TWM505551U - Pressure boosting cylinder - Google Patents

Description

Booster cylinder

This creation relates to the field of hand tools, in particular to a booster cylinder, which can be selected for different sizes or sizes.

In the field of industrial automation, through the precise design, some zero parts are planned to be assembled together, driven by power, to perform a certain operation or to achieve certain purposes. The power referred to herein includes, in addition to the motor, the pressure of the fluid, such as air pressure or oil pressure.

Taking the air pressure as an example, the advantage is that the moving speed of the stroke is relatively fast, and the disadvantage is that the force is small. In particular, the air pressure is susceptible to external factors (such as the reaction force of the workpiece), so the stability is poor and the processing accuracy is poor.

In terms of oil pressure, the advantage is that the force is large, and the disadvantage is that the flow rate is slow and the stroke speed is delayed. Secondly, when the machine is stopped, the hydraulic equipment still needs to continue to operate, resulting in unnecessary loss of energy. In particular, the hydraulic equipment that is continuously operated, the output oil is not only high in temperature, but also relatively thick, and relatively increases the manufacturing cost.

As a result, some oil and gas hybrid pressure cylinders have appeared on the market in an attempt to combine the advantages of both, and use them on the same machine or equipment. For example, the cutting machine performs the feeding operation with the oil pressure to improve the stability, and the quick retracting operation by the air pressure improves the machining efficiency.

This type of oil and gas hybrid pressure cylinder is additionally equipped with a control mechanism. The control mechanism usually refers to the control valve, which determines the pressure and pressure conversion of the pressure cylinder. Control valves and oil and gas hybrid pressure cylinders take up a lot of space.

Secondly, the oil and gas hybrid pressure cylinder is composed of many hydraulic cylinders and pneumatic cylinders, which are not only complicated in structure but also difficult to assemble. In order to maintain stability, the use of high-power hydraulic cylinders, in addition to increasing the cost of equipment expenditure, hydraulic oil motor has not been fully rested, relatively shorten the period of use, can not effectively solve the instability caused by the rise in oil temperature problem.

Therefore, how to improve the drawbacks of oil and gas hybrid pressure cylinders has become an urgent problem to be solved in this creation.

In view of this, the present invention provides a pressurized cylinder, one of the purposes of which is to use an integrally formed cylinder to reduce the occupation of space, avoid the trouble of gas leakage, and have the advantages of accurate overall operation.

One of the purposes of this case is: the cylinder is small in size, short in air passage, low in failure rate, not only easy to maintain, but also easy to assemble.

One of the purposes of this case is to shorten the assembly time and reduce the processing cost.

Due to the above object, the pressurized cylinder of the present invention comprises: a base, a compression spring, a piston, a body fastened to the base and a valve. Wherein, the base has an oil passage, and the oil passage includes: a constant hole, an inlet and an outlet. The piston has an actuating rod for the actuating rod to pass through the compression spring and penetrate the base from the straight hole of the oil passage.

The main body has an air passage, the air passage includes: a pneumatic chamber, which allows the piston to move in the air pressure chamber; a passage, one end of which is closed, the other end is in communication with the air pressure chamber; and an air intake flow passage, one end of which is connected to the outside, and the other end is connected to the outside. The end of the connecting channel is away from the closed end; an air flow path, one end of which is connected to the air pressure compartment, and the other end of the connecting channel is adjacent a portion near the closed end; an exhaust flow passage, one end of which is connected to the outside, and the other end is connected to the middle portion of the passage; and a pressure relief flow passage, one end of which is connected to the air pressure chamber, and the other end is connected to the middle portion of the passage.

The valve is placed in the passage of the main body and reciprocates between the following positions: in the pressurized position, the valve is blocked between the exhaust flow path and the pressure relief flow path, and the external gas is guided by the intake flow path. Through the air pressure chamber and the air outlet passage, the steering passage is pressed and the valve is pressed, and the piston is pressed against the compression spring to make the operating rod penetrate the oil passage of the base; in the pressure relief position, the valve blocks the intake flow passage from being no longer ingested. However, the exhaust flow passage communicates with the pressure relief flow passage, and the pressure chamber takes a decompression effect, so that the piston is pushed back to the original position by the compression spring, and the movable rod is retracted to the straight hole of the base.

In this way, the main body of the creation is used as a cylinder, and the supercharged cylinder formed by the combination not only reduces the space occupation, but also forms an air passage in the main body, effectively solves the problem of gas leakage, and has the advantages of precise operation.

In addition, the booster cylinder of the present invention has small volume, few components, short air passage and low failure rate, and is not only easy to maintain, but also easy to assemble, and shortens the assembly time and relatively reduces the processing cost.

Next, with the necessary drawings, a detailed description will enable your review committee to have a deep and specific understanding of the structure, installation, purpose and efficacy of this creation.

10‧‧‧Supercharged cylinder

12‧‧‧ cover

14‧‧‧ screws

16‧‧‧Act

18‧‧‧fasteners

20‧‧‧Base

21‧‧‧ Straight hole

22‧‧‧ oil road

23‧‧‧ convex

24‧‧‧ entrance

25‧‧‧ Ring groove

26‧‧‧Export

28‧‧‧ openings

30‧‧‧Piston

32‧‧‧Action rod

34‧‧‧Compression spring

36‧‧‧ rods

38‧‧‧ Segment

40‧‧‧ Subject

41‧‧‧Air outlet

42‧‧‧ airway

43‧‧‧Exhaust runner

44‧‧‧Pneumatic chamber

45‧‧‧Relief flow passage

46‧‧‧ channel

48‧‧‧Intake runner

49‧‧‧Perforation

50‧‧‧ valve

51‧‧‧ main ditch

52‧‧‧ head

53‧‧‧ concave surface

54‧‧‧column

55‧‧‧Shallow ditch

56‧‧‧ neck

57‧‧‧ Washer

58‧‧‧Main ring

60‧‧‧ accommodating slots

61‧‧‧Intake trough

62‧‧‧pressure tank

64‧‧‧Class slot

66‧‧‧Exhaust trough

68‧‧‧ Ring groove

Figure 1 is an exploded view of a preferred embodiment of the inventive booster cylinder.

Figure 2 is a perspective cross-sectional view of the base.

Fig. 3 is a perspective cross-sectional view showing the combination of the supercharged cylinders.

Figures 4 to 6 are schematic views of the continuous operation of the booster cylinder.

Referring to Figures 1 and 2, a specific configuration of the preferred embodiment of the booster cylinder 10 is illustrated by a base 20, a compression spring 34, a piston 30, a body 40 and a valve 50.

The base 20 is an integrally formed rectangular body, and an oil passage 22 is formed therein to open to the outside through the straight hole 21, an inlet 24, an outlet 26, and an opening 28. A one-way valve (not shown) is installed at the inlet 24 and the outlet 26 of the oil passage 22, the one-way valve of the inlet 24 is only inaccessible, and the one-way valve of the outlet 26 is only inaccessible. The opening 28 engages an external source of power, such as an air compressor.

In addition, a protrusion 23 and a ring groove 25 are formed on the outer surface of the base 20, and a ring groove 25 surrounds the periphery of the protrusion 23 for accommodating the compression spring 34. The aforementioned straight hole 21 is formed in the center of the convex portion 23.

It will be understood from Figures 1, 3 and 6 that the longitudinal section of the piston 30 is generally U-shaped and can accommodate a portion of the actuating rod 32. The actuating rod 32 is shaped to distinguish between a rod segment 36 and a disk segment 38. The rod segment 36 is generally rounded and can pass through the compression spring 34 into the base 20 from the straight bore 21 of the oil passage 22. The top surface of the disk segment 38 supports the piston 30. The center of the bottom surface is connected to the rod segment 36, and the remaining portion of the bottom surface abuts against the compression spring 34.

The main body 40 is an integrally formed hollow body having a substantially rectangular outline and forming a fisheye-like perforation 49 at four corners of the main body 40. Four fasteners 18 (such as bolts) pass through respective perforations 49 and lock the base 20, i.e., complete the basic structure of the booster cylinder 10.

An air passage 42 is disposed inside the main body 40 and includes an air flow passage 41, an exhaust flow passage 43, a pressure chamber 44, a pressure relief flow passage 45, and a passage 46. Among them, the flow passages 41, 43, and 45, such as air outlet, exhaust, and pressure relief, are formed at appropriate positions on the wall of the main body 40.

The air pressure chamber 44 is formed in the lower half of the main body 40 so that the main body 40 can cover the convex portion 23 of the base 20, the piston 30, and the actuating lever 32. Therefore, the piston 30 can move in the air pressure chamber 42.

The passage 46 is formed in the upper half of the body 40, one end of which is closed and the other end of which is in communication with the pneumatic chamber 44. Specifically, the passage 46 is substantially a circular hole and is divided into a receiving groove 60, an inlet groove 61, a pressing groove 62, a class groove 64, a venting groove 66 and a ring groove 68 according to different diameters.

The receiving groove 60 is recessed into the top surface of the main body 40 and belongs to the top end of the passage 46. It is in communication with the pressure groove 62 and farthest from the air pressure chamber 44 for accommodating a cover 12 of a shape. The cover 12 is fastened to the body 40 by other fasteners (e.g., screws 14) to form a closed end of the passage 46.

The pressurized tank 62 is slightly further from the pneumatic chamber 44 and communicates with the level groove 64. The main body 40 opens one end of the air flow path 41 around the wall surface of the pressure groove 62, and the other end of the air flow path 41 leads to the air pressure chamber 44. A ring body 16 is added to the pressurizing groove 62, and the ring body 16 blocks the gap between the cover 12 and the receiving groove 60 to avoid the trouble of gas leakage.

The exhaust groove 66 corresponds to the intermediate portion of the passage 46, the upper joint groove 64, and the lower annular groove 68. One end of the exhaust flow path 43 is opened by the main body 40 around the wall surface of the exhaust groove 66, and the exhaust flow path 43 is connected to the outside.

The annular groove 68 is also in the middle of the passage 46, which is interposed between the inlet groove 61 and the exhaust groove 66 and spaced apart from each other by a certain distance. One end of the exhaust flow path 43 is opened by the main body 40 around the wall surface of the annular groove 68, and the other end of the pressure relief flow path 45 is connected to the pneumatic chamber 42.

The air inlet 61 is located below the passage 46, adjacent to the air pressure chamber 44 and to one end of the aforementioned intake air passage 48. The other end of the intake air passage 48 leads to the outside, and can guide a certain pressure of gas into the main body 40. in.

The valve 50 is placed in the passage 46 of the body 40 to be in a pressurized position. Reciprocating with a pressure relief position. Specifically, the valve 50 has a neck 56, and the two ends of the neck 56 are connected to a head 52 and a post 54 respectively.

A main groove 51 is formed around the head 52 to allow a main ring 58 to fit within the main groove 51 of the head 52. The head 52 is constrained by the cover 12 and is movable between the pressure groove 62 and the class groove 64 such that the main ring 58 touches the body 40 around the wall surface of the class groove 64, preventing the class groove 64 from communicating with the pressure groove 62.

The column 54 is substantially a round bar. The column 54 has a plurality of concave curved surfaces 53 extending along the length direction and a plurality of shallow grooves 55 recessed along the radial direction, allowing a plurality of washers 57 to be respectively sleeved on the column 54. Shallow groove 55.

As shown in the third to sixth figures, in the pressurized position, the upper and lower sides of the ring groove 68 are blocked by the adjacent gaskets 57, so that the exhaust runner 43 and the pressure relief passage 45 are blocked. At the same time, the upper portion of the air inlet 61 is also blocked by the gasket 57 so that the air inlet 61 communicates with the air pressure chamber 44 below.

At this moment, the outside air is guided by the intake air passage 48 (refer to the arrow direction of FIG. 3), passes through the gap between the air inlet 61 and the concave curved surface of the column 54, passes through the air pressure chamber 44 and the air flow passage 41, and turns to the passage 46 and The valve 50 is pressed, and the piston 30 (see the direction of the arrow in FIG. 4) is pressed to press the compression spring 34, so that the actuating rod 32 penetrates the oil passage 22 of the base 20, presses the oil passage 22, and outputs oil to obtain the air pressure conversion oil pressure. efficacy. The compression spring 34 is deformed to accumulate the force required to return the piston 30 to its home position.

When the air pressure of the pressure tank 62 is greater than the air pressure of the air pressure chamber 44, the valve 50 gradually moves toward the air pressure chamber 44. In other words, the valve 50 will move from the pressurized position to the pressure relief position.

At the pressure relief position, the upper and lower sides of the intake groove 61 are blocked by the adjacent gaskets 57, so that the outside air cannot enter from the intake passage 48. The ring groove 68 is blocked by the gasket 57 and cannot be connected to the air inlet groove 61. The pressure relief passage 45 leads to the exhaust runner 43 via the annular groove 68.

Therefore, the gas in the air pressure chamber 44 is deflected from the pressure relief passage 45 through the annular groove 68 and the concave curved surface 53 of the column 54 to the class groove 64, and is released from the exhaust flow path 43 to the outside (refer to the arrow directions in Figs. 5 and 6). . At this moment, the force accumulated by the compression spring 34 is released by the air pressure of the air pressure chamber 44, and the piston 30 is pushed to the original position, and the actuating lever 32 is retracted into the straight hole 21 of the base 20 to cause the oil passage 22 to absorb oil.

The valve 50 is pushed back to the pressurized position by the piston 30, and the outside air flows from the intake passage 48 into the pressure chamber 44 again, and enters the pressure tank 62 again via the outlet air passage 41, thereby driving the valve 50 to gradually move toward the pressure relief position. The chain reaction occurs repeatedly, and the gas and oil pressure are continuously converted and the output operation is performed automatically.

10‧‧‧Supercharged cylinder

12‧‧‧ cover

20‧‧‧Base

21‧‧‧ Straight hole

22‧‧‧ oil road

23‧‧‧ convex

24‧‧‧ entrance

25‧‧‧ Ring groove

30‧‧‧Piston

32‧‧‧Action rod

34‧‧‧Compression spring

36‧‧‧ rods

38‧‧‧ Segment

40‧‧‧ Subject

41‧‧‧Air outlet

42‧‧‧ airway

44‧‧‧Pneumatic chamber

48‧‧‧Intake runner

50‧‧‧ valve

52‧‧‧ head

54‧‧‧column

56‧‧‧ neck

57‧‧‧ Washer

58‧‧‧Main ring

61‧‧‧Intake trough

62‧‧‧pressure tank

64‧‧‧Class slot

66‧‧‧Exhaust trough

68‧‧‧ Ring groove

Claims (6)

A booster cylinder includes: a base (20) having an oil passage (22) including: a constant hole (21), an inlet (24) and an outlet (26); a compression spring (34); a piston (30), which has an actuating rod (32), the actuating rod (32) passes through the compression spring (34) and penetrates the base (20) from the straight hole (21) of the oil passage (22); a body (40) fastened to the base (20) having an air passage (42), the air passage (42) comprising: a pneumatic chamber (44) for allowing the piston (30) to move in the air chamber (42); (46), one end of which is closed, the other end is in communication with the air pressure chamber (44); an air inlet flow path (48), one end of which is connected to the outside, and the other end of the connecting passage (46) is away from the closed end; The road (41) has one end connected to the air pressure chamber (44), and the other end of the connecting passage (46) is adjacent to the closed end portion; an exhaust flow path (43), one end of which is connected to the outside, and the other end is connected to the middle portion of the passage (46). a pressure relief flow passage (45) having one end connected to the air pressure chamber (42) and the other end engaging the intermediate portion of the passage (46); a valve (50) placed in the passage (46) of the main body (40) a pressurizing position reciprocating with a pressure relief position; in the pressurized position, the valve (50) Blocked between the exhaust runner (43) and the pressure relief runner (45), the outside air is guided by the intake runner (48), passing through the gas The ballast (44) and the air outlet passage (41), the steering passage (46) and the valve (50) are pressed, and the piston (30) is pressed against the compression spring (34), so that the operating rod (32) penetrates the base (20) The oil circuit (22); in the pressure relief position, the valve (50) blocks the intake flow passage (48) from being inhaled, but connects the exhaust flow passage (43) to the pressure relief passage (45). The pneumatic chamber (44) is depressurized so that the piston (30) is pushed back into place by the compression spring (34) and the actuator rod (32) is retracted to the straight hole (21) of the base (20). The booster cylinder according to claim 1, wherein the base (20) has a convex portion (23) and a ring groove (25) surrounding the convex portion (23) at the convex portion (23). The center forms the aforementioned straight hole (21), and the ring groove (25) accommodates the aforementioned compression spring (34). The booster cylinder according to claim 1, wherein the passage (46) comprises the following structure: a pressurizing groove (62) that communicates with the outlet air passage (41) away from the air pressure chamber (44); a class slot (64) communicating with the pressure groove (62); a venting groove (66) connecting the class groove (64) with the exhaust runner (43); a ring groove (68), It is separated from the exhaust groove (66) which is connected to the pressure relief flow passage (45); an inlet air passage (61) adjacent to the air pressure chamber (44) and the intake air The flow channels (48) are connected. The booster cylinder according to claim 3, wherein the passage (46) further has a receiving groove (60) communicating with the pressurizing groove (62) and being separated from the pneumatic chamber (44) The farthest; a cover (12) placed into the receiving groove (60), the cover (12) fastening the body (40) to become the closed end of the channel (46). The pressurizing cylinder according to claim 4, wherein the pressurizing groove (62) is provided with a ring body (16), and the ring body (16) blocks the gap between the cover (12) and the receiving groove (60). . A booster cylinder according to claim 4, wherein the valve (50) comprises: a head (52) surrounding a main groove (51), the head (52) being limited by the cover (12) And moving between the pressurizing groove (62) and the class groove (64); a column (54) which is substantially a round bar, and a plurality of concave curved surfaces extending in the longitudinal direction on the outer surface of the column (54) ( 53) and a plurality of shallow grooves (55) recessed in a radial direction; a neck portion (56), the two ends of which are respectively connected to the head (52) and the column (54); and a main ring (58) which is placed over the head ( 52) the main groove (51) and touching the body (40) around the wall surface of the class groove (64); a plurality of washers (57), each of the washers (57) being placed in the corresponding shallow groove (55) of the column (54) In the pressurized position, the two adjacent washers (57) block the upper and lower sides of the ring groove (68), so that the exhaust gas flow path (43) and the pressure relief flow path (45) are blocked, and the outside air is in the intake flow path. (48) Guide, through the concave curved surface (53) of the air inlet groove (61) and the column (54), through the air pressure chamber (44) and the air flow passage (41), the steering passage (46) and the valve (50) Pressing, the piston (30) is pressed against the compression spring (34), so that the actuating rod (32) penetrates the oil passage (22) of the base (20); in the pressure relief position, the two adjacent washers (57) Inserted into the gas cell (61), Below, the intake runner (48) is no longer ingested, and the gas in the pneumatic chamber (44) is diverted from the pressure relief passage (45) through the annular groove (68) to the concave curved surface (53) of the column (54) to the class groove. (64), releasing pressure from the exhaust runner (43) to the outside, so that the piston (30) is pushed back to the original position by the compression spring (34), and the movable rod (32) is retracted into the straight hole of the base (20) (21) ).