Concrete mixing device for road and embankment maintenance

Abstract

The application discloses a concrete mixing device for roadbed maintenance, and relates to the technical field of concrete mixing, which comprises a shell, a preparation cylinder arranged in the shell, a mounting plate fixedly connected to the shell, a storage box detachably connected to the upper side of the shell, and a discharging mechanism for intermittently adding water reducing agent arranged at the lower side of the storage box. A mixing mechanism for mixing water reducing agent and water is arranged at the lower side of the discharging mechanism. The concrete mixing device is provided with a stirring mechanism for mixing and stirring concrete. The upper bevel gear and the lower bevel gear are arranged to rotate in different directions through a connecting frame and a right bevel gear. The upper bevel gear drives the inner stirring plate to rotate through a rotating shaft. The lower bevel gear drives the outer stirring plate to reversely rotate through a rotating sleeve and a connecting ring. The inner stirring plate and the outer stirring plate are arranged to rotate in different directions, so that the concrete raw materials, water and water reducing agent are fully mixed.

Description

Technical Field

[0001] This invention relates to the field of concrete mixing technology, specifically to a concrete mixing device for road and subgrade maintenance. Background Technology

[0002] Road surface and subgrade maintenance refers to the upkeep and maintenance of roads, including their structures and facilities. This aims to maintain road performance as much as possible, promptly restore damaged sections, ensure safe, comfortable, and smooth traffic flow, save transportation costs and time, and improve project quality by adopting appropriate technical measures. It also extends the road's service life and postpones reconstruction. While concrete mixing equipment is required for road surface and subgrade maintenance, existing equipment often has low mixing efficiency, reducing user productivity and extending maintenance time.

[0003] Application number CN202110062098.3 discloses a concrete mixing device. It includes a machine body and a mixing tank fixedly installed inside the machine body. A drive mechanism is provided on the side of the mixing tank, and a sliding frame is fixedly installed on the inner wall of the machine body above the drive mechanism. A rack is slidably installed inside the sliding frame, and a return spring is connected to the sliding frame and fixed to the top surface of the rack. A rotating seat is fixedly installed on the upper surface of the machine body, and a rotating shaft is rotatably connected to the rotating seat. The rotating shaft is connected to a gear. This invention, by setting a crankshaft and a first magnetic block, can drive the drive mechanism to move up and down under the drive of a motor, thereby driving the mixing shaft to rotate through a bevel gear set. Simultaneously, under the magnetic action of the first magnetic block, the stirring rod continuously extends and retracts, facilitating increased mixing effect. A second magnetic pusher is also provided.

[0004] The above-mentioned technical solution uses the magnetic force of the first magnetic block to drive the second magnetic pusher to move up and down, thereby pushing the concrete on the side wall of the mixing tank down to clean the inner wall. However, the mixing efficiency is low and the concrete cannot be fully mixed. In addition, in order to improve and adjust the performance of the concrete, concrete additives need to be added during the mixing process. Water-reducing agents are concrete admixtures that can reduce the amount of mixing water while maintaining the slump of the concrete. However, the above-mentioned technical solution usually adds the water-reducing agent all at once, and it is impossible to control the mixing ratio with the concrete raw materials. If too little is added, it will reduce the workability and durability of the concrete. Therefore, a concrete mixing device for road and subgrade maintenance is needed. Summary of the Invention

[0005] The purpose of this invention is to provide a concrete mixing device for roadbed maintenance, so as to solve the problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a concrete mixing device for roadbed maintenance, comprising a shell, a preparation cylinder disposed inside the shell, an installation plate fixedly connected inside the shell, a storage tank detachably connected to the upper side inside the shell, a mixing mechanism for mixing concrete disposed inside the preparation cylinder, a cleaning mechanism for cleaning the inner wall of the preparation cylinder disposed on the surface of the mixing mechanism, a feeding mechanism for intermittently adding water-reducing agent disposed below the storage tank, a mixing mechanism for mixing water-reducing agent and water disposed below the feeding mechanism, and a liquid delivery mechanism for adding the mixture disposed below the mixing mechanism.

[0007] Preferably, the stirring mechanism includes a connecting frame, a right bevel gear, and a rotating sleeve. The stirring mechanism controls the cleaning mechanism to clean the inner wall of the preparation cylinder through the rotating sleeve. The stirring mechanism controls the infusion mechanism to intermittently add the mixed liquid through the right bevel gear. The infusion mechanism includes a piston cylinder, a movable plate, and a drive plate. The infusion mechanism controls the mixing mechanism to mix and stir water and water-reducing agent through the drive plate.

[0008] Preferably, a first motor is fixedly mounted on the lower end face of the mounting plate, and an upper bevel gear is fixedly connected to the output end of the first motor. The upper bevel gear is rotatably connected to the upper side of the connecting frame, and a lower bevel gear is rotatably connected to the lower side of the connecting frame. A right bevel gear is rotatably connected to the right side of the connecting frame, and the upper side of the right bevel gear meshes with the lower side of the upper bevel gear. The lower side of the right bevel gear meshes with the upper side of the lower bevel gear. The connecting frame is fixedly connected to the inside of the housing.

[0009] Preferably, a rotating shaft is fixedly connected to the middle of the upper bevel gear, the rotating sleeve is fixedly connected to the lower end face of the lower bevel gear, the rotating shaft is rotatably connected to the inside of the rotating sleeve, a connecting ring is fixedly connected to the surface of the rotating sleeve, a plurality of connecting shafts are fixedly connected to the lower end face of the connecting ring, an outer stirring plate is rotatably connected to the surface of the connecting shaft, and an inner stirring plate is fixedly connected to the surface of the rotating shaft.

[0010] Preferably, the cleaning mechanism includes a rotating ring, a planetary gear is fixedly connected to the upper inner side of the preparation cylinder, the rotating ring is fixedly connected to the surface of the rotating sleeve, a plurality of transmission shafts are rotatably connected to the lower end face of the rotating ring, a scraper is fixedly connected to the surface of the transmission shaft, the outer end of the scraper slides on the inner side wall of the preparation cylinder, the inner side of the scraper slides on the outer side of the outer stirring plate, and a transmission gear is fixedly connected to the upper surface of the transmission shaft, the transmission gear meshing with the planetary gear.

[0011] Preferably, the piston cylinder is detachably connected to the inside of the housing, and a piston rod is slidably connected inside the piston cylinder. The outer side of the piston rod is fixedly connected to one end of the movable plate, and the other end of the movable plate is fixedly connected to the drive plate. The drive plate is slidably connected to the inside right side, and one end of the driven shaft is fixedly connected to the right end face of the right bevel gear. The other end of the driven shaft is fixedly connected to a rotating disk.

[0012] Preferably, a drive shaft is fixedly connected to the surface of the rotating disk, the drive shaft is slidably connected to the inside of the movable plate, the input end of the piston cylinder is fixedly connected to a liquid inlet pipe, the surface of the preparation cylinder is provided with a liquid inlet, and the output end of the piston cylinder is connected to the liquid inlet through a flexible tube.

[0013] Preferably, the mixing mechanism includes a mixing cylinder, a plurality of limiting rings are rotatably connected inside the mixing cylinder, a stirring blade is fixedly connected inside the limiting rings, a support plate is fixedly connected to the upper side of the drive plate, a lead screw is fixedly connected to the upper side of the support plate, the lead screw is threaded to the middle of the stirring blade, the lower end of the mixing cylinder is connected to the liquid inlet pipe, and the mixing cylinder is connected to an external water source through a water pipe.

[0014] Preferably, the feeding mechanism includes a drive cam on the sealing plate, a second motor is fixedly installed on the upper side of the inside of the housing, the output end of the second motor is fixedly connected to the rear end face of the drive cam, the lower end of the storage box is fixedly connected to a feeding pipe, the lower end of the feeding pipe is connected to the mixing cylinder, an opening is fixedly opened on the left side of the surface of the feeding pipe, and the sealing plate is slidably connected to the inside of the opening.

[0015] Preferably, a sliding rod is fixedly connected to the left end face of the sealing plate, and the left side of the surface of the sliding rod is slidably connected to the right side of the surface of the drive cam. A limiting plate is fixedly connected to the upper inner end face of the housing, and the limiting plate is slidably connected to the surface of the sliding rod. A fixing plate is fixedly connected to the right side of the limiting plate and the surface of the sliding rod. The upper end of the fixing plate is slidably connected to the upper inner end face of the housing. A return spring is sleeved on the surface of the sliding rod, and the left end of the return spring is fixedly connected to the right end of the limiting plate. The right end of the return spring is fixedly connected to the left end of the fixing plate.

[0016] The beneficial effects of this invention are as follows:

[0017] This mixing device uses a mixing mechanism to mix concrete. By connecting the frame and the right bevel gear, the upper and lower bevel gears can rotate in different directions. The upper bevel gear drives the inner mixing plate to rotate via a rotating shaft, while the lower bevel gear drives the outer mixing plate to rotate in the opposite direction via a rotating sleeve and connecting ring. The rotation of the inner and outer mixing plates in different directions ensures that the concrete raw materials, water, and water-reducing agent are fully mixed.

[0018] This mixing device uses a cleaning mechanism to clean the concrete on the inner wall of the mixing cylinder. The rotating sleeve drives the drive shaft to rotate via a rotating ring. The drive gear, through the meshing of planetary gears, drives the drive shaft to rotate, which in turn drives the scraper to rotate. The scraper cleans the concrete adhering to the inner wall of the mixing cylinder while simultaneously cleaning the surface of the outer mixing plate, preventing the adhering concrete from being underutilized and requiring further cleaning by workers. The outer mixing plate rotates around the connecting shaft under the push of the scraper, thereby changing its rotation angle while mixing the concrete inside the mixing cylinder, further improving the mixing effect of the concrete.

[0019] This mixing device intermittently adds water-reducing agent through a feeding mechanism. A sliding rod, driven by a cam and a return spring, moves a sealing plate left and right, causing the water-reducing agent in the storage tank to be intermittently fed into the mixing cylinder through a feeding pipe. A bearing plate drives a lead screw to reciprocate, which in turn drives a threaded limit ring to rotate, achieving the mixing of water and water-reducing agent. The mixed liquid is then fed into the preparation cylinder through a delivery mechanism, thus achieving intermittent addition of water and water. By controlling the mixing of concrete raw materials with water and water-reducing agent, the concrete preparation effect is further improved. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a concrete mixing device for roadbed maintenance proposed in this invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of a concrete mixing device for roadbed maintenance proposed in this invention.

[0022] Figure 3 This is a schematic diagram of the stirring mechanism proposed in this invention;

[0023] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the cleaning mechanism proposed in this invention;

[0025] Figure 6 This is a bottom view of the cleaning mechanism proposed in this invention;

[0026] Figure 7 This is a schematic diagram showing the connection relationship between the infusion mechanism and the mixing mechanism proposed in this invention;

[0027] Figure 8 This is a schematic diagram of the infusion mechanism proposed in this invention;

[0028] Figure 9This is a schematic diagram of the hybrid mechanism proposed in this invention;

[0029] Figure 10 This is a schematic diagram of the feeding mechanism proposed in this invention;

[0030] In the diagram: 1. Shell; 2. Preparation cylinder; 3. Infusion port; 4. Mounting plate; 5. First motor; 6. Second motor; 7. Storage tank; 100. Stirring mechanism; 101. Connecting frame; 102. Right bevel gear; 103. Upper bevel gear; 104. Rotating shaft; 105. Lower bevel gear; 106. Rotating sleeve; 107. Connecting ring; 108. Connecting shaft; 109. Outer stirring plate; 110. Inner stirring plate; 200. Cleaning mechanism; 201. Rotating ring; 202. Planetary gear; 203. Drive shaft; 204. Drive gear; 205. Scraper 300. Infusion mechanism; 301. Piston cylinder; 302. Inlet pipe; 303. Rotating disk; 304. Driven shaft; 305. Piston rod; 306. Movable plate; 307. Drive shaft; 308. Drive plate; 400. Mixing mechanism; 401. Mixing cylinder; 402. Limiting ring; 403. Stirring blade; 404. Lead screw; 405. Bearing plate; 500. Discharge mechanism; 501. Drive cam; 502. Discharge pipe; 503. Sliding rod; 504. Limiting plate; 505. Fixing plate; 506. Return spring; 507. Sealing plate. Detailed Implementation

[0031] While existing technical solutions can clean the concrete adhering to the inner wall of the mixing drum and reduce manual labor, they have low mixing efficiency, cannot fully mix the concrete, and cannot control the mixing ratio of water-reducing agent and concrete raw materials, resulting in low work efficiency.

[0032] like Figures 1-10 As shown, the present invention provides a technical solution: a concrete mixing device for roadbed maintenance, comprising a shell 1, a preparation cylinder 2 disposed inside the shell 1, an installation plate 4 fixedly connected inside the shell 1, a storage tank 7 detachably connected to the upper side inside the shell 1, a mixing mechanism 100 for mixing concrete disposed inside the preparation cylinder 2, a cleaning mechanism 200 for cleaning the inner wall of the preparation cylinder 2 disposed on the surface of the mixing mechanism 100, a feeding mechanism 500 for intermittently adding water-reducing agent disposed below the storage tank 7, a mixing mechanism 400 for mixing water-reducing agent and water disposed below the feeding mechanism 500, and a liquid delivery mechanism 300 for adding the mixture disposed below the mixing mechanism 400.

[0033] like Figure 1 and Figure 2As shown, the stirring mechanism 100 includes a connecting frame 101, a right bevel gear 102, and a rotating sleeve 106. The stirring mechanism 100 controls the cleaning mechanism 200 to clean the inner wall of the preparation cylinder 2 through the rotating sleeve 106. The stirring mechanism 100 controls the infusion mechanism 300 to intermittently add the mixed liquid through the right bevel gear 102. The infusion mechanism 300 includes a piston cylinder 301, a movable plate 306, and a drive plate 308. The infusion mechanism 300 controls the mixing mechanism 400 to mix and stir the water and water-reducing agent through the drive plate 308.

[0034] like Figure 3 As shown, a first motor 5 is fixedly mounted on the lower end face of the mounting plate 4. An upper bevel gear 103 is fixedly connected to the output end of the first motor 5. The upper bevel gear 103 is rotatably connected to the upper side of the connecting frame 101. A lower bevel gear 105 is rotatably connected to the lower side of the connecting frame 101. A right bevel gear 102 is rotatably connected to the right side of the connecting frame 101. The upper side of the right bevel gear 102 meshes with the lower side of the upper bevel gear 103, and the lower side of the right bevel gear 102 meshes with the upper side of the lower bevel gear 105. The connecting frame 101 is fixedly connected to the inside of the housing 1.

[0035] like Figure 4 As shown, a rotating shaft 104 is fixedly connected to the middle of the upper bevel gear 103, a rotating sleeve 106 is fixedly connected to the lower end face of the lower bevel gear 105, the rotating shaft 104 is rotatably connected to the inside of the rotating sleeve 106, a connecting ring 107 is fixedly connected to the surface of the rotating sleeve 106, a plurality of connecting shafts 108 are fixedly connected to the lower end face of the connecting ring 107, an outer stirring plate 109 is rotatably connected to the surface of the connecting shaft 108, and an inner stirring plate 110 is fixedly connected to the surface of the rotating shaft 104.

[0036] like Figure 5 and Figure 6 As shown, the cleaning mechanism 200 includes a rotating ring 201. A planetary gear 202 is fixedly connected to the upper side of the preparation cylinder 2. The rotating ring 201 is fixedly connected to the surface of the rotating sleeve 106. Several transmission shafts 203 are rotatably connected to the lower end face of the rotating ring 201. A scraper 205 is fixedly connected to the surface of the transmission shaft 203. The outer end of the scraper 205 slides on the inner wall of the preparation cylinder 2, and the inner side of the scraper 205 slides on the outer side of the outer stirring plate 109. A transmission gear 204 is fixedly connected to the upper side of the surface of the transmission shaft 203. The transmission gear 204 meshes with the planetary gear 202.

[0037] like Figure 7As shown, piston cylinder 301 is detachably connected to the inside of housing 1. Piston rod 305 is slidably connected inside piston cylinder 301. The outer side of piston rod 305 is fixedly connected to one end of movable plate 306. The other end of movable plate 306 is fixedly connected to drive plate 308. Drive plate 308 is slidably connected to the right side inside 1. One end of driven shaft 304 is fixedly connected to the right end face of right bevel gear 102. Rotary disk 303 is fixedly connected to the other end of driven shaft 304.

[0038] like Figure 8 As shown, a drive shaft 307 is fixedly connected to the surface of the rotating disk 303. The drive shaft 307 is slidably connected to the inside of the movable plate 306. The input end of the piston cylinder 301 is fixedly connected to the liquid inlet pipe 302. The surface of the preparation cylinder 2 is provided with a liquid inlet 3. The output end of the piston cylinder 301 is connected to the liquid inlet 3 through a hose.

[0039] like Figure 9 As shown, the mixing mechanism 400 includes a mixing cylinder 401. Several limiting rings 402 are rotatably connected inside the mixing cylinder 401. Stirring blades 403 are fixedly connected inside the limiting rings 402. A bearing plate 405 is fixedly connected to the upper side of the drive plate 308. A lead screw 404 is fixedly connected to the upper side of the bearing plate 405. The lead screw 404 is threaded to the middle of the stirring blades 403. The lower end of the mixing cylinder 401 is connected to the liquid inlet pipe 302. The mixing cylinder 401 is connected to an external water source through a water pipe.

[0040] like Figure 10 As shown, the feeding mechanism 500 includes a drive cam 501 on the sealing plate 507. A second motor 6 is fixedly installed on the upper side of the inside of the housing 1. The output end of the second motor 6 is fixedly connected to the rear end face of the drive cam 501. The lower end of the storage box 7 is fixedly connected to the feeding pipe 502. The lower end of the feeding pipe 502 is connected to the mixing cylinder 401. An opening is fixedly opened on the left side of the surface of the feeding pipe 502. The sealing plate 507 is slidably connected to the inside of the opening.

[0041] like Figure 10 As shown, a sliding rod 503 is fixedly connected to the left end face of the sealing plate 507. The left side of the surface of the sliding rod 503 is slidably connected to the right side of the surface of the drive cam 501. A limiting plate 504 is fixedly connected to the upper inner end face of the housing 1. The limiting plate 504 is slidably connected to the surface of the sliding rod 503. A fixing plate 505 is fixedly connected to the right side of the limiting plate 504 to the surface of the sliding rod 503. The upper end of the fixing plate 505 is slidably connected to the upper inner end face of the housing 1. A return spring 506 is sleeved on the surface of the sliding rod 503. The left end of the return spring 506 is fixedly connected to the right end of the limiting plate 504, and the right end of the return spring 506 is fixedly connected to the left end of the fixing plate 505.

[0042] Working principle: After installing this mixing device, add concrete raw materials into the preparation cylinder 2, turn on the control switch, and the output end of the first motor 5 drives the upper bevel gear 103 fixedly connected to it to rotate. The upper bevel gear 103 drives the right bevel gear 102 meshing with it to rotate. The right bevel gear 102 drives the lower bevel gear 105 meshing with it to rotate, thereby realizing the coaxial and opposite rotation of the upper bevel gear 103 and the lower bevel gear 105. The upper bevel gear 103 drives the rotating shaft 104 fixedly connected to it to rotate. The rotating shaft 104 drives the inner mixing plate 110 fixedly connected to it to rotate. The lower bevel gear 105 drives the rotating sleeve 106 fixedly connected to it to rotate in the opposite direction. The rotating sleeve 106 drives the connecting ring 107 fixedly connected to it to rotate in the opposite direction. The connecting ring 107 drives the connecting shaft 108 fixedly connected to it to rotate in the opposite direction. The connecting shaft 108 drives the outer mixing plate 109 rotatably connected to it to rotate in the opposite direction, thereby realizing the rotation of the rotating shaft 104 and the outer mixing plate 109 in different directions, further improving the mixing effect of concrete.

[0043] The rotating sleeve 106 drives the rotating ring 201 fixedly connected to it to rotate. The rotating ring 201 drives the transmission shaft 203 rotatably connected to it to rotate. The transmission shaft 203 drives the transmission gear 204 and scraper 205 fixedly connected to it to rotate. The transmission gear 204 rotates around the center of the rotating sleeve 106 along with the transmission shaft 203 and meshes with the planetary gear 202 to drive the transmission gear 204 to drive the scraper 205 to rotate around the center of the transmission shaft 203. While the scraper 205 rotates, it cleans the concrete adhering to the inner wall of the preparation cylinder 2 and the surface of the outer mixing plate 109.

[0044] The right bevel gear 102 drives the driven shaft 304, which is fixedly connected to it, to rotate. The driven shaft 304 drives the rotating disk 303, which is fixedly connected to it, to rotate. The rotating disk 303 drives the drive shaft 307, which is fixedly connected to it, to rotate. The drive shaft 307 drives the movable plate 306, which is slidably connected to it, to reciprocate back and forth. The movable plate 306 drives the piston rod 305, which is fixedly connected to it, and the drive plate 308 to reciprocate back and forth. While the piston rod 305 is reciprocating back and forth, it controls the piston cylinder 301 to perform piston spraying, so that the piston cylinder 301 inputs the mixture into the preparation cylinder 2 through the inlet 3, thereby realizing the intermittent addition of the mixture required for concrete preparation.

[0045] The drive plate 308 drives the bearing plate 405 fixedly connected to it to reciprocate back and forth. The bearing plate 405 drives the lead screw 404 fixedly connected to it to reciprocate back and forth. Under the limitation of the limiting ring 402 by the mixing cylinder 401, the lead screw 404 reciprocates back and forth while driving the stirring blade 403 threadedly connected to it to reciprocate. While the stirring blade 403 reciprocates, it mixes and stirs the water and water-reducing agent in the mixing cylinder 401.

[0046] The output of the second motor 6 drives the drive cam 501, which is fixedly connected to it, to rotate. The sliding rod 503 reciprocates left and right under the cooperation of the return spring 506 and the drive cam 501. The sliding rod 503 drives the sealing plate 507, which is fixedly connected to it, to reciprocate left and right. The water-reducing agent in the storage tank 7 is intermittently fed into the mixing cylinder 401 through the feeding pipe 502 under the cooperation of the sealing plate 507, which reciprocates left and right, to further improve the mixing effect of water and water-reducing agent.

[0047] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the scope and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A concrete mixing device for roadbed maintenance, comprising a housing (1), characterized in that: The housing (1) is equipped with a preparation cylinder (2) inside, and an installation plate (4) is fixedly connected inside the housing (1). A storage tank (7) is detachably connected to the upper side of the inside of the housing (1). A mixing mechanism (100) for mixing concrete is provided inside the preparation cylinder (2). A cleaning mechanism (200) for cleaning the inner wall of the preparation cylinder (2) is provided on the surface of the mixing mechanism (100). A feeding mechanism (500) for intermittently adding water-reducing agent is provided on the lower side of the storage tank (7). A mixing mechanism (400) for mixing water-reducing agent and water is provided on the lower side of the feeding mechanism (500). The lower side of the preparation cylinder (2) is provided with an infusion mechanism (300) for adding a mixture of water-reducing agent and water; the stirring mechanism (100) includes a connecting frame (101), a right bevel gear (102) and a rotating sleeve (106). The stirring mechanism (100) controls the cleaning mechanism (200) to clean the inner wall of the preparation cylinder (2) through the rotating sleeve (106); the stirring mechanism (100) controls the infusion mechanism (300) to intermittently add a mixture of water-reducing agent and water through the right bevel gear (102). The infusion mechanism (300) includes a piston cylinder (301), a movable plate (306) and a drive plate (308). The infusion mechanism (300) controls the infusion mechanism (301) to intermittently add a mixture of water-reducing agent and water through the drive plate (306). 8) The mixing mechanism (400) is controlled to mix and stir the water and water-reducing agent; a first motor (5) is fixedly installed on the lower end face of the mounting plate (4), and an upper bevel gear (103) is fixedly connected to the output end of the first motor (5). The upper bevel gear (103) is rotatably connected to the upper side of the connecting frame (101), and a lower bevel gear (105) is rotatably connected to the lower side of the connecting frame (101). The right bevel gear (102) is rotatably connected to the right side of the connecting frame (101). The upper side of the right bevel gear (102) meshes with the lower side of the upper bevel gear (103), and the lower side of the right bevel gear (102) meshes with the upper side of the lower bevel gear (105). The connecting frame (101) is fixedly connected to the inside of the housing (1); the middle part of the upper bevel gear (103) is fixedly connected to the rotating shaft (104), the rotating sleeve (106) is fixedly connected to the lower end face of the lower bevel gear (105), the rotating shaft (104) is rotatably connected to the inside of the rotating sleeve (106), the surface of the rotating sleeve (106) is fixedly connected to the connecting ring (107), the lower end face of the connecting ring (107) is fixedly connected to several connecting shafts (108), the surface of the connecting shaft (108) is rotatably connected to the outer stirring plate (109), and the surface of the rotating shaft (104) is fixedly connected to the inner stirring plate (110).The cleaning mechanism (200) includes a rotating ring (201). A gear ring (202) is fixedly connected to the upper inner side of the preparation cylinder (2). The rotating ring (201) is fixedly connected to the surface of the rotating sleeve (106). A plurality of drive shafts (203) are rotatably connected to the lower end face of the rotating ring (201). A scraper (205) is fixedly connected to the surface of the drive shaft (203). The outer end of the scraper (205) slides against the inner wall of the preparation cylinder (2), and the inner side of the scraper (205) slides against the outer side of the outer stirring plate (109). The drive shaft (202) is fixedly connected to the upper inner side of the preparation cylinder (2). 3) A transmission gear (204) is fixedly connected to the upper surface of the surface, and the transmission gear (204) meshes with the gear ring (202); the piston cylinder (301) is detachably connected to the inside of the housing (1), and a piston rod (305) is slidably connected inside the piston cylinder (301). The outer side of the piston rod (305) is fixedly connected to one end of the movable plate (306), and the other end of the movable plate (306) is fixedly connected to the drive plate (308). The drive plate (308) is slidably connected to the right side of the inside of the housing (1), and the right bevel gear (102) The right end face of the piston cylinder (301) is fixedly connected to one end of the driven shaft (304), and the other end of the driven shaft (304) is fixedly connected to a rotating disk (303); the surface of the rotating disk (303) is eccentrically fixedly connected to a drive shaft (307), the drive shaft (307) is slidably connected to the inside of the movable plate (306), the input end of the piston cylinder (301) is fixedly connected to a liquid inlet pipe (302), the surface of the preparation cylinder (2) is provided with a liquid inlet (3), and the output end of the piston cylinder (301) is connected to the liquid inlet (3) through a hose; the mixing mechanism (400) The system includes a mixing cylinder (401), with several limiting rings (402) rotatably connected inside the mixing cylinder (401). A stirring blade (403) is fixedly connected inside the limiting rings (402). A support plate (405) is fixedly connected to the upper side of the drive plate (308). A lead screw (404) is fixedly connected to the upper side of the support plate (405), and the lead screw (404) is threaded to the middle of the stirring blade (403). The lower end of the mixing cylinder (401) is connected to the liquid inlet pipe (302), and the mixing cylinder (401) is connected to an external water source via a water pipe.

2. The concrete mixing device for roadbed maintenance according to claim 1, characterized in that: The feeding mechanism (500) includes a drive cam (501) and a sealing plate (507). A second motor (6) is fixedly installed on the upper side of the interior of the housing (1). The output end of the second motor (6) is fixedly connected to the rear end face of the drive cam (501). The lower end of the storage box (7) is fixedly connected to a feeding pipe (502). The lower end of the feeding pipe (502) is connected to the mixing cylinder (401). An opening is fixedly opened on the left side of the surface of the feeding pipe (502). The sealing plate (507) is fixedly connected to the storage box (7). 7) Sliding connection inside the opening; a sliding rod (503) is fixedly connected to the left end face of the sealing plate (507), and the left side of the surface of the sliding rod (503) is slidably connected to the right side of the surface of the drive cam (501). A limiting plate (504) is fixedly connected to the upper inner surface of the housing (1), and the limiting plate (504) is slidably connected to the surface of the sliding rod (503). A fixing plate (505) is fixedly connected to the right side of the limiting plate (504) on the right side surface of the sliding rod (503).

3. The concrete mixing device for roadbed maintenance according to claim 2, characterized in that: The upper end of the fixed plate (505) is slidably connected to the inner upper surface of the housing (1). The surface of the sliding rod (503) is fitted with a reset spring (506). The left end of the reset spring (506) is fixedly connected to the right end of the limiting plate (504), and the right end of the reset spring (506) is fixedly connected to the left end of the fixed plate (505).

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