TWI461610B - Precision locknut with complex locking function - Google Patents

Description

Composite lock precision nut

The invention relates to a composite lock precision nut, in particular to a technology which is screwed on a shaft and can stably and securely lock the object on the shaft to improve the locking performance and multiple selections and is easy to operate.

According to the conventional shaft, the locking nut is used for screwing on the shaft and then further locking and tightening. At present, it is more common to install the object on the positioning machine spindle or the ball screw. In order to fix the locking nut and the shaft, the first conventional conventional technique is to provide a screw hole in the locking nut, and the screw hole fills the pressing block, and the bolt is screwed into the screw hole to push the pressing block. The locking nut is forced against the shaft. The second type is to provide a cross-shaped annular groove on the inner wall of the nut, and an axial screw hole is extended to the annular groove, and the bolt is screwed in the screw hole to deform the inner wall of the nut to force the nut to be tightened on the shaft on.

Due to the above-mentioned prior art, there are still many shortcomings in practical operation, and the applicant has long invested in research and development to improve. For example, the Patent Locking Nut Patent Case No. 268543 of the Republic of China has the effect of improving the above-mentioned second conventional technology. However, the technology of this patent is mainly to design the ring groove, which has different effects and effects from the technique of pushing the pressing block by bolts. For example, the patent of the spindle balancing nut of the Republic of China Patent No. I262262, which is owned by the applicant, is a balancing technique for improving the above two conventional techniques, and the current balancing technique of the shaft locking nut is to directly dig the hole. The method of balancing the material to be removed, resulting in inconvenience in operation and wasted work hours. However, the technique of this patent is mainly to add a weight on the nut to balance, and the technique still has noise problems and balance in the embodiment. For example, the patent application case of the high-speed spindle of the Republic of China Patent No. M273418 and its nut is in the improvement of the above two conventional technologies, and the balancing technique of the conventional shaft locking nut is currently known. In order to directly dig holes and balance the material, it is inconvenient to operate and wasteful man-hours, and in the current balance technology, the nut has a cavity and a lack of noise and instability. However, the technology of this patent case still has noise problems and a lack of balance in implementation. For example, the applicant's patent of the Republic of China Patent No. M379665 nut lock structure is to improve the lack of tightness of the first conventional technology, and the lack of instability of the nut lock, and Applicant's patents such as No. I262262 and No. M273418 have not been perfected.

The applicant has long been engaged in the development of shaft lock nuts and has accumulated considerable experience. In order to make up for the above-mentioned patent products owned by the applicant, there are still some shortcomings. The applicant adheres to the business philosophy of R&D innovation and excellence, and continues to actively invest in research and development. The output has been applied for the Republic of China on the 99130583, 99135923, and 99181800. And the patent of 99214417. During this period, in view of the products previously developed by the applicant and the patent applications that have been filed, there are still unsatisfactory designs in the design, and then actively invest in research and development, through continuous research, design and implementation and experimentation, and finally There are research and development results of the present invention. In order to ensure the applicant's research and development efforts and legal rights and interests are guaranteed, the company has filed a patent application in accordance with the law.

SUMMARY OF THE INVENTION A first object of the present invention is to provide a precision lock nut that can stably and securely lock an assembly on a shaft and has a double selection operation to enhance ease of use. The technical means for achieving the object includes a body, a sleeve hole extending through the body, at least one first through hole, a first dividing groove and at least one second through hole. The first groove is transverse to the inner wall of the sleeve hole; the first hole is parallel to the axial direction of the body and communicates with the first groove; the axial direction of the second hole has an angle with the axial direction of the body, and the two ends are respectively opened to the body The outer peripheral surface and the inside of the sleeve. The user can select the first perforated locking bolt to generate a reverse force on the two pairs of walls of the first dividing groove, so that the inner wall of the sleeve hole is partially deformed, and the body is locked on the shaft; or Two perforated screw bolts are used to push the inner pressing block against the shaft to effectively fix the body on the shaft.

A second object of the present invention is to provide a precision lock nut that can stably and securely lock an assembly on a shaft and has a triple selection operation to enhance ease of use. The technical means for achieving the object includes a body, a sleeve hole extending through the body, at least one first through hole, a first dividing groove, at least one second through hole and at least one third through hole. The first groove is transverse to the inner wall of the sleeve hole; the first hole is parallel to the axial direction of the body and communicates with the first groove; the axial direction of the second hole has an angle with the axial direction of the third hole and the axial direction of the body The two ends of the second through hole and the third through hole are respectively opened to the outer peripheral surface of the body and the inside of the sleeve hole. The user can select the first perforated locking bolt to generate a reverse force on the two pairs of walls of the first dividing groove, so that the inner wall of the sleeve hole is partially deformed, and the body is locked on the shaft; or A second perforated or third perforated screw bolt is used to push the inner pressing block against the shaft to effectively fix the body to the shaft.

A third object of the present invention is to provide a precision lock nut that can stably and securely lock components on a shaft to improve ease of use, improve shaft rotation stability, and reduce noise. The technical means for achieving the object includes a body, a sleeve hole extending through the body, at least one first through hole, a first dividing groove and at least one second through hole. The first groove is transverse to the inner wall of the sleeve hole; the first hole is parallel to the axial direction of the body and communicates with the first groove; the axial direction of the second hole has an angle with the axial direction of the body, and the two ends are respectively opened to the body The outer peripheral surface and the inside of the sleeve. Not only allows the user to select the first perforated locking bolt to partially deform the inner wall of the sleeve hole, but to lock the body to the shaft; or to select the second perforated screw bolt to push the pressing block therein The shaft is pressed against the shaft to effectively fix the body to the shaft. Moreover, a plurality of screw holes are arranged on the outer surface of the body, and the screw holes are screwed into the weights to rotate the shaft stably, and the screw holes are screwed into the sound-damping blocks to compensate for the holes and reduce noise.

I. First Specific Embodiment of the Invention

Please refer to the first to third figures to achieve a specific embodiment of the first and third objects of the present invention. The design comprises a body 10 having a cylindrical appearance, a set of holes 11, three first perforations 14, and a The first groove 19, the third second hole 14b, the six screw holes 15, the at least one weight 16 and the six sound block 18. The sleeve hole 11 penetrates the body 10 along the axial direction of the body 10, and has a circular cross section. The inner wall has a threaded section 12, and the threaded section 12 cooperates with a screw thread of a shaft 40. The first dividing groove 19 is transverse to the inner wall of the sleeve hole 11 , and at least a portion of the dividing groove 19 communicates with the sleeve hole 11 , and the first through hole 14 communicates with the first dividing groove 19 along the axial direction of the body 10 . The first through hole 14 is disposed on the body 10 and has a first end and a second end opposite to each other, and extends parallel to the axial direction of the body 10 to communicate with the first dividing groove 19, and the first end opening 143 is located on the body. The second end face 102 of 10. The inner wall of the first through hole 14 is provided with a threaded portion 144 to screw a bolt 20, and the bolt 20 generates a reverse force on the two pairs of walls of the first dividing groove 19, so that the inner wall of the sleeve hole 11 is partially deformed. The body 10 is locked to the shaft 40. The second through hole 14b is disposed on the body 10, and has an axial direction at an angle A with the axial direction of the body 10. In the example of the third figure, the angle A is ninety degrees; the second through hole 14b includes two connected seconds. The straight extending sections 140b/141b and the second second straight extending sections 140b/141b are respectively opened to the outer peripheral surface of the body 10 and the inside of the sleeve hole 11. Wherein, a second straight extending portion 140b opened to the outer peripheral surface of the body 10 has an internal thread for a bolt 21 to be screwed into the inside thereof; and another second straight extending portion 141b opened to the inside of the sleeve hole 11 for filling a pressing block 30 thereof Inside. The pressing block 30 has an opposite first end portion 31 and a second end portion 32. The first end portion 31 is pushed by the bolt 21, the second end portion 32 has a pressing surface 320, and the pressing surface 320 is located in the sleeve hole. The wall 11 has the same curvature as the sleeve hole 11, and is provided with a threaded section 321 which is screwed with the threaded section 12 of the inner wall of the sleeve hole 11. The six screw holes 15 are distributed along the central axis of the body 10 at an equal central angle. Each of the screw holes 15 is closed at one end and has an opening 150 at the other end. Each of the screw holes 15 has a first one from the inside to the outside. a screw hole segment 151 and a second screw hole segment 152, one end of the second screw hole segment 152 extends to the opening 150; the weight block 16 is screwed into the first screw hole segment 151, and the muffler block 18 is screwed into the second screw hole segment 152.

When the first embodiment is operated, the user first screws the body 10 onto the shaft 40, so that the body 10 effectively presses an object 41 adjacent to the shaft 40. Where the body 10 is to be locked on the shaft 40, a) can be selected: a) rotating the bolt 20 located in the first through hole 14, when the bolt 20 is locked, the inner wall of the sleeve hole 11 is partially deformed, and the body 10 is locked at On the shaft 40; or b) screwing the bolt 21 to the second through hole 14b to push the pressing block 30 therein to abut the shaft 40, so that the body 10 is effectively fixed on the shaft 40. Moreover, if the shaft 40 is a rotating shaft, the user tests whether the body 10 is in equilibrium with respect to the shaft 40. When it is in an unbalanced state, the weight 16 is screwed to the corresponding screw hole 15. When the first screw hole portion 151 of the partial screw hole 15 is screwed into the weighted block 16 with the screw thread, and the shaft 40 is stably rotated, the second screw hole 152 segments of all the screw holes 15 are screwed one by one. The muffler block 18 with a thread can eliminate the high frequency noise generated by the screw hole 15 during the high speed operation, and the maintenance of the screw hole 15 to prevent the screw hole 15 from rusting and affect the balance precision, thereby ensuring the shaft. The life and accuracy of the rod 40. Wherein, when the weight 16 is screwed on the body 10 to complete the weight, the second screw hole 152 of each screw hole 15 is screwed into a sound-absorbing block 18, because all the sound-insulating blocks 18 screwed in are arranged at an equal central angle. Therefore, it will not affect the steady state of the weight of the body 10.

i. The first specific implementation of deforming the sleeve hole

Referring to the third figure, the first through hole 14 penetrates into the first groove 19, and is locked by the bolt 20 in the first through hole 14. The end thereof pushes the wall of the first groove 19 so that the first groove 19 The two pairs of walls are subjected to a reverse force, and the two pairs of walls are slightly separated from each other, so that the inner wall of the sleeve hole 11 is locally deformed, and the body 10 is locked on the shaft 40.

Ii. The second embodiment of deforming the sleeve hole

Referring to the ninth figure, the first through hole 14 penetrates the first dividing groove 19. The outer end of the first through hole 14 is enlarged to form an opening 143, and the other end of the first through groove 19 is provided with a threaded section 144, and the head of the bolt 20 is clamped to the one end opening 143 of the outer diameter of the first through hole 14 and ends. The screw thread is locked to the threaded section 144 of the first through hole 14 to subject the two pairs of walls of the first dividing groove 19 to a reverse force, so that the two pairs of walls are slightly close to each other, so that the inner wall of the sleeve hole 11 is partially deformed, thereby The body 10 is locked to the shaft 40.

Iii. The third embodiment of deforming the sleeve hole

Referring to the tenth figure, the first groove 19 is adjacent to the second end surface 102 of the body 10, and a second groove 190 is disposed on the outer circumferential surface of the body 10 near the first end surface 101. The first hole 14 is provided. The first and second split grooves 19/190 are penetrated. The outer diameter of one end of the first through hole 14 is enlarged to form an opening 143, and the other end of the first and second dividing grooves 19/190 is provided with a screw segment 144, and the head of the bolt 20 is clamped to the outer diameter of the first through hole 14 One end opening 143, the end screwed to the threaded section 144 of the first through hole 14, so that the two pairs of walls of the first and second dividing grooves 19/190 are subjected to a reverse force, so that the two pairs of walls are slightly close to each other, so that The inner wall of the sleeve hole 11 is partially deformed to lock the body 10 on the shaft 40. In the embodiment shown in the tenth embodiment, the first through hole 14 is closed at one end. In the embodiment shown in the eleventh figure, the first through hole 14 has an opening at both ends.

II. Second embodiment of the present invention

Referring to the first, fourth and fifth figures, another specific embodiment for achieving the first and third objects of the present invention comprises a body 10 having a cylindrical appearance, a set of holes 11, and three first perforations 14 . a first dividing groove 19, three third through holes 14c, six screw holes 15, at least one weight 16 and six sound blocking blocks 18. The sleeve hole 11 penetrates the body 10 along the axial direction of the body 10, and has a circular cross section. The inner wall has a threaded section 12, and the threaded section 12 cooperates with a screw thread of a shaft 40. The first dividing groove 19 is transverse to the inner wall of the sleeve hole 11 , and at least a portion of the dividing groove 19 communicates with the sleeve hole 11 , and the first through hole 14 communicates with the first dividing groove 19 along the axial direction of the body 10 . The first through hole 14 is disposed on the body 10 and has a first end and a second end opposite to each other, and extends parallel to the axial direction of the body 10 to communicate with the first dividing groove 19, and the first end opening 143 is located on the body. The second end face 102 of 10. The inner wall of the first through hole 14 is provided with a thread to lock a bolt 20, and a reverse force is applied to the two pairs of walls of the first groove 19 by the bolt 20, so that the inner wall of the hole 11 is partially deformed, and the body is made 10 is locked to the shaft 40. The third through hole 14c is disposed on the body 10, and the axial direction of the third through hole 14c has an angle B with the axial direction of the body 10. The third through hole 14c includes two third straight extending sections 140c/141c connected to each other, and the second straight extending sections 140c/141c are respectively opened to the outer peripheral surface of the body 10 and the inside of the sleeve hole 11. Wherein, a third straight extending portion 140c opened to the outer peripheral surface of the body 10 has an internal thread for a bolt 22 to be screwed into the inside; and another third straight extending portion /141c opened to the inside of the sleeve hole 11 for filling with a pressing block 30 Inside. The pressing block 30 has an opposite first end portion 31 and a second end portion 32. The first end portion 31 is pushed by the bolt 22, the second end portion 32 has a pressing surface 320, and the pressing surface 320 is located in the sleeve hole. The wall 11 has the same curvature as the sleeve hole 11 and is provided with a threaded section 321 which is screwed with the threaded section 12 of the inner wall of the sleeve hole 11. The six screw holes 15 are distributed along the central axis of the body 10 at an equal central angle. Each of the screw holes 15 is closed at one end and has an opening 150 at the other end. Each of the screw holes 15 has a first one from the inside to the outside. a screw hole segment 151 and a second screw hole segment 152, one end of the second screw hole segment 152 extends to the opening 150; the weight block 16 is screwed into the first screw hole segment 151, and the muffler block 18 is screwed into the second screw hole segment 152.

When the second embodiment is operated, the user first screws the body 10 onto the shaft 40, so that the body 10 effectively presses an object 41 adjacent to the shaft 40. Where the body 10 is to be locked on the shaft 40, a) can be selected: a) rotating the bolt 20 located in the first through hole 14, when the bolt 20 is locked, the inner wall of the sleeve hole 11 is partially deformed, and the body 10 is locked at On the shaft 40; or b) screwing the bolt 22 to the third through hole 14c to push the pressing block 30 therein to abut the shaft 40, so that the body 10 is effectively fixed on the shaft 40. Moreover, if the shaft 40 is a rotating shaft, the user tests whether the body 10 is in equilibrium with respect to the shaft 40. When it is in an unbalanced state, the weight 16 is screwed to the corresponding screw hole 15. When the first screw hole portion 151 of the partial screw hole 15 is screwed into the weighted block 16 with the screw thread, and the shaft 40 is stably rotated, the second screw hole 152 segments of all the screw holes 15 are screwed one by one. The muffler block 18 with a thread can eliminate the high frequency noise generated by the screw hole 15 during the high speed operation, and the maintenance of the screw hole 15 to prevent the screw hole 15 from rusting and affect the balance precision, thereby ensuring the shaft. The life and accuracy of the rod 40. Wherein, when the weight 16 is screwed on the body 10 to complete the weight, the second screw hole 152 of each screw hole 15 is screwed into a sound-absorbing block 18, because all the sound-insulating blocks 18 screwed in are arranged at an equal central angle. Therefore, it will not affect the steady state of the weight of the body 10.

III. Third embodiment of the present invention

Referring to the first, fourth and fifth figures, a specific embodiment for achieving the second and third objects of the present invention comprises a body 10 having a cylindrical appearance, a set of holes 11, and three first perforations 14, A first groove 19, three second holes 14b, three third holes 14c, six screw holes 15, at least one weight 16 and six sound blocks 18. The sleeve hole 11 penetrates the body 10 along the axial direction of the body 10, and has a circular cross section. The inner wall has a threaded section 12, and the threaded section 12 cooperates with a screw thread of a shaft 40. The first dividing groove 19 is transverse to the inner wall of the sleeve hole 11 , and at least a portion of the first dividing groove 19 communicates with the sleeve hole 11 , and the first through hole 14 communicates with the first dividing groove 19 along the axial direction of the body 10 . The first through hole 14 is disposed on the body 10 and has a first end and a second end opposite to each other, and extends parallel to the axial direction of the body 10 to communicate with the first dividing groove 19, and the first end opening 143 is located on the body. The second end face 102 of 10. The inner wall of the first through hole 14 is provided with a thread to lock a bolt 20, and a reverse force is applied to the two pairs of walls of the first groove 19 by the bolt 20, so that the inner wall of the hole 11 is partially deformed, and the body is made 10 is locked to the shaft 40. The second through hole 14b is disposed on the body 10. The axial direction of the second through hole 14b extends along the radial direction of the body 10. The axial direction of the second through hole 14b is respectively opposite to the axial direction of the third through hole 14c and the axial direction of the body 10. An angle. The second through hole 14b and the third through hole 14c respectively include two second straight extending sections 140b/141b and two third straight extending sections 140c/141c, two second straight extending sections 140b/141b and two third straight extending sections 140c/ The 141c is opened to the outer peripheral surface of the body 10 and the inside of the sleeve hole 11, respectively. Wherein, a second straight extension 140b and a third straight extension 140c opened to the outer circumferential surface of the body 10 respectively have internal threads for a bolt 21/22 to be screwed into the interior thereof; and another second extension extending to the inside of the sleeve hole 11 The segment 141b and the other third straight segment / 141c are each filled with a pressing block 30 therein. The pressing block 30 has an opposite first end portion 31 and a second end portion 32. The first end portion 31 is pushed by the bolt 21/22, the second end portion 32 has a pressing surface 320, and the pressing surface 320 is located. The wall of the hole 11 has the same curvature as the sleeve hole 11, and is provided with a threaded section 321 which is screwed with the threaded section 12 of the inner wall of the sleeve hole 11. The six screw holes 15 are distributed along the central axis of the body 10 at an equal central angle. Each of the screw holes 15 is closed at one end and has an opening 150 at the other end. Each of the screw holes 15 has a first one from the inside to the outside. a screw hole segment 151 and a second screw hole segment 152, one end of the second screw hole segment 152 extends to the opening 150; the weight block 16 is screwed into the first screw hole segment 151, and the muffler block 18 is screwed into the second screw hole segment 152.

When the third embodiment is operated, the user first screws the body 10 onto the shaft 40, so that the body 10 effectively presses an object 41 adjacent to the shaft 40. Where the body 10 is to be locked on the shaft 40, a) can be selected: a) rotating the bolt 20 located in the first through hole 14, when the bolt 20 is locked, the inner wall of the sleeve hole 11 is partially deformed, and the body 10 is locked at On the shaft 40; or b) screwing the bolt 21 to the second through hole 14b to push the pressing block 30 therein to abut the shaft 40 to effectively fix the body 10 on the shaft 40; or c) The third through hole 14c screws the bolt 22 to push the pressing block 30 therein to abut the shaft 40, so that the body 10 is effectively fixed to the shaft 40. Moreover, if the shaft 40 is a rotating shaft, the user tests whether the body 10 is in equilibrium with respect to the shaft 40. When it is in an unbalanced state, the weight 16 is screwed to the corresponding screw hole 15. When the first screw hole portion 151 of the partial screw hole 15 is screwed into the weighted block 16 with the screw thread, and the shaft 40 is stably rotated, the second screw hole 152 segments of all the screw holes 15 are screwed one by one. The muffler block 18 with a thread can eliminate the high frequency noise generated by the screw hole 15 during the high speed operation, and the maintenance of the screw hole 15 to prevent the screw hole 15 from rusting and affect the balance precision, thereby ensuring the shaft. The life and accuracy of the rod 40. Wherein, when the weight 16 is screwed on the body 10 to complete the weight, the second screw hole 152 of each screw hole 15 is screwed into a sound-absorbing block 18, because all the sound-insulating blocks 18 screwed in are arranged at an equal central angle. Therefore, it will not affect the steady state of the weight of the body 10.

IV. Other preferred embodiments

Referring to the first and twelfth embodiments, a preferred embodiment of the present invention is designed such that the first through hole 14 extends through the first dividing groove 19, and the first through hole 14 is divided into two by the first dividing groove 19. The straight extension 140/141 has a first straight extension 141 connected to a through hole 142. The through hole 142 extends radially along the body 10, and one end thereof is opened to the inside of the sleeve hole 11, and a pressing block 30 is filled in the through hole 142. The pressing block 30 has an opposite first end portion 31 and a second end portion 32. The first end portion 31 receives the first bolt 20 and the second end portion 32 has a pressing surface 320. The sleeve 320 is located on the wall of the sleeve hole 11 and has the same curvature as the sleeve hole 11 and is provided with a threaded section 321 which is screwed together with the threaded section 12 of the inner wall of the sleeve hole 11. When the bolt 20 is locked to the first through hole 14, on the one hand, the inner wall of the sleeve hole 11 is locally deformed, and on the other hand, the pressing block 30 is pushed up against the shaft 40, and the body 10 is locked to the shaft 40. In a preferred embodiment, the end of the bolt 20 is provided with a tapered surface 200, and the first end portion 31 of the pressing block 30 is provided with a matching tapered surface 33. When the bolt 20 is fed, the tapered surface 200 and the tapered surface 33 are used. The mating action allows the pressing block 30 to be fed more smoothly toward the central axis of the body 10.

Referring to the thirteenth and fourteenth drawings, in a preferred embodiment of the present invention, except that the body 10 has a first dividing groove 19 transverse to the inner wall of the sleeve hole 11, the first through hole 14 is connected to the first section. The groove 19 and the locking bolt 20 cause a pair of opposing walls of the first dividing groove 19 to generate a reverse force, and the inner wall of the sleeve hole 11 is locally deformed. Furthermore, a fourth through hole 14d is included, which comprises two fourth straight extending sections 140d/141d having an angle with an angle. A fourth straight extension 140d is opened to the second end surface 102 of the body 10, and has a screw thread for a bolt 23 to be screwed, and the other fourth straight extension 141d is opened to the inner wall of the sleeve hole 11 and is filled with a pressing force. Block 30. The pressing block 30 has an opposite first end portion 31 and a second end portion 32. The first end portion 31 is pushed by the bolt 23, and the second end portion 32 has a pressing surface 320. The pressing surface 320 is located. The wall of the hole 11 has the same curvature as the sleeve hole 11, and is provided with a threaded section 321 which is screwed with the threaded section 12 of the inner wall of the sleeve hole 11.

IV. Conclusion

Therefore, it can be summarized from the above specific embodiments that the present invention has the following advantages:

1. The shaft locking precision nut of the invention has the function of compound locking, which not only can stably and securely lock the objects on the shaft, but also has multiple selection operation functions, thereby greatly improving the convenience of use.

2. The shaft locking nut of the invention has the functions of deformation and staggering locking, can stably and securely lock the components on the shaft, and has multiple selection operation functions, greatly improving the convenience of use and improving the locking. efficacy.

3. The shaft locking nut of the invention has multi-directional omnidirectional, counterweight and muffling functions, can stably and securely lock the components on the shaft, improve the convenience of use, and improve the rotation stability and reduce the shaft rotation. noise.

The above is only a possible embodiment of the present invention, and is not intended to limit the scope of the patents of the present invention, and the equivalent implementations of other changes according to the contents, features and spirits of the following claims should be It is included in the patent of the present invention. The invention is specifically defined in the structural features of the request item, is not found in the same kind of articles, and has practicality and progress, has met the requirements of the invention patent, and has filed an application according to law, and invites the bureau to approve the patent according to law to maintain the present invention. The legal rights of the applicant.

10. . . Ontology

101. . . First end face

102. . . Second end face

103. . . Bevel

11. . . Set of holes

12,144,321. . . Screw segment

14. . . First perforation

140,141. . . First stretch

142. . . Through hole

143,150. . . Opening

14b. . . Second perforation

14c. . . Third perforation

14d. . . Third perforation

140b, 141b. . . Second straight section

140c, 141c. . . Third straight section

140d, 141d. . . Fourth straight section

15. . . Screw hole

151. . . First screw hole segment

152. . . Second screw hole segment

16. . . Counterweight

18. . . Silencing block

19. . . First section

190. . . Second groove

20,21,22. . . bolt

30. . . Tight block

31. . . First end

32. . . Second end

320. . . Forced face

40. . . Shaft

41. . . object

The first figure is a schematic view of the basic structure of the invention and its application to a shaft.

The second drawing is a front view of the first embodiment of the present invention.

The third figure is a schematic cross-sectional view taken from the A-A side of the second figure.

The fourth figure is a front view of a second embodiment of the present invention.

The fifth figure is a schematic cross-sectional view taken from the A-A plane of the fourth figure.

Figure 6 is a front elevational view of a third embodiment of the present invention.

The seventh figure is a schematic cross-section of the surface of Figure A-A1 of Figure 6.

The eighth figure is a schematic view of the section from the A-A2 surface of the sixth figure.

Figure 9 is a schematic cross-sectional view showing a second embodiment of the present invention for deforming a sleeve hole.

Figure 11 is a schematic cross-sectional view showing a third embodiment of the present invention for deforming a sleeve.

Figure 11 is a schematic cross-sectional view showing a fourth embodiment of the present invention for deforming a sleeve.

Figure 12 is a schematic cross-sectional view showing a preferred embodiment of the present invention.

Figure 13 is a front elevational view of another preferred embodiment of the present invention.

The fourteenth figure is a schematic view of the section from the A-A plane of the thirteenth figure

10. . . Ontology

11. . . Set of holes

12. . . Screw segment

14. . . First perforation

14b. . . Second perforation

14c. . . Third perforation

15. . . Screw hole

18. . . Silencing block

19. . . First section

20,21,22. . . bolt

30. . . Tight block

Claims (9)

A composite lock precision nut, comprising: a body for being fixed on a shaft and rotating along the shaft, wherein the outer peripheral contour is cylindrical and has an opposite first end surface and a second end surface, The first end face bears on an assembly adjacent to the shaft to maintain good support of the shaft and the assembly; a set of holes extending axially along the body and having a circular cross section, the sleeve The inner wall of the hole is provided with a first threaded section for screwing on the shaft; a first section is transverse to the inner wall of the sleeve; and a plurality of first perforations having a first end and an opposite end The second end is parallel to the axial direction of the body and communicates with the first dissection groove, the first end opening is located at the second end surface of the body; the first perforated inner wall is provided with a thread to lock a first end a bolt, wherein the first bolt generates a reverse force to the two pairs of walls of the first dividing groove, the inner wall of the sleeve is partially deformed, and the body is locked on the shaft; the plurality of second perforations, a plurality of second perforations and the plurality of first perforations are sequentially interleaved along a central axis of the sleeve hole And the plurality of second perforations and the plurality of first perforations have different extending directions for providing at least two selections of locking operations; the second perforations include two second straight extending segments connected, the second The straight extending section is respectively opened to the outer peripheral surface of the body and the inside of the set of holes; the second straight extending section opened to the outer peripheral surface of the body has an internal thread for a second bolt to be screwed into the inside; the first opening to the inside of the set of holes a second straight section for filling a first pressing block; the first pressing block has an opposite first end and a second end; the first end is subjected to the second bolt pushing; The second end portion has a first urging surface; the first urging surface is located on the wall surface of the sleeve hole, and has the same curvature as the sleeve hole, and is provided with a second screw segment, the second screw segment and the second screw portion The first screw segment of the inner wall of the sleeve is co-threaded. The composite lock precision nut according to claim 1, wherein the first through hole penetrates the first cutting groove, and the first bolt is locked with the reverse force generated by the first through hole to make the two The walls are close to each other. The composite nut of the composite lock according to claim 1, wherein a position of the outer peripheral surface of the body adjacent to the first end surface is provided with a second dividing groove, the first dividing groove is adjacent to the second end surface; A through hole penetrates the first and second divided grooves. The composite lock precision nut according to claim 1, wherein the at least one second through hole extends in the radial direction of the body; the body is provided with at least one third through hole; the third through hole The axial direction has an angle with the axial direction of the second perforation and the axial direction of the main body, and includes two connected third straight extending sections; the second straight extending sections are respectively opened to the outer peripheral surface of the body and the set of holes Internally, a third straight section extending to the outer peripheral surface of the body has an internal thread for a third bolt to be screwed into the interior thereof, and another third straight section extending to the inside of the sleeve for a second pressing block The second pressing block has an opposite first end portion and a second end portion; the first end portion receives the third bolt pushing; the second end portion has a second pressing surface The second engaging surface is located on the wall surface of the sleeve, and has the same curvature as the sleeve hole, and is provided with a third screw segment, the third screw segment and the first screw segment of the inner wall of the sleeve hole Total thread. The composite lock precision nut according to claim 4, wherein a circumferential surface of the body and the second end surface form a slope, and one of the third through holes extends to the slope. The composite lock precision nut according to claim 4, wherein the second perforation and the third perforation are plural, the same number, and sequentially staggered along a central axis of the sleeve hole. The composite lock precision nut according to claim 1, wherein the first through hole penetrates the first dividing groove, and the first dividing groove is divided into two first straight extending portions, and a first straight extending portion thereof Duan Lian a through hole extending along the body, and one end is open to the inside of the sleeve hole, the through hole is filled with a third pressing block; the third pressing block has an opposite first end And a second end portion, the first end portion receives the first bolt pushing, and the second end portion has a third urging surface, the third urging surface is located on the wall surface of the sleeve hole, and the curvature thereof The sleeve holes are the same, and a fourth screw segment is provided, and the fourth screw segment is screwed with the first screw segment of the inner wall of the sleeve hole. The composite lock precision nut according to claim 7, wherein the first bolt end is provided with a tapered surface, and the first end of the pressing block is provided with a matching tapered surface. The composite lock precision nut according to claim 1, further comprising a fourth through hole, wherein the fourth through hole comprises two fourth straight extending sections, wherein the two fourth straight extending sections have an angle in an axial direction; a fourth straight extension is opened to the second end surface of the body, wherein the screw has a screw for a fourth bolt; and the fourth straight extension is opened to the inner wall of the sleeve, and a fourth forced portion is filled therein a second block having an opposite first end and a second end, the first end of which receives the fourth bolt pushing, and the second end has a fourth engaging surface The fourth urging surface is located on the wall surface of the sleeve hole, and has the same curvature as the sleeve hole, and is provided with a fifth screw segment, and the fifth screw segment is snailed with the first screw segment of the inner wall of the sleeve hole tooth.