Walking device with guiding function and crane

Abstract

The utility model belongs to the technical field of cranes, and particularly relates to a walking device with a guiding function and a crane. The device comprises a walking frame and mounting seats symmetrically mounted on the walking frame, a guide rail; at least two horizontal guide wheels; wherein the horizontal guide wheels are respectively in rolling connection with two sides of the guide rail; and the wheel surface of the horizontal guide wheel is a drum-shaped surface. The wheel face, matched with the guide rail, of the horizontal guide wheel is arranged to be the drum-shaped face, the contact between the horizontal guide wheel and the guide rail is changed into point contact from line contact, only the contact points of the two horizontal guide wheels and the guide rail need to correspond to each other during installation, and the requirements for the perpendicularity of the horizontal guide wheel shafts and the parallelism of the two horizontal guide wheel shafts are not high. The problem that in the prior art, installation of the horizontal guide wheel and the guide rail is affected by installation errors and structural deformation is solved, friction force between the horizontal guide wheel and the guide rail is reduced, the rail gnawing phenomenon is greatly reduced, and the service life of the horizontal guide wheel, the service life of the wheel and the service life of the guide rail are prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of cranes, and in particular relates to a traveling device with a guiding function and a crane. Background Art

[0002] Crane refers to an electromechanical equipment used for vertical lifting or vertical lifting and horizontal movement of heavy objects. It is widely used in industrial production workshops. During the use of the crane, it is easily affected by factors such as the crane structure, trolley guide rail installation error, track beam stiffness, and civil foundation settlement, which can cause the crane to gnaw the rails.

[0003] Due to the rigid contact between the wheels and guide rails on the operating mechanism, the crane will chew the rails, causing wear of the guide rails and reducing the service life of the wheels, seriously affecting production efficiency. In order to minimize the probability of rail chewing, at least two horizontal guide wheels are provided on the operating mechanism, and the two horizontal guide wheels are respectively connected to the two sides of the guide rails in a rolling manner. In the prior art, the horizontal guide wheels are cylindrical or conical surfaces, which are in linear contact with the guide rails. During the installation of the guide wheels, high requirements are placed on the verticality of the guide wheel shaft and the parallelism of the two guide wheel shafts. If the structure is deformed after the bridge is loaded, it will be unfavorable for the guidance of the guide wheels and the guide rails, reducing the service life of the guide wheels and making rail chewing more likely to occur. Utility Model Content

[0004] The utility model aims to overcome the defect of the prior art in that the guide wheel has high installation requirements, and provides a walking device and a crane with a guiding function, which has a guide wheel that is easy to install and does not require precise alignment with a guide rail.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] As a first aspect, a walking device with a guiding function comprises:

[0007] A walking frame and a mounting seat symmetrically mounted on the walking frame;

[0008] Guide rails, fixedly arranged on the mounting platform;

[0009] At least two horizontal guide wheels are mounted on the two mounting seats respectively; wherein,

[0010] The horizontal guide wheels are respectively connected to the two sides of the guide rail in a rolling manner; and the wheel surface of the horizontal guide wheels is a drum-shaped surface.

[0011] Furthermore, the horizontal guide wheel is in point contact with the guide rail.

[0012] Furthermore, the horizontal guide wheel is rotatably mounted on the mounting frame via a mounting shaft and a bearing, and the mounting shaft is an eccentric shaft.

[0013] Furthermore, the horizontal guide wheel adjusts the distance L between the horizontal guide wheel and the guide rail according to the eccentricity of the eccentric shaft, wherein 0≤L≤10mm.

[0014] Furthermore, it also includes at least one wheel, which is rotatably mounted on the walking frame and is matched with the upper end surface of the guide rail.

[0015] Furthermore, the guide rail includes a connecting portion, a supporting portion and a matching portion fixedly mounted on the mounting platform by a fastening mechanism; wherein,

[0016] The matching portion includes a top matching end surface matching with the wheel and a side matching end surface matching with the horizontal guide wheel.

[0017] Furthermore, the top fitting end surface is a plane or an arc-shaped surface.

[0018] Furthermore, the side mating end surface is a plane or an inclined surface.

[0019] Furthermore, the fastening mechanism includes a base fixedly arranged on the mounting platform, and a fastening plate fastened on the base by bolts and nuts; the fastening plate is pressed on the connecting portion of the guide rail.

[0020] As a second aspect, a crane includes a main beam, a guide side running mechanism and a non-guide side running mechanism installed at both ends of the main beam; wherein:

[0021] The guide side running mechanism includes the walking device as described above.

[0022] The beneficial effects of the walking device and crane with a guiding function of the utility model are:

[0023] The utility model provides at least two horizontal guide wheels on a walking frame, and the horizontal guide wheels are respectively located on both sides of a guide rail to guide the traveling direction of the wheel, and the wheel surface of the horizontal guide wheel matched with the guide rail is set to a drum-shaped surface, abandoning the more conventional cylindrical guide wheel or conical guide wheel in the prior art, and changing the contact between the horizontal guide wheel and the guide rail from line contact to point contact. During installation, only the contact points of the two horizontal guide wheels and the guide rail need to correspond, and the requirements for the verticality of the horizontal guide wheel shaft and the parallelism of the two horizontal guide wheel shafts are not high. The design of the drum-shaped horizontal guide wheel solves the problem in the prior art that the installation of the horizontal guide wheel and the guide rail is affected by installation errors and structural deformation, reduces the friction between the horizontal guide wheel and the guide rail, greatly reduces the occurrence of the rail gnawing phenomenon, and extends the service life of the horizontal guide wheel, the wheel and the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Figure 1 It is a front view of the walking device in the embodiment of the utility model.

[0026] Figure 2 yes Figure 1 Right view of .

[0027] Figure 3 It is a cross-sectional view of the installation details of the horizontal guide wheel and the mounting frame in the embodiment of the utility model.

[0028] Figure 4 It is a detailed installation diagram of the fastening mechanism and the guide rail in the embodiment of the present utility model.

[0029] In the figure: 1. walking frame, 2. mounting seat, 3. wheel, 4. guide rail, 41. connecting part, 42. supporting part, 43. matching part, 5. horizontal guide wheel, 6. eccentric shaft, 7. bearing, 8. fastening mechanism, 81. base, 82. fastening pressure plate. DETAILED DESCRIPTION

[0030] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0031] like Figure 1-Figure 4 The specific embodiment of a walking device with a guiding function of the utility model shown in the figure comprises: a walking frame 1 and a mounting seat 2 symmetrically mounted on the walking frame 1, at least one wheel 3 rotatably mounted on the walking frame 1, a guide rail 4 arranged on the mounting platform, and at least two horizontal guide wheels 5 mounted on the mounting seat 2. In this embodiment, there are two horizontal guide wheels 5, which are respectively mounted on two mounting seats 2. The wheel 3 is matched with the upper end surface of the guide rail 4, and the two horizontal guide wheels 5 are respectively connected to the two sides of the guide rail 4 in a rolling manner. It should be emphasized that the wheel surface of the horizontal guide wheel 5 in this embodiment is a drum-shaped surface, which is in point contact with the two sides of the guide rail 4.

[0032] In this embodiment, the horizontal guide wheels 5 are respectively located on both sides of the guide rail 4 to guide the travel direction of the wheel 3. The wheel surface of the horizontal guide wheel 5 cooperating with the guide rail 4 is set to a drum-shaped surface, abandoning the more conventional cylindrical guide wheel or conical guide wheel in the prior art, and changing the contact between the horizontal guide wheel 5 and the guide rail 4 from line contact to point contact. During installation, only the contact points of the two horizontal guide wheels 5 and the guide rail 4 need to correspond, and the requirements for the verticality of the axis of the horizontal guide wheel 5 and the parallelism of the two horizontal guide wheels 5 are not high. The design of the drum-shaped horizontal guide wheel 5 solves the problem in the prior art that the installation of the horizontal guide wheel 5 and the guide rail 4 is affected by installation errors and structural deformation, reduces the friction between the horizontal guide wheel 5 and the guide rail 4, greatly reduces the occurrence of rail gnawing, and extends the service life of the horizontal guide wheel 5, the wheel 3 and the guide rail 4.

[0033] like Figure 3 and Figure 4 As shown, in this embodiment, the guide rail 4 includes a connecting portion 41, a supporting portion 42 and a matching portion 43 fixedly mounted on the mounting platform by a fastening mechanism 8; wherein the matching portion 43 includes a top matching end surface matching with the wheel 3 and a side matching end surface matching with the horizontal guide wheel 5. It should be further explained that the top matching end surface can be a plane or an arc surface, and the side matching end surface can be a plane or an inclined surface, and the top matching end surface and the side matching end surface are adjusted according to the specific installation accuracy requirements.

[0034] As an implementation method, when the positioning accuracy of the wheel 3, the horizontal wire wheel and the guide rail 4 is required to be high, the top matching end surface of the guide rail 4 and the side matching end surfaces on both sides are processed and are both flat.

[0035] As another embodiment, when there is no requirement for the positioning accuracy of the wheel 3, the horizontal wire wheel and the guide rail 4, the guide rail 4 is not processed, the top mating end face of the guide rail 4 is an arc-shaped surface, and the side mating end faces on both sides of the guide rail 4 are inclined surfaces.

[0036] In order to adapt to different usage scenarios and different requirements, the horizontal guide wheel 5 in this embodiment is rotatably mounted on the mounting frame through the mounting shaft and the bearing 7, and the mounting shaft adopts the eccentric shaft 6. The horizontal guide wheel 5 adjusts the distance L between the horizontal guide wheel 5 and the guide rail 4 according to the eccentricity of the eccentric shaft 6, where 0≤L≤10mm. Figure 2 and Figure 3 As shown, the setting of the eccentric shaft 6 in this embodiment allows the gap L between the horizontal guide wheel 5 and the guide rail 4 to be adjusted according to the accuracy requirements. In combination with the guide rail 4 that has been processed on both sides, that is, the side matching end faces on both sides of the guide rail 4 are processed to be flat, it is suitable for places that require higher positioning accuracy.

[0037] Reference Figure 4The fastening mechanism 8 in this embodiment includes a base 81 fixedly arranged on the mounting platform, a fastening plate 82 fastened on the base 81 by bolts and nuts; the fastening plate 82 is pressed on the connecting portion 41 of the guide rail 4. It should be understood that the above-mentioned fastening mechanism 8 is a preferred embodiment for mounting the guide rail 4 on the mounting platform, and fastening mechanisms 8 of other structures may also be used. The specific structure of the fastening mechanism 8 is not absolutely limited here. Specifically, the mounting platform in this embodiment may be a workshop floor or other platform where a crane needs to be installed.

[0038] The crane based on the above-mentioned traveling device includes a main beam, a guide side running mechanism installed at both ends of the main beam, and a non-guide side running mechanism. The guide side running mechanism in this embodiment includes an end beam and a traveling device installed at both ends of the end beam. It should be further explained that in this embodiment, the two traveling devices include the same guide rail 4, and each traveling device includes two horizontal guide wheels 5 respectively located on both sides of the guide rail 4 for guiding with the guide rail 4 to achieve the guiding effect of the crane operation. It should be understood that providing a traveling device at both ends of the end beam is only a more preferred solution of the utility model. There is no absolute limitation on how many of the above-mentioned traveling devices are provided on the crane, and adjustments can be made according to specific usage scenarios and needs.

[0039] It should be understood that the specific embodiments described above are only used to explain the present invention, and are not used to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the scope of protection of the present invention.

Claims

1. A walking device with a guiding function, characterized in that: include: A walking frame (1) and a mounting seat (2) symmetrically mounted on the walking frame (1); A guide rail (4) fixedly arranged on the mounting platform; At least two horizontal guide wheels (5) are respectively mounted on the two mounting seats (2); wherein: The horizontal guide wheels (5) are respectively connected to two sides of the guide rail (4) in a rolling manner; and the wheel surface of the horizontal guide wheels (5) is a drum-shaped surface.

2. A walking device with a guiding function according to claim 1, characterized in that: The horizontal guide wheel (5) is in point contact with the guide rail (4).

3. A walking device with a guiding function according to claim 1, characterized in that: The horizontal guide wheel (5) is rotatably mounted on the mounting seat (2) via a mounting shaft and a bearing (7), and the mounting shaft is an eccentric shaft (6).

4. A walking device with a guiding function according to claim 3, characterized in that: The horizontal guide wheel (5) is adjusted to a distance L from the guide rail (4) according to the eccentricity of the eccentric shaft (6), wherein 0≤L≤10mm.

5. The walking device with a guiding function according to claim 1, characterized in that: It also comprises at least one wheel (3) which is rotatably mounted on the walking frame (1) and is arranged in cooperation with the upper end surface of the guide rail (4).

6. A walking device with a guiding function according to claim 5, characterized in that: The guide rail (4) comprises a connecting portion (41), a supporting portion (42) and a matching portion (43) which are fixedly mounted on the mounting platform via a fastening mechanism (8); wherein: The matching portion (43) comprises a top matching end surface matching with the wheel (3) and a side matching end surface matching with the horizontal guide wheel (5).

7. The walking device with a guiding function according to claim 6, characterized in that: The top matching end surface is a plane or an arc surface.

8. The walking device with a guiding function according to claim 6, characterized in that: The side mating end surface is a plane or an inclined surface.

9. The walking device with a guiding function according to claim 6, characterized in that: The fastening mechanism (8) comprises a base (81) fixedly arranged on the mounting platform, and a fastening pressure plate (82) fastened to the base (81) by means of bolts and nuts; the fastening pressure plate (82) is pressed onto the connecting portion (41) of the guide rail (4).

10. A crane, characterized in that: It includes a main beam, a guide side running mechanism and a non-guide side running mechanism installed at both ends of the main beam; wherein, The guide side running mechanism includes a running device as described in any one of claims 1-9.

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