Sand mixing device for concrete mixed sand detection
The sand mixing device, with its four rollers and sturdy connection structure, solves the problem of uneven mixing between artificial sand and fine sand, achieving efficient and uniform sand mixing, extending the equipment's service life, and reducing vibration and noise.
Patent Information
- Application Number
- CN202423312822.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional roller sand mixers cannot effectively mix artificial sand and fine sand, resulting in uneven mixing and affecting production efficiency.
The design employs four grinding wheels, including an inner grinding wheel and an outer grinding wheel. The inner and outer grinding wheels are driven to rotate simultaneously by a dual-shaft drive component. Combined with a sand scraping assembly and a robust connection structure, this ensures that the sand is mixed evenly in the mixing chamber.
It significantly improves mixing efficiency and uniformity, reduces sand accumulation and local unevenness, extends equipment life, and reduces equipment vibration and noise.
Smart Images
Figure CN223846773U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of mixed sand preparation, and particularly relates to a mixed sand device for concrete mixed sand detection. BACKGROUND
[0002] With the increasing quantity of sand used in the construction market and the increasing quality requirement, qualified natural sand resources are becoming less and less, and the natural sand resources are increasingly exhausted. In order to alleviate the contradiction of the sand used in concrete and expand the source range of the sand used in concrete, many manufacturers begin to use artificial sand to prepare concrete. Compared with natural sand, the artificial sand has a larger fineness modulus. If the artificial sand is used as the fine aggregate in concrete alone, the pumping property and workability of the concrete are very poor, and the concrete is prone to bleeding. Therefore, the artificial sand is mixed with fine sand with a fineness modulus less than 1.6, which can better improve the gradation of the sand and reduce the fineness modulus of the sand. The traditional roller mill has only two rollers, and cannot ensure uniform mixing of the artificial sand and the fine sand. Moreover, the mixing time is long, which affects the production efficiency. SUMMARY
[0003] The utility model aims at providing a mixed sand device for concrete mixed sand detection which can improve the mixing efficiency and improve the mixing uniformity.
[0004] A mixed sand device for concrete mixed sand detection, comprising a support frame and a mixed sand chamber, a rotating drive mechanism is installed on the support frame, a rotating shaft is connected to the rotating drive mechanism, the rotating shaft is vertically arranged in the mixed sand chamber, the rotating shaft is connected to a mixed sand mechanism in the mixed sand chamber, the mixed sand mechanism comprises a support block and a roller assembly, two groups of the roller assembly are connected to the support block and located on both sides of the long side of the support block, the roller assembly comprises a connecting piece, a double-shaft drive, an inner roller and an outer roller, the connecting piece is connected to one end of the support block, the double-shaft drive is close to the other end of the support block and connected to the connecting piece, the inner roller and the outer roller are connected to the double-shaft drive, the inner roller is close to the center of the mixed sand chamber, and the outer roller is close to the side wall of the mixed sand chamber.
[0005] In the above scheme, the rotating driving mechanism is used to drive the rotating shaft to rotate, and drive the sand mixing mechanism in the sand mixing chamber to rotate, so as to mix the artificial sand and fine sand in the sand mixing chamber. The support block of the sand mixing mechanism is connected with the rotating shaft, and the rotating shaft drives the support block to rotate, so as to drive the mill rollers on both sides of the support block to rotate and mix the artificial sand and fine sand. The connecting piece is used to connect the double-shaft driving piece and the support block. The double-shaft driving piece can drive the inner mill roller and the outer mill roller to rotate at the same time. The outer mill roller is mainly responsible for the sand in most of the area between the outer wall of the sand mixing chamber and the central area. The inner mill roller is responsible for the sand near the central area. In this way, the artificial sand and fine sand are mixed from both sides of the sand mixing chamber, which reduces the accumulation of sand and the problem of uneven mixing in local area. Compared with two mill rollers, four mill rollers working at the same time can significantly improve the mixing efficiency.
[0006] Further, the support block comprises a main body, connecting shafts and a connecting block. The two connecting shafts are connected with the long sides of the main body and located at the two ends of the diagonal line of the main body. The connecting block is connected with the short side of the main body.
[0007] In the above scheme, the two connecting shafts are used to connect with the connecting piece. The connecting shafts are located at the two ends of the diagonal line of the main body, so that the outer mill roller and the inner mill roller support block are located on the diagonal line. The connecting block is used to connect other structures. This structure design can maximize the use of the space in the sand mixing chamber. Through the support of the connecting shaft, the mill roller assembly can work more stably, thereby improving the stirring effect and ensuring the uniform mixing of the sand.
[0008] Further, the connecting piece comprises a first connecting cylinder, a connecting strip and a second connecting cylinder. The first connecting cylinder is sleeved on the connecting shaft. The two ends of the connecting strip are respectively connected with the first connecting cylinder and the second connecting cylinder. The second connecting cylinder is sleeved on the double-shaft driving piece.
[0009] In the above scheme, the double-shaft driving piece is a double-shaft reduction motor, which is in the shape of a cylinder. In this way, the second connecting cylinder can be sleeved on the double-shaft driving piece. The two output shafts of the double-shaft driving piece drive the outer mill roller and the inner mill roller to rotate. This design enables the outer mill roller and the inner mill roller to be more evenly distributed in the entire sand mixing chamber, ensuring that the sand from the center to the edge can be fully mixed. The first connecting cylinder is sleeved on the connecting shaft. This design can ensure that the connection between the connecting piece and the support block is more stable, reducing the vibration and displacement generated during stirring and improving the stability of the structure.
[0010] Further, a plurality of semispherical convex points are arranged on the outer mill roller and the inner mill roller.
[0011] In the above scheme, the semi-spherical convex points can increase the contact area between the outer and inner grinding wheels and the sand, thereby improving the friction. This design makes it easier for the sand to be lifted and turned during mixing, enhancing the uniformity and completeness of the mixing. In addition, the semi-spherical convex points can produce point-like impact force on the sand during rotation, which helps to break up the clumps in the sand and ensure thorough mixing of the sand.
[0012] Further, the sand scraping assembly includes a support rod and an arc-shaped scraper, the head of the support rod is connected with the connecting block, and the tail of the support rod is connected with the scraper.
[0013] In the above scheme, the head of the support block is connected with the connecting block, so that the support block can drive the support rod to rotate, thereby driving the arc-shaped scraper to rotate. The arc-shaped scraper can ensure that the artificial sand and fine sand in the sand mixing chamber are always in a dynamic mixing state, improving the efficiency and uniformity of the mixing.
[0014] Further, the connecting block is provided with a cylindrical connecting hole, the head of the support rod is cylindrical, and the head of the support rod is arranged in the connecting hole.
[0015] In the above scheme, the cylindrical connecting hole and the cylindrical head of the support rod can realize tight fit, ensuring the stability and reliability of the connection. This design reduces the looseness and displacement of the connection part, improves the stability of the overall structure, and prolongs the service life of the equipment.
[0016] Further, the rotating drive mechanism includes a rotating drive member, a speed reducer, and a synchronous pulley assembly, the output end of the rotating drive member is connected with the speed reducer, the speed reducer is connected with the synchronous pulley assembly, and the synchronous pulley assembly is connected with the rotating shaft.
[0017] In the above scheme, the rotating drive member is connected with the synchronous pulley assembly through the speed reducer, which can realize efficient power transmission and reduce energy loss. The speed reducer increases the torque while reducing the speed, ensuring that the rotating shaft can effectively drive the outer and inner grinding wheels to mix. The synchronous pulley assembly can effectively reduce vibration and impact during rotation, making the sand mixer run more smoothly during operation, reducing vibration and noise of the equipment.
[0018] Further, one end of the sand mixing chamber is provided with a fan-shaped discharge port, an inclined discharge plate is arranged below the discharge port, and the discharge plate is connected with the sand mixing chamber through two baffles.
[0019] In the above scheme, the fan-shaped discharge port design allows the sand to pass through quickly during discharge, reducing the accumulation and blockage of sand at the discharge port and improving discharge efficiency. The inclined discharge plate design allows the sand to flow out evenly during discharge, reducing the retention of sand on the discharge plate and ensuring that the sand can fall quickly and evenly from the discharge plate into the sand collection container.
[0020] This invention discloses a sand mixing device for testing mixed sand in concrete, which has the beneficial effects of improving mixing efficiency and uniformity. A rotary drive mechanism drives a rotating shaft to rotate, thereby rotating a sand mixing mechanism within the mixing chamber. This mixes the artificial sand and fine sand within the mixing chamber. The support block of the sand mixing mechanism is connected to the rotating shaft. The rotation of the rotating shaft drives the support block to rotate, which in turn drives the rollers on both sides of the support block to rotate, mixing the artificial sand and fine sand. A connecting piece connects the dual-shaft drive component and the support block. The dual-shaft drive component can simultaneously drive the inner and outer rollers to rotate. The outer roller is mainly responsible for the sand in most areas between the outer wall and the central area of the mixing chamber, while the inner roller is responsible for the sand near the central area. This mixing of artificial sand and fine sand from both the inner and outer sides of the mixing chamber reduces sand accumulation and localized uneven mixing. Compared to using two rollers, the simultaneous operation of four rollers significantly improves mixing efficiency. Attached Figure Description
[0021] Figure 1 This is a perspective view of a sand mixing device for detecting mixed sand in concrete, according to one embodiment.
[0022] Figure 2 This is a schematic diagram of a grinding wheel mechanism according to one embodiment.
[0023] Figure 3 This is a schematic diagram of a support block structure according to one embodiment.
[0024] Figure 4 This is a schematic diagram of a scraper assembly structure according to one embodiment.
[0025] Figure 5 This is a schematic diagram of the rotation drive mechanism and the bottom of the mixing chamber according to one embodiment.
[0026] Brief Description of Drawings: 1, support frame; 2, sand mixing chamber; 3, rotary drive mechanism; 31, rotary drive; 32, speed reducer; 33, synchronous pulley assembly; 4, rotating shaft; 5, sand mixing mechanism; 51, support block; 511, main body; 512, connecting shaft; 513, connecting block; 5131, connecting hole; 52, roller assembly; 521, connecting piece; 5211, first connecting barrel; 5212, connecting strip; 5213, second connecting barrel; 522, double-shaft drive; 523, outer roller; 524, inner roller; 53, sand scraping assembly; 531, support rod; 532, scraper; 6, convex point; 7, discharge port; 8, discharge plate; 9, baffle. DETAILED DESCRIPTION
[0027] A kind of sand mixing device for concrete mixed sand detection will be further described in detail below with specific examples and drawings.
[0028] As shown in Figure 1 and Figure 2 , in a preferred embodiment, a kind of sand mixing device for concrete mixed sand detection of the utility model, including support frame 1 and sand mixing chamber 2, support frame 1 is installed with rotary drive mechanism 3, rotary drive mechanism 3 is connected with rotating shaft 4, rotating shaft 4 is along vertical direction and is arranged in sand mixing chamber 2, rotating shaft 4 is connected with sand mixing mechanism 5 in sand mixing chamber 2, sand mixing mechanism 5 includes support block 51 and roller assembly 52, two groups of roller assembly 52 are connected with support block 51 and are located at the two sides of the long side of support block 51, roller assembly 52 includes connecting piece 521, double-shaft drive 522, inner roller 524 and outer roller 523, connecting piece 521 is connected with one end of support block 51, double-shaft drive 522 is close to the other end of support block 51 and is connected with connecting piece 521, inner roller 524 and outer roller 523 are connected with double-shaft drive 522, inner roller 524 is close to the center of sand mixing chamber 2, and outer roller 523 is close to the side wall of sand mixing chamber 2.
[0029] Rotary drive mechanism 3 is used to drive rotating shaft 4 to rotate, drives sand mixing mechanism 5 in sand mixing chamber 2 to rotate, thereby mixes artificial sand and fine sand in sand mixing chamber 2, the support block 51 of sand mixing mechanism 5 is connected with rotating shaft 4, rotating shaft 4 drives support block 51 to rotate, thereby drives the roller on the two sides of support block 51 to rotate and mixes artificial sand and fine sand, the connection of double-shaft drive 522 and support block 51 is realized through connecting piece 521, double-shaft drive 522 can drive inner roller 524 and outer roller 523 to rotate simultaneously, outer roller 523 is mainly responsible for the sand material in the most area between the outer wall and the central area of sand mixing chamber 2, and inner roller 524 is responsible for the sand material close to the central area, so that artificial sand and fine sand are mixed from the two sides of sand mixing chamber 2, the problems of sand material accumulation and local mixing unevenness are reduced, and compared with two rollers, four rollers working simultaneously can significantly improve the mixing efficiency.
[0030] As shown in Figures 1 to 3 some embodiments, the support block 51 comprises a main body 511, two connecting shafts 512 and a connecting block 513, the two connecting shafts 512 are connected to the long edges of the main body 511 and located at the two ends of the diagonal line of the main body 511, and the connecting block 513 is connected to the short edge of the main body 511. The two connecting shafts 512 are used to connect the connecting piece 521, and the connecting shafts 512 are located at the two ends of the diagonal line of the main body 511, so that the outer mill roller 523 and the inner mill roller 524 connected with the connecting shafts 512 are supported on the diagonal line of the support block 51, and the connecting block 513 is used to connect other structures, and this structure design can maximize the use of the space in the sand mixing chamber 2. Through the support of the connecting shafts 512, the mill roller assembly 52 can work more stably, thereby improving the stirring effect and ensuring the uniform mixing of the sand.
[0031] As shown in Figures 1 to 3 some embodiments, the connecting piece 521 comprises a first connecting cylinder 5211, a connecting strip 5212 and a second connecting cylinder 5213, the first connecting cylinder 5211 is sleeved on the connecting shaft 512, the two ends of the connecting strip 5212 are respectively connected with the first connecting cylinder 5211 and the second connecting cylinder 5213, and the second connecting cylinder 5213 is sleeved on the double-shaft driving piece 522. The double-shaft driving piece 522 is a double-shaft reduction motor, and the whole is in a cylindrical shape, so that the second connecting cylinder 5213 can be sleeved on the double-shaft driving piece 522, and the two output shafts of the double-shaft driving piece 522 respectively drive the outer mill roller 523 and the inner mill roller 524 to rotate. This design makes the outer mill roller 523 and the inner mill roller 524 more evenly distributed in the entire sand mixing chamber 2, ensuring that the sand at the center to the edge can be fully mixed; the first connecting cylinder 5211 is sleeved on the connecting shaft 512, which can ensure that the connection between the connecting piece 521 and the support block 51 is more stable, reducing the vibration and displacement generated during stirring, and improving the stability of the structure.
[0032] As shown in Figure 2 some embodiments, a plurality of semispherical convex points 6 are arranged on the outer mill roller 523 and the inner mill roller 524. The semispherical convex points 6 can increase the contact area between the outer mill roller 523 and the inner mill roller 524 and the sand, thereby increasing the friction. This design makes the sand more easily lifted and turned during stirring, enhancing the uniformity and completeness of stirring, and in addition, the semispherical convex points 6 can produce point impact force on the sand when rotating, which helps to break the lumps in the sand, ensuring the full mixing of the sand.
[0033] As shown in Figure 2 and Figure 4As shown in the drawings, in some embodiments, a sand scraping assembly 53 is further included, which comprises a support rod 531 and an arc-shaped scraper 532, the head of the support rod 531 is connected with the connecting block 513, and the tail of the support rod 531 is connected with the scraper 532. The head of the support block 51 is connected with the connecting block 513, so that the support block 51 can drive the support rod 531 to rotate, thereby driving the arc-shaped scraper 532 to rotate. The arc-shaped scraper 532 can ensure that the artificial sand and fine sand in the sand mixing chamber 2 are always in a dynamic mixing state, thereby improving the efficiency and uniformity of mixing.
[0034] As shown in the drawings, Figure 2 , Figure 3 and Figure 4 , in some embodiments, a cylindrical connecting hole 5131 is arranged on the connecting block 513, and the head of the support rod 531 is cylindrical and is arranged in the connecting hole 5131. The cylindrical connecting hole 5131 and the cylindrical head of the support rod 531 can be tightly matched to ensure the stability and reliability of the connection. This design reduces the looseness and displacement of the connection part, improves the stability of the overall structure, and thus prolongs the service life of the equipment.
[0035] As shown in the drawings, Figure 5 , in some embodiments, the rotary drive mechanism 3 comprises a rotary drive 31, a speed reducer 32 and a synchronous pulley assembly 33. The output end of the rotary drive 31 is connected with the speed reducer 32, the speed reducer 32 is connected with the synchronous pulley assembly 33, and the synchronous pulley assembly 33 is connected with the rotary shaft 4. The rotary drive 31 is connected with the synchronous pulley assembly 33 through the speed reducer 32, which can realize efficient power transmission and reduce energy loss. The speed reducer 32 can reduce the speed and increase the torque at the same time, which can ensure that the rotary shaft 4 can effectively drive the outer mill 523 and the inner mill 524 to stir. The transmission mode of the synchronous pulley assembly 33 can effectively reduce the vibration and impact during rotation, so that the sand mixer runs more smoothly during work, and the vibration and noise of the equipment are reduced.
[0036] As shown in the drawings, Figure 5 , in some embodiments, one end of the sand mixing chamber 2 is provided with a fan-shaped discharge port 7, and an inclined discharge plate 8 is arranged below the discharge port 7. The discharge plate 8 is connected with the sand mixing chamber 2 through two baffles 9. The fan-shaped discharge port 7 design enables the sand to pass through quickly when discharging, reducing the accumulation and blockage of sand in the discharge port 7, improving the discharging efficiency. The inclined discharge plate 8 design enables the sand to flow out uniformly when discharging, reducing the retention of sand on the discharge plate 8, and ensuring that the sand can quickly and uniformly fall into the container for collecting sand from the discharge plate 8.
[0037] The utility model discloses a sand mixing device working principle and process for concrete mixed sand detection, when preparing mixed sand for concrete, artificial sand and fine sand are poured into sand mixing chamber 2, start rotating drive mechanism 3, rotating drive mechanism 3 drives rotating shaft 4 to rotate, thereby drive support block 51 to rotate, start double shaft driving part 522 simultaneously, double shaft driving part 522 drives outer mill 523 and inner mill 524 to rotate, so that outer mill 523 and inner mill 524 rotate simultaneously and make circular motion in sand mixing chamber 2 to realize the mixing of artificial sand and fine sand, support block 51 rotates and also drive sand scraping assembly 53 to rotate, sand scraping assembly 53 constantly pushes the sand material of artificial sand and fine sand in sand material sand mixing chamber 2 to be always in dynamic mixing state.
[0038] In the description of the utility model, it is understood that the orientation or position relation of the terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.
[0039] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.
[0040] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0041] Although the description of the utility model is combined with the above specific embodiments, it is obvious that many substitutions, modifications and changes can be made according to the above content for the person skilled in the art. Therefore, all such alternatives, improvements and changes are included in the spirit and scope of the appended claims.
Claims
1. A sand mixing device for detecting concrete mixing sand, characterized by, The sand mixing device comprises a support frame and a sand mixing chamber, a rotating driving mechanism is installed on the support frame, a rotating shaft is connected to the rotating driving mechanism, the rotating shaft penetrates the sand mixing chamber in the vertical direction, the rotating shaft is connected to a sand mixing mechanism in the sand mixing chamber, the sand mixing mechanism comprises a support block and a roller assembly, two groups of the roller assembly are connected to the support block and located on both sides of the long side of the support block, the roller assembly comprises a connecting piece, a double-shaft driving piece, an inner roller and an outer roller, the connecting piece is connected to one end of the support block, the double-shaft driving piece is close to the other end of the support block and connected to the connecting piece, the inner roller and the outer roller are connected to the double-shaft driving piece, the inner roller is close to the center of the sand mixing chamber, and the outer roller is close to the side wall of the sand mixing chamber.
2. The sand mixing device for concrete mixing sand detection according to claim 1, characterized by, The support block comprises a main body, connecting shafts and a connecting block, the connecting shafts are connected to the long side of the main body and located at the two ends of the diagonal line of the main body, and the connecting block is connected to the short side of the main body.
3. The sand mixing device for concrete mixing sand detection according to claim 2, characterized in that, The connecting piece comprises a first connecting cylinder, a connecting strip and a second connecting cylinder, the first connecting cylinder is sleeved on the connecting shaft, the connecting strip is connected to the first connecting cylinder and the second connecting cylinder at two ends respectively, and the second connecting cylinder is sleeved on the double-shaft driving piece.
4. The sand mixing device for concrete mixing sand detection according to claim 1, characterized by, A plurality of semispherical convex points are arranged on the outer roller and the inner roller.
5. The sand mixing device for concrete mixing sand detection according to claim 2, characterized by, The sand scraping assembly comprises a support rod and an arc-shaped scraper, the head of the support rod is connected to the connecting block, and the tail of the support rod is connected to the scraper.
6. The sand mixing device for concrete mixing sand detection according to claim 5, characterized by, A cylindrical connecting hole is arranged on the connecting block, the head of the support rod is in a cylindrical shape, and the head of the support rod penetrates the connecting hole.
7. The sand mixing device for concrete mixing sand detection according to claim 1, characterized by, The rotating driving mechanism comprises a rotating driving piece, a speed reducer and a synchronous pulley assembly, the output end of the rotating driving piece is connected to the speed reducer, the speed reducer is connected to the synchronous pulley assembly, and the synchronous pulley assembly is connected to the rotating shaft.
8. The sand mixing device for concrete mixing sand detection according to claim 1, characterized by, One end of the sand mixing chamber is provided with a fan-shaped discharging port, an inclined discharging plate is arranged below the discharging port, and the discharging plate is connected to the sand mixing chamber through two baffles.