Gravel quantitative batching device

Abstract

The invention relates to the field of concrete raw material quantitative batching, and discloses a gravel quantitative batching device which comprises a batching tank, a connecting shaft is coaxially installed in the batching tank, the connecting shaft is in power connection with a first motor arranged on the outer surface of the batching tank, and a batching component is arranged on the outer circle face of the connecting shaft. A plurality of groups of batching components are arranged in the circumferential direction of the connecting shaft in an array mode and comprise connecting frames connected with the connecting shaft, measuring cylinders are installed on the connecting frames, material holes are formed in the upper end face of the batching tank, and in the process that the batching components rotate along with the connecting shaft, the measuring cylinders can be coaxial with the material holes; the upper opening ends of the measuring cylinders of all the batching components are connected through annular plates, avoiding holes used for avoiding the upper openings of the measuring cylinders are formed in the annular plates, and the upper end faces of the annular plates are attached to the upper cavity wall of the batching tank.

Description

Technical Field

[0001] The invention relates to the field of concrete production, in particular to the field of quantitative batching of concrete raw materials, and in particular to a sand and gravel quantitative batching device. Background Art

[0002] Concrete is made of cement, sand and gravel aggregates in a certain ratio and mixed thoroughly. It is widely used in civil engineering. Accurate and quantitative supply of the required sand and gravel raw materials is one of the factors affecting the quality of concrete. Based on the quantitative supply of sand and gravel raw materials, some existing technologies have been found through searching, and they are introduced one by one:

[0003] The Chinese utility model patent with authorization announcement number CN206999315U discloses a quantitative proportioning device for building concrete, which uses a first and a second weighing scale to weigh cement and sand and gravel respectively. After reaching the required weight, the material release flap is opened to allow cement and sand and gravel to fall into a loading tool. Although this method can achieve quantitative supply of raw materials, on the one hand, the weighing scale is an electronic device, and the amount of concrete used in civil engineering is very large, resulting in a very large amount of raw materials required for one batching. Long-term use can easily cause the weighing scale to be damaged and the accuracy to deteriorate. On the one hand, the raw materials are easily damp and compacted, and it is impossible to initially crush the compacted raw materials into smaller particles, and the compacted raw materials require a longer period of stirring to achieve sufficient mixing. On the other hand, after the weighing reaches the required weight, when the material release flap is opened for output, some of the raw materials will remain in the transfer hopper, which can easily lead to inaccurate batching accuracy.

[0004] The Chinese utility model patent with authorization announcement number CN221066737U discloses a concrete batching device, which pours the ingredients into the batching pipe in order according to their specific gravity, and then drives the sealing plate to rise through a screw to make the various ingredients reach the highest point in the batching pipe, and then flips the batching pipe to pour the ingredients into the mixing box. This method also has the above-mentioned problems of not being able to initially crush the compacted raw materials and having some raw materials remaining. In addition, this method cannot control the pouring speed of the ingredients and cannot cooperate with the mixing box to improve the mixing effect and efficiency.

[0005] Based on the above, the present invention proposes a sand and gravel quantitative batching device. Summary of the invention

[0006] In order to solve the problems mentioned in the above background, the present invention provides a sand and gravel quantitative batching device.

[0007] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows.

[0008] A quantitative batching device for sand and gravel comprises a batching tank, a connecting shaft is coaxially installed in the batching tank, the connecting shaft forms a power connection with a motor arranged on the outer surface of the batching tank, a batching component is arranged on the outer cylindrical surface of the connecting shaft, and a plurality of groups of the batching components are arranged in an array along the circumferential direction of the connecting shaft, the batching component comprises a connecting frame connected to the connecting shaft, a measuring cylinder is installed on the connecting frame, a material hole is opened on the upper end surface of the batching tank, when the batching component rotates together with the connecting shaft, the measuring cylinder can be coaxial with the material hole, a hopper is extended from the upper orifice of the material hole, the upper open ends of the measuring cylinders of all the batching components are connected by a ring plate, a avoidance hole for avoiding the opening on the measuring cylinder is arranged on the ring plate, and the upper end surface of the ring plate is in contact with the upper cavity wall of the batching tank.

[0009] Further, the number of the batching components is equal to twice the number of the batching holes.

[0010] Furthermore, the upper and lower ends of the measuring cylinder are open, a sealing plug is provided inside the measuring cylinder, a lifting bracket is provided at the bottom of the sealing plug, the lifting bracket is threadedly connected to a screw rod vertically installed on the connecting frame, the lifting bracket is slidingly connected to a guide rail vertically installed on the connecting frame, and the screw rod is poweredly connected to a motor 3 provided on the connecting frame.

[0011] Furthermore, the plug includes a base capable of forming a sealed sliding guide with the measuring cylinder, a core shaft coaxially extending from the upper end surface of the base, a cone seat slidably mounted on the upper end surface of the base in the vertical direction, the outer diameter of the cone seat decreases from bottom to top, the maximum outer diameter of the cone seat is equal to the outer diameter of the base, a spring three is arranged between the cone seat and the base, a slot is coaxially arranged at the bottom of the cone seat, the core shaft is inserted into the slot and forms a sealed sliding guide;

[0012] A movable bracket is installed on the connecting frame, a vibration component is installed on the movable bracket, and the vibration component and the core shaft are connected through an oil pipeline.

[0013] Further, the vibration assembly includes a vibration bracket slidably mounted on the movable bracket, springs 1 are arranged on both sides of the connection between the vibration bracket and the movable bracket, two eccentric wheels symmetrically arranged up and down are installed on the vibration bracket, the two eccentric wheels are connected to each other by a gear set with a transmission ratio of 1, and a motor 2 for driving the eccentric wheels to rotate is arranged on the vibration bracket;

[0014] A pump housing is mounted on the connecting frame, a piston is sleeved in the pump housing, a piston rod is extended from the end of the piston, the piston rod is parallel to the sliding direction of the vibration bracket and the two are in contact, a spring is also sleeved in the pump housing, the elastic force of the spring is used to drive the piston rod to move closer to the vibration bracket, a core hole is penetrated at the end of the core shaft, and an oil pipeline is arranged between the core hole and the pump housing.

[0015] Furthermore, a plurality of friction components are arranged in an array along a circumferential direction in the base, the friction components include radial holes arranged radially on the outer circumferential surface of the base, a friction seat is slidably installed in the radial holes, a driving component is arranged on the side of the friction seat facing the axis line of the base, the driving component includes a pump casing three, a piston three is sleeved in the pump casing three, a piston rod three extends from the end of the piston three, the piston rod three is parallel to the sliding direction of the friction seat and the two are connected, a bracket body extends from the friction seat, a spring four is arranged between the bracket body and the base, the elastic force of the spring four is used to drive the friction seat to move close to the axis line of the base, an annular tube is arranged in the base, and the annular tube is connected to the pump casing three.

[0016] Furthermore, a sensor for real-time monitoring of the magnitude of the spring's four elastic forces is provided in the base.

[0017] Furthermore, the movable bracket is slidably connected to the connecting frame, and the sliding direction of the movable bracket is parallel to the sliding direction of the vibrating bracket. The connecting frame is provided with a linear module for driving the movable bracket to move;

[0018] A pump casing 2 is installed on the connecting frame. A piston 2 is sleeved in the pump casing 2. A piston rod 2 extends from the end of the piston 2. The piston rod 2 is parallel to the sliding direction of the movable bracket and the two are in contact. A spring 6 is also sleeved in the pump casing 2. The elastic force of the spring 6 is used to drive the piston rod 2 to move closer to the movable bracket. The annular tube and the pump casing 2 are connected through an oil pipeline 2.

[0019] Furthermore, the motor three and the screw rod are connected by a power transmission member, and a power connecting member is arranged between the motor three and the screw rod. The active member of the power connecting member is connected to the screw rod, and the driven member is installed on the output shaft of the motor three through a bearing. A pressure rod is slidably installed on the connecting frame along the vertical direction, and a spring two is arranged between the pressure rod and the connecting frame. The elastic force of the spring two is used to drive the pressure rod to move upward. The bottom of the pressure rod is located directly above the driven member. An inclined surface is arranged on the movable bracket, and the inclined surface contacts the top of the pressure rod. When the movable bracket moves, thereby causing the friction seat to move away from the axis line of the base, the movement of the movable bracket can push the pressure rod downward through the inclined surface.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. When the raw materials fall into the measuring cylinder, the continuous vibration of the cone seat of the plug can make it difficult for there to be cavity gaps between the raw materials, so that the amount of raw materials falling into the measuring cylinder can be more accurate;

[0022] In the process of outputting the raw materials into the batching tank, the continuous vibration of the sealed cone seat can, on the one hand, control the output speed of the raw materials by adjusting the size of the gap in the vertical direction. In this solution, the bottom of the batching tank is in a conical shape with a diameter increasing from bottom to top. An output pipe can be arranged at the bottom of the conical tank, and a stirrer is arranged below the output pipe. The raw materials are used for mixing concrete. By controlling the output speed of the concrete raw materials, they are continuously and slowly added to the stirrer, which is beneficial to improving the mixing effect of the concrete. On the other hand, the raw materials will pass through the cone seat when being output, and the cone seat is in a continuous vibration state, so the agglomerated raw materials can be dispersed, which is also beneficial to the subsequent mixing of concrete.

[0023] After the raw material output is completed, the friction seat can be driven to extend and the sealing plug can be driven to move up, so that the friction seat can contact the measuring cylinder. The vibration of the cone seat can be transmitted to the measuring cylinder through the friction seat, and the raw material remaining adhering to the inner wall of the measuring cylinder can be shaken off, thereby avoiding material residue. Of course, in this process, the vibration amplitude can be increased to make it easier to shake off the residual material.

[0024] 2. The setting of the friction seat can play the role of fixing the base of the plug when the raw material falls into the measuring cylinder, thereby preventing the connection between the lifting bracket and the screw from being damaged. In addition, in this scheme, the movement distance of the friction seat can be monitored by the sensor. By comparing the movement distances of the friction seats of different friction components, it can be obtained whether the plug and the measuring cylinder are coaxial. Coaxiality means that the plug has a good sealing effect on the measuring cylinder. If the coaxial deviation is large, it means that there is a large gap between the plug and the measuring cylinder. In the process of the raw material falling into the measuring cylinder, some of the raw materials will directly pass through the gap. Therefore, the batching accuracy is easily affected, and the entire device needs to be maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a schematic diagram of the batching component, the ring plate and the connecting shaft;

[0027] Figure 3 Schematic diagram of the structure of the batching component Figure 1 ;

[0028] Figure 4 Schematic diagram of the structure of the batching component Figure 2 ;

[0029] Figure 5 is a cross-sectional view of a batching component;

[0030] Figure 6 It is a schematic diagram of a vibration assembly, a movable bracket and a pressure rod;

[0031] Figure 7 It is a schematic diagram of the power route between the screw rod and the second motor;

[0032] Figure 8 It is a schematic diagram of the connection between the sealing plug, the piston rod 1 and the piston rod 2;

[0033] Fig. 9 Schematic diagram of the base and friction assembly.

[0034] The reference numerals in the accompanying drawings are:

[0035] 100, batching tank; 101, hopper; 102, motor 1; 103, connecting shaft; 104, ring plate; 200, batching component; 201, connecting frame; 202, movable bracket; 203, linear module; 204, vibration component; 2041, vibration bracket; 2042, spring 1; 2043, eccentric wheel; 2044, gear set; 2045, motor 2; 205, measuring cylinder; 206, lifting bracket; 207, sealing Plug; 2071, base; 2072, cone seat; 2073, slot; 2074, spring three; 208, screw rod; 209, motor three; 210, pressure rod; 211, spring two; 212, power connector; 213, piston rod one; 214, piston rod two; 215, oil pipeline one; 216, oil pipeline two; 217, core shaft; 218, ring tube; 219, drive component; 220, friction seat; 221, spring four. DETAILED DESCRIPTION

[0036] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0037] Reference Figure 1-Figure 9 A sand and gravel quantitative batching device includes a batching tank 100, in which a connecting shaft 103 is coaxially installed. The connecting shaft 103 is driven to rotate by a motor 102 arranged on the outer surface of the batching tank 100, and a batching component 200 is arranged on the outer cylindrical surface of the connecting shaft 103. The batching component 200 is arranged in a plurality of groups in an array along the circumferential direction of the connecting shaft 103.

[0038] The batching component 200 includes a connecting frame 201 connected to the connecting shaft 103, and a measuring cylinder 205 is installed on the connecting frame 201. A material hole is opened on the upper end surface of the batching tank 100. When the batching component 200 rotates with the connecting shaft 103, the measuring cylinder 205 can be coaxial with the material hole, and a hopper 101 extends from the upper opening of the material hole.

[0039] The open ends of the measuring cylinders 205 of all the batching components 200 are connected by the ring plate 104. In addition, the ring plate 104 is provided with a avoidance hole for avoiding the opening of the measuring cylinder 205. The upper end surface of the ring plate 104 is in contact with the upper cavity wall of the batching tank 100.

[0040] In addition, preferably, the number of batching components 200 is equal to twice the number of material holes. The significance of this is that when batching, the raw materials fall into the measuring cylinder 205. When the measuring cylinder 205 is filled with a preset amount of raw materials, the connecting shaft 103 is driven to rotate by the motor 102, so that the next group of empty batching components 200 rotate to the bottom of the hopper 101 to receive the materials, while the batching components 200 filled with the raw materials rotate to the side to discharge the materials.

[0041] Reference Figure 3 and Figure 4 In order to facilitate the control of the discharging speed and the adjustment of the preset amount when the measuring cylinder 205 is filled with raw materials, the upper and lower ends of the measuring cylinder 205 are opened, and a plug 207 is provided inside the measuring cylinder 205. A lifting bracket 206 is provided at the bottom of the plug 207. The lifting bracket 206 is threadedly connected with a screw rod 208 vertically installed on the connecting frame 201. The lifting bracket 206 is also slidably connected with a guide rail vertically installed on the connecting frame 201. When the screw rod 208 is driven to rotate by the motor three 209, the lifting bracket 206 and the plug 207 can be driven to move in the vertical direction.

[0042] Reference Figure 8 The plug 207 includes a base 2071 that can form a sealed sliding guide with the measuring cylinder 205. A core shaft 217 extends coaxially on the upper end surface of the base 2071. A conical seat 2072 is slidably installed on the upper end surface of the base 2071 along the vertical direction. The outer diameter of the conical seat 2072 decreases from bottom to top. The maximum outer diameter of the conical seat 2072 is equal to the outer diameter of the base 2071. A spring 2074 is arranged between the conical seat 2072 and the base 2071. In addition, a slot 2073 is coaxially arranged on the bottom of the conical seat 2072. The core shaft 217 is inserted into the slot 2073 to form a sealed sliding guide.

[0043] Reference Figure 3 and Figure 4 The connecting frame 201 is provided with a vibration assembly 204, and the vibration assembly 204 is connected to the core shaft 217 through an oil pipeline 215. For details, refer to Figure 6A movable bracket 202 is installed on the connecting frame 201, and the vibration component 204 includes a vibration bracket 2041 slidably installed on the movable bracket 202. Springs 1 2042 are provided on both sides of the connection between the vibration bracket 2041 and the movable bracket 202. Two eccentric wheels 2043 arranged symmetrically in an upper and lower manner are installed on the vibration bracket 2041. The two eccentric wheels 2043 are dynamically connected through a gear set 2044 with a transmission ratio of one. A motor 2 2045 for driving any one of the eccentric wheels 2043 to rotate is provided on the vibration bracket 2041. In this way, when the motor 2 2045 is started, it can drive the vibration bracket 2041 to vibrate.

[0044] Reference Figure 5 , Figure 6 and Figure 8 A pump housing 1 is installed on the connecting frame 201, and a piston 1 is sleeved in the pump housing 1. A piston rod 1 213 extends from the end of the piston 1. The piston rod 1 213 is parallel to the sliding direction of the vibration bracket 2041 and the two are in contact. A spring 5 is also sleeved in the pump housing 1. The elastic force of the spring 5 is used to drive the piston rod 1 213 to move closer to the vibration bracket 2041.

[0045] A core hole is provided at the end of the core shaft 217, and the oil pipeline 1 215 is provided between the core hole and the pump housing 1.

[0046] When the vibration bracket 2041 vibrates, it cooperates with the spring five to drive the piston to reciprocate in the pump housing one, thereby pushing the hydraulic oil into the slot 2073 or extracting the hydraulic oil in the slot 2073, thereby driving the cone seat 2072 to reciprocate in the vertical direction, that is, vibrate.

[0047] Furthermore, although the method of driving the plug 207 to move by the screw rod 208 can be more accurate, since the amount of raw materials is large and heavy each time the concrete raw materials are batched, it is easy to cause the screw rod 208 to be damaged. In order to avoid this problem, refer to Figure 6 , Figure 8 and Fig. 9A plurality of friction components are arranged in an array along the circumferential direction in the base 2071. The friction components include radial holes arranged radially on the outer circumferential surface of the base 2071. A friction seat 220 is slidably installed in the radial holes. A driving component 219 is arranged on the side of the friction seat 220 facing the axis of the base 2071. The driving component 219 includes a pump housing 3. A piston 3 is sleeved in the pump housing 3. A piston rod 3 extends from the end of the piston 3. The piston rod 3 is parallel to the sliding direction of the friction seat 220 and the two are connected. In addition, the friction seat 220 A bracket body is also extended on it, and a spring four 221 is arranged between the bracket body and the base 2071. The elastic force of the spring four 221 is used to drive the friction seat 220 to move close to the axis line of the base 2071. In addition, a sensor for real-time monitoring of the elastic force of the spring four 221 is also arranged in the base 2071, such as pressure sensor technology, which is achievable with existing technology and will not be elaborated on. By monitoring the elastic force of the spring four 221, the compression amount of the spring four 221 is obtained, and finally the movement distance of the friction seat 220 is obtained.

[0048] An annular tube 218 is disposed in the base 2071 and is connected to the pump housing.

[0049] Reference Figure 5-Figure 7 The movable bracket 202 is slidably connected to the connecting frame 201 and the sliding direction of the movable bracket 202 is parallel to the sliding direction of the vibration bracket 2041. The connecting frame 201 is provided with a linear module 203 for driving the movable bracket 202 to move.

[0050] A pump housing 2 is installed on the connecting frame 201. A piston 2 is sleeved inside the pump housing 2. A piston rod 214 extends from the end of the piston 2. The piston rod 214 is parallel to the sliding direction of the movable bracket 202 and the two are in contact. A spring 6 is also sleeved inside the pump housing 2. The elastic force of the spring 6 is used to drive the piston rod 214 to move closer to the movable bracket 202.

[0051] The annular tube 218 is connected to the second pump housing via the second oil pipeline 216 .

[0052] The movable bracket 202 can be driven to move through the linear module 203, so that the piston rod 214 pushes the piston 2 to move in the pump housing 2, pushes the hydraulic oil, and drives the piston 3 to move in the pump housing 3, and finally causes the friction seat 220 to move away from the axis of the base 2071, and the spring 4 221 is compressed. Conversely, the movable bracket 202 moves in the opposite direction, and the spring 4 221 releases the elastic force, causing the friction seat 220 to move closer to the axis of the base 2071.

[0053] Preferred embodiment, refer to Figure 6 and Figure 7The motor 3 209 and the screw rod 208 are connected to each other through a power transmission member. In addition, a power connection member 212 is provided between the motor 3 209 and the screw rod 208. The active member of the power connection member 212 is connected to the screw rod 208, and the driven member is installed on the output shaft of the motor 3 209 through a bearing. A pressure rod 210 is slidably installed on the connecting frame 201 along the vertical direction. A spring 211 is provided between the pressure rod 210 and the connecting frame 201. The elastic force of the spring 211 is used to drive the pressure rod 210 to move upward. The bottom of the rod 210 is located directly above the follower, and the movable bracket 202 is provided with an inclined surface, which contacts the top of the pressure rod 210. When the movable bracket 202 moves, causing the friction seat 220 to move away from the axis of the base 2071, the movement of the movable bracket 202 can push the pressure rod 210 downward through the inclined surface, so that the pressure rod 210 presses against the follower. At this time, the follower of the power connecting member 212 is limited and locked, and the screw rod 208 cannot rotate, so that the plug 207 can maintain the current position height unchanged.

[0054] Working principle of the present invention:

[0055] First, the motor 3 209 drives the screw rod 208 to rotate, thereby driving the plug 207 to move upward in the vertical direction until the plug 207 is located at a preset position in the measuring cylinder 205, and then the motor 3 209 stops running;

[0056] Then, the linear module 203 drives the movable bracket 202 to move, thereby driving the friction seat 220 to extend and form an inner clamp with the inner wall of the measuring cylinder 205;

[0057] Then, the motor 102 drives the connecting shaft 103 to rotate, and the measuring cylinder 205 rotates together, so that the raw material falls into the measuring cylinder 205. During the falling process, the vibration component 204 is started, driving the cone seat 2072 of the sealing plug 207 to vibrate up and down. The significance of this is that if there is no vibration, there will be cavity gaps between the raw materials, resulting in the amount of raw materials loaded in the measuring cylinder 205 being less than the preset value. The vibration can make the amount of raw materials falling into the measuring cylinder 205 more accurate.

[0058] After the measuring cylinder 205 is filled with raw materials, the motor 102 drives the connecting shaft 103 to rotate, so that the next empty measuring cylinder 205 is located below the material hole, and the measuring cylinder 205 filled with raw materials is transferred to the side for raw material discharge. Specifically:

[0059] First, the linear module 203 drives the movable bracket 202 to move in the reverse direction, and the friction seat 220 and the inner wall of the measuring cylinder 205 are released;

[0060] Then, the motor 209 drives the screw rod 208 to rotate, thereby driving the plug 207 to move downward in the vertical direction until there is a gap between the plug 207 and the lower opening of the measuring cylinder 205. At this time, the raw material continues to fall downward through the gap, and the vibration component 204 is continuously started to drive the cone seat 2072 to vibrate. The significance of this is that, on the one hand, by adjusting the size of the gap in the vertical direction, the output speed of the raw material can be controlled. In this solution, the bottom of the batching tank 100 is in a conical shape with a diameter increasing from bottom to top. An output pipe can be set at the bottom of the conical tank, and a stirrer is set below the output pipe. The raw material is used for mixing concrete. By controlling the output speed of the concrete raw material, it is continuously and slowly added to the stirrer, which is beneficial to improving the mixing effect of the concrete. On the other hand, the raw material will pass through the cone seat 2072 when it is output, and the cone seat 2072 is in a continuous vibration state, so the agglomerated raw material can be broken up, which is also beneficial to the subsequent concrete mixing.

[0061] After the raw material output is completed, the friction seat 220 can be driven to extend and the plug 207 can be driven to move upward, so that the friction seat 220 contacts the measuring cylinder 205. The vibration of the conical seat 2072 can be transmitted to the measuring cylinder 205 through the friction seat 220, and the raw material remaining adhering to the inner wall of the measuring cylinder 205 can be shaken off, thereby avoiding material residue. Of course, in this process, the vibration amplitude can be increased to make it easier to shake off the residual material.

[0062] In addition, in this solution, the movement distance of the friction seat can be monitored by the sensor. By comparing the movement distances of the friction seats of different friction components, it can be determined whether the plug and the measuring cylinder are coaxial. Coaxiality means that the plug has a good sealing effect on the measuring cylinder. A large coaxial deviation means that there is a large gap between the plug and the measuring cylinder. In the process of the raw materials falling into the measuring cylinder, some of the raw materials will directly pass through the gap. Therefore, the batching accuracy is easily affected, and the entire device needs to be maintained.

[0063] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A sand and gravel quantitative batching device, comprising a batching tank (100), wherein a connecting shaft (103) is coaxially installed in the batching tank (100), and the connecting shaft (103) is connected to a motor (102) arranged on the outer surface of the batching tank (100) to form a power connection, characterized in that: The outer circumferential surface of the connecting shaft (103) is provided with a batching component (200), and a plurality of batching components (200) are arranged in an array along the circumferential direction of the connecting shaft (103). The batching component (200) comprises a connecting frame (201) connected to the connecting shaft (103), and a measuring cylinder (205) is installed on the connecting frame (201). A material hole is opened on the upper end surface of the batching tank (100). When the batching component (200) rotates together with the connecting shaft (103), the measuring cylinder (205) can be coaxial with the material hole, and a hopper (101) extends from the upper opening of the material hole. The upper open ends of the measuring cylinders (205) of all the batching components (200) are connected by a ring plate (104), and a avoidance hole for avoiding the upper opening of the measuring cylinder (205) is provided on the ring plate (104). The upper end surface of the ring plate (104) is in contact with the upper cavity wall of the batching tank (100).

2. A sand and gravel quantitative batching device according to claim 1, characterized in that: The number of the dispensing members (200) is equal to twice the number of the dispensing holes.

3. A sand and gravel quantitative batching device according to claim 1, characterized in that: The measuring cylinder (205) is open at both ends, a sealing plug (207) is sleeved inside the measuring cylinder (205), a lifting bracket (206) is arranged at the bottom of the sealing plug (207), the lifting bracket (206) is threadedly connected to a screw rod (208) vertically installed on the connecting frame (201), the lifting bracket (206) is slidably connected to a guide rail vertically installed on the connecting frame (201), and the screw rod (208) is poweredly connected to a motor 3 (209) arranged on the connecting frame (201).

4. A sand and gravel quantitative batching device according to claim 3, characterized in that: The sealing plug (207) comprises a base (2071) capable of forming a sealed sliding guide with the measuring cylinder (205); a core shaft (217) coaxially extends from the upper end surface of the base (2071); a cone seat (2072) is slidably mounted on the upper end surface of the base (2071) in a vertical direction; the outer diameter of the cone seat (2072) decreases from bottom to top; the maximum outer diameter of the cone seat (2072) is equal to the outer diameter of the base (2071); a spring (2074) is arranged between the cone seat (2072) and the base (2071); a slot (2073) is coaxially arranged at the bottom of the cone seat (2072); the core shaft (217) is inserted into the slot (2073) to form a sealed sliding guide; A movable bracket (202) is installed on the connecting frame (201), a vibration component (204) is installed on the movable bracket (202), and the vibration component (204) and the core shaft (217) are connected via an oil pipeline (215).

5. A sand and gravel quantitative batching device according to claim 4, characterized in that: The vibration assembly (204) comprises a vibration bracket (2041) slidably mounted on a movable bracket (202); springs (2042) are arranged on both sides of the connection between the vibration bracket (2041) and the movable bracket (202); two eccentric wheels (2043) arranged symmetrically in the upper and lower directions are mounted on the vibration bracket (2041); a gear set (2044) with a transmission ratio of one is used to form a power connection between the two eccentric wheels (2043); and a motor (2045) for driving the eccentric wheels (2043) to rotate is arranged on the vibration bracket (2041); A pump housing 1 is mounted on the connecting frame (201), a piston 1 is sleeved in the pump housing 1, a piston rod 1 (213) extends from the end of the piston 1, the piston rod 1 (213) is parallel to the sliding direction of the vibration bracket (2041) and the two are in contact, a spring 5 is also sleeved in the pump housing 1, the elastic force of the spring 5 is used to drive the piston rod 1 (213) to move closer to the vibration bracket (2041), a core hole is penetrated at the end of the core shaft (217), and an oil pipeline 1 (215) is arranged between the core hole and the pump housing 1.

6. A sand and gravel quantitative batching device according to claim 4, characterized in that: A plurality of groups of friction components are arranged in an array along the circumferential direction in the base (2071), the friction components comprising radial holes arranged radially on the outer circumferential surface of the base (2071), a friction seat (220) being slidably mounted in the radial holes, a driving component (219) being arranged on the side of the friction seat (220) facing the axis of the base (2071), the driving component (219) comprising a pump housing (3), a piston (3) being sleeved in the pump housing (3), a piston rod (3) extending from the end of the piston (3), the piston rod (3) being parallel to the sliding direction of the friction seat (220) and the two being connected, a bracket body extending from the friction seat (220), a spring (4) (221) being arranged between the bracket body and the base (2071), the elastic force of the spring (4) (221) being used to drive the friction seat (220) to move close to the axis of the base (2071), an annular tube (218) being arranged in the base (2071), the annular tube (218) being connected to the pump housing (3).

7. A sand and gravel quantitative batching device according to claim 6, characterized in that: A sensor for real-time monitoring of the elastic force of the spring four (221) is arranged inside the base (2071).

8. The sand and gravel quantitative batching device according to claim 6, characterized in that: The movable bracket (202) is slidably connected to the connecting bracket (201), and the sliding direction of the movable bracket (202) is parallel to the sliding direction of the vibration bracket (2041). The connecting bracket (201) is provided with a linear module (203) for driving the movable bracket (202) to move; A pump housing 2 is mounted on the connecting frame (201). A piston 2 is sleeved inside the pump housing 2. A piston rod 2 (214) extends from the end of the piston 2. The piston rod 2 (214) is parallel to the sliding direction of the movable bracket (202) and the two are in contact. A spring 6 is also sleeved inside the pump housing 2. The elastic force of the spring 6 is used to drive the piston rod 2 (214) to move closer to the movable bracket (202). The annular tube (218) and the pump housing 2 are connected via an oil pipeline 2 (216).

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