One-way torque setting tool

Abstract

According to the one-way torque setting tool, a first branch rod of a force bearing rod is connected with a sliding sleeve, the outer surface of the sliding sleeve is smooth, the sliding sleeve is sleeved with a connecting sleeve of a driven rod, and when a connecting rod fixedly connected with the connecting sleeve abuts against a to-be-installed bolt, the sliding sleeve makes close contact with the connecting sleeve; the bolt can move away from the force bearing rod along with rotation of the threads, the torque adjusting seat extrudes the spring, and rated torque is output. After the rated torque is reached, the torque adjusting seat rotates and slips, and at the moment, the actual torque of the bolt reaches the installation standard. In the process that the connecting rod is separated from the bolt, the torque adjusting seat is reset, and the friction force between the sliding sleeve and the connecting sleeve is small, so that the sliding sleeve and the connecting sleeve slip, the probability that the bolt is reversely rotated is reduced, and the effect that the actual torque is the same as the preset torque when the bolt is separated is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of assembly tools, and particularly to a one-way torque-setting tool. Background Art

[0002] A torque-setting tool is a tool used to control the specific torque applied to a bolt or a stud to ensure the correct tightening force and prevent over-tightening or loosening. Some torque-setting tools can provide rapid and continuous rotation and are suitable for a variety of different working environments, enabling the operator to perform continuous tightening or loosening actions without removing the tool.

[0003] Currently, when the existing torque-setting tool is separated from the tightened bolt, it is likely to cause a deviation between the actual torque and the preset torque, thereby affecting the stability and safety of mechanical equipment or electrical equipment. Therefore, it is necessary to propose a one-way torque-setting tool to address the defect that traditional torque-setting tools are prone to torque errors. Utility Model Content

[0004] Based on this, it is necessary to propose a one-way torque-setting tool to address the defect that traditional torque-setting tools are prone to torque errors.

[0005] This application relates to a one-way torque-setting tool, including:

[0006] A load-bearing rod, including a first sub-rod, a second sub-rod, and a third sub-rod. The first sub-rod, the second sub-rod, and the third sub-rod are fixedly connected in sequence. The first sub-rod is a regular polygonal column, the diameter of the circumscribed circle of the first sub-rod is less than or equal to the diameter of the second sub-rod, and the diameter of the third sub-rod is less than the diameter of the second sub-rod;

[0007] A sliding sleeve sleeved on the first sub-rod, and the sliding sleeve and the first sub-rod are mutually clamped;

[0008] A driven rod, including a connecting rod and a contact sleeve. The connecting rod and the contact sleeve are fixedly connected, the central axes of the connecting rod and the contact sleeve coincide, and the contact sleeve is sleeved on the sliding sleeve;

[0009] A fixed sleeve sleeved on the second sub-rod;

[0010] A spring sleeved on the second sub-rod and also sleeved on the third sub-rod. The spring is arranged in the inner cavity of the fixed sleeve, and the first end of the spring abuts against the fixed sleeve;

[0011] An adjusting torque seat fixedly connected to the third sub-rod, and the second end of the spring abuts against the adjusting torque seat;

[0012] A connecting sleeve threadedly connected to the fixed sleeve, and the adjusting torque seat abuts against the bottom of the inner cavity of the connecting sleeve;

[0013] An insulating shell is sleeved on the outer surfaces of the driven rod, the fixed sleeve and the connecting sleeve.

[0014] Further, the insulating shell includes a rod-bearing shell and a body;

[0015] The rod-bearing shell is sleeved on the outer surface of the connecting rod;

[0016] The rod-bearing shell is sleeved on the outer surface of the contact sleeve;

[0017] The rod-bearing shell is fixedly connected to the body.

[0018] Further, the connecting rod includes a connecting groove;

[0019] The connecting groove is arranged at one end far from the connecting sleeve;

[0020] The geometric shape of the cross-section of the connecting groove includes one of a triangle, a quadrilateral, a pentagon or a hexagon.

[0021] Further, the insulating shell further includes a sealing gasket;

[0022] The body is sleeved on the sealing gasket;

[0023] The body is fixedly connected to the sealing gasket;

[0024] The sealing gasket is arranged at one end far from the sliding sleeve;

[0025] The sealing gasket is arranged close to the bottom end of the torque adjusting seat.

[0026] Further, the torque adjusting seat includes a base;

[0027] The base includes a first split body and a second split body;

[0028] The first split body and the second split body are fixedly connected;

[0029] Both the first split body and the second split body are provided with through holes;

[0030] The third split rod is arranged in the through hole.

[0031] Further, the first split body is provided with a first through hole;

[0032] The third split rod is provided with a second through hole;

[0033] The central axis of the first through hole coincides with the central axis of the second through hole;

[0034] A pin is arranged between the first through hole and the second through hole.

[0035] Further, the diameter of the first split body is smaller than that of the second split body;

[0036] The second split body is provided with a plurality of accommodating holes;

[0037] Each of the accommodating holes is arranged in a circumferential array at equal intervals around the central axis of the second split body;

[0038] Each of the accommodating holes is provided with a sliding bead;

[0039] The diameter of the sliding bead is greater than the thickness of the second split body.

[0040] Further, the torque adjusting seat further includes a sleeve seat;

[0041] The sleeve seat is sleeved on the side wall of the first split body;

[0042] The bottom of the sleeve seat is attached to the second split body;

[0043] The second end of the spring abuts against the top of the sleeve seat.

[0044] Further, the connecting sleeve includes a side ring plate and a bottom platform;

[0045] The side ring plate and the bottom platform are fixedly connected;

[0046] The side ring plate is sleeved on the outer surface of the sleeve seat;

[0047] The bottom platform abuts against the sliding bead;

[0048] The end of the bottom platform is provided with a plurality of grooves;

[0049] Further, one sliding bead is arranged in one groove.

[0050] This application relates to a unidirectional torque fixing tool. The sliding sleeve is connected through the first sub-rod of the load-bearing rod. The outer surface of the sliding sleeve is smooth. The connecting sleeve of the driven rod is sleeved on the sliding sleeve. When the connecting rod fixedly connected to the connecting sleeve abuts against the bolt to be installed, the sliding sleeve is in close contact with the connecting sleeve. As the bolt rotates along the thread, it will move away from the load-bearing rod. The torque adjusting seat compresses the spring to output the rated torque. After reaching the rated torque, the torque adjusting seat rotates self, and slips. At this time, the actual torque of the bolt reaches the installation standard. During the process of separating the connecting rod from the bolt, the torque adjusting seat resets, and the friction between the sliding sleeve and the connecting sleeve is small, so the sliding sleeve and the connecting sleeve slip, reducing the probability of the bolt being rotated in the reverse direction, and thus ensuring the effect that the actual torque is the same as the preset torque when the bolt is separated. Description of the Drawings

[0051] Figure 1Schematic structural diagram of a one-way torque-setting tool provided by an embodiment of the present application.

[0052] Figure 2 Schematic structural diagram of an insulating shell of a one-way torque-setting tool provided by an embodiment of the present application.

[0053] Figure 3 Schematic structural diagram of a one-way torque-setting tool removing the insulating shell and the socket provided by an embodiment of the present application.

[0054] Figure 4 Schematic structural diagram of a socket of a one-way torque-setting tool provided by an embodiment of the present application.

[0055] Reference numerals:

[0056] 100 - load-bearing rod; 110 - first sub-rod; 120 - second sub-rod; 130 - third sub-rod; 200 - sliding sleeve;

[0057] 300 - driven rod; 310 - connecting rod; 311 - connecting groove; 320 - contact sleeve; 400 - fixing sleeve;

[0058] 500 - spring; 600 - torque adjusting seat; 610 - base; 611 - first split body; 612 - second split body;

[0059] 613 - through hole; 614 - first through hole; 615 - second through hole; 616 - pin; 617 - accommodating hole;

[0060] 620 - sliding bead; 630 - socket; 700 - connecting sleeve; 710 - side ring plate; 720 - bottom platform; 730 - groove;

[0061] 800 - insulating shell; 810 - rod-bearing shell; 820 - body; 830 - sealing gasket. Detailed implementation manners

[0062] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0063] The present application provides a one-way torque-setting tool.

[0064] As Figure 1 shown, in an embodiment of the present application, a one-way torque-setting tool includes a load-bearing rod 100, a sliding sleeve 200, a driven rod 300, a fixing sleeve 400, a spring 500, a torque adjusting seat 600, a connecting sleeve 700320 and an insulating shell 800.

[0065] The load-bearing rod 100 includes a first sub-rod 110, a second sub-rod 120, and a third sub-rod 130. The first sub-rod 110, the second sub-rod 120, and the third sub-rod 130 are fixedly connected in sequence. The first sub-rod 110 is a regular polygonal column, the diameter of the circumscribed circle of the first sub-rod 110 is less than or equal to the diameter of the second sub-rod 120, and the diameter of the third sub-rod 130 is less than the diameter of the second sub-rod 120.

[0066] The sliding sleeve 200 is sleeved on the first sub-rod 110, and the sliding sleeve 200 and the first sub-rod 110 are mutually clamped.

[0067] The driven rod 300 includes a connecting rod 310 and a contact sleeve 320. The connecting rod 310 and the contact sleeve 320 are fixedly connected. The central axis of the connecting rod 310 coincides with the central axis of the contact sleeve 320. The contact sleeve 320 is sleeved on the sliding sleeve 200.

[0068] The fixing sleeve 400 is sleeved on the second sub-rod 120.

[0069] The spring 500 is sleeved on the second sub-rod 120, the spring 500 is sleeved on the third sub-rod 130, the spring 500 is arranged in the inner cavity of the fixing sleeve 400, and the first end of the spring 500 abuts against the fixing sleeve 400.

[0070] The torque adjusting seat 600 is fixedly connected to the third sub-rod 130, and the second end of the spring 500 abuts against the torque adjusting seat 600.

[0071] The connecting sleeve 700 is threadedly connected to the fixing sleeve 400, and the torque adjusting seat 600 abuts against the bottom of the inner cavity of the connecting sleeve 700.

[0072] The insulating shell 800 is sleeved on the outer surfaces of the driven rod 300, the fixing sleeve 400, and the connecting sleeve 700.

[0073] Specifically, the sliding sleeve 200 is connected through the first sub-rod 110 of the load-bearing rod 100. The outer surface of the sliding sleeve 200 is smooth. The contact sleeve 320 of the driven rod 300 is sleeved on the sliding sleeve 200. When the connecting rod 310 fixedly connected to the contact sleeve 320 abuts against the bolt to be installed, the sliding sleeve 200 is in close contact with the contact sleeve 320. As the bolt rotates along the thread, it will move away from the load-bearing rod 100. The torque adjusting seat 600 squeezes the spring 500 to perform the output of the rated torque. After reaching the rated torque, the torque adjusting seat 600 rotates self, slips, and at this time the actual torque of the bolt reaches the installation standard. During the process of separating the connecting rod 310 from the bolt, the torque adjusting seat 600 resets. Since the friction force between the sliding sleeve 200 and the contact sleeve 320 is small, the sliding sleeve 200 and the contact sleeve 320 slip, reducing the probability of the bolt being rotated in the reverse direction.

[0074] This application relates to a unidirectional torque fixing tool. The fixing sleeve 400 is sleeved on the second sub-rod 120. The fixing sleeve 400 and the second sub-rod 120 can slide relative to each other. The connecting sleeve 700 is threadedly connected to the fixing sleeve 400, which realizes that the torque adjusting seat 600 can follow the load-bearing rod 100. By compressing the spring 500 through the torque adjusting seat 600, the output of the rated torque can be realized. The friction force between the sliding sleeve 200 and the contact sleeve 320 changes with the change of the extrusion force between the bolt to be installed and the load-bearing rod 100, ensuring that the actual torque is the same as the preset torque when the bolt is separated.

[0075] As Figure 2 shown, in an embodiment of the present application, the insulating shell 800 includes a rod-bearing shell 810 and a body 820. The rod-bearing shell 810 is sleeved on the outer surface of the connecting rod 310. The rod-bearing shell 810 is sleeved on the outer surface of the contact sleeve 320. The rod-bearing shell 810 is fixedly connected to the body 820.

[0076] Specifically, the rod-bearing shell 810 is sleeved on the connecting rod 310 and the contact sleeve 320, preventing the driven rod 300 from detaching from the sliding sleeve 200. The rod-bearing shell 810 is fixedly connected to the body 820 by a pin rod passing through the rod-bearing shell 810 and the body 820.

[0077] Actually, using the pin rod to fix the rod-bearing shell 810 and the body 820 can facilitate the assembly of the load-bearing rod 100, the sliding sleeve 200 and the driven rod 300. More specifically, the sliding sleeve 200 is sleeved on the first sub-rod 110, the driven rod 300 is sleeved on the sliding sleeve 200, the rod-bearing shell 810 is sleeved on the driven rod 300, and finally the assembly task can be completed by using the pin rod between the rod-bearing shell 810 and the body 820.

[0078] As Figure 1As shown, in an embodiment of the present application, the connecting rod 310 includes a connecting groove 311. The connecting groove 311 is provided at one end away from the connecting sleeve 700. The geometric shape of the cross-section of the connecting groove 311 includes one of a triangle, a quadrilateral, a pentagon, or a hexagon.

[0079] Specifically, the connecting groove 311 is used to accommodate the head of the bolt. Since most bolts use a hexagonal bolt head, the geometric shape of the connecting groove 311 is mostly hexagonal. At the same time, to expand the scope of use, the connecting groove 311 can be connected to an internal hexagonal wrench. The cross-section of the connecting part of the internal hexagonal wrench is square, so the cross-sectional shape of the connecting groove 311 also has a quadrilateral.

[0080] As Figure 1 shown, in an embodiment of the present application, the insulating housing 800 further includes a sealing gasket 830. The body 820 is sleeved on the sealing gasket 830. The body 820 is fixedly connected to the sealing gasket 830. The sealing gasket 830 is provided at one end away from the sliding sleeve 200. The sealing gasket 830 is disposed near the bottom end of the torque adjusting seat 600.

[0081] Specifically, since the distance between the torque adjusting seat 600 and the fixed sleeve 400 will affect the compression amount of the spring 500, and thus affect the output of the torque. Therefore, generally, the distance between the torque adjusting seat 600 and the sealing gasket 830, and the distance between the connecting sleeve 700 and the sealing gasket 830 need to be precisely calculated according to the rated torque. Therefore, the body 820 is fixedly connected to the sealing gasket 830. This can prevent the distance between the torque adjusting seat 600 and the sealing gasket 830, and the distance between the connecting sleeve 700 and the sealing gasket 830 from being arbitrarily modified, which improves the accuracy and stability of the one-way torque setting tool.

[0082] As Figure 3 and Figure 4 shown, in an embodiment of the present application, the torque adjusting seat 600 includes a base 610. The base 610 includes a first split body 611 and a second split body 612. The first split body 611 and the second split body 612 are fixedly connected. The first split body 611 and the second split body 612 are both provided with through holes 613. The third split rod 130 is disposed in the through holes 613.

[0083] Specifically, the third split rod 130 is accommodated in the through holes 613 so that the base 610 can be linked with the third split rod 130.

[0084] In an embodiment of the present application, the first split body 611 is provided with a first through hole 614. The third split rod 130 is provided with a second through hole 615. The central axes of the first through hole 614 and the second through hole 615 coincide. A pin 616 is provided between the first through hole 614 and the second through hole 615.

[0085] More specifically, the base 610 is fixedly connected to the third split rod 130 through the pin 616. The spring 500 is disposed between the fixed sleeve 400 and the base 610 of the torque adjusting seat 600, and the connecting sleeve 700 is threadedly connected to the fixed sleeve 400.

[0086] After the one-way torque fixing tool is assembled, the spring 500 is in a compressed state, and the spring 500 will squeeze the fixed sleeve 400 and the base 610. The second split rod 120 of the load-bearing rod 100 can slide relative to the fixed sleeve 400, so the spring 500 can elongate. When the spring 500 elongates, the elastic force provided by the spring 500 will decrease.

[0087] In an embodiment of the present application, the torque adjusting seat 600 further includes a socket 630. The socket 630 is sleeved on the side wall of the first split body 611. The bottom of the socket 630 is attached to the second split body 612. The second end of the spring 500 abuts against the top of the socket 630.

[0088] The diameter of the first split body 611 is smaller than the diameter of the second split body 612. The second split body 612 is provided with a plurality of receiving holes 617. Each of the receiving holes 617 is arranged in a circumferential array at equal intervals around the central axis of the second split body 612. Each of the receiving holes 617 is provided with a sliding bead 620. The diameter of the sliding bead 620 is larger than the thickness of the second split body 612.

[0089] Specifically, when the elastic force of the spring 500 decreases, the pressure transmitted by the socket 630 to the sliding bead 620 decreases, and the sliding bead 620 rotates around the central axis of the second split body 612 under the action of the rotational torque.

[0090] In an embodiment of the present application, the connecting sleeve 700 includes a side ring plate 710 and a bottom platform 720. The side ring plate 710 and the bottom platform 720 are fixedly connected. The side ring plate 710 is sleeved on the outer surface of the socket 630. The bottom platform 720 abuts against the sliding bead 620. A plurality of grooves 730 are provided at the end of the bottom platform 720. One sliding bead 620 is disposed in one groove 730.

[0091] Specifically, the groove 730 and the receiving hole 617 form a spatial structure for receiving the sliding beads 620. When the elastic force of the spring 500 acting on the sliding beads 620 decreases, the sliding beads 620 can slide relative to the groove 730, achieving the technical effect of slipping. This ensures that when the bolt to be assembled is subjected to the rated torque, the load-bearing rod 100 will slip and no longer apply torque to the bolt.

[0092] In fact, the contact part between the spring 500 and the socket 630 is a rough plane, and the elastic force can be converted into a frictional force perpendicular to the central axis of the second component 612. Since this frictional force has a certain distance from the rotation central axis, a rated torque can be generated. Therefore, the rated torque is proportional to the elastic force of the spring 500.

[0093] Since the spring 500 can have an amount of expansion and contraction, which is the stroke along the central axis of the second component 612 between the groove 730, the receiving hole 617 and the sliding beads 620. Therefore, the rated torque is actually a torque range, and the value range length of this torque range is related to the stroke.

[0094] The technical features of the above-described embodiments can be combined arbitrarily, and there is no limitation on the execution order of the method steps. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combinations of these technical features do not conflict, they should be considered as falling within the scope described in this specification.

[0095] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A one-way torque-setting tool, characterized in that, Comprising: A load-bearing rod, including a first sub-rod, a second sub-rod and a third sub-rod, the first sub-rod, the second sub-rod and the third sub-rod are fixedly connected in sequence, the first sub-rod is a regular polygonal column, the diameter of the circumscribed circle of the first sub-rod is less than or equal to the diameter of the second sub-rod, and the diameter of the third sub-rod is less than the diameter of the second sub-rod; A sliding sleeve, sleeved on the first sub-rod, and the sliding sleeve and the first sub-rod are mutually clamped; A driven rod, including a connecting rod and a contact sleeve, the connecting rod and the contact sleeve are fixedly connected, the central axes of the connecting rod and the contact sleeve coincide, and the contact sleeve is sleeved on the sliding sleeve; A fixing sleeve, sleeved on the second sub-rod; A spring, sleeved on the second sub-rod, the spring is sleeved on the third sub-rod, the spring is arranged in the inner cavity of the fixing sleeve, and the first end of the spring abuts against the fixing sleeve; A torque adjusting seat, fixedly connected with the third sub-rod, and the second end of the spring abuts against the torque adjusting seat; A connecting sleeve, threadedly connected with the fixing sleeve, and the torque adjusting seat abuts against the bottom of the inner cavity of the connecting sleeve; An insulating shell, sleeved on the driven rod, the outer surfaces of the fixing sleeve and the connecting sleeve.

2. The one-way torque-setting tool according to claim 1, wherein The insulating shell includes a rod-bearing shell and a body; The rod-bearing shell is sleeved on the outer surface of the connecting rod; The rod-bearing shell is sleeved on the outer surface of the contact sleeve; The rod-bearing shell is fixedly connected with the body.

3. The one-way fixed-torque tool according to claim 2, characterized in that, The connecting rod includes a connecting groove; The connecting groove is arranged at one end far from the connecting sleeve; The geometric shape of the cross-section of the connecting groove includes one of a triangle, a quadrilateral, a pentagon or a hexagon.

4. The one-way torque-setting tool according to claim 3, wherein, The insulating shell further includes a sealing gasket; The body is sleeved on the sealing gasket; The body is fixedly connected with the sealing gasket; The sealing gasket is arranged at one end far from the sliding sleeve; The sealing gasket is arranged close to the bottom end of the torque adjusting seat.

5. The one-way torque setting tool according to claim 4, characterized in that, The torque adjusting seat includes a base; The base includes a first split body and a second split body; The first split body and the second split body are fixedly connected; Both the first split body and the second split body are provided with through holes; The third sub-rod is arranged in the through holes; 6. The one-way fixed-torque tool according to claim 5, characterized in that, The first split body is provided with a first through hole; The third sub-rod is provided with a second through hole; The central axes of the first through hole and the second through hole coincide; A pin is arranged between the first through hole and the second through hole; 7. The one-way torque-limiting tool according to claim 6, characterized in that, The diameter of the first split body is less than the diameter of the second split body; The second split body is provided with a plurality of accommodating holes; Each of the accommodating holes is arranged in a circumferential array at equal intervals around the central axis of the second split body; Each of the accommodating holes is provided with a sliding bead; The diameter of the sliding bead is greater than the thickness of the second split body.

8. The one-way fixed-torque tool according to claim 7, wherein The torque adjusting seat further includes a sleeve seat; The sleeve seat is sleeved on the side wall of the first split body; The bottom of the sleeve seat is attached to the second split body; The second end of the spring abuts against the top of the sleeve seat.

9. The one-way torque-setting tool according to claim 8, characterized in that, The connecting sleeve includes a side ring plate and a bottom platform; The side ring plate and the bottom platform are fixedly connected; The side ring plate is sleeved on the outer surface of the sleeve seat; The bottom platform abuts against the sliding beads; A plurality of grooves are arranged at the end of the bottom platform; Each of the grooves is arranged in a circumferential pattern at equal intervals around the central axis of the second component.

10. The one-way torque-setting tool according to claim 9, characterized in that, One of the sliding beads is disposed in one of the grooves.

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