CN218992150U - Cleaning and sweeping vehicle suction nozzle roller sealing device - Google Patents
Cleaning and sweeping vehicle suction nozzle roller sealing device Download PDFInfo
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- CN218992150U CN218992150U CN202223009006.4U CN202223009006U CN218992150U CN 218992150 U CN218992150 U CN 218992150U CN 202223009006 U CN202223009006 U CN 202223009006U CN 218992150 U CN218992150 U CN 218992150U
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Abstract
The utility model discloses a cleaning and sweeping vehicle suction nozzle roller sealing device, which relates to the field of cleaning and sweeping vehicle suction nozzle roller sealing. According to the utility model, the non-contact labyrinth seal is formed between the annular groove arranged on the inner ring of the sealing cover and the outer ring of the hub, so that the rotary heating is avoided. Through setting up V type slot outflow, prevented muddy water and got into sealed lid inner chamber, effectively prevented external grit, muddy water entering bearing, avoided bearing abnormal wear.
Description
Technical Field
The utility model relates to the field of cleaning and sweeping vehicle suction nozzle roller sealing, in particular to a cleaning and sweeping vehicle suction nozzle roller sealing device.
Background
The washing and sweeping vehicle is a vehicle for carrying washing and sweeping, flushing and sweeping operations on roads such as urban areas or national roads, expressways and the like, roller devices are arranged on two sides of a suction nozzle of the washing and sweeping vehicle, a semi-closed double-bearing is adopted for suction nozzle rollers of the washing and sweeping vehicle, bearings are oppositely arranged in central holes of roller hubs and supported on the roller shafts, bearing sealing rings face to the outer side, a certain dustproof sealing effect is achieved, two sides of an inner ring of each bearing are contacted with a flat washer or a step shaft with a boss, and locking nuts are adopted for fixing the inner ring of each bearing on a roller support.
At present, a suction nozzle roller of a washing and sweeping vehicle is directly contacted with the external environment by virtue of a bearing sealing ring, and when the washing and sweeping vehicle works, high-pressure flushing water flow can splash road sand and mud onto the suction nozzle roller and can enter between the bearing sealing ring and a gasket. After the sand stone and the muddy water are contacted with the sealing ring of the bearing, the sand stone can rub with the sealing ring under the action of centrifugal force generated by the rotation of the roller, the sealing ring can be damaged for a long time, the muddy water can enter the bearing, so that the bearing damage and the roller abrasion are accelerated, the normal running operation of the suction nozzle is influenced,
when the existing washing and sweeping vehicle works, high-pressure flushing water flows can splash road sand and mud water onto the suction nozzle rollers, the sand and the sealing rings can generate friction, the sealing rings can be damaged for a long time, and the normal running operation of the suction nozzles is affected.
Disclosure of Invention
The utility model mainly aims to provide a cleaning and sweeping vehicle suction nozzle roller sealing device, which can effectively solve the problems that high-pressure flushing water flow can splash road sand and mud water onto suction nozzle rollers, sand and sealing rings can rub, the sealing rings can be damaged for a long time, and normal running operation of suction nozzles is affected when the cleaning and sweeping vehicle is operated in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a cleaning and sweeping vehicle suction nozzle roller sealing device comprises a roller bracket, a tire, a wheel core, a bearing, a spacer bush, a roller shaft, a lock nut, an oil cup and a sealing cover;
the wheel core consists of a rim, a hub and a spoke and is integrated; the outer ring of the rim and the inner ring of the tire are bonded into a whole, the outer ring of the hub is a cylindrical surface, the inner ring is a cylindrical inner hole, a step is arranged in the middle of the inner hole, bearings are respectively arranged in the cylindrical inner holes on two sides of the step, and a dust cover is arranged on the outer side of the bearing; the inner sides of the two bearing outer rings are contacted with the side surfaces of the steps, and the two sides of the hub are flush with the outer sides of the two bearing outer rings; a spacer bush is arranged between the two bearing inner rings, the spacer bush is contacted with the two bearing inner rings, the spacer bush inner rings and the bearing inner rings have the same diameter, an annular arc groove is arranged in the middle of the spacer bush inner rings, and a through hole a is arranged in the center of the groove;
the two sides of the hub are provided with sealing covers, two annular arc grooves are formed in an inner ring of each sealing cover, a 15-degree chamfer is formed in the outer side of the inner ring of each sealing cover, a truncated cone which is coaxial with the outer ring of each sealing cover in a certain height is arranged on the inner side of each sealing cover, the top surface of each truncated cone is in contact with the inner ring of each bearing, meanwhile, the two annular grooves of the inner ring of each sealing cover are nested on the outer ring of the hub, and the circumferential gap between the inner ring of each sealing cover and the outer ring of the hub is 0.2-0.3 mm; a V-shaped groove with an inclined angle is arranged below the annular groove of the sealing cover, a cylindrical boss coaxial with the outer ring of the sealing cover is arranged on the outer side of the sealing cover, and the top surface of the cylindrical boss is contacted with the inner side of the roller bracket.
Preferably, the roller shaft supports the roller in a cylindrical hole below the roller bracket through a bearing, a spacer bush and a sealing cover; the roller bearing is characterized in that a flange boss is arranged on one section of the roller shaft, the flange is in contact with the outer side face of the roller support, an external thread is arranged at the other end of the roller shaft, a locking nut is arranged on the external thread, and the inner ring of the roller bearing is locked and fixed on the roller support through the locking nut.
Preferably, a rectangular threaded blind hole is formed in one side of the flange of the roller shaft, a hole b is formed in the radial direction of the roller shaft corresponding to the annular groove of the spacer bush, and the hole b is crossed and communicated with a bottom hole c of the threaded blind hole of the roller shaft.
Preferably, the rectangular threaded blind hole end is provided with an oil cup, and lubricating grease can be injected into the bearing cavity through the oil cup, the roller shaft threaded bottom hole c, the roller shaft hole b, the spacer annular groove and the spacer hole a.
Preferably, the width of the spoke is smaller than the width of the hub of the wheel core by more than 25mm, and the spoke is equal to the distance between two sides of the hub.
Preferably, the central hole of the sealing cover is equal in diameter with the bearing inner ring.
Compared with the prior art, the utility model has the following beneficial effects: according to the cleaning and sweeping vehicle suction nozzle roller combination sealing device, a non-contact labyrinth seal is formed between the annular groove arranged on the inner ring of the sealing cover and the outer ring of the hub, so that rotary heating is avoided. Because the gap between the inner ring of the sealing cover and the hub is only 0.2mm, the outside large-particle sand stone is prevented from entering the sealing cover; when outside muddy water enters the sealing cover, most muddy water flows out along the 15-degree chamfer angle of the inner ring of the sealing cover under the centrifugal force generated by the rotation of the hub. The muddy water is further separated after entering the annular groove and flows out from the V-shaped groove with the inclination of 15 degrees below the annular groove, so that the muddy water is prevented from entering the inner cavity of the sealing cover, the outside sand and the muddy water are effectively prevented from entering the bearing, the abnormal abrasion of the bearing is avoided, the service lives of the bearing and the roller are prolonged, and the reliability of the suction nozzle device is improved.
Drawings
FIG. 1 is a schematic sectional view of a cleaning and sweeping vehicle suction nozzle roller sealing device;
FIG. 2 is a schematic diagram of the front view structure of a cleaning and sweeping vehicle suction nozzle roller sealing device;
FIG. 3 is a cross-sectional structure view of a sealing cover of a cleaning and sweeping vehicle suction nozzle roller sealing device;
FIG. 4 is a front view of the sealing cover of the suction nozzle roller sealing device of the washing and sweeping vehicle;
fig. 5 is a schematic diagram of a sectional structure of a roller wheel core of a cleaning and sweeping vehicle suction nozzle roller sealing device.
In the figure: 1. a roller bracket; 2. a tire; 3. a wheel core; 4. a bearing; 5. a spacer bush; 6. a roller shaft; 7. a lock nut; 8. an oil cup; 9. sealing cover; 10. a rim; 11. a hub; 12. a spoke.
Description of the embodiments
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-5, the utility model discloses a cleaning and sweeping vehicle suction nozzle roller sealing device, which comprises a roller bracket 1, a tire 2, a wheel core 3, a bearing 4, a spacer bush 5, a roller shaft 6, a locking nut 7, an oil cup 8 and a sealing cover 9;
the wheel core 3 is composed of a rim 10, a hub 11 and spokes 12 and is formed into a whole; the outer ring of the rim 10 is bonded with the inner ring of the tire into a whole, the outer ring of the hub 11 is a cylindrical surface, the inner ring is a cylindrical inner hole, a step is arranged in the middle of the inner hole, the cylindrical inner holes on two sides of the step are respectively provided with a bearing 4, and the outer side of the bearing 4 is provided with a dust cover; the inner sides of the outer rings of the two bearings 4 are contacted with the side surfaces of the steps, and the two sides of the hub 11 are flush with the outer sides of the outer rings of the two bearings 4; a spacer bush 5 is arranged between the inner rings of the two bearings 4, the spacer bush 5 is in contact with the inner rings of the two bearings 4, the inner rings of the spacer bush 5 are equal in diameter with the inner rings of the bearings 4, an annular circular arc groove is formed in the middle of the inner ring of the spacer bush 5, and a through hole a is formed in the center of the groove;
the two sides of the hub 11 are provided with sealing covers 9, the inner ring of the sealing cover 9 is provided with two annular arc grooves, the outer side of the inner ring of the sealing cover 9 is provided with a 15-degree chamfer angle, the inner side of the sealing cover 9 is provided with a truncated cone which is coaxial with the outer ring of the sealing cover 9 by a certain height, the top surface of the truncated cone is contacted with the inner ring of the bearing, meanwhile, the two annular grooves of the inner ring of the sealing cover 9 are nested on the outer ring of the hub, and the circumferential gap between the inner ring of the sealing cover 9 and the outer ring of the hub 11 is 0.2-0.3 mm; a V-shaped groove with a 15-degree inclination is arranged below the annular groove of the sealing cover 9, a cylindrical boss coaxial with the outer ring of the sealing cover is arranged on the outer side of the sealing cover 9, and the top surface of the cylindrical boss is contacted with the inner side of the roller bracket.
The roller shaft 6 supports the roller in a cylindrical hole below the roller bracket 1 through the bearing 4, the spacer bush 5 and the sealing cover 9; one section of the roller shaft 6 is provided with a flange boss, the flange is contacted with the outer side surface of the roller support 1, the other end of the roller shaft 6 is provided with external threads, locking nuts 7 are arranged on the external threads, and the inner ring of the roller bearing is locked and fixed on the roller support 1 through the locking nuts 7.
Wherein, one side of the flange of the roller shaft 6 is provided with a rectangular threaded blind hole, the roller shaft 6 corresponding to the annular groove of the spacer bush is radially provided with a hole b, and the hole b is crossed and communicated with a bottom hole c of the threaded blind hole of the roller shaft 6.
The oil cup 8 is arranged at the end of the rectangular threaded blind hole, and lubricating grease can be injected into the bearing cavity through the oil cup 8, the threaded bottom hole c of the roller shaft 6, the hole b of the roller shaft 6, the annular groove of the spacer bush and the spacer bush hole a.
Wherein, the width of the spoke 12 is smaller than the width of the hub 11 of the wheel core 3 by more than 25mm, and the distance between the spoke and the two sides of the hub 11 is equal.
Wherein, the central hole of the sealing cover 9 is equal to the diameter of the inner ring of the bearing 4.
The working principle of the utility model is as follows: when the utility model is used, the non-contact labyrinth seal is formed between the annular groove arranged on the inner ring of the sealing cover and the outer ring of the hub, so that the rotary heating is avoided. Because the gap between the inner ring of the sealing cover and the hub is only 0.2mm, the outside large-particle sand stone is prevented from entering the sealing cover; when outside muddy water enters the sealing cover, most muddy water flows out along the 15-degree chamfer angle of the inner ring of the sealing cover under the centrifugal force generated by the rotation of the hub. The muddy water is further separated after entering the annular groove and flows out from the V-shaped groove with the inclination of 15 degrees below the annular groove, so that the muddy water is prevented from entering the inner cavity of the sealing cover, the outside sand and the muddy water are effectively prevented from entering the bearing, the abnormal abrasion of the bearing is avoided, and the contents which are not described in detail in the specification belong to the prior art known to the person skilled in the art.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. A washing and sweeping vehicle suction nozzle roller sealing device is characterized in that: the device comprises a roller bracket (1), a tire (2), a wheel core (3), a bearing (4), a spacer bush (5), a roller shaft (6), a lock nut (7), an oil cup (8) and a sealing cover (9);
the wheel core (3) consists of a rim (10), a hub (11) and spokes (12) and is formed into a whole; the outer ring of the rim (10) is bonded with the inner ring of the tire to form a whole, the outer ring of the hub (11) is a cylindrical surface, the inner ring is a cylindrical inner hole, a step is arranged in the middle of the inner hole, bearings (4) are respectively arranged in the cylindrical inner holes at two sides of the step, and a dust cover is arranged at the outer side of each bearing (4); the inner sides of the outer rings of the two bearings (4) are contacted with the side surfaces of the steps, and the two sides of the hub (11) are flush with the outer sides of the outer rings of the two bearings (4); a spacer bush (5) is arranged between the inner rings of the two bearings (4), the spacer bush (5) is in contact with the inner rings of the two bearings (4), the inner rings of the spacer bush (5) are equal in diameter with the inner rings of the bearings (4), an annular circular arc groove is formed in the middle of the inner ring of the spacer bush (5), and a through hole a is formed in the center of the groove;
the two sides of the hub (11) are provided with sealing covers (9), two annular arc grooves are formed in the inner ring of the sealing covers (9), a 15-degree chamfer is formed in the outer side of the inner ring of the sealing covers (9), a conical frustum which is coaxial with the outer ring of the sealing covers (9) is arranged on the inner side of the sealing covers (9), the top surface of the conical frustum contacts with the inner ring of the bearing, meanwhile, the two annular grooves of the inner ring of the sealing covers (9) are nested on the outer ring of the hub, and the circumferential gap between the inner ring of the sealing covers (9) and the outer ring of the hub (11) is 0.2-0.3 mm; a V-shaped groove with a 15-degree inclination is arranged below the annular groove of the sealing cover (9), a cylindrical boss coaxial with the outer ring of the sealing cover is arranged on the outer side of the sealing cover (9), and the top surface of the cylindrical boss is in contact with the inner side of the roller bracket.
2. The cleaning and sweeping vehicle nozzle roller sealing device according to claim 1, wherein: the roller shaft (6) supports the roller in a cylindrical hole below the roller bracket (1) through the bearing (4), the spacer bush (5) and the sealing cover (9); one section of the roller shaft (6) is provided with a flange boss, the flange is in contact with the outer side surface of the roller support (1), the other end of the roller shaft (6) is provided with external threads, locking nuts (7) are arranged on the external threads, and the inner ring of the roller bearing is locked and fixed on the roller support (1) through the locking nuts (7).
3. The cleaning and sweeping vehicle nozzle roller sealing device according to claim 2, wherein: a rectangular threaded blind hole is formed in one side of the flange of the roller shaft (6), a hole b is formed in the radial direction of the roller shaft (6) corresponding to the annular groove of the spacer bush, and the hole b is crossed and communicated with a bottom hole c of the threaded blind hole of the roller shaft (6).
4. A cleaning and sweeping vehicle nozzle roller seal assembly according to claim 3, wherein: the oil cup (8) is arranged at the end of the rectangular threaded blind hole, and lubricating grease can be injected into the bearing cavity through the oil cup (8), the threaded bottom hole c of the roller shaft (6), the hole b of the roller shaft (6), the annular groove of the spacer bush and the spacer bush hole a.
5. The cleaning and sweeping vehicle nozzle roller sealing device according to claim 4, wherein: the width of the spoke (12) is smaller than the width of the hub (11) of the wheel core (3) by more than 25mm, and the spoke is equal to the distance between the two sides of the hub (11).
6. The cleaning and sweeping vehicle nozzle roller sealing device according to claim 5, wherein: the central hole of the sealing cover (9) is equal in diameter with the inner ring of the bearing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223009006.4U CN218992150U (en) | 2022-11-11 | 2022-11-11 | Cleaning and sweeping vehicle suction nozzle roller sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223009006.4U CN218992150U (en) | 2022-11-11 | 2022-11-11 | Cleaning and sweeping vehicle suction nozzle roller sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218992150U true CN218992150U (en) | 2023-05-09 |
Family
ID=86221897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223009006.4U Active CN218992150U (en) | 2022-11-11 | 2022-11-11 | Cleaning and sweeping vehicle suction nozzle roller sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218992150U (en) |
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2022
- 2022-11-11 CN CN202223009006.4U patent/CN218992150U/en active Active
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