Pin shaft with damping structure

Abstract

The invention relates to the technical field of pin shafts, in particular to a pin shaft with a damping structure, which comprises a pin shaft body, a first rubber sleeve fixedly sleeves a shaft body of the pin shaft body, a connecting sleeve sleeves the outer side of the first rubber sleeve, one end of the pin shaft body is provided with a first embedding groove, and a screw rod is fixed on the surface of the connecting sleeve and penetrates through the pin shaft body. The end, away from the pin shaft body, of the threaded rod is sleeved with a nut in a screwed mode, and a rubber plug block is fixedly arranged on a rod body of the threaded rod in a sleeving mode and inserted into the first embedding groove. The hinge pin has the beneficial effects that through the design of the first rubber sleeve and the second rubber sleeve, relative circular motion damping between the connecting sleeve and the hinge pin body is provided, vibration energy is absorbed through elastic deformation of rubber materials, and looseness and abrasion between connecting parts are effectively reduced. Due to the matched design of the inserting piece and the limiting groove and the elastic deformation of the rubber clamping block between the inserting piece and the limiting groove, the damping effect of the pin shaft in the horizontal direction is further enhanced, and the connection stability is improved.

Description

Technical Field

[0001] The invention relates to the field of pin shafts, in particular to a pin shaft with a damping structure. Background Art

[0002] In the field of mechanical connection, pins are a common connection element widely used in various equipment and structures to achieve relative fixed or rotating connections between components. However, traditional pin designs often lack sufficient damping performance, resulting in loosening or wear between connected components under vibration or impact loads, thus affecting the stability and service life of the equipment.

[0003] In order to solve the above problems, various pin shaft designs with damping structures have appeared in the prior art. These designs usually add damping elements such as rubber sleeves and springs to the pin shaft body to absorb and consume vibration energy and improve the stability and durability of the connection. However, these designs often have problems such as complex structure, inconvenient installation, poor damping effect or high cost, which limits their promotion and use in practical applications.

[0004] Therefore, developing a pin with a damping structure that is simple in structure, easy to install, has significant damping effect and reasonable cost is of great significance for improving the stability and durability of mechanical connections. Summary of the invention

[0005] The object of the present invention is to provide a pin shaft with a damping structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pin shaft with a damping structure, comprising a pin shaft body, a rubber sleeve one being sleeved and fixed on the shaft body of the pin shaft body, a connecting sleeve being sleeved on the outer side of the rubber sleeve one, an embedding groove one being opened at one end of the pin shaft body, a screw being fixed on the surface of the connecting sleeve, the screw shaft passing through the pin shaft body, a nut being threadedly connected on one end of the screw shaft away from the pin shaft body, a rubber plug being sleeved and fixed on the rod body of the screw shaft, the rubber plug being inserted into the embedding groove one, an extension handle being fixed on the surface of the screw shaft, and a baffle being inserted on the surface of the extension handle.

[0007] Preferably, the rubber sleeve 1 is a T-shaped round tube, the connecting sleeve is a cylindrical structure, the outer side of the connecting sleeve is provided with a rubber sleeve 2, and one end of the rubber sleeve 2 is integrally formed on the end plate of the rubber sleeve 1.

[0008] Preferably, the embedding groove 1 is a "U"-shaped circular groove, and the installation groove is a "T"-shaped circular hole. After the nut is screwed and locked at the end of the screw, the blocking block is clamped between the connecting sleeve and the embedding groove 1.

[0009] Preferably, a blocking block is inserted into one end of the installation groove, the blocking block is a round block, a buckle groove is opened on the surface of the blocking block, the buckle groove is a hexagonal groove, and the buckle groove is sleeved on the nut.

[0010] Preferably, a plurality of card strips are integrally formed on the side wall of the blocking block, the card strips are square-shaped, the card strips are inserted into card slots, and the card slots are provided on the surface of the mounting slots.

[0011] Preferably, a finger groove is provided on the surface of the blocking block, the finger groove is a "U"-shaped groove, and two finger grooves are provided.

[0012] Preferably, a plug-in piece is fixed on the surface of the connecting sleeve, and the plug-in piece is an arc-shaped plate-like structure. Two plug-ins are provided, and the two plug-ins are symmetrically distributed about the screw rod. The plug-in piece is inserted into a limiting groove, and the limiting groove is an arc-shaped groove.

[0013] Preferably, the curvature of the limiting groove is greater than that of the insert, and side grooves are provided at both ends of the limiting groove. Rubber clamps are fixed inside the side grooves, and the rubber clamps are clamped between the insert and the limiting groove to generate elastic deformation.

[0014] Preferably, a socket is provided on the surface of the extension handle, the baffle is inserted into the inside of the socket, a rubber ring is fixedly mounted on the rod body of the extension handle, two rubber rings are provided, and after the baffle is inserted into the socket, the two rubber rings are symmetrically distributed about the extension handle, and the rubber ring is clamped between the baffle and the socket to produce elastic deformation.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The pin shaft with damping structure proposed in the present invention not only provides relative circular motion damping between the connecting sleeve and the pin shaft body through the design of rubber sleeve 1 and rubber sleeve 2, but also absorbs vibration energy through elastic deformation of rubber material, effectively reducing looseness and wear between connecting parts. The matching design of the insert and the limit groove, as well as the elastic deformation of the rubber clamp between the insert and the limit groove, further enhance the damping effect of the pin shaft in the horizontal direction and improve the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the connection structure between the pin body and the block of the present invention;

[0019] Figure 3 It is a side view of the structure of the present invention;

[0020] Figure 4 for Figure 3 Structural cross-section view at AA in the middle;

[0021] Figure 5 for Figure 4 A schematic diagram of the structure enlargement in the middle;

[0022] Figure 6 for Figure 4 A magnified schematic diagram of the structure at B in the middle;

[0023] Figure 7 It is a schematic diagram of the connection structure of the connecting sleeve and the extension handle of the present invention;

[0024] Figure 8 This is a schematic diagram of the connection structure between the insert and the rubber clamp of the present invention;

[0025] Fig. 9 This is a schematic diagram of the pin body structure of the present invention;

[0026] Fig.10 It is a schematic diagram of the block structure of the present invention.

[0027] In the figure: pin body 1, rubber sleeve 1 2, connecting sleeve 3, rubber sleeve 2 4, embedded groove 1 5, installation groove 6, screw 7, rubber plug 8, nut 9, blocking block 10, buckle groove 11, clamping strip 12, clamping slot 13, finger groove 14, limit groove 15, insert 16, side groove 17, rubber clamp block 18, extension handle 19, socket 20, baffle 21, rubber ring 22. DETAILED DESCRIPTION

[0028] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 10The present invention provides a technical solution: a pin with a damping structure, comprising a pin body 1, a rubber sleeve 2 is sleeved and fixed on the shaft body of the pin body 1, a connecting sleeve 3 is sleeved on the outer side of the rubber sleeve 2, the rubber sleeve 2 is a "T"-shaped round tube, the connecting sleeve 3 is a cylindrical structure, a rubber sleeve 2 is sleeved on the outer side of the connecting sleeve 3, and one end of the rubber sleeve 24 is integrally formed on the end plate of the rubber sleeve 2; an embedding groove 5 is opened at one end of the pin body 1, a screw rod 7 is fixed on the surface of the connecting sleeve 3, the screw rod 7 passes through the pin body 1, and a nut 9 is threadedly sleeved on the end of the screw 7 away from the pin body 1, the embedding groove 5 is a "U"-shaped circular groove, and the installation groove 6 is a "T"-shaped round hole. After the nut 9 is threaded and locked at the end of the screw rod 7, the block 10 is clamped between the connecting sleeve 3 and the embedding groove 5. When in use, the connecting sleeve 3 is inserted into the groove body between the rubber sleeve 1 2 and the rubber sleeve 2 4. At this time, the screw rod 7 is inserted into the installation groove 6. After the nut 9 is screwed on the end of the screw rod 7 and locked, the block 10 is clamped on the inner side of the embedding groove 1 5 to achieve the damping effect of the connecting sleeve 3 and the pin shaft body 1 in the horizontal direction; the rubber sleeve 1 2 is clamped between the connecting sleeve 3 and the pin shaft body 1, and to a certain extent plays a damping role during the relative circular motion between the connecting sleeve 3 and the pin shaft body 1.

[0030] A block 10 is inserted into one end of the mounting groove 6. The block 10 is a round block. A buckle groove 11 is provided on the surface of the block 10. The buckle groove 11 is a hexagonal groove and is sleeved on the nut 9. A rubber plug 8 is sleeved and fixed on the rod body of the screw 7. The rubber plug 8 is inserted into the embedded groove 5. A plurality of card strips 12 are integrally formed on the side wall of the block 10. The card strips 12 are square strips. The card strips 12 are inserted into the card slots 13. The card slots 13 are provided on the surface of the mounting groove 6. A finger groove 14 is provided on the surface of the block 10. The finger groove 14 is " U"-shaped groove, two finger grooves 14 are provided; a plug-in piece 16 is fixed on the surface of the connecting sleeve 3, and the plug-in piece 16 is a circular arc plate structure. There are two plug-in pieces 16, and the two plug-in pieces 16 are symmetrically distributed about the screw rod 7. The plug-in piece 16 is inserted into the limiting groove 15, and the limiting groove 15 is a circular arc groove; the curvature of the limiting groove 15 is greater than the curvature of the plug-in piece 16, and side grooves 17 are provided at both ends of the limiting groove 15. A rubber clamping block 18 is fixed inside the side groove 17, and the rubber clamping block 18 is clamped between the plug-in piece 16 and the limiting groove 15 to generate elastic deformation.

[0031] When in use, after the blocking block 10 is inserted into the notch of the mounting groove 6, the buckle groove 11 is buckled on the nut 9, and the clamping strip 12 is inserted into the corresponding clamping groove 13 to prevent the nut 9 from rotating in the mounting groove 6, and after the insert 16 is inserted into the limit groove 15, the rotation range of the connecting sleeve 3 is limited, that is, the connecting sleeve 3 can be slightly rotated with the pin shaft body 1 as the central axis. During the rotation, the rubber clamp block 18 is squeezed and deformed to play a damping role. The small rotation of the connecting sleeve 3 will not affect the firmness of the screw 7 and the nut 9 after being screwed.

[0032] An extension handle 19 is fixed on the surface of the screw rod 7, and a baffle 21 is inserted into the surface of the extension handle 19; a plug hole 20 is opened on the surface of the extension handle 19, and the baffle 21 is inserted into the inside of the plug hole 20. A rubber ring 22 is fixed on the rod body of the extension handle 19, and two rubber rings 22 are provided. After the baffle 21 is inserted into the plug hole 20, the two rubber rings 22 are symmetrically distributed about the extension handle 19, and the rubber ring 22 is clamped between the baffle 21 and the plug hole 20 to generate elastic deformation.

[0033] When in use, after the pin body 1 is connected to the connecting sleeve 3 and inserted into the hole of the connecting component, the stop bar 21 is inserted into the insertion hole 20 to achieve the anti-dropping effect after the pin body 1 is installed in the connecting component, and the two rubber rings 22 limit the stop bar 21 to prevent the stop bar 21 from falling off the extension handle 19. The detailed process of the pin with damping structure is as follows: Check whether all components such as the pin body 1, rubber sleeve 1 2, connecting sleeve 3, rubber sleeve 2 4, screw 7, rubber plug 8, nut 9, block 10, insert 16, limit slot 15 (if provided as an independent component), extension handle 19, stop bar 21 and rubber ring 22 are complete and intact.

[0034] Sleeve the rubber sleeve 12 on the shaft of the pin body 1, and ensure that the "T"-shaped structure of the rubber sleeve 12 is correctly aligned. Connect one end of the rubber sleeve 24 to the end plate of the rubber sleeve 2 in an integral manner, and ensure that the two are tightly combined. Insert the connecting sleeve 3 into the groove between the rubber sleeve 12 and the rubber sleeve 24, and ensure that the cylindrical structure of the connecting sleeve 3 completely covers the outside of the rubber sleeve 2. Pass the screw 7 through the connecting sleeve 3 and insert it into the embedding groove 15 (a "U"-shaped circular groove) and the corresponding installation groove 6 (a "T"-shaped circular hole) opened on the pin body 1. At the end of the screw 7 away from the pin body 1, sleeve the rubber plug 8 on the screw 7 and insert it into the embedding groove 15. Screw the nut 9 on the end of the screw 7 and tighten it with a screwdriver or a wrench until the nut 9 is firmly locked on the screw 7. Insert the block 10 into the notch of the installation groove 6, ensure that the buckle groove 11 on the surface of the block 10 buckles on the nut 9, and at the same time, the clamping strip 12 on the side wall of the block 10 is inserted into the corresponding clamping groove 13. The insertion and fixation of the block 10 can be more conveniently operated through the finger groove 14 (in the form of a "U"-shaped groove). Check the plug 16 fixed on the surface of the connecting sleeve 3 to ensure that they are correctly inserted into the limit groove 15 (the plug 16 and the limit groove 15 are both in arc-shaped structures). Note that the curvature of the limit groove 15 should be greater than the curvature of the plug 16 to allow the connecting sleeve 3 to achieve slight rotation. After the plug 16 is inserted, the rubber clamp 18 will be clamped between the plug 16 and the limit groove 15 to produce elastic deformation, thereby playing a damping role. Insert the assembled pin body 1 together with the connecting sleeve 3 into the hole of the component to be connected. Insert the blocking strip 21 on the extension handle 19 into the socket 20, and ensure that the blocking strip 21 is firmly fixed inside the socket 20. The two rubber rings 22 will be clamped between the baffle 21 and the socket 20 to produce elastic deformation, thereby preventing the baffle 21 from falling off. Confirm whether the nut 9 is firmly tightened on the screw 7. Gently try to rotate the connecting sleeve 3 to observe whether it can rotate slightly with the pin body 1 as the central axis, and feel the damping effect provided by the rubber clamp 18 and the rubber sleeve 2. Ensure that the small rotation of the connecting sleeve 3 will not affect the firmness of the screw 7 and the nut 9 after being screwed. Although the embodiments of the present invention have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pin with a damping structure, comprising a pin body (1), characterized in that: A rubber sleeve (2) is sleeved and fixed on the shaft body of the pin shaft body (1), a connecting sleeve (3) is sleeved on the outer side of the rubber sleeve (2), an embedding groove (5) is opened at one end of the pin shaft body (1), a screw rod (7) is fixed on the surface of the connecting sleeve (3), the screw rod (7) passes through the pin shaft body (1), a nut (9) is sleeved and threaded on one end of the screw rod (7) away from the pin shaft body (1), a rubber plug (8) is sleeved and fixed on the rod body of the screw rod (7), the rubber plug (8) is inserted into the embedding groove (5), an extension handle (19) is fixed on the surface of the screw rod (7), and a stopper (21) is inserted on the surface of the extension handle (19).

2. A pin shaft with a damping structure according to claim 1, characterized in that: The rubber sleeve one (2) is a T-shaped round tube, the connecting sleeve (3) is a cylindrical structure, the outer side of the connecting sleeve (3) is provided with a rubber sleeve two (4), and one end of the rubber sleeve two (4) is integrally formed on the end plate of the rubber sleeve one (2).

3. The pin shaft with a damping structure according to claim 1, characterized in that: The embedding groove (5) is a U-shaped circular groove, the installation groove (6) is a T-shaped circular hole, and after the nut (9) is screwed and locked at the end of the screw rod (7), the blocking block (10) is clamped between the connecting sleeve (3) and the embedding groove (5).

4. The pin shaft with a damping structure according to claim 1, characterized in that: A blocking block (10) is inserted into one end of the installation groove (6). The blocking block (10) is a round block. A buckle groove (11) is provided on the surface of the blocking block (10). The buckle groove (11) is a hexagonal groove. The buckle groove (11) is sleeved on the nut (9).

5. The pin shaft with a damping structure according to claim 4, characterized in that: A plurality of clamping strips (12) are integrally formed on the side wall of the blocking block (10), the clamping strips (12) are square strips, the clamping strips (12) are inserted into clamping grooves (13), and the clamping grooves (13) are arranged on the surface of the mounting groove (6).

6. The pin shaft with a damping structure according to claim 4, characterized in that: The surface of the blocking block (10) is provided with a finger groove (14), the finger groove (14) is a "U"-shaped groove, and two finger grooves (14) are provided.

7. The pin shaft with a damping structure according to claim 1, characterized in that: An insert (16) is fixed on the surface of the connecting sleeve (3), the insert (16) is in the form of an arc-shaped plate structure, two inserts (16) are provided, the two inserts (16) are symmetrically distributed about the screw rod (7), the insert (16) is inserted into the limiting groove (15), and the limiting groove (15) is in the form of an arc-shaped groove.

8. The pin shaft with a damping structure according to claim 7, characterized in that: The curvature of the limiting groove (15) is greater than that of the inserting piece (16), and side grooves (17) are provided at both ends of the limiting groove (15). A rubber clamping block (18) is fixed inside the side groove (17), and the rubber clamping block (18) is clamped between the inserting piece (16) and the limiting groove (15) to generate elastic deformation.

9. The pin shaft with a damping structure according to claim 1, characterized in that: The surface of the extension handle (19) is provided with an insertion hole (20), the baffle (21) is inserted into the inside of the insertion hole (20), a rubber ring (22) is sleeved and fixed on the rod body of the extension handle (19), two rubber rings (22) are provided, after the baffle (21) is inserted into the insertion hole (20), the two rubber rings (22) are symmetrically distributed about the extension handle (19), and the rubber ring (22) is clamped between the baffle (21) and the insertion hole (20) to generate elastic deformation.

Images