CN110455564B - Performance simulation detection method and device for electric push rod for functional sofa - Google Patents
Performance simulation detection method and device for electric push rod for functional sofa Download PDFInfo
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- CN110455564B CN110455564B CN201910730096.XA CN201910730096A CN110455564B CN 110455564 B CN110455564 B CN 110455564B CN 201910730096 A CN201910730096 A CN 201910730096A CN 110455564 B CN110455564 B CN 110455564B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/001—Testing of furniture, e.g. seats or mattresses
Abstract
The invention discloses a performance simulation detection method and a performance simulation detection device of an electric push rod for functional sofa, wherein the electric push rod to be detected is arranged on a simulation sofa support, a pull rope type displacement sensor is arranged, the electric push rod stretches to drive a pull rope of the pull rope type displacement sensor to stretch, and the axis of the pull rope is parallel to the axis of the electric push rod and has the same height with the axis of the electric push rod; placing a simulation counter weight for fixing a counter weight for simulating a real human body on a simulation sofa support to form a human-shaped simulation test load configured and fixed on a simulation function sofa; applying a detection current acquisition frequency of more than 30Hz to the electric push rod, and detecting to obtain comparison data before and after detection of the electric push rod on the simulation function sofa, wherein the comparison data before and after detection comprises current data of all time periods and push rod stroke data corresponding to each current data. The invention is convenient for more pertinently improving and lifting the electric push rod.
Description
Technical Field
The invention relates to an electric push rod for a functional sofa, in particular to a performance simulation detection method and a performance simulation detection device for the electric push rod for the functional sofa, which are used for performing maximum simulation on the product performance of the electric push rod for the functional sofa under the condition of customer use.
Background
Along with the change and development of modern social economy and life, more and more functional sofas gradually replace conventional common sofas to enter people's life or sight, and the functional sofas usually adopt an electric push rod to control a connecting rod mechanism of the functional sofas to change actions, so that people sit on the sofas, and can realize the unfolding of the electric push rod to change the sitting posture of the sofas into a lying posture only by pressing an operation button, and a backrest is put down and legs are lifted up for the comfortable lying of people, so that the use comfort of the sofas used by people is better adjusted; some functional sofas are designed more for the elderly to use: the old man lies the back on the sofa, presses another operating button, and electric putter will lean against the cushion and lift up, the shank puts down to lift up the old man's hip so that the old man gets up, the travelling comfort is used with higher humanized experience to better improvement old man's sofa.
All the above require that the function sofa all need to realize the linkage action such as opening or the return of function sofa with the help of electric putter. The working stability and reliability of the electric push rod are directly related to the use comfort of the functional sofa because the working of the functional sofa can not be separated from the linkage work of the electric push rod; in the past, only the electric push rod is matched with the fixed load to detect the service life, but the real use condition of a customer is not well simulated, a more targeted product lifting design cannot be better obtained, and the market occupation is not facilitated to be better and stably.
Disclosure of Invention
The invention aims to provide a method and a device for simulating and detecting the performance of an electric push rod for functional sofa, which can simulate the actual use and better aim at improving and designing the product.
The invention adopts the following specific technical scheme for solving the technical problems: a performance simulation detection method of an electric push rod for functional sofa is characterized by comprising the following steps: comprises the following detection steps
a. The method comprises the following steps of installing an electric push rod to be tested on a simulated sofa support, installing a pull rope type displacement sensor, stretching the electric push rod to drive a pull rope of the pull rope type displacement sensor to stretch, wherein the axis of the pull rope is parallel to the axis of the electric push rod and has the same height as the axis of the electric push rod;
b. placing a simulation counter weight for fixing a counter weight for simulating a real human body on a simulation sofa support to form a human-shaped simulation test load configured and fixed on a simulation function sofa;
c. applying a detection current acquisition frequency of more than 30Hz to the electric push rod, and detecting to obtain comparison data before and after detection of the electric push rod on the simulation function sofa, wherein the comparison data before and after detection comprises current data of all time periods and push rod stroke data corresponding to each current data;
the current data comprise interval maximum current values, minimum current values and average current values, and push rod push-out displacement values corresponding to all current data test values are detected and obtained.
Time data, current data and push rod journey number when accomplishing once flexible (function sofa accomplishes once using, becomes to lie by sitting and resets again for sitting) through obtaining electric putter at every turn to through calculation and contrast with the test of carrying out load capacity, fatigue life, operating efficiency, so that the measurement personnel carry out the feedback of various functions, so that the designer improves the part that fails to reach the settlement requirement, so that adopted electric putter's function sofa travelling comfort is better, the use of functional sofa is more convenient. The simulation sofa support can directly adopt the support of the existing functional sofa, and can be designed aiming at the connecting mechanism of the support of the functional sofa, so that the connecting rod mechanism of the simulation sofa support is the same as that of the functional sofa and has smaller volume. The simulation current detection and the push rod push-out displacement value are improved, and a better simulation detection and improvement effect is obtained.
Preferably, the simulation counterweight adopts a three-part simulation counterweight mode, the three parts of simulation counterweight are respectively correspondingly positioned at the positions of the head area or the backrest area, the cushion area and the large and small leg supporting areas of the simulation sofa support, and the three parts of simulation counterweight jointly simulate and form a human-shaped simulation test load configured and fixed on the simulation function sofa. The three simulation counter weights are used for simulating the humanoid counter weight so as to realize real simulation, and compared with the humanoid counter weight simulation, the three counter weights are respectively fixed with all parts of the simulation sofa support, so that the three counter weights are not easy to shake, and the detection data is more accurate.
Preferably, the counterweight proportion of the three parts of simulated counterweights is 3:7:2, wherein 3 parts of counterweights are correspondingly and fixedly arranged at the head or back area of the simulated sofa support, 7 parts of counterweights are correspondingly and fixedly arranged at the cushion area of the simulated sofa support, and 2 parts of counterweights are correspondingly and fixedly arranged at the large and small leg supporting areas of the simulated sofa support. The actual use conditions of different customer groups are simulated to a greater extent, and a better simulation detection effect and a targeted improvement effect are obtained.
Preferably, the pre-and post-detection comparison data includes speed data for all time periods, and the speed data includes a maximum speed, a minimum speed and an average speed for operation within a specified time period. The simulation speed data detection and the push rod push-out displacement value are improved, and a better simulation detection improvement effect is obtained. The speed is the stroke of the electric push rod divided by the time.
Preferably, the operation test times of the electric push rod are more than 10000 times; the accuracy of the rope type displacement sensor is +/-0.05% FS, and the repetition accuracy of the pull rope type displacement sensor is +/-0.03% FS. The reliability, stability and effectiveness of simulation detection are improved, the detection accuracy is improved, and the authenticity of the obtained targeted improved design data is improved.
Preferably, the current data and the speed data are displayed on a human-computer interaction interface in real time and are synchronously stored in a data storage unit. The intuitive and effective convenience of the simulation detection operation is improved.
Preferably, the average current value is that the current value collected per second is greater than 50 points, the current values obtained by collection are averaged to obtain a data value, and the maximum current value and the minimum current value in the interval are obtained by comparing the collected current values greater than 50 points; collecting current value current collection was performed using a current transmitter. The validity of the analog current detection data is improved, and a better analog detection improvement effect is obtained.
Preferably, the electric push rod adopts a PLC test control system to control the circular operation of the electric push rod, and parameter data obtained by controlling operation detection are synchronously stored in a data storage unit through a human-computer interface; the electric push rod operation test comprises the cycle operation of the electric push rod in three states of extending outwards, keeping the push rod extending outwards for a period of time and contracting the electric push rod, and when the electric push rod operation test is used in a simulated actual application, a user lying scene that a user can not directly stand up after lying down is simulated. The reliability and effectiveness of the simulation detection control operation of the electric push rod are improved.
Another object of the present invention is to provide a device for simulating and detecting the performance of an electric putter for functional sofa, which is characterized in that: the simulation sofa support comprises a simulation sofa support, three simulation balance weights, a pull rope type displacement sensor and an electric push rod, wherein the simulation sofa support is used for respectively simulating three simulation positions corresponding to a head area or a back area, a cushion area and a shank supporting area of a human body, the three simulation balance weights are respectively correspondingly positioned and placed, one end of the electric push rod is hinged to a fixed part of the simulation sofa support, the other end of the electric push rod is hinged to a linkage part of a connecting rod mechanism of the simulation sofa support, one end of the pull rope type displacement sensor is fixed to the fixed part of the simulation sofa support, and the other end of the pull rope type displacement sensor is fixed to the linkage part of the connecting rod mechanism of the simulation sofa support. The simulation detection operation is simple and effective, and the accuracy is higher.
The invention has the beneficial effects that: carry out better simulation customer service conditions to electric putter and simulate and detect, better obtain the product promotion design that has more pertinence to improve function sofa and use the travelling comfort.
Description of the drawings:
the invention is described in further detail below with reference to the figures and the detailed description.
FIG. 1 is a schematic structural diagram of an electric putter for functional sofa according to the present invention.
Detailed Description
Example 1:
in the embodiment shown in fig. 1, the method for simulating and detecting the performance of the electric push rod for functional sofa comprises the following detection steps
a. Installing an electric push rod to be tested on the simulated sofa support 10, installing the pull rope type displacement sensor 30, enabling the electric push rod 40 to stretch to drive a pull rope of the pull rope type displacement sensor to stretch, and enabling the axis of the pull rope 31 of the pull rope type displacement sensor 30 to be parallel to the axis of the electric push rod 40 to be tested and to be equal in height;
b. placing a simulation counter weight for fixing a counter weight for simulating a real human body on a simulation sofa support to form a human-shaped simulation test load configured and fixed on a simulation function sofa;
c. applying a detection current acquisition frequency of more than 30Hz to the electric push rod, and detecting to obtain comparison data before and after detection of the electric push rod on the simulation function sofa, wherein the comparison data before and after detection comprises current data of all time periods and corresponding push rod moving running distance data;
d. obtaining speed data of each time period of the operation test cycle time, including maximum operation speed, minimum speed and average speed according to the comparison data obtained by the detection in the step c;
e. and the detection personnel judge whether the load capacity, the fatigue life and the operation efficiency of the electric push rod meet set requirements or not through the data.
The simulation counter weight adopts three simulation counter weight modes, three simulation counter weights are respectively correspondingly positioned at the positions of a head area or a backrest area, a cushion area and a large leg supporting area of the simulation sofa support, and the three simulation counter weights jointly simulate and form a human-shaped simulation test load configured and fixed on the simulation function sofa. The weight ratio of the three simulated weights is 3:7:2, each weight is composed of a plurality of balancing weights, the weight of each balancing weight is the same and is 15kg, and the weight of each balancing weight is 10-16 kg.
And displaying the current data and the speed data on a human-computer interaction interface in real time, and synchronously storing the current data and the speed data into a data storage unit. The current data comprises a maximum current value, a minimum current value and an average current value of an interval, the speed data comprises a maximum running speed, a minimum running speed and an average running speed in a designated area, and push rod push-out displacement values corresponding to all detected current data and speed test data values are displayed on a human-computer interaction interface.
The operation test times of the electric push rod are more than 15000 times, the average current value is that the current value collected per second is more than 50 points, the collected current values are averaged to obtain a data value, and the maximum current value and the minimum current value in the interval are obtained by comparing the collected current values more than 50 points; collecting current value current collection was performed using a current transmitter. The electric push rod adopts a PLC test control system to control the circular operation of the electric push rod, and parameter data obtained by controlling operation detection are synchronously stored in a data storage unit through a human-computer interface.
The electric push rod circularly runs in three states of extending the electric push rod, keeping the push rod extending for a period of time after extending and contracting the electric push rod, and when the electric push rod circularly runs in a simulated actual use mode, a user lying scene that a user can not directly stand up after lying is simulated. Alternatively, the data may be output and analyzed by a removable storage unit.
The power supply voltage of the pull rope type displacement sensor is 22.6-25.6V, the precision of the pull rope type displacement sensor is +/-0.05% FS, and the repetition precision of the pull rope type displacement sensor is +/-0.03% FS; and the reliability and effectiveness of analog detection are improved. During the detection, the insulation resistance measured when 500Vdc is applied between the power circuit lead and the protection grounding circuit is required to be not less than 1(M omega); pressure resistance: all power wires and protective grounding circuits of the electrical equipment are subjected to withstand voltage tests of at least 1s, 50HZ and 1000V, and breakdown discharge and flashover phenomena are avoided.
Example 2:
in the embodiment shown in fig. 1, an electric putter performance simulation detection device for functional sofa comprises a simulation sofa support 10, three simulation weights, a pull rope type displacement sensor 30 and an electric putter 40 which are used in embodiment 1, wherein three simulation positions corresponding to a head area or a back area, a cushion area and a leg support area of a human body are respectively simulated on the simulation sofa support 10, the three simulation weights are respectively positioned and placed correspondingly, and a link mechanism of the simulation sofa support 10 can adopt a link mechanism of any one existing functional sofa.
One end of the electric push rod 40 is hinged and fixed with the fixed part 11 of the simulated sofa support 10, the other end of the electric push rod 40 is hinged with the linkage part 12 of the linkage mechanism of the simulated sofa support 10, one end of the shell of the pull rope type displacement sensor 30 is fixed with the fixed part 11 of the simulated sofa support 10, and one end of the pull rope 31 of the pull rope type displacement sensor 30, which is far away from the shell, is fixed with the linkage part 12 of the linkage mechanism of the simulated sofa support 10. The connecting line from the hinge joint of the electric push rod 40 and the fixing part 11 to the hinge joint of the electric push rod 40 and the linkage part 12, and the connecting line from the fixing part of the pull rope type displacement sensor 30 and the fixing part 11 to the end part of the pull rope 31 of the pull rope type displacement sensor 30 and the fixing part of the linkage part 12 are parallel and equal in height, namely, the axis of the electric push rod 40 and the axis of the pull rope type displacement sensor are parallel and equal in height.
The simulated sofa support 10 comprises a fixed part 11 (a support base) and a link mechanism, wherein the link mechanism is correspondingly linked with a human head area or a backrest area, a cushion area and a large and small leg supporting area and is respectively provided with a simulated counterweight 21, a simulated counterweight 22 and a simulated counterweight 23; the weight ratio of the three simulated weights is 3:7:2, each weight is composed of a plurality of balancing weights, the weight of each balancing weight is the same and is 15kg, and the weight of each balancing weight is 10-16 kg.
The rest is the same as in example 1.
The foregoing summary and structure are provided to explain the principles, general features, and advantages of the product and to enable others skilled in the art to understand the invention. The foregoing examples and description have been presented to illustrate the principles of the invention and are intended to provide various changes and modifications within the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A performance simulation detection method of an electric push rod for functional sofa is characterized by comprising the following steps: comprises the following detection steps
a. The method comprises the following steps of installing an electric push rod to be tested on a simulated sofa support, installing a pull rope type displacement sensor, stretching the electric push rod to drive a pull rope of the pull rope type displacement sensor to stretch, wherein the axis of the pull rope is parallel to the axis of the electric push rod and has the same height as the axis of the electric push rod;
b. placing a simulation counter weight for fixing a counter weight for simulating a real human body on a simulation sofa support to form a human-shaped simulation test load configured and fixed on a simulation function sofa;
c. applying a detection current acquisition frequency of more than 30Hz to the electric push rod, and detecting to obtain comparison data before and after detection of the electric push rod on the simulation function sofa, wherein the comparison data before and after detection comprises current data of all time periods and push rod stroke data corresponding to each current data;
the current data comprise interval maximum current values, minimum current values and average current values, and push rod push-out displacement values corresponding to all current data test values are detected and obtained.
2. The method for simulating and detecting the performance of the electric putter for functional sofa according to claim 1, wherein: the simulation counter weight adopt three parts of simulation counter weight modes, three parts of simulation counter weights are respectively correspondingly positioned and placed at the positions of a head area or a backrest area, a cushion area and a large leg supporting area of the simulation sofa support, and the three parts of simulation counter weights jointly simulate to form a humanoid simulation test load which is configured and fixed on the simulation function sofa.
3. The method for simulating and detecting the performance of the electric putter for functional sofa according to claim 2, characterized in that: the weight ratio of the three simulated weights is 3:7: 2; wherein 3 counter weights are correspondingly and fixedly arranged at the head or back area of the simulated sofa support, 7 counter weights are correspondingly and fixedly arranged at the cushion area of the simulated sofa support, and 2 counter weights are correspondingly and fixedly arranged at the big and small leg supporting areas of the simulated sofa support.
4. The method for simulating and detecting the performance of the electric putter for functional sofa according to claim 1, wherein: the comparison data before and after detection comprises speed data of all time periods, and the speed data comprises maximum running speed, minimum running speed and average running speed in a specified time period.
5. The method for simulating and detecting the performance of the electric putter for functional sofa according to claim 1, wherein: the operation test times of the electric push rod are more than 10000; the accuracy of the rope type displacement sensor is +/-0.05% FS, and the repetition accuracy of the pull rope type displacement sensor is +/-0.03% FS.
6. The method for simulating and detecting the performance of the electric putter for functional sofa according to claim 4, wherein the method comprises the following steps: and the current data and the speed data are displayed on a human-computer interaction interface in real time and are synchronously stored in a data storage unit.
7. The method for simulating and detecting the performance of the electric putter for functional sofa according to claim 1, wherein: the average current value is that the current value collected every second is more than 50 points, the current values obtained by collection are averaged to obtain a data value, and the maximum current value and the minimum current value in the interval are obtained by comparing the collected current values more than 50 points; the current value is collected using a current transducer.
8. The method for the performance simulation detection of the electric putter for functional sofa according to claim 1 or 5, characterized in that: the electric push rod adopts a PLC test control system to control the circular operation of the electric push rod, and parameter data obtained by controlling operation detection are synchronously stored in a data storage unit through a human-computer interface; the operation test of the electric push rod comprises the cyclic operation of three states of extending the electric push rod, keeping the electric push rod extending for a period of time after the push rod extends and contracting the electric push rod.
9. A detection device for implementing the detection method according to any one of claims 1 to 8, wherein: the three-part simulation sofa support comprises a simulation sofa support, three simulation balance weights, a pull rope type displacement sensor and an electric push rod to be tested, three simulation positions corresponding to a head area or a back area, a cushion area and a shank supporting area of a human body are simulated on the simulation sofa support respectively, the three simulation balance weights are placed in a corresponding positioning mode respectively, a fixed part of the simulation sofa support at one end of the electric push rod is hinged, the other end of the electric push rod is hinged with a linkage part of a connecting rod mechanism of the simulation sofa support, one end of the pull rope type displacement sensor is fixed with the fixed part of the simulation sofa support, and the other end of the pull rope type displacement sensor is fixed with the linkage part of the connecting rod mechanism of the.
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| CN111896829B (en) * | 2020-07-31 | 2023-05-05 | 上海荣泰健康科技股份有限公司 | Service life testing tool for massage machine core and debugging method thereof |
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