Mechanical force varying device

Abstract

The application provides a mechanical variable force device, and belongs to the technical field of mechanical transmission. The mechanical variable force device comprises a base, support columns, bearings, a first power shaft, a second power shaft, a variable force transmission mechanism and a driven gear. The support columns are vertically fixed on the base and are arranged in groups. The bearings are correspondingly installed on the top ends of the support columns. The first power shaft and the second power shaft are arranged in parallel and rotate on the support columns through the bearings. The variable force transmission mechanism is connected to the first power shaft and the second power shaft and is used for realizing rigid synchronous torque transmission of the two. The driven gear is fixedly installed on the first power shaft or the second power shaft and is used for meshing with an external driving gear to input power. The application is composed of the base, the support columns, two power shafts, two connectors, a rigid connecting rod and a driven gear, the number of parts is extremely small, there is no any complex synchronous mechanism, and the processing and assembling difficulty and manufacturing cost are greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of mechanical transmission technology, and in particular to a mechanical power-changing device. Background Technology

[0002] In mechanical transmission systems, the power conversion device is the core component for matching power with load, and it is widely used in many fields such as industrial automation equipment, agricultural machinery, construction machinery, and conveying equipment. Its main function is to convert the speed and torque output by the prime mover into the speed and torque required by the load to meet the power demands under different working conditions.

[0003] Currently, most mainstream mechanical power transmission devices on the market adopt a gearbox structure, which uses multiple sets of gears with different numbers of teeth to mesh and change the transmission ratio to achieve torque and speed conversion. Traditional gearboxes contain a large number of components such as gears, shafts, bearings, shift forks, synchronizers, and clutches. They require high machining precision and have complex assembly processes, resulting in high overall manufacturing costs. Therefore, a mechanical power transmission device is proposed. Summary of the Invention

[0004] In view of this, the present invention provides a mechanical power-changing device to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial alternative.

[0005] The technical solution of the present invention is implemented as follows: it includes a base, a support column, a bearing, a first power shaft, a second power shaft, a variable force transmission mechanism, and a driven gear; The support columns are provided in several groups and are vertically fixed on the base, and the bearings are correspondingly installed on the top of the support columns; The first power shaft and the second power shaft are arranged in parallel and rotate on the support column via the bearing; The variable force transmission mechanism is connected to the first power shaft and the second power shaft to achieve rigid synchronous torque transmission between the two; the variable force transmission mechanism includes a first connector, a second connector and a connecting rod; the first connector is fixed to one end of the first power shaft, the second connector is fixed to one end of the second power shaft, and the two ends of the connecting rod are fixedly connected to the first connector and the second connector; The driven gear is fixedly mounted on the first or second power shaft and is used to mesh with the external driving gear to input power.

[0006] More preferably, both the first connector and the second connector are U-shaped frame structures, and their open ends are arranged opposite each other.

[0007] More preferably, the rotation radius of the first connector is greater than that of the second connector.

[0008] More preferably, the rotation center of the first connector coincides with the axis of the first power shaft, and the rotation center of the second connector coincides with the axis of the second power shaft.

[0009] More preferably, the bearing is a rolling bearing, with its inner ring fixedly connected to the corresponding first or second power shaft, and its outer ring fixedly connected to the corresponding support column.

[0010] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions: I. This invention consists of only a base, a support column, two power shafts, two connectors, a rigid connecting rod, and a driven gear. The number of parts is extremely small, and there are no complex synchronization mechanisms, which greatly reduces the difficulty of processing and assembly and the manufacturing cost.

[0011] Second, this invention utilizes the principle of unequal-arm levers to achieve torque transformation, with no transmission error, and stable and controllable output torque and speed. The variable force ratio can be precisely designed according to requirements. By selecting the installation position of the driven gear during assembly, two output characteristics, namely torque amplification or torque reduction, can be easily obtained without changing other structures of the device, and can quickly respond to the power requirements of different loads.

[0012] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the present invention.

[0015] Reference numerals: 1. Base; 2. Support column; 3. Bearing; 41. First power shaft; 42. Second power shaft; 5. First connector; 6. Second connector; 7. Connecting rod; 8. Driven gear. Detailed Implementation

[0016] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0017] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0018] Example: like Figure 1 As shown, this embodiment of the invention provides a mechanical power-changing device, including a base 1, four support columns 2, four bearings 3, a first power shaft 41, a second power shaft 42, a power-changing transmission mechanism, and a driven gear 8.

[0019] The base 1 has sufficient strength and stability to support the weight of the entire device; four support columns 2 are vertically welded and fixed to the upper surface of the base 1 in a rectangular array, with two support columns 2 located on the right side of the base 1 to support the first power shaft 41; and the other two support columns 2 located on the left side of the base 1 to support the second power shaft 42.

[0020] Each support column 2 has a bearing mounting hole at its top, and the bearings 3 are installed in the corresponding bearing mounting holes. The first power shaft 41 passes horizontally through the inner rings of the two bearings 3 on the right side, and the second power shaft 42 passes horizontally through the inner rings of the two bearings 3 on the left side. The axes of the first power shaft 41 and the second power shaft 42 are parallel to each other and located in the same horizontal plane.

[0021] The variable power transmission mechanism is located between the first power shaft 41 and the second power shaft 42; the variable power transmission mechanism includes a first connector 5, a second connector 6 and a connecting rod 7; the first connector 5 and the second connector 6 are U-shaped frame structures, and their rotation centers coincide with the axis of the first power shaft 41 and the axis of the second power shaft 42; the open ends of the first connector 5 and the second connector 6 are arranged opposite to each other.

[0022] The connecting rod 7 is provided in two sets. One end is welded and fixed to the first connector 5, and the other end is welded and fixed to the second connector 6, thereby rigidly connecting the first connector 5 and the second connector 6 into a whole. The overall rotation center of the variable force transmission mechanism is coplanar with the axis of the first power shaft 41 and the second power shaft 42 to ensure force balance and smooth operation during transmission. The rotation radius R of the first connector 5 is greater than the rotation radius r of the second connector 6, and R=2r.

[0023] Driven gear 8 is used to mesh with the driving gear driven by an external motor to input power; depending on the actual working conditions, driven gear 8 can be fixedly installed on the second power shaft 42 or fixedly installed on the first power shaft 41 during device assembly.

[0024] Since the first connector 5, the second connector 6, and the connecting rod 7 are rigidly connected as a whole, when one of the connectors rotates, the other connector will rotate synchronously, and the force at each point on the connecting rod 7 is equal.

[0025] Specifically, the second power shaft 42 is the input shaft, and the first power shaft 41 is the output shaft. The device performs torque amplification, and the output torque is equal to the input torque. The output torque is twice the input torque. The first power shaft 41 is the input shaft, and the second power shaft 42 is the output shaft, realizing the torque reduction function, with the output torque being equal to the input torque. The output torque is twice that of the input torque, which is 1 / 2 of the input torque.

[0026] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A mechanical power-changing device, characterized in that, It includes a base (1), a support column (2), a bearing (3), a first power shaft (41), a second power shaft (42), a variable force transmission mechanism, and a driven gear (8); The support column (2) is provided in several groups and (2) is vertically fixed on the base (1), and the bearing (3) is installed on the top of the support column (2); The first power shaft (41) and the second power shaft (42) are arranged in parallel and rotate on the support column (2) through the bearing (3); The variable power transmission mechanism is connected to the first power shaft (41) and the second power shaft (42) to realize the rigid synchronous torque transmission between the two; the variable power transmission mechanism includes a first connector (5), a second connector (6) and a connecting rod (7); the first connector (5) is fixed to one end of the first power shaft (41), the second connector (6) is fixed to one end of the second power shaft (42), and the two ends of the connecting rod (7) are fixedly connected to the first connector (5) and the second connector (6); The driven gear (8) is fixedly installed on the first power shaft (41) or the second power shaft (42) for meshing with the external driving gear to input power.

2. The mechanical power-changing device according to claim 1, characterized in that, Both the first connector (5) and the second connector (6) are U-shaped frame structures, and their open ends are arranged opposite each other.

3. The mechanical power-changing device according to claim 2, characterized in that, The rotation radius of the first connector (5) is greater than that of the second connector (6).

4. A mechanical power-changing device according to claim 3, characterized in that, The rotation center of the first connector (5) coincides with the axis of the first power shaft (41), and the rotation center of the second connector (6) coincides with the axis of the second power shaft (42).

5. A mechanical power-changing device according to claim 4, characterized in that, The bearing (3) is a rolling bearing, with its inner ring fixedly connected to the corresponding first power shaft (41) or second power shaft (42), and its outer ring fixedly connected to the corresponding support column (2).

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