Device for converting centrifugal force into axial thrust

Abstract

The utility model provides a device for converting centrifugal force into axial thrust, which comprises a rotating disk, and the rotating disk is provided with a plurality of clamping grooves and mounting holes which are arranged in different directions; a centrifugal flail block is mounted in each clamping groove and is connected with the two movable connecting rods through bolts; the two movable connecting rods abut against thrust blocks arranged in the mounting holes. A locking pressure plate is mounted on the rotating disc and is used for limiting the axial movement of the centrifugal flail block and providing a radial movement space for the bolt; in the rotating process of the thrust device, the centrifugal flail block moves in the radial direction under the action of centrifugal force, the movable connecting rod is driven to push the thrust block in the axial direction, and therefore axial thrust is generated. The device is compact in structure, small in occupied space and suitable for the assembly environment with the limited space. The device utilizes centrifugal force in the rotating process, radial motion is converted into axial thrust through structural design, external hydraulic power systems, electric power systems and other power systems are not needed, and the whole system is simplified.

Description

Technical Field

[0001] This utility model relates to the technical field of axial thrust devices, and more specifically to a centrifugal force conversion axial thrust device. Background Technology

[0002] Currently, axial thrust generation is widely used in various mechanical devices, such as automatic clamping devices, clutches, friction drives, and rotary seals, all of which require axial thrust. Traditional axial thrust devices mainly include hydraulic or pneumatic actuation mechanisms and electric screw propulsion structures. These devices are typically complex in structure and large in size, requiring additional control systems and drive sources. They are not only costly and cumbersome to maintain, but also difficult to apply in space-constrained situations, especially when synchronous rotation with rotating equipment is required. Furthermore, some mechanical thrust devices based on eccentric wheels or cam mechanisms also suffer from slow response speed, non-adjustable thrust, and poor structural stability, failing to meet the demands of high-speed, high-frequency, and synchronous rotational applications. Therefore, current technology still lacks a device that is simple in structure, has a fast response, is suitable for rotating environments, and can automatically generate stable axial thrust. Utility Model Content

[0003] In view of this, the present invention provides a centrifugal force conversion axial thrust device.

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

[0005] A centrifugal force to axial thrust device includes a rotating disk with multiple slots and mounting holes in different directions. A centrifugal throwing block is installed in each slot and connected to two movable connecting rods via pins. The two movable connecting rods abut against thrust blocks installed in the mounting holes. A locking plate is installed on the rotating disk to restrict the axial movement of the centrifugal throwing block and provide radial movement space for the pins. During rotation, the centrifugal throwing block moves radially under centrifugal force, driving the movable connecting rods to axially push the thrust blocks, thereby generating axial thrust.

[0006] In a preferred embodiment, a centrifugal swing block is installed in the slot, and the centrifugal swing block has two grooves facing the movable connecting rods; the bottom ends of the two movable connecting rods are respectively embedded in the corresponding grooves of the centrifugal swing block, and the centrifugal swing block is hinged to the two movable connecting rods to form an integral unit by inserting pins from both sides of the centrifugal swing block.

[0007] In the preferred embodiment, the mounting openings are located above, below, to the left, and to the right of the rotating disk, with two mounting openings on each side. Each mounting opening contains a thrust block that can move axially, and the thrust block has a limiting protrusion to prevent it from coming out. The top end of the movable connecting rod abuts against the corresponding thrust block.

[0008] In a preferred embodiment, the locking pressure plate is provided with mounting holes. The locking pressure plate is mounted on the rotating disk by screws and clips, pressing down the portion of the pin connecting the centrifugal throwing block that protrudes from both sides of the centrifugal throwing block to restrict the axial movement of the centrifugal throwing block. The protruding portion of the pin is located in the cavity between the rotating disk and the locking pressure plate and can move freely in the radial direction.

[0009] In a preferred embodiment, the centrifugal sling block is provided with a spring groove, one end of which is embedded in the spring groove and the other end is connected to the rotating disk, which is used to reset the sling block after the centrifugal force disappears and to provide buffering during its movement.

[0010] In a preferred embodiment, the working surface of the thrust block is provided with an arc-shaped or planar structure that matches the external contact element, so as to uniformly transmit axial thrust.

[0011] In a preferred embodiment, the centrifugal throwing block is located on the inner side of the rotating disk when it is not rotating, and the thrust block is pushed forward synchronously through the movable connecting rod during rotation.

[0012] As can be seen from the above technical solution, compared with the prior art, the present invention has the following beneficial technical effects:

[0013] This device features a compact structure and small footprint, making it suitable for space-constrained assembly environments. Utilizing centrifugal force during rotation, the device converts radial motion into axial thrust through structural design, eliminating the need for external hydraulic or electric power systems and simplifying the overall system. The centrifugal force automatically increases with rotational speed, and the thrust output is proportional to the rotational speed, making it suitable for scenarios with dynamically changing loads and offering sensitive response. Installation is simple, applicable to various rotating equipment, with a central through-hole for direct mounting on various rotating shafts; its modular structure provides strong adaptability. A spring-reset system ensures that the throwing block and thrust block automatically return to their original positions when the device stops rotating or the centrifugal force decreases, guaranteeing reliable reusability. The force transmission path is clear, ensuring smooth and reliable operation. The hinged linkage design ensures a simple and clear path for force transmission from the throwing block through the linkage to the thrust block, contributing to stable system operation. The simple component structure facilitates mass production and subsequent maintenance, making it highly valuable for engineering applications. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the exploded structure of this utility model. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the exploded structure of this utility model. Figure 2 .

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0019] Reference numerals: 1. Rotary disc; 12. Slot; 13. Mounting opening; 2. Centrifugal throwing block; 21. Spring groove; 3. Locking pressure plate; 31. Mounting hole; 4. Movable connecting rod; 5. Thrust block; 51. Thrust block spring; 6. Spring; 7. Pin. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0021] In the description of this application, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] A centrifugal force to axial thrust conversion device is disclosed. Its compact structure effectively converts radial force into stable axial thrust using centrifugal force generated by rotation. It is suitable for space-constrained applications where the device needs to rotate with the equipment and simultaneously output axial thrust, such as various rotating mechanisms. It is particularly suitable for automatic clamping mechanisms of CNC machine tools, rotary mold pressing systems, clutch pre-tightening devices, automatic clamping devices, flywheel pressure regulating mechanisms, and other applications requiring automatic axial thrust. This device primarily converts centrifugal force into axial thrust output during rotational motion. This thrust can be used to push external components, such as clamping devices, friction plates, or sealing elements, to achieve automatic clamping, release, or adjustment. In use, the device is mounted on a rotating shaft through the central mounting hole 31. As the shaft rotates, the device rotates accordingly, generating centrifugal force and thus automatically producing axial thrust, without the need for an external power supply or control system. This structure adapts to the magnitude of the centrifugal force, achieving dynamic force adjustment, and is suitable for high-speed rotating systems.

[0024] Furthermore, as shown in the appendix Figure 1-4As shown, the device mainly includes the following components: a rotating disk 1, with a circular edge and eight corners removed to form a cross-shaped structure. The rotating disk 1 has a slot 12 and two mounting holes 13 in each of the four directions (up, down, left, and right). A centrifugal throwing block 2, installed in the slot 12, is block-shaped and has two grooves on one side for inserting movable connecting rods 4, used for connection with the movable connecting rods 4. Pins 7 are inserted from both sides of the centrifugal throwing block 2 to fix and hinge the two movable connecting rods 4 to the centrifugal throwing block 2, forming a single unit. One end of the movable connecting rod 4 is hinged to the centrifugal throwing block 2, and the other end abuts against the thrust block 5 in the mounting hole 13. The thrust block 5, installed in the mounting hole 13, can move back and forth in the axial direction; its outer end is an output surface that cooperates with external contact components; the thrust block 5 also has a limiting protrusion to prevent it from dislodging from the hole. A locking pressure plate 3 is installed on the outside of the rotating disk 1 and fixed by screws and clips. The locking pressure plate 3 has a mounting hole 31 in the middle for mounting the device on the rotating shaft of the rotating equipment. The locking pressure plate 3 presses down on the centrifugal block 2, restricting its axial movement. A cavity is provided between the locking pressure plate 3 and the centrifugal block 2 for radial movement of the protruding part of the pin 7. A spring 6, one end fixed in the spring groove 21 of the centrifugal block 2 and the other end connected to the rotating disk 1, is used to reset the centrifugal block 2 after the centrifugal force disappears and to provide cushioning during its movement.

[0025] Furthermore, the rotating disk 1 provides an overall support structure, transmitting rotational power; the slot 12 limits and accommodates the centrifugal throwing block 2; the mounting opening 13 accommodates the thrust block and provides an axial movement channel; the centrifugal throwing block 2 utilizes centrifugal force to achieve radial displacement; the pin 7 hinges the centrifugal throwing block 2 to the movable connecting rod 4; the movable connecting rod 4 converts the radial force of the throwing block into the axial thrust of the thrust block 5; the thrust block 5 outputs axial thrust to drive the external device; the locking pressure plate 3 restricts the axial movement of the throwing block, maintaining the structural integrity; the mounting hole 31 enables connection with the shaft of the rotating equipment; the spring 6 provides the restoring force and buffers the movement process; the spring groove 21 is the structural part for installing the spring. The above components can be manufactured using different materials according to actual needs. For example, the rotating disk 1 and the centrifugal throwing block 2 can be made of aluminum alloy, 45# steel, or reinforced plastic; the spring 6 can be made of spring steel; and the pin 7 can be made of high-strength carbon steel or stainless steel to meet strength and wear resistance requirements. The diameter of the rotating disk 1 can be designed from 80mm to 300mm, and the stroke range of the thrust block 5 is 2mm to 10mm, adapting to different specifications of equipment. The installation process is as follows: First, insert the thrust block 5 into the opening 13 of the rotating disk 1 and lock it into the limit position; then, connect the movable connecting rod 4 and the centrifugal throwing block 2 with the pin 7; after inserting the spring 6 into the spring groove 21, place the centrifugal throwing block 2 assembly into the slot 12; finally, install the locking pressure plate 3 and tighten the screws to complete the assembly. In actual operation, when the main shaft of the equipment drives the device to rotate, the centrifugal throwing block 2 moves radially under the action of centrifugal force, pushing the movable connecting rod 4 to push the thrust block 5, thereby converting the rotational force into a stable axial thrust. The movable connecting rod 4 forms a certain angle with the front side wall of the thrust block 5, so that when the centrifugal throwing block 2 moves upward, the movable connecting rod 4 converts the upward force into an axial force, pushing the thrust block 5 out. The entire device does not require an external power supply or hydraulic system, relying on the structure itself to complete the force conversion and reset. It has a fast response, compact structure, and is easy to install, and has good engineering application prospects. In addition, in other embodiments, the thrust block 5 can be an integral or split structure; the connection between the movable connecting rod 4 and the centrifugal throwing block 2 can be replaced by a pin shaft, ball joint or sliding block structure, etc.; the shape of the rotating disk 1 can also be adjusted according to the equipment space, without affecting the realization of the core technical solution of the present invention.

[0026] Furthermore, the specific working principle of this utility model is as follows: When the rotating disk 1 rotates with the main shaft of the equipment, the centrifugal throwing block 2 moves radially outward from a position near the center under the action of centrifugal force. Since the centrifugal throwing block 2 is hinged to two movable connecting rods 4 through the pin 7, the radial displacement of the throwing block 2 will drive the connecting rods 4 to move forward in the axial direction, thereby pushing the thrust block 5 to move forward axially. The thrust block 5 then extends from the front of the rotating disk 1, that is, protrudes from the wall of the rotating disk 1, and outputs a stable axial thrust outward. When the rotation stops or the speed decreases, the centrifugal force weakens, the spring 6 automatically pulls the centrifugal throwing block 2 back to the initial position, and at the same time the connecting rod 4 resets, and the thrust block 5 also retracts accordingly, realizing automatic reset and completing a complete cycle of thrust generation and release. Figure 1 As shown, the mounting opening 13 is provided with a protrusion groove that matches the limiting protrusion of the thrust block 5 to accommodate the limiting protrusion of the thrust block 5. The rear side of the protrusion groove is the side wall of the rotating disk 1 to prevent the thrust block 5 from falling out of the mounting opening 13. The stroke of the thrust block 5 can be changed by changing the thickness of the limiting protrusion or the depth of the protrusion groove. A thrust spring 51 is provided in the protrusion groove. The thrust spring 51 is used to move the thrust block 5 backward to achieve reset when the device stops rotating after the thrust block 5 is pushed out. In other embodiments, the thrust spring 51 may not be provided, and the top of the movable connecting rod 4 may be rotatably connected to the thrust block 5. The thrust block 5 is reset by pulling the movable connecting rod 4 when it is reset.

[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A centrifugal force to axial thrust conversion device, characterized in that: include: A rotating disk (1) is provided with multiple slots (12) and mounting holes (13) arranged in different directions; a centrifugal throwing block (2) is installed in each slot (12), and the centrifugal throwing block (2) is connected to two movable connecting rods (4) through a pin (7); the two movable connecting rods (4) abut against the thrust block (5) provided in the mounting hole (13); a locking pressure plate (3) is installed on the rotating disk (1) to restrict the axial movement of the centrifugal throwing block (2) and to provide radial movement space for the pin (7); during the rotation of the thrust device, the centrifugal throwing block (2) moves radially under the action of centrifugal force, driving the movable connecting rod (4) to axially push the thrust block (5), thereby generating axial thrust.

2. The centrifugal force conversion axial thrust device according to claim 1, characterized in that: A centrifugal swing block (2) is installed in the slot. The centrifugal swing block (2) has two grooves facing the movable connecting rods (4). The bottom ends of the two movable connecting rods (4) are respectively embedded in the corresponding grooves of the centrifugal swing block (2). The centrifugal swing block (2) is inserted from both sides of the centrifugal swing block (2) by means of pins (7), so that the centrifugal swing block (2) and the two movable connecting rods (4) are hinged to form an integral unit.

3. The centrifugal force to axial thrust conversion device according to claim 1, characterized in that: The mounting openings (13) are located above, below, to the left and to the right of the rotating disk (1). There are two mounting openings (13) on each side. A thrust block (5) that can move axially is installed in each mounting opening (13). The thrust block (5) is provided with a limiting protrusion to prevent it from falling out. The top end of the movable connecting rod (4) abuts against the corresponding thrust block (5).

4. The centrifugal force conversion axial thrust device according to claim 1, characterized in that: The locking plate (3) is provided with mounting holes (31). The locking plate (3) is installed on the rotating plate (1) by screws and buckles, pressing down the part of the pin (7) connected to the centrifugal throwing block (2) that protrudes from both sides of the centrifugal throwing block (2) to restrict the axial movement of the centrifugal throwing block (2). The protruding part of the pin (7) is located in the cavity between the rotating disk (1) and the locking pressure plate (3), and can move freely in the radial direction.

5. The centrifugal force conversion axial thrust device according to claim 1, characterized in that: The centrifugal sling block (2) is provided with a spring groove (21). One end of the spring (6) is embedded in the spring groove (21), and the other end is connected to the rotating disk (1). It is used to reset the sling block (2) after the centrifugal force disappears and to provide buffer during its movement.

6. The centrifugal force to axial thrust conversion device according to claim 1, characterized in that: The working surface of the thrust block (5) is provided with an arc-shaped or planar structure that matches the external contact parts, so as to uniformly transmit axial thrust.

7. The centrifugal force to axial thrust conversion device according to claim 1, characterized in that: The centrifugal throwing block (2) is located on the inner side of the rotating disk (1) when it is not rotating. During the rotation, the thrust block (5) is pushed forward synchronously through the movable connecting rod (4).

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