Combined lifting type cable pay-off rack
Technical Field
The utility model relates to the technical field of electric power construction matching devices, in particular to a combined lifting type cable pay-off rack.
Background
The cable is made of one or more mutually insulated conductors and an outer insulating protection layer, is used for high-voltage and high-current cables, generally has larger diameter, and heavier gravity per meter, such as a 400-square copper core cable, the outer diameter of a sheath of the cable can reach 40mm, and the weight per meter can reach 8 kilograms; therefore, the laying of the thick cable generally takes a steel pipe or a steel bar as a mandrel on a cable reel for winding the cable, and the cable reel is erected by using the mandrel and a bracket, and the cable reel is rotated around the mandrel, thereby winding and unwinding the cable. However, because the cable reel is in sliding friction with the mandrel, it is laborious to rotate and, at the same time, inconvenient to place the cable reel on the stand.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a combined lifting type cable pay-off rack which adopts a lifting support and a roll shaft in rolling connection, so that the cable laying construction is facilitated, and the labor and the time are saved.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a combined lifting type cable pay-off rack comprises a central shaft inserted into a central hole of a cable reel, wherein lifting supports are arranged at two ends of the central shaft; the central shaft comprises a core shaft and a roller shaft sleeved on the outer layer of the core shaft, and the core shaft is in rolling connection with the roller shaft through a bearing;
the lifting support comprises a lower base plate and an upper support, a left upper connecting rod, a left lower connecting rod, a right upper connecting rod and a right lower connecting rod are arranged between the lower base plate and the upper support, the upper end of the left upper connecting rod is hinged with the left side of the upper support, the lower end of the left lower connecting rod is hinged with the left side of the lower base plate, the lower end of the left upper connecting rod is hinged with the upper end of the left lower connecting rod, the upper end of the right upper connecting rod is hinged with the right side of the upper support, the lower end of the right lower connecting rod is hinged with the right side of the lower base plate, and the lower end of the right upper connecting rod is hinged with the upper end of the left lower connecting rod;
the hinge point of the upper left connecting rod and the hinge point of the lower left connecting rod are rotatably connected with a left module, the hinge point of the upper right connecting rod and the hinge point of the lower right connecting rod are rotatably connected with a right module, the right module is rotatably connected with an adjusting rod, and the other end of the adjusting rod penetrates through the left module and is in threaded connection with the left module.
Further, the bearing is a double-row roller bearing, the core shaft is welded with a stop plate which is abutted against the inner side of the bearing inner ring, and the core shaft is sleeved with a distance sleeve which is abutted against the outer side of the bearing inner ring.
Furthermore, two ends of the roll shaft are sleeved with supporting sleeves, the outer circumferences of the supporting sleeves are abutted to the inner wall of the central hole of the cable.
Furthermore, the adjusting rod is provided with an operating hole which is convenient for rotating the adjusting rod to rotate.
Furthermore, the left side and the right side of the two lifting brackets are both fixed with connecting rods through bolts.
The utility model has the beneficial effects that: a combined lifting type cable pay-off rack comprises a central shaft inserted into a central hole of a cable reel, wherein two ends of the central shaft are provided with lifting supports; the central shaft comprises a mandrel and a roller shaft sleeved on the outer layer of the mandrel, and the mandrel is in rolling connection with the roller shaft through a bearing. The utility model has scientific structure and can be divided into three parts for convenient transportation, when in use, the mandrel and the roll shaft which are sleeved together are firstly inserted into the central hole of the cable reel, then the lifting brackets are assembled at the two ends of the mandrel, and then the height of the lifting bracket is adjusted, thereby leading the cable reel to be convenient to rotate, saving labor and time and improving the operation efficiency.
Drawings
FIG. 1 is a perspective view of a combination lift cable payoff stand of the present invention;
FIG. 2 is a front view of a combination lift cable payoff stand of the present invention;
fig. 3 is a cross-sectional view of fig. 2.
Description of reference numerals:
1-central shaft, 11-mandrel, 12-roll shaft, 13-bearing, 14-distance sleeve, 15-supporting sleeve, 2-lifting support, 21-lower bottom plate, 22-upper support, 23-left upper connecting rod, 24-left lower connecting rod, 25-right upper connecting rod, 26-right lower connecting rod, 27-left module, 28-right module, 29-regulating rod, 291-operation hole and 3-connecting rod.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific examples, which are not intended to limit the scope of the utility model.
As shown in fig. 1 to 3, the combined lifting type cable pay-off rack of the present embodiment includes a central shaft 1 inserted into a central hole of a cable reel, and lifting brackets 2 are disposed at two ends of the central shaft 1; the central shaft 1 comprises a mandrel 11 and a roller shaft 12 sleeved on the outer layer of the mandrel 11, and the mandrel 11 is in rolling connection with the roller shaft 12 through a bearing 13; the lifting support 2 comprises a lower base plate 21 and an upper support 22, a left upper connecting rod 23, a left lower connecting rod 24, a right upper connecting rod 25 and a right lower connecting rod 26 are arranged between the lower base plate 21 and the upper support 22, the upper end of the left upper connecting rod 23 is hinged with the left side of the upper support 22, the lower end of the left lower connecting rod 24 is hinged with the left side of the lower base plate 21, the lower end of the left upper connecting rod 23 is hinged with the upper end of the left lower connecting rod 24, the upper end of the right upper connecting rod 25 is hinged with the right side of the upper support 22, the lower end of the right lower connecting rod 26 is hinged with the right side of the lower base plate 21, and the lower end of the right upper connecting rod 25 is hinged with the upper end of the left lower connecting rod 26; the hinge point of the left upper connecting rod 23 and the hinge point of the left lower connecting rod 24 are rotatably connected with a left module 27, the hinge point of the right upper connecting rod 25 and the hinge point of the right lower connecting rod 26 are rotatably connected with a right module 28, the right module 28 is rotatably connected with an adjusting rod 29, and the other end of the adjusting rod 29 penetrates through the left module 27 and is in threaded connection with the left module 27.
The utility model is divided into three parts, during operation, the central shaft 1 is firstly inserted into a central hole of a cable reel, then the lifting brackets 2 are respectively fixed at two ends of the central shaft 11 through bolts, and then the height of the lifting brackets 2 is adjusted, so that the cable reel is lifted to be separated from the ground and is convenient to rotate. In the embodiment, in order to improve the supporting strength of the bearing 13, the bearing 13 adopts a double-row roller bearing; in order to position the bearing 13 and prevent the rotating cable reel from abutting against the lifting support 2, a stop plate abutting against the inner side of the inner ring of the bearing 13 is welded on the mandrel 11, and a distance sleeve 14 abutting against the outer side of the inner ring of the bearing 13 is sleeved on the mandrel 11; in order to adapt to the sizes of the central holes of different cable reels, two ends of the roll shaft 12 are sleeved with supporting sleeves 15 of which the outer circumferences are butted against the inner wall of the central hole of the cable; when the height of the lifting bracket 2 is adjusted, a round bar is inserted into the operation hole 291 provided in the adjustment lever 29, so that the adjustment lever 29 is rotated, thereby adjusting the distance between the left block 27 and the right block 28, thereby rotating the link between the lower plate 21 and the upper support 22, thereby adjusting the height of the lifting bracket 2, where the adjustment lever 29 cannot slide with respect to the right block 28.
In order to prevent the lifting brackets 2 from toppling over during operation, the left side and the right side of the two lifting brackets 2 are respectively fixed with the connecting rod 3 through bolts, specifically, the connecting rod 3 is provided with a long hole, the lower bottom plate 21 is provided with a screw hole or a through hole, and then the two ends of the connecting rod 3 are respectively fixed on the lower bottom plates 21 on the left side and the right side through bolts.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.