Medical guide bearing life and durability testing machine
By designing a medical guide rail bearing life and durability performance testing machine that includes a workbench, a movable plate and a loading structure, the problem that existing equipment cannot simulate the movement and loading of bearings used in medical devices is solved, and high-precision life and durability performance testing is achieved to ensure equipment safety.
Patent Information
- Application Number
- CN202511036742.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-28
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2045-07-28
AI Technical Summary
Existing bearing testing equipment is unable to accurately simulate the reciprocating linear motion characteristics and complex loading conditions of bearings used in medical devices, and is unable to detect potential failure risks in advance, affecting the safe operation of the equipment.
A medical guide rail bearing life and durability performance testing machine was designed, which includes a workbench, a movable plate, a drive component, a loading structure and a monitoring component. It can simulate the reciprocating motion conditions of bearings used in medical devices, adjust the load size and position through the loading structure, and achieve high-precision testing in combination with a transmission belt and an electric linear guide.
It achieves high-precision life and durability testing of medical bearings, identifies potential failure risks, ensures equipment safety and the reliability of test results, and reduces testing costs and time.
Smart Images
Figure CN120521869B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of bearing testing equipment, in particular to a medical guide rail bearing life and durability performance testing machine. Background Art
[0002] Medical device bearings, core components that ensure the precise, safe, and reliable operation of medical devices such as CT scanners, operate in environments and conditions that differ significantly from those of conventional industrial bearings. These bearings must withstand variable loads in specific directions for extended periods and maintain stable performance under reciprocating linear motion. Their lifespan and durability are directly linked to the operating accuracy of medical devices and patient safety, placing extremely high demands on their reliability.
[0003] However, current bearing testing equipment is mostly suitable for conventional industrial bearings and is unable to accurately simulate the actual operating conditions of medical device bearings. Specifically, existing testing machines suffer from the following deficiencies: First, they cannot effectively simulate the reciprocating linear motion characteristics required for medical device bearings in actual operation, including the reciprocating motion control within a specific stroke and the dynamic response requirements during motion. Second, they struggle to adjust the force magnitude and distribution at different locations of the bearing according to actual operating conditions, making it impossible to replicate the complex loading conditions experienced in equipment such as CT scanners.
[0004] Due to the lack of specialized testing equipment that can match the actual working conditions of bearings used in medical devices, it is impossible to detect potential failure risks such as cage offset and increased local wear in advance through testing before such bearings are put into actual use. This may not only shorten the actual service life of the bearings, but may also affect the normal operation of medical devices due to sudden failures, and even pose a hidden danger to patient safety. Summary of the Invention
[0005] In view of the shortcomings of the existing technology, the present invention provides a medical guide rail bearing life durability performance testing machine to solve the problems in the existing technology.
[0006] To achieve the above-mentioned objectives, the present invention provides a medical guide rail bearing life and durability testing machine, comprising a workbench, a workbench seat arranged on the workbench, and a base plate arranged on the top wall of the workbench, wherein a movable plate is slidingly arranged on the base plate, and synchronization plates are bent toward the outside of the base plate on both sides of the movable plate, and an installation cavity for installing an external linear guide bearing to be tested is formed between the inner wall of the synchronization plate and the side wall of the base plate, a disassembly and assembly part for detachably connecting with the sliding part of the external linear guide bearing to be tested is provided on the movable plate, a driving component for driving the movable plate to perform reciprocating sliding motion along the length direction of the base plate is provided on the base plate, a loading structure for applying a radial load to the movable plate to simulate the load condition of the actual operation of the bearing and an adjustment structure for cooperating with the loading structure to change the load position of the loading structure acting on the movable plate.
[0007] The benefits of adopting the above technical solution are: the stable base design of the workbench and the bottom plate in the above technology provides a reliable support platform for the entire testing process, ensuring that the main body of the equipment will not be displaced or deformed during long-term reciprocating motion testing, laying the foundation for high-precision testing; and the sliding matching structure of the movable plate and the bottom plate can accurately simulate the reciprocating motion conditions of the medical linear guide bearings in actual medical equipment, so that the motion form and force direction of the bearing to be tested during the test are highly consistent with the actual usage scenario, effectively improving the reliability of the test results; in the above technology, the stable assembly of the bearing to be tested is achieved through the cooperation of the mounting cavity and the disassembly and assembly parts. , to ensure the effective transmission of motion loads during the test, while adapting to the testing needs of bearings of different models and specifications, greatly improving the versatility of the testing machine; the movable plate is driven to slide back and forth by the drive component to accurately simulate the reciprocating linear motion conditions of medical bearings in equipment such as CT machines, and an automated reciprocating motion control system is constructed. The entire test process does not require human intervention, which not only improves the test efficiency, but also avoids errors that may be introduced by human operation, ensuring the stability and consistency of the test process; and the loading structure and the adjustment structure cooperate to flexibly adjust the load size and action position to reproduce the complex load conditions in the actual operation of the bearing. The above-mentioned technical settings solve the problem that existing equipment cannot match the actual working conditions of medical bearings, provide a dedicated platform for life and durability performance testing, ensure that the test results are highly consistent with the actual usage scenarios, help to discover potential risks such as cage offset in advance, and ensure the safe operation of medical equipment.
[0008] The present invention is further provided with: connecting grooves are provided on the top wall of the movable plate corresponding to the two mounting cavity positions along the sliding direction of the movable plate; a plurality of mounting holes are distributed in the connecting grooves along the sliding direction of the movable plate; the disassembly and assembly parts include a plurality of connecting shafts for threaded connection with the sliding part of the linear guide bearing to be tested externally; and a plurality of the connecting shafts are threadedly matched with some of the plurality of mounting holes.
[0009] The benefits of adopting the above technical solution are: in the above technology, the connecting groove and the mounting hole are set, and the connecting shaft is used to realize the detachable connection between the sliding part of the bearing to be tested and the movable plate, and multiple mounting holes can adapt to the installation requirements of bearings of different specifications, so that the installation test of bearings of different models can be completed without replacing the main structure of the equipment, thereby improving the versatility and flexibility of the equipment, reducing the testing cost, shortening the test switching time of different bearings, and enhancing the applicability of the equipment.
[0010] The present invention is further provided with: the driving assembly includes a driving motor and a mounting base for mounting the driving motor on the bottom wall of the end portion of the base plate; the output end of the driving motor is coaxially connected to the first transmission wheel; a linkage seat and a second transmission wheel rotatably arranged on the linkage seat are provided on the bottom wall of the starting end of the base plate; a transmission belt is connected with the first transmission wheel and the second transmission wheel with a belt transmission; the driving structure also includes a synchronization seat provided on the outer wall of one side of the synchronization plate; the synchronization seat is composed of a vertical plate and a horizontal plate; the vertical plate is vertically connected to the horizontal plate; the horizontal plate and the belt body of the transmission belt are detachably connected with a plurality of connecting bolts; the vertical plate is connected to the synchronization plate.
[0011] The benefits of adopting the above technical solution are: in the above technology, the drive motor is transmitted through the transmission wheel and the transmission belt, the transmission is stable and the response is fast, and the vertical plate and horizontal plate structure of the synchronous seat ensure the reliable connection between the transmission belt and the synchronous plate, thereby realizing stable drive of the movable plate. Compared with the traditional transmission method, the belt transmission torque of this technical structure is large and the control is precise, which can meet the dynamic response requirements of the reciprocating motion of the medical bearing, ensure that the motion trajectory of the movable plate is consistent with the actual working conditions, and improve the test accuracy.
[0012] The present invention is further provided with: a plurality of pre-tightening holes are opened on the side wall of the synchronization plate along its length direction; the disassembly and assembly parts also include a plurality of pre-tightening bolts for abutting against the outer wall of the sliding part of the linear guide bearing to be tested and applying a force to apply a pre-tightening force to the linear guide bearing to be tested; the plurality of pre-tightening bolts correspond one-to-one to the plurality of pre-tightening holes and are threadedly connected and matched.
[0013] The benefits of adopting the above technical solution are: the combination of the preload bolt and the preload hole in the above technology can apply different preload forces to the bearing, simulating its preload state in actual assembly, and adjusting the preload force according to the test requirements of different preload forces, thereby verifying the performance of the bearing under different preload forces, discovering the failure risk caused by improper preload in advance, enriching the test dimension, and making the test results more in line with actual usage scenarios.
[0014] The present invention further provides that: a plurality of adjusting bolts are provided on the vertical plate, and the plurality of adjusting bolts are threadedly connected with a portion of the plurality of pre-tightening holes where no pre-tightening bolts are installed.
[0015] The benefits of adopting the above technical solution are: the design of threaded connection between several adjusting bolts and some pre-tightening holes in the pre-tightening holes where no pre-tightening bolts are installed in the above technology provides a flexible and adjustable installation method for the connection between the synchronizer seat and the synchronizer plate. Since it may be necessary to adjust the tension of the transmission belt or the initial position of the movable plate in different test scenarios, the setting of changing the position of the adjusting bolt allows the operator to select a suitable connection position according to actual needs, thereby accurately adjusting the installation position of the synchronizer seat on the synchronizer plate. This adjustable connection method can effectively adapt to the length change of the transmission belt caused by wear during long-term use. By reselecting the matching position of the pre-tightening hole and the adjusting bolt, the tension of the transmission belt can be easily adjusted to ensure that the belt drive mechanism always maintains a stable transmission efficiency and avoids slipping due to belt looseness or damage to components due to excessive tension.
[0016] The present invention is further provided with: a stop block is provided on the bottom wall of the synchronization plate, the stop block is provided away from the center of the bottom plate and close to the end of the movable plate, and a travel switch is provided on the bottom wall at the center of the bottom plate for colliding with the stop block when the movable plate slides to the limit distance to output a feedback signal to the drive motor.
[0017] The advantages of adopting the above technical solution are as follows: the stop block is positioned on the bottom wall of the synchronization plate, near the end of the movable plate, and its position precisely corresponds to the limit of the movable plate's sliding distance. When the movable plate slides to this position under the action of the drive member, the stop block collides with the limit switch set on the bottom wall of the base plate, triggering the limit switch to output a feedback signal to the drive motor. This feedback mechanism can monitor the position of the movable plate in real time, ensuring that a reverse drive command is immediately issued when the preset limit position is reached, causing the drive motor to quickly adjust the rotation direction and drive the movable plate to begin sliding in the opposite direction, thereby forming an automatic reciprocating motion cycle. The coordination of the stop block and the limit switch not only improves test efficiency but, more importantly, provides safety for the entire test process. The limit switch in the above technology is existing technology, so its structure and function will not be elaborated on in detail.
[0018] The present invention is further provided with: two groups of brackets are mounted on the workbench, the two groups of brackets are respectively arranged at both ends of the movable plate and the two groups of brackets are arranged opposite to each other, two groups of support plates are detachably connected between the two groups of brackets, the two groups of support plates are opposite to each other, the loading structure includes at least one group of loading parts, each group of the loading parts is composed of two oppositely arranged loading cylinders and the two loading cylinders are respectively arranged on the two support plates, the output end of the loading cylinder is arranged relative to the top wall of the movable plate and the output end of the loading cylinder is detachably connected to the movable plate.
[0019] The benefits of adopting the above technical solution are: the combination of the bracket and the support plate in the above technology provides stable support for the loading cylinder, and the two sets of relatively arranged loading parts can simulate the actual load conditions of bearings in different positions in equipment such as CT machines by increasing or decreasing the number and adjusting the position. By accurately reproducing the load size and distribution of the bearings in actual operation, the problem that existing equipment is difficult to simulate complex loads is solved, the reproducibility of the test to actual working conditions is improved, and real data support is provided for life assessment.
[0020] The present invention is further provided that: the adjustment structure includes two electric linear guide rails, the two electric linear guide rails are respectively arranged on the bottom walls of two support plates, the electric linear guide rails include a slide rail and a first sliding seat slidingly arranged on the slide rail, the sliding direction of the first sliding seat on the slide rail is consistent with the sliding direction of the movable plate, and the top wall of the loading cylinder is detachably connected to the adjacent first sliding seat.
[0021] The benefits of adopting the above technical solution are: in the above technology, the first sliding seat of the electric linear guide slides along the slide rail in the same direction as the movable plate, thereby driving the loading cylinder and the movable plate to move synchronously, thereby ensuring that the two are relatively stationary during the load application process, and the direction and magnitude of the load are stable; by sliding the electric drive first sliding seat of the electric linear guide, the position of the loading cylinder can be quickly adjusted to adapt to the load distribution requirements of different test stages, thereby improving the accuracy and dynamic adaptability of load control, and ensuring the reliability of complex load simulation; the electric linear guide in the above technology is an existing technology, which includes a slide rail, a sliding seat and a motor for driving the sliding seat to slide. Since it is an existing technology, its structure and function will not be described in detail.
[0022] The present invention further provides that: the electric linear guide rail also includes a second sliding seat slidingly arranged on the slide rail, and a support column is provided between the second sliding seat and the movable plate to prevent excessive bending of the movable plate during movement, the starting end of the support column is detachably connected to the second sliding seat, and the end end of the support column is detachably connected to the movable plate.
[0023] The benefits of adopting the above technical solution are: the second sliding seat in the above technology cooperates with the support column to provide effective support for the movable plate to address the problem that the movable plate is prone to bending due to being suspended in the air, thereby reducing the amount of deformation, thereby ensuring the straightness of the movable plate's movement, avoiding additional wear of the bearings or deviation of the motion trajectory due to bending, reducing test errors, extending the service life of the equipment, and improving the reliability of test data.
[0024] The present invention further provides that: a monitoring component for monitoring the operating data of the linear guide bearing to be tested is provided on the workbench, and the monitoring component includes a patch temperature sensor for monitoring the temperature conditions of the linear guide bearing to be tested during operation and a vibration sensor provided on the bottom wall of the base plate for monitoring the vibration value of the linear guide bearing to be tested during operation.
[0025] The benefits of adopting the above technical solution are: the chip temperature sensor in the above technology has the functions of fast response and accurate temperature measurement. By setting the chip temperature sensor on the linear guide bearing to be tested, the temperature value of the bearing during operation can be monitored in real time; and the vibration sensor can cover a wide range of frequencies and capture abnormal vibrations; by setting the temperature sensor and the vibration sensor, a shutdown alarm can be triggered when the monitoring data exceeds the threshold to avoid the expansion of the fault; at the same time, the complete data curve is recorded to provide a basis for failure analysis, help trace the causes of faults such as overheating and abnormal vibration, and improve the safety and scientificity of the test; the temperature sensor and the vibration sensor in the above technology are both existing technologies, so their structure and function will not be described in detail. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 A three-dimensional view of the present invention;
[0027] Figure 2 for Figure 1 Partial 3D view after removing the bracket and workbench;
[0028] Figure 3 This is an axial three-dimensional view of the cooperation state of the bottom plate, movable plate and tooling seat in the present invention;
[0029] Figure 4 A three-dimensional view of the bottom plate, movable plate and tooling seat in the present invention;
[0030] Figure 5 It is a partial cross-sectional view of the bottom plate and the movable plate in the present invention in the coordinated state. DETAILED DESCRIPTION
[0031] The present invention provides a medical guide bearing life durability performance testing machine, comprising a workbench 1, a workbench seat 11 arranged on the workbench 1 and a base plate 12 arranged on the top wall of the workbench 1, a movable plate 2 is slidably arranged on the base plate 12, and synchronization plates 21 are bent on both sides of the movable plate 2 toward the outside of the base plate 12, and an installation cavity 121 for installing an external linear guide bearing to be tested is formed between the inner wall of the synchronization plate 21 and the side wall of the base plate 12, a disassembly and assembly part for detachably connecting with the sliding part of the external linear guide bearing to be tested is provided on the movable plate 2, a driving component for driving the movable plate 2 to make a reciprocating sliding motion along the length direction of the base plate 12 is provided on the base plate 12, and a drive assembly for driving the movable plate 2 to slide back and forth along the length direction of the base plate 12 is provided on the workbench 1. The movable plate 2 applies a radial load to simulate the loading structure of the load condition of the actual operation of the bearing, and the adjustment structure is used to cooperate with the loading structure to change the load position of the loading structure on the movable plate 2. The two mounting cavities 121 on the top wall of the movable plate 2 are respectively provided with connecting grooves 22 along the sliding direction of the movable plate 2. The connecting grooves 22 are provided with a plurality of mounting holes 221 along the sliding direction of the movable plate 2. The disassembly and assembly parts include a plurality of connecting shafts 222 for being threadedly connected to the sliding part of the linear guide bearing to be tested outside. The plurality of connecting shafts 222 are threadedly matched with some of the mounting holes 221 in the plurality of mounting holes 221. The driving assembly includes a driving motor 3 and a drive assembly for mounting the driving motor 3 on the base plate. 12 end bottom wall mounting seat, the output end of the drive motor 3 is coaxially connected to the first transmission wheel 31, the bottom wall of the starting end of the base plate 12 is provided with a linkage seat 122 and a second transmission wheel 123 rotatably arranged on the linkage seat 122, the first transmission wheel 31 and the second transmission wheel 123 are connected with a transmission belt 32 by a belt transmission, the driving structure further includes a synchronization seat provided on the outer wall of one side of the synchronization plate 21, the synchronization seat is composed of a vertical plate 211 and a horizontal plate 212, the vertical plate 211 is vertically connected to the horizontal plate 212, the horizontal plate 212 and the belt body of the transmission belt 32 are detachably connected with a number of connecting bolts 213, the vertical plate 211 is connected to the synchronization plate 21, the upper edge of the side wall of the synchronization plate 21 A plurality of pre-tightening holes 214 are provided in its length direction, and the disassembling parts further include a plurality of pre-tightening bolts 215 for abutting against the outer wall of the sliding portion of the linear guide bearing to be tested and applying a force to apply a pre-tightening force to the linear guide bearing to be tested. The plurality of pre-tightening bolts 215 correspond to the plurality of pre-tightening holes 214 one by one and are threadedly connected and matched. The vertical plate 211 is provided with a plurality of adjusting bolts 216, and the plurality of adjusting bolts 216 are threadedly connected with the plurality of pre-tightening holes 214 in which the pre-tightening bolts 215 are not installed. The bottom wall of the synchronous plate 21 is provided with a stop block 23, and the stop block 23 is arranged away from the center of the bottom plate 12 and close to the end of the movable plate 2.A travel switch 24 is provided on the bottom wall at the center of the base plate 12 for colliding with the stop block 23 when the movable plate 2 slides to the limit distance to output a feedback signal to the drive motor 3. Two groups of brackets 5 are mounted on the workbench 1. The two groups of brackets 5 are respectively arranged at both ends of the movable plate 2 and the two groups of brackets 5 are arranged opposite to each other. Two groups of support plates 51 are detachably connected between the two groups of brackets 5. The two groups of support plates 51 are arranged opposite to each other. The loading structure includes at least one group of loading parts, each group of loading parts is composed of two oppositely arranged loading cylinders 4 and the two loading cylinders 4 are respectively arranged on the two support plates 51. The output end of the loading cylinder 4 is arranged perpendicularly to the top wall of the movable plate 2 and the output end of the loading cylinder 4 is detachably connected to the movable plate 2. The adjustment structure includes two electric linear guides. The two electric linear guides are respectively arranged on the bottom walls of the two support plates 51. The electric linear guide includes a slide rail 52 and a second slide rail 52 arranged on the slide rail 52. A sliding seat 53, the sliding direction of the first sliding seat 53 on the slide rail 52 is consistent with the sliding direction of the movable plate 2, the top wall of the loading cylinder 4 is detachably connected to the adjacent first sliding seat 53, the electric linear guide also includes a second sliding seat 54 slidingly set on the slide rail 52, and a support column 55 is provided between the second sliding seat 54 and the movable plate 2 to prevent the movable plate 2 from excessive bending during movement. The starting end of the support column 55 is detachably connected to the second sliding seat 54, and the end of the support column 55 is detachably connected to the movable plate 2. A monitoring component for monitoring the operating data of the linear guide bearing to be tested is provided on the tooling seat 11, and the monitoring component includes a patch temperature sensor 6 for monitoring the temperature condition of the linear guide bearing to be tested during operation and a vibration sensor 61 provided on the bottom wall of the base plate 12 for monitoring the vibration value of the linear guide bearing to be tested during operation.
[0032] The overall operation process of the present invention is as follows:
[0033] 1. Test preparation stage:
[0034] First, install the medical guide bearing to be tested in the mounting cavity between the movable plate and the base plate. Fix the sliding part of the bearing by connecting the shaft and the mounting hole. Removably connect the fixed part of the linear guide bearing to be tested to the base plate through external bolts and other fasteners. Adjust the position of the preload bolt and the locking torque according to the bearing model to set the preload force. Adjust the position of the stop block to determine the reciprocating motion distance. Set the load size and action point by increasing or decreasing the number of loading cylinders and adjusting their positions. At the same time, install the chip temperature sensor and vibration sensor, and set the temperature and vibration alarm thresholds.
[0035] 2. Start-up phase:
[0036] Start the drive assembly, and the drive motor drives the movable plate to slide back and forth along the base plate through the synchronous belt; when the movable plate moves, the stop block hits the signal feedback device, triggering the motor to reverse and achieve precise reciprocating motion; the loading cylinder moves synchronously with the electric linear guide and the movable plate, stably applying the preset load, and the support column prevents the movable plate from bending and deformation.
[0037] 3. Real-time monitoring stage:
[0038] The chip temperature sensor monitors the bearing temperature in real time, and the vibration sensor captures the operating vibration data. If the data exceeds the threshold, the equipment will automatically shut down and alarm to prevent the fault from expanding. The number of movements, load changes, temperature and vibration data are recorded throughout the process to provide a basis for life and durability performance analysis.
[0039] 4. End of the trial:
[0040] After reaching the preset number of tests, the equipment automatically stops running; the load is unloaded, the bearing to be tested is disassembled, and the monitoring data is exported to complete the assessment of the bearing life, wear and potential failure risks, providing test support for optimizing bearing design or improving processes.
[0041] The linear guide bearing to be tested described in the above technology is an existing technology, which includes a fixed part and a sliding part that slides relative to the fixed part. Since it is an existing technology, it will not be described in detail. At the same time, the linear guide bearing to be tested is marked as 7 in the accompanying drawings of the specification, its sliding part is marked as 71 in the accompanying drawings of the specification, and its fixed part is marked as 72 in the accompanying drawings of the specification.
[0042] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A medical guide rail bearing life and durability testing machine, characterized by: The cam is provided with a plurality of movable plates, each of which is provided with a plurality of movable plates, and a plurality of synchronous plates are provided on both sides of the movable plate so as to be bent toward the outside of the base plate. A mounting cavity for installing a linear guide bearing to be tested from the outside is formed between the inner wall of the synchronous plate and the side wall of the base plate. A disassembly and assembly part for detachably connecting with the sliding part of the linear guide bearing to be tested from the outside is provided on the movable plate. A driving component for driving the movable plate to perform reciprocating sliding motion along the length direction of the base plate is provided on the base plate. A loading structure for applying a radial load to the movable plate to simulate the load condition of the actual operation of the bearing and an adjustment structure for cooperating with the loading structure to change the load position of the loading structure on the movable plate are provided on the workbench.
2. A medical guide rail bearing life and durability testing machine according to claim 1, characterized in that: The two mounting cavity positions corresponding to the top wall of the movable plate are both provided with connecting grooves along the sliding direction of the movable plate. The connecting grooves are provided with a plurality of mounting holes along the sliding direction of the movable plate. The disassembly and assembly parts include a plurality of connecting shafts for threaded connection with the sliding part of the linear guide bearing to be tested externally, and a plurality of the connecting shafts are threadedly matched with some of the plurality of mounting holes.
3. The medical guide rail bearing life and durability testing machine according to claim 1, characterized in that: The drive assembly includes a drive motor and a mounting seat for mounting the drive motor on the bottom wall of the end portion of the base plate, the output end of the drive motor is coaxially connected to the first transmission wheel, a linkage seat and a second transmission wheel rotatably arranged on the linkage seat are provided on the bottom wall of the starting end of the base plate, a transmission belt is connected between the first transmission wheel and the second transmission wheel with a belt transmission, the drive structure also includes a synchronization seat provided on the outer wall of one side of the synchronization plate, the synchronization seat is composed of a vertical plate and a horizontal plate, the vertical plate is vertically connected to the horizontal plate, the horizontal plate and the belt body of the transmission belt are detachably connected by a plurality of connecting bolts, and the vertical plate is connected to the synchronization plate.
4. The medical guide rail bearing life and durability testing machine according to claim 3, characterized in that: A plurality of pre-tightening holes are provided on the side wall of the synchronization plate along its length direction. The disassembly and assembly parts also include a plurality of pre-tightening bolts for abutting against the outer wall of the sliding part of the linear guide bearing to be tested and applying a force to apply a pre-tightening force to the linear guide bearing to be tested. The plurality of pre-tightening bolts correspond one to one to the plurality of pre-tightening holes and are threadedly connected and matched.
5. The medical guide rail bearing life and durability testing machine according to claim 4, characterized in that: A plurality of adjusting bolts are arranged on the vertical plate, and the plurality of adjusting bolts are threadedly connected with a portion of the plurality of pre-tightening holes where no pre-tightening bolts are installed.
6. The medical guide rail bearing life and durability testing machine according to claim 3, characterized in that: A stop block is provided on the bottom wall of the synchronization plate, and the stop block is provided away from the center of the bottom plate and close to the end of the movable plate. A travel switch is provided on the bottom wall at the center of the bottom plate for colliding with the stop block when the movable plate slides to the limit distance to output a feedback signal to the drive motor.
7. The medical guide rail bearing life and durability testing machine according to claim 1, characterized in that: Two groups of brackets are mounted on the workbench, and the two groups of brackets are respectively arranged at both ends of the movable plate and the two groups of brackets are arranged opposite to each other. Two groups of support plates are detachably connected between the two groups of brackets, and the two groups of support plates are opposite to each other. The loading structure includes at least one group of loading parts, each group of loading parts is composed of two oppositely arranged loading cylinders, and the two loading cylinders are respectively arranged on two support plates. The output end of the loading cylinder is arranged perpendicularly to the top wall of the movable plate, and the output end of the loading cylinder is detachably connected to the movable plate.
8. The medical guide rail bearing life and durability testing machine according to claim 7, characterized in that: The adjustment structure includes two electric linear guides, which are respectively arranged on the bottom walls of two support plates. The electric linear guides include a slide rail and a first sliding seat slidingly arranged on the slide rail. The sliding direction of the first sliding seat on the slide rail is consistent with the sliding direction of the movable plate. The top wall of the loading cylinder is detachably connected to the adjacent first sliding seat.
9. The medical guide rail bearing life and durability testing machine according to claim 8, characterized in that: The electric linear guide rail also includes a second sliding seat slidingly arranged on the slide rail, and a support column is provided between the second sliding seat and the movable plate to prevent excessive bending of the movable plate during movement. The starting end of the support column is detachably connected to the second sliding seat, and the end of the support column is detachably connected to the movable plate.
10. The medical guide rail bearing life and durability testing machine according to claim 1, characterized in that: The workbench is provided with a monitoring component for monitoring the operating data of the linear guide bearing to be tested, and the monitoring component includes a patch temperature sensor for monitoring the temperature conditions of the linear guide bearing to be tested during operation and a vibration sensor arranged on the bottom wall of the base plate for monitoring the vibration value of the linear guide bearing to be tested during operation.