Tensile stress-strain performance testing equipment for rubber combined narrow V-shaped belt

Abstract

The utility model discloses equipment for testing the tensile stress-strain performance of a rubber combined narrow V-shaped belt, and relates to the technical field of rubber testing, the equipment comprises a bottom plate, and the top end of the bottom plate is respectively provided with a testing assembly and a protection assembly; the protection assembly comprises a protection shell, and a transparent observation plate is slidably arranged on one side of the outer wall of the protection shell. The testing assembly comprises an electric sliding rail and two movable sliding blocks, a C-shaped plate and a machine shell are fixedly installed at the top ends of the movable sliding blocks respectively, a first screw rod is rotatably installed on the inner wall of the machine shell, the top end of the first screw rod penetrates through the top end of the machine shell, and a first bevel gear is fixedly installed at the top end of the first screw rod. According to the V-belt stretching test device, the V-belt fixing and clamping efficiency is improved, the stretching test speed of the V-belt is effectively improved, the automatic opening and closing design of the transparent observation plate facilitates preparation work before the test, the protection effect is ensured in the test process, and the safety of the test process is improved.

Description

Technical Field

[0001] This utility model relates to the field of rubber testing technology, specifically to a testing device for the tensile stress-strain performance of rubber banded narrow V-belts. Background Technology

[0002] Rubber-strapped narrow V-belts, as key power transmission components, are widely used in various industries such as automotive, industrial machinery, and agricultural machinery. They have a ring-like structure, composed of multiple individual V-belts connected by a rubber matrix. Their performance directly affects the stability, reliability, and service life of the equipment. Tensile stress-strain performance is a core indicator for evaluating the quality of rubber-strapped narrow V-belts. Testing this performance allows for the acquisition of crucial data such as belt deformation, elastic recovery, and fatigue life under different tensile forces.

[0003] In the prior art, such as the tensile strength testing equipment for rubber sleeve production described in patent number CN221959894U, which relates to the field of rubber sleeve production technology, a base is included. This equipment comprises a fixed frame mounted on one side of the upper end of the base and a movable frame slidably connected to the other side of the upper end of the base. An adjustment component, which is kinetically connected to the movable frame, is fixedly mounted on the lower end of the fixed frame. A tensile testing instrument, which is fixedly connected to one side of the movable frame, is fixedly mounted on one side of the fixed frame. The upper ends of both the fixed frame and the movable frame have first openings. When it is necessary to clamp and position rubber rings of different sizes, the distance between the two mounting frames can be adjusted by using a second motor and a second screw to adjust the position of the moving block. This allows for adjustment of the mounting frame position according to the size of the rubber ring, facilitating the positioning of rubber rings of different sizes using a top plate and a support plate, thereby effectively improving the flexibility of the rubber sleeve tensile strength testing equipment.

[0004] While the aforementioned patent can perform tensile tests on rubber rings, it still has some problems. The device requires clamping both ends of the rubber ring separately before it can be subjected to tensile testing, which undoubtedly reduces the testing efficiency of the rubber ring. At the same time, the rubber ring may break during the tensile process, which may cause injury to the test personnel. Therefore, this utility model provides a tensile stress-strain performance testing device for rubber band narrow V-belts. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a testing device for the tensile stress-strain properties of rubber-jointed narrow V-belts. This solves the problem that it is necessary to clamp both ends of the rubber ring separately before tensile testing can be performed, which undoubtedly reduces the testing efficiency of the rubber ring. In addition, the rubber ring may break during the tensile process, which may cause injury to the testing personnel.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a rubber band narrow V-belt tensile stress-strain performance testing device, including a base plate, wherein a testing component and a protective component are respectively provided on the top of the base plate;

[0007] The protective assembly includes a protective shell, and a transparent observation plate is slidably disposed on one side of the outer wall of the protective shell;

[0008] The test assembly includes an electric slide rail, with two movable sliders respectively provided at the output end of the electric slide rail. A C-shaped plate and a housing are fixedly installed on the top of the movable sliders respectively. A first screw is rotatably installed on the inner wall of the housing. The top of the first screw passes through the top of the housing and is fixedly installed with a first bevel gear. A sliding bevel gear is meshed on the outer wall of the first bevel gear. A connecting plate is rotatably installed on the outer wall of the sliding bevel gear. One end of the outer wall of the connecting plate is fixedly connected to the housing.

[0009] Preferably, the electric slide rail is fixedly installed on the top of the base plate, and two vertical plates are fixedly installed on the top of the electric slide rail. A rotating rod is rotatably installed between the opposite sides of the two vertical plates. Two slide bars are fixedly installed on the outer wall of the rotating rod, and the two sliding bevel gears are slidably connected to the rotating rod and the two slide bars.

[0010] Preferably, a pressure sensor is fixedly installed on one side of the inner wall of the C-shaped plate, a compression plate is fixedly installed on the outer wall of the pressure sensor, a movable plate is threadedly connected to the outer wall of the first screw, a first motor is fixedly installed on the outer wall of one of the two vertical plates, and the output shaft of the first motor passes through the outer wall of the vertical plate and is fixedly connected to one end of the outer wall of the rotating rod.

[0011] Preferably, the protective shell is fixedly installed on the top of the base plate, and a second mounting plate is fixedly installed on both sides of the outer wall of the base plate. Two first mounting plates are fixedly installed on the top of the protective shell. A second screw is rotatably installed between the two second mounting plates and the opposite side of the first mounting plates. A second motor is fixedly installed on the top of the first mounting plate. The output shaft of the second motor passes through the bottom end of the first mounting plate and is fixedly connected to the top of the second screw.

[0012] Preferably, the outer wall of the protective shell is provided with grooves on both sides, and the inner wall of each of the two grooves is movably inserted with a connecting slider. The two connecting sliders are respectively threadedly connected to the two second screws, and the two connecting sliders are fixedly connected to the transparent observation plate.

[0013] Preferably, a controller is fixedly installed on the outer wall of the protective shell, and the controller is electrically connected to the electrical components in the test assembly and the protective assembly respectively. Beneficial effects

[0014] This invention provides a device for testing the tensile stress-strain properties of rubber-jointed narrow V-belts. Compared with the prior art, it has the following advantages:

[0015] 1. This rubber-coated narrow V-belt tensile stress-strain performance testing equipment, when a tensile test of the V-belt is required, first places both ends of the V-belt onto the inner wall of a C-shaped plate, then turns on the first motor. The first motor drives the rotating rod to rotate, which in turn drives two sliding bevel gears to rotate via a slide bar, thereby driving the first bevel gear to rotate, causing the first screw fixedly connected to the first bevel gear to rotate. The moving plate, threaded to the outer wall of the first screw, moves downward along the first screw under the action of the threads, so that the moving plate and the C-shaped plate form a frame structure, thereby simultaneously fixing both ends of the V-belt, improving the efficiency of V-belt fixing and clamping, and thus effectively increasing the speed of V-belt tensile testing.

[0016] 2. This rubber-coated narrow V-belt tensile stress-strain performance testing equipment, when the V-belt is undergoing tensile testing, activates the second motor, causing the transparent observation plate to slide down and close along the groove. During the test, the protective shell and the closed transparent observation plate form a sealed space, effectively preventing fragments from flying out when the rubber-coated narrow V-belt breaks, ensuring the safety of the testing personnel. Simultaneously, the operator can observe the test situation through the transparent observation plate. The automatic opening and closing design of the transparent observation plate facilitates pre-test preparation and ensures protective effectiveness during the test, improving the safety of the testing process compared to traditional equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0019] Figure 3 This is a schematic diagram of the overall structure of the present invention from other perspectives;

[0020] Figure 4 This is a schematic diagram of the relevant structure of the test component of this utility model;

[0021] Figure 5 This is a partial structural diagram of the test component of this utility model.

[0022] In the diagram: 1. Base plate; 2. Test assembly; 21. Electric slide rail; 24. Moving slider; 25. C-shaped plate; 26. Extrusion plate; 27. Housing; 28. First screw; 29. ​​First bevel gear; 210. Sliding bevel gear; 211. Connecting plate; 212. Rotating rod; 213. Moving plate; 214. Slide bar; 215. First motor; 216. Vertical plate; 3. Protective assembly; 31. Protective shell; 32. Transparent observation plate; 33. Connecting slider; 34. First mounting plate; 35. Second mounting plate; 36. Slide groove; 37. Second motor; 38. Second screw; 4. Controller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides two technical solutions:

[0025] Figures 1-5 The first embodiment is shown: a rubber band narrow V-belt tensile stress-strain performance testing device, including a base plate 1, and a testing component 2 and a protective component 3 respectively provided on the top of the base plate 1;

[0026] The protective component 3 includes a protective shell 31, and a transparent observation plate 32 is slidably disposed on one side of the outer wall of the protective shell 31;

[0027] Test component 2 includes an electric slide rail 21. The output end of the electric slide rail 21 is provided with two movable sliders 24. The top of the movable sliders 24 is fixedly installed with a C-shaped plate 25 and a housing 27, respectively. The inner wall of the housing 27 is rotatably installed with a first screw 28. The top of the first screw 28 passes through the top of the housing 27 and is fixedly installed with a first bevel gear 29. The outer wall of the first bevel gear 29 is meshed with a sliding bevel gear 210. The outer wall of the sliding bevel gear 210 is rotatably installed with a connecting plate 211. One end of the outer wall of the connecting plate 211 is fixedly connected to the housing 27. The connecting plate 211 can drive the sliding bevel gear 210 to move.

[0028] The electric slide rail 21 is fixedly installed on the top of the base plate 1. The electric slide rail 21 is existing technology and can be configured as a two-way lead screw, slide rail and power source. It can drive two movable sliders 24 to move to both sides at the same time. Two vertical plates 216 are fixedly installed on the top of the electric slide rail 21. A rotating rod 212 is rotatably installed between the opposite sides of the two vertical plates 216. Two sliding strips 214 are fixedly installed on the outer wall of the rotating rod 212. Two sliding bevel gears 210 are slidably connected to the rotating rod 212 and the two sliding strips 214. The two sliding bevel gears 210 can slide on the surface of the rotating rod 212 and the two sliding strips 214. Due to the setting of the sliding strips 214, when the rotating rod 212 rotates, it can drive the two sliding bevel gears 210 to rotate at the same time.

[0029] A pressure sensor is fixedly installed on one side of the inner wall of the C-shaped plate 25. An extrusion plate 26 is fixedly installed on the outer wall of the pressure sensor. A movable plate 213 is threadedly connected to the outer wall of the first screw 28. When the first screw 28 rotates, it can drive the movable plate 213 to rise and fall. When the movable plate 213 descends to contact the surface of the C-shaped plate 25, the two form a frame structure. The V-belt is a ring structure, so the two ends of the V-belt can be fixed to the inner wall of the C-shaped plate 25, thereby stretching the two ends of the C-shaped plate 25. When the two ends of the V-belt are stretched, they can squeeze the extrusion plate 26. The pressure sensor on the surface of the extrusion plate 26 can measure the magnitude of the tension on the two ends of the V-belt. A first motor 215 is fixedly installed on the outer wall of one of the two vertical plates 216. The output shaft of the first motor 215 passes through the outer wall of the vertical plate 216 and is fixedly connected to one end of the outer wall of the rotating rod 212.

[0030] Figures 1-5 The second embodiment is shown. The main difference from the first embodiment is that the protective shell 31 is fixedly installed on the top of the base plate 1. The outer walls of the base plate 1 are fixedly installed on both sides of the base plate 1. The top of the protective shell 31 is fixedly installed with two first mounting plates 34. The two second mounting plates 35 and the opposite side of the first mounting plates 34 are rotatably installed with second screws 38. The top of the first mounting plate 34 is fixedly installed with a second motor 37. The output shaft of the second motor 37 passes through the bottom end of the first mounting plate 34 and is fixedly connected to the top of the second screw 38. By controlling the second motor 37, the second screw 38 can be driven to rotate, thereby enabling the transparent observation plate 32 to be raised and lowered, which facilitates the tensile testing of the V-belt.

[0031] The outer walls of the protective shell 31 are provided with grooves 36 on both sides. Connecting sliders 33 are movably inserted into the inner walls of the two grooves 36. The grooves 36 can limit the connecting sliders 33. The two connecting sliders 33 are threadedly connected to the two second screws 38 respectively. The two connecting sliders 33 are fixedly connected to the transparent observation plate 32. The connecting sliders 33 can drive the transparent observation plate 32 to rise and fall.

[0032] A controller 4 is fixedly installed on the outer wall of the protective shell 31. The controller 4 is electrically connected to the electrical components within the test assembly 2 and the protective assembly 3. The controller 4 is existing technology and can precisely control the electrical components within the test assembly 2 and the protective assembly 3. During the test, the moving speed and distance of the electric slide rail 21 can be precisely adjusted through the controller 4 to simulate different tensile conditions and meet diverse testing needs. At the same time, the pressure sensor on the inner wall of the C-shaped plate 25 can collect stress data of the rubber banded narrow V-belt in real time and accurately during the tensile process, and transmit it to the controller 4 for analysis and processing.

[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0034] During operation, when a tensile test is required on the V-belt, both ends of the V-belt are first fitted onto the inner wall of the C-shaped plate 25. Then, the first motor 215 is turned on, driving the rotating rod 212 to rotate. The rotating rod 212, in turn, drives the two sliding bevel gears 210 to rotate via the slide bar 214, thereby driving the first bevel gear 29 to rotate, causing the first screw 28, which is fixedly connected to the first bevel gear 29, to rotate. The movable plate 213, threadedly connected to the outer wall of the first screw 28, moves downward along the first screw 28 under the action of the threads, so that the movable plate 213 and the C-shaped plate 25 form a frame structure, thereby simultaneously fixing both ends of the V-belt. Then, the second motor 37 is turned on, causing the transparent observation plate 32 to slide downward along the slide groove 36 and close. During the test, the protective shell 31 and the closed transparent observation plate 32 form a closed space, effectively blocking fragments that may fly out when the rubber-coated narrow V-belt breaks, ensuring the safety of the test personnel. Then, the electric slide rail 21 is turned on, and the electric slide rail 21 drives the two moving sliders 24 away from both sides. At this time, the two ends of the V belt will squeeze the extrusion plate 26 on the inner wall of the C-shaped plate 25. The pressure sensor on the surface of the extrusion plate 26 can detect the tension at both ends of the V belt. Then, combined with the deformation of the rubber band narrow V belt, its tensile stress-strain performance can be analyzed.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A testing device for the tensile stress-strain properties of a rubber-coated narrow V-belt, comprising a base plate (1), characterized in that: The top of the base plate (1) is respectively provided with a test component (2) and a protective component (3); The protective component (3) includes a protective shell (31), and a transparent observation plate (32) is slidably disposed on one side of the outer wall of the protective shell (31). The test component (2) includes an electric slide rail (21). The output end of the electric slide rail (21) is provided with two movable sliders (24). The top of the movable sliders (24) is fixedly installed with a C-shaped plate (25) and a housing (27). The inner wall of the housing (27) is rotatably installed with a first screw (28). The top of the first screw (28) passes through the top of the housing (27) and is fixedly installed with a first bevel gear (29). The outer wall of the first bevel gear (29) is meshed with a sliding bevel gear (210). The outer wall of the sliding bevel gear (210) is rotatably installed with a connecting plate (211). One end of the outer wall of the connecting plate (211) is fixedly connected to the housing (27).

2. The tensile stress-strain performance testing device for rubber-coated narrow V-belts according to claim 1, characterized in that: The electric slide rail (21) is fixedly installed on the top of the base plate (1). Two vertical plates (216) are fixedly installed on the top of the electric slide rail (21). A rotating rod (212) is rotatably installed between the opposite sides of the two vertical plates (216). Two slide bars (214) are fixedly installed on the outer wall of the rotating rod (212). Two sliding bevel gears (210) are slidably connected to the rotating rod (212) and the two slide bars (214).

3. The tensile stress-strain performance testing device for rubber-coated narrow V-belts according to claim 2, characterized in that: A pressure sensor is fixedly installed on one side of the inner wall of the C-shaped plate (25), and a compression plate (26) is fixedly installed on the outer wall of the pressure sensor. A moving plate (213) is threadedly connected to the outer wall of the first screw (28). A first motor (215) is fixedly installed on the outer wall of one of the two vertical plates (216). The output shaft of the first motor (215) passes through the outer wall of the vertical plate (216) and is fixedly connected to one end of the outer wall of the rotating rod (212).

4. The tensile stress-strain performance testing device for rubber-coated narrow V-belts according to claim 1, characterized in that: The protective shell (31) is fixedly installed on the top of the base plate (1). The outer walls of the base plate (1) are fixedly installed on both sides of the base plate (1). The top of the protective shell (31) is fixedly installed with two first mounting plates (34). The two second mounting plates (35) and the first mounting plates (34) are rotatably installed on opposite sides of each other. The top of the first mounting plate (34) is fixedly installed with a second motor (37). The output shaft of the second motor (37) passes through the bottom of the first mounting plate (34) and is fixedly connected to the top of the second screw (38).

5. The tensile stress-strain performance testing device for rubber-coated narrow V-belts according to claim 4, characterized in that: The outer walls of the protective shell (31) are provided with grooves (36) on both sides. The inner walls of the two grooves (36) are movably inserted with connecting sliders (33). The two connecting sliders (33) are threadedly connected to the two second screws (38) respectively. The two connecting sliders (33) are fixedly connected to the transparent observation plate (32).

6. The tensile stress-strain performance testing device for rubber-coated narrow V-belts according to claim 1, characterized in that: A controller (4) is fixedly installed on the outer wall of the protective shell (31), and the controller (4) is electrically connected to the electrical components in the test assembly (2) and the protective assembly (3).

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