Device for outputting constant force and changing direction of force
By designing a device including a force assembly and a fixed pulley assembly, using the lever principle to amplify the force and change the torque direction, the problems of torque deviation and difficulty in constant control in the prior art are solved, and the effect of constant output force and flexibly changing the torque direction is achieved.
Patent Information
- Application Number
- CN202421533360.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-01
AI Technical Summary
When the existing devices output force, the torque is prone to deviation and it is difficult to control the direction of the torque continuously.
A device including a frame body, a force assembly and a fixed pulley assembly is designed. The force assembly amplifies the force through the lever principle of large rollers and small rollers, while the fixed pulley assembly changes the direction of the torque to ensure the constant force arm.
The function of outputting constant force and changing the direction of the torque is realized, ensuring that the force magnitude remains unchanged throughout the process, and the function of impact through the free fall of heavy objects is integrated.
Smart Images
Figure CN222926497U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to, in particular to a device for outputting a constant force and changing the direction of the force. Background Art
[0002] In fields such as testing, assembly, and manufacturing, it is necessary to apply specific forces to articles or components to achieve specific functions or effects. For example:
[0003] In the testing field, different forces need to be applied to simulate various scenarios in actual use to detect the strength, durability, and reliability of products.
[0004] In the assembly field, appropriate forces need to be applied to connect or separate components to ensure the correctness and reliability of the assembly.
[0005] In the manufacturing field, different forces need to be applied to shape, cut, or process materials to manufacture products that meet the requirements.
[0006] Due to changes in products and testing directions, different torques need to be output. However, when the existing devices apply force each time, there are deviations in the torque, and the torque cannot be controlled constantly. Summary of the Utility Model
[0007] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a device for outputting a constant force and changing the direction of the force.
[0008] The purpose of the utility model is achieved by the following technical solutions:
[0009] A device for outputting a constant force and changing the direction of the force, comprising:
[0010] A frame body, which is divided into a top layer, a middle layer, and a bottom layer. A force application component is arranged on the middle layer. An input end and an output end are formed on the force application component. A first rope is fixed to the output end, and a second rope and a heavy object are fixed to the input end. The radius of the input end is greater than the radius of the output end; the bottom layer provides a placement position for the heavy object; a fixed pulley component is arranged on the top layer, and the upper end of the first rope extends in the horizontal direction after passing through the fixed pulley component, so as to change the torque direction.
[0011] In one or more embodiments of the utility model, the force application component includes a first fixed seat and a second fixed seat fixed inside the frame body. A rotating shaft is fixed between the first fixed seat and the second fixed seat through a bearing. A force application roller is fixed on the rotating shaft, and both the input end and the output end are arranged on the force application roller.
[0012] In one or more embodiments of the present utility model, the force - adding roller is integrally formed by a large roller and a small roller. The axes of the large roller and the small roller are aligned. The radius of the large roller is greater than that of the small roller. The large roller forms an input end for fixing to the second rope, and the small roller forms an output end for fixing to the first rope.
[0013] In one or more embodiments of the present utility model, the fixed - pulley assembly is fixed to the lifting mechanism. The lifting mechanism includes two gear boxes fixed to the top layer. A gear set is arranged inside the gear box. A transverse lead screw for driving the gear set is rotatably arranged between the two gear boxes. The output end of the gear set is equipped with a vertically arranged lifting lead screw. The fixed - pulley assembly is fixed to the upper end of the lifting lead screw. One end of the transverse lead screw is fixed with a hand wheel.
[0014] In one or more embodiments of the present utility model, the fixed - pulley assembly includes a fixed seat fixed to the lifting lead screw. A fixed shaft is fixed between the two fixed seats. Two fixed pulleys are fixed to the fixed shaft through bearings. The upper side of the first rope changes its direction through the fixed pulley.
[0015] In one or more embodiments of the present utility model, the first rope is divided into two sections, which are fixed through a turnbuckle. The outer side of one of the sections is connected and fixed to the force - adding component. The outer side of the other section forms a force - applying point after changing its direction via the fixed - pulley assembly.
[0016] In one or more embodiments of the present utility model, a fixed frame is fixed to the outer side of the frame body. Two slide rails are horizontally fixed to the outer side of the fixed frame. A slide block is slidably arranged on the slide rail. A strong - switch magnet is fixed to the outer side of the slide block. Four universal wheels with locking functions are installed at the bottom of the frame body.
[0017] Advantages of the present utility model:
[0018] A device for outputting a constant force and changing the direction of the force proposed by the present utility model, through the way of a roller lever, can output a large force by applying a small force, and change the direction of the output force through a fixed pulley. During the whole output process, the force - adding component and the direction of the force are always tangent, and the force arm is constant. Therefore, during the whole process, the magnitude of the force remains unchanged and constant, and at the same time, it integrates the function of making an impact by the free - fall of a heavy object. Brief Description of the Drawings
[0019] Figure 1 is a schematic structural diagram of the present utility model;
[0020] Figure 2 is a schematic structural diagram of the force - adding roller. Detailed Description of the Embodiment
[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.
[0022] In this embodiment, as Figures 1 to 2 shown, a device for outputting a constant force and changing the direction of the force includes a frame body 1. The frame body 1 is divided into a top layer, a middle layer, and a bottom layer. A force application assembly is provided on the middle layer. An input end and an output end are formed on the force application assembly. A first rope 2 is fixed to the output end. A second rope 3 and a heavy object 4 are fixed to the input end. The radius of the input end is greater than the radius of the output end. The bottom layer provides a placement position for the heavy object 4. A fixed pulley assembly is provided on the top layer. The upper end of the first rope 2 extends in the horizontal direction after passing through the fixed pulley assembly, so as to change the torque direction.
[0023] In this embodiment, in the way of a roller lever, by applying a small force, a very large force can be output, and the direction of the output force is changed by a fixed pulley. During the whole output process, the force application assembly and the direction of the force are always tangent, and the force arm is constant. Therefore, during the whole process, the magnitude of the force remains unchanged and constant, and at the same time, the function of making an impact by the free fall of the heavy object 4 is integrated.
[0024] A bottom plate is fixed on the bottom layer for placing the heavy object 4. The middle layer is formed by fixing cross bars. A rectangular plate is fixed on the top layer. A rectangular opening is formed in the rectangular plate. The first rope 2 passes through the rectangular opening.
[0025] In one or more embodiments of the present utility model, the force application assembly includes a first fixed seat 5 and a second fixed seat 6 fixed in the frame body 1. A rotating shaft 7 is fixed between the first fixed seat 5 and the second fixed seat 6 through a bearing. A force application roller is fixed on the rotating shaft 7. The input end and the output end are both arranged on the force application roller.
[0026] In one or more embodiments of the present utility model, the boosting roller is integrally formed by a large roller 8 and a small roller 9. The axes of the large roller 8 and the small roller 9 are aligned. The radius of the large roller 8 is greater than that of the small roller 9. The large roller 8 forms an input end for fixing to the second rope 3, and the small roller 9 forms an output end for fixing to the first rope 2.
[0027] In this embodiment, a rotating shaft is fixed to the axis center of the side surface of the large roller 8, and a limiting wheel is fixed to the outer end of the rotating shaft. The small roller 9 is formed by a groove between the large roller 8 and the limiting wheel. One end of the first rope 2 is fixed to the outer wall of the rotating shaft; a wheel groove is provided on the outer diameter of the large roller 8, and one end of the second rope 3 is fixed to the wheel groove.
[0028] The heavy object 4 provides the gravity source for the device. Under the action of the large roller 8, it is amplified into a greater required force and provides the gravity source for the free-fall mechanism.
[0029] The heavy object 4 is fixed by the second rope 3 and wound around the large wheel of the large roller 8. The large roller 8 and the small roller 9 are integrated, and a lever principle is formed between the two. The first rope 2 is fixed to the small roller 9, and a greater force is amplified and output through the lever principle. Due to its special boosting roller, the direction of the force can always be kept tangent to the roller, which means that the length of the force arm remains unchanged. Without changing the heavy object, the output force can be kept unchanged in any direction.
[0030] In one or more embodiments of the present utility model, the fixed pulley assembly is fixed to the lifting mechanism. The lifting mechanism includes two gear boxes 10 fixed to the top layer. A gear set is provided inside the gear boxes 10. A transverse lead screw 11 for driving the gear set is rotatably provided between the two gear boxes 10. The output end of the gear set is provided with a vertically arranged lifting lead screw 12. The fixed pulley assembly is fixed to the upper end of the lifting lead screw 12; a hand wheel 21 is fixed to one end of the transverse lead screw 11. The transverse lead screw 11 is driven by the hand wheel 21.
[0031] In one or more embodiments of the present utility model, the fixed pulley assembly includes a fixed seat 13 fixed to the lifting lead screw 12. A fixed shaft 14 is fixed between the two fixed seats 13. Two fixed pulleys 15 are fixed to the fixed shaft 14 through bearings. The upper side of the first rope 2 changes direction through the fixed pulley 15. The height of the fixed pulley 15 is adjusted by the lifting mechanism to adapt to the force direction requirements at different heights. At the same time, the magnitude of the force can be changed by replacing the heavy object 4 with different weights.
[0032] In this embodiment, the first rope 2 changes the direction of force through the fixed pulley 15 on the lifting mechanism. On the large and small rollers, the ropes or steel wires on both sides are always tangent to the force-applying roller regardless of the direction. On this basis, the large roller 8 is subjected to the pulling force of the heavy object 4, and the force arm on the large roller 8 is the radius of the large roller 8. At the same time, the force arm on the small roller 9 is the radius of the small roller 9. Therefore, the force output on the small roller 9 is constantly amplified under the action of the force arm.
[0033] In one or more embodiments of the present invention, the first rope 2 is divided into two sections, which are fixed by a turnbuckle 20 between the two sections. The outer side of one section is connected and fixed to the force-applying component, and the outer side of the other section forms a force application point after changing the direction via a fixed pulley assembly. The turnbuckle 20 adopts the prior art, and its specific structure will not be described in detail here.
[0034] In one or more embodiments of the present invention, a fixing frame 16 is fixed to the outer side of the frame body 1. Two slide rails 17 are horizontally fixed to the outer side of the fixing frame 16. A slide block is slidably arranged on the slide rail, and a strong switch magnet 18 is fixed to the outer side of the slide block; four universal wheels 19 with locking functions are installed at the bottom of the frame body 1.
[0035] In this embodiment, the universal wheels 19 can freely move the device and lock it in any position; through the setting of the strong switch magnet 18, the stability of magnetic attraction is ensured.
[0036] Changing the magnitude and direction of force: Place the device in position at the place where force needs to be applied, and fix the bottom universal wheels 19; connect the force application point to the measured place and connect it to the small roller 9 through the first rope 2; there is a turnbuckle 20 in the middle of the first rope 2, so that the length of the first rope 2 can be adjusted.
[0037] Tensile impact function: Connect the output point to the required point, adjust the length of the first rope 2 through the turnbuckle 20, make the heavy object 4 suspended, then move the required point by the required distance, and then release it. Driven by the free fall of the heavy object 4, the movement of the required point is driven and stops after impact.
[0038] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "set", "connected" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
Claims
1. A device for outputting a constant force and changing the direction of the force, characterized in that: include: A frame body (1), the frame body (1) is divided into a top layer, a middle layer and a bottom layer, the middle layer is provided with a force-applying assembly, an input end and an output end are formed on the force-applying assembly, a first rope (2) is fixed to the output end, a second rope (3) and a weight (4) are fixed to the input end, and the radius of the input end is greater than the radius of the output end; the bottom layer provides a placement position for the weight (4); the top layer is provided with a fixed pulley assembly, the upper end of the first rope (2) extends in a horizontal direction through the fixed pulley assembly to change the direction of the torque.
2. A device for outputting a constant force and changing the direction of the force according to claim 1, characterized in that: The force-applying assembly comprises a first fixed seat (5) and a second fixed seat (6) fixed in the frame body (1); a rotating shaft (7) is fixed between the first fixed seat (5) and the second fixed seat (6) via a bearing; a force-applying roller is fixed on the rotating shaft (7); and the input end and the output end are both arranged on the force-applying roller.
3. A device for outputting a constant force and changing the direction of the force according to claim 2, characterized in that: The force-applying roller is formed by integrally molding a large roller (8) and a small roller (9); the axes of the large roller (8) and the small roller (9) are consistent; the radius of the large roller (8) is greater than the radius of the small roller (9); the large roller (8) forms an input end fixed to the second rope (3); and the small roller (9) forms an output end fixed to the first rope (2).
4. A device for outputting a constant force and changing the direction of the force according to claim 1, characterized in that: The fixed pulley assembly is fixed on the lifting mechanism, and the lifting mechanism comprises two gear boxes (10) fixed on the top layer, a gear set is arranged in the gear box (10), a transverse screw rod (11) for driving the gear set is rotatably arranged between the two gear boxes (10), a vertically arranged lifting screw rod (12) is installed at the output end of the gear set, and the fixed pulley assembly is fixed to the upper end of the lifting screw rod (12); a hand wheel (21) is fixed at one end of the transverse screw rod (11).
5. A device for outputting a constant force and changing the direction of the force according to claim 4, characterized in that: The fixed pulley assembly comprises a fixed seat (13) fixed on the lifting screw (12), a fixed shaft (14) is fixed between the two fixed seats (13), two fixed pulleys (15) are fixed on the fixed shaft (14) via bearings, and the upper side of the first rope (2) changes direction via the fixed pulley (15).
6. A device for outputting a constant force and changing the direction of the force according to claim 1, characterized in that: The first rope (2) is divided into two sections, which are fixed by a basket bolt (20), the outer side of one section is connected and fixed to the force application component, and the outer side of the other section forms a force application point after changing direction via a fixed pulley component.
7. A device for outputting a constant force and changing the direction of the force according to claim 1, characterized in that: A fixing frame (16) is fixed on the outer side of the frame body (1), two slide rails (17) are transversely fixed on the outer side of the fixing frame (16), a slide rail is slidably arranged on the slide rail, and a strong switch magnet (18) is fixed on the outer side of the slide rail; four universal wheels (19) with a locking function are installed at the bottom of the frame body (1).