A thrust rod test device

Abstract

The present invention relates to a thrust rod test device, which comprises: a base, on which a fixing device is installed, and the fixing device can be used to fix the vehicle frame end of a combined thrust rod; a loading device, which is installed on the base, the loading device is connected with a mounting fixture, and the loading device is used to apply a load to the mounting fixture, and the mounting fixture can be used to fix the axle end of the combined thrust rod; the mounting fixture includes a fixture body, and a first fixing block, a second fixing block and a third fixing block are arranged at intervals on the fixture body; the first fixing block and the second fixing block enclose a first installation groove, the second fixing block and the third fixing block enclose a second installation groove, and the first fixing block, the second fixing block and the third fixing block are all provided with first installation holes at one end close to the first installation groove and the second installation groove. The installation of the combined thrust rod with a new structure can be realized, which is more in line with the installation method of the thrust rod during actual vehicle loading, and the test results are more reliable.

Description

Technical Field

[0001] The present invention relates to the field of automotive suspension testing, and particularly to a thrust rod test device. Background Art

[0002] Currently, in order to transmit the longitudinal force between the vehicle frame and the axle, a thrust rod is provided between the vehicle frame and the axle. The thrust rod is widely used in the non-independent suspension of heavy trucks or buses, connecting the vehicle frame and the axle. In addition to the positioning function, it mainly transmits the traction force, braking force, and lateral reaction torque to ensure the driving safety and stability of the vehicle. Since the fatigue conditions borne by the thrust rod are complex, phenomena such as the failure of the thrust rod ball joint, rod body, or ball head retaining ring may occur during actual operation, affecting the vehicle operation safety and stability. Therefore, before the thrust rod assembly is officially installed on the vehicle, a reasonable fatigue test method and device must be used to verify its fatigue reliability, and this is used as the basis or reference for product qualification.

[0003] In the related art, in order to measure the relevant performance of the thrust rod, the thrust rod is fixed at one end to the axle and installed in the corresponding fixture, and the end of the thrust rod fixed to the vehicle frame is fixed. The fixture is driven to move by a related loading mechanism to simulate the displacement or deflection of the axle relative to the vehicle frame during driving, and the relevant tests of the thrust rod are realized.

[0004] However, a newly developed type of combined thrust rod has been developed currently. One end of it installed on the axle extends with two protrusions, and each protrusion is fixedly connected to the axle. The existing test devices are difficult to simulate the installation form of the combined thrust rod on the vehicle. Summary of the Invention

[0005] An embodiment of the present invention provides a thrust rod test device to solve the problem that the existing test devices in the related art are difficult to simulate the installation form of the combined thrust rod on the vehicle.

[0006] In a first aspect, a thrust rod test device is provided, which includes: a base, on which a fixing device is installed, and the fixing device can be used to fix the vehicle frame end of the combined thrust rod; a loading device, the loading device is installed on the base, the loading device is connected with an installation fixture, and the loading device is used to load the installation fixture, and the installation fixture can be used to fix the axle end of the combined thrust rod; the installation fixture includes a fixture main body, on which a first fixing block, a second fixing block, and a third fixing block are arranged at intervals; the first fixing block and the second fixing block enclose a first installation groove, the second fixing block and the third fixing block enclose a second installation groove, and the first fixing block, the second fixing block, and the third fixing block are all provided with first installation holes at one end close to the first installation groove and the second installation groove.

[0007] In some embodiments, the fixture body is provided with a third installation groove and a plurality of second installation holes. The second installation holes are symmetrically arranged on both sides of the third installation groove. The installation fixture can be used to fix the axle end of the V-shaped thrust rod.

[0008] In some embodiments, a boss protrudes from one end of the first fixing block close to the second fixing block. The first installation hole is formed in the boss, and the boss and the fixture body enclose a wrench space in the direction extending along the first installation hole.

[0009] In some embodiments, the loading device includes a first loading part, and the first loading part is used to drive the installation fixture away from or close to the fixing device.

[0010] In some embodiments, the first loading part includes a first loading unit. The first loading unit is rotationally connected to a connecting plate through a universal joint. A plurality of parallel connecting rods are connected to the connecting plate away from the first loading unit. One ends of the connecting rods away from the connecting plate are all rotationally connected to the installation fixture. The rotation axes at both ends of the connecting rods are parallel and perpendicular to the connecting rods.

[0011] In some embodiments, the loading device includes a second loading part, and the second loading part is used to drive the installation fixture to rotate to twist the thrust rod.

[0012] In some embodiments, the second loading part includes two second loading units arranged at intervals. The telescopic direction of the second loading unit is perpendicular to the arrangement direction of the first fixing block, the second fixing block and the third fixing block. The two second loading units are respectively arranged at both ends of the installation fixture, and the two second loading units can telescopically independently.

[0013] In some embodiments, the loading device includes a third loading part. The third loading part includes a third loading unit. The third loading unit is arranged at the end of the installation fixture, and the telescopic direction of the third loading unit is perpendicular to the second loading unit.

[0014] In some embodiments, one end of the third loading unit is rotationally connected to the installation fixture through a universal joint, and the other end of the third loading unit is rotationally connected to the base through a universal joint.

[0015] In some embodiments, the thrust rod test device includes a first guide rod and a second guide rod perpendicular to each other. The first guide rod is installed on the base, the second guide rod is installed on the first guide rod, the second guide rod can move along the extending direction of the first guide rod, one end of the second loading unit away from the installation fixture is installed on the second guide rod, and the second loading unit can move along the extending direction of the second guide rod.

[0016] The beneficial effects brought by the technical solution provided by the present invention include:

[0017] An embodiment of the present invention provides a thrust rod test device. Since a first fixing block, a second fixing block, and a third fixing block are installed on the fixture main body at intervals. The three fixing blocks arranged at intervals form a first installation groove and a second installation groove. The two protrusions at the axle end of the combined thrust rod can be respectively installed in the two installation grooves, and the pin shaft of each protrusion is fixed to the first installation hole through a bolt, so that the connection mode of each fixing point at the axle end of the thrust rod is the same as that in actual vehicle installation, realizing the fixation of the axle end of the thrust rod, and the fixation of the frame end of the thrust rod is realized through the fixing device. Combining the fixing device and the installation fixture can simulate the installation form of the thrust rod on the whole vehicle. It is closer to the actual installation state of the combined thrust rod on the whole vehicle. During the test, the loading device is used to load the installation fixture to drive the installation fixture to move relative to the fixing device. The movement of the installation fixture simulates the offset of the axle relative to the frame, realizing the construction of the force condition of the thrust rod during vehicle driving. The loading device is used to load the installation fixture, and the performance of the thrust rod is judged by detecting relevant indicators, completing the relevant tests of the thrust rod. Therefore, the installation of the combined thrust rod with a new structure can be realized, which is more in line with the installation method of the thrust rod during actual vehicle installation, and the test results are more reliable. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a three-dimensional structure schematic diagram of a thrust rod test device provided by an embodiment of the present invention;

[0020] Figure 2 It is a three-dimensional structure schematic diagram of a thrust rod test device provided by an embodiment of the present invention after removing the gantry;

[0021] Figure 3 For Figure 2 The top view structure schematic diagram;

[0022] Figure 4 For Figure 2 The left view;

[0023] Figure 5 It is a three-dimensional structure schematic diagram of the installation fixture when the second fixing block is installed;

[0024] Figure 6Schematic three-dimensional structure diagram when the second fixing block is disassembled from the installation fixture.

[0025] In the figure:

[0026] 1. Fixing device;

[0027] 2. Installation fixture; 21. Fixture body; 211. Third installation groove; 212. Second installation hole; 22. First fixing block; 23. Second fixing block; 221. Boss; 24. Third fixing block; 25. First installation groove; 26. Second installation groove; 27. First installation hole;

[0028] 3. Loading device; 31. First loading part; 311. First loading unit; 312. Connecting plate; 313. Connecting rod; 32. Second loading part; 321. Second loading unit; 33. Third loading part; 331. Third loading unit;

[0029] 4. Wrench space; 5. First guide rod; 6. Second guide rod. Detailed implementation mode

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] The embodiments of the present invention provide a thrust rod test device, which can solve the technical problem that the existing test devices are difficult to simulate the installation state of the combined thrust rod on a vehicle.

[0032] See Figures 1 to 5As shown in the figure, a thrust rod test device provided by an embodiment of the present invention may include: a base, on which a fixing device 1 may be installed. The fixing device 1 can be used to fix the vehicle frame end of the combined thrust rod; a loading device 3, which is installed on the base. The loading device 3 is connected with a mounting fixture 2. The loading device 3 is used to load the mounting fixture 2, and the mounting fixture 2 can be used to fix the axle end of the combined thrust rod; the mounting fixture 2 may include a fixture body 21, and a first fixing block 22, a second fixing block 23 and a third fixing block 24 may be arranged at intervals on the fixture body 21; the first fixing block 22 and the second fixing block 23 enclose a first mounting groove 25, and the second fixing block 23 and the third fixing block 24 enclose a second mounting groove 26. The first fixing block 22, the second fixing block 23 and the third fixing block 24 may be provided with first mounting holes 27 at one end close to the first mounting groove 25 and the second mounting groove 26. That is to say, the fixing of the axle end of the combined thrust rod is realized through the mounting fixture 2, wherein one protrusion of the axle end of the combined thrust rod is installed through the first mounting groove 25, and the other protrusion of the axle end of the combined thrust rod is installed through the second mounting groove 26. The axle end of the combined thrust rod is fixed by using the first mounting holes 27 provided at the ends of the three fixing blocks. In this embodiment, the first fixing block 22 is provided with a first mounting hole 27 at one end close to the first mounting groove 25, the third fixing block 24 is also provided with a first mounting hole 27 at one end close to the second mounting groove 26, and both ends of the second fixing block 23 are provided with first mounting holes 27. Among them, the first mounting hole 27 on the side of the second fixing block 23 close to the first fixing block 22 and the first mounting hole 27 of the first fixing block 22 are symmetrically arranged on both sides of the first mounting groove 25, and the first mounting hole 27 on the side of the second fixing block 23 close to the third fixing block 24 and the first mounting hole 27 of the third fixing block 24 are symmetrically arranged on both sides of the second mounting groove 26. The pin fixing of the vehicle frame end of the combined thrust rod is realized through the fixing device 1 by the first mounting holes 27. In this embodiment, two fixing devices 1 are installed on the base, and each fixing device 1 fixes one vehicle frame end of the combined thrust rod, and the positions of the two fixing devices 1 on the base can be adjusted to adapt to the installation of combined thrust rods with different lengths or different angles. Among them, in this embodiment, the fixing device 1 includes a bottom plate, a vertical plate and a reinforcing plate. The bottom plate is fixed on the base, the vertical plate can be used to fix the vehicle frame end of the combined thrust rod, and the reinforcing plate is used to connect the bottom plate and the vertical plate to prevent the vertical plate from moving with the thrust rod to be tested during the loading process of the loading device 3. In this embodiment, the fixture body 21 is formed by assembling multiple plate bodies into a cube. The front side of the cube faces the fixing device 1 for the thrust rod to be tested to extend out of the fixture body 21. The back side, the top side and the left and right side surfaces of the fixture body 21 are all connected to the loading device 3. Different loading units of the loading device 3 are used to drive the mounting fixture 2 to move, so as to simulate the deflection or displacement of the axle relative to the vehicle frame and realize the fatigue test of the thrust rod.Since the three fixed blocks are arranged at intervals, two spaced mounting grooves are formed. These can be used for the installation of the axle end of the combined thrust rod, and the pin shafts of each protrusion are fixed through the mounting holes on the fixed blocks. Compared with installing the two protrusions of the combined thrust rod axle end in one groove, fixing the two protrusions of the thrust rod separately is more in line with the actual installation situation. The reliability of the test results measured by this test device is higher.

[0033] See Figure 5 and Figure 6 As shown, preferably, the fixture body 21 can be provided with a third mounting groove 211 and a number of second mounting holes 212. The second mounting holes 212 are symmetrically arranged on both sides of the third mounting groove 211. The mounting fixture 2 can be used to fix the axle end of the V-shaped thrust rod. In this embodiment, by disassembling or installing the second fixed block 23, it is adapted to the installation of different types of thrust rods. The third mounting groove 211 is partially blocked by the second fixed block 23, and at this time, the installation of the combined thrust rod can be satisfied. By disassembling the second fixed block 23 from the fixture body 21, the third mounting groove 211 is completely exposed, and at this time, the installation of the V-shaped thrust rod can be satisfied. By providing the third mounting groove 211 for the axle end of the V-shaped thrust rod to be inserted, the pin shafts of the axle end of the V-shaped thrust rod are fixed through the second mounting holes 212 symmetrically arranged on both sides of the third mounting groove 211. In this embodiment, the fixture body 21 is also provided with fixing holes perpendicular to the side wall of the third mounting groove 211, and the mounting holes of the thrust rod protrusions are fixed through the fixing holes communicating with the third mounting groove 211 to meet the installation of relevant models of V-shaped thrust rods. The mounting fixture 2 equipped with the second fixed block 23 can also satisfy the installation of the two-point type thrust rod. The axle end protrusion of the two-point type thrust rod can be installed on the first mounting groove 25 or the second mounting groove 26, and the axle end of the I-shaped thrust rod is fixed through the first mounting hole 27. That is, this experimental device can simultaneously satisfy the tests of I-shaped, V-shaped, and combined thrust rods. In this embodiment, the fixture body 21 is provided with a groove, and the second fixed block 23 is provided with a protrusion matching the groove. When installing the second fixed block 23, the protrusion is first inserted into the groove to meet the positioning of the second fixed block 23, and then the second fixed block 23 is fixed to the fixture body 21 through bolts. In this embodiment, the first fixed block 22 and the third fixed block 24 are also detachable structures. By replacing the fixed blocks of different specifications, the first mounting groove 25 and the second mounting groove 26 of various sizes can be formed to adapt to the fixing of different specifications of combined thrust rods. At the same time, the fixture body 21 is also provided with grooves for positioning the first fixed block 22 and the third fixed block 24. By inserting the end of the first fixed block 22 into the groove, the installation height of each fixed block can be better controlled to make the mounting surfaces of each fixed block for supporting the thrust rod flush.

[0034] See Figure 5 and Figure 6As shown, preferably, one end of the first fixing block 22 close to the second fixing block 23 can extend with a boss 221. A first mounting hole 27 can be provided on the boss 221. And the boss 221 and the fixture body 21 enclose a wrench space 4 in the direction along the extension of the first mounting hole 27. That is to say, after the first fixing block 22 is fixed to the fixture body 21, a wrench space 4 is formed between the boss 221 and the fixture body 21. At the same time, since the first mounting hole 27 is provided on the boss 221, a wrench or a hand can be inserted into the wrench space 4 to tighten the bolt when installing the bolt in the first mounting hole 27. This improves the convenience of threadedly connecting the thrust rod and the mounting fixture 2. In this embodiment, the second fixing block 23 and the third fixing block 24 are also correspondingly provided with bosses 221, and the bosses 221 provided on the fixing blocks have the same height. At the same time, the wrench space 4 communicates with the mounting groove for fixing the thrust rod, so that two adjacent wrench spaces 4 communicate to form a larger activity space, further expanding the activity range of the wrench or the hand and facilitating the tightening of the bolt.

[0035] See Figures 1 to 4 As shown, preferably, the loading device 3 can include a first loading part 31, and the first loading part 31 is used to drive the mounting fixture 2 away from or close to the fixing device 1. That is to say, by driving the mounting fixture 2 away from or close to the fixing device 1 through the first loading part 31, since the mounting fixture 2 is used to fix the axle end of the thrust rod, and the fixing device 1 is used to fix the frame end of the thrust rod. Through the first loading part 31, the offset of the axle relative to the frame in the vehicle traveling direction under the vehicle acceleration or braking conditions can be simulated.

[0036] See Figures 1 to 4 As shown, preferably, the first loading part 31 can include a first loading unit 311. The first loading unit 311 can be rotationally connected with a connecting plate 312 through a universal joint. The connecting plate 312 is connected with a plurality of parallel connecting rods 313 away from the first loading unit 311. One ends of the connecting rods 313 away from the connecting plate 312 are all rotationally connected with the mounting fixture 2. The rotation axes at both ends of the connecting rods 313 are parallel and perpendicular to the connecting rods 313. That is to say, universal joints are provided at both ends of the first loading unit 311 to adapt to the deflection of the mounting fixture 2 in the left-right direction or the vertical direction of the vehicle. The acting force in the vehicle forward direction is transmitted through the connecting plate 312 rotationally connecting a plurality of parallel connecting rods 313, and a plurality of parallelograms are formed to ensure that the connecting plate 312 is always parallel to the mounting fixture 2. At the same time, the multi-rod connection can prevent the mounting fixture 2 from deflecting due to single-point force. When the mounting fixture 2 is loaded in other directions, the connecting plate 312 does not affect the deflection of the mounting fixture 2. This makes the test conditions more in line with the actual load conditions during use.

[0037] See Figures 1 to 4As shown, preferably, the loading device 3 may include a second loading part 32. The second loading part 32 is used to drive the mounting fixture 2 to rotate, so as to twist the thrust rod. That is to say, the rotation of the mounting fixture 2 can be realized through the second loading part 32 to simulate the deflection of the axle relative to the vehicle frame under the vehicle roll condition. In this embodiment, two parallel telescopic cylinders are arranged on both sides of the mounting fixture 2. The rotation of the mounting fixture 2 is realized by controlling one cylinder to extend and the other to contract. In other embodiments, the rotation of the mounting fixture 2 can also be directly driven by a rotary component such as a motor or a hydraulic motor to simulate the roll condition. In this embodiment, the second loading part 32 can be used alone to load the mounting fixture 2 to measure the relevant performance of the thrust rod to be tested under the roll condition. The first loading part 31 and the second loading part 32 can also be used to load the mounting fixture 2 simultaneously to simulate the performance of the thrust rod under complex conditions.

[0038] See Figures 1 to 4 As shown, preferably, the second loading part 32 may include two second loading units 321 arranged at intervals. The telescopic direction of the second loading unit 321 may be perpendicular to the arrangement direction of the first fixing block 22, the second fixing block 23 and the third fixing block 24. The two second loading units 321 are respectively arranged at both ends of the mounting fixture 2, and the two second loading units 321 can be independently telescoped. That is to say, the rotation of the mounting fixture 2 can be realized by controlling one second loading unit to extend and the other to contract, so as to realize the simulation of the roll condition. Among them, the second loading unit 321 may be a hydraulic cylinder. Compared with driving the rotation of the mounting fixture 2 by a rotating motor, the undulation of the wheel can be better simulated by the telescoping of the two second loading units 321.

[0039] See Figures 1 to 4 As shown, preferably, the loading device 3 may include a third loading part 33. The third loading part 33 may include a third loading unit 331. The third loading unit 331 is arranged at the end of the mounting fixture 2, and the telescopic direction of the third loading unit 331 is perpendicular to that of the second loading unit 321. That is to say, the mounting fixture 2 can be driven to move horizontally through the third loading part 33. In this embodiment, the loading direction of the third loading part 33 is perpendicular to the loading direction of the first loading part 31, and the third loading unit 331 is perpendicular to the second loading unit 321. The lateral force during vehicle driving can be simulated through the third loading unit 331. In this embodiment, a third loading unit 331 is arranged at each end of the mounting fixture 2, and the axes of the two third loading units 331 are collinear to prevent the third loading unit 331 from driving the mounting fixture 2 to rotate.

[0040] See Figures 1 to 4As shown, preferably, one end of the third loading unit 331 can be rotatably connected to the mounting fixture 2 through a universal joint, and the other end of the third loading unit 331 can be rotatably connected to the base through a universal joint. That is to say, by setting universal joints at both ends, when the mounting fixture 2 deflects due to the load, one end of the third loading unit 331 connected to the mounting fixture 2 will move together with the mounting fixture 2, which can better adapt to the actual test environment compared with a rigid connection.

[0041] See Figure 1 As shown, preferably, the thrust rod test device may include a first guide rod 5 and a second guide rod 6 that are perpendicular to each other. The first guide rod 5 is installed on the base, the second guide rod 6 is installed on the first guide rod 5, the second guide rod 6 can move along the extending direction of the first guide rod 5, and one end of the second loading unit 321 away from the mounting fixture 2 is installed on the second guide rod 6, and the second loading unit 321 can move along the extending direction of the second guide rod 6. That is to say, the position of the second loading unit 321 can be conveniently adjusted to ensure that the second loading unit 321 loads the mounting fixture 2 in the vertical direction as much as possible.

[0042] The principle of a thrust rod test device provided by an embodiment of the present invention is as follows:

[0043] The two frame ends of the combined thrust rod are fixed by the fixing device 1, the first mounting groove 25 and the second mounting groove 26 of the mounting fixture 2 are used for positioning the two protrusions at the axle end of the combined thrust rod, and the mounting holes of the combined thrust rod are bolted through the first mounting holes 27 provided on each fixing block, so as to simulate the installation form of the combined thrust rod on the vehicle. The various working conditions that the thrust rod may be subjected to during the whole vehicle form process are simulated by loading the mounting fixture 2 through the loading device 3. It can meet the tests of the combined thrust rod. Since the three fixing blocks are arranged at intervals, two spaced mounting grooves are formed. It can be used for the installation of the axle end of the combined thrust rod, and the pin shafts of each protrusion are fixed through the mounting holes on the fixing blocks. Compared with installing the two protrusions at the axle end of the combined thrust rod in a single groove body, fixing the two protrusions of the thrust rod separately is more in line with the actual installation situation. The credibility of the test results measured by this test device is higher.

[0044] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. Unless otherwise clearly specified and defined, the terms "installed", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] It should be noted that in the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0046] The above are only specific embodiments of the present invention, which enable those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A thrust rod test device, characterized in that, It includes: A base on which a fixing device (1) is installed, and the fixing device (1) can be used to fix the vehicle frame end of the combined thrust rod; A loading device (3) installed on the base. The loading device (3) is connected with a mounting fixture (2). The loading device (3) is used to apply a load to the mounting fixture (2), and the mounting fixture (2) can be used to fix the axle end of the combined thrust rod; The mounting fixture (2) includes a fixture body (21), and a first fixing block (22), a second fixing block (23) and a third fixing block (24) are arranged at intervals on the fixture body (21); The first fixing block (22) and the second fixing block (23) enclose a first mounting groove (25), the second fixing block (23) and the third fixing block (24) enclose a second mounting groove (26), and the first fixing block (22), the second fixing block (23) and the third fixing block (24) are all provided with first mounting holes (27) at one end close to the first mounting groove (25) and the second mounting groove (26); The fixture body (21) is provided with a third mounting groove (211) and a plurality of second mounting holes (212). The second mounting holes (212) are symmetrically arranged on both sides of the third mounting groove (211), and the mounting fixture (2) can be used to fix the axle end of the V-shaped thrust rod.

2. The thrust rod test device according to claim 1, characterized in that: A boss (221) protrudes from one end of the first fixing block (22) close to the second fixing block (23). The first mounting hole (27) is provided on the boss (221), and a wrench space (4) is formed between the boss (221) and the fixture body (21) in the extending direction of the first mounting hole (27).

3. The thrust rod test device according to claim 1, characterized in that: The loading device (3) includes a first loading part (31), and the first loading part (31) is used to drive the mounting fixture (2) to move away from or close to the fixing device (1).

4. The thrust rod test device according to claim 3, characterized in that: The first loading part (31) includes a first loading unit (311). The first loading unit (311) is rotationally connected with a connecting plate (312) through a universal joint. A plurality of parallel connecting rods (313) are connected to the connecting plate (312) far away from the first loading unit (311). One ends of the connecting rods (313) far away from the connecting plate (312) are all rotationally connected with the mounting fixture (2). The rotation axes at both ends of the connecting rods (313) are parallel and perpendicular to the connecting rods (313).

5. The thrust rod test device according to claim 1, characterized in that: The loading device (3) includes a second loading part (32), and the second loading part (32) is used to drive the mounting fixture (2) to rotate, so as to twist the thrust rod.

6. The thrust rod test device according to claim 5, characterized in that: The second loading part (32) includes two second loading units (321) arranged at intervals. The telescopic direction of the second loading unit (321) is perpendicular to the arrangement direction of the first fixing block (22), the second fixing block (23) and the third fixing block (24). The two second loading units (321) are respectively arranged at both ends of the mounting fixture (2), and the two second loading units (321) can telescopically move independently.

7. The thrust rod test device according to claim 6, wherein: The loading device (3) includes a third loading part (33). The third loading part (33) includes a third loading unit (331). The third loading unit (331) is arranged at the end of the mounting fixture (2), and the telescopic direction of the third loading unit (331) is perpendicular to that of the second loading unit (321).

8. The thrust rod test device according to claim 7, wherein: One end of the third loading unit (331) is rotatably connected to the mounting fixture (2) through a universal joint, and the other end of the third loading unit (331) is rotatably connected to the base through a universal joint.

9. The thrust rod test device according to claim 6, wherein: The thrust rod test device includes a first guide rod (5) and a second guide rod (6) that are perpendicular to each other. The first guide rod (5) is installed on the base, the second guide rod (6) is installed on the first guide rod (5), the second guide rod (6) can move along the extending direction of the first guide rod (5), one end of the second loading unit (321) away from the mounting fixture (2) is installed on the second guide rod (6), and the second loading unit (321) can move along the extending direction of the second guide rod (6).

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