A crane guiding device and mechanism

Abstract

A crane guiding device and mechanism, relating to the field of track-walking technology, is disclosed. The device includes a guide seat, which is generally rectangular in shape. The lower surface of the guide seat has an inverted U-shaped opening groove along the front-to-back direction. At least two guide wheel sets are connected to the left and right side walls of the inverted U-shaped opening groove via pluggable pins. Each guide wheel set is arranged side-by-side along the front-to-back direction, and each guide wheel set includes two guide wheels respectively disposed on the left and right side walls of the inverted U-shaped opening groove with their rolling surfaces facing each other. The mechanism includes at least one pair of the aforementioned crane guiding devices, and each pair of crane guiding devices includes crane guiding devices respectively connected to the front and rear ends of the crane end beam. The device features a simple structure, stable operation, easy maintenance, good synchronization, and can significantly reduce wear on the wheels, effectively solving the problem of wear caused by wheel rut deviation in existing technologies.

Description

Technical Field

[0001] This utility model relates to the field of track walking technology, and in particular to a crane guiding device and mechanism. Background Technology

[0002] Please refer to the structure of existing gantry cranes. Figure 6 As shown, the crane includes a crane body 1', with end beams 2' connected to both ends of the crane body. Wheels are installed under the end beams, allowing the crane to run on a track. When the crane is running on the track, uneven contact between the wheels and the track often occurs due to track installation errors or equipment inherent defects, especially when the ruts deviate, resulting in more severe wear on one side of the wheels. Traditional solutions often involve adding limit wheel sets to the sidewalls of the I-beams or adding guide wheels to the crossbeams. However, this does not effectively solve the problem of poor synchronization between the wheels at both ends during startup and can even easily cause twisting and derailment during equipment startup, affecting operational efficiency and increasing equipment maintenance costs.

[0003] CN215208109U discloses a self-adjusting guiding device for a crane track traveling mechanism, which includes a base plate and two guiding units. The two guiding units are disposed on the same side of the base plate and are symmetrically arranged on both sides of the track during normal operation. Each guiding unit includes a mounting base, a guide wheel, and a spindle for mounting the guide wheel. The wheel surface of the guide wheel contacts the side of the track, and the rotation direction of the guide wheel is tangential to the length direction of the track. The guiding unit also includes a slide rail disposed on the mounting base, and the spindle slides within the slide rail to move closer to or away from the track. The mounting base is also provided with an elastic element to bring the spindle closer to the track. However, this prior art cannot prevent equipment deviation and rudder swerving.

[0004] CN211310586U provides a crane running guide device, including: a wheel axle slot with a "T"-shaped groove inside; a wheel axle, also "T"-shaped, embedded in the "T"-shaped groove of the wheel axle slot; two fixing knobs at both ends of the wheel axle slot and connected to the wheel axle; three brackets, one at the center above the wheel axle slot and two below the wheel axle slot; and a guide wheel fixed to the end of the wheel axle. However, the guide wheel of this prior art experiences uneven force distribution, which easily leads to wear. Utility Model Content

[0005] The purpose of this utility model is to provide a crane guiding device and mechanism, which has a simple structure, stable operation, easy maintenance, good synchronization, and can significantly reduce the wear of the wheels, effectively solving the problem of wear caused by easy deviation of the ruts in the prior art.

[0006] This utility model provides the following solution.

[0007] A crane guiding device includes a guide seat, which is generally rectangular in shape. The lower surface of the guide seat is provided with an inverted U-shaped opening groove along the front-back direction. At least two guide wheel sets are connected to the left and right side walls of the inverted U-shaped opening groove by pluggable pins. Each guide wheel set is arranged side by side along the front-back direction. Each guide wheel set includes two guide wheels respectively arranged on the left and right side walls of the inverted U-shaped opening groove with their rolling surfaces facing each other.

[0008] Furthermore, rectangular mounting holes are provided on both the left and right side walls of the inverted U-shaped opening groove. The mounting holes are through holes, and multiple guide wheels arranged in the front-back direction are pivotally connected in each mounting hole.

[0009] Each crane guide device contains at least two guide wheel sets, which can evenly distribute the force. Compared with setting a pair of guide wheels to bear all the force, the force on each guide wheel is reduced, thereby reducing local wear on the guide wheels and improving their service life.

[0010] Furthermore, each of the mounting holes has multiple pairs of shaft holes on its upper and lower end walls. Each pair of shaft holes includes an upper shaft hole and a lower shaft hole arranged opposite each other. Both the upper shaft hole and the lower shaft hole are through holes. Each guide wheel has a connecting hole at its center. The guide wheel is connected to the upper and lower end walls of the mounting hole by a pin. The pin is inserted into the upper shaft hole, the connecting hole and the lower shaft hole from top to bottom.

[0011] The use of pluggable pin connections makes the process of removing and replacing guide wheels simple and quick, without the need for complicated tools, thus improving the efficiency of equipment maintenance.

[0012] Furthermore, the pin is respectively fitted with the upper shaft hole, the connecting hole and the lower shaft hole with clearance; the top of the pin is provided with a shaft cap, which can stop on the upper end face of the guide seat; the lower part of the pin is provided with a threaded hole; the outer wall of the lower shaft hole is provided with a pin hole, which is a through hole; a screw is inserted into the pin hole; the screw can be threadedly connected to the threaded hole; the pin and the guide seat can be fixed by screwing the screw.

[0013] Furthermore, the upper and lower shaft holes on at least one side wall of the inverted U-shaped opening groove are both elliptical holes, and the major axes of the upper and lower shaft holes are arranged along the left and right directions of the guide seat. The pins sleeved in the upper and lower shaft holes can be displaced in the left and right directions within the upper and lower shaft holes.

[0014] This structure allows for adjustment of the distance between two opposing guide wheels by adjusting the position of the pin within the elliptical hole, thus accommodating guide rails of different widths and improving versatility.

[0015] Furthermore, the lower part of the pin shaft is provided with a threaded hole, and the outer wall of the lower shaft hole is provided with a pin hole. The pin hole is a through hole, and a screw is inserted into the pin hole. The screw can be threadedly connected to the threaded hole. An annular groove is provided near the outer end of the screw. A set screw threaded hole is provided on the lower surface of the guide seat directly below the pin hole. The set screw threaded hole communicates with the pin hole, and a set screw is threadedly connected inside the set screw threaded hole. The upper end of the set screw can be limited and slidably engaged in the annular groove.

[0016] The upper end of the set screw can be limited and slidably engaged in the annular groove, so that the threaded rod remains horizontal when it rotates, thereby allowing the pin to move horizontally in the left and right directions.

[0017] Furthermore, a pin hole is provided on the outer wall of the upper shaft hole, and a threaded fixing hole is provided on the inner wall of the upper shaft hole opposite to the pin hole. The threaded fixing hole can be threadedly connected to the pin. The connecting end of the pin is threaded, and the pin is sleeved in the pin hole. The other end of the pin is provided with a rod cap, which is exposed and stops against the outer wall of the upper shaft hole. The pin and the screw are arranged parallel to each other, and the upper part of the pin shaft is slidably sleeved on the middle part of the pin.

[0018] The connecting pin at the upper part of the pin shaft serves as a guide, preventing the upper part of the pin shaft from tilting when it is displaced or subjected to force, and also making the connection of the pin shaft more stable.

[0019] A crane guiding mechanism includes at least one pair of the above-described crane guiding devices, each pair of crane guiding devices including crane guiding devices respectively connected to the front and rear ends of the crane end beam.

[0020] Each crane is equipped with a crane guide device at least at the front and rear ends of one end beam to ensure smooth movement of the equipment and to correct the direction of the equipment's movement, preventing it from deviating from its intended path.

[0021] Furthermore, the rear end of the guide seat of the crane guide device is fixedly connected to the front or rear end of the crane end beam, and a stiffening plate is fixedly connected obliquely between the upper surface of the guide seat and the corresponding end face of the crane end beam.

[0022] Stiffening plates are used to reinforce the end beams and guide seats, making the connection between the two more stable and preventing deformation and damage during operation.

[0023] Furthermore, the rear end of the crane guide device is provided with a connecting plate, which is fixedly connected to the rear end of the guide seat and detachably connected to the front or rear end of the crane end beam; a stiffening plate is fixedly connected obliquely between the connecting plate and the upper surface of the guide seat.

[0024] This structure facilitates the disassembly and replacement of the heavy machinery guide device.

[0025] This utility model has the following advantages compared with the prior art:

[0026] Improved synchronization: The crane guide device installed at both ends of the end beam ensures the synchronization of the crane wheels at both ends, avoiding twisting and derailment during startup, and improving the operational stability of the equipment.

[0027] Reduce wheel wear: Multiple pairs of guide wheels make full contact with the track surface, evenly distributing the force on the wheels, significantly reducing local wear and extending the service life of the wheels.

[0028] Easy maintenance: The use of plug-in pin connection greatly simplifies the replacement and maintenance process of guide wheels, reduces the difficulty and cost of equipment maintenance, shortens downtime, and significantly improves the operating efficiency and equipment reliability of the crane. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Appendix Figure 1 This is a schematic diagram of the structure of the crane guiding device described in this utility model;

[0031] Appendix Figure 2 This is a schematic diagram of the structure of the guide seat described in this utility model;

[0032] Appendix Figure 3 This is a schematic diagram of the crane guiding device described in Embodiment 2 of this utility model;

[0033] Appendix Figure 4 This is a bottom view of the crane guide device described in Embodiment 2 of this utility model;

[0034] Appendix Figure 5 This is a partial structural schematic diagram of the crane guiding mechanism described in Embodiment 3 of this utility model;

[0035] Appendix Figure 6 This is a schematic diagram showing the position of the crane guide mechanism described in this utility model;

[0036] Appendix Figure 7 This is a schematic diagram showing the connection between the crane guide mechanism and the crane end beam described in this utility model;

[0037] Appendix Figure 8 This is a schematic diagram showing the positional relationship between the crane guiding device and the guide rail described in this utility model.

[0038] In the picture:

[0039] 1' Crane body; 2' End beam; 1. Crane guide device; 11. Guide seat; 111. Inverted U-shaped opening slot; 112. Mounting hole; 113. Upper shaft hole; 114. Lower shaft hole; 115. Pin hole; 116. Pin rod hole; 117. Set screw threaded hole; 12. Guide wheel assembly; 121. Guide wheel; 122. Connecting hole; 13. Pin shaft; 14. Screw; 15. Pin rod; 16. Set screw; 2. Stiffening plate; 3. Connecting plate. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0042] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0043] It should be understood that although the terms first, second, third, etc., may be used in the embodiments of this application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, first may also be referred to as second without departing from the scope of the embodiments of this application, and similarly, second may also be referred to as first.

[0044] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0045] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0046] It should be noted that any symbols and / or numbers present in the specification that are not marked in the accompanying drawings are not reference numerals.

[0047] Example 1, please refer to Figure 1 and Figure 2 As shown, this embodiment provides a crane guiding device 1, including a guide seat 11. The guide seat 11 is generally rectangular. The lower surface of the guide seat 11 is provided with an inverted U-shaped opening groove 111 along the front-back direction. At least two guide wheel sets 12 are pivotally connected to the left and right side walls of the inverted U-shaped opening groove 111. Each guide wheel set 12 includes two guide wheels 121 respectively disposed on the left and right side walls of the inverted U-shaped opening groove 111 and disposed opposite to each other. Each guide wheel set 12 is arranged side by side along the front-back direction.

[0048] Specifically, rectangular mounting holes 112 are provided on both the left and right side walls of the inverted U-shaped opening groove 111. The mounting holes 112 are through holes, and multiple guide wheels 121 arranged in the front-back direction are pivotally connected in each mounting hole 112. A weight-reducing hole is provided in the middle of the upper surface of the guide seat 11 to reduce the weight of the device.

[0049] Specifically, each mounting hole 112 has multiple shaft hole pairs on its upper and lower end walls. Each shaft hole pair includes an upper shaft hole 113 and a lower shaft hole 114 arranged opposite each other. Both the upper shaft hole 113 and the lower shaft hole 114 are through holes. Each guide wheel 121 has a connecting hole 122 at its center. Each guide wheel 121 is connected to the upper and lower end walls of the mounting hole 112 by a pin 13. The pin 13 is inserted into the upper shaft hole 113, the connecting hole 122 and the lower shaft hole 114 from top to bottom. The top of the pin 13 is provided with a shaft cap, which can stop on the upper end face of the guide seat 11. The lower part of the pin 13 is provided with a threaded hole. The outer wall of the lower shaft hole 114 is provided with a pin hole 115, which is a through hole. A screw 14 passes through the through hole and can be threaded into the threaded hole. The pin 13 and the guide seat 11 can be fixed by screwing the screw 14.

[0050] Please see Figures 6 to 8As shown, this embodiment also provides a crane guiding mechanism, including at least one pair of the above-mentioned crane guiding devices 1. The rear end of each crane guiding device 1 is fixedly connected to the front end or rear end of the end beam 2' of the crane by welding or other means. A stiffening plate 2 is fixedly connected obliquely between the end face of the end beam 2' of the crane and the upper surface of the guide seat 11 to reinforce the end beam 2' and the guide seat 11, making the connection between the two more stable and preventing deformation and damage during operation.

[0051] In use, two crane guide devices 1 are installed at the front and rear ends of each of the two end beams 2' of each crane, for a total of four. Each guide device confines the guide rail within the inverted U-shaped opening groove 111 to ensure smooth movement of the equipment and correct its running direction, preventing deviation. In this embodiment, each crane guide device 1 includes two guide wheel sets 12. The guide wheels 121 of each guide wheel set 12 are arranged in pairs on both sides of the crane rail. The contact surface height of the guide wheel set 12 matches the rail flange, and the rolling surface of each guide wheel 121 is in full contact with the rail flange. The distributed contact design allows for even distribution of force, reducing the stress on each guide wheel 121 compared to a pair of guide wheels 121 bearing all the force. This reduces localized wear on the guide wheels 121 and extends their service life. When the guide wheel 121 needs replacement or maintenance, simply unscrew the screw 14 and pull out the pin 13 for quick disassembly and replacement. Then, insert the pin 13 from top to bottom into the shaft hole aligning with the mounting hole 112, and finally connect and fix it with the screw 14 to complete the installation. The entire process is simple and quick, requiring no complicated tools and improving the efficiency of equipment maintenance.

[0052] Example 2, please refer to Figure 3 and Figure 4 As shown, this embodiment provides a crane guide device 1, which improves the structure of the shaft hole pair and the connection method of the pin 13 based on embodiment 1.

[0053] Specifically, the upper shaft hole 113 and lower shaft hole 114 on one side wall of the inverted U-shaped opening groove 111 are elliptical holes. The lower part of the pin 13 is provided with a threaded hole, and the outer wall of the lower shaft hole 114 is provided with a pin hole 115. The pin hole 115 is a through hole, and a screw 14 passes through the through hole. The screw 14 can be threadedly connected to the threaded hole. An annular groove is provided near the outer end of the screw 14. The lower surface of the guide seat 11 directly below the pin hole 115 is provided with a set screw threaded hole 117. The set screw threaded hole 117 communicates with the pin hole 115. A set screw 16 is threadedly connected to the set screw threaded hole 117. The upper end of the set screw 16 can be limited and slidably engaged. Within the annular groove, the threaded rod remains horizontal during rotation, allowing the pin 13 to move horizontally in the left-right direction. A pin hole 116 is provided on the outer wall of the upper shaft hole 113, and a threaded fixing hole is provided on the inner wall of the side opposite to the pin hole 116. The threaded fixing hole can be threadedly connected to the pin 15. The connecting end of the pin 15 is threaded, and the pin 15 is fitted into the pin hole 116. The other end of the pin 15 is provided with a rod cap, which is exposed and stops against the outer wall of the upper shaft hole 113. The pin 15 is arranged parallel to the screw 14, and the upper part of the pin 13 is slidably fitted onto the middle part of the pin 15.

[0054] This structure allows for adjustment of the distance between the two opposing guide wheels 121 by adjusting the position of the pin 13 within the elliptical hole, thus accommodating guide rails of different widths and improving versatility.

[0055] Example 3, please refer to Figure 5 and Figure 8 As shown, this embodiment also provides a crane guiding mechanism, including at least one pair of the above-mentioned crane guiding devices 1. A connecting plate 3 is provided at the rear end of each crane guiding device 1. The connecting plate 3 is fixedly connected to the rear end of the guide seat 11 and is used to connect with the crane end beam 2'. In this embodiment, the connecting plate 3 is connected to the front end or rear end of the crane end beam 2' by bolts. A stiffening plate 2 is fixedly connected obliquely between the connecting plate 3 and the upper surface of the guide seat 11 to reinforce the connecting plate 3 and the guide seat 11, making the connection between the two more stable and preventing deformation and damage during operation.

[0056] This structure facilitates the disassembly and replacement of the heavy machinery guide device.

[0057] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. Crane guide, characterized in that Includes a guide seat (11), which is a rectangular parallelepiped structure. The lower surface of the guide seat (11) is provided with an inverted U-shaped opening groove (111) along the front-back direction. At least two guide wheel sets (12) are connected to the left and right side walls of the inverted U-shaped opening groove (111) by pluggable pins (13). Each guide wheel set (12) is arranged side by side along the front-back direction. Each guide wheel set (12) includes two guide wheels (121) respectively arranged on the left and right side walls of the inverted U-shaped opening groove (111) with their rolling surfaces facing each other.

2. Crane guide according to claim 1, characterized in that The inverted U-shaped opening groove (111) has rectangular mounting holes (112) on both the left and right side walls. The mounting holes (112) are through holes, and each mounting hole (112) is pivotally connected to multiple guide wheels (121) arranged in the front-back direction.

3. Crane guide according to claim 2, characterized in that Each mounting hole (112) has multiple shaft hole pairs on its upper and lower end walls. Each shaft hole pair includes an upper shaft hole (113) and a lower shaft hole (114) arranged opposite to each other. Both the upper shaft hole (113) and the lower shaft hole (114) are through holes. Each guide wheel (121) has a connecting hole (122) at its center. The guide wheel (121) is connected to the upper and lower end walls of the mounting hole (112) by a pin (13). The pin (13) is inserted into the upper shaft hole (113), the connecting hole (122) and the lower shaft hole (114) from top to bottom.

4. Crane guide according to claim 3, characterized in that The pin (13) is respectively fitted with the upper shaft hole (113), the connecting hole (122) and the lower shaft hole (114) with clearance; the top of the pin (13) is provided with a shaft cap, which can stop on the upper end face of the guide seat (11); the lower part of the pin (13) is provided with a threaded hole; the outer wall of the lower shaft hole (114) is provided with a pin hole (115); the pin hole (115) is a through hole; a screw (14) is inserted in the pin hole (115); the screw (14) can be threadedly connected to the threaded hole; the pin (13) and the guide seat (11) can be fixed by screwing the screw (14).

5. The crane guiding device according to claim 3, characterized in that, The upper shaft hole (113) and lower shaft hole (114) on at least one side wall of the inverted U-shaped opening groove (111) are both elliptical holes. The major axis of the upper shaft hole (113) and lower shaft hole (114) is arranged along the left and right direction of the guide seat (11). The pin (13) sleeved in the upper shaft hole (113) and lower shaft hole (114) can be displaced in the left and right direction within the upper shaft hole (113) and lower shaft hole (114).

6. Crane guide according to claim 5, characterized in that The lower part of the pin (13) is provided with a threaded hole, and the outer wall of the lower shaft hole (114) is provided with a pin hole (115). The pin hole (115) is a through hole, and a screw (14) is inserted in the pin hole (115). The screw (14) can be threadedly connected to the threaded hole. An annular groove is provided near the outer end of the screw (14). The lower surface of the guide seat (11) directly below the pin hole (115) is provided with a set screw threaded hole (117). The set screw threaded hole (117) is connected to the pin hole (115). A set screw (16) is threadedly connected in the set screw threaded hole (117). The upper end of the set screw (16) can be limited and slidably engaged in the annular groove.

7. Crane guide according to claim 6, characterized in that The outer wall of the upper shaft hole (113) is provided with a pin hole (116). The inner wall of the upper shaft hole (113) opposite to the pin hole (116) is provided with a threaded fixing hole. The threaded fixing hole can be threadedly connected to the pin (15). The connecting end of the pin (15) is provided with a thread. The pin (15) is sleeved in the pin hole (116). The other end of the pin (15) is provided with a rod cap. The rod cap is exposed and stops against the outer wall of the upper shaft hole (113). The pin (15) is arranged parallel to the screw (14). The upper part of the pin shaft (13) is slidably sleeved on the middle part of the pin (15).

8. Crane guide mechanism, characterized in that It includes at least one pair of crane guide devices (1) as described in any one of claims 1-7, each pair of crane guide devices (1) including crane guide devices (1) respectively connected to the front and rear ends of the crane end beam.

9. Crane guide according to claim 8, characterized in that The rear end of the guide seat (11) of the crane guide device (1) is fixedly connected to the front end or rear end of the crane end beam, and a stiffening plate (2) is fixedly connected obliquely between the upper surface of the guide seat (11) and the corresponding end face of the crane end beam.

10. Crane guide mechanism according to claim 8, characterized in that The rear end of the crane guide device (1) is also provided with a connecting plate (3), which is fixedly connected to the rear end of the guide seat (11). The connecting plate (3) is detachably connected to the front end or rear end of the crane end beam. A stiffening plate (2) is fixedly connected obliquely between the connecting plate (3) and the upper surface of the guide seat (11).

Images