Transmission structure and speed reducer
By combining a Hall effect magnetic sensor and a disk with a planetary gear reducer, the problem of precise opening monitoring and control of agricultural film greenhouse film rollers was solved, achieving high-precision film roller rotation control and reducing the cost of mechanical limit devices.
Patent Information
- Application Number
- CN202422592086.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-10-25
AI Technical Summary
Existing agricultural film greenhouse film rolling machines lack precise monitoring and control of film opening, and mechanical limit devices are costly and have low precision.
By combining a Hall effect magnetic sensor and a disk with a speed reduction device, real-time monitoring and high-precision control of the film winding machine opening can be achieved. The Hall effect magnetic sensor senses the disk rotation angle, and the planetary gear reducer reduces the speed to improve control accuracy.
It enables real-time monitoring and high-precision control of the film winding machine's opening position, reduces the cost of mechanical limit devices, and improves the control accuracy of the film winding machine's rotation number.
Smart Images
Figure CN223666906U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to agricultural machinery field, especially a kind of transmission structure and speed reducer. BACKGROUND
[0002] The existing agricultural film greenhouse uses the film winding device, and most of them lack the monitoring function of the opening of the film winding, and the control precision of the film winding output shaft of the film winding device is not high, and the highest precision can be controlled to 1 / 8 rotation number of turns;The existing film winding device uses mechanical structure for limiting control, and the limiting accuracy is low, the space is large, and the cost is high. SUMMARY
[0003] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.
[0004] In view of the above or the problems existing in the prior art, the utility model is proposed.
[0005] Therefore, the purpose of the utility model is to provide a transmission structure, which aims to solve the problems of real-time monitoring and control of the opening position of the film winding device, improve the precision of controlling the rotation number of the film winding device, and solve the problem of high cost of limiting function by mechanical structure.
[0006] To solve the above technical problems, the utility model provides the following technical scheme: a transmission structure, comprising a control panel, a Hall magnetic sensor arranged on the control panel, a magnetic disk arranged in front of the Hall magnetic sensor, a first transmission shaft arranged on the outer wall of the magnetic disk;The end of the first transmission shaft away from the magnetic disk is provided with a first gear;The upper part of the magnetic disk is provided with a second transmission shaft, and the outer wall of the second transmission shaft is provided with a second gear which can be engaged with the first gear.
[0007] As a preferred scheme of the transmission structure of the utility model, wherein: the precision of the Hall magnetic sensor is 0.75°.
[0008] As a preferred scheme of the transmission structure of the utility model, wherein: the magnetic disk is provided with magnetic pole N and magnetic pole S, and the magnetic pole N and the magnetic pole S occupy one half of the size of the magnetic disk respectively.
[0009] The transmission structure of the utility model has the advantages of being able to realize real-time monitoring and control of the opening position of the film winding device, improve the precision of controlling the rotation number of the film winding device, and solve the problem of high cost of limiting function by mechanical structure.
[0010] The utility model discloses another purpose is to provide a speed reducer, and its purpose is to make transmission structure and roll film device connect.
[0011] To solve above-mentioned technical problem, the utility model discloses a technical scheme still provides as follows: a speed reducer, it includes transmission structure, and third gear, the third gear sets up in the second transmission shaft outer wall, sets up the fourth gear and engages with third gear, the third transmission shaft that sets up in the fourth gear outer wall, the first cover that sets up in the third transmission shaft outer wall, the first gear ring that sets up in the first cover inner wall, and the planetary gear that engages with first gear ring, and the fifth gear that engages with planetary gear, the fourth transmission shaft that sets up in the fifth gear outer wall, the sixth gear that sets up in the fourth transmission shaft outer wall, and the input shaft that engages with sixth gear, and the drive motor that connects with input shaft.
[0012] As a preferred scheme of the utility model discloses the speed reducer, wherein: the planetary gear circumferential array has three, and the planetary gear all engage with first gear ring and fifth gear.
[0013] As a preferred scheme of the utility model discloses the speed reducer, wherein: the first cover is nested with the second cover, the first through -hole is passed through in the second cover, and the second gear ring that engages with planetary gear is arranged on the inner wall of the second cover.
[0014] As a preferred scheme of the utility model discloses the speed reducer, wherein: the input shaft has the tooth that can engage with sixth gear, and the input shaft realizes engagement by passing through the first through -hole and sixth gear.
[0015] As a preferred scheme of the utility model discloses the speed reducer, wherein: the fourth transmission shaft outer wall is equipped with the first limit slot, the second cover inner wall is equipped with the first limit boss that can cooperate with the first limit slot, and the drive motor provides rotary power for input shaft.
[0016] As a preferred scheme of the utility model discloses the speed reducer, wherein: the planetary gear and sixth gear are equipped with the circular ring, the planetary gear is equipped with the planetary axle, the circular ring is equipped with the second through -hole that can accommodate planetary axle, and the second through -hole circumferential array has three on the circular ring.
[0017] The speed reducer of the utility model has the beneficial effect that: can make the high rotation speed, small torque transmission power of drive motor output into low rotation speed, big torque transmission power, and cooperate transmission device to improve the precision of the control rotation number of roll film device. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings. Among them:
[0019] Figure 1 The transmission structure in the present application.
[0020] Figure 2 The overall three-dimensional schematic diagram of the speed reducer in the present application.
[0021] Figure 3 The internal three-dimensional schematic diagram of the speed reducer in the present application.
[0022] Figure 4 The three-dimensional schematic diagram of the second cover in the present application.
[0023] Figure 5 The overall three-dimensional schematic diagram in the present application. DETAILED DESCRIPTION
[0024] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.
[0025] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.
[0026] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor does it mean an embodiment that is separate or selectively excluded from other embodiments.
[0027] Embodiment 1
[0028] Reference Figure 1 In the first embodiment of the present application, the embodiment provides a transmission structure, which comprises a control panel 101, a Hall magnetic sensor 102 arranged on the control panel 101, a magnetic disk 103 arranged in front of the Hall magnetic sensor 102, and a first transmission shaft 104 arranged on the outer wall of the magnetic disk 103.
[0029] The Hall magnetic sensor 102 is fixedly connected on the control panel 101, the magnetic disk 103 and the Hall magnetic sensor 102 are not in contact with the control panel 101, the magnetic disk 103 is fixedly connected with the first transmission shaft 104, and the first transmission shaft 104 is fixedly connected on the surface of the magnetic disk 103 away from the control panel 101.
[0030] In use, the first transmission shaft 104 receives power input to start rotating, and the first transmission shaft 104 drives the magnetic disk 103 to rotate when rotating, the Hall magnetic sensor 102 can sense the rotating angle of the magnetic disk 103 when the magnetic disk 103 rotates, and the Hall magnetic sensor 102 can record the initial output value and the terminal output value in initial setting, and the control processing device integrated on the control panel 101 is converted into the start point, the end point limiting position and the percentage of the stroke, so that the stroke can be limited and controlled and the opening degree can be monitored and controlled.
[0031] In summary, the design can realize real-time monitoring and control of the opening position of the film winding device, improve the control precision of the rotating number of the film winding device, and solve the problem of high cost of mechanical structure for realizing the limiting function.
[0032] Embodiment 2
[0033] Reference Figure 1 For the second embodiment of the utility model, the embodiment further provides a transmission structure further comprising the Hall magnetic sensor 102 with a precision of 0.75°.
[0034] The Hall magnetic sensor 102 with a precision of 0.75° can improve the control precision of the rotating number of the film winding device.
[0035] Further, the magnetic disk 103 is provided with a magnetic pole N and a magnetic pole S, and the magnetic pole N and the magnetic pole S occupy one half of the size of the magnetic disk respectively.
[0036] Further, one end of the first transmission shaft 104 away from the magnetic disk 103 is provided with a first gear 104a, and the upper portion of the magnetic disk 103 is provided with a second transmission shaft 105, and the outer wall of the second transmission shaft 105 is provided with a second gear 104b which can be meshed and connected with the first gear 104a.
[0037] The first transmission shaft 104 passes through the center of the first gear 104a, the first gear 104a is a certain distance away from the magnetic disk 103, and it is to be noted that the distance is not more than the length of the first transmission shaft 104, and the second gear 104b is located on the second transmission shaft 105 close to one half of the magnetic disk 103; the first gear 104a can be selected from a straight gear, a bevel gear, a bevel gear, etc., and in this scheme, a straight gear is selected; the number of teeth of the first gear 104a is 50, the modulus of the first gear 104a is 1, the tooth thickness of the first gear 104a is 5, and the pressure angle of the first gear 104a is 20°; the second gear 104b can be selected from a straight gear, a bevel gear, a bevel gear, etc., and in this scheme, a straight gear is selected; the number of teeth of the second gear 104b is 10, the modulus of the second gear 104b is 1, the tooth thickness of the second gear 104b is 5, and the pressure angle of the second gear 104b is 20°; the selection of the modulus, the pressure angle and the number of teeth data is beneficial to the correct operation of the transmission structure inside the film winder, so that the service life of the transmission structure reaches the standard.
[0038] In use, the second transmission shaft 105 receives the transmission rotation from the input and drives the rotation, after the second transmission shaft 105 rotates, the second transmission shaft 105 also drives the second gear 104b to rotate when the second transmission shaft 105 rotates, the second gear 104b drives the first gear 104a engaged with the second gear 104b to rotate when the second gear 104b rotates, the first gear 104a is also driven to rotate by the second gear 104b when the first gear 104a is driven to rotate by the second gear 104b, the first transmission shaft 104 is also driven to rotate by the first gear 104a when the first transmission shaft 104 is driven to rotate by the first gear 104a, and the Hall magnetic sensor 102 is non-contact with the magnetic disk 103, when the magnetic disk 103 rotates, the Hall magnetic sensor 102 can sense the rotation angle of the magnetic disk 103, and the Hall magnetic sensor 102 can record the initial output value and the termination output value at the initial setting, and the control processing device integrated on the control panel 101 is converted into the start point, end point limiting position and percentage form of the stroke, so that the stroke can be limited and controlled and the opening degree can be monitored and controlled.
[0039] In summary, the design can realize real-time monitoring and control of the opening position of the film winder, improve the accuracy of controlling the number of rotations of the film winder, and solve the problem of high cost of relying on mechanical structure to realize the limiting function.
[0040] Example 3
[0041] Reference Figures 2 to 5For the third embodiment of the utility model, the embodiment further provides a speed reducer, further comprising a third gear 201, the third gear 201 is arranged on the outer wall of the second transmission shaft 105, a fourth gear 201a meshing with the third gear is arranged, a third transmission shaft 202 is arranged on the outer wall of the fourth gear 201a, a first cover 202a is arranged on the outer wall of the third transmission shaft 202, a first gear ring 202b is arranged on the inner wall of the first cover 202a, a planetary gear 203 is meshed with the first gear ring 202b, a fifth gear 204 is meshed with the planetary gear 203, a fourth transmission shaft 204a is arranged on the outer wall of the fifth gear 204, a sixth gear 204b is arranged on the outer wall of the fourth transmission shaft 204a, an input shaft 205 is meshed with the sixth gear 204b, and a driving motor 206 is connected with the input shaft 205.
[0042] The third gear 201 can be selected from a straight gear, a helical gear, a bevel gear, etc., and in the present scheme, a straight gear is selected, the third gear 201 has 80 teeth, a module of 1, a tooth thickness of 5, and a pressure angle of 20°; the fourth gear 201a can be selected from a straight gear, a helical gear, a bevel gear, etc., and in the present scheme, a straight gear is selected, the fourth gear 201a has 10 teeth, a module of 1, a tooth thickness of 5, and a pressure angle of 20°; the fourth gear 201a is fixed on the third transmission shaft 202, the first cover 202a is fixed on the side of the third transmission shaft 202 away from the fourth gear 201a, the first gear ring 202b is on the side of the first cover 202a away from the third transmission shaft 202, the fourth transmission shaft 204a is located at the center of the first cover 202a, the planetary gear 203 is located between the first gear ring 202b and the fifth gear 204, and the planetary gear 203 is engaged with the first gear ring 202b and the fifth gear 204; the first gear ring 202b can be selected from a straight tooth and a helical tooth, and in the present scheme, a straight tooth is selected, the first gear ring 202b has 52 teeth, a module of 1.2, a tooth thickness of 8, and a pressure angle of 20°; the planetary gear 203 can be selected from a straight gear, a helical gear, a bevel gear, etc., and in the present scheme, a straight gear is selected, the planetary gear 203 has 23 teeth, a module of 1.2, a tooth thickness of 17, and a pressure angle of 20°; the fifth gear 204 can be selected from a straight gear, a helical gear, a bevel gear, etc., and in the present scheme, a straight gear is selected, the fifth gear 204 has 8 teeth, a module of 1.2, a tooth thickness of 23, and a pressure angle of 20°; the sixth gear 204b is on the side of the fourth transmission shaft 204a away from the fifth gear 204; the sixth gear 204b can be selected from a straight gear, a helical gear, a bevel gear, etc., and in the present scheme, a helical gear is selected, the sixth gear 204b has 46 teeth, a module of 0.8, a tooth thickness of 6.5, and a pressure angle of 20°; the input shaft 205 can be selected from a straight gear, a helical gear, a bevel gear, etc., and in the present scheme, a helical gear is selected because the sixth gear 204b is a helical gear; the input shaft 205 has 8 teeth, a module of 0.8, a tooth thickness of 13.5, and a pressure angle of 20°.
[0043] Further, the planetary gear 203 is arranged in a circumferential array of three, and the planetary gear 203 is engaged with the first gear ring 202b and the fifth gear 204.
[0044] The reason for selecting three planetary gears 203 comes from the common knowledge of a conventional planetary reducer.
[0045] Further, the first cover 202a is nested with a second cover 207, the second cover 207 is provided with a first through hole 207a, and the inner wall of the second cover 207 is provided with a second gear ring 207b engaged with the planetary gear 203.
[0046] The second cover 207 is higher than the first cover 202a, and the second cover 207 has the same shape as the first cover 202a, and the first cover 202a and the second cover 207 have space inside to accommodate the first ring gear 202b, the planetary gear 203, the fifth gear 204, the fourth transmission shaft 204a and the sixth gear 204b.
[0047] Further, the input shaft 205 has teeth that can engage with the sixth gear 204b, and the input shaft 205 passes through the first through hole 207a and the sixth gear 204b to achieve engagement.
[0048] Further, the fourth transmission shaft 204a is provided with a first limiting groove 204a-1 on the outer wall; the second cover 207 is provided with a first limiting boss 207b on the inner wall which can cooperate with the first limiting groove 204a-1; and the drive motor 206 provides rotary power for the input shaft 205.
[0049] The first limiting groove 204a-1 is arranged on the outer wall of the fourth transmission shaft 204a close to the non-curved surface of the drive motor 206, and the first limiting boss 207b is arranged on the inner wall of the second cover 207 close to the planetary gear 203.
[0050] Further, the planetary gear 203 and the sixth gear 204b are provided with a circular ring 208, the planetary gear 203 is provided with a planetary shaft 203a, the circular ring 208 is provided with a second through hole 208a for accommodating the planetary shaft 203a, and the second through hole 208a is arranged in a circular array on the circular ring 208.
[0051] The three second through holes 208a on the circular ring 208 each insert a planetary shaft 203a, and it is to be noted that the circular ring 208 is arranged on both sides of the non-tooth surface of the planetary gear 203.
[0052] In use, the driving motor 206 rotates to drive the input shaft 205 to rotate, the input shaft 205 rotates to drive the sixth gear 204b to rotate, the sixth gear 204b rotates to drive the fourth transmission shaft 204a to rotate, the fourth transmission shaft 204a rotates to drive the three planetary gears 203 engaged with the fourth transmission shaft 204a to rotate, when the planetary gears 203 are driven to rotate, the first ring gear 202b engaged with the planetary gears 203 is driven to rotate, when the first ring gear 202b is driven to rotate, the first cover 202a is driven to rotate by the first ring gear 202b, when the first cover 202a is driven to rotate, the third transmission shaft 202 rotates, when the third transmission shaft 202 rotates, the fourth gear 201a rotates to drive the power, when the fourth gear 201a rotates, the third gear 201 is driven to rotate, when the third gear 201 rotates, the second transmission shaft 105 is driven to rotate, when the second transmission shaft 105 is driven to rotate, the second gear 104b is driven to rotate, when the second gear 104b is driven to rotate, the first gear 104a is driven to rotate, the first gear 104a rotates to drive the first transmission shaft 104 to rotate, at the same time, the first transmission shaft 104 drives the magnetic disc 103 to rotate, the transmission ratio is 40:1, the input shaft 205 rotates 40 times, the number of rotations of the magnetic disc 103 driven is 1, that is, when the film winder rotates from the starting position to the maximum stroke, the magnetic disc 103 rotates from 0° to 360°, the angle of the magnetic disc 103 corresponding to one rotation of the input shaft 205 is 9°, the precision of the Hall magnetic sensor 102 is 0.75°, the number of rotations of the film winder can be monitored by the Hall magnetic sensor 102, and the precision of the number of rotations of the film winder is high.
[0053] In summary, the design can convert the high-speed and small-torque driving power of the driving motor into low-speed and large-torque driving power, and improve the precision of the number of rotations of the film winder.
[0054] It is important to note that the construction and arrangements of the application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications can be made to the embodiments without departing from the novel teachings and advantages of the subject matter described herein (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, locations, and the like). For example, the elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be modified or changed. Accordingly, all such modifications are intended to be included within the scope of the present inventive subject matter. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the subject matter described herein. Any "open / closed" claims are intended to encompass the structure described herein, and not just the structure equivalent, but also the equivalent structure. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present inventive subject matter. Accordingly, the present inventive subject matter is not limited to particular embodiments described, but extends to any inventive subject matter within the scope of the appended claims.
[0055] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of an actual implementation can be described (i.e., those related to the
[0056] It is understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts can be complex and time-consuming, but would be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.
[0057] It should be noted that the above-mentioned embodiments are only used to illustrate the technical solutions of the present application but not to limit the present application, and although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalent replaced without departing from the spirit and scope of the present application, and all should be included in the scope of the claims of the present application.
Claims
1. A transmission structure (100) characterized by: The control panel (101), the Hall magnetic sensor (102) arranged on the control panel (101), the magnetic disk (103) arranged in front of the Hall magnetic sensor (102), and the first transmission shaft (104) arranged on the outer wall of the magnetic disk (103) are provided. The first transmission shaft (104) is provided with a first gear (104a) at one end away from the magnetic disk (103); and the upper portion of the magnetic disk (103) is provided with a second transmission shaft (105), and the outer wall of the second transmission shaft (105) is sleeved with a second gear (104b) which can be meshed and connected with the first gear (104a).
2. The transfer structure of claim 1, wherein: The Hall magnetic sensor (102) has a precision of 0.75°.
3. The transfer structure of claim 2, wherein: The magnetic disk (103) is provided with a magnetic pole N and a magnetic pole S, and the magnetic pole N and the magnetic pole S respectively occupy one half of the size of the magnetic disk.
4. A speed reduction device (200) characterized by: The transmission structure comprises the transmission structure of any one of claims 1-3, a third gear (201), the third gear (201) being arranged on the outer wall of the second transmission shaft (105), a fourth gear (201a) arranged in meshing relationship with the third gear, a third transmission shaft (202) arranged on the outer wall of the fourth gear (201a), a first cover (202a) arranged on the outer wall of the third transmission shaft (202), a first ring gear (202b) arranged on the inner wall of the first cover (202a), a planetary gear (203) in meshing relationship with the first ring gear (202b), a fifth gear (204) in meshing relationship with the planetary gear (203), a fourth transmission shaft (204a) arranged on the outer wall of the fifth gear (204), a sixth gear (204b) arranged on the outer wall of the fourth transmission shaft (204a), an input shaft (205) in meshing relationship with the sixth gear (204b), and a driving motor (206) connected with the input shaft (205).
5. The speed reduction device of claim 4, wherein: The planetary gears (203) are arranged in a circumferential array of three, and the planetary gears (203) are all in meshing relationship with the first ring gear (202b) and the fifth gear (204).
6. The reduction gear of claim 5, wherein: The first cover (202a) is nested with a second cover (207), the outer wall of the second cover (207) is provided with a first through hole (207a), and the inner wall of the second cover (207) is provided with a second ring gear (207b) in meshing relationship with the planetary gear (203).
7. The reduction gear of claim 6, wherein: The input shaft (205) is provided with teeth in meshing relationship with the sixth gear (204b), and the input shaft (205) passes through the first through hole (207a) to realize meshing with the sixth gear (204b).
8. The reduction gear of claim 7, wherein: The outer wall of the fourth transmission shaft (204a) is provided with a first limiting groove (204a-1), the inner wall of the second cover (207) is provided with a first limiting boss (207c) which can cooperate with the first limiting groove (204a-1), and the driving motor (206) provides rotating power for the input shaft (205).
9. The reduction gear of claim 8, wherein: The planet gear (203) is provided with a circular ring (208) between the planet gear (203) and the sixth gear (204b), the outer wall of the planet gear (203) is provided with a planet shaft (203a), the circular ring (208) is provided with a second through hole (208a) capable of accommodating the planet shaft (203a), and the second through hole (208a) is arranged in a circular array with three on the circular ring (208).