A car washer, its top brush lifting device and guiding mechanism

Abstract

A car washing machine, its top brush lifting device and guiding mechanism. The car washing machine includes a top brush lifting device, and the top brush lifting device includes: a lifting guide rail, a top brush lifting guiding mechanism and a lifting driving mechanism; the lifting driving mechanism is installed on the cross beam of the car washing machine and is connected to the top brush lifting guiding mechanism, and the top brush lifting guiding mechanism is installed on the lifting guide rail and includes a main and a passive end guiding mechanism. The main and passive end guiding mechanisms respectively include a shaft plate, a guiding wheel, a guiding shaft, a guiding wheel spacer sleeve and a guiding wheel bushing. One end of the guiding shaft is installed on the shaft plate, the guiding wheel spacer sleeve is sleeved on the guiding shaft, the guiding wheel is arranged at the other end of the guiding shaft and is installed on the guiding wheel spacer sleeve through the guiding wheel bushing. An interference fit is provided between the guiding wheel and the guiding wheel bushing, and a clearance fit is provided between the guiding wheel bushing and the guiding wheel spacer sleeve. The invention improves the structural reliability, reduces the failure rate during use and improves the use efficiency.

Description

Technical Field

[0001] The invention relates to an automatic car washing device, in particular to a car washing machine and a top brush lifting device and a guiding mechanism thereof. Background Art

[0002] In the prior art, the top brush lifting device of the car washing machine often gets stuck or fails to lift properly due to its guiding stability. For example, the Chinese utility model patent with application number 201921062890.3 discloses a top brush lifting device, in which the guiding mechanism has a complex structure and adopts multi-dimensional guidance. The front and rear are guided by two large upper and lower guide wheels, and the left and right are guided by small guide wheels. In actual use, due to the unevenness of the installation site and the errors caused by assembly, the left and right guide wheels may cause the lifting mechanism to get stuck in the guide rails. In addition, the shaft made of 45# steel is directly matched with the guide wheel made of nylon. Due to the wear resistance of nylon, the matching hole is easy to become larger, resulting in greater shaking, causing structural instability and unnecessary noise. It not only affects the assembly efficiency and increases the production cost, but also easily fails during use. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a car washing machine and a top brush lifting device and a guide mechanism thereof in view of the above-mentioned defects of the prior art.

[0004] In order to achieve the above object, the present invention provides a top brush lifting guide mechanism for a car washing machine, which includes:

[0005] An active end guide mechanism comprises an active end shaft plate, an active guide wheel, an active guide shaft, an active guide wheel spacer and an active guide wheel sleeve, wherein one end of the active guide shaft is mounted on the active end shaft plate, the active guide wheel spacer is sleeved on the active guide shaft, the active guide wheel is arranged at the other end of the active guide shaft and is mounted on the active guide wheel spacer through the active guide wheel sleeve, the active guide wheel and the active guide wheel sleeve are in interference fit, and the active guide wheel sleeve and the active guide wheel spacer are in clearance fit; and

[0006] The passive end guide mechanism comprises a passive end shaft plate, a passive guide wheel, a passive guide shaft, a passive guide wheel spacer and a passive guide wheel sleeve, one end of the passive guide shaft is mounted on the passive end shaft plate, the passive guide wheel spacer is sleeved on the passive guide shaft, the passive guide wheel is arranged at the other end of the passive guide shaft and is mounted on the passive guide wheel spacer through the passive guide wheel sleeve, the passive guide wheel and the passive guide wheel sleeve are in interference fit, and the passive guide wheel sleeve and the passive guide wheel spacer are in clearance fit.

[0007] The above-mentioned top brush lifting and guiding mechanism, wherein at least one sealing ring is arranged around the outer circumferential surfaces of the active guiding wheel and the passive guiding wheel.

[0008] The above-mentioned top brush lifting and guiding mechanism, wherein the interference amount of the interference fit is 0.007 - 0.041; the fit clearance of the clearance fit is 0 - 0.034.

[0009] In order to better achieve the above object, the present invention also provides a top brush lifting device for a car washer, which includes:

[0010] Lifting guide rails, including a left lifting guide rail and a right lifting guide rail arranged symmetrically;

[0011] Top brush lifting and guiding mechanism, the active end guiding mechanism and the passive end guiding mechanism of the top brush lifting and guiding mechanism are respectively arranged on the right lifting guide rail and the left lifting guide rail; and

[0012] Lifting drive mechanism, connected to the top brush lifting and guiding mechanism and driving the top brush lifting and guiding mechanism to move up and down along the lifting guide rails.

[0013] The above-mentioned top brush lifting device, wherein webbing shafts are respectively arranged on the active end shaft plate and the passive end shaft plate of the top brush lifting and guiding mechanism, and the webbing shafts are respectively connected to the lifting drive mechanism through a left traction belt and a right traction belt.

[0014] The above-mentioned top brush lifting device, wherein a top brush rotating reduction gear is installed on the active end shaft plate of the top brush lifting and guiding mechanism, and the top brush rotating reduction gear is connected to a top brush rotating drive shaft; a top brush rotating driven shaft is installed on the passive end shaft plate of the top brush lifting and guiding mechanism through a passive end shaft seat.

[0015] The above-mentioned top brush lifting device, wherein a passive end shaft sleeve is further arranged between the top brush rotating driven shaft and the passive end shaft seat, and a clearance fit exists between the top brush rotating driven shaft and the passive end shaft sleeve, and the fit clearance of the clearance fit is 0 - 0.037; an interference fit exists between the passive end shaft sleeve and the passive end shaft seat, and the interference amount of the interference fit is 0.009 - 0.050.

[0016] The above-mentioned top brush lifting device, wherein a passive shaft seat baffle is further arranged between the passive end shaft seat and the passive end shaft plate.

[0017] The above-mentioned top brush lifting device, wherein the sealing rings on the outer circumferential surfaces of the active guiding wheel and the passive guiding wheel of the top brush lifting and guiding mechanism make there be a gap between the active guiding wheel and the passive guiding wheel and the corresponding right lifting guide rail and left lifting guide rail respectively, and the gap is 1.5 - 2.5 mm.

[0018] To better achieve the above object, the present invention further provides a car washing machine, which includes the above-mentioned top brush lifting device.

[0019] The technical effects of the present invention are as follows:

[0020] Compared with the prior art, the present invention improves the lifting performance by providing a guide wheel with a guide wheel bushing, simplifies the fixing structures of the active end, the passive end and the left and right traction belts, has a simple guiding structure, is easy to assemble, saves materials, reduces the processing cost, effectively reduces the cost, further improves the structural reliability, reduces the failure rate during use, and improves the use efficiency. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of a car washing machine according to an embodiment of the present invention;

[0022] Figure 2 is Figure 1 the left view of

[0023] Figure 3 is a schematic structural diagram of a top brush lifting device according to an embodiment of the present invention;

[0024] Figure 4 is a schematic structural diagram of an active end of a guiding mechanism according to an embodiment of the present invention;

[0025] Figure 5 is Figure 4 the A-A sectional view of

[0026] Figure 6 is a schematic structural diagram of a passive end of a guiding mechanism according to an embodiment of the present invention;

[0027] Figure 7 is Figure 6 the B-B sectional view of

[0028] Among them, the reference numerals

[0029] 1 frame

[0030] 2 top brush

[0031] 3 top brush lifting device

[0032] 31 lifting guide rail

[0033] 32 lifting drive mechanism

[0034] 33 active end guiding mechanism

[0035] 331 active end shaft plate

[0036] 332 active guide wheel

[0037] 333 active guide shaft

[0038] 334 Active guide wheel spacer

[0039] 335 Active guide wheel bushing

[0040] 336 Sealing ring

[0041] 34 Passive end guiding mechanism

[0042] 341 Passive end shaft plate

[0043] 342 Passive guide wheel

[0044] 343 Passive guide shaft

[0045] 344 Passive guide wheel spacer

[0046] 345 Passive guide wheel bushing

[0047] 346 Sealing ring

[0048] 347 Passive end shaft seat

[0049] 348 Passive end bushing

[0050] 349 Passive shaft seat baffle

[0051] 35 Top brush rotating reduction gear

[0052] 36 Top brush rotating drive shaft

[0053] 37 Webbing shaft

[0054] 38 Left traction belt

[0055] 39 Right traction belt

[0056] 30 Top brush rotating driven shaft

[0057] 4 Left side brush

[0058] 5 Right side brush

[0059] 6 Air drying device

[0060] 7 Track Detailed implementation manners

[0061] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and efficacy of the present invention, but it is not intended to limit the scope of protection of the appended claims of the present invention.

[0062] In the description and subsequent claims, certain terms are used to refer to specific components or parts. Those of ordinary skill in the art should understand that technology users or manufacturers may use different nouns or terms to refer to the same component or part. The description and subsequent claims do not distinguish components or parts by the difference in names, but by the difference in their functions as the criterion for distinction. The terms "comprising" and "including" mentioned throughout the description and subsequent claim items are open-ended terms and should be interpreted as "including but not limited to". In addition, the term "connected" herein includes any direct and indirect electrical connection means. Indirect electrical connection means include connection through other devices.

[0063] It should be noted that in the description of the present invention, the orientation or positional relationship or parameters indicated by terms such as "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and "about", or "approximately", "substantially", "around" are all based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description content, and does not indicate or imply that the device or element referred to must have a specific orientation, a specific size, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0064] See Figure 1 and Figure 2 , Figure 1 is a schematic structural diagram of a car washing machine according to an embodiment of the present invention. Figure 2 is Figure 1 The left view of. The car washing machine of the present invention includes a frame 1, a top brush 2, a track 7, and a top brush lifting device 3, a left side brush 4, a right side brush 5, and a drying device 6 installed on the frame 1. The frame 1 is installed on the track 7. The left side brush 4 and the right side brush 5 are respectively arranged on both sides of the frame 1 and behind the top brush lifting device 3. The drying device 6 is arranged above the frame 1 and at the rear side of the frame. The top brush 2 is installed on the top brush lifting device 3 and, driven by the top brush lifting device 3, moves up and down along the lifting guide rail 31 installed on the column of the frame 1 to realize the cleaning of the top of the vehicle. Since the composition, structure, mutual positional relationship, connection relationship, and functions of other parts of the car washing machine are all relatively mature prior arts, they will not be elaborated here. Only the top brush lifting device 3 and its guiding mechanism of the present invention will be described in detail below.

[0065] See Figure 3 , Figure 3It is a schematic structural diagram of the top brush lifting device 3 according to an embodiment of the present invention. The top brush lifting device 3 of the present invention includes: a lifting guide rail 31, which includes a left lifting guide rail and a right lifting guide rail arranged symmetrically. The left lifting guide rail and the right lifting guide rail are both preferably U-shaped steel structures with flanges on one side or both sides, and are respectively installed on the left and right columns of the frame 1 of the car wash; a lifting drive mechanism 32, which is installed on the cross beam of the frame 1 of the car wash and is connected to the top brush lifting guide mechanism; a top brush lifting guide mechanism, the top brush lifting guide mechanism includes an active end guide mechanism 33 and a passive end guide mechanism 34, which are respectively arranged corresponding to the right lifting guide rail 31 and the left lifting guide rail 31. Webbing shafts 37 are respectively arranged on the active end shaft plate 331 and the passive end shaft plate 341 of the top brush lifting guide mechanism, and are respectively fixed on the active end shaft plate 331 and the passive end shaft plate 341. The webbing shafts 37 are respectively connected to the lifting drive mechanism 32 through a left traction belt 38 and a right traction belt 39. The lifting drive mechanism 32 includes a speed reducer, a motor, a webbing shaft and a webbing wheel. The webbing shaft can be connected to the speed reducer through a coupling, the speed reducer is connected to the motor, and the webbing wheels are respectively installed at both ends of the webbing shaft. One end of the left traction belt 38 is fixedly connected to the webbing shaft 37 on the passive end shaft plate 341, and the other end of the left traction belt 38 is connected to the left webbing wheel. One end of the right traction belt 39 is fixedly connected to the webbing shaft 37 on the active end shaft plate 331, and the other end of the right traction belt 39 is connected to the right webbing wheel. Both ends of the top brush 2 are respectively connected to the active end guide mechanism 33 and the passive end guide mechanism 34. The active end guide mechanism 33 is pulled by the right traction belt 39 to move up and down in the slideway of the right lifting guide rail 31. At the same time, the passive end guide mechanism 34 is synchronously pulled by the left traction belt 38 to move up and down in the slideway of the left lifting guide rail 31.

[0066] See Figure 4 and Figure 5 , Figure 4 is a schematic structural diagram of the active end guide mechanism 33 according to an embodiment of the present invention, Figure 5 is Figure 4A-A sectional view. The top brush lifting and guiding mechanism of the present invention includes: an active end guiding mechanism 33, which includes an active end shaft plate 331, an active guiding wheel 332, an active guiding shaft 333, an active guiding wheel spacer 334, and an active guiding wheel bushing 335. One end of the active guiding shaft 333 is installed on the active end shaft plate 331. The active guiding wheel spacer 334 is sleeved on the active guiding shaft 333. The active guiding wheel 332 is arranged at the other end of the active guiding shaft 333 and is installed on the active guiding wheel spacer 334 through the active guiding wheel bushing 335. There is an interference fit between the active guiding wheel 332 and the active guiding wheel bushing 335, and a clearance fit between the active guiding wheel bushing 335 and the active guiding wheel spacer 334; and a passive end guiding mechanism 34, which includes a passive end shaft plate 341, a passive guiding wheel 342, a passive guiding shaft 343, a passive guiding wheel spacer 344, and a passive guiding wheel bushing 345. One end of the passive guiding shaft 343 is installed on the passive end shaft plate 341. The passive guiding wheel spacer 344 is sleeved on the passive guiding shaft 343. The passive guiding wheel 342 is arranged at the other end of the passive guiding shaft 343 and is installed on the passive guiding wheel spacer 344 through the passive guiding wheel bushing 345. There is an interference fit between the passive guiding wheel 342 and the passive guiding wheel bushing 345, and a clearance fit between the passive guiding wheel bushing 345 and the passive guiding wheel spacer 344. In this embodiment, the interference amount of the interference fit is 0.007 - 0.041, preferably 0.024; the fit clearance of the clearance fit is 0 - 0.034, preferably 0.017. Among them, at least one sealing ring 336 and a sealing ring 346 are respectively arranged on the outer circumferential surfaces of the active guiding wheel 332 and the passive guiding wheel 342. The sealing ring 336 and the sealing ring 346 are preferably one or more O-rings, preferably made of nitrile rubber materials, and have the properties of heat resistance, cold resistance, oil resistance, wear resistance, and high elasticity. The setting of the O-ring makes there be a certain gap between the guiding wheel and the lifting guide rail 31, which will not cause fork movement on both sides, but single-sided rolling, and the contact area between the O-ring and the slideway of the lifting guide rail 31 is smaller than the contact area between the guiding wheel and the slideway of the lifting guide rail 31 directly, greatly reducing friction and movement noise. That is, the O-ring makes there be a gap between the active guiding wheel 332 and the passive guiding wheel 342 and the corresponding right lifting guide rail 31 and left lifting guide rail 31 respectively. The gap is 1.5 - 2.5 mm, preferably 2 mm. The installation positions of the O-ring on the active guiding wheel 332 and the passive guiding wheel 342 are preferably symmetrically distributed on the outer circumferential surface of the guiding wheel along the axial direction of the guiding wheel. The groove depth of the O-ring installation groove is preferably about 0.5 mm, and the distance between the installation grooves is between 20 - 30 mm.

[0067] On the driving end shaft plate 331 of this embodiment, a top brush rotary speed reducer 35 is fixedly installed, and a top brush rotary drive shaft 36 is fixedly connected to the top brush rotary speed reducer 35; on the driven end shaft plate 341, a top brush rotary driven shaft 30 is installed through a driven end shaft seat 347. Among them, the driven end shaft seat 347 is fixed on the driven end shaft plate 341, and the top brush rotary driven shaft 30 is installed and supported in the driven end shaft seat 347. Both ends of the top brush 2 are respectively connected to the top brush rotary drive shaft 36 and the top brush rotary driven shaft 30, and the top brush rotary speed reducer 35 drives the top brush rotary drive shaft 36 to drive the top brush 2 to rotate.

[0068] See Figure 6 and Figure 7 , Figure 6 is a schematic structural diagram of the driven end guiding mechanism 34 of an embodiment of the present invention. Figure 7 is Figure 6 the B-B cross-sectional view of. A driven end shaft sleeve 348 is further provided between the top brush rotary driven shaft 30 and the driven end shaft seat 347. A clearance fit is provided between the top brush rotary driven shaft 30 and the driven end shaft sleeve 348, and the clearance of the clearance fit is between 0 and 0.037, preferably 0.018; an interference fit is provided between the driven end shaft sleeve 348 and the driven end shaft seat 347, and the interference amount of the interference fit is 0.009 - 0.050, preferably 0.029. A driven shaft seat baffle 349 is further fixedly provided between the driven end shaft seat 347 and the driven end shaft plate 341. The driving end guiding mechanism 33 and the driven end guiding mechanism 34 are symmetrically arranged. The major axis ratios of the driving guide wheel 332 and the driven guide wheel 342 are both preferably about 0.5. In this embodiment, the driving guide wheels 332 and the driven guide wheels 342 are respectively used in pairs. The distances between the two driving guide wheels 332 and the two driven guide wheels 342 are both preferably about 200 mm. The ratio of the total length of the driving guide wheel spacer 334 to the length of its mating section with the driving guide wheel bushing 335 is preferably between 3:1 and 2:1, and the major axis ratio of the driving guide wheel spacer 334 is preferably about 3:2; the ratio of the total length of the driven guide wheel spacer 344 to the length of its mating section with the driven guide wheel bushing 345 is preferably between 3:1 and 2:1, and the major axis ratio of the driven guide wheel spacer 344 is preferably about 3:2.

[0069] In the present invention, a guide wheel bushing is added between the guide wheel and the guide wheel spacer sleeve on the active end guide mechanism 33 and the passive end guide mechanism 34. An interference fit (tight fit) is adopted between the guide wheel and the guide wheel bushing, while a clearance fit (loose fit) is adopted between the guide wheel bushing and the guide wheel spacer sleeve. Since the guide wheel bushing is preferably made of wear-resistant and corrosion-resistant H1 alloy material, or copper alloy materials such as bronze and tin bronze can also be selected, it has a long service life and good stability. Similarly, a passive end bushing 348 is also provided between the top brush rotating driven shaft 30 and the passive end shaft seat 347. And the fixing structures of the active end, the passive end and the left and right traction belts 38, 39 are simplified. By setting the guide wheel with the guide wheel bushing, the lifting performance is improved. At the same time, not only materials are saved, but also processing costs are reduced, it is easy to assemble, the failure rate is reduced, and the noise is reduced.

[0070] Certainly, the present invention can also have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention. However, these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present invention.

Claims

1. The top brush lifting device of a car washing machine, characterized in that, it includes: Lifting guide rails, including symmetrically arranged left and right lifting guide rails; The top brush lifting guiding mechanism includes: The active end guiding mechanism includes an active end shaft plate, an active guiding wheel, an active guiding shaft, an active guiding wheel spacer sleeve and an active guiding wheel bushing. One end of the active guiding shaft is installed on the active end shaft plate. The active guiding wheel spacer sleeve is sleeved on the active guiding shaft. The active guiding wheel is arranged at the other end of the active guiding shaft and is installed on the active guiding wheel spacer sleeve through the active guiding wheel bushing. There is an interference fit between the active guiding wheel and the active guiding wheel bushing, and a clearance fit between the active guiding wheel bushing and the active guiding wheel spacer sleeve; and the passive end guiding mechanism includes a passive end shaft plate, a passive guiding wheel, a passive guiding shaft, a passive guiding wheel spacer sleeve and a passive guiding wheel bushing. One end of the passive guiding shaft is installed on the passive end shaft plate. The passive guiding wheel spacer sleeve is sleeved on the passive guiding shaft. The passive guiding wheel is arranged at the other end of the passive guiding shaft and is installed on the passive guiding wheel spacer sleeve through the passive guiding wheel bushing. There is an interference fit between the passive guiding wheel and the passive guiding wheel bushing, and a clearance fit between the passive guiding wheel bushing and the passive guiding wheel spacer sleeve; At least one sealing ring is arranged around the outer circumferential surfaces of the active guiding wheel and the passive guiding wheel. The sealing ring is an O-ring. The O-ring makes there be a gap between the active guiding wheel and the passive guiding wheel and the corresponding lifting guide rails respectively to realize unilateral rolling and avoid cross movement on both sides; and the contact area between the O-ring and the slideway of the lifting guide rail is smaller than the contact areas between the active guiding wheel and the passive guiding wheel and the slideways of the corresponding lifting guide rails respectively; The active end guiding mechanism and the passive end guiding mechanism are respectively arranged corresponding to the right lifting guide rail and the left lifting guide rail; and The lifting driving mechanism is connected to the top brush lifting guiding mechanism and drives the top brush lifting guiding mechanism to move up and down along the lifting guide rails; A passive end bushing is also arranged between the top brush rotating driven shaft and the passive end seat. There is a clearance fit between the top brush rotating driven shaft and the passive end bushing, and the fit clearance of the clearance fit is 0 - 0.037; There is an interference fit between the passive end bushing and the passive end seat, and the interference amount of the interference fit is 0.009 - 0.050; The ratio of the total length of the active guiding wheel spacer sleeve to the length of the mating section of the active guiding wheel bushing is 3:1 - 2:1, and the ratio of the major axis to the minor axis of the active guiding wheel spacer sleeve is 3:2; The ratio of the total length of the passive guiding wheel spacer sleeve to the length of the mating section of the passive guiding wheel bushing is 3:1 - 2:1, and the ratio of the major axis to the minor axis of the passive guiding wheel spacer sleeve is 3:

2.

2. The top brush lifting device according to claim 1, characterized in that, The interference amount of the interference fit between the passive guide wheel and the passive guide wheel bushing is 0.007 - 0.041; the fit clearance of the clearance fit between the passive guide wheel bushing and the passive guide wheel spacer is 0 - 0.

034.

3. The top brush lifting device according to claim 1, characterized in that, Weft shafts are respectively arranged on the active end shaft plate and the passive end shaft plate of the top brush lifting guide mechanism, and the weft shafts are respectively connected to the lifting drive mechanism through a left traction belt and a right traction belt.

4. The top brush lifting device according to claim 1, 2 or 3, characterized in that, A top brush rotating reduction gear is installed on the active end shaft plate of the top brush lifting guide mechanism, and the top brush rotating reduction gear is connected to the top brush rotating drive shaft; a top brush rotating driven shaft is installed on the passive end shaft plate of the top brush lifting guide mechanism through a passive end shaft seat.

5. The top brush lifting device according to claim 4, characterized in that, A passive shaft seat baffle is further arranged between the passive end shaft seat and the passive end shaft plate.

6. The top brush lifting device according to claim 3 or 4, characterized in that, Sealing rings on the outer circumferential surfaces of the active guide wheel and the passive guide wheel of the top brush lifting guide mechanism make there be a gap between the active guide wheel and the passive guide wheel and the corresponding right lifting guide rail and left lifting guide rail respectively, and the gap is 1.5 - 2.5 mm.

7. A car washing machine, characterized in that, It includes the top brush lifting device according to any one of claims 1 - 6.

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