Single-shaft type stirring head

Abstract

The invention discloses a single-shaft type stirring head, and relates to the technical field of stirring heads, the single-shaft type stirring head comprises a shell assembly installed at the position of a to-be-stirred material; the input assembly is used for inputting materials; the two planetary speed reducers are mounted in the shell assembly; the two stirring assemblies are respectively driven by the output ends of the two planetary speed reducers and are used for completing material stirring; the driving assembly can drive the two planetary speed reducers at the same time, and the shell assembly comprises a first shell which is installed at the position of materials to be stirred; the first rotating shaft, the first bevel gear, the second bevel gear and the second rotating shaft are sequentially driven by the starting driving part to rotate, rotation of the second rotating shaft is transmitted to the two planetary speed reducers at the same time, and the two planetary speed reducers are driven to rotate at the same time. And double transmission can be realized through a single motor and a single shaft, so that the use of the motor is saved, and the assembly cost of the device is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of stirring heads, in particular to a single-shaft stirring head. Background Art

[0002] Single-shaft stirring heads are commonly used in industrial stirring and mixing equipment, especially in the chemical, pharmaceutical, food and other industries.

[0003] An existing high-speed stirring head and intelligent high-speed mixing device (Announcement No.: CN118809916B) used in polyurethane sponge production uses a stirring method by introducing gas during use. The rotation process can enhance the collision between fluids and between the stirring head and fluid, and accelerate the fluid flow rate, which can improve the stirring effect while reducing agglomeration.

[0004] However, this device uses a motor with a mounting plate to drive the rotating shaft. Each motor can only drive one shaft for stirring. To achieve stirring at different locations, additional motors and shafts are required, increasing the cost of the device. The inventors discovered that when a single motor drives two shafts for stirring, components are prone to abnormal noise and increased wear. The inventors discovered that this is due to the different instantaneous torques of the two shafts driven by the first motor. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides a single-shaft stirring head to solve the problems raised in the above background technology: the single-shaft stirring head comprises: A housing assembly, which is installed at the location of the material to be mixed; Input component, which is used for material input; Two planetary reducers mounted inside the housing assembly; Two stirring assemblies, which are driven by the output ends of two planetary reducers respectively and are used to complete material stirring; A drive assembly capable of simultaneously driving two planetary reducers includes a second bevel gear and two second rotating shafts fixedly connected to the second bevel gear. The second rotating shafts are coupled to the planetary reducers. The second rotating shafts are set to be elastic so that the coupling force of the two second rotating shafts on the two planetary reducers is the same.

[0006] In a preferred embodiment, each second rotating shaft includes an input part and an output part, the input part is fixedly connected to the second bevel gear, the output part is connected to the first tooth part, the input part has a hollow channel, the input part includes a curved channel and a movable channel, the movable channel extends from the curved channel to the hollow channel, and the surface of the output part is provided with a curved rod capable of moving in the curved channel and a connecting rod capable of moving in the movable channel, the end of the curved rod and the bottom of the curved channel are adjustment chambers, and the adjustment chambers of the two second rotating shafts are connected.

[0007] Preferably, the housing assembly includes: A first shell is installed at the location of the material to be mixed; a second housing fixedly mounted on the first housing; a third housing fixedly mounted on the second housing; Two fourth shells are fixedly mounted on the third shell.

[0008] Preferably, the input component includes: A plurality of first plates fixedly mounted on the first shell; a plurality of second plates, each of which is detachably mounted on the plurality of first plates; The tube body sequentially passes through the plurality of first plates and the plurality of second plates, and the tube body and the plurality of second plates are fixedly connected.

[0009] Preferably, the stirring assembly includes: A sixth housing, which is fixedly mounted on the output end of the planetary reducer; a plurality of plates fixedly mounted on the sixth housing; The spiral blade is fixedly mounted on the sixth shell.

[0010] Preferably, a plurality of through holes are provided inside the spiral blade.

[0011] Preferably, the drive assembly includes: A driving member fixedly mounted inside the first housing; a first rotating shaft fixedly mounted on the driving member; a fifth housing fixedly mounted in the second housing, wherein a portion of the fifth housing extends into the third housing; a first bevel gear disposed in the fifth housing, the first rotating shaft passing through the fifth housing and extending into the fifth housing, the first bevel gear being fixedly mounted on the first rotating shaft; a second rotating shaft rotatably connected to the fifth housing, wherein two ends of the second rotating shaft are respectively connected to input ends of the two planetary reducers; The second bevel gear is fixedly mounted on the second rotating shaft, and the second bevel gear is meshed with the first bevel gear.

[0012] Preferably, the driving member is a motor.

[0013] Preferably, the first bevel gear is smaller than the second bevel gear.

[0014] Preferably, the two planetary reducers are fixed to the two fourth housings respectively.

[0015] Preferably, the first rotating shafts are connected via a plurality of couplings.

[0016] The present invention starts the driving member to sequentially drive the first rotating shaft, the first bevel gear, the second bevel gear, and the second rotating shaft to rotate. The second rotating shaft simultaneously transmits its own rotation to the two planetary reducers and drives the two planetary reducers to rotate at the same time. Therefore, dual transmission can be achieved through a single motor and a single shaft, saving the use of motors and reducing the assembly cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an axial view of the present invention; Figure 2 A bottom view of the present invention; Figure 3 It is a partial cross-sectional view of the present invention; Figure 4 It is a partial exploded view of the present invention; Figure 5 It is a partial structural diagram of the driving component of the present invention; Figure 6 A partial axial view of the drive assembly of the present invention; Figure 7 It is a schematic diagram of the partial structure of this application; Figure 8 It is a schematic diagram of the partial structure of this application; Figure 9 It is a schematic diagram of the local structure of this application.

[0018] Reference numerals: 100, housing assembly; 110, first housing; 120, second housing; 130, third housing; 140, fourth housing; 200, input assembly; 210, first plate; 220, second plate; 230, tube; 300, drive assembly; 310, drive member; 320, first rotating shaft; 330, fifth housing; 340, first bevel gear; 350, second rotating shaft; 351, input portion; 3511, curved channel; 3512, movable groove; 352, output portion; 3521, curved rod; 3522, connecting rod; 3523, spring; 353, first tooth portion; 354, second tooth portion; 360, second bevel gear; 400, planetary reducer; 500, stirring assembly; 510, sixth housing; 520, sheet; 530, spiral blade; 531, through hole; DETAILED DESCRIPTION The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] In order to solve the problems mentioned in the technical solution, an embodiment of the present application provides a single-axis stirring head, including: a shell assembly 100 for installation and fixation, an input assembly 200 for conveying materials, a drive assembly 300 for providing power, two planetary reducers 400, and two stirring assemblies 500.

[0020] like Figure 1 As shown, the housing assembly 100 can be installed at the location of the material to be mixed. Specifically, the housing assembly 100 includes: a first housing 110, a second housing 120, a third housing 130, and two fourth housings 140. Figure 1 As shown, the first shell 110 is hollow inside and has a long tubular shape. Two plates with holes are provided at one end. The first shell 110 can be installed at the position of the material to be mixed with the help of the holes and bolts. A flange is provided at the other end of the first shell 110 for connecting to the second shell 120. Figure 4 As shown, the second shell 120 is hollow inside and cylindrical, with a flange provided at one end for fixedly connecting to the first shell 110; Figure 4 As shown, the third shell 130 is hollow inside and has a triangular shape. It is fixed to the outer wall of the second shell 120 by welding. The two opening positions of the third shell 130 (the opening positions are as shown in FIG. Figure 4 As shown) are provided with flanges for fixed connection with the two fourth shells 140; Figure 4As shown, the two fourth shells 140 are hollow inside and cylindrical, and are fixedly installed at the two opening positions of the third shell 130. The ends of the two fourth shells 140 are both provided with flanges, which are used to fix the two planetary reducers 400.

[0021] like Figure 2 As shown, the input assembly 200 is used for inputting materials. Specifically, the input assembly 200 includes: two first plates 210, two second plates 220, and a tube 230. The two first plates 210 are square plates, which are fixedly mounted on the outer surface of the first shell 110 in sequence. The two first plates 210 have holes formed inside, which are used to connect the two second plates 220 and allow the tube 230 to pass through. The two second plates 220 are plate-shaped, with holes formed on their surfaces, and can be detachably mounted on the two first plates 210 by bolts. The tube 230 is cylindrical and bent at one end near the two stirring assemblies 500. The other end of the tube 230 is provided with a flange, which can be connected to the material pipe and complete the material transportation. The tube 230 passes through the two first plates 210 and the two second plates 220 in sequence, and the tube 230 and the two second plates 220 are fixedly connected.

[0022] like Figure 4 As shown, the two planetary reducers 400 are of the prior art. The two planetary reducers 400 are fixed to the two fourth housings 140 respectively through flanges. The two planetary reducers 400 are arranged inside the two fourth housings 140 .

[0023] like Figure 4 As shown, the two stirring assemblies 500 are driven by the output ends of the two planetary reducers 400 respectively, and are used to complete material stirring. Specifically, the stirring assembly 500 includes: a sixth shell 510, a plurality of sheets 520, and a spiral blade 530.

[0024] Among them, the sixth shell 510 is hollow inside, cylindrical, and open at one end. The open end is used to be fixedly installed at the output end of the planetary reducer 400. The sixth shell 510 can be driven by the planetary reducer 400 to rotate, and the other end of the sixth shell 510 is closed; the plurality of sheets 520 are rectangular sheets, which are evenly installed along the circumferential direction of the closed end surface of the sixth shell 510, and can apply a force to the material to stir uniformly along the circumferential direction of the closed end surface of the sixth shell 510 when the sixth shell 510 rotates; the spiral blade 530 is a spiral sheet structure, which is fixedly installed on the circumferential outer wall of the sixth shell 510. When the sixth shell 510 rotates, it can use its own spiral sheet structure to push the material toward the direction of the plurality of sheets 520 and cooperate with the plurality of sheets 520 to increase the stirring effect on the material.

[0025] In order to increase the stirring effect of the material, a further solution is provided, such as Figure 4 As shown, a plurality of through holes 531 are opened inside the spiral blade 530. When the spiral blade 530 rotates following the sixth shell 510, part of the material is pushed by the spiral blade 530, and another part of the material passes through the plurality of through holes 531. The different movements between the materials will increase the degree of disorder of the materials and increase the mixing uniformity of the materials.

[0026] like Figure 3 and Figure 5 As shown, the drive assembly 300 can drive two planetary reducers 400 at the same time. Specifically, the drive assembly 300 includes: a driving member 310, a first rotating shaft 320, a fifth housing 330, a first bevel gear 340, a second bevel gear 360, and two second rotating shafts (350) fixedly connected to the second bevel gear 360. The second rotating shafts 350 are coupled to the planetary reducers 400, and the second rotating shafts are set to be elastic so that the coupling forces of the two second rotating shafts on the two planetary reducers 400 are the same.

[0027] In order to make the coupling force of the second shaft to the two planetary reducers 400 the same, as shown in FIG. Figure 8 As shown, in a specific embodiment, each second rotating shaft 350 includes an input portion 351 and an output portion 352. The input portion 351 is fixedly connected to the second bevel gear 360. The output portion 352 is connected to the first tooth portion 353. The input portion 351 has a hollow channel. The input portion 351 includes a curved channel 3511 and a movable channel 3512. The movable channel 3512 extends from the curved channel 3511 to the hollow channel. The surface of the output portion 352 is provided with a curved rod 3521 that can move in the curved channel 3511 and a connecting rod 3522 that can move in the movable channel 3512. The end of the curved rod 3521 and the bottom of the curved channel 3511 form an adjustment chamber. During stirring, the second bevel gear 360 drives the input portion 351 to rotate, thereby squeezing the air in the adjustment chamber and further driving the portion 352 to rotate. Figure 8 As shown, each input part 351 is provided with two adjustment chambers. By providing the adjustment chambers, the connection between the input part 351 and the output part 352 can have a certain elasticity. When the resistance at the end of the stirring assembly 500 suddenly increases, the damage to the gears and other components can be reduced. During use, the stirring assembly 500 may sometimes experience uneven material distribution, resulting in different torques on both sides of the second bevel gear 360. This can easily cause the gears and other components to deflect, thereby affecting the transmission of the gears and other components, and may seriously damage the components. To solve this problem, in an improved solution, the adjustment chambers of the two second rotating shafts 350 are connected. When the resistance of the stirring assembly 500 coupled to one second rotating shaft 350 increases instantly, the gas in the adjustment chamber of the second rotating shaft 350 can enter the adjustment chamber of the other second rotating shaft 350, so that the torques of the two second rotating shafts 350 on their corresponding stirring assemblies 500 are always the same. Furthermore, the connecting rod 3522 is connected to a spring 3523, which can stir the position of the connecting rod 3522 so that the connecting rod is in a relatively central position in the movable channel 3512.

[0028] In order to fully stir some blind spots, in a further solution, the first tooth portion 353 is meshedly connected with the second tooth portion 354, and the second tooth portion 354 is connected to the planetary reducer 400. There is a certain deflection angle between the first tooth portion 353 and the second tooth portion 354, preferably 18 degrees, so that the stirring assembly 500 can fully cover the blind spots.

[0029] The driving member 310 in this embodiment is a motor, which can be controlled to perform forward and reverse rotation, self-locking, and change the speed, etc. It is fixedly installed inside the first housing 110, such as Figure 3 As shown, a plate-shaped mounting platform is fixedly connected to the first housing 110, and the driving member 310 is screwed onto the plate-shaped mounting platform; the first rotating shaft 320 is fixedly mounted on the driving member 310 and can be rotated by means of the driving member 310, as shown in FIG. Figure 3 As shown, the first rotating shaft 320 is connected by a plurality of couplings; the fifth housing 330 is semicircular in shape and hollow inside, with a flange provided on its edge, fixedly mounted inside the second housing 120 through the flange, and part of the structure of the fifth housing 330 extends into the third housing 130; the first bevel gear 340 is a prior art, which is arranged in the fifth housing 330, the first rotating shaft 320 passes through the fifth housing 330 and extends into the fifth housing 330, the first bevel gear 340 is fixedly mounted on the first rotating shaft 320, and can rotate with the first rotating shaft 320; the second rotating shaft 350 is a prior art, rotatably connected to the fifth housing 330 through a bearing (as shown in FIG. Figure 5As shown), the two ends of the second rotating shaft 350 are respectively connected to the input ends of the two planetary reducers 400, and can transmit its own rotation to the two planetary reducers 400 at the same time; the second bevel gear 360 is a prior art, which is fixedly mounted on the outer wall of the second rotating shaft 350, and a part of the second bevel gear 360 enters the fifth housing 330 and can mesh with the first bevel gear 340. When the driving assembly 300 is in use, the driving member 310 is first started to drive the first rotating shaft 320 to rotate, the first rotating shaft 320 drives the first bevel gear 340 to rotate, the first bevel gear 340 drives the second bevel gear 360 to rotate, and the second bevel gear 360 drives the second rotating shaft 350 to rotate. The second rotating shaft 350 transmits its own rotation to the two planetary reducers 400 at the same time and drives the two planetary reducers 400 to rotate at the same time. Therefore, dual transmission can be achieved through a single motor and a single shaft, saving the use of a motor and reducing the assembly cost of the device.

[0030] During the use of this device, researchers found that the stirring of the material would show a local uneven phenomenon, but the reason for the unevenness was unclear. After a long period of practice, they found that since the second rotating shaft 350 needs to bear the pressure applied by the two stirring components 500 at the same time, and the torque input by the second rotating shaft 350 is small, it will cause the input to be unstable and the stirring of the material is not uniform. In order to solve this technical problem, further solutions are proposed, such as Figure 5 As shown, the size of the first bevel gear 340 is smaller than the second bevel gear 360, so the input torque of the second rotating shaft 350 is increased, the input is more stable, and the mixing of the material is more uniform.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. Single-shaft stirring head, characterized in that: include: A housing assembly (100) mounted at a location where the material is to be stirred; An input component (200) for inputting materials; Two planetary reducers (400) mounted inside the housing assembly (100); Two stirring assemblies (500), which are driven by the output ends of the two planetary reducers (400) and are used to complete material stirring; A drive assembly (300) capable of simultaneously driving two planetary reducers (400), the drive assembly (300) comprising a second bevel gear (360), two second rotating shafts (350) fixedly connected to the second bevel gear (360), the second rotating shafts (350) being coupled to the planetary reducers (400), and the second rotating shafts being set to be elastic so that the coupling forces of the two second rotating shafts on the two planetary reducers (400) are the same.

2. The uniaxial stirring head according to claim 1, characterized in that: Each second rotating shaft (350) includes an input portion (351) and an output portion (352). The input portion (351) is fixedly connected to the second bevel gear (360). The output portion (352) is connected to the first tooth portion (353). The input portion (351) has a hollow channel. The input portion (351) includes a curved channel (3511) and a movable channel (3512). The movable channel (3512) extends from the curved channel (3511) to the hollow channel. A curved rod (3521) capable of moving in the curved channel (3511) and a connecting rod (3522) capable of moving in the movable channel (3512) are provided on the surface of the output portion (352). The end of the curved rod (3521) and the bottom of the curved channel (3511) form an adjustment cavity. The adjustment cavities of the two second rotating shafts (350) are connected.

3. The uniaxial stirring head according to claim 1, characterized in that: The housing assembly (100) comprises: A first housing (110) is installed at a location where the material is to be stirred; A second housing (120) fixedly mounted on the first housing (110); A third housing (130) fixedly mounted on the second housing (120); Two fourth shells (140) are fixedly mounted on the third shell (130).

4. The uniaxial stirring head according to claim 2, characterized in that: The input component (200) comprises: A plurality of first plates (210) fixedly mounted on the first housing (110); a plurality of second plates (220) which are detachably mounted on the plurality of first plates (210); The tube body (230) sequentially passes through the plurality of first plates (210) and the plurality of second plates (220), and the tube body (230) and the plurality of second plates (220) are fixedly connected.

5. The uniaxial stirring head according to claim 1, characterized in that: The stirring assembly (500) comprises: A sixth housing (510) fixedly mounted on the output end of the planetary reducer (400); a plurality of sheets (520) fixedly mounted on the sixth housing (510); The spiral blade (530) is fixedly mounted on the sixth housing (510).

6. The uniaxial stirring head according to claim 4, characterized in that: A plurality of through holes (531) are provided inside the spiral blade (530).

7. The uniaxial stirring head according to claim 1, characterized in that: The driving assembly (300) comprises: A driving member (310) fixedly mounted inside the first housing (110); A first rotating shaft (320) fixedly mounted on the driving member (310); a fifth housing (330) fixedly mounted in the second housing (120), with a portion of the structure of the fifth housing (330) extending into the third housing (130); a first bevel gear (340) disposed in the fifth housing (330), the first rotating shaft (320) passing through the fifth housing (330) and extending into the fifth housing (330), and the first bevel gear (340) being fixedly mounted on the first rotating shaft (320); a second rotating shaft (350) rotatably connected to the fifth housing (330), wherein two ends of the second rotating shaft (350) are respectively connected to input ends of two planetary reducers (400); The second bevel gear (360) is fixedly mounted on the second rotating shaft (350), and the second bevel gear (360) is meshed with the first bevel gear (340).

8. The uniaxial stirring head according to claim 6, characterized in that: The driving member (310) is a motor.

9. The uniaxial stirring head according to claim 6, characterized in that: The first bevel gear (340) is smaller in size than the second bevel gear (360).

10. The uniaxial stirring head according to claim 2, characterized in that: The two planetary reducers (400) are respectively fixed to the two fourth housings (140).

11. The uniaxial stirring head according to claim 6, characterized in that: The first rotating shaft (320) is connected via a plurality of couplings.

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