Elastic transmission link

Abstract

The utility model belongs to mechanical connecting rod technical field discloses a kind of elastic transmission connecting rod, for connecting executive system and main drive system, including first bolt, second bolt, guide rod, connecting rod and elastic piece. First bolt one end is connected with guide rod, and the other end is connected with one of executive system and main drive system. Second bolt one end is connected with connecting rod, and the other end is connected with another one of executive system and main drive system. Elastic piece one end is connected to first bolt, and the other end is connected to second bolt, and when elastic piece is in relaxation state, the end of guide rod far from first bolt and the end of connecting rod far from second bolt are attached. When main drive system and executive system need to be disconnected, main drive system can stretch and deform elastic piece, guide rod and connecting rod are separated, executive system does not act, and main drive still normally operates. The elastic transmission connecting rod provided by the utility model is simple in structure, can save space, and can withstand a wide range of loads, and can meet various operating occasions.

Description

Technical Field

[0001] This utility model relates to the field of mechanical linkage technology, and in particular to an elastic transmission linkage. Background Technology

[0002] In mechanical equipment involving transmission systems, there are often working conditions where, during the continuous normal operation of the main transmission system of a machine or equipment, it is necessary to temporarily and quickly disconnect the power connection between a specific working link or execution branch and the main transmission source, or reconnect it when needed, depending on different process or procedure requirements.

[0003] To achieve this connection and disconnection of power, the clutch device is an indispensable key component. Currently, there are various mature clutch technologies in the industry, such as mechanical clutches, electromagnetic clutches, hydraulic couplings, couplers, friction clutches, and overrunning clutches.

[0004] However, the existing clutch mechanisms generally suffer from the following technical defects:

[0005] The complex structure and large space occupation, especially the mechanical and hydraulic types, are composed of many precision parts, making assembly complicated. The overall axial and radial dimensions are large, which puts high requirements on the installation space of the equipment and is not conducive to the miniaturization and compact design of the equipment structure.

[0006] The application scope is limited: different types of clutches have their specific applicable scenarios. For example, electromagnetic clutches are susceptible to the working environment (such as dust and high temperature); hydraulic clutches have the risk of oil leakage and require high cleanliness; overrunning clutches are only suitable for one-way transmission. These limitations prevent them from serving as a universal solution to meet a wide variety of needs.

[0007] High manufacturing and maintenance costs: The sophisticated structure and special materials (such as electromagnetic components and hydraulic seals) result in high manufacturing costs. At the same time, the complex structure also means a higher failure rate and maintenance costs.

[0008] Therefore, there is an urgent need for an elastic transmission link to overcome the aforementioned problems existing in the current transmission system. Utility Model Content

[0009] The purpose of this invention is to provide an elastic transmission linkage to overcome the problems of existing clutch technology, such as complex structure, large space occupation, limited application range, and high manufacturing and maintenance costs.

[0010] To achieve this objective, the present invention adopts the following technical solution:

[0011] A flexible transmission link is provided for connecting an actuator system and a main drive system, including a first pin, a second pin, a guide rod, a connecting rod, and an elastic element;

[0012] One end of the first pin is connected to the guide rod, and the other end is connected to one of the execution system and the main drive system;

[0013] One end of the second pin is connected to the connecting rod, and the other end is connected to the actuator and another part of the main drive system;

[0014] One end of the elastic element is connected to the first pin, and the other end is connected to the second pin. When the elastic element is in a relaxed state, the end of the guide rod away from the first pin is in contact with the end of the connecting rod away from the second pin.

[0015] Preferably, the system also includes a guide member, which is inserted into the elastic member, and both the guide rod and the connecting rod are inserted into the guide member.

[0016] Preferably, the guide member has a fixing hole, and the guide rod or the connecting rod has a fixing groove, with the fixing member passing through the fixing hole and connecting to the fixing groove.

[0017] Preferably, the end of the guide rod near the connecting rod is provided with a guide surface, and / or,

[0018] The connecting rod has a guide surface at one end near the guide rod.

[0019] Preferably, the guide member is clearance-fitted with both the guide rod and the connecting rod.

[0020] Preferably, the guide element is a copper sleeve.

[0021] Preferably, the device also includes a mounting base, with the mounting base provided on both the first pin and the second pin. One end of the elastic member is connected to the mounting base on the first pin, and the other end is connected to the mounting base on the second pin.

[0022] Preferably, the guide rod is provided with a positioning step at one end near the first pin, and the positioning step can press the mounting seat on the first pin against the first pin.

[0023] Preferably, one end of the guide rod is threaded, the first pin is provided with a threaded groove, and the guide rod is threaded into the threaded groove, and / or...

[0024] One end of the connecting rod is threaded, and the second pin is provided with a threaded groove, and the connecting rod is threaded into the threaded groove.

[0025] Preferably, the elastic element is a tension spring.

[0026] The beneficial effects of this utility model are:

[0027] The elastic transmission linkage provided by this utility model, when the elastic element is in the relaxed state, has the end of the guide rod away from the first pin and the end of the connecting rod away from the second pin in contact with each other. At this time, the main transmission system can transmit power to the execution system through the first pin, guide rod, connecting rod, and second pin. When the main transmission system is disconnected from the execution system due to process or control requirements, the power of the main transmission system can stretch and deform the elastic element. At this time, the guide rod and connecting rod separate, the execution system does not operate, and the main transmission continues to operate normally. Its structure is simple, significantly saving space, and it can withstand a wide load range, meeting the needs of various operating applications. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the elastic transmission link provided in an embodiment of the present invention;

[0029] Figure 2 This is an exploded view of the elastic transmission link provided in an embodiment of this utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the guide member provided in an embodiment of this utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the first latch provided in an embodiment of the present utility model;

[0032] Figure 5 This is a schematic diagram of the connecting rod provided in an embodiment of the present utility model.

[0033] In the diagram: 1. First pin; 11. Threaded groove; 2. Second pin; 3. Guide rod; 32. Fixing groove; 4. Connecting rod; 5. Elastic element;

[0034] 6. Guide component; 61. Fixing hole; 7. Mounting base. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] like Figures 1 to 5 As shown, this embodiment provides an elastic transmission link for connecting the execution system and the main transmission system, including a first pin 1, a second pin 2, a guide rod 3, a connecting rod 4, and an elastic element 5.

[0040] The first pin 1 is connected at one end to the guide rod 3, and at the other end to one of the actuator system and the main drive system. The second pin 2 is connected at one end to the connecting rod 4, and at the other end to the actuator system and the main drive system. The elastic element 5 is connected at one end to the first pin 1 and at the other end to the second pin 2. When the elastic element 5 is in the relaxed state, the end of the guide rod 3 away from the first pin 1 is in contact with the end of the connecting rod 4 away from the second pin 2.

[0041] Specifically, in this embodiment, the first pin 1 and the second pin 2 have the same structure but different positions. Both the first pin 1 and the second pin 2 are provided with connecting holes. The first pin 1 is connected to the execution system through the connecting hole, and the second pin 2 is connected to the main drive system through the connecting hole.

[0042] It is understood that, in the elastic transmission linkage provided in this embodiment, when the elastic element 5 is in the relaxed state, the end of the guide rod 3 away from the first pin 1 is in contact with the end of the connecting rod 4 away from the second pin 2. At this time, the main transmission system can transmit power to the execution system through the first pin 1, guide rod 3, connecting rod 4, and second pin 2. When the main transmission system is disconnected from the execution system due to process or control requirements, the power of the main transmission system can stretch and deform the elastic element 5. At this time, the guide rod 3 separates from the connecting rod 4, the execution system does not operate, and the main transmission still operates normally. The elastic transmission linkage provided in this embodiment integrates the rigid linkage and clutch function of the prior art, greatly simplifying the structure and saving a significant amount of space.

[0043] For example, in this embodiment, the elastic element 5 is a tension spring. One end of the elastic element 5 is coaxially connected to the first pin 1, and the other end is coaxially connected to the second pin 2. It can be understood that when the tension spring is in the relaxed state, the coils of the tension spring are generally tightly closed without gaps. When the guide rod 3 and the connecting rod 4 are inserted into the elastic element 5, they can form a rigid whole, which can effectively transmit the power of the main drive system to the execution system.

[0044] Furthermore, in some embodiments, the elastic transmission link further includes a guide member 6, which is inserted into the elastic member 5. The guide rod 3 and the connecting rod 4 are both inserted into the guide member 6. It is understood that the maximum width dimension of the guide member 6 is smaller than the inner diameter of the elastic member 5. The length of the guide member 6 is controlled according to the lengths of the guide rod 3 and the connecting rod 4 to ensure that when the elastic member 5 is stretched to its maximum length, the guide rod 3 still has a distance remaining within the guide member 6 and is not completely detached from it. This ensures that the entire elastic transmission link can be properly reset and maintains the rigidity of the entire elastic transmission link after reset.

[0045] For example, in this embodiment, the guide member 6 is a copper sleeve. Of course, the guide member 6 can also be in other forms, such as a polygonal prism with a through hole inside, as long as the rigidity characteristics of the elastic transmission link can be guaranteed.

[0046] In some embodiments, the guide member 6 has a fixing hole 61, and the guide rod 3 or connecting rod 4 has a fixing groove 32. The fixing member passes through the fixing hole 61 and connects with the fixing groove 32. It can be understood that this arrangement allows the guide member 6 to move with the guide rod 3 or connecting rod 4, reducing the need for frequent disengagement and resetting at both ends of the guide member 6 to only one end, greatly reducing the wear of the guide member 6 and improving its service life.

[0047] In this embodiment, the connecting rod 4 is provided with a fixing groove 32, and the fixing element is a pin, which passes through the fixing hole 61. By fixing the guide 6 to the connecting rod 4, the guide 6 is also fixed together with the second pin 2 connecting the main drive system. When the main drive system resumes power transmission, the impact of the connecting rod 4 and the second pin 2, which are closer to the main drive system, on the guide 6 can be reduced, further reducing the wear of the guide 6 and thus improving the service life of the guide 6.

[0048] Furthermore, in some embodiments, the end of the guide rod 3 near the connecting rod 4 is provided with a guide surface, and / or,

[0049] A guide surface is provided at the end of the connecting rod 4 near the guide rod 3.

[0050] Understandably, by providing guide surfaces on guide rod 3 and connecting rod 4, when the elastic transmission link needs to return from a stretched state to a relaxed state (i.e., when the main transmission system re-transmits power), guide rod 3 and connecting rod 4 need to re-fit. The guide surfaces act as guides when they contact each other, making it easier for guide rod 3 and connecting rod 4 to align and slide into the correct position, avoiding reset failure due to misalignment or jamming. This ensures that the elastic transmission link can reliably reset after multiple working cycles, maintaining its rigid power transmission characteristics. Furthermore, it reduces vibration and noise when guide rod 3 and connecting rod 4 contact each other at the moment of reset, making power transmission smoother. Guide surfaces include, but are not limited to, inclined surfaces and curved surfaces.

[0051] Specifically, such as Figure 3 and Figure 5 As shown, in this embodiment, since the connecting rod 4 is fixedly set with the guide member 6, the connecting rod 4 does not need to slide within the guide member 6. Therefore, a guide surface is only provided at the end of the guide rod 3 near the connecting rod 4.

[0052] Furthermore, in this embodiment, the guide member 6 is clearance-fitted with both the guide rod 3 and the connecting rod 4. It is understood that in this embodiment, the inner diameter of the guide member 6 is slightly larger than the diameters of the guide rod 3 and the connecting rod 4, and the outer diameter of the guide member 6 is slightly smaller than the inner diameter of the elastic member 5. This arrangement provides a certain margin of error when the guide rod 3 needs to slide within the guide member 6, allowing the guide rod 3 to move smoothly even with slight tilting, without interference or jamming with the inner wall of the guide member 6. It also reduces interference and collisions between the guide rod 3 and the inner wall of the guide member 6, which helps maintain the overall rigidity of the elastic transmission link, achieving precise control of motion while extending its service life.

[0053] Furthermore, in some embodiments, the elastic transmission link also includes a mounting seat 7, with mounting seats 7 provided on both the first pin 1 and the second pin 2. One end of the elastic member 5 is connected to the mounting seat 7 on the first pin 1, and the other end is connected to the mounting seat 7 on the second pin 2.

[0054] For example, such as Figure 2 and Figure 5 As shown, in this embodiment, the outer surface of the mounting base 7 is provided with threads. One end of the tension spring is threadedly connected to the mounting base 7 on the first pin 1, and the other end is threadedly connected to the mounting base 7 on the second pin 2. With this configuration, both ends of the elastic element 5 can be connected to the first pin 1 and the second pin 2 by screwing them together, making installation and disassembly very convenient. Furthermore, the elastic force of the elastic element 5 can be adjusted by adjusting the connection length of the elastic element 5 on the mounting base 7. When the elastic element 5 experiences fatigue due to long-term use, it can be fine-tuned to further improve the service life of the elastic transmission link. In some other embodiments, hooks can also be provided on the mounting base 7, with both ends of the tension spring fixed to the hooks. Of course, the mounting base 7 can also be in other forms, as long as it can conveniently fix both ends of the elastic element 5 to the first pin 1 and the second pin 2 respectively; further examples will not be provided here.

[0055] Furthermore, in some embodiments, a positioning step is provided at the end of the guide rod 3 near the first pin 1, the positioning step being able to press the mounting seat 7 on the first pin 1 against the first pin 1. Specifically, as shown... Figure 2 As shown, in this embodiment, the guide rod 3 is divided into two sections with different diameters. The section with the smaller diameter is connected to the first pin 1. The end of the section with the larger diameter that is close to the end of the section with the smaller diameter can abut against the mounting base 7 to fix the mounting base 7 between the first pin 1 and the guide rod 3, thereby fixing the mounting base 7.

[0056] To facilitate the installation and replacement of the connecting rod 4 in the elastic transmission linkage to suit different usage requirements, in this embodiment, the mounting seat 7 on the second pin 2 is integrally formed with the connecting rod 4.

[0057] More specifically, in this embodiment, one end of the guide rod 3 is provided with a thread, the first pin 1 is provided with a threaded groove 11, the guide rod 3 is threadedly connected to the threaded groove 11, one end of the connecting rod 4 is provided with a thread, the second pin 2 is provided with a threaded groove 11, and the connecting rod 4 is threadedly connected to the threaded groove 11.

[0058] Of course, in some other embodiments, the connecting rod 4 and the second pin 2 can also be integrally formed. This embodiment will not be described in detail here.

[0059] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A flexible transmission link for connecting an actuation system and a main transmission system, characterized in that, It includes a first pin (1), a second pin (2), a guide rod (3), a connecting rod (4), and an elastic element (5); One end of the first pin (1) is connected to the guide rod (3), and the other end is connected to one of the execution system and the main transmission system; One end of the second pin (2) is connected to the connecting rod (4), and the other end is connected to the actuator and another part of the main drive system; One end of the elastic element (5) is connected to the first pin (1), and the other end is connected to the second pin (2). When the elastic element (5) is in a relaxed state, the end of the guide rod (3) away from the first pin (1) is in contact with the end of the connecting rod (4) away from the second pin (2).

2. The elastic transmission link according to claim 1, characterized in that, It also includes a guide member (6), which is inserted into the elastic member (5), and the guide rod (3) and the connecting rod (4) are both inserted into the guide member (6).

3. The elastic transmission link according to claim 2, characterized in that, The guide member (6) has a fixing hole (61), and the guide rod (3) or the connecting rod (4) has a fixing groove (32). The fixing member passes through the fixing hole (61) and connects to the fixing groove (32).

4. The elastic transmission link according to claim 2, characterized in that, The guide rod (3) has a guide surface at one end near the connecting rod (4), and / or, The connecting rod (4) has a guide surface at one end near the guide rod (3).

5. The elastic transmission link according to claim 2, characterized in that, The guide member (6) is clearance-fitted with the guide rod (3) and the connecting rod (4).

6. The elastic transmission link according to claim 2, characterized in that, The guide component (6) is a copper sleeve.

7. The elastic transmission link according to claim 1, characterized in that, It also includes a mounting base (7), on which the first pin (1) and the second pin (2) are provided with the mounting base (7), and one end of the elastic member (5) is connected to the mounting base (7) on the first pin (1), and the other end is connected to the mounting base (7) on the second pin (2).

8. The elastic transmission link according to claim 7, characterized in that, The guide rod (3) has a positioning step at one end near the first pin (1), and the positioning step can press the mounting seat (7) on the first pin (1) against the first pin (1).

9. The elastic transmission link according to any one of claims 1-8, characterized in that, One end of the guide rod (3) is threaded, and the first pin (1) is provided with a threaded groove (11). The guide rod (3) is threaded into the threaded groove (11), and / or, One end of the connecting rod (4) is provided with a thread, and the second pin (2) is provided with a threaded groove (11). The connecting rod (4) is threaded into the threaded groove (11).

10. The elastic transmission link according to any one of claims 1-8, characterized in that, The elastic element (5) is a tension spring.

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