Connecting structure capable of realizing floating of connecting rod

Abstract

The utility model discloses a connecting structure capable of realizing floating of a connecting rod, which relates to the technical field of connecting rod floating connecting structures and comprises a locking nut, a spiral groove is arranged on the inner wall of the locking nut, a driving rod is mounted in the locking nut, a spiral thread matched with the spiral groove is arranged on the outer side of the driving rod, and the locking nut is connected with the driving rod. The driving rod is spirally connected with the locking nut through a spiral thread, a moving groove is formed in the driving rod, a guide shaft is slidably installed in the moving groove and connected with an extension rod, and the top of the extension rod is matched with an inner cavity of the locking nut; when the driving rod is controlled to rotate relative to the locking nut, the driving rod does linear motion in the axial direction, the distance between the driving rod and the extension rod can be adjusted conveniently, the extension rod can move up and down by a certain distance in an inner cavity of the locking nut, then the connecting rod can float correspondingly, and hard contact is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting rod floating connection structures, in particular to a connection structure capable of realizing connecting rod floating. Background Art

[0002] A floating connecting rod connection is a mechanical connection that allows the connecting rod to move or adjust to a certain degree when subjected to cyclically varying forces, thereby absorbing vibrations and compensating for errors. This structure is very important in mechanical engineering, improving the stability and reliability of mechanical systems and reducing additional stress caused by manufacturing errors or varying operating conditions.

[0003] In mechanical structures, shocks and vibrations caused by load changes or manufacturing errors can easily damage the transmission system. In order to reduce the hard contact between the connecting rod and other components, thereby reducing wear and extending the service life of mechanical components, a connection structure that can achieve connecting rod floating is required. Utility Model Content

[0004] In response to the deficiencies of the prior art, the present invention provides a connection structure that can achieve connecting rod floating, solving the problem raised in the background art that the transmission system is easily damaged when load changes or manufacturing errors cause impact and vibration due to hard contact.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a connection structure that can realize floating of the connecting rod, including a locking nut, a spiral groove is provided on the inner wall of the locking nut, a drive rod is installed inside the locking nut, and a spiral pattern that is adapted to the spiral groove is provided on the outer side of the drive rod. The drive rod is spirally connected to the locking nut through the spiral pattern, and a movable groove is provided inside the drive rod, and a guide shaft is slidably installed in the movable groove. The guide shaft is connected to the extension rod, and the top of the extension rod is adapted to the inner cavity of the locking nut.

[0006] Preferably, a base is installed at one end of the movable groove.

[0007] Preferably, the outer side of the locking nut is provided with an anti-slip groove, and the locking nut is provided with a mounting groove, the mounting groove is semicircular, and both ends of the mounting groove are provided with through grooves connected to the inner cavity of the locking nut.

[0008] Preferably, limiting grooves are provided on both sides of the driving rod.

[0009] Preferably, a stop ring is installed in the installation groove, and the stop ring includes two sets of symmetrical connecting rods, one end of the connecting rod is fixedly connected to a limiting rod, and the limiting rod passes through the through slot and is inserted into the limiting slot.

[0010] Preferably, a connecting groove is fixedly installed at the other end of the connecting rod, a spring is installed in the connecting groove, the connecting groove is connected to another connecting groove through the spring, and a second anti-slip groove is provided on the outer side of the connecting groove.

[0011] Preferably, the two groups of connecting rods are connected to form a semicircular ring shape and fit closely with the inner wall of the installation groove.

[0012] The utility model provides a connection structure that can realize floating connecting rod, which has the following beneficial effects:

[0013] (1) The utility model controls the driving rod to rotate relative to the locking nut, so that the driving rod can move linearly along the axial direction, which is convenient for adjusting the distance between the driving rod and the extension rod, and enables the extension rod to move up and down a certain distance in the inner cavity of the locking nut, thereby enabling the connecting rod to float accordingly and avoid hard contact.

[0014] (2) The utility model sets a stop ring to limit the driving rod, thereby preventing the driving ring from rotating unexpectedly and ensuring the stability of the floating range.

[0015] This solves the problem that the transmission system is easily damaged when load changes or manufacturing errors cause shocks and vibrations due to hard contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a diagram showing the overall structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 Overall structural cross-section;

[0018] Figure 3 For this utility model Figure 1 Cross-sectional view of the overall structure;

[0019] Figure 4 For this utility model Figure 3 Structural diagram of the stop ring.

[0020] In the figure, 1. Locking nut; 11. Anti-slip groove 1; 12. Mounting groove; 13. Spiral groove; 2. Drive rod; 21. Moving groove; 22. Limiting groove; 3. Extension rod; 4. Base; 5. Guide shaft; 6. Stop ring; 61. Limiting rod; 62. Connecting rod; 63. Connecting groove; 631. Anti-slip groove 2; 632. Spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1:

[0023] See also Figure 1-Figure 4 A connecting structure capable of achieving floating connecting rod includes a locking nut 1, a spiral groove 13 being provided on the inner wall of the locking nut 1, a driving rod 2 being installed inside the locking nut 1, a spiral pattern being provided on the outer side of the driving rod 2 to match the spiral groove 13, the driving rod 2 being spirally connected to the locking nut 1 via the spiral pattern, a movable groove 21 being provided inside the driving rod 2, a guide shaft 5 being slidably installed in the movable groove 21, the guide shaft 5 being connected to the extension rod 3, the top of the extension rod 3 being matched with the inner cavity of the locking nut 1;

[0024] A base 4 is mounted on one end of the movable groove 21 .

[0025] Specifically, when a rotational force is applied to the drive rod 2, the spiral pattern on the outside of the drive rod 2 fits in with the spiral groove 13 on the inner wall of the locking nut 1, and the drive rod 2 will generate axial movement relative to the locking nut 1 under the action of the spiral. During this process, the distance between the drive rod 2 and the extension rod 3 is constantly adjusted. When the drive rod 2 and the extension rod 3 fit tightly together, the extension rod 3 can be prevented from floating. When there is a certain distance between the drive rod 2 and the extension rod 3, the extension rod 3 has a certain floating space. When the extension rod 3 is connected to the external connecting rod, the up and down movement of the extension rod 3 will achieve corresponding floating with the connecting rod. By controlling the rotation direction and angle of the drive rod 2, the floating distance of the extension rod 3 can be precisely controlled, thereby achieving flexible adjustment of the floating amplitude of the connecting rod, reducing the hard contact between the connecting rod and other components, thereby reducing wear and extending the service life of the mechanical components.

[0026] The base 4 acts as a buffer. Without the buffer, stress concentration would occur during the floating movement of the connecting rod due to contact between the guide shaft 5 and the movable groove 21 of the drive rod 2. The buffer evenly distributes and absorbs the force transmitted by the guide shaft 5, preventing stress concentration in a localized area. This improves the component's load-bearing capacity and reliability, reduces wear between the guide shaft 5 and the drive rod 2, and extends the component's service life.

[0027] Example 2:

[0028] To fix the floating distance, see Figure 1-Figure 4On the basis of Example 1, the outer side of the locking nut 1 is provided with an anti-slip groove 11, and the locking nut 1 is provided with a mounting groove 12, which is semi-circular in shape, and both ends of the mounting groove 12 are provided with through grooves connected to the inner cavity of the locking nut 1;

[0029] Limiting grooves 22 are provided on both sides of the driving rod 2;

[0030] A stop ring 6 is installed in the mounting groove 12. The stop ring 6 includes two sets of symmetrical connecting rods 62. One end of the connecting rod 62 is fixedly connected to a limit rod 61. The limit rod 61 passes through the through slot and is inserted into the limit slot 22.

[0031] The other end of the connecting rod 62 is fixedly mounted with a connecting groove 63, in which a spring 632 is mounted. The connecting groove 63 is connected to another connecting groove 63 via the spring 632, and an anti-slip groove 631 is provided on the outer side of the connecting groove 63;

[0032] The two groups of connecting rods 62 are connected to form a semicircular ring shape and fit closely with the inner wall of the installation groove 12 .

[0033] Specifically, when the driving rod 2 rotates and drives the extension rod 3 to move to the desired floating position, the limiting rods 61 in the stop ring 6 pass through the through slots at both ends of the mounting slot 12 and are inserted into the limiting slots 22 on both sides of the driving rod 2, thereby limiting the rotation of the driving rod 2 and preventing the driving rod 2 from further axial movement, thereby fixing the position of the driving rod 2 and achieving a fixed floating distance of the connecting rod;

[0034] When installing the retaining ring 6, when the semicircular ring structure composed of the two groups of connecting rods 62 is placed into the installation groove 12 and the limiting rod 61 is aligned with the limiting groove 22, the spring 632 is in a stretched state. This is because the distance between the connecting grooves 63 makes it difficult to insert the limiting rod 61 from both sides of the locking nut 1 into the limiting groove 22 in the natural state, so it is necessary to pull the connecting grooves 63 outward to increase the distance between the two limiting rods 61 so that the limiting rod 61 can be smoothly inserted into the limiting groove 22. Once the limiting rod 61 is inserted into the limiting groove 22, the spring 632 generates an inward elastic force due to being stretched. This elastic force will cause the two groups of connecting rods 62 to tend to approach each other, thereby driving the limiting rod 61 to press tightly against the inner wall of the limiting groove 22. This pre-tightening force ensures that the limiting rod 61 can be firmly maintained in the limiting groove 22 under normal conditions, preventing it from accidentally falling out due to slight vibration or shaking;

[0035] The two sets of connecting rods 62 are connected in a semicircular ring shape and fit closely to the inner wall of the mounting groove 12. This fit allows the stop ring 6 to maintain a stable position in the mounting groove 12, preventing it from rotating or shifting easily. The second anti-slip groove 631 on the outside of the connecting groove 63 increases the friction when the operator operates the stop ring 6, thereby facilitating the separation of the connecting groove 63. The first anti-slip groove 11 facilitates the operator to secure the lock nut 1, thereby controlling the rotation of the drive rod 2.

[0036] Working principle: When the equipment is in use and the floating distance needs to be adjusted, the operator controls the two connecting grooves 63 to separate through the anti-slip groove 2 631, and then drives the limit rod 61 to disengage from the limit groove 22 through the connecting rod 62, and takes out the stop ring 6. Then, with the assistance of the anti-slip groove 11, when the driving rod 2 is rotated, the axial movement is generated due to the spiral fit, and the distance between the driving rod 2 and the extension rod 3 changes. When the distance is zero, the extension rod 3 has no floating. If there is a distance, there is floating space. After being connected to the external connecting rod, the connecting rod can be driven to float. When the driving rod 2 is rotated to make the extension rod 3 reach the predetermined floating position, the stop ring 6 is placed in the installation groove 12, and the stretching spring 632 increases the distance between the limit rod 61 and inserts it into the limit groove 22. The rebound force of the spring 632 makes the limit rod 61 close to the inner wall of the limit groove 22, fixing the position of the driving rod 2 and preventing the driving rod 2 from rotating again, thereby achieving the fixing of the floating distance of the connecting rod. The fit of the stop ring 6 and the installation groove 12 and the anti-slip groove can keep it stable, which is convenient for operation and control.

[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0038] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A connecting structure capable of achieving connecting rod floating, comprising a locking nut (1), characterized in that: A spiral groove (13) is provided on the inner wall of the locking nut (1), a driving rod (2) is installed inside the locking nut (1), a spiral pattern matching the spiral groove (13) is provided on the outer side of the driving rod (2), the driving rod (2) is spirally connected to the locking nut (1) through the spiral pattern, a moving groove (21) is provided inside the driving rod (2), a guide shaft (5) is slidably installed in the moving groove (21), the guide shaft (5) is connected to the extension rod (3), and the top of the extension rod (3) is matched with the inner cavity of the locking nut (1).

2. The connecting structure capable of achieving connecting rod floating according to claim 1, characterized in that: A base (4) is installed at one end of the movable groove (21).

3. The connecting structure capable of achieving connecting rod floating according to claim 1, characterized in that: The outer side of the locking nut (1) is provided with an anti-slip groove (11), and the locking nut (1) is provided with a mounting groove (12), the mounting groove (12) is semi-circular, and both ends of the mounting groove (12) are provided with through grooves connected to the inner cavity of the locking nut (1).

4. The connecting structure capable of achieving connecting rod floating according to claim 3, characterized in that: Limiting grooves (22) are provided on both sides of the driving rod (2).

5. The connecting structure capable of achieving connecting rod floating according to claim 4, characterized in that: A stop ring (6) is installed in the installation groove (12), and the stop ring (6) includes two sets of symmetrical connecting rods (62). One end of the connecting rod (62) is fixedly connected to a limiting rod (61), and the limiting rod (61) passes through the through slot and is inserted into the limiting groove (22).

6. The connecting structure capable of achieving connecting rod floating according to claim 5, characterized in that: The other end of the connecting rod (62) is fixedly mounted with a connecting groove (63), a spring (632) is mounted in the connecting groove (63), the connecting groove (63) is connected to another connecting groove (63) via the spring (632), and a second anti-slip groove (631) is provided on the outer side of the connecting groove (63).

7. The connecting structure capable of achieving connecting rod floating according to claim 6, characterized in that: The two groups of connecting rods (62) are connected to form a semicircular ring and fit with the inner wall of the installation groove (12).

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