Wire girdling device for wire hydraulic crimping machine

Abstract

The utility model discloses a wire girdling device for a wire hydraulic crimping machine, and belongs to the technical field of power line construction tools. The wire hydraulic crimping machine comprises a power source and a hydraulic clamp, the power source comprises a walking frame, a gasoline tank, a gasoline engine, a hydraulic oil tank, a hydraulic oil pump and a reversing control valve, and the wire girdling device comprises a girdling hydraulic mechanism, a girdling knife rest and a girdling knife. The girdling hydraulic mechanism comprises a girdling hydraulic oil cylinder lower cylinder body, a girdling hydraulic oil cylinder upper cylinder body and a cylinder column reset action spring, and a girdling hydraulic oil cylinder oil inlet and return pipe connector is arranged on the lower side portion of the girdling hydraulic oil cylinder lower cylinder body in a matched mode; an annular cutting hydraulic oil cylinder oil inlet and return pipeline connector is additionally arranged on the reversing control valve, and an annular cutting hydraulic oil cylinder oil inlet and return pipeline is connected with the annular cutting hydraulic oil cylinder oil inlet and return pipeline connector. The device has the advantages that daily convenient management and protection are facilitated, and loss is avoided; the wire can be reliably controlled in the process of cutting off the wire, and the roundness of a notch is ensured; the size is small, the weight is light, operation is convenient, and construction work intensity is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of power line construction tools, and in particular relates to a wire ring cutting device for a wire hydraulic crimping machine. Background Art

[0002] As is known in the industry, overhead lines are mainly overhead open lines, which use insulators to fix the transmission wires on the towers erected on the ground to transmit electric energy. Overhead transmission lines are favored by the power sector because of their low cost, strong mobility and easy maintenance. As is also known in the industry, the center of the overhead transmission line is usually a steel core wire (steel stranded wire) used to withstand tension, and the outer layer of the steel core wire is an aluminum stranded wire used to conduct current well, so as to fully reflect the respective advantages of the mechanical strength of steel and the electrical conductivity of aluminum. As is also known in the industry, due to the influence of natural factors such as strong winds, lightning strikes, ice and snow, hail, freezing, and dirt, the aforementioned overhead transmission line will inevitably break. If it is to be repaired in time, it is usually necessary to use the above-mentioned wire hydraulic crimping machine or similar equipment. Of course, in the initial wire construction process, because it is necessary to connect the two adjacent overhead transmission lines withdrawn from the wire drum, a wire hydraulic crimping machine is also required.

[0003] Typical examples of the above-mentioned wire hydraulic crimping machines include the "threaded steel sleeve cold extrusion machine" recommended by CN2263558Y, the "hydraulic wire crimping pliers with overload protection function" introduced in CN100421315C, the "hydraulic wire crimping machine" disclosed in CN2742641Y and the "hydraulic oil circulation filtering mechanism of the wire hydraulic crimping machine" disclosed in CN102011768A, etc.

[0004] The power mechanism (also called "power head" or "hydraulic station") as the power source and the "hydraulic pliers" as the crimping action actuator are disclosed in the structural system of the wire hydraulic crimping machine involved in the patents not limited to the above examples. The aforementioned power source (i.e., "power head" or "hydraulic station") includes a gasoline engine (also called "engine"), an oil pump, an oil tank and a reversing valve, and the aforementioned hydraulic pliers are connected to the aforementioned reversing valve through two oil pipes. Since the crimping principle of the wire can be specifically referred to the aforementioned patent documents such as CN2742641Y, the applicant will not elaborate on it.

[0005] It is well known that in the process of power line construction such as wiring, maintenance, and inspection, in addition to the aforementioned crimping of the wires, there is often the need to ring-cut the wires. For example, after completing the wiring between places A and B, it is necessary to ring-cut the terminal and the overhead open wires that have been withdrawn from the coil. The so-called ring-cutting is to completely cut off the entire bare wire from the outside to the inside, and more specifically, to cut off the aluminum stranded wire and the steel core wire together.

[0006] The existing technology usually uses separately equipped tools such as hydraulic shears to implement cutting. Since there is no structural correlation between the hydraulic shears and the wire hydraulic crimping machine, on the one hand, it leads to a large variety of power construction tools and their scattering, which brings certain troubles to daily maintenance work, such as easy loss. On the other hand, due to the structural design of the hydraulic shears themselves, it is difficult to reliably control the wires during the cutting process, resulting in irregular incisions. On the other hand, the operation is relatively cumbersome. Based on the above factors, it is necessary to make reasonable improvements, and the technical solution to be introduced below is produced in this context. Utility Model Content

[0007] The task of the utility model is to provide a wire ring cutting device for a wire hydraulic crimping machine, which is helpful to facilitate daily maintenance to avoid the loss of power construction tools, to reliably control the wires during the wire cutting process to ensure a round incision, and to reflect the convenience of operation to reduce the construction work intensity of construction personnel.

[0008] The task of the utility model is accomplished in this way. A wire ring cutting device for a wire hydraulic crimping machine, the wire hydraulic crimping machine includes a power source and a hydraulic pliers, the power source includes a traveling frame, a gasoline engine arranged on the left side of the traveling frame and equipped with a gasoline tank and a cooling water tank on the upper part, a hydraulic oil tank arranged on the right side of the traveling frame, a hydraulic oil pump connected to the gasoline engine and driven by the gasoline engine and arranged in the hydraulic oil tank, and a reversing control valve arranged on the upper part of the hydraulic oil tank and connected to the hydraulic oil pump oil circuit, the hydraulic pliers are accompanied by the power source in the use state , The hydraulic oil cylinder has a plurality of upper and lower parts, and the upper and lower parts are connected to the hydraulic oil cylinder of the hydraulic oil cylinder with a plurality of oil inlet and return pipes. The hydraulic oil cylinder has a plurality of upper and lower part, and the upper and lower parts are connected to the hydraulic oil cylinder of the hydraulic oil cylinder with a plurality of oil inlet and return pipes. The hydraulic oil cylinder has a plurality of upper and lower part, and the upper and lower parts are connected to the hydraulic oil cylinder of the hydraulic oil cylinder with a plurality of oil inlet and return pipes. After derrick hoists and puts in place, stamp fixedly derrick of derrick of derrick pin, then, hydraulic oil pipe, is closed by hydraulic oil pipe, and hydraulic oil pipe, and hydraulic oil pipe, and hydraulic oil pipe respectively have been set up on derrick of derrick pin, and hydraulic oil pipe respectively has been set up on derrick of derrick pin. The end is supported on the side of the top wall of the cylinder body of the circular cutting hydraulic cylinder facing the cylinder body cavity, the oil inlet and return holes of the circular cutting hydraulic cylinder are communicated with the cylinder body cavity located in the lower area of ​​the piston of the cylinder column of the circular cutting hydraulic cylinder, the circular cutting knife holder and the circular cutting knife are arranged on the top of the cylinder body of the circular cutting hydraulic cylinder, the upper end of the cylinder column of the circular cutting hydraulic cylinder is fixed to the lower part of the circular cutting knife through the cylinder column yield hole opened in the central position of the cylinder body of the circular cutting hydraulic cylinder; a circular cutting hydraulic cylinder oil inlet and return pipeline interface is added to the reversing control valve, and the oil inlet and return pipelines of the circular cutting hydraulic cylinder are connected to the oil inlet and return pipeline interface of the circular cutting hydraulic cylinder.

[0009] In the utility model, a lower cylinder body stabilizing support seat is fixed at the bottom of the lower cylinder body of the circular cutting hydraulic oil cylinder, which is used to stably support the lower cylinder body of the circular cutting hydraulic oil cylinder longitudinally on the ground when in use; a lower cylinder body outer thread is formed on the upper end outer wall of the lower cylinder body of the circular cutting hydraulic oil cylinder, and an upper cylinder body inner thread is formed on the lower end inner wall of the upper cylinder body of the circular cutting hydraulic oil cylinder, and the upper cylinder body thread is threadedly fixed to the lower cylinder body thread.

[0010] In the utility model, a left connecting ear of the upper cylinder body and a right connecting ear of the upper cylinder body extend upward from the top of the upper cylinder body of the circumferential cutting hydraulic oil cylinder. The left connecting ear of the upper cylinder body and the right connecting ear of the upper cylinder body are respectively spaced 180° apart in the circumferential direction around the top of the upper cylinder body of the circumferential cutting hydraulic oil cylinder and are in a face-to-face corresponding state. The cylinder column clearance hole corresponds to between the left and right connecting ears of the upper cylinder body; the circumferential cutting tool holder together with the circumferential cutting tool is connected to the left connecting ear of the upper cylinder body and the right connecting ear of the upper cylinder body at the top of the upper cylinder body of the circumferential cutting hydraulic oil cylinder.

[0011] In the utility model, a circular cutting blade movable knife sliding groove corresponding to each other is formed on the opposite sides of the left connecting ear of the upper cylinder body and the right connecting ear of the upper cylinder body; a circular cutting movable knife matching fixing groove is formed on the top of the cylinder column of the circular cutting hydraulic oil cylinder; an upper cylinder body left connecting ear pin hole is provided on the left connecting ear of the upper cylinder body, and an upper cylinder body right connecting ear pin hole is provided on the right connecting ear of the upper cylinder body; the circular cutting tool holder includes a front left clamping block, a front right clamping block, a rear left clamping block and a rear right clamping block, the front left clamping block is located at the front side of the left connecting ear of the upper cylinder body, and the front left clamping block bolt holes are spaced apart in the height direction of the front left clamping block, and the front right clamping block is located at the front side of the left connecting ear of the upper cylinder body. The front side of the right connecting ear of the upper cylinder body, and the front right clamp block bolt holes are spaced apart in the height direction of the front right clamp block, the rear left clamp block is located at the rear side of the left connecting ear of the upper cylinder body, and the rear left clamp block bolt holes are spaced apart in the height direction of the rear left clamp block, the rear right clamp block is located at the rear side of the right connecting ear of the upper cylinder body, and the rear right clamp block bolt holes are spaced apart in the height direction of the rear right clamp block; the annular cutting knife includes an annular cutting static knife and an annular cutting movable knife, the annular cutting static knife is located above the annular cutting movable knife, the annular cutting static knife left fixing bolt passing holes are spaced apart in the height direction of the left side of the annular cutting static knife, and the annular cutting static knife right fixing bolt passing holes are spaced apart in the height direction of the right side of the annular cutting static knife, and A left pad is arranged between the left rear side of the circular cutting static knife and the rear left clamping block, and a right pad is arranged between the right rear side of the circular cutting static knife and the rear right clamping block. A left pad hole is provided on the left pad at a position corresponding to the bolt hole of the rear left clamping block, and a right pad hole is provided on the right pad at a position corresponding to the bolt hole of the rear right clamping block. A group of left fixing bolts of the circular cutting static knife sequentially pass through the front left clamping block bolt hole, the left fixing bolt through hole of the circular cutting static knife, the left pad hole and the bolt hole of the rear left clamping block and are locked by a left locking nut screwed on the end of the left fixing bolt of the circular cutting static knife. A group of right fixing bolts of the circular cutting static knife sequentially pass through the front right clamping block bolt hole, the circular cutting static knife The right fixing bolt passes through the hole, the right pad hole and the rear right clamp block bolt hole and is locked by the right locking nut screwed on the end of the right fixing bolt of the circumferential cutting static knife. The left and right sides of the circumferential cutting movable knife respectively slide up and down with the circumferential cutting blade movable knife sliding groove, and the lower middle part of the circumferential cutting movable knife is fixed with the circumferential cutting movable knife matching fixing groove at the top of the circumferential cutting hydraulic cylinder column. The lower parts of the front left clamp block and the rear left clamp block are connected to the left connecting ear of the upper cylinder body through the left pin shaft at the position corresponding to the pin hole of the left connecting ear of the upper cylinder body, and the lower parts of the front right clamp block and the rear right clamp block are connected to the right connecting ear of the upper cylinder body through the right pin shaft at the position corresponding to the pin hole of the right connecting ear of the upper cylinder body.

[0012] In the utility model, the annular cutting static knife has an annular cutting static knife blade, and the annular cutting static knife blade faces downward, and the annular cutting movable knife has an annular cutting movable knife blade, and the annular cutting movable knife blade faces upward.

[0013] In the utility model, the shapes of the circular cutting static knife blade and the circular cutting dynamic knife blade are respectively semicircular arc-shaped, and they cooperate with each other up and down to form a scissor-shaped effect.

[0014] In the utility model, walking wheels are arranged at the bottom of the walking frame.

[0015] In the utility model, the reversing control valve has a first operating handle for controlling the oil inlet and return oil of the upper and lower oil inlet and return pipe interfaces of the hydraulic pliers and a second operating handle for controlling the oil inlet and return pipe interfaces of the circumferential cutting hydraulic cylinder.

[0016] In the utility model, the reversing control valve further has a spare oil inlet and return pipe interface, and the spare oil inlet and return pipe interface is controlled by the second operating handle.

[0017] In the utility model, a pressure gauge for revealing the pressure of the hydraulic oil is arranged on the upper part of the hydraulic oil tank.

[0018] The technical effect of the technical solution provided by the utility model is that: since the wire ring cutting device composed of the ring cutting hydraulic cylinder, the ring cutting knife holder and the ring cutting knife can be accompanied by the wire hydraulic crimping machine, it is helpful for daily convenient management and maintenance to avoid loss; since the wire hydraulic crimping machine is equipped with a wire ring cutting device with a reasonable structure, it is beneficial to reliably control the wire during the wire cutting process to ensure that the incision is round; since the wire ring cutting device is small in size, light in weight and easy to operate, it can reduce the construction work intensity of construction personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of an embodiment of the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the right side of the power source shown;

[0021] Figure 3 for Figure 1 A cross-sectional view of a hydraulic mechanism for cutting a conductor through a cutting device;

[0022] Figure 4 for Figure 1 A three-dimensional assembly structure diagram of the ring cutting tool holder of the wire ring cutting device shown;

[0023] Figure 5 for Figure 4 The structure diagram of the wire ring cutting device after the ring cutting tool holder is assembled is shown. DETAILED DESCRIPTION

[0024] The specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings, but the description of the embodiments is not a limitation of the technical solution. Any changes in form rather than substance based on the concept of the present invention should be regarded as the protection scope of the present invention.

[0025] In the following description, all possible concepts of up, down, left, right, front and back directions or orientations are based on Figure 1 The position state is taken as an example, and therefore it cannot be understood as a special limitation on the technical solution provided by the utility model.

[0026] See also Figure 1 , showing a power source 1 and a hydraulic clamp 2 (also referred to as "hydraulic clamp" or "crimping clamp", the same below) of the structural system of the wire hydraulic crimping machine, the power source 1 includes a traveling frame 11, a gasoline engine 12 (referred to as "gasoline engine") arranged on the left side of the traveling frame 11 and equipped with a gasoline tank 121 and a cooling water tank 122 on the upper part, a hydraulic oil tank 13 arranged on the right side of the traveling frame 11, a hydraulic oil pump 14 connected to the gasoline engine 12 and driven by the gasoline engine 12 and arranged in the hydraulic oil tank 13, and a reversing control valve 15 arranged on the upper part of the hydraulic oil tank 13 and connected to the oil circuit of the hydraulic oil pump 14. The aforementioned hydraulic clamp 2 accompanies the aforementioned power source 1 in a state of use, and the hydraulic clamp upper oil inlet and return pipe 21 and the hydraulic clamp lower oil inlet and return pipe 22 of the hydraulic clamp 2 are respectively connected to the hydraulic clamp upper and lower oil inlet and return pipe interfaces 151 and 152 of the reversing control valve 15 in a state of use.

[0027] Since the more specific structure and working principle of the power source 1 and the hydraulic pliers 2 mentioned above belong to the prior art, for example, reference may be made to, but not limited to, the patent documents mentioned by the applicant in the above background technology column, and in particular, they can be fully understood by reading these patent documents, and thus the applicant will not elaborate on them.

[0028] The technical key points of the technical solution provided by the utility model are as follows: the structural system of the wire cutting device is shown, the cutting hydraulic mechanism 3, the cutting knife frame 4 and the cutting knife 5, the cutting hydraulic mechanism 3 includes a cutting hydraulic cylinder lower cylinder body 31, a cutting hydraulic cylinder upper cylinder body 32 and a cylinder column reset action spring 33, and a cutting hydraulic cylinder inlet and return pipe interface 311 is provided on the lower side of the cutting hydraulic cylinder lower cylinder body 31. When in use, the cutting hydraulic cylinder inlet and return pipe interface 311 extends to one end outside the cutting hydraulic cylinder lower cylinder body 31. The oil inlet and return pipe 3111 of the circular cutting hydraulic oil cylinder is connected with the hydraulic oil circuit of the aforementioned reversing control valve 15. One end of the oil inlet and return pipe interface 311 of the circular cutting hydraulic oil cylinder facing the lower cylinder body 31 of the circular cutting hydraulic oil cylinder is communicated with the oil inlet and return hole 312 of the circular cutting hydraulic oil cylinder opened in the lower cylinder body base of the lower cylinder body 31 of the circular cutting hydraulic oil cylinder. The lower end inner wall of the upper cylinder body 32 of the circular cutting hydraulic oil cylinder is threadedly fixed with the upper end outer wall of the lower cylinder body 31 of the circular cutting hydraulic oil cylinder. The cylinder column reset action spring 33 is sleeved on the upper and lower cylinder bodies 32 and 31 of the circular cutting hydraulic oil cylinder. On the cylinder column 35 of the circular cutting hydraulic oil cylinder in the cylinder cavity 34 of the same structure, the lower end of the cylinder column reset spring 33 is supported on the circular cutting hydraulic oil cylinder cylinder column piston 351 arranged at the lower end of the circular cutting hydraulic oil cylinder cylinder column 35, and the upper end of the cylinder column reset spring 33 is supported on the top wall of the cylinder body 32 of the circular cutting hydraulic oil cylinder facing the cylinder cavity 34. The aforementioned circular cutting hydraulic oil cylinder oil return hole 312 is connected to the aforementioned cylinder cavity 34 located in the lower area of ​​the circular cutting hydraulic oil cylinder cylinder column piston 351. The circular cutting tool holder 4 together with the circular cutting tool 5 is arranged at the front At the top of the upper cylinder body 32 of the circular cutting hydraulic cylinder, the upper end of the aforementioned circular cutting hydraulic cylinder column 35 is fixed to the lower part of the aforementioned circular cutting knife 5 via the cylinder column yielding hole 321 opened in the central position of the upper cylinder body 32 of the circular cutting hydraulic cylinder, that is, the lower part of the circular cutting knife 5 is fixed to the upper end of the circular cutting hydraulic cylinder column 35; a circular cutting hydraulic cylinder oil inlet and return pipeline interface 153 is additionally provided on the aforementioned reversing control valve 15, and the aforementioned circular cutting hydraulic cylinder oil inlet and return pipeline 3111 is connected to the circular cutting hydraulic cylinder oil inlet and return pipeline interface 153.

[0029] According to professional common sense, with respect to the aforementioned cylinder cavity 34, the area or space below the piston 351 of the annular hydraulic oil cylinder is called the piston lower cavity, and the area or space above the piston 351 of the annular hydraulic oil cylinder is called the piston upper cavity. Since the present application adopts a unique structural design and adopts a single annular hydraulic oil cylinder oil inlet and return pipe interface 311, the aforementioned piston lower cavity is essentially the oil inlet and return cavity of the lower part of the cylinder cavity 34. Since there is no hydraulic oil in the piston upper cavity, the return of the piston is achieved by the restoring force of the cylinder column reset action spring 33. In the same example, the rise of the annular hydraulic oil cylinder cylinder piston 351 is achieved by the hydraulic oil pushing the annular hydraulic oil cylinder cylinder piston 351 to overcome the reaction force (reaction force) of the cylinder column reset action spring 33. Figure 3The figure shows a sealing ring 3511 which is arranged on (i.e., sleeved on) the piston 351 of the annular hydraulic cylinder. The sealing ring 3511 forms an up-and-down sliding sealing fit with the inner wall of the lower cylinder body 31 of the annular hydraulic cylinder. That is to say, the sealing ring 3511 forms an up-and-down sliding sealing fit with the cylinder body cavity wall of the cylinder body cavity 34 located below the annular hydraulic cylinder cylinder piston 351.

[0030] See also Figure 3 And combined with Figure 1 A lower cylinder body stabilizing support seat 313 is fixed at the bottom of the lower cylinder body 31 of the aforementioned circular cutting hydraulic cylinder, which is used to stably support the lower cylinder body 31 of the circular cutting hydraulic cylinder longitudinally on the floor when in use; a lower cylinder body outer thread 314 is formed on the upper end outer wall of the lower cylinder body 31 of the aforementioned circular cutting hydraulic cylinder, and an upper cylinder body inner thread 322 is formed on the lower end inner wall of the upper cylinder body 32 of the aforementioned circular cutting hydraulic cylinder, and the upper cylinder body inner thread 322 is threadedly fixed to the lower cylinder body outer thread 314.

[0031] See also Figures 4 to 5 And combined with Figure 3 , a left connecting ear 323 and a right connecting ear 324 of the upper cylinder body extend upward from the top of the upper cylinder body 32 of the aforementioned ring-cut hydraulic oil cylinder. The left connecting ear 323 and the right connecting ear 324 of the upper cylinder body are 180° apart in the circumferential direction around the top of the upper cylinder body 32 of the ring-cut hydraulic oil cylinder and are in a face-to-face corresponding state. The aforementioned cylinder column clearance hole 321 corresponds to the left and right connecting ears 323 and 324 of the upper cylinder body ( Figure 5 The aforementioned circumferential cutting tool holder 4 together with the aforementioned circumferential cutting tool 5 are connected to the aforementioned upper cylinder body left connecting ear 323 and the upper cylinder body right connecting ear 324 at the top of the aforementioned circumferential cutting hydraulic oil cylinder upper cylinder body 32.

[0032] In the present invention, a circular cutting blade movable knife sliding groove 325 (325) corresponding to each other is formed on the opposite sides of the upper cylinder left connecting ear 323 and the upper cylinder right connecting ear 324. Figure 4 A ring cutting movable knife matching fixing groove 352 is formed at the top of the aforementioned ring cutting hydraulic oil cylinder column 35 ( Figure 5The left connecting ear 323 of the upper cylinder body is provided with a pin hole 3231 of the left connecting ear of the upper cylinder body, and the right connecting ear 324 of the upper cylinder body is provided with a pin hole 3241 of the right connecting ear of the upper cylinder body; the aforementioned circumcision tool holder 4 comprises a front left clamping block 41, a front right clamping block 42, a rear left clamping block 43 and a rear right clamping block 44, the front left clamping block 41 is located at the front side of the left connecting ear 323 of the upper cylinder body, and the front left clamping block bolt holes 411 are spaced apart in the height direction of the front left clamping block 41 The front right clamp block 42 is located at the front side of the right connecting ear 324 of the upper cylinder body, and the front right clamp block bolt holes 421 are spaced apart in the height direction of the front right clamp block 42; the rear left clamp block 43 is located at the rear side of the left connecting ear 323 of the upper cylinder body, and the rear left clamp block bolt holes 431 are spaced apart in the height direction of the rear left clamp block 43; the rear right clamp block 44 is located at the rear side of the right connecting ear 324 of the upper cylinder body, and the rear right clamp block bolt holes 441 are spaced apart in the height direction of the rear right clamp block 44;The aforementioned circular cutting knife 5 comprises a circular cutting static knife 51 and a circular cutting moving knife 52. The circular cutting static knife 51 is located above the circular cutting moving knife 52. A circular cutting static knife left fixing bolt through hole 511 is provided at intervals in the height direction of the left side of the circular cutting static knife 51, and a circular cutting static knife right fixing bolt through hole 512 is provided at intervals in the height direction of the right side of the circular cutting static knife 51. A left cushion block 513 is provided between the left rear side of the circular cutting static knife 51 and the rear left clamp block 43, and a right cushion block 51 is provided between the right rear side of the circular cutting static knife 51 and the rear right clamp block 44. 4. A left pad hole 5131 is provided on the left pad 513 at a position corresponding to the rear left clamping block bolt hole 431, and a right pad hole 5141 is provided on the right pad 514 at a position corresponding to the rear right clamping block bolt hole 441. A group of left fixing bolts 45 of the circular cutting static knife pass through the front left clamping block bolt hole 411, the left fixing bolt hole 511 of the circular cutting static knife, the left pad hole 5131 and the rear left clamping block bolt hole 431 in sequence and are locked by a left locking nut 451 screwed on the end of the left fixing bolt 45 of the circular cutting static knife. A group of right fixing bolts 46 of the circular cutting static knife pass through the front right clamping block bolt hole 421, the right fixing bolt through hole 512 of the circular cutting static knife, the right pad hole 5141 and the rear right clamping block bolt hole 441 in sequence and are locked by the right locking nut 461 screwed on the end of the right fixing bolt 46 of the circular cutting static knife. As a preferred solution, the left and right sides of the circular cutting movable knife 52 are respectively slidably matched with the aforementioned circular cutting blade movable knife sliding groove 325, and the lower middle part of the circular cutting movable knife 52 is fixedly matched with the circular cutting movable knife at the top of the aforementioned circular cutting hydraulic cylinder column 35. The groove 352 is fixed, and preferably a screw 522 is used to fix the lower middle part of the circular cutting movable knife 52 to the circular cutting hydraulic cylinder column 35. The lower part of the front left clamping block 41 and the lower part of the rear left clamping block 43 are connected to the left connecting ear 323 of the upper cylinder body through the left pin shaft 47 at the position corresponding to the left connecting ear pin hole 3231 of the upper cylinder body, and the lower part of the front right clamping block 42 and the lower part of the rear right clamping block 44 are connected to the right connecting ear 324 of the upper cylinder body through the right pin shaft 48 at the position corresponding to the right connecting ear pin hole 3241 of the upper cylinder body. By the above description and in combination; Figures 3 to 5It can be seen from the diagram that the lowest front left clamp block bolt hole in a group of front left clamp block bolt holes 411 located on the aforementioned front left clamp block 41 corresponds to the front side of the left connecting ear pin hole 3231 of the upper cylinder body, and thus the lowest front left clamp block bolt hole substantially plays the role of the front left clamp block pin shaft passing hole (also called "pivot hole") for the left pin shaft 47 to pass through; the lowest rear left clamp block bolt hole in a group of rear left clamp block bolt holes 431 opened on the rear left clamp block 43 also corresponds to the rear side of the left connecting ear pin hole 3231 of the upper cylinder body, and thus the lower rear left clamp block bolt hole substantially plays the role of the rear left clamp block pin shaft passing hole (also called "pivot hole") for the left pin shaft 47 to pass through. By the same token, the lowest front right clamp block bolt hole in a group of front right clamp block bolt holes 421 on the front right clamp block 42 and the lowest rear right clamp block bolt hole in a group of rear right clamp block bolt holes 441 on the rear right clamp block 44 respectively correspond to the front and rear sides of the right connecting ear pin hole 3241 of the upper cylinder body, and thus essentially serve as through holes (also called "pivot holes") for the right pin shaft 48 to pass through.

[0033] Depend on Figure 1 and Figures 3 to 5 As shown, the aforementioned annular cutting static knife 51 has an annular cutting static knife blade 515, and the annular cutting static knife blade 515 faces downward, and the aforementioned annular cutting movable knife 52 has an annular cutting movable knife blade 521, and the annular cutting movable knife blade 521 faces upward.

[0034] The shapes of the aforementioned annular cutting static knife blade 515 and the annular cutting moving knife blade 521 are semicircular (i.e., semicircular arc), and they cooperate with each other up and down to form a scissor-shaped effect. Specifically, the annular cutting static knife blade 515 is in a C-shape with the cavity opening downward, and the annular cutting moving knife blade 521 is in a C-shape with the cavity opening upward. The former is an opening or a semicircular arc with the cavity opening downward, and the latter is an opening or a semicircular arc with the cavity opening upward.

[0035] See also Figure 2 And combined with Figure 1As shown in the two figures, a travel wheel 111 is provided at the bottom of the travel frame 11. There are four travel wheels 111, which are respectively distributed at the four corners of the travel frame 11. The reversing control valve 15 has a first operating handle 155 for controlling the oil inlet and return of the upper and lower oil inlet and return pipe interfaces 151 and 152 of the hydraulic clamp and a second operating handle 156 for controlling the oil inlet and return pipe interface 153 of the annular hydraulic oil cylinder. The reversing control valve 15 also has a spare oil inlet and return pipe interface 154, which is controlled by the second operating handle 156. The second operating handle 156 is added accordingly due to the addition of the oil inlet and return pipe interface 153 and the spare oil inlet and return pipe interface 154 of the annular hydraulic oil cylinder. The spare oil inlet and return pipe interface 154 mentioned here can be used to connect a wire half-cutting device, such as a wire half-cutting device that only cuts off the aluminum strands on the outside of the wire, but does not cut off the steel strands in the center. Compared with the present invention, the present invention faces a complete cutting, that is, the steel strand (steel core wire) and the aluminum strand wrapped around the steel strand are cut off together.

[0036] As for the aforementioned first operating handle 155, since it controls the upper and lower oil return pipe interfaces 151 and 152 of the hydraulic pliers, when the first operating handle 155 is moved to the left, oil flows out of the upper oil return pipe interface 151 of the hydraulic pliers, and oil flows into the lower oil return pipe 22 of the hydraulic pliers, and oil returns from the upper oil return pipe 21 of the hydraulic pliers, and oil flows into the lower oil return pipe interface 152 of the hydraulic pliers; when the first operating handle 155 is moved to the right, it is the opposite of the aforementioned, and when the first operating handle 155 is moved to the middle, the hydraulic pliers 2 is in a pressure maintaining state.

[0037] As for the aforementioned second operating handle 156, when the second operating handle 156 is turned to the left, the oil inlet and return pipe interface 153 of the annular hydraulic oil cylinder discharges oil, the annular hydraulic oil cylinder column 35 moves upward, and the spare oil inlet and return pipe interface 154 remains in its original state (i.e., neither discharges oil nor returns oil); when the second operating handle 156 is turned to the right, the spare oil inlet and return pipe interface 154 discharges oil, while the annular hydraulic oil cylinder oil inlet and return pipe interface 153 remains in its original state (neither discharges oil nor discharges oil), and when the second operating handle 156 is turned to the state of being centered, the annular hydraulic oil cylinder oil inlet and return pipe interface 153 and the spare oil inlet and return pipe interface 154 remain in their original state (i.e., both are in a non-working state). The spare oil inlet and return pipe interface 154 mentioned here is assumed to be equipped with the aforementioned wire half-cutting device.

[0038] Depend on Figure 1 As shown, a pressure gauge 131 for indicating the pressure of the hydraulic oil is provided on the upper part of the hydraulic oil tank 13.

[0039] When the steel strands (i.e., "steel core wires") and aluminum strands of the conductor are to be cut, the aforementioned left pin 47 and / or right pin 48 is pulled out, and the conductor is introduced (pulled) between the circumferential cutting static knife 51 and the circumferential cutting movable knife 52, and preferably a limiting component such as a clamp is used to limit the conductor on both sides to prevent the aluminum strands of the conductor from spreading out at the incision site, and then the aforementioned left pin 47 and / or right pin 48 is returned. Under the operation of the power source 1 and the operation of the aforementioned second operating handle 156 by the construction personnel, oil is discharged from the oil inlet and return pipe interface 153 of the circular cutting hydraulic cylinder, so that the hydraulic oil enters the structural system of the circular cutting hydraulic mechanism 3 below the aforementioned circular cutting hydraulic cylinder cylinder piston 351 through the circular cutting hydraulic cylinder oil inlet and return pipe 3111 and pushes the circular cutting hydraulic cylinder cylinder piston 351 to move upward together with the circular cutting movable knife 52 under the reaction force of the cylinder column reset spring 33. When the upward displacement exceeds the left and right connecting ears 323 and 324 of the upper cylinder body, the circular cutting movable knife 52 moves upward along the back of the circular cutting static knife 51 until the wire is cut off. After cutting, the second operating handle 156 is pulled to the center position. At this time, under the restoring force of the aforementioned cylinder column reset spring 33, the circular cutting hydraulic cylinder cylinder piston 351 moves downward and resets. The hydraulic oil previously located below the piston 351 of the ring cutting hydraulic oil cylinder passes through the ring cutting hydraulic oil cylinder oil inlet and return hole 312, the ring cutting hydraulic oil cylinder oil inlet and return pipe interface 311, the ring cutting hydraulic oil cylinder oil inlet and return pipeline 3111, the ring cutting hydraulic oil cylinder oil inlet and return pipeline interface 153 and the reversing control valve 15 until it returns to the hydraulic oil tank 13. As mentioned above: the ring cutting static knife blade 515 and the ring cutting moving knife blade 521 form a scissor-shaped effect with each other, the aforementioned cutting is actually shearing, and similarly, the wire ring cutting device can also be correspondingly called a wire ring shearing device.

[0040] In summary, the technical solution provided by the utility model makes up for the shortcomings of the existing technology, successfully completes the invention task, and faithfully realizes the technical effects stated by the applicant in the technical effect column above.

Claims

1. A wire ring cutting device for a wire hydraulic crimping machine, the wire hydraulic crimping machine comprising a power source (1) and a hydraulic pliers (2), the power source (1) comprising a traveling frame (11), a gasoline engine (12) arranged on the left side of the traveling frame (11) and equipped with a gasoline tank (121) and a cooling water tank (122) on the upper part, a hydraulic oil tank (13) arranged on the right side of the traveling frame (11), a hydraulic oil tank (13) connected to the gasoline engine (12) and driven by the gasoline engine (12) and arranged A hydraulic oil pump (14) in a hydraulic oil tank (13) and a reversing control valve (15) arranged on the upper part of the hydraulic oil tank (13) and connected to the oil circuit of the hydraulic oil pump (14), the hydraulic pliers (2) accompanying the power source (1) in a use state, and the hydraulic pliers upper oil inlet and return pipe (21) and the hydraulic pliers lower oil inlet and return pipe (22) of the hydraulic pliers (2) are respectively connected to the hydraulic pliers upper and lower oil inlet and return pipe interfaces (151, 152) of the reversing control valve (15) in a use state, characterized in that: The wire circumcision device comprises a circumcision hydraulic mechanism (3), a circumcision knife holder (4) and a circumcision knife (5). The circumcision hydraulic mechanism (3) comprises a circumcision hydraulic oil cylinder lower cylinder body (31), a circumcision hydraulic oil cylinder upper cylinder body (32) and a cylinder column reset action spring (33). A circumcision hydraulic oil cylinder inlet and return pipe interface (311) is arranged on the lower side of the circumcision hydraulic oil cylinder lower cylinder body (31). In the use state, the circumcision hydraulic oil cylinder inlet and return pipe interface (311) extends to one end outside the circumcision hydraulic oil cylinder lower cylinder body (31) through the circumcision hydraulic oil cylinder. The oil inlet and return pipeline (3111) is connected to the hydraulic oil circuit of the reversing control valve (15); one end of the oil inlet and return pipeline interface (311) of the circular cutting hydraulic oil cylinder facing the lower cylinder body (31) of the circular cutting hydraulic oil cylinder is communicated with the oil inlet and return hole (312) of the circular cutting hydraulic oil cylinder provided in the lower cylinder body (31) of the circular cutting hydraulic oil cylinder; the lower end inner wall of the upper cylinder body (32) of the circular cutting hydraulic oil cylinder is threadedly fixed to the upper end outer wall of the lower cylinder body (31) of the circular cutting hydraulic oil cylinder; the cylinder column reset action spring (33) is sleeved on the joint formed by the upper and lower cylinder bodies (32, 31) of the circular cutting hydraulic oil cylinder. On the cylinder column (35) of the circular cutting hydraulic oil cylinder in the cylinder body cavity (34), the lower end of the cylinder column reset spring (33) is supported on the circular cutting hydraulic oil cylinder cylinder column piston (351) arranged at the lower end of the cylinder column (35) of the circular cutting hydraulic oil cylinder, and the upper end of the cylinder column reset spring (33) is supported on the top wall of the cylinder body (32) of the circular cutting hydraulic oil cylinder facing the cylinder body cavity (34), and the circular cutting hydraulic oil cylinder oil inlet and return hole (312) is connected to the cylinder body cavity (34) located in the lower area of ​​the circular cutting hydraulic oil cylinder cylinder column piston (351). The circular cutting knife holder (4) together with the circular cutting knife (5) is arranged on the top of the upper cylinder body (32) of the circular cutting hydraulic oil cylinder, and the upper end of the cylinder column (35) of the circular cutting hydraulic oil cylinder is fixed to the lower part of the circular cutting knife (5) through the cylinder column clearance hole (321) provided at the central position of the upper cylinder body (32) of the circular cutting hydraulic oil cylinder; a circular cutting hydraulic oil cylinder oil inlet and return pipeline interface (153) is additionally provided on the reversing control valve (15), and the circular cutting hydraulic oil cylinder oil inlet and return pipeline (3111) is connected to the circular cutting hydraulic oil cylinder oil inlet and return pipeline interface (153).

2. The wire ring cutting device for a wire hydraulic crimping machine according to claim 1, characterized in that: A lower cylinder body stabilizing support seat (313) is fixed at the bottom of the lower cylinder body (31) of the circular cutting hydraulic oil cylinder for stably supporting the lower cylinder body (31) of the circular cutting hydraulic oil cylinder longitudinally on the ground when in use; a lower cylinder body outer thread (314) is formed on the upper end outer wall of the lower cylinder body (31) of the circular cutting hydraulic oil cylinder, and an upper cylinder body inner thread (322) is formed on the lower end inner wall of the upper cylinder body (32) of the circular cutting hydraulic oil cylinder, and the upper cylinder body inner thread (322) is threadedly fixed to the lower cylinder body outer thread (314).

3. The wire ring cutting device for a wire hydraulic crimping machine according to claim 1, characterized in that: A left connecting ear (323) and a right connecting ear (324) of the upper cylinder body extend upward from the top of the upper cylinder body (32) of the circumferential cutting hydraulic oil cylinder. The left connecting ear (323) and the right connecting ear (324) of the upper cylinder body are 180 degrees apart in the circumferential direction around the top of the upper cylinder body (32) of the circumferential cutting hydraulic oil cylinder and are in a face-to-face corresponding state. The cylinder column clearance hole (321) corresponds to between the left and right connecting ears (323, 324) of the upper cylinder body. The circumferential cutting knife holder (4) together with the circumferential cutting knife (5) are connected to the left connecting ear (323) and the right connecting ear (324) of the upper cylinder body at the top of the upper cylinder body (32) of the circumferential cutting hydraulic oil cylinder.

4. The wire ring cutting device for a wire hydraulic crimping machine according to claim 3, characterized in that: A circular cutting blade movable knife sliding groove (325) corresponding to each other is formed on the opposite sides of the left connecting ear (323) of the upper cylinder body and the right connecting ear (324) of the upper cylinder body; a circular cutting movable knife matching fixing groove (352) is formed on the top of the circular cutting hydraulic oil cylinder column (35); an upper cylinder body left connecting ear pin hole (3231) is provided on the left connecting ear (323) of the upper cylinder body, and an upper cylinder body right connecting ear pin hole (3241) is provided on the right connecting ear (324) of the upper cylinder body; the circular cutting blade holder (4) comprises a front left clamping block (41), a front right clamping block (42), a rear left clamping block (43) and a rear right clamping block (44), wherein the front left clamping block (41) is located at the upper cylinder body The front right clamp block (42) is located at the front side of the right connecting ear (324) of the upper cylinder body, and front right clamp block bolt holes (421) are spaced apart in the height direction of the front right clamp block (42); the rear left clamp block (43) is located at the rear side of the left connecting ear (323) of the upper cylinder body, and rear left clamp block bolt holes (431) are spaced apart in the height direction of the rear left clamp block (43); the rear right clamp block (44) is located at the rear side of the right connecting ear (324) of the upper cylinder body, and rear right clamp block bolt holes (441) are spaced apart in the height direction of the rear right clamp block (44);The circular cutting knife (5) comprises a circular cutting static knife (51) and a circular cutting movable knife (52), the circular cutting static knife (51) is located above the circular cutting movable knife (52), a circular cutting static knife left fixing bolt through hole (511) is arranged at intervals on the left side of the circular cutting static knife (51) in the height direction, and a circular cutting static knife right fixing bolt through hole (512) is arranged at intervals on the right side of the circular cutting static knife (51) in the height direction, and a left pad (513) is arranged between the left rear side of the circular cutting static knife (51) and the rear left clamping block (43), and a left pad (513) is arranged between the right rear side of the circular cutting static knife (51) and the rear right clamping block (43). A right pad (514) is arranged between the blocks (44); a left pad hole (5131) is provided on the left pad (513) at a position corresponding to the bolt hole (431) of the rear left clamp block; a right pad hole (5141) is provided on the right pad (514) at a position corresponding to the bolt hole (441) of the rear right clamp block; a group of left fixing bolts (45) of the circular cutting static knife pass through the front left clamp block bolt hole (411), the left fixing bolt hole (511) of the circular cutting static knife, the left pad hole (5131) and the bolt hole (431) of the rear left clamp block in sequence and are rotated The left locking nut (451) mounted on the end of the left fixing bolt (45) of the circumferential cutting static knife is locked, and a group of right fixing bolts (46) of the circumferential cutting static knife pass through the front right clamping block bolt hole (421), the right fixing bolt passing hole (512) of the circumferential cutting static knife, the right pad hole (5141) and the rear right clamping block bolt hole (441) in sequence and are locked by the right locking nut (461) screwed on the end of the right fixing bolt (46) of the circumferential cutting static knife, and the left and right sides of the circumferential cutting movable knife (52) are respectively slidably matched with the circumferential cutting blade movable knife sliding groove (325) up and down, and the circumferential cutting movable knife (52) is locked. 2) is fixed to the ring cutting movable knife at the top of the ring cutting hydraulic oil cylinder column (35) by the fixing groove (352), the lower parts of the front left clamping block (41) and the rear left clamping block (43) are connected to the left connecting ear (323) of the upper cylinder body through the left pin shaft (47) at the position corresponding to the left connecting ear pin hole (3231) of the upper cylinder body, and the lower parts of the front right clamping block (42) and the rear right clamping block (44) are connected to the right connecting ear (324) of the upper cylinder body through the right pin shaft (48) at the position corresponding to the right connecting ear pin hole (3241) of the upper cylinder body. ; 5. The wire ring cutting device for a wire hydraulic crimping machine according to claim 4, characterized in that: The annular cutting static knife (51) has an annular cutting static knife blade (515), and the annular cutting static knife blade (515) faces downward, and the annular cutting movable knife (52) has an annular cutting movable knife blade (521), and the annular cutting movable knife blade (521) faces upward.

6. The wire ring cutting device for a wire hydraulic crimping machine according to claim 5, characterized in that: The shapes of the circular cutting static knife blade (515) and the circular cutting moving knife blade (521) are respectively semicircular arc-shaped, and cooperate with each other up and down to form a scissor-shaped effect.

7. The wire ring cutting device for a wire hydraulic crimping machine according to claim 1, characterized in that: A walking wheel (111) is arranged at the bottom of the walking frame (11).

8. The wire ring cutting device for a wire hydraulic crimping machine according to claim 1, characterized in that: The reversing control valve (15) comprises a first operating handle (155) for controlling the oil inlet and return of the upper and lower oil inlet and return pipe interfaces (151, 152) of the hydraulic clamp, and a second operating handle (156) for controlling the oil inlet and return pipe interface (153) of the annular cutting hydraulic cylinder.

9. The wire ring cutting device for a wire hydraulic crimping machine according to claim 8, characterized in that: The reversing control valve (15) also has a spare oil inlet and return pipe interface (154), and the spare oil inlet and return pipe interface (154) is controlled by the second operating handle (156).

10. The wire ring cutting device for a wire hydraulic crimping machine according to claim 1, characterized in that: A pressure gauge (131) for displaying the pressure of the hydraulic oil is arranged on the upper part of the hydraulic oil tank (13).

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