Petroleum drilling vibrating screen lifting device

Abstract

The utility model relates to the technical field of vibrating screens, and provides a petroleum drilling vibrating screen lifting device which comprises a base, a lifting frame is hinged to one end of the top of the base, two air cylinders are hinged to the other end of the top of the base, and the output ends of the two air cylinders are hinged to the bottom of the lifting frame. A vibrating screen is fixedly mounted on the inner side of the lifting frame, a cleaning mechanism is mounted at the top of the lifting frame and comprises a mounting frame, movable seats are fixedly mounted at the two ends of the bottom of the mounting frame, the two movable seats are slidably connected with the two ends of the top of the lifting frame respectively, and an elastic part is fixedly mounted at the bottom of the mounting frame. A scraper is fixedly installed at the bottom of the elastic piece, and the bottom of the scraper is attached to the top face of the vibrating screen. Automatic cleaning of the vibrating screen is achieved, manual cleaning is not needed, and the cleaning efficiency of the vibrating screen is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a lifting device for a vibrating screen for oil drilling. Background Art

[0002] The drilling fluid vibrating screen is a first-level solid control device used in the drilling mud purification system. The drilling fluid vibrating screen is widely used in oil drilling, trenchless horizontal directional crossing coalbed methane drilling, shale gas drilling, river silt environmental protection and other mud purification and treatment fields. During the use of the drilling fluid vibrating screen, some of the debris after screening remains on the screen. In order to avoid the accumulation of debris and affect the use of the vibrating screen, workers need to use hand-held tools to clean up the debris on the screen, which is more troublesome;

[0003] In this regard, the Chinese patent publication number CN218961992U discloses "a petroleum drilling vibrating screen lifting device, comprising a base, bearing seats are fixed on both sides of the base, connecting columns are fixed in the two bearing seats, a drilling fluid vibrating screen is fixed between the two connecting columns, a support seat is fixed on the top of the base, two first hydraulic cylinders are arranged between the support seat and the drilling fluid vibrating screen, supports are fixed on the piston rods of the two first hydraulic cylinders, rollers are rotatably connected in the two supports, two tension springs are arranged on the support seat, and the top ends of the two tension springs are hung on the drilling fluid vibrating screen".

[0004] This patent controls the piston rod of the "first hydraulic cylinder" to drive two "supports" and two "rollers" to move upward, so as to lift up one end of the "drilling fluid vibrating screen" away from the discharge port, which makes the screen of the "drilling fluid vibrating screen" tilted, which is beneficial to the discharge of debris on the screen; wherein, after the screen of the "drilling fluid vibrating screen" is tilted, the debris on the screen slides off the screen under the action of its own gravity, but some debris may be stuck on the screen holes of the screen and cannot slide off, which requires manual cleaning, and the speed at which the debris slides off by itself is too slow, so the cleaning efficiency of the debris on the "drilling fluid vibrating screen" is low. Utility Model Content

[0005] The utility model provides a lifting device for a petroleum drilling vibrating screen, which solves the problem of low cleaning efficiency.

[0006] The technical solution of the utility model is as follows: a lifting device for a vibrating screen for oil drilling comprises a base, one end of the top of the base is hinged with a lifting frame, the other end of the top of the base is hinged with two cylinders, the output ends of the two cylinders are hinged with the bottom of the lifting frame; a vibrating screen is fixedly installed on the inner side of the lifting frame, a cleaning mechanism is installed on the top of the lifting frame, the cleaning mechanism comprises a mounting frame, movable seats are fixedly installed at both ends of the bottom of the mounting frame, the two movable seats are respectively slidably connected to the two ends of the top of the lifting frame, an elastic member is fixedly installed at the bottom of the mounting frame, a scraper is fixedly installed at the bottom of the elastic member, and the bottom of the scraper is in contact with the top surface of the vibrating screen.

[0007] Preferably, self-locking universal wheels are rotatably mounted on the four corners of the bottom of the base.

[0008] Preferably, both ends of the top of the lifting frame are provided with sliding grooves matching the movable seats, and the two movable seats slide along the corresponding sliding grooves.

[0009] Preferably, a rotating shaft is rotatably mounted on the inner side of the mounting frame, rolling gears are fixedly mounted on both ends of the rotating shaft, and the two rolling gears are located on both sides of the lifting frame.

[0010] Preferably, fixing plates are fixedly installed on both sides of the lifting frame, guide tooth plates are fixedly installed on the tops of the two fixing plates, and the two rolling gears are respectively meshed with the two guide tooth plates.

[0011] Preferably, the fixing plate is an L-shaped structure.

[0012] Preferably, the length of the guide tooth plate is equal to the length of the lifting frame.

[0013] Preferably, a motor is fixedly mounted on the top of the mounting frame, a first bevel gear is fixedly mounted on the output shaft of the motor, a second bevel gear is fixedly mounted on the rotating shaft, and the second bevel gear is meshed with the first bevel gear.

[0014] Preferably, the elastic member comprises a sleeve and a sleeve rod; the sleeve is fixedly mounted on the bottom of the mounting frame, the top end of the sleeve rod is inserted into the sleeve, and the bottom end of the sleeve rod is fixedly connected to the scraper.

[0015] Preferably, a guide block is slidably mounted on the inner side of the sleeve, the bottom of the guide block is fixedly connected to the sleeve rod, and a spring is fixedly mounted on the top of the guide block.

[0016] The technical effects and advantages of the utility model are as follows: by starting the motor to rotate the first bevel gear, the second bevel gear is rotated synchronously, the rotating shaft is rotated synchronously, and the two rolling gears are rotated synchronously, so that the two rolling gears can roll along the corresponding guide tooth plates, and then the entire mounting frame is translated along the length direction of the lifting frame, so that the scraper slides along the top surface of the vibrating screen, and the scraper can clean up the debris stuck on the vibrating screen. The whole process realizes automatic cleaning of the vibrating screen without manual cleaning, which greatly improves the cleaning efficiency of the vibrating screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the cleaning mechanism of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the elastic member of the utility model.

[0021] The accompanying drawings are marked as follows: 1. base; 2. lifting frame; 3. cylinder; 4. vibrating screen; 5. self-locking universal wheel; 6. slide groove; 7. cleaning mechanism; 71. mounting frame; 72. movable seat; 73. rotating shaft; 74. rolling gear; 75. elastic member; 751. sleeve; 752. sleeve rod; 753. guide block; 754. spring; 76. scraper; 77. motor; 78. first bevel gear; 79. second bevel gear; 8. fixing plate; 9. guide gear plate. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1 - Figure 3The utility model provides a lifting device for a vibrating screen for oil drilling, comprising a base 1, a lifting frame 2 is hingedly connected to one end of the top of the base 1, two cylinders 3 are hingedly connected to the other end of the top of the base 1, and the output ends of the two cylinders 3 are hinged to the bottom of the lifting frame 2; a vibrating screen 4 is fixedly installed on the inner side of the lifting frame 2, and a cleaning mechanism 7 is installed on the top of the lifting frame 2. The cleaning mechanism 7 comprises a mounting frame 71, and movable seats 72 are fixedly installed at both ends of the bottom of the mounting frame 71. The two movable seats 72 are respectively slidably connected to the two ends of the top of the lifting frame 2, and an elastic member 75 is fixedly installed at the bottom of the mounting frame 71. A scraper 76 is fixedly installed at the bottom of the elastic member 75, and the bottom of the scraper 76 is in contact with the top surface of the vibrating screen 4; by controlling the two cylinders 3, the end of the vibrating screen 4 away from the discharge port can be pushed up, which makes the vibrating screen 4 tilted, so that the debris on the vibrating screen 4 can be easily removed.

[0024] Reference Figure 1 - Figure 3 The four corners of the bottom of the base 1 are rotatably mounted with self-locking universal wheels 5. The self-locking universal wheels 5 can facilitate the base 1 to move when unlocked, so that the whole can be transferred conveniently.

[0025] Reference Figure 1 - Figure 3 Both ends of the top of the lifting frame 2 are provided with slide grooves 6 matching the movable seats 72 , and the two movable seats 72 slide along the corresponding slide grooves 6 .

[0026] Reference Figure 1 - Figure 3 A rotating shaft 73 is rotatably installed on the inner side of the mounting frame 71, and rolling gears 74 are fixedly installed at both ends of the rotating shaft 73. The two rolling gears 74 are located on both sides of the lifting frame 2; fixed plates 8 are fixedly installed on both sides of the lifting frame 2, and guide tooth plates 9 are fixedly installed on the tops of the two fixed plates 8. The two rolling gears 74 are respectively meshed with the two guide tooth plates 9.

[0027] Reference Figure 1 - Figure 3 , the fixing plate 8 is an L-shaped structure.

[0028] Reference Figure 1 - Figure 3 The length of the guide tooth plate 9 is equal to the length of the lifting frame 2.

[0029] Reference Figure 1 - Figure 3 A motor 77 is fixedly mounted on the top of the mounting frame 71 , a first bevel gear 78 is fixedly mounted on the output shaft of the motor 77 , a second bevel gear 79 is fixedly mounted on the rotating shaft 73 , and the second bevel gear 79 meshes with the first bevel gear 78 .

[0030] Reference Figure 1 - Figure 4 The elastic member 75 includes a sleeve 751 and a sleeve rod 752; the sleeve 751 is fixedly mounted at the bottom of the mounting frame 71, the top of the sleeve rod 752 is inserted into the sleeve 751, and the bottom of the sleeve rod 752 is fixedly connected to the scraper 76; a guide block 753 is slidably mounted on the inner side of the sleeve 751, the bottom of the guide block 753 is fixedly connected to the sleeve rod 752, and a spring 754 is fixedly mounted on the top of the guide block 753. The sleeve 751 and the sleeve rod 752 can slide, and the spring 754 can apply a reverse elastic force to the guide block 753, so that the sleeve rod 752 is always subjected to the reverse force of the guide block 753, so that the scraper 76 is always in contact with the top surface of the vibrating screen 4, thereby improving the cleaning effect of the debris.

[0031] The working principle of the utility model is as follows: during cleaning, the two cylinders 3 are controlled to lift up one end of the vibrating screen 4 away from the discharge port, which causes the vibrating screen 4 to tilt; then the first bevel gear 78 is rotated by starting the motor 77, which causes the second bevel gear 79 to rotate synchronously, and thus the rotating shaft 73 to rotate synchronously, thereby causing the two rolling gears 74 to rotate synchronously, so that the two rolling gears 74 can roll along the corresponding guide tooth plates 9, and then the entire mounting frame 71 can be translated along the length direction of the lifting frame 2, so that the scraper 76 can slide along the top surface of the vibrating screen 4, and the scraper 76 can clean up the debris stuck on the vibrating screen 4, and the whole process realizes the automatic cleaning of the vibrating screen 4, without the need for manual cleaning, thereby greatly improving the cleaning efficiency of the vibrating screen 4.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting device for a petroleum drilling vibrating screen, comprising a base (1), one end of the top of the base (1) being hingedly connected to a lifting frame (2), the other end of the top of the base (1) being hingedly connected to two cylinders (3), the output ends of the two cylinders (3) being hingedly connected to the bottom of the lifting frame (2); characterized in that: A vibrating screen (4) is fixedly mounted on the inner side of the lifting frame (2); a cleaning mechanism (7) is mounted on the top of the lifting frame (2); the cleaning mechanism (7) comprises a mounting frame (71); movable seats (72) are fixedly mounted at both ends of the bottom of the mounting frame (71); the two movable seats (72) are respectively slidably connected to the two ends of the top of the lifting frame (2); an elastic member (75) is fixedly mounted on the bottom of the mounting frame (71); a scraper (76) is fixedly mounted on the bottom of the elastic member (75); the bottom of the scraper (76) is in contact with the top surface of the vibrating screen (4).

2. The oil drilling vibrating screen lifting device according to claim 1, characterized in that: Self-locking universal wheels (5) are rotatably mounted at the four corners of the bottom of the base (1).

3. A petroleum drilling vibrating screen lifting device according to claim 1 or 2, characterized in that: Both ends of the top of the lifting frame (2) are provided with sliding grooves (6) matching with the movable seats (72), and the two movable seats (72) slide along the corresponding sliding grooves (6).

4. The oil drilling vibrating screen lifting device according to claim 3, characterized in that: A rotating shaft (73) is rotatably mounted inside the mounting frame (71), rolling gears (74) are fixedly mounted at both ends of the rotating shaft (73), and the two rolling gears (74) are located on both sides of the lifting frame (2).

5. The oil drilling vibrating screen lifting device according to claim 4, characterized in that: Fixed plates (8) are fixedly mounted on both sides of the lifting frame (2), guide tooth plates (9) are fixedly mounted on the tops of the two fixed plates (8), and the two rolling gears (74) are respectively meshed with the two guide tooth plates (9).

6. The oil drilling vibrating screen lifting device according to claim 5, characterized in that: The fixing plate (8) is an L-shaped structure.

7. The oil drilling vibrating screen lifting device according to claim 6, characterized in that: The length of the guide tooth plate (9) is equal to the length of the lifting frame (2).

8. The oil drilling vibrating screen lifting device according to claim 7, characterized in that: A motor (77) is fixedly mounted on the top of the mounting frame (71), a first bevel gear (78) is fixedly mounted on the output shaft of the motor (77), a second bevel gear (79) is fixedly mounted on the rotating shaft (73), and the second bevel gear (79) is meshed with the first bevel gear (78).

9. The oil drilling vibrating screen lifting device according to claim 8, characterized in that: The elastic member (75) comprises a sleeve (751) and a sleeve rod (752); the sleeve (751) is fixedly mounted on the bottom of the mounting frame (71), the top end of the sleeve rod (752) is inserted into the sleeve (751), and the bottom end of the sleeve rod (752) is fixedly connected to the scraper (76).

10. The oil drilling vibrating screen lifting device according to claim 9, characterized in that: A guide block (753) is slidably mounted on the inner side of the sleeve (751); the bottom of the guide block (753) is fixedly connected to the sleeve rod (752); and a spring (754) is fixedly mounted on the top of the guide block (753).

Images