CN215830866U - Bulldozing oil cylinder with supercharging function for excavator - Google Patents

Abstract

The utility model discloses a bulldozer cylinder for excavators, which belongs to the technical field of excavator cylinders and has a supercharging function, and comprises a cylinder barrel, an air inlet barrel and an air outlet barrel, wherein the air inlet barrel is fixedly arranged on the left side wall of the cylinder barrel, the air outlet barrel is fixedly arranged on the right side wall of the cylinder barrel, the upper side and the lower side of the front side wall of the cylinder barrel are respectively inserted with an oil outlet pipe and an oil inlet pipe, the left side wall and the right side wall of the cylinder barrel are respectively inserted with an air inlet pipe and an air outlet pipe, the bulldozer cylinder for excavators with the supercharging function has reasonable structural design, achieves the purpose of increasing the hydraulic pressure inside the cylinder barrel by injecting compressed air into the cylinder barrel, thereby improving the transmission efficiency of the hydraulic pressure of the cylinder barrel on a piston rod and a piston body, further improving the pushing speed of the piston rod, and effectively solving the problem of unstable potential energy of liquid flow in the prior art by utilizing pneumatic transmission to replace the existing hydraulic transmission, avoid the piston rod to cause risks such as collision because of insufficient pressure.

Description

Bulldozing oil cylinder with supercharging function for excavator

Technical Field

The utility model relates to the technical field of hydraulic oil cylinders, in particular to a bulldozer oil cylinder with a supercharging function for an excavator.

Background

The cylinder is also called a hydraulic cylinder, and generally refers to a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion or swinging motion, and the excavator mainly performs operation by pushing the swinging and height position of the bucket through the cylinder, so as to perform excavation processing on the ground.

However, the traditional oil cylinder only adopts the pressure generated by the flowing of the internal liquid to linearly push the piston rod, but the hydraulic transmission efficiency is low, the pushing speed of the piston rod is reduced, so that the actual working efficiency of the excavator is seriously affected, and the actual delivery time of the engineering is prolonged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a soil shifting cylinder with a supercharging function for an excavator, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a bulldozing oil cylinder for excavator with pressure boost function, includes cylinder, the barrel of admitting air and goes out the gas cylinder, the barrel fixed mounting of admitting air is in the left side wall of cylinder, it is in to go out gas cylinder fixed mounting the right side wall of cylinder, peg graft respectively in both sides about the preceding lateral wall of cylinder and have an oil pipe and advance oil pipe, peg graft respectively in the left and right sides wall of cylinder has intake pipe and outlet duct, the top fixedly connected with cylinder cap of cylinder, the inside of cylinder cap slides and is connected with the piston rod, just the bottom of piston rod runs through and extends to the inner chamber of cylinder, the bottom fixedly connected with piston body of piston rod, just piston body slides and connects the inner chamber of cylinder, it has first gas injection pipe to peg graft at the top of the barrel of admitting air, the inner chamber of the barrel of admitting air slides and is connected with first sealed slider, the upper and lower both sides of the inner chamber of the barrel of admitting air pass through first sealed slider is cut apart into first chamber of admitting air and first chamber of giving vent to anger The right side wall of the air inlet cylinder is spliced with a first communicating pipe, the input end of the first communicating pipe is communicated with the first air outlet cavity, the output end of the first communicating pipe is communicated with the air inlet pipe, the bottom of the air outlet cylinder is spliced with a second air injection pipe, the inner cavity of the air outlet cylinder is connected with a second sealing slider in a sliding mode, the upper side and the lower side of the inner cavity of the air outlet cylinder are divided into a second air outlet cavity and a second air inlet cavity by the second sealing slider, the left side wall of the air outlet cylinder is spliced with a second communicating pipe, the input end of the second communicating pipe is communicated with the second air outlet cavity, and the output end of the second communicating pipe is communicated with the air outlet pipe.

Preferably, the upper side and the lower side of the inner cavity of the cylinder barrel are divided into a low-pressure cavity and a high-pressure cavity through the piston body, the low-pressure cavity is communicated with the oil outlet pipe, and the high-pressure cavity is communicated with the oil inlet pipe.

Preferably, the outer side walls of the air inlet cylinder and the air outlet cylinder are respectively sleeved with a first support and a second support, and the first support and the second support are fixedly connected to the left side wall and the right side wall of the cylinder barrel through bolts.

Preferably, the oil outlet pipe, the oil inlet pipe, the air outlet pipe, the first air injection pipe and the second air injection pipe are connected with the electromagnetic valve in a sleeved mode.

Preferably, a groove is formed in the periphery of the top of the cylinder cover, a dustproof ring is bonded inside the groove, and the inner side wall of the dustproof ring is attached to the outer side wall of the piston rod.

Preferably, the inner chamber of cylinder cap just is located the below of dust ring is provided with the sealing washer, the inner chamber of cylinder cap just is located the below of sealing washer is provided with the cushion ring, just the cushion ring with the sealing washer all cup joints the lateral wall of piston rod.

Preferably, the top of the piston body is provided with a buffer sleeve in the inner cavity of the cylinder barrel, and the buffer sleeve is sleeved at the bottom of the outer side wall of the piston rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. this bulldozing cylinder for excavator with pressure boost function, left side through at the cylinder sets up the intake pipe, and the input at the intake pipe sets up the barrel that admits air, utilize the input of outside gas, make the interior first sealed slider of the barrel that admits air carry out linear motion, thereby compress the processing to the gas in the barrel that admits air, and inject compressed gas into the high-pressure chamber in the cylinder through the intake pipe, make it reach the purpose that increases the inside hydraulic pressure size of cylinder, thereby the transmission efficiency of its hydraulic pressure to piston rod and piston body has been improved, and then the promotion speed of piston rod has been improved, the actual work efficiency of excavator has been strengthened, make the actual completion time of engineering obtain effective the reduction.

2. The soil shifting cylinder with the supercharging function for the excavator is characterized in that the air outlet pipe is arranged on the right side of the cylinder barrel, the air outlet barrel is arranged at the input end of the air outlet pipe, when liquid in the cylinder barrel is discharged, the piston rod loses the supporting force of the bottom, at the moment, the air input to the air inlet barrel is stopped, the air input to the air outlet barrel is opened, the air compressed inside the air outlet barrel is injected into the low-pressure cavity in the cylinder barrel through the air outlet pipe by the air outlet barrel, the air pressure value in the cylinder barrel is maintained in a stable range, because the high-pressure cavity and the air inlet barrel are communicated with each other, when the piston body moves downwards, the air pressure in the high-pressure cavity is slowly discharged into the air inlet barrel, the existing hydraulic transmission is replaced by the air pressure transmission, the problem that the potential energy of liquid flowing in the prior art is unstable is effectively solved, and the risks such as collision caused by insufficient pressure of the piston rod are avoided, greatly prolonging the practical service life of the device.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic view of the internal structure of the cylinder barrel of the present invention;

FIG. 4 is a schematic view of the internal structure of the air intake cylinder of the present invention;

fig. 5 is a schematic view of the internal structure of the air outlet cylinder body of the present invention.

In the figure: 100. a cylinder barrel; 110. an oil outlet pipe; 120. an oil inlet pipe; 130. an air inlet pipe; 140. an air outlet pipe; 150. a cylinder cover; 151. a groove; 152. a dust ring; 153. a seal ring; 154. a buffer ring; 160. a piston rod; 170. a piston body; 171. a buffer sleeve; 180. a low pressure chamber; 190. a high pressure chamber; 200. an air inlet cylinder; 210. a first bracket; 220. a first gas injection tube; 230. a first sealing slider; 240. a first air intake chamber; 250. a first air outlet cavity; 260. a first communication pipe; 300. an air outlet cylinder body; 310. a second bracket; 320. a second gas injection tube; 330. a second sealing slide block; 340. a second air intake chamber; 350. a second air outlet cavity; 360. and a second communication pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a bulldozer cylinder with a supercharging function for an excavator, which improves the transmission efficiency of hydraulic pressure of the bulldozer cylinder to a piston rod 160 and a piston body 170, and effectively solves the problem of unstable potential energy of liquid flow in the prior art, and please refer to fig. 1-5, wherein the bulldozer cylinder comprises a cylinder barrel 100, an air inlet barrel 200 and an air outlet barrel 300;

referring to fig. 1-5 again, the oil outlet pipe 110 and the oil inlet pipe 120 are respectively inserted into the upper side wall and the lower side wall of the front side wall of the cylinder barrel 100, the air inlet pipe 130 and the air outlet pipe 140 are respectively inserted into the left side wall and the right side wall of the cylinder barrel 100, the top of the cylinder barrel 100 is fixedly connected with the cylinder cover 150, the cylinder cover 150 is connected with the piston rod 160 in a sliding manner, the bottom of the piston rod 160 penetrates through and extends to the inner cavity of the cylinder barrel 100, the bottom of the piston rod 160 is fixedly connected with the piston body 170, the piston body 170 is connected with the inner cavity of the cylinder barrel 100 in a sliding manner, the cylinder barrel 100 is used for mounting and fixing the piston rod 160 and the piston body 170, the oil outlet pipe 110 and the oil inlet pipe 120 are used for connecting the input end and the output end of the external liquid, the cylinder cover 150 is used for sealing the top of the cylinder barrel 100 to form a sealed space, the piston rod 160 is used for connecting and fixing the connection end of the external device and driving the connection end of the external device to make a linear motion, the piston body 170 is used for supporting the bottom of the piston rod 160 and driving the piston rod 160 to move linearly in the cylinder 100;

referring to fig. 1 to 5 again, a first gas injection pipe 220 is inserted into the top of the gas inlet cylinder 200, the inner cavity of the gas inlet cylinder 200 is connected with a first sealing slider 230 in a sliding manner, the upper and lower sides of the inner cavity of the gas inlet cylinder 200 are divided into a first gas inlet cavity 240 and a first gas outlet cavity 250 by the first sealing slider 230, a first communication pipe 260 is inserted into the right side wall of the gas inlet cylinder 200, the input end of the first communication pipe 260 is communicated with the first gas outlet cavity 250, the output end of the first communication pipe 260 is communicated with the gas inlet pipe 130, the gas inlet cylinder 200 is fixedly mounted on the left side wall of the cylinder 100, specifically, the gas inlet cylinder 200 is fixedly connected to the left side wall of the cylinder 100 through the gas inlet cylinder 200, the gas inlet cylinder 200 is used for sucking external gas and adjusting the pressure value in the high pressure cavity 190, the first gas injection pipe 220 is used for connecting the gas inlet cylinder 200 with an external gas pump, the first sealing slider 230 is used for controlling the exhaust of gas in the gas inlet cylinder 200, the first gas inlet cavity 240 and the first gas outlet cavity 250 are used for storing input gas, and the first communication pipe 260 is used for outputting gas in the gas inlet cylinder 200 and is connected with the gas inlet pipe 130;

referring to fig. 1-5 again, the bottom of the air outlet cylinder 300 is inserted with a second air injection pipe 320, the inner cavity of the air outlet cylinder 300 is connected with a second sealing slider 330 in a sliding manner, the upper and lower sides of the inner cavity of the air outlet cylinder 300 are divided into a second air outlet cavity 350 and a second air inlet cavity 340 by the second sealing slider 330, the left side wall of the air outlet cylinder 300 is inserted with a second communicating pipe 360, the input end of the second communicating pipe 360 is communicated with the second air outlet cavity 350, the output end of the second communicating pipe 360 is communicated with the air outlet pipe 140, the air outlet cylinder 300 is fixedly mounted on the right side wall of the cylinder 100, specifically, the air outlet cylinder 300 is fixedly connected to the left and right side walls of the cylinder 100 by a second bracket 310, the air outlet cylinder 300 is used for sucking external air and controlling the pressure value in the low pressure cavity 180, the second air injection pipe 320 is used for connecting the air outlet cylinder 300 with an external air pump, the second sealing slider 330 is used for controlling the discharge of the gas in the gas outlet barrel 300, the second gas outlet cavity 350 and the second gas inlet cavity 340 are used for storing the input gas, and the second communicating pipe 360 is used for outputting the gas in the gas outlet barrel 300 and is connected with the gas outlet pipe 140.

Referring to fig. 3 again, in order to store the externally injected liquid and adjust the pressures of the upper and lower sides of the piston body 170, the upper and lower sides of the inner cavity of the cylinder 100 are divided into a low pressure chamber 180 and a high pressure chamber 190 by the piston body 170, the low pressure chamber 180 is communicated with the oil outlet pipe 110, and the high pressure chamber 190 is communicated with the oil inlet pipe 120.

Referring to fig. 1-2 again, in order to mount the air inlet cylinder 200, the air outlet cylinder 300 and the cylinder 100 and facilitate the later-stage disassembly and assembly of the air inlet cylinder 200 and the air outlet cylinder 300, the outer side walls of the air inlet cylinder 200 and the air outlet cylinder 300 are respectively sleeved with a first bracket 210 and a second bracket 310, and the first bracket 210 and the second bracket 310 are fixedly connected to the left side wall and the right side wall of the cylinder 100 through bolts.

Referring to fig. 1-2 and fig. 3-4 again, in order to control the fluidity of the medium transportation inside the oil outlet pipe 110, the oil inlet pipe 120, the air inlet pipe 130, the air outlet pipe 140, the first air injection pipe 220 and the second air injection pipe 320 in real time and optimize the working efficiency, the connection ends of the oil outlet pipe 110, the oil inlet pipe 120, the air inlet pipe 130, the air outlet pipe 140, the first air injection pipe 220 and the second air injection pipe 320 are all sleeved with electromagnetic valves.

Referring to fig. 3 again, in order to prevent dust in the air from falling into the cylinder 100 and effectively prevent the liquid in the cylinder 100 from being influenced by the flowability, a groove 151 is formed around the top of the cylinder cover 150, a dust ring 152 is bonded inside the groove 151, and the inner side wall of the dust ring 152 is attached to the outer side wall of the piston rod 160.

Referring to fig. 3 again, in order to further improve the sealing effect of the cylinder cover 150 and reduce the impact force on the cylinder cover 150 caused by the piston rod 160 moving linearly, a sealing ring 153 is disposed in the inner cavity of the cylinder cover 150 and below the dust ring 152, a buffer ring 154 is disposed in the inner cavity of the cylinder cover 150 and below the sealing ring 153, and the buffer ring 154 and the sealing ring 153 are both sleeved on the outer side wall of the piston rod 160.

Referring to fig. 3 again, in order to reduce the impact force generated when the piston rod 160 slides in the cylinder 100, a buffer sleeve 171 is disposed at the top of the piston body 170 and in the inner cavity of the cylinder 100, and the buffer sleeve 171 is sleeved at the bottom of the outer sidewall of the piston rod 160.

When the excavator is used in construction, external liquid is injected into the high pressure cavity 190 in the cylinder 100 through the oil inlet pipe 120 by opening the electromagnetic valve of the oil inlet pipe 120, the piston body 170 is driven to push upwards along with the continuous injection of the liquid, and simultaneously, the electromagnetic valve of the first gas injection pipe 220 is opened to inject external gas into the gas inlet cylinder 200 while the liquid is injected, so that the first sealing slide block 230 in the gas inlet cylinder 200 moves downwards in the gas inlet cylinder 200, and the gas pressure in the first gas outlet cavity 250 is continuously compressed, opening the electromagnetic valve of the air inlet pipe 130 to inject the air pressure in the air inlet cylinder 200 into the high pressure cavity 190 through the air inlet pipe 130, thereby increasing the liquid pressure of the cylinder 100 and further achieving the effect of rapidly pushing the piston rod 160, when the excavator stops the construction, closing the electromagnetic valve of the oil inlet pipe 120 and opening the electromagnetic valve of the oil outlet pipe 110 to discharge the liquid in the cylinder 100 through the oil outlet pipe 110, simultaneously opening the electromagnetic valve of the second air injection pipe 320 to inject the external air and drive the second air injection pipe 320 to be slowly pushed upwards to compress the air pressure in the second air outlet cavity 350, at this time opening the electromagnetic valve of the air outlet pipe 140 to inject the air pressure in the air outlet cylinder 300 into the low pressure cavity 180, thereby stabilizing the air pressure value in the cylinder 100, and closing the electromagnetic valve of the first air injection pipe 220 to slowly make the pressure value of the low pressure cavity 180 greater than the pressure value of the high pressure cavity 190, so that the piston body 170 slowly moves downwards until reaching the lowest part of the cylinder 100, and as the closed air chamber is formed in the air inlet cylinder 200, the air pressure exhausted from the high pressure chamber 190 is collected as the first sealing slide 230 moves upwards, thereby ensuring that the reserved air pressure is provided for the sliding of the piston body 170 in the next use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

While the utility model has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (7)

1. The utility model provides a bulldozing oil cylinder for excavator with pressure boost function which characterized in that: the oil cylinder comprises a cylinder barrel (100), an air inlet barrel (200) and an air outlet barrel (300), wherein the air inlet barrel (200) is fixedly arranged on the left side wall of the cylinder barrel (100), the air outlet barrel (300) is fixedly arranged on the right side wall of the cylinder barrel (100), and an oil outlet pipe (110) and an oil inlet pipe (120) are respectively inserted into the upper side and the lower side of the front side wall of the cylinder barrel (100);

the air inlet pipe (130) and the air outlet pipe (140) are respectively inserted into the left side wall and the right side wall of the cylinder barrel (100), the top of the cylinder barrel (100) is fixedly connected with a cylinder cover (150), the inside of the cylinder cover (150) is connected with a piston rod (160) in a sliding manner, the bottom of the piston rod (160) penetrates through and extends to the inner cavity of the cylinder barrel (100), the bottom of the piston rod (160) is fixedly connected with a piston body (170), the piston body (170) is connected with the inner cavity of the cylinder barrel (100) in a sliding manner, the top of the air inlet barrel (200) is inserted with a first air injection pipe (220), the inner cavity of the air inlet barrel (200) is connected with a first sealing slide block (230) in a sliding manner, the upper side and the lower side of the inner cavity of the air inlet barrel (200) are divided into a first air inlet cavity (240) and a first air outlet cavity (250) through the first sealing slide block (230), and the right side wall of the air inlet barrel (200) is inserted with a first communication pipe (260), the input end of the first communicating pipe (260) is communicated with the first gas outlet cavity (250), the output end of the first communicating pipe (260) is communicated with the gas inlet pipe (130), the bottom of the gas outlet cylinder (300) is spliced with a second gas injection pipe (320), the inner cavity of the gas outlet cylinder (300) is connected with a second sealing slider (330) in a sliding mode, the upper side and the lower side of the inner cavity of the gas outlet cylinder (300) are divided into a second gas outlet cavity (350) and a second gas inlet cavity (340) through the second sealing slider (330), the left side wall of the gas outlet cylinder (300) is spliced with a second communicating pipe (360), the input end of the second communicating pipe (360) is communicated with the second gas outlet cavity (350), and the output end of the second communicating pipe (360) is communicated with the gas outlet pipe (140).

2. The dozer cylinder for the excavator with the supercharging function according to claim 1, characterized in that: the upper side and the lower side of the inner cavity of the cylinder barrel (100) are divided into a low-pressure cavity (180) and a high-pressure cavity (190) through the piston body (170), the low-pressure cavity (180) is communicated with the oil outlet pipe (110), and the high-pressure cavity (190) is communicated with the oil inlet pipe (120).

3. The dozer cylinder for the excavator with the supercharging function according to claim 1, characterized in that: the outer side walls of the air inlet cylinder body (200) and the air outlet cylinder body (300) are respectively sleeved with a first support (210) and a second support (310), and the first support (210) and the second support (310) are fixedly connected to the left side wall and the right side wall of the cylinder barrel (100) through bolts.

4. The dozer cylinder for the excavator with the supercharging function according to claim 1, characterized in that: the connecting ends of the oil outlet pipe (110), the oil inlet pipe (120), the air inlet pipe (130), the air outlet pipe (140), the first air injection pipe (220) and the second air injection pipe (320) are all sleeved with electromagnetic valves.

5. The dozer cylinder for the excavator with the supercharging function according to claim 1, characterized in that: recess (151) are seted up to the top a week of cylinder cap (150), the inside bonding of recess (151) has dust ring (152), just the inside wall of dust ring (152) with the outside wall of piston rod (160) is laminated mutually.

6. The dozer cylinder for the excavator with the supercharging function according to claim 5, characterized in that: the inner chamber of cylinder cap (150) just is located the below of dust ring (152) is provided with sealing washer (153), the inner chamber of cylinder cap (150) just is located the below of sealing washer (153) is provided with buffer ring (154), just buffer ring (154) with sealing washer (153) all cup joints the lateral wall of piston rod (160).

7. The dozer cylinder for the excavator with the supercharging function according to claim 1, characterized in that: the top of the piston body (170) and the inner cavity of the cylinder barrel (100) are provided with a buffer sleeve (171), and the buffer sleeve (171) is sleeved at the bottom of the outer side wall of the piston rod (160).

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