Gantry crane with height easy to adjust

Abstract

The utility model relates to the technical field of gantry hoisting equipment, in particular to a gantry crane easy to adjust height, which comprises a gantry frame, a transverse running track and gantry running hoisting equipment, the transverse running track is slidably arranged between two columns through a square frame sleeve, and a clamping block clamped with a clamping groove is arranged outside the square frame sleeve. An electric push rod for controlling the clamping block to do telescopic motion is fixedly arranged outside the square frame sleeve, and a driving motor for driving the second shaft body to rotate is fixedly arranged in the center of the bottom of the cross beam base. According to the technical scheme, the electric push rod is used for controlling the clamping block to be separated from the clamping groove, the driving motor is used for synchronously driving the winding drum to rotate at the same speed in the same direction, and therefore the transverse operation track can be stably controlled to ascend and descend stably, the height of the transverse operation track can be adjusted easily, and the height of gantry operation hoisting equipment can be adjusted according to actual production requirements; unnecessary electric energy consumption and mechanical abrasion of gantry operation hoisting equipment are reduced, and the production operation cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry lifting equipment, in particular to a gantry crane which is easy to adjust the height. Background Art

[0002] At present, gantry cranes, also known as cranes, are lifting equipment for vertical lifting and horizontal transportation of heavy objects. They are usually horizontally mounted above workshops, warehouses and material yards for lifting materials. Since the crossbeam of the gantry crane is usually fixedly connected to the supporting column, the height of the crossbeam of the gantry crane cannot be adjusted. The inability to adjust the height of the crossbeam will limit the operating height and working range of the gantry crane, and it cannot adapt to the lifting of objects of different heights, which limits its use to a certain extent. The height of the crossbeam cannot be adjusted, so the height needs to be determined when selecting the model. If the height needs to be adjusted later, it will become more difficult, and a lot of disassembly and reinstallation will be required, which not only increases the difficulty of operation, but also wastes manpower and material resources. The search application number is (202320807572.5), which discloses a gantry crane that is easy to adjust the height, including a base and a support column, a first slide groove is arranged inside the bottom end of the support column, and a first installation groove is arranged on the inner side of the top end of the support column, and a first rotating drive member is fixed at the center of the top end of the support column, and a first screw is rotatably installed at the output end of the first rotating drive member.

[0003] In the process of realizing the utility model, the inventors found that there are at least the following problems in the prior art that have not been solved: the lifting and lowering control of the height of the above-mentioned gantry crane beam is controlled by a screw rod, and the rotation of the two screw rods is controlled by two independent left and right motors to control the synchronous lifting and lowering of a crane beam. It is difficult to control the two independent motors at the same speed. A slight speed difference will cause uneven force on the screw rod, resulting in bending and deformation. Moreover, the overall weight of the crane beam is supported only by the thread pattern of the screw rod. Long-term use will cause the screw rod to bend and deform, and the subsequent maintenance cost is high. Therefore, it is necessary to improve the lifting mechanism of the crane beam. Therefore, we propose a gantry crane with easy height adjustment. Utility Model Content

[0004] The utility model aims to provide a gantry crane with easy height adjustment, which solves the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gantry crane with easy height adjustment, comprising a gantry frame, a transverse running track and a gantry running lifting device, the gantry frame comprising two parallel U-shaped gantry frames, each U-shaped gantry frame comprising two parallel columns, the tops of the two columns being fixedly connected by a crossbeam seat, the number of the transverse running tracks being two, each of the transverse running tracks being provided with a square frame sleeve at both ends, each of the transverse running tracks being slidably arranged between the two columns through the square frame sleeve, the square frame sleeve It is arranged outside the column, and a plurality of slots are arranged vertically and equidistantly on the outer wall surface of the column. A card block connected with the card slot is arranged outside the square frame sleeve, and an electric push rod for controlling the telescopic movement of the card block is fixedly arranged outside the square frame sleeve. Winding drums are rotatably installed on both sides of the bottom of the beam seat through shaft body 1, and the winding drums are connected to the horizontal running track through the suspension rope wound on the outside thereof. A shaft body 2 is rotatably installed at the bottom of the beam seat, and the two ends of the shaft body 2 are respectively connected coaxially with the two shaft bodies through couplings. A driving motor for driving the shaft body 2 to rotate is fixedly arranged at the center position of the bottom of the beam seat;

[0006] The gantry crane is vertically arranged above two parallel horizontal running tracks.

[0007] As a preferred implementation of the technical solution of the present application, the longitudinal height of the card slot is 30 cm greater than the longitudinal height of the card block, and the lateral width of the card slot is consistent with the lateral width of the card block.

[0008] As a preferred implementation of the technical solution of the present application, a U-shaped frame seat is fixedly arranged on the outside of the square frame sleeve, an electric push rod is fixed on the outside of the U-shaped frame seat, a push rod of the electric push rod is fixedly connected to a card block, the card block passes through the square frame sleeve and is embedded in the card slot.

[0009] As a preferred implementation of the technical solution of the present application, a gear one is fixedly provided in the middle of the second shaft, and a gear two meshing with the gear one is fixedly provided on the motor shaft of the driving motor.

[0010] As a preferred implementation of the technical solution of the present application, fixed square sleeves are fixedly provided at both ends of the transverse running track, and a lifting ring connected to the end of the lifting rope is fixedly provided on the top of the fixed square sleeve.

[0011] As a preferred implementation of the technical solution of the present application, a plurality of bearing seats are fixedly arranged at the bottom of the beam seat, shaft body 2 is rotatably arranged in the middle of the two bearing seats, and one end of shaft body 1 facing shaft body 2 is rotatably connected with a bearing seat.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The technical solution of the present application controls the separation of the card block and the card slot through an electric push rod, and uses a driving motor to synchronously drive the winding drum to rotate at the same speed and in the same direction, so as to smoothly control the smooth lifting and lowering of the horizontal running track, which is beneficial to adjust the height of the horizontal running track, so as to adjust the height of the gantry operation lifting equipment according to actual production needs, reduce unnecessary energy consumption and mechanical wear of the gantry operation lifting equipment, and help reduce production operation costs.

[0014] 2. After the height of the horizontal running track is adjusted, the technical solution of the present application uses an electric push rod to control the engagement of the card block and the card slot. The card block of the square frame cooperates with the card slot of the column rod to bear the weight of the horizontal running track, thereby avoiding the lifting structure from bearing the weight of the horizontal running track, thereby increasing the service life of the lifting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0016] Figure 1 This is a three-dimensional diagram of a gantry crane that is easy to adjust in height according to the utility model;

[0017] Figure 2 This is a front view of a gantry crane that is easy to adjust in height according to the utility model;

[0018] Figure 3 It is a schematic diagram of the cooperation between the column rod and the slot of the utility model.

[0019] In the figure: 1. column; 2. horizontal running track; 3. gantry running lifting equipment; 4. square frame; 5. electric push rod; 6. clamping block; 7. clamping slot; 8. fixed square sleeve; 9. crossbeam seat; 10. winding drum; 11. shaft body 2; 12. bearing seat; 13. shaft body 1; 14. gear 1; 15. gear 2; 16. driving motor; 17. U-shaped frame seat. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Embodiment 1, as Figure 1-3As shown, the utility model provides a technical solution: a gantry crane with easy height adjustment, including a gantry frame, a transverse running track 2 and a gantry running lifting device 3, the gantry frame includes two parallel U-shaped gantry frames, each U-shaped gantry frame is composed of two parallel columns 1, the tops of the two columns 1 are fixedly connected by a crossbeam seat 9, the number of the transverse running tracks 2 is two, each of the transverse running tracks 2 is provided with a square frame sleeve 4 at both ends, each of the transverse running tracks 2 is slidably arranged between the two columns 1 through the square frame sleeve 4, the square frame sleeve 4 is sleeved on the outside of the column 1, and a plurality of slots 7 are vertically equidistantly arranged on the outer wall surface of the column 1, and the outer surface of the square frame sleeve 4 is provided with A card block 6 is provided which is engaged with the card slot 7, an electric push rod 5 for controlling the telescopic movement of the card block 6 is fixedly provided on the outside of the square frame sleeve 4, winding drums 10 are rotatably installed on both sides of the bottom of the crossbeam seat 9 through a shaft body 13, and the winding drums 10 are connected to the horizontal running track 2 through a suspension rope wound around the outside thereof, a shaft body 2 11 is rotatably installed at the bottom of the crossbeam seat 9, and the two ends of the shaft body 2 11 are coaxially connected to the two shaft bodies 13 respectively through a coupling, a driving motor 16 for driving the shaft body 2 11 to rotate is fixedly provided at the center position of the bottom of the crossbeam seat 9, a gear 14 is fixedly provided in the middle of the shaft body 2 11, and a gear 2 15 meshing with the gear 14 is fixedly provided on the motor shaft of the driving motor 16;

[0022] The gantry operation hoisting device 3 is vertically arranged just above the two parallel horizontal operation rails 2 .

[0023] In a specific embodiment of the present utility model, the gantry operation hoisting device 3 is composed of a driving wheel, a hoisting machine, a hoisting drum and a hoisting rope. The driving wheel is used to travel on the horizontal operation track 2, thereby driving the gantry operation hoisting device 3 to travel on the horizontal operation track 2. The driving motor 16 and the electric push rod 5 are both controlled by an independent controller (not shown in the figure), and the power source of the driving motor 16 and the electric push rod 5 is provided by a wire connected to a power supply;

[0024] The gear 14 is fixed to the middle part of the shaft body 2 11 by a pin shaft, and a bearing is arranged in the middle part of each bearing seat 12. The shaft body 2 11 is rotatably supported by the two bearing seats 12, and one end of the shaft body 13 is rotatably supported by a bearing seat 12, and the other end of the shaft body 13 is rotatably connected with the bearing arranged on the inner wall of the column rod 1. The driving motor 16 drives the shaft body 2 11 to rotate by gear transmission, thereby driving the two shaft bodies 2 11 to rotate synchronously, thereby synchronously winding up the rope of the winding drum 10. When the block 6 and the slot 7 are in a separated state, the horizontal running track 2 can be controlled to rise and fall smoothly. After the height of the horizontal running track 2 is adjusted, the electric push rod 5 is used to control the block 6 and the slot 7 to engage with each other, and the block 6 of the square frame sleeve 4 cooperates with the slot 7 of the column rod 1 to bear the weight of the horizontal running track 2.

[0025] In the preferred technical solution, the lateral width of the slot 7 is consistent with the lateral width of the block 6. When the height position of the horizontal running track 2 needs to be adjusted, the horizontal running track 2 must be raised by 10 cm as a whole so that the block 6 does not contact the slot 7, which facilitates the separation of the block 6 from the slot 7. The longitudinal height of the slot 7 is 30 cm greater than the longitudinal height of the block 6, which facilitates the reservation of space for raising the horizontal running track 2 as a whole.

[0026] In the preferred technical solution, a U-shaped frame seat 17 is fixedly provided on the outside of the square frame sleeve 4, the electric push rod 5 is fixed on the outside of the U-shaped frame seat 17, the push rod of the electric push rod 5 is fixedly connected to the clamping block 6, the clamping block 6 passes through the square frame sleeve 4 and is embedded in the clamping slot 7, and the U-shaped frame seat 17 is used to fix the electric push rod 5.

[0027] In the preferred technical solution, fixed square sleeves 8 are fixedly provided at both ends of the horizontal running track 2, and a lifting ring connected to the end of the lifting rope is fixedly provided on the top of the fixed square sleeve 8. The fixed square sleeve 8 cooperates with the lifting ring to facilitate connection with the lifting rope of the winding drum 10.

[0028] In the preferred technical solution, a plurality of bearing seats 12 are fixedly arranged at the bottom of the beam seat 9, the shaft body 11 is rotatably arranged in the middle of the two bearing seats 12, and the shaft body 13 is rotatably connected to a bearing seat 12 at one end facing the shaft body 2 11, and the bearing seat 12 is used to support the smooth rotation of the shaft body 13 and the shaft body 2 11.

[0029] Working principle: when passing the initial state, the block 6 is engaged in the slot 7, and the block 6 of the frame sleeve 4 cooperates with the slot 7 of the column 1 to bear the weight of the horizontal running track 2. When the height position of the horizontal running track 2 needs to be adjusted, the horizontal running track 2 needs to be raised by 10 cm as a whole so that the block 6 and the slot 7 are not in contact, which facilitates the separation of the block 6 and the slot 7. Then the push rod of the electric push rod 5 is controlled to retract, so that the block 6 and the slot 7 are separated. Then the driving motor 16 drives the shaft body 2 11 to rotate through the gear transmission, thereby driving the two shaft bodies 2 11 to rotate synchronously, thereby synchronously winding up the rope of the winding drum 10. When the block 6 and the slot 7 are in the separated state, the horizontal running track 2 can be controlled to rise and fall smoothly. After the height adjustment of the horizontal running track 2 is completed, the electric push rod 5 is used to control the block 6 and the slot 7 to engage and cooperate, and the block 6 of the frame sleeve 4 cooperates with the slot 7 of the column 1 to bear the weight of the horizontal running track 2 again.

Claims

1. A gantry crane with easily adjustable height, characterized in that: The invention comprises a gantry frame, a transverse running track (2) and a gantry running lifting device (3), wherein the gantry frame comprises two parallel U-shaped gantry frames, each of the U-shaped gantry frames comprises two parallel column bars (1), the tops of the two column bars (1) are fixedly connected via a crossbeam seat (9), the number of the transverse running tracks (2) is two, each of the transverse running tracks (2) is provided with a square frame sleeve (4) at both ends, each of the transverse running tracks (2) is slidably arranged between the two column bars (1) via the square frame sleeve (4), the square frame sleeve (4) is sleeved on the outside of the column bar (1), the outer wall surface of the column bar (1) is provided with a plurality of slots (7) at equal intervals vertically, and the square frame sleeve (4) is provided on the outer wall surface of the column bar (1). The frame sleeve (4) is provided with a block (6) that is engaged with the slot (7) on the outside, and an electric push rod (5) that controls the telescopic movement of the block (6) is fixedly provided on the outside of the frame sleeve (4). Winding drums (10) are rotatably installed on both sides of the bottom of the crossbeam seat (9) via shaft body 1 (13), and the winding drums (10) are connected to the horizontal running track (2) via a suspension rope wound around the outside. A shaft body 2 (11) is rotatably installed on the bottom of the crossbeam seat (9), and the two ends of the shaft body 2 (11) are coaxially connected to the two shaft bodies 1 (13) respectively through couplings. A driving motor (16) that drives the shaft body 2 (11) to rotate is fixedly provided at the center of the bottom of the crossbeam seat (9); The gantry operation hoisting device (3) is vertically arranged directly above the two parallel horizontal operation rails (2).

2. A gantry crane with easily adjustable height according to claim 1, characterized in that: The longitudinal height of the card slot (7) is 30 cm greater than the longitudinal height of the card block (6), and the transverse width of the card slot (7) is consistent with the transverse width of the card block (6).

3. The gantry crane with easily adjustable height according to claim 1, characterized in that: A U-shaped frame seat (17) is fixedly arranged outside the square frame sleeve (4), the electric push rod (5) is fixed to the outside of the U-shaped frame seat (17), the push rod of the electric push rod (5) is fixedly connected to a clamping block (6), and the clamping block (6) passes through the square frame sleeve (4) and is embedded in the clamping slot (7).

4. The gantry crane with easily adjustable height according to claim 1, characterized in that: A gear one (14) is fixedly arranged in the middle of the second shaft body (11), and a gear two (15) meshing with the gear one (14) is fixedly arranged on the motor shaft of the driving motor (16).

5. The gantry crane with easily adjustable height according to claim 1, characterized in that: Fixed square sleeves (8) are fixedly provided at both ends of the transverse running track (2), and a lifting ring connected to the end of the lifting rope is fixedly provided at the top of the fixed square sleeve (8).

6. The gantry crane with easily adjustable height according to claim 1, characterized in that: A plurality of bearing seats (12) are fixedly arranged at the bottom of the crossbeam seat (9); the second shaft body (11) is rotatably arranged in the middle of the two bearing seats (12); and one end of the first shaft body (13) facing the second shaft body (11) is rotatably connected to a bearing seat (12).

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