Supporting wheel bearing cover, pusher supporting wheel and pusher

Abstract

The utility model discloses a supporting wheel bearing cover, a pusher supporting wheel and a pusher, and relates to the technical field of waste incineration. The supporting wheel bearing cover comprises an end cover plate, a first center hole is formed in the center of the end cover plate, a lining ring rotating around the axis of the lining ring is coaxially arranged in the first center hole, a first O-shaped ring is arranged between the lining ring and the first center hole, one surface of the end cover plate is a first sealing face, and the other surface of the end cover plate is a second sealing face. An oil seal groove is formed in the first sealing face, and an oil seal arranged on the lining ring in a sleeving mode is arranged in the oil seal groove. The supporting wheel bearing cover provided by the embodiment of the utility model is used for sealing the bearing of the supporting wheel, so that the bearing is not easily damaged by infiltration of percolate, the service life of the supporting wheel is prolonged, and the service time of a pusher is prolonged.

Description

Technical Field

[0001] This application relates to the field of waste incineration technology, specifically to a support wheel bearing cover, a pusher support wheel, and a pusher. Background Technology

[0002] A waste incinerator is a device for incinerating and processing waste. The feeder in the waste incinerator is responsible for pushing the waste from the feed inlet into the incinerator for combustion, ensuring that the waste is evenly distributed on the grate.

[0003] The pusher mainly includes a pusher frame, several support wheels mounted below the pusher frame and supported on a track, and a drive mechanism that drives the pusher frame to move along the track.

[0004] However, the existing support wheel bearings only use simple wool felt for dust protection, and the bearings of the support wheel are easily damaged by leachate, causing frequent blockage of the pusher grate, forcing a shortening of the waste incinerator's operating cycle and affecting production. Utility Model Content

[0005] The purpose of this application is to provide a support wheel bearing cover, a pusher support wheel, and a pusher, to solve the problem that the existing pusher support wheel is easily damaged by leachate.

[0006] The technical solution adopted by this application to solve its technical problem is:

[0007] In a first aspect, a support wheel bearing cover is provided, including an end cover plate. The end cover plate has a first central hole at its center. A bushing that rotates around its own axis is coaxially disposed in the first central hole. A first O-ring is disposed between the bushing and the first central hole. One surface of the end cover plate is a first sealing surface. An oil seal groove is disposed on the first sealing surface. An oil seal that is fitted on the bushing is disposed in the oil seal groove.

[0008] Furthermore, the oil seal includes a TC skeleton oil seal.

[0009] Furthermore, a first groove is provided on the wall of the first central hole, and the first O-ring is disposed in the first groove.

[0010] Furthermore, the bushing is a stainless steel bushing.

[0011] In a second aspect, a pusher support wheel is provided, comprising a central shaft and a wheel sleeved on the central shaft. The two ends of the wheel are respectively connected to the central shaft via bearings. The two ends of the central shaft are connected to a bracket. The two ends of the wheel are respectively connected to bearing caps covering the bearings. The bearing caps are the support wheel bearing caps provided in the first aspect. A bushing is coaxially disposed on the central shaft and a second O-ring is disposed between the two. The end cover plate is sealed to the end face of the wheel through the first sealing surface.

[0012] Furthermore, one side of the outer circumferential surface of the wheel has a flange that protrudes radially outward.

[0013] Furthermore, a bearing groove is provided on the end face of the wheel, and the bearing is disposed in the bearing groove.

[0014] Furthermore, the bracket includes a bracket base plate and two bracket side plates connected to the bracket base plate, and the two ends of the central shaft are respectively fixedly connected to the two bracket side plates.

[0015] Furthermore, one end of the bracket side plate is provided with an arc-shaped positioning groove, and the central shaft is fixed in the arc-shaped positioning groove.

[0016] Thirdly, a pusher is provided, including a pusher frame and a plurality of support wheels mounted on the bottom of the pusher frame, wherein the support wheels are pusher support wheels provided in the second aspect.

[0017] The beneficial effects of this application are:

[0018] The support wheel bearing cover, pusher support wheel, and pusher provided in this application embodiment use the support wheel bearing cover to seal the bearing of the support wheel, making the bearing less susceptible to damage from leachate intrusion, thereby improving the service life of the support wheel and extending the service life of the pusher. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the support wheel bearing cover provided in an embodiment of this application;

[0021] Figure 2 This is a structural schematic diagram of the end cap plate;

[0022] Figure 3 yes Figure 2 The left view;

[0023] Figure 4 This is a schematic diagram of the structure of the pusher support wheel provided in the embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the wheel structure;

[0025] Figure 6 yes Figure 5 The left view;

[0026] Figure 7 This is a schematic diagram of the central axis structure;

[0027] Figure 8 This is a schematic diagram of the support structure;

[0028] Figure 9 yes Figure 8 The left view.

[0029] Figure label:

[0030] 1-Central axis;

[0031] 11-Second groove;

[0032] 12 - Second bolt hole;

[0033] 2-Wheel;

[0034] 21-Flange;

[0035] 22-Bearing groove;

[0036] 23 - Second center hole;

[0037] 24-End cover plate groove;

[0038] 241 - First internal threaded hole;

[0039] 3-Bearings;

[0040] 4-Staff;

[0041] 41-Bracket base plate;

[0042] 42-Side plate of the bracket;

[0043] 421 - Arc-shaped positioning groove; 422 - Second internal thread hole;

[0044] 5-Bearing cover;

[0045] 51 - End cover plate;

[0046] 511 - First center hole; 512 - First sealing surface; 513 - Oil seal groove; 514 - First groove; 515 - First bolt hole;

[0047] 52-Ring;

[0048] 53 - First O-ring;

[0049] 54 - Oil seal;

[0050] 6 - Second O-ring. Detailed Implementation

[0051] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0052] In the description of this application, the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in actual application, provided that the relative positional relationships shown in the accompanying drawings are satisfied.

[0053] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0054] See Figure 1 , Figure 2 , Figure 3 This application provides a support wheel bearing cover, including an end cover plate 51. The end cover plate 51 has a first central hole 511 at its center. A bushing 52 that rotates around its own axis is coaxially disposed in the first central hole 511. A first O-ring 53 is disposed between the bushing 52 and the first central hole 511. One surface of the end cover plate 51 is a first sealing surface 512. An oil seal groove 513 is disposed on the first sealing surface 512. An oil seal 54 that is sleeved on the bushing 52 is disposed in the oil seal groove 513.

[0055] See Figure 2 , Figure 3 The end cover plate 51 is used to install the wheel 2 at the end by the first bolt, and serves to fix the bearing 3 and the wheel 2. The end cover plate 51 is roughly circular in shape. The center of the end cover plate 51 is provided with a first central hole 511 for installing the bushing 52. Several first bolt holes 515 for the first bolt to pass through are evenly distributed around the first central hole 511 on the end cover plate 51. One of the surfaces of the end cover plate 51 is finished to form a first sealing surface 512 for sealing and mating with the end face of the wheel 2.

[0056] See Figure 1 , Figure 2 An oil seal groove 513 is provided on the first sealing surface 512, and an oil seal 54 is installed in the oil seal groove 513. This oil seal is used not only to prevent the lubricating oil in the bearing 3 from leaking into the external environment, but also to prevent leachate from the external environment from entering the bearing 3. For example, the oil seal 54 includes a TC skeleton oil seal.

[0057] See Figure 1 The bushing 52 is installed in the first central hole 511 of the end cover plate 51. The outer surface of the bushing 52 is rotatable relative to the wall of the first central hole 511, and a first O-ring 53 is provided between them to prevent leachate from the external environment from entering the bearing 3. For example, a first groove 514 is provided on the wall of the first central hole 511, and the first O-ring 53 is disposed in the first groove 514. The outer surface of the bushing 52 also rubs against and rotates relative to the oil seal 54, and the inner surface of the bushing 52 is used for sliding engagement with the central shaft 1. For example, the bushing 52 is a stainless steel bushing. Stainless steel bushings have better corrosion resistance, reducing the corrosion rate at the contact points with the first O-ring 53 and the oil seal 54, and improving their service life.

[0058] The support wheel bearing cover provided in this embodiment is used to be installed at the end of the support wheel to seal the bearing 3 of the support wheel. The first O-ring 53 and the oil seal 54 form a double sealing structure, which makes the bearing 3 of the support wheel less susceptible to damage from leachate in the external environment, thereby improving the service life of the bearing 3.

[0059] See Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9This application provides a pusher support wheel, including a central shaft 1 and a wheel 2 sleeved on the central shaft 1. The two ends of the wheel 2 are respectively connected to the central shaft 1 through bearings 3. The two ends of the central shaft 1 are connected to the bracket 4. The two ends of the wheel 2 are respectively connected to bearing caps 5 covering the bearings 3. The bearing caps 5 are support wheel bearing caps. The bushing 52 is coaxially arranged on the central shaft 1 and a second O-ring 6 is arranged between the two. The end cover plate 51 is sealed to the end face of the wheel 2 through the first sealing surface 512.

[0060] See Figure 5 , Figure 6 The wheel 2 has a cylindrical structure with a second central hole 23 through its center. The inner diameter of the second central hole 23 is larger than the outer diameter of the central shaft 1 so that the central shaft 1 can pass through the central hole 23. Bearing grooves 22 for mounting bearings 3 are respectively provided on the end faces of both ends of the wheel 2. End cover plate grooves 24 for positioning end cover plates 51 are also provided on the end faces of both ends of the wheel 2. The bottom of the end cover plate groove 24 is provided with a first internal thread hole 241 corresponding to the first bolt hole 515 of the end cover plate 51 and used for threaded connection with the first bolt. One side of the outer circumference of the wheel 2 also has a flange 21 that protrudes outward along its radial direction.

[0061] See Figure 4 Two bearings 3 are respectively installed in bearing grooves 22 at both ends of the wheel 2, and the outer rings of the bearings 3 are tightly fitted with the bearing grooves 22. The end caps 51 of the two bearing caps 5 are respectively installed in the end cap grooves 24 at both ends of the bearings 3 and are sealed to both ends of the wheel 2 by the first bolts. The central shaft 1 passes through the second central hole 23 of the wheel 2, the inner holes of the two bearings 3, and the inner holes of the two bushings 52. The outer surface of the central shaft 1 is tightly fitted with the inner ring of the bearing 3; the outer surface of the central shaft 1 is slidably fitted with the inner surface of the bushing 52, and a second O-ring 6 is provided between the two to prevent leachate from the external environment from entering the bearing 3 through the space between them. For example, see Figure 7 The outer surface of the central shaft 1 is provided with a second groove 11, and the second O-ring 6 is disposed in the second groove 11. Both ends of the central shaft 1 are connected to the bracket 4, which is installed at the bottom of the pusher carriage frame during use.

[0062] See Figure 8 , Figure 9 The bracket 4 includes a bracket base plate 41 and two bracket side plates 42 connected to the bracket base plate 41. The two ends of the central shaft 1 are fixedly connected to the two bracket side plates 42 respectively.

[0063] Specifically, the two support side plates 42 are arranged in parallel, one end of the two support side plates 42 is welded to the support base plate 41, and the other end of the two support side plates 42 is connected to both ends of the central shaft 1. For example, one end of the support side plate 42 is provided with an arc-shaped positioning groove 421, and the central shaft 1 is fixed in the arc-shaped positioning groove 421.

[0064] For example, the central shaft 1 is provided with a second bolt hole 12 for the second bolt to pass through, and the arc-shaped positioning groove 421 is provided with a second internal thread hole 422 corresponding to the second bolt hole 12 and used for threaded connection with the second bolt. During installation, first place the central shaft 1 in the arc-shaped positioning groove 421, align the second bolt hole 12 with the second internal thread hole 422, then insert the second bolt into the second bolt hole 12 and thread it into the second internal thread hole 422, and tighten the second bolt.

[0065] This application embodiment also provides a pusher, including a pusher frame and a plurality of support wheels mounted on the bottom of the pusher frame, the support wheels being pusher support wheels. For example, 36 support wheels are mounted on the bottom of the pusher frame, and the bracket 4 of each support wheel is fixedly connected to the pusher frame.

[0066] The existing support wheels only use simple wool felt for dust protection on the outer end of the bearing. The support wheels will generally start to show varying degrees of rust and jamming after two months of use. The support wheels are not easy to inspect and repair while in operation. Once the support wheels are damaged, it will seriously affect the operation. Therefore, a large number of support wheels need to be replaced after each furnace shutdown, and the replacement cost is high.

[0067] The pusher support wheel provided in this application embodiment has a multi-seal structure composed of a first sealing surface 512, a first O-ring 53, an oil seal 54, and a second O-ring 53, which makes the bearing 3 of the support wheel less susceptible to damage from leachate in the external environment. After the support wheel with this structure was put into operation for one year, the furnace was shut down for inspection and it was found that the working condition of the support wheel was good, and there was no jamming of the pusher grate during operation.

[0068] Therefore, compared with existing support wheels, this application improves the service life of the support wheels, thereby extending the service life of the pusher and reducing replacement costs.

[0069] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A support wheel bearing cover, characterized in that, The device includes an end cover plate (51), the end cover plate (51) having a first central hole (511) at its center, a bushing (52) coaxially disposed in the first central hole (511) and rotating around its own axis, a first O-ring (53) being disposed between the bushing (52) and the first central hole (511), one of the surfaces of the end cover plate (51) being a first sealing surface (512), an oil seal groove (513) being disposed on the first sealing surface (512), and an oil seal (54) fitted on the bushing (52) being disposed in the oil seal groove (513).

2. The support wheel bearing cover according to claim 1, characterized in that, The oil seal (54) includes a TC skeleton oil seal.

3. The support wheel bearing cover according to claim 1, characterized in that, A first groove (514) is provided on the wall of the first central hole (511), and the first O-ring (53) is disposed in the first groove (514).

4. The support wheel bearing cover according to claim 1, characterized in that, The bushing (52) is a stainless steel bushing.

5. A feeder support wheel, characterized in that, The assembly includes a central shaft (1) and a wheel (2) fitted on the central shaft (1). The two ends of the wheel (2) are connected to the central shaft (1) via bearings (3). The two ends of the central shaft (1) are connected to a bracket (4). The two ends of the wheel (2) are respectively connected to bearing caps (5) covering the bearings (3). The bearing caps (5) are the support wheel bearing caps as described in any one of claims 1 to 4. The bushing (52) is coaxially arranged on the central shaft (1) and a second O-ring (6) is arranged between them. The end cover plate (51) is sealed to the end face of the wheel (2) through the first sealing surface (512).

6. The pusher support wheel according to claim 5, characterized in that, The wheel (2) has a flange (21) that protrudes outward along its radial direction on one side of its outer peripheral surface.

7. The pusher support wheel according to claim 5, characterized in that, The end face of the wheel (2) is provided with a bearing groove (22), and the bearing (3) is disposed in the bearing groove (22).

8. The pusher support wheel according to claim 5, characterized in that, The bracket (4) includes a bracket base plate (41) and two bracket side plates (42) connected to the bracket base plate (41). The two ends of the central shaft (1) are respectively fixedly connected to the two bracket side plates (42).

9. The pusher support wheel according to claim 8, characterized in that, An arc-shaped positioning groove (421) is provided at one end of the side plate (42) of the bracket, and the central shaft (1) is fixed in the arc-shaped positioning groove (421).

10. A feeder, characterized in that, It includes a pusher frame and a plurality of support wheels mounted on the bottom of the pusher frame, wherein the support wheels are pusher support wheels as described in any one of claims 5 to 9.

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