A multi-group parallel fatigue testing machine
By designing multiple sets of parallel fatigue testing machines, fatigue testing of multiple components can be carried out simultaneously, solving the problems of low efficiency and single contact form of existing equipment, improving testing efficiency and accuracy, and expanding the scope of application.
Patent Information
- Application Number
- CN202210357950.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-04-06
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2042-04-06
AI Technical Summary
Existing fatigue testing equipment mostly performs tests individually, which is time-consuming for low-cycle fatigue testing. Furthermore, most existing research only focuses on simplified contact types and cannot meet the diverse contact forms of actual components.
Design a multi-group parallel fatigue testing machine that uses a power motor to drive a power shaft to move multiple test transverse moving parts, enabling simultaneous fatigue testing of multiple components. Combined with test clamping parts and tensile transmission parts, it can simultaneously apply different frequencies and tensile conditions.
It significantly improves the efficiency and accuracy of fatigue testing, has a wide range of applications, and can simultaneously conduct fatigue tests on multiple components in various contact forms, thus shortening the test cycle.
Smart Images
Figure CN114755121B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of fatigue detection, and more particularly to a multi-group parallel fatigue testing machine. BACKGROUND
[0002] Fatigue causes the component to break down and fail at a stress level far below its structural strength, seriously affecting the service life and service safety of the component, and is the main reason for the significant reduction in the service life of the component. It is called "industrial cancer". The fatigue life test of the material of the key component before being put into service is used to guide the structural design of the component, the development of the processing technology and the selection of the surface strengthening technology, and accurately predict the fatigue life of the component. For ordinary fatigue test, the test equipment and method are relatively fixed, and there are corresponding national standards for reference, such as GB / T 6398-2017 (Metallic Materials - Fatigue Test - Method of Fatigue Crack Propagation), GB / T 12443-2017 (Metallic Materials - Fatigue Test - Method of Torque-Controlled Fatigue Test), GB / T 4337-2015 (Metallic Materials - Fatigue Test - Method of Rotating Bending), GB / T 26077-2010 (Metallic Materials - Fatigue Test - Method of Axial Strain-Controlled Fatigue Test), GB / T 3075-2008 (Metallic Materials - Fatigue Test - Method of Axial Force-Controlled Fatigue Test), GB / T 15248-2008 (Metallic Materials - Fatigue Test - Method of Axial Constant-Amplitude Low-Cycle Fatigue Test) and GB / T 12443-2007 (Metallic Materials - Fatigue Test - Method of Torsional Stress Fatigue Test).
[0003] However, the fatigue test of the component in the existing literature is mostly carried out individually, especially for low-cycle fatigue test, which often needs to be tested for several weeks in order to obtain a group of test data, which seriously affects the test progress. And the existing fatigue test research is mostly only for simplified contact types such as cylindrical-plane contact, plane-plane contact and cylindrical-cylindrical contact, which does not conform to the widely existing component contact form in actual application. SUMMARY
[0004] In order to overcome the above defects, the present application provides a multi-group parallel fatigue testing machine, which specifically adopts the following technical scheme:
[0005] A multi-group parallel fatigue testing machine, comprising:
[0006] A test clamping piece, comprising a clamping seat, a test transverse fixing piece, a test transverse moving piece and a component clamping piece, the test transverse fixing piece and the test transverse moving piece are arranged on the clamping seat, and the component clamping piece is arranged on the test transverse fixing piece and the test transverse moving piece;
[0007] A test power element is arranged on the test clamping element, which comprises a power motor, a power shaft, a stabilizing block and a tension transmission element, the power motor and the stabilizing block are arranged on the clamping seat, the power shaft is arranged on the power motor, and the tension transmission element is arranged on the power shaft.
[0008] The power motor simultaneously pulls a plurality of test lateral moving elements on the clamping seat through the power shaft to swing, thereby sequentially and simultaneously applying tension to a plurality of components to be tested installed on a plurality of component clamping elements.
[0009] Preferably, a moving groove is arranged on the clamping seat, and a support shaft is horizontally and fixedly arranged in the moving groove; the test lateral fixing element comprises a lateral fixing frame and a first vertical moving element, a first vertical sliding long-hole through-hole is arranged on one side surface of the lateral fixing frame, a first vertical driving long-hole through-hole is arranged on the other side surface of the lateral fixing frame, the first vertical driving long-hole through-hole is through the first vertical sliding long-hole through-hole, and one end of the lateral fixing frame is vertically and fixedly arranged on the clamping seat.
[0010] Preferably, the first vertical moving element comprises a first vertical moving motor, a first vertical screw rod, a first vertical transmission block and a first vertical moving shaft, the first vertical moving motor is arranged on the lateral fixing frame, the first vertical screw rod is arranged in the first vertical driving long-hole through-hole, and a rotating shaft of the first vertical moving motor is connected with the first vertical screw rod; the first vertical transmission block is provided with a first transmission through-hole, the first vertical transmission block is sleeved on the first vertical screw rod through the first transmission through-hole, and the first vertical screw rod is matched with a first internal thread in the first transmission through-hole; the first vertical moving shaft is fixedly arranged on the first vertical transmission block, and the first vertical moving shaft penetrates out of the first vertical sliding long-hole through-hole.
[0011] Preferably, the test lateral moving element comprises a lateral moving frame and a second vertical moving element, a second vertical sliding long-hole through-hole is arranged on one side surface of the lateral moving frame, a second vertical driving long-hole through-hole is arranged on the other side surface of the lateral moving frame, the second vertical driving long-hole through-hole is through the second vertical sliding long-hole through-hole, and a first bearing is embedded in one end of the lateral moving frame, and the lateral moving frame is sleeved on the support shaft through the first bearing.
[0012] Preferably, the second vertical moving part comprises a second vertical moving motor, a second vertical screw rod, a second vertical transmission block and a second vertical moving shaft, the second vertical screw rod is embedded in the second vertical driving long strip through hole, the second vertical moving motor is arranged on the other end of the transverse moving frame, and the rotating shaft of the second vertical moving motor is connected with the second vertical screw rod; the second vertical transmission block is provided with a second transmission through hole, the second vertical transmission block is sleeved on the second vertical screw rod through the second transmission through hole, and the second vertical screw rod is matched with the second internal thread in the second transmission through hole; the second vertical moving shaft is fixedly arranged on the second vertical transmission block, and the second vertical moving shaft penetrates out of the second vertical sliding long strip through hole.
[0013] Preferably, the component clamping part comprises a first clamping part, a second clamping part and a grating ruler, the first clamping part is arranged on the test transverse fixing part, the second clamping part is arranged on the test transverse moving part, and the grating ruler is arranged on the first clamping part and the second clamping part; the first clamping part comprises a connecting groove, a tension sensor, a clamping seat and a component pressing plate, the connecting groove is in the shape of a right angle groove, second bearings are arranged on the two side walls of the connecting groove, the connecting groove is sleeved on the two ends of the first vertical moving shaft through the two second bearings one by one, and the clamping seat is provided with a T-shaped groove.
[0014] Preferably, the second clamping part is the same in structure as the first clamping part, the second bearings of the second clamping part are arranged on the two ends of the second vertical moving shaft one by one, the grating ruler comprises a grating body and a code scanning head, the grating body is horizontally arranged on the first clamping part, the code scanning head is horizontally arranged on the second clamping part, and the code scanning head is matched with the grating body.
[0015] Preferably, a plurality of sets of test clamping parts are arranged, the test clamping parts are matched with the test power parts, and fatigue tests can be simultaneously conducted on a plurality of clamped components.
[0016] Preferably, the power shaft is in the shape of a crankshaft, a plurality of link shaft journals are arranged on the power shaft at equal intervals, the horizontal distance between the axis of each link shaft journal and the axis of the power shaft is different, and the front end of the power shaft is horizontally fixedly connected with the rotating shaft of the power motor; a plurality of third bearings are sleeved on the power shaft shaft, and the plurality of third bearings are arranged on the stabilizing blocks one by one.
[0017] Preferably, the tension transmission member comprises fourth bearings, relay rods, relay springs and relay blocks, the fourth bearings are sleeved on the connecting rod journals one by one, one end of the relay rod is connected to the fourth bearing, and the relay rods are connected to the fourth bearings one by one; one end of the relay spring is connected to the other end of the relay rod, and the relay springs are connected to the relay rods one by one; the relay block is arranged on the other end of the transverse moving frame, and the relay block is connected to the other end of the relay spring, one end of the relay block corresponds to the transverse moving frame one by one, and the other end of the relay block corresponds to the relay spring one by one.
[0018] The present application at least includes the following advantages:
[0019] 1) The design idea of the multi-group parallel fatigue testing machine is novel, the structure is simple, the test application range is high, the test precision is high, the fatigue testing efficiency of the component can be significantly improved by simultaneously testing multiple groups of components;
[0020] 2) The multi-group parallel fatigue testing machine is provided with a test transverse fixing member, a test transverse moving member, a component clamping member, a power motor and a power shaft, a plurality of connecting rod journals are arranged on the power shaft, the horizontal distance between the axis of each connecting rod journal and the axis of the power shaft is different, the power motor can drive the test transverse moving members to apply different fixed tensions with the same frequency to the components through the connecting rod journals; the test transverse fixing member and the test transverse moving member can adjust the tension of the component by changing the horizontal height of the component clamping member, thereby further improving the fatigue testing efficiency, application range and test precision of the component.
[0021] Other advantages, objects, and features of the present application will be apparent to those skilled in the art from the following description, and will be understood by those skilled in the art. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is a front view of the multi-group parallel fatigue testing machine of the present application;
[0023] Figure 2 It is a top view of the multi-group parallel fatigue testing machine of the present application;
[0024] Figure 3 It is a right side front view of the multi-group parallel fatigue testing machine of the present application;
[0025] Figure 4 It is a left side perspective structural schematic view of the multi-group parallel fatigue testing machine of the present application;
[0026] Figure 5 It is a right side perspective structural schematic view of the multi-group parallel fatigue testing machine of the present application;
[0027] Figure 6 Figure 3 is a schematic view of the rear side structure of the multi-group parallel fatigue testing machine of the present application.
[0028] Wherein: 1-support seat, 2-support shaft, 3-horizontal fixed frame, 4-first vertical sliding long hole, 6-first vertical moving motor, 7-first vertical screw, 8-first vertical transmission block, 9-first vertical moving shaft, 10-horizontal moving frame, 11-second vertical moving motor, 14-second vertical moving shaft, 15-connection slot, 16-tension sensor, 17-clamping seat, 18-component pressing plate, 19-grating body, 20-code scanning head, 21-power motor, 22-power shaft, 23-stabilizing block, 24-link shaft journal, 25-third bearing, 26-fourth bearing, 27-relay rod, 28-relay spring, 29-relay block, 30-component. DETAILED DESCRIPTION
[0029] The technical solutions of the present application will be described in detail below with reference to the accompanying drawings by way of examples. It should be noted that the descriptions of these examples are used to help understand the present application, but do not constitute a limitation of the present application.
[0030] The term "and / or" in this paper is only a description of the association between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which means that there are three cases of A alone, B alone, and A and B together. The term "and" in this paper is used to describe another relationship between the associated objects, which means that there can be two kinds of relationships, for example, A / and B, which means that there are two cases of A alone and A and B together. In addition, the character " / " in this paper generally represents a "or" relationship between the associated objects before and after it.
[0031] According to Figures 1-6As shown, a multi-group parallel fatigue testing machine comprises a testing clamping part and a testing power part connected with the testing clamping part. The testing clamping part comprises a support base 1, a testing horizontal fixing part and a testing horizontal moving part both arranged on the support base 1, and a component clamping part arranged on the testing horizontal fixing part and the testing horizontal moving part. The support base 1 is provided with a moving groove, and a support shaft 2 is horizontally fixedly arranged in the moving groove and used for installing the testing horizontal moving part. The testing horizontal fixing part comprises a horizontal fixing frame 3 arranged on the support base 1 and a first vertical moving part arranged on the horizontal fixing frame 3. The horizontal fixing frame 3 is generally in the shape of a rectangular column, and a first vertical sliding long-hole 4 is arranged on the front and back sides of the horizontal fixing frame 3. The length of the first vertical sliding long-hole 4 is less than the length of the horizontal fixing frame 3, and a first vertical driving long-hole is arranged on the right side of the horizontal fixing frame 3 and penetrates through the first vertical sliding long-hole 4. One end of the horizontal fixing frame 3 is vertically fixedly arranged on the support base 1.
[0032] The first vertical moving part comprises a first vertical moving motor 6, a first vertical screw rod 7, a first vertical transmission block 8 and a first vertical moving shaft 9. The first vertical moving motor 6 and the first vertical screw rod 7 are both arranged on the horizontal fixing frame 3, the first vertical transmission block 8 is arranged on the first vertical screw rod 7, and the first vertical moving shaft 9 is arranged on the first vertical transmission block 8. One end of the first vertical screw rod 7 is embedded in one end of the first vertical driving long-hole, and the other end of the first vertical screw rod 7 penetrates through the other end of the horizontal fixing frame 3, so that the first vertical screw rod 7 can rotate circumferentially in the horizontal fixing frame 3 while being axially limited on the horizontal fixing frame 3. The first vertical moving motor 6 is arranged on the other end of the horizontal fixing frame 3, and the rotating shaft of the first vertical moving motor 6 is connected with the other end of the first vertical screw rod 7. The first vertical transmission block 8 is provided with a first transmission hole, and a first internal thread is arranged in the first transmission hole. The first vertical transmission block 8 is sleeved on the first vertical screw rod 7 through the first transmission hole, and the first internal thread is engaged with the first vertical screw rod 7. The first vertical moving shaft 9 is fixedly arranged on the first vertical transmission block 8 and penetrates out of the first vertical sliding long-hole 4. When the first vertical moving motor 6 rotates forward, the first vertical transmission block 8 and the first vertical moving shaft 9 are driven by the first vertical screw rod 7 to move vertically along the first vertical sliding long-hole 4.
[0033] The test transverse moving part comprises a transverse moving frame 10 and a second vertical moving part, the transverse moving frame 10 is arranged on the support base 1, and the second vertical moving part is arranged on the transverse moving frame 10. The transverse moving frame 10 is generally in the shape of a rectangular column, second vertical sliding long strip through holes are arranged on the front and back sides of the transverse moving frame 10, the length of the second vertical sliding long strip through holes is less than the length of the transverse moving frame 10, a second vertical driving long strip through hole is arranged on the left side of the transverse moving frame 10, and the second vertical driving long strip through hole is through the second vertical sliding long strip through hole. One end of the transverse moving frame 10 is embedded with a first bearing, and the transverse moving frame 10 is sleeved on the support shaft 2 through the first bearing. Therefore, the transverse moving frame 10 can swing around the support shaft 2 through the first bearing, so as to perform a fatigue test on a test piece installed on the component clamping part.
[0034] The second vertical moving part comprises a second vertical moving motor 11, a second vertical screw rod, a second vertical transmission block and a second vertical moving shaft 14, the second vertical moving motor 11 and the second vertical screw rod are arranged on the transverse moving frame 10, the second vertical transmission block is arranged on the second vertical screw rod, and the second vertical moving shaft 14 is arranged on the second vertical transmission block. One end of the second vertical screw rod is embedded in one end of the second vertical driving long strip through hole, the other end of the second vertical screw rod penetrates through the other end of the transverse moving frame 10, so that the second vertical screw rod can rotate circumferentially in the transverse moving frame 10, and the second vertical screw rod is limited in the axial direction on the transverse moving frame 10. The second vertical moving motor 11 is arranged on the other end of the transverse moving frame 10, and the rotating shaft of the second vertical moving motor 11 is connected with the second vertical screw rod. A second transmission through hole is arranged on the second vertical transmission block, a second internal thread is arranged in the second transmission through hole, the second vertical transmission block is sleeved on the second vertical screw rod through the second transmission through hole, and the second internal thread is matched with the second vertical screw rod. The second vertical moving shaft 14 is fixedly arranged on the second vertical transmission block, and the second vertical moving shaft 14 penetrates out of the second vertical sliding long strip through hole. When the second vertical moving motor 11 rotates forward, the second vertical transmission block and the second vertical moving shaft 14 are driven by the second vertical screw rod to move vertically along the second vertical sliding long strip through hole.
[0035] The component clamping piece comprises a first clamping piece, a second clamping piece and a grating ruler, the first clamping piece is arranged on the test transverse fixing piece, the second clamping piece is arranged on the test transverse moving piece, and the grating ruler is arranged on the first clamping piece and the second clamping piece. The first clamping piece comprises a connecting groove 15, a tension sensor 16, a clamping seat 17 and a component pressing plate 18, the connecting groove 15 is arranged on the first vertical moving piece, the tension sensor 16 is arranged on the connecting groove 15, the clamping seat 17 is arranged on the tension sensor 16, and the component pressing plate 18 is arranged on the clamping seat 17. The connecting groove 15 is in the shape of a right-angle groove, second bearings are arranged on the two side walls of the connecting groove 15, the connecting groove 15 is correspondingly sleeved on the two ends of the first vertical moving shaft 9 through the second bearings on the two side walls, so that the connecting groove 15 can rotate around the first vertical moving shaft 9. The clamping seat 17 is in the shape of a rectangular block as a whole, a T-shaped groove is arranged on the clamping seat 17, and the T-shaped groove is used for fastening a component 30. The component 30 to be subjected to fatigue test is in the shape in actual application, one end of the component 30 is embedded in the T-shaped groove of the first clamping piece, and the other end of the component 30 is embedded on the second clamping piece. The component pressing plate 18 is in the shape of a T-shaped plug, the component pressing plate 18 is fastened on the clamping seat 17 through screws, and one end of the component pressing plate 18 is inserted into the T-shaped groove to press the component 30, thereby improving the stability of the component 30 during fatigue test.
[0036] The second clamping piece is the same in structure as the first clamping piece, the connecting groove 15 of the second clamping piece is arranged on the two ends of the second vertical moving shaft 14, so that the connecting groove 15 of the second clamping piece can rotate around the second vertical moving shaft 14. The grating ruler comprises a grating body 19 and a code scanning head 20, the grating body 19 is horizontally fixedly arranged on the connecting groove 15 of the first clamping piece, the code scanning head 20 is horizontally fixedly arranged on the connecting groove 15 of the second clamping piece, and the code scanning head 20 cooperates with the grating body 19.
[0037] The test clamping piece is arranged in three sets, the test clamping piece cooperates with the test power piece, and fatigue test can be simultaneously performed on three components 30 clamped.
[0038] The test power component comprises a power motor 21, a power shaft 22, a stabilizing block 23 and a tension transmission component, the power motor 21 and the stabilizing block 23 are arranged on the clamping seat 17, the power shaft 22 is arranged on the power motor 21, and the tension transmission component is arranged on the power shaft 22. The power shaft 22 is in the shape of a crankshaft, and three sections of connecting rod journals 24 are arranged on the power shaft 22 at equal intervals, the horizontal distance between the axis of each section of the connecting rod journal 24 and the axis of the power shaft 22 is different, so as to apply tension with the same frequency and different strokes to three sets of test power components respectively. The front end of the power shaft 22 is horizontally fixedly connected to the rotating shaft of the power motor 21. Four third bearings 25 are sleeved on the power shaft 22, and the four third bearings 25 are arranged on the stabilizing block 23 one by one in correspondence, so as to improve the axial stability of the power shaft 22 during rotation.
[0039] The tension transmission component comprises a fourth bearing 26, a relay rod 27, a relay spring 28 and a relay block 29, the fourth bearing 26 is arranged on the power shaft 22, the relay rod 27 is arranged on the fourth bearing 26, the relay spring 28 is arranged on the relay rod 27, and the relay block 29 is arranged on the transverse moving frame 10. The fourth bearing 26 is provided with three, and the three fourth bearings 26 are sleeved on the three connecting rod journals 24 one by one in correspondence, one end of the relay rod 27 is fixedly connected to the fourth bearing 26, the relay rod 27 is provided with three, and the three relay rods 27 are connected to the three fourth bearings 26 one by one in correspondence. One end of the relay spring 28 is fixedly connected to the other end of the relay rod 27, the relay spring 28 is provided with three, and the three relay springs 28 are connected to the three relay rods 27 one by one in correspondence. The relay block 29 is arranged on the other end of the transverse moving frame 10, and the relay block 29 is connected to the other end of the relay spring 28, the relay block 29 is provided with three, one end of the three relay blocks 29 corresponds to the three transverse moving frames 10 one by one, and the other end of the three relay blocks 29 corresponds to the three relay springs 28 one by one.
[0040] When the power motor 21 starts, it will drive the power shaft 22 to rotate in the third bearing 25, and the power shaft 22 will drive the other end of the lateral moving frame 10 to rotate around the support shaft 2 by a corresponding amplitude through the connecting rod shaft neck 24, the fourth bearing 26, the relay rod 27, the relay spring 28 and the relay block 29, so as to make the lateral moving frame 10 pull the second clamping piece to move to the left side to exert a pulling force on the component 30. Since the axes of the three connecting rod shaft necks 24 are not the same as the axis of the power shaft 22, and the three connecting rod shaft necks 24 exert different pulling forces on the three lateral moving frames 10 through the fourth bearing 26, the relay rod 27, the relay spring 28 and the relay block 29, the same frequency and different fixed pulling force test conditions can be simultaneously exerted on the three components 30, thereby significantly improving the fatigue test efficiency. In addition, the length of the deformed component 30 under the pulling force can be changed by the first and second vertical moving pieces, and the pulling force value exerted on the component 30 can be adjusted up and down. For example, when the power motor 21 exerts a fixed pulling force of 1 on one component 30 through the connecting rod shaft neck 24 and the pulling force transmission piece, the horizontal height of the component clamping seat 17 can be adjusted by the first and second vertical moving pieces, so that the pulling force value can be adjusted within the range of 1±0.5, thereby improving the application range and test accuracy when simultaneously performing fatigue test on multiple components 30.
[0041] Although the embodiments of the present application have been disclosed as above, they are not limited to the application listed in the specification and the embodiments, and can be fully applied to various fields suitable for the present application, and additional modifications can be easily realized by those skilled in the art, and therefore the present application is not limited to specific details and the figures shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.
Claims
1. A multi-group parallel fatigue testing machine, characterized in that, include: A test clamping component includes a clamping base, a test lateral fixing component, a test lateral moving component, and a component clamping component. The test lateral fixing component and the test lateral moving component are both disposed on the clamping base, and the component clamping component is disposed on the test lateral fixing component and the test lateral moving component. The test power component, which is mounted on the test clamping component, includes a power motor, a power shaft, a stabilizing block, and a tension transmission component. The power motor and the stabilizing block are both mounted on the clamping base, the power shaft is mounted on the power motor, and the tension transmission component is mounted on the power shaft. Wherein: the power motor pulls multiple test lateral moving parts to swing on the clamping seat through the power shaft, thereby applying tension to multiple components to be tested installed on multiple component clamping parts one by one; The power shaft is crankshaft shaped, and multiple connecting rod journals are evenly spaced on the power shaft. The horizontal distance between the axis of each connecting rod journal and the axis of the power shaft is different. The front end of the power shaft is horizontally fixedly connected to the shaft of the power motor. Multiple third bearings are mounted on the shaft of the power shaft, and the multiple third bearings are fixedly mounted on the stabilizing block one by one.
2. The multi-group parallel fatigue testing machine according to claim 1, characterized in that, The clamping base is provided with a movable groove, and a support shaft is horizontally fixed in the movable groove; the test transverse fixing component includes a transverse fixing frame and a first vertical moving component, the transverse fixing frame is provided with a first vertical sliding elongated through hole on one side, and a first vertical driving elongated through hole is provided on the other side of the transverse fixing frame, the first vertical driving elongated through hole communicating with the first vertical sliding elongated through hole; one end of the transverse fixing frame is vertically fixed on the clamping base.
3. The multi-group parallel fatigue testing machine according to claim 2, characterized in that, The first vertical moving component includes a first vertical moving motor, a first vertical screw, a first vertical transmission block, and a first vertical moving shaft. The first vertical moving motor is mounted on the horizontal fixed frame. The first vertical screw is disposed in the first vertical driving elongated through hole, and the shaft of the first vertical moving motor is connected to the first vertical screw. The first vertical transmission block is provided with a first transmission through hole, and the first vertical transmission block is fitted onto the first vertical screw through the first transmission through hole. The first vertical screw engages with the first internal thread in the first transmission through hole. The first vertical moving shaft is fixedly mounted on the first vertical transmission block and extends through the first vertical sliding elongated through hole.
4. The multi-group parallel fatigue testing machine according to claim 3, characterized in that, The test lateral moving component includes a lateral moving frame and a second vertical moving component. The lateral moving frame has a second vertical sliding elongated through hole on one side and a second vertical driving elongated through hole on the other side. The second vertical driving elongated through hole communicates with the second vertical sliding elongated through hole. A first bearing is embedded at one end of the lateral moving frame, and the lateral moving frame is mounted on the support shaft through the first bearing.
5. The multi-group parallel fatigue testing machine according to claim 4, characterized in that, The second vertical moving component includes a second vertical moving motor, a second vertical screw, a second vertical transmission block, and a second vertical moving shaft. The second vertical screw is embedded in the second vertical drive elongated through hole. The second vertical moving motor is disposed on the other end of the horizontal moving frame, and the shaft of the second vertical moving motor is connected to the second vertical screw. The second vertical transmission block is provided with a second transmission through hole, and the second vertical transmission block is fitted onto the second vertical screw through the second transmission through hole. The second vertical screw is engaged with the second internal thread in the second transmission through hole. The second vertical moving shaft is fixedly disposed on the second vertical transmission block, and the second vertical moving shaft passes through the second vertical sliding elongated through hole.
6. The multi-group parallel fatigue testing machine according to claim 5, characterized in that, The component clamping device includes a first clamping device, a second clamping device, and a grating ruler. The first clamping device is disposed on the test transverse fixing device, the second clamping device is disposed on the test transverse moving device, and the grating ruler is disposed on the first clamping device and the second clamping device. The first clamping device includes a connecting groove, a tension sensor, a clamping seat, and a component pressure plate. The connecting groove is a right-angled groove, and a second bearing is disposed on both sides of the connecting groove. The connecting groove is fitted onto both ends of the first vertical moving shaft one by one through two second bearings. The clamping seat is provided with a T-shaped groove.
7. The multi-group parallel fatigue testing machine according to claim 6, characterized in that, The second clamping member has the same structure as the first clamping member. The second bearings of the second clamping member are respectively arranged at both ends of the second vertical moving shaft. The grating ruler includes a grating body and a scanning terminal. The grating body is horizontally arranged on the first clamping member, and the scanning terminal is horizontally arranged on the second clamping member. The scanning terminal cooperates with the grating body.
8. The multi-group parallel fatigue testing machine according to claim 7, characterized in that, Multiple sets of the test clamps are provided. The test clamps cooperate with the test power components to simultaneously perform fatigue tests on multiple clamped components.
9. The multi-group parallel fatigue testing machine according to claim 8, characterized in that, The tension transmission component includes a fourth bearing, a relay rod, a relay spring, and a relay block. Multiple fourth bearings are sequentially mounted on multiple connecting rod journals. One end of each relay rod is connected to a fourth bearing, and multiple relay rods are sequentially connected to multiple fourth bearings. One end of each relay spring is connected to the other end of a relay rod, and multiple relay springs are sequentially connected to multiple relay rods. The relay block is disposed on the other end of the transverse moving frame, and the other end of each relay block is connected to the other end of a relay spring. One end of each relay block corresponds to one of the multiple transverse moving frames, and the other end of each relay block corresponds to one of the multiple relay springs.
Citation Information
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