Five-station uniform-temperature 4T high-speed compressive strain testing machine

Abstract

The utility model relates to a five-station uniform-temperature 4T high-speed compressive strain testing machine, which comprises a constant-temperature furnace and a servo press, the lower part of the servo press extends into the constant-temperature furnace, the servo press comprises a screw rod and a driving mechanism for driving the screw rod to move up and down, the lower end of the screw rod is provided with a pressure head, and one or more groups of heat insulation components are arranged above the pressure head; the constant-temperature furnace comprises a pedestal and a furnace body installed on the pedestal, a plurality of furnace pipes are evenly distributed in an inner cavity of the furnace body, a heating coil is embedded in each furnace pipe, and a pressing seat corresponding to the pressing head in position is fixedly arranged in each furnace pipe. The five internal furnaces are heated independently, temperature control precision of each sample point is guaranteed, holes are formed in the two sides of the internal furnaces, temperature uniformity and five-station uniform temperature field environment are formed through circulation of air, a heat insulation assembly is arranged, 500-degree high temperature in the constant-temperature furnace is prevented from being transmitted to a driving mechanism, and meanwhile a water flow channel is arranged, so that the constant-temperature furnace is stable in temperature control. The pressure head is cooled through cooling water, and high-temperature heat insulation is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of even temperature pressure strain testing machine, especially five work position even temperature 4T high -speed pressure strain test machine. BACKGROUND

[0002] Strain testing machine is mainly used for measuring the pressure strength and strain-pressure relation of different materials in hot state, in the prior art, the hot state pressure testing machine is generally transformed from normal temperature pressure testing machine, the temperature in the heating furnace is heated to the required temperature by the heating system, the required pressure is applied to the sample by the pressurizing system, and the pressure value is detected by the pressure sensor, and it can only detect the pressure strength of a single sample in hot state, if multiple stations are set, temperature difference exists between the stations, and experimental error can be generated. UTILITY MODEL CONTENT

[0003] In order to overcome the defects of the prior art, a five-station even temperature 4T high-speed pressure strain testing machine is provided to solve the problems in the background art.

[0004] In order to achieve the above purpose, the utility model is realized by the following technical scheme:

[0005] A five-station even temperature 4T high-speed pressure strain testing machine, comprising a constant temperature furnace and a servo press, the servo press extends to the constant temperature furnace, the servo press comprises a lead screw and a driving mechanism for driving the lead screw to move up and down, a pressure head is arranged at the lower end of the lead screw, and a set or multiple sets of heat insulation components are arranged above the pressure head.

[0006] The constant temperature furnace comprises a pedestal and a furnace body mounted on the pedestal, a plurality of furnace tubes are uniformly distributed in the inner cavity of the furnace body, a heating coil is embedded in each furnace tube, and a pressure seat corresponding to the position of the pressure head is fixedly arranged in the furnace tube.

[0007] As a further technical scheme of the utility model: the driving mechanism comprises a servo motor, the servo motor is installed on a motor base, an upper seat is fixedly connected below the motor base, the output end of the servo motor is connected with a small pulley, a large pulley is arranged above the upper seat, the large pulley is located on one side of the small pulley, the large pulley and the small pulley are connected through a synchronous belt, the large pulley is installed on a rotating sleeve and drives the rotating sleeve to rotate, a lead screw nut is fixedly installed in the rotating sleeve, and the lead screw nut is rotatably installed on the lead screw.

[0008] As a further technical scheme of the utility model: fixed columns are arranged at the four corners of the upper seat, the upper end of the fixed column is fixedly connected with the upper seat, the lower end of the fixed column is fixedly connected with the lower seat, and a fixed column sleeve is arranged on the outer wall of the fixed column.

[0009] As a further technical scheme of the utility model: the heat insulation assembly includes a heat insulation sleeve sleeved on the outer wall of the lead screw, a sleeve is sleeved on the outer side of the heat insulation sleeve, an upper partition pad is arranged above the sleeve, a lower partition pad is arranged below the sleeve, a connector is arranged on the outer side of the sleeve, and the sleeve and the connector are threadedly connected.

[0010] As a further technical scheme of the utility model: a water flow channel is further arranged in the lead screw, and water inlets and outlets are arranged at the upper and lower ends of the water flow channel.

[0011] As a further technical scheme of the utility model: a pressure sensor is arranged above the pressure head, and the pressure sensor is fixedly installed on the lead screw.

[0012] As a further technical scheme of the utility model: a displacement sensor is arranged on one side of the fixed column, the lower end of the displacement sensor is connected with a pull plate, the lower end of the pull plate is connected with a connecting rod, and the connecting rod is connected with the heat insulation assembly.

[0013] As a further technical scheme of the utility model: a limiting plate is fixedly connected to the upper end of the lead screw, the limiting plate is installed on the limiting column at the two sides, an adjusting sleeve is arranged below the limiting plate, a fixing sleeve is threadedly connected in the inner cavity of the adjusting sleeve, the fixing sleeve is fixedly installed on the limiting column, and the lower end of the limiting column is fixedly connected with the upper seat.

[0014] As a further technical scheme of the utility model: a top cover is arranged above the furnace body, a through hole is formed in the top cover for the servo press to pass through, a furnace door is formed in the outer side of the furnace body, heat insulation cotton is arranged between the furnace can and the furnace body, a ventilation hole is formed in each furnace can, and a plurality of high-temperature-resistant fans are arranged in the inner cavity of the furnace body and driven to rotate by a fan motor arranged outside the furnace body.

[0015] As a further technical scheme of the utility model: a guide sleeve matched with the pressing base is arranged on the pressure head.

[0016] The utility model discloses the beneficial effect:

[0017] The utility model discloses five furnace cans are arranged in the constant-temperature furnace, five furnace cans temperature independent heating is heated, through independent heating temperature control, guarantee every sample point's temperature control precision, and the both sides of furnace can are opened simultaneously, under the action of high-temperature-resistant fan, through the circulation of wind, form temperature even, form five work position even temperature field environment, carry out five groups of test simultaneously, detect strain data, have the uniformity of external condition, and data can be compared mutually, through the consistency of multiple group actual data, verify the accuracy of theoretical data.

[0018] The heat insulation assembly is arranged above the pressure head, prevents the 500 DEG C high temperature in the constant temperature furnace from being transmitted to the driving mechanism, and simultaneously arranges a water flow channel, so that the pressure head is cooled by cooling water, high temperature insulation is realized, the experiment can be continuously carried out and the accuracy of test data is ensured, and the equipment is prevented from being damaged by high temperature.

[0019] The driving mechanism drives the lead screw to move up and down, the high-speed downward movement of the pressure head 100mm / s can be realized, the adjusting sleeve and the fixing sleeve are arranged, the speed stop of the pressure head can be realized, the downward movement speed of 100mm / s is maintained during the downward movement process, the pressure head is directly shot on the to-be-pressed object during the high-speed downward movement, and the stability of the test data is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a main structure schematic view of the utility model;

[0021] Figure 2 It is a main structure front view of the servo press;

[0022] Figure 3 It is a main structure front view of the constant temperature furnace;

[0023] Figure 4 It is a main structure top view of the constant temperature furnace;

[0024] Figure 5 It is a main structure left view of the servo press;

[0025] Figure 6 It is a main structure section view of the heat insulation assembly;

[0026] Figure 7 It is a main structure schematic view of the guide sleeve.

[0027] In the drawing: 1-constant temperature furnace, 10-fan motor, 11-base, 12-furnace body, 13-furnace tube, 14-heating coil, 15-top cover, 16-furnace door, 17-heat insulation cotton, 18-vent hole, 19-high temperature resistant fan, 2-servo press, 21-lead screw, 22-pressure head, 23-heat insulation assembly, 231-heat insulation sleeve, 232-joint sleeve, 233-upper separation pad, 234-lower separation pad, 235-joint, 236-water flow channel, 237-water flow inlet, 238-water flow outlet, 241-servo motor, 242-motor base, 243-small pulley, 244-large pulley, 245-synchronous belt, 246-rotation sleeve, 247-lead screw nut, 251-upper base, 252-fixing column, 253-lower base, 254-fixing column sleeve, 255-limiting plate, 256-limiting column, 257-adjusting sleeve, 258-fixing sleeve, 26-pressure sensor, 271-displacement sensor, 272-pull plate, 273-connecting rod, 274-, 28-pressing base, 29-guide sleeve, 4-heat insulation body. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0029] Referring to Figures 1-7 A five-station uniform temperature 4T high-speed compression strain testing machine, comprising a constant temperature furnace 1 and a servo press 2, the servo press 2 extends to the constant temperature furnace 1, the part of the servo press 2 extending to the constant temperature furnace 1 is provided with a heat insulation body 4, the constant temperature furnace 1 comprises a pedestal 11 and a furnace body 12 installed on the pedestal 11, a top cover 15 is arranged above the furnace body 12, and the top cover 15 is provided with through holes for the servo press 2 to pass through. The furnace body 12 is uniformly provided with a plurality of furnace cans 13, the number of the furnace cans 13 is five, heating coils 14 are embedded in each of the furnace cans 13, each of the furnace cans 13 is independently heated, and the temperature control precision of each of the furnace cans 13 is ensured through independent heating temperature control.

[0030] Heat insulation cotton 17 is arranged between the furnace cans 13 and the furnace body 12. The furnace body 12 is provided with furnace doors 16, the number of the furnace doors 16 is five, the positions at which the furnace doors 16 are arranged are matched with the positions of the furnace cans 13, and the lower end surface of the top cover 15 is also provided with heat insulation cotton 17.

[0031] Vent holes 18 are arranged on each of the furnace cans 13, the number of the vent holes 18 is four, a plurality of high-temperature-resistant fans 19 are arranged in the inner cavity of the furnace body 12, the high-temperature-resistant fans 19 are driven to rotate by a fan motor 10 arranged outside the furnace body 12, after the high-temperature-resistant fans 19 blow out air, the vent holes 18 of the furnace cans 13 form a circulation channel, the temperature is uniform, a uniform temperature field environment is formed, and different independent temperature tests can be performed on the five stations if the high-temperature-resistant fans 19 are stopped.

[0032] The servo press 2 is provided with five servo presses 2, the positions of the servo presses 2 correspond to the positions of the five furnace cans 13, the servo press 2 comprises a lead screw 21 and a driving mechanism for driving the lead screw 21 to move up and down, four fixed columns 252 are arranged outside the lead screw 21, the upper end of the fixed column 252 is fixedly connected with an upper seat 251, the lower end of the fixed column 252 is fixedly connected with a lower seat 253, a fixed column sleeve 254 is arranged on the outer wall of the fixed column 252, and the lower part of the fixed column 252 and the lower seat 253 extend into the furnace can 13.

[0033] The lower end of the screw rod 21 is provided with a pressing head 22, and a pressing seat 28 corresponding to the position of the pressing head 22 is fixedly arranged in the furnace tube 13. A block to be pressed is placed on the pressing seat 28. A guide sleeve 29 adapted to the pressing seat 28 is installed on the pressing head 22. The screw rod 21 is lowered to drive the pressing head 22 to be lowered to extrude the block to be pressed. The guide sleeve 29 prevents the pressing head 22 and the block to be pressed from being deviated during the pressing process.

[0034] The driving mechanism comprises a servo motor 241, the servo motor 241 is installed on a motor base 242, the lower end of the motor base 242 is fixedly connected with an upper seat 251, the output end of the servo motor 241 is connected with a small pulley 243, the upper end of the upper seat 251 is provided with a large pulley 244, the large pulley 244 is located on one side of the small pulley 243, the large pulley 244 and the small pulley 243 are connected through a synchronous belt 245, the large pulley 244 is installed on a rotating sleeve 246 and drives the rotating sleeve 246 to rotate, the rotating sleeve 246 is fixedly installed with a screw rod nut 247, and the screw rod nut 247 is rotatably installed on the screw rod 21. The servo motor 241 drives the small pulley 243 to rotate, the small pulley 243 drives the large pulley 244 to rotate through the synchronous belt 245, and the large pulley 244 drives the rotating sleeve 246 and the screw rod nut 247 to rotate, so that the screw rod 21 moves up and down.

[0035] The upper end of the screw rod 21 is fixedly connected with a limiting plate 255, the limiting plate 255 is installed on limiting columns 256 on both sides, the lower end of the limiting plate 255 is provided with an adjusting sleeve 257, the inner cavity of the adjusting sleeve 257 is threadedly connected with a fixing sleeve 258, the fixing sleeve 258 is fixedly installed on the limiting columns 256, and the lower end of the limiting columns 256 is fixedly connected with the upper seat 251. The screw rod 21 moves up and down to drive the limiting plate 255 to move up and down along the limiting columns 256, when the limiting plate 255 moves down to contact the adjusting sleeve 257, the limiting plate 255 and the screw rod 21 cannot continue to move, and the screw rod 21 and the pressing head 22 can be achieved. Speed stop.

[0036] A group or multiple groups of heat insulation assemblies 23 are arranged above the pressing head 22, and the heat insulation assembly 23 comprises a heat insulation sleeve 231 sleeved on the outer wall of the screw rod 21, Figure 6 The outer side of the heat insulation sleeve 231 is sleeved with a connecting sleeve 232, the upper end of the connecting sleeve 232 is provided with an upper insulation pad 233, the lower end of the connecting sleeve 232 is provided with a lower insulation pad 234, the outer side of the connecting sleeve 232 is provided with a connector 235, and the connecting sleeve 232 and the connector 235 are threadedly connected. The screw rod 21 is further provided with a water flow channel 236, water flow inlets 237 and water flow outlets 238 are arranged at the upper end and the lower end of the water flow channel 236, cooling water enters the water flow channel 236 through the water flow inlets 237 and then flows out through the water flow outlets 238, the heat insulation assembly 23 plays a heat insulation and cooling role, prevents 500-degree high temperature in the constant-temperature furnace 1 from being transmitted to the driving mechanism, and causes damage to the driving mechanism, and the water flow channel 236 is arranged to cool the pressing head 22 through cooling water.

[0037] The pressure sensor 26 is arranged above the pressing head 22 and is fixedly installed on the lead screw 21.

[0038] The fixed column 252 is provided with a displacement sensor 271 on one side, the lower end of the displacement sensor 271 is connected with a pull plate 272, the lower end of the pull plate 272 is connected with a connecting rod 273, and the connecting rod 273 is connected with the heat insulation assembly 23.

[0039] The utility model specific implementation mode:

[0040] In use, five furnace doors 16 are opened respectively, and the materials to be pressed are placed on the five pressing seats 28 respectively, the heating coil 14 in the furnace cylinder 13 starts to heat, the high-temperature fan 19 is driven to rotate by the fan motor 10, and the high-temperature fan 19 blows out air, and the ventilation holes 18 of the furnace cylinder 13 form a circulation channel, the temperature is uniform, and a uniform temperature field environment is formed.

[0041] The servo motor 241 drives the small pulley 243 to rotate, the small pulley 243 drives the large pulley 244 to rotate through the synchronous belt 245, the large pulley 244 drives the rotating sleeve 246 and the lead screw nut 247 nut to rotate, the movement of the lead screw 21 is realized, when the movement speed of the lead screw 21 reaches 100mm / s, the lead screw 21 keeps 100mm / s speed and moves downward, until when the lower limit plate 255 contacts the adjusting sleeve 257, the pressing head 22 directly presses on the material to be pressed, and the speed stop of the lead screw 21 and the pressing head 22 can be realized.

[0042] It is obvious to those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0043] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A five-station uniform temperature 4T high-speed compressive strain testing machine, characterized in that: It includes a constant temperature furnace (1) and multiple servo presses (2). The lower part of the servo presses (2) extends into the constant temperature furnace (1). The servo presses (2) include a lead screw (21) and a drive mechanism for driving the lead screw (21) to move up and down. A pressure head (22) is provided at the lower end of the lead screw (21). One or more sets of heat insulation components (23) are provided above the pressure head (22). The constant temperature furnace (1) includes a base (11) and a furnace body (12) installed on the base (11). Multiple furnace chambers (13) are evenly distributed in the inner cavity of the furnace body (12). A heating coil (14) is embedded in each furnace chamber (13). A pressure seat (28) corresponding to the position of the pressure head (22) is fixedly installed in the furnace chamber (13).

2. The five-station uniform temperature 4T high-speed compressive strain testing machine according to claim 1, characterized in that: The drive mechanism includes a servo motor (241), which is mounted on a motor base (242). An upper base (251) is fixedly connected below the motor base (242). A small pulley (243) is connected to the output end of the servo motor (241). A large pulley (244) is provided above the upper base (251). The large pulley (244) is located on one side of the small pulley (243). The large pulley (244) and the small pulley (243) are connected by a synchronous belt (245). The large pulley (244) is mounted on a rotating sleeve (246) and drives the rotating sleeve (246) to rotate. A lead screw nut (247) is fixedly installed inside the rotating sleeve (246). The lead screw nut (247) is rotatably mounted on the lead screw (21).

3. The five-station uniform temperature 4T high-speed compressive strain testing machine according to claim 2, characterized in that: Fixed posts (252) are provided at the four corners of the upper seat (251). The upper end of the fixed post (252) is fixedly connected to the upper seat (251), and the lower end of the fixed post (252) is fixedly connected to the lower seat (253). A fixed post sleeve (254) is provided on the outer wall of the fixed post (252).

4. The five-station uniform temperature 4T high-speed compressive strain testing machine according to claim 1, characterized in that: The heat insulation component (23) includes a heat insulation sleeve (231) that is sleeved around the outer wall of the lead screw (21). A connecting sleeve (232) is sleeved around the outside of the heat insulation sleeve (231). An upper spacer (233) is provided above the connecting sleeve (232), and a lower spacer (234) is provided below the connecting sleeve (232). A connector (235) is provided on the outside of the connecting sleeve (232). The connecting sleeve (232) and the connector (235) are threaded together.

5. A five-station uniform temperature 4T high-speed compressive strain testing machine according to claim 4, characterized in that: The lead screw (21) is also provided with a water flow channel (236), and the upper and lower ends of the water flow channel (236) are provided with a water flow inlet (237) and a water flow outlet (238).

6. The five-station uniform temperature 4T high-speed compressive strain testing machine according to claim 1, characterized in that: A pressure sensor (26) is provided above the pressure head (22), and the pressure sensor (26) is fixedly installed on the lead screw (21).

7. A five-station uniform temperature 4T high-speed compressive strain testing machine according to claim 3, characterized in that: A displacement sensor (271) is provided on one side of the fixed column (252). The lower end of the displacement sensor (271) is connected to the pull plate (272). The lower end of the pull plate (272) is connected to the connecting rod (273). The connecting rod (273) is connected to the heat insulation component (23).

8. A five-station uniform temperature 4T high-speed compressive strain testing machine according to claim 3, characterized in that: The upper end of the lead screw (21) is fixedly connected to a limiting plate (255). The two sides of the limiting plate (255) are installed on the limiting posts (256). An adjusting sleeve (257) is provided below the limiting plate (255). A fixing sleeve (258) is threadedly connected to the inner cavity of the adjusting sleeve (257). The fixing sleeve (258) is fixedly installed on the limiting post (256). The lower end of the limiting post (256) is fixedly connected to the upper seat (251).

9. A five-station uniform temperature 4T high-speed compressive strain testing machine according to claim 3, characterized in that: A top cover (15) is provided on the top of the furnace body (12). The top cover (15) has a through hole for the servo press (2) to pass through. A furnace door (16) is provided on the outside of the furnace body (12). Heat insulation cotton (17) is provided between the furnace liner (13) and the furnace body (12). Each furnace liner (13) has a ventilation hole (18). Multiple high-temperature resistant fans (19) are provided in the inner cavity of the furnace body (12). The high-temperature resistant fans (19) are driven to rotate by a fan motor (10) located outside the furnace body (12).

10. A five-station uniform temperature 4T high-speed compressive strain testing machine according to claim 1, characterized in that: The pressure head (22) is equipped with a guide sleeve (29) that is compatible with the pressure base (28).

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