A double-position gantry differential pressure casting main machine heavy component conveying device

Abstract

This invention discloses a gantry-type dual-station differential pressure casting main machine major component conveying device, including a left column, a right column, a fixed crossbeam, and a horizontal feeding mechanism. The left column, right column, and fixed crossbeam are bolted together to form a gantry frame. The gantry frame is divided into two areas, namely the upper tank and the sand mold, i.e., two workstations, used to transport the sand mold and the upper tank respectively. The sand mold workstation can perform the actions of grabbing, lifting, and detaching the sand mold, specifically including a U-shaped moving beam, a left-side insertion and removal pin mechanism, a right-side insertion and removal pin mechanism, a sand mold vertical lifting mechanism, and a sand mold safety insertion and removal pin mechanism. The device for transporting the upper tank does not require the upper tank to detach from the gantry, and includes the upper tank vertical lifting mechanism and the upper tank safety insertion and removal pin mechanism, etc. This gantry conveying device can simultaneously complete the horizontal and vertical transportation of the sand mold and the upper tank, as well as the horizontal and longitudinal grabbing of the sand mold. The layout of a single gantry dual-station makes the equipment compact and saves equipment space.

Description

Technical Field

[0001] This invention belongs to the field of automated transportation equipment, specifically a gantry-type dual-station differential pressure casting main machine major component transportation device. Background Technology

[0002] Currently, with the rapid development of industries such as aerospace, rail transportation, and wind power generation, and given the high temperatures and various harmful gases, dust, fumes, and noise generated during the casting process, improving the automation level of casting equipment is crucial. This not only enhances the quality and stability of cast products but also improves production efficiency and operator safety. The automated transportation and installation of large-volume, high-mass critical components is becoming increasingly important, especially in the differential pressure casting field. Traditional transportation and installation methods involve operators using overhead cranes or hoists on-site, which is not only time-consuming and labor-intensive but also creates a harsh working environment that negatively impacts operator health. Summary of the Invention

[0003] To address the aforementioned problems, the present invention aims to provide a gantry-type dual-station differential pressure casting main machine major component transport device. By utilizing the gantry transport device, automated transport of the upper tank and sand mold can be achieved, which can improve casting production efficiency, speed up the casting process cycle, and ensure the safety and health of operators.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This invention discloses a gantry-type dual-station differential pressure casting main machine major component conveying device, including a left column, a right column, a fixed crossbeam, a horizontal feed mechanism, rollers, heavy-duty steel rails, a sand mold, and an upper tank; the left column, right column, and fixed crossbeam are bolted together to form a gantry frame; rollers are installed at the bottom of the left and right columns, and heavy-duty steel rails are installed on the ground foundation, with the rollers mounted above the heavy-duty steel rails; the horizontal feed mechanism is installed with one side of the rollers, and the horizontal feed mechanism includes a motor, a reducer, a drive wheel, and a sleeve roller chain; the motor is directly connected to the reducer, and the reducer is connected to the drive wheel through a sprocket and a sleeve roller chain, thereby enabling the drive rollers to move horizontally;

[0006] The sand mold includes a U-shaped moving beam, a left-side pin, a right-side pin, a vertical lifting mechanism for the sand mold, and a safety pin for the sand mold. The vertical lifting mechanism consists of linear guide rails and hydraulic cylinders. Linear guide rails and hydraulic cylinders are installed on the left and right sides of the sand mold, i.e., inside the left and right column frames, respectively. Slider blocks of the linear guide rails are installed at both ends of the U-shaped moving beam, forming a kinematic pair with the linear guide rails fixed to the left and right columns. The piston rods of the hydraulic cylinders installed inside the left and right columns are connected to the U-shaped moving beam, driving the U-shaped moving beam to move up and down. The U-shaped moving beam can move up and down. The left-side pin and right-side pin are installed at both ends of the bottom of the U-shaped moving beam, cooperating with the sand mold to grasp or release it. The safety pins for the sand mold are installed on the upper part of the left and right columns, respectively, and realize the extension and retraction movement of the cylindrical pins under the drive of the hydraulic cylinders. When the U-shaped moving beam reaches the upper limit position, the insertion and extraction action is realized to ensure that the sand mold does not fall during transportation.

[0007] The upper tank includes a vertical lifting mechanism and a safety pin. The vertical lifting mechanism is also composed of a hydraulic cylinder and a linear guide rail. Driven by the hydraulic cylinder, the upper tank can rise and fall guided by the linear guide rail. The safety pin is located on the upper part of each of the left and right columns. Driven by the hydraulic cylinder, the cylindrical pin moves in extension and retraction. When the upper tank reaches the upper limit position, the insertion and removal action is realized to ensure that the upper tank does not fall during transportation.

[0008] Furthermore, the gantry conveying device can simultaneously transport the sand mold and the upper tank horizontally, thereby realizing the lifting and lowering movements of the sand mold and the upper tank in sequence.

[0009] Furthermore, the upper tank and the gantry frame form an integral whole, and the upper tank can move up and down on the gantry frame.

[0010] Furthermore, the sand mold can be combined with and detached from the gantry frame, and the sand mold can move up and down on the gantry frame. The left and right pins are used to grab and separate the sand mold by inserting and pulling.

[0011] This invention offers the following advantages: The gantry-type dual-station differential pressure casting main machine's major component conveying device utilizes horizontal drive synchronization technology for the left and right columns. This involves two variable frequency motors, each connected to a reducer, which drives rollers at the bottom of the left and right columns via drive sprockets and chains. This drives the gantry to move horizontally along the track. The chain employs tensioning technology, and the rollers and track utilize positioning and small-clearance fit technology, solving the problems of horizontal and synchronous gantry movement. The upper tank has a cylindrical structure, while the sand mold has a cylindrical or cubic structure. Therefore, both lifting movements are driven simultaneously by two cylinders on both sides. To ensure synchronous hydraulic system operation, a synchronous flow valve is added to guarantee consistent piston movement. The left and right side pins and the safety pin mechanism's actuators are all cylindrical pins subjected to shear force. The diameter is calculated based on the load weight to ensure safety and reliability. This invention employs a single gantry dual-station structure, resulting in high production efficiency, structural stability, and good synchronization. The gripping and detaching actions of the sand mold are flexible and reliable. The integrated design of the upper tank and gantry reduces and shortens the cycle time of the casting preparation stage.

[0012] This invention enables sand mold grabbing, transporting and detaching, as well as transporting the upper tank, with simple and reliable operation. The symmetrical design of each component of the gantry makes the gantry structure more stable, and the transport of sand molds and upper tanks is reliable and flexible, avoiding the gantry from tipping over when working under heavy loads or returning quickly. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a top sectional view of the present invention;

[0017] Figure 3 This is a cross-sectional view of the present invention.

[0018] In the figure, there is a fixed crossbeam (1), a sand mold safety pin (2), an upper tank safety pin (3), a sand mold vertical lifting mechanism (4), an upper tank vertical lifting mechanism (5), a U-shaped moving beam (6), a roller (7), a heavy-duty steel rail (8), a horizontal feeding mechanism (9), a left column (10), a right column (11), a left side pin (12), a right side pin (13), a sand mold (14), and an upper tank (15). Detailed Implementation

[0019] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figure 1To be continued Figure 3 The detailed description of the embodiments will make this clear. All structural details mentioned in the following embodiments are based on the accompanying drawings.

[0020] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0021] The gantry-type dual-station differential pressure casting main machine major component conveying device provided by this invention mainly solves the problem of automated and reliable transportation of sand molds and upper tanks. The solution is to use a gantry conveying device to simultaneously realize the horizontal X-axis transportation of sand molds and upper tanks. At the same time, there are two stations on the gantry, one for sand molds and one for upper tanks. The sand molds and upper tanks can independently complete the Y-axis lifting and lowering movements at their respective stations.

[0022] 1. For example Figure 1 , 2 As shown in Figure 3, the gantry-type dual-station differential pressure casting main machine major component conveying device provided by the present invention includes a left column 10, a right column 11, a fixed crossbeam 1, a horizontal feeding mechanism 9, rollers 7, heavy-duty steel rails 8, a sand mold 14, and an upper tank 15; the left column 10, the right column 11, and the fixed crossbeam 1 are bolted together to form a gantry frame; rollers 7 are installed at the bottom of the left column 10 and the right column 11, and heavy-duty steel rails 8 are installed on the ground foundation. The heavy-duty steel rails 8 are the basic components, and the rollers 7 are installed above the heavy-duty steel rails 8. The rollers 7 and the parts above them can move horizontally on the heavy-duty steel rails 8 to realize the horizontal (X-direction) feeding motion of the gantry. The horizontal feeding mechanism 9 is installed with the rollers 7 on one side. The horizontal feeding mechanism 9 includes a motor, a reducer, a drive wheel, and a sleeve roller chain. The motor is directly connected to the reducer, and the reducer is connected to the drive wheel through a sprocket and a sleeve roller chain, thereby realizing the horizontal movement of the drive roller.

[0023] The sand mold 14 includes a U-shaped moving beam 6, a left-side pin 12, a right-side pin 13, a sand mold vertical lifting mechanism 4, and a sand mold safety pin 2. The sand mold vertical lifting mechanism 4 consists of linear guide rails and hydraulic cylinders. Linear guide rails and hydraulic cylinders are installed on the left and right sides of the sand mold, i.e., inside the left and right column frames, respectively. Slider blocks of linear guide rails are installed at both ends of the U-shaped moving beam 6, forming a kinematic pair with the linear guide rails fixed to the left column 10 and right column 11. The piston rod of the hydraulic cylinder is connected to the U-shaped moving beam, driving the U-shaped moving beam to move up and down. The U-shaped moving beam 6 can move up and down. The left pin 12 and the right pin 13 are installed at the bottom ends of the U-shaped moving beam 6 and cooperate with the sand mold to grasp or release the sand mold. The sand mold safety pin 2 is installed on the upper part of the left column 10 and the right column 11 respectively. Under the drive of the hydraulic cylinder, the cylindrical pin moves to extend and retract, and when the U-shaped moving beam 6 reaches the upper limit position, the insertion and extraction action is realized to ensure that the sand mold 14 does not fall off.

[0024] The upper tank 15 includes an upper tank vertical lifting mechanism 5 and an upper tank safety pin 3. The upper tank vertical lifting mechanism 5 is also composed of a hydraulic cylinder and a linear guide rail. Driven by the hydraulic cylinder, the upper tank 15 can rise and fall guided by the linear guide rail. The upper tank safety pin 3 is located on the upper part of the left and right columns respectively. Driven by the hydraulic cylinder, the cylindrical pin moves in extension and retraction. When the upper tank 15 reaches the upper limit position, the insertion and removal action is realized to ensure that the upper tank does not fall off.

[0025] The clearance between the pins of the left side pin 12 and the right side pin 13 and the positioning hole of the sand mold 14 is appropriate. If the clearance is too large, the sand mold will tend to tip over when transporting it. If the clearance is too small, the pins will not be able to be inserted into the positioning hole of the sand mold due to the cumulative error of processing and assembly. The pins will bear the shear stress generated by the weight of the sand mold.

[0026] This invention employs a gantry conveyor system to transport the sand mold and the upper tank, improving production efficiency, reducing costs, and ensuring operator safety. Furthermore, the overall equipment layout is compact and space-saving. Addressing the different structures and functions of the sand mold and the upper tank, the upper tank can be attached to and detached from the sand mold by moving horizontally and vertically without detaching from the gantry structure. Since the sand mold needs to be covered by the upper tank during operation and detached when not in operation, a pin-and-pick mechanism is used to grip and separate the sand mold from the gantry. The upper tank and sand mold are on the same gantry frame, thus sharing a common horizontal feeding mechanism.

[0027] In summary, this invention employs gantry-type dual-station transportation technology for casting critical components, along with upper tank detachment technology and sand mold detachment technology, thereby improving the utilization rate and production efficiency of the gantry transportation device. Furthermore, it utilizes symmetrical guidance and drive technology tailored to the symmetrical structure of the sand mold and upper tank, ensuring smooth and reliable movement. The symmetrical drive technology exhibits good synchronization, and the safety pin technology for the upper tank reduces or avoids falls caused by hydraulic system instability during horizontal transportation or when the upper tank is not in operation.

[0028] The above is a further detailed description of the present invention in conjunction with specific embodiments. It should not be considered that the specific implementation of the present invention is limited to this. For those skilled in the art to which the present invention pertains and related fields, any extensions, operation methods, and data substitutions made based on the technical solution concept of the present invention should fall within the protection scope of the present invention.

Claims

1. A gantry-type dual-station differential pressure casting main machine major component conveying device, characterized in that: The system includes a left column (10), a right column (11), a fixed crossbeam (1), a horizontal feed mechanism (9), rollers (7), heavy-duty rails (8), a sand mold (14), and an upper tank (15). The left column (10), right column (11), and fixed crossbeam (1) are connected by bolts to form a gantry frame. Rollers (7) are installed at the bottom of the left column (10) and right column (11), and heavy-duty rails (8) are installed on the ground. The rollers (7) are installed above the heavy-duty rails (8). The horizontal feed mechanism (9) is installed with the rollers (7) on one side. The horizontal feed mechanism (9) includes a motor, a reducer, a drive wheel, and a sleeve roller chain. The motor is directly connected to the reducer, and the reducer is connected to the drive wheel through a sprocket and a sleeve roller chain, thereby enabling the drive roller to move horizontally. The sand mold (14) includes a U-shaped moving beam (6), a left-side pin (12), a right-side pin (13), a sand mold vertical lifting mechanism (4), and a sand mold safety pin (2). The sand mold vertical lifting mechanism (4) consists of linear guide rails and hydraulic cylinders. Linear guide rails and hydraulic cylinders are installed on the left and right sides of the sand mold (14), i.e., on the inner sides of the frame of the left column (10) and the right column (11). Slider blocks of linear guide rails are installed at both ends of the U-shaped moving beam (6), forming a kinematic pair with the linear guide rails fixed on the left column (10) and the right column (11). (11) The piston rod of the inner cylinder is connected to the U-shaped moving beam, driving the U-shaped moving beam to move up and down. The U-shaped moving beam (6) can move up and down. The left pin (12) and the right pin (13) are installed at both ends of the bottom of the U-shaped moving beam (6) and cooperate with the sand mold to grab or detach the sand mold. The sand mold safety pin (2) is installed on the upper part of the left column (10) and the right column (11) respectively. Under the drive of the cylinder, the cylindrical pin can move back and forth. When the U-shaped moving beam (6) reaches the upper limit position, the insertion and extraction action is realized to ensure that the sand mold (14) does not fall safely during transportation. The upper tank (15) includes an upper tank vertical lifting mechanism (5) and an upper tank safety pin (3). The upper tank vertical lifting mechanism (5) is also composed of a hydraulic cylinder and a linear guide rail. Under the drive of the hydraulic cylinder, the upper tank (15) can rise and fall with the linear guide rail as the guide. The upper tank safety pin (3) is located on the upper part of the left and right columns respectively. Under the drive of the hydraulic cylinder, the cylindrical pin can be extended and retracted. Then, when the upper tank (15) reaches the upper limit position, the insertion and removal action is realized to ensure that the upper tank (15) will not fall safely during transportation. The sand mold (14) can be combined with and separated from the gantry frame. The sand mold (14) can move up and down in the gantry frame. The left pin (12) and the right pin (13) are used to grab and separate the sand mold (14) by inserting and pulling. The upper tank (15) and the sand mold (14) are transported using the same gantry structure, namely a double-station gantry structure. The structure is compact, which greatly saves equipment space and improves the utilization rate and reliability of the gantry device. The upper tank (15) does not detach from the gantry and the sand mold (14) detaches from the gantry, which shortens the casting preparation time and improves work efficiency. The symmetrical guidance and drive technology is adopted for the symmetrical structure of the sand mold (15) and the upper tank (14), so that the movement is smooth and reliable.

2. The gantry-type dual-station differential pressure casting main machine major component conveying device according to claim 1, characterized in that: The gantry conveying device can simultaneously transport the sand mold (14) and the upper tank (15) horizontally, thereby realizing the lifting and lowering movements of the sand mold and the upper tank in sequence.

3. The gantry-type dual-station differential pressure casting main machine major component conveying device according to claim 1, characterized in that: The upper tank (15) and the gantry frame form an integral whole, and the upper tank can move up and down on the gantry frame.

Images