阅读说明：本技术 一种用于冰箱抽屉拉伸耐久性试验机 (Be used for tensile durability test machine of refrigerator drawer ) 是由 徐兰 李楠杰 孙轩 谢莹 徐娟 卢耀宗 杨振宇 于 2021-08-18 设计创作，主要内容包括：本发明公开了一种用于冰箱抽屉拉伸耐久性试验机,包括控制柜、实验装置与固定装置,所述实验装置包括能够在竖直方向上下移动的升降机构、能够在水平方向上左右移动的拉伸结构以及能够与冰箱抽屉结合的夹具固定结构,所述固定装置用于放置冰箱,且在固定装置上设置有吸附机构以固定冰箱的位置。在本发明实施过程中,能够对冰箱抽屉进行抽拉实验,还能将冰箱的位置固定住,且在本装置进行使用的时候能够适用于不同型号、规格的冰箱。(The invention discloses a tensile durability testing machine for a refrigerator drawer, which comprises a control cabinet, an experimental device and a fixing device, wherein the experimental device comprises a lifting mechanism capable of moving up and down in the vertical direction, a tensile structure capable of moving left and right in the horizontal direction and a clamp fixing structure capable of being combined with the refrigerator drawer, the fixing device is used for placing a refrigerator, and an adsorption mechanism is arranged on the fixing device to fix the position of the refrigerator. In the implementation process of the device, the drawer drawing experiment can be carried out on the refrigerator drawer, the position of the refrigerator can be fixed, and the device can be suitable for refrigerators of different models and specifications when being used.)

1. The utility model provides a be used for tensile durability test machine of refrigerator drawer which characterized in that: comprises a control cabinet (1), an experimental device (2) and a fixing device (3),

the experimental device (2) comprises a lifting mechanism capable of moving up and down in the vertical direction, a stretching structure capable of moving left and right in the horizontal direction and a fixture fixing structure capable of being combined with a refrigerator drawer,

the fixing device (3) is used for placing a refrigerator, and an adsorption mechanism is arranged on the fixing device (3) to fix the position of the refrigerator.

2. The refrigerator drawer tensile durability testing machine according to claim 1, wherein: the lifting mechanism comprises a motor (22) and a lead screw (210),

the stretching structure comprises an electric cylinder,

the clamp fixing structure comprises a clamp mechanism (27),

the output of motor (22) links to each other with lead screw (210), and when motor (22) rotated, lead screw (210) can rotate thereupon, is provided with mount pad (29) in one side below of motor (22), and mount pad (29) and lead screw (210) cooperation are in order to reciprocate, installs electronic jar on mount pad (29), has anchor clamps mechanism (27) at the one end rigid coupling of electronic jar, and electronic jar can drive anchor clamps mechanism (27) and remove on horizontal position, switch board (1) with motor (22), electronic jar electric connection.

3. The refrigerator drawer tensile durability testing machine according to claim 2, wherein: experimental device (2) still include fixed bolster (21), motor (22) are installed in the upper end of fixed bolster (21), and tow chain (23) are located one side of fixed bolster (21), mount pad (29) are located the front end of fixed bolster (21), go to have seted up vertical elongated groove in fixed bolster (21), and the rigid coupling has connecting block (211) on mount pad (29), and connecting block (211) are passed the elongated groove and are linked to each other with lead screw (210), and lead screw (210) run through connecting block (211) and with connecting block (211) threaded connection.

4. The refrigerator drawer tensile durability testing machine according to claim 2, wherein: the electric cylinder comprises an electric cylinder fixing end (24) and an electric cylinder extending end (25), and the clamp mechanism (27) is fixedly connected to the electric cylinder extending end (25).

5. The refrigerator drawer tensile endurance testing machine of claim 4, wherein: the rigid coupling has guide bar (26) rather than parallel arrangement on electronic jar stiff end (24), and the rigid coupling has the fixed block on the free end of electronic jar extension end (25), guide bar (26) pass the fixed block, install anchor clamps mechanism (27) on the fixed block.

6. The refrigerator drawer tensile durability testing machine according to claim 2, wherein: the clamp mechanism (27) is of a U-shaped structure with an upward opening, a clamping plate (215) is arranged in the clamp mechanism (27), an adjusting nut (216) is rotatably arranged on the clamping plate (215), the adjusting nut (216) penetrates through the side wall of the clamp mechanism (27) and is in threaded connection with the side wall, and the clamp mechanism (27) is fixedly connected with the extending end (25) of the electric cylinder through a fixing nut (214).

7. The refrigerator drawer tensile durability testing machine according to claim 2, wherein: fixing device (3) include base (31), stand (32), mount (33) and sucking disc mechanism (34), stand (32) rigid coupling is in order to constitute four sides at four corner positions of base (31), on wherein three sides that mount (33) rigid coupling formed on stand (32), just sucking disc mechanism (34) rigid coupling is on mount (33).

8. The refrigerator drawer tensile durability testing machine according to claim 1, wherein: and a display screen is arranged on the control cabinet (1).

9. The refrigerator drawer tensile durability testing machine according to claim 2, wherein: limiting plates are fixedly connected to two sides of the mounting seat (29) and extend to two sides of the fixing support (21).

10. The refrigerator drawer tensile durability testing machine according to claim 2, wherein: one side rigid coupling that mount pad (29) are close to fixed bolster (21) has slider (218), the rigid coupling has along guide rail (217) that vertical direction arranged on fixed bolster (21), and slider (218) card can slide along guide rail (217) at guide rail (217) and slider (218).

Technical Field

The invention belongs to the technical field of refrigerator detection equipment, and particularly relates to a tensile durability testing machine for a refrigerator drawer.

Background

Refrigerators and freezers are common appliances for refrigeration in life, and each refrigerator is provided with a drawer and a similar pull basket, and in the using process of the refrigerator, the frequent drawers of a user are used, and when the using times are too many, the durability of the drawers and the pull baskets (namely whether the slide rails can still be used normally) is influenced, and the normal use of the drawers and the pull baskets is finally influenced.

In order to test the durability of drawers for refrigerators/freezers and similar pull baskets, the present application provides a tensile durability tester for refrigerator drawers.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a tensile durability testing machine for a refrigerator drawer, which effectively solves the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a be used for tensile durability test machine of refrigerator drawer, includes switch board, experimental apparatus and fixing device, experimental apparatus including the elevating system that can reciprocate in vertical direction, can remove the tensile structure and can with the anchor clamps fixed knot that refrigerator drawer combined about in the horizontal direction construct, fixing device is used for placing the refrigerator, and is provided with the position of adsorption apparatus structure with fixed refrigerator on fixing device.

Preferably, elevating system includes motor, lead screw, tensile structure includes electronic jar, anchor clamps fixed knot constructs including anchor clamps mechanism, the output and the lead screw of motor link to each other, and when the motor rotated, the lead screw can rotate thereupon, is provided with the mount pad in one side below of motor, and the mount pad is in order to reciprocate with the lead screw cooperation, installs electronic jar on the mount pad, has anchor clamps mechanism at the one end rigid coupling of electronic jar, and electronic jar can drive anchor clamps mechanism and remove on horizontal position, the switch board with motor, electronic jar electric connection.

Preferably, the experimental apparatus further comprises a fixing support, the motor is installed at the upper end of the fixing support, the tow chain is located on one side of the fixing support, the installation seat is located at the front end of the fixing support, a vertical long groove is formed in the fixing support, a connecting block is fixedly connected to the installation seat, the connecting block penetrates through the long groove to be connected with the lead screw, and the lead screw penetrates through the connecting block and is in threaded connection with the connecting block.

Preferably, the electric cylinder comprises an electric cylinder fixed end and an electric cylinder extending end, and the clamp mechanism is fixedly connected to the electric cylinder extending end.

Preferably, the fixed end of the electric cylinder is fixedly connected with guide rods arranged in parallel, the free end of the extending end of the electric cylinder is fixedly connected with a fixed block, the guide rods penetrate through the fixed block, and the clamp mechanism is installed on the fixed block.

Preferably, the clamp mechanism is of a U-shaped structure with an upward opening, a clamping plate is arranged in the clamp mechanism, an adjusting nut is rotatably arranged on the clamping plate, the adjusting nut penetrates through the side wall of the clamp mechanism and is in threaded connection with the side wall, and the clamp mechanism is fixedly connected with the extending end of the electric cylinder through a fixing nut.

Preferably, the fixing device comprises a base, a stand column, a fixing frame and a sucker mechanism, wherein the stand column is fixedly connected to four corners of the base to form four side faces, the fixing frame is fixedly connected to three of the side faces formed on the stand column, and the sucker mechanism is fixedly connected to the fixing frame.

Preferably, a display screen is arranged on the control cabinet.

Preferably, limiting plates are fixedly connected to two sides of the mounting seat, and the limiting plates extend to two sides of the fixing support.

Preferably, one side of the mounting seat close to the fixed support is fixedly connected with a sliding block, the fixed support is fixedly connected with a guide rail arranged along the vertical direction, the sliding block is clamped on the guide rail, and the sliding block can slide along the guide rail, compared with the prior art, the invention has the beneficial effects that:

1) when the refrigerator pulling experiment device is implemented, the refrigerator pulling experiment can be carried out, and when the refrigerator pulling experiment is carried out, the use of a user and the use of a control cabinet can be facilitated, the user can conveniently control the electrical structure in the device, and the user can conveniently adjust the electrical structure in the device to adapt to the height of the refrigerator.

2) Through being provided with experimental apparatus, not only can be adapted to the not refrigerator of co-altitude, can also carry out the pull operation to the refrigerator, when experimental apparatus used, the motor can drive electronic jar and reciprocate, and then makes its height that uses different refrigerators, and electronic jar can carry out the pull operation to the refrigerator when using.

3) Through being provided with fixing device, can be when this scheme is implemented, fix the position of refrigerator, and then in the refrigerator use, avoid the refrigerator to take place to remove, when placing fixing device with the refrigerator on, fix the position of refrigerator to avoid the refrigerator at the in-process of pull experiment, take place to remove.

4) The experimental device in the device designs the bed plate, need not to fix and can stably use, and this device can alternate the test place at any time according to customer's demand for the application scope of this device is more extensive.

5) The refrigerator drawer stretching durability testing machine is designed according to GB/T8059 series standards, is suitable for testing the durability of drawer sliding rails arranged on a refrigerator or an ice chest and a freezer, uses a servo motor as a driving source, uses a special fixture to grab and place a drawer and similar pull baskets, can preset and display the stretching test times, the stretching test stroke and the stretching test speed, is controlled by a PLC (programmable logic controller) and operated by a panel, has reliable and stable overall performance, and can test the drawer under the conditions of different heights and different stretching strokes.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view of the experimental apparatus of the present invention;

FIG. 3 is an enlarged schematic view of the fastening device of the present invention;

FIG. 4 is a schematic diagram of the internal top view of the fixing bracket of FIG. 3 according to the present invention;

FIG. 5 is an enlarged schematic view of the invention at A of FIG. 2;

FIG. 6 is an enlarged view of the structure of FIG. 4 at B according to the present invention;

fig. 7 is a schematic view of the internal structure of the clamping mechanism of the present invention.

In the figure: 1. a control cabinet; 2. an experimental device; 21. fixing a bracket; 22. a motor; 23. a drag chain; 24. a fixed end of the electric cylinder; 25. an electric cylinder extension end; 26. a guide bar; 27. a clamp mechanism; 28. a base; 29. a mounting seat; 210. a lead screw; 211. connecting blocks; 212. a shaft seat; 213. a connecting plate; 214. fixing a nut; 215. a splint; 216. adjusting the nut; 217. a guide rail; 218. a slider; 219. a chute; 3. a fixing device; 31. a base; 32. a column; 33. a fixed mount; 34. a suction cup mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention discloses a tensile durability testing machine for a refrigerator drawer, which comprises a control cabinet 1, an experimental device 2 and a fixing device 3, wherein the experimental device 2 comprises a lifting mechanism capable of moving up and down in the vertical direction, a tensile structure capable of moving left and right in the horizontal direction and a clamp fixing structure capable of being combined with the refrigerator drawer, the fixing device 3 is used for placing the refrigerator, and an adsorption mechanism is arranged on the fixing device 3 to fix the position of the refrigerator.

The lifting mechanism comprises a motor 22 and a lead screw 210, and in the specific implementation, the motor 22 and the lead screw 210 transmit motion through a coupling connection, the type of the coupling is LC-C-055-R-25B-20B, and the type of the lead screw 210 is R32-5T 4-FSI-1500-.

The stretching structure comprises an electric cylinder, and when the stretching structure is specifically implemented, the model of the electric cylinder is HLTA80-S1000-L-D, and the parameters are as follows: the effective stroke is 1000mm, the rated output is 0.63KN, the maximum output is 1.91KN, the rated speed is 1000mm/s, the matched motor is a servo motor, the power of the motor is 0.75KW, the rated rotation speed of the motor is 3000rpm, the rated torque of the motor is 2,38 N.m, the reduction ratio is 1:1, the lead of a screw rod is 25 multiplied by 20mm, the electric cylinder is lubricated by lubricating grease, the installation mode is a front end flange, no internal anti-rotation mechanism is arranged, the electric cylinder is provided with an internal magnetic ring, and a magnetic induction limit switch is arranged.

When the device is used, a certain load is placed in the drawer to repeatedly pull out and close the drawer, after a certain number of times of circulation, whether the slide drawer rail can meet the use requirement or not is checked, and the fixture fixing structure comprises a fixture mechanism 27,

when this equipment uses, the user puts the refrigerator on fixing device 3 earlier, then can make experimental apparatus 2 begin to operate through control switch board 1, and at the in-process of experimental apparatus 2 operation, experimental apparatus 2 can carry out the pull experiment to the refrigerator, and then survey refrigerator pull number of times.

Experimental apparatus 2 includes motor 22, lead screw 210, electronic jar and fixture mechanism 27, the output of motor 22 links to each other with lead screw 210, and when motor 22 rotated, lead screw 210 can rotate thereupon, be provided with axle bed 212 at lead screw 210 lower extreme, the lower extreme of lead screw 210 inserts in it, and can rotate in it, be provided with mount pad 29 in one side below of motor 22, mount pad 29 should with lead screw 210 cooperation from top to bottom, install electronic jar on the mount pad 29, there is fixture mechanism 27 at the one end rigid coupling of electronic jar, fixture mechanism 27 can combine together with the refrigerator door, and then carry out the pull experiment to the refrigerator, electronic jar can drive fixture mechanism 27 and remove on horizontal position. When the motor 22 is in operation, the motor 22 can drive the lead screw 210 to rotate, and when the lead screw 210 rotates, the lead screw 210 and the mounting seat 29 interact with each other, so that the mounting seat 29 moves up and down.

The tow chain 23 is located one side of fixed bolster 21, and the mount pad 29 is located the front end of fixed bolster 21, and has seted up vertical long-shaped groove at fixed bolster 21, and the rigid coupling has connecting block 211 on the mount pad 29, and connecting block 211 passes long-shaped groove and links to each other with lead screw 210, and lead screw 210 run through connecting block 211 and with connecting block 211 threaded connection. Limiting plates are fixedly connected to two sides of the mounting seat 29 and extend to two sides of the fixing support 21, so that the mounting seat 29 is prevented from rotating along with the screw 210 when the mounting seat 29 moves up and down. In the implementation of mount 29, mount 29 may be provided as a frame structure with dust covers mounted on its sides (as shown) to prevent dust from entering its interior.

Switch board 1 and motor 22, electronic jar electric connection, the use of switch board 1 can provide power to motor 22 and electronic jar to the user is controlled motor 22 and electronic jar.

Fixing device 3 is used for placing the refrigerator, and is provided with the position of adsorption equipment in order to fix the refrigerator on fixing device 3, and adsorption equipment can be the sucking disc, and when the user placed the refrigerator on fixing device 3 promptly, then used the sucking disc to fix the refrigerator on fixing device 3 to when having guaranteed that the pull experiment is carried out to the refrigerator, the refrigerator can remain stable.

The electric cylinder comprises an electric cylinder fixing end 24 and an electric cylinder extending end 25, and the clamp mechanism 27 is fixedly connected to the electric cylinder extending end 25.

The rigid coupling has rather than parallel guide bar 26 of arranging on electronic jar stiff end 24, and the rigid coupling has the fixed block on the free end of electronic jar extension end 25, and guide bar 26 passes the fixed block, and anchor clamps mechanism 27 is installed on the fixed block, and the use of fixed block can restrict electronic jar extension end 25's removal orbit, and guide bar 26 can be provided with two when implementing, is located two opposite flank of electronic jar stiff end 24 respectively. The extension or shortening of electric cylinder extension end 25 can drive fixture mechanism 27 to move forward or backward, thereby having realized carrying out the operation of pull experiment to the refrigerator. On the ends of the guide rod 26 and the electric cylinder extension end 25, a connection plate 213 is provided, to which the ends of the guide rod 26 and the electric cylinder extension end 25 are fixedly connected, so as to ensure stability between the ends of the guide rod 26 and the electric cylinder extension end 25.

The clamp mechanism 27 is of a U-shaped structure with an upward opening, a clamping plate 215 is arranged in the clamp mechanism 27, an adjusting nut 216 is rotatably arranged on the clamping plate 215, the adjusting nut 216 penetrates through the side wall of the clamp mechanism 27 and is in threaded connection with the side wall, when a user rotates the adjusting nut 216, the distance between the clamping plate 215 and the clamp mechanism 27 can be changed, a drawer of the refrigerator is clamped, the clamp mechanism 27 and the electric cylinder extension end 25 are fixedly connected through a fixing nut 214, the structure is arranged, the refrigerator can be conveniently drawn and pulled in the using process, and the structure matched with the refrigerator is designed.

When the splint 215 is implemented, a fixing rod may be further provided thereon to ensure stability of the splint 215 when moving. And a sensor can be arranged on the clamp mechanism 27 to facilitate the user to control the clamping plate 215, when the sensor is contacted with the refrigerator drawer, the clamping plate 215 starts to move to fix the refrigerator drawer.

One side rigid coupling that mount pad 29 is close to fixed bolster 21 has slider 218, has seted up spout 219 in the slider 218, and the rigid coupling has the guide rail 217 of arranging along vertical direction on the fixed bolster 21, and slider 218 card can slide along guide rail 217 at guide rail 217 and slider 218 to guarantee that mount pad 29 can be more stable at the in-process that reciprocates. The guide rail 217 and the slider 218 are of a matched structure, and the model is HGW20CC2R1758 ZOC.

The fixing device 3 comprises a base 31, a stand column 32, a fixing frame 33 and two sucker mechanisms 34, wherein the stand column 32 is fixedly connected to four corner positions of the base 31 to form four side surfaces, the fixing frame 33 is fixedly connected to three of the side surfaces formed on the stand column 32, so that a refrigerator can be placed into the fixing device 3 from one of the side surfaces, the sucker mechanisms 34 are fixedly connected to the fixing frame 33, the sucker mechanisms 34 are provided in two groups, and the two groups of sucker mechanisms 34 are arranged on the two fixing frames 33 in parallel.

Be provided with the display screen on the switch board 1, when this scheme was implemented, the display screen was the touch-sensitive screen, and is provided with control button on switch board 1 to make things convenient for the user to use switch board 1.

When the device is used, the operation is carried out according to the following steps:

firstly, placing a test pack in a fruit and vegetable chamber of a refrigerator according to 1/2 with effective volume, placing a test pack in a freezing chamber according to 2/3 with effective volume and electrifying, adjusting the temperature controller to be in the middle, pulling the drawer to the place with ten thousand times of freezing drawer and thirty thousand times of refrigerating drawer at the pulling frequency of 20 times per minute, but not causing great impact on a stopper, and placing a counterweight in the drawer and similar pull baskets and electrifying the system; secondly, placing the refrigerator to be tested on the fixing device 3, and adjusting the height of the electric cylinder to be matched with the height of the refrigerator; the third step, setting parameters of the control cabinet 1 (weekly testing minutes/times), the fourth step, manually drawing tracks of the electric cylinder and the refrigerator, recording and calibrating, the fifth step, starting testing, the sixth step, starting periodic motion testing of the electric cylinder, the seventh step A, carrying out the eighth step A when reaching the experimental times, finishing the experiment, the seventh step B, leading the sucker mechanism 34 and the clamp mechanism 27 to have falling faults, carrying out the eighth step B when not reaching the experimental times, feeding back the eighth step B into the control cabinet 1 to carry out alarm display, and the ninth step, finishing the experiment.

The device parameters of the device can refer to the following parameters:

1. applicable objects are as follows: durability life test of drawers, durability test of pull baskets or similar drawers and other products.

2. Test stroke: 100-500mm (adjustable).

3. Absolute error of measured travel: less than or equal to +/-0.25 m.

4. The test times are as follows: 0-99999 can be preset and display the current times.

5. Test speed: 0-30 times per minute (preset).

6. Loading a drawer: 8 Kg.

7. Test height: 100-1500mm (adjustable).

8. Time interval: and (3) adjusting for 0-60 minutes.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.