Novel two-way freight cableway swinging saddle
By introducing a main shaft and bearing assembly for the cable wheel in the swing saddle of the freight cableway, combined with a lubrication structure, the problems of vibration and wear of traditional saddles in complex environments are solved, thereby improving the stability and durability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN CHUANKUANG CABLEWAY ENG CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional rocking saddles are prone to lateral swaying under strong winds or sudden load changes, which can lead to support shaking and the risk of steel cables derailing. Furthermore, as the diameter of the steel cables increases, friction causes temperature rise and severe wear.
A novel bidirectional freight cableway swing saddle is designed, which adopts a cable pulley main shaft and bearing assembly, combined with a lubrication structure. By optimizing the radius of curvature and lubrication channels, the adaptability and stability of the equipment are enhanced, and wear is reduced.
It effectively reduces the wear rate of steel cables and cable trays, suppresses support vibration and cross-movement, extends equipment service life, increases the upper limit of load, and enhances terrain adaptability and load reliability.
Smart Images
Figure CN224241006U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of freight cableway equipment, specifically to a novel bidirectional freight cableway swing saddle. Background Technology
[0002] A saddle is a device installed on a track support to support the load-bearing cable. Traditional saddles are made of cast iron or cast steel and have smooth, curved cable grooves, essentially large-radius arcs, within which the load-bearing cable is freely placed. Saddles can be structurally divided into two types: fixed saddles and swing saddles. The former is rigidly fixed to the support, while the latter is freely fitted onto a horizontal axis on the support and can tilt at different angles depending on the position of the freight car in the adjacent span. Swing saddles soften the movement of freight cars (or berths) as they pass over the support and simplify the saddle's position on the support, maintaining the support head in a normal state even at large tilt angles.
[0003] However, with the increase in freight volume, the diameter of the steel cable is getting larger and larger. Under strong wind or sudden load changes, the original swing saddle is prone to lateral swaying, which causes the support to shake and shift, leading to the risk of the wire rope derailing. At the same time, the steel cable diameter is getting larger and larger, and the friction causes the temperature to rise, which causes the saddle and steel cable to generate large local stress, resulting in severe wear of the cable groove. Utility Model Content
[0004] The purpose of this invention is to provide a novel bidirectional freight cableway swing saddle that can adapt to multi-directional displacement changes under complex terrain conditions, effectively reduce the wear rate of steel cables and cable trays, and suppress support vibration and cross-movement. It features an integrated lubrication structure design that extends equipment lifespan through optimized lubrication channel layout. The mechanically optimized curvature radius parameter setting increases the allowable load limit, making it compatible with different diameter load-bearing cables ranging from Φ45 to Φ54 mm. This structure combines terrain adaptability with load reliability, significantly improving the overall performance of the freight cableway system.
[0005] The embodiments of this utility model are implemented as follows:
[0006] A novel bidirectional freight cableway swing saddle includes a saddle body and a cable pulley main shaft. A cable pulley mounting seat is provided at the center of the front of the saddle body. The cable pulley main shaft is a shaft whose diameter gradually decreases from the near end to the far end of the rope. A cable pulley is mounted on the end face near the rope end, and the cable pulley mounting seat of the saddle body is freely sleeved on the cable pulley. A first bearing assembly is sleeved on the near end of the cable pulley main shaft, and a second bearing assembly is sleeved on the far end of the cable pulley main shaft. Lubricating components are provided on the first bearing assembly and the second bearing assembly.
[0007] In a preferred embodiment of the present invention, the saddle body has a central circle M0, a first circle M1 and a second circle M2 located on both sides of the center of the central circle and equidistant from each other with the same radius. The radius of the central circle M0 is greater than the radius of the first circle M1 / second circle M2. There is a hollow space between the central circle M0 and the first circle M1 / second circle M2. The tops of the central circle M0 and the first circle M1 / second circle M2 are connected by an arc transition, and a saddle groove is provided on the arc surface. The bottoms of the central circle M0 and the first circle M1 / second circle M2 are connected by a tangent transition.
[0008] In a preferred embodiment of this utility model, the relationship between the radius of curvature R of the saddle body and the diameter d of the wire rope is: R > 150d, and the thickness of the polymer wear-resistant coating is 2-3 mm and contains a graphene composite layer.
[0009] In a preferred embodiment of this utility model, the included angle between the axes of the first circle M1 and the second circle M2 at the aforementioned center circle M0 position is 16-20°.
[0010] In a preferred embodiment of the present invention, the above-mentioned cable roller mounting base and cable roller are connected by a cotter pin assembly, so that the saddle body can swing based on the cable roller main shaft.
[0011] In a preferred embodiment of this utility model, the first bearing assembly includes, from bottom to top, a first bearing seat, a first lower bearing shell, a cable pulley spindle, a first upper bearing shell, a first bearing cover, a first oil cup, and a bolt assembly. The bottom of the first bearing seat is connected to a bracket. The bottom of the first lower bearing shell has a first groove that matches the shape of the top of the first bearing seat. The top curved surface of the first lower bearing shell fits the cable pulley spindle. The bottom inner side of the first upper bearing shell has a second groove that forms a lubrication cavity on the outer wall of the cable pulley spindle. The top of the first upper bearing shell has a third groove for mounting the bearing cover. The middle of the bearing cover has a first bearing shell fixing sleeve. The top of the first bearing shell fixing sleeve has a first oil cup. The first bearing shell fixing sleeve is inserted into the first upper bearing shell from the bearing cover, and lubricating oil is immersed in the lubrication cavity. The first bearing seat and the first bearing cover are fastened by the bolt assembly.
[0012] In a preferred embodiment of the present invention, the first bearing cover has an arc-shaped cross-section, with a first through hole for assembling the first oil cup and the bearing bush fixing sleeve in the middle of the arc; and a plane extends horizontally from both ends of the arc-shaped slope, on which four sets of bolts are assembled.
[0013] In a preferred embodiment of the present invention, the first bearing seat is a seat body with an arc shape in the middle of the top surface, and through holes corresponding to the positions of the bolt group are provided around the arc shape; mounting surfaces extend on both sides of the bottom of the seat body, and the first bearing seat is fixed to the bracket by bolts.
[0014] In a preferred embodiment of the present invention, the second bearing assembly includes, from bottom to top, a second bearing seat, a second lower bearing shell, a cable pulley spindle, a second upper bearing shell, a second bearing cover, and a second oil cup.
[0015] In a preferred embodiment of this utility model, a retaining ring is fitted onto the far end face of the main shaft of the cable pulley.
[0016] The beneficial effects of this utility model embodiment are:
[0017] 1. This solution reduces bracket vibration and misalignment by installing lubricating components on the two bearing assemblies of the main shaft of the cable pulley. The good lubrication effect further reduces wear on the cable groove and increases the service life of the equipment.
[0018] 2. The top of the saddle body adopts an arc design, and the bottom uses a tangential transition. The new shape of the saddle body can cope with strong winds or frequent load changes, enhancing the adaptability of the system.
[0019] 3. The saddle body and the main shaft of the cable pulley are connected by the cable pulley assembly seat. The cable pulley assembly seat of the saddle body is freely fitted on the cable pulley, which can buffer the impact force when the truck passes by, isolate the bending moment of the support cable and the truck on the support, reduce the horizontal thrust on the support and improve the stability of the support. Attached Figure Description
[0020] 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.
[0021] Figure 1 This is a schematic diagram of the assembled rocking saddle according to an embodiment of the present invention;
[0022] Figure 2 This is a schematic diagram of the saddle body structure according to an embodiment of the present utility model;
[0023] Figure 3 A schematic diagram of the structure of the cable pulley spindle with the first and second bearing assembly groups assembled in this embodiment of the utility model;
[0024] Figure 4 This is a schematic diagram of the first bearing assembly structure according to an embodiment of the present utility model;
[0025] Figure 5 This is a schematic cross-sectional view of the first bearing housing according to an embodiment of the present invention;
[0026] Figure 6 This is a schematic cross-sectional view of the first bearing cover according to an embodiment of the present utility model;
[0027] Figure 7 This is a schematic diagram of the second bearing assembly structure according to an embodiment of the present invention.
[0028] icon:
[0029] Bracket 001;
[0030] Saddle body 110; center circle M0; first circle M1; second circle M2; saddle groove 111; cutout 112; cable pulley assembly 113; cotter pin assembly 114;
[0031] Cable pulley main shaft 120; Cable pulley 121;
[0032] First bearing assembly 130; First bearing seat 131; First through hole 1311; Second through hole 1312; First lower bearing shell 132; First upper bearing shell 133; First bearing cover 134; First bearing shell fixing sleeve 1341; Third through hole 1342; Fourth through hole 1343; First oil cup 135; Bolt assembly 136; First groove 137; Second groove 138; Third groove 139;
[0033] Second bearing assembly 140; second bearing seat 141; second lower bearing shell 142; second upper bearing shell 143; second bearing cover 144; second oil cup 145;
[0034] 150mm retaining ring. 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 refer to Figure 1-7 This embodiment provides a novel bidirectional freight cableway swing saddle, including a saddle body 110 and a cable-supporting wheel spindle 120 mounted on the front center of the saddle body 110.
[0043] For the overall shape of the saddle body 110, please refer to [link / reference]. Figure 2 The saddle body 110 has a central circle M0, a first circle M1 and a second circle M2 located on both sides of the central circle and equidistant from each other with the same radius. The radius of the central circle M0 is larger than the radius of the first circle M1 / second circle M2. The tops of the central circle M0 and the first circle M1 / second circle M2 are connected by an arc transition. A saddle groove 111 is provided on the arc surface. To ensure that the load-bearing cable placed in the saddle groove 111 can fit tightly with the groove, the diameter of the saddle groove 111 should be 2mm larger than the diameter of the rope. This also facilitates the lubrication of the load-bearing cable. The side edge height of the saddle groove 111 is generally not less than 80% of the rope diameter. The bottoms of the central circle M0 and the first circle M1 / second circle M2 are connected by a tangent transition.
[0044] In this embodiment, the saddle body 110 has a flat ring structure composed of a first circle M1 and a second circle M2 symmetrically distributed with the central circle M0 as the reference. The top is formed by a double arc transition to form a saddle groove 111, in which the projected length of the arc segment is 2370mm. The bottom is connected by a tangent to form a reinforced web, which improves the structural stability.
[0045] Specifically, the relationship between the radius of curvature R of the saddle body 110 and the diameter d of the wire rope is: R > 150d, resulting in a larger radius of curvature, higher allowable load, and adaptability to various load-bearing cable diameters. Simultaneously, the larger radius of curvature reduces impact force during passage, increasing the stability of the support. A 2-3mm thick polymer wear-resistant coating containing a graphene composite layer is applied inside the cable groove to reduce friction on the steel cable. The included angle between the axes of the first circle M1 and the second circle M2 at the center circle M0 is 16-20°; in this embodiment, the included angle is 18°.
[0046] A hollow section 112 is provided between the central circle M0 and the first circle M1 / second circle M2, forming a wind-resistant hollow section 112 area between the central circle and the two side circles, enabling it to cope with strong winds or frequent load changes and enhancing the system's adaptability. The saddle body 110 is made of high-strength alloy steel with a galvanized or anti-corrosion coating, designed for mountainous and heavy-duty freight cableways that need to withstand frequent impacts and strong winds to ensure equipment stability.
[0047] A cable pulley mounting seat 113 is provided at the center of the front of the saddle body 110.
[0048] Please see Figure 3 The main shaft 120 of the cable pulley is a shaft whose diameter gradually decreases from the near end to the far end of the rope. The cable pulley 121 is mounted on the end face near the rope end. The cable pulley mounting seat 113 of the saddle body 110 is freely sleeved on the cable pulley 121. The cable pulley mounting seat 113 and the cable pulley 121 are connected by a cotter pin assembly 114, allowing the saddle body 110 to swing based on the cable pulley main shaft 120. The cotter pin assembly 114 consists of a bolt, a nut, and a cotter pin, with the cotter pin passing through the cable pulley mounting seat 113.
[0049] A first bearing assembly 130 is fitted onto the rope-near end of the main shaft 120 of the cable pulley, and a second bearing assembly 140 is fitted onto the rope-far end of the main shaft 120 of the cable pulley. Lubricating components are provided on top of the first bearing assembly 130 and the second bearing assembly 140 to reduce wear on the cable groove / steel cable. In this embodiment, the lubricating component is a lubrication path composed of an oil cup, bearing cap, and bearing bush.
[0050] For details, please see Figure 4The first bearing assembly 130 includes, from bottom to top, a first bearing seat 131, a first lower bearing shell 132, a cable pulley main shaft 120, a first upper bearing shell 133, a first bearing cover 134, a first oil cup 135, and a bolt assembly 136.
[0051] Please see Figure 5 The bottom of the first bearing seat 131 is connected to the bracket 001. The first bearing seat 131 is a seat body with an arc shape in the middle of the top surface. A first through hole 1311 corresponding to the position of the bolt group 136 is provided around the arc shape. The mounting surfaces extend on both sides of the bottom of the seat body, and a second through hole 1312 is provided on the extended mounting surfaces. The first bearing seat 131 is then fixed to the bracket 001 by bolts.
[0052] The first lower bearing shell 132 has an overall tile-shaped semi-cylindrical surface. A first groove 137, matching the top shape of the first bearing seat 131, is provided at the bottom of the first lower bearing shell 132 to facilitate assembly onto the first bearing seat 131. A gap exists between the first lower bearing shell 132 and the first bearing seat 131. The top curved surface of the first lower bearing shell 132 fits against the main shaft 120 of the cable pulley.
[0053] The bottom inner side of the first upper bearing shell 133 is provided with a second groove 138, which forms a lubrication cavity on the outer wall of the main shaft 120 of the cable pulley; the top of the first upper bearing shell 133 is provided with a third groove 139 for assembling the bearing cover, and there is a gap between the bottom of the bearing cover and the first upper bearing shell 133.
[0054] A first bearing bush fixing sleeve 1341 is provided in the middle of the first bearing cover 134, and a first oil cup 135 is provided on the top of the first bearing bush fixing sleeve 1341. The first bearing bush fixing sleeve 1341 is inserted into the first upper bearing bush 133 from the bearing cover, and lubricating oil is soaked into the lubrication cavity. The first bearing seat 131 and the first bearing cover 134 are fastened by four sets of bolts 136.
[0055] Please see Figure 6 The first bearing cover 134 has an arc-shaped cross-section, with a third through hole 1342 in the middle of the arc for assembling the first oil cup 135 and the bearing bush fixing sleeve; a fourth through hole 1343 extends horizontally from both ends of the arc slope and is provided on the plane, and four sets of bolt groups 136 are assembled on the plane.
[0056] Please see Figure 7The structure of the second bearing assembly 140 is similar to that of the first bearing assembly 130, but its dimensions are smaller. It includes, from bottom to top, a second bearing seat 141, a second lower bearing bush 142, a cable pulley main shaft 120, a second upper bearing bush 143, a second bearing cover 144, and a second oil cup 145. The inner wall of the second lower bearing bush 142 has a groove, forming a lubrication cavity with the cable pulley main shaft 120. A tubular second bearing bush fixing sleeve is fitted in the middle of the second upper bearing bush 143 and the second bearing cover 144, guiding the lubricating grease from the oil cup in the middle of the second bearing cover 144 into the cavity between the second upper bearing bush 143 and the cable pulley main shaft 120. The second bearing seat 141 and the second bearing cover 144 are connected by two sets of bolts.
[0057] A retaining ring 150 is fitted on the far end face of the cable pulley main shaft 120. The retaining ring is connected to the cable pulley main shaft 120 through a cotter pin assembly. The second bearing assembly 140 is constrained by the retaining ring 150 and the externally protruding retaining ring provided on the cable pulley main shaft 120.
[0058] 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.
[0059] 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 bidirectional freight cableway swing saddle, characterized in that, include: The saddle body has a cable pulley mounting seat at the center of the front; The main shaft of the cable pulley is a shaft whose diameter gradually decreases from the near end to the far end of the rope. A cable pulley is assembled on the end face near the rope end, and the cable pulley assembly seat of the saddle body is freely sleeved on the cable pulley. A first bearing assembly is sleeved on the near end of the cable pulley main shaft, and a second bearing assembly is sleeved on the far end of the cable pulley main shaft. Lubricating elements are provided on the first bearing assembly and the second bearing assembly.
2. The novel bidirectional freight cableway swing saddle according to claim 1, characterized in that, The saddle body has a central circle M0, a first circle M1 and a second circle M2 located on both sides of the central circle and equidistant from each other with the same radius. The radius of the central circle M0 is larger than the radius of the first circle M1 / second circle M2. There is a hollow space between the central circle M0 and the first circle M1 / second circle M2. The tops of the central circle M0 and the first circle M1 / second circle M2 are connected by an arc transition, and a saddle groove is provided on the arc surface. The bottoms of the central circle M0 and the first circle M1 / second circle M2 are connected by a tangent transition.
3. The novel bidirectional freight cableway swing saddle according to claim 2, characterized in that, The relationship between the radius of curvature R of the saddle body and the diameter d of the wire rope is: R > 150d. The thickness of the polymer wear-resistant coating is 2-3 mm and contains a graphene composite layer.
4. The novel bidirectional freight cableway swing saddle according to any one of claims 1-3, characterized in that, The included angle between the axes of the first circle M1 and the second circle M2 at the position of the central circle M0 is 16-20°.
5. The novel bidirectional freight cableway swing saddle according to any one of claims 1-3, characterized in that, The cable roller mounting base and the cable roller are connected by a cotter pin assembly, allowing the saddle body to swing based on the cable roller spindle.
6. The novel bidirectional freight cableway swing saddle according to claim 1, characterized in that, The first bearing assembly includes, from bottom to top, a first bearing seat, a first lower bearing shell, a cable pulley spindle, a first upper bearing shell, a first bearing cover, a first oil cup, and a bolt assembly. The bottom of the first bearing seat is connected to a bracket. The bottom of the first lower bearing shell has a first groove that matches the shape of the top of the first bearing seat. The top curved surface of the first lower bearing shell fits against the cable pulley spindle. The bottom inner side of the first upper bearing shell has a second groove that forms a lubrication cavity on the outer wall of the cable pulley spindle. The top of the first upper bearing shell has a third groove for mounting the bearing cover. A first bearing shell retaining sleeve is provided in the middle of the bearing cover. The first oil cup is provided on the top of the first bearing shell retaining sleeve. The first bearing shell retaining sleeve is inserted into the first upper bearing shell from the bearing cover, and lubricating oil wets the lubrication cavity. The first bearing seat and the first bearing cover are fastened by the bolt assembly.
7. The novel bidirectional freight cableway swing saddle according to claim 6, characterized in that, The first bearing cover has an arc-shaped cross-section, with a first through hole for assembling the first oil cup and the bearing bush fixing sleeve in the middle of the arc; and four sets of bolts are assembled on the planes extending horizontally from both ends of the arc slope.
8. The novel bidirectional freight cableway swing saddle according to claim 6, characterized in that, The first bearing housing is a seat body with an arc shape in the middle of the top surface, and through holes corresponding to the positions of the bolt group are provided around the arc shape; the mounting surfaces extend on both sides of the bottom of the seat body, and the first bearing housing is fixed to the bracket by bolts.
9. The novel bidirectional freight cableway swing saddle according to claim 1, characterized in that, The second bearing assembly includes, from bottom to top, a second bearing housing, a second lower bearing shell, a cable pulley spindle, a second upper bearing shell, a second bearing cover, and a second oil cup.
10. The novel bidirectional freight cableway swing saddle according to claim 9, characterized in that, A retaining ring is fitted onto the far end face of the main shaft of the cable reel.