Honing head and honing device having the same

Abstract

The application discloses a honing head and a honing device with the same. The honing head comprises a connecting shaft, a mounting seat and a plurality of honing assemblies. The connecting shaft has a first end and a second end, and the second end is used for connecting a power device. The second end of the connecting shaft is connected with the mounting seat. The plurality of honing assemblies are arranged at intervals along the circumference of the connecting shaft. Each honing assembly comprises a bracket and a honing bar. The honing bar is connected with the bracket. The honing bar has a honing surface arranged on the side of the honing bar away from the axis of the connecting shaft. The bracket is movably connected with the mounting seat so that the honing surface is abutted against the cylinder wall. The honing head of the embodiment of the application can improve the flatness and uniformity of the honing of the cylinder wall, reduce the risk of liquid channeling and liquid leakage of the hydraulic cylinder, and has a better maintenance effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of honing equipment, in particular to a honing head and a honing device with the same. BACKGROUND

[0002] The cylinder of a mine hydraulic prop will appear liquid leakage and liquid channeling after being used for a period of time, and the inner cylinder wall of the hydraulic cylinder needs to be honed on a special device to repair scratches and rust on the inner cylinder wall of the hydraulic cylinder.

[0003] In actual repair operation, maintenance personnel often perform manual rust removal and polishing on site for the convenience of operation. However, manual operation can cause uneven polishing and uneven polishing, resulting in the repaired hydraulic cylinder still having liquid leakage and liquid channeling, poor repair effect, and high repair rate. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the related art to some extent.

[0005] To this end, an embodiment of the present application proposes a honing head that can improve the flatness and uniformity of cylinder wall honing, reduce the risk of liquid leakage and liquid channeling of the hydraulic cylinder, and achieve better repair effect.

[0006] The honing head of the embodiment of the present application comprises a connecting shaft, a mounting seat and a plurality of honing assemblies; the connecting shaft has a first end and a second end, the first end is used to connect a power device, and the second end is connected with the mounting seat; the plurality of honing assemblies are arranged in a circumferential direction of the connecting shaft, the honing assembly comprises a bracket and a honing bar, the honing bar is connected with the bracket, the honing bar has a honing surface, the honing surface is arranged on a side of the honing bar away from an axis of the connecting shaft, and the bracket is movably connected with the mounting seat so that the honing surface abuts against a cylinder wall of a cylinder.

[0007] In some embodiments, the honing head further comprises a tensioning assembly, the tensioning assembly comprises a gland, the gland is movably sleeved on the connecting shaft, the gland has an inner tapered surface, the inner tapered surface gradually moves away from the axis of the connecting shaft in a first direction, the first direction is directed from the first end to the second end of the connecting shaft; the bracket is a support rod, the support rod gradually moves away from the axis of the connecting shaft in the first direction, the support rod comprises a first rod segment, an abutting segment and a second rod segment arranged in sequence, at least a part of the first rod segment is arranged in the gland and abuts against the inner tapered surface, the mounting seat has a mounting groove, the abutting segment passes through the mounting groove, the abutting segment abuts against a groove wall of the mounting groove, and the honing bar is connected with the second rod segment.

[0008] In some embodiments, the tensioning assembly further includes an elastic element and an adjusting seat. The adjusting seat is movably fitted onto the connecting shaft and threadedly connected to the connecting shaft. The elastic element is arranged between the pressure cap and the adjusting seat, and its two ends abut against the pressure cap and the adjusting seat, respectively.

[0009] In some embodiments, the mounting base includes a core and a housing. The core is connected to the connecting shaft. The core has a receiving groove on the side facing the pressure cap. The first rod segment includes a protrusion that abuts against the groove wall of the receiving groove. The housing is fitted onto and connected to the core. The core has a plurality of first grooves, each corresponding to a support rod. The first grooves communicate with the receiving grooves. The groove wall of the first groove and the inner wall of the housing form the mounting groove.

[0010] In some embodiments, the sidewall of the housing has a through-hole relief groove that communicates with the mounting groove, the stop section passes through the mounting groove and the relief groove in sequence, and the relief groove has a first groove wall and a second groove wall arranged opposite to each other along the width direction of the support rod.

[0011] In some embodiments, the honing head further includes a fixing bolt, the housing has a through groove, the core has a fixing hole, and the fixing bolt passes through the through groove and is threadedly connected to the fixing hole.

[0012] In some embodiments, the support is provided with a honing frame, the honing frame is rotatably connected to the support, and the honing strip is connected to the honing frame.

[0013] The honing device of this invention includes a power unit and a honing head, wherein the power unit includes a power shaft; the honing head is the honing head described in any of the above embodiments, and the connecting shaft is connected to the power shaft.

[0014] In some embodiments, the honing apparatus further includes a liquid spraying assembly, which includes a spraying pipe and a spraying nozzle. The spraying pipe has a first pipe end and a second pipe end. The first pipe end is used to connect to a liquid source, and the second pipe end is connected to the spraying nozzle. The spraying nozzle has an opening extending from the first end of the connecting shaft toward the second end.

[0015] In some embodiments, a retaining assembly is provided between the spray pipe and the connecting shaft. The retaining assembly includes a first bearing and a second bearing connected to each other. The first bearing is fitted onto the power shaft, and the second bearing is fitted onto the spray pipe.

[0016] The honing head of this invention is suitable for honing the wall of a hydraulic cylinder. The second end of the connecting shaft is connected to a power device (e.g., an electric drill). Multiple honing components are then inserted into the wall of the hydraulic cylinder, ensuring the honing surface of the honing strips adheres to the cylinder wall. Starting the power device drives the honing head to rotate, thereby honing the cylinder wall. Compared to manual honing by maintenance personnel in related technologies, this method improves the flatness and uniformity of the cylinder wall, reduces the risk of fluid leakage and cross-contamination in the hydraulic cylinder, and achieves better maintenance results. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a honing head according to an embodiment of the present invention.

[0018] Figure 2 This is an exploded schematic diagram of a honing head according to an embodiment of the present invention.

[0019] Figure 3 This is a cross-sectional view of a honing head according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the honing device according to an embodiment of the present invention.

[0021] Figure label:

[0022] 100. Honing device;

[0023] 10. Honing head;

[0024] 1. Connecting shaft; 11. First end; 12. Second end; 13. First threaded section; 14. Second threaded section; 15. Connecting section;

[0025] 2. Mounting base; 21. Core; 211. Receiving groove; 212. First groove; 213. Fixing hole; 22. Housing; 221. Relief groove; 222. Through groove; 23. Mounting groove;

[0026] 3. Honing assembly; 31. Support rod; 311. First rod section; 3111. Protrusion; 312. Stop section; 313. Second rod section; 3131. Limiting plate; 32. Honing strip; 321. Honing surface; 33. Honing frame;

[0027] 4. Tensioning assembly; 41. Pressure cap; 411. Inner conical surface; 412. Conical groove; 413. Limiting post; 42. Elastic component; 43. Adjusting seat; 431. Limiting groove;

[0028] 20. Power unit; 201. Power shaft;

[0029] 30. Couplings;

[0030] 40. Spraying assembly; 401. Spraying pipe; 402. Spray nozzle;

[0031] 50. Retaining assembly; 501. First bearing; 502. Second bearing; 503. First cage; 504. Second cage; 505. Connecting rod. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] like Figure 1 and Figure 2 As shown, the honing head 10 of this embodiment includes a connecting shaft 1, a mounting base 2, and a plurality of honing assemblies 3. The connecting shaft 1 has a first end 11 and a second end 12. The first end 11 is used to connect to a power device 20, and the second end 12 of the connecting shaft 1 is connected to the mounting base 2. The plurality of honing assemblies 3 are arranged at intervals along the circumference of the connecting shaft 1. The honing assembly 3 includes a bracket and a honing strip 32. The honing strip 32 is connected to the bracket and has a honing surface 321. The honing surface 321 is arranged on the side of the honing strip 32 away from the axis of the connecting shaft 1. The bracket is movably connected to the mounting base 2 so that the honing surface 321 abuts against the cylinder wall.

[0034] The honing head 10 of this invention is suitable for honing the cylinder wall of a hydraulic cylinder. The second end 12 of the connecting shaft 1 is connected to a power device 20 (e.g., a hand drill). Multiple honing components 3 are then inserted into the cylinder wall of the hydraulic cylinder, so that the honing surface 321 of the honing strip 32 adheres to the cylinder wall. Starting the power device 20 drives the honing head 10 to rotate, thereby achieving honing of the cylinder wall. Compared with manual grinding by maintenance personnel in related technologies, the cylinder wall is polished more evenly and smoothly, reducing the risk of fluid leakage and improving maintenance results.

[0035] Furthermore, the honing head 10 is powered by a power unit 20, such as an electric drill, and is suitable for honing the cylinder wall of a hydraulic cylinder on-site, which is more convenient to operate compared to honing with a dedicated honing equipment.

[0036] It is understood that the honing head 10 of this embodiment is suitable for honing various cylindrical parts.

[0037] In some embodiments, such as Figure 2 and Figure 3As shown, the honing head 10 also includes a tensioning assembly 4, which includes a pressure cap 41. The pressure cap 41 is movably fitted onto the connecting shaft 1. The pressure cap 41 has an inner conical surface 411, which gradually moves away from the axis of the connecting shaft 1 along a first direction, from the first end 11 of the connecting shaft 1 to the second end 12. The support is a support rod 31, which gradually moves away from the axis of the connecting shaft 1 along the first direction. The support rod 31 includes a first rod segment 311, a stop segment 312, and a second rod segment 313 arranged sequentially. At least a portion of the first rod segment 311 is arranged inside the pressure cap 41 and abuts against the inner conical surface 411. The mounting base 2 has a mounting groove 23, through which the stop segment 312 passes and abuts against the groove wall of the mounting groove 23. The honing strip 32 is connected to the second rod segment 313.

[0038] With the above settings, when honing the cylinder wall, the honing strip 32 and part of the support rod 31 are inserted into the cylinder. The honing strip 32 abuts against the cylinder wall, the first rod segment 311 abuts against the inner conical surface 411, and the abutting segment 312 abuts against the groove wall of the mounting groove 23 to form a fulcrum, thereby forming a lever structure. The pressure cap 41 is moved closer to the support rod 31. The pressure cap 41 exerts inward pressure on the first rod segment 311, causing the support rod 31 to tend to rotate around the fulcrum. The cylinder wall exerts inward pressure on the second rod segment 313, which can prevent the support rod 31 from rotating around the fulcrum. Thus, the honing strip 32 can maintain contact with the cylinder wall, so as to perform more uniform and flat honing on the cylinder wall, thereby achieving a better honing effect.

[0039] In this context, "inward" refers to the direction along the radial direction of the connecting shaft 1 from the support rod 31 to the axis of the connecting shaft 1, and "outward" refers to the direction along the radial direction of the connecting shaft 1 from the axis of the connecting shaft 1 to the support rod 31.

[0040] It is understandable that as the pressure cap 41 moves and the support rod 31 rotates, the stopping position of the stop section 312 and the groove wall of the mounting groove 23 will change. In other words, the position of the fulcrum will change as the pressure cap 41 moves and the support rod 31 rotates.

[0041] As an example, such as Figure 1 and Figure 2 As shown, the outer contour of the mounting base 2 is cylindrical and coaxial with the connecting shaft 1. There are three honing components 3, which are evenly arranged along the circumference of the mounting base 2. When the three honing strips 32 simultaneously abut against the cylinder wall, the connecting shaft 1 is coaxial with the cylinder, thereby making the three honing strips 32 bear force evenly, which can improve the uniformity and flatness of honing.

[0042] like Figure 3As shown, the pressure cap 41 is fitted onto the connecting shaft 1 with a gap, allowing the pressure cap 41 to move axially along the connecting shaft 1. The pressure cap 41 has a conical groove 412 facing the mounting base 2, and the sidewall of the conical groove 412 forms the aforementioned inner conical surface 411. At least a portion of each of the three first rod segments 311 is arranged within the conical groove 412. Moving the pressure cap 41 towards the mounting base 2 allows the three first rod segments 311 to abut against the inner conical surface 411, and the three abutting segments 312 to abut against the groove wall of the mounting groove 23 to form three fulcrums. Placing the three honing strips 32 into the cylinder allows the three honing strips 32 to abut against the cylinder wall, thereby improving the uniformity and smoothness of the honing and increasing the honing efficiency.

[0043] Understandably, moving the pressure cap 41 away from the mounting base 2 allows the three second rod segments 313 to rotate relative to each other, thereby driving the three honing strips 32 to move inward so that the three honing strips 32 can be placed into the cylinder at the same time.

[0044] In some embodiments, such as Figure 2 and Figure 3 As shown, the tensioning assembly 4 also includes an elastic element 42 and an adjusting seat 43. The adjusting seat 43 is movably fitted onto the connecting shaft 1 and threadedly connected to the connecting shaft 1. The elastic element 42 is arranged between the pressure cap 41 and the adjusting seat 43, and the two ends of the elastic element 42 abut against the pressure cap 41 and the adjusting seat 43 respectively.

[0045] With the above settings, the adjusting seat 43 can be turned to adjust the elastic force of the elastic element 42 on the pressure cap 41, so that the inner conical surface 411 of the pressure cap 41 abuts against the support rod 31, thereby making the support rod 31 in an elastic tension state; an inward external force is applied to the second rod section 313 of the support rod 31, and this external force is transmitted to the inner conical surface 411 through the support rod 31, which can drive the pressure cap 41 to overcome the elastic force of the elastic element 42 and move away from the mounting seat 2.

[0046] Therefore, by tightening the second rod section 313 of the multiple support rods 31 inward with external force, multiple honing strips 32 can be simultaneously placed into the cylinder. Subsequently, under the elastic force of the elastic member 42, the pressure cover 41 automatically moves towards the mounting base 2, so that the honing surfaces 321 of the multiple honing strips 32 automatically adhere to and abut against the cylinder wall, thereby realizing the assembly of the honing head 10 and the cylinder. The honing operation can be performed on the cylinder wall by starting the power device 20.

[0047] like Figure 1 and Figure 3 As shown, under the action of the elastic element 42, the pressure cap 41 abuts against the mounting base 2. At this time, the three support rods 31 are in the maximum tension position. In the maximum tension position, the cylinder diameter that the three honing strips 32 can adapt to is the maximum cylinder diameter that the honing head 10 can perform honing operation.

[0048] Optionally, such as Figure 3 As shown, the elastic element 42 is a spring, which is fitted onto the connecting shaft 1, with one end abutting against the adjusting seat 43 and the other end abutting against the pressure cap 41.

[0049] As an example, such as Figure 3 As shown, the connecting shaft 1 includes a first threaded section 13, and an adjusting seat 43 is fitted onto the first threaded section 13 and threadedly engaged with it. The adjusting seat 43 has a limiting groove 431 facing the pressure cap 41. One end of the spring is arranged in the limiting groove 431 and abuts against the bottom wall of the limiting groove 431. The side wall of the limiting groove 431 can limit the spring. The pressure cap 41 has a limiting post 413 facing the adjusting seat 43. The other end of the spring is fitted onto the limiting post 413 and abuts against the pressure cap 41. The limiting post 413 can further limit the spring, allowing the spring to extend and retract along the axial direction of the connecting shaft 1, thereby improving the stability of the spring.

[0050] In some embodiments, such as Figure 2 and Figure 3 As shown, the mounting base 2 includes a core 21 and a housing 22. The core 21 is connected to the connecting shaft 1. The core 21 has a receiving groove 211 on the side facing the pressure cap 41. The first rod segment 311 includes a protrusion 3111, which abuts against the groove wall of the receiving groove 211. The housing 22 is fitted onto the core 21 and connected to the core 21. The core 21 has a plurality of first grooves 212, which correspond one-to-one with the support rod 31. The first grooves 212 communicate with the receiving grooves 211. The groove wall of the first groove 212 and the inner wall of the housing 22 form a mounting groove 23.

[0051] The protrusion 3111 of the first rod segment 311 abuts against the groove wall of the receiving groove 211, which can support the support rod 31 and prevent the support rod 31 from detaching from the mounting base 2 in the first direction. At the same time, by setting the first groove 212, the groove wall of the first groove 212 can limit the support rod 31 and improve the stability of the support rod 31 installation.

[0052] Furthermore, by splitting the mounting base 2 into a core 21 and a housing 22, it is more convenient to install multiple honing components 3.

[0053] Optionally, such as Figure 3 As shown, the connecting shaft 1 includes a second threaded section 14, which is closer to the mounting base 2 than the first threaded section 13. There is a smooth section between the second threaded section 14 and the first threaded section 13. The diameter of the smooth section is smaller than the diameter of the first threaded section 13 and the diameter of the second threaded section 14. The second threaded section 14 passes through the core 21 and is threadedly engaged with the core 21.

[0054] Therefore, the connection structure between the connecting shaft 1 and the core 21 is relatively simple, which can improve the ease of assembly of the honing head 10.

[0055] As an example, such as Figure 2 As shown, the shell 22 is a cylindrical shape with openings at both ends, and the core 21 is cylindrical. The core 21 is coaxially arranged with the shell 22. The first groove 212 is arranged through the core 21 along its axial direction. The first groove 212 has two parallel side walls. The distance between the two side walls is the width of the first groove 212. The width of the support rod 31 is the same as the width of the first groove 212. The two parallel side walls of the first groove 212 can restrict the position of the support rod 31 along its width direction to improve the stability of the support rod 31 installation.

[0056] The receiving groove 211 is arranged on the end face of the core 21 facing the pressure cap 41. The receiving groove 211 is elongated and has a semi-circular cross-section. The receiving groove 211 is arranged through the width direction of the first groove 212 and intersects with the first groove 212. The first rod segment 311 includes two protrusions 3111, which are arranged opposite to each other on both sides of the first rod segment 311 along the width direction of the first rod segment 311. The stop segment 312 passes through the first groove 212, and the two protrusions 3111 abut against the groove wall of the receiving groove 211, thereby preventing the support rod 31 from detaching from the mounting base 2 in the first direction and improving the stability of the support rod 31 installation.

[0057] In some embodiments, such as Figures 1 to 3 As shown, the side wall of the housing 22 has a through-hole relief groove 221, which is connected to the mounting groove 23. The stop section 312 passes through the mounting groove 23 and the relief groove 221 in sequence. The relief groove 221 has a first groove wall 212 and a second groove wall arranged opposite to each other along the width direction of the support rod 31.

[0058] With the above settings, the first groove 212 wall and the second groove wall of the positioning groove 221 can be further limited along the width direction of the support rod 31, thereby further improving the stability of the support rod 31 installation.

[0059] like Figure 3 As shown, the stop section 312 abuts against the intersection of the inner wall of the housing 22 and the groove wall of the relief groove 221.

[0060] As an example, such as Figure 1 As shown, the side of the relief groove 221 away from the pressure cover 41 is open. There are multiple relief grooves 221, and they correspond one-to-one with the support rods 31. The multiple relief grooves 221 are evenly arranged along the circumference of the housing 22, thereby improving the installation stability of the multiple support rods 31.

[0061] In some embodiments, such as Figure 1 and Figure 3As shown, the honing head 10 also includes a fixing bolt (not shown in the figure), the housing 22 has a through groove 222, the core 21 has a fixing hole 213, and the fixing bolt passes through the through groove 222 and is threadedly connected to the fixing hole 213.

[0062] The shell 22 and the core 21 are connected by fixing bolts, making operation more convenient.

[0063] Optionally, such as Figure 1 As shown, the through groove 222 is arranged between two adjacent relief grooves 221, and the through groove 222 extends in a waist shape along the circumference of the housing 22.

[0064] Therefore, the relative positions of the core 21 and the housing 22 can be finely adjusted along the circumference of the mounting base 2 to install the support rod 31 and improve the ease of assembling the honing head 10.

[0065] In other embodiments, the number of fixing bolts can be multiple, and correspondingly, the number of through slots 222 and fixing holes 213 can also be multiple, thereby improving the stability of the connection between the core 21 and the housing 22.

[0066] In some embodiments, such as Figure 1 and Figure 2 As shown, a honing frame 33 is provided on the support, and the honing frame 33 is rotatably connected to the support. The honing strip 32 is connected to the honing frame 33.

[0067] By rotatably connecting the honing frame 33 to the bracket, the adaptability of the honing strip 32 can be improved, enabling the honing strip 32 to adapt to hydraulic cylinders of different diameters and fit tightly against their cylinder walls, thereby achieving a better honing effect.

[0068] like Figure 1 and Figure 2 As shown, the honing frame 33 is in the shape of a long strip plate. The middle position of the honing frame 33 along its length is rotatably connected to the second segment 313 of the support rod 31 via a pivot. The honing strip 32 is also in the shape of a long strip plate and matches the shape of the honing frame 33. The honing strip 32 is located on the outer side of the honing frame 33. Thus, after the three support rods 31 are inserted into the hydraulic cylinder, the three honing strips 32 are stretched outward and abutted against the cylinder wall under the action of the elastic element 42. Then, the power unit 20 can be started to perform honing.

[0069] The end of the second rod segment 313 away from the stop segment 312 has a limiting plate 3131. The limiting plate 3131 intersects the length direction of the second rod segment 313. The limiting plate 3131 is used to limit the rotation angle of the honing frame 33 and prevent the honing frame 33 away from the mounting base 2 from rotating inward by too large an angle, which would cause the honing frame 33 to enter the inner side of the support rod 31.

[0070] like Figure 4As shown, the honing device 100 of this embodiment includes a power device 20 and a honing head 10. The power device 20 includes a power shaft 201. The honing head 10 is the honing head 10 of any of the above embodiments. The connecting shaft 1 is connected to the power shaft 201.

[0071] The honing device 100 of this invention is suitable for honing the cylinder wall of a hydraulic cylinder. Multiple honing components 3 are inserted into the cylinder wall, so that the honing surfaces 321 of the honing strips 32 are in contact with the cylinder wall. Then, the power device 20 is started, and the power shaft 201 drives the connecting shaft 1 to rotate, which in turn drives the multiple honing strips 32 to rotate around the axis of the connecting shaft 1. This achieves honing of the cylinder wall, improves the flatness and uniformity of the cylinder wall, reduces the risk of fluid leakage and cross-contamination in the hydraulic cylinder, and improves maintenance results.

[0072] Optionally, such as Figure 4 As shown, the power unit 20 is a hand drill.

[0073] Therefore, on-site operators can use the hand-held honing device 100 to hone the hydraulic cylinder, thereby improving the convenience of operation.

[0074] Optionally, such as Figure 4 As shown, the power shaft 201 and the connecting shaft 1 are connected by a coupling 30.

[0075] The coupling 30 can securely connect the power shaft 201 and the connecting shaft 1, so that the torque of the power shaft 201 can be transmitted to the connecting shaft 1, ensuring that the connecting shaft 1 and the power shaft 201 rotate synchronously.

[0076] In some embodiments, such as Figure 4 As shown, the honing device 100 also includes a liquid spraying assembly 40, which includes a liquid spraying pipe 401 and a liquid spraying nozzle 402. The liquid spraying pipe 401 has a first pipe end and a second pipe end. The first pipe end is used to connect to a liquid source, and the second pipe end is connected to the liquid spraying nozzle 402. The liquid spraying nozzle 402 has an opening that extends from the first end 11 of the connecting shaft 1 toward the second end 12.

[0077] The spraying assembly 40 can spray rust remover, emulsion and other liquids into the cylinder while the honing strip 32 is honing the cylinder wall, so as to remove rust, lubricate, cool and flush impurities, thereby improving the honing effect.

[0078] In some embodiments, a retaining assembly 50 is provided between the spray pipe 401 and the connecting shaft 1. The retaining assembly 50 includes a first bearing 501 and a second bearing 502 connected to each other. The first bearing 501 is mounted on the power shaft 201, and the second bearing 502 is mounted on the spray pipe 401.

[0079] By retaining component 50, a connection can be established between the spray pipe 401 and the drive shaft 201 to improve the stability of the spray pipe 401 during the spraying process.

[0080] Of course, in other embodiments, the spray pipe 401 is also connected to the housing of the electric drill to further improve the stability of the spray pipe 401.

[0081] As an example, such as Figure 4 As shown, the retaining assembly 50 also includes a first retainer 503, a second retainer 504, and a connecting rod 505. The first retainer 503 and the second retainer 504 are fixed to each other by the connecting rod 505. The inner ring of the first bearing 501 is interference-fitted with the drive shaft 201, and the outer ring of the first bearing 501 is interference-fitted with the first retainer 503. The inner ring of the second bearing 502 is interference-fitted with the spray pipe 401, and the outer ring of the second bearing 502 is interference-fitted with the second retainer 504. This allows the spray pipe 401 to remain stable relative to the electric drill while the drive shaft 201 rotates, reducing the possibility of the spray pipe 401 rotating with the drive shaft 201.

[0082] Optionally, the spraying assembly 40 also includes a storage tank and a pump body. The storage tank is connected to the housing of the electric drill, the inlet of the pump body is connected to the storage tank, and the outlet of the pump body is connected to the spraying pipe 401.

[0083] Therefore, starting the pump body can pump the liquid in the storage tank into the spray pipe 401, and then spray it into the cylinder through the spray nozzle 402 to improve the honing effect.

[0084] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A honing head (10), characterized in that, include: A connecting shaft (1) has a first end (11) and a second end (12), the first end (11) being used to connect a power unit (20). Mounting base (2), the second end (12) is connected to the mounting base (2); Multiple honing assemblies (3) are arranged circumferentially at intervals along the connecting shaft (1). Each honing assembly (3) includes a bracket and a honing strip (32). The honing strip (32) is connected to the bracket and has a honing surface (321). The honing surface (321) is arranged on the side of the honing strip (32) away from the axis of the connecting shaft (1). The bracket is movably connected to the mounting base (2) so that the honing surface (321) abuts against the cylinder wall. Tensioning assembly (4), the tensioning assembly (4) includes a pressure cap (41), the pressure cap (41) is movably fitted onto the connecting shaft (1), the pressure cap (41) has an inner conical surface (411), the inner conical surface (411) gradually moves away from the axis of the connecting shaft (1) along a first direction, the first direction pointing from a first end (11) of the connecting shaft (1) to a second end (12); The bracket is a support rod (31), which gradually moves away from the axis of the connecting shaft (1) along the first direction. The support rod (31) includes a first rod segment (311), a stop segment (312), and a second rod segment (313) arranged in sequence. At least a portion of the first rod segment (311) is arranged in the cover (41) and abuts against the inner conical surface (411). The mounting base (2) has a mounting groove (23). The stop segment (312) passes through the mounting groove (23) and abuts against the groove wall of the mounting groove (23). The honing strip (32) is connected to the second rod segment (313). The tensioning assembly (4) further includes an elastic element (42) and an adjusting seat (43). The adjusting seat (43) is movably fitted onto the connecting shaft (1) and threadedly connected to the connecting shaft (1). The elastic element (42) is arranged between the pressure cap (41) and the adjusting seat (43). The two ends of the elastic element (42) abut against the pressure cap (41) and the adjusting seat (43) respectively. The mounting base (2) includes a core (21) and a housing (22). The core (21) is connected to the connecting shaft (1). The core (21) has a receiving groove (211) on the side facing the pressure cap (41). The first rod segment (311) includes a protrusion (3111) that abuts against the groove wall of the receiving groove (211). The housing (22) is fitted onto the core (21) and connected to the core (21). The core (21) has a plurality of first grooves (212). The first grooves (212) correspond one-to-one with the support rod (31). The first grooves (212) communicate with the receiving grooves (211). The groove wall of the first groove (212) and the inner wall of the housing (22) form the mounting groove (23). The side wall of the housing (22) has a through-hole relief groove (221) that communicates with the mounting groove (23). The stop section (312) passes through the mounting groove (23) and the relief groove (221) in sequence. The relief groove (221) has a first groove (212) wall and a second groove wall that are arranged opposite to each other along the width direction of the support rod (31).

2. The honing head (10) according to claim 1, characterized in that, It also includes a fixing bolt, the housing (22) has a through groove (222), the core (21) has a fixing hole (213), and the fixing bolt passes through the through groove (222) and is threadedly connected to the fixing hole (213).

3. The honing head (10) according to claim 1 or 2, characterized in that, The support is provided with a honing frame (33), which is rotatably connected to the support, and the honing strip (32) is connected to the honing frame (33).

4. A honing apparatus (100), characterized in that, include: A power unit (20) includes a power shaft (201); Honing head (10), wherein the honing head (10) is the honing head (10) according to any one of claims 1-3, and the connecting shaft (1) is connected to the power shaft (201).

5. The honing apparatus (100) according to claim 4, characterized in that, It also includes a liquid spraying assembly (40), which includes a liquid spraying pipe (401) and a liquid spraying nozzle (402). The liquid spraying pipe (401) has a first pipe end and a second pipe end. The first pipe end is used to connect to a liquid source, and the second pipe end is connected to the liquid spraying nozzle (402). The liquid spraying nozzle (402) has an opening that extends from the first end (11) of the connecting shaft (1) toward the second end (12).

6. The honing apparatus (100) according to claim 5, characterized in that, A retaining assembly (50) is provided between the spray pipe (401) and the connecting shaft (1). The retaining assembly (50) includes a first bearing (501) and a second bearing (502) connected to each other. The first bearing (501) is fitted onto the power shaft (201), and the second bearing (502) is fitted onto the spray pipe (401).

Images