Cable transportation equipment

Abstract

The invention provides cable transportation equipment, and relates to the technical field of cable laying, the cable transportation equipment comprises a support and a circulating conveying assembly, a plurality of clamping pieces are arranged on the circulating conveying assembly in the conveying direction of the circulating conveying assembly at equal intervals, a first contact surface and a first cavity are formed on each clamping piece, and a control part is arranged on each clamping piece. The expansion degree of the first contact surface is positively correlated with the pressure in the first cavity, and the control part can sense the surface temperature of the cable and enables the pressure in the first cavity to be negatively correlated with the surface temperature of the cable, so that the expansion degree and hardness of the first contact surface are adjusted according to the surface temperature of the cable. And the hardness of the first contact surface is matched with the hardness of the cable sheath, so that the clamping piece is ensured to apply proper extrusion force to the cable sheath, and the influence on power supply safety caused by indentation or structural damage of the cable sheath due to overlarge extrusion force is avoided.

Description

Technical Field

[0001] This invention relates to the field of cable laying technology, and in particular to a cable transport device. Background Technology

[0002] Cable conveyors are specialized equipment widely used in cable laying projects. They are mainly used to provide traction during cable laying, assisting cables to smoothly traverse long distances, and are suitable for construction scenarios such as urban power grid upgrades and cable installation for new facilities. The core conveying structure of a cable conveyor typically adopts a crawler-type clamp design. It forms a continuous conveying channel through two parallel crawler-type clamps, which are driven synchronously by a drive unit. During use, the clamps hold the cable on both sides, and the cyclical movement of the crawler-type clamps drives the cable forward at a uniform speed.

[0003] When existing cable conveyors are used outdoors, the cable sheath is easily affected by the ambient temperature, which causes changes in hardness. However, the clamping blocks are usually less affected by temperature. This leads to a mismatch in the hardness of the contact surfaces between the clamping blocks and the cable sheath. This can cause the clamping blocks to apply excessive pressure to the cable sheath, resulting in indentations or structural damage to the cable sheath and affecting power supply safety.

[0004] The information disclosed in the background section of this invention is intended only to enhance the understanding of the general background of this invention, and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] Therefore, it is necessary to provide a cable transport device that addresses the problems existing in current cable conveyors.

[0006] The above objectives are achieved through the following technical solutions: A cable transport device includes a support frame and two circulating transport assemblies mounted on the support frame. The two circulating transport assemblies are spaced apart and their transport directions are parallel to each other. Each circulating transport assembly has a plurality of clamping members evenly spaced along its transport direction. Each clamping member has a first contact surface for contacting and clamping a cable. The first contact surface is made of an elastic material. A first chamber is formed inside each clamping member and is filled with gas to cause the first contact surface to expand. The degree of expansion of the first contact surface is positively correlated with the pressure inside the first chamber. The clamping member is also provided with a control unit that can sense the surface temperature of the cable and make the pressure inside the first chamber negatively correlated with the surface temperature of the cable.

[0007] The control unit further includes a second chamber, an actuating part, and a second contact surface. The second chamber is formed within the clamping member and filled with gas. The pressure inside the second chamber is positively correlated with the surface temperature of the cable. The second chamber is separated from the first chamber, and the actuating part is located between the second chamber and the first chamber. The second contact surface is located on the clamping member and is used to contact the cable. The second contact surface can sense the surface temperature of the cable and transfer heat to the second chamber. The actuating part causes the pressure inside the first chamber to be negatively correlated with the pressure inside the second chamber.

[0008] Furthermore, the actuating unit includes a first piston and a second piston, which are spaced apart and both capable of moving along a first direction. The first direction is the direction of the line connecting the first chamber and the second chamber, and the first piston and the second piston move in opposite directions. When the pressure in the second chamber decreases, the second piston gradually moves into the second chamber, and the first piston gradually moves into the first chamber, thereby increasing the pressure in the first chamber. When the pressure in the second chamber increases, the second piston gradually moves out of the second chamber, and the first piston gradually moves out of the first chamber, thereby decreasing the pressure in the first chamber.

[0009] Furthermore, the actuating part also includes a gear and a toothed groove. The gear is disposed between the first piston and the second piston. The first piston and the second piston are provided with a plurality of toothed grooves at equal intervals on the side that is close to each other. The toothed grooves mesh with the gear. When the second piston moves along the first direction, the gear rotates to drive the first piston to move in the opposite direction along the first direction. The first piston and the second piston have a tendency to keep the expansion degree of the first contact surface at its initial value.

[0010] Furthermore, when the clamping member contacts the cable and moves along the conveying direction of the circulating conveying assembly, the second contact surface contacts the cable surface for a first time, and the first contact surface contacts the cable surface for a second time, wherein the first time is less than the second time.

[0011] Furthermore, when the contact between the second contact surface and the cable surface is switched to the contact between the first contact surface and the cable surface, the second contact surface cleans the cable surface.

[0012] Furthermore, the cross-sections of the first contact surface and the second contact surface are two adjacent arcs on a preset trajectory, which is a circle. The clamping member can rotate around the center of the preset trajectory to switch between the first contact surface or the second contact surface contacting the cable surface, and the clamping member has a tendency to make the second contact surface contact the cable surface. When the second contact surface contacts the cable surface for the first time, the clamping member rotates to make the first contact surface contact the cable surface.

[0013] Furthermore, an elastic element is provided between the clamping member and the circulating conveying assembly, the elastic element causing the clamping member to tend to approach the cable surface.

[0014] Furthermore, the length direction of the clamping member forms a first angle with the conveying direction of the circulating conveying assembly, and the bracket is provided with a first adjustment part, which is used to adjust the first angle.

[0015] Furthermore, the support is provided with a second adjustment part, which is used to adjust the distance between the two circulating conveying components.

[0016] The present invention has at least the following beneficial effects: (1) The control unit can sense the cable surface temperature and make the pressure in the first chamber negatively correlated with the cable surface temperature. When the cable surface temperature is low, the hardness of the cable sheath increases, and the control unit increases the pressure in the first chamber to increase the expansion and hardness of the first contact surface; when the cable surface temperature is high, the hardness of the cable sheath decreases, and the control unit decreases the pressure in the first chamber to reduce the expansion and hardness of the first contact surface. Thus, the hardness of the first contact surface is adjusted according to the cable surface temperature to match the hardness of the cable sheath, ensuring that the clamping device applies appropriate squeezing force to the cable sheath and avoiding excessive squeezing force that could cause indentation or structural damage to the cable sheath, affecting power supply safety.

[0017] (2) When the second contact surface contacts the cable surface and the first contact surface contacts the cable surface, the second contact surface and the cable surface move relative to each other to clean the cable surface and avoid abrasive wear that could damage the cable surface and clamping parts.

[0018] (3) The first included angle is adjusted by the first adjustment part so that the first included angle is adapted to the shape of the sheath. At the same time, the elastic element is used to make the clamping element fully contact the sheath on the surface of the cable, increasing the friction between the two and ensuring the transmission effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a cable transport device provided in an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure after removing the outer shell; Figure 3 A schematic diagram of the connection structure between the clamping component and the chain; Figure 4 for Figure 3 A schematic diagram of the structure after being cut along plane A in the middle; Figure 5 for Figure 4 A magnified view of a section at point C; Figure 6 for Figure 3 A schematic diagram of the structure after being cut along plane B in the middle; Figure 7 for Figure 6 A magnified view of a section at point D; Figure 8 for Figure 3 Top view; Figure 9 for Figure 3 Exploded view of the parts; Figure 10 for Figure 1 Front view of Figure 11 for Figure 10 A sectional view along the EE direction; Figure 12 for Figure 1 Top view; Figure 13 for Figure 12 A sectional view along the FF direction; Figure 14 for Figure 10 A cross-sectional view along the GG direction.

[0020] in: 100. Bracket; 101. Chain; 102. Housing; 103. Support roller; 104. Screw; 105. Guide block; 200. Clamping component; 201. First contact surface; 202. First chamber; 203. Second chamber; 204. Partition; 205. First piston component; 206. Second piston component; 207. Gear; 208. Tooth groove; 209. Third chamber; 210. Side plate; 211. First torsion spring; 212. Second contact surface; 213. Rotating shaft; 214. Friction wheel; 215. Friction block; 216. Elastic component; 217. Motor; 218. Drive sprocket; 219. Driven sprocket; 220. Slide groove; 221. First slide block; 222. Support; 223. Rotating pin; 224. Second slide block; 225. Slider; 226. Second torsion spring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0022] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0023] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0024] like Figures 1 to 14 As shown, this embodiment of the invention provides a cable transport device, including a support 100 and two circulating transport assemblies disposed on the support 100. The two circulating transport assemblies are spaced apart and their transport directions are parallel to each other. Multiple clamping members 200 are equally spaced along their transport directions on the circulating transport assemblies. A first contact surface 201 for contacting and clamping the cable is formed on the clamping member 200. The first contact surface 201 is made of an elastic material. A first chamber 202 is formed inside the clamping member 200. The first chamber 202 is filled with gas to cause the first contact surface 201 to expand. The degree of expansion of the first contact surface 201 is positively correlated with the pressure inside the first chamber 202. The clamping member 200 is also provided with a control unit, which can sense the surface temperature of the cable and make the pressure inside the first chamber 202 negatively correlated with the surface temperature of the cable.

[0025] The control unit can sense the cable surface temperature and ensure that the pressure within the first chamber 202 is negatively correlated with the cable surface temperature. Specifically, when the cable surface temperature is low, the hardness of the cable sheath increases, and the control unit increases the pressure within the first chamber 202, increasing the expansion of the first contact surface 201 to increase its hardness. Conversely, when the cable surface temperature is high, the hardness of the cable sheath decreases, and the control unit decreases the pressure within the first chamber 202, decreasing the expansion of the first contact surface 201 to decrease its hardness. This adjusts the hardness of the first contact surface 201 according to the cable surface temperature, matching the hardness of the first contact surface 201 with the hardness of the cable sheath. This ensures that the clamping member 200 applies appropriate compressive force to the cable sheath, preventing excessive compressive force from causing indentations or structural damage to the cable sheath, thus affecting power supply safety.

[0026] The circulating conveyor assembly can be a chain structure or a belt structure, preferably a chain structure, i.e., a chain 101 with closed ends, and clamping members 200 are disposed at the chain links to enable the clamping members 200 to circulate. The support 100 is provided with two outer shells 102, which are disposed outside the circulating conveyor assembly to protect it from dust and foreign objects. Support assemblies are provided at both ends of the support 100 for the circulating conveyor assembly. Each support assembly includes two support rollers 103 rotatably connected to the support 100. The two support rollers 103 are parallel and spaced apart, allowing the cable to be fed in or out between the two support rollers 103 during use, thus supporting the cable at its ends and reducing the downward force exerted by the cable's weight on the clamping members 200.

[0027] In one embodiment, see Figure 4 , Figure 5 The control unit includes a second chamber 203, an actuating unit, and a second contact surface 212. The second chamber 203 is formed within the clamping member 200 and filled with gas. The pressure in the second chamber 203 is positively correlated with the surface temperature of the cable. The second chamber 203 is separated from the first chamber 202, and the actuating unit is located between the second chamber 203 and the first chamber 202. The second contact surface 212 is located on the clamping member 200 and is used to contact the cable. The second contact surface 212 can sense the surface temperature of the cable and transfer heat to the second chamber 203. The actuating unit makes the pressure in the first chamber 202 negatively correlated with the pressure in the second chamber 203.

[0028] Under normal circumstances, when the ambient temperature decreases, the pressure of the gas in the space decreases; when the ambient temperature increases, the pressure of the gas in the space increases. The surface temperature of the cable directly affects the pressure in the second chamber 203. The actuating unit causes the pressure in the first chamber 202 to change in the opposite direction, thereby altering the degree of expansion of the first contact surface 201 and thus its hardness. Specifically, when the cable surface temperature decreases, the pressure in the second chamber 203 decreases, and the actuating unit increases the pressure in the first chamber 202 to increase the degree of expansion and hardness of the first contact surface 201; when the cable surface temperature increases, the pressure in the second chamber 203 increases, and the actuating unit decreases the pressure in the first chamber 202 to decrease the degree of expansion and hardness of the first contact surface 201.

[0029] The clamping member 200 has a partition 204 formed inside, and the actuating part is disposed on the partition 204. The thermal conductivity of the second contact surface 212 is better than that of the first contact surface 201, so that when the second contact surface 212 contacts the cable surface, it can easily sense the cable surface temperature and transfer heat to the second chamber 203 to change the pressure in the second chamber 203. However, when the first contact surface 201 contacts the cable surface, it cannot sense the cable surface temperature, so the pressure in the first chamber 202 is not affected.

[0030] In one embodiment, the actuating unit includes a first piston 205 and a second piston 206 spaced apart and both capable of moving along a first direction, the first direction being the direction of the line connecting the first chamber 202 and the second chamber 203, and the first piston 205 and the second piston 206 moving in opposite directions; when the pressure in the second chamber 203 decreases, the second piston 206 gradually moves into the second chamber 203, and the first piston 205 gradually moves into the first chamber 202, thereby increasing the pressure in the first chamber 202; when the pressure in the second chamber 203 increases, the second piston 206 gradually moves out of the second chamber 203, and the first piston 205 gradually moves out of the first chamber 202, thereby decreasing the pressure in the first chamber 202.

[0031] When the cable surface temperature decreases, the pressure in the second chamber 203 decreases, causing the second piston 206 to gradually move into the second chamber 203, reducing its volume to balance the pressure change. Simultaneously, the first piston 205 gradually moves into the first chamber 202, increasing its volume and pressure, thus increasing the expansion and hardness of the first contact surface 201. When the cable surface temperature increases, the pressure in the second chamber 203 increases, causing the second piston 206 to gradually move out of the second chamber 203, increasing its volume to balance the pressure change. Simultaneously, the first piston 205 gradually moves out of the first chamber 202, reducing its volume and pressure, thus decreasing the expansion and hardness of the first contact surface 201.

[0032] In one embodiment, the actuating part further includes a gear 207 and a toothed groove 208. The gear 207 is disposed between the first piston member 205 and the second piston member 206. The first piston member 205 and the second piston member 206 are provided with a plurality of toothed grooves 208 at equal intervals on the side close to each other. The toothed grooves 208 mesh with the gear 207. When the second piston member 206 moves in the first direction, the gear 207 rotates to drive the first piston member 205 to move in the opposite direction in the first direction. The first piston member 205 and the second piston member 206 have a tendency to keep the expansion degree of the first contact surface 201 at its initial value.

[0033] Gear 207 causes the first piston 205 and the second piston 206 to move in opposite directions along a first direction, so as to adjust the pressure in the first chamber 202 by changing the pressure in the second chamber 203.

[0034] A third chamber 209 is formed in the middle of the partition 204. Openings communicating with the first chamber 202 and the second chamber 203 are formed at both ends of the third chamber 209. A first piston 205 and a second piston 206 are used to seal the corresponding openings. A gear 207 is rotatably disposed within the third chamber 209. Both the first piston 205 and the second piston 206 are plates with side plates 210 formed perpendicularly. The side plates 210 are arranged along a first direction, and toothed grooves 208 are formed on the side plates 210 and mesh with the gear 207. The first piston 205 or the second piston 206 drives the corresponding side plate 210 to move along the third chamber 209, thereby making the pressure in the second chamber 203 negatively correlated with the pressure in the first chamber 202. In addition, a first torsion spring 211 is provided on the gear 207, so that the gear 207 has an initial preload force, so that the first piston 205 and the second piston 206 are kept at a certain distance, thereby having a tendency to keep the expansion degree of the first contact surface 201 at the initial value.

[0035] In one embodiment, when the clamp 200 contacts the cable and moves along the conveying direction of the circulating conveying assembly, the second contact surface 212 first contacts the cable surface for a first time to sense the cable surface temperature, and the first contact surface 201 then contacts the cable surface for a second time, the first time being less than the second time.

[0036] For a certain clamping component 200, during the process of contacting and separating from the cable surface, its second contact surface 212 first contacts the cable surface for a first time. During the first time, the second contact surface 212 senses the temperature of the cable surface and acts on the pressure in the second chamber 203. Then, the pressure in the first chamber 202 is adjusted by the actuating part to change the degree of expansion and hardness of the first contact surface 201. Then, the first contact surface 201 contacts the cable surface for a second time. During this process, the cable is contacted and clamped by the first contact surface 201.

[0037] The second contact surface 212 is made of a rigid material, so that pressure changes within the second chamber 203 are not reflected through the second contact surface 212, but rather through the second piston component 206. It can be understood that, for the clamping component 200, apart from the material difference between the first contact surface 201 and the second contact surface 212, all other parts are made of rigid materials. The first time can be less than or much less than the second time; for example, the first time is 0.5s and the second time is 10s.

[0038] In one embodiment, when the contact between the second contact surface 212 and the cable surface is switched to the contact between the first contact surface 201 and the cable surface, the second contact surface 212 cleans the cable surface.

[0039] Due to the harsh outdoor environment, dust, sand, or mud easily adhere to the cable surface, causing abrasive wear between the cable surface and the clamping member 200 during transportation. To avoid this problem, the second contact surface 212 is made of a fur-like friction material. When the contact between the second contact surface 212 and the cable surface switches to the contact between the first contact surface 201 and the cable surface, the second contact surface 212 and the cable surface move relative to each other to clean the cable surface and prevent abrasive wear from damaging the cable surface and the clamping member 200.

[0040] In one embodiment, the cross-section of the first contact surface 201 and the cross-section of the second contact surface 212 are two adjacent arcs on a preset trajectory, which is a circle. The clamping member 200 can rotate around the center of the preset trajectory to switch the first contact surface 201 or the second contact surface 212 to contact the cable surface, and the clamping member 200 has a tendency to make the second contact surface 212 contact the cable surface. When the second contact surface 212 contacts the cable surface for a first time, the clamping member 200 rotates to make the first contact surface 201 contact the cable surface.

[0041] The cross-sections of the first contact surface 201 and the second contact surface 212 are both arcs. When the clamping member 200 rotates, the contact between the second contact surface 212 and the cable surface can be switched to the first contact surface 201 and the cable surface.

[0042] The clamping member 200 has a rotating shaft 213 that coincides with the center of a preset trajectory. The clamping member 200 can rotate around the rotating shaft 213. Both ends of the rotating shaft 213 are coaxially provided with friction wheels 214. The bracket 100 and the outer shell 102 are both provided with corresponding friction blocks 215. See below. Figure 11 The shape of the friction block 215 is consistent with the running trajectory of the friction wheel 214 when it reaches this point, so that the friction wheel 214 is always in contact with the friction block 215 when it reaches the friction block 215. When the second contact surface 212 contacts the cable surface for the first time, the friction wheel 214 contacts the friction block 215 and generates relative movement, causing the clamping member 200 to rotate until the first contact surface 201 contacts the cable surface. The sum of the first time and the second time depends on the effective conveying length of the circulating conveying assembly, or the effective clamping length of the clamping member 200 on the cable surface. The relative size of the first time and the second time can be controlled by setting the setting position of the friction block 215. For example, the closer the friction block 215 is to the end of the circulating conveying assembly, the smaller the first time and the larger the second time.

[0043] In one embodiment, see Figure 6 An elastic element 216 is provided between the clamping member 200 and the circulating conveying assembly. The elastic element 216 makes the clamping member 200 tend to approach the cable surface, so that the clamping member 200 can fully contact the sheath of the cable surface, increase the friction between the two, and ensure the conveying effect.

[0044] In one embodiment, the length direction of the clamping member 200 forms a first angle with the conveying direction of the circulating conveying assembly, and the bracket 100 is provided with a first adjustment part, which is used to adjust the first angle.

[0045] In practical engineering, cables all have sheaths, which generally include continuous smooth type and special surface type. Continuous smooth type is common in low voltage or ordinary environment cables, while special surface type includes corrugated, armored layer or outer braided layer, etc. Some special surface type sheaths will make the cable surface present an uneven shape, such as forming continuous spiral grooves. If traditional clamping blocks are used for clamping and conveying, insufficient contact and clamping are easy to occur, resulting in loss of friction between the clamping block and the cable surface, affecting the conveying effect. Therefore, the first angle is adjusted by the first adjustment part to adapt the first angle to the shape of the sheath, so that the clamping part 200 can fully contact the sheath on the cable surface, increase the friction between the two, and ensure the conveying effect.

[0046] Among them, see Figure 13 The first adjustment unit consists of a motor 217, a drive sprocket 218, and a driven sprocket 219. The bracket 100 is equipped with four motors 217, each with a corresponding power supply and controller to control start / stop and the timing of these actions. For a single circulating conveyor assembly, there are two sets of chains 101 and two motors 217. Each motor 217 has a fixed drive sprocket 218 and a driven sprocket 219 at its output end. The drive sprocket 218 of the first motor 217 cooperates with the driven sprocket 219 of the second motor 217 to drive the first set of chains 101. The drive sprocket 218 of the second motor 217 cooperates with the driven sprocket 219 of the first motor 217 to drive the second set of chains 101. Thus, when both motors 217 operate simultaneously, the circulating conveyor assembly can circulate. When the two motors 217 operate at different times, a displacement difference can be created between the two sets of chains 101.

[0047] Among them, see Figures 6 to 9 The length of the shaft 213 is greater than the vertical distance between the two sets of chains 101. Each link of the chain 101 has a groove 220, which is preferably perpendicular to the running direction of the chain 101. A first slide block 221 is slidably disposed within the groove 220. A support 222 is rotatably sleeved on the shaft 213. A pivot pin 223 is formed on the support 222 along the radial direction of the shaft 213. The end of the pivot pin 223 is rotatably inserted into the first slide block 221. A second slide block 224 is fixed on the shaft 213. A slider 225 is provided on the clamping member 200. The slider 225 is slidably disposed within the second slide block 224 by means of an elastic member 216, and the sliding direction is radial to the shaft 213. The elastic member 216 is a compression spring, so that the clamping member 200 fully contacts the sheath on the surface of the cable. A second torsion spring 226 is fitted onto the rotating shaft 213. One end of the second torsion spring 226 is fixed to the support 222, and the other end is fixed to the second slide 224, so that the clamping member 200 rotates to a preset orientation, that is, the clamping member 200 rotates to the orientation in which the second contact surface 212 contacts the cable surface. A first limiting block (not shown) is provided on the rotating shaft 213, and two second limiting blocks are provided at intervals along the circumference of the rotating shaft 213 on the support 222. When the rotating shaft 213 rotates relative to the support 222, the first limiting block is located between the two second limiting blocks, thereby restricting the rotating shaft 213 to rotate only within a certain angle range. This rotation range is just enough to switch the first contact surface 201 or the second contact surface 212 to contact the cable surface.

[0048] Before conveying the cable, for a single circulating conveyor assembly, its two motors 217 are started sequentially, creating a displacement difference between the two sets of chains 101. This causes the rotating shaft 213 to rotate radially by a certain angle. The arrangement of the chute 220, the first slide block 221, and the pivot pin 223 prevents motion interference during the rotation of the rotating shaft 213, thereby changing the first included angle, which is the angle between the length direction of the clamping member 200 and the conveying direction of the circulating conveyor assembly, i.e., the degree of inclination of the clamping member 200. It is worth noting that the first included angle of the two circulating conveyor assemblies must be adjusted to be the same, so that the clamping member 200 fully contacts the sheaths on both sides of the cable.

[0049] In one embodiment, see Figure 14 The bracket 100 is provided with a second adjustment part, which is used to adjust the distance between the two circulating conveying components.

[0050] The second adjustment unit includes a screw 104 and guide blocks 105. The screw 104 is horizontally rotatable on the bracket 100, and the length direction of the screw 104 is perpendicular to the conveying direction of the circulating conveying assembly. A handle is provided at the end of the screw 104. The guide blocks 105 are fixed on the housing 102. The screw 104 is threadedly connected to two guide blocks 105, and the threads of the two guide blocks 105 are opposite. Rotating the handle and the screw 104 causes the two guide blocks 105 to move in opposite directions, thereby adjusting the distance between the two circulating conveying assemblies to adapt to the conveying process of cables of different sizes.

[0051] Before conveying the cable, for a single circulating conveying assembly, the two motors 217 are started sequentially, creating a displacement difference between the two chains 101. This causes the rotating shaft 213 to rotate radially by a certain angle, thereby changing the first included angle—the angle between the length direction of the clamping member 200 and the conveying direction of the circulating conveying assembly, i.e., the inclination of the clamping member 200—to adapt to the shape of the sheath. Simultaneously, the elastic element 216 ensures that the clamping member 200 fully contacts the sheath of the cable surface, increasing the friction between them and guaranteeing the conveying effect. The cable end is then passed between the two support rollers 103 and placed between the two circulating conveying assemblies. Rotating the handle and screw 104 causes the two guide blocks 105 to move in opposite directions, adjusting the distance between the two circulating conveying assemblies until the clamping member 200 clamps the cable surface.

[0052] Then, all motors 217 are started synchronously, causing the two circulating conveying components to operate in sync. The clamping member 200 contacts and clamps the cable, moving forward. For a certain clamping member 200, during the process of contacting and separating from the cable surface, its second contact surface 212 first contacts the cable surface for a first moment. During this first moment, the second contact surface 212 senses the temperature of the cable surface and acts on the pressure in the second chamber 203. Then, the pressure in the first chamber 202 is adjusted by the actuating part to change the degree of expansion and hardness of the first contact surface 201, so that the hardness of the first contact surface 201 matches the hardness of the cable sheath. This ensures that the clamping member 200 applies appropriate squeezing force to the cable sheath, avoiding excessive squeezing force that could cause indentation or structural damage to the cable sheath, thus affecting power supply safety. Specifically, when the cable surface temperature decreases, the pressure in the second chamber 203 decreases, causing the second piston 206 to gradually move into the second chamber 203, reducing its volume to balance the pressure change. Simultaneously, the first piston 205 gradually moves into the first chamber 202, increasing its volume and thus increasing the pressure within it. This, in turn, increases the expansion and hardness of the first contact surface 201. Conversely, when the cable surface temperature increases, the pressure in the second chamber 203 increases, causing the second piston 206 to gradually move out of the second chamber 203, increasing its volume to balance the pressure change. Simultaneously, the first piston 205 gradually moves out of the first chamber 202, reducing its volume and thus decreasing the expansion and hardness of the first contact surface 201.

[0053] After the first time interval, the clamping member 200 moves to the friction block 215, where its friction wheel 214 contacts the friction block 215 and generates relative movement, causing the clamping member 200 to rotate until the first contact surface 201 contacts the cable surface, and this continues for a second time interval, during which the cable is contacted and clamped through the first contact surface 201. Furthermore, when the contact between the second contact surface 212 and the cable surface switches to the first contact surface 201, the second contact surface 212 and the cable surface generate relative movement to clean the cable surface, preventing abrasive wear that could damage the cable surface and the clamping member 200.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A cable transport device, characterized in that, The device includes a support frame and two circulating conveying assemblies mounted on the support frame. The two circulating conveying assemblies are spaced apart and their conveying directions are parallel to each other. Each circulating conveying assembly has a plurality of clamping members evenly spaced along its conveying direction. Each clamping member has a first contact surface for contacting and clamping a cable. The first contact surface is made of an elastic material. A first chamber is formed inside the clamping member and is filled with gas to cause the first contact surface to expand. The degree of expansion of the first contact surface is positively correlated with the pressure inside the first chamber. The clamping member is also provided with a control unit, which can sense the surface temperature of the cable and make the pressure in the first chamber negatively correlated with the surface temperature of the cable.

2. The cable transport equipment according to claim 1, characterized in that, The control unit includes a second chamber, an actuating part, and a second contact surface. The second chamber is formed within the clamping member and filled with gas. The pressure inside the second chamber is positively correlated with the surface temperature of the cable. The second chamber is separated from the first chamber, and the actuating part is located between the second chamber and the first chamber. The second contact surface is located on the clamping member and is used to contact the cable. The second contact surface can sense the surface temperature of the cable and transfer heat to the second chamber. The actuating part makes the pressure in the first chamber negatively correlated with the pressure in the second chamber.

3. The cable transport equipment according to claim 2, characterized in that, The actuating unit includes a first piston and a second piston that are spaced apart and both capable of moving along a first direction. The first direction is the direction of the line connecting the first chamber and the second chamber, and the moving directions of the first piston and the second piston are opposite. When the pressure in the second chamber decreases, the second piston gradually moves into the second chamber, and the first piston gradually moves into the first chamber, to increase the pressure in the first chamber; when the pressure in the second chamber increases, the second piston gradually moves out of the second chamber, and the first piston gradually moves out of the first chamber, to decrease the pressure in the first chamber.

4. The cable transport equipment according to claim 3, characterized in that, The actuating part further includes a gear and a toothed groove. The gear is disposed between the first piston and the second piston. The first piston and the second piston are provided with a plurality of toothed grooves at equal intervals on the side that is close to each other. The toothed grooves mesh with the gear. When the second piston moves along the first direction, the gear rotates to drive the first piston to move in the opposite direction along the first direction. The first piston and the second piston have a tendency to keep the expansion degree of the first contact surface at its initial value.

5. The cable transport equipment according to claim 2, characterized in that, When the clamping member contacts the cable and moves along the conveying direction of the circulating conveying assembly, the second contact surface contacts the cable surface for a first time, and the first contact surface contacts the cable surface for a second time, wherein the first time is less than the second time.

6. The cable transport equipment according to claim 5, characterized in that, When the contact between the second contact surface and the cable surface is switched to the first contact surface and the cable surface, the second contact surface cleans the cable surface.

7. The cable transport equipment according to claim 6, characterized in that, The cross-sections of the first contact surface and the second contact surface are two adjacent arcs on a preset trajectory, which is a circle. The clamping member can rotate around the center of the preset trajectory to switch between the first contact surface or the second contact surface contacting the cable surface, and the clamping member has a tendency to make the second contact surface contact the cable surface. When the second contact surface contacts the cable surface for the first time, the clamping member rotates to make the first contact surface contact the cable surface.

8. The cable transport equipment according to claim 1, characterized in that, An elastic element is provided between the clamping member and the circulating conveying assembly, the elastic element causing the clamping member to tend to approach the cable surface.

9. The cable transport equipment according to claim 1, characterized in that, The length direction of the clamping member forms a first angle with the conveying direction of the circulating conveying assembly, and the bracket is provided with a first adjustment part, which is used to adjust the first angle.

10. The cable transport equipment according to claim 1, characterized in that, The bracket is provided with a second adjustment part, which is used to adjust the distance between the two circulating conveying components.

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