Cable guiding device for portal crane in hydraulic power plant
By designing a cable guiding device suitable for gantry cranes in hydropower plants, and utilizing the rotation of the first sleeve and the sliding buffer mechanism of the second sleeve, the problem of cable damage during switching is solved, thereby achieving cable protection and improving equipment stability.
Patent Information
- Application Number
- CN202422919884.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The existing cable guide device in the hydropower plant gantry crane lacks effective protection, which makes the cable easily damaged during the switching process and cannot be flexibly adjusted to adapt to different cable lengths or position changes, posing a safety hazard.
A cable guiding device consisting of a first locking structure, a first sleeve, a second locking structure, and a second sleeve is adopted. Through the rotation of the first sleeve and the sliding buffer mechanism of the second sleeve, the cable is prevented from being excessively pulled, bent, or rubbed during the opening and closing of the gantry crane. The second sleeve slides in the locking structure to relieve tension and prevent the cable from stacking.
It effectively reduces the risk of cable damage, extends service life, lowers maintenance costs, prevents safety hazards, and improves equipment stability.
Smart Images
Figure CN223480641U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of cable protection devices, specifically a cable guiding device for a gantry crane in a hydropower plant. Background Technology
[0002] With the construction and development of hydropower plants, the opening and closing of gantry cranes requires the transmission of control signals or power via cables, making the normal operation and service life of these cables crucial. However, in actual operation, cables are often subjected to excessive stretching, bending, or friction during the opening and closing of gantry cranes, easily leading to uneven local stress or damage, thus affecting the stability of the equipment and the service life of the cables. Especially at turning points where the cable contacts fixed structures, due to the lack of suitable protection and guiding measures, the cable often experiences excessive tension or uneven friction, which not only exacerbates cable wear but may also lead to cable breakage or damage, posing safety hazards to the operation of the hydropower plant.
[0003] Existing cable guiding devices mostly use simple guide tubes or brackets for support and guidance. However, these devices often lack effective cable protection mechanisms, especially during the opening and closing of gantry cranes, where the tension and compression on the cables frequently lead to damage. Furthermore, some existing devices cannot be flexibly adjusted during installation to accommodate changes in cable length or position, resulting in poor equipment performance and even safety hazards. To solve these problems, a cable guiding device for hydropower plant gantry cranes is needed that can effectively guide cable movement while preventing damage to the cables during use due to pulling, bending, or friction. Utility Model Content
[0004] The purpose of this utility model is to provide a cable guiding device for a gantry crane in a hydropower plant to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a cable guiding device for a gantry crane in a hydropower plant, comprising a first locking structure, a first sleeve, a second locking structure, and a second sleeve. The first locking structure includes a first base plate, on which a first bolt and a first locking ring are provided. The first locking ring is connected to the first base plate via a second bolt. The first sleeve includes a first protective tube. The second locking structure includes a second base plate, on which a third bolt and two connecting blocks are provided. The connecting blocks are connected to the second base plate via a fourth bolt. A groove is provided inside the connecting blocks. Two winches are provided on the second base plate, and connecting ropes are provided on the winches. The connecting ropes pass through the connecting blocks and extend into the grooves. The second sleeve includes two second locking rings, each containing a second protective tube. A slider is provided on each side of the second locking ring, and the sliders are connected to the connecting ropes.
[0006] In a preferred embodiment of this utility model, the first protective tube is composed of a straight section and a bent section.
[0007] In a preferred embodiment of this invention, the outer diameter of the first protective tube is the same as the inner diameter of the first locking ring.
[0008] In a preferred embodiment of this invention, the first protective tube is rotatable within the first locking ring.
[0009] In a preferred embodiment of this invention, the outer diameter of the second protective tube is the same as the inner diameter of the second locking ring.
[0010] In a preferred embodiment of this invention, the second protective tube is rotatable within the second locking ring.
[0011] In a preferred embodiment of this utility model, the winch is driven by a motor, and when the gantry crane of the hydropower plant is closed, the winch can rotate to retract the connecting rope.
[0012] The cable guiding device for a gantry crane in a hydropower plant proposed in this utility model has the following beneficial effects:
[0013] The guiding and protective functions of the first and second sleeves effectively prevent the cable from being excessively stretched, bent, or rubbed during the opening and closing of the gantry crane. This protective mechanism greatly reduces the risk of cable damage, thereby significantly extending the cable's service life and reducing maintenance costs caused by cable failures.
[0014] The sliding action of the second sleeve in the second locking structure effectively alleviates the tension on the cable when the gantry crane is opened, while preventing the cable from being stretched and coiled up when the gantry crane is closed. This not only prevents damage to the cable caused by excessive pulling, but also effectively prevents safety hazards caused by cable entanglement or accumulation. Attached Figure Description
[0015] Figure 1 It is a structural diagram of the utility model;
[0016] Figure 2 This is a top view of the present invention;
[0017] Figure 3 This is a side view of the present invention;
[0018] Figure 4 This is a schematic diagram of the structure of the second sleeve of this utility model;
[0019] Figure 5 This is a schematic diagram of the second locking structure of this utility model;
[0020] Figure 6 This is a partial top sectional view of the present invention;
[0021] The components are: 1. First locking structure, 2. First sleeve, 3. Second locking structure, 4. Second sleeve, 11. First base plate, 12. First bolt, 13. First locking ring, 14. Second bolt, 21. First protective tube, 31. Second base plate, 32. Third bolt, 33. Connecting block, 34. Fourth bolt, 35. Slide groove, 36. Winch, 37. Connecting rope, 41. Second locking ring, 42. Second protective tube, 43. Sliding block. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-6 One specific embodiment of this utility model is as follows:
[0024] A cable guiding device for a gantry crane in a hydropower plant comprises a first locking structure 1, a first sleeve 2, a second locking structure 3, and a second sleeve 4. The first locking structure 1 is installed on the ground near the gantry crane. The first sleeve 2 can accommodate a cable. When the gantry crane is opened or closed, the cable drives the first sleeve 2 to rotate within the locking structure 1, preventing damage to the cable due to localized stress at the cable turning point. The second locking structure 3 is installed on the ground away from the gantry crane. The second sleeve 4 can be installed on the second locking structure 3, and a cable is installed within the second sleeve 4. When the gantry crane is opened, the cable is pulled outward. The second sleeve 4, located in the middle of the cable, slides within the second locking structure 3 to buffer the cable and prevent damage during the pulling process. When the gantry crane is closed, the second locking structure 3 pulls the second sleeve 4 back to its original position to prevent the cable from being stretched and locally coiled and stacked, causing safety hazards.
[0025] The first locking structure 1 includes a first base plate 11, on which a plurality of first bolts 12 are provided, and a first locking ring 13 is provided on the first base plate 11. The first locking ring 13 is connected to the first base plate 11 by a second bolt 14. The first sleeve 1 includes a first protective tube 21, which consists of a straight section and a 90° bent section. The outer diameter of the first protective tube 21 is the same as the inner diameter of the first locking ring 13, and the first protective tube 21 can rotate within the first locking ring 13.
[0026] The second locking mechanism 3 includes a second base plate 31, on which multiple third bolts 32 are provided. Two connecting blocks 33 are also provided on the second base plate 31, connected to the second base plate 31 by fourth bolts 34. A sliding groove 35 is provided inside the connecting block 33. Two winches 36 are provided on the second base plate 31, with connecting ropes 37 extending through the connecting blocks 33 into the sliding grooves 35. The second sleeve 4 includes two second locking rings 41, each containing a second protective tube 42. The outer diameter of the second protective tube 42 is the same as the inner diameter of the second locking ring 41, allowing it to rotate within the second locking ring 41. A slider 43 is provided on each side of the second locking ring 41, sliding within the sliding grooves 35. The slider 43 closest to the winch 36 can be connected to the connecting rope 37. The winch 36 is driven by a motor. When the gantry crane of the hydropower plant is opened, the cable is pulled outward, the winch 36 releases the connecting rope 37, and the slider 43 slides outward in the slide groove 35. When the gantry crane of the hydropower plant is closed, the winch 36 is driven by the motor to retract the connecting rope 37 and pull the slider 43 back inward, so as to achieve the function of retracting the elongated cable.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A cable guiding device for a gantry crane in a hydropower plant, characterized in that, It consists of a first locking structure (1), a first sleeve (2), a second locking structure (3), and a second sleeve (4). The first locking structure (1) includes a first base plate (11), on which a first bolt (12) is provided, and on which a first locking ring (13) is provided, and the first locking ring (13) is connected to the first base plate (11) by a second bolt (14). The first sleeve (2) includes a first protective tube (21). The second locking structure (3) includes a second base plate (31), on which a third bolt (32) is provided, and on which the second base plate (31) is connected to the first base plate (11) by a second bolt (14). The second base plate (31) is provided with two connecting blocks (33), which are connected to the second base plate (31) by the fourth bolt (34). The inner side of the connecting block (33) is provided with a sliding groove (35). The second base plate (31) is provided with two winches (36), and the winches (36) are provided with a connecting rope (37). The connecting rope (37) passes through the connecting block (33) and extends into the sliding groove (35). The second sleeve (4) includes two second locking rings (41). The second locking ring (41) is provided with a second protective tube (42). Each side of the second locking ring (41) is provided with a slider (43), which is connected to the connecting rope (37).
2. The cable guiding device for a gantry crane in a hydropower plant according to claim 1, characterized in that, The first protective tube (21) consists of a straight section and a bent section.
3. The cable guiding device for a hydropower plant gantry crane according to claim 1, characterized in that, The outer diameter of the first protective tube (21) is the same as the inner diameter of the first locking ring (13).
4. The cable guiding device for a hydropower plant gantry crane according to claim 1, characterized in that, The first protective tube (21) can rotate within the first locking ring (13).
5. A cable guiding device for a hydropower plant gantry crane according to claim 1, characterized in that, The outer diameter of the second protective tube (42) is the same as the inner diameter of the second locking ring (41).
6. A cable guiding device for a hydropower plant gantry crane according to claim 1, characterized in that, The second protective tube (42) is rotatable within the second locking ring (41).
7. A cable guiding device for a hydropower plant gantry crane according to claim 1, characterized in that, The winch (36) is driven by a motor. When the gantry crane of the hydropower plant is closed, the winch (36) can rotate to retract the connecting rope (37).