CN217174980U - Connecting structure of cylinder body of breaking hammer - Google Patents

Abstract

The utility model relates to a quartering hammer cylinder connection structure, relate to the quartering hammer field, it includes preceding, in, three cylinder body and a plurality of through bolt in back, through bolt is from last to having seted up a plurality of cavitys down, the cavity all communicates there is the opening, be equipped with a plurality of first kicking blocks in the cavity, a plurality of first kicking blocks distribute along through bolt's circumference, sliding connection has first ejector pin in the through bolt, it is connected with first connecting rod to rotate between first kicking block and first ejector pin, the equal threaded connection in both ends of through bolt has lock nut, the upper end and the lock nut of first ejector pin support tightly. Through bolt penetrates in three cylinder body in proper order, then lock nut screws up, with first ejector pin to the inside promotion of through bolt, when the inner wall of first kicking block and cavity is contradicted, first ejector pin promotes first kicking block outside the opening through first connecting rod, and then makes first kicking block support tightly with the cylinder body, and this application through bolt is difficult for rocking the damage, is favorable to increase of service life.

Description

Connecting structure of cylinder body of breaking hammer

Technical Field

The application relates to the field of breaking hammers, in particular to a cylinder connecting structure of a breaking hammer.

Background

At present, a breaking hammer is generally formed by assembling a front cylinder body, a middle cylinder body and a rear cylinder body into a machine core, a machine shell is matched with an excavator to be connected for working, and the three cylinder bodies are generally connected through four through bolts arranged at edges and corners.

The related art can refer to Chinese patent with publication number CN203846551U and discloses a hydraulic breaking hammer, which comprises an upper cylinder, a hydraulic middle cylinder, a lower cylinder, a through bolt and an energy storage assembly, wherein the through bolt penetrates through the upper cylinder, the hydraulic middle cylinder and the lower cylinder and is tensioned into a breaking hammer body; a drill rod is arranged in the cavity of the upper cylinder, two flat lock pins are arranged on the upper cylinder, and the flat lock pins are respectively inserted at two sides of the drill rod; a key groove is formed on the drill rod; the cavity of the upper cylinder is provided with a guide sleeve and a drill rod retainer bush, and the middle cylinder is provided with an expiratory valve; the lower cylinder is a nitrogen chamber which is positioned behind the piston.

In view of the above-mentioned related arts, the inventor believes that, in order to facilitate the penetration of the through bolt into the corresponding connecting hole of the cylinder body during the installation of the breaking hammer, the through bolt is generally in clearance fit with the connecting hole, but the breaking hammer generates strong vibration force during the operation, which easily causes the through bolt to shake, thereby affecting the service life.

SUMMERY OF THE UTILITY MODEL

In order to increase of service life, the application provides a quartering hammer cylinder body connection structure.

The application provides a quartering hammer cylinder body connection structure adopts following technical scheme:

the utility model provides a quartering hammer cylinder connection structure, includes preceding, in, three cylinder body and a plurality of through bolt in back, through bolt is from last to having seted up a plurality of cavitys extremely down, and the cavity all communicates there is the opening, is equipped with a plurality of first kicking blocks in the cavity, and a plurality of first kicking blocks distribute along through bolt's circumference, and sliding connection has first ejector pin in the through bolt, rotates between first kicking block and first ejector pin to be connected with first connecting rod, and the equal threaded connection in both ends of through bolt has lock nut, and the upper end and the lock nut of first ejector pin support tightly.

Through adopting above-mentioned technical scheme, through bolt penetrates in three cylinder body in proper order, then lock nut screws up, with first ejector pin to the inside promotion of through bolt, when first kicking block contradicts with the inner wall of cavity, first ejector pin promotes first kicking block outside the opening through first connecting rod, and then makes first kicking block support tightly with the cylinder body, and the through bolt is difficult for rocking the damage, is favorable to increase of service life.

Optionally, a second ejector block is slidably connected between every two adjacent first ejector blocks, a second ejector rod is slidably connected in the through bolt, a second connecting rod is rotatably connected between the second ejector block and the second ejector rod, and the upper end of the second ejector rod is tightly abutted to the locking nut.

Through adopting above-mentioned technical scheme, first kicking block supports the cylinder body tight back, and the second ejector pin removes in through bolt under lock nut's effect, and then promotes the second kicking block outside the opening through the second connecting rod, and the second kicking block removes to between two first kicking blocks that correspond, and first kicking block is difficult for taking place to rock and leads to first connecting rod to damage, and life is longer.

Optionally, the cavities correspond to the cylinder bodies one to one, and the cavities are located in the middle of the corresponding cylinder bodies in the length direction.

Through adopting above-mentioned technical scheme, the position physical strength that the cavity was seted up to the through bolt is relatively poor, and the cavity is located the intermediate position of cylinder body, is difficult for bearing the stronger shearing force of junction between the cylinder body, is favorable to increase of service life.

Optionally, a central column coaxial with the through bolt is fixedly arranged in the middle of the cavity, a plurality of vertical grooves are formed in the outer wall of the central column, the first ejector rods comprise a plurality of first slide bars in one-to-one correspondence with the first ejector blocks, the second ejector rods comprise a plurality of second slide bars in one-to-one correspondence with the second ejector blocks, and the first slide bars and the second slide bars are embedded into the vertical grooves one by one.

Through adopting above-mentioned technical scheme, first slide bar promotes corresponding first kicking block through first connecting rod and moves to the opening outward, and the second slide bar promotes corresponding second kicking block through the second connecting rod and moves to the opening outward, and first slide bar and second slide bar are difficult for taking place to buckle under the effect of spout, and long and simple structure of life is effectual.

Optionally, the through bolt is provided with two thickened sections along the length direction, and the thickened sections are located at the connection position of the two adjacent cylinder bodies.

Through adopting above-mentioned technical scheme, add thick section reinforcing through bolt at the anti-shear capacity of two cylinder body junctions, be difficult for appearing the too big phenomenon that leads to through bolt fracture of shearing force in the course of the work, be favorable to increase of service life.

Optionally, the thickening section all with through bolt sliding connection, the outer wall of thickening section has set firmly the lug, the cylinder body all be equipped with the spread groove of thickening section and lug adaptation.

Through adopting above-mentioned technical scheme, the lug embedding spread groove of thickened section restricts through bolt's rotation, and difficult lock nut that arouses is not hard up, is favorable to increase of service life.

Optionally, the lock nut is a locknut.

Through adopting above-mentioned technical scheme, lock nut is difficult not hard up at the vibrations in-process of quartering hammer, is favorable to increase of service life.

Optionally, the upper end surfaces of the first ejector block and the second ejector block are inclined surfaces and are close to the axis of the through bolt from bottom to top.

Through adopting above-mentioned technical scheme, lock nut removes the back, loses the spacing to first ejector pin and second ejector pin, and first kicking block and second kicking block no longer are tight with the cylinder body top this moment, and when dismantling the cylinder body, first kicking block and second kicking block are automatic to retracting partly in the cavity easily under the effect on inclined plane, convenient to detach through bolt.

In summary, the present application includes at least one of the following beneficial technical effects:

through the arrangement of the first ejector block, the first connecting rod and the first ejector rod, the through bolt sequentially penetrates into the three cylinder bodies, then the locking nut is screwed down to push the first ejector rod to the inside of the through bolt, when the first ejector block is abutted against the inner wall of the cavity, the first ejector rod pushes the first ejector block to the outside of the opening through the first connecting rod, so that the first ejector block is abutted against the cylinder bodies, the through bolt is not easy to shake and damage, and the service life is prolonged;

by arranging the second ejector block, the second connecting rod and the second ejector rod, after the cylinder body is tightly abutted by the first ejector block, the second ejector rod moves towards the inside of the through bolt under the action of the locking nut, and then the second ejector block is pushed towards the outside of the opening through the second connecting rod, the second ejector block moves to a position between the two corresponding first ejector blocks, the first ejector blocks are not easy to shake to cause damage to the first connecting rod, and the service life is long;

through setting up the cavity at the intermediate position that corresponds cylinder body length direction, the position physical strength that the cavity was seted up to the through bolt is relatively poor, and the cavity is located the intermediate position of cylinder body, is difficult for bearing the stronger shearing force of junction between the cylinder body, is favorable to increase of service life.

Drawings

Fig. 1 is a schematic view of the overall structure of the present application.

FIG. 2 is a schematic view of the connection holes and the connection grooves.

Fig. 3 is a schematic view of the overall structure of the through bolt of the present application.

Fig. 4 is a schematic partial cross-sectional view intended to highlight the internal structure of the cavity.

FIG. 5 is a partial schematic view for highlighting the positions of the first and second lift pins.

Description of reference numerals: 1. a cylinder body; 11. connecting holes; 12. connecting grooves; 2. a through bolt; 21. a cavity; 22. a central column; 221. a vertical slot; 3. a first ejector rod; 31. a first link; 32. a first top block; 33. a first slide bar; 4. a second ejector rod; 41. a second slide bar; 42. a second link; 43. a second top block; 5. locking the nut; 6. a thickening section; 61. and (4) a bump.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses quartering hammer cylinder connection structure.

Referring to fig. 1 and 2, a connecting structure of a cylinder body 1 of a breaking hammer comprises a front cylinder body 1, a middle cylinder body 1 and a rear cylinder body 1 and four through bolts 2, wherein connecting holes 11 are formed in four edges of the cylinder body 1, and a user inserts the four through bolts 2 into the connecting holes 11 during installation; the equal threaded connection of tip of through bolt 2 has lock nut 5, and the user screws up lock nut 5, and then realizes through bolt 2 to the connection installation of three cylinder body 1.

Referring to fig. 2 and 3, through bolt 2 overcoat is equipped with two and adds thick section 6, and two and add thick section 6 and all utilize the cooperation realization of slider spout and through bolt 2 sliding connection, can follow through bolt 2's length direction and slide, can not take place relative rotation with through bolt 2, and the user inserts through bolt 2's one end in the connecting hole 11 of preceding cylinder body 1, then installs the lock nut 5 of this tip on through bolt 2 and screws up.

Referring to fig. 2 and 3, a user sleeves one of the thickened sections 6 outside the through bolt 2 and then slides the front cylinder body 1; add thick section 6's outer wall integrated into one piece and have three lug 61 along the 2 axial settings of through bolt, the junction of three cylinder body 1 all is equipped with spread groove 12, the shape of spread groove 12 all with the shape adaptation of adding thick section 6, the user will add thick section 6 embedding spread groove 12 in, the degree of depth of every cylinder body 1's spread groove 12 is half of adding thick section 6 length, add thick section 6 promptly and can only have before half imbeds in cylinder body 1 spread groove 12.

Referring to fig. 2 and 3, a user aligns a connecting hole 11 of a middle cylinder body 1 with a through bolt 2, the through bolt 2 penetrates into the connecting hole 11 corresponding to the middle cylinder body 1, two ends of a thickened section 6 between a front cylinder body 1 and the middle cylinder body 1 are respectively embedded into the front cylinder body 1 and the middle cylinder body 1, the user sleeves a second thickened section 6 outside the through bolt 2, the through bolt 2 is connected with a rear cylinder body 1 in the same manner, and the two thickened sections 6 are respectively located at the connecting positions of the two cylinder bodies 1, so that the shearing resistance of the connecting position of the cylinder bodies 1 is enhanced; and under the effect of lug 61, through bolt 2, plus thick section 6 all be difficult for taking place relative rotation with cylinder body 1, be favorable to increase of service life.

Referring to fig. 1, 4 and 5, a first ejector rod 3 and a second ejector rod 4 are installed in the through bolt 2, the first ejector rod 3 and the second ejector rod 4 are coaxially arranged, and the diameter of one end, close to the rear cylinder body 1, of the first ejector rod 3 is relatively small and penetrates through the second ejector rod 4. The first push rod 3 comprises four first sliding rods 33 which are arranged at equal intervals along the circumferential direction of the through bolt 2, the first sliding rods 33 are all in sliding connection with the through bolt 2 and can slide along the axial direction of the through bolt 2, and a user pushes the first push rod 3 towards the inside of the through bolt 2, namely the direction close to the front cylinder body 1.

Referring to fig. 1 and 4, the through bolt 2 is provided with three cavities 21 along the length direction thereof, the cavities 21 correspond to the cylinder bodies 1 one to one and are all located at the middle positions corresponding to the cylinder bodies 1, and the first slide bar 33 sequentially penetrates through the three cavities 21. All install four first kicking blocks 32 in every cavity 21, first kicking block 32 and first slide bar 33 one-to-one, rotate between first kicking block 32 and the first slide bar 33 that corresponds and be connected with first connecting rod 31, first kicking block 32 contradicts with the lateral wall that corresponds cavity 21 and is close to preceding cylinder body 1 one side, when first slide bar 33 is close to preceding cylinder body 1 and slides, first kicking block 32 removes to the direction of keeping away from through bolt 2 axis under the effect of first connecting rod 31.

Referring to fig. 2, 4 and 5, each cavity 21 is provided with an opening communicated with the outside, and the first top block 32 extends from the corresponding opening to the outside of the cavity 21 and further abuts against the hole wall of the connecting hole 11 of the corresponding cylinder body 1. The through bolt 2 is less likely to shake. The second top rod 4 comprises four second sliding rods 41 which are arranged at equal intervals along the circumferential direction of the through bolt 2, the second sliding rods 41 sequentially penetrate through the three cavities 21, and the four second sliding rods 41 and the four first sliding rods 33 are distributed in a staggered mode.

Referring to fig. 1, 4 and 5, four second ejector blocks 43 are installed in each cavity 21, the second ejector blocks 43 correspond to the second slide bars 41 one by one, and a second connecting rod 42 is rotatably connected between the corresponding second slide bars 41, a user pushes the second ejector rod 4 in a direction close to the front cylinder body 1, at this time, the second slide bars 41 drive the second ejector blocks 43 to move in a direction close to the front cylinder body 1 through the second connecting rods 42, the second ejector blocks 43 gradually move between two adjacent first ejector blocks 32, and when the second ejector blocks 43 abut against the inner wall of the cavity 21, the second ejector blocks 43 move out of the cavity 21 through the openings.

Referring to fig. 4 and 5, the second ejector block 43 has a limiting effect on the first ejector block 32, and the first ejector block 32 is not prone to shift to cause the first connecting rod 31 to be broken; the through bolt 2 is integrally formed with a center post 22 at the center of each cavity 21, and the center post 22 can improve the physical strength of the through bolt 2, such as bending resistance, in the vicinity of the cavity 21. The outer wall of the central column 22 is provided with vertical grooves 221 corresponding to the first slide bar 33 and the second slide bar 41, the first slide bar 33 and the second slide bar 41 are embedded into the corresponding vertical grooves 221, the central column 22 utilizes the vertical grooves 221 to limit the first slide bar 33 and the second slide bar 41, and the first slide bar 33 and the second slide bar 41 are not easy to break.

Referring to fig. 1 and 5, a user installs and tightens a lock nut 5 near one end of the rear cylinder body 1 on the through bolt 2 to fix the through bolt 2; at the moment, one end of the first ejector rod 3 and the second ejector rod 4, which is close to the rear cylinder body 1, abuts against the end face of the locking bolt, which is close to the rear cylinder body 1, and the first ejector rod 3 and the second ejector rod 4 cannot slide towards the direction close to the rear cylinder body 1 under the limiting action of the locking bolt. Locknut 5 all adopts locknut, and under locknut's locking function, locknut 5 is difficult not hard up under vibrations, and then the guarantee is longer to the fixed action of through bolt 2 and cylinder body 1.

Referring to fig. 1, fig. 4 and fig. 5, the upper end faces of the first ejector block 32 and the second ejector block 43 are inclined planes and become closer to the axis of the through bolt 2 from bottom to top, when the breaking hammer needs to be disassembled, a user detaches the locking nut 5, the locking nut 5 loses the limiting effect on the first ejector rod 3 and the second ejector rod 4, at the moment, the user separates the cylinder body 1 from the through bolt 2, the user pulls the second ejector rod 4 in the direction deviating from the front cylinder body 1, the second ejector block 43 slides in the cavity 21, at the moment, the first ejector block 32 and the second ejector block 43 slide a part in the cavity 21 automatically under the action of the inclined planes, and are not abutted against the cylinder body 1 any more, and then the through bolt 2 is convenient to separate from the cylinder body 1.

The implementation principle of the connection structure of the breaking hammer cylinder body 1 in the embodiment of the application is as follows: a user sequentially penetrates the through bolt 2 into the three cylinder bodies 1, then the first ejector rod 3 and the second ejector rod 4 are pushed towards the inside of the through bolt 2, and when the first ejector block 32 is abutted against the inner wall of the cavity 21, the first ejector rod 3 pushes the first ejector block 32 outwards from the opening through the first connecting rod 31; when the second ejector block 43 is abutted against the inner wall of the cavity 21, the second ejector rod 4 pushes the second ejector block 43 outwards through the second connecting rod 42, so that the first ejector block 32 and the second ejector block 43 are tightly abutted against the cylinder body 1, the through bolt 2 is not easy to shake and damage, and the service life is prolonged.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a quartering hammer cylinder body (1) connection structure, includes three cylinder body (1) and a plurality of through bolt (2) in preceding, well, back, its characterized in that: through bolt (2) are from last to having seted up a plurality of cavities (21) down, cavity (21) all communicates there is the opening, be equipped with a plurality of kicking blocks (32) in cavity (21), the circumference distribution of through bolt (2) is followed in a plurality of first kicking blocks (32), sliding connection has first ejector pin (3) in through bolt (2), it is connected with first connecting rod (31) to rotate between first kicking block (32) and first ejector pin (3), the equal threaded connection in both ends of through bolt (2) has lock nut (5), the upper end and the lock nut (5) of first ejector pin (3) support tightly.

2. A breaking hammer cylinder (1) connection structure according to claim 1, characterized in that: a second ejector block (43) is slidably connected between every two adjacent first ejector blocks (32), a second ejector rod (4) is slidably connected between the through bolts (2), a second connecting rod (42) is rotatably connected between the second ejector block (43) and the second ejector rod (4), and the upper end portion of the second ejector rod (4) is tightly abutted to the locking nut (5).

3. A breaking hammer cylinder (1) connection structure according to claim 1, characterized in that: the cavities (21) are in one-to-one correspondence with the cylinder bodies (1), and the cavities (21) are all located in the middle of the corresponding cylinder bodies (1) in the length direction.

4. A breaking hammer cylinder (1) connection structure according to claim 1, characterized in that: the middle position of cavity (21) sets firmly center post (22) coaxial with through bolt (2), and a plurality of perpendicular grooves (221) have been seted up to the outer wall of center post (22), and first ejector pin (3) include a plurality of first slide bars (33) with first kicking block (32) one-to-one, and second ejector pin (4) include a plurality of second slide bars (41) with second kicking block (43) one-to-one, and first slide bar (33) and second slide bar (41) imbed one by one in erecting groove (221).

5. A breaking hammer cylinder (1) connection structure according to claim 1, characterized in that: the through bolt (2) is provided with two thickening sections (6) along the length direction, and the thickening sections (6) are located at the joint of the two adjacent cylinder bodies (1).

6. A demolition hammer cylinder (1) connection according to claim 5, characterized in that: add thick section (6) all with through bolt (2) sliding connection, the outer wall that adds thick section (6) has set firmly lug (61), cylinder body (1) all be equipped with add thick section (6) and lug (61) adaptation spread groove (12).

7. A breaking hammer cylinder (1) connecting structure according to claim 1, characterized in that: the locking nut (5) is a locknut.

8. A breaking hammer cylinder (1) connection structure according to claim 2, characterized in that: the upper end faces of the first ejector block (32) and the second ejector block (43) are inclined faces and are close to the axis of the through bolt (2) from bottom to top.

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