A dewatering screen for a sand washer

Abstract

The utility model relates to dehydration device technical field, concretely relates to a dehydration screen for sand washer, including support frame, the support frame upside is connected with vibrating frame through buffer, still include connecting piece and sieve plate, the both sides board of vibrating frame is equipped with connecting piece symmetry, and the connecting piece includes casing and movable rod in front side, the casing is fixedly connected vibrating frame's front side board through, and the movable rod is located in the left and right slide of casing's front part, the rear side of movable rod is equipped with the clamping block interval, and sieve plate is located between the both sides board of vibrating frame, and the back end symmetry of sieve plate's backshaped frame bottom surface is equipped with connecting assembly, and the front side connecting assembly is by a plurality of with clamping block one to one corresponding connecting block composition, and the backshaped frame of sieve plate is fixedly connected on each connecting block upper end, and the lower end movable penetration casing top board and stretches into the casing rear part, and each clamping block stretches into the clamping groove that the left side of corresponding connecting block seted up in. The utility model has solved the sieve plate on dehydration screen inconvenient problem of dismounting.

Description

Technical Field

[0001] This utility model relates to the technical field of dewatering devices, specifically to a dewatering screen for a sand washing machine. Background Technology

[0002] In the oil and gas industry, proppant plays a role in supporting fracturing fractures. The main raw material of proppant is quartz sand. Natural quartz sand often contains impurities, so sand washing machines are usually used to process the quartz sand particles. The core function of sand washing machines is to remove impurities from sand and gravel raw materials, optimize the particle size distribution of sand and gravel, and improve the cleanliness and quality of sand and gravel. The dewatering screen of the sand washing machine is mainly used for dewatering, desliming, and grading of sand and gravel after washing. Through vibrating screening technology, it significantly reduces the moisture content of materials and improves the quality of finished sand. When a dewatering screen is in use, the screen plate is a vulnerable part, and there are problems as mentioned in the authorization announcement number CN222998398U "A High-Efficiency Dewatering Screen". In some dewatering screens, the screen plate is usually fixed to the main body of the dewatering screen, which makes it difficult to disassemble and install the screen plate, thus affecting the maintenance and replacement of the screen plate. Similarly, as mentioned in the authorization announcement number CN223295176U "A Grading Dewatering Screen", some dewatering screens use a large number of bolts to fix the screen plate, which makes disassembly and assembly cumbersome. Utility Model Content

[0003] This utility model addresses the problem of inconvenient disassembly and assembly of screen plates on dewatering screens by providing a dewatering screen for sand washing machines. It enables convenient and quick disassembly and assembly of the dewatering screen, facilitating the maintenance and replacement of the screen plates.

[0004] To solve the above problems, the technical solution of this utility model is: A dewatering screen for a sand washing machine includes a support frame, a vibrating frame connected to the upper side of the support frame via a buffer, and vibrators mounted on the two side plates of the vibrating frame; it also includes connecting parts and a screen plate. The connecting parts are symmetrically arranged on the two side plates of the vibrating frame. The front connecting part includes a housing and a movable rod. The housing penetrates and is fixedly connected to the front side plate of the vibrating frame. The movable rod is slidably arranged left and right in the front part of the housing. The rear side of the movable rod is provided with spaced-apart locking blocks. The screen plate is located between the two side plates of the vibrating frame. The front and rear ends of the bottom of the screen plate's U-shaped frame are symmetrically arranged with connecting components. The front connecting component consists of multiple connecting blocks that correspond one-to-one with the locking blocks. The upper end of each connecting block is fixedly connected to the U-shaped frame of the screen plate, and the lower end movably penetrates the top plate of the housing and extends into the rear part of the housing. Each locking block extends into a locking groove opened on the left side of the corresponding connecting block.

[0005] Furthermore, a screw is provided inside the housing, the screw is threadedly connected to the middle of the movable rod, the left end of the screw is rotatably connected to the left side plate of the housing, and the right end movably passes through the right side plate of the housing and is connected to a rotating plate.

[0006] Furthermore, the card block is an isosceles trapezoidal block that is wider at the left end and narrower at the right end. Both the top and bottom surfaces of the card block are inclined surfaces, and the rear end of the front card block slides in contact with the rear side plate of the housing. The card slot is an isosceles trapezoidal slot that matches the card block. Each card slot has an opening at the left end and its front and rear ends pass through the front and rear ends of the connecting block, respectively.

[0007] Furthermore, the distance between any two adjacent connecting blocks is greater than the distance between the left and right ends of the card block. The top plate of the front housing is provided with through holes for the multiple connecting blocks on the front side of the sieve plate to pass through. When the bottom surface of the multiple connecting blocks on the front side contacts the inner bottom surface of the housing, the U-shaped frame of the sieve plate contacts the top surface of the rear part of the housing.

[0008] Furthermore, each of the movable rods has a threaded blind hole on its top surface, and a through hole is provided on the top plate of the housing on which the movable rod is located, with a bolt corresponding to the threaded blind hole inserted in the through hole.

[0009] Furthermore, when the movable rod moves to the left and contacts the left side plate of the housing, each locking block on the movable rod has a through hole on its right side, and each locking block is misaligned with the adjacent through hole, and the through hole and the threaded blind hole are misaligned; when the movable rod moves to the right and contacts the right side plate of the housing, each locking block on the movable rod is located below the adjacent through hole on the right side, and the left end of each locking block is flush with the left side of the upper through hole, and the through hole and the threaded blind hole are vertically aligned.

[0010] The beneficial effects of this utility model through the above technical solution are as follows: This invention allows the movable rod to move to its left limit, causing the connecting block on the screen plate's loop frame to extend into the housing. This, in turn, drives the movable rod to move to the right, causing the locking block on the movable rod to move to the right and extend into the corresponding slot on the connecting block, thus limiting the screen plate and completing the connection between the screen plate and the housing. Furthermore, the bolts on the housing limit the displacement of the movable rod due to vibration, improving the stability of the screen plate installation. Therefore, this invention allows for easy disassembly and assembly of the screen plate, facilitating its maintenance and replacement. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the connection between the sieve plate and the connecting block of this utility model; Figure 3 This is a schematic diagram of the connection between the movable rod, screw, and locking block of this utility model; Figure 4 This is a schematic diagram of the structure of the shell of this utility model; Figure 5 This is a top sectional view of the connection between the housing, movable rod, and sieve plate of this utility model; Figure 6 yes Figure 5 Sectional view at point AA.

[0012] The attached diagram is labeled as follows: 1. Support frame, 2. Drainage cover, 3. Buffer, 4. Vibration frame, 5. Exciter, 6. Housing, 7. Movable rod, 8. Locking block, 9. Screen plate, 9a. U-shaped frame, 9b. Screen mesh, 10. Connecting block, 11. Slot, 12. Screw, 13. Rotating plate, 14. Through hole, 15. Through hole, 16. Threaded blind hole, 17. Bolt, 18. Mounting hole, 19. Rib plate. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-6 As shown, a dewatering screen for a sand washing machine includes a support frame 1 with a drainage cover 2. A vibrating frame 4 is connected to the upper side of the support frame 1 via a buffer 3. Vibrators 5 are mounted on the two side plates of the vibrating frame 4. The screen also includes connecting parts and a screen plate 9. Connecting parts are symmetrically arranged on the two side plates of the vibrating frame 4. The front connecting part includes a housing 6 and a movable rod 7. The housing 6 is a rectangular shell with its lower opening sealed by a bottom plate. The housing 6 penetrates and is fixedly connected to the front side plate of the vibrating frame 4. The front side plate of the vibrating frame 4 has mounting holes 18 for fixing the housing 6. The front and rear parts of the bottom of the housing are connected to the front side plate of the vibrating frame via ribs 19. The front part of the housing 6 can slide left and right. There is a movable rod 7, which is a rectangular rod that slides on the upper and lower inner surfaces of the housing 6 on its upper and lower sides and slides on the front inner surface of the housing 6 on its front side. The movable rod 7 has a locking block 8 spaced apart on its rear side. The screen plate 9 is located between the two side plates of the vibrating frame 4. The screen plate 9 includes a screen plate 9 and a screen mesh 9b. The bottom front and rear ends of the folded frame 9a of the screen plate 9 are symmetrically provided with connecting components. The front connecting component is composed of multiple connecting blocks 10 that correspond one-to-one with the locking blocks 8. The upper end of each connecting block 10 is fixedly connected to the folded frame 9a of the screen plate 9, and the lower end moves through the top plate of the housing 6 and extends into the rear part of the housing 6. Each locking block 8 extends into the locking groove 11 opened on the left side of the corresponding connecting block 10. The connecting block 10 is a rectangular block.

[0014] The housing 6 is provided with a screw 12 for driving the movable rod 7 to slide left and right. The screw 12 is threaded to the middle of the movable rod 7. The left end of the screw 12 is rotatably connected to the left side plate of the housing 6 via a bearing, and the right end is movably connected to the right side plate of the housing 6 and connected to a rotating plate 13.

[0015] The locking block 8 is an isosceles trapezoidal block that is wider at the left end and narrower at the right end. Both the top and bottom surfaces of the locking block 8 are inclined surfaces. The rear end of the front locking block 8 slides in contact with the rear side plate of the housing 6. The upper and lower ends of the left side surface of the locking block 8 slide in contact with the upper and lower surfaces of the housing 6, respectively. The locking groove 11 is an isosceles trapezoidal groove that corresponds to the locking block 8. The left end of each locking groove 11 is open, and the front and rear ends of each groove pass through the front and rear of the connecting block 10, respectively.

[0016] The distance between any two adjacent connecting blocks 10 is greater than the distance between the left and right ends of the card block 8. The top plate of the front housing 6 is provided with through holes 14 for the multiple connecting blocks 10 on the front side of the sieve plate 9 to pass through. When the bottom surface of the multiple connecting blocks 10 on the front side contacts the inner bottom surface of the housing 6, the loop frame 9a of the sieve plate 9 contacts the top surface of the rear part of the housing 6.

[0017] Each of the movable rods 7 has a threaded blind hole 16 on its top surface, and a through hole 15 is provided on the top plate of the housing 6 where the movable rod 7 is located. A bolt 17 corresponding to the threaded blind hole 16 is installed in the through hole 15.

[0018] The length of the movable rod 7 is less than the distance between the left and right side plates of the housing 6. When the movable rod 7 moves to the left and contacts the left side plate of the housing 6, each locking block 8 on the movable rod 7 has a through hole on its right side. Each locking block is misaligned with the adjacent through hole 14, and the through hole 15 and the threaded blind hole 16 are misaligned. When the movable rod 7 moves to the right and contacts the right side plate of the housing 6, each locking block 8 on the movable rod 7 is located below the adjacent through hole 14 on the right side. The left end of each locking block is flush with the left side of the upper through hole, and the through hole 15 and the threaded blind hole 16 are vertically aligned.

[0019] During installation, bolts 17 are not initially inserted into the through holes 15 on the housing 6. The screws 12 on each connector are rotated. Since the movable rods 7 are confined within the housing 6, they can only move left and right. Rotating each screw 12 drives the connected movable rods 7 to the left until the left end of each movable rod 7 contacts the left side plate of the housing 6. At this point, each locking block 8 on the movable rod 7 is misaligned with the adjacent through holes 14 on the housing 6, and the through holes and threaded blind holes 16 are also misaligned. Subsequently, the screen plate 9 is placed between the two side plates of the vibrating frame 4, with each connecting block 10 on the screen plate 9 facing left. Multiple connecting blocks 10 on the front side of the screen plate 9's loop frame 9a extend into the housing 6 through the through holes 14 on the front side. At the same time, multiple connecting blocks 10 on the rear side of the screen plate 9's loop frame 9a extend into the housing 6 through the through holes 14 on the rear side. Each locking block 8 inside the housing 6 has a connecting block 10 on its right side. The slot 11 on the upper part faces the corresponding locking block 8. The screw 12 on each housing 6 is rotated in the opposite direction. The screw 12 drives the connected movable rod 7 to move to the right to the limit state. At this time, each locking block 8 extends into the slot 11 on the corresponding connecting block 10. The isosceles trapezoidal locking block 8 and the slot 11 are in inclined contact, with a larger contact area and more uniform pressure distribution, which can avoid local stress concentration. After the locking block 8 enters the slot 11, the screen plate 9 is limited and the screen plate 9 is connected to the housing 6. The threaded blind hole 16 on each movable rod 7 is located below the corresponding through hole 15. Subsequently, a bolt 17 is installed in each through hole 15. The shank of the bolt 17 is threaded to the threaded blind hole 16 on the movable rod 7. The bolt 17 can limit the movement of the movable rod 7. When external vibration causes the screw 12 to have a rotation tendency, it will not cause the movable rod to be displaced. The bolt can keep the movable rod 7 stable, thereby making the connection of the screen plate 9 stable. During disassembly, unscrew the bolts 17 on each movable rod 7, allowing each movable rod 7 to move to its left limit. The locking block 8 disengages from the slot 11 on the connecting block 10, releasing the locking block 8 from limiting the connecting block 10. Pull upwards, and the connecting block 10 on the sieve plate 9 can easily disengage from the housing 6, completing the disassembly and facilitating subsequent maintenance and replacement.

[0020] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Any equivalent or equivalent modifications or substitutions to the technical solutions of the present utility model without departing from the spirit of the present utility model or the scope of disclosure shall fall within the protection scope of the present utility model.

Claims

1. A dewatering screen for a sand washing machine, comprising a support frame (1), wherein a vibrating frame (4) is connected to the upper side of the support frame (1) via a buffer (3), and vibrators (5) are mounted on both side plates of the vibrating frame (4); characterized in that, It also includes connectors and a screen plate (9). Connectors are symmetrically provided on both sides of the vibrating frame (4). The front connector includes a housing (6) and a movable rod (7). The housing (6) passes through and is fixedly connected to the front side plate of the vibrating frame (4). The movable rod (7) is slidably provided in the front part of the housing (6). The movable rod (7) is provided with a locking block (8) at intervals on the rear side of the movable rod (7). The screen plate (9) is located between the two sides of the vibrating frame (4). The front and rear ends of the bottom of the sieve frame (9a) of the screen plate (9) are symmetrically provided with connecting components. The front connecting component is composed of multiple connecting blocks (10) that correspond one-to-one with the locking blocks (8). The upper end of each connecting block (10) is fixedly connected to the sieve frame (9a) of the screen plate (9), and the lower end is movably connected through the top plate of the housing (6) and extends into the rear part of the housing (6). Each locking block (8) extends into the locking groove (11) opened on the left side of the corresponding connecting block (10).

2. The dewatering screen for a sand washing machine according to claim 1, characterized in that, The housing (6) is provided with a screw (12), which is threaded to the middle of the movable rod (7). The left end of the screw (12) is rotatably connected to the left side plate of the housing (6), and the right end is movably connected to the right side plate of the housing (6) and connected to a rotating plate (13).

3. The dewatering screen for a sand washing machine according to claim 1, characterized in that, The card block (8) is an isosceles trapezoidal block that is wider at the left end and narrower at the right end. Both the upper and lower surfaces of the card block (8) are inclined surfaces. The rear end of the front card block (8) slides in contact with the rear side plate of the housing (6). The card slot (11) is an isosceles trapezoidal slot that corresponds to the card block (8). The left end of each card slot (11) is open, and the front and rear ends of each slot pass through the front and rear of the connecting block (10) respectively.

4. A dewatering screen for a sand washing machine according to claim 3, characterized in that, The distance between any two adjacent connecting blocks (10) is greater than the distance between the left and right ends of the card block (8). The top plate of the front housing (6) is provided with through holes (14) through which multiple connecting blocks (10) on the front side of the sieve plate (9) pass. When the bottom surface of the multiple connecting blocks (10) on the front side contacts the inner bottom surface of the housing (6), the loop frame (9a) of the sieve plate (9) contacts the top surface of the rear part of the housing (6).

5. A dewatering screen for a sand washing machine according to claim 4, characterized in that, Each of the movable rods (7) has a threaded blind hole (16) on its top surface, and a through hole (15) is provided on the top plate of the housing (6) where the movable rod (7) is located. A bolt (17) that matches the threaded blind hole (16) is installed in the through hole (15).

6. A dewatering screen for a sand washing machine according to claim 5, characterized in that, When the movable rod (7) moves to the left and contacts the left side plate of the housing (6), each locking block (8) on the movable rod (7) has a through hole on its right side. Each locking block is misaligned with the adjacent through hole (14), and the through hole (15) and the threaded blind hole (16) are misaligned. When the movable rod (7) moves to the right and contacts the right side plate of the housing (6), each locking block (8) on the movable rod (7) is located below the adjacent through hole (14) on the right side. The left end of each locking block is flush with the left side of the upper through hole, and the through hole (15) and the threaded blind hole (16) correspond vertically.

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