Unilateral shaft output locking structure

Abstract

The utility model relates to a damping structure, in particular to a unilateral shaft output locking structure which comprises a fixing ring, an input end shaft and an output end shaft are arranged at the two ends of the fixing ring respectively, the fixing ring comprises a ring body, and two sets of roller pin assemblies are symmetrically arranged on the inner side of the ring body. The two groups of roller pin assemblies are fixed in the ring body, each group of roller pin assemblies comprises two roller pin assemblies, the two roller pin assemblies are connected through a spring, the input end shaft comprises an input shaft body, two positioning blocks are fixed on the input shaft body, the output end shaft comprises an output shaft body and an adaptive block fixed on the output shaft body, and the adaptive block is fixed on the output shaft body. And the positioning block and the adaptive block are fixed on the inner side of the ring body. According to the unilateral shaft output locking structure, the torque value provided by the input end can be effectively reduced, the overall strength of the structure is higher, the situation that the output end shaft actively rotates is avoided, and the vibration and impact resistance of the structure is better.

Description

Technical Field

[0001] This utility model relates to a damping structure, specifically a single-sided shaft output locking structure. Background Technology

[0002] Commonly used damping structures include plastic dampers and metal dampers. Currently, damping structures are widely used in automotive screens. During vehicle operation, damping structures are needed to reduce the impact force caused by vehicle shaking when the screen is open or already open.

[0003] The existing damping structure has the following drawbacks: First, its damping function is achieved by the interference fit of the shaft hole, which is prone to wear during use. Experiments have shown that after 15,000 to 30,000 uses, the damping value will decrease by 20% to 30% due to shaft hole wear. In addition, because the existing structure has a large damping value, a large torque value needs to be provided at the input end to enable the output end to achieve the flipping function, which will directly affect the strength and life of other structural components. Utility Model Content

[0004] The purpose of this invention is to provide a single-sided shaft output locking structure that can effectively reduce the torque value provided by the input end, thereby increasing the overall strength of the structure and preventing the output shaft from actively rotating, thus improving the structure's vibration and shock resistance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a single-sided shaft output locking structure, comprising a fixing ring, an input shaft and an output shaft respectively provided at both ends of the fixing ring, and the fixing ring comprising a ring body, with two sets of needle roller assemblies symmetrically arranged on the inner side of the ring body, both sets of needle roller assemblies being fixed in the ring body, each set of needle roller assemblies having two members, and the two needle roller assemblies being connected by a spring, the input shaft comprising an input shaft body, with two positioning blocks fixed on the input shaft body, the output shaft comprising an output shaft body and an adapter block fixed on the output shaft body, the positioning blocks and the adapter block being fixed on the inner side of the ring body.

[0006] Preferably, the needle roller assembly includes a needle roller tailstock and a needle roller head fixed on the needle roller tailstock, with a positioning opening formed between two adjacent needle roller heads.

[0007] Preferably, the two positioning blocks are symmetrical about the input shaft, and both positioning blocks are C-shaped.

[0008] Preferably, the adapter block includes two first protrusions and two second protrusions, and the adapter block has a cross-shaped design.

[0009] Preferably, it also includes a first bearing and a second bearing, which are distributed at both ends of the fixed ring. The first bearing is mounted on the input shaft and the second bearing is mounted on the output shaft.

[0010] Preferably, it also includes a first outer shell, which includes a housing, with two mounting grooves symmetrically arranged on the inner side of the housing, and protruding strips at both ends of the ring body, with the two protruding strips respectively installed in the two mounting grooves.

[0011] Preferably, it also includes a second housing, which is annular in design and fixed to the outside of the output shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses a single-sided shaft output locking structure to replace the damping structure. When the input shaft rotates actively, the angle of the two sets of needle rollers can slide synchronously with the inner wall of the fixed ring, and only increase the frictional resistance by a small amount. Therefore, it can effectively reduce the torque value provided by the input end, making the overall strength of the structure higher and the service life longer.

[0014] 2. In this utility model, after replacing the shaft hole structure of the damping structure with the input shaft and output shaft, when the output shaft tends to rotate, the needle roller structure and the fixing ring form a jam, so that neither the output shaft nor the input shaft can rotate. Therefore, the vibration and impact resistance of this structure is better and the impact on other structural components is reduced.

[0015] 3. It reduces wear on other components caused by high torque, extends the service life of the structure, and improves noise during rotation. Attached Figure Description

[0016] Figure 1 This is one of the exploded views of this utility model;

[0017] Figure 2 This is a schematic diagram of the fixing ring of this utility model;

[0018] Figure 3 This is the second exploded view of this utility model;

[0019] Figure 4 This is a schematic diagram of the combination of the fixing ring and the output shaft of this utility model;

[0020] Figure 5 This is a schematic diagram of an embodiment of the present utility model;

[0021] Figure 6 This utility model Figure 5 Sectional view of AA.

[0022] The reference numerals and names in the figure are as follows: 1. Fixing ring; 11. Ring body; 12. Needle roller assembly; 121. Needle roller tailstock; 122. Needle roller head; 123. Positioning port; 13. Spring; 14. Protruding strip; 2. Input end shaft; 21. Input shaft body; 22. Positioning block; 3. Output end shaft; 31. Output shaft body; 32. Adapter block; 321. First protrusion; 322. Second protrusion; 4. First bearing; 5. Second bearing; 6. First outer shell; 61. Housing; 62. Mounting groove; 7. Second outer shell. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," 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 the embodiments of this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. 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 indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 embodiment of the invention according to the specific circumstances.

[0026] Please see Figure 1The present invention provides an embodiment of a single-sided shaft output locking structure, including a fixing ring 1, an input shaft 2 and an output shaft 3 respectively provided at both ends of the fixing ring 1, and further including a first bearing 4, a second bearing 5, a first housing 6 and a second housing 7.

[0027] Please see Figure 2 The fixing ring 1 includes a ring body 11. Two sets of needle roller assemblies 12 are symmetrically arranged on the inner side of the ring body 11. Both sets of needle roller assemblies 12 are fixed inside the ring body 11. Each set of needle roller assemblies 12 has two needle roller assemblies, and the two needle roller assemblies 12 are connected by a spring 13. The needle roller assembly 12 includes a needle roller tail seat 121 and a needle roller head 122 fixed on the needle roller tail seat 121. A positioning port 123 is formed between two adjacent needle roller heads 122. There are two positioning ports 123 in total.

[0028] Please see Figure 3 Both ends of the ring 11 are provided with protruding strips 14. The input shaft 2 includes an input shaft body 21. Two positioning blocks 22 are fixed on the input shaft body 21. The two positioning blocks 22 are symmetrical to the input shaft body 21 and both positioning blocks 22 are C-shaped. The output shaft 3 includes an output shaft body 31 and an adapter block 32 fixed on the output shaft body 31. The positioning block 22 and the adapter block 32 are fixed on the inner side of the ring 11 and are connected on the inner side of the ring 11 by a needle roller assembly 12. The first outer shell 6 includes a shell 61. Two mounting grooves 62 are symmetrically provided on the inner side of the shell 61. The two protruding strips 14 are respectively installed in the two mounting grooves 62, so that the first outer shell 6 can be fixed on the outer side of the input shaft 2. The first bearing 4 and the second bearing 5 are distributed at both ends of the fixing ring 1. The first bearing 4 is installed on the input shaft body 21 and the second bearing 5 is installed on the output shaft body 31.

[0029] Please see Figure 4 The adapter block 32 includes two first protrusions 321 and two second protrusions 322. The space within the two positioning ports 123 is used to accommodate the two second protrusions 322, so that the second protrusions 322 can be confined within the ring body 11. When the input end shaft 2 rotates actively, the angles of the two sets of needle roller assemblies 12 can slide synchronously with the inner wall of the ring body 11, increasing only a small frictional resistance, effectively reducing the torque value provided by the input end, and making the overall strength of the structure higher.

[0030] Please see Figure 5 The second housing 7 has a ring-shaped design and is fixed to the outside of the output shaft 31.

[0031] Please see Figure 6The adapter block 32 is designed in a cross shape. Since the positioning block 22 is C-shaped, the two first protrusions 321 can extend into the inner side of the two positioning blocks 22 and abut against the two positioning blocks 22. When the output shaft 3 has a tendency to rotate, the two sets of needle roller assemblies 12 and the ring body 11 form a jam, so that the output shaft 3 and the input shaft 2 cannot rotate, thereby obtaining better vibration and shock resistance performance.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A single-sided shaft output locking structure, comprising a retaining ring (1), characterized in that: The fixed ring (1) has an input shaft (2) and an output shaft (3) at its two ends respectively. The fixed ring (1) includes a ring body (11). Two sets of needle roller assemblies (12) are symmetrically arranged on the inner side of the ring body (11). Both sets of needle roller assemblies (12) are fixed inside the ring body (11), and each set of needle roller assemblies (12) has two. The two needle roller assemblies (12) are connected by a spring (13). The input shaft (2) includes an input shaft body (21). Two positioning blocks (22) are fixed on the input shaft body (21). The output shaft (3) includes an output shaft body (31) and an adapter block (32) fixed on the output shaft body (31). The positioning block (22) and the adapter block (32) are both fixed on the inner side of the ring body (11).

2. The single-sided shaft output locking structure according to claim 1, characterized in that: The needle roller assembly (12) includes a needle roller tailstock (121) and a needle roller head (122) fixed on the needle roller tailstock (121), with a positioning opening (123) formed between two adjacent needle roller heads (122).

3. The single-sided shaft output locking structure according to claim 1, characterized in that: The two positioning blocks (22) are symmetrical about the input shaft (21), and both positioning blocks (22) are C-shaped.

4. The single-sided shaft output locking structure according to claim 1, characterized in that: The adapter block (32) includes two first protrusions (321) and two second protrusions (322), and the adapter block (32) is designed in a cross shape.

5. The single-sided shaft output locking structure according to claim 1, characterized in that: It also includes a first bearing (4) and a second bearing (5), which are distributed at both ends of the fixed ring (1), with the first bearing (4) mounted on the input shaft (21) and the second bearing (5) mounted on the output shaft (31).

6. The single-sided shaft output locking structure according to claim 1, characterized in that: It also includes a first outer shell (6), which includes a housing (61). The inner side of the housing (61) is symmetrically provided with two mounting grooves (62). Both ends of the ring (11) are provided with protruding strips (14), and the two protruding strips (14) are respectively installed in the two mounting grooves (62).

7. The single-sided shaft output locking structure according to claim 1, characterized in that: It also includes a second housing (7), which is annular in design and is fixed to the outside of the output shaft (31).

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