Fertilizer mixing device for compound fertilization

Abstract

The invention discloses a fertilizer mixing device for compound fertilization in the technical field of compound fertilizer production, and the fertilizer mixing device comprises a stirring barrel, the stirring barrel is transversely arranged, the stirring barrel is externally connected with a feeding and discharging device, the fertilizer mixing device further comprises a first driving mechanism, and the first driving mechanism is transversely arranged on the stirring barrel; the multiple stirring rods are arranged in the stirring barrel, the multiple stirring rods are arranged on the first driving mechanism in a staggered sliding mode in the axial direction of the first driving mechanism, and the first driving mechanism is used for driving the stirring rods to rotate around the axis of the stirring barrel; the feedback mechanism is arranged in the first driving mechanism, and the feedback mechanism can control the end part of the stirring rod to contract relative to the first driving mechanism after the stress of the stirring rod reaches a threshold value; the telescopic stirring rod is arranged, so that when the stirring rod bears too large force in the stirring process, the operation load of equipment can be reduced in a manner of contracting the stirring rod, the equipment is effectively prevented from being damaged, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of compound fertilizer production, in particular to a fertilizer mixing device for compound fertilization. Background Art

[0002] Compound fertilizer refers to chemical fertilizer containing two or more nutrients. Compound fertilizer has the advantages of high nutrient content, few by-components and good physical properties. It plays a very important role in balanced fertilization, improving fertilizer utilization and promoting high and stable yields of crops.

[0003] During the use of traditional mixing equipment, the composition and state of the mixing materials are uncertain, so the stress state of the mixing fan during operation is also uncertain. Furthermore, if the total amount of the mixing materials is too much and the state is too hard, resulting in excessive load on the mixing fan during operation, the traditional mixing equipment cannot adaptively handle this situation, which makes the mixing fan prone to reduced life or direct damage. Summary of the invention

[0004] The object of the present invention is to provide a fertilizer mixing device for compound fertilization, so as to solve the problem that the traditional stirring equipment proposed in the above background technology has uncertainty in the composition and state of the stirring raw materials during use, so the stress state of the stirring fan during operation is also uncertain. Furthermore, if the total amount of the stirring raw materials is too much and the state is too hard, resulting in excessive load on the stirring fan during operation, the traditional stirring equipment cannot adaptively handle this situation, which makes the stirring fan prone to reduced life or direct damage.

[0005] To achieve the above object, the present invention provides the following technical solution: a fertilizer mixing device for composite fertilization, comprising a mixing drum, the mixing drum is arranged horizontally, the mixing drum is externally connected to a loading and unloading device, and further comprising a first driving mechanism, the first driving mechanism is arranged horizontally on the mixing drum; A plurality of stirring rods, wherein the plurality of stirring rods are arranged in the stirring drum, and the plurality of stirring rods are arranged on the first driving mechanism in a staggered sliding manner along the axial direction of the first driving mechanism, and the first driving mechanism is used to drive the stirring rods to rotate around the axis of the stirring drum; A feedback mechanism is provided in the first driving mechanism, and the feedback mechanism can control the end of the stirring rod to retract relative to the first driving mechanism after the force applied to the stirring rod reaches a threshold value.

[0006] As a further solution of the present invention, the first driving mechanism includes a first mounting plate, a second mounting plate is arranged above the first mounting plate, a vertically arranged support rod is fixedly connected to the upper end of the second mounting plate, a third mounting plate is fixedly connected to the upper end of the support rod, a first rotating motor is fixedly connected to the upper end of the third mounting plate, an output shaft is transmission-connected to the left end of the first rotating motor, the output shaft extends to the left into the mixing drum, the feedback mechanism is arranged on the outer wall of the output shaft, and the stirring rod is arranged on the feedback mechanism.

[0007] As a further solution of the present invention, the feedback mechanism includes a first sleeve, which is sleeved on the side wall of the output shaft, and the right end of the first sleeve is fixedly connected to a first shell, which is rotatably connected to the output shaft, and a push rod is arranged in the first shell, and the push rod is fixedly connected to the output shaft, a first connecting block is fixedly connected to the inner wall of the first shell, and a second connecting block is slidably connected to the inner wall of the first shell, and an elastic telescopic rod is fixedly connected between the first connecting block and the second connecting block, and the side wall of the push rod can squeeze the second connecting block as the output shaft rotates, and the outer side walls of the first sleeve are respectively provided with a first control mechanism and a second control mechanism, and the stirring rod is arranged on the first control mechanism, and the first control mechanism is used to control the contraction of the stirring rod, and the elastic telescopic rod is externally connected to a displacement sensor, and the displacement sensor is used to control the first control mechanism according to the compression amount of the elastic telescopic rod; the second control mechanism is used to control the first driving mechanism and the feedback mechanism to move downward relative to the stirring drum as a whole.

[0008] As a further scheme of the present invention, the first control mechanism includes a second sleeve, the second sleeve is sleeved on the first sleeve, a second driving mechanism is arranged at the right end of the second sleeve, the stirring rod is slidably connected to the outer wall of the second sleeve along the radial vertical direction of the second sleeve, the stirring rod is provided with teeth on the side close to the second sleeve, annular avoidance grooves are provided on the inner wall of the second sleeve corresponding to the lateral position of the stirring rod, first gears are arranged in the avoidance grooves, the first gears are respectively meshed with the corresponding side walls of the stirring rods, the first gears are fixedly connected to the first sleeve, and the second driving mechanism is used to control the relative rotation between the first sleeve and the second sleeve.

[0009] As a further solution of the present invention, the second driving mechanism includes a second shell, the second shell is fixedly connected to the right end of the second sleeve, the inner wall of the second shell is fixedly connected to a second rotating motor, and the output shaft of the second rotating motor is fixedly connected to a second gear; the second rotating motor has a self-locking function, and when the second rotating motor is on standby, the output shaft of the second rotating motor is locked; the displacement sensor is used to control the operation of the second rotating motor, a third gear is arranged in the second shell, the third gear is fixedly connected to the outer wall of the second sleeve, and the second gear is meshed with the third gear.

[0010] As a further solution of the present invention, the second control mechanism includes a telescopic motor, which is fixedly connected to the upper end of the first mounting plate, the first sleeve is rotatably connected to a bearing, the lower end of the bearing is fixedly connected to a connecting rod, the connecting rod is fixedly connected to the upper end of the second mounting plate, the lower end of the second mounting plate is fixedly connected to the output shaft of the telescopic motor, a notch is horizontally penetrated through the right end of the mixing drum, the second shell is vertically slidably connected to the right end of the mixing drum, the upper and lower ends of the second shell are fixedly connected to a U-shaped plate, and the U-shaped plate is used to seal the notch; the second rotating motor is externally connected to a controller, and the controller can control the operation of the telescopic motor at the second rotating motor.

[0011] Compared with the prior art, the present invention has the following beneficial effects: The present invention is provided with a retractable stirring rod, so that when the stirring rod is subjected to excessive force during the stirring process, the equipment operation load can be reduced by retracting the stirring rod, thereby effectively avoiding equipment damage and increasing the service life of the equipment.

[0012] The present invention uses the elastic telescopic rod as a transmission member for driving the stirring rod to rotate, so that the device can sensitively respond to the force condition of the stirring rod and provide rapid feedback, thereby effectively improving the stability of the device.

[0013] When the stirring rod contracts, the corresponding controller controls the telescopic motor to work, so that the telescopic motor drives the first driving mechanism and the feedback mechanism to move downward as a whole, so that the end of the stirring rod during the rotation process can be close to the lower end of the inner wall of the stirring drum, thereby avoiding the material being stuck at the lower end of the stirring drum during the stirring process, resulting in some raw materials in the stirring drum cannot be fully stirred, and further improving the stirring uniformity of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the front cross-section structure of the present invention; Figure 3 It is a schematic diagram of the side section structure of the first shell of the present invention; Figure 4 It is a schematic diagram of the side section structure of the second shell of the present invention; Figure 5 It is a schematic diagram of the side cross-section structure of the mixing drum of the present invention; Figure 6 for Figure 5 Schematic diagram of the structure after removing the mixing drum; Figure 7 for Figure 6 Schematic diagram of the side section structure at the first gear.

[0015] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 11 a mixing drum, 12 a mixing rod, 21 a first mounting plate, 22 a second mounting plate, 23 a supporting rod, 24 a third mounting plate, 25 a first rotating motor, 26 an output shaft, 31 a first sleeve, 32 a first housing, 33 a push rod, 34 a first connecting block, 35 a second connecting block, 36 an elastic telescopic rod, 41 a second sleeve, 42 a first gear, 51 a second housing, 52 a second rotating motor, 53 a second gear, 54 a third gear, 61 a telescopic motor, 62 a bearing, 63 a connecting rod, 64 a notch, and 65 a U-shaped plate. DETAILED DESCRIPTION

[0016] See also Figure 1-7 The present invention provides a technical solution: a fertilizer mixing device for composite fertilization, comprising a mixing drum 11, the mixing drum 11 is arranged horizontally, the mixing drum 11 is externally connected to a loading and unloading device, and further comprising a first driving mechanism, the first driving mechanism is arranged horizontally on the mixing drum 11; A plurality of stirring rods 12, wherein the plurality of stirring rods 12 are arranged in the stirring drum 11, and the plurality of stirring rods 12 are arranged on the first driving mechanism in a staggered sliding manner along the axial direction of the first driving mechanism, and the first driving mechanism is used to drive the stirring rods 12 to rotate around the axis of the stirring drum 11; A feedback mechanism is provided in the first driving mechanism, and the feedback mechanism can control the end of the stirring rod 12 to retract relative to the first driving mechanism after the force applied to the stirring rod 12 reaches a threshold value.

[0017] First, the various components of the compound fertilizer are put into the mixing drum 11 in proportion through the loading and unloading devices, and then the first driving mechanism is started to drive the stirring rods 12 to stir and mix the raw materials. During this process, if the force on the stirring rod 12 reaches a threshold, the feedback mechanism controls the end of the stirring rod 12 to shrink relative to the first driving mechanism, thereby reducing the force torque and force size of the stirring rod 12 during the stirring process; avoiding overload of the equipment due to factors such as hard raw materials or too much raw materials, thereby reducing the service life of the equipment.

[0018] The present invention is provided with a retractable stirring rod 12, so that when the stirring rod 12 is subjected to excessive force during stirring, the stirring rod 12 can be retracted to reduce the equipment operation load, thereby effectively avoiding equipment damage and increasing the service life of the equipment.

[0019] As a further solution of the present invention, the first driving mechanism includes a first mounting plate 21, a second mounting plate 22 is arranged above the first mounting plate 21, a vertically arranged support rod 23 is fixedly connected to the upper end of the second mounting plate 22, a third mounting plate 24 is fixedly connected to the upper end of the support rod 23, a first rotating motor 25 is fixedly connected to the upper end of the third mounting plate 24, the first rotating motor 25 is transmission-connected to an output shaft 26 at the left end, the output shaft 26 extends to the left into the mixing drum 11, the feedback mechanism is arranged on the outer side wall of the output shaft 26, and the mixing rod 12 is arranged on the feedback mechanism.

[0020] As a further solution of the present invention, the feedback mechanism includes a first sleeve 31, which is sleeved on the side wall of the output shaft 26. The right end of the first sleeve 31 is fixedly connected to a first shell 32, which is rotatably connected to the output shaft 26. A push rod 33 is arranged in the first shell 32, and the push rod 33 is fixedly connected to the output shaft 26. A first connecting block 34 is fixedly connected to the inner wall of the first shell 32, and a second connecting block 35 is slidably connected to the inner wall of the first shell 32. An elastic telescopic rod 36 is fixedly connected between the first connecting block 34 and the second connecting block 35. The side wall of the push rod 33 can squeeze the second connecting block 35 as the output shaft 26 rotates. The outer side walls of the first sleeve 31 are respectively provided with a first control mechanism and a second control mechanism. The stirring rod 12 is arranged on the first control mechanism, and the first control mechanism is used to control the contraction of the stirring rod 12. The elastic telescopic rod 36 is externally connected to a displacement sensor, and the displacement sensor is used to control the first control mechanism according to the compression amount of the elastic telescopic rod 36; the second control mechanism is used to control the first driving mechanism and the feedback mechanism to move downward relative to the stirring drum 11 as a whole.

[0021] The first rotating motor 25 drives the output shaft 26 to rotate, and the output shaft 26 further pushes the second connecting block 35 through the push rod 33, and the second connecting block 35 pushes the first connecting block 34 through the elastic telescopic rod 36, so that the first shell 32 rotates, and the first shell 32 drives the first sleeve 31. Further, the first sleeve 31 drives the first control mechanism and the stirring rod 12 on the first control mechanism to rotate. In this process, the reaction force generated by the stirring rod 12 stirring the raw material will act on the elastic telescopic rod 36, causing the elastic telescopic rod 36 to shrink. When the shrinkage of the elastic telescopic rod 36 reaches a threshold, the reaction force received by the corresponding stirring rod 12 reaches a threshold. At this time, the displacement sensor controls the first control mechanism to work, causing the stirring rod 12 to shrink.

[0022] The present invention uses the elastic telescopic rod 36 as a transmission member for driving the stirring rod 12 to rotate, so that the device can sensitively respond to the stress of the stirring rod 12 and provide rapid feedback, which can effectively improve the stability of the device.

[0023] As a further scheme of the present invention, the first control mechanism includes a second sleeve 41, which is sleeved on the first sleeve 31, and a second driving mechanism is arranged at the right end of the second sleeve 41. The stirring rod 12 is slidably connected to the outer wall of the second sleeve 41 along the radial vertical direction of the second sleeve 41, and teeth are arranged on the side of the stirring rod 12 close to the second sleeve 41. An annular avoidance groove is opened on the inner wall of the second sleeve 41 corresponding to the lateral position of the stirring rod 12, and a first gear 42 is arranged in the avoidance groove. The first gear 42 is respectively meshed with the corresponding side walls of the stirring rod 12, and the first gear 42 is fixedly connected to the first sleeve 31. The second driving mechanism is used to control the relative rotation between the first sleeve 31 and the second sleeve 41.

[0024] When the force on the stirring rod 12 reaches a threshold, the second driving mechanism controls the relative rotation between the first sleeve 31 and the second sleeve 41, causing the first gear 42 on the outer wall of the second sleeve 41 to rotate relative to the stirring rod 12, and then the first gear 42 drives the stirring rod 12 to slide relative to the second sleeve 41, thereby reducing the distance from the end of the stirring rod 12 to the second sleeve 41.

[0025] As a further solution of the present invention, the second driving mechanism includes a second shell 51, the second shell 51 is fixedly connected to the right end of the second sleeve 41, the inner wall of the second shell 51 is fixedly connected to the second rotating motor 52, and the output shaft of the second rotating motor 52 is fixedly connected to the second gear 53; the second rotating motor 52 has a self-locking function, and when the second rotating motor 52 is on standby, the output shaft of the second rotating motor 52 is locked; the displacement sensor is used to control the operation of the second rotating motor 52, and a third gear 54 is arranged in the second shell 51, and the third gear 54 is fixedly connected to the outer wall of the second sleeve 41, and the second gear 53 is meshed with the third gear 54.

[0026] When the force on the stirring rod 12 reaches a threshold, the displacement sensor controls the second rotating motor 52 to rotate, so that the second rotating motor 52 drives the first sleeve 31 to rotate relative to the second shell 51 through the second gear 53 and the third gear 54, and then the first sleeve 31 rotates relative to the second sleeve 41, so that the first gear 42 drives the stirring rod 12 to slide relative to the second sleeve 41, so that the distance from the end of the stirring rod 12 to the second sleeve 41 is reduced; correspondingly, when the force on the stirring rod 12 is reduced below the threshold, the displacement sensor controls the direction of the second rotating motor 52 to rotate, so that the distance from the end of the stirring rod 12 to the second sleeve 41 is increased again, thereby ensuring the working efficiency of the equipment under normal working conditions.

[0027] As a further solution of the present invention, the second control mechanism includes a telescopic motor 61, which is fixedly connected to the upper end of the first mounting plate 21, the first sleeve 31 is rotatably connected to a bearing 62, the lower end of the bearing 62 is fixedly connected to a connecting rod 63, the connecting rod 63 is fixedly connected to the upper end of the second mounting plate 22, the lower end of the second mounting plate 22 is fixedly connected to the output shaft of the telescopic motor 61, the right end of the mixing drum 11 is horizontally penetrated by a slot 64, the second shell 51 is vertically slidably connected to the right end of the mixing drum 11, the upper and lower ends of the second shell 51 are fixedly connected to a U-shaped plate 65, the U-shaped plate 65 is used to seal the slot 64; the second rotating motor 52 is externally connected to a controller, and the controller can control the telescopic motor 61 to work at the second rotating motor 52.

[0028] When the second rotating motor 52 controls the stirring rod 12 to retract, the corresponding controller controls the telescopic motor 61 to work, so that the telescopic motor 61 drives the first driving mechanism and the feedback mechanism to move downward as a whole, so that the end of the stirring rod 12 during the rotation process can be close to the lower end of the inner wall of the stirring drum 11, thereby avoiding the material being stuck at the lower end of the stirring drum 11 during the stirring process, resulting in some raw materials in the stirring drum 11 being unable to be fully stirred, thereby further improving the stirring uniformity of the equipment.

Claims

1. A fertilizer mixing device for composite fertilization, comprising a mixing drum (11), wherein the mixing drum (11) is arranged horizontally and is externally connected to a loading and unloading device, characterized in that: It also includes a first driving mechanism, which is arranged transversely on the mixing drum (11); a plurality of stirring rods (12), the plurality of stirring rods (12) being arranged in the stirring drum (11), the plurality of stirring rods (12) being arranged on the first driving mechanism in a staggered sliding manner along the axial direction of the first driving mechanism, the first driving mechanism being used to drive the stirring rods (12) to rotate around the axis of the stirring drum (11); A feedback mechanism, wherein the feedback mechanism is arranged in the first drive mechanism, and the feedback mechanism can control the end of the stirring rod (12) to retract relative to the first drive mechanism after the force applied to the stirring rod (12) reaches a threshold value.

2. The fertilizer mixing device for composite fertilization according to claim 1, characterized in that: The first driving mechanism comprises a first mounting plate (21), a second mounting plate (22) is arranged above the first mounting plate (21), an upper end of the second mounting plate (22) is fixedly connected to a vertically arranged support rod (23), an upper end of the support rod (23) is fixedly connected to a third mounting plate (24), an upper end of the third mounting plate (24) is fixedly connected to a first rotating motor (25), a left end of the first rotating motor (25) is drivingly connected to an output shaft (26), the output shaft (26) extends leftward into the mixing drum (11), the feedback mechanism is arranged on an outer side wall of the output shaft (26), and the mixing rod (12) is arranged on the feedback mechanism.

3. The fertilizer mixing device for composite fertilization according to claim 2, characterized in that: The feedback mechanism comprises a first sleeve (31), the first sleeve (31) being sleeved on a side wall of an output shaft (26), a first housing (32) being fixedly connected to the right end of the first sleeve (31), the first housing (32) being rotatably connected to the output shaft (26), a push rod (33) being arranged in the first housing (32), the push rod (33) being fixedly connected to the output shaft (26), a first connecting block (34) being fixedly connected to the inner wall of the first housing (32), a second connecting block (35) being slidably connected to the inner wall of the first housing (32), and a fixed connection between the first connecting block (34) and the second connecting block (35). The elastic telescopic rod (36) is configured such that the side wall of the push rod (33) can rotate with the output shaft (26) to squeeze the second connecting block (35); the outer side wall of the first sleeve (31) is respectively provided with a first control mechanism and a second control mechanism; the stirring rod (12) is provided on the first control mechanism; the first control mechanism is used to control the contraction of the stirring rod (12); the elastic telescopic rod (36) is externally connected to a displacement sensor; the displacement sensor is used to control the first control mechanism according to the compression amount of the elastic telescopic rod (36); and the second control mechanism is used to control the first drive mechanism and the feedback mechanism to move downward relative to the stirring drum (11) as a whole.

4. The fertilizer mixing device for composite fertilization according to claim 3, characterized in that: The first control mechanism comprises a second sleeve (41), the second sleeve (41) being sleeved on the first sleeve (31), a second driving mechanism being arranged at the right end of the second sleeve (41), the stirring rod (12) being slidably connected to the outer wall of the second sleeve (41) along a radially vertical direction of the second sleeve (41), a side of the stirring rod (12) close to the second sleeve (41) being provided with teeth, an annular avoidance groove being arranged at a lateral position of the stirring rod (12) on the inner wall of the second sleeve (41), the first gear (42) being arranged in the avoidance groove, the first gear (42) being respectively meshed with the corresponding side wall of the stirring rod (12), the first gear (42) being fixedly connected to the first sleeve (31), and the second driving mechanism being used for controlling relative rotation between the first sleeve (31) and the second sleeve (41).

5. The fertilizer mixing device for composite fertilization according to claim 4, characterized in that: The second driving mechanism comprises a second housing (51), the second housing (51) being fixedly connected to the right end of the second sleeve (41), a second rotating motor (52) being fixedly connected to the inner wall of the second housing (51), and an output shaft of the second rotating motor (52) being fixedly connected to a second gear (53); the second rotating motor (52) having a self-locking function, and when the second rotating motor (52) is in standby mode, the output shaft of the second rotating motor (52) is locked; the displacement sensor is used to control the operation of the second rotating motor (52), a third gear (54) being arranged in the second housing (51), the third gear (54) being fixedly connected to the outer wall of the second sleeve (41), and the second gear (53) meshing with the third gear (54).

6. The fertilizer mixing device for composite fertilization according to claim 5, characterized in that: The second control mechanism comprises a telescopic motor (61), the telescopic motor (61) being fixedly connected to the upper end of the first mounting plate (21), the first sleeve (31) being rotatably connected to a bearing (62), the lower end of the bearing (62) being fixedly connected to a connecting rod (63), the connecting rod (63) being fixedly connected to the upper end of the second mounting plate (22), the lower end of the second mounting plate (22) being fixedly connected to the output shaft of the telescopic motor (61), the right end of the mixing drum (11) being horizontally penetrated by a notch (64), the second shell (51) being vertically slidably connected to the right end of the mixing drum (11), the upper and lower ends of the second shell (51) being fixedly connected to a U-shaped plate (65), the U-shaped plate (65) being used to seal the notch (64); the second rotating motor (52) being externally connected to a controller, the controller being capable of controlling the telescopic motor (61) to work at the second rotating motor (52).

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