Stress dispersion type suspension clamp

Abstract

The invention discloses a stress dispersion type suspension clamp which comprises a triangular block, two vertical adjusting mechanisms which are symmetrically arranged are installed on the two sides of the triangular block, and the bottoms of the transmission ends of the two vertical adjusting mechanisms are fixedly connected with two horizontal adjusting mechanisms which are symmetrically arranged. Two pressing assemblies are fixedly installed at the bottoms of the transmission ends of the two horizontal adjusting mechanisms, two fixing plates which are symmetrically arranged are fixedly connected to the two side walls of the triangular block, and the side walls, located below the two pressing assemblies, of the two fixing plates are jointly and fixedly connected with an isosceles trapezoid block. And a dynamic pressure compensation mechanism is arranged in the isosceles trapezoid block and is used for compensating the pressure on the rubber arc-shaped bulge. According to the invention, the problem of local stress concentration of a traditional suspension clamp is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of suspension clamps, and particularly to a stress-dispersing suspension clamp. Background Art

[0002] In a power transmission system, a suspension clamp is an important component used to suspend a wire on an insulator string, fix the wire on the insulator, and bear the vertical load and horizontal wind force of the wire. During the use of traditional suspension clamps, local stress concentration of the wire often occurs due to unreasonable contact between the wire and the clamp. Especially in the face of complex natural environments, such as strong winds and thermal expansion and contraction of the wire caused by temperature changes, this local stress concentration phenomenon is more obvious, seriously affecting the service life of the wire and even potentially causing safety accidents. Therefore, it is of great practical significance to develop a suspension clamp that can effectively disperse stress and has an adaptive adjustment ability. Summary of the Invention

[0003] To solve the problem of local stress concentration in traditional suspension clamps, the purpose of the present invention is to provide a stress-dispersing suspension clamp.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions: A stress-dispersing suspension clamp includes a triangular block, two vertically adjustable mechanisms symmetrically arranged on both sides of the triangular block, two horizontally adjustable mechanisms symmetrically arranged and fixedly connected to the bottoms of the driving ends of the two vertically adjustable mechanisms, two pressing components fixedly installed at the bottoms of the driving ends of the two horizontally adjustable mechanisms, two fixing plates symmetrically arranged and fixedly connected to the two side walls of the triangular block, and an isosceles trapezoidal block fixedly connected to the side walls of the two fixing plates below the two pressing components;

[0005] The pressing component includes a housing with a wedge-shaped opening at the bottom, a pressing wheel rotatably installed on the inner wall of the wedge-shaped opening at the bottom of the housing through a pin shaft, and two first arc grooves opened on the side wall of the smaller end face of the housing;

[0006] A number of third arc grooves and a number of rubber arc protrusions are alternately arranged on both isosceles sides of the isosceles trapezoidal block, and a dynamic pressure compensation mechanism is arranged inside the isosceles trapezoidal block for compensating the pressure on the rubber arc protrusions.

[0007] Preferably, the vertically adjustable mechanism includes a rectangular block, two L-shaped plates symmetrically arranged and fixedly connected to the side wall of the rectangular block, a rectangular groove opened on the side wall of the rectangular block, an adjusting bolt vertically rotatably penetrating through the inner wall of the rectangular groove, the head of one end of the adjusting bolt being located outside the rectangular block, an adjusting block threadedly penetrating through the outer wall of the adjusting bolt, a T-shaped block fixedly connected to the side wall of the adjusting block, the outer wall of the T-shaped block being slidably sleeved inside the inner walls between the two L-shaped plates, and the rectangular block being fixedly connected to the triangular block.

[0008] Preferably, the horizontal adjustment mechanism has the same structure as the vertical adjustment mechanism. The horizontal adjustment mechanism and the vertical adjustment mechanism are connected by a lifting block. The side wall of the lifting block is fixedly connected to the side wall of the T-shaped block in the vertical adjustment mechanism. The bottom of the lifting block is fixedly connected to the top of the rectangular block in the horizontal adjustment mechanism. The bottom of the T-shaped block in the horizontal adjustment mechanism is fixedly connected to the top of the housing.

[0009] Preferably, the outer wall of the pressing wheel is provided with teeth. The inner wall of the housing is fixedly connected with a mounting block. An external hexagonal guide rod is vertically slidably inserted through the mounting block. The bottom of the external hexagonal guide rod is fixedly connected with a positioning block. The bottom of the positioning block is provided with a second arc-shaped groove that fits the outer wall of the pressing wheel. The inner wall of the second arc-shaped groove is provided with teeth that mesh with the teeth on the outer wall of the pressing wheel. The top of the mounting block is fixedly connected with a movable block. A wedge-shaped groove is provided on the top surface of the movable block. A lead screw is threadedly inserted through the side wall of the housing. One end of the lead screw located inside the housing is rotatably installed with a wedge-shaped block. The wedge-shaped surface at the bottom of the wedge-shaped block is slidably connected to the wedge-shaped surface in the wedge-shaped groove. A spring is sleeved on the outer wall of the external hexagonal guide rod. The two ends of the spring are respectively pressed against the bottom of the movable block and the top surface of the mounting block; the outer wall of the pressing wheel leaks out of the wedge-shaped opening at the bottom of the housing.

[0010] Preferably, the pressing wheel is used to press the cable in the third arc-shaped groove.

[0011] Preferably, the dynamic pressure compensation mechanism includes a mounting groove opened at the bottom of the isosceles trapezoidal block. A flow channel communicates with the top of the mounting groove. The flow channel is provided with a plurality of ports. A rubber arc-shaped protrusion is hermetically and fixedly connected to the inner wall of the port of the flow channel. A hydraulic cylinder is installed in the mounting groove. The telescopic end at the top of the hydraulic cylinder is fixedly connected with a piston. The outer wall of the piston is slidably sleeved on the inner wall of the mounting groove. The flow channel between the piston and the rubber arc-shaped protrusion and the mounting groove are filled with a fluid. A pressure sensor is installed on the top of the piston.

[0012] Preferably, the triangular block is provided with a mounting hole for passing through a pin shaft to install the suspension clamp.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0014] 1. In the present invention, a plurality of pressing wheels clamp the cable in a stepped state in a plurality of third arc-shaped grooves of the isosceles trapezoidal block, effectively dispersing the stress borne by the wire, avoiding local stress concentration, and greatly extending the service life of the wire.

[0015] 2. In the present invention, when the cable vibrates due to wind or expands and contracts due to heat and cold, the pressure on the rubber arc-shaped protrusion changes slightly. The internal pressure is adjusted through the dynamic pressure compensation mechanism to achieve a dynamic compensation mechanism and an adaptive stress adjustment, reducing the local stress peak value and improving the fatigue life of the contact area. Description of the Drawings

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0017] Figure 1 It is a schematic structural diagram of the overall cross-section of the present invention;

[0018] Figure 2 For the present invention Figure 1 It is a schematic structural diagram of part A in the present invention;

[0019] Figure 3 It is a schematic structural diagram of the vertical adjustment mechanism of the present invention;

[0020] Figure 4 It is a schematic cross-sectional structural diagram of the isosceles trapezoidal block of the present invention;

[0021] Figure 5 It is a schematic structural diagram of the housing of the present invention.

[0022] In the figure: 1, triangular block; 2, vertical adjustment mechanism; 3, horizontal adjustment mechanism; 4, pressing assembly; 5, fixing plate; 6, isosceles trapezoidal block; 201, rectangular block; 202, L-shaped plate; 203, rectangular groove; 204, adjusting bolt; 205, adjusting block; 206, T-shaped block; 401, housing; 402, pressing wheel; 403, mounting block; 404, external hexagonal guide rod; 405, positioning block; 406, second arc groove; 407, movable block; 408, wedge groove; 409, lead screw; 410, wedge block; 411, spring; 412, first arc groove; 601, third arc groove; 602, rubber arc protrusion; 603, dynamic pressure compensation mechanism; 6031, mounting groove; 6032, flow channel; 6033, piston; 6034, hydraulic cylinder; 7, lifting block. Specific Embodiments

[0023] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0024] Please refer to Figures 1 to 5It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they do not have any substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

[0025] The present invention provides a technical solution: a stress-dispersing suspension clamp, which includes a triangular block 1. On both sides of the triangular block 1, two symmetrically arranged vertical adjusting mechanisms 2 are installed. Through the vertical adjusting mechanisms 2, the height of the components installed below them can be adjusted. At the bottom of the driving ends of the two vertical adjusting mechanisms 2, two symmetrically arranged horizontal adjusting mechanisms 3 are fixedly connected. The horizontal adjusting mechanisms 3 can be used to adjust the horizontal position of the components below them. At the bottom of the driving ends of the two horizontal adjusting mechanisms 3, two pressing components 4 are fixedly installed. The pressing components 4 are used to press the wire. On both side walls of the triangular block 1, two symmetrically arranged fixing plates 5 are fixedly connected. On the side walls of the two fixing plates 5 below the two pressing components 4, an isosceles trapezoidal block 6 is fixedly connected together. The isosceles trapezoidal block 6 plays a key role in the clamping and stress dispersion of the wire.

[0026] The pressing component 4 includes a housing 401 with a wedge-shaped opening at the bottom. This wedge-shaped opening design is beneficial for better cooperation with the wire and the isosceles trapezoidal block 6. At the inner wall of the wedge-shaped opening at the bottom of the housing 401, a pressing wheel 402 is rotatably installed through a pin shaft. The pressing wheel 402 can rotate flexibly during the wire pressing process to reduce the wear on the wire. On the side wall of the smaller end face of the housing 401, two first arc-shaped grooves 412 are opened for further fixing the wire.

[0027] On the two equal sides of the isosceles trapezoidal block 6, a number of third arc-shaped grooves 601 and a number of rubber arc-shaped protrusions 602 are alternately arranged in sequence. The third arc-shaped grooves 601 are used to cooperate with the pressing wheel 402 to position and clamp the wire, while the rubber arc-shaped protrusions 602 can provide buffering and, through the dynamic pressure compensation mechanism 603 inside them, achieve dynamic adjustment of the pressure on the wire. Inside the isosceles trapezoidal block 6, a dynamic pressure compensation mechanism 603 is provided to compensate for the pressure on the rubber arc-shaped protrusions 602 to adapt to the stress changes of the wire under different working conditions.

[0028] The vertical adjustment mechanism 2 includes a rectangular block 201. Two symmetrically arranged L-shaped plates 202 are fixedly connected to the side wall of the rectangular block 201, and the L-shaped plates 202 provide guidance for the sliding of the T-shaped block 206. A rectangular groove 203 is formed in the side wall of the rectangular block 201, and an adjustment bolt 204 is vertically rotatably inserted through the inner wall of the rectangular groove 203. The head of one end of the adjustment bolt 204 is located outside the rectangular block 201, which is convenient for the operator to rotate and adjust. An adjustment block 205 is threadedly inserted through the outer wall of the adjustment bolt 204. When the adjustment bolt 204 is rotated, the adjustment block 205 will move along the axial direction of the adjustment bolt 204. A T-shaped block 206 is fixedly connected to the side wall of the adjustment block 205, and the outer wall of the T-shaped block 206 is slidably sleeved on the inner wall between the two L-shaped plates 202 to ensure the stable movement of the adjustment block 205. The rectangular block 201 is fixedly connected to the triangular block 1.

[0029] The horizontal adjustment mechanism 3 has the same structure as the vertical adjustment mechanism 2, which is convenient for production, manufacturing and maintenance. The horizontal adjustment mechanism 3 and the vertical adjustment mechanism 2 are connected by a lifting block 7. The side wall of the lifting block 7 is fixedly connected to the side wall of the T-shaped block 206 in the vertical adjustment mechanism 2. The bottom of the lifting block 7 is fixedly connected to the top of the rectangular block 201 in the horizontal adjustment mechanism 3. The bottom of the T-shaped block 206 in the horizontal adjustment mechanism 3 is fixedly connected to the top of the housing 401, thus realizing the linkage between the vertical adjustment mechanism 2 and the horizontal adjustment mechanism 3, as well as the precise adjustment of the pressing assembly 4 in the vertical and horizontal directions.

[0030] Tooth teeth are provided on the outer wall of the pressing wheel 402. An installation block 403 is fixedly connected to the inner wall of the housing 401. An external hexagonal guiding rod 404 is vertically slidably inserted through the installation block 403, and the external hexagonal guiding rod 404 can prevent the positioning block 405 from rotating during the movement. A positioning block 405 is fixedly connected to the bottom of the external hexagonal guiding rod 404. A second arc-shaped groove 406 that fits the outer wall of the pressing wheel 402 is formed in the bottom of the positioning block 405, and tooth teeth that mesh with the tooth teeth on the outer wall of the pressing wheel 402 are formed in the inner wall of the second arc-shaped groove 406 for positioning the pressing wheel 402. A movable block 407 is fixedly connected to the top of the installation block 403. A wedge-shaped groove 408 is formed in the top surface of the movable block 407. A lead screw 409 is threadedly inserted through the side wall of the housing 401. A wedge-shaped block 410 is rotatably installed at one end of the lead screw 409 located inside the housing 401. The wedge-shaped surface at the bottom of the wedge-shaped block 410 is slidably connected to the wedge-shaped surface in the wedge-shaped groove 408. By rotating the lead screw 409, the wedge-shaped block 410 can be pushed, thereby adjusting the positions of the movable block 407 and the positioning block 405. A spring 411 is sleeved on the outer wall of the external hexagonal guiding rod 404, and the two ends of the spring 411 are respectively abutted against the bottom of the movable block 407 and the top surface of the installation block 403 to provide a certain buffering and reset force. The outer wall of the pressing wheel 402 leaks out of the wedge-shaped opening at the bottom of the housing 401 so as to contact the wire and the isosceles trapezoidal block 6.

[0031] The dynamic pressure compensation mechanism 603 includes an installation groove 6031 formed at the bottom of the isosceles trapezoidal block 6. The top of the installation groove 6031 communicates with a flow channel 6032. The flow channel 6032 is provided with a plurality of ports, and the rubber arc-shaped protrusion 602 is hermetically and fixedly connected to the inner wall at the port of the flow channel 6032. A hydraulic cylinder 6034 is installed in the installation groove 6031. The telescopic end at the top of the hydraulic cylinder 6034 is fixedly connected with a piston 6033. The outer wall of the piston 6033 is slidably sleeved on the inner wall of the installation groove 6031. The flow channel 6032 and the installation groove 6031 between the piston 6033 and the rubber arc-shaped protrusion 602 are filled with fluid, and a pressure sensor is installed on the top of the piston 6033. By driving the piston 6033 to move through the hydraulic cylinder 6034, the pressure of the fluid in the flow channel 6032 and the installation groove 6031 can be adjusted, and further the pressing force of the rubber arc-shaped protrusion 602 on the wire can be controlled, and the pressure sensor monitors the pressure change in real time.

[0032] The triangular block installation structure: An installation hole is formed in the triangular block 1 for passing through a pin shaft to install the suspension clamp, which is convenient for fixing the suspension clamp on the cable tower pole.

[0033] The above embodiments only illustratively explain the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A stress-distributing suspension clamp, comprising a triangular block (1), characterized in that: Two symmetrically arranged vertical adjustment mechanisms (2) are installed on both sides of the triangular block (1); two symmetrically arranged horizontal adjustment mechanisms (3) are fixedly connected to the bottom of the transmission ends of the two vertical adjustment mechanisms (2); two clamping assemblies (4) are fixedly installed to the bottom of the transmission ends of the two horizontal adjustment mechanisms (3); two symmetrically arranged fixing plates (5) are fixedly connected to the two side walls of the triangular block (1); and the side walls of the two fixing plates (5) located below the two clamping assemblies (4) are fixedly connected to an isosceles trapezoidal block (6); The clamping assembly (4) comprises a shell (401) with a wedge-shaped opening at the bottom, a clamping wheel (402) is rotatably mounted on the inner wall of the wedge-shaped opening at the bottom of the shell (401) via a pin, and two first arc-shaped grooves (412) are formed on the side wall of the smaller end surface of the shell (401); A plurality of third arc-shaped grooves (601) and a plurality of rubber arc-shaped protrusions (602) are arranged alternately in sequence on the isosceles trapezoidal blocks (6) on both sides, and a dynamic pressure compensation mechanism (603) is arranged inside the isosceles trapezoidal blocks (6) for compensating the pressure on the rubber arc-shaped protrusions (602).

2. A stress-distributing suspension clamp according to claim 1, characterized in that: The vertical adjustment mechanism (2) comprises a rectangular block (201), the side wall of the rectangular block (201) is fixedly connected with two symmetrically arranged L-shaped plates (202), the side wall of the rectangular block (201) is provided with a rectangular groove (203), the inner wall of the rectangular groove (203) is vertically rotatably penetrated with an adjustment bolt (204), the head of one end of the adjustment bolt (204) is located outside the rectangular block (201), the outer wall of the adjustment bolt (204) is threadedly penetrated with an adjustment block (205), the side wall of the adjustment block (205) is fixedly connected with a T-shaped block (206), the outer wall of the T-shaped block (206) is slidably sleeved on the inner wall between the two L-shaped plates (202), and the rectangular block (201) is fixedly connected to the triangular block (1).

3. The stress-distributing suspension clamp according to claim 1, characterized in that: The horizontal adjustment mechanism (3) has the same structure as the vertical adjustment mechanism (2). The horizontal adjustment mechanism (3) is connected to the vertical adjustment mechanism (2) via a lifting block (7). The side wall of the lifting block (7) is fixedly connected to the side wall of the T-shaped block (206) in the vertical adjustment mechanism (2). The bottom of the lifting block (7) is fixedly connected to the top of the rectangular block (201) in the horizontal adjustment mechanism (3). The bottom of the T-shaped block (206) in the horizontal adjustment mechanism (3) is fixedly connected to the top of the shell (401).

4. The stress-distributing suspension clamp according to claim 1, characterized in that: The outer wall of the clamping wheel (402) is provided with teeth, the inner wall of the shell (401) is fixedly connected with a mounting block (403), an external hexagonal guide rod (404) is vertically slidably penetrated on the mounting block (403), the bottom of the external hexagonal guide rod (404) is fixedly connected with a positioning block (405), the bottom of the positioning block (405) is provided with a second arc groove (406) which matches the outer wall of the clamping wheel (402), the inner wall of the second arc groove (406) is provided with teeth which mesh with the teeth of the outer wall of the clamping wheel (402), the top of the mounting block (403) is fixedly connected with a movable block (407), the movable block A wedge-shaped groove (408) is provided on the top surface of (407), a screw rod (409) is threadedly connected to the side wall of the shell (401), and a wedge block (410) is rotatably installed on one end of the screw rod (409) located inside the shell (401), and the wedge surface at the bottom of the wedge block (410) is slidably connected to the wedge surface in the wedge groove (408), and the outer wall of the external hexagonal guide rod (404) is sleeved with a spring (411), and the two ends of the spring (411) are respectively pressed against the bottom of the movable block (407) and the top surface of the mounting block (403); the outer wall of the clamping wheel (402) protrudes from the wedge-shaped opening at the bottom of the shell (401).

5. The stress-distributing suspension clamp according to claim 1, characterized in that: The pressing wheel (402) is used to press the cable into the third arc-shaped groove (601).

6. The stress-distributing suspension clamp according to claim 1, characterized in that: The dynamic pressure compensation mechanism (603) comprises a mounting groove (6031) provided at the bottom of the isosceles trapezoidal block (6); the top of the mounting groove (6031) is connected to a flow channel (6032); the flow channel (6032) is provided with a plurality of ports; the rubber arc-shaped protrusion (602) is sealingly fixedly connected to the inner wall of the flow channel (6032) at the port; a hydraulic cylinder (6034) is installed in the mounting groove (6031); the telescopic end at the top of the hydraulic cylinder (6034) is fixedly connected to a piston (6033); the outer wall of the piston (6033) is slidably sleeved on the inner wall of the mounting groove (6031); the flow channel (6032) and the mounting groove (6031) between the piston (6033) and the rubber arc-shaped protrusion (602) are filled with fluid; and a pressure sensor is installed on the top of the piston (6033).

7. The stress-distributing suspension clamp according to claim 1, characterized in that: The triangular block (1) is provided with a mounting hole for passing a pin shaft through to mount the suspension wire clamp.

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