Assembly tool for extension spring accessories
Through the spring locking assembly and the opening assembly in the bearing seat, the danger and difficulty of the tensile spring assembly process is solved, and a safe and labor-saving assembly operation is achieved, which avoids paint damage and improves spring performance.
Patent Information
- Application Number
- CN202421951646.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-13
AI Technical Summary
In the prior art, the assembly process of tensile springs is dangerous and difficult, and it is easy to damage the paint surface and affect the performance of the spring.
The spring locking assembly and the opening assembly in the bearing seat are adopted. The end of the tension spring is driven to move to the opening direction by the rotating spring lock assembly, and the opening pitch is used to install the accessories, simplifying the operation process.
It realizes safe, time-saving and labor-saving tensile spring assembly, avoids paint damage, and improves assembly efficiency and spring performance stability.
Smart Images
Figure CN223155855U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of high-voltage switch circuit breakers, and particularly to an assembly tool for a tension spring fitting. Background Art
[0002] As an important part of a high-voltage switch circuit breaker, a spring operating mechanism mainly provides power for the high-voltage switch circuit breaker. When a tension spring is used in the spring operating mechanism, as shown in Figure 5 the figure, it is necessary to assemble a hanging plate 502 and a pull plate 503 on both sides of the tension spring 501 respectively before use. The current method for spring assembly is to hold one end of the tension spring 501 fixed by leaning against it with the body, use a flat-tip screwdriver to spread open the other end of the tension spring 501 and insert it into the hanging plate 502, and finally use a hammer to strike the side of the hanging plate 502 and cooperate with the flat-tip screwdriver to complete the assembly. Since the spring wire diameter of the spring operating mechanism is relatively large, this assembly method is very dangerous, and there are certain difficulties and skills in the assembly process; the hammering method will cause damage to the painted surfaces of the hanging plate 502 and the pull plate 503 and the sprayed plastic surface of the tension spring 501, which will further cause rusting and affect the performance of the tension spring 501 in the later stage. Utility Model Content
[0003] In order to solve the problems in the related art, an embodiment of the present disclosure provides an assembly tool for a tension spring fitting.
[0004] The assembly tool for a tension spring fitting provided in an embodiment of the present disclosure includes:
[0005] A bearing seat;
[0006] A spring locking assembly, movably disposed in the bearing seat, for locking a tension spring along the axial direction of the bearing seat;
[0007] A spreading assembly, disposed at an opening on one side of the bearing seat; the spreading assembly includes a spreading member, which is disposed perpendicular to the axial direction of the bearing seat and can spread open the end of the tension spring.
[0008] According to an embodiment of the present disclosure, the spring locking assembly includes: a cylinder body, a pressing plate, and a rotating handle; the pressing plate is disposed inside the cylinder body, a through hole is provided on the cylinder body, and the end of the rotating handle passes through the through hole and contacts the pressing plate, and can push the pressing plate to lock the tension spring placed inside the cylinder body.
[0009] According to an embodiment of the present disclosure, a slot hole is provided on the cylinder body, the pressing plate is fixedly connected to a limiting member, and the limiting member is limited at the slot hole.
[0010] According to an embodiment of the present disclosure, the cylinder body is composed of a semi-cylinder body with a first wall thickness and a semi-cylinder body with a second wall thickness; the pressing plate is arc-shaped and is located on one side of the semi-cylinder body with the second wall thickness; wherein, the second wall thickness is less than the first wall thickness.
[0011] According to an embodiment of the present disclosure, there is a preset distance between the end face of the pressing plate and the end face of the semi-cylinder body with the first wall thickness; wherein, the preset distance is greater than the maximum width of the fitting.
[0012] According to an embodiment of the present disclosure, the expanding component further includes a fixing plate and a rotating component; the expanding member is fixed to the bottom of the fixing plate; the rotating component is arranged on one side of the fixing plate and is fixed to the bearing seat.
[0013] According to an embodiment of the present disclosure, the expanding component further includes a screw rod, which is arranged on the other side of the fixing plate.
[0014] According to an embodiment of the present disclosure, a limiting hole is provided on the fixing plate, and correspondingly, a limiting shaft adapted to the limiting hole is also provided on the bearing seat.
[0015] According to an embodiment of the present disclosure, the expanding member is an open screw rod; a nut for preventing the open screw rod from loosening is further provided on the open screw rod.
[0016] According to an embodiment of the present disclosure, the number of the expanding components is two, and the two expanding members are arranged oppositely.
[0017] An assembly tool for a tension spring fitting according to an embodiment of the present disclosure includes: a bearing seat; a spring locking component, movably arranged in the bearing seat for locking a tension spring along the axial direction of the bearing seat; an expanding component, arranged at an opening on one side of the bearing seat; the expanding component includes an expanding member, which is arranged perpendicular to the axial direction of the bearing seat and can expand the end of the tension spring. In the above technical solution, the tension spring is locked by the spring locking component, then the spring locking component is rotated in the bearing seat to drive the end of the tension spring to move towards the expanding member, and then the expanding member is used to expand the pitch enough for the fitting to enter the tension spring and then the fitting is installed. The operation process is simple, time-saving and labor-saving.
[0018] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. Description of the Drawings
[0019] Figure 1 The front view of an assembly tool for a tension spring fitting according to an embodiment of the present disclosure is shown.
[0020] Figure 2Shows a schematic structural diagram of a bearing housing according to an embodiment of the present disclosure, where the left part is a front view and the right part is a cross-sectional view along the A-A direction.
[0021] Figure 3 Shows a schematic structural diagram of a spring locking assembly according to an embodiment of the present disclosure, where the left part is a front view and the right part is a right view.
[0022] Figure 4 Shows a schematic diagram of an expansion assembly assembled on a bearing housing according to an embodiment of the present disclosure, where the left part is a front view and the right part is a cross-sectional view along the B-B direction.
[0023] Figure 5 Shows a schematic assembly diagram of the fittings of a tension spring according to an embodiment of the present disclosure. Detailed implementation manners
[0024] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the drawings so that those skilled in the art can easily implement them. In addition, for clarity, parts irrelevant to the description of the exemplary embodiments are omitted in the drawings.
[0025] In the present disclosure, it should be understood that terms such as "including" or "having" are intended to indicate the presence of features, numbers, steps, actions, components, parts, or combinations thereof disclosed in this specification, and do not intend to exclude the possibility of the presence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.
[0026] In addition, it should be noted that, without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. The present disclosure will be described in detail below with reference to the drawings and in combination with the embodiments.
[0027] As an important part of a high-voltage switch circuit breaker, the spring operating mechanism mainly provides power for the high-voltage switch circuit breaker. When the spring of the spring operating mechanism is a tension spring, as Figure 5 shown, it is necessary to assemble a hanging plate 502 and a pulling plate 503 on both sides of the tension spring 501 respectively for use. Currently, the method for spring assembly is to hold one end of the tension spring 501 fixed by leaning against it with the body, use a flat-tip screwdriver to expand the other end of the tension spring 501 and install it into the hanging plate 502, and finally use a hammer to strike the side of the hanging plate 502 and cooperate with the flat-tip screwdriver to complete the assembly. Since the spring wire diameter of the spring operating mechanism is relatively large, this assembly method is very dangerous, and there are certain difficulties and skills in the assembly process; the hammering method will cause damage to the painted surfaces of the hanging plate 502 and the pulling plate 503 and the sprayed surface of the tension spring 501, thereby causing rust and affecting the performance of the tension spring 501 in the later stage.
[0028] In view of the above defects, the embodiments of the present disclosure provide an assembly tooling for a tension spring fitting. The tension spring is locked by a spring locking component, and then the spring locking component is rotated in the bearing seat to drive the end of the tension spring to move towards the spreading component. Then, the spreading component is used to spread the pitch of the tension spring enough for the fitting to enter and be installed. The operation process is simple, time-saving and labor-saving.
[0029] As Figures 1 to 4 shown, the assembly tooling for the tension spring fitting includes: a bearing seat 1, a spring locking component 2 and a spreading component 3. The spring locking component 2 is movably arranged in the bearing seat 1 and is used to lock the tension spring along the axis direction of the bearing seat 1; the spreading component 3 is arranged at one side opening of the bearing seat 1; the spreading component 3 includes a spreading piece 31, which is arranged perpendicular to the axis direction of the bearing seat 1 and can spread the end of the tension spring. In the present disclosure, the bearing seat provides the function of rotating support for the spring locking component, the spring locking component provides the functions of fixing and rotating for the tension spring to be assembled, and the spreading component provides the functions of opening and exiting the pitch of the tension spring.
[0030] Please refer to Figure 2 , two bearings 11 are installed inside the bearing seat 1, and a retaining plate 12 is installed outside the bearings 11 and fixed in the bearing seat 1 by bolts 13. Among them, the number of bearings 11 is 2, which are respectively located at positions close to both side openings of the bearing seat.
[0031] Please refer to Figure 3 , the spring locking component 2 includes: a cylinder body 21, a pressing plate 22 and a rotating handle 23; the pressing plate 22 is built in the cylinder body 21, a through hole is arranged on the cylinder body 21, and the end of the rotating handle 23 passes through the through hole and contacts the pressing plate 22, and can push the pressing plate 22 to lock the tension spring placed in the cylinder body 21. Specifically, the rotating handle 23 can be a T-shaped screw rod and is threadedly connected with the cylinder body 21. After the tension spring is placed in the cylinder body, the pressing plate is abutted against the tension spring by screwing in the rotating handle, so as to lock the tension spring. After the tension spring is locked, the cylinder body can be rotated in the bearing seat by rotating the rotating handle, and then the tension spring is driven to rotate forward, so that the end of the tension spring moves towards the spreading piece. By installing bearings inside the bearing seat, the friction between the cylinder body and the bearing seat can be reduced, which is convenient for the rotation and forward movement of the cylinder body.
[0032] In the present disclosure, a long screw rod 24 is also arranged on the cylinder body 21, the long screw rod 24 is threadedly connected with the cylinder body 21 and is located on the opposite side of the rotating handle 23. When rotating the cylinder body, the T-shaped screw rod and the long screw rod can be held by both hands respectively, so as to facilitate the rotation of the cylinder body.
[0033] According to an embodiment of the present disclosure, a slot 25 is provided on the cylinder 21, the pressing plate 22 is fixedly connected to a stopper 26, and the stopper 26 is stoppered at the slot 25. In the disclosed method, the stopper may be a bolt. By providing the stopper, it is convenient to lift the pressing plate, thereby facilitating the placement of the tension spring into the cylinder. In addition, the stopper is blocked by the slot, which can also prevent the pressing plate and the stopper from falling out of the cylinder due to the lack of external force.
[0034] According to an embodiment of the present disclosure, the cylinder 21 is composed of a half cylinder with a first wall thickness and a half cylinder with a second wall thickness; the pressure plate 22 is arc-shaped and is located on one side of the half cylinder with the second wall thickness; wherein the second wall thickness is less than the first wall thickness. By forming the cylinder with two half cylinders with two wall thicknesses and placing the arc-shaped pressure plate on one side of the half cylinder with a thinner thickness, the arc-shaped pressure plate and the thicker half cylinder are used to clamp the tension spring, which fits better with the surface of the tension spring, and the pressure plate can be locked more firmly.
[0035] According to an embodiment of the present disclosure, there is a preset distance between the end surface of the pressing plate 22 and the end surface of the semi-cylinder of the first wall thickness; wherein the preset distance is greater than the maximum width of the accessory, so that when the accessory is assembled on the tension spring and the tension spring is removed after the pressing plate is released, the accessory can also be removed from the space between the end surface of the pressing plate and the end surface of the semi-cylinder of the first wall thickness. The accessory in the present disclosure can be as follows: Figure 5 The hanging plate 502 and the pulling plate 503 shown may also be other accessories, and the present disclosure does not limit this.
[0036] Please refer to Figure 4 The spreading component 3 further includes a fixed plate 32 and a rotating component, the rotating component includes a bearing 33 and a rotating shaft 34 sleeved on the bearing 33; the spreading member 31 is fixed to the bottom of the fixed plate 32. The rotating component is arranged on one side of the fixed plate and fixed on the bearing seat 1. Specifically, the fixed plate 32 is fixed to the bearing seat by the bearing 33 and the rotating shaft 34, so that the fixed plate can rotate around the rotating shaft.
[0037] According to an embodiment of the present disclosure, the spreading assembly 3 further includes a screw rod 35, which is disposed on the other side of the fixing plate 32. The fixing plate can be driven to rotate around the rotation axis by operating the screw rod.
[0038] According to the embodiment of the present disclosure, a limiting hole (not shown in the figure) is provided on the fixing plate 32, and correspondingly, a limiting shaft 36 adapted to the limiting hole is also provided on the bearing seat 1. Through the cooperation of the limiting shaft and the limiting hole on the fixing plate, the position of the spreader can be controlled so that it is arranged perpendicular to the axial direction of the bearing seat, so that when the tension spring is rotated forward along the axial direction, it can be ensured that the end of the tension spring is close to and in contact with the spreader, and the tension spring is continued to be rotated, so that the spreader can be used to spread the pitch sufficient for the accessory to enter the tension spring and then install the accessory, saving time and effort.
[0039] According to an embodiment of the present disclosure, the stretching member 31 is an open screw; a nut 37 is also provided on the open screw to prevent the open screw from loosening. By providing the nut, the open screw can be pressed against the fixing plate to prevent loosening. In the disclosed method, the cross-section of the open screw is a teardrop shape, or other shapes that change from narrow to wide, so that when stretching the end of the tension spring, it enters from the narrower side and gradually stretches the pitch of the tension spring, which is more labor-saving.
[0040] According to an embodiment of the present disclosure, the number of the spreading components 3 is two, and the two spreading components are arranged opposite to each other.
[0041] by Figure 5 Taking the hanging plate 502 as an example, the assembly of the hanging plate 502 requires the extension spring to pass through two through holes therein, so by setting the number of the opening components 3 to two, and the two opening components are arranged oppositely, each opening component can be used to operate the extension spring to enter a through hole. Specifically, the opening component at the top opens the end of the extension spring, and then the rotating cylinder drives the extension spring forward to enter one through hole of the hanging plate 502. When the extension spring rotates 180°, the opening component at the bottom begins to enter the end of the extension spring, and then the rotating cylinder drives the extension spring forward to enter another through hole of the hanging plate 502.
[0042] The operating method of the assembly tool of the tension spring accessory provided by the present invention is as follows: the tension spring to be assembled is placed between the cylinder and the pressure plate, and the T-screw is tightened so that the pressure plate and the cylinder press the tension spring; the fixed plate is clamped at the limit axis, and the T-screw and the long screw are rotated to drive the tension spring to rotate; the end of the tension spring is screwed into the open screw, and after the pitch is stretched enough for the hanging plate to enter the tension spring, it is started to be installed into the first hole of the hanging plate, and the entry of the subsequent holes of the hanging plate is completed as the T-screw and the long screw are rotated. After the hanging plate is assembled in place, the fixed plate is rotated counterclockwise around the rotation axis to make the open screw withdraw from the tension spring, and the T-screw is loosened to take out the tension spring to complete the assembly of the hanging plate; the pull plate on the other side is assembled in the same way.
[0043] The above description is only a preferred embodiment of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) disclosed in the present disclosure that have similar functions.
Claims
1. An assembly tool for a tension spring fitting, characterized in that, include: Bearing seat; A spring locking assembly, movably disposed in the bearing seat, and used to lock the tension spring along the axial direction of the bearing seat; The expansion assembly is arranged at an opening on one side of the bearing seat; the expansion assembly includes an expansion piece, which is arranged perpendicular to the axial direction of the bearing seat and can expand the end of the tension spring.
2. The assembling tooling for the tension spring fitting according to claim 1, characterized in that The spring locking assembly includes: a cylinder, a pressure plate and a rotating handle; the pressure plate is built into the cylinder, a through hole is provided on the cylinder, the end of the rotating handle passes through the through hole to contact the pressure plate, and can push the pressure plate to lock the tension spring placed in the cylinder.
3. The assembly tooling for the tension spring fitting according to claim 2, characterized in that, The cylinder body is provided with a slot hole, the pressing plate is fixedly connected to a limiting member, and the limiting member is limited at the slot hole.
4. The assembly tooling for the tension spring fitting according to claim 2, characterized in that, The cylinder is composed of a half cylinder with a first wall thickness and a half cylinder with a second wall thickness; the pressure plate is arc-shaped and is located on one side of the half cylinder with the second wall thickness; wherein the second wall thickness is smaller than the first wall thickness.
5. The assembly tooling for the tension spring fitting according to claim 4, characterized in that, There is a preset distance between the end surface of the pressing plate and the end surface of the semi-cylinder with the first wall thickness; wherein the preset distance is greater than the maximum width of the accessory.
6. The assembly tooling for the tension spring fitting according to claim 1, characterized in that, The expansion component also includes a fixed plate and a rotating component; the expansion member is fixed to the bottom of the fixed plate; the rotating component is arranged on one side of the fixed plate and fixed on the bearing seat.
7. The assembly tooling for the tension spring fitting according to claim 6, characterized in that, The expansion assembly further includes a screw rod, which is arranged on the other side of the fixing plate.
8. The assembly tooling for the tension spring fitting according to claim 6, characterized in that, The fixing plate is provided with a limiting hole, and correspondingly, the bearing seat is also provided with a limiting shaft adapted to the limiting hole.
9. The assembly tooling for the tension spring fitting according to claim 6, characterized in that, The spreading member is an open screw rod; a nut is also provided on the open screw rod to prevent the open screw rod from loosening.
10. The assembly tooling for the tension spring fitting according to claim 1, characterized in that, The number of the spreading components is two, and the two spreading components are arranged opposite to each other.