An internal mixer with a transmission shaft connecting member that is easy to replace

Abstract

The utility model relates to the technical field of internal mixer, disclose a kind of internal mixer of transmission shaft connecting piece convenient to replace, it includes internal mixing mechanism and the drive mechanism being set in the outside of internal mixing mechanism, transmission shaft connecting piece, transmission shaft connecting piece is detachably arranged between drive mechanism and internal mixing mechanism, one end of transmission shaft connecting piece is coaxially fixed connection with the output shaft of drive mechanism, and other end is coaxially fixed connection with the input shaft of internal mixing mechanism.The utility model by transmission shaft connecting piece is set in the outside of internal mixing mechanism, and improvement structure, traditional integral type or difficult to detach connecting piece is improved into the modular assembly type connecting piece consisting of internal gear, external gear, connecting key and fixed sheet, when connecting piece needs to be replaced, without moving speed reducer or disassembling internal mixing mechanism, only need to disassemble fixed sheet and connecting key of two sides in order, transmission shaft connecting piece can be axially removed, and replacement process is like replacing a standard part, fast and simple.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, and in particular to a mixing equipment that facilitates the replacement of transmission shaft connecting parts. Background Technology

[0002] Traditional drive shaft connectors are mostly integral drive shaft connectors, or although they are separate, the disassembly space is limited. When the connector is damaged due to wear or impact and needs to be replaced, maintenance personnel usually need to disassemble and move the heavy gearbox or the sealing components of the mixing mechanism to obtain sufficient operating space. This process is not only labor-intensive and time-consuming, but also leads to long-term downtime of the production line, resulting in economic losses. Utility Model Content

[0003] To solve the above-mentioned technical problems, the present invention provides a mixing device that facilitates the replacement of the transmission shaft connector. The transmission shaft connector is located outside the mixing mechanism, and the structure is improved. The traditional integral or difficult-to-disassemble connector is improved into a modular assembly connector composed of an internal gear, an external gear, a connecting key, and a fixing plate.

[0004] This utility model is achieved using the following technical solution: A mixing device with a replaceable drive shaft connector includes a mixing mechanism and a drive mechanism and a drive shaft connector disposed outside the mixing mechanism; the drive shaft connector is detachably disposed between the drive mechanism and the mixing mechanism; one end of the drive shaft connector is coaxially and fixedly connected to the output shaft of the drive mechanism, and the other end is coaxially and fixedly connected to the input shaft of the mixing mechanism.

[0005] As an optional embodiment of this utility model, the transmission shaft connector includes an internal gear and an external gear that mesh with each other, with the external gear coaxially disposed inside the internal gear; two external gears are provided, one of which is keyed to the input shaft of the mixing mechanism; the other external gear is keyed to the output shaft of the drive mechanism.

[0006] As an optional solution of this utility model, the input shaft of the mixing mechanism and the output shaft of the driving mechanism are provided with connecting shaft keyways, and the external gear is provided with a gear keyway corresponding to the connecting shaft keyway; after the external gear is installed on the internal gear, the connecting shaft keyway and the gear keyway are connected to form a connecting keyway, and a connecting key is provided in the connecting keyway.

[0007] As an optional solution of this utility model, the inner gear is further provided with fixing plates on both sides, which are bolted to the side wall of the inner gear and used to prevent the outer gear from moving axially; the fixing plates are annular, and the inner diameter of the fixing plates is smaller than the outer diameter of the outer gear.

[0008] As an optional solution of this utility model, the driving mechanism includes a drive motor and a reduction gearbox, the output shaft of the drive motor is connected to the input end of the reduction gearbox by a belt; a temperature vibration sensor is provided on the reduction gearbox, and the temperature vibration sensor is installed on the housing of the reduction gearbox; the temperature vibration sensor is electrically connected to the controller; the temperature vibration sensor is a triaxial temperature vibration sensor.

[0009] As an optional solution of this utility model, it also includes a controller installed on the mixing mechanism, wherein the controller panel is provided with a touch screen, control buttons and speaker electrically connected to the controller.

[0010] As an optional solution of this utility model, the mixing mechanism further includes a mixing box, rotors, and a gearbox; the mixing box is provided with two rotors for mixing materials, and the gearbox is located on one side of the mixing box, and the gearbox is used to drive the two rotors to ensure that the two rotors rotate synchronously.

[0011] As an optional embodiment of this invention, the mixing mechanism further includes an extended connecting part disposed on the side of the mixing box away from the gearbox and connected to the rotor drive, the extended connecting part including a connecting gear.

[0012] As an optional solution of this utility model, the mixing mechanism further includes an elastic buffer cavity for buffering the lateral vibration of the rotor. The elastic buffer cavity is respectively disposed on the outside of the mixing box at both ends of the rotor. The elastic buffer cavity includes a sealing cover for sealing the rotor, a fixing bolt, and a spring. The fixing bolt passes through the spring and the sealing cover in sequence and is bolted to the side of the mixing box.

[0013] As an optional solution of this utility model, the top of the mixing box is provided with a feeding port, and the feeding port is provided with a feeding cover.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention improves the structure by placing the drive shaft connector outside the mixing mechanism and transforming the traditional integral or difficult-to-disassemble connector into a modular assembly connector composed of internal gears, external gears, connecting keys, and fixing plates. When the connector needs replacement, there is no need to move the heavy gearbox or disassemble the mixing mechanism; simply remove the fixing plates and connecting keys on both sides in sequence to axially move the drive shaft connector out. The replacement process is as quick and easy as replacing a standard part. The improved belt connection between the motor and gearbox effectively absorbs the impact load during the mixing process through elastic deformation and slight slippage, preventing instantaneous high torque from directly impacting the drive shaft connector and causing brittle tooth breakage. The improved internal and external gear meshing structure has the ability to compensate for radial, axial, and angular deviations. This reduces the alignment accuracy requirements between the gearbox output shaft and the mixing mechanism input shaft during installation, avoiding failure problems such as uneven wear and increased vibration of the drive shaft connector caused by installation errors, and extending its service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this embodiment; Figure 2 This is a three-dimensional overall structural diagram of the rear view of this embodiment; Figure 3 This is a schematic diagram of the assembled three-dimensional structure of this embodiment; Figure 4 This is a top-view three-dimensional structural diagram of this embodiment; Figure 5 This is a top view of this embodiment; Figure 6 This is a bottom-view three-dimensional structural diagram of this embodiment.

[0016] Explanation of the reference numerals in the figure: 1. Internal mixing mechanism; 11. Internal mixing box; 12. Rotor; 13. Gearbox; 14. Extended connection part; 141. Connecting gear; 15. Elastic buffer chamber; 151. Sealing cover; 152. Fixing bolt; 153. Spring; 16. Feeding port; 17. Feeding cover; 18. Discharge port; 19. Discharge valve; 2. Drive mechanism; 21. Drive motor; 22. Gearbox; 23. Belt; 24. Temperature and vibration sensor; 3. Drive shaft connector; 31. External gear; 32. Internal gear; 33. Fixing plate; 34. Connecting shaft keyway; 35. Gear keyway; 36. Connecting key; 4. Controller. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0018] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0021] In one embodiment of this utility model, such as Figures 1 to 3 As shown, the mixing device provided in this embodiment facilitates the replacement of the drive shaft connector. The device includes a mixing mechanism 1, a drive mechanism 2 and a drive shaft connector 3 disposed outside the mixing mechanism 1. The drive shaft connector 3 is detachably disposed between the drive mechanism 2 and the mixing mechanism 1. One end of the drive shaft connector 3 is coaxially and fixedly connected to the output shaft of the drive mechanism 2, and the other end is coaxially and fixedly connected to the input shaft of the mixing mechanism 1.

[0022] In this embodiment, the transmission shaft connector 3 includes an external gear 31 and an internal gear 32 that are meshed together. Two external gears 31 are provided; one external gear 31 is keyed to the input shaft of the mixing mechanism 1; and the other external gear 31 is keyed to the output shaft of the drive mechanism 2.

[0023] like Figure 3 As shown, in this embodiment, the input shaft of the mixing mechanism 1 and the output shaft of the drive mechanism 2 are provided with connecting shaft keyways 34, and the external gear 31 is provided with a gear keyway 35 corresponding to the connecting shaft keyway 34. After the external gear 31 is installed onto the internal gear 32, the connecting shaft keyway 34 and the gear keyway 35 are connected to form a connecting keyway, and a connecting key 36 is provided in this connecting keyway. In this embodiment, the provision of a connecting key 36 corresponding to the shaft keyway 34 and the gear keyway 35 further improves the stability and detachability of the transmission shaft connector 3.

[0024] The internal gear 32 is also provided with fixing plates 33 on both sides, which are bolted to the side wall of the internal gear 32 and used to prevent the external gear 31 from moving axially; the fixing plates 33 are circular rings, and the inner diameter of the fixing plates 33 is smaller than the outer diameter of the external gear 31.

[0025] In this embodiment, when the transmission shaft connector 3 needs to be replaced, the inspector first removes the connecting bolts of the fixing plates 33 on both sides, and then separates the fixing plates 33 and the internal gear 32 axially outward. When the connecting key 36 is removed, the external gear 31 and the internal gear 32 can move axially, allowing the inspector to inspect and replace the damaged external gear 31 or internal gear 32. During the replacement process, it is not necessary to remove the sealing housing of the mixing mechanism 1, reducing the impact on the mixing mechanism 1 and facilitating replacement.

[0026] like Figure 1 As shown, in this embodiment, the drive mechanism 2 includes a drive motor 21 and a reduction gearbox 22, and the output shaft of the drive motor 21 is connected to the input end belt 23 of the reduction gearbox 22.

[0027] The belt 23 connection in this embodiment has a certain degree of elasticity and slippage characteristics. When the mixing mechanism 1 encounters a sudden load or jams during operation, the belt 23 can effectively buffer the violent impact through slight slippage, avoiding the instantaneous large torque from acting directly on the output shaft of the drive motor 21 and preventing the drive motor 21 from being overloaded and burned out.

[0028] like Figures 1 to 3As shown, a temperature vibration sensor 24 is installed on the gearbox 22, and the temperature vibration sensor 24 is mounted on the housing of the gearbox 22; the temperature vibration sensor 24 is electrically connected to the controller 4; the temperature vibration sensor 24 is a triaxial temperature vibration sensor, which can comprehensively monitor the vibration of the gearbox and detect problems early. In this embodiment, the temperature vibration sensor 24 can promptly capture abnormal signs inside the gearbox 22, such as initial pitting of gears and slight wear of bearings.

[0029] like Figure 4 As shown, this embodiment also includes a controller 4 disposed on the mixing mechanism 1. The controller 4 has a touch screen, control buttons, and a speaker electrically connected to its panel. The controller 4 is electrically connected to a temperature vibration sensor 24. In this embodiment, the temperature vibration sensor 24, through its connection with the controller 4, can realize functions such as data recording, trend analysis, and remote alarm.

[0030] like Figure 5 As shown, in this embodiment, the mixing mechanism 1 further includes a mixing box 11, rotors 12, and a gearbox 13; the mixing box 11 is provided with two rotors 12 for mixing materials, and the gearbox 13 is provided on one side of the mixing box 11. The gearbox 13 is used to drive the two rotors 12; the gears provided inside the gearbox 13 are connected to the two rotors 12 to ensure that the two rotors 12 rotate synchronously.

[0031] like Figures 5 to 6 As shown, in this embodiment, the mixing mechanism 1 further includes an extension connection part 14 disposed on the side of the mixing chamber 11 away from the gearbox and connected to the rotor 12 in a transmission manner. The extension connection part 14 includes a connecting gear 141. The extension connection part 14 can be connected in parallel to other mixing chambers 11, and multiple mixing chambers 11 can work simultaneously, improving the utilization rate of the drive mechanism 2.

[0032] like Figures 4 to 5 As shown, in this embodiment, the mixing mechanism 1 further includes an elastic buffer cavity 15 for buffering the lateral vibration of the rotor 12. The elastic buffer cavity 15 is respectively disposed on the outside of the mixing chamber 11 at both ends of the rotor 12. The elastic buffer cavity 15 includes a sealing cover 151 for sealing the rotor 12, a fixing bolt 152, and a spring 153. The fixing bolt 152 passes through the spring 153 and the sealing cover 151 in sequence and is bolted to the side of the mixing chamber 11.

[0033] In this embodiment, when the rotor 12 vibrates laterally, it pushes the sealing cover 151, thereby compressing or releasing the spring 153, thus absorbing and buffering the energy of the vibration, converting the hard impact into a flexible reciprocating motion, and improving the running stability of the rotor 12.

[0034] like Figures 5 to 6 As shown, in this embodiment, the top of the mixing chamber 11 is provided with a feeding port 16, and the feeding port 16 is provided with a feeding cover 17; the bottom of the mixing chamber 11 is provided with a discharge port 18, and the discharge port 18 is connected to a discharge valve 19. The feeding cover 17 is tightly closed during the mixing process, forming a seal with the mixing chamber 11 to prevent dust from flying and material from leaking out under high pressure shearing, ensuring a clean working environment and reducing raw material waste. In this embodiment, the discharge port 18 is located at the bottom of the mixing chamber 11 and connected to the discharge valve 19, so that the mixed rubber compound can flow out naturally and smoothly under its own gravity after the door is opened.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A mixing device for easy replacement of drive shaft connecting parts, characterized in that, It includes a mixing mechanism and a drive mechanism and a transmission shaft connector disposed outside the mixing mechanism; the transmission shaft connector is detachably disposed between the drive mechanism and the mixing mechanism; one end of the transmission shaft connector is coaxially and fixedly connected to the output shaft of the drive mechanism, and the other end is coaxially and fixedly connected to the input shaft of the mixing mechanism.

2. The mixing device for easy replacement of the drive shaft connector according to claim 1, characterized in that, The transmission shaft connector includes an internal gear and an external gear that mesh with each other, with the external gear coaxially disposed inside the internal gear; there are two external gears, one of which is keyed to the input shaft of the mixing mechanism; the other external gear is keyed to the output shaft of the drive mechanism.

3. The mixing device for easy replacement of the drive shaft connector according to claim 2, characterized in that, The input shaft of the mixing mechanism and the output shaft of the drive mechanism are provided with connecting shaft keyways, and the external gear is provided with a gear keyway corresponding to the connecting shaft keyway; after the external gear is installed on the internal gear, the connecting shaft keyway and the gear keyway are connected to form a connecting keyway, and a connecting key is provided in the connecting keyway.

4. The mixing device for easy replacement of the drive shaft connector according to claim 3, characterized in that, The internal gear is also provided with fixing plates on both sides, which are bolted to the side wall of the internal gear and used to prevent the external gear from moving axially; the fixing plates are circular rings, and the inner diameter of the fixing plates is smaller than the outer diameter of the external gear.

5. The mixing device for easy replacement of the drive shaft connector according to claim 1, characterized in that, The drive mechanism includes a drive motor and a reduction gearbox. The output shaft of the drive motor is connected to the input end of the reduction gearbox via a belt. A temperature vibration sensor is installed on the reduction gearbox housing. The temperature vibration sensor is electrically connected to the controller. The temperature vibration sensor is a triaxial temperature vibration sensor.

6. The mixing device for easy replacement of the drive shaft connector according to claim 1, characterized in that, It also includes a controller installed on the mixing mechanism, the controller panel of which is equipped with a touch screen, control buttons and a speaker electrically connected to the controller.

7. The mixing device for easy replacement of the drive shaft connector according to claim 1, characterized in that, The mixing mechanism includes a mixing chamber, rotors, and a gearbox; the mixing chamber is equipped with two rotors for mixing materials, and the gearbox is located on one side of the mixing chamber. The gearbox is used to drive the two rotors to ensure that the two rotors rotate synchronously.

8. The mixing device for easy replacement of the drive shaft connector according to claim 7, characterized in that, The mixing mechanism further includes an extended connection part located on the side of the mixing chamber away from the gearbox and connected to the rotor drive, the extended connection part including a connecting gear.

9. The mixing device for easy replacement of the drive shaft connector according to claim 7, characterized in that, The mixing mechanism also includes an elastic buffer chamber for buffering the lateral vibration of the rotor. The elastic buffer chamber is respectively located on the outside of the mixing box at both ends of the rotor. The elastic buffer chamber includes a sealing cover for sealing the rotor, a fixing bolt, and a spring. The fixing bolt passes through the spring and the sealing cover in sequence and is bolted to the side of the mixing box.

10. The mixing device for easy replacement of the drive shaft connector according to claim 7, characterized in that, The mixing chamber is provided with a feeding port on the top, and a feeding cover is provided on the feeding port.

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