CN113340577B - Pressure generator device - Google Patents

Abstract

The invention discloses a pressure generator device, which belongs to the technical field of pressure generation and transmission, and outputs different pressures through the correlation of different rotation speeds of a rotating shaft. The hydraulic oil in the pressure transmission action cylinder enters the pressure guide pipe when the rotating shaft rotates at a high speed, when more oil is gathered in the pressure guide pipe and the pressure is high, the oil pressure is converted into signals and transmitted, so that the generation and transmission of pressure signals are realized.

Description

A pressure generator device

Technical field

The present invention relates to the technical field of pressure generation and transmission, and specifically relates to a pressure generator device.

Background technique

Most of the existing pressure generating devices are installed on the components to be detected to detect the working status of the detection object to ensure that the detection object can operate normally.

The existing pressure generating device for detecting the rotating shaft cannot detect the pressure signals generated by the rotating shaft at different rotational speeds according to the real-time rotation speed of the rotating shaft, and transmit the detected pressure signals in time. This is It will greatly affect the detection effect of the pressure generating device on the rotating shaft, and at the same time affect the safety performance of the rotating shaft during rotation.

Contents of the invention

1. Technical problems to be solved

The object of the present invention is to provide a pressure generator device to solve the problems raised in the above background art.

2.Technical solutions

In order to solve the above problems, the present invention adopts the following technical solutions:

A pressure generator device that outputs different pressures in correlation with different rotational speeds of a rotating shaft. The device includes a pressure generating component and a pressure transmitting component. The pressure generating component has a boost cage fixed ring fixed on the rotating shaft, It also has a boosting action cylinder that is evenly arranged in the radial direction along the outer annular surface of the boosting cage fixed ring. The boosting action cylinder has a piston assembly that can extend or retract in the radial direction of the rotation axis, and the piston A pulley is installed at the end of the component, and the rotation axis of the pulley is in the same direction as the rotation axis;

The pressure transmission assembly includes an annular pressure cage rigidly connected to the sleeve of the rotating shaft. The outer annular surface of the pressure cage is evenly provided with a pressure transmission action cylinder in the radial direction. The pressure transmission action cylinder is divided into medium chambers by pistons. and a piston rod cavity. The piston rod cavity is close to the annular pressure cage, and the piston rod is provided with a hinged end after passing through the annular pressure cage inward. The inner side of the annular pressure cage is coaxially provided with at least two sets of fan-shaped tracks. A pressure guide ring is formed, and each group of sector tracks is connected to the hinged end of at least one piston rod; when no lateral external force acts on the rotating shaft, the annular pressure cage, the rotating shaft, the boost cage fixed ring and The pressure guide ring is in a coaxial state, the boost cage fixed ring is located inside the pressure guide ring, and the pulley is just embedded in the sector track, and when the rotating shaft rotates, the pulley slides freely along the sector track. , the medium chambers are all connected to a pressure guiding tube filled with medium, and the pressure change is transmitted through the pressure guiding tube.

Further, the piston assembly includes a boost piston plate located in the boost action cylinder and a boost piston rod connected to the boost piston plate that radially extends out of the boost action cylinder. The boost piston rod The pulley is rotatably connected to the outside of the boosting action cylinder, and an adjustment spring is provided between both end surfaces of the boosting piston plate and the boosting action cylinder.

Furthermore, a friction washer is provided between the fixed ring of the boost cage and the rotating shaft, and the friction washer is connected to the inner wall of the fixed ring of the boost cage through fastening bolts.

Further, the boost cage fixed ring is made of a symmetrical semi-circular ring that is hinged at one end through a connecting screw and fixed at the other end by a fixed bolt locking structure.

Further, in one of the boosting cylinders, the boosting piston rod extends outward to the outside of the boosting cylinder and can trigger the relay.

Further, the boost cage fixed ring is connected to a fixed ring through multiple fixed webs arranged in a conical shape, and the boost cage fixed ring and the fixed ring are coaxially arranged, and the fixed ring is sleeved on the rotating outside the shaft sleeve.

Further, the pressure guide pipe includes an oil passage for holding hydraulic oil, a connector installed on the inner ring of the pressure guide pipe and used to communicate with the oil inside the pressure transmission actuator, and a connector installed on the outer ring of the pressure guide pipe. pipeline.

3. Beneficial effects

1. In the present invention, the boost cage fixed ring is fixedly sleeved on the rotating shaft. When the rotating shaft rotates at high speed, the boost action barrels installed at equal intervals on the outer ring of the boost cage fixed ring will be subjected to centrifugal force. At this time, the boost piston in the boost action cylinder will expand and contract outward under the action of centrifugal force, and the pulley installed on the end of the boost piston will slide on the pressure guide ring and squeeze the pressure guide ring. Since the piston on the pressure transmitting action cylinder is fixedly installed on the pressure guide ring, when the pressure guide ring is squeezed by the boost piston, the piston on the pressure transmitting action cylinder will also be squeezed by the pressure guide ring and will Pressurize the hydraulic oil in the pressure transmitting action cylinder so that the hydraulic oil in the pressure transmitting action cylinder enters the pressure guide pipe when the rotating shaft rotates at high speed. When there is a large amount of oil accumulation inside the pressure guide pipe and the pressure is high, this The oil pressure will be converted into a signal and transmitted out to realize the generation and transmission of the pressure signal. This pressure generation device realizes the generation and transmission of different pressure signals by sensing the real-time rotation speed of the rotating shaft. The sensitivity of this pressure generation device High, signal response and transmission speed are fast.

2. In the present invention, when the rotating shaft is affected by external force during rotation, the rotating shaft will move slightly inside the sleeve, that is, when the rotating shaft has a tendency to move upward or has already moved upward in the sleeve, Since the rotating shaft is always rotating, the boosting piston in the boosting action cylinder will always be affected by centrifugal force. When the rotating shaft moves upward, the boosting piston will move under the action of inertia. Due to the pulley It has an axial connection structure with the track groove of the pressure guide ring. The boost piston in the boost action cylinder located above the rotating shaft will extend and squeeze the corresponding part of the pressure guide ring upward, thus causing an upward pressure on the pressure guide ring. The piston rod above the pressure ring squeezes upward. At this time, the piston plate on the piston rod squeezes the hydraulic oil in the pressure transmission cylinder to buffer the pressure guide ring that is being squeezed upward. At the same time, the piston rod located below the pressure guide ring can also be used to lift up the piston plate in the pressure transmission action cylinder, causing negative pressure to be generated inside the pressure transmission action cylinder located below the pressure guide ring. This can The rising rotating shaft is pulled downward. That is, when the rotating shaft is offset in a certain direction, the two boosting action cylinders 4, the pressure transmission action tube and the guide corresponding to the offset position can be used. The mutual cooperation of the pressure rings 12 realizes buffering and protection of the rotating shaft that is deflecting;

To sum up, it can be concluded that when a pressure transmitting actuator generates pressure on the pressure guiding tube when vibrating, the pressure transmitting actuator on the symmetrical side will generate negative pressure in the pressure guiding tube, and this negative pressure will absorb the pressure on the symmetrical side. The flow of hydraulic oil caused by pressure weakens the pressure fluctuations caused by the pressure on the system. To sum up, through the cooperative design of the boosting actuating cylinder 4, the pressure transmitting actuating cylinder and the pressure guide ring 12, the buffering protection of the rotating shaft can be achieved.

Description of the drawings

Figure 1 is an exploded structural diagram of the pressure generating component;

Figure 2 is a front view of the internal structure of the pressure transmission component;

Figure 3 is a comparison view of the main side view of the pressure transmission component in the installed state;

Figure 4 is a comparison view of the main side view of the partial internal structure of the pressure guide ring;

Figure 5 is a schematic structural diagram of the pressure guiding tube in a pressure hedging state.

Reference signs: 1-1, connecting screw; 1-2, boost cage fixed ring; 1-3, pulley; 1-4, boost action cylinder; 1-5, friction washer; 1-6, fixing bolt ; 1-7, fastening bolt; 1-31, screw; 1-32, nut; 1-33, T-shaped connecting shaft; 1-34 connecting plate; 1-41, adjusting spring; 1-42, boost Piston; 1-43, action cylinder nut; 1-44, action cylinder body; 1-8, semi-annular bracket one; 1-9, semi-annular bracket two; 1-10, fixing bolt; 1-11, connection Bolt; 1-12 pressure guide ring; 1-13, pressure transmission actuator; 1-14, fixed web; 1-15, fixed ring; 1-16, fixed steel belt; 1-17, pressure guide pipe; 1 -18. Friction washer, 1-171. Oil passage; 1-172. Connector; 1-173. Pipe; 1-19. Relay.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and examples.

Example 1

A pressure generator device as shown in Figure 1 includes a pressure generating device that outputs different pressures in correlation with different rotational speeds of a rotating shaft. The device includes a pressure generating component and a pressure transmitting component. The pressure generating component has a fixed The boost cage fixed ring 1-2 on the rotating shaft also has a boost action cylinder 1-4 evenly arranged along the outer ring surface of the boost cage fixed ring 1-2 in the radial direction. The action cylinder 1-4 has a piston assembly that can extend or retract in the radial direction of the rotation axis, and a pulley 1-3 is installed at the end of the piston assembly, and the rotation axis of the pulley 1-3 is in the same direction as the rotation axis;

As shown in Figure 2, the pressure transmission assembly includes an annular pressure cage rigidly connected to the sleeve of the rotating shaft. The outer annular surface of the pressure cage is evenly provided with pressure transmission actuating cylinders 1-13 in the radial direction. The pressure action cylinder 1-13 is divided into a medium chamber and a piston rod chamber by a piston. The piston rod chamber is close to the annular pressure cage, and the piston rod is provided with a hinged end after passing through the annular pressure cage inward. The annular pressure cage A pressure guide ring 1-12 composed of at least two sets of sector-shaped tracks is coaxially provided on the inside of the frame, and each set of sector-shaped tracks is connected to the hinged end of at least one piston rod; when no lateral external force acts on the rotating shaft, the The annular pressure cage, the rotating shaft, the boost cage fixed ring 1-2 and the pressure guide ring 1-12 are in a coaxial state, and the boost cage fixed ring 1-2 is located inside the pressure guide ring 1-12 , and the pulley is just embedded in the sector-shaped track, and when the rotating shaft rotates, the pulley 1-3 slides freely along the sector-shaped track, and the medium chambers are all connected to a pressure guiding tube 1-17 filled with medium and The pressure change is transmitted through the pressure guiding tubes 1-17.

As shown in Figure 1, the piston assembly includes a boost piston plate 1-45 located in a boost action cylinder 1-4 and a radially extending boost action cylinder 1 connected to the boost piston plate 1-45. The boost piston rod 1-42 outside the boost action cylinder 1-4 is rotatably connected to the pulley 1-3, and the two sides of the boost piston plate 1-45 are connected to the pulley 1-3. Adjustment springs 1-41 are provided between the end face and the boosting action barrel 1-4.

As shown in Figure 1, a friction washer 1-5 is also provided between the boost cage fixed ring 1-2 and the rotating shaft, and the friction washer 1-5 is fixed to the boost cage through fastening bolts 1-7 The inner walls of rings 1-2 are connected.

As shown in Figure 1, the boost cage fixed ring 1-2 is a symmetrical semi-circular ring with one end hinged through a connecting screw 1-1, and the other end fixed by a fixed bolt 1-6;

As shown in Figure 1, the pulley 1-3 is connected to the telescopic end of the booster cylinder 1-4 through a detachable connection mechanism. The connection mechanism includes a T-shaped connecting shaft 1-33, a through-T-shaped connecting shaft 1 The screw 1-31 of the -33 central axis, the connecting plate 1-34 sleeved on the screw 1-31, the end of the screw 1-31 is threaded to fix the connecting plate 1-34 to the T-shaped connecting shaft 1 The nut 1-32 on one end of -33, the pulley 1-3 is sleeved on the T-shaped connecting shaft 1-33.

As shown in Figure 2, in one of the boost action cylinders 1-4, the boost piston rod 1-42 extends outward to the outside of the boost action cylinder 1-4 and can trigger the relay 1-19. When the rotating shaft rotates at high speed, When rotating, not only the hydraulic signal can be transmitted through the hydraulic oil, but also the signal can be transmitted on the circuit through the triggered relays 1-19, realizing bidirectional signal transmission, making the pressure generating device more widely applicable.

As shown in Figure 3, the boost cage fixed ring 1-2 is connected to a fixed ring 1-15 through multiple fixed webs 1-14 arranged in a tapered shape, and the boost cage fixed ring 1-2 is connected to a fixed ring 1-15. The fixed rings 1-15 are coaxially arranged, and the fixed rings 1-15 are sleeved outside the sleeve of the rotating shaft.

As shown in Figure 2, a fixed steel band 1-16 is wrapped around the outer periphery of the fixed ring 1-15, and the open end of the fixed steel band 1-16 is locked by bolts.

As shown in Figure 3, the pressure cage is made up of two annular brackets 1-8 and annular brackets 2 1-9 with a fan-ring structure butt spliced together, and annular brackets 1-8 and annular brackets 2 1 -9 One end is butt connected through fixing bolts 1-10, and the other end is hingedly connected through connecting shaft 1-11.

As shown in Figure 4, the pressure guide pipe 1-17 includes an oil passage 1-171 for holding hydraulic oil, which is installed on the inner ring of the pressure guide pipe 1-17 and used to communicate with the pressure transmission actuator 1-13. The internal oil connector 1-172 and the pipe 1-173 installed on the outer ring of the pressure guide pipe 1-17.

The specific application process of the above pressure generating device is: when in use, when the rotating shaft is traveling at high speed, the boost action barrels 1-4 installed at equal intervals on the outer ring of the boost cage fixed ring 1-2 will be affected by centrifugal force. When the boost piston plate 1-45 in the boost action cylinder 1-4 will expand and contract outward under the action of centrifugal force, the pulley 1-3 installed on the end of the boost piston rod 1-42 will pair the pressure guide ring. 1-12 causes extrusion. Since the piston on the pressure transmitting action barrel 1-13 is fixedly installed on the pressure guide ring 1-12, when the pressure guide ring 1-12 is squeezed by the boost piston rod 1-42, The piston on the pressure transmitting action cylinder 1-13 will also be squeezed by the pressure guide ring 1-12 and pressurize the hydraulic oil in the pressure transmitting action cylinder 1-13, so that the pressure transmitting action cylinder 1-13 will Hydraulic oil enters the pressure guide pipe 1-17 when the rotating shaft rotates at high speed. When there is a large amount of oil inside the pressure guide pipe 1-17 and the pressure is high, the oil will be output along the pipe 1-173, thereby achieving hydraulic When the rotating shaft rotates at high speed, the signal transmission on the circuit can also be realized through the triggered relay 1-19. This pressure generating device can realize the transmission of hydraulic and circuit signals at the same time when the rotating shaft rotates at high speed. , making the pressure generating device more widely applicable;

As shown in Figure 5, if the rotating shaft moves slightly due to vibration or other reasons inside the sleeve, that is, when a boost piston rod exerts a pressure push on the pressure guide ring 1-12 that matches it, the The boost piston rod on the opposite side exerts a pulling force on the pressure guide ring 1-12 that cooperates with it. The benefit of this process is that when a certain boost action cylinder 1-4 vibrates, it exerts a tensile force on the pressure guide tube 1. When -17 generates pressure, the boost action cylinder 1-4 on the symmetrical side will generate negative pressure in the pressure guide tube 1-17. This negative pressure will absorb the hydraulic oil flow caused by the pressure on the symmetrical side and weaken the impact of this pressure on the system. pressure fluctuations.

Those of ordinary skill in the art should realize that the above embodiments are only used to illustrate the present invention and are not used to limit the present invention. As long as they are within the scope of the essential spirit of the present invention, the above embodiments can be Changes and modifications will fall within the scope of the claims of the present invention.

Claims (5)

1. A pressure generator device that outputs different pressures in correlation with different rotational speeds of a rotating shaft. It is characterized in that the device includes a pressure generating component and a pressure transmitting component, and the pressure generating component has a lifting device fixed on the rotating shaft. The pressure cage fixed ring also has a boosting action cylinder evenly arranged in the radial direction along the outer ring surface of the boosting cage fixing ring. The boosting action tube has a function that can extend or retract in the radial direction of the rotation axis. A piston assembly, and a pulley is installed at the end of the piston assembly, and the rotation axis of the pulley is in the same direction as the rotation axis; The pressure transmission assembly includes an annular pressure cage rigidly connected to the sleeve of the rotating shaft. The outer annular surface of the pressure cage is evenly provided with a pressure transmission action cylinder in the radial direction. The pressure transmission action cylinder is divided into medium chambers by pistons. and a piston rod cavity. The piston rod cavity is close to the annular pressure cage, and the piston rod is provided with a hinged end after passing through the annular pressure cage inward. The inner side of the annular pressure cage is coaxially provided with at least two sets of fan-shaped tracks. A pressure guide ring is formed, and each group of sector tracks is connected to the hinged end of at least one piston rod; when no lateral external force acts on the rotating shaft, the annular pressure cage, the rotating shaft, the boost cage fixed ring and The pressure guide ring is in a coaxial state, the boost cage fixed ring is located inside the pressure guide ring, and the pulley is just embedded in the sector track, and when the rotating shaft rotates, the pulley slides freely along the sector track. , the medium chambers are all connected to a pressure guiding tube filled with medium and transmit the pressure change through the pressure guiding tube; The piston assembly includes a boost piston plate located in the boost action cylinder and a boost piston rod connected to the boost piston plate that radially extends out of the boost action cylinder. The boost piston rod is used in the boost operation. The pulley is rotatably connected to the outside of the action cylinder, and an adjustment spring is provided between both end surfaces of the boost piston plate and the boost action tube. 2. A pressure generator device according to claim 1, characterized in that a friction washer is provided between the fixed ring of the boost cage and the rotating shaft, and the friction washer is connected to the boost retainer through fastening bolts. The inner wall connection of the frame fixing ring. 3. A pressure generator device according to claim 1, characterized in that the boost cage fixed ring is hinged by a connecting screw at one end of a symmetrical semi-circular ring, and is fixed by a fixed bolt-locked structure at the other end. . 4. A pressure generator device according to claim 1, characterized in that the boost cage fixed ring is connected to a fixed ring through multiple fixed webs arranged in a conical shape, and the boost cage is fixed The ring and the fixed ring are arranged coaxially, and the fixed ring is sleeved outside the sleeve of the rotating shaft. 5. A pressure generator device according to claim 1, characterized in that the pressure guide tube includes an oil passage for holding hydraulic oil, is installed on the inner ring of the pressure guide tube and is used for communicating pressure transmission actions. The connector for the oil inside the cylinder and the pipe installed on the outer ring of the pressure guide pipe.