Peristaltic pump reduction gearbox

Abstract

The peristaltic pump reduction gearbox comprises a driving piece, a shell, a reduction transmission assembly and a fixed output frame, the driving piece comprises a driving shaft, the shell is provided with a containing cavity and a first installation hole, the containing cavity is provided with a gear ring, the reduction transmission assembly comprises a driving gear and a driven gear, and the driven gear is in meshing transmission with the driving gear and the gear ring. The driving gear is provided with a second mounting hole and fixedly connected with the driving shaft, the fixed output frame and the driven gear move synchronously, the fixed output frame is provided with a third mounting hole, and the driving shaft sequentially penetrates through the first mounting hole and the second mounting hole and then is embedded in the third mounting hole. The driven gear is meshed with the driving gear and the gear ring to form meshing transmission, the number of teeth of the driven gear is larger than that of teeth of the driving gear, and the speed reduction effect and the operation stability are effectively improved. The driving shaft penetrates through the second mounting hole and then is embedded in the third mounting hole, the fixed output frame is positioned through the driving shaft, and the output accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of reducing the speed of the box especially relates to a peristaltic pump reduction gearbox. BACKGROUND

[0002] The peristaltic pump is a fluid conveying device composed of a driver, a roller assembly and a hose, the driver drives the roller assembly to alternately pressurize and release the hose, thereby realizing the delivery of the fluid by the hose, since the fluid only contacts the hose, the peristaltic pump has the advantages of no pollution and good sealing performance.

[0003] The driver is usually composed of a driving motor and a transmission device, the transmission device drives the roller device to rotate and extrudes the hose, so that the hose generates negative pressure to pump out the fluid, however, the existing transmission device has the problems of unstable operation and low output accuracy. SUMMARY

[0004] The utility model provides a peristaltic pump reduction gearbox to more exactly solve the above-mentioned problems of unstable operation and low output accuracy.

[0005] The utility model is realized through the following technical schemes:

[0006] The utility model provides a peristaltic pump reduction gearbox, drive piece, the drive piece includes drive shaft, the shell is equipped with containing chamber and first installation hole, the inner wall of containing chamber is equipped with gear ring, the shell is fixedly connected with drive piece, and drive shaft penetrates first installation hole, speed reduction transmission subassembly, speed reduction transmission subassembly is equipped in containing chamber, speed reduction transmission subassembly includes driving gear and a plurality of driven gears, driving gear is equipped with second installation hole, drive shaft penetrates second installation hole, and is fixedly connected with driving gear, the number of teeth of driven gear is greater than the number of teeth of driving gear, any driven gear is distributed between driving gear and gear ring, any driven gear one end engages driving gear, and forms meshing drive with driving gear, the other end engages gear ring, and forms meshing drive with gear ring, fixed output frame, fixed output frame is installed above speed reduction transmission subassembly, and with driven gear synchronous motion, fixed output frame is equipped with third installation hole, drive shaft is embedded in third installation hole.

[0007] Further, the drive shaft drives the driving gear to rotate, the driving gear drives the driven gears to rotate, and the rotational speed of the driven gears is less than that of the driving gear.

[0008] Further, any of the driven gears is provided with a fourth installation hole.

[0009] Further, the fixed output frame comprises a main body, the main body comprises a first plane and a second plane, the first plane is provided with a plurality of fixed columns, the number and position of the fixed columns correspond to the number and position of the fourth mounting holes.

[0010] Further, the fixed columns are embedded in the fourth mounting holes to synchronize the movement of the driven gears with the fixed output frame.

[0011] Further, the second plane is provided with an output column, and the third mounting hole penetrates the main body and the output column.

[0012] Further, the driving shaft is embedded in the third mounting hole and forms a sliding connection with the fixed output frame, and is used to provide central positioning for the movement of the fixed output frame.

[0013] Further, the output column has a multi-angled structure and is used to output torque.

[0014] Further, any of the driven gears is provided with a plurality of grooves, the grooves are arranged around the fourth mounting holes, and the grooves are used to reduce the friction between the driven gears and the first plane.

[0015] Further, the first plane is also provided with a plurality of heat dissipation grooves, and the heat dissipation grooves are used to dissipate heat for the speed reduction transmission assembly.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model discloses a plurality of driven gears are arranged between the driving gear and the gear ring, any driven gear is meshed with the driving gear and the gear ring to form meshing transmission, and the number of teeth of the driven gear is greater than the number of teeth of the driving gear, which effectively improves the speed reduction effect and the stability of the speed reduction box. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the utility model will be further described below in combination with the drawings and embodiments, and the drawings in the following description are only part of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the premise of the drawings:

[0019] Figure 1The explosion schematic view of the peristaltic pump comprising the reduction gearbox in one embodiment of the utility model;

[0020] Figure 2 The top view schematic view of the peristaltic pump comprising the reduction gearbox in one embodiment of the utility model;

[0021] Figure 3 The utility model discloses Figure 2 The sectional view schematic view of A-A in one embodiment of the utility model;

[0022] Figure 4 The three-dimensional view of a peristaltic pump reduction gearbox not showing the fixed output frame in one embodiment of the utility model;

[0023] Figure 5 The explosion schematic view of a peristaltic pump reduction gearbox in one embodiment of the utility model;

[0024] Figure 6 The three-dimensional view of the fixed output frame in one embodiment of the utility model;

[0025] Figure 7 The three-dimensional view of the fixed output frame from another angle in one embodiment of the utility model.

[0026] Label explanation: 10, drive piece;11, drive shaft;20, shell;21, containing cavity;22, gear ring;23, first mounting hole;30, reduction transmission assembly;31, driving gear;32, driven gear;311, second mounting hole;321, fourth mounting hole;322, recess;40, fixed output frame;41, main body;42, first plane;43, second plane;44, third mounting hole;421, fixed column;422, heat dissipation groove;431, output column;432, mounting groove. DETAILED DESCRIPTION

[0027] In order to make the utility model purposes, technical scheme and advantages more clearly, following combining with the drawings and embodiment, the utility model is further detailedly explained. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0028] Please refer to Figures 1-7The utility model provides a peristaltic pump reduction gearbox, including drive part 10, drive part 10 includes drive shaft 11, shell 20 is equipped with containing cavity 21 and first mounting hole 23, shell 20 is fixedly connected with drive part 10, and drive shaft 11 is through first mounting hole 23, reduction drive assembly 30, reduction drive assembly 30 is located in containing cavity 21, and reduction drive assembly 30 includes driving gear 31 and a plurality of driven gear 32, and driven gear 32 is engaged transmission with driving gear 31, and driving gear 31 is equipped with second mounting hole 311, and drive shaft 11 is through second mounting hole 311, and is fixedly connected with driving gear 31, fixed output frame 40, fixed output frame 40 is installed in the top of reduction drive assembly 30, and with driven gear 32 synchronous movement, and fixed output frame 40 is equipped with third mounting hole 44, and drive shaft 11 is embedded in third mounting hole 44.

[0029] The utility model provides a peristaltic pump reduction gearbox, including driving part 10, shell 20, reduction drive assembly 30 and fixed output frame 40, driving part 10 includes driving shaft 11, and can make driving shaft 11 rotate, shell 20 is equipped with containing cavity 21, and the inner wall of containing cavity 21 is equipped with gear ring 22, and shell 20 bottom is also equipped with first mounting hole 23, and shell 20 is fixedly connected with driving part 10, and driving shaft 11 penetrates first mounting hole 23, reduction drive assembly 30 is located in containing cavity 21, and reduction drive assembly 30 includes driving gear 31 and a plurality of driven gear 32, and driving gear 31 is equipped with second mounting hole 311, and driving shaft 11 penetrates second mounting hole 311, and is fixedly connected with driving gear 31, any driven gear 32 is distributed between driving gear 31 and gear ring 22, and is engaged with driving gear 31 and gear ring 22 respectively and forms meshing drive, and driving shaft 11 rotates driving gear 31 rotation, and driving gear 31 drives driven gear 32 rotation, effectively improves operating stability, and the number of teeth of driven gear 32 is greater than the number of teeth of driving gear 31, and the rotational speed of driven gear 32 is less than the rotational speed of driving gear 31, effectively improves the effect of deceleration, and fixed output frame 40 is installed above reduction drive assembly 30, and any driven gear 32 is equipped with fourth mounting hole 321, and fixed output frame 40 includes main part 41, and main part 41 includes first plane 42 and second plane 43, and first plane 42 is equipped with a plurality of fixed columns 421, and the number and position of fixed column 421 correspond with the number and position of fourth mounting hole 321, and fixed column 421 is embedded in fourth mounting hole 321 to make driven gear 32 drive fixed output frame 40 synchronous movement, and output column 431 is arranged on second plane 43, and output column 431 is multiple angular structure, and is used to output torque, and third mounting hole 44 leads through main part 41 and output column 431, and driving shaft 11 is embedded in third mounting hole 44, and forms sliding connection with fixed output frame 40, and realizes further positioning to fixed output frame 40 through driving shaft 11, and fixed output frame 40 is not easy to shake friction, and synchronous movement with driven gear 32 is more accurate, and then improves output accuracy, improves life and reduces noise.

[0030] The utility model provides a drive shaft 11 is embedded in the third mounting hole 44 after penetrating the second mounting hole 311, and the drive shaft 11 is fixedly connected with the driving gear 31 and is slidably connected with the fixed output frame 40, the fixed output frame 40 realizes the synchronous movement with the driven gear 32 through the fixed column 421, and the fixed output frame 40 is further positioned through the drive shaft 11, the fixed output frame 40 is not easy to shake and rub, and the synchronous movement with the driven gear 32 is more accurate, thereby improving the output accuracy, prolonging the service life and reducing the noise.

[0031] Please refer to Figures 1-3 The housing 20 is fixedly connected with the driving part 10, and the drive shaft 11 penetrates the first mounting hole 23.

[0032] In specific implementation, the driving part 10 can adopt a driving motor, the drive shaft 11 is an output shaft of the driving motor, and the drive shaft 11 rotates when the driving motor is powered on; the housing 20 is internally provided with the accommodating cavity 21, and the accommodating cavity 21 is provided with the gear ring 22 and fills the entire inner wall of the accommodating cavity 21; the housing 20 is fixedly connected with the driving part 10, and the first mounting hole 23 is located at the bottom of the housing 20 and on the axis of the drive shaft 11, and the drive shaft 11 penetrates the first mounting hole 23.

[0033] Please refer to Figures 3-5 The speed reduction transmission assembly 30 is arranged in the accommodating cavity 21, and the speed reduction transmission assembly 30 comprises the driving gear 31 and a plurality of driven gears 32; the driving gear 31 is provided with the second mounting hole 311, and the drive shaft 11 penetrates the second mounting hole 311 and is fixedly connected with the driving gear 31; any driven gear 32 is distributed between the driving gear 31 and the gear ring 22, and is engaged with the driving gear 31 and the gear ring 22 to form meshing transmission; the drive shaft 11 rotates to drive the driving gear 31 to rotate, and the driving gear 31 drives the driven gear 32 to rotate.

[0034] In specific implementation: the speed reduction transmission assembly 30 is arranged in the accommodating cavity 21, the speed reduction transmission assembly 30 includes a driving gear 31 and a plurality of driven gears 32, in a specific embodiment, including a driving gear 31 and three driven gears 32; the driven gears 32 are arranged around the driving gear 31, and the driving gear 31 is located in the center of the driven gears 32; the driving gear 31 is provided with a second mounting hole 311, and the second mounting hole 311 is located on the axis of the driving shaft 11, the driving shaft 11 penetrates the second mounting hole 311, and is fixedly connected with the driving gear 31, and the rotation of the driving shaft 11 drives the rotation of the driving gear 31; any driven gear 32 is distributed between the driving gear 31 and the gear ring 22, one end of any driven gear 32 meshes with the driving gear 31 and forms meshing transmission with the driving gear 31, the other end meshes with the gear ring 22 and forms meshing transmission with the gear ring 22, and the rotation of the driving gear 31 drives the rotation of the driven gear 32, which is conducive to improving the stability of operation.

[0035] Please refer to Figures 3-5 The number of teeth of the driven gear 32 is greater than the number of teeth of the driving gear 31, and the rotation speed of the driven gear 32 is less than the rotation speed of the driving gear 31.

[0036] In specific implementation: the rotation speed ratio of the two meshing gears is inversely proportional to the tooth number ratio, usually the rotation speed of the driving shaft 11 is faster, the driving shaft 11 is fixedly connected with the driving gear 31, that is, the rotation speed of the driving gear 31 is faster, however, the peristaltic pump needs lower rotation speed to realize stable and safe transportation of fluid, that is, the rotation speed of the driven gear 32 is required to be lower, therefore, the number of teeth of the driven gear 32 can be increased, and the number of teeth of the driven gear 32 is greater than the number of teeth of the driving gear 31, that is, the tooth number ratio of the driven gear 32 and the driving gear 31 is increased, so as to reduce the rotation speed of the driven gear 32, and the rotation speed of the driven gear 32 is less than the rotation speed of the driving gear 31, in a specific embodiment, the tooth number ratio of the driven gear 32 and the driving gear 31 is set according to the required speed of the peristaltic pump, and the diameter and the number of teeth of the gear ring 22 of the accommodating cavity 21 of the shell 20 are also changed correspondingly, effectively improving the speed reduction effect of the speed reduction box and the stability of operation.

[0037] Please refer to Figures 3-7 The fixed output frame 40 is installed above the speed reduction transmission assembly 30, any driven gear 32 is provided with a fourth mounting hole 321, the fixed output frame 40 includes a main body 41, the main body 41 includes a first plane 42 and a second plane 43, the first plane 42 is provided with a plurality of fixed columns 421, the number and position of the fixed columns 421 correspond to the number and position of the fourth mounting holes 321, the fixed columns 421 are embedded in the fourth mounting holes 321, so that the driven gear 32 drives the fixed output frame 40 to move synchronously.

[0038] In specific implementation: the fixed output frame 40 is installed above the speed reduction transmission assembly 30, the diameter of the fixed output frame 40 is smaller than the diameter of the gear ring 22 of the accommodating cavity 21, any driven gear 32 is provided with a fourth mounting hole 321, the fixed output frame 40 comprises a main body 41, the main body 41 comprises a first plane 42 and a second plane 43, the first plane 42 is provided with a plurality of fixed columns 421 and faces the speed reduction transmission assembly 30, the diameter, number and position of the fixed columns 421 correspond to the diameter, number and position of the fourth mounting hole 321 respectively, the fixed columns 421 are embedded in the fourth mounting hole 321, the connection of the fixed output frame 40 and the driven gear 32 is realized, when the driven gear 32 rotates, the driven gear 32 will drive the fixed output frame 40 to rotate synchronously, and the rotating direction and speed of the fixed output frame 40 are consistent with the rotating direction and speed of the driven gear 32.

[0039] Please refer to Figures 3-7 , the second plane 43 is provided with an output column 431, the output column 431 has a multi-angled structure and is used for outputting torque, the third mounting hole 44 leads through the main body 41 and the output column 431, and the driving shaft 11 is embedded in the third mounting hole 44 and forms a sliding connection with the fixed output frame 40.

[0040] In specific implementation: the second plane 43 is provided with an output column 431 and a mounting groove 432, the mounting groove 432 is arranged around the output column 431, the output column 431 has a multi-angled structure, which is conducive to stable output connection, the output column 431 is used for outputting torque, in an embodiment, the output column 431 faces the roller assembly of the peristaltic pump, the roller assembly is arranged in the mounting groove 432 and is fixedly connected with the output column 431, and the output column 431 outputs torque to drive the roller assembly to rotate; the third mounting hole 44 leads through the main body 41 and the output column 431, and the driving shaft 11 is embedded in the third mounting hole 44 and forms a sliding connection with the fixed output frame 40; the driving shaft 11 is embedded in the third mounting hole 44 after penetrating through the second mounting hole 311, the driving shaft 11 is fixedly connected with the driving gear 31 and is in sliding connection with the fixed output frame 40, the fixed output frame 40 realizes synchronous movement with the driven gear 32 through the fixed column 421, and further positioning of the fixed output frame 40 is realized through the driving shaft 11, the fixed output frame 40 is not easy to shake and rub, the synchronous movement with the driven gear 32 is more accurate, and thus the output accuracy, service life and noise are improved.

[0041] Please refer to Figures 4-6 , any driven gear 32 is provided with a plurality of grooves 322, the grooves 322 are arranged around the fourth mounting hole 321, and the grooves 322 are used for reducing the friction between the driven gear 32 and the first plane 42; the first plane 42 is also provided with a plurality of heat dissipation grooves 422, and the heat dissipation grooves 422 are used for heat dissipation of the speed reduction transmission assembly 30.

[0042] In specific implementation: any of the driven gears 32 is provided with a plurality of grooves 322, the grooves 322 are arranged around the fourth mounting hole 321, the grooves 322 reduce the contact area of the driven gear 32 and the first plane 42, thereby reducing the friction between the driven gear 32 and the first plane 42, and facilitating to improve the service life of the speed reduction transmission assembly 30; the first plane 42 is also provided with a plurality of heat dissipation grooves 422, the heat dissipation grooves 422 are arranged towards the speed reduction transmission assembly 30, and the heat dissipation grooves 422 are used for heat dissipation of the speed reduction transmission assembly 30, and are beneficial to improve the service life of the speed reduction transmission assembly 30.

[0043] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent flow transformation using the content of the specification and drawings of the present application, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A peristaltic pump reduction gearbox characterized by, The utility model relates to a kind of reduction drive mechanism, including: Driving piece, the driving piece includes driving shaft; Shell, the shell is equipped with containing cavity and first mounting hole, the inner wall of the containing cavity is equipped with gear ring, the shell is fixedly connected with the driving piece, and the driving shaft penetrates the first mounting hole; Speed reduction transmission assembly, the speed reduction transmission assembly is located in the containing cavity, the speed reduction transmission assembly includes driving gear and multiple driven gears, the driving gear is equipped with second mounting hole, the driving shaft penetrates the second mounting hole, and is fixedly connected with the driving gear; The number of teeth of the driven gear is greater than the number of teeth of the driving gear, any driven gear is distributed between the driving gear and the gear ring, any driven gear one end engages the driving gear, and meshing transmission is formed with the driving gear, the other end engages the gear ring, and meshing transmission is formed with the gear ring; Fixed output frame, the fixed output frame is installed above the speed reduction transmission assembly, and is synchronous motion with the driven gear, the fixed output frame is equipped with third mounting hole, and the driving shaft is embedded in the third mounting hole.

2. A peristaltic pump reduction gearbox according to claim 1, wherein, The driving shaft drives the driving gear to rotate, the driving gear drives the driven gear to rotate, and the rotational speed of the driven gear is less than the rotational speed of the driving gear.

3. A peristaltic pump reduction gearbox according to claim 2, wherein, Any driven gear is equipped with fourth mounting hole.

4. The peristaltic pump reduction gearbox of claim 3, wherein, The fixed output frame includes main body, the main body includes first plane and second plane, the first plane is equipped with multiple fixed columns, and the number and position of the fixed column correspond to the number and position of the fourth mounting hole.

5. A peristaltic pump reduction gearbox according to claim 4, wherein, The fixed column is embedded in the fourth mounting hole, so that the driven gear drives the fixed output frame to move synchronously.

6. A peristaltic pump reduction gearbox according to claim 5, wherein, The second plane is equipped with output column, and the third mounting hole leads through the main body and the output column.

7. A peristaltic pump reduction gearbox according to claim 6, wherein, The driving shaft is embedded in the third mounting hole, and is slidably connected with the fixed output frame, and is used to provide central positioning for the movement of the fixed output frame.

8. A peristaltic pump reduction gearbox according to claim 7, wherein, The output column is in multi-angled structure, and is used to output torque.

9. The peristaltic pump reduction gearbox of claim 4, wherein, Any driven gear is equipped with multiple grooves, the groove is arranged around the fourth mounting hole, and the groove is used to reduce the friction between the driven gear and the first plane.

10. The peristaltic pump reduction gearbox of claim 4, wherein, The first plane is also equipped with multiple heat dissipation grooves, and the heat dissipation grooves are used to heat dissipation to the speed reduction transmission assembly.

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