Small gear primary variable-speed stirrer

Abstract

The utility model relates to the technical field of stirrers. In particular to a small gear primary variable-speed stirrer. A small gear primary variable speed mixer comprises a rack body, a driving motor is arranged on the rack body, a frequency converter is arranged on the driving motor and electrically connected with the driving motor, the frequency converter is used for controlling the rotating speed of a rotating shaft of the driving motor, and the rotating shaft of the driving motor is connected with a rotating shaft rod through a gear assembly. The gear assembly is arranged in the rack body, part of the rotating shaft rod is arranged in the rack body, and the end, away from the rack body, of the rotating shaft rod is used for being connected with the impeller. The problems that the stirring quality of materials cannot be guaranteed and the potential safety hazard of material use is increased due to the fact that the stirring machine cannot be adjusted for different material compositions are solved.

Description

Technical Field

[0001] This utility model relates to the field of mixer technology, and in particular to a small gear-driven single-speed mixer. Background Technology

[0002] Mixers are widely used in various industries and fields, especially in today's rapidly developing chemical industry, where they play a crucial role. In the chemical industry, mixers are primarily used to mix and fully react different materials. They are machines that use a bladed shaft rotating in a cylinder or tank to stir and mix multiple raw materials, creating a mixture or a mixture of suitable consistency. There are many types of mixers, including forced-action mixers, single-shaft mixers, and twin-shaft mixers.

[0003] However, some mixers on the market have low mixing efficiency for materials. When faced with different material compositions, the mixer cannot be adjusted, and the mixing quality cannot be guaranteed, increasing the safety hazards of material use.

[0004] Therefore, how to provide a small gear-driven single-speed mixer that can be adjusted to handle different material compositions while ensuring the mixing quality and eliminating safety hazards caused by material mixing and subsequent use is an urgent technical problem to be solved. Utility Model Content

[0005] This invention provides a small gear-driven single-stage variable speed mixer, which solves the problem that when faced with different material compositions, the mixer cannot be adjusted, thus the mixing quality of the materials cannot be guaranteed, increasing the safety hazards of material use.

[0006] This utility model provides a small gear-driven single-stage variable speed mixer, comprising: a frame body, a drive motor mounted on the frame body, a frequency converter mounted on the drive motor, the frequency converter being electrically connected to the drive motor, the frequency converter being used to control the rotational speed of the drive motor shaft, the drive motor shaft being connected to a rotating shaft via a gear assembly, the gear assembly being disposed within the frame body, the rotating shaft being partially disposed within the frame body, and the end of the rotating shaft away from the frame body being used to connect to an impeller.

[0007] In one possible implementation, the gear assembly is connected to the shaft of the drive motor via a coupling.

[0008] In one possible implementation, the gear assembly includes planetary gears, a planet carrier, a sun gear, an internal gear ring, and a support frame;

[0009] There are multiple planetary gears, which are rotatably mounted on the planet carrier, and each of the multiple planetary gears meshes with the internal gear ring and the sun gear.

[0010] An output shaft is provided at the end of the planet carrier away from the planet gears, and the output shaft is connected to the rotating shaft.

[0011] An input shaft is provided at the end of the sun gear away from the planet carrier, and the input shaft is connected to the coupling.

[0012] The outer peripheral wall of the internal gear ring is connected to the support frame, which is located inside the main frame body.

[0013] In one possible implementation, the coupling includes an upper coupling end and a lower coupling end, wherein the upper coupling end is connected to the lower coupling end via a connecting block;

[0014] The free end of the upper end of the coupling is connected to the shaft of the drive motor;

[0015] The free end of the lower end of the coupling is connected to the input shaft.

[0016] In one possible implementation, the small gear-driven single-speed mixer further includes a gear compartment disposed on the main frame body, and the gear assembly is disposed within the gear compartment.

[0017] In one possible implementation, a first gear is provided on the output shaft, and a second gear is provided on the rotating shaft, wherein the first gear meshes with the second gear.

[0018] In one possible implementation, the small gear single-speed mixer further includes a first bearing, which is sleeved on the rotating shaft, and the outer peripheral wall of the first bearing is connected to the frame body through a first support plate.

[0019] In one possible implementation, the small gear-driven single-speed mixer further includes a second bearing, which is sleeved on the rotating shaft, and the outer peripheral wall of the second bearing is connected to the frame body through a second support plate.

[0020] In one possible implementation, the small gear-driven single-speed mixer also includes a fixed ring, a rotating ring, and a spring assembly;

[0021] The fixed ring is disposed at the bottom of the frame body; the rotating ring is sleeved on the rotating shaft; the spring assembly is disposed on the rotating shaft and is used to press the rotating ring tightly onto the fixed ring.

[0022] In one possible implementation, the spring assembly includes a spring seat, a deformation spring, and a spring pressure plate;

[0023] The spring seat is mounted on the rotating shaft, and a deformation spring is installed inside the spring seat;

[0024] The two ends of the deformation spring abut against the inner side wall of the spring seat and the spring pressure plate, respectively;

[0025] The bottom surface of the spring pressure plate abuts against the rotating ring so that the rotating ring fits against the fixed ring.

[0026] The beneficial effects of this invention are as follows: First, when the material is placed in a mixing tank and the drive motor is started, the motor shaft rotates, driving the gear assembly to rotate. The power provided by the drive motor is then transmitted to the rotating shaft, which in turn drives the impeller. Finally, the impeller shears and mixes the material. By controlling the frequency converter, the rotational speed of the drive motor shaft is controlled, and through the transmission of the gear assembly, the rotational speeds of the rotating shaft and impeller are further controlled. For different material compositions, the rotational speed of the rotating shaft can be adjusted, thereby improving the mixing quality of the material and eliminating safety hazards caused by material mixing. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a perspective view of a small gear-driven single-speed mixer according to the present invention.

[0029] Figure 2 This is a front view of the gear assembly of a small gear-driven single-stage speed-changing mixer according to the present invention.

[0030] Figure 3 This is a perspective view of the gear assembly of a small gear-driven single-stage speed-changing mixer according to the present invention.

[0031] Figure 4 This is a perspective view of the gear assembly and rotating shaft of a small gear-driven single-stage speed-changing mixer according to the present invention.

[0032] Figure 5 This is a front view of the coupling of a small gear-driven single-speed mixer according to the present invention;

[0033] Figure 6 This is a sectional perspective view of the coupling of a small gear-driven single-speed mixer according to the present invention.

[0034] Figure 7 This is a sectional perspective view of the spring assembly of a small gear-driven single-stage speed-changing mixer according to the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Main frame; 2. Drive motor; 3. Frequency converter; 4. Gear assembly; 401. Planetary gear; 402. Planetary carrier; 403. Sun gear; 404. Internal gear ring; 405. Support frame; 406. Input shaft; 407. Output shaft; 5. Rotating shaft; 6. Impeller; 7. Coupling; 701. Upper end of coupling; 702. Lower end of coupling; 703. Connecting block; 8. Gear compartment; 9. First gear; 10. Second gear; 11. First bearing; 12. First support plate; 13. Second bearing; 14. Second support plate; 15. Fixed ring; 16. Rotating ring; 17. Spring assembly; 1701. Spring seat; 1702. Deformation spring; 1703. Spring pressure plate. Detailed Implementation

[0037] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] See Figure 1 The present invention provides a technical solution: a small gear-driven single-stage variable speed mixer, comprising: a frame body 1, a drive motor 2 mounted on the frame body 1, a frequency converter 3 mounted on the drive motor 2, the frequency converter 3 being electrically connected to the drive motor 2, the frequency converter 3 being used to control the rotational speed of the drive motor 2's shaft, the drive motor 2's shaft being connected to a rotating shaft 5 via a gear assembly 4, the gear assembly 4 being disposed within the frame body 1, and the rotating shaft 5 being partially disposed within the frame body 1, with one end of the rotating shaft 5 away from the frame body 1 being used to connect to an impeller 6.

[0041] Specifically, the personnel place the application in the mixing tank and fix it in place. Then, the drive motor 2 is started through the frequency converter 3. The shaft of the drive motor 2 rotates, driving the gear assembly 4 to rotate. The gear assembly 4 then transmits the power provided by the drive motor 2 to the rotating shaft 5, which in turn drives the impeller 6 to rotate. Finally, the impeller 6 shears and mixes the material in the mixing tank. By controlling the frequency converter 3, the rotational speed of the drive motor 2's shaft is controlled, and then through the transmission of the gear assembly 4, the rotational speeds of the rotating shaft 5 and the impeller 6 are controlled. When dealing with different material compositions, this application can adjust the frequency converter 3 to achieve the optimal mixing speed for the material composition, improving the mixing quality and eliminating safety hazards caused by material mixing.

[0042] The top end of the rotating shaft 5 is rotatably mounted inside the frame body 1. The impeller 6 on the rotating shaft 5 can be selected as needed; this application does not limit the impeller 6. The top wall of the frame body 1 is provided with a through hole through which the shaft of the drive motor 2 passes. The bottom wall of the frame body 1 has screw holes at both ends, which, in conjunction with screws, are used to fix this application to the mixing tank.

[0043] It should be noted that the inverter 3 mentioned in this application is the Jinken general-purpose inverter 3FC100PLUS series general-purpose inverter 3 (FC100P-2S-0.4GB). The inverter 3 sends an electrical signal to the drive motor 2, and the drive motor 2 receives the electrical signal and responds, thereby changing the rotational speed of the drive motor 2 shaft. The signal transmission and data flow involved in this process are technologies known to those skilled in the art, and this application has not made any improvements to them.

[0044] See Figure 5 and Figure 6 In some embodiments, the gear assembly 4 is connected to the shaft of the drive motor 2 via a coupling 7. The coupling 7 is detachably connected to both the gear assembly 4 and the drive motor 2. The coupling 7 can reduce the vibration generated by the shaft of the drive motor 2 during rotation, thereby protecting the gear assembly 4 and the rotating shaft 5, and reducing wear between them. The detachable installation method also makes the installation and maintenance process more convenient, facilitating the replacement and repair of the gear assembly 4 and the drive motor 2, and improving the maintenance efficiency of the gear assembly 4 and the drive motor 2.

[0045] See Figure 2 and Figure 3 In some embodiments, the gear assembly 4 includes planetary gears 401, a planet carrier 402, a sun gear 403, an internal gear ring 404, and a support frame 405. Multiple planetary gears 401 are rotatably mounted on the planet carrier 402, and each planetary gear 401 meshes with both the internal gear ring 404 and the sun gear 403. An output shaft 407 is located at the end of the planet carrier 402 away from the planetary gears 401, and the output shaft 407 is connected to a rotating shaft 5. An input shaft 406 is located at the end of the sun gear 403 away from the planet carrier 402, and the input shaft 406 is connected to a coupling 7. The outer peripheral wall of the internal gear ring 404 is connected to the support frame 405, which is housed within the frame body 1.

[0046] Specifically, the drive motor 2's shaft rotates, causing the coupling 7 to rotate, which in turn drives the input shaft 406 and the sun gear 403 to rotate. Then, the planetary gear 401 rotates within the internal gear ring 404, causing the planet carrier 402 to rotate, and the output shaft 407 rotates synchronously. The gear assembly 4 transmits the power provided by the drive motor 2 to the rotating shaft 5.

[0047] The gear assembly 4 reduces the speed of the high-speed rotating shaft of the drive motor 2 and increases the torque of the drive motor 2 shaft, making the rotation of the rotating shaft 5 more powerful and achieving a better stirring effect on the materials in the mixing tank. Preferably, the transmission ratio between the sun gear 403 and the planetary gears 401 is 2:1.

[0048] See Figure 5 and Figure 6 Furthermore, the coupling 7 includes an upper coupling end 701 and a lower coupling end 702. The upper coupling end 701 is connected to the lower coupling end 702 via a connecting block 703. The free end of the upper coupling end 701 is connected to the rotating shaft of the drive motor 2. The free end of the lower coupling end 702 is connected to the input shaft 406. The upper coupling end 701 and the lower coupling end 702 are hinged to the connecting block 703. The free end of the upper coupling end 701 is detachably connected to the rotating shaft of the drive motor 2, and the free end of the lower coupling end 702 is detachably connected to the input shaft 406. This facilitates the disassembly and replacement of the coupling 7.

[0049] In some embodiments, the small gear single-speed mixer further includes a gear compartment 8, which is disposed on the frame body 1, and a gear assembly 4 is disposed inside the gear compartment 8. A support frame 405 is connected to the top wall of the gear compartment 8, and an output shaft 407 is rotatably connected to the frame body 1, thereby more firmly fixing the gear assembly 4 inside the frame body 1.

[0050] See Figure 4 In some embodiments, a first gear 9 is provided on the output shaft 407, and a second gear 10 is provided on the rotating shaft 5, with the first gear 9 meshing with the second gear 10.

[0051] It should be noted that the first gear 9 and the second gear 10 are made of a composite of phenolic resin and cotton fiber. The tooth surface of the first gear 9 has a certain degree of adsorption and elasticity. After being soaked in lubricating oil, it can achieve a lubrication-free function and has a good effect on shock absorption and noise reduction. The core between the gears does not require lubrication, effectively reducing the generated noise, minimizing adverse effects on the surrounding environment, resulting in a low failure rate and simple maintenance. Preferably, the transmission ratio of the first gear 9 and the second gear 10 is 1.5:1.

[0052] In some embodiments, the small gear single-speed mixer further includes a first bearing 11, which is sleeved on the rotating shaft 5, and the outer peripheral wall of the first bearing 11 is connected to the frame body 1 through a first support plate 12.

[0053] Furthermore, the small gear single-speed mixer also includes a second bearing 13, which is sleeved on the rotating shaft 5, and the outer peripheral wall of the second bearing 13 is connected to the frame body 1 through the second support plate 14.

[0054] The first bearing 11 and the second bearing 13 are preferably self-aligning roller bearings with tapered bores, which improve the rotational accuracy and stability of the rotating shaft 5. This ensures the transmission quality of the gear assembly 4, extends its service life, and provides some resistance to the impact of vibration. The first support plate 12 and the second support plate 14 increase the robustness of the frame body 1.

[0055] See Figure 7 In some embodiments, the small gear single-speed mixer further includes a fixed ring 15, a rotating ring 16, and a spring assembly 17; the fixed ring 15 is disposed at the bottom of the frame body 1; the rotating ring 16 is sleeved on the rotating shaft 5; the spring assembly 17 is disposed on the rotating shaft 5 and is used to press the rotating ring 16 onto the fixed ring 15.

[0056] Furthermore, the spring assembly 17 includes a spring seat 1701, a deformation spring 1702, and a spring pressure plate 1703; the spring seat 1701 is mounted on the rotating shaft 5, and the deformation spring 1702 is disposed inside the spring seat 1701; the two ends of the deformation spring 1702 abut against the inner side wall of the spring seat 1701 and the spring pressure plate 1703 respectively; the bottom surface of the spring pressure plate 1703 abuts against the rotating ring 16 so that the rotating ring 16 fits against the fixed ring 15.

[0057] The spring pressure plate 1703 is slidably mounted on the spring seat 1701. When the rotating shaft 5 rotates, it drives the spring assembly 17 and the rotating ring 16 to rotate. The force generated by the deformation spring 1702 will push the spring pressure plate 1703 on the spring seat 1701 towards the fixed ring 15. The rotating ring 16 abuts against the fixed ring 15, thus sealing the rotating shaft 5 and preventing the stirred material from entering the frame body 1 and damaging or corroding the frame body 1.

[0058] Preferably, the small gear single-stage variable speed mixer also includes a controller, which is a Jinken JK-3T0055G. The controller works in conjunction with the frequency converter 3 to control the rotation speed of the transmission shaft.

[0059] Work process

[0060] First, the operator connects the device to the mixing tank and secures them. Then, the drive motor 2 is started. The shaft of the drive motor 2 rotates, causing the upper end 701 of the coupling to rotate, and the lower end 702 of the coupling to rotate synchronously, driving the input shaft 406 to rotate. The sun gear 403 rotates synchronously, causing the planetary gears 401 to rotate within the internal gear ring 404. The planetary carrier 402 rotates under force, and the output shaft 407 rotates synchronously. Then, the first gear 9 rotates under force, driving the second gear 10 to rotate. The rotating shaft 5 rotates within the frame body 1 under force. Subsequently, the impeller 6 on the rotating shaft 5 rotates within the mixing tank, shearing and mixing the materials in the tank. Then, the frequency converter 3 is controlled by the controller to control the rotational speed of the drive motor 2. Through the above steps, the rotational speed of the impeller 6 is controlled to achieve the required mixing speed for different material compositions.

[0061] This application can be installed vertically or horizontally, preferably with a rotating shaft 5 having a diameter of less than 45mm and a drive motor 2 having a power of less than 4kw. It is used for mixing liquids with liquids, solids with liquids, dissolving, and suspending to prevent sedimentation in a mixing tank with a volume of less than 10 cubic meters.

[0062] In the above embodiments, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0063] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "method," "specific method," or "some methods," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or method is included in at least one embodiment or method of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or method. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or methods. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or methods described in this specification, as well as the features of different embodiments or methods.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A small gear-driven single-speed mixer, characterized in that, include: The frame body has a drive motor mounted on it, and a frequency converter mounted on the drive motor. The frequency converter is electrically connected to the drive motor and is used to control the rotational speed of the drive motor shaft. The drive motor shaft is connected to a rotating shaft via a gear assembly, which is located inside the frame body. The rotating shaft is also located inside the frame body, with one end of the rotating shaft away from the frame body used to connect to an impeller.

2. The small gear-driven single-stage variable speed mixer according to claim 1, characterized in that, The gear assembly is connected to the shaft of the drive motor via a coupling.

3. The small gear-driven single-stage variable speed mixer according to claim 2, characterized in that, The gear assembly includes planetary gears, a planet carrier, a sun gear, an internal gear ring, and a support frame; There are multiple planetary gears, which are rotatably mounted on the planet carrier, and each of the multiple planetary gears meshes with the internal gear ring and the sun gear. An output shaft is provided at the end of the planet carrier away from the planet gears, and the output shaft is connected to the rotating shaft. An input shaft is provided at the end of the sun gear away from the planet carrier, and the input shaft is connected to the coupling. The outer peripheral wall of the internal gear ring is connected to the support frame, which is located inside the main frame body.

4. The small gear-driven single-stage variable speed mixer according to claim 3, characterized in that, The coupling includes an upper end and a lower end, and the upper end is connected to the lower end via a connecting block. The free end of the upper end of the coupling is connected to the shaft of the drive motor; The free end of the lower end of the coupling is connected to the input shaft.

5. The small gear-driven single-stage speed-changing mixer according to claim 4, characterized in that, It also includes a gear compartment, which is disposed on the main frame body and contains the gear assembly.

6. The small gear-driven single-stage variable speed mixer according to claim 5, characterized in that, A first gear is provided on the output shaft, and a second gear is provided on the rotating shaft, wherein the first gear meshes with the second gear.

7. The small gear-driven single-stage variable speed mixer according to claim 6, characterized in that, It also includes a first bearing, which is sleeved on the rotating shaft, and the outer peripheral wall of the first bearing is connected to the frame body through a first support plate.

8. The small gear-driven single-stage variable speed mixer according to claim 7, characterized in that, It also includes a second bearing, which is sleeved on the rotating shaft, and the outer peripheral wall of the second bearing is connected to the frame body through a second support plate.

9. The small gear-driven single-stage speed-changing mixer according to claim 8, characterized in that, It also includes a fixed ring, a rotating ring, and a spring assembly; The fixed ring is disposed at the bottom of the frame body; the rotating ring is sleeved on the rotating shaft; the spring assembly is disposed on the rotating shaft and is used to press the rotating ring tightly onto the fixed ring.

10. The small gear-driven single-stage variable speed mixer according to claim 9, characterized in that, The spring assembly includes a spring seat, a deformation spring, and a spring pressure plate; The spring seat is mounted on the rotating shaft, and a deformation spring is installed inside the spring seat; The two ends of the deformation spring abut against the inner side wall of the spring seat and the spring pressure plate, respectively; The bottom surface of the spring pressure plate abuts against the rotating ring so that the rotating ring fits against the fixed ring.

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