A telescopic hopper type portal crane welding tool

Abstract

The utility model relates to mechanical sling technical field, concretely relates to a telescopic hopper formula with gate machine welding frock, including base, the base left and right sides symmetry is provided with connecting rod, the connecting rod passes through base side wall and is connected with base sliding, and the inside of base is provided with adjusting assembly, adjusting assembly is used for adjusting the length that connecting rod is from base and projects, and one end of connecting rod is provided with moving plate outside base, and the moving plate is provided with the fixed component that is used for limiting sling telescopic arm on, this utility model discloses moving plate and the two fixed plates on upper clamping plate jointly form the clamping effect to sling telescopic arm, ensure that the gate machine sling telescopic arm keeps stable in the processing all the time, and can adjust the distance between two moving plates to adapt to the sling telescopic arm of different length.

Description

Technical Field

[0001] This utility model relates to the field of mechanical lifting equipment technology, specifically to a welding fixture for a telescopic hopper type machine with a hopper gate. Background Technology

[0002] In port cargo handling operations, telescopic hopper gantry cranes occupy a crucial position. Among them, the spreader boom, as one of the core components of the gantry crane, directly affects the overall performance and working efficiency of the equipment. In the manufacturing process of the spreader boom, the welding stage is of paramount importance. The quality of the welding has a decisive impact on the strength, stability, and service life of the boom. With the continued booming development of port operations, the market demand for gantry cranes is increasing daily, while the performance requirements are becoming increasingly stringent. Against this backdrop, spreader booms of different specifications are constantly emerging.

[0003] Currently, most existing welding fixtures for port machinery telescopic booms employ traditional fixed structure designs. These fixtures typically consist of a large welding platform and some simple clamps. Their working principle primarily involves fixing the telescopic boom to the welding platform using bolts and nuts. In actual operation, workers must manually adjust the position and angle of the telescopic boom and use clamps for initial fixation before commencing welding. During welding, the quality and precision largely depend on the worker's experience and skill level.

[0004] However, the aforementioned fixed-structure welding fixture has significant drawbacks. Due to its relatively fixed size and structure, it is difficult to make flexible adjustments, exposing numerous problems when dealing with telescopic booms of different specifications. When processing workpieces of different sizes, workers need to manually adjust the position and tightness of the clamps to fit the workpiece dimensions. This process is not only cumbersome but also consumes a significant amount of time and effort. More importantly, manual adjustment makes it difficult to ensure consistent adjustment accuracy each time, easily leading to unstable welding quality, which in turn affects the performance and service life of the telescopic boom, greatly reducing the ease of use of the welding fixture. Therefore, it is necessary to propose a telescopic hopper-type welding fixture for gantry cranes to effectively solve the problems existing in the aforementioned prior art. Summary of the Invention

[0005] To address the problems of existing port machinery spreader boom welding fixtures being mostly traditional fixed structures that rely on manual adjustment of the boom's position and angle, as well as clamp fixation, manual adjustment is cumbersome, time-consuming, and lacks precision when dealing with workpieces of different specifications. This results in unstable welding quality, affects the performance and lifespan of the spreader boom, and reduces ease of use. This invention proposes a retractable hopper-type gantry crane welding fixture. The moving plate and two fixed plates on the upper clamping plate work together to clamp the spreader boom, ensuring its stability during processing. Furthermore, the distance between the two moving plates can be adjusted to accommodate spreader booms of different lengths, improving the device's applicability.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A welding fixture for a telescopic hopper-type gantry crane includes a base. Connecting rods are symmetrically arranged on both sides of the base, passing through the side walls and slidably connected to the base. An adjustment assembly is installed inside the base to adjust the length of the connecting rods extending from the base. A movable plate is installed at the end of the connecting rod outside the base, and a fixing component is installed on the movable plate to limit the extension length of the lifting arm. The symmetrical and slidably connected connecting rods on both sides of the base, along with the adjustment assembly inside the base to adjust the extension length of the connecting rods, allow for flexible adjustment of the fixture size to accommodate different specifications of lifting arms, improving the fixture's versatility and adaptability. The fixing component facilitates the placement and fixation of the lifting arm, improving stability and reliability.

[0007] Furthermore, one end of the connecting rod located within the base is connected to the adjusting assembly. The adjusting assembly includes a transmission rod rotatably disposed within the base, with rotating rods symmetrically arranged on both sides of the transmission rod. One end of each rotating rod is fixedly connected to the transmission rod, and the other end is hinged to a connecting plate. The connecting plate is slidably disposed within the base and is fixedly connected to the connecting rod. One end of the connecting rod is connected to the adjusting assembly. In the adjusting assembly, rotating rods are symmetrically arranged on both sides of the transmission rod. The rotating rods are hinged to the connecting plate and fixed to the connecting rod. The rotation of the transmission rod drives the rotating rods, causing the connecting plate to slide, thus extending and retracting the connecting rod, resulting in stable and precise adjustment.

[0008] Furthermore, a drive assembly is provided on the top of the base. The drive assembly includes a fixed housing, a worm gear and a worm wheel rotatably disposed within the fixed housing, the worm gear and the worm wheel meshing together. One end of the worm gear passes through the fixed housing and is connected to a motor. The top end of a transmission rod passes through the base and the fixed housing in sequence and is connected to the worm wheel. The motor drives the worm gear, which in turn rotates the transmission rod to drive the adjustment assembly to adjust the distance between the two moving plates.

[0009] Furthermore, the fixing assembly includes an upper clamping plate, which is an n-shaped plate. One side of the open end of the upper clamping plate is hinged to a movable plate via a hinge. A groove is provided on the top of the movable plate, and limiting components are symmetrically distributed vertically within the groove of the upper clamping plate and the movable plate. The symmetrical distribution of limiting components on the upper clamping plate and the movable plate facilitates the placement and fixing of the lifting arm.

[0010] Furthermore, the limiting component includes two slide rails, on which a fixing plate is sleeved, and each of the two fixing plates is connected to a spring; a connecting post is fixedly connected to the top of the fixing plate located in the upper clamping plate, and the connecting post is slidably connected to the upper clamping plate, with one spring sleeved on the connecting post; a limiting post is also provided in the groove of the moving plate, and another spring is sleeved on the limiting post with its two ends fixedly connected to the fixing plate and the moving plate respectively.

[0011] Furthermore, a locking assembly is provided on the other side of the opening end of the upper clamping plate. The locking assembly includes two lugs respectively disposed on the moving plate and the upper clamping plate. One lug has a connecting block rotatably mounted on it, and the other lug has a sliding groove that cooperates with the connecting block. The rotatable connecting block and the cooperating sliding groove on the lugs of the moving plate and the upper clamping plate result in a simple and easy-to-operate structure that can quickly lock the upper clamping plate and the moving plate, ensuring the stable placement of the lifting arm during welding.

[0012] The beneficial effects of this utility model through the above technical solution are as follows: This utility model provides a welding fixture for a telescopic hopper type lifting machine with a hopper gate. The connecting rods, symmetrically arranged on both sides of the base, slide flexibly. The extension length of the connecting rods can be adjusted via an adjustment component within the base, thereby flexibly adjusting the fixture size to accommodate different specifications of the lifting telescopic boom, improving the fixture's versatility and adaptability. Simultaneously, the fixed component facilitates the placement and fixation of the lifting telescopic boom, improving the stability and reliability of the fixation.

[0013] In this utility model, the movable plate and the two fixed plates on the upper clamping plate work together to clamp the telescopic boom of the gantry crane, ensuring that the telescopic boom of the gantry crane remains stable during processing. This allows for convenient adaptive clamping of telescopic booms of different specifications, facilitating their processing. It solves the problem of manual adjustment required when processing telescopic booms of different specifications for gantry cranes. Compared with the manual adjustment of existing port machinery telescopic boom welding fixtures, it improves the convenience of the fixture.

[0014] In this invention, after the motor starts, it drives the worm gear to rotate. During the rotation of the worm gear, the worm wheel also rotates. The rotation of the worm wheel causes the transmission rod to rotate within the base. The rotation of the transmission rod then drives the rotating rods on both sides to rotate. The rotation of the rotating rods further causes the connecting plate to slide smoothly within the base. The sliding of the connecting plate, in turn, pulls the connecting rod to slide within the base, ultimately moving the moving plate. This allows for precise adjustment of the distance between the two moving plates to accommodate telescopic booms of different lengths. This invention solves the problem that existing port machinery telescopic boom welding fixtures are mostly traditional fixed structures, making it difficult to conveniently adjust for different telescopic booms, thus improving the applicability of the device. Attached Figure Description

[0015] Figure 1 This utility model relates to a three-dimensional welding fixture for a telescopic hopper type machine with a hopper gate. Figure 1 ; Figure 2 This utility model relates to a three-dimensional welding fixture for a telescopic hopper type machine with a hopper gate. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the base and fixed outer shell in the welding fixture of the telescopic hopper type machine with hopper gate of this utility model.

[0016] The numbers in the attached diagram are: 1. Base; 2. Connecting rod; 3. Moving plate; 4. Slide rail; 5. Upper clamping plate; 6. Fixed outer shell; 7. Connecting column; 8. Spring; 9. Hinge; 10. Sliding groove; 11. Connecting block; 12. Fixed plate; 13. Limiting column; 14. Connecting plate; 15. Rotating rod; 16. Motor; 17. Worm gear; 18. Worm wheel; 19. Transmission rod; 20. Lifting device telescopic arm. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-3 As shown, this embodiment provides a welding fixture for a telescopic hopper type machine with a bucket gate, including a base 1. Connecting rods 2 are symmetrically arranged on the left and right sides of the base 1. The connecting rods 2 pass through the side wall of the base 1 and are slidably connected to the base 1. An adjustment component is provided inside the base 1. The adjustment component is used to adjust the length of the connecting rods 2 extending from the base 1. A movable plate 3 is provided at one end of the connecting rod 2 outside the base 1. A fixing component is provided on the movable plate 3 for limiting the telescopic arm 20 of the lifting device.

[0018] The telescopic hopper type welding fixture provided by this utility model has connecting rods 2 symmetrically arranged on the left and right sides of the base 1 and slidably connected. The base 1 is provided with an adjustment component to adjust the extension length of the connecting rods 2, so that the size of the fixture can be flexibly adjusted to adapt to different specifications of lifting telescopic arms, thereby improving the versatility and adaptability of the fixture. The setting of the fixing component facilitates the placement and fixing of the lifting telescopic arm 20, thereby improving the stability and reliability of the fixing.

[0019] The base 1 is made of high-strength cast steel. Its structure has been optimized, and it has excellent stability and load-bearing capacity. It can withstand the pressure and impact generated by various operations during the welding process.

[0020] In this embodiment, one end of the connecting rod 2 located inside the base 1 is connected to the adjustment assembly. The adjustment assembly includes a transmission rod 19 rotatably disposed inside the base 1. Rotating rods 15 are symmetrically arranged on both sides of the transmission rod 19. One end of each rotating rod 15 is fixedly connected to the transmission rod 19, and the other end of each rotating rod 15 is hinged to a connecting plate 14. The connecting plate 14 is slidably disposed inside the base 1 and is fixedly connected to the connecting rod 2. One end of the connecting rod 2 is connected to the adjustment assembly. In the adjustment assembly, rotating rods 15 are symmetrically arranged on both sides of the transmission rod 19. The rotating rods 15 are hinged to the connecting plate 14 and fixed to the connecting rod 2. The rotation of the transmission rod 19 drives the rotating rods 15, causing the connecting plate 14 to slide, thereby extending and retracting the connecting rod 2, resulting in stable and precise adjustment.

[0021] Additionally, a drive assembly is provided on the top of the base 1. This drive assembly includes a fixed housing 6, a worm gear 17 and a worm wheel 18 rotatably disposed within the fixed housing 6, and the worm gear 17 and worm wheel 18 meshing together. One end of the worm gear 17 passes through the fixed housing 6 and is connected to a motor 16. The top end of a transmission rod 19 passes sequentially through the base 1 and the fixed housing 6 and is connected to the worm wheel 18. The motor 16 drives the worm gear 17 to drive the worm wheel 18, thereby causing the transmission rod 19 to rotate and drive the adjustment assembly to adjust the distance between the two moving plates 3, improving adjustment efficiency and accuracy, and reducing manual operation.

[0022] In this embodiment, the fixing component includes an upper clamping plate 5, which is an n-shaped plate. One side of the open end of the upper clamping plate 5 is hinged to the movable plate 3 via a hinge 9. The top of the movable plate 3 has a groove, and limiting components are symmetrically distributed vertically within the groove of the upper clamping plate 5 and the movable plate 3. The upper clamping plate 5 is hinged to the movable plate 3 via the hinge 9, and the limiting components are symmetrically distributed vertically on the upper clamping plate 5 and the movable plate 3, which facilitates the placement and fixing of the lifting telescopic arm 20.

[0023] In this embodiment, the limiting component includes two slide rails 4, with a fixing plate 12 mounted on both slide rails 4. Each fixing plate 12 is connected to a spring 8. A connecting post 7 is fixedly connected to the top of the fixing plate 12 located within the upper clamping plate 5, and the connecting post 7 is slidably connected to the upper clamping plate 5. One spring 8 is mounted on the connecting post 7. A limiting post 13 is also provided within the groove of the moving plate 3, and another spring 8 is mounted on the limiting post 13 with its two ends fixedly connected to the fixing plate 12 and the moving plate 3, respectively. The spring 8 provides buffering and limiting, preventing excessive compression and damage to the lifting boom 20. The slide rails 4 ensure stable and reliable sliding of the fixing plate 12.

[0024] In this embodiment, a locking assembly is provided on the other side of the opening end of the upper clamping plate 5. The locking assembly includes two lugs respectively disposed on the movable plate 3 and the upper clamping plate 5. A connecting block 11 is rotatably disposed on one lug, and a sliding groove 10 that cooperates with the connecting block 11 is provided on the other lug. The movable plate 3 and the upper clamping plate 5 are provided with a rotatable connecting block 11 and a cooperating sliding groove 10 on the lugs. The structure is simple and easy to operate, and it can quickly lock the upper clamping plate 5 and the movable plate 3, ensuring that the lifting telescopic arm 20 is stably placed during welding.

[0025] The working principle of this utility model is as follows: In actual welding operations of a port telescopic hopper gantry crane, the upper clamping plate 5 is opened, and the spreader telescopic arm 20 is placed on top of the fixed plate 12 located in the groove of the moving plate 3. At this time, the spring 8 located in the groove of the moving plate 3 is compressed. To prevent the spring 8 from being damaged due to excessive compression, the limiting post 13 limits the spreader telescopic arm 20. Then, the upper clamping plate 5 is closed by the hinge 9. During this process, the connecting block 11 passes through the sliding groove 10, and then the connecting block 11 is rotated to be perpendicular to the sliding groove 10, thereby locking the upper clamping plate 5. At the same time, the spreader telescopic arm 20 pushes the upper fixed plate 12 upward, thereby driving the connecting post 7 to move together, compressing the spring 8 located in the upper clamping plate 5. The spring 8 pushes the fixed plate 12 downward, so that the moving plate 3 and the two fixed plates 12 on the upper clamping plate 5 together form a clamping effect on the spreader telescopic arm 20, ensuring that the gantry crane spreader telescopic arm 20 remains stable during processing. In addition, the fixed plate 12 slides smoothly on the slide rail 4, which acts as a limit to ensure the smooth progress of the entire processing.

[0026] When welding is required on gantry crane telescopic booms 20 of different lengths, the operator can start the motor 16. After the motor 16 starts, it drives the worm gear 17 to rotate. During the rotation of the worm gear 17, the worm wheel 18 also rotates. The rotation of the worm wheel 18 causes the transmission rod 19 to rotate within the base 1. The rotation of the transmission rod 19 then drives the rotating rods 15 on both sides to rotate. The rotation of the rotating rods 15 further drives the connecting plate 14 to slide smoothly within the base 1. The sliding of the connecting plate 14 then pulls the connecting rod 2 to slide within the base 1, ultimately driving the moving plate 3 to move. This allows for precise adjustment of the distance between the two moving plates 3 to accommodate telescopic booms 20 of different lengths, ensuring the smooth progress of the welding work.

[0027] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A welding fixture for a telescopic hopper type machine with a hopper gate, comprising a base (1), characterized in that, The base (1) is symmetrically provided with connecting rods (2) on the left and right sides. The connecting rods (2) pass through the side wall of the base (1) and are slidably connected to the base (1). An adjustment component is provided inside the base (1). The adjustment component is used to adjust the length of the connecting rods (2) extending from the base (1). A movable plate (3) is provided at one end of the connecting rod (2) outside the base (1). A fixing component is provided on the movable plate (3) for limiting the telescopic arm (20) of the lifting device.

2. The welding fixture for a telescopic hopper type machine with hopper gate according to claim 1, characterized in that, The connecting rod (2) is connected to the adjustment assembly at one end inside the base (1). The adjustment assembly includes a transmission rod (19) rotatably disposed inside the base (1). Rotating rods (15) are symmetrically disposed on the left and right sides of the transmission rod (19). One end of the rotating rod (15) is fixedly connected to the transmission rod (19), and the other end of the rotating rod (15) is hinged to a connecting plate (14). The connecting plate (14) is slidably disposed inside the base (1), and the connecting plate (14) is fixedly connected to the connecting rod (2).

3. The welding fixture for a telescopic hopper type machine with hopper gate according to claim 2, characterized in that, The base (1) is provided with a drive assembly on its top. The drive assembly includes a fixed housing (6), a worm (17) and a worm wheel (18) rotatably disposed in the fixed housing (6). The worm (17) and the worm wheel (18) mesh with each other. One end of the worm (17) passes through the fixed housing (6) and is connected to a motor (16). The top end of the transmission rod (19) passes through the base (1) and the fixed housing (6) in sequence and is connected to the worm wheel (18).

4. The welding fixture for a telescopic hopper type machine with hopper gate according to claim 1, characterized in that, The fixing component includes an upper clamping plate (5), which is an n-shaped plate. The upper clamping plate (5) is hinged to the moving plate (3) on one side of its open end via a hinge (9). The top of the moving plate (3) has a groove, and the upper clamping plate (5) and the moving plate (3) have symmetrically distributed limiting components in the groove.

5. The welding fixture for a telescopic hopper type machine with hopper gate according to claim 4, characterized in that, The limiting assembly includes two slide rails (4), and a fixing plate (12) is fitted on both slide rails (4). The two fixing plates (12) are respectively connected to springs (8). A connecting post (7) is fixedly connected to the top of the fixing plate (12) located in the upper clamping plate (5). The connecting post (7) is slidably connected to the upper clamping plate (5). One of the springs (8) is fitted on the connecting post (7). A limiting post (13) is also provided in the groove of the moving plate (3). Another spring (8) is fitted on the limiting post (13) and its two ends are fixedly connected to the fixing plate (12) and the moving plate (3) respectively.

6. The welding fixture for a telescopic hopper type machine with hopper gate according to claim 4, characterized in that, A locking assembly is provided on the other side of the opening end of the upper clamping plate (5). The locking assembly includes two ear seats respectively disposed on the moving plate (3) and the upper clamping plate (5). A connecting block (11) is rotatably disposed on one of the ear seats, and a sliding groove (10) that cooperates with the connecting block (11) is opened on the other ear seat.

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