Torsion bar testing device with variable working angle
By designing a variable working angle adjustment module in the torque rod test device, the installation and disassembly of the pads are realized without the need for pads, and the problems of lifting difficulties and thread damage in the prior art are solved, and the efficiency and reliability of the test are improved.
Patent Information
- Application Number
- CN202421198474.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-29
AI Technical Summary
During loading or life test, existing torsion rod testing devices are difficult to lift and require multiple pads of different specifications, resulting in a large replacement workload, and the thread damage is easily caused by disassembly and assembly of fasteners multiple times.
A variable working angle torsion rod testing device including a fixed base, a loading module, a first adjustment module and a second adjustment module is designed, and the radial position between the loading module and the driving module is adjusted through the first adjustment module, and the second adjustment module is used to adjust the radial position between the loading module and the driving module. The adjustment module adjusts the axial position to realize the installation and disassembly of the pad without the need for pads, and uses a lead screw nut structure to achieve pole-free adjustment.
The installation and testing process of torsion rods is simplified, the lifting difficulty and replacement workload is reduced, the reliability and efficiency of the test are improved, and the thread damage is avoided.
Smart Images
Figure CN222353509U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a torsion bar testing device, in particular to a torsion bar testing device with a variable working angle. Background Art
[0002] Torsion bar 01 has a wide range of applications in areas where force needs to be applied or adjusted, and plays an important role in improving production efficiency and work quality.
[0003] like Figure 1 As shown, in order to ensure the reliability of the torsion bar 01 during use, it is necessary to perform a loading or life test on it. When performing a loading or life test on the existing torsion bar 01, it is often necessary to simulate its actual working posture, and the universal joints 02 at both ends of the torsion bar 01 need to be rotated to a certain working angle (such as: 2°).
[0004] At the same time, in order to meet the test requirements, such as Figure 2 As shown, the existing test device usually uses a pad 03 to raise the driving or loading end to a certain height, and moves axially to adapt to the installation of torsion bars 01 of different lengths, so that a height difference is generated at both ends of the torsion bar 01.
[0005] Its main disadvantages:
[0006] 1) The overall lifting of the driving or loading end is difficult when it is elevated;
[0007] 2) The length and working angle of the torsion bar are different, which often leads to different thickness and size of the pads. Multiple pads are required to correspond to the torsion bar one by one, which results in a large number of pads and a large replacement workload;
[0008] 3) Repeated disassembly and assembly of fasteners such as screws and bolts can easily cause thread damage. Utility Model Content
[0009] The purpose of the utility model is to solve the technical problems that the existing test device is difficult to hoist when the driving or loading end is raised; the specifications of the pads are different and the number is large according to the different working angles of the torsion bar length, and the replacement workload is large; the fasteners need to be disassembled and assembled many times during testing, which easily causes thread damage, and to provide a torsion bar testing device with a variable working angle.
[0010] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0011] A torsion bar testing device with variable working angle, which is special in that:
[0012] It includes a fixed base, a loading module, a first adjusting module, a driving module and a second adjusting module;
[0013] The loading module is installed on the adjusting end of the first adjusting module, and the fixing end of the first adjusting module is installed on the fixing base;
[0014] The driving module is installed on the adjusting end of the second adjusting module, and the fixing end of the second adjusting module is installed on the fixing base;
[0015] The universal joints at both ends of the torsion bar to be tested are respectively installed at the working ends of the loading module and the driving module;
[0016] The adjustment direction of the first adjustment module is along the horizontal direction and parallel to the radial direction of the torsion bar, and is used to adjust the radial relative position between the loading module and the driving module, thereby adjusting the angles of the universal joints at both ends of the torsion bar;
[0017] The adjustment direction of the second adjustment module is parallel to the axial direction of the torsion bar, and is used to adjust the axial relative position between the loading module and the driving module, thereby meeting the installation requirements of torsion bars of different lengths.
[0018] Further, the first adjustment module includes a first linear slide rail, a first linear slider and a first driving locking unit;
[0019] The first linear slide is the fixed end of the first adjustment module, which is installed on the fixed base, and its setting direction is along the horizontal direction and parallel to the radial direction of the torsion bar; the first linear slider is the adjustment end of the first adjustment module, and is slidably installed on the first linear slide; the loading module is installed on the first linear slider; the first drive locking unit is installed on the fixed base, and its output direction is parallel to the setting direction of the first linear slide, and the output end is connected to the loading module, and is used to adjust the radial relative position between the loading module and the driving module;
[0020] The second adjustment module includes a second linear slide rail, a second linear slider, and a second drive locking unit;
[0021] The second linear slide rail is the fixed end of the second adjustment module, which is installed on the fixed base and is set parallel to the axial direction of the torsion bar; the second linear slider is the adjustment end of the second adjustment module, which is slidably installed on the second linear slide rail; the driving module is installed on the second linear slider; the second drive locking unit is installed on the fixed base, and its output direction is parallel to the setting direction of the second linear slide rail. The output end is connected to the driving module for adjusting the axial relative position between the loading module and the driving module.
[0022] Further, the number of the first linear slide rail and the number of the second linear slide rail are both two;
[0023] The two first linear slide rails are arranged in a horizontal direction and parallel to the radial direction of the torsion bar, and a first interval is arranged between the two; the two second linear slide rails are arranged in parallel to the axial direction of the torsion bar, and a second interval is arranged between the two;
[0024] The first driving locking unit is arranged between the two first linear slide rails, and the second driving locking unit is arranged between the two second linear slide rails;
[0025] The first linear slider and the second linear slider are both in two groups, each group including at least one first linear slider or second linear slider;
[0026] The two groups of first linear slides are respectively slidably mounted on the two first linear slide rails, and the loading module is mounted on the two groups of first linear slides; the two groups of second linear slides are respectively slidably mounted on the two second linear slide rails, and the driving module is mounted on the two groups of second linear slides.
[0027] Furthermore, the first drive locking unit and the second drive locking unit are manually driven locking units, electrically driven locking units, hydraulically driven locking units or pneumatically driven locking units.
[0028] Further, the first driving locking unit includes a first screw, a first nut, a first driving member and two first bearings;
[0029] The axial direction of the first lead screw is in the horizontal direction and parallel to the radial direction of the torsion bar; the first nut is threadedly sleeved on the first lead screw, and the loading module is installed on the first nut; the driving end of the first driving member is installed on one end of the first lead screw; the rotating ends of the two first bearings are fixedly sleeved on the circumferential sides of the two ends of the first lead screw, and the fixed ends are installed on the fixed base;
[0030] The second driving and locking unit comprises a second lead screw, a second lead nut, a second driving member and two second bearings;
[0031] The axial direction of the second lead screw is parallel to the axial direction of the torsion bar; the second nut is threadedly mounted on the second lead screw, and the loading module is installed on the second nut; the driving end of the second driving member is installed on one end of the second lead screw; the rotating ends of the two second bearings are fixedly mounted on the circumferential sides of the two ends of the second lead screw, and the fixed ends are installed on the fixed base.
[0032] Furthermore, the first driving member and the second driving member are both driving hand wheels, and the threads on the first lead screw and the second lead screw are trapezoidal threads with a tooth angle of 30°.
[0033] Furthermore, the first driving member and the second driving member are both driving motors; the driving motors are mounted on a fixed base.
[0034] Furthermore, the first drive locking unit and the second drive locking unit each further include a stop ring and a shaft end retaining ring;
[0035] The stop ring of the first drive locking unit is rotatably mounted on one end of the first lead screw and connected to the corresponding first bearing; the shaft end retaining ring of the first drive locking unit is rotatably mounted on the other end of the first lead screw and connected to the corresponding first bearing;
[0036] The retaining ring of the second driving locking unit is rotatably mounted on one end of the second lead screw and connected to the corresponding second bearing; the shaft end retaining ring of the second driving locking unit is rotatably mounted on the other end of the second lead screw and connected to the corresponding second bearing.
[0037] The beneficial effects of the utility model are:
[0038] 1. The utility model realizes the adjustment of the radial relative position between the loading module and the driving module by the first adjustment module, and realizes the adjustment of the axial relative position between the loading module and the driving module by the second adjustment module. Therefore, during the test, there is no need to hoist the loading module or the driving module, and there is no need to use a cushion block. At the same time, there is no need to disassemble and assemble the loading module or the driving module. The installation needs of torsion bars of different lengths can be met, and the needs of different working angles during the torsion bar test can be met. The adjustment method is simple and reliable.
[0039] 2. The first adjustment module and the second adjustment of the utility model adopt a screw nut structure, which can realize stepless adjustment with high adjustment accuracy and can meet the testing needs under different conditions.
[0040] 3. The first adjustment module and the second adjustment module of the utility model are both manually driven, without the need for other electronic control devices. Only manual rotation of the hand wheel is required to meet the test requirements, saving time and effort and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0041] Figure 1 is a structural schematic diagram of an existing torsion bar, wherein a is a structural schematic diagram of an initial state, and b is a structural schematic diagram of a test state;
[0042] Figure 2 Schematic diagram of the structure of the existing torsion bar test device, wherein a is a schematic diagram of the structure in the initial state, and b is a schematic diagram of the structure in the test state;
[0043] Figure 3 It is a front view of an embodiment of the utility model;
[0044] Figure 4 yes Figure 3 A top view of
[0045] Figure 5 It is a structural schematic diagram of the first driving and locking unit in the embodiment of the utility model;
[0046] Figure 6It is a structural schematic diagram of the second driving and locking unit in the embodiment of the utility model.
[0047] In the figure:
[0048] 01-torsion bar, 02-universal joint, 03-shim;
[0049] 1-fixed base, 2-loading module, 3-first adjusting module, 31-first linear slide rail, 32-first linear slider, 33-first drive locking unit, 331-first lead screw, 332-first nut, 333-first bearing, 4-driving module, 5-second adjusting module, 51-second linear slide rail, 52-second linear slider, 53-second drive locking unit, 531-second lead screw, 532-second nut, 533-second bearing, 6-driving handwheel, 7-stop ring, 8-shaft end retaining ring. DETAILED DESCRIPTION
[0050] In order to make the purpose, advantages and features of the utility model clearer, the following is a further detailed description of a torsion bar testing device with a variable working angle proposed by the utility model in combination with the accompanying drawings and specific embodiments. According to the following specific implementation methods, the advantages and features of the utility model will be clearer.
[0051] In the description of the present invention, it should be noted that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0052] See also Figure 3 and Figure 4 The present embodiment provides a torsion bar testing device with a variable working angle, which mainly includes a fixed base 1, a loading module 2, a first adjusting module 3, a driving module 4 and a second adjusting module 5.
[0053] The torsion bar 01 to be tested is respectively installed on the working ends of the loading module 2 and the driving module 4 through the universal joints 02 at both ends thereof. Through the joint action of the loading module 2 and the driving module 4, the testing work of the torsion bar 01 is completed.
[0054] Among them, the loading module 2 is installed on the adjusting end of the first adjusting module 3, and the fixed end of the first adjusting module 3 is installed on the fixed base 1; the adjustment direction of the first adjusting module 3 is along the horizontal direction and parallel to the radial direction of the torsion bar 01. The main function of the first adjusting module 3 is to adjust the radial relative position between the loading module 2 and the driving module 4, thereby adjusting the angle of the universal joint 02 at both ends of the torsion bar 01, thereby meeting the required working angle.
[0055] Specifically, the first adjustment module 3 includes two first linear guide rails 31, two groups of first linear sliders 32 and a first driving locking unit 33; the two first linear guide rails 31 are both used as the fixed ends of the first adjustment module 3 and are installed on the fixed base 1, and the setting direction thereof is along the horizontal direction and parallel to the radial direction of the torsion bar 01, and a first interval is set between the two first linear guide rails 31. The two groups of first linear sliders 32 are both used as the adjustment ends of the first adjustment module 3 and are respectively slidably installed on the two groups of first linear guide rails 31, and each group includes at least one first linear slider 32; the loading module 2 is installed on the two groups of first linear sliders 32; the first driving locking unit 33 is installed on the fixed base 1 and is located between the two first linear guide rails 31, and its output direction is parallel to the setting direction of the first linear guide rails 31, and the output end is connected to the loading module 2, so that the loading module 2 is driven to move through the first driving locking unit 33, and the loading module 2 drives the first linear slider 32 to slide along the first linear guide rail 31, thereby achieving the purpose of adjusting the radial relative position between the loading module 2 and the driving module 4.
[0056] The driving module 4 is installed on the adjusting end of the second adjusting module 5, and the fixed end of the second adjusting module 5 is installed on the fixed base 1; the adjustment direction of the second adjusting module 5 is parallel to the axial direction of the torsion bar 01, and the second adjusting module 5 mainly adjusts the axial relative position between the loading module 2 and the driving module 4, so as to meet the installation needs of torsion bars 01 of different lengths.
[0057] Specifically, the second adjustment module 5 includes two second linear guide rails 51, two groups of second linear sliders 52 and a second drive locking unit 53; the two second linear guide rails 51 are both used as the fixed ends of the second adjustment module 5, installed on the fixed base 1, and are arranged parallel to the axial direction of the torsion bar 01, and a second interval is arranged between the two second linear guide rails 51; the two groups of second linear sliders 52 are both used as the adjustment ends of the second adjustment module 5, and are respectively slidably installed on the two second linear guide rails 51, and each group includes at least one second linear slider 52; the driving module 4 is installed on the two groups of second linear sliders 52; the second drive locking unit 53 is installed on the fixed base 1 and is located between the two second linear guide rails 51, and its output direction is parallel to the setting direction of the second linear guide rails 51, and the output end is connected to the driving module 4, and the driving module 4 is driven to move through the second drive locking unit 53, thereby driving the second linear slider 52 to move along the second linear guide rail 51, thereby achieving the purpose of adjusting the axial relative position between the loading module 2 and the driving module 4.
[0058] The main functions of the first drive locking unit 33 and the second drive locking unit 53 are to drive the loading module 2 or the drive module 4 to move along their respective preset directions and lock them in a fixed position. Specifically, a manual drive locking unit, an electric drive locking unit, a hydraulic drive locking unit or a pneumatic drive locking unit can be used.
[0059] In this embodiment, an example is given in which the first driving locking unit 33 and the second driving locking unit 53 are both manually driven locking units.
[0060] For details, see Figure 5 The first drive locking unit 33 includes a first screw 331, a first nut 332, a first driving member and two first bearings 333; the axial direction of the first screw 331 is horizontal and parallel to the radial direction of the torsion bar 01; the first nut 332 is threadedly mounted on the first screw 331, and the loading module 2 is installed on the first nut 332. At this time, the first nut 332 has a unique degree of freedom. When the first screw 331 rotates, the first nut 332 moves along the axial direction of the first screw 331; the driving end of the first driving member is installed at one end of the first screw 331; the rotating ends of the two first bearings 333 are fixedly mounted on the circumferential sides of the two ends of the first screw 331, and the fixed ends are installed on the fixed base 1, so that the first screw 331 has a unique degree of freedom and rotates around its generatrix; the first bearing 333 in this embodiment is specifically a deep groove ball bearing.
[0061] The structure of the second drive locking unit 53 is the same as the structure principle of the first drive locking unit 33, but the setting specifications and specific installation positions are different. Figure 6 The second drive locking unit 53 specifically includes a second lead screw 531, a second nut 532, a second drive member and two second bearings 533; the axial direction of the second lead screw 531 is parallel to the axial direction of the torsion bar 01; the second nut 532 is threadedly mounted on the second lead screw 531, and the loading module 2 is mounted on the second nut 532. At this time, the second nut 532 has a unique degree of freedom. When the second lead screw 531 rotates, the second nut 532 moves along the axial direction of the second lead screw 531; the driving end of the second drive member is mounted on one end of the second lead screw 531; the rotating ends of the two second bearings 533 are fixedly mounted on the circumferential sides of the two ends of the second lead screw 531, and the fixed ends are mounted on the fixed base 1, so that the second lead screw 531 has a unique degree of freedom and rotates around its generatrix; the second bearing 533 is also a deep groove ball bearing in this embodiment.
[0062] Since the first drive locking unit 33 and the second drive locking unit 53 of the present embodiment are both manual drive locking units, the first drive member and the second drive member are both drive hand wheels 6, and the position adjustment of the drive module 4 and the loading module 2 can be achieved by manually rotating the drive hand wheels 6. In addition, the threads on the first lead screw 331 and the second lead screw 531 are trapezoidal threads with a tooth angle of 30°, which can achieve self-locking at any position, thereby achieving stepless adjustment and meeting the use requirements of various conditions.
[0063] In other embodiments of the utility model, the first driving member and the second driving member can also be set as driving motors, and the driving motors can be installed on the fixed base 1. The position adjustment of the loading module 2 and the driving module 4 can be achieved by rotating the screw directly corresponding to the driving motor.
[0064] In a preferred embodiment of the utility model, in order to improve the stability of the first lead screw 331 and the second lead screw 531 during rotation, a stop ring 7 and a shaft end retaining ring 8 are further provided on the first lead screw 331 and the second lead screw 531. The stop ring 7 of the first drive locking unit 33 is rotatably mounted on one end of the first lead screw 331 and connected to the corresponding first bearing 333; the shaft end retaining ring 8 of the first drive locking unit 33 is rotatably mounted on the other end of the first lead screw 331 and connected to the corresponding first bearing 333; the stop ring 7 of the second drive locking unit 53 is rotatably mounted on one end of the second lead screw 531 and connected to the corresponding second bearing 533; the shaft end retaining ring 8 of the second drive locking unit 53 is rotatably mounted on the other end of the second lead screw 531 and connected to the corresponding second bearing 533.
[0065] When the test device of the utility model is in use, the displacement is calculated to control the loading module 2 to move radially along the torsion bar 01, so that the universal joints 02 at both ends of the torsion bar 01 meet the working angle requirements required for the test; the driving module 4 is controlled to move axially along the torsion bar 01 to meet the installation requirements of torsion bars 01 of different lengths, and the control is simple and reliable.
Claims
1. A torsion bar testing device with variable working angle, characterized in that: It comprises a fixed base (1), a loading module (2), a first adjustment module (3), a driving module (4) and a second adjustment module (5); The torsion bar (01) to be tested is respectively mounted on the working ends of the loading module (2) and the driving module (4) through the universal joints (02) at both ends thereof; The loading module (2) is mounted on the adjusting end of the first adjusting module (3), and the fixing end of the first adjusting module (3) is mounted on the fixing base (1); The adjustment direction of the first adjustment module (3) is along the horizontal direction and parallel to the radial direction of the torsion bar (01), and is used to adjust the radial relative position between the loading module (2) and the driving module (4), thereby adjusting the angles of the universal joints (02) at both ends of the torsion bar (01); The driving module (4) is mounted on the adjusting end of the second adjusting module (5), and the fixing end of the second adjusting module (5) is mounted on the fixing base (1); The adjustment direction of the second adjustment module (5) is parallel to the axial direction of the torsion bar (01), and is used to adjust the axial relative position between the loading module (2) and the driving module (4), thereby meeting the installation requirements of torsion bars (01) of different lengths.
2. A torsion bar testing device with a variable working angle according to claim 1, characterized in that: The first adjustment module (3) comprises a first linear slide rail (31), a first linear slide block (32) and a first driving locking unit (33); The first linear slide rail (31) is the fixed end of the first adjustment module (3), which is installed on the fixed base (1), and its setting direction is along the horizontal direction and parallel to the radial direction of the torsion bar (01); the first linear slider (32) is the adjustment end of the first adjustment module (3), which is slidably installed on the first linear slide rail (31); the loading module (2) is installed on the first linear slider (32); the first driving locking unit (33) is installed on the fixed base (1), and its output direction is parallel to the setting direction of the first linear slide rail (31), and the output end is connected to the loading module (2) and is used to adjust the radial relative position between the loading module (2) and the driving module (4); The second adjustment module (5) comprises a second linear slide rail (51), a second linear slide block (52) and a second drive locking unit (53); The second linear slide rail (51) is the fixed end of the second adjustment module (5), which is installed on the fixed base (1) and is arranged parallel to the axial direction of the torsion bar (01); the second linear slider (52) is the adjustment end of the second adjustment module (5), which is slidably installed on the second linear slide rail (51); the driving module (4) is installed on the second linear slider (52); the second driving locking unit (53) is installed on the fixed base (1), and its output direction is parallel to the setting direction of the second linear slide rail (51), and the output end is connected to the driving module (4) and is used to adjust the axial relative position between the loading module (2) and the driving module (4).
3. A torsion bar testing device with a variable working angle according to claim 2, characterized in that: The number of the first linear slide rail (31) and the number of the second linear slide rail (51) are both two; The two first linear slide rails (31) are arranged in a horizontal direction and parallel to the radial direction of the torsion bar (01), and a first interval is arranged between the two; the two second linear slide rails (51) are arranged in parallel to the axial direction of the torsion bar (01), and a second interval is arranged between the two; The first driving locking unit (33) is arranged between the two first linear slide rails (31), and the second driving locking unit (53) is arranged between the two second linear slide rails (51); The first linear slider (32) and the second linear slider (52) are each in two groups, and each group includes at least one first linear slider (32) or second linear slider (52); The two groups of the first linear slides (32) are respectively slidably mounted on the two first linear slide rails (31), and the loading module (2) is mounted on the two groups of the first linear slides (32); the two groups of the second linear slides (52) are respectively slidably mounted on the two second linear slide rails (51), and the driving module (4) is mounted on the two groups of the second linear slides (52).
4. A torsion bar testing device with a variable working angle according to claim 2 or 3, characterized in that: The first drive locking unit (33) and the second drive locking unit (53) are manually driven locking units, electrically driven locking units, hydraulically driven locking units or pneumatically driven locking units.
5. The torsion bar testing device with variable working angle according to claim 4, characterized in that: The first driving locking unit (33) comprises a first screw (331), a first nut (332), a first driving member and two first bearings (333); The axial direction of the first lead screw (331) is in the horizontal direction and is parallel to the radial direction of the torsion bar (01); the first nut (332) is threadedly mounted on the first lead screw (331), and the loading module (2) is mounted on the first nut (332); the driving end of the first driving member is mounted on one end of the first lead screw (331); the rotating ends of the two first bearings (333) are fixedly mounted on the circumferential sides of the two ends of the first lead screw (331), and the fixed ends are mounted on the fixed base (1); The second driving locking unit (53) comprises a second lead screw (531), a second lead nut (532), a second driving member and two second bearings (533); The axial direction of the second lead screw (531) is parallel to the axial direction of the torsion bar (01); the second nut (532) is threadedly mounted on the second lead screw (531), and the loading module (2) is installed on the second nut (532); the driving end of the second driving member is installed on one end of the second lead screw (531); the rotating ends of the two second bearings (533) are fixedly mounted on the circumferential sides of the two ends of the second lead screw (531), and the fixed ends are installed on the fixed base (1).
6. A torsion bar testing device with a variable working angle according to claim 5, characterized in that: The first driving member and the second driving member are both driving hand wheels (6), and the threads on the first lead screw (331) and the second lead screw (531) are trapezoidal threads with a tooth angle of 30°.
7. The torsion bar testing device with variable working angle according to claim 5, characterized in that: The first driving member and the second driving member are both driving motors; the driving motors are mounted on a fixed base (1).
8. The torsion bar testing device with variable working angle according to claim 5, characterized in that: The first drive locking unit (33) and the second drive locking unit (53) both further include a stop ring (7) and a shaft end retaining ring (8); The stop ring (7) of the first drive locking unit (33) is rotatably mounted on one end of the first lead screw (331) and is connected to the corresponding first bearing (333); the shaft end retaining ring (8) of the first drive locking unit (33) is rotatably mounted on the other end of the first lead screw (331) and is connected to the corresponding first bearing (333); The stop ring (7) of the second drive locking unit (53) is rotatably mounted on one end of the second lead screw (531) and is connected to the corresponding second bearing (533); the shaft end retaining ring (8) of the second drive locking unit (53) is rotatably mounted on the other end of the second lead screw (531) and is connected to the corresponding second bearing (533).