A locomotive cable pay-off assist device

Abstract

The application discloses a locomotive cable unwinding auxiliary device, which comprises a base, a fixed shaft vertically arranged on the base, a placing rack rotatable about the fixed shaft arranged on the base, and a swing self-brake mechanism arranged on the base. The inner end of the self-brake mechanism is clamped with the placing rack, and the outer end of the self-brake mechanism is provided with a wire passing pulley set. The base can be adjusted to support and ensure the stability of the device when placed on uneven ground. The device is flexible in movement and can be lifted by hoisting machinery or moved by a forklift. The automatic brake mechanism is provided, and the rotation arresting hook is used to realize the free rotation and instant stopping of the cable reel. The automatic brake mechanism can be adjusted in radial expansion and contraction and vertical expansion and contraction, so that the distance between the wire passing pulley and the cable reel is kept, and interference is avoided.

Description

Technical Field

[0001] This application belongs to the field of locomotive auxiliary operation technology, specifically relating to a locomotive cable laying auxiliary device. Background Technology

[0002] Because the cable reel is heavy, manual cable laying operations on locomotives require the use of cable laying auxiliary devices.

[0003] Traditional cable laying auxiliary devices generally consist of a load-bearing base, a support rod, a bearing, and a support frame. The former bears the load, while the latter three work together to rotate the cable reel. During operation, the cable reel is suspended on the support frame of the auxiliary device, and external force is used to pull the cable forward to rotate the cable reel for cable laying.

[0004] Traditional cable laying auxiliary devices have the following defects: (1) They do not consider automatic braking devices. When the cable is stopped, the cable reel will still rotate due to inertia, causing the cable to fall; (2) The movement of the device depends entirely on the overhead crane, resulting in wasted time waiting for the operation; (3) When the device is placed on uneven ground, the shaking during the operation is obvious. Utility Model Content

[0005] The purpose of this application is to provide a locomotive cable laying auxiliary device that solves the problems of traditional cable laying auxiliary devices being unable to stop quickly, being inconvenient to move, and being unstable in placement.

[0006] The objective of this application is achieved through the following technical solution: A locomotive cable laying auxiliary device includes a base, a fixed shaft erected on the base, a placement frame rotating about the fixed shaft on the base, a swinging self-braking mechanism on the base, the inner end of the self-braking mechanism engaging with the placement frame, and a cable-passing pulley group on the outer end of the self-braking mechanism.

[0007] Furthermore, the base includes a seat beam, with a seat plate on the upper part of the seat beam. An adjustable lifting ring is screwed onto both the seat beam and the seat plate. The ring of the adjustable lifting ring is located above the seat plate, and the stud of the adjustable lifting ring extends out of the lower surface of the seat beam.

[0008] Furthermore, the seat beams are provided in two places, located on the left and right sides of the seat plate respectively, and the adjustable lifting rings are provided in four places, located at the four corners of the seat plate respectively.

[0009] Furthermore, the upper part of the seat plate is provided with a seat ring, and a number of support rollers that contact the placement frame are arranged circumferentially on the seat ring.

[0010] Furthermore, the upper part of the seat plate is provided with a reinforcing beam located inside the seat ring and arranged in a cross shape.

[0011] Furthermore, the placement rack includes a rack plate, the lower part of which is provided with a rack ring and a brake disc, and the outer periphery of the brake disc is provided with several slots, which are engaged with the inner end of the braking mechanism.

[0012] Furthermore, the lower part of the frame plate is provided with structural beams located inside the frame ring and arranged in a cross shape.

[0013] Furthermore, the aforementioned line-passing pulley assembly includes a pulley frame, with vertical pulleys at the four corners of the pulley frame and two horizontal pulleys, one above the other, in the middle of the pulley frame.

[0014] Furthermore, the self-braking mechanism includes a rocker arm, the middle of which is hinged to the base. The inner end of the rocker arm is provided with an anti-rotation hook for securing the placement bracket. A return tension spring is provided between the outer end of the rocker arm and the base. The outer end of the rocker arm is connected to the line guide pulley group.

[0015] Furthermore, the base is provided with an adjustment seat, on which an adjustment screw is screwed, and the adjustment screw is connected to a reset spring.

[0016] Furthermore, the lower part of the outer end of the swing arm is provided with a swing roller, which travels on the base.

[0017] Furthermore, the outer end of the swing arm is connected to the radial telescopic rod, the radial telescopic rod is connected to the tangential rod, the tangential rod is provided with a vertical telescopic rod, and the vertical telescopic rod is provided with a pulley block.

[0018] The beneficial effects of this application are: (1) This device has an adjustable base support to ensure stability when the device is placed on uneven ground.

[0019] (2) This device enhances the flexibility of device movement, and can be lifted by cranes or moved by forklifts.

[0020] (3) This device is equipped with an automatic braking mechanism, which uses an anti-rotation hook to enable the cable reel to rotate freely and stop instantly.

[0021] (4) The automatic braking mechanism of this device can be adjusted for radial and vertical extension and extension to maintain the distance between the line pulley and the cable reel and avoid interference.

[0022] The aforementioned main solution and its various further alternatives can be freely combined to form multiple solutions, all of which are solutions that can be adopted and claimed in this application; furthermore, the (non-conflicting alternatives) can also be freely combined with each other and with other alternatives. Those skilled in the art, after understanding this solution, will realize from the prior art and common general knowledge that there are many combinations, all of which are technical solutions to be protected in this application, and will not be exhaustively listed here. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural view of this application.

[0024] Figure 2 This is the main view of the structure of this application.

[0025] Figure 3 This is a schematic diagram of the self-braking mechanism at the stop position in this application.

[0026] Figure 4 This is a schematic diagram of the self-braking mechanism at the exit position of this application.

[0027] In the diagram: 1-base, 2-placement frame, 3-fixed shaft, 4-line guide pulley block, 5-self-braking mechanism, 6-cable reel; 101-seat beam, 102-seat plate, 103-adjustable lifting ring, 104-seat ring, 105-support roller, 106-reinforcing beam, 107-placement beam; 201-frame plate, 202-frame ring, 203-brake disc, 204-slot, 205-structural beam; 401-pulley frame, 402-vertical pulley, 403-transverse pulley; 501-swing rod, 502-anti-rotation hook, 503-radial telescopic rod, 504-tangential rod, 505-vertical telescopic rod, 506-reset tension spring, 507-adjusting screw, 508-adjusting seat, 509-swinging roller. Detailed Implementation

[0028] The present application will be further described below with reference to specific embodiments and accompanying drawings.

[0029] refer to Figures 1-4 As shown, a locomotive cable laying auxiliary device includes a base 1, a placement frame 2, a fixed shaft 3, a cable-passing pulley group 4, and a self-braking mechanism 5.

[0030] This device can store cable reels with a maximum diameter of 1000mm and a maximum load capacity of 3000kg, meeting the size and weight requirements of all in-use cable reels. The base 1 serves as the foundation of the device, enabling both the hoisting and forklifting of the entire device and the installation and securing of other components.

[0031] A fixed shaft 3 is erected on the base 1. The fixed shaft 3 can pass through the center hole of the cable reel 6, so that the cable reel 6 can be stably placed on the placement frame 2. The base 1 is provided with a placement frame 2 that rotates around the fixed shaft 3. The placement frame 2 is used to support the cable reel 6. The rotation of the placement frame 2 drives the cable reel 6 to rotate synchronously, so as to realize the cable laying operation. If the placement frame 2 is locked and limited, the cable reel 6 cannot be laid.

[0032] The base 1 is equipped with a swinging self-braking mechanism 5, which switches between the stop position and the cable delivery position by swinging. The inner end of the self-braking mechanism 5 is engaged with the placement rack 2. That is, in the stop position, the self-braking mechanism 5 keeps engaged with the placement rack 2, so that the placement rack 2 cannot rotate to deliver the cable. In the cable delivery position, the self-braking mechanism 5 releases the engagement with the placement rack 2, and the placement rack 2 can rotate freely to deliver the cable.

[0033] The outer end of the self-braking mechanism 5 is equipped with a cable guide pulley group 4, which guides the cable through a transition, reducing friction and ensuring smooth cable exit. Simultaneously, the cable guide pulley group 4 is mounted on the self-braking mechanism 5, meaning the force of pulling the cable can be transmitted to the cable guide pulley group 4, thereby causing the self-braking mechanism 5 to swing. The self-braking mechanism 5 releases its clamp on the placement rack 2 to allow cable exit, or, if pulling stops, the self-braking mechanism 5, along with the cable guide pulley group 4, resets, restoring its clamping limit on the placement rack 2 and stopping the placement rack 2 and the cable reel 6 on it to prevent inertial rotation.

[0034] The base 1 includes a seat beam 101, a seat plate 102, an adjustable lifting ring 103, a seat ring 104, supporting rollers 105, a reinforcing beam 106, and a mounting beam 107. The base 1 measures 1100×1000mm and can be lifted by cranes (4 lifting rings) or moved by forklifts (the base forks can be inserted), enhancing the mobility of the device.

[0035] A seat plate 102 is provided on the upper part of the seat beam 101. The seat beam 101 is made of square steel, and the seat plate 102 is made of rectangular steel plate. The two are connected by welding. The seat beam 101 is used to elevate the device so that a forklift can insert into the lower part of the seat plate 102 to facilitate forklift transport. The seat plate 102 is used to form a flat bearing surface. Preferably, there are two seat beams 101, located on the left and right sides of the seat plate 102 respectively, forming an inverted U-shaped structure, which ensures both structural strength and forklift transport function. Preferably, the seat plate 102 has a hollow structure.

[0036] Adjustable lifting rings 103 are screwed onto both the seat beam 101 and the seat plate 102. The ring portion of the adjustable lifting ring 103 is located above the seat plate 102 for attachment of hooks or ropes. The stud of the adjustable lifting ring 103 extends beyond the lower surface of the seat beam 101. By rotating the adjustable lifting ring 103, the extension length of its lower end can be adjusted, allowing the entire device to be leveled and ensuring stability when placed on uneven ground. Preferably, four adjustable lifting rings 103 are provided and located at the four corners of the seat plate 102 to ensure the stability of the device during hoisting.

[0037] A seat ring 104 is welded to the upper part of the seat plate 102. Several support rollers 105 are arranged circumferentially on the seat ring 104, which contact the placement frame 2. The seat ring 104 is used to reinforce the seat plate 102 and to provide a base for the placement of the support rollers 105. The support rollers 105 support the outer periphery of the placement frame 2 and reduce friction through rolling to ensure smooth rotation of the placement frame 2.

[0038] A reinforcing beam 106, arranged in a cross shape and located inside the seat ring 104, is welded to the upper part of the seat plate 102. The reinforcing beam 106 is used to reinforce the seat plate 102. At the same time, a mounting beam 107 is also welded to the seat plate 102 between two adjacent reinforcing beams 106. The reinforcing beam 106 and the mounting beam 107 together provide support for the installation of the self-braking mechanism 5.

[0039] The mounting frame 2 includes a frame plate 201, a frame ring 202, a brake disc 203, and a structural beam 205. The frame plate 201 is a circular steel plate with a central opening, used to form a circular bearing surface for placing the cable reel 6. Preferably, the frame plate 201 has a hollow structure. The frame ring 202 and the brake disc 203 are welded to the lower part of the frame plate 201. The frame ring 202 contacts the support rollers 105 on the base 1, and the rotation of the frame plate 201 is achieved through the action of the support rollers 105 on the frame ring 202.

[0040] The brake disc 203 is concentrically arranged with the support plate 201. The outer periphery of the brake disc 203 has several slots 204. When the inner end of the self-braking mechanism 5 engages with a slot 204, locking and stopping the rotation is achieved. Moving the outer end of the self-braking mechanism 5 out of the slot 204 unlocks the mechanism for wire feeding. The brake disc 203 is mounted on the base 1 via a pressure bearing, providing rotational support for the center of the support plate 201. A structural beam 205, arranged in a cross shape and located inside the support ring 202, is welded to the lower part of the support plate 201 to reinforce it.

[0041] The cable guide pulley block 4 includes a pulley frame 401, vertical pulleys 402, and horizontal pulleys 403. Vertical pulleys 402 are located at the four corners of the pulley frame 401 to guide and limit the movement of cables entering and exiting the pulley block in the horizontal direction. Two horizontal pulleys 403 are located in the middle of the pulley frame 401 to guide and limit the movement of cables in the vertical direction.

[0042] The self-braking mechanism 5 includes a rocker arm 501, an anti-rotation hook 502, a radial telescopic rod 503, a tangential rod 504, a vertical telescopic rod 505, a reset spring 506, an adjusting screw 507, and an adjusting seat 508.

[0043] The middle part of the swing arm 501 is hinged to the mounting beam 107 of the base 1 via a pin, enabling the swing arm 501 to swing and rotate flexibly in the horizontal plane. The inner end of the swing arm 501 is equipped with an anti-rotation hook 502 for engaging the mounting bracket 2. The anti-rotation hook 502 is L-shaped and can hook and engage the brake disc 203 in the slot 204. A return spring 506 is provided between the outer end of the swing arm 501 and the base 1, enabling the swing arm 501 to automatically return to its original position and maintain stable engagement with the mounting bracket 2. The outer end of the swing arm 501 is connected to the guide pulley group 4, allowing the swing arm 501 to swing through the pulling force acting on the guide pulley group 4.

[0044] During cable laying, the forward movement of the cable causes the cable reel and the placement rack to rotate due to static friction. This forces the anti-rotation hook inside the automatic braking mechanism to lift, allowing the cable reel to rotate freely and the cable to exit. When cable exit is stopped, the anti-rotation hook engages with the brake teeth groove of the brake disc under the action of the return spring, restricting the rotation of the brake disc and achieving immediate automatic braking.

[0045] An adjusting seat 508 is welded onto the reinforcing beam 106 of the base 1. An adjusting screw 507 is screwed onto the adjusting seat 508. The adjusting screw 507 is connected to the return spring 506. By rotating the adjusting screw 507, the tension of the return spring 506 can be adjusted to meet the different return forces required by cable reels 6 of different weights. A swing roller 509 is provided at the lower outer end of the swing arm 501. The swing roller 509 travels on the seat plate 102 of the base 1 to ensure that the swing arm 501 swings smoothly and flexibly.

[0046] The outer end of the swing rod 501 is welded to the radial telescopic rod 503. The telescopic length of the radial telescopic rod 503 can be adjusted according to the diameter of the cable reel to maintain the distance between the vertical telescopic rod 505 or the cable guide pulley group 4 and the cable reel, avoiding interference. The radial telescopic rod 503 is connected to the tangential rod 504, which transitions the cable guide pulley group 4 to the end corner, positioning it appropriately. The tangential rod 504 has a vertical telescopic rod 505, which has a pulley frame 401 for the cable guide pulley group 4. The telescopic length of the vertical telescopic rod 505 can be adjusted according to the height of the cable reel to adjust the vertical height of the cable guide pulley group 4. The telescopic rod can be adjusted by having several holes on two sleeve rods, with the holes engaging with pins.

[0047] The workflow of this application is as follows: When using this device, it can be moved to a designated site using lifting machinery or a forklift. First, adjust the adjustable lifting rings to ensure the device is placed stably. Second, place the cable reel on the placement frame and adjust the radial position of the vertical telescopic rod and the cable guide pulley block to ensure the distance between the cable reel and the pulley block. Third, lead the cable out through the cable guide pulley block. To facilitate cable lead-out, adjust the vertical position of the cable guide pulley block according to the height of the cable reel.

[0048] During cable laying, external force pulls the cable forward, forcing the anti-rotation hook inside the braking mechanism to lift. At this time, the cable reel can rotate freely on the placement frame, allowing workers to lay the cable. When laying stops and the external force on the cable disappears, the anti-rotation hook engages with the brake teeth of the brake disc under the action of the return spring, restricting the rotation of the brake disc and achieving immediate automatic braking.

[0049] The foregoing basic examples and their further alternative examples can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed in this application. In the scheme of this application, each alternative example can be arbitrarily combined with any other basic example and alternative example.

[0050] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A locomotive cable laying auxiliary device, comprising a base (1), characterized in that: The base (1) is provided with a fixed shaft (3) erected on it. The base (1) is provided with a placement frame (2) that rotates around the fixed shaft (3) as the axis. The base (1) is provided with a swinging self-braking mechanism (5). The inner end of the self-braking mechanism (5) is engaged with the placement frame (2). The outer end of the self-braking mechanism (5) is provided with a line pulley group (4).

2. The locomotive cable laying auxiliary device according to claim 1, characterized in that: The base (1) includes a seat beam (101), and a seat plate (102) is provided on the upper part of the seat beam (101). An adjustable lifting ring (103) is screwed onto both the seat beam (101) and the seat plate (102). The ring of the adjustable lifting ring (103) is located above the seat plate (102), and the stud of the adjustable lifting ring (103) extends out of the lower surface of the seat beam (101).

3. The locomotive cable laying auxiliary device according to claim 2, characterized in that: The seat beam (101) has two beams and is located on the left and right sides of the seat plate (102) respectively. The adjustable lifting ring (103) has four rings and is located at the four corners of the seat plate (102) respectively.

4. The locomotive cable laying auxiliary device according to claim 2, characterized in that: The upper part of the seat plate (102) is provided with a seat ring (104), and a number of support rollers (105) that contact the placement frame (2) are arranged circumferentially on the seat ring (104).

5. The locomotive cable laying auxiliary device according to claim 1, characterized in that: The placement rack (2) includes a rack plate (201), and the lower part of the rack plate (201) is provided with a rack ring (202) and a brake disc (203). The outer periphery of the brake disc (203) is provided with several slots (204), and the inner end of the self-braking mechanism (5) is engaged with the slots (204).

6. The locomotive cable laying auxiliary device according to claim 1, characterized in that: The line-crossing pulley group (4) includes a pulley frame (401), with vertical pulleys (402) at the four corners of the pulley frame (401) and two horizontal pulleys (403) at the middle of the pulley frame (401).

7. The locomotive cable laying auxiliary device according to claim 1, characterized in that: The self-braking mechanism (5) includes a rocker arm (501), the middle part of which is hinged to the base (1). The inner end of the rocker arm (501) is provided with a stop hook (502) for securing the placement frame (2). A reset spring (506) is provided between the outer end of the rocker arm (501) and the base (1). The outer end of the rocker arm (501) is connected to the line pulley group (4).

8. The locomotive cable laying auxiliary device according to claim 7, characterized in that: The base (1) is provided with an adjustment seat (508), and an adjustment screw (507) is screwed onto the adjustment seat (508). The adjustment screw (507) is connected to the reset spring (506).

9. The locomotive cable laying auxiliary device according to claim 7, characterized in that: The lower part of the outer end of the swing rod (501) is provided with a swing roller (509), which moves on the base (1).

10. The locomotive cable laying auxiliary device according to claim 7, characterized in that: The outer end of the swing rod (501) is connected to the radial telescopic rod (503), the radial telescopic rod (503) is connected to the tangential rod (504), the tangential rod (504) is provided with a vertical telescopic rod (505), and the vertical telescopic rod (505) is provided with a pulley block (4).

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