Component elevator transfer platform and positioning structure

Abstract

The utility model provides a component elevator transfer platform and positioning structure. The component elevator transfer platform positioning structure includes a top plate and a positioning pin. The top plate includes a positioning hole. The bottom of the positioning pin is inserted into and extends out of the positioning hole. The extended part is fixed by spot welding. The top diameter of the positioning hole is larger than the middle of the positioning pin and is fixed by a ring weld. The component elevator transfer platform includes a body composed of a rear outer plate, a rear inner plate, a left inner plate, a front outer plate, a front inner plate, a bottom plate and a top plate. The body is installed on the elevator transfer platform frame; the elevator transfer platform moves up and down by pushing the rear outer plate through a hydraulic cylinder power arm. After the utility model optimizes the positioning pin shaft structure, on the one hand, the welding amount is reduced, and the welding deformation is reduced; on the other hand, the contact area between the pin shaft and the hanging basket positioning is also increased accordingly, which provides better guarantee for the next step of hanging basket positioning accuracy and fixation.

Description

Technical Field

[0001] The utility model belongs to the technical field of nuclear power equipment, and particularly relates to a component hoist transfer platform and a positioning structure. Background Art

[0002] In recent years, the nuclear power industry has developed rapidly in response to the global energy crisis, and various non-standard equipment has been continuously improved to adapt to the special environment and space requirements of the nuclear power industry. The component transfer and lifting equipment is one of the key equipment in the spent fuel reprocessing, including component hoists, hanging baskets, hanging basket transfer long pole hoists, component lifting long pole tools, etc. In order to ensure the effective operation of the entire working system of the component transfer and lifting equipment, it is necessary to ensure the accuracy of the processing accuracy of the component hoists, hanging baskets, hanging basket transfer long pole hoists, component lifting long pole tools, etc., especially the matching dimensions between each other.

[0003] The existing positioning pin insertion structure of the car body plate is that during the operation of the equipment, the crane loads the hanging basket transfer long pole sling to fix the pin hole position of the hanging basket top plate with the positioning pin position of the component hoist transfer platform, and then the component hoist long pole tool realizes the opening and locking of the locking mechanism between the hanging basket and the transfer platform. Its manufacturing process is to leave a welding margin on the outer shape of the transfer platform car body, and then weld after welding and overall machining are completed. This process is easy to cause welding deformation to the finished car body, which in turn affects the installation and positioning process of the hanging basket and the car body. It is necessary to redesign a structure that can reduce the deformation of the welding positioning pin of the component transfer hoist car body. Summary of the invention

[0004] The purpose of the embodiment of the utility model is to provide a component hoist transfer platform positioning structure to achieve reliable connection and positioning between the hanging basket and the vehicle body;

[0005] Another object of the embodiment of the utility model is to provide a component hoist transfer platform.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] The component elevator transfer platform positioning structure includes a top plate and a positioning pin, the top of the positioning pin is a conical structure, the middle section and the bottom are both cylindrical, and the bottom diameter is smaller than the middle part; the top plate includes a positioning hole, the positioning hole is a stepped through hole with a top aperture larger than the bottom aperture, the bottom diameter of the positioning hole is equal to the bottom cylindrical diameter of the positioning pin, the bottom of the positioning pin is inserted into and extends out of the positioning hole, the extended part is fixed by spot welding, the top diameter of the positioning hole is larger than the middle part of the positioning pin and is fixed by a ring weld.

[0008] A component elevator transfer platform, comprising the above-mentioned component elevator transfer platform positioning structure, wherein the top plate of the component elevator transfer platform positioning structure is a rectangular flat plate with a rectangular opening on one side;

[0009] The component elevator transfer platform also includes a rear outer side plate and a front outer side plate, which are respectively connected to a set of opposite sides of the top plate that are not opened;

[0010] The rear inner side plate, the left inner side plate, and the front inner side plate are respectively connected to the edges inside the top plate opening;

[0011] The bottom plate is respectively connected with the outer plate, the front outer plate, the rear inner plate, the left inner plate, and the front inner plate;

[0012] The vertical projection of the bottom plate has the same shape as that of the top plate.

[0013] Further, it includes a hanging basket, the top of which is a rectangular hollow panel, the length and width of which are greater than the length and width of the opening of the top plate and smaller than the length and width of the top plate; the central control panel includes a hanging hook and a positioning hole corresponding to the positioning hole of the top plate;

[0014] The main body of the hanging basket is a slender rectangular parallelepiped structure, and the length and width of the horizontal cross section are smaller than the length and width of the top plate opening.

[0015] Furthermore, the central axis of the rear outer side plate is close to the bottom edge position of the push-pull box, and the push-pull box is connected to the hydraulic cylinder power arm to transmit the kinetic energy of the hydraulic cylinder power arm to drive the component elevator transfer platform to move.

[0016] Furthermore, three pressing plate mechanisms are arranged on the top plate, distributed on each side of the top plate, for fixing the hanging basket.

[0017] Furthermore, two lifting rings are arranged on the top plate, and a lifting hook is arranged on the front outer side plate.

[0018] Furthermore, it also includes an elevator transfer platform frame, which includes a chassis and wheels, and is fixed to the elevator transfer platform frame through an elevator body fixing rod; the bottom plate is placed on the elevator transfer platform frame chassis.

[0019] The beneficial effects of the utility model are as follows:

[0020] Reduce welding volume and welding deformation: The optimized positioning pin structure reduces unnecessary welding processes and effectively avoids the deformation of the vehicle body structure caused by welding operations by improving the design and manufacturing process. It improves the original processing accuracy of the vehicle body, simplifies the production process, and also improves the overall quality and service life of the equipment.

[0021] Improve positioning accuracy and stability: The new positioning pin structure increases the contact area with the positioning part of the hanging basket, enhances the fit and connection strength between the two, and thus greatly improves the positioning accuracy of the hanging basket during installation and transportation. This improvement helps to ensure that the locking between the hanging basket and the component hoist transfer platform is more stable and reliable, fundamentally reducing the safety hazards caused by inaccurate positioning, and improving the operating efficiency and safety of the entire component transfer and lifting system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a front view of the body of the elevator transfer platform in this embodiment.

[0024] Figure 2 It is a left view of the body of the elevator transfer platform in this embodiment.

[0025] Figure 3 It is a top view of the elevator transfer platform body in this embodiment.

[0026] Figure 4 This is a diagram of the power connection interface between the elevator transfer platform body and the hydraulic cylinder.

[0027] Figure 5 It is a schematic diagram of the fixed connection between the transfer platform body and the hanging basket of the component transfer elevator, wherein (a) is the overall view of the transfer platform body and the hanging basket, and (b) is an enlarged view of the transfer platform part.

[0028] Figure 6 It is a schematic diagram comparing the welding method between the locating pin and the top plate before and after optimization, where (a) is the connection method between the top plate and the locating pin before optimization, and (b) is the connection method between the top plate and the locating pin after optimization.

[0029] In the figure, 1, push-pull box; 2, rear outer plate; 3, rear inner plate; 4, top plate; 5, left inner plate; 6, front outer plate; 7, front inner plate; 8, bottom plate; 9, lifting ring; 10, lifting hook; 11, positioning pin; 12, pressure plate mechanism; 13, elevator transfer platform body; 14, hanging basket; 15, elevator body fixing rod; 16, elevator transfer platform frame; 17, hydraulic cylinder power arm; 18, elevator transfer platform running rail. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] like Figure 4 The elevator described in the utility model is located in the component lifting pool. The components placed in the hanging basket 14 are transported and lifted to the bottom of the shearing hot chamber through the transfer platform installed on the frame at an angle of 46.2° to the ground, so that the shearing machine gripper can grab the components. The hanging basket 14 is a device used by the transfer component to transfer components. When the equipment is running, the pin hole positions of the hanging basket 14 and the top plate 4 are fixed with the position of the locating pin 11 of the transfer platform of the component elevator, and then the locking mechanism of the elevator transfer platform is opened and locked. Therefore, the position of the locating pin 11 is crucial to the entire working system of the component transfer and lifting equipment.

[0032] In order to ensure that the installation and positioning process of the hanging basket 14 and the vehicle body is not affected by the deformation of the welding part of the positioning pin 11, the present embodiment is provided with the following structure:

[0033] like Figures 1 to 3 The lifting machine body of the present embodiment comprises a body frame consisting of a rear outer plate 2, a rear inner plate 3, a top plate 4, a left inner plate 5, a front outer plate 6, and a front inner plate 7. The top plate 4 is a door-shaped structure, with a lifting ring 9 on each side, and a lifting hook 10 on the front outer plate 6; the lifting ring 9 and the lifting hook 10 can complete the lifting and transportation of the transfer platform; the top plate 4 is provided with a plurality of positioning pins 11, and the positioning pins 11 are the fixed connection positions of the lifting machine transfer platform body 13 and the hanging basket 14. The position and size of the positioning pins 11 in the present embodiment are as follows: Figure 1 , with the center line of the push-pull box 1 and the center line of the top plate 4 as the reference, the position size is 100±0.1mm and 390±0.2mm, and the specific position and size can be set as needed. Three pressing plate mechanisms 12 are also set on the top plate 4, distributed on each side of the top plate 4. After the component transfer elevator transfer platform body 13 and the hanging basket 14 are positioned, the pressing plate mechanism 12 is used to complete the fixation of the pressing plate mechanism 12 and the hanging basket 14 to ensure the stability of the body during transportation. A push-pull box 1 is set on the rear outer side plate 2, and the push-pull box 1 is a hydraulic cylinder power connection interface.

[0034] like Figure 4The elevator transfer platform fixes the bottom plate 8 and the elevator transfer platform frame 16 through the elevator body fixing rod 15. The transfer platform frame includes a chassis and wheels. When the hanging basket 14 is fixed, the hydraulic cylinder power arm 17 pushes the push-pull box 1, and the transfer platform moves along the elevator transfer platform running guide rail 18 to realize the rising and falling action of the elevator transfer platform.

[0035] In order to ensure that the entire working system of the component transfer and lifting equipment can operate effectively, the processing procedures need to be considered during the manufacturing process of the transfer platform body: first complete the basic shape welding of the push-pull box 1, rear outer panel 2, rear inner panel 3, top panel 4, left inner panel 5, front outer panel 6, and front inner panel 7 and ensure sufficient post-welding processing allowance; the lifting ring 9, lifting hook 10, locating pin 11, and pressure plate mechanism 12 are then welded to the finished body. The welding process needs to reduce welding deformation and a welding method with smaller deformation is adopted.

[0036] Figure 5 The figure is a schematic diagram of the fixed connection between the transfer platform body 13 of the component transfer hoist and the hanging basket 14, wherein the main body of the hanging basket 14 is a slender rectangular structure with a length × width × height of 4272 × 450 × 450 mm, and a square panel is set on the top of the hanging basket 14 for fixing it with a pressure plate, and a hoisting hook and a positioning hole are also set on the panel. When the positioning pins 11 on the top plate 4 are welded and the size and position meet the requirements, the top panel of the hanging basket 14 can be positioned and installed through the positioning holes, and at the same time, the internal transfer components of the hanging basket 14 are ensured to be safe and not leaked.

[0037] Figure 6 Schematic diagrams before and after optimization of the welding method between the positioning pin 11 and the top plate 4. Figure 6 Figure a shows the connection mode between the front car body top plate 4 and the positioning pin 11. The welding part of the positioning pin 11 is where the positioning pin 11 is inserted into the top plate 4. Considering the manufacturing process, a welding margin is left in the outer shape of the transfer platform car body. After welding and overall machining are completed, welding is performed. This process is likely to cause welding deformation to the finished car body, thereby affecting the installation and positioning process of the hanging basket 14 and the car body. Figure 6 Figure b shows the connection mode between the top plate 4 and the positioning pin 11 after optimization. The welding part of the positioning pin 11 is that the positioning pin 11 passes through the top plate 4 structure as a whole. One end adopts a circumferential weld and is ground flat after welding, and the other end is fixed by spot welding. Compared with Figure a, this welding structure reduces the welding amount, and the welding process is fixed and limited by the top plate 4, so the deformation is easy to control. It is also conducive to post-welding grinding and reduces the damage to the finished parts of the component transfer hoisting locomotive body.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. The component hoist transfer platform positioning structure is characterized by: The invention comprises a top plate (4) and a positioning pin (11), wherein the top of the positioning pin (11) is a conical structure, and the middle section and the bottom are both cylindrical, wherein the bottom diameter is smaller than the middle section; the top plate (4) comprises a positioning hole, wherein the positioning hole is a stepped through hole with a top hole diameter larger than a bottom hole diameter, and the bottom diameter of the positioning hole is equal to the bottom cylindrical diameter of the positioning pin (11); the bottom of the positioning pin (11) is inserted into and extends out of the positioning hole, and the extending portion is fixed by spot welding; the top diameter of the positioning hole is larger than the middle section of the positioning pin (11) and is fixed by a girth weld.

2. Component elevator transfer platform, characterized in that: It comprises the component elevator transfer platform positioning structure as claimed in claim 1; the top plate (4) of the component elevator transfer platform positioning structure is a rectangular flat plate with a rectangular opening on one side; The component elevator transfer platform further comprises a rear outer side plate (2) and a front outer side plate (6), which are respectively connected to a set of opposite sides of the top plate (4) that are not opened; The rear inner plate (3), the left inner plate (5), and the front inner plate (7) are respectively connected to the edges inside the opening of the top plate (4); The bottom plate (8) is respectively connected to the rear outer plate (2), the front outer plate (6), the rear inner plate (3), the left inner plate (5), and the front inner plate (7); The vertical projection of the bottom plate (8) has the same shape as the top plate (4).

3. The component elevator transfer platform according to claim 2, characterized in that: It comprises a hanging basket (14), the top of the hanging basket (14) is a rectangular hollow panel, the length and width of which are both greater than the length and width of the opening of the top plate (4) and smaller than the length and width of the top plate (4); the hollow panel comprises a hanging hook and a positioning hole corresponding to the positioning hole of the top plate (4); The main body of the hanging basket (14) is a slender rectangular parallelepiped structure, and the length and width of the horizontal cross section are smaller than the length and width of the opening portion of the top plate (4).

4. The component elevator transfer platform according to claim 2, characterized in that: The push-pull box (1) is located near the bottom edge of the central axis of the rear outer plate (2), and the push-pull box (1) is connected to the hydraulic cylinder power arm (17) and is used to transmit the kinetic energy of the hydraulic cylinder power arm (17) to drive the component hoist transfer platform to move.

5. The component elevator transfer platform according to claim 2, characterized in that: Three pressing plate mechanisms (12) are arranged on the top plate (4), distributed on each side of the top plate (4), and are used to fix the hanging basket (14).

6. The component elevator transfer platform according to claim 2, characterized in that: Two lifting rings (9) are provided on the top plate (4), and a lifting hook (10) is provided on the front outer side plate (6).

7. The component elevator transfer platform according to claim 2, characterized in that: It also includes an elevator transfer platform frame (16), the elevator transfer platform frame (16) including a chassis and wheels, and is fixed to the elevator transfer platform frame (16) via an elevator body fixing rod (15); the bottom plate (8) is placed in close contact with the chassis of the elevator transfer platform frame (16).

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