Torque mechanism for installing studs and installation method for studs

Abstract

This application provides a torque mechanism and a method for installing double-ended studs. The double-ended studs have external threads at both ends. The torque mechanism is used to install the double-ended studs onto a base. The torque mechanism includes a housing, a transmission component, and a guide assembly. The housing is hollow inside and has openings at both ends. The double-ended stud enters the housing through the opening at one end. The transmission component is rotatably disposed inside the housing, and the end of the transmission component away from the double-ended stud extends out of the housing through the opening at the other end. The guide assembly is sleeved on the outside of the transmission component and connected to it. The torque mechanism of this application guides the transmission component to press against and drive the double-ended stud to rotate synchronously, so that the double-ended stud is screwed into the base and accurately completes the preset torque requirement. During disassembly, the guide assembly guides the transmission component to release the torque and retract, avoiding thread seizing or causing the double-ended stud to move in the opposite direction.

Description

Technical Field

[0001] This application belongs to the field of assembly technology, and in particular relates to a torque mechanism for installing double-ended studs and a method for installing double-ended studs. Background Technology

[0002] Double-ended studs are key components in the aerospace field, connecting two critical sections. Therefore, there are strict torque requirements for the assembly of double-ended studs.

[0003] Due to the unique cylindrical structure of the double-ended stud, traditional torque wrenches cannot properly clamp the double-ended stud for rotation during installation and removal. However, the traditional inner and outer sleeve double-threaded structure, including an inner push rod and an outer sleeve, has an external thread on the inner push rod that engages with the internal thread on the inner wall of the outer sleeve. After the double-ended stud is screwed into one end of the outer sleeve, the inner push rod is screwed into the other end of the outer sleeve and tightened against the double-ended stud. As the inner push rod continues to rotate, the internal thread of the outer sleeve causes the contact surface between the inner push rod and the double-ended stud to rotate through friction, thereby achieving installation and removal.

[0004] However, in the traditional double-threaded inner and outer sleeve structure, after the inner push rod drives the double-ended stud to tighten and apply torque, when the outer sleeve is rotated in the opposite direction relative to the double-ended stud for disassembly, under a large torque, the reverse rotation will also cause the double-ended stud, which has already been torqued, to move slightly in the opposite direction, affecting the accuracy of the torque. Furthermore, the double-threaded inner and outer sleeve structure often experiences thread seizure, making it impossible to separate from the double-ended stud. The threads repeatedly bear large loads, greatly reducing the service life. Summary of the Invention

[0005] To address the shortcomings of related technologies, this application provides a torque mechanism and a method for installing double-ended studs. The mechanism guides the transmission component to press against and drive the double-ended studs to rotate synchronously, so that the double-ended studs are screwed into the base and accurately meet the preset torque requirements. During disassembly, the transmission component is guided by the guide component to remove the torque and retract, thus avoiding thread seizing or reverse micro-movement of the double-ended studs.

[0006] On one hand, this application provides a torque mechanism for installing a double-ended stud, wherein the double-ended stud has external threads at both ends, and the torque mechanism is used to install the double-ended stud onto a base. The torque mechanism includes:

[0007] The housing is hollow inside and has openings at both ends. The double-ended stud enters the housing through the opening at one end of the housing.

[0008] A transmission component, which is rotatably disposed within the housing, and the end of the transmission component away from the double-ended stud extends out of the housing through an opening at the other end of the housing;

[0009] A guide assembly is sleeved on and connected to the transmission member. The guide assembly is used to guide the transmission member to press against the double-ended stud when the transmission member rotates, thereby driving the double-ended stud to rotate relative to the base through the transmission member, so as to install the double-ended stud on the base and further apply torque.

[0010] In some embodiments, the guiding component further includes:

[0011] A guide sleeve is sleeved outside the transmission component, and the guide sleeve has a helical end face;

[0012] A rotating component, which is rotatably mounted on the transmission component, and abuts against the helical end face;

[0013] When the transmission component rotates about its axial direction, the rotating component rolls relative to the helical end face, thereby guiding the transmission component to press against the double-ended stud along its axial direction, and thus driving the double-ended stud to rotate synchronously.

[0014] In some embodiments, the transmission element further includes:

[0015] A rotating shaft is rotatably disposed within the housing.

[0016] The abutting part is located at one end of the rotating shaft near the double-ended stud;

[0017] A connecting part is provided on the rotating shaft part, and the axial direction of the connecting part is perpendicular to the axial direction of the rotating shaft part. The connecting part is used to rotatably connect with the rotating component.

[0018] In some embodiments, the transmission element further includes:

[0019] An extension portion is provided at the other end of the pivot portion relative to the abutment portion, and the extension portion is used to extend out of the housing and be detachably connected to a handle component.

[0020] In some embodiments, the torque mechanism further includes:

[0021] A ball bearing is rolled on the side wall of the abutment portion and abuts against the inner wall of the housing. The ball bearing assists the abutment portion in moving relative to the housing.

[0022] In some embodiments, the torque mechanism further includes:

[0023] A reset component is provided at one end of the transmission component near the double-ended stud, one end of the reset component abuts against the inner wall of the housing, and the other end of the reset component abuts against the transmission component.

[0024] In some embodiments, the torque mechanism further includes:

[0025] A limiting member is provided on the housing near the open end of the double-ended stud. The inner wall of the limiting member is provided with an internal thread, which engages with the external thread on the double-ended stud to prevent the double-ended stud from shifting during the rotation of the transmission component.

[0026] In some embodiments, the housing is provided with a first step and the guide sleeve is provided with a second step, the first step and the second step cooperating to restrict the axial movement of the guide sleeve along the transmission member.

[0027] In some embodiments, the housing further includes a first part and a second part, which are detachably connected by bolts and nuts.

[0028] On the other hand, a method for installing a double-ended stud is also provided, which uses a torque mechanism for installing the double-ended stud to install the stud onto a base and further applies torque. The torque mechanism includes a housing, a transmission component, and a guide assembly. The installation method includes:

[0029] Preparation steps: pre-screw one end of the double-ended stud into the base body, and screw the other end of the double-ended stud into the housing until it abuts against the transmission component;

[0030] During the installation process, when the transmission component rotates relative to the housing, the guide assembly guides the transmission component to press against and drive the double-ended stud to rotate synchronously until the double-ended stud is further screwed into the base and the preset torque requirement is met.

[0031] The disassembly step involves rotating the transmission component away from the stud in the opposite direction to that in the installation step, and removing the stud from the housing by rotating the housing in the opposite direction to that in the preparation step.

[0032] In summary, this application provides a torque mechanism and a method for installing double-ended studs. A guide assembly guides the transmission component to press against and drive the double-ended studs to rotate synchronously, allowing the studs to be screwed into the base and precisely meet the preset torque requirements. During disassembly, the guide assembly again guides the transmission component to release the torque and retract, preventing thread seizing or reverse micro-movement of the studs. The cooperation between the guide sleeve and the rotating component converts the rotational degree of freedom of the transmission component into a linear degree of freedom. A reset component automatically resets the transmission component, thereby improving assembly efficiency.

[0033] Other features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0034] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0035] Figure 1 This is a schematic diagram of the overall structure of the torque mechanism used in this application for installing double-ended studs;

[0036] Figure 2 The torque mechanism for installing double-ended studs as described in this application Figure 1 Schematic diagram of AA section;

[0037] Figure 3 This is an exploded view of the torque mechanism used in this application for installing a double-ended stud;

[0038] Figure 4 This is a schematic diagram of the guide sleeve for the torque mechanism used in this application to install a double-ended stud;

[0039] Figure 5 This is a schematic diagram of the transmission component of the torque mechanism used in this application for installing a double-ended stud;

[0040] Figure 6 This is a flowchart illustrating the installation method of the double-ended stud in this application.

[0041] In the picture:

[0042] 100. Housing; 200. Transmission component; 201. Rotating shaft; 202. Abutting part; 203. Connecting part; 204. Extension part; 300. Guide assembly; 301. Guide sleeve; 302. Rotating component; 400. Reset component; 500. Limiting component; 600. Double-ended stud; 700. Base. Detailed Implementation

[0043] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0044] In the description of this application, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0045] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Specific Implementation Example 1

[0048] Reference Appendix Figures 1 to 6 , Figure 1 This is a schematic diagram of the overall structure of the torque mechanism used in this application for installing the double-ended stud 600; Figure 2 This application pertains to the torque mechanism for mounting the double-ended stud 600. Figure 1 Schematic diagram of AA section; Figure 3 An exploded view of the torque mechanism used in this application for installing the double-ended stud 600;

[0049] Figure 4 This is a schematic diagram of the guide sleeve 301 of the torque mechanism used to install the double-ended stud 600 in this application;

[0050] Figure 5 This is a schematic diagram of the transmission component 200 of the torque mechanism used to install the double-ended stud 600 in this application;

[0051] Figure 6 This is a general flowchart of the installation method of the double-ended stud 600 of this application; the specific embodiments are described below with reference to the above-mentioned figures.

[0052] Reference Appendix Figures 1 to 3This application provides a torque mechanism for installing a double-ended stud 600. The double-ended stud 600 has external threads at both ends. The torque mechanism is used to install the double-ended stud 600 onto a base 700. The torque mechanism includes a housing 100, a transmission component 200, and a guide assembly 300. The housing 100 is hollow inside and has openings at both ends. The double-ended stud 600 enters the housing 100 through the opening at one end of the housing 100. The transmission component 200 is rotatably mounted on the housing 100. Within 00, and one end of the transmission member 200 away from the double-ended stud 600 extends out of the housing 100 through the opening at the other end of the housing 100. The guide assembly 300 is sleeved on the outside of the transmission member 200 and connected to it. The guide assembly 300 is used to guide the transmission member 200 to press against the double-ended stud 600 when the transmission member 200 rotates, thereby driving the double-ended stud 600 to rotate relative to the base 700 through the transmission member 200, so as to install the double-ended stud 600 on the base 700 and further apply torque.

[0053] It should be noted that the base 700 includes, but is not limited to, various mechanical parts that require the installation of double-ended studs 600.

[0054] Reference Appendix Figures 1 to 3 In some embodiments, the housing 100 is hollow inside and has openings at both ends. The double-ended stud 600 enters the housing 100 through the opening at one end of the housing 100. The housing 100 further includes a first part and a second part, which are detachably connected by bolts and nuts.

[0055] Specifically, the opening at one end of the housing 100 is used to accommodate the double-ended stud 600 and guide the double-ended stud 600 into the housing 100; the opening at the other end of the housing 100 is used to avoid the transmission component 200, so that one end of the transmission component 200 extends out of the housing 100, making it convenient for the operator to operate the transmission component 200 from outside the housing 100; the housing 100 further includes a first part and a second part, and the first part and the second part are also provided with corresponding lug structures. Bolts and nuts are used to connect the lug structures of the first part and the second part to assemble the housing 100. By disassembling the first part and the second part of the housing 100, the rotation of the housing 100 relative to the double-ended stud 600 is avoided, thereby ensuring that the double-ended stud 600 can be removed from the housing 100 without causing reverse micro-movement; in some embodiments, the housing 100 is fixed to a workbench by bolts, nuts and lug structures, which facilitates the operator to work on the workbench.

[0056] Reference Appendix Figure 2 and Figure 3In some embodiments, the guide assembly 300 is sleeved on and connected to the transmission member 200. The guide assembly 300 further includes a guide sleeve 301 and a rotating member 302. The guide sleeve 301 is sleeved on the transmission member 200 and has a helical end face. The rotating member 302 is rotatably mounted on the transmission member 200 and abuts against the helical end face. When the transmission member 200 rotates around its axial direction, the rotating member 302 rolls relative to the helical end face, thereby guiding the transmission member 200 to press against the double-ended stud 600 along its axial direction, thereby driving the double-ended stud 600 to rotate synchronously.

[0057] Specifically, the guide sleeve 301 has a through hole for accommodating the transmission component 200, allowing the transmission component 200 to rotate relative to the guide sleeve 301. The rotating component 302 is rotatably mounted on the transmission component 200 and abuts against the helical end face. The helical end face on the guide sleeve 301 is used to convert the rotational degree of freedom of the transmission component 200 into a linear degree of freedom by having the rotating component 302, which is rotatably connected to the transmission component 200, spirally roll and rise on the helical end face when the transmission component 200 rotates relative to the guide sleeve 301. This causes the transmission component 200 to press against the end face of the double-ended stud 600 during rotation, thereby causing the transmission component 200 to press against and drive the double-ended stud 600 to rotate.

[0058] Reference Appendix Figure 2 It should be noted that the initial position of the rotating component 302 rolling relative to the helical end face is located at the position furthest from the double-ended stud 600 on the helical end face. During the rotation of the transmission component 200, the rotating component 302 rolls from the initial position toward the position of the double-ended stud 600 on the helical end face, thereby pushing the transmission component 200 to press against the double-ended stud 600. In some embodiments, a certain rolling allowance is reserved on the helical end face. When the transmission component 200 drives the double-ended stud 600 to tighten and apply torque, the rotating component 302 is not located at the position closest to the double-ended stud 600 on the helical end face, so as to prevent the rotating component 302 from rolling out and detaching from the helical end face when a larger torque needs to be applied to the double-ended stud 600.

[0059] The twist rate of the helical end face refers to the rotation angle contained per unit length of the helix. It is a physical quantity that describes the degree of curvature of the helix. In practical applications, the twist rate of the helical end face should be set according to the actual situation. The larger the twist rate, the higher the curvature of the helix on the helical end face, and the lower the driving efficiency of the helical end face on the transmission component 200. The smaller the twist rate, the relatively straighter the helix on the helical end face, and the higher the driving efficiency of the helical end face on the transmission component 200.

[0060] Reference Appendix Figure 2 and Figure 3In some embodiments, the housing 100 is provided with a first step and the guide sleeve 301 is provided with a second step. The first step and the second step cooperate to restrict the axial movement of the guide sleeve 301 along the transmission member 200.

[0061] Specifically, the first step on the housing 100 is fitted over the second step on the guide sleeve 301 to restrict the axial movement of the guide sleeve 301 along the transmission member 200; and when the rotating member 302 pushes the guide sleeve 301 to press against the end face of the housing 100, the step surfaces of the first and second steps share the pressure on the end face of the housing 100, preventing the guide sleeve 301 from breaking the housing 100 when a large torque is applied; in some embodiments, the cooperation between the first and second steps is also used to prevent linear movement.

[0062] Reference Appendix Figure 2 , Figure 3 as well as Figure 5 In some embodiments, the transmission member 200 is rotatably disposed within the housing 100, and one end of the transmission member 200 away from the double-ended stud 600 extends out of the housing 100 through an opening at the other end of the housing 100; the transmission member 200 further includes a rotating shaft portion 201, an abutment portion 202, and a connecting portion 203. The rotating shaft portion 201 is rotatably disposed within the housing 100, the abutment portion 202 is disposed at one end of the rotating shaft portion 201 near the double-ended stud 600, and the connecting portion 203 is disposed on the rotating shaft portion 201. The axial direction of the connecting portion 203 is perpendicular to the axial direction of the rotating shaft portion 201, and the connecting portion 203 is used for rotatably connecting with the rotating member 302.

[0063] Specifically, the rotating shaft 201 is a cylindrical component, with its axial direction pointing towards the two end openings of the housing 100. The rotating shaft 201 is rotatably disposed within the housing 100 as the main body. The abutment portion 202 is fixedly disposed at one end of the rotating shaft 201 near the double-ended stud 600. In some embodiments, the cross-sectional area of ​​the abutment portion 202 is much larger than that of the rotating shaft 201, so that while the rotating shaft 201 provides power, it avoids contact and friction with the housing 100 and the guide sleeve 301, and at the same time increases the size of the abutment portion 202. The contact area with the end face of the double-ended stud 600 facilitates the rotation of the double-ended stud 600; the connecting part 203 is fixed on the side wall of the rotating shaft part 201, and the axial direction of the connecting part 203 is perpendicular to the axial direction of the rotating shaft part 201. The connecting part 203 is rotatably connected to the rotating member 302; in some embodiments, the rotating member 302 is a bearing, which includes an inner ring, an outer ring and rolling elements. The connecting part 203 is interference-fitted with the inner ring so that the outer ring rotates relative to the inner ring about the axis of the connecting part 203 through the rolling elements.

[0064] Reference Appendix Figure 5In some embodiments, the transmission member 200 further includes an extension 204, which is disposed at the other end of the pivot portion 201 relative to the abutment portion 202. The extension 204 is used to extend out of the housing 100 and be detachably connected to a handle member.

[0065] Specifically, the extension 204 is used to cooperate with the handle so that the operator can hold the handle outside the housing 100 to rotate the transmission component 200. The handle includes, but is not limited to, a wrench or a rotary drum. The shape of the extension 204 should be set according to the actual situation, including, but not limited to, a triangular prism, a square prism, a pentagonal prism, and a hexagonal prism.

[0066] Reference Appendix Figure 5 In some embodiments, the ball bearings are rolled on the side wall of the abutment portion 202 and abut against the inner wall of the housing 100. The ball bearings are used to assist the movement of the abutment portion 202 relative to the housing 100.

[0067] Specifically, multiple ball bearings are rolled between the abutment portion 202 and the inner wall of the housing 100. When the transmission member 200 moves linearly along its axis or rotates around its axis, the ball bearings are used to maintain the distance between the abutment portion 202 and the inner wall of the housing 100, and to change the sliding friction between the two into rolling friction, thereby assisting the abutment portion 202 in moving relative to the housing 100 and avoiding excessive friction that could cause jamming.

[0068] Reference Appendix Figure 2 and Figure 3 In some embodiments, the reset member 400 is disposed at one end of the transmission member 200 near the double-ended stud 600, one end of the reset member 400 abuts against the inner wall of the housing 100, and the other end of the reset member 400 abuts against the transmission member 200.

[0069] Specifically, the reset component 400 includes, but is not limited to, springs, compression springs, rubber, and spring sheets. The reset component 400 is used to store elastic potential energy when the transmission component 200 presses against the end face of the double-ended stud 600. When the torque mechanism needs to be removed, the elastic potential energy is released to drive the transmission component 200 and reset based on the guidance of the guide component 300. This prevents the transmission component 200 from rotating in the opposite direction when the torque mechanism is removed, further avoiding the situation where the double-ended stud 600 is driven to move in the opposite direction, and ensuring that the torque applied to the double-ended stud 600 is accurate.

[0070] Reference Appendix Figure 2 and Figure 3 In some embodiments, a limiting member 500 is provided on the housing 100 near the opening end of the double-ended stud 600. The inner wall of the limiting member 500 is provided with an internal thread, which engages with the external thread on the double-ended stud 600 to prevent the double-ended stud 600 from shifting during the rotation of the transmission member 200.

[0071] Specifically, the limiting member 500 is hollow inside and communicates with the opening of the housing 100. The inner wall of the limiting member 500 is provided with an internal thread, which engages with the external thread on the double-ended stud 600. Before applying torque, the double-ended stud 600 needs to be pre-screwed into the limiting member 500. The process of the transmission member 200 driving the double-ended stud 600 to rotate to apply torque is essentially the process of causing the double-ended stud 600 to unscrew out of the limiting member 500. During this process, the limiting member 500 prevents excessive torque from causing the double-ended stud 600 to deviate from the preset track. Specific Implementation Example 2

[0073] Reference Appendix Figure 6 This application also provides a method for installing a double-ended stud 600, which uses the torque mechanism for installing the double-ended stud 600 in the above-described specific embodiment to install and further apply torque. The method for installing the double-ended stud 600 includes a preparation step S1, an installation step S2, and a disassembly step S3.

[0074] In some embodiments, preparation step S1 includes pre-screwing one end of the double-ended stud 600 into the base 700 and screwing the other end of the double-ended stud 600 into the housing 100 until it abuts against the transmission member 200.

[0075] Specifically, the two ends of the double-ended stud 600 are pre-tightened into the base 700 and the housing 100, respectively. Since this step does not require applying excessive torque to the double-ended stud 600, the operator can manually pre-tighten it until resistance is encountered.

[0076] It should be noted that, since the opening of the housing 100 is an open end, when the double-ended stud 600 is pre-screwed into the housing 100, it encounters resistance and comes into contact with the transmission component 200 inside the housing 100.

[0077] In some embodiments, the installation step S2 includes, when the transmission member 200 is rotated relative to the housing 100, the transmission member 200 is guided by the guide component 300 to press against and drive the double-ended stud 600 to rotate synchronously until the double-ended stud 600 is further screwed into the base 700 and the preset torque requirement is met.

[0078] Specifically, the operator rotates the transmission component 200 to make the rotating component 302, which is rotatably mounted on the transmission component 200, roll relative to the helical end face on the guide sleeve 301. This causes the transmission component 200 to rotate around its axial direction while simultaneously pressing against the end face of the double-ended stud 600 along its axial direction, achieving the purpose of the transmission component 200 driving the double-ended stud 600 to move synchronously until the double-ended stud 600 is screwed into the base 700 and the preset torque requirement is met.

[0079] In some embodiments, disassembly step S3 includes rotating the transmission member 200 in the opposite direction of rotation in installation step S2 to move the transmission member 200 away from the stud 600, and rotating the housing 100 in the opposite direction of preparation step S1 to remove the stud 600 from the housing 100.

[0080] Specifically, the reset member 400 releases elastic potential energy to drive the transmission member 200 to rotate in the opposite direction of rotation in the installation step S2. During this period, the rotating member 302 is guided to roll by the helical end face, so that the transmission member 200 rotates around its axis while also moving away from the end face of the double-ended stud 600 along its axis. Since the process of applying torque to the double-ended stud 600 is essentially the process of making it unscrew out of the housing 100, after applying torque, the stroke of the housing 100 rotating in the opposite direction of the double-ended stud 600 in the preparation step S1 is relatively short. During this period, the reverse micro-movement of the double-ended stud 600 can be ignored.

[0081] In some embodiments, disassembly step S3 includes rotating the transmission member 200 in the opposite rotation direction to that in installation step S2 to move the transmission member 200 away from the stud 600, and separating the first part and the second part of the housing 100 to avoid rotating the housing 100 relative to the stud 600, thereby ensuring that the stud 600 is removed from the housing 100 without causing reverse micro-movement.

[0082] This application provides a torque mechanism and a method for installing a double-ended stud 600. A guide assembly 300 guides the transmission component 200 to press against and drive the double-ended stud 600 to rotate synchronously, so that the double-ended stud 600 is screwed into the base 700 and precisely meets the preset torque requirements. During disassembly, the guide assembly 300 again guides the transmission component 200 to release the torque and retract, preventing thread seizing or reverse micro-movement of the double-ended stud 600. The guide sleeve 301, in cooperation with the rotating component 302, converts the rotational degree of freedom of the transmission component 200 into a linear degree of freedom. A reset component 400 automatically resets the transmission component 200, thereby improving assembly efficiency.

[0083] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0084] The above embodiments are only used to illustrate the technical solutions of this application and not to limit them; although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this application or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of this application, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in this application.

Claims

1. A torque mechanism for installing a double-ended stud, wherein the double-ended stud has external threads at both ends, and the torque mechanism is used to install the double-ended stud onto a base, characterized in that, The torque mechanism includes: The housing is hollow inside and has openings at both ends. The double-ended stud enters the housing through the opening at one end of the housing. A transmission component, which is rotatably disposed within the housing, and the end of the transmission component away from the double-ended stud extends out of the housing through an opening at the other end of the housing; A guide assembly is sleeved on and connected to the transmission member. The guide assembly is used to guide the transmission member to press against the double-ended stud when the transmission member rotates, thereby driving the double-ended stud to rotate relative to the base through the transmission member, so as to install the double-ended stud on the base and further apply torque. The guiding component further includes: A guide sleeve is sleeved outside the transmission component, and the guide sleeve has a helical end face; A rotating component, which is rotatably mounted on the transmission component, and abuts against the helical end face; When the transmission component rotates about its axial direction, the rotating component rolls relative to the helical end face, thereby guiding the transmission component to press against the double-ended stud along its axial direction, and thus driving the double-ended stud to rotate synchronously. The transmission component further includes: A rotating shaft is rotatably disposed within the housing. The abutting part is located at one end of the rotating shaft near the double-ended stud; A connecting part is provided on the rotating shaft part, and the axial direction of the connecting part is perpendicular to the axial direction of the rotating shaft part. The connecting part is used to rotatably connect with the rotating component.

2. The torque mechanism for installing double-ended studs according to claim 1, characterized in that, The transmission component also includes: An extension portion is provided at the other end of the pivot portion relative to the abutment portion, and the extension portion is used to extend out of the housing and be detachably connected to a handle component.

3. The torque mechanism for installing a double-ended stud according to claim 1, characterized in that, Also includes: A ball bearing is rolled on the side wall of the abutment portion and abuts against the inner wall of the housing. The ball bearing assists the abutment portion in moving relative to the housing.

4. The torque mechanism for installing a double-ended stud according to claim 1, characterized in that, Also includes: A reset component is provided at one end of the transmission component near the double-ended stud, one end of the reset component abuts against the inner wall of the housing, and the other end of the reset component abuts against the transmission component.

5. The torque mechanism for installing a double-ended stud according to claim 1, characterized in that, Also includes: A limiting member is provided on the housing near the open end of the double-ended stud. The inner wall of the limiting member is provided with an internal thread, which engages with the external thread on the double-ended stud to prevent the double-ended stud from shifting during the rotation of the transmission component.

6. The torque mechanism for installing a double-ended stud according to claim 1, characterized in that, The housing is provided with a first step, and the guide sleeve is provided with a second step. The first step and the second step cooperate to restrict the axial movement of the guide sleeve along the transmission component.

7. The torque mechanism for installing a double-ended stud according to claim 1, characterized in that, The housing further includes a first part and a second part, which are detachably connected by bolts and nuts.

8. A method for installing a double-ended stud, comprising using the torque mechanism for installing double-ended studs as described in any one of claims 1 to 7, characterized in that, The installation method includes: Preparation steps: pre-screw one end of the double-ended stud into the base body, and screw the other end of the double-ended stud into the housing until it abuts against the transmission component; During the installation process, when the transmission component rotates relative to the housing, the guide assembly guides the transmission component to press against and drive the double-ended stud to rotate synchronously until the double-ended stud is further screwed into the base and the preset torque requirement is met. The disassembly step involves rotating the transmission component away from the stud in the opposite direction to that in the installation step, and removing the stud from the housing by rotating the housing in the opposite direction to that in the preparation step.

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