Adjustable fatigue-resistant elastic sling clamp device

Abstract

The invention relates to the technical field of cable clamp devices, in particular to an adjustable fatigue-resistant elastic sling cable clamp device which comprises an upper clamping plate, a middle clamping plate and a lower clamping plate, first arc-shaped grooves are oppositely formed between the upper clamping plate and the middle clamping plate, a first clamping area is formed between the upper clamping plate and the middle clamping plate, and the first clamping area is used for clamping a carrier cable; second arc-shaped grooves are oppositely formed between the middle clamping plate and the lower clamping plate, a second clamping area is formed between the middle clamping plate and the lower clamping plate, the second clamping area is used for clamping the elastic sling, and in the using process, the flaring guide parts at the two ends of the second arc-shaped grooves are set to be at different opening angles, so that on one hand, the using requirements of the elastic sling under different working conditions are met; one wire clamp meets the use requirements of different working conditions, the production cost is reduced, on the other hand, the local stress between the middle clamping plate and the lower clamping plate in the bending process of the elastic sling is reduced, the service life of the wire clamp device and the elastic sling is prolonged, and the fatigue resistance of the sling wire clamp is improved; and the elastic sling can be stably and reliably clamped by the wire clamping device.

Description

Technical Field

[0001] The present invention relates to the technical field of clamp devices, and in particular to an adjustable fatigue-resistant elastic sling clamp device. Background Art

[0002] Existing elastic sling clamps mainly include an upper clamping plate, a middle clamping plate, and a lower clamping plate arranged in sequence. A catenary is arranged between the upper clamping plate and the middle clamping plate, and an elastic sling is arranged between the middle clamping plate and the lower clamping plate. The upper clamping plate, the middle clamping plate, and the lower clamping plate are fixedly connected by bolts. Since the elastic sling itself has a large rigidity and is not easily deformed, but the part of the elastic sling in the clamp will be bent. When the elastic sling clamp is working, due to the influence of alternating stress and continuous vibration during the high-speed operation of the train, there will be a large local stress at the outlet of the elastic sling in the clamp, and the local stress will cause the fatigue fracture of the elastic sling or the failure of the elastic clamp device in the long term, seriously affecting the safe driving of the train. At the same time, in order to meet the use requirements of different working conditions, different molds are usually required to produce multiple clamps that meet the working condition requirements, which greatly increases the production cost of the clamps. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to solve the problem that there will be a large local stress at the outlet of the existing elastic sling in the clamp, and the local stress will cause the fatigue fracture of the elastic sling or the failure of the elastic clamp device in the long term, seriously affecting the safe driving of the train and the high production cost caused by multiple clamps. Now, an adjustable fatigue-resistant elastic sling clamp device is provided.

[0004] The technical solution adopted by the present invention to solve its technical problems is: an adjustable fatigue-resistant elastic sling clamp device, including an upper clamping plate, a middle clamping plate, and a lower clamping plate. A first arc-shaped groove is oppositely arranged between the upper clamping plate and the middle clamping plate to form a first clamping area for clamping the catenary. A second arc-shaped groove is oppositely arranged between the middle clamping plate and the lower clamping plate to form a second clamping area for clamping the elastic sling. Both ends of the second arc-shaped groove on the lower clamping plate are provided with outwardly gradually opening flaring guiding parts, and the opening angles of the flaring guiding parts at both ends of the second arc-shaped groove are different. Compared with the prior art, by setting different opening angles for the flaring guiding parts at both ends of the second arc-shaped groove, on the one hand, it meets the use requirements of the elastic sling under different working conditions, and one clamp can meet the use requirements of the working conditions, reducing the production cost. On the other hand, it reduces the local stress between the middle clamping plate and the lower clamping plate during the bending process of the elastic sling, improves the service life of the clamp device and the elastic sling, and improves the fatigue resistance of the sling clamp, ensuring that the clamp device clamps the elastic sling stably and reliably.

[0005] To meet the usage requirements of the elastic sling under different working conditions, in some preferred embodiments, at least two second clamping areas are provided between the middle splint and the lower splint. The second clamping areas are located on the same plane and are arranged to intersect with each other in the circumferential direction, and the opening angles of the flaring guide parts between the second clamps are different. By arranging a number of second clamping areas to intersect in the circumferential direction, the elastic sling can be used under more working conditions, the applicability of the clamp is increased, and the production cost is reduced.

[0006] To meet the usage of load-bearing cables of different sizes, in some preferred embodiments, at least two first clamping areas are provided between the upper splint and the middle splint. The first clamping areas are located on the same plane and are arranged to intersect with each other in the circumferential direction. The first clamping areas and the second clamping areas are arranged corresponding to each other, and the first clamping areas are used to clamp load-bearing cables of different sizes. By arranging the first clamping areas to intersect in the circumferential direction, the first clamping areas are applicable to clamping load-bearing cables of different sizes, increasing the contact area between the load-bearing cable and the clamp, increasing the friction force, reducing the sliding risk, and improving the applicability of the clamp.

[0007] Due to relative rotation between the existing clamp device and the load-bearing cable, to prevent rotation and sliding between the clamp device and the load-bearing cable, in some preferred embodiments, a first anti-rotation mechanism for preventing relative rotation and sliding between the load-bearing cable and the clamp device is provided in the first clamping area. The first anti-rotation mechanism includes first clamping teeth provided in the first clamping area. By providing the first anti-rotation mechanism in the first clamping area, the first anti-rotation mechanism is the first clamping teeth, and the first clamping teeth increase the friction force with the load-bearing cable, reducing the rotation risk.

[0008] To better reduce the rotation risk of the load-bearing cable, in some preferred embodiments, the first clamping teeth are in a herringbone structure and are used to prevent rotation and sliding between the load-bearing cable and the clamp device, and at least two sections of first clamping teeth facing opposite directions are provided in the first clamping area. At least two sections of first clamping teeth facing opposite directions are provided in the first clamping area, so as to ensure that the load-bearing cable does not rotate and slide relatively when the splint device is in the working state.

[0009] Due to relative rotation between the existing clamp device and the elastic sling, to prevent rotation between the clamp and the elastic sling, in some preferred embodiments, a second anti-rotation mechanism for preventing relative rotation and sliding between the elastic sling and the clamp device is provided in the second clamping area. The second anti-rotation mechanism includes second clamping teeth provided in the second clamping area. By providing the second anti-rotation mechanism in the second clamping area, the second anti-rotation mechanism is the second clamping teeth, and the second clamping teeth increase the friction force with the elastic sling, reducing the rotation risk, enhancing the stability and safety of the clamp device, and ensuring the stable operation of the equipment.

[0010] In order to better reduce the risk of elastic sling sliding, in some preferred embodiments, the second clamping teeth are in a herringbone structure and are used to prevent rotation between the elastic sling and the clamp device. At least two sections of second clamping teeth with opposite orientations are arranged in the second clamping area. By arranging at least two sections of second clamping teeth with opposite orientations in the second clamping area, it is ensured that the elastic sling will not rotate or slide relatively when the splint is in the working state, enhancing the stability and safety of the clamp device and ensuring the stable operation of the equipment.

[0011] In order to fix the upper splint and the lower splint to each other, in some preferred embodiments, the upper splint and the lower splint are fixedly connected to each other by bolts.

[0012] In order to prevent the middle splint from displacing, in some preferred embodiments, a number of bolts are provided, and a limiting mechanism is arranged between the number of bolts and the middle splint. The limiting mechanism is used to limit the displacement of the middle splint between the upper splint and the middle splint.

[0013] In order to implement the limiting mechanism, in some preferred embodiments, the limiting mechanism includes positioning grooves provided on the upper and middle splints and matching with the bolts. The bolts are arranged in the positioning grooves. There are four bolts, and the four bolts are enclosed in a circumferential direction.

[0014] The beneficial effects of the present invention are as follows: When the adjustable fatigue-resistant elastic sling clamp device of the present invention is in use, by setting different opening angles for the flared guiding parts at both ends of the second arc-shaped groove, on the one hand, it meets the usage requirements of the elastic sling under different working conditions, one clamp can meet the usage requirements of the working conditions, reducing production costs. On the other hand, it reduces the local stress between the middle splint and the lower splint during the bending process of the elastic sling, improving the service life of the clamp device and the elastic sling, as well as improving the fatigue-resistant performance of the sling clamp, ensuring that the clamp device stably and reliably holds the elastic sling, avoiding the problem that there will be relatively large local stress at the wire outlet of the existing elastic sling in the clamp, and the long-term local stress will cause the elastic sling to fatigue and break or the elastic clamp device to fail, seriously affecting the safe driving of the train. Description of the Drawings

[0015] The present invention will be further described below in conjunction with the drawings and embodiments.

[0016] Figure 1 is the three-dimensional structure schematic diagram of the present invention;

[0017] Figure 2 is the front view of the present invention;

[0018] Figure 3 is the left view of the present invention;

[0019] Figure 4 is the top view of the present invention;

[0020] Figure 5 is Figure 4 The A-A sectional view in it;

[0021] Figure 6 is Figure 5 The enlarged partial view of B in it;

[0022] Figure 7 is Figure 5 The enlarged partial view of C in it;

[0023] Figure 8 It is the three-dimensional structure schematic diagram of the lower splint in the present invention;

[0024] Figure 9 It is the top view of the lower splint in the present invention;

[0025] Figure 10 It is the three-dimensional structure schematic diagram of the upper splint in the present invention;

[0026] Figure 11 It is the three-dimensional structure schematic diagram of the middle splint in the present invention.

[0027] In the figure: 1. Upper splint, 2. Middle splint, 3. Lower splint, 4. First arc groove, 5. Contact wire, 6. Second arc groove, 7. Elastic suspension, 8. Flaring guide part, 9. First clamping tooth, 10. Second clamping tooth, 11. Upper through hole, 12. Lower through hole, 13. Bolt, 14. Positioning groove;

[0028] X is the included angle between the lower bottom edge of the flaring guide part and the horizontal plane in the horizontal section;

[0029] Y is the included angle between the lower bottom edge of the flaring guide part and the elastic suspension in the horizontal section. Specific embodiments

[0030] The present invention will be further described in detail below in conjunction with embodiments:

[0031] The present invention is not limited to the following specific embodiments. Those of ordinary skill in the art can implement the present invention in other various specific embodiments according to the content disclosed in the present invention, or any simple changes or modifications made by adopting the design structure and idea of the present invention fall within the protection scope of the present invention. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0033] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0034] As Figure 1-11 shown, an adjustable fatigue-resistant elastic sling clamp device includes an upper clamping plate 1, a middle clamping plate 2, and a lower clamping plate 3 arranged in sequence from top to bottom. One end of the upper clamping plate 1 close to the middle clamping plate 2 is provided with a first arc-shaped groove 4, and one end of the middle clamping plate 2 close to the upper clamping plate 1 is also provided with a first arc-shaped groove 4. The first arc-shaped groove 4 of the upper clamping plate 1 and the first arc-shaped groove 4 of the middle clamping plate 2 are arranged opposite to each other and form a first clamping area for clamping the load-bearing cable 5. A first anti-rotation mechanism for preventing relative rotation between the load-bearing cable 5 and the clamp device is arranged in the first clamping area. One end of the middle clamping plate 2 close to the lower clamping plate 3 is provided with a second arc-shaped groove 6, and one end of the lower clamping plate 3 close to the middle clamping plate 2 is also provided with a second arc-shaped groove 6. The second arc-shaped groove 6 of the middle clamping plate 2 and the second arc-shaped groove 6 of the lower clamping plate 3 are arranged opposite to each other and form a second clamping area for clamping the elastic sling 7. Flaring guiding parts 8 that gradually open outwards are arranged at both ends of the second arc-shaped groove 6 on the lower clamping plate 3, and the opening angles of the flaring guiding parts 8 at both ends of the second arc-shaped groove 6 are different.

[0035] In this embodiment, there are two second clamping areas between the middle clamping plate 2 and the lower clamping plate 3, which are arranged crosswise and vertically along the circumferential direction. In addition to the two crosswise second clamping areas, three, four, five or more can also be arranged crosswise along the circumferential direction, and the second clamping areas are all located in the same plane. The two second clamping areas are suitable for the elastic sling to be used under different working conditions. For example, for these four flaring guide parts 8 with different angles, four sets of molds are usually required in existing equipment to produce four sets of clamping devices with different angles. In this solution, only one set of clamping device can have four flaring guide parts 8 with different angles, and the angle of the appropriate flaring guide part 8 can be selected according to the actual working conditions. Moreover, the flaring guide parts 8 with different angles are integrated on the lower clamping plate 3 of a clamping device, which can also achieve material savings. During installation, since there will be a certain angle gap between the elastic sling 7 and the flaring guide part 8, the gap causes the lower clamping plate 3 to disengage from the elastic sling 7, avoiding the stress concentration phenomenon caused by the lower clamping plate 3 pressing against the bent part of the elastic sling 7, improving the service life of the clamping device and the elastic sling 7, and also improving the fatigue resistance and strength of the clamping device, reducing the deformation of the clamping plate itself, and increasing the clamping force.

[0036] A second anti-rotation mechanism is arranged in the second clamping area. The second anti-rotation mechanism is used to prevent the elastic sling 7 from rotating with the clamping device during clamping. The second anti-rotation mechanism includes second clamping teeth 10 arranged in the second clamping area. The second clamping teeth 10 are in a herringbone structure, and at least two sections of second clamping teeth 10 with opposite orientations are arranged in the second clamping area.

[0037] In this embodiment, there are two first clamping areas between the upper clamping plate 1 and the middle clamping plate 2, which are arranged crosswise and vertically along the circumferential direction. In addition to the two crosswise first clamping areas, three, four, five or more can also be arranged crosswise along the circumferential direction. The two first clamping areas are respectively suitable for clamping load-bearing cables 5 of different sizes.

[0038] A first anti-rotation mechanism is arranged in the first clamping area. The first anti-rotation mechanism is used to prevent the load-bearing cable 5 from rotating with the clamping device during clamping. The first anti-rotation mechanism includes first clamping teeth 9 arranged in the first clamping area. The first clamping teeth 9 are in a herringbone structure, and at least two sections of first clamping teeth 9 with opposite orientations are arranged in the first clamping area.

[0039] An upper clamping plate 1 is provided with an upper through hole 11, and a lower clamping plate 3 is provided with a lower through hole 12. The upper through hole 11 and the lower through hole 12 are arranged oppositely. One end of a bolt passes through the upper through hole 11 and the lower through hole 12 and is in threaded connection with a nut, so as to realize the fixed connection between the upper clamping plate 1 and the lower clamping plate 3. There are four bolts 13, and a limiting mechanism is arranged between the four bolts 13 and the middle clamping plate 2. The limiting mechanism is used to limit the displacement of the middle clamping plate between the upper clamping plate 1 and the middle clamping plate 2. The limiting mechanism includes a positioning groove 14 arranged on the upper middle clamping plate 2 and matching with the bolt 13. The bolt 13 is arranged in the positioning groove 14, and the four bolts 13 are enclosed in a circumferential direction.

[0040] When installing the above adjustable fatigue-resistant elastic suspension clamp device, first place the middle clamping plate 2 between the carrier cable 5 and the elastic suspension 7, place the upper clamping plate 1 above the carrier cable 5, and place the lower clamping plate 3 below the elastic suspension 7. And select the corresponding first arc groove 4 to correspond to the carrier cable 5, and the second arc groove 6 to correspond to the elastic suspension 7. One end of a bolt passes through the upper through hole 11 and the lower through hole 12 and is in threaded connection with a nut to fix between the upper clamping plate 1 and the lower clamping plate 3, and clamp the carrier cable 5 in the first clamping area between the upper clamping plate 1 and the middle clamping plate 2, and clamp the middle elastic suspension 7 in the second clamping area between the middle clamping plate and the lower clamping plate 3 to complete the installation;

[0041] After the installation is completed, since the elastic suspension 7 itself will have a certain curvature, and the opening angles of the flared guiding parts 8 at both ends of the second arc groove 6 on the lower clamping plate 3 are different, that is, the angle of one end of the flared guiding part 8 is greater than the angle of the other end of the flared guiding part 8. One side of the elastic suspension 7 is horizontally arranged on the lower clamping plate, so that an angle X is formed between one side of the elastic suspension 7 and one end of the flared guiding part 8, and X is 10°. The other side of the elastic suspension 7 is bent relative to the lower clamping plate 3, so that an angle Y is formed between the other side of the elastic suspension 7 and one end of the flared guiding part 8, and Y is 5°. Among them, an angle X is formed between one side of the elastic suspension 7 and one end of the flared guiding part 8, and an angle Y is formed between the other side of the elastic suspension 7 and one end of the flared guiding part 8. The angles of X and Y can be selected as 5°, 10°, 15° or larger according to the use requirements.

[0042] Inspired by the ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An adjustable fatigue-resistant elastic sling clamp device, comprising an upper clamping plate (1), a middle clamping plate (2) and a lower clamping plate (3). First arc grooves (4) are respectively arranged on the opposite surfaces between the upper clamping plate (1) and the middle clamping plate (2). A first clamping area for clamping a catenary (5) is formed between two opposite first arc grooves (4). Second arc grooves (6) are respectively arranged on the opposite surfaces between the middle clamping plate (2) and the lower clamping plate (3). A second clamping area for clamping an elastic sling (7) is formed between two opposite second arc grooves (6). It is characterized in that: Both ends of the second arc-shaped groove (6) on the lower clamping plate (3) are provided with flaring guiding parts (8) that gradually open outwards, and the opening angles of the flaring guiding parts (8) at both ends of the second arc-shaped groove (6) are different.

2. An adjustable fatigue-resistant elastic sling clamp device according to claim 1, characterized in that: There are at least two second clamping areas between the middle clamping plate (2) and the lower clamping plate (3). The second clamping areas are located on the same plane and are arranged to intersect with each other in the circumferential direction, and the opening angles of the flaring guiding parts (8) between the second clamps are all different.

3. The adjustable fatigue-resistant elastic sling clamp device according to claim 2, characterized in that: There are at least two first clamping areas between the upper clamping plate (1) and the middle clamping plate (2). The first clamping areas are located on the same plane and are arranged to intersect with each other in the circumferential direction. The first clamping areas and the second clamping areas are arranged correspondingly, and the first clamping areas are used to clamp catenaries (5) of different sizes.

4. An adjustable fatigue-resistant elastic sling clamp device according to claim 1, characterized in that: A first anti-rotation mechanism for preventing relative rotation and sliding between the catenary (5) and the clamp device is arranged in the first clamping area. The first anti-rotation mechanism includes first clamping teeth (9) arranged in the first clamping area.

5. The adjustable fatigue-resistant elastic sling clamp device according to claim 4, characterized in that: The first clamping teeth (9) are in a herringbone structure and are used to prevent rotation between the catenary (5) and the clamp device. At least two sections of first clamping teeth (9) with opposite orientations are arranged in the first clamping area.

6. An adjustable fatigue-resistant elastic sling clamp device according to claim 1, characterized in that: A second anti-rotation mechanism for preventing relative rotation and sliding between the elastic sling (7) and the clamp device is arranged in the second clamping area. The second anti-rotation mechanism includes second clamping teeth (10) arranged in the second clamping area.

7. The adjustable fatigue-resistant elastic sling clamp device according to claim 6, characterized in that: The second clamping teeth (10) are in a herringbone structure and are used to prevent rotation between the elastic sling (7) and the clamp device. At least two sections of second clamping teeth (10) with opposite orientations are arranged in the second clamping area.

8. An adjustable fatigue-resistant elastic sling clamp device according to claim 1, characterized in that: The upper clamping plate (1) and the lower clamping plate (3) are fixedly connected to each other by bolts (13).

9. The adjustable fatigue-resistant elastic sling clamp device according to claim 8, characterized in that: A number of bolts (13) are provided. A limiting mechanism is arranged between the number of bolts (13) and the middle clamping plate (2). The limiting mechanism is used to limit the displacement of the middle clamping plate between the upper clamping plate (1) and the middle clamping plate (2).

10. An adjustable fatigue-resistant elastic sling clamp device according to claim 9, characterized in that: The limiting mechanism includes positioning grooves (14) arranged on the middle upper clamping plate (2) and matching the bolts (13). The bolts (13) are arranged in the positioning grooves (14). There are four bolts (13), and the four bolts (13) enclose in the circumferential direction.

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