Crane wheel anti-suspension and straightness adjusting device

Abstract

The utility model discloses an anti-suspension and straightness adjusting device for wheels of a crane. The anti-suspension and straightness adjusting device comprises a wheel group, an eccentric sleeve and a wheel track adjusting component, a supporting shaft is rotationally mounted on the wheel group; the eccentric sleeve comprises sleeve parts and a flange part, the two ends of the supporting shaft are fixedly sleeved with the sleeve parts, the inner diameter and the outer diameter of each sleeve part are eccentrically arranged, one end of each sleeve part is fixedly connected with the flange part, the flange part is coaxial with the outer diameter of the corresponding sleeve part, first through holes are evenly distributed in the flange part in the circumferential direction, and fixing bolts are arranged in the first through holes. A plurality of second through holes are formed between the adjacent first through holes; and wheel track adjusting assemblies are arranged on the flange parts. According to the device, the phenomena of wheel suspension and rail gnawing can be effectively avoided through structural adjustment, adjustment is convenient, stable operation of the crane trolley is ensured, and potential safety hazards are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of crane wheels, in particular to a crane wheel anti-suspension and straightness adjustment device. Background Art

[0002] The crane trolley moves on the track of the main beam. Wheels are installed at the four corners of the bottom of the trolley frame. Due to processing errors, the trolley may have three legs and / or rail gnawing. The three-legged phenomenon refers to the phenomenon that three wheels touch the track and one wheel is suspended in the air; the rail gnawing phenomenon refers to the phenomenon that when the center distance of the track deviates from the wheel distance of the trolley, the trolley wheel is not in the center of the track, and the wheel rim of the trolley will rub against the track, resulting in abnormal wear of the wheel. The above situation not only causes unstable operation of the trolley, but also poses a safety hazard to the trolley in long-term operation. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a crane wheel anti-suspension and straightness adjustment device, which can effectively avoid wheel suspension and rail gnawing through structural adjustment, is easy to adjust, ensures the stable operation of the crane trolley, and avoids safety hazards.

[0004] The utility model provides a crane wheel anti-suspension and straightness adjustment device, comprising a wheel set, an eccentric sleeve and a wheelbase adjustment component;

[0005] A support shaft is rotatably mounted on the wheel set;

[0006] The eccentric sleeve comprises a sleeve portion and a flange portion, the sleeve portions are fixedly sleeved at both ends of the support shaft, the inner diameter and outer diameter of the sleeve portion are eccentrically arranged, the flange portion is fixedly connected to one end of the sleeve portion away from the support shaft, the flange portion is coaxial with the outer diameter of the sleeve portion, a plurality of first through holes are uniformly distributed along the circumferential direction near the edge of the flange portion, fixing bolts are arranged in the first through holes, and a plurality of second through holes are arranged between adjacent first through holes;

[0007] The wheelbase adjustment components are arranged on the flanges on both sides of the wheel set, and are used to adjust the position of the wheel set along the axial direction of the support shaft.

[0008] Furthermore, the wheel set includes a mounting seat, a driving wheel is arranged at one end of the bottom of the mounting seat, and a driven wheel is arranged at the other end, and the support shaft is arranged on the mounting seat and located between the driving wheel and the driven wheel.

[0009] Furthermore, the driving wheel is transmission-connected with a three-in-one motor for driving the driving wheel to rotate.

[0010] Furthermore, the eccentricity between the inner diameter and the outer diameter of the sleeve portion is 0.5-2 cm.

[0011] Furthermore, the wheelbase adjustment assembly includes an adjusting bolt, and the flange portion is provided with a plurality of threaded holes evenly distributed along the circumferential direction near the edge, the outer sides of the threaded holes are threadedly connected with the adjusting bolts, and the adjusting bolts are threadedly sleeved with a locking nut located on the outer side of the threaded hole, and the thread of the locking nut is arranged in the opposite direction to the thread of the threaded hole.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The wheel structure of the utility model is provided with a wheel group, an eccentric sleeve and a wheelbase adjustment component; when the crane trolley has three legs, unscrew the fixing bolts, then rotate the eccentric sleeve to adjust the height of the wheel group, and re-fix the eccentric sleeve after the adjustment is completed. Make each wheel group contact with the track to avoid the phenomenon of suspension; when the crane trolley has the phenomenon of gnawing the rail, adjust the position of the wheel group through the wheelbase adjustment component to align it with the center of the track. The wheel structure of the present application can effectively avoid the phenomenon of wheel suspension and gnawing the rail through structural adjustment, and the adjustment is convenient, ensuring the stable operation of the crane trolley and avoiding safety hazards.

[0014] It should be understood that the contents described in the utility model summary are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0016] Figure 1 This is a schematic diagram of the structure of the crane wheel anti-suspension and straightness adjustment device;

[0017] Figure 2 A schematic diagram of the partial structure of the crane wheel anti-suspension and straightness adjustment device;

[0018] Figure 3 A schematic diagram of the partial cross-section structure of the crane wheel anti-suspension and straightness adjustment device;

[0019] Figure 4 It is a structural schematic diagram of the eccentric sleeve;

[0020] Figure 5 This is a structural schematic diagram of a crane wheel anti-suspension and straightness adjustment device installed on a trolley frame.

[0021] Numbers in the figure: 1, wheel assembly; 2, eccentric sleeve; 3, wheelbase adjustment assembly; 4, trolley frame; 5, main beam;

[0022] 11. Support shaft; 12. Mounting seat; 13. Driving wheel; 14. Driven wheel; 15. Three-in-one motor;

[0023] 21. sleeve portion; 22. flange portion; 23. first through hole; 24. fixing bolt; 25. second through hole; 26. threaded hole;

[0024] 31. Adjusting bolt; 32. Locking nut;

[0025] 41. cross beam; 42. end beam;

[0026] 51. Track. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] Please refer to Figure 1 to Figure 5 , the embodiment of the utility model provides a crane wheel anti-suspension and straightness adjustment device, including a wheel set 1, an eccentric sleeve 2 and a wheelbase adjustment assembly 3;

[0030] A support shaft 11 is rotatably mounted on the wheel set 1;

[0031] The eccentric sleeve 2 includes a sleeve portion 21 and a flange portion 22. The sleeve portions 21 are fixedly sleeved at both ends of the support shaft 11. The inner diameter and outer diameter of the sleeve portion 21 are eccentrically arranged. The end of the sleeve portion 21 away from the support shaft 11 is fixedly connected with the flange portion 22. The flange portion 22 is coaxial with the outer diameter of the sleeve portion 21. A plurality of first through holes 23 are uniformly distributed along the circumferential direction near the edge of the flange portion 22. Fixing bolts 24 are arranged in the first through holes 23. A plurality of second through holes 25 are arranged between adjacent first through holes 23.

[0032] Wheelbase adjustment components 3 are provided on the flanges 22 on both sides of the wheel set 1 , and are used to adjust the position of the wheel set 1 along the axial direction of the support shaft 11 .

[0033] In this embodiment, the wheel structure is mounted on the trolley frame 4, which is composed of a crossbeam 41 and end beams 42 fixed at both ends of the crossbeam. The wheel structure of the present application is mounted on both ends of the bottom of the end beam 42, and the wheel structure is fixedly connected to the end beam 42 through the flange portion 22 of the eccentric sleeve 2.

[0034] When the crane trolley has three legs, the suspended wheel set 1 needs to be adjusted. First, unscrew the fixing bolts 24, and then rotate the eccentric sleeve 2. Under the action of the eccentric structure of the sleeve part 21, the height of the wheel set 1 is adjusted. After adjustment, fine-tune the second through hole 25 to align with the mounting screw hole on the end beam 42. At this time, pass the fixing bolt 24 through the second through hole 25 and thread it to the end beam 42, and re-fix the eccentric sleeve 2;

[0035] The through holes (the first through hole 23 and the second through hole 25) for installing the fixing bolts 24 are arranged at intervals of 15-30 degrees, so as to realize multi-level adjustment of the height of the wheel set 1, and ensure that the wheel set 1 after adjustment falls on the track 51 of the main beam 5, and avoids the phenomenon of hanging in the air;

[0036] When the crane trolley bites the rail, the position of the wheel set 1 is adjusted through the wheelbase adjustment component 3 to align it with the center of the track 51. The wheel structure of the present application can effectively avoid the wheel hanging and the rail biting phenomenon through structural adjustment, and the adjustment is convenient, which ensures the stable operation of the crane trolley and avoids safety hazards.

[0037] In a preferred embodiment, if Figure 1 and Figure 2 As shown, the wheel set 1 includes a mounting seat 12, a driving wheel 13 is provided at one end of the bottom of the mounting seat 12, and a driven wheel 14 is provided at the other end, and a support shaft 11 is provided on the mounting seat 12 and located between the driving wheel 13 and the driven wheel 14; the wheel set 1 is composed of the driving wheel 13 and the driven wheel 14, has a large contact area with the track 51, and has good structural stability.

[0038] In a preferred embodiment, if Figure 1 As shown, the driving wheel 13 is transmission-connected to a three-in-one motor 15 for driving the driving wheel 13 to rotate, and the driving wheel 13 has sufficient power and good driving effect.

[0039] In a preferred embodiment, if Figure 4 As shown, the eccentricity between the inner diameter and the outer diameter of the sleeve part 21 is 0.5-2 cm, a keyway is provided on the inner wall of the sleeve part 21, and a flat key is provided on the support shaft 11, so that the connection is stable and the anti-wheel suspension adjustment effect is good.

[0040] In a preferred embodiment, if Figure 2 and Figure 3 As shown, the wheelbase adjustment assembly 3 includes an adjusting bolt 31, and a plurality of threaded holes 26 are evenly distributed along the circumferential direction near the edge of the flange portion 22. The outer sides of the threaded holes 26 are threadedly connected with the adjusting bolts 31, and the outer sides of the threaded holes 26 on the adjusting bolts 31 are threadedly sleeved with locking nuts 32, and the threads of the locking nuts 32 are arranged in the opposite direction to the threads of the threaded holes 26.

[0041] In this embodiment, when the crane trolley has a rail gnawing phenomenon, take the case where the wheel set 1 is offset to the left relative to the center line of the track 51 as an example. First, loosen the fixing bolt 24 so that the eccentric sleeve 2 can move left and right relative to the end beam 42. Then loosen the adjusting bolts 31 on the left side of the wheel set 1, and then rotate the adjusting bolts 31 on the right side of the wheel set 1 one by one. The adjusting bolts 31 are pressed against the end beam 42 to move the wheel set 1 to the right relative to the end beam 42. After the wheel set 1 moves into place, tighten the adjusting bolts 31 on the left side, and then tighten the locking nuts 32 to ensure that the adjusting bolts 31 will not loosen. Finally, tighten the fixing bolt 24 to complete the adjustment. At this time, the wheel set 1 is aligned with the center line of the track 51, solving the problem of rail gnawing.

[0042] The wheelbase adjustment component 3 of the present application only needs to open a threaded hole 26 on the eccentric sleeve 2. The eccentric sleeve 2 is small in size and light in weight, and the threaded hole 26 is easy to process.

[0043] Preferably, the size of the fixing bolt 24 is M24, and the size of the adjusting bolt 31 is M30. The fixing bolt 24 and the adjusting bolt 31 can share the M30 threaded hole on the flange portion 22, and the adjusting bolt 31 engages with the M30 threaded hole to achieve the effect of adjusting the straightness of the wheel set 1; at the same time, the minor diameter of the M30 threaded hole is 26.5 mm, and the fixing bolt 24 can be used as a through hole (the first through hole 23 and the second through hole 25) relative to the M24. The M24 fixing bolt 24 passes through the M30 threaded hole and engages with the M24 threaded hole on the end beam to achieve a fixed connection.

[0044] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. 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 present application. 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.

[0046] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A crane wheel anti-suspension and straightness adjustment device, characterized in that: It comprises a wheel set (1), an eccentric sleeve (2) and a wheelbase adjustment component (3); A support shaft (11) is rotatably mounted on the wheel set (1); The eccentric sleeve (2) comprises a sleeve portion (21) and a flange portion (22), the sleeve portion (21) is fixedly sleeved on both ends of the support shaft (11), the inner diameter and outer diameter of the sleeve portion (21) are eccentrically arranged, the flange portion (22) is fixedly connected to one end of the sleeve portion (21) away from the support shaft (11), the flange portion (22) is coaxial with the outer diameter of the sleeve portion (21), a plurality of first through holes (23) are uniformly distributed along the circumferential direction near the edge of the flange portion (22), a fixing bolt (24) is arranged in the first through hole (23), and a plurality of second through holes (25) are arranged between adjacent first through holes (23); The wheelbase adjustment components (3) are arranged on the flanges (22) on both sides of the wheel set (1) and are used to adjust the position of the wheel set (1) along the axial direction of the support shaft (11).

2. The crane wheel anti-suspension and straightness adjustment device according to claim 1, characterized in that: The wheel set (1) comprises a mounting seat (12), a driving wheel (13) is arranged at one end of the bottom of the mounting seat (12), and a driven wheel (14) is arranged at the other end, and the support shaft (11) is arranged on the mounting seat (12) and is located between the driving wheel (13) and the driven wheel (14).

3. The crane wheel anti-suspension and straightness adjustment device according to claim 2, characterized in that: The driving wheel is transmission-connected with a three-in-one motor for driving the driving wheel to rotate.

4. The crane wheel anti-suspension and straightness adjustment device according to claim 1, characterized in that: The eccentricity between the inner diameter and the outer diameter of the sleeve part (21) is 0.5-2 cm.

5. The crane wheel anti-suspension and straightness adjustment device according to claim 1, characterized in that: The wheelbase adjustment assembly (3) comprises an adjustment bolt (31), a plurality of threaded holes (26) are evenly distributed along the circumferential direction near the edge of the flange portion (22), the outer sides of the threaded holes (26) are all threadedly connected with the adjustment bolts (31), a locking nut (32) is threadedly sleeved on the outer side of the threaded hole (26) on the adjustment bolt (31), and the thread of the locking nut (32) is arranged in the opposite direction to the thread of the threaded hole (26).

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