Inclined plane horizontal guide wheel

Abstract

The utility model provides an inclined plane horizontal guide wheel which is used for guiding and moving on a track of a gantry crane and comprises a guide wheel and a fixing assembly, a through hole matched with a bearing is formed in the middle of the guide wheel, and the lower end face of the guide wheel is concaved upwards and inwards in the direction of the vertical axis of the guide wheel to form a first step part. The outer side face of the guide wheel is inclined outwards in the direction deviating from the vertical axis of the guide wheel to form an inclined face, the inclined face and the vertical axis of the rail form an inclined angle, and the inclined angle is matched with an included angle formed between the side face of the guide rail and the vertical axis of the rail. The guide wheel can be prevented from being in linear contact with the two sides of the track, the stress of the guide wheel is improved, the service life of the guide wheel is prolonged, and meanwhile disassembly and assembly are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a crane technical field, concretely relates to a slope horizontal guide wheel. BACKGROUND

[0002] The gantry crane is a kind of bridge type crane, which is horizontally arranged on two legs to form a portal shape, mainly used for handling and installation operations in open stockyard, dock, power station, port and railway freight station etc.The two legs of the gantry crane are horizontally moved through the track arranged on the deck of the dock, so as to achieve the purpose of lifting and handling goods.In order to keep the gantry crane balanced during horizontal movement, a horizontal guide wheel is arranged at the bottom of the gantry crane, but the horizontal guide wheel in the prior art can only be applied to the track with vertical planes on both sides, but with different requirements of actual operation on site, the two sides of the track installed on the deck of the dock are not vertical planes arranged in parallel, but inclined planes with an angle to the vertical plane, so if the horizontal guide wheel is continued to be used, the horizontal guide wheel cannot completely match the inclined plane of the guide rail to form surface contact, but forms line contact with the track, so that the horizontal guide wheel is concentratedly stressed, the structure of the horizontal guide wheel is easily damaged, the horizontal guide wheel is scrapped, and the horizontal guide wheel is inconvenient to disassemble and assemble. SUMMARY

[0003] The utility model discloses a slope horizontal guide wheel, which can avoid line contact with the two sides of the track, thereby improving the stress of the guide wheel, prolonging the service life of the guide wheel, and facilitating disassembly and assembly.

[0004] To achieve the above-mentioned purpose, a slope horizontal guide wheel is used for guiding and moving on the track of the gantry crane, comprising a guide wheel and a fixing assembly, the middle part of the guide wheel is provided with a through hole matched with a bearing, the lower end surface of the guide wheel is recessed upwards and inwards along the direction of the vertical axis of the guide wheel to form a step part one, the outer side surface of the guide wheel is inclined outwardly away from the direction of the vertical axis of the guide wheel to form an inclined plane, the inclined plane forms an inclined angle with the vertical axis of the track, the inclined angle is matched with the included angle between the side surface of the guide rail and the vertical axis of the track, and the fixing assembly is installed on the upper end surface and the step part one of the guide wheel through locking pieces.

[0005] The above setting, by the upper end surface of the guide wheel and the step part one upper set locking piece, Fang Bai guide wheel in the guide wheel axial direction on the limit and fixed, ensure the reliability of the connection, in the guide wheel sleeve connection in the bearing after, can through the fixed assembly to the guide wheel limiting, limit the guide wheel in the guide wheel vertical axis direction on the move, make the guide wheel can only rotate around the bearing, and through the setting of the outer side of the guide wheel forms an inclined surface, and make the inclined surface and the guide wheel vertical axis between the tilt angle, at the same time make the tilt angle and the guide rail side and the track vertical axis between the matching angle, so in the gantry crane horizontal movement process, can make the guide wheel of the inclined surface and the side of the guide rail realize the surface contact, make the gantry crane horizontal movement process produces the load acting on the inclined surface of the guide wheel, and then transmitted to the side of the guide rail, effectively reduce the stress of the guide wheel, prolong the service life of the guide wheel, at the same time, due to the inclined surface and the track vertical axis forms an inclined angle, in the process of disassembly, facilitate the guide wheel along the inclined surface disassembly and not damage the outer side of the guide wheel.

[0006] Further, the step part one is provided with two or more than two circumferentially distributed installation holes matched with the locking piece, and the installation hole penetrates the guide wheel to the upper end surface of the guide wheel along the vertical axis direction of the guide wheel.

[0007] The above setting is convenient for the fixed assembly to be installed on the step part one and the upper end surface of the guide wheel through the installation hole, so as to limit the guide wheel between the fixed assembly, so that the guide wheel can rotate around the bearing.

[0008] Further, the fixed assembly comprises an upper end cover and a lower end cover, the middle part of the upper end cover is provided with a through hole matched with the guide wheel shaft, the lower end surface of the upper end cover is recessed upward and inward along the vertical axis of the upper end cover to form a step part two and a step part three, and the lower end surface of the upper end cover abuts against the upper end surface of the bearing.

[0009] The above setting is convenient for the upper end cover to be installed on the upper end of the bearing through the through hole penetrating the guide wheel shaft.

[0010] Further, the diameter of the step part two is greater than that of the step part three, the step part two and the step part three are connected by a vertical plane, the two ends of the vertical plane are vertically arranged with the step part two and the step part three respectively, the diameter of the step part three is greater than that of the through hole in the middle part of the upper end cover, a gap is formed between the step part two and the upper end surface of the bearing, a containing cavity is formed between the step part three, the vertical plane and the guide wheel shaft, and a sealing element is arranged in the containing cavity.

[0011] The above setting is convenient for adjusting the position of the sealing element in the containing cavity one through the gap formed between the step part two and the upper end surface of the bearing, thereby preventing the lubricating oil from leaking out of the upper end of the upper end cover.

[0012] Further, the upper end face of the lower end cover is recessed downward and inward along the vertical axis of the lower end cover to form a receiving cavity two, and the upper end face of the lower end cover abuts against the lower end face of the bearing.

[0013] The above arrangement facilitates the receiving cavity two to accommodate the bolt fixed on the bearing.

[0014] Further, the outer side face of the lower end cover extends outward along the horizontal direction to form a protrusion one, the protrusion one abuts against the step part one, the outer side face of the upper end cover extends outward along the horizontal direction to form a protrusion two, the protrusion two abuts against the upper end face of the guide wheel, and the protrusion one and the protrusion two are both provided with mounting holes matched with the locking pieces.

[0015] The above arrangement facilitates the guide wheel to be limited from moving in the vertical direction after the guide wheel is sleeved on the bearing through the protrusion one and the protrusion two. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a top view of the utility model.

[0018] Figure 3 It is Figure 2 A-A section view.

[0019] Figure 4 It is an explosion schematic diagram of the utility model.

[0020] Figure 5 It is a schematic diagram of the guide wheel attached to the track in the utility model. DETAILED DESCRIPTION

[0021] The utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0022] As Figures 1 to 5 shown, a bevel horizontal guide wheel is used for guiding and moving on the track of a gantry crane, comprising a guide wheel 1 and a fixing assembly, the middle part of the guide wheel 1 is provided with a through hole (not marked in the drawing) matched with a bearing 8, the lower end face 11 of the guide wheel is recessed upward and inward along the direction of the vertical axis of the guide wheel to form a step part one 12, the step part one 12 is provided with two or more mounting holes (not marked in the drawing) matched with locking pieces and arranged in a circular manner, the mounting holes penetrate through the guide wheel 1 to the upper end face 13 of the guide wheel along the direction of the vertical axis of the guide wheel, so that the fixing assembly is installed in the step part one 12 of the guide wheel 1 and the upper end face 13 of the guide wheel 1 through the mounting holes, thereby limiting the guide wheel 1 between the fixing assembly, so that the guide wheel 1 can rotate around the bearing 8, and in the embodiment, the locking pieces are a bolt three and a nut matched with the bolt three.

[0023] As shown in Figure 3 and 5 The outer side of the guide wheel 1 is inclined outwardly to form an inclined surface 14, which forms an inclined angle a with the vertical axis of the rail, and the inclined angle a matches the included angle b between the rail side surface 15 and the vertical axis of the rail. The fixing assembly is installed on the upper end surface 13 and the step part one 12 of the guide wheel through the locking piece, and the fixing assembly includes an upper end cover 4 and a lower end cover 3. The middle part of the upper end cover 4 is provided with a through hole matched with the guide wheel shaft 2. The lower end surface 41 of the upper end cover is recessed upwardly and inwardly along the vertical axis of the upper end cover to form a step part two 42 and a step part three 43. The lower end surface 41 of the upper end cover abuts against the upper end surface 81 of the bearing. In this embodiment, the diameter of the step part two 42 is larger than that of the step part three 43. The step part two 42 and the step part three 43 are connected by a vertical plane 44. The two ends of the vertical plane 44 are vertically arranged with the step part two 42 and the step part three 43, respectively. The diameter of the step part three 43 is larger than that of the middle through hole of the upper end cover 4. The step part two 42 and the upper end surface 81 of the bearing form a gap. The step part three 43, the vertical plane 44 and the guide wheel shaft 2 form a containing cavity 45. The containing cavity one 45 is provided with a sealing piece 7. Thus, after the upper end cover 4 is sleeved on the guide wheel shaft 2, the position of the sealing piece 7 in the containing cavity one 45 can be adjusted through the gap between the step part two 42 and the upper end surface 81 of the bearing, thereby preventing the lubricating oil from leaking out of the upper end of the upper end cover 4.

[0024] As shown in Figure 3 and 5 The upper end surface 31 of the lower end cover is recessed downwardly and inwardly along the vertical axis of the lower end cover 3 to form a containing cavity two 32. The upper end surface 31 of the lower end cover abuts against the lower end surface 82 of the bearing. The outer side of the lower end cover 3 extends outwardly along the horizontal direction to form a convex part one 33, which abuts against the step part one 12. The outer side of the upper end cover 4 extends outwardly along the horizontal direction to form a convex part two 46, which abuts against the upper end surface 13 of the guide wheel. The convex part one 33 and the convex part two 46 are both provided with mounting holes matched with the locking piece. Thus, after the guide wheel 1 is sleeved on the bearing 8, the movement of the guide wheel 1 in the vertical direction can be limited through the convex part one 33 and the convex part two 46.

[0025] In this embodiment, the lower end of the guide wheel shaft 2 is provided with a baffle 5, which is provided with a countersunk hole matched with the bolt one 9 (not marked in the figure). After the bearing 8 is sleeved on the guide wheel shaft 2, the baffle 5 is fixed on the lower end of the guide wheel shaft 2 through the bolt one 9, so as to fix the bearing 8 on the lower end of the guide wheel shaft 2. The upper end of the guide wheel shaft 2 is fixed on the bottom of the gantry crane through the bolt two 90 passing through the flange plate 6.

[0026] The installation method of the inclined surface horizontal guide wheel is as follows: the upper end cover 4 is sleeved on the guide wheel shaft 2, the convex part one 33 of the upper end cover 4 is supported through the supporting column, then the bearing is sleeved on the guide wheel shaft 2, the baffle 5 is fixed on the lower end part of the guide wheel shaft 2 through the bolt one, the supporting column is removed, the guide wheel is sleeved on the bearing, the lower end cover is abutted on the step part one 33, the guide wheel is limited between the upper end cover and the lower end cover through the locking piece passing through the through hole, and the installation is completed.

[0027] Working principle: after the guide wheel 1 is sleeved on the bearing 2, the guide wheel 1 can be limited through the fixing assembly, the movement of the guide wheel 1 in the vertical axis direction of the guide wheel is limited, the guide wheel 1 can only rotate around the bearing 2, the outer side of the guide wheel 1 is provided with an inclined surface, the inclined surface and the vertical axis of the guide wheel 1 form an inclined angle, and the inclined angle is matched with the included angle between the guide rail side and the vertical axis of the track, so that the inclined surface of the guide wheel 1 and the side of the guide rail realize surface contact during the horizontal movement of the gantry crane, the load generated during the horizontal movement of the gantry crane acts on the inclined surface of the guide wheel 1, and then is transmitted to the side of the guide rail, the stress of the guide wheel 1 is effectively reduced, the service life of the guide wheel is prolonged, and the outer side of the guide wheel is not damaged during disassembly and assembly because the inclined surface and the vertical axis of the track form an inclined angle.

Claims

1. A bevelled horizontal guide wheel for guiding movement on a track of a gantry crane, characterized in that: The guide wheel is provided with a through hole matched with a bearing in the middle part, the lower end surface of the guide wheel is recessed inward along the vertical axis of the guide wheel to form a step part one, the outer side surface of the guide wheel is inclined outward away from the vertical axis of the guide wheel to form an inclined surface, the inclined surface forms an inclined angle with the vertical axis of the track, the inclined angle is matched with the included angle between the side surface of the guide rail and the vertical axis of the track, and the fixing assembly is installed on the upper end surface and the step part one of the guide wheel through locking pieces.

2. A bevelled horizontal guide wheel according to claim 1, characterised in that: The step part one is provided with two or more mounting holes which are circumferentially distributed and matched with the locking pieces, and the mounting holes penetrate the guide wheel along the vertical axis of the guide wheel to the upper end surface of the guide wheel.

3. A bevelled horizontal guide wheel according to claim 1, characterised in that: The fixing assembly includes an upper end cover and a lower end cover, the middle part of the upper end cover is provided with a through hole matched with the shaft of the guide wheel, the lower end surface of the upper end cover is recessed inward along the vertical axis of the upper end cover to form a step part two and a step part three, and the lower end surface of the upper end cover abuts against the upper end surface of the bearing.

4. A bevelled horizontal guide wheel according to claim 3, characterised in that: The diameter of the step part two is greater than that of the step part three, the step part two and the step part three are connected through a vertical plane, the two ends of the vertical plane are vertically arranged with the step part two and the step part three respectively, the diameter of the step part three is greater than that of the through hole in the middle part of the upper end cover, a gap is formed between the step part two and the upper end surface of the bearing, and a containing cavity is formed between the step part three, the vertical plane and the shaft of the guide wheel, and a sealing piece is arranged in the containing cavity.

5. A bevelled horizontal guide wheel according to claim 3, characterised in that: The upper end surface of the lower end cover is recessed downward along the vertical axis of the lower end cover to form a containing cavity two, and the upper end surface of the lower end cover abuts against the lower end surface of the bearing.

6. A bevelled horizontal guide wheel according to claim 5, characterised in that: The outer side surface of the lower end cover extends outward along the horizontal direction to form a convex part one which abuts against the step part one, the outer side surface of the upper end cover extends outward along the horizontal direction to form a convex part two which abuts against the upper end surface of the guide wheel, and the convex part one and the convex part two are both provided with mounting holes matched with the locking pieces.

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