Polishing device for sealing ring

Abstract

The utility model discloses a polishing device for a sealing ring. The polishing device comprises a supporting rack; the rotating mechanism comprises a clamping device and a driving device, the clamping device is used for fixing the sealing ring, and the power output end of the driving device is assembled with the clamping device and used for driving the clamping device to rotate so as to drive the sealing ring to rotate; the at least one grinding mechanism comprises a grinding assembly and a force compensation mechanism mounted on the grinding assembly; when the grinding assembly makes contact with the sealing ring, the force compensation mechanism is configured to apply supporting force to the grinding assembly, so that the grinding face of the grinding assembly makes contact with the sealing ring all the time, and uniform grinding of the sealing ring is achieved. The working efficiency of polishing the sealing ring is effectively improved, and meanwhile the production quality of the rubber sealing ring is improved; and the grinding force is automatically adjusted through the force compensation mechanism, the grinding uniformity and precision are improved, excessive abrasion and potential damage to the sealing ring are reduced, and the service life of the sealing ring is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to sealing ring processing technical field, concretely relates to a kind of grinding device for sealing ring. BACKGROUND

[0002] Three eccentric butterfly valve is widely used in power, metallurgy, petroleum chemical industry and municipal construction system, as regulating flow and cutting medium use;The sealing ring of three eccentric butterfly valve is very key component in butterfly valve, and three eccentric butterfly valve sealing mainly relies on sealing ring and valve seat surface contact sealing, it directly influences the sealing performance and service life of valve.

[0003] However, the existing three eccentric butterfly valve has the following problems: in the contact process of sealing ring and valve seat surface, if the fillet of sealing ring is too small or has no fillet, the valve seat sealing surface will be scratched during opening and closing, resulting in internal leakage;When the fillet of sealing ring is too large, the contact area between sealing ring and valve seat becomes smaller, and when the pressure is too large, leakage will occur due to local overfitting;And the chamfer of the existing processing technology sealing ring is polished by artificial, not only uneven polishing can occur, but also the polishing efficiency is low.

[0004] Therefore, it is necessary to provide a new way to solve the above technical problems. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a kind of grinding device for sealing ring, effectively improve the working efficiency of sealing ring polishing, improve the production quality of rubber sealing ring;Through force compensation mechanism, the polishing force is automatically adjusted, the uniformity and precision of polishing are improved, the excessive wear and potential damage to sealing ring are reduced, and the service life of sealing ring is prolonged.

[0006] The technical scheme of the utility model is as follows:

[0007] The utility model provides a kind of grinding device for sealing ring, comprising:

[0008] Support frame;

[0009] Rotary mechanism, which is installed on the support frame;The rotary mechanism includes clamping device and driving device, the clamping device fixes sealing ring, and the power output end of the driving device is assembled with the clamping device, to drive the clamping device to rotate to drive the sealing ring to rotate;

[0010] At least one polishing mechanism is installed on the support frame and located beside the clamping device;The polishing mechanism includes grinding assembly and force compensation mechanism installed with the grinding assembly;

[0011] When the grinding assembly is in contact with the sealing ring, the force compensation mechanism is configured to apply a supporting force to the grinding assembly, so that the grinding surface of the grinding assembly is always in contact with the sealing ring, achieving uniform polishing of the sealing ring.

[0012] Preferably, the clamping device comprises:

[0013] A rotating base plate is installed with the driving device;

[0014] At least four sealing ring clamps are installed on the rotating base plate, and the end of the sealing ring clamp is provided with a locking structure for clamping the sealing ring.

[0015] Preferably, the rotating base plate is formed with a track plate, and the sealing ring clamp is assembled with the track plate to achieve movable adjustment.

[0016] Preferably, the track plate extends radially from the center of the rotating base plate to the edge of the rotating base plate.

[0017] Preferably, the locking structure comprises a locking base, a locking sheet and a fastener; wherein,

[0018] The locking base and the locking sheet together form a mounting groove for clamping the inner ring of the sealing ring;

[0019] When the fastener is installed through the locking sheet and the locking base, the locking sheet will press the sealing ring against the locking base

[0020] Preferably, the driving device comprises a driving motor and a transmission assembly, and the transmission assembly comprises a transmission main shaft and a transmission wheel set; wherein,

[0021] The clamping device is installed at the end of the transmission main shaft;

[0022] One end of the transmission wheel set is installed with the power output end of the driving motor, and the other end is installed with the transmission main shaft, achieving power transmission.

[0023] Preferably, the polishing mechanism comprises a polishing rack, and the polishing rack comprises a polishing base and a position adjusting plate movably installed at the end face of the polishing base; wherein,

[0024] The polishing base is fixedly installed with the supporting rack;

[0025] The grinding assembly is movably installed with the position adjusting plate, and the force compensation mechanism is fixedly installed with the position adjusting plate.

[0026] Preferably, the grinding assembly comprises a polishing sand belt, a grinding back plate, and a driving wheel, a tensioning wheel and a polishing driving member installed with the grinding back plate; wherein,

[0027] The power output end of the polishing driving member is connected with the driving wheel; and the tensioning wheel is movably installed on the grinding back plate.

[0028] When the polishing abrasive belt is sleeved outside the driving wheel and the tensioning wheel, the driving wheel drives the polishing abrasive belt to move, and the tensioning wheel is used to tighten or release the polishing abrasive belt.

[0029] Preferably, the force compensation mechanism comprises:

[0030] A connecting plate is fixed on the position adjusting plate;

[0031] A connecting rod is connected with the connecting plate and the grinding assembly at two ends thereof;

[0032] An elastic member is sleeved on the connecting rod and located between the connecting plate and the grinding assembly;

[0033] The grinding assembly can always keep contact with the sealing ring under the elastic force of the elastic member.

[0034] Preferably, the force compensation mechanism comprises:

[0035] A connecting plate is fixed on the position adjusting plate;

[0036] A compensation cylinder is fixed on the connecting plate, and an output end of the compensation cylinder is connected with the grinding assembly;

[0037] The grinding assembly can always keep contact with the sealing ring under the pushing action of the compensation cylinder.

[0038] Compared with the prior art, the polishing device for the sealing ring has the following beneficial effects:

[0039] The polishing device for the sealing ring is provided, the sealing ring is driven to rotate by the clamping device, the grinding surface of the grinding assembly always keeps contact with the polishing edge of the sealing ring under the action of the force compensation mechanism, and the sealing ring is uniformly polished, so that the chamfering of the sealing ring is realized, the working efficiency of the polishing of the sealing ring is effectively improved, the production quality of the rubber sealing ring is improved, the polishing force is automatically adjusted by the force compensation mechanism, the grinding assembly can keep constant polishing force under different working conditions, the uniformity and precision of the polishing are improved, the irregularity of the surface of the sealing ring can be automatically adapted by the grinding assembly, the uneven polishing caused by the uneven surface is avoided, the excessive wear and potential damage of the sealing ring are reduced, the service life of the sealing ring is prolonged, the sealing performance between the sealing ring and the valve seat surface is effectively improved, and the reliability of the three-eccentric butterfly valve is improved.

[0040] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and can be implemented according to the content of the specification, the following is the preferred embodiment of the present application and the detailed description of the drawings as follows. The specific embodiment of the present application is given in detail by the following examples and their drawings. BRIEF DESCRIPTION OF DRAWINGS

[0041] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute undue limitation on the present application. In the drawings:

[0042] Figure 1 It is the overall structure diagram of the polishing device for sealing ring in the embodiment of the present application;

[0043] Figure 2 It is the exploded structure diagram of the polishing device for sealing ring in the embodiment of the present application;

[0044] Figure 3 It is the structure schematic diagram of two polishing mechanisms in the embodiment of the present application;

[0045] Figure 4 It is the structure schematic diagram of the support rack in the embodiment of the present application;

[0046] Figure 5 It is the structure schematic diagram of the clamping device of the rotating mechanism in the embodiment of the present application;

[0047] Figure 6 It is the assembly schematic diagram of the track plate and the sealing ring clamp in the embodiment of the present application;

[0048] Figure 7 It is the structure schematic diagram of the sealing ring clamp in the embodiment of the present application;

[0049] Figure 8 It is the overall structure schematic diagram of the rotating mechanism in the embodiment of the present application;

[0050] Figure 9 It is the A part of the partial sectional view of Figure 8 ;

[0051] Figure 10 It is the schematic diagram of the polishing mechanism in the embodiment of the present application Figure 1 ;

[0052] Figure 11 It is the exploded structure diagram of the polishing mechanism in the embodiment of the present application;

[0053] Figure 12 It is the structure schematic diagram of the grinding assembly in the embodiment of the present application;

[0054] Figure 13 It is a schematic view of the polishing mechanism in the embodiment of the utility model Figure 2 .

[0055] In the figure: 1, polishing device; 2, sealing ring;

[0056] 10, support frame; 11, steel frame; 111, flat plate; 112, trapezoidal steel frame; 1121, first mounting hole; 1122, second mounting hole; 113, transverse rectangular steel; 114, polishing fixed plate; 12, support footing; 13, covering steel plate;

[0057] 20, rotating mechanism; 21, clamping device; 211, rotating base plate; 2111, track plate; 21111, track groove; 21112, sliding block; 2112, fan-shaped bending plate; 212, sealing ring clamp; 2121, clamping end; 21211, locking base; 21212, locking piece; 21213, fastener; 21214, mounting groove; 2122, moving end; 22, driving device; 221, driving motor; 222, transmission assembly; 2221, transmission main shaft; 2222, transmission wheel set; 22221, transmission driving wheel; 22222, transmission driven wheel; 223, sliding bearing set;

[0058] 30, polishing mechanism; 31, grinding assembly; 311, polishing abrasive belt; 312, grinding back plate; 3121, position adjusting groove; 313, driving wheel; 314, tensioning wheel; 315, polishing driving part; 316, first fixed wheel; 317, second fixed wheel; 32, force compensation mechanism; 321, connecting plate; 322, connecting rod; 323, elastic member; 324, adjusting nut; 325, compensation cylinder; 3251, cylinder fixing base; 3252, piston rod; 33, polishing frame; 331, polishing base; 3311, rectangular groove; 332, position adjusting plate; 3321, rectangular boss; 3322, waist-shaped groove; 3323, guide sliding groove. DETAILED DESCRIPTION

[0059] The technical solutions in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0060] In the drawings, for the sake of clarity, the shape and size can be enlarged, and the same reference numerals will be used to indicate the same or similar parts in all the drawings.

[0061] In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are defined with respect to the configuration shown in the drawings and, in particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back, which are relative concepts and thus can change accordingly depending on different positions and different use states, so these or other orientations should not be used to explain as restrictive terms.

[0062] Terms relating to attachment, coupling, and the like (for example, "connected" and "attached") refer to a relationship in which structures are fixed or attached to each other directly or indirectly through intermediate structures, as well as movable or rigid attachment or relationship, unless explicitly stated otherwise.

[0063] The embodiment of the utility model provides a kind of grinding device 1 for sealing ring, as shown in combination Figures 1-13 As shown, comprising:

[0064] Support rack 10;

[0065] Rotary mechanism 20, it is installed on the support rack 10;The rotary mechanism 20 includes clamping device 21 and drive device 22, the clamping device 21 is fixed sealing ring 2, and the power output end of the drive device 22 is assembled with the clamping device 21, to drive the clamping device 21 rotates to drive the sealing ring 2 rotates;

[0066] At least one grinding mechanism 30, it is installed on the support rack 10 and is located on the side of the clamping device 21;The grinding mechanism 30 includes grinding assembly 31 and force compensation mechanism 32 installed with the grinding assembly 31;

[0067] Wherein, when the grinding assembly 31 contacts the sealing ring 2, the force compensation mechanism 32 is configured to apply support force to the grinding assembly 31, so that the grinding surface of the grinding assembly 31 and the sealing ring 2 always keep contact, realize the uniform grinding of sealing ring 2.

[0068] The embodiment drives sealing ring 2 to rotate by clamping device 21, and grinding assembly 31 makes the grinding surface of grinding assembly 31 and the grinding edge of sealing ring 2 always keep contact under the action of force compensation mechanism 32, and grinding is carried out uniformly, the chamfer of sealing ring 2 is realized, the working efficiency of sealing ring 2 grinding is effectively improved, and the grinding effect and grinding quality of sealing ring 2 are improved.

[0069] The embodiment sets the force compensation mechanism 32 to automatically adjust the polishing force, so that the grinding assembly 31 can maintain constant polishing force under different working conditions, improve the uniformity and precision of polishing, and make the grinding assembly 31 automatically adapt to the irregularity of the surface of the sealing ring 2, avoid uneven polishing caused by uneven surface, reduce excessive wear and potential damage to the sealing ring 2, prolong the service life of the sealing ring 2, effectively improve the sealing performance between the sealing ring 2 and the valve seat surface, and improve the reliability of the three-eccentric butterfly valve.

[0070] In the embodiment, two polishing mechanisms 30 can be arranged as shown in Figure 3 to improve polishing quality and efficiency; in some other embodiments, a plurality of polishing mechanisms 30 can also be arranged.

[0071] In some embodiments, in combination with Figure 2 and Figure 4 as shown, the support frame 10 includes a steel frame 11, a support foot 12, and a cover steel plate 13; wherein the steel frame 11 is spliced and welded by multiple sections of rectangular steel and steel plates, which can have high support frame strength and strong reliability; the steel frame 11 is welded with a flat plate 111, which is located at the lowermost layer of the steel frame 11, and the flat plate 111 is provided with a through hole, which can be used to fix the driving device 22 of the rotating mechanism 20 by bolts; the steel frame 11 includes two trapezoidal steel frames 112, which are welded and fixed into a complete steel frame 11 through a transverse rectangular steel 113, forming the main support structure part of the polishing device 1.

[0072] Further, the trapezoidal steel frame 112 is provided with a first mounting hole 1121, which is used for fixed connection with the cover steel plate 13 through a stud.

[0073] Further, the trapezoidal steel frame 112 is welded with a polishing fixing plate 114, which is used to fix the polishing mechanism 30.

[0074] Further, the support foot 12 is fixed on the four bottom corners of the trapezoidal steel frame 112 through a stud, which plays a role in supporting and damping; preferably, the support foot 12 has a part of hard rubber in contact with the ground, which is used to reduce vibration during the operation of the whole machine.

[0075] In some embodiments, in combination with Figures 5-9 as shown, the clamping device 21 includes:

[0076] a rotating base plate 211, which is installed with the power output end of the driving device 22;

[0077] And at least four sealing ring clamps 212 are installed on the rotating base plate 211, and locking structures are arranged at the ends of the sealing ring clamps 212 to clamp the sealing ring 2.

[0078] Further, the rotating base plate 211 is formed with a track plate 2111, and the sealing ring clamp 212 is assembled with the track plate 2111 to achieve movable adjustment.

[0079] Further, the track plate 2111 extends radially from the center of the rotating base plate 211 to the edge of the rotating base plate 211.

[0080] Further, the rotating base plate 211 is disc-shaped, and the rotating base plate 211 includes at least four fan-shaped bent plates 2112 and at least four track plates 2111.

[0081] Specifically, in the embodiment, as shown in the figure, the rotating base plate 211 includes four fan-shaped bent plates 2112 and four track plates 2111, and each track plate 2111 is arranged between two fan-shaped bent plates 2112; the fan-shaped bent plate 2112 and the track plate 2111 can be spliced by screws to form a complete circle, at this time, the four track plates 2111 are arranged in a cross shape.

[0082] The sealing ring clamp 212 is correspondingly arranged with the track plate 2111, and in the embodiment, four sealing ring clamps 212 are correspondingly arranged, and the four sealing ring clamps 212 use the fixing principle of the four-jaw chuck to fix the sealing ring 2 while coinciding with the rotation center of the rotating base plate 211, when the rotating base plate 211 starts to rotate, the sealing ring 2 fixed thereon rotates at the same speed; specifically, each sealing ring clamp 212 includes a clamping end 2121 and a moving end 2122, the clamping end 2121 is used to clamp the sealing ring 2, and the moving end 2122 is movably installed on the track plate 2111; through the arrangement, when chamfering different sealing rings 2, the position of the sealing ring clamp 212 can be adaptively adjusted according to the size of the sealing ring 2, so as to stably clamp the sealing ring 2, which can adapt to sealing rings 2 of different sizes while ensuring the chamfering quality.

[0083] Further, the track plate 2111 is provided with a track groove 21111; specifically, the track groove 21111 is further provided with a sliding block 21112, the sliding block 21112 is clamped in the track groove 21111, and the moving end 2122 is fixedly connected with the sliding block 21112 through screws; the position of the corresponding sealing ring clamp 212 is adjusted by adjusting the position of the sliding block 21112 in the track groove 21111; the structure is simple and the operation is simple and convenient.

[0084] In some embodiments, as shown in Figure 7 and Figure 9 The clamping end 2121 is provided with a locking structure, which includes a locking base 21211, a locking sheet 21212, and a fastener 21213; wherein,

[0085] The locking base 21211 and the locking sheet 21212 jointly form a mounting groove 21214 for clamping with the inner ring of the sealing ring 2.

[0086] When the fastener 21213 passes through the locking sheet 21212 and is installed with the locking base 21211, the locking sheet 21212 presses the sealing ring 2 against the locking base 21211.

[0087] Specifically, the locking base 21211 and the locking sheet 21212 are both provided with locking holes; when the locking sheet 21212 is fixed with the locking base 21211 by the fastener 21213, the mounting groove 21214 is formed between the locking sheet 21212 and the locking base 21211, the bottom wall of the mounting groove 21214 is matched with the inner ring of the sealing ring 2; after the inner ring of the sealing ring 2 is matched with the bottom wall of the mounting groove 21214, the fastener 21213 is locked, at this time the fastener 21213 pushes the locking sheet 21212 towards the locking base 21211, thereby realizing the pressing of the sealing ring 2; wherein the fastener 21213 is a screw or a bolt.

[0088] In some embodiments, as shown in Figure 2 and Figure 8 The driving device 22 includes a driving motor 221 and a transmission assembly 222, the transmission assembly 222 includes a transmission main shaft 2221 and a transmission wheel set 2222; wherein,

[0089] The clamping device 21 is installed at the end of the transmission main shaft 2221;

[0090] One end of the transmission wheel set 2222 is installed with the power output end of the driving motor 221, and the other end is installed with the transmission main shaft 2221, realizing power transmission.

[0091] Specifically, the transmission main shaft 2221 is erected on the upper end of the support frame 10 through a sliding bearing set 223, the sliding bearing set 223 is fixedly installed on the second mounting hole 1122 on the support frame 10 through a bolt; the driving motor 221 is installed on the flat plate 111, and the rotary driving force is transmitted to the transmission main shaft 2221 through the transmission wheel set 2222, and then the transmission main shaft 2221 drives the rotating base plate 211 to rotate at a certain speed; wherein the rotating speed of the rotating base plate 211 can be realized by adjusting the rotating speed of the driving motor 221 through the electric control box.

[0092] The transmission wheel set 2222 includes a transmission driving wheel 22221 and a transmission driven wheel 22222, the transmission driving wheel 22221 is connected to the rotating shaft of the driving motor 221 through a key, the transmission driven wheel 22222 is connected to the transmission main shaft 2221 through a key, so as to realize the rotation of the driving motor 221 to drive the rotation of the transmission main shaft 2221.

[0093] In addition, by fixing the driving motor 221 on the flat plate 111, the chassis weight of the steel frame 11 can be increased, so that the center of the whole machine is closer to the ground, and the whole machine runs more stably and is not easy to overturn.

[0094] Further, the transmission main shaft 2221 extends towards the rotating base plate 211, and the transmission main shaft 2221 is connected to the rotating base plate 211 through a key and a check ring; when the driving motor 221 starts to rotate, the driving motor 221 drives the transmission driving wheel 22221 to rotate, and the transmission main shaft 2221 is driven to rotate through the transmission wheel set 2222, and the rotating base plate 211 is driven to rotate by the transmission main shaft 2221, so as to realize the rotation of the clamping device 21.

[0095] In some embodiments, in combination with Figures 10-13 As shown, the polishing mechanism 30 includes a polishing rack 33, which forms the installation basis of the polishing mechanism 30, and the bottom of the polishing rack 33 is fixedly installed with the polishing fixed plate 114, and the end face of the polishing rack 33 is used to install the grinding assembly 31 and the force compensation mechanism 32.

[0096] Further, the polishing rack 33 includes a polishing base 331 and a position adjusting plate 332 located at the end face of the polishing base 331, the polishing base 331 is fixedly installed with the polishing fixed plate 114, and the position adjusting plate 332 is used to install the grinding assembly 31 and the force compensation mechanism 32; wherein the bottom of the position adjusting plate 332 is formed with a rectangular boss 3321, and the end face of the polishing base 331 is correspondingly formed with a rectangular groove 3311, when the rectangular boss 3321 and the rectangular groove 3311 are matched, the position adjusting plate 332 can move relative to the polishing base 331.

[0097] Further, two waist-shaped grooves 3322 are formed on the position adjusting plate 332, and a plurality of bolts are arranged in the waist-shaped grooves 3322 and connected with the threaded holes in the end face of the polishing base 331. When the position adjusting plate 332 is adjusted in position by sliding through the rectangular boss 3321 and the rectangular groove 3311, the position adjusting plate 332 can be fixed on the end face of the polishing base 331 by the bolts. In this way, the grinding assembly 31 fixed on the position adjusting plate 332 can contact the sealing ring 2 of different sizes, thereby achieving the multi-size polishing function.

[0098] Further, the grinding assembly 31 comprises a polishing belt 311, a grinding back plate 312, and a driving wheel 313, a tensioning wheel 314 and a polishing driving member 315 installed on the grinding back plate 312.

[0099] The grinding back plate 312 is movably installed on the position adjusting plate 332, and the force compensation mechanism 32 is installed beside the grinding back plate 312.

[0100] The driving end of the polishing driving member 315 is connected with the driving wheel 313, and the tensioning wheel 314 is movably installed on the grinding back plate 312.

[0101] When the polishing belt 311 is sleeved outside the driving wheel 313 and the tensioning wheel 314, the driving wheel 313 drives the polishing belt 311 to move, and the tensioning wheel 314 is used to tighten or release the polishing belt 311.

[0102] Further, the grinding assembly 31 further comprises a fixed wheel, which is fixed on the grinding back plate 312 to form a guide structure of the polishing belt 311.

[0103] Specifically, the first fixed wheel 316 and the second fixed wheel 317 are arranged opposite to each other in the embodiment, and the driving wheel 313 and the tensioning wheel 314 are arranged opposite to each other. The position of the second fixed wheel 317 is adjustable, and the contact angle between the polishing belt 311 and the sealing ring can be adjusted by adjusting the position of the second fixed wheel 317 and the position of the tensioning wheel 314, thereby obtaining different chamfers.

[0104] Further, the grinding back plate 312 is provided with a position adjusting groove 3121, and the tensioning wheel 314 is installed on the position adjusting groove 3121 through a stud; after the tensioning wheel 314 is adjusted to a preset position, the tensioning wheel 314 is locked on the grinding back plate 312 through the stud; through the setting, the stability of the installation structure of the tensioning wheel 314 can be effectively improved, and the adjustment mode is simple and fast; further, the position adjusting groove 3121 is further provided with a guide structure on both sides.

[0105] Further, the second fixed wheel 317 is installed on the grinding back plate 312 through an adjusting side plate; by adjusting the installation position of the adjusting side plate and the grinding back plate 312, the position of the second fixed wheel 317 is adjusted.

[0106] In the embodiment, when the polishing mechanism 30 performs polishing, the polishing driving part 315 drives the driving wheel 313 to drive the polishing abrasive belt 311 to move, and the clamping device 21 rotates with the sealing ring 2 under the driving of the driving device 22; at this time, the polishing abrasive belt 311 contacts the sealing ring 2 to polish the acute angle and burrs of the sealing ring 2.

[0107] Further, the grinding assembly 31 is movably installed on the position adjusting plate 332, and the force compensation mechanism 32 is fixedly installed on the position adjusting plate 332. Specifically, the position adjusting plate 332 is formed with a guide sliding groove 3323 near an end of the sealing ring 2, and the grinding back plate 312 is movably installed in the guide sliding groove 3323; when the position adjusting plate 332 drives the polishing abrasive belt 311 to abut against the sealing ring 2, the force compensation mechanism 32 fixed on the position adjusting plate 332 can exert a supporting force on the grinding back plate 312, so that the polishing abrasive belt 311 can always contact the sealing ring 2, uniform polishing is realized, and the polishing quality is improved.

[0108] In some embodiments, as shown in Figure 10 The force compensation mechanism 32 includes:

[0109] A connecting plate 321 fixed on the position adjusting plate 332;

[0110] A connecting rod 322, whose two ends are connected to the connecting plate 321 and the grinding assembly 31 respectively;

[0111] A resilient member 323 sleeved on the connecting rod 322 and located between the connecting plate 321 and the grinding assembly 31;

[0112] Wherein, the grinding assembly 31 can always contact the sealing ring 2 under the elastic force of the resilient member 323.

[0113] Specifically, the connecting plate 321 is fixed to the position adjusting plate 332 by screws or bolts; the connecting rod 322 is a threaded stud, and the connecting rod 322 is installed through the grinding back plate 312 and the connecting plate 321; when the polishing mechanism 30 performs polishing, the polishing abrasive belt 311 is attached to the edge of the sealing ring 2, and the elastic member 323 exerts elastic force on the grinding back plate 312 to provide support, so as to ensure that the polishing abrasive belt 311 is always in contact with the sealing ring 2; wherein the elastic member 323 is a spring.

[0114] Further, it also comprises an adjusting nut 324, which is assembled on the side of the connecting plate 321 and the connecting rod 322; by adjusting the position of the adjusting nut 324, the elastic force of the elastic member 323 can be adjusted; it should be understood that when adjusting the elastic force, it is required that the grinding assembly 31 can always be in contact with the sharp edge of the sealing ring 2, but the contact force cannot be too large, so as to realize the function of polishing the chamfer.

[0115] In still other embodiments, as shown in Figure 13 the force compensation mechanism 32 comprises:

[0116] a connecting plate 321 fixed to the position adjusting plate 332;

[0117] a compensation air cylinder 325 fixed to the connecting plate 321, and the output end of the compensation air cylinder 325 is connected with the grinding assembly 31;

[0118] wherein the grinding assembly 31 can always be in contact with the sealing ring 2 under the pushing action of the compensation air cylinder 325.

[0119] Specifically, the connecting plate 321 is fixed to the position adjusting plate 332 by screws or bolts; the compensation air cylinder 325 comprises a cylinder fixing seat 3251 and a piston rod 3252, the cylinder fixing seat 3251 is fixed to the connecting plate 321, and the piston rod 3252 is connected to the grinding back plate 312; when the polishing mechanism 30 performs polishing, the polishing abrasive belt 311 is attached to the edge of the sealing ring 2, and the piston rod 3252 exerts pushing force on the grinding back plate 312 to provide support, so as to ensure that the polishing abrasive belt 311 is always in contact with the sealing ring 2. It should be understood that the compensation force, i.e. the pushing force, is related to the cylinder diameter of the compensation air cylinder 325 and the pressure filled in the compensation air cylinder 325, i.e. by selecting a suitable compensation air cylinder 325 and adjusting a suitable air pressure, a suitable compensation force can be obtained.

[0120] In still other embodiments, the force compensation mechanism 32 can also be a structure of a servo motor and a ball screw, by controlling the displacement amount of the sliding of the grinding assembly 31 in real time, the contact area between the polishing abrasive belt 311 and the sealing ring 2 is accurately controlled, so as to control the polishing range.

[0121] By setting the force compensation mechanism 32, the grinding assembly 31 can be adapted to different shapes of the sealing ring 2, such as an oval sealing ring, etc., so as to realize the multi-scene application of the polishing mechanism 30.

[0122] Although the embodiments of the present application have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and can be fully applied to various fields suitable for the present application. For those skilled in the art, other modifications can be easily realized, and therefore the present application is not limited to specific details and the figures shown and described herein.

Claims

1. A grinding device for sealing rings, characterized in that, include: Support frame; A rotating mechanism, which is mounted on the support frame; The rotating mechanism includes a clamping device and a driving device. The clamping device fixes the sealing ring, and the power output end of the driving device is assembled with the clamping device to drive the clamping device to rotate so as to drive the sealing ring to rotate. At least one grinding mechanism is mounted on the support frame and located beside the clamping device; the grinding mechanism includes a grinding assembly and a force compensation mechanism mounted on the grinding assembly; When the grinding assembly comes into contact with the sealing ring, the force compensation mechanism is configured to apply a supporting force to the grinding assembly so that the grinding surface of the grinding assembly always remains in contact with the sealing ring, thereby achieving uniform grinding of the sealing ring.

2. The grinding device for sealing rings according to claim 1, characterized in that, The clamping device includes: A rotating base plate is mounted to the drive device; And at least four sealing ring clamps mounted on the rotating base plate, wherein the ends of the sealing ring clamps are provided with locking structures for clamping the sealing rings.

3. The grinding device for sealing rings according to claim 2, characterized in that: The rotating base plate is formed with a track plate, and the sealing ring clamp is assembled with the track plate to achieve movable adjustment.

4. The grinding device for sealing rings according to claim 3, characterized in that: The track plate extends radially from the center of the rotating base plate to the edge of the rotating base plate.

5. The grinding device for sealing rings according to claim 2, characterized in that: The locking structure includes a locking base, a locking plate, and fasteners; wherein... The locking base and the locking piece together form a mounting groove for engaging with the inner ring of the sealing ring; When the fastener is installed through the locking plate and onto the locking base, the locking plate presses the sealing ring against the locking base.

6. The grinding device for sealing rings according to claim 1, characterized in that: The driving device includes a drive motor and a transmission assembly, the transmission assembly including a transmission main shaft and a transmission wheel set; wherein... The clamping device is mounted to the end of the transmission spindle; One end of the transmission wheel assembly is installed at the power output end of the drive motor, and the other end is installed at the transmission main shaft to realize power transmission.

7. The grinding device for sealing rings according to claim 1, characterized in that: The grinding mechanism includes a grinding frame, which includes a grinding base and a position adjustment plate movably mounted to the end face of the grinding base; wherein... The grinding base is fixedly installed with the support frame; The grinding assembly is movably installed with the position adjustment plate; the force compensation mechanism is fixedly installed with the position adjustment plate.

8. The grinding device for sealing rings according to claim 7, characterized in that, The grinding assembly includes: a grinding belt; a grinding back plate; and a drive wheel, a tension wheel, and a grinding drive component mounted on the grinding back plate; wherein... The power output end of the grinding drive is connected to the drive wheel; the tension wheel is movably mounted on the grinding back plate; When the abrasive belt is sleeved on the outside of the drive wheel and the tension wheel, the drive wheel drives the abrasive belt to move, and the tension wheel is used to tension or release the abrasive belt.

9. The grinding device for sealing rings according to claim 7, characterized in that, The force compensation mechanism includes: A connecting plate, which is fixed to the position adjustment plate; A connecting rod, the two ends of which are respectively connected to the connecting plate and the grinding assembly; An elastic element is sleeved on the connecting rod and located between the connecting plate and the grinding assembly; The grinding assembly is able to maintain contact with the sealing ring under the elastic force of the elastic element.

10. The grinding device for sealing rings according to claim 7, characterized in that, The force compensation mechanism includes: A connecting plate, which is fixed to the position adjustment plate; A compensating cylinder is fixed to the connecting plate, and the output end of the compensating cylinder is connected to the grinding assembly. The grinding assembly is able to maintain contact with the sealing ring under the pushing action of the compensating cylinder.

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