A chain strength testing mechanism

Abstract

The present invention provides a chain strength testing mechanism, belonging to the technical field of chain strength testing. It comprises a machine body, a rack frame is installed on the top of the machine body, the front end of the rack frame is meshed and connected with an industrial camera, one end of the rack frame is installed with a slide bracket, the interior of the slide bracket is slidably connected with a slider, and the front end of the slider is installed with a cavity. The present invention provides a chain testing device without a clamping structure by setting a support adjustment component and a latch expansion component, which can be adapted to chains of a large number of sizes, simulate working conditions under different tension and relaxation forces and cyclic loads, comprehensively record the strength and durability of the chain under different environments, ensure that the chain can withstand the expected load during the working process, improve the accurate control of the quality and service life of the chain, and avoid the chain from skipping, breaking, deformation, etc. in the continuous stretching and wear acceleration transmission system, which affects the operation safety and transmission efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of chain strength testing, and in particular to a chain strength testing mechanism. Background Art

[0002] As an important transmission component, chain is widely used in mechanical equipment such as lifting, hoisting, traction and transmission. If the strength of the chain cannot meet the design requirements, or fatigue damage occurs during use and is not discovered and replaced in time, accidents such as breakage or chain derailment may occur. These accidents will not only cause damage to the mechanical equipment, but may also pose a great threat to personal safety and property.

[0003] Chain strength testing usually uses professional testing instruments and equipment, combined with relevant national technical standards and acceptance specifications for testing.

[0004] Most of the existing chain strength testing devices apply unidirectional tension to the device when conducting chain strength tests, and the testing method is relatively limited. At the same time, when conducting chain tests, the structure and working principle of the clamp for clamping the chain cannot adapt to the structural strength of most different types of chains, affecting the efficiency and applicability of chain strength tests.

[0005] In addition, the strength testing methods of existing chain testing devices are relatively limited. Although a single basic tensile test can provide basic mechanical performance parameters such as the tensile strength of the chain, it is difficult to involve the dynamic load and fatigue performance of the chain in the actual application environment. It has limitations and is difficult to test according to actual working conditions. It is difficult to apply it to actual use environments, resulting in the strength coefficient of the chain being inaccurate and actual, which easily leads to the risk of chain breakage or decoupling in actual use.

[0006] At the same time, it is difficult for existing devices to quickly and directly observe the changes in chain deformation during strength testing, resulting in data statistics only when the chain undergoes significant deformation and breakage. Therefore, the present application provides a chain strength testing mechanism to meet the needs. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a chain strength testing mechanism to solve the problem of existing chain strength testing devices. When conducting chain strength tests, most of the time, unidirectional tension is applied to the device, and the testing method is relatively limited. At the same time, when conducting chain tests, the structure and working principle of the clamp for clamping the chain cannot adapt to the structural strength of most different types of chains, affecting the efficiency of the chain strength test and the problem of low applicability.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0009] A chain strength testing mechanism comprises a machine body, a rack frame is installed on the top of the machine body, an industrial camera is meshedly connected to the front end of the rack frame, a slide bracket is installed at one end of the rack frame, a slider is slidably connected inside the slide bracket, a cavity is installed at the front end of the slider, a servo motor is installed inside the cavity, a support column is installed at the bottom of the cavity, a telescopic cover is installed on the bottom surface of the support column, a control center is installed at the front end of the machine body, a box is installed on the top inner wall of the machine body, a piezoresistive pressure sensor is installed at the bottom of the box, an electric push rod is installed at one end of the piezoresistive pressure sensor, and a chain is installed at the output end of the servo motor; it also includes a stretching adjustment component, a stretching adjustment component is installed inside the box, and the stretching adjustment component is used to provide power output for stretching the chain; a support adjustment component, a support adjustment component is installed at the output end of the servo motor, and the support adjustment component is used to stretch the gap between the chains; a tooth expansion component, a tooth expansion component is installed inside the support adjustment component, and the tooth expansion component is used to detect the expansion force of the gap at the chain connection.

[0010] Optionally, the telescopic cover is sleeved on the surface of the support column, the telescopic cover is slidably installed on the inner wall of the groove at the top of the body, and the chain is sleeved on the surface of the support adjustment component.

[0011] Optionally, the stretch adjustment assembly includes a force-bearing seat, which is installed at the bottom of the box body and on the output path of the electric push rod.

[0012] Optionally, a support rod is installed at one end of the force-bearing seat, a first rack is installed at one end of the support rod, an elastic frame is installed at the end of the support rod away from the first rack, the surface of the first rack is meshed and connected with a gear, there are two groups of the first racks, and the two groups of the first racks are respectively meshed and connected with the top and bottom of the gear.

[0013] Optionally, the support adjustment component includes an electro-hydraulic push rod, which is installed at one end of the cavity, and a push plate is installed at the output end of the electro-hydraulic push rod. The push plate is slidably connected to the output end of the servo motor, and one end of the push plate is slidably connected to a turntable.

[0014] Optionally, a rotating shaft seat is installed at one end of the rotating disk, the rotating disk is connected to the output end of the servo motor, and a connecting rod is rotatably connected inside the rotating shaft seat.

[0015] Optionally, a baffle is installed at one end of the connecting rod, a telescopic support frame is installed at the bottom of the baffle, the bottom of the telescopic support frame is installed on the surface of the output end of the servo motor, and an arc-shaped receiving plate is installed at one end of the telescopic support frame.

[0016] Optionally, the latch expansion assembly includes a telescopic pressure sensor, which is installed at one end of the turntable. A push rod is installed at one end of the telescopic pressure sensor, and a cylindrical rack is installed at the output end of the push rod.

[0017] Optionally, a driving wheel is meshedly connected to the surface of the cylindrical rack, a driven wheel is mounted on one end of the driving wheel, and a second rack is meshedly connected to the surface of the driven wheel.

[0018] Optionally, a force-bearing telescopic frame is installed at one end of the second rack, a scissors bracket is installed at one end of the force-bearing telescopic frame, and a latch is installed at one end of the scissors bracket. The latch is provided in multiple groups, and the multiple groups of latches are respectively arranged at the intersection of the scissors bracket.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] In the above scheme, by setting a stretching adjustment component and utilizing the cooperation between the force-bearing seat, the support rod, the first rack, the gear and the elastic frame, when the chain is installed, the motor is started through the control center to rotate, and then the electric push rod is started in stages to extend the distance, and then the force-bearing seat is subjected to the thrust and moves toward one end. When the force-bearing seat moves, the support rod moves synchronously, and the movement of the support rod drives the first rack to move. At the same time, the gear starts to rotate due to the movement of the first rack. The rotation of the gear drives the first rack meshing at the top to move equidistantly in the opposite direction, so that the chain itself rotates while being subjected to bidirectional equidistant tension. The chain testing device without the need for a clamping structure can be adapted to chain structures of a variety of sizes, ensuring that each section of the chain can be subjected to uniform force while slowly extending to obtain the elongation performance of the chain and detect the brittle fracture performance of the chain, making it more widely applicable and providing more accurate data.

[0021] By setting up the support adjustment components and utilizing the electro-hydraulic push rod, push plate, turntable, shaft seat, connecting rod, telescopic support frame, baffle and arc-shaped receiving plate, after the chain is placed on the arc-shaped receiving plate, the arc-shaped receiving plate is gradually stretched and its inner diameter is changed through the precise pushing of the electro-hydraulic push rod, so that the strength testing device is close to the use of the chain in the actual environment. By simulating the working conditions under different tension and relaxation forces and cyclic loads, the toughness of the chain itself and its ability to resist the impact force and fatigue life generated by the change of the size of the device itself are tested. The strength and durability of the chain under different conditions can be comprehensively recorded to ensure that the chain can withstand the expected load during work, prevent the chain from sudden breakage or fatigue damage during work, and reduce the risk in later use.

[0022] By setting up a tooth expansion component, using a push rod, a driving wheel, a driven wheel, a second rack, a force-bearing telescopic frame, a scissor bracket, a tooth, a telescopic pressure sensor and a cylindrical rack, when the chain is under test, the independent tooth expansion component can apply equidistant and equal-strength forces to the gaps between the chain connections, avoiding the singleness of the chain strength test method and causing one-sided data. At the same time, it simulates the chain in a real environment and faces strength tests at different strengths and different positions. It finds the load and strength that the chain can withstand in different environments, as well as the chain's own adaptability, improves the accurate control of the chain's quality and service life, and avoids the chain from being worn by other components in the transmission system during continuous stretching and wear acceleration, resulting in chain jumping and other problems, affecting safety and transmission efficiency. At the same time, the addition of industrial cameras can more accurately record the changes that occur in the chain strength test itself, better summarize the data, and obtain accurate strength information of the chain, avoiding the occurrence of safety problems and low transmission efficiency. ‌ BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0024] Figure 1 This is a schematic diagram of the main three-dimensional structure of the chain strength testing mechanism;

[0025] Figure 2 This is a three-dimensional structural diagram of the chain strength testing mechanism from another perspective;

[0026] Figure 3 It is a schematic diagram of the internal plane structure of the machine body;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure inside the box;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the stretching adjustment component;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the upper part of the machine body;

[0030] Figure 7 It is a three-dimensional structural diagram of the position relationship between the chain and the baffle;

[0031] Figure 8 It is a three-dimensional structural schematic diagram of the position relationship between the arc-shaped receiving plate and the latching teeth;

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of the support and adjustment component;

[0033] Fig.10It is a schematic diagram of the three-dimensional structure of the tooth expansion component.

[0034] Reference numerals:

[0035] 1. Machine body; 2. Gear rack; 3. Slide bracket; 4. Slider; 5. Cavity; 6. Stretch adjustment assembly; 61. Force seat; 62. Bracket rod; 63. First rack; 64. Gear; 65. Elastic rack; 7. Support adjustment assembly; 71. Electro-hydraulic push rod; 72. Push plate; 73. Turntable; 74. Rotating shaft seat; 75. Connecting rod; 76. Telescopic support frame; 77. Baffle; 78. Arc receiving plate; 8. Gear expansion Tension assembly; 81. Push rod; 82. Driving wheel; 83. Driven wheel; 84. Second rack; 85. Force-bearing telescopic frame; 86. Scissors bracket; 87. Clamping tooth; 88. Telescopic pressure sensor; 89. Cylindrical rack; 9. Support column; 10. Control center; 11. Telescopic cover; 12. Box; 13. Piezoresistive pressure sensor; 14. Electric push rod; 15. Industrial camera; 16. Chain; 17. Servo motor.

[0036] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0037] The following is a detailed description of a chain strength testing mechanism provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0038] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0039] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0040] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0041] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0042] like Figures 1 to 10As shown, an embodiment of the present invention provides a chain strength testing mechanism, including a body 1, a rack frame 2 is installed on the top of the body 1, an industrial camera 15 is meshed and connected to the front end of the rack frame 2, a slide bracket 3 is installed at one end of the rack frame 2, a slider 4 is slidably connected inside the slide bracket 3, a cavity 5 is installed at the front end of the slider 4, a servo motor 17 is installed inside the cavity 5, a support column 9 is installed at the bottom of the cavity 5, a telescopic cover 11 is installed on the bottom surface of the support column 9, a control center 10 is installed at the front end of the body 1, a box 12 is installed on the top inner wall of the body 1, and a piezoresistive pressure sensor 13 is installed at the bottom of the box 12 An electric push rod 14 is installed at one end of the piezoresistive pressure sensor 13, and a chain 16 is installed at the output end of the servo motor 17; it also includes a stretching adjustment component 6, a stretching adjustment component 6 is installed inside the box 12, and the stretching adjustment component 6 is used to provide power output for stretching the chain 16; it includes a support adjustment component 7, a support adjustment component 7 is installed at the output end of the servo motor 17, and the support adjustment component 7 is used to stretch the gap between the chains 16; it includes a tooth expansion component 8, a tooth expansion component 8 is installed inside the support adjustment component 7, and the tooth expansion component 8 is used to detect the expansion force of the gap at the connection of the chain 16.

[0043] As an implementation method in this embodiment, Figures 3 to 5 As shown, the telescopic cover 11 is sleeved on the surface of the support column 9, the telescopic cover 11 is slidably installed on the inner wall of the top groove of the body 1, the chain 16 is sleeved on the surface of the support adjustment component 7, the tension adjustment component 6 includes a force-bearing seat 61, the force-bearing seat 61 is installed at the bottom of the box body 12, the force-bearing seat 61 is installed on the output path of the electric push rod 14, one end of the force-bearing seat 61 is installed with a bracket rod 62, one end of the bracket rod 62 is installed with a first rack 63, and the end of the bracket rod 62 away from the first rack 63 is installed with an elastic frame 65, the surface of the first rack 63 is meshed and connected with a gear 64, the first rack 63 has two groups, and the two groups of first racks 63 are respectively meshed and connected to the top and bottom of the gear 64, when the tension adjustment component 6 is subjected to When the electric push rod 14 is pushed, the force-bearing seat 61 moves in the direction of movement of the electric push rod 14. When the force-bearing seat 61 moves, the bracket rod 62 installed at one end of the force-bearing seat 61 moves synchronously inside the box body 12. When the bracket rod 62 moves, the elastic frame 65 installed at one end of the bracket rod 62 is squeezed and begins to shrink. At the same time, the first rack 63 at the other end of the bracket rod 62 moves. When the first rack 63 starts to move, the gear 64 meshing with the surface of the first rack 63 starts to rotate. After the gear 64 starts to rotate, the first rack 63 meshing with the top of the gear 64 starts to move in the opposite direction with the first rack 63 meshing with the bottom of the gear 64. At the same time, the support column 9 at the top of the bracket rod 62 starts to move.

[0044] As an implementation method in this embodiment, Figures 6 to 9As shown, the support adjustment component 7 includes an electro-hydraulic push rod 71, which is mounted at one end of the cavity 5, and a push plate 72 is mounted at the output end of the electro-hydraulic push rod 71, and the push plate 72 is slidably connected to the output end of the servo motor 17, and one end of the push plate 72 is slidably connected to a turntable 73, and one end of the turntable 73 is mounted with a shaft seat 74, and the turntable 73 and the output end of the servo motor 17 are connected to each other, and the inside of the shaft seat 74 is rotatably connected with a connecting rod 75, and a baffle 77 is mounted at one end of the connecting rod 75. A telescopic support frame 76 is mounted at the bottom of the baffle 77, and the bottom of the telescopic support frame 76 is mounted on the surface of the output end of the servo motor 17, and an arc-shaped receiving plate 78 is mounted at one end of the telescopic support frame 76. When the output end of the electro-hydraulic push rod 71 is in operation, the push plate 72 connected to the output end of the electro-hydraulic push rod 71 starts to move, and when the push plate 72 moves, the surface of the turntable 73 When the cam 75 is in the forward direction, the chain 16 is in the forward direction, and the chain 16 is in the forward direction, so that the cam 75 can move in a reverse direction, thereby stopping the cam 16 from moving in a reverse direction.

[0045] As an implementation method in this embodiment, Figures 7 to 10As shown, the latch expansion assembly 8 includes a telescopic pressure sensor 88, which is mounted at one end of the turntable 73, a push rod 81 is mounted at one end of the telescopic pressure sensor 88, a cylindrical rack 89 is mounted at the output end of the push rod 81, a driving wheel 82 is meshedly connected to the surface of the cylindrical rack 89, a driven wheel 83 is mounted at one end of the driving wheel 82, a second rack 84 is meshedly connected to the surface of the driven wheel 83, a force-bearing telescopic frame 85 is mounted at one end of the second rack 84, a scissor-type bracket 86 is mounted at one end of the force-bearing telescopic frame 85, a latch 87 is mounted at one end of the scissor-type bracket 86, and multiple groups of latches 87 are respectively arranged at the intersection of the scissor-type bracket 86. When the push rod 81 is started, the output end of the push rod 81 begins to extend. When the output end of the push rod 81 extends, the cylindrical rack 89 mounted at one end of the push rod 81 begins to move. When the gear 82 moves, the driving wheel 82 meshed with the cylindrical rack 89 starts to rotate. When the driving wheel 82 starts to rotate, the driven wheel 83 connected to one end of the driving wheel 82 also rotates. When the driven wheel 83 rotates, the second rack 84 meshed with one end of the driven wheel 83 starts to move. Then, when the second rack 84 starts to move, the force-bearing telescopic frame 85 connected to one end of the second rack 84 starts to move. When the force-bearing telescopic frame 85 starts to move, the scissor-type brackets 86 connected at both ends of the force-bearing telescopic frame 85 start to fold and move. At this time, the two ends of the force-bearing telescopic frame 85 follow the moving direction of the two ends of the scissor-type brackets 86 to retract or extend. When the scissor-type brackets 86 move, the latch 87 installed at one end of the scissor-type brackets 86 starts to move. When the latch 87 moves, the gap of the chain 16 that overlaps with the latch 87 expands to the instruction value and then stops.

[0046] The working principle of the technical solution provided by the present invention is as follows:

[0047] First, check the airtightness of the machine body 1 to prevent impurities from affecting the detection device during the test. Then install the industrial camera 15 on the rack frame 2, and then install the chain 16 to be tested. After the installation is completed, start the servo motor 17 inside the cavity 5. When the output end of the servo motor 17 starts to rotate, the rack starts to operate on the support adjustment component 7. Then, through the control center 10, the electric push rod 14 is stretched to the set displacement length. At this time, the output end of the electric push rod 14 starts to stretch. When the output end touches the stretching adjustment component 6 and continues to move, the piezoresistive pressure sensor 13 feeds back the obtained value to the control center 10.

[0048] When the stretch adjustment component 6 is pushed by the electric push rod 14, the force-bearing seat 61 moves in the running direction of the electric push rod 14. When the force-bearing seat 61 moves, the bracket rod 62 installed at one end of the force-bearing seat 61 moves synchronously inside the box body 12. When the bracket rod 62 moves, the elastic frame 65 installed at one end of the bracket rod 62 is squeezed and begins to shrink. At the same time, the first rack 63 at the other end of the bracket rod 62 moves. When the first rack 63 starts to move, the gear 64 meshing with the surface of the first rack 63 starts to rotate. After the gear 64 starts to rotate, the first rack 63 meshing with the top of the gear 64 starts to move in the opposite direction with the first rack 63 meshing with the bottom of the gear 64. At the same time, the support column 9 at the top of the bracket rod 62 starts to move. When the support column 9 starts to move, the telescopic cover 11 connected to the surface of the support column 9 starts to telescope. When the support column 9 moves, the cavity 5 installed on the top of the support column 9 moves in the same direction. When the cavity 5 moves, the slider 4 starts to move in the slide bracket 3.

[0049] When the stretching adjustment component 6 is finished running, the support adjustment component 7 is started, and a command is applied to the electro-hydraulic push rod 71 through the control center 10. When the output end of the electro-hydraulic push rod 71 is in operation, the push plate 72 connected to the output end of the electro-hydraulic push rod 71 starts to move. When the push plate 72 moves, the shaft seat 74 installed on the surface of the turntable 73 starts to move. When the shaft seat 74 moves, the connecting rod 75 starts to fold. When the connecting rod 75 starts to fold, the shaft seat 74 at the other end of the connecting rod 75 starts to move. When the shaft seat 74 moves, because the bottom of the telescopic support frame 76 is fixed, the shaft seat The top of the telescopic support frame 76 connected to the bottom 74 begins to stretch upward. When the telescopic support frame 76 stretches upward, the baffle 77 installed on the top of the telescopic support frame 76 moves upward synchronously to block the side of the chain 16. At the same time, when the telescopic support frame 76 moves upward, the arc-shaped receiving plate 78 installed at one end moves upward, and multiple groups of arc-shaped receiving plates 78 stretch in the direction in which they are located. When the multiple groups of arc-shaped receiving plates 78 stretch, the chain 16 is subjected to the force brought by the arc-shaped receiving plates 78 and begins to slowly prop up until it reaches the set strength value and stops.

[0050] When the chain 16 is slowly propped up by the arc-shaped receiving plate 78 and stops being propped up continuously, the latching tooth expansion assembly 8 is started, the push rod 81 is started, and the output end of the push rod 81 begins to extend. When the output end of the push rod 81 extends, the cylindrical rack 89 installed at one end of the push rod 81 begins to move. When the cylindrical rack 89 moves, the driving wheel 82 meshing with the cylindrical rack 89 begins to rotate. When the driving wheel 82 starts to rotate, the driven wheel 83 connected to one end of the driving wheel 82 also rotates. When the driven wheel 83 rotates, the second rack 84 meshing with one end of the driven wheel 83 begins to move. Then, when the second rack 84 starts to move, the force-bearing telescopic frame 85 connected to one end of the second rack 84 begins to move. When the force-bearing telescopic frame 85 When starting to move, the scissor brackets 86 connected at both ends of the force-bearing telescopic frame 85 begin to fold and move. At this time, the two ends of the force-bearing telescopic frame 85 follow the moving direction of the two ends of the scissor brackets 86 to retract or extend. When the scissor brackets 86 move, the latch 87 installed at one end of the scissor brackets 86 begins to move. When the latch 87 moves, the gap of the chain 16 that overlaps with the latch 87 expands to the instruction value and then stops. When the adjacent teeth 87 are at a specified distance, they stop. At this time, the telescopic pressure sensor 88 also transmits data back to the control center 10, and when the chain 16 strength testing device is in continuous operation, the industrial camera 15 continues to take pictures of the surface of the chain 16 and collects and feeds back data.

[0051] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A chain strength testing mechanism, characterized in that: It comprises a machine body, a rack frame is installed on the top of the machine body, an industrial camera is meshedly connected to the front end of the rack frame, a slide bracket is installed at one end of the rack frame, a slider is slidably connected inside the slide bracket, a cavity is installed at the front end of the slider, a servo motor is installed inside the cavity, a support column is installed at the bottom of the cavity, a telescopic cover is installed on the bottom surface of the support column, a control center is installed at the front end of the machine body, a box is installed on the top inner wall of the machine body, a piezoresistive pressure sensor is installed at the bottom of the box, an electric push rod is installed at one end of the piezoresistive pressure sensor, and a chain is installed at the output end of the servo motor; It also includes a stretching adjustment component, the stretching adjustment component is installed inside the box, and the stretching adjustment component is used to provide power output for stretching the chain; A support adjustment component is installed at the output end of the servo motor, and the support adjustment component is used to stretch the gap between the chains; A latching tooth expansion assembly is installed inside the support adjustment assembly, and the latching tooth expansion assembly is used to detect the expansion force of the gap at the chain connection; The telescopic cover is sleeved on the surface of the support column, the telescopic cover is slidably mounted on the inner wall of the groove at the top of the body, and the chain is sleeved on the surface of the support adjustment component; The stretch adjustment assembly includes a force bearing seat, which is installed at the bottom of the box body and on the output path of the electric push rod; A support rod is installed at one end of the force bearing seat, a first rack is installed at one end of the support rod, an elastic frame is installed at one end of the support rod away from the first rack, a gear is meshed and connected on the surface of the first rack, there are two groups of the first racks, and the two groups of the first racks are respectively meshed and connected to the top and bottom of the gear; The support adjustment assembly includes an electro-hydraulic push rod, which is installed at one end of the cavity, and a push plate is installed at the output end of the electro-hydraulic push rod, and the push plate is slidably connected to the output end of the servo motor, and one end of the push plate is slidably connected to a rotating disk; A rotating shaft seat is installed at one end of the rotating disk, the rotating disk is connected to the output end of the servo motor, and a connecting rod is rotatably connected inside the rotating shaft seat; A baffle is installed at one end of the connecting rod, a telescopic support frame is installed at the bottom of the baffle, the bottom of the telescopic support frame is installed on the surface of the output end of the servo motor, and an arc-shaped receiving plate is installed at one end of the telescopic support frame; The latch expansion assembly includes a telescopic pressure sensor, which is mounted at one end of the turntable, a push rod is mounted at one end of the telescopic pressure sensor, and a cylindrical rack is mounted at the output end of the push rod; The surface of the cylindrical rack is meshed with a driving wheel, one end of the driving wheel is mounted with a driven wheel, and the surface of the driven wheel is meshed with a second rack; A force-bearing telescopic frame is installed at one end of the second rack, a scissors bracket is installed at one end of the force-bearing telescopic frame, and a latch is installed at one end of the scissors bracket. The latch is provided in multiple groups, and the multiple groups of latches are respectively arranged at the intersection of the scissors bracket.

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