Frittleness detection device

Abstract

A friability detection device belongs to the technical field of detection equipment and comprises a detector body, a second rotating shaft and a first rotating shaft are symmetrically and rotatably arranged on two sides of the detector body, a first gear is fixedly mounted on the first rotating shaft, and a second gear and a third gear are fixedly mounted on the second rotating shaft. A driving assembly is arranged in the inner cavity of the detector body in the horizontal direction and comprises a third rotating shaft and a micro motor, and the output end of the micro motor is connected with the third rotating shaft. According to the utility model, flexible adjustment of same-speed or variable-speed detection can be carried out according to experimental requirements, contrast experiments do not need to be carried out before and after the contrast experiments, friability detection of the contrast experiments can be realized at one time, experimental steps are saved, the application range and adaptability of equipment are expanded, the universality of the equipment is improved, and the same driving force is adopted; and the hubs on the two sides can synchronously rotate at the same speed or variable speed, so that the coordination of the unified effect of equipment can be better ensured while a power source is saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of detection equipment, specifically relates to a friability detection device. BACKGROUND

[0002] The production, transportation and other processes of tablets will inevitably be subjected to vibration or friction, which may cause the breakage of tablets and affect the application. The friability of tablets is an index reflecting the anti-vibration and wear resistance of tablets, which is generally measured by a tablet friability tester.

[0003] The related technology (announcement number CN209086069U) discloses a tablet friability detection device, which comprises a host computer, a wheel drum is installed on the left and right sides of the upper end of the host computer, a shock-absorbing base is installed at the lower end of the host computer, and a dustproof and moistureproof assembly is installed at the rear side of the host computer. In the utility model, the wheel drum body is provided with a medicine inlet end and a medicine outlet end, which is convenient to operate and greatly improves the work efficiency of the staff. The square dust cover can prevent dust from accumulating on the device, which protects the device and provides a clean and sanitary detection environment for the detection work. The moisture-proof frame is used for storing the drying agent, which can absorb the humid air in and around the wheel drum, reduce the error of the detection result, and ensure the accuracy of the detection. The shock-absorbing base can reduce the influence of external vibration on the device, further ensuring the accuracy of the detection result.

[0004] When detecting the friability of existing tablets, the tablets need to be placed in the transparent hubs on both sides of the equipment, and the friability of the tablets is observed and detected by rotating the hubs on both sides. However, the rotating speeds of the hubs on both sides of the existing friability detection equipment are the same, which makes it difficult to conduct comparative experiments at different rotating speeds. If different rotating speeds of friability detection are required, two experiments need to be conducted in sequence, which increases the experimental steps and limits the use of the equipment. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, such as the rotating speeds of the hubs on both sides of the existing friability detection equipment being the same, which makes it difficult to conduct comparative experiments at different rotating speeds, if different rotating speeds of friability detection are required, two experiments need to be conducted in sequence, which increases the experimental steps and limits the use of the equipment, the utility model provides a friability detection device, which can flexibly adjust the same speed or variable speed detection according to the experimental requirements. When conducting comparative experiments, it is not necessary to conduct front and rear comparative experiments, and the friability detection of the comparative experiments can be realized at one time, which saves the experimental steps, expands the use range and adaptability of the equipment, increases the universality of the equipment, and adopts the same driving force to realize the synchronous rotation of the hubs on both sides at the same speed or variable speed, which saves the power source and ensures the coordination of the unified action of the equipment. The specific technical scheme is as follows:

[0006] A friability detection device, comprising a detector main body, the detector main body is symmetrical on both sides and is rotationally provided with a second rotating shaft and a first rotating shaft, a first gear is fixedly installed on the first rotating shaft, a second gear and a third gear are fixedly installed on the second rotating shaft, a driving assembly is arranged in the cavity of the detector main body along the horizontal direction, the driving assembly comprises a third rotating shaft and a micro motor, the output end of the micro motor is connected with the third rotating shaft, a fourth gear, a fifth gear, a sixth gear and a seventh gear are fixedly installed on the third rotating shaft, and the fourth gear and the fifth gear are arranged above the first gear, and the sixth gear and the seventh gear are arranged above the second gear and the third gear;

[0007] Wherein, the driving assembly is divided into a first driving state and a second driving state;

[0008] In the first driving state, the fifth gear is in meshing connection with the first gear, and the seventh gear is in meshing connection with the second gear;

[0009] In the second driving state, the fourth gear is in meshing connection with the first gear, and the sixth gear is in meshing connection with the third gear.

[0010] In the above technical scheme, the diameters of the fourth gear, the fifth gear and the sixth gear are the same, the diameters of the first gear and the third gear are the same, the diameter of the third gear is greater than that of the second gear, and the diameter of the seventh gear is greater than that of the fifth gear.

[0011] In the above technical scheme, a through groove is formed through the detector main body, a moving arm is slidably embedded in the through groove, and the moving arm is rotationally connected with the third rotating shaft.

[0012] In the above technical scheme, a positioning assembly is arranged above the detector main body;

[0013] The positioning assembly comprises a fixed frame fixedly installed on the upper surface of the detector main body, two groups of positioning rods are arranged through the fixed frame, a positioning block is installed at the bottom end of each positioning rod, a first spring is sleeved on each positioning rod, and the two ends of the first spring are fixedly connected with the fixed frame and the positioning rod, a positioning groove is formed at the top end of the moving arm, and one of the positioning blocks is embedded in the inner cavity of the positioning groove.

[0014] In the above technical scheme, the ends of the first rotating shaft and the second rotating shaft respectively extend out of the side wall of the detector main body and are connected with a detection assembly;

[0015] The detection assembly comprises a hub, a scraper is mounted in the hub inner cavity, the scraper is arranged along the radial direction of the hub, a bolt is fixedly mounted in the middle of the hub, a cover plate is sleeved on the bolt, the end of the bolt extends outward from the cover plate, and a lock nut is threadedly sleeved on the outer end of the cover plate.

[0016] In the technical scheme, the first rotating shaft and the second rotating shaft are provided with locking units;

[0017] The locking units comprise a plurality of insertion holes respectively formed in the first rotating shaft and the second rotating shaft, the insertion holes are arranged at equal intervals in the circumferential direction, one end of an extension rod is mounted on the rear side wall of the detector main body, the other end of the extension rod is mounted with a connecting plate, a second spring is sleeved on the extension rod, the two ends of the second spring are fixedly connected with the extension rod and the connecting plate respectively, and insertion rods are perpendicularly mounted on the two ends of the connecting plate respectively, and the insertion rods are slidably embedded in the inner cavities of the insertion holes.

[0018] In the technical scheme, the side, away from the detector main body, of the connecting plate is mounted with a handle.

[0019] Compared with the prior art, the brittle fracture detection device has the beneficial effects that:

[0020] I. The rotational speeds of the wheel hubs on both sides of the existing brittle fracture detection equipment are the same, and it is difficult to perform comparative experiments of different rotational speeds. If brittle fracture detection of different rotational speeds is required, two experiments need to be performed in sequence, which increases the experimental steps and limits the use of the equipment. The seventh gear and the second gear can be engaged, and the sixth gear and the third gear can be engaged, so that the second rotating shaft and the first rotating shaft can be rotated at different speeds and the same speed, i.e., the left and right wheel hubs and the cover plates can be rotated at the same speed or at variable speeds. The same rotational speed of the tablets on both sides can be flexibly detected, or comparative experiments of different rotational speeds can be performed. The detection equipment can flexibly adjust the same speed or variable speed detection according to the experimental requirements. The comparative experiments do not need to be performed in sequence, and the brittle fracture detection of the comparative experiments can be performed at one time, which saves experimental steps, expands the use range and adaptability of the equipment, and increases the versatility of the equipment.

[0021] II. The micro motor, the third rotating shaft, the fourth gear, the fifth gear, the sixth gear and the seventh gear can drive the first rotating shaft and the second rotating shaft to rotate synchronously, i.e., the same driving force can be used to drive the first rotating shaft and the second rotating shaft to rotate synchronously. When the first rotating shaft and the second rotating shaft rotate at different speeds, the same driving force can still be used for driving. The same driving force can be used to drive the left and right wheel hubs to rotate at the same speed or at variable speeds, which saves the power source and ensures the coordination of the equipment.

[0022] Third, the utility model discloses through setting the positioning block, fixed frame, positioning rod, first spring can the mobile arm after moving position is positioned to guarantee the third rotating shaft, micro motor, fourth gear, fifth gear, sixth gear, seventh gear after moving keep stable, guarantee the stability and the meshing degree when the meshing connection of each position in succession.

[0023] Fourth, the utility model discloses through connecting plate, telescopic link, plug-in rod and bush, can the first rotating shaft and second rotating shaft of both sides are positioned, guarantee when speed regulation, the first rotating shaft and second rotating shaft of both sides can guarantee stable, and further guarantee that the first gear, second gear, third gear keep position stable, guarantee that fourth gear, fifth gear, sixth gear, seventh gear can accurately complete the follow-up meshing when moving, avoid the situation that the first gear, second gear, third gear rotate and can not carry out follow-up meshing during the adjustment process.

[0024] Summarizing, the utility model can carry out the flexible adjustment of same speed or variable speed detection according to the experimental demand, need not carry out contrast experiment before and after when comparing experiment, can realize the friability detection of contrast experiment one time, save experiment step more, expand equipment use range and adaptability, increase the versatility of equipment, and adopt same driving force, can realize the synchronous rotation of both sides wheel hub with same speed or variable speed, save power source simultaneously, can guarantee the coordination of equipment unified action more, in addition, can guarantee that the first gear, second gear, third gear position keep stable during the speed regulation, avoid the situation that the first gear, second gear, third gear rotate and can not carry out follow-up meshing during the adjustment process. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the structure schematic diagram of the utility model detection appearance main part;

[0026] Figure 2 It is Figure 1 The enlarged view of A of

[0027] Figure 3 It is the structure schematic diagram of the utility model wheel hub;

[0028] Figure 4 It is the rear view structure schematic diagram of the utility model connecting plate;

[0029] Figure 5 It is the rear view structure schematic diagram of the utility model plug-in rod;

[0030] Figure 6 It is the rear view structure schematic diagram of the utility model third rotating shaft;

[0031] Figures 1 to 6The utility model relates to a kind of brittleness detection devices, including detector main body 1, detector main body 1 both sides symmetry and rotationally arranged second shaft 4 and first shaft 2, first shaft 2 is fixedly installed with first gear 3, second shaft 4 is fixedly installed with second gear 5 and third gear 6, driving assembly is arranged in the cavity of detector main body 1 along horizontal direction, driving assembly includes third shaft 7 and micro motor 8, micro motor 8 output end is connected with third shaft 7, fourth gear 9, fifth gear 10, sixth gear 11, seventh gear 12 are fixedly installed on third shaft 7, and fourth gear 9 and fifth gear 10 are arranged above first gear 3, sixth gear 11 and seventh gear 12 are arranged above second gear 5 and third gear 6;Wherein, driving assembly is divided into first driving state and second driving state;In first driving state, fifth gear 10 is engaged with first gear 3, seventh gear 12 is engaged with second gear 5, first shaft 2 and second shaft 4 can rotate at different speeds under the same driving force at this time;In second driving state, fourth gear 9 is engaged with first gear 3, sixth gear 11 is engaged with third gear 6, first shaft 2 and second shaft 4 can rotate at the same speed under the same driving force at this time;The diameter of fourth gear 9, fifth gear 10, sixth gear 11 is same, the diameter of first gear 3 and third gear 6 is same, the diameter of third gear 6 is greater than the diameter of second gear 5, the diameter of seventh gear 12 is greater than the diameter of fifth gear 10; DETAILED DESCRIPTION

[0032] The specific implementation cases and accompanying drawings are combined below Figures 1 to 6 The utility model is further described, but the utility model is not limited to these embodiments.

[0033] Referring to Figures 1 to 6 As shown in the drawings, a brittleness detection device includes a detector main body 1, the detector main body 1 is symmetrically provided with a second shaft 4 and a first shaft 2 on both sides and is rotationally arranged, a first gear 3 is fixedly installed on the first shaft 2, a second gear 5 and a third gear 6 are fixedly installed on the second shaft 4, a driving assembly is arranged in the cavity of the detector main body 1 along the horizontal direction, the driving assembly includes a third shaft 7 and a micro motor 8, the output end of the micro motor 8 is connected with the third shaft 7, a fourth gear 9, a fifth gear 10, a sixth gear 11 and a seventh gear 12 are fixedly installed on the third shaft 7, and the fourth gear 9 and the fifth gear 10 are arranged above the first gear 3, the sixth gear 11 and the seventh gear 12 are arranged above the second gear 5 and the third gear 6;Wherein, the driving assembly is divided into a first driving state and a second driving state;In the first driving state, the fifth gear 10 is engaged with the first gear 3, the seventh gear 12 is engaged with the second gear 5, the first shaft 2 and the second shaft 4 can rotate at different speeds under the same driving force at this time;In the second driving state, the fourth gear 9 is engaged with the first gear 3, the sixth gear 11 is engaged with the third gear 6, the first shaft 2 and the second shaft 4 can rotate at the same speed under the same driving force at this time;The diameter of the fourth gear 9, the fifth gear 10 and the sixth gear 11 is same, the diameter of the first gear 3 and the third gear 6 is same, the diameter of the third gear 6 is greater than the diameter of the second gear 5, the diameter of the seventh gear 12 is greater than the diameter of the fifth gear 10;

[0034] The third rotating shaft 7, the micro motor 8, the fourth gear 9, the fifth gear 10, the sixth gear 11 and the seventh gear 12 are driven to rotate synchronously by the opened micro motor 8, since the fifth gear 10 is connected with the first gear 3, the seventh gear 12 is connected with the second gear 5, the diameter of the seventh gear 12 is larger than that of the fifth gear 10, the diameter of the first gear 3 is the same as that of the third gear 6, and the diameter of the third gear 6 is larger than that of the second gear 5, so that the fifth gear 10 and the seventh gear 12 rotating synchronously will respectively drive the first gear 3 and the second gear 5 to rotate at different speeds, thereby realizing the variable speed rotation of the first rotating shaft 2 and the second rotating shaft 4, that is, the synchronous performance of the variable speed friability contrast experiment of the two groups of tablets; when the movement of the third rotating shaft 7 drives the fourth gear 9 to mesh with the first gear 3 and the sixth gear 11 to mesh with the third gear 6, since the fourth gear 9, the fifth gear 10 and the sixth gear 11 have the same diameter, and the first gear 3 and the third gear 6 have the same diameter, when the fourth gear 9 and the sixth gear 11 are driven to rotate by the rotating third rotating shaft 7, the first gear 3 and the third gear 6 can rotate synchronously and at the same speed, that is, the second rotating shaft 4 and the first rotating shaft 2 rotate at the same speed, and the synchronous and same speed rotation experiment of the left and right groups of the hub 21, the scraper 22 and the cover plate 23 is realized.

[0035] Referring mainly to Figure 2 As shown in the figure, the detection instrument main body 1 is provided with a through groove 15, and a movable arm 14 is slidably embedded in the through groove 15, and the movable arm 14 is rotatably connected with the third rotating shaft 7 through a bearing. When the movable arm 14 is driven to translate along the through groove 15, the third rotating shaft 7, the micro motor 8, the fourth gear 9, the fifth gear 10, the sixth gear 11 and the seventh gear 12 can be driven to move horizontally synchronously, thereby realizing the adjustment of the positions of the gears on the third rotating shaft 7.

[0036] Referring mainly to Figure 1 and Figure 2 As shown in the figure, the detection instrument main body 1 is provided with a positioning assembly; the positioning assembly comprises a fixed frame 18 fixedly installed on the upper surface of the detection instrument main body 1, two groups of positioning rods 19 are provided through the fixed frame 18, a positioning block 17 is installed at the bottom end of each positioning rod 19, a first spring 20 is sleeved on each positioning rod 19, and the two ends of the first spring 20 are fixedly connected with the fixed frame 18 and the positioning rod 19, respectively, and a positioning groove 16 is formed at the top end of the movable arm 14; one of the positioning blocks 17 is embedded in the inner cavity of the positioning groove 16.

[0037] The two positioning rods 19 are pulled upward to make the bottom positioning blocks 17 disengage from the inner cavity of the positioning groove 16, the moving arm 14 is translated to make the moving arm 14 move horizontally along the cross bar 13, when the moving arm 14 corresponds to another positioning block 17, the external force on the positioning rod 19 is removed, the positioning rod 19 moves downward under the elastic force of the first spring 20, the positioning block 17 at the bottom of the positioning rod 19 is embedded into the inner cavity of the positioning groove 16 after displacement, thereby limiting the translation of the moving arm 14.

[0038] Referring mainly to Figures 1 to 6 As shown, the ends of the first rotating shaft 2 and the second rotating shaft 4 extend out of the side wall of the detector main body 1 and are connected with detection assemblies, through which the friability of the tablets can be detected; the detection assembly comprises a hub 21, two hubs 21 are connected with the first rotating shaft 2 and the second rotating shaft 4 respectively, through the rotation of the first rotating shaft 2 and the second rotating shaft 4, the hub 21 can be driven to rotate respectively, a scraper 22 is installed in the inner cavity of the hub 21, the scraper 22 is arranged in an arc shape along the radius direction of the hub 21, through the rotating hub 21 and the scraper 22, the tablets in the hub 21 are driven to rotate under the pushing action of the scraper 22, the tablets fall from high to low during the rotation process, the detection of friability is realized, a bolt 24 is fixedly installed in the middle of the hub 21, a cover plate 23 is sleeved on the bolt 24, the end of the bolt 24 extends out of the cover plate 23 to the outside, a locking nut 25 is threadedly sleeved on the outer end of the cover plate 23, the locking nut 25 is rotated outward to make it disengage from the bolt 24, the cover plate 23 is disassembled from the bolt 24, the tablets to be detected are placed in the inner cavity of the hub 21, referring to the above steps, the cover plate 23 is placed on the outside of the hub 21 again, the locking nut 25 is screwed into the outer wall of the bolt 24, and the locking nut 25 tightly positions the cover plate 23 on the hub 21.

[0039] Referring mainly to Figure 4 and Figure 5As shown, the first rotating shaft 2 and the second rotating shaft 4 are provided with locking units; the locking units include a plurality of insertion holes 27 respectively formed on the first rotating shaft 2 and the second rotating shaft 4, the insertion holes 27 are arranged equidistantly in the circumferential direction, one end of an extension rod 29 is installed on the rear wall of the detector main body 1, the other end of the extension rod 29 is installed with a connecting plate 28, a second spring 30 is sleeved on the extension rod 29, the two ends of the second spring 30 are fixedly connected with the extension rod 29 and the connecting plate 28 respectively, the two ends of the connecting plate 28 are perpendicularly installed with insertion rods 26 respectively, and the insertion rods 26 are slidingly embedded in the inner cavities of the insertion holes 27; if it is necessary to realize the same speed rotating experiment on both sides of the equipment, the pad between the connecting plate 28 and the rear wall of the detector main body 1 is removed, and the connecting plate 28 and the insertion rod 26 are synchronously moved to the front side under the elastic force of the second spring 30 until the insertion rod 26 is inserted into the inner cavity of the corresponding insertion hole 27, so that the second rotating shaft 4 and the first rotating shaft 2 are stable at this time and cannot rotate by themselves.

[0040] In addition, the side of the connecting plate 28 away from the detector main body 1 is installed with a handle 31, and by pulling the handle 31 outward, the connecting plate 28 can be moved away from the rear wall of the detector main body 1 to make the insertion rod 26 move out of the inner cavity of the corresponding insertion rod 26 at this time.

[0041] When the speed of the equipment is adjusted, the insertion rod 26 is inserted into the inner cavity of the corresponding insertion hole 27 to ensure that the first rotating shaft 2 and the second rotating shaft 4 are stable and cannot rotate during adjustment, so as to ensure that the gears on the two can remain stable and prevent subsequent meshing with other gears; when the friability experiment is needed after adjustment, the pad is placed between the connecting plate 28 and the rear wall of the detector main body 1 to make the insertion rod 26 move out of the inner cavity of the corresponding insertion hole 27 at this time, so as to ensure that the rotation of the first rotating shaft 2 and the second rotating shaft 4 will not be limited by the insertion rod 26;

[0042] The fourth gear 9, the fifth gear 10 and the sixth gear 11 have the same diameter, the first gear 3 and the third gear 6 have the same diameter, the diameter of the third gear 6 is greater than that of the second gear 5, and the diameter of the seventh gear 12 is greater than that of the fifth gear 10;

[0043] It is worth mentioning that in this application, the micro motor 8 adopts the commonly used self-locking motor on the market, which can lock the output end. When it stops running, the output end can be self-locked and will not rotate under external force. The micro motor 8 is a commonly used forward and reverse motor on the market, and its output end can rotate forward or reverse according to the use requirement. It can meet the above use requirement; the hub 21, the scraper 22 and the cover plate 23 are all commonly used components for friability detection on the market. They are all made of transparent acrylic material, which provides convenience for real-time transparent observation of the detection situation during detection; the telescopic rod 29 is a commonly used telescopic rod on the market, which is composed of two mutually sliding sleeve rods. Under the action of external force, the total length of the telescopic rod 29 can be changed. The above existing components are not described in detail and limited in type.

[0044] The working principle of the friability detection device of the embodiment is as follows:

[0045] Rotate the locking nut 25 outward to make it disengage from the bolt 24, and then disassemble the cover plate 23 from the bolt 24. Put the tablets to be detected into the inner cavity of the hub 21, refer to the above steps, and then reattach the cover plate 23 to the outer side of the hub 21, and screw the locking nut 25 into the outer wall of the bolt 24 to tightly position the cover plate 23 on the hub 21.

[0046] The pad with thickness is used to pad between the connecting plate 28 and the rear wall of the detector main body 1, so that the insertion rod 26 is separated from the inner cavity of the corresponding insertion hole 27. The third shaft 7, the micro motor 8, the fourth gear 9, the fifth gear 10, the sixth gear 11 and the seventh gear 12 are driven by the opened micro motor 8 to rotate synchronously. Since the fifth gear 10 is connected with the first gear 3, the seventh gear 12 is connected with the second gear 5, the diameter of the seventh gear 12 is greater than that of the fifth gear 10, the diameters of the first gear 3 and the third gear 6 are the same, and the diameter of the third gear 6 is greater than that of the second gear 5, the synchronous rotation of the fifth gear 10 and the seventh gear 12 will respectively drive the first gear 3 and the second gear 5 to rotate at different speeds, so as to realize the variable speed rotation of the first shaft 2 and the second shaft 4, i.e. the variable speed rotation of the two groups of hubs 21, and the synchronous performance of the variable speed friability contrast experiment of the two groups of tablets.

[0047] If the same speed rotating experiment on both sides of the device needs to be realized, the cushion between the connecting plate 28 and the rear wall of the detector main body 1 is removed, the connecting plate 28 and the plug rod 26 are promoted to move to the front side synchronously under the elastic force of the second spring 30, until the plug rod 26 is inserted into the inner cavity of the corresponding insertion hole 27 at this time, thereby realizing the stability of the second rotating shaft 4 and the first rotating shaft 2 at this time, and the self-rotation cannot be carried out; the two groups of positioning rods 19 are pulled up to promote the bottom positioning block 17 to be separated from the inner cavity of the positioning groove 16, the translation moving arm 14 promotes the moving arm 14 to move horizontally along the cross bar 13, until the moving arm 14 corresponds to another positioning block 17, the external force acting on the positioning rod 19 is removed, the positioning rod 19 moves downward under the elastic force of the first spring 20, and the positioning block 17 at the bottom of the positioning rod 19 is embedded into the inner cavity of the positioning groove 16 after displacement, thereby realizing the limiting of the translation of the moving arm 14; the third rotating shaft 7 in the translation process promotes the fourth gear 9 to mesh with the first gear 3, and the sixth gear 11 meshes with the third gear 6, since the fourth gear 9, the fifth gear 10 and the sixth gear 11 have the same diameter, and the first gear 3 and the third gear 6 have the same diameter, therefore, when the fourth gear 9 and the sixth gear 11 are rotated by the subsequent rotating third rotating shaft 7, the synchronous and same speed rotation of the first gear 3 and the third gear 6 can be realized, that is, the same speed rotation of the second rotating shaft 4 and the first rotating shaft 2 is realized, and the synchronous and same speed rotating experiment of the left and right groups of hub 21, the scraper 22 and the cover plate 23 is realized;

[0048] The device can flexibly adjust the same speed or variable speed detection according to experimental requirements, and can realize the friability detection of the contrast experiment at one time without needing to carry out the contrast experiment before and after, save the experimental steps, expand the use range and adaptability of the device, increase the versatility of the device, adopt the same driving force, realize the synchronous rotation of the hub on both sides at the same speed or variable speed, save the power source, and further ensure the coordination of the unified action of the device, and in addition, the positions of the first gear 3, the second gear 5 and the third gear 6 can be kept stable during the speed regulation, and the rotation of the first gear 3, the second gear 5 and the third gear 6 during the adjustment process is avoided, so that the subsequent meshing cannot be carried out.

[0049] The preferred embodiments of the device are described above, but are not used to limit the device, and various changes and modifications can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the device shall be included in the protection range of the device.

Claims

1. A friability detection device comprising a detector body (1), characterized in that: The detection instrument body (1) is symmetrical and rotatably provided with a second rotating shaft (4) and a first rotating shaft (2) on both sides, the first rotating shaft (2) is fixedly provided with a first gear (3), the second rotating shaft (4) is fixedly provided with a second gear (5) and a third gear (6), the inner cavity of the detection instrument body (1) is provided with a driving assembly in the horizontal direction, the driving assembly comprises a third rotating shaft (7) and a micro motor (8), the output end of the micro motor (8) is connected with the third rotating shaft (7), the third rotating shaft (7) is fixedly provided with a fourth gear (9), a fifth gear (10), a sixth gear (11) and a seventh gear (12), and the fourth gear (9) and the fifth gear (10) are arranged above the first gear (3), and the sixth gear (11) and the seventh gear (12) are arranged above the second gear (5) and the third gear (6); Wherein, the driving assembly is divided into a first driving state and a second driving state; In the first driving state, the fifth gear (10) is connected with the first gear (3) in meshing, and the seventh gear (12) is connected with the second gear (5) in meshing; In the second driving state, the fourth gear (9) is connected with the first gear (3) in meshing, and the sixth gear (11) is connected with the third gear (6) in meshing.

2. A friability detection device according to claim 1, characterised in that: The fourth gear (9), the fifth gear (10) and the sixth gear (11) have the same diameter, the first gear (3) and the third gear (6) have the same diameter, the diameter of the third gear (6) is greater than that of the second gear (5), and the diameter of the seventh gear (12) is greater than that of the fifth gear (10).

3. A friability detection device according to claim 1, characterised in that: A through groove (15) is formed through the detection instrument body (1), a moving arm (14) is slidably embedded in the through groove (15), and the moving arm (14) is rotatably connected with the third rotating shaft (7).

4. A friability detection device according to claim 3, characterised in that: A positioning assembly is arranged above the detection instrument body (1); The positioning assembly comprises a fixed frame (18) fixedly installed on the upper surface of the detection instrument body (1), two groups of positioning rods (19) are arranged through the fixed frame (18), a positioning block (17) is installed at the bottom of each positioning rod (19), a first spring (20) is sleeved on each positioning rod (19), and the two ends of the first spring (20) are fixedly connected with the fixed frame (18) and the positioning rod (19), respectively, a positioning groove (16) is formed at the top of the moving arm (14), and one of the positioning blocks (17) is embedded in the inner cavity of the positioning groove (16).

5. A friability detection device according to claim 1, wherein: The ends of the first rotating shaft (2) and the second rotating shaft (4) extend out of the side wall of the detection instrument body (1) and are connected with a detection assembly. The detection assembly comprises a hub (21), a scraper (22) is installed in the inner cavity of the hub (21), the scraper (22) is arranged along the radial direction of the hub (21), a bolt (24) is fixedly installed in the middle of the hub (21), a cover plate (23) is sleeved on the bolt (24), the end of the bolt (24) extends outward from the cover plate (23), and a lock nut (25) is threadedly sleeved on the outer end of the cover plate (23).

6. A friability detection device according to claim 1, wherein: The first rotating shaft (2) and the second rotating shaft (4) are provided with locking units; The locking units comprise a plurality of insertion holes (27) respectively formed in the first rotating shaft (2) and the second rotating shaft (4), the insertion holes (27) are arranged at equal intervals in the circumferential direction, one end of an extension rod (29) is installed on the rear wall of the detector main body (1), the other end of the extension rod (29) is installed with a connecting plate (28), a second spring (30) is sleeved on the extension rod (29), the two ends of the second spring (30) are fixedly connected with the extension rod (29) and the connecting plate (28) respectively, and the two ends of the connecting plate (28) are perpendicularly installed with insertion rods (26), and the insertion rods (26) are slidably embedded in the inner cavities of the insertion holes (27).

7. A friability detection device according to claim 6, characterised in that: A handle (31) is installed on the side, away from the detector main body (1), of the connecting plate (28).

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