Rowing machine comprehensive test bench

Abstract

The present invention provides a comprehensive test bench for rowing machines, relating to the field of rowing machine testing equipment. The present invention comprises a base, a frame, and a fixing device. A set of lower rails is fixed to the base, a guide device is provided above the lower rails, and a sliding frame is provided. The upper and lower ends of the sliding frame are slidably connected to the guide device and the lower rails, respectively. The sliding frame also includes a pushing device for pushing the sliding frame to slide. The sliding frame is provided with a seat cushion pressure plate, which is transmission-connected to a pressure-applying device for pushing the seat cushion pressure plate up and down and applying simulated pressure to the rowing machine seat. The sliding frame is provided with a handle fixing device for fixing the rowing machine handles, and the handle fixing device is fixedly connected to the sliding frame via a tension sensor. The present invention can test the service life of the rowing machine seat, handles, and the entire machine, and can also obtain data such as tension, speed, power, work, number of strokes, and stroke frequency, providing data support for the testing and production of rowing machines.

Description

Technical Field

[0001] The invention relates to the field of rowing machine testing equipment, in particular to a comprehensive test bench for rowing machines. Background Art

[0002] like Figure 1 The rowing machine is also known as rowing machine, rowing machine, rowing machine, rowing machine, ergometer, land rowing machine, indoor rowing machine, etc.

[0003] A rowing machine is a machine used for training purposes to simulate the motion of rowing on water. Indoor rowing has become a professional sport. Indoor rowing machines, also commonly known as ergometers (commonly known as ergos abroad), measure the amount of energy expended during exercise.

[0004] After the rowing machine was designed and prototyped, it was necessary to measure parameters such as tension, power, seat life, and overall machine life. However, there was no dedicated test device for rowing machines on the market, so a proprietary test device was required to measure these parameters. Summary of the Invention

[0005] The present invention provides a comprehensive test bench for rowing machines, which solves the problem that there is a lack of equipment for rowing machine performance testing in the existing market.

[0006] The technical solution of the present invention is achieved as follows:

[0007] The rowing machine comprehensive test bench includes a base, which is fixedly connected to a frame, and a fixing device for fixing the rowing machine is provided on the base. A group of parallel and spaced lower rails are also fixed on the base, and a guide device parallel to the lower rails is provided above the lower rails. The guide device is fixed to the frame and also includes a sliding frame, and the upper and lower ends of the sliding frame are respectively slidably connected to the guide device and the lower rails, and also includes a pushing device for pushing the sliding frame to slide along the guide device and the lower rails. The sliding frame is provided with a seat cushion pressure plate for pressing the rowing machine seat cushion, and the seat cushion pressure plate is transmission-connected with a pressure-applying device for pushing the seat cushion pressure plate up and down and applying simulated pressure to the rowing machine seat cushion. The sliding frame is provided with a handle fixing device for fixing the rowing machine handle, and the handle fixing device is fixedly connected to the sliding frame through a tension sensor, and the tension sensor is used to detect the tension of the fixed rowing machine handle.

[0008] As a further technical solution, the fixing device includes a fixed pressure plate and a fixing bolt. The lower end of the fixing bolt is rotatably connected to the rotating shaft seat through a rotating shaft. The rotating shaft seat is fixedly connected to the base. Side bolt grooves that cooperate with the fixing bolt are provided on both side ends of the fixed pressure plate, and a nut is provided on the fixing bolt.

[0009] As a further technical solution, the pushing device includes a screw rod, both ends of which are rotatably connected to the screw rod seat, the screw rod seat is fixedly connected to the frame, one end of the screw rod is transmission-connected to the rotating shaft of the servo motor, and the servo motor is electrically connected to the servo controller.

[0010] As a further technical solution, a speed sensor for detecting the sliding speed of the sliding frame is provided on the frame.

[0011] As a further technical solution, the guiding device is an upper guide rail, a slide rod or a guide plate, an upper slider is slidingly provided on the upper guide rail, the upper slider is fixedly connected to the upper end of the sliding frame, the slide rod is outer covered with a linear bearing, the linear bearing is fixed to the upper end of the sliding frame through a bearing seat, the guide plate is outer covered with a sliding sleeve, and the sliding sleeve is fixedly connected to the upper end of the sliding frame.

[0012] As a further technical solution, the pressure device is a vertically downward cylinder, the push rod of the cylinder is fixedly connected to the seat cushion pressure plate, and the cylinder body of the cylinder is fixedly connected to the sliding frame.

[0013] As a further technical solution, a group of longitudinal slide rods are fixed to the upper end of the seat cushion pressure plate, and a longitudinal linear bearing that cooperates with the longitudinal slide rods is fixed on the sliding frame. The cylinder is connected to an air pipe, and the air pipe is connected to an electromagnetic control valve and an electronic pressure gauge.

[0014] As a further technical solution, a travel switch or a proximity sensor is provided at the end of the lower sliding rail.

[0015] As a further technical solution, the handle fixing device includes an upper pressing block and a lower pressing block, which are fixed to each other by bolts. The lower pressing block is fixedly connected to the tension sensor. An upper arc-shaped handle groove is provided on the lower surface of the upper pressing block, and a lower arc-shaped handle groove is provided on the upper surface of the lower pressing block to cooperate with the upper arc-shaped handle groove.

[0016] As a further technical solution, a controller is also included, which is used to control the pushing device and the pressure device, and is also used to receive data from the tension sensor. The controller is electrically connected to a display screen, and the controller is an MCU, a single-chip microcomputer or a PLC.

[0017] Beneficial effects of the present invention:

[0018] 1. When the present invention is in operation, the rowing machine is fixed by the fixing device, the pressure-applying device pushes the seat cushion pressure plate downward to press on the rowing machine seat cushion and applies pressure to simulate human gravity, the handle fixing device fixes the rowing machine handle, and then the pushing device pushes the sliding frame to slide along the guide device and the lower slide rail to simulate the use process of the rowing machine. The service life of the rowing machine seat cushion and the rowing machine handle can be tested, and the durability and service life of the rowing machine as a whole can be tested.

[0019] 2. The tension data can be obtained through the tension sensor, and the speed of the driving slide can be read through the servo controller, or the speed sensor can also be used to obtain the speed of the slide. According to the formulas P=F*v and W=∑P*T, the power and work data can be obtained. The number of strokes within the detection time can be obtained through the travel switch or proximity sensor. The controller can obtain the stroke frequency data based on the time and the number of strokes. The electromagnetic control valve and electronic barometer can control the pressure of the seat pressure plate on the rowing machine seat to accurately simulate the human body's gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 Schematic diagram of the structure of a rowing machine;

[0022] Figure 2 It is a structural schematic diagram of the present invention;

[0023] Figure 3 for Figure 2 Schematic diagram of the structure after removing the shell plate and door body;

[0024] Figure 4 for Figure 3 Schematic diagram of the structure after removing the base and frame;

[0025] Figure 5 for Figure 4 Schematic diagram of the structure after removing the rowing machine;

[0026] Figure 6 for Figure 5 Structural diagram from another angle;

[0027] Figure 7 for Figure 5 The main view;

[0028] Figure 8 for Figure 5 Right view of;

[0029] Figure 9 is a structural diagram of the fixing device;

[0030] Figure 10 for Figure 6 Schematic diagram of the structure after removing the pushing device. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1-10 The rowing machine comprehensive test bench includes a base 11, a frame 12 is fixedly connected to the base 11, a fixing device 2 for fixing the rowing machine A1 is provided on the base 11, a set of parallel and spaced lower rails 3 are fixed on the base 11, and a guide device 4 parallel to the lower rail 3 is provided above the lower rail 3. The guide device 4 is fixed to the frame 12 and also includes a sliding frame 5. The upper and lower ends of the sliding frame 5 are respectively slidably connected to the guide device 4 and the lower rail 3. The lower end of the sliding frame 5 is slidably connected to the lower rail 3 through the lower slider 31. Then, it also includes a pushing device 6 for pushing the sliding frame 5 to slide along the guide device 4 and the lower slide rail 3. The sliding frame 5 is provided with a seat cushion pressure plate 7 for pressing the rowing machine seat A2. The seat cushion pressure plate 7 is transmission-connected to a pressure-applying device for pushing the seat cushion pressure plate up and down and applying simulated pressure to the rowing machine seat A2. The sliding frame 5 is provided with a handle fixing device 8 for fixing the rowing machine handle. The handle fixing device 8 is fixedly connected to the sliding frame 5 through a tension sensor 51. The tension sensor 51 is used to detect the tension of the rowing machine handle A3.

[0033] The side of the frame 12 is fixed with a shell plate 121 and a door body 122. The lower part of the sliding frame 5 is a U-shaped frame with an opening facing downward, and the upper part of the sliding frame 5 is a U-shaped frame with a vertical rod fixedly connected to the upper end.

[0034] As a further technical solution, the fixing device 2 includes a fixed pressure plate 21 and a fixing bolt 22. The lower end of the fixing bolt 22 is rotatably connected to the shaft seat 24 through a rotating shaft 23. The shaft seat 24 is fixedly connected to the base 11. Side bolt grooves 25 that cooperate with the fixing bolts are provided on both side ends of the fixed pressure plate 21. The side bolt grooves 25 are opened along the direction of the fixed pressure plate 21. The opening of the side bolt groove 25 faces the outer end surface for easy operation. A nut 26 is provided on the fixing bolt 22, and at least two blades 27 for facilitating rotation are fixed on the nut 26.

[0035] As a further technical solution, the driving device includes a screw (not shown), the two ends of which are rotatably connected to a screw seat, which is fixedly connected to the frame 12. One end of the screw is transmission-connected to the rotating shaft of a servo motor 61. The servo motor 61 is electrically connected to a servo controller (not shown). The servo motor 61 can be directly connected to the screw via a coupling or indirectly connected to the screw via a transmission mechanism such as a gear set. The servo controller can read the speed at which the sliding frame is driven to move. The principle is that the speed of the sliding frame 5 can be determined based on the speed of the servo motor 61 and the lead of the screw (i.e., the distance traveled in a linear direction during one rotation of the screw): speed = speed * lead of the screw.

[0036] Of course, the data of the speed v can also be obtained by specially arranging a speed sensor (not shown) on the frame 12 for detecting the sliding speed of the sliding frame 5 .

[0037] Combined with the tension data F obtained by the tension sensor, the power P and work W data can be obtained according to the formulas P=F*v and W=∑P*T.

[0038] As a further technical solution, the guide device 4 is an upper guide rail, a slide rod or a guide plate 41, an upper slider is slidably provided on the upper guide rail, the upper slider is fixedly connected to the upper end of the sliding frame 5, the slide rod is covered with a linear bearing, and the linear bearing is fixed to the upper end of the sliding frame 5 through a bearing seat, the guide plate 41 is covered with a sliding sleeve 42, and the sliding sleeve is fixedly connected to the upper end of the sliding frame 5.

[0039] As a further technical solution, the pressure-applying device is a vertically downward-pointing cylinder 71, the push rod of the cylinder 71 is fixedly connected to the seat cushion pressure plate 7, and the cylinder body of the cylinder 71 is fixedly connected to the sliding frame 5. In order to protect the rowing machine seat, a rubber layer or a silicone layer can be fixed to the bottom surface of the seat cushion pressure plate 7 to provide a buffering and protective effect.

[0040] As a further technical solution, a set of longitudinal slide bars 72 are fixed to the upper end of the seat cushion pressure plate 7. A longitudinal linear bearing that cooperates with the longitudinal slide bars 72 is fixed to the sliding frame 5. The cylinder 71 is connected to an air pipe, to which an electromagnetic control valve 72 and an electronic barometer 73 are connected. The addition of the longitudinal slide bars 72 and longitudinal linear bearings increases the stability of the seat cushion pressure plate 7 in its upward and downward movement. The electromagnetic control valve and electronic barometer can be used to control the pressure exerted by the seat cushion pressure plate on the rowing machine seat. Specifically, based on the pressure data P1 measured by the electronic barometer and the cross-sectional area S1 of the cylinder's piston, the pressure F1 = P1 * S1 can be obtained, accurately simulating human gravity.

[0041] As a further technical solution, a travel switch or proximity sensor 32 is provided at the end of the lower rail 3. The travel switch and proximity sensor 32, on the one hand, limit the range of movement of the carriage 5, and on the other hand, count the number of strokes per unit time. The time and number of strokes can be used to obtain the paddling frequency data.

[0042] As a further technical solution, the handle fixing device 8 includes an upper pressing block 81 and a lower pressing block 82. The upper pressing block 81 and the lower pressing block 82 are fixed by bolts. The lower pressing block 82 is fixedly connected to the tension sensor 51. The lower surface of the upper pressing block 81 is provided with an upper arc-shaped handle groove, and the upper surface of the lower pressing block 82 is provided with a lower arc-shaped handle groove that cooperates with the upper arc-shaped handle groove.

[0043] As a further technical solution, a controller 9 is also included. The controller 9 is used to control the pushing device and the pressure device, and is also used to receive data from the tension sensor 51. The controller is electrically connected to a display screen. Specifically, the controller 9 is also electrically connected to the tension sensor 51, the servo controller, the electromagnetic control valve 72, the electronic pressure gauge 73 and the proximity sensor 32 respectively. The servo controller can also be replaced with a speed sensor for electrical connection, and the proximity sensor 32 can also be replaced with a travel switch. The controller 9 is an MCU, a single-chip microcomputer or a PLC.

[0044] A bottom plate 13 for specifically fixing the fixing device 2 and the lower sliding rail 3 may also be added to the base 11 .

[0045] When the present invention is working, the rowing machine A1 is fixed by the fixing device, the pressure-applying device pushes the seat cushion pressure plate downward to press on the rowing machine seat cushion A2, and applies pressure to simulate the weight of a person, the handle fixing device fixes the rowing machine handle A3, and then the pushing device pushes the sliding frame 5 to slide along the guide device and the lower slide rail to simulate the use process of the rowing machine A1. The service life of the rowing machine seat cushion A2 and the rowing machine handle A3 can be tested, and the durability and service life of the entire rowing machine A1 can also be tested. In addition, data such as tension, speed, power, work, number of strokes and stroke frequency can be obtained, providing data support for the inspection and production of the rowing machine A1.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Rowing machine comprehensive test bench, characterized by: The cam is fixedly provided with a base, the cam being fixed with a frame, the base being provided with a fixing device for fixing the rowing machine, the base being further fixed with a group of parallel and spaced lower rails, the upper part of the lower rails being provided with a guide device parallel to the lower rails, the guide device being fixed to the frame, the cam being further provided with a sliding frame, the upper and lower ends of the sliding frame being slidably connected to the guide device and the lower rails respectively, the cam being further provided with a pushing device for pushing the sliding frame to slide along the guide device and the lower rails, the sliding frame being provided with a seat cushion pressure plate for pressing the seat cushion of the rowing machine, the seat cushion pressure plate being transmission-connected with a pressure-applying device for pushing the seat cushion pressure plate up and down and applying simulated pressure to the seat cushion of the rowing machine, the sliding frame being provided with a handle fixing device for fixing the handle of the rowing machine, the handle fixing device being fixedly connected to the sliding frame via a tension sensor, the tension sensor being used to detect the tension of the handle of the rowing machine; The frame is provided with a speed sensor for detecting the sliding speed of the sliding frame; The end of the lower sliding rail is provided with a travel switch or a proximity sensor.

2. The rowing machine comprehensive test bench according to claim 1, characterized in that: The fixing device includes a fixed pressure plate and a fixing bolt. The lower end of the fixing bolt is rotatably connected to the shaft seat through a rotating shaft. The shaft seat is fixedly connected to the base. Side bolt grooves that cooperate with the fixing bolt are opened on both side ends of the fixed pressure plate, and a nut is provided on the fixing bolt.

3. The rowing machine comprehensive test bench according to claim 1, characterized in that: The pushing device includes a screw rod, both ends of which are rotatably connected to a screw rod seat, the screw rod seat is fixedly connected to the frame, one end of the screw rod is transmission-connected to the rotating shaft of the servo motor, and the servo motor is electrically connected to a servo controller.

4. The rowing machine comprehensive test bench according to claim 1, wherein: The guide device is an upper guide rail, a slide bar or a guide plate; When the guide device is an upper guide rail, an upper slider is slidably provided on the upper guide rail, and the upper slider is fixedly connected to the upper end of the sliding frame; When the guide device is a slide rod, the slide rod is covered with a linear bearing, and the linear bearing is fixed to the upper end of the slide frame through a bearing seat; When the guide device is a guide plate, a sliding sleeve is disposed on the guide plate outer shell, and the sliding sleeve is fixedly connected to the upper end of the sliding frame.

5. The rowing machine comprehensive test bench according to claim 1, characterized in that: The pressure device is a vertically downward cylinder, a push rod of the cylinder is fixedly connected to the seat cushion pressure plate, and a cylinder body of the cylinder is fixedly connected to the sliding frame.

6. The rowing machine comprehensive test bench according to claim 5, characterized in that: A group of longitudinal slide bars are fixed to the upper end of the seat cushion pressure plate, and a longitudinal linear bearing matched with the longitudinal slide bars is fixed on the sliding frame. The cylinder is connected to an air pipe, and the air pipe is connected to an electromagnetic control valve and an electronic pressure gauge.

7. The rowing machine comprehensive test bench according to claim 1, characterized in that: The handle fixing device includes an upper pressing block and a lower pressing block, which are fixed to each other by bolts. The lower pressing block is fixedly connected to the tension sensor. An upper arc-shaped handle groove is provided on the lower surface of the upper pressing block, and a lower arc-shaped handle groove matching the upper arc-shaped handle groove is provided on the upper surface of the lower pressing block.

8. The rowing machine comprehensive test bench according to any one of claims 1 to 7, characterized in that: It also includes a controller, which is used to control the pushing device and the pressure device, and is also used to receive data from the tension sensor. The controller is electrically connected to a display screen, and the controller is an MCU or a PLC.

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