Self-guiding and aligning device for ring coal feeder

Abstract

The utility model relates to a kind of ring coal feeder vehicle body walking self-guided aligning device;The ring coal feeder vehicle body walking self-guided aligning device is arranged at the bottom of the overhanging part of annular vehicle body, including the wheel seat fixed with the bottom of annular vehicle body, the aligning wheel installed on the wheel seat and located at the side of annular track;Aligning wheel is horizontally rotatably connected with wheel seat, and cooperates with the side of annular track.The aligning wheel of the utility model cooperates with the side of annular track, realizes the horizontal limiting of annular vehicle body, adjusts the concentricity of annular vehicle body and annular track, and reduces the coal leakage phenomenon.

Description

Technical Field

[0001] This utility model relates to the technical field of ring feeder accessories, and in particular to a ring feeder vehicle body self-guiding and self-aligning device. Background Technology

[0002] A ring feeder is a large-scale coal feeding device specifically designed for use in medium and large-sized thermal power plants. It typically includes a silo, a plow car, a feed car, and an unloading plow. The silo stores large quantities of coal and has an annular slit at the bottom. Both the plow car and the feed car have annular bodies and are equipped with independent drives and positioning. The plow car is located at the annular slit and is equipped with circumferentially distributed plow claws. The plow claws extend into the annular slit and plow off the coal that falls into it. The feed car rotates in the opposite direction to the plow car and is positioned below it; the plowed coal falls onto the feed car. The unloading plow is located at the unloading point, spanning the feed car, and plows the coal from the feed car to the unloading point. See the patent for a ring feeder with authorization announcement number CN2044247U. The annular body is supported on a circular track by wheels and uses guide wheels for horizontal stops. The wheels and guide wheels are used together and are usually installed together. This ensures that the annular car body with wheels and guide wheels is concentric with the annular track; however, the annular car body without guide wheels is difficult to concentric with the annular track, which can easily lead to coal leakage. Utility Model Content

[0003] The purpose of this invention is to solve the above problems and provide a self-guiding and self-aligning device for the movement of a ring-type coal feeder car body.

[0004] The technical solution of this utility model is as follows: A self-guiding self-aligning device for a ring-shaped coal feeder car body is installed at the bottom of the suspended part of the ring car body, including a wheel seat fixed to the bottom of the ring car body and a self-aligning wheel installed on the wheel seat on the side of the ring track; the self-aligning wheel is horizontally rotatably connected to the wheel seat and cooperates with the side of the ring track to realize the horizontal limit of the ring car body, adjust the concentricity of the ring car body and the ring track, and reduce coal leakage.

[0005] Preferably, the wheel seat includes a top plate, a bottom plate, and two side plates; the top plate is welded and fixed to the bottom of the annular vehicle body; the side plates are symmetrically arranged on both sides of the bottom plate; the upper end of the side plate is fixed to the top plate, and the lower end is fixed to the bottom plate, forming a cavity; the self-aligning wheel is arranged in the cavity between the two side plates, which not only ensures the structural strength of the wheel seat, but also ensures the stable operation of the self-aligning wheel.

[0006] Furthermore, the wheel seat also includes a back plate; the upper and lower ends of the back plate are connected to the top plate and the bottom plate respectively; the left and right ends of the back plate are connected to the side plates respectively; the back plate shields the back of the wheel seat, which can reduce the entry of coal dust into the cavity between the two side plates and affect the normal operation of the self-aligning wheel.

[0007] Furthermore, the length of the top plate is greater than the length of the bottom plate; the wheel seat also includes triangular ribs; one side of the triangular rib is connected to the side plate, and the other side is connected to the top plate; there are four triangular ribs, which are set at the corners of the bottom plate; the triangular ribs can strengthen the structural strength of the wheel seat.

[0008] Furthermore, the self-aligning wheel includes a horizontal wheel body, a horizontal bearing, a stepped shaft, and a mounting nut; the stepped shaft passes through the horizontal wheel body and the base plate from bottom to top, and is threadedly connected to the mounting nut; the horizontal bearing is installed at the lower end of the stepped shaft and nested in the horizontal wheel body; the horizontal bearing can reduce the resistance to the rotation of the horizontal wheel body; the side of the horizontal wheel body cooperates with the side of the circular track to achieve horizontal limit and adjust the concentricity of the circular car body and the circular track.

[0009] Furthermore, the base plate is provided with a transverse elongated hole that matches the step axis; the transverse elongated hole is set along the normal of the annular track; the transverse elongated hole is used to adjust the transverse position of the horizontal wheel body to ensure that the side of the horizontal wheel body and the side of the annular track maintain a suitable fit clearance.

[0010] Furthermore, the self-aligning wheel also includes a lock nut; the lock nut is threaded to the upper end of the stepped shaft and abuts against the mounting nut; the lock nut can prevent the mounting nut from falling off.

[0011] Furthermore, the self-aligning wheel also includes a lower cover, an upper cover, and a grease nipple; the horizontal wheel body has a vertical through hole for installing a horizontal bearing, serving as the basic structure of the lubrication chamber; the lower cover is closedly connected to the lower end of the vertical through hole; the upper cover is closedly connected to the upper end of the vertical through hole; the lower cover and the upper cover form a sealed space for the lubrication chamber; the stepped shaft has an axial lubrication channel; the grease nipple is installed at the upper end of the lubrication channel; grease is injected into the lubrication channel through the grease nipple; the grease enters the bottom of the lubrication chamber through the lubrication channel, and then flows upward into the position of the horizontal bearing to lubricate the horizontal bearing and reduce the rotational resistance of the horizontal wheel body; the upper cover has a through hole that matches the stepped shaft so that the stepped shaft can pass through.

[0012] Furthermore, a sealing ring is nested inside the through hole to enhance the sealing effect between the stepped shaft and the through hole.

[0013] Furthermore, the upper end face of the horizontal wheel body is provided with a recessed groove A that matches the upper cover; the lower end face of the horizontal wheel body is provided with a recessed groove B that matches the lower cover; the upper cover is embedded in the recessed groove A; the lower cover is embedded in the recessed groove B, thereby improving the sealing effect of the upper cover, the lower cover and the horizontal wheel body.

[0014] Furthermore, the upper end face of the lower cover is provided with an upwardly extending limiting flange A; the lower end face of the upper cover is provided with a downwardly extending limiting flange B; limiting flanges A and B abut against the outer ring of the horizontal bearing, thereby vertically limiting the horizontal bearing.

[0015] The beneficial effects of this utility model are as follows: The ring-type coal feeder car body self-guiding and self-aligning device of this utility model has the following advantages:

[0016] (1) The self-aligning wheel of this utility model cooperates with the side of the ring track to achieve horizontal positioning of the ring car body, adjust the concentricity of the ring car body and the ring track, and reduce coal leakage.

[0017] (2) The transverse elongated hole of this utility model can adjust the transverse position of the horizontal wheel body, ensuring that the side of the horizontal wheel body and the side of the ring track maintain a suitable fit clearance;

[0018] (3) In this invention, grease is injected into the oiling channel through the grease nipple; the grease enters the bottom of the oiling cavity through the oiling channel and then flows upward into the position of the horizontal bearing to lubricate the horizontal bearing and reduce the rotational resistance of the horizontal wheel. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the working process of the self-guiding and self-aligning device for the ring-shaped coal feeder car body of this utility model;

[0020] Figure 2 This is a front view of the self-guiding and self-aligning device for the ring-shaped coal feeder car body of this utility model;

[0021] Figure 3 yes Figure 2 AA section view;

[0022] Figure 4 yes Figure 3 A magnified view of the I-shaped image;

[0023] Figure 5 yes Figure 3 BB cross-sectional view;

[0024] Figure 6 yes Figure 5 II magnified view;

[0025] Figure 7 This is a schematic diagram of the working process of the self-guiding and self-aligning device for the ring-shaped coal feeder car body of this utility model;

[0026] In the diagram: 01. Circular body, 02. Circular track, 1. Wheel seat, 11. Top plate, 12. Bottom plate, 121. Horizontal elongated hole, 13. Side plate, 14. Back plate, 15. Triangular rib plate, 2. Self-aligning wheel, 21. Horizontal wheel body, 211. Vertical through hole, 212. Lower groove A, 213. Lower groove B, 22. Horizontal bearing, 23. Stepped shaft, 231. Lower step, 232. Snap ring groove, 233. Upper step, 234. Oil injection channel, 24. Mounting nut, 25. Shaft clip, 26. Anti-loosening nut, 27. Lower cover, 271. Limiting flange A, 272. Connecting screw B, 28. Upper through cover, 281. Through hole, 282. Sealing ring, 283. Limiting flange B, 284. Connecting screw A, 29. Grease nipple. Detailed Implementation

[0027] Example 1: See Figure 1-7 A self-guiding self-aligning device for a ring-shaped coal feeder is installed at the bottom of the suspended part of the ring-shaped car body 01. It includes a wheel seat 1 fixed to the bottom of the ring-shaped car body 01 and a self-aligning wheel 2 installed on the wheel seat 1 on the side of the ring track 02. The self-aligning wheel 2 is horizontally rotatably connected to the wheel seat 1 and cooperates with the side of the ring track 02 to realize the horizontal limit of the ring-shaped car body 01, adjust the concentricity of the ring-shaped car body 01 and the ring track 02, and reduce coal leakage.

[0028] Compared with the prior art, the self-aligning wheel 2 of this utility model cooperates with the side of the annular track 02 to achieve horizontal limiting of the annular car body 01, adjust the concentricity of the annular car body 01 and the annular track 02, and reduce coal leakage.

[0029] The wheel seat 1 includes a top plate 11, a bottom plate 12, and two side plates 13. The top plate 11 is welded and fixed to the bottom of the annular vehicle body 01. The side plates 13 are symmetrically arranged on both sides of the bottom plate 12. The upper end of the side plate 13 is fixed to the top plate 11, and the lower end is fixed to the bottom plate 12, forming a cavity. The self-aligning wheel 2 is arranged in the cavity between the two side plates 13, which not only ensures the structural strength of the wheel seat 1, but also ensures the stable operation of the self-aligning wheel 2.

[0030] The wheel seat 1 also includes a back plate 14; the upper and lower ends of the back plate 14 are connected to the top plate 11 and the bottom plate 12 respectively; the left and right ends of the back plate 14 are connected to the side plates 13 respectively; the back plate 14 shields the back of the wheel seat 1, which can reduce the entry of coal dust into the cavity between the two side plates 13 and affect the normal operation of the self-aligning wheel 2.

[0031] The length of the top plate 11 is greater than the length of the bottom plate 12; the wheel seat 1 also includes a triangular rib plate 15; one side of the triangular rib plate 15 is connected to the side plate 13, and the other side is connected to the top plate 11; there are four triangular rib plates 15, which are set at the corners of the bottom plate 12; the triangular rib plates 15 can strengthen the structural strength of the wheel seat 1.

[0032] The self-aligning wheel 2 includes a horizontal wheel body 21, a horizontal bearing 22, a stepped shaft 23, and a mounting nut 24. The stepped shaft 23 passes through the horizontal wheel body 21 and the base plate 12 from bottom to top and is threadedly connected to the mounting nut 24. The horizontal bearing 22 is installed at the lower end of the stepped shaft 23 and is nested inside the horizontal wheel body 21. The horizontal bearing 22 can reduce the resistance to the rotation of the horizontal wheel body 21. The side of the horizontal wheel body 21 cooperates with the side of the annular track 02 to achieve horizontal limit and adjust the concentricity of the annular car body 01 and the annular track 02.

[0033] The stepped shaft 23 is provided with a lower step 231, a retaining ring groove 232, and an upper step 233 from bottom to top; the self-aligning wheel 2 also includes a shaft retainer 25; the shaft retainer 25 is installed in the retaining ring groove 232 and abuts against the upper end of the inner ring of the horizontal bearing 22; the lower step 231 abuts against the lower end of the inner ring of the horizontal bearing 22; the shaft retainer 25 cooperates with the lower step 231 to vertically limit the horizontal bearing 22; the upper step 233 abuts against the bottom of the base plate 12 to ensure that the horizontal wheel body 21 is in the appropriate position.

[0034] The base plate 12 is provided with a transverse elongated hole 121 that matches the step shaft 23; the transverse elongated hole 121 is set along the normal of the annular track 02; the transverse elongated hole 121 is used to adjust the transverse position of the horizontal wheel 21 to ensure that the side of the horizontal wheel 21 and the side of the annular track 02 maintain a suitable fit clearance.

[0035] The self-aligning wheel 2 also includes a lock nut 26; the lock nut 26 is threaded to the upper end of the stepped shaft 23 and abuts against the mounting nut 24; the lock nut 26 can prevent the mounting nut 24 from falling off.

[0036] The self-aligning wheel 2 also includes a lower cover 27, an upper through cover 28, and a grease nipple 29; the horizontal wheel body 21 has a vertical through hole 211 for installing the horizontal bearing 22, which serves as the basic structure of the oil filling cavity; the lower cover 27 is closedly connected to the lower end of the vertical through hole 211; the upper through cover 28 is closedly connected to the upper end of the vertical through hole 211; the lower cover 27 and the upper through cover 28 form a sealed space for the oil filling cavity; the stepped shaft 23 has an axial oil filling channel 234; the grease nipple 29 is installed at the upper end of the oil filling channel 234; grease is injected into the oil filling channel 234 through the grease nipple 29; the grease enters the bottom of the oil filling cavity through the oil filling channel 234, and then flows upward into the position of the horizontal bearing 22 to lubricate the horizontal bearing 22 and reduce the rotational resistance of the horizontal wheel body 21; the upper through cover 28 has a through hole 281 that matches the stepped shaft 23 so that the stepped shaft 23 can pass through.

[0037] A sealing ring 282 is nested inside the through hole 281 to enhance the sealing effect between the stepped shaft 23 and the through hole 281.

[0038] The working principle of this embodiment is as follows: The self-aligning wheel 2 engages with the side of the annular track 02 to achieve horizontal positioning of the annular car body 01, adjusting the concentricity of the annular car body 01 and the annular track 02, thus reducing coal leakage; the back plate 14 shields the back of the wheel seat 1, reducing the entry of coal dust into the cavity between the two side plates 13, which would affect the normal operation of the self-aligning wheel 2; the transverse elongated hole 121 can adjust the transverse position of the horizontal wheel body 21, ensuring that the side of the horizontal wheel body 21 and the side of the annular track 02 maintain a suitable fit clearance. Grease is injected into the oil injection channel 234 through the grease nipple 29; the grease enters the bottom of the oil injection cavity through the oil injection channel 234, and then flows upward to the location of the horizontal bearing 22, lubricating the horizontal bearing 22 and reducing the rotational resistance of the horizontal wheel body 21.

[0039] Example 2: Example 2 is basically the same as Example 1, and the similarities will not be repeated. The difference is that: the upper end face of the horizontal wheel body 21 is provided with a recessed groove A 212 that matches the upper cover 28; the lower end face of the horizontal wheel body 21 is provided with a recessed groove B 213 that matches the lower cover 27; the upper cover 28 is embedded in the recessed groove A 212; the lower cover 27 is embedded in the recessed groove B 213, which improves the sealing effect of the upper cover 28, the lower cover 27 and the horizontal wheel body 21.

[0040] The upper end face of the lower cover 27 is provided with an upwardly extending limiting flange A 271; the lower end face of the upper cover 28 is provided with a downwardly extending limiting flange B 283; the limiting flange A 271 and the limiting flange B 283 abut against the outer ring of the horizontal bearing 22, thereby vertically limiting the horizontal bearing 22.

[0041] Several connecting screws A 284 are distributed around the top edge of the upper cover 28; the connecting screws A 284 pass through the edge of the upper cover 28 and are threadedly connected to the horizontal wheel 21 to achieve a fixed connection between the upper cover 28 and the horizontal wheel 21; several connecting screws B 272 are distributed around the bottom edge of the lower cover 27; the connecting screws B 272 pass through the edge of the lower cover 27 and are threadedly connected to the horizontal wheel 21 to achieve a fixed connection between the lower cover 27 and the horizontal wheel 21.

Claims

1. A self-guiding and self-aligning device for a ring-type coal feeder car body, characterized in that, Located at the bottom of the suspended part of the annular car body, it includes a wheel seat fixed to the bottom of the annular car body and a self-aligning wheel mounted on the wheel seat on the side of the annular track; the self-aligning wheel is horizontally rotatably connected to the wheel seat and cooperates with the side of the annular track.

2. The self-guiding and self-aligning device for the ring-type coal feeder car body according to claim 1, characterized in that: The wheel seat includes a top plate, a bottom plate, and two side plates; the top plate is welded and fixed to the bottom of the annular vehicle body; the side plates are symmetrically arranged on both sides of the bottom plate; the upper end of the side plate is fixed to the top plate, and the lower end is fixed to the bottom plate; the self-aligning wheel is arranged between the two side plates.

3. The self-guiding and self-aligning device for the ring-type coal feeder car body according to claim 2, characterized in that: The wheel seat also includes a back plate; the upper and lower ends of the back plate are connected to the top plate and the bottom plate, respectively; the left and right ends of the back plate are connected to the side plates, respectively.

4. The self-guiding and self-aligning device for the ring-type coal feeder car body according to claim 2, characterized in that: The self-aligning wheel includes a horizontal wheel body, a horizontal bearing, a stepped shaft, and a mounting nut; the stepped shaft passes through the horizontal wheel body and the base plate from bottom to top and is threadedly connected to the mounting nut; the horizontal bearing is installed at the lower end of the stepped shaft and nested in the horizontal wheel body; the side of the horizontal wheel body mates with the side of the annular track.

5. The self-guiding and self-aligning device for the ring-type coal feeder car body according to claim 4, characterized in that: The base plate is provided with a transverse elongated hole that matches the step axis; the transverse elongated hole is set along the normal of the annular track.

6. The self-guiding and self-aligning device for the ring-type coal feeder car body according to claim 5, characterized in that: The self-aligning wheel also includes a lock nut; the lock nut is threaded to the upper end of the stepped shaft and abuts against the mounting nut.

7. The self-guiding and self-aligning device for the ring-type coal feeder car body according to claim 5, characterized in that: The self-aligning wheel also includes a lower cover, an upper cover, and a grease nipple; the horizontal wheel body is provided with a vertical through hole for installing a horizontal bearing; the lower cover is closedly connected to the lower end of the vertical through hole; the upper cover is closedly connected to the upper end of the vertical through hole; the stepped shaft is provided with an axial oil injection channel; the grease nipple is installed at the upper end of the oil injection channel; the upper cover is provided with a through hole that matches the stepped shaft.

8. The self-guiding and self-aligning device for the ring-type coal feeder car body according to claim 7, characterized in that: A sealing ring is nested inside the through hole.

9. The self-guiding and self-aligning device for the ring-type coal feeder car body according to claim 7, characterized in that: The upper end face of the horizontal wheel body is provided with a recessed groove A that matches the upper transparent cover; the lower end face of the horizontal wheel body is provided with a recessed groove B that matches the lower cover; the upper transparent cover is embedded in the recessed groove A; the lower cover is embedded in the recessed groove B.

10. The self-guiding and self-aligning device for the ring-type coal feeder car body according to claim 7, characterized in that: The upper end face of the lower cover is provided with an upwardly extending limiting flange A; the lower end face of the upper cover is provided with a downwardly extending limiting flange B; limiting flanges A and B abut against the outer ring of the horizontal bearing.

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