Contact-driven hinge bearing running-in experiment table

Abstract

A contact-driven hinge bearing running-in experiment table belongs to the field of equipment design and comprises a base and a lower support arranged on the base, the top of the lower support is provided with a boss used for bearing a hinge bearing assembly, and the top of the hinge bearing assembly is provided with a swing connecting rod used for driving the hinge bearing assembly to move synchronously. Extension portions extending towards the base are arranged at two ends of the swing connecting rod, an output seat fixedly connected with an output shaft of the transmission part is arranged at the top of the swing connecting rod, an input shaft of the transmission part is connected with a non-eccentric end of an eccentric shaft, an eccentric end of the eccentric shaft is connected with an output shaft of a driving motor, and the driving motor is arranged on the base. The power transmission efficiency of the experiment table is relatively high, energy consumed in the experiment process is reduced, and the experiment accuracy and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of equipment design, specifically a contact-driven hinge bearing running-in test bench. Background Technology

[0002] In lens adjustment mechanisms, hinge bearings serve as crucial connecting components. The lifespan and stability of these bearings directly impact the normal operation of the lens adjustment mechanism; therefore, lifespan is a key indicator for evaluating their performance. To accurately monitor the lifespan of hinge bearings, a hinge bearing running-in test bench was designed to simulate actual working conditions. This allows the hinge bearing to gradually adapt to its operating state during initial operation, while simultaneously detecting any defects, thus ensuring its future reliability.

[0003] Currently, most existing hinge bearing running-in test benches on the market adopt a non-contact drive method. Although these devices can complete the running-in test to a certain extent, the power transmission efficiency of the non-contact drive method is relatively low, which may result in greater energy loss during the experiment, affecting the accuracy and efficiency of the experiment. Utility Model Content

[0004] To address the issue of relatively low power transmission efficiency in existing non-contact drive running-in test benches, this invention provides a contact drive hinge bearing running-in test bench. This test bench has relatively high power transmission efficiency, reduces energy loss during the experiment, and improves the accuracy and efficiency of the experiment.

[0005] To achieve the above objectives, the specific solution adopted by this utility model is as follows: a contact-driven hinge bearing running-in test bench, including a base and a lower support mounted on the base. The top of the lower support is provided with a boss for supporting the hinge bearing assembly. The top of the hinge bearing assembly is provided with a swing link for driving its synchronous movement. Both ends of the swing link are provided with extensions extending toward the base. The top of the swing link is provided with an output seat fixedly connected to the output shaft of a transmission component. The input shaft of the transmission component is connected to the non-eccentric end of an eccentric shaft. The eccentric end of the eccentric shaft is connected to the output shaft of a drive motor, and the drive motor is mounted on the base.

[0006] As an optimized solution for the aforementioned contact-driven hinge bearing running-in test bench: the eccentric end of the eccentric shaft is provided with a blind hole for the output shaft of the drive motor to extend into.

[0007] As another optimization scheme for the above-mentioned contact-driven hinge bearing running-in test bench: the eccentric end sidewall of the eccentric shaft is provided with a set screw, and during the rotation, one end of the set screw can extend into the blind hole and abut against the output shaft of the drive motor.

[0008] As another optimized solution for the contact-driven hinge bearing running-in test bench mentioned above: the boss has an upward-facing groove, a fixing ring is provided in the groove, and a first screw is provided at the bottom of the fixing ring. The first screw passes through the lower support and is fixedly connected to the base.

[0009] As another optimized solution for the aforementioned contact-driven hinge bearing running-in test bench: the fixed ring and the swing linkage are fixedly connected by a tension spring.

[0010] As another optimization scheme for the aforementioned contact-driven hinge bearing running-in test bench: two limiting blocks are symmetrically provided on the base, and the two limiting blocks are located on both sides of the swing link respectively.

[0011] As another optimization scheme for the above-mentioned contact-driven hinge bearing running-in test bench: the top of the limiting block is not lower than the bottom of the extension.

[0012] As another optimized solution for the aforementioned contact-driven hinge bearing running-in test bench: the base is provided with a support rod for supporting the drive motor.

[0013] As another optimization of the contact-driven hinge bearing running-in test bench mentioned above: the top of the boss is provided with a first pressure block for pressing the hinge bearing assembly, and the first pressure block and the boss are fixedly connected by a second screw.

[0014] As another optimized solution for the aforementioned contact-driven hinge bearing running-in test bench: the bottom of the swing link is provided with a second pressure block for pressing the hinge bearing assembly, and the second pressure block is fixedly connected to the swing link by a third screw.

[0015] Compared with existing technologies, this invention has the following advantages: This invention provides a contact-driven hinge bearing running-in test bench. The test bench connects the eccentric end of an eccentric shaft to the output end of a drive motor, enabling the drive motor to precisely transmit power to the eccentric shaft, thereby driving the transmission components and the swing linkage to move, achieving synchronous drive of the hinge bearing assembly. This connection method has high transmission efficiency, ensuring the stability and reliability of power transmission during the experiment, effectively avoiding losses and errors in the power transmission process, and improving the accuracy and efficiency of the experiment.

[0016] In this utility model, the eccentric end of the eccentric shaft is provided with a blind hole and a set screw is rotatably provided on the side wall of the eccentric end. The set screw can extend into the blind hole and abut against the output shaft of the drive motor, which further enhances the connection stability between the eccentric shaft and the output shaft of the drive motor, effectively prevents the connection from loosening due to vibration or impact, extends the service life of the equipment, and reduces maintenance costs.

[0017] In this invention, the fixing ring on the boss is fixedly connected to the base by a first screw, and the fixing ring is also fixedly connected to the swing linkage by a tension spring. The tension spring buffers the impact of the swing linkage's movement to a certain extent, reducing damage to the hinge bearing assembly and improving the safety and reliability of the experiment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the break-in test bench;

[0019] Figure 2 This is a schematic diagram of an eccentric shaft;

[0020] Reference numerals: 1. Drive motor; 2. Hinge bearing assembly; 3. Lower support; 301. Boss; 302. Groove; 4. Swinging link; 401. Extension; 5. Transmission component; 6. Output seat; 7. Eccentric shaft; 701. Blind hole; 8. Set screw; 9. Retaining ring; 10. Tension spring; 11. Base; 12. First screw; 13. Support rod; 14. Limiting block; 15. First pressure block; 16. Second screw; 17. Second pressure block; 18. Third screw. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below with reference to specific embodiments. Parts not described or disclosed in detail in the following embodiments of this utility model should be understood as prior art known or should be known by those skilled in the art.

[0022] Example 1

[0023] like Figure 1 , Figure 2 As shown, a contact-driven hinge bearing running-in test bench includes a base 11 and a lower support 3 mounted on the base 11. The base 11 is the basic support component of the test bench, made of high-strength metal, with a flat surface and mounting holes to facilitate the fixing of the lower support 3 to the base 11. The top of the lower support 3 has a boss 301 for supporting the hinge bearing assembly 2. The size of the boss 301 is adapted to the outer ring of the hinge bearing assembly 2 to ensure stable installation. The boss 301 has two arc-shaped grooves for accommodating the hinge bearing assembly 2. The boss 301 also has an upward-facing groove 302 located between the two arc-shaped grooves. A fixing ring 9 is provided inside the groove 302. The top of the fixing ring 9 is not higher than the top of the boss 301, and a first screw 12 is provided at the bottom of the fixing ring 9. The first screw 12 passes through the lower support 3 and is fixedly connected to the base 11.

[0024] The hinge bearing assembly 2 has a swing link 4 at its top for synchronous movement. The bottom of the swing link 4 has two arc-shaped grooves to accommodate the hinge bearing assembly 2. The swing link 4 is elongated and spans above the hinge bearing assembly 2. Both ends of the swing link 4 have extensions 401 extending towards the base 11, with the bottom of the extensions 401 higher than the top of the lower support 3. The top of the swing link 4 has an output seat 6 fixedly connected to the output shaft of the transmission component 5. The output seat 6 is a block structure, fixed to the center of the top of the swing link 4 with bolts. The other side of the output seat 6 is keyed to the output shaft of the transmission component 5 to ensure synchronous transmission. The transmission component 5 can be a gearbox or a coupling, converting the rotational motion of the eccentric shaft 7 into the reciprocating swing of the swing link 4. The input shaft of the transmission component 5 is connected to the non-eccentric end of the eccentric shaft 7, and the eccentric end of the eccentric shaft 7 is connected to the output shaft of the drive motor 1, which is mounted on the base 11.

[0025] The eccentric shaft 7 has a blind hole 701 at its eccentric end, into which the output shaft of the drive motor 1 extends. The axis of the blind hole 701 does not coincide with the axis of the eccentric shaft 7. Two setter screws 8 are rotatably mounted on the side wall of the eccentric end of the eccentric shaft 7. During rotation, one end of each setter screw 8 can extend into the blind hole 701 and abut against the output shaft of the drive motor 1. This achieves circumferential fixation and prevents slippage during transmission.

[0026] The base 11 is provided with a support rod 13 for supporting the drive motor 1. The support rod 13 is a columnar structure, and its two ends are bolted to the base 11 and the bottom of the drive motor 1, respectively, to provide reliable support.

[0027] The above are the basic embodiments of this utility model. Further improvements, optimizations, and limitations can be made based on the above to obtain the following embodiments:

[0028] Example 2

[0029] This embodiment is an improvement on embodiment 1. Its main structure is the same as that of embodiment 1, but the improvement lies in:

[0030] like Figure 1 As shown, the fixed ring 9 and the swing link 4 are fixedly connected by a tension spring 10. Specifically, one end of the tension spring 10 is hooked to the outside of the fixed ring 9, and the other end is hooked to the connecting rope at the bottom of the swing link 4. The tension spring 10 provides a restoring force for the swing link 4, ensuring that the swing link 4 can return to its initial position when the driving force disappears.

[0031] Two limiting blocks 14 are symmetrically arranged on the base 11, and the two limiting blocks 14 are located on both sides of the swing link 4. Specifically, the limiting blocks 14 are rectangular block structures, and the top of the limiting blocks 14 is not lower than the bottom of the extension 401. When the swing link 4 swings to its limit position, the extension 401 contacts the limiting blocks 14 to prevent excessive swinging from causing structural damage.

[0032] Example 3

[0033] This embodiment is an improvement on embodiment 1. Its main structure is the same as that of embodiment 1, but the improvement lies in:

[0034] like Figure 1 As shown, the top of the boss 301 is provided with a first pressing block 15 for pressing the hinge bearing assembly 2. There are two first pressing blocks 15, and each first pressing block 15 has a semi-circular groove corresponding to the arc-shaped groove. The first pressing block 15 and the boss 301 are fixedly connected by a second screw 16. There are two second screws 16 provided on each first pressing block 15, and the two second screws are symmetrically arranged.

[0035] The bottom of the swing link 4 is provided with a second pressure block 17 for pressing the hinge bearing assembly 2. There are two second pressure blocks 17, and each second pressure block 17 has a semi-circular groove corresponding to the arc groove. The second pressure block 17 and the swing link 4 are fixedly connected by a third screw 18. There are two third screws 18 on each second pressure block 17, and the two third screws are symmetrically arranged.

[0036] The running-in test bench operates as follows: In the initial state, the swing link 4 is in the middle position, and the tension spring 10 is in its natural extension state. When the device needs to be started, the drive motor 1 is started, and its output shaft drives the eccentric shaft 7 to rotate. Through the transmission component 5, the rotational motion is converted into the reciprocating swing of the swing link 4. The swing link 4 drives the inner or outer ring of the hinge bearing assembly 2 to swing through contact force, simulating the motion trajectory under actual working conditions, thus achieving the running-in of the bearing. The limit block 14 set on the base 11 limits the swing range of the swing link 4 to ensure that the experimental process is safe and controllable. When the device needs to be stopped, the power of the drive motor 1 is turned off, and the tension spring 10 pulls the swing link 4 back to the initial position, and the device stops working.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A contact-driven hinge bearing run-in test bench, comprising a base (11) and a lower support (3) arranged on the base (11), and a boss (301) arranged on the top of the lower support (3) for carrying a hinge bearing assembly (2), characterized in that: The hinge bearing assembly (2) is provided with a swing link (4) at the top for driving its synchronous movement. Both ends of the swing link (4) are provided with extensions (401) extending toward the base (11). The top of the swing link (4) is provided with an output seat (6) fixedly connected to the output shaft of the transmission component (5). The input shaft of the transmission component (5) is connected to the non-eccentric end of the eccentric shaft (7). The eccentric end of the eccentric shaft (7) is connected to the output shaft of the drive motor (1), and the drive motor (1) is mounted on the base (11).

2. The contact-driven hinge bearing running-in test bench as described in claim 1, characterized in that: The eccentric end of the eccentric shaft (7) is provided with a blind hole (701) into which the output shaft of the drive motor (1) extends.

3. A contact driven hinge bearing run-in test bench as claimed in claim 2, characterized in that: The eccentric shaft (7) has a set screw (8) rotatably mounted on the eccentric end sidewall. During rotation, one end of the set screw (8) can extend into the blind hole (701) and abut against the output shaft of the drive motor (1).

4. A contact driven hinge bearing run-in test bench as claimed in claim 1, characterized in that: The boss (301) has an upward-facing groove (302), a fixing ring (9) is provided in the groove (302), and a first screw (12) is provided at the bottom of the fixing ring (9). The first screw (12) passes through the lower support (3) and is fixedly connected to the base (11).

5. A contact driven hinge bearing run-in test bench as claimed in claim 4, characterized in that: The fixed ring (9) and the swing link (4) are fixedly connected by a tension spring (10).

6. A contact driven hinge bearing run-in test stand as in claim 1, characterized in that: Two limiting blocks (14) are symmetrically provided on the base (11), and the two limiting blocks (14) are located on both sides of the swing link (4).

7. A contact driven hinge bearing run-in test bench as claimed in claim 6, characterized in that: The top of the limiting block (14) is not lower than the bottom of the extension (401).

8. A contact driven hinge bearing run-in test stand as claimed in claim 1, characterized in that: The base (11) is provided with a support rod (13) for supporting the drive motor (1).

9. A contact driven hinge bearing run-in test stand as in claim 1, wherein: The top of the boss (301) is provided with a first pressure block (15) for pressing the hinge bearing assembly (2), and the first pressure block (15) is fixedly connected to the boss (301) by a second screw (16).

10. A contact driven hinge bearing run-in test stand as claimed in claim 1, characterized in that: The bottom of the swing link (4) is provided with a second pressure block (17) for pressing the hinge bearing assembly (2), and the second pressure block (17) is fixedly connected to the swing link (4) by a third screw (18).

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