Integral dropper length adjusting tool

Abstract

The utility model relates to an integral dropper length adjusting tool which comprises an adjusting mechanism and a tightener arranged on the adjusting mechanism, and the upper portion and the lower portion of the tightener are respectively connected with a steel wire rope. The steel wire rope below the tightener can be wound on a tightening shaft of the tightener under the action of the tightener and is prevented from reversing under the action of the ratchet mechanism; the adjusting mechanism comprises a vertically arranged adjusting plate and a graduated scale and a sliding block which are arranged on one side of the adjusting plate, a sliding rail corresponding to the sliding block is arranged on the adjusting plate, a cylindrical lock catch is vertically and fixedly arranged on the sliding block, and the side wall of the lock catch is in threaded connection with a puller bolt; the tightener is fixedly arranged at the upper end of the adjusting plate, the steel wire rope below the tightener penetrates out of the center of the lock catch downwards and then is connected with the one-way lock head, and the steel wire rope above the tightener is connected with the one-way lock head. According to the integral dropper length adjusting tool, the dropper is convenient to install and accurate to adjust, and the problem of repeated adjustment is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrified railway contact network technical field especially relates to a whole pendant length adjustment tool. BACKGROUND

[0002] Whole pendant is one of important components of railway contact network system, it is installed between load cable and contact wire, is used for hanging contact suspension, improves the uniformity of contact wire's sag and elasticity, adjusts the structural height of contact suspension, and plays certain bearing capacity and current-carrying capacity. When pantograph passes, contact wire continuously lifts, vibrates, and whole pendant also lifts, bends along with it.

[0003] When installing pendant on site, the pendant needs to bear the gravity of contact wire, and at the same time, the height of contact wire relative to rail surface needs to be adjusted, which has certain difficulty. After reaching the standard height, the adjusting bolt is fastened, and at the same time, the adjusting bolt needs to be close to the heart-shaped guard ring, so the installation of the adjusting bolt is inconvenient. Therefore, a whole pendant length adjustment tool for connecting load cable and contact wire is designed, which connects load cable and contact wire, bears the weight of contact wire, makes the installation of pendant convenient, facilitates the adjustment of the height of contact wire at the installation place of pendant, adjusts accurately and avoids the problem of repeated adjustment. CONTENT OF THE UTILITY MODEL

[0004] The utility model solves the technical problem to provide a whole pendant length adjustment tool, connect load cable and contact wire, bear the weight of contact wire, make the installation of pendant convenient, facilitate the adjustment of the height of contact wire at the installation place of pendant, adjust accurately and avoid the problem of repeated adjustment.

[0005] A whole pendant length adjustment tool, which comprises an adjusting mechanism and a tightener arranged on the adjusting mechanism, a steel wire rope is connected above and below the tightener, wherein the steel wire rope below the tightener can be wound on the tightening shaft of the tightener under the action of the tightener and prevented from reversing under the action of the ratchet mechanism.

[0006] The adjusting mechanism comprises a vertically arranged adjusting plate, a scale and a sliding block arranged on one side of the adjusting plate, the adjusting plate is provided with a sliding rail corresponding to the sliding block, a cylindrical lock catch is vertically fixed on the sliding block, and a jacking bolt is threadedly connected to the side wall of the lock catch; the tightener is fixed to the upper end of the adjusting plate, the steel wire rope below the tightener is connected together with the one-way lock head after being led out from the center of the lock catch downward, and the steel wire rope above the tightener is connected together with the one-way lock head.

[0007] As an embodiment of the utility model, the scale is arranged in the up-down direction of the adjusting plate, the sliding rail comprises two symmetrically arranged L-shaped guide plates on both sides of the scale, and the sliding block is convex and can be clamped in the sliding rail and slide up and down along the adjusting plate.

[0008] As an embodiment of the utility model, the lock catch side wall is provided with a threaded hole along the radial direction, a counterbore is arranged on the sliding block, and the lock catch and the sliding block are detachably connected through a connecting bolt.

[0009] As an embodiment of the utility model, the tightening device comprises a square frame body, a tightening shaft is horizontally arranged in the middle of the frame body and can rotate, a connecting disc is coaxially and fixedly connected to one end of the tightening shaft after penetrating out of the frame body; the ratchet mechanism comprises a ratchet wheel arranged on the side of the connecting disc, an installation plate is rotatably arranged on the frame body on the side of the ratchet wheel through a rotating shaft, the rotating shaft is parallel to the axis of the connecting disc; a pawl matched with the ratchet wheel is arranged on the lower part of the installation plate, a jacking block is arranged on the upper part of the installation plate, an installation block is fixedly arranged on the frame body on the side of the jacking block, a guide column is arranged on the installation block towards the side of the jacking block, a second spring is sleeved on the guide column, and in a free state, the pawl is pressed on the ratchet wheel under the action of the second spring.

[0010] A third through hole is formed in the middle of the tightening shaft, a second through hole penetrating up and down is formed in the bottom of the frame body directly below the third through hole, the upper end of the steel wire rope below the tightening device is connected to the third through hole, and the lower end penetrates out of the second through hole downwards; an adjusting block is fixedly arranged at one end of the tightening shaft, and a square or hexagonal adjusting hole is formed in the outer end face of the adjusting block.

[0011] As an embodiment of the utility model, the adjusting block is fixedly arranged on the outer end of the connecting disc; the ratchet wheel is arranged on the outer side or the inner side of the connecting disc, the guide column is horizontally arranged, and the jacking block is provided with an accommodation groove for accommodating the second spring.

[0012] As an embodiment of the utility model, a first through hole is arranged on the top of the frame body, the lower end of the steel wire rope above the tightening device is fixedly connected to the ball after penetrating through the first through hole, and the upper end of the steel wire rope below the tightening device is arranged at the third through hole through the ball.

[0013] As an embodiment of the utility model, the frame body is fixedly connected together through bolts at the openings of the two U-shaped frames opposite to each other; the tightening shaft is fixedly connected together through bolts at the flat surfaces of the two semicircular columnar bodies opposite to each other.

[0014] As an embodiment of the utility model, the one-way lock head includes a cylindrical lock body, a cylindrical hole is formed in the upper end of the lock body, a tapered hole is arranged in the middle of the cylindrical hole, the bottom center of the cylindrical hole is connected with the lower sidewall of the lock body through an arc-shaped first perforation, a press column is arranged in the cylindrical hole, a second perforation is formed in the middle of the press column along the axial direction, a plurality of side holes are uniformly formed in the sidewall of the press column, the side holes are located at the tapered hole and a ball is arranged in the side holes, a first spring is arranged between the press column and the bottom of the cylindrical hole, the steel wire rope passes through the second perforation and then passes out from the first perforation.

[0015] As an embodiment of the utility model, the upper end diameter of the tapered hole is the same as the diameter of the cylindrical hole, and the lower end diameter is larger than the diameter of the cylindrical hole.

[0016] The above technical scheme has the following beneficial effects:

[0017] The whole hanging string length adjusting tool is connected with the load bearing cable and the contact wire, bears the weight of the contact wire, in use, first, the guide height is measured by the laser measuring instrument, the adjustment amount is determined, the hooks on the one-way lock heads at the two ends of the whole hanging string length adjusting tool are hung on the load bearing cable and the contact wire respectively, the steel wire rope in the lock catch is tightened through the jacking bolt, then the steel wire rope is wound through the rotating tightening shaft, the distance of the adjustment amount is determined by the movement of the slide block by comparing the scale, the position adjustment is completed, one step is reached, the problems of inaccurate adjustment and repeated adjustment are solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the utility model.

[0019] Figure 2 is Figure 1 is a local enlarged schematic view of A in the figure.

[0020] Figure 3 is another angle structural schematic view of the utility model.

[0021] Figure 4 is Figure 3 is a local enlarged schematic view of B in the figure.

[0022] Figure 5 is a structural schematic view of the tightening device in the utility model.

[0023] Figure 6 is another angle structural schematic view of the tightening device in the utility model.

[0024] Figure 7Is another angle structure schematic diagram of the tightener in the utility model.

[0025] Figure 8 Is the sectional structure schematic diagram of the one-way lock head in the utility model.

[0026] Figure 9 Is the structure schematic diagram of the adjusting plate, the scale and the slide rail in the utility model.

[0027] Figure 10 Is the structure schematic diagram of the slide block and the lock catch in the utility model.

[0028] Figure 11 Is another angle structure schematic diagram of the slide block and the lock catch in the utility model.

[0029] Among them: 100 one-way lock head, 200 tightener, 300 adjusting mechanism;

[0030] 1 lock body, 2 conical hole, 3 cylindrical hole, 4 first perforation, 5 pressure column, 6 second perforation, 7 side hole, 8 ball, 9 first spring, 10 steel wire rope, 1001 ball, 11 hook, 12 frame, 13 first via hole, 14 second via hole, 15 tightening shaft, 1501 third via hole, 1502 screw hole, 16 connecting disc, 17 ratchet, 18 adjusting block, 19 adjusting hole, 20 mounting plate, 21 pawl, 22 jacking block, 23 rotating shaft, 24 mounting block, 25 guide column, 26 second spring, 27 screw, 28 adjusting plate, 29 slide rail, 30 slide block, 31 lock catch, 32 connecting bolt, 33 jacking bolt, 34 scale. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is clearly and completely described below in conjunction with specific embodiments.

[0032] As Figures 1-4 The utility model discloses a whole hanging line length adjusting tool, which comprises an adjusting mechanism 300 and a tightener 200 arranged on the adjusting mechanism 300, and a steel wire rope 10 is connected above and below the tightener 200, wherein the steel wire rope 10 below the tightener 200 can be wound on a tightening shaft 15 of the tightener 200 under the action of the tightener 200 and prevented from reversing under the action of a ratchet mechanism.

[0033] The adjusting mechanism 300 comprises an adjusting plate 28 arranged vertically, a scale 34 and a sliding block 30 arranged on one side of the adjusting plate 28, the adjusting plate 28 is provided with a sliding rail 29 corresponding to the sliding block 30, a cylindrical lock catch 31 is vertically fixed on the sliding block 30, and a tensioning bolt 33 is threadedly connected to the side wall of the lock catch 31; the tensioner 200 is fixed to the upper end of the adjusting plate 28, the steel wire rope 10 below the tensioner 200 passes out from the center of the lock catch 31 downward and is connected with the one-way lock head 100, and the steel wire rope 10 above the tensioner 200 is connected with the one-way lock head 100.

[0034] The overall dropper length adjusting tool is used for connecting a load bearing cable and a contact wire, bearing the weight of the contact wire, and in use, first, a laser measuring instrument is used to measure the height of the guide wire, the adjustment amount is determined, the hooks 11 on the one-way lock heads 100 at the two ends of the overall dropper length adjusting tool are hung on the load bearing cable and the contact wire respectively, the steel wire rope 10 in the lock catch 31 is tightened by the tensioning bolt 33, then the steel wire rope 10 is wound by rotating the tightening shaft 15, and the sliding block 30 is moved by a distance of the determined adjustment amount according to the scale 34, so that the position adjustment is completed, one step is achieved, and the problems of inaccurate adjustment and repeated adjustment are solved.

[0035] In daily maintenance of the contact net, adjustment of the wire slope, the anchor lifting, sectional insulators and other devices involves adjustment of the dropper, generally, a laser measuring instrument is used to measure the height of the guide wire, a box scale is used to measure the distance between the load bearing cable and the contact wire, the adjustment amount is determined, the dropper is adjusted according to the adjustment amount, the box scale is used to measure whether the adjustment is in place, the adjustment is performed again if not, and the adjustment is repeated until completed. The guide height of the contact net needs to be accurate to millimeter units, so that the adjustment has a large error and is complicated, the overall dropper length adjusting tool is adopted, the dropper is conveniently installed, the height of the contact wire at the installation position of the dropper is conveniently adjusted, the work load of the operating personnel is greatly reduced, the operating time is reduced, and the work efficiency is improved.

[0036] In specific use, the position of the steel wire rope 10 at the one-way lock head 100 is adjusted, the hooks 11 on the one-way lock heads 100 at the two ends of the overall dropper length adjusting tool are hung on the load bearing cable and the contact wire respectively, the position of the sliding block 30 on the adjusting plate 28 is adjusted, the mark of the scale 34 at the position of the sliding block 30 is just the determined adjustment amount, then the sliding block 30 and the steel wire rope 10 are fixed together by the tensioning bolt 33, finally, the steel wire rope 10 below the tensioner 200 is wound by the tightening shaft 15, the sliding block 30 is moved to the top of the sliding rail 29, that is, the mark of the scale 34 is zero, and the position adjustment is completed.

[0037] As Figure 2 and Figure 9As shown, the scale 34 is arranged along the up-down direction of the adjusting plate 28, and the upper end is the zero scale. The slide rail 29 includes two L-shaped guide plates symmetrically arranged on both sides of the scale 34. The slide block 30 is convex and can be clamped in the slide rail 29 to slide up and down along the adjusting plate 28.

[0038] As shown in Figure 10 and Figure 11 The side wall of the lock 31 is provided with a threaded hole along the radial direction. The slide block 30 is provided with a countersunk hole. The lock 31 and the slide block 30 are detachably connected by the connecting bolt 32.

[0039] As shown in Figures 4-7 The tensioner 200 includes a square frame 12. The middle of the frame 12 is horizontally rotatably provided with a tightening shaft 15. One end of the tightening shaft 15 penetrates out of the frame 12 and is coaxially and fixedly connected with a connecting disc 16. The ratchet mechanism includes a ratchet 17 arranged on the side of the connecting disc 16. The frame 12 is rotatably provided with a mounting plate 20 on the side of the ratchet 17 through a rotating shaft 23. The rotating shaft 23 is parallel to the axis of the connecting disc 16. The lower part of the mounting plate 20 is provided with a pawl 21 matched with the ratchet 17. The upper part of the mounting plate 20 is provided with a jacking block 22. The frame 12 is fixedly provided with a mounting block 24 on the side of the jacking block 22. The mounting block 24 is provided with a guide column 25 towards the side of the jacking block 22. The guide column 25 is sleeved with a second spring 26. In the free state, the pawl 21 is pressed on the ratchet 17 under the action of the second spring 26.

[0040] The middle of the tightening shaft 15 is provided with a third through hole 1501. The bottom of the frame 12 is provided with a second through hole 14 penetrating up and down below the third through hole 1501. The upper end of the steel wire rope 10 below the tensioner 200 is connected at the third through hole 1501, and the lower end penetrates out of the second through hole 14 downward.

[0041] In this embodiment, the adjusting block 18 is fixedly arranged on the outer end of the connecting disc 16. The ratchet 17 is arranged on the outer side or the inner side of the connecting disc 16. The guide column 25 is horizontally arranged. The jacking block 22 is provided with a containing groove for containing the second spring 26, so as to prevent the second spring 26 from falling off.

[0042] The top of the frame 12 is provided with a first through hole 13. The lower end of the steel wire rope 10 above the tensioner 200 penetrates through the first through hole 13 and is fixedly connected with the clamping ball 1001. The upper end of the steel wire rope 10 below the tensioner 200 is arranged at the third through hole 1501 through the clamping ball 1001.

[0043] The frame 12 is bolted together by two open-frame opposite; the tightening shaft 15 is bolted together by two half-cylindrical column plane opposite, half-cylindrical column is provided with screw hole 1502 for tightening bolt. The third via hole 1501 is spliced by half-cylindrical hole on two columns.

[0044] As Figure 8 The one-way lock head 100 includes a cylindrical lock body 1, a cylindrical hole 3 is formed in the upper end of the lock body 1, a tapered hole 2 is arranged in the middle of the cylindrical hole 3, the bottom center of the cylindrical hole 3 is connected with the lower side wall of the lock body 1 through the arc-shaped first through hole 4, a pressing column 5 is arranged in the cylindrical hole 3, the second through hole 6 is formed in the middle of the pressing column 5 along the axial direction, a plurality of side holes 7 are uniformly formed in the side wall of the pressing column 5, the side holes 7 are located at the tapered hole 2 and the side holes 7 are provided with the ball 8, the first spring 9 is arranged between the pressing column 5 and the bottom of the cylindrical hole 3, the steel wire rope 10 passes through the second through hole 6 and then passes out from the first through hole 4; the hook 11 is fixed to the lower end of the lock body 1.

[0045] The upper end diameter of the tapered hole 2 is the same as the diameter of the cylindrical hole 3, and the lower end diameter is larger than the diameter of the cylindrical hole 3. There is a section of cylindrical hole 3 above and below the tapered hole 2, and the lower end of the pressing column 5 is located in the cylindrical hole 3 below the tapered hole 2.

[0046] Under the action of the first spring 9, the pressing column 5 moves upward, and the ball 8 moves towards the inside of the side hole 7 under the action of the side wall of the tapered hole 2, so as to realize the compression of the steel wire rope 10 in the second through hole 6 and the locking of the steel wire rope 10. When it is needed to adjust the position of the one-way lock head 100 downward, the pressing column 5 is pressed by hand, the ball 8 is separated from the steel wire rope 10, and the one-way lock head 100 is moved downward along the steel wire rope 10. When it is needed to adjust the position of the one-way lock head 100 upward, the one-way lock head 100 is pushed upward along the steel wire rope 10.

[0047] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A tool for adjusting the length of an integral suspension string, characterized in that: It includes an adjustment mechanism (300) and a tensioner (200) disposed on the adjustment mechanism (300). A wire rope (10) is connected above and below the tensioner (200). The wire rope (10) below the tensioner (200) can be wound around the tensioning shaft (15) of the tensioner (200) under the action of the tensioner (200) and prevented from reversing under the action of the ratchet mechanism. The adjustment mechanism (300) includes a vertically arranged adjustment plate (28) and a scale (34) and a slider (30) arranged on one side of the adjustment plate (28). The adjustment plate (28) is provided with a slide rail (29) corresponding to the slider (30). A cylindrical buckle (31) is vertically fixed on the slider (30). A tightening bolt (33) is threadedly connected to the side wall of the buckle (31). The tightener (200) is fixed at the upper end of the adjustment plate (28). The wire rope (10) below the tightener (200) passes down from the center of the buckle (31) and is connected to the one-way lock head (100). The wire rope (10) above the tightener (200) is connected to the one-way lock head (100).

2. The integral suspension string length adjustment tool according to claim 1, characterized in that: The scale (34) is set up along the vertical direction of the adjustment plate (28). The slide rail (29) includes two L-shaped guide plates symmetrically arranged on both sides of the scale (34). The slider (30) is convex and can slide up and down along the adjustment plate (28) and is locked inside the slide rail (29).

3. The integral suspension string length adjustment tool according to claim 2, characterized in that: The latch (31) has a threaded hole on its sidewall along the radial direction, and the slider (30) has a countersunk hole. The latch (31) and the slider (30) are detachably connected together by a connecting bolt (32).

4. The integral suspension string length adjustment tool according to claim 1, characterized in that: The tightening device (200) includes a square frame (12), a tightening shaft (15) is rotatably and horizontally arranged in the middle of the frame (12), and one end of the tightening shaft (15) passes through the frame (12) and is coaxially fixed to a connecting plate (16); the ratchet mechanism includes a ratchet (17) arranged on the side of the connecting plate (16), and a mounting plate (20) is rotatably arranged on the frame (12) on the side of the ratchet (17) via a rotating shaft (23), the rotating shaft (23) being parallel to the axis of the connecting plate (16); The mounting plate (20) is provided with a pawl (21) that cooperates with the ratchet (17) at the lower part, and a clamping block (22) is provided at the upper part of the mounting plate (20). A mounting block (24) is fixed on one side of the clamping block (22) on the frame (12), and a guide post (25) is provided on the mounting block (24) facing the clamping block (22). A second spring (26) is sleeved on the guide post (25). In the free state, the pawl (21) is pressed against the ratchet (17) under the action of the second spring (26). The tightening shaft (15) has a third through hole (1501) in the middle. The bottom of the frame (12) has a second through hole (14) that runs vertically through the third through hole (1501) directly below it. The upper end of the steel wire rope (10) below the tightener (200) is connected to the third through hole (1501), and the lower end passes through the second through hole (14) downwards. An adjusting block (18) is fixed at one end of the tightening shaft (15). A square or hexagonal prism-shaped adjusting hole (19) is opened on the outer end face of the adjusting block (18).

5. The integral suspension string length adjustment tool according to claim 4, characterized in that: The adjusting block (18) is fixed to the outer end of the connecting plate (16); the ratchet (17) is located on the outer or inner side of the connecting plate (16); the guide post (25) is horizontally arranged; and the clamping block (22) is provided with a receiving groove for accommodating the second spring (26).

6. The integral suspension string length adjustment tool according to claim 5, characterized in that: The frame (12) has a first through hole (13) at the top. The lower end of the steel wire rope (10) above the tightener (200) passes through the first through hole (13) and is fixed to the ball (1001). The upper end of the steel wire rope (10) below the tightener (200) is set at the third through hole (1501) through the ball (1001).

7. The integral suspension string length adjustment tool according to claim 4, characterized in that: The frame (12) is made up of two C-shaped frame openings that are opposite each other and are fixed together by bolts; the tightening shaft (15) is made up of two semi-cylindrical column planes that are opposite each other and are fixed together by bolts.

8. The integral suspension string length adjustment tool according to claim 1, characterized in that: The one-way lock head (100) includes a cylindrical lock body (1), with a cylindrical hole (3) at the upper end of the lock body (1), a conical hole (2) in the middle of the cylindrical hole (3), and the bottom center of the cylindrical hole (3) is connected to the lower side wall of the lock body (1) through an arc-shaped first through hole (4). A pressure post (5) is provided in the cylindrical hole (3), and a second through hole (6) is provided in the middle of the pressure post (5) along the axial direction. Multiple side holes (7) are evenly provided on the side wall of the pressure post (5). The side holes (7) are located at the conical hole (2) and ball bearings (8) are provided in the side holes (7). A first spring (9) is provided between the pressure post (5) and the bottom of the cylindrical hole (3). The wire rope (10) passes through the second through hole (6) and then exits through the first through hole (4). A hook (11) is fixedly connected to the lower end of the lock body (1).

9. The integral suspension string length adjustment tool according to claim 8, characterized in that: The upper diameter of the conical hole (2) is the same as the diameter of the cylindrical hole (3), and the lower diameter is larger than the diameter of the cylindrical hole (3).

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