Tooth rod capable of eliminating tooth clearance
By setting up a closed cavity in the tooth rod structure and using an oil pressure system, the tight connection between the nut and the tooth rod is achieved, the thread clearance problem is solved, the connection stability is improved and thread damage is prevented.
Patent Information
- Application Number
- CN202422350665.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-26
AI Technical Summary
In the prior art, the thread gap between the nut and the rod is easily displaced due to vibration during stamping, resulting in the inability to effectively eliminate the gap between the teeth.
A tooth rod structure is designed. By setting a closed cavity between the adjustment nut and the nut seat, and injecting high-pressure oil or gas with the oil pressure system, the adjustment nut is realized in axial closed sliding relative to the nut seat, clamping the nut and the tooth rod to eliminate thread gaps.
Effectively eliminates the thread gap between the tooth rod and the adjustment nut, ensuring the tight connection between the tooth rod and the adjustment nut, avoiding thread damage, and improving the stability of the connection.
Smart Images
Figure CN223075963U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of tooth rod manufacturing, and specifically relates to a tooth rod that can eliminate tooth gaps. Background Art
[0002] With the rise of the new energy market, especially in the new energy industry, more and more customers have higher requirements for product process accuracy, and the accuracy of battery / bipolar plate parts products is extremely high. Although the thread gap between the nut and the tooth rod is within the error range, during stamping, the die height will shift due to vibration. Therefore, it is necessary to design a component that can eliminate the gap between the threads of the nut and the tooth rod. Summary of the Utility Model
[0003] The main purpose of this application is to address the shortcomings of the existing technology. By setting a sealed cavity between the adjusting nut and the nut seat, a tooth rod that can eliminate tooth gaps is designed. It can use a hydraulic system to inject high-pressure oil into the sealed cavity, thereby achieving a clamping effect between the adjusting nut and the tooth rod, eliminating the thread gap between the tooth rod and the adjusting nut, and solving the problem of how to eliminate the tooth gap on the tooth rod (the thread gap between the tooth rod and the adjusting nut).
[0004] To achieve the above purpose, the technical solution adopted in this application is:
[0005] A tooth rod that can eliminate tooth gaps, including a rod body, a main nut, an adjusting nut, and a nut seat. Threads that cooperate with the main nut and the adjusting nut are provided on the outer circumferential surface between the two ends of the rod body. The main nut, the adjusting nut, and the nut seat are concentric. One end face of the main nut is fixedly connected to one end face of the nut seat. A sealed chamber is formed between the outer circumferential surface of the adjusting nut and the inner circumferential surface of the nut seat. Oil or gas can be injected into the sealed chamber to generate pressure to achieve axially sealed sliding of the adjusting nut relative to the nut seat. A through hole communicating with the sealed chamber is provided on the nut seat. A guide pin is provided on the end face of the adjusting nut facing the main nut, and a blind hole that cooperates with the guide pin is provided on the end face of the main nut facing the adjusting nut.
[0006] Preferably, a first convex ring is provided on the inner circumferential surface of the nut seat, a second convex ring is provided on the outer circumferential surface of the adjusting nut, the second convex ring is located above the first convex ring, the main nut is located above the second convex ring, and a preset gap is provided between the upper part of the adjusting nut and the lower end face of the main nut.
[0007] Preferably, the sealed chamber is formed between the upper surface of the first convex ring, the outer circumferential surface of the adjusting nut, the inner circumferential surface of the nut seat, and the lower surface of the second convex ring.
[0008] Preferably, a second sealing ring is coaxially arranged between the outer circumferential surface of the second convex ring and the inner circumferential surface of the nut seat, and a first sealing ring is coaxially arranged between the inner circumferential surface of the first convex ring and the outer circumferential surface of the adjusting nut.
[0009] Preferably, a first annular groove for installing the first sealing ring is coaxially arranged on the inner circumferential surface of the first convex ring, and a second annular groove for installing the second sealing ring is coaxially arranged on the outer circumferential surface of the second convex ring.
[0010] Preferably, a plurality of first screw holes are axially arranged on the end surface of the main nut away from the sealed cavity, and the nut seat is provided with second screw holes matching with the first screw holes, and bolts penetrate through the first screw holes and the second screw holes to lock the main nut and the nut seat together.
[0011] Preferably, the through hole is radially arranged on the nut seat.
[0012] Compared with the prior art, the present application has the following beneficial effects:
[0013] 1. The present application adopts the method of arranging a sealed cavity between the adjusting nut and the nut seat, and designs a tooth rod capable of eliminating the tooth gap. The high-pressure oil can be injected into the sealed cavity by using an oil pressure system, so as to achieve the clamping effect between the adjusting nut and the tooth rod, eliminate the thread gap between the tooth rod and the adjusting nut, and solve the problem of how to eliminate the tooth gap on the tooth rod (the thread gap between the tooth rod and the adjusting nut).
[0014] 2. After the first convex ring and the second convex ring are arranged in the present application, a sealed cavity is formed between the upper surface of the first convex ring and the lower surface of the second convex ring. At the same time, since the first convex ring is arranged on the nut seat, and the second convex ring is arranged on the adjusting nut, and the second convex ring is located between the first convex ring and the main nut, during the process of injecting oil into the sealed cavity, the second convex ring can only move between the first convex ring and the main nut all the time, playing a certain limiting role. It avoids damage to the threads on the rod body or the threads on the adjusting nut due to excessive pressure when injecting oil into the sealed cavity.
[0015] 3. By arranging the first annular groove and the second annular groove in the present application, it is convenient to install the first sealing ring and the second sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is the external structure schematic diagram of the present application;
[0017] Figure 2 is the sectional view of the present application;
[0018] Figure 3 is Figure 2 the enlarged view at A in
[0019] Figure 4 This is the exploded view of the present application.
[0020] Among them, 1 is the rod body; 2 is the main nut; 3 is the adjusting nut; 4 is the nut seat; 5 is the through hole; 6 is the first convex ring; 7 is the second convex ring; 8 is the first sealing ring; 9 is the second sealing ring; 10 is the first annular groove; 11 is the second annular groove; 12 is the first screw hole; 13 is the second screw hole; 14 is the stud; 15 is the guide pin; 16 is the blind hole. Detailed implementation mode
[0021] As Figures 1-4 shown, a tooth rod capable of eliminating tooth gap includes a rod body 1, a main nut 2, an adjusting nut 3, and a nut seat 4. Threads for cooperating with the main nut 2 and the adjusting nut 3 are provided on the outer circumferential surface between the two ends of the rod body 1. The main nut 2, the adjusting nut 3, and the nut seat 4 are concentric. One end face of the main nut 2 is fixedly connected to one end face of the nut seat 4. A sealed chamber is formed between the outer circumferential surface of the adjusting nut 3 and the inner circumferential surface of the nut seat 4. Oil or gas can be injected into the sealed chamber to generate pressure to realize the axially sealed sliding of the adjusting nut 3 relative to the nut seat 4. The nut seat 4 is provided with a through hole 5 communicating with the sealed chamber. A guide pin 15 is provided on the end face of the adjusting nut 3 facing the main nut 2, and a blind hole 16 cooperating with the guide pin 15 is provided on the end face of the main nut 2 facing the adjusting nut 3.
[0022] In this embodiment, when the die height of the slider (not shown in the figure) installed on the rod body 1 needs to be adjusted, the oil in the sealed chamber leaks out, so that the adjusting nut 3 is loosened, facilitating the rotation of the tooth rod 1. After the die height adjustment is completed, high-pressure oil is injected into the sealed chamber, and the adjusting nut 3 will move axially on the rod body 1 to achieve clamping, so that the adjusting nut 3 and the main nut 2 are clamped to meet the requirement of zero gap of the tooth rod. The guide pin 15 and the blind hole 16 are provided to prevent the relative rotation between the main nut 2 and the adjusting nut 3.
[0023] As a preferred embodiment, a first convex ring 6 is provided on the inner circumferential surface of the nut seat 4, and a second convex ring 7 is provided on the outer circumferential surface of the adjusting nut 3. The second convex ring 7 is located above the first convex ring 6, the main nut 2 is located above the second convex ring 7, and a preset gap is provided between the upper part of the adjusting nut 3 and the lower end surface of the main nut 2. The through hole 5 is provided for injecting high-pressure oil or high-pressure gas into the sealed chamber. After the first convex ring 6 and the second convex ring 7 are provided, a sealed chamber is formed between the upper surface of the first convex ring 6 and the lower surface of the second convex ring 7. At the same time, since the first convex ring 6 is provided on the nut seat 4, the second convex ring 7 is provided on the adjusting nut 3, and the second convex ring 7 is located between the first convex ring 6 and the main nut 2, during the process of injecting oil into the sealed chamber, the second convex ring 7 can only move between the first convex ring 6 and the main nut 2 all the time, playing a certain limiting role. This can prevent the pressure of injecting oil into the sealed chamber from being too high and damaging the threads on the rod body 1 or the adjusting nut 3.
[0024] Specifically, a sealed chamber is formed among the upper surface of the first convex ring 6, the outer circumferential surface of the adjusting nut 3, the inner circumferential surface of the nut seat 4, and the lower surface of the second convex ring 7.
[0025] As a preferred embodiment, a second sealing ring 9 is coaxially provided between the outer circumferential surface of the second convex ring 7 and the inner circumferential surface of the nut seat 4, and a first sealing ring 8 is coaxially provided between the inner circumferential surface of the first convex ring 6 and the outer circumferential surface of the adjusting nut 3. After such a setting, the first sealing ring 8 and the second sealing ring 9 can ensure the tightness of the sealed chamber and prevent oil leakage. At the same time, the first sealing ring 8 and the second sealing ring 9 will not block the axial movement of the adjusting nut 3 on the rod body 1 while ensuring airtightness.
[0026] As a preferred embodiment, a first annular groove 10 for installing the first sealing ring 8 is coaxially provided on the inner circumferential surface of the first convex ring 6, and a second annular groove 11 for installing the second sealing ring 9 is coaxially provided on the outer circumferential surface of the second convex ring 7. By providing the first annular groove 10 and the second annular groove 11, it is convenient to install the first sealing ring 8 and the second sealing ring 9.
[0027] As a preferred embodiment, a plurality of first screw holes 12 are axially provided on the end surface of the main nut 2 away from the sealed chamber, and a second screw hole 13 matching with the first screw holes 12 is provided on the nut seat 4. A bolt 14 passes through the first screw holes 12 and the second screw holes 13 to lock the main nut 2 and the nut seat 14 together. By providing the first screw holes 12 and the second screw holes 13, it is convenient to fix and lock the main nut 2 and the nut seat 4 together by the bolt 14.
[0028] As a preferred embodiment, the through hole 5 is radially provided on the nut seat 4. Such an arrangement facilitates the connection of the through hole 5 to an external oil pipe, so that the oil outlet of an external oil source (oil pump) can communicate with the interior of the sealed chamber.
Claims
1. A dental rod capable of eliminating dental gaps, characterized in that, It includes a rod body (1), a main nut (2), an adjusting nut (3), and a nut seat (4). On the outer circumferential surface between the two ends of the rod body (1), there is a thread that cooperates with the main nut (2) and the adjusting nut (3). The main nut (2), the adjusting nut (3), and the nut seat (4) are concentric. One end face of the main nut (2) is fixedly connected to one end face of the nut seat (4). A sealed chamber is formed between the outer circumferential surface of the adjusting nut (3) and the inner circumferential surface of the nut seat (4). Oil or gas can be injected into the sealed chamber to generate pressure to achieve axially sealed sliding of the adjusting nut (3) relative to the nut seat (4). The nut seat (4) is provided with a through hole (5) that communicates with the sealed chamber. On the end face of the adjusting nut (3) facing the main nut (2), there is a guide pin (15). On the end face of the main nut (2) facing the adjusting nut (3), there is a blind hole (16) that cooperates with the guide pin (15).
2. The dental rod capable of eliminating dental gaps according to claim 1, characterized in that, On the inner circumferential surface of the nut seat (4), there is a first convex ring (6). On the outer circumferential surface of the adjusting nut (3), there is a second convex ring (7). The second convex ring (7) is located above the first convex ring (6). The main nut (2) is located above the second convex ring (7). A preset gap is provided between the upper part of the adjusting nut (3) and the lower end face of the main nut (2).
3. A dental rod capable of eliminating dental gaps according to claim 2, characterized in that, Between the upper surface of the first convex ring (6), the outer circumferential surface of the adjusting nut (3), the inner circumferential surface of the nut seat (4), and the lower surface of the second convex ring (7), it forms the sealed chamber.
4. A dental rod capable of eliminating dental gaps according to claim 2, characterized in that Coaxially arranged between the outer circumferential surface of the second convex ring (7) and the inner circumferential surface of the nut seat (4) is a second sealing ring (9). Coaxially arranged between the inner circumferential surface of the first convex ring (6) and the outer circumferential surface of the adjusting nut (3) is a first sealing ring (8).
5. A dental rod capable of eliminating dental gaps according to claim 4, characterized in that, On the inner circumferential surface of the first convex ring (6), there is a first annular groove (10) for installing the first sealing ring (8). On the outer circumferential surface of the second convex ring (7), there is a second annular groove (11) for installing the second sealing ring (9).
6. A dental rod capable of eliminating dental gaps according to claim 1, wherein Axially provided on the end face of the main nut (2) away from the sealed chamber are a number of first screw holes (12). On the nut seat (4), there are second screw holes (13) that cooperate with the first screw holes (12). A bolt (14) passes through the first screw holes (12) and the second screw holes (13) to lock the main nut (2) and the nut seat (4) together.
7. A dental rod capable of eliminating dental gaps according to claim 1, characterized in that, The through hole (5) is radially provided on the nut seat (4).