Shock-absorbing and noise-reducing mechanism in down dehydrating machine

Abstract

The utility model discloses a shock-absorbing and noise-reducing mechanism in a down dehydrator, comprising: a bracket and an outer cylinder provided with a rotating gallbladder, a radial shock-absorbing assembly and an axial shock-absorbing assembly are provided between a connecting plate of the outer cylinder and a receiving plate of the bracket, the radial shock-absorbing assembly comprises: a ball seat, a ball column, a compensation slider, a sliding seat and an elastic rubber tube; the axial shock-absorbing assembly comprises: a lower U-shaped shell, an upper U-shaped shell and a shock-absorbing pad; the connecting plate and the ball seat, the upper U-shaped shell, and the receiving plate and the sliding seat, the lower U-shaped shell are all connected by bolts, a combined anti-loosening washer is set on the bolt, a first shock-absorbing washer is adhered to the round head of the bolt, a second shock-absorbing washer is adhered to the ball seat, the upper U-shaped shell, the sliding seat and the lower U-shaped shell, and the combined anti-loosening washer abuts against the first shock-absorbing washer and the second shock-absorbing washer. The utility model can achieve excellent shock-absorbing effect and can also prevent noise from being generated due to loose bolts.

Description

Technical Field

[0001] The utility model relates to the field of washing equipment, in particular to a shock-absorbing and noise-reducing mechanism in a down dehydrating machine. Background Art

[0002] Down dehydrator is a device that can centrifugally dehydrate down. There are many small holes evenly distributed on the rotor. When the motor drives the rotor to rotate, the down and water are separated during the high-speed rotation. The water is discharged from the small holes under the centrifugal force, while the down is retained in the rotor due to its large volume. When the rotor rotates at high speed, it will cause vibration between the outer cylinder and the bracket where the rotor is installed. The vibration will not only produce huge noise, but also affect the stability of the entire equipment. For example, the connecting bolts connecting the outer cylinder and the bracket are prone to loosening, causing the outer cylinder to vibrate more significantly and there is a risk of tipping over. The shock-absorbing mechanism currently on the market is not only complex in structure, but also ineffective. Utility Model Content

[0003] The utility model aims to provide a shock-absorbing and noise-reducing mechanism in a down dehydrating machine which has a simple structure, good shock-absorbing effect and can reduce vibration noise.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a shock-absorbing and noise-reducing mechanism in a down dehydrating machine, comprising: a bracket and an outer cylinder provided with a rotating bladder, a plurality of connecting plates are evenly distributed on the circumference of the outer wall of the outer cylinder, and receiving plates with the same number as the connecting plates are evenly distributed on the circumference of the bracket, and a radial shock-absorbing component and an axial shock-absorbing component are arranged between each pair of connecting plates and receiving plates aligned up and down, and the radial shock-absorbing component comprises: a ball seat, a ball column, a compensation slider, a sliding seat and an elastic rubber tube, the ball seat is fixed on the connecting plate, a hemispherical groove is arranged on the bottom wall of the ball seat, the sliding seat is fixed on the receiving plate, a sliding groove is arranged in the sliding seat, the compensation slider is slidably arranged in the sliding groove, the ball column is slidably arranged on the compensation slider, and the semicircular ball on the ball column slides and is inserted into the hemispherical groove. The elastic rubber tube is compressed and sleeved on the sliding seat and abuts on the connecting plate, and the ball seat is located in the elastic rubber tube; the axial shock-absorbing assembly comprises: a lower U-shaped shell, an upper U-shaped shell and a shock-absorbing pad, the lower U-shaped shell is inverted and connected to the receiving plate, the upper U-shaped shell and the lower U-shaped shell are staggered and connected to the connecting plate, and the shock-absorbing pad is arranged between the staggered upper U-shaped shell and the lower U-shaped shell; the connecting plate and the ball seat, the upper U-shaped shell, and the receiving plate and the sliding seat, the lower U-shaped shell are all connected by bolts, a combined anti-loosening washer is sleeved on the bolt, a first shock-absorbing washer is adhered to the round head of the bolt, a second shock-absorbing washer is adhered to the ball seat, the upper U-shaped shell, the sliding seat and the lower U-shaped shell that are in contact with the combined anti-loosening washer, and the combined anti-loosening washer abuts against the first shock-absorbing washer and the second shock-absorbing washer.

[0005] Furthermore, in the aforementioned shock-absorbing and noise-reducing mechanism of the down dehydrator, a central through hole is arranged at the center of the compensating slider, a plurality of guide grooves are evenly distributed on the top wall of the compensating slider, grease is poured into the slide groove, and grease is also poured on the top wall of the compensating slider.

[0006] Furthermore, the shock-absorbing and noise-reducing mechanism in the aforementioned down dehydrator is characterized in that a first limiting hole is provided on the receiving plate, a first boss is provided on the sliding seat, when the sliding seat is connected to the receiving plate, the first boss on the sliding seat is inserted into the first limiting hole on the receiving plate, and a third shock-absorbing washer is provided between the sliding seat and the receiving plate; a second limiting hole is provided on the connecting plate, a second boss is provided on the ball seat, when the ball seat is connected to the connecting plate, the second boss on the ball seat is inserted into the second limiting hole of the connecting plate, and a fourth shock-absorbing washer is provided between the ball seat and the connecting plate.

[0007] Furthermore, in the aforementioned down dehydrator, a shock-absorbing and noise-reducing mechanism is provided, wherein a boss is provided on the sliding seat, a downwardly protruding positioning ring is provided on the connecting plate, the ball seat is located in the positioning ring, the positioning ring is coaxial with the boss, and the upper and lower ends of the elastic rubber tube are respectively mounted on the boss and the positioning ring.

[0008] Furthermore, the shock-absorbing and noise-reducing mechanism in the aforementioned down dehydrator is provided, wherein a first through hole is provided in the shock-absorbing pad, a second through hole is provided on the top wall of the lower U-shaped shell, and a third through hole is provided on the bottom wall of the upper U-shaped shell, and a limit pin is movably inserted between the first through hole, the second through hole and the third through hole, and the upper and lower ends of the limit pin respectively abut against the outer top wall of the lower U-shaped shell and the outer bottom wall of the upper U-shaped shell, a first avoidance hole aligned with the limit pin in upper and lower directions is provided on the connecting plate, and a second avoidance hole aligned with the limit pin in upper and lower directions is provided on the receiving plate.

[0009] Furthermore, in the aforementioned down dehydrator, an upper limit ring disk is provided on the inner top wall of the lower U-shaped shell, an upper rib is extended downwardly around the upper limit ring disk, a lower limit ring disk is provided on the inner bottom wall of the upper U-shaped shell, a lower rib is extended upwardly around the lower limit exchange disk, and a shock-absorbing pad is provided between the upper limit disk and the lower limit disk.

[0010] Furthermore, in the aforementioned shock-absorbing and noise-reducing mechanism of the down dehydrator, positioning grooves are arranged on the ball seat, the upper U-shaped shell, the sliding seat and the lower U-shaped shell, and the second shock-absorbing gasket is inserted into and adhered to the positioning groove.

[0011] Furthermore, in the aforementioned shock-absorbing and noise-reducing mechanism of the down dehydrator, an outward-expanding bell mouth is extended on the hemispherical groove.

[0012] Furthermore, in the aforementioned shock-absorbing and noise-reducing mechanism of the down dehydrator, a group of radial shock-absorbing components and two groups of axial shock-absorbing components are arranged between each pair of vertically aligned connecting plates and receiving plates, and the two groups of axial shock-absorbing components are symmetrically arranged with the radial shock-absorbing components as the center.

[0013] The advantages of the utility model are: by arranging the radial shock-absorbing assembly and the axial shock-absorbing assembly, the radial and axial vibration intensity of the outer cylinder when the rotor is rotating can be effectively reduced, so that the outer cylinder can remain stable during the rotation of the rotor; by using the combined anti-loosening washers, the bolts can be prevented from loosening, so that the connection strength between the outer cylinder and the bracket and the radial shock-absorbing assembly and the axial shock-absorbing assembly respectively can be ensured, so that the radial shock-absorbing assembly and the axial shock-absorbing assembly can play a better shock-absorbing role, and the flexible connection between the combined anti-loosening washers and the first shock-absorbing washers and the second shock-absorbing washers can not only reduce the vibration noise between the combined anti-loosening washers and the bolts and various connecting parts, but also improve the self-locking performance of the combined anti-loosening washers by increasing the friction between the combined anti-loosening washers and the first shock-absorbing washers and the second shock-absorbing washers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the vibration reduction and noise reduction mechanism in the down dehydrating machine described in the utility model, viewed from above.

[0015] Figure 2 yes Figure 1 Schematic diagram of the middle half structure.

[0016] Figure 3 yes Figure 1 Schematic diagram of the structure of the mid-radial shock absorber assembly.

[0017] Figure 4 yes Figure 1 Schematic diagram of the structure of the mid-axial shock absorber assembly.

[0018] Figure 5 yes Figure 3 Schematic diagram of the local enlarged structure in the A direction. DETAILED DESCRIPTION

[0019] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0020] like Figure 1 to Figure 5As shown, the shock-absorbing and noise-reducing mechanism in the down dehydrating machine described in the utility model comprises: a bracket 1 and an outer cylinder 2 provided with a rotating bladder, three connecting plates 21 are evenly distributed circumferentially on the outer side wall of the outer cylinder 2, and receiving plates 11 with the same number as the connecting plates 21 are evenly distributed circumferentially on the bracket 1, and a group of radial shock-absorbing components 3 and two groups of axial shock-absorbing components 4 are provided between each pair of upper and lower aligned connecting plates 21 and receiving plates 11, and the two groups of axial shock-absorbing components 4 are symmetrically arranged with the radial shock-absorbing component 3 as the center.

[0021] The radial damping assembly 3 includes: a ball seat 31, a ball column 32, a compensation slider 33, a sliding seat 34 and an elastic rubber tube 35. The ball seat 31 is fixed on the connecting plate 21, a second limiting hole 211 is opened on the connecting plate 21, a second boss 311 is arranged on the ball seat 31, and the second boss 311 on the ball seat 31 is inserted into the second limiting hole 211 of the connecting plate 21. A hemispherical groove 312 is arranged on the bottom wall of the ball seat 31, and an outwardly expanded bell mouth 313 is extended on the hemispherical groove 312. The sliding seat 34 is fixed on the receiving plate 11, and a first limiting hole 111 is opened on the receiving plate 11. A first boss 341 is provided on the sliding seat 34, and the first boss 341 on the sliding seat 34 is inserted into the first limiting hole 111 on the receiving plate 11. A slide groove 342 is provided in the sliding seat 34, and the compensation slider 33 is slidably provided in the slide groove 342. A central through hole is provided in the center of the compensation slider 33, and a plurality of guide grooves 331 are evenly distributed on the top wall of the compensation slider 33. Grease is poured into the slide groove 342 to reduce the friction between the compensation slider 33 and the slide groove 342. Grease is also poured on the top wall of the compensation slider 33, and the grease on the compensation slider 33 accumulates in the guide groove 331 and The grease stored in the central through hole can be replenished into the slide groove 342 during the movement of the compensation slider 33, thereby ensuring that there is sufficient lubricity in the slide groove 342. The ball column 32 is slidably arranged on the compensation slider 33. Since there is a guide groove 331 on the top of the compensation slider 33, the storage amount of grease on the compensation slider 33 can be increased, and the contact area between the ball column 32 and the compensation slider 33 can be reduced, thereby improving the sliding smoothness between the ball column 32 and the compensation slider 33. The semi-circular ball 321 on the ball column 32 slides into the semi-spherical groove 312, and the semi-circular ball 321 and the semi-spherical groove 312 are A gap will be left between the bell mouths 313, which is convenient for installation and helps to dissipate heat when the hemispherical ball 321 moves in the hemispherical groove 312, thereby preventing the hemispherical ball 321 from getting stuck due to friction, heat and expansion. A boss is provided on the sliding seat 34, and a downwardly protruding positioning ring 212 is provided on the connecting plate 21. The ball seat 31 is located in the positioning ring 212, and the positioning ring 212 is coaxial with the boss. The upper end of the compressed elastic rubber tube 35 is sleeved on the positioning ring 212 and abuts against the connecting plate 21, and the lower end of the compressed elastic rubber tube 35 is sleeved on the boss and abuts against the sliding seat 34.

[0022] The ball column 32 cooperates with the ball seat 31 to play a supporting role. When the outer cylinder 2 vibrates radially, no matter in which horizontal direction the outer cylinder 2 vibrates, the semi-circular ball 321 on the ball column 32 cooperates with the semi-spherical groove 312 on the ball seat 31 to move freely within a certain range, thereby absorbing vibration energy and achieving a shock-absorbing effect. The sliding connection between the ball column 32 and the compensation slider 33, and the sliding connection between the compensation slider 33 and the slide groove 342 can form a multi-stage friction shock-absorbing structure, which further achieves a shock-absorbing effect. The cooperation between the semi-circular ball 321 and the semi-spherical groove 312 can also make the ball column 32 have an automatic centering function. When the three semi-circular balls 321 in the three groups of radial shock-absorbing assemblies 3 have the automatic centering function at the same time, the triangle centering principle is used to ensure that the outer cylinder 2 always remains in the center position, thereby preventing additional vibration due to the eccentricity of the outer cylinder 2. When the outer cylinder 2 vibrates radially, the compressed elastic rubber tube 35 can offset part of the vibration energy by twisting. Moreover, since the elastic rubber tube 35 is pre-compressed and deformed and pre-loaded with compression, it has excellent damping characteristics. Therefore, when it is twisted by radial vibration, the elastic rubber tube 35 can play a good shock-absorbing role and is not prone to tearing and displacement. By setting up multiple flexible structures, the radial shock-absorbing effect of the radial shock-absorbing assembly 3 can be greatly improved.

[0023] The axial damping assembly 4 includes: a lower U-shaped shell 41, an upper U-shaped shell 42 and a damping pad 43. The lower U-shaped shell 41 is connected to the receiving plate 11 after being inverted. An upper limit ring disk 411 is arranged on the inner top wall of the lower U-shaped shell 41. An upper retaining edge 412 is arranged to extend downward around the upper limit ring disk 411. The upper U-shaped shell 42 is connected to the connecting plate 21 after being staggered with the lower U-shaped shell 41. A lower limit ring disk 421 is arranged on the inner bottom wall of the upper U-shaped shell 42. A lower retaining edge 422 is arranged to extend upward around the lower limit disk 421. The damping pad 43 is arranged between the upper limit disk 411 and the lower limit disk 421. The upper retaining edge 412 on the upper limit disk 411 and the lower retaining edge in the lower limit disk 421 422 serves as a limit for the shock-absorbing pad 43. A first through hole is provided in the shock-absorbing pad 43, a second through hole is provided on the top wall of the lower U-shaped shell 41, and a third through hole is provided on the bottom wall of the upper U-shaped shell 42. A limit pin 44 is movably inserted between the first through hole, the second through hole and the third through hole. The upper and lower ends of the limit pin 44 respectively abut against the outer top wall of the lower U-shaped shell 41 and the outer bottom wall of the upper U-shaped shell 42. A first avoidance hole 213 aligned with the limit pin 44 in upper and lower directions is provided on the connecting plate 21, and a second avoidance hole 112 aligned with the limit pin 44 in upper and lower directions is provided on the receiving plate 11. The apertures of the first avoidance hole 213 and the second avoidance hole 112 are both larger than the maximum outer diameter of the limit pin 44.

[0024] When the outer cylinder 2 vibrates axially, energy absorption and shock absorption are achieved by compressing the shock-absorbing pad 43. When the shock-absorbing pad 43 is compressed, the limit pin 44 will pass upward through the first avoidance hole 213 on the connecting plate 21 or downward through the second avoidance hole 112 on the receiving plate 11 to prevent interference with the limit pin 44 and affect the shock absorption effect. The upper limit plate 411, the lower limit plate 421 and the limit pin 44 can play a role of radial limiting the shock-absorbing pad 43 to prevent the shock-absorbing pad 43 from being torn when the outer cylinder 2 vibrates radially.

[0025] In order to prevent large vibration noises from occurring between the radial shock absorbing assembly 3 and the axial shock absorbing assembly 4 and the connecting plate 21 and the socket plate 11 during vibration, a fourth shock absorbing washer 314 is arranged between the ball seat 31 of the radial shock absorbing assembly 3 and the connecting plate 21, a third shock absorbing washer 343 is arranged between the sliding seat 34 of the radial shock absorbing assembly 3 and the socket plate 11, a first shock absorbing gasket 413 is arranged between the lower U-shaped shell 41 of the axial shock absorbing assembly 4 and the socket plate 11, and a second shock absorbing gasket 423 is arranged between the upper U-shaped shell 42 of the axial shock absorbing assembly 4 and the connecting plate 21, so that the amount of noise generated during vibration can be reduced.

[0026] The connecting plate 21 and the ball seat 31, the upper U-shaped shell 42, and the receiving plate 11 and the sliding seat 34, the lower U-shaped shell 41 are all connected by bolts 5, and a combined anti-loosening washer 51 is mounted on the bolt 5. The combined anti-loosening washer 51 in this embodiment can be a combined anti-loosening washer produced by Shanghai Samerui Industrial Machinery Co., Ltd., whose publication number is: CN202628750U, and a first shock-absorbing washer 52 is adhered to the round head of the bolt 5, and a positioning groove 53 is provided on the ball seat 31, the upper U-shaped shell 42, the sliding seat 34 and the lower U-shaped shell 41 that are in contact with the combined anti-loosening washer 51, and a second shock-absorbing washer 54 is clamped and adhered in the positioning groove 53, and the combined anti-loosening washer 51 abuts against the first shock-absorbing washer 52 and the second shock-absorbing washer 54.

[0027] When vibration occurs, the self-locking function of the combined anti-loosening washer 51 can prevent the bolt 5 and the components threadedly connected thereto from falling off. After the combined anti-loosening washer 51 abuts against the first shock-absorbing washer 52 and the second shock-absorbing washer 54, the vibration noise of the combined anti-loosening washer 51, the bolt 5 and the connecting components can be reduced when vibration occurs. Moreover, when the outer surface serrations on the combined anti-loosening washer 51 contact the first shock-absorbing washer 52 and the second shock-absorbing washer 54, the friction between the combined anti-loosening washer 51, the bolt 5 and the connecting components can be increased, thereby further improving the self-locking performance of the combined anti-loosening washer 51 during vibration.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the utility model should be included in the scope of protection of the claims of the utility model.

Claims

1. The shock-absorbing and noise-reducing mechanism in the down dehydrating machine includes: A bracket and an outer cylinder with a rotating gallbladder, characterized in that: a plurality of connecting plates are evenly distributed on the circumference of the outer side wall of the outer cylinder, and receiving plates with the same number as the connecting plates are evenly distributed on the circumference of the bracket, and a radial shock-absorbing component and an axial shock-absorbing component are arranged between each pair of connecting plates and receiving plates aligned up and down, and the radial shock-absorbing component includes: a ball seat, a ball column, a compensation slider, a sliding seat and an elastic rubber tube, the ball seat is fixed on the connecting plate, a hemispherical groove is arranged on the bottom wall of the ball seat, the sliding seat is fixed on the receiving plate, a sliding groove is arranged in the sliding seat, the compensation slider is slidably arranged in the sliding groove, the ball column is slidably arranged on the compensation slider, the semi-circular ball on the ball column slides and is inserted into the hemispherical groove, and the elastic rubber tube is compressed and sleeved on the sliding seat and presses against Leaning against the connecting plate, the ball seat is located in the elastic rubber tube; the axial shock-absorbing assembly comprises: a lower U-shaped shell, an upper U-shaped shell and a shock-absorbing pad, the lower U-shaped shell is inverted and connected to the receiving plate, the upper U-shaped shell and the lower U-shaped shell are staggered and connected to the connecting plate, and the shock-absorbing pad is arranged between the staggered upper U-shaped shell and the lower U-shaped shell; the connecting plate and the ball seat, the upper U-shaped shell, and the receiving plate and the sliding seat, the lower U-shaped shell are all connected by bolts, a combined anti-loosening washer is mounted on the bolt, a first shock-absorbing washer is adhered to the round head of the bolt, a second shock-absorbing washer is adhered to the ball seat, the upper U-shaped shell, the sliding seat and the lower U-shaped shell that are in contact with the combined anti-loosening washer, and the combined anti-loosening washer rests on the first shock-absorbing washer and the second shock-absorbing washer.

2. The vibration reduction and noise reduction mechanism in the down dehydrator according to claim 1, characterized in that: A central through hole is arranged at the center of the compensating slide block, a plurality of guide grooves are evenly distributed on the top wall of the compensating slide block, grease is poured into the guide grooves, and grease is also poured on the top wall of the compensating slide block.

3. The vibration reduction and noise reduction mechanism in the down dehydrator according to claim 1, characterized in that: A first limiting hole is provided on the supporting plate, and a first boss is provided on the sliding seat. When the sliding seat is connected to the supporting plate, the first boss on the sliding seat is inserted into the first limiting hole on the supporting plate, and a third shock-absorbing washer is provided between the sliding seat and the supporting plate; a second limiting hole is provided on the connecting plate, and a second boss is provided on the ball seat. When the ball seat is connected to the connecting plate, the second boss on the ball seat is inserted into the second limiting hole of the connecting plate, and a fourth shock-absorbing washer is provided between the ball seat and the connecting plate.

4. The vibration reduction and noise reduction mechanism in the down dehydrator according to claim 1, characterized in that: A convex shoulder is arranged on the sliding seat, a downwardly protruding positioning ring is arranged on the connecting plate, the ball seat is located in the positioning ring, the positioning ring is coaxial with the convex shoulder, and the upper and lower ends of the elastic rubber tube are respectively mounted on the convex shoulder and the positioning ring.

5. The vibration reduction and noise reduction mechanism in the down dehydrator according to claim 1, characterized in that: A first through hole is arranged in the shock-absorbing pad, a second through hole is arranged on the top wall of the lower U-shaped shell, a third through hole is arranged on the bottom wall of the upper U-shaped shell, a limit pin is movably inserted between the first through hole, the second through hole and the third through hole, the upper and lower ends of the limit pin respectively abut against the outer top wall of the lower U-shaped shell and the outer bottom wall of the upper U-shaped shell, a first avoidance hole aligned with the limit pin in upper and lower directions is arranged on the connecting plate, and a second avoidance hole aligned with the limit pin in upper and lower directions is arranged on the receiving plate.

6. The vibration reduction and noise reduction mechanism in the down dehydrator according to claim 5, characterized in that: An upper limit ring disk is arranged on the inner top wall of the lower U-shaped shell, and upper ribs are extended downwardly around the upper limit ring disk. A lower limit ring disk is arranged on the inner bottom wall of the upper U-shaped shell, and lower ribs are extended upwardly around the lower limit exchange disk. A shock-absorbing pad is arranged between the upper limit disk and the lower limit disk.

7. The vibration reduction and noise reduction mechanism in the down dehydrator according to claim 1, characterized in that: The ball seat, the upper U-shaped shell, the sliding seat and the lower U-shaped shell are all provided with positioning grooves, and the second shock-absorbing washer is inserted into and adhered to the positioning grooves.

8. The vibration reduction and noise reduction mechanism in the down dehydrator according to claim 1, characterized in that: An outward-expanding bell mouth is extended on the hemispherical groove.

9. The vibration reduction and noise reduction mechanism in a down dehydrating machine according to any one of claims 1 to 8, characterized in that: A set of radial damping components and two sets of axial damping components are arranged between each pair of vertically aligned connecting plates and receiving plates, and the two sets of axial damping components are symmetrically arranged with the radial damping components as the center.

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