Elevator car roof wheel fixing device

Abstract

The utility model discloses an elevator car roof wheel fixing device which comprises two upper beams and four reinforcing plates, one upper beam fixes two reinforcing plates through bolts, and two opposite reinforcing plates can fixedly install one car roof wheel. The reinforcing plate comprises a bearing block, a side face fixing plate and a top face fixing plate which are fixedly connected in sequence, the bearing block and the side face fixing plate are fixed to a side face plate of the upper beam, and the top face fixing plate is fixed to a top face plate of the upper beam; the bearing blocks are provided with bearing grooves, and the two shaft heads of the car roof wheel are arranged in the two opposite bearing grooves correspondingly. The bearing block is further provided with a position adjusting bolt used for adjusting the position of the shaft head. The car roof wheel is fixed on the reinforcing plate, and the reinforcing plate is fixed on the inner side surface of the upper beam, so that the car roof wheel is indirectly fixed on the upper beam instead of being directly fixed on the upper beam, the upper beam needs to be provided with extremely few holes, and a shaft hole with the same size as a car roof wheel shaft does not need to be formed, so that the strength of the upper beam is greatly improved; and the upper beam fracture risk is reduced.

Description

Technical Field

[0001] This utility model relates to the installation and fixing of elevator car top wheels, specifically an elevator car top wheel fixing device. Background Technology

[0002] Currently, elevator car top wheels are generally installed on the upper beam of the car top. This requires opening a shaft hole in the upper beam to install the car top wheel axle. However, due to size limitations, the height of the upper beam is not very high. Opening a shaft hole on a relatively low surface will reduce the strength of the upper beam, and there is a risk of bending or even breakage after long-term use. Utility Model Content

[0003] To address the shortcomings of the prior art, this invention provides an elevator car top wheel fixing device. This invention fixes the car top wheel to a reinforcing plate, which in turn is fixed to the inner side of the upper beam. Thus, the car top wheel is indirectly fixed to the upper beam, rather than directly. Consequently, the upper beam requires very few holes and does not need to have a shaft hole the same size as the car top wheel axle. This significantly improves the strength of the upper beam and reduces the risk of upper beam breakage.

[0004] To achieve the above technical objectives, this utility model adopts the following technical solution: an elevator car top wheel fixing device, comprising two upper beams and four reinforcing plates, wherein one upper beam is fixed to two reinforcing plates by bolts, and two opposing reinforcing plates can fixally install one car top wheel; each reinforcing plate includes a bearing block, a side fixing plate, and a top fixing plate fixedly connected in sequence, wherein the bearing block and the side fixing plate are both fixed to the side panel of the upper beam, and the top fixing plate is fixed to the top panel of the upper beam; the bearing block is provided with a bearing groove, and the two axle heads of the car top wheel are respectively located in the two opposing bearing grooves; the bearing block is also provided with adjusting bolts for adjusting the position of the axle heads.

[0005] The upper beam includes a side panel and a top panel, the top panel being an outwardly folded edge of the side panel; the side fixing plate and the top fixing plate are vertically connected; the side panel has a first hole and a second hole, the bearing block has a third hole, the third hole being bolted to the first hole, the side fixing plate has a fourth hole, the fourth hole being bolted to the second hole, the top panel has a fifth hole, and the top fixing plate has a sixth hole, the sixth hole being bolted to the fifth hole.

[0006] The car top wheel is provided with a round shaft, and both ends of the round shaft are provided with shaft heads. The shaft heads are cubic structures, and the bearing groove is a cubic structure. The vertical height of the bearing groove is the same as the vertical height of the shaft head. The horizontal length of the bearing groove is greater than the horizontal length of the shaft head. A gap p is formed between the outer end face of the shaft head and the inner end face of the bearing groove.

[0007] The shaft head has slots on its two transverse end faces, the bearing block has threaded holes, the adjusting bolt is threaded into the threaded holes, the inner end face of the adjusting bolt is placed in the slots and abuts against the inner surface of the slots; the adjusting bolt is also fitted with a locking nut.

[0008] The size of the slot is larger than the size of the inner end face of the adjusting bolt.

[0009] In summary, this utility model achieves the following technical effects:

[0010] This utility model fixes the car top wheel to the reinforcing plate, and the reinforcing plate is fixed to the inner side of the upper beam. Thus, the car top wheel is indirectly fixed to the upper beam, rather than directly fixed to the upper beam. As a result, the upper beam needs to have very few holes, and there is no need to open a shaft hole as large as the car top wheel axle. This greatly improves the strength of the upper beam and reduces the risk of the upper beam breaking.

[0011] This invention uses a load-bearing block as a supporting force-bearing component connecting the car roof wheel axle. The side fixing plate 22 and top fixing plate 23 improve the connection tightness. The top fixing plate 23 is bent to cover the folded edge of the upper beam, preventing the load-bearing block from sagging. This invention utilizes multiple holes to connect the upper beam and the reinforcing plate; the holes are small in size, minimizing their impact on the upper beam.

[0012] This utility model can use two adjusting bolts 4 to adjust the position at both ends of the shaft respectively. For example, the left shaft head is adjusted forward and the right shaft head is adjusted backward, so that the entire car top wheel shaft is tilted to the left front and right rear. This can compensate for the dimensional errors inherent in the processing of the upper beam, car top wheel and other components, and allow the elevator pull rope to be accurately threaded in the rope groove (not shown) of the car top wheel. Attached Figure Description

[0013] Figure 1 It is an elevator car top wheel fixing device;

[0014] Figure 2 This is a schematic diagram of the upper beam;

[0015] Figure 3 This is a schematic diagram of the reinforcing plate;

[0016] Figure 4 It refers to the connection between the reinforcing plate and the car roof wheel axle;

[0017] Figure 5 yes Figure 1 Top view;

[0018] Figure 6 yes Figure 5 A schematic diagram of the A-A cross-section;

[0019] Figure 7 yes Figure 5 A schematic diagram of the C-C cross-section. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] Example:

[0027] Figure 1 It is an elevator car top wheel fixing device, including two upper beams 1 and four reinforcing plates 2. One upper beam 1 is fixed to two reinforcing plates 2 by bolts, and two opposing reinforcing plates 2 can fix a car top wheel 3.

[0028] This invention fixes the car top wheel to a reinforcing plate, which in turn is fixed to the inner side of the upper beam. Thus, the car top wheel is indirectly fixed to the upper beam, rather than directly. As a result, the upper beam requires very few holes and does not need to have a shaft hole the same size as the car top wheel axle. This significantly improves the strength of the upper beam and reduces the risk of upper beam breakage.

[0029] Figure 2 This is a schematic diagram of the beam being installed. Figure 3 This is a schematic diagram of the reinforcing plate.

[0030] The reinforcing plate 2 includes a bearing block 21, a side fixing plate 22, and a top fixing plate 23 that are fixedly connected in sequence. The bearing block 21 and the side fixing plate 22 are both fixed to the side panel 11 of the upper beam 1, and the top fixing plate 23 is fixed to the top panel 12 of the upper beam 1.

[0031] The upper beam 1 includes a side panel 11 and a top panel 12, the top panel 12 being the outward folded edge of the side panel 11; the side fixing plate 22 and the top fixing plate 23 are vertically connected; the side panel 11 has a first hole 13 and a second hole 14, the bearing block 21 has a third hole 213, the third hole 213 is connected to the first hole 13 by bolts, the side fixing plate 22 has a fourth hole 221, the fourth hole 221 is connected to the second hole 14 by bolts, the top panel 12 has a fifth hole 15, and the top fixing plate 23 has a sixth hole 231, the sixth hole 231 is connected to the fifth hole 15 by bolts.

[0032] This invention uses a load-bearing block as a supporting force-bearing component connecting the car roof wheel axle. The side fixing plate 22 and top fixing plate 23 improve the connection tightness. The top fixing plate 23 is bent to cover the folded edge of the upper beam, preventing the load-bearing block from sagging. This invention utilizes multiple holes to connect the upper beam and the reinforcing plate; the holes are small in size and have minimal impact on the upper beam.

[0033] Figure 4 It is the connection relationship between the reinforcing plate and the car top wheel axle. The bearing block 21 has a bearing groove 211. The two axle heads 32 of the car top wheel 3 are respectively located in the two opposite bearing grooves 211. The bearing block 21 is also provided with an adjusting bolt 4 for adjusting the position of the axle head 32.

[0034] This utility model can use four adjusting bolts 4 to adjust the position at both ends of the shaft. For example, the left shaft head can be adjusted forward and the right shaft head can be adjusted backward, so that the entire car top wheel shaft is tilted to the left front and right rear. This can compensate for the dimensional errors inherent in the processing of the upper beam, car top wheel and other components, and allow the elevator pull rope to be accurately threaded in the rope groove (not shown) of the car top wheel.

[0035] Figure 5 yes Figure 1 Top view, Figure 6 yes Figure 5 A schematic diagram of the A-A cross section. Figure 7 yes Figure 5 A schematic diagram of the C-C cross-section.

[0036] Specifically, the car top wheel 3 is provided with a round shaft 31, and both ends of the round shaft 31 are provided with shaft heads 32. The shaft heads 32 are cubic structures, and the bearing groove 211 is a cubic structure. The vertical height of the bearing groove 211 is the same as the vertical height of the shaft head 32, and the horizontal length of the bearing groove 211 is greater than the horizontal length of the shaft head 32. A gap p is formed between the outer end face of the shaft head 32 and the inner end face of the bearing groove 211.

[0037] The cubic structure of the axle head 32 increases the contact area between the axle head and the bearing block, thereby increasing the stress surface, reducing local pressure, and lowering the risk of bending of the upper beam. The vertical height of the axle head and the vertical height of the bearing groove 211 enhance the installation stability of the car top wheel, while the smaller lateral length of the axle head than the bearing groove 211, along with the fitting clearance p, provides sufficient space for front and rear adjustments.

[0038] The shaft head 32 has slots 312 on its two transverse end faces, the bearing block 21 has threaded holes 212, the adjusting bolt 4 is threaded into the threaded holes 212, the inner end face of the adjusting bolt 4 is placed in the slots 312 and abuts against the inner surface of the slots 312; the adjusting bolt 4 is also fitted with a locking nut 41.

[0039] The size of the slot 312 is larger than the size of the inner end face of the adjusting bolt 4.

[0040] This utility model provides a slot 312 to enhance the tightness of the connection between the shaft head and the adjusting bolts 4, preventing them from slipping off. The four adjusting bolts 4 can adjust the position of the car top wheel. Figure 6 Taking the two adjusting bolts 4 as an example, the left adjusting bolt 4 is turned to the left and the right adjusting bolt 4 is turned to the left, which can make the shaft head 32 deflect to the left.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. An elevator car top wheel fixation device, characterized by: It includes two upper beams (1) and four reinforcing plates (2). One upper beam (1) is fixed with two reinforcing plates (2) by bolts. Two opposite reinforcing plates (2) can be fixedly installed with a car top wheel (3). The reinforcing plate (2) includes a bearing block (21), a side fixing plate (22) and a top fixing plate (23) that are fixedly connected in sequence. The bearing block (21) and the side fixing plate (22) are fixed to the side panel (11) of the upper beam (1), and the top fixing plate (23) is fixed to the top panel (12) of the upper beam (1). The bearing block (21) is provided with a bearing groove (211). The two axle heads (32) of the car top wheel (3) are respectively located in the two opposite bearing grooves (211). The bearing block (21) is also provided with an adjusting bolt (4) for adjusting the position of the axle head (32).

2. An elevator car top wheel fixation device according to claim 1, characterized in that: The upper beam (1) includes a side panel (11) and a top panel (12), the top panel (12) being the outward folded edge of the side panel (11); the side fixing plate (22) and the top fixing plate (23) are vertically connected; the side panel (11) has a first hole (13) and a second hole (14), the bearing block (21) has a third hole (213), the third hole (213) is connected to the first hole (13) by bolts, the side fixing plate (22) has a fourth hole (221), the fourth hole (221) is connected to the second hole (14) by bolts, the top panel (12) has a fifth hole (15), the top fixing plate (23) has a sixth hole (231), the sixth hole (231) is connected to the fifth hole (15) by bolts.

3. An elevator hoistway top wheel fixation device according to claim 1, characterized in that: The car top wheel (3) is provided with a round shaft (31), and both ends of the round shaft (31) are provided with shaft heads (32). The shaft head (32) has a cubic structure, and the bearing groove (211) has a cubic structure. The vertical height of the bearing groove (211) is the same as the vertical height of the shaft head (32). The horizontal length of the bearing groove (211) is greater than the horizontal length of the shaft head (32). The outer end face of the shaft head (32) and the inner end face of the bearing groove (211) form a gap p.

4. An elevator hoistway top wheel fixation device according to claim 3, characterized in that: The shaft head (32) has slots (312) on its two transverse end faces, and the bearing block (21) has a threaded hole (212). The adjusting bolt (4) is threaded into the threaded hole (212), and the inner end face of the adjusting bolt (4) is placed in the slot (312) and abuts against the inner surface of the slot (312). The adjusting bolt (4) is also fitted with a locking nut (41).

5. An elevator hoistway top wheel fixation device according to claim 4, characterized in that: The size of the slot (312) is larger than the size of the inner end face of the adjusting bolt (4).

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