Roller screen riding wheel device

Abstract

The utility model discloses a roller screen riding wheel device which comprises a riding wheel assembly, a riding wheel shaft, two rolling bearings and two bearing seats. The riding wheel assembly comprises a riding wheel shaft seat and a riding wheel sleeve; the riding wheel shaft seat coaxially sleeves and fixes the riding wheel steel ring; the outer surface of the riding wheel steel ring is detachably sleeved with the riding wheel sleeve; annular clamping grooves are formed in the two ends of the outer wall of the riding wheel steel ring in a concave mode respectively, and inner turnups are arranged at the two ends of the riding wheel sleeve respectively and embedded and clamped in the annular clamping grooves. The riding wheel sleeve is made of polyurethane; the riding wheel shaft is fixed in the riding wheel shaft seat in a penetrating mode, the two ends, extending out of the riding wheel shaft seat, of the riding wheel shaft are connected into rolling bearings respectively, and the rolling bearings are arranged in bearing seats. Therefore, the riding wheel sleeve is matched with the riding wheel steel ring and the riding wheel shaft seat, when the riding wheel sleeve is damaged, the riding wheel sleeve can be directly replaced, the maintenance is convenient, and the cost is saved; and the surface of the riding wheel rim is covered with the riding wheel sleeve which is made of polyurethane and has the corresponding thickness, so that the service life can be prolonged, and the probability of degumming, cracking and deformation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of drum screens, in particular to a supporting wheel device for a drum screen. Background Art

[0002] The drum screen is a conventional sorting device. The drum screen is installed obliquely and is supported by four supporting wheels. The drum screen drives the supporting wheels to rotate through a driving motor, and the supporting wheels drive the drum to make a rotary motion along the axis of the drum body by friction. Materials enter the rotating drum body, and the materials smaller than the target sieve holes fall out of the sieve body, while the materials larger than the target sieve holes are output from the tail of the drum body along with the rotation of the drum body.

[0003] Since the drum screen and the supporting wheels are in a long-term friction rolling fit, and the load of the drum screen also depends on the support of the four supporting wheels, the existing supporting wheels generally use ordinary solid rubber wheels. However, the solid rubber wheels are not resistant to high temperatures, resulting in a reduced service life of the supporting wheels. Moreover, they are prone to degumming and cracking after long-term work, which makes the supporting wheels need to be frequently replaced and repaired, with high costs and affecting work efficiency.

[0004] The existing supporting wheels are generally directly installed on the frame and then support the four corners of the drum screen. The installation angles of the supporting wheels are not easy to adjust, resulting in an inaccurate fit between the supporting wheels and the drum screen and affecting the stable operation of the drum screen. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a supporting wheel device for a drum screen, which has the advantages of not being easy to degum and crack and being convenient for maintenance.

[0006] To achieve the above purpose, the solution of the utility model is:

[0007] A supporting wheel device for a drum screen includes a supporting wheel assembly, a supporting wheel shaft, two rolling bearings and two bearing seats;

[0008] The supporting wheel assembly includes a supporting wheel shaft seat and a supporting wheel sleeve; the supporting wheel shaft seat is coaxially and externally sleeved and fixed with a supporting wheel steel ring; the outer surface of the supporting wheel steel ring is detachably sleeved and installed with the supporting wheel sleeve;

[0009] Both ends of the outer wall of the supporting wheel steel ring are respectively recessed with annular grooves, and both ends of the supporting wheel sleeve are respectively provided with inward flanges, and the inward flanges are embedded in the annular grooves; the supporting wheel sleeve is made of polyurethane;

[0010] The supporting wheel shaft is fixedly penetrated through the inside of the supporting wheel shaft seat, and both ends of the supporting wheel shaft extending out of the supporting wheel shaft seat are respectively connected to the inside of the rolling bearings, and the rolling bearings are installed in the bearing seats.

[0011] Further, the supporting roller assembly further includes a supporting roller steel ring and two supporting roller auxiliary plates; the supporting roller shaft seat is in a hollow column shape, and outer ring grooves with reduced outer diameters are respectively arranged on the outer sides of both ends of the supporting roller shaft seat; the auxiliary plates are in an annular shape, and the two supporting roller auxiliary plates are respectively installed in the outer ring grooves at both ends of the supporting roller shaft seat to support and connect between the supporting roller shaft seat and the supporting roller steel ring.

[0012] Further, the supporting roller shaft seat is in a hollow column shape, and inner ring grooves with expanded inner diameters are respectively arranged on the inner sides of both ends of the supporting roller shaft seat; expansion sleeves are respectively installed in the inner ring grooves at both ends of the supporting roller shaft seat to coaxially fix the supporting roller shaft and the supporting roller shaft seat.

[0013] Further, the surface of the supporting roller sleeve made of polyurethane is provided with a grid pattern.

[0014] Further, the bearing seat includes a columnar body with a hollow interior and both ends communicating, which is used to install the rolling bearing and allow the supporting roller shaft to pass through; locking parts are respectively arranged at the front and rear ends of the columnar body, and lock holes are arranged on the locking parts. The bearing seat is installed on the frame by means of fasteners passing through the lock holes, and the supporting roller assembly horizontally protrudes from the bearing seat to support the drum screen.

[0015] Further, a tight top device is further included; long installation holes are arranged on the frame; the lock holes of the locking parts of the bearing seat are respectively aligned with the long installation holes, and the bearing seat and the frame are locked by fasteners passing through the lock holes and the long installation holes; the tight top device is arranged on the side of the bearing seat away from the drum screen; the tight top device includes a fixed seat and a movable rod, the fixed seat is fixed on the frame, and one end of the movable rod is adjustably connected to the fixed seat; the other end of the movable rod abuts against the locking part of the bearing seat.

[0016] Further, the movable rod can movably pass through the fixed seat, and adjusting nuts are respectively arranged on both sides of the fixed seat to lock the position of the movable rod; a top plate is arranged between the movable rod and the locking part.

[0017] Further, the fasteners include hexagon head bolts, hexagon nuts, elastic washers and square taper washers for channel steel; after the hexagon head bolts pass through the lock holes and the long installation holes, the bearing seat and the mounting plate are locked by the hexagon nuts, the elastic washers are installed between the hexagon head bolts and the locking parts, and the square taper washers for channel steel are installed between the hexagon nuts and the frame.

[0018] After adopting the above technical solution, the supporting roller sleeve is used in cooperation with the supporting roller steel ring and the supporting roller shaft seat. When the supporting roller sleeve is damaged, the supporting roller sleeve can be directly replaced, which is convenient for maintenance and saves costs; and the surface of the supporting roller ring is covered with the supporting roller sleeve made of polyurethane with the corresponding thickness, which can increase the service life and reduce the probability of degumming, cracking and deformation.

[0019] After actual measurement, the single wheel of the supporting wheel device of the present utility model can bear a weight of several tons, continuously operate for several hours every day, with a speed within 9 km / h, without degumming or cracking, low internal heat generation, high resilience, good comprehensive performance, simple structure, and convenient maintenance. Brief Description of the Drawings

[0020] Figure 1 Is a perspective view of an embodiment of the present utility model;

[0021] Figure 2 Is a top view of an embodiment of the present utility model;

[0022] Figure 3 Is a side view of an embodiment of the present utility model;

[0023] Figure 4 Is Figure 3 The sectional view taken along line A-A of ;

[0024] Figure 5 Is an exploded view of an embodiment of the present utility model;

[0025] Figure 6 Is a schematic diagram of the application of an embodiment of the present utility model to a drum screen;

[0026] Figure 7 Is Figure 6 The enlarged view at A of .

[0027] Reference Numeral Description: Supporting wheel device 10, supporting wheel assembly 1, wheel axle seat 11, inner ring groove 111, outer ring groove 112, supporting wheel steel ring 12, annular clamping groove 121, supporting wheel auxiliary plate 13, supporting wheel sleeve 14, inner flanging 141, supporting wheel shaft 2, expansion joint sleeve 3, rolling bearing 4, bearing seat 5, columnar body 51, locking portion 52, locking hole 521, adapter sleeve 6, tightening device 7, fixed seat 71, movable rod 72, adjusting nut 73, top plate 74, fastener 8, hexagon bolt 81, hexagon nut 82, elastic gasket 83, square bevel washer for channel steel 84, drum screen 20, frame 30, mounting plate 301, long strip mounting hole 302. Detailed Description of the Specific Embodiment

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations.

[0029] Such as Figures 1 to 5As shown in the figure, a kind of roller screen carrier wheel device 10 of the utility model includes a carrier wheel assembly 1, a carrier wheel shaft 2, a shrink disc 3, a rolling bearing 4, a bearing seat 5, a locking sleeve 6 and a jacking device 7.

[0030] Referring to Figure 4 and Figure 5 , the carrier wheel assembly 1 includes a carrier wheel shaft seat 11, a carrier wheel steel ring 12, two carrier wheel auxiliary plates 13 and a carrier wheel sleeve 14.

[0031] The carrier wheel shaft seat 11 coaxially externally sheathes the carrier wheel steel ring 12. In this embodiment, after the carrier wheel shaft seat 11, the carrier wheel steel ring 12 and the carrier wheel sleeve 14 are welded, they are machined to the corresponding dimensions. The carrier wheel shaft seat 11 is in a hollow column shape. At the same time, inner ring grooves 111 with an enlarged inner diameter are respectively arranged on the inner sides of both ends of the carrier wheel shaft seat 11, and outer ring grooves 112 with a reduced outer diameter are respectively arranged on the outer sides of both ends of the carrier wheel shaft seat 11.

[0032] The carrier wheel auxiliary plates 13 are in a ring shape, and the two carrier wheel auxiliary plates 13 are respectively installed in the outer ring grooves 112 at both ends of the carrier wheel shaft seat 11 to support and connect between the carrier wheel shaft seat 11 and the carrier wheel steel ring 12; the inner circular holes of the carrier wheel auxiliary plates 13 are sleeved on the outside of the carrier wheel shaft seat 11, and the outside of the carrier wheel auxiliary plates 13 supports the carrier wheel steel ring 12, and the fixing form is welding. It plays a role in supporting and connecting the carrier wheel shaft seat 11 and the carrier wheel steel ring 12.

[0033] The outer surface of the carrier wheel steel ring 12 is detachably externally sheathed with the carrier wheel sleeve 14. Annular clamping grooves 121 are respectively recessed at both ends of the outer wall of the carrier wheel steel ring 12. Inner flanges 141 are respectively arranged at both ends of the carrier wheel sleeve 14, and the inner flanges 141 are embedded in the annular clamping grooves 121 to perform limit fixing when the carrier wheel sleeve 14 is sleeved on the carrier wheel steel ring 12; the carrier wheel sleeve 14 of this embodiment is made of polyurethane and has a certain thickness. Polyurethane has the advantages of oil resistance, wear resistance, aging resistance, high hardness and elasticity, and can improve the service performance of the carrier wheel device 10.

[0034] The surface of the carrier wheel sleeve 14 made of polyurethane is provided with a grid pattern (not shown in the figure). The grid pattern generates friction force, and uses the friction to perform transmission cooperation with the roller screen 20 to avoid slipping.

[0035] The carrier wheel shaft 2 passes through the inside of the carrier wheel shaft seat 11. At the same time, shrink discs 3 are respectively installed in the inner ring grooves 111 at both ends of the carrier wheel shaft seat 11 to coaxially fix the carrier wheel shaft 2 and the carrier wheel shaft seat 11.

[0036] The rolling bearings 4, bearing seats 5, locking sleeves 6 and jacking devices 7 can all be two. The two ends of the supporting roller shaft 2 extending out of the supporting roller shaft seat 11 are respectively connected to the inside of the rolling bearings 4 through the locking sleeves 6. The rolling bearings 4 are installed in the bearing seats 5, so that the supporting roller assembly 1 can roll along the supporting roller shaft 2, and the two bearing seats 5 provide a supporting function. The supporting roller assembly 1 protrudes horizontally from the bearing seat 5 to support the drum screen 20.

[0037] The bearing seat 5 may include a columnar body 51 with a hollow interior and both ends communicating, which is used to install the rolling bearing 4 and allow the supporting roller shaft 2 to pass through. Locking parts 52 may be respectively provided at the front and rear ends of the columnar body 51, and lock holes 521 are provided on the locking parts 52. By passing a fastener 8 through the lock holes 521, the bearing seat 5 can be installed on the frame 30 (see Figure 6 ), and the fastener 8 may include a hexagonal bolt 81, a hexagonal nut 82, an elastic gasket 83 and a square bevel washer 84 for channel steel.

[0038] As Figure 7 shown, an installation plate 301 may be provided on the frame 30, and long strip installation holes 302 are provided on the installation plate 301. The lock holes 521 of the locking parts 52 of the bearing seat 5 are respectively aligned with the long strip installation holes 302. After the hexagonal bolt 81 passes through the lock holes 521 and the long strip installation holes 302, the bearing seat 5 and the installation plate 301 are locked by the hexagonal nut 82. The elastic gasket 83 may be installed between the hexagonal bolt 81 and the locking part 52, and the square bevel washer 84 for channel steel may be installed between the hexagonal nut 82 and the frame 30.

[0039] The jacking device 7 is arranged on the side of the bearing seat 5 away from the drum screen 20. The jacking device 7 includes a fixed seat 71 and a movable rod 72. The fixed seat 71 can be fixed on the frame 30 outside the installation plate 301, and one end of the movable rod 72 is adjustably connected to the inside of the fixed seat 71. The movable rod 72 can movably pass through the fixed seat 71, and adjusting nuts 73 are respectively provided on both sides of the fixed seat 71 to lock the position of the movable rod 72. The other end of the movable rod 72 abuts against the locking part 52 of the bearing seat 5, and a top plate 74 may be provided between the movable rod 72 and the locking part 52. Thus, when installing the supporting roller, by adjusting the position of the movable rod 72, the bearing seat 5 of the supporting roller can be jacked and controlled to move along the long strip installation holes 302, so as to finely adjust the position of the supporting roller device 10, realize the precise positioning of the supporting roller device 10, and ensure good contact between the supporting roller device 10 and the drum screen 20.

[0040] In summary, for the drum screen supporting roller device 10 of the present utility model, the supporting roller sleeve 14 is fitted to the supporting roller steel ring 12 and the supporting roller shaft seat 11. When the supporting roller sleeve 14 is damaged, the supporting roller sleeve 14 can be directly replaced, which is convenient for maintenance and saves costs. The surface of the supporting roller ring is covered with the supporting roller sleeve 14 made of polyurethane with a corresponding thickness, which can increase the service life and reduce the probability of degumming, cracking and deformation.

[0041] After actual measurement, the single wheel of the supporting wheel device 10 of the present utility model can bear a weight of several tons, continuously run for several hours every day, with a speed within 9 km / h, without delamination or cracking, low internal heat generation, high resilience, good comprehensive performance, simple structure and convenient maintenance.

[0042] The above is only the preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions within the idea of the present utility model belong to the protection scope of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, equivalent changes and modifications should still belong to the protection scope of the present utility model.

[0043] In the description of the embodiments of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of this application is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0044] In the description of the embodiments of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0045] In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

Claims

1. A roller screen supporting wheel device, characterized in that: It includes a supporting wheel assembly, a supporting wheel shaft, two rolling bearings and two bearing seats; The supporting wheel assembly includes a supporting wheel shaft seat and a supporting wheel sleeve; the supporting wheel shaft seat is coaxially and externally sleeved and fixed with a supporting wheel steel ring; the outer surface of the supporting wheel steel ring is detachably sleeved and installed with the supporting wheel sleeve; Both ends of the outer wall of the supporting wheel steel ring are respectively recessed with annular clamping grooves, and both ends of the supporting wheel sleeve are respectively provided with inward flanges, and the inward flanges are clamped in the annular clamping grooves; the supporting wheel sleeve is made of polyurethane; The supporting wheel shaft is fixedly passed through the inside of the supporting wheel shaft seat, and both ends of the supporting wheel shaft extending out of the supporting wheel shaft seat are respectively connected to the inside of the rolling bearings, and the rolling bearings are installed in the bearing seats.

2. The drum screen supporting wheel device according to claim 1, characterized in that: The supporting wheel assembly further includes a supporting wheel steel ring and two supporting wheel auxiliary plates; the supporting wheel shaft seat is in a hollow column shape, and outer ring grooves with reduced outer diameters are respectively provided on the outer sides of both ends of the supporting wheel shaft seat; the wheel auxiliary plates are in a ring shape, and the two supporting wheel auxiliary plates are respectively installed in the outer ring grooves at both ends of the supporting wheel shaft seat to support and connect between the supporting wheel shaft seat and the supporting wheel steel ring.

3. The drum screen supporting wheel device according to claim 1, characterized in that: The supporting wheel shaft seat is in a hollow column shape, and inner ring grooves with enlarged inner diameters are respectively provided on the inner sides of both ends of the supporting wheel shaft seat; expansion sleeves are respectively installed in the inner ring grooves at both ends of the supporting wheel shaft seat to coaxially fix the supporting wheel shaft and the supporting wheel shaft seat.

4. A roller screen supporting wheel device according to claim 1, characterized in that: The surface of the supporting wheel sleeve made of polyurethane is provided with a grid pattern.

5. A roller screen supporting wheel device according to claim 1, characterized in that: The bearing seat includes a columnar body, the inside of the columnar body is hollow and both ends are communicated, for installing the rolling bearing and for the supporting wheel shaft to pass through; locking parts are respectively provided at the front and rear ends of the columnar body, and lock holes are provided on the locking parts, and the bearing seat is installed on the frame by means of fasteners passing through the lock holes, and the supporting wheel assembly horizontally protrudes from the bearing seat to support the roller screen.

6. A roller screen carrier wheel device according to claim 5, characterized in that: It further includes a jacking device; long installation holes are provided on the frame; the lock holes of the locking parts of the bearing seat are respectively aligned with the long installation holes, and the bearing seat and the frame are locked after the fasteners pass through the lock holes and the long installation holes; the jacking device is arranged on the side of the bearing seat away from the roller screen; the jacking device includes a fixed seat and a movable rod, the fixed seat is fixed on the frame, and one end of the movable rod is adjustably connected to the inside of the fixed seat; the other end of the movable rod abuts against the locking part of the bearing seat.

7. A roller screen carrier wheel device according to claim 6, characterized in that: The movable rod can movably pass through the fixed seat, and adjusting nuts are respectively provided on both sides of the fixed seat to lock the position of the movable rod; a top plate is provided between the movable rod and the locking part.

8. The drum screen carrier roller device according to claim 6, characterized in that: The fasteners include hexagon bolts, hexagon nuts, elastic washers and square bevel washers for channel steel; after the hexagon bolts pass through the lock holes and the long installation holes, the bearing seat and the mounting plate are locked by means of the hexagon nuts, the elastic washers are installed between the hexagon bolts and the locking parts, and the square bevel washers for channel steel are installed between the hexagon nuts and the frame.

Images