Gear box casting surface sand stripping device and method

Abstract

The present invention relates to the technical field of vibrating sand-dropping machines, and specifically to a device and method for stripping sand from the surface of a gear box casting, comprising a vibrating box, a collecting bucket being provided at the bottom of the vibrating box, a vibrating motor being fixedly provided on the outer surface of the collecting bucket, a supporting leg being elastically connected to the bottom of the vibrating box via a vibrating spring, hidden cavities being provided inside the front and rear side walls of the vibrating box, the hidden cavities being communicated with the interior of the collecting bucket, through-holes being symmetrically provided on the front and rear side walls of the vibrating box, conveyor belts being provided inside the hidden cavities and facing the through-holes, and the two conveyor belts being symmetrically distributed; a carrier box in the present invention is used to accommodate castings, and a carrier mechanism can operate with the conveyor belt, and when the carrier mechanism passes through a rack, the carrier box can automatically flip over a quarter of a circle, so that different surfaces of the casting face downward alternately, so the present invention helps to improve the degree of sand stripping from the casting.

Description

Technical Field

[0001] The invention relates to the technical field of vibrating sand-falling machines, and in particular to a device and method for stripping sand grains from the surface of a gear box casting. Background Art

[0002] Gearbox castings are generally made by casting during the production process. During the casting process, molding sand is used as the main raw material for making casting molds to form the shape and size of the castings. However, after the casting is completed, some molding sand may adhere to the surface of the casting. This is mainly because the molding sand has a certain contact and adhesion with the surface of the casting during the filling and solidification process in the mold. Therefore, after the casting is completed, the sand on the surface of the casting needs to be stripped.

[0003] In the prior art, a vibrating sand-falling machine is generally used to remove sand particles from the surface of a casting. The vibrating sand-falling machine generally includes a vibrating box, a vibrating motor, a base, and a collecting bucket, wherein the surface of the vibrating box has several areas that can accommodate the casting. Specifically, during use, we put the casting into the vibrating box, and then turn on the vibrating motor, which drives the vibrating box to vibrate, thereby driving the casting in the vibrating box to shake continuously; during this process, the sand particles on the surface of the casting are shaken off and fall into the collecting bucket. Finally, after the vibration is completed, the casting in the vibrating box can be taken out.

[0004] Although the above-mentioned vibrating sand-falling machine can achieve the sand stripping effect to a certain extent, due to the different and irregular shapes of the gearbox castings, the castings cannot be turned over during the high-frequency vibration of the vibration box, that is, the castings always have only one side facing down. Therefore, the sand in certain dead corners on the castings is difficult to shake off from the castings, that is, the existing equipment does not strip the sand from the castings thoroughly enough. In view of this, we propose a device and method for stripping sand from the surface of a gearbox casting to well solve the above-mentioned disadvantages. Summary of the invention

[0005] The object of the present invention is to provide a device and method for stripping sand from the surface of a gear box casting, so as to solve the problems raised in the above-mentioned background technology.

[0006] The present invention is realized by the following technical scheme: a device for stripping sand grains from the surface of a gear housing casting, comprising a vibration box, a collecting bucket is provided at the bottom of the vibration box, a vibration motor is fixedly provided on the outer surface of the collecting bucket, a support leg is elastically connected to the bottom of the vibration box through a vibration spring, hidden cavities are provided inside the front and rear side walls of the vibration box, the hidden cavities are communicated with the inside of the collecting bucket, through-holes communicating with the hidden cavities are symmetrically provided on the front and rear side walls of the vibration box, a conveyor belt is provided inside the hidden cavity and at a position directly opposite to the through-hole, and the two conveyor belts are symmetrically distributed;

[0007] The vibration box is provided with a plurality of loading mechanisms inside, the loading mechanisms include a bottom plate, the length direction of the bottom plate is perpendicular to the length direction of the conveyor belt, the two ends of the bottom plate are respectively fixedly connected to the outer surfaces of the two conveyor belts, the top surface of the bottom plate is provided with a loading plate, the front and rear sides of the top of the loading plate are symmetrically provided with vertical plates, a loading box is provided between the two vertical plates, the loading box is a rectangular hollow structure without a cover, the inside of the loading box is evenly spaced along its own length direction, a rotating shaft is provided at both the front and rear ends of the loading box, the rotating shaft passes through the vertical plates and rotates with them, and the end of the rotating shaft is fixedly sleeved with a driven gear;

[0008] The top surface of the cargo box is slidably connected to a cover plate along its length direction, and the cover plate and the left and right side walls and the bottom wall of the cargo box are all penetrated by strip openings, and a porous plate is provided in the strip openings; four racks are evenly spaced on the front and rear side walls inside the vibration box and above the through opening, and when the cargo carrying mechanism moves to the rack position, the driven gear meshes with the rack, and when the cargo carrying mechanism passes through the rack, the cargo box rotates a quarter of a circle.

[0009] Optionally, a driven disk is fixedly mounted on the outer side of the rotating shaft, and the driven disk is located between the vertical plate and the driven gear. A spring ball is provided on the side of the driven disk facing the vertical plate, and four positioning slots are evenly opened on the outer surface of the vertical plate in a circular direction. In a natural state, the steel ball of the spring ball is embedded in the positioning slot.

[0010] Optionally, movable slots are symmetrically provided on both sides of the inner portion of the strip-shaped opening, a closing plate is inserted into the movable slot, a closing spring is connected between the inner end of the closing plate and the inner end of the movable slot, and in a natural state, the two closing plates abut against each other.

[0011] Optionally, an electromagnet is provided at the inner end of the movable slot, the closing plate is made of iron material, two conductive columns are provided on one end of the cover plate and on the left and right sides and bottom side of one end of the cargo box, and the two leads of the electromagnet are respectively connected to the corresponding two conductive columns; a power supply is also provided on the outer surface of the vertical plate, and two conductive contacts are provided on the inner surface of the vertical plate, and the two conductive contacts are respectively connected to the positive and negative poles of the power supply, and in a natural state, the two conductive contacts are respectively in contact with the two conductive columns located on the bottom side, and when the electromagnet is in a energized state, the two closed plates are attracted by the electromagnet and are in an expanded state.

[0012] Optionally, a sliding inclined plate is provided inside the vibration box, two ends of the sliding inclined plate respectively pass through two penetration holes and are fixedly connected to the inner wall of the vibration box, and the sliding inclined plate is also located on the inner side of the conveyor belt.

[0013] Optionally, a first magnetic block is provided on the inner side of the top of the carrier box, and a second magnetic block is provided at one end of the cover plate, when the first magnetic block and the second magnetic block are attracted to each other, the cover plate completely covers the carrier box, and a guide column is provided on the top surface of the cover plate and at a position close to the second magnetic block, and an arched discharge track is provided inside the vibration box and below the conveyor belt, the discharge track is fixedly connected to an inner side wall of the vibration box, and a guide groove is provided on the upper surface of the discharge track, when the carrier mechanism moves above the discharge track, the guide column is movably embedded in the guide groove, and when the guide column moves to the middle position of the discharge track, the cover plate is fully unfolded.

[0014] Optionally, a discharge hopper is further provided inside the vibration box, and a discharge opening for the discharge hopper to pass through is penetrated through one side wall of the vibration box. The discharge hopper is located below the discharge track, and the discharge hopper is tilted, and the tilt direction of the discharge hopper is opposite to the tilt direction of the sliding inclined plate.

[0015] Optionally, a hinge seat is provided in the middle section of the top surface of the base plate, the loading plate is hinged to the hinge seat, elastic parts are provided on both the front and rear sides of the top surface of the base plate, the top end of the elastic part is fixedly connected to the lower surface of the loading plate, and in a natural state, the loading plate is parallel to the base plate.

[0016] Optionally, four auxiliary rails are provided on one side wall of the interior of the vibration box and above the penetration opening, and the four auxiliary rails are spaced apart from the four racks. The auxiliary rail is a four-section structure consisting of an entry section, a lower horizontal section, a transition section and an upper horizontal section. One end of the carrier plate is rotatably connected to the auxiliary rail with a rolling shaft, and when the carrier mechanism moves to the auxiliary rail position, the rolling shaft can enter the auxiliary rail, and when the rolling shaft is located in the lower horizontal section, the carrier plate presents a posture with a low front and a high back, and when the rolling shaft is located in the upper horizontal section, the carrier plate presents a posture with a high front and a low back.

[0017] A method for stripping sand from the surface of a gear box casting, which is applicable to the above-mentioned device for stripping sand from the surface of a gear box casting, comprises the following steps:

[0018] Open the cover above the loading mechanism, and then place the gearbox casting to be stripped of sand into the loading box, with only one casting placed between two adjacent partitions;

[0019] After closing the cover, the loading mechanism rotates along the direction of the conveyor belt, and the vibration motor drives the vibration box to vibrate at a high frequency, so that the castings in the loading box also vibrate continuously, shaking off the sand on the surface;

[0020] When the loading mechanism moves to the rack position, the loading box rotates °, so that the other side of the casting faces downward. When the loading mechanism passes through four racks, the loading box rotates one circle;

[0021] The sand particles shaken off the casting pass through the porous plate and fall into the collection bucket. Finally, the casting in the carrier box is taken out, and the sand stripping work is completed.

[0022] Compared with the prior art, the present invention provides a device and method for stripping sand from the surface of a gearbox casting, which has the following beneficial effects:

[0023] 1. The carrier box of the present invention is used to accommodate castings, and the carrier mechanism can run with the conveyor belt. When the carrier mechanism passes through the rack, the carrier box can automatically turn over a quarter of a circle, so that different surfaces of the casting face downward alternately. Therefore, the present invention helps to improve the degree of sand stripping of the casting;

[0024] 2. The carrier box of the present invention has porous plates all around, but only the porous plates at the bottom are exposed, and the porous plates at other parts are closed, so that the sand on the porous plates at other parts can be prevented from falling back onto the casting, which helps to further improve the degree of sand stripping;

[0025] 3. The cover plate in the present invention is covered at the opening of the loading box by the adsorption action of the first magnetic block and the second magnetic block, and when the loading mechanism moves to the position above the discharge track, the cover plate can be automatically unfolded, so that the casting falls onto the discharge hopper, thereby realizing automatic unloading, which helps to reduce the labor intensity of manual labor;

[0026] 4. The loading plate in the present invention is hingedly arranged on the bottom plate. When the loading mechanism moves to the auxiliary track position, the loading plate can be tilted forward and backward, thereby further making different parts of the casting face downward, which is beneficial to further improve the degree of sand stripping of the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the vibration box of the present invention;

[0029] Figure 3 It is a schematic diagram of the object carrying mechanism of the present invention;

[0030] Figure 4 It is a cross-sectional schematic diagram of the object-carrying mechanism of the present invention;

[0031] Figure 5 It is a side view of the object carrying mechanism of the present invention;

[0032] Figure 6 This is a cross-sectional view of the vibration box structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the material discharge track of the present invention;

[0034] Figure 8 This is a schematic diagram of the vertical plate structure of the present invention;

[0035] Fig. 9 is a cross-sectional view of the object-carrying mechanism of the present invention;

[0036] Fig.10 This is a schematic diagram of the auxiliary track structure of the present invention;

[0037] Fig.11 This is a schematic diagram of the structure of the closing plate of the present invention;

[0038] Fig.12 for Figure 4 The corresponding figure at A is enlarged;

[0039] Fig.13 for Fig. 9 The corresponding figure at point B is enlarged.

[0040] In the figure: 100, vibration box; 101, vibration spring; 102, collection bucket; 103, vibration motor; 104, support leg; 105, hidden cavity; 106, penetration; 107, rack; 108, slide ramp; 109, discharge track; 110, guide groove; 111, unfolding opening; 112, discharge bucket; 113, auxiliary track; 1131, entry section; 1132, lower horizontal section; 1133, transition section; 1134, upper horizontal section; 114, discharge opening; 200, conveyor belt; 300, loading mechanism; 301, bottom plate; 302, loading plate; 303, vertical Plate; 304, loading box; 305, partition; 306, rotating shaft; 307, driven gear; 308, cover plate; 309, slide groove; 310, slider; 311, strip opening; 312, porous plate; 313, driven disk; 314, spring contact ball; 315, positioning slot; 316, movable slot; 317, closing plate; 318, closing spring; 319, electromagnet; 320, conductive column; 321, conductive contact; 322, first magnetic block; 323, second magnetic block; 324, guide column; 325, hinge seat; 326, elastic member; 327, rolling shaft; 400, power supply. DETAILED DESCRIPTION

[0041] 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.

[0042] Example 1: Please refer to Figure 1 - Fig.13 A device for stripping sand from the surface of a gear case casting comprises a vibration box 100, a collecting bucket 102 is provided at the bottom of the vibration box 100, a vibration motor 103 is fixedly provided on the outer surface of the collecting bucket 102, and a support leg 104 is elastically connected to the bottom of the vibration box 100 through a vibration spring 101. Therefore, when the vibration motor 103 is started, the vibration box can be driven to vibrate at a high frequency; hidden cavities 105 are provided inside the front and rear side walls of the vibration box 100, and the hidden cavity 105 is communicated with the interior of the collecting bucket 102. Therefore, the sand falling into the hidden cavity 105 will eventually fall into the collecting bucket 102, and the bottom wall of the collecting bucket 102 has an outlet, through which the sand collected in the collecting bucket 102 can be discharged.

[0043] Furthermore, through openings 106 communicating with the hidden cavity 105 are symmetrically provided on the front and rear side walls of the vibration box 100. Figure 6 As shown, a conveyor belt 200 is further provided inside the hidden cavity 105 and at a position directly opposite to the through opening 106, and two conveyor belts 200 are symmetrically distributed; the conveyor belt 200 can be a chain plate conveyor belt, and the two conveyor belts 200 keep synchronous operation. A plurality of carrying mechanisms 300 are provided inside the vibration box 100, and the carrying mechanisms 300 include a bottom plate 301, the length direction of the bottom plate 301 is perpendicular to the length direction of the conveyor belt 200, and the two ends of the bottom plate 301 are respectively fixedly connected to the outer surfaces of the two conveyor belts 200; specifically, the bottom front and rear sides of the bottom plate 301 are provided with connecting parts, and the connecting parts are fixedly connected to the outer surfaces of the corresponding conveyor belts 200, and a plurality of carrying mechanisms 300 are evenly spaced and arranged on the outer surface of the conveyor belt 200, and as the conveyor belt 200 is started, the plurality of carrying mechanisms 300 can be driven to reciprocate.

[0044] Furthermore, a loading plate 302 is provided on the top surface of the bottom plate 301, and vertical plates 303 are symmetrically provided on the front and rear sides of the top surface of the loading plate 302, and a loading box 304 is provided between the two vertical plates 303. The loading box 304 is a rectangular hollow structure without a cover, and a plurality of partitions 305 are evenly spaced inside the loading box 304 along its length direction. A rotating shaft 306 is provided at both the front and rear ends of the loading box 304, and the rotating shaft 306 passes through the vertical plates 303 and rotates with them, and the rotating shaft 306 is provided between the two vertical plates 303. 6 is fixedly sleeved with a driven gear 307 at the end thereof, and a cover plate 308 is slidably connected to the top surface of the cargo box 304 along its length direction; slide grooves 309 are symmetrically provided on both sides of the opening of the cargo box 304, and sliders 310 are symmetrically provided on both sides of the cover plate 308, and the sliders 310 are slidably matched with the slide grooves 309, so that the cover plate 308 can slide along the length direction of the cargo box 304, and in addition, the partition plate 305 is fixedly connected to the opposite side of the cover plate 308.

[0045] In addition, the cover plate 308 and the left and right side walls and the bottom wall of the object box 304 are all penetrated with a strip opening 311, such as Fig. 9 As shown, a porous plate 312 is provided in the strip opening 311; four racks 107 are evenly spaced on the front and rear side walls inside the vibration box 100 and located above the through opening 106; when the carrier mechanism 300 moves to the position of the rack 107, the driven gear 307 meshes with the rack 107, and when the carrier mechanism 300 passes through the rack 107, the carrier box 304 rotates a quarter of a circle; since the carrier box 304 is rotatably arranged between the two vertical plates 303, that is, the carrier box 304 can rotate freely, when the carrier mechanism 300 moves to the position of the rack 107, the driven gear 307 can automatically mesh with the rack 107, and since the carrier box 304 rotates a quarter of a circle after passing through one rack 107, when the carrier mechanism 300 passes through four racks 107, the carrier box 304 can rotate a full circle.

[0046] Specifically, the outer side of the rotating shaft 306 is fixedly sleeved with a driven disk 313, such as Figure 5 As shown, the driven plate 313 is located between the vertical plate 303 and the driven gear 307. A spring contact ball 314 is provided on the side of the driven plate 313 facing the vertical plate 303. Four positioning slots 315 are evenly opened along the annular direction on the outer surface of the vertical plate 303. Figure 8 As shown, in the natural state, the steel ball of the spring ball 314 is embedded in the positioning slot 315; that is, except for the rotation of the carrier box 304, in other states, the steel ball of the spring ball 314 is always embedded in the corresponding positioning slot 315, so that the carrier box 304 can only rotate when passing through the rack 107, and in other states, the carrier box 304 remains stable.

[0047] It should be noted that when this embodiment is in use, only one casting is placed between two adjacent partitions 305, so as to avoid friction and collision between the castings during vibration. In addition, since the carrier box 304 will intermittently rotate a quarter of a turn, each surface of the casting can have the opportunity to face downward, so that the sand particles in the blind corners of the casting can also fall off smoothly.

[0048] Furthermore, movable notches 316 are symmetrically provided on both sides of the strip opening 311. The movable notches 316 are closer to the center of the object carrier box 304 than the porous plate 312. A closing plate 317 is inserted into the movable notches 316. Fig.13As shown, a closing spring 318 is connected between the inner end of the closing plate 317 and the inner end of the movable slot 316. In a natural state, the closing spring 318 is in a compressed state. Under the thrust of the closing spring 318, the two closing plates 317 abut against each other. At this time, due to the shielding effect of the closing plate 317, the sand particles will not pass through the porous plate 312.

[0049] Furthermore, an electromagnet 319 is provided at the inner end of the movable notch 316. Fig.13 As shown, the closing plate 317 is made of iron material, and two conductive pillars 320 are provided on one end of the cover plate 308 and the left and right sides and the bottom side of one end of the object box 304. The conductive pillars 320 are copper pillars. The two leads of the electromagnet 319 are respectively connected to the corresponding two conductive pillars 320; the outer surface of the vertical plate 303 is also provided with a power supply 400, and the inner surface of the vertical plate 303 is provided with two conductive contacts 321, which are made of copper sheets. The two conductive contacts 321 are respectively connected to the positive and negative electrodes of the power supply 400. The negative pole is connected, and in the natural state, the two conductive contacts 321 are respectively in contact with the two conductive columns 320 located on the bottom side, and when the electromagnet 319 is in the energized state, the two closed plates 317 are attracted by the electromagnet 319 and are in the expanded state; that is, when the electromagnet 319 is energized, the attraction of the electromagnet 319 on the closed plate 317 is greater than the thrust applied by the closed spring 318 to the closed plate 317, and therefore the closed plate 317 can be attracted to expand, thereby exposing the porous plate 312 located on the bottom side.

[0050] It is worth mentioning that when the left and right side walls and the bottom wall of the carrier box 304 and the cover plate 308 are rotated to the bottom side position, the two electromagnets 319 on the bottom side can be energized, so that the two closing plates 317 on the bottom side can be unfolded, so that the sand particles shaken off the casting can only pass through the porous plate 312 on the bottom side; in addition, after the carrier box 304 rotates a quarter of a circle, since the porous plate 312 just on the bottom side will move to the side and be blocked by the closing plate 317, the sand particles attached to the porous plate 312 on the side that have not fallen off will also be blocked by the closing plate 317 and will not fall back onto the casting, thereby helping to improve the sand stripping efficiency of the casting.

[0051] On the other hand, a sliding inclined plate 108 is provided inside the vibration box 100. Figure 6 As shown, the two ends of the sliding material inclined plate 108 pass through the two penetration holes 106 respectively and are fixedly connected to the inner wall of the vibration box 100, and the sliding material inclined plate 108 is also located on the inner side of the conveyor belt 200. Specifically in this embodiment, the sliding material inclined plate 108 is in a posture of low front and high back, and the sand particles dropped from the carrying mechanism 300 on the sliding material inclined plate 108 will directly fall onto the sliding material inclined plate 108, and finally the sand particles will enter the hidden cavity 105 along the sliding material inclined plate 108, and finally fall into the collecting bucket 102.

[0052] Specifically, a first magnetic block 322 is disposed on the inner side of the top of the object carrying box 304, and a second magnetic block 323 is disposed on one end of the cover plate 308. Figure 3 As shown, the magnetic poles of the facing ends of the first magnetic block 322 and the second magnetic block 323 are opposite. When the first magnetic block 322 and the second magnetic block 323 are attracted to each other, the cover 308 completely covers the carrier box 304. A guide column 324 is also provided on the top surface of the cover 308 and located near the second magnetic block 323. An arched discharge track 109 is provided inside the vibration box 100 and below the conveyor belt 200. The discharge track 109 is fixedly connected to an inner side wall of the vibration box 100. A guide groove 110 is provided on the upper surface of the discharge track 109. When the carrier mechanism 300 moves to the top of the discharge track 109, The guide column 324 is movably embedded in the guide groove 110, and when the guide column 324 moves to the middle position of the discharge track 109, the cover 308 is fully unfolded; and at this time, the opening of the carrier box 304 is facing downward, so the castings in the carrier box 304 can fall down completely; in addition, an unfolding opening 111 is also opened through one side wall of the vibration box 100. When the guide column 324 is located in the guide groove 110 and the cover 308 slides to one side, one end of the cover 308 can pass through the unfolding opening 111 and extend to the outside of the vibration box 100. Therefore, the function of the unfolding opening 111 is to reserve space for the cover 308 to slide outward.

[0053] More specifically, a discharge hopper 112 is further provided inside the vibration box 100. A discharge port 114 for the discharge hopper 112 to pass through is formed on one side wall of the vibration box 100. The discharge hopper 112 is located below the discharge track 109. The discharge hopper 112 is tilted, and the tilt direction of the discharge hopper 112 is opposite to the tilt direction of the slide ramp 108; that is, in the present embodiment, the slide ramp 108 is high in the front and low in the back. When the cover plate 308 slides outward and the castings in the cargo box 304 fall downward, they may gradually fall on the discharge hopper 112 and finally be discharged to the outside of the vibration box 100, thereby automatically completing the unloading action.

[0054] Example 2: Please refer to Figure 1 - Fig.13 This embodiment also provides a device for stripping sand from the surface of a gear housing casting. The difference between this embodiment and the first embodiment is that a hinge seat 325 is provided at the middle section of the top surface of the bottom plate 301. Figure 5 As shown, the loading plate 302 is hinged to the hinge seat 325, and elastic members 326 are provided on both the front and rear sides of the top surface of the bottom plate 301. The elastic member 326 can be a spring, and the top end of the elastic member 326 is fixedly connected to the lower surface of the loading plate 302. In the natural state, the loading plate 302 is parallel to the bottom plate 301; that is, when the loading plate 302 is not subjected to external force, the loading plate 302 is parallel to the bottom plate 301.

[0055] Furthermore, four auxiliary rails 113 are provided on one side wall of the vibration box 100 and above the through opening 106. The four auxiliary rails 113 are spaced apart from the four racks 107. The auxiliary rail 113 is a four-section structure consisting of an entry section 1131, a lower horizontal section 1132, a transition section 1133 and an upper horizontal section 1134. Fig.10 As shown, the length directions of the upper horizontal section 1134 and the lower horizontal section 1132 are both kept consistent with the length direction of the conveyor belt 200; the carrier plate 302 is rotatably connected to one end of the auxiliary track 113 with a rolling shaft 327, the diameter of the rolling shaft 327 is smaller than the internal width of the auxiliary track 113, and in a natural state, the position height of the rolling shaft 327 is consistent with the height of the starting end of the entry section 1131, when the carrier mechanism 300 moves to the position of the auxiliary track 113, the rolling shaft 327 can enter the auxiliary track 113, when the rolling shaft 327 is located in the lower horizontal section 1132, the carrier plate 302 is in a low front and high back posture, and when the rolling shaft 327 is located in the upper horizontal section 1134, the carrier plate 302 is in a high front and low back posture. That is, when the carrier mechanism 300 moves to the position of the auxiliary track 113, the rolling shaft 327 can roll along the auxiliary track 113, and the carrier plate 302 can successively maintain tilt postures at different angles, which is further conducive to different parts of the casting facing downward, so that the sand particles in the casting can be fully peeled off.

[0056] Embodiment 3: This embodiment provides a method for stripping sand grains from the surface of a gear box casting, which is applicable to the device for stripping sand grains from the surface of a gear box casting in Embodiment 1 and Embodiment 2, and comprises the following steps:

[0057] Open the cover 308 above the carrying mechanism 300, and then place the gear box casting to be stripped of sand into the carrying box 304, with only one casting placed between two adjacent partitions 305; it should be noted that whenever the carrying mechanism 300 moves from the lower surface of the conveyor belt 200 to the upper surface, the staff can manually open the cover 308 to place the casting.

[0058] After closing the cover plate 308, the object-carrying mechanism 300 rotates along the direction of the conveyor belt 200, and the vibration motor 103 drives the vibration box 100 to vibrate at a high frequency, so that the casting in the object-carrying box 304 also shakes continuously, and the sand particles on the surface thereof are shaken off;

[0059] When the carrier mechanism 300 moves to the position of the rack 107, the carrier box 304 rotates 90° so that the other side of the casting faces downward. After the carrier mechanism 300 passes through four racks 107, the carrier box 304 rotates one circle. It should be noted that each time the carrier mechanism 300 passes through the rack 107, the carrier box 304 can rotate 90° so that different sides of the casting face downward, which helps to shake off the sand in the dead corners inside the casting. In addition, each time the carrier mechanism 300 passes through the rack 107 and when the carrier box 304 remains stable, the two closing plates 317 located on the bottom side of the carrier box 304 are in an expanded state, while the closing plates 317 at other positions are in a closed state, so that the sand only passes through the porous plate 312 at the bottom side, while preventing the sand on the porous plates 312 at other positions from falling back into the casting.

[0060] The sand particles shaken off the casting pass through the porous plate 312 and fall into the collecting bucket 102, and finally the casting in the carrier box 304 is taken out, and the sand stripping work is completed; it should be noted that when the carrier mechanism 300 moves to the lower surface of the conveyor belt 200 and the carrier mechanism 300 moves to the top of the discharge track 109, the guide column 324 can slide along the guide groove 110, so that the cover plate 308 can be automatically unfolded, and when the cover plate 308 is unfolded, the casting in the carrier box 304 can automatically fall onto the discharge bucket 112 and finally be discharged from the vibration box 100.

[0061] It is worth mentioning that, after the object-carrying mechanism 300 passes through the discharge track 109 , the cover plate 308 can be closed again due to the mutual attraction between the first magnetic block 322 and the second magnetic block 323 .

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for stripping sand from the surface of a gear housing casting, comprising a vibration box (100), a collecting bucket (102) being provided at the bottom of the vibration box (100), a vibration motor (103) being fixedly provided on the outer surface of the collecting bucket (102), and a supporting leg (104) being elastically connected to the bottom of the vibration box (100) via a vibration spring (101), characterized in that: The front and rear side walls of the vibration box (100) are each provided with a hidden cavity (105), the hidden cavity (105) is communicated with the interior of the collection bucket (102), the front and rear side walls of the vibration box (100) are symmetrically provided with through openings (106) communicated with the hidden cavity (105), a conveyor belt (200) is further provided inside the hidden cavity (105) and at a position directly opposite to the through opening (106), and the two conveyor belts (200) are symmetrically distributed; A plurality of object-carrying mechanisms (300) are arranged inside the vibration box (100), and the object-carrying mechanisms (300) include a bottom plate (301), the length direction of the bottom plate (301) is perpendicular to the length direction of the conveyor belt (200), the two ends of the bottom plate (301) are respectively fixedly connected to the outer surfaces of the two conveyor belts (200), the top surface of the bottom plate (301) is provided with an object-carrying plate (302), and vertical plates (302) are symmetrically arranged on the front and rear sides of the top of the object-carrying plate (302). 03), a carrying box (304) is provided between the two vertical plates (303), the carrying box (304) is a rectangular hollow structure without a cover, a plurality of partitions (305) are evenly spaced inside the carrying box (304) along its length direction, a rotating shaft (306) is provided at both the front and rear ends of the carrying box (304), the rotating shaft (306) passes through the vertical plate (303) and rotates with it, and a driven gear (307) is fixedly sleeved on the end of the rotating shaft (306); The top surface of the cargo box (304) is slidably connected to a cover plate (308) along its length direction; the cover plate (308) and the left and right side walls and the bottom wall of the cargo box (304) are all penetrated by strip openings (311); a porous plate (312) is arranged in the strip opening (311); four racks (107) are evenly spaced on the front and rear side walls inside the vibration box (100) and above the through opening (106); when the cargo carrying mechanism (300) moves to the position of the rack (107), the driven gear (307) meshes with the rack (107), and when the cargo carrying mechanism (300) passes the rack (107), the cargo carrying box (304) rotates a quarter of a turn.

2. The device for removing sand from the surface of a gear housing casting according to claim 1, characterized in that: A driven disc (313) is fixedly mounted on the outer side of the rotating shaft (306), and the driven disc (313) is located between the vertical plate (303) and the driven gear (307). A spring ball (314) is provided on the side of the driven disc (313) facing the vertical plate (303). Four positioning slots (315) are evenly arranged on the outer surface of the vertical plate (303) along a circular direction. In a natural state, the steel ball of the spring ball (314) is embedded in the positioning slot (315).

3. The device for removing sand from the surface of a gear housing casting according to claim 1, characterized in that: Movable notches (316) are symmetrically provided on both sides of the strip-shaped opening (311), a closing plate (317) is inserted into the movable notch (316), a closing spring (318) is connected between the inner end of the closing plate (317) and the inner end of the movable notch (316), and in a natural state, the two closing plates (317) abut against each other.

4. The device for removing sand from the surface of a gear housing casting according to claim 3, characterized in that: An electromagnet (319) is provided at the inner end of the movable notch (316); the closing plate (317) is made of iron material; two conductive posts (320) are provided on one end of the cover plate (308) and on the left and right sides and the bottom side of one end of the cargo box (304); two leads of the electromagnet (319) are respectively connected to the corresponding two conductive posts (320); a power source (400) is also provided on the outer surface of the vertical plate (303); two conductive contacts (321) are provided on the inner surface of the vertical plate (303); the two conductive contacts (321) are respectively connected to the positive and negative poles of the power source (400); in a natural state, the two conductive contacts (321) are respectively in contact with the two conductive posts (320) located on the bottom side; and when the electromagnet (319) is in a powered state, the two closing plates (317) are attracted by the electromagnet (319) and are in an unfolded state.

5. The device for removing sand from the surface of a gear housing casting according to claim 1, characterized in that: A sliding inclined plate (108) is provided inside the vibration box (100), and the two ends of the sliding inclined plate (108) respectively pass through two penetration holes (106) and are fixedly connected to the inner wall of the vibration box (100), and the sliding inclined plate (108) is also located on the inner side of the conveyor belt (200).

6. The device for removing sand from the surface of a gear housing casting according to claim 5, characterized in that: A first magnetic block (322) is provided on the inner side of the top of the object carrying box (304), and a second magnetic block (323) is provided on one end of the cover plate (308). When the first magnetic block (322) and the second magnetic block (323) are attracted to each other, the cover plate (308) completely covers the object carrying box (304). A guide column (324) is provided on the top surface of the cover plate (308) and at a position close to the second magnetic block (323). The guide column (324) is provided inside the vibration box (100) and at a position below the conveyor belt (200). An arch-shaped discharge track (109) is provided, the discharge track (109) is fixedly connected to an inner side wall of the vibration box (100), and a guide groove (110) is provided on the upper surface of the discharge track (109). When the carrier mechanism (300) moves to the top of the discharge track (109), the guide column (324) is movably embedded in the guide groove (110), and when the guide column (324) moves to the middle section of the discharge track (109), the cover plate (308) is fully unfolded.

7. The device for removing sand from the surface of a gear housing casting according to claim 6, characterized in that: A discharge hopper (112) is also provided inside the vibration box (100), and a discharge port (114) is provided through one side wall of the vibration box (100) for the discharge hopper (112) to pass through. The discharge hopper (112) is located below the discharge track (109), and the discharge hopper (112) is tilted, and the tilt direction of the discharge hopper (112) is opposite to the tilt direction of the sliding inclined plate (108).

8. The device for removing sand from the surface of a gear housing casting according to claim 1, characterized in that: A hinge seat (325) is provided at the middle section of the top surface of the bottom plate (301), and the loading plate (302) is hingedly connected to the hinge seat (325). Elastic members (326) are provided on both the front and rear sides of the top surface of the bottom plate (301), and the top end of the elastic member (326) is fixedly connected to the lower surface of the loading plate (302). In a natural state, the loading plate (302) is parallel to the bottom plate (301).

9. The device for removing sand from the surface of a gear housing casting according to claim 8, characterized in that: Four auxiliary rails (113) are also provided on one side wall of the vibration box (100) and above the through opening (106). The four auxiliary rails (113) are spaced apart from the four racks (107). The auxiliary rail (113) is a four-section structure consisting of an entry section (1131), a lower horizontal section (1132), a transition section (1133) and an upper horizontal section (1134). The loading plate (302) faces the auxiliary rail (113). One end of the carrier plate (300) is rotatably connected to a rolling shaft (327); when the carrier mechanism (300) moves to the position of the auxiliary track (113), the rolling shaft (327) can enter the auxiliary track (113); when the rolling shaft (327) is located inside the lower horizontal section (1132), the carrier plate (302) is in a posture with a lower front and a higher rear; when the rolling shaft (327) is located inside the upper horizontal section (1134), the carrier plate (302) is in a posture with a higher front and a lower rear.

10. A method for stripping sand from the surface of a gearbox casting, applicable to the device for stripping sand from the surface of a gearbox casting according to any one of claims 1 to 9, characterized in that: The steps include: Open the cover plate (308) above the loading mechanism (300), and then place the gearbox casting to be stripped of sand into the loading box (304), with only one casting placed between two adjacent partitions (305); After the cover plate (308) is closed, the object-carrying mechanism (300) rotates in the direction of the conveyor belt (200), and the vibration motor (103) drives the vibration box (100) to vibrate at a high frequency, so that the casting in the object-carrying box (304) also shakes continuously, so that the sand particles on the surface thereof fall off; When the object-carrying mechanism (300) moves to the position of the rack (107), the object-carrying box (304) rotates 90 degrees, so that the other side of the casting faces downward. After the object-carrying mechanism (300) passes through four racks (107), the object-carrying box (304) rotates one circle; The sand particles shaken off from the casting pass through the porous plate (312) and fall into the collecting bucket (102), and finally the casting in the carrying box (304) is taken out, and the sand particle stripping work is completed.

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