Device for detecting tensile strength of heat-conducting silica gel sheet

Abstract

The utility model relates to the technical field of silica gel sheet detection, and discloses a heat-conducting silica gel sheet tensile strength detection device which comprises a bottom plate and two side plates, a hydraulic cylinder is transversely installed on the outer surface of each side plate, a push plate is installed at the tail end of each hydraulic cylinder through a pressure sensor, and fixing plates parallel to each other are fixed to the two sides of the surface of each push plate. Rollers are rotatably installed above and below the position between the fixing plates, gears are installed at the tail ends of the rollers in a transmission mode, and the gears of the two rollers are meshed with each other. According to the technical scheme, the push plates with the fixing plates are fixed to the tail ends of the hydraulic cylinders on the two sides, the rollers are rotationally installed above and below the position between the fixing plates, the rollers are in meshing transmission through the gears, the tail end of a silica gel sheet can abut against the position between the upper roller and the lower roller, and the silica gel sheet is prevented from being damaged. And then the rollers are rotated to pull the silica gel sheet to be clamped between the rollers by utilizing conical lines, and the silica gel sheet can be quickly clamped and fixed after the gear is locked, so that the tensile strength detection is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of silicone sheet detection, in particular to a thermal conductive silicone sheet tensile strength detection device. Background Art

[0002] Thermally conductive silicone sheet is a thermal conductive medium material synthesized through a special process with silicone as the base material and various auxiliary materials such as metal oxides. It can not only effectively improve the heat transfer efficiency, but also play the role of insulation, shock absorption and sealing. It can meet the design requirements of miniaturization and ultra-thin equipment. It is highly manufacturable and practical, and has a wide range of applicable thicknesses. It is an excellent thermal conductive filling material.

[0003] In order to obtain the performance parameters of the thermally conductive silicone sheet, it is necessary to sample and test the tensile strength of the thermally conductive silicone sheet. During the test, a clamp is needed to clamp and lock both sides of the silicone sheet. The traditional clamp is not convenient for quickly clamping and locking both sides of the silicone sheet. Therefore, we propose a thermally conductive silicone sheet tensile strength testing device. Utility Model Content

[0004] The purpose of the utility model is to provide a device for detecting the tensile strength of a thermally conductive silicone sheet, wherein push plates with fixed plates are fixed at the ends of hydraulic cylinders on both sides, rollers are rotatably installed above and below the fixed plates, and the rollers are driven by gear meshing, so that the end of the silicone sheet can be pressed against between the upper and lower rollers, and then the rollers are rotated to pull the silicone sheet to be stuck between the rollers using the tapered grooves, and after the gears are locked, the silicone sheet can be quickly clamped and fixed, which facilitates tensile strength testing and solves the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for detecting the tensile strength of a thermally conductive silicone sheet, comprising a bottom plate and a side plate, wherein two side plates are provided, and the two side plates are fixed on both sides of the surface of the bottom plate in parallel with each other; a hydraulic cylinder is installed laterally on the outer surface of the side plate, and the extended end of the hydraulic cylinder passes through the other side of the side plate, and a pressure sensor is installed at the end of the extended end of the hydraulic cylinder, and a push plate is installed at the end of the hydraulic cylinder through the pressure sensor; fixed plates parallel to each other are fixed on both sides of the surface of the push plate, and rollers are rotatably installed above and below the fixed plates, and gears are installed at the end of the rollers for transmission, and the gears are close to the outer surface of the fixed plate, and the gears of the two rollers are meshed with each other, and the outer surface of the roller is provided with a cone pattern.

[0006] By adopting the above technical solution, the two sides of the silicone sheet are placed between the upper and lower rollers on both sides. When the rollers are driven to rotate, the conical pattern can be used to pull the silicone sheet between the upper and lower rollers. After locking the gears, the silicone sheet can be quickly clamped and locked, making it convenient to perform tensile strength testing.

[0007] Optionally, a turntable is installed on the upper surface of the fixed plate on one side of the roller, and the turntable is drivingly connected to the roller on the upper inner side of the fixed plate.

[0008] By adopting the above technical solution, the upper roller can be driven to rotate with relatively less effort through a turntable with a larger size.

[0009] Optionally, a handle is vertically fixed to the surface of the turntable, and the handle is located at an outer side of the turntable surface.

[0010] By adopting the above technical solution, the handle located on the outer ring can be used to drive the turntable to rotate with less effort, thereby driving the roller to rotate.

[0011] Optionally, a screw hole is provided on the surface of the fixing plate on the side of the gear, and the screw hole is located between the teeth of the gear.

[0012] By adopting the above technical solution, after the side of the silicone sheet is clamped and locked between the rollers, a hand-tightened bolt is screwed into the screw hole to lock the gear, thereby locking the roller.

[0013] Optionally, a plurality of cones are evenly arranged on the outer ring surface of the roller, and the cones of the upper roller and the lower roller are staggered.

[0014] By adopting the above technical solution and utilizing a plurality of evenly distributed cones, it is possible to achieve tight and non-slip clamping and locking of the side edge of the silicone sheet.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. The technical solution of the present application is to fix push plates with fixed plates at the ends of the hydraulic cylinders on both sides, and rollers are rotatably installed above and below the fixed plates. The rollers are driven by gear meshing, so that the end of the silicone sheet can be pressed between the upper and lower rollers, and then the rollers are rotated to pull the silicone sheet between the rollers using the tapered grooves. After locking the gears, the silicone sheet can be quickly clamped and fixed, which is convenient for tensile strength testing.

[0017] 2. The technical solution of the present application is to connect a turntable to the side of the upper roller through a transmission, and the turntable and the roller can be driven to rotate effortlessly through a handle fixed on the outer ring surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of the thermal conductive silicone sheet tensile strength testing device of the utility model;

[0020] Figure 2 It is a detailed structural diagram of the push plate side of the thermal conductive silicone sheet tensile strength testing device of the utility model;

[0021] Figure 3 It is a schematic diagram of the surface structure of the fixed plate on the other side of the turntable of the thermal conductive silicone sheet tensile strength detection device of the utility model.

[0022] In the figure: 1, bottom plate; 2, side plate; 3, hydraulic cylinder; 31, pressure sensor; 4, push plate; 41, fixing plate; 411, screw hole; 5, roller; 51, cone; 52, turntable; 521, handle; 53, gear. DETAILED DESCRIPTION

[0023] See also Figure 1-3 The utility model provides a technical solution: a thermal conductive silicone sheet tensile strength detection device, comprising a bottom plate 1 and a side plate 2, wherein two side plates 2 are provided, and the two side plates 2 are fixed on both sides of the surface of the bottom plate 1 in parallel with each other, and the side plates 2 on both sides are perpendicular to the surface of the bottom plate 1.

[0024] Hydraulic cylinders 3 are installed horizontally at equal heights on the outer surfaces of the side panels 2 on both sides. The extended ends of the hydraulic cylinders 3 extend through the other side of the side panels 2. A pressure sensor 31 is installed at the end of the extended ends of the hydraulic cylinders 3. A push plate 4 is installed at the end of the hydraulic cylinders 3 through the pressure sensor 31. The hydraulic cylinders 3 can drive the push plate 4 to move inward or outward, and the pressure sensor 31 can detect the pressure or tension between the push plate 4 and the end of the hydraulic cylinder 3.

[0025] Fixed plates 41 are fixed on both sides of the surface of the push plate 4, and the fixed plates 41 are perpendicular to the surface of the push plate 4, and the fixed plates 41 are parallel to each other, and rollers 5 are rotatably installed above and below the fixed plates 41, and gears 53 are transmission-installed at the ends of one side of the two rollers 5, and the gears 53 are close to the outer surface of the fixed plate 41, and the upper and lower gears 53 are meshed with each other to achieve transmission connection between the rollers 5. When one roller 5 rotates, it can drive the other roller 5 to rotate in the opposite direction, and the outer surface of the roller 5 is provided with a cone 51, and the outer ring surface of the roller 5 is evenly provided with a plurality of cones 51, and the cones 51 of the upper roller 5 and the lower roller 5 are staggered. The silicone sheet is placed between the upper and lower rollers 5, and when the roller 5 rotates toward the inner side of one side of the silicone sheet, the side edge of the silicone sheet can be pulled between the upper and lower rollers 5 in cooperation with the cone 51 to achieve clamping and locking of the side edge of the silicone sheet.

[0026] A turntable 52 is installed on the upper surface of the fixed plate 41 away from the side of the roller 5. The turntable 52 is transmission-connected to the roller 5 on the upper inner side of the fixed plate 41. A handle 521 is vertically fixed to the surface of the turntable 52. The handle 521 is located on the outer side of the surface of the turntable 52. The turntable 52 can be driven to rotate effortlessly through the handle 521, and the roller 5 can also be driven to rotate effortlessly. A screw hole 411 is opened on the surface of the fixed plate 41 on the side of the gear 53. The screw hole 411 is located between the teeth of the gear 53. When the side of the silicone sheet is clamped and locked, a bolt is screwed into the screw hole 411 to make it stuck between the teeth, locking the gear 53, thereby achieving locking of the roller 5.

[0027] When in use, the hydraulic cylinder 3 is connected to the hydraulic workstation, and the sensor is connected to its receiver. First, the hydraulic cylinder 3 drives the push plates 4 and the fixed plates 41 on both sides to approach the inside, so that one side of the silicone sheet is pressed against the two rollers 5 placed between the fixed plates 41. Then, the handle 521 is used to drive the turntable 52 to rotate, driving the upper roller 5 to rotate, and the lower roller 5 is driven to rotate under the transmission action of the gear 53, so that the upper and lower rollers 5 rotate to pull the silicone sheet in the direction of the push plate 4, so that the end of the silicone sheet is clamped and locked between the upper and lower rollers 5 through the cone 51, and then the bolt is screwed into the screw hole 411 between the teeth of the gear 53. The gear 53 is locked so that it cannot rotate, thereby locking the gear 53 and the roller 5. Then, the same method is used to clamp and lock the other side of the silicone sheet between the two rollers 5 at the end of the hydraulic cylinder 3 on the other side, thereby quickly clamping the silicone sheet. Then, the hydraulic cylinders 3 on both sides are controlled to slowly drive the push plate 4 to move outward, thereby pulling the silicone sheet outward. The tensile force value measured by the pressure sensor 31 at the moment the silicone sheet breaks is observed, and the tensile strength data of the silicone sheet can be obtained. After testing, the bolt screwed into the screw hole 411 is unscrewed, and the turntable 52 and the roller 5 can be driven to rotate again by the handle 521 to release the clamped silicone sheet.

Claims

1. A thermally conductive silicone sheet tensile strength testing device, comprising a bottom plate (1) and a side plate (2), characterized in that: The side panels (2) are provided with two, and the two side panels (2) are fixed parallel to each other on both sides of the surface of the bottom panel (1); A hydraulic cylinder (3) is transversely mounted on the outer surface of the side plate (2), the extended end of the hydraulic cylinder (3) penetrates the other side of the side plate (2), a pressure sensor (31) is mounted at the end of the extended end of the hydraulic cylinder (3), and a push plate (4) is mounted at the end of the hydraulic cylinder (3) through the pressure sensor (31); The push plate (4) is fixed with mutually parallel fixing plates (41) on both sides of its surface, and rollers (5) are rotatably installed above and below the fixing plates (41), and gears (53) are installed at the ends of the rollers (5), the gears (53) are close to the outer surfaces of the fixing plates (41), and the gears (53) of the two rollers (5) are meshed with each other, and the outer surfaces of the rollers (5) are provided with cones (51).

2. A thermally conductive silicone sheet tensile strength detection device according to claim 1, characterized in that: A rotating disk (52) is installed on the upper surface of the fixed plate (41) on one side of the roller (5), and the rotating disk (52) is drivingly connected to the roller (5) on the upper inner side of the fixed plate (41).

3. A thermally conductive silicone sheet tensile strength detection device according to claim 2, characterized in that: A handle (521) is vertically fixed to the surface of the rotating disk (52), and the handle (521) is located at an outer side of the surface of the rotating disk (52).

4. A thermally conductive silicone sheet tensile strength detection device according to claim 1, characterized in that: A screw hole (411) is provided on the surface of the fixing plate (41) on the side of the gear (53), and the screw hole (411) is located between the teeth of the gear (53).

5. A thermally conductive silicone sheet tensile strength detection device according to claim 1, characterized in that: The outer ring surface of the roller (5) is evenly provided with a plurality of cones (51), and the cones (51) of the upper roller (5) and the lower roller (5) are distributed in a staggered manner.

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