A crimping device for field erection of power cables

Abstract

The present invention relates to the technical field of power cable erection, and discloses a crimping device for field power cable erection, which includes an outer frame, a support base, a pressing mechanism, a circumcision mechanism, a pushing and pulling mechanism, a crimping mechanism, a lifting handle and a mobile power source. A support base is fixedly installed inside the outer frame, a positioning groove is provided on the support base, a pressing mechanism is fixedly installed on the support base, a circumcision mechanism is installed on the front side of the support base, a pushing and pulling mechanism is installed inside the outer frame on the front side of the support base, and a crimping mechanism is provided on the pushing and pulling mechanism. The present invention has various functions, that is, it can cut off the outer skin of the cable and can also tightly fix the cable joint to the cable core, is convenient to use, saves manpower, and has higher safety.

Description

Technical Field

[0001] The present invention relates to the technical field of power cable erection, and particularly to a crimping device for field power cable erection. Background Art

[0002] When building a power system, it is often necessary to erect a large number of cables in the wild. The coiled cables have no joints, and when installing cables in the wild, it is necessary to manually install cable joints at both ends of the cables. Currently, when installing a cable joint, a person first uses a tool to cut the outer skin of the cable. This process may cut the person's hand, which is somewhat dangerous. After the outer skin is cut, the person needs to pull off the outer skin to expose the core. Since the outer skin is tightly wrapped around the core, it is very laborious to pull it off manually. Finally, it is necessary to manually put the cable joint on the core and then use other tools to tightly crimp the joint to the core, which is rather troublesome. Therefore, in view of the above situation, there is an urgent need to develop a crimping device for field power cable erection with diverse functions, which can cut the outer skin of the cable and tightly press and fix the cable joint to the core of the cable, is convenient to use, saves manpower, and has higher safety, so as to overcome the deficiencies in current practical applications and meet the current requirements. Summary of the Invention

[0003] The purpose of the present invention is to provide a crimping device for field power cable erection to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A crimping device for field power cable erection includes an outer frame, a support base, a pressing mechanism, a circumferential cutting mechanism, a pushing and pulling mechanism, a crimping mechanism, a lifting handle, and a mobile power source. The support base is fixedly installed inside the outer frame. A positioning groove is provided on the support base. The pressing mechanism is fixedly installed on the support base. The circumferential cutting mechanism is installed on the front side of the support base. The pushing and pulling mechanism is installed inside the outer frame on the front side of the support base. The crimping mechanism is provided on the pushing and pulling mechanism. When in use, first pass the cable through the positioning groove, press the cable onto the support base through the pressing mechanism, then clamp the front end of the cable by the crimping mechanism. Then, cut off the wrapping layer outside the cable through the circumferential cutting mechanism. Then, drive the crimping mechanism to move forward through the pushing and pulling mechanism, and pull off the cut wrapping layer on the cable forward through the crimping mechanism, so that the core inside the cable is exposed. Then, put the cable joint on the core of the cable, drive the crimping mechanism to return by the pushing and pulling mechanism, and then squeeze the cable joint by the crimping mechanism so that the cable joint tightly fits onto the core of the cable.

[0006] Preferably, the pressing mechanism includes: a heightening frame, a first electric telescopic rod, and a pressing ring. The heightening frame is fixed on the support base. The first electric telescopic rod is fixedly installed on the heightening frame. The telescopic end of the first electric telescopic rod is fixedly connected to the pressing ring. The pressing ring is located directly above the positioning groove and is in a semi-circular ring shape.

[0007] Preferably, the circumferential cutting mechanism includes: a mounting sleeve, a first motor, a small gear, a large gear, a transfer plate, and a cutting mechanism. The mounting sleeve is fixedly installed on the front side of the support base. The first motor is fixedly installed inside the outer frame. A small gear is fixedly installed on the output shaft of the first motor. The large gear meshing with the small gear is arranged above the small gear. The large gear is rotatably connected to the outside of the mounting sleeve through a bearing. The transfer plate is fixedly connected to the large gear. The cutting mechanism is installed on the transfer plate.

[0008] Preferably, the cutting mechanism includes: a threaded sleeve, a rotating handle, a threaded rod, a lifting plate, a cutting blade, and a first limiting guide rod. The threaded sleeve is rotatably connected to the transfer plate. The rotating handle is fixedly installed on the outside of the threaded sleeve. The threaded rod passing through the threaded sleeve is installed inside the threaded sleeve. The lifting plate is fixed to the bottom of the threaded rod. The cutting blade is fixedly installed on the lower side of the lifting plate. The first limiting guide rod passing through the transfer plate is fixedly installed on the upper side of the lifting plate. The first limiting guide rod is slidably connected to the transfer plate. During use, a person rotates the rotating handle by hand. The rotation of the rotating handle drives the threaded sleeve to rotate. The rotation of the threaded sleeve drives the threaded rod to move downward. The threaded rod drives the lifting plate and the cutting blade to move downward, so that the cutting blade cuts into the outer skin of the cable. Then, the output shaft of the first motor drives the small gear to rotate. The rotation of the small gear drives the large gear to rotate. The rotation of the large gear drives the transfer plate to rotate. The rotation of the transfer plate drives the cutting mechanism to rotate, so that the cutting blade rotates around the cable for one circle, thereby cutting off the outer skin of the cable.

[0009] Preferably, the pushing and pulling mechanism includes: a second electric telescopic rod, a connecting block, a support plate, a slider, and a linear slide rail. Two second electric telescopic rods are fixedly installed inside the outer frame. The telescopic end of each second electric telescopic rod is fixedly connected to a connecting block. The connecting block is fixed to the support plate. Two sliders are fixedly installed at the bottom of the support plate. Each slider is slidably installed on a linear slide rail. The linear slide rail is fixedly installed inside the outer frame.

[0010] Preferably, the crimping mechanism includes: a second motor, a bidirectional screw, a first external thread, a second external thread, a first threaded block, a second threaded block, a crimping block, and a second limiting guide rod. The second motor is fixedly installed on the support plate. The bidirectional screw is rotatably connected to the support plate. The output shaft of the second motor is fixed to one end of the bidirectional screw. The left half of the bidirectional screw is provided with the first external thread, and the first threaded block that is matched with it is installed on the outside of the first external thread. The right half of the bidirectional screw is provided with the second external thread, and the second threaded block that is matched with it is installed on the outside of the second external thread. A crimping block is fixed to the upper sides of the first threaded block and the second threaded block. The crimping block is in a semi-circular ring shape. The two crimping blocks are arranged oppositely. A second limiting guide rod that is inserted into the support plate is fixed to the lower sides of the first threaded block and the second threaded block. The helix directions of the first external thread and the second external thread are opposite. When in use, the second motor drives the bidirectional screw to rotate. The rotation of the bidirectional screw drives the first threaded block and the second threaded block to move towards each other. The first threaded block and the second threaded block drive the two crimping blocks to move towards each other.

[0011] Preferably, the second limiting guide rod is slidably connected to the support plate, and a limiting sliding groove for the movement of the second limiting guide rod is provided on the support plate.

[0012] Preferably, the mobile power source is fixedly installed inside the outer frame. The first electric telescopic rod, the first motor, the second electric telescopic rod, and the second motor are all electrically connected to the mobile power source through wires.

[0013] Preferably, the lifting handle is fixedly installed on the top of the outer frame.

[0014] The beneficial effects of the present invention are as follows: When using the crimping device for field power cable erection, the cable is passed through the positioning groove, and then the pressing ring is driven by the first electric telescopic rod to move downward. The cable is pressed into the positioning groove by the pressing ring. Then, the second motor drives the bidirectional screw to rotate. The rotation of the bidirectional screw drives the first threaded block and the second threaded block to move towards each other. The first threaded block and the second threaded block drive the two crimping blocks to move towards each other, so that the two crimping blocks clamp the outer skin of the cable. Then, a person rotates the rotary handle by hand. The rotation of the rotary handle drives the threaded sleeve to rotate. The rotation of the threaded sleeve drives the threaded rod to move downward. The threaded rod drives the lifting plate and the cutting blade to move downward, so that the cutting blade cuts into the outer skin of the cable. Then, the output shaft of the first motor drives the small gear to rotate. The rotation of the small gear drives the large gear to rotate. The rotation of the large gear drives the adapter plate to rotate. The rotation of the adapter plate drives the slitting mechanism to rotate, so that the cutting blade rotates around the cable for one circle, thereby cutting off the outer skin of the cable. Then, the second electric telescopic rod drives the connecting block and the support plate to move forward. The support plate drives the crimping mechanism to move forward, so that the crimping mechanism pulls out the cut outer skin on the cable. Then, the crimping mechanism loosens the cable, so that the core of the cable is exposed. Then, the cable joint is sleeved on the core of the cable. The pushing and pulling mechanism drives the crimping mechanism to return to its position, and then the two crimping blocks approach each other, so that the two crimping blocks tightly fit the cable joint to the core of the cable. In summary, the present invention has diverse functions. It can cut off the outer skin of the cable and can also tightly press and fix the cable joint to the core of the cable. It is convenient to use, saves manpower, and has higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front structural schematic diagram of the present invention.

[0016] Figure 2 is a back structural schematic diagram of the present invention.

[0017] Figure 3 is a schematic diagram of the use state of the present invention Figure 1 .

[0018] Figure 4 is a schematic diagram of the use state of the present invention Figure 2 .

[0019] Figure 5 is a schematic diagram of the structural distribution of the slitting mechanism and the cable in the present invention.

[0020] Figure 6 is a schematic diagram of the structural distribution of the pressing mechanism and the support seat in the present invention.

[0021] Figure 7 is a schematic diagram of the structural distribution of the circumcision mechanism and the support seat in the present invention.

[0022] Figure 8 It is a schematic structural diagram of the slitting mechanism in the present invention.

[0023] Figure 9 It is a schematic structural distribution diagram of the pushing and pulling mechanism and the crimping mechanism in the present invention.

[0024] Figure 10 It is a schematic structural diagram of the pushing and pulling mechanism in the present invention.

[0025] Figure 11 It is a schematic structural diagram of the crimping mechanism in the present invention.

[0026] Figure 12 It is a schematic structural distribution diagram of the cable joint and the crimping mechanism in the present invention.

[0027] Legend description:

[0028] 1. Outer frame; 2. Support base; 201. Positioning groove; 3. Pressing mechanism; 301. Raising frame; 302. First electric telescopic rod; 303. Pressing ring; 4. Circumcision mechanism; 401. Installation sleeve; 402. First motor; 403. Small gear; 404. Large gear; 405. Adapter plate; 406. Slitting mechanism; 4061. Threaded sleeve; 4062. Rotating handle; 4063. Threaded rod; 4064. Lifting plate; 4065. Cutting blade; 4066. First limit guide rod; 5. Pushing and pulling mechanism; 501. Second electric telescopic rod; 502. Connecting block; 503. Support plate; 5031. Limit sliding groove; 504. Slide block; 505. Linear slide rail; 6. Crimping mechanism; 601. Second motor; 602. Bi-directional screw; 603. First external thread; 604. Second external thread; 605. First threaded block; 606. Second threaded block; 607. Crimping block; 608. Second limit guide rod; 7. Lifting handle; 8. Mobile power supply; 9. Cable; 10. Cable joint. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0030] The following gives specific embodiments.

[0031] See Figures 1 to 12, in the embodiment of the present invention, a crimping device for field power cable erection includes an outer frame 1, a support base 2, a pressing mechanism 3, a circumcision mechanism 4, a pushing and pulling mechanism 5, a crimping mechanism 6, a lifting handle 7, a mobile power source 8, a cable 9 and a cable joint 10. A lifting handle 7 is fixedly installed at the top of the outer frame 1, and the outer frame 1 can be lifted and carried through the lifting handle 7. A support base 2 is fixedly installed inside the outer frame 1. A positioning groove 201 is provided on the support base 2, and the positioning groove 201 is used to place the cable 9. The support base 2 is fixedly installed with a pressing mechanism 3. A circumcision mechanism 4 is installed on the front side of the support base 2. A pushing and pulling mechanism 5 is installed inside the outer frame 1 on the front side of the support base 2. A crimping mechanism 6 is provided on the pushing and pulling mechanism 5. When in use, first pass the cable 9 through the positioning groove 201, press the cable 9 onto the support base 2 through the pressing mechanism 3, then clamp the front end of the cable 9 by the crimping mechanism 6. Then, cut off the wrapping layer outside the cable 9 through the circumcision mechanism 4. Then, drive the crimping mechanism 6 to move forward through the pushing and pulling mechanism 5, and pull off the cut wrapping layer on the cable 9 forward through the crimping mechanism 6, so that the core of the cable 9 is exposed. Then, put the cable joint 10 on the core of the cable 9, drive the crimping mechanism 6 to return by the pushing and pulling mechanism 5, and then extrude the cable joint 10 by the crimping mechanism 6, so that the cable joint 10 fits tightly on the core of the cable 9;

[0032] The pressing mechanism 3 includes: a heightening frame 301, a first electric telescopic rod 302 and a pressing ring 303. The heightening frame 301 is fixed on the support base 2. A first electric telescopic rod 302 is fixedly installed on the heightening frame 301. The telescopic end of the first electric telescopic rod 302 is fixedly connected with the pressing ring 303. The pressing ring 303 is located directly above the positioning groove 201. The pressing ring 303 is in a semi-circular ring shape. When in use, pass the cable 9 through the positioning groove 201, and then drive the pressing ring 303 to move down by the first electric telescopic rod 302, and press the cable 9 into the positioning groove 201 through the pressing ring 303;

[0033] The circumferential cutting mechanism 4 includes: a mounting sleeve 401, a first motor 402, a small gear 403, a large gear 404, a transfer plate 405 and a slitting mechanism 406. The mounting sleeve 401 is fixedly installed on the front side of the support base 2. The first motor 402 is fixedly installed inside the outer frame 1. A small gear 403 is fixedly installed on the output shaft of the first motor 402. A large gear 404 meshing with the small gear 403 is arranged above the small gear 403. The large gear 404 is rotatably connected to the outside of the mounting sleeve 401 through a bearing. A transfer plate 405 is fixedly connected to the large gear 404. A slitting mechanism 406 is installed on the transfer plate 405. The slitting mechanism 406 includes: a threaded sleeve 4061, a rotating handle 4062, a threaded rod 4063, a lifting plate 4064, a cutting blade 4065 and a first limiting guide rod 4066. The threaded sleeve 4061 is rotatably connected to the transfer plate 405. A rotating handle 4062 is fixedly installed on the outside of the threaded sleeve 4061. A threaded rod 4063 passing through the threaded sleeve 4061 is installed inside the threaded sleeve 4061. The bottom of the threaded rod 4063 is fixed with a lifting plate 4064. A cutting blade 4065 is fixedly installed on the lower side of the lifting plate 4064. A first limiting guide rod 4066 passing through the transfer plate 405 is fixedly installed on the upper side of the lifting plate 4064. The first limiting guide rod 4066 is slidably connected to the transfer plate 405. The movement of the lifting plate 4064 and the threaded rod 4063 is restricted by the first limiting guide rod 4066 so that they cannot rotate but can only move linearly. During use, a person rotates the rotating handle 4062 by hand. The rotation of the rotating handle 4062 drives the rotation of the threaded sleeve 4061. The rotation of the threaded sleeve 4061 drives the downward movement of the threaded rod 4063. The threaded rod 4063 drives the lifting plate 4064 and the cutting blade 4065 to move downward, so that the cutting blade 4065 cuts into the outer skin of the cable 9. Then, the output shaft of the first motor 402 drives the rotation of the small gear 403. The rotation of the small gear 403 drives the rotation of the large gear 404. The rotation of the large gear 404 drives the rotation of the transfer plate 405. The rotation of the transfer plate 405 drives the rotation of the slitting mechanism 406, so that the cutting blade 4065 rotates around the cable 9 for one circle, thereby cutting off the outer skin of the cable 9;

[0034] The pushing and pulling mechanism 5 includes: a second electric telescopic rod 501, a connecting block 502, a support plate 503, a slider 504 and a linear slide rail 505. Two second electric telescopic rods 501 are fixedly installed inside the outer frame 1. A connecting block 502 is fixedly connected to the telescopic end of each second electric telescopic rod 501. The connecting block 502 is fixed to the support plate 503. Two sliders 504 are fixedly installed at the bottom of the support plate 503. Each slider 504 is slidably installed on a linear slide rail 505. The linear slide rail 505 is fixedly installed inside the outer frame 1. During use, the second electric telescopic rod 501 drives the connecting block 502 and the support plate 503 to move back and forth, and the support plate 503 drives the crimping mechanism 6 to move back and forth;

[0035] The crimping mechanism 6 includes: a second motor 601, a bidirectional screw 602, a first external thread 603, a second external thread 604, a first threaded block 605, a second threaded block 606, a crimping block 607, and a second limiting guide rod 608. The second motor 601 is fixedly installed on the support plate 503. The bidirectional screw 602 is rotatably connected to the support plate 503. The output shaft of the second motor 601 is fixed to one end of the bidirectional screw 602. The left half section of the bidirectional screw 602 is provided with a first external thread 603, and a first threaded block 605 that is matched with it is installed on the outside of the first external thread 603. The right half section of the bidirectional screw 602 is provided with a second external thread 604, and a second threaded block 606 that is matched with it is installed on the outside of the second external thread 604. A crimping block 607 is fixed to the upper sides of both the first threaded block 605 and the second threaded block 606. The crimping block 607 is in a semi-circular ring shape. The two crimping blocks 607 are arranged oppositely. A second limiting guide rod 608 that is inserted into the support plate 503 is fixed to the lower sides of both the first threaded block 605 and the second threaded block 606. The second limiting guide rod 608 is slidably connected to the support plate 503. The support plate 503 is provided with a limiting chute 5031 for the movement of the second limiting guide rod 608. The movement of the first threaded block 605 and the second threaded block 606 is restricted by the second limiting guide rod 608 so that they cannot rotate but can only move linearly. The helix directions of the first external thread 603 and the second external thread 604 are opposite, so that when the bidirectional screw 602 rotates, the moving directions of the first threaded block 605 and the second threaded block 606 are opposite. When in use, the second motor 601 drives the bidirectional screw 602 to rotate. The rotation of the bidirectional screw 602 drives the first threaded block 605 and the second threaded block 606 to move towards each other. The first threaded block 605 and the second threaded block 606 drive the two crimping blocks 607 to move towards each other;

[0036] A mobile power source 8 is fixedly installed inside the outer frame 1. The first electric telescopic rod 302, the first motor 402, the second electric telescopic rod 501, and the second motor 601 are all electrically connected to the mobile power source 8 through wires, so that the mobile power source 8 can supply power to the first electric telescopic rod 302, the first motor 402, the second electric telescopic rod 501, and the second motor 601.

[0037] Working principle: When using the crimping device for field power cable erection, the cable 9 is passed through the positioning groove 201, and then the pressing ring 303 is driven by the first electric telescopic rod 302 to move downward, and the cable 9 is pressed into the positioning groove 201 by the pressing ring 303. Then, the second motor 601 drives the bidirectional screw rod 602 to rotate, and the first threaded block 605 and the second threaded block 606 move towards each other by the rotation of the bidirectional screw rod 602. The two crimping blocks 607 are driven by the first threaded block 605 and the second threaded block 606 to move towards each other, so that the two crimping blocks 607 clamp the outer skin of the cable 9. Then, a person rotates the rotary handle 4062 by hand, and the threaded sleeve 4061 is driven to rotate by the rotation of the rotary handle 4062. The threaded rod 4063 moves downward by the rotation of the threaded sleeve 4061. The lifting plate 4064 and the cutting blade 4065 are driven by the threaded rod 4063 to move downward, so that the cutting blade 4065 cuts into the outer skin of the cable 9. Then, the output shaft of the first motor 402 drives the small gear 403 to rotate, the large gear 404 is driven to rotate by the rotation of the small gear 403, the adapter plate 405 is driven to rotate by the rotation of the large gear 404, and the slitting mechanism 406 is driven to rotate by the rotation of the adapter plate 405, so that the cutting blade 4065 rotates around the cable 9 for one circle, thereby cutting off the outer skin of the cable 9. Then, the second electric telescopic rod 501 drives the connecting block 502 and the support plate 503 to move forward, and the support plate 503 drives the crimping mechanism 6 to move forward, so that the crimping mechanism 6 pulls out the cut outer skin on the cable 9. Then, the crimping mechanism 6 loosens the cable 9, so that the core of the cable 9 is exposed. Then, the cable joint 10 is sleeved on the core of the cable 9, the pushing and pulling mechanism 5 drives the crimping mechanism 6 to return to its position, and then the two crimping blocks 607 approach each other, so that the two crimping blocks 607 tightly fit the cable joint 10 to the core of the cable 9.

[0038] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A crimping device for field erection of power cables, characterized in that, It includes an outer frame (1), a support base (2), a pressing mechanism (3), a circumferential cutting mechanism (4), a pushing and pulling mechanism (5), a crimping mechanism (6), a lifting handle (7) and a mobile power supply (8). The support base (2) is fixedly installed inside the outer frame (1). A positioning groove (201) is provided on the support base (2). The pressing mechanism (3) is fixedly installed on the support base (2). The circumferential cutting mechanism (4) is installed on the front side of the support base (2). The pushing and pulling mechanism (5) is installed inside the outer frame (1) on the front side of the support base (2). The crimping mechanism (6) is provided on the pushing and pulling mechanism (5). The pressing mechanism (3) includes: a heightening frame (301), a first electric telescopic rod (302) and a pressing ring (303). The heightening frame (301) is fixed to the support base (2). The first electric telescopic rod (302) is fixedly installed on the heightening frame (301). The telescopic end of the first electric telescopic rod (302) is fixedly connected to the pressing ring (303). The pressing ring (303) is located directly above the positioning groove (201). The pressing ring (303) is in a semi-circular ring shape. The circumferential cutting mechanism (4) includes: an installation sleeve (401), a first motor (402), a small gear (403), a large gear (404), a transfer plate (405) and a slitting mechanism (406). The installation sleeve (401) is fixedly installed on the front side of the support base (2). The first motor (402) is fixedly installed inside the outer frame (1). The small gear (403) is fixedly installed on the output shaft of the first motor (402). The large gear (404) which meshes with the small gear (403) is provided above the small gear (403). The large gear (404) is rotatably connected to the outside of the installation sleeve (401) through a bearing. The transfer plate (405) is fixedly connected to the large gear (404). The slitting mechanism (406) is installed on the transfer plate (405). The slitting mechanism (406) includes: a threaded sleeve (4061), a rotary handle (4062), a threaded rod (4063), a lifting plate (4064), a cutting blade (4065) and a first limit guide rod (4066). The threaded sleeve (4061) is rotatably connected to the transfer plate (405). The rotary handle (4062) is fixedly installed on the outside of the threaded sleeve (4061). The threaded rod (4063) which penetrates through the threaded sleeve (4061) is installed inside the threaded sleeve (4061). The lifting plate (4064) is fixed to the bottom of the threaded rod (4063). The cutting blade (4065) is fixedly installed on the lower side of the lifting plate (4064). The first limit guide rod (4066) which penetrates through the transfer plate (405) is fixedly installed on the upper side of the lifting plate (4064). The first limit guide rod (4066) is slidably connected to the transfer plate (405).The push-pull mechanism (5) includes: a second electric telescopic rod (501), a connection block (502), a support plate (503), a slider (504), and a linear slide rail (505). Two of the second electric telescopic rods (501) are fixedly installed inside the outer frame (1). The telescopic end of each second electric telescopic rod (501) is fixedly connected to a connection block (502). The connection block (502) is fixed to the support plate (503). Two sliders (504) are fixedly installed at the bottom of the support plate (503). Each slider (504) is slidably installed on a linear slide rail (505), and the linear slide rail (505) is fixedly installed inside the outer frame (1). The crimping mechanism (6) includes: a second motor (601), a bidirectional screw (602), a first external thread (603), a second external thread (604), a first threaded block (605), a second threaded block (606), a crimping block (607), and a second limit guide rod (608). The second motor (601) is fixedly installed on the support plate (503). The bidirectional screw (602) is rotatably connected to the support plate (503). The output shaft of the second motor (601) is fixed to one end of the bidirectional screw (602). The left half of the bidirectional screw (602) is provided with the first external thread (603), and the first threaded block (605) that matches it is installed on the outside of the first external thread (603). The right half of the bidirectional screw (602) is provided with the second external thread (604), and the second threaded block (606) that matches it is installed on the outside of the second external thread (604). A crimping block (607) is fixed to the upper sides of the first threaded block (605) and the second threaded block (606). The crimping block (607) is in a semi-circular ring shape. The two crimping blocks (607) are arranged oppositely. A second limit guide rod (608) that is inserted into the support plate (503) is fixed to the lower sides of the first threaded block (605) and the second threaded block (606). The helix directions of the first external thread (603) and the second external thread (604) are opposite.; 2. The crimping device for field erection of power cables according to claim 1, characterized in that, The second limiting guide rod (608) is slidably connected to the support plate (503), and a limiting sliding groove (5031) for the movement of the second limiting guide rod (608) is provided on the support plate (503).

3. The crimping device for field erection of power cables according to claim 1, characterized in that, A mobile power source (8) is fixedly installed in the outer frame (1), and the first electric telescopic rod (302), the first motor (402), the second electric telescopic rod (501) and the second motor (601) are all electrically connected to the mobile power source (8) through wires.

4. The crimping device for field power cable erection according to claim 1, wherein, A lifting handle (7) is fixedly installed at the top of the outer frame (1).

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