A swing life test device for a scrubber

Abstract

The utility model relates to a kind of floor washing machine swing life testing device, comprising: pedestal;Main body, is located on pedestal;Main body includes drive source, and the output end connection of drive source's rotating shaft, one end and the main rotating rod of rotating shaft connection, and the slider of main rotating rod sliding connection, one end and the connecting rod of slider connection and the clamping assembly of the other end of connecting rod connection;Clamping assembly is used to clamp the hand-held part of floor washing machine;At least one second pressing part, is located on pedestal, for pressing the main machine of floor washing machine.The utility model effectively expands the swing angle range of testing device, can accurately simulate the extreme use condition of floor washing machine.Modular design significantly reduces the volume and weight of equipment, simplifies installation and commissioning process, realizes the quick switching test of different models of floor washing machine.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, and in particular to a device for testing the swing life of a floor scrubber. Background Technology

[0002] The twisting and swinging motions of a floor scrubber mainly rely on the coordinated action of four core components: the overall structure, the handle, the body pivot, and the floor brush pivot. The functional characteristics and failure risks of each component directly determine the product's lifespan.

[0003] Among them, the handle assembly is the core component of human-computer interaction. Users control the cleaning direction by twisting the handle (the angle of a single twist is about ±45°) and switch functions by pressing the handle. Its internal rotating structure (such as damping shaft and buckle connection) needs to withstand repeated torsional torque. If the durability is insufficient, the handle may become loose, the control may fail, or it may even break suddenly during use, posing a safety hazard.

[0004] Existing floor scrubber durability testing equipment has significant technical shortcomings in practical applications, mainly reflected in two core issues: Firstly, the rotation range is significantly limited. Most devices can only cover ±30°-±40° of the torsion angle, while in real-world use scenarios (such as cleaning narrow corners and under furniture), the torsion angle between the handle and the body of a floor scrubber often reaches ±45°-±60°, and the adaptive swing range of the floor brush shaft also needs to cover ±10°-±15°. The insufficient rotation range of the device makes it impossible to fully simulate extreme usage conditions, thus making it difficult to accurately capture the stress changes and fatigue failure risks of key components at extreme angles, greatly reducing the authenticity and validity of the test results. Secondly, the rotating frame design is too large and cumbersome. To achieve simultaneous testing of multiple components, some equipment has a frame size of more than 1.5m × 2m and a weight of more than 50kg. This not only occupies a lot of laboratory space, but also makes the installation and fixing process extremely cumbersome. It requires 3-4 people to work together to move and position the machine, and the body, handle and rotating shaft can only be aligned and fixed with the help of hoisting equipment or special clamps. A single installation and debugging takes more than 2 hours. Moreover, if it is necessary to change to a different model of floor scrubber during the test (such as switching from a vertical floor scrubber to a horizontal floor scrubber), the frame structure must be disassembled and adjusted again, which further extends the test preparation cycle and seriously affects the test efficiency.

[0005] More importantly, these two problems can also create a chain of negative effects: insufficient rotation range forces testers to complete the verification only through "derating tests" (i.e., reducing the torsion / swing angle), which may mask early failures that should appear in actual use; and the large rotating frame is prone to stability deviations in high-frequency test cycles. Even slight shaking of the frame can change the direction of force application, resulting in uneven stress distribution on the handle and shaft. This may cause test data distortion and may also cause unexpected damage to the test piece due to additional stress impact, increasing test costs and error risks, and failing to provide reliable data support for the durability design of key components of the floor scrubber. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model discloses a floor scrubber swing life testing device.

[0007] The technical solution adopted in this utility model is as follows: A floor scrubber swing life testing device, comprising: Base; The main body is mounted on the base; the main body includes a drive source, a rotating shaft connected to the output end of the drive source, a main rotating rod connected to the rotating shaft at one end, a slider slidably connected to the main rotating rod, a connecting rod connected to the slider at one end, and a clamping assembly connected to the other end of the connecting rod; the clamping assembly is used to clamp the handheld part of the floor scrubber; At least one second clamping element is disposed on the base for clamping the main unit of the floor scrubber.

[0008] In one embodiment of this utility model, the drive source includes a servo motor and a right-angle reducer connected to the output end of the servo motor; the output end of the right-angle reducer is connected to the rotating shaft.

[0009] In one embodiment of this utility model, the main body further includes two bearing seats; the two ends of the rotating shaft are respectively rotatably engaged with the bearing seats.

[0010] In one embodiment of this utility model, the main body further includes a base plate; the drive source and the bearing seat are both mounted on the base plate.

[0011] In one embodiment of the present invention, the main body further includes a first support fixed to the base; the first support supports the base plate and is used to adjust the height of the base plate.

[0012] In one embodiment of this utility model, the clamping assembly includes a handle head rotating seat, a first clamping member, and a clamping block; the other end of the connecting rod is connected to the handle head rotating seat; the first clamping member is fixed to the handle head rotating seat; the distance between the clamping block and the handle head rotating seat can be adjusted by the first clamping member; the working end of the first clamping member faces the clamping block.

[0013] In one embodiment of the present invention, a second support seat is further included, which is fixed on the base; the second support seat supports the second clamping member and is used to adjust the height of the second clamping member.

[0014] In one embodiment of the present invention, a detection element is further provided near the main rotating rod; the detection element is used to provide the origin position of the main rotating rod during each swing cycle.

[0015] In one embodiment of the present invention, the detection element includes a fixing plate and a proximity switch mounted on the fixing plate.

[0016] In one embodiment of the present invention, a counterweight is included; the counterweight is placed on the base.

[0017] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art: The floor scrubber swing life testing device described in this invention effectively expands the swing angle range of the testing device, enabling accurate simulation of extreme operating conditions of the floor scrubber. The modular design significantly reduces the size and weight of the equipment, simplifies the installation and commissioning process, and allows for rapid switching testing between different models of floor scrubbers.

[0018] The floor scrubber swing life testing device of this utility model uses a dual-point fixing method, which fixes the floor scrubber by means of a first clamping member and a second clamping member. This ensures the stability of the test while avoiding the application of additional stress to the tested equipment, thus ensuring the accuracy and reliability of the test data. Attached Figure Description

[0019] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the structure of the floor scrubber swing life testing device in this utility model.

[0021] Figure 2 This is a side view of the floor scrubber swing life testing device of this utility model.

[0022] Figure 3This is a schematic diagram of the floor scrubber swing life testing device rotating 45° in this utility model.

[0023] Figure 4 This is a schematic diagram of the floor scrubber swing life testing device rotating 90° in this utility model.

[0024] Explanation of reference numerals in the instruction manual: 10. Base; 20. Main body; 201. Main rotating rod; 202. Slider; 203. Connecting rod; 204. Right angle reducer; 205. Base plate; 206. First support seat; 207. Bearing seat; 208. First clamping element; 209. Handle rotating seat; 210. Servo motor; 30. Clamping block; 40. Second clamping element; 50. Second support seat; 60. Counterweight block; 70. Floor scrubber; 80. Detection element; 801. Proximity switch; 802. Fixing plate. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0026] The foregoing and other technical contents, features, and effects of this utility model will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front, or back, are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the present utility model. Furthermore, in all embodiments, the same reference numerals denote the same elements.

[0027] Existing technologies for floor scrubber durability testing equipment suffer from two major technical bottlenecks: limited rotation range and bulky frame structure. Traditional testing devices cannot cover the extreme operating conditions of ±45° to ±60° in actual use, making it impossible to effectively detect the fatigue failure risk of critical components under extreme conditions. Furthermore, the bulky integrated frame structure requires multiple people and hoisting equipment for installation, and the frame needs to be readjusted when changing test models, significantly reducing testing efficiency.

[0028] To address these issues, researchers discovered that the insufficient rotation amplitude stemmed from a design flaw in the transmission mechanism, while the bulky frame was related to the monolithic structure. By analyzing the actual usage scenarios of the floor scrubber, they proposed a modular base combined with an adjustable transmission mechanism, separating the drive system from the fixing device. The connection between the main rotating rod and the slider was optimized to form an adjustable swing amplitude linkage mechanism, while multi-point fixation was achieved through independently set clamping components.

[0029] Combination Figure 1 and Figure 2 A floor scrubber swing life testing device includes a base 10, a main body 20 disposed on the base 10, and at least one second clamping member 40 disposed on the base 10. The main body 20 is used to clamp the handle of the floor scrubber 70 and drive the handle of the floor scrubber 70 to swing. The second clamping member 40 is used to clamp the main body of the floor scrubber 70.

[0030] Among them, the base 10 refers to the basic platform that supports each functional module. Specifically, it can be realized by a steel plate welded frame structure to provide stable support for the testing device.

[0031] The main body 20 includes a base plate 205, a drive source mounted on the base plate 205, a rotating shaft connected to the output end of the drive source, a main rotating rod 201 connected to the rotating shaft at one end, a slider 202 slidably connected to the main rotating rod 201, a connecting rod 203 connected to the slider 202 at one end, and a clamping assembly connected to the other end of the connecting rod 203. The clamping assembly is used to clamp the handheld part of the floor scrubber 70. Specifically, the drive source includes a servo motor 210 and a right-angle reducer 204 connected to the output end of the servo motor 210. The output end of the right-angle reducer 204 is connected to the rotating shaft. The rotational motion output by the servo motor 210 is transmitted to the rotating shaft via the right-angle reducer 204. The right-angle reducer 204 converts the horizontal output axis of the servo motor 210 into a vertical direction, making the overall structure of the drive system more compact and reducing the space occupied by the test device. The high-precision control capability of the servo motor 210 allows the swing angle of the main rotating rod 201 to be precisely adjusted to ±45° or more as required for the actual use of the floor scrubber. The reduction ratio and torque amplification characteristics of the right-angle reducer 204 ensure that the rotating shaft maintains stable power output during continuous swing, avoiding test angle deviation caused by load fluctuations.

[0032] The clamping assembly includes a handle rotation seat 209, a first clamping member 208, and a clamping block 30. The other end of the connecting rod 203 is connected to the handle rotation seat 209. The first clamping member 208 is fixed to the handle rotation seat 209. The distance between the clamping block 30 and the handle rotation seat 209 can be adjusted by the first clamping member 208. The functional end of the first clamping member 208 faces the clamping block 30. When the handheld part of the floor scrubber 70 is placed between the clamping block 30 and the handle rotation seat 209, the end of the first clamping member 208 applies vertical pressure to the clamping block 30, forcing the handle rotation seat 209 to move in a direction close to the clamping block 30 until it is completely in contact with the surface of the handheld part of the floor scrubber 70. During testing, the swing of the connecting rod 203 is transmitted to the clamping assembly through the handle rotation seat 209, causing it to rotate synchronously with the torsional angle of the handheld part of the floor scrubber 70, avoiding unnatural force caused by mismatch between the clamping assembly and the handheld part's movement trajectory. The component is designed to allow operators to quickly match different handheld sizes by adjusting the position, without having to change the clamping parts.

[0033] In this embodiment, both the first clamping member 208 and the second clamping member 40 can be elbow clamps.

[0034] Furthermore, the main body 20 also includes two bearing seats 207 mounted on the base plate 205. Both ends of the rotating shaft are rotatably engaged with the bearing seats 207. The bearing seats 207 can be implemented using metal seats with rolling bearings, and are fixed to the base plate 205 with bolts to form rigid support. The rotatable engagement of both ends of the rotating shaft with the bearing seats 207 means that the shaft ends of the rotating shaft form a rotatable mechanical connection with the bushings or bearings inside the bearing seats 207. Specifically, a clearance fit or transition fit can be used to achieve low-friction rotation. In particular, during the oscillation test, the rotating shaft bears the periodic radial load from the main rotating rod 201. Through the symmetrical arrangement of the bearing seats 207 at both ends, the load of the rotating shaft is evenly distributed to the two support points, avoiding localized stress concentration caused by unilateral support. Simultaneously, the bearing seats 207 at both ends provide axial constraint to the rotating shaft, suppressing shaft offset caused by fluctuations in the output torque of the drive source, thereby reducing frame vibration during the oscillation of the main rotating rod 201.

[0035] Furthermore, the main body 20 also includes a first support 206 fixed to the base 10. The first support 206 supports the base plate 205 and is used to adjust the height of the base plate 205. By changing the height of the base plate 205, it can adapt to the installation requirements of floor scrubbers of different sizes, avoiding structural disassembly and assembly problems caused by the fixed frame.

[0036] Furthermore, the floor scrubber swing life testing device also includes a second support 50 fixed on the base 10. The second support 50 supports the second clamping member 40 and is used to adjust the height of the second clamping member 40. It should be noted that this embodiment has two second clamping members 40, and each second clamping member 40 is installed on a corresponding second support 50. The second clamping member 40 changes the position of the force application point in the testing device through the height adjustment function, so that the clamping force is precisely applied to the center of gravity area of ​​the main unit of the floor scrubber 70. Specifically, when testing different models of floor scrubbers 70, the operator does not need to replace the second clamping member 40, but only needs to replace the second support 50 and then adjust the second clamping member 40 to the corresponding height to complete the main unit positioning, achieving rapid adaptation while ensuring test stability.

[0037] Furthermore, the floor scrubber swing life testing device also includes a detection element 80 positioned near the main rotating rod 201. The detection element 80 provides the origin position of the main rotating rod 201 during each swing cycle. Specifically, the detection element 80 includes a fixed plate 802 and a proximity switch 801 mounted on the fixed plate 802. The proximity switch 801 generates an electrical signal by sensing the main rotating rod 201, thereby determining the initial position of the main rotating rod 201. The origin position refers to the reference starting point of the swing cycle of the main rotating rod 201, which can be achieved by the proximity switch 801 periodically outputting a position calibration signal. When the main rotating rod 201 moves to the set origin, the proximity switch 801 triggers a signal output, providing an absolute position reference for subsequent swing angle calculations. Specifically, the proximity switch 801 is arranged near the starting point of the swing trajectory of the main rotating rod 201. When the main rotating rod 201 completes a single swing and returns to its initial position, the proximity switch 801 and the main rotating rod 201 form an effective sensing area, at which point an origin position signal is generated. This signal can then be transmitted to the control system to reset the swing angle counter value, eliminating cumulative errors caused by mechanical transmission backlash or component wear. Compared with existing technologies, traditional testing devices lack an origin position feedback mechanism. After long-term operation, the actual swing angle of the main rotating rod will gradually deviate from the set value, causing test data distortion. The floor scrubber swing life testing device provided by this utility model ensures that the main rotating rod 201 always starts swinging from a precise initial position through periodic origin calibration, effectively suppressing the cumulative effect of angle deviation and ensuring that the load direction applied to the floor scrubber 70 during the test is consistent with the actual working conditions.

[0038] Furthermore, the floor scrubber oscillation life testing device also includes a counterweight 60 placed on the base 10. The counterweight 60 is a modular component that balances the dynamic inertia of the device by adjusting the mass distribution. It can be made of cast iron or steel, and its weight and quantity can be flexibly configured according to the load characteristics of the testing device. The contact surface between the counterweight 60 and the base 10 can be provided with positioning grooves or anti-slip textures to ensure that no displacement occurs during the test.

[0039] Combination Figure 3 and Figure 4 The working principle of this utility model is as follows: The floor scrubber 70 is manually placed on the base 10, at which point the floor scrubber 70 should be in an upright position. The slider 202 fixed to the main rotating rod 201 is released by the first clamping member 208, allowing the slider 202 to slide freely along the main rotating rod 201. Then, the first clamping member 208 clamps the handle of the floor scrubber 70, thereby locking the slider 202 to the main rotating rod 201. Finally, the main body of the floor scrubber 70 is fixed by the second clamping member 40.

[0040] The floor scrubber 70 is driven to oscillate by a servo motor 210 and a right-angle reducer 204 until a preset rotation angle is reached. Figure 3 The rotation angle shown is 45° or as follows Figure 4 The rotation angle shown is 90°. The oscillation life of the floor scrubber is verified based on the set number of cycles.

[0041] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A walk-behind scrubber oscillation life test device, characterized by, include: Base (10); The main body (20) is disposed on the base (10); the main body (20) includes a drive source and a rotating shaft connected to the output end of the drive source, a main rotating rod (201) connected to the rotating shaft at one end, a slider (202) slidably connected to the main rotating rod (201), a connecting rod (203) connected to the slider (202) at one end, and a clamping assembly connected to the other end of the connecting rod (203); the clamping assembly is used to clamp the handheld part of the floor scrubber (70); At least one second clamping element (40) is provided on the base (10) for clamping the main body of the floor scrubber (70).

2. The floor scrubber oscillation life testing device according to claim 1, characterized in that, The drive source includes a servo motor (210) and a right-angle reducer (204) connected to the output end of the servo motor (210); the output end of the right-angle reducer (204) is connected to the rotating shaft.

3. The floor scrubber oscillation life testing device according to claim 1, characterized in that, The main body (20) also includes two bearing seats (207); the two ends of the rotating shaft are respectively rotatably engaged with the bearing seats (207).

4. The floor scrubber oscillation life testing device according to claim 3, characterized in that, The main body (20) also includes a base plate (205); the drive source and the bearing housing (207) are both mounted on the base plate (205).

5. The floor scrubber oscillation life testing device according to claim 4, characterized in that, The main body (20) also includes a first support (206) fixed to the base (10); the first support (206) supports the base plate (205) and is used to adjust the height of the base plate (205).

6. The floor scrubber oscillation life testing device according to claim 1, characterized in that, The clamping assembly includes a handle head rotating seat (209), a first clamping member (208), and a clamping block (30); the other end of the connecting rod (203) is connected to the handle head rotating seat (209); the first clamping member (208) is fixed to the handle head rotating seat (209); the distance between the clamping block (30) and the handle head rotating seat (209) can be adjusted by the first clamping member (208); the working end of the first clamping member (208) faces the clamping block (30).

7. The floor scrubber oscillation life testing device according to claim 1, characterized in that, It also includes a second support (50) fixed to the base (10); the second support (50) supports the second clamping member (40) and is used to adjust the height of the second clamping member (40).

8. The floor scrubber oscillation life testing device according to claim 1, characterized in that, It also includes a detection element (80) disposed near the main rotating rod (201); the detection element (80) is used to provide the origin position of the main rotating rod (201) during each swing cycle.

9. The floor scrubber oscillation life testing device according to claim 8, characterized in that, The detection element (80) includes a fixed plate (802) and a proximity switch (801) mounted on the fixed plate (802).

10. The floor scrubber oscillation life testing device according to claim 1, characterized in that, It also includes a counterweight (60); the counterweight (60) is placed on the base (10).

Images