Sensor cable winding and unwinding device applied to gate monitoring

Abstract

The utility model belongs to the technical field of gate monitoring devices, and provides a sensor cable take-up and pay-off device applied to gate monitoring. The motor comprises a motor box body, a mounting connecting frame arranged at the bottom of the motor box body, and a cable winding drum and a cable guide mechanism which are arranged on the front end side of the motor box body and are driven by the motor box body, the device is installed at the upper end of the gate through the installation connecting frame, the first driving motor and the second driving motor which are arranged in parallel are arranged in the motor box body, the first driving motor is used for driving the cable winding drum to rotate, and the second driving motor is used for driving the cable guiding mechanism to move axially. According to the sensor cable winding and unwinding device, the cable is wound or unwound through the cable winding drum, in the winding or unwinding process, the cable is guided through the cable guiding mechanism, in the winding or unwinding process, the cable can be sequentially wound or unwound along the axial direction of the cable winding drum, and therefore the technical problem that in the prior art, due to the fact that a conventional cable winding drum is adopted, the sensor cable is prone to being clamped is solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of gate monitoring devices, specifically, it relates to a sensor cable retraction device for gate monitoring. Background Technology

[0002] Gates are key pieces of equipment in water conservancy and hydropower projects, responsible for controlling and regulating water flow to ensure the rational use of water resources and flood control safety. The operational status of the gates directly affects the safety and stability of the entire system; therefore, real-time monitoring of their operational status is necessary. Various sensors are used in gate operational status monitoring, such as stress sensors, vibration sensors, and triaxial acceleration sensors. All of these sensors are wired, connecting to a data acquisition card via cables. The cables are wound on cable reels. Because the gate rises or falls during operation, the sensor cables need to rise or fall synchronously. However, during this process, the sensor cables wound on the cable reel are prone to getting stuck. Utility Model Content

[0003] The purpose of this invention is to provide a sensor cable retraction device for gate monitoring, so as to solve the technical problems existing in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A sensor cable reeling and unloading device for gate monitoring includes a motor housing, a mounting bracket at the bottom of the motor housing, a cable reel and a cable guide mechanism located at the front end of the motor housing and driven by the motor housing. The cable guide mechanism includes a mounting plate with one end perpendicularly connected to the front end of the motor housing, a first lead screw support seat vertically located at the other end of the mounting plate, a second lead screw support seat opposite to the first lead screw support seat, a ball screw mechanism located between the first and second lead screw support seats and driven by the motor housing, and a cable guide assembly driven by the ball screw mechanism. The cable guide assembly includes a transverse panel connected to the ball screw mechanism, a main cable wheel located in the middle of the transverse panel and freely rotatable, two auxiliary cable wheels symmetrically located on both sides of the main cable wheel and freely rotatable, and a cable harnessing device located at the right end of the transverse panel and matched with the auxiliary cable wheels at the right end.

[0006] Furthermore, the motor housing contains two motors arranged in parallel: a first drive motor and a second drive motor. The output shaft of the first drive motor extends out of the motor housing and is connected to a rotating shaft. The cable reel is sleeved on the rotating shaft and is driven by the rotating shaft.

[0007] Furthermore, the ball screw mechanism includes a screw disposed between the first screw support seat and the second screw support seat, a screw nut sleeved on the screw, one end of the screw passing through the second screw support seat, and the output shaft of the second drive motor extending outside the motor housing and connected to the end of the screw.

[0008] Furthermore, a limiting rod is provided between the first lead screw support and the second lead screw support. A first limiting roller and a second limiting roller are symmetrically arranged on the side of the lead screw nut. There is a gap between the first limiting roller and the second limiting roller. The limiting rod is placed in the gap and contacts the first limiting roller and the second limiting roller.

[0009] Furthermore, there are two of each of the first and second limiting rollers, and they are arranged at intervals along the length of the lead screw nut.

[0010] Furthermore, a first fixed shaft is vertically arranged in the middle of the horizontal panel, and two second fixed shafts are symmetrically arranged on both sides of the first fixed shaft. The main reel is sleeved on the first fixed shaft, and the auxiliary reel is sleeved on the second fixed shaft.

[0011] Furthermore, the wire harness device includes an L-shaped support rod and a wire harness ring disposed on the upper end of the L-shaped support rod, and the lower end of the L-shaped support rod is fixedly connected to the right end of the transverse panel.

[0012] Furthermore, the centers of the main reel and the auxiliary reel are on the same horizontal line, and the radius of the main reel is greater than the radius of the auxiliary reel.

[0013] Furthermore, the lower end of the horizontal panel is fixedly connected to the upper end of the lead screw nut via a connecting plate.

[0014] Furthermore, an inclined support is provided between the bottom of the mounting plate and the motor housing.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This utility model includes a motor housing, a mounting bracket at the bottom of the motor housing, a cable reel and a cable guide mechanism located at the front end of the motor housing and driven by the motor housing; the entire device is mounted on the upper end of a gate via the mounting bracket. The motor housing contains a first drive motor and a second drive motor arranged in parallel. The first drive motor drives the cable reel to rotate, and the second drive motor drives the cable guide mechanism to move axially. During the gate's raising or lowering process, this device is activated, and the cable reel winds up or unwinds. During this process, the cable guide mechanism guides the cable, ensuring that the cable winds or unwinds sequentially along the axial direction of the cable reel during winding or unwinding. This avoids the technical problem of sensor cables easily getting stuck, which exists in conventional cable reels used in the prior art. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the cable guide assembly and lead screw nut in this utility model.

[0019] Figure 3 This is a schematic diagram showing the fit between the side of the lead screw nut and the limiting rod in this utility model.

[0020] Figure 4 This is a side view of the wire harness device of this utility model.

[0021] The corresponding names of the attached figures are as follows: 1-Motor housing, 2-Mounting connection bracket, 3-Cable reel, 4-Mounting plate, 5-First lead screw support seat, 6-Second lead screw support seat, 7-Horizontal panel, 8-Main cable pulley, 9-First drive motor, 10-Second drive motor, 11-Shaft, 12-Lead screw, 13-Lead screw nut, 14-Second fixed shaft, 15-Sub-cable pulley, 16-L-shaped support rod, 17-Cable tie ring, 18-Limiting rod, 19-First limiting roller, 20-Second limiting roller, 21-Connecting plate, 22-First fixed shaft, 23-Angled support component. Detailed Implementation

[0022] To enable those skilled in the art to have a clearer understanding of this utility model, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described below are merely illustrative of this utility model and facilitate understanding. The technical solutions provided by this utility model are not limited to those provided in the following embodiments, nor should they limit the scope of protection of this utility model.

[0023] Example

[0024] like Figures 1-4As shown, this embodiment provides a sensor cable retraction device for gate monitoring. The device includes a motor housing, the outer shell of which has a conventional cuboid structure and is made of metal. The bottom of the outer shell is provided with an integrated mounting bracket. During installation, the device is installed on the upper end of the gate through the mounting bracket. The installation method can be conventional installation methods such as bolt connection or welding.

[0025] The motor housing contains two drive motors arranged side by side. For easy distinction, they are named the first drive motor and the second drive motor. The output shafts of both drive motors extend outside the motor housing to drive other components. The drive motors can be powered by an external battery or AC power.

[0026] The front end of the motor housing is equipped with a cable reel driven by a first drive motor and a cable guide mechanism driven by a second drive motor.

[0027] In this embodiment, the output shaft of the first drive motor extends outside the motor housing and is connected to a rotating shaft. The output shaft can be connected to the rotating shaft via a coupling. The cable reel is sleeved on the rotating shaft and driven by the rotating shaft. When the first drive motor is started, it drives the rotating shaft to rotate, thereby driving the cable reel to rotate, realizing the winding or unwinding of the sensor cable. For example, the first drive motor rotates forward to wind the sensor cable, and the first motor rotates in reverse to unwind the sensor cable. Alternatively, the first drive motor rotates forward to unwind the sensor cable, and the first motor rotates in reverse to wind the sensor cable.

[0028] In this embodiment, the cable guiding mechanism includes a mounting plate with one end perpendicularly connected to the front end face of the motor housing, a first lead screw support seat vertically disposed at the other end of the mounting plate, a second lead screw support seat disposed opposite to the first lead screw support seat, a ball screw mechanism disposed between the first and second lead screw support seats and driven by a second drive motor, and a cable guiding assembly driven by the ball screw mechanism. In a further preferred embodiment, an inclined support member is also provided between the bottom of the mounting plate and the motor housing to improve the support strength of the mounting plate.

[0029] The ball screw mechanism used in this embodiment includes a screw disposed between a first screw support and a second screw support, a screw nut sleeved on the screw, one end of the screw passing through the second screw support, and the output shaft of a second drive motor extending outside the motor housing and connected to the end of the screw. The two can be connected by a coupling. With the screw and screw nut in place, starting the second drive motor causes the screw to rotate, and the screw nut moves along the axial direction of the screw. The direction of movement of the screw nut can be controlled by the forward and reverse rotation of the second drive motor. For example, when the second drive motor rotates forward, the screw nut moves away from the motor housing; when the second drive motor rotates in reverse, the screw nut moves closer to the motor housing. Alternatively, when the second drive motor rotates forward, the screw nut moves closer to the motor housing; when the second drive motor rotates in reverse, the screw nut moves away from the motor housing.

[0030] To ensure the stability of the lead screw nut's movement on the lead screw, prevent slippage, and improve the guiding effect, this embodiment also provides a limiting rod between the first and second lead screw support seats. A first limiting roller and a second limiting roller are symmetrically arranged vertically on the side of the lead screw nut, with a gap between them. The limiting rod is placed within the gap and contacts the first and second limiting rollers. Preferably, there are two first and two limiting rollers, spaced apart along the length of the lead screw nut. The first and second limiting rollers are fixed to the side of the lead screw nut by a shaft and can rotate around the shaft. Under the action of the limiting rod, when the lead screw nut moves along the lead screw axial direction, the first and second limiting rollers can rotate relative to the shaft.

[0031] The movement of the ball screw should match the movement of the cable reel. For example, if the first drive motor rotates forward and the cable reel rotates forward, and the sensor cable is wound from the inside to the outside, then the second drive motor rotates forward and the screw nut moves from the inside to the outside along the screw axis, that is, from the direction closer to the motor housing to the direction farther away from the motor housing.

[0032] In this embodiment, the cable guiding assembly includes a transverse panel connected to a ball screw mechanism, a main cable pulley located in the center of the transverse panel and freely rotatable, two auxiliary cable pulleys symmetrically arranged on both sides of the main cable pulley and freely rotatable, and a cable harnessing device located at the right end of the transverse panel and matching the auxiliary cable pulleys at the right end. The lower end of the transverse panel is fixedly connected to the upper end of the screw nut via a connecting plate. Preferably, the transverse panel and the connecting plate are an integral structure, and the connecting plate and the screw nut can be connected using conventional methods such as welding or bolting.

[0033] The connection structure between the main and auxiliary cable reels and the horizontal panel is as follows: A first fixed shaft is vertically arranged in the center of the horizontal panel, and two second fixed shafts are symmetrically arranged on both sides of the first fixed shaft. The main cable reel is sleeved on the first fixed shaft and can rotate around the first fixed shaft. The auxiliary cable reel is sleeved on the second fixed shaft and can rotate around the second fixed shaft. During the winding or unwinding process, the cable body contacts the main and auxiliary cable reels, causing them to rotate. The centers of the main and auxiliary cable reels are on the same horizontal line (i.e., the first and second fixed shafts are on the same horizontal line), and the radius of the main cable reel is larger than that of the auxiliary cable reel, for example, greater than 1cm or 2cm. The cable harness includes an L-shaped support rod and a cable harness ring located at the upper end of the L-shaped support rod. The lower end of the L-shaped support rod is fixedly connected to the right end of the horizontal panel.

[0034] In application, the end of the sensor cable is fixed to a cable reel. The winding or unwinding of the sensor cable is achieved by rotating the cable reel forward or backward. During winding or unwinding, the cable is guided by a cable guide mechanism. The cable body is placed on the auxiliary reel on the left, the main reel, and the auxiliary reel on the right, and then passes through the cable loop. The guiding principle is as follows: For example, when the sensor cable is wound, the cable is wound from the inside to the outside. At this time, the cable guide component is driven by the screw nut to move synchronously from the inside to the outside. Conversely, when the sensor cable is unwinding, the cable guide component is driven by the screw nut to move synchronously from the outside to the inside. The above settings achieve cable guidance during winding / unwinding.

[0035] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A sensor cable retraction device for gate monitoring, characterized in that, The system includes a motor housing (1), a mounting bracket (2) located at the bottom of the motor housing (1), a cable reel (3) located at the front end of the motor housing (1) and driven by the motor housing (1), and a cable guiding mechanism; the cable guiding mechanism includes a mounting plate (4) with one end perpendicularly connected to the front end face of the motor housing (1), a first lead screw support seat (5) vertically located at the other end of the mounting plate (4), a second lead screw support seat (6) located opposite to the first lead screw support seat (5), and a cable guide mechanism located at the first lead screw support seat (5). The ball screw mechanism is located between the second lead screw support (6) and driven by the motor housing (1), and a cable guide assembly driven by the ball screw mechanism. The cable guide assembly includes a transverse panel (7) connected to the ball screw mechanism, a main cable wheel (8) located in the middle of the transverse panel (7) and rotatable, two auxiliary cable wheels (15) symmetrically located on both sides of the main cable wheel (8) and rotatable, and a cable harness device located at the right end of the transverse panel (7) and matched with the auxiliary cable wheel (15) at the right end.

2. The sensor cable retraction device for gate monitoring according to claim 1, characterized in that: The motor housing (1) contains two motors arranged in parallel: a first drive motor (9) and a second drive motor (10). The output shaft of the first drive motor (9) extends to the outside of the motor housing (1) and is connected to a rotating shaft (11). The cable reel (3) is sleeved on the rotating shaft (11) and driven by the rotating shaft (11).

3. The sensor cable retraction device for gate monitoring according to claim 2, characterized in that: The ball screw mechanism includes a screw (12) disposed between the first screw support seat (5) and the second screw support seat (6), a screw nut (13) sleeved on the screw (12), one end of the screw (12) passing through the second screw support seat (6), and the output shaft of the second drive motor (10) extending to the outside of the motor housing (1) and connected to the end of the screw (12).

4. The sensor cable retraction device for gate monitoring according to claim 3, characterized in that: A limiting rod (18) is also provided between the first lead screw support seat (5) and the second lead screw support seat (6). A first limiting roller (19) and a second limiting roller (20) are arranged symmetrically on the side of the lead screw nut (13). There is a gap between the first limiting roller (19) and the second limiting roller (20). The limiting rod (18) is placed in the gap and contacts the first limiting roller (19) and the second limiting roller (20).

5. The sensor cable retraction device for gate monitoring according to claim 4, characterized in that: There are two of each of the first limiting roller (19) and the second limiting roller (20), and they are arranged at intervals along the length of the lead screw nut (13).

6. The sensor cable retraction device for gate monitoring according to claim 5, characterized in that: A first fixed shaft (22) is vertically arranged in the middle of the horizontal panel (7), and two second fixed shafts (14) are symmetrically arranged on both sides of the first fixed shaft (22). The main spool (8) is sleeved on the first fixed shaft (22), and the auxiliary spool (15) is sleeved on the second fixed shaft (14).

7. The sensor cable retraction device for gate monitoring according to claim 6, characterized in that: The wire harness device includes an L-shaped support rod (16) and a wire harness ring (17) disposed on the upper end of the L-shaped support rod (16). The lower end of the L-shaped support rod (16) is fixedly connected to the right end of the transverse panel (7).

8. The sensor cable retraction device for gate monitoring according to claim 7, characterized in that: The centers of the main reel (8) and the secondary reel (15) are on the same horizontal line, and the radius of the main reel (8) is greater than the radius of the secondary reel (15).

9. The sensor cable retraction device for gate monitoring according to claim 8, characterized in that: The lower end of the horizontal panel (7) is fixedly connected to the upper end of the lead screw nut (13) via a connecting plate (21).

10. The sensor cable retraction device for gate monitoring according to claim 9, characterized in that: An inclined support (23) is also provided between the bottom of the mounting plate (4) and the motor housing (1).

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