Downward-pressing transmission mechanism and cable conveyor

Abstract

The utility model discloses a downward pressing transmission mechanism which aims at solving the technical problems that a downward pressing transmission mechanism of a traditional cable conveyor is prone to fatigue damage, and a cable is prone to slipping. The mechanism comprises a pressing plate, a spring installed below the pressing plate, a transverse support installed below the spring, side plates fixed to the two sides of the transverse support, a connecting shaft installed on the side plates, a transmission shaft connected to the side plates and a pressing wheel connected to the transmission shaft. The spring, the base plate and the pressing wheel are made of high-elasticity organic polymer materials such as rubber or polyurethane, the spring can effectively absorb shock, and fatigue damage of the metal spring can be avoided. The pressing wheels made of high-elasticity non-metal materials such as rubber or polyurethane are adopted, and when the pressing wheels are pressed downwards, the rubber elastically deforms, so that the contact area with the cable is increased, the friction traction force is increased, and the conveying force is improved.

Description

Technical Field

[0001] This utility model relates to the field of cable conveying equipment technology, specifically to a pressure transmission mechanism and a cable conveyor. Background Technology

[0002] In the current power and telecommunications industries, cable conveyors are commonly used for auxiliary construction during cable laying. The components of the downward-pressing transmission mechanism in existing cable conveyor equipment are generally made of hard nylon. During operation, the conveyor uses pressure rollers to increase the friction between the cable and the drive belt, thereby driving the cable forward. However, during use, the high-frequency vibration of the conveyor and the prolonged application of pressure can cause fatigue damage to the downward-pressing transmission mechanism; furthermore, it is prone to slippage when squeezing and pulling the cable, leading to traction failure.

[0003] For example, the inventors know of an automatic clamping cable conveyor (patent document number CN219156117U), whose clamping assembly includes a crossbeam connected to a lifting screw, two clamping side plates symmetrically arranged by at least two cross braces, a roller disposed between the two clamping side plates, and connecting members disposed on both sides of the clamping assembly corresponding to the cross braces and used to connect the crossbeam; the driving assembly includes a driven gear with an internal thread corresponding to the lifting screw at the shaft hole and correspondingly screwed to the lifting screw, a self-locking reduction motor fixed relative to the frame plate, and a driving gear fixed outside the shaft of the reduction motor and meshing with the driven gear.

[0004] However, in the process of implementing the technical solutions in the embodiments of this application, the inventors of this application discovered that the above-mentioned technology has at least the following technical problems: First, the pressure roller of this type of conveyor is made of hard nylon material with low coefficient of friction, so it is easy to slip when it comes into contact with the cable during pressure; second, the high-frequency vibration of the conveyor and the long-term application of pressure can easily cause its metal elastic parts to be damaged due to fatigue.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the background technology of this disclosure and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] Based on long-term practical research, the inventors discovered that in the downward transmission mechanism, springs made of highly elastic organic polymer materials such as rubber can effectively reduce shock and avoid metal fatigue damage. At the same time, pressure rollers made of highly elastic non-metallic materials such as rubber or polyurethane increase the contact area with the cable due to elastic deformation of the outer rubber layer during downward pressure (the softer the contact surface and the greater the shape change, the greater the rolling friction), preventing slippage, increasing traction, and thus greatly improving the transmission efficiency.

[0007] In view of at least one of the above technical problems, this disclosure provides a downward transmission mechanism that improves conveying efficiency by using springs and pressure rollers made of highly elastic non-metallic materials such as rubber or polyurethane.

[0008] According to one aspect of this disclosure, a downward pressing transmission mechanism is provided, comprising a pressure plate, a spring mounted under the pressure plate, a cross brace mounted under the spring, side plates fixed on both sides of the cross brace, a connecting shaft mounted on the side plates, a transmission shaft mounted on the side plates, and a pressure roller drivenly connected to the transmission shaft, wherein the spring and / or the pressure roller are made of a highly elastic organic polymer material.

[0009] In some embodiments of this disclosure, the spring is a rubber spring or a polyurethane component.

[0010] In some embodiments of this disclosure, the pressure roller is made of rubber or polyurethane.

[0011] In some embodiments of this disclosure, a cable conveyor is designed, comprising the pressure drive mechanism described in any of the above claims.

[0012] One or more technical solutions provided in the embodiments of this disclosure have at least one of the following technical effects or advantages:

[0013] 1. By replacing metal springs with springs made of highly elastic organic polymer materials such as rubber or polyurethane, the shortcomings of the original metal springs, which are prone to fatigue damage, are effectively solved, thereby reducing operation and maintenance costs.

[0014] 2. Using pressure rollers made of highly elastic organic polymer materials such as rubber or polyurethane can effectively avoid the problem of slippage caused by hard pressure rollers, increase traction force, increase frictional traction force, and thus improve conveying efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a cable conveyor according to one embodiment of the present disclosure.

[0016] Figure 2 This is a schematic diagram of the downward transmission mechanism in one embodiment of the present disclosure.

[0017] In the above figures, 1 is the pressing transmission mechanism, 2 is the base, 3 is the transmission mechanism, 4 is the pressing device, 5 is the power mechanism, 11 is the pressure plate, 12 is the loosening nut, 13 is the rubber spring, 14 is the rubber pad, 15 is the cross brace, 16 is the rubber pressure roller, 17 is the transmission shaft, 18 is the connecting shaft, 19 is the side plate, and 111 is the connecting hole. Detailed Implementation

[0018] In the description of this disclosure, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "vertical," "horizontal," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. The terms "first," "second," etc., used in this application are used to distinguish the described objects and do not have any sequential or technical meaning. And the terms "connection" and "linkage," unless otherwise specified, include both direct and indirect connections (linkages).

[0019] Unless otherwise specified, the unit modules (components, structures, mechanisms) or sensors involved in the following embodiments are all conventional commercially available products.

[0020] This application provides a downward pressure transmission mechanism that solves the problems of easy fatigue of metal springs and easy slippage of conveying cables in the prior art. By replacing the materials used in the original springs and pressure rollers with highly elastic organic polymer materials such as rubber or polyurethane, the idea of ​​improving conveying efficiency is realized.

[0021] The technical solution in this application is to solve the above problems, and the overall approach is as follows:

[0022] During cable transport, a pressing device moves the pressing transmission mechanism downwards, causing the rubber pressure rollers of the pressing transmission mechanism to squeeze the cable. Under the action of force, the rubber springs deform, effectively absorbing and filtering vibrations caused by the operation of the conveyor and uneven contact surfaces between the cable and the pressure rollers. The rubber pressure rollers undergo significant elastic deformation, increasing the contact area with the cable and preventing slippage between them. Adjusting the pressure rollers to the appropriate position ensures a tight fit between the cable and the conveying mechanism, increasing friction, enhancing traction, and resulting in smoother conveyor operation, significantly improved transport efficiency, and a greatly extended service life.

[0023] To better understand the technical solution of this application, the above technical solution will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] This example discloses a downward pressure transmission mechanism and a cable conveyor. See [link to relevant documentation]. Figure 1The cable conveyor specifically includes a base 2, which serves as the main load-bearing support for all mechanisms and equipment within the cable conveyor; a conveying mechanism 3 mounted on the base 2; and a power mechanism 5, also mounted on the base 2. The power mechanism 5 is fixed to the right side of the conveying mechanism 3 and transmits power to it, thereby driving the cable laying. The power mechanism 5 includes a motor that serves as the power source for the cable conveyor, an electrical control system that controls the motor's start, stop, and speed, and a power unit housing for protecting the motor. A pressing device 4 is installed on the left side of the housing of the power mechanism 5, which is connected to the connecting hole 111 on the pressing transmission mechanism 1 via a screw.

[0026] See Figure 2 The downward transmission mechanism includes a pressure plate 11, a connecting hole 111 at the center of the upper plane of the pressure plate 11, a rubber spring 13 installed at the bottom of the pressure plate 11 by a loosening nut 12, a rubber pad 14 fixed at the bottom of the rubber spring 13, a cross brace 15 installed below the rubber pad, and side plates 19 installed on both sides of the cross brace 15. The side plates 19 are defined by the connecting shaft 18, the cross brace 15 and the transmission shaft 17. A rubber pressure roller is installed on the transmission shaft 17.

[0027] During operation, the cable is placed between the conveying mechanism 3 and the pressing transmission mechanism 1. The power mechanism 5 is started, driving the conveying mechanism 3 to operate. Due to the limited friction between the conveying mechanism 3 and the cable, the cable cannot be conveyed. Therefore, the pressing device 4 needs to be rotated to move the pressing transmission mechanism 1 downward until it presses the cable together with the conveying mechanism 3. At this time, the pressing transmission mechanism 1 applies downward pressure to the cable. The elastic material in the pressing transmission mechanism 1 will deform. Among them, the rubber spring 13 will be compressed, producing elastic deformation, thereby applying downward force; the rubber pressure roller 16 will also produce elastic deformation, increasing its contact area with the cable, further increasing the friction between the cable and the conveying mechanism 3, thus allowing the cable to be conveyed normally.

[0028] When the cable is being transported, the pressure transmission mechanism 1, which is in close contact with the cable diameter, will vibrate due to the cable diameter tolerance. In addition, the conveyor itself will vibrate when it is running, so the operation of the conveyor is not stable. However, when the vibration passes through the rubber pressure roller 16 and the rubber spring 13, the rubber material will undergo high-frequency deformation under the force of the vibration, thereby absorbing the vibration of the machine, so the conveyor will operate stably.

[0029] Although some preferred embodiments of this disclosure have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this disclosure.

[0030] Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from the spirit and scope of its inventive concept. Therefore, if such modifications and variations to this disclosure fall within the scope of the claims of this application and their equivalents, the scope of protection of this disclosure is also intended to include such modifications and variations.

Claims

1. A down press drive mechanism comprising a press plate, a spring installed under the press plate, a cross brace installed under the spring, side plates fixed on both sides of the cross brace, a connecting shaft installed on the side plates, a drive shaft installed on the side plates, and a press wheel driven by the drive shaft, characterized in that, The spring or the pressing wheel is a high-elastic organic polymer material piece, which increases the contact area with the cable through elastic deformation and absorbs the conveying vibration, thereby avoiding cable slip and preventing component fatigue damage.

2. The press-down drive mechanism of claim 1, wherein, The spring is a rubber spring or a polyurethane material piece.

3. The press down drive mechanism of claim 1, wherein, The pressing wheel is a rubber or polyurethane material piece.

4. A cable conveyor characterized by: The lower pressing transmission mechanism contains the spring according to any one of claims 1-3.

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