Automatic cement sampling device

Abstract

The utility model relates to the technical field of cement sampling, and discloses an automatic cement sampling device. The automatic cement sampling device comprises a supporting frame, a fixing shaft is fixedly installed at the upper end of the supporting frame, a transmission frame is movably installed on one side of the supporting frame, a connecting shaft is fixedly installed at the front end of the transmission frame, connecting blocks are installed at the center of the fixing shaft and the center of the connecting shaft in a penetrating and inserting mode, and a transmission piston is fixedly installed between the connecting blocks. A limiting plate is fixedly mounted at the rear end of the transmission frame, when the transmission piston extends, the inclination angle of the transmission piston can be changed, and the transmission frame is driven to rotate by taking the center of the left side cylindrical structure as a reference, so that the height of the rear end of the limiting plate can be conveniently adjusted; at the moment, the transmission frame and the limiting plate are in a horizontal state, cement above the conveying belt cannot make contact with the sampling device, and the situation that the cement falls from the left side and the right side of the conveying belt due to the fact that the sampling device blocks cement movement is avoided.

Description

Technical Field

[0001] This utility model relates to the field of cement sampling technology, specifically to an automatic cement sampling device. Background Technology

[0002] Cement: A powdered hydraulic inorganic binder. When mixed with water, it forms a paste that hardens in air or water, and firmly binds materials such as sand and stone together. Early mixtures of lime and volcanic ash were very similar to modern lime-volcanic ash cement. Concrete made with this binder not only has high strength after hardening but also resists erosion from fresh or salt water. For a long time, it has been widely used as an important binder in civil engineering, water conservancy, and national defense projects.

[0003] The existing Chinese utility model patent with publication number CN220583840U discloses an automatic sampling device for cement testing. Its technical solution includes: a base, a sampling tube, and a top plate. A limit rod and a second drive motor are installed on the top surface of the base, and a lead screw is installed on the output shaft of the second drive motor. The sampling tube is welded to the front end of the top plate, and a driven shaft is sleeved inside the top plate. A third drive motor is installed on the rear end of the top plate, and a drive shaft is installed on the output shaft of the third drive motor. A first fixing frame and a second fixing frame are welded to the bottom end of the top plate. The first drive motor is installed on the top end of the sampling tube, and a rotating shaft is installed on the output shaft of the first drive motor, with helical blades welded to the rotating shaft. A conveyor belt is sleeved on the drive shaft, and the end of the conveyor belt facing away from the drive shaft is sleeved on the driven shaft. This utility model satisfies the requirements for cement testing sampling and prevents accidental contact during sampling.

[0004] Cement is transported via conveyor belts during production. Sampling devices are typically installed above the conveyor belt. However, the thickness of cement on the conveyor belt after discharge is inconsistent. Existing sampling devices have a fixed height. When too much cement accumulates above the conveyor belt, the sampling device will obstruct the movement of the cement, causing it to slide off the sides of the conveyor belt. Furthermore, due to the uncertain height of the cement accumulation, it is impossible to sample the cement when the cement accumulation thickness is insufficient to reach the bottom of the auger structure. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an automatic cement sampling device that has advantages such as avoiding the sampling device from affecting cement transportation and avoiding the impact of cement accumulation height on sampling, thus solving the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an automatic cement sampling device, comprising: a support frame, a fixed shaft fixedly installed at the upper end of the support frame, a transmission frame movably installed on one side of the support frame, a connecting shaft fixedly installed at the front end of the transmission frame, a connecting block inserted through the center of the fixed shaft and the connecting shaft, a transmission piston fixedly installed between the connecting blocks, a limiting plate fixedly installed at the rear end of the transmission frame, a limiting shaft inserted through the rear end of the limiting plate, a drive shaft inserted through the front side of the limiting plate, a toothed disc fixedly installed on the outer side of the limiting shaft and the drive shaft, a chain meshing with the outer edge of the toothed disc, a connecting column fixedly installed on one side of the chain, a sampling hopper movably installed below the connecting column, a blocking rod fixedly installed at the lower end of the transmission frame, a drive motor fixedly installed at the left end of the drive shaft, a fixed frame fixedly installed on the outer side of the drive motor, and a sliding groove fixedly installed on the upper part of the support frame; the support frame can support the transmission frame.

[0009] As a preferred technical solution of this utility model, the support frame is mirror-symmetrically installed on the left and right ends of the fixed shaft with the center of the fixed shaft as the reference. The rear end of the transmission frame is provided with a columnar protrusion, and the transmission frame is rotatably connected to the support frame through the rear columnar protrusion structure. The transmission frame can drive the limiting plate to rotate.

[0010] As a preferred embodiment of this utility model, the connecting block is rotatably connected to the fixed shaft and the connecting shaft. The upper end of the transmission piston is fixedly connected to the connecting block at the center of the fixed shaft, and the lower end is fixedly connected to the connecting block at the center of the connecting shaft. The connecting block facilitates the connection between the transmission piston and the fixed shaft and the connecting shaft.

[0011] As a preferred technical solution of this utility model, the limiting plate is fixedly installed on the inner side of the left and right transmission frames, and the limiting shaft, the drive shaft and the limiting plate are rotatably connected. The left end of the drive shaft passes through the transmission frame and is fixedly connected to the rotating shaft of the drive motor by inserting it. The drive shaft can facilitate the drive motor to drive the chainring to rotate.

[0012] As a preferred embodiment of this utility model, the toothed discs are symmetrically installed on the left and right sides of the limiting shaft and the drive shaft, and the chain is symmetrically installed on the outer sides of the toothed discs on the left and right sides of the limiting shaft and the drive shaft; the toothed discs can drive the chain to rotate.

[0013] As a preferred embodiment of this utility model, the connecting post is fixedly installed between the left and right chains, and the sampling bucket and the connecting post form a rotatable connection; the connecting post facilitates the connection between the sampling bucket and the chain.

[0014] As a preferred embodiment of this utility model, the front and rear sides of the sampling hopper are inclined structures, the right end of the fixing frame is fixedly connected to the left transmission frame, and the chute is located directly below the blocking rod; the chute facilitates cement discharge.

[0015] Compared with the prior art, this utility model provides an automatic cement sampling device, which has the following features:

[0016] Beneficial effects:

[0017] 1. This utility model uses a transmission piston. The upper and lower ends of the transmission piston are mirror-mounted on the connecting block, so that the upper end of the transmission piston is connected to the fixed shaft and the lower end is connected to the connecting shaft. When the transmission piston extends, its tilt angle changes and drives the transmission frame to rotate around the center of the left columnar structure as a reference, so as to adjust the height of the rear end of the limiting plate. When sampling is not required, the transmission piston is in the extended state. At this time, the transmission frame and the limiting plate are in a horizontal state, and the cement above the conveyor belt will not come into contact with the sampling device, thus avoiding the sampling device from blocking the movement of cement and causing cement to fall from the left and right sides of the conveyor belt.

[0018] 2. This utility model, through the chain configuration, requires the rear end of the limiting plate to point in the conveyor belt's transport direction during use. The conveyor belt transports cement from one side of the transmission piston to the other. A drive motor drives the drive shaft to rotate, causing the outer toothed sprocket of the drive shaft to rotate the chain. The connecting column facilitates the connection between the sampling bucket and the chain. Thus, as the chain rotates, the connecting column moves the sampling bucket. Because the sampling bucket is rotatably connected to the connecting column via two rod-like structures on its upper sides, when the sampling bucket moves with the chain to contact the limiting shaft, it will flip under the constraint of the limiting shaft and, as the chain rotates, hook onto the cement. The vertical sides of the sampling bucket... The connecting structure increases the rotation radius of the sampling bucket, ensuring that the front of the sampling bucket remains in contact with the conveyor belt when it moves behind the limiting plate. Since the conveyor belt travels in the opposite direction to the sampling bucket, this design allows the inclined structure on the front of the sampling bucket to work in conjunction with the conveyor belt to continuously scoop up cement above the conveyor belt, facilitating cement sampling when the cement thickness is insufficient. After sampling, the sampling bucket moves forward under the drive of the chain. When the sampling bucket contacts the blocking bar, it tilts under the restriction of the blocking bar, allowing the cement inside to be poured into the chute. The chute facilitates the discharge of cement from the left side. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the transmission frame installation structure of this utility model;

[0021] Figure 3This is a schematic diagram of the chain installation structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the drive motor mounting structure of this utility model;

[0023] The components are: 1. Support frame; 11. Fixed shaft; 12. Transmission frame; 13. Connecting shaft; 14. Connecting block; 15. Transmission piston; 16. Limiting plate; 17. Limiting shaft; 18. Drive shaft; 19. Gear plate; 110. Chain; 111. Connecting column; 112. Sampling hopper; 113. Blocking rod; 114. Drive motor; 115. Fixed frame; 116. Slide groove. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figure 1 - Figure 4In this embodiment, an automatic cement sampling device includes: a support frame 1, a fixed shaft 11 fixedly mounted on the upper end of the support frame 1, a transmission frame 12 movably mounted on one side of the support frame 1, a connecting shaft 13 fixedly mounted on the front end of the transmission frame 12, a connecting block 14 inserted through the center of the fixed shaft 11 and the connecting shaft 13, a transmission piston 15 fixedly mounted between the connecting blocks 14, a limiting plate 16 fixedly mounted on the rear end of the transmission frame 12, a limiting shaft 17 inserted through the rear end of the limiting plate 16, and a limiting shaft 17 inserted through the front side of the limiting plate 16. A drive shaft 18 is inserted and installed. A toothed sprocket 19 is fixedly installed on the outer side of the limit shaft 17 and the drive shaft 18. A chain 110 is meshed on the outer edge of the toothed sprocket 19. A connecting post 111 is fixedly installed on one side of the chain 110. A sampling hopper 112 is movably installed below the connecting post 111. A blocking rod 113 is fixedly installed at the lower end of the transmission frame 12. A drive motor 114 is fixedly installed at the left end of the drive shaft 18. A fixing bracket 115 is fixedly installed on the outer side of the drive motor 114. A slide groove 116 is fixedly installed on the upper part of the support frame 1.

[0028] The support frame 1 is mirror-symmetrically mounted on the left and right ends of the fixed shaft 11 with the center as the reference. The rear end of the transmission frame 12 is provided with a cylindrical protrusion, and the transmission frame 12 is rotatably connected to the support frame 1 through the rear cylindrical protrusion structure. The connecting block 14 is rotatably connected to the fixed shaft 11 and the connecting shaft 13. The upper end of the transmission piston 15 is fixedly connected to the connecting block 14 at the center of the fixed shaft 11, and the lower end is fixedly connected to the connecting block 14 at the center of the connecting shaft 13. The limiting plate 16 is fixedly installed on the inner side of the left and right transmission frames 12. The limiting shaft 17, the drive shaft 18 and the limiting plate 16 are rotatably connected. The left end of the drive shaft 18 passes through the transmission frame 12 and is fixedly connected to the shaft of the drive motor 114 by insertion. The chain 19 is symmetrically installed on the left and right sides of the limit shaft 17 and the drive shaft 18. The chain 110 is symmetrically installed on the outside of the chain 19 on the left and right sides of the limit shaft 17 and the drive shaft 18. The connecting column 111 is fixedly installed between the left and right chains 110. The sampling bucket 112 and the connecting column 111 form a rotatable connection. The front and rear sides of the sampling bucket 112 are inclined structures. The right end of the fixing frame 115 is fixedly connected to the left transmission frame 12. The slide 116 is located directly below the stop bar 113.

[0029] Specifically, the upper part of the support frame 1 tapers towards the center in a stepped manner, so that the lower end of the support frame 1 is located on the left and right sides of the conveyor belt. The columnar structure on the left side of the transmission frame 12 is inserted into the support frame 1 to facilitate the rotation of the transmission frame 12. The upper and lower ends of the transmission piston 15 are mirror-mounted on the connecting block 14, so that the upper end of the transmission piston 15 is connected to the fixed shaft 11 and the lower end is connected to the connecting shaft 13. When the transmission piston 15 extends, its tilt angle changes and drives the transmission frame 12 to rotate around the center of the left columnar structure to adjust the position of the rear end of the limiting plate 16. The limiting plate 16 can limit the distance between the limiting shaft 17 and the drive shaft 18. The position of the chain 110 is limited by the toothed plates 19 on the left and right sides of the limiting shaft 17 and the drive shaft 18. Since the left end of the drive shaft 18 is fixedly connected to the shaft of the drive motor 114, the drive motor 114 drives the drive shaft 18 to rotate, thereby making the drive shaft 18 The outer toothed sprocket 19 drives the chain 110 to rotate. The connecting post 111 facilitates the connection between the sampling bucket 112 and the chain 110. Thus, when the chain 110 rotates, the connecting post 111 drives the sampling bucket 112 to move, allowing the sampling bucket 112 to perform sampling. As the sampling bucket 112 moves with the chain 110, it moves from bottom to top from the front end of the chain 110. When the sampling bucket 112 moves backward and contacts the limiting shaft 17, it will... Under the constraint of the limiting shaft 17, it flips over and, as the chain 110 rotates, hooks itself up above the cement, so that the sampling bucket 112 can sample the cement. After sampling is completed, the sampling bucket 112 moves forward under the drive of the chain 110. After the sampling bucket 112 contacts the blocking rod 113, the sampling bucket 112 will tilt under the constraint of the blocking rod 113, so that the cement inside can be poured into the chute 116. The chute 116 can facilitate the discharge of cement from the left side.

[0030] In use, the upper and lower ends of the transmission piston 15 are mirror-mounted on the connecting block 14, so that the upper end of the transmission piston 15 is connected to the fixed shaft 11 and the lower end is connected to the connecting shaft 13. When the transmission piston 15 extends, its tilt angle changes, causing the transmission frame 12 to rotate around the center of the left columnar structure as a reference, so as to adjust the height of the rear end of the limiting plate 16. When sampling is not required, the transmission piston 15 is in the extended state. At this time, the transmission frame 12 and the limiting plate 16 are in a horizontal state, and the cement above the conveyor belt will not come into contact with the sampling device. To prevent the sampling device from obstructing the movement of cement and causing it to fall from the left and right sides of the conveyor belt, the rear end of the limiting plate 16 should point towards the conveyor belt's transport direction during use. The conveyor belt transports cement from one side of the transmission piston 15 to the other. The drive motor 114 drives the drive shaft 18 to rotate, which in turn causes the outer toothed disc 19 of the drive shaft 18 to drive the chain 110 to rotate. The connecting post 111 facilitates the connection between the sampling bucket 112 and the chain 110, so that when the chain 110 rotates, the connecting post 111 drives the sampling bucket 112 to move. The sampling hopper 112 is rotatably connected to the connecting column 111 via two rod-like structures on both sides. When the sampling hopper 112 moves with the chain 110 to contact the limiting shaft 17, it will flip under the restriction of the limiting shaft 17 and, as the chain 110 rotates, hook itself onto the cement. The vertical connecting structures on the left and right sides of the sampling hopper 112 can increase the rotation radius of the sampling hopper 112, so that when the sampling hopper 112 moves behind the limiting plate 16, the front side of the sampling hopper 112 remains in contact with the conveyor belt. Since the conveyor belt's transport direction is opposite to the sampling direction, the sampling hopper 112 is rotated. The sampling bucket 112 moves in the opposite direction. This method allows the inclined structure on the front side of the sampling bucket 112 to work together with the conveyor belt to continuously scoop up the cement above the conveyor belt, so as to sample the cement when the cement thickness is insufficient. After sampling is completed, the sampling bucket 112 moves forward under the drive of the chain 110. After the sampling bucket 112 contacts the blocking bar 113, the sampling bucket 112 will tilt under the restriction of the blocking bar 113, so as to pour the cement inside into the chute 116. The chute 116 can facilitate the discharge of cement from the left side.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cement automatic sampling device, characterized by, The utility model relates to a cement automatic sampling device, including: Support frame (1), the upper end of support frame (1) is fixedly installed with fixed shaft (11), one side of support frame (1) is movably installed with transmission frame (12), the front end of transmission frame (12) is fixedly installed with connecting shaft (13), the center of fixed shaft (11) and connecting shaft (13) is inserted with connecting block (14), transmission piston (15) is fixedly installed between connecting block (14), the rear end of transmission frame (12) is fixedly installed with limit plate (16), the rear end of limit plate (16) is inserted with limit shaft (17), the front side of limit plate (16) is inserted with drive shaft (18), the outside of limit shaft (17) and drive shaft (18) is fixedly installed with tooth disc (19), the outer edge of tooth disc (19) is engaged with chain (110), one side of chain (110) is fixedly installed with connecting column (111), the lower activity of connecting column (111) is installed with sampling hopper (112), the lower end of transmission frame (12) is fixedly installed with blocking rod (113), the left end of drive shaft (18) is fixedly installed with drive motor (114), the outside of drive motor (114) is fixedly installed with fixed frame (115), the upper of support frame (1) is fixedly installed with chute (116).

2. The cement automatic sampling device according to claim 1, wherein: The support frame (1) is installed on the left and right ends of the fixed shaft (11) in mirror image symmetry with the center of the fixed shaft (11) as a reference, and the rear end of the transmission frame (12) is provided with a cylindrical protrusion, and the transmission frame (12) is rotatably connected to the support frame (1) through the cylindrical protrusion structure between the rear end of the transmission frame (12) and the support frame (1).

3. The cement automatic sampling device according to claim 1, wherein: The connecting block (14) is rotatably connected between the fixed shaft (11) and the connecting shaft (13), the upper end of the transmission piston (15) is fixedly connected to the connecting block (14) at the center of the fixed shaft (11), and the lower end of the transmission piston (15) is fixedly connected to the connecting block (14) at the center of the connecting shaft (13).

4. The cement automatic sampling device according to claim 1, wherein: The limit plate (16) is fixedly installed on the inner sides of the transmission frames (12) on the left and right sides, the limit shaft (17) and the drive shaft (18) are rotatably connected to the limit plate (16), and the left end of the drive shaft (18) is fixedly connected to the rotating shaft of the drive motor (114) by penetrating the transmission frame (12).

5. The cement automatic sampling device according to claim 1, wherein: The tooth discs (19) are symmetrically installed on the left and right sides of the limit shaft (17) and the drive shaft (18), and the chain (110) is symmetrically installed on the outer sides of the tooth discs (19) on the left and right sides of the limit shaft (17) and the drive shaft (18).

6. The cement automatic sampling device according to claim 1, wherein: The connecting column (111) is fixedly installed between the left and right chains (110), and the sampling bucket (112) and the connecting column (111) are rotationally connected.

7. The automatic cement sampling device according to claim 1, characterized in that: The front and rear sides of the sampling bucket (112) are inclined, the right end of the fixed frame (115) is fixedly connected with the left transmission frame (12), and the sliding groove (116) is located directly below the blocking rod (113).

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