CN218098109U - Magnetic field jacking force testing equipment - Google Patents

Abstract

The utility model discloses a magnetic field jacking force test device, which comprises a base, a plate body, a support piece, a jacking device and an induction device, wherein the plate body is fixed above the base and is provided with a through hole which penetrates through the plate body along the up-down direction, and the plate body is suitable for placing a lifting magnet; the support piece is matched in the through hole, and the support piece can extend out of the upper hole of the through hole to jack the lifting magnet off the plate body; the supporting device is arranged on the base and is suitable for pushing the supporting piece so that the supporting piece extends out of the upper orifice of the through hole; the induction device is connected with the supporting device and is suitable for monitoring the supporting force of the supporting device. The utility model discloses a magnetic field top power test equipment that takes off's easy and simple to handle, the security is high, efficiency of software testing and measuring accuracy are high.

Description

Magnetic field jacking force testing equipment

Technical Field

The utility model relates to a magnetic force test technical field specifically, relates to a magnetic field top power of taking off test equipment.

Background

The lifting magnet comprises a lifting electromagnet, a lifting permanent magnet and an electric control permanent magnet, is a device for attracting a workpiece by utilizing electromagnetic force or permanent magnetic force, is mainly applied to industries such as power plants, metallurgy, mines, building materials and the like, and is mainly used for adsorbing and carrying ferromagnetic parts. In order to understand the performance of the lifting magnet and ensure the use safety, the magnetic force value of the lifting magnet should be measured before, during and after overhaul, but in the related art, the measurement of the magnetic force value of the lifting magnet has the problems of complicated operation, poor safety, low test efficiency and test precision and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a based on utility model people makes to the discovery and the understanding of following fact and problem:

in the related technology, the lifting magnet is mostly subjected to magnetic detection in a pulling-out force mode, a special portal frame is needed in the detection process, and because the pulling-out force values of a plurality of large-tonnage lifting magnets are dozens of tons, the rigidity and the strength of the portal frame must be sufficiently ensured, so that the portal frame has to be heavy, heavy and large, and is inconvenient to transport. Especially, the diameter of many round hoisting electromagnets is very big, and some are close to 3 meters, and the hoisting ring and the chain are as long as more than 2 meters, so that a very big and very wide portal frame is needed, and ultra-wide transportation is needed.

Secondly, the auxiliary devices for connecting the hoisting magnet and the portal frame are multiple and heavy, the installation is laborious, hands and feet can be injured by squeezing carelessly, and the connecting shaft pin of the auxiliary devices is easy to deform, bend and break due to the large testing force value, so that the cost of easily damaged parts is caused. When the shaft pin and the like deform, the shaft pin is not easy to take out, and a lot of troubles and working hours are often added, so that the detection and test efficiency is influenced.

In the related art, a lifting magnet needs to be lifted to the central position of a test board by using a lifting hook of a crane, a portal frame also needs to be moved to a corresponding position, then the tare weight of the lifting magnet needs to be weighed by using the lifting hook of the portal frame, a magnetic field is generated by continuous ascending and descending of the lifting hook on the portal frame, and a steel wire rope which is eccentrically obliquely pulled in the weighing process can be ground and pressed on a cross beam of the portal frame. After detection is finished, demagnetization and lifting are carried out by the same method, and the eccentric diagonal-pulling steel wire rope is ground to press a cross beam of the portal frame. The series of operations are all prone to safety accidents.

In addition, when the lifting magnet is pulled off vertically with strong force, large vibration can be generated, and meanwhile, shaking can be generated, so that the measurement accuracy and the service life of the force measuring instrument are influenced. When repeated testing is carried out, the lifting magnet is difficult to be superposed at the position of one time when placed again, so that the coincidence error of the residual magnetic polar direction generated by the last testing of the testing board and the polar direction of the regenerated magnetic field is possibly large, and the magnetic force is possibly mutually counteracted, so that the data repeatability error of the force value is possibly large.

Finally, many non-detachable and difficult-to-detach lifting magnets in use are not well placed under a gantry, and magnetic force measurement is almost impossible. Especially, the combined crane can only be detached for detection, so that the disassembly and assembly time and the workload can be increased, the normal production of users can be delayed, and economic loss is caused.

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, the embodiment of the utility model provides a magnetic field top release force test equipment, this magnetic field top release force test equipment's easy and simple to handle, security is high, efficiency of software testing and measuring accuracy are high.

The utility model discloses magnetic field top takes off power test equipment includes: a base; the lifting magnet is arranged on the plate body, and the lifting magnet is arranged on the plate body; a support fitted in the through hole, the support being extendable from an upper aperture of the through hole to lift the lifting magnet off the plate body; the supporting device is arranged on the base and is suitable for pushing the supporting piece so that the supporting piece extends out of the upper orifice of the through hole; the induction device is connected with the supporting device and is suitable for monitoring the supporting force of the supporting device.

In some embodiments, the plurality of through holes are divided into a plurality of hole groups, the plate body has a circumferential direction and a radial direction, the plurality of hole groups are arranged at intervals along the circumferential direction of the plate body, and each hole group comprises a plurality of through holes arranged at intervals along the radial direction of the plate body; the support member is provided with a plurality of support members, the support members are arranged in a one-to-one correspondence with the hole groups, and each support member is suitable for being matched in different through holes of each hole group so as to realize the adjustability of the support positions of the support members.

In some embodiments, the plate body is provided with a central hole at the intersection of the directions of extension of the hole groups, the support being fitted in the central hole.

In some embodiments, the supporting device has a plurality of supporting devices, the supporting devices are arranged below the supporting members in a one-to-one correspondence manner, each of the supporting devices is suitable for supporting each of the supporting members, the sensing device has a plurality of sensing devices, and the sensing devices correspond to the supporting devices in a one-to-one correspondence manner.

In some embodiments, the base has a plurality of bases, the plurality of bases includes a plurality of first seats, the plurality of first seats are disposed under the plurality of hole groups in a one-to-one correspondence manner, each first seat is provided with a first groove, the first groove extends along the radial direction of the plate body, and the groove opening faces upward, and the propping device is disposed in the first groove and is adjustable in position along the extending direction of the first groove.

In some embodiments, the plurality of seats comprises a second seat provided at the intersection of the plurality of first seats, the second seat being provided with a second slot in which the jacking means below the central hole fits.

In some embodiments, the propping device has a driving end facing the supporting member, and the driving end of the propping device is provided with a slot in which the supporting member is fitted.

In some embodiments, the magnetic field jacking and releasing force testing device comprises a bearing frame, wherein a plurality of through holes are formed in the plate body, the supporting pieces are assembled in the through holes, the bearing frame is matched between the jacking device and the supporting pieces, and the bearing frame is suitable for synchronously jacking the supporting pieces when the jacking device jacks.

In some embodiments, the plurality of through holes include a plurality of rows and a plurality of columns, the plate body has a length direction and a width direction, each row of through holes includes a plurality of through holes arranged at intervals along the length direction of the plate body, and each column of through holes includes a plurality of through holes arranged at intervals along the width direction of the plate body.

In some embodiments, the shape of the force bearing frame is consistent with the arrangement shape of the through holes.

In some embodiments, there are a plurality of the bases, the base is provided with a matching groove, the force-bearing frame can be slidably matched in the matching grooves of the bases, there are a plurality of the top supporting devices, the top supporting devices are matched in the matching grooves of the bases in a one-to-one correspondence, and the top supporting devices are suitable for synchronously supporting the force-bearing frame.

In some embodiments, the side wall of the base is provided with a flange, the flange is provided with an assembly hole, the base is connected with the plate body through a fastener, and the assembly hole is suitable for the fastener to pass through.

In some embodiments, the base is provided with a reinforcing plate connected between the side wall of the base and the flange.

The utility model discloses magnetic field top pulling force test equipment (hereinafter referred to as test equipment) has following technological effect:

1. the testing equipment is placed at the lower end of the testing board, the lifting magnet can be jacked off from the bottom of the magnetic force adsorption surface by using a supporting piece such as a mandril or a jacking strip, and the peak force value is obtained. The large and heavy pulling-off force portal frame is not needed, the detection instrument is light and simple, the detection is implemented by moving the upper door conveniently, and the operation is convenient.

2. During the use, jack-up for magnet can directly place on test equipment's plate body, need not to install and remove loaded down with trivial details heavy connecting device, both alleviateed physical power, can accelerate detection speed again, promoted efficiency of software testing.

3. The lifting magnet which can not be disassembled and is inconvenient to disassemble can be directly placed on the plate body in the non-disassembling state, the gross weight is firstly measured, then the total force value is measured under the same condition, and the gross weight is subtracted to obtain the jacking force value (magnetic force value), namely the original pulling force value, so that the detection of the lifting magnet which is inconvenient and can not detect the magnetic force is facilitated.

4. During detection, a portal frame which is unstable, needs manpower to push frequently and is hung by collision of a crane hook and a steel wire rope frequently is not provided, and the safety guarantee of the operation environment of detection personnel is enhanced.

5. The jacking force is used for jacking the lifting magnet from the bottom by slowly applying force, so that large instant impact force cannot be generated on the sensing device, and the data of the measuring force value is more accurate.

6. Because the instantaneous impact force of the jacking force is small, the lifting magnet deviates less when being jacked, and when repeated testing is needed, the magnetic field conduction position coincidence error between the magnet and the testing board is small, the force value testing data repeatability error can be correspondingly reduced, and the detection precision and accuracy are improved.

Drawings

Fig. 1 is a schematic perspective view of a magnetic field ejection force testing apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of the base in fig. 1.

Fig. 3 is a schematic view of the second seat of fig. 2.

Fig. 4 is a schematic view of the telescoping of the jacking devices and sensing devices of fig. 1.

Fig. 5 is a schematic view of the support member of fig. 1.

Fig. 6 is an expanded view of the jacking device of fig. 1.

Fig. 7 is a schematic bottom perspective view of the magnetic ejection force testing apparatus of fig. 1 in use.

FIG. 8 is a schematic side view of the magnetic ejection force testing apparatus of FIG. 1 in use.

Fig. 9 is a schematic perspective view of a magnetic force jacking force testing device according to another embodiment of the present invention.

Fig. 10 is a schematic view of the carrier and the base in fig. 9.

Fig. 11 is a perspective view of the magnetic ejection force testing apparatus of fig. 9.

Fig. 12 is a side view of the magnetic ejection force testing apparatus of fig. 9.

Fig. 13 is a schematic partial cross-sectional view of the magnetic ejection force testing apparatus of fig. 9.

Fig. 14 is a schematic partial sectional view showing a use state of a magnetic ejection force testing apparatus according to still another embodiment of the present invention.

Reference numerals:

a magnetic field ejection force test apparatus 100;

a base 1; a first seat 11; a first groove 111; a second seat 12; a second groove 121; a flanging 13; a fitting hole 14; a reinforcing plate 15; a mating groove 101;

a plate body 2; a through hole 21; a central bore 22;

a support 3; a slot 31;

a jacking device 4; a piston 41; a cylinder 42;

an induction device 5;

a bearing frame 6;

a lifting magnet 200.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 14, a magnetic field jacking force testing apparatus 100 according to an embodiment of the present invention includes a base 1, a plate body 2, a support member 3, a jacking device 4 and an induction device 5.

As shown in fig. 1, the base 1 may be provided at the lowest part, and the base 1 may be a unitary structure and may be connected and fixed with the ground or other platform. During the test, the base 1 can bear a large reverse force and can be kept still.

The plate body 2 is fixed on the upper side of the base 1, the plate body 2 is provided with a through hole 21, the through hole 21 penetrates through the plate body 2 along the up-down direction, and the plate body 2 is suitable for placing the lifting magnet 200. As shown in fig. 1, the plate body 2 may be welded and fixed above the base 1, and in other embodiments, the plate body 2 may also be detachably fixed above the base 1 by a fastener such as a bolt. The upper surface of the plate body 2 may be a flat surface and used to place the lifting magnet 200.

The support 3 is fitted in the through hole 21, and the support 3 is protruded from the upper opening of the through hole 21 to eject the lifting magnet 200 from the plate body 2. As shown in fig. 1, the supporter 3 may be a pin, the supporter 3 may be fitted into the through hole 21 and may be moved in an up-and-down direction, a portion of the supporter 3 may protrude from an upper opening of the through hole 21 when the supporter 3 is moved upward, so that the lifting magnet 200 may be ejected from the plate body 2, and the supporter 3 may be hidden in the through hole 21 when the supporter 3 is moved downward, in which case the lifting magnet 200 may be placed above the plate body 2.

The propping device 4 is arranged on the base 1, and the propping device 4 is suitable for propping the supporting piece 3 so that the supporting piece 3 extends out of the upper opening of the through hole 21. As shown in fig. 1, the supporting device 4 may be a jack, but may also be other types of supporting devices 4, such as a pneumatic supporting device 4, an electric push rod, etc. The jacking device 4 may be fixed to the base 1 below the plate body 2. The supporting device 4 can be extended and retracted, the supporting member 3 can be connected to the top end of the supporting device 4, and when the supporting device 4 is extended, the supporting device 4 can drive the supporting member 3 to move upwards, so that the supporting member 3 can be ejected out of the through hole 21.

The sensing device 5 is connected to the jacking device 4, the sensing device 5 being adapted to monitor the jacking force of the jacking device 4. The sensing means 5 may be a pressure sensor. The sensing device 5 may be provided at the bottom end of the jacking device 4 and the sensing device 5 may be sandwiched between the jacking device 4 and the base 1. When the supporting device 4 is extended, the supporting device 4 applies a reverse acting force to the sensing device 5, and the sensing device 5 can monitor the reverse acting force, so that an acting force value required for ejecting the lifting magnet 200 from the plate body 2 can be indirectly measured.

In some embodiments, there are a plurality of through holes 21, the plurality of through holes 21 are divided into a plurality of hole groups, the plate body 2 has a circumferential direction and a radial direction, the plurality of hole groups are arranged at intervals along the circumferential direction of the plate body 2, and each hole group includes a plurality of through holes 21 arranged at intervals along the radial direction of the plate body 2; the supporting member 3 is provided in plurality, the plurality of supporting members 3 are arranged in one-to-one correspondence with the plurality of hole groups, and each supporting member 3 is adapted to be fitted in a different through hole 21 of each hole group to enable adjustment of the supporting position of the plurality of supporting members 3.

As shown in fig. 1, the plate body 2 may be a disc shape, three hole groups may be provided, and the three hole groups may be arranged at equal intervals along the circumferential direction of the plate body 2, that is, an included angle between two connected hole groups may be 120 degrees. Each hole group may include a plurality of through holes 21, and the plurality of through holes 21 of each hole group are arranged at intervals in the radial direction of the plate body 2. In other embodiments, the number of groups of holes may be four, five, six, seven, eight, etc.

The number of the supporting members 3 may be the same as the number of the hole groups, and when in use, each hole group may be configured with one supporting member 3, and the supporting members 3 may be inserted into different through holes 21 of the same hole group, so that the supporting position of the supporting members 3 may be adjusted. Therefore, on one hand, the supporting profiles of the plurality of supporting pieces 3 can be matched with the shape of the lifting magnet 200, and on the other hand, the supporting requirements of the lifting magnets 200 with different specifications and sizes can be met.

For example, the lifting magnet 200 may have a disk shape, and when the radial dimension of the lifting magnet 200 is large, the plurality of supports 3 may be inserted into the outermost through holes 21 of the plurality of hole groups, respectively, and when the radial dimension of the lifting magnet 200 is small, the plurality of supports 3 may be inserted into the inner through holes 21 of the plurality of hole groups, respectively.

Preferably, when the lifting magnet 200 and the plate body 2 are both disk-shaped, the plurality of supports 3 may be located on the same circumference. The balance and stability of the support can be enhanced.

In some embodiments the plate body 2 is provided with a central hole 22, the central hole 22 being located at the intersection of the extension directions of the plurality of hole groups, the support 3 being fitted in the central hole 22. As shown in fig. 1, the plate body 2 may be a disk shape, the central hole 22 may be disposed at an axial center position of the plate body 2, and the support member 3 may be assembled in the central hole 22, when in use, the support member 3 at the central hole 22 may act as a support for the central position of the lifting magnet 200, so as to further improve the balance of the support force distribution and the support stability.

In some embodiments, there are a plurality of the supporting devices 4, a plurality of the supporting devices 4 are disposed under the plurality of supporting members 3 in a one-to-one correspondence, each supporting device 4 is adapted to support each supporting member 3, there are a plurality of the sensing devices 5, and a plurality of the sensing devices 5 are in a one-to-one correspondence with the plurality of supporting devices 4.

As shown in fig. 2, the number of the supporting devices 4 may be the same as the number of the supporting members 3, when in use, a plurality of supporting devices 4 may be extended synchronously, and each supporting device 4 may jack up the corresponding supporting member 3, thereby realizing synchronous supporting of a plurality of supporting members 3. The induction devices 5 can also be provided with a plurality of induction devices 5, each induction device 5 can be arranged below the corresponding supporting device 4, and during use, each induction device 5 can realize independent monitoring on each supporting device 4.

From this, on the one hand can ensure security and the stability of use, has avoided propping up easy trouble and the problem that causes the accident when device 4 and induction system 5 only set up one, and on the other hand can promote measuring accuracy, can acquire a plurality of data through a plurality of induction system 5, has avoided the unable condition of judging of single data.

In some embodiments, the base 1 is multiple, the multiple base 1 includes multiple first seats 11, the multiple first seats 11 are disposed under the multiple hole groups in a one-to-one correspondence manner, each first seat 11 is provided with a first groove 111, the first groove 111 extends along the radial direction of the plate body 2 and has an upward groove opening, and the supporting device 4 is disposed in the first groove 111 and is adjustable in position along the extending direction of the first groove 111.

As shown in fig. 2, there may be three first seats 11, three first seats 11 are all disposed below the plate body 2, and the three first seats 11 are arranged at equal intervals along the circumferential direction of the plate body 2, that is, an included angle formed by two adjacent first seats 11 is 120 degrees. The number of first seats 11 may be the same as the number of sets of holes on the plate body 2, i.e. each first seat 11 may correspond to and be located below one set of holes. The first seats 11 may be U-shaped elongated slots, each first seat 11 extending in a radial direction of the plate body 2.

The first groove 111 may be a rectangular groove, each first seat 11 is provided with the first groove 111, and each first seat 11 may have one supporting device 4 installed in the first groove 111, and the supporting device 4 may move along the first groove 111 so as to adapt to the position of each supporting member 3 on the plate body 2. In addition, the arrangement of the first groove 111 has a protection effect, the supporting device 4 and the sensing device 5 can be installed in the first groove 111, and the condition that the supporting device 4 and the sensing device 5 are exposed outside is avoided.

In some embodiments, the plurality of seats 1 comprises a second seat 12, the second seat 12 being provided at the intersection of the plurality of first seats 11, the second seat 12 being provided with a second slot 121, the jack device 4 below the central hole 22 fitting within the second slot 121. As shown in fig. 2, only one second seat 12 may be provided, and the second seat 12 may be provided below the plate body 2 and opposite to the axis of the plate body 2. The second seat 12 is substantially U-shaped, and the second groove 121 of the second seat 12 is fitted with the supporting device 4 and the sensing device 5, thereby providing a protection effect against the supporting device 4 and the sensing device 5 at the central position of the board body 2.

In some embodiments, the propping device 4 has a driving end facing the support 3, the driving end of the propping device 4 is provided with a slot 31, and the support 3 is fitted in the slot 31. As shown in fig. 4 to 6, the jacking device 4 may be a jack, the jack may be a four-in-one combined electric jack, the jacking device 4 includes a cylinder 42 and a piston 41, and the piston 41 is movably fitted in the cylinder 42. The piston 41 extends substantially in the vertical direction, the top end of the piston 41 forms a driving end, and the insertion groove 31 is provided at the top end of the piston 41. During the installation, can be with support piece 3 disect insertion in the slot 31 of piston 41 to on the one hand made things convenient for support piece 3's installation and dismantlement, on the other hand can also play the effect to support piece 3 guiding orientation, has guaranteed the uniformity that a plurality of support piece 3 propped up.

In some embodiments, the magnetic field ejection force testing apparatus 100 includes a force-bearing frame 6, a plurality of through holes 21 are provided on the plate body 2, the plurality of through holes 21 are equipped with the supporting members 3 therein, the force-bearing frame 6 is fitted between the top-supporting device 4 and the plurality of supporting members 3, and the force-bearing frame 6 is adapted to synchronously eject the plurality of supporting members 3 when the top-supporting device 4 supports the top.

As shown in fig. 9, 10 and 13, the bearing frame 6 may be disposed between the base 1 and the plate body 2, when the number of the supporting members is large, the supporting devices 4 may not correspond to each other, and by disposing the bearing frame 6 between the supporting members and the supporting devices 4, the number of the supporting members and the number of the supporting devices 4 are not limited to each other, that is, a large number of supporting members may be supported by a small number of supporting devices 4, thereby meeting the use requirements.

In some embodiments, the plurality of through holes 21 include a plurality of rows and a plurality of columns, the plate body 2 has a length direction and a width direction, each row of through holes 21 includes a plurality of through holes 21 arranged at intervals along the length direction of the plate body 2, and each column of through holes 21 includes a plurality of through holes 21 arranged at intervals along the width direction of the plate body 2.

As shown in fig. 9, the plurality of through holes 21 may be arranged in two rows and two columns, that is, the plurality of through holes 21 may be arranged in a matrix shape as a whole. Because the lifting magnet 200 has the strip-shaped magnetic pole arrangement form and also has the short strip-shaped magnetic pole arrangement, the width of the magnetic pole is large or small, thereby meeting the use requirements of the lifting magnet 200 with different widths and different lengths.

In some embodiments, the shape of the force-bearing frame 6 is consistent with the arrangement shape of the plurality of through holes 21. As shown in fig. 9, the plurality of through holes 21 on the plate body 2 may be arranged in a groined shape, and correspondingly, the carrier 6 is also arranged in a groined shape. From this, can play the effect of propping up a plurality of support piece 3, also can reduce the consumptive material, reduce cost.

In some embodiments, there are a plurality of bases 1, the bases 1 are provided with matching grooves 101, the bearing frame 6 can be slidably matched in the matching grooves 101 of the bases 1, there are a plurality of supporting devices 4, the supporting devices 4 are matched in the matching grooves 101 of the bases 1 in a one-to-one correspondence, and the supporting devices 4 are suitable for synchronously supporting the bearing frame 6.

As shown in fig. 10, the number of the bases 1 may be the same as the number of the jack-up devices 4, each jack-up device 4 being fitted in the fitting groove 101 of the corresponding base 1. The arrangement form of the bases 1 can be matched with the shape of the bearing frame 6, and the bearing frame 6 can be matched in the matching grooves 101 of the bases 1 at the same time, so that the guiding precision of the movement of the bearing frame 6 can be enhanced on one hand, and the assembling precision of the bearing frame 6 can be ensured on the other hand.

In some embodiments, the side wall of the base 1 is provided with a flange 13, the flange 13 is provided with a mounting hole 14, the base 1 is connected with the plate body 2 through a fastener, and the mounting hole 14 is suitable for the fastener to pass through. As shown in fig. 2, two flanges 13 may be disposed on the base 1, the two flanges 13 may be disposed on one side of the base 1, the two flanges 13 extend along the extending direction of the base 1, each flange 13 may be disposed with a plurality of assembling holes 14, the plurality of assembling holes 14 extend along the extending direction of the flanges 13, the flanges 13 may be disposed to increase the contact area between the base 1 and the plate 2, reduce the pressure effect of the base 1 and the plate 2 when connected, and facilitate the connection and fixation of the base 1 and the plate 2.

It is understood that in other embodiments, the base 1 may be fixed to the plate 2 by welding, integral fitting, snap fitting, or the like.

In some embodiments, the base 1 is provided with a reinforcement plate 15, the reinforcement plate 15 being connected between the side wall of the base 1 and the flange 13. As shown in fig. 2, the reinforcing plate 15 may be a triangular plate, the reinforcing plate 15 may be fixed to the outer side of the side wall, and the reinforcing plate 15 may be connected to the included angle formed by the flange 13 and the side wall of the base 1. The reinforcing plate 15 may be provided in plural, and the plural reinforcing plates 15 are arranged at intervals along the extending direction of the base 1. The reinforcing plate 15 can enhance the structural strength of the base 1, and meets the weighing requirement and the impact requirement of the lifting magnet 200.

In some embodiments, as shown in fig. 14, the plate body 2 may be a rectangular plate, and in this case, the force bearing frame 6 may not be disposed between the plate body 2 and the base 1.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations to the above embodiments by those of ordinary skill in the art are intended to be within the scope of the present invention.

Claims (13)

1. A magnetic field ejection force test apparatus, comprising:

a base;

the lifting magnet is fixed above the base, and is provided with a through hole which penetrates through the plate body along the vertical direction and is suitable for placing a lifting magnet;

a support fitted in the through hole, the support being extendable from an upper aperture of the through hole to lift the lifting magnet off the plate body;

the supporting device is arranged on the base and is suitable for pushing the supporting piece so that the supporting piece extends out of the upper orifice of the through hole;

the induction device is connected with the supporting device and is suitable for monitoring the supporting force of the supporting device.

2. The magnetic field ejection force testing apparatus according to claim 1, wherein the through hole has a plurality of through holes, the plurality of through holes are divided into a plurality of hole groups, the plate body has a circumferential direction and a radial direction, the plurality of hole groups are arranged at intervals along the circumferential direction of the plate body, and each hole group includes a plurality of through holes arranged at intervals along the radial direction of the plate body;

the support part is provided with a plurality of support parts, the plurality of support parts are arranged in one-to-one correspondence with the plurality of hole groups, and each support part is suitable for being matched in different through holes of each hole group so as to realize the adjustability of the support positions of the plurality of support parts.

3. The magnetic field ejection force test apparatus according to claim 2, wherein the plate body is provided with a central hole at an intersection of extending directions of the plurality of hole groups, and the support member is fitted in the central hole.

4. The magnetic field roof separation force test equipment according to claim 3, wherein the roof supporting device has a plurality of roof supporting devices, the plurality of roof supporting devices are arranged below the plurality of supporting members in a one-to-one correspondence manner, each roof supporting device is adapted to support each supporting member, the induction device has a plurality of induction devices, and the plurality of induction devices correspond to the plurality of roof supporting devices in a one-to-one correspondence manner.

5. The magnetic field ejection force testing apparatus according to claim 4, wherein the plurality of bases includes a plurality of first seats, the plurality of first seats are disposed under the plurality of hole groups in a one-to-one correspondence, each of the first seats is provided with a first groove, the first groove extends along a radial direction of the plate body, and a groove opening faces upward, and the supporting device is disposed in the first groove and is adjustable in position along an extending direction of the first groove.

6. The magnetic field ejection force testing apparatus according to claim 5, wherein the plurality of bases includes a second seat provided at a junction of the plurality of first seats, the second seat being provided with a second groove in which the supporting device below the central hole is fitted.

7. The magnetic field ejection force testing apparatus according to claim 1, wherein the supporting device has a driving end facing the supporting member, the driving end of the supporting device is provided with a slot, and the supporting member is fitted in the slot.

8. The magnetic field ejection force test device according to claim 1, comprising a bearing frame, wherein a plurality of through holes are formed in the plate body, the supporting members are assembled in the plurality of through holes, the bearing frame is fitted between the top supporting device and the plurality of supporting members, and the bearing frame is adapted to synchronously eject the plurality of supporting members when the top supporting device supports the top.

9. The magnetic field ejection force testing apparatus according to claim 8, wherein the plurality of through holes includes a plurality of rows and a plurality of columns, the plate body has a length direction and a width direction, each row of the through holes includes a plurality of through holes arranged at intervals along the length direction of the plate body, and each column of the through holes includes a plurality of through holes arranged at intervals along the width direction of the plate body.

10. The magnetic field ejection force test device according to claim 8, wherein the shape of the carrier is identical to the arrangement shape of the plurality of through holes.

11. The magnetic field roof force test device of claim 8, wherein there are a plurality of said bases, said bases are provided with mating grooves, said carrier can be slidably fitted in said mating grooves of a plurality of said bases, said roof supporting means are provided in a plurality, a plurality of said roof supporting means are fitted in said mating grooves of a plurality of said bases in a one-to-one correspondence, and a plurality of said roof supporting means are adapted to simultaneously support said carrier.

12. The magnetic field ejection force test device according to any one of claims 1 to 11, wherein a flange is provided on a side wall of the base, an assembly hole is provided on the flange, the base is connected to the plate body by a fastener, and the assembly hole is suitable for a fastener to pass through.

13. The magnetic field ejection force testing apparatus according to claim 12, wherein the base is provided with a reinforcing plate connected between the side wall of the base and the flange.

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