A clamping locking device and a centrifugal force loading mechanism

Abstract

The application discloses a clamping locking device and a centrifugal force loading mechanism, and the device comprises a centrifugal force transmission upper joint, a centrifugal force transmission lower joint and a connecting assembly; wherein the centrifugal force transmission upper joint and the centrifugal force transmission lower joint are respectively arranged as semi-cylindrical structure joints, and are oppositely arranged in a top-down symmetrical mode and fixedly connected by the connecting assembly to form an integral cylindrical joint; both ends of the centrifugal force transmission upper joint and the centrifugal force transmission lower joint are respectively provided with stepped grooves, so that after the centrifugal force transmission upper joint and the centrifugal force transmission lower joint are oppositely mounted, both ends form stepped cylindrical cavities, a centrifugal force loading force bearing joint is mounted in one end of the stepped cylindrical cavity, and a loading end of a centrifugal force actuator is mounted in the other end of the stepped cylindrical cavity. The technical scheme provided by the application successfully solves the problem that the force bearing in the centrifugal force loading structure is connected by threads and is often broken due to fatigue; the main force bearing and transmission rely on a stepped structure and a pin shaft, the thread connection link in loading is eliminated, and the risk of thread connection fatigue fracture is avoided; the application can be referred to for implementation and modification in the case of fracture of thread force bearing components in other load loading.

Description

Technical Field

[0001] This invention relates to, but is not limited to, the field of fatigue testing technology, and particularly to a clamping and locking device and a centrifugal force loading mechanism. Background Technology

[0002] In fatigue testing of helicopter rotor systems, centrifugal force loading is an indispensable and important part in order to better simulate the installation environment of rotor components during rotation.

[0003] Currently, centrifugal force loading for rotor components is mostly implemented by combining a wire rope with a centrifugal force loading actuator (such as an actuator). The connection between the wire rope and the centrifugal force actuator is a threaded connection. During the reciprocating motion of the centrifugal force loading process, fatigue fracture of the threaded joint often occurs, which has a serious adverse effect on the loading test. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems. This invention provides a clamping and locking device and a centrifugal force loading mechanism to address the problem that in existing test methods for centrifugal force loading of rotor components, the wire rope and the centrifugal force actuator are connected by a threaded joint, which often leads to fatigue fracture of the threaded joint during the reciprocating motion of the centrifugal force loading process, seriously affecting the normal implementation of the loading test.

[0005] The technical solution of the present invention: In a first aspect, the embodiments of the present invention provide a clamping and locking device, comprising: an upper centrifugal force transmission connector 7, a lower centrifugal force transmission connector 8, and a connecting assembly;

[0006] The centrifugal force transmission upper connector 7 and centrifugal force transmission lower connector 8 are respectively set as semi-cylindrical structure connectors, and are arranged symmetrically above and below and fixedly connected by connecting components to form an integral cylindrical connector.

[0007] The upper centrifugal force transmission connector 7 and the lower centrifugal force transmission connector 8 are respectively provided with stepped grooves at both ends, so that after the upper centrifugal force transmission connector 7 and the lower centrifugal force transmission connector 8 are installed relative to each other, the two ends are respectively stepped columnar cavities. The centrifugal force loading bearing connector 1 is installed by nesting in one of the stepped columnar cavities, and the loading end of the centrifugal force actuator 4 is installed by nesting in the other stepped columnar cavity.

[0008] Optionally, in the clamping and locking device described above,

[0009] The clamping and locking device is used to connect the stepped columnar cavities at both ends of the integral columnar joint formed by the centrifugal force transmission upper joint 7 and the centrifugal force transmission lower joint 8 with the columnar stepped structure at the loading end of the centrifugal force actuator 4 and the columnar stepped structure at the end of the centrifugal force loading bearing joint 1. The centrifugal force is transmitted to the steel wire rope 3 at the rear end of the loading bearing joint 1 by the bearing and transmitting of the centrifugal force through the mating end face of the columnar stepped structure and the stepped columnar cavity.

[0010] Optionally, in the clamping and locking device described above, the connecting assembly includes: a centrifugal force bearing pin 9 and a bearing pin fixing nut 10;

[0011] The upper centrifugal force transmission connector 7 and the lower centrifugal force transmission connector 8 are respectively provided with connecting pin holes in the middle of their semi-cylindrical walls. These holes are used to install the centrifugal force bearing pin 9 through one side of the connecting pin hole and to install the bearing pin fixing nut 10 through the connecting pin hole on the other side. This allows the centrifugal force bearing pin 9 and the bearing pin fixing nut 10, which are installed opposite to each other from both sides, to be fixedly connected inside the upper centrifugal force transmission connector 7 and the lower centrifugal force transmission connector 8 by threads, so as to connect the upper centrifugal force transmission connector 7 and the lower centrifugal force transmission connector 8 into an integral structure.

[0012] Optionally, the clamping and locking device described above further includes: an anti-disengagement sleeve 11;

[0013] The anti-detachment sleeve 11 is sleeved on the outside of the integral columnar joint formed by the upper centrifugal force transmission joint 7 and the lower centrifugal force transmission joint 8, and is located outside of the centrifugal force bearing pin 9 and the bearing pin fixing nut 10.

[0014] Optionally, the clamping and locking device described above further includes: a first loading and fixing nut 12 and a second loading and fixing nut 13;

[0015] The upper centrifugal force transmission connector 7 and the lower centrifugal force transmission connector 8 are provided with external threads. They are screwed onto the outside of the integral columnar connector formed by the upper centrifugal force transmission connector 7 and the lower centrifugal force transmission connector 8 by the first loading fixing nut 12 and the second loading fixing nut 13, and are respectively located at both ends of the anti-detachment sleeve 11.

[0016] Secondly, embodiments of the present invention also provide a centrifugal loading mechanism, comprising: a centrifugal loading bearing joint 1, a wire rope connecting assembly 2, a wire rope 3, a centrifugal actuator 4, an actuator connecting pin 5, a test bearing platform 6, and a clamping and locking device for connecting the wire rope connecting assembly 2 and the centrifugal actuator 4, wherein the clamping and locking device is the clamping and locking device according to any one of claims 1 to 5;

[0017] One end of the centrifugal force loading bearing joint 1 is connected to the wire rope connecting assembly 2, and the other end is sleeved and clamped on one end of the clamping and locking device. The loading end of the centrifugal force actuator 4 is sleeved and clamped on the other end of the clamping and locking device. The fixed end of the centrifugal force actuator 4 is fixedly connected to the test bearing platform 6 through the actuator connecting pin 5. Wire ropes 3 are respectively hinged on both sides of the wire rope connecting assembly 2.

[0018] Optionally, in the centrifugal force loading mechanism described above,

[0019] The centrifugal force loading mechanism is used to apply centrifugal force through the centrifugal force actuator 4. The centrifugal force is transmitted sequentially to the centrifugal force loading bearing joint 1 and the wire rope connection assembly 2 through the clamping and locking device, and the centrifugal force is transmitted between the centrifugal force loading bearing joint 1 and the wire rope 3 through the wire rope connection assembly 2.

[0020] Optionally, in the centrifugal force loading mechanism described above,

[0021] One end of the centrifugal force loading bearing joint 1 is configured as a columnar stepped structure, which is used to be nested in the stepped columnar cavity at one end of the clamping and locking device;

[0022] The loading end of the centrifugal actuator 4 is configured as a columnar stepped structure, which is used to be nested in the stepped columnar cavity at the other end of the clamping and locking device;

[0023] The centrifugal force is transmitted to the steel wire rope 3 at the rear end of the load-bearing joint 1 by the joint face of the columnar stepped structure and the stepped columnar cavity.

[0024] Optionally, in the centrifugal force loading mechanism described above, the wire rope connecting assembly 2 includes: a pin assembly 2a, a wire rope transition connecting rod 2b, a first connecting pin 2c, and a second connecting pin 2d;

[0025] In the pin assembly 2a, the pin passes vertically through the centrifugal force loading bearing joint 1 and is hinged to the end away from the clamping and locking device. Pin end caps at both ends of the pin restrict its axial position. The two ends of the two pin end caps are respectively hinged to one end of a wire rope transition connecting rod 2b by a second connecting pin 2d. The other end of each wire rope transition connecting rod 2b is respectively hinged to the end of the wire rope 3 by a first connecting pin 2c on the double ears, forming a centrifugal force transmission path between the wire rope 3 and the centrifugal force actuator 4.

[0026] The beneficial effects of the present invention: The embodiments of the present invention provide a clamping and locking device and a centrifugal force loading mechanism. On the one hand, the structure of the clamping and locking device, the centrifugal force loading bearing joint 1, and the wire rope connection assembly 2 replaces the threaded connection between the wire rope 3 and the centrifugal force actuator in the traditional solution. This avoids the problem in existing test methods for centrifugal force loading of rotor components, where the wire rope 3 and the centrifugal force actuator are connected by a threaded joint, which often leads to fatigue fracture of the threaded joint during the reciprocating motion of the centrifugal force loading process, seriously affecting the normal implementation of the loading test. On the other hand, the clamping and locking device provided by the present invention... The main force transmission in the device relies on the centrifugal force loading joint 1, the upper centrifugal force transmission joint 7, the lower centrifugal force transmission joint 8, the centrifugal force bearing pin 9, and the columnar stepped structure at the loading end of the centrifugal force actuator 4. This eliminates the threaded connection links during loading, avoiding the risk of fatigue fracture of the threaded connection. Furthermore, the clamping and locking device provided in this embodiment of the invention uses a combination of an anti-loosening sleeve 11, a first loading fixing nut 12, and a second loading fixing nut 13. This not only fixes the upper centrifugal force transmission joint 7 and the lower centrifugal force transmission joint 8, but also effectively suppresses the loosening and jerking of the centrifugal force bearing pin 9. The technical solution provided in this embodiment of the invention has the following beneficial effects:

[0027] This clamping and locking device is easy to install and has a strong load-bearing capacity. It successfully solves the problem of frequent fatigue fractures in centrifugal force loading structures that rely on threaded connections for load bearing. The main load transmission relies on a stepped structure and a pin shaft, eliminating the threaded connection link during loading and avoiding the risk of fatigue fracture of the threaded connection. In cases where threaded load-bearing components break under other loads, modifications can be made accordingly. Attached Figure Description

[0028] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0029] Figure 1 This is a schematic diagram of the overall structure of a clamping and locking device provided in an embodiment of the present invention;

[0030] Figure 2 for Figure 1 A three-dimensional structural diagram of the clamping and locking device provided in the embodiment shown;

[0031] Figure 3 This is a schematic diagram of a centrifugal force loading mechanism provided in an embodiment of the present invention. Figure 3 The enlarged schematic diagram shows the clamping and locking device.

[0032] Figure 4 for Figure 3 The illustrated embodiment provides a three-dimensional structural diagram of the centrifugal force loading mechanism. Figure 4 The enlarged schematic diagram shows the clamping and locking device. Detailed Implementation Plan

[0033] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0034] As explained in the background section, the importance of centrifugal force loading in fatigue testing of helicopter rotor systems is significant. Existing testing methods for centrifugal force loading of rotor components often suffer from fatigue fracture of the threaded joints during the reciprocating motion of the wire rope and centrifugal actuator, severely hindering the proper implementation of the loading test.

[0035] To address the aforementioned problems, embodiments of the present invention provide a clamping and locking device and a centrifugal force loading mechanism, which solves the problem that in existing centrifugal force loading tests for rotor components, the threaded joints frequently fail due to fatigue during the centrifugal force loading process, thus affecting the normal implementation of the test; the clamping and locking device and the centrifugal force loading mechanism achieve the requirement of continuous loading in fatigue test loading.

[0036] The present invention provides the following specific embodiments, which can be combined with each other. For the same or similar concepts or processes, they may not be described again in some embodiments.

[0037] Example 1:

[0038] Figure 1 This is a schematic diagram of the overall structure of a clamping and locking device provided in an embodiment of the present invention; Figure 2 for Figure 1 A three-dimensional structural schematic diagram of the clamping and locking device provided in the illustrated embodiment. (See attached diagram.) Figure 1 and Figure 2 As shown, the clamping and locking device provided in this embodiment of the invention comprises: an upper centrifugal force transmission connector 7, a lower centrifugal force transmission connector 8, and a connecting assembly.

[0039] like Figure 1 and Figure 2 In the structure of the clamping and locking device shown, the upper centrifugal force transmission connector 7 and the lower centrifugal force transmission connector 8 are respectively set as semi-cylindrical structure connectors, and are arranged symmetrically above and below and fixedly connected by connecting components to form an integral cylindrical connector.

[0040] In this embodiment of the invention, stepped grooves are respectively provided at both ends of the upper centrifugal force transmission connector 7 and the lower centrifugal force transmission connector 8, so that after the upper centrifugal force transmission connector 7 and the lower centrifugal force transmission connector 8 are installed relative to each other, both ends are respectively stepped columnar cavities. The centrifugal force loading bearing connector 1 is installed by nesting in one stepped columnar cavity, and the loading end of the centrifugal force actuator 4 is installed by nesting in the other stepped columnar cavity.

[0041] Based on the structure of the clamping and locking device provided in the above embodiments of the present invention, the centrifugal force transmission principle of the clamping and locking device is as follows: the stepped columnar cavities at both ends of the integral columnar joint formed by the centrifugal force transmission upper joint 7 and the centrifugal force transmission lower joint 8 correspond to the columnar stepped structure at the loading end of the centrifugal force actuator 4 and the columnar stepped structure at the end of the centrifugal force loading bearing joint 1. The centrifugal force is transmitted to the steel wire rope 3 at the rear end of the loading bearing joint 1 by the bearing and transmission of the centrifugal force through the mating end face of the columnar stepped structure and the stepped columnar cavity.

[0042] The clamping and locking device provided in this embodiment of the invention transmits centrifugal force from centrifugal actuator 4 to wire rope 3, avoiding the existing test method of centrifugal force loading for rotor components. Since the wire rope 3 and centrifugal actuator are connected by a threaded joint, fatigue fracture of the threaded joint often occurs during the reciprocating motion of the centrifugal force loading process, which seriously affects the normal implementation of the loading test.

[0043] In one implementation of this invention, the connecting assembly for connecting the upper centrifugal force transmission connector 7 and the lower centrifugal force transmission connector 8 includes, for example, a centrifugal force bearing pin 9 and a bearing pin fixing nut 10.

[0044] like Figure 1 and Figure 2 As shown, the upper centrifugal force transmission connector 7 and the lower centrifugal force transmission connector 8 are respectively provided with connecting pin holes in the middle of their semi-cylindrical walls. These holes are used to install the centrifugal force bearing pin 9 through one side of the connecting pin hole and to install the bearing pin fixing nut 10 through the connecting pin hole on the other side. This allows the centrifugal force bearing pin 9 and the bearing pin fixing nut 10, which are installed opposite to each other from both sides, to be fixedly connected inside the upper centrifugal force transmission connector 7 and the lower centrifugal force transmission connector 8 by threads, so as to connect the upper centrifugal force transmission connector 7 and the lower centrifugal force transmission connector 8 into an integral structure.

[0045] In this implementation, the centrifugal force bearing pin 9 and the bearing pin fixing nut 10 are not only used to fix the upper centrifugal force transmission joint 7 and the lower centrifugal force transmission joint 8, but also used to transmit centrifugal force.

[0046] In one implementation of this invention, the clamping and locking device may further include an anti-detachment sleeve 11.

[0047] like Figure 1 and Figure 2 As shown, the anti-detachment sleeve 11 is fitted outside the integral columnar joint formed by the upper centrifugal force transmission joint 7 and the lower centrifugal force transmission joint 8, and is located outside the centrifugal force bearing pin 9 and the bearing pin fixing nut 10.

[0048] Furthermore, the clamping and locking device in this implementation may also include: a first loading and fixing nut 12 and a second loading and fixing nut 13;

[0049] The upper centrifugal force transmission connector 7 and the lower centrifugal force transmission connector 8 are provided with external threads. After the anti-detachment sleeve 11 is sleeved on the outside of the integral columnar connector, it is screwed to the outside of the integral columnar connector formed by the upper centrifugal force transmission connector 7 and the lower centrifugal force transmission connector 8 by the first loading fixing nut 12 and the second loading fixing nut 13, and is located at both ends of the anti-detachment sleeve 11 respectively.

[0050] In this implementation, an anti-detachment sleeve 11 is used to prevent the centrifugal force bearing pin 9 and the bearing pin fixing nut 10 from falling off. Furthermore, a first loading fixing nut 12 and a second loading fixing nut 13 are used to prevent the anti-detachment sleeve 11, the centrifugal force bearing pin 9 and the bearing pin fixing nut 10 from falling off, and to further fix the upper centrifugal force transmission joint 7 and the lower centrifugal force transmission joint 8.

[0051] Example 2:

[0052] Based on the clamping and locking device provided in the above embodiments of the present invention, the present invention also provides a centrifugal force loading mechanism, such as... Figure 3 The diagram shown is a structural schematic of a centrifugal force loading mechanism provided in an embodiment of the present invention. Figure 3 The enlarged schematic diagram shows the clamping and locking device. For example... Figure 4 As shown, Figure 3 The illustrated embodiment provides a three-dimensional structural diagram of the centrifugal force loading mechanism. Figure 4 The enlarged schematic diagram shows the clamping and locking device.

[0053] Reference Figure 3 and Figure 4 As shown, the centrifugal loading mechanism provided in this embodiment of the invention comprises: a centrifugal loading bearing joint 1, a wire rope connecting assembly 2, a wire rope 3, a centrifugal actuator 4, an actuator connecting pin 5, a test bearing platform 6, and a clamping and locking device for connecting the wire rope connecting assembly 2 and the centrifugal actuator 4. The clamping and locking device in this embodiment is the clamping and locking device provided in any of the above embodiments.

[0054] In this embodiment of the invention, one end of the centrifugal force loading bearing joint 1 is connected to the wire rope connecting assembly 2, and the other end is sleeved and clamped on one end of the clamping and locking device. The loading end of the centrifugal force actuator 4 is sleeved and clamped on the other end of the clamping and locking device. The fixed end of the centrifugal force actuator 4 is fixedly connected to the test bearing platform 6 through the actuator connecting pin 5. Wire ropes 3 are respectively hinged on both sides of the wire rope connecting assembly 2.

[0055] Based on the structure of the centrifugal loading mechanism provided in the embodiments of the present invention, the test method of the centrifugal loading mechanism is as follows: centrifugal force is applied by the centrifugal actuator 4, and the centrifugal force is sequentially transmitted to the centrifugal loading bearing joint 1 and the wire rope connection assembly 2 through the clamping and locking device, and the centrifugal force transmission between the centrifugal loading bearing joint 1 and the wire rope 3 is realized through the wire rope connection assembly 2.

[0056] In one embodiment of the present invention, one end of the centrifugal force loading bearing joint 1 is configured as a columnar step structure for nesting in the stepped columnar cavity at one end of the clamping and locking device; similarly, the loading end of the centrifugal force actuator 4 is configured as a columnar step structure, which can be achieved through simple processing, for nesting in the stepped columnar cavity at the other end of the clamping and locking device.

[0057] In this implementation, the centrifugal force is transmitted to the steel wire rope 3 at the rear end of the load-bearing joint 1 by the cooperating end face of the columnar stepped structure and the stepped columnar cavity.

[0058] In this embodiment of the invention, a clamping and locking device, a centrifugal force loading bearing joint 1, and a wire rope connection assembly 2 are used to replace the threaded connection between the wire rope 3 and the centrifugal force actuator in the traditional solution. This avoids the problem of existing test methods for centrifugal force loading of rotor components. Because the wire rope 3 and the centrifugal force actuator are connected by a threaded joint, fatigue fracture of the threaded joint often occurs during the reciprocating motion of the centrifugal force loading process, which seriously affects the normal implementation of the loading test.

[0059] In one implementation of this invention, such as Figure 3 and Figure 4 As shown, the wire rope connecting assembly 2 includes: a pin assembly 2a, a wire rope transition connecting rod 2b, a first connecting pin 2c, and a second connecting pin 2d.

[0060] In this implementation, the pin in the pin assembly 2a passes vertically through the centrifugal force loading bearing joint 1 and is hinged to the end away from the clamping and locking device. Pin end caps at both ends of the pin restrict its axial position. The two ends of the two pin end caps are respectively hinged to one end of a wire rope transition connecting rod 2b by a second connecting pin 2d. The other end of each wire rope transition connecting rod 2b is respectively hinged to the end of the wire rope 3 by a first connecting pin 2c on the double ears, forming a centrifugal force transmission path between the wire rope 3 and the centrifugal force actuator 4.

[0061] The clamping and locking device and centrifugal force loading mechanism provided in this invention, on the one hand, replace the threaded connection between the wire rope 3 and the centrifugal force actuator in the traditional solution with a structure consisting of a clamping and locking device, a centrifugal force loading bearing joint 1, and a wire rope connection assembly 2. This avoids the problem in existing test methods for centrifugal force loading of rotor components, where the wire rope 3 and the centrifugal force actuator are connected by a threaded joint, leading to frequent fatigue fracture of the threaded joint during the reciprocating motion of the centrifugal force loading process, which seriously affects the normal implementation of the loading test. On the other hand, the clamping and locking device provided by this invention mainly... The load transmission relies on the centrifugal force loading joint 1, the upper centrifugal force transmission joint 7, the lower centrifugal force transmission joint 8, the centrifugal force bearing pin 9, and the columnar stepped structure at the loading end of the centrifugal force actuator 4. This eliminates the threaded connection link during loading, avoiding the risk of fatigue fracture of the threaded connection. Furthermore, the clamping and locking device provided in this embodiment uses a combination of an anti-loosening sleeve 11, a first loading fixing nut 12, and a second loading fixing nut 13, which not only fixes the upper centrifugal force transmission joint 7 and the lower centrifugal force transmission joint 8, but also effectively suppresses the loosening and jerking of the centrifugal force bearing pin 9. The technical solution provided in this embodiment has the following beneficial effects:

[0062] This clamping and locking device is easy to install and has a strong load-bearing capacity. It successfully solves the problem of frequent fatigue fractures in centrifugal force loading structures that rely on threaded connections for load bearing. The main load transmission relies on a stepped structure and a pin shaft, eliminating the threaded connection link during loading and avoiding the risk of fatigue fracture of the threaded connection. In cases where threaded load-bearing components break under other loads, modifications can be made accordingly.

[0063] While the embodiments disclosed in this invention are as described above, they are merely illustrative of the embodiments to facilitate understanding of the invention and are not intended to limit the invention. Any person skilled in the art to which this invention pertains may make any modifications and variations in the form and details of the implementation without departing from the spirit and scope disclosed herein; however, the scope of patent protection for this invention shall still be determined by the scope defined in the appended claims.

Claims

1. A clamping and locking device, characterized in that, The clamping and locking device is applied in the centrifugal force loading mechanism of the rotor component and is used to connect the wire rope connecting assembly (2) and the centrifugal force actuator (4). The clamping and locking device includes: centrifugal force transmission upper connector (7), centrifugal force transmission lower connector (8) and connecting assembly; Among them, the centrifugal force transmission upper connector (7) and the centrifugal force transmission lower connector (8) are respectively set as semi-cylindrical structure connectors, and are arranged in a symmetrical manner and fixedly connected by connecting components to form an integral columnar connector. The upper centrifugal force transmission connector (7) and the lower centrifugal force transmission connector (8) are respectively provided with stepped grooves at both ends, so that after the upper centrifugal force transmission connector (7) and the lower centrifugal force transmission connector (8) are installed relative to each other, the two ends are respectively formed as stepped columnar cavities. The centrifugal force loading bearing connector (1) is installed by nesting the stepped columnar cavity at one end, and the loading end of the centrifugal force actuator (4) is installed by nesting the stepped columnar cavity at the other end. The connecting assembly includes: a centrifugal force bearing pin (9) and a bearing pin fixing nut (10). The upper centrifugal force transmission connector (7) and the lower centrifugal force transmission connector (8) are respectively provided with connecting pin holes in the middle of their semi-cylindrical walls. The connecting pin holes on one side are used to install the centrifugal force bearing pin (9), and the connecting pin holes on the other side are used to install the bearing pin fixing nut (10). The centrifugal force bearing pin (9) and the bearing pin fixing nut (10) installed from opposite sides are fixedly connected by threads inside the upper centrifugal force transmission connector (7) and the lower centrifugal force transmission connector (8) to connect the upper centrifugal force transmission connector (7) and the lower centrifugal force transmission connector (8) into an integral structure. The clamping and locking device further includes: an anti-loosening sleeve (11), a first loading fixing nut (12), and a second loading fixing nut (13); The anti-detachment sleeve (11) is sleeved on the outside of the integral columnar joint formed by the upper centrifugal force transmission joint (7) and the lower centrifugal force transmission joint (8), and is located outside of the centrifugal force bearing pin (9) and the bearing pin fixing nut (10). The upper centrifugal force transmission connector (7) and the lower centrifugal force transmission connector (8) are provided with external threads. They are screwed onto the outside of the integral columnar connector formed by the upper centrifugal force transmission connector (7) and the lower centrifugal force transmission connector (8) by the first loading fixing nut (12) and the second loading fixing nut (13), and are respectively located at both ends of the anti-detachment sleeve (11). The combination structure of the anti-detachment sleeve (11), the first loading fixing nut (12), and the second loading fixing nut (13) is used to fix the upper joint (7) and the lower joint (8) of the centrifugal force transmission, and also to suppress the detachment and swaying of the centrifugal force bearing pin (9).

2. The clamping and locking device according to claim 1, characterized in that, The clamping and locking device is used to connect the stepped columnar cavities at both ends of the integral columnar joint formed by the centrifugal force transmission upper joint (7) and the centrifugal force transmission lower joint (8) with the columnar stepped structure at the loading end of the centrifugal force actuator (4) and the columnar stepped structure at the end of the centrifugal force loading bearing joint (1). The centrifugal force is transmitted to the steel wire rope (3) at the rear end of the loading bearing joint (1) by the bearing and transmission of centrifugal force through the mating end face of the columnar stepped structure and the stepped columnar cavity.

3. A centrifugal force loading mechanism, characterized in that, include: Centrifugal loading load-bearing joint (1), wire rope connection assembly (2), wire rope (3), centrifugal actuator (4), actuator connecting pin (5), test load-bearing platform (6), and clamping and locking device for connecting the wire rope connection assembly (2) and the centrifugal actuator (4), wherein the clamping and locking device is the clamping and locking device according to any one of claims 1 to 2; One end of the centrifugal force loading bearing joint (1) is connected to the wire rope connecting assembly (2), and the other end is sleeved and clamped on one end of the clamping and locking device. The loading end of the centrifugal force actuator (4) is sleeved and clamped on the other end of the clamping and locking device. The fixed end of the centrifugal force actuator (4) is fixedly connected to the test bearing platform (6) through the actuator connecting pin (5). Wire ropes (3) are respectively hinged on both sides of the wire rope connecting assembly (2).

4. The centrifugal force loading mechanism according to claim 3, characterized in that, The centrifugal force loading mechanism is used to apply centrifugal force through the centrifugal force actuator (4). The centrifugal force is transmitted sequentially to the centrifugal force loading bearing joint (1) and the wire rope connection assembly (2) through the clamping and locking device, and the centrifugal force transmission between the centrifugal force loading bearing joint (1) and the wire rope (3) is realized through the wire rope connection assembly (2).

5. The centrifugal force loading mechanism according to claim 3, characterized in that, One end of the centrifugal force loading bearing joint (1) is configured as a columnar stepped structure, which is used to be nested in the stepped columnar cavity at one end of the clamping and locking device; The loading end of the centrifugal actuator (4) is configured as a columnar stepped structure, which is used to be nested in the stepped columnar cavity at the other end of the clamping and locking device; The centrifugal force is transmitted to the steel wire rope (3) at the rear end of the load-bearing joint (1) by the joint between the columnar stepped structure and the stepped columnar cavity.

6. The centrifugal force loading mechanism according to claim 3, characterized in that, The wire rope connection assembly (2) includes: a pin assembly (2a), a wire rope transition connecting rod (2b), a first connecting pin (2c), and a second connecting pin (2d); In the pin assembly (2a), the pin passes vertically through the centrifugal force loading bearing joint (1) and is hinged to the end away from the clamping and locking device. The pin end caps at both ends of the pin restrict its axial position. The two ends of the two pin end caps are respectively hinged to one end of a wire rope transition connecting rod (2b) by a second connecting pin (2d). The other end of each wire rope transition connecting rod (2b) is respectively hinged to the end of a wire rope (3) by a first connecting pin (2c) on the double ears, forming a centrifugal force transmission path between the wire rope (3) and the centrifugal force actuator (4).

Images