A device for evaluating the detection result of a compression-shear testing machine and the compression-shear testing machine

Abstract

The utility model provides a kind of device and compression shear testing machine for evaluating compression shear testing machine detection result, belong to shear test technical field, evaluation device includes upper plate, lower plate, support column and sensing link set, wherein, the board face of upper plate and the board face of lower plate are oppositely arranged, support column is arranged between upper plate and lower plate, sensing link set includes intermediate link and sensor, intermediate link one end is connected to upper plate, other end is connected to lower plate, sensor is arranged in intermediate link, sensor is between the two ends of intermediate link, to detect the axial pressure of intermediate link.The device for evaluating compression shear testing machine detection result of the present application, the force detected by the sensor, eliminates the friction force generated when the machine base moves, is closer to the theoretical true value of the lateral load of the vibration isolation support, and the lateral load detected by the evaluation device of the utility model and the load detected by the compression shear testing machine can be used to evaluate the detection accuracy of the compression shear testing machine.

Description

Technical Field

[0001] This utility model belongs to the field of shear testing technology, specifically relating to a device and a compression-shear testing machine for evaluating the test results of a compression-shear testing machine. Background Technology

[0002] Vibration isolation bearings are core components in building seismic isolation technology. They are installed between the superstructure and foundation of a building to extend the natural period of the structure and dissipate seismic energy. Shear performance is a key indicator for evaluating the mechanical behavior of vibration isolation bearings, mainly referring to the bearing's deformation capacity, stiffness characteristics, and energy dissipation capacity under horizontal shear force.

[0003] The shear performance of vibration isolation bearings is used to reduce the transmission of seismic energy to building structures, thereby protecting the safety and functionality of buildings, bridges, and railways during earthquakes. Therefore, to meet design requirements, satisfy standard requirements, and fulfill their intended function, vibration isolation bearings must undergo shear performance testing and verification before leaving the factory and after arriving at the construction site.

[0004] A compression-shear testing machine is an instrument used to test the shear performance of vibration isolation bearings. Existing compression-shear testing machines typically place the vibration isolation bearing on a machine base, apply pressure from above while simultaneously moving the machine base laterally. The shear performance of the vibration isolation bearing is obtained by measuring the force required to move the base laterally.

[0005] However, when the traction machine base moves, the resistance to be overcome comes not only from the vibration isolation supports but also from frictional resistance between the machine base and the equipment. This causes distortion in the detected shear performance of the vibration isolation supports. Furthermore, the self-weight, friction, and specific structure of each compression-shear testing machine are different, resulting in varying degrees of distortion. Therefore, a device is urgently needed to detect and evaluate the distortion of compression-shear testing machines. Summary of the Invention

[0006] Therefore, the technical problem to be solved by this utility model is to provide a device and a compression-shear testing machine for evaluating the test results of the compression-shear testing machine, with the aim of solving the problem of distorted test results of the compression-shear testing machine.

[0007] This utility model provides a device for evaluating the test results of a compression-shear testing machine, comprising: upper plate; The lower plate is located below the upper plate, and the surface of the lower plate is opposite to the surface of the upper plate; A support column is disposed between the upper plate and the lower plate; A sensing linkage assembly includes a middle link and a sensor. One end of the middle link is connected to the upper plate, and the other end is connected to the lower plate. The sensor is disposed on the middle link and is located between the two ends of the middle link to detect the axial pressure of the middle link.

[0008] In some embodiments, the intermediate connecting rod is rotatably connected to the upper plate, and the intermediate connecting rod is also rotatably connected to the lower plate.

[0009] In some embodiments, the intermediate link includes a first half-link and a second half-link, which are connected by the sensor.

[0010] In some embodiments, the lower end of the support column abuts against the lower plate, the upper end of the support column abuts against the upper plate, and the intermediate connecting rod is in a horizontal state.

[0011] In some embodiments, the number of the sensing link groups is two, the two sensing link groups are distributed on both sides of the support column, and the middle link of the two sensing link groups is arranged in parallel.

[0012] In some embodiments, the device for evaluating the test results of the compression-shear testing machine further includes a balance link assembly, the balance link assembly including a vertical connector, one end of the vertical connector being connected to the upper plate and the other end being connected to the lower plate, the upper plate and the lower plate connected by the vertical connector having a degree of freedom of relative motion in the vertical direction, and having a degree of freedom of relative motion in the length direction of the intermediate link; There are multiple vertical connectors distributed around the support column.

[0013] In some embodiments, the vertical connector includes: The upper connecting rod is rotatably connected to the upper plate; The lower connecting rod is rotatably connected to the lower plate, and the upper connecting rod is rotatably connected to the lower connecting rod; The upper plate, upper connecting rod, lower connecting rod, and lower plate form a four-bar linkage. The four-bar linkage has a degree of freedom in the vertical direction and a degree of freedom in the length direction of the middle connecting rod.

[0014] In some embodiments, the balance link assembly includes at least two pairs of vertical connecting members arranged in pairs, the two pairs of vertical connecting members being respectively disposed on both sides of the support column, and the two pairs of vertical connecting members being arranged along the length direction of the intermediate link; The balance linkage assembly also includes a coordinating link, the two ends of which are rotatably connected to a pair of vertical connecting members.

[0015] In some embodiments, the upper link, the lower link, and the coordinating link are coaxially hinged.

[0016] This utility model also proposes a compression-shear testing machine, including the device for evaluating the test results of the compression-shear testing machine as described in any embodiment of this disclosure.

[0017] Beneficial effects: The device for evaluating the test results of a compression-shear testing machine provided by this utility model is placed between the vibration isolation support and the loading device of the compression-shear testing machine. When the traction machine base applies a lateral load to the vibration isolation support, the lateral force on the vibration isolation support is also transmitted upward to the lower plate of the evaluation device and thus detected by the sensor. Since there is no relative movement between the loading device, the upper plate, the support column, the lower plate and the vibration isolation support, the force detected by the sensor eliminates the frictional force generated when the machine base moves, and is closer to the theoretical true value of the lateral load of the vibration isolation support. The detection accuracy of the compression-shear testing machine can be evaluated by comparing the lateral load detected by the evaluation device of this utility model with the load detected by the compression-shear testing machine. The evaluation result can be used for the correction of the compression-shear testing machine. Attached Figure Description

[0018] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the device for evaluating the test results of a compression-shear testing machine according to an embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of a device for evaluating the test results of a compression-shear testing machine according to an embodiment of the present invention. Figure 3 This is a side view of a portion of the structure of the device for evaluating the test results of a compression-shear testing machine according to an embodiment of the present invention; Figure 4 This is a side view of another part of the structure of the device for evaluating the test results of the compression-shear testing machine according to an embodiment of the present invention; Figure 5 This is a three-dimensional structural diagram of the compression-shear testing machine according to an embodiment of the present invention.

[0020] Figure label: 111. Upper plate main body; 112. First upper connecting seat; 113. Second upper connecting seat; 12. Lower plate; 13. Support column; 141. Intermediate connecting rod; 142. Sensor; 143. First half connecting rod; 144. Second half connecting rod; 145. Threaded pipe; 151. Upper connecting rod; 152. Lower connecting rod; 16. Coordinating connecting rod; 21. Vertical loading device; 22. Machine base; 3. Vibration isolation support. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. The principles and features of the present invention are described 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 combined with each other. The embodiments given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0022] A compression-shear testing machine is an instrument used to test the shear performance of vibration isolation bearings. A compression-shear testing machine generally consists of a vertical loading device, a movable machine base, a horizontal loading device, and a guide rail system. The vibration isolation bearing is placed on the machine base. The vertical loading device applies a vertical load to the vibration isolation bearing, while the horizontal loading device pulls the machine base to apply a lateral load to the vibration isolation bearing.

[0023] This disclosure discloses an apparatus (which may be referred to as an evaluation apparatus) for evaluating the test results of a compression-shear testing machine, used to assess the testing effectiveness of the machine. As one application, the evaluation results can be used to correct the test results of the compression-shear testing machine to improve testing accuracy.

[0024] Figure 1 This is a three-dimensional structural diagram of the device for evaluating the test results of a compression-shear testing machine according to an embodiment of the present invention. Figure 2 This is a three-dimensional structural diagram of a device for evaluating the test results of a compression-shear testing machine according to an embodiment of the present invention. Figure 3 This is a side view of a portion of the structure of the device for evaluating the test results of a compression-shear testing machine according to an embodiment of the present invention. Figure 2 The upper plate is not shown in the image. Figure 3 The image shows the connection relationship between the sensing linkage assembly, the upper plate, and the lower plate from a side view. In some embodiments of this disclosure, such as... Figure 1 , Figure 2 and Figure 3 As shown, the device for evaluating the test results of the compression-shear testing machine includes an upper plate, a lower plate 12, a support column 13, and a sensing linkage assembly. The lower plate 12 is located below the upper plate, with its surface facing the upper plate. The support column 13 is positioned between the upper and lower plates 12. The sensing linkage assembly includes a central connecting rod 141 and a sensor 142. One end of the central connecting rod 141 is connected to the upper plate, and the other end is connected to the lower plate 12. The sensor 142 is positioned between the two ends of the central connecting rod 141 to detect the axial pressure on the central connecting rod 141.

[0025] In the embodiments of this disclosure, the device for evaluating the test results of the compression-shear testing machine is placed between the vertical loading device and the vibration isolation support 3 of the compression-shear testing machine. The upper plate and the lower plate 12 abut against the vertical loading device 21 and the vibration isolation support 3, respectively. The lateral load on the vibration isolation support 3, which is supported on the machine base 22, is transferred to the lower plate 12. The upper plate remains stationary in the horizontal direction with the vertical loading device 21. The intermediate connecting rod 141 connecting the upper plate and the lower plate 12 plays the role of transmitting the lateral load. The axial pressure that the sensor 142 set on the intermediate connecting rod 141 can detect is the horizontal load on the vibration isolation support 3. The shear performance of the vibration isolation support 3 is then obtained based on this horizontal load.

[0026] Traditional compression-shear testing machines use the traction force of the machine base 22 as the horizontal load to obtain shear performance. However, this horizontal load includes the frictional force generated during the movement of the machine base 22, distorting the obtained shear performance. The device disclosed herein for evaluating the test results of a compression-shear testing machine, after being installed on the machine, uses a sensor 142 located on the intermediate connecting rod 141 to detect an axial pressure that is closer to the true value of the horizontal load of the vibration isolation support 3. Therefore, the horizontal load obtained by this evaluation device can be compared with the horizontal load obtained by the compression-shear testing machine to evaluate the testing accuracy (or deviation) of the compression-shear testing machine. Furthermore, this evaluation result can be used to correct the test data of the compression-shear testing machine, thus correcting the test results.

[0027] The device used to evaluate the test results of the compression-shear testing machine can be used upside down. That is, the upper plate can abut against the vertical loading device and the lower plate 12 can abut against the vibration isolation support 3; or the direction can be reversed so that the upper plate abuts against the vibration isolation support 3 and the lower plate 12 abuts against the vertical loading device.

[0028] In this embodiment, "up" and "down" refer to the vertical direction. This embodiment uses "up" and "down" to describe the relative positions of the various components of the compression-shear testing machine and its evaluation device. However, in actual use, depending on the specific circumstances, the evaluation device can be installed and used in the vertical, horizontal, or any other arbitrary direction.

[0029] Obtaining the shear performance of a vibration isolation bearing based on its horizontal load is a relatively mature method, and will not be elaborated upon here. Other data that need to be measured are also well known, and will not be elaborated upon here either.

[0030] In some embodiments of this disclosure, the intermediate connecting rod 141 is rotatably connected to the upper plate, and the intermediate connecting rod 141 is also rotatably connected to the lower plate 12.

[0031] In the embodiments of this disclosure, the connection between the intermediate connecting rod 141 and the upper and lower plates 12 is configured as a rotatable connection, so that the upper and lower plates 12 still have the freedom of relative movement in the vertical direction after being connected by the intermediate connecting rod 141. This prevents the intermediate connecting rod 141 from bearing vertical shear force when the vertical loading device 21 applies a vertical load. On the one hand, this avoids damage to the intermediate connecting rod 141 and the sensor 142; on the other hand, it avoids introducing new error factors into the axial force detected by the sensor 142. Furthermore, during the application of load by the vertical loading device 21, the distance between the upper and lower plates 12 may change under the load. The rotatable connection between the intermediate connecting rod 141 and the upper and lower plates 12 also allows the distance between the upper and lower plates 12 to be adjustable.

[0032] The connection between the intermediate connecting rod 141 and the upper plate can be implemented in several ways. In one implementation, a groove can be formed in the upper plate, a rotating shaft can be installed within the groove, and a shaft hole can be provided in the intermediate connecting rod. The shaft hole and the rotating shaft cooperate to achieve a rotatable connection. In another implementation, a groove can be formed in the upper plate, a shaft hole can be provided within the groove, and a rotating shaft can be provided at the end of the intermediate connecting rod. The rotating shaft and the shaft hole cooperate to achieve a rotatable connection. As yet another implementation, such as... Figure 2 and Figure 3 As shown, the upper plate includes an upper plate body 111 and a first upper connecting seat 112. The first upper connecting seat 112 is disposed and protrudes from the lower surface of the upper plate body 111 and is fixedly connected to the upper plate body 111. The intermediate connecting rod 141 and the first upper connecting seat 112 are hinged by a pin. By setting the first upper connecting seat 112 to achieve a rotatable connection, on the one hand, there is no need to open grooves in the upper plate, thus maintaining the structural strength of the upper plate; on the other hand, by selecting the length of the first upper connecting seat 112, the normal posture of the intermediate connecting rod 141 can be adjusted so that its axial pressure is closer to the horizontal load on the vibration isolation support 3.

[0033] In some embodiments of this disclosure, the rotational connection between the lower plate 12 and the intermediate connecting rod 141 can be implemented by referring to the rotational connection between the upper plate and the intermediate connecting rod 141.

[0034] In some embodiments of this disclosure, such as Figure 3 As shown, the intermediate link 141 includes a first half link 143 and a second half link 144, which are connected by a sensor 142.

[0035] In the embodiments of this disclosure, the intermediate connecting rod 141 is configured as a first half-connecting rod 143 and a second half-connecting rod 144, and a sensor 142 is disposed between the first half-connecting rod 143 and the second half-connecting rod 144. The sensor 142 can then directly detect the axial pressure of the intermediate connecting rod 141, eliminating the interference of shear force. Accordingly, the sensor 142 is a pressure sensor.

[0036] In some ways, such as Figure 3 As shown, threaded tubes 145 can also be provided at the ends of the first half-connecting rod 143 and the second half-connecting rod 144 to connect and fix the first half-connecting rod 143 and the second half-connecting rod 144.

[0037] In other embodiments of this disclosure, the sensor can be attached to the side wall of the intermediate connecting rod to detect axial pressure by applying slight axial compression to the intermediate connecting rod. Accordingly, the sensor is a strain gauge pressure sensor. Furthermore, the intermediate connecting rod can also be a segmented structure (including a first half-connecting rod and a second half-connecting rod) connected by a threaded pipe. The sensor is attached to the threaded pipe, and by selecting the material of the threaded pipe, it can be made to have suitable deformation capacity to facilitate the detection of axial compression, and thus the detection of axial pressure.

[0038] In some embodiments of this disclosure, such as Figure 3 As shown, the lower end of the support column 13 abuts against the lower plate 12, the upper end of the support column 13 abuts against the upper plate, and the intermediate connecting rod 141 is in a horizontal state.

[0039] In the embodiments of this disclosure, the support column 13 supports the upper plate and the lower plate 12, preventing the upper plate and the lower plate 12 from directly contacting each other. When the support column 13 supports the upper plate and the lower plate 12, the intermediate connecting rod 141 is in a horizontal state. When performing force analysis at this time, the axial pressure of the intermediate connecting rod 141 is closest to the true value of the horizontal load on the vibration isolation support 3, making the detection more accurate.

[0040] In some embodiments of this disclosure, during the process of the vertical loading device 21 applying a load to the upper plate, the support column 13 may exhibit a certain degree of elasticity, thereby causing deformation. During this process, the angle of the intermediate connecting rod 141 may also change accordingly and does not always remain in a horizontal state. The optimal initial posture of the intermediate connecting rod 141 can be determined by theoretical calculation or experimental statistics based on factors such as the magnitude of the vertical load and the deformation amplitude of the support column 13.

[0041] As one implementation method, the support column 13 can be made of a material with very low horizontal stiffness and very high vertical stiffness, so as to avoid the support column 13 itself absorbing the horizontal load of the vibration isolation support 3.

[0042] In some embodiments of this disclosure, such as Figure 1and Figure 2 As shown, there are two sensor linkage groups, which are distributed on both sides of the support column 13, and the middle connecting rod 141 of the two sensor linkage groups is arranged in parallel.

[0043] The intermediate connecting rod 141 not only serves to detect the horizontal load of the vibration isolation support 3, but also serves to connect the upper plate and the lower plate 12. The sensor connecting rod groups are set at both ends of the support column 13 to maintain the structural symmetry and force balance between the upper plate and the lower plate 12, and to avoid structural damage caused by uneven force on the evaluation device when subjected to horizontal load.

[0044] As one implementation method, such as Figure 2 and Figure 3 As shown, the two sensing linkages should be connected to the upper plate on the same side and to the lower plate 12 on the same side, so that the distance between the upper and lower plates 12 can change stably when the support column 13 deforms, preventing rotation. Furthermore, the distance between the upper and lower plates 12 can be adjusted to allow for replacement of support columns 13 of different heights when needed. As one example, the left side of the intermediate linkage 141 is connected to the upper plate, and the right side is connected to the lower plate 12.

[0045] In some embodiments of this disclosure, the number of sensor linkages may be three or more.

[0046] Figure 4 This is a side view of another part of the structure of the device for evaluating the test results of a compression-shear testing machine according to an embodiment of the present invention. Figure 4 The diagram illustrates the connection relationships between the balance linkage assembly, the upper plate, and the lower plate. In some embodiments of this disclosure, such as... Figure 1 , Figure 2 and Figure 4 As shown, the device for evaluating the test results of the compression-shear testing machine may further include a balance linkage assembly. The balance linkage assembly includes vertical connectors, one end of which is connected to the upper plate and the other end to the lower plate 12. The upper plate and the lower plate 12 connected by the vertical connectors have relative degrees of freedom of movement in the vertical direction and relative degrees of freedom of movement in the length direction of the intermediate connecting rod 141. There are multiple vertical connectors distributed around the support column 13.

[0047] In some embodiments of this disclosure, the upper plate and lower plate 12 are connected by multiple vertical connectors, which can stabilize the upper plate and lower plate 12 of the evaluation device and prevent them from tipping over during loading. Furthermore, the vertical connectors have degrees of freedom along the length of the intermediate link 141 and do not share the horizontal load, ensuring that the horizontal load detected by the sensor 142 located on the intermediate link 141 remains accurate.

[0048] Vertical connectors can take various forms; for example, chains, springs, and ropes can be used as vertical connectors. As another implementation method, such as... Figure 2 and Figure 4 As shown, the vertical connecting member includes an upper connecting rod 151 and a lower connecting rod 152. The upper connecting rod 151 is rotatably connected to the upper plate, and the lower connecting rod 152 is rotatably connected to the lower plate 12. The upper plate, upper connecting rod 151, lower connecting rod 152, and lower plate 12 form a four-bar linkage. This four-bar linkage has a degree of freedom in the vertical direction and a degree of freedom along the length of the intermediate connecting rod 141.

[0049] In this embodiment, by using a four-bar linkage structure, the connection between the upper plate and the lower plate 12 can be reinforced, and the middle link 141 does not bear any load in the length direction, thus avoiding the diversion of horizontal load with the middle link 141.

[0050] The rotational connection between the upper connecting rod 151 and the lower connecting rod 152 can be achieved by hinge, the rotational connection between the upper plate and the upper connecting rod 151 can also be achieved by hinge, and the rotational connection between the lower plate 12 and the lower connecting rod 152 can also be achieved by hinge.

[0051] As one implementation method, such as Figure 2 and Figure 4 As shown, the upper plate may include an upper plate body 111 and a second upper connecting seat 113. The second upper connecting seat 113 is fixedly installed and protrudes from the lower surface of the upper plate. The upper connecting rod 151 is hinged to the second upper connecting seat 113 to achieve a rotatable connection.

[0052] The rotational connection between the lower connecting rod 152 and the lower plate 12 can be achieved by referring to the rotational connection between the upper connecting rod 151 and the upper plate.

[0053] In some embodiments of this disclosure, such as Figure 2 and Figure 4 As shown, the balance linkage assembly includes two pairs of vertical connecting members, which are respectively located on both sides of the support column 13. The two pairs of vertical connecting members are arranged along the length of the intermediate link 141. The balance linkage assembly also includes a coordinating link 16, whose two ends are rotatably connected to the two pairs of vertical connecting members.

[0054] In the embodiments of this disclosure, a coordinating link 16 is used to connect two vertical connectors. When one vertical connector moves (or tends to move), the force it generates is transmitted to the other vertical connector through the coordinating link 16, thereby synchronizing the two vertical connectors and synchronizing the movement of the two vertical connectors with the two connection points of the upper plate, thus improving the stability of the posture of the upper and lower plates 12.

[0055] As another implementation, a coordinating link can also be connected to three or more vertical connectors.

[0056] As another implementation, the balance linkage may also include three or more pairs of vertical connectors.

[0057] In some embodiments of this disclosure, such as Figure 4 As shown, the upper connecting rod 151, the lower connecting rod 152, and the coordinating connecting rod 16 are coaxially hinged, eliminating the need for additional hinge shafts and shaft holes, thus simplifying the structure to some extent.

[0058] The apparatus for evaluating the test results of the compression-shear testing machine based on the embodiments of this disclosure was tested in four separate tests, and the results are recorded below.

[0059] First experiment: Test conditions: (1) Plate support 300mm, horizontal displacement 53mm (rubber layer thickness 53mm), vertical pressure 400kN (load 700kN under 10MPa vertical compressive stress).

[0060] (2) Evaluation device: dynamic compression and shear testing machine (data acquisition frequency 1 time / 5s).

[0061] The experimental data obtained based on the above experimental conditions are shown in Table 1.

[0062] Table 1:

[0063] Second experiment: Test conditions: (1) Plate support 300mm, horizontal displacement 53mm (rubber layer thickness 53mm), vertical pressure 400kN (load 700kN under 10MPa vertical compressive stress).

[0064] (2) Evaluation device: dynamic compression and shear testing machine (data acquisition frequency 1 time / 1s).

[0065] The experimental data obtained based on the above experimental conditions are shown in Table 2.

[0066] Table 2:

[0067] Third experiment: Test conditions: (1) Use 400mm building support, horizontal displacement 73mm (rubber layer thickness 73mm), vertical pressure 400kN (confirm that no slippage occurs).

[0068] (2) Evaluation device: dynamic compression and shear testing machine (data acquisition frequency 1 time / 1s).

[0069] (3) The test was conducted for 10 laps, with a 30-minute interval between each lap.

[0070] The experimental data obtained based on the above experimental conditions are shown in Tables 3-1, 3-2 and 3-3.

[0071] Table 3-1:

[0072] Table 3-2:

[0073] Table 3-3:

[0074] Fourth experiment: Test conditions: (1) Use 400mm plate supports, horizontal displacement 73mm (rubber layer thickness 73mm), vertical pressure 400kN (confirm that no slippage occurs).

[0075] (2) Evaluation device: dynamic compression and shear testing machine (data acquisition frequency 1 time / 1s).

[0076] (3) The test was conducted for 10 laps, with a 30-minute interval between each lap.

[0077] The experimental data obtained based on the above experimental conditions are shown in Tables 4-1, 4-2 and 4-3.

[0078] Table 4-1:

[0079] Table 4-2:

[0080] Table 4-3:

[0081] The data from the four tests above show that the deviation between the test results of the compression-shear testing machine and the test results of the evaluation device is consistently around 16%. This deviation can be used as the evaluation result of the compression-shear testing machine by the evaluation device of this disclosure. The four tests also demonstrate that the evaluation device of this disclosure can provide a stable and reliable evaluation of the compression-shear testing machine.

[0082] The calculation method for the "reduction ratio" in Tables 1 to 4-3 is as follows: .

[0083] The method for testing the shear performance of vibration isolation bearings using a compression-shear testing machine is a well-established method, so it will not be elaborated upon here. Only the main equipment data will be recorded. The vibration isolation bearing has a rubber layer, and the "rubber layer thickness" in the test conditions refers to the thickness of the rubber layer in the vibration isolation bearing.

[0084] The following is a brief description of the use of the apparatus disclosed herein for evaluating the test results of a compression-shear testing machine: The evaluation device is placed between the vibration isolation support of the compression-shear testing machine and the vertical loading device. The length direction of the middle connecting rod of the evaluation device is the same as the traction (or drive) direction of the horizontal loading device. The vertical loading device and the horizontal loading device are started, and the horizontal load detected by the compression-shear testing machine and the horizontal load detected by the evaluation device are read. The compression-shear testing machine is evaluated by the deviation between the two.

[0085] The apparatus disclosed herein for evaluating the test results of a compression-shear testing machine serves as a standalone evaluation instrument, capable of evaluating different compression-shear testing machines. As one application of the evaluation results, the compression-shear testing machine can be modified based on these results, thereby improving the testing accuracy of the machine at a lower cost.

[0086] This disclosure also proposes a compression-shear testing machine, including a device for evaluating the test results of the compression-shear testing machine according to any embodiment of this disclosure. Accordingly, the advantages of the device for evaluating the test results of the compression-shear testing machine of this disclosure are also present in the compression-shear testing machine having the evaluation device, which will not be elaborated upon in this disclosure.

[0087] Figure 5 This is a three-dimensional structural diagram of the compression-shear testing machine according to an embodiment of the present invention. Figure 5 The horizontal loading device is omitted. Figure 5 The direction of the middle arrow indicates the traction direction of the horizontal loading device. Figure 5 The diagram illustrates a compression-shear testing machine where the base is moved via rollers; however, it is not limited to this, and the base can also be moved via slide rails or other structures. In some embodiments of this disclosure, such as... Figure 5 As shown, the compression-shear testing machine also includes a vertical loading device 21, a horizontal loading device, a machine base 22, and a guide rail system. The machine base 22 is located on the guide rail system and moves along the guide rail under the drive and traction of the horizontal loading device. A vibration isolation support 3 is supported on the upper surface of the machine base 22. The evaluation device is placed on the upper surface of the vibration isolation support 3. The lower plate 12 of the evaluation device abuts against the vibration isolation support 3, and the upper plate abuts against the vertical loading device 21.

[0088] In embodiments of this disclosure, the evaluation device can be part of a compression-shear testing machine, and the force detected by the sensor 142 of the evaluation device can be used as the horizontal load of the vibration isolation support 3, thereby directly improving the detection accuracy of the compression-shear testing machine.

[0089] In some embodiments of this disclosure, the installation position of the evaluation device may also be adjusted, for example, the evaluation device may be placed between the horizontal loading device and the vibration isolation support.

[0090] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this application.

[0091] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0092] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0093] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0094] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0095] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An apparatus for evaluating the test results of a compression-shear testing machine, characterized in that, include: upper plate; The lower plate is located below the upper plate, and the surface of the lower plate is opposite to the surface of the upper plate; A support column is disposed between the upper plate and the lower plate; A sensing linkage assembly includes a middle link and a sensor. One end of the middle link is connected to the upper plate, and the other end is connected to the lower plate. The sensor is disposed on the middle link and is located between the two ends of the middle link to detect the axial pressure of the middle link.

2. The apparatus for evaluating the test results of a compression-shear testing machine according to claim 1, characterized in that, The intermediate connecting rod is rotatably connected to the upper plate, and the intermediate connecting rod is also rotatably connected to the lower plate.

3. The apparatus for evaluating the test results of a compression-shear testing machine according to claim 2, characterized in that, The intermediate link includes a first half link and a second half link, which are connected by the sensor.

4. The apparatus for evaluating the test results of a compression-shear testing machine according to claim 3, characterized in that, The lower end of the support column abuts against the lower plate, the upper end of the support column abuts against the upper plate, and the intermediate connecting rod is in a horizontal state.

5. The apparatus for evaluating the test results of a compression-shear testing machine according to claim 4, characterized in that, The number of the sensing link groups is two, and the two sensing link groups are distributed on both sides of the support column, with the middle link of the two sensing link groups arranged in parallel.

6. The apparatus for evaluating the test results of a compression-shear testing machine according to any one of claims 1-5, characterized in that, The device for evaluating the test results of the compression-shear testing machine further includes a balance link assembly, which includes a vertical connector. One end of the vertical connector is connected to the upper plate, and the other end is connected to the lower plate. The upper plate and the lower plate connected by the vertical connector have a degree of freedom of relative motion in the vertical direction, and also have a degree of freedom of relative motion in the length direction of the intermediate link. There are multiple vertical connectors distributed around the support column.

7. The apparatus for evaluating the test results of a compression-shear testing machine according to claim 6, characterized in that, The vertical connector includes: The upper connecting rod is rotatably connected to the upper plate; The lower connecting rod is rotatably connected to the lower plate, and the upper connecting rod is rotatably connected to the lower connecting rod; The upper plate, upper connecting rod, lower connecting rod, and lower plate form a four-bar linkage. The four-bar linkage has a degree of freedom in the vertical direction and a degree of freedom in the length direction of the middle connecting rod.

8. The apparatus for evaluating the test results of a compression-shear testing machine according to claim 7, characterized in that, The balance link assembly includes at least two pairs of vertical connecting members arranged in pairs. The two pairs of vertical connecting members are respectively arranged on both sides of the support column, and the two vertical connecting members in pairs are arranged along the length direction of the middle link. The balance linkage assembly also includes a coordinating link, the two ends of which are rotatably connected to two pairs of vertical connecting members.

9. The apparatus for evaluating the test results of a compression-shear testing machine according to claim 8, characterized in that, The upper link, the lower link, and the coordinating link are coaxially hinged.

10. A compression-shear testing machine, characterized in that, Includes the apparatus for evaluating the test results of a compression-shear testing machine as described in any one of claims 1-9.

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