A propeller punching device

Abstract

The utility model discloses a propeller punching device relates to propeller processing technical field, including beating positioning eye subassembly still includes: elastic component, it sets up on beating positioning eye subassembly, and can make beating positioning eye subassembly's positioning needle is far from propeller's rotating hub top surface, inner support subassembly, with the inner hole detachable connection of rotating hub, and its top and beating positioning eye subassembly swing joint, the receiving subassembly is set up in the circumferential side of inner support subassembly is used for receiving rotating hub. The utility model aims at overcoming the defect of the prior art propeller punching positioning device "positioning needle is easy to scratch rotating hub, and the process of fixing needs manual lifting".

Description

Technical Field

[0001] This utility model relates to the field of propeller processing technology, and in particular to a device for drilling holes in propellers. Background Technology

[0002] A propeller is a device that converts the rotational motion of an engine's output shaft into propulsion by rotating blades in air or water. A propeller typically consists of a hub and blades distributed around the hub.

[0003] Patent CN205464438U discloses a drilling and positioning device for propellers: the propeller is fixed by clamping the inner hole of the hub with a three-jaw chuck, the angle is adjusted by turning a rotatable lever, the sliding slider is adapted to different radii, and finally the positioning eye is pressed out by the positioning pin.

[0004] While the aforementioned device solves the problem of tedious manual marking and positioning, it still presents inconveniences in actual operation: First, when rotating the lever, the positioning pin needs to be manually lifted to maintain a certain distance from the hub, which is cumbersome, inconvenient, and easily forgotten. If the operator forgets to lift the positioning pin, it will directly contact the hub, scratching it as it rotates with the lever. Second, the three-jaw chuck achieves its fixation to the hub's inner hole through "rotating the rotating hole to drive the jaws to expand outwards." However, the rotating hole (the adjusting component of the three-jaw chuck) is located on the side of the chuck, requiring a wrench to be inserted and rotated during operation. Since the three-jaw chuck itself lacks any limiting support structure, during the rotation of the rotating hole, to prevent the chuck from falling and to keep the rotating hole outside the hub, the operator must continuously lift the three-jaw chuck, resulting in inconvenience and high labor intensity.

[0005] Therefore, it is necessary to develop a propeller drilling device to address the aforementioned shortcomings. Utility Model Content

[0006] The purpose of this utility model is to provide a device for drilling holes in propellers, which aims to overcome the shortcomings of existing propeller drilling and positioning devices, such as "the positioning pin easily scratches the hub and the fixing process requires manual lifting".

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model discloses a device for drilling holes in a propeller, including a hole-drilling assembly, and further comprising: An elastic component is provided on the eye-making assembly and is capable of moving the eye-making assembly's positioning pin away from the top surface of the propeller hub. An inner support assembly is detachably connected to the inner hole of the hub, and its top end is movably connected to the eye-drilling assembly. A receiving component, which is disposed on the periphery of the inner support component, is used to receive the hub.

[0008] Optionally, a limiting component is fixed at the top of the positioning pin, the bottom end of the elastic component abuts against the top surface of the slider of the positioning eye assembly, and the top end of the elastic component abuts against the bottom surface of the limiting component.

[0009] Optionally, the inner support assembly includes support blocks, a conical component, a drive mechanism, a guide mechanism, and a load-bearing mechanism. The bottom end of the conical component is a small end, and the top end is a large end. At least three support blocks are evenly distributed around the periphery of the conical component, and the support blocks are slidably connected to the sidewall of the conical component. The bottom end of the support block is slidably connected to the guide mechanism. The guide mechanism is fixedly connected to the load-bearing mechanism. The drive mechanism is disposed between the conical component, the guide mechanism, and the load-bearing mechanism, and is capable of driving the conical component to rise and fall.

[0010] Optionally, the guiding mechanism includes a fixed block, a guide block is fixed at the bottom end of the support block, and the guide block is slidably connected to the top surface of the fixed block; the fixed block is provided with a clearance hole for avoiding the conical component.

[0011] Optionally, the driving mechanism includes a circular block, a rotating shaft, a screw, and a retaining connector fixedly connected in sequence from bottom to top. The screw passes through the conical component and is threadedly connected to the conical component. The bottom end of the fixed block has a receiving hole that matches the circular block, and the receiving hole is rotatably engaged with the circular block. A through hole is provided between the receiving hole and the clearance hole, and the through hole is rotatably engaged with the rotating shaft.

[0012] Optionally, the supporting mechanism includes a base, which is fixedly connected to the fixing block, and the top surface of the base is rotatably in contact with the bottom surface of the circular block.

[0013] Optionally, the receiving component includes a receiving rod, which is fixedly connected to the outer wall of the support block, and the receiving rod and the support block are arranged in a one-to-one correspondence.

[0014] Optionally, the outer wall of the support block has an arc-shaped structure and is bonded or bolted with a rubber pad.

[0015] Optionally, a protruding ring is fixed at the top of the cone component, and the protruding ring is rotatably connected to the lever of the eye-locating assembly.

[0016] Optionally, the top surface of the cone component is provided with a plurality of pin holes evenly distributed around its circumference, and the pin holes are inserted into the pins of the positioning eye assembly.

[0017] Compared with the prior art, the beneficial technical effects of this utility model are as follows: In the non-drilling state, the elastic force of the elastic component (compression spring) pushes the limiting component upward, causing the positioning pin to rise synchronously, so that the pin tip is away from the top surface of the hub, without the need for manual lifting; when drilling, the operator presses down on the limiting component or the top of the positioning pin, the elastic component contracts, the pin tip contacts the hub and presses out the positioning hole; after releasing the press, the elastic component automatically resets, the positioning pin rises back, thus avoiding scratching the hub when rotating the lever.

[0018] During fixing and disassembly, the hub rests on the support rod, eliminating the need for manual lifting, making it convenient to use and reducing labor intensity. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention during operation; Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure; Figure 3 This is a schematic diagram of the main structure of this utility model; Figure 4 This is a top view of the support block.

[0021] Explanation of reference numerals in the attached drawings: 100, elastic component; 200, positioning pin; 210, limiting component; 300, propeller; 310, hub; 400, slider; 500, support block; 501, slide groove; 502, guide block; 510, rubber pad; 600, conical component; 601, dovetail protrusion; 602, pin hole; 700, fixing block; 701, clearance hole; 702, dovetail slide; 800, round block; 900, rotating shaft; 1000, screw; 1100, snap connector; 1200, base; 1300, receiving rod; 1400, lever; 1401, sleeve; 1500, pin. Detailed Implementation

[0022] The core of this utility model is to provide a device for drilling holes in propellers, which aims to overcome the shortcomings of existing propeller drilling and positioning devices, such as "the positioning pin easily scratches the hub and the fixing process requires manual lifting".

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "setting", "installing", "connecting", "joining", "fixing", "sleeving", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In a specific embodiment of this utility model, a positioning eye assembly is included. The positioning eye assembly belongs to the prior art. For details, please refer to the relevant structure disclosed in the patent with publication number CN205464438U. Here is a brief introduction: it includes a positioning pin 200, a slider 400, a lever 1400, a pin 1500, and a fastening screw. The slider 400 is slidably sleeved on the lever 1400. The slider 400 is provided with a fastening screw for abutting against the lever 1400. The positioning pin 200 for drilling a hole in the hub 310 is slidably passed through the slider 400. One end of the pin 1500 passes through the lever 1400.

[0027] This application also includes: The elastic member 100 is disposed on the positioning eye assembly and is capable of moving the positioning pin 200 of the positioning eye assembly away from the top surface of the hub 310 of the propeller 300. The inner support assembly is detachably connected to the inner bore of the hub 310, and its top end is movably connected to the eye-drilling assembly. A receiving component, which is located on the periphery of the inner support component, is used to receive the hub 310.

[0028] In a specific embodiment of this utility model, a limiting component 210 is fixed to the top of the positioning pin 200. The limiting component 210 can be a ring fixedly connected to the positioning pin 200. The bottom end of the elastic component 100 abuts against the top surface of the slider 400 of the positioning eye assembly, and the top end of the elastic component 100 abuts against the bottom surface of the limiting component 210. The elastic component 100 can be a compression spring and is sleeved on the positioning pin 200. In the non-drilling state, the elastic force of the elastic component 100 pushes the limiting component 210 to move upward, causing the positioning pin 200 to rise synchronously, so that the pin tip is away from the top surface of the rotating hub 310, without the need for manual lifting. When drilling, the operator presses down on the limiting component 210 or the top of the positioning pin 200, the elastic component 100 contracts, the pin tip of the positioning pin 200 contacts the rotating hub 310 and presses out the positioning eye; after releasing the press, the elastic component 100 automatically resets, and the positioning pin 200 rises back, thereby avoiding scratching the rotating hub 310 when rotating the lever 1400.

[0029] In a specific embodiment of this utility model, the inner support assembly includes a support block 500, a conical component 600, a driving mechanism, a guiding mechanism, and a bearing mechanism. The bottom end of the conical component 600 is a small end, and the top end is a large end. Specifically, the conical component 600 can be a frustum of a cone or a multi-faceted frustum of a pyramid. At least three support blocks 500 are evenly distributed around the periphery of the conical component 600. The support blocks 500 are slidably connected to the sidewall of the conical component 600. Specifically, a dovetail-shaped protrusion 601 is welded or bolted to the sidewall of the conical component 600. The T-shaped protrusion and the support block 500 have a sliding groove 501. The sliding groove 501 matches and slides with the dovetail protrusion 601 or the T-shaped protrusion. When the conical component 600 is raised or lowered, the dovetail protrusion 601 slides along the sliding groove 501, driving the support block 500 to expand or contract radially along the hub 310. The bottom end of the support block 500 is slidably connected to the guide mechanism. The guide mechanism is fixedly connected to the bearing mechanism. The drive mechanism is located between the conical component 600, the guide mechanism, and the bearing mechanism, and can drive the conical component 600 to rise or fall.

[0030] In a specific embodiment of this utility model, the guiding mechanism includes a fixed block 700, and a guide block 502 is fixed to the bottom end of the support block 500 by bolts. The guide block 502 is slidably connected to the top surface of the fixed block 700. Specifically, the top surface of the fixed block 700 is provided with a dovetail-shaped slide 702 or a T-shaped slide, and the bottom end of the guide block 502 matches and slides with the dovetail-shaped slide 702 or the T-shaped slide. The fixed block 700 is provided with a clearance hole 701 for avoiding the cone component 600.

[0031] In a specific embodiment of this utility model, the driving mechanism includes a circular block 800, a rotating shaft 900, a screw 1000, and a retaining connector 1100, which are fixedly connected from bottom to top. The screw 1000 passes through the conical component 600 and is threadedly connected to the conical component 600. The bottom end of the fixing block 700 has a receiving hole that matches the circular block 800, and the receiving hole is rotatably engaged with the circular block 800. A through hole is provided between the receiving hole and the clearance hole 701, and the through hole is rotatably engaged with the rotating shaft 900 through a graphite copper sleeve. The retaining connector 1100 is used to engage with a wrench, thereby driving the screw 1000 to rotate. Use a wrench to clamp the connector 1100 and rotate it. If you rotate it counterclockwise (the specific direction depends on the thread direction of the screw 1000), the screw 1000 will drive the cone component 600 to descend. The dovetail protrusion 601 will drive the support block 500 to expand along the dovetail slide 702 until the rubber pad 510 is tightly fitted with the inner hole of the hub 310, thus achieving fixation. If you rotate it clockwise, the cone component 600 will rise and the support block 500 will retract, so that the propeller 300 can be removed.

[0032] In a specific embodiment of this utility model, the supporting mechanism includes a base 1200, which is fixedly connected to the fixing block 700 by bolts, and the top surface of the base 1200 is rotatably in contact with the bottom surface of the circular block 800.

[0033] In a specific embodiment of this utility model, the receiving component includes a receiving rod 1300, which is fixedly connected to the outer wall of the support block 500, and the receiving rod 1300 and the support block 500 are arranged in a one-to-one correspondence.

[0034] In one specific embodiment of this utility model, the outer wall of the support block 500 has an arc-shaped structure and is bonded or bolted with a rubber pad 510. The rubber pad 510 increases friction to prevent slippage and also prevents the support block 500 from scratching the inner hole of the hub 310.

[0035] In a specific embodiment of this utility model, a convex ring is fixed at the top of the cone component 600. The convex ring is rotatably connected to the lever 1400 of the positioning eye assembly. Specifically, a bearing is sleeved on the convex ring, and a sleeve 1401 is fixed at one end of the lever 1400. The sleeve 1401 is interference-fitted with the outer ring of the bearing.

[0036] In a specific embodiment of this utility model, a plurality of pin holes 602 are evenly distributed around the top surface of the cone component 600, and the pin holes 602 are inserted into the pins 1500 of the positioning eye assembly.

[0037] In use, the hub 310 is fitted onto the outside of the support block 500, with the bottom surface of the hub 310 resting on the support rod 1300. A wrench is used to clamp the connector 1100 and rotate it counterclockwise. The screw 1000 causes the cone component 600 to descend, and the dovetail protrusion 601 slides along the groove 501, driving the support block 500 to expand along the dovetail slide 702 until the rubber pad 510 is tightly fitted into the inner hole of the hub 310, thus achieving fixation. After drilling the positioning hole, the screw 1000 is rotated clockwise, causing the cone component 600 to rise, the support block 500 to retract along the dovetail slide 702, and the rubber pad 510 to move away from the inner hole of the hub 310, allowing the propeller 300 to be removed.

[0038] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably, and the embodiments can be combined with each other. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.

[0039] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A device for drilling holes in a propeller, comprising a positioning eye assembly, characterized in that, Also includes: An elastic member (100) is provided on the eye-making assembly and is capable of moving the eye-making assembly's positioning pin (200) away from the top surface of the propeller's (300) hub (310); An inner support assembly is detachably connected to the inner hole of the hub (310), and its top end is movably connected to the eye-drilling assembly. A receiving component, which is disposed on the periphery of the inner support component, is used to receive the hub (310).

2. The propeller drilling device according to claim 1, characterized in that: The positioning pin (200) has a limiting component (210) fixed at its top end, the bottom end of the elastic component (100) abuts against the top surface of the slider (400) of the positioning eye assembly, and the top end of the elastic component (100) abuts against the bottom surface of the limiting component (210).

3. The propeller drilling device according to claim 1, characterized in that: The inner support assembly includes a support block (500), a conical component (600), a drive mechanism, a guide mechanism, and a load-bearing mechanism. The bottom end of the conical component (600) is a small end, and the top end is a large end. At least three support blocks (500) are evenly distributed around the periphery of the conical component (600). The support blocks (500) are slidably connected to the side wall of the conical component (600). The bottom end of the support block (500) is slidably connected to the guide mechanism. The guide mechanism is fixedly connected to the load-bearing mechanism. The drive mechanism is disposed between the conical component (600), the guide mechanism, and the load-bearing mechanism, and is capable of driving the conical component (600) to rise and fall.

4. The propeller drilling device according to claim 3, characterized in that: The guiding mechanism includes a fixed block (700), and a guide block (502) is fixed at the bottom of the support block (500). The guide block (502) is slidably connected to the top surface of the fixed block (700). The fixed block (700) is provided with a clearance hole (701) for avoiding the conical component (600).

5. The propeller drilling device according to claim 4, characterized in that: The driving mechanism includes a circular block (800), a rotating shaft (900), a screw (1000), and a snap-fit ​​connector (1100) that are fixedly connected from bottom to top. The screw (1000) passes through the conical component (600) and is threadedly connected to the conical component (600). The bottom end of the fixing block (700) is provided with a receiving hole that matches the circular block (800), and the receiving hole is rotatably engaged with the circular block (800). A through hole is provided between the receiving hole and the clearance hole (701), and the through hole is rotatably engaged with the rotating shaft (900).

6. The propeller drilling device according to claim 5, characterized in that: The supporting mechanism includes a base (1200), which is fixedly connected to the fixing block (700), and the top surface of the base (1200) is rotatably in contact with the bottom surface of the circular block (800).

7. The propeller drilling device according to claim 3, characterized in that: The receiving component includes a receiving rod (1300), which is fixedly connected to the outer wall of the support block (500), and the receiving rod (1300) and the support block (500) are arranged in a one-to-one correspondence.

8. The propeller drilling device according to claim 3, characterized in that: The outer wall of the support block (500) is an arc-shaped structure and is bonded or bolted with a rubber pad (510).

9. The propeller drilling device according to claim 3, characterized in that: The cone component (600) has a protruding ring fixed at its top end, and the protruding ring is rotatably connected to the lever (1400) of the eye-fixing assembly.

10. The propeller drilling device according to claim 3 or 9, characterized in that: The cone component (600) has a plurality of pin holes (602) evenly distributed around its top surface, and the pin holes (602) are inserted into the pins (1500) of the eye-drilling assembly.

Images