CN110906010A - Hydraulic opening and closing device with good sealing effect for hydraulic engineering - Google Patents

Hydraulic opening and closing device with good sealing effect for hydraulic engineering Download PDF

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Publication number
CN110906010A
CN110906010A CN201911132280.0A CN201911132280A CN110906010A CN 110906010 A CN110906010 A CN 110906010A CN 201911132280 A CN201911132280 A CN 201911132280A CN 110906010 A CN110906010 A CN 110906010A
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CN
China
Prior art keywords
piston
sealing
rod
main body
hydraulic
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Withdrawn
Application number
CN201911132280.0A
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Chinese (zh)
Inventor
李玉盛
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Guangzhou Songbin Engineering Technology Co Ltd
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Guangzhou Songbin Engineering Technology Co Ltd
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Priority to CN201911132280.0A priority Critical patent/CN110906010A/en
Publication of CN110906010A publication Critical patent/CN110906010A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/50Mechanical actuating means with screw-spindle or internally threaded actuating means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025Electrical or magnetic means
    • F16K37/005Electrical or magnetic means for measuring fluid parameters

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Actuator (AREA)

Abstract

The invention relates to a hydraulic opening and closing device with good sealing effect for hydraulic engineering, which comprises a main body, a cylinder body, a piston and two connecting pipes, wherein the main body is in a cuboid shape, the top of the main body is provided with an installation hole, the cylinder body is positioned above the main body and is fixedly connected with the top of the main body, the piston is vertical to the top of the main body, the piston is installed in the cylinder body, the piston passes through the installation hole and is in sliding and sealing connection with the inner wall of the installation hole, the two connecting pipes are respectively arranged at two sides of the main body, two sealing mechanisms and auxiliary mechanisms are arranged in the main body, the sealing mechanisms and the connecting pipes are in one-to-one correspondence, the hydraulic opening and closing device with good sealing effect for hydraulic engineering realizes the sealing effect through the sealing mechanisms, achieves the opening and closing function, and realizes the function of crushing impurities through the, the sealing effect is prevented from being influenced by impurities.

Description

Hydraulic opening and closing device with good sealing effect for hydraulic engineering
Technical Field
The invention relates to the field of hydraulic valves, in particular to a hydraulic opening and closing device with a good sealing effect for hydraulic engineering.
Background
The valve is a pipeline accessory used for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters of a conveying medium, wherein the hydraulic valve is one of valves and is a valve for realizing transmission through hydraulic pressure.
The hydraulic pressure valve for hydraulic engineering that has now is closing the in-process, because there is water pressure in the inlet tube, makes the closing plate receive one-way effort, so easily leads to the closing plate to produce deformation for a long time to reduce the leakproofness, moreover, impurity often can appear in the hydraulic pressure valve, and impurity can influence the sealed effect of closing the in-process of closing the closing plate equally, has reduced the practicality.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the hydraulic opening and closing device for the hydraulic engineering is good in sealing effect.
The technical scheme adopted by the invention for solving the technical problems is as follows: a hydraulic opening and closing device with good sealing effect for hydraulic engineering comprises a main body, a cylinder body, a piston and two connecting pipes, wherein the main body is cuboid in shape, a mounting hole is formed in the top of the main body, the cylinder body is located above the main body and fixedly connected with the top of the main body, the piston is perpendicular to the top of the main body, the piston is installed in the cylinder body, the piston penetrates through the mounting hole and slides and is in sealing connection with the inner wall of the mounting hole, the two connecting pipes are respectively arranged on two sides of the main body and are communicated with each other through the main body, the piston is located between the two connecting pipes, the axis of each connecting pipe is perpendicular to the axis of the piston, a hydraulic system is arranged in the cylinder body, two sealing mechanisms and auxiliary mechanisms are arranged in the main body, and;
the sealing mechanism comprises a sealing disc and three guide assemblies, the sealing disc and the connecting pipe are coaxially arranged, the diameter of the sealing disc is larger than the outer diameter of the connecting pipe, the sealing disc is attached to the inner wall of the main body and is in sealing connection with the inner wall of the main body, the guide assemblies are uniformly distributed by taking the axis of the connecting pipe as a central axis, and one side of the sealing disc, which is close to the axis of the piston, is connected with the bottom end of the piston through an auxiliary mechanism;
the guide assembly comprises a fixed rod, a fixed block, a spring, a sliding block and a ball, the fixed rod is parallel to the connecting pipe, one end of the fixed rod is fixed on the inner wall of the main body, the fixed block is fixed at the other end of the fixed rod, the sliding block is sleeved on the fixed rod, the spring is located between the fixed block and the sliding block, the sliding block is connected with the fixed block through the spring, an annular groove is formed in the periphery of the sealing disc, the ball center of the ball is arranged in the annular groove, the ball is matched with the annular groove and is in sliding connection with the inner wall of the annular groove, the ball diameter of the ball is larger than the width;
the auxiliary mechanism comprises a connecting plate and two auxiliary components, the connecting plate is perpendicular to the piston, the connecting plate is fixed at one end of the piston, which is far away from the cylinder body, and the auxiliary components correspond to the sealing discs one by one;
the auxiliary assembly comprises a support rod, a connecting rod, a screw rod, a ball screw bearing, a limiting block and a sliding groove, the screw rod and the connecting pipe are coaxially arranged, one end of the screw rod is fixed on the sealing disc, the limiting block is fixed at the other end of the screw rod, the screw rod is provided with an external thread, the ball screw bearing is provided with an internal thread, the external thread is matched with the internal thread, the ball screw bearing is arranged on the screw rod, the support rod is parallel to the connecting plate and is vertical to the connecting pipe, the support rod is fixed on the inner wall of the main body, one end of the connecting rod is hinged with the outer ring of the ball screw bearing, the other end of the connecting rod is hinged with the connecting plate, the sliding groove is arranged at the middle end of the connecting rod, the supporting rod is arranged in the sliding groove and is connected with the inner wall of the sliding groove in a sliding way, the connecting rod is obliquely arranged, and the distance between one end of the connecting rod, which is close to the piston, and the axis of the piston is smaller than the distance between the other end of the connecting rod and the axis of the piston.
Preferably, in order to reduce the friction between the slider and the fixing rod, the fixing rod is coated with grease.
As preferred, in order to facilitate smashing impurity, all be equipped with in two connecting pipes and cut the dish, cut dish and the coaxial setting of connecting pipe, the diameter of cutting the dish equals with the internal diameter of connecting pipe, cut the inner wall slip and sealing connection of dish and connecting pipe, it fixes on sealed dish to cut the dish.
Preferably, in order to improve the crushing effect, the two shearing discs are provided with auxiliary blocks on the sides far away from the sealing discs, the auxiliary blocks are conical, the auxiliary blocks are coaxial with the connecting pipes, and the ends of the auxiliary blocks with the largest diameters are fixed on the shearing discs.
Preferably, in order to facilitate the installation of the fixing rod, the fixing rod is provided with a chamfer.
Preferably, in order to reduce the clearance between the sealing disc and the inner wall of the main body, the joint of the sealing disc and the main body is coated with sealing grease.
Preferably, in order to prolong the service life of the connecting plate, an anti-corrosion zinc coating is arranged on the connecting plate.
Preferably, in order to realize the function of detecting leakage, a water pressure sensor is arranged in the main body, a PLC and an antenna are arranged on the main body, and the antenna and the water pressure sensor are electrically connected with the PLC.
Preferably, in order to achieve the effects of buffering and vibration reduction, the limiting block is made of rubber.
Preferably, the color of the body is white in order to reduce the heat absorption capacity of the body for light.
The hydraulic opening and closing device for the hydraulic engineering has the advantages that the hydraulic opening and closing device with good sealing effect achieves the sealing effect through the sealing mechanism, the opening and closing function is achieved, compared with the existing sealing mechanism, the sealing mechanism is supported against the sealing disc through the ball screw bearing, the sealing disc can be prevented from being deformed and influencing the sealing performance due to the fact that the sealing disc is subjected to acting force in the direction close to the axis of the piston for a long time under the action of water pressure, the function of crushing impurities is achieved through the auxiliary mechanism, the sealing effect is prevented from being influenced by the impurities, compared with the existing auxiliary mechanism, the auxiliary mechanism does not need to be additionally provided with a driving device to drive the sealing disc to rotate, and the practicability is stronger.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of a hydraulic opening and closing device with good sealing effect for hydraulic engineering, which is disclosed by the invention;
FIG. 2 is a cross-sectional view of the hydraulic opening and closing device with good sealing effect for hydraulic engineering of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is an enlarged view of portion B of FIG. 2;
in the figure: 1. the hydraulic pressure sensor comprises a main body, a cylinder body 2, a piston 3, a connecting pipe 4, a sealing disc 5, a fixing rod 6, a fixing block 7, a spring 8, a slider 9, a ball 10, a connecting plate 11, a supporting rod 12, a connecting rod 13, a lead screw 14, a ball screw bearing 15, a limiting block 16, a shearing disc 17, an auxiliary block 18 and a hydraulic pressure sensor 19.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1-4, a hydraulic opening and closing device with good sealing effect for hydraulic engineering comprises a main body 1, a cylinder body 2, a piston 3 and two connecting pipes 4, wherein the main body 1 is cuboid in shape, a mounting hole is formed in the top of the main body 1, the cylinder body 2 is positioned above the main body 1 and fixedly connected with the top of the main body 1, the piston 3 is perpendicular to the top of the main body 1, the piston 3 is installed in the cylinder body 2, the piston 3 penetrates through the mounting hole and is in sliding and sealing connection with the inner wall of the mounting hole, the two connecting pipes 4 are respectively arranged on two sides of the main body 1, the two connecting pipes 4 are communicated through the main body 1, the piston 3 is positioned between the two connecting pipes 4, the axis of the connecting pipe 4 is perpendicular to the axis of the piston 3, a hydraulic system is arranged in the cylinder body 2, and two sealing mechanisms and, the sealing mechanisms correspond to the connecting pipes 4 one by one;
the sealing mechanism comprises a sealing disc 5 and three guide assemblies, the sealing disc 5 and a connecting pipe 4 are coaxially arranged, the diameter of the sealing disc 5 is larger than the outer diameter of the connecting pipe 4, the sealing disc 5 is attached to the inner wall of the main body 1 and is in sealing connection with the inner wall of the main body 1, the guide assemblies are uniformly distributed by taking the axis of the connecting pipe 4 as a central axis, and one side, close to the axis of the piston 3, of the sealing disc 5 is connected with the bottom end of the piston 3 through an auxiliary mechanism;
the guide assembly comprises a fixing rod 6, a fixing block 7, a spring 8, a sliding block 9 and a ball 10, the fixing rod 6 is parallel to the connecting pipe 4, one end of the fixing rod 6 is fixed on the inner wall of the main body 1, the fixing block 7 is fixed at the other end of the fixing rod 6, the sliding block 9 is sleeved on the fixing rod 6, the spring 8 is located between the fixing block 7 and the sliding block 9, the sliding block 9 is connected with the fixing block 7 through the spring 8, an annular groove is formed in the periphery of the sealing disc 5, the center of the ball 10 is arranged in the annular groove, the ball 10 is matched with the annular groove and is in sliding connection with the inner wall of the annular groove, the diameter of the ball 10 is larger than the width of a notch of;
the auxiliary mechanism comprises a connecting plate 11 and two auxiliary components, the connecting plate 11 is perpendicular to the piston 3, the connecting plate 11 is fixed at one end of the piston 3 far away from the cylinder body 2, and the auxiliary components correspond to the sealing discs 5 one by one;
the auxiliary assembly comprises a support rod 12, a connecting rod 13, a screw rod 14, a ball screw bearing 15, a limiting block 16 and a sliding groove, wherein the screw rod 14 and a connecting pipe 4 are coaxially arranged, one end of the screw rod 14 is fixed on a sealing disc 5, the limiting block 16 is fixed at the other end of the screw rod 14, an external thread is arranged on the screw rod 14, an internal thread is arranged on the ball screw bearing 15 and matched with the internal thread, the ball screw bearing 15 is installed on the screw rod 14, the support rod 12 is parallel to the connecting plate 11 and is vertical to the connecting pipe 4, the support rod 12 is fixed on the inner wall of the main body 1, one end of the connecting rod 13 is hinged with the outer ring of the ball screw bearing 15, the other end of the connecting rod 13 is hinged with the connecting plate 11, the sliding groove is arranged at the middle end of the connecting rod 13, the connecting rod 13 is obliquely arranged, and the distance between one end of the connecting rod 13 close to the piston 3 and the axis of the piston 3 is smaller than the distance between the other end of the connecting rod 13 and the axis of the piston 3.
When the device needs to be opened, the piston 3 is lifted in the cylinder body 2 through a hydraulic system, so that the connecting plate 11 can realize synchronous movement, the connecting plate 11 moves to enable the connecting rod 13 to drive the ball screw bearing 15 to move towards the direction close to the limiting block 16 on the screw rod 14, meanwhile, the inner wall of the sliding groove slides on the supporting rod 12, when the ball screw bearing 15 is abutted against the limiting block 16, the screw rod 14 drives the sealing disc 5 to move towards the direction close to the axis of the piston 3 through the continuous lifting of the piston 3, the sliding block 9 moves towards the direction close to the fixed box on the fixed rod 6 through the ball 10 by the movement of the sealing disc 5, and the spring 8 is compressed, at the moment, the sealing disc 5 is separated from the inner wall of the main body 1, so that water can be conveyed into the main body 1 from one connecting pipe 4 and then discharged through the other connecting pipe 4, and when the device, meanwhile, the slider 9 is reset under the elastic action of the spring 8, the reset of the slider 9 enables the sealing disc 5 to reset through the ball 10, thereby enabling the sealing disc 5 to block the connecting pipe 4, the ball bearing 15 moves on the screw along with the continuous descending of the piston 3, because the ball bearing 15 converts the rotary motion into the linear motion, or converts the linear motion into the bearing of the rotary motion, thereby enabling the screw 14 to drive the sealing disc 5 to rotate, impurities between the sealing disc 5 and the inner wall of the main body 1 can be crushed and eliminated through the rotation of the sealing disc 5, thereby avoiding the influence of the impurities on the sealing performance between the sealing disc 5 and the main body 1, here, the function of supporting the rotation of the sealing disc 5 is played through the matching between the ball 10 and the annular groove, when the ball bearing 15 is abutted against the sealing disc 5, the piston 3 stops moving, here, the function of supporting the sealing disc 5 can be realized through the, the sealing disc 5 is prevented from being deformed under the action of water pressure for a long time under the action of the acting force towards the axial direction of the piston 3, so that the sealing performance is not influenced.
Preferably, the fixing rod 6 is coated with grease in order to reduce the friction between the slider 9 and the fixing rod 6.
The lubricating grease has the characteristic of insolubility in water, can reduce the friction force between the sliding block 9 and the fixed rod 6, and improves the moving fluency of the sliding block 9.
As preferred, in order to smash impurity, all be equipped with in two connecting pipes 4 and cut dish 17, cut dish 17 and the coaxial setting of connecting pipe 4, the diameter of cutting dish 17 equals with the internal diameter of connecting pipe 4, cut dish 17 and the inner wall slip and sealing connection of connecting pipe 4, cut dish 17 fixes on sealed dish 5.
When the inner wall laminating of sealed dish 5 and main part 1, make sealed dish 5 drive and cut dish 17 and remove to connecting pipe 4 in, during, can make and cut the impurity realization that dish 17 will block between connecting pipe 4 and sealed dish 5 and cut off, be convenient for sealed dish 5 smashes impurity.
Preferably, in order to improve the crushing effect, the two shearing discs 17 are provided with auxiliary blocks 18 on the sides far away from the sealing discs 5, the auxiliary blocks 18 are conical, the auxiliary blocks 18 are arranged coaxially with the connecting pipe 4, and one end of the auxiliary block 18 with the largest diameter is fixed on the shearing discs 17.
During the device is opened, rivers impact the impurity on the supplementary piece 18 of sword, can smash impurity through supplementary piece 18 to promote crushing effect.
Preferably, in order to facilitate the installation of the fixing rod 6, the fixing rod 6 is provided with a chamfer.
The chamfer angle is used for reducing the caliber of the fixed rod 6 when the fixed rod passes through the sliding block 9, and the effect of convenient installation is achieved.
Preferably, in order to reduce the gap between the sealing disc 5 and the inner wall of the main body 1, the joint of the sealing disc 5 and the main body 1 is coated with sealing grease.
The sealing grease has the characteristic of insolubility in water, can reduce the clearance between the sealing disc 5 and the inner wall of the main body 1, and improves the sealing property.
Preferably, in order to prolong the service life of the connecting plate 11, an anti-corrosion zinc coating is arranged on the connecting plate 11.
The function of anticorrosive galvanizing coat is to promote the rust-resistant ability of connecting plate 11, prolongs the life of connecting plate 11.
Preferably, in order to realize the function of detecting leakage, a water pressure sensor 19 is arranged in the main body 1, a PLC and an antenna are arranged on the main body 1, and the antenna and the water pressure sensor 19 are both electrically connected with the PLC.
The PLC, namely a programmable logic controller, adopts a programmable memory, is used for storing programs in the programmable memory, executes instructions facing users such as logic operation, sequence control, timing, counting, arithmetic operation and the like, and controls various types of machinery or production processes through digital or analog input and output, is a computer special for industrial control, has a hardware structure basically the same as that of a microcomputer, is generally used for data processing and instruction receiving and output and is used for realizing central control, when leakage occurs during the closing period of the main body 1, the detection value of the water pressure sensor 19 exceeds a set value, at the moment, the water pressure sensor 19 sends a signal to the PLC, and a PLC control antenna sends a wireless signal to a user to realize leakage alarm.
Preferably, in order to achieve the effects of buffering and vibration reduction, the material of the limiting block 16 is rubber.
The rubber is soft, the impact force generated when the ball screw bearing 15 abuts against the limiting block 16 can be reduced, the effects of buffering and vibration reduction are achieved,
preferably, the color of the body 1 is white in order to reduce the heat absorption capacity of the body 1 to light.
The white heat absorption capacity to light is lower, can reduce main part 1 because of expend with heat and contract with cold and increase the clearance between mounting hole inner wall and piston 3.
When the device needs to be opened, the piston 3 is lifted in the cylinder body 2 through a hydraulic system, so that the connecting plate 11 can realize synchronous movement, the connecting plate 11 moves to enable the connecting rod 13 to drive the ball screw bearing 15 to move on the screw 14 towards the direction close to the limiting block 16, meanwhile, the inner wall of the sliding groove slides on the supporting rod 12, when the ball screw bearing 15 is abutted against the limiting block 16, the screw 14 drives the sealing disc 5 to move towards the direction close to the axis of the piston 3 through the continuous lifting of the piston 3, the sliding block 9 moves on the fixing rod 6 towards the direction close to the fixing box through the ball 10 by the movement of the sealing disc 5, and the spring 8 is compressed, at the moment, the sealing disc 5 is separated from the inner wall of the main body 1, and drives the shearing disc 17 and the auxiliary block 18 to move into the main body 1 and separate from the connecting pipes 4, so that water can be, then the impurities are discharged through another connecting pipe 4, during the period, water flow impacts the impurities on the auxiliary cutter block 18, the function of crushing the impurities can be realized, thereby improving the crushing effect, when the device needs to be closed, the piston 3 descends, meanwhile, the slide block 9 resets under the elastic action of the spring 8, the reset of the slide block 9 enables the sealing disc 5 to reset through the ball 10, thereby the sealing disc 5 blocks the connecting pipe 4, meanwhile, the sealing disc 5 drives the shearing disc 17 to move into the connecting pipe 4, during the period, the shearing disc 17 can cut off the impurities clamped between the connecting pipe 4 and the sealing disc 5, the impurities can be conveniently crushed by the sealing disc 5, along with the continuous descending of the piston 3, the ball screw bearing 15 moves on the screw, because the ball screw bearing 15 converts the rotary motion into the linear motion, or converts the linear motion into the bearing of the rotary motion, thereby the screw 14 can drive the sealing disc 5, rotation through sealed dish 5 can be smashed and get rid of the impurity between sealed dish 5 and the 1 inner wall of main part, avoid impurity influence sealed dish 5 and the leakproofness between the main part 1, here, through the cooperation between ball 10 and the ring channel, the pivoted function of sealed dish 5 has been played and has been supported, support the back with sealed dish 5 when ball bearing 15, piston 3 stops moving, here, can realize supporting sealed dish 5's function through ball bearing 15, avoid sealed dish 5 to receive for a long time under hydraulic effect towards the effort that is close to 3 axial directions of piston and produce deformation influence leakproofness.
Compared with the prior art, this a hydraulic pressure headstock gear that is used for hydraulic engineering's sealed effectual has realized sealed effect through sealing mechanism, the function of opening and close has been reached, compare with current sealing mechanism, this sealing mechanism withstands sealed dish 5 through ball bearing 15, can avoid sealed dish 5 to receive for a long time under hydraulic effect towards the effort that is close to 3 axis directions of piston and produce deformation influence leakproofness, moreover, still realized the function of crushing impurity through complementary unit, avoid impurity influence sealed effect, compare with current complementary unit, this complementary unit need not to establish in addition drive arrangement drive sealed dish 5 and rotates, the practicality is stronger.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (10)

1. The utility model provides a sealed effectual hydraulic pressure headstock gear for hydraulic engineering, includes main part (1), cylinder body (2), piston (3) and two connecting pipe (4), the shape of main part (1) is the cuboid, the top of main part (1) is equipped with the mounting hole, cylinder body (2) be located the top of main part (1) and with the top fixed connection of main part (1), piston (3) are perpendicular with the top of main part (1), piston (3) are installed in cylinder body (2), piston (3) pass the mounting hole and with the inner wall slip and sealing connection of mounting hole, two connecting pipe (4) set up respectively in the both sides of main part (1), two connecting pipe (4) are through main part (1) intercommunication, piston (3) are located between two connecting pipe (4), the axis of connecting pipe (4) is perpendicular with the axis of piston (3), a hydraulic system is arranged in the cylinder body (2), and the hydraulic system is characterized in that two sealing mechanisms and auxiliary mechanisms are arranged in the main body (1), and the sealing mechanisms correspond to the connecting pipes (4) one by one;
the sealing mechanism comprises a sealing disc (5) and three guide assemblies, the sealing disc (5) and a connecting pipe (4) are coaxially arranged, the diameter of the sealing disc (5) is larger than the outer diameter of the connecting pipe (4), the sealing disc (5) is attached to the inner wall of the main body (1) and is in sealing connection with the inner wall of the main body, the guide assemblies are uniformly distributed by taking the axis of the connecting pipe (4) as a central axis, and one side, close to the axis of the piston (3), of the sealing disc (5) is connected with the bottom end of the piston (3) through an auxiliary mechanism;
the guide component comprises a fixed rod (6), a fixed block (7), a spring (8), a slide block (9) and a ball (10), the fixing rod (6) is parallel to the connecting pipe (4), one end of the fixing rod (6) is fixed on the inner wall of the main body (1), the fixed block (7) is fixed at the other end of the fixed rod (6), the slide block (9) is sleeved on the fixed rod (6), the spring (8) is positioned between the fixed block (7) and the sliding block (9), the sliding block (9) is connected with the fixed block (7) through a spring (8), the periphery of the sealing disc (5) is provided with an annular groove, the center of the ball (10) is arranged in the annular groove, the ball (10) is matched with the annular groove and is in sliding connection with the inner wall of the annular groove, the ball diameter of the ball (10) is larger than the width of the notch of the annular groove, and the sliding block (9) is fixedly connected with the ball (10);
the auxiliary mechanism comprises a connecting plate (11) and two auxiliary components, the connecting plate (11) is perpendicular to the piston (3), the connecting plate (11) is fixed at one end, far away from the cylinder body (2), of the piston (3), and the auxiliary components correspond to the sealing discs (5) one by one;
the auxiliary assembly comprises a supporting rod (12), a connecting rod (13), a screw rod (14), a ball screw bearing (15), a limiting block (16) and a sliding groove, the screw rod (14) and a connecting pipe (4) are coaxially arranged, one end of the screw rod (14) is fixed on a sealing disc (5), the limiting block (16) is fixed at the other end of the screw rod (14), an external thread is arranged on the screw rod (14), an internal thread is arranged on the ball screw bearing (15), the external thread is matched with the internal thread, the ball screw bearing (15) is installed on the screw rod (14), the supporting rod (12) is parallel to a connecting plate (11) and is perpendicular to the connecting pipe (4), the supporting rod (12) is fixed on the inner wall of the main body (1), one end of the connecting rod (13) is hinged with the outer ring of the ball screw bearing (15), and the other end of the connecting rod (13) is, the sliding groove is arranged at the middle end of the connecting rod (13), the supporting rod (12) is arranged in the sliding groove and is in sliding connection with the inner wall of the sliding groove, the connecting rod (13) is obliquely arranged, and the distance between one end, close to the piston (3), of the connecting rod (13) and the axis of the piston (3) is smaller than the distance between the other end of the connecting rod (13) and the axis of the piston (3).
2. The hydraulic opening and closing device with good sealing effect for hydraulic engineering according to claim 1, wherein the fixing rod (6) is coated with lubricating grease.
3. The hydraulic opening and closing device with the good sealing effect for the hydraulic engineering according to claim 1, wherein a shearing disc (17) is arranged in each of the two connecting pipes (4), the shearing disc (17) and the connecting pipes (4) are coaxially arranged, the diameter of the shearing disc (17) is equal to the inner diameter of the connecting pipes (4), the shearing disc (17) is in sliding and sealing connection with the inner walls of the connecting pipes (4), and the shearing disc (17) is fixed on the sealing disc (5).
4. The hydraulic opening and closing device with good sealing effect for the hydraulic engineering is characterized in that auxiliary blocks (18) are arranged on one sides, far away from the sealing discs (5), of the two shearing discs (17), the auxiliary blocks (18) are conical, the auxiliary blocks (18) are coaxially arranged with the connecting pipe (4), and one end, with the largest diameter, of each auxiliary block (18) is fixed to the shearing discs (17).
5. The hydraulic opening and closing device with good sealing effect for hydraulic engineering according to claim 1, wherein the fixing rod (6) is provided with a chamfer.
6. The hydraulic opening and closing device with good sealing effect for hydraulic engineering according to claim 1, wherein the joint of the sealing disc (5) and the main body (1) is coated with sealing grease.
7. The hydraulic opening and closing device with good sealing effect for hydraulic engineering according to claim 1, wherein an anti-corrosion zinc coating is arranged on the connecting plate (11).
8. The hydraulic opening and closing device with the good sealing effect for the hydraulic engineering according to claim 1, wherein a water pressure sensor (19) is arranged in the main body (1), the main body (1) is provided with a PLC (programmable logic controller) and an antenna, and the antenna and the water pressure sensor (19) are electrically connected with the PLC.
9. The hydraulic opening and closing device with good sealing effect for the hydraulic engineering according to claim 1, wherein the limiting block (16) is made of rubber.
10. The hydraulic opening and closing device with good sealing effect for hydraulic engineering according to claim 1, wherein the color of the main body (1) is white.
CN201911132280.0A 2019-11-19 2019-11-19 Hydraulic opening and closing device with good sealing effect for hydraulic engineering Withdrawn CN110906010A (en)

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Publication number Priority date Publication date Assignee Title
CN112412591A (en) * 2020-11-20 2021-02-26 安徽充景电子科技有限公司 Engine tail gas waste heat utilization system and waste heat utilization method thereof
CN113339537A (en) * 2021-04-29 2021-09-03 江苏顺达机械设备有限公司 Convenient type bulkhead gate

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Publication number Priority date Publication date Assignee Title
CN2396241Y (en) * 1999-10-27 2000-09-13 吉卫星 Double sluice valve
CN2557771Y (en) * 2002-07-11 2003-06-25 石成江 Combined seal rotary cut-off valve
CN1699801A (en) * 2004-12-23 2005-11-23 潘世永 Double seal valve
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112412591A (en) * 2020-11-20 2021-02-26 安徽充景电子科技有限公司 Engine tail gas waste heat utilization system and waste heat utilization method thereof
CN113339537A (en) * 2021-04-29 2021-09-03 江苏顺达机械设备有限公司 Convenient type bulkhead gate

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