Winching machine driven by double servo motors

Abstract

The invention relates to a winching machine driven by double servo motors, which comprises a base, a winching roller, a first servo motor, a second servo motor and a tension control mechanism, the winching roller is transversely arranged above the base, and an output shaft of the first servo motor and an output shaft of the second servo motor are respectively connected with the left end and the right end of the winching roller; the tension control mechanism comprises a tension detector which is arranged right in front of the winching roller and facilitates the penetration of a steel wire rope, and the tension detector is driven by a lifting adjusting piece to lift so as to adjust the tension of a pull wire of the winching roller. The double servo motors are adopted to drive the winching roller, the output torque and the rotating speed can be accurately controlled through regulation and control over the double motors, more stable traction quality is provided, the tension detector is driven to ascend and descend through the lifting adjusting piece, the tension of the steel wire rope can be conveniently controlled and adjusted, and the stability is high. The steel wire rope is prevented from being loosened or broken due to insufficient or overlarge tension, and the traction quality and safety are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of capstans, and in particular relates to a capstan driven by double servo motors. Background Art

[0002] A capstan winch is a construction equipment widely used in the fields of electricity, communications, construction, etc. It is mainly used for the traction, laying and tension control of materials such as cables, optical cables, and wires. It mainly drives the transmission mechanism through a power device, which in turn drives the winch or hoist to rotate and generate linear traction force.

[0003] When in use, existing capstans usually use a servo motor to drive the wire rope to reel in, thereby pulling the cable or heavy objects. However, since the capstans often lack a tension control mechanism, problems such as cable breakage, twisting or loosening caused by excessive or insufficient tension cannot be effectively avoided during operation, affecting the quality and safety of traction. Summary of the invention

[0004] The present invention makes improvements on the problems existing in the above-mentioned prior art. That is, the technical problem to be solved by the present invention is to provide a capstan driven by a dual servo motor, which has a reasonable design and can easily control and adjust the tension on the wire rope of the capstan roller, thereby avoiding loosening or breaking of the wire rope caused by insufficient or excessive tension, and improving its traction quality and safety.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a dual-servo motor driven capstan, including a base, a capstan roller, a first servo motor, a second servo motor and a tension control mechanism, the capstan roller is horizontally arranged above the base, the first servo motor and the second servo motor are distributed on the left and right sides of the capstan roller and installed on the top of the base, the output shaft of the first servo motor and the output shaft of the second servo motor are respectively connected to the left and right ends of the capstan roller; the tension control mechanism includes a tension detector arranged in front of the capstan roller and facilitating the passage of the wire rope, the tension detector is driven to rise and fall by a lifting and adjusting member to adjust the wire tension of the capstan roller.

[0006] Furthermore, the lifting adjustment member includes a lifting connection frame that vertically slides with the front end of the base, and the rear end of the lifting connection frame is threaded with a vertically arranged screw rod, which is rotatably mounted on the base; the tension detector is mounted at the front end of the lifting connection frame.

[0007] Furthermore, the tension detector is provided with three tension adjustment wheels.

[0008] Furthermore, the upper end of the screw rod is connected to a rotating handle (74).

[0009] Furthermore, two support blocks distributed on the left and right are provided in the middle of the top surface of the base, and the grinding roller is rotatably connected between the two support blocks; it also includes a protective mechanism for limiting the reversal of the grinding roller, and the protective mechanism includes a ratchet, a pawl, a support frame and a telescopic spring. The two support blocks are rotatably connected to the sides away from each other, and the ratchet is coaxially connected to the grinding roller. The front side of each ratchet is provided with a support frame fixed to the top of the base, and the pawl is rotatably connected to the support frame. A telescopic spring is connected between the pawl and the base, and the telescopic spring pulls the claw of the pawl to clamp the ratchet.

[0010] Furthermore, the pawl is L-shaped.

[0011] Furthermore, connecting frames are respectively provided at the left and right ends of the rear side surface of the base.

[0012] Compared with the prior art, the present invention has the following effects: the present invention is reasonably designed and adopts dual servo motors to drive the twisting grinding rollers. By regulating the dual motors, the output torque and speed can be accurately controlled to provide more stable traction quality, and the tension detector is driven to rise and fall through the lifting and adjusting parts, which can facilitate the control and adjustment of the tension of the wire rope, avoid the loosening or breakage of the wire rope caused by insufficient or excessive tension, and improve its traction quality and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment of the present invention; Figure 2 is a schematic diagram of a three-dimensional structure of an embodiment of the present invention in which a tension control mechanism is omitted; Figure 3 is a schematic diagram of the three-dimensional structure of the tension control mechanism in an embodiment of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the protection mechanism in the embodiment of the present invention.

[0014] In the figure: 1-base; 2-connecting frame; 3-first servo motor; 4-second servo motor; 5-support block; 6-grinding roller; 7-tension control mechanism; 71-lifting connecting frame; 72-tension detector; 73-screw rod; 74-rotating handle; 75-tension adjustment wheel; 8-protection mechanism; 81-ratchet; 82-support frame; 83-pawl; 84-telescopic spring; 9-vertical slide groove. DETAILED DESCRIPTION

[0015] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0017] like Figures 1 to 4 As shown, a capstan driven by a dual servo motor of the present invention is intended to overcome the shortcomings of the existing capstans that, when in use, they often lack a more accurate tension control mechanism, resulting in the inability to effectively avoid problems such as cable breakage, twisting or loosening caused by excessive or insufficient tension during operation, which affects the quality and safety of traction. The capstan specifically includes a base 1, a capstan roller 6, a first servo motor 3, a second servo motor 4 and a tension control mechanism 7, wherein the capstan roller 6 is laterally arranged just above the middle of the base 1, the first servo motor 3 and the second servo motor 4 are distributed on the left and right sides of the capstan roller 6, the first servo motor 3 and the second servo motor 4 are installed at the left and right ends of the top of the base 1, the output shaft of the first servo motor 3 and the output shaft of the second servo motor 4 are respectively connected to the left and right roller shafts of the capstan roller 6, the first servo motor 3 and the second servo motor 4 drive the capstan roller 6 to rotate; the tension control mechanism 7 includes a tension detector 72 arranged just in front of the capstan roller 6 and facilitating the passage of the wire rope, the tension detector 72 is driven to rise and fall by a lifting and lowering adjustment member to adjust the tension of the capstan roller wire drawing. Dual servo motors are used to drive the twisting grinding rollers. By regulating the dual motors, the output torque and speed can be accurately controlled to provide a more stable traction quality. The tension detector is driven up and down by the lifting and adjusting parts, which can facilitate the control and adjustment of the tension of the wire rope.

[0018] In this embodiment, a vertical slide groove 9 is provided in the middle of the front end face of the base 1, and the lifting adjustment member includes a lifting connection frame 71, the rear end of the lifting connection frame 71 is slidably matched with the vertical slide groove 9 in the middle of the front end face of the base 1, and the rear end of the lifting connection frame 71 is screwed with a vertically arranged screw rod 73, and the screw rod 73 is rotatably installed on the base 1; the tension detector 72 is installed at the front end of the lifting connection frame 71. During operation, the tension detector 72 monitors the tension on the wire rope. When the tension of the wire rope needs to be adjusted, the screw rod 73 is rotated, and the lifting connection frame 71 is moved vertically under the action of the thread, so that the tension detector 72 moves up and down, so that the tension on the wire rope can be adjusted to a specified size, thereby facilitating the control and adjustment of the tension on the wire rope of the grinding roller 6.

[0019] In this embodiment, three tension adjustment wheels 75 are rotatably provided on the tension detector 72. When working, the steel wire rope passes between the three tension adjustment wheels 75 of the tension detector 72, so that the tension detector 72 monitors the tension on the steel wire rope. It should be noted that the tension detector is an existing mature product, also called a tension meter, tension sensor, etc., which is widely used in the tension detection of steel wire ropes and cables. Its specific structure and working principle will not be repeated here.

[0020] In this embodiment, in order to facilitate the rotation of the screw rod, a rotating handle 74 is connected to the upper end of the screw rod 73 , and the screw rod 73 is rotated by rotating the handle 74 .

[0021] In this embodiment, two support blocks 5 distributed on the left and right are provided in the middle of the top surface of the base 1 . The support blocks 5 are arranged vertically, and the capstan roller 6 is rotatably connected between the two support blocks 5 .

[0022] In this embodiment, the left and right ends of the rear side of the base 1 are respectively provided with connecting frames 2. When in use, the connecting frames 2 are connected by ropes to fix the base 1.

[0023] In this embodiment, when in use: first place the base 1 in the use area of ​​the capstan, and then fix the base 1 through the connecting frame 2 and the rope; then connect the wire rope on the capstan roller 6 to the cable or heavy object to be towed, and then control the first servo motor 3 and the second servo motor 4 to start respectively according to the needs of use. By regulating the dual motors, the output torque and speed can be accurately controlled to provide a more stable traction quality. After the first servo motor 3 and the second servo motor 4 are started, the grinding roller 6 is rotated on the support block 5, the wire rope on the grinding roller 6 is wound, and the cable or heavy object is pulled; when the heavy object is pulled by the wire rope, the wire rope is passed through the three tension control wheels 75 of the tension detector 72, so that the tension detector 72 detects the tension on the wire rope; when the tension of the wire rope needs to be adjusted, the screw rod 73 is rotated by rotating the handle 74, and the lifting connecting frame 71 is moved up and down under the action of the thread, so that the tension detector 72 is moved up and down synchronously, so that the tension on the wire rope can be adjusted to the specified size, thereby facilitating the control and adjustment of the tension on the wire rope of the grinding roller 6, avoiding the loosening or breakage of the wire rope caused by insufficient or excessive tension, and improving its traction quality and safety.

[0024] In this embodiment, Figure 1 and Figure 4As shown, it also includes a protection mechanism 8 for limiting the reversal of the grinding roller 6, the protection mechanism 8 includes two ratchet wheels 81, two ratchet pawls 83, two support frames 82 and two telescopic springs 84, the two support blocks 5 are rotatably connected to the sides away from each other with the ratchet wheels 81, the ratchet wheels 81 are coaxially connected to the grinding roller 6, the ratchet wheels 81 are installed on the roller shaft of the grinding roller 6, and rotate synchronously with the grinding roller 6; the front side of each ratchet wheel 81 is provided with a support frame 82 fixed to the top of the base 1, the upper end of the support frame 82 has a U-shaped hinge interface, the lower end of the ratchet 83 is rotatably connected to the U-shaped hinge interface of the support frame 82, the claw portion of the ratchet 83 is located at the upper end, and a telescopic spring 84 is connected between the ratchet 83 and the base 1, the telescopic spring is inclined with a high front end and a low rear end, and the telescopic spring 84 pulls the claw portion of the ratchet 83 to clamp the ratchet wheel 81 through tension. It should be noted that, under normal conditions, the telescopic spring is in a stretched state so as to pull the claw portion of the ratchet 83 to firmly clamp the ratchet 81 .

[0025] In this embodiment, the pawl 8 is L-shaped, which is convenient for limiting the position of the ratchet wheel 81.

[0026] By setting up the protection mechanism, the grinding roller 6 can be prevented from reversing. When the first servo motor 3 and the second servo motor 4 are started to pull the heavy object, the grinding roller 6 rotates, and the grinding roller 6 drives the ratchet 81 to rotate forward. Under the pulling force of the telescopic spring 84, the pawl 83 rotates and resets intermittently, which will not affect the forward rotation of the ratchet 81. When the ratchet 81 rotates in the reverse direction, the pawl 83 restricts the ratchet 81 to prevent the ratchet 81 from rotating in the opposite direction, thereby preventing the grinding roller 6 from rotating in the reverse direction, preventing the grinding roller 6 from being damaged, and increasing the service life of the grinding roller 6.

[0027] The advantages of the present invention are: (1) By rotating the handle, the screw rod rotates, and the lifting connection frame moves under the action of the thread, so that the tension detector moves, so that the tension on the wire rope can be adjusted to a specified value, so as to facilitate the control and adjustment of the tension on the wire rope of the grinding roller, avoid the wire rope from being loosened or broken due to insufficient or excessive tension, and improve its traction quality and safety; (2) The rotation of the capstan roller drives the ratchet to rotate forward, and the pawl is intermittently rotated and reset under the action of the telescopic spring, which will not affect the forward rotation of the ratchet; when the ratchet rotates in the reverse direction, the pawl restricts the ratchet to prevent the ratchet from rotating in the reverse direction, thereby preventing the capstan roller from rotating in the reverse direction, preventing damage to the capstan roller, and increasing the service life of the capstan roller.

[0028] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except when it is obviously impossible to use an one-piece molding process).

[0029] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the present invention include states or shapes that are approximate, similar, or close to them.

[0030] Any component provided by the present invention may be assembled from a plurality of separate components, or may be a separate component manufactured by an integral forming process.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A double servo motor driven capstan grinder, Features: The invention comprises a base (1), a grinding roller (6), a first servo motor (3), a second servo motor (4) and a tension control mechanism (7), wherein the grinding roller (6) is arranged horizontally above the base (1), the first servo motor (3) and the second servo motor (4) are distributed on the left and right sides of the grinding roller (6) and are installed on the top of the base (1), and the output shaft of the first servo motor (3) and the output shaft of the second servo motor (4) are respectively connected to the left and right ends of the grinding roller (6); the tension control mechanism (7) comprises a tension detector (72) arranged in front of the grinding roller (6) and facilitating the wire rope to pass through, and the tension detector (72) is driven to rise and fall by a lifting and lowering adjustment member to adjust the wire tension of the grinding roller.

2. A double servo motor driven capstan according to claim 1, Features: The lifting adjustment member comprises a lifting connection frame (71) which is slidably matched with the front end of the base (1) in the vertical direction, and a vertically arranged screw rod (73) is screwed to the rear end of the lifting connection frame (71), and the screw rod (73) is rotatably mounted on the base (1); the tension detector (72) is mounted on the front end of the lifting connection frame (71).

3. A double servo motor driven capstan according to claim 1 or 2, Features: The tension detector (72) is provided with three tension adjustment wheels (75).

4. A double servo motor driven capstan according to claim 2, Features: The upper end of the screw rod (73) is connected to a rotating handle (74).

5. A double servo motor driven capstan according to claim 1, Features: Two support blocks (5) are arranged on the left and right sides of the top surface of the base (1), and the grinding roller (6) is rotatably connected between the two support blocks (5). The base (1) also includes a protection mechanism (8) for limiting the reverse rotation of the grinding roller (6), and the protection mechanism (8) includes a ratchet (81), a ratchet pawl (83), a support frame (82) and a telescopic spring (84). The two support blocks (5) are rotatably connected to the sides away from each other. The ratchet (81) is coaxially connected to the grinding roller (6). The front side of each ratchet (81) is provided with a support frame (82) fixed to the top of the base (1). The ratchet pawl (83) is rotatably connected to the support frame (82). A telescopic spring (84) is connected between the ratchet pawl (83) and the base (1), and the telescopic spring (84) pulls the claw of the ratchet pawl (83) to clamp the ratchet (81).

6. A double servo motor driven capstan according to claim 5, Features: The ratchet pawl (83) is L-shaped.

7. A double servo motor driven capstan according to claim 1, Features: Connecting frames (2) are respectively arranged at the left and right ends of the rear side surface of the base (1).

Images