Glue injection hole structure of steel sleeve steel core component for wheel sound deadening ring

Abstract

The utility model relates to wheel sound attenuation ring assembly technical field especially relates to a kind of glue injection hole structures of steel sleeve steel core component for wheel sound attenuation ring, including steel sleeve body and the glue injection hole body being set in the inside of steel sleeve body, the inside of glue injection hole body is connected with guide ring, the inside of steel sleeve body is set with rhombic hole in upper and lower sides, the inside of rhombic hole is movably connected with ball, the rear side of the top of steel sleeve body is connected with inlet, the top of inlet is connected with top ring, and the bottom of top ring is connected with spring;The utility model is matched with the structure of ball and rhombic hole, and the design of limiting cylinder and sealed inlet is combined, realizes the directional injection and accurate control between glue in steel sleeve and steel core, avoids glue overflow pollution steel core contact surface, and reliable locking is realized by ball, improves assembly stability, overcomes the problem that traditional cementation is not firm, enhances the shock resistance and durability of whole ring structure, applicable to high-precision, high-reliability sound attenuation ring connection scene.

Description

Technical Field

[0001] This utility model relates to the field of wheel muffler ring assembly technology, and in particular to an injection hole structure for a steel sleeve and steel core component for a wheel muffler ring. Background Technology

[0002] In the manufacturing of wheel noise reduction rings, in order to achieve excellent structural stability, durability and shock absorption performance, a composite nested structure of steel core and steel sleeve is usually adopted. This structure can not only provide sufficient mechanical strength, but also effectively reduce noise and vibration during vehicle operation by means of its internal damping characteristics. In order to avoid relative displacement or loosening between the steel core and steel sleeve, traditional methods often use welding, riveting or mechanical interlocking for assembly. However, these methods have defects such as complex manufacturing, local stress concentration, easy damage to material surface or weakening of sound insulation performance.

[0003] Currently, the steel sleeve and steel core of wheel muffler rings are mostly fixed and connected by glue injection. However, due to uncontrollable factors in the curing process of the glue, such as uneven glue injection, dispersed flow path, and glue adhering to the surface of the steel core, the steel core and steel sleeve are easily not tightly bonded, resulting in loosening, displacement or structural deformation. This affects the concentricity and muffler performance of the entire ring, and the structural reliability and service life are limited.

[0004] Therefore, in the case of existing wheel muffler rings where the steel sleeve and steel core are connected by glue injection, uneven glue distribution or adhesion to the surface of the steel core often leads to loose assembly, easy loosening, eccentricity or deformation, affecting concentricity and muffler effect, and resulting in poor overall structural stability and service life, there is an urgent need to design a new glue injection hole structure for the steel sleeve and steel core components of wheel muffler rings. Utility Model Content

[0005] In order to overcome the problems of existing wheel muffler rings, when the steel sleeve and steel core are connected by glue injection, the uneven distribution of glue or the glue adhering to the surface of the steel core often leads to poor assembly, loosening, eccentricity or deformation, which affects concentricity and muffler effect, and the overall structural stability and service life.

[0006] The technical solution of this utility model is as follows: a glue injection hole structure for a steel sleeve and steel core component for a wheel muffler ring, comprising a steel sleeve body and a glue injection hole body opened inside the steel sleeve body. A guide ring is connected inside the glue injection hole body. Diamond-shaped holes are opened on the upper and lower sides inside the steel sleeve body. Ball bearings are movably connected inside the diamond-shaped holes. An inlet is connected to the rear top of the steel sleeve body. A top ring is connected to the top of the inlet. A spring is connected to the bottom of the top ring. A limit cylinder is connected to the end of the spring away from the top ring. The limit cylinder is movably connected to the inlet. A rubber ring is connected to the top of the limit cylinder. Glue outlets are opened on the left and right ends of the limit cylinder. A threaded cap is threadedly connected inside the top ring. After the threaded cap is separated from the top ring, an external pipe is inserted into the inlet and the rubber ring is pressed down, causing the rubber ring to drive the limit cylinder to stretch the spring, so that the limit cylinder touches the glue injection hole body. Glue enters the limit cylinder and overflows from the glue outlet into the glue injection hole body. The glue pushes the ball bearings through the diamond-shaped holes.

[0007] Preferably, by setting a diamond-shaped hole and a ball bearing structure, flow control and precise positioning can be achieved during the glue injection process. After the threaded cap and the top ring are separated, the operator only needs to insert the external glue injection pipe into the inlet and press down the rubber ring. Under compression, the rubber ring drives the limiting cylinder to stretch the spring, pushing the limiting cylinder down until it touches the glue injection hole body. At this time, the glue smoothly enters the limiting cylinder and flows into the glue injection hole body from the glue outlet. As the glue continues to be injected, the internal pressure pushes the ball bearing up along the diamond-shaped hole until the glue is full. Then, the glue injection pipe is pulled out, the spring resets and drives the limiting cylinder to move up, and the inlet automatically closes the glue outlet to prevent glue backflow or overflow. The threaded cap and the top ring are then tightened. Under the action of the glue, the ball bearing presses the steel core in and locks it in place, achieving precise and stable assembly of the steel core while preventing glue overflow.

[0008] Preferably, a fixing post is connected to the rear side of the inner side of the steel sleeve body, and a positioning hole is provided at the front end of the fixing post.

[0009] Preferably, a steel core body is movably connected to the inner front side of the steel sleeve body, and a slot is provided at the outer end of the steel core body.

[0010] Preferably, the slot is movably connected to the ball bearing, and the rear end of the steel core body is connected to a locking post, which matches the slot.

[0011] Preferably, a limiting ring is connected to the front end of the steel core body, and the limiting ring matches the steel sleeve body.

[0012] Preferably, the front end of the limiting ring is connected to a connector, and the rear end of the steel sleeve body is connected to the same connector.

[0013] Preferably, the steel core body is inserted into the fixing post so that the fixing post matches the positioning hole, the slot matches the ball, and then the two connectors are sleeved on both ends of the silencer ring.

[0014] The beneficial effects of this utility model are: 1. By incorporating ball bearings and diamond-shaped holes in the glue injection hole structure, combined with the design of a limiting cylinder and a sealing inlet, the directional limitation of the glue injection area and the controlled flow of the glue are achieved. This ensures that the glue only fills the target gap between the steel sleeve and the steel core, preventing accidental overflow to the critical contact surface of the steel core. At the same time, the ball bearings are used as structural locking elements to enhance assembly stability, achieving precise locking without relying on the strength of the glue. This structure significantly improves the fixing reliability between the steel sleeve and the steel core, overcomes the problem of insufficient fixing force in traditional adhesive bonding methods, and improves the product's shock resistance, durability, and consistency. It is suitable for wheel muffler ring structures with high requirements for assembly accuracy and durability. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional exploded view of the glue injection hole structure of a steel sleeve and steel core component for a wheel noise reduction ring according to this utility model. Figure 2 The diagram shown is a three-dimensional exploded side section of the glue injection hole structure of a steel sleeve and steel core component for a wheel noise reduction ring according to this utility model. Figure 3 The diagram shown is a three-dimensional structural schematic of the glue injection hole structure of a steel sleeve and steel core component for a wheel noise reduction ring according to this utility model. Figure 4 The diagram shown is a three-dimensional side sectional view of the glue injection hole structure of a steel sleeve and steel core component for a wheel noise reduction ring according to this utility model. Figure 5 The diagram shown is a side sectional view of the glue injection hole structure of a steel sleeve and steel core component for a wheel noise reduction ring according to this utility model. Figure 6 This invention discloses the glue injection hole structure of a steel sleeve and steel core component for a wheel noise reduction ring. Figure 2 Enlarged structural diagram of point A in the middle.

[0016] Explanation of reference numerals in the attached drawings: 1. Steel sleeve body; 21. Injection hole body; 22. Guide ring; 23. Diamond-shaped hole; 24. Ball bearing; 25. Inlet; 26. Top ring; 27. Spring; 28. Limiting sleeve; 29. ​​Rubber ring; 210. Glue outlet; 211. Threaded cap; 31. Fixing post; 32. Positioning hole; 33. Steel core body; 34. Slot; 35. Locking post; 36. Limiting ring; 37. Connector. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Please see Figures 1-6This utility model provides an embodiment: a glue injection hole structure for a steel sleeve and steel core component of a wheel muffler ring, including a steel sleeve body 1 and a glue injection hole body 21 opened inside the steel sleeve body 1. A guide ring 22 is connected inside the glue injection hole body 21. Diamond-shaped holes 23 are opened on the upper and lower sides inside the steel sleeve body 1. Ball bearings 24 are movably connected inside the diamond-shaped holes 23. An inlet 25 is connected to the rear top of the steel sleeve body 1. A top ring 26 is connected to the top of the inlet 25. A spring 27 is connected to the bottom of the top ring 26. The end of the tube 7 furthest from the top ring 26 is connected to a limiting cylinder 28. The limiting cylinder 28 is movably connected to the inlet 25. A rubber ring 29 is connected to the top of the limiting cylinder 28. Glue outlets 210 are opened at both ends of the limiting cylinder 28. A threaded cap 211 is threadedly connected to the inside of the top ring 26. After the threaded cap 211 is separated from the top ring 26, the external tube is inserted into the inlet 25 and the rubber ring 29 is pressed down forcefully. This causes the rubber ring 29 to pull the limiting cylinder 28 to stretch the spring 27, so that the limiting cylinder 28 touches the glue injection hole body 21, and glue enters the limiting cylinder. The glue overflows from the glue outlet 210 into the glue injection hole body 21. The glue passes through the diamond-shaped hole 23 and pushes the ball bearing 24. By setting the structure of the diamond-shaped hole 23 and the ball bearing 24, flow control and precise positioning can be achieved during the glue injection process. After the threaded cap 211 separates from the top ring 26, the operator only needs to insert the external glue injection pipe into the inlet 25 and press down the rubber ring 29. Under compression, the rubber ring 29 drives the limiting cylinder 28 to stretch the spring 27, pushing the limiting cylinder 28 down until it touches the glue injection hole body 21. At this time, the glue flows smoothly. The glue enters the limiting cylinder 28 and flows into the glue injection hole body 21 through the glue outlet 210. As the glue is continuously injected, the internal pressure pushes the ball 24 to move upward along the diamond hole 23 until the glue is full. Then, the glue injection tube is pulled out, the spring 27 resets and drives the limiting cylinder 28 to move upward, and the inlet 25 automatically closes the glue outlet 210 to prevent the glue from flowing back or overflowing. The threaded cap 211 and the top ring 26 are further tightened. Under the action of the glue, the ball 24 presses the steel core in and locks it in place, so that the glue does not overflow while the steel core is precisely and stably assembled.

[0019] Please see Figures 1-5In this embodiment, a fixing post 31 is connected to the rear inner side of the steel sleeve body 1. A positioning hole 32 is provided at the front end of the fixing post 31. A steel core body 33 is movably connected to the front inner side of the steel sleeve body 1. A slot 34 is provided at the outer end of the steel core body 33. The slot 34 is movably connected to the ball 24. A locking post 35 is connected to the rear end of the steel core body 33. The locking post 35 and the slot 34 match each other. The axial alignment accuracy during steel core insertion is ensured by the fixing post 31 and the positioning hole 32, avoiding eccentricity or insertion deviation and improving the reliability of initial positioning. The combination of the slot 34, the ball 24 and the locking post 35 constitutes a double limiting structure, which achieves a firm assembly without relying on the curing strength of the glue. Compared to traditional structures, which mostly use direct glue injection to maintain the fit between the steel core and the steel sleeve, this structure significantly improves connection stability and reduces dependence on glue performance, making it particularly suitable for applications requiring high-speed rotation or high-vibration.

[0020] Please see Figures 2-5 In this embodiment, the front end of the steel core body 33 is connected to a limiting ring 36, which matches the steel sleeve body 1. The front end of the limiting ring 36 is connected to a connector 37, and the rear end of the steel sleeve body 1 is connected to the same connector 37. The steel core body 33 is inserted into the fixing post 31 so that the fixing post 31 matches the positioning hole 32, and the slot 34 matches the ball 24. Then, the two connectors 37 are sleeved with the two ends of the muffler ring. The limiting ring 36 and the connectors 37 not only control the insertion depth of the steel core to prevent excessive insertion that could cause structural interference or glue overflow, but also ensure that the steel core is precisely connected to the external structure (such as the muffler ring), improving the concentricity of the entire ring and the overall mechanical performance. In contrast, traditional glue injection structures generally lack depth control and mechanical connection design, which can easily cause improper insertion of the steel core due to gravity or manual error before the glue cures, affecting the muffler effect or even causing structural deformation. This structure, through a precise fitting mechanism and a controllable glue injection area, enables the coexistence of the two functions of "sound insulation" and "stable assembly," avoiding the risk of glue adhering to the steel core surface, extending service life, and improving product consistency and production efficiency.

[0021] During operation, the steel core body 33 is first inserted into the steel sleeve body 1, and the locking pin 35 and the locking groove 34 are engaged with each other. Then, the threaded cap 211 is separated from the top ring 26. Next, the external glue injection tube is inserted into the inlet 25, and the rubber ring 29 is pressed down. Under the pressure, the rubber ring 29 drives the limiting cylinder 28 to move downward against the tension of the spring 27 until the bottom end of the limiting cylinder 28 contacts the glue injection hole body 21. At this time, the glue enters the interior of the limiting cylinder 28 through the glue injection tube and flows into the glue injection hole body 21 through the glue outlets 210 on both sides of the limiting cylinder 28. It continues to be pushed inward, and the glue is diverted to the steel sleeve body 21 after passing through the guide ring 22. Inside the diamond-shaped hole 23 of the sleeve body 1, the ball 24 is pushed upward. When the glue fills to the set amount, the glue injection tube is pulled out, the spring 27 returns to its original state and drives the limiting cylinder 28 to rebound. The limiting cylinder 28 cooperates with the glue injection tube to block the glue outlet 210, effectively preventing excess glue from flowing back or overflowing. Then, the threaded cap 211 and the top ring 26 are tightened to close the inlet 25, completing the glue injection process. At this time, under the action of the glue, the ball 24 moves into the slot 34 under the pressure of the glue, realizing the mechanical limiting and glue-assisted positioning of the steel core body 33, and finally completing the stable assembly and sealing connection of the steel core and the steel sleeve.

[0022] Through the above steps, by setting ball bearings 24 and diamond-shaped holes 23 in the glue injection hole structure, and combining the design of limiting cylinder 28 and sealing inlet 25, the directional injection of glue between the steel sleeve and the steel core is realized, avoiding flow into the critical contact surface of the steel core. The ball bearings 24 also play a limiting and locking role, enabling the steel core to achieve stable assembly without relying on the strength of the glue. This structure improves the connection reliability, overcomes the defects of insufficient fixing force in traditional glue injection methods, and enhances the overall shock resistance, durability and consistency. It is suitable for wheel muffler ring structures with high precision and high strength requirements, so as to solve the problem that when the existing wheel muffler rings are connected to the steel sleeve and the steel core by glue injection, the uneven distribution of glue or its adhesion to the surface of the steel core often leads to poor assembly, loosening, eccentricity or deformation, affecting concentricity and muffler effect, and poor overall structural stability and service life.

Claims

1. A glue injection hole structure for a steel sleeve and steel core component for a wheel noise reduction ring, comprising a steel sleeve body (1); characterized in that: It also includes an injection hole body (21) inside the steel sleeve body (1), a guide ring (22) connected inside the injection hole body (21), diamond-shaped holes (23) on the upper and lower sides inside the steel sleeve body (1), ball bearings (24) movably connected inside the diamond-shaped holes (23), an inlet (25) connected to the top rear side of the steel sleeve body (1), a top ring (26) connected to the top of the inlet (25), a spring (27) connected to the bottom of the top ring (26), a limit sleeve (28) connected to the end of the spring (27) away from the top ring (26), the limit sleeve (28) movably connected to the inlet (25), and the limit sleeve (28) movably connected to the inlet (25). 8) is connected to a rubber ring (29) at the top. The left and right ends of the limiting cylinder (28) are provided with glue outlets (210). The internal thread of the top ring (26) is connected to a threaded cap (211). After the threaded cap (211) is separated from the top ring (26), the external pipe is inserted into the inlet (25) and the rubber ring (29) is pressed down. The rubber ring (29) drives the limiting cylinder (28) to stretch the spring (27), so that the limiting cylinder (28) touches the glue injection hole body (21). The glue enters the limiting cylinder (28) and overflows from the glue outlet (210) into the glue injection hole body (21). The glue pushes the ball (24) through the diamond hole (23).

2. The glue injection hole structure of the steel sleeve and steel core component for a wheel noise reduction ring according to claim 1, characterized in that: A fixing post (31) is connected to the rear side of the inner side of the steel sleeve body (1), and a positioning hole (32) is provided at the front end of the fixing post (31).

3. The glue injection hole structure of the steel sleeve and steel core component for a wheel noise reduction ring according to claim 2, characterized in that: The front side of the inner side of the steel sleeve body (1) is movably connected to the steel core body (33), and the outer end of the steel core body (33) is provided with a slot (34).

4. The glue injection hole structure of the steel sleeve and steel core component for a wheel noise reduction ring according to claim 3, characterized in that: The slot (34) is movably connected to the ball (24), and the rear end of the steel core body (33) is connected to the locking post (35), which matches the slot (34).

5. The glue injection hole structure of the steel sleeve and steel core component for a wheel noise reduction ring according to claim 4, characterized in that: The front end of the steel core body (33) is connected to a limiting ring (36), and the limiting ring (36) matches the steel sleeve body (1).

6. The glue injection hole structure of the steel sleeve and steel core component for a wheel noise reduction ring according to claim 5, characterized in that: The front end of the limiting ring (36) is connected to a connector (37), and the rear end of the steel sleeve body (1) is connected to the same connector (37).

7. The glue injection hole structure of the steel sleeve and steel core component for a wheel noise reduction ring according to claim 6, characterized in that: The steel core body (33) is inserted into the fixing post (31) so that the fixing post (31) matches the positioning hole (32), so that the slot (34) matches the ball (24), and then the two connectors (37) are sleeved with the two ends of the silencer ring.

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