Charging pile cable low-temperature service life detection device

Abstract

The utility model discloses a charging pile cable low-temperature life detection device, which is characterized in that a support plate is obliquely arranged at the top of a rack, stoppers are arranged at the upper end and the lower end of the support plate, a hollow chute is formed in the center of the support plate, symmetrically arranged racks are fixedly arranged on the side edges of the chute, and a moving trolley is arranged at the top of the support plate; the output end of the moving motor is connected with a transmission mechanism through a reducer, and the output end of the torsion motor is connected with a rotating chuck. One end of the detection cable is fixed to the highest point of the rack, the other end of the detection cable is fixed to the rotary chuck, bending life detection of the cable is achieved through reciprocating motion of the moving trolley in the inclined direction, the torsion motor provides torsion force for the cable in the moving process, meanwhile, torsion life detection of the cable is conducted, and the detection and installation processes are simple and convenient. And the phenomenon that the test is influenced by cable winding and the like is avoided, and the twisted cable cannot be wound in the motion space to influence the test. Moving parts of the whole device operate in a refrigerator at the temperature of-40 DEG C.

Description

Technical Field

[0001] The utility model relates to the technical field of cable detection equipment, in particular to a detection device for the low-temperature operation life of a charging pile cable. Background Technique

[0002] At present, with the gradual improvement of the social automation level, the electrical system has become increasingly complex. Cables undertake the important tasks of transmitting electric energy and signals and are widely used in various mechanical and electronic fields. Since the service life of the cable directly affects the safety of production, the safe service life of the cable is particularly important in practical applications.

[0003] In the existing relevant technical specifications, there is no clear requirement for the service life of the cable. The generally recognized safe design life of the cable in the industry is 20 - 30 years. However, in the actual working environment, it is affected by factors such as oil mist, heat, radiation, machinery, and low-temperature climate. Especially when the charging pile is used outdoors, the cable is often dragged at low temperatures. In addition, when the cable is erected, its own gravity acts entirely on the cable itself, often causing the cable to break, thereby reducing the service life of the cable. Content of the Utility Model

[0004] According to the above technical problems to be solved, a detection device for the low-temperature life of a charging pile cable is provided.

[0005] To achieve the above object, the utility model discloses a detection device for the low-temperature life of a charging pile cable, which includes a frame and a control cabinet arranged on the side of the frame. The top of the frame is an inclined surface, and a support plate is installed on the top of the frame in an inclined manner. Blocks are installed at the upper and lower ends of the support plate. A hollow chute is opened in the center of the support plate, and symmetrically arranged racks are fixedly installed on the side of the chute. A moving trolley is arranged on the top of the support plate. The moving trolley includes a panel arranged parallel to the support plate. Travel wheels are installed at the bottom of the panel. A torsion motor and a moving motor are arranged on the top of the panel. The output end of the moving motor is connected to a transmission mechanism through a reducer. The output end of the torsion motor is connected to a rotating chuck. The end of the detection cable is clamped at the position of the rotating chuck, and the other end of the detection cable is fixedly connected to the highest point position of the frame.

[0006] Further, the transmission mechanism includes a housing fixed to the bottom of the panel. A gear meshing with the rack is installed in the housing. A worm gear is coaxially installed at the bottom of the gear. A worm is meshed and installed on the side of the worm gear. The output shaft of the reducer at the position of the output end of the moving motor is connected to the worm.

[0007] Furthermore, at least two groups of gears are arranged and symmetrically installed on both sides of the worm. The gears on the same side mesh with the rack.

[0008] Furthermore, a bearing is movably installed at the top of the outer shell. The bearing and the gear are respectively arranged on both sides of the rack, and the bearing is in contact with the smooth surface of the rack.

[0009] Furthermore, a fixed rod perpendicular to the opening direction of the sliding groove is installed on the top of the moving trolley. The fixed rod is fixedly installed through a screw and a nut on the surface of the panel. Two baffles are arranged parallel to each other at the top of the side of the fixed rod close to the control cabinet.

[0010] Furthermore, the pipeline wires connecting the control cabinet, the torsion motor and the moving motor are placed between the baffles.

[0011] Furthermore, the central axis of the rotary chuck always remains vertical during the movement of the moving trolley, and fixed clamping jaws are circumferentially arranged at the bottom of the rotary chuck.

[0012] Compared with the prior art, the beneficial effects produced by the present utility model are as follows: The present utility model discloses a low-temperature life detection device for a charging pile cable. One end of the detection cable is fixed to the highest point of the rack, and the other end is fixed to the rotary chuck. The bending life of the cable is detected by the reciprocating movement of the moving trolley in the inclined direction. During the movement, the torsion motor provides a torsional force to the cable, and at the same time, the torsional life of the cable is detected. The detection and installation process is simple, and the twisted cable will not be wound in the movement space and affect the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0015] Figure 2 It is a schematic diagram of the structure of the moving trolley of the present utility model.

[0016] Figure 3 It is an installation schematic diagram of the transmission mechanism and the moving trolley of the present utility model.

[0017] Figure 4 It is a schematic diagram of the rotary chuck of the present utility model.

[0018] Figure 5 It is a schematic diagram of the transmission mechanism of the present utility model.

[0019] Figure 6 It is a schematic diagram of the moving track of the detection cable of the present utility model.

[0020] In the figure: 1 is a frame; 11 is a stop block; 12 is a support plate; 13 is a rack; 2 is a control cabinet; 3 is a moving trolley; 31 is a panel; 32 is a walking wheel; 33 is a torsion motor; 34 is a moving motor; 341 is a reducer; 35 is a transmission mechanism; 351 is a housing; 352 is a gear; 352 is a worm gear; 254 is a worm; 355 is a bearing; 36 is a fixed rod; 361 is a baffle; 37 is a rotary chuck; 371 is a fixed jaw; 4 is a detection cable. Specific embodiments

[0021] 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 creative efforts shall fall within the protection scope of the present invention.

[0022] An embodiment of the present invention is as Figure 1 and Figure 2 shown. There is a frame 1 and a control cabinet 2 arranged on the side of the frame 1. The top of the frame 1 is an inclined surface. An inclined support plate 12 is installed on the top of the frame 1. Stop blocks 11 are installed at the upper and lower ends of the support plate 12 for limiting the moving trolley 3. A hollow chute is provided in the center of the support plate 12. Symmetrically arranged racks 13 are fixedly installed on the side of the chute. A moving trolley 3 is arranged on the top of the support plate 12. The moving trolley 3 includes a panel 31 arranged parallel to the support plate 12. Walking wheels 32 are installed at the bottom of the panel 31. A torsion motor 33 and a moving motor 34 are arranged on the top of the panel 31. The output end of the moving motor 34 is connected to a transmission mechanism 35 through a reducer 341. The output end of the torsion motor 33 is connected to a rotary chuck 37. The end of the detection cable 4 is clamped at the position of the rotary chuck 37. The other end of the detection cable 4 is fixedly connected to the highest point of the frame 1. One end of the detection cable 4 is fixed to the highest point of the frame 1, and the other end is fixed at the rotary chuck 37. The bending life test of the cable is realized by the reciprocating movement of the moving trolley 3 in the inclined direction. During the movement, the torsion motor provides a torsional force to the cable, and at the same time, the torsional life test of the cable is carried out. The whole detection device operates in a low-temperature chamber at -40°C. The detection and installation process is simple, and the twisted cable will not be entangled in the moving space and affect the experiment.

[0023] As Figure 5As shown in the figure, the transmission mechanism 35 includes a housing 351 fixed to the bottom of the panel 31. A gear 352 meshing with the rack 13 is installed inside the housing 351. A worm gear 353 is coaxially installed at the bottom of the gear 352. A worm 354 is meshingly installed on the side of the worm gear 353. The output shaft of the speed reducer 341 at the output end of the moving motor 34 is connected to the worm 354. Through the cooperation of the worm gear and the gear-rack, the transmission is realized, so that the moving motor 34 drives the moving trolley 3 to reciprocate up and down to complete the life test of the detection cable 4.

[0024] At least two groups of gears 352 are provided and symmetrically installed on both sides of the worm 354. The gears 352 on the same side mesh with the rack 13. Under the action of the two groups of gear-racks, the moving trolley 3 always reciprocates along the direction of the chute, ensuring the consistency of the moving track.

[0025] As Figure 3 shown in the figure, a bearing 355 is movably installed at the top of the housing 351. The bearing 355 and the gear 352 are respectively arranged on both sides of the rack 13. The bearing 355 is in contact with the smooth surface of the rack 13, reducing the friction during the displacement of the moving trolley 3 and ensuring the smoothness of the movement.

[0026] A fixing rod 36 perpendicular to the opening direction of the chute is installed on the top of the moving trolley 3. The fixing rod 36 is fixedly installed through the screw and nut on the surface of the panel 31. Two parallel baffles 361 are arranged at the top of the fixing rod 36 close to the control cabinet 2. The connecting wires and pipes are placed between the two baffles 361. During the reciprocating movement of the trolley, the wires and pipes move along with it. The problem of wire entanglement is avoided through the restriction of the baffles 361, ensuring the normal progress of the experiment.

[0027] Between the baffles 361, there are pipeline materials connecting the control cabinet 2 with the torsion motor 33 and the moving motor 34.

[0028] As Figure 4 shown in the figure, the central axis of the rotary chuck 37 always remains vertical during the movement of the moving trolley 3. The output end of the torsion motor 33 drives the rotary chuck through a bevel gear set. Fixed jaws 371 are circumferentially arranged at the bottom of the rotary chuck 37. The fixed jaws 371 are driven by a cylinder. As an existing technology, the specific driving structure is not shown, improving the fixing effect of the detection cable 4 and preventing it from falling during the detection process.

[0029] The working principle of this embodiment: The moving trolley moves to the lowest point of the support plate. One end of the detection cable is fixed at the highest point of the rack, and the other end is fixed on the rotary chuck. After the wiring of the torsion motor and the moving motor on the moving trolley is completed, it passes through the baffle and is connected to the control cabinet. After the preparation work is completed, the moving motor is started. The transmission mechanism drives the moving trolley to move upward until it abuts against the stop block at the highest point. As Figure 6As shown, the detection cable is in a vertical state at this time. Subsequently, the moving trolley is reset to complete a cycle of detection actions for the bending life detection of the cable. During the movement, the torsion motor is started to drive the rotating chuck to provide a torsional force to the movable end of the detection cable, and the torsional life detection is carried out simultaneously.

[0030] The following points need to be explained: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components. It can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change. Second, in this article, relational terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities.

[0031] The above examples are only illustrative of the present utility model and do not constitute a limitation on the protection scope of the present utility model. Any design identical or similar to the present utility model belongs to the protection scope of the present utility model.

Claims

1. A charging pile cable low temperature life detection device, comprising a frame (1) and a control cabinet (2) arranged on the side of the frame (1), characterized in that: The top of the frame (1) is an inclined surface. A support plate (12) is installed on the top of the frame (1) and is arranged obliquely. Stoppers (11) are installed at the upper and lower ends of the support plate (12). A hollow slide groove is opened in the center of the support plate (12). A symmetrically arranged rack (13) is fixedly installed on the side of the slide groove. A moving trolley (3) is arranged on the top of the support plate (12). The moving trolley (3) includes a panel (31) arranged parallel to the support plate (12). A walking wheel (32) is installed at the bottom of the panel (31). A torsion motor (33) and a moving motor (34) are arranged on the top of the panel (31). The output end of the moving motor (34) is connected to a transmission mechanism (35) through a reducer (341). The output end of the torsion motor (33) is connected to a rotating chuck (37). The rotating chuck (37) clamps the end of the detection cable (4). The other end of the detection cable (4) is fixedly connected to the highest point of the frame (1).

2. A charging pile cable low temperature life detection device according to claim 1, characterized in that: The transmission mechanism (35) comprises a housing (351) fixed to the bottom of the panel (31), a gear (352) meshing with the rack (13) being installed in the housing (351), a worm wheel (353) coaxially installed at the bottom of the gear wheel (352), a worm (354) meshingly installed on the side of the worm wheel (353), and an output shaft of a reducer (341) at the output end of the mobile motor (34) being connected to the worm (354).

3. A charging pile cable low temperature life detection device according to claim 2, characterized in that: At least two groups of gears (352) are provided and are symmetrically mounted on both sides of the worm (354), and the gears (352) on the same side are meshed with the rack (13).

4. A charging pile cable low temperature life detection device according to claim 2, characterized in that: A bearing (355) is movably mounted on the top of the housing (351); the bearing (355) and the gear (352) are respectively arranged on both sides of the rack (13); the bearing (355) and the smooth surface of the rack (13) are in contact with each other.

5. A charging pile cable low temperature life detection device according to claim 1, characterized in that: A fixing rod (36) perpendicular to the opening direction of the slide slot is installed on the top of the movable trolley (3), and the fixing rod (36) is fixedly installed by a screw and a nut on the surface of the panel (31). Two baffles (361) installed in parallel are arranged on the top of one side of the fixing rod (36) close to the control cabinet (2).

6. A charging pile cable low temperature life detection device according to claim 5, characterized in that: Pipes and wires connecting the control cabinet (2) and the torsion motor (33) and the movement motor (34) are placed between the baffles (361).

7. A charging pile cable low temperature life detection device according to claim 1, characterized in that: The central axis of the rotating chuck (37) is always kept vertical during the movement of the moving trolley (3), and fixed clamping claws (371) are arranged circumferentially on the bottom of the rotating chuck (37).

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