Crane beam for crane

Abstract

The invention relates to the technical field of crane beams, in particular to a crane beam for a crane, which comprises a fixed beam and a walking beam, traction mechanisms are mounted at two ends of the fixed beam, walking frames are fixedly connected to two ends of the walking beam, through grooves are formed in the walking frames, rollers are arranged in the through grooves, and the walking frames horizontally move along the fixed beam through the rollers. A through groove is formed in the walking frame, a vertical first limiting groove is formed in the through groove, rotating shafts are fixedly connected to the two sides of the rolling wheel and located in the first limiting groove, a leakage groove matched with the through groove is formed in one end of the fixed beam, and a second limiting groove matched with the first limiting groove is formed in the leakage groove. Compared with the prior art, according to the technical scheme, the lubricating and dismounting efficiency of the roller is simplified, and the maintenance efficiency of the crane beam is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of crane beams, and in particular to a crane beam used for a crane. Background Art

[0002] A crane is a type of transportation equipment that lifts and moves heavy objects. Most of the time, electric hoists are used for rail transportation along the crane beam. The crane beam basically consists of two parallel fixed beams and a traveling beam that moves along the fixed beams. The electric hoist is generally installed on the traveling beam and is transported along the traveling beam.

[0003] In the existing crane beam, rollers are installed between the walking beam and the fixed beam. The walking beam can move along the fixed beam by rotating the rollers through a motor or by arranging traction devices such as winches at both ends of the fixed beam. The use of traction devices such as winches places strict requirements on the friction between the rollers and the fixed beam, so the rollers need to be lubricated regularly and replaced regularly after being worn. However, most traditional rollers are rotatably connected to the walking beams through bearings, and the installation of the rollers and the walking wheels is completed by fixing parts such as screws. Therefore, it is difficult to disassemble the rollers, which makes the lubrication and replacement of the rollers more complicated, resulting in low maintenance efficiency of the crane beams.

[0004] Therefore, it is necessary to propose a crane beam for a crane to improve the maintenance efficiency of the crane beam. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that it is difficult to disassemble the rollers of the existing crane beam, resulting in low maintenance efficiency of the crane beam. A crane beam for a crane is now provided.

[0006] The technical solution of the present invention is: A crane beam for a crane comprises a fixed beam and a traveling beam, wherein traction mechanisms are installed at both ends of the fixed beam, and traveling frames are fixedly connected at both ends of the traveling beam, and the traveling frames are provided with through grooves, and rollers are arranged in the through grooves, and the traveling frames move horizontally along the fixed beams through the rollers, and a vertical first limiting groove is arranged in the through grooves, and a rotating shaft is fixedly connected at both sides of the rollers, and the rotating shaft is located in the first limiting grooves, and a leakage groove matching the through groove is arranged at one end of the fixed beam, and a second limiting groove matching the first limiting groove is arranged in the leakage groove, and when the traveling frame moves until the through groove is aligned with the leakage groove, the first limiting groove is butted and connected with the second limiting groove; A lubrication groove is provided at the other end of the fixed beam, and lubricating oil is provided in the lubrication groove. Both ends of the lubrication groove are inclined surfaces, and the roller enters and exits the lubrication groove along the inclined surfaces. The two sides of the roller are provided with flow guides coaxial therewith, one end of the flow guide is fixedly connected to the wheel surface of the roller, and the other end of the flow guide is fixedly connected to the rotating shaft.

[0007] Furthermore, a cavity is provided inside the roller, and oil storage cotton is provided in the cavity. An oil suction hole is opened on the wheel surface of the roller, and an oil outlet hole is opened on the rotating shaft along its axis. The oil suction hole and the oil outlet hole are both connected with the cavity, and the oil storage cotton extends into the oil outlet hole and the oil suction hole respectively.

[0008] Furthermore, the flow guide is in a truncated cone shape.

[0009] Furthermore, an oil return groove is provided on the fixed beam, and the oil return groove is located on both sides of the traveling frame and is connected with the bottom of the lubrication groove.

[0010] Furthermore, a filter tank is provided in the oil return tank, the filter tank runs through one end of the fixed beam to the other end thereof, and a filter element is provided in the oil return tank.

[0011] Furthermore, the filter element includes a support frame and filter cotton, the filter cotton is located in the support frame, and the support frame is slidably connected to the oil return groove.

[0012] Furthermore, the traction mechanism is a winch, and the winch moves the walking beam by pulling the wire rope.

[0013] Furthermore, four rollers arranged side by side are arranged in each through groove.

[0014] Furthermore, a push plate matching the size of the drain groove is provided in the drain groove, and a limiting column is provided on the push plate to separate the rollers. The limiting column is made of a deformable flexible material, and the push plate is detachably connected to the drain groove.

[0015] Furthermore, the push plate is slidably connected to the drain groove, and two support columns are respectively provided at both ends of the drain groove.

[0016] The present invention provides a crane beam for a crane, wherein the roller installed on the traveling frame can roll along the fixed beam, so that the traveling beam can move along the fixed beam. When the roller needs lubrication, the traction mechanism drives the roller to move to the lubrication groove. Since the rotating shaft is in the first limiting groove, when the roller moves along the inclined surface, the rotating shaft will slide downward along the first limiting groove under the influence of its own gravity, and the roller will move out of the through groove, enter the lubrication groove and be immersed in oil for lubrication. When the oil immersion is completed, the traction mechanism pulls the traveling frame back, and the roller moving in the opposite direction moves in the opposite direction along the inclined surface. At this time, the inclined surface exerts an upward supporting force on the roller, so that the rotating shaft moves upward along the first limiting groove, and the roller returns to the through groove, thereby completing lubrication and reducing the friction between the roller and the fixed beam. The entire lubrication process does not require manual oiling and lubrication of the roller. The mechanism pulls the roller into the lubrication groove to complete lubrication, thereby improving the lubrication efficiency. The guide piece can guide the excess lubricating oil on the wheel surface to the rotating shafts at both ends of the roller as the roller rotates, thereby playing a role in lubricating the rotating shafts. When the roller is severely worn after being used for a period of time and needs to be replaced, the traction mechanism pulls the walking frame to the leakage groove. Since the first limiting groove and the second limiting groove match and are aligned, when the through groove is aligned with the leakage groove, the rotating shafts at both ends of the roller slide from the first limiting groove to the second limiting groove, and the roller moves from the through groove to the leakage groove and falls out, completing the disassembly of the roller. The disassembly process of the roller does not require disassembly of the fixed beam and the walking beam, which is simple and quick, and improves the disassembly efficiency of the roller. Compared with traditional technology, this technical solution simplifies the lubrication and disassembly efficiency of the roller, and greatly improves the maintenance efficiency of the crane beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural reference diagram of the present invention; Figure 2 It is a left side view of the present invention; Figure 3 For the present invention Figure 1 A partial enlarged view of the middle part; Figure 4 For the present invention Figure 1 A partial enlarged view of point B in the middle; Figure 5 It is a structural diagram of the walking frame of the present invention; Figure 6 This is a structural diagram of the roller of the present invention; Figure 7 is a cross-sectional view of the roller of the present invention; Figure 8 This is a structural diagram of the push plate of the present invention; Fig. 9 It is a reference diagram of the lubrication state of the present invention; Fig.10 This is a flow chart of roller replacement according to the present invention.

[0018] Figure numerals: 1. fixed beam; 2. walking beam; 3. traction mechanism; 4. walking frame; 5. through groove; 6. roller; 7. first limiting groove; 8. rotating shaft; 9. leakage groove; 10. second limiting groove; 11. lubrication groove; 12. inclined plane; 13. guide piece; 14. oil storage cotton; 15. oil suction hole; 16. oil outlet hole; 17. oil return groove; 18. filter element; 19. support frame; 20. filter cotton; 21. push plate; 22. limiting column; 23. filter groove; 24. support column. DETAILED DESCRIPTION

[0019] In order to make the technical means, technical features, invention objectives and technical effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific illustrations.

[0020] Embodiment 1: like Figure 1 and Figure 2 As shown, this embodiment provides a crane beam for a crane, comprising a fixed beam 1 and a traveling beam 2, a traction mechanism 3 is installed at both ends of the fixed beam 1, and a traveling frame 4 is fixedly connected to both ends of the traveling beam 2 by screws, as shown in FIG. Figure 5 As shown, the walking frame 4 is provided with a through slot 5, and a roller 6 is arranged in the through slot 5. The walking frame 4 moves horizontally along the fixed beam 1 through the roller 6. A vertical first limiting slot 7 is arranged in the through slot 5. The two sides of the roller 6 are fixedly connected with a rotating shaft 8 by screws. The rotating shaft 8 is located in the first limiting slot 7. Figure 4 As shown, one end of the fixed beam 1 is provided with a leakage groove 9 matching the through groove 5, and a second limiting groove 10 matching the first limiting groove 7 is provided in the leakage groove 9. When the walking frame 4 moves until the through groove 5 is aligned with the leakage groove 9, the first limiting groove 7 is connected to the second limiting groove 10. Figure 3 As shown, the other end of the fixed beam 1 is provided with a lubrication groove 11, in which lubricating oil is provided, and both ends of the lubrication groove 11 are inclined surfaces 12, and the roller 6 enters and exits the lubrication groove 11 along the inclined surfaces 12, as shown in FIG. Figure 6 As shown, on both sides of the roller 6 there are coaxial guide members 13 , one end of the guide member 13 is welded to the wheel surface of the roller 6 , and the other end of the guide member 13 is welded to the rotating shaft 8 .

[0021] Preferably, Figure 7As shown, the roller 6 is provided with a cavity inside, and the cavity is filled with oil storage cotton 14, the wheel surface of the roller 6 is provided with an oil suction hole 15, and the rotating shaft 8 is provided with an oil outlet hole 16 along its axis, the oil suction hole 15 and the oil outlet hole 16 are both connected with the cavity, and the oil storage cotton 14 extends into the oil outlet hole 16 and the oil suction hole 15 respectively. When the roller 6 is immersed in the lubricating oil, the oil storage cotton 14 can absorb the lubricating oil entering through the oil suction hole 15, and after the roller 6 leaves the lubrication groove 11, as the roller 6 rotates, the lubricating oil on the wheel surface of the roller 6 can also The lubricating oil in the oil storage cotton 14 can enter into the oil storage cotton 14, on the one hand, preventing too much lubricating oil from staying on the wheel surface of the roller 6 and the fixed beam 1, avoiding leakage and waste of lubricating oil; on the other hand, the lubricating oil in the oil storage cotton 14 can enter into the rotating shaft 8 through the oil outlet hole 16, play the role of lubricating the rotating shaft 8, cooperate with the guide member 13 to realize the lubrication of the rotating shaft 8, and improve the lubrication effect of the rotating shaft 8. Preferably, the guide member 13 is a truncated cone, and the truncated cone-shaped guide member 13 has a higher flow guiding performance, which ensures that the lubricating oil can be smoothly guided to the rotating shaft 8.

[0022] Preferably, Figure 1 As shown, an oil return groove 17 is opened on the fixed beam 1, and the oil return groove 17 is located on both sides of the walking frame 4 and is connected with the bottom of the lubrication groove 11. When the roller 6 comes out of the lubrication groove 11, it is inevitable that part of the lubricating oil will be brought out from the lubrication groove 11 and retained on the fixed beam 1. The oil return groove 17 can realize the recovery of the lubricating oil to ensure the cleanliness of the surface of the fixed beam 1. The oil return groove 17 is connected with the bottom of the lubrication groove 11, and the lubricating oil in the lubrication groove 11 can flow back into the lubrication groove 11 to realize secondary utilization.

[0023] Preferably, Figure 3 As shown, a filter groove 23 is provided in the oil return groove 17, and the filter groove 23 runs through one end of the fixed beam 1 to the other end thereof. A filter element 18 is provided in the oil return groove 17. Preferably, the filter element 18 includes a support frame 19 and filter cotton 20. The filter cotton 20 is located in the support frame 19, and the support frame 19 is slidably connected to the oil return groove 17. The filter element 18 can filter the lubricating oil refluxed in the oil return groove 17 to prevent impurities from entering the lubrication groove 11 and the oil return groove 17 to cause blockage. Since the oil return groove 17 is too long and runs through both ends of the fixed beam 1, the filter cotton 20 is a flexible material and is not convenient to be installed in the oil return groove 17. The support frame 19 can provide protection for the filter cotton 20 to prevent the filter cotton 20 from deformation. It is made of hard materials such as metal, so that the filter element 18 can be smoothly inserted into the oil return groove 17.

[0024] Preferably, the traction mechanism 3 is a winch, which pulls the walking beam 2 to move by a wire rope. The traction mechanism 3 can also adopt other mechanisms with traction function to realize the movement of the walking beam 2. Since the traction mechanism 3 adopts the existing technology, technical personnel in this field can choose the type of traction mechanism 3 according to actual conditions, which will not be repeated here.

[0025] Preferably, Figure 5 As shown, four rollers 6 are arranged side by side in each through slot 5 , and the number of rollers 6 can be three, five, six or more.

[0026] Preferably, Figure 8 As shown, a push plate 21 matching the size of the drain groove 9 is provided in the drain groove 9, and a limit column 22 is provided on the push plate 21 to separate the roller 6. The limit column 22 is a deformable flexible material. Fig.10 As shown, the limit column 22 can be elastically deformed. Preferably, the limit column 22 is made of rubber or nylon. Two support columns 24 are respectively provided at both ends of the drain groove 9. When the old roller 6 falls out of the drain groove 9, the support column 24 can provide support for the walking frame 4. The push plate 21 is slidably connected to the drain groove 9 and the push plate 21 can be removed from the drain groove 9. When replacing a new roller 6, Fig.10 At ①, the old roller 6 has fallen out of the leakage groove 9. At this time, the new roller 6 is distributed according to the roller 6 distribution pattern of the through groove 5, such as Fig.10 ②, placed on the push plate 21, the limit column 22 is used to limit the position of each roller 6 to prevent movement, such as Fig.10 ③, and then push the push plate 21 upward from the bottom of the leakage groove 9. When the push plate 21 moves to the top of the leakage groove 9, the push plate 21 is flush with the top opening of the leakage groove 9, and the roller 6 on the push plate 21 has entered the through groove 5 of the walking frame 4, and the rotating shafts 8 at both ends of the roller 6 enter the first limit groove 7. Fig.10 At ④, as the walking frame 4 leaves the leakage groove 9, the new roller 6 remains in the through groove 5. At this point, the new roller 6 is replaced. At this time, the push plate 21 can be removed from the leakage groove 9. Since the limiting column 22 is a flexible material that can be elastically deformed, the limiting column 22 will be squeezed and deformed when the walking frame 4 moves, so it will not block or interfere with the movement of the walking frame 4. When the walking frame 4 completely leaves the leakage groove 9, the limiting column 22 will rebound and return to its original shape, without affecting the secondary use.

[0027] When working, Figure 1 As shown, the roller 6 installed on the walking frame 4 can roll along the fixed beam 1, so that the walking beam 2 can move along the fixed beam 1. When the roller 6 needs to be lubricated, as shown in FIG. Fig. 9As shown, the traction mechanism 3 drives the roller 6 to move to the lubrication groove 11. Since the rotating shaft 8 is in the first limiting groove 7, when the roller 6 moves along the inclined surface 12, the rotating shaft 8 will slide downward along the first limiting groove 7 due to its own gravity, and the roller 6 moves out of the through groove 5, enters the lubrication groove 11 and is immersed in oil for lubrication. After the oil immersion is completed, the traction mechanism 3 pulls the walking frame 4 back, and the roller 6 moving in the opposite direction moves in the opposite direction along the inclined surface 12. At this time, the inclined surface 12 exerts an upward supporting force on the roller 6, so that the rotating shaft 8 moves upward along the first limiting groove 7, and the roller 6 returns to the through groove 5, thereby completing the lubrication. The entire lubrication process does not require manual oiling and lubrication of the roller 6. The lubrication can be completed by pulling the roller 6 to the lubrication groove 11 by the traction mechanism 3, thereby improving the lubrication efficiency. Fig.10 As shown, Fig.10 At ①, when the roller 6 is worn out after a period of use and needs to be replaced, the traction mechanism 3 pulls the walking frame 4 to the drain groove 9. Since the first limit groove 7 and the second limit groove 10 match and align, when the through groove 5 is aligned with the drain groove 9, Fig.10 At ②, the rotating shaft 8 at both ends of the roller 6 slides from the first limiting groove 7 to the second limiting groove 10, and the roller 6 moves from the through groove 5 to the leakage groove 9 and falls out, completing the disassembly of the roller 6. The disassembly process of the roller 6 does not require disassembly of the fixed beam 1 and the walking beam 2, which is simple and fast, and improves the disassembly efficiency of the roller 6. Compared with the traditional technology, the technical solution simplifies the lubrication and disassembly efficiency of the roller 6, and greatly improves the maintenance efficiency of the crane beam.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the content of the patent application scope of the present invention should belong to the technical scope of the present invention.

Claims

1. A crane beam for a crane, comprising a fixed beam (1) and a traveling beam (2), wherein traction mechanisms (3) are installed at both ends of the fixed beam (1), and traveling frames (4) are fixedly connected at both ends of the traveling beam (2), wherein the traveling frame (4) is provided with a through groove (5), and a roller (6) is arranged in the through groove (5), and the traveling frame (4) moves horizontally along the fixed beam (1) via the roller (6), and is characterized in that: A vertical first limiting groove (7) is provided in the through groove (5), a rotating shaft (8) is fixedly connected to both sides of the roller (6), the rotating shaft (8) is located in the first limiting groove (7), one end of the fixed beam (1) is provided with a drain groove (9) matching the through groove (5), and a second limiting groove (10) matching the first limiting groove (7) is provided in the drain groove (9), and when the walking frame (4) moves until the through groove (5) is aligned with the drain groove (9), the first limiting groove (7) and the second limiting groove (10) are butt-jointed and connected; A lubrication groove (11) is provided at the other end of the fixed beam (1), and lubrication oil is provided in the lubrication groove (11). Both ends of the lubrication groove (11) are inclined surfaces (12), and the roller (6) enters and exits the lubrication groove (11) along the inclined surfaces (12); Coaxial flow guides (13) are provided on both sides of the roller (6); one end of the flow guide (13) is fixedly connected to the wheel surface of the roller (6); and the other end of the flow guide (13) is fixedly connected to the rotating shaft (8).

2. The crane beam for a crane according to claim 1, characterized in that: A cavity is provided inside the roller (6), and oil storage cotton (14) is provided in the cavity. An oil suction hole (15) is provided on the wheel surface of the roller (6), and an oil outlet hole (16) is provided on the rotating shaft (8) along its axis. The oil suction hole (15) and the oil outlet hole (16) are both connected to the cavity, and the oil storage cotton (14) extends into the oil outlet hole (16) and the oil suction hole (15), respectively.

3. The crane beam for a crane according to claim 1, characterized in that: The flow guide (13) is in the shape of a truncated cone.

4. The crane beam for a crane according to claim 1, characterized in that: An oil return groove (17) is provided on the fixed beam (1), and the oil return groove (17) is located on both sides of the traveling frame (4) and is connected to the bottom of the lubrication groove (11).

5. The crane beam for a crane according to claim 4, characterized in that: A filter groove (23) is provided in the oil return groove (17). The filter groove (23) runs through one end of the fixed beam (1) to the other end thereof. A filter element (18) is provided in the oil return groove (17).

6. The crane beam for a crane according to claim 5, characterized in that: The filter element (18) comprises a support frame (19) and filter cotton (20), the filter cotton (20) is located in the support frame (19), and the support frame (19) is slidably connected to the oil return groove (17).

7. The crane beam for a crane according to claim 1, characterized in that: The traction mechanism (3) is a winch, and the winch pulls the walking beam (2) to move by means of a steel wire rope.

8. The crane beam for a crane according to claim 1, characterized in that: Four rollers (6) arranged side by side are arranged in each through groove (5).

9. The crane beam for a crane according to claim 1, characterized in that: A push plate (21) having a size matching that of the drain groove (9) is arranged in the drain groove (9), and a limit column (22) is arranged on the push plate (21) for separating the rollers (6). The limit column (22) is made of a deformable flexible material, and the push plate (21) is detachably connected to the drain groove (9).

10. The crane beam for a crane according to claim 9, characterized in that: The push plate (21) is slidably connected to the drain groove (9), and two support columns (24) are respectively provided at two ends of the drain groove (9).

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