Double-drive linear motion module for gantry

Abstract

The utility model provides a double-drive linear motion module for a gantry, and relates to the technical field of gantry cranes, the double-drive linear motion module for the gantry comprises a gantry body, a platform is fixed at the top of the gantry body, and a guide framework is fixed at the bottom of the platform. When one motor rotates in one direction, one butt joint shaft can be driven to rotate, one driving shaft is driven to rotate, so that the driving block slides, and at the moment, the other driving shaft plays a guiding role and rotates along with sliding of the driving block; when the other driving shaft rotates, the clamping ends of the multiple spring clamping plates on the driving shaft are attached to the inclined face of the wedge-shaped opening, so that the driving shaft can slide along the outer surface of the butt joint shaft, mechanical interference is prevented, and when the driving block slides to the corresponding part, the other motor rotates to drive the other driving shaft to do the slave motion, so that the mechanical interference is prevented. And the driving block can be reset.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry cranes, in particular to a double-drive linear motion module for gantry cranes. Background Art

[0002] Gantry crane is a variation of bridge crane. In ports, it is mainly used for loading and unloading of outdoor cargo yards, material yards, and bulk cargo. Its metal structure is like a door-shaped frame, with two legs installed under the main beam, which can walk directly on the track on the ground. Both ends of the main beam can have outward cantilever beams. Gantry cranes have the characteristics of high site utilization, large operating range, wide adaptability, and strong versatility, and are widely used in port cargo yards.

[0003] The traditional gantry drive method uses a single motor drive, which has low structural rigidity, low precision and is easy to induce low-frequency resonance problems in the system. In addition, the gantry hook needs to reciprocate, and the frequent forward and reverse rotation of the single motor can easily damage the motor. At the same time, it is difficult to ensure that the axial driving force of the motor accurately acts on the center of gravity of the moving parts, which will have a great impact on the life and precision of the mechanical equipment. Utility Model Content

[0004] In order to solve the problems in the prior art, the utility model provides a double-drive linear motion module for a gantry.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A dual-drive linear motion module for a gantry comprises a gantry body, a platform is fixed on the top of the gantry body, a guide frame is fixed on the bottom of the platform, the interior of the guide frame is hollow, motors are fixed to the inner walls on both sides of the guide frame, two motors are diagonally distributed inside the guide frame, docking shafts are fixed to the output ends of the two motors, and a driving shaft is provided at one end of the two docking shafts.

[0007] Optionally, one end of the two driving shafts are rotatably connected to the inner wall of the guide frame, and a driving block is slidably connected inside the guide frame.

[0008] Optionally, the two driving shafts are slidably connected to the driving block, and a plurality of spring clamps are fixed at equal distances along the circumferential direction on one end of the two driving shafts.

[0009] Optionally, one end of the two docking shafts is provided with a plurality of wedge-shaped openings equidistantly spaced along the circumferential direction, and the plurality of spring clamps extend correspondingly to the inside of the wedge-shaped openings.

[0010] Optionally, inner walls on one side of the plurality of wedge-shaped openings are all inclined and extend to the outer surface of the docking shaft, and inner walls on the other side of the plurality of wedge-shaped openings are all vertical.

[0011] Optionally, a through opening is opened on one side of the guide frame, a clamping bolt is provided on one side of the driving block, and one end of the clamping bolt extends to the outside of the through opening.

[0012] Optionally, a base is fixed to the bottom of the gantry body, a guardrail is provided on the top of the platform, and an opening is provided on the top of the platform, and the opening is located directly above the clamping bolt.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0014] 1. In the utility model, when using the device, the two motors used only need to rotate in one direction. When one of the motors rotates in one direction, it will drive one of the docking shafts to rotate, driving one of the driving shafts to rotate, so that the driving block slides. At this time, the other driving shaft acts as a guide and rotates with the sliding of the driving block. When the other driving shaft rotates, the engaging ends of the multiple spring clamps on it fit with the inclined surface of the wedge-shaped mouth, so that it can slide along the outer surface of the docking shaft to prevent mechanical interference. When the driving block slides to the corresponding position, the other motor rotates to drive the other driving shaft to perform the above-mentioned reciprocating motion, so that the driving block can be reset.

[0015] 2. In the present invention, a clamping bolt is provided on the driving block so that the driving block can be fixed inside the guide frame by rotating the clamping bolt, thereby preventing the driving block from sliding when the motor is not working. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1 The utility model provides a main view stereoscopic structure diagram of a dual-drive linear motion module for a gantry;

[0018] Figure 2 The utility model provides a schematic diagram of a sectional three-dimensional structure of a dual-drive linear motion module for a gantry;

[0019] Figure 3 The utility model provides a partial cross-sectional three-dimensional structural schematic diagram of a gantry body in a dual-drive linear motion module for a gantry;

[0020] Figure 4 For this utility model Figure 3 Magnified view at A in the middle.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Gantry body; 2. Base; 3. Platform; 4. Guardrail; 5. Guide frame; 6. Opening; 7. Drive block; 8. Through-hole; 9. Clamping bolt; 10. Motor; 11. Docking shaft; 12. Drive shaft; 13. Wedge-shaped mouth; 14. Spring clamp.

[0023] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0024] The utility model will now be further described in detail with reference to the accompanying drawings.

[0025] Embodiment 1, as Figure 1-4 As shown, the utility model provides a technical solution of a dual-drive linear motion module for a gantry: it includes a gantry body 1, a platform 3 is fixed on the top of the gantry body 1, a guide frame 5 is fixed on the bottom of the platform 3, the interior of the guide frame 5 is hollow, motors 10 are fixed to the inner walls on both sides of the guide frame 5, the two motors 10 are diagonally distributed inside the guide frame 5, the output ends of the two motors 10 are fixed with docking shafts 11, and one end of the two docking shafts 11 is provided with a driving shaft 12.

[0026] The effect achieved by the entire embodiment 1 is that when using the present device, the two motors 10 used only need to rotate in one direction. When one of the motors 10 rotates in one direction, it will drive one of the docking shafts 11 to rotate, driving one of the driving shafts 12 to rotate, thereby causing the driving block 7 to slide. At this time, the other driving shaft 12 acts as a guide and rotates with the sliding of the driving block 7. When the other driving shaft 12 rotates, the engaging ends of the multiple spring clips 14 thereon fit with the inclined surfaces of the wedge-shaped openings 13, so that they can slide along the outer surface of the docking shaft 11 to prevent mechanical interference. When the driving block 7 slides to the corresponding position, the other motor 10 rotates to drive the other driving shaft 12 to perform the above-mentioned reciprocating motion, thereby resetting the driving block 7.

[0027] Embodiment 2, as Figure 1-4As shown, one end of the two driving shafts 12 is correspondingly connected to the inner wall of the guide frame 5 for rotation, and the guide frame 5 is internally slidably connected with a driving block 7, and the two driving shafts 12 are correspondingly slidably penetrated through the driving block 7, and one end of the two driving shafts 12 is evenly fixed with a plurality of spring clamps 14 along the circumferential direction, and one end of the two docking shafts 11 is evenly spaced along the circumferential direction. A plurality of wedge-shaped openings 13 are provided at one end, and a plurality of spring clamps 14 extend to the inside of the wedge-shaped openings 13, and the inner walls on one side of the plurality of wedge-shaped openings 13 are inclined and extend to the outer surface of the docking shaft 11, and the inner walls on the other side of the plurality of wedge-shaped openings 13 are vertical, a through opening 8 is provided on one side of the guide frame 5, and a clamping bolt 9 is provided on one side of the driving block 7, and one end of the clamping bolt 9 extends to the outside of the through opening 8, a base 2 is fixed to the bottom of the gantry body 1, a guardrail 4 is provided on the top of the platform 3, and an opening 6 is provided on the top of the platform 3, and the opening 6 is located directly above the clamping bolt 9.

[0028] The effect achieved by the entire embodiment 2 is that the clamping bolt 9 is arranged on the driving block 7 so that the driving block 7 can be fixed inside the guide frame 5 by rotating the clamping bolt 9, thereby preventing the driving block 7 from sliding when the motor 10 is not working.

[0029] Working principle: When using this device, the two motors 10 used only need to rotate in one direction. When one of the motors 10 rotates in one direction, it will drive one of the docking shafts 11 to rotate, and drive one of the driving shafts 12 to rotate, so that the driving block 7 slides. At this time, the other driving shaft 12 acts as a guide and rotates with the sliding of the driving block 7. When the other driving shaft 12 rotates, the engaging ends of the multiple spring clamps 14 thereon fit with the inclined surfaces of the wedge-shaped openings 13, so that they can slide along the outer surface of the docking shaft 11 to prevent mechanical interference. When the driving block 7 slides to the corresponding position, the other motor 10 rotates to drive the other driving shaft 12 to perform the above-mentioned reciprocating motion, so that the driving block 7 can be reset. A clamping bolt 9 is provided on the driving block 7 so that the driving block 7 can be fixed to the inside of the guide frame 5 by rotating the clamping bolt 9 to prevent the driving block 7 from sliding when the motor 10 is not working.

[0030] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A dual-drive linear motion module for a gantry, comprising a gantry body (1), characterized in that: A platform (3) is fixed on the top of the gantry body (1), a guide frame (5) is fixed on the bottom of the platform (3), the interior of the guide frame (5) is hollow, motors (10) are fixed on the inner walls on both sides of the guide frame (5), two motors (10) are diagonally distributed inside the guide frame (5), a docking shaft (11) is fixed to the output ends of the two motors (10), and a drive shaft (12) is provided at one end of the two docking shafts (11).

2. A dual-drive linear motion module for gantry according to claim 1, characterized in that: One end of the two driving shafts (12) is correspondingly rotatably connected to the inner wall of the guide frame (5), and a driving block (7) is slidably connected inside the guide frame (5).

3. A dual-drive linear motion module for gantry according to claim 2, characterized in that: The two drive shafts (12) are correspondingly slidably penetrated through the drive block (7), and a plurality of spring clamping plates (14) are fixed to one end of the two drive shafts (12) at equal intervals along the circumferential direction.

4. A dual-drive linear motion module for gantry according to claim 3, characterized in that: One end of the two docking shafts (11) is provided with a plurality of wedge-shaped openings (13) at equal intervals along the circumferential direction, and the plurality of spring clamping plates (14) extend correspondingly to the inside of the wedge-shaped openings (13).

5. A dual-drive linear motion module for gantry according to claim 4, characterized in that: The inner walls on one side of the plurality of wedge-shaped openings (13) are all inclined and extend to the outer surface of the docking shaft (11), and the inner walls on the other side of the plurality of wedge-shaped openings (13) are all vertical.

6. A dual-drive linear motion module for gantry according to claim 5, characterized in that: A through opening (8) is provided on one side of the guide frame (5), and a clamping bolt (9) is provided on one side of the driving block (7), with one end of the clamping bolt (9) extending to the outside of the through opening (8).

7. A dual-drive linear motion module for gantry according to claim 6, characterized in that: A base (2) is fixed at the bottom of the gantry body (1), a guardrail (4) is arranged at the top of the platform (3), and an opening (6) is provided at the top of the platform (3), wherein the opening (6) is located directly above the clamping bolt (9).

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