Convenient dismounting device for stair wheel of escalator

Abstract

The utility model relates to the technical field of elevators, in particular to a convenient and fast dismounting device for escalator step wheels, which comprises a clamping piece, a fixing nut located on the clamping piece and an abutting rod used for abutting against a bearing, a matching hole matched with the fixing nut is formed in the top of the clamping piece in a penetrating manner, and the fixing nut is in threaded connection with the abutting rod. A holding groove for holding the step wheel is formed in the clamping piece, and an open groove which is in embedded fit with the step shaft pin is formed in one end, far away from the matching hole, of the clamping piece, during actual operation, the step wheel is stably placed in the holding groove by utilizing the design of the clamping piece, and the step wheel is stably placed in the holding groove by utilizing the matching of the fixing nut and the abutting rod; when the step wheel is detached, the abutting rod is rotated to descend to abut against the bearing along with the thread, the step wheel and the bearing are opposite in stress direction, so that the step wheel is separated from the bearing, the detaching process is simpler and more convenient through the operation, and meanwhile the step wheel cannot be damaged.

Description

Technical Field

[0001] This application relates to the technical field of elevators, and in particular to a convenient disassembly device for escalator steps wheels. Background Art

[0002] At present, the steps wheels of escalators are installed on the step pins of elevator steps through bearings, and the bearings and the step pins form an interference fit. After long-term use, the steps wheels will be worn and damaged, so they need to be regularly inspected and replaced. The traditional method of disassembling the steps wheels is to knock the steps wheels off with a hammer, but this disassembly operation is likely to damage the outer edge of the steps wheels, and at the same time, it may accidentally damage the step pins, resulting in the inability to replace the steps wheels, and there is room for improvement. Utility Model Content

[0003] In order to reduce damage to the steps wheels during disassembly, this application provides a convenient disassembly device for escalator steps wheels.

[0004] A convenient disassembly device for escalator steps wheels provided by this application adopts the following technical solutions:

[0005] A convenient disassembly device for escalator steps wheels is characterized in that it includes a clamping member, a fixing nut located on the clamping member, and a butting rod for butting against the bearing. A mating hole coaxial with the fixing nut is penetrated through the top of the clamping member. The fixing nut is threadedly connected with the butting rod. A receiving groove for placing the steps wheel is formed inside the clamping member. An opening groove for forming an embedding fit with the step pin is formed at one end of the clamping member far from the mating hole. A butting plate for forming a butting fit with the steps wheel is arranged on one side of the clamping member far from the mating hole.

[0006] By adopting the above technical solutions, the design of the clamping member enables the steps wheel to be stably placed in the receiving groove during the disassembly process. With the cooperation of the fixing nut and the butting rod, by rotating the butting rod, it descends along the thread. When the butting rod abuts against the bearing and continues to rotate the butting rod, since the force directions of the steps wheel and the bearing are opposite, the separation of the steps wheel from the bearing is realized. Through this operation, the disassembly process is made more convenient, and at the same time, the steps wheel will not be damaged.

[0007] Preferably, a guiding port for guiding the step pin into the opening groove is arranged at one end of the opening groove perpendicular to the axis direction of the mating hole.

[0008] By adopting the above technical solutions, with the arrangement of the guiding port, the step pin can be conveniently and accurately inserted into the opening groove.

[0009] Preferably, a semi-circular groove communicating with the opening groove is arranged at one end of the opening groove perpendicular to the axis of the mating hole and far from the guiding port.

[0010] By adopting the above technical solution, with the setting of the semi-circular groove, not only the sliding position of the step shaft pin is limited, but also the step wheel can be kept stable during the disassembly process, preventing the damage of the step wheel caused by unstable force.

[0011] Preferably, the center of the semi-circular groove is set on the axis of the fixing nut.

[0012] By adopting the above technical solution, setting the center of the semi-circular groove on the axis of the fixing nut enables the abutting rod to accurately abut against the bearing during disassembly, thereby ensuring that the abutting rod completely exerts the pressure on the bearing.

[0013] Preferably, a blocking plate for blocking the step wheel is vertically arranged at one end of the receiving groove perpendicular to the axis direction of the mating hole and away from the guiding port, and the blocking plate is fixedly connected to the clamping member and makes the side of the receiving groove provided with the blocking plate in a semi-open state.

[0014] By adopting the above technical solution, with the setting of the blocking plate, it is convenient for the staff to hold the blocking plate by hand during the process of placing the step wheel into the receiving groove, and at the same time prevent the step wheel from pinching the staff's hand during the disassembly process.

[0015] Preferably, a rotating member for facilitating the rotation of the abutting rod is arranged at one end of the abutting rod away from the fixing nut.

[0016] By adopting the above technical solution, with the setting of the rotating member, it is convenient for the staff to perform the rotation operation on the abutting rod, improving the work efficiency.

[0017] Preferably, the rotating member is set as an L-shaped side bar, and the L-shaped side bar is fixedly connected to one end of the abutting rod away from the fixing nut.

[0018] By adopting the above technical solution, with the setting of the L-shaped side bar, a larger moment is provided, making it more labor-saving for the staff to rotate the abutting rod.

[0019] Preferably, the rotating member is set as a handwheel, and the handwheel is fixedly connected to one end of the abutting rod away from the fixing nut.

[0020] By adopting the above technical solution, with the setting of the handwheel, a larger operating area is provided, making it easier and more stable for the staff to rotate the abutting rod.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The design of the clamping member enables the step wheel to be stably placed in the receiving groove during the disassembly process. By using the cooperation of the fixing nut and the abutting rod, that is, by rotating to lower the abutting rod. When the abutting rod abuts against the bearing and continues to rotate the abutting rod, since the force directions of the step wheel and the bearing are opposite, the separation of the step wheel and the bearing is achieved. This operation makes the disassembly process more convenient and will not damage the step wheel;

[0023] 2. The design of the guiding port enables the step axle pin to enter the opening groove more easily, especially in the case of limited space or the need for quick operation. This design reduces the operation difficulty and improves the disassembly efficiency;

[0024] 3. Through the setting of the rotating member, the rotation operation of the abutting rod by the staff is more convenient and flexible, improving the work efficiency. Brief Description of the Drawings

[0025] Figure 1 is an axonometric schematic diagram mainly showing the overall structure in Embodiment 1 of the present application;

[0026] Figure 2 is a structural schematic diagram mainly showing the clamping member in Embodiment 1 of the present application;

[0027] Figure 3 is a structural schematic diagram mainly showing the cooperation between the handwheel and the abutting rod in Embodiment 2 of the present application.

[0028] Reference Signs: 1, clamping member; 11, top plate; 111, mating hole; 12, receiving groove; 13, abutting plate; 14, opening groove; 141, semi-circular groove; 15, guiding port; 16, blocking plate; 2, fixing nut; 3, abutting rod; 4, rotating member; 41, L-shaped side bar; 42, handwheel. Detailed Description of the Embodiment

[0029] The following will Figure 1 - will Figure 3 further describe the present application in detail with reference to the

[0030] Embodiment 1 of the present application discloses a convenient disassembly device for an escalator step wheel.

[0031] Embodiment 1:

[0032] Referring to Figure 1 and Figure 2 , a convenient disassembly device for an escalator step wheel includes a clamping member 1 for clamping the step wheel, a fixing nut 2 located on the clamping member 1, and an abutting rod 3 for abutting against the bearing. The clamping member 1 includes a top plate 11, and a mating hole 111 coaxially arranged with the fixing nut 2 is penetrated through the center of the top plate 11. The fixing nut 2 is welded directly above the mating hole 111, and the fixing nut 2 is threadedly connected to the abutting rod 3.

[0033] Refer to Figure 2 Figure 2 , the clamping member 1 is made of sheet metal, and the interior of the clamping member 1 is hollowed out. The hollowed-out position is set as the receiving groove 12 for placing the step wheel. The bottom of the clamping member 1 is symmetrically provided with abutting plates 13 bent into an L shape by sheet metal parts. The two abutting plates 13 form an abutting fit with the rim of the step wheel. An opening groove 14 communicating with the receiving groove 12 is formed between the two abutting plates 13. The opening groove 14 forms an embedded sliding fit with the step axle pin; one end of the opening groove 14 perpendicular to the axis direction of the mating hole 111 is provided with a guiding port 15 for guiding the step axle pin into the opening groove 14. The design of the guiding port 15 enables the step axle pin to enter the opening groove 14 conveniently and accurately, improving the disassembly efficiency.

[0034] Refer to Figure 1 and Figure 2 Figure 2 , the step axle pin enters the opening groove 14 through the guiding port 15. At the same time, the step wheel enters the receiving groove 12 along with the step axle pin. By rotating the abutting rod 3 so that it descends along with the thread, when the abutting rod 3 abuts against the bearing of the step wheel in the receiving groove and continues to rotate the abutting rod 3, since the acting direction of the clamping member 1 on the step wheel is opposite to the acting direction of the abutting rod 3 on the bearing, the separation of the step wheel and the bearing is achieved.

[0035] Refer to Figure 2 Figure 2 , a blocking plate 16 for blocking the step wheel is vertically provided at one end of the receiving groove 12 perpendicular to the axis direction of the mating hole 111 and away from the guiding port 15. The left and right ends of the blocking plate 16 are respectively welded to the side surface of the clamping member 1, and the upper and lower ends of the blocking plate 16 are respectively welded and fixed to the top plate 11 and the abutting plate 13, so that one side of the receiving groove 12 provided with the blocking plate 16 is in a semi-open state, facilitating the staff to hold the blocking plate 16 by hand during the process of placing the step wheel into the receiving groove 12, and at the same time preventing the step wheel from pinching the hand during the disassembly process.

[0036] Refer to Figure 2 Figure 2 , a semi-circular groove 141 communicating with the opening groove 14 is formed at one end of the opening groove 14 perpendicular to the axis direction of the mating hole 111 and away from the guiding port 15. The opening direction of the semi-circular groove 141 is consistent with that of the guiding port 15, and the center of the semi-circular groove 141 is set on the axis of the fixing nut 2, so that the abutting rod 3 accurately abuts against the bearing during disassembly, ensuring that the abutting rod 3 completely applies the pressure on the bearing. This not only limits the sliding position of the step axle pin but also improves the stability of the step wheel during the disassembly process, preventing damage to the step wheel due to unstable force.

[0037] Refer to Figure 1, a rotating member 4 is provided at one end of the abutting rod 3 away from the fixing nut 2, which facilitates the staff to rotate the abutting rod 3, improves work efficiency. The rotating member 4 is set as an L-shaped side bar 41, and the L-shaped side bar 41 is fixedly welded to the end of the abutting rod 3 away from the fixing nut 2, providing a large torque so that it is more labor-saving for the staff to rotate the abutting rod 3.

[0038] The implementation principle of the embodiment of the present application is as follows: when disassembling the escalator step wheel with this device, the staff places the step wheel in the receiving groove 12 of this device. At the same time, the step axle pin cooperating with the bearing enters the opening groove 14 through the guiding port 15 and slides to the position of the semi-circular groove 141. Then the staff manually pushes the L-shaped side bar 41 to rotate, so that the abutting rod 3 connected to the L-shaped side bar 41 descends to abut against the bearing. After that, continue to rotate the L-shaped side bar 41. Since the acting force direction of the clamping member 1 on the step wheel is opposite to the acting force direction of the abutting rod 3 on the bearing, the separation of the step wheel and the bearing is realized, making the disassembly process more convenient and not damaging the step wheel.

[0039] Embodiment Two:

[0040] The difference between Embodiment Two and Embodiment One is that:

[0041] Referring to Figure 3 , the rotating member 4 is set as a handwheel 42, the handwheel 42 is fixedly welded to the end of the abutting rod 3 away from the fixing nut 2, and a hand rod 421 convenient for the operator to operate is provided on the handwheel 42, and directly rotating the hand rod 421 makes it easier and more stable for the staff to rotate the abutting rod 3.

[0042] The above are all the preferred embodiments of the present application. Without restricting the protection scope of the present application accordingly, therefore: all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A convenient disassembly device for an escalator step wheel, characterized in that: The invention comprises a clamping member (1), a fixing nut (2) located on the clamping member (1) and an abutting rod (3) for abutting against a bearing. A matching hole (111) coaxially arranged with the fixing nut (2) is formed through the top of the clamping member (1). The fixing nut (2) is threadedly connected to the abutting rod (3). A receiving groove (12) for accommodating a step wheel is formed inside the clamping member (1). An end of the clamping member (1) away from the matching hole (111) is provided with an open groove (14) for forming an embedded fit with a step shaft pin. A side of the clamping member (1) away from the matching hole (111) is provided with an abutting plate (13) for forming an abutting fit with the step wheel.

2. The convenient disassembly device for an escalator step wheel according to claim 1, characterized in that: One end of the opening groove (14) perpendicular to the axial direction of the matching hole (111) is provided with a guide opening (15) for guiding the step shaft pin to enter the opening groove (14).

3. The convenient disassembly device for escalator step wheels according to claim 2, characterized in that: The opening groove (14) is perpendicular to the axial direction of the matching hole (111) and is provided with a semicircular groove (141) at one end away from the guide opening (15) and connected to the opening groove (14).

4. The convenient disassembly device for escalator step wheels according to claim 3, characterized in that: The center of the semicircular groove (141) is arranged on the axis of the fixing nut (2).

5. The convenient disassembly device for escalator step wheels according to claim 2, characterized in that: A blocking plate (16) for blocking the step wheel is vertically arranged at one end of the receiving groove (12) which is perpendicular to the axial direction of the matching hole (111) and away from the guide opening (15); the blocking plate (16) is fixedly connected to the clamping member (1) and enables the receiving groove (12) to be in a semi-open state.

6. The convenient disassembly device for escalator step wheels according to claim 1, characterized in that: One end of the abutment rod (3) away from the fixing nut (2) is provided with a rotating member (4) for facilitating the rotation of the abutment rod (3).

7. The convenient disassembly device for escalator step wheels according to claim 6, characterized in that: The rotating member (4) is configured as an L-shaped side bar (41), and the L-shaped side bar (41) is fixedly connected to an end of the abutment rod (3) away from the fixing nut (2).

8. The convenient disassembly device for escalator step wheels according to claim 6, characterized in that: The rotating member (4) is configured as a hand wheel (42), and the hand wheel (42) is fixedly connected to an end of the abutment rod (3) away from the fixing nut (2).

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