Elliptical machine

Abstract

An elliptical machine comprises a machine frame, a transmission mechanism and a motor, the machine frame comprises a base and a cross beam, the motor is arranged on the machine frame and located below the cross beam, and the transmission mechanism comprises a transmission gear set and a speed reduction bevel gear. The transmission gear set comprises a first driving gear, a second driving gear, a first auxiliary gear and a second auxiliary gear which are arranged on one side of the cross beam and are sequentially meshed, the speed reduction bevel gear is coaxially and fixedly connected with the first auxiliary gear, and a worm meshed with the speed reduction bevel gear is arranged at the output end of the motor; and two connecting turntables are arranged on the other side of the cross beam and are respectively connected with the first driving gear and the second driving gear through transmission pieces. Compared with the prior art, the speed reduction bevel gear is additionally arranged, so that the effects of reducing the rotating speed and increasing the torque can be achieved for the motor, and the output power of the motor is improved; when the transmission gear set is overhauled, the pedal and the connecting turntable do not need to be disassembled firstly.

Description

Technical Field

[0001] The utility model relates to the field of fitness equipment, in particular to an elliptical machine. Background Art

[0002] The elliptical machine, also known as a cross-training machine, is mainly used to simulate exercises such as climbing stairs, walking or running. It combines the advantages of a treadmill and a bicycle to perform full-body exercise. The pedals of the elliptical machine are powered by a motor and driven by a transmission gear. Existing elliptical machines, such as an elliptical machine disclosed in Chinese utility model CN ​​219208886U, have a transmission gear composed of two main transmission gears and two auxiliary transmission gears. The output shaft of the motor is directly connected to the auxiliary transmission gear to drive the auxiliary transmission gear. When the pedals of existing elliptical machines need to be driven by a large torque, the conventional method is to use a high-efficiency motor to increase the motor power, so the configuration cost of the motor will increase; in addition, the pedals and connectors are arranged on the main transmission gear. When the main transmission gear is inspected, the pedals must be disassembled first, which is inconvenient to operate. Utility Model Content

[0003] In view of the above problems, the utility model provides an elliptical machine transmission structure which has a more reasonable structure and can improve the output power of the motor.

[0004] The technical solution used by the utility model to solve the above problems is: an elliptical machine, including a frame, a transmission mechanism and a motor, the frame including a base and a crossbeam, the motor is arranged on the frame and below the crossbeam, the transmission mechanism includes a transmission gear set and a reduction bevel gear, the transmission gear set includes a first driving gear, a second auxiliary gear, a first auxiliary gear and a second driving gear arranged on one side of the crossbeam and meshing in sequence, the reduction bevel gear is coaxially fixedly connected with the first auxiliary gear, and a worm meshing with the reduction bevel gear is arranged at the output end of the motor; two connecting turntables are arranged on the other side of the crossbeam, the two connecting turntables are respectively connected to the first driving gear and the second driving gear through a transmission member, and a pedal is arranged on the connecting turntable.

[0005] The elliptical machine of the utility model adds a reduction helical gear between the motor and the transmission gear set, and the transmission gear set and the pedal are respectively arranged on both sides of the crossbeam. Compared with the prior art, the advantages of adopting the above structure are: 1. The addition of the reduction helical gear can reduce the speed of the motor and increase the torque, thereby increasing the output power of the motor without increasing the motor configuration; 2. When inspecting the transmission gear set, it can be inspected directly on one side of the crossbeam without first removing the pedal and the connecting turntable, which is convenient for the inspection and operation of the transmission gear set.

[0006] Preferably, two vertical columns are provided on the base, and the two ends of the beam in the length direction are connected to the two columns respectively. The transmission member includes a first transmission shaft, a second transmission shaft, a third transmission shaft and a fourth transmission shaft, which are arranged at intervals along the length direction of the beam and penetrate the beam, the first driving gear and the second driving gear are respectively connected to one end of the first transmission shaft and the fourth transmission shaft, the first auxiliary gear and the second auxiliary gear are respectively connected to one end of the second transmission shaft and the third transmission shaft, and the two connecting turntables are respectively connected to the other end of the first transmission shaft and the fourth transmission shaft. The first transmission shaft, the second transmission shaft, the third transmission shaft and the fourth transmission shaft are arranged in parallel and their axes are perpendicular to the length direction of the beam, and the first transmission shaft and the fourth transmission shaft are also used for connecting the two connecting turntables with the first driving gear and the second driving gear.

[0007] Preferably, the first driving gear, the second auxiliary gear, the first auxiliary gear and the second driving gear are all helical cylindrical gears. This arrangement can save internal space of the product and reduce the volume of the product.

[0008] Preferably, the motor is tilted, and the angle between the axis of the worm and the horizontal line is between 30° and 60°.

[0009] Preferably, a mounting cavity is provided in the cross beam, the reduction helical gear is installed in the mounting cavity, and the reduction helical gear is connected to the third transmission shaft. This arrangement can effectively utilize the rack space without increasing the machine volume due to the addition of the reduction helical gear.

[0010] Preferably, the outer cover of the reduction helical gear is provided with a gear box, and the gear box is fixed to the inner wall connected to the installation cavity.

[0011] Preferably, the reduction bevel gear is integrally connected to the third transmission shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the elliptical machine of the utility model.

[0013] Figure 2 It is a cross-sectional view of the elliptical machine of the present invention.

[0014] Figure 3 It is an exploded view of the elliptical machine of the present invention.

[0015] Figure 4 The utility model is a structural schematic diagram of the elliptical machine after the outer shell is removed.

[0016] As shown in the figure: 1. frame, 11. base, 111. column, 12. beam, 120. installation cavity, 2. motor, 21. worm, 31. first driving gear, 32. second driving gear, 33. first auxiliary gear, 34. second auxiliary gear, 35. reduction bevel gear, 351. gear box, 361. first transmission shaft, 362. second transmission shaft, 363. third transmission shaft, 364. fourth transmission shaft, 4. connecting turntable, 5. pedal, a. outer casing. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0018] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an elliptical machine includes a frame 1, a transmission mechanism and a motor 2. The frame 1 includes a base 11 and a crossbeam 12. Two vertical columns 111 are provided on the base 11. The two ends of the crossbeam 12 in the length direction are respectively connected to the two columns 111. The motor 2 is arranged on the frame 1 and located below the crossbeam 12. The transmission mechanism includes a transmission gear set and a reduction bevel gear 35. The transmission gear set includes a first driving gear 31, a second auxiliary gear 34, a first auxiliary gear 33 and a second driving gear 32 which are arranged on one side of the crossbeam 12 and are arranged and meshed in sequence. The sequential meshing means that the first auxiliary gear 33 and the second auxiliary gear 34 are arranged between the first driving gear 31 and the second driving gear 32, the first auxiliary gear 33 and the second auxiliary gear 34 are meshed with each other, the first auxiliary gear 33 and the first driving gear 31 are meshed with each other, and the second auxiliary gear 34 and the second driving gear 32 are meshed with each other. The reduction bevel gear 35 is coaxially fixedly connected with the first auxiliary gear 33, and the output end of the motor 2 is provided with a worm 21 meshing with the reduction bevel gear 35. Two connecting turntables 4 are provided on the other side of the crossbeam 12, and the two connecting turntables 4 are respectively connected with the first driving gear 31 and the second driving gear 32 through transmission members, and a pedal 5 is provided on the connecting turntable 4. A housing a is provided on the frame 1, and the pedal 5 is exposed outside the housing a.

[0019] The transmission parts include a first transmission shaft 361, a second transmission shaft 362, a third transmission shaft 363 and a fourth transmission shaft 364. The first transmission shaft 361, the second transmission shaft 362, the third transmission shaft 363 and the fourth transmission shaft 364 are arranged at intervals along the length direction of the beam 12 and pass through the beam 12; the axes of the first transmission shaft 361, the second transmission shaft 362, the third transmission shaft 363 and the fourth transmission shaft 364 are perpendicular to the length direction of the beam 12.

[0020] The first driving gear 31, the second auxiliary gear 34, the first auxiliary gear 33 and the second driving gear 32 are all helical cylindrical gears, and the inclination angles of the first driving gear 31, the second auxiliary gear 34, the first auxiliary gear 33 and the second driving gear 32 are between 2° and 10°. In this example, the inclination angles of the first driving gear 31, the second auxiliary gear 34, the first auxiliary gear 33 and the second driving gear 32 are 4°. The reduction helical gear 35 is a helical cylindrical gear, and the inclination angle of the reduction helical gear 35 is between 5° and 20°, and the inclination angle of the reduction helical gear 35 is 18°. The inclination angle refers to the angle between the gear tooth surface and the axis.

[0021] The first driving gear 31 and the second driving gear 32 are connected to one end of the first transmission shaft 361 and the fourth transmission shaft 364, respectively, and the first auxiliary gear 33 and the second auxiliary gear 34 are connected to one end of the second transmission shaft 362 and the third transmission shaft 363, respectively. A square hole is provided in the center of the first driving gear 31, the second driving gear 32, the first auxiliary gear 33 and the second auxiliary gear 34, and a square connecting column is provided at one end of the first transmission shaft 361, the second transmission shaft 362, the third transmission shaft 363 and the fourth transmission shaft 364 to match the square hole. Two connecting rotating disks 4 are connected to the other end of the first transmission shaft 361 and the fourth transmission shaft 364, respectively, and the first transmission shaft 361 and the fourth transmission shaft 364 are used for connecting the two connecting rotating disks 4 with the first driving gear 31 and the second driving gear 32.

[0022] The motor 2 is tilted, and the angle between the axis of the worm 21 and the horizontal line is between 30° and 60°. In this example, the angle between the axis of the worm 21 and the horizontal line is 45°.

[0023] The cross beam 12 is provided with an installation cavity 120, and the reduction helical gear 35 is installed in the installation cavity 120, and the reduction helical gear 35 is connected to the third transmission shaft 363. This arrangement can effectively utilize the internal space of the cross beam 12 on the frame 1, and the machine volume will not be increased due to the addition of the reduction helical gear 35.

[0024] A gear box 351 is disposed on the outer cover of the reduction bevel gear 35 , and the gear box 351 is fixed to the inner wall of the installation cavity 120 .

[0025] The reduction bevel gear 35 is integrally connected to the third transmission shaft 363 to increase the strength of the components.

[0026] The elliptical machine of the utility model is provided with a reduction bevel gear 35 between the motor 2 and the transmission gear set. The addition of the reduction bevel gear can reduce the rotation speed of the motor and increase the torque, thereby improving the output power of the motor without increasing the motor configuration. In addition, the transmission gear set and the pedal 5 are respectively arranged on both sides of the crossbeam 12. When inspecting the transmission gear set, there is no need to remove the pedal and the connecting turntable first, which facilitates the inspection and operation of the transmission gear set.

Claims

1. An elliptical machine, comprising a frame (1), a transmission mechanism and a motor (2), wherein the frame (1) comprises a base (11) and a crossbeam (12), and the motor (2) is arranged on the frame (1) and below the crossbeam (12), and is characterized in that: The transmission mechanism comprises a transmission gear set and a reduction bevel gear (35), wherein the transmission gear set comprises a first driving gear (31), a second auxiliary driving gear (34), a first auxiliary driving gear (33) and a second driving gear (32) which are arranged on one side of a crossbeam (12) and meshed in sequence, the reduction bevel gear (35) is coaxially fixedly connected to the first auxiliary driving gear (33), and a worm (21) meshing with the reduction bevel gear (35) is provided at the output end of the motor (2); two connecting rotating disks (4) are provided on the other side of the crossbeam (12), and the two connecting rotating disks (4) are respectively connected to the first driving gear (31) and the second driving gear (32) through a transmission member, and a pedal (5) is provided on the connecting rotating disk (4).

2. The elliptical machine according to claim 1, characterized in that: Two vertical columns (111) are provided on the base (11); the two ends of the crossbeam (12) in the length direction are respectively connected to the two columns (111); the transmission member comprises a first transmission shaft (361), a second transmission shaft (362), a third transmission shaft (363) and a fourth transmission shaft (364); the first transmission shaft (361), the second transmission shaft (362), the third transmission shaft (363) and the fourth transmission shaft (364) are arranged at intervals along the length direction of the crossbeam (12) and penetrate the crossbeam (12); the first driving gear (31) and the second driving gear (32) are respectively connected to one end of the first transmission shaft (361) and the fourth transmission shaft (364); the first auxiliary gear (33) and the second auxiliary gear (34) are respectively connected to one end of the second transmission shaft (362) and the third transmission shaft (363); and the two connecting rotating disks (4) are respectively connected to the other end of the first transmission shaft (361) and the fourth transmission shaft (364).

3. The elliptical machine according to claim 1, characterized in that: The first driving gear (31), the second auxiliary driving gear (34), the first auxiliary driving gear (33) and the second driving gear (32) are all helical cylindrical gears.

4. The elliptical machine according to claim 1, characterized in that: The motor (2) is arranged tilted, and the angle between the axis of the worm (21) and the horizontal line is between 30° and 60°.

5. The elliptical machine according to claim 2, characterized in that: The cross beam (12) is provided with a mounting cavity (120), the reduction bevel gear (35) is mounted in the mounting cavity (120), and the reduction bevel gear (35) is connected to the third transmission shaft (363).

6. The elliptical machine according to claim 2, characterized in that: The outer cover of the reduction bevel gear (35) is provided with a gear box (351), and the gear box (351) is fixed to the inner wall of the installation cavity (120).

7. The elliptical machine according to claim 5, characterized in that: The reduction bevel gear (35) is integrally connected to the third transmission shaft (363).

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