Guide wheel mechanism for crane

Abstract

The utility model discloses a guide wheel mechanism for a crane. The guide wheel mechanism comprises two guide wheel components and a mounting seat, adjusting structures are arranged between the guide wheel assemblies and the mounting base. And each guide wheel assembly is provided with a stepped adaptive structure. According to the guide wheel mechanism, the distance between the two guide wheel assemblies is adjusted by arranging the adjusting structure, so that the guide wheel mechanism can be used for guide rails with different width specifications, the applicability is improved, and the customization cost is reduced. According to the guide wheel mechanism, the step adaptive structure is arranged to adjust the thickness of the guide wheel according to requirements, so that the guide wheel can be used for guide rail guide grooves of different specifications, the applicability of the guide wheel mechanism is improved, the repeated utilization rate is increased, and the customization cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of crane guide wheel equipment, and specifically to a guide wheel mechanism for cranes. Background Technology

[0002] When the trolley and crane of a single or double girder bridge or gantry crane have a large operating span and high operating speed, it is necessary to install horizontal guide wheels on the rails to prevent rail wear.

[0003] Traditional crane horizontal guide wheels are large in size, have low load-bearing capacity, are cumbersome to manufacture, have complex structures, and are costly. To address these issues, publication number CN201821546807.5 discloses a crane horizontal guide wheel device, comprising: a guide wheel, a deep groove ball bearing, a guide wheel shaft, and a bracket. The guide wheel is connected to the guide wheel shaft via the deep groove ball bearing, and the bracket has a guide wheel shaft fixing plate. One end of the outer ring of the deep groove ball bearing is fixed to the inner step of the guide wheel's bore, and the other end is fixed to the inner wall of the guide wheel via a retaining ring. One end of the inner ring of the deep groove ball bearing is fixed to the shoulder of the guide wheel shaft, and the other end is sequentially fixed to the guide wheel shaft via a first shaft end baffle and a first bolt group. One end of the guide wheel shaft is connected to the lower plate of the guide wheel shaft fixing plate via its shoulder, and the other end is sequentially fixed to the upper plate of the guide wheel shaft fixing plate via a second bolt group and a second shaft end baffle. The beneficial effects of this utility model are as follows: the tread surface of the guide wheel is curved, resulting in better load-bearing capacity; the entire guide wheel device has a simple structure, uses less material, has low cost, and is suitable for mass production. However, this guide wheel device also has the following problems: 1. The distance between the two guide wheels in existing guide wheel devices is mostly fixed and cannot be adjusted. When it needs to be used with guide rails of different widths, the guide wheel shaft fixing plate needs to be replaced, resulting in high customization costs and low applicability; 2. The thickness of the guide wheels in existing guide wheel devices is mostly a fixed size, which cannot be quickly adjusted according to the width requirements of the guide rail groove, resulting in low applicability and affecting the efficiency of subsequent installation and debugging. Utility Model Content

[0004] This utility model addresses the shortcomings of current technology by providing a guide wheel mechanism for cranes, aiming to solve the technical problems of low applicability, high customization cost, and slow installation and commissioning efficiency of existing guide wheel mechanisms.

[0005] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0006] A guide wheel mechanism for a crane includes two guide wheel assemblies and a mounting base. The two guide wheel assemblies are disposed at the bottom of the mounting base. An adjustment structure is provided between each guide wheel assembly and the mounting base for adjusting the distance between the two guide wheel assemblies. Each guide wheel assembly is provided with a stepped adaptation structure for adapting to the use of guide rails of different specifications.

[0007] As a further improvement, the mounting base is provided with a base plate, and each of the adjustment structures includes a straight groove hole and an adjustment hole group. The two straight groove holes are arranged on the base plate in a mirror-like manner, and the adjustment hole groups are respectively arranged on the side wall of the base plate. The guide wheel assemblies are respectively arranged in the straight groove holes and can move along the straight groove holes.

[0008] As a further improvement, each of the adjusting hole groups includes multiple threaded holes and bolts, and each threaded hole extends through the straight slot hole, with equal spacing between adjacent threaded holes.

[0009] As a further improvement, each guide wheel assembly includes a guide wheel and a support. The support is provided with a shaft, and the guide wheel is disposed at the end of the shaft, and the shaft and the guide wheel are rotatably connected. The support is provided with a guide block, and the guide block is disposed in the straight slot hole.

[0010] As a further improvement, the support is provided with a guide block, which is disposed in the straight slot hole, and the side of the guide block is provided with a positioning hole, which is used for the insertion and fixing of the bolt.

[0011] As a further improvement, the support is also provided with a fixing plate and two first threaded holes. The two first threaded holes are respectively located on the side of the guide block, and the fixing plate is located on the top of the guide block. The fixing plate is provided with two first screws, and the first screws are respectively connected to the first threaded holes to fix the support to the base plate.

[0012] As a further improvement, the stepped adapter structure is disposed on the guide wheel; the stepped adapter structure includes a first ring, a second ring, and a third ring; the first ring is disposed on the outside of the guide wheel, the second ring is disposed on the outside of the first ring, and the third ring is disposed on the outside of the second ring;

[0013] The outer wall of the guide wheel is provided with a plurality of annular arrays of second threaded holes; the first ring, the second ring and the third ring are each provided with a plurality of annular arrays of countersunk holes and a plurality of annular arrays of threaded holes, each countersunk hole is provided with a third threaded hole, and each threaded hole is respectively provided between two adjacent countersunk holes; each countersunk hole is provided with a removable screw, and the removable screw is used for locking.

[0014] As a further improvement, the thickness of the guide wheel is less than the thickness of the first ring, the thickness of the first ring is less than the thickness of the second ring, and the thickness of the second ring is less than the thickness of the second ring.

[0015] As a further improvement, the mounting base is also provided with a second support, the second support is provided with a second mounting side plate, and the second mounting side plate is provided with a plurality of second through holes.

[0016] Compared with the prior art, the above-mentioned one or more technical solutions in the guide wheel mechanism for cranes provided by the embodiments of this utility model have at least one of the following technical effects:

[0017] 1. This utility model adjusts the distance between the two guide wheel assemblies by setting an adjustment structure consisting of a straight groove hole and an adjustment hole group, thereby making the guide wheel mechanism usable for guide rails of different width specifications, improving applicability and reducing customization costs.

[0018] 2. This utility model uses a stepped adaptation structure to adjust the thickness of the guide wheel according to requirements, thereby enabling the guide wheel to be used with guide rails and guide grooves of different specifications, improving the applicability of the guide wheel mechanism, increasing the reusability, and reducing customization costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the guide wheel mechanism for a crane in this embodiment;

[0021] Figure 2 This is a front view schematic diagram of the guide wheel mechanism for a crane in this embodiment;

[0022] Figure 3 This is a bottom view schematic diagram of the guide wheel mechanism for a crane in this embodiment;

[0023] Figure 4 for Figure 3 Schematic diagram of the cross section of AA;

[0024] Figure 5 for Figure 4 Cross-sectional view of the guide wheel assembly. Detailed Implementation

[0025] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0026] For examples, see the appendix. Figures 1-5 A guide wheel mechanism 1 for a crane includes two guide wheel assemblies 2 and a mounting base 3. The two guide wheel assemblies 2 are disposed at the bottom of the mounting base 3. An adjustment structure 4 is provided between each guide wheel assembly 2 and the mounting base 3. The adjustment structure 4 is used to adjust the distance between the two guide wheel assemblies 2. Each guide wheel assembly 2 is provided with a stepped adaptation structure 5. The stepped adaptation structure 5 is used to adapt to the use of guide rails of different specifications.

[0027] The mounting base 3 is provided with a base plate 30. Each adjustment structure 4 includes a straight slot 40 and an adjustment hole group 41. Two straight slots 40 are arranged mirror-image opposite each other on the base plate 30. The adjustment hole groups 41 are respectively located on the side walls of the base plate 30. The guide wheel assemblies 2 are respectively disposed within the straight slots 40 and can move along the straight slots 40. Each adjustment hole group 41 includes multiple threaded holes 410 and bolts 411. The threaded holes 410 all penetrate into the straight slots 40, and adjacent threaded holes 410 are spaced at equal intervals 412. The adjustment structure 4 is used to adjust the distance between the two guide wheel assemblies, thereby enabling the guide wheel mechanism 1 to be used with guide rails of different widths, improving applicability and reducing customization costs.

[0028] Each guide wheel assembly 2 includes a guide wheel 20 and a support 21. The support 21 has a shaft 210, and the guide wheel 20 is disposed at the end of the shaft 210, with the shaft 210 and the guide wheel 20 being rotatably connected. The support 21 also has a guide block 211, which is disposed within the straight slot hole 40. The guide block 211 has a positioning hole on its side, which is used for inserting and fixing the bolt 411.

[0029] The support 21 is also provided with a fixing plate 212 and two first threaded holes 213. The two first threaded holes 213 are respectively located on the side of the guide block 211, and the fixing plate 212 is located on the top of the guide block 211. The fixing plate 212 is provided with two first screws 214. The first screws 214 are respectively connected to the first threaded holes 213 to fix the support 21 on the base plate 30. The fixing plate 212 and the two first threaded holes 213 are used to fix the support after adjustment, prevent displacement, and ensure the stability of the guide wheel mechanism 1.

[0030] The stepped adapter structure 5 is disposed on the guide wheel 20; the stepped adapter structure 5 includes a first ring 50, a second ring 51, and a third ring 52; the first ring 50 is disposed on the outer side of the guide wheel 20, the second ring 51 is disposed on the outer side of the first ring 50, and the third ring 52 is disposed on the outer side of the second ring 51; the outer wall of the guide wheel 20 is provided with a plurality of annular arrays of second threaded holes 200; the first ring 50, the second ring 51, and the third ring 52 are each provided with a plurality of annular arrays of countersunk holes 500 and a plurality of annular arrays of threaded holes 502, and each countersunk hole 500 is provided with a third threaded hole 500a. The threaded holes 502 are respectively set between two adjacent countersunk holes 500; each countersunk hole 500 is provided with a removable screw 501, which is used for locking; the thickness of the guide wheel 20 is less than the thickness of the first ring 50, the thickness of the first ring 50 is less than the thickness of the second ring 51, and the thickness of the second ring 51 is less than the thickness of the second ring 51; the stepped adapter structure 5 is used to adjust the thickness of the guide wheel 20 according to the requirements, so that the guide wheel can be used for guide rails and guide grooves of different specifications, improving the applicability of the guide wheel mechanism 1, increasing the reusability, and reducing the customization cost.

[0031] The mounting base 3 is also provided with a second support 31, the second support 31 is provided with a second mounting side plate 310, the second mounting side plate 310 is provided with a plurality of second through hole groups 310a, each of the second through hole groups 310a is composed of a plurality of second through holes, and the second support 31 is used for fixing crane beams or other components.

[0032] This invention adjusts the spacing between the two guide wheel assemblies by using an adjustment structure consisting of straight slot holes and an adjustment hole group. This allows the guide wheel mechanism to be used with guide rails of different widths, improving applicability and reducing customization costs. Furthermore, this invention incorporates a stepped adaptation structure to adjust the thickness of the guide wheels as needed, enabling the guide wheels to be used with guide rail grooves of different specifications. This further enhances the applicability of the guide wheel mechanism, increases reusability, and reduces customization costs.

[0033] This utility model is not limited to the above-described embodiments. Other guide wheel mechanisms for cranes obtained by using the same or similar structures or devices as the above-described embodiments of this utility model are all within the protection scope of this utility model.

Claims

1. A guide wheel mechanism for a crane, characterized in that: The guide wheel mechanism includes two guide wheel assemblies and a mounting base. The two guide wheel assemblies are disposed at the bottom of the mounting base. An adjustment structure is provided between each guide wheel assembly and the mounting base. The adjustment structure is used to adjust the distance between the two guide wheel assemblies. Each guide wheel assembly is provided with a stepped adaptation structure. The stepped adaptation structure is used to adapt to the use of guide rails of different specifications.

2. The guide wheel mechanism for a crane according to claim 1, characterized in that: The mounting base is provided with a base plate, and each of the adjustment structures includes a straight slot hole and an adjustment hole group. The two straight slot holes are arranged on the base plate in a mirror-like manner, and the adjustment hole groups are respectively arranged on the side wall of the base plate. The guide wheel assemblies are respectively arranged in the straight slot holes and can move along the straight slot holes.

3. The guide wheel mechanism for a crane according to claim 2, characterized in that: Each adjustment hole group includes multiple threaded holes and bolts. The threaded holes all extend through the straight slot hole, and there is an equal spacing between two adjacent threaded holes.

4. The guide wheel mechanism for a crane according to claim 3, characterized in that: Each guide wheel assembly includes a guide wheel and a support. The support is provided with a shaft, and the guide wheel is disposed at the end of the shaft. The shaft and the guide wheel are rotatably connected. The support is provided with a guide block, which is disposed in the straight slot hole.

5. The guide wheel mechanism for a crane according to claim 4, characterized in that: The support is provided with a guide block, which is disposed in the straight slot hole. The side of the guide block is provided with a positioning hole, which is used for the insertion and fixing of the bolt.

6. The guide wheel mechanism for a crane according to claim 5, characterized in that: The support is also provided with a fixing plate and two first threaded holes. The two first threaded holes are respectively located on the side of the guide block, and the fixing plate is located on the top of the guide block. The fixing plate is provided with two first screws, and the first screws are respectively connected to the first threaded holes to fix the support to the base plate.

7. The guide wheel mechanism for a crane according to claim 6, characterized in that: The stepped adapter structure is disposed on the guide wheel; the stepped adapter structure includes a first ring, a second ring and a third ring; the first ring is disposed on the outside of the guide wheel, the second ring is disposed on the outside of the first ring, and the third ring is disposed on the outside of the second ring; The outer wall of the guide wheel is provided with a plurality of annular arrays of second threaded holes; the first ring, the second ring and the third ring are each provided with a plurality of annular arrays of countersunk holes and a plurality of annular arrays of threaded holes, each countersunk hole is provided with a third threaded hole, and each threaded hole is respectively provided between two adjacent countersunk holes; each countersunk hole is provided with a removable screw, and the removable screw is used for locking.

8. The guide wheel mechanism for a crane according to claim 7, characterized in that: The thickness of the guide wheel is less than the thickness of the first ring, the thickness of the first ring is less than the thickness of the second ring, and the thickness of the second ring is less than the thickness of the second ring.

9. The guide wheel mechanism for a crane according to claim 8, characterized in that: The mounting base is also provided with a second support, the second support is provided with a second mounting side plate, and the second mounting side plate is provided with a plurality of second through holes.

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