CN214817686U - Valve grinding tool - Google Patents
Valve grinding tool Download PDFInfo
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- CN214817686U CN214817686U CN202121031372.2U CN202121031372U CN214817686U CN 214817686 U CN214817686 U CN 214817686U CN 202121031372 U CN202121031372 U CN 202121031372U CN 214817686 U CN214817686 U CN 214817686U
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Abstract
The utility model discloses a valve grinding tool, which comprises a transmission rod, a driving device and an electric grinding head, wherein one end of the transmission rod is connected with the driving device, the other end of the transmission rod is provided with the electric grinding head, and the driving device drives the electric grinding head to extend into a sleeve of a valve through the transmission rod to rotate so as to grind the valve; the transmission rod can be arranged in a telescopic manner, or the transmission rod comprises a plurality of sections which are detachably connected so as to realize the adjustment of the whole length of the transmission rod; the utility model provides a valve grinding tool is under the telescopic prerequisite of not dismantling, and the transfer line can be adjusted by oneself according to the difference of valve door pole sleeve length, and then grinds valve door pole sleeve, guarantees the maintenance quality, improves the efficiency of overhauing the valve.
Description
Technical Field
The utility model relates to a valve overhauls technical field, specifically speaking relates to a valve grinding tool.
Background
The discovery is examined and repaired to the valve in, and the door pole of some valves is very long, and the sleeve combination that the door pole corresponds is corresponding also can be very long, if sleeve inner wall needs clearance, grinding, the hand is difficult to operate in the sleeve, just must pull down the sleeve one by one, and this operation is comparatively loaded down with trivial details, and work load is huge, destroys the sleeve in dismantling the in-process easily moreover, brings very big inconvenience for the maintenance. The existing technical scheme mostly uses the improvement of grinding precision as an optimization direction, for example: the application number is chinese patent of application number CN201721030185.6, discloses a modular valve grinding instrument, including grinding pole, drive arrangement and grinding head, drive arrangement is connected to the one end of grinding pole, and other end fixed mounting grinding head, drive arrangement stretch into the disk seat internal rotation of valve through grinding pole drive grinding head and grind, still include first location external member and second location external member, first location external member and second location external member detachable link together, first location external member and second location external member inside have the through-hole that is used for the grinding pole to pass respectively, first location external member supports and leans on the valve body of valve, the one end setting that second location external member is close to the grinding head is with the up-and-down motion of restriction grinding head. The combined valve grinding tool has the characteristics of low manufacturing cost, convenient matching and combination use, high grinding precision and the like, but the length of the valve grinding tool is rarely optimized or improved in the prior art.
In view of this, the present invention is especially provided.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in overcoming prior art's is not enough, provides a valve grinding tool, and this valve grinding tool is under the telescopic prerequisite of not dismantling, and the transfer line can be adjusted by oneself according to the difference of valve door pole sleeve length, and then grinds valve door pole sleeve, guarantees the maintenance quality, improves the efficiency of overhauing the valve.
In order to solve the technical problem, the utility model adopts the following basic concept:
a valve grinding tool comprises a transmission rod, a driving device and an electric grinding head, wherein one end of the transmission rod is connected with the driving device, the electric grinding head is installed at the other end of the transmission rod, and the driving device drives the electric grinding head to extend into a sleeve of a valve to rotate through the transmission rod for grinding; the transmission rod can be arranged in a telescopic mode, or the transmission rod comprises multiple sections which are detachably connected to each other so as to adjust the whole length of the transmission rod.
Furthermore, the transmission rods in multiple sections are fixedly connected in a threaded connection and/or clamping connection mode.
Furthermore, one end of each transmission rod is provided with an internal thread, the end part of each adjacent transmission rod is provided with an external thread, and the two adjacent transmission rods are connected through the internal thread and the external thread.
Further, a thread groove is formed in one end of the transmission rod, and the inner peripheral wall of the thread groove is provided with the internal thread; the thread groove and the transmission rod are coaxially arranged.
Preferably, a threaded rod capable of extending into the threaded groove is arranged at the end part of the adjacent transmission rod, and the outer peripheral wall of the threaded rod is provided with the external thread; the threaded rod and the transmission rod are coaxially arranged.
Preferably, two adjacent sections of transmission rods are in threaded connection through the thread groove and the threaded rod.
Furthermore, a plurality of clamping jaws are arranged on the peripheral wall of one end of the transmission rod, the clamping jaws are arranged on the peripheral wall of the other end of the transmission rod, clamping grooves are formed in the peripheral wall of the other end of the transmission rod and correspond to the clamping jaws, and the clamping jaws and the clamping grooves are clamped and fixed between the two adjacent sections of transmission rods.
Furthermore, a limiting structure used for ensuring that the transmission rod is located at the central position in the sleeve is arranged on the transmission rod.
Furthermore, the limiting structure is a frustum-shaped positioning block arranged around the periphery of the transmission rod, the inner diameter of the sleeve is larger than the minimum outer diameter of the frustum-shaped positioning block and smaller than the maximum outer diameter of the positioning block, and the electric grinding head extends into the valve and abuts against the end of the sleeve.
Furthermore, the positioning block is movably sleeved on the peripheral wall of the transmission rod.
Furthermore, the transmission rod is provided with an outer sleeve rod and an inner telescopic rod which are arranged in a telescopic mode, the inner telescopic rod is connected in an inner cavity of the outer sleeve rod in a sliding mode, and a butt joint groove is formed in the outer side of the inner telescopic rod.
Preferably, the outer loop bar is provided with a rotating fixer, one end of the rotating fixer penetrates through the outer loop bar and can extend to abut against the abutting groove, and the rotating fixer is screwed to adjust the relative position of the outer loop bar and the inner loop bar, so that the whole length of the transmission rod is adjusted.
Further, the electric grinding head is detachably connected with the transmission rod into a whole through a connecting piece.
After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has:
the utility model discloses the scalable setting of transfer line, perhaps the transfer line includes detachably between multistage, the multistage and connects in order to realize the regulation to the whole length of transfer line, and such setting makes under the telescopic prerequisite of not dismantling, and the transfer line can be adjusted by oneself according to the difference of valve door pole sleeve length, and then grinds valve door pole sleeve, guarantees the maintenance quality, improves the efficiency of overhauing the valve.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic structural view of a valve grinding tool according to an embodiment of the present invention;
fig. 2 is a first schematic view of a connection structure between transmission rods according to an embodiment of the present invention;
fig. 3 is a schematic view of a connection structure between transmission rods according to an embodiment of the present invention;
fig. 4 is a third schematic view of the connection structure between the transmission rods in the embodiment of the present invention;
fig. 5 is a schematic view of a connection structure between transmission rods according to an embodiment of the present invention;
fig. 6 is a schematic view of a connection structure between the transmission rods according to an embodiment of the present invention.
In the figure:
1. a transmission rod; 2. an electric drill joint; 3. an electric grinding head; 4. a thread groove; 5. a threaded rod; 6. a claw; 7. a card slot; 8. positioning blocks; 9. an outer loop bar; 10. the rod is retracted; 11. the holder is rotated.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in further detail with reference to examples.
As shown in fig. 1, a valve grinding tool comprises a transmission rod 1, a driving device and an electric grinding head 3, wherein one end of the transmission rod 1 is connected with the driving device, the other end of the transmission rod 1 is provided with the electric grinding head 3, and the driving device drives the electric grinding head 3 to extend into a sleeve of a valve through the transmission rod 1 to rotate so as to grind the valve; the telescopic setting of transfer line 1, perhaps transfer line 1 includes detachably between multistage, the multistage and connects in order to realize the regulation to 1 whole length of transfer line, and this instrument is under the telescopic prerequisite of not dismantling, and the transfer line can be adjusted by oneself according to the difference of valve door pole sleeve length, and then grinds valve door pole sleeve, guarantees the maintenance quality, improves the efficiency of overhauing the valve.
The tail part of the transmission rod 1 can be made into a bayonet corresponding to the pistol electric drill, and the pistol electric drill can be used for grinding, so that the working efficiency can be improved. The driving device comprises an electric drill joint 2 arranged at the tail part of the transmission rod 1 and used for being connected with an electric drill.
Further, as shown in fig. 2 to 4, the transmission rods 1 are connected and fixed by a threaded connection and/or a snap connection. It can be understood that the transmission rods 1 in multiple sections can be connected and fixed in a single threaded connection mode; or the transmission rods 1 in multiple sections can be connected and fixed in a single clamping connection mode; or, the transmission rods 1 can be fixedly connected in a connecting mode of threaded connection and clamping connection combination, so that the firmness of connection between the transmission rods 1 is enhanced.
Furthermore, one end of each transmission rod 1 is provided with an internal thread, the end part of each adjacent transmission rod 1 is provided with an external thread, and the two adjacent transmission rods 1 are in threaded connection through the internal thread and the external thread. It can be understood that, if one end of any one of the transmission rods 1 is provided with an internal thread, and if the end of any adjacent transmission rod 1 is provided with an external thread, the connection between the adjacent transmission rods 1 can be realized, so as to adjust the total length of the transmission rod 1.
Further, a thread groove 4 is formed in one end of the transmission rod 1, and the inner peripheral wall of the thread groove 4 is provided with the internal thread; the thread groove 4 is arranged coaxially with the transmission rod 1.
Preferably, a threaded rod 5 which can extend into the threaded groove 4 is arranged at the end part of the adjacent transmission rod 1, and the outer peripheral wall of the threaded rod 5 is provided with the external thread; the threaded rod 5 and the transmission rod 1 are coaxially arranged.
Preferably, two adjacent sections of the transmission rods 1 are in threaded connection through the thread grooves 4 and the threaded rods 5.
Further, set up a plurality of jack catchs 6 on the periphery wall of the one end of transfer line 1, it is adjacent be provided with on the periphery wall of the other end of transfer line 1 with jack catch 6 corresponds the draw-in groove 7 that sets up, passes through between two adjacent sections transfer lines 1 jack catch 6 and draw-in groove 7 joint are fixed. It can be understood that the technical scheme is applicable to any connection mode of the clamping structure. Meanwhile, it can be understood that the clamping jaws 6 or the clamping grooves 7 can be arranged in plurality, so that firmness between the adjacent transmission rods 1 is enhanced.
Furthermore, the transmission rod 1 is provided with a limiting structure for ensuring that the transmission rod 1 is located at the central position in the sleeve.
Furthermore, the limiting structure is a frustum-shaped positioning block 8 arranged around the periphery of the transmission rod 1, the inner diameter of the sleeve is larger than the minimum outer diameter of the frustum-shaped positioning block 8 and smaller than the maximum outer diameter of the positioning block 8, and the electric grinding head 3 extends into the valve and the positioning block 8 abuts against the end of the sleeve.
Furthermore, the positioning block 8 is movably sleeved on the peripheral wall of the transmission rod 1.
The clearance between the positioning block 8 and the transmission rod 1 is less than 0.04mm, and preferably, the clearance between the positioning block 8 and the transmission rod 1 is less than 0.02 mm. The positioning piece is made of polytetrafluoroethylene. The positioning block 8 made of the material has reliable strength and cannot damage related equipment. The locating block 8 adopts a conical structure, and is pushed against the end part of the sleeve during grinding, so that the grinding transmission rod 1 can be ensured to be centered, and the conical design can also meet the requirements of different inner diameters of the door rod sleeve.
Further, the transmission rod 1 is provided with an outer sleeve rod 9 and an inner telescopic rod 10 which are telescopically arranged, the inner telescopic rod 10 is slidably connected in an inner cavity of the outer sleeve rod 9, and an abutting groove is arranged on the outer side of the inner telescopic rod 10. Preferably, the outer sleeve 9 is provided with a rotating fixer 11, one end of the rotating fixer 11 penetrates through the outer sleeve 9 and can extend to abut against the abutting groove, and the rotating fixer 11 is screwed to adjust the relative positions of the outer sleeve 9 and the inner telescopic rod 10, so as to adjust the overall length of the transmission rod 1.
It should be understood that the technical solutions regarding the outer sleeved rod 9 and the inner telescopic rod 10 may also be the following embodiments. As shown in fig. 5 and 6, the transmission rod 1 has an outer telescopic rod 9 and an inner telescopic rod 10, and the inner telescopic rod 10 is slidably connected in an inner cavity of the outer telescopic rod 9. Preferably, the outer loop bar 9 is provided with a rotary fixer 11, the outer loop bar 9 is provided with a hole penetrating through the outer loop bar 9, the inner contraction rod 10 is also provided with a hole penetrating through the inner contraction rod 10, one end of the rotary fixer 11 penetrates through the outer loop bar 9 and the inner contraction rod 10 through the hole of the outer loop bar 9 and the hole of the inner contraction rod 10, a plurality of such holes are arranged in the longitudinal direction of the outer loop bar 9, of course, the inner contraction rod 10 is correspondingly provided with a plurality of such holes in the longitudinal direction, and by screwing the holes at different longitudinal positions, the rotary fixer 11 adjusts the relative positions of the outer loop bar 9 and the inner contraction rod 10, so as to adjust the overall length of the transmission rod 1. The rotating holder 11 may be a locking screw or a bolt.
The telescopic rod 10 can move up and down along the extension direction of the outer loop bar 9 to adjust to the required working height, and then the sleeve or the valve can be overhauled and cleaned by matching with the use of the positioning block 8. Of course, the outer sleeved rod 9 and the inner telescopic rod 10 can be directly disassembled or disassembled, so that the length of the existing transmission rod 1 is shortened, and the existing transmission rod is more suitable for the maintenance work of a sleeve or a valve, and the maintenance work is not limited herein.
Further, the electric grinding head 3 is detachably connected with the transmission rod 1 into a whole through a connecting piece. The connecting piece can be a locking screw or a bolt, a first through hole through which the locking screw or the bolt passes is formed in the electric grinding head 3, a thread groove is formed in the end part of the section of the transmission rod 1 which is in contact with and connected with the electric grinding head 3, and the thread groove and the transmission rod 1 are coaxially arranged; the electric grinding head 3 and the transmission rod 1 are connected into a whole through a locking screw or a bolt.
It should be understood that the shape of the transmission rod 1 is not limited in the embodiment, and it may be a cylindrical shape, a circular tubular shape, an oval tubular shape, a square tubular shape, or the like. The transmission rod 1 can be made of stainless steel. The size of the inner diameter of the transmission rod 1 can be adjusted according to the size of the inner diameter of the sleeve or according to the requirements of the specific implementation method.
This embodiment 1 scalable setting of transfer line, perhaps transfer line 1 includes detachably between multistage, the multistage and connects in order to realize the regulation to 1 whole length of transfer line, and such setting up makes under the telescopic prerequisite of not dismantling, and the transfer line can be adjusted by oneself according to the difference of valve door pole sleeve length, and then grinds valve door pole sleeve, guarantees the maintenance quality, improves the efficiency of overhauing the valve.
Example one
As shown in fig. 1, a valve grinding tool comprises a transmission rod 1, a driving device and an electric grinding head 3, wherein one end of the transmission rod 1 is connected with the driving device, the other end of the transmission rod 1 is provided with the electric grinding head 3, and the driving device drives the electric grinding head 3 to extend into a sleeve of a valve through the transmission rod 1 to rotate so as to grind the valve; the transmission rod 1 comprises a plurality of sections and is detachably connected among the sections to adjust the overall length of the transmission rod 1, so that the valve grinding tool can be automatically adjusted according to different valve rod sizes and sleeve lengths on the premise of not disassembling the sleeve, and then the valve rod sleeve is ground, the maintenance quality is guaranteed, and the efficiency of valve maintenance is improved. The tail part of the transmission rod 1 can be made into a bayonet corresponding to the pistol electric drill, and the pistol electric drill can be used for grinding, so that the working efficiency can be improved.
As shown in fig. 2 and 3, further, the transmission rods 1 are connected and fixed by a threaded connection. It can be understood that the transmission rods 1 in multiple sections can be connected and fixed in a single threaded connection mode, so that the connection firmness of the transmission rods 1 in multiple sections is enhanced.
Furthermore, one end of each transmission rod 1 is provided with an internal thread, the end part of each adjacent transmission rod 1 is provided with an external thread, and the two adjacent transmission rods 1 are in threaded connection through the internal thread and the external thread. It can be understood that, if one end of any one of the transmission rods 1 is provided with an internal thread, and if the end of any adjacent transmission rod 1 is provided with an external thread, the connection between the adjacent transmission rods 1 can be realized, so as to adjust the total length of the transmission rod 1.
Further, a thread groove 4 is formed in one end of the transmission rod 1, and the inner peripheral wall of the thread groove 4 is provided with the internal thread; the thread groove 4 is arranged coaxially with the transmission rod 1.
Preferably, a threaded rod 5 which can extend into the threaded groove 4 is arranged at the end part of the adjacent transmission rod 1, and the outer peripheral wall of the threaded rod 5 is provided with the external thread; the threaded rod 5 and the transmission rod 1 are coaxially arranged.
Preferably, two adjacent sections of the transmission rods 1 are in threaded connection through the thread grooves 4 and the threaded rods 5.
Furthermore, the transmission rod 1 is provided with a limiting structure for ensuring that the transmission rod 1 is located at the central position in the sleeve.
Furthermore, the limiting structure is a frustum-shaped positioning block 8 arranged around the periphery of the transmission rod 1, the inner diameter of the sleeve is larger than the minimum outer diameter of the frustum-shaped positioning block 8 and smaller than the maximum outer diameter of the positioning block 8, and the electric grinding head 3 extends into the valve and the positioning block 8 abuts against the end of the sleeve.
Furthermore, the positioning block 8 is movably sleeved on the peripheral wall of the transmission rod 1.
The clearance between the positioning block 8 and the transmission rod 1 is less than 0.04mm, and preferably, the clearance between the positioning block 8 and the transmission rod 1 is less than 0.02 mm. The positioning piece is made of polytetrafluoroethylene. The positioning block 8 made of the material has reliable strength and cannot damage related equipment. The locating block 8 adopts a conical structure, and is pushed against the end part of the sleeve during grinding, so that the grinding transmission rod 1 can be ensured to be centered, and the conical design can also meet the requirements of different inner diameters of the door rod sleeve.
Further, the electric grinding head 3 is detachably connected with the transmission rod 1 into a whole through a connecting piece. The connecting piece can be a locking screw or a bolt, a first through hole through which the locking screw or the bolt passes is formed in the electric grinding head 3, a thread groove is formed in the end part of the section of the transmission rod 1 which is in contact with and connected with the electric grinding head 3, and the thread groove and the transmission rod 1 are coaxially arranged; the electric grinding head 3 and the transmission rod 1 are connected into a whole through a locking screw or a bolt.
It should be understood that the shape of the transmission rod 1 is not limited in the embodiment, and it may be a cylindrical shape, a circular tubular shape, an oval tubular shape, a square tubular shape, or the like. The transmission rod 1 can be made of stainless steel. The size of the inner diameter of the transmission rod 1 can be adjusted according to the size of the inner diameter of the sleeve or according to the requirements of the specific implementation method.
Example two
As shown in fig. 1, a valve grinding tool comprises a transmission rod 1, a driving device and an electric grinding head 3, wherein one end of the transmission rod 1 is connected with the driving device, the other end of the transmission rod 1 is provided with the electric grinding head 3, and the driving device drives the electric grinding head 3 to extend into a sleeve of a valve through the transmission rod 1 to rotate so as to grind the valve; the transmission rod 1 comprises a plurality of sections and is detachably connected among the sections to adjust the overall length of the transmission rod 1, so that the valve grinding tool can be automatically adjusted according to different valve rod sizes and sleeve lengths on the premise of not disassembling the sleeve, and then the valve rod sleeve is ground, the maintenance quality is guaranteed, and the efficiency of valve maintenance is improved. The tail part of the transmission rod 1 can be made into a bayonet corresponding to the pistol electric drill, and the pistol electric drill can be used for grinding, so that the working efficiency can be improved.
As shown in fig. 2 to 4, further, the transmission rods 1 are connected and fixed by a threaded connection and/or a snap connection. It can be understood that the transmission rods 1 in multiple sections can be connected and fixed in a single threaded connection mode; or the transmission rods 1 in multiple sections can be connected and fixed in a single clamping connection mode; or, the transmission rods 1 can be fixedly connected in a connecting mode of threaded connection and clamping connection combination, so that the firmness of connection between the transmission rods 1 is enhanced.
Furthermore, one end of each transmission rod 1 is provided with an internal thread, the end part of each adjacent transmission rod 1 is provided with an external thread, and the two adjacent transmission rods 1 are in threaded connection through the internal thread and the external thread. It can be understood that, if one end of any one of the transmission rods 1 is provided with an internal thread, and if the end of any adjacent transmission rod 1 is provided with an external thread, the connection between the adjacent transmission rods 1 can be realized, so as to adjust the total length of the transmission rod 1.
Further, a thread groove 4 is formed in one end of the transmission rod 1, and the inner peripheral wall of the thread groove 4 is provided with the internal thread; the thread groove 4 is arranged coaxially with the transmission rod 1.
Preferably, a threaded rod 5 which can extend into the threaded groove 4 is arranged at the end part of the adjacent transmission rod 1, and the outer peripheral wall of the threaded rod 5 is provided with the external thread; the threaded rod 5 and the transmission rod 1 are coaxially arranged.
Preferably, two adjacent sections of the transmission rods 1 are in threaded connection through the thread grooves 4 and the threaded rods 5.
Further, set up a plurality of jack catchs 6 on the periphery wall of the one end of transfer line 1, it is adjacent be provided with on the periphery wall of the other end of transfer line 1 with jack catch 6 corresponds the draw-in groove 7 that sets up, passes through between two adjacent sections transfer lines 1 jack catch 6 and draw-in groove 7 joint are fixed. It can be understood that the technical scheme is applicable to any connection mode of the clamping structure. Meanwhile, it can be understood that the clamping jaws 6 or the clamping grooves 7 can be arranged in plurality, so that firmness between the adjacent transmission rods 1 is enhanced.
Furthermore, the transmission rod 1 is provided with a limiting structure for ensuring that the transmission rod 1 is located at the central position in the sleeve.
Furthermore, the limiting structure is a frustum-shaped positioning block 8 arranged around the periphery of the transmission rod 1, the inner diameter of the sleeve is larger than the minimum outer diameter of the frustum-shaped positioning block 8 and smaller than the maximum outer diameter of the positioning block 8, and the electric grinding head 3 extends into the valve and the positioning block 8 abuts against the end of the sleeve.
Furthermore, the positioning block 8 is movably sleeved on the peripheral wall of the transmission rod 1.
The clearance between the positioning block 8 and the transmission rod 1 is less than 0.04mm, and preferably, the clearance between the positioning block 8 and the transmission rod 1 is less than 0.02 mm. The positioning piece is made of polytetrafluoroethylene. The positioning block 8 made of the material has reliable strength and cannot damage related equipment. The locating block 8 adopts a conical structure, and is pushed against the end part of the sleeve during grinding, so that the grinding transmission rod 1 can be ensured to be centered, and the conical design can also meet the requirements of different inner diameters of the door rod sleeve.
Further, the electric grinding head 3 is detachably connected with the transmission rod 1 into a whole through a connecting piece. The connecting piece can be a locking screw or a bolt, a first through hole through which the locking screw or the bolt passes is formed in the electric grinding head 3, a thread groove is formed in the end part of the section of the transmission rod 1 which is in contact with and connected with the electric grinding head 3, and the thread groove and the transmission rod 1 are coaxially arranged; the electric grinding head 3 and the transmission rod 1 are connected into a whole through a locking screw or a bolt.
It should be understood that the shape of the transmission rod 1 is not limited in the embodiment, and it may be a cylindrical shape, a circular tubular shape, an oval tubular shape, a square tubular shape, or the like. The transmission rod 1 can be made of stainless steel. The size of the inner diameter of the transmission rod 1 can be adjusted according to the size of the inner diameter of the sleeve or according to the requirements of the specific implementation method.
EXAMPLE III
As shown in fig. 1, a valve grinding tool comprises a transmission rod 1, a driving device and an electric grinding head 3, wherein one end of the transmission rod 1 is connected with the driving device, the other end of the transmission rod 1 is provided with the electric grinding head 3, and the driving device drives the electric grinding head 3 to extend into a sleeve of a valve through the transmission rod 1 to rotate so as to grind the valve; the transmission rod 1 can be telescopically arranged to adjust the whole length of the transmission rod 1, so that the valve grinding tool can be automatically adjusted according to different valve rod sizes and sleeve lengths on the premise of not disassembling the sleeve, the sleeve of the valve rod is ground, the maintenance quality is guaranteed, and the efficiency of valve maintenance is improved. The tail part of the transmission rod 1 can be made into a bayonet corresponding to the pistol electric drill, and the pistol electric drill can be used for grinding, so that the working efficiency can be improved.
Furthermore, the transmission rod 1 is provided with a limiting structure for ensuring that the transmission rod 1 is located at the central position in the sleeve.
Furthermore, the limiting structure is a frustum-shaped positioning block 8 arranged around the periphery of the transmission rod 1, the inner diameter of the sleeve is larger than the minimum outer diameter of the frustum-shaped positioning block 8 and smaller than the maximum outer diameter of the positioning block 8, and the electric grinding head 3 extends into the valve and the positioning block 8 abuts against the end of the sleeve.
Furthermore, the positioning block 8 is movably sleeved on the peripheral wall of the transmission rod 1.
The clearance between the positioning block 8 and the transmission rod 1 is less than 0.04mm, and preferably, the clearance between the positioning block 8 and the transmission rod 1 is less than 0.02 mm. The positioning piece is made of polytetrafluoroethylene. The positioning block 8 made of the material has reliable strength and cannot damage related equipment. The locating block 8 adopts a conical structure, and is pushed against the end part of the sleeve during grinding, so that the grinding transmission rod 1 can be ensured to be centered, and the conical design can also meet the requirements of different inner diameters of the door rod sleeve.
Further, the transmission rod 1 is provided with an outer sleeve rod 9 and an inner telescopic rod 10 which are telescopically arranged, the inner telescopic rod 10 is slidably connected in an inner cavity of the outer sleeve rod 9, and an abutting groove is arranged on the outer side of the inner telescopic rod 10. Preferably, the outer sleeve 9 is provided with a rotating fixer 11, one end of the rotating fixer 11 penetrates through the outer sleeve 9 and can extend to abut against the abutting groove, and the rotating fixer 11 is screwed to adjust the relative positions of the outer sleeve 9 and the inner telescopic rod 10, so as to adjust the overall length of the transmission rod 1.
It should be understood that the technical solutions regarding the outer sleeved rod 9 and the inner telescopic rod 10 may also be the following embodiments. As shown in fig. 5 and 6, the transmission rod 1 has an outer telescopic rod 9 and an inner telescopic rod 10, and the inner telescopic rod 10 is slidably connected in an inner cavity of the outer telescopic rod 9. Preferably, the outer loop bar 9 is provided with a rotary fixer 11, the outer loop bar 9 is provided with a hole penetrating through the outer loop bar 9, the inner contraction rod 10 is also provided with a hole penetrating through the inner contraction rod 10, one end of the rotary fixer 11 penetrates through the outer loop bar 9 and the inner contraction rod 10 through the hole of the outer loop bar 9 and the hole of the inner contraction rod 10, a plurality of such holes are arranged in the longitudinal direction of the outer loop bar 9, of course, the inner contraction rod 10 is correspondingly provided with a plurality of such holes in the longitudinal direction, and by screwing the holes at different longitudinal positions, the rotary fixer 11 adjusts the relative positions of the outer loop bar 9 and the inner contraction rod 10, so as to adjust the overall length of the transmission rod 1. The rotating holder 11 may be a locking screw or a bolt.
The telescopic rod 10 can move up and down along the extension direction of the outer loop bar 9 to adjust to the required working height, and then the sleeve or the valve can be overhauled and cleaned by matching with the use of the positioning block 8. Of course, the outer sleeved rod 9 and the inner telescopic rod 10 can be directly disassembled or disassembled, so that the length of the existing transmission rod 1 is shortened, and the existing transmission rod is more suitable for the maintenance work of a sleeve or a valve, and the maintenance work is not limited herein.
Further, the electric grinding head 3 is detachably connected with the transmission rod 1 into a whole through a connecting piece. The connecting piece can be a locking screw or a bolt, a first through hole through which the locking screw or the bolt passes is formed in the electric grinding head 3, a thread groove is formed in the end part of the section of the transmission rod 1 which is in contact with and connected with the electric grinding head 3, and the thread groove and the transmission rod 1 are coaxially arranged; the electric grinding head 3 and the transmission rod 1 are connected into a whole through a locking screw or a bolt.
It should be understood that the shape of the transmission rod 1 is not limited in the embodiment, and it may be a cylindrical shape, a circular tubular shape, an oval tubular shape, a square tubular shape, or the like. The transmission rod 1 can be made of stainless steel. The size of the inner diameter of the transmission rod 1 can be adjusted according to the size of the inner diameter of the sleeve or according to the requirements of the specific implementation method.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.
Claims (10)
1. A valve grinding tool is characterized by comprising a transmission rod, a driving device and an electric grinding head, wherein one end of the transmission rod is connected with the driving device, the electric grinding head is installed at the other end of the transmission rod, and the driving device drives the electric grinding head to extend into a sleeve of a valve through the transmission rod to rotate so as to grind the valve; the transmission rod can be arranged in a telescopic mode, or the transmission rod comprises multiple sections which are detachably connected to each other so as to adjust the whole length of the transmission rod.
2. The valve grinding tool of claim 1, wherein: the transmission rods are fixedly connected in a threaded connection mode and/or a clamping connection mode.
3. The valve grinding tool of claim 2, wherein: one end of each transmission rod is provided with an internal thread, the end part of each adjacent transmission rod is provided with an external thread, and the adjacent two sections of transmission rods are in threaded connection through the internal thread and the external thread.
4. The valve grinding tool of claim 3, wherein: a thread groove is formed in one end of the transmission rod, and the inner peripheral wall of the thread groove is provided with the internal thread; the thread groove and the transmission rod are coaxially arranged;
a threaded rod capable of extending into the threaded groove is arranged at the end part of the adjacent transmission rod, and the outer peripheral wall of the threaded rod is provided with the external thread; the threaded rod and the transmission rod are coaxially arranged;
and two adjacent sections of transmission rods are in threaded connection through the thread groove and the threaded rod.
5. The valve grinding tool of any one of claims 1-4, wherein: the clamping jaw is characterized in that a plurality of clamping jaws are arranged on the peripheral wall of one end of the transmission rod and are adjacent to each other, a clamping groove corresponding to each clamping jaw is formed in the peripheral wall of the other end of the transmission rod, and the clamping jaws and the clamping grooves are clamped and fixed between two adjacent sections of transmission rods.
6. The valve grinding tool of claim 1, wherein: and the transmission rod is provided with a limiting structure used for ensuring that the transmission rod is positioned at the central position in the sleeve.
7. The valve grinding tool of claim 6, wherein: the limiting structure is a frustum-shaped positioning block arranged around the periphery of the transmission rod, the minimum outer diameter of the frustum-shaped positioning block, which is larger than the inner diameter of the sleeve, is smaller than the maximum outer diameter of the positioning block, and the electric grinding head extends into the valve and is propped against the end part of the sleeve by the positioning block.
8. The valve grinding tool of claim 7, wherein: the locating block is movably sleeved on the peripheral wall of the transmission rod.
9. The valve grinding tool of claim 1, wherein: the transmission rod is provided with an outer sleeve rod and an inner telescopic rod which are arranged in a telescopic mode, the inner telescopic rod is connected in an inner cavity of the outer sleeve rod in a sliding mode, and a butting groove is formed in the outer side of the inner telescopic rod;
the outer loop bar is provided with a rotary fixer, one end of the rotary fixer penetrates through the outer loop bar and can extend to abut against the abutting groove, and the relative position of the outer loop bar and the inner loop bar is adjusted by screwing the rotary fixer, so that the whole length of the transmission rod is adjusted.
10. The valve grinding tool of any one of claims 1-4, 6-9, wherein: the electric grinding head is detachably connected with the transmission rod into a whole through a connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121031372.2U CN214817686U (en) | 2021-05-14 | 2021-05-14 | Valve grinding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121031372.2U CN214817686U (en) | 2021-05-14 | 2021-05-14 | Valve grinding tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214817686U true CN214817686U (en) | 2021-11-23 |
Family
ID=78774119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121031372.2U Active CN214817686U (en) | 2021-05-14 | 2021-05-14 | Valve grinding tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214817686U (en) |
-
2021
- 2021-05-14 CN CN202121031372.2U patent/CN214817686U/en active Active
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