Bismuth telluride-based thermoelectric material strength testing equipment

Abstract

The invention discloses bismuth telluride-based thermoelectric material strength testing equipment, and relates to the technical field of testing equipment.The bismuth telluride-based thermoelectric material strength testing equipment comprises a base, the top of the base is fixedly connected with a bottom plate and a fixing plate, and the top of the bottom plate is fixedly connected with a supporting plate. Through cooperation of assemblies such as an arc-shaped block and a clamping groove, a mounting column can be mounted at the bottom of a lifting rod, then a bismuth telluride-based thermoelectric material piece is placed in a placement seat, and then a motor is started to drive a threaded rod to rotate, so that the lifting rod moves downwards to drive the mounting column to move downwards; the installation column moves downwards to drive the drill bit at the bottom to make contact with the bismuth telluride-based thermoelectric material piece, when the hardness of the bismuth telluride-based thermoelectric material piece is enough, the installation column and the drill bit move upwards relative to the lifting rod, and therefore the effect that too large burden cannot be brought to a motor during testing is achieved. And when the hardness is insufficient, the drill bit can penetrate through the bismuth telluride-based thermoelectric material piece.

Description

Technical Field

[0001] The present invention relates to the technical field of testing equipment, and in particular to a bismuth telluride-based thermoelectric material strength testing device. Background Art

[0002] Bismuth telluride is a semiconductor material with good electrical conductivity but poor thermal conductivity. While the danger of bismuth telluride is low, ingesting large amounts can be fatal. However, this material allows electrons to move energy-free across its surface at room temperature, significantly increasing the speed and efficiency of computer chips.

[0003] Patent document CN113433010A discloses a metal surface hardness testing device for high-end equipment manufacturing. The technical problem of this invention is to provide a metal surface hardness testing device for high-end equipment manufacturing that can quickly test the hardness of metal materials. The metal surface hardness testing device for high-end equipment manufacturing includes: a base plate with an operating table on top of the base plate; and a testing mechanism with a testing mechanism on top of the operating table.

[0004] In the above document, the metal material is placed on the operating table so that it is under the test drill bit, and then the cylinder is started. The telescopic rod of the cylinder extends to drive the first sleeve, the first spring, the circular baffle and the test drill bit to move downward, so that the test drill bit will contact the metal material. When the metal material is hard enough, the test drill bit will stop moving downward and the first sleeve will continue to move downward. After the drill bit contacts the metal material, the first sleeve, the first spring, the circular baffle and the test drill bit will continue to move downward, which will easily cause a burden on the cylinder, accelerate the aging of the cylinder, and is not conducive to the use of the overall device. Therefore, it needs to be improved. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a bismuth telluride-based thermoelectric material strength testing device, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a bismuth telluride-based thermoelectric material strength testing device, including a base, the top of the base is fixedly connected to a bottom plate and a fixed plate, the top of the bottom plate is fixedly connected to a support plate, the top of the support plate is fixedly connected to a top plate, a motor is fixedly installed on the top of the top plate, a controller is provided on the top of the base, and a testing mechanism is provided on the top of the bottom plate; the testing mechanism includes a threaded rod, a sliding rod and a placement seat, the top of the threaded rod is fixedly connected to the output shaft of the motor, the bottom of the sliding rod is fixedly connected to the top of the bottom plate, the surface of the sliding rod is slidably connected to a lifting block, and the top of the lifting block is penetrated The lifting rod is passed through and fixedly connected, and the lifting rod is threadedly connected to the threaded rod through a built-in thread. A spring telescopic rod is provided at the internal top of the lifting rod, and a stop block is slidably connected to the inside of the lifting rod through the spring telescopic rod. A groove is provided on the inner wall of the lifting rod, and a telescopic spring is provided inside the groove. The inside of the groove is elastically connected to an arc block through the telescopic spring, and one end of the arc block close to the telescopic spring is fixedly connected to a pull rod, and a mounting column is inserted into the interior of the lifting rod, and a drill bit is fixedly connected to the bottom of the mounting column. A card slot is provided on the surface of the mounting column, and the placement seat is fixedly connected to the top of the base. A reminder mechanism is provided at the rear end of the lifting rod.

[0007] According to the above technical solution, a wire is provided on the side of the controller, the motor is electrically connected to the controller through the wire, and the end of the fixing plate away from the base is fixedly connected to the wire, and the motor can be controlled to open and close by the controller.

[0008] According to the above technical solution, an open groove is provided at the inner bottom of the placement seat, and a hydraulic chamber is fixedly connected to the interior of the placement seat. The internal piston at one end of the hydraulic chamber is slidably connected to the piston rod A, and the top of the piston rod A is fixedly connected to a pressure plate. The surface of the piston rod A is sleeved with a compression spring, and the internal piston at the other end of the hydraulic chamber is slidably connected to the piston rod B, and the top of the piston rod B is fixedly connected to a lifting plate. A waste chip collection mechanism is provided at the rear end of the placement seat.

[0009] According to the above technical solution, the opening size of the groove is equal to the opening size of the card slot, and the arc surface of the arc block faces the bottom of the lifting rod. The arc block is stuck in the card slot so that the mounting column cannot move downward and separate from the lifting rod. When the arc surface of the arc block is squeezed, it will shrink into the groove.

[0010] According to the above technical solution, the reminder mechanism includes a rotating rod, a slider, a mounting plate and a gear rod, the two ends of the rotating rod are respectively fixedly connected to the driven gear and the connecting plate, the rear end of the connecting plate is fixedly connected to the connecting column A, the surface of the connecting column A is rotatably connected to the connecting rod, the slider is slidably connected to the rear end of the lifting rod, the top of the slider passes through and is fixedly connected to a straight rod, the rear end of the straight rod is fixedly connected to the connecting column B, the end of the connecting rod away from the connecting column A is rotatably connected to the connecting column B, the mounting plate is fixedly connected to the rear end of the lifting rod, a bell is provided on the top of the mounting plate, and the gear rod is fixedly connected to the top of the stop block.

[0011] According to the above technical solution, the bottom of the straight rod is close to the top of the bell in the initial state, and the teeth on the gear rod are adapted to the teeth on the driven gear. When the straight rod moves downward, it will hit the bell, causing the bell to make a sound. When the gear rod moves upward, its teeth will engage with the teeth on the driven gear, driving the driven gear to rotate.

[0012] According to the above technical solution, the waste chip collection mechanism includes a driving gear, a vertical rod, a long rod, a transmission belt, a pressure chamber and a collection tank, the driving gear is fixedly connected to the surface of the threaded rod, the vertical rod is rotatably connected to the bottom of the top plate, the surface of the vertical rod is fixedly connected with a rotating gear, the long rod is rotatably connected to the top of the bottom plate, the long rod is connected to the vertical rod through a transmission belt, the surface of the long rod is fixedly connected with an eccentric ring, the pressure chamber is fixedly connected to the top of the bottom plate, a reset spring is provided inside the pressure chamber, and the inside of the pressure chamber is reset by the reset spring The piston is slidably connected to a piston rod C, and the end of the piston rod C away from the pressure chamber is fixedly connected to a long plate, the bottom of the pressure chamber passes through and is fixedly connected to a suction pipe, the top of the pressure chamber passes through and is fixedly connected to a discharge pipe, and a one-way valve is provided inside the suction pipe and the suction pipe. The collection tank is opened inside the placement seat, and the end of the suction pipe away from the pressure chamber passes through and is fixedly connected to the collection tank. An inlet is opened on the front wall of the collection tank, and a filter is fixedly connected to the rear wall of the collection tank. An extrusion assembly is provided on the end of the long plate away from the piston rod C.

[0013] According to the above technical solution, the extrusion assembly includes an oil storage chamber and a connecting frame. The oil storage chamber is opened inside the long plate. The top of the oil storage chamber is penetrated by and fixedly connected with an oil filling pipe. The side of the oil storage chamber is penetrated by and fixedly connected with an oil smearing pipe. The connecting frame is fixedly connected to the end of the long plate away from the piston rod C, and the inner side of the connecting frame is rotatably connected to a rotating column.

[0014] According to the above technical solution, the driving gear is meshed with the rotating gear, and the diameter of the rotating gear is smaller than that of the driving gear. A closed door is provided on the side of the collecting tank, and the end of the suction pipe away from the pressure chamber is close to the filter. When the driving gear rotates, it drives the rotating gear to rotate, and one rotation of the driving gear will drive the rotating gear to rotate several times. The filter can prevent debris from entering the suction pipe.

[0015] According to the above technical solution, the end of the eccentric ring away from the long rod is close to the long plate, and the end of the oil lubricating tube away from the oil storage chamber is in contact with the surface of the rotating column. When the eccentric ring rotates with the long rod, it will contact the rotating column. When the rotating column rotates, the lubricating oil in the oil storage chamber will be spread to the surface of the rotating column through the oil lubricating tube.

[0016] The present invention provides a bismuth telluride-based thermoelectric material strength testing device. It has the following beneficial effects:

[0017] (1) The present invention sets up a testing mechanism so that the mounting post can be installed to the bottom of the lifting rod through the cooperation of components such as an arc block and a slot, and then the bismuth telluride-based thermoelectric material is placed in the placement seat. Then, the motor is turned on to drive the threaded rod to rotate, which will cause the lifting rod to move downward and drive the mounting post to move downward. The downward movement of the mounting post will drive the bottom drill bit to contact the bismuth telluride-based thermoelectric material. When the hardness of the bismuth telluride-based thermoelectric material is sufficient, the mounting post and the drill bit will move upward relative to the lifting rod, thereby achieving the effect of not bringing too much burden to the motor while testing. If the hardness is insufficient, the drill bit will penetrate the bismuth telluride-based thermoelectric material.

[0018] (2) The present invention sets a reminder mechanism so that when the hardness of the bismuth telluride-based thermoelectric material is sufficient, the mounting column and the drill bit will move upward relative to the lifting rod. At the same time, the gear rod, the driven gear rod, the rotating rod, the connecting rod and other components will cooperate to drive the vertical rod to move up and down repeatedly. The vertical rod will repeatedly move up and down and hit the bell, causing the bell to sound to remind the operator to turn off the motor in time.

[0019] (3) The present invention sets a waste collection mechanism so that the motor is turned on to drive the threaded rod to rotate. During the process of the threaded rod rotating to move the lifting rod up or down, the suction tube continuously absorbs the air in the collection tank through the cooperation of the driving gear, rotating gear, eccentric ring, extrusion assembly, pressure chamber and other components. The collection tank continuously forms a negative pressure and absorbs the waste generated by the fragmentation of the bismuth telluride-based thermoelectric material parts during the test in the placement seat through the inlet, thereby achieving the effect of centralized collection. The collection tank can be opened through the side closed door to take out the waste inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional front view of the overall structure of the present invention;

[0021] Figure 2 It is a three-dimensional side view of the overall structure of the present invention;

[0022] Figure 3 A three-dimensional schematic diagram of the test mechanism structure of the present invention;

[0023] Figure 4 A three-dimensional cross-sectional view of the test mechanism structure of the present invention;

[0024] Figure 5 For the present invention Figure 4 A magnified view of the structure at center A;

[0025] Figure 6 A three-dimensional cross-sectional view of the seat structure of the present invention;

[0026] Figure 7 A three-dimensional cross-sectional view of the reminder mechanism and waste collection mechanism of the present invention;

[0027] Figure 8 For the present invention Figure 7 A magnified view of the structure at B in the middle;

[0028] Figure 9 A three-dimensional cross-sectional view of the structure of the pressure chamber of the present invention;

[0029] Figure 10 For the present invention Figure 9 Magnified view of the structure at center C.

[0030] In the figure: 1. base; 2. bottom plate; 3. support plate; 4. top plate; 5. motor; 6. controller; 7. wire; 8. fixing plate; 9. testing mechanism; 91. threaded rod; 92. slide rod; 93. lifting block; 94. lifting rod; 95. spring telescopic rod; 96. stop block; 97. groove; 98. telescopic spring; 99. arc block; 910. pull rod; 911. mounting column; 912. drill bit; 913. card slot; 914. placement seat; 915. opening slot; 916. lifting plate; 917. hydraulic chamber; 918. piston rod A; 919. pressure plate; 920. compression spring; 921. piston rod B; 10. reminder mechanism; 101. rotating rod; 102. driven gear; 103. connecting plate; 10 4. Connecting column A; 105. Connecting rod; 106. Slider; 107. Straight rod; 108. Connecting column B; 109. Bell; 1010. Gear rod; 1011. Mounting plate; 11. Waste collection mechanism; 111. Driving gear; 112. Vertical rod; 113. Rotating gear; 114. Long rod; 115. Transmission belt; 116. Pressure chamber; 117. Return spring; 118. Piston rod C; 119. Long plate; 1110. Suction pipe; 1111. Discharge pipe; 1112. Collecting tank; 1113. Inlet port; 1114. Filter; 1115. Eccentric ring; 12. Extrusion assembly; 121. Oil storage chamber; 122. Oil filling pipe; 123. Oiling pipe; 124. Connecting frame; 125. Rotating column. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] See also Figure 1-10One embodiment of the present invention is: a bismuth telluride-based thermoelectric material strength testing device, including a base 1, the top of the base 1 is fixedly connected to a bottom plate 2 and a fixed plate 8, the top of the bottom plate 2 is fixedly connected to a support plate 3, the top of the support plate 3 is fixedly connected to a top plate 4, the top of the top plate 4 is fixedly installed with a motor 5, the top of the base 1 is provided with a controller 6, the side of the controller 6 is provided with a wire 7, the motor 5 is electrically connected to the controller 6 through the wire 7, the end of the fixed plate 8 away from the base 1 is fixedly connected to the wire 7, the motor 5 can be controlled to be turned on and off by the controller 6, and a testing mechanism 9 is provided on the top of the bottom plate 2; the testing mechanism 9 includes a threaded rod 91, a sliding rod 92 and a placement seat 914, the top of the threaded rod 91 is fixed to the output shaft of the motor 5 The bottom of the slide bar 92 is fixedly connected to the top of the bottom plate 2, and the surface of the slide bar 92 is slidably connected to a lifting block 93. The top of the lifting block 93 passes through and is fixedly connected to a lifting rod 94. The lifting rod 94 is threadedly connected to the threaded rod 91 through a built-in thread. A spring telescopic rod 95 is provided at the top of the lifting rod 94. The interior of the lifting rod 94 is slidably connected to a block 96 through the spring telescopic rod 95. A groove 97 is provided on the inner wall of the lifting rod 94. A telescopic spring 98 is provided inside the groove 97. The interior of the groove 97 is elastically connected to an arc block 99 through the telescopic spring 98. The opening size of the groove 97 is equal to the opening size of the slot 913. The arc surface of the arc block 99 faces the bottom of the lifting rod 94 and is stuck in the slot 913 through the arc block 99. The mounting post 911 is prevented from moving downward and separating from the lifting rod 94. The arc surface of the arc block 99 will shrink into the groove 97 when squeezed. The arc block 99 is fixedly connected to the end of the telescopic spring 98 with a pull rod 910. The interior of the lifting rod 94 is plugged with a mounting post 911. The bottom of the mounting post 911 is fixedly connected to a drill bit 912. A slot 913 is provided on the surface of the mounting post 911. The placement seat 914 is fixedly connected to the top of the base 1. The bottom of the placement seat 914 is provided with an open slot 915. The interior of the placement seat 914 is fixedly connected to a hydraulic tank 917. The internal piston of one end of the hydraulic tank 917 is slidably connected to a piston rod A918. The top of the piston rod A918 is fixedly connected to a pressure plate 919. The surface of the piston rod A918 is sleeved It is connected to a compression spring 920, and the internal piston at the other end of the hydraulic chamber 917 is slidably connected to a piston rod B921. The top of the piston rod B921 is fixedly connected to a lifting plate 916. A waste collection mechanism 11 is provided at the rear end of the placement seat 914. A reminder mechanism 10 is provided at the rear end of the lifting rod 94. The reminder mechanism 10 includes a rotating rod 101, a slider 106, a mounting plate 1011 and a gear rod 1010. The two ends of the rotating rod 101 are respectively fixedly connected to a driven gear 102 and a connecting plate 103. The rear end of the connecting plate 103 is fixedly connected to a connecting column A104. The surface of the connecting column A104 is rotatably connected to a connecting rod 105. The slider 106 is slidably connected to the rear end of the lifting rod 94. The top of the slider 106 passes through and is fixedly connected to a straight rod 107.The rear end of the straight rod 107 is fixedly connected to the connecting column B108. The end of the connecting rod 105 away from the connecting column A104 is rotatably connected to the connecting column B108. The mounting plate 1011 is fixedly connected to the rear end of the lifting rod 94. The top of the mounting plate 1011 is provided with a bell 109. The gear rod 1010 is fixedly connected to the top of the stop block 96. In the initial state, the bottom of the straight rod 107 is close to the top of the bell 109. The teeth on the gear rod 1010 match the teeth on the driven gear 102. When the straight rod 107 moves downward, it will hit the bell 109, causing the bell 109 to make a sound. When the gear rod 1010 moves upward, its teeth engage with the teeth on the driven gear 102, driving the driven gear 102 to rotate.

[0033] When in use, place the bismuth telluride-based thermoelectric material to be tested in the placement seat 914, and insert the installation column 911 from the bottom of the lifting rod 94. At the beginning, the arc surface of the arc block 99 is squeezed and retracted into the groove 97. When the groove 97 coincides with the card slot 913, the telescopic spring 98 rebounds and drives the arc block 99 to be clamped into the card slot 913. At this time, the installation column 911 can no longer move downward and separate from the lifting rod 94, thereby completing the installation of the installation column 911 and the drill bit 912. Turn on the motor 5 to drive the threaded rod 91 to rotate. The rotation of the threaded rod 91 will drive the lifting rod 94 to move downward through the cooperation between the threads. The downward movement of 94 will drive the mounting post 911 and the drill bit 912 to move downward, and the drill bit 912 will come into contact with the bismuth telluride-based thermoelectric material when it moves downward. At this time, if the hardness of the bismuth telluride-based thermoelectric material is not enough, the drill bit 912 will penetrate the bismuth telluride-based thermoelectric material. If the hardness of the bismuth telluride-based thermoelectric material is sufficient, the drill bit 912 and the mounting post 911 will be restricted by the bismuth telluride-based thermoelectric material and move upward relative to the lifting rod 94. The arc surface of the arc block 99 will be squeezed and compressed into the groove 97 again, thereby achieving the effect of testing the hardness of the bismuth telluride-based thermoelectric material. When the hardness of the bismuth telluride-based thermoelectric material is sufficient, the drill bit 912 and the mounting post 911 will be restricted by the bismuth telluride-based thermoelectric material and move upward relative to the lifting rod 94. The arc surface of the arc block 99 will be squeezed and compressed into the groove 97 again, thereby achieving the effect of testing the hardness of the bismuth telluride-based thermoelectric material. It will not bring too much burden to the motor 5. When the mounting column 911 moves upward relative to the lifting rod 94, it will also drive the gear rod 1010 to move upward. When the gear rod 1010 moves upward, its teeth engage with the teeth on the driven gear 102, which will drive the driven gear 102 to rotate. The rotation of the driven gear 102 drives the rotating rod 101 to rotate. The rotation of the rotating rod 101 drives the connecting plate 103 to rotate. The rotation of the connecting plate 103 drives the straight rod 107 to move vertically through the cooperation of the connecting column A 104, the connecting rod 105 and the connecting column B 108. When the straight rod 107 moves downward, it hits the bell 109, causing the bell 109 to ring. 9 makes a sound to remind the operator to turn off the motor 5 in time. When the bismuth telluride-based thermoelectric material needs to be removed, the pressure plate 919 can be pressed to drive the piston rod A918 to move downward, and the compression spring 920 is compressed. The downward movement of the piston rod A918 will drive the piston rod B921 and the lifting plate 916 to move upward through the hydraulic pressure in the hydraulic chamber 917. The upward movement of the lifting plate 916 will drive the bismuth telluride-based thermoelectric material to move upward to facilitate removal. Then the compression spring 920 drives the piston rod A918 and the pressure plate 919 to move upward and restore, and the piston rod B921 drives the lifting plate 916 to move downward and restore.

[0034] See also Figure 1-10On the basis of the above embodiment, in another embodiment of the present invention, the waste collection mechanism 11 includes a driving gear 111, a vertical rod 112, a long rod 114, a transmission belt 115, a pressure chamber 116 and a collection trough 1112, the driving gear 111 is fixedly connected to the surface of the threaded rod 91, the vertical rod 112 is rotatably connected to the bottom of the top plate 4, the surface of the vertical rod 112 is fixedly connected to the rotating gear 113, the long rod 114 is rotatably connected to the top of the bottom plate 2, the long rod 114 is transmission-connected to the vertical rod 112 through the transmission belt 115, the surface of the long rod 114 is fixedly connected to the eccentric ring 1115, the pressure chamber 116 is fixedly connected to the top of the bottom plate 2, and the interior of the pressure chamber 116 is provided with a complex The interior of the pressure chamber 116 is connected to the piston rod C118 through the reset spring 117 piston sliding connection, and the end of the piston rod C118 away from the pressure chamber 116 is fixedly connected to the long plate 119, the bottom of the pressure chamber 116 passes through and is fixedly connected to the suction pipe 1110, and the top of the pressure chamber 116 passes through and is fixedly connected to the discharge pipe 1111, and the suction pipe 1110 and the interior of the suction pipe 1110 are both provided with a one-way valve, and the collection tank 1112 is opened in the interior of the placement seat 914, and the end of the suction pipe 1110 away from the pressure chamber 116 passes through and is fixedly connected to the collection tank 1112, and the front wall of the collection tank 1112 is provided with an inlet 1113, and the collection tank 1112 is provided with a The rear wall is fixedly connected with a filter 1114, the driving gear 111 is meshed with the rotating gear 113, and the diameter of the rotating gear 113 is smaller than the diameter of the driving gear 111. A closed door is provided on the side of the collecting tank 1112. The end of the suction pipe 1110 away from the pressure chamber 116 is close to the filter 1114. When the driving gear 111 rotates, it drives the rotating gear 113 to rotate, and when the driving gear 111 rotates one circle, it drives the rotating gear 113 to rotate several circles. The filter 1114 can prevent debris from entering the suction pipe 1110. The end of the long plate 119 away from the piston rod C118 is provided with an extrusion assembly 12. The extrusion assembly 12 includes an oil storage chamber 121 and a connecting frame 124. The oil storage chamber 12 It is opened inside the long plate 119, with an oil filling pipe 122 passing through the top of the oil storage chamber 121 and fixedly connected thereto, and an oiling pipe 123 passing through the side of the oil storage chamber 121 and fixedly connected thereto, a connecting frame 124 being fixedly connected to the end of the long plate 119 away from the piston rod C118, and a rotating column 125 being rotatably connected to the inner side of the connecting frame 124, the end of the eccentric ring 1115 away from the long rod 114 being close to the long plate 119, and the end of the oiling pipe 123 away from the oil storage chamber 121 being in contact with the surface of the rotating column 125, and the eccentric ring 1115 being in contact with the rotating column 125 when rotating along with the long rod 114, and the lubricating oil in the oil storage chamber 121 being smeared onto the surface of the rotating column 125 through the oiling pipe 123 when the rotating column 125 rotates.

[0035] During use, when the hardness of the bismuth telluride-based thermoelectric material piece is not enough during the test process, the drill bit 912 will penetrate the bismuth telluride-based thermoelectric material piece, and the resulting debris will remain in the placement seat 914. In the process of the motor 5 driving the threaded rod 91 to rotate and drive the lifting rod 94 to rise and fall, the rotation of the threaded rod 91 will also drive the driving gear 111 to rotate, the rotation of the driving gear 111 will drive the rotating gear 113 to rotate, the rotation of the rotating gear 113 will drive the vertical rod 112 to rotate, the rotation of the vertical rod 112 will drive the long rod 114 to rotate through the transmission belt 115, the rotation of the long rod 114 will drive the eccentric ring 1115 to rotate, the rotation of the eccentric ring 1115 will squeeze the rotating column 125 to make the piston rod C118 move to the right, the return spring 117 is compressed, and when the surface of the rotating column 125 is rough, it will rotate under the friction of the eccentric ring 1115, and the rotating column 125 will rotate. During movement, the lubricating oil in the oil storage chamber 121 will be spread to the surface of the rotating column 125 through the oiling tube 123 for lubrication, reducing the wear of the eccentric ring 1115, and when the piston rod C118 moves to the right, it will squeeze the air in the pressure chamber 116 and discharge it through the exhaust pipe 1111. When the eccentric ring 1115 leaves the rotating column 125, the return spring 117 rebounds and drives the piston rod C118 to move left and restore. At this time, negative pressure is formed in the pressure chamber 116, and the air in the collection tank 1112 is sucked in through the suction tube 1110 to form a circulation, so that negative pressure is continuously formed in the collection tank 1112, and the waste generated by the breakage of the bismuth telluride-based thermoelectric material parts in the test process in the placement seat 914 is sucked in through the inlet 1113, so as to achieve the effect of centralized collection, and the collection tank 1112 can be opened through the side closed door to remove the waste.

[0036] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A bismuth telluride-based thermoelectric material strength testing device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a bottom plate (2) and a fixing plate (8), the top of the bottom plate (2) is fixedly connected to a support plate (3), the top of the support plate (3) is fixedly connected to a top plate (4), a motor (5) is fixedly mounted on the top of the top plate (4), a controller (6) is provided on the top of the base (1), and a testing mechanism (9) is provided on the top of the bottom plate (2); The testing mechanism (9) comprises a threaded rod (91), a sliding rod (92) and a placement seat (914), the top of the threaded rod (91) is fixedly connected to the output shaft of the motor (5), the bottom of the sliding rod (92) is fixedly connected to the top of the bottom plate (2), the surface of the sliding rod (92) is slidably connected to a lifting block (93), the top of the lifting block (93) is penetrated and fixedly connected to a lifting rod (94), the lifting rod (94) is threadedly connected to the threaded rod (91) through a built-in thread, the top of the lifting rod (94) is provided with a spring telescopic rod (95), the inside of the lifting rod (94) is slidably connected to a block (96) through the spring telescopic rod (95), and the lifting rod (94) is slidably connected to the top of the lifting rod (94). A groove (97) is provided on the inner wall of the rod (94), a telescopic spring (98) is provided inside the groove (97), an arc block (99) is elastically connected to the inside of the groove (97) through the telescopic spring (98), and a pull rod (910) is fixedly connected to one end of the arc block (99) close to the telescopic spring (98). A mounting column (911) is inserted into the interior of the lifting rod (94), a drill bit (912) is fixedly connected to the bottom of the mounting column (911), a slot (913) is provided on the surface of the mounting column (911), the placement seat (914) is fixedly connected to the top of the base (1), and a reminder mechanism (10) is provided at the rear end of the lifting rod (94).

2. The bismuth telluride-based thermoelectric material strength testing device according to claim 1, characterized in that: A wire (7) is provided on the side of the controller (6), the motor (5) is electrically connected to the controller (6) via the wire (7), and one end of the fixing plate (8) away from the base (1) is fixedly connected to the wire (7).

3. The bismuth telluride-based thermoelectric material strength testing device according to claim 2, characterized in that: An open groove (915) is provided at the bottom of the interior of the placement seat (914), and a hydraulic chamber (917) is fixedly connected to the interior of the placement seat (914). The internal piston at one end of the hydraulic chamber (917) is slidably connected to a piston rod A (918), and the top of the piston rod A (918) is fixedly connected to a pressure plate (919). A compression spring (920) is sleeved on the surface of the piston rod A (918), and the internal piston at the other end of the hydraulic chamber (917) is slidably connected to a piston rod B (921), and the top of the piston rod B (921) is fixedly connected to a lifting plate (916). A waste chip collection mechanism (11) is provided at the rear end of the placement seat (914).

4. The bismuth telluride-based thermoelectric material strength testing device according to claim 3, characterized in that: The opening size of the groove (97) is equal to the opening size of the clamping slot (913), and the arc surface of the arc block (99) faces the bottom of the lifting rod (94).

5. The bismuth telluride-based thermoelectric material strength testing device according to claim 4, characterized in that: The reminder mechanism (10) comprises a rotating rod (101), a slider (106), a mounting plate (1011) and a gear rod (1010). The two ends of the rotating rod (101) are fixedly connected to a driven gear (102) and a connecting plate (103), respectively. The rear end of the connecting plate (103) is fixedly connected to a connecting column A (104). The surface of the connecting column A (104) is rotatably connected to a connecting rod (105). The slider (106) is slidably connected to the rear end of the lifting rod (94). A straight rod (107) passes through and is fixedly connected to the top of the slider (106); a connecting column B (108) is fixedly connected to the rear end of the straight rod (107); an end of the connecting rod (105) away from the connecting column A (104) is rotatably connected to the connecting column B (108); the mounting plate (1011) is fixedly connected to the rear end of the lifting rod (94); a bell (109) is provided on the top of the mounting plate (1011); and the gear rod (1010) is fixedly connected to the top of the stop block (96).

6. The bismuth telluride-based thermoelectric material strength testing device according to claim 5, characterized in that: In the initial state, the bottom of the straight rod (107) is close to the top of the bell (109), and the teeth on the gear rod (1010) are adapted to the teeth on the driven gear (102).

7. The bismuth telluride-based thermoelectric material strength testing device according to claim 6, characterized in that: The waste chip collection mechanism (11) comprises a driving gear (111), a vertical rod (112), a long rod (114), a transmission belt (115), a pressure chamber (116) and a collection trough (1112); the driving gear (111) is fixedly connected to the surface of the threaded rod (91); the vertical rod (112) is rotatably connected to the bottom of the top plate (4); the surface of the vertical rod (112) is fixedly connected to a rotating gear (113); the long rod (114) is rotatably connected to the top of the bottom plate (2); the long rod (114) is transmission-connected to the vertical rod (112) via a transmission belt (115); the surface of the long rod (114) is fixedly connected to an eccentric ring (1115); the pressure chamber (116) is fixedly connected to the top of the bottom plate (2); a return spring (117) is provided inside the pressure chamber (116); and the interior of the pressure chamber (116) is piston-operated by the return spring (117). A piston rod C (118) is slidably connected, and one end of the piston rod C (118) away from the pressure chamber (116) is fixedly connected to a long plate (119). The bottom of the pressure chamber (116) is penetrated and fixedly connected to a suction pipe (1110), and the top of the pressure chamber (116) is penetrated and fixedly connected to a discharge pipe (1111). The suction pipe (1110) and the inside of the suction pipe (1110) are both provided with a one-way valve. The collection tank ( 1112) is opened inside the placement seat (914), the end of the suction pipe (1110) away from the pressure chamber (116) passes through and is fixedly connected to the collection tank (1112), the front wall of the collection tank (1112) is provided with an inlet (1113), the rear wall of the collection tank (1112) is fixedly connected with a filter (1114), and the end of the long plate (119) away from the piston rod C (118) is provided with an extrusion assembly (12).

8. The bismuth telluride-based thermoelectric material strength testing device according to claim 7, characterized in that: The extrusion assembly (12) includes an oil storage chamber (121) and a connecting frame (124). The oil storage chamber (121) is opened inside the long plate (119). An oil filling pipe (122) passes through and is fixedly connected to the top of the oil storage chamber (121). An oil smearing pipe (123) passes through and is fixedly connected to the side of the oil storage chamber (121). The connecting frame (124) is fixedly connected to an end of the long plate (119) away from the piston rod C (118). A rotating column (125) is rotatably connected to the inner side of the connecting frame (124).

9. The bismuth telluride-based thermoelectric material strength testing device according to claim 8, characterized in that: The driving gear (111) is meshed with the rotating gear (113), and the diameter of the rotating gear (113) is smaller than that of the driving gear (111). A closed door is provided on the side of the collecting tank (1112), and one end of the suction pipe (1110) away from the pressure chamber (116) is close to the filter screen (1114).

10. The bismuth telluride-based thermoelectric material strength testing device according to claim 9, characterized in that: One end of the eccentric ring (1115) away from the long rod (114) is close to the long plate (119), and one end of the oiling tube (123) away from the oil storage chamber (121) is in contact with the surface of the rotating column (125).

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