CN216077801U

CN216077801U - Improved electro-hydraulic actuator

Info

Publication number: CN216077801U
Application number: CN202122461502.2U
Authority: CN
Inventors: 徐敏武; 金露平
Original assignee: Ningbo Youlian Intelligent Technology Co ltd
Current assignee: Ningbo Youlian Intelligent Technology Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-03-18
Anticipated expiration: 2031-10-13

Abstract

Improved generation electricity liquid executor belongs to executor technical field, including pneumatic cylinder, oil pump portion and motor part, the pneumatic cylinder passes through oil pump portion drive, the motor drive of assembly in the motor part is passed through to the oil pump portion. The hydraulic cylinder is assembled on one side of a bus bar seat, and an oil pump part, a manual operation part, a motor part and a remote transmission part are sequentially assembled on the bus bar seat. Compared with the prior art, this application can freely switch over electronic and manual mode, is convenient for deal with the electric mechanism trouble, and possesses equipment detection and data teletransmission function, lets the staff can pass through data terminal monitoring facilities operation conditions, is convenient for in time discover the trouble, maintains immediately.

Description

Improved electro-hydraulic actuator

Technical Field

The utility model belongs to the technical field of actuators, and particularly relates to an improved electro-hydraulic actuator.

Background

The actuator is an industrial automation instrument and generally comprises an actuating mechanism, an adjusting mechanism and an accessory. The actuator can be divided into electric, pneumatic, hydraulic, electric composite and electro-hydraulic composite according to different working energy sources; the input signal can be classified into an analog quantity type and a digital quantity type.

The output force of the electro-hydraulic actuator can reach twenty-two million newtons, the displacement can reach 200 mm, and compared with the traditional pneumatic type and electric type, the electro-hydraulic actuator has the characteristics of large stroke, large thrust or moment, high intelligent degree, quick response time, high sensitivity, compact mechanism, fire prevention and the like. The existing electro-hydraulic actuator is designed to be fully automatic for reducing the volume, or a manual operating mechanism and an electric mechanism are integrally designed, and when the electric mechanism breaks down in the working process, the manual operating mechanism cannot be used.

In addition, the existing electro-hydraulic actuator has no functions of equipment detection and data remote transmission, and when the electro-hydraulic actuator breaks down, a worker cannot find and solve the problem in time.

Accordingly, the present application provides further design and improvement over conventional electro-hydraulic actuators based on some of the above prior art.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides an improved electro-hydraulic actuator which can freely switch an electric mode and a manual mode, is convenient for dealing with the faults of an electric mechanism, has the functions of equipment detection and data remote transmission, enables a worker to monitor the running condition of equipment through a data terminal, and is convenient for finding the faults in time and immediately maintaining the equipment.

In order to solve the above technical problems, the present invention is solved by the following technical solutions.

Improved generation electricity liquid executor, including pneumatic cylinder, oil pump portion and motor part, the pneumatic cylinder passes through oil pump portion drive, the motor drive of assembly in the motor part is passed through to the oil pump portion. The hydraulic cylinder is assembled on one side of a bus bar seat, and an oil pump part, a manual operation part, a motor part and a remote transmission part are sequentially assembled on the bus bar seat. The manual operation portion comprises a first bevel gear and a second bevel gear, the first bevel gear is assembled on an output shaft of the motor, an operation assembly is arranged on the second bevel gear, the operation assembly penetrates through the side wall of the manual operation portion and is used for manual operation, and manual operation can be conducted when the motor fails. Be equipped with the teletransmission module in the teletransmission portion, can be with data teletransmission to terminal, be favorable to monitoring the operation conditions of device.

In a preferred embodiment, the operating assembly comprises a connecting shaft and an outer sleeve shaft, the connecting shaft and the second bevel gear are fixedly connected, and a knob is arranged at the end of the outer sleeve shaft. The connecting shaft is externally provided with a moving sleeve, the moving sleeve is provided with a sliding groove, the outer sleeve shaft is provided with a sliding protrusion corresponding to the sliding groove, and the sliding groove and the sliding protrusion are matched to realize the movement of the second bevel gear. The end part of the connecting shaft extends into the outer sleeve shaft, and an operating spring is connected between the end part of the connecting shaft and the bottom of the outer sleeve shaft, so that the reset of the second bevel gear is realized.

In a preferred embodiment, the piston rod end of the hydraulic cylinder is fitted with an impact piston and a positioning piston in this order. An impact assembly and a spill assembly are fitted into the impact piston. The impact assembly is favorable for offsetting impact force on the piston caused by the extension of the piston rod, the service life of the device is prolonged, and the overflow assembly is favorable for stabilizing hydraulic pressure inside the hydraulic cylinder.

In a preferred embodiment, the hydraulic cylinder and the confluence seat are provided with a first flow channel and a second flow channel, the inlet of the first flow channel is arranged at the lower part of the cylinder body, the inlet of the second flow channel is arranged at the upper part of the cylinder body, and the flow channels of the two cavities of the hydraulic cylinder are integrally designed, so that the volume of the device is greatly reduced.

In a preferred embodiment, a manual release valve is assembled on one side of the confluence seat, and the manual release valve extends into the first flow passage in the confluence seat, so that the hydraulic oil in the device can be conveniently replaced.

In a preferred embodiment, the first flow channel and the second flow channel are connected by a connecting channel. One side of the first runner is provided with a first sub-runner, the tail end of the first sub-runner is provided with a plug, and a plunger of a limiting valve is arranged in the first sub-runner, so that the stability of the pressure in the runner can be ensured. And a second sub-flow passage is arranged on one side of the second flow passage, and the tail end of the second sub-flow passage is provided with a plug, so that the pressure stabilization is facilitated. The base bottom that converges is equipped with the mounting groove, the mounting groove stretches into first runner for install the filter, the filter is located and is favorable to guaranteeing the filter effect in the runner, and makes things convenient for the change in later stage.

In a preferred embodiment, oil pump portion includes the pump body and shell, the pump body assembly is in the shell, form the oil storage chamber between shell and the pump body, be equipped with on the shell and add the oil cap, make things convenient for the change of later stage hydraulic oil.

In a preferred embodiment, the pump body is a gear pump, and a first oil suction and discharge passage and a second oil suction and discharge passage are arranged on two sides of a gear pair of the pump body. The lower part of the pump body is provided with a first non-return plug screw and a second non-return plug screw, and the first non-return plug screw is communicated with the first oil suction and discharge channel and the first shunt channel. The second check screw plug is communicated with the second suction and discharge oil duct and the second branch flow passage, so that the hydraulic oil can be prevented from flowing back, and the stability of the pressure in the device when the piston rod of the hydraulic cylinder is in an extending state is ensured.

In a preferred embodiment, the ends of the first suction oil channel and the second suction oil channel are provided with plugs to prevent the pressure in the body from being too high or too low.

In a preferred embodiment, the upper part of the motor part is provided with a sensor, and the sensor is connected with the remote transmission module, so that the operation condition of the actuator device can be monitored remotely, and the accident condition can be found timely.

Compared with the prior art, the method has the following beneficial effects: the utility model provides an improved generation electricity liquid executor, can freely switch over electronic and manual mode, the handling of being convenient for electric mechanism trouble, and possess equipment detection and data teletransmission function, let the staff can be through data terminal monitoring facilities operation conditions, be convenient for in time discover the trouble, maintain immediately.

Drawings

Fig. 1 is a perspective view of the present application.

Fig. 2 is a plan sectional view of the present application.

Fig. 3 is a sectional view at the hydraulic cylinder B.

Fig. 4 is an exploded view of the impact piston and the positioning piston.

FIG. 5 is a schematic view of the impingement assembly and the overflow assembly engaged.

Fig. 6 is a front and back perspective view of the manifold block.

Fig. 7 is a plan sectional view of the bus bar holder.

Fig. 8 is an exploded schematic view of the oil pump section.

Figure 9 is an exploded schematic view of the pump body.

Fig. 10 is a sectional view showing a partial structure of the pump body.

Fig. 11 is a schematic view of the internal structure of the manual operation section, the motor section, and the remote transmission section.

Fig. 12 is a schematic structural view of an operating assembly.

The labels in the figure are: 1-a hydraulic cylinder; 11-a piston rod; 12-an impact piston; 121-impingement holes; 122-overflow holes; 13-an impact assembly; 131-impact push rod; 132-an impact spring; 133-impacting the steel ball; 134-impact pad; 14-an overflow assembly; 141-bayonet lock; 142-an overflow spring; 143-overflow copper sleeve; 144-overflow steel balls; 15-positioning the piston; 16-end cap.

2-a manifold base; 21-a first flow channel; 211-a first subchannel; 212-limit valve plunger; 22-a second flow channel; 221-a second shunt; 23-a manual bleed valve; 24-connecting channel; 25-plug; 26-mounting grooves; 27-filter.

3-an oil pump section; 31-a pump body; 311-gear pair; 312-first suction oil drain; 313-a first check plug; 314-a second suction and exhaust oil passage; 315-second non-return plug screw; 32-a housing; 321-a fuel filler cap; 322-ground line; 33-oil reservoir.

4-a manual operation part; 41-a first bevel gear; 42-a second bevel gear; 43-an operating component; 431-a connecting shaft; 432-a mobile sleeve; 433-a sliding groove; 434-outer sleeve shaft; 435-sliding projection; 436-operating the spring; 437-knob.

5-a motor section; 51-motor output shaft; 52-a sensor; 53-motor.

6-a remote transmission part; 61-remote transmission module.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The embodiments described below by referring to the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout, are exemplary only for explaining the present invention, and are not construed as limiting the present invention.

In describing the present invention, it is to be understood that the terms: the terms center, longitudinal, lateral, length, width, thickness, up, down, front, back, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, and thus, should not be construed as limiting the present invention. Furthermore, the terms: first, second, etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features shown. In describing the present invention, unless otherwise expressly specified or limited, the terms: mounting, connecting, etc. should be understood broadly, and those skilled in the art will understand the specific meaning of the terms in this application as they pertain to the particular situation.

Referring to fig. 1 to 12, the improved electro-hydraulic actuator of the present application includes a hydraulic cylinder 1, an oil pump unit 3, and a motor unit 5, wherein the hydraulic cylinder 1 is driven by the oil pump unit 3, and the oil pump unit 3 is driven by a motor 53 mounted in the motor unit 5. The hydraulic cylinder 1 is assembled on one side of a bus bar seat 2, and an oil pump part 3, a manual operation part 4, a motor part 5 and a remote transmission part 6 are assembled on the bus bar seat 2 in sequence.

The end of the piston rod 11 of the hydraulic cylinder 1 is fitted with an impact piston 12 and a positioning piston 15 in that order. The impact piston 12 is provided with evenly distributed impact holes 121, and the impact holes 121 are internally provided with impact assemblies 13. The impact assembly 13 comprises an impact push rod 131, an impact spring 132, an impact steel ball 133 and an impact gasket 134, wherein the impact push rod 131 provides thrust through the impact spring 132 which is fixedly assembled, and the impact steel ball 133 is abutted against the pore on the upper surface of the impact hole 121. The impact assembly 13 is fitted over the impact pad 134 and the end of the piston rod 11 abuts against the impact pad 134. The impact assembly 13 arranged in the impact piston 12 is beneficial to offsetting impact force on the piston caused by the expansion and contraction of the piston rod 11, and is beneficial to prolonging the service life of the device. The impact piston 12 is further provided with an overflow hole 122, an overflow assembly 14 is assembled in the overflow hole 122, the overflow assembly 14 comprises a bayonet pin 141, an overflow spring 142, an overflow copper sleeve 143 and overflow steel balls 144, and the overflow spring 142 is arranged between the bayonet pin 141 and the overflow copper sleeve 143 to provide thrust for the overflow copper sleeve 143 to abut against the overflow steel balls 144, which is beneficial to stabilizing the hydraulic pressure in the hydraulic cylinder 1. The hydraulic cylinder 1 is sealed by an end cover 16.

The hydraulic cylinder 1 and the confluence seat 2 are provided with a first flow channel 21 and a second flow channel 22, the inlet of the first flow channel 21 is arranged at the lower part of the cylinder body, the inlet of the second flow channel 22 is arranged at the upper part of the cylinder body, and the flow channels of the two cavities of the hydraulic cylinder 1 are integrally designed, so that the size of the device is greatly reduced. The manual relief valve 23 is assembled on one side of the confluence seat 2, and the manual relief valve 23 extends into the first flow channel 21 in the confluence seat 2, so that the replacement of hydraulic oil in the device is facilitated. The first flow passage 21 and the second flow passage 22 are connected by a connecting passage 24. One side of the first flow passage 21 is provided with a first sub flow passage 211, the end of the first sub flow passage 211 is provided with a plug 25, and a plunger 212 of a limiting valve is arranged in the first sub flow passage 211, so that the pressure in the flow passage can be ensured to be stable. One side of the second flow channel 22 is provided with a second sub-flow channel 221, and the tail end of the second sub-flow channel 221 is provided with a plug 25, so that pressure stabilization is facilitated. The base 2 bottom that converges is equipped with mounting groove 26, mounting groove 26 stretches into first runner 21 for installation filter 27, filter 27 are arranged in the runner and are favorable to guaranteeing the filter effect, and make things convenient for the change in later stage.

The oil pump portion 3 includes the pump body 31 and shell 32, the pump body 31 assembles in the shell 32, form oil storage chamber 33 between shell 32 and the pump body 31, be equipped with on the shell 32 and add oil cap 321, make things convenient for the change of later stage hydraulic oil. The casing 32 is also provided with a grounding wire 322 for ensuring personal safety. The pump body 31 is a gear pump, and a first oil suction and discharge passage 312 and a second oil suction and discharge passage 314 are disposed on two sides of a gear pair 311 of the pump body 31. The lower part of the pump body 31 is provided with a first check screw plug 313 and a second check screw plug 315, and the first check screw plug 313 is communicated with the first oil suction and discharge channel 312 and the first branched channel 211. The second check screw plug 315 is communicated with the second suction/discharge oil passage 314 and the second branch flow passage 221, so that the hydraulic oil can be prevented from flowing back, and the stability of the pressure in the device when the piston rod 11 of the hydraulic cylinder 1 is in the extended state can be ensured. The ends of the first suction/discharge passage 312 and the second suction/discharge passage 314 are fitted with plugs 25 to prevent the pressure in the body from being excessively high or low.

The manual operation part 4 comprises a first bevel gear 41 and a second bevel gear 42, the first bevel gear 41 is assembled on the motor output shaft 51, the second bevel gear 42 is provided with an operation component 43, the operation component 43 penetrates through the side wall of the manual operation part 4 for manual operation, and manual operation can be performed when the motor 53 fails.

Specifically, the operating assembly 43 comprises a connecting shaft 431 and an outer sleeve shaft 434, the connecting shaft 431 and the second bevel gear 42 are fixedly connected, and a knob 437 is arranged at the end of the outer sleeve shaft 434. A moving sleeve 432 is arranged outside the connecting shaft 431, a smooth concave sliding groove 433 is arranged on the moving sleeve 432, a sliding protrusion 435 is arranged on the outer sleeve shaft 434 corresponding to the sliding groove 433, and the sliding groove 433 is matched with the sliding protrusion 435 to realize the movement of the second bevel gear 42. The end of the connecting shaft 431 extends into the outer sleeve 434, and an operating spring 436 is connected between the end of the connecting shaft 431 and the bottom of the outer sleeve 434 to reset the second bevel gear 42.

Be equipped with teletransmission module 61 in teletransmission portion 6, can be with data teletransmission to terminal, be favorable to monitoring the operating condition of device. The sensor 52 is assembled on the upper part of the motor part 5, and the sensor 52 is connected with the remote transmission module 61, so that the operation condition of the actuator device can be monitored remotely, and the accident condition can be found timely.

The working principle of the application is as follows: the motor part 5 drives the gear pair 311 in the oil pump part 3 to rotate, hydraulic oil is pressed into the first oil suction and discharge channel 312, the hydraulic oil passes through the first check plug 313, flows through the first sub-channel 211 and the first channel 21, enters the lower part of the hydraulic cylinder 1, and the piston ejects the piston rod 11. During this time, the hydraulic oil circulates inside the device due to the presence of the connecting channel 24. When the piston rod 11 needs to be retracted, the rotation direction of the motor 53 is reversed, the hydraulic oil circulating liquid turns over along with the motor, the hydraulic oil on the upper portion of the hydraulic cylinder 1 presses down the piston rod 11, and the piston rod 11 retracts. During the operation of the device, the sensor 52 measures and senses the rotating speed of the motor shaft, data are transmitted to the remote transmission module 61, the remote transmission module 61 remotely transmits the data to a data terminal of a worker, and the worker can judge whether the device normally operates according to the data.

When the device is operating normally, the second bevel gear 42 and the first bevel gear 41 are disengaged. When the motor 53 fails, the knob 437 of the manual operation section 4 is rotated, the sliding projection 435 of the outer sleeve 434 is rotated to one side, the connecting shaft 431 is lifted up by the engagement with the sliding groove 433, and the second bevel gear 42 connected to the connecting shaft 431 is engaged with the first bevel gear 41. The knob 437 is rotated continuously, the sliding protrusion 435 abuts against the edge of the sliding groove 433 and cannot slide any more, at this time, the connecting shaft 431 rotates together with the outer sleeve shaft 434, the second bevel gear 42 drives the first bevel gear 41 to rotate, and further drives the motor output shaft 51 to rotate, and the oil pump starts to work normally. When the manual operation is not required, the knob 437 is loosened, the connecting shaft 431 is returned by the operation spring 436, and the second bevel gear 42 and the first bevel gear 41 are disengaged.

Compared with the prior art, this application can freely switch over electronic and manual mode, is convenient for deal with the electric mechanism trouble, and possesses equipment detection and data teletransmission function, lets the staff can pass through data terminal monitoring facilities operation conditions, is convenient for in time discover the trouble, maintains immediately.

The scope of the present invention includes, but is not limited to, the above embodiments, and the present invention is defined by the appended claims, and any alterations, modifications, and improvements that may occur to those skilled in the art are all within the scope of the present invention.

Claims

1. The improved electro-hydraulic actuator comprises a hydraulic cylinder (1), an oil pump part (3) and a motor part (5), and is characterized in that,

the hydraulic cylinder (1) is assembled on one side of the confluence seat (2), and the confluence seat (2) is sequentially assembled with an oil pump part (3), a manual operation part (4), a motor part (5) and a remote transmission part (6);

the manual operation part (4) comprises a first bevel gear (41) and a second bevel gear (42), the first bevel gear (41) is assembled on the output shaft (51) of the motor, an operation component (43) is arranged on the second bevel gear (42), and the operation component (43) penetrates through the side wall of the manual operation part (4) for manual operation.

2. The improved electro-hydraulic actuator according to claim 1, characterized in that the operating assembly (43) comprises a connecting shaft (431) and an outer sleeve shaft (434), the connecting shaft (431) and the second bevel gear (42) are fixedly connected, and a knob (437) is arranged at the end of the outer sleeve shaft (434); a moving sleeve (432) is arranged outside the connecting shaft (431), a sliding groove (433) is formed in the moving sleeve (432), and a sliding protrusion (435) is arranged on the outer sleeve shaft (434) corresponding to the sliding groove (433); the end part of the connecting shaft (431) extends into the outer sleeve shaft (434), and an operating spring (436) is connected between the end part of the connecting shaft (431) and the bottom of the outer sleeve shaft (434).

3. The improved electrohydraulic actuator according to claim 1, characterized in that the end of the piston rod (11) of said hydraulic cylinder (1) is fitted with an impact piston (12) and a positioning piston (15) in sequence; an impact assembly (13) and a spill assembly (14) are fitted into the impact piston (12).

4. The improved electro-hydraulic actuator according to claim 1, wherein a first flow passage (21) and a second flow passage (22) are arranged on the hydraulic cylinder (1) and the confluence block (2), the inlet of the first flow passage (21) is arranged at the lower part of the cylinder body, and the inlet of the second flow passage (22) is arranged at the upper part of the cylinder body.

5. The improved electrohydraulic actuator according to claim 1, characterized in that the oil pump portion (3) comprises a pump body (31) and a housing (32), the pump body (31) is assembled in the housing (32), an oil storage chamber (33) is formed between the housing (32) and the pump body (31), and an oil filling cover (321) is assembled on the housing (32).

6. The improved electrohydraulic actuator according to claim 1, characterized in that a sensor (52) is mounted on the upper part of the motor part (5), and the sensor (52) is connected with a remote transmission module (61).