Marine monorail crane walking roller device convenient to disassemble and assemble

Abstract

The utility model provides a marine monorail crane walking roller device convenient to disassemble and assemble, which is characterized in that a shaft hole is formed in the center of a roller body in a penetrating manner along the front-back direction, a roller shaft extends into the shaft hole, a bearing is sleeved at the rear part of the roller shaft, the front part of the roller shaft is fixedly connected with a mounting hole of a side plate of a supporting mechanism, and the roller shaft comprises a head part, an annular boss and a tail part; the head is matched with a mounting hole of the supporting mechanism side plate, the annular boss and the supporting mechanism side plate are fixedly connected through a bolt, the annular boss is embedded into the shaft hole, the bearing is connected to the outer side of the tail in a sleeving mode, and an end cover is arranged on the rear side of the bearing and fixedly connected with the rear end of the roller body. The shape design of the roller shaft in the walking roller is optimized, the annular boss is arranged in the middle of the roller shaft, the side plate of the supporting mechanism is connected to the periphery of the annular boss through the bolt, when the roller component is disassembled, the roller shaft is disengaged backwards without hindrance, and the roller shaft and the side plate of the supporting mechanism can be separated by directly screwing off the bolt. And the roller dismounting convenience is improved.

Description

A marine monorail crane traveling roller device that is easy to assemble and disassemble Technical Field

[0001] This utility model relates to the field of traveling roller technology, and in particular to a traveling roller device for a marine monorail crane that is easy to assemble and disassemble. Background Technology

[0002] The traveling rollers of marine monorail cranes are key load-bearing components that are prone to wear and corrosion. Both the roller body and the bearings require frequent after-sales replacements, and the roller components need to be removed to replace them.

[0003] In existing monorail products, the design of the traveling roller is shown in Figure 1. A shaft hole 13 is provided on the inner side of the roller body 12. The shaft hole 13 accommodates the roller shaft 15 to pass through. The roller shaft 15 is limited in the roller body 12 by a sleeve bearing 17 and a bushing 18. The roller shaft 15 passes through the mounting hole 19 of the side plate 14 of the support mechanism. A connecting plate 16 is fixedly installed at the front end of the roller shaft 15. The size of the connecting plate 16 is larger than the size of the mounting hole 19. The connecting plate 16 is fixed to the front end of the side plate 14 of the support mechanism by bolts 20.

[0004] The above design has the following defects:

[0005] When the roller body 12 needs to be repaired or replaced, the connecting plate 16 is fixed to the front end of the roller shaft 15 and the connecting plate 16 cannot pass through the mounting hole 19. The rear part of the roller shaft 15 is limited inside the roller body 12 by the bearing 17. The roller shaft 15 cannot be moved out in the front or rear direction. The side plate 14 of the support mechanism needs to be removed together and the bearing 17 needs to be removed before the roller shaft 15 and the roller body 12 can be disassembled. This operation is time-consuming and increases labor costs and technical difficulty. Summary of the Invention

[0006] The purpose of this utility model is to provide a marine monorail crane traveling roller device that is easy to assemble and disassemble, optimize the type of roller shaft and the connection method between the roller shaft and the side plate, and improve the convenience of roller disassembly.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A marine monorail crane traveling roller device that is easy to assemble and disassemble includes a roller body, a bearing, and a roller shaft. The roller body has a through-hole running along its front-to-back direction at its center. The roller shaft extends into the through-hole. The bearing is sleeved on the rear of the roller shaft. The front of the roller shaft is fixedly connected to a mounting hole on the side plate of a support mechanism.

[0009] The roller shaft includes a head, an annular boss, and a tail. The head, annular boss, and tail are integrally formed from front to back. The outer diameter of the annular boss is larger than the outer diameter of the head and tail. The head mates with the mounting hole of the side plate of the support mechanism. The annular boss and the side plate of the support mechanism are fixedly connected by bolts. The annular boss is embedded in the shaft hole. The bearing is sleeved on the outside of the tail. An end cap is provided on the rear side of the bearing. The end cap is fixedly connected to the rear end of the roller body.

[0010] Furthermore, the end cap and the roller body are fixedly connected by screws.

[0011] Furthermore, a retaining ring is fitted onto the shoulder of the rear end of the tail section, and the retaining ring limits the inner edge of the bearing.

[0012] Furthermore, a washer is provided between the bolt head and the front end of the side plate of the support mechanism.

[0013] Furthermore, a sealing ring is filled between the bearing and the end cover, and the sealing ring mates with the inner wall of the roller body.

[0014] This utility model optimizes the shape design of the roller shaft in the walking roller. An annular boss is set in the middle of the roller shaft. The side plate of the support mechanism is connected to the outer periphery of the annular boss by bolts. When disassembling the roller components, the roller shaft can be pulled out backward without obstruction. The roller shaft and the side plate of the support mechanism can be separated by simply unscrewing the bolts, which improves the convenience of roller disassembly. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the structure of a prior art walking roller device.

[0016] The reference numerals in Figure 1 are as follows:

[0017] 12 Roller body, 13 Shaft hole, 14 Support mechanism side plate, 15 Roller shaft, 16 Connecting plate;

[0018] 17 Bearing, 18 Bushing, 19 Mounting Hole, 20 Bolt;

[0019] Figure 2 is a schematic diagram of the overall structure of this utility model;

[0020] Figure 3 is a structural schematic diagram of the roller shaft of this utility model;

[0021] The reference numerals in Figures 2 and 3 are as follows:

[0022] 1. Roller body, 2. Screw, 3. Bearing, 4. End cap, 5. Roller shaft;

[0023] 501 Head, 502 Annular Boss, 503 Tail, 504 Shoulder;

[0024] 6. Retaining ring, 7. Bolt, 8. Washer, 9. Shaft hole, 10. Side plate of support mechanism, 11. Sealing ring. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] This embodiment discloses a marine monorail crane traveling roller device that is easy to assemble and disassemble, as shown in Figure 2. It includes a roller body 1, a bearing 3 and a roller shaft 5. The roller body 1 has a shaft hole 9 through it in the front-to-back direction. The roller shaft 5 extends into the shaft hole 9. The bearing 3 is sleeved on the rear part of the roller shaft 5. The front part of the roller shaft 5 is fixedly connected to the mounting hole of the side plate 10 of the support mechanism.

[0027] As shown in Figure 3, the roller shaft 5 includes a head 501, an annular boss 502 and a tail 503. The head 501, annular boss 502 and tail 503 are integrally formed from front to back. The outer diameter of the annular boss 502 is larger than the outer diameter of the head 501 and the tail 503.

[0028] The head 501 mates with the mounting hole 12 of the side plate 10 of the support mechanism. The annular boss 502 and the side plate 10 of the support mechanism are fixedly connected by bolts 7 that pass through the side plate 10 of the support mechanism from front to back. A washer 8 is provided between the screw head of the bolt 7 and the front end of the side plate 10 of the support mechanism. The annular boss 502 is embedded in the shaft hole 9.

[0029] As shown in Figure 2, the bearing 3 is sleeved on the outside of the tail 503. The bearing 3 has an end cover 4 on its rear side. The end cover 4 is fixedly connected to the rear end of the roller body 1. The end cover 4 and the roller body 1 are fixedly connected by screws 2. The screws 2 are located on the outside of the shaft hole 9 and do not affect the installation of the bearing 3.

[0030] As shown in Figure 2, a retaining ring 6 is fitted onto the shoulder 504 at the rear end of the tail 503. The retaining ring 6 limits the inner edge of the bearing 3. A sealing ring 11 is filled between the bearing 3 and the end cover 4. The sealing ring 11 fits with the inner wall of the roller body 1 and limits the outer edge of the bearing 3. The rotational connection between the bearing 3 and the roller body 1 is stabilized by the limiting of the retaining ring 6 and the sealing ring 11 on the inner and outer edges of the bearing 3.

[0031] The roller device in this embodiment is installed using the following steps:

[0032] The head 501 of the roller shaft 5 is inserted into the side plate 10 of the support mechanism and fixed in the mounting hole 12 of the side plate 10 of the support mechanism by bolts 7 and washers 8. The rear end of the roller shaft is connected to the bearing 3 and fixed by end cap 4. The bearing 3 is then connected to the roller body 1. Finally, the end cap 4 is installed at the rear end of the roller body 1 by screws 2 to complete the closed assembly of the roller device.

[0033] In this embodiment, when disassembling the roller device, simply unscrew bolt 7 to separate the roller shaft 5 and the support mechanism side plate 10.

[0034] Compared with the prior art, the walking roller device of this embodiment can be installed on a thicker support mechanism side plate 10, ensuring the stable installation of the roller shaft 5 without having to consider the difficulty of disassembling the support mechanism side plate 10.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A marine monorail crane traveling roller device that is easy to assemble and disassemble, comprising a roller body (1), a bearing (3), and a roller shaft (5), wherein the roller body (1) has a shaft hole (9) extending through it in the front-rear direction, the roller shaft (5) extends into the shaft hole (9), the bearing (3) is sleeved on the rear part of the roller shaft (5), and the front part of the roller shaft (5) is fixedly connected to the mounting hole of the side plate (10) of the support mechanism, characterized in that, The roller shaft (5) includes a head (501), an annular boss (502) and a tail (503). The head (501), annular boss (502) and tail (503) are integrally formed from front to back. The outer diameter of the annular boss (502) is larger than the outer diameter of the head (501) and the tail (503). The head (501) is fitted with the mounting hole (12) of the side plate (10) of the support mechanism. The annular boss (502) and the side plate (10) of the support mechanism are fixedly connected by bolts (7). The annular boss (502) is embedded in the shaft hole (9). The bearing (3) is sleeved on the outside of the tail (503). The bearing (3) has an end cap (4) on its rear side. The end cap (4) is fixedly connected to the rear end of the roller body (1).

2. The marine monorail crane traveling roller device according to claim 1, characterized in that, The end cap (4) and the roller body (1) are fixedly connected by screws (2).

3. The marine monorail crane traveling roller device according to claim 2, characterized in that, A retaining ring (6) is fitted onto the shoulder (504) at the rear end of the tail (503), and the retaining ring (6) limits the inner edge of the bearing (3).

4. The marine monorail crane traveling roller device according to claim 1, characterized in that, A washer (8) is provided between the bolt head (7) and the front end of the side plate (10) of the support mechanism.

5. The marine monorail crane traveling roller device according to claim 1, characterized in that, A sealing ring (11) is filled between the bearing (3) and the end cover (4), and the sealing ring (11) fits with the inner wall of the roller body (1).

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