Torque balance mechanism with constant force output

Abstract

The utility model provides a moment balance mechanism with constant force output, which relates to the technical field of constant force support and comprises an accommodating shell, a pushing shaft is slidably connected in the accommodating shell, the rear end of the pushing shaft is connected with a combination block, a support column is further arranged at the bottom of the accommodating shell, a constant force spring is connected onto the support column, and the constant force spring is connected onto the support column. The contraction end of the constant-force spring is detachably connected with the combination block, and the top of the containing shell is detachably connected with a protective cover, so that the problem that certain occasions need to provide constant supporting force to balance torque and reduce load is solved, and in the large-stroke displacement, the constant-force spring is arranged in the containing shell. If a common spring or tension spring provides supporting force, the elastic force change of the common spring or tension spring can bring adverse effects on an executing mechanism.

Description

Technical Field

[0001] This utility model mainly relates to the field of constant force support technology, specifically to a torque balancing mechanism with constant force output. Background Technology

[0002] Most industrial ejector spring mechanisms on the market have varying spring forces that change with the stroke. Traditional springs generate unstable forces due to changes in their own state during operation and can only handle compression and tension. The unstable tension and compression forces of common springs can affect the accuracy and efficiency of equipment. In practical applications, some situations require a constant support force to balance torque and reduce load.

[0003] For example, when a linear motor is used vertically without an external holding device, the traditional approach is to select a linear motor with a large thrust margin or add ordinary springs (including pneumatic springs, hydraulic springs, etc.) to compensate for the additional load caused by gravity. This not only increases system cost, but also results in a large difference in the actual output force required when the load rises and falls, leading to increased thrust fluctuations, limited operating speed, reduced positioning accuracy, prolonged settling time, and loss of high-speed response performance.

[0004] Therefore, during small-range displacement, ordinary springs or tension springs can balance the torque, but during large-stroke displacement, the change in the elastic force of ordinary springs or tension springs will have an adverse effect on the actuator.

[0005] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0006] 1. The technical problem to be solved by the utility model:

[0007] This utility model provides a torque balancing mechanism with constant force output to solve the technical problems existing in the background art.

[0008] 2. Technical Solution:

[0009] To achieve the above objectives, the technical solution provided by this utility model is as follows: a torque balancing mechanism with constant force output, comprising a housing, a push shaft slidably connected inside the housing, a connecting block connected to the rear end of the push shaft, a support column at the bottom of the housing, a constant force spring connected to the support column, a retractable end of the constant force spring connected to the connecting block, and a protective cover removably connected to the top of the housing. This device can be installed at a location where torque balancing is required, providing stable support for the connected mechanism. During operation, the push shaft is pressed down to its lowest point, and then the end of the push shaft is connected to the location requiring support. Under the action of the internal constant force spring, the push shaft will continuously output a constant thrust, facilitating the movement of objects. This device ensures a continuous and constant torque output through the constant tension provided by the constant force spring, making it particularly suitable for vertical movement scenarios.

[0010] Furthermore, the lower part of the connecting block is symmetrically provided with concave grooves, which are matched and connected to a sliding track, which is located at the bottom of the receiving housing.

[0011] Furthermore, there are two support columns, symmetrically arranged inside the housing. Each support column is connected to a constant force spring, and the contraction end of the constant force spring is detachably connected to both sides of the connecting block via screws.

[0012] Furthermore, a linear bearing is provided at the intersection of the push shaft and the housing, and the push shaft is slidably connected to the middle of the linear bearing.

[0013] Furthermore, the top of the housing has a concave mounting groove, and the four corners of the concave mounting groove have threaded holes, which are used to detachably connect the protective cover via screws.

[0014] Furthermore, the two housings are placed side by side, and their tops are connected by a single protective cover, which has a connection hole for bolting to the threaded hole.

[0015] Furthermore, the housing has mounting holes.

[0016] 3. Beneficial effects:

[0017] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0018] This utility model is reasonably designed. This device provides a continuous and stable thrust through a constant force spring, ensuring a constant torque output. It is especially suitable for vertical movement scenarios, effectively balancing the load torque and reducing drive energy consumption.

[0019] The combination of block and sliding track design and the use of linear bearings ensures the accuracy of linear motion of the drive shaft, avoids offset, and improves the reliability and service life of the mechanism.

[0020] The modular design allows for adjustment of the support force by increasing or decreasing the number of housing shells, flexibly adapting to different load requirements. At the same time, the protective cover can prevent dust, enhancing the stability of the overall structure and the convenience of maintenance.

[0021] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This utility model is designed to be explosive.

[0024] Figure 3 This is a schematic diagram of another embodiment of the present invention.

[0025] Figure label:

[0026] 1. Housing housing; 11. Concave mounting groove; 12. Threaded hole; 2. Push shaft; 3. Connecting block; 31. Concave slide groove; 32. Sliding rail; 4. Support column; 5. Constant force spring; 6. Protective cover; 61. Connecting hole; 7. Linear bearing; 8. Mounting hole. Detailed Implementation

[0027] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] It should be noted that structures not described in this invention do not involve the design points and improvement directions of this invention, and can all be achieved using existing technologies known to those skilled in the art.

[0032] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0033] See attached document Figure 1-3 A torque balancing mechanism with constant force output includes a housing 1, a push shaft 2 slidably connected inside the housing 1, a connecting block 3 connected to the rear end of the push shaft 2, a support column 4 at the bottom of the housing 1, a constant force spring 5 connected to the support column 4, the retracted end of the constant force spring 5 being detachably connected to the connecting block 3, and a protective cover 6 detachably connected to the top of the housing 1. This device can be installed at the location where torque balancing is required, providing stable support for the connected mechanism. During operation, the push shaft 2 is pressed down to the bottom, and then the end of the push shaft 2 is connected to the location requiring support. Under the action of the internal constant force spring 5, the push shaft 2 will continuously output a constant thrust, facilitating the movement of objects. This device ensures a continuous and constant torque output through the constant tension provided by the constant force spring 5, making it particularly suitable for vertical movement scenarios.

[0034] The lower part of the connecting block 3 is symmetrically provided with concave grooves 31, and the concave grooves 31 are matched and connected to the sliding track 32. The sliding track 32 is located at the bottom of the receiving housing 1. The cooperation between the concave grooves 31 and the sliding track 32 can ensure that the connecting block 3 moves along a straight line.

[0035] There are two support columns 4, symmetrically arranged inside the housing 1. The support columns 4 are respectively connected to constant force springs 5. The contraction ends of the constant force springs 5 ​​are detachably connected to both sides of the connecting block 3 by screws. In this embodiment, two constant force springs 5 ​​are set to provide constant pressure to the connecting block 3 at the same time. Of course, depending on the actual use, one or more constant force springs 5 ​​can also be set. The end of the constant force spring 5 is designed with a connecting hole 61, which is fixed to both sides of the connecting block 3 by bolts, so as to provide constant tension to the connecting block 3.

[0036] A linear bearing 7 is provided at the intersection of the push shaft 2 and the housing 1. The push shaft 2 is slidably connected in the middle of the linear bearing 7. The push shaft 2 passes through the linear bearing 7 from inside the housing 1 to ensure the linear movement of the push shaft 2 and prevent misalignment.

[0037] The top of the housing 1 has a concave mounting groove 11, and the four corners of the concave mounting groove 11 have threaded holes 12. The threaded holes 12 are detachably connected to the protective cover 6 by screws. The concave mounting groove 11 facilitates the quick positioning and installation of the protective cover 6. The protective cover can limit the internal connecting block 3 and also prevent external impurities from entering the housing 1.

[0038] Two housing shells 1 are placed side by side, and their tops are connected by a single protective cover 6. The protective cover 6 has a connecting hole 61 that is bolted to the threaded hole 12. Multiple housing shells 1 can be placed side by side to provide different levels of support. In this embodiment, two housing shells 1 are arranged side by side. Of course, different numbers of housing shells 1 can be connected by the protective cover 6 according to the required support force.

[0039] The housing 1 has mounting holes 8, through which the device can be installed in the desired position.

[0040] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A constant force output torque balancing mechanism, characterized by: Including accommodating shell (1), the accommodating shell (1) inside sliding connection push axle (2), the push axle (2) rear end connection combination block (3), the accommodating shell (1) bottom is equipped with support column (4) still, the support column (4) is connected on constant force spring (5), the constant force spring (5) retraction end detachable connection combination block (3), the accommodating shell (1) top detachable connection protective cover (6).

2. A constant force output torque balancing mechanism according to claim 1, characterized in that: The combination block (3) low part is equipped with concave sliding slot (31) symmetrically, the concave sliding slot (31) matching connection sliding rail (32), the sliding rail (32) is equipped in the accommodating shell (1) bottom.

3. The constant force output torque balancing mechanism of claim 1, wherein: The support column (4) has two, symmetry is equipped in the accommodating shell (1), the support column (4) is connected constant force spring (5) respectively, the retraction end of constant force spring (5) is detachable connection combination block (3) both sides through screw.

4. The constant force output torque balancing mechanism of claim 1, wherein: The push axle (2) and the accommodating shell (1) intersection is equipped with linear bearing (7), the linear bearing (7) middle part sliding connection push axle (2).

5. A constant force output torque balancing mechanism according to claim 1, wherein: The accommodating shell (1) top is opened concave mounting groove (11), the concave mounting groove (11) four corners are opened thread hole (12), the thread hole (12) is detachable connection protective cover (6) through screw.

6. A constant force output torque balancing mechanism according to claim 5, wherein: Two accommodating shell (1) side by side place, top through a whole protective cover (6) connection, the protective cover (6) is opened connection hole (61) and the thread hole (12) bolt connection.

7. The constant force output torque balancing mechanism of claim 1, wherein: The accommodating shell (1) is opened mounting hole (8).

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