Wheel type torque output device

Abstract

The utility model provides a wheel type torque output device, relates to the technical field of torque output devices, and aims to solve the technical problem that a rotating wheel cannot rotate due to the fact that a belt easily slips at the beginning of rotation of a wheel type torque output device in the prior art. The wheel type torque output device comprises a rack, a rotating wheel, a driving mechanism and an initial starting auxiliary system, the rotating wheel is rotationally connected to the rack through a rotating shaft, the driving mechanism comprises a belt, a power wheel and a first motor, the power wheel is rotationally connected to the rack, the first motor is connected with the rack and drives the power wheel to rotate, and the belt is wound around the rotating wheel and the power wheel; the initial starting auxiliary system comprises a second motor, a gearbox and a clutch, the second motor is connected to the rack and connected with the clutch through the gearbox, and the clutch is connected with the rotating shaft; the first motor and the second motor are started simultaneously to drive the rotating wheel to rotate, the second motor assists the rotating wheel to rotate at the beginning of rotation of the rotating wheel, belt slipping is prevented, and normal starting of the rotating wheel is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of torque output devices, in particular to a wheel-type torque output device. Background Art

[0002] The wheel-type torque output device mainly drives the power wheel through the motor, and then the power wheel transmits the power to the large-diameter wheel through the belt. After the large-diameter wheel rotates, it can output a larger torque, which can save effort and has high economic benefits. However, before the large-diameter wheel starts to rotate, it is necessary to overcome static friction, and the static friction is greater than the sliding friction when the large-diameter wheel rotates. Therefore, at the beginning of the rotation of the large-diameter wheel, a greater force is needed to drive the large-diameter wheel to rotate, and the power wheel drives the large-diameter wheel through the belt, the belt is easy to slip, resulting in the large-diameter wheel being unable to rotate. Utility Model Content

[0003] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a wheel-type torque output device to solve the technical problem that the belt of the wheel-type torque output device in the prior art easily slips at the beginning of rotation, causing the rotating wheel to be unable to rotate.

[0004] In order to solve the above technical problems, the utility model provides a wheel torque output device, including a frame, a rotating wheel, a driving mechanism and an initial starting auxiliary system. The rotating wheel is rotatably connected to the frame through a rotating shaft. The driving mechanism includes a belt, a power wheel and a first motor. The power wheel is rotatably connected to the frame. The first motor is connected to the frame and drives the power wheel to rotate. The belt is wrapped around the rotating wheel and the power wheel. The initial starting auxiliary system includes a second motor, a gearbox and a clutch. The second motor is connected to the frame. The second motor is connected to the clutch through the gearbox, and the clutch is connected to the rotating shaft.

[0005] After adopting the above structure, the wheel-type torque output device of the utility model has the following advantages: the first motor in the driving mechanism drives the power wheel to rotate, and the power wheel drives the rotating wheel to rotate through the belt to output a large torque. At the beginning of the rotation, the first motor in the driving mechanism and the second motor in the initial starting auxiliary system are started at the same time to drive the rotating wheel to rotate. The second motor is connected to a gearbox and can output a large torque. At the beginning of the rotation of the rotating wheel, the rotating wheel is assisted to rotate to prevent the belt from slipping and ensure that the rotating wheel can start normally. After the rotating wheel rotates and there is a speed difference between the rotating speed of the rotating wheel and the output speed of the gearbox, the clutch disconnects the gearbox from the rotating shaft, and the rotating wheel is driven to rotate only by the driving mechanism, thereby achieving the effect of saving energy.

[0006] As an improvement, at least one group of tensioning structures is connected to the frame, the tensioning structure includes a tensioning wheel, a slide rail and a driving member, the slide rail is connected to the frame, the tensioning wheel is slidably connected to the slide rail, the driving member is connected to the frame and drives the tensioning wheel to slide, and the tensioning wheel is against the belt; with this structure, the driving member drives the tensioning wheel to move so that the belt is tensioned to prevent the belt from slipping, and according to different working conditions, the driving member can drive the tensioning wheel to move to different positions to adjust the tension of the belt.

[0007] As an improvement, two sets of tensioning structures are connected to the frame, and the tensioning wheels in the two sets of tensioning structures are respectively against the belts on both sides of the power wheel; this structure is adopted to further prevent the belt from slipping.

[0008] As an improvement, the belt is a woven belt; with this structure, the woven belt can meet the requirements for belt length in application scenarios with large diameter wheels.

[0009] As an improvement, the diameter of the impeller is greater than or equal to 5m; with this structure, the torque output by the impeller of this size is greater and the economic benefit is higher.

[0010] As an improvement, the diameter of the impeller is greater than or equal to 10m; adopting this structure further improves the economic benefits.

[0011] As an improvement, one end of the rotating shaft is connected with a flange for connecting with a load.

[0012] As an improvement, the wrap angle α of the belt to the power wheel is greater than or equal to 120°; this structure further prevents the belt from slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a side view of the utility model.

[0014] Figure 2 It is the front view of the utility model.

[0015] Figure 3 for Figure 2 A partial enlarged view of part A in the middle.

[0016] Figure 4 It is a structural schematic diagram of the tensioning structure part in the utility model.

[0017] Figure numerals: 1. frame; 2. rotating wheel; 3. driving mechanism; 31. belt; 32. power wheel; 33. first motor; 4. initial starting auxiliary system; 41. second motor; 42. gearbox; 43. clutch; 5. rotating shaft; 6. tensioning structure; 61. tensioning wheel; 62. slide rail; 63. driving part; 7. flange; 8. starting inverter. DETAILED DESCRIPTION

[0018] The wheel type torque output device of the utility model is described in detail below with reference to the accompanying drawings.

[0019] like Figures 1 to 4 As shown, the wheel-type torque output device includes a frame 1, a rotating wheel 2, a driving mechanism 3 and an initial start-up auxiliary system 4. The rotating wheel 2 is rotatably connected to the frame 1 through a rotating shaft 5, that is, the rotating shaft 5 is rotatably connected to the frame 1, and the center of the rotating wheel 2 is connected to the rotating shaft 5 and rotates synchronously with the rotating shaft 5; Figure 1 and Figure 2 As shown, one end of the rotating shaft 5 is connected to a flange 7 for connecting to a load.

[0020] like Figure 1 and Figure 2 As shown, the driving mechanism 3 includes a belt 31, a power wheel 32 and a first motor 33. The power wheel 32 is rotatably connected to the frame 1. In this embodiment, the power wheel 32 is located at the lower right corner of the belt 31. The first motor 33 is connected to the frame 1 and drives the power wheel 32 to rotate. The first motor 33 is also connected to the starting inverter 8. The belt 31 is wound around the rotating wheel 2 and the power wheel 32. Figure 4 As shown, at least one set of tensioning structures 6 is connected to the frame 1, and the tensioning structure 6 includes a tensioning wheel 61, a slide rail 62 and a driving member 63. The slide rail 62 is connected to the frame 1, and the tensioning wheel 61 is slidably connected to the slide rail 62. The driving member 63 is connected to the frame 1 and drives the tensioning wheel 61 to slide, and the tensioning wheel 61 is against the belt 31; Figure 2 and Figure 4 As shown, in this embodiment, two sets of tensioning structures 6 are connected to the frame 1, and the tensioning wheels 61 in the two sets of tensioning structures 6 are respectively abutted against the belts 31 on both sides of the power wheel 32. Specifically, the tensioning wheels 61 in the two sets of tensioning structures 6 slide in the horizontal direction. Preferably, the tensioning wheels 61 are not only slidably connected to the slide rail 62, but also rotatably connected to the slide rail 62, and the driving member 63 is a hydraulic system.

[0021] like Figure 2 and Figure 3 As shown, the wrap angle α of the belt 31 to the power wheel 32 is greater than or equal to 120°. To prevent the belt 31 from slipping, the upper tension wheel 61 moves to the left, and the lower tension wheel 61 moves to the right, so that the wrap angle α of the belt 31 to the power wheel 32 increases. Conversely, the upper tension wheel 61 moves to the right, and the lower tension wheel 61 moves to the left, so that the wrap angle α of the belt 31 to the power wheel 32 decreases.

[0022] like Figure 1 As shown, the initial start assisting system 4 includes a second motor 41 , a gearbox 42 and a clutch 43 . The second motor 41 is connected to the frame 1 . The second motor 41 is connected to the clutch 43 via the gearbox 42 . The clutch 43 is connected to the rotating shaft 5 .

[0023] In this embodiment, the diameter of the wheel 2 is greater than or equal to 5m, preferably, the diameter of the wheel 2 is greater than or equal to 10m; and in order to meet the use requirements of the large diameter wheel 2, the length of the belt 31 also needs to be adaptively increased, so the belt 31 is a woven belt, and the width of the belt 31 is greater than 80cm to prevent the belt 31 from slipping.

[0024] The following is an example of a wheel 2 with a diameter of 10m, where the diameter of the shaft 5 is 0.5m. Therefore, the lever magnification is the radius of the wheel 2 ÷ the radius of the shaft 5, and the leverage multiple is 5m ÷ 0.25m = 20 times; the wheel 2 weighs 5000kg, and its gravity is about 50000N. The torque obtained by the gravity of the wheel 2 * the leverage multiple is 50000N * 20 = 1000000N, and the traction force driving the wheel 2 to rotate is the gravity of the wheel 2 ÷ (the radius of the wheel 2) ÷diameter of shaft 5), the required traction force is 50000N÷(5m÷0.5m)=5000N. From the above derivation formula, it can be obtained that for a runner 2 with a diameter of 10m and a weight of 5000kg, only 5000N of traction force is required to output 1000000N of torque, which greatly improves the output torque and has high economic benefits. The input traction force must be guaranteed to be above 5000N, and the load driven by the runner 2 must be below 1000000N.

[0025] The power wheel 32 is driven to rotate by the first motor 33 in the driving mechanism 3, and the power wheel 32 drives the rotating wheel 2 to rotate through the belt 31 to output a large torque. At the beginning of the rotation, the first motor 33 in the driving mechanism 3 and the second motor 41 in the initial starting auxiliary system 4 are started at the same time to drive the rotating wheel 2 to rotate. The second motor 41 is connected to the gearbox 42, which can output a large torque to achieve low speed and high torque. At the beginning of the rotation of the rotating wheel 2, the rotating wheel 2 is assisted to rotate, and the two tensioning wheels 61 are moved to a suitable tightness position to prevent the belt 31 from slipping, so as to ensure that the rotating wheel 2 can start normally. After the rotating wheel 2 rotates and there is a speed difference between the rotating speed of the rotating wheel 2 and the output speed of the gearbox 42, the clutch 43 disconnects the gearbox 42 from the rotating shaft 5, and the second motor 41 also stops. Only the driving mechanism 3 drives the rotating wheel 2 to rotate, so as to achieve the effect of saving energy. At this time, the positions of the two tensioning wheels 61 are appropriately adjusted to ensure that the tension of the belt 31 is appropriate, so that the overall normal operation of the device can be achieved.

[0026] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned one implementation mode, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

Claims

1. A wheel-type torque output device, characterized in that: The invention comprises a frame (1), a rotating wheel (2), a driving mechanism (3) and an initial start-up auxiliary system (4), wherein the rotating wheel (2) is rotatably connected to the frame (1) via a rotating shaft (5), the driving mechanism (3) comprises a belt (31), a power wheel (32) and a first motor (33), the power wheel (32) is rotatably connected to the frame (1), the first motor (33) is connected to the frame (1) and drives the power wheel (32) to rotate, the belt (31) is wound around the rotating wheel (2) and the power wheel (32), the initial start-up auxiliary system (4) comprises a second motor (41), a gearbox (42) and a clutch (43), the second motor (41) is connected to the frame (1), the second motor (41) is connected to the clutch (43) via the gearbox (42), and the clutch (43) is connected to the rotating shaft (5).

2. The wheel type torque output device according to claim 1, characterized in that: At least one set of tensioning structures (6) is connected to the frame (1), and the tensioning structure (6) comprises a tensioning wheel (61), a slide rail (62) and a driving member (63); the slide rail (62) is connected to the frame (1); the tensioning wheel (61) is slidably connected to the slide rail (62); the driving member (63) is connected to the frame (1) and drives the tensioning wheel (61) to slide; the tensioning wheel (61) abuts against the belt (31).

3. The wheel type torque output device according to claim 2, characterized in that: Two groups of tensioning structures (6) are connected to the frame (1), and the tensioning wheels (61) in the two groups of tensioning structures (6) respectively abut against the belts (31) on both sides of the power wheel (32).

4. The wheel type torque output device according to claim 1, characterized in that: The belt (31) is a woven belt.

5. The wheel type torque output device according to claim 1, characterized in that: The diameter of the rotating wheel (2) is greater than or equal to 5 m.

6. The wheel type torque output device according to claim 5, characterized in that: The diameter of the rotating wheel (2) is greater than or equal to 10 m.

7. The wheel type torque output device according to claim 1, characterized in that: One end of the rotating shaft (5) is connected to a flange (7) for connecting to a load.

8. The wheel type torque output device according to any one of claims 1 to 7, characterized in that: The wrap angle α of the belt (31) to the power wheel (32) is greater than or equal to 120°.

Images