CN114473080A - Elastic pre-tightening clamp for end face of gear shaft of speed reducer - Google Patents
Elastic pre-tightening clamp for end face of gear shaft of speed reducer Download PDFInfo
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- CN114473080A CN114473080A CN202210159708.6A CN202210159708A CN114473080A CN 114473080 A CN114473080 A CN 114473080A CN 202210159708 A CN202210159708 A CN 202210159708A CN 114473080 A CN114473080 A CN 114473080A
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 25
- 238000009434 installation Methods 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
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- 238000001125 extrusion Methods 0.000 description 5
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- 210000003781 tooth socket Anatomy 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
- B23F23/06—Chucking arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses an elastic pre-tightening clamp for an end face of a gear shaft of a speed reducer, and relates to the technical field of speed reducer processing equipment. By adopting the technical scheme, the contact friction force between the teeth on the end face of the end face driving gear sleeve and the end face of the gear shaft can be increased under the condition of not influencing the positioning precision of the double tips; the end face drives the gear sleeve to move axially, and the opening groove-shaped compression amount is adjusted, so that the purpose of stably clamping the elastically pre-tightened gear shaft can be achieved, and the processing efficiency and precision are ensured; carry out diversified flexible centre gripping fixedly to the gear shaft outer wall tip outside under a plurality of roll-like flexible sheet mating reactions, can effectively strengthen the fixed effect of centre gripping to the gear shaft, can carry out the centre gripping simultaneously to not unidimensional gear shaft and fix, need not to change clamping part, convenient operation is swift, and avoids the material extravagant.
Description
Technical Field
The invention relates to the technical field of speed reducer processing equipment, in particular to an elastic pre-tightening clamp for an end face of a gear shaft of a speed reducer.
Background
The reducer is an independent part consisting of gear transmission, worm transmission and gear-worm transmission enclosed in a rigid shell, and is commonly used as a speed reduction transmission device between a prime mover and a working machine. The speed reducer is generally used for low-speed and large-torque transmission equipment, and the purpose of reducing speed is achieved by meshing a motor, an internal combustion engine or other high-speed running power with a large gear on an output shaft through a gear with a small number of teeth on an input shaft of the speed reducer. The gear shaft is the main component of speed reducer, guarantees the security and the stability of speed reducer motion. At present, for a hard tooth surface gear shaft after carburization and quenching, the clamping during the tooth surface processing on a worm gear grinding machine is generally carried out by adopting an excircle wrapping type or a center hole type pre-tightening method by jacking a tip, so as to ensure the tooth surface precision.
The tooth surface precision of the gear shaft with the hard tooth surface has very high requirements, the clamping is carried out in an excircle tightening mode, the limitation of equipment stroke and workpiece structure is met, the grinding wheel is easy to interfere, and a large number of tightening sleeves with corresponding specifications are matched according to the size of the excircle specification, so that waste is caused; the gear grinding wheel tooth socket is limited by the size of a contact surface of the center hole, the surface roughness of a taper contact surface of the center hole and the pressure of the center of a machine tool by the mode that the upper and lower double tips compress the double center holes, the clamping force of a gear shaft is insufficient, the tooth socket of a workpiece and the tooth socket of the grinding wheel are relatively staggered, the tooth mouth of the gear grinding wheel is broken, and the tooth surface precision is over-standard.
Disclosure of Invention
The invention aims to provide an elastic pre-tightening clamp for the end face of a gear shaft of a speed reducer, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the elastic pre-tightening clamp for the end face of the gear shaft of the speed reducer comprises a lower tip of a gear grinding machine, an upper tip of the gear grinding machine and an end face driving gear sleeve, wherein the lower tip of the gear grinding machine is arranged below the upper tip of the gear grinding machine, the end face driving gear sleeve is arranged outside the lower tip of the gear grinding machine and close to one end of the upper tip of the gear grinding machine, a plurality of open groove shapes are formed in the outer wall of the end face driving gear sleeve, the open groove shapes are arranged in a parallel and staggered mode, and a plurality of teeth matched with the gear shaft are arranged at one end, close to the upper tip of the gear grinding machine, of the outer wall of the end face driving gear sleeve.
Furthermore, the end face driving gear sleeve is arranged below the teeth, a first installation cavity is formed in the inner side of the first installation cavity, a support bar in sliding connection is arranged on the inner side of the first installation cavity in a matching mode, a plurality of springs are arranged at the bottom of the support bar, the bottom of each spring is fixedly connected with the inner wall of the first installation cavity, a second installation cavity is arranged in the support bar and outside the first installation cavity, a flexible sheet in movable connection is arranged in the second installation cavity, a first rack is vertically arranged on the outer wall of the support bar, a gear meshed with the first rack is rotatably arranged at the top of the inner wall of the end face driving gear sleeve, a second rack meshed with the gear is vertically arranged on the outer wall of the flexible sheet, the first installation cavity and the second installation cavity extend to the upper portion of the teeth, an arc-shaped plate is arranged above the second installation cavity at the top of the teeth, and an arc-shaped groove is arranged between the first installation cavity and the second installation cavity at the top of the teeth, one side, far away from the second rack, of the outer wall of the flexible sheet is provided with a plurality of semi-flexible balls, and the outer wall of each semi-flexible ball is provided with a groove.
Furthermore, the end face driving gear sleeve is internally provided with a third installation cavity matched with the gear, the first installation cavity is communicated with the second installation cavity through the third installation cavity, and the first rack, the second rack and the gear are guaranteed to normally move.
Furthermore, the tooth top be equipped with the first opening of support bar assorted, the tooth top be equipped with flexible piece assorted second opening guarantees the normal extension and the shrink of support bar and flexible piece.
Furthermore, a first pull ring is arranged at the center of the bottom of the support bar, a second pull ring is arranged at the bottom of the flexible sheet, and the first pull ring and the second pull ring are connected through a steel cable, so that the downward movement stability of the flexible sheet can be effectively improved; ensuring the smoothness and stability of the angle movement when the position of the steel cable is changed.
Furthermore, a through groove is formed in the inner wall of the end face driving gear sleeve between the first installation cavity and the second installation cavity, pulleys are arranged at two ends of the inner wall of the through groove, and the steel cable is connected with the pulleys in a sliding mode; ensuring the smoothness and stability of the angle movement when the position of the steel cable is changed.
Further, semi-flexible ball evenly distributed is adjacent six in flexible piece outer wall semi-flexible ball is regular hexagon and distributes, the centre of a circle coincidence of arc and arc recess for semi-flexible ball is better with the stability of gear shaft contact, guarantees the stability and the security of roll-like flexible piece.
Further, flexible piece outer wall is located in the slope of semi-flexible ball, second rack one side is kept away from to semi-flexible ball opening orientation, semi-flexible ball's inclination is greater than thirty degrees, just semi-flexible ball's inclination is less than sixty degrees, can effectively strengthen the fixed effect of centre gripping to the gear shaft, avoids the gear shaft pine to take off.
Furthermore, a base is arranged on the outer wall of the lower center of the gear grinding machine and fixedly connected with the outer wall of the lower center of the gear grinding machine through a first flat end face set screw.
Furthermore, the end face driving gear sleeve is fixedly connected with the base through a second flat end face set screw, and a threaded copper pad is arranged between the second flat end face set screw and the base.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention sets the end face driving gear sleeve, the opening groove shape and the teeth, reserves the gap between the teeth at the end part of the end face driving gear sleeve and the end face of the gear shaft, then carries out axial positioning by double tips and installs the teeth into the gear shaft, the teeth at the end face driving gear sleeve completely fit the end face of the gear shaft, and fixes the axial position of the end face driving gear sleeve; by adopting the technical scheme, the axial distance of the end face driving gear sleeve is adjusted, the teeth on the end face driving gear sleeve end face are completely attached to the gear shaft end face under the elastic supporting action of the open groove, and the contact friction force between the teeth on the end face driving gear sleeve end face and the gear shaft end face can be increased under the condition of not influencing the positioning precision of the double tips; the end face drives the gear sleeve to move axially, the open groove-shaped compression amount is adjusted, the larger the open groove-shaped compression amount is, the larger the contact friction force between the teeth on the end face of the end face drive gear sleeve and the end face of the gear shaft is, and otherwise, the smaller the contact friction force is; the threaded copper pad is adopted for buffering, and the base and the end face driving gear sleeve are effectively fixed, so that the purpose of stably clamping the elastic pre-tightening gear shaft is achieved, and the processing efficiency and precision are guaranteed.
2. The invention is provided with a supporting bar, a flexible sheet, a first rack, a gear, a second rack, an arc groove, an arc plate and a semi-flexible ball, wherein the supporting bar is pressed downwards by a gear shaft, the supporting bar shrinks towards the inside of a first mounting cavity, the gear rotates clockwise in the downward movement process of the first rack, the second rack is meshed with the gear, the second rack moves upwards to drive the flexible sheet to move upwards along the second mounting cavity, the flexible sheet moves upwards and extends out from the upper part of teeth, the top end of the extending flexible sheet is propped against the inner wall of the arc plate, as the flexible sheet continues to move upwards, the flexible sheet bends and deforms along the inner wall of the arc plate and enters the arc groove to bend and roll, the outer wall of the rolled flexible sheet is propped against the top part of the teeth and the outer wall of the gear shaft, and the outer side of the end part of the outer wall of the gear shaft is flexibly clamped and fixed in multiple directions under the matching action of the gear shaft of the flexible sheets, the clamping and fixing effects on the gear shaft can be effectively enhanced, and the rolled flexible sheet is small in size and mainly concentrated on the end part of the gear shaft, so that the influence of a clamping component outside the gear shaft on the normal processing of the grinding wheel can be effectively avoided; in addition, the roll-shaped flexible sheet is extruded, deformed, bent and wound under the combined action of the arc-shaped groove and the outer wall of the gear shaft, the roll-shaped outer diameter can be tightened or loosened along with the size of the outer circle of the gear shaft, gear shafts with different sizes can be clamped and fixed at the same time, clamping parts do not need to be replaced, the operation is convenient and fast, and material waste is avoided; the semi-flexible ball is located the outside of roll-shaped flexible sheet, and semi-flexible ball and gear shaft outer wall contact extrusion form the multipoint mode contact extrusion centre gripping between roll-shaped flexible sheet and gear shaft fixed, can effectively strengthen the contact connection effect of flexible sheet and gear shaft, further strengthen the fixed effect of centre gripping to the gear shaft, and the recess of semi-flexible ball outer wall extrusion deformation becomes the adsorption affinity when with gear shaft surface contact, can further strengthen the fixed effect of centre gripping to the gear shaft.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a side cross-sectional view of the end face drive sleeve of the present invention;
FIG. 3 is an enlarged schematic view at A of FIG. 2 of the present invention;
FIG. 4 is an enlarged schematic view of the invention at B of FIG. 2;
FIG. 5 is an enlarged schematic view of the invention at C of FIG. 2;
FIG. 6 is a top plan view of the end face drive sleeve of the present invention;
FIG. 7 is a schematic view of the distribution of semi-compliant balls according to the present invention;
in the figure: 1. grinding the lower center of the gear machine; 2. grinding the top of the gear machine; 3. the end face drives the gear sleeve; 4. an opening groove shape; 5. a gear shaft; 6. a tooth; 7. a base; 8. a first flat end face set screw; 9. a second flat end face set screw; 10. a threaded copper pad; 11. a first mounting cavity; 12. a supporting strip; 13. a spring; 14. a second mounting cavity; 15. a flexible sheet; 16. a first rack; 17. a gear; 18. a second rack; 19. an arc-shaped groove; 20. a semi-flexible ball; 21. a groove; 22. a third mounting cavity; 23. a first opening; 24. a second opening; 25. a first pull ring; 26. a second tab; 27. a steel cord; 28. a through groove; 29. a pulley; 30. an arc-shaped plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The elastic pre-tightening clamp for the end face of the gear shaft of the speed reducer comprises a gear grinding machine lower tip 1, a gear grinding machine upper tip 2 and an end face driving gear sleeve 3, wherein the gear grinding machine lower tip 1 is arranged below the gear grinding machine upper tip 2, the end face driving gear sleeve 3 is sleeved outside the gear grinding machine lower tip 1 and is close to one end of the gear grinding machine upper tip 2, the outer wall of the end face driving gear sleeve 3 is provided with a plurality of open groove shapes 4, the open groove shapes 4 are arranged in a parallel and staggered mode, and one end, close to the gear grinding machine upper tip 2, of the outer wall of the end face driving gear sleeve 3 is provided with a plurality of teeth 6 matched with the gear shaft 5; the outer wall of the lower center 1 of the gear grinding machine is provided with a base 7, and the base 7 is fixedly connected with the outer wall of the lower center 1 of the gear grinding machine through a first flat end face set screw 8; the end face driving gear sleeve 3 is fixedly connected with the base 7 through a second flat end face set screw 9, and a threaded copper pad 10 is arranged between the second flat end face set screw 9 and the base 7.
The implementation mode is specifically as follows: when in use, the end face driving tooth sleeve 3, the opening groove shape 4 and the teeth 6 are arranged, in the use process, sleeving the base 7 into the lower tip 1 of the gear grinding machine, screwing the first flat end face set screws 8 at the three positions to enable the first flat end face set screws 8 to be in contact with the outer circle of the lower tip 1 of the gear grinding machine, fixing the axial position of the base 7, then the end face driving gear sleeve 3 is sleeved into the lower tip 1 of the gear grinding machine in a rotating way and is connected with the base 7 through threads, a gap between the teeth 6 at the end part of the end face driving gear sleeve 3 and the end face of the gear shaft 5 is reserved, then the gear shaft 5 is installed by axially positioning the double tips, the end face driving gear sleeve 3 is rotated to enable the end face driving gear sleeve 3 to axially move upwards, at the moment, the teeth 6 on the end face of the end face driving gear sleeve 3 are completely attached to the end face of the gear shaft 5, then two second flat end face set screws 9 are screwed down to fix the axial position of the end face driving gear sleeve 3; by adopting the technical scheme, the axial distance of the end face driving toothed sleeve 3 is adjusted, the teeth 6 on the end face of the end face driving toothed sleeve 3 are completely attached to the end face of the gear shaft 5 under the elastic supporting action of the open groove 4, and the contact friction force between the teeth on the end face of the end face driving toothed sleeve 3 and the end face of the gear shaft 5 can be increased under the condition of not influencing the positioning precision of double tips; the end surface drives the gear sleeve 3 to move axially, the compression amount of the open groove 4 is adjusted, the larger the compression amount of the open groove 4 is, the larger the contact friction force between the teeth 6 on the end surface of the end surface driving gear sleeve 3 and the end surface of the gear shaft 5 is, and the smaller the contact friction force is otherwise; a threaded copper pad 10 is adopted for buffering between the base 7 and the second flat end face fastening screw 9, and the base 7 and the end face driving gear sleeve 3 are effectively fixed, so that the purpose of stably clamping the elastic pre-fastening gear shaft 5 is achieved, and the processing efficiency and the processing precision are guaranteed.
As shown in the accompanying drawings 1-7, the reducer gear shaft end face elastic pre-tightening clamp includes a first mounting cavity 11 below a tooth 6, a support bar 12 slidably connected to the inside of the first mounting cavity 11, a plurality of springs 13 disposed at the bottom of the support bar 12, a second mounting cavity 14 disposed inside the support bar 12 and outside the first mounting cavity 11, a flexible sheet 15 movably connected to the second mounting cavity 14, a first rack 16 vertically disposed on the outer wall of the support bar 12, a gear 17 engaged with the first rack 16 rotatably disposed at the top of the inner wall of the end face drive gear sleeve 3, a second rack 18 vertically disposed on the outer wall of the flexible sheet 15 and engaged with the gear 17, and the first mounting cavity 11 and the second mounting cavity 14 extending above the tooth 6, the top of the tooth 6 is provided with an arc-shaped plate 30 above the second mounting cavity 14, an arc-shaped groove 19 is formed in the top of the tooth 6 between the first mounting cavity 11 and the second mounting cavity 14, a plurality of semi-flexible balls 20 are arranged on one side, away from the second rack 18, of the outer wall of the flexible sheet 15, and a groove 21 is formed in the outer wall of each semi-flexible ball 20.
The end face driving gear sleeve 3 is internally provided with a third mounting cavity 22 matched with the gear 17, the first mounting cavity 11 is communicated with the second mounting cavity 14 through the third mounting cavity 22, the third mounting cavity 22 provides mounting and moving space for the gear 17, and the first rack 16, the second rack 18 and the gear 17 are guaranteed to normally move.
6 tops of tooth are equipped with the first opening 23 with support bar 12 assorted, 6 tops of tooth be equipped with flexible piece 15 assorted second opening 24, first opening 23 provides for support bar 12 and stretches out and the shrink space, guarantees that support bar 12 normally stretches out and the shrink from first installation cavity 11 is inside, and second opening 24 provides for flexible piece 15 and stretches out and the shrink space, guarantees that flexible piece 15 normally stretches out and the shrink from second installation cavity 14 is inside.
A first pull ring 25 is arranged at the center of the bottom of the support bar 12, a second pull ring 26 is arranged at the bottom of the flexible sheet 15, and the first pull ring 25 and the second pull ring 26 are connected through a steel cable 27; a through groove 28 is formed in the inner wall of the end face driving gear sleeve 3 between the first mounting cavity 11 and the second mounting cavity 14, pulleys 29 are arranged at two ends of the inner wall of the through groove 28, the steel cable 27 is connected with the pulleys 29 in a sliding manner, the support bar 12 is connected with the flexible sheet 15 through the first pull ring 25, the second pull ring 26 and the steel cable 27, the flexible sheet 15 moves upwards in the downward movement process of the support bar 12, the first pull ring 25 moves downwards along with the support bar 12, the second pull ring 26 moves upwards along with the flexible sheet 15, the steel cable 27 is tensioned, the support bar 12 moves upwards and the flexible sheet 15 moves downwards in the rebound process of the spring 13, meanwhile, the second pull ring 26 is pulled downwards through the steel cable 27 by the first pull ring 25, and the stability that the flexible sheet 15 is driven by the second pull ring 26 to move downwards is further ensured; the pulleys 29 roll and support the steel cable 27 at both ends of the through groove 28, and ensure smoothness and stability of angular movement when the position of the steel cable 27 is changed.
The semi-flexible ball 20 is obliquely arranged on the outer wall of the flexible sheet 15, the opening of the semi-flexible ball 20 faces to the side far away from the second rack 18, the inclination angle of the semi-flexible ball 20 is larger than thirty degrees, and the inclination angle of the semi-flexible ball 20 is smaller than sixty degrees, so that when the flexible sheet 15 is propped against the arc-shaped plate 30 to be bent and deformed, the arc surface of the semi-flexible ball 20 is contacted with the arc-shaped plate 30, the flexible sheet 15 can rapidly enter the inner side of the arc-shaped groove 19 after being bent and deformed, the contact between the semi-flexible ball 20 and the arc-shaped plate 30 is prevented from hindering the normal movement of the flexible sheet 15, meanwhile, the semi-flexible ball 20 on the outer wall of the rolled flexible sheet 15 is tightly attached to the gear shaft 5, meanwhile, when the position of the flexible sheet 15 is not displaced, the groove 21 surface of the outer wall of the semi-flexible ball 20 set by the angle is tightly attached to the gear shaft 5, and the semi-flexible ball 20 attached to the gear shaft 5 is obliquely and upwards distributed, thereby further enhancing the clamping and fixing effect on the gear shaft 5, the gear shaft 5 is prevented from being loosened.
The implementation mode specifically comprises the following steps: when the flexible piece 15 is used, by arranging the supporting strip 12, the flexible piece 15, the first rack 16, the gear 17, the second rack 18, the arc-shaped groove 19, the arc-shaped plate 30 and the semi-flexible ball 20, when the gear shaft 5 is in contact with the end face driving gear sleeve 3, the gear shaft 5 presses the supporting strip 12 downwards, the supporting strip 12 shrinks towards the inside of the first mounting cavity 11, the spring 13 compresses, the first rack 16 moves downwards along with the supporting strip 12, the first rack 16 is meshed with the gear 17, the gear 17 rotates clockwise in the downward movement process of the first rack 16, the second rack 18 is meshed with the gear 17, the second rack 18 moves upwards in the clockwise rotation process of the gear 17, the flexible piece 15 is driven to move upwards along the second mounting cavity 14, the flexible piece 15 passes through the teeth 6 in the upward movement process of the flexible piece 15, the flexible piece 15 extends out from the upper side of the teeth 6, and the top end of the extended flexible piece 15 is abutted to the inner wall of the arc-shaped plate 30, with the continuous upward movement of the flexible sheet 15, the flexible sheet 15 is subjected to bending deformation along the inner wall of the arc-shaped plate 30, the flexible sheet 15 enters the arc-shaped groove 19 after being bent into an arc shape, the outer wall of the flexible sheet 15 abuts against the outer wall of the gear shaft 5, the end part of the flexible sheet 15 enters the arc-shaped groove 19 and is bent at the inner side of the arc-shaped groove 19 into a roll shape, the outer wall of the roll-shaped flexible sheet 15 abuts against the outer wall of the gear shaft 5 at the top of the tooth 6, and the outer side of the outer wall end part of the gear shaft 5 is subjected to multi-azimuth flexible clamping and fixing under the cooperation of the flexible sheets 15, so that the clamping and fixing effect on the gear shaft 5 can be effectively enhanced, and the roll-shaped flexible sheet 15 is small in size and mainly concentrated at the end part of the gear shaft 5, so that the influence of the external clamping part of the gear shaft 5 on the normal processing of the grinding wheel can be effectively avoided; in addition, as the rolled flexible sheet 15 is extruded, deformed, bent and rolled under the combined action of the arc-shaped groove 19 and the outer wall of the gear shaft 5, the outer diameter of the roll can be tightened or loosened along with the size of the outer circle of the gear shaft 5, the gear shafts 5 with different sizes can be clamped and fixed at the same time, the clamping part does not need to be replaced, the operation is convenient and fast, and the material waste is avoided; after the flexible sheet 15 is curled, the semi-flexible ball 20 is positioned outside the rolled flexible sheet 15, the semi-flexible ball 20 is in contact extrusion with the outer wall of the gear shaft 5, multi-point contact extrusion clamping fixation is formed between the rolled flexible sheet 15 and the gear shaft 5, the contact connection effect of the flexible sheet 15 and the gear shaft 5 can be effectively enhanced, the clamping fixation effect on the gear shaft 5 is further enhanced, the groove 21 on the outer wall of the semi-flexible ball 20 is extruded and deformed into adsorption force when being in contact with the surface of the gear shaft 5, and the clamping fixation effect on the gear shaft 5 can be further enhanced; after the gear shaft 5 is machined, the distance between the lower tip 1 of the gear grinding machine and the upper tip 2 of the gear grinding machine is increased, clamping of two tips of the gear shaft 5 is released, the supporting bar 12 is pushed outwards by rebounding of the spring 13, the supporting bar 12 moves outwards along the first mounting cavity 11, the first rack 16 moves upwards opposite to the supporting bar 12, the first rack 16 drives the gear 17 to rotate anticlockwise, the gear 17 rotates anticlockwise to drive the second rack 18 to move downwards, the flexible sheet 15 shrinks into the second mounting cavity 14 along with the downward movement of the second rack 18, the flexible sheet 15 rolled outside the gear shaft 5 expands along with shrinking gradually into the second mounting cavity 14, and finally the flexible sheet 15 shrinks completely into the second mounting cavity 14 and releases clamping locking of the outer circle of the gear shaft 5.
The working principle of the invention is as follows:
referring to the attached drawing 1 of the specification, by arranging the end face driving toothed sleeve 3, the open groove 4 and the teeth 6, and by adopting the technical scheme, the axial distance of the end face driving toothed sleeve 3 is adjusted, the teeth 6 on the end face of the end face driving toothed sleeve 3 are completely attached to the end face of the gear shaft 5 under the elastic supporting action of the open groove 4, and the contact friction force between the teeth on the end face of the end face driving toothed sleeve 3 and the end face of the gear shaft 5 can be increased under the condition of not influencing the positioning precision of double tips; the end face drives the gear sleeve 3 to axially move, the compression amount of the open groove 4 is adjusted, the larger the compression amount of the open groove 4 is, the larger the contact friction force between the teeth 6 on the end face of the end face driving gear sleeve 3 and the end face of the gear shaft 5 is, otherwise, the smaller the compression amount of the open groove 4 is, the purpose of stably clamping the elastically pre-tightened gear shaft 5 can be achieved, and the processing efficiency and the precision are ensured;
referring to the attached drawings 1-7 of the specification, by arranging the supporting strip 12, the flexible sheet 15, the first rack 16, the gear 17, the second rack 18, the arc-shaped groove 19, the arc-shaped plate 30 and the semi-flexible ball 20, the supporting strip 12 is pressed downwards by the gear shaft 5, the flexible sheet 15 moves upwards and bends to be in a roll shape, the outer wall of the roll-shaped flexible sheet 15 is abutted against the top of the tooth 6 and the outer wall of the gear shaft 5, and the outer side of the outer wall end part of the gear shaft 5 is flexibly clamped and fixed in multiple directions under the cooperation effect of the roll-shaped flexible sheets 15, so that the clamping and fixing effect on the gear shaft 5 can be effectively enhanced, and the roll-shaped flexible sheets 15 are small in size and mainly concentrated on the end part of the gear shaft 5, so that the influence of the external clamping part of the gear shaft 5 on the normal processing of the grinding wheel can be effectively avoided; the roll-shaped outer diameter of the flexible sheet 15 can be tightened or loosened along with the size of the outer circle of the gear shaft 5, the gear shafts 5 of different sizes can be clamped and fixed at the same time, the clamping parts do not need to be replaced, the operation is convenient and fast, and the material waste is avoided.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a speed reducer gear shaft terminal surface elasticity pretension anchor clamps, top (2) and terminal surface drive tooth cover (3) on grinding gear machine top (1), grinding gear machine under including grinding gear machine, its characterized in that: the lower tip (1) of the gear grinding machine is arranged below the upper tip (2) of the gear grinding machine, the end face driving gear sleeve (3) is sleeved at one end, close to the upper tip (2) of the gear grinding machine, of the outer portion of the lower tip (1) of the gear grinding machine, a plurality of open groove shapes (4) are arranged on the outer wall of the end face driving gear sleeve (3), the open groove shapes (4) are arranged in a parallel and staggered mode, and a plurality of teeth (6) matched with the gear shaft (5) are arranged at one end, close to the upper tip (2) of the gear grinding machine, of the outer wall of the end face driving gear sleeve (3).
2. The elastic pre-tightening clamp for the end face of the gear shaft of the speed reducer as claimed in claim 1, is characterized in that: the end face driving tooth sleeve (3) is provided with a first mounting cavity (11) below the teeth (6), the inner side of the first mounting cavity (11) is matched with a support bar (12) connected in a sliding manner, the bottom of the support bar (12) is provided with a plurality of springs (13), the bottom of each spring (13) is fixedly connected with the inner wall of the first mounting cavity (11), the inner part of each support bar (12) is provided with a second mounting cavity (14) outside the first mounting cavity (11), the inner part of each second mounting cavity (14) is provided with a flexible sheet (15) connected in a movable manner, the outer wall of each support bar (12) is vertically provided with a first rack (16), the top of the inner wall of the end face driving tooth sleeve (3) is rotatably provided with a gear (17) meshed with the first rack (16), the outer wall of each flexible sheet (15) is vertically provided with a second rack (18) meshed with the gear (17), and the first mounting cavity (11) and the second mounting cavity (14) extend to the upper parts of the teeth (6), tooth (6) top is equipped with arc (30) above second installation cavity (14), tooth (6) top is equipped with arc recess (19) between first installation cavity (11) and second installation cavity (14), second rack (18) one side is kept away from to flexible piece (15) outer wall is equipped with a plurality of semi-flexible ball (20), recess (21) have been seted up to semi-flexible ball (20) outer wall.
3. The elastic pre-tightening clamp for the end face of the gear shaft of the speed reducer as claimed in claim 2, is characterized in that: the end face driving gear sleeve (3) is internally provided with a third installation cavity (22) matched with the gear (17), and the first installation cavity (11) is communicated with the second installation cavity (14) through the third installation cavity (22).
4. The elastic pre-tightening clamp for the end face of the gear shaft of the speed reducer as claimed in claim 2, is characterized in that: tooth (6) top be equipped with support bar (12) assorted first opening (23), tooth (6) top be equipped with flexible piece (15) assorted second opening (24).
5. The elastic pre-tightening clamp for the end face of the gear shaft of the speed reducer as claimed in claim 2, is characterized in that: the support bar (12) bottom center is equipped with first pull ring (25), flexible piece (15) bottom is equipped with second pull ring (26), connect through cable wire (27) between first pull ring (25) and the second pull ring (26).
6. The elastic pre-tightening clamp for the end face of the gear shaft of the speed reducer as claimed in claim 5, is characterized in that: the end face driving gear sleeve (3) is provided with a through groove (28) between the first installation cavity (11) and the second installation cavity (14), pulleys (29) are arranged at two ends of the inner wall of the through groove (28), and the steel cable (27) is connected with the pulleys (29) in a sliding mode.
7. The elastic pre-tightening clamp for the end face of the gear shaft of the speed reducer as claimed in claim 2, is characterized in that: semi-flexible ball (20) evenly distributed is in flexible piece (15) outer wall, adjacent six semi-flexible ball (20) are regular hexagon and distribute, the centre of a circle coincidence of arc plate (30) and arc recess (19).
8. The elastic pre-tightening clamp for the end face of the gear shaft of the speed reducer as claimed in claim 2, is characterized in that: flexible piece (15) outer wall is located in semi-flexible ball (20) slope, semi-flexible ball (20) opening orientation is kept away from second rack (18) one side, the inclination of semi-flexible ball (20) is greater than thirty degrees, just the inclination of semi-flexible ball (20) is less than sixty degrees.
9. The elastic pre-tightening clamp for the end face of the gear shaft of the speed reducer as claimed in claim 1, is characterized in that: the outer wall of the lower center (1) of the gear grinding machine is provided with a base (7), and the base (7) is fixedly connected with the outer wall of the lower center (1) of the gear grinding machine through a first flat end face set screw (8).
10. The elastic pre-tightening clamp for the end face of the gear shaft of the speed reducer as claimed in claim 1, is characterized in that: the end face driving gear sleeve (3) is fixedly connected with the base (7) through a second flat end face set screw (9), and a threaded copper pad (10) is arranged between the second flat end face set screw (9) and the base (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210159708.6A CN114473080B (en) | 2022-02-22 | 2022-02-22 | Elastic pre-tightening clamp for gear shaft end face of speed reducer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210159708.6A CN114473080B (en) | 2022-02-22 | 2022-02-22 | Elastic pre-tightening clamp for gear shaft end face of speed reducer |
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| CN114473080A true CN114473080A (en) | 2022-05-13 |
| CN114473080B CN114473080B (en) | 2023-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210159708.6A Active CN114473080B (en) | 2022-02-22 | 2022-02-22 | Elastic pre-tightening clamp for gear shaft end face of speed reducer |
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Cited By (1)
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| CN115570158A (en) * | 2022-09-27 | 2023-01-06 | 中国兵器装备集团自动化研究所有限公司 | Tip structure capable of quickly replacing end teeth and machine tool |
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| Publication number | Publication date |
|---|---|
| CN114473080B (en) | 2023-05-26 |
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Effective date of registration: 20240603 Address after: No. 10 Xiangcun Industrial Zone, Dongyuan Town, Qingtian County, Wenzhou City, Zhejiang Province, 323908 Patentee after: Zhejiang Wuma Transmission Co.,Ltd. Country or region after: China Address before: No.10 chuangqiang Road, Wenzhou, Zhejiang 325000 Patentee before: ZHEJIANG WUMA REDUCER Co.,Ltd. Country or region before: China |
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