Pressure loading device

Abstract

The utility model provides a pressure loading device, and the device is characterized in that the device comprises a driving mechanism which is provided with a driving end; the lever assembly comprises a lever and a pivoting assembly, the first end of the lever is connected with the driving end, and the driving end is used for driving the lever to rotate around the central axis of the pivoting assembly; the transmission assembly comprises a transmission rod, one end of the transmission rod is connected with the second end of the lever, and the other end of the transmission rod is used for outputting driving force.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle testing equipment, and particularly relates to a pressure loading device. Background Art

[0002] In the related art, the loading force of the pressure loading mechanism (such as a hydraulic actuator) provided in the pressure loading equipment needs to be greater than the test required force, so large hydraulic actuator equipment needs to be used, resulting in a large layout space required for the pressure loading equipment. At the same time, the large hydraulic actuator equipment is not convenient to carry, adjust, and operate, and a test bench needs to be built during the test process, consuming manpower. Summary of the Utility Model

[0003] In view of this, the present application aims to propose a pressure loading device to improve the driving force output effect of the pressure loading device.

[0004] To achieve the above object, the technical solution of the present application is realized as follows:

[0005] A pressure loading device includes: a driving mechanism having a driving end; a lever assembly including a lever and a pivoting assembly, a first end of the lever is connected to the driving end, and the driving end is configured to drive the lever to rotate around the central axis of the pivoting assembly; a transmission assembly including a transmission rod, one end of the transmission rod is connected to a second end of the lever, and the other end of the transmission rod is configured to output a driving force.

[0006] In some embodiments of the present application, the pivoting assembly includes: a bearing seat; a bearing mounted on the bearing seat, the lever is connected to the bearing, and the lever is rotatable around the central axis of the bearing.

[0007] In some embodiments of the present application, the bearing seat includes a first plate and a second plate that are opposite and spaced apart, the bearing is mounted on the first plate and the second plate, the lever is disposed between the first plate and the second plate, and the first plate and the second plate limit the lever in the axial direction of the bearing.

[0008] In some embodiments of the present application, the pressure loading device further includes a first pivoting assembly, the first pivoting assembly includes a first pivoting portion and a first pivoting mating portion, one of the first pivoting portion and the first pivoting mating portion is disposed at the first end of the lever, the other of the first pivoting portion and the first pivoting mating portion is disposed at the driving end, and the axial direction of the first pivoting portion is parallel to the axial direction of the bearing.

[0009] In some embodiments of the present application, the driving mechanism is used to drive the lever to swing in a first direction, and the transmission assembly further includes a guiding seat, and the guiding seat is used to guide the transmission rod in the first direction.

[0010] In some embodiments of the present application, there are a plurality of the transmission rods, and the transmission assembly further includes a first connecting seat and a second connecting seat. The plurality of transmission rods are connected between the first connecting seat and the second connecting seat, and the first connecting seat is connected to the second end of the lever. The second connecting seat is provided with an output portion, and the output portion is used to output a driving force.

[0011] In some embodiments of the present application, the pressure loading device further includes a second pivoting assembly. The second pivoting assembly includes a second pivoting portion and a second pivoting mating portion. One of the second pivoting portion and the second pivoting mating portion is provided at the second end of the lever, and the other of the second pivoting portion and the second pivoting mating portion is connected to the first connecting seat, and the axial direction of the second pivoting portion is arranged parallel to the central axis of the pivoting assembly.

[0012] In some embodiments of the present application, the pressure loading device further includes a pressure sensor. The pressure sensor is connected between the second end of the lever and the first connecting seat and is used to detect the driving force.

[0013] In some embodiments of the present application, the pressure loading device further includes:

[0014] A first mounting seat, the first mounting seat is used to mount the driving mechanism, and the height position of the driving mechanism on the first mounting seat is adjustable;

[0015] And / or, a second mounting seat, the second mounting seat is used to mount the lever assembly, the pivoting assembly is connected to the second mounting seat, and the height position of the lever assembly on the second mounting seat is adjustable;

[0016] And / or, a third mounting seat, the third mounting seat is used to mount the transmission assembly, and the height position of the transmission assembly on the third mounting seat is adjustable;

[0017] And / or, a fourth mounting seat, the fourth mounting seat is provided with a fixing portion, the fixing portion is used to fix to a test piece, and the height position of the fixing portion on the fourth mounting seat is adjustable.

[0018] In some embodiments of the present application, a power arm is formed between the first end of the lever and the pivoting assembly, a resistance arm is formed between the second end of the lever and the pivoting assembly, and the length of the power arm is greater than the length of the resistance arm.

[0019] Compared with the prior art, the pressure loading device described in the present application has at least the following advantages:

[0020] (1) A lever assembly is arranged between the driving mechanism and the transmission assembly. Through the lever assembly, the driving force output by the driving mechanism can be amplified, and the amplified driving force is loaded on the test piece through the transmission assembly, thereby reducing the requirement for the maximum output driving force of the driving mechanism. There is no need to set up a large driving device, saving the layout space and reducing the cost at the same time.

[0021] (2) The driving mechanism, the lever assembly, the transmission assembly, and the test piece can all be installed and fixed through the mounting seat structure (i.e., the above-mentioned first mounting seat, second mounting seat, third mounting seat, and fourth mounting seat), so as to arrange the above devices at a preset position by adjusting the position of the mounting seat structure, and the height position of the above devices can be adjusted by adjusting the mounting plate. There is no need to build a bench, which can reduce the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0023] Figure 1 is a schematic structural diagram of the pressure loading device described in the embodiment of the present application;

[0024] Figure 2 is a top view of the pressure loading device described in the embodiment of the present application.

[0025] Description of the reference numerals:

[0026] Pressure loading device 100; Steering gear 200; Tie rod 201;

[0027] Driving mechanism 1;

[0028] Lever assembly 2; Lever 21; Power arm 211; Resistance arm 212; Rotating assembly 22; Bearing seat 221; First plate 2211; Second plate 2212; Third plate 2213; Bearing 222;

[0029] First pivot assembly 31; First pivot portion 311; First pivot mating portion 312;

[0030] Second pivot assembly 32; Second pivot portion 321; Second pivot mating portion 322;

[0031] Transmission assembly 4; Transmission rod 41; First connecting seat 421; Second connecting seat 422; Output portion 423; Guide seat 43;

[0032] Pressure sensor 5; First shaft section 51; Second shaft section 52;

[0033] The first mounting seat 61; the second mounting seat 62; the third mounting seat 63; the fourth mounting seat 64;

[0034] The first mounting plate 71; the third mounting plate 73; the fourth mounting plate 74. Detailed implementation manners

[0035] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0036] Next, the pressure loading device 100 of the present application will be described in detail with reference to the drawings and in combination with the embodiments. The pressure loading device 100 is applied to the field of vehicle testing. For example, the driving force is output through the pressure loading device 100 to simulate working conditions such as the collision of a steering gear.

[0037] The pressure loading device 100 according to the embodiment of the present application includes a driving mechanism 1, a lever assembly 2 and a transmission assembly 4.

[0038] Referring to Figure 1 , the driving mechanism 1 has a driving end. The lever assembly 2 includes a lever 21 and a rotating assembly 22. The transmission assembly 4 includes a transmission rod 41. The first end of the lever 21 is connected to the driving end, and the second end of the lever 21 is connected to one end of the transmission rod 41. And the driving end is used to drive the lever 21 to rotate around the central axis of the rotating assembly 22, so as to transmit the driving force to the transmission assembly 4 through the lever 21, and further output the driving force through the other end of the transmission rod 41.

[0039] Specifically, the driving force transmission path of the pressure loading device 100 in the present application is: the driving force is output by the driving mechanism 1 to drive the lever 21 to rotate around the rotating assembly 22, so as to further transmit the driving force through the lever 21. During the rotation of the lever 21, the driving force is transmitted to the transmission assembly 4, and then the driving force is output through the transmission assembly 4 to realize the pressure loading action.

[0040] It can be understood that the lever 21 can form a power arm 211 and a resistance arm 212 in cooperation with the rotating assembly 22. And according to the principle of moment balance, the driving moment (driving force × power arm 211) is equal to the resistance moment (resistance × resistance arm 212). By designing the ratio of the power arm 211 and the resistance arm 212 of the lever 21, the driving force output by the driving mechanism 1 can be amplified or reduced to meet the driving force output requirements of the pressure loading device 100.

[0041] That is to say, the driving force output by the driving mechanism 1 can be amplified by the lever assembly 2, that is, the resistance output on one side of the transmission assembly 4 increases proportionally (the ratio of the resistance arm 212 to the driving arm 211), so as to improve the pressure loading device 100 to simulate various working conditions (such as: the vehicle collision condition), and thus verify the safety and reliability of the test piece (such as: the steering gear 200, etc.) through the pressure loading device 100.

[0042] It should be noted that in the related art, the loading force of the pressure loading mechanism (such as: the hydraulic actuator) set in the pressure loading equipment needs to be greater than the test required force, so a large hydraulic actuator equipment needs to be used, resulting in a large layout space required for the pressure loading equipment. At the same time, the large hydraulic actuator equipment is not convenient for handling, adjustment and operation, and a test bench needs to be built during the test, consuming manpower.

[0043] In the present application, a lever assembly 2 is provided between the driving mechanism 1 and the transmission assembly 4. The lever assembly 2 can amplify the driving force output by the driving mechanism 1 and then transmit it to the transmission assembly 4, and further output the driving force through the transmission assembly 4. Therefore, it is possible to meet the requirement of the loading force output by the pressure loading device 100 to the test piece without setting a large hydraulic actuator, increase the range of the loading force output by the pressure loading device 100, and improve the effect of the pressure loading device 100 in simulating the vehicle collision condition.

[0044] In some embodiments of the present application, the driving mechanism 1 is configured as a hydraulic actuator, and the driving force output of the hydraulic actuator has good stability and fast response speed.

[0045] It can be understood that the pressure output by the hydraulic actuator in the present application is amplified proportionally by the lever assembly 2 and then transmitted to the transmission assembly 4. Therefore, when the same loading force output by the pressure loading device 100 to the test piece is satisfied, the maximum output force of the hydraulic actuator in the present application can be less than the maximum output force of the pressure loading mechanism in the existing solution, and there is no need to set a large hydraulic actuator equipment in the pressure loading device 100, thereby reducing the equipment cost of the pressure loading device 100.

[0046] As Figure 2 shown, in some embodiments of the present application, a driving arm 211 is formed between the first end of the lever 21 and the rotating assembly 22, and a resistance arm 212 is formed between the second end of the lever 21 and the rotating assembly 22, and the length of the driving arm 211 is greater than the length of the resistance arm 212, so as to proportionally amplify the driving force transmitted to the transmission assembly 4 through the lever assembly 2.

[0047] Refer to Figure 2, when the driving mechanism 1 drives the lever 21 to swing in the first direction, the length of the power arm 211 formed by the lever 21 is L1, which is also the vertical distance between the central axis of the rotating assembly 22 and the plane where the connection between the lever 21 and the driving mechanism 1 is located in the first direction; when the transmission assembly 4 outputs a driving force in the first direction, the length of the resistance arm 212 formed by the lever 21 is L2, which is also the vertical distance between the central axis of the rotating assembly 22 and the plane where the connection between the lever 21 and the transmission mechanism is located in the first direction.

[0048] It can be understood that the driving moment M1 and the resistance moment M2 at both ends of the lever 21 are equal, and the driving force output from the driving mechanism 1 to the lever 21 is F1, and the resistance on the side where the lever 21 is connected to the transmission rod 41 is F2, and the relational expression is satisfied: F1×L1 = F2×L2. Among them, since L1 > L2, so F2 > F1, that is, the driving force transmitted to the transmission rod 41 side through the lever 21 increases.

[0049] As Figure 2 shown, in some embodiments of the present application, the rotating assembly 22 includes: a bearing seat 221 and a bearing 222. The bearing 222 is installed on the bearing seat 221, the lever 21 is connected to the bearing 222, and the lever 21 can rotate around the central axis of the bearing 222.

[0050] Among them, the lever 21 is sleeved on the bearing 222. Through the bearing 222, the stability of the lever 21 during rotation can be improved, and the setting of the bearing 222 can reduce the resistance during the rotation of the lever 21 and reduce the loss of the driving force during the transmission process.

[0051] It should be noted that the bearing 222 can be configured as a rolling bearing or a sliding bearing, and the type of the bearing 222 is not limited here.

[0052] As Figure 1 shown, in some embodiments of the present application, the bearing seat 221 includes a first plate 2211 and a second plate 2212 that are opposite and spaced apart. The bearing 222 is installed on the first plate 2211 and the second plate 2212. The lever 21 is arranged between the first plate 2211 and the second plate 2212, and the first plate 2211 and the second plate 2212 limit the lever 21 in the axial direction of the bearing 222.

[0053] Specifically, the first plate 2211 and the second plate 2212 are spaced apart in the vertical direction, and a limiting groove for the lever 21 to pass through is reserved between the first plate 2211 and the second plate 2212. When the lever 21 passes through the limiting groove, the first plate 2211 and the second plate 2212 can limit the lever 21 in the thickness direction of the lever 21 (which is also the axial direction of the bearing 222) to improve the stability of the lever 21 during swinging.

[0054] Further, the bearing seat 221 further includes a third plate 2213. The third plate 2213 is disposed on one side of the first plate 2211 and the second plate 2212 and is connected to the first plate 2211 and the second plate 2212 respectively, so as to fix the first plate 2211 and the second plate 2212 through the third plate 2213. Meanwhile, the third plate 2213 can also be used to connect with the mounting seat structure to fix the bearing seat 221 in the pressure loading device 100.

[0055] It can be understood that by adjusting the position of the bearing seat 221, the position of the lever assembly 2 can be adjusted, so as to correspondingly adjust the arrangement position of the bearing seat 221 according to the position of the hydraulic actuator.

[0056] As Figure 1 shown, in some embodiments of the present application, the pressure loading device 100 further includes a first pivot assembly 31. The first pivot assembly 31 includes a first pivot portion 311 and a first pivot mating portion 312. One of the first pivot portion 311 and the first pivot mating portion 312 is disposed at the first end of the lever 21, and the other of the first pivot portion 311 and the first pivot mating portion 312 is disposed at the driving end, and the axial direction of the first pivot portion 311 is parallel to the axial direction of the bearing 222.

[0057] Thereby, the driving end is pivotally connected to the lever 21, so that the driving mechanism 1 can linearly drive the lever 21 to swing in the first direction, and during the swinging process of the lever 21, the length dimension of the power arm 211 formed by the lever 21 can remain unchanged, so as to facilitate controlling the loading force output by the pressure loading device 100.

[0058] In a specific embodiment of the present application, the first pivot portion 311 is configured as a first pivot shaft, the first pivot mating portion 312 is configured as a first spherical plain bearing, and the first pivot shaft is fixedly connected to the first end of the lever 21. The first spherical plain bearing is sleeved on the first pivot shaft and is connected to the driving end.

[0059] Referring to Figure 1 , in a specific embodiment of the present application, the first pivot portion 311 is disposed at the first end of the lever 21, and the first pivot mating portion 312 is disposed on the driving end. When the lever 21 is driven to swing by the driving mechanism 1, as the lever 21 swings, the first pivot mating portion 312 can rotate relative to the first pivot portion 311, so that the length dimension of the power arm 211 during the rotation process of the lever 21 remains unchanged.

[0060] As Figure 1As shown, in some embodiments of the present application, the driving mechanism 1 is used to drive the lever 21 to swing in the first direction, and the transmission assembly 4 further includes a guide seat 43. The guide seat 43 is used to guide the transmission rod 41 in the first direction, so that the transmission rod 41 can output a driving force in the first direction.

[0061] Thus, the driving force output direction of the driving mechanism 1 and the driving force output direction of the transmission rod 41 are parallel, which is convenient for measuring the power arm 211 and the resistance arm 212 of the lever 21, and can improve the stability and reliability of the driving force transmission.

[0062] It can be understood that the driving mechanism 1 and the transmission assembly 4 can be arranged on the same side of the lever 21, or the driving mechanism 1 and the transmission assembly 4 can be respectively arranged on both sides of the lever 21. When the driving mechanism 1 and the transmission assembly 4 are arranged on the same side of the lever 21, the layout of each mechanism of the pressure loading device 100 is compact (for example: shortening the distance between the driving mechanism 1 and the transmission assembly 4), and the driving force output by the driving mechanism 1 and the driving force output by the transmission assembly 4 are in opposite directions; when the driving mechanism 1 and the transmission assembly 4 are respectively arranged on both sides of the lever 21, the driving force output by the driving mechanism 1 and the driving force output by the transmission assembly 4 are in the same direction.

[0063] As Figure 1 shown, in some embodiments of the present application, there are multiple transmission rods 41, and the transmission assembly 4 further includes a first connection seat 421 and a second connection seat 422. The multiple transmission rods 41 are connected between the first connection seat 421 and the second connection seat 422, and the first connection seat 421 is connected to the second end of the lever 21. The second connection seat 422 is provided with an output portion 423 for outputting a driving force. Among them, the output portion 423 is used to be connected to the test piece and load the driving force onto the test piece.

[0064] As Figure 1 shown, the second end of the lever 21 transmits the driving force to the first connection seat 421, and the first connection seat 421 can further transmit the driving force to the side of the second connection seat 422 through the transmission rod 41, and output the driving force through the output portion 423 of the second connection seat 422.

[0065] Among them, when there are multiple transmission rods 41 in the transmission assembly 4, corresponding guide seats 43 can be provided to guide the multiple transmission rods 41 respectively through the guide seats 43. It is also possible to guide and cooperate the multiple transmission rods 41 with the same guide seat 43, that is, multiple guide grooves extending in the first direction are formed on the guide seat 43, and the multiple guide grooves are respectively arranged in one-to-one correspondence with the multiple transmission rods 41 to guide the multiple transmission rods 41 respectively through the multiple guide grooves.

[0066] As Figure 1As shown, in a specific embodiment of the present application, the transmission assembly 4 is provided with two transmission rods 41. The transmission rods 41 are arranged along the first direction, and the two transmission rods 41 are arranged at intervals in the vertical direction. Two guide seats 43 are provided, and the two guide seats 43 are respectively in guiding cooperation with the two transmission rods 41. Among them, the two guide seats 43 can be connected and fixed through a plate structure.

[0067] It can be understood that by adjusting the arrangement position of the plate structure, the position adjustment of the two guide seats 43 can be realized to match the transmission assembly 4 with the lever assembly 2 at different height positions.

[0068] It can be understood that when a plurality of transmission rods 41 are connected between the first connection seat 421 and the second connection seat 422, the reliability of the driving force transmission between the first connection seat 421 and the second connection seat 422 can be improved.

[0069] In some embodiments of the present application, the output part 423 can be configured as a connection structure such as a connection shaft, so that it can be connected to the test piece through the connection shaft. For example, it is fixedly connected to the pull rod 201 of the steering gear 200 through the connection shaft.

[0070] In some embodiments of the present application, the pressure loading device 100 further includes a second pivot assembly 32. The second pivot assembly 32 includes a second pivot part 321 and a second pivot mating part 322. One of the second pivot part 321 and the second pivot mating part 322 is provided at the second end of the lever 21, and the other of the second pivot part 321 and the second pivot mating part 322 is connected to the first connection seat 421. Moreover, the axial direction of the second pivot part 321 is arranged parallel to the central axis of the rotation assembly 22.

[0071] Thus, the first connection seat 421 is pivotally connected to the lever 21, so that the lever 21 can drive the transmission assembly 4 to move along the first direction when swinging. And during the swinging process of the lever 21, the length dimension of the resistance arm 212 formed by the lever 21 can remain unchanged, so as to facilitate the control of the loading force output by the pressure loading device 100.

[0072] Refer to Figure 1 , in a specific embodiment of the present application, the second pivot part 321 is arranged at the second end of the lever 21, and the second pivot mating part 322 is connected to the first connection seat 421. When the lever 21 is driven to swing by the driving mechanism 1, as the lever 21 swings, the second pivot mating part 322 can rotate relative to the second pivot part 321, so that the length dimension of the resistance arm 212 during the rotation process of the lever 21 remains unchanged.

[0073] Further, the second pivot portion 321 is configured as a second pivot shaft, and the second pivot mating portion 322 is configured as a second spherical bearing. The second spherical bearing is sleeved on the second pivot shaft, and the second spherical bearing is fixedly connected to the first connection seat 421.

[0074] It should be noted that the structures of the first pivot assembly 31 and the second pivot assembly 32 are the same. Correspondingly, the pivot shaft structure is connected to the driving mechanism 1 or the transmission assembly 4 to pivotally connect the driving end and the lever 21, and the lever 21 and the transmission assembly 4, so that the lengths of the power arm 211 and the resistance arm 212 are constant during the swinging process of the lever 21.

[0075] As Figure 1 shown, in some embodiments of the present application, the pressure loading device 100 further includes a pressure sensor 5. The pressure sensor 5 is connected between the second end of the lever 21 and the first connection seat 421 and is used to detect the driving force.

[0076] Wherein, the driving force detected by the pressure sensor 5 is the loading force output by the pressure loading device 100 to the test piece, so as to control the driving force output by the driving mechanism 1 according to the loading force value.

[0077] As Figure 1 shown, the pressure sensor 5 can be connected between the first shaft section 51 and the second shaft section 52. One end of the first shaft section 51 is connected to the second pivot mating portion 322, the other end of the first shaft section 51 is connected to the pressure sensor 5, one end of the second shaft section 52 is connected to the pressure sensor 5, and the other end of the second shaft section 52 is connected to the first connection seat 421.

[0078] Wherein, the first shaft section 51 can be integrally provided with the second pivot mating portion 322 and connected to the pressure sensor 5 by means of plug-in fit. The second shaft section 52 can be configured as a threaded rod and can be connected to the pressure sensor 5 and the first connection seat 421 by means of thread fit. The connection method is simple and highly reliable, and is convenient for assembly.

[0079] It should be noted that the connection method of the pressure sensor 5 is not limited to this, and it can also be fixed by connection structures such as a pressing block, and no specific limitation is made here.

[0080] As Figure 1 shown, in some embodiments of the present application, the pressure loading device 100 further includes a first mounting seat 61. The first mounting seat 61 is used to mount the driving mechanism 1, and the height position of the driving mechanism 1 on the first mounting seat 61 is adjustable.

[0081] Among them, a first mounting plate 71 that can slide in the vertical direction is provided on the first mounting seat 61. The driving mechanism 1 is fixedly connected to the first mounting plate 71. By adjusting the height position of the first mounting plate 71, the height position of the driving mechanism 1 can be adjusted.

[0082] Furthermore, the first mounting plate 71 can be slidably mounted on the first mounting seat 61 in a manner of sliding groove and slider cooperation. The position adjustment method of the first mounting plate 71 relative to the first mounting seat 61 is simple, and it is convenient to fix the driving mechanism 1 at a height position suitable for testing.

[0083] As Figure 1 shown, in some embodiments of the present application, the pressure loading device 100 further includes a second mounting seat 62. The second mounting seat 62 is used to mount the lever assembly 2. The rotating assembly 22 is connected to the second mounting seat 62, and the height position of the lever assembly 2 on the second mounting seat 62 is adjustable.

[0084] Among them, the bearing seat 221 is slidably mounted on the second mounting seat 62 in the vertical direction. The third plate 2213 of the bearing seat 221 is configured as the second connecting plate. By adjusting the height position of the second mounting plate, the height position of the lever assembly 2 can be adjusted, so as to facilitate arranging the lever 21 at a height position suitable for connecting with the driving mechanism 1.

[0085] As Figure 1 shown, in some embodiments of the present application, the pressure loading device 100 further includes a third mounting seat 63. The third mounting seat 63 is used to mount the transmission assembly 4, and the height position of the transmission assembly 4 on the third mounting seat 63 is adjustable.

[0086] Among them, a third mounting plate 73 that can slide in the vertical direction is provided on the third mounting seat 63. The guide seat 43 is fixedly connected to the third mounting plate 73. By adjusting the height position of the third mounting plate 73, the height position of the transmission assembly 4 can be adjusted.

[0087] As Figure 1 shown, in some embodiments of the present application, the pressure loading device 100 further includes a fourth mounting seat 64. The fourth mounting seat 64 is provided with a fixing part. The fixing part is used to fix with the test piece, and the height position of the fixing part on the fourth mounting seat 64 is adjustable.

[0088] Among them, a fourth mounting plate 74 that can slide in the vertical direction is provided on the fourth mounting seat 64. The fixing part is arranged on the fourth mounting plate 74. By adjusting the height position of the fourth mounting plate 74, the height position of the fixing part can be adjusted.

[0089] It should be noted that the structures of the first mounting seat 61, the second mounting seat 62, the third mounting seat 63 and the fourth mounting seat 64 can be the same, and the arrangement positions of the first mounting seat 61, the second mounting seat 62, the third mounting seat 63 and the fourth mounting seat 64 can be set according to the equipment parameters in the pressure loading device 100, such as: the size of the lever 21, the sizes of the power arm 211 and the resistance arm 212 formed by the lever 21, the length dimension of the transmission component 4 in the first direction, etc.

[0090] Furthermore, there can be multiple fourth mounting seats 64 to fixedly install and fix the test piece through the multiple fourth mounting seats 64, thereby improving the installation reliability of the test piece. That is to say, the number of the fourth mounting seats 64 can be set according to the installation requirements of the test piece. For example: Refer to Figure 1 , when the test piece is the steering gear 200 and there are two fourth mounting seats 64, the steering gear 200 is fixed through the two fourth mounting seats 64 to simulate the attitude of the steering gear 200 applied in a vehicle and improve the reliability of the simulation test.

[0091] As Figure 1 shown, in the present application, the pressure loading device 100 is provided with the first mounting seat 61, the second mounting seat 62, the third mounting seat 63 and the fourth mounting seat 64 to fixedly install and fix the mechanisms (such as: the driving mechanism 1, the lever assembly 2, the transmission component 4) or the test piece in the pressure loading device 100, and fix the equipment at a height position suitable for testing.

[0092] Specifically, the driving mechanism 1 is installed on the first mounting seat 61. By driving the first mounting plate 71 to slide on the first mounting seat 61, the height position of the driving mechanism 1 on the first mounting seat 61 can be adjusted to facilitate adjusting the driving mechanism 1 to a height suitable for matching with the lever assembly 2; the lever assembly 2 is installed on the second mounting seat 62. By driving the bearing seat 221 to slide on the second mounting seat 62, the height position of the lever assembly 2 on the second mounting seat 62 can be adjusted to facilitate matching the two ends of the lever assembly 2 with the height positions of the driving mechanism 1 and the transmission component 4 respectively; the transmission component 4 is installed on the third mounting seat 63 through the third mounting plate 73. By driving the third mounting plate 73 to slide on the third mounting seat 63, the height position of the transmission component 4 on the third mounting seat 63 can be adjusted to facilitate matching the two ends of the transmission component 4 with the lever assembly 2 and the test piece respectively; the test piece is installed on the fourth mounting seat 64 through the fourth mounting plate 74. By driving the fourth mounting plate 74 to slide on the fourth mounting seat 64, the height position of the test piece can be adjusted to adjust the test piece to a height position suitable for matching with the transmission component 4.

[0093] Refer to Figure 1 to describe the driving force transmission path of the pressure loading device 100 according to the embodiments of the present application:

[0094] The driving mechanism 1 outputs a driving force, and the driving force is transmitted to the first end of the lever 21 via the first pivoting assembly 31, causing the lever 21 to swing. After amplifying the driving force, the lever 21 further transmits the driving force to the transmission assembly 4 via the second end through the second pivoting assembly 32, and the transmission assembly 4 loads the driving force on the test piece.

[0095] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pressure loading device, characterized in that, Comprising: A driving mechanism (1), the driving mechanism (1) having a driving end; A lever assembly (2), the lever assembly (2) including a lever (21) and a rotating assembly (22), a first end of the lever (21) being connected to the driving end, and the driving end being configured to drive the lever (21) to rotate about a central axis of the rotating assembly (22); A transmission assembly (4), the transmission assembly (4) including a transmission rod (41), one end of the transmission rod (41) being connected to a second end of the lever (21), and the other end of the transmission rod (41) being configured to output a driving force.

2. The pressure loading device according to claim 1, wherein The rotating assembly (22) includes: A bearing seat (221); A bearing (222), the bearing (222) being mounted on the bearing seat (221), the lever (21) being connected to the bearing (222), and the lever (21) being rotatable about a central axis of the bearing (222).

3. The pressure loading device according to claim 2, characterized in that The bearing seat (221) includes a first plate (2211) and a second plate (2212) that are opposite and spaced apart, the bearing (222) being mounted on the first plate (2211) and the second plate (2212), the lever (21) being disposed between the first plate (2211) and the second plate (2212), and the first plate (2211) and the second plate (2212) limiting the lever (21) in an axial direction of the bearing (222).

4. The pressure loading device according to claim 2, characterized in that, Further included is a first pivoting assembly (31), the first pivoting assembly (31) including a first pivoting portion (311) and a first pivoting mating portion (312), one of the first pivoting portion (311) and the first pivoting mating portion (312) being disposed at the first end of the lever (21), the other of the first pivoting portion (311) and the first pivoting mating portion (312) being disposed at the driving end, and an axial direction of the first pivoting portion (311) being parallel to an axial direction of the bearing (222).

5. The pressure loading device according to claim 1, characterized in that The driving mechanism (1) is configured to drive the lever (21) to swing in a first direction, and the transmission assembly (4) further includes a guide seat (43), the guide seat (43) being configured to guide the transmission rod (41) in the first direction.

6. The pressure loading device according to claim 1, wherein There are a plurality of the transmission rods (41), and the transmission assembly (4) further includes a first connection seat (421) and a second connection seat (422), the plurality of transmission rods (41) being connected between the first connection seat (421) and the second connection seat (422), the first connection seat (421) being connected to the second end of the lever (21), and the second connection seat (422) being provided with an output portion (423), the output portion (423) being configured to output a driving force.

7. The pressure loading device according to claim 6, characterized in that, Further included is a second pivot assembly (32), the second pivot assembly (32) including a second pivot portion (321) and a second pivot mating portion (322). One of the second pivot portion (321) and the second pivot mating portion (322) is provided at the second end of the lever (21), the other of the second pivot portion (321) and the second pivot mating portion (322) is connected to the first connection seat (421), and the axial direction of the second pivot portion (321) is arranged parallel to the central axis of the rotation assembly (22).

8. The pressure loading device according to claim 6, characterized in that, Further included is a pressure sensor (5), the pressure sensor (5) being connected between the second end of the lever (21) and the first connection seat (421) and being used for detecting a driving force.

9. The pressure loading device according to claim 1, characterized in that, Further included are: a first mounting seat (61) for mounting the driving mechanism (1), and the height position of the driving mechanism (1) on the first mounting seat (61) being adjustable; and / or, a second mounting seat (62) for mounting the lever assembly (2), the rotation assembly (22) being connected to the second mounting seat (62), and the height position of the lever assembly (2) on the second mounting seat (62) being adjustable; and / or, a third mounting seat (63) for mounting the transmission assembly (4), and the height position of the transmission assembly (4) on the third mounting seat (63) being adjustable; and / or, a fourth mounting seat (64) provided with a fixing portion for fixing to a test piece, and the height position of the fixing portion on the fourth mounting seat (64) being adjustable.

10. The pressure loading device according to claim 1, wherein, A power arm (211) is formed between the first end of the lever (21) and the rotation assembly (22), a resistance arm (212) is formed between the second end of the lever (21) and the rotation assembly (22), and the length of the power arm (211) is greater than the length of the resistance arm (212).

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