Hydraulic wire crimping device for electric power installation

Abstract

The invention discloses a hydraulic wire crimping device for electric power installation, relates to the technical field of cable crimping, and aims to solve the technical problems that cable end wire cores are usually attached in parallel before crimping of a current crimping device, simple wrapping type connection is adopted, and the mechanical firmness of a connecting part after crimping is insufficient, and the hydraulic wire crimping device comprises a box body assembly. According to the invention, through the design of the cable separation structure, the cable separation structure drives each wire core to diffuse and separate and form a spiral core holding state in a manner of inserting and rotating with the cable end, and the state can greatly improve the air-blowing cleaning efficiency, thoroughly remove impurities at the end and guarantee the butt joint cleanliness; according to the cable crimping assembly, cable ends in a spiral core holding state can be hinged together, so that the connection firmness and the conductivity are remarkably enhanced. Through the design of the cable separation structure, the cable cores of the cable ends can be diffused and separated to form a spiral core holding state before crimping, so that the crimped cable ends can be hinged together, and the firmness and the conductivity are enhanced.

Description

Technical Field

[0001] This invention relates to the field of cable crimping technology, and more specifically, to a hydraulic wire crimping device for power installation. Background Technology

[0002] In the installation and construction of power systems, conductor crimping is one of the core processes in the construction and maintenance of transmission lines and distribution networks. The mechanical strength and conductivity of the crimped joints directly determine the operational stability and service life of the lines. Hydraulic conductor crimping devices, with their advantages of large crimping force and reliable crimping effect, have become key equipment for achieving permanent connections between conductors and clamps, and between conductors in power installation.

[0003] However, in existing technologies, the cable ends before crimping are often in a parallel, tangled, or loose state, allowing only a simple wrapping connection during crimping. This makes it difficult to form a stable hinged structure at the cable ends, resulting in insufficient mechanical strength of the crimped connection. The connection is prone to wire core loosening, displacement, and breakage due to external forces, vibration, and environmental temperature changes. Furthermore, the limited contact area and uneven contact between the wire cores lead to high contact resistance and poor conductivity, which can cause localized heating during long-term use, potentially leading to short circuits, ablation, and power outages. Therefore, we propose a hydraulic wire crimping device for power installation. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art, adapt to practical needs, and provide a hydraulic wire crimping device for power installation. This addresses the technical problem that current crimping devices often have the cable end cores parallel and attached before crimping, using a simple wrapping connection, resulting in insufficient mechanical strength of the connection after crimping.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a hydraulic wire crimping device for power installation, comprising a housing assembly, a set of cable guiding assemblies and a set of cable cleaning assemblies symmetrically arranged on both sides of the housing assembly, and a cable crimping assembly arranged in the middle of the housing assembly;

[0006] The cable guide assembly is used to center and lock the incoming cable in place.

[0007] The cable cleaning assembly is used to clean and crimp the broken parts of the cable with air. The cable cleaning assembly includes a cable separation structure. When the cable separation structure is inserted and rotated with the cable end, it can drive the individual cores of the cable end to diffuse and separate to form a spiral core-hugging state.

[0008] The cable crimping assembly is used to crimp two cable ends in a spiral-core configuration.

[0009] Preferably, the housing assembly includes an upper housing, a lower housing, a first hydraulic drive unit, a guide rod, and a positioning pin;

[0010] The upper and lower housings form a pressing box. A plurality of the first hydraulic drive units are installed in the lower housing, and the upper housing is installed at the output end of the plurality of the first hydraulic drive units. A plurality of the guide rods are installed on one side of the bottom of the upper housing and are slidably connected to the same side of the top of the lower housing. A plurality of the positioning pins are installed on the other side of the bottom of the upper housing and are inserted and connected to the same side of the top of the lower housing.

[0011] When the output end of the first hydraulic drive unit moves to its maximum stroke, the distance between the positioning pin and the end face of the lower housing is greater than the width of the crimped cable.

[0012] Preferably, the sealing guide structure includes a guide airbag and a first air intake pipe;

[0013] Several of the guide airbags are respectively installed on the upper box and the lower box. The first air inlet pipe is connected to several guide airbags and is connected to an external air supply device. The guide airbags are semi-circular structures, and every two guide airbags distributed vertically in the upper and lower boxes form a ring-shaped sealing structure.

[0014] Preferably, the sealing guide structure further includes a protrusion and a recess; the protrusion and the recess are respectively disposed at both ends of the guide airbag, and the two guide airbags of the annular sealing structure are connected to each other through the protrusion and the recess.

[0015] The cable guiding assembly further includes a guide cavity; the two guide cavities are located on both sides of the crimping box, and the guide cavity is located between the sealing guide structure and the tightening structure.

[0016] Preferably, the tightening structure includes a first ball valve, a first rotary drive unit, and a first through hole;

[0017] Both parts of the first ball valve are rotatably connected in the guide cavity. The first rotary drive unit is mounted on the upper housing, and the first ball valve is connected to the output end of the first rotary drive unit. The first through hole is opened on the first ball valve, and the size of the first through hole is adapted to the cable.

[0018] Preferably, the cable cleaning assembly includes a cleaning chamber, a purge hole, and a second air inlet pipe;

[0019] The two cleaning chambers are located on both sides of the crimping box, and a number of purge holes are opened on the cleaning chambers. The purge holes are connected to the second air inlet pipe, which is connected to an external nitrogen cylinder or nitrogen delivery equipment.

[0020] Preferably, the cable cleaning assembly further includes a cleaning sealing structure, which includes a second ball valve, a second rotary drive unit, and a second through hole;

[0021] Both parts of the second ball valve are rotatably connected inside the cleaning chamber. The second rotary drive unit is mounted on the upper housing, and the second ball valve is connected to the output end of the second rotary drive unit. The second through hole is opened on the second ball valve, and the second through hole is adapted to the size of the cable.

[0022] Preferably, the cable cleaning assembly further includes a cable separation structure, which includes a third rotary drive unit, a first friction torsion wheel, a rotary mounting component, a linear drive unit, and a separation arc plate;

[0023] The third rotary drive unit is mounted on the upper housing, the first friction torsion wheel is mounted on the output end of the third rotary drive unit, the rotary mounting component is rotatably connected to the upper housing, and the rotary mounting component is drively connected to the first friction torsion wheel. A plurality of linear drive units are equidistantly and annularly mounted inside the rotary mounting component. A plurality of separation arc plates are respectively mounted on the output ends of a plurality of linear drive units. One end of each of the separation arc plates faces the center of the cleaning chamber and is arranged in a frustum-shaped structure, with the smaller end of the frustum-shaped structure facing the direction in which the cable enters the cleaning chamber.

[0024] Preferably, the separating arc plate has two levels of guide rails. The first level of guide rail of the separating arc plate is a spiral twisted rail, and the second level of guide rail of the separating arc plate is a straight rail. The first level of guide rail is used to guide the wire core into the rail, and the wire core is twisted when rotated. The second level of guide rail is used to make the twisted wire core unfold outward.

[0025] Preferably, the cable crimping assembly includes a crimping cavity, a crimping plate, a second hydraulic drive unit, a fourth rotary drive unit, a transmission component, and a second friction torsion wheel;

[0026] The crimping cavity is located in the middle of the crimping box, the crimping plate is located inside the crimping cavity, the second hydraulic drive unit is mounted on the upper box, and the output end of the second hydraulic drive unit is connected to the crimping plate. The two fourth rotary drive units are respectively mounted on both sides of the crimping cavity, and the output end of the fourth rotary drive unit is connected to the second friction torsion wheel through a transmission component. The second friction torsion wheel is used to drive the rotating parts at both ends of the crimping sleeve to rotate.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. This invention, through the design of a cable separation structure, enables the cable guiding component to centrally guide and lock the incoming cable, effectively preventing cable deviation. The cable cleaning component combines air-blowing cleaning and crimping / shaping functions. Its core cable separation structure, through insertion and rotation with the cable end, causes the individual cores to diffuse and separate, forming a spiral core-hugging state. This state significantly improves air-blowing cleaning efficiency, thoroughly removing impurities from the end and ensuring cleanliness of the connection. Finally, the cable crimping component precisely applies pressure to the two spiral core-hugging cable ends to complete the crimping, allowing the spiral core-hugging cable ends to be hinged together, significantly enhancing connection strength and conductivity, greatly improving repair efficiency and quality, and adapting to the fracture repair needs of various cable specifications. This invention, through the design of the cable separation structure, enables the cores of the cable end to diffuse and separate into a spiral core-hugging state before crimping, allowing the crimped cable ends to be hinged together, enhancing strength and conductivity.

[0029] 2. This invention utilizes a sealed guiding structure design. The semi-annular guiding airbag is precisely joined between the protruding and recessed ends of the upper and lower housings, forming a complete annular sealing structure. After external air supply equipment inflates the airbag through the first air inlet pipe, the airbag tightly adheres to the cable surface, achieving both centered cable guidance and a tight sealing barrier. The convex-concave splicing design eliminates leakage at the airbag joints. The tightening structure allows for both opening and sealing of the guiding channel. Furthermore, the first ball valve can be twisted to secure the cable when needed. This invention, through its sealed guiding structure design and integrated layout, integrates guiding and sealing functions, simplifying the equipment structure and improving operational convenience.

[0030] 3. This invention, through the design of a cable cleaning component, specifically enhances cleaning capabilities. It outputs high-pressure nitrogen to thoroughly clean the cable breakage area, completely removing dust, oxide layers, and other impurities from the wire core surface, ensuring the conductivity and connection strength of subsequent crimping. The cleaning and sealing structure forms an independent, enclosed cleaning space, preventing impurities from spreading to the guide or crimping area during blowing. Simultaneously, the second through-hole's adaptation design to the cable ensures both sealing reliability and guide compatibility. This invention, through the design of the cable cleaning component and its deep integration with the pre-installed guide and sealing system, further improves the overall cleanliness and stability of the operation, while the integrated layout simplifies the operation process.

[0031] 4. This invention utilizes a cable separation structure design with six separation arc plates arranged in a frustum shape. Its built-in two-stage guide rails enable precise grading of the cable cores. The first-stage spiral twisting track guides the cable cores during rotation, causing uniform twisting. The second-stage linear track smoothly unfolds the twisted cores outward, creating a spiral core-hugging state at the cable end. This significantly increases the contact area and mating accuracy of the cable cores. The fourth rotary drive unit on both sides of the crimping cavity drives the second friction torsion wheel to rotate via a transmission component. This precisely drives the rotating parts at both ends of the crimping sleeve to twist synchronously, forming a dual fixing effect of "hydraulic crimping and tightening + torsion-strengthened locking," further enhancing the tensile strength and vibration resistance of the connection. This invention, through its cable separation structure design, creates a highly separated spiral core-hugging state for the cable cores, significantly increasing the mating contact area. Combined with the synergistic crimping torsion locking, the crimping strength is improved. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure when the first hydraulic drive unit of the present invention drives the upper box to rise;

[0034] Figure 3 This is a schematic diagram of the structure of the lower housing of the present invention;

[0035] Figure 4 This is a schematic diagram of the structure of the first hydraulic drive unit of the present invention;

[0036] Figure 5 This is a schematic diagram of the cable guide assembly of the present invention;

[0037] Figure 6 This is a schematic diagram of the sealing guide structure of the present invention;

[0038] Figure 7 This is a schematic diagram of the structure of the guide airbag of the present invention;

[0039] Figure 8 This is a schematic diagram of the cable cleaning assembly of the present invention;

[0040] Figure 9 This is a cross-sectional view of the cable cleaning assembly of the present invention;

[0041] Figure 10 This is a schematic diagram of the cable separation structure of the present invention;

[0042] Figure 11 This is a schematic diagram of the separation arc plate of the present invention;

[0043] Figure 12 This is a schematic diagram of the cable crimping assembly of the present invention;

[0044] Figure 13 This is a cross-sectional view of the press-fit sleeve of the present invention.

[0045] Explanation of the labels in the diagram:

[0046] 1. Enclosure assembly; 2. Cable guide assembly; 3. Cable cleaning assembly; 4. Cable crimping assembly;

[0047] 101. Upper housing; 102. Lower housing; 103. First hydraulic drive unit; 104. Guide rod; 105. Positioning pin;

[0048] 201. Sealing and guiding structure; 202. Tightening structure; 203. Guide cavity;

[0049] 2011, Guide airbag; 2012, First air intake pipe; 2013, Protrusion; 2014, Recess;

[0050] 2021, First ball valve; 2022, First rotary drive unit; 2023, First through hole;

[0051] 301. Cleaning chamber; 302. Purge port; 303. Second air inlet pipe; 304. Cleaning sealing structure; 305. Cable separation structure;

[0052] 3041, Second ball valve; 3042, Second rotary drive unit; 3043, Second through hole;

[0053] 3051, Third rotary drive unit; 3052, First friction torsion wheel; 3053, Rotary mounting component; 3054, Linear drive unit; 3055, Separation arc plate;

[0054] 401. Pressing cavity; 402. Pressing plate; 403. Second hydraulic drive unit; 404. Fourth rotary drive unit; 405. Transmission component; 406. Second friction torsion wheel. Detailed Implementation

[0055] Examples, such as Figures 1 to 10 As shown, the present invention relates to a hydraulic wire crimping device for power installation, comprising a housing assembly 1, a set of cable guiding assemblies 2 and a set of cable cleaning assemblies 3 symmetrically arranged on both sides of the housing assembly 1, and a cable crimping assembly 4 disposed in the middle of the housing assembly 1; the cable guiding assemblies 2 are used for centering and locking the incoming cable; the cable cleaning assemblies 3 are used for air-blowing cleaning and crimping shaping of the cable breakage point, the cable cleaning assemblies 3 include a cable separation structure 305, which, when inserted and rotated with the cable end, can drive the individual cores of the cable end to diffuse and separate to form a spiral core-hugging state; the cable crimping assembly 4 is used for crimping the cable ends in the two spiral core-hugging states.

[0056] This invention, through the design of the cable separation structure 305, enables the cable guide assembly 2 to centrally guide and lock the incoming cable, effectively preventing cable deviation. The cable cleaning assembly 3 combines air-blowing cleaning and crimping functions. Its core cable separation structure 305, through insertion and rotation with the cable end, causes the individual cores to diffuse and separate, forming a spiral core-hugging state. This state significantly improves air-blowing cleaning efficiency, thoroughly removing impurities from the end and ensuring cleanliness of the connection. Finally, the cable crimping assembly 4 precisely applies pressure to the two spiral core-hugging cable ends to complete the crimping, allowing the spiral core-hugging cable ends to be hinged together, significantly enhancing connection strength and conductivity, greatly improving repair efficiency and quality, and adapting to the fracture repair needs of various cable specifications. This invention, through the design of the cable separation structure 305, enables the cores of the cable end to diffuse and separate into a spiral core-hugging state before crimping, allowing the crimped cable ends to be hinged together, enhancing strength and conductivity.

[0057] Specifically, such as Figures 1 to 7 As shown, the housing assembly 1 of the present invention includes an upper housing 101, a lower housing 102, a first hydraulic drive unit 103, guide rods 104, and positioning pins 105; the upper housing 101 and the lower housing 102 form a crimping box, two first hydraulic drive units 103 are installed inside the lower housing 102, and the upper housing 101 is installed at the output end of the two first hydraulic drive units 103, three guide rods 104 are installed on one side of the bottom end of the upper housing 101 and slidably connected to the same side of the top end of the lower housing 102, and five positioning pins 105 are installed on the other side of the bottom end of the upper housing 101 and inserted into the same side of the top end of the lower housing 102; when the output end of the first hydraulic drive unit 103 moves to its maximum stroke, the distance between the end face of the positioning pin 105 and the lower housing 102 is greater than the width of the crimped cable.

[0058] The sealing guide structure 201 includes guide airbags 2011 and a first air inlet pipe 2012; several guide airbags 2011 are respectively installed on the upper box 101 and the lower box 102, the first air inlet pipe 2012 is connected to eight guide airbags 2011, the first air inlet pipe 2012 is connected to an external air supply device, the guide airbags 2011 are semi-circular structures, and every two guide airbags 2011 distributed in the vertical direction in the upper box 101 and the lower box 102 form an annular sealing structure.

[0059] The sealing guide structure 201 also includes a protrusion 2013 and a recess 2014; the protrusion 2013 and the recess 2014 are respectively provided at both ends of the guide airbag 2011, and the two guide airbags 2011 of the annular sealing structure are connected to each other through the protrusion 2013 and the recess 2014; the cable guide assembly 2 also includes a guide cavity 203; the two guide cavities 203 are respectively located on both sides of the crimping box, and the guide cavity 203 is located between the sealing guide structure 201 and the tightening structure 202.

[0060] The tightening structure 202 includes a first ball valve 2021, a first rotary drive unit 2022, and a first through hole 2023. Both parts of the first ball valve 2021 are rotatably connected in the guide cavity 203. The first rotary drive unit 2022 is mounted on the upper housing 101, and the first ball valve 2021 is connected to the output end of the first rotary drive unit 2022. The first through hole 2023 is opened on the first ball valve 2021, and the first through hole 2023 is adapted to the size of the cable.

[0061] This invention integrates the core structures of the housing assembly 1 and the cable guide assembly 2 through the design of the sealed guide structure 201, and constructs a basic guarantee system for cable maintenance that is "precise guidance, tight sealing and stable operation". It solves the pain points of traditional equipment such as cable inlet guide deviation, poor sealing and misalignment of housing opening and closing, and provides a stable and reliable pre-positioning guarantee for subsequent cleaning and crimping operations, and is suitable for the maintenance needs of various cable specifications.

[0062] This invention uses the housing assembly 1 as the core supporting foundation. The upper housing 101 and the lower housing 102 are fastened together to form a sealed crimping box. Two first hydraulic drive units 103 provide stable and controllable power for the opening and closing of the housing. Three guide rods 104 realize the sliding guidance of the upper housing 101, and five positioning pins 105 ensure the precise docking of the upper and lower housings, avoiding subsequent operation errors caused by opening and closing offset. The specially designed "distance between the positioning pin 105 and the lower housing 102 when the first hydraulic drive unit 103 is at its maximum stroke is greater than the width of the cable after crimping" not only reserves sufficient space for cable loading and unloading and operation, but also avoids the positioning structure from interfering with the removal of the finished product, taking into account both practicality and convenience.

[0063] The core cable guiding component 2 constructs a triple guarantee of "splicing and sealing + precise guidance + controllable sealing": the sealing and guiding structure 201 adopts several semi-annular guiding airbags. The airbags of the upper and lower housings are precisely spliced ​​through the end protrusions 2013 and recesses 2014 to form a complete annular sealing structure. After the external air supply equipment is inflated through the first air inlet pipe 2012, the airbags tightly fit the cable surface, achieving both centered cable guidance and forming a tight sealing barrier. The convex and concave splicing design eliminates leakage at the joints of the airbags; the guiding cavity 203 serves as a sealing... The transition area between the sealing guide structure 201 and the tightening structure 202 can buffer external impacts and prevent impurities from entering the core working area. The first ball valve 2021 of the tightening structure 202 is driven to rotate precisely by the first rotary drive unit 2022. By switching the alignment / misalignment state of the first through hole 2023 with the cable, the opening and sealing of the guide channel can be realized. The adaptation design of the first through hole 2023 with the cable further improves the guiding accuracy and sealing compatibility. The first ball valve 2021 can be twisted to fix the cable when it is necessary to fix the cable.

[0064] The present invention integrates the guiding and sealing functions through the design of the sealing guide structure 201, which simplifies the equipment structure and improves the ease of operation.

[0065] It is worth noting that, such as Figures 8 to 9 As shown, the cable cleaning assembly 3 of the present invention includes a cleaning chamber 301, a purge hole 302, and a second air inlet pipe 303; the two cleaning chambers 301 are respectively located on both sides of the crimping box, fifty purge holes 302 are opened on the cleaning chambers 301, and the fifty purge holes 302 are connected to the second air inlet pipe 303, which is connected to an external nitrogen cylinder or nitrogen delivery equipment.

[0066] The cable cleaning assembly 3 also includes a cleaning sealing structure 304, which includes a second ball valve 3041, a second rotary drive unit 3042, and a second through hole 3043. Both parts of the second ball valve 3041 are rotatably connected in the cleaning chamber 301. The second rotary drive unit 3042 is mounted on the upper housing 101, and the second ball valve 3041 is connected to the output end of the second rotary drive unit 3042. The second through hole 3043 is opened on the second ball valve 3041, and the second through hole 3043 is adapted to the size of the cable.

[0067] This invention integrates the housing assembly 1, cable guide assembly 2, and cable cleaning assembly 3 through the design of the cable cleaning component 3, constructing a pre-treatment system for cable repair that consists of "pre-guiding sealing - closed nitrogen cleaning - subsequent precise crimping". This system solves the problems of incomplete cleaning, residual impurities affecting crimping quality, and sealing failure during cleaning in traditional cable repair equipment. It provides a clean and stable pre-treatment guarantee for subsequent crimping operations and is suitable for the repair needs of various cable specifications.

[0068] The cable cleaning component 3 is specifically designed to enhance cleaning capabilities: two cleaning chambers 301 correspond to both sides of the crimping box, and fifty blowing holes 302 are evenly distributed. Through the second air inlet pipe 303, it is connected to an external nitrogen equipment, which can output high-pressure nitrogen to achieve thorough cleaning of the cable breakage point, completely removing dust, oxide layers and other impurities from the surface of the wire core, ensuring the conductivity and connection firmness of subsequent crimping. The second ball valve 3041 of the cleaning sealing structure 304 is precisely driven by the second rotary drive unit 3042. Through the alignment / staggering of the second through hole 3043 with the cable, an independent closed cleaning space is formed, preventing impurities from spreading to the guide area or crimping area during blowing. At the same time, the adaptation design of the second through hole 3043 with the cable takes into account both sealing reliability and guide compatibility.

[0069] The present invention, through the design of the cable cleaning component 3 and its deep integration with the front-mounted guide sealing system, further improves the cleanliness and stability of the overall operation, and the integrated layout simplifies the operation process.

[0070] Furthermore, such as Figures 9 to 13 As shown, the cable cleaning assembly 3 of the present invention also includes a cable separation structure 305, which includes a third rotary drive unit 3051, a first friction torsion wheel 3052, a rotary mounting component 3053, a linear drive unit 3054, and a separation arc plate 3055.

[0071] The third rotary drive unit 3051 is mounted on the upper housing 101. The first friction torsion wheel 3052 is mounted on the output end of the third rotary drive unit 3051. The rotary mounting component 3053 is rotatably connected to the upper housing 101 and is connected to the first friction torsion wheel 3052. Several linear drive units 3054 are equidistantly and annularly mounted inside the rotary mounting component 3053. Six separation arc plates 3055 are respectively mounted on the output ends of the six linear drive units 3054. One end of each of the six separation arc plates 3055 faces the center of the cleaning chamber 301 and is arranged in a frustum shape. The smaller end of the frustum shape faces the direction in which the cable enters the cleaning chamber 301.

[0072] The separation arc plate 3055 has two levels of guide rails. The first level of the separation arc plate 3055 is a spiral twisted track, and the second level of the separation arc plate 3055 is a straight track. The first level of the guide rail is used to guide the wire core into the track, and the wire core is twisted when rotated. The second level of the guide rail is used to make the twisted wire core unfold outward.

[0073] The cable crimping assembly 4 includes a crimping cavity 401, a crimping plate 402, a second hydraulic drive unit 403, a fourth rotary drive unit 404, a transmission component 405, and a second friction torsion wheel 406. The crimping cavity 401 is located in the middle of the crimping box, and the crimping plate 402 is located inside the crimping cavity 401. The second hydraulic drive unit 403 is mounted on the upper housing 101, and the output end of the second hydraulic drive unit 403 is connected to the crimping plate 402. The two fourth rotary drive units 404 are respectively mounted on both sides of the crimping cavity 401, and the output end of the fourth rotary drive unit 404 is connected to the second friction torsion wheel 406 through the transmission component 405. The second friction torsion wheel 406 is used to drive the rotating parts at both ends of the crimping sleeve to rotate.

[0074] This invention integrates the housing assembly 1, cable guide assembly 2, cable cleaning assembly 3 with graded guide cable separation structure 305, and cable crimping assembly 4 through the design of cable separation structure 305. It constructs an automated cable repair system of "inlet guiding and sealing - graded cable separation - closed clean cleaning - hydraulic precision crimping - torsion reinforcement and locking". It solves the core pain points of traditional cable repair equipment, such as low cable separation accuracy, small core contact area, incomplete cleaning, and weak crimping connection. It significantly improves the connection strength, conductivity and long-term stability of cable repair, and perfectly adapts to the fracture repair needs of various specifications of cables.

[0075] The cable cleaning component 3 achieves refined processing through "graded separation + closed purging + independent sealing". Its newly added cable separation structure 305 is a key innovation: six separation arc plates 3055 are arranged in a frustum shape. Its built-in two-stage guide rails enable precise graded processing of the wire cores. The first-stage spiral twisting track guides the wire cores in and generates uniform twisting during rotation. The second-stage straight track smoothly unfolds the twisted wire cores outward, so that the cable end forms a spiral core-hugging state, which greatly improves the contact area and docking accuracy of the wire cores. The cable crimping assembly 4 provides dual protection for connection strength. The crimping plate 402 in the middle of the crimping cavity 401 is driven by the second hydraulic drive unit 403, which can output a stable and controllable crimping force to achieve precise crimping of the crimping sleeve and the spiral core end. The fourth rotary drive unit 404 on both sides of the crimping cavity 401 drives the second friction torsion wheel 406 to rotate through the transmission component 405, which can precisely drive the rotating parts at both ends of the crimping sleeve to rotate synchronously, forming a dual fixing effect of "hydraulic crimping fastening + torsion strengthening locking", further improving the tensile strength and vibration resistance of the connection.

[0076] The present invention, through the design of the cable separation structure 305, enables the core to form a spiral core-hugging state with a high degree of separation, which greatly increases the contact area of ​​the mating. Combined with the synergy of crimping torsion locking, the crimping strength is improved.

[0077] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A hydraulic wire crimping device for power installation, characterized in that, It includes a housing assembly (1), a set of cable guiding assemblies (2) and a set of cable cleaning assemblies (3) symmetrically arranged on both sides of the housing assembly (1), and a cable crimping assembly (4) arranged in the middle of the housing assembly (1). The cable guide assembly (2) is used to center and lock the incoming cable; The cable cleaning assembly (3) is used to clean and crimp the broken part of the cable with air. The cable cleaning assembly (3) includes a cable separation structure (305). When the cable separation structure (305) is inserted and rotated with the cable end, it can drive the individual cores of the cable end to diffuse and separate to form a spiral core-hugging state. The cable crimping assembly (4) is used to crimp the two cable ends in a spiral-core state.

2. The hydraulic wire crimping device for power installation according to claim 1, characterized in that, The housing assembly (1) includes an upper housing (101), a lower housing (102), a first hydraulic drive unit (103), a guide rod (104), and a positioning pin (105). The upper housing (101) and the lower housing (102) form a pressing box. A plurality of the first hydraulic drive units (103) are installed inside the lower housing (102), and the upper housing (101) is installed at the output end of the plurality of the first hydraulic drive units (103). A plurality of the guide rods (104) are installed on one side of the bottom end of the upper housing (101) and are slidably connected to the same side of the top end of the lower housing (102). A plurality of the positioning pins (105) are installed on the other side of the bottom end of the upper housing (101) and are inserted and connected to the same side of the top end of the lower housing (102). When the output end of the first hydraulic drive unit (103) moves to its maximum stroke, the distance between the end face of the positioning pin (105) and the lower housing (102) is greater than the width of the crimped cable.

3. The hydraulic wire crimping device for power installation according to claim 2, characterized in that, The sealing guide structure (201) includes a guide airbag (2011) and a first air inlet pipe (2012). Several of the guide airbags (2011) are respectively installed on the upper box (101) and the lower box (102). The first air inlet pipe (2012) is connected to several guide airbags (2011). The first air inlet pipe (2012) is connected to an external air supply device. The guide airbags (2011) have a semi-circular structure, and every two guide airbags (2011) distributed in the vertical direction of the upper box (101) and the lower box (102) form a ring-shaped sealing structure.

4. The hydraulic wire crimping device for power installation according to claim 3, characterized in that, The sealing guide structure (201) further includes a protrusion (2013) and a recess (2014); the protrusion (2013) and the recess (2014) are respectively provided at both ends of the guide airbag (2011), and the two guide airbags (2011) of the annular sealing structure are connected to each other through the protrusion (2013) and the recess (2014); The cable guiding assembly (2) further includes a guide cavity (203); the two guide cavities (203) are located on both sides of the crimping box, and the guide cavity (203) is located between the sealing guide structure (201) and the tightening structure (202).

5. A hydraulic wire crimping device for power installation according to claim 4, characterized in that, The tightening structure (202) includes a first ball valve (2021), a first rotary drive unit (2022), and a first through hole (2023). Both parts of the first ball valve (2021) are rotatably connected in the guide cavity (203). The first rotary drive unit (2022) is mounted on the upper housing (101), and the first ball valve (2021) is connected to the output end of the first rotary drive unit (2022). The first through hole (2023) is opened on the first ball valve (2021), and the first through hole (2023) is adapted to the size of the cable.

6. A hydraulic wire crimping device for power installation according to claim 5, characterized in that, The cable cleaning assembly (3) includes a cleaning chamber (301), a blowing hole (302), and a second air inlet pipe (303); The two cleaning chambers (301) are located on both sides of the crimping box, and a number of purge holes (302) are opened on the cleaning chambers (301), and the number of purge holes (302) are connected to the second air inlet pipe (303), which is connected to an external nitrogen cylinder or nitrogen delivery equipment.

7. A hydraulic wire crimping device for power installation according to claim 6, characterized in that, The cable cleaning assembly (3) further includes a cleaning sealing structure (304), which includes a second ball valve (3041), a second rotary drive unit (3042), and a second through hole (3043). Both parts of the second ball valve (3041) are rotatably connected in the cleaning chamber (301). The second rotary drive unit (3042) is mounted on the upper housing (101), and the second ball valve (3041) is connected to the output end of the second rotary drive unit (3042). The second through hole (3043) is opened on the second ball valve (3041), and the second through hole (3043) is adapted to the size of the cable.

8. A hydraulic wire crimping device for power installation according to claim 7, characterized in that, The cable cleaning assembly (3) further includes a cable separation structure (305), which includes a third rotary drive unit (3051), a first friction torsion wheel (3052), a rotary mounting component (3053), a linear drive unit (3054), and a separation arc plate (3055). The third rotary drive unit (3051) is mounted on the upper housing (101), the first friction torsion wheel (3052) is mounted on the output end of the third rotary drive unit (3051), the rotary mounting component (3053) is rotatably connected to the upper housing (101), and the rotary mounting component (3053) is connected to the first friction torsion wheel (3052) in a transmission connection. A plurality of linear drive units (3054) are equidistantly and annularly mounted in the rotary mounting component (3053). A plurality of separation arc plates (3055) are respectively mounted on the output ends of a plurality of linear drive units (3054). One end of each of the plurality of separation arc plates (3055) is arranged in a frustum-shaped structure facing the center of the cleaning chamber (301), and the smaller end of the frustum-shaped structure faces the direction in which the cable enters the cleaning chamber (301).

9. A hydraulic wire crimping device for power installation according to claim 8, characterized in that, The separation arc plate (3055) has two levels of guide rails. The first level of guide rail of the separation arc plate (3055) is a spiral twisted rail, and the second level of guide rail of the separation arc plate (3055) is a straight rail. The first level of guide rail is used to guide the wire core into the rail, and the wire core is twisted when rotated. The second level of guide rail is used to make the twisted wire core unfold outward.

10. A hydraulic wire crimping device for power installation according to claim 9, characterized in that, The cable crimping assembly (4) includes a crimping cavity (401), a crimping plate (402), a second hydraulic drive unit (403), a fourth rotary drive unit (404), a transmission component (405), and a second friction torsion wheel (406). The crimping cavity (401) is located in the middle of the crimping box, the crimping plate (402) is located inside the crimping cavity (401), the second hydraulic drive unit (403) is installed on the upper box (101), and the output end of the second hydraulic drive unit (403) is connected to the crimping plate (402). The two fourth rotary drive units (404) are respectively installed on both sides of the crimping cavity (401), and the output end of the fourth rotary drive unit (404) is connected to the second friction torsion wheel (406) through the transmission component (405). The second friction torsion wheel (406) is used to drive the rotating parts at both ends of the crimping sleeve to rotate.

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