Polishing device

Abstract

A grinding device comprises a bottom plate, a motor is installed on the bottom plate, an output shaft of the motor is connected with a driving wheel, a rotating shaft is rotationally arranged on the bottom plate, a driven wheel is arranged at the lower end of the rotating shaft, the driving wheel and the driven wheel are in transmission through a belt, a grinding piece is arranged at the upper end of the rotating shaft, the grinding piece is sleeved with a grinding ring, and convex rings are arrayed on the periphery of the grinding ring in the axial direction of the grinding ring. The grinding ring and the protruding ring on the grinding ring can rotate under driving of the motor, and the inner wall of the grinding ring is ground through rotation. And meanwhile, the convex ring is located in the clamping groove so that the inner wall of the clamping groove can be ground through the convex ring, meanwhile, the inner wall of the crushing plate can be ground through the outer wall of the grinding ring, and during grinding, due to the fact that the grinding ring and the inner wall of the crushing plate are in a complete contact state, the grinding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting processing, in particular to a grinding device. Background Art

[0002] The crushing plate is a component installed on the crusher for material crushing. It is usually made by casting and has a roughly arc-shaped structure. Its outer wall is provided with multiple crushing teeth, and its inner side is formed with multiple slots, and it is also provided with multiple mounting holes. Since there will be a large number of sand holes and protrusions on its outer wall after the casting process, in addition to shot blasting, it is also necessary to grind its inner wall to improve the assembly accuracy. At present, the grinding is carried out by step grinding, and the outer wall of the grinding wheel and the inner wall of the crushing plate are tangent during grinding. This grinding method is easy to cause damage to the crushing plate, and the grinding efficiency is low. Utility Model Content

[0003] The utility model provides a grinding device to solve the above-mentioned deficiencies in the prior art, facilitate the grinding operation of the crushing plate, improve the grinding accuracy and efficiency, and has strong practicability.

[0004] In order to achieve the purpose of this utility model, the following technologies are proposed:

[0005] A grinding device includes a base plate, a motor is mounted on the base plate, a driving wheel is connected to the output shaft of the motor, a rotating shaft is rotatably provided on the base plate, a driven wheel is provided at the lower end of the rotating shaft, a belt is driven between the driving wheel and the driven wheel, a grinding piece is provided at the upper end of the rotating shaft, a grinding ring is sleeved on the grinding piece, a convex ring is arranged along the axial array of the outer periphery of the grinding ring, the grinding ring and the convex ring thereon can rotate under the drive of the motor, and the inner wall thereof can be grinded by rotation. At the same time, the convex ring is located in a slot, so that the inner wall of the slot can be grinded by the convex ring, and the inner wall of a crushing plate can be grinded by the outer wall of the grinding ring, and the grinding efficiency is improved because the grinding ring and the inner wall of the crushing plate are in a state of complete contact during grinding.

[0006] A pair of guide holes are provided on the bottom plate, and a movable rod is inserted into the guide holes. A movable outer plate is provided at the upper end of the movable rod. A pair of movable holes are provided at the upper and lower ends of the movable outer plate, respectively. A movable rod is inserted into the movable holes. A clamp is installed at the inner end of the movable rod at the same end. A movable plate is provided at the outer end of the movable rod at the same end. A screw rod is provided on the movable plate. The threads at both ends of the screw rod rotate in opposite directions. A middle seat is provided on the screw rod for rotation. The middle seat is installed on the movable outer plate. A rotating head is provided at the upper end of the screw rod. The movable plate can be driven to move by the rotation of the screw rod, and the upper and lower ends of the crushing plate are clamped by the clamp, and the stability during grinding is ensured by clamping.

[0007] Furthermore, the grinding piece includes a center column, and end plates are provided at the upper and lower ends of the center column, and a plurality of slots are provided on the end plates, and a grinding ring is sleeved on the end plates, and a plurality of cams are provided on the inner circumference of the grinding ring, and the cams are inserted into the slots, and the end plate at the lower end is connected to the upper end of the rotating shaft, and a connecting screw is inserted on the cams, and mounting rings are respectively installed at the upper and lower ends of the connecting screw, wherein a spline shaft is provided at the upper end of the rotating shaft, and the spline shaft is inserted into the end plates. The setting of the cams and slots can improve the stability and structural strength of the grinding ring during rotation, and this setting method is also convenient for replacing the grinding ring.

[0008] Furthermore, a rotating ring is installed on the mounting ring at the lower end, and a plurality of rollers are tangent to the outer circumference of the rotating ring. A mounting bottom ring is provided at the lower end of the roller, and the mounting bottom ring is installed on the bottom plate. The arrangement of the rollers and the rotating ring can ensure the stability of the rotation of the grinding ring.

[0009] Furthermore, a ring groove is provided on the roller, a clamping ring is provided on the outer periphery of the rotating ring, the outer periphery of the clamping ring is tangent to the peripheral side of the ring groove, and the clamping ring and the ring groove play a role in rotation limiting and supporting the grinding ring.

[0010] Furthermore, the screw rod is limited on the middle seat by a pin. In addition, limiting rings can be provided at both ends of the screw rod to limit the screw rod.

[0011] Furthermore, the inner wall of the movable outer plate is provided with a plurality of insertion rods, and the insertion rods are inserted into the mounting holes, so that the crushing plate can be prevented from moving during the grinding process.

[0012] The advantages of the above technical solution are:

[0013] The utility model facilitates the grinding operation of the crushing plate and improves the grinding efficiency and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0015] Figure 1 The three-dimensional structure of one embodiment is shown Figure 1 .

[0016] Figure 2 The three-dimensional structure of one embodiment is shown Figure 2 .

[0017] Figure 3 The three-dimensional structure of one embodiment is shown Figure 3 .

[0018] Figure 4 The three-dimensional structure of one embodiment is shown Figure 4 . DETAILED DESCRIPTION

[0019] like Figure 1~Figure 4 As shown, a grinding device includes a base plate 1, a motor 2 is installed on the base plate 1, the output shaft of the motor 2 is connected to a driving wheel 20, a rotating shaft 23 is rotatably provided on the base plate 1, a driven wheel 22 is provided at the lower end of the rotating shaft 23, the driving wheel 20 and the driven wheel 22 are driven by a belt 21, a grinding piece is provided at the upper end of the rotating shaft 23, a grinding ring 32 is sleeved on the grinding piece, and a convex ring 35 is arranged on the outer periphery of the grinding ring 32 along its axial direction. The grinding part includes a center column 3, and end plates 30 are provided at the upper and lower ends of the center column 3. The end plate 30 is provided with a plurality of grooves 31. A grinding ring 32 is sleeved on the end plate 30, and a plurality of protrusions 34 are provided on the inner circumference of the grinding ring 32. The protrusions 34 pass through the grooves 31. The end plate 30 at the lower end is connected to the upper end of the rotating shaft 23. A connecting screw 37 is passed through the protrusion 34. The upper and lower ends of the connecting screw 37 are respectively installed with mounting rings 36. A rotating ring 27 is installed on the mounting ring 36 at the lower end. A plurality of rollers 25 are tangent to the outer circumference of the rotating ring 27. A mounting bottom ring 24 is provided at the lower end of the roller 25. The mounting bottom ring 24 is installed on the bottom plate 1. An annular groove 26 is provided on the roller 25. A snap ring 28 is provided on the outer circumference of the rotating ring 27. The outer circumference of the snap ring 28 is tangent to the peripheral side of the annular groove 26.

[0020] A pair of guide holes 10 are provided on the bottom plate 1, and a movable rod is inserted into the guide holes 10. A movable outer plate 4 is provided at the upper end of the movable rod, and a plurality of plug rods 47 are provided on the inner wall of the movable outer plate 4. A pair of movable holes 40 are provided at the upper and lower ends of the movable outer plate 4, and a movable rod 41 is inserted into the movable holes 40. A clamping plate 46 is installed at the inner end of the movable rod 41 at the same end, and a movable plate 44 is provided at the outer end of the movable rod 41 at the same end. A screw rod 43 is provided on the movable plate 44, and the threads at both ends of the screw rod 43 are rotated in opposite directions. A middle seat 42 is rotatably provided on the screw rod 43, and the screw rod 43 is limited on the middle seat 42 by a pin. The middle seat 42 is installed on the movable outer plate 4, and a rotating head 45 is provided at the upper end of the screw rod 43.

[0021] When operating the present embodiment, the operator places the crushing plate between the clamping plates 46, and then rotates the screw rod 43 by the rotating head 45, and the movable plates 44 are brought closer to each other by the rotation of the screw rod 43, and the movable plates 44 will drive the clamping plates 46 to move when moving, and finally the crushing plate will be clamped between the clamping plates 46, and the insertion rod 47 needs to be inserted into the mounting hole of the crushing plate when clamping, and then the motor 2 is started, and the driving wheel 20 is rotated under the drive of the motor 2, and the rotation of the driving wheel 20 will drive the driven wheel 22 to rotate through the belt 21, and the rotation of the driven wheel 22 will drive the grinding ring 32 to rotate, and the inner wall of the crushing plate will be grinded by the rotation of the grinding ring 32, and the outer periphery of the grinding ring 32 is in close contact with the inner wall of the crushing plate during grinding, and the convex ring 35 is inserted into the card slot, and the grinding effect can be ensured by moving the crushing plate during grinding.

[0022] When replacing the grinding ring 32, the connecting screw 37 can be disassembled first, and then the operator takes out the grinding ring 32, and then replaces and reinstalls it.

[0023] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalents, the utility model is also intended to include these modifications and variations.

Claims

1. A grinding device, characterized in that: The invention comprises a base plate (1), a motor (2) is mounted on the base plate (1), an output shaft of the motor (2) is connected to a driving wheel (20), a rotating shaft (23) is rotatably provided on the base plate (1), a driven wheel (22) is provided at the lower end of the rotating shaft (23), and a belt (21) is used to transmit power between the driving wheel (20) and the driven wheel (22); A grinding piece is provided at the upper end of the rotating shaft (23), a grinding ring (32) is sleeved on the grinding piece, and a convex ring (35) is arranged along the axial direction of the outer periphery of the grinding ring (32); A pair of guide holes (10) are formed on the bottom plate (1), a movable rod is inserted into the guide hole (10), a movable outer plate (4) is provided at the upper end of the movable rod, a pair of movable holes (40) are respectively formed at the upper and lower ends of the movable outer plate (4), a movable rod (41) is inserted into the movable hole (40), a clamping plate (46) is installed at the inner end of the movable rod (41) located at the same end, a movable plate (44) is provided at the outer end of the movable rod (41) located at the same end, a screw rod (43) is provided on the movable plate (44), the screw rod (43) has threads at both ends with opposite rotation directions, a middle seat (42) is rotatably provided on the screw rod (43), the middle seat (42) is installed on the movable outer plate (4), and a rotating head (45) is provided at the upper end of the screw rod (43).

2. The grinding device according to claim 1, characterized in that: The grinding piece comprises a center column (3), the center column (3) is provided with end plates (30) at the upper and lower ends, the end plates (30) are provided with a plurality of slots (31), a grinding ring (32) is sleeved on the end plates (30), and the inner circumference of the grinding ring (32) is provided with a plurality of protrusions (34), the protrusions (34) are inserted into the slots (31), the end plate (30) at the lower end is connected to the upper end of the rotating shaft (23), a connecting screw (37) is inserted into the protrusion (34), and mounting rings (36) are respectively installed at the upper and lower ends of the connecting screw (37).

3. The grinding device according to claim 2, characterized in that: A rotating ring (27) is mounted on the mounting ring (36) at the lower end. A plurality of rollers (25) are tangentially arranged on the outer circumference of the rotating ring (27). A mounting bottom ring (24) is provided at the lower end of the roller (25). The mounting bottom ring (24) is mounted on the bottom plate (1).

4. The grinding device according to claim 3, characterized in that: The roller (25) is provided with an annular groove (26), and the outer periphery of the rotating ring (27) is provided with a snap ring (28), and the outer periphery of the snap ring (28) is tangent to the peripheral side of the annular groove (26).

5. The grinding device according to claim 1, characterized in that: The screw rod (43) is limited on the middle seat (42) by a pin.

6. The grinding device according to claim 1, characterized in that: The inner wall of the movable outer panel (4) is provided with a plurality of insertion rods (47).

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