Speed-changing gear box experimental device for electromechanical transmission training

Abstract

The utility model relates to the technical field of electromechanical tests, and discloses a gearbox experimental device for electromechanical transmission training, which comprises a base, the base comprises supporting legs and a supporting plate mounted on the supporting legs, a gearbox module is arranged above the supporting plate, a motor is further mounted above the supporting plate, and the gearbox module is connected with the motor. The output end of the motor is in transmission connection with a universal joint transmission mechanism, the output end of the universal joint transmission mechanism is connected with the input end of the speed-changing gear box module and used for driving the speed-changing gear box module to operate, and the portion, located above the supporting plate, of the base is covered with a protective cover; the transmission gear box modules are of various types and comprise shells rotationally installed above the supporting plate, the shells are internally provided with parallel shaft transmission gear box modules, bevel gear transmission gear box modules and planetary transmission gear box modules respectively, and students can know the transmission principle of planetary gears and application scenes of different planetary gear combinations. More intuitive and profound understanding and experience can be obtained, and the learning effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of electromechanical experiments, in particular to a gear box experimental device used for electromechanical transmission training. Background Art

[0002] Electromechanical transmission systems are widely used in various mechanical equipment and are key components for achieving mechanical motion and power transmission. Among them, gearboxes, as one of the common transmission mechanisms, can achieve changes in speed or torque through gear transmission, playing an important role in industrial production and daily life.

[0003] In the teaching process of mechatronic transmission related majors, students need to be able to intuitively understand and master the working principles and characteristics of different types of gearboxes. Traditional teaching methods usually use multimedia demonstrations, physical displays and other means, but lack practical operation links, making it difficult for students to personally experience the movement state inside the gearbox, and the understanding and memory effects are not ideal.

[0004] There are some existing gearbox teaching and training devices that allow trainees to observe the operation of the gearbox by installing a physical gearbox model. However, these devices usually only integrate a single type of gearbox, such as a parallel shaft gearbox or a planetary gearbox, and cannot fully demonstrate the working principles and characteristics of different gearboxes. In addition, there are certain problems with the safety and stability of traditional test devices. For example, the exposed part of the gearbox module is prone to accidental damage. Utility Model Content

[0005] In view of the above problems, the utility model aims to provide a gear box experimental device for electromechanical transmission training.

[0006] To achieve this technical purpose, the solution of the utility model is:

[0007] A gear transmission experimental device for electromechanical transmission training, comprising a base, the base comprising support legs and a support plate installed on the support legs, a gear transmission module is arranged above the support plate, a motor is also installed above the support plate, a universal joint transmission mechanism is transmission-connected to the output end of the motor, the output end of the universal joint transmission mechanism is connected to the input end of the gear transmission module, and is used to drive the operation of the gear transmission module, and the base is located above the support plate and is covered with a protective cover;

[0008] The gear transmission module is provided in various types, including a shell rotatably mounted above a support plate, wherein a parallel axis transmission module, a helical gear transmission module and a planetary transmission module are respectively provided inside the shell.

[0009] Preferably, the base is a metal frame structure for supporting the entire test device.

[0010] Preferably, the universal joint transmission mechanism comprises an input universal joint, a connecting shaft and an output universal joint, the input universal joint is connected to the output shaft of the motor, and the output universal joint is connected to the input shaft of the gear transmission module.

[0011] Preferably, the shell is cylindrical and has an opening on the top. The inner bottom of the shell is provided with no less than three groups of mounting grooves. The parallel shaft gearbox module, the helical gear gearbox module and the planetary gearbox module are respectively installed in the mounting grooves. The side of the shell is provided with opening grooves corresponding to the three groups of mounting grooves. The input shaft of the parallel shaft gearbox module, the helical gear gearbox module or the planetary gearbox module passes through the opening groove and is connected to the output universal joint through a coupling.

[0012] Preferably, the outer wall of the shell is provided with a sliding groove matching the number of the open grooves, an arc-shaped protective cover is slidingly connected in the sliding groove, a fixed cover matching the arc-shaped protective cover is arranged below the arc-shaped protective cover, the fixed cover is mounted on the outer wall of the shell by bolts, and the arc-shaped protective cover is matched and engaged with the fixed cover when it moves downward to protect the exposed rotating shaft.

[0013] Preferably, fastening components are hingedly connected to two sides of the fixed cover;

[0014] The fastening assembly comprises an articulated seat arranged on the fixed cover, a clamping rod is rotatably connected to the articulated seat, a clamping block is connected to the clamping rod in an arc shape, and a strip hole matching the clamping rod is opened on the side of the arc-shaped protective cover.

[0015] Preferably, a bearing seat is installed above the support plate, a roller shaft is installed on the inner ring of the bearing seat, the axis of the shell is connected to one end of the roller shaft for driving the rotation of the shell, a positioning hole is opened on the shell, and a positioning mechanism is installed in the positioning hole.

[0016] Preferably, the positioning mechanism includes a plurality of groups of elongated arc-shaped holes opened on the support plate, a positioning rod is inserted into the positioning hole, a limiting protrusion is provided at one end of the positioning rod close to the shell, the other end of the positioning rod is inserted into the arc-shaped hole, and an external thread is provided on the outer surface of one end of the positioning rod close to the arc-shaped hole.

[0017] Technical effects and advantages of the utility model:

[0018] (1) Visual display of various gear transmission modes: This test device integrates parallel shaft gearbox module, helical gearbox module and planetary gearbox module to realize the intuitive display of various gear transmission modes. Students can observe and analyze the principles and characteristics of different transmission modes through practical operation, and have a deep understanding of the internal mechanism of the electromechanical transmission system. For example, the parallel shaft gearbox module demonstrates the characteristics of parallel shaft transmission, and students can observe the parallel relationship between shafts and the meshing process of gears; the helical gearbox module demonstrates the advantages of helical gear transmission, and students can observe the meshing mode and transmission efficiency of helical gears; the planetary gearbox module demonstrates the complexity and flexibility of the planetary gear system, and students can understand the transmission principle of planetary gears and the application scenarios of different planetary gear combinations. In this way, students can gain a more intuitive and profound understanding and experience, and improve learning effects.

[0019] (2) Enhance the safety and stability of test operations: This test device has fully considered safety and stability in its design and construction. First, by setting up a protective cover to wrap the entire test device, the exposed parts of the test device are effectively protected to prevent accidental injuries. Secondly, through the use of bearing seats and positioning mechanisms, the accurate installation and stable operation of the gearbox module are ensured. The inner ring of the bearing seat is equipped with a roller shaft, and the axis of the shell is connected to one end of the roller shaft to drive the rotation of the shell, thereby realizing the smooth rotation of the gearbox module. At the same time, the positioning mechanism realizes the precise positioning of the gearbox module through the cooperation of the positioning rod and the arc hole, avoiding accidental movement or shaking during the test operation, and ensuring the stability and safety of the test process. This design not only protects the safety of trainees and test equipment, but also ensures the accuracy and reliability of the test results, providing a safer and more stable environment for trainees' test learning and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the local three-dimensional structure of the utility model Figure 1 ;

[0022] Figure 3 This is a front view structural schematic diagram of the utility model;

[0023] Figure 4 It is a schematic diagram of the local three-dimensional structure of the utility model Figure 2 ;

[0024] Figure 5 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0025] Figure 6It is a structural schematic diagram of the fastening assembly of the utility model;

[0026] Figure 7 It is a cross-sectional structural schematic diagram of the positioning mechanism of the utility model.

[0027] In the figure: 1. base; 2. gear transmission module; 21. parallel axis transmission module; 22. bevel gear transmission module; 23. planetary transmission module; 3. motor; 4. universal joint transmission mechanism; 41. input universal joint; 42. connecting shaft; 43. output universal joint; 5. supporting leg; 6. support plate; 7. shell; 71. mounting groove; 72. opening groove; 73. slide groove; 74. arc-shaped protective cover; 75. fixing cover; 76. fastening assembly; 761. hinge seat; 762. clamping rod; 763. clamping block; 764. strip hole; 77. positioning hole; 78. positioning mechanism; 781. arc-shaped hole; 782. positioning rod; 783. limiting protrusion; 8. bearing seat; 81. roller shaft; 9. protective cover. DETAILED DESCRIPTION

[0028] The utility model of the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. In order to clearly and completely describe the technical solution, the following embodiments are selected for illustration; based on the contents recorded in this application, other embodiments obtained without creative work are all within the scope of protection of this utility model.

[0029] In the following embodiments, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", "top / bottom" and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of clearly describing the present embodiment, rather than indicating or implying that the device or element referred to must have a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0030] The following is combined with Figure 1-7 To further explain this application in detail,

[0031] The present application discloses a gear transmission experimental device for electromechanical transmission training, comprising a base 1, the base 1 is a metal frame structure, used to support the entire experimental device, the base 1 comprises support legs 5 and a support plate 6 installed on the support legs 5, wherein the support legs 5 are welded or bolted to the bottom of the base 1, ensuring that the base 1 has a sufficient height from the ground, which is convenient for trainees to operate and observe, a gear transmission module 2 is arranged above the support plate 6, a motor 3 is also installed above the support plate 6, a universal joint transmission mechanism 4 is transmission-connected to the output end of the motor 3, the output end of the universal joint transmission mechanism 4 is connected to the input end of the gear transmission module 2, and is used to drive the operation of the gear transmission module 2, and the base 1 is located above the support plate 6 and is covered with a protective cover 9;

[0032] The gear transmission module 2 is provided in various types, including a housing 7 rotatably mounted above the support plate 6 , wherein a parallel axis transmission module 21 , a helical gear transmission module 22 and a planetary transmission module 23 are respectively provided inside the housing 7 .

[0033] When in use, first place the base 1 firmly in the test room, and ensure that the height of the base 1 is appropriate so that the trainees can operate and observe. On the support plate 6, a gear transmission module 2 is installed, and the module 2 includes various types of gearboxes, such as a parallel axis gearbox module 21, a helical gear transmission module 22, and a planetary gearbox module 23. These gearbox modules allow trainees to personally experience different types of gear transmission modes and deepen their understanding of electromechanical transmission systems.

[0034] The universal joint transmission mechanism 4 includes an input universal joint 41, a connecting shaft 42 and an output universal joint 43. The input universal joint 41 is connected to the output shaft of the motor 3, and the output universal joint 43 is connected to the input shaft of the gear transmission module 2, ensuring that power can be efficiently transmitted even when there is a certain angle deviation.

[0035] The shell 7 is cylindrical in shape, and the top of the shell 7 is open for easy observation of the internal structure. The inner bottom of the shell 7 is provided with no less than three groups of mounting grooves 71. The parallel shaft gearbox module 21, the helical gear gearbox module 22 and the planetary gearbox module 23 are respectively installed in the mounting grooves 71. The side of the shell 7 is provided with opening grooves 72 corresponding to the three groups of mounting grooves 71. The input shaft of the parallel shaft gearbox module 21, the helical gear gearbox module 22 or the planetary gearbox module 23 passes through the opening groove 72 and is connected to the output universal joint 43 through a coupling.

[0036] The rotation of the motor 3 can be transmitted to one of the parallel shaft gearbox module 21, the helical gear gearbox module 22 or the planetary gearbox module 23 through the universal joint transmission mechanism 4, which makes it convenient for students to learn the speed shifting principle of the gearbox. Moreover, the parallel shaft gearbox module 21, the helical gear gearbox module 22 or the planetary gearbox module 23 can switch positions, making learning more efficient.

[0037] The outer wall of the shell 7 is provided with sliding grooves 73 whose number matches the opening grooves 72, and an arc-shaped protective cover 74 is slidingly connected in the sliding groove 73. A fixed cover 75 matching the arc-shaped protective cover 74 is provided below the arc-shaped protective cover 74. The fixed cover 75 is installed on the outer wall of the shell 7 by bolts. When the arc-shaped protective cover 74 moves downward, it matches and engages with the fixed cover 75 to protect the exposed rotating shaft.

[0038] The two sides of the fixed cover 75 are hinged with fastening components 76;

[0039] The fastening assembly 76 includes an articulated seat 761 arranged on the fixed cover 75, and a clamping rod 762 is rotatably connected to the articulated seat 761. The clamping rod 762 is connected to a clamping block 763 arranged in an arc shape, and a strip hole 764 matching the clamping rod 762 is opened on the side of the arc-shaped protective cover 74.

[0040] Specifically, when the test device is running, there is a certain safety hazard because the rotating shaft is exposed. In order to eliminate the hazard, the arc-shaped protective cover 74 is slid downward, and the arc-shaped protective cover 74 slides to the fixed cover 75, so that the fixed cover 75 and the arc-shaped protective cover 74 fit each other and cover the outside of the rotating shaft. By rotating the clamping rod 762, one end of the clamping rod 762 is clamped in the bar hole 764. Since a clamping block 763 is provided on the clamping rod 762, the clamping block 763 will gradually be tightened during the process of moving inward, so that the fixed cover 75 and the arc-shaped protective cover 74 fit tightly, thereby playing a protective role.

[0041] When switching the parallel shaft gearbox module 21 , the helical gear gearbox module 22 or the planetary gearbox module 23 for testing, the housing 7 needs to be fixed.

[0042] In the present application, a bearing seat 8 is installed above the support plate 6, and a roller shaft 81 is installed on the inner ring of the bearing seat 8. The axis of the shell 7 is connected to one end of the roller shaft 81 for driving the rotation of the shell 7. A positioning hole 77 is opened on the shell 7, and a positioning mechanism 78 is installed in the positioning hole 77.

[0043] The positioning mechanism 78 includes a plurality of groups of arc-shaped holes 781 in the form of long strips formed on the support plate 6, a positioning rod 782 is inserted into the positioning hole 77, a limiting protrusion 783 is provided at one end of the positioning rod 782 close to the shell 7, the other end of the positioning rod 782 is inserted into the arc-shaped hole 781, and an external thread is provided on the outer surface of one end of the positioning rod 782 close to the arc-shaped hole 781.

[0044] When one of the parallel shaft gearbox module 21, the helical gear gearbox module 22 or the planetary gearbox module 23 is moved to a suitable position, the positioning rod 782 is inserted into the positioning hole 77, and then a nut is used to tighten the external thread of the positioning rod 782 at the lower end of the positioning rod 782, thereby completing the fixation of the housing 7 and increasing the stability of the device during the test.

[0045] One of the embodiments: In a teaching experiment, the teacher first shows the gear box test device to the students and explains its structure and working principle. Then the students operate the device by themselves and perform the following steps:

[0046] Make sure that the base 1 is firmly placed in the test chamber.

[0047] The trainee selects a gearbox module (parallel shaft gearbox module 21, helical gear gearbox module 22 or planetary gearbox module 23).

[0048] Start the device through the motor 3 and observe how the universal joint transmission mechanism 4 transmits the rotational power of the motor to the selected gear transmission module 2.

[0049] When it is necessary to switch different gearbox modules for comparative study, the trainee changes the module by moving the housing 7 and uses the positioning mechanism 78 to fix the position of the housing 7 .

[0050] Through observation and operation, trainees understand the working principles and characteristics of different types of gearboxes.

[0051] Through such practical operations, students can not only combine theory with practice, but also develop the ability to solve practical problems. This teaching gear transmission test device provides students with an intuitive and practical learning platform.

[0052] Working principle: First, the motor 3 is connected to the output shaft through the input universal joint 41 of the universal joint transmission mechanism 4. When the motor 3 is powered on and starts to rotate, the power on its output shaft is transmitted to the output universal joint 43 through the universal joint transmission mechanism 4.

[0053] The output universal joint 43 is connected to the input shaft of the gearbox module 2, so as to transmit the rotational power of the motor to the gearbox module 2. Due to the design of the universal joint transmission mechanism 4, even if there is a certain angle deviation, efficient power transmission can be ensured.

[0054] The gearbox module 2 includes a parallel shaft gearbox module 21, a helical gearbox module 22 and a planetary gearbox module 23, which are mounted in different mounting slots 71 in the housing 7. Each gearbox module has its own unique transmission mode and characteristics, allowing students to learn and compare different gear transmission technologies.

[0055] The outer wall of the housing 7 is provided with a slide groove 73, an arc-shaped protective cover 74, and a fixed cover 75. When the arc-shaped protective cover 74 moves downward and is matched and engaged with the fixed cover 75, the exposed rotating shaft can be effectively protected to prevent accidental damage. At the same time, the fastening assembly 76 ensures the stability and reliability of the protective cover.

[0056] The positioning mechanism 78 ensures that the gearbox module can be accurately installed in a suitable position through the cooperation of the positioning rod 782 and the arc hole 781. When the gearbox module needs to be switched, the positioning rod 782 is inserted into the positioning hole 77 and fastened with a nut to fix the housing 7, thereby ensuring the stability and accuracy of the test operation.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. A gearbox experimental device for electromechanical transmission training, characterized in that: The invention comprises a base (1), wherein the base (1) comprises supporting legs (5) and a support plate (6) mounted on the supporting legs (5), a gear transmission module (2) is arranged above the support plate (6), a motor (3) is also mounted above the support plate (6), the output end of the motor (3) is connected to a universal joint transmission mechanism (4), the output end of the universal joint transmission mechanism (4) is connected to the input end of the gear transmission module (2) for driving the gear transmission module (2), and the base (1) is located above the support plate (6) and is covered with a protective cover (9); The gear transmission module (2) is provided in various types, including a shell (7) rotatably mounted above a support plate (6), wherein a parallel axis transmission module (21), a helical gear transmission module (22) and a planetary transmission module (23) are respectively provided inside the shell (7).

2. A gearbox experimental device for electromechanical transmission training according to claim 1, characterized in that: The base (1) is a metal frame structure, used to support the entire test device.

3. The gear box experimental device for electromechanical transmission training according to claim 1 is characterized in that: The universal joint transmission mechanism (4) comprises an input universal joint (41), a connecting shaft (42) and an output universal joint (43), wherein the input universal joint (41) is connected to the output shaft of the motor (3), and the output universal joint (43) is connected to the input shaft of the gear transmission module (2).

4. The gear box experimental device for electromechanical transmission training according to claim 1 is characterized in that: The housing (7) is cylindrical and has an opening at the top. The inner bottom of the housing (7) is provided with at least three groups of mounting grooves (71). The parallel axis gearbox module (21), the helical gear gearbox module (22) and the planetary gearbox module (23) are respectively installed in the mounting grooves (71). The side of the housing (7) is provided with opening grooves (72) corresponding to the three groups of mounting grooves (71). The input shaft of the parallel axis gearbox module (21), the helical gear gearbox module (22) or the planetary gearbox module (23) passes through the opening groove (72) and is connected to the output universal joint (43) through a coupling.

5. The gearbox experimental device for electromechanical transmission training according to claim 4 is characterized in that: The outer wall of the shell (7) is provided with a sliding groove (73) whose number matches the number of the opening grooves (72); an arc-shaped protective cover (74) is slidably connected in a limited position in the sliding groove (73); a fixed cover (75) matching the arc-shaped protective cover (74) is arranged below the arc-shaped protective cover (74); the fixed cover (75) is mounted on the outer wall of the shell (7) by bolts; when the arc-shaped protective cover (74) moves downward, it matches and engages with the fixed cover (75) to protect the exposed rotating shaft.

6. The gear box experimental device for electromechanical transmission training according to claim 5 is characterized by: The two side surfaces of the fixed cover (75) are hingedly connected with fastening components (76); The fastening assembly (76) comprises a hinge seat (761) arranged on the fixed cover (75), a clamping rod (762) is rotatably connected to the hinge seat (761), a clamping block (763) arranged in an arc shape is connected to the clamping rod (762), and a strip hole (764) matching the clamping rod (762) is opened on the side of the arc-shaped protective cover (74).

7. The gear box experimental device for electromechanical transmission training according to claim 6 is characterized by: A bearing seat (8) is installed above the support plate (6), and a roller shaft (81) is installed on the inner ring of the bearing seat (8). The axis of the shell (7) is connected to one end of the roller shaft (81) for driving the shell (7) to rotate. A positioning hole (77) is opened on the shell (7), and a positioning mechanism (78) is installed in the positioning hole (77).

8. The gear box experimental device for electromechanical transmission training according to claim 7 is characterized in that: The positioning mechanism (78) comprises a plurality of groups of arc-shaped holes (781) in the form of long strips formed on the support plate (6); a positioning rod (782) is inserted into the positioning hole (77); a limiting protrusion (783) is provided at one end of the positioning rod (782) close to the housing (7); the other end of the positioning rod (782) is inserted into the arc-shaped hole (781); and an external thread is provided on the outer surface of one end of the positioning rod (782) close to the arc-shaped hole (781).

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