TWI606900B - Carbon fiber seat for pneumatic hammer - Google Patents

Description

Carbon fiber seat for pneumatic hammer

The invention relates to a carbon fiber valve seat, in particular to a carbon fiber valve seat which can improve sensitivity, reduce cost and save energy.

According to the conventional pneumatic hammer system, by controlling the flow direction of the high-pressure gas, the hammer head is linearly actuated, thereby impact processing the object, and the existing pneumatic hammer has a valve seat in the casing to the flow direction of the high-pressure gas. The valve seat has a plurality of air holes and air passages for controlling the flow direction of the high pressure gas, and the valve seat of the existing pneumatic hammer is mainly formed by plastic or metal processing, wherein the plastic valve seat is light in weight, but its structural strength is insufficient. It is easy to cause cracking or damage after long-term use, which affects the flow of high-pressure gas and the transmission of power, so that the existing pneumatic hammer can not be accurately operated during use, which will increase the time required for processing and damage. The valve seat needs to be purchased with a new valve seat for replacement, which also increases the cost of use.

Furthermore, the valve seat formed by metal processing has sufficient structural strength, and although it is not easy to cause cracking after long-term use, the metal valve seat has a certain weight, so it is necessary to use higher pressure when used. The driving of the gas is not only relatively energy-intensive but also has a problem of heavy load. It can be seen that the structure and use of the valve seat of the existing pneumatic hammer are in need of improvement.

Therefore, in view of the lack of use and lack of structural and structural defects of the plastic or metal valve seat of the prior pneumatic hammer, it is not possible to have sufficient structural strength at the same time, and can be sensitively transmitted, and has an energy-saving effect. The research and experiment finally developed a invention that can improve the existing defects.

The present invention relates to a carbon fiber valve seat for a pneumatic hammer, which provides a carbon fiber valve seat capable of improving sensitivity, reducing cost and saving energy by a simplified structural arrangement; in order to achieve the above object, the present invention provides a The carbon fiber valve seat for a pneumatic hammer is provided with: a rear valve body formed by a carbon fiber material and provided with an air inlet groove, an air inlet, an exhaust ring groove, and at least one exhaust gas a port and at least one exhaust passage recessed in a front side of the rear valve body, the intake passage axially extending through a center of a rear side of the rear valve body and communicating with the intake groove, the exhaust The annular groove is recessed on the front side of the rear valve body and surrounds the outer portion of the air inlet groove. The at least one air outlet is axially recessed on the bottom surface of the exhaust ring groove, and the at least one exhaust passage runs through the radial direction. One side of the rear valve body and communicating with the at least one exhaust port; a front valve body, the front valve system conforming to the shape of the rear valve body and being formed by a carbon fiber material, the rear side of the front valve body and the rear The front side of the valve body abuts, the front valve body is provided with a venting groove, a venting seat and a venting port extending through the front side and the rear side of the front valve body and communicating with the intake groove of the rear valve body, the exhaust seat side being located on the rear side of the front valve body and located in the venting groove The outer periphery, the at least one exhaust port is axially recessed on the bottom surface of the exhaust seat; and a valve piece disposed between the rear valve body and the front valve body and formed by a carbon fiber material.

Further, as described above, the carbon fiber valve seat for the pneumatic hammer, the front valve body is recessed on the rear side with a groove surrounding the outer circumference of the exhaust seat of the front valve body, so that the front valve body is exhausted. The seat is located between the venting groove and the groove, and the valve plate is disposed in the exhaust ring groove of the rear valve body between the front valve body and the rear valve body.

Further, as described above, the carbon fiber valve seat for the pneumatic hammer, the rear valve body is recessed at the front side with at least one fixing hole located at the outer circumference of the exhaust ring groove of the rear valve body, and the front valve body Providing at least one perforation extending through the front side and the rear side of the front valve body and linearly opposite to at least one fixing hole of the rear valve body, the carbon fiber valve seat being provided with at least one of the front valve body and the rear valve body a fixed fixing pin, wherein the at least one fixing pin is coupled to at least one fixing hole of the rear valve body via at least one through hole of the front valve body, so that the front valve body passes through the at least one fixing pin and the rear valve The bodies are combined and placed close together.

Preferably, the carbon fiber valve seat for the pneumatic hammer is provided as described above, and the rear valve body is provided with two fixing holes on the outer circumference of the exhaust ring groove, and the front valve body is provided with two respectively and the rear The fixing holes of the two fixing holes of the valve body are opposite to each other, and the carbon fiber valve seat is provided with two fixing pins respectively passing through the two through holes and combined with the fixing holes.

According to the above technical means, the present invention is applied to a carbon fiber valve seat of a pneumatic hammer, wherein since the rear valve body, the front valve body and the valve piece of the carbon fiber valve seat are all formed by carbon fiber material, the entire carbon fiber valve seat of the present invention It has sufficient structural strength and is not prone to cracking or damage after long-term use, so that the high-pressure gas can flow accurately and the power is actually transmitted, so that the pneumatic hammer can accurately perform impact processing, which can greatly shorten the processing. The time required, and the need to purchase a new valve seat for replacement, can effectively reduce the cost of use; further, the carbon fiber seat can greatly reduce the overall weight of the valve seat compared with the existing metal-processed valve seat, therefore, The carbon fiber valve seat of the invention does not need to be driven by a gas with higher pressure when used, so that it can save energy and has no heavy load, thereby providing a pneumatic utility capable of improving sensitivity, reducing cost and saving energy. Hammer carbon fiber seat.

The present invention mainly provides a carbon fiber valve seat for a pneumatic hammer. Referring to Figures 1 to 4, the carbon fiber valve seat of the present invention is provided with a rear valve body 10, a front valve body 20, a valve plate 30 and At least one fixing pin 40, wherein:

The rear valve body 10 is an annular seat body formed by processing a carbon fiber material, and is provided with an air inlet groove 11, an air inlet 12, an exhaust ring groove 13, at least one exhaust port 14, and at least one exhaust gas. a passage 15 and at least one fixing hole 16, wherein the air inlet groove 11 is recessed at a center of a front side surface of the rear valve body 10, the air inlet 12 axially penetrating the center of the rear side surface of the rear valve body 10 and The air inlet groove 11 is communicated with the exhaust ring groove 13 and is recessed on the front side of the rear valve body 10 and surrounds the outside of the air inlet groove 11. The at least one air outlet 14 is axially recessed in the exhaust air. a bottom surface of the annular groove 13 , the at least one exhaust passage 15 radially penetrates a side of the rear valve body 10 and communicates with the at least one exhaust port 14 , and the at least one fixing hole 16 is recessed in the rear valve body 10 . The front side is located at the outer periphery of the exhaust ring groove 13. Preferably, the rear valve body 10 is provided with two fixing holes 16 at the outer periphery of the exhaust ring groove 13.

The front valve body 20 is an annular seat body conforming to the shape of the rear valve body 10 and formed by a carbon fiber material. The rear side surface of the front valve body 20 abuts against the front side surface of the rear valve body 10, the front valve The body 20 is provided with a venting groove 21, a groove 22, a venting seat 23, at least one venting opening 24, and at least one through hole 26, wherein the venting groove 21 extends through the front side and the rear side of the front valve body 20 and The air inlet groove 11 of the rear valve body 10 communicates with the groove 22 and is recessed on the rear side of the front valve body 20 and surrounds the outer circumference of the ventilation groove 21 . The exhaust seat 23 is disposed on the front valve body 20 . a rear side of the venting groove 21 and the groove 22, and a rim between the venting seat 23 and the groove 22, the at least one venting opening 24 is axially recessed in the row The bottom surface of the air seat 23, the at least one through hole 26 extends through the front side and the rear side of the front valve body 20 and is linearly opposed to the at least one fixing hole 16 of the rear valve body 10. Preferably, the front valve body 20 Two through holes 26 are formed which are linearly opposite to the fixing holes 16 of the rear valve body 10.

The valve piece 30 is an annular piece formed between the rear valve body 10 and the front valve body 20 and formed of a carbon fiber material. Further, the valve piece 30 is disposed on the exhaust of the rear valve body 10. The annular groove 13 is located between the front valve body 20 and the rear valve body 10; the at least one fixing pin 40 is coupled with the front valve body 20 and the rear valve body 10, wherein the at least one fixing pin 40 passes through At least one through hole 26 of the front valve body 20 is combined with at least one fixing hole 16 of the rear valve body 10, so that the front valve body 20 is coupled to the rear valve body 10 through the at least one fixing pin 40 and Preferably, the carbon fiber valve seat is provided with two fixing pins 40 respectively passing through the two through holes 26 and respectively coupled with the two fixing holes 16.

The carbon fiber valve seat of the present invention is used in a pneumatic hammer. Referring to Figures 5 and 6, the carbon fiber valve seat is disposed in a casing of a pneumatic hammer 60 and is located in a shock mount 61 and a cylinder 62. And communicating with an intake passage 63 of the pneumatic hammer 60, so that the high pressure gas entering the cylinder 62 can drive the pneumatic hammer 60 for use, wherein the rear valve body 10 and the front valve body 20 of the carbon fiber valve seat And the valve plate 30 is formed by carbon fiber material. Therefore, the entire carbon fiber valve seat of the invention has sufficient structural strength, and is not prone to cracking or damage after long-term use, so that the high-pressure gas can flow accurately and is indeed dynamic. The transmission is carried out so that the pneumatic hammer 60 can accurately perform the impact processing, the time required for the processing can be greatly shortened, and the replacement of the new valve seat is not required, and the cost of use can be effectively reduced; further, the carbon fiber valve seat is relatively In the existing metal working valve seat, the overall weight of the valve seat can be greatly reduced. Therefore, the carbon fiber valve seat of the present invention does not need to be driven by a gas with higher pressure when used, thereby saving energy relatively. No heavy load situations, thereby providing a sensitivity can be improved, and energy saving of the cost of carbon fiber for a pneumatic hammer, a valve seat.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any one of ordinary skill in the art can use the present invention without departing from the scope of the present invention. Equivalent embodiments of the invention may be made without departing from the technical scope of the present invention.

10‧‧‧ rear valve body
11‧‧‧Air intake slot
12‧‧‧ Inlet
13‧‧‧Exhaust ring groove
14‧‧‧Exhaust port
15‧‧‧Exhaust Road
16‧‧‧Fixed holes
20‧‧‧ front valve body
21‧‧‧ ventilation slots
22‧‧‧ Groove
23‧‧‧Exhaust seat
24‧‧‧Exhaust port
25‧‧‧Exhaust Road
26‧‧‧Perforation
30‧‧‧ Valves
40‧‧‧fixed pin
60‧‧‧Pneumatic hammer
61‧‧‧Anti-seismic seat
62‧‧‧ cylinder
63‧‧‧Intake runner

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a carbon fiber valve seat for a pneumatic hammer of the present invention. 2 is an exploded perspective view of a carbon fiber valve seat for a pneumatic hammer of the present invention. 3 is a partial cross-sectional perspective view of a carbon fiber valve seat for a pneumatic hammer of the present invention. Figure 4 is a cross-sectional side view of a carbon fiber valve seat for a pneumatic hammer of the present invention. Fig. 5 is a perspective view showing a partial cross section of a carbon fiber valve seat for a pneumatic hammer combined with a pneumatic hammer of the present invention. Figure 6 is a side elevational view, partly in section, of a carbon fiber valve seat for a pneumatic hammer in combination with a pneumatic hammer.

10‧‧‧ rear valve body

15‧‧‧Exhaust Road

20‧‧‧ front valve body

21‧‧‧ ventilation slots

40‧‧‧fixed pin

Claims (4)

A carbon fiber valve seat for a pneumatic hammer, which is provided with: a rear valve body formed by a carbon fiber material and provided with an air inlet groove, an air inlet, an exhaust ring groove, and at least one row a gas port and at least one exhaust passage recessed in a front side of the rear valve body, the air inlet axially penetrating through the center of the rear side of the rear valve body and communicating with the air inlet groove, the row a gas ring groove is recessed on a front side of the rear valve body and surrounds an outer portion of the air inlet groove, and the at least one air outlet is axially recessed on a bottom surface of the exhaust ring groove, and the at least one exhaust channel is radially a side of the rear valve body and communicating with the at least one exhaust port; a front valve body, the front valve system conforming to the shape of the rear valve body and being formed by a carbon fiber material, the rear side of the front valve body and the front valve body The front side of the rear valve body abuts, the front valve body is provided with a venting groove, a venting seat and at least one venting opening, the venting groove penetrating the front side and the rear side of the front valve body and the rear valve body The air intake groove communicates with the exhaust seat side on the rear side of the front valve body and on the outer circumference of the ventilation groove, the at least one exhaust port The bottom surface of the recess provided in the exhaust seat; and a valve plate, the valve plate disposed between the front and the rear valve body and formed from carbon fiber material processing. The carbon fiber valve seat for a pneumatic hammer according to claim 1, wherein the front valve body is recessed on the rear side with a groove surrounding the outer circumference of the exhaust seat of the front valve body, so that the front valve body is arranged. The air seat is disposed between the venting groove and the groove, and the valve plate is disposed in the exhaust ring groove of the rear valve body between the front valve body and the rear valve body. The carbon fiber valve seat for a pneumatic hammer according to claim 1 or 2, wherein the rear valve body is recessed on the front side with at least one fixing hole located at an outer circumference of the exhaust ring groove of the rear valve body, and the front portion The valve body is provided with at least one perforation extending through the front side and the rear side of the front valve body and linearly opposite to at least one fixing hole of the rear valve body, the carbon fiber valve seat being provided with at least one and the front valve body and the rear valve a body-mounted fixing pin, wherein the at least one fixing pin is coupled to at least one fixing hole of the rear valve body via at least one through hole of the front valve body, so that the front valve body passes through the at least one fixing pin The rear valve bodies are combined and abutted against each other. The carbon fiber valve seat for a pneumatic hammer according to claim 3, wherein the rear valve body is provided with two fixing holes on the outer circumference of the exhaust ring groove, and the front valve body is provided with two and the rear valve body respectively. The two fixing holes are opposite to each other in a straight line, and the carbon fiber valve seat is provided with two fixing pins respectively passing through the two through holes and combined with the fixing holes.