A deceleration roof washing machine

Abstract

The utility model relates to railway maintenance equipment technical field, concretely relates to a rough washing machine of retarder, including support frame, retarder support unit, lifting unit and rough washing oil collecting unit, simple structure, one aspect utilizes retarder support unit and the retarder that waits for rough washing to connect, and through lifting unit control its rough washing in rough washing oil collecting unit and moves up and down and carries out rough washing, removes surface sundries, simple structure low cost, and reduce artificial rough washing cost and difficulty, provide rough washing efficiency, on the other hand utilize rough washing oil collecting unit to the oil liquid on the retarder carries out collection, avoids pollution, after the standing through the drain outlet, the precipitated sundries are discharged, the precipitated oil liquid can be recycled through the oil outlet, further reduce cost.

Description

Technical Field

[0001] This utility model relates to the technical field of railway maintenance equipment, specifically to a deceleration top washing machine. Background Technology

[0002] Speed ​​reducers are commonly used speed control devices in railway marshalling yards. After long-term use, their cylinder assembly components accumulate a large amount of oil, mud, and other impurities on their surface, requiring regular cleaning before maintenance and reuse. To improve the speed reduction and safety performance of speed reducers, the new speed reducer maintenance standard, "Requirements for Installation, Operation, and Maintenance of Railway Vehicle Speed ​​Reducers" (Q / CR482-2017), stipulates that the hydraulic oil of speed reducers must be changed every two years. This means that all speed reducers on site must be disassembled, cleaned, and reassembled, resulting in a heavy workload.

[0003] Currently, the cleaning of speed reducers is mostly done by manual brushing or simple soaking, which is labor-intensive and inefficient, greatly affecting the maintenance of speed reducers. In addition, manual cleaning causes the oil to scatter and be difficult to collect, resulting in waste and increased costs. It also causes environmental pollution and cannot meet the cleaning requirements of speed reducers. Utility Model Content

[0004] The purpose of this invention is to provide a deceleration top roughing machine to solve the technical problem of high cost of deceleration top roughing.

[0005] The solution of this utility model to the above-mentioned technical problems is as follows: A deceleration top coarse washing machine includes a support frame, a deceleration top support unit, a lifting unit, and a coarse washing oil collection unit; Both the lifting unit and the coarse washing oil collection unit are connected to the support frame. The deceleration top support unit is connected to the support frame for lifting via the lifting unit. The lifting unit drives the deceleration top support unit to move up and down in the coarse washing oil collection unit. The coarse washing oil collection unit is located below the deceleration top support unit. The bottom of the coarse washing oil collection unit is provided with a drain port, and the side of the coarse washing oil collection unit is provided with an oil drain port.

[0006] Further defined, the deceleration top support unit includes a top support plate, support rods, and a bottom support plate. There are multiple support rods, which are circumferentially spaced around the axis of the top support plate. The support rods are connected between the top support plate and the bottom support plate. The bottom support plate has multiple support holes, which are circumferentially spaced along the bottom support plate. The output end of the lifting unit is connected to the top support plate.

[0007] Further defined, the lifting unit includes a lifting drive plate, a lifting guide rail, a lifting drive, a lifting screw, a lifting slider, and a lifting connecting plate; The fixed end of the lifting drive is connected to the support frame, and the output end of the lifting drive is connected to the bottom of the lifting screw. The lifting screw is vertically set and rotatably connected to the support frame. There are two lifting guide rails, which are set on opposite sides of the lifting screw. The lifting drive plate is connected between the two lifting guide rails. The end of the lifting drive plate is slidably connected to the corresponding lifting guide rail through a lifting slider. The top of the lifting screw passes through the lifting drive plate and is threadedly connected to the lifting drive plate. The end of the lifting connecting plate is connected between the lifting slider and the lifting drive plate, and the beginning of the lifting connecting plate is connected to the top support plate.

[0008] Furthermore, the lifting unit also includes a protective cover, which is located on one side of the deceleration top support unit. The protective cover has a movable groove, and both lifting guide rails are located inside the protective cover. The first end of the lifting connecting plate extends through the movable groove to the outside of the protective cover, and the top of the lifting screw is rotatably connected to the top of the protective cover.

[0009] Furthermore, the protective cover is provided with limit switches, and the number of limit switches is two, with the two limit switches arranged vertically at an interval.

[0010] Furthermore, the deceleration top washing machine also includes a rotating unit, the fixed end of which is connected to the supporting top plate, and the output end of which is connected to the supporting bottom plate.

[0011] Further specifying, the rotating unit includes a rotating drive and a rotating connecting plate; The fixed end of the rotation drive is connected to the top support plate, and the output end of the rotation drive extends through the top support plate to the bottom of the top support plate and is rotatably connected to the top support plate. The top of each support rod is connected to the output end of the rotation drive through a rotating connecting plate.

[0012] Further specifying, the coarse washing oil collection unit includes an oil collection cylinder and a washing mechanism. The oil collection cylinder is connected to a support frame. The oil collection cylinder is equipped with a drain valve and an oil drain valve. The drain outlet is located at the bottom of the oil collection cylinder, and the drain valve is connected to the drain outlet. The oil drain outlet is located on the side of the oil collection cylinder, and the oil drain valve is connected to the oil drain outlet. The number of the washing mechanisms is multiple, and the multiple washing mechanisms are spaced apart around the axis of the oil collecting cylinder on the inner wall of the oil collecting cylinder. The support hole is opposite to the washing mechanism, and the bottom of the oil collecting cylinder is conical.

[0013] Further specifying, the washing mechanism includes a vertical brush, a horizontal brush, and a connecting block. A support ring plate is provided inside the oil collecting cylinder, and the support ring plate is coaxially arranged with the oil collecting cylinder. The vertical brush and the horizontal brush are both connected between the support ring plate and the inner wall of the oil collecting cylinder, and the vertical brush and the horizontal brush are arranged opposite to each other. The vertical cross-section of the connecting block is triangular, and the horizontal brush is connected to the inclined surface of the connecting block. The bottom surface of the connecting block is horizontal.

[0014] Furthermore, the deceleration top washing machine also includes a sludge collection box, which is located below the sewage outlet. Rollers are provided at the bottom of the sludge collection box and the bottom of the support frame.

[0015] The beneficial effects of this utility model are as follows: 1. This utility model has a simple structure. On the one hand, it uses a deceleration top support unit to connect with the deceleration top to be coarsely washed, and controls its up and down movement in the coarse washing oil collection unit through a lifting unit to perform coarse washing and remove surface impurities. The structure is simple and low-cost, and it reduces the cost and difficulty of manual coarse washing and improves the efficiency of coarse washing. On the other hand, the coarse washing oil collection unit collects the oil on the deceleration top to avoid pollution. After settling, the sedimented impurities are discharged through the drain port, and the sedimented oil can be recovered through the oil drain port, further reducing costs.

[0016] 2. This utility model improves cleanliness and ensures clear quality by adding a rotating unit, which enables the deceleration top support unit to drive the deceleration top to be coarsely washed to move up and down in the coarse washing oil collection unit while rotating for coarse washing, thereby further improving the efficiency of coarse washing.

[0017] 3. This utility model constrains the lifting and lowering of the deceleration top support unit by setting two limit switches on the protective cover, ensuring the safety and reliability of the rough washing; by setting a sludge collection box below the drain outlet, it is easier to collect debris, making operation convenient and simple, and improving the overall rough washing efficiency. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the deceleration top washing machine of this utility model; Figure 2 This is a structural diagram of the lifting unit of this utility model; Figure 3 This is a schematic diagram showing the connection between the deceleration top support unit and the rotation unit of this utility model; Figure 4 This is a side view of the coarse washing and oil collection unit of this utility model; Figure 5 This is a structural diagram of the coarse washing and oil collection unit of this utility model; Figure 6 for Figure 5 Enlarged diagram of part A in the middle; Figure 7 This is a top view of the coarse washing and oil collection unit of this utility model.

[0019] In the diagram, 10-support frame; 20-reduction top support unit; 21-support top plate; 22-support rod; 23-support base plate; 24-support hole; 30-lifting unit; 31-lifting drive plate; 32-lifting guide rail; 33-lifting drive; 34-lifting screw; 35-lifting slider; 36-lifting connecting plate; 37-protective cover; 38-limit switch; 40-rotation unit; 41-rotation drive; 42-rotation connecting plate; 50-coarse washing oil collection unit; 51-oil collection cylinder; 52-drain valve; 53-oil drain valve; 54-vertical brush; 55-horizontal brush; 56-connecting block; 57-support ring plate; 60-sludge collection box; 61-roller; 70-reduction top. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Example 1 refer to Figures 1-7This utility model provides a deceleration top rough washing machine, including a support frame 10, a deceleration top support unit 20, a lifting unit 30, and a rough washing oil collection unit 50. The lifting unit 30 and the rough washing oil collection unit 50 are both connected to the support frame 10. The deceleration top support unit 20 is vertically connected to the support frame 10 via the lifting unit 30. The rough washing oil collection unit 50 is located below the deceleration top support unit 20. The deceleration top support unit 20 is used to connect the deceleration top 70 to be rough washed. During rough washing, the lifting unit 30 drives the deceleration top support unit 20 to the rough washing oil collection unit. The unit 50 moves up and down to remove sand and other debris from the deceleration top 70. The bottom of the coarse washing oil collection unit 50 is equipped with a drain port, and the side of the coarse washing oil collection unit 50 is equipped with an oil drain port. After the coarse washing is completed, the coarse washing oil collection unit 50 can collect the oil on the deceleration top 70 and then let it settle. The debris at the bottom is discharged through the drain port for unified treatment, and the oil after impurity removal is discharged through the oil drain port for collection, which is convenient for recycling, reduces costs and environmental pollution, has a simple structure, low cost, is easy to operate, improves the cleaning efficiency of the deceleration top, and meets the actual use needs.

[0025] Preferably, a sludge collection box 60 is provided below the coarse washing oil collection unit 50. When in use, the sludge collection box 60 is opposite to the drain outlet, and the sludge oil can be collected by opening the drain outlet. To facilitate movement, rollers 61 are provided at the bottom of the sludge collection box 60. At the same time, to facilitate movement of the deceleration top coarse washing machine, rollers 61 are also provided at the bottom of the support frame 10. The rollers 61 are locked during operation.

[0026] For details, please refer to Figure 2 The lifting unit 30 includes a lifting drive plate 31, a lifting guide rail 32, a lifting drive 33, a lifting screw 34, a lifting slider 35, and a lifting connecting plate 36.

[0027] The fixed end of the lifting drive 33 is connected to the support frame 10, and the output end of the lifting drive 33 is connected to the bottom of the lifting screw 34. The lifting screw 34 is vertically set and rotatably connected to the support frame 10. There are two lifting guide rails 32, which are set on opposite sides of the lifting screw 34 and connected to the support frame 10. The lifting drive plate 31 is connected between the two lifting guide rails 32. At this time, the end of the lifting drive plate 31 is slidably connected to the corresponding lifting guide rail 32 through the lifting slider 35. The top of the lifting screw 34 passes through the lifting drive plate 31 and is threadedly connected to the lifting drive plate 31, so that when the lifting drive 33 drives the lifting screw 34 to rotate, it can drive the lifting drive plate 31 to move up and down.

[0028] The end of the lifting connecting plate 36 is connected between the lifting slider 35 and the lifting drive plate 31, so that the lifting connecting plate 36 can move up and down synchronously with the lifting drive plate 31. The head of the lifting connecting plate 36 is connected to the deceleration top support unit 20, which is used to drive the deceleration top 70 to immerse in the coarse washing oil collection unit 50 and then move up and down to perform coarse washing.

[0029] To further explain, in order to increase operational safety, the lifting unit 30 also includes a protective cover 37. The protective cover 37 is located on one side of the deceleration top support unit 20 and is connected to the support frame 10. The protective cover 37 is sleeved on the outside of the two lifting guide rails 32. The lifting drive 33 is located below the protective cover 37 and inside the support frame 10. At this time, the protective cover 37 has a movable groove. The first end of the lifting connecting plate 36 extends through the movable groove to the outside of the protective cover 37. The lifting connecting plate 36 moves up and down along the movable groove during operation. The lifting screw 34 is located inside the protective cover 37, and the top of the lifting screw 34 is rotatably connected to the top of the protective cover 37 to improve the overall strength of the lifting screw 34.

[0030] To further explain, the protective cover 37 is equipped with two limit switches 38, which are spaced vertically apart. This ensures that the lifting drive plate 31 stops when it moves up and down to the position of the corresponding limit switch 38, thus guaranteeing safe and reliable operation.

[0031] refer to Figure 3 The deceleration top support unit 20 includes a support top plate 21, support rods 22, and a support bottom plate 23. There are multiple support rods 22, which are circumferentially spaced around the axis of the support top plate 21. The support rods 22 are connected between the support top plate 21 and the support bottom plate 23. The support bottom plate 23 has multiple support holes 24, which are spaced along the circumference of the support bottom plate 23. In use, the deceleration top 70 to be coarsely cleaned is matched with the corresponding support hole 24. Optionally, connecting screw holes can be opened on the periphery of the support hole 24, and bolts are used to ensure the reliability of the connection between the deceleration top 70 and the support bottom plate 23 during coarse cleaning.

[0032] Optionally, the support hole 24 can be of various diameters to be used with different models of deceleration tops 70, increasing the applicability and further meeting the actual deceleration top clearing requirements.

[0033] At this time, the first end of the lifting connecting plate 36 is connected to the top of the supporting top plate 21, and the lifting connecting plate 36 moves up and down, driving the deceleration top 70 to move up and down.

[0034] Preferably, the deceleration top rough washing machine also includes a rotating unit 40. The fixed end of the rotating unit 40 is connected to the supporting top plate 21, and the output end of the rotating unit 40 is connected to the supporting bottom plate 23. It is used to drive the deceleration top 70 to rotate in the rough washing oil collection unit 50 during rough washing through the supporting bottom plate 23, so as to ensure that the rough washing is more thorough and complete, ensure the quality of rough washing, and improve the efficiency of rough washing. Therefore, in the actual rough washing operation, it is possible to choose to move up and down in the rough washing oil collection unit 50 for rough washing or to rotate in the rough washing oil collection unit 50 for rough washing. It is also possible to move up and down and rotate in the rough washing oil collection unit 50 simultaneously or alternately.

[0035] For further explanation, please refer to Figures 4-7 The coarse washing oil collection unit 50 includes an oil collection cylinder 51 and a washing mechanism. The oil collection cylinder 51 is connected to the support frame 10. The oil collection cylinder 51 is equipped with a drain valve 52 and an oil drain valve 53. The drain outlet is located at the bottom of the oil collection cylinder 51, and the drain valve 52 is connected to the drain outlet. The oil drain outlet is located on the side of the oil collection cylinder 51, and the oil drain valve 53 is connected to the oil drain outlet for easy on / off control.

[0036] At this time, the support hole 24 is opposite to the washing mechanism. There are multiple washing mechanisms, which are spaced around the axis of the oil collecting cylinder 51 on the inner wall of the oil collecting cylinder 51 to ensure that the deceleration top 70 is thoroughly coarsely washed. The bottom of the oil collecting cylinder 51 is conical to facilitate the immediate discharge of sedimented impurities.

[0037] The washing mechanism includes a vertical brush 54, a horizontal brush 55, and a connecting block 56. A support ring plate 57 is provided inside the oil collecting cylinder 51. The support ring plate 57 is coaxially arranged with the oil collecting cylinder 51. The vertical brush 54 and the horizontal brush 55 are both connected between the support ring plate 57 and the inner wall of the oil collecting cylinder 51. The vertical brush 54 and the horizontal brush 55 are arranged opposite to each other. The vertical cross section of the connecting block 56 is triangular. The horizontal brush 55 is connected to the inclined surface of the connecting block 56. The bottom surface of the connecting block 56 is set horizontally, so that the horizontal brush 55 is inclined in the horizontal direction.

[0038] Specifically, taking an example with eight brushing mechanisms, four vertical brushes 54 are arranged circumferentially around the axis of the oil collecting cylinder 51 at equal intervals on the inner wall of the oil collecting cylinder 51, and the corresponding four horizontal brushes 55 are connected to the outer side of the support ring plate 57 through connecting blocks 56; the remaining four vertical brushes 54 are arranged circumferentially around the axis of the oil collecting cylinder 51 at equal intervals on the outer side of the support ring plate 57, and the corresponding four horizontal brushes 55 are connected to the inner wall of the oil collecting cylinder 51 through connecting blocks 56. At this time, the vertical brushes 54 on the support ring plate 57 are located between two adjacent horizontal brushes 55, and the bottom of the vertical brushes 54 on the support ring plate 57 is connected to the bottom of the inner wall of the oil collecting cylinder 51; the horizontal brushes 55 on the oil collecting cylinder 51 are located between two adjacent vertical brushes 54; optionally, all horizontal brushes 55 have the same inclination direction and the bottom of the connecting blocks 56 are at the same height.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications made to the technical solutions based on the technical concept proposed by this utility model shall fall within the scope of protection of the claims of this utility model.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A deceleration top washing machine, characterized in that, It includes a support frame (10), a deceleration top support unit (20), a lifting unit (30), and a coarse washing oil collection unit (50). The lifting unit (30) and the coarse washing oil collection unit (50) are both connected to the support frame (10). The deceleration top support unit (20) is connected to the support frame (10) via the lifting unit (30). The lifting unit (30) drives the deceleration top support unit (20) to move up and down in the coarse washing oil collection unit (50). The coarse washing oil collection unit (50) is located below the deceleration top support unit (20). The bottom of the coarse washing oil collection unit (50) is provided with a drain port, and the side of the coarse washing oil collection unit (50) is provided with an oil drain port.

2. The deceleration top washing machine according to claim 1, characterized in that, The deceleration top support unit (20) includes a support top plate (21), support rods (22) and a support bottom plate (23). There are multiple support rods (22), which are circumferentially spaced around the axis of the support top plate (21). The support rods (22) are connected between the support top plate (21) and the support bottom plate (23). The support bottom plate (23) has multiple support holes (24), which are spaced along the circumferential direction of the support bottom plate (23). The output end of the lifting unit (30) is connected to the support top plate (21).

3. The deceleration top washing machine according to claim 2, characterized in that, The lifting unit (30) includes a lifting drive plate (31), a lifting guide rail (32), a lifting drive (33), a lifting screw (34), a lifting slider (35), and a lifting connecting plate (36). The fixed end of the lifting drive (33) is connected to the support frame (10), and the output end of the lifting drive (33) is connected to the bottom of the lifting screw (34). The lifting screw (34) is vertically set and rotatably connected to the support frame (10). There are two lifting guide rails (32). The two lifting guide rails (32) are set on opposite sides of the lifting screw (34). The lifting drive plate (31) is connected between the two lifting guide rails (32). The end of the lifting drive plate (31) is slidably connected to the corresponding lifting guide rail (32) through the lifting slider (35). The top of the lifting screw (34) passes through the lifting drive plate (31) and is threadedly connected to the lifting drive plate (31). The end of the lifting connecting plate (36) is connected between the lifting slider (35) and the lifting drive plate (31). The head end of the lifting connecting plate (36) is connected to the support top plate (21).

4. The deceleration top washing machine according to claim 3, characterized in that, The lifting unit (30) also includes a protective cover (37), which is located on one side of the deceleration top support unit (20). The protective cover (37) has a movable groove, and the two lifting guide rails (32) are located inside the protective cover (37). The first end of the lifting connecting plate (36) extends through the movable groove to the outside of the protective cover (37), and the top of the lifting screw (34) is rotatably connected to the top of the protective cover (37).

5. The deceleration top washing machine according to claim 4, characterized in that, The protective cover (37) is provided with limit switches (38), and there are two limit switches (38), which are arranged vertically at intervals.

6. The deceleration top washing machine according to claim 2, characterized in that, The deceleration top washing machine also includes a rotating unit (40), the fixed end of which is connected to the supporting top plate (21), and the output end of which is connected to the supporting bottom plate (23).

7. The deceleration top washing machine according to claim 6, characterized in that, The rotating unit (40) includes a rotating drive (41) and a rotating connecting plate (42). The fixed end of the rotation drive (41) is connected to the support top plate (21), and the output end of the rotation drive (41) extends through the support top plate (21) to the bottom of the support top plate (21) and is rotatably connected to the support top plate (21). The top of the support rod (22) is connected to the output end of the rotation drive (41) through the rotation connecting plate (42).

8. The deceleration top washing machine according to claim 2 or 6, characterized in that, The coarse washing oil collection unit (50) includes an oil collection cylinder (51) and a washing mechanism. The oil collection cylinder (51) is connected to the support frame (10). The oil collection cylinder (51) is equipped with a drain valve (52) and an oil drain valve (53). The drain outlet is located at the bottom of the oil collection cylinder (51), and the drain valve (52) is connected to the drain outlet. The oil drain outlet is located on the side of the oil collection cylinder (51), and the oil drain valve (53) is connected to the oil drain outlet. The number of the washing mechanisms is multiple, and the multiple washing mechanisms are arranged at intervals around the axis of the oil collecting cylinder (51) on the inner wall of the oil collecting cylinder (51). The support hole (24) is opposite to the washing mechanism, and the bottom of the oil collecting cylinder (51) is conical.

9. The deceleration top washing machine according to claim 8, characterized in that, The washing mechanism includes a vertical brush (54), a horizontal brush (55), and a connecting block (56). A support ring plate (57) is provided inside the oil collecting cylinder (51). The support ring plate (57) is coaxially arranged with the oil collecting cylinder (51). The vertical brush (54) and the horizontal brush (55) are both connected between the support ring plate (57) and the inner wall of the oil collecting cylinder (51). The vertical brush (54) and the horizontal brush (55) are arranged opposite to each other. The vertical cross section of the connecting block (56) is triangular. The horizontal brush (55) is connected to the inclined surface of the connecting block (56). The bottom surface of the connecting block (56) is horizontal.

10. The deceleration top washing machine according to claim 1, characterized in that, The deceleration top washing machine also includes a sludge collection box (60), which is located below the drain outlet. Rollers (61) are provided at the bottom of the sludge collection box (60) and the bottom of the support frame (10).

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