A cable rack for automation engineering

Abstract

The present invention relates to the technical field related to cable equipment, and discloses a cable rack for automated engineering. Through a variable diameter transmission mechanism, the weight of the cable on the cable winding drum is used to automatically control the transmission radius of the variable diameter transmission mechanism, that is, the transmission ratio of the belt drive is automatically adjusted. When the number of cables is large, the number of cable winding circles is large, the winding radius is large, and the cable weight is also heavy, the rotating drum will be further pressed downward, thereby increasing the transmission radius of the variable diameter transmission mechanism, and then reducing the cable winding and releasing speed. When the number of cables is small, the winding radius is small, and the weight is also small, the variable diameter transmission mechanism will rise, and then the radius of the variable diameter transmission mechanism will decrease, so that the winding and releasing speed will increase, thereby dynamically balancing the line speed of the cable winding and releasing line throughout the whole process, making the cable winding and releasing line speed more stable, which is conducive to the smooth progress of underwater cable winding and releasing.

Description

Technical Field

[0001] The invention relates to the technical field of cable equipment, in particular to a cable rack for automation engineering. Background Art

[0002] Underwater cable laying is an important part of automation projects such as electricity, communications, and construction. It involves multiple steps such as laying, reeling, and releasing cables. Various problems may arise during the laying process, so automated equipment is needed for maintenance or towing. The connecting cables of underwater equipment need to be arranged neatly, avoid crossing, maintain an appropriate bending radius, and be able to reel or release the cables quickly and accurately when needed.

[0003] When traditional cable racks are reeling in or releasing cables, the increase or decrease in the number of cables will cause the rotation radius to change, which will cause the cable reeling or releasing speed to be unstable. Specifically, when the number of cables on the cable reel decreases, the rotation radius decreases and the cable releasing speed slows down; conversely, when the number of cables increases, the rotation radius increases and the cable reeling speed speeds up. This speed instability will cause the cable pay-off speed to be inconsistent with the moving speed of the automation equipment, resulting in excessive tension or relaxation of the cable, which may affect the normal operation of the traction equipment and cause unnecessary damage to the cable itself. Summary of the invention

[0004] The object of the present invention is to provide a cable rack for automation engineering to solve the problem of unstable cable winding or releasing speed when winding or releasing cables in the current conventional cable racks mentioned in the background art.

[0005] To achieve the above object, the present invention provides the following technical solutions: a cable rack for automation engineering, comprising a flatbed car, a triangular bracket fixedly connected to the flatbed car, a rotating drum movably connected to the triangular bracket, a transmission shaft fixedly connected to one end of the rotating drum, a variable diameter transmission mechanism provided on the transmission shaft, a driving motor fixedly connected to the lower side of the triangular bracket, a small pulley fixedly connected to the output shaft of the driving motor, and the small pulley and the variable diameter transmission mechanism are connected by a transmission belt;

[0006] The triangular bracket is provided with a lifting guide rail, a lifting slider is slidably connected in the lifting guide rail, the lifting slider is rotatably connected to the transmission shaft through a bearing, an elastic support mechanism is provided below the lifting slider, the elastic support mechanism includes a lifting sleeve, the bottom end of the lifting sleeve is fixedly connected to the flatbed car, a lifting support rod is fixedly connected below the lifting slider, the lifting support rod is inserted into the lifting sleeve, a support spring is provided at the lower end of the lifting support rod, and the support spring lifts the lifting support rod upward;

[0007] A push-pull rod is passed through the rotating drum, and the push-pull rod is connected to support rods via a connecting rod expansion mechanism. A cable reel is arranged on the outer shell of the rotating drum, and the support rod is against the inner wall of the cable reel to fix the cable reel.

[0008] Furthermore, the variable diameter transmission mechanism includes an elastic telescopic rod, which is evenly arranged around the transmission shaft, and the end of the elastic telescopic rod is fixedly connected to a belt support rod, and the transmission belt is wrapped around the outside of the belt support rod.

[0009] Furthermore, the elastic telescopic rod includes a telescopic sleeve, which is fixedly connected to the transmission shaft, the telescopic rod is inserted into the telescopic sleeve, a pressure spring is arranged in the telescopic sleeve, the pressure spring pushes the telescopic rod outward, and the end of the telescopic rod is fixedly connected to the belt support rod.

[0010] Furthermore, the elastic telescopic rods are grouped into two groups, with a total of six groups, and the six groups of elastic telescopic rods are evenly arranged around the transmission shaft, and the ends of the two telescopic rods in each group of elastic telescopic rods are fixedly connected by a belt support rod.

[0011] Furthermore, the transmission belt is made of a metal material with small elastic deformation.

[0012] Furthermore, a preload adjustment block is fixedly connected to the lower end of the support spring, a threaded screw runs through the lifting sleeve, the preload adjustment block is transmission-connected to the threaded screw via a nut, an adjustment motor is fixedly connected to the lower end of the threaded screw, and the adjustment motor is fixedly installed at the bottom of the lifting sleeve.

[0013] Furthermore, one end of the push-pull rod is fixedly connected to a threaded rod, the end of the rotating drum is rotatably connected to a screw nut, the screw nut is fixedly connected to the threaded rod via a thread, and a clamping handwheel is fixedly connected to the outer side of the screw nut.

[0014] Furthermore, the connecting rod expansion mechanism includes a first rotating shaft, the push-pull rod is rotatably connected to a push-pull connecting rod via the first rotating shaft, the push-pull connecting rod is rotatably connected to a reducing push-pull rod via a second rotating shaft, a limiting cylinder is fixedly connected to the rotating drum, the reducing push-pull rod passes through the limiting cylinder, and the end of the reducing push-pull rod is fixedly connected to the support rod.

[0015] Furthermore, the variable diameter push-pull rod and the limiting cylinder are both perpendicular to the rotating drum and the push-pull rod, and the supporting rod is parallel to the rotating drum and the push-pull rod.

[0016] Furthermore, the push-pull connecting rods and the push-pull rods with variable diameters are evenly arranged around the push-pull rods, and both ends of each push-pull rod are fixedly connected to a push-pull rod with variable diameters.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention provides a cable rack for automation engineering. The transmission radius of the variable diameter transmission mechanism is automatically controlled by utilizing the weight of the cable on the cable winding drum through a variable diameter transmission mechanism, that is, the transmission ratio of the belt transmission is automatically adjusted. When the number of cables is large, the number of cable winding circles is large, the winding radius is large, and the cable weight is also heavy, the rotating drum will be further pressed downward, thereby increasing the transmission radius of the variable diameter transmission mechanism, and then reducing the cable winding and releasing speed. When the number of cables is small, the winding radius is small, and the cable weight is also small, the variable diameter transmission mechanism will rise, and then the radius of the variable diameter transmission mechanism will decrease, and the winding and releasing speed will be increased, thereby dynamically balancing the cable winding and releasing line speed throughout the entire process, making the cable winding and releasing line speed more stable, so that the motor can more accurately control the actual winding and releasing line speed of the cable, better match it with the moving speed of the underwater traction equipment, avoid excessive tension or excessive relaxation of the cable, and facilitate the normal operation of the underwater traction equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 2 The structure of the present invention is shown in FIG. Figure 2 ;

[0021] Figure 3 It is a schematic diagram of the structure of the variable diameter transmission mechanism of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the elastic support mechanism of the present invention;

[0023] Figure 5 Schematic diagram of the connecting rod expansion mechanism structure of the present invention Figure 1 ;

[0024] Figure 6 Schematic diagram of the connecting rod expansion mechanism structure of the present invention Figure 2 ;

[0025] Figure 7 For the present invention Figure 2 Enlarged structural diagram at A in the middle.

[0026] Numbers in the figure: 1, flatbed car; 2, triangular bracket; 3, rotating drum; 4, transmission shaft; 5, variable diameter transmission mechanism; 6, elastic telescopic rod; 601, telescopic sleeve; 602, telescopic rod; 603, pressure spring; 7, belt support rod; 8, driving motor; 9, small pulley; 10, transmission belt; 11, lifting guide rail; 12, lifting slider; 13, elastic support mechanism; 1301, lifting sleeve; 1302, lifting support rod; 1303, support spring; 1304, preload adjustment block; 1305, threaded screw; 1306, adjustment motor; 14, push-pull rod; 15, threaded rod; 16, screw nut; 17, clamping handwheel; 18, connecting rod expansion mechanism; 1801, first rotating shaft; 1802, push-pull connecting rod; 1803, second rotating shaft; 1804, variable diameter push-pull rod; 1805, limit cylinder; 19, support rod; 20, cable reel. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0029] Combination Figure 1 - Figure 7A cable rack for automation engineering includes a flatbed car 1, a triangular bracket 2 is fixedly connected to the flatbed car 1, a rotating drum 3 is movably connected to the triangular bracket 2, one end of the rotating drum 3 is fixedly connected to a transmission shaft 4, a variable diameter transmission mechanism 5 is arranged on the transmission shaft 4, a driving motor 8 is fixedly connected to the bottom of the triangular bracket 2, a small pulley 9 is fixedly connected to the output shaft of the driving motor 8, the small pulley 9 and the variable diameter transmission mechanism 5 are connected through a transmission belt 10, the variable diameter transmission mechanism 5 includes an elastic telescopic rod 6, the elastic telescopic rod 6 is evenly arranged around the transmission shaft 4, and the end of the elastic telescopic rod 6 is fixedly connected to a belt support rod 7, the transmission belt 10 is wrapped around the outside of the belt support rod 7, the elastic telescopic rod 6 includes a telescopic sleeve 601, the telescopic sleeve 601 is fixedly connected to the transmission shaft 4, and the telescopic sleeve 601 is inserted into the There is a telescopic rod 602, and a pressure spring 603 is arranged in the telescopic sleeve 601. The pressure spring 603 pushes the telescopic rod 602 outward, and the end of the telescopic rod 602 is fixedly connected to the belt support rod 7. The elastic telescopic rods 6 form a group of two, and a total of six groups are arranged, and the six groups of elastic telescopic rods 6 are evenly arranged around the transmission shaft 4. The ends of the two telescopic rods 602 in each group of elastic telescopic rods 6 are fixedly connected by the belt support rod 7. In this way, when the variable diameter transmission mechanism 5 is loaded and pressed down, since the transmission belt 10 adopts a metal transmission belt with small elastic deformation, the transmission belt 10 will not be stretched, so the transmission belt 10 will press the telescopic rod 602, and then the telescopic rod 602 will compress the pressure spring 603 and shrink into the shrink sleeve 601, thereby causing the diameter of the variable diameter transmission mechanism 5 to decrease, thereby changing the transmission ratio;

[0030] The triangular bracket 2 is provided with a lifting guide rail 11, and a lifting slider 12 is slidably connected in the lifting guide rail 11. The lifting slider 12 is rotatably connected to the transmission shaft 4 through a bearing. An elastic support mechanism 13 is provided below the lifting slider 12. The elastic support mechanism 13 includes a lifting sleeve 1301. The bottom end of the lifting sleeve 1301 is fixedly connected to the flatbed vehicle 1. A lifting support rod 1302 is fixedly connected below the lifting slider 12. The lifting support rod 1302 is inserted into the lifting sleeve 1301. A support spring 1303 is provided at the lower end of the lifting support rod 1302. The support spring 1303 lifts the lifting support rod 1302 upward. The lower end of the support spring 1303 is fixedly connected to a preload adjustment block 1304. A threaded screw 1305 runs through the sleeve 1301, and the pre-tightening adjustment block 1304 is connected to the threaded screw 1305 through a nut. The lower end of the threaded screw 1305 is fixedly connected to an adjusting motor 1306, and the adjusting motor 1306 is fixedly installed at the bottom of the lifting sleeve 1301. In this way, when the weight of the cable changes, the pressure on the support spring 1303 will also change, thereby changing its height. At the same time, the adjusting motor 1306 drives the threaded screw 1305 to rotate, thereby driving the pre-tightening adjustment block 1304 to move up and down, changing the pre-tightening force on the support spring 1303, thereby indirectly changing the elastic coefficient of the spring, so that it can cope with the retraction and release of different cables, making it more adaptable and more accurate.

[0031] A push-pull rod 14 runs through the rotating drum 3, and the push-pull rod 14 is connected to support rods 19 through a connecting rod expansion mechanism 18. A cable reel 20 is arranged on the outer shell of the rotating drum 3, and the support rod 19 abuts against the inner wall of the cable reel 20 to fix the cable reel 20. The connecting rod expansion mechanism 18 includes a first rotating shaft 1801, and a push-pull connecting rod 1802 is rotatably connected to the push-pull connecting rod 1802 through the first rotating shaft 1801. The push-pull connecting rod 1802 is rotatably connected to a reducing push-pull rod 1804 through a second rotating shaft 1803. A limiting cylinder 1805 is fixedly connected to the rotating drum 3, and the reducing push-pull rod 1804 runs through the limiting cylinder 1805, and the end of the reducing push-pull rod 1804 is fixedly connected to the support rod 19, and the push-pull connecting rod 1802 and The variable diameter push-pull rods 1804 are evenly arranged around the push-pull rod 14, and both ends of each push-pull rod 14 are fixedly connected to a variable diameter push-pull rod 1804. At the same time, one end of the push-pull rod 14 is fixedly connected to a threaded rod 15, and the end of the rotating drum 3 is rotatably connected to a lead screw nut 16, which is fixedly connected to the threaded rod 15 through a thread, and a clamping handwheel 17 is fixedly connected to the outer side of the lead screw nut 16. In this way, when installing the cable reel 20, the clamping handwheel 17 can be rotated to drive the rod nut 16 to rotate, and then the threaded rod 15 and the push-pull rod 14 are pushed into the rotating drum 3 through the threaded cooperation, so that the variable diameter push-pull rod 1804 is pushed by the push-pull connecting rod 1802, and the support rod 19 is pushed outward, thereby clamping the cable reel 20.

[0032] Working principle: When using a cable rack for automation engineering, the cable reel 20 must first be installed on the rotating drum 3. During installation, the cable reel 20 is placed on the outside of the rotating drum 3, and then the clamping handwheel 17 is tightened to drive the rod nut 16 to rotate, and then the threaded rod 15 and the push-pull rod 14 are pushed into the rotating drum 3 through threaded cooperation, thereby pushing the variable diameter push-pull rod 1804 through the push-pull connecting rod 1802, pushing the support rod 19 outward, and clamping the cable reel 20 from the inside, thereby realizing the clamping and centering of cable reel 20 of different sizes, making it more stable to reel and release the line.

[0033] When paying out the line, as there will be less and less cable on the cable reel 20, the rotation radius of the cable reel will become smaller and smaller. The paying out speed will decrease while the angular velocity remains unchanged, and the actual paying out speed will gradually decrease, which will affect the stability of paying out the line. In the present scheme, as there are fewer and fewer cables on the cable reel 20, its weight will gradually decrease. Then, under the push of the support spring 1303 in the elastic support mechanism 13, the lifting slider 12 will slide upward along the lifting slider 11, thereby driving the variable diameter transmission mechanism 5 to rise, so that the tensioning force of the transmission belt 10 will increase, and the elastic telescopic rod 6 will be compressed, so that the rotation radius of the variable diameter transmission mechanism 5 will be smaller, thereby increasing the transmission ratio of the belt drive, and improving the rotation speed of the cable reel 20, which offsets the reduction in linear speed caused by the reduction in the rotation radius of the cable reel, so that the paying out speed remains stable.

[0034] The function of the elastic support mechanism 13 is to balance the increase in linear speed caused by the increase in the rotation radius of the variable diameter transmission mechanism 5 and the decrease in linear speed caused by the decrease in the rotation radius of the cable reel. When the adjustment motor 1306 rotates, it will drive the preload adjustment block 1304 to rise and fall through the screw drive, thereby changing the preload force of the support spring 1303, thereby indirectly changing its elastic coefficient, thereby changing the descent height of the variable diameter transmission mechanism 5, and then accurately adjusting the transmission ratio, so that the increase in linear speed caused by the increase in the rotation radius of the variable diameter transmission mechanism 5 and the decrease in linear speed caused by the decrease in the rotation radius of the cable reel remain close, so as to adapt to the retraction and release of different cable reels.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable rack for automation engineering, comprising a flatbed vehicle (1), characterized in that: The flatbed vehicle (1) is fixedly connected to a triangular bracket (2), a rotating drum (3) is movably connected to the triangular bracket (2), a section of the rotating drum (3) is fixedly connected to a transmission shaft (4), a variable diameter transmission mechanism (5) is provided on the transmission shaft (4), a driving motor (8) is fixedly connected below the triangular bracket (2), an output shaft of the driving motor (8) is fixedly connected to a small pulley (9), and the small pulley (9) and the variable diameter transmission mechanism (5) are connected in transmission via a transmission belt (10); The triangular bracket (2) is provided with a lifting guide rail (11), a lifting slider (12) is slidably connected in the lifting guide rail (11), the lifting slider (12) is rotatably connected to the transmission shaft (4) through a bearing, an elastic support mechanism (13) is provided below the lifting slider (12), the elastic support mechanism (13) comprises a lifting sleeve (1301), the bottom end of the lifting sleeve (1301) is fixedly connected to the flatbed vehicle (1), a lifting support rod (1302) is fixedly connected below the lifting slider (12), the lifting support rod (1302) is inserted into the lifting sleeve (1301), a support spring (1303) is provided at the lower end of the lifting support rod (1302), and the support spring (1303) lifts the lifting support rod (1302) upwards; A push-pull rod (14) passes through the rotating drum (3), and the push-pull rod (14) is connected to support rods (19) via a connecting rod expansion mechanism (18). A cable reel (20) is provided on the outer shell of the rotating drum (3), and the support rod (19) abuts against the inner wall of the cable reel (20) to fix the cable reel (20).

2. The cable rack for automation engineering according to claim 1, characterized in that: The variable diameter transmission mechanism (5) comprises an elastic telescopic rod (6), the elastic telescopic rod (6) is evenly arranged around the transmission shaft (4), and the end of the elastic telescopic rod (6) is fixedly connected to a belt support rod (7), and the transmission belt (10) is wrapped around the outside of the belt support rod (7).

3. The cable rack for automation engineering according to claim 2, characterized in that: The elastic telescopic rod (6) comprises a telescopic sleeve (601), the telescopic sleeve (601) is fixedly connected to the transmission shaft (4), a telescopic rod (602) is inserted into the telescopic sleeve (601), a pressure spring (603) is arranged in the telescopic sleeve (601), the pressure spring (603) pushes the telescopic rod (602) outwards, and the end of the telescopic rod (602) is fixedly connected to the belt support rod (7).

4. The cable rack for automation engineering according to claim 3, characterized in that: The elastic telescopic rods (6) are arranged in groups of two each, with a total of six groups being provided, and the six groups of elastic telescopic rods (6) are evenly arranged around the transmission shaft (4), and the ends of the two telescopic rods (602) in each group of elastic telescopic rods (6) are fixedly connected via a belt support rod (7).

5. The cable rack for automation engineering according to claim 1, characterized in that: The transmission belt (10) is made of a metal material with small elastic deformation.

6. The cable rack for automation engineering according to claim 1, characterized in that: The lower end of the support spring (1303) is fixedly connected to a preload adjustment block (1304); a threaded screw (1305) runs through the lifting sleeve (1301); the preload adjustment block (1304) is transmission-connected to the threaded screw (1305) via a nut; the lower end of the threaded screw (1305) is fixedly connected to an adjustment motor (1306); and the adjustment motor (1306) is fixedly mounted at the bottom of the lifting sleeve (1301).

7. The cable rack for automation engineering according to claim 1, characterized in that: One end of the push-pull rod (14) is fixedly connected to a threaded rod (15), and the end of the rotating drum (3) is rotatably connected to a screw nut (16). The screw nut (16) is fixedly connected to the threaded rod (15) via a thread, and a clamping hand wheel (17) is fixedly connected to the outside of the screw nut (16).

8. The cable rack for automation engineering according to claim 1, characterized in that: The connecting rod expansion mechanism (18) comprises a first rotating shaft (1801), a push-pull connecting rod (1802) is rotatably connected to the push-pull rod (14) via the first rotating shaft (1801), the push-pull connecting rod (1802) is rotatably connected to a reducing push-pull rod (1804) via a second rotating shaft (1803), a limiting cylinder (1805) is fixedly connected to the rotating drum (3), the reducing push-pull rod (1804) passes through the limiting cylinder (1805), and the end of the reducing push-pull rod (1804) is fixedly connected to the support rod (19).

9. The cable rack for automation engineering according to claim 8, characterized in that: The variable diameter push-pull rod (1804) and the limiting cylinder (1805) are both perpendicular to the rotating drum (3) and the push-pull rod (14), and the supporting rod (19) is parallel to the rotating drum (3) and the push-pull rod (14).

10. The cable rack for automation engineering according to claim 9, characterized in that: The push-pull connecting rod (1802) and the variable-diameter push-pull rod (1804) are evenly arranged around the push-pull rod (14), and both ends of each push-pull rod (14) are fixedly connected to a variable-diameter push-pull rod (1804).

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