Cable arrangement mechanism of cable take-up and pay-off device

Abstract

The utility model discloses a cable arrangement mechanism of a cable take-up and pay-off device. The cable arrangement mechanism comprises a lead screw shaft assembly, a guide optical axis assembly, a cable arrangement device assembly and an installation base. The cable arranging mechanism further comprises a transmission pair, a first clutch sleeve, a sliding bearing, a shaft check ring, a second clutch sleeve, a transmission key and a shaft end cover plate. Whether the transmission pair outputs torque to the lead screw shaft or not is controlled by controlling separation and reunion of the first separation and reunion sleeve and the second separation and reunion sleeve. When the first clutch sleeve and the second clutch sleeve are meshed together, the transmission pair drives the lead screw shaft to rotate synchronously. When the first clutch sleeve and the second clutch sleeve are separated, the first clutch sleeve rotates independently, the lead screw shaft does not rotate, at the moment, the lead screw shaft can rotate independently through external torque, and therefore the cable arranging device is driven to move back and forth in the transverse direction. Under the condition that the gear transmission pair does not need to be disengaged or the chain does not need to be unfastened, the position of the cable arrangement device can be conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission cable arrangement, in particular to a cable arrangement mechanism of a cable taking-up and releasing device. Background Art

[0002] The cable arrangement mechanism is mainly used in the mechanical parts of the cable retracting and releasing device, such as winches, hoisting devices, etc., and is its key component. Through the reciprocating motion of the cable arrangement mechanism, it can effectively ensure that the cable is effectively wound on the drum, avoiding the phenomenon of tangled ropes and damage to the cable when the drum reels the cable in multiple layers, which is an important guarantee for the normal operation of the equipment to retract, release and store cables.

[0003] At present, the cable arranging mechanisms used in China mainly include: hydraulically driven cable arranging technology, motor driven cable arranging technology and mechanical transmission cable arranging technology.

[0004] The hydraulically driven cable arrangement technology and the motor-driven cable arrangement technology are active cable arrangement technologies. They independently provide rotational power to the cable arrangement screw shaft and realize synchronous cable arrangement through closed-loop control of sensors. However, since the screw shaft used is a single-head screw shaft, it is necessary to judge according to the sensor reversing signal after each layer of the reel is full to realize the cable arrangement reversal. The control accuracy is affected by the interference of sensors, control systems, and external signals.

[0005] Mechanical transmission cable arrangement technology is a traditional technology and the most reliable cable arrangement technology. It mainly realizes the rotation of the screw shaft by changing the speed of the gear transmission pair or chain transmission pair. The screw shaft is processed with a closed-loop double-head spiral groove. The cable arranger moves back and forth along the screw spiral groove through the slider to ensure the safe and orderly arrangement of the equipment cables. In the current mechanical transmission cable arrangement technology, when adjusting the position of the cable arranger, the gear transmission pair needs to be disengaged or the chain is untied before the screw shaft can be rotated to adjust the position of the cable arranger. After adjustment, the transmission pair is re-established and the equipment can resume normal operation. Summary of the invention

[0006] The purpose of the utility model is to overcome the shortcomings of the above-mentioned existing mechanical transmission cable arrangement technology and provide a mechanical transmission cable arrangement mechanism that can easily adjust the position of the cable arrangement without disengaging the gear transmission pair or untying the chain.

[0007] The utility model provides a cable arrangement mechanism of a cable taking-up and releasing device, comprising a screw shaft assembly, a guide optical shaft assembly, a cable arrangement assembly and a mounting seat; the screw shaft assembly and the guide optical shaft assembly are both arranged on the mounting seat, the cable arrangement assembly is arranged on the screw shaft assembly through a slider, and the cable arrangement assembly is also slidably connected with the guide optical shaft assembly; the cable arrangement mechanism also comprises a transmission pair, a first clutch sleeve, a sliding bearing, a shaft retaining ring, a second clutch sleeve, a transmission key and a shaft end cover plate;

[0008] The first clutch sleeve is fixedly mounted on the screw shaft assembly through a sliding bearing, and the end face of the first clutch sleeve has a spline; the transmission pair is transmission-connected to the first clutch sleeve; the end face of the second clutch sleeve also has a spline and meshes with the spline of the first clutch sleeve, the second clutch sleeve is slidingly sleeved on the screw shaft assembly and is located on the outside of the first clutch sleeve, the second clutch sleeve is provided with a slide slot hole in the axial direction of the screw shaft, the transmission key is arranged in the slide slot hole and is fixedly connected to the screw shaft assembly; the shaft retaining ring is arranged on the screw shaft assembly as a limit piece of the second clutch sleeve; the shaft end cover is fixed to the end of the screw shaft assembly and tightly presses against the second clutch sleeve.

[0009] As a preferred solution of the utility model, the transmission pair is a passive sprocket or a passive gear.

[0010] As a preferred solution of the utility model, the outer ring of the first clutch sleeve is provided with a positioning step and a flange, and is installed as a whole with the transmission pair through the positioning step and the flange.

[0011] As a preferred solution of the utility model, an axial limiter is provided on the screw shaft assembly to limit the sliding bearing so that the sliding bearing cannot move axially; the axial limiter is one of a limit retaining ring, a retaining ring for a round nut and a locking retaining ring.

[0012] As a preferred solution of the utility model, the inner ring and both end surfaces of the sliding bearing shaft have a self-lubricating function and are not subject to wear when the screw shaft assembly rotates independently.

[0013] As a preferred solution of the utility model, the second clutch sleeve has an inner step, the depth of the inner step is greater than the axial movable distance of the second clutch sleeve, and the diameter of the inner step is greater than the outer diameter of the shaft end cover.

[0014] As a preferred solution of the utility model, the second clutch sleeve has an interface of a force lever.

[0015] As a preferred solution of the present utility model, the length of the transmission key is greater than the height of the second clutch sleeve.

[0016] As a preferred solution of the utility model, the shaft end cover is fixed to the end of the screw shaft assembly by a fastener and tightly presses against the second clutch sleeve. Loosening the fastener can leave space for the second clutch sleeve to disengage from the first clutch sleeve.

[0017] As a preferred solution of the utility model, a protective cover for protecting the first clutch sleeve and the second clutch sleeve is also provided on the side of the mounting seat.

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

[0019] 1. This new model adopts a safe and reliable mechanical transmission cable, and cleverly designs a clutch structure that is easy to operate. By controlling the clutch of the first clutch sleeve and the second clutch sleeve, it controls whether the transmission pair outputs torque to the screw shaft.

[0020] 2. The novel adjustment structure is ingenious. By disengaging the first clutch sleeve from the second clutch sleeve, the cable arrangement mechanism can easily adjust the position of the cable arrangement without disengaging the gear transmission pair or untying the chain.

[0021] 3. The second clutch sleeve of the utility model has an interface for adding an external force lever. When necessary, the force lever can be applied to the second clutch sleeve to easily rotate the screw shaft, thereby easily adjusting the axial position of the cable arranger assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the cable arrangement mechanism;

[0023] Figure 2 It is a structural schematic diagram of the clutch structure in the cable arrangement mechanism of the utility model;

[0024] Figure 3 is a schematic diagram of the structure of the first clutch sleeve;

[0025] Figure 4 is a schematic diagram of the structure of the second clutch sleeve;

[0026] Figure 5 It is a schematic diagram of the sliding bearing structure;

[0027] Figure 6 It is a structural schematic diagram of the screw shaft assembly;

[0028] Figure 7 It is a structural schematic diagram of the guide optical axis assembly;

[0029] Figure 8 is a structural schematic diagram of a cable arrangement assembly;

[0030] Fig. 9 It is a structural schematic diagram of the cable arranger assembly. DETAILED DESCRIPTION

[0031] The present invention is further described and illustrated below in conjunction with specific embodiments. The embodiments are merely exemplary of the present disclosure and do not define the scope of limitation. The technical features of each embodiment of the present invention may be combined accordingly without conflicting with each other.

[0032] like Figure 1 and Figure 2As shown, the utility model provides a cable-arranging mechanism for a cable-retracting device, comprising a screw shaft assembly 1, a guide light shaft assembly 2, a cable-arranging device assembly 3 and a mounting seat 12; the screw shaft assembly and the guide light shaft assembly are both arranged on the mounting seat, the cable-arranging device assembly is arranged on the screw shaft assembly via a slider, and the cable-arranging device assembly is also slidably connected to the guide light shaft assembly; a closed-loop double-headed spiral groove is machined on the screw shaft, and the cable-arranging device performs a linear reciprocating motion along the screw spiral groove via a slider, so as to ensure that the equipment cables are arranged safely and orderly. The cable-arranging mechanism also includes a transmission pair, a first clutch sleeve, a sliding bearing, a shaft retaining ring, a second clutch sleeve, a transmission key and a shaft end cover plate; as shown Figure 3 The first clutch sleeve 5 is shown. The first clutch sleeve is fixed on the screw shaft assembly through a sliding bearing and is connected to the transmission pair 4. The end face of the first clutch sleeve 5 has a spline. The spline of the first clutch sleeve 5 is engaged with another second clutch sleeve 8 with a spline at the end that can slide in the axial direction of the screw. The structure of the second clutch sleeve 8 is shown in FIG. Figure 4 As shown; the second clutch sleeve 8 is provided with a slide slot hole in the axial direction of the screw shaft, and the transmission key 9 is arranged in the slide slot hole and fixedly connected with the screw shaft assembly; the second clutch sleeve 8 is connected to the screw shaft assembly by transmission key 9 arranged and fixed on the screw shaft assembly, and slides on the screw shaft along the transmission key 9; in a specific embodiment of the utility model, the transmission key length is greater than the barrel height of the second clutch sleeve; a shaft retaining ring 7 is installed on the screw shaft assembly to limit the maximum sliding amount of the second clutch sleeve 8, and the shaft end cover plate 10 is fixed to the end of the screw shaft by fasteners, tightly against the second clutch sleeve, and loosening the fasteners can leave space for the second clutch sleeve to disengage from the first clutch sleeve, and the second clutch sleeve can slide along the transmission key axial direction to the shaft retaining ring limit position, thereby realizing the control of the clutch state of the second clutch sleeve and the first clutch sleeve. In a specific embodiment of the utility model, a protective cover for protecting the first clutch sleeve and the second clutch sleeve is also provided on the side of the mounting seat.

[0033] like Figure 5 The sliding bearing shown is installed between the screw shaft and the first clutch sleeve. One end of the sliding bearing is limited to the step surface of the screw shaft in the axial direction, and the other end is limited by a limit device. In a specific embodiment of the utility model, the sliding bearing is limited by a shaft retaining ring. Other axial limit fixing methods can also be used, such as a locking retaining ring, a round nut and a retaining ring for a round nut, etc., which prevent the sliding bearing from axial movement. The sliding bearing is an oil-free bearing and can be self-lubricated; the sliding bearing has a step in the axial direction, and the outer end faces of the inner ring and the step end have a self-lubricating function, so that the screw shaft is not worn when it rotates independently.

[0034] like Figure 6As shown, in a specific embodiment of the present utility model, the screw shaft assembly includes: a screw shaft, a transparent cover, a bearing seat, a bearing, a seal, a lubricating part, a fastener, etc. A closed-loop double-headed spiral groove is machined on the screw shaft; Figure 7 As shown, the guide optical axis assembly includes an optical axis, an end baffle, and a fastener; Figure 8 and 9 As shown, the cable arrangement assembly is a component of the cable arrangement mechanism that moves the cable in the direction of the drum, including a cable arrangement bracket, a transverse front guide roller group, a longitudinal redirecting roller group, a transverse rear guide roller group, a guide slider group, a cable arrangement sliding bearing, a lubricating part, etc. The cable arrangement bracket supports the transverse front guide roller group, the longitudinal front redirecting roller group, the transverse rear guide roller group, and the longitudinal rear redirecting roller group, and provides a mounting flange for the guide slider group;

[0035] The transverse front guide roller group and the transverse rear guide roller group can be long, short or detachable, and are designed to limit the transverse rope angle of the cable; the longitudinal front redirection roller group has the smallest roller middle diameter and large diameters on both sides, which is convenient for automatic guidance to the middle of the roller; the longitudinal rear redirection roller group has the smallest roller middle diameter and large diameters on both sides, and is provided with wheel edges at both ends, which is convenient for automatic guidance to the middle of the roller, and can limit the transverse rope angle of the cable and control the cable to be on the inner side of the wheel edge;

[0036] After installation, the center line of the guide slider group is parallel to the screw shaft and perpendicular to the mounting flange surface. The upper shaft sleeve of the cable arrangement bracket can be installed with a sliding bearing, and the center line coincides with the center line of the guide optical axis; there is an opening on the cable arrangement bracket to allow the screw shaft to pass through unimpeded; the guide slider group contains a guide slider, and the guide function end of the guide slider is a multi-segment arc notch, the center line of the maximum arc coincides with the screw axis, and is perpendicular to the mounting flange surface of the cable arrangement bracket. The guide slider is made of wear-resistant material and can rotate on the center line of the guide slider shaft. It can freely adapt to the closed-loop double-headed spiral groove on the screw shaft and smoothly realize reversing. The cable arrangement sliding bearing is in the shaft sleeve of the cable arrangement bracket, and the axial limit is achieved through the end cover. The cable arrangement bracket is supported on the optical axis through the cable arrangement sliding bearing and slides axially on the optical axis. The lubricating parts are ports for filling lubricating oil on the cable arrangement sliding bearing and the inner bearings of each roller.

[0037] In a specific embodiment of the utility model, the mounting seat is flange-connected, and the flange surface has a positioning groove. The flange can be a flat flange or a vertical flange.

[0038] In order to more clearly express the working process of the above device, this embodiment also provides a method for adjusting the cable arranger of the cable arranger of the utility model. The cable arranger of the utility model controls whether the transmission pair outputs torque to the screw shaft by controlling the clutch of the second clutch sleeve and the first clutch sleeve, which is as follows:

[0039] When the splines of the first clutch sleeve and the second clutch sleeve are meshed together, the transmission pair drives the first clutch sleeve to rotate, and the first clutch sleeve drives the second clutch sleeve to rotate through the splines. Since the transmission building fixed on the screw shaft is located in the slide slot hole of the second clutch sleeve, the rotation of the second clutch sleeve drives the screw shaft to rotate synchronously.

[0040] When the first clutch sleeve is disengaged from the second clutch sleeve, the transmission pair drives the first clutch sleeve to rotate independently, while the second clutch sleeve and the screw shaft do not rotate. At this time, the screw shaft can be rotated independently by external torque, such as rotating the second clutch sleeve by external force to achieve independent rotation of the screw shaft from the transmission pair, thereby driving the lateral reciprocating movement of the cable arranger. In this way, the position of the cable arranger can be easily adjusted without disengaging the gear transmission pair or untying the chain.

[0041] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. For ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A cable arrangement mechanism of a cable retracting and releasing device, comprising a screw shaft assembly, a guide optical shaft assembly, a cable arrangement assembly and a mounting seat, characterized in that: It also includes a transmission pair, a first clutch sleeve, a sliding bearing, a shaft retaining ring, a second clutch sleeve, a transmission key and a shaft end cover plate; The first clutch sleeve is fixedly mounted on the screw shaft assembly through a sliding bearing, and the end face of the first clutch sleeve has a spline; the transmission pair is transmission-connected to the first clutch sleeve; the end face of the second clutch sleeve also has a spline and meshes with the spline of the first clutch sleeve, the second clutch sleeve is slidingly sleeved on the screw shaft assembly and is located on the outside of the first clutch sleeve, the second clutch sleeve is provided with a slide slot hole in the axial direction of the screw shaft, the transmission key is arranged in the slide slot hole and is fixedly connected to the screw shaft assembly; the shaft retaining ring is arranged on the screw shaft assembly as a limit piece of the second clutch sleeve; the shaft end cover is fixed to the end of the screw shaft assembly and tightly presses against the second clutch sleeve.

2. The cable arrangement mechanism according to claim 1, characterized in that: The transmission pair is a passive sprocket or a passive gear.

3. The cable arrangement mechanism according to claim 1, characterized in that: The outer ring of the first clutch sleeve is provided with a positioning step and a flange, and is integrally mounted with the transmission pair via the positioning step and the flange.

4. The cable arrangement mechanism according to claim 1, characterized in that: The screw shaft assembly is provided with an axial limiter for limiting the sliding bearing; the axial limiter is one of a limit retaining ring and a locking retaining ring.

5. The cable arrangement mechanism according to claim 1, characterized in that: The second clutch sleeve has an inner step, the depth of the inner step is greater than the axial movable distance of the second clutch sleeve, and the diameter of the inner step is greater than the outer diameter of the shaft end cover plate.

6. The cable arrangement mechanism according to claim 1, characterized in that: The second clutch sleeve has an interface of a force lever.

7. The cable arrangement mechanism according to claim 1, characterized in that: The transmission key length is greater than the sleeve height of the second clutch sleeve.

8. The cable arrangement mechanism according to claim 1, characterized in that: The shaft end cover is fixed to the end of the screw shaft assembly through a fastener and is tightly against the second clutch sleeve.

9. The cable arrangement mechanism according to claim 1, characterized in that: A protective cover for protecting the first clutch sleeve and the second clutch sleeve is also arranged on the side of the mounting seat.

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