CN214784325U

CN214784325U - Middle cylinder body for internal optimization type breaking hammer

Info

Publication number: CN214784325U
Application number: CN202120287905.7U
Authority: CN
Inventors: 张其生; 李晓东; 李玉良; 孙玉田
Original assignee: Shandong Ruikai Construction Machinery Co ltd
Current assignee: Shandong Ruikai Construction Machinery Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-11-19
Anticipated expiration: 2031-02-02

Abstract

The utility model relates to an inside optimization formula quartering hammer is with well cylinder body relates to the technical field of quartering hammer, and it includes well cylinder body, the inner wall of well cylinder body is provided with the ladder face that is used for with piston outer wall middle part adaptation, the ladder face is including the high convex surface that is located well cylinder body inner wall middle part, the both sides of high convex surface are equipped with low convex surface respectively, the internal diameter of high convex surface is less than the internal diameter of low convex surface. This application has the effect that reduces piston centering cylinder body damage.

Description

Middle cylinder body for internal optimization type breaking hammer

Technical Field

The application relates to the technical field of quartering hammers, in particular to an internal optimization type intermediate cylinder body for the quartering hammers.

Background

The hydraulic breaking hammer is called as the breaking hammer or the breaker for short, the power source of the hydraulic breaking hammer is the pressure provided by an excavator, a loader or a pump station, and the hydraulic breaking hammer can effectively break stones and rocks in engineering construction and improve the working efficiency.

The chinese utility model patent that the related art can refer to the grant bulletin number is CN206829228U discloses a hydraulic breaking hammer, including cylinder body, valve body, drill rod and piston, the piston cooperation is in the cylinder body, and drill rod and piston cooperation, valve body are fixed on the cylinder body, and the cylinder body includes preceding cylinder body, well cylinder body and back cylinder body, and preceding cylinder body, well cylinder body set gradually with back cylinder body, set up the nitrogen chamber in the back cylinder body, and this nitrogen chamber is uncovered to be set up in the one end of back cylinder body.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: because the hydraulic breaking hammer works in a severe environment, the operation mode of an operator mostly mainly adopts oblique striking and inclined striking, the deformation of a piston striking head is easily caused, and then the damage of a piston and a middle cylinder body is caused, so that the hydraulic breaking hammer breaks down.

Disclosure of Invention

In order to reduce the damage of piston centering cylinder body, this application provides an inside optimization formula quartering hammer and uses well cylinder body.

The application provides a cylinder block adopts following technical scheme in inside optimized formula quartering hammer is used:

the utility model provides an interior optimization formula quartering hammer is with well cylinder body, includes well cylinder body, the inner wall of well cylinder body is provided with the ladder face that is used for with piston outer wall middle part adaptation, the ladder face is including the high convex surface that is located well cylinder body inner wall middle part, the both sides of high convex surface are equipped with low convex surface respectively, the internal diameter of high convex surface is less than the internal diameter of low convex surface.

Through adopting above-mentioned technical scheme, according to the design that piston middle part external diameter is greater than piston both ends external diameter, the inner wall of well cylinder body designs into the ladder face with piston outer wall middle part adaptation for the piston middle part is laminated with high convex surface and is removed mutually, and well cylinder body can be under the design of low convex surface, gives away the space for the head of hitting of piston, in order to reduce the piston because of the head of hitting warp the inner wall damage of centering cylinder body.

Optionally, the inner face of the high convexity is designed with an integral oil groove.

Through adopting above-mentioned technical scheme, utilize whole oil groove for can give when laminating high convex surface and piston middle part and supply oil for the piston with abundant, in order to reduce the wearing and tearing of piston and well cylinder body.

Optionally, the inner surface of the low convexity is designed with a fitting groove.

Through adopting above-mentioned technical scheme, utilize the design of assembly groove, low convex surface just can provide the space for the installation of subassembly such as piston ring for well cylinder body additional subassembly that can be more convenient, and the installation of subassembly is more firm.

Optionally, an assembly chamfer is formed on one side of the low convex surface far away from the high convex surface.

Through adopting above-mentioned technical scheme, the assembly chamfer can make subassembly such as piston ring realize the multi-angle installation to further promote the convenience of subassembly installation.

Optionally, the middle cylinder body comprises two half cylinder bodies which are mutually involutory, and involutory bolts are arranged on the half cylinder bodies.

Through adopting above-mentioned technical scheme, under the effect to closing the bolt, two half cylinder bodies can realize closing to make well cylinder body realize the detachable effect, and then when piston striking head warp and can't follow this internal time of shifting out of cylinder body, alright open well cylinder body, realize taking out the maintenance of piston, with the waste of cylinder body in the reduction.

Optionally, the fitting surface of the half cylinder body is provided with a fitting block and a fitting groove adapted to the fitting block.

Through adopting above-mentioned technical scheme, two half cylinder bodies can realize more abundant involution under the cooperation of involuting the piece and closing the groove, and then promote the stability of well cylinder body.

Optionally, an elastic pin is arranged in the matching groove, and a jacking inclined surface is arranged at the end of the matching block.

Through adopting above-mentioned technical scheme, when closing the piece and inserting and locate closing the inslot, the elastic pin can be by closing piece jack-up under the effect of jacking inclined plane, and then makes the bottom of elastic pin offset with closing a piece top surface to promote the stability of closing the piece, thereby further promote the stability of well cylinder body.

Optionally, the fitting block is provided with a pin slot adapted to the elastic pin.

Through adopting above-mentioned technical scheme, the elastic pin can fall into the keyway when propping up with closing the piece top surface, and then promotes the elastic pin and the stability that offsets with closing the piece to the firm degree of cylinder body in further promoting.

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

1. according to the design that the outer diameter of the middle part of the piston is larger than the outer diameters of the two ends of the piston, the inner wall of the middle cylinder body is designed into a step surface matched with the middle part of the outer wall of the piston, so that the middle part of the piston is attached to the high convex surface to move, and the middle cylinder body can make room for a striking head of the piston under the design of the low convex surface, so that the damage of the piston to the inner wall of the middle cylinder body due to the deformation of the striking head is reduced;

2. utilize whole oil groove for can give when laminating in high convex surface and piston middle part and add abundant to the piston fuel feeding, in order to reduce the wearing and tearing of piston and well cylinder body.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

FIG. 2 is a cross-sectional view of the embodiment highlighting the mating of the mating block and the mating groove.

FIG. 3 is a cross-sectional view of the embodiment highlighting the internal structure of the through-hole.

Description of reference numerals: 1. a middle cylinder body; 11. a half cylinder body; 12. a through hole; 13. involutive bolts; 21. a high convexity; 211. an integral oil tank; 22. a low convexity; 221. assembling a chamfer; 222. assembling a groove; 3. matching blocks; 31. jacking an inclined plane; 32. a pin slot; 4. fitting grooves; 41. and an elastic pin.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses cylinder body in inside optimization formula quartering hammer is used. Referring to fig. 1, well cylinder body includes well cylinder body 1, and well cylinder body 1 is cuboid shape structure, and through-hole 12 along the length direction extension of well cylinder body 1 is seted up to the inside of well cylinder body 1, and through-hole 12 extends and extends the both ends of well cylinder body 1 to the both ends of well cylinder body 1. When the piston is installed, the piston is inserted into the middle cylinder body 1 from one end of the middle cylinder body 1 through the through hole 12, so that the installation of the piston and the middle cylinder body 1 is realized.

Referring to fig. 1, butt joints have been all seted up on the opposite face of the both sides of well cylinder body 1, the butt joint extends to the both ends of well cylinder body 1 along the length direction of well cylinder body 1, and two butt joints extend to through-hole 12 department in opposite directions, so that well cylinder body 1 equally divides into two half cylinders 11 that can involution each other under the effect to the butt joint, with the dismantlement of cylinder body 1 in the realization, thereby when piston striking head warp and can't shift out from through-hole 12 of cylinder body 1, alright dismantle well cylinder body 1, realize taking out of piston, when being convenient for piston individual maintenance, cylinder body 1 together scrapped effect along with the piston in reducing.

Referring to fig. 1, two half cylinder bodies 11 all are provided with to closing bolt 13 in the one side that deviates from mutually, and every closes bolt 13 and all wears to locate its place half cylinder body 11 and extends to in this half cylinder body 11 that half cylinder body 11 closes to in with second half cylinder body 11 threaded connection, and then makes two half cylinder bodies 11 realize firmly closing under the effect of closing bolt 13 to the firm degree after the cylinder body 1 synthesizes in the promotion.

Referring to fig. 1 and 2, two half cylinder bodies 11 are respectively fixedly connected with a butt-joint block 3 on a relative joint face, and a butt-joint groove 4 matched with the butt-joint block 3 is formed, the butt-joint blocks 3 on the relative joint faces of the two half cylinder bodies 11 are aligned with the butt-joint grooves 4 in pairs, so that when the two half cylinder bodies 11 are butt-jointed, the butt-joint blocks 3 on each half cylinder body 11 can be inserted into the butt-joint grooves 4 of the other half cylinder body 11 butt-jointed with the half cylinder body 11, and therefore the two half cylinder bodies 11 can be matched with the butt-joint blocks 3 and the butt-joint grooves 4 to realize more sufficient butt-joint, and further improve the stability of the middle cylinder body 1.

Referring to fig. 1 and 2, each involution groove 4 is provided with an elastic pin 41, the elastic pin 41 is perpendicular to the axis of the involution groove 4, the elastic pin 41 can contract in the axial direction and automatically rebounds, and when the elastic pin 41 is reset, the bottom end of the elastic pin is lower than the top surface of the involution block 3.

Referring to fig. 1 and 2, a pin groove 32 adapted to the bottom end of the elastic pin 41 is formed in the top surface of each matching block 3, and when the matching block 3 is inserted into the matching groove 4 and pushes up the elastic pin 41, the matching block 3 is moved, so that the elastic pin 41 can fall into the pin groove 32, and the stability of the elastic pin 41 against the matching block 3 is further improved, and the firmness of the middle cylinder body 1 is further improved.

Referring to fig. 1, fig. 2, jacking inclined plane 31 has all been seted up to every one end of closing piece 3 in inserting closing groove 4, when closing piece 3 and inserting and locate closing groove 4 in, the elastic pin 41 can be closed 3 jack-ups under the effect of jacking inclined plane 31 by closing piece, in order to promote the convenient degree to closing 3 jack-up elastic pin 41 of piece, and then make the bottom of elastic pin 41 change with closing 3 top surfaces of piece and offset, in order to promote the stability of closing piece 3, further promote the stability of well cylinder body 1.

Referring to fig. 1 and 3, the inner wall of the through hole 12 is provided with a step surface adapted to the middle of the outer wall of the piston, the step surface includes a high convex surface 21 located at the middle of the inner wall of the cylinder body 1, two sides of the high convex surface 21 are respectively provided with a low convex surface 22, and the inner diameter of the high convex surface 21 is smaller than that of the low convex surface 22. According to the design that piston middle part external diameter is greater than piston both ends external diameter, the inner wall of well cylinder body 1 designs into the ladder face with piston outer wall middle part adaptation for the piston middle part is laminated with high convex surface 21 and is removed mutually, and well cylinder body 1 can give way the space for the head of hitting of piston under the design of low convex surface 22, with the inner wall damage of reducing the piston because of hitting the head deformation centering cylinder body 1.

Referring to fig. 1 and 3, the inner surface of the high convex surface 21 is designed with an integral oil groove 211, the integral oil groove 211 comprises a plurality of single oil grooves, the plurality of single oil grooves are uniformly arranged on the inner surface of the high convex surface 21 along the axial direction of the through hole 12, and each single oil groove extends for a circle on the inner surface of the high convex surface 21 along the circumferential direction of the through hole 12. By utilizing the integral oil groove 211, oil can be sufficiently supplied to the piston when the high convex surface 21 is attached to the middle part of the piston, so that the abrasion of the piston and the middle cylinder body 1 is reduced.

Referring to fig. 1 and 3, the inner surface of the low convex surface 22 is provided with an assembling groove 222, the assembling groove 222 is designed to be matched with a piston ring, and by means of the design of the assembling groove 222, the low convex surface 22 can provide a space for installing the piston ring, so that the middle cylinder body 1 can be used for conveniently and rapidly attaching the piston ring, and the piston ring can be installed more firmly.

Referring to fig. 1 and 3, the low convex surface 22 is provided with an assembly chamfer 221 on the side away from the high convex surface 21, and the assembly chamfer 221 extends a circle at the end of the low convex surface 22 along the circumferential direction of the through hole 12, so that the diameter of the end of the low convex surface 22 is increased, and multi-angle installation of components such as piston rings is realized, thereby further improving the convenience of component installation.

The implementation principle of cylinder body in inside optimized formula quartering hammer of this application embodiment is: during installation, the piston can be under the effect of through-hole 12, insert from the one end of centre cylinder body 1 to remove to the piston middle part and laminate with high convex surface 21, alright completion installation.

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

1. The utility model provides an inside optimization formula quartering hammer is with well cylinder body which characterized in that: including well cylinder body (1), the inner wall of well cylinder body (1) is provided with the ladder face that is used for with piston outer wall middle part adaptation, the ladder face is including high convex surface (21) that are located well cylinder body (1) inner wall middle part, the both sides of high convex surface (21) are equipped with low convex surface (22) respectively, the internal diameter of high convex surface (21) is less than the internal diameter of low convex surface (22).

2. The middle cylinder body for an internally optimized demolition hammer according to claim 1, wherein: the inner surface of the high convex surface (21) is designed with an integral oil groove (211).

3. The middle cylinder body for an internally optimized demolition hammer according to claim 1, wherein: the inner surface of the low convex surface (22) is designed with an assembling groove (222).

4. The middle cylinder body for an internally optimized demolition hammer according to claim 1, wherein: the low convex surface (22) is provided with an assembly chamfer (221) at one side far away from the high convex surface (21).

5. The middle cylinder body for an internally optimized demolition hammer according to claim 1, wherein: the middle cylinder body (1) comprises two half cylinder bodies (11) which are mutually involutory, and involutory bolts (13) are arranged on the half cylinder bodies (11).

6. The middle cylinder body for an internally optimized demolition hammer according to claim 5, wherein: the butt-joint surface of the half cylinder body (11) is provided with a butt-joint block (3) and a butt-joint groove (4) matched with the butt-joint block (3).

7. The internally optimized breaking hammer middle cylinder according to claim 6, wherein: an elastic pin (41) is arranged in the butt-joint groove (4), and a jacking inclined surface (31) is arranged at the end part of the butt-joint block (3).

8. The internally optimized breaking hammer middle cylinder according to claim 6, wherein: the butt-joint block (3) is provided with a pin slot (32) matched with the elastic pin (41).