Take-up mechanism and hybrid bridging device

Abstract

The utility model relates to the technical field of bridging devices, in particular to a take-up mechanism and a hybrid bridging device, which comprise a take-up unit, the take-up unit comprises a first shell, a second shell, a contraction assembly, a transmission assembly and a telescopic unit, the transmission assembly is movably connected with the telescopic unit, and the second shell is movably connected with the telescopic unit. The telescopic unit comprises a lantern ring, a wire assembly, a chassis and a jumper, the first shell is arranged in the jumper, and the jumper comprises a mechanical jumper, an active electronic jumper and a passive electronic jumper. The beneficial effects of the utility model are that the jumper wire is arranged on the scroll connector, when the jumper wire is pulled outwards, the scroll spring is driven to extend outwards, the driving gear arranged on the first shell is engaged with the scroll spring to rotate and drives the transmission gear to rotate, and when the transmission gear rotates, the lantern ring sleeved on the rotating shaft moves up and down, so that the transmission gear is driven to rotate. Therefore, the inclined arc block is contracted inwards, the jumper wire accommodating space is increased, and the jumper wire is prevented from being exposed outside.

Description

Technical Field

[0001] The utility model relates to the technical field of jumpers, in particular to a wire-taking mechanism and a hybrid jumper device. Background Art

[0002] The generator excitation system is a general term for the power supply and its ancillary equipment that supplies the excitation current to the synchronous generator. It generally consists of two main parts: the excitation power unit and the excitation regulator. The circuit connection inside the excitation cabinet is complex, and jumpers are required when connecting the internal circuits.

[0003] The hybrid jumper greatly improves the reliability of demagnetization of the excitation system. It is simple and safe to operate, and can provide a demagnetization system jumper solution for large-capacity generator sets. It can minimize the risk of generator set demagnetization accidents caused by demagnetization circuit failures. When the mechanical jumper in the hybrid jumper is connected to the jumper wire, due to the different lengths of the jumper wires, after connection, it is easy for excess length to be exposed outside the jumper, making the jumper more messy, affecting the wiring, and not safe enough. At the same time, when the jumper wires are connected and used, short circuits and fires may occur during the application process, making the jumper unsafe. Utility Model Content

[0004] In view of the above-mentioned technical problem that when a jumper wire is connected across machines, the jumper wire is exposed outside the jumper and is not safe enough, the present utility model is proposed.

[0005] The utility model aims to provide a wire-reeling mechanism, which aims to solve the problem of preventing the jumper wires from being exposed and causing danger.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a wire-taking mechanism, which includes a wire-taking unit, the wire-taking unit includes a first shell, a second shell, a retraction assembly and a transmission assembly, the retraction assembly is arranged in the accommodating space constructed by the first shell and the second shell, the retraction assembly is meshed and connected with the transmission assembly, the telescopic unit, the transmission assembly is movably connected with the telescopic unit, the telescopic unit includes a ring, a wire assembly and a chassis, the chassis is arranged on the transmission assembly, the ring is sleeved on the transmission assembly, the wire assembly is movably connected to the ring, and the wire assembly is slidably connected to the chassis.

[0007] As a preferred solution of the wire-winding mechanism of the present invention, the first shell includes a base and a ring body, the ring body is arranged on the base, the ring body includes a positioning hole and an opening, the opening is arranged on the ring body, and the positioning hole is arranged on the top side of the ring body.

[0008] As a preferred solution of the winding mechanism of the present invention, the retraction component includes a main shaft and a spiral spring, one end of the spiral spring is fixed on the main shaft, the other end of the spiral spring is connected to the jumper wire on the spiral connector, and the side wall of the spiral spring is provided with a groove.

[0009] As a preferred solution of the wire-taking mechanism of the present invention, the transmission assembly includes a driving gear and a transmission gear, the driving gear is arranged on the first shell, the driving gear is meshed with the transmission gear, and the transmission gear is movably connected to the second shell.

[0010] As a preferred solution of the wire-winding mechanism of the present invention, wherein: the driving gear includes a first gear, a connecting shaft and a second gear, the first gear is provided at one end of the connecting shaft, the second gear is provided at the other end of the connecting shaft, and the first gear is meshed and connected with the groove; the transmission gear includes a third gear and a rotating shaft, the third gear is meshed and connected with the second gear, the rotating shaft is provided on one side of the third gear, a limiting block is provided at the top end of the rotating shaft, a sliding groove is provided on one side of the limiting block, and a limiting groove is provided on one side of the sliding groove.

[0011] As a preferred solution of the wire-taking mechanism of the present invention, the collar includes symmetrically arranged connecting platforms and a convex shaft arranged on the inner side wall of the collar, and the convex shaft is slidably connected to the limiting groove.

[0012] As a preferred solution of the wire-taking mechanism of the present invention, the wire assembly includes a connecting rod, a connecting plate and an oblique arc block, the connecting rod is hingedly connected to the connecting platform, the connecting rod is hingedly connected to the connecting plate, and the connecting plate is hingedly connected to the oblique arc block.

[0013] As a preferred solution of the wire-taking mechanism of the present invention, the connecting plate includes a connecting block, which is arranged on the bottom side of the connecting plate; the oblique arc block includes a receiving groove, which is arranged on the arc-shaped surface of the oblique arc block.

[0014] This is a preferred solution of the wire-taking mechanism of the present invention, wherein: the chassis is arranged on the limiting groove, and the chassis is symmetrically provided with sliding grooves, and the sliding grooves are slidably connected to the connecting block.

[0015] The beneficial effects of the wire-winding mechanism of the present invention are as follows: the jumper wire is arranged on the scroll connector, and when the jumper wire is pulled outward, the scroll spring is driven to extend outward, and the driving gear arranged on the first shell engages and rotates with the scroll spring, and drives the transmission gear to rotate. When the transmission gear rotates, the collar connected to the rotating shaft moves up and down, thereby causing the oblique arc block to shrink inward, increasing the jumper wire accommodating space, and preventing the jumper wire from being exposed to the outside, thereby increasing the risk.

[0016] Another object of the present invention is to provide a hybrid jumper device, which aims to solve the reliability problem of demagnetization of the excitation system.

[0017] In order to solve the above technical problems, the present invention also provides the following technical solutions: a hybrid jumper device, which includes a wire-reeling mechanism; and a jumper, wherein the first shell is arranged in the jumper, and the jumper includes a first cylinder and a second cylinder, and the first cylinder and the second cylinder are connected by a connector.

[0018] The beneficial effects of the hybrid jumper device of the utility model are: it covers the working mode of multi-level jumper access, including mechanical jumper, active trigger electronic jumper, passive trigger electronic jumper, and mechanical jumper. Compared with the jumper solution of single principle, the reliability of demagnetization of the excitation system is greatly improved. It is simple and safe to operate, and can provide a demagnetization system jumper solution for large-capacity generator sets, which can minimize the risk of demagnetization accidents of generator sets caused by demagnetization circuit failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0020] Figure 1 This is a structural diagram showing the wire-taking mechanism in the present invention.

[0021] Figure 2 It is a cross-sectional view of the wire-taking mechanism in the present invention.

[0022] Figure 3 This is a structural diagram showing the first shell, retraction assembly and transmission assembly in the present utility model.

[0023] Figure 4 This is a partial enlarged view of the first shell and the retraction assembly in the present invention.

[0024] Figure 5 This is a diagram showing the ring, wire assembly and chassis structure in the utility model.

[0025] Figure 6 This is a partial cross-sectional view of the wire assembly in the present invention.

[0026] Figure 7 This is a diagram showing the structure of the hybrid jumper in the present utility model. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it designate a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1

[0031] Reference Figure 1 , which is the first embodiment of the present utility model, provides a wire-taking mechanism, including a wire-taking unit 100 and a contraction unit 200, wherein the wire-taking unit 100 is movably connected to the contraction unit 200.

[0032] Preferably, the wire taking-up unit 100 includes a first shell 101, a second shell 102, a retraction assembly 103 and a transmission assembly 104. The retraction assembly 103 is arranged in the accommodating space constructed by the first shell 101 and the second shell 102. The retraction assembly 103 is used to reset the jumper wire after it is pulled out. The retraction assembly 103 is engaged and connected with the transmission assembly 104. The transmission assembly 104 is movably connected with the ring 201, and causes the ring 201 to move up and down when rotated.

[0033] Preferably, the telescopic unit 200 includes a ring 201, a wire assembly 202 and a chassis 203. The chassis 203 is arranged on the transmission assembly 104. The ring 201 is sleeved on the transmission assembly 104. The wire assembly 202 is movably connected to the ring 201. The wire assembly 202 can be retracted or extended. The wire assembly 202 is slidably connected to the chassis 203.

[0034] During use, the jumper wire is connected to the retraction component 103. When the jumper wire is pulled out, the retraction component 103 is engaged with the transmission component 104, and the transmission component 104 rotates accordingly. The ring 201 is sleeved on the transmission component 104, and the ring 201 moves upward during rotation. The wire assembly 202 is movably connected to the ring 201, and the ring 201 drives the wire assembly 202 upward to retract inward, thereby increasing the space for accommodating the jumper wire, preventing the jumper wire from being exposed to the outside and causing risks.

[0035] Example 2

[0036] Reference Figures 1 to 6 , which is the second embodiment of the present utility model. Different from the previous embodiment, it further includes a first shell 101 including a base 101a and a ring body 101b. The ring body 101b is arranged on the base 101a. The ring body 101b and the second shell 102 form a hollow accommodating space. The ring body 101b includes a positioning hole 101b-1 and an opening 101b-2. The opening 101b-2 is arranged on the ring body 101b for the expansion and contraction of the spiral spring 103b. The positioning hole 101b-1 is arranged on the top side of the ring body 101b. The positioning hole 101b-1 is used to set the first gear 104a-1.

[0037] Preferably, the contraction assembly 103 includes a main shaft 103a and a scroll spring 103b, one end of the scroll spring 103b is fixed on the main shaft 103a, the main shaft 103a passes through the first shell 101 and the second shell 102, and the scroll connector 103b-1 set at the other end of the scroll spring 103b is connected to the jumper wire, and the side wall of the scroll spring 103b is provided with a groove 103b-2.

[0038] Preferably, the transmission assembly 104 includes a driving gear 104a and a transmission gear 104b, the driving gear 104a passes through the second shell 102 and is arranged on the first shell 101, the driving gear 104a is meshed and connected with the transmission gear 104b, the transmission gear 104b is movably connected to the second shell 102, and the transmission gear 104b rotates around the center of the second shell 102.

[0039] Furthermore, the driving gear 104a includes a first gear 104a-1, a connecting shaft 104a-2 and a second gear 104a-3. The first gear 104a-1 is provided at one end of the connecting shaft 104a-2, and the second gear 104a-3 is provided at the other end of the connecting shaft 104a-2. The first gear 104a-1 is meshed with the groove 103b-2. The spiral spring 103b extends to drive the first gear 104a-1 to rotate. The transmission gear 104b includes a third gear 104 b-1 and the rotating shaft 104b-2, the third gear 104b-1 is meshed with the second gear 104a-3, the rotating shaft 104b-2 is arranged on one side of the third gear 104b-1, and a limit block 104b-21 is provided at the top of the rotating shaft 104b-2, the limit block 104b-21 limits the stroke of the collar 201, a sliding groove 104b-22 is provided on one side of the limit block 104b-21, and a limit groove 104b-23 is provided on one side of the sliding groove 104b-22.

[0040] Preferably, the ring 201 includes symmetrically arranged connecting platforms 201a and protruding shafts 201b arranged on the inner wall of the ring 201. In this embodiment, there are three symmetrically arranged connecting platforms 201a. The protruding shafts 201b are slidably connected to the limiting grooves 104b-23, so that the ring 201 moves up and down on the rotating shaft 104b-2.

[0041] Preferably, the wire assembly 202 includes a connecting rod 202a, a connecting plate 202b and an oblique arc block 202c, the connecting rod 202a is hingedly connected to the connecting platform 201a, the connecting rod 202a is hingedly connected to the connecting plate 202b, the connecting plate 202b is hingedly connected to the oblique arc block 202c, and the arc surface of the oblique arc block 202c is comparable to the diameter of the base 101a.

[0042] Furthermore, the connecting plate 202b includes a connecting block 202b-1, which is arranged on the bottom side of the connecting plate 202b; the oblique arc block 202c includes a receiving groove 202c-1, which is arranged on the arc surface of the oblique arc block 202c.

[0043] Preferably, the chassis 203 is arranged on the limiting groove 104b-23, and the chassis 203 is symmetrically provided with a slide groove 203a, which is slidingly connected to the connecting block 202b-1, that is, when the ring 201 moves upward, the connecting plate 202b shrinks toward the center of the circle.

[0044] When in use, one end of the vortex spring 103b is fixedly set on the main shaft 103a, and the vortex connector 103b-1 set at the other end of the vortex spring 103b is connected to the jumper wire. When the vortex spring 103b is not subjected to force, the jumper wire is placed in the accommodating space formed by the oblique arc block 202c and the base 101a. When the jumper wire is pulled, the vortex spring 103b is driven to extend outward, the length of the jumper wire increases, and the accommodating space required increases. The groove 103b-2 on the vortex spring 103b is engaged with the first gear 104a-1, driving the second gear 104a-3 to rotate, and the third gear 104b-1 is connected to the second gear 104a-3. 04a-3 is engaged and connected, the ring 201 is sleeved on the rotating shaft 104b-2, and when the third gear 104b-1 rotates, the ring 201 moves upward, the connecting rod 202a is hingedly connected to the connecting platform 201a, the connecting rod 202a is hingedly connected to the connecting plate 202b, and the connecting plate 202b is hingedly connected to the bevel block 202c, so that the ring 201 moves upward to the limit block 104b-21, so that the bevel block 202c shrinks toward the rotating shaft 104b-2. At this time, the accommodating space of the bevel block 202c and the base 101a is increased, which can accommodate more jumper wires and prevent the jumper wires from being exposed.

[0045] Example 3

[0046] Reference Figures 1 to 7This is the third embodiment of the present invention, which further provides a hybrid jumper device. The device includes a jumper 300. A first housing 101 is disposed within the jumper 300. The jumper 300 includes a mechanical jumper 301, an active electronic jumper 302, and a passive electronic jumper 303. The active electronic jumper 302 is disposed on one side of the mechanical jumper 301, and the passive electronic jumper 303 is disposed on the other side of the active electronic jumper 302.

[0047] During use, according to the prior art, when an emergency shutdown is required during normal operation of the generator, the excitation system receives an excitation trip command to disconnect the demagnetization switch, and sends a closing command to the mechanical jumper 301, and sends a control signal to the active electronic jumper 302. The closing command of the mechanical jumper 301 and the control signal of the active electronic jumper 302 are linked with the excitation trip command. The active electronic jumper 302 triggers the thyristor to conduct the fastest speed. After the thyristor is conducted, the demagnetization resistor can be connected to the demagnetization circuit for demagnetization; then the mechanical jumper 301 is closed in place, which increases the connection of the demagnetization resistor. A circuit is formed; the above two parts fail. As a backup protection, the reverse voltage of the generator rotor continues to rise and is applied to the passive electronic jumper 303 at both ends of the rotor until the voltage on the passive electronic jumper 303 is high enough. The passive electronic jumper 303 sends a trigger pulse to the trigger pole of the thyristor, triggering the thyristor to connect the demagnetization resistor to the demagnetization circuit for demagnetization, and finally completing the demagnetization work. When the mechanical jumper 301 is connected to the jumper wire, the connected jumper wire shrinks into the accommodation space formed by the oblique arc block 202c and the base 101a, which can avoid the situation of messy wiring and lack of safety.

[0048] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete elements can be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0049] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0050] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A wire take-up mechanism, characterized in that: include, A wire take-up unit (100) includes a first housing (101), a second housing (102), a retracting assembly (103), and a transmission assembly (104); the retracting assembly (103) is arranged in a receiving space formed by the first housing (101) and the second housing (102); the retracting assembly (103) is meshedly connected with the transmission assembly (104); A telescopic unit (200), the transmission assembly (104) is movably connected to the telescopic unit (200), the telescopic unit (200) comprises a collar (201), a wire assembly (202) and a chassis (203), the chassis (203) is arranged on the transmission assembly (104), the collar (201) is sleeved on the transmission assembly (104), the wire assembly (202) is movably connected to the collar (201), and the wire assembly (202) is slidably connected to the chassis (203).

2. The wire take-up mechanism according to claim 1, wherein: The first shell (101) includes a base (101a) and a ring body (101b), wherein the ring body (101b) is arranged on the base (101a), and the ring body (101b) includes a positioning hole (101b-1) and an opening (101b-2), wherein the opening (101b-2) is arranged on the ring body (101b), and the positioning hole (101b-1) is arranged on the top side of the ring body (101b).

3. The wire take-up mechanism according to claim 1 or 2, wherein: The contraction assembly (103) comprises a main shaft (103a) and a scroll spring (103b), one end of the scroll spring (103b) is fixedly arranged on the main shaft (103a), a scroll connector (103b-1) arranged at the other end of the scroll spring (103b) is connected to a jumper line, and a groove (103b-2) is arranged on the side wall of the scroll spring (103b).

4. The wire take-up mechanism according to claim 3, wherein: The transmission assembly (104) comprises a driving gear (104a) and a transmission gear (104b); the driving gear (104a) is arranged on the first housing (101); the driving gear (104a) is meshedly connected with the transmission gear (104b); and the transmission gear (104b) is movably connected with the second housing (102).

5. The wire take-up mechanism according to claim 4, wherein: The driving gear (104a) comprises a first gear (104a-1), a connecting shaft (104a-2) and a second gear (104a-3); the first gear (104a-1) is provided at one end of the connecting shaft (104a-2), and the second gear (104a-3) is provided at the other end of the connecting shaft (104a-2); the first gear (104a-1) is meshed and connected with the groove (103b-2); The transmission gear (104b) comprises a third gear (104b-1) and a rotating shaft (104b-2); the third gear (104b-1) is meshedly connected with the second gear (104a-3); the rotating shaft (104b-2) is arranged on one side of the third gear (104b-1); a limiting block (104b-21) is arranged on the top of the rotating shaft (104b-2); a sliding groove (104b-22) is arranged on one side of the limiting block (104b-21); and a limiting groove (104b-23) is arranged on one side of the sliding groove (104b-22).

6. The wire take-up mechanism according to claim 1 or 5, characterized in that: The collar (201) comprises a symmetrically arranged connecting platform (201a) and a convex shaft (201b) arranged on the inner side wall of the collar (201), and the convex shaft (201b) is slidably connected to the limiting groove (104b-23).

7. The wire take-up mechanism according to claim 6, wherein: The conductor assembly (202) comprises a connecting rod (202a), a connecting plate (202b) and an oblique arc block (202c); the connecting rod (202a) is hingedly connected to the connecting platform (201a); the connecting rod (202a) is hingedly connected to the connecting plate (202b); and the connecting plate (202b) is hingedly connected to the oblique arc block (202c).

8. The wire take-up mechanism according to claim 7, wherein: The connecting plate (202b) comprises a connecting block (202b-1), and the connecting block (202b-1) is arranged on the bottom side of the connecting plate (202b); The oblique arc block (202c) comprises a receiving groove (202c-1), and the receiving groove (202c-1) is arranged on the arc-shaped surface of the oblique arc block (202c).

9. The wire take-up mechanism according to claim 1 or 8, wherein: The chassis (203) is arranged on the limiting groove (104b-23), and sliding grooves (203a) are symmetrically arranged on the chassis (203), and the sliding grooves (203a) are slidably connected to the connecting block (202b-1).

10. A hybrid jumper device, characterized in that: comprising the wire take-up mechanism according to any one of claims 1 to 8; and A jumper (300), wherein the first housing (101) is arranged in the jumper (300), and the jumper (300) comprises a mechanical jumper (301), an active electronic jumper (302), and a passive electronic jumper (303), wherein the active electronic jumper (302) is arranged on one side of the mechanical jumper (301), and the passive electronic jumper (303) is arranged on one side of the active electronic jumper (302).

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