Low-clearance double-beam suspended trolley crane

Abstract

The invention discloses a low-clearance double-beam suspended trolley crane, and relates to the technical field of cranes, in particular to a low-clearance double-beam suspended trolley crane which comprises a supporting cross beam, a walking trolley is movably mounted in the supporting cross beam, a fixing plate is fixedly mounted on the lower surface of the interior of the walking trolley, and driving machines are symmetrically arranged on the inner wall of the walking trolley; positioning holes are symmetrically formed in the outer wall of the walking trolley, driving shafts are fixedly mounted at the ends of output shafts of the driving machines and penetrate through the positioning holes, driving wheels are fixedly mounted on the outer walls of the driving shafts, and mounting grooves are formed in the outer walls of the driving wheels. The side edges of the multiple driving wheel bodies are separated from the inner wall of the supporting cross beam, when the driving wheels drive the trolley to move horizontally, it can be effectively avoided that the driving wheels abrade the side face of a rail of the supporting cross beam while it is guaranteed that the walking trolley moves in a positioning mode, the service life of the device is prolonged, and the maintenance cost is reduced; and the use safety degree of the device can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of cranes, in particular to a low-headroom double-beam suspension trolley crane. Background Art

[0002] Double-beam suspended trolley crane is a bridge-type crane running on elevated tracks, also known as an overhead crane. It is mainly composed of a bridge, a trolley running mechanism, a trolley and electrical equipment. The bridge of the double-beam suspended trolley crane runs longitudinally along the tracks laid on the elevated tracks on both sides, while the lifting trolley runs horizontally along the tracks laid on the frame, forming a rectangular working range. This structure allows the crane to make full use of the space under the bridge for material lifting without being hindered by ground equipment. In general, double-beam suspended trolley cranes are widely used in indoor and outdoor warehouses, factories, docks and open storage yards, etc., and are one of the indispensable and important equipment in modern industrial production.

[0003] In the double-beam suspended trolley crane in the prior art, the driving wheel mechanism of the traveling trolley is in the process of rotating operation, and the driving wheel body is seriously worn on the inner wall side of the beam track, which will reduce the service life of the crane, increase maintenance costs, and cause serious safety accidents. The manufacturing deviation and slight deformation of the crane's beam track will cause the trolley driving wheel to not evenly contact the inner wall of the track, causing the trolley to deviate. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a low-headroom double-beam suspended trolley crane having the advantages of long service life, low maintenance cost and high safety level in use. It solves the problem that during the rotational operation of the driving wheel mechanism of the traveling trolley, the driving wheel body of the traveling trolley causes severe wear on the inner wall side of the beam track, which reduces the service life of the crane, increases maintenance costs and causes serious safety accidents. The manufacturing deviation and slight deformation of the beam track of the crane may cause the driving wheel of the trolley to fail to evenly contact the inner wall of the track, causing the trolley to run off track.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purposes of long service life, low maintenance cost and high safety in use, the present invention provides the following technical solution: it includes a supporting beam, a walking trolley is movably installed inside the supporting beam, a fixing plate is fixedly installed on the inner lower surface of the walking trolley, the inner wall of the walking trolley is symmetrically provided with driving machines, the outer wall of the walking trolley is symmetrically provided with positioning holes, the output shaft ends of multiple driving machines are fixedly installed with driving shafts and pass through the positioning holes, the outer walls of multiple driving shafts are fixedly installed with driving wheels, the outer walls of multiple driving wheels are provided with mounting grooves, the inner walls of multiple mounting grooves are fixedly installed with mounting disks, the inner walls of multiple mounting disks are fixedly installed with mounting sleeves, the inner walls of multiple mounting sleeves are slidably installed with mounting plates, the inner walls of multiple mounting plates are rotatably installed with pulleys, and the interiors of multiple mounting sleeves are provided with positioning springs.

[0008] Preferably, a receiving plate is symmetrically fixedly mounted on the upper surface of the supporting crossbeam, a positioning plate is fixedly connected to the upper surfaces of the two receiving plates, and a positioning slide rail is symmetrically fixedly mounted on the inner wall of the positioning plate.

[0009] Preferably, the outer surfaces of the two positioning slide rails are symmetrically and movably connected with guide wheels, the ends of the two guide wheels are symmetrically and rotatably connected with connecting plates, and the bottoms of the inner walls of the plurality of connecting plates are fixedly connected with rectangular plates.

[0010] Preferably, a mounting shaft is provided on the lower surface of one side of the plurality of connecting plates, a pressure plate is rotatably mounted on the outer surface of the plurality of mounting shafts, and a positioning ring is fixedly mounted on the upper surface of one side of the plurality of pressure plates.

[0011] Preferably, a limit spring is provided inside the plurality of positioning rings, an extension plate is fixedly mounted on the bottom of the outer wall of the plurality of pressure plates, and a mounting rod is symmetrically fixedly mounted on the inner wall of one side of the plurality of extension plates.

[0012] Preferably, a pressure wheel is rotatably mounted on the outer surface of the mounting rod, a support plate is fixedly mounted on the middle of the upper surface of the walking trolley, a positioning sleeve is fixedly mounted on the middle of the upper surface of the support plate, and a positioning block is fixedly mounted on the middle of the lower surface of the rectangular plate.

[0013] Preferably, a mounting block is symmetrically fixedly mounted on the lower surface of the fixing plate, a bottom plate is fixedly mounted on the lower surface of the mounting block, and a driver is provided on one side outer wall of the bottom plate.

[0014] Preferably, a steel wire rope is provided on the outer surface of the output shaft of the driver, a connecting cover is provided at the bottom end of the steel wire rope, and a hook is provided in the middle of the lower surface of the connecting cover.

[0015] Preferably, hanging plates are symmetrically fixedly installed on the outer surface of the supporting crossbeam, and the tops of a plurality of the hanging plates are fixedly connected with hanging plates.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a low-headroom double-beam suspension trolley crane, which has the following beneficial effects:

[0018] 1. The low-headroom double-beam suspended trolley crane, through the force of the positioning spring and the sliding connection cooperation between the mounting sleeve and the mounting plate, is used to drive multiple pulleys to maintain an expanded state and fit with the inner wall of the supporting beam. In actual use, the sides of multiple driving wheel bodies are separated from the inner wall of the supporting beam. When the driving wheel drives the walking trolley to move horizontally, while ensuring the positioning movement of the walking trolley, it can effectively avoid the driving wheel from causing wear on the side of the supporting beam track, thereby increasing the service life of the device, reducing maintenance costs, and effectively improving the safety of the device.

[0019] 2. The low-headroom double-beam suspended trolley crane is equipped with a support plate on the upper surface of the trolley, and the sliding connection of the positioning sleeve and the positioning block enables the trolley to synchronously drive the downward pressure mechanism to move during the movement. In actual use, when the supporting beam is slightly deformed due to long-term use, multiple driving wheels can maintain contact with the supporting beam track through the force of the downward pressure mechanism, which solves the problem of the trolley running off the track due to manufacturing deviation and slight deformation of the supporting beam, and has a higher level of safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional front view schematic diagram of a low-headroom double-beam suspension trolley crane structure proposed by the present invention;

[0021] Figure 2 A three-dimensional bottom view schematic diagram of a low-headroom double-beam suspension trolley crane structure proposed by the present invention;

[0022] Figure 3 A three-dimensional side view schematic diagram of a low-headroom double-beam suspension trolley crane structure proposed by the present invention;

[0023] Figure 4 A three-dimensional side cross-sectional schematic diagram of a low-headroom double-beam suspension trolley crane structure proposed by the present invention;

[0024] Figure 5 A three-dimensional cross-sectional schematic diagram of the driving wheel structure of the low-headroom double-beam suspension trolley crane proposed by the present invention;

[0025] Figure 6 It is a partial three-dimensional cross-sectional schematic diagram of the low-headroom double-beam suspension trolley crane structure proposed by the present invention;

[0026] Figure 7It is a partial three-dimensional side view schematic diagram of the low-headroom double-beam suspended trolley crane structure proposed by the present invention.

[0027] In the figure: 1. supporting beam; 2. walking trolley; 3. fixing plate; 4. driving machine; 5. positioning hole; 6. driving shaft; 7. driving wheel; 8. mounting groove; 9. mounting plate; 10. mounting sleeve; 11. mounting plate; 12. pulley; 13. positioning spring; 14. receiving plate; 15. positioning plate; 16. positioning slide rail; 17. guide wheel; 18. connecting plate; 19. rectangular plate; 20. mounting shaft; 21. pressure plate; 22. positioning ring; 23. limiting spring; 24. extension plate; 25. mounting rod; 26. pressure wheel; 27. supporting plate; 28. positioning sleeve; 29. ​​positioning block; 30. mounting block; 31. bottom plate; 32. driver; 33. wire rope; 34. connecting cover; 35. hook; 36. lifting plate; 37. hanging plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-7, including a supporting crossbeam 1, a walking trolley 2 is movably installed inside the supporting crossbeam 1, a fixing plate 3 is fixedly installed on the lower surface of the inside of the walking trolley 2, a driving machine 4 is symmetrically arranged on the inner wall of the walking trolley 2, a positioning hole 5 is symmetrically opened on the outer wall of the walking trolley 2, a plurality of driving machines 4 are fixedly installed with a driving shaft 6 on the end of the output shaft and penetrate the positioning hole 5, a plurality of driving shafts 6 are fixedly installed with a driving wheel 7 on the outer wall, a plurality of driving wheels 7 are opened with a mounting groove 8 on the outer wall, a plurality of mounting grooves 8 are fixedly installed with a mounting plate 9 on the inner wall, a plurality of mounting plates 9 are fixedly installed with a mounting sleeve 10 on the inner wall, a plurality of mounting sleeves 10 are slidably installed with a mounting plate 11, a plurality of mounting plates 11 are rotatably installed with a pulley 12 on the inner wall, and a plurality of mounting sleeves 10 are provided with a positioning spring inside 13, through the force of the positioning spring 13, and through the sliding connection cooperation of the mounting sleeve 10 and the mounting plate 11, it is used to drive multiple pulleys 12 to maintain the expanded state and fit with the inner wall of the supporting beam 1. In actual use, the sides of the multiple driving wheel 7 bodies are separated from the inner wall of the supporting beam 1. When the driving wheel 7 drives the walking trolley 2 to move horizontally, while ensuring the positioning and movement of the walking trolley 2, it can effectively avoid the driving wheel 7 from causing wear on the side of the track of the supporting beam 1, thereby increasing the service life of the device, reducing the maintenance cost, and effectively improving the safety of the device. The upper surface of the supporting beam 1 is symmetrically fixed with a receiving plate 14, and the upper surfaces of the two receiving plates 14 are fixedly connected with a positioning plate 15. The inner surface of the positioning plate 15 The wall is symmetrically fixed with positioning rails 16, the outer surfaces of the two positioning rails 16 are symmetrically and movably connected with guide wheels 17, the ends of the two guide wheels 17 are symmetrically and rotatably connected with connecting plates 18, the inner wall bottoms of the multiple connecting plates 18 are fixedly connected with rectangular plates 19, the lower surfaces of one side of the multiple connecting plates 18 are provided with mounting shafts 20, the outer surfaces of the multiple mounting shafts 20 are rotatably installed with pressure plates 21, the upper surfaces of one side of the multiple pressure plates 21 are fixedly installed with positioning rings 22, and the interiors of the multiple positioning rings 22 are provided with limit springs 23, the outer wall bottoms of the multiple pressure plates 21 are fixedly installed with extension plates 24, the inner walls of one side of the multiple extension plates 24 are symmetrically and rotatably fixed with mounting rods 25, the outer surface of the mounting rods 25 is rotatably installed with a pressure wheel 26, and the middle part of the upper surface of the walking trolley 2 is fixedly installed There is a support plate 27, a positioning sleeve 28 is fixedly installed in the middle of the upper surface of the support plate 27, a positioning block 29 is fixedly installed in the middle of the lower surface of the rectangular plate 19, a mounting block 30 is symmetrically fixedly installed on the lower surface of the fixed plate 3, a bottom plate 31 is fixedly installed on the lower surface of the mounting block 30, a driver 32 is provided on the outer wall of one side of the bottom plate 31, a steel wire rope 33 is provided on the outer surface of the output shaft of the driver 32, a connecting cover 34 is provided at the bottom end of the steel wire rope 33, a hook 35 is provided in the middle of the lower surface of the connecting cover 34, a hanging plate 36 is symmetrically fixedly installed on the outer surface of the supporting crossbeam 1, and a plurality of hanging plates 36 are fixedly connected with a hanging plate 37 on the top, by arranging the support plate 27 on the upper surface of the walking trolley 2, and by the sliding connection cooperation of the positioning sleeve 28 and the positioning block 29,The walking trolley 2 can synchronously drive the pressing mechanism to move during the movement. In actual use, when the supporting beam 1 is slightly deformed after long-term use, the multiple driving wheels 7 can maintain a state of constant contact with the track of the supporting beam 1 through the force of the pressing mechanism, solving the problem of the walking trolley 2 running off due to manufacturing deviation and slight deformation of the supporting beam 1, and having a higher degree of safety.

[0030] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0031] When in use, first fix the hanging plate 37 with the matching crane main beam driving mechanism to drive the supporting beam 1 to move along the main beam, and set a mounting block 30 on the lower surface of the fixing plate 3 to fix the bottom plate 31, and set a driver 32 on the outer wall of the bottom plate 31 to drive the winding drum to rotate for retracting and releasing the wire rope 33, and synchronously drive the connecting cover 34 and the hook 35 to move up and down to realize the lifting of the goods at the bottom of the device, and set a lifting plate 36 at the bottom of the hanging plate 37 to lift the supporting beam 1, and set a walking trolley 2 inside the supporting beam 1, so that the walking trolley 2 and the supporting beam 1 maintain parallel sliding cooperation with each other, so as to drive the lifting mechanism at the bottom of the device to move the position, and then A fixing plate 3 is provided at the bottom of the walking trolley 2 for receiving and fixing a plurality of driving machines 4. The plurality of driving machines 4 are distributed in a rectangular array and are located in the same horizontal plane. By starting the plurality of driving machines 4 and cooperating with the positioning holes 5 and the driving shaft 6 for positioning connection, the driving wheels 7 are driven to rotate. The plurality of driving wheels 7 are in contact with the inner lower surface of the supporting beam 1 and are used to drive the walking trolley 2 to move horizontally along the supporting beam 1. In this process, mounting grooves 8 are provided on the outer walls of the plurality of driving wheels 7 for mounting and fixing the mounting plate 9. A plurality of mounting sleeves 10 are provided inside the mounting plate 9. The plurality of mounting sleeves 10 are distributed in a ring array and are supported and positioned on the pulley 12 through the cooperation of the mounting plate 11. The positioning spring 13 is used to fix the mounting plate 9. The force is exerted on the guide wheel 17 by the sliding connection of the mounting sleeve 10 and the mounting plate 11, which is used to drive the multiple pulleys 12 to maintain the expanded state and fit with the inner wall of the supporting beam 1. A receiving plate 14 is provided on the upper surface of the supporting beam 1, and the two receiving plates 14 are located in the same horizontal plane, which is used to support and position the positioning plate 15 so that the positioning plate 15 and the supporting beam 1 remain parallel to each other. A positioning slide rail 16 is provided on the inner wall of the positioning plate 15 to clamp and position the guide wheel 17 so that the guide wheel 17 can roll along the inner wall of the positioning plate 15. A connecting plate 18 is provided at the end of the guide wheel 17, and the guide wheels 17 are fixedly connected to each other through a rectangular plate 19. A mounting shaft 20 is provided on the lower surface of the multiple connecting plates 18 to control the movement of the pressure plate 21. The support is provided by setting a positioning ring 22 on the upper surface of the pressure plate 21, and the force of the limit spring 23 is used to drive the pressure plate 21 to maintain the downward pressure state, and by setting an extension plate 24 at the end of the plurality of pressure plates 21, the bottom of the plurality of extension plates 24 is arranged in an arc shape, and corresponds to the plurality of driving wheels 7 one by one, and by setting a mounting rod 25 on the inner wall of the extension plate 24, it is used to support and position the plurality of pressure wheels 26, and the plurality of pressure wheels 26 are distributed in an arc array and fit with the driving wheel 7. In the process of the plurality of driving wheels 7 driving the walking trolley 2 to move, the plurality of pressure wheels 26 can be pressed down and fit with the driving wheel 7. At the same time, a support plate 27 is provided on the upper surface of the walking trolley 2, and the sliding connection cooperation of the positioning sleeve 28 and the positioning block 29 is carried out.The walking trolley 2 can synchronously drive the pressing mechanism to move during the movement.

[0032] In summary, in the low-headroom double-beam suspended trolley crane, multiple driving wheels 7 are in contact with the inner lower surface of the supporting beam 1, so as to drive the walking trolley 2 to move horizontally along the supporting beam 1. In this process, mounting grooves 8 are provided on the outer walls of the multiple driving wheels 7 for fixing the mounting plate 9, and multiple mounting sleeves 10 are provided inside the mounting plate 9. The multiple mounting sleeves 10 are distributed in a ring array, and the support and positioning of the pulley 12 are achieved through the cooperation of the mounting plate 11. Through the force of the positioning spring 13 and the sliding connection and cooperation between the mounting sleeve 10 and the mounting plate 11, the multiple pulleys 12 are driven to maintain the expanded state and fit with the inner wall of the supporting beam 1. In actual use, the side edges of the multiple driving wheel 7 bodies are separated from the inner wall of the supporting beam 1. When the driving wheel 7 drives the walking trolley 2 to move horizontally, while ensuring the positioning and movement of the walking trolley 2, it can effectively prevent the driving wheel 7 from causing wear on the side of the track of the supporting beam 1. The utility model discloses a kind of utility model discloses a kind of utility model, and the utility model discloses a utility model. The utility model discloses a utility model. The utility model discloses a utility model. The utility model discloses a utility model. The utility model discloses a utility model. The utility model discloses a utility model. The utility model discloses a utility model. The utility model discloses a utility model. The utility model discloses a utility model. The utility model discloses a utility model discloses a utility model. The utility model discloses a utility model discloses a utility model. The utility model discloses a utility model discloses a utility model.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise one" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low headroom double-beam suspension trolley crane, comprising a supporting beam (1), characterized in that: A walking trolley (2) is movably mounted inside the supporting crossbeam (1), a fixing plate (3) is fixedly mounted on the lower surface of the inside of the walking trolley (2), a driving machine (4) is symmetrically mounted on the inner wall of the walking trolley (2), a positioning hole (5) is symmetrically opened on the outer wall of the walking trolley (2), a plurality of driving shafts (6) are fixedly mounted on the ends of the output shafts of the driving machines (4) and penetrate the positioning holes (5), a plurality of driving wheels (7) are fixedly mounted on the outer walls of the plurality of driving shafts (6), a plurality of mounting grooves (8) are opened on the outer walls of the plurality of driving wheels (7), a plurality of mounting plates (9) are fixedly mounted on the inner walls of the plurality of mounting grooves (8), a plurality of mounting sleeves (10) are fixedly mounted on the inner walls of the plurality of mounting sleeves (10), a plurality of mounting plates (11) are slidably mounted on the inner walls of the plurality of mounting sleeves (10), a plurality of pulleys (12) are rotatably mounted on the inner walls of the plurality of mounting plates (11), and a plurality of positioning springs (13) are arranged inside the plurality of mounting sleeves (10).

2. The low headroom double-beam suspension trolley crane according to claim 1, characterized in that: A receiving plate (14) is symmetrically fixedly mounted on the upper surface of the supporting crossbeam (1), a positioning plate (15) is fixedly connected to the upper surfaces of the two receiving plates (14), and a positioning slide rail (16) is symmetrically fixedly mounted on the inner wall of the positioning plate (15).

3. The low headroom double-beam suspension trolley crane according to claim 2, characterized in that: The outer surfaces of the two positioning slide rails (16) are symmetrically and movably connected with guide wheels (17), the ends of the two guide wheels (17) are symmetrically and rotatably connected with connecting plates (18), and the inner wall bottoms of the plurality of connecting plates (18) are fixedly connected with rectangular plates (19).

4. The low headroom double-beam suspension trolley crane according to claim 3, characterized in that: A mounting shaft (20) is provided on the lower surface of one side of the plurality of connecting plates (18), a pressing plate (21) is rotatably mounted on the outer surface of the plurality of mounting shafts (20), and a positioning ring (22) is fixedly mounted on the upper surface of one side of the plurality of pressing plates (21).

5. The low headroom double-beam suspension trolley crane according to claim 4, characterized in that: A limit spring (23) is provided inside the plurality of positioning rings (22), an extension plate (24) is fixedly mounted on the bottom of the outer wall of the plurality of pressure plates (21), and a mounting rod (25) is symmetrically fixedly mounted on the inner wall of one side of the plurality of extension plates (24).

6. The low headroom double-beam suspension trolley crane according to claim 5, characterized in that: A pressure wheel (26) is rotatably mounted on the outer surface of the mounting rod (25), a support plate (27) is fixedly mounted in the middle of the upper surface of the walking trolley (2), a positioning sleeve (28) is fixedly mounted in the middle of the upper surface of the support plate (27), and a positioning block (29) is fixedly mounted in the middle of the lower surface of the rectangular plate (19).

7. The low headroom double-beam suspension trolley crane according to claim 1, characterized in that: A mounting block (30) is symmetrically fixedly mounted on the lower surface of the fixing plate (3), a bottom plate (31) is fixedly mounted on the lower surface of the mounting block (30), and a driver (32) is provided on one side outer wall of the bottom plate (31).

8. The low headroom double-beam suspension trolley crane according to claim 7, characterized in that: A steel wire rope (33) is provided on the outer surface of the output shaft of the driver (32), a connecting cover (34) is provided at the bottom end of the steel wire rope (33), and a hook (35) is provided in the middle of the lower surface of the connecting cover (34).

9. The low headroom double-beam suspension trolley crane according to claim 1, characterized in that: The outer surface of the supporting crossbeam (1) is symmetrically fixedly mounted with hanging plates (36), and the tops of a plurality of the hanging plates (36) are fixedly connected with hanging plates (37).

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