threaded rod (13) pass the screw hole and extend to in first thick pipe (3) and pass through bearing swing joint with the lateral wall of straight board (14) with first thick pipe (3) relative one end.

7. The cylinder with the protection device applied to the excavator according to claim 6, wherein: the telescopic pull rod (15) comprises a third thick pipe and a second thin rod, and the second thin rod is connected with the third thick pipe in a sliding mode.

8. The cylinder with the protection device applied to the excavator according to claim 1, wherein: the novel pipe fitting is characterized in that the positions, close to the left side and the right side, of the top and the bottom of the first thick pipe (3) are respectively and fixedly connected with mounting and connecting plates (16), screw holes are formed in the front walls of the mounting and connecting plates (16), and screws are inserted into the screw holes.