Riding wheel mechanism of bottom-dump mine car unloading station and unloading station

Abstract

The utility model discloses a riding wheel mechanism of a bottom-dump mine car unloading station and the unloading station. The riding wheel mechanism comprises a riding wheel seat (the position of the riding wheel seat is fixed), a riding wheel, a riding wheel shaft, a bearing, an end cover and a transparent cover, as the riding wheel shaft is horizontally mounted, the lower edge of the mine car wing plate and the outer contour surface of the riding wheel form a certain inclination angle, the inclination angle of the outer contour surface of the riding wheel is matched with the inclination angle of the lower edge of the mine car wing plate, and the section of the outer contour surface of the riding wheel is a section of arc, the outer contour surface of the riding wheel is just in point contact with the lower edge of the mine car wing plate; therefore, abrasion and deformation of the lower edge of the mine car wing plate and the outer contour surface of the riding wheel caused by inconsistent linear speeds of the large end and the small end of the outer contour surface when the outer contour surface of the riding wheel is in contact with the lower edge of the mine car wing plate can be well avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of unloading of bottom-discharging mine cars, in particular to a supporting wheel mechanism and an unloading station of a bottom-discharging mine car unloading station. Background Art

[0002] The mine car unloading station is an important part of the mine transportation system, mainly used to unload the ore from the mine car to the ground or other transportation equipment. At present, the bottom unloading mine car unloading station is a common unloading method. The bottom door of the mine car in this unloading method is hinged on the frame on one side, and the unloading wheel is installed on the bottom of the car on the other side. When the mine car enters the unloading station, the center wheel mechanism on both sides of the unloading station maintains the horizontal forward direction of the mine car, and the supporting wheel mechanism on both sides of the unloading pit lifts the mine car carriage, so that the mine car wheel is off the basic track, and then, the unloading wheel installed on the bottom of the car is opened, unloaded, and closed by gravity and the motion trajectory on the curved track.

[0003] The supporting wheel mechanism currently used is responsible for providing support for the mine car and has a certain protective effect. The outer contour surface of the supporting wheel contacts the lower side of the mine car wing plate, supports the mine car, and then guides the mine car to move forward in the horizontal direction without deviating from the basic center position range. However, the current traditional supporting wheel mechanism has the following defects in use:

[0004] 1. When the bottom-dumping mine car enters the unloading station, due to the line contact between the mine car wing plate and the outer contour surface of the supporting wheel, the linear speed of the large end of the outer contour surface of the supporting wheel is inconsistent with the linear speed of the small end. With the long-term use of the mine car, the mine car wing plate and the outer contour surface of the supporting wheel will be severely worn, causing damage and affecting normal use.

[0005] 2. When the wing plate of the mine car contacts the outer contour surface of the supporting wheel, the linear speeds of the large end and the small end are inconsistent, which causes secondary friction during the movement of the mine car, increases resistance, and reduces efficiency.

[0006] 3. In the supporting roller mechanism, rolling bearings are installed on the supporting roller shaft and grease is added to reduce friction. However, the replenishment and replacement of grease requires the removal of the transparent cover or end cover, and manual operation is relatively cumbersome.

[0007] 4. There is a lot of smoke and dust at the unloading site. After long-term use, the dust can easily enter the bearings, contaminate the grease, and cause damage to the bearings. Utility Model Content

[0008] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a tug mechanism for a bottom-unloading mine car unloading station, which has a compact structure, reasonable design, simple installation and maintenance, and a longer service life.

[0009] The utility model also provides an unloading station equipped with the supporting wheel mechanism.

[0010] According to the first aspect of the embodiment of the utility model, the roller support mechanism of the bottom-discharge mine car unloading station includes a roller, a roller support seat, a roller support shaft, a bearing, an end cover and a transparent cover, the roller is horizontally installed on the roller support shaft, the roller support shaft is rotatably supported by a pair of bearings and is placed in the roller support seat; the bearings are installed face to face or back to back; the end cover and the transparent cover are respectively installed on both sides of the roller support seat; the roller is installed on one side of the roller support seat.

[0011] The supporting wheel mechanism of the bottom-dumping mine car unloading station according to the embodiment of the utility model has at least the following beneficial effects:

[0012] In the roller mechanism described in the utility model, since the roller shaft is installed horizontally, the lower edge of the mine car wing plate and the outer contour surface of the roller have a certain inclination angle, and the inclination angle of the outer contour surface of the roller matches the inclination angle of the lower edge of the mine car wing plate. The cross-section of the outer contour surface of the roller is a circular arc. Therefore, the outer contour surface of the roller just contacts with the lower edge of the mine car wing plate, and the contact is point contact, which can effectively avoid the wear and deformation of the lower edge of the mine car wing plate and the outer contour surface of the roller due to the inconsistent linear speed of the large end and the small end of the outer contour surface when the outer contour surface of the roller contacts the lower edge of the mine car wing plate.

[0013] According to some embodiments of the utility model, the supporting wheel is a conical structure, and the outer contour surface of the supporting wheel is an arc surface, and a rim is provided at the large end of the supporting wheel. This structure can effectively prevent the transparent cover from scratching or even colliding with the wing plate of the mine car, thereby preventing the wing plate of the mine car from damaging the transparent cover and the bolts on the transparent cover, and ensuring the normal use of the supporting wheel mechanism.

[0014] According to some embodiments of the utility model, the axial clearance at both ends of the supporting roller seat is adjusted by copper or aluminum gaskets at the contact surfaces with the end cover and the transparent cover, which not only ensures the normal use of the bearing, but also prevents the bearing from expanding and getting stuck due to increased temperature during operation, thereby ensuring the normal use of the supporting roller mechanism.

[0015] According to some embodiments of the utility model, the end cover is fixed and locked on the supporting roller seat by bolts, and a pair of top screw holes are provided on the end cover.

[0016] According to some embodiments of the utility model, the top of the supporting roller seat is provided with a grease injection hole, and the oblique lower side thereof is provided with a grease removal hole for replenishing and replacing the grease.

[0017] According to some embodiments of the utility model, the bearing is lubricated with grease, and the transparent cover and the end cover are sealed with lip-shaped oil seals and gaskets, so that the transparent cover can be hidden behind the supporting wheel to avoid being scratched by the mine car compartment.

[0018] According to the unloading station of the second embodiment of the utility model, the unloading station includes an unloading curved rail, a supporting wheel, a supporting wheel supporting beam, and a pushing device, and the supporting wheel mechanism is arranged in pairs on both sides of the unloading curved rail;

[0019] The unloading station is divided into a heavy-load section and a light-load section; the wing plates of the mine car entering the unloading station are in contact with the outer contour surfaces of the supporting wheels of the supporting wheel mechanisms on both sides.

[0020] The unloading station according to the embodiment of the utility model has at least the following beneficial effects:

[0021] The unloading station of the supporting wheel mechanism has supporting wheels with inwardly inclined angles installed in pairs on both sides of the unloading station, which can effectively prevent the mine car from deflecting.

[0022] According to some embodiments of the present invention, the supporting wheel mechanisms on both sides of the unloading curved track have different arrangement densities in the heavy-load section and the light-load section.

[0023] The higher layout density of the heavy-load section of the unloading station can evenly disperse the load-bearing capacity of each supporting roller mechanism, ensure the safe operation of the supporting roller mechanism, and ensure the normal unloading of the mine car, while the lower layout density of the light-load section can save the corresponding manufacturing cost within a safe range.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 This is a partial enlarged view of part Ⅰ;

[0028] Figure 3 It is a top view of the utility model;

[0029] Figure 4 This is an enlarged schematic diagram of the bottom grease unloading port position of the utility model;

[0030] Figure 5 It is an enlarged schematic diagram of the position of the lower edge of the wing plate of the mine car and the outer contour surface of the supporting wheel of the utility model.

[0031] Figure numerals: 1. bolt; 2. washer; 3. baffle; 4. key; 5. transparent cover; 6. gasket; 7. double-skeleton lip oil seal; 8. bearing; 9. end cover; 10. supporting roller shaft; 11. supporting roller seat; 12. grease plug; 13. supporting roller. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] Reference Figure 1 , 2 , 3 and 5, the supporting wheel mechanism of the bottom-dumping mine car unloading station includes a supporting wheel seat 11 (whose position is fixed), a supporting wheel 13, a supporting wheel shaft 10, a bearing 8, an end cover 9 and a transparent cover 5;

[0037] Among them, the supporting roller 13 is horizontally installed on the supporting roller shaft 10, and the torque is transmitted through the key 4, and the axial fixation is performed by the baffle 3 and the bolt 1; the supporting roller shaft 10 is rotatably supported by a pair of bearings 8; the bearings 8 are installed face to face or back to back; the end cover 9 and the transparent cover 5 are connected and installed on the inner hole of the supporting roller seat 11 by bolts 1, and the bearings 8 are axially fixed by the stoppers of the end cover 9 and the transparent cover 5, and the axial clearance is adjusted by a copper or aluminum gasket 6.

[0038] The large end and the small end of the outer contour surface of the supporting wheel 13 are inclined at an angle of 10°-15° to the horizontal direction, and the inclination angle thereof matches the inclination angle of the lower edge of the wing plate of the mine car. The cross section of the outer contour surface of the supporting wheel 13 is in an arc shape, and a rim is provided at the large end of the supporting wheel 13. This structure can effectively prevent the transparent cover 5 from scratching or even colliding with the wing plate of the mine car, thereby preventing the wing plate of the mine car from damaging the transparent cover 5 and the bolts 1 on the transparent cover 5, and ensuring the normal use of the supporting wheel mechanism.

[0039] Because the outer contour surface of the supporting roller 13 in the supporting roller mechanism is inclined at a certain angle to the horizontal direction and has a rim of a certain width at the large end, and matches the inclination angle of the lower edge of the mine car wing plate, when the lower edge of the mine car wing plate contacts the outer contour surface of the supporting roller 13, a force pointing in the direction of the mine car is generated under the action of gravity, thereby preventing the mine car from deviating from the running track; at the same time, the cross-section of the outer contour surface of the supporting roller 13 is an arc, and the cross-section of the lower edge of the mine car wing plate is a straight line. Therefore, the contact type between the outer contour surface of the supporting roller 13 and the lower edge of the mine car wing plate is point contact, thereby preventing the secondary friction caused by the linear velocity difference of the outer contour surface of the supporting roller 13, thereby improving the service life of the supporting roller mechanism and ensuring the normal unloading of the mine car.

[0040] Furthermore, the axial clearance is adjusted by copper or aluminum gaskets 6 at the contact surfaces between the two ends of the roller seat 11 and the end cover 9 and the transparent cover 5, which not only ensures the normal use of the bearing 8, but also prevents the bearing 8 from expanding and getting stuck due to the increase in temperature during operation, thereby ensuring the normal use of the roller mechanism.

[0041] Reference Figure 4 The top of the supporting roller seat 11 is provided with a grease injection hole, and the oblique lower side thereof is provided with a grease removal hole for replenishing and replacing the grease.

[0042] Preferably, the bearing 8 is lubricated with grease, and the transparent cover 5 and the end cover 9 are sealed with a lip oil seal and a gasket 6, so that the transparent cover 5 can be hidden behind the supporting wheel 13 to prevent the transparent cover 5 from being scratched by the mine car compartment.

[0043] The present embodiment also relates to an unloading station using the above-mentioned tugboat mechanism, which comprises an unloading curved track, a supporting wheel 13, a supporting wheel beam, and a pushing device, wherein the supporting wheel mechanisms are arranged in pairs on both sides of the unloading curved track; the unloading station is divided into a heavy-load section and a light-load section; the wing plate of the mine car entering the unloading station contacts the outer contour surface of the supporting wheel 13 of the supporting wheel mechanisms on both sides, and the supporting wheel mechanisms on both sides of the unloading curved track have different arrangement densities in the heavy-load section and the light-load section.

[0044] The pair of supporting wheels 13 with inward tilt angles installed on both sides of the unloading station can effectively prevent the mine car from deflecting. The higher density of the heavy-load section of the unloading station can evenly disperse the bearing force of each supporting wheel mechanism, ensure the safe operation of the supporting wheel mechanism, and ensure the normal unloading of the mine car, while the lower density of the light-load section can save the corresponding manufacturing cost within a safe range.

[0045] In this embodiment, the fixing parts are all bolts 1, and threaded holes are provided on the outer end of the supporting roller shaft 10, the end cover 9 and the transparent cover 5, both sides of the supporting roller seat 11, and the grease injection port and the grease removal port. The outer end of the supporting roller shaft 10 is locked by three threaded bolts 1, which can effectively prevent the bolts 1 from falling off automatically, and finally realize the fixed locking of the supporting roller 13 and the baffle 3.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. The supporting wheel mechanism of the bottom-dumping mine car unloading station includes a supporting wheel, a supporting wheel seat, a supporting wheel shaft, a bearing, an end cover and a transparent cover, and is characterized in that: The supporting wheel is horizontally mounted on the supporting wheel shaft, and the supporting wheel shaft is rotatably supported by a pair of bearings and placed in the tugboat seat; the bearings are mounted face to face or back to back; The end cover and the transparent cover are respectively mounted on both sides of the tugboat seat; The supporting wheel is installed on one side of the supporting wheel seat.

2. The supporting wheel mechanism according to claim 1, characterized in that: The supporting wheel is of a conical structure, and the outer contour surface of the supporting wheel is an arc surface, and a rim is arranged at the large end of the supporting wheel.

3. The supporting wheel mechanism according to claim 1, characterized in that: The end cover is fixed and locked on the supporting wheel seat by bolts, and a pair of top screw holes are arranged on the end cover.

4. The supporting wheel mechanism according to claim 1, characterized in that: The top of the supporting wheel seat is provided with a grease injection hole, and the oblique lower side thereof is provided with a grease removal hole.

5. The supporting wheel mechanism according to claim 1, characterized in that: The bearing is lubricated by grease, and the through cover and the end cover are sealed by lip oil seals and gaskets.

6. An unloading station equipped with a supporting wheel mechanism according to any one of claims 1 to 5, characterized in that: The unloading station includes an unloading curved track, a supporting wheel, a supporting wheel beam, and a pushing device, and the supporting wheel mechanism is arranged in pairs on both sides of the unloading curved track; The unloading station is divided into a heavy-load section and a light-load section; the wing plates of the mine car entering the unloading station are in contact with the outer contour surfaces of the supporting wheels of the supporting wheel mechanisms on both sides.

7. The unloading station according to claim 6, characterized in that The supporting wheel mechanisms on both sides of the unloading curved track have different arrangement densities in the heavy-load section and the light-load section.

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