Testing device of graphite nodule counter

Abstract

The utility model provides a testing device for a graphite nodule counter. The testing device comprises a speed control mechanism, a sine mechanism, a retainer, a detection pipeline, a counter, a heating device, a vibration device, a first support frame and a second support frame, the detection pipeline is horizontally installed on the second supporting frame, the counter is arranged outside the detection pipeline in a sleeving mode, the heating device is arranged outside the detection pipeline in a sleeving mode, the heating device completely wraps the counter, and the vibration device is installed on the second supporting frame; the speed control mechanism is arranged on the first supporting frame, the holder is movably arranged in the detection pipeline, the speed control mechanism is connected with the holder through the sine mechanism, and the speed control mechanism drives the sine mechanism to drive the holder to reciprocate in the detection pipeline. The utility model has the advantages that various technical requirements can be well met, and the accuracy and the reliability of the detection performance of the counter can be well verified, so that the detection performance of the counter in the use process is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to special equipment technical field, in particular to a graphite ball counter's testing arrangement. BACKGROUND

[0002] High temperature gas cooled reactor is an advanced nuclear reactor technology, and its fuel loading and unloading system plays a vital role in ensuring the safe and efficient operation of the reactor. The counter is a core component in the spherical fuel loading and unloading system of the high temperature gas cooled reactor. In order to ensure the detection performance of the counter during use, a complete set of test device is urgently needed to verify the accuracy and reliability of the counter detection performance. The main technical requirements that the test device needs to meet include:

[0003] 1. The temperature of the detection section in the detection pipeline is adjustable, and the temperature range is normal temperature~200℃;

[0004] 2. It has the ability to pass different speed graphite balls through the counter, and the ball speed range is 0~5.0 m / s;

[0005] 3. It has the ability to vibrate the ball, and the vibration frequency of the detection pipeline is 10~100Hz;

[0006] 4. It has the ability to roll and pass the ball in both directions;

[0007] 5. It has the ability to pass no more than 5 graphite balls;

[0008] 6. The graphite ball can pass through the detection pipeline section continuously and in both directions, and the number of continuous ball passing is not less than 100000 times. Utility model content

[0009] The technical problem to be solved by the utility model is to provide a graphite ball counter test device that can verify the accuracy and reliability of the counter detection performance, thereby ensuring the detection performance of the counter during use.

[0010] The utility model is implemented as follows: a graphite ball counter test device, comprising a speed control mechanism, a sine mechanism, a retainer, a detection pipeline, a counter, a heating device, a vibration device, a first support frame and a second support frame;

[0011] The detection pipeline is horizontally installed on the second support frame, the counter is externally sleeved on the detection pipeline, the heating device is externally sleeved on the detection pipeline, the heating device completely covers the counter, and the vibration device is installed on the second support frame; The speed control mechanism is arranged on the first support frame, the retainer is movably arranged in the detection pipeline, the speed control mechanism is connected with the retainer through the sine mechanism, and the speed control mechanism drives the sine mechanism to drive the retainer to reciprocate in the detection pipeline.

[0012] Further, the sinusoidal mechanism comprises a rocker arm, a push rod, a sliding block, a guide limiting roller and a guide friction-reducing device.

[0013] The middle part of the push rod is formed with a long strip-shaped circular hole sliding groove along the vertical direction, and the sliding block is slidingly embedded in the long strip-shaped circular hole sliding groove; the large end of the rocker arm is connected with the output end of the speed control mechanism, and the small end of the rocker arm is connected with the sliding block; the first support frame is provided with a guide friction-reducing device on the side close to the detection pipeline, and is rotatably provided with two guide limiting rollers on the side away from the detection pipeline; one end of the push rod passes through the guide friction-reducing device and is connected with the retainer, and the other end of the push rod is movably limited between the two guide limiting rollers.

[0014] Further, the guide limiting roller is a cylindrical guide limiting roller, and the sliding block is a cylindrical sliding block; the guide friction-reducing device is made of GCr15 material.

[0015] Further, the retainer comprises a cylinder, a buffer pad, a compression screw and an end cover; the cylinder is movably arranged in the detection pipeline, one end of the cylinder close to the sinusoidal mechanism is closed, the other end of the cylinder away from the sinusoidal mechanism is open, and the closed end of the cylinder is hingedly connected with the sinusoidal mechanism through a hinge support; the upper and lower sides of the cylinder are symmetrically provided with long strip-shaped circular holes along the axis direction; the end cover is threadedly connected with the open end of the cylinder, and the compression screw passes through the end cover and is threadedly connected with the end cover; the end of the cylinder close to the sinusoidal mechanism and the insertion end of the compression screw are both provided with buffer pads.

[0016] Further, the total length of the cylinder is 348mm, and the inner diameter of the cylinder is 61mm; the length of the long strip-shaped circular hole is 250mm, and the width of the long strip-shaped circular hole is 35±1mm.

[0017] Further, the cylinder and the end cover are made of PEEK material.

[0018] Further, the heating device comprises a heating sleeve and a temperature control device; the temperature control device is arranged on the first support frame, and the temperature control device is connected with the heating sleeve.

[0019] The heating sleeve comprises a heating sleeve inner layer, a heating layer, a heat preservation layer and an insulation layer which are sequentially wrapped outside the middle section of the detection pipeline and the counter.

[0020] Further, the vibration device comprises a vibration motor and a vibration control device; the vibration control device is arranged on the first support frame, and the vibration control device is connected with the vibration motor; the vibration motor is arranged on the second support frame, and the vibration motor provides vibration with a frequency range of 10-200 Hz for the detection pipeline.

[0021] Further, the speed control mechanism comprises a driving motor, a shaft coupling and a speed reducer; the driving motor is fixed on the first support frame, the output end of the driving motor is connected with the speed reducer through the shaft coupling, and the output end of the speed reducer is connected with the sine mechanism.

[0022] Further, the driving motor adopts a YVF2-132S-4 type variable frequency speed regulation three-phase asynchronous motor, the shaft coupling adopts a GB / T5272-2002 plum blossom type shaft coupling, and the speed reducer adopts a ZDY type hard tooth surface cylindrical gear speed reducer, and the speed reduction ratio of the speed reducer is 3:1.

[0023] By adopting the technical scheme of the utility model, at least the following beneficial effects are obtained:

[0024] The sine mechanism is adopted to drive the retainer to realize reciprocating motion, the sine mechanism has good stability, can realize more accurate acceleration and speed control, and can accurately control the motion speed of the graphite ball in the range of 0-5.0 m / s. Through the reciprocating motion of the push rod of the sine mechanism, the forward and reverse continuous passing of the graphite ball through the detection section of the counter can be well simulated. The structure design of the retainer can control the number of graphite balls continuously passing through the detection pipeline, and can realize that 1-5 graphite balls roll through the counter in the detection section of the detection pipeline. Meanwhile, the cylinder and the end cover of the retainer adopt PEEK high-temperature-resistant polymer material, so that the influence of electromagnetic interference caused by the metal material on the detection signal of the graphite ball is avoided, the detection result is more accurate and reliable, and the PEEK material has high strength and high-temperature-resistant characteristics, can be used stably for a long time in an environment below 260 DEG C, the instantaneous use temperature can reach 300 DEG C, and the working requirement of 200 DEG C of the highest test environment temperature can be well met. The heating device can realize the adjustment of the heat output of the heating jacket through the output power of the temperature control device, and then realize the high-precision control of the environmental temperature adjustment and the detection temperature in the detection pipeline, and the adjustment requirement of the test environment temperature from normal temperature to 200 DEG C can be well met. The vibration device can change the rotating speed of the vibration motor through the output voltage frequency and amplitude of the vibration control device, and then control the vibration frequency output by the vibration motor, so that the detection pipeline can generate mechanical vibration with a frequency of 10-100 Hz, thereby simulating the mechanical vibration of the counter in the actual working environment. In summary, through the test device, the technical requirements can be well met, the accuracy and reliability of the detection performance of the counter can be well verified, and the detection performance of the counter in the use process is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0025] The utility model will be further explained in connection with the embodiments with reference to the drawings.

[0026] Figure 1 is the front view of a graphite ball counter test device of the utility model;

[0027] Figure 2 is the top view of a graphite ball counter test device of the utility model;

[0028] Figure 3 is the side view of a graphite ball counter test device of the utility model;

[0029] Figure 4 is the structure diagram of the sine mechanism in the utility model;

[0030] Figure 5 is the structure diagram of the retainer in the utility model;

[0031] Figure 6is a structural diagram of the heating device in the utility model;

[0032] Figure 7 is a structural diagram of the cylinder in the utility model;

[0033] Figure 8 is Figure 7 the sectional view along the direction A-A.

[0034] Mark explanation:

[0035] Test device 100;

[0036] Speed control mechanism 1, drive motor 11, shaft coupling 12, speed reducer 13;

[0037] Sine mechanism 2, rocker arm 21, push rod 22, long strip circular hole sliding groove 221, sliding block 23, guide limiting roller 24, guide anti-friction device 25;

[0038] Retainer 3, cylinder 31, long strip circular hole 311, buffer pad 32, compression screw 33, end cover 34, hinge support 35;

[0039] Detection pipeline 4;

[0040] Counter 5;

[0041] Heating device 6, heating jacket 61, heating jacket inner layer 611, heating layer 612, heat preservation layer 613, insulation layer 614, temperature control device 62;

[0042] Vibration motor 71, vibration control device 72;

[0043] First support frame 8;

[0044] Second support frame 9. Specific implementation

[0045] In order to make the utility model purposes, technical scheme and advantages more clearly, the following is combined with the drawings and examples, and the utility model is further detailed.The specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0046] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the utility model, it is understood that the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore the positional relationship described in the drawings is only used for exemplary illustration, and cannot be understood as a limitation on the patent, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0047] It should be noted that in this document, the terms "comprise", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, article or device. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of additional identical elements in the process, article or device comprising the element.

[0048] Please refer to Figures 1 to 8 The utility model discloses a graphite ball counter's testing device 100, the testing device 100 includes speed control mechanism 1, sine mechanism 2, retainer 3, detection pipeline 4, counter 5, heating device 6, vibrating device, first support frame 8 and second support frame 9.

[0049] The detection pipeline 4 is horizontally installed on the second support frame 9 to support the detection pipeline 4 by the second support frame 9, the counter 5 is sleeved on the outside of the detection pipeline 4, the heating device 6 is sleeved on the outside of the detection pipeline 4, the heating device 6 completely covers the counter 5, and the vibrating device is installed on the second support frame 9 to support the vibrating device by the second support frame 9. In the specific implementation, the counter 5 can be sleeved on the outside of the middle section of the detection pipeline 4, the heating device 6 can be sleeved on the outside of the middle section of the detection pipeline 4, and the heating device 6 can completely cover the counter 5 inside. During work, the heating device 6 can realize temperature adjustment of the test environment temperature from normal temperature to 200 DEG C, and the vibrating device can provide mechanical vibration with a vibration frequency of 10-100 Hz for the detection pipeline 4.

[0050] The speed control mechanism 1 is arranged on the first support frame 8 to support the speed control mechanism 1 by the first support frame 8, the holding frame 3 is movably arranged in the detection pipeline 4, the speed control mechanism 1 is connected with the holding frame 3 through the sine mechanism 2, and the holding frame 3 is driven to reciprocate in the detection pipeline 4 by the speed control mechanism 1; the utility model discloses a design utilizes the sine mechanism 2 to drive the holding frame 3 to reciprocate, because the sine mechanism 2 has good stability, therefore can realize more accurate acceleration and speed control, specifically can realize the motion speed of the graphite ball is controlled in 0~5.0 m / s range. In addition, the first support frame 8 and the second support frame 9 can be installed on a work platform (not shown) in the specific implementation of the utility model.

[0051] In some embodiments of the utility model, please refer to Figure 1 And Figure 4 As shown in the drawings, the sine mechanism 2 includes a rocker arm 21, a push rod 22, a sliding block 23, a guide limiting roller 24 and a guide friction reduction device 25.

[0052] The middle part of the push rod 22 is formed with a long strip-shaped circular hole sliding groove 221 along the vertical direction, the sliding block 23 is slidably embedded in the long strip-shaped circular hole sliding groove 221, and the sliding block 23 can move along the long strip-shaped circular hole sliding groove 221 during work; the large end of the rocker arm 21 is connected with the output end of the speed control mechanism 1, and the small end of the rocker arm 21 is connected with the sliding block 23, specifically the small end of the rocker arm 21 and the sliding block 23 can be connected through a cylindrical pin, so that when the speed control mechanism 1 drives the rocker arm 21 to rotate, the sliding block 23 connected with the rocker arm 21 can slide in the long strip-shaped circular hole sliding groove 221, thereby driving the push rod 22 to linearly reciprocate; the first support frame 8 is provided with the guide friction reduction device 25 on the side close to the detection pipeline 4, the first support frame 8 is rotatably provided with two guide limiting rollers 24 on the side away from the detection pipeline 4, one end of the push rod 22 penetrates through the guide friction reduction device 25 and is connected with the holding frame 3, specifically one end of the push rod 22 penetrates through the guide sleeve of the guide friction reduction device 25 and is connected with the holding frame 3, and the other end of the push rod 22 is movably limited between the two guide limiting rollers 24; wherein the guide friction reduction device 25 can guide the reciprocating movement of the push rod 22 on the one hand, and can reduce the friction between the push rod 22 on the other hand; the two guide limiting rollers 24 can guide and limit the reciprocating movement of the push rod 22, and the two guide limiting rollers 24 can rotate respectively, so as to reduce the friction between the guide limiting rollers 24 and the push rod 22, thereby ensuring that the push rod 22 can reliably and smoothly reciprocate.

[0053] As a specific embodiment of the utility model, the guiding and limiting roller 24 is a cylindrical guiding and limiting roller; the slider 23 is a cylindrical slider, and the gap between the cylindrical slider and the long strip-shaped round hole sliding groove 221 does not affect the movement accuracy of the sine mechanism 2 during work.

[0054] As a specific embodiment of the utility model, the guiding and reducing friction device 25 is made of GCr15 material, so as to better achieve the effect of reducing friction.

[0055] In some embodiments of the utility model, please refer to Figure 2 and Figure 3 As shown, the speed control mechanism 1 comprises a driving motor 11, a shaft coupling 12 and a speed reducer 13; the driving motor 11 is fixed on the first support frame 8, the output end of the driving motor 11 is connected with the speed reducer 13 through the shaft coupling 12, and the output end of the speed reducer 13 is connected with the sine mechanism 2.

[0056] When the speed control mechanism 1 and the sine mechanism 2 of the utility model work, the driving motor 11 transmits the output rotating speed to the speed reducer 13 through the shaft coupling 12, and outputs the required driving rotating speed after the speed reducer 13 reduces the rotating speed; the rocker arm 21 drives the slider 23 to slide in the long strip-shaped round hole sliding groove 221 under the action of the driving rotating speed, and further drives the push rod 22 to perform linear reciprocating motion, so the retainer 3 can perform reciprocating linear motion under the driving of the push rod 22, so as to drive the graphite balls in the retainer 3 to reciprocate through the detection section of the detection pipeline 4, so that the counter 5 can realize continuous ball detection.

[0057] As a specific embodiment of the utility model, the driving motor 11 is a YVF2-132S-4 type variable frequency speed regulation three-phase asynchronous motor, specifically a YVF2-132S-4 type variable frequency speed regulation three-phase asynchronous motor produced by Nanjing Yudong Motor Co., Ltd., the output rotating speed of the driving motor 11 is adjusted by a frequency converter, and the frequency converter is an A200H-5.5G type frequency converter produced by Yinsida; by using the above driving motor 11, the speed of the graphite balls through the detection section can be accurately controlled in the range of 0.01-5.0 m / s.

[0058] The shaft coupling 12 is a GB / T5272-2002 plum blossom type shaft coupling, and the plum blossom type shaft coupling has the advantages of high concentricity, long service life, high precision and stable transmission.

[0059] The reducer 13 adopts a ZDY type hard tooth surface cylindrical gear reducer, and the specific model can be ZDY100-1.25-I, and the reduction ratio of the reducer 13 is 3:1; in the specific implementation of the utility model, the output end of the reducer 13 is specifically connected with the large end of the rocker arm 21 of the sine mechanism 2 through a key.

[0060] In some embodiments of the utility model, please refer to Figure 5 、 Figure 7 and Figure 8 , the cage 3 includes a cylinder 31, a buffer pad 32, a compression screw 33 and an end cover 34; the cylinder 31 is movably arranged in the detection pipeline 4, one end of the cylinder 31 close to the sine mechanism 2 is closed, and the other end of the cylinder 31 away from the sine mechanism 2 is open, that is, the cylinder 31 is a hollow cylindrical structure with one end closed and one end open, and the closed end of the cylinder 31 is hinged to the sine mechanism 2 through a hinge support 35; specifically, the hinge support 35 can be arranged at the middle position of the end face of the closed end of the cylinder 31, and the hinge is used to hinge one end of the push rod 22 of the sine mechanism 2 to the hinge support 35; long strip-shaped circular holes 311 are symmetrically formed on the upper and lower sides of the cylinder 31 along the axial direction to facilitate the ball detection of the counter 5; the end cover 34 is threadedly connected with the open end of the cylinder 31; specifically, external threads can be arranged on the outer surface of the open end of the cylinder 31, and internal threads can be arranged on the inner wall of the end cover 34, so that the end cover 34 and the cylinder 31 are threadedly connected together by the external threads and the internal threads; the compression screw 33 passes through the end cover 34 and is threadedly connected with the end cover 34; specifically, an M20 threaded hole can be formed in the center position of the end face of the end cover 34, so that the compression screw 33 passes through and is threadedly connected with the end cover 34; during use, the penetration amount of the compression screw 33 in the cylinder 31 is adjusted by rotating, and the gap between the graphite balls and the compression screw 33 can be adjusted; the buffer pads 32 are arranged on the end portion close to the sine mechanism 2 and the insertion end of the compression screw 33 in the cylinder 31, so that the graphite balls can be isolated from the end portion close to the sine mechanism 2 and the insertion end of the compression screw 33 in the cylinder 31, and the buffer pads 32 can also absorb the impact kinetic energy caused by the movement of the graphite balls in the cage 3, thereby playing a buffering role. In order to adapt the buffer pad 32 to the internal structure of the cylinder 31, the buffer pad 32 specifically adopts a circular gasket.

[0061] As a specific embodiment of the utility model, the total length of the cylinder 31 is 348mm, and the inner diameter of the cylinder is 61mm, so that the cylinder 31 can accommodate five graphite balls and meet the requirement that one to five graphite balls roll through the counter 5; in the specific implementation of the utility model, the cylinder 31 can be designed according to the size requirement of the graphite balls.

[0062] As a specific embodiment of the utility model, the length of the long strip-shaped circular hole is 250 mm, and the width of the long strip-shaped circular hole is 35±1 mm.

[0063] As a specific embodiment of the utility model, the barrel 31 and the end cover 34 are made of PEEK material. PEEK (polyether ether ketone) is a high-temperature-resistant material with high strength and high-temperature resistance, which can be used stably for a long time in an environment below 260℃, and the instantaneous use temperature can reach 300℃.

[0064] In some embodiments of the utility model, please refer to Figure 6 As shown in the figure, the heating device 6 includes a heating jacket 61 and a temperature control device 62; the temperature control device 62 is arranged on the first support frame 8, and the temperature control device 62 is connected with the heating jacket 61 to control the heat output of the heating jacket 61 by the temperature control device 62; because the second support frame 9 will vibrate under the action of the vibration device, the temperature control device 62 is arranged on the first support frame 8, which can avoid the influence of vibration on the temperature control device 62; in the specific use process of the utility model, the heat output of the heating jacket 61 can be adjusted by adjusting the output power of the temperature control device 62, and then the high-precision control of the environmental temperature adjustment and detection temperature in the pipeline 4 is realized.

[0065] The heating jacket 61 includes a heating jacket inner layer 611, a heating layer 612, a heat preservation layer 613 and an insulation layer 614 which are sequentially wrapped outside the middle section of the detection pipeline 4 and the counter 5, wherein the heating jacket inner layer 611 is used for temperature conduction, the heating layer 612 is used for heating, the heat preservation layer 613 is used for heat preservation, and the insulation layer 614 is used for temperature insulation.

[0066] In some embodiments of the utility model, the vibration device includes a vibration motor 71 and a vibration control device 72; the vibration control device 72 is arranged on the first support frame 8, and the vibration control device 72 is connected with the vibration motor 71 to control the vibration frequency of the vibration motor 71 by the vibration control device 72; because the second support frame 9 will vibrate under the action of the vibration motor 71, the vibration control device 72 is arranged on the first support frame 8, which can avoid the influence of vibration on the vibration control device 72; during work, the output voltage frequency and amplitude of the vibration control device 72 can be adjusted to change the rotating speed of the vibration motor 71, and then the vibration frequency output by the vibration motor 71 is controlled.

[0067] The vibration motor 71 is arranged on the second support frame 9, and the vibration motor 71 provides the detection pipeline 4 with vibration with a frequency range of 10-200 Hz, so that the detection pipeline 4 can generate mechanical vibration with a frequency of 10-100 Hz to simulate the mechanical vibration of the counter 5 in the actual working environment.

[0068] The test device 100 can be used for continuous ball detection according to the following steps.

[0069] Step 1: a certain number (not more than 5) of graphite balls are loaded into the cylinder 31 of the retainer 3, the compression screw 33 of the retainer 3 is adjusted, and the graphite balls are ensured to freely roll in the detection pipeline 4.

[0070] Step 2: the output power of the temperature control device 62 is adjusted, the heating amount of the heating sleeve 61 is controlled, the detection pipeline 4 is heated by the heating sleeve 61, and the detection section of the counter 5 and the detection pipeline 4 reaches the set temperature.

[0071] Step 3: the output voltage frequency and amplitude of the vibration control device 72 are adjusted to change the rotating speed of the vibration motor 71, the vibration frequency output by the vibration motor 71 is controlled, the vibration motor 71 is started to make the detection pipeline 4 generate mechanical vibration with a certain frequency.

[0072] Step 4: the working frequency of the driving motor 11 of the speed control mechanism 1 is set, and the driving motor 11 is started.

[0073] Step 5: the driving motor 11 transmits the output rotating speed to the speed reducer 13 through the shaft coupling 12, drives the rocker arm 21 of the sine mechanism 2 to rotate after the speed reduction of the speed reducer 13, the sliding block 23 connected with the small end of the rocker arm 21 slides in the long strip-shaped circular hole sliding groove 221 of the push rod 22, thereby driving the push rod 22 to make reciprocating linear motion, and driving the retainer 3 connected with the push rod 22 to make reciprocating linear motion in the detection pipeline 4 at a set speed, so as to drag the graphite balls in the cylinder 31 of the retainer 3 to roll forward and backward in the detection section of the detection pipeline 4, and the counter 5 detects and counts the graphite balls.

[0074] Step 6: the process of steps 1-5 is repeated, and the continuous detection and counting of the test device 100 under different working conditions can be realized.

[0075] By adopting the technical scheme of the utility model, at least the following beneficial effects are achieved:

[0076] The sine mechanism 2 is used to drive the retainer 3 to realize reciprocating motion, the sine mechanism 2 has good stability, can realize more accurate acceleration and speed control, and can accurately control the motion speed of the graphite ball in the range of 0~5.0 m / s. Through the reciprocating motion of the push rod 22 of the sine mechanism 2, the forward and reverse continuous passing of the graphite ball through the detection section of the counter 5 can be well simulated. The structure design of the retainer 3 can control the number of graphite balls continuously passing through the detection pipeline 4, and can realize that 1~5 graphite balls roll through the counter 5 in the detection section of the detection pipeline 4. Meanwhile, the barrel 31 and the end cover 34 of the retainer 3 adopt PEEK high-temperature-resistant polymer materials, which can avoid the influence of electromagnetic interference caused by metal materials on the detection signal of the graphite ball, so that the detection result is more accurate and reliable. The PEEK material adopted by the barrel 31 and the end cover 34 has high strength and high temperature resistance, and can be used stably for a long time in an environment below 260 DEG C, and the instantaneous use temperature can reach 300 DEG C, which can well meet the working requirement of the highest test environment temperature of 200 DEG C. The heating device 6 can adjust the heating amount of the heating sleeve 61 by adjusting the output power of the temperature control device 62, and then realize the high-precision control of the environmental temperature adjustment and the detection temperature in the detection pipeline 4, which can well meet the adjustment requirement of the test environment temperature from normal temperature to 200 DEG C. The vibration device can change the rotating speed of the vibration motor 71 by adjusting the output voltage frequency and amplitude of the vibration control device 72, and then control the vibration frequency output by the vibration motor 71, so that the detection pipeline 4 can generate mechanical vibration with a frequency of 10~100 Hz, thereby simulating the mechanical vibration of the counter 5 in the actual working environment. In summary, by using the test device 100 of the utility model, the technical requirements can be well met, the accuracy and reliability of the detection performance of the counter 5 can be well verified, and the detection performance of the counter 5 in the use process is ensured.

[0077] Although the specific embodiments of the utility model are described above, those skilled in the art should understand that the specific examples described by us are only illustrative, not for the limitation of the scope of the utility model, and equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the utility model should be covered in the scope of protection of the claims of the utility model.

Claims

1. A test device for a graphite sphere counter, characterized by: The speed control mechanism, the sine mechanism, the retainer, the detection pipeline, the counter, the heating device, the vibration device, the first support frame and the second support frame are included. The detection pipeline is horizontally installed on the second support frame, the counter is sleeved outside the detection pipeline, the heating device is sleeved outside the detection pipeline, the heating device completely covers the counter, and the vibration device is installed on the second support frame.

2. A test device for a graphite sphere counter as claimed in claim 1, characterized in that: The speed control mechanism is arranged on the first support frame, the retainer is movably arranged in the detection pipeline, the speed control mechanism is connected with the retainer through the sine mechanism, and the speed control mechanism drives the sine mechanism to drive the retainer to reciprocate in the detection pipeline. The sine mechanism includes a rocker, a push rod, a sliding block, a guide limiting roller and a guide friction reducing device.

3. A test apparatus for a graphite sphere counter as claimed in claim 2, characterised in that: A long strip-shaped circular hole sliding groove is formed in the middle of the push rod along the vertical direction, and the sliding block is slidably embedded in the long strip-shaped circular hole sliding groove.

4. A test device for a graphite sphere counter as defined in claim 1, characterized in that: The large end of the rocker is connected with the output end of the speed control mechanism, and the small end of the rocker is connected with the sliding block.

5. A test apparatus for a graphite sphere counter as claimed in claim 4, characterised in that: The first support frame is provided with the guide friction reducing device on the side close to the detection pipeline, and the first support frame is rotatably provided with two guide limiting rollers on the side away from the detection pipeline.

6. A test apparatus for a graphite sphere counter as defined in claim 4, wherein: The guide limiting roller is a cylindrical guide limiting roller, and the sliding block is a cylindrical sliding block.

7. A test device for a graphite sphere counter as defined in claim 1, wherein: The guide friction reducing device is made of GCr15 material. The retainer includes a cylinder, a buffer pad, a compression screw and an end cover.

8. A test device for a graphite sphere counter as defined in claim 1, wherein: The cylinder is movably arranged in the detection pipeline, one end of the cylinder close to the sine mechanism is closed, the other end of the cylinder away from the sine mechanism is open, the closed end of the cylinder is hingedly connected with the sine mechanism through a hinge support, and long strip-shaped circular holes are symmetrically formed in the upper and lower sides of the cylinder along the axis direction. The end cover is threadedly connected with the open end of the cylinder, and the compression screw passes through the end cover and is threadedly connected with the end cover. The total length of the cylinder is 348mm, and the inner diameter of the cylinder is 61mm. The length of the long strip-shaped circular hole is 250mm, and the width of the long strip-shaped circular hole is 35±1mm. The cylinder and the end cover are made of PEEK material. The heating device includes a heating sleeve and a temperature control device. The temperature control device is arranged on the first support frame and connected with the heating sleeve. The heating sleeve includes a heating sleeve inner layer, a heating layer, a heat preservation layer and an insulation layer which are sequentially covered outside the middle section of the detection pipeline and the counter. The vibration device includes a vibration motor and a vibration control device. The vibration control device is arranged on the first support frame and connected with the vibration motor. The vibration motor is arranged on the second support frame and provides vibration for the detection pipeline with a frequency range of 10-200 Hz.

9. A test device for a graphite sphere counter as defined in claim 1, wherein: The speed control mechanism comprises a driving motor, a shaft coupling and a speed reducer; the driving motor is fixed on the first support frame, the output end of the driving motor is connected with the speed reducer through the shaft coupling, and the output end of the speed reducer is connected with the sinusoidal mechanism.

10. A test apparatus for a graphite sphere counter as claimed in claim 9, characterised in that: The driving motor is YVF2-132S-4 type variable frequency speed regulation three-phase asynchronous motor, the shaft coupling is GB / T5272-2002 plum blossom type shaft coupling, and the speed reducer is ZDY type hard tooth surface cylindrical gear reducer, and the speed reduction ratio of the speed reducer is 3:1.

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