Cable movement wear sleeve

Abstract

The utility model discloses a kind of cable rope moving wear-resistant sheaths, including the sheath body that long tubular and axially open opening is opened, the sheath body has elasticity, its opening place detachably connected with box body, the box body is equipped with lubricating medium, box body's outer wall is equipped with injection port, the bottom of box body is equipped with multiple seepage holes, the seepage hole is equipped with elastic opening and closing component, by the movement of cable rope in sheath body, push elastic opening and closing component to open or close;The sheath body is fixed with multiple positioning mechanisms in the end far from opening.Opening place installed box body, can prevent cable rope from opening place falling off in the movement process, and box body is injected with lubricating medium, by the effect of elastic opening and closing piece, lubricating medium can be made from seepage hole into sheath body, to adhere on cable rope, to play the lubricating effect to cable rope.

Description

Technical Field

[0001] This utility model relates to the field of cable sheath technology, specifically a cable moving wear-resistant sheath. Background Technology

[0002] In equipment such as cranes, elevators, and cable cars, cables (steel wire ropes, fiber ropes, etc.) are critical load-bearing and transmission components. In actual operation, cables continuously pass through guide components such as pulleys and drums, experiencing friction and impact. This continuous friction leads to surface wear, broken strands, and even core damage, severely shortening their service life and creating safety hazards. Furthermore, the cable may twist during movement, further exacerbating uneven wear.

[0003] Currently, the main protective methods are applying grease or installing an integral sheath on the sections of the cable where friction is most severe. Applying grease has a short-lived effect, is prone to attracting dust and causing abrasive wear, and requires continuous application, wasting manpower and time and reducing efficiency. On the other hand, integral sheaths need to be installed at the cable ends, which is extremely inconvenient for long-distance cables or already installed cables, and cannot be specifically installed on certain worn sections of the cable. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cable movement wear-resistant sleeve, which is structurally sound, easy to install, and has excellent wear resistance, thereby significantly extending the service life of cables and improving equipment operation safety.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A cable-moving wear-resistant sheath includes a sheath body that is long and tubular with an axial opening. The sheath body is elastic, and a box is detachably connected to its opening. The box contains a lubricating medium, and the outer wall of the box has an injection port. The bottom of the box has multiple seepage holes, and elastic opening and closing components are provided in the seepage holes. The movement of the cable within the sheath body pushes the elastic opening and closing components to open or close. Multiple positioning mechanisms are fixed at the end of the sheath body away from the opening.

[0007] Preferably, the elastic opening and closing assembly includes a sleeve, a sliding rod, a piston, a connecting ring, a limiting ring, a spring, and a first sealing ring. The sleeve is fixed inside the housing and connected to the seepage hole. The outer wall of the lower end of the sleeve has multiple through holes, and the upper end of the sleeve has a sliding hole. The sliding rod is slidably connected to the sliding hole. The lower end of the sliding rod is connected to the piston. The lower end of the piston is arc-shaped. The outer wall of the piston is sealed inside the seepage hole, and the arc-shaped end of the piston is exposed inside the housing. The connecting ring is fixed to the outer wall of the sliding rod, and the limiting ring is fixed to the inner wall of the sleeve. The limiting ring is located below the connecting ring and abuts against it. The spring is sleeved around the sliding rod. The lower end of the spring is connected to the connecting ring, and the upper end is connected to the sleeve. The first sealing ring is embedded in the inner wall of the seepage hole.

[0008] In the above technical solution, when the spring is in a free state, the vertical surface of the piston seals the seepage hole and contacts the first sealing ring, thus preventing lubricant leakage. The arc-shaped end of the piston is located within the sheath body. When the cable moves within the sheath body, its movement compresses the piston, causing it to move into the housing. The piston compresses the spring, allowing the housing to connect with the seepage hole through the through-hole, thus enabling the lubricant to enter the sheath body and adhere to the cable, achieving self-lubrication. When the cable leaves the piston, the piston rebounds under the action of the spring and seals the seepage hole. It should be noted that the piston's movement is random; the seepage hole only opens when the cable compresses the piston during movement and closes when the cable leaves the piston. This achieves both cable lubrication and prevents and reduces the waste of lubricant.

[0009] Preferably, the sheath body is made of a material with elasticity and impact resistance, and the inner wall of the sheath body is provided with a lubricating layer.

[0010] The above technical solution uses a sheath body made of a material with good elasticity and impact resistance, such as thermoplastic polyester elastomer or rubber. On the one hand, it can be easily opened along the opening, and on the other hand, it can be used to absorb and disperse external impact forces, reducing instantaneous stress on the cable.

[0011] The lubricating layer is in direct contact with the cable surface and is made of low-friction materials such as polytetrafluoroethylene or ultra-high molecular weight polyethylene, which can reduce the sliding friction between the sheath and the cable.

[0012] Preferably, the opening has axially recessed mounting platforms on both sides, and the box body has mounting ears on both sides that match the mounting platforms. The mounting ears are fixed to the mounting platforms by a number of screws.

[0013] In the above technical solution, the box is fixed inside the opening with screws, which can prevent the cable from slipping out of the opening.

[0014] Preferably, the injection port is internally threaded with a sealing plug, and the outer wall of the sealing plug is provided with a second sealing ring.

[0015] The above-described technical solution allows lubricating media, such as lubricating oil or graphite, to be injected into the box through the filling port to lubricate the cable. After the lubricating media is added, tightening the sealing plug and then using the second sealing ring prevents leakage of the lubricating media.

[0016] Preferably, the positioning mechanism includes a fixing block, a first clamping plate, and a second clamping plate. The fixing block is fixedly connected to the side of the sheath body away from the opening. The first clamping plate and the second clamping plate are both arc-shaped and arranged opposite to each other. The first clamping plate is fixed to the fixing block. Both ends of the first clamping plate and the second clamping plate are provided with connecting ears, and positioning holes are opened on the connecting ears. The first clamping plate and the second clamping plate are connected by bolts.

[0017] The above technical solution allows for the use of a second clamping plate when the required fixing location is relatively flat. Instead, the connecting lugs on the first clamping plate can be directly fixed to the flat surface using bolts. When the required fixing location is strip-shaped or cylindrical, the sheath can be fixed to the strip-shaped or cylindrical object using bolts through the cooperation of the first and second clamping plates. In short, the sheath can be fixed according to the on-site installation conditions and is adaptable to various installation methods.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The sheath body is elastic, which allows its axial opening to expand. It does not need to be inserted from the end of the cable, and can be quickly installed and removed at any position on the cable, making it easy to maintain and replace.

[0020] (2) The box installed at the opening can prevent the cable from falling off the opening during movement. Moreover, the box is filled with lubricating medium. Through the action of the elastic opening and closing parts, the lubricating medium can enter the sheath body from the seepage hole and adhere to the cable to lubricate the cable. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a breakdown diagram of the flexible opening and closing component;

[0023] Figure 3 This is a cross-sectional view of the flexible opening and closing component;

[0024] Figure 4 This is a cross-sectional view of the present invention;

[0025] Figure 5 for Figure 4 A magnified view of a portion of the image;

[0026] Figure 6 for Figure 5A schematic diagram showing the connection between the through hole and the seepage hole;

[0027] In the figure: 1-Sheath body, 2-Box body, 3-Infiltration hole, 4-Elastic opening and closing component, 41-Sleeve, 42-Slide rod, 43-Piston, 44-Connecting ring, 45-Limiting ring, 46-Spring, 47-First sealing ring, 48-Through hole, 49-Sliding hole, 5-Positioning mechanism, 51-Fixing block, 52-First clamping plate, 53-Second clamping plate, 6-Lubricating layer, 7-Mounting platform, 8-Mounting ear, 9-Sealing plug. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] Please see Figures 1-6 A cable movement wear-resistant sheath includes a sheath body 1 that is elongated and tubular with an axial opening. The sheath body 1 is made of a material with elasticity and impact resistance, such as thermoplastic polyester elastomer or rubber, to absorb and disperse external impact forces and reduce instantaneous stress on the cable. The sheath body 1 is elastic, which allows it to be easily spread open along the opening and also absorbs and disperses external impact forces, reducing instantaneous stress on the cable.

[0031] The inner wall of the sheath body 1 is provided with a lubricating layer 6. The lubricating layer is in direct contact with the cable surface and is made of a low-friction coefficient material such as polytetrafluoroethylene or ultra-high molecular weight polyethylene, which can reduce the sliding friction between the sheath and the cable. Self-lubricating materials are usually applied in the form of a thin film. If it is too thick, it will not only be costly, but may also affect the overall rigidity of the sheath. Its key is to form a complete and low-friction contact surface, and the thickness is usually between 0.1mm and 0.5mm.

[0032] A housing 2 is detachably connected to the opening of the sheath body 1. Axially recessed mounting platforms 7 are provided on both sides of the opening, and mounting ears 8 matching the mounting platforms are provided on both sides of the housing 2. The mounting ears 8 are fixed to the mounting platforms 7 by several screws. The housing 2 is fixed inside the opening by screws, preventing the cable from slipping out. The housing 2 is made of plastic and contains lubricating medium (lubricating oil, graphite, or other lubricating substances). A filling port is provided on the outer wall of the housing 2, with a sealing plug 9 threaded into the filling port. A second sealing ring is provided on the outer wall of the sealing plug 9. Lubricating medium can be injected into the housing through the filling port to lubricate the cable. After adding the lubricating medium, the sealing plug 9 is screwed on, and the second sealing ring is engaged to prevent leakage of the lubricating medium.

[0033] The inner wall of the box 2 is provided with multiple seepage holes 3, which connect the box 2 and the sheath body 1. The seepage holes 3 are provided with elastic opening and closing components 4. The elastic opening and closing components 4 are pushed to open or close by the movement of the cable in the sheath body 1.

[0034] The elastic opening and closing assembly 4 includes a sleeve 41, a sliding rod 42, a piston 43, a connecting ring 44, a limiting ring 45, a spring 46, and a first sealing ring 47. The sleeve 41 is fixed inside the box body 2 and is connected to the seepage hole 3. The outer wall of the lower end of the sleeve 41 is provided with multiple through holes 48, and the upper end of the sleeve 41 is provided with a sliding hole 49. The sliding rod 42 is slidably connected in the sliding hole 49, and the lower end of the sliding rod 42 is connected to the piston 43. The lower end of the piston 43 is arc-shaped. The outer wall of the piston 43 is sealed inside the seepage hole 3. The arc-shaped end of the piston 43 is exposed inside the sheath body 1. The connecting ring 44 is fixed to the outer wall of the slide rod 42, and the limiting ring 45 is fixed to the inner wall of the sleeve 41. The limiting ring 45 is located below the connecting ring 44 and they abut against each other. The spring 46 is sleeved on the periphery of the slide rod 42. The lower end of the spring 46 is connected to the connecting ring 44, and the upper end is connected to the top of the sleeve 41. The first sealing ring 47 is embedded in the inner wall of the seepage hole 3. When the connecting ring 44 contacts the limiting ring 45, the vertical side wall of the piston 43 just seals the seepage hole 3. When the piston 43 contacts the limiting ring 45, the piston 43 is completely separated from the seepage hole 3, thereby connecting the through hole 48 with the seepage hole 3.

[0035] The working principle of this embodiment is as follows:

[0036] The cable is inserted through the opening of the sheath body 1, and then the box 2 is installed at the opening with screws, sealing the sheath body 1. The cable can slide inside the sheath body 1, thus protecting the cable. When the spring 46 is in a free state, the vertical surface of the piston 43 blocks the seepage hole 3 and contacts the first sealing ring 47, thus preventing the lubricating medium from leaking. The arc-shaped end of the piston 43 is located inside the sheath body 1. When the cable moves inside the sheath body 1, the movement of the cable will squeeze the piston 43, causing the piston 43 to move into the box 2. The piston 43 squeezes the spring 46, causing the box 2 to connect with the seepage hole 3 through the through hole 48, thereby allowing the lubricating medium to enter the sheath body 1 and adhere to the cable, achieving self-lubrication of the cable. When the cable leaves the piston 43, the piston 43 will rebound under the action of the spring 46 and block the seepage hole 3. It should be noted that the piston's movement is random; the discharge port only opens when the cable compresses the piston during its movement, and closes when the cable leaves the piston. This achieves both cable lubrication and prevents and reduces the waste of lubricating medium.

[0037] Example 2

[0038] Based on Embodiment 1, the sheath body 1 has multiple positioning mechanisms 5 fixed at the end away from the opening. Each positioning mechanism 5 includes a fixing block 51, a first clamping plate 52, and a second clamping plate 53. The fixing block 51 is fixedly connected to the side of the sheath body 1 away from the opening. Both the first clamping plate 52 and the second clamping plate 53 are arc-shaped and arranged opposite each other. The first clamping plate 52 is fixed to the fixing block 51. Both ends of the first clamping plate 52 and the second clamping plate 53 are provided with connecting ears, and positioning holes are opened on the connecting ears. The first clamping plate 52 and the second clamping plate 53 are connected by bolts. When the location to be fixed is relatively flat, the second clamping plate can be omitted, and the connecting ears on the first clamping plate can be directly fixed to the flat location with bolts. When the location to be fixed is strip-shaped or cylindrical, the sheath can be fixed to the strip-shaped or cylindrical object by bolts through the cooperation of the first and second clamping plates. In other words, the sheath can be fixed according to the on-site installation conditions, adapting to various installation methods.

[0039] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant sheath for moving cables, characterized in that: The device includes a sheath body (1) that is long and tubular with an axial opening. The sheath body (1) is elastic and has a box body (2) that is detachably connected to its opening. The box body (2) contains a lubricating medium. The outer wall of the box body (2) is provided with a filling port. The bottom of the box body (2) is provided with multiple seepage holes (3). The seepage holes (3) are provided with elastic opening and closing components (4). The elastic opening and closing components (4) are opened or closed by moving a cable inside the sheath body (1). Multiple positioning mechanisms (5) are fixed at the end of the sheath body (1) away from the opening.

2. The cable movement wear-resistant sheath according to claim 1, characterized in that: The elastic opening and closing assembly (4) includes a sleeve (41), a slide rod (42), a piston (43), a connecting ring (44), a limiting ring (45), a spring (46), and a first sealing ring (47). The sleeve (41) is fixed inside the box body (2) and is connected to the seepage hole (3). The outer wall of the lower end of the sleeve (41) is provided with multiple through holes (48). The upper end of the sleeve (41) is provided with a sliding hole (49). The slide rod (42) is slidably connected in the sliding hole (49). The lower end of the slide rod (42) is connected to the piston (43). The lower end of the piston (43) is arc-shaped. The outer wall of the piston (43) is sealed inside the seepage hole (3), and the arc-shaped end of the piston (43) is exposed inside the sheath body (1). The connecting ring (44) is fixed on the outer wall of the slide rod (42), and the limiting ring (45) is fixed on the inner wall of the sleeve (41). The limiting ring (45) is located below the connecting ring (44) and they abut against each other. The spring (46) is sleeved on the outer periphery of the slide rod (42). The lower end of the spring (46) is connected to the connecting ring (44), and the upper end is connected to the top of the sleeve (41). The first sealing ring (47) is embedded in the inner wall of the seepage hole (3).

3. The cable movement wear-resistant sheath according to claim 2, characterized in that: The sheath body (1) is made of a material with elasticity and impact resistance, and the inner wall of the sheath body (1) is provided with a lubricating layer (6).

4. The cable movement wear-resistant sheath according to claim 3, characterized in that: The opening has axially recessed mounting platforms (7) on both sides, and the box body (2) has mounting ears (8) that match the mounting platforms on both sides. The mounting ears (8) are fixed to the mounting platforms (7) by several screws.

5. The cable movement wear-resistant sheath according to claim 4, characterized in that: The injection port is threaded with a sealing plug (9), and the outer wall of the sealing plug (9) is provided with a second sealing ring.

6. The cable movement wear-resistant sheath according to claim 5, characterized in that: The positioning mechanism (5) includes a fixing block (51), a first clamping plate (52) and a second clamping plate (53). The fixing block (51) is fixedly connected to the side of the sheath body (1) away from the opening. The first clamping plate (52) and the second clamping plate (53) are both arc-shaped and arranged opposite to each other. The first clamping plate (52) is fixed on the fixing block (51). Both ends of the first clamping plate (52) and the second clamping plate (53) are provided with connecting ears. The connecting ears are provided with positioning holes. The first clamping plate (52) and the second clamping plate (53) are connected by bolts.

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