A ball separation device

Abstract

The present invention discloses a ball separation device, comprising: a separation cylinder; a roller, the roller is rotatably arranged in the separation cylinder, and the outer surface of the roller is provided with a V-shaped groove, the V-shaped groove extends in a spiral shape on the outer surface of the roller, and the groove walls on both sides of the V-shaped groove are smooth curved surfaces; a detection gauge plate, the detection gauge plate is arranged in the separation cylinder and fixedly connected to the cylinder wall of the separation cylinder; a waste collection funnel and a waste outlet pipe; a feed pipe and a whole ball outlet pipe; a driving assembly, which is used to drive the roller to rotate. The structural design of the ball separation device can effectively prevent the surface of the fuel ball from being damaged by collision with the fuel ball, does not generate vibration, and avoids the generation of debris.

Description

Technical Field

[0001] The present invention relates to the technical field of nuclear reactor equipment, and more particularly to a ball separation device. Background Art

[0002] The ball separator is an important component of the fuel loading and unloading equipment in the key system of the high-temperature gas-cooled reactor. Its function is to sort out the fragments and damaged fuel balls from the fuel balls unloaded from the core, so as to improve the transportation efficiency and transportation stability, and reduce the possibility of increased radioactivity of the primary coolant caused by component damage. Because the fuel loading and unloading system must realize continuous fuel circulation and loading and unloading without stopping the reactor, the effectiveness of the ball separator is crucial.

[0003] In the past, the roller structure of the ball crushing separation device was mostly to set only helical teeth on the roller or to embed redirecting teeth or other interferences on the helical teeth. For the structure with only helical teeth, most of them use straight-toothed helical racks, but because the fuel balls are graphite balls, collisions with straight teeth, redirecting teeth or interferences will cause the surface of the fuel balls to be scratched, produce debris, and cause vibration of the equipment. Moreover, the change in the movement direction of the fuel balls due to collision is uncontrollable, and it cannot be guaranteed that all the circumferential surfaces of the balls can be screened out by the spacing between the gauge plate and the roller, which greatly reduces the detection rate of unqualified balls. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a ball-breaking separation device, the structural design of which can effectively prevent collision with fuel balls and cause surface damage to the fuel balls, without generating vibration and avoiding the generation of debris.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A ball separation device, comprising:

[0007] Separation cylinder;

[0008] A roller, the roller is rotatably disposed in the separation cylinder, and a V-shaped groove is disposed on the outer surface of the roller, the V-shaped groove extends in a spiral shape on the outer surface of the roller, and the groove walls on both sides of the V-shaped groove are smooth curved surfaces;

[0009] A detection gauge plate, wherein the detection gauge plate is disposed in the separation cylinder and fixedly connected to the cylinder wall of the separation cylinder, and during the rotation of the roller, the whole ball placed in the V-shaped groove can always be in point contact with the detection gauge plate;

[0010] A waste collecting funnel and a waste outlet pipe, wherein the waste collecting funnel is arranged below the roller, and the waste outlet pipe is connected with the outlet of the waste collecting funnel;

[0011] A feed pipe and a whole ball outlet pipe, both of which are fixedly connected to the wall of the separation cylinder, and the outlet of the feed pipe is opposite to the feed end of the roller, and the whole ball outlet pipe is opposite to the discharge end of the roller;

[0012] The driving assembly is used for driving the roller to rotate.

[0013] Optionally, after the whole ball is placed in the V-shaped groove, the plane passing through the center of the whole ball in the V-shaped groove and the roller axis is the first plane, and the roller is cut along the first plane to obtain a cross section of the V-shaped groove, and the point of the cross section of the V-shaped groove closest to the roller axis is point A, and the contact points between the whole ball and the groove walls on both sides of the V-shaped groove are point B1 and point B2 respectively, the center of the whole ball is point O, and the straight line perpendicular to the roller axis and passing through point O is the first straight line, and the angle between the straight line OA and the first straight line is α, and the maximum value of the angle α is M;

[0014] From the inlet end to the outlet end of the V-shaped groove, the angle α changes gradually and periodically between M and -M; or, from the inlet end to the outlet end of the V-shaped groove, the angle α changes gradually between M and -M.

[0015] Optionally, wherein

[0016]

[0017] The surface passing through the entrance of the V-groove and perpendicular to the roller axis is the main shaft end surface, z is the distance between the center of the above-mentioned whole ball and the main shaft end surface; Z is the pitch of the V-groove; k is an integer; M is the maximum amplitude of α.

[0018] Optionally, the contact point between the detection gauge plate and the whole ball is point P, and the straight line OP is perpendicular to the axis of the roller;

[0019] When the roller is placed horizontally, the straight line OP is along the horizontal direction.

[0020] Optionally, assuming that the value of angle α remains unchanged, when the whole ball rolls along the V-shaped groove without relative sliding during the rotation of the roller, the intersection of its rolling axis and the spherical surface of the whole ball is point Q and point Q. 1 Points P and Q are on the same hemisphere, and line OP is perpendicular to line OQ.

[0021] Optionally, assuming that the value of angle α remains unchanged, the angle between the groove walls on both sides of the V-shaped groove is a right angle, and during the rotation of the roller, when the whole ball rolls along the V-shaped groove without relative sliding, the intersection points of its rolling axis and the spherical surface of the whole ball are points Q and Q. 1 Point P and point Q are located on the same hemisphere, and the angle between the straight line OQ and the straight line OA is β;

[0022]

[0023] Wherein, H is the distance between the center of the whole ball and the axis of the roller; r is the radius of the whole ball.

[0024] Optionally, assuming that the value of angle α remains unchanged, the angle between the groove walls on both sides of the V-shaped groove is a right angle, and during the rotation of the roller, when the whole ball rolls along the V-shaped groove without relative sliding, the intersection points of its rolling axis and the spherical surface of the whole ball are points Q and Q. 1 Point P and point Q are located on the same hemisphere, and the angle between the straight line OQ and the straight line OA is β;

[0025]

[0026] Wherein, H is the distance between the center of the whole ball and the axis of the roller; r is the radius of the whole ball.

[0027] Optionally, the coordinates of points A, B1 and B2 in cylindrical coordinates are as follows, wherein the cylindrical coordinates take the intersection of the surface passing through the entrance end of the V-groove and perpendicular to the roller axis and the roller axis as the origin, and take the roller axis as the reference axis;

[0028]

[0029]

[0030]

[0031] Among them, the surface passing through the entrance end of the V-groove and perpendicular to the roller axis is the main shaft end face, z is the distance between the center of the above-mentioned whole ball and the main shaft end face; H is the distance between the center of the above-mentioned whole ball and the roller axis; r is the radius of the whole ball; h1 is the distance between point B1 and the roller axis; h2 is the distance between point B2 and the roller axis.

[0032] Optionally, it also includes a baffle plate disposed in the separation cylinder and fixedly connected to the cylinder wall of the separation cylinder, the baffle plate is located above the roller, and during the rotation of the roller, the whole ball placed in the V-shaped groove can always be in point contact with the baffle plate.

[0033] Optionally, the end walls at both ends of the separation cylinder are shielding plates.

[0034] When the ball separation device provided by the invention is used, the driving component drives the roller to rotate, and the fuel ball to be tested moves to the V-groove at the feed end of the roller through the feed pipe. During the rotation of the roller, due to the effect of friction, the qualified fuel ball can roll in the V-groove and gradually translate as a whole from the feed end of the roller to the discharge end of the roller along the V-groove, and finally be discharged from the whole ball outlet pipe. It should be noted here that during the rotation of the roller, the qualified fuel ball translates as a whole from the feed end of the roller to the discharge end of the roller along a direction parallel to the axis of the roller, and the fuel ball continues to roll in the V-groove during the translation. When the fuel ball rolls in the V-groove, the distance between the center of the ball and the axis of the roller is a certain value, and the center of the ball only translates with the ball from the feed end to the discharge end. During the rotation of the roller, unqualified fuel balls or debris fall from the gap between the detection gauge plate and the roller, fall into the waste collection funnel, and are then discharged through the waste outlet pipe, and finally the unqualified fuel balls or debris are screened out.

[0035] In the above process, the ball rolls in the V-shaped groove, and can maintain smooth operation without vibration and impact during transportation from the inlet to the outlet. Compared with the structure with protruding redirecting teeth or other interferences on the spiral track, the impact of redirecting teeth or interferences on the ball is avoided, which greatly reduces the damage to the ball, reduces the debris generated by the collision and reduces the vibration of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 A cross-sectional view of a ball separation device provided in an embodiment of the present invention;

[0038] Figure 2 for Figure 1 The positional relationship between the center ball and the V-shaped groove;

[0039] Figure 3 yes Figure 1 Schematic diagram of the contact point between the fuel ball rotation axis and the detection gauge plate.

[0040] exist Figure 1-3 middle:

[0041] 1-spindle, 2-locking nut, 3-bearing, 4-shielding plate, 5-baffle, 6-feeding pipe, 7-detection gauge plate, 8-whole ball, 9-waste collecting funnel, 10-waste outlet pipe, 11-roller, 12-whole ball outlet pipe, 13-separation cylinder. DETAILED DESCRIPTION

[0042] As described in the prior art, in the past, the roller structure of the ball crushing separation device mostly only has spiral teeth on the roller or has redirecting teeth or other interference objects embedded on the spiral teeth. For the structure with only spiral teeth, the structure mostly uses a straight-tooth spiral rack. During the propulsion process from the ball inlet to the ball outlet, the fuel ball will roll in the track groove formed between the spiral rack and the detection gauge plate 7. The rolling direction is the spherical axis direction parallel to the rotation axis around the fuel ball. With respect to the detection gauge plate 7, only the circumference of the ball perpendicular to the gauge plate can be detected, and defects in other directions of the ball will be missed. In order to solve this problem, some people set a spiral rack or embed redirecting teeth or other interference objects on the spiral rack, such as the development of a 10MW high-temperature gas-cooled reactor fuel element loading and unloading system in Volume 37, Issue 4 of Atomic Energy Science and Technology. With this structure, the fuel ball will roll in the spiral track during its advancement from the ball inlet to the ball outlet. Since redirecting teeth or other interferences are provided in the track groove, the rolling direction of the fuel ball will change after colliding with the interferences. With respect to the detection gauge plate 7, spherical surfaces in different circumferential directions can be detected, thereby improving the accuracy of sorting. However, because the fuel ball is a graphite ball, collision with redirecting teeth or interferences will cause scratches on the surface of the fuel ball, resulting in debris, and will also cause vibration of the equipment. Moreover, the change in the movement direction of the fuel ball caused by the collision is uncontrollable, and it cannot be guaranteed that all circumferential surfaces of the sphere can be screened out by the spacing between the gauge plate and the roller 11, which greatly reduces the detection rate of unqualified balls.

[0043] Based on this, the object of the present invention is to provide a ball-breaking separation device, the structural design of which can effectively prevent collision with fuel balls and cause surface damage to the fuel balls, without generating vibration and avoiding the generation of debris.

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left" and "right" indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0046] See also Figure 1-Figure 3 The ball separation device provided in the embodiment of the present invention is mainly used to sort out the fragments of fuel balls and damaged fuel balls. Of course, the ball separation device can also be used to sort out broken balls or fragments of other materials, and can be applied to any technical field, which is not limited here. The following embodiments are described by taking fuel balls as an example.

[0047] The above-mentioned ball crushing separation device includes a separation cylinder 13, a roller 11, a detection gauge plate 7, a waste collection funnel 9, a waste outlet pipe 10, a feed pipe 6, a whole ball outlet pipe 12 and a driving component.

[0048] The roller 11 is rotatably arranged in the separation drum 13, that is, the roller 11 and the separation drum 13 can rotate relative to each other. The outer surface of the roller 11 is provided with a V-shaped groove, and the V-shaped groove extends in a spiral shape on the outer surface of the roller 11. The V-shaped groove is cut along a plane perpendicular to the axis of the roller 11, and the cross section obtained is V-shaped. The length direction of the V-shaped groove extends along the spiral line, and the axis of the spiral line coincides with the axis of the roller 11. The V-shaped groove is spiral as a whole and extends around the outer surface of the roller 11.

[0049] The groove walls on both sides of the V-shaped groove are smooth curved surfaces. After the whole ball 8 is placed in the V-shaped groove, the spherical surface of the whole ball 8 and the groove walls on both sides are in point contact.

[0050] The detection gauge plate 7 is arranged in the separation cylinder 13, and the detection gauge plate 7 is fixedly connected to the cylinder wall of the separation cylinder 13. The length direction of the detection gauge plate 7 is parallel to the axial direction of the roller 11. During the rotation of the roller 11, the whole ball 8 placed in the V-shaped groove can always be in point contact with the detection gauge plate 7. During the rotation of the roller 11, unqualified fuel balls or debris fall from the gap between the detection gauge plate 7 and the roller 11. During the rotation of the roller 11, qualified fuel balls can roll in the V-shaped groove and gradually move along the V-shaped groove from the feed end of the roller 11 to the discharge end of the roller 11.

[0051] The distance between the detection gauge plate 7 and the axis of the roller 11 or the distance between the detection gauge plate 7 and the surface of the roller 11 can be set according to actual needs. The detection gauge plate 7 can be fixedly connected to one end wall of the separation cylinder 13, which is not limited here.

[0052] The waste collection funnel 9 is located in the separation cylinder 13, and the waste collection funnel 9 is arranged below the roller 11, and unqualified fuel balls or debris fall from the gap between the detection gauge plate 7 and the roller 11 to the waste collection funnel 9. The waste outlet pipe 10 is connected to the outlet of the waste collection funnel 9, and the unqualified fuel balls or debris falling into the waste collection funnel 9 are then discharged through the waste outlet pipe 10. The waste outlet pipe 10 can pass through the wall of the separation cylinder 13, which is not limited here.

[0053] The feed pipe 6 and the whole ball outlet pipe 12 are both fixedly connected to the wall of the separation cylinder 13. The outlet of the feed pipe 6 is opposite to the feed end of the roller 11, and the whole ball outlet pipe 12 is opposite to the discharge end of the roller 11. The fuel balls entering from the feed pipe 6 directly enter the V-shaped groove at the feed end of the roller 11. Qualified fuel balls gradually move from the feed end of the roller 11 to the discharge end of the roller 11 along the V-shaped groove and are discharged from the whole ball outlet pipe 12.

[0054] The feed pipe 6 and the whole ball outlet pipe 12 may both penetrate the wall of the separation cylinder 13, which is not limited here.

[0055] The feed pipe 6 can be located above the roller 11, and the whole ball outlet pipe 12 can be located below the roller 11, so that the gravity of the fuel ball is used to make it fall into or leave the V-shaped groove. Of course, the feed pipe 6 and the whole ball outlet pipe 12 can also be set at other positions, which are not limited here.

[0056] The driving assembly is used to drive the roller 11 to rotate. The driving assembly can be a motor, a rotary cylinder, a worm gear assembly, etc., which are not limited here. Among them, the motor can be a servo motor or a stepper motor, which are not limited here.

[0057] When the ball separation device provided by the invention is used, the driving component drives the roller 11 to rotate, and the fuel ball to be tested moves to the V-shaped groove at the feed end of the roller 11 through the feed pipe 6. During the rotation of the roller 11, due to the effect of friction, the qualified fuel ball can roll in the V-shaped groove and gradually translate as a whole from the feed end of the roller 11 to the discharge end of the roller 11 along the V-shaped groove, and finally be discharged from the whole ball outlet pipe 12. It should be noted here that during the rotation of the roller 11, the qualified fuel ball translates as a whole from the feed end of the roller 11 to the discharge end of the roller 11 along a direction parallel to the axis of the roller 11, and the fuel ball continues to roll in the V-shaped groove during the translation. When the fuel ball rolls in the V-shaped groove, the distance between the center of the ball and the axis of the roller 11 is a certain value, and the center of the ball only translates from the feed end to the discharge end with the ball. During the rotation of the roller 11, unqualified fuel balls or debris fall from the gap between the detection gauge plate 7 and the roller 11, and fall into the waste collection funnel 9 and are discharged through the waste outlet pipe 10, and finally the unqualified fuel balls or debris are screened out.

[0058] In the above process, the ball rolls in the V-shaped groove, and can maintain smooth operation without vibration and impact during transportation from the inlet to the outlet. Compared with the structure with protruding redirecting teeth or other interferences on the spiral track, the impact of redirecting teeth or interferences on the ball is avoided, which greatly reduces the damage to the ball, reduces the debris generated by the collision and reduces the vibration of the equipment.

[0059] like Figure 2As shown, after the whole ball 8 is placed in the V-shaped groove, the plane passing through the center of the whole ball 8 in the V-shaped groove and the axis of the roller 11 is the first plane, and the roller 11 is cut along the first plane to obtain the cross section of the V-shaped groove. The point of the cross section of the V-shaped groove closest to the axis of the roller 11 is point A. In other words, the intersection of the bottom of the V-shaped groove and the first plane is point A.

[0060] The contact points between the whole ball 8 and the groove walls on both sides of the V-shaped groove are point B1 and point B2 respectively. It should be noted that both point B1 and point B2 are located on the first plane.

[0061] The center of the whole ball 8 is point O, and the straight line perpendicular to the axis of the roller 11 and passing through point O is the first straight line. It should be noted that the first straight line is also located on the first plane. The angle between the straight line OA and the first straight line is α, and the maximum value of the α angle is M. From the entrance end to the exit end of the V-shaped groove, the α angle changes back and forth periodically between M and -M. That is, along the extension direction of the V-shaped groove, the α angle changes back and forth periodically between M and -M, and the straight line OA swings back and forth on both sides of the first straight line.

[0062] Alternatively, from the inlet end to the outlet end of the V-shaped groove, the angle α changes gradually between M and -M. That is, along the extension direction of the V-shaped groove, the angle α changes gradually between M and -M, and the straight line OA swings on both sides of the first straight line.

[0063] Preferably, the angle value of the angle α at the entrance end of the V-shaped groove can be any angle value between ±M, and the angle value of the angle α at the entrance end of the V-shaped groove is M or -M. The angle value of the angle α at the exit end of the V-shaped groove can be any angle value between ±M, and preferably, the angle value of the angle α at the exit end of the V-shaped groove is M or -M, which is not limited here.

[0064] With such arrangement, when the driving assembly drives the roller 11 to rotate, the fuel balls themselves continuously roll in the V-shaped grooves. Since the angle α gradually changes between M and -M, the detection rate of balls of unqualified size is further improved.

[0065] In the above embodiment, the rotation mode of the ball can be controlled by swinging the rotation axis of the ball through the periodic change of the angle α, so that the ball will pass through the parallel area between the detection gauge plate 7 and the roller 11 in any circumferential direction during the process from the inlet to the outlet. That is, the contact points between the detection gauge plate 7 and the whole ball 8 are spread over the entire spherical surface by utilizing the rotation of the whole ball 8 itself, so that fuel balls with defects in various directions can all leak out through the gap between the gauge plate and the roller 11. Compared with the existing ordinary spiral track structure, the detection rate of balls of unqualified size is greatly improved, even up to 100%.

[0066] Furthermore, in a specific embodiment, the surface passing through the entrance of the V-groove and perpendicular to the axis of the roller 11 is the end surface of the main shaft. In other words, the end surface of the main shaft is perpendicular to the axis of the roller 11, and the point of the main shaft end surface passing through the entrance of the V-groove is the farthest from the exit of the V-groove. z is the distance between the center of the whole ball and the end surface of the main shaft; Z is the pitch of the V-groove; k is an integer; and M is the maximum amplitude of α. Among them,

[0067]

[0068] The value of k can be set according to actual conditions. The range of M can be 0°≤M<90°, which can be set according to actual conditions and is not limited here.

[0069] Of course, the angle between the groove walls on both sides of the V-shaped groove is θ, which can be a right angle or a non-right angle, and is not limited here. The cross section of the V-shaped groove is obtained by cutting the roller 11 along the first plane, and the angle between the cross sections of the groove walls on both sides in the cross section of the V-shaped groove is the angle θ between the groove walls on both sides of the V-shaped groove. The cross sections of the groove walls on both sides in the cross section of the V-shaped groove are two intersecting lines, and the angle between the two intersecting lines is θ.

[0070] Preferably, the radius r of the fuel ball is smaller than the depth h of the V-groove, and the angle θ between the groove walls on both sides of the V-groove is 60°≤θ≤120°. When the angle θ is too large, the depth h of the V-groove is small, and the required length of the roller 11 is longer; when the angle θ is too small, the depth h of the V-groove teeth is large, and the required length of the roller 11 is shorter.

[0071] like Figure 3 As shown, the contact point between the detection gauge plate 7 and the above-mentioned whole ball 8 is point P, and the straight line OP is perpendicular to the axis of the roller 11.

[0072] Furthermore, when the roller 11 is placed horizontally, the straight line OP is also in the horizontal direction. The detection gauge plate 7 may be located obliquely above the roller 11. The detection gauge plate 7 may be in the shape of a flat plate, which is not limited here.

[0073] like Figure 3 As shown, in another embodiment, assuming that the value of angle α remains unchanged, during the rotation of roller 11, when the whole ball 8 rolls along the V-groove without relative sliding, the intersection of its rolling axis and the spherical surface of the whole ball 8 is point Q and point Q1, point P and point Q are located on the same hemisphere, and straight line OP is perpendicular to straight line OQ. Straight line OQ swings up and down with straight line OP as the axis as the angle α changes. When the whole ball 8 rolls, the path that point P passes on the spherical surface is deflected. By setting a reasonable V-groove offset angle α and the length of the V-shaped track, the circumferential direction of the track of point P can cover the entire spherical surface, which can further increase the detection rate.

[0074] Since the direction of the instantaneous velocity of the contact point between the spherical surface of the fuel ball and point P is perpendicular to the plane formed by OP and OQ, the velocity direction of the contact point between the spherical surface of the fuel ball and point P is actually determined by the offset angle α of OA, and its speed can be controlled by controlling the rotation speed of the roller 11. In actual use, by adjusting the offset angle α of OA, point P can scan the spherical surface, the density of the scanning line is determined by the maximum value of the offset angle α, and the scanning speed is determined by the rotation angular velocity of the roller 11.

[0075] like Figure 2 As shown, preferably, assuming that the value of angle α remains unchanged, the angle between the groove walls on both sides of the V-shaped groove is a right angle, and during the rotation of the roller 11, when the whole ball 8 rolls along the V-shaped groove without relative sliding, the intersection points of its rolling axis and the spherical surface of the whole ball 8 are points Q and Q 1 Point P and point Q are located on the same hemisphere, and the angle between the straight line OQ and the straight line OA is β;

[0076]

[0077] Wherein, H is the distance between the center of the whole ball 8 and the axis of the roller 11; r is the radius of the whole ball 8.

[0078] Specifically, the angle between the two side walls of the V-shaped groove is taken as an example. At this time, the distances h1 and h2 between the contact points B1 and B2 of the sphere and the two side walls and the axis of the roller 11 are respectively:

[0079]

[0080]

[0081] Since there is no sliding friction, the speed of the sphere at points B1 and B2 is the same as the linear speed of the V-groove at those points, so:

[0082]

[0083] get:

[0084]

[0085] Taylor expansion of the right side gives:

[0086]

[0087] In another embodiment, assuming that the value of angle α remains unchanged, the angle between the groove walls on both sides of the V-shaped groove is a right angle, and during the rotation of the roller 11, when the whole ball 8 rolls along the V-shaped groove without relative sliding, the intersection points of its rolling axis and the spherical surface of the whole ball 8 are points Q and Q. 1 Point P and point Q are located on the same hemisphere, and the angle between the straight line OQ and the straight line OA is β;

[0088]

[0089] Wherein, H is the distance between the center of the whole ball 8 and the axis of the roller 11; r is the radius of the whole ball 8.

[0090] In another embodiment, the coordinates of points A, B1 and B2 in cylindrical coordinates are as follows, wherein the cylindrical coordinates take the intersection of the plane passing through the entrance end of the V-shaped groove and perpendicular to the axis of the roller 11 and the axis of the roller 11 as the origin, and take the axis of the roller 11 as the reference axis;

[0091]

[0092]

[0093]

[0094] Among them, the surface passing through the entrance of the V-shaped groove and perpendicular to the axis of the roller 11 is the end surface of the main shaft, z is the distance between the center of the whole ball 8 and the end surface of the main shaft; H is the distance between the center of the whole ball 8 and the axis of the roller 11; r is the radius of the whole ball 8; h1 is the distance between point B1 and the axis of the roller 11; h2 is the distance between point B2 and the axis of the roller 11. The curved surface of the V-shaped groove can be completely determined by the positions of points A, B1 and B2.

[0095] In a specific embodiment, the above-mentioned ball separation device further includes a baffle 5. The baffle 5 is disposed in the separation cylinder 13, and the baffle 5 is fixedly connected to the cylinder wall of the separation cylinder 13.

[0096] Further, the baffle 5 can be located above the roller 11, and during the rotation of the roller 11, the whole ball 8 placed in the V-shaped groove can always be in point contact with the baffle 5. In this way, the baffle 5 can prevent the fuel ball in the V-shaped groove from moving up and out of the V-shaped groove. Preferably, the baffle 5 can be located directly above the roller 11, and the vertex of the whole ball 8 placed in the V-shaped groove can always be in point contact with the baffle 5. The baffle 5 can be fixedly connected to one end wall of the separation cylinder 13, which is not limited here.

[0097] The detection gauge plate 7 and the baffle plate 5 are spaced appropriately to restrict the fuel ball to a straight track, that is, the fuel ball can only translate from the inlet end to the outlet end of the V-shaped groove and continuously rotate during the translation process.

[0098] In order to ensure the safety of operators and equipment and allow operators to operate and maintain at close range, the end walls of the separation cylinder 13 are shielding plates 4. Alternatively, the entire separation cylinder 13 can be a shielding cylinder, which is not limited here.

[0099] The roller 11 can be connected to the driving assembly through the main shaft 1, the main shaft 1 passes through the separation cylinder 13, and a bearing can be provided between the main shaft 1 and the separation cylinder 13. A transmission can also be provided between the roller 11 and the driving assembly, which is not limited here. The portion of the main shaft 1 extending out of the separation cylinder 13 is also provided with a locking nut 2.

[0100] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0101] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0102] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0103] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A ball separation device, characterized in that: include: Separation cylinder; A roller, the roller is rotatably disposed in the separation cylinder, and a V-shaped groove is disposed on the outer surface of the roller, the V-shaped groove extends in a spiral shape on the outer surface of the roller, and the groove walls on both sides of the V-shaped groove are smooth curved surfaces; A detection gauge plate, wherein the detection gauge plate is disposed in the separation cylinder and fixedly connected to the cylinder wall of the separation cylinder, and during the rotation of the roller, the whole ball placed in the V-shaped groove can always be in point contact with the detection gauge plate; A waste collecting funnel and a waste outlet pipe, wherein the waste collecting funnel is arranged below the roller, and the waste outlet pipe is connected with the outlet of the waste collecting funnel; A feed pipe and a whole ball outlet pipe, both of which are fixedly connected to the wall of the separation cylinder, and the outlet of the feed pipe is opposite to the feed end of the roller, and the whole ball outlet pipe is opposite to the discharge end of the roller; A driving assembly, used for driving the roller to rotate; After the whole ball is placed in the V-shaped groove, the plane passing through the center of the whole ball in the V-shaped groove and the axis of the roller is the first plane, and the roller is cut along the first plane to obtain the cross section of the V-shaped groove. The point of the cross section of the V-shaped groove closest to the axis of the roller is point A, and the contact points between the whole ball and the groove walls on both sides of the V-shaped groove are points B1 and B2 respectively. The center of the whole ball is point O, and the straight line perpendicular to the axis of the roller and passing through point O is the first straight line. The angle between the straight line OA and the first straight line is α, and the maximum value of the angle α is M; from the entrance end to the exit end of the V-shaped groove, the angle α changes periodically between M and -M; or, from the entrance end to the exit end of the V-shaped groove, the angle α changes gradually between M and -M.

2. The ball separation device according to claim 1, characterized in that: in, The surface passing through the entrance of the V-groove and perpendicular to the roller axis is the main shaft end surface, z is the distance between the center of the above-mentioned whole ball and the main shaft end surface; Z is the pitch of the V-groove; k is an integer; M is the maximum amplitude of α.

3. The ball separation device according to claim 1, characterized in that: The contact point between the detection gauge plate and the whole ball is point P, and the straight line OP is perpendicular to the axis of the roller; When the roller is placed horizontally, the straight line OP is along the horizontal direction.

4. The ball separation device according to claim 3, characterized in that: Assuming that the value of angle α remains unchanged, when the whole ball rolls along the V-shaped groove without relative sliding during the rotation of the roller, the intersection points of its rolling axis and the spherical surface of the whole ball are points Q and Q. 1 Points P and Q are on the same hemisphere, and line OP is perpendicular to line OQ.

5. The ball separation device according to claim 3, characterized in that: Assuming that the value of angle α remains unchanged, the angle between the two sides of the V-shaped groove is a right angle. During the rotation of the roller, when the whole ball rolls along the V-shaped groove without relative sliding, the intersection points of its rolling axis and the spherical surface of the whole ball are points Q and Q. 1 Point P and point Q are located on the same hemisphere, and the angle between the straight line OQ and the straight line OA is β; Wherein, H is the distance between the center of the whole ball and the axis of the roller; r is the radius of the whole ball.

6. The ball separation device according to claim 3, characterized in that: Assuming that the value of angle α remains unchanged, the angle between the two sides of the V-shaped groove is a right angle. During the rotation of the roller, when the whole ball rolls along the V-shaped groove without relative sliding, the intersection points of its rolling axis and the spherical surface of the whole ball are points Q and Q. 1 Point P and point Q are located on the same hemisphere, and the angle between the straight line OQ and the straight line OA is β; Wherein, H is the distance between the center of the whole ball and the axis of the roller; r is the radius of the whole ball.

7. The ball separation device according to claim 1, characterized in that: The coordinates of points A, B1 and B2 in cylindrical coordinates are as follows. The cylindrical coordinates take the intersection of the surface passing through the entrance end of the V-groove and perpendicular to the roller axis and the roller axis as the origin, and the roller axis as the reference axis; Among them, the surface passing through the entrance end of the V-groove and perpendicular to the roller axis is the main shaft end face, z is the distance between the center of the above-mentioned whole ball and the main shaft end face; H is the distance between the center of the above-mentioned whole ball and the roller axis; r is the radius of the whole ball; h1 is the distance between point B1 and the roller axis; h2 is the distance between point B2 and the roller axis.

8. The ball separation device according to claim 1, characterized in that: It also includes a baffle plate which is arranged in the separation cylinder and fixedly connected to the cylinder wall of the separation cylinder. The baffle plate is located above the roller, and during the rotation of the roller, the whole ball placed in the V-shaped groove can always be in point contact with the baffle plate.

9. The ball separation device according to claim 1, characterized in that: The end walls at both ends of the separation cylinder are shielding plates.

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