Support frame for vibration experiment of washing machine drum

Abstract

A support frame for a washing machine drum vibration experiment disclosed by the present invention comprises a workbench, a support plate, a sliding sleeve and a top plate, the support plate is rotatably installed at the central position of the upper surface of the workbench, the edge of the upper surface of the support plate is provided with a plurality of seat plates, and the interior of each seat plate is in threaded connection with a first twisting handle. One end of the first twisting handle is provided with a first twisting handle, and the other end is provided with an extrusion head; sliding rods are vertically arranged at the four corners of the upper surface of the workbench, the sliding rods are sleeved with the sliding sleeves, second screws penetrating through the sliding sleeves are arranged on the surfaces of the sliding sleeves, and the second screws are in threaded connection with the sliding sleeves. According to the invention, under the fixing effect of the plurality of extrusion heads and the attaching effect of the four rollers, clothes with appropriate weight are put into the roller, the roller can be kept stable in the rapid rotation process, and the lower area, the middle area and the upper area of the roller can be kept stable in rotation, so that the state of the roller during working is simulated.

Description

Technical Field

[0001] The invention relates to the technical field of washing machine drum vibration experiments, in particular to a support frame used for washing machine drum vibration experiments. Background Art

[0002] The vibration and noise generated by the washing machine drum during operation are key indicators for measuring its product quality. Through vibration and noise testing, the various performance parameters of the tested washing machine drum can be revealed, and then its compliance with design requirements, quality and potential improvement directions can be evaluated; during the operation of the washing machine drum, a certain amount of clothes are placed inside. During the operation, the inner wall of the drum is subjected to a large impact force. During the development of the drum, the force performance of the drum needs to meet certain standards, so the drum needs to be tested experimentally; some existing testing equipment places the drum on the testing equipment when testing the drum, rolls it for a period of time, then takes it out to test whether the inner wall of the drum has cracks, slits, etc. However, during the rotation of the drum, due to the loose support, the drum is prone to horizontal mixing or vertical vibration, which will affect the correctness of the test results.

[0003] The present invention is proposed in view of the above problems. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a support frame for a washing machine drum vibration test to solve the problems mentioned in the background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions.

[0006] The present invention provides a support frame for a washing machine drum vibration experiment, comprising a workbench, a support plate, a sliding sleeve and a top plate, wherein the support plate is rotatably mounted at the central position of the upper surface of the workbench, a plurality of seat plates are arranged at the edge of the upper surface of the support plate, a first screw rod is connected to the inner thread of the seat plate, a first screw handle is arranged at one end of the first screw rod, and an extrusion head is arranged at the other end, and when the drum is placed on the support plate, the extrusion head is attached to the lower surface of the drum, so as to fix the drum;

[0007] Slide rods are vertically arranged at four corners of the upper surface of the workbench, the slide sleeve is sleeved on the slide rod, a second screw rod penetrating the slide sleeve is arranged on the surface of the slide sleeve, the second screw rod is threadedly connected to the slide sleeve, a second screw handle is arranged at one end of the second screw rod, and the other end abuts against the surface of the slide rod, and the second screw rod plays a fixing role on the slide sleeve;

[0008] The top plate is fixed to the top of four sliding rods, and the top plate is parallel to and located directly above the workbench. Four electric push rods are vertically arranged in the top plate, and the electric push rods are vertically facing downward. A lifting plate is arranged at the end of the electric push rods, and the four corners of the lifting plate are respectively sleeved on the four sliding rods. The lifting plate is located directly below the top plate and remains parallel to the top plate. The telescopic movement of the electric push rods drives the lifting plate to move up and down;

[0009] Two clamping blocks are arranged on the upper and lower sides of the sliding sleeve, a cantilever is rotatably arranged between the two clamping blocks, a roller is rotatably arranged on one end of the cantilever away from the clamping block through a rotating shaft, and the cantilever can rotate relative to the clamping block so that the roller fits on the surface of the drum.

[0010] Preferably, legs are vertically arranged at the four corner positions of the lower surface of the workbench, a bottom plate is arranged between the four legs, a center hole is arranged in the center of the upper surface of the workbench, a shaft rod is vertically arranged in the center of the lower surface of the support plate, the shaft rod passes through the center hole, a driven pulley is arranged at the lower end of the shaft rod, a motor is arranged on the upper surface of the bottom plate, a driving pulley is arranged at the driving shaft end of the motor, and a transmission belt is wound around the driving pulley and the driven pulley.

[0011] Preferably, the seat plate has five to eight equally spaced edges uniformly distributed around the edge of the upper surface of the support plate, the extrusion head is located at one end of the first screw rod close to the center of the support plate, and the upper surface of the support plate is uniformly provided with multiple anti-slip grooves at equal intervals.

[0012] Preferably, a first reinforcing rib plate is arranged between the side surface of the support leg and the lower surface of the workbench, and a second reinforcing rib plate is arranged between the surface of the electric push rod and the upper surface of the top plate, and there are four second reinforcing rib plates which are evenly distributed around the electric push rod at equal intervals.

[0013] Preferably, the upper surface of the workbench has a circular downward groove, the downward groove is located around the center hole, the downward groove is concentric with the center hole, the lower surface of the support plate is provided with a circular upper groove, the upper groove is located directly above the downward groove, a plurality of rollers are evenly arranged around the downward groove at equal intervals, and the upper half of the rollers are against the inner wall of the upper groove.

[0014] Preferably, a circular annular groove is provided at the center of the lower surface of the lifting plate, the annular groove is located directly above the supporting plate, and the center of the annular groove is vertically aligned with the center of the supporting plate.

[0015] Preferably, a rotating shaft is provided on the upper and lower surfaces of one end of the cantilever close to the clamping block, a rubber sleeve is provided at the end of the rotating shaft, the end of the rotating shaft is rotatably installed in the clamping block, and the rubber sleeve is located between the rotating shaft and the clamping block.

[0016] Preferably, the roller is flat, and the orthographic projection of the edge of the roller is located inside the support plate.

[0017] Preferably, circular protruding blocks are provided at the four corners of the lifting plate, circular holes penetrating the protruding blocks are provided on the protruding blocks, and the sliding rod passes through the circular holes.

[0018] Preferably, the four electric push rods are symmetrically arranged on the top plate front-to-back and left-to-right, and the front end of the extrusion head is spherical.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] When the motor is working, the driving pulley rotates, and the driven pulley can be driven to rotate through the transmission effect of the transmission belt, so that the support plate rotates accordingly; the roller is between the lower slide groove and the upper slide groove, and the roller supports the support plate, and solid lubricating oil is applied between the lower slide groove and the roller, so that the support plate can rotate more stably on the upper surface of the workbench at a faster speed;

[0021] Place the roller to be tested horizontally on the upper surface of the support plate, hold the first screw handle and rotate it, so that the first screw and the extrusion head can move toward the roller, and the extrusion head can fit on the outer surface of the roller. The extrusion head is made of rubber, and multiple extrusion heads can abut against the outer surface of the roller to fix the roller firmly;

[0022] The electric push rod moves downward, driving the lifting plate to move downward. The lifting plate just moves to the upper edge of the drum, and the upper edge of the drum enters the annular groove. Then the four cantilevers are rotated toward the center of the support plate, so that the four rollers fit the outer surface of the drum. When the drum rotates, the rollers can rotate with it.

[0023] Under the fixing action of multiple extrusion heads and the fitting action of four rollers, clothes of appropriate weight are put into the drum. The drum can remain stable during rapid rotation, and the lower area, middle area and upper area of ​​the drum can all maintain stable rotation to simulate the state of the drum when working.

[0024] The support plate has a certain area. Rollers of different sizes can be placed on the support plate and can be firmly fixed. After the roller rotates for a period of time, the roller is removed and the inner wall of the roller is inspected for defects such as cracks and fine lines to determine whether the roller quality is qualified. Rollers of different sizes and models can be inspected on the upper surface of the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall stereogram of the present invention;

[0026] Figure 2It is a three-dimensional diagram of the workbench and the motor of the present invention;

[0027] Figure 3 A three-dimensional diagram of the support plate of the present invention;

[0028] Figure 4 A three-dimensional diagram of the slide chute and the roller of the present invention;

[0029] Figure 5 A three-dimensional diagram of the lifting plate of the present invention;

[0030] Figure 6 It is a cantilever stereogram of the present invention.

[0031] In the figure: 1. workbench; 11. support leg; 12. first reinforcing rib plate; 13. bottom plate; 14. motor; 141. driving pulley; 142. transmission belt; 15. center hole; 16. lower slide groove; 17. roller; 18. slide rod; 2. support plate; 21. shaft rod; 22. driven pulley; 23. anti-skid pattern; 3. seat plate; 31. first screw rod; 32. first screw handle; 33. extrusion head; 4. sliding sleeve; 41. second bolt; 42. second screw handle; 43. clamping block; 44. cantilever; 45. roller; 5. top plate; 51. electric push rod; 52. second reinforcing rib plate; 53. lifting plate; 54. annular groove. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] like Figure 1-6 As shown, a support frame for a washing machine drum vibration test comprises a workbench 1, a support plate 2, a sliding sleeve 4 and a top plate 5. The support plate 2 is rotatably mounted at the central position of the upper surface of the workbench 1. A plurality of seat plates 3 are arranged at the edge of the upper surface of the support plate 2. The seat plates 3 are internally threadedly connected with a first screw rod 31. A first screw handle 32 is arranged at one end of the first screw rod 31, and an extrusion head 33 is arranged at the other end. The first screw handle 32 is held to rotate the first bolt 31, and the first bolt 31 can move forward and backward. The extrusion head 33 moves forward and can fit under the outer surface of the drum.

[0035] The four corners of the upper surface of the workbench 1 are vertically provided with a slide bar 18, and the slide sleeve 4 is sleeved on the slide bar 18. The slide sleeve 4 can move up and down on the slide bar 18. The surface of the slide sleeve 4 is provided with a second screw rod 41 that penetrates the slide sleeve 4. The second screw rod 41 is threadedly connected to the slide sleeve 4. One end of the second screw rod 41 is provided with a second screw handle 42, and the other end abuts against the surface of the slide bar 18. Holding the second screw handle 42 and rotating it can drive the second screw rod 41 to move forward and backward. When the second screw rod 41 moves forward, the end of the second screw rod 41 can abut against the outer surface of the slide bar 16, so that the slide sleeve 4 can be fixed at a certain position on the slide bar 18;

[0036] The top plate 5 is fixed to the top of the four slide bars 18. The top plate 5 is parallel to and directly above the workbench 1. Four electric push rods 51 are vertically arranged in the top plate 5. The electric push rods 51 face vertically downward. A lifting plate 53 is arranged at the end of the electric push rods 51. That is, the extension and retraction of the electric push rods 51 can drive the lifting plate 53 to move up and down. The four corners of the lifting plate 53 are respectively sleeved on the four slide bars 18. The four slide bars 18 limit the up and down movement of the lifting plate 53. The lifting plate 53 is located directly below the top plate 5 and remains parallel to the top plate 5.

[0037] Two clamping blocks 43 are arranged on the upper and lower sides of the sliding sleeve 4, and a cantilever 44 is rotatably arranged between the two clamping blocks 43. A roller 45 is rotatably arranged on the end of the cantilever 44 away from the clamping block 43 through a rotating shaft, that is, the cantilever 44 can rotate between the clamping blocks 43. When the cantilever 44 rotates, the roller 45 can fit on the outer surface of the drum, so that the roller 45 plays a supporting and limiting role on the middle area of ​​the drum.

[0038] Legs 11 are vertically arranged at the four corners of the lower surface of the workbench 1, a base plate 13 is arranged between the four legs 11, a center hole 15 is arranged in the center of the upper surface of the workbench 1, a shaft rod 21 is vertically arranged in the center of the lower surface of the support plate 2, the shaft rod 21 passes through the center hole 15, a driven pulley 22 is arranged at the lower end of the shaft rod 21, a motor 14 is arranged on the upper surface of the base plate 13, a driving pulley 141 is arranged at the driving shaft end of the motor 14, a transmission belt 142 is wound around the driving pulley 141 and the driven pulley 22, that is, the motor 14 drives the driving pulley 141 to rotate when it works, and the driving pulley 141 drives the driven pulley 22 to rotate through the transmission belt 142, the shaft rod 21 and the support plate 2 rotate with the driven pulley 22, and the roller placed on the upper surface of the support plate 2 rotates with the support plate 2.

[0039] The seat plate 3 has five to eight evenly spaced edges distributed around the upper surface edge of the support plate 2. The extrusion head 33 is located at one end of the first screw 31 close to the center of the support plate 2. In this way, there are also five to eight extrusion heads 33, which can fix various positions in the circumferential direction below the surface of the drum. The upper surface of the support plate 2 is evenly spaced with multiple anti-slip grooves 23, which can enhance the friction of the contact surface between the lower surface of the drum and the support plate 2.

[0040] A first reinforcing rib plate 12 is arranged between the side of the support leg 11 and the lower surface of the workbench 1, and a second reinforcing rib plate 52 is arranged between the surface of the electric push rod 51 and the upper surface of the top plate 4. There are four second reinforcing rib plates 52, which are evenly distributed around the electric push rod 51 at equal intervals, so that the structural strength between the electric push rod 51 and the top plate 5 is better.

[0041] The upper surface of the workbench 1 is provided with a circular ring-shaped lower groove 16, which is located around the center hole 15 and is concentric with the center hole 15. The lower surface of the support plate 2 is provided with a circular ring-shaped upper groove, which is located directly above the lower groove 16. A plurality of rollers 17 are evenly arranged around the lower groove 16 at equal intervals. The upper half of the rollers 17 are abutted against the inner wall of the upper groove, and the rollers 17 support the support plate 2, so that the rolling of the lower surface of the support plate 2 is rolling friction, so that the resistance to the horizontal circular rotation of the support plate 2 is small.

[0042] A circular annular groove 54 is provided at the center of the lower surface of the lifting plate 53. The annular groove 54 is located directly above the support plate 2, and the center of the annular groove 54 is aligned with the center of the support plate 2. The annular groove 54 is located at the upper edge of the drum, so that when the drum rotates, the annular groove 54 can prevent the drum from vibrating upward and popping out.

[0043] A rotating shaft is provided on the upper and lower surfaces of one end of the cantilever 44 close to the clamping block 43, and a rubber sleeve is provided at the end of the rotating shaft. The rubber sleeve is a large damping rod for the rotation of the cantilever 44, so that when the cantilever 44 rotates to a certain position, it can stay at this position. The end of the rotating shaft is rotatably installed in the clamping block 43, and the rubber sleeve is located between the rotating shaft and the clamping block 43.

[0044] The roller 45 is flat, and the orthographic projection of the edge of the roller 45 is located inside the support plate 2, so that the roller 45 can fit on the outer surface of the drum.

[0045] The four corners of the lifting plate 53 are provided with circular protruding blocks, and the protruding blocks are provided with circular holes penetrating the protruding blocks. The sliding rod 18 passes through the circular holes, so that the lifting plate 53 slides up and down and is relatively stable.

[0046] Four electric push rods 51 are symmetrically arranged on the top plate 5 in a front-to-back and left-to-right manner, and the front end of the extrusion head 33 is spherical.

[0047] In summary: the motor 14 works, the driving pulley 141 rotates, and the driven pulley 22 can be driven to rotate through the transmission action of the transmission belt 142, so that the support plate 2 rotates accordingly; the roller 17 is between the lower slide groove 16 and the upper slide groove, and the roller 17 supports the support plate 2, and solid lubricating oil is applied between the lower slide groove 16 and the roller 17, so that the support plate 2 can be relatively stable and rotate at a faster speed on the upper surface of the workbench 1;

[0048] Place the roller to be tested horizontally on the upper surface of the support plate 2, hold the first screw handle 32 and rotate it, so that the first screw 31 and the extrusion head 33 can move toward the roller, and the extrusion head 33 can fit on the outer surface of the roller. The extrusion head 33 is made of rubber, and multiple extrusion heads 33 can abut against the outer surface of the roller to fix the roller firmly;

[0049] The electric push rod 51 moves downward, driving the lifting plate 53 to move downward, and the lifting plate 53 just moves to the upper edge of the drum, and the upper edge of the drum enters the annular groove 54, and then the four cantilevers 44 are rotated toward the center direction of the support plate 2, so that the four rollers 45 are attached to the outer surface of the drum; when the drum rotates, the rollers 45 can rotate with it;

[0050] Under the fixing action of the multiple squeezing heads 33 and the fitting action of the four rollers 45, clothes of appropriate weight are put into the drum. The drum can remain stable during the rapid rotation, and the lower area, middle area and upper area of ​​the drum can all maintain stable rotation to simulate the state of the drum when working.

[0051] The support plate 2 has a certain area, and rollers of different sizes can be placed on the support plate 2 and can be firmly fixed. After the roller rotates for a period of time, the roller is removed and the inner wall of the roller is inspected for defects such as cracks and fine lines to determine whether the quality of the roller is qualified. Rollers of different sizes and models can be inspected on the upper surface of the support plate 2.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A support frame for washing machine drum vibration test, characterized in that: The machine comprises a workbench (1), a support plate (2), a sliding sleeve (4) and a top plate (5); the support plate (2) is rotatably mounted at the central position of the upper surface of the workbench (1); a plurality of seat plates (3) are arranged at the edge of the upper surface of the support plate (2); the seat plates (3) are internally threadedly connected with a first screw rod (31); a first screw handle (32) is arranged at one end of the first screw rod (31) and an extrusion head (33) is arranged at the other end; Slide rods (18) are vertically arranged at four corners of the upper surface of the workbench (1), the slide sleeve (4) is sleeved on the slide rod (18), the surface of the slide sleeve (4) is provided with a second screw rod (41) penetrating the slide sleeve (4), the second screw rod (41) is threadedly connected to the slide sleeve (4), one end of the second screw rod (41) is provided with a second screw handle (42), and the other end abuts against the surface of the slide rod (18); The top plate (5) is fixed on the top ends of the four sliding bars (18). The top plate (5) is located parallel to and directly above the workbench (1). Four electric push rods (51) are vertically arranged in the top plate (5). The electric push rods (51) face vertically downward. A lifting plate (53) is arranged at the end of the electric push rod (51). The four corners of the lifting plate (53) are respectively sleeved on the four sliding bars (18). The lifting plate (53) is located directly below the top plate (5) and remains parallel to the top plate (5). Two clamping blocks (43) are arranged on the upper and lower sides of the sliding sleeve (4), a cantilever (44) is rotatably arranged between the two clamping blocks (43), and a roller (45) is rotatably arranged at one end of the cantilever (44) away from the clamping block (43) via a rotating shaft.

2. A support frame for washing machine drum vibration test according to claim 1, characterized in that: The four corners of the lower surface of the workbench (1) are vertically provided with supporting legs (11), a bottom plate (13) is provided between the four supporting legs (11), a center hole (15) is provided in the center of the upper surface of the workbench (1), a shaft (21) is vertically provided in the center of the lower surface of the support plate (2), the shaft (21) passes through the center hole (15), a driven pulley (22) is provided at the lower end of the shaft (21), a motor (14) is provided on the upper surface of the bottom plate (13), a driving pulley (141) is provided at the driving shaft end of the motor (14), and a transmission belt (142) is wound between the driving pulley (141) and the driven pulley (22).

3. A support frame for washing machine drum vibration test according to claim 1, characterized in that: The seat plate (3) has five to eight uniformly spaced edges distributed around the edge of the upper surface of the support plate (2); the extrusion head (33) is located at one end of the first screw rod (31) close to the center of the support plate (2); and the upper surface of the support plate (2) is uniformly spaced with a plurality of anti-slip grooves (23).

4. A support frame for washing machine drum vibration test according to claim 1, characterized in that: A first reinforcing rib plate (12) is arranged between the side surface of the support leg (11) and the lower surface of the workbench (1), and a second reinforcing rib plate (52) is arranged between the surface of the electric push rod (51) and the upper surface of the top plate (4), and there are four second reinforcing rib plates (52) uniformly distributed around the electric push rod (51) at equal intervals.

5. The support frame for washing machine drum vibration test according to claim 1, characterized in that: The upper surface of the workbench (1) is provided with a circular lower slide groove (16), the lower slide groove (16) is located around the center hole (15), and the lower slide groove (16) is concentric with the center hole (15). The lower surface of the support plate (2) is provided with a circular upper slide groove, and the upper slide groove is located directly above the lower slide groove (16). A plurality of rollers (17) are evenly arranged around the lower slide groove (16) at equal intervals, and the upper half of the rollers (17) are abutted against the inner wall of the upper slide groove.

6. A support frame for washing machine drum vibration test according to claim 1, characterized in that: A circular annular groove (54) is provided at the center of the lower surface of the lifting plate (53). The annular groove (54) is located directly above the support plate (2). The center of the annular groove (54) is vertically aligned with the center of the support plate (2).

7. A support frame for washing machine drum vibration test according to claim 1, characterized in that: A rotating shaft is arranged on the upper and lower surfaces of one end of the cantilever (44) close to the clamping block (43), and a rubber sleeve is arranged at the end of the rotating shaft. The end of the rotating shaft is rotatably mounted in the clamping block (43), and the rubber sleeve is located between the rotating shaft and the clamping block (43).

8. The support frame for washing machine drum vibration test according to claim 1, characterized in that: The roller (45) is flat, and the orthographic projection of the edge of the roller (45) is located inside the support plate (2).

9. A support frame for washing machine drum vibration test according to claim 1, characterized in that: Circular protruding blocks are arranged at the four corners of the lifting plate (53), and circular holes penetrating the protruding blocks are arranged on the protruding blocks, and the sliding rod (18) passes through the circular holes.

10. A support frame for washing machine drum vibration test according to claim 1, characterized in that: The four electric push rods (51) are arranged on the top plate (5) symmetrically in front and back and in left and right directions, and the front end of the extrusion head (33) is spherical.

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