CN209873907U

CN209873907U - Internal driving type tunnel arm

Info

Publication number: CN209873907U
Application number: CN201920328952.4U
Authority: CN
Inventors: 陈凤利; 陈叙超
Original assignee: Jiashan Xinqiang Steel Industry Co Ltd
Current assignee: Jiashan Xinqiang Steel Industry Co Ltd
Priority date: 2019-03-15
Filing date: 2019-03-15
Publication date: 2019-12-31
Anticipated expiration: 2029-03-15

Abstract

The utility model discloses an interior formula gallery arm that drives belongs to the engineering machine tool field, and its technical scheme main points are including swing arm and bucket arm, swing arm one end is articulated with the one end of bucket arm, be equipped with the cantilever pneumatic cylinder between bucket arm and the swing arm, the cantilever pneumatic cylinder both ends articulate respectively in bucket arm and swing arm, the cantilever pneumatic cylinder is located the below of bucket arm and swing arm. The utility model discloses have the reduction equipment and be under construction and tunnel upper end inner wall emergence interference effect in the tunnel.

Description

Internal driving type tunnel arm

Technical Field

The utility model relates to an engineering machine tool technical field, more specifically says, it relates to an interior formula gallery arm that drives.

Background

An excavator, also known as a digging machine, is an earth moving machine that excavates material above or below a load bearing surface with a bucket and loads it into a transport vehicle or unloads it to a stockyard. The materials excavated by the excavator mainly comprise soil, coal, silt, soil subjected to pre-loosening and rocks. In view of the development of construction machines in recent years, the development of excavators is relatively fast, and the excavator has become one of the most important construction machines in construction.

At present, the chinese patent with publication number CN1179805 discloses a linkage device for a hydraulic single bucket excavator, comprising a transmission lever and a transmission rod, wherein the transmission lever comprises a 1 st fulcrum, and the 1 st fulcrum is connected with a cantilever in a swinging and free manner through a cantilever hinge shaft; the 2 nd fulcrum, the 2 nd fulcrum is connected with cantilever drive hydraulic cylinder through the pivot shaft of cantilever top swing freely; and a 3 rd fulcrum, wherein a rocker arm hinge shaft is arranged on the 3 rd fulcrum, one end of the transmission rod is connected with the rocker arm transmission hinge shaft arranged on the rocker arm, and the other end of the transmission rod is connected with the rocker arm hinge shaft.

The above prior art solutions have the following drawbacks: a boom driving hydraulic cylinder for driving the arm to rotate is installed at an upper end of the boom, and in order to provide a sufficient rotation space and driving force for the arm, an end of the arm close to the boom is much higher than the boom, so that a structure of the upper end of the boom is large, and when the excavator is used for construction in a tunnel, the structure of the upper end of the boom is likely to interfere with an inner wall of the upper end of the tunnel, thereby making construction difficult.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an interior formula gallery arm that drives, through making the cantilever pneumatic cylinder be located the below of bucket arm and swing arm, reduce the height of gallery wall, reduce equipment and be under construction in the gallery and take place to interfere with gallery upper end inner wall, make equipment be under construction simpler in the gallery.

The utility model discloses a realize above-mentioned purpose, provide following technical scheme: the utility model provides an interior formula gallery arm that drives, includes swing arm and bucket arm, swing arm one end is articulated with the one end of bucket arm, be equipped with the cantilever pneumatic cylinder between bucket arm and the swing arm, the cantilever pneumatic cylinder both ends articulate respectively in bucket arm and swing arm, the cantilever pneumatic cylinder is located the below of bucket arm and swing arm.

By adopting the technical scheme, the cantilever hydraulic cylinder is positioned below the bucket arm and the movable arm, so that the movable arm and the bucket arm are hinged at the respective ends of the movable arm and the bucket arm, the upper end of the bucket arm cannot extend to the upper end of the movable arm, the height of the tunnel arm is reduced, the interference between the construction of equipment in the tunnel and the inner wall of the upper end of the tunnel is reduced, and the construction of the equipment in the tunnel is simpler.

The utility model discloses further set up to: the bucket arm comprises a first cantilever and a first connecting structure arranged on the first cantilever, the first connecting structure comprises a first tripod, and one end of the cantilever hydraulic cylinder is hinged to the first tripod.

Through adopting above-mentioned technical scheme, make cantilever hydraulic cylinder one end articulate on first tripod, when first cantilever and cantilever hydraulic cylinder are parallel, first tripod improves a longer arm of force to provide stronger moment of torsion for first cantilever.

The utility model discloses further set up to: the first connecting structure further comprises a first adjusting hydraulic cylinder, one end of the first tripod is hinged to the first cantilever, one end of the first adjusting hydraulic cylinder is hinged to one end of the first tripod, and three hinged points, connected with the first tripod, of the first adjusting hydraulic cylinder, the cantilever hydraulic cylinder and the second cantilever form an equilateral triangle.

Through adopting above-mentioned technical scheme, under the drive of first regulation pneumatic cylinder, make first tripod rotate to change the application of force point of cantilever pneumatic cylinder to the fill arm, thereby can change the moment of torsion that the cantilever pneumatic cylinder applyed and fill arm, also can change the rotation space of fill arm, make gallery wall use more.

The utility model discloses further set up to: the movable arm comprises a second cantilever and a second connecting structure arranged on the second cantilever, the second connecting structure comprises a second tripod, and one end, far away from the bucket arm, of the cantilever hydraulic cylinder is hinged to the second tripod.

Through adopting above-mentioned technical scheme, make cantilever pneumatic cylinder one end articulate on the second tripod, make to have certain interval between cantilever pneumatic cylinder and the second cantilever, reduce the interference between the two.

The utility model discloses further set up to: the second connecting structure further comprises a second adjusting hydraulic cylinder, one end of the second tripod is hinged to the second cantilever, one end of the second adjusting hydraulic cylinder is hinged to one end of the second tripod, and the second adjusting hydraulic cylinder, the cantilever hydraulic cylinder and the second cantilever form a triangle with three hinged points connected with the second tripod.

Through adopting above-mentioned technical scheme, can utilize the second to adjust the pneumatic cylinder drive second tripod and rotate to change the distance between cantilever pneumatic cylinder and the second cantilever, and can change the angle between cantilever pneumatic cylinder and the second cantilever, and then can realize that the contained angle towards the bottom surface between bucket arm and the movable arm is greater than 180 degrees.

The utility model discloses further set up to: the triangle formed by the second adjusting hydraulic cylinder, the cantilever hydraulic cylinder and the second cantilever and three hinge points of the second tripod is an isosceles triangle, and the hinge point of the second tripod and the second cantilever is positioned at the vertex angle of the isosceles triangle.

Through adopting above-mentioned technical scheme, when the second was adjusted the pneumatic cylinder drive second tripod and is rotated, make the pin joint between cantilever pneumatic cylinder and the second tripod have bigger turning radius and arc length, can provide more angles for the cantilever pneumatic cylinder.

The utility model discloses further set up to: and one end of the second cantilever, which is far away from the bucket arm, is bent downwards.

Through adopting above-mentioned technical scheme, the second cantilever can bear bigger power, and the second cantilever is not fragile.

The utility model discloses further set up to: the groove is formed in one end, close to the second cantilever, of the first cantilever, flat grooves are formed in two sides of one end, close to the first cantilever, of the second cantilever, the first cantilever is connected in the groove in an inserted mode, and the bottom wall of each flat groove is attached to the side wall of the corresponding groove.

Through adopting above-mentioned technical scheme, when first cantilever and second cantilever articulated, both are in the coplanar, reduce the appearance of horizontal moment of torsion, and connection structure is more stable, and equipment is because the slope of horizontal moment of torsion when reducing the construction.

To sum up, the utility model discloses following beneficial effect has:

one end of a movable arm is hinged with one end of a bucket arm, a cantilever hydraulic cylinder for driving the movable arm and the bucket arm to rotate relatively is positioned below the bucket arm and the movable arm, the height of the upper end of the tunnel wall is reduced, the interference between the construction of equipment in the tunnel and the inner wall of the upper end of the tunnel is reduced, and the construction of the equipment in the tunnel is simpler;

the two ends of the cantilever hydraulic cylinder are respectively hinged to the first cantilever and the second cantilever through the first connecting structure and the second connecting structure, and the position of the cantilever hydraulic cylinder is adjusted by utilizing the first connecting structure and the second connecting structure, so that the relative rotation angle of the first cantilever and the second cantilever and the torque applied between the first cantilever and the second cantilever are adjusted;

and thirdly, the first cantilever and the second cantilever are positioned on the same plane to be hinged, so that the horizontal torque is reduced, the connecting structure is more stable, and the inclination of the equipment due to the horizontal torque during construction is reduced.

Drawings

FIG. 1 is a perspective view of the present embodiment;

fig. 2 is an exploded view of the present embodiment for illustrating a connection structure of a first cantilever and a second cantilever;

FIG. 3 is a schematic structural diagram illustrating a first connection structure according to the present embodiment;

fig. 4 is a schematic structural diagram for showing a second connection structure in the present embodiment.

Reference numerals: 1. a movable arm; 2. a bucket arm; 3. a cantilever hydraulic cylinder; 4. a first cantilever; 5. a first connecting structure; 7. a second cantilever; 8. a second connecting structure; 9. a groove; 10. flattening the groove; 11. a first tripod; 12. a first adjusting hydraulic cylinder; 13. a first set square; 14. a first rotating shaft; 15. a first adjustment shaft; 16. a first connecting shaft; 17. a second tripod; 18. a second adjusting hydraulic cylinder; 19. a second set square; 20. a second rotating shaft; 21. a second adjustment shaft; 22. and a second connecting shaft.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): an internal drive type tunnel arm is shown in figure 1 and comprises a movable arm 1, an arm 2 and a cantilever hydraulic cylinder 3 for driving the movable arm and the arm to rotate relatively. One end of the movable arm 1 is hinged to the excavator body, and the movable arm 1 is driven to rotate by the hydraulic cylinder on the excavator body. One end of the bucket arm 2 is hinged to one end, far away from the excavator body, of the movable arm 1, two ends of the cantilever hydraulic cylinder 3 are hinged to the movable arm 1 and the bucket arm 2 respectively, and the bucket arm 2 can be driven to rotate relative to the movable arm 1 when the cantilever hydraulic cylinder 3 contracts.

As shown in fig. 1 and 2, the arm 2 includes a first arm 4 and a first connecting structure 5, and the first connecting structure 5 is installed on a side of the first arm 4 facing the ground. The boom 1 comprises a second boom 7 and a second connecting structure 8, the second connecting structure 8 being mounted on a ground-facing side of the second boom 7. The cylinder body of the cantilever hydraulic cylinder 3 is hinged to the second connecting structure 8, and the piston rod of the cantilever hydraulic cylinder 3 is hinged to the first connecting structure 5. First cantilever 4 is articulated with second cantilever 7, and first cantilever 4 is close to the one end of second cantilever 7 and has seted up fluted 9, and second cantilever 7 is close to the one end both sides of first cantilever 4 and has seted up flat slot 10, and first cantilever 4 is pegged graft in recess 9, and the diapire of flat slot 10 and the lateral wall laminating of recess 9. The two are in the same plane, reduce the appearance of horizontal moment of torsion, make the connection structure of both more stable, equipment because the slope of horizontal moment of torsion when reducing the construction. The end of the second boom 7 remote from the arm 2 is curved downwards.

As shown in fig. 3, the first connecting structure 5 includes a first tripod 11 and a first adjusting hydraulic cylinder 12. First tripod 11 includes first set-square 13, first axis of rotation 14, first regulating shaft 15 and first connecting axle 16, first set-square 13 has two and be parallel arrangement, first axis of rotation 14, first regulating shaft 15 and 16 both ends of first connecting axle are fixed connection respectively on two first set-squares 13, first axis of rotation 14, first regulating shaft 15 and first connecting axle 16 are parallel arrangement, and first axis of rotation 14, the distance between first regulating shaft 15 and first connecting axle 16 is two liang equal, first set-square 13 is equilateral triangle.

As shown in fig. 3, the first rotating shaft 14 is rotatably connected to the first cantilever 4, so that the first tripod 11 is hinged to the first cantilever 4. The first connecting shaft 16 is inserted into one end of the piston rod of the boom cylinder 3 and is rotatably connected to the first tripod 11 so that the boom cylinder 3 is hinged thereto. The cylinder body of the first adjusting hydraulic cylinder 12 is hinged to the first cantilever 4, the first adjusting shaft 15 penetrates through one end of the piston rod of the first adjusting hydraulic cylinder 12, and the first adjusting shaft and the first adjusting hydraulic cylinder are rotatably connected, so that the first tripod 11 is hinged to the first adjusting hydraulic cylinder 12. Under the drive of first regulation pneumatic cylinder 12, make first tripod 11 rotate to changed cantilever pneumatic cylinder 3 to the point of application of force of arm 2, thereby can change the moment of torsion that cantilever pneumatic cylinder 3 applyed in arm 2, also can change the rotation space of arm 2, made gallery wall use more nimble convenient.

As shown in fig. 3, the first connecting structure 5 comprises a second tripod 17 and a second adjusting hydraulic cylinder 18. The second tripod 17 includes second set square 19, second axis of rotation 20, second regulating shaft 21 and second connecting axle 22, the second tripod 17 has two and be parallel arrangement, second axis of rotation 20, second regulating shaft 21 and second connecting axle 22 both ends are fixed connection respectively on two second set squares 19, second axis of rotation 20, second regulating shaft 21 and second connecting axle 22 are parallel arrangement, and the distance between second axis of rotation 20 and the second regulating shaft 21 equals with the distance between second axis of rotation 20 and the second connecting axle 22. The second set of squares 19 is an isosceles triangle.

As shown in fig. 4, the second rotating shaft 20 is rotatably connected to the second cantilever 7, so that the second tripod 17 is hinged to the second cantilever 7. The second connecting shaft 22 is inserted into one end of the cylinder body of the boom cylinder 3, and the two are rotatably connected, so that the second tripod 17 is hinged to the boom cylinder 3. The cylinder body of the second adjusting hydraulic cylinder 18 is hinged to the second cantilever 7, the second adjusting shaft 21 penetrates one end of the piston rod of the second adjusting hydraulic cylinder 18, and the second adjusting hydraulic cylinder are rotatably connected, so that the second tripod 17 is hinged to the first adjusting hydraulic cylinder 12. The second adjusting hydraulic cylinder 18 drives the second tripod 17 to rotate, so that the distance between the boom hydraulic cylinder 3 and the second boom 7 is changed, the angle between the boom hydraulic cylinder 3 and the second boom 7 can be changed, and the included angle between the arm 2 and the boom 1 towards the bottom surface can be larger than 180 degrees.

The implementation principle of the embodiment is as follows: one end of the movable arm 1 is hinged with one end of the bucket arm 2, the cantilever hydraulic cylinder 3 which drives the movable arm 1 and the bucket arm 2 to rotate relatively is positioned below the bucket arm 2 and the movable arm 1, the height of the upper end of the tunnel wall is reduced, the interference between the construction of equipment in the tunnel and the inner wall of the upper end of the tunnel is reduced, and the construction of the equipment in the tunnel is simpler.

When the cantilever hydraulic cylinder 3 is required to provide larger force for the bucket arm 2, the first adjusting hydraulic cylinder 12 is contracted to rotate the first tripod 11, and the hinged point of the cantilever hydraulic cylinder 3 and the bucket arm 2 is moved towards the direction far away from the movable arm 1, so that the force arm of the moment applied to the bucket arm 2 by the cantilever hydraulic cylinder 3 is increased, and the moment applied to the bucket arm 2 by the cantilever hydraulic cylinder 3 is increased.

When the included angle between the bucket arm 2 and the movable arm 1, which faces the bottom surface, is required to be larger than 180 degrees, the second adjusting hydraulic cylinder 18 is made to contract, the second tripod 17 is made to rotate, the hinge point between the cantilever hydraulic cylinder 3 and the movable arm 1 is made to be far away from the second cantilever 7, the first adjusting hydraulic cylinder 12 is made to stretch, the first tripod 11 is made to rotate, the hinge point between the cantilever hydraulic cylinder 3 and the bucket arm 2 is made to move in the direction close to the movable arm 1, so that the included angle is formed between the cantilever hydraulic cylinder 3 and one end, which is close to the bucket arm 2, of the second cantilever 7, the first cantilever 4 can be driven to rotate upwards, and the included angle, which faces the bottom surface, between.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. An internal drive formula gallery arm which characterized in that: including swing arm (1) and bucket arm (2), swing arm (1) one end is articulated with the one end of bucket arm (2), be equipped with cantilever pneumatic cylinder (3) between bucket arm (2) and swing arm (1), cantilever pneumatic cylinder (3) both ends articulate respectively in bucket arm (2) and swing arm (1), cantilever pneumatic cylinder (3) are located the below of bucket arm (2) and swing arm (1).

2. An internal drive excavation arm according to claim 1, wherein: the bucket arm (2) comprises a first cantilever (4) and a first connecting structure (5) arranged on the first cantilever (4), the first connecting structure (5) comprises a first tripod (11), and one end of the cantilever hydraulic cylinder (3) is hinged to the first tripod (11).

3. An internally driven excavation arm according to claim 2, characterized in that: first connection structure (5) still include first regulation pneumatic cylinder (12), first tripod (11) one end articulates in first cantilever (4), first regulation pneumatic cylinder (12) one end articulates in the one end of first tripod (11), three pin joint that first regulation pneumatic cylinder (12), cantilever pneumatic cylinder (3) and second cantilever (7) three and first tripod (11) are connected forms equilateral triangle.

4. An internal drive excavation arm according to claim 3, wherein: the movable arm (1) comprises a second cantilever (7) and a second connecting structure (8) arranged on the second cantilever (7), the second connecting structure (8) comprises a second tripod (17), and one end, far away from the bucket arm (2), of the cantilever hydraulic cylinder (3) is hinged to the second tripod (17).

5. An internal drive excavation arm according to claim 4, wherein: the second connecting structure (8) further comprises a second adjusting hydraulic cylinder (18), one end of the second tripod (17) is hinged to the second cantilever (7), one end of the second adjusting hydraulic cylinder (18) is hinged to one end of the second tripod (17), and three hinged points, connected with the second tripod (17), of the second adjusting hydraulic cylinder (18), the cantilever hydraulic cylinder (3) and the second cantilever (7) form a triangle.

6. An internal drive excavation arm according to claim 5, wherein: the triangle formed by the three hinge points of the second adjusting hydraulic cylinder (18), the cantilever hydraulic cylinder (3) and the second cantilever (7) and the second tripod (17) is an isosceles triangle, and the hinge point of the second tripod (17) and the second cantilever (7) is positioned at the vertex angle of the isosceles triangle.

7. An internal drive excavation arm according to claim 6, wherein: one end, far away from the bucket arm (2), of the second cantilever (7) is bent downwards.

8. An internal drive excavation arm according to claim 7, wherein: a groove (9) is formed in one end, close to the second cantilever (7), of the first cantilever (4), flat grooves (10) are formed in two sides of one end, close to the first cantilever (4), of the second cantilever (7), the first cantilever (4) is connected in the groove (9) in an inserting mode, and the bottom wall of each flat groove (10) is attached to the side wall of the corresponding groove (9).