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] This invention relates to the field of stirring head technology, specifically a single-shaft stirring head. Background Technology

[0002] Single-shaft mixing heads are commonly used in industrial mixing and blending equipment, and are widely used in industries such as environmental remediation, river and water conservancy projects, port and dock construction, industrial environmental pollution remediation, easy collapse of highway subgrade, and soft soil treatment such as mountain protection and reinforcement.

[0003] An existing high-speed stirring head and intelligent high-speed mixing device (announcement number: CN118809916B) used in the production of polyurethane foam can enhance the collision between fluids and between the stirring head and the fluid by introducing gas and rotating the device, thereby accelerating the fluid flow rate, improving the stirring effect and reducing agglomeration.

[0004] However, in this device, which uses a hydraulic motor to drive the rotating shaft, one hydraulic motor can only drive one rotating shaft for stirring. If stirring is required at different locations, additional hydraulic motors and rotating shafts are needed, increasing the cost of the device. The inventors discovered that when one variable hydraulic motor drives two rotating shafts for stirring, the components are prone to abnormal noise and greater wear. The inventors found that this is due to the difference in instantaneous torque between the two rotating shafts driven by the variable hydraulic power. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a single-shaft stirring head to solve the problems mentioned in the background section: The single-shaft stirring head includes: The housing assembly is installed at the front end of the input boom at the location of the material to be mixed. Input component, used for material input and insertion into the curing object arm; Two planetary gearboxes are installed inside the housing assembly; Two mixing components are driven by the outputs of two planetary reducers and are used to mix materials. A drive assembly capable of simultaneously driving two planetary gear reducers includes a second bevel gear and two second shafts fixedly connected to the second bevel gear. The second shafts are coupled to the planetary gear reducers, preferably via a transmission connection device. The second shafts are designed to be elastic, ensuring that the coupling force between the two second shafts and the two planetary gear reducers is equal.

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

[0007] Preferably, the housing assembly includes: The first housing is installed at the location of the material to be stirred; The second housing is fixedly mounted on the first housing; The third housing is fixedly mounted on the second housing; Two fourth housings are fixedly mounted on the third housing.

[0008] Preferably, the input component includes: Several first plates are fixedly mounted on the first housing; Several second plates are detachably mounted on several first plates; A tube body, which sequentially passes through several first plates and several second plates, and the tube body and several second plates are fixedly connected.

[0009] Preferably, the stirring assembly includes: The sixth housing is fixedly installed at the output end of the planetary reducer; Several sheet-like components are fixedly mounted on the sixth housing. The helical blades are fixedly mounted on the sixth housing.

[0010] Preferably, the spiral blade has several through holes inside.

[0011] Preferably, the driving component includes: The driving component is fixedly installed inside the first housing; The first rotating shaft is fixedly mounted on the driving component; A fifth housing is fixedly installed inside the second housing, and a portion of the structure of the fifth housing extends into the third housing; A first bevel gear is disposed inside a fifth housing. A first rotating shaft passes through the fifth housing and extends into the fifth housing. The first bevel gear is fixedly mounted on the first rotating shaft. The second rotating shaft is rotatably connected to the fifth housing, and its two ends are respectively connected to the input ends of two planetary reducers; The second bevel gear is fixedly mounted on the second rotating shaft, and the second bevel gear meshes with the first bevel gear.

[0012] Preferably, the driving component is an electric motor, and more preferably a piston-type variable hydraulic drive motor, which is suitable for direct connection to the hydraulic system of a loader or excavator under normal circumstances.

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

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

[0015] Preferably, the first rotating shaft is connected by several couplings.

[0016] This invention enables the first rotating shaft, the first bevel gear, the second bevel gear, and the second rotating shaft to rotate sequentially by starting the drive component. The second rotating shaft transmits its own rotation to two planetary reducers and drives the two planetary reducers to rotate simultaneously. Therefore, dual transmission can be achieved through a hydraulic motor and a single shaft, which greatly stabilizes the torque required for operation and achieves a uniform stirring effect. Attached Figure Description

[0017] Figure 1 This is an axial view of the present invention; Figure 2 This is a bottom view of the present invention; Figure 3 This is a partial cross-sectional view of the present invention; Figure 4 This is a partial exploded view of the present invention; Figure 5 This is a partial structural diagram of the driving component of the present invention; Figure 6 This is a partial axial view of the drive component of the present invention; Figures 7-9 This is a partial structural diagram of the present invention.

[0018] Figure label: 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 component; 320. First rotating shaft; 330. Fifth housing; 340. First bevel gear; 350. Second rotating shaft; 351. Input section; 3511. Curved channel; 3512. Movable groove; 352. Output section; 3521. Curved rod; 3522. Connecting rod; 3523. Spring; 353. First tooth; 354. Second tooth; 360. Second bevel gear; 400. Planetary reducer; 500. Stirring assembly; 510. Sixth housing; 520. Plate; 530. Spiral blade; 531. Through hole; Detailed Implementation The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] To address the problems mentioned in the technical solutions, this application provides a single-shaft stirring head, including: a housing assembly 100 for mounting and fixing, 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 stirred. Specifically, the housing assembly 100 includes: a first housing 110, a second housing 120, a third housing 130, and two fourth housings 140. Wherein, as... Figure 1 As shown, the first housing 110 is hollow and long tubular, with two perforated plates at one end. The first housing 110 can be installed at the location of the material to be stirred using the perforations and bolts. The other end of the first housing 110 has a flange for connecting to the second housing 120. Figure 4 As shown, the second housing 120 is hollow and cylindrical, with a flange at one end for fixing the first housing 110; Figure 4 As shown, the third housing 130 is hollow inside and has a triangular shape. It is fixedly installed on the outer wall of the second housing 120 by welding. The third housing 130 has two openings (the opening positions are as shown in the figure). Figure 4 (As shown) are all equipped with flanges for fixed connection with the two fourth housings 140; as Figure 4As shown, the two fourth housings 140 are hollow and cylindrical, and are fixedly installed at the two opening positions of the third housing 130. The ends of the two fourth housings 140 are provided with flanges for fixing the two planetary reducers 400.

[0021] like Figure 2 As shown, the input component 200 is used for material input. Specifically, the input component 200 includes: two first plates 210, two second plates 220, and a tube 230. The two first plates 210 are square plates, which are sequentially fixedly installed on the outer surface of the first housing 110. The interior of each first plate 210 has holes for connecting to the two second plates 220 and allowing the tube 230 to pass through. The two second plates 220 are plates with holes on their surfaces, allowing them to be detachably installed on the two first plates 210 using bolts. The tube 230 is a cylindrical tube, bent at one end near the two mixing components 500, and has a flange at the other end for connecting to a material pipe and conveying materials. The tube 230 sequentially passes through the two first plates 210 and the two second plates 220, 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 existing technologies. The two planetary reducers 400 are fixed to the two fourth housings 140 respectively by flanges, and the two planetary reducers 400 are disposed inside the two fourth housings 140.

[0023] like Figure 4 As shown, the two stirring components 500 are driven by the output ends of the two planetary reducers 400 respectively, and are used to complete the stirring of materials. Specifically, the stirring component 500 includes: a sixth housing 510, several plates 520, and a spiral blade 530.

[0024] The sixth housing 510 is hollow and cylindrical, with one open end for fixed installation at the output end of the planetary reducer 400. The sixth housing 510 can be driven to rotate by the planetary reducer 400, and the other end of the sixth housing 510 is closed. Several rectangular plates 520 are evenly installed along the circumferential direction of the closed end surface of the sixth housing 510, and can apply a uniform stirring force to the material along the circumferential direction of the closed end surface of the sixth housing 510 when the sixth housing 510 rotates. The spiral blade 530 is a spiral plate structure, which is fixedly installed on the outer circumferential wall of the sixth housing 510. When the sixth housing 510 rotates, it can use its spiral plate structure to push the material towards the plates 520 and cooperate with the plates 520 to increase the stirring effect on the material.

[0025] To enhance the mixing effect on the materials, further solutions include, for example... Figure 4 As shown, the spiral blade 530 has several through holes 531 inside. When the spiral blade 530 rotates with the sixth housing 510, some of the material is pushed by the spiral blade 530, and another part of the material passes through the several through holes 531. The different movements between the materials will increase the degree of material disorder 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 simultaneously. Specifically, the drive assembly 300 includes: a drive component 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. 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 400 is the same.

[0027] In order to ensure that the coupling force of the second rotating shaft to the two planetary reducers 400 is the same, such as Figure 8 As shown, in a specific embodiment, each second rotating shaft 350 includes an input section 351 and an output section 352. The input section 351 is fixedly connected to the second bevel gear 360, and the output section 352 is connected to a first toothed section 353. The input section 351 has a hollow channel, including 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 section 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 cavity. During stirring, the second bevel gear 360 drives the input section 351 to rotate, thereby compressing the air in the adjustment cavity and further driving the input section 352 to rotate. Figure 8 As shown, each input section 351 is provided with two adjustment chambers. By setting the adjustment chambers, the connection between the input section 351 and the output section 352 can be made flexible. When the resistance at the end of the stirring assembly 500 suddenly increases, it can reduce damage to components such as gears. During use, the stirring assembly 500 sometimes experiences uneven material distribution, resulting in inconsistent torque on both sides of the second bevel gear 360. This can easily cause gears and other components to deflect, affecting their transmission and potentially damaging them. To address this issue, the improved design connects the adjustment chambers of the two second rotating shafts 350. This allows gas from the adjustment chamber of one second rotating shaft 350 to flow into the adjustment chamber of the other, ensuring that the torque on the corresponding stirring assembly 500 remains constant across both shafts. Furthermore, a spring 3523 is connected to the connecting rod 3522, which helps to agitate the position of the connecting rod 3522, keeping it in a more central position within the movable channel 3512.

[0028] In order to fully stir some dead corners, in a further embodiment, the first tooth 353 is engaged with the second tooth 354, the second tooth 354 is connected to the planetary reducer 400, and there is a certain deflection angle between the first tooth 353 and the second tooth 354, preferably 18 degrees, so that the stirring assembly 500 can fully cover the dead corners.

[0029] The drive component 310 described in this embodiment is a hydraulic piston variable displacement motor. This motor can be controlled to perform forward and reverse rotation, self-locking, and speed changes, etc., and is fixedly installed inside the first housing 110. Figure 3 As shown, a plate-shaped mounting platform is fixedly connected inside the first housing 110, and the driving component 310 is screwed onto the plate-shaped mounting platform; the first rotating shaft 320 is fixedly mounted on the driving component 310 and can rotate with the aid of the driving component 310, as shown. Figure 3 As shown, the first rotating shaft 320 is connected by several couplings; the fifth housing 330 is semi-circular in shape and hollow inside, with flanges on its edges, and is fixedly installed inside the second housing 120 via the flanges. Part of the structure of the fifth housing 330 extends into the third housing 130; the first bevel gear 340 is prior art and is disposed inside 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 installed on the first rotating shaft 320 and can rotate with the first rotating shaft 320; the second rotating shaft 350 is prior art and is rotatably connected to the fifth housing 330 via bearings (e.g., 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 simultaneously. The second bevel gear 360 is existing technology, which is fixedly installed on the outer wall of the second rotating shaft 350. A part of the second bevel gear 360 enters the fifth housing 330 and can mesh with the first bevel gear 340. When the drive assembly 300 is in use, the drive component 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. 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 simultaneously and drives the two planetary reducers 400 to rotate simultaneously. Therefore, dual transmission can be achieved by a single motor or hydraulic motor and a single shaft, saving the use of motors and reducing the assembly cost of the device.

[0030] During the use of this device, researchers discovered that the material mixing exhibited localized unevenness, but the cause was unclear. After extensive testing, it was found that the second rotating shaft 350 needed to simultaneously withstand the pressure applied by the two mixing components 500, while the torque input to the second rotating shaft 350 was relatively small. This resulted in unstable input and uneven mixing of the material. To solve this technical problem, a further solution was proposed, such as... Figure 5 As shown, the size of the first bevel gear 340 is smaller than that of the second bevel gear 360, so the input torque of the second rotating shaft 350 increases, the input is more stable, and the material is stirred more evenly.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

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

Claims

1. A single-shaft stirring head, characterized in that, include: A housing assembly (100) is installed at the location of the material to be stirred; Input component (200) for inputting materials; Two planetary gearboxes (400) are mounted inside the housing assembly (100); Two mixing components (500) are driven by the outputs of two planetary reducers (400) and are used to mix materials. A drive assembly (300) capable of simultaneously driving two planetary reducers (400) includes a second bevel gear (360) and two second shafts (350) fixedly connected to the second bevel gear (360). The second shafts (350) are coupled to the planetary reducers (400). The second shafts are set to be elastic, such that the coupling force of the two second shafts on the two planetary reducers (400) is the same.

2. The single-shaft stirring head according to claim 1, characterized in that, Each second rotating shaft (350) includes an input section (351) and an output section (352). The input section (351) is fixedly connected to the second bevel gear (360). The output section (352) is connected to the first tooth section (353). The input section (351) has a hollow channel. The input section (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 section (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) are adjustment cavities. The adjustment cavities of the two second rotating shafts (350) are connected.

3. The single-shaft stirring head according to claim 1, characterized in that, The housing assembly (100) includes: The first housing (110) is installed at the location of the material to be stirred; The second housing (120) is fixedly mounted on the first housing (110); The third housing (130) is fixedly mounted on the second housing (120); Two fourth housings (140) are fixedly mounted on the third housing (130).

4. The single-shaft stirring head according to claim 2, characterized in that, The input component (200) includes: Several first plates (210) are fixedly mounted on the first housing (110); A plurality of second plates (220) are detachably mounted on a plurality of first plates (210); The tube (230) passes through several first plates (210) and several second plates (220) in sequence, and the tube (230) and several second plates (220) are fixedly connected.

5. The single-shaft stirring head according to claim 1, characterized in that, The stirring assembly (500) includes: The sixth housing (510) is fixedly installed at the output end of the planetary reducer (400); Several plates (520) are fixedly mounted on the sixth housing (510); The helical blade (530) is fixedly mounted on the sixth housing (510).

6. The single-shaft stirring head according to claim 4, characterized in that, The spiral blade (530) has several through holes (531) inside.

7. The single-shaft stirring head according to claim 1, characterized in that, The drive component (300) includes: A drive unit (310) is fixedly installed inside the first housing (110); The first rotating shaft (320) is fixedly mounted on the driving component (310); A fifth housing (330) is fixedly installed inside the second housing (120), and a portion of the structure of the fifth housing (330) extends into the third housing (130); The first bevel gear (340) is disposed in the fifth housing (330), the first rotating shaft (320) passes through the fifth housing (330) and extends into the fifth housing (330), and the first bevel gear (340) is fixedly mounted on the first rotating shaft (320); The second rotating shaft (350) is rotatably connected to the fifth housing (330), and the two ends of the second rotating shaft (350) are respectively connected to the 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) meshes with the first bevel gear (340).

8. The single-shaft stirring head according to claim 6, characterized in that, The size of the first bevel gear (340) is smaller than that of the second bevel gear (360).

9. The single-shaft stirring head according to claim 2, characterized in that, The two planetary reducers (400) are respectively fixed to the two fourth housings (140).

10. The single-shaft stirring head according to claim 6, characterized in that, The first rotating shaft (320) is connected by several couplings.

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