Double-helix mixing and stirring barrel
By designing a double helix mixing mixing drum, using the spiral structure and transmission system of the inner and outer rotary blades, the problems of uneven stirring and material retention in the existing mixer are solved, and efficient material mixing and export are achieved.
Patent Information
- Application Number
- CN202421210091.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-30
AI Technical Summary
When mixing composite manhole cover raw materials in existing mixers, the problems of uneven mixing and material retention lead to waste of materials and difficulty in cleaning.
A double helix mixing drum is designed, adopting a spiral structure of internal rotation blades and external rotation blades. The drive shaft drives the rotation of the mandrel, upper sleeve and lower sleeves to realize the synchronous rotation of the internal and external rotation blades, and fully mix the materials. , and push the mixed material to the discharge port through the scraper.
It effectively improves the efficiency of material mixing and stirring, ensures that the material is fully exported, avoids material retention and waste, and simplifies the cleaning process.
Smart Images
Figure CN222494836U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a double-helix mixing drum. Background Art
[0002] A manhole cover is a cover used to cover roads or deep wells and openings to prevent people or objects from falling. It is generally made of metal, high-strength fiber, cement concrete or resin. However, for use needs, it is necessary to select the corresponding manhole cover according to the manhole cover's strength, durability, corrosion resistance and other conditions. In some complex environments, some composite manhole covers are selected to meet the requirements. However, the production of this type of composite manhole cover requires mixing and stirring various materials at the raw material stage, while conventional mixers have low stirring efficiency. The stirring method using a single spiral blade is prone to incomplete stirring of the material below. At the same time, it is not easy to take out the stirred material, and it is easy for the material to be retained inside the mixer, resulting in material waste and difficulty in cleaning the inside of the mixer. Utility Model Content
[0003] The utility model mainly solves the technical problems existing in the prior art, thereby providing a double-helix mixing and stirring drum which is convenient for material mixing and processing, effectively improves the material mixing and stirring efficiency, and ensures a full material outlet effect.
[0004] The utility model discloses a double-helix mixing and stirring drum, comprising a drum body and a drum cover detachably connected to the top of the drum body, a core shaft movably connected inside the drum body, an upper shaft sleeve and a lower shaft sleeve movably connected above and below the core shaft respectively, an inner rotating blade is connected around the center of the core shaft, a scraper is connected to the lower end of the core shaft located below the lower shaft sleeve, an outer rotating blade is connected to the center of the upper shaft sleeve and the lower shaft sleeve, a discharge port located in the center of the scraper is connected to the bottom of the drum body, a raw material port is connected to the top of the drum cover, an adjusting cabinet is connected to the center of the drum cover, a transmission shaft is movably connected inside the adjusting cabinet, a driving mechanism for driving the core shaft to rotate is connected to the top of the adjusting cabinet, the upper end of the core shaft is located in the adjusting cabinet and is connected to a first gear, the upper end of the upper shaft sleeve passes through the adjusting cabinet and is connected to a fourth gear, and the first gear and the fourth gear are respectively connected to the transmission shaft in terms of transmission.
[0005] Preferably, the adjusting cabinet is connected above the cylinder cover, the transmission shaft is movably connected to one side of the adjusting cabinet, and the second gear and the third gear are connected in the center of the transmission shaft, a first synchronous belt is sleeved between the second gear and the first gear, and a second synchronous belt is sleeved between the third gear and the fourth gear, so that the rotation of the first gear drives the second gear to rotate through the first synchronous belt, and then drives the transmission shaft to rotate synchronously, and the third gear at the lower end of the transmission shaft drives the fourth gear to rotate through the second synchronous belt, so that the core shaft in the first gear and the upper sleeve in the fourth gear have different rotation speeds and torque strengths.
[0006] Preferably, the upper end of the core shaft passes through the upper sleeve, the lower end of the core shaft passes through the lower sleeve and passes through the bottom of the cylinder, and a shaft seat movably connected to the core shaft is connected to the bottom of the cylinder, and the outside of the shaft seat is detachably connected to an end cover for covering the end of the core shaft, so that the lower end of the core shaft passes through the bottom of the cylinder and is movably connected to the shaft seat, and the lower end of the core shaft is covered and isolated by the end cover.
[0007] Preferably, bearings are connected between the core shaft and the upper sleeve, between the core shaft and the lower sleeve, and between the core shaft and the shaft seat, and sealing rings are provided at the connections between the core shaft and the cylinder cover and the cylinder body, so that the core shaft and the upper sleeve and the lower sleeve are movably connected through the bearings, and the connections between the core shaft and the cylinder cover and the cylinder body are sealed by the sealing ring to prevent the material inside the cylinder from being embedded between the core shaft and the cylinder body or falling out of the cylinder body.
[0008] Preferably, both the inner rotating blade and the outer rotating blade are spiral blades, the spiral direction of the outer rotating blade is opposite to that of the inner rotating blade, and a gap of more than 10 mm is provided between the outer rotating blade and the inner rotating blade, so that the inner rotating blade and the outer rotating blade have different spiral directions, and the gap between the two avoids the problem of contact and collision between the outer rotating blade and the inner rotating blade, thereby ensuring the safety of use of the outer rotating blade and the inner rotating blade and improving the mixing and stirring of the materials by the outer rotating blade and the inner rotating blade.
[0009] Preferably, the scraper is connected to the core shaft and is located above the lower sleeve, and an angle of 25-34 degrees is set between the scraper and the center line of the core shaft, so that the scraper can scrape the bottom of the cylinder to facilitate pushing the material to the discharge port through the scraper, and a gap of 1mm-3mm is set between the scraper and the bottom of the cylinder.
[0010] Preferably, the driving mechanism is arranged above the adjusting cabinet, and the driving mechanism includes a reduction gear box transmission connected to the core shaft, and a motor transmission connected to the reduction gear box, the motor provides rotational power, and the speed and torque of the power provided by the motor are adjusted by the reduction gear box to drive the core shaft to rotate.
[0011] Preferably, a bulk material port is provided on the top of the cylinder cover, the raw material port is located on the other side of the bulk material port, and a cover plate is hinged on the top of the raw material port, and the discharge port provided below the cylinder is located in the center of the scraper, and a flange is connected to the lower end of the discharge port, so that the manhole cover raw material can be introduced into the cylinder through the raw material port, and the raw material port is sealed by the cover plate, and the materials required to be mixed in the raw materials during the production of the manhole cover are introduced into the cylinder through the bulk material port, and the completely mixed materials inside the cylinder are discharged through the discharge port, and the external discharge pipe can also be connected through the setting of the flange to speed up the discharge of materials.
[0012] Preferably, a support foot is connected to the bottom of the cylinder, and the cylinder cover is connected to the cylinder by bolts. The cylinder is supported by the support foot, which makes it convenient for the user to place the device for transporting materials under the discharge port, and connect the cylinder cover to the cylinder by bolts, so that the user can disassemble the cylinder cover according to the situation to clean the inside of the cylinder.
[0013] The beneficial effect of the utility model is that since the center of the core shaft inside the cylinder is connected with an inner rotating blade, the upper sleeve and the lower sleeve are movably connected above and below the core shaft respectively, and the outer rotating blade is connected with the upper sleeve and the lower sleeve, and the core shaft and the upper sleeve are connected by a transmission shaft, the rotation of the core shaft can drive the inner rotating blade to rotate respectively, and the upper sleeve is driven to rotate by adjusting the transmission shaft, and the upper sleeve drives the outer rotating blade to rotate, so that the inside of the cylinder is fully mixed and stirred by the spiral rotation of the inner rotating blade and the outer rotating blade, so that the material in the center of the cylinder can rise or fall through the spiral of the inner rotating blade, and the material on the outside of the cylinder can be raised or lowered through the outer rotating blade. The corresponding spiral descends or rises, which facilitates the mixing and interlacing of the central and outer materials inside the cylinder, avoids the uneven mixing of the single stirring shaft of the conventional mixing device or the situation that some materials inside the device are not mixed, and effectively improves the mixing efficiency of the materials; and the core shaft is located at the lower end of the lower sleeve and is connected with a scraper, and an angle is set between the scraper and the center line of the core shaft, and the discharge port below the cylinder is located in the center of the scraper, so that the scraper can mix and stir the materials at the bottom of the cylinder, and after the mixing is completed, the scraper is used to push the materials to the discharge port, effectively improving the effect of material discharge through the discharge port and avoiding the possibility of material retention inside the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0015] Figure 1 This is a schematic diagram of the overall structure of a double-helix mixing drum of the utility model;
[0016] Figure 2 The utility model is a structural schematic diagram of a regulating cabinet in a double-helix mixing drum. DETAILED DESCRIPTION
[0017] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.
[0018] like Figure 1 and Figure 2 The double-helix mixing drum shown in the figure comprises a drum body 1 and a drum cover 11 detachably connected to the top of the drum body 1, wherein a core shaft 5 is movably connected inside the drum body 1, and an upper sleeve 61 and a lower sleeve 62 are movably connected to the top and bottom of the core shaft 5, respectively, an inner rotating blade 51 is connected around the center of the core shaft 5, and a scraper 52 is connected to the lower end of the core shaft 5 below the lower sleeve 62, and an outer rotating blade 6 is connected to the center of the upper sleeve 61 and the lower sleeve 62, and a central portion of the scraper 52 is connected to the center of the scraper 52. The discharge port 12 is connected to the top of the barrel cover 11 with a raw material port 112, the center of the barrel cover 11 is connected to an adjusting cabinet 3, the inside of the adjusting cabinet 3 is movably connected with a transmission shaft 4, the top of the adjusting cabinet 3 is connected with a driving mechanism (not marked) for driving the core shaft 5 to rotate, the upper end of the core shaft 5 is located in the adjusting cabinet 3 and is connected to a first gear 31, the upper end of the upper sleeve 61 passes through the adjusting cabinet 3 and is connected to a fourth gear 32, the first gear 31 and the fourth gear 32 are respectively connected to the transmission shaft 4 in terms of transmission.
[0019] The regulating cabinet 3 is connected above the cylinder cover 11, the transmission shaft 4 is movably connected to one side of the regulating cabinet 3, and the center of the transmission shaft 4 is connected with a second gear 41 and a third gear 42, a first synchronous belt 33 is sleeved between the second gear 41 and the first gear 31, and a second synchronous belt 34 is sleeved between the third gear 42 and the fourth gear 32, so that the rotation of the first gear 31 drives the second gear 41 to rotate through the first synchronous belt 33, and then drives the transmission shaft 4 to rotate synchronously, and the third gear 42 at the lower end of the transmission shaft 4 drives the fourth gear 32 to rotate through the second synchronous belt 34, so that the core shaft 5 in the first gear 31 and the upper sleeve 61 in the fourth gear 32 have different rotation speeds and torque strengths.
[0020] The upper end of the core shaft 5 passes through the upper sleeve 61, and the lower end of the core shaft 5 passes through the lower sleeve 62 and passes through the bottom of the cylinder 1, and a shaft seat 13 movably connected to the core shaft 5 is connected below the cylinder 1, and an end cover 131 for covering the end of the core shaft 5 is detachably connected to the outside of the shaft seat 13, so that the lower end of the core shaft 5 passes through the bottom of the cylinder 1 and is movably connected to the shaft seat 13, and the lower end of the core shaft 5 is covered and isolated by the end cover 131.
[0021] Bearings 7 are connected between the core shaft 5 and the upper sleeve 61, between the core shaft 5 and the lower sleeve 62, and between the core shaft 5 and the shaft seat 13. Sealing rings 8 are provided at the connections between the core shaft 5 and the cylinder cover 11 and the cylinder body 1, so that the core shaft 5 and the upper sleeve 61 and the lower sleeve 62 are movably connected through the bearings 7, and the connections between the core shaft 5 and the cylinder cover 11 and the cylinder body 1 are sealed by the sealing ring 8 to prevent the material inside the cylinder body 1 from being embedded between the core shaft 5 and the cylinder body 1 or falling out of the cylinder body 1.
[0022] The inner rotating blade 51 and the outer rotating blade 6 are both spiral blades, and the spiral direction of the outer rotating blade 6 is opposite to that of the inner rotating blade 51. A gap of more than 10 mm is provided between the outer rotating blade 6 and the inner rotating blade 51, so that the inner rotating blade 51 and the outer rotating blade 6 have different spiral directions, and the problem of contact and collision between the outer rotating blade 6 and the inner rotating blade 62 is avoided through the gap between the two, thereby ensuring the safety of the use of the outer rotating blade 6 and the inner rotating blade 51 and improving the mixing and stirring of the materials by the outer rotating blade 6 and the inner rotating blade 51.
[0023] The scraper 52 is connected to the core shaft 5 and is located above the lower sleeve 62, and an angle of 25-34 degrees is set between the scraper 52 and the center line of the core shaft 5, so that the scraper 52 can scrape the bottom of the cylinder 1, so that the material can be pushed to the discharge port 12 through the scraper 52, and a gap of 1mm-3mm is set between the scraper 52 and the bottom of the cylinder 1.
[0024] The driving mechanism is arranged above the adjustment cabinet 3, and the driving mechanism includes a reduction box 21 transmission-connected to the core shaft 5, and a motor 2 transmission-connected to the reduction box 21. The motor 2 provides rotational power, and the speed and torque of the power provided by the motor 2 are adjusted by the reduction box 21.
[0025] A bulk material port 111 is provided on the top of the cylinder cover 11, the raw material port 112 is located on the other side of the bulk material port 111, and a cover plate 113 is hinged on the top of the raw material port 112. The discharge port 12 provided below the cylinder body 1 is located in the center of the scraper 52, and a flange 121 is connected to the lower end of the discharge port 12, so that the manhole cover raw material can be introduced into the cylinder body 1 through the raw material port 112, and the raw material port is sealed by the cover plate 113, and the materials required to be mixed in the raw materials during the production of the manhole cover are introduced into the cylinder body 1 through the bulk material port 111, and the completely mixed materials in the cylinder body 1 are discharged through the discharge port 12, and the external discharge pipe can also be connected through the setting of the flange 121 to speed up the discharge of materials.
[0026] A support foot 14 is connected to the bottom of the cylinder 1, and the cylinder cover 11 is connected to the cylinder 1 by bolts. The cylinder 1 is supported by the support foot 14, which is convenient for the user to place the device for transporting materials under the discharge port 12, and the cylinder cover 11 is connected to the cylinder 1 by bolts, so that the user can disassemble the cylinder cover 11 according to the situation to clean the inside of the cylinder 1.
[0027] The double-helix mixing drum introduces the raw materials of the manhole cover into the cylinder body 1 through the raw material port 112, and seals the raw material port 112 through the cover plate 113, and the composite material of the manhole cover is added to the cylinder body 1 through the bulk material port 111 in a timely manner; then the motor 2 drives the core shaft 5 to rotate by adjusting the speed and torque of the reduction box 21, so that the core shaft 5 drives the inner rotating blade 51 and the scraper 52 to mix inside the cylinder body 1, and at the same time, the first gear 31 above the core shaft 5 drives the second gear on the upper end of the transmission shaft 4 through the first synchronous belt 33 The wheel 41 rotates, and the fourth gear 32 on the outside of the upper sleeve 61 is driven to rotate through the third gear 42 at the lower end of the transmission shaft 4 and the transmission of the second synchronous belt 34 to drive the upper sleeve 61 to rotate, thereby driving the outer rotating blade 6 in the center of the upper sleeve 61 and the lower sleeve 62 to rotate, so that the inner rotating blade 51 and the outer rotating blade 6 mix and stir the material inside the cylinder 1; when the material mixing is completed, the material inside the cylinder 1 is discharged through the discharge port 12, and the material below the cylinder 1 is fully pushed to the discharge port 12 for discharge through the rotation of the scraper 52.
[0028] The beneficial effect of the utility model is that since the center of the core shaft inside the cylinder is connected with an inner rotating blade, the upper sleeve and the lower sleeve are movably connected above and below the core shaft respectively, and the outer rotating blade is connected with the upper sleeve and the lower sleeve, and the core shaft and the upper sleeve are connected by a transmission shaft, the rotation of the core shaft can drive the inner rotating blade to rotate respectively, and the upper sleeve is driven to rotate by adjusting the transmission shaft, and the upper sleeve drives the outer rotating blade to rotate, so that the inside of the cylinder is fully mixed and stirred by the spiral rotation of the inner rotating blade and the outer rotating blade, so that the material in the center of the cylinder can rise or fall through the spiral of the inner rotating blade, and the material on the outside of the cylinder can be raised or lowered through the outer rotating blade. The corresponding spiral descends or rises, which facilitates the mixing and interlacing of the central and outer materials inside the cylinder, avoids the uneven mixing of the single stirring shaft of the conventional mixing device or the situation that some materials inside the device are not mixed, and effectively improves the mixing efficiency of the materials; and the core shaft is located at the lower end of the lower sleeve and is connected with a scraper, and an angle is set between the scraper and the center line of the core shaft, and the discharge port below the cylinder is located in the center of the scraper, so that the scraper can mix and stir the materials at the bottom of the cylinder, and after the mixing is completed, the scraper is used to push the materials to the discharge port, effectively improving the effect of material discharge through the discharge port and avoiding the possibility of material retention inside the cylinder.
[0029] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.
Claims
1. A double-helix mixing drum, characterized in that: The invention comprises a cylinder body and a cylinder cover detachably connected to the top of the cylinder body, the cylinder body is movably connected with a core shaft, the top and bottom of the core shaft are respectively movably connected with an upper sleeve and a lower sleeve, the center of the core shaft is surrounded by an inner rotating blade, the lower end of the core shaft is located below the lower sleeve and is connected with a scraper, the upper sleeve and the lower sleeve are centrally connected with outer rotating blades, a discharge port located in the center of the scraper is connected at the bottom of the cylinder body, a raw material port is connected at the top of the cylinder cover, the center of the cylinder cover is connected with an adjusting cabinet, a transmission shaft is movably connected inside the adjusting cabinet, a driving mechanism for driving the core shaft to rotate is connected above the adjusting cabinet, the upper end of the core shaft is located in the adjusting cabinet and is connected with a first gear, the upper end of the upper sleeve passes through the adjusting cabinet and is connected with a fourth gear, the first gear and the fourth gear are respectively connected with the transmission shaft in transmission.
2. A double-helix mixing drum according to claim 1, characterized in that: The regulating cabinet is connected above the cylinder cover, the transmission shaft is movably connected to one side of the regulating cabinet, and the center of the transmission shaft is connected with a second gear and a third gear, a first synchronous belt is sleeved between the second gear and the first gear, and a second synchronous belt is sleeved between the third gear and the fourth gear.
3. A double-helix mixing drum according to claim 2, characterized in that: The upper end of the core shaft passes through the upper sleeve, the lower end of the core shaft passes through the lower sleeve and passes through the bottom of the cylinder, and a shaft seat movably connected to the core shaft is connected below the cylinder, and an end cover for covering the end of the core shaft is detachably connected to the outside of the shaft seat.
4. A double-helix mixing drum according to claim 3, characterized in that: Bearings are connected between the core shaft and the upper sleeve, between the core shaft and the lower sleeve, and between the core shaft and the shaft seat. Sealing rings are arranged at the connection between the core shaft and the cylinder cover and the cylinder body.
5. The double-helix mixing drum according to claim 1, characterized in that: The inner rotating blade and the outer rotating blade are both spiral blades, the spiral direction of the outer rotating blade is opposite to the spiral direction of the inner rotating blade, and a gap of more than 10 mm is set between the outer rotating blade and the inner rotating blade.
6. The double-helix mixing drum according to claim 1, characterized in that: The scraper is connected to the core shaft and is located above the lower sleeve, and an angle of 25-34 degrees is set between the scraper and the center line of the core shaft.
7. A double-helix mixing drum according to any one of claims 1 to 6, characterized in that: The driving mechanism is arranged above the regulating cabinet, and the driving mechanism comprises a reduction box drivingly connected to the core shaft, and a motor drivingly connected to the reduction box.
8. The double-helix mixing drum according to claim 7, characterized in that: A bulk material port is arranged above the cylinder cover, the raw material port is located on the other side of the bulk material port, and a cover plate is hinged above the raw material port. A discharge port is arranged below the cylinder body and is located in the center of the scraper, and a flange is connected to the lower end of the discharge port.
9. A double-helix mixing drum according to claim 8, characterized in that: A support foot is connected to the bottom of the cylinder, and the cylinder cover is connected to the cylinder through bolts.