Equipment inner wall polishing and grinding device

Abstract

The invention relates to the technical field of grinding and polishing, in particular to an equipment inner wall polishing and grinding device which comprises a shell, a stator, a rotor, a first fan and a transmission mechanism are arranged in the shell, a second fan is arranged at the bottom of the transmission mechanism, and a grinding and polishing mechanism is arranged at the bottom of the second fan. The grinding and polishing device has the beneficial effects that when the grinding and polishing device is used, the situation that particles such as ground rust blocks splash along with rotation of the grinding and polishing wheel and scratch the inner wall of equipment is avoided, the situation that a gap exists between the grinding and polishing wheel and the inner wall of the equipment due to the fact that the force application angle of an operator changes is avoided, and therefore the grinding and polishing effect is ensured; in the grinding process, the grinding and polishing mechanism is driven to swing in the radial direction while rotating, the polishing effect is improved, through cooperation of a containing groove, a connecting piece and an elastic piece, it is avoided that a gap exists between the grinding and polishing wheel and the inner wall of ground and polished equipment when the grinding and polishing wheel swings in the radial direction, and the polishing effect is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding and polishing, and in particular to a device for polishing the inner wall of equipment. Background Art

[0002] Polishing refers to a processing method that uses mechanical, chemical or electrochemical effects to reduce the surface roughness of a workpiece to obtain a bright and smooth surface. As the use time increases, the inner wall of some construction equipment will rust due to oxidation and other reasons. The rusted parts need to be ground and polished. At this time, a polishing and grinding device is needed.

[0003] A polishing machine that is easy to disassemble disclosed in Chinese patent CN218363981U includes a sponge plate and a driving machine, a connecting port is provided on the surface of the sponge plate, a bayonet is provided inside the connecting port, a first spring is fixedly connected to the inner wall of the sponge plate, one end of the first spring is fixedly connected to a first clamping block, and the first clamping block overlaps the bottom surface of the inner wall of the sponge plate, a sliding rod is fixedly connected to the surface of the first clamping block, a sliding rail is provided on the inner wall of the sponge plate, and the sliding rail is slidably connected to the sliding rod, a connecting frame is provided on the surface of the sponge plate, a round rod is fixedly connected to the inside of the connecting frame, and the round rod is slidably connected to the sliding rod, a second spring is provided inside the connecting frame, and the second spring is fixedly connected to the sliding rod, a paddle is fixedly connected to the surface of the sliding rod, a connecting head is fixedly connected to the output end of the driving machine, a first clamping groove is provided on the surface of the connecting head, a second clamping groove is provided inside the connecting port, and a second clamping block is provided on the surface of the connecting head.

[0004] However, compared with the prior art and the comparative scheme, it can be seen that the polishing machine still has the following problems in actual use: When grinding and polishing the rusted parts of the inner wall of the equipment, the rust blocks that are ground off will splash as the polishing wheel rotates, and will scratch other parts of the inner wall of the equipment. At the same time, if the operator's force angle changes, the angle of the polishing wheel will change, causing a gap to appear between the polishing wheel and the inner wall of the equipment, resulting in a reduction in the contact area between the polishing wheel and the inner wall of the equipment, affecting the effect of grinding and polishing. Summary of the invention

[0005] The present invention provides a device for polishing and grinding the inner wall of equipment to solve the above technical problems.

[0006] The present invention discloses a device for polishing and grinding the inner wall of an equipment, which adopts the following technical scheme: comprising a housing, wherein a stator, a rotor, a first fan and a transmission mechanism are arranged inside the housing, a second fan is arranged at the bottom of the transmission mechanism, and a grinding and polishing mechanism is arranged at the bottom of the second fan; A first connecting shaft is arranged in the middle of the rotor, a first bearing is arranged at one end of the first connecting shaft, a first gear is arranged at one end of the first connecting shaft away from the first bearing, and a second gear and a heat dissipation fan are arranged on the first connecting shaft; The transmission mechanism includes a third connecting shaft, a fourth gear and a second bearing are arranged on the third connecting shaft, the fourth gear and the first gear are meshed with each other, the third connecting shaft is rotatably connected in the housing through the second bearing, and a connecting seat is arranged at one end of the third connecting shaft; The second fan is fixedly mounted on the connecting seat by means of bolts, the second fan comprises a dense portion, a transition portion and a loose portion, and a connecting screw hole is arranged on the second fan; The grinding and polishing mechanism includes a connecting plate, a screw is arranged on the connecting plate, a receiving groove is opened at the bottom of the connecting plate, a connecting piece is arranged in the receiving groove, an elastic piece is arranged between the connecting piece and the connecting plate, and a grinding and polishing wheel is arranged on the side of the connecting piece away from the connecting plate.

[0007] Furthermore, an auxiliary handle and a connecting cover are provided on the outer shell, a connecting tube is provided on the connecting cover, a collecting bag is provided on one end of the connecting tube away from the connecting cover, and a connecting hole is opened on the connecting tube.

[0008] Furthermore, the first connecting shaft is rotatably connected to the inside of the housing via a first bearing.

[0009] Furthermore, a second connecting shaft is disposed on one side of the first fan, and a third gear is disposed on an end of the second connecting shaft away from the first fan, and the third gear is meshed with the second gear.

[0010] Furthermore, the second fan is arranged inside the connection cover.

[0011] Furthermore, the number of blades in the dense portion is greater than the number of blades in the transition portion, and the number of blades in the loose portion is less than the number of blades in the transition portion.

[0012] Furthermore, the screw rod is matched with the connecting screw hole, and the connecting plate is connected to the second fan through the screw rod and the connecting screw hole.

[0013] Furthermore, the storage groove is divided into two parts, the upper part is a prism, and the lower part is an inverted pyramid. The connecting piece is adapted to the lower part of the inverted pyramid of the storage groove.

[0014] Furthermore, the elastic member is arranged inside the receiving groove.

[0015] Furthermore, the second connecting shaft is rotatably connected to the connecting pipe through the connecting hole, and the first fan is arranged inside the connecting pipe.

[0016] The beneficial effects of the present invention are as follows: when in use, rust blocks and other particles and air generated by grinding are sucked into the collection bag along the connecting pipe, so as to avoid the situation where the rust blocks and other particles grinded off are splashed and scratched on the inner wall of the equipment as the grinding and polishing wheel rotates. When the force angle applied by the operator changes, the grinding and polishing wheel is always in contact with the part of the inner wall of the equipment that needs to be polished, so as to avoid the occurrence of a gap between the grinding and polishing wheel and the inner wall of the equipment due to the change in the force applied by the operator, thereby ensuring that the contact area between the grinding and polishing wheel and the inner wall of the equipment remains unchanged, thereby ensuring the effect of grinding and polishing. During the grinding process, the grinding and polishing mechanism is driven to produce radial swing while rotating, thereby improving the polishing effect. Through the cooperation between the receiving groove, the connecting piece and the elastic piece, the occurrence of a gap between the grinding and polishing wheel and the inner wall of the equipment being polished during radial swinging is avoided, thereby further improving the polishing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a structural schematic diagram of a first viewing angle of an embodiment of the present invention; Figure 2 It is a structural schematic diagram of a second viewing angle of an embodiment of the present invention; Figure 3 A schematic diagram of a split structure of an embodiment of the present invention; Figure 4 It is a schematic cross-sectional structural diagram of an embodiment of the present invention; Figure 5 It is a schematic diagram of a cross-sectional structure viewed from above of an embodiment of the present invention; Figure 6 It is a partial cross-sectional structural schematic diagram of a housing of an embodiment of the present invention; Figure 7 It is a schematic structural diagram of a rotor according to an embodiment of the present invention; Figure 8 is a schematic structural diagram of a first fan in an embodiment of the present invention; Fig. 9 It is a schematic structural diagram of a transmission mechanism according to an embodiment of the present invention; Fig.10 is a schematic structural diagram of a second fan in an embodiment of the present invention; Fig.11 It is a schematic cross-sectional structural diagram of a grinding and polishing mechanism according to an embodiment of the present invention.

[0019] In the figure: 1. shell; 101. auxiliary grip; 102. connecting cover; 103. connecting pipe; 104. collecting bag; 105. connecting hole; 2. stator; 3. rotor; 301. first connecting shaft; 302. first bearing; 303. first gear; 304. second gear; 305. cooling fan; 4. first fan; 401. second connecting shaft; 402. third gear; 5. transmission mechanism; 501. third connecting shaft; 502. fourth gear; 503. second bearing; 504. connecting seat; 6. second fan; 601. dense part; 602. transition part; 603. loose part; 604. connecting screw hole; 7. grinding and polishing mechanism; 701. connecting plate; 702. screw; 703. storage groove; 704. connecting piece; 705. elastic piece; 706. grinding and polishing wheel. DETAILED DESCRIPTION

[0020] 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.

[0021] An embodiment of a device for polishing and grinding the inner wall of an apparatus of the present invention is as follows: Figures 1 to 5 As shown, it comprises a housing 1, inside of which are arranged a stator 2, a rotor 3, a first fan 4 and a transmission mechanism 5, a second fan 6 is arranged at the bottom of the transmission mechanism 5, and a grinding and polishing mechanism 7 is arranged at the bottom of the second fan 6.

[0022] like Figure 6 As shown, an auxiliary handle 101 and a connecting cover 102 are provided on the outer shell 1, a connecting tube 103 is provided on the connecting cover 102, a collecting bag 104 is provided on the end of the connecting tube 103 away from the connecting cover 102, a connecting hole 105 is provided on the connecting tube 103, a part of the connecting tube 103 is provided inside the outer shell 1, the connecting hole 105 is provided on the connecting tube 103 located inside the outer shell 1, and an air inlet and an air outlet for dissipating heat inside the outer shell 1 are provided on the outer shell 1.

[0023] like Figures 4 to 7 As shown, the rotor 3 is arranged in the middle of the stator 2, and a first connecting shaft 301 is arranged in the middle of the rotor 3. A first bearing 302 is arranged at one end of the first connecting shaft 301. The first connecting shaft 301 is rotatably connected to the inside of the housing 1 through the first bearing 302. A first gear 303 is arranged at one end of the first connecting shaft 301 away from the first bearing 302, and a second gear 304 and a cooling fan 305 are arranged on the first connecting shaft 301.

[0024] like Figures 5 to 8As shown, a second connecting shaft 401 is provided on one side of the first fan 4, and the second connecting shaft 401 is rotatably connected to the connecting pipe 103 through the connecting hole 105. The first fan 4 is arranged inside the connecting pipe 103, and a third gear 402 is provided on the end of the second connecting shaft 401 away from the first fan 4, and the third gear 402 is meshed with the second gear 304.

[0025] like Figures 4 to 7 , Fig. 9 As shown, the transmission mechanism 5 includes a third connecting shaft 501, a fourth gear 502, a second bearing 503 and a connecting seat 504. The fourth gear 502 and the second bearing 503 are arranged on the third connecting shaft 501. The fourth gear 502 is meshed with the first gear 303. The third connecting shaft 501 is rotatably connected to the housing 1 through the second bearing 503. A connecting seat 504 is arranged at one end of the third connecting shaft 501. In the present embodiment, the connecting seat 504 is made of rubber.

[0026] like Figure 3 , Figure 4 , Fig. 9 and Fig.10 As shown, the second fan 6 is fixedly installed on the connecting seat 504 by bolts, and the second fan 6 is arranged inside the connecting cover 102. The second fan 6 includes a dense portion 601, a transition portion 602 and a loose portion 603. The blades of the second fan 6 are equally divided into multiple parts, one part of which is a dense portion 601, and one part is a loose portion 603. The part between the dense portion 601 and the loose portion 603 is the transition portion 602. The dense portion 601 and the loose portion 603 are symmetrically distributed on the second fan 6. The number of blades in the dense portion 601 is greater than the number of blades in the transition portion 602, and the number of blades in the loose portion 603 is less than the number of blades in the transition portion 602. The second fan 6 is provided with a connecting screw hole 604.

[0027] like Figure 3 , Figure 4 , Fig.10 and Fig.11As shown, the grinding and polishing mechanism 7 includes a connecting disk 701, a screw 702, a receiving groove 703, a connecting piece 704, an elastic piece 705 and a grinding and polishing wheel 706. The connecting disk 701 is provided with a screw 702, and the screw 702 is matched with the connecting screw hole 604. The connecting disk 701 is connected to the second fan 6 through the screw 702 and the connecting screw hole 604. A receiving groove 703 is opened at the bottom of the connecting disk 701, and a connecting piece 704 is arranged in the receiving groove 703. The receiving groove 703 is divided into an upper and lower part, the upper part is a prism, and the lower part is an inverted pyramid. The connecting piece 704 is matched with the inverted pyramid lower part of the receiving groove 703. An elastic piece 705 is arranged between the connecting piece 704 and the connecting disk 701, and the elastic piece 705 is arranged inside the receiving groove 703. A grinding and polishing wheel 706 is arranged on the side of the connecting piece 704 away from the connecting disk 701.

[0028] The working process is as follows: S1. When in use, the rotor 3 drives the first connecting shaft 301 to rotate, and the first connecting shaft 301 drives the first gear 303, the second gear 304 and the cooling fan 305 to rotate. The cooling fan 305 drives air to enter from the air inlet on the housing 1, flow out from the air outlet on the housing 1, flow inside the housing 1, and dissipate heat inside the housing 1; S2, the first gear 303 drives the fourth gear 502 to rotate, the fourth gear 502 drives the connecting seat 504 to rotate through the third connecting shaft 501, the connecting seat 504 drives the second fan 6 to rotate, the second fan 6 drives the grinding and polishing mechanism 7 to rotate, and the inner wall of the equipment is grinded and polished; S3, during the grinding process, the second fan 6 draws the rust and other particles removed by grinding into the connection cover 102 along with the air; S4. At the same time, the second gear 304 drives the third gear 402 to rotate, and the third gear 402 drives the first fan 4 to rotate through the second connecting shaft 401, so that the rust blocks and other particles and air in the connecting cover 102 are sucked into the collecting bag 104 along the connecting pipe 103, so as to prevent the rust blocks and other particles from being splashed and scratching the inner wall of the equipment as the grinding and polishing wheel 706 rotates; S5. When the force angle of the operator changes, the connecting member 704 slides inside the receiving groove 703, and the elastic member 705 contracts so that the grinding and polishing wheel 706 always fits with the part of the inner wall of the equipment that needs to be polished, thereby avoiding a gap between the grinding and polishing wheel 706 and the inner wall of the equipment due to the change in the force angle of the operator, ensuring that the contact area between the grinding and polishing wheel 706 and the inner wall of the equipment remains unchanged, thereby ensuring the effect of grinding and polishing; S6. Since the second fan 6 includes a dense portion 601, a transition portion 602 and a loose portion 603, the number of blades in the dense portion 601 is greater than the number of blades in the transition portion 602, and the number of blades in the loose portion 603 is less than the number of blades in the transition portion 602, so that the masses of different parts are different; S7. During the rotation of the second fan 6, the centrifugal force in the direction of the dense portion 601 is greater than the centrifugal force in the transition portion 602, which is greater than the centrifugal force in the loose portion 603. As a result, the second fan 6 swings radially toward the dense portion 601 while rotating, driving the grinding and polishing mechanism 7 to swing radially while rotating, thereby improving the polishing effect. Through the cooperation between the receiving groove 703, the connecting piece 704 and the elastic piece 705, a gap is avoided between the grinding and polishing wheel 706 and the inner wall of the equipment being ground and polished during radial swinging, thereby further improving the polishing effect.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for polishing and grinding the inner wall of an equipment, characterized in that: It comprises a shell, wherein a stator, a rotor, a first fan and a transmission mechanism are arranged inside the shell, a second fan is arranged at the bottom of the transmission mechanism, and a grinding and polishing mechanism is arranged at the bottom of the second fan; A first connecting shaft is disposed in the middle of the rotor, a first bearing is disposed at one end of the first connecting shaft, a first gear is disposed at one end of the first connecting shaft away from the first bearing, and a second gear and a cooling fan are disposed on the first connecting shaft; The transmission mechanism comprises a third connecting shaft, a fourth gear and a second bearing are arranged on the third connecting shaft, the fourth gear is meshed with the first gear, the third connecting shaft is rotatably connected to the housing through the second bearing, and a connecting seat is arranged at one end of the third connecting shaft; The second fan is fixedly mounted on the connecting seat by bolts, the second fan comprises a dense portion, a transition portion and a loose portion, and a connecting screw hole is provided on the second fan; The grinding and polishing mechanism includes a connecting plate, a screw is arranged on the connecting plate, a receiving groove is opened at the bottom of the connecting plate, a connecting piece is arranged in the receiving groove, an elastic piece is arranged between the connecting piece and the connecting plate, and a grinding and polishing wheel is arranged on the side of the connecting piece away from the connecting plate.

2. The inner wall polishing and grinding device of the equipment according to claim 1, characterized in that: The shell is provided with an auxiliary handle and a connecting cover, the connecting cover is provided with a connecting pipe, a collecting bag is provided at one end of the connecting pipe away from the connecting cover, and a connecting hole is opened on the connecting pipe.

3. The inner wall polishing and grinding device of the equipment according to claim 1, characterized in that: The first connecting shaft is rotatably connected to the interior of the housing via the first bearing.

4. The inner wall polishing and grinding device of the equipment according to claim 2, characterized in that: A second connecting shaft is disposed on one side of the first fan, a third gear is disposed on an end of the second connecting shaft away from the first fan, and the third gear is meshed with the second gear.

5. The inner wall polishing and grinding device of the equipment according to claim 2, characterized in that: The second fan is arranged inside the connection cover.

6. The inner wall polishing and grinding device of the equipment according to claim 1, characterized in that: The number of blades in the dense portion is greater than the number of blades in the transition portion, and the number of blades in the loose portion is less than the number of blades in the transition portion.

7. The inner wall polishing and grinding device of the equipment according to claim 1, characterized in that: The screw rod is matched with the connecting screw hole, and the connecting plate is connected to the second fan through the screw rod and the connecting screw hole.

8. The inner wall polishing and grinding device of the equipment according to claim 1, characterized in that: The storage groove is divided into two parts, the upper part is prism-shaped, and the lower part is inverted pyramid-shaped. The connecting piece is matched with the lower part of the inverted pyramid-shaped storage groove.

9. The inner wall polishing and grinding device of the equipment according to claim 1, characterized in that: The elastic member is arranged inside the receiving groove.

10. The inner wall polishing and grinding device of the equipment according to claim 4, characterized in that: The second connecting shaft is rotatably connected to the connecting pipe through the connecting hole, and the first fan is arranged inside the connecting pipe.

Images