CN211617489U - Railway contact net insulator replacer - Google Patents

Abstract

The utility model discloses a railway contact net insulator replacer, including the telescoping device, the telescoping device includes the slide box, the inner wall symmetry end of slide box is equipped with slidable push rod and lower push rod respectively, and the one end of two push rods extends the slide box respectively, the terminal surface that the push rod corresponds is the rack structure, meshing has the adaptation gear between the rack, the gear is installed inside the slide box through the pivot is rotatable, one end of pivot is worn out the slide box and is extended outside the slide box, and is fixed with self-lock device; the extending end of the lower push rod is provided with a bottom clamping mechanism; the end that stretches out of push up rod is equipped with oblique cantilever clamping device through the connecting piece, this neotype effect does: be equipped with flexible mode of rack and pinion and self-locking mechanism and promote the cantilever, realize the function of quick replacement insulator, guarantee under high work efficiency's the prerequisite for this device long service life has higher steadiness moreover.

Description

Railway contact net insulator replacer

Technical Field

The utility model relates to a railway contact net insulator replacer belongs to railway contact net technical field.

Background

The overhead contact system is a main framework of the railway electrification engineering, and is a special power transmission line which is erected along a railway line and supplies power to an electric locomotive. The main supporting structural member of the contact net is a cantilever, and comprises a flat cantilever and an inclined cantilever which are respectively used for hanging a catenary and a contact line, and the flat cantilever and the inclined cantilever form a right-angled triangle structure with a contact net support column to be arranged on the upper part of the contact net support column for bearing the weight of the contact net and positioning the contact line, and an electrical insulation part between the contact net and a grounding body is an insulator which is mainly used for bearing the load of the lead and keeping the electrical insulation between the lead and a pole tower.

The insulator is because of exposing outside for a long time, and belongs to the consumable article, needs regular check and maintenance to change, though the arrester equipment is installed at certain distance of contact net every, still can not effectively protect the insulating part of contact net, receives the thunderbolt at the contact net after, and the insulator of cantilever is the easiest to suffer the thunder and lightning breakdown and cause the contact net short circuit, takes place the damaged incident of insulator, seriously influences the normal operation order of railway.

Under the influence of railway travelling, the problem can not be solved by a special track running machine, the special track running machine needs to be replaced manually, and the operation time is urgent. The cantilever insulator is changed manually, the difficulty is the oblique cantilever most, because the contact net dead weight that it bore exceeds 100kg to it is a time-consuming, hard work to change the insulator on the contact net pillar pole that erects the contact net line to current instrument, is unfavorable for on-the-spot contact net rapid repair operation.

Disclosure of Invention

An object of the utility model is to provide a railway contact net insulator replacer has solved the insulator of changing the railway contact net and has changed the problem that wastes time and energy.

The utility model adopts the technical scheme as follows: a railway contact net insulator replacer comprises a telescopic device, wherein the telescopic device comprises a sliding box, the upper end and the lower end of the inner wall of the sliding box are respectively provided with a slidable upper push rod and a slidable lower push rod through a sliding groove and sliding rail mechanism, one end of each push rod extends out of the sliding box, the corresponding end surface in each push rod and sliding box is of a rack structure, adaptive gears are meshed between the racks, the gears can be rotatably fixed in the sliding box through rotating shafts, one end of each rotating shaft penetrates out of the sliding box and extends out of the sliding box, and is fixedly provided with a self-locking device and a rotating handle, each self-locking device comprises a ratchet wheel, each ratchet wheel is fixed on each rotating shaft, a pawl which is rotatably matched with the ratchet wheel in a meshing manner is fixed at the end, close to the ratchet wheel, of the sliding box, the rotating handle is rotated to drive the racks to, and the pawl is meshed with the ratchet wheel to prevent the ratchet wheel from rotating reversely; the lower end of one side of the side plate is hinged with the lower push rod through a hinge piece, one end of a symmetrical threaded rod is fixed at the upper end of the other side of the side plate, one end of a movable clamping plate is sleeved on the threaded rod, an opening of an arc structure is formed in the other end of the clamping plate and can be clamped on the other threaded rod, a self-locking nut matched with the threaded rod is meshed at the other end of the threaded rod, and the clamping plate and the side plate clamping support achieve a fastening effect through the self-locking bolt; the utility model discloses a locking device for inclined cantilever, including upper push rod, oblique cantilever clamping device, fixed slot, clamping ear, fixed slot outside end, the threaded part meshing of bolt has the lock nut of adaptation, and the fixed slot other end articulates there is the activity groove rather than the adaptation, the clamping ear is installed to the side of the expansion end in activity groove, press from both sides tight ear and open the open slot that has with the lock bolt adaptation, fixed slot and activity groove cup joint on oblique cantilever, rotate the lock bolt and be located the open slot, screw up lock nut, realize the clamp of oblique cantilever fixed.

Further, the telescopic device can be replaced by any one of a hydraulic cylinder telescopic device, an electric telescopic rod and a lead screw sleeve telescopic device, if the hydraulic cylinder telescopic device or the electric telescopic rod is replaced, the bottom of the hydraulic cylinder telescopic device or the electric telescopic rod is hinged with a side plate of the bottom clamping device, and the top of the hydraulic cylinder telescopic device or the electric telescopic rod is fixedly connected with the inclined wrist arm clamping device; if the screw rod sleeve expansion device is replaced by the screw rod sleeve expansion device, the screw rod sleeve expansion device comprises a sleeve, the inside of the sleeve is of a threaded structure, screw threads are meshed inside two ends of the sleeve, the screw rods are opposite in screwing direction, one end part of each screw rod is hinged to a side plate of the bottom clamping device, the other end part of each screw rod is fixedly connected with the inclined cantilever clamping device, and the expansion of the screw rods can be realized by rotating the sleeve.

Furthermore, a blocking piece is fixed at the end, meshed with the self-locking nut, of the threaded rod, and the self-locking nut is prevented from falling off.

Furthermore, the push rod is fixed with a limiting sheet at the inner end of the sliding box to prevent the rack from sliding out of the gear.

Furthermore, a rubber anti-slip sleeve is fixed on the rotating handle.

The utility model has the advantages that:

the utility model discloses only need rotate the bar in certain space internal rotation, can reach the elasticity performance, reduce the operation degree of difficulty and operation dynamics, labour saving and time saving.

The utility model discloses self-lock device with ratchet pawl can guarantee rack and pinion after flexible, has the performance of location auto-lock.

The utility model discloses a gear and gear driven form realizes the flexible performance of this device for this device is longe-lived, and work is steady, and the reliability is high.

The clamping mechanism of the utility model has the advantages of integration, convenient and fast operation and higher tightness; the insulator quick replacement device can realize single quick replacement of the insulator under the condition of ensuring safety, and greatly improves the on-site contact net emergency repair operation efficiency.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic view of the novel three-dimensional structure.

Fig. 3 is a schematic view of the novel three-dimensional partial structure.

Fig. 4 is a schematic perspective view of the novel clamping device for the inclined cantilever.

Fig. 5 is a schematic view of a partial structure of the novel front view section.

Fig. 6 is a schematic perspective view of the novel base clamping device.

In the figure: the device comprises a telescopic device 1, a sliding box 1-1, a sliding groove 1-2, a sliding rail 1-3, an upper push rod 1-4, a lower push rod 1-5, a gear 1-6, a rotating shaft 1-7, a limiting piece 1-8, a self-locking device 2, a ratchet 2-1, a mounting lug 2-2, a pawl 2-3, a bottom clamping mechanism 3, a side plate 3-1, an articulated piece 3-2, a threaded rod 3-3, a self-locking nut 3-4, a clamping plate 3-5, a blocking piece 3-6, an oblique wrist arm clamping device 4, a fixed groove 4-1, a movable groove 4-2, a hinged lug 4-3, a locking bolt 4-4, a locking nut 4-5, a clamping lug 4-6, a support column 5, an insulator 6, an oblique wrist arm 7, a connecting piece 8, a fastening groove 8-1, a connecting plate 8-2 and a rotating handle 9.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings, which are only used for illustrating the technical solutions of the present invention and are not limited.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

Example 1

As shown in fig. 1-6, the insulator changer for a railway contact system comprises a telescopic device 1, wherein the telescopic device 1 comprises a slide box 1-1, the upper end surface and the lower end surface of the inner wall of the slide box 1-1 are respectively provided with a chute 1-2, the chute 1-2 is respectively matched with an upper push rod 1-4 in the slide box 1-1 and a slide rail 1-3 welded and fixed on a lower push rod 1-5, one end of each push rod extends out of the slide box 1-1, the corresponding end surfaces of the upper push rod 1-4 and the lower push rod 1-5 of the slide box 1-1 are in a rack structure, an adaptive gear 1-6 is engaged between the two racks, the gear 1-6 is welded and fixed on a rotating shaft 1-7, the rotating shaft 1-7 is rotatably fixed at the left end and the right end of the slide box 1-1 through a bearing fixed on the slide box 1-1, one end of the rotating shaft 1-7 penetrates through the sliding box and extends out of the sliding box 1-1, and is fixedly provided with a self-locking device 2 for preventing the gear rack structure from moving per se, the self-locking device 2 comprises a ratchet wheel 2-1, the ratchet wheel 2-1 is fixedly welded on the rotating shaft 1-7, an installation lug 2-2 vertical to the length direction of the sliding box 1-1 is fixedly welded on the sliding box 1-1 at the inner side end of the ratchet wheel 2-1, a pawl 2-3 which can be rotatably meshed and matched with the ratchet wheel 2-1 is installed on the installation lug 2-2 through a pin shaft, a rotating handle 9 is fixedly arranged on the rotating shaft 1-7 at the outer side end of the ratchet wheel 2-1 through a bolt, the rotating handle 9 is rotated, the rotating shaft 2-3 drives the ratchet wheel 2-1 and the gear 1-6 to rotate, so that the gear 1-6 drives the upper push rod 1-4 and the lower, the telescopic performance is realized, and the ratchet 2-1 is meshed with the pawl 2-3 to have a self-locking function; the lower end of the lower push rod 1-5 is hinged with a bottom clamping mechanism 3, the bottom clamping mechanism 3 comprises a side plate 3-1, the lower end of one side of the side plate 3-1 is welded with a hinged groove of a hinged piece 3-2, the lower push rod 1-5 is welded with a hinged joint, the hinged groove and the hinged joint are hinged through a pin shaft, symmetrical threaded rods 3-3 are fixed at the upper end of the other side of the side plate 3-1, one end of each threaded rod 3-3 is fixed on the side plate 3-1 through two self-locking nuts 3-4 distributed at the two ends of the side plate 3-1 and meshed with the self-locking nuts 3-4, one end of a movable clamping plate 3-5 is sleeved on the threaded rod 3-3, the other end of the clamping plate 3-5 is provided with an opening of an arc structure, and, the other end of the threaded rod 3-3 is engaged with a self-locking nut 3-4 which is matched with the threaded rod, so that the clamping plate 3-5 and the side plate 3-1 clamp the strut 5 through the self-locking bolt to achieve a fastening effect; an inclined cantilever clamping device 4 is fixed at the extending end of the upper push rod 1-4 through a connecting piece 8, the connecting piece comprises a fastening groove 8-1, the fastening groove 8-1 is fixedly welded at the lower end of the upper push rod 1-4, the fastening groove 8-1 is fixedly connected with a connecting plate 8-2 with a T-shaped structure through at least two fastening bolts, the inclined cantilever clamping device 4 is fixed at the lower end of the connecting plate 8-2, the inclined cantilever clamping device 4 comprises a fixing groove 4-1, a hinge lug 4-3 is fixedly welded at one outer side end of the fixing groove 4-1, the hinge lug 4-3 is connected with a rotatable locking bolt 4-4 through a pin shaft, the pin shaft is fixedly welded with the locking bolt 4-4 vertically, and a screw thread part of the locking bolt 4-4 is meshed with a nut 4-5 which is adaptive to the screw shaft, the other end of the fixed groove 4-1 is hinged with a movable groove 4-2 matched with the fixed groove through a pin shaft, a clamping lug 4-6 is welded and fixed at the side end of the movable groove 4-2, an open groove matched with the fixed bolt is formed in the clamping lug 4-6, the fixed groove 4-1 and the movable groove 4-2 are sleeved on the oblique cantilever, the locking bolt 4-4 is rotated to be located in the open groove, and the locking nut 4-5 is screwed down to clamp and fix the oblique cantilever 7.

In the utility model, the stop piece 3-6 is fixed at the end of the threaded rod 3-3 which is engaged with the self-locking nut 3-4 in order to prevent the self-locking nut 3-4 from falling off.

In the utility model, the slide prevention is considered, and the clamping stability is improved, so that the side plates 3-1, the clamping plates 3-5, the fixed grooves and the movable grooves 4-4 are respectively fixed with elastic rubber layer structures matched with the side plates through screws.

In the utility model, the rack is prevented from sliding out of the gear 1-6, so the push rod is fixed with a limiting piece 1-8 at the inner end of the sliding box 1-1.

Example 2

The telescopic device 1 described in embodiment 1 may be replaced with one of a hydraulic cylinder telescopic device, an electric telescopic rod, and a screw rod and sleeve telescopic device.

If the hydraulic cylinder telescopic device or the electric telescopic rod is replaced by the hydraulic cylinder telescopic device or the electric telescopic rod, the bottom of the hydraulic cylinder telescopic device or the electric telescopic rod is hinged with a side plate 3-1 of the bottom clamping device 3, and the top of the hydraulic cylinder telescopic device or the electric telescopic rod is fixedly connected with a mounting groove 4-1 of the inclined cantilever clamping device 4 through a fastening bolt; if the screw rod sleeve expansion device is replaced by the screw rod sleeve expansion device, the screw rod sleeve expansion device comprises a sleeve, the inside of the sleeve is of a threaded structure, screw rods with opposite screw threads are meshed inside two ends of the sleeve, one end of each screw rod is hinged with a side plate 3-1 of the bottom clamping device 3, the other end of each screw rod is connected with a fixing groove 4-1 of the inclined wrist arm clamping device 4 through a connecting piece 8, and the expansion of the screw rods can be realized by rotating the sleeve.

The utility model discloses a theory of operation and application method:

fixing a supporting column 5 clamping device and an oblique wrist arm clamping device 4 on the supporting column 5 and the oblique wrist arm 7 respectively at proper positions; rotating the pawl 2-3 to the front side of the mounting lug 2-2, rotating the rotating handle 2-4 clockwise, moving the push rod to the two sides of the sliding box 1-1 to push the inclined cantilever 7 to move upwards, and stopping rotating the rotating handle 2-4 after the inclined cantilever 7 is separated from the insulator 6; the old insulator 6 is detached by using a tool, and then a new insulator 6 is installed; the device is taken down, the pawl 2-3 is rotated at the rear side of the mounting lug 2-2, and the rotating handle 2-4 is rotated anticlockwise, so that the push rod is contracted.

Although the present invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that various changes and modifications can be made in the embodiments described above, or equivalent changes and modifications can be made to some of the technical features of the embodiments described above, and any changes, equivalents, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. The utility model provides a railway contact net insulator replacer, includes telescoping device, characterized by: the telescopic device comprises a sliding box, an upper push rod and a lower push rod which can slide are arranged at the symmetrical ends of the inner wall of the sliding box, one ends of the two push rods respectively extend out of the sliding box, the corresponding end surfaces in the push rod sliding box are of a rack structure, an adaptive gear is meshed between the racks, the gear is rotatably arranged in the sliding box through a rotating shaft, one end of the rotating shaft penetrates out of the sliding box and extends out of the sliding box, and a self-locking device and a rotating handle are arranged; the extending end of the lower push rod is provided with a bottom clamping mechanism; and the extending end of the upper push rod is provided with an inclined cantilever clamping device through a connecting piece.

2. The insulator changer for the railway contact network according to claim 1, wherein: the telescopic device can be replaced by any one of a hydraulic cylinder telescopic device, an electric telescopic rod and a lead screw sleeve telescopic device, if the hydraulic cylinder telescopic device or the electric telescopic rod is replaced, the bottom of the hydraulic cylinder telescopic device or the electric telescopic rod is hinged with a bottom clamping device, and the top of the hydraulic cylinder telescopic device or the electric telescopic rod is fixedly connected with an inclined cantilever clamping device through a fastening bolt; if the screw rod sleeve expansion device is replaced by the screw rod sleeve expansion device, the screw rod sleeve expansion device comprises a sleeve, the inside of the sleeve is of a threaded structure, screw threads are meshed inside two ends of the sleeve, the screw rods are opposite in screwing direction, one end part of each screw rod is hinged to the bottom clamping device, the other end part of each screw rod is fixedly connected with the inclined cantilever clamping device, and the screw rods can be expanded by rotating the sleeve.

3. The insulator changer for the railway contact network according to claim 1, wherein: the self-locking device comprises a ratchet wheel which is fixed on the rotating shaft, and a pawl which is rotatably matched with the ratchet wheel in a meshed mode is arranged at the end, close to the ratchet wheel, of the sliding box.

4. The insulator changer for the railway contact network according to claim 1, wherein: bottom clamping mechanism includes the curb plate, curb plate one side lower extreme passes through the articulated elements and is connected with the lower push rod is articulated, the one end of the threaded rod of curb plate opposite side upper end fixed symmetry, wherein, has cup jointed the one end of mobilizable clamp plate on the threaded rod, but the opening that has the arc structure is opened to the other end of clamp plate, and on another threaded rod of opening joint, the other end meshing of threaded rod has the auto-lock nut of adaptation.

5. The insulator changer for the railway contact network according to claim 1, wherein: the oblique cantilever clamping device comprises a fixing groove, a rotatable locking bolt is arranged at the end of one outer side of the fixing groove, a locking nut matched with the threaded part of the bolt is meshed with the threaded part of the bolt, the other end of the fixing groove is hinged with a movable groove matched with the fixing groove, a clamping lug is arranged at the side end of the movable groove, and an open groove matched with the locking bolt is formed in the clamping lug.

6. The insulator changer for the railway contact net according to claim 1 or 3, wherein: the rotating handle is fixed with a rubber anti-slip sleeve.

7. The insulator changer for the railway contact network according to claim 4, wherein: and the threaded rod is engaged with the self-locking nut end and is fixedly provided with a baffle.

8. The insulator changer for the railway contact network according to claim 1, wherein: the push rod is provided with a limiting piece at the inner end of the sliding box.

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