Mold handling tool for centrifugal casting of a hob ring

Abstract

The utility model belongs to the hob ring production equipment application technical field, especially related to a mould handling frock for centrifugal casting of hob ring. Including the snatch board, be provided with push -and -pull air cylinder on the snatch board, the output of push -and -pull air cylinder is connected with rotary motor seat, be provided with rotary motor on rotary motor seat, the power end of rotary motor is set down and is connected with snatch pole to the power end of rotary motor, the snatch pole includes the horizontal pole connected with rotary motor and the vertical pole of setting in the horizontal pole far from rotary motor one end, the vertical pole is set up to L type, the utility model discloses a snatch board is provided with push -and -pull air cylinder, rotary motor and snatch pole and realizes the snatch of two kinds of states of the hob ring mould, and then makes it satisfy the use under a variety of conditions, at the same time, through the setting of handling frock, only one staff can operate, and need not consider the problem of moving space.

Description

Technical Field

[0001] This utility model belongs to the field of application technology of hobbing cutter ring production equipment, and particularly relates to a mold handling fixture for centrifugal casting of hobbing cutter rings. Background Technology

[0002] In the tunneling process of large trenchless construction equipment such as tunnel boring machines (TBMs), the cutterhead is a key component that directly contacts the rock. The cutterhead drives the cutterhead to rotate, and the cutterhead presses against the rock surface under the thrust of the equipment. The cutterhead rotates around its own axis while revolving around the cutterhead. The cutting edge of the cutterhead generates a rolling cutting action on the rock surface, squeezing out a groove in the rock and generating initial tensile cracks around the groove. As the cutterhead continues to penetrate, the wedge-shaped surface of the cutterhead shears and breaks the rock on both sides of the cutterhead. Under this tensile failure, larger rock blocks are broken off from the rock ridges between adjacent cuts, thus breaking the rock and creating conditions for tunnel excavation.

[0003] The existing production processes for hobbing cutter rings are mainly divided into two types: forging and centrifugal casting. Centrifugal casting mainly uses a mold to centrifuge the casting liquid into shape. After obtaining the required hobbing cutter ring, it is then heat-treated.

[0004] Centrifugal casting requires centrifugal molds. Existing centrifugal molds for hobbing cutter rings consist of an upper mold and a lower mold. During transportation, forklifts are mainly used for moving the molds. Although forklifts can move the molds, they require at least one driver and one worker to operate. In addition, forklifts require a certain amount of turning and moving space, which results in a large requirement for the factory. Utility Model Content

[0005] This utility model addresses the technical problems existing in the handling of hobbing cutter ring molds by proposing a reasonable, simple, and easy-to-use mold handling fixture for centrifugal casting of hobbing cutter rings.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a mold handling fixture for centrifugal casting of hobbing cutter rings, including a gripping plate. A push-pull cylinder is provided on the gripping plate. The output end of the push-pull cylinder is connected to a rotary motor base. A rotary motor is provided on the rotary motor base. The power end of the rotary motor is arranged downwards and connected to a gripping rod. The gripping rod includes a horizontal rod connected to the rotary motor and a vertical rod arranged at the end of the horizontal rod away from the rotary motor. The vertical rod is L-shaped. A through groove for the rotary motor base to travel is provided on the gripping plate. The fixed end of the push-pull cylinder is arranged close to the center of the gripping plate. Three push-pull cylinders are provided on the gripping plate, and the included angle between the push-pull cylinders is 120°.

[0007] Preferably, an electric hoist is connected to the top of the gripping plate.

[0008] Preferably, a traveling trolley is provided on the top of the gripping plate, and frames are provided on both sides of the gripping plate. The traveling trolley travels on the frames, and the gripping plate is raised and lowered and positioned below the traveling trolley.

[0009] Preferably, the frame includes a bottom support frame, intermediate frames disposed on both sides of the bottom support frame, and a traveling frame disposed on top of the intermediate frames. The traveling trolley travels on the traveling frame, and the gap between the two intermediate frames forms a moving channel for the gripping plate.

[0010] Preferably, the walking frame is suspended on both sides.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This utility model provides a mold handling fixture for centrifugal casting of hobbing cutter rings. By setting a push-pull cylinder, a rotary motor, and a gripping rod on the gripping plate, it can grasp the cutter ring mold in two states, thus meeting the needs of use in multiple situations. At the same time, thanks to the design of the handling fixture, only one operator is required to operate it, and there is no need to consider the issue of movement space. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the mold handling fixture for centrifugal casting of hobbing cutter rings provided in Example 1; Figure 2 This is a structural schematic diagram of the mold handling fixture for centrifugal casting of the hobbing cutter ring provided in Example 1 from another angle. Figure 3 This is a schematic diagram of the structure of the handling fixture for gripping the hobbing cutter ring provided in Example 1; Figure 4 This is a schematic diagram of another form of the handling fixture provided in Example 1 for gripping the hobbing cutter ring; Figure 5 A diagram showing the usage status of the handling fixture provided in Example 1; In the above figures, 1. Walking trolley; 11. Walking plate; 12. Walking motor; 13. Slider; 2. Gripping plate; 21. Through slot; 22. Guide plate; 3. Push-pull cylinder; 4. Rotary motor base; 5. Tilting motor; 6. Gripping rod; 61. Horizontal rod; 62. Vertical rod; 7. Adjusting cylinder; 8. Frame; 81. Bottom support frame; 82. Intermediate frame; 83. Walking frame; 9. Cutter ring mold. Detailed Implementation

[0014] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0015] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0016] Example 1, such as Figures 1-5 As shown, this embodiment aims to solve the problems of large footprint and low efficiency in the transportation of existing hob cutter ring molds 9. To this end, the hob cutter ring centrifugal casting mold handling fixture provided in this embodiment includes a gripping plate 2, which mainly serves as a base. In this embodiment, the gripping plate 2 is set in a disc shape. Considering that the existing die ring mold 9 mainly includes an upper mold and a lower mold, with a casting hole provided on the upper mold, in order to enable the die ring mold 9 to be fixed from the angle of the upper mold or the lower mold during handling, in this embodiment, a push-pull cylinder 3 is provided on the gripping plate 2. The fixed end of the push-pull cylinder 3 is located near the center of the gripping plate 2, that is, the output end of the push-pull cylinder 3 faces outward. A rotary motor base 4 is connected to the output end of the push-pull cylinder 3. The main purpose of the rotary motor base 4 is to house the rotary motor 5. Therefore, a rotary motor 5 is provided on the rotary motor base 4. The power end of the rotary motor 5 faces downward and is connected to a gripping rod 6. In this embodiment, the gripping rod 6 includes a horizontal rod 61 connected to the rotary motor 5 and a vertical rod 62 located at the end of the horizontal rod 61 away from the rotary motor 5. The vertical rod 62 is L-shaped. Thus, by bending the gripping rod 6, it can hook onto the upper mold (e.g., from the casting hole of the upper mold) through the upper mold. Figure 3 As shown), it can also achieve the pulling of the 9th column of the cutter ring mold (as shown) by rotating 180° and moving the push-pull rod. Figure 4 (As shown).

[0017] To facilitate the movement of the rotary motor base 4, a through groove 21 for the rotary motor base 4 to move is provided on the gripping plate 2. In this embodiment, to ensure stable movement, guide plates 22 are provided on both sides of the through groove 21, guide rails are provided on the guide plates 22, and sliders are provided on both sides of the rotary motor base 4, thereby achieving the stability of the rotary motor base 4's movement and the stability of the pull-out blade mold 9.

[0018] To ensure gripping stability, in this embodiment, the gripping plate 2 is equipped with three push-pull cylinders 3, and the included angle between two adjacent push-pull cylinders 3 is set at 120°. In this embodiment, an equilateral triangular prism is set at the center of the gripping plate 2, and the end of each push-pull cylinder 3 is set against the end face of the triangular prism.

[0019] Thus, with the above setup, the blade ring mold 9 can be gripped. Considering transportation issues, an electric hoist can be directly connected to the gripping plate 2, allowing the blade ring mold 9 to be transported via a gantry crane.

[0020] Considering that the blade ring mold 9 moves between fixed points, in this embodiment, a traveling trolley 1 is provided on top of the gripping plate 2, and frames 8 are provided on both sides of the gripping plate 2. The traveling trolley 1 travels on the frames 8. In this embodiment, the traveling trolley 1 includes a traveling plate 11 and sliders provided at the bottom of the traveling plate 11. The sliders are provided on both sides of the traveling plate 11. A traveling motor 12 is provided on top of the traveling plate 11, and the output end of the traveling motor 12 is provided with a gear that meshes with a rack. This satisfies the purpose of the traveling trolley 1 traveling on the frames 8. The gripping plate 2 is located below the traveling plate 11. Considering the different gripping heights, the gripping plate 2 is raised and lowered below the traveling plate 11. There are many ways to raise and lower, such as using a cylinder or a motor in conjunction with a lead screw.

[0021] To facilitate use and ensure the stability of the frame 8, in this embodiment, the frame 8 includes a bottom support frame 81, intermediate frames 82 disposed on both sides of the bottom support frame 81, and a traveling frame 83 disposed on top of the intermediate frames 82. In this embodiment, the bottom support frame 81 is a cuboid frame, while the intermediate traveling frame 83 consists of columns disposed on both sides of the bottom support frame 81. Thus, the gap between the two intermediate frames 82 forms a moving channel for the gripping plate 2. The traveling frame 83, in order to facilitate the movement of the traveling trolley 1, is equipped with a track in addition to a rack, which cooperates with the slider disposed below the traveling plate 11.

[0022] Considering the placement and removal of the cutter ring mold 9, in this embodiment, both ends of the frame 8 are suspended. That is, the top two ends of the frame 8 lack the support of the intermediate frame 82, forming a suspended state. In this way, interference between the bottom support frame 81 and the intermediate frame 82 is avoided when placing and removing the cutter ring mold 9.

[0023] In this embodiment, to ensure stable lifting and lowering, an adjusting cylinder 7 is provided on the gripping plate 2. The piston end of the adjusting cylinder 7 is positioned upwards and connected to the bottom of the traveling trolley 1. Simultaneously, the adjusting cylinder 7 is positioned between two adjacent push-pull cylinders 3. Thus, three adjusting cylinders 7 are provided.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A mold handling fixture for centrifugal casting of hobbing cutter rings, characterized in that, The device includes a gripping plate, on which a push-pull cylinder is mounted. The output end of the push-pull cylinder is connected to a rotary motor base, on which a rotary motor is mounted. The power end of the rotary motor faces downward and is connected to a gripping rod. The gripping rod includes a horizontal rod connected to the rotary motor and a vertical rod located at the end of the horizontal rod away from the rotary motor. The vertical rod is L-shaped. The gripping plate has a through groove for the rotary motor base to move. The fixed end of the push-pull cylinder is located near the center of the gripping plate. The gripping plate has three push-pull cylinders, and the included angle between the push-pull cylinders is 120°.

2. The mold handling fixture for centrifugal casting of hobbing cutter rings according to claim 1, characterized in that, An electric hoist is connected to the top of the gripping plate.

3. The mold handling fixture for centrifugal casting of hobbing cutter rings according to claim 1, characterized in that, The gripping plate has a traveling trolley on top and frames on both sides. The traveling trolley travels on the frames, and the gripping plate is raised and lowered below the traveling trolley.

4. The mold handling fixture for centrifugal casting of hobbing cutter rings according to claim 3, characterized in that, The frame includes a bottom support frame, intermediate frames on both sides of the bottom support frame, and a traveling frame on top of the intermediate frames. The traveling trolley travels on the traveling frame, and the gap between the two intermediate frames forms a moving channel for the gripping plate.

5. The mold handling fixture for centrifugal casting of hobbing cutter rings according to claim 4, characterized in that, The walking frame is suspended on both sides.

Images