Universal joint angle testing device

Abstract

The utility model discloses a universal joint angle testing device, and relates to the technical field of universal joint testing, the universal joint angle testing device comprises a driving rotation part and a driven rotation part which are respectively used for connecting two universal joint connecting ends, and the driving rotation part and the driven rotation part are both installed on a rack; the driving rotary part and / or the driven rotary part can perform position adjusting action along the rack, so that the universal joint generates yoke angle changing action due to position change of the corresponding rotary part; the testing device further comprises a locking piece used for fixing the position of the corresponding rotating part. The driving rotary part and the driven rotary part can be used for rotary installation of the two universal joint connecting ends respectively, the position of the driving rotary part and / or the driven rotary part on the rack can be adjusted, and the corresponding universal joint connecting ends and the universal joint connecting shafts can be driven to be arranged in a non-coaxial mode. And different actual operation states of the universal joint can be simulated, so that the operation performance of the universal joint can be judged, and the test result is accurate.

Description

Technical Field

[0001] This utility model relates to the field of universal joint testing technology, specifically to a universal joint angle testing device. Background Technology

[0002] A universal joint is a mechanical connecting device primarily used to transmit torque and rotary motion. It allows relative movement between two shafts within a certain angular range and is typically used to connect two shafts that are not on the same axis. Universal joints are widely used in various mechanical equipment, such as automotive transmission systems, industrial machinery, and welding machine tools.

[0003] A type of universal joint structure in the prior art can be made from Figure 1 The symbols are used to represent the universal joint connecting shaft and the universal joint connecting end. In use, the two connecting ends are connected to two shafts that are not on the same axis. When one shaft rotates, the universal joint can drive the other shaft to rotate, thus realizing the transmission of motion.

[0004] Because universal joints of the same type can differ in characteristics such as swing angle and transmission angle, they must be tested before being used in machine tool processing and other fields. Only those that pass the test can be applied to machine tools. Specifically, the existing testing procedure for universal joints involves rotating the two forks of the universal joint to the maximum angle that allows the universal joint to transmit power normally. Then, the angle between the two forks is measured using an angle gauge to see if it meets the angle requirements of the machine tool application.

[0005] However, the above testing methods can only obtain static results. When using universal joints in machine tools, other influencing factors need to be considered, such as the vibration amplitude of the shaft. If the maximum transmission angle obtained from the above tests is used to select the appropriate universal joint specification, while ignoring the influence of the universal joint on the shaft vibration amplitude, the shaft connected to the universal joint may generate a large vibration amplitude during the use of the machine tool. The occurrence of this vibration amplitude will seriously affect the working efficiency and service life of the machine tool.

[0006] Based on this, we propose a universal joint angle testing device to solve the above problems. Utility Model Content

[0007] The purpose of this invention is to address the problems in the prior art by proposing a universal joint angle testing device. This testing device, through the arrangement of an active rotating part and a driven rotating part, allows the universal joint connection end to be arranged at a corresponding angle with the universal joint connecting shaft for dynamic testing. Simultaneously, by detecting the vibration amplitude of the active rotating part and / or the driven rotating part, the transmission performance of the universal joint connection end and the universal joint connecting shaft at the corresponding angle can be obtained. This application, through this dynamic test, can simulate actual usage conditions, and the test results are relatively accurate.

[0008] To solve the above problems, this utility model provides the following technical solution:

[0009] A universal joint angle testing device includes an active rotating part and a driven rotating part for connecting the connecting ends of two universal joints, and both the active rotating part and the driven rotating part are mounted on a frame; the active rotating part and / or the driven rotating part can be adjusted along the frame so that the universal joint fork angle changes due to the position change of the corresponding rotating part; the testing device also includes a locking member for fixing the position of the corresponding rotating part.

[0010] As a further embodiment of this utility model: the active rotating part and / or the driven rotating part includes a swing cylinder oscillating on the frame, the swing axis of the swing cylinder is perpendicular to its own axis, and one end of the swing cylinder is used for the universal joint connection end to be rotated and installed, and the locking member is used to lock the position of the swing cylinder.

[0011] As a further embodiment of this utility model: the locking component includes two set screws disposed opposite each other on the frame, and the swing cylinder is located between the two set screws, so that after the swing cylinder swings at a corresponding angle, the cooperating feed of the two set screws locks the position of the swing cylinder.

[0012] As a further aspect of this invention, the testing device also includes a bearing. The outer ring of the bearing is fixedly disposed at one end of the swing cylinder, and the inner ring of the bearing is used for installation of the universal joint connection end, so as to realize the rotational installation of the swing cylinder and the universal joint connection end.

[0013] As a further embodiment of this utility model: two protruding columns are fixedly provided on the outside of the swing cylinder, and two adapter blocks are provided on the frame for mounting the two protruding columns respectively. The swing cylinder is mounted on the frame by rotating around the two protruding columns.

[0014] As a further embodiment of this utility model: both set screws are mounted on the frame by means of the same corresponding adapter block.

[0015] As a further embodiment of this utility model: a follower block is fixedly provided on the outside of the swing cylinder, and the follower block is located between two set screws. The position of the swing cylinder is locked by the pressure between the two set screws and the corresponding follower block.

[0016] As a further aspect of this invention, the testing device also includes a drive source mounted on the frame, which is used to drive the universal joint connection end on the active or driven rotating part to rotate.

[0017] As a further embodiment of this utility model, the driving source is a power motor.

[0018] As a further aspect of this invention, the testing device also includes a detection element for sensing the vibration amplitude of the active rotating part and / or the driven rotating part.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By setting up the active and driven rotating parts, the active and driven rotating parts can be used to rotate the two universal joint connection ends for installation. The positions of the active and / or driven rotating parts on the frame are adjustable, which can drive the corresponding universal joint connection end to be arranged non-coaxially with the universal joint connection shaft. That is, different operating states of the universal joint can be simulated, thereby judging the operating performance and stability of the universal joint, including whether there are abnormal noises, vibrations, etc., and the test results are accurate.

[0021] 2. By setting up the swing cylinder, the swing cylinder can, on the one hand, rely on the rotation of the two protruding columns to drive the universal joint connecting end on it to be distributed at a corresponding angle with the universal joint connecting shaft. On the other hand, one end of it can be used for the universal joint connecting end to be rotated and installed, ensuring the high efficiency of the testing work.

[0022] 3. By setting the locking mechanism, after the swing cylinder drives the universal joint connection end to adjust to the corresponding position, the swing cylinder can be stably clamped and limited by rotating the two set screws to feed, which means locking the position of the universal joint connection end on the swing cylinder and ensuring that the universal joint connection end and the universal joint connection shaft maintain a stable non-coaxial arrangement.

[0023] 4. By setting up the detection components, a vibration amplitude test factor is introduced during the test process. The vibration amplitude of the active rotating part and / or the driven rotating part is tested using the detection components, which can better test the transmission performance of the universal joint and the test results are close to reality.

[0024] 5. By setting the drive source, after the universal joint is assembled via the active rotating part and the driven rotating part, the drive source can drive one of the universal joint connection ends to rotate, thereby realizing the dynamic operation of the entire universal joint, which is convenient to operate. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of a universal joint in existing technology;

[0027] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0028] Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure consisting of the rack section removed in the current state;

[0029] Figure 4 yes Figure 3 A schematic diagram of the structure from another perspective under the condition;

[0030] Figure 5 This is a three-dimensional structural diagram of the swing cylinder and two transition blocks in this utility model;

[0031] Figure 6 This is a three-dimensional structural diagram of the adapter block in this utility model;

[0032] Figure 7 This is a three-dimensional structural diagram of the connection end between the swing cylinder and the universal joint in this utility model;

[0033] Figure 8 This is a schematic diagram of the three-dimensional structure of the pendulum cylinder in this utility model.

[0034] In the diagram: 101, universal joint connecting shaft; 102, universal joint connecting end;

[0035] 1. Frame; 2. Swing cylinder; 3. Set screw; 4. Bearing; 5. Protrusion; 6. Adapter block; 7. Follower block; 8. Drive source. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0037] A universal joint angle testing device includes a frame 1, on which a driving rotating part and a driven rotating part are disposed. The driving rotating part and the driven rotating part are respectively used for rotating and installing two universal joint connection ends 102. Since the two universal joint connection ends 102 have different states in actual use, they can be roughly divided into:

[0038] (1) One of the universal joint connection ends 102 is not coaxial with the universal joint connection shaft 101, and the other universal joint connection end 102 is coaxial with the universal joint connection shaft 101.

[0039] (2) Both universal joint connection ends 102 are not coaxial with the universal joint connection shaft 101.

[0040] Based on the above two scenarios, this application utilizes the cooperation between the driving rotating part and the driven rotating part for adaptation, as detailed below:

[0041] (1) When one universal joint connection end 102 is not coaxial with the universal joint connection shaft 101, and the other universal joint connection end 102 is coaxial with the universal joint connection shaft 101, the position of the active rotating part or the driven rotating part on the frame 1 is set to be adjustable. That is, after the universal joint is assembled using the active rotating part and the driven rotating part, the position of the universal joint connection end 102 on it can be changed by using the adjustable position of the active rotating part or the driven rotating part, so that the universal joint connection end 102 and the universal joint connection shaft 101 are arranged in a non-coaxial state, thereby simulating the working condition under the first case for subsequent testing.

[0042] (2) When both universal joint connection ends 102 are not coaxially arranged with the universal joint connection shaft 101, the positions of the active rotating part and the driven rotating part on the frame 1 are both set to be adjustable. That is, after the universal joint is assembled using the active rotating part and the driven rotating part, the positions of the active rotating part and the driven rotating part can be adjusted together to drive the position of the universal joint connection ends 102 on them to change, so that the universal joint connection ends 102 on the active rotating part and the driven rotating part are not coaxially arranged with the universal joint connection shaft 101, thereby simulating the working condition under the second case for subsequent testing.

[0043] This article takes the first scenario (where the position of the driving or driven rotating part on the frame 1 is adjustable) as an example for explanation, as follows:

[0044] like Figures 2-8 As shown, after assembling the universal joint using the active and driven rotating parts, the position of the universal joint connection end 102 on the active rotating part (or driven rotating part) can be changed by adjusting its position. This causes the universal joint connection end 102 on the driven rotating part (or active rotating part) to rotate, putting the entire universal joint in a dynamic working state. Then, a detection device in the prior art is used to detect and sense the vibration amplitude of the active rotating part (or driven rotating part). By feeding back the vibration amplitude of the active rotating part (or driven rotating part), the transmission performance of the universal joint under this dynamic test can be accurately determined. If the detected vibration amplitude is too large, it indicates that the universal joint performance is poor; if the detected vibration amplitude is within the set threshold range, it indicates that the universal joint performance is good.

[0045] Compared with the static test in the prior art, this application not only conducts dynamic operation simulation test on the universal joint through the active rotating part and the driven rotating part, but also introduces a test factor of vibration amplitude, which can better test the transmission performance of the universal joint and the test results are close to reality.

[0046] It should be noted that the detection components mentioned above are conventional technical means in the prior art. For example, they can be vibration sensors, derivative combinations of vibration sensors, conventional vibration detection modules, etc. Their main function is to detect the vibration amplitude of the active rotating part (or driven rotating part) during the universal joint transmission process.

[0047] like Figures 2-4 As shown, furthermore, in order to facilitate the dynamic operation of the universal joint, a drive source 8 (such as a power motor) can be provided on the frame 1. When the active rotating part (or driven rotating part) is set to be position adjustable, the execution end of the drive source 8 is connected to the universal joint connection end 102 on the driven rotating part (or active rotating part). That is, after one universal joint connection end 102 and the universal joint connection shaft 101 are arranged non-coaxially, the drive source 8 can be used to drive the other universal joint connection end 102 to rotate, thereby realizing the dynamic movement of the universal joint.

[0048] like Figures 4-5 As shown, for the design of the active rotating part (or driven rotating part) on the frame 1 with adjustable position in this application, the active rotating part (or driven rotating part) can be provided to include a swing cylinder 2 rotatably mounted on the frame 1 and a locking member for locking the position of the swing cylinder 2. After the swing cylinder 2 is installed on the frame 1, the swing axis of the swing cylinder 2 is perpendicular to its own axis, and one end of the swing cylinder 2 is used for the universal joint connection end 102 to be rotatably installed. After assembling the universal joint using the active and driven rotating parts, the swing cylinder 2 on the active (or driven) rotating part can be driven to rotate and swing to the corresponding angle. Consequently, the universal joint connecting end 102 on the swing cylinder 2 will also move to the corresponding angle. At this time, the universal joint connecting end 102 and the universal joint connecting shaft 101 are arranged at a corresponding angle. This angle arrangement can be adjusted according to the actual test angle. Then, the swing cylinder 2 is locked using a locking device to fix the angle between the universal joint connecting end 102 and the universal joint connecting shaft 101. When the other universal joint connecting end 102 is driven to rotate, the entire universal joint can be driven to move dynamically.

[0049] like Figures 5-6As shown, the locking mechanism includes two set screws 3 mounted opposite each other on the frame 1. The swing cylinder 2 is located between the two set screws 3, so that after the swing cylinder 2 rotates and swings at a corresponding angle, the two set screws 3 cooperate to lock the position of the swing cylinder 2. Furthermore, a follower block 7 can be fixedly mounted on the outside of the swing cylinder 2, and the follower block 7 is located between the two set screws 3. At this time, the position of the swing cylinder 2 can be locked by the pressure between the two set screws 3 and the corresponding follower block 7. When two protrusions 5 are provided on the outside of the swing cylinder 2, two adapter blocks 6 are provided on the frame 1 for mounting the two protrusions 5 respectively. At this time, the swing cylinder 2 is mounted on the frame 1 by rotating and swinging on the two protrusions 5. At the same time, with the existence of the adapter blocks 6, a set of two set screws 3 can each be mounted on the frame 1 by a corresponding adapter block 6.

[0050] like Figures 7-8 As shown, for the rotatable installation of the universal joint connection end 102 and one end of the swing cylinder 2 in this application, the test device also includes a bearing 4. The outer ring of the bearing 4 is fixedly installed at one end of the swing cylinder 2, and the inner ring of the bearing 4 is used for the installation of the universal joint connection end 102, so as to realize the rotatable installation of the swing cylinder 2 and the universal joint connection end 102. Of course, in order to realize the rotatable installation between the universal joint connection end 102 and the swing cylinder 2, it is not limited to the design of the bearing 4 described above. It can also be other conventional technical means in the prior art. In order to avoid cumbersome writing, it will not be described in detail here.

[0051] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A universal joint angle testing device, characterized in that, The device includes an active rotating part and a driven rotating part for connecting the two universal joint connection ends (102), and both the active rotating part and the driven rotating part are mounted on the frame (1); the active rotating part and / or the driven rotating part can be adjusted along the frame (1) so that the universal joints will change the fork angle due to the position change of the corresponding rotating part; the testing device also includes a locking element for fixing the position of the corresponding rotating part.

2. The universal joint angle testing device according to claim 1, characterized in that, The active rotating part and / or driven rotating part includes a swing cylinder (2) swinging on the frame (1). The swing axis of the swing cylinder (2) is perpendicular to its own axis, and one end of the swing cylinder (2) is used for the universal joint connection end (102) to be rotated and installed. The locking member is used to lock the position of the swing cylinder (2).

3. The universal joint angle testing device according to claim 2, characterized in that, The locking mechanism includes two set screws (3) that are positioned opposite each other on the frame (1). The swing cylinder (2) is located between the two set screws (3) so that after the swing cylinder (2) swings at a corresponding angle, the coordinated feed of the two set screws (3) locks the position of the swing cylinder (2).

4. A universal joint angle testing device according to claim 2 or 3, characterized in that, The testing device also includes a bearing (4), the outer ring of which is fixedly disposed at one end of the swing cylinder (2), and the inner ring of which is used for the installation of the universal joint connection end (102) to realize the rotational installation of the swing cylinder (2) and the universal joint connection end (102).

5. A universal joint angle testing device according to claim 2 or 3, characterized in that, The swing cylinder (2) is fixedly provided with two protruding columns (5) on its exterior, and the frame (1) is provided with two adapter blocks (6) for installing the two protruding columns (5) respectively. The swing cylinder (2) is mounted on the frame (1) by means of the two protruding columns (5).

6. The universal joint angle testing device according to claim 5, characterized in that, Both set screws (3) are mounted on the frame (1) by the same corresponding adapter block (6).

7. A universal joint angle testing device according to claim 3, characterized in that, The swing cylinder (2) is fixedly provided with a follower block (7) on the outside, and the follower block (7) is located between two set screws (3). The position of the swing cylinder (2) is locked by the pressure between the two set screws (3) and the corresponding follower block (7).

8. The universal joint angle testing device according to claim 1, characterized in that, The testing device also includes a drive source (8) mounted on the frame (1), which is used to drive the universal joint connection end (102) on the active rotating part or the driven rotating part to rotate.

9. A universal joint angle testing device according to claim 8, characterized in that, The drive source (8) is a power motor.

10. A universal joint angle testing device according to any one of claims 1-3, characterized in that, The testing apparatus also includes a detection element for sensing the vibration amplitude of the active rotating part and / or the driven rotating part.

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