CN217440420U

CN217440420U - Oil-gas mixing cylinder

Info

Publication number: CN217440420U
Application number: CN202221174275.3U
Authority: CN
Inventors: 何泽康
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-09-16
Anticipated expiration: 2032-05-16

Abstract

The utility model provides an oil-gas mixing cylinder, including the hydro-cylinder that is equipped with first hole, the cylinder section of thick bamboo that is equipped with the second hole, the separation sleeve, the piston rod, and all fix hydro-cylinder piston and the cylinder piston on the piston rod, hydro-cylinder and cylinder are two mutually independent parts, and fixed mutually, the fixed connection department at hydro-cylinder and cylinder is fixed to the separation sleeve, and shutoff first hole and second hole, the piston rod is movably worn to establish in first hole, in separation sleeve and the second hole, the hydro-cylinder piston is arranged in first hole, and with the section of thick bamboo wall sliding fit of hydro-cylinder, the cylinder piston is arranged in the second hole, and with the section of thick bamboo wall sliding fit of cylinder section of thick bamboo. In this application, be split type structure, be not an organic whole structure between oil cylinder and the gas cylinder, so can conveniently fix the separation sleeve between oil cylinder and gas cylinder, can realize the accurate installation location of separation sleeve easily simultaneously, improve the installation accuracy of separation sleeve from this, and reduce the installation degree of difficulty of separation sleeve.

Description

Oil-gas mixing cylinder

Technical Field

The utility model relates to an engineering machine tool equipment field especially relates to an oil-gas mixing cylinder.

Background

At present, oil-gas mixing cylinders are arranged on engineering machinery equipment such as breaking hammers, excavators and transport vehicles. The oil-gas mixing cylinder mainly comprises a cylinder barrel, an isolation sleeve, a piston rod movably arranged in the cylinder barrel, an oil cylinder piston and an oil cylinder piston which are fixed on the piston rod, wherein an inner hole of the cylinder barrel is a stepped inner hole, namely the diameters of a left inner hole and a right inner hole of the cylinder barrel are different, the air cylinder piston is movably assembled in the left inner hole of the cylinder barrel, the oil cylinder piston is movably assembled in the right inner hole of the cylinder barrel, and the isolation sleeve is assembled at the stepped part of the inner hole of the cylinder barrel and is fixed by using bolts. Therefore, the cylinder barrel of the oil-gas mixing cylinder with the existing structure is of an integrated structure, so that the oil-gas mixing cylinder has the following defects:

1. the cylinder barrel is required to punch the cylinder wall at the installation position of the isolation sleeve, and is used for installing a fixing bolt and performing bidirectional limiting; however, the bolts are easy to break, and particularly, the cylinder barrel is easy to crack at the punching position of the cylinder barrel due to vibration generated in the using process of the oil-gas mixing cylinder, so that the service life is very short.

2. When the isolation sleeve is installed, the punching position is very difficult to find, particularly the punching position of the long cylinder barrel.

3. The terminal surface of spacer sleeve is in the inside of cylinder, and installation spacer sleeve needs accomplish in the cylinder, because the cylinder is deep hole structure, even use professional instrument installation, also hardly accomplishes the accurate installation location of spacer sleeve.

4. The inner hole of the cylinder barrel is a stepped hole with different left and right sizes, so the cylinder barrel is a non-standard cylinder barrel, the conventional honing machine cannot manufacture the cylinder barrel, and the conventional processing equipment is difficult to manufacture the cylinder barrel with the stepped hole coaxiality meeting the design precision, namely the cylinder barrel is very difficult to manufacture, and the product precision is difficult to achieve the design precision.

5. The cylinder part of the cylinder barrel is of a fixed inner diameter size, and pressure transformation cannot be realized.

SUMMERY OF THE UTILITY MODEL

In view of the above shortcoming of the prior art, the to-be-solved technical problem of the utility model is to provide an oil-gas mixing cylinder, the accurate installation location of the spacer sleeve of being convenient for.

In order to achieve the above object, the utility model provides an oil-gas mixing cylinder, including the hydro-cylinder section of thick bamboo that is equipped with first hole, the cylinder section of thick bamboo that is equipped with the second hole, separation sleeve, piston rod and all fix hydro-cylinder piston and the cylinder piston on the piston rod, hydro-cylinder section of thick bamboo and cylinder section of thick bamboo be two mutually independent parts, and fixed mutually, the separation sleeve is fixed in the fixed connection department of hydro-cylinder section of thick bamboo and the first hole of shutoff and second hole, the piston rod is movably worn to establish in first hole, separation sleeve and second hole, the hydro-cylinder piston is arranged in first hole and with the section of thick bamboo wall sliding fit of hydro-cylinder section of thick bamboo, the cylinder piston is arranged in the second hole and with the section of thick bamboo wall sliding fit of cylinder section of thick bamboo.

Furthermore, a first flange part is arranged at the end part of the oil cylinder barrel close to the isolation sleeve, a second flange part is arranged at the end part of the air cylinder barrel close to the isolation sleeve, and the first flange part and the second flange part are fixedly connected through a plurality of bolts; the inner periphery of the first flange part is provided with a fixing cavity for accommodating the isolating sleeve and a limiting flange abutted against one end of the isolating sleeve, the end part of the second flange part is provided with a limiting convex part abutted against the other end of the isolating sleeve, and the isolating sleeve is clamped and fixed between the limiting flange and the limiting convex part.

Further, the oil cylinder barrel is fixedly provided with an installation shaft at the periphery of the first flange part, and the installation shaft is perpendicular to the piston rod.

Furthermore, the oil-gas mixing cylinder is of a modular structure, the oil cylinder barrel forms a first assembly module, the air cylinder barrel forms a second assembly module, the isolation sleeve forms a third assembly module, and the piston rod, the oil cylinder piston and the air cylinder piston form a fourth assembly module.

Furthermore, the oil cylinder piston divides the first inner hole into a first oil cavity and a second oil cavity which are not communicated with each other, and the oil cylinder barrel is provided with a first oil duct communicated with the first oil cavity and a second oil duct communicated with the second oil cavity.

Furthermore, the oil cylinder piston divides the first inner hole into a first oil cavity and a second oil cavity which are not communicated with each other, a plurality of third oil ducts which are communicated with the first oil cavity are arranged in the isolating sleeve, and a fourth oil duct which is communicated with the second oil cavity and a fifth oil duct which is positioned on the outer peripheral side of the isolating sleeve and is communicated with the third oil duct are arranged on the oil cylinder barrel.

Further, the second inner hole is divided into a negative pressure air cavity and a high pressure air cavity which are not communicated by the cylinder piston, and the cylinder barrel is provided with a first air valve communicated with the negative pressure air cavity and a second air valve communicated with the high pressure air cavity.

Further, the first gas valve and the second gas valve are both one-way valves, and the gas flow directions of the first gas valve and the second gas valve are opposite.

Furthermore, the oil cylinder barrel is fixed with sealed uide bushing in the one end department of keeping away from the isolation sleeve, the piston rod is movably worn to establish in sealed uide bushing.

Furthermore, a mounting sleeve is fixed at one end of the cylinder barrel far away from the isolation sleeve, and a mounting hole is formed in the mounting sleeve.

As the above, the utility model relates to an oil-gas mixing cylinder has following beneficial effect:

in the oil-gas mixing cylinder that this application relates to, the separation sleeve is fixed between oil cylinder and gas cylinder, and be split type structure, both mutual independence between oil cylinder and the gas cylinder, is not an organic whole structure, so can conveniently fix the separation sleeve between oil cylinder and gas cylinder, can realize the accurate erection site of separation sleeve simultaneously easily, improve the installation accuracy of separation sleeve from this, and reduce the installation degree of difficulty of separation sleeve.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of an oil-gas mixing cylinder in the present application.

Fig. 2 is a front view of the spacer sleeve of fig. 1.

Fig. 3 is a schematic structural diagram of a second embodiment of the oil-gas mixing cylinder in the present application.

Fig. 4 is a front view of the spacer sleeve of fig. 3.

Description of the element reference numerals

10 oil cylinder barrel

101 first flange part

102 fixed cavity

103 position-limiting flange

104 first oil chamber

105 second oil chamber

106 first oil passage

107 second oil passage

108 fourth oil gallery

109 fifth oil gallery

20 cylinder barrel

201 second flange part

202 limit convex part

203 negative pressure air cavity

204 high-pressure air cavity

205 first air valve

206 second air valve

30 spacer sleeve

301 third oil passage

40 piston rod

50 oil cylinder piston

60 cylinder piston

70 mounting shaft

80 sealing guide sleeve

90 mounting sleeve

901 mounting hole

110 nut

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

It should be understood that the drawings of the present application are only used to match the contents disclosed in the specification, so as to be known and read by those skilled in the art, and not to limit the practical limitations of the present invention, so that the present application does not have any technical significance, and any modification of the structure, change of the ratio relationship, or adjustment of the size should still fall within the scope of the present application without affecting the function and the achievable purpose of the present application. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", and the like used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be considered as the scope of the present invention without substantial changes in the technical content.

The utility model provides an oil-gas mixing cylinder for among mechanical equipment such as quartering hammer, excavator.

As shown in fig. 1 or fig. 3, the oil-gas mixing cylinder of the present invention includes an oil cylinder tube 10 having a first inner hole, a cylinder tube 20 having a second inner hole, a spacer sleeve 30, a piston rod 40, and an oil cylinder piston 50 and an air cylinder piston 60 both fixed on the piston rod 40, wherein the oil cylinder tube 10 and the air cylinder tube 20 are two independent components, and the oil cylinder tube 10 and the air cylinder tube 20 are arranged side by side in the moving direction of the piston rod 40; in the embodiment shown in fig. 1 or 3, the oil cylinder tube 10 is arranged on the right side of the cylinder tube 20; the left end of the oil cylinder barrel 10 and the right end of the gas cylinder barrel 20 are fixed, the isolation sleeve 30 is fixed at the fixed connection position of the oil cylinder barrel 10 and the gas cylinder barrel 20, and the isolation sleeve 30 seals a first inner hole of the oil cylinder barrel 10 and a second inner hole of the gas cylinder barrel 20, so that the oil cylinder barrel 10 and the gas cylinder barrel 20 are separated and not communicated with each other; the piston rod 40 is movably arranged in the first inner hole, the isolation sleeve 30 and the second inner hole in a penetrating way, the oil cylinder piston 50 is positioned in the first inner hole and is in sliding fit with the cylinder wall of the oil cylinder barrel 10, and the air cylinder piston 60 is positioned in the second inner hole and is in sliding fit with the cylinder wall of the air cylinder barrel 20. In the oil-gas mixing cylinder, the isolation sleeve 30 plays a role in isolation, and simultaneously plays a role in ensuring the coaxiality of two sections of the piston rod 40.

In the oil-gas mixing cylinder, the piston rod 40 is moved leftwards under the action of hydraulic oil in the first inner hole of the oil cylinder barrel 10, and the piston rod 40 is moved rightwards under the action of high-pressure gas in the second inner hole of the cylinder barrel 20, so that the piston rod 40 is moved leftwards and rightwards in a reciprocating manner, and the oil-gas mixing cylinder can be used for driving other moving parts to move, such as a breaking hammer to beat. Among the above-mentioned oil gas hybrid cylinder, separation sleeve 30 is fixed between oil cylinder section 10 and gas cylinder section 20, and be split type structure between oil cylinder section 10 and the gas cylinder section 20, both mutual independence, be not an organic whole structure, so can conveniently fix separation sleeve 30 between oil cylinder section 10 and gas cylinder section 20, can realize separation sleeve 30's accurate erection site easily simultaneously, improve separation sleeve 30's installation accuracy from this, and reduce separation sleeve 30's the installation degree of difficulty, effectively solved among the prior art separation sleeve 30 be difficult to the erection fixation in the cylinder section of integral type structure, the problem that installation positioning accuracy is low. In addition, after the oil cylinder barrel 10 and the air cylinder barrel 20 of the split structure are adopted, the lengths of inner holes of the oil cylinder barrel 10 and the air cylinder barrel 20 can be relatively reduced, so that the oil cylinder barrel 10 and the air cylinder barrel 20 are easy to process and manufacture, and the manufacturing cost is reduced.

Further, the fixing structure among the oil cylinder tube 10, the cylinder tube 20 and the isolation sleeve 30 is preferably: as shown in fig. 1 or fig. 3, a first flange portion 101 is disposed at the left end of the oil cylinder barrel 10, a second flange portion 201 is disposed at the right end of the cylinder barrel 20, and the first flange portion 101 and the second flange portion 201 are fixedly connected by a plurality of bolts; a fixed cavity 102 for accommodating the isolation sleeve 30 and a limit flange 103 positioned at the right end of the fixed cavity 102 are arranged on the inner periphery of a first flange part 101 in the oil cylinder barrel 10, the limit flange 103 protrudes inwards in the radial direction, and the limit flange 103 is abutted against the right end face of the isolation sleeve 30; the right end of the second flange portion 201 in the cylinder barrel 20 is provided with a limiting convex portion 202 protruding rightward, and the limiting convex portion 202 abuts against the left end face of the spacer 30. Thus, when the spacer 30 is installed, the spacer 30 is first placed in the fixing cavity 102 of the first flange 101 of the oil cylinder 10, and then the first flange 101 of the oil cylinder 10 and the second flange 201 of the gas cylinder 20 are fixed by a plurality of bolts, so that the spacer 30 can be clamped and fixed between the limit flange 103 and the limit protrusion 202, thereby realizing the fixed installation of the spacer 30. The fixing structure can avoid punching on the cylinder walls of the oil cylinder barrel 10 and the air cylinder barrel 20, effectively avoid the oil cylinder barrel 10 and the air cylinder barrel 20 from cracking, and enable the oil cylinder barrel 10 and the air cylinder barrel 20 to be durable; further, the first flange portion 101 and the second flange portion 201 are bored to facilitate the operation, and the oil cylinder tube 10 and the gas cylinder tube 20 are easily processed. Meanwhile, the bolt fixing mode is adopted, the bolt fixing mode is detachably and fixedly connected, the oil cylinder barrel 10, the air cylinder barrel 20 and the isolation sleeve 30 can be quickly disassembled and assembled, and maintenance of parts is facilitated.

Preferably, as shown in fig. 1 or fig. 3, the oil cylinder barrel 10 is fixedly provided with a mounting shaft 70 at the outer periphery of the first flange portion 101, and the mounting shaft 70 is perpendicular to the piston rod 40, so that the oil-gas mixing cylinder can be conveniently mounted in mechanical equipment such as a breaking hammer, an excavator and the like. The right end of the oil cylinder barrel 10 is fixed with a sealing guide sleeve 80, and the piston rod 40 is movably arranged in the sealing guide sleeve 80 in a penetrating mode. The left end of the cylinder barrel 20 is fixed with a mounting sleeve 90, and a mounting hole 901 is formed in the mounting sleeve 90, so that the oil-gas mixing cylinder can be conveniently mounted in mechanical equipment such as a breaking hammer and an excavator. Therefore, the air-fuel mixing cylinder can be installed through the installation shaft 70 or the installation sleeve 90, and the installation shaft 70 or the installation sleeve 90 is selected from the two.

Further, as shown in fig. 1 or fig. 3, the cylinder piston 50 divides the first inner bore into a first oil chamber 104 and a second oil chamber 105 which are not communicated with each other, the first oil chamber 104 is distributed on the left side of the cylinder piston 50, the second oil chamber 105 is distributed on the right side of the cylinder piston 50, and the first oil chamber 104 and the second oil chamber 105 are connected with the hydraulic system through oil passages, and the connection manner includes the following two manners.

First, as shown in fig. 1, the oil cylinder 10 is provided with a first oil passage 106 communicated with the first oil chamber 104 and a second oil passage 107 communicated with the second oil chamber 105, the first oil passage 106 is distributed on the right side of the isolation sleeve 30, and the isolation sleeve 30 has an oil passage hole-free structure if the hydraulic oil does not pass through the isolation sleeve 30, as shown in fig. 2.

In a second mode, as shown in fig. 3, a plurality of third oil ducts 301 communicated with the first oil chamber 104 are formed in the spacer sleeve 30, a fourth oil duct 108 communicated with the second oil chamber 105 and a fifth oil duct 109 located on the outer peripheral side of the spacer sleeve 30 and communicated with the third oil duct 301 are formed on the oil cylinder 10, the spacer sleeve 30 has an oil duct hole structure, and as shown in fig. 4, the first oil chamber 104 in the oil cylinder 10 is communicated with the fifth oil duct 109 on the cylinder wall through the third oil duct 301 on the spacer sleeve 30.

Further, as shown in fig. 1 or fig. 3, the cylinder piston 60 divides the second inner bore into a negative pressure air chamber 203 and a high pressure air chamber 204 which are not communicated with each other, the negative pressure air chamber 203 is distributed on the right side of the cylinder piston 60, the high pressure air chamber 204 is distributed on the left side of the cylinder piston 60, and the cylinder barrel 20 is provided with a first air valve 205 communicated with the negative pressure air chamber 203 and a second air valve 206 communicated with the high pressure air chamber 204. Preferably, the first gas valve 205 and the second gas valve 206 are both one-way valves, and the gas flow directions of the two valves are opposite.

When hydraulic oil is introduced into the second oil chamber 105 of the oil cylinder barrel 10, the hydraulic oil pushes the oil cylinder piston 50 to the left, and the oil cylinder piston 50 drives the piston rod 40 and the air cylinder piston 60 to move together to the left, thereby compressing the high-pressure gas in the high-pressure air chamber 204 in the air cylinder barrel 20. After the cylinder piston 50, the piston rod 40 and the cylinder piston 60 move leftwards to a set stroke, the second oil chamber 105 of the cylinder barrel 10 is depressurized, and high-pressure gas in the high-pressure air chamber 204 in the cylinder barrel 20 pushes the cylinder piston 60 rightwards, so that the piston rod 40 and the cylinder piston 50 are driven to move rightwards together, and finally the piston rod 40 moves leftwards and rightwards in a reciprocating manner.

Preferably, as shown in fig. 1 or fig. 3, the cylinder piston 50 and the piston rod 40 are fixed in a tight fit manner; the cylinder piston 60 and the piston rod 40 are locked and fixed by a nut 110.

Further, the oil-gas mixing cylinder with the structure is of a modular structure, the oil cylinder barrel 10, the mounting shaft 70 and the sealing guide sleeve 80 which are fixed on the oil cylinder barrel form a first assembly module, the cylinder barrel 20 and the mounting sleeve 90 which is fixed on the cylinder barrel form a second assembly module, the isolation sleeve 30 forms a third assembly module, the piston rod 40, the cylinder piston 50 and the cylinder piston 60 which are fixed mutually form a fourth assembly module, and matching among the assembly modules with different sizes and specifications can be achieved. Such as: a first assembly module can join in marriage the second assembly module and the fourth assembly module of three not equidimension specifications, reaches the purpose that promotes or reduces cylinder part recoil force, and then reduces use cost. Or, the modular design enables the diameters of the cylinder barrel 20 and the cylinder piston 60 to be increased or decreased, and the pressure area can be increased by increasing the diameter of the cylinder piston 60, so that the pressure is increased, the pressurization is easy to realize, nitrogen with the pressure of more than 10MP can be filled, and larger working pressure can be realized; further, the specific pressure difference between the cylinder piston 50 and the cylinder piston 60 can be easily adjusted.

To sum up, the utility model discloses various shortcomings in the prior art have effectively been overcome and high industry value has.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. An oil-gas mixing cylinder is characterized in that: including oil cylinder barrel (10) that is equipped with first hole, the cylinder section of thick bamboo (20) that is equipped with the second hole, spacer sleeve (30), piston rod (40) and all fix oil cylinder piston (50) and cylinder piston (60) on piston rod (40), oil cylinder barrel (10) and cylinder barrel (20) are two mutually independent parts, and fixed mutually, spacer sleeve (30) are fixed in the fixed connection department of oil cylinder barrel (10) and cylinder barrel (20) and the first hole of shutoff and second hole, piston rod (40) are movably worn to establish in first hole, spacer sleeve (30) and the second hole, oil cylinder piston (50) are arranged in first hole and with the section of thick bamboo wall sliding fit of oil cylinder barrel (10), cylinder piston (60) are arranged in the second hole and with the section of thick bamboo wall sliding fit of cylinder barrel (20).

2. The oil-gas mixing cylinder according to claim 1, characterized in that: a first flange part (101) is arranged at the end part of the oil cylinder barrel (10) close to the isolation sleeve (30), a second flange part (201) is arranged at the end part of the air cylinder barrel (20) close to the isolation sleeve (30), and the first flange part (101) and the second flange part (201) are fixedly connected through a plurality of bolts; the inner periphery of the first flange part (101) is provided with a fixing cavity (102) for accommodating the isolating sleeve (30) and a limiting flange (103) abutted against one end of the isolating sleeve (30), the end part of the second flange part (201) is provided with a limiting convex part (202) abutted against the other end of the isolating sleeve (30), and the isolating sleeve (30) is clamped and fixed between the limiting flange (103) and the limiting convex part (202).

3. The air-fuel mixing cylinder as defined in claim 2, wherein: the oil cylinder barrel (10) is fixedly provided with a mounting shaft (70) on the periphery of the first flange part (101), and the mounting shaft (70) is perpendicular to the piston rod (40).

4. The oil-gas mixing cylinder according to claim 1, characterized in that: the oil-gas mixing cylinder is of a modular structure, the oil cylinder barrel (10) forms a first assembly module, the air cylinder barrel (20) forms a second assembly module, the isolation sleeve (30) forms a third assembly module, and the piston rod (40), the oil cylinder piston (50) and the air cylinder piston (60) form a fourth assembly module.

5. The air-fuel mixing cylinder as defined in claim 1, 2 or 4, wherein: the oil cylinder piston (50) divides the first inner hole into a first oil cavity (104) and a second oil cavity (105) which are not communicated with each other, and the oil cylinder barrel (10) is provided with a first oil channel (106) communicated with the first oil cavity (104) and a second oil channel (107) communicated with the second oil cavity (105).

6. The air-fuel mixing cylinder as defined in claim 1, 2 or 4, wherein: the oil cylinder is characterized in that the oil cylinder piston (50) divides the first inner hole into a first oil cavity (104) and a second oil cavity (105) which are not communicated with each other, a plurality of third oil channels (301) which are communicated with the first oil cavity (104) are arranged in the isolation sleeve (30), and the oil cylinder barrel (10) is provided with a fourth oil channel (108) which is communicated with the second oil cavity (105) and a fifth oil channel (109) which is positioned on the outer peripheral side of the isolation sleeve (30) and is communicated with the third oil channel (301).

7. The air-fuel mixing cylinder as defined in claim 1, 2 or 4, wherein: the cylinder piston (60) divides the second inner hole into a negative pressure air cavity (203) and a high pressure air cavity (204) which are not communicated with each other, and a first air valve (205) communicated with the negative pressure air cavity (203) and a second air valve (206) communicated with the high pressure air cavity (204) are arranged on the cylinder barrel (20).

8. The oil-gas mixing cylinder according to claim 7, characterized in that: the first gas valve (205) and the second gas valve (206) are both one-way valves, and the gas flow directions of the two valves are opposite.

9. The oil-gas mixing cylinder according to claim 1, characterized in that: the oil cylinder barrel (10) is fixed with a sealing guide sleeve (80) at one end far away from the isolation sleeve (30), and the piston rod (40) is movably arranged in the sealing guide sleeve (80) in a penetrating mode.

10. The oil-gas mixing cylinder according to claim 1, characterized in that: the cylinder barrel (20) is fixedly provided with a mounting sleeve (90) at one end far away from the isolation sleeve (30), and a mounting hole (901) is formed in the mounting sleeve (90).