CN218592912U - Air hammer for electric hammer cylinder - Google Patents
Air hammer for electric hammer cylinder Download PDFInfo
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- CN218592912U CN218592912U CN202223268083.1U CN202223268083U CN218592912U CN 218592912 U CN218592912 U CN 218592912U CN 202223268083 U CN202223268083 U CN 202223268083U CN 218592912 U CN218592912 U CN 218592912U
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- air hammer
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Abstract
The utility model discloses an air hammer for electric hammer cylinder. The pneumatic hammer comprises a pneumatic hammer body, wherein a first sinking groove used for arranging a sealing ring is formed in the pneumatic hammer body, and a vent groove communicated with the first sinking groove is formed in the outer wall of the pneumatic hammer body. The utility model has the advantages that the vent groove is arranged on the air hammer, and the sealing ring is pushed towards the inner wall direction of the air chamber by the airflow in the reciprocating motion process of the air hammer, so that the service life of the sealing ring is prolonged; the ventilation groove can also bring lubricating grease to the sealing ring in the air flow circulation process, so that the service life of the sealing ring is further prolonged.
Description
Technical Field
The utility model belongs to the technical field of electric tool technique and specifically relates to an air hammer for electric hammer cylinder.
Background
When the electric hammer works, the transmission mechanism drives the piston to compress air in the electric hammer cylinder in a reciprocating manner, so that periodically changed air pressure in the cylinder drives the air hammer in the cylinder to strike the impact hammer in a reciprocating manner, and then the impact hammer strikes the drill bit in a reciprocating manner, and the hammering action of the drill bit is realized.
The air hammer is provided with a plurality of air holes for air exchange, a sealing ring is arranged on the air hammer, and the sealing ring plays a sealing role so as to stabilize the air pressure in the air chamber and ensure that the air hammer and the piston move axially and synchronously.
In the actual use process, because the sealing ring directly rubs with the inner wall of the air chamber, the outer wall of the sealing ring is easy to wear, a gap is formed between the outer wall of the sealing ring and the inner wall of the air chamber after the outer wall of the sealing ring is worn, the impact hammer cannot be normally used, the sealing ring needs to be replaced, and the difficulty that how to prolong the service life of the sealing ring is difficult to overcome in the industry is overcome, so that the applicant improves the problem.
SUMMERY OF THE UTILITY MODEL
The utility model provides an air hammer for electric hammer cylinder to not enough among the prior art.
In order to solve the technical problem, the utility model discloses a following technical scheme can solve:
the utility model provides an air hammer for electric hammer cylinder, includes the air hammer body, including the first heavy groove that is used for setting up the sealing washer on the air hammer body, set up on the air hammer body outer wall with the air channel that first heavy groove is linked together.
In the above scheme, preferably, the air hammer body further includes a second sinking groove, and the first sinking groove and the second sinking groove divide the air hammer body into three parts, namely a first part, a second part and a third part, where the first part and the second part are located at two ends of the second sinking groove, and the second part and the third part are located at two ends of the first sinking groove;
the vent slots include a first vent slot on the first portion and a second vent slot on the second portion.
In the above aspect, preferably, two ends of the first ventilation groove are respectively communicated with the front end space of the air hammer body and the second sinking groove;
and two ends of the second vent groove are respectively communicated with the second sinking groove and the first sinking groove.
In the above scheme, preferably, the third part is provided with a third vent groove, and two ends of the third vent groove are respectively communicated with the first sinking groove and the rear end space of the air hammer body.
In the above aspect, preferably, the first vent groove, the second vent groove, and the third vent groove are respectively axially provided on an outer wall of the air hammer body.
In the above scheme, preferably, the first vent groove, the second vent groove and the third vent groove are respectively provided with a plurality of positions corresponding to one another.
In the above aspect, preferably, the first vent groove, the second vent groove, and the third vent groove are inclined grooves, straight grooves, threaded grooves, or offset grooves.
In the above aspect, preferably, a groove bottom surface of the second vent groove is located below a middle position of the seal ring in the linear diameter.
In the above aspect, preferably, the first vent groove and the second vent groove are axially opened in an outer wall of the air hammer body, respectively.
In the above scheme, preferably, the first vent grooves and the second vent grooves are respectively provided with a plurality of positions corresponding to one another;
the first vent groove and the second vent groove are inclined grooves, straight grooves, threaded grooves or staggered grooves.
The utility model has the advantages that:
the utility model has the advantages that the vent groove is arranged on the air hammer, and the sealing ring is pushed towards the inner wall direction of the air chamber by the airflow in the reciprocating motion process of the air hammer, so that the service life of the sealing ring is prolonged;
the ventilation groove can also bring lubricating grease to the sealing ring in the air flow circulation process, so that the service life of the sealing ring is further prolonged.
Drawings
Fig. 1 is a schematic view of the present invention.
Fig. 2 is another schematic view of the present invention.
Fig. 3 is a schematic cross-sectional view of the present invention.
Fig. 4 is a schematic view of the section state installed in the cylinder of the electric hammer of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings:
referring to fig. 1-4, an air hammer for an electric hammer cylinder includes an air hammer body, the air hammer body includes a first sinking groove 1 and a second sinking groove 2, and the first sinking groove 1 and the second sinking groove 2 divide the air hammer body into three parts, as shown in fig. 1 and 2, a first part 3, a second part 4 and a third part 5.
The first part 3 and the second part 4 are positioned at two ends of the second sinking groove 2, the second part 4 and the third part 5 are positioned at two ends of the first sinking groove 1, namely, the front end of the air hammer is the first part 3, the middle position is the second part 4, and the rear end of the air hammer is the third part 5.
The first sinking groove 1 is used for installing a sealing ring 6, and the second sinking groove 2 is used for gas circulation.
In this embodiment, the first portion 3 is provided with a first vent groove 31, the second portion 4 is provided with a second vent groove 41, the third portion 5 is provided with a third vent groove 51, and two ends of the first vent groove 31 are respectively communicated with the front end space of the air hammer body and the second sink groove 2; two ends of the second vent groove 41 are respectively communicated with the second sinking groove 2 and the first sinking groove 1; two ends of the third vent groove 51 are respectively communicated with the first sink groove 1 and the rear end space of the air hammer body.
The first vent groove 31, the second sink groove 2, and the second vent groove 41 form a passage through which the air flow can flow toward the seal ring 6 during the reciprocating motion of the air hammer, and further, the groove bottom surface of the second vent groove 41 is located below the middle position of the seal ring 6 in the line diameter, and the middle position of the seal ring 6 in the line diameter is shown as D in fig. 3.
In the reciprocating motion process of the air hammer, the air flow exerts a force which can push the sealing ring 6 upwards on the sealing ring, and the sealing ring 6 can be ensured to meet the sealing requirement by depending on the force of the air flow under the condition that the sealing ring cannot meet the sealing requirement due to abrasion.
Meanwhile, the existing grease is easy to run to the outside of the air chamber 7 due to the problem of the internal and external pressure of the air chamber 7, and cannot lubricate the sealing ring 6.
In the case where the first air groove 31 has only the second air groove 2, the air chamber ventilation hole 71 is closed by the outer wall of the air hammer during the movement of the air hammer, and when the first air groove 31 is opened, the second air groove 2 and the corresponding ventilation hole 71 can be communicated with each other by the first air groove 31, so that the reciprocating movement of the air hammer can be smoother.
In this embodiment, the first vent groove 31, the second vent groove 41 and the third vent groove 51 are respectively axially opened on the outer wall of the air hammer body; the first vent grooves 31, the second vent grooves 41 and the third vent grooves 51 are respectively provided with a plurality of corresponding positions one by one; the first vent grooves 31, the second vent grooves 41, and the third vent grooves 51 are inclined grooves, straight grooves, threaded grooves, or offset grooves.
Because of first air channel 31 and second air channel 41 position one-to-one best correspond, set up third air channel 51 for this reason after, can reduce whole processing degree of difficulty, simultaneously, can also make the cavity keep the flow of a small amount of air current around the pneumatic hammer after setting up third air channel 51, the intercommunication of a small amount of air current flows can not influence the whole operation of device, and the lack can make more smooth and easy, the stability of pneumatic hammer operation.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides an air hammer for electric hammer cylinder, includes the air hammer body, including the first heavy groove that is used for setting up the sealing washer on the air hammer body, its characterized in that: and the outer wall of the air hammer body is provided with a vent groove communicated with the first sinking groove.
2. An air hammer for an electric hammer cylinder according to claim 1, wherein: the air hammer body is further provided with a second sinking groove, the first sinking groove and the second sinking groove divide the air hammer body into three parts, namely a first part, a second part and a third part, wherein the first part and the second part are positioned at two ends of the second sinking groove, and the second part and the third part are positioned at two ends of the first sinking groove;
the vent slots include a first vent slot on the first portion and a second vent slot on the second portion.
3. An air hammer for an electric hammer cylinder according to claim 2, wherein: two ends of the first vent groove are respectively communicated with the front end space of the air hammer body and the second sink groove;
and two ends of the second vent groove are respectively communicated with the second sinking groove and the first sinking groove.
4. An air hammer for an electric hammer cylinder according to claim 2 or 3, wherein: and a third air passing groove is formed in the third part, and two ends of the third air passing groove are respectively communicated with the first sinking groove and the rear end space of the air hammer body.
5. An air hammer for an electric hammer cylinder according to claim 4, wherein: the first vent groove, the second vent groove and the third vent groove are respectively and axially arranged on the outer wall of the air hammer body.
6. An air hammer for an electric hammer cylinder according to claim 5, wherein: the first vent groove, the second vent groove and the third vent groove are respectively provided with a plurality of vent grooves, and the positions of the vent grooves are in one-to-one correspondence.
7. An air hammer for an electric hammer cylinder according to claim 4, wherein: the first vent groove, the second vent groove and the third vent groove are inclined grooves, straight grooves, thread grooves or staggered grooves.
8. An air hammer for an electric hammer cylinder according to claim 2 or 3, wherein: and the bottom surface of the second vent groove is positioned below the middle position of the line diameter of the sealing ring.
9. An air hammer for an electric hammer cylinder according to claim 8, wherein: the first vent groove and the second vent groove are respectively and axially arranged on the outer wall of the air hammer body.
10. An air hammer for an electric hammer cylinder according to claim 9, wherein: the first ventilation grooves and the second ventilation grooves are respectively provided with a plurality of ventilation grooves, and the positions of the ventilation grooves correspond to one another;
the first vent groove and the second vent groove are inclined grooves, straight grooves, thread grooves or staggered grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223268083.1U CN218592912U (en) | 2022-12-07 | 2022-12-07 | Air hammer for electric hammer cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223268083.1U CN218592912U (en) | 2022-12-07 | 2022-12-07 | Air hammer for electric hammer cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218592912U true CN218592912U (en) | 2023-03-10 |
Family
ID=85408890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223268083.1U Active CN218592912U (en) | 2022-12-07 | 2022-12-07 | Air hammer for electric hammer cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218592912U (en) |
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2022
- 2022-12-07 CN CN202223268083.1U patent/CN218592912U/en active Active
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