Novel heavy hammer type carrier cable tensioning device

Abstract

The utility model provides a novel heavy hammer type carrier cable tensioning device, which optimizes the layout of the tensioning device and realizes compact tension adjustment by canceling structures such as a moving trolley, a circuitous wheel and a tensioning cable, and comprises a fixed guide wheel group, a heavy hammer duplex guide wheel and a heavy hammer component, the fixed guide wheel group comprises a first guide wheel, a second guide wheel and a third guide wheel; the heavy hammer duplex guide wheel is provided with a first wheel body and a second wheel body which are connected in parallel, the heavy hammer duplex guide wheel is arranged under the third guide wheel, and an included angle beta is formed between the axis of the heavy hammer duplex guide wheel and the axis of the third guide wheel; the first guide wheel and the second guide wheel are mounted in parallel in a staggered manner, and the staggered distance is equal to the tread of the heavy punch duplex guide wheel; the carrying cable sequentially penetrates through the second guide wheel, the first wheel body, the third guide wheel, the second wheel body and the first guide wheel, the entering direction of the carrying cable is parallel to the penetrating direction of the carrying cable, and a closed-loop tensioning system is formed. And a heavy hammer of the heavy hammer assembly is fixedly arranged below the heavy hammer duplex guide wheel.

Description

Technical Field

[0001] This utility model relates to the field of cableway transportation machinery technology, specifically to a novel counterweight-type cable tensioning device, which is suitable for transportation systems such as passenger cableways and freight cableways that require constant tension maintenance, and achieves efficient tension adjustment through simplified structure. Background Technology

[0002] For traditional counterweight tensioning devices, please refer to [link / reference]. Figure 1 The structure includes a mobile trolley (a), a detour wheel (b) mounted on the trolley, a large track (c) supporting the trolley, a double guide wheel (d) connecting one end of the trolley, a guide wheel assembly (e) and a counterweight (f), a tension cable (g) connecting the double guide wheel (d) and the guide wheel assembly (e), an electric winch (h), and a counterweight guide wheel (i), among other components. Tension adjustment is achieved through the reciprocating motion of the trolley and the pulley system of the tension cable suspending the counterweight. However, this structure has the following drawbacks:

[0003] 1. Complex structure: It requires more than 14 types of components such as moving trolleys, detour wheels, and tensioning cables, resulting in high installation and maintenance costs;

[0004] 2. Large footprint: The travel distance of the mobile trolley needs to be twice that of the counterweight, resulting in an increase of approximately 40% in the space occupied by the equipment;

[0005] 3. Slow dynamic response: Multi-stage pulley transmission leads to increased system inertia and significant delay in tension adjustment. Utility Model Content

[0006] To address the shortcomings of traditional structures, such as complex structure, large footprint, and slow dynamic response, this utility model proposes a novel, highly integrated, weighted carrier cable tensioning device. By eliminating the moving trolley, detour wheel, and tensioning cable, and optimizing the layout of the guide wheel, double-linked guide wheel, and weight assembly, compact tension adjustment is achieved.

[0007] The embodiments of this utility model are implemented as follows:

[0008] A novel counterweight-type carrier cable tensioning device includes:

[0009] A fixed guide wheel assembly includes a first guide wheel, a second guide wheel, and a third guide wheel, wherein the height of the third guide wheel is less than that of the first / second guide wheel;

[0010] The double-axis guide wheel with counterweight has two parallel first wheel bodies and second wheel bodies. The double-axis guide wheel with counterweight is located directly below the third guide wheel, and the axis lines of the double-axis guide wheel with counterweight and the third guide wheel are at an angle β. The first guide wheel and the second guide wheel are installed in parallel and offset, and the offset distance is equal to the wheel spacing of the double-axis guide wheel with counterweight. The carrier cable passes through the second guide wheel, the first wheel body, the third guide wheel, the second wheel body, and the first guide wheel in sequence. The entry direction and exit direction of the carrier cable are parallel, forming a closed-loop tensioning system.

[0011] The counterweight assembly has its counterweight fixedly positioned below the double-linked counterweight guide wheels. When the entry speed of the carrier cable is greater than its exit speed, the length of the carrier cable increases at the fixed guide wheel assembly and the double-linked counterweight guide wheels, causing the counterweight to move vertically downward. When the entry speed of the carrier cable is less than its exit speed, the length of the carrier cable decreases at the fixed guide wheel assembly and the double-linked counterweight guide wheels, causing the counterweight to move vertically upward.

[0012] In a preferred embodiment of the present invention, the aforementioned counterweight assembly further includes parallel guide columns, with the counterweight positioned between the two guide columns. A linear track is vertically arranged on the inner side of the two guide columns, and the counterweight moves vertically along the linear track.

[0013] In a preferred embodiment of this utility model, the first wheel and the second wheel of the above-mentioned double-linked guide wheel of the counterweight share a common support shaft, and the rotational speeds of the first wheel and the second wheel are independent.

[0014] In a preferred embodiment of this utility model, the inner diameter of the groove of the double-linked guide wheel of the above-mentioned counterweight is equal to the vertical distance between the first guide wheel and the second guide wheel.

[0015] In a preferred embodiment of this utility model, the included angle β is greater than 5° and less than 30°.

[0016] In a preferred embodiment of this utility model, the diameter of the first guide wheel is equal to the diameter of the second guide wheel, the diameter of the third guide wheel is less than the diameter of the double-linked guide wheel of the counterweight, and the axis of the first guide wheel / second guide wheel is perpendicular to the axis of the double-linked guide wheel of the counterweight.

[0017] In a preferred embodiment of this invention, the surface of the linear track is covered with a graphene friction-reducing layer, and a ball bearing guide sleeve is provided between the counterweight and the track.

[0018] In a preferred embodiment of this utility model, the support shaft of the above-mentioned double guide wheel is a hollow titanium alloy structure, and the wheel body is made of carbon fiber composite material.

[0019] In a preferred embodiment of this utility model, the top and bottom of the aforementioned hammer are provided with buffer structures.

[0020] In a preferred embodiment of this utility model, a hydraulic fine-tuning device is provided on the mounting base of the third guide wheel. The hydraulic fine-tuning device is connected to the mounting base through a hydraulic push rod and supports real-time adjustment of the β angle.

[0021] The beneficial effects of this utility model embodiment are:

[0022] 1. A closed-loop tensioning system is formed by combining a fixed guide wheel group, a double-linked guide wheel with a counterweight assembly and a carrier cable, eliminating the use of a moving trolley, a detour wheel, and a tensioning cable, thus simplifying the structure and reducing the number of parts by 50%.

[0023] 2. No travel restrictions for the mobile cart, further optimizing the footprint, reducing the footprint by 38.6%;

[0024] 3. The counterweight directly links to the double guide wheels, improving dynamic response and reducing adjustment time to 60% of that of traditional structures;

[0025] 4. The integrated design reduces wear-prone parts such as tension cables, lowering maintenance costs by more than 30%. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of an existing tensioning device structure;

[0028] Figure 2 This is a schematic diagram of the structure of the novel counterweight-type transport cable tensioning device according to an embodiment of the present utility model;

[0029] Figure 3 This is a schematic diagram of the double-linked guide wheel structure of the counterweight according to an embodiment of the present utility model;

[0030] Figure 4 A horizontal view showing the positional relationship between the double-linked guide wheel of the counterweight and the first and second guide wheels in an embodiment of this utility model;

[0031] Figure 5 This is a schematic diagram of the counterweight assembly structure according to an embodiment of the present utility model;

[0032] Figure 6 This is a horizontal view showing the positional relationship between the third guide wheel, the first guide wheel, and the second guide wheel in an embodiment of this utility model.

[0033] Icons: Fixed guide wheel assembly 110; First guide wheel 111; Second guide wheel 112; Third guide wheel 113; Double guide wheel with counterweight 120; First wheel body 121; Second wheel body 122; Support shaft 123; Counterweight assembly 130; Counterweight 131; Guide column 132; Hydraulic buffer 133; Rubber shock absorber 134; Mechanical limit block 135; Transport cable 140; Hydraulic fine-tuning device 150; Hydraulic push rod 151;

[0034] Icons for a traditional counterweight tensioning device: a) Moving trolley; b) Detour wheel; c) Large track; d) Double guide wheel; e) Guide wheel assembly; f) Counterweight; g) Tensioning cable; h) Electric winch; i) Counterweight guide wheel. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0040] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] First Embodiment

[0042] Please see Figure 2-5 This embodiment provides a novel counterweight-type carrier cable tensioning device, which includes a fixed guide wheel group 110, a double counterweight guide wheel 120 located below the fixed guide wheel group 110, and a counterweight assembly 130 connected to the double counterweight guide wheel 120.

[0043] The fixed guide wheel assembly 110 includes a first guide wheel 111, a second guide wheel 112, and a third guide wheel 113. The positions of the three guide wheels in the fixed guide wheel assembly 110 are fixed, and the perpendicularity deviation of the fixed guide wheel assembly 110 is ≤0.1mm / m. The diameter of the first guide wheel 111 is equal to the diameter of the second guide wheel 112, ranging from Φ600-800mm, meaning the first guide wheel 111 and the second guide wheel 112 are guide wheels of the same specification. The diameter of the first guide wheel 111 / second guide wheel 112 is less than the diameter of the third guide wheel 113, ranging from Φ800-1000mm. The third guide wheel 113 is the same type of guide wheel as the first guide wheel 111 / second guide wheel 112, but the third guide wheel 113 is slightly larger.

[0044] Regarding the arrangement of the three guide wheels, the second guide wheel 112 is positioned higher than the first guide wheel 111, and the first guide wheel 111 is positioned higher than the third guide wheel 113. The transport cable 140 directly enters from the second guide wheel 112 and exits from the first guide wheel 111, directly avoiding the use of a moving trolley, tension cable, etc. The first guide wheel 111 and the second guide wheel 112 are installed in parallel with a staggered offset, and the offset distance is equal to the wheel spacing of the double-linked counterweight guide wheel 120.

[0045] Infrared sensors can also be added to the guide wheel rim to detect the 140° deviation of the transport cable and trigger an emergency stop.

[0046] The double-linked guide wheel 120 for the counterweight consists of two parallel wheel bodies 121 and 122, which are independent of each other. The rotational speeds of the two wheel bodies are independent, but the first wheel body 121 and the second wheel body 122 of the double-linked guide wheel 120 for the counterweight share a support shaft 123. The lower part of the double-linked guide wheel 120 for the counterweight is directly connected to the counterweight. The coaxiality tolerance of the double-linked guide wheel 120 for the counterweight is IT6 grade.

[0047] The inner diameter of the groove of the double-linked guide wheel 120 with counterweight is equal to the vertical distance between the first guide wheel 111 and the second guide wheel 112, and the axis of the first guide wheel 111 / second guide wheel 112 is perpendicular to the axis of the double-linked guide wheel 120 with counterweight.

[0048] The double-linked guide wheel 120 with a counterweight is positioned directly below the third guide wheel 113, and the axis lines of the double-linked guide wheel 120 with a counterweight and the third guide wheel 113 are at an angle β, which is greater than 5° and less than 30°.

[0049] Meanwhile, the value of the included angle β can satisfy the relationship with the diameter d of the carrier cable 140: β=arcsin(d / 2δ)+5°, where δ is the misalignment amount, thus optimizing the guiding efficiency and spatial layout of the carrier cable 140.

[0050] The value of the included angle β can also satisfy the relationship β=arcsin(δ / D) with the diameter D of the double guide wheel of the counterweight.

[0051] For example, passenger cableway parameters: β=30°, counterweight mass m=2000kg, applicable cable speed Vi≤5m / s; freight cableway parameters: β=20°, counterweight mass m=5000kg, applicable cable speed Vi≤3m / s.

[0052] The diameter of the first guide wheel 111 / the diameter of the second guide wheel 112 < the diameter of the third guide wheel 113 < the diameter of the double-linked counterweight guide wheel 120. The diameter of the double-linked counterweight guide wheel 120 is the largest, ranging from Φ1000-1200mm.

[0053] The double-linked guide wheel 120 with a heavy hammer adopts a lightweight design. The support shaft 123 of the double-linked guide wheel 120 with a heavy hammer is replaced with a hollow titanium alloy material (density 4.5g / cm³), and the wheel body is made of carbon fiber composite material, which reduces the overall weight by 30%-40%. This can reduce the inertia of the heavy hammer, improve the dynamic response speed, and reduce wear on the track.

[0054] The carrier cable 140 passes sequentially through the second guide wheel 112, the first wheel body 121, the third guide wheel 113, the second wheel body 122, and the first guide wheel 111. The entry and exit directions of the carrier cable 140 are parallel, forming a closed-loop tensioning system. After the carrier cable 140 is wound, it needs to be pre-tensioned to an initial tension F0 = 0.8 mg.

[0055] The counterweight assembly 130 has a counterweight 131 fixedly mounted below the double-linked guide wheel 120.

[0056] The counterweight assembly 130 also includes parallel guide posts 132, with the counterweight 131 positioned between the two guide posts 132. A linear track is vertically arranged on the inner side of each guide post 132. A graphene coating (friction coefficient ≤0.1) is applied to the surface of the linear track on the guide posts 132, and a ball bearing guide sleeve is integrated. The counterweight 131 moves vertically along the linear track. This design reduces the moving resistance of the counterweight 131, minimizes energy loss, and avoids the risk of jamming. Correspondingly, a mechanical limit block 135 is provided on each guide post 132 10cm from the top / bottom of the track to prevent the counterweight 131 from overtraveling.

[0057] In this embodiment, the position of the guide post 132 is fixed, the guide post 132 is made of I-beam, and the straightness error of the track is <1 / 1000; the gap between the counterweight 131 and the straight track is ≤2mm to ensure vertical movement stability.

[0058] Furthermore, a hydraulic buffer 133 (damping coefficient c=1500 N·s / m) can be added to the bottom of the hammer 131, and a rubber shock absorber 134 (Shore hardness 70A) can be installed on the top to suppress the impact load when the hammer 131 stops suddenly or changes speed, thereby extending the equipment life.

[0059] When the entry speed of the carrier cable 140 is greater than its exit speed, the length of the carrier cable 140 increases at the fixed guide wheel assembly 110 and the double guide wheel 120 for the counterweight, causing the counterweight 131 to move vertically downwards. When the entry speed of the carrier cable 140 is less than its exit speed, the length of the carrier cable 140 decreases at the fixed guide wheel assembly 110 and the double guide wheel 120 for the counterweight, causing the counterweight 131 to move vertically upwards. Directly using the carrier cable 140 to bypass the guide wheels and suspend the counterweight 131 at the double guide wheel 120, thus driving the counterweight 131 to move up and down, results in a simpler structure, lower manufacturing cost, and smaller footprint compared to traditional counterweight 131 tensioning devices.

[0060] Second Embodiment

[0061] Please refer to Figure 6This embodiment provides a novel counterweight 131 type carrier cable 140 tensioning device, which is largely the same as the novel counterweight 131 type carrier cable 140 tensioning device in the first embodiment. The difference lies in the addition of a hydraulic fine-tuning device 150 to the mounting base of the third guide wheel 113 in this embodiment, allowing the β angle to be dynamically adjusted within the range of 15°-45°. It can adapt to different carrier cable 140 diameters (Φ20-50mm) and tension fluctuation scenarios, improving system compatibility. Specifically, the hydraulic fine-tuning device 150 can be connected to a hydraulic push rod 151 and a deflectable base connected to the third guide wheel 113. When the hydraulic push rod moves, it pushes the third guide wheel 113 to deflect, supporting real-time adjustment of the β angle.

[0062] In summary, the new type 131 counterweight cable tensioning device of this utility model changes the previous double-cable closed loop to the current single-cable closed loop, reducing the use of mobile trolleys, saving costs and floor space, and enabling efficient tension adjustment.

[0063] This specification describes examples of embodiments of the present invention, but does not imply that these embodiments illustrate and describe all possible forms of the present invention. It should be understood that the embodiments in the specification can be implemented in various alternative forms. The drawings are not necessarily drawn to scale; some features may be enlarged or reduced to show details of specific components. The specific structural and functional details disclosed should not be construed as limiting, but merely as a representative basis for teaching those skilled in the art to implement the present invention in various forms. Those skilled in the art will understand that multiple features illustrated and described with reference to any of the drawings can be combined with features illustrated in one or more other drawings to form embodiments not explicitly illustrated or described. The illustrated combinations of features provide representative embodiments for typical applications. However, various combinations and variations of features consistent with the teachings of the present invention may be used as needed for specific applications or implementations.

[0064] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel counterweight-type cable tensioning device, characterized in that, include: A fixed guide wheel assembly includes a first guide wheel, a second guide wheel, and a third guide wheel, wherein the height of the third guide wheel is less than that of the first / second guide wheel; The double-axis guide wheel with a counterweight has two parallel first wheel bodies and second wheel bodies. The double-axis guide wheel with a counterweight is located directly below the third guide wheel, and the axis lines of the double-axis guide wheel with a counterweight and the third guide wheel are at an angle β. The first guide wheel and the second guide wheel are installed in parallel and offset, and the offset distance is equal to the wheel spacing of the double-axis guide wheel with a counterweight. The carrier cable passes through the second guide wheel, the first wheel body, the third guide wheel, the second wheel body, and the first guide wheel in sequence. The entry direction and exit direction of the carrier cable are parallel, forming a closed-loop tensioning system. A counterweight assembly, wherein the counterweight is fixedly disposed below the double-linked counterweight guide wheels; when the entry speed of the transport cable is greater than the exit speed, the cable length of the transport cable increases at the fixed guide wheel assembly and the double-linked counterweight guide wheels, and the counterweight moves vertically downward; when the entry speed of the transport cable is less than the exit speed, the cable length of the transport cable decreases at the fixed guide wheel assembly and the double-linked counterweight guide wheels, and the counterweight moves vertically upward.

2. The novel counterweight-type carrier cable tensioning device according to claim 1, characterized in that, The counterweight assembly also includes parallel guide columns, with the counterweight positioned between the two guide columns. A linear track is vertically arranged on the inner side of the two guide columns, and the counterweight moves vertically along the linear track.

3. The novel counterweight-type carrier cable tensioning device according to claim 1, characterized in that, The first and second wheels of the double-linked guide wheel of the weight share a common support shaft, and the rotational speeds of the first and second wheels are independent.

4. The novel counterweight-type transport cable tensioning device according to claim 1, characterized in that, The inner diameter of the groove of the double-linked guide wheel of the weight is equal to the vertical distance between the first guide wheel and the second guide wheel.

5. The novel counterweight-type transport cable tensioning device according to claim 1, characterized in that, The included angle β is greater than 5° and less than 30°.

6. The novel counterweight-type carrier cable tensioning device according to claim 1, characterized in that, The diameter of the first guide wheel is equal to the diameter of the second guide wheel, the diameter of the third guide wheel is less than the diameter of the double-linked guide wheel of the counterweight, and the axis of the first guide wheel / second guide wheel is perpendicular to the axis of the double-linked guide wheel of the counterweight.

7. The novel counterweight-type transport cable tensioning device according to claim 2, characterized in that, The surface of the linear track is covered with a graphene friction-reducing layer, and a ball bearing guide sleeve is installed between the counterweight and the track.

8. The novel counterweight-type carrier cable tensioning device according to claim 3, characterized in that, The support shaft of the double guide wheel is a hollow titanium alloy structure, and the wheel body is made of carbon fiber composite material.

9. The novel counterweight-type carrier cable tensioning device according to claim 1, characterized in that, The top and bottom of the hammer are equipped with buffer structures.

10. The novel counterweight-type carrier cable tensioning device according to any one of claims 1-9, characterized in that, The mounting base of the third guide wheel is equipped with a hydraulic fine-tuning device, which is connected to the mounting base via a hydraulic push rod and supports real-time adjustment of the β angle.

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