Precoated sand mixer driven by hydraulic motor

Abstract

The utility model discloses a precoated sand mixer driven by a hydraulic motor, which belongs to the technical field of precoated sand production and comprises a hydraulic station, two groups of hydraulic pipelines are mounted above the rear end of the left side of the hydraulic station, and a hydraulic cylinder connecting pipe is mounted at the bottom of the rear end of the left side of the hydraulic station. A first hydraulic motor is inserted into the bottom of the hydraulic pipeline at the upper end, a fixing support is installed at the bottom of the first hydraulic motor, a sand mixing cylinder is arranged at the bottom of the fixing support, and supporting columns are fixedly connected to the four corners of the bottom of the sand mixing cylinder. The two groups of stirring impellers are adopted to perform forward and reverse rotation stirring, so that ingredients can be uniformly stirred at a higher speed, starting and stopping at any time are facilitated, and the problems of slow starting, incapability of sudden stop and power waste caused by inertia of a gear set in a speed reducer and self weight of a grinding wheel in the conventional speed reducer adopting manner are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coated sand production, in particular to a coated sand mixer driven by a hydraulic motor. Background Art

[0002] At present, the "sand mixers" widely used on the market are all driven by motors to drive reducers, but the weight of the motor is too large. Most of them use a lower motor to add and subtract the whole machine to drive the mixing wheel. In addition, in order to better mix the ingredients, most of the existing products use mixing blades with a grinding wheel. This is mainly because although the motor can adjust the speed to a certain extent, due to insufficient torque, it needs to be started by a reducer. The adjustable speed range during the entire mixing cycle is not large. Due to these two reasons, the electric efficiency of the motor cannot be improved, and more power output is used to start the mixing impeller, resulting in energy efficiency cannot be improved. Therefore, it is necessary to provide a new hydraulic motor driven coated sand mixer to solve the above technical problems. Utility Model Content

[0003] Therefore, the purpose of the utility model is to provide a hydraulic motor driven coated sand mixer, which can solve the problem of low energy efficiency of existing sand mixers due to the bulky motor. In order to solve the above technical problems, the utility model provides a hydraulic motor driven coated sand mixer, which adopts the following technical solutions: a hydraulic motor driven coated sand mixer, comprising:

[0004] A hydraulic station, wherein two groups of hydraulic pipelines are installed above the left rear end of the hydraulic station, a hydraulic cylinder connecting pipe is installed at the bottom of the left rear end of the hydraulic station, a first hydraulic motor is inserted at the bottom of the upper hydraulic pipeline, a fixed bracket is installed at the bottom of the first hydraulic motor, a sand mixing cylinder is arranged at the bottom of the fixed bracket, and support columns are fixedly connected to the four corners of the bottom of the sand mixing cylinder;

[0005] A discharge trough, a discharge trough is installed at the bottom of the rear end of the sand mixing cylinder, a discharging mechanism is arranged at the bottom of the rear end of the sand mixing cylinder, and the bottom of the hydraulic cylinder connecting pipe is inserted on the discharging mechanism, and the discharging mechanism is located behind the discharge trough, the power output end of the first hydraulic motor is fixedly connected to the first connecting shaft, and the first connecting shaft is sleeved on the fixed bracket, a first stirring impeller is arranged at the bottom of the first connecting shaft, a bottom hydraulic motor fixing mechanism is installed in the middle of the bottom of the sand mixing cylinder, the bottom of the hydraulic pipeline at the lower end is inserted on the bottom hydraulic motor fixing mechanism, a second connecting shaft is inserted in the middle of the upper surface of the bottom hydraulic motor fixing mechanism, and the second connecting shaft passes through the sand mixing cylinder, and a second stirring impeller is fixedly connected to the top of the second connecting shaft, and the second stirring impeller is located below the first stirring impeller.

[0006] By adopting the above technical solution and providing a hydraulic station, it is convenient to increase the power of the first hydraulic motor, the bottom hydraulic motor fixing mechanism and the discharging mechanism. By providing the bottom hydraulic motor fixing mechanism and the first hydraulic motor, it is convenient to drive the two sets of stirring impellers to perform forward and reverse stirring, and the ingredients can be stirred evenly at a faster speed. By providing the discharging mechanism, it is convenient to control the discharging of the material inside the sand mixing drum.

[0007] Optionally, the fixed bracket includes a first concentric circle installed at the bottom of the first hydraulic motor, a plurality of groups of hanging rods are fixedly connected to the outer surface of the first concentric circle, and the bottoms of the plurality of groups of hanging rods are installed on the upper surface of the sand mixing cylinder, a connecting rod is fixedly connected to the middle of the inner side of the plurality of groups of hanging rods, and a second concentric circle is fixedly connected to the bottom of the plurality of groups of connecting rods.

[0008] By adopting the above technical solution, by providing the first concentric circle, it is convenient to fix the first hydraulic motor; by providing the hanging rod, it is convenient to fix the first hydraulic motor on the sand mixing drum for use during use; by providing the connecting rod and the second concentric circle, it is convenient to improve the load-bearing capacity of the device and the load-bearing strength of the hanging rod.

[0009] Optionally, the first concentric circle and the second concentric circle are parallel to each other in the upper and lower parts, and a movable groove adapted to the first connecting axis is provided between the first concentric circle and the second concentric circle.

[0010] By adopting the above technical solution, the first concentric circle and the second concentric circle are parallel to each other in the upper and lower parts, which is convenient for preventing the sand mixer from being eccentric during use. A movable groove compatible with the first connecting shaft is opened between the first concentric circle and the second concentric circle, which is convenient for the installation and use of the first connecting shaft.

[0011] Optionally, the inner wall of the discharge trough is arranged as an inclined surface, and the sand mixing cylinder is provided with a discharge port adapted to the position of the discharge trough.

[0012] By adopting the above technical solution, the inner wall of the discharge trough is set as an inclined surface, so that the mixed ingredients can slide down and be collected through the slope, which improves the convenience of discharge collection. The sand mixing barrel is provided with a discharge port that is compatible with the position of the discharge trough, which facilitates discharge.

[0013] Optionally, the discharging mechanism includes a hydraulic cylinder installed on the sand mixing drum, a discharging wrench is hinged at the bottom of the hydraulic cylinder, the upper end of the discharging wrench is rotatably connected to a rotating shaft, and the bottom of the rotating shaft is fixedly connected to the sand mixing drum, a fixing column is inserted at the bottom of the discharging wrench, fixing rings are inserted on the left and right sides of the fixing column, and a discharging cover plate is fixedly connected to the bottom of the fixing ring.

[0014] By adopting the above technical scheme, by providing a hydraulic cylinder, it is convenient to push the discharge wrench to adjust the angle. By providing the discharge wrench, it is convenient to drive the discharge cover plate on the fixed column to close the discharge port of the sand mixing drum, thereby controlling the sand mixing drum to discharge. By providing a rotating shaft, it is convenient to fix the discharge wrench without affecting the use of the discharge wrench.

[0015] Optionally, the discharge wrench is configured to be Z-shaped, and the size of the discharge cover plate is adapted to the discharge port provided on the sand mixing cylinder.

[0016] By adopting the above technical solution, the discharge wrench is set in a Z shape, so that the discharge cover plate can be effectively pushed to close the discharge port. By matching the size of the discharge cover plate with the opened discharge port, the phenomenon of material accumulation on the pit surface can be avoided.

[0017] Optionally, the bottom hydraulic motor fixing mechanism includes a second hydraulic motor, and the power output end of the second hydraulic motor is connected to a second connecting shaft, a circular fixing plate is installed on the upper surface of the second hydraulic motor, a plurality of groups of fixing rods are fixedly connected to the outer surface of the circular fixing plate, and the plurality of groups of fixing rods are installed on the sand mixing barrel, and a sealing ring is sleeved in the middle of the upper surface of the circular fixing plate.

[0018] By adopting the above technical solution, by providing a circular fixing plate and a fixing rod, it is convenient to fix the second hydraulic motor on the sand mixing drum for use. By providing the second hydraulic motor, it is convenient to drive the second stirring impeller on the second connecting shaft to rotate, thereby stirring the ingredients inside the sand mixing drum. By providing a sealing ring, it is convenient to seal the bottom connection of the sand mixing drum to avoid leakage of ingredients during use.

[0019] In summary, the present invention has at least one of the following beneficial effects:

[0020] 1. After the hydraulic motor is provided, the sand mixer can abandon the bulky grinding wheel. By adopting two sets of stirring impellers for forward and reverse stirring, the ingredients can be stirred evenly at a faster speed, and it is convenient to start and stop at any time, which solves the problem of slow start, inability to stop suddenly, and waste of power caused by the inertia of the gear set in the reducer and the dead weight of the grinding wheel in the existing method of using a reducer;

[0021] 2. By using a hydraulic station for hydraulic oil supply, the energy efficiency is higher than that of the existing motor type. Although the hydraulic station also requires an electric motor, it is more energy-saving than the motor type because the power output is more stable during the hydraulic charging process and the starting power loss is smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic diagram of the use status of the utility model Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the use status of the utility model Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the structure of the hydraulic motor fixing mechanism of the utility model;

[0026] Figure 4 It is a schematic diagram of the structure of the discharging mechanism of the utility model.

[0027] Explanation of the reference numerals in the accompanying drawings: 1. hydraulic station; 2. hydraulic pipeline; 3. hydraulic cylinder connecting pipe; 4. first hydraulic motor; 5. fixed bracket; 501. first concentric circle; 502. hanging rod; 503. connecting rod; 504. second concentric circle; 6. sand mixing drum; 7. supporting column; 8. discharge chute; 9. discharge mechanism; 901. hydraulic cylinder; 902. discharge wrench; 903. rotating shaft; 904. fixing column; 905. fixing ring; 906. discharge cover plate; 10. first connecting shaft; 11. first stirring impeller; 12. second stirring impeller; 13. second connecting shaft; 14. bottom hydraulic motor fixing mechanism; 1401. second hydraulic motor; 1402. circular fixing plate; 1403. fixing rod; 1404. sealing ring. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-4 The utility model is described in further detail.

[0029] Example 1, reference Figure 1 and Figure 2 The utility model discloses a coated sand mixer driven by a hydraulic motor, which can solve the problem of low energy efficiency of the existing sand mixer due to the bulky motor, and includes:

[0030] A hydraulic station 1, two groups of hydraulic pipelines 2 are installed above the left rear end of the hydraulic station 1, a hydraulic cylinder connecting pipe 3 is installed at the bottom of the left rear end of the hydraulic station 1, a first hydraulic motor 4 is inserted at the bottom of the upper hydraulic pipeline 2, a fixed bracket 5 is installed at the bottom of the first hydraulic motor 4, a sand mixing cylinder 6 is arranged at the bottom of the fixed bracket 5, and support columns 7 are fixedly connected to the four corners of the bottom of the sand mixing cylinder 6;

[0031] A discharge trough 8 is installed at the bottom of the rear end of the sand mixing cylinder 6, a discharge mechanism 9 is arranged at the bottom of the rear end of the sand mixing cylinder 6, and the bottom of the hydraulic cylinder connecting pipe 3 is inserted on the discharge mechanism 9, and the discharge mechanism 9 is located behind the discharge trough 8, the power output end of the first hydraulic motor 4 is fixedly connected to the first connecting shaft 10, and the first connecting shaft 10 is sleeved on the fixed bracket 5, and the first connecting shaft 10 is arranged at the bottom of the first connecting shaft 10. A bottom hydraulic motor fixing mechanism 14 is installed in the middle of the bottom of the sand mixing cylinder 6, and the bottom of the lower end hydraulic pipeline 2 is inserted on the bottom hydraulic motor fixing mechanism 14, and a second connecting shaft 13 is inserted in the middle of the upper surface of the bottom hydraulic motor fixing mechanism 14, and the second connecting shaft 13 passes through the sand mixing cylinder 6, and the top of the second connecting shaft 13 is fixedly connected with a second stirring impeller 12, and the second stirring impeller 12 is located below the first stirring impeller 11.

[0032] Working principle: The hydraulic station 1, the hydraulic pipeline 2 and the hydraulic cylinder connecting pipe 3 are convenient for providing kinetic energy to the first hydraulic motor 4, the second hydraulic motor 1401 and the hydraulic cylinder 901. The first hydraulic motor 4 is convenient for driving the first stirring impeller 11 to rotate. The fixing bracket 5 is convenient for installing the first hydraulic motor 4 on the upper end of the sand mixing cylinder 6 for use. The sand mixing cylinder 6 is convenient for collecting and stirring the ingredients. The support column 7 is convenient for providing height and load-bearing for the device. The discharge trough is convenient for discharging the ingredients inside the sand mixing cylinder 6. The first connecting shaft 10 is convenient for the first hydraulic The motor 4 is connected to the first stirring impeller 11. The first stirring impeller 11 and the second stirring impeller 12 are stirred in forward and reverse directions by using two sets of stirring impellers, so that the ingredients can be stirred evenly at a faster speed. The second connecting shaft 13 is convenient for connecting the second hydraulic motor 1401 and the second stirring impeller 12. The bottom hydraulic motor fixing mechanism 14 is convenient for installing and using the second hydraulic motor 1401. By replacing the electric motor with the hydraulic motor, the hydraulic motor has the characteristics of large torque, light weight and no noise. It can be used in the workshop to effectively reduce the noise in the workshop, reduce noise pollution, and improve production efficiency. One-third of the entire sand mixing time is the start and stop time. The start and stop time of the reducer are completely invalid times, but because it is an inevitable product of the combination of the motor and the reducer, it cannot be avoided. Among these two times, the start time is the time when the motor consumes the most energy, the energy consumption is large and the energy efficiency is not high. 30% to 60% of the normal motor operation is also required to slow down for discharging when mixing sand. Therefore, the energy consumption of this part of time accounts for about 40% of the entire sand mixing process. In actual use, we also found that the weight of motors with the same power, such as the same 30KW pure copper winding motor, is more than 200KG, and the total weight with the reducer exceeds 250KG. However, we use hydraulic motors, and a certain 30KW model weighs only 58KG, which is nearly 5 times the weight difference between the two. However, the torque of the 30KW hydraulic motor is 1069n / m, while the torque of some 30KW general motors is only 101n / m, which is nearly 10 times the weight difference. This saves startup time during use and solves the problem of low energy efficiency of existing sand mixers due to bulky motors.

[0033] Example 2, reference Figure 3 and Figure 4In this embodiment, the problem of low energy efficiency of the existing sand mixer caused by the bulky motor is solved. The coated sand mixer driven by a hydraulic motor also includes a fixed bracket 5 including a first concentric circle 501 installed at the bottom of the first hydraulic motor 4, the outer surface of the first concentric circle 501 is fixedly connected with multiple groups of hanging rods 502, and the bottoms of the multiple groups of hanging rods 502 are installed on the upper surface of the sand mixing cylinder 6, the inner middle of the multiple groups of hanging rods 502 are fixedly connected with connecting rods 503, and the bottoms of the multiple groups of connecting rods 503 are fixedly connected with second concentric circles 504, the first concentric circle 501 and the second concentric circle 504 are parallel to each other, and a movable groove adapted to the first connecting shaft 10 is opened between the first concentric circle 501 and the second concentric circle 504, the inner wall of the discharge trough 8 is set as an inclined surface, and the sand mixing cylinder 6 is provided with a discharge port adapted to the position of the discharge trough 8, and the discharge mechanism 9 includes a hydraulic cylinder 901 installed on the sand mixing cylinder 6, and the bottom of the hydraulic cylinder 901 The upper end of the discharging wrench 902 is hingedly connected with a rotating shaft 903, and the bottom of the rotating shaft 903 is fixedly connected to the sand mixing cylinder 6. A fixing column 904 is inserted at the bottom of the discharging wrench 902, and a fixing ring 905 is inserted at the left and right sides of the fixing column 904. The bottom of the fixing ring 905 is fixedly connected with a discharging cover plate 906. The discharging wrench 902 is set in a Z shape, and the size of the discharging cover plate 906 is the same as the discharge port opened on the sand mixing cylinder 6. The bottom hydraulic motor fixing mechanism 14 comprises a second hydraulic motor 1401, and the power output end of the second hydraulic motor 1401 is connected to the second connecting shaft 13, a circular fixing plate 1402 is installed on the upper surface of the second hydraulic motor 1401, a plurality of sets of fixing rods 1403 are fixedly connected to the outer surface of the circular fixing plate 1402, and the plurality of sets of fixing rods 1403 are installed on the sand mixing cylinder 6, and a sealing ring 1404 is sleeved in the middle of the upper surface of the circular fixing plate 1402.

[0034] Working principle: When in use, after placing the ingredients into the sand mixing barrel 6, the first hydraulic motor 4 and the second hydraulic motor 1401 are turned on, and the first hydraulic motor 4 and the second hydraulic motor 1401 drive the first stirring impeller 11 and the second stirring impeller 12 on the first connecting shaft 10 and the second connecting shaft 13 to rotate. By using two sets of stirring impellers for forward and reverse stirring, the ingredients can be stirred evenly at a faster speed, and it is convenient to start and stop at any time, which solves the problem of slow start, inability to stop suddenly, and waste of power caused by the inertia of the gear group in the reducer and the dead weight of the grinding wheel in the existing method of using a reducer. After stirring, the hydraulic cylinder 901 is retracted to move the discharge wrench 902 backward, so that the fixing ring 905 The discharge cover plate 906 is separated from the sand mixing cylinder 6, and the ingredients can be discharged and collected through the discharge trough 8. The first concentric circle 501 is provided to facilitate fixation with the first hydraulic motor 4. The hanging rod 502 is provided to facilitate fixation of the first hydraulic motor 4 on the sand mixing cylinder 6 for use during use. The connecting rod 503 and the second concentric circle 504 are provided to facilitate improvement of the load-bearing capacity of the device and improvement of the load-bearing strength of the hanging rod 502. The circular fixing plate 1402 and the fixing rod 1403 are provided to facilitate fixation of the second hydraulic motor 1401 on the sand mixing cylinder 6 for use. The sealing ring 1404 is provided to facilitate sealing of the bottom connection of the sand mixing cylinder 6 to avoid leakage of ingredients during use.

[0035] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A coated sand mixer driven by a hydraulic motor, characterized in that: include, A hydraulic station (1), wherein two groups of hydraulic pipelines (2) are installed above the left rear end of the hydraulic station (1), a hydraulic cylinder connecting pipe (3) is installed at the bottom of the left rear end of the hydraulic station (1), a first hydraulic motor (4) is inserted at the bottom of the upper hydraulic pipeline (2), a fixed bracket (5) is installed at the bottom of the first hydraulic motor (4), a sand mixing cylinder (6) is arranged at the bottom of the fixed bracket (5), and support columns (7) are fixedly connected to the four corners of the bottom of the sand mixing cylinder (6); A discharge trough (8), a discharge trough (8) is installed at the bottom of the rear end of the sand mixing cylinder (6), a discharge mechanism (9) is arranged at the bottom of the rear end of the sand mixing cylinder (6), and the bottom of the hydraulic cylinder connecting pipe (3) is inserted into the discharge mechanism (9), and the discharge mechanism (9) is located behind the discharge trough (8), the power output end of the first hydraulic motor (4) is fixedly connected to the first connecting shaft (10), and the first connecting shaft (10) is sleeved on the fixed bracket (5), and the bottom of the first connecting shaft (10) is arranged with a first stirring impeller ( 11), a bottom hydraulic motor fixing mechanism (14) is installed in the middle of the bottom of the sand mixing cylinder (6), the bottom of the lower end of the hydraulic pipeline (2) is inserted on the bottom hydraulic motor fixing mechanism (14), a second connecting shaft (13) is inserted in the middle of the upper surface of the bottom hydraulic motor fixing mechanism (14), and the second connecting shaft (13) passes through the sand mixing cylinder (6), and the top of the second connecting shaft (13) is fixedly connected with a second stirring impeller (12), and the second stirring impeller (12) is located below the first stirring impeller (11).

2. The coated sand mixer driven by a hydraulic motor according to claim 1, characterized in that: The fixed bracket (5) comprises a first concentric circle (501) mounted on the bottom of the first hydraulic motor (4); a plurality of groups of hanging rods (502) are fixedly connected to the outer surface of the first concentric circle (501); the bottoms of the plurality of groups of hanging rods (502) are mounted on the upper surface of the sand mixing cylinder (6); a connecting rod (503) is fixedly connected to the middle of the inner side of the plurality of groups of hanging rods (502); and a second concentric circle (504) is fixedly connected to the bottom of the plurality of groups of connecting rods (503).

3. The hydraulic motor driven coated sand mixer according to claim 2, characterized in that: The first concentric circle (501) and the second concentric circle (504) are parallel to each other in the vertical direction, and a movable groove adapted to the first connecting shaft (10) is provided between the first concentric circle (501) and the second concentric circle (504).

4. The coated sand mixer driven by a hydraulic motor according to claim 1, characterized in that: The inner wall of the discharge trough (8) is arranged as an inclined surface, and the sand mixing cylinder (6) is provided with a discharge port which is matched with the position of the discharge trough (8).

5. The hydraulic motor driven coated sand mixer according to claim 1, characterized in that: The discharging mechanism (9) comprises a hydraulic cylinder (901) mounted on the sand mixing cylinder (6); a discharging wrench (902) is hingedly connected to the bottom of the hydraulic cylinder (901); the upper end of the discharging wrench (902) is rotatably connected to a rotating shaft (903); and the bottom of the rotating shaft (903) is fixedly connected to the sand mixing cylinder (6); a fixing column (904) is inserted at the bottom of the discharging wrench (902); fixing rings (905) are inserted at the left and right sides of the fixing column (904); and a discharging cover plate (906) is fixedly connected to the bottom of the fixing ring (905).

6. The coated sand mixer driven by a hydraulic motor according to claim 5, characterized in that: The discharge wrench (902) is arranged in a Z shape, and the size of the discharge cover plate (906) is adapted to the discharge port provided on the sand mixing cylinder (6).

7. The coated sand mixer driven by a hydraulic motor according to claim 1, characterized in that: The bottom hydraulic motor fixing mechanism (14) comprises a second hydraulic motor (1401), and the power output end of the second hydraulic motor (1401) is connected to a second connecting shaft (13), a circular fixing plate (1402) is installed on the upper surface of the second hydraulic motor (1401), a plurality of groups of fixing rods (1403) are fixedly connected to the outer surface of the circular fixing plate (1402), and the plurality of groups of fixing rods (1403) are installed on the sand mixing cylinder (6), and a sealing ring (1404) is sleeved in the middle of the upper surface of the circular fixing plate (1402).

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