A torque testing device

Abstract

The present invention provides a torque testing device, comprising: a base, used to be connected to a workpiece to be tested; a connecting shaft, used to be coaxially arranged with the workpiece to be tested; a torque detection mechanism, rotatably connected to the base and used to detect the torque of the workpiece to be tested, one end of the torque detection mechanism is connected to one end of the connecting shaft, and the other end of the torque detection mechanism is used to connect to the workpiece to be tested; an angle detection mechanism, connected to the other end of the connecting shaft and used to detect the rotation angle of the workpiece to be tested. The torque testing device of the present invention can realize real-time detection of the torque of the workpiece to be tested at various rotation angles, and by connecting the torque detection mechanism and the angle detection mechanism to the two ends of the device respectively, so as to fix the torque detection mechanism and the angle detection mechanism on an axis system, the overall structure of the torque testing device is simple, the volume is small and the weight is light.

Description

Technical Field

[0001] The present invention relates to the technical field of torque testing, and in particular to a torque testing device. Background Art

[0002] At present, there are various types of torque testing equipment according to the types of the test pieces. Among them, most of the existing torque testing equipment used for torque detection of test pieces such as hinges have relatively simple functions and do not have the ability to measure the relationship between torque and angle changes. Some torque testing equipment that can detect angles are not only large in size and complex in structure, but also costly. Summary of the invention

[0003] The problem solved by the present invention is: how to make the torque testing device have a smaller volume while realizing angle and torque detection.

[0004] In order to solve the above problems, the present invention provides a torque testing device, comprising:

[0005] A base, used for connecting with the device under test;

[0006] A connecting shaft, used to be coaxially arranged with the test piece;

[0007] A torque detection mechanism is rotatably connected to the base and used to detect the torque of the test piece, one end of the torque detection mechanism is connected to one end of the connecting shaft, and the other end of the torque detection mechanism is used to connect to the test piece;

[0008] The angle detection mechanism is connected to the other end of the connecting shaft and is used to detect the rotation angle of the test piece.

[0009] Optionally, the torque detection mechanism includes a torque sensor, a first bearing and a first bearing seat. The torque sensor is connected to one end of the connecting shaft away from the angle detection mechanism and is used to detect the torque of the test piece. The first bearing is sleeved on the torque sensor, and the first bearing seat is sleeved on the first bearing and is detachably connected to the base.

[0010] Optionally, the angle detection mechanism includes a detachably connected angle sensor and a connecting disk, the angle sensor is used to detect the rotation angle of the test piece, the connecting disk is sleeved on one end of the connecting shaft away from the torque detection mechanism, and the angle sensor is located on the side of the connecting disk away from the torque detection mechanism.

[0011] Optionally, the torque testing equipment also includes a limiting mechanism, which includes a first limiting column and a second limiting column, the first limiting column and the second limiting column are arranged in parallel and are respectively detachably connected to the base, a handle is provided on the connecting shaft, the handle and the first limiting column are perpendicular to each other, and the first limiting column and the second limiting column are located on the movement trajectory of the handle.

[0012] Optionally, the limiting mechanism further includes a third limiting column, wherein the third limiting column is used to be connected to or separated from the base, and the handle is located between the first limiting column and the third limiting column when the third limiting column is connected to the base.

[0013] Optionally, the torque testing equipment also includes a protective base having a cavity, one end of the connecting shaft is connected to one end of the torque detection mechanism in the cavity, the other end of the connecting shaft extends out of the protective base and is connected to the angle detection mechanism, and the other end of the torque detection mechanism extends out of the protective base and is used to connect to the piece to be tested.

[0014] Optionally, an opening is provided on the protective base, and the opening is arranged along the circumference of the protective base and communicated with the cavity. One end of the handle is connected to the connecting shaft, and the other end passes through the opening to the outside of the protective base.

[0015] Optionally, the torque testing equipment also includes a second bearing and a second bearing seat, the second bearing seat is sleeved on the connecting shaft and is detachably connected to the protective base outside the cavity, the second bearing is sleeved on the connecting shaft and is connected to one end of the second bearing seat facing the torque detection mechanism, and the outer ring of the second bearing is connected to the protective base.

[0016] Optionally, the base includes a first seat plate, a second seat plate, a support plate and a fixed plate, one end of the support plate and the fixed plate are respectively connected to the first seat plate, and the other end is respectively connected to the second seat plate, the fixed plate is used to connect to one end of the test piece, and the torque detection mechanism is rotatably connected to the first seat plate.

[0017] Optionally, a plurality of fixing holes are provided on the fixing plate, and the plurality of fixing holes are arranged at intervals along an axial direction parallel to the connecting shaft.

[0018] Compared with the prior art, the torque testing device of the present invention drives the torque detection mechanism to rotate by driving the connecting shaft to rotate, thereby driving the hinge connected to the torque detection mechanism in the test piece to rotate together. The torque detection mechanism detects the torque of the test piece in real time during the rotation process. At the same time, the angle detection mechanism connected to the upper end of the connecting shaft detects the rotation angle of the connecting shaft in real time, and the rotation angle of the connecting shaft is also the rotation angle of the test piece, thereby realizing the real-time detection of the torque of the test piece at each rotation angle, and then facilitating the drawing of the angle and torque change curve according to the data detected by the torque detection mechanism and the angle detection mechanism, so as to facilitate the analysis of the relationship between the angle and the torque. Moreover, by connecting the torque detection mechanism and the angle detection mechanism to the two ends of the device respectively, so as to fix the torque detection mechanism and the angle detection mechanism on an axis system, the overall structure of the torque testing device is simple, small in size and light in weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a torque testing device in an embodiment of the present invention;

[0020] Figure 2 It is a cross-sectional schematic diagram of the torque testing device at the torque detection mechanism and the angle detection mechanism in an embodiment of the present invention;

[0021] Figure 3 A structural schematic diagram of a torque testing device from another perspective in an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the torque testing device in an embodiment of the present invention when the handle is rotated 180°;

[0023] Figure 5 Schematic diagram of the structure of the torque testing device in the embodiment of the present invention when the test piece rotates 180°.

[0024] Description of reference numerals:

[0025] 10. Base; 11. First seat plate; 12. Second seat plate; 121. Positioning groove; 13. Support plate; 14. Fixing plate; 141. Fixing hole; 20. Connecting shaft; 30. Torque detection mechanism; 31. Torque sensor; 32. First bearing; 33. First bearing seat; 34. Bushing; 40. Angle detection mechanism; 41. Angle sensor; 42. Connecting plate; 43. Circuit board assembly; 44. Three-coordinate table; 50. Limiting mechanism; 51. First limiting column; 52. Second limiting column; 53. Third limiting column; 60. Handle; 70. Protective base; 71. Cavity; 72. Opening; 80. Second bearing; 90. Second bearing seat; 100. Measured piece; 200. Hinge tooling; 210. Fixed seat plate; 220. Rotating seat plate; 230. Adapter. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] The Z-axis in the drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis (that is, the direction of the arrow of the Z-axis) represents the top, and the reverse direction of the Z-axis represents the bottom; the X-axis in the drawings represents the horizontal direction and is designated as the left and right positions, and the positive direction of the X-axis represents the left side, and the reverse direction of the X-axis represents the right side; the Y-axis in the drawings represents the front and back positions, and the positive direction of the Y-axis represents the front side, and the reverse direction of the Y-axis represents the back side; it should be noted that the aforementioned Z-axis, Y-axis and X-axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0029] The torque test device of the present invention is usually used to perform torque tests on hinges, so the following description is made with the test piece 100 as the hinge. The hinge has two hinged parts that are hinged to each other. In practical applications, the hinge can be installed and fixed on the torque test device by connecting the two hinged parts to the base 10 of the torque test device and the torque detection mechanism 30 respectively. Alternatively, the hinge can be installed on the hinge fixture 200 first. Specifically, Figure 5 As shown, the two hinged parts of the hinge are respectively connected to the fixed seat plate 210 and the rotating seat plate 220 of the hinge fixture 200, and then the rotating seat plate 220 is connected to the end of the torque detection mechanism 30 away from the connecting shaft 20 through the adapter 230, and the fixed seat plate 210 is fixed on the base 10, so that the hinge fixture 200 with the hinge is assembled on the torque testing equipment. After the assembly is completed, the torque of the hinge at various angles is tested.

[0030] Combination Figure 1 and Figure 5As shown, an embodiment of the present invention provides a torque testing device, including: a base 10, used to be connected to a piece to be tested 100; a connecting shaft 20, used to be coaxially arranged with the piece to be tested 100; a torque detection mechanism 30, which is rotatably connected to the base 10 and is used to detect the torque of the piece to be tested 100, one end of the torque detection mechanism 30 is connected to one end of the connecting shaft 20, and the other end of the torque detection mechanism 30 is used to be connected to the piece to be tested 100; an angle detection mechanism 40, which is connected to the other end of the connecting shaft 20 and is used to detect the rotation angle of the piece to be tested 100.

[0031] Specifically, the rotation of the connecting shaft 20 can be driven by a motor, or by a handle 60 as described later, which is not specifically limited here. The connecting shaft 20 can be arranged vertically, such as Figure 1 As shown, at this time, the angle detection mechanism 40 is connected to the upper end of the connecting shaft 20, the torque detection mechanism 30 is connected to the lower end of the connecting shaft 20, and the torque test device is in a vertical state as a whole; of course, the connecting shaft 20 can also be set horizontally. At this time, the angle detection mechanism 40 is connected to the left end (right end) of the connecting shaft 20, the torque detection mechanism 30 is connected to the right end (left end) of the connecting shaft 20, and the torque test device is in a horizontal state as a whole. For the convenience of description, here and in the following text, the torque test device is in a vertical state as an example for explanation. For example, when the hinged test piece 100 is assembled on the torque test device, the hinge axis of the test piece 100 coincides with the axis of the torque detection mechanism 30, and the two hinged parts hinged to each other in the test piece 100 are respectively connected to the lower end of the torque detection mechanism 30 and the base 10, so that one of the two hinged parts hinged to each other in the test piece 100 is fixed on the base 10, and the other can rotate with the torque detection mechanism 30.

[0032] The torque testing device in this embodiment drives the connecting shaft 20 to rotate to drive the torque detection mechanism 30 to rotate, and then drives the hinge connected to the torque detection mechanism 30 in the test piece 100 to rotate together. The torque detection mechanism 30 detects the torque of the test piece 100 in real time during the rotation process. At the same time, the angle detection mechanism 40 connected to the upper end of the connecting shaft 20 detects the rotation angle of the connecting shaft 20 in real time, and the rotation angle of the connecting shaft 20 is also the rotation angle of the test piece 100, thereby realizing the real-time detection of the torque of the test piece 100 at each rotation angle, and then facilitating the drawing of the angle and torque change curve according to the data detected by the torque detection mechanism 30 and the angle detection mechanism 40, so as to facilitate the analysis of the relationship between the angle and the torque. Moreover, by connecting the torque detection mechanism 30 and the angle detection mechanism 40 to the two ends of the , respectively, so as to fix the torque detection mechanism 30 and the angle detection mechanism 40 on an axis system, the overall structure of the torque testing device is simple, small in size and light in weight.

[0033] Optionally, combined Figure 2As shown, the torque detection mechanism 30 includes a torque sensor 31, a first bearing 32 and a first bearing seat 33. The torque sensor 31 is connected to one end of the connecting shaft 20 away from the angle detection mechanism 40 and is used to detect the torque of the test piece 100. The first bearing 32 is sleeved on the torque sensor 31, and the first bearing seat 33 is sleeved on the first bearing 32 and is detachably connected to the base 10.

[0034] Specifically, the first bearing 32 is usually a deep groove ball bearing, and accordingly, the first bearing seat 33 is usually a deep groove ball bearing seat. The upper end of the torque sensor 31 is connected to the lower end of the connecting shaft 20, and the lower end of the torque sensor 31 is used to connect to the test piece 100. The inner ring of the first bearing 32 is connected to the torque sensor 31, and the outer ring is connected to the first bearing seat 33, and the first bearing seat 33 is usually fixed to the base 10 with fasteners such as bolts.

[0035] In this embodiment, a torque sensor 31 is used to realize real-time detection of the torque of the test piece 100 to simplify the structure of the torque detection mechanism 30, thereby further reducing the overall volume and weight of the torque testing equipment. Moreover, the torque sensor 31 is rotatably connected to the base 10 through the first bearing 32 and the first bearing seat 33 to reduce the rotational resistance of the torque sensor 31 while forming a rotational connection between the torque sensor 31 and the base 10, thereby ensuring that the torque value detected by the torque sensor 31 is closer to the actual torque value of the test piece 100, thereby improving the detection accuracy of the torque testing equipment.

[0036] Furthermore, combined with Figure 2 As shown, the torque detection mechanism 30 further includes a sleeve 34 , which is sleeved on the torque sensor 31 , and the first bearing 32 is sleeved on the sleeve 34 , and the sleeve 34 is used to limit the axial displacement of the torque sensor 31 .

[0037] In this embodiment, the torque sensor 31 is connected to the inner ring of the first bearing 32 through the sleeve 34. At the same time, the sleeve 34 also forms an abutment with the upper end surface of the first bearing 32. In this way, when the torque sensor 31 is assembled in place, the torque sensor 31 cannot move downward due to the cooperation between the sleeve 34 and the first bearing 32, thereby ensuring the stability of the torque sensor 31 during installation.

[0038] Optionally, combined Figure 2 As shown, the angle detection mechanism 40 includes a detachably connected angle sensor 41 and a connecting disk 42. The angle sensor 41 is used to detect the rotation angle of the test piece 100. The connecting disk 42 is sleeved on one end of the connecting shaft 20 away from the torque detection mechanism 30. The angle sensor 41 is located on the side of the connecting disk 42 away from the torque detection mechanism 30.

[0039] Specifically, the connecting disk 42 is sleeved on the upper end of the connecting shaft 20 , and the angle sensor 41 is detachably fixed on the connecting disk 42 and is located above the connecting disk 42 .

[0040] In this embodiment, an angle sensor 41 is used to realize real-time detection of the rotation angle of the test piece 100 to simplify the structure of the angle detection mechanism 40, thereby further reducing the overall volume and weight of the torque testing equipment. At the same time, the angle sensor 41 is fixed to the upper end of the connecting shaft 20 through the connecting disk 42 to realize the installation and fixation of the angle sensor 41 on the connecting shaft 20, which has a simple structure and is easy to disassemble and assemble.

[0041] Furthermore, combined with Figure 2 As shown, the angle detection mechanism 40 also includes a circuit board assembly 43 and a three-coordinate table 44. The circuit board assembly 43 is communicatively connected to the angle sensor 41. The three-coordinate table 44 is disposed on the base 10. The circuit board assembly 43 is disposed on the three-coordinate table 44 and is located on the side of the angle sensor 41 away from the connecting disk 42.

[0042] In this embodiment, the angle sensor 41 is usually a magnetically encoded angle sensor, which cooperates with the circuit board assembly 43 to detect the rotation angle of the test piece 100; the circuit board assembly 43 is installed on the three-coordinate table 44, and can move along the Z axis under the drive of the three-coordinate table 44. At the same time, the three-coordinate table 44 is set on the base 10 and can move along the X axis and Y axis on the base 10. In this way, the circuit board assembly 43 can be adaptively adjusted according to the different positions of the connecting shaft 20 and the torque sensor 31 on the base 10, so that the circuit board assembly 43 corresponds to the angle sensor 41 fixed on the connecting shaft 20, so that the torque measurement in various situations can be realized by replacing the different installation positions of the torque sensor 31, and it has high compatibility with the torque sensors 31 of different ranges.

[0043] Optionally, combined Figure 1 and Figure 3 As shown, the torque testing equipment also includes a limiting mechanism 50, which includes a first limiting column 51 and a second limiting column 52. The first limiting column 51 and the second limiting column 52 are arranged in parallel and are respectively detachably connected to the base 10. A handle 60 is provided on the connecting shaft 20. The handle 60 and the first limiting column 51 are perpendicular to each other, and the first limiting column 51 and the second limiting column 52 are located on the movement trajectory of the handle 60.

[0044] Specifically, the first limiting column 51 and the second limiting column 52 are usually detachably connected to the base 10 by threaded connection. For example, an external thread is provided on the limiting column, and a threaded hole is provided on the base 10. The limiting column is fixed to the threaded hole of the base 10 by twisting it. The handle 60 is rotated to rotate the connecting shaft 20 around its own axis. The motion trajectory of the handle 60 is the trajectory formed when the handle 60 rotates around the axis of the connecting shaft 20, and the first limiting column 51 and the second limiting column 52 are located on the motion trajectory of the handle 60. The first limiting column 51 is used as the starting position of the rotation angle of the test piece 100 being 0°, which is also the zero position of the handle 60. The second limiting column 52 is used as the ending position of the rotation angle of the test piece 100 being the maximum value. The handle 60 rotates between the starting position corresponding to the first limiting column 51 and the ending position corresponding to the second limiting column 52. The maximum value of the rotation angle of the test piece 100 can be set to 120°, 180° or 200°, etc., and can be set as needed in actual applications.

[0045] In this embodiment, a handle 60 is provided on the connecting shaft 20. On the one hand, the connecting shaft 20 can be driven to rotate manually, thereby reducing the number of motors, making the structure of the torque test device simpler and more cost-effective; on the other hand, a manual drive mode can be added to the motor-driven mode of the connecting shaft 20, so that the connecting shaft 20 can be driven to rotate by rotating the handle 60 when the motor fails, thereby extending the service life of the torque test device. At the same time, the first limit column 51 and the second limit column 52 are provided to limit the rotation angle of the handle 60, which has a simple structure and is easy to operate.

[0046] Optionally, combined Figure 3 and Figure 4 As shown, the limiting mechanism 50 further includes a third limiting column 53 , which is used to connect to or separate from the base 10 , and the handle 60 is located between the first limiting column 51 and the third limiting column 53 when the third limiting column 53 is connected to the base 10 .

[0047] In this embodiment, when the torque testing equipment is not in use, the handle 60 is located at the zero position, that is, the handle 60 is in contact with the first limit column 51 and is located between the third limit column 53 and the first limit column 51. In this way, the handle 60 can be prevented from rotating due to improper operation; when the torque testing equipment is tested, the third limit column 53 must be removed first, and then the connecting shaft 20 is driven to rotate to detect the torque and angle of the test piece 100.

[0048] Optionally, combined Figure 1 and Figure 2As shown, the torque testing equipment also includes a protective base 70, which has a cavity 71. One end of the connecting shaft 20 is connected to one end of the torque detection mechanism 30 in the cavity 71, and the other end of the connecting shaft 20 extends out of the protective base 70 and is connected to the angle detection mechanism 40. The other end of the torque detection mechanism 30 extends out of the protective base 70 and is used to connect to the test piece 100.

[0049] Specifically, the protective base 70 is a shell structure having a cavity 71, which can be detachably fixed on the base 10 and covered on the connecting shaft 20 and the torque sensor 31. The lower end of the connecting shaft 20 and the upper end of the torque sensor 31 are connected in the cavity 71 of the protective base 70. The upper end of the connecting shaft 20 extends out of the protective base 70 and is connected to the angle sensor 41. The lower end of the torque sensor 31 extends out of the protective base 70 and is used to connect to the test piece 100.

[0050] In this embodiment, a protective base 70 can be provided and the protective base 70 can be covered on the connecting shaft 20 and the torque sensor 31, which is not only more beautiful but also can protect the connecting shaft 20 and the torque sensor 31, thereby further extending the service life of the torque testing equipment.

[0051] Optionally, combined Figure 2 and Figure 3 As shown, the protective base 70 is provided with an opening 72 , which is arranged along the circumference of the protective base 70 and communicates with the cavity 71 . One end of the handle 60 is connected to the connecting shaft 20 , and the other end passes through the opening 72 to the outside of the protective base 70 .

[0052] Specifically, the opening 72 is provided on the protective base 70 along the movement trajectory of the handle 60 . When the handle 60 is rotated, the handle 60 rotates around the axis of the connecting shaft 20 in the opening 72 .

[0053] In this embodiment, by setting an opening 72 on the protective base 70, not only can the rotational movement of the handle 60 be avoided, but the rotation angle of the handle 60 can also be limited by using the hole walls on the left and right ends of the opening 72. In this way, when the first limit column 51 and the second limit column 52 cannot be limited due to damage, or when the first limit column 51 and the second limit column 52 are cancelled, the opening 72 can be used to limit the rotation angle of the handle 60.

[0054] Optionally, combined Figure 1 and Figure 2As shown, the torque testing equipment also includes a second bearing 80 and a second bearing seat 90. The second bearing seat 90 is sleeved on the connecting shaft 20 and is detachably connected to the protective base 70 outside the cavity 71. The second bearing 80 is sleeved on the connecting shaft 20 and is connected to one end of the second bearing seat 90 toward the torque detection mechanism 30, and the outer ring of the second bearing 80 is connected to the protective base 70.

[0055] Specifically, the second bearing 80 is usually an angular contact bearing, and accordingly, the second bearing seat 90 is usually an angular contact bearing seat; the second bearing 80 is sleeved on the upper end of the connecting shaft 20, and the second bearing seat 90 is sleeved on the second bearing 80 and is located above the protective base 70, and the second bearing seat 90 is usually detachably connected to the protective base 70 using fasteners such as bolts.

[0056] In this embodiment, the connecting shaft 20 is rotatably connected to the protective base 70 via the second bearing 80 and the second bearing seat 90, so as to reduce the rotational resistance of the connecting shaft 20 while forming a rotational connection between the connecting shaft 20 and the protective base 70, thereby ensuring that the torque value detected by the torque sensor 31 rotating with the connecting shaft 20 is closer to the actual torque value of the test piece 100, thereby further improving the detection accuracy of the torque testing equipment.

[0057] Optionally, combined Figure 1 and Figure 3 As shown, the base 10 includes a first seat plate 11, a second seat plate 12, a support plate 13 and a fixed plate 14. One end of the support plate 13 and the fixed plate 14 are respectively connected to the first seat plate 11, and the other end is respectively connected to the second seat plate 12. The fixed plate 14 is used to connect to one end of the test piece 100, and the torque detection mechanism 30 is rotatably connected to the first seat plate 11.

[0058] Specifically, the base 10 is a frame structure as a whole, the first seat plate 11 constitutes the upper end of the base 10, the second seat plate 12 constitutes the lower end of the base 10, the support plate 13 and the fixed plate 14 are located between the first seat plate 11 and the second seat plate 12, and support the first seat plate 11 and the torque detection mechanism 30, the connecting shaft 20, the angle detection mechanism 40, and the protective base 70 directly or indirectly mounted on the first seat plate 11. The protective base 70 is detachably fixed on the first seat plate 11, and the lower end of the torque sensor 31 extends from the lower end of the protective base 70 and passes through the first seat plate 11 to the bottom of the first seat plate 11. The two hinged parts in the test piece 100 that are hinged to each other are respectively connected to the lower end of the torque sensor 31 and the fixed plate 14 to install the test piece 100 on the torque test equipment. For example Figure 5As shown, first install the test piece 100 such as a hinge on the hinge fixture 200, then fix the fixed seat plate 210 of the hinge fixture 200 on the fixed plate 14 of the base 10, and connect the rotating seat plate 220 of the hinge fixture 200 to the lower end of the torque sensor 31 through the adapter 230. In this way, when the handle 60 is rotated to rotate the connecting shaft 20, the torque sensor 31 will be driven to rotate together, and the rotating seat plate 220 will be driven to flip around the hinge axis of the hinge. In this process, the torque sensor 31 detects the torque of the hinge, and the angle sensor 41 detects the rotation angle of the hinge.

[0059] In this embodiment, the base 10 is configured as a frame structure including a first seat plate 11, a second seat plate 12, a support plate 13 and a fixing plate 14 to simplify the structure of the base 10 and facilitate processing and manufacturing. Moreover, the test piece 100 can be assembled in the frame structure to reduce the space occupied by the torque testing equipment during testing. At the same time, the torque detection mechanism 30 is rotatably connected to the first seat plate 11 to achieve a rotational connection between the torque detection mechanism 30 and the base 10.

[0060] Optionally, combined Figure 3 As shown, a plurality of fixing holes 141 are provided on the fixing plate 14 , and the plurality of fixing holes 141 are arranged at intervals along an axial direction parallel to the connecting shaft 20 .

[0061] In this embodiment, a plurality of fixing holes 141 are provided on the fixing plate 14 to provide installation positions for different hinge fixtures 200 , so that the torque testing device can be applicable to the torque and angle testing of various test pieces 100 , and has higher versatility.

[0062] Furthermore, combined with Figure 3 As shown, a positioning groove 121 is provided on the second seat plate 12 , and the fixing plate 14 is detachably connected to the second seat plate 12 at the positioning groove 121 .

[0063] In this embodiment, the fixing plate 14 can be pre-positioned by providing a positioning groove 121 on the second seat plate 12 , thereby improving the convenience of installing the fixing plate 14 .

[0064] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A torque testing device, characterized in that: include: A base (10) used for connecting to the device to be tested (100); A connecting shaft (20) configured to be coaxially arranged with the test piece (100); a torque detection mechanism (30) rotatably connected to the base (10) and used to detect the torque of the test piece (100); one end of the torque detection mechanism (30) is connected to one end of the connecting shaft (20), and the other end of the torque detection mechanism (30) is used to connect to the test piece (100); An angle detection mechanism (40) connected to the other end of the connecting shaft (20) and used to detect the rotation angle of the object to be tested (100); The torque detection mechanism (30) comprises a torque sensor (31), a first bearing (32) and a first bearing seat (33); the torque sensor (31) is connected to an end of the connecting shaft (20) away from the angle detection mechanism (40) and is used to detect the torque of the test piece (100); the first bearing (32) is sleeved on the torque sensor (31); the first bearing seat (33) is sleeved on the first bearing (32) and is detachably connected to the base (10); The angle detection mechanism (40) comprises a detachably connected angle sensor (41) and a connecting disk (42), wherein the angle sensor (41) is used to detect the rotation angle of the test piece (100), the connecting disk (42) is sleeved on an end of the connecting shaft (20) away from the torque detection mechanism (30), and the angle sensor (41) is located on a side of the connecting disk (42) away from the torque detection mechanism (30); The torque testing device further comprises a protective base (70), wherein the protective base (70) has a cavity (71), one end of the connecting shaft (20) is connected to one end of the torque detection mechanism (30) in the cavity (71), the other end of the connecting shaft (20) extends out of the protective base (70) and is connected to the angle detection mechanism (40), and the other end of the torque detection mechanism (30) extends out of the protective base (70) and is used to be connected to the test piece (100).

2. The torque testing device according to claim 1, characterized in that: The invention also comprises a limiting mechanism (50), wherein the limiting mechanism (50) comprises a first limiting column (51) and a second limiting column (52), wherein the first limiting column (51) and the second limiting column (52) are arranged in parallel and are respectively detachably connected to the base (10), and a handle (60) is arranged on the connecting shaft (20), wherein the handle (60) and the first limiting column (51) are perpendicular to each other, and the first limiting column (51) and the second limiting column (52) are located on the movement trajectory of the handle (60).

3. The torque testing device according to claim 2, characterized in that: The limiting mechanism (50) further comprises a third limiting column (53), wherein the third limiting column (53) is used to be connected to or separated from the base (10), and the handle (60) is located between the first limiting column (51) and the third limiting column (53) when the third limiting column (53) is connected to the base (10).

4. The torque testing device according to claim 2, characterized in that: The protective base (70) is provided with an opening (72), which is arranged along the circumference of the protective base (70) and communicates with the cavity (71); one end of the handle (60) is connected to the connecting shaft (20), and the other end passes through the opening (72) to the outside of the protective base (70).

5. The torque testing device according to claim 2, characterized in that: It also includes a second bearing (80) and a second bearing seat (90), wherein the second bearing seat (90) is sleeved on the connecting shaft (20) and is detachably connected to the protective base (70) outside the cavity (71), the second bearing (80) is sleeved on the connecting shaft (20) and is connected to one end of the second bearing seat (90) facing the torque detection mechanism (30), and the outer ring of the second bearing (80) is connected to the protective base (70).

6. The torque testing device according to claim 1, characterized in that: The base (10) comprises a first seat plate (11), a second seat plate (12), a support plate (13) and a fixed plate (14); one end of the support plate (13) and the fixed plate (14) are respectively connected to the first seat plate (11), and the other end is respectively connected to the second seat plate (12); the fixed plate (14) is used to be connected to one end of the test piece (100); and the torque detection mechanism (30) is rotatably connected to the first seat plate (11).

7. The torque testing device according to claim 6, characterized in that: The fixing plate (14) is provided with a plurality of fixing holes (141), and the plurality of fixing holes (141) are arranged at intervals along an axial direction parallel to the connecting shaft (20).

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