A support frame for washing machine drum vibration experiment

Abstract

The application discloses a support frame for a washing machine drum vibration experiment, which comprises a workbench, a support plate, a sliding sleeve and a top plate, the support plate is rotationally installed 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 hand screw is threadedly connected in the seat plate, one end of the first hand screw is provided with a first hand screw, and the other end is provided with a pressing head; four corner positions of the upper surface of the workbench are vertically provided with sliding rods, the sliding sleeve is sleeved on the sliding rod, the surface of the sliding sleeve is provided with a second screw rod penetrating through the sliding sleeve, and the second screw rod is threadedly connected with the sliding sleeve. In the application, under the fixing action of the plurality of pressing heads and the pasting action of the four rollers, clothes with a suitable weight are put into the drum, the drum can be kept stable in the process of rapid rotation, the lower region, the middle region and the upper region of the drum can be kept stable rotation, and the state of the drum in the working process 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 a washing machine's drum during operation are key indicators of product quality. Vibration and noise testing can reveal the various performance parameters of the tested washing machine's drum, allowing assessment of its compliance with design requirements, quality, and potential areas for improvement. During operation, a washing machine's drum holds a certain amount of clothing, subjecting its inner wall to significant impact. During drum development, the drum's load capacity must meet certain standards, necessitating experimental testing. Some existing testing equipment places the drum on the device, rolls it for a certain period, then removes it and inspects its inner wall for cracks or fissures. However, due to insecure support during rotation, the drum is prone to horizontal vibration or vertical vibration, which can affect the accuracy of test results.

[0003] In view of the above problems, the present invention is proposed. 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 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 test, comprising a workbench, a support plate, a sliding sleeve, and a top plate. The support plate is rotatably mounted at the center of the upper surface of the workbench. A plurality of seat plates are provided on the edge of the upper surface of the support plate. A first screw is internally threadedly connected to the seat plate. A first screw handle is provided at one end of the first screw and an extrusion head is provided at the other end. When the drum is placed on the support plate, the extrusion head is attached to the lower surface of the drum to fix the drum.

[0007] Slide rods are vertically provided at the four corners of the upper surface of the workbench, the slide sleeve is sleeved on the slide rods, a second screw is provided on the surface of the slide sleeve, and the second screw is threadedly connected to the slide sleeve. A second screw handle is provided at one end of the second screw, and the other end abuts against the surface of the slide rod, so that the second screw fixes the slide sleeve;

[0008] The top plate is fixed to the top of the four sliding rods, and the top plate is located parallel to the top of the workbench. Four electric push rods are vertically arranged in the top plate, and the electric push rods are vertically downward. A lifting plate is provided at the end of the electric push rods. 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 provided on the upper and lower sides of the sliding sleeve, a cantilever is rotatably provided between the two clamping blocks, and a roller is rotatably provided on the end of the cantilever away from the clamping block through a rotating shaft. 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 provided at the four corner positions of the lower surface of the workbench, a base plate is provided between the four legs, a center hole is provided in the center of the upper surface of the workbench, a shaft is vertically provided at the center of the lower surface of the support plate, the shaft passes through the center hole, a driven pulley is provided at the lower end of the shaft, a motor is provided on the upper surface of the base plate, a driving pulley is provided 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 anti-slip grooves evenly distributed at equal intervals around the edge of the upper surface of the support plate, the extrusion head is located at one end of the first screw close to the center of the support plate, and the upper surface of the support plate is evenly spaced with multiple anti-slip grooves.

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

[0013] Preferably, the upper surface of the workbench is provided with 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, and 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 in the center of the lower surface of the lifting plate, the annular groove is located directly above the support plate, and the center of the annular groove is aligned with the center of the support 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, and 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, and 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 arranged on the top plate symmetrically in front and back and left and right directions, 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 works, the active pulley rotates, and through the transmission action of the transmission belt, the driven pulley can be driven to rotate, 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 lubricant 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 turn it so that the first screw and the extrusion head can move toward the roller. The extrusion head can fit on the outer surface of the roller. The extrusion head is made of rubber. Multiple extrusion heads can rest on the outer surface of the roller to firmly fix the roller.

[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 fixed action of multiple extrusion heads and the fitting action of four rollers, clothes of appropriate weight are placed into the drum. During the rapid rotation of the drum, the drum can remain stable. The lower area, middle area and upper area of ​​the drum can all maintain stable rotation to simulate the state of the drum when it is 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 three-dimensional diagram of the present invention;

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

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

[0028] Figure 4 This is a three-dimensional diagram of the sliding chute and 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; 22. Driven pulley; 23. Anti-slip groove; 3. Seat plate; 31. First screw; 32. First handle; 33. Extrusion head; 4. Sleeve; 41. Second bolt; 42. Second handle; 43. Clamp; 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 clearly and completely described 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 should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0034] like Figures 1-6 As shown, a support frame for a washing machine drum vibration test includes a workbench 1, a support plate 2, a sliding sleeve 4, and a top plate 5. The support plate 2 is rotatably mounted on the center of the upper surface of the workbench 1. A plurality of seat plates 3 are provided on the edge of the upper surface of the support plate 2. The seat plates 3 are internally threaded with a first screw 31. A first screw handle 32 is provided at one end of the first screw 31, and an extrusion head 33 is provided at the other end. By holding the first screw handle 32, the first bolt 31 can be rotated, and the first bolt 31 can move back and forth. The extrusion head 33 moves forward and can fit under the outer surface of the drum.

[0035] Slide rods 18 are vertically provided at the four corners of the upper surface of the workbench 1. The slide sleeve 4 is sleeved on the slide rod 18. The slide sleeve 4 can move up and down on the slide rod 18. A second screw rod 41 is provided on the surface of the slide sleeve 4, which passes through 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. 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 rod 16, so that the slide sleeve 4 can be fixed at a certain position on the slide rod 18;

[0036] The top plate 5 is fixed to the top of the four slide bars 18. The top plate 5 is located parallel to the top of the workbench 1. Four electric push rods 51 are vertically arranged in the top plate 5. The electric push rods 51 are vertically downward. The ends of the electric push rods 51 are provided with lifting plates 53. That is, the extension and contraction 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 provided on the upper and lower sides of the sliding sleeve 4, and a cantilever 44 is rotatably provided between the two clamping blocks 43. A roller 45 is rotatably provided on the end of the cantilever 44 away from the clamping blocks 43, that is, the cantilever 44 can rotate between the clamping blocks 43. When the cantilever 44 rotates, the roller 45 can fit into 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 provided at the four corners of the lower surface of the workbench 1, and a base plate 13 is provided between the four legs 11. A center hole 15 is provided in the center of the upper surface of the workbench 1, and a shaft rod 21 is vertically provided in the center of the lower surface of the support plate 2. The shaft rod 21 passes through the center hole 15, and a driven pulley 22 is provided at the lower end of the shaft rod 21. A motor 14 is provided on the upper surface of the base plate 13, and a driving pulley 141 is provided at the driving shaft end of the motor 14. A transmission belt 142 is wrapped 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 equally 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 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 12 is provided between the side of the support leg 11 and the lower surface of the workbench 1, and a second reinforcing rib 52 is provided between the surface of the electric push rod 51 and the upper surface of the top plate 4. There are four second reinforcing ribs 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 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 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 is abutted against the inner wall of the upper groove. 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 in 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 vertically 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 that 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 slide rod 18 passes through the circular holes, so that the lifting plate 53 slides up and down and is relatively stable.

[0046] The 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] To sum up: the motor 14 works, the active pulley 141 rotates, and the transmission belt 142 drives the driven pulley 22 to rotate, 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 lubricant is applied between the lower slide groove 16 and the roller 17, so that the support plate 2 can be relatively stable on the upper surface of the workbench 1 at a faster speed;

[0048] Place the roller to be tested horizontally on the upper surface of the support plate 2, hold the first screw handle 32 and turn 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. Multiple extrusion heads 33 can abut against the outer surface of the roller to firmly fix the roller;

[0049] The electric push rod 51 moves downward, driving the lifting plate 53 to move downward. The lifting plate 53 just moves to the upper edge of the roller. The upper edge of the roller enters the annular groove 54. Then the four cantilever arms 44 are rotated toward the center of the support plate 2, so that the four rollers 45 are attached to the outer surface of the roller. When the roller rotates, the rollers 45 can rotate with it.

[0050] Under the fixing action of multiple squeezing heads 33 and the contact action of four rollers 45, clothes of appropriate weight are placed into the drum. During the rapid rotation of the drum, the drum can remain stable. The lower area, middle area and upper area of ​​the drum can all maintain stable rotation, simulating the state of the drum when it is working.

[0051] The support plate 2 has a certain area. 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 embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A support frame for washing machine drum vibration test, characterized by: The invention comprises a workbench (1), a support plate (2), a sliding sleeve (4) and a top plate (5), wherein the support plate (2) is rotatably mounted at the center of the upper surface of the workbench (1), a plurality of seat plates (3) are provided on the edge of the upper surface of the support plate (2), and the seat plates (3) are internally threadedly connected to a first screw rod (31), and a first screw handle (32) is provided at one end of the first screw rod (31) and an extrusion head (33) is provided at the other end; Slide rods (18) are vertically provided at the four corner positions of the upper surface of the workbench (1), the slide sleeve (4) is sleeved on the slide rod (18), and 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 of the four slide bars (18), and 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), and the electric push rods (51) are vertically downward. A lifting plate (53) is provided at the end of the electric push rod (51), and the four corners of the lifting plate (53) are respectively sleeved on the four slide bars (18). The lifting plate (53) is located directly below the top plate (5) and remains parallel to the top plate (5). A circular annular groove (54) is provided in the center of the lower surface of the lifting plate (53), and the annular groove (54) is located directly above the support plate (2). The center of the annular groove (54) is aligned with the center of the support plate (2) in the upper and lower directions. Two clamping blocks (43) are provided on the upper and lower sides of the sliding sleeve (4), a cantilever (44) is rotatably provided between the two clamping blocks (43), and a roller (45) is rotatably provided at one end of the cantilever (44) away from the clamping blocks (43) via a rotating shaft.

2. A support frame for washing machine drum vibration test according to claim 1, characterized in that: Support legs (11) are vertically provided at the four corner positions of the lower surface of the workbench (1), a base plate (13) is provided between the four support 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 base 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. The support frame for washing machine drum vibration test according to claim 1, characterized in that: The seat plate (3) has five to eight anti-slip grooves (23) uniformly distributed at equal intervals 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 (31) close to the center of the support plate (2); and the upper surface of the support plate (2) is uniformly provided with multiple anti-slip grooves (23) at equal intervals.

4. The support frame for washing machine drum vibration test according to claim 2, characterized in that: A first reinforcing rib plate (12) is provided 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 provided between the surface of the electric push rod (51) and the upper surface of the top plate (4), wherein four second reinforcing rib plates (52) are evenly 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 groove (16), the lower groove (16) is located around the center hole (15), and the lower groove (16) is concentric with the center hole (15). The lower surface of the support plate (2) is provided with a circular upper groove, the upper groove is located directly above the lower groove (16), and a plurality of rollers (17) are evenly arranged around the lower groove (16) at equal intervals, and the upper half of the rollers (17) are abutted against the inner wall of the upper groove.

6. The support frame for washing machine drum vibration test according to claim 1, characterized in that: 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 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).

7. 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).

8. The support frame for washing machine drum vibration test according to claim 1, characterized in that: Circular protruding blocks are provided at the four corner positions of the lifting plate (53), and circular holes are provided on the protruding blocks and penetrate the protruding blocks, and the sliding rod (18) passes through the circular holes.

9. The 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) in a front-to-back and left-to-right symmetrical manner, and the front end of the extrusion head (33) is spherical.

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