Grinding device for automobile three-way catalyst raw materials and using method

Abstract

The invention relates to the technical field of three-way catalyst raw material preparation devices, and particularly discloses a grinding device for automobile three-way catalyst raw materials and a using method.The grinding device comprises a grinding barrel and a barrel cover, the barrel cover is coaxially and rotationally connected with a rotating shaft and provided with a driving structure, a grinding structure is arranged at the bottom end of the rotating shaft, and a grinding disc is arranged in the grinding barrel below the rotating shaft; the grinding structure comprises a plurality of supporting rods fixedly connected to the rotating shaft in the circumferential direction, sleeves coaxially and rotatably connected to the outer portions of the supporting rods and grinding rollers coaxially arranged outside the sleeves, driven input bevel gears are fixedly connected to the sleeves, and driving input bevel gears meshed with the driven input bevel gears are fixedly connected to the positions, above the sleeves, in the grinding barrel; the grinding rollers are in sliding connection with the sleeve in the axial direction, a plurality of reciprocating structures used for pushing the grinding rollers to slide in a reciprocating mode in the axial direction are further arranged on the rotating shaft in the circumferential direction, and the problems that the grinding rollers of a traditional pulverizer can only rotate around the center main shaft, and waste three-way catalytic materials cannot be ground in a multi-direction and multi-angle mode are solved.

Description

Technical Field

[0001] This application relates to the technical field of ternary catalyst raw material preparation devices, and specifically discloses a grinding device for automotive ternary catalyst raw materials and its usage method. Background Art

[0002] Three-way catalysis is an off-vehicle purification device in the automotive exhaust system. When high-temperature automotive exhaust passes through the purification device, the purification agent in the three-way catalytic converter enhances the activity of carbon monoxide gas, hydrocarbon gas, and nitrogen oxide gas, prompting them to undergo a certain oxidation-reduction reaction, converting the three harmful gases into harmless gases and completing the purification of automotive exhaust.

[0003] In the production and preparation process of ternary catalysts, they can be obtained through secondary treatment of waste ternary catalysts. During the treatment of waste ternary catalysts, it is first necessary to crush the waste ternary catalysts. In the prior art, the crushing of waste ternary catalysts is usually completed by a crusher. A rolling roller is installed in the crusher, and the ternary catalyst is crushed by the rolling roller.

[0004] The rolling rollers of existing crushers usually can only move in one direction and can only rotate around the central main shaft, and cannot achieve multi-directional and multi-angle rolling of waste ternary catalysts.

[0005] The present invention provides a grinding device for automotive ternary catalyst raw materials and its usage method to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the problem that the rolling rollers of traditional crushers can only rotate around the central main shaft and cannot achieve multi-directional and multi-angle rolling of waste ternary catalysts.

[0007] To achieve the above objective, the basic solution of the present invention provides a grinding device for automotive ternary catalyst raw materials, including a grinding barrel and a barrel cover. The barrel cover is coaxially and rotationally connected to a rotating shaft, and a driving structure for driving the rotating shaft to rotate is provided on the barrel cover. The bottom end of the rotating shaft extends into the grinding barrel and is provided with a grinding structure. A grinding disc is provided in the grinding barrel below the rotating shaft;

[0008] The grinding structure includes a plurality of support rods circumferentially fixed on the rotating shaft, a sleeve coaxially and rotationally connected to the outside of the support rods, and a rolling roller coaxially provided outside the sleeve. Driven input bevel gears are fixedly connected to the sleeves. An active input bevel gear meshing with the driven input bevel gears is fixedly connected in the grinding barrel above the sleeves. The rolling roller is slidably connected to the sleeve along the axial direction;

[0009] A plurality of reciprocating structures for pushing the rolling roller to reciprocate axially are also circumferentially provided on the rotating shaft;

[0010] A barrel opening is coaxially provided at the bottom end of the grinding barrel. A discharge door that can only open downward of the grinding disc is provided on the grinding disc, and a feed inlet is provided on the barrel cover.

[0011] Furthermore, the reciprocating structure includes a cam rotatably connected to the free end of the support rod, a connecting member provided between the cam and the rolling roller and sliding under the extrusion of the cam, and an ejecting structure provided on the support rod for resetting the connecting member outward and a driving mechanism for driving the cam to move. An annular belt that wraps the reciprocating structure protrudes outward from the grinding barrel below the driving input bevel gear, and the annular belt is located above the grinding disc.

[0012] Furthermore, a receiving groove is axially opened at the free end of the support rod, and a connecting shaft perpendicular to the axial direction and for installing the cam is rotatably connected in the receiving groove, and the driving mechanism drives the connecting shaft to rotate.

[0013] Furthermore, the bottom end of the connecting shaft extends below the support rod. The driving mechanism includes a driving output bevel gear coaxially fixed to the end of the sleeve away from the rotating shaft, and a driven output bevel gear coaxially fixed to the bottom end of the connecting shaft, and the driving output bevel gear meshes with the driven output bevel gear.

[0014] Furthermore, the connecting member includes an annular portion coaxially sliding on the sleeve, a driving connecting portion sliding in the receiving groove, and a driven connecting portion connecting between the annular portion and the driving connecting portion. The ejecting structure is provided in the receiving groove and is used to eject the driving connecting portion outward to fit the cam, and the annular portion is rotatably connected to the end of the adjacent rolling roller.

[0015] Furthermore, a T-shaped ring platform is coaxially fixed to the side of the annular portion facing the rolling roller, and a T-shaped ring groove for the T-shaped ring platform to be inserted and slide is coaxially opened at the end of the rolling roller adjacent to the annular portion.

[0016] Furthermore, the ejecting structure includes a guide rod fixed in the receiving groove and having an axial direction parallel to the axial direction of the support rod, and a return spring fixed between the receiving groove and the driving connecting portion and sleeved outside the guide rod.

[0017] Furthermore, a ball platform is further provided on the side of the driving connecting portion facing the cam, and an annular ball groove for the ball platform to engage and enter is circumferentially opened on the outer wall of the cam.

[0018] Furthermore, the grinding disc slides vertically in the grinding barrel, and a lifting structure for driving the grinding disc to lift vertically is provided circumferentially on the grinding barrel.

[0019] The basic solution of the present invention also provides a usage method of the grinding device for automotive three-way catalyst raw materials according to the above, including the following steps:

[0020] Step A1: Open the feed inlet, put in the discarded ternary catalytic waste, close the discharge door, and after putting it in, drive the rotating shaft to rotate by the driving structure;

[0021] Step A2: The rotating shaft drives the support rod to rotate around the axis of the rotating shaft, drives the sleeve to rotate through the meshing of the driven input bevel gear and the driving bevel gear, and then drives the rolling roller to rotate;

[0022] Step A4: During the rotation of the rolling roller, the rolling roller gradually realizes the fine crushing and grinding of the ternary catalytic waste, and starts the reciprocating structure to push the rolling roller to slide back and forth along the axial direction;

[0023] Step A5: The rolling roller continuously grinds the ternary catalytic waste in multiple directions until the ternary catalyst raw material is obtained.

[0024] The principle and effect of this solution are as follows:

[0025] 1. Compared with the prior art, the sleeve of the present invention is driven to rotate through the meshing of the driving input bevel gear and the driven input bevel gear. During the rotation of the sleeve, the rolling roller can not only rotate synchronously with the sleeve, but also slide back and forth along the axial direction on the sleeve through the reciprocating structure, realizing the fine crushing and rolling of the ternary catalytic waste in multiple directions, increasing the rolling strength and accelerating the grinding speed, and solving the problem that the rolling roller of the traditional crusher can only rotate around the central main shaft and cannot realize the multi-directional and multi-angle rolling of the waste ternary catalyst.

[0026] 2. Compared with the prior art, the reciprocating structure of the present invention is driven by the sleeve input, continuously drives the rolling roller to slide back and forth along the axial direction as the sleeve rotates, realizes multi-stage transmission, and can move synchronously with the rotation of the rolling roller during the grinding process.

[0027] 3. Compared with the prior art, the grinding disc of the present invention can be lifted. During the rising process with the grinding disc, the rolling roller can not only realize the extrusion and fine crushing of the ternary catalytic waste, but also apply a force to the ternary catalytic waste along the rotation direction and a force along the sliding direction. When the grinding disc rises to the top, the rolling roller fits with the top surface of the grinding disc. At this time, the rolling roller further rolls the finely crushed ternary catalytic waste in multiple directions. The reciprocating sliding of the ternary catalytic waste along the axial direction of the sleeve can increase the rolling strength and accelerate the grinding speed. At the same time, the liftable grinding disc can realize the effect of gradually fine crushing and rolling the ternary catalytic waste during the rising process. Description of the Drawings

[0028] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0029] Figure 1 Fig. shows a schematic diagram of a grinding device for automotive three-way catalyst raw materials proposed in an embodiment of the present application;

[0030] Figure 2 Fig. shows a schematic diagram of a grinding device for automotive three-way catalyst raw materials proposed in an embodiment of the present application;

[0031] Figure 3 Fig. shows a partial schematic diagram of a grinding device for automotive three-way catalyst raw materials proposed in an embodiment of the present application;

[0032] Figure 4 Fig. shows a partial cross-sectional view of a grinding device for automotive three-way catalyst raw materials proposed in an embodiment of the present application. Detailed implementation manners

[0033] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, will describe in detail the specific implementation manners, structures, features, and effects of the present invention as follows.

[0034] The reference numerals in the accompanying drawings of the specification include: barrel cover 1, rotating shaft 2, driving motor 3, annular belt 4, air cylinder 5, connecting plate 6, grinding disc 7, rolling roller 8, support rod 9, driven output bevel gear 10, cam 11, connecting member 12, driving output bevel gear 13, driving input bevel gear 14, driven input bevel gear 15, sleeve 16.

[0035] A grinding device for automotive three-way catalyst raw materials, as shown in the embodiment Figures 1 to 4 as follows:

[0036] It includes a grinding barrel and a barrel cover 1.

[0037] The bottom end of the grinding barrel is coaxially provided with a barrel opening. A grinding disc 7 is installed inside the grinding barrel, and a discharge door that can only open downward to the bottom of the grinding barrel and below the grinding disc 7 is installed on the grinding disc 7. An inlet is opened on the barrel cover 1. A rotatable rotating shaft 2 is coaxially installed on the barrel cover 1, and a driving structure for driving the rotation of the rotating shaft 2 is also installed on the barrel cover 1. The top end of the rotating shaft 2 extends out of the barrel cover 1. The driving structure includes a driving motor 3 and a belt drive mechanism engaged between the output shaft of the driving motor 3 and the top end of the rotating shaft 2. A transmission box for covering the rotating shaft 2 and the belt drive mechanism is installed on the barrel cover 1, and the driving motor 3 is installed on the transmission box.

[0038] The bottom end of the rotating shaft 2 extends into the grinding barrel and is equipped with a grinding structure. The grinding structure includes four support rods 9 circumferentially fixed on the rotating shaft 2, sleeves 16 respectively coaxially installed on the support rods 9 and rotatable, and rolling rollers 8 respectively coaxially installed outside the sleeves 16. The rolling rollers 8 can slide on the sleeves 16 along the axial direction of the sleeves 16, and the rolling rollers 8 rotate synchronously with the sleeves 16. Specifically, there are two guiding chutes along the axial direction on the outer wall of the sleeve 16, and two guiding sliders respectively installed in the guiding chutes are formed on the inner side of the rolling roller 8, and the length of the guiding chute is longer than the length of the guiding slider.

[0039] As Figure 2 、 Figure 3 and Figure 4 shown, a driven input bevel gear 15 is fixedly installed on each of the sleeves 16 on the right side of the rolling roller 8, and a driving input bevel gear 14 is fixedly installed in the grinding barrel above the sleeve 16. The driving bevel gear meshes with the driven input bevel gear 15.

[0040] In this embodiment, a plurality of reciprocating structures for pushing the rolling roller 8 to reciprocate along the axial direction are also circumferentially installed on the rotating shaft 2. The reciprocating structure includes a cam 11 installed at the free end of the support rod 9 and rotatable, a connecting member 12 installed between the cam 11 and the rolling roller 8 and sliding under the extrusion of the cam 11, and an ejecting structure installed on the support rod 9 for outward reset connection and a driving mechanism for driving the cam 11 to move.

[0041] Specifically, as Figure 3 shown, a receiving groove is axially formed at the free end of the support rod 9, a rotatable connecting shaft is installed in the receiving groove, the axial direction of the connecting shaft is perpendicular to the axial direction of the support rod 9, and the cam 11 is installed on the connecting shaft in the receiving groove. And, the connecting shaft is driven by a driving mechanism.

[0042] Furthermore, the bottom end of the connecting shaft extends below the support rod 9. The driving mechanism includes a driving output bevel gear 13 coaxially and fixedly installed at the right end of the sleeve 16, and a driven output bevel gear 10 coaxially fixed at the bottom end of the connecting shaft. The driving output bevel gear 13 meshes with the driven output bevel gear 10.

[0043] In this embodiment, the connecting member 12 includes an annular portion mounted on a sleeve 16 between the rolling roller 8 and the driven input bevel gear 15, a driving connecting portion mounted in the receiving groove and sliding along the axis direction of the support rod 9, and a driven connecting portion fixedly installed between the driving connecting portion and the annular portion. Specifically, the annular portion only fits on the outer wall of the sleeve 16 and can slide relative to the sleeve 16. On the left side of the annular portion, that is, on the side facing the rolling roller 8, a T-shaped ring platform coaxial with the rolling roller 8 is formed. On the right end of the rolling roller 8, that is, on the end adjacent to the annular portion, a T-shaped ring groove for the T-shaped ring platform to be inserted and slide is coaxially opened. Limiting sliders are formed on the upper and lower end faces of the driving connecting portion, and limiting sliding grooves for the limiting sliders to slide therein are opened on the upper and lower inner side end faces of the receiving groove.

[0044] Moreover, a ball platform is integrally formed on the side of the driving connecting portion facing the cam 11, and an annular ball groove for the ball platform to engage and enter is circumferentially opened on the outer wall of the cam 11.

[0045] The ejecting structure is installed in the receiving groove and is used to eject the driving connecting portion outward, that is, toward the cam 11 until it fits against the cam 11. Specifically, the ejecting structure includes a guide rod fixedly installed in the receiving groove and a return spring fixed between the receiving groove and the driving connecting portion. The axis direction of the guide rod is parallel to the axis direction of the support rod 9, and the return spring is sleeved outside the guide rod.

[0046] In this embodiment, as Figure 1 and Figure 2 shown, lifting structures for driving the grinding disc 7 to vertically lift and lower are installed on both sides of the grinding barrel. Lifting vertical grooves are respectively opened on both sides of the grinding barrel. Connecting plates 6 are fixedly installed on both sides of the grinding disc 7 and respectively extend out of the grinding barrel through the lifting vertical grooves, and the connecting plates 6 can vertically slide in the lifting vertical grooves. Further, isolation plates that fit against the inner wall of the grinding barrel are fixedly installed on the upper and lower end faces of the connecting plates 6. The lifting structures include support plates fixed on both sides of the grinding disc 7 and cylinders 5 fixed on the support plates. The output ends of the cylinders 5 are respectively fixed on the connecting plates 6.

[0047] Moreover, in this embodiment, as Figure 1 shown, the grinding barrel bulges outward below the driving input bevel gear 14 to form an annular belt 4 that wraps the reciprocating structure, and the annular belt 4 is located above the lowest ends of the grinding disc 7 and the rolling roller 8. And, as Figure 2 shown, the connecting members 12 are all installed on the right side of the support rod 9. Further, an isolation ring plate that isolates the annular belt 4 from the inner cavity of the grinding barrel is installed in the grinding barrel. The isolation ring plate can rotate around the axis of the grinding barrel. A hole one for the sleeve 16 to pass through is opened on the isolation ring plate, and a hole two for the driven connecting portion to pass through is also opened on the isolation ring plate. The isolation ring plate rotates synchronously with the rotation of the support rod 9.

[0048] The present invention also provides a method for using a grinding device for the ternary catalyst raw material described above, comprising the following steps:

[0049] Step A1: Lower the height of the output end of the lowering cylinder 5 to reduce the height of the grinding disc 7;

[0050] Step A2: After the grinding disc 7 is lowered to a predetermined height, open the feed port, put in the discarded ternary catalytic waste, close the discharge door, and after putting it in, close the feed port and start the drive motor 3;

[0051] Step A3: The rotation of the drive motor 3 drives the synchronous rotation of the rotating shaft 2, and then drives the support rod 9 to rotate around the axis of the rotating shaft 2. The sleeve 16 is driven to rotate through the meshing of the driven input bevel gear 15 and the driving bevel gear, and then the rolling roller 8 is driven to rotate;

[0052] Step A4: During the rotation of the rolling roller 8, the output end of the cylinder 5 gradually and slowly rises, so that the rotating rolling roller 8 contacts the ternary catalytic waste above the grinding disc 7, and the rolling roller 8 gradually realizes the fine crushing of the ternary catalytic waste;

[0053] Step A5: The output end of the cylinder 5 continues to rise until the grinding disc 7 rises to the top, and the height of the grinding disc 7 is maintained, so that the rolling roller 8 continuously grinds the ternary catalytic waste until the ternary catalyst raw material is obtained.

[0054] During the implementation of Step A3, the rotation of the sleeve 16 will also drive the synchronous rotation of the driving output bevel gear 13, and drive the rotation of the cam 11 through the meshing of the driving output bevel gear 13 and the driven output bevel gear 10. The cam 11 rotates to squeeze the connecting member 12, and the annular part of the connecting member 12 synchronously squeezes the rolling roller 8. The connecting member 12 is reset through the return spring and the connection with the cam 11, and then drives the rolling roller 8 to reset. With the continuous rotation of the sleeve 16, the connecting member 12 and the rolling roller 8 continuously reciprocate, and the rolling roller 8 continuously reciprocates and slides on the sleeve 16. Therefore, during the rising process with the grinding disc 7, the rolling roller 8 can not only squeeze and finely crush the ternary catalytic waste, but also apply a force to the ternary catalytic waste in the rotation direction and a force in the sliding direction.

[0055] When the grinding disc 7 rises to the top, the rolling roller 8 fits with the top surface of the grinding disc 7. At this time, the rolling roller 8 further rolls the finely crushed ternary catalytic waste in multiple directions. The reciprocating sliding of the ternary catalytic waste along the axis direction of the sleeve 16 can increase the rolling strength and accelerate the grinding speed.

[0056] The present invention can not only achieve the effect of gradually crushing and rolling the three-way catalytic waste by the rising of the grinding disc 7, but also realize the multi-directional crushing and rolling of the three-way catalytic waste through the sliding of the rolling roller 8 along the axis direction of the sleeve 16, increase the rolling strength and accelerate the grinding speed.

[0057] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. Grinding device for automotive three-way catalyst raw materials, characterized in that, It includes a grinding barrel and a barrel cover. The barrel cover is coaxially and rotatably connected with a rotating shaft. A driving structure for driving the rotation of the rotating shaft is provided on the barrel cover. The bottom end of the rotating shaft extends into the grinding barrel and is provided with a grinding structure. A grinding disc is arranged in the grinding barrel below the rotating shaft. The grinding structure includes several support rods circumferentially fixed on the rotating shaft, a sleeve coaxially and rotatably connected outside the support rods, and a rolling roller coaxially arranged outside the sleeve. Driven input bevel gears are fixedly connected to the sleeves. A driving input bevel gear meshing with the driven input bevel gears is fixedly connected in the grinding barrel above the sleeves. The rolling roller is slidably connected with the sleeve along the axial direction. Several reciprocating structures for pushing the rolling roller to reciprocate axially are also circumferentially arranged on the rotating shaft. A barrel opening is coaxially opened at the bottom end of the grinding barrel. A discharge door that can only open downward of the grinding disc is provided on the grinding disc. A feed inlet is opened on the barrel cover.

2. The grinding device for automotive three-way catalyst raw materials according to claim 1, characterized in that, The reciprocating structure includes a cam rotatably connected to the free end of the support rod, a connecting piece arranged between the cam and the rolling roller and sliding under the extrusion of the cam, an ejecting structure arranged on the support rod for resetting the connecting piece outward, and a driving mechanism for driving the movement of the cam. An annular belt for wrapping the reciprocating structure bulges outward from the grinding barrel below the driving input bevel gear. The annular belt is located above the grinding disc.

3. The grinding device for automotive three-way catalyst raw materials according to claim 2, characterized in that, A receiving groove is axially opened at the free end of the support rod. A connecting shaft perpendicular to the axial direction and used for installing the cam is rotatably connected in the receiving groove. The driving mechanism drives the connecting shaft to rotate.

4. The grinding device for automotive three-way catalyst raw materials according to claim 3, characterized in that, The bottom end of the connecting shaft extends below the support rod. The driving mechanism includes a driving output bevel gear coaxially fixed to the end of the sleeve away from the rotating shaft, and a driven output bevel gear coaxially fixed to the bottom end of the connecting shaft. The driving output bevel gear meshes with the driven output bevel gear.

5. The grinding device for automotive three-way catalyst raw materials according to claim 3, characterized in that, The connecting piece includes an annular part coaxially slidably connected to the sleeve, a driving connecting part slidably connected in the receiving groove, and a driven connecting part connecting between the annular part and the driving connecting part. The ejecting structure is arranged in the receiving groove and used for ejecting the driving connecting part outward to fit the cam. The annular part is rotatably connected to the end of the adjacent rolling roller.

6. The grinding device for the raw material of automotive three-way catalyst according to claim 5, characterized in that, A T-shaped ring platform is coaxially fixed to the side of the annular part facing the rolling roller. A T-shaped ring groove for the T-shaped ring platform to be placed and slide is coaxially opened at the end of the rolling roller adjacent to the annular part.

7. The grinding device for the raw material of the automotive three-way catalyst according to claim 5, characterized in that, The ejecting structure includes a guide rod fixedly connected in the receiving groove and having an axial direction parallel to the axial direction of the support rod, and a return spring fixedly connected between the receiving groove and the driving connecting part and sleeved outside the guide rod.

8. The grinding device for the raw material of automotive three-way catalyst according to claim 5, characterized in that, A ball table is further arranged on the side of the driving connecting part facing the cam. An annular ball groove for the ball table to engage and enter is circumferentially opened on the outer wall of the cam.

9. The grinding device for the raw material of automotive three-way catalyst according to claim 1, characterized in that, The grinding disc slides vertically in the grinding barrel. A lifting structure for driving the grinding disc to vertically lift and lower is arranged circumferentially on the grinding barrel.

10. The method of using the grinding device for the raw material of the automotive three-way catalyst according to claim 1, characterized in that, It includes the following steps: Step A1: Open the feed inlet, put in the discarded three-way catalytic waste, and close the discharge door. After putting in is completed, drive the rotating shaft to rotate by the driving structure. Step A2: The rotating shaft drives the support rod to rotate around the axis of the rotating shaft, drives the sleeve to rotate through the meshing of the driven input bevel gear and the driving bevel gear, and then drives the rolling roller to rotate. Step A4: During the rotation of the rolling roller, the rolling roller gradually achieves fine crushing and grinding of the three-way catalytic waste, and starts the reciprocating structure to push the rolling roller to slide reciprocally along the axial direction; Step A5: The rolling roller continuously grinds the three-way catalytic waste in multiple directions until the three-way catalyst raw material is obtained.

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