Ultrathin type constant-twist screwing-on device
By designing an ultra-thin constant torque tightening device, and utilizing the transmission connection between the output wheel and the connecting shaft, the problem of manual pre-tightening being unable to achieve final tightening is solved, enabling rapid final tightening and efficient assembly, and reducing labor intensity.
Patent Information
- Application Number
- CN202520222474.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-12
AI Technical Summary
In existing technologies, manual pre-tightening cannot achieve final tightening, requiring the use of hydraulic wrenches, which increases labor intensity and reduces assembly efficiency.
Design an ultra-thin constant torque tightening device. Through the transmission connection between the output wheel and the connecting shaft, the external force of the input component drives the connecting shaft to rotate, thereby achieving the pre-tightening torque of the target component and avoiding the need for an additional hydraulic wrench.
It enables quick final tightening without the aid of a hydraulic wrench, reducing labor intensity and improving assembly efficiency, and can apply a preload torque of up to 1000 Nm.
Smart Images
Figure CN223734796U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fastener technical field especially is a kind of ultra-thin type fixed torsion up-dressing device. BACKGROUND
[0002] Final tightening is the last step in the bolt connection process, and it is also the most important step. During the final tightening phase, the bolt that has been initially tightened is tightened to a specified torque value or torsion angle value by tools such as wrenches and torque wrenches, to ensure that the fastening degree of the connecting piece meets the design requirements, to ensure the friction and clamping force between the connecting pieces, and to improve the reliability and stability of the connection. Although initial tightening can bring the connecting piece and the bolt into a certain pre-tightened state, it cannot ensure the stability of long-term use. Through final tightening, the pre-tightening force can be further increased, making the fastening force of the bolt more stable and less likely to loosen. This helps to prevent connection failure or safety accidents caused by bolt loosening.
[0003] Currently, the connecting piece and the bolt are first brought into a certain pre-tightened state by manual up-dressing, but since no pre-tightening torque is generated during manual pre-tightening, manual pre-tightening cannot achieve final tightening, and hydraulic wrenches are still needed to achieve final tightening, increasing the labor intensity of workers and reducing assembly efficiency. SUMMARY
[0004] The utility model provides a kind of ultra-thin type fixed torsion up-dressing device to the deficiency of prior art, realizes that target component generates pre-tightening torque, without extra hydraulic wrench, final tightening can be realized, up-dressing pre-tightening time is short, reduce labor intensity, improve assembly efficiency.
[0005] To solve the above technical problems, the utility model adopts the following technical solutions:
[0006] The utility model provides a kind of ultra-thin type fixed torsion up-dressing device, including mounting seat, and the output wheel and connecting shaft rotationally connected in mounting seat, the output wheel is coaxially provided with docking slot, the connecting shaft is provided with access slot, the output wheel is transmission connection with connecting shaft, the torque of the output wheel is greater than the torque of connecting shaft, the docking slot is used to adapt with target component, the access slot is used to adapt with input component;
[0007] When target component needs to generate pre-tightening torque, input component is rotated by external force to drive connecting shaft to rotate, drives the output wheel to rotate, and the torque of target component is greater than the torque of connecting shaft, to realize that target component generates pre-tightening torque.
[0008] Among them, the connecting shaft includes rotary rod and worm connected with rotary rod, the worm is engaged with the output wheel, the diameter of the worm is less than the diameter of the output wheel, and the access slot is arranged on the rotary rod;
[0009] When the rotating rod rotates, the worm is rotated to rotate the output wheel.
[0010] The rotating rod is provided with a positioning groove, the worm is provided with a positioning part, the positioning part is matched and inserted into the positioning groove, the rotating rod is provided with a positioning hole communicated with the positioning groove, the positioning part is provided with a mounting hole corresponding to the positioning hole, and the connecting pin is arranged between the positioning hole and the mounting hole.
[0011] The worm is provided with a first bearing and a second bearing respectively installed at two ends of the worm, the mounting seat is provided with a first mounting groove and a second mounting groove matched with the first bearing and the second bearing respectively, and the first bearing and the second bearing are installed in the first mounting groove and the second mounting groove respectively.
[0012] The mounting seat is provided with a baffle, the baffle is provided with an access hole, a third bearing is installed at one end of the rotating rod away from the worm, the third bearing is located in the access hole, and the access groove is communicated with the access hole.
[0013] The mounting seat is provided with a first containing groove and a second containing groove matched with the rotating rod and the worm respectively, the rotating rod and the worm are located in the first containing groove and the second containing groove respectively, the mounting seat is provided with a receiving cavity matched with the output wheel, the receiving cavity is communicated with the second containing groove, and the output wheel is located in the receiving cavity.
[0014] The top end of the mounting seat is provided with a cover plate, the rotating rod, the worm and the output wheel are located on the inner side of the cover plate, the cover plate is provided with a first connecting hole, the mounting seat is provided with a second connecting hole communicated with the side, away from the cover plate, of the receiving cavity, and the two ends of the butt joint groove are communicated with the first connecting hole and the second connecting hole respectively.
[0015] The two ends of the output wheel are provided with a lower gasket and an upper gasket respectively, the mounting seat is provided with a lower protection groove, the lower gasket is located in the lower support groove, the cover plate is provided with an upper protection groove, and the upper gasket is located in the upper protection groove.
[0016] The side surface of the cover plate is provided with a plurality of first plug holes, the mounting seat is provided with a second plug hole corresponding to the first plug hole, and the mounting pin is plugged and inserted between the first plug hole and the second plug hole.
[0017] The baffle is provided with an outer dismounting hole, the mounting seat is provided with an inner dismounting hole, the outer dismounting hole is provided with a locking piece, and the inner end of the locking piece is screw-connected to the inner dismounting hole.
[0018] The beneficial effects of the utility model are as follows:
[0019] In actual application, the input component is installed in cooperation with the access slot, the butt joint slot is connected with the target component, the input component is driven to rotate by external force to drive the connecting shaft to rotate, drive the output wheel to rotate, and make the torque of the target component greater than the torque of the connecting shaft, so as to realize that the target component generates pre-tightening torque, and the final tightening can be realized without additional hydraulic wrench, the pre-tightening time is short, the labor intensity is reduced, and the assembly efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the ultra-thin torque fixing and tightening device.
[0021] Figure 2 It is a schematic diagram of the connection structure of the output wheel and the connecting shaft.
[0022] Figure 3 It is an exploded view of the connection structure of the rotating rod and the worm.
[0023] Figure 4 It is an exploded structure three-dimensional view of the mounting seat, the output wheel, the connecting shaft and the baffle.
[0024] Figure 5 It is an exploded view of the cover plate, the mounting seat, the output wheel, the connecting shaft and the baffle.
[0025] Figure 6 It is a structure sectional view of the mounting seat.
[0026] Figure 7 It is an exploded structure schematic diagram of the output wheel, the lower gasket, the upper gasket and the cover plate.
[0027] Figure 8 It is an exploded view of the output wheel, the lower gasket, the upper gasket and the cover plate.
[0028] Figure 9 It is a schematic diagram of the mounting structure of the cover plate and the mounting seat.
[0029] Figure 10 It is an exploded view of the mounting structure of the baffle and the mounting seat.
[0030] 1, mounting seat;
[0031] 101, first mounting slot; 102, second mounting slot;
[0032] 103, first accommodating slot; 104, second accommodating slot;
[0033] 105, receiving cavity; 106, second connecting hole;
[0034] 107, lower protection slot; 108, second plug hole;
[0035] 2, output wheel; 201, butt joint slot;
[0036] 21, lower gasket; 22, upper gasket;
[0037] 3, connecting shaft; 301, access slot;
[0038] 31, rotating rod; 311, positioning slot; 312, positioning hole;
[0039] 313, third bearing;
[0040] 32, worm; 321, positioning part; 3211, mounting hole;
[0041] 322, first bearing; 323, second bearing;
[0042] 33, connecting pin;
[0043] 4, baffle; 401, access hole;
[0044] 5, cover plate; 51, first connecting hole; 52, upper protection groove;
[0045] 53, first plug hole;
[0046] 6, mounting pin. DETAILED DESCRIPTION
[0047] In order to facilitate the understanding of those skilled in the art, the present application will be further described below in conjunction with the embodiments and drawings. The specific embodiments of the present application will be described below, and it should be noted that, in the specific description of these embodiments, in order to be brief and concise, the present description cannot describe all the features of the actual embodiments in detail.
[0048] Reference Figures 1 to 10 As shown in the drawings, the utility model provides a kind of ultra-thin type fixed-torque upper buckle device, including mounting seat 1, and the output wheel 2 and connecting shaft 3 of rotation connection in mounting seat 1, the output wheel 2 coaxially is provided with docking slot 201, the connecting shaft 3 is provided with access slot 301, the output wheel 2 is transmission connection with connecting shaft 3, the torque of the output wheel 2 is greater than the torque of connecting shaft 3, the docking slot 201 is used to adapt with target component, the access slot 301 is used to adapt with input component.
[0049] Reference Figure 1As shown, in actual application, the input component is installed in cooperation with the access slot, and the target component is connected with the butt joint slot. The input component can be manually driven to rotate the connecting shaft 3 by manual force, or the input component can be connected with the motor drive to automatically drive the connecting shaft 3 to rotate. The input component is driven to rotate by external force, which drives the connecting shaft 3 to rotate, drives the output wheel 2 to rotate, and makes the torque of the target component greater than the torque of the connecting shaft 3, so as to generate a pre-tightening torque of the target component. The final tightening can be achieved without the help of a hydraulic wrench. The pre-tightening torque can be loaded to 1000Nm, the pre-tightening time is short, the labor intensity is reduced, and the assembly efficiency is improved. Specifically, the access slot 301 is a regular hexagonal structure, and the target component is a flange bolt, which is convenient for accurately adapting the flange bolt 。
[0050] Reference Figure 1 、 2 As shown, in the embodiment, the connecting shaft 3 includes a rotating rod 31 and a worm 32 connected with the rotating rod 31. The worm 32 is engaged with the output wheel 2. The diameter of the worm 32 is smaller than the diameter of the output wheel 2. The access slot 301 is arranged on the rotating rod 31. In actual application, the rotating rod 31 is driven to rotate by external force, thereby driving the worm 32 to rotate. The output wheel 2 and the target component are driven to rotate under the meshing action of the worm 32 and the output wheel 2. Since the diameter of the worm 32 is smaller than the diameter of the output wheel 2, the input torque transmitted by the rotating rod 31 is increased, so that the target component generates a pre-tightening torque, reduces the labor intensity, and improves the assembly efficiency.
[0051] Reference Figure 3 As shown, in the embodiment, the rotating rod 31 is provided with a positioning slot 311, the worm 32 is provided with a positioning portion 321, the positioning portion 321 is inserted into the positioning slot 311 in cooperation, the rotating rod 31 is provided with a positioning hole 312 communicating with the positioning slot 311, the positioning portion 321 is provided with a mounting hole 3211 corresponding to the positioning hole 312, and the connecting pin 33 is arranged between the positioning hole 312 and the mounting hole 3211. In actual application, by arranging the positioning portion 321 and the positioning slot 311, the coaxiality between the rotating rod 31 and the worm 32 is ensured, which is beneficial to stable torque transmission. The rotating rod 31 and the worm 32 can be installed and disassembled by pulling and inserting the connecting pin 33, which is convenient to install.
[0052] Reference Figure 4As shown, in the embodiment, the worm 32 is respectively provided with a first bearing 322 and a second bearing 323 at two ends, the mounting seat 1 is provided with a first mounting groove 101 and a second mounting groove 102 matched with the first bearing 322 and the second bearing 323 respectively, and the first bearing 322 and the second bearing 323 are respectively mounted in the first mounting groove 101 and the second mounting groove 102. The first bearing 322 and the second bearing 323 are arranged to stably support the two ends of the worm 32, so that the worm 32 can stably rotate.
[0053] Referring to Figure 4 As shown, in the embodiment, the mounting seat 1 is provided with a baffle 4, the baffle 4 is provided with an access hole 401, a third bearing 313 is arranged at one end of the rotating rod 31 away from the worm 32, the third bearing 313 is located in the access hole 401, the access groove 301 is communicated with the access hole 401, and the third bearing 313 is arranged to support one end of the rotating rod 31, so that the rotating rod 31 can stably rotate. In actual application, one end of an input component is inserted into the access hole 401 and mounted in the access groove 301, the third bearing 313 supports the connection between the input component and the rotating rod 31, so that the input component and the rotating rod 31 can stably rotate. Specifically, the baffle 4 is detachably connected with the mounting seat 1, the baffle 4 is removed from the mounting seat 1, and then the rotating rod 31 or the third bearing 313 can be replaced or cleaned, so that the structure is simple and convenient to clean.
[0054] Referring to Figure 4 As shown, in the embodiment, the mounting seat 1 is provided with a first containing groove 103 and a second containing groove 104 matched with the rotating rod 31 and the worm 32 respectively, the rotating rod 31 and the worm 32 are located in the first containing groove 103 and the second containing groove 104 respectively, the mounting seat 1 is provided with a receiving cavity 105 matched with the output wheel 2, the receiving cavity 105 is communicated with the second containing groove 104, and the output wheel 2 is located in the receiving cavity 105. The rotating rod 31 and the worm 32 are arranged in the mounting seat 1, so that the structure occupies a small space and is arranged compactly, and the normal use of the rotating rod 31 and the worm 32 is also met.
[0055] Referring to Figure 5 , 6 As shown, in the embodiment, the mounting seat 1 is provided with a cover plate 5 at the top end, the rotating rod 31, the worm 32 and the output wheel 2 are located on the inner side of the cover plate 5, the cover plate 5 is provided with a first connecting hole 51, the mounting seat 1 is provided with a second connecting hole 106 communicated with one side of the receiving cavity 105 away from the cover plate 5, and the two ends of the butt joint groove 201 are respectively communicated with the first connecting hole 51 and the second connecting hole 106. The cover plate 5 is arranged to effectively protect the rotating rod 31, the worm 32 and the output wheel 2, prevent impurities or dust from the outside from entering the mounting seat 1 to affect the normal use of the structure, facilitate the effective use of the structure, and ensure the safety of the structure.
[0056] Reference Figure 1 、 5 , 6, in actual application, the target part is inserted into the butt joint groove 201, the first connecting hole 51 and the second connecting hole 106, the target part is matched with the butt joint groove 201, the quick installation of the target part and the output wheel 2 is realized; the output wheel 2 can be placed in a narrow space to adapt to the connection of the corresponding target part, the input part is connected through the access slot 301, the input torque of the input part can be smoothly amplified at the output wheel 2, so that the target part can smoothly generate pretightening torque, and the target part can smoothly generate pretightening torque in a narrow space.
[0057] Reference Figure 7 、 8 , in the embodiment, the two ends of the output wheel 2 are respectively provided with a lower gasket 21 and an upper gasket 22, the mounting seat 1 is provided with a lower protection groove 107, the lower gasket 21 is located in the lower protection groove 107, the cover plate 5 is provided with an upper protection groove 52, and the upper gasket 22 is located in the upper protection groove 52, the lower gasket 21 and the upper gasket 22 are arranged, which effectively protects the two ends of the output wheel 2 and ensures the normal rotation of the output wheel 2; in actual application, the cover plate 5 is removed from the mounting seat 1, and the output wheel 2, the lower gasket 21 and the upper gasket 22 can be replaced and cleaned smoothly, the structure is simple, and the output wheel 2 is convenient to install and disassemble.
[0058] Reference Figure 9 , in the embodiment, the side surface of the cover plate 5 is provided with a plurality of first plug-in holes 53, the mounting seat 1 is provided with a second plug-in hole 108 corresponding to the first plug-in hole 53, and the mounting pin 6 is plugged between the first plug-in hole 53 and the second plug-in hole 108; in actual application, the first plug-in hole 53 and the second plug-in hole 108 are both semicircular structures, the cover plate 5 is smoothly covered on the mounting seat 1, the first plug-in hole 53 and the corresponding second plug-in hole 108 are combined to form a complete circular hole, the mounting pin 6 is inserted into the circular hole to realize the installation of the cover plate 5 and the mounting seat 1, the stable installation of the cover plate 5 and the mounting seat 1 can be realized through the semicircular hole, the thickness of the connection between the mounting seat 1 and the cover plate 51 is reduced, the structure is light and thin, and the manufacturing cost is reduced.
[0059] Reference Figure 1 、 10 , in the embodiment, the baffle 4 is provided with an outer dismounting hole 402, the mounting seat 1 is provided with an inner dismounting hole 109, the outer dismounting hole 402 is provided with a locking piece 403, the inner end of the locking piece 403 is threadedly connected to the inner dismounting hole 109, the locking piece 403 is a locking screw, and the baffle 4 can be installed or dismounted by rotating the locking piece 403, which is convenient for quickly dismounting the baffle 4.
[0060] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed as above in the preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the disclosed technical content without departing from the technical solution of the present application, and any equivalent embodiment with equivalent changes is equivalent to the above embodiment. Any simple modification, equivalent change and modification of the above embodiment according to the present application are within the scope of the technical solution of the present application.
Claims
1. An ultra-thin torque setting make-up device, characterized in that, The utility model provides a kind of output wheel (2) and connecting shaft (3) are rotatably connected to mounting seat (1), the output wheel (2) coaxially is provided with docking slot (201), the connecting shaft (3) is provided with access slot (301), the output wheel (2) is transmission connection with connecting shaft (3), the torque of the output wheel (2) is greater than the torque of connecting shaft (3), the docking slot (201) is used to adapt with target component, the access slot (301) is used to adapt with input component; When the target component needs to generate pre-tightening torque, the input component is rotated by external force to drive the connecting shaft (3) to rotate, which in turn drives the output wheel (2) to rotate, and the torque of the target component is greater than the torque of the connecting shaft (3), so as to realize the target component to generate pre-tightening torque.
2. The ultra-thin torque setting make-up device of claim 1, wherein, The connecting shaft (3) includes a rotating rod (31) and a worm (32) connected to the rotating rod (31), the worm (32) is engaged with the output wheel (2), the diameter of the worm (32) is smaller than the diameter of the output wheel (2), and the access slot (301) is arranged on the rotating rod (31). When the rotating rod (31) rotates, the worm (32) is driven to rotate, so that the output wheel (2) rotates.
3. The ultra-thin torque setting make-up device of claim 2, wherein, The rotating rod (31) is provided with a positioning slot (311), the worm (32) is provided with a positioning portion (321), the positioning portion (321) is inserted into the positioning slot (311), the rotating rod (31) is provided with a positioning hole (312) communicating with the positioning slot (311), the positioning portion (321) is provided with a mounting hole (3211) corresponding to the positioning hole (312), and a connecting pin (33) is arranged between the positioning hole (312) and the mounting hole (3211).
4. The ultra-thin torque setting make-up device of claim 2, wherein, The two ends of the worm (32) are respectively provided with a first bearing (322) and a second bearing (323), and the mounting seat (1) is provided with a first mounting slot (101) and a second mounting slot (102) respectively matched with the first bearing (322) and the second bearing (323), and the first bearing (322) and the second bearing (323) are respectively arranged in the first mounting slot (101) and the second mounting slot (102).
5. The ultra-thin torque setting make-up device of claim 2, wherein, The mounting seat (1) is provided with a baffle (4) having an access hole (401), one end of the rotating rod (31) away from the worm (32) is provided with a third bearing (313), the third bearing (313) is located in the access hole (401), and the access slot (301) communicates with the access hole (401).
6. The ultra-thin torque setting make-up device of claim 2, wherein, The mounting seat (1) is provided with a first accommodating slot (103) and a second accommodating slot (104) respectively matched with the rotating rod (31) and the worm (32), the rotating rod (31) and the worm (32) are respectively located in the first accommodating slot (103) and the second accommodating slot (104), the mounting seat (1) is provided with a receiving cavity (105) matched with the output wheel (2), the receiving cavity (105) communicates with the second accommodating slot (104), and the output wheel (2) is located in the receiving cavity (105).
7. The ultra-thin torque setting make-up device of claim 6, wherein, The top end of the mounting base (1) is provided with a cover plate (5), the rotating rod (31), the worm (32) and the output wheel (2) are located inside the cover plate (5), the cover plate (5) is provided with a first connecting hole (51), the mounting base (1) is provided with a second connecting hole (106) which is in communication with the side of the receiving cavity (105) which is away from the cover plate (5), and the two ends of the butt joint groove (201) are respectively in communication with the first connecting hole (51) and the second connecting hole (106).
8. The ultra-thin torque setting make-up device of claim 7, wherein, The two ends of the output wheel (2) are respectively provided with a lower gasket (21) and an upper gasket (22), the mounting base (1) is provided with a lower protection groove (107), the lower gasket (21) is located in the lower protection groove (107), the cover plate (5) is provided with an upper protection groove (52), and the upper gasket (22) is located in the upper protection groove (52).
9. The ultra-thin torque setting make-up device of claim 7, wherein, The side of the cover plate (5) is provided with a plurality of first plug-in holes (53), the mounting base (1) is provided with second plug-in holes (108) corresponding to the first plug-in holes (53), and the mounting pin (6) is plugged between the first plug-in holes (53) and the second plug-in holes (108).
10. The ultra-thin torque setting make-up device of claim 5, wherein, The baffle (4) is provided with an outer dismounting hole (402), the mounting base (1) is provided with an inner dismounting hole (109), the outer dismounting hole (402) is provided with a locking piece (403), and the inner end of the locking piece (403) is threadedly connected to the inner dismounting hole (109).