A drilling fluid vibrating screen that is easy to disassemble and clean

Abstract

The present invention relates to the field of vibrating screens, and in particular to a drilling fluid vibrating screen that is easy to disassemble and clean. The technical problem to be solved by the present invention is that the screens are mostly fixed to the screen frame by screws, which has low operating efficiency and leads to high labor and time costs; at the same time, when drilling in different strata, it is impossible to adjust the inclination angle of the screen according to the different contents of drill cuttings and sediment in the drilling fluid. It includes a screen box, one end of the screen box is fixedly connected to a support column, the inside of the screen box is rotatably connected to two screen frames through a rotating shaft, a vibration mechanism is arranged above the screen box, a logging tank is arranged on one side of the screen box, and four shock absorbing mechanisms are arranged on the side of the screen box. The screen is limited between the two screen frames by setting a limiting mechanism, and the limiting mechanism is locked by a locking mechanism while the screen is locked synchronously to prevent the screen from loosening during the vibration of the vibrating screen, thereby affecting the screening effect of the vibrating screen.

Description

Technical Field

[0001] The invention relates to the field of vibrating screens, and in particular to a drilling fluid vibrating screen which is easy to disassemble and clean. Background Art

[0002] Drilling fluid is a general term for various circulating fluids that meet the needs of drilling work with its multiple functions during the drilling process. It is also called drilling mud or drilling flushing fluid. Drilling fluid carries the rock cuttings broken by the drill bit at the bottom of the well to the ground through the circulation system to keep the wellbore clean, help reduce the temperature of the drill bit, reduce the wear of the drill tool, and increase the service life of the drill tool. It can prevent the collapse of the well wall and maintain the stability of the wellbore. The density of the drilling fluid can be designed to balance the formation pressure and prevent dangerous situations such as blowouts.

[0003] The drilling fluid vibrating screen mainly uses high-frequency vibration to separate solid particles from liquid in the drilling fluid. After the drilling fluid vibrating screen has been running for a certain period of time, the screen is prone to clogging, resulting in a decrease in the efficiency of separating solid particles from liquid. In the prior art, the screen is mostly fixed to the screen frame with screws, and the disassembly steps are cumbersome, the operation efficiency is low, and the labor and time costs are high; at the same time, when drilling in different formations, it is impossible to adjust the inclination angle of the screen according to the different content of drill cuttings and sediment in the drilling fluid, thereby affecting the screening effect of the vibrating screen. Summary of the invention

[0004] (1) Technical issues to be resolved

[0005] In order to overcome the shortcomings that the disassembly steps for cleaning the screen are cumbersome, the operation efficiency is low, and the labor and time costs are high; at the same time, when drilling in different strata, the inclination angle of the screen cannot be adjusted according to the different contents of drill cuttings and mud in the drilling fluid, the technical problem to be solved by the present invention is to provide a drilling fluid vibrating screen that is easy to disassemble and clean.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the present invention provides a drilling fluid vibrating screen that is easy to disassemble and clean, including a screen box, a support column is fixedly connected to the interior of the screen box, two screen frames are rotatably connected to the interior of the screen box through a rotating shaft, a vibration mechanism is arranged above the screen box, a logging tank is arranged on one side of the screen box, four shock-absorbing mechanisms are arranged on the side of the screen box, a base is arranged on the lower side of the screen box, square slide grooves are provided on the opposite sides of the two screen frames, a screen is slidably connected in the square slide groove, a locking mechanism is arranged at one end of the screen frame, a limiting mechanism is arranged between the two screen frames and on one side of the screen, an angle adjustment mechanism is arranged on the lower surfaces of the two screen frames, and the angle adjustment mechanism A positioning mechanism is arranged on the side, and the locking mechanism includes a locking block, which is slidably connected to the screen frame, a T-shaped slide groove is provided on the side of the locking block, and a locking shaft is rotatably connected in the T-shaped slide groove, one end of the locking shaft is provided with an annular groove, the locking shaft is slidably connected to the screen frame, and a cross-shaped slide groove is provided on the side of the screen frame. The outer side of the locking shaft is also fixedly connected with a locking block, the cross-section of the locking block is elliptical, and the outer side of the locking shaft is also slidably connected with a locking frame, the locking frame is fixedly connected to the screen frame, a locking spring is sleeved on the outer side of the locking shaft and located between the locking block and the locking frame, and the other end of the locking shaft passes through the locking frame and is fixedly connected with a locking handle.

[0008] Preferably, the limit mechanism includes two limit shafts, a circular through hole is provided at one end of the screen frame, one end of the limit shaft is slidably connected in the circular through hole, a sliding groove is provided at one end of the limit shaft, the locking block is slidably connected in the sliding groove, the outer side of the limit shaft is slidably connected to the limit frame, the limit frame is slidably connected to the screen frame, the outer side of the limit shaft is fixedly connected with a pushing block, the outer side of the limit shaft and the limit spring is fixedly connected between the pushing block and the limit frame, the other end of the limit shaft is hemispherical, the side surface of the limit frame is rotatably connected to the limit handle through a rotating shaft, the outer side surface of the rotating shaft and the inside of the limit frame are fixedly connected to the limit block, and the cross-section of the limit block is elliptical.

[0009] Preferably, the angle adjustment mechanism includes two sliding seats, and the lower surfaces of the two screen frames are provided with T-shaped grooves. The sliding seats are slidably connected in the T-shaped grooves. Two connecting rods are rotatably connected to the two sides of the sliding seats through a rotating shaft. The opposite sides of the connecting rods on both sides are fixedly connected with a linkage shaft, and the other end of the connecting rod is rotatably connected to a linkage seat through a rotating shaft. The cross-section of the linkage seat is T-shaped, and an adjustment block is slidably connected to the outer side of the linkage seat, and the adjustment block is fixedly connected to the inner side of the screen box.

[0010] Preferably, the positioning mechanism includes a shell, which is fixedly connected to the connecting rod, and a button is slidably connected to one end of the shell, and a symmetrical inclined surface is provided at the end of the button located inside the shell, and the middle part of the shell is rotatably connected to two prying plates through a rotating shaft, and the opposite side surfaces of one end of the two prying plates are fixedly connected to positioning springs, and the other ends of the two prying plates are slidably connected to the inclined surface of the button, and the outer side surfaces of one end of the two prying plates are fixedly connected to positioning blocks, and the arcuate side surface of the shell is provided with a square through hole, and the positioning block is slidably connected in the square through hole, and the other side of the positioning block is fixedly connected to two teeth, and the side of the screen box is provided with an elliptical through hole, and a plurality of teeth are fixedly connected on both sides of the elliptical through hole, and the positioning block is meshed with the screen box through the teeth, and the shell is slidably connected in the elliptical through hole.

[0011] Preferably, the vibration mechanism includes a motor bracket, the motor bracket is fixedly connected to the outer side of the screen box, the upper surface of the motor bracket is fixedly connected to a vibration motor, the output end of the vibration motor is fixedly connected to a main gear, the side of the screen box is fixedly connected to two connecting plates, the other end of the connecting plate is rotatably connected to a transmission shaft, the outer side of the transmission shaft is fixedly connected to a sub-gear, the main gear is meshingly connected to the sub-gear, and the side of the screen box is also fixedly connected to a protective cover.

[0012] Preferably, the vibration mechanism also includes two active bevel gears, the active bevel gear is fixedly connected to the end of the transmission shaft, a driven bevel gear is arranged on the side of the active bevel gear, the active bevel gear is meshingly connected with the driven bevel gear, a vibration shaft is fixedly connected to the side of the driven bevel gear, the vibration shaft is rotatably connected to the protective cover and the screen box, a plurality of eccentric wheels are fixedly connected to the outside of the vibration shaft, four fixed plates are rotatably connected to the outside of the vibration shaft, the other end of the fixed plate is fixedly connected to an axle box, and the axle box is fixedly connected to the inner side of the screen box.

[0013] Preferably, the shock absorbing mechanism includes a shock absorbing plate, which is fixedly connected to the screen box, a shock absorbing sleeve is fixedly connected to the lower surface of the shock absorbing plate, and the shock absorbing sleeve is also fixedly connected to the upper surface of the base, annular grooves are provided on opposite sides of the two shock absorbing sleeves, a shock absorbing spring is slidably connected in the annular groove, a shock absorbing shaft is slidably connected inside the upper shock absorbing sleeve, the shock absorbing shaft is threadedly connected to the shock absorbing plate, and a torsion block is fixedly connected to the upper end of the shock absorbing shaft.

[0014] Preferably, the logging tank includes an elevated frame, which is fixedly connected to the upper surface of the base, and the upper surface of the elevated frame is fixedly connected to a tank body, and a liquid inlet is provided on the upper surface of the tank body, and the liquid inlet is circular. Two stirring wheels are rotatably connected to the inside of the tank body, a guide plate is fixedly connected to the lower side of the inside of the tank body, and a liquid outlet groove is fixedly connected to the side of the tank body, and a square hole is provided on the side of the tank body at a position corresponding to the liquid outlet groove.

[0015] Preferably, a liquid storage box is fixedly connected to the lower surface of the screen box, and a liquid discharge pipe is fixedly connected to the middle of the liquid storage box.

[0016] Preferably, an electric control module is fixedly connected to the upper surface of the base, and four hanging seats are fixedly connected to the side surfaces of the base.

[0017] (3) Beneficial effects

[0018] 1. The screen is limited between two screen frames by setting a limit mechanism, and the limit mechanism is locked by a locking mechanism while the screen is locked synchronously to prevent the screen from loosening during the vibration of the vibrating screen, thereby affecting the screening effect of the vibrating screen. When the screen needs to be disassembled and cleaned, the locking mechanism can be quickly released by turning the locking handle, so that the screen can be quickly disassembled and cleaned, which optimizes the disassembly steps of the screen and improves the cleaning efficiency of the screen;

[0019] 2. By setting the positioning mechanism and the angle adjustment mechanism, the inclination angle of the screen can be adjusted by the angle adjustment mechanism according to the different contents of drill cuttings and sediment in the drilling fluid, and the screen with the adjusted angle can be positioned by the positioning mechanism to prevent the screen from changing its angle again, thereby affecting the screening effect of the screen. The adjustment of the installation angle of the screen by the angle adjustment mechanism can effectively improve the separation efficiency of solid particles and liquids, and prevent sediment accumulation from clogging the screen;

[0020] 3. By setting up a vibration mechanism, the vibration mechanism drives the screen box to vibrate, the screen box vibration drives the screen frame to vibrate, and the screen frame vibration drives the screen mesh to vibrate, so as to separate the solid particles from the liquid in the drilling fluid, so that the drilling fluid can be recycled, which helps to reduce operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the screen box structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the limiting mechanism of the present invention;

[0024] Figure 4 It is a schematic diagram of the locking mechanism structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the angle adjustment mechanism structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the positioning mechanism structure of the present invention;

[0027] Figure 7 is a cross-sectional view of the housing of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the vibration mechanism of the present invention;

[0029] Fig. 9 It is a schematic diagram of the structure of the shock absorbing mechanism of the present invention;

[0030] Fig.10 It is a schematic diagram of the structure of the logging tank of the present invention.

[0031] The markings in the attached drawings are: 1-logging tank, 101-tank body, 102-liquid inlet, 103-stirring wheel, 104-guide plate, 105-liquid outlet trough, 106-elevation frame, 2-vibration mechanism, 201-vibration motor, 202-motor bracket, 203-protective cover, 204-main gear, 205-sub-gear, 206-transmission shaft, 207-connecting plate, 208-driven bevel gear, 209-active bevel gear, 210-vibration shaft, 211-eccentric wheel, 212-fixed plate, 213-axle box, 3-screen box, 301-support column, 4-screen, 5-liquid accumulation box, 501-drain pipe, 6-shock absorption mechanism, 601-shock absorption plate, 602-shock absorption shaft, 603-shock absorption sleeve, 604-shock absorption spring, 605-shock absorption spring, 606-shock absorption spring, 6 ... -Twisting block, 7-electric control module, 8-locking mechanism, 801-locking handle, 802-locking shaft, 803-locking frame, 804-locking spring, 805-locking block, 806-locking block, 9-angle adjustment mechanism, 901-sliding seat, 902-connecting rod, 903-linkage shaft, 904-linkage seat, 905-adjusting block, 10-positioning mechanism, 1001-button, 1002-housing, 1003-prying plate, 1004-positioning spring, 1005-positioning block, 11-limiting mechanism, 1101-limiting handle, 1102-limiting block, 1103-limiting shaft, 1104-pushing block, 1105-limiting spring, 1106-limiting frame, 12-screen frame, 13-base, 14-lifting seat. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] Example 1

[0034] A drilling fluid vibrating screen that is easy to disassemble and clean, such as Figure 1 , Figure 2 As shown, it includes a screen box 3, and a support column 301 is fixedly connected to the inside of the screen box 3. By setting the support column 301, the strength of the screen box 3 is ensured to prevent it from being deformed by force. The inside of the screen box 3 is rotatably connected to two screen frames 12 through a rotating shaft. A vibration mechanism 2 is arranged above the screen box 3. By setting the vibration mechanism 2, solid particles and liquid in the drilling fluid are separated, so that the drilling fluid can be recycled. A logging tank 1 is arranged on one side of the screen box 3. By setting the logging tank 1, the drilling fluid extracted from the well is decelerated and the particles therein are broken up. Four shock absorbing mechanisms 6 are arranged on the side of the screen box 3. By setting the shock absorbing mechanism 6, the vibration of the screen box 3 is absorbed and the screen box 3 is pushed to reset. A base 13 is arranged on the lower side of the screen box 3, and two Square slide grooves are provided on the opposite sides of the screen frame 12, and a screen 4 is slidably connected in the square slide groove. By setting the screen 4, the solid particles in the drilling fluid are separated from the liquid. A locking mechanism 8 is provided at one end of the screen frame 12, and a limiting mechanism 11 is provided between the two screen frames 12 and on one side of the screen 4. By providing the locking mechanism 8 and the limiting mechanism 11, the disassembly steps of the screen 4 are optimized and the cleaning efficiency of the screen 4 is improved. An angle adjustment mechanism 9 is provided on the lower surfaces of the two screen frames 12, and a positioning mechanism 10 is provided on the side of the angle adjustment mechanism 9. By providing the angle adjustment mechanism 9 and the positioning mechanism 10 and adjusting the inclination angle of the screen 4, the separation efficiency of the solid particles in the drilling fluid and the liquid is improved, and the accumulation of mud and sand to block the screen 4 is prevented.

[0035] like Figure 4 As shown, the locking mechanism 8 includes a locking block 806, the cross-section of the locking block 806 is rectangular, the locking block 806 is slidably connected to the screen frame 12, a T-shaped slide groove is provided on the side of the locking block 806, a locking shaft 802 is rotatably connected in the T-shaped slide groove, one end of the locking shaft 802 is provided with an annular groove, the T-shaped slide groove provided on the side of the locking block 806 cooperates with the annular groove provided at the end of the locking shaft 802 so that the end of the locking shaft 802 can be rotatably connected inside the locking block 806, the locking shaft 802 is slidably connected to the screen frame 12, the side of the screen frame 12 is provided with a cross-shaped slide groove, and the cross-shaped The longitudinal slide groove in the slide groove is deeper than the transverse slide groove. A locking block 805 is fixedly connected to the outer side of the locking shaft 802. The cross-section of the locking block 805 is elliptical. The shapes of the longitudinal slide groove and the transverse slide groove in the cross-shaped slide groove match the shape of the locking block 805. A locking frame 803 is also slidably connected to the outer side of the locking shaft 802. The locking frame 803 is fixedly connected to the screen frame 12. A locking spring 804 is sleeved on the outer side of the locking shaft 802 and located between the locking block 805 and the locking frame 803. The other end of the locking shaft 802 passes through the locking frame 803 and is fixedly connected to a locking handle 801.

[0036] like Figure 3 , Figure 4 As shown, the limiting mechanism 11 includes two limiting shafts 1103, a circular through hole is provided at one end of the screen frame 12, one end of the limiting shaft 1103 is slidably connected in the circular through hole, a sliding groove is provided at one end of the limiting shaft 1103, and the locking block 806 is slidably connected in the sliding groove, the outer side of the limiting shaft 1103 is slidably connected to the limiting frame 1106, the limiting frame 1106 is slidably connected to the screen frame 12, the outer side of the limiting shaft 1103 is fixedly connected with a pushing block 1104, the outer side of the limiting shaft 1103 and fixedly connected with a limiting spring 1105 between the pushing block 1104 and the limiting frame 1106, the other end of the limiting shaft 1103 is hemispherical, and the side surface of the limiting frame 1106 is rotatably connected to the limiting handle 1101 through a rotating shaft, and the outer side surface of the rotating shaft and the inside of the limiting frame 1106 are fixedly connected to the limiting block 1102, and the cross-section of the limiting block 1102 is elliptical.

[0037] like Figure 5 , Figure 6 As shown, the angle adjustment mechanism 9 includes two sliding seats 901, and a T-shaped groove is provided on the lower surface of the two screen frames 12. The sliding seat 901 is slidably connected in the T-shaped groove. Two connecting rods 902 are rotatably connected to the sliding seat 901 on both sides through a rotating shaft. The opposite sides of the two connecting rods 902 on both sides are fixedly connected with a linkage shaft 903, and the other end of the connecting rod 902 is rotatably connected to a linkage seat 904 through a rotating shaft. The cross-section of the linkage seat 904 is T-shaped, and an adjustment block 905 is slidably connected to the outer side of the linkage seat 904. A T-shaped groove is provided on the upper end surface of the adjustment block 905. The adjustment block 905 is slidably connected to the linkage seat 904 through the T-shaped groove, and the adjustment block 905 is fixedly connected to the inner side of the screen box 3, and the adjustment block 905 is set at a certain angle.

[0038] like Figure 7 As shown, the positioning mechanism 10 includes a housing 1002, the housing 1002 is fixedly connected to the outer side of the connecting rod 902, one end of the housing 1002 is slidably connected to a button 1001, the end of the button 1001 located inside the housing 1002 is provided with a symmetrical inclined surface, the middle part of the housing 1002 is rotatably connected to two prying plates 1003 through a rotating shaft, the opposite side of one end of the two prying plates 1003 is fixedly connected to a positioning spring 1004, the other end of the two prying plates 1003 is connected to the inclined surface of the button 1001 The outer side surfaces of one end of the two prying plates 1003 are fixedly connected with positioning blocks 1005, the arc-shaped side surfaces of the outer shell 1002 are provided with square through holes, the positioning blocks 1005 are slidingly connected in the square through holes, the other side of the positioning blocks 1005 is fixedly connected with two teeth, the side surfaces of the screen box 3 are provided with elliptical through holes, the two sides of the elliptical through holes are fixedly connected with a plurality of teeth, the positioning blocks 1005 are meshed with the teeth and the outer shell 1002 is slidingly connected in the elliptical through holes on the sides of the screen box 3.

[0039] like Figure 8 As shown, the vibration mechanism 2 includes a motor bracket 202, the motor bracket 202 is fixedly connected to the outer side of the screen box 3, the upper surface of the motor bracket 202 is fixedly connected to the vibration motor 201, the output end of the vibration motor 201 is fixedly connected to the main gear 204, the side of the screen box 3 is fixedly connected to two connecting plates 207, the other end of the connecting plate 207 is rotatably connected to the transmission shaft 206, the outer side of the transmission shaft 206 is fixedly connected to the sub-gear 205, the main gear 204 is meshed with the sub-gear 205, the side of the screen box 3 is also fixedly connected to the protective cover 203, the transmission shaft 206 Both ends of the vibration shaft 210 are fixedly connected with driving bevel gears 209, and a driven bevel gear 208 is arranged on the side of the driving bevel gear 209. The driving bevel gear 209 is meshed with the driven bevel gear 208. A vibration shaft 210 is fixedly connected with the side of the driven bevel gear 208. The vibration shaft 210 is rotatably connected to the protective cover 203 and the screen box 3. A plurality of eccentric wheels 211 are fixedly connected to the outside of the vibration shaft 210. Four fixed plates 212 are rotatably connected to the outside of the vibration shaft 210. The other end of the fixed plate 212 is fixedly connected with an axle box 213, and the axle box 213 is fixedly connected to the inner side of the screen box 3.

[0040] like Fig. 9 As shown, the shock absorbing mechanism 6 includes a shock absorbing plate 601, which is fixedly connected to the screen box 3, a shock absorbing sleeve 603 is fixedly connected to the lower surface of the shock absorbing plate 601, and a shock absorbing sleeve 603 is also fixedly connected to the upper surface of the base 13, an annular groove is provided on the opposite sides of the two shock absorbing sleeves 603, a shock absorbing spring 604 is slidably connected in the annular groove, a shock absorbing shaft 602 is slidably connected inside the upper shock absorbing sleeve 603, the shock absorbing shaft 602 is threadedly connected to the shock absorbing plate 601, and a torsion block 605 is fixedly connected to the upper end of the shock absorbing shaft 602, and the cross-section of the torsion block 605 is hexagonal.

[0041] like Fig.10 As shown, the logging tank 1 includes an elevated frame 106, which is fixedly connected to the upper surface of the base 13, and the upper surface of the elevated frame 106 is fixedly connected to the tank body 101. The upper surface of the tank body 101 is provided with a liquid inlet 102, and the liquid inlet 102 is circular. Two stirring wheels 103 are rotatably connected to the inside of the tank body 101, and a guide plate 104 is fixedly connected to the lower side of the inside of the tank body 101. A liquid outlet trough 105 is fixedly connected to the side of the tank body 101, and a square hole is provided on the side of the tank body 101 and at a position corresponding to the liquid outlet trough 105.

[0042] like Figure 1As shown, the lower surface of the screen box 3 is fixedly connected to a liquid storage box 5, through which the liquid separated from the drilling fluid is collected, the middle part of the liquid storage box 5 is fixedly connected to a liquid discharge pipe 501, through which the liquid separated from the drilling fluid is discharged to a designated position, the upper surface of the base 13 is fixedly connected to an electric control module 7, through which the vibration frequency of the vibration mechanism 2 can be controlled, and the side of the base 13 is fixedly connected to four hoisting seats 14, by setting the hoisting seats 14, the equipment can be hoisted to a designated position by a crane.

[0043] Example 2

[0044] Working principle: When the equipment is used, the lifting seat 14 is first used to place the equipment at the designated position, and then the positioning mechanism 10 is used to drive the angle adjustment mechanism 9 to adjust the screen 4 to a suitable angle according to the content of drill cuttings and sediment in the drilling fluid, and then the equipment is started through the electronic control module 7, and the drilling fluid flows into the logging tank 1 from the liquid inlet 102, and the drilling fluid is decelerated and dispersed by the stirring wheel 103, and then enters the screen box 3 from the liquid outlet 105. The drilling fluid enters the screen box 3, and the vibration mechanism 2 drives the screen box 3 to vibrate, and the vibration of the screen box 3 drives the screen frame 12 to vibrate, and the vibration of the screen frame 12 drives the screen 4 to vibrate, and the screen 4 vibrates to remove the solids in the drilling fluid. The particles are separated from the liquid, and the liquid falls into the liquid storage box 5 and is discharged to the specified position through the drain pipe 501. The solid particles roll down to the specified position along the inclination angle of the screen 4. The shock absorbing mechanism 6 absorbs the vibration of the screen box 3 and pushes the screen box 3 to reset. After the equipment has been running for a certain period of time, the screen 4 needs to be disassembled and cleaned. First, the locking mechanism 8 on the limiting mechanism 11 is released. After the limiting mechanism 11 is removed, the screen 4 is pulled out from the screen frame 12. After the screen 4 is cleaned, it is inserted into the screen frame 12, the limiting mechanism 11 is installed, and the locking mechanism 8 is used to lock the limiting mechanism 11. At this time, the equipment can be started to continue the separation work.

[0045] When the positioning mechanism 10 is used to drive the angle adjustment mechanism 9 to adjust the angle of the screen 4, the button 1001 is pushed inward, and the button 1001 moves inward to push one end of the two prying plates 1003 to move in the opposite direction. The opposite movement of one end of the two prying plates 1003 drives the other end of the two prying plates 1003 to move toward each other. The other ends of the two prying plates 1003 move toward each other to compress the positioning spring 1004. The other ends of the two prying plates 1003 move toward each other to pull the two positioning blocks 1005 to move toward each other. The two positioning blocks 1005 move toward each other to disengage the teeth of the screen box 3, and the toggle button 1001 slides to one side. The button 1001 slides to one side to drive the housing 1002 to move One side slides, the shell 1002 slides to one side, driving the connecting rod 902 to slide to one side, the connecting rod 902 drives the linkage shaft 903 to slide to one side, the linkage shaft 903 drives the connecting rod 902 on the other side to slide to one side, the connecting rods 902 on both sides slide to one side, driving the sliding seats 901 and linkage seats 904 at both ends to slide to one side, the linkage seat 904 slides to one side in the T-shaped slide groove of the adjusting block 905, and the adjusting block 905 is tilted at a certain angle. Under the action of the adjusting block 905, the screen 4 tilts downward at a certain angle, release the button 1001, and the positioning spring 1004 releases the pressure to push the positioning block 1005 to engage with the screen box 3. At this time, the inclination angle adjustment of the screen 4 is completed.

[0046] When the vibration mechanism 2 drives the screen box 3 to vibrate, the vibration motor 201 is started, and the output end of the vibration motor 201 drives the main gear 204 to rotate, and the main gear 204 is meshed with the sub gear 205. The rotation of the main gear 204 drives the sub gear 205 to rotate, and the rotation of the sub gear 205 drives the transmission shaft 206 to rotate. The rotation of the transmission shaft 206 drives the two active bevel gears 209 to rotate, and the active bevel gear 209 is meshed with the driven bevel gear 208. The rotation of the active bevel gear 209 drives the driven bevel gear 208 to rotate, and the rotation of the driven bevel gear 208 drives the vibration shaft 210 to rotate. The rotation of the vibration shaft 210 drives multiple eccentric wheels 211 to rotate with the vibration shaft 210 as the center of the circle. The eccentric wheels 211 rotate with the vibration shaft 210 as the center of the circle to drive the shaft box 213 to vibrate, and the vibration of the shaft box 213 drives the screen box 3 to vibrate, and the vibration of the screen box 3 separates the solid particles from the liquid in the drilling fluid.

[0047] When the shock absorbing mechanism 6 absorbs the vibration of the screen box 3, the vibration of the screen box 3 drives the shock absorbing plate 601 to reciprocate up and down, and the reciprocating up and down motion of the shock absorbing plate 601 drives the upper shock absorbing sleeve 603 to reciprocate up and down, and the upper shock absorbing sleeve 603 reciprocates up and down to compress the shock absorbing spring 604. When the shock absorbing mechanism 6 pushes the screen box 3 to reset, the shock absorbing spring 604 contracts and extends to synchronously push the upper shock absorbing sleeve 603 to reciprocate up and down, and the upper shock absorbing sleeve 603 reciprocates up and down to drive the shock absorbing plate 601 to reciprocate up and down, and the shock absorbing plate 601 reciprocates up and down to drive the screen box 3 to vibrate. When it is needed When the equipment is to be repaired or moved, the screen box 3 needs to be fixed to prevent it from moving. The twisting block 605 is rotated with a wrench. The twisting block 605 drives the shock-absorbing shaft 602 to rotate downward. The shock-absorbing shaft 602 rotates downward and abuts against the lower shock-absorbing sleeve 603. At this time, the shock-absorbing mechanism 6 is locked, which is convenient for the operator to move and repair. When the shock-absorbing mechanism 6 is unlocked, the twisting block 605 is rotated in the opposite direction with a wrench. The twisting block 605 drives the shock-absorbing shaft 602 to rotate upward. The shock-absorbing shaft 602 rotates upward and disengages from the lower shock-absorbing sleeve 603. At this time, the lock of the shock-absorbing mechanism 6 is released.

[0048] When the locking mechanism 8 is unlocked from the limiting mechanism 11, the locking handle 801 is pulled, and the locking handle 801 moves outward, driving the locking shaft 802 to move outward. The sliding groove provided on the limiting shaft 1103 leaves room for the locking block 806 to move outward, and the locking shaft 802 moves outward to drive the locking block 805 to disengage from the transverse groove of the cross-shaped sliding groove, and the locking handle 801 is rotated from the transverse direction to the longitudinal direction, and then the locking handle 801 is released, and the locking spring 804 releases the pressure to push the locking block 805 to move inward, and the locking block 805 moves inward and slides into the longitudinal groove of the cross-shaped sliding groove, and the locking block 805 moves inward. The locking shaft 802 is driven to move inward, and the inward movement of the locking shaft 802 pushes the locking block 806 to disengage from the limit shaft 1103, and the limit handle 1101 is rotated 90 degrees to the longitudinal direction. The limit handle 1101 rotates and drives the limit block 1102 to rotate 90 degrees with the rotating shaft as the center. The limit spring 1105 releases the pressure and drives the two push blocks 1104 to move toward each other. The two push blocks 1104 move toward each other and drive the two limit shafts 1103 to move toward each other, and the limit shaft 1103 is disengaged from the screen frame 12. At this time, the limit mechanism 11 is removed, and the screen 4 can be pulled out of the screen frame 12 for cleaning.

[0049] When the locking mechanism 8 is used to lock the limiting mechanism 11, after the screen 4 is inserted into the screen frame 12, the limiting mechanism 11 is pushed between the two screen frames 12, and the limiting handle 1101 is rotated 90 degrees to the horizontal direction. The limiting handle 1101 rotates to drive the limiting block 1102 to rotate 90 degrees with the rotating shaft as the center. The limiting block 1102 pushes the two limiting shafts 1103 to move in the opposite direction. The two limiting shafts 1103 move in the opposite direction to drive the two pushing blocks 1104 to move in the opposite direction. The two pushing blocks 1104 move in the opposite direction to compress the limiting spring 1105. The two limiting shafts 1103 move in the opposite direction and are inserted into the circular through hole at the end of the screen frame 12. At this time, the locking handle 801 is pulled to lock the handle The outward movement of 801 drives the locking shaft 802 to move outward, and the outward movement of the locking shaft 802 drives the locking block 805 to disengage from the longitudinal groove of the cross-shaped slide groove, rotating the locking handle 801 from the longitudinal direction to the transverse direction, and then releasing the locking handle 801, the locking spring 804 releases the pressure to push the locking block 805 to move inward, and the protrusion moves inward and slides into the transverse groove in the cross-shaped slide groove. At the same time, the locking shaft 802 drives the locking block 806 to get into the slide groove at the end of the limiting shaft 1103. At this time, the locking mechanism 8 locks the limiting mechanism 11, and the screen 4 can be locked inside the screen frame 12 through the cooperation of the locking block 806 and the limiting shaft 1103. At this time, the equipment can be started to continue the screening work.

[0050] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A drilling fluid vibrating screen that is easy to disassemble and clean, characterized in that: The invention comprises a screen box (3), wherein a support column (301) is fixedly connected to the interior of the screen box (3), two screen frames (12) are rotatably connected to the interior of the screen box (3) via a rotating shaft, a vibration mechanism (2) is arranged above the screen box (3), a logging tank (1) is arranged on one side of the screen box (3), four shock absorbing mechanisms (6) are arranged on the side of the screen box (3), a base (13) is arranged on the lower side of the screen box (3), square slide grooves are provided on the opposite sides of the two screen frames (12), a screen (4) is slidably connected in the square slide groove, a locking mechanism (8) is arranged at one end of the screen frame (12), a limiting mechanism (11) is arranged between the two screen frames (12) and on one side of the screen (4), an angle adjustment mechanism (9) is arranged on the lower surface of the two screen frames (12), a positioning mechanism (10) is arranged on the side of the angle adjustment mechanism (9), the locking mechanism (8) comprises a locking block (806), the The locking block (806) is slidably connected to the screen frame (12), a T-shaped groove is provided on the side of the locking block (806), a locking shaft (802) is rotatably connected in the T-shaped groove, an annular groove is provided at one end of the locking shaft (802), the locking shaft (802) is slidably connected to the screen frame (12), a cross-shaped groove is provided on the side of the screen frame (12), a locking block (805) is fixedly connected to the outer side of the locking shaft (802), and the locking The cross section of the block (805) is elliptical, the outer side of the locking shaft (802) is also slidably connected to a locking frame (803), the locking frame (803) is fixedly connected to the screen frame (12), a locking spring (804) is sleeved on the outer side of the locking shaft (802) and located between the locking block (805) and the locking frame (803), and the other end of the locking shaft (802) passes through the locking frame (803) and is fixedly connected to a locking handle (801); The limiting mechanism (11) includes two limiting shafts (1103), one end of the screen frame (12) is provided with a circular through hole, one end of the limiting shaft (1103) is slidably connected in the circular through hole, one end of the limiting shaft (1103) is provided with a sliding groove, the locking block (806) is slidably connected in the sliding groove, the outer side of the limiting shaft (1103) is slidably connected to the limiting frame (1106), the limiting frame (1106) is slidably connected to the screen frame (12), and the outer side of the limiting shaft (1103) is fixedly connected A pushing block (1104) is provided, a limiting spring (1105) is fixedly connected to the outside of the limiting shaft (1103) and located between the pushing block (1104) and the limiting frame (1106), the other end of the limiting shaft (1103) is hemispherical, the side surface of the limiting frame (1106) is rotatably connected to the limiting handle (1101) via a rotating shaft, the outer side surface of the rotating shaft and located inside the limiting frame (1106) is fixedly connected to the limiting block (1102), and the cross-section of the limiting block (1102) is elliptical.

2. A drilling fluid vibrating screen that is easy to disassemble and clean according to claim 1, characterized in that: The angle adjustment mechanism (9) comprises two sliding seats (901), the lower surfaces of the two screen frames (12) are provided with T-shaped slide grooves, the sliding seats (901) are slidably connected in the T-shaped slide grooves, two connecting rods (902) are rotatably connected to the two sides of the sliding seat (901) via a rotating shaft, the opposite sides of the connecting rods (902) on both sides are fixedly connected to a linkage shaft (903), the other end of the connecting rod (902) is rotatably connected to a linkage seat (904) via a rotating shaft, the cross section of the linkage seat (904) is T-shaped, the outer side of the linkage seat (904) is slidably connected to an adjustment block (905), and the adjustment block (905) is fixedly connected to the inner side of the screen box (3).

3. The drilling fluid vibrating screen that is easy to disassemble and clean according to claim 2, characterized in that: The positioning mechanism (10) comprises a housing (1002), the housing (1002) being fixedly connected to the connecting rod (902), one end of the housing (1002) being slidably connected to a button (1001), an end of the button (1001) located inside the housing (1002) being provided with a symmetrical inclined surface, the middle portion of the housing (1002) being rotatably connected to two prying plates (1003) via a rotating shaft, the opposite side surfaces of one end of the two prying plates (1003) being fixedly connected to a positioning spring (1004), the other ends of the two prying plates (1003) being connected to the button ( 1001) is slidably connected with an inclined surface, the outer side surfaces of one end of the two prying plates (1003) are fixedly connected with a positioning block (1005), the arc-shaped side surface of the shell (1002) is provided with a square through hole, the positioning block (1005) is slidably connected in the square through hole, the other side of the positioning block (1005) is fixedly connected with two teeth, the side surface of the screen box (3) is provided with an elliptical through hole, the two sides of the elliptical through hole are fixedly connected with a plurality of teeth, the positioning block (1005) and the screen box (3) are meshed with the teeth, and the shell (1002) is slidably connected in the elliptical through hole.

4. The drilling fluid vibrating screen that is easy to disassemble and clean according to claim 3, characterized in that: The vibration mechanism (2) comprises a motor bracket (202), the motor bracket (202) being fixedly connected to the outer side surface of the screen box (3), the upper surface of the motor bracket (202) being fixedly connected to a vibration motor (201), the output end of the vibration motor (201) being fixedly connected to a main gear (204), the side surface of the screen box (3) being fixedly connected to two connecting plates (207), the other end of the connecting plate (207) being rotatably connected to a transmission shaft (206), the outer side of the transmission shaft (206) being fixedly connected to a sub-gear (205), the main gear (204) being meshingly connected to the sub-gear (205), and the side surface of the screen box (3) being fixedly connected to a protective cover (203).

5. The drilling fluid vibrating screen that is easy to disassemble and clean according to claim 4, characterized in that: The vibration mechanism (2) further comprises two active bevel gears (209), the active bevel gears (209) being fixedly connected to the ends of the transmission shaft (206), a driven bevel gear (208) being arranged on the side of the active bevel gear (209), the active bevel gear (209) being meshingly connected to the driven bevel gear (208), a vibration shaft (210) being fixedly connected to the side of the driven bevel gear (208), the vibration shaft (210) being rotationally connected to the protective cover (203) and the screen box (3), a plurality of eccentric wheels (211) being fixedly connected to the outside of the vibration shaft (210), four fixed plates (212) being rotationally connected to the outside of the vibration shaft (210), the other end of the fixed plate (212) being fixedly connected to an axle box (213), and the axle box (213) being fixedly connected to the inner side of the screen box (3).

6. The drilling fluid vibrating screen that is easy to disassemble and clean according to claim 5, characterized in that: The shock absorbing mechanism (6) comprises a shock absorbing plate (601), the shock absorbing plate (601) is fixedly connected to the screen box (3), the lower surface of the shock absorbing plate (601) is fixedly connected to a shock absorbing sleeve (603), the upper surface of the base (13) is also fixedly connected to the shock absorbing sleeve (603), an annular groove is provided on opposite sides of the two shock absorbing sleeves (603), a shock absorbing spring (604) is slidably connected in the annular groove, a shock absorbing shaft (602) is slidably connected inside the upper shock absorbing sleeve (603), the shock absorbing shaft (602) is threadedly connected to the shock absorbing plate (601), and a torsion block (605) is fixedly connected to the upper end of the shock absorbing shaft (602).

7. The drilling fluid vibrating screen that is easy to disassemble and clean according to claim 6, characterized in that: The logging tank (1) comprises an elevated frame (106), the elevated frame (106) being fixedly connected to the upper surface of the base (13), the upper surface of the elevated frame (106) being fixedly connected to a tank body (101), the upper surface of the tank body (101) being provided with a liquid inlet (102), the liquid inlet (102) being circular, the interior of the tank body (101) being rotatably connected to two stirring wheels (103), the lower side of the interior of the tank body (101) being fixedly connected to a guide plate (104), the side of the tank body (101) being fixedly connected to a liquid outlet groove (105), and a square hole being provided on the side of the tank body (101) and at a position corresponding to the liquid outlet groove (105).

8. The drilling fluid vibrating screen that is easy to disassemble and clean according to claim 7, characterized in that: The lower surface of the screen box (3) is fixedly connected to a liquid storage box (5), and the middle part of the liquid storage box (5) is fixedly connected to a liquid discharge pipe (501).

9. The drilling fluid vibrating screen that is easy to disassemble and clean according to claim 8, characterized in that: An electric control module (7) is fixedly connected to the upper surface of the base (13), and four hanging seats (14) are fixedly connected to the side surfaces of the base (13).

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