Double-keel portal frame

Abstract

The utility model provides a double-keel portal frame, and relates to the field of portal frames. Comprising a door frame body, the door frame body comprises two bottom beams, longitudinal beams and a plurality of door frames, and the two bottom beams are oppositely arranged in parallel; the door frames are sequentially arranged on the two bottom beams at intervals in the axial direction of the bottom beams. The number of the longitudinal beams is at least two, and the two longitudinal beams are arranged above the two bottom beams respectively and connected with the door frames. The number of the keel beams is two, and the two keel beams are horizontally arranged in the door frame in parallel and connected with the door frame through supporting assemblies correspondingly. The moving mechanism comprises a driving assembly, a fixed beam and two sliding beams, the two sliding beams are slidably connected to the bottoms of the two keel beams through the driving assembly, the fixed beam is vertically connected to the bottoms of the two sliding beams, and the crane is slidably connected to the fixed beam. The structure is simple and stable, the size is small, the cost is low, and the multi-dimensional flexibility requirements under different operations can be met.

Description

Technical Field

[0001] The utility model relates to the field of gantry frames, and more specifically, to a double-keel gantry frame. Background Art

[0002] A gantry frame (mobile small gantry crane) is a new type of small lifting gantry frame developed according to the daily production needs of medium and small factories (companies) to handle equipment, for warehouse inbound and outbound shipments, for lifting and repairing heavy equipment, and for material transportation. It is applicable to mold manufacturing, auto repair factories, mines, civil construction sites, and other occasions where lifting is required.

[0003] Traditional gantry cranes can usually only move in a single direction (such as the X-axis), and it is difficult to meet the multi-dimensional flexibility requirements of cranes in complex working environments. Although there are some cranes on the market that can achieve multi-directional movement through auxiliary devices, these devices often have complex structures, large volumes, high costs, and inconvenient maintenance. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a double-keel gantry frame, which is composed of multiple horizontally and vertically arranged beams to form the gantry frame body, with a simple and stable structure, small volume, and low cost; the double-keel beams are used as the load-bearing of the crane, and the crane can achieve linear movement in the X-axis and Y-axis directions through the moving mechanism, meeting the multi-dimensional flexibility requirements under different operations.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0006] A double-keel gantry frame, comprising:

[0007] A gantry frame body, the gantry frame body includes a bottom beam, longitudinal beams, and multiple gantry frames. There are two bottom beams, and the two bottom beams are arranged parallel to each other; multiple gantry frames are sequentially and spaced apart along the axial direction of the bottom beam on the two bottom beams; at least two longitudinal beams are provided, and the two longitudinal beams are respectively arranged above the two bottom beams and connected to the multiple gantry frames;

[0008] Keel beams, there are two keel beams, and the two keel beams are horizontally and parallelly arranged within the gantry frames and are respectively connected to the gantry frames through support components;

[0009] A moving mechanism, the moving mechanism includes a driving component, a fixed beam, and two sliding beams. The two sliding beams are respectively slidably connected to the bottoms of the two keel beams through the driving component, the fixed beam is vertically connected to the bottoms of the two sliding beams, and the crane is slidably connected to the fixed beam.

[0010] Further, in the present utility model, the door frame includes a cross beam and two vertical beams. The two vertical beams are respectively fixedly connected to the tops of the two bottom beams, and the cross beam is connected between the two vertical beams; diagonal braces are connected between adjacent vertical beams of multiple door frames.

[0011] Further, in the present utility model, a support rib is connected between the cross beam and the vertical beam.

[0012] Further, in the present utility model, the support assembly includes a support frame, a connecting plate and a fixing plate. The support frame is fixedly connected to the tops of multiple cross beams along the longitudinal beam direction; there are two fixing plates, and the two fixing plates are respectively fixedly connected to the top of the keel beam and close to both ends thereof; there are two connecting plates, and each connecting plate is connected between the fixing plate and the support frame.

[0013] Further, in the present utility model, the support frame includes a first horizontal plate beam and multiple first vertical plate beams. The multiple first vertical plate beams are respectively arranged corresponding to the tops of the multiple cross beams, and the cross beam is connected to the tops of the multiple first vertical plate beams.

[0014] Further, in the present utility model, second vertical plate beams parallel to the first vertical plate beams are fixedly connected to the central positions of the tops of the multiple cross beams, and a second horizontal plate beam perpendicular to the second vertical plate beams is fixedly connected to the tops of the multiple second vertical plate beams. Among them, the height of the second vertical plate beam is higher than that of the first vertical plate beam; a V-shaped protective net is fixed to the tops of the longitudinal beam and the second horizontal plate beam.

[0015] Further, in the present utility model, the sliding beam is U-shaped, the keel beam is an I-shaped beam, the keel beam is located inside the U-shaped opening of the sliding beam, and there is a gap between the outer side of the keel beam and the inner side of the sliding beam.

[0016] Further, in the present utility model, the drive assembly includes a drive motor, a driving gear, a driven gear, a power pulley and a transmission member. The driving gear is located inside the gap, and the drive motor is fixedly installed on the outer side of the sliding beam and is in transmission connection with the driving gear through the sliding beam;

[0017] There are two driven gears, and the two driven gears are respectively located on both sides of the keel beam. One of the driven gears meshes with the driving gear;

[0018] The power pulley is sleeved on the rotating shaft of the driven gear, and the power pulley rotates and abuts against the top surfaces of the two side plates of the keel beam;

[0019] The transmission member includes a transmission shaft and two transmission gears. The two ends of the transmission shaft are respectively fixed to the two bottom ends of the sliding beam through bearing seats, and through holes are provided in the bottom of the sliding beam corresponding to the transmission shaft; the two transmission gears are respectively inserted through the through holes and sleeved on the transmission shaft, and the two transmission gears are respectively engaged with the bottoms of the two driven gears.

[0020] Further, in the present utility model, the driving assembly further includes two groups of auxiliary pulleys provided on both sides of the keel beam. The auxiliary pulleys and the power pulley are respectively located at the two ends of the sliding beam, and the auxiliary pulleys are rotationally connected to the side wall of the sliding beam through auxiliary gears.

[0021] The present utility model has at least the following advantages or beneficial effects:

[0022] The present utility model forms a gantry main body through the bottom beam, longitudinal beams and multiple door frames. The mutual connection and support between the beams make the structure simple, easy to install and low in cost; the multiple door frames are longitudinally arranged at intervals to form a stable load-bearing system with good stability; by setting a double keel beam, a moving track and a support structure in the Y-axis direction are formed to improve the stability of the crane during movement; the sliding beam is driven by the driving assembly to slide along the keel beam to realize the linear movement of the crane in the Y-axis direction; the crane slides along the fixed beam to realize the linear movement of the crane in the X-axis direction, meeting the flexibility requirements of the crane for multi-dimensional movement in different working environments. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic diagram of the overall structure of the gantry provided by the embodiment of the present application;

[0025] Figure 2 It is a schematic diagram of a partial structure of the gantry provided by an embodiment of the present application;

[0026] Figure 3 For the present application Figure 1 The enlarged schematic diagram of the structure at A;

[0027] Figure 4 It is a schematic diagram of the structure of the moving mechanism provided by an embodiment of the present application.

[0028] Icons: 11, bottom beam; 111, bottom plate; 112, reinforcing rib plate; 12, longitudinal beam; 13, door frame; 131, cross beam; 132, vertical beam; 133, support rib; 14, diagonal brace; 15, keel beam; 16, support frame; 161, first horizontal plate beam; 162, first vertical plate beam; 17, connecting plate; 18, fixing plate; 21, sliding beam; 22, fixed beam; 31, driving motor; 32, driving gear; 33, driven gear; 34, power pulley; 35, transmission shaft; 36, transmission gear; 37, bearing seat; 38, auxiliary pulley; 41, second cross beam plate; 42, second vertical beam plate; 43, protective net; 5, crane. Detailed implementation mode

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Generally, the components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0031] Embodiment

[0032] Please refer to Figures 1-4 , which shows the structural schematic diagram of the double-keel gantry in the embodiment of the present utility model;

[0033] This embodiment provides a double-keel gantry, including:

[0034] The gantry main body, the gantry main body includes a bottom beam 11, a longitudinal beam 12 and a plurality of door frames 13. There are two bottom beams 11, and the two bottom beams 11 are arranged relatively parallel; a plurality of door frames 13 are arranged at intervals along the axial direction of the bottom beam 11 on the two bottom beams 11; at least two longitudinal beams 12 are arranged, and the two longitudinal beams 12 are respectively arranged above the two bottom beams 11 and connected to the plurality of door frames 13;

[0035] The keel beam 15, there are two keel beams 15, and the two keel beams 15 are horizontally and parallelly arranged inside the door frame 13 and are respectively connected to the door frame 13 through support components;

[0036] The moving mechanism includes a driving component, a fixed beam 22, and two sliding beams 21. The two sliding beams 21 are respectively slidably connected to the bottoms of two keel beams 15 through the driving component. The fixed beam 22 is vertically connected to the bottoms of the two sliding beams 21, and the crane 5 is slidably connected to the fixed beam 22.

[0037] Referring to Figures 1-2 , in some embodiments of the present application, the above gantry main body includes a bottom beam 11, longitudinal beams 12, and multiple gantry frames 13. There are two bottom beams 11, and the two bottom beams 11 are arranged relatively parallel. The bottom beam 11 is arranged at the bottom as a load-bearing foundation. Multiple gantry frames 13 are sequentially arranged at intervals along the axial direction of the bottom beam 11 on the two bottom beams 11, and multiple gantry frames 13 are fixedly connected to the tops of the two bottom beams 11 to form a stable load-bearing structure. At least two longitudinal beams 12 are provided, and the two longitudinal beams 12 are respectively arranged above the two bottom beams 11 and connected to the multiple gantry frames 13. By arranging the longitudinal beams 12, the multiple gantry frames 13 are connected into an integrated body, that is, the bottoms of the multiple gantry frames 13 are connected to the bottom beam 11 to form an integrated structure, and their tops are connected to the longitudinal beams 12 to form an integrated structure. Furthermore, the bottom beam 11, the longitudinal beams 12, and the multiple gantry frames 13 are integrated into an integrated structure to form a stable gantry main body support mechanism.

[0038] The above bottom beam 11, longitudinal beams 12, and gantry frames 13 are all made of I-shaped steel beams, which have high strength, low cost, small volume, and are convenient for installation and disassembly.

[0039] As a preferred implementation manner, the above gantry frame 13 includes a cross beam 131 and two vertical beams 132. The two vertical beams 132 are respectively fixedly arranged opposite to each other on the tops of the two bottom beams 11, and the cross beam 131 is connected between the two vertical beams 132. Diagonal braces 14 are connected between the adjacent vertical beams 132 of the multiple gantry frames 13.

[0040] The vertical beam 132 is fixed to the top of the bottom beam 11. An enlarged bottom plate 111 is arranged at the bottom of the vertical beam 132 and is integrally connected to the vertical beam 132 through a reinforcing triangular plate to improve the connection stability and support stability of the vertical beam 132. Reinforcing rib plates 112 are respectively arranged on both sides of the bottom beam 11 at the corresponding positions of the vertical beam 132 to improve the bearing capacity of the corresponding positions of the bottom beam 11.

[0041] Diagonal braces 14 are arranged between the adjacent vertical beams 132, and the diagonal braces 14 are connected to the middle parts of the vertical beams 132 to further improve the connection stability between the multiple gantry frames 13.

[0042] As a preferred implementation manner, a support rib 133 is connected between the above cross beam 131 and the vertical beam 132. The cross beam 131 is used as the main stress body. Adding the support rib 133 to connect with the vertical beam 132 can improve its stress, and further improve the stability of the crane 5 during operation.

[0043] In some embodiments of the present application, there are two keel beams 15. The two keel beams 15 are horizontally and parallelly arranged within the door frame 13 and are respectively connected to the door frame 13 through support components. By arranging the two keel beams 15 at intervals within the door frame 13 and supporting the crane 5 through the two keel beams 15, the force can be balanced, the force stability can be improved, and the two keel beams 15 can form a moving track when the crane 5 moves in the Y-axis direction, ensuring the moving stability. The above-mentioned keel beam 15 adopts an I-shaped steel beam, which has good load-bearing capacity and can be directly used as a moving track.

[0044] As a preferred implementation manner, the above-mentioned support component includes a support frame 16, a connecting plate 17, and a fixing plate 18. The support frame 16 is fixedly connected to the tops of a plurality of cross beams 131 along the direction of the longitudinal beam 12; there are two fixing plates 18, and the two fixing plates 18 are respectively fixedly connected to the top of the keel beam 15 and close to its two ends; there are two connecting plates 17, and each connecting plate 17 is connected between the fixing plate 18 and the support frame 16.

[0045] The positions of the keel beam 15 near the two ends are supported by the connecting plate 17 and the fixing plate 18, and by setting the support frame 16 fixedly connected to the tops of the cross beams 131 of a plurality of door frames 13, the supporting force can be dispersed to a plurality of door frames 13, improving the support stability.

[0046] As a preferred implementation manner, the above-mentioned support frame 16 includes a first horizontal plate beam 161 and a plurality of first vertical plate beams 162. The plurality of first vertical plate beams 162 are respectively arranged corresponding to the tops of a plurality of cross beams 131, and the cross beams 131 are connected to the tops of the plurality of first vertical plate beams 162.

[0047] The above-mentioned connecting plate 17, first horizontal plate beam 161, and first vertical plate beam 162 are all C-shaped channel steels, which have high strength and small volume, and are convenient for installation and disassembly. Through the above structural design, while improving the load-bearing stability, it is convenient to disassemble and assemble the gantry, improving the maintenance convenience.

[0048] As a preferred implementation manner, second vertical plate beams parallel to the first vertical plate beam 162 are fixedly connected to the central positions of the tops of the above-mentioned plurality of cross beams 131, and a second horizontal plate beam perpendicular to them is fixedly connected to the tops of the plurality of second vertical plate beams. Among them, the height of the second vertical plate beam is higher than that of the first vertical plate beam 162; a V-shaped protective net 43 is fixed on the tops of the longitudinal beam 12 and the second horizontal plate beam. By arranging the second vertical plate beam 42 and the second cross beam plate 41 with a higher height in the middle and then covering the V-shaped protective net 43 on the top, connecting with the longitudinal beams 12 on both sides and the second cross beam plate 41 in the middle, on the one hand, the connection stability is improved, and on the other hand, the keel frame is protected.

[0049] In some embodiments of the present application, the mobile mechanism includes a driving assembly, a fixed beam 22 and two sliding beams 21, the two sliding beams 21 are respectively slidably connected to the bottom of the two keel beams 15 through the driving assembly, the fixed beam 22 is vertically connected to the bottom of the two sliding beams 21, and the crane 5 is slidably connected to the fixed beam 22. The fixed beam 22 and the two sliding beams 21 can realize the linear movement of the crane 5 in the Y-axis direction and the X-axis direction, thereby improving the flexibility during operation.

[0050] As a preferred embodiment, the sliding beam 21 is U-shaped, the keel beam 15 is an I-beam, the keel beam 15 is located in the U-shaped opening of the sliding beam 21, and there is a gap between the outer side of the keel beam 15 and the inner side of the sliding beam 21. The keel beam 15 is an I-beam with grooves on both sides, which can be used as sliding tracks. The sliding beam 21 is made of U-shaped beam steel, which is arranged at the bottom of the keel beam 15 so that its two sides can be opposite to the side walls of the keel beam 15. By setting the U-shaped opening width of the sliding beam 21 to be larger than the width of the keel beam 15, a certain gap is provided so that a driving component can be installed between the sliding beam 21 and the keel beam 15 to drive the sliding beam 21 to slide on the keel beam 15.

[0051] Reference Figures 3-4 As a preferred embodiment, the driving assembly includes a driving motor 31, a driving gear 32, a driven gear 33, a power pulley 34 and a transmission member. The driving gear 32 is located in the gap. The driving motor 31 is fixedly installed on the outside of the sliding beam 21 and passes through the sliding beam 21 to be connected to the driving gear 32. There are two driven gears 33, which are respectively located on both sides of the keel beam 15, and one of the driven gears 33 is meshed with the driving gear 32. The power pulley 34 is sleeved on the driven gear 33. The gear 33 is on the rotating shaft, and the power pulley 34 rotates and abuts against the top surfaces of the bottom plates 111 on both sides of the keel beam 15; the driving motor 31 drives the driving gear 32 to rotate, the driving gear 32 drives the driven gear 33 to rotate, and the driven gear 33 drives the power pulley 34 to rotate. Since the wheel surface of the power pulley 34 abuts against the bottom plate 111 of the keel beam 15, the friction between the power pulley 34 and the keel beam 15 is increased under the gravity of the entire driving assembly and the sliding beam 21, and relative movement is achieved under the rotation drive.

[0052] The above transmission components include a transmission shaft 35 and two transmission gears 36. The two ends of the transmission shaft 35 are respectively fixed to the two bottom ends of the sliding beam 21 through bearing seats 37, and through holes are provided in the bottom of the sliding beam 21 corresponding to the transmission shaft 35; the two transmission gears 36 are respectively inserted through the through holes and sleeved on the transmission shaft 35, and the two transmission gears 36 are respectively meshed with the bottoms of the two driven gears 33. The driven gear 33 meshed with the driving gear 32 drives the transmission gear 36 meshed with it to rotate, and then drives the transmission gear 36 on the other side to rotate through the transmission shaft 35, thereby driving the driven gear 33 on the other side to rotate, and further driving the power pulley 34 on the other side to rotate, so that both sides of the sliding beam 21 slide along both sides of the keel beam 15 under the action of the power pulley 34, improving the sliding stability.

[0053] As a preferred implementation manner, the above driving assembly further includes two groups of auxiliary pulleys 38 arranged on both sides of the keel beam 15. The auxiliary pulleys 38 and the power pulleys 34 are respectively located at the two ends of the sliding beam 21, and the auxiliary pulleys 38 are rotationally connected to the side wall of the sliding beam 21 through auxiliary gears. That is, pulleys are arranged at both ends of the sliding beam 21 to enable the sliding beam 21 to move smoothly at the bottom of the keel beam 15.

[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A double keel gantry, characterized in that: include: The door frame body comprises a bottom beam, a longitudinal beam and a plurality of door frames, wherein two bottom beams are provided, and the two bottom beams are arranged relatively parallel; a plurality of door frames are arranged on the two bottom beams in sequence and at intervals along the axial direction of the bottom beam; at least two longitudinal beams are provided, and the two longitudinal beams are respectively arranged above the two bottom beams and connected to the plurality of door frames; A keel beam, wherein two keel beams are provided, and the two keel beams are horizontally and parallelly arranged in the door frame and are respectively connected to the door frame through support components; The mobile mechanism includes a driving assembly, a fixed beam and two sliding beams. The two sliding beams are respectively slidably connected to the bottom of the two keel beams through the driving assembly, the fixed beam is vertically connected to the bottom of the two sliding beams, and the crane is slidably connected to the fixed beam.

2. The double keel gantry according to claim 1, characterized in that: The door frame comprises a cross beam and two vertical beams. The two vertical beams are fixed relatively to the tops of the two bottom beams respectively, and the cross beam is connected between the two vertical beams. A plurality of adjacent vertical beams of the door frames are connected with diagonal braces.

3. The double keel gantry according to claim 2, characterized in that: A supporting rib is connected between the cross beam and the vertical beam.

4. The double keel gantry according to claim 2, characterized in that: The support assembly includes a support frame, a connecting plate and a fixing plate. The support frame is fixedly connected to the top of multiple cross beams along the longitudinal beam direction; two fixing plates are provided, and the two fixing plates are respectively fixedly connected to the top of the keel beam and close to its two ends; two connecting plates are provided, and each connecting plate is connected between the fixing plate and the support frame.

5. The double keel gantry according to claim 4, characterized in that: The support frame includes a first transverse plate beam and a plurality of first vertical plate beams. The plurality of first vertical plate beams are respectively arranged on the tops of the plurality of transverse beams, and the first transverse plate beam is connected to the tops of the plurality of first vertical plate beams.

6. The double keel gantry according to claim 5, characterized in that: A second vertical beam parallel to the first vertical beam is fixedly connected to the center position of the top of multiple cross beams, and a second cross beam perpendicular to the second vertical beam is fixedly connected to the top of multiple second vertical beams, wherein the height of the second vertical beam is higher than that of the first vertical beam; a V-shaped protective net is fixed on the top of the longitudinal beam and the second cross beam.

7. The double keel gantry according to claim 1, characterized in that: The sliding beam is U-shaped, the keel beam is an I-beam, the keel beam is located in the U-shaped opening of the sliding beam, and there is a gap between the outer side of the keel beam and the inner side of the sliding beam.

8. The double-keel gantry according to claim 7, characterized in that: The driving assembly includes a driving motor, a driving gear, a driven gear, a power pulley and a transmission member, wherein the driving gear is located in the gap, and the driving motor is fixedly installed on the outside of the sliding beam and passes through the sliding beam to be transmission-connected with the driving gear; There are two driven gears, which are respectively located on both sides of the keel beam, and one of the driven gears is meshed with the driving gear; The power pulley is sleeved on the rotating shaft of the driven gear, and the power pulley is rotatably abutted against the top surfaces of the bottom plates on both sides of the keel beam; The transmission member includes a transmission shaft and two transmission gears. The two ends of the transmission shaft are respectively fixed to the two ends of the bottom of the sliding beam through bearing seats. A through hole is opened at the bottom of the sliding beam corresponding to the transmission shaft. The two transmission gears are respectively inserted into the through holes and sleeved on the transmission shaft, and the two transmission gears are respectively meshed with the bottoms of the two driven gears.

9. The double-keel gantry according to claim 8, characterized in that: The driving assembly also includes two groups of auxiliary pulleys arranged on both sides of the keel beam, the auxiliary pulleys and the power pulley are respectively located at two ends of the sliding beam, and the auxiliary pulleys are rotatably connected to the side walls of the sliding beam through auxiliary gears.

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