CN112607499B

CN112607499B - Rotating shaft with braking function and pay-off device with rotating shaft

Info

Publication number: CN112607499B
Application number: CN202110014199.3A
Authority: CN
Inventors: 刘珏伶; 黄浩鹏; 龚伟
Original assignee: Daqing Power Supply Co Of State Grid Heilongjiang Electric Power Co ltd; State Grid Corp of China SGCC
Current assignee: Daqing Power Supply Co Of State Grid Heilongjiang Electric Power Co ltd; State Grid Corp of China SGCC
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2022-11-22
Anticipated expiration: 2041-01-06
Also published as: CN112607499A

Abstract

The invention discloses a rotating shaft with a braking function and a pay-off device with the rotating shaft, wherein the pay-off device comprises a support frame and a rotating shaft with a braking function; the supporting frame is provided with two supporting slide rails which are arranged at intervals; the front end of the supporting slide rail is connected with a limiting bracket, the rear end of the supporting slide rail is connected with an entering bracket, and the top end surface of the entering bracket is arranged in an inclined plane; two spacing plates which are arranged at intervals are also arranged on the supporting frame; the support frame is also provided with a brake driving device, the output end of the brake driving device is connected with a brake piece, and the brake piece comprises a brake rod. According to the paying-off device, the cable reel can easily enter the area between the first supporting roller and the second supporting roller through the arrangement of the supporting guide rail and the entering support and the matching of the track sliding groove opening and the limiting sliding head, so that the cable reel can be effectively supported and the rotation of the cable reel can be guaranteed, the rotating gravity center of the cable reel can be reduced, and the paying-off stability can be improved.

Description

Rotating shaft with braking function and paying-off device with rotating shaft

Technical Field

The invention belongs to the technical field of cable construction, and particularly relates to a rotating shaft with a braking function and a pay-off device with the rotating shaft.

Background

Cables are materials necessary for the construction of power lines and are usually wound on cable reels to be fed in coils to the construction site. For the convenience of paying off the cable, a support shaft penetrating cable roll (the cable is wound on a cable reel) is adopted to sleeve the cable roll on the support shaft, the support shaft is placed on the support frame, and the support shaft or the support frame is lifted up by a jack or other driving devices to be coiled with the suspended cable, so that the cable can be paid off. However, the conventional supporting device (supporting frame and supporting shaft) has the following problems:

1. can be provided with the cable drum that is used for running through the back shaft on the cable drum usually and support the through-hole, in order to run through the back shaft, the external diameter of back shaft many can be less than the cable drum and support the through-hole, so, under the dead weight effect, the cable drum then can not be in coaxial state with the back shaft, when the unwrapping wire cable, the eccentric shaft rotation of relative back shaft can take place for the cable drum under the exogenic action, so, very easily arouse back shaft or cable drum to take place to rock or the problem of beating, and then the stability of cable unwrapping will be influenced certainly.

2. The support frame is not provided with the pivoted structure of ability braking cable drum, so, under the exogenic action, too much cable is played to the cable drum very likely, like this, can consume extra manpower and time and handle it (the wraparound or abandon), will influence the efficiency nature of cable unwrapping wire certainly.

3. When the cable coil is suspended in the air through a jack or other driving devices, the cable coil is easy to shake, and further safety risks such as scratch and the like are caused; on the other hand, too high a center of the cable roll may affect the stability of the paying-off

4. Because the cable is stored and transported in the mode of coil stock mostly, when unwrapping wire like this, the cable is the curved shape mostly, and this can influence efficiency and quality of operator to cable subsequent processing extremely.

Disclosure of Invention

Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: the rotating center of gravity of the cable coil is reduced, shaking and shaking of the cable coil are reduced, excessive pulling of the cable is prevented, and the bending degree of the cable is improved.

In order to solve the technical problem, the invention adopts the following technical scheme:

the rotating shaft with the braking function comprises a shaft body and two end covers which can be respectively in sliding fit with two end parts of the shaft body, wherein two end parts of the shaft body are respectively provided with a propping assembly;

the pressing component comprises a plurality of sliding rod moving grooves which are axially formed along the shaft body, the sliding rod moving grooves penetrate through the end part of the shaft body, the plurality of sliding rod moving grooves are uniformly distributed along the circumferential direction of the shaft body, the groove bottom of each sliding rod moving groove is connected with a sliding rod which can axially slide in the sliding rod moving groove along the shaft body through a sliding rod elastic part, at least one sliding groove opening is formed in each sliding rod, the groove bottom of each sliding groove opening is arranged in an inclined plane, and the groove depth of each sliding groove opening gradually becomes shallow towards an area close to the end part of the shaft body;

the abutting assembly further comprises abutting port groups which are arranged on the shaft body and correspond to the sliding rod movable grooves, each abutting port group comprises an abutting port which corresponds to the sliding groove opening and is communicated with the sliding rod movable groove, the abutting ports penetrate through the outer surface of the shaft body, the abutting ports are small in opening and large in inner cavity, sliding blocks capable of moving along the radial direction of the shaft body are arranged in the abutting ports, and the bottom end portions of the sliding blocks can be matched with the sliding groove openings;

the end cover comprises an end cover and a locking part, wherein the end cover comprises a shaft body, a plurality of sliding rod movable grooves and a plurality of abutting rods, the inner side end of the end cover is provided with a plurality of abutting rods which can be respectively matched with the sliding rod movable grooves and can act on the sliding rods, the end cover is provided with a plurality of end cover sliding grooves along the axial direction of the shaft body, the end part of the shaft body is provided with a locking hole corresponding to the end cover sliding grooves, and the locking part can penetrate through the end cover sliding grooves and is in threaded fit with the locking hole;

not hard up retaining member and slip end cover, when the retaining member was located that one end that the end cover spout is close to the slider, the slide bar elastic component acted on the slide bar for: the deep groove area of the sliding groove opening is over against the bottom end of the sliding block, and the sliding block can be accommodated in the abutting through opening; when the retaining member is located that one end that the slider was kept away from to the end cover spout, the butt pole acted on the slide bar for: the slide bar overcomes the effect of slide bar elastic component and takes place axial displacement, and the shallow slot region of slide groove mouth just acts on the slider to the bottom of slider, makes the top portion of slider can evaginate in the butt opening.

Furthermore, an end cover limiting ring groove which is coaxial with the end cover is formed in the end cover, and a plurality of braking tooth grooves which are arranged in an annular mode are formed in the end cover limiting ring groove.

Furthermore, an outward protruding limiting sliding head is arranged at the outer side end of the end cover, the limiting sliding head and the end cover are coaxially arranged, and the limiting sliding head is located in an area surrounded by the plurality of braking tooth grooves.

Furtherly, the slider has and can pass butt opening open-ended slider supports tight section and links up in the slider support tight section bottom and can with the spacing section of butt opening inner chamber complex slider, the bottom end face of the spacing section of slider can with the tank bottom surface face contact of sliding notch.

Further, still set up on the axis body can with the mounting hole of butt opening intercommunication, install in the mounting hole and act on the slider elastic component of the spacing section of slider.

Furthermore, a sliding rod limiting bulge is arranged at the bottom end of the sliding rod;

the shaft body is provided with a slide bar limiting groove which can be matched with the slide bar limiting bulge.

A paying-off device comprises a support frame and a rotating shaft with a braking function, wherein the rotating shaft is as described in any one of the third item to the sixth item;

the supporting frame is provided with two supporting slide rails which are arranged at intervals, and a first supporting roller is arranged on each supporting slide rail in a rolling manner;

the front end of the supporting slide rail is connected with a limiting bracket, and a second supporting roller is arranged on the limiting bracket in a rolling manner;

the rear end of the supporting slide rail is connected with an entering support, the top end surface of the entering support is arranged in an inclined plane, and the height of the entering support is gradually reduced towards the direction far away from the supporting slide rail;

the support frame is also provided with two limiting plates which are arranged at intervals, the two limiting plates are respectively positioned at the outer sides of the two support slide rails, the limiting plates are provided with track chute openings which can be matched with the limiting slide heads in a placement manner, and the limiting plates are also provided with abdicating through openings which are communicated with the track chute openings and can abdicate the end cover limiting ring grooves;

the support frame is further provided with a brake driving device, the output end of the brake driving device is connected with a brake piece, and the brake piece comprises a brake rod which can penetrate through the yielding port and is arranged in the brake tooth groove.

Furthermore, the braking part also comprises a limiting cylinder which can be in rolling fit with the limiting sliding head;

the brake rods are arranged on two sides of the outer surface of the limiting cylinder.

Furthermore, the support frame is also provided with two support slide bars, and the support slide bars are arranged in the area between the support slide rails and the limiting plate which are positioned on the same side;

the two supporting sliding rods can be respectively matched with the two end parts of the shaft body.

Furthermore, the front end of the support frame is provided with a first guide roller and a second guide roller in sequence along the cable conveying direction.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the rotating shaft with the braking function, the sliding blocks capable of moving in the radial direction are arranged, so that the shaft body can be easily matched with the cable reel in a penetrating mode during assembly, and the shaft body can be tightly connected with the cable reel in a propping mode during rotation or movement of the cable reel, and therefore shaking and shaking of the cable reel can be effectively reduced. The sliding connection of the end cover and the shaft body and the matching of the locking piece and the end cover sliding groove can facilitate the adjustment of the relative position of the end cover and the shaft body so as to change the relative position of the sliding rod and the sliding block and facilitate the locking of the position state.

2. According to the rotating shaft with the braking function, when the shaft body and the cable reel are in the linkage state, only the shaft body needs to be braked, the cable reel can be effectively and accurately braked, and therefore the problem of excessive pulling can be prevented.

3. According to the paying-off device, the cable reel can easily enter the area between the first supporting roller and the second supporting roller through the arrangement of the supporting guide rail and the entering support and the matching of the track sliding groove opening and the limiting sliding head, so that the cable reel can be effectively supported and the rotation of the cable reel can be guaranteed, the rotating gravity center of the cable reel can be reduced, and the paying-off stability can be improved. Wherein, the axis body both ends and the cooperation that supports the slide bar can further improve the stability of unwrapping wire work.

4. According to the pay-off device, the brake driving device and the brake part are arranged, when the rotating shaft rotates, the rotation of the rotating shaft can be limited through the matching of the limiting cylinder and the limiting sliding head, and the rotating stability of the rotating shaft can be effectively improved. When the rotating shaft needs to be braked, the rotating shaft can be braked by moving the brake part until the brake rod enters the brake tooth groove, and then the cable reel is braked.

5. According to the pay-off device, the curvature of the cable can be corrected through the arrangement of the first guide roller and the second guide roller. In addition, through the setting of altitude mixture control subassembly, the high position of adjustable second guide roller, so, can correct according to the crookedness of cable.

Drawings

FIG. 1 is a schematic structural view of a specific embodiment of a rotating shaft with a braking function according to the present invention;

FIG. 2 is a cross-sectional view of an embodiment of a spindle having a braking function according to the present invention;

FIG. 3 is a schematic structural view of an embodiment of a rotating shaft with a braking function according to the present invention when a slider protrudes outward;

FIG. 4 is a schematic structural diagram of a specific embodiment of a slide bar limiting protrusion and a slide bar limiting groove in a rotating shaft with a braking function according to the present invention;

fig. 5 is a schematic structural view of an embodiment of a cable reel to which the rotating shaft with a braking function is applied according to the invention;

FIG. 6 is a schematic structural view of an embodiment of a rotating shaft with a braking function according to the present invention when the rotating shaft abuts against a cable reel;

FIG. 7 is a schematic structural diagram of an embodiment of a payoff device according to the present invention;

FIG. 8 is a schematic structural diagram of one embodiment of a braking member in the paying-off machine according to the invention;

FIG. 9 is a schematic structural view of one embodiment of the braking member and the braking gullet in the paying out device according to the present invention;

FIG. 10 is a schematic structural view of a brake component and a limiting slider in the paying-off device according to the present invention when engaged;

FIG. 11 is a schematic structural view of a brake part and a brake tooth groove in the paying-off device according to the invention when being matched;

FIG. 12 is a schematic structural view of one embodiment of a supporting slide bar in a pay-off device according to the present invention;

FIG. 13 is a schematic structural diagram of an embodiment of a first guide roller and a second guide roller in the paying-off device according to the present invention;

fig. 14 is a schematic structural diagram of the supporting slide rail and the cable reel in the paying-off device according to the present invention.

Wherein, the part names corresponding to the reference numbers are as follows: 1. the device comprises a shaft body, 2, a slide rod movable groove, 3, an end cover, 4, a slide rod elastic part, 5, a slide rod, 6, a butt through hole, 7, a slide groove opening, 8, a butt rod, 9, a slide block, 10, a limiting cylinder, 11, a braking tooth groove, 12, an end cover sliding groove, 13, a locking hole, 14, a locking part, 15, an end cover limiting ring groove, 16, an end cover locking groove, 17, a limiting sliding head, 18, a slide block abutting section, 19, a slide block limiting section, 20, a mounting hole, 21, a slide block elastic part, 22, a slide rod limiting bulge, 23, a slide rod limiting groove, 24, a support frame, 25, a support slide rail, 26, a first support roller, 27, a limiting support frame, 28, a second support roller, 29, an entering support frame, 30, a limiting plate, 31, a support slide rod, 32 and a track sliding groove opening, 33, a yielding through hole 34, a brake driving device 35, a brake piece 36, a brake lever 37, a first guide roller 38, a second guide roller 39, a support seat 40, an adjusting screw rod 41, a connection seat 42, a support rod 43, a support accommodating groove 44, a movable groove reducing section 45, a slide rod reducing section 46, a cable coil 47, a cable coil support through hole 48, a cable 49, a brake piece guide sliding rail 50, a brake piece guide sliding block 51, a coil wheel 52, a detachable connection structure 53, a limiting plate ball 54, a limiting bent section 55, a sliding block elastic layer 56, a limiting hole 57, a yielding bevel edge 58, a rotating shaft 59, a matching area with the support sliding rod 60, a matching area with the support sliding rail 61 and a matching area with the limiting plate 61.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In the specific implementation:

example 1

As shown in fig. 1 to 6, the rotating shaft with a braking function includes a shaft body 1 and two end covers 3 capable of being respectively in sliding fit with two end portions of the shaft body 1, wherein two end portions of the shaft body 1 are provided with a pressing component;

the abutting component comprises a plurality of sliding rod movable grooves 2 which are axially arranged along the shaft body, the sliding rod movable grooves 2 penetrate through the end part of the shaft body 1, the sliding rod movable grooves 2 are uniformly distributed along the circumferential direction of the shaft body 1, the groove bottom of each sliding rod movable groove 2 is connected with a sliding rod 5 which can axially slide in the sliding rod movable groove 2 along the shaft body 1 through a sliding rod elastic piece 4, at least one sliding groove opening 7 is formed in the sliding rod 5, the groove bottom of each sliding groove opening 7 is arranged in an inclined plane, and the groove depth of each sliding groove opening 7 gradually becomes shallow towards the area close to the end part of the shaft body 2;

the abutting assembly further comprises abutting port groups which are arranged on the shaft body 1 and correspond to the sliding rod movable grooves 2, each abutting port group comprises an abutting port 6 which corresponds to the sliding groove opening 7 and is communicated with the sliding rod movable groove 2, the abutting ports 6 penetrate through the outer surface of the shaft body 1, the abutting ports 6 are small in opening and large in inner cavity, a sliding block 9 capable of moving along the shaft body 1 in the radial direction is arranged in the abutting ports 6, and the bottom end portion of the sliding block 9 can be matched with the sliding groove opening 7;

the inner side end of the end cover 3 is provided with a plurality of abutting rods 8 which can be respectively placed into and matched with the plurality of slide rod movable grooves 2 and can act on the slide rods 5, the end cover 3 is provided with a plurality of end cover sliding grooves 12 along the axial direction of the shaft body 1, the end part of the shaft body 1 is provided with locking holes 13 corresponding to the end cover sliding grooves 12, and the end cover comprises locking pieces 14 which can penetrate through the end cover sliding grooves 12 and are in threaded fit with the locking holes 13;

loosening the locking member 14 and sliding the end cap 3, when the locking member 14 is located at the end of the end cap slide channel 12 close to the slide 9, the slide rod elastic member 4 acts on the slide rod 5 so that: the deep groove area of the sliding groove opening 7 is over against the bottom end of the sliding block 9, and the sliding block 9 can be accommodated in the abutting through opening 6; when the retaining member is located that end of end cover spout 12 away from slider 9, butt pole 8 acts on slide bar 5 for: the slide rod 5 moves axially against the action of the slide rod elastic part 4, the shallow groove area of the slide notch 7 is over against the bottom end of the slide block 9 and acts on the slide block 9, so that the top end part of the slide block 9 can protrude out of the butt through opening 6.

When the cable drum supporting device is applied, the cable drum supporting device needs to penetrate through the cable drum supporting through hole of the cable drum, and then the subsequent supporting procedure is carried out. For this purpose, the locking member 14 is loosened, and the two end covers 3 are slid (or under the action of the slide rod elastic member 4) so that the two end covers 3 are respectively located at positions away from the slide block 9, and at this time, the abutment rod 8 can give way to the axial movement of the slide rod 5. Slide bar elastic component 4 acts on slide bar 5 for, the deep troughed area of sliding notch 7 is just to the bottom of slider 9, and available external force accomodates slider 9 in butt through opening 6. Then, the shaft body 1 and the two end covers 3 penetrate through the cable reel supporting through hole, the relative positions of the shaft body 1 and the cable reel are adjusted to enable the shaft body 1 and the cable reel to be approximately in a coaxial position state, the two end covers 3 are slid again to enable the two end covers 3 to respectively move towards the direction close to the sliding block 9, in the process, the abutting rod 8 can gradually act on the sliding rod 5, the sliding rod 5 is gradually compressed, accordingly, the sliding rod elastic piece 4 moves axially, the sliding block 9 can gradually act on the sliding block 9 in the shallow groove area of the sliding groove opening 7, the sliding block 9 moves outwards along the radial direction of the shaft body 1, and when the top end portion of each sliding block 9 on the shaft body 1 abuts against the inner wall of the cable reel supporting through hole, the position of the end cover 3 relative to the shaft body 1 can be locked through the locking piece 14.

In this embodiment, but through the setting of radial movement's slider 9, both can easily realize the cooperation of running through of axis body and cable drum when the assembly, can realize supporting tight connection of axis body and cable drum again when the cable reel rotates or removes, so, can effectively reduce rocking and the shake of cable drum. Through the sliding connection between the end cover 3 and the shaft body 1 and the matching between the locking piece 14 and the end cover sliding groove 12, the relative position between the end cover and the shaft body can be conveniently adjusted to change the relative position between the sliding rod and the sliding block, and the position state can be conveniently locked.

In addition, when the shaft body is tightly connected with the cable reel, the shaft body and the cable reel are in a linkage state, so that when the shaft body 1 is braked, the cable reel can be effectively braked, and the problem of excessive pulling is prevented.

For structural optimization, when the end cover 3 is slidably connected to the shaft body 1, the end cover 3 should be in a state of being equal in diameter to the shaft body 1, that is, the maximum outer diameter of the shaft body 1 should be equal to the maximum outer diameter of the end cover 3. For this purpose, the outer surface of the end cap 3 is provided with an end cap locking recess 16 for receiving the locking member 14 to prevent the locking member 14 from protruding beyond the end cap 3.

In order to improve the stability of the connection between the end cover 3 and the shaft body 1, four end cover sliding grooves 12 can be arranged, the four end cover sliding grooves 12 can be uniformly distributed along the end cover 3, and correspondingly, four locking holes 13 and four locking pieces 14 are also arranged.

For improving the tight power of propping of slider 9 to the cable drum, prop tight subassembly and can be provided with four slide bars 5, four slide bars 5 along 1 circumference evenly distributed of axis body, can be provided with two sliding groove mouths 7 on each slide bar 5.

In order to improve the stability of the sliding block 9 in abutting against the cable reel, the sliding notches 7 on the two adjacent sliding rods 5 are arranged in a staggered mode in the axial direction of the shaft body 1.

In order to improve the stability of the sliding block 9 against the cable reel, the top end of the sliding block 9 may be provided with a sliding block elastic layer 55.

The slide rod elastic member 4 may be a compression spring.

In order to lock the position of the locking member 14 on the end cap 3, the locking member 14 can be a screw, and a screwdriver or other tools can be used for assisting in rotating the screw.

In order to avoid excessive movement of the slide 5 under the support of the slide elastic element 4, the slide active slot 2 is provided with a reduced radial length of the shaft body 1, and correspondingly, the slide 5 has a slide reduced section 45 that can cooperate with the reduced section 44. The sliding rod 5 can be axially limited by the arrangement of the movable groove reducing section 44.

Example 2

This example is further defined on the basis of example 1 as follows: an end cover limiting ring groove 15 which is coaxial with the end cover 3 is formed in the end cover 3, and a plurality of braking tooth grooves 11 which are arranged in an annular mode are formed in the end cover limiting ring groove 15.

In this embodiment, the setting of braking tooth's socket 11 can form unevenness's structure in the spacing annular 15 of end cover, so, the axis body 1 is braked through putting into the complex mode more easily. In addition, the design of the annular arrangement of the braking teeth grooves 11 facilitates braking of the shaft body 1 regardless of the circumferential state of the shaft body 1.

Example 3

This example is further defined on the basis of example 2 as follows: the outer side end of the end cover 3 is provided with a convex limiting sliding head 17, the limiting sliding head 17 is arranged coaxially with the end cover 3, and the limiting sliding head 17 is located in an area surrounded by the plurality of braking tooth grooves 11.

In this embodiment, the limiting slider 17 is used to cooperate with other structures so as to limit the movement and rotation of the rotating shaft. Meanwhile, through the design of the limiting sliding head 17, an acting point can be provided for an operator to slide the end cover 3.

Example 4

This example is further defined on the basis of example 3 as follows: the slider 9 has and can pass the tight section 18 of butt 6 open-ended slider support with link up in the tight section 18 bottom of slider support and can with the spacing section 19 of 6 inner chamber complex sliders of butt through-hole, the bottom face of the spacing section 19 of slider can with the tank bottom face surface contact of sliding notch 7.

In this embodiment, the limiting position of slider 9 radial outside removal can be restricted in the cooperation of the spacing section 19 of slider and the 6 inner chambers of butt opening, avoids slider 9 to break away from axis body 1.

The stability of the radial movement of the sliding block 9 can be improved by the surface-to-surface contact of the sliding block limiting section 19 and the sliding groove opening 7.

In order to ensure the surface-to-surface fit of the sliding block 9 and the sliding groove opening 7, preferably, a mounting hole 20 capable of being communicated with the abutting through opening 6 is further formed in the shaft body 1, and a sliding block elastic piece 21 capable of acting on the sliding block limiting section 19 is installed in the mounting hole 20.

In this embodiment, the slider elastic member 21 may be a compression spring. Each slider 9 department all can be provided with two mounting holes 20, and two mounting holes 20 are located the both sides of butt through-opening 6 respectively. The elastic member 21 of the slider is provided to give a supporting force to the slider 9 so that the slider 9 tends to be in close contact with the bottom surface of the groove of the slide notch 7.

Example 5

This example is further defined on the basis of example 3 as follows: the bottom end of the slide bar 5 is provided with a slide bar limiting bulge 22;

the shaft body 1 is provided with a slide bar limiting groove 23 which can be matched with the slide bar limiting bulge 22.

In this embodiment, the slide rod limiting protrusion 22 is matched with the slide rod limiting groove 23, so that the stability of the axial movement of the slide rod 5 can be improved, and the slide rod 5 is prevented from being shifted. As shown in fig. 4, the slide rod limiting groove 23 may be formed with a small opening and a large inner cavity, and accordingly, the slide rod limiting protrusion 22 should be adapted to the slide rod limiting groove 23, so as to prevent the slide rod 5 from deviating in the circumferential direction and the radial direction of the shaft body 1.

Example 6

As shown in fig. 1 to 14, a paying-off device comprises a support frame 24 and a rotating shaft with a braking function as described in any one of embodiments 3 to 5;

the supporting frame 24 is provided with two supporting slide rails 25 which are arranged at intervals, and a first supporting roller 26 is arranged on the supporting slide rails 25 in a rolling manner;

the front end of the supporting slide rail 25 is connected with a limiting bracket 27, and a second supporting roller 28 is arranged on the limiting bracket 27 in a rolling manner;

the rear end of the supporting slide rail 25 is connected with an entering bracket 29, the top end surface of the entering bracket 29 is arranged in an inclined plane, and the height of the entering bracket 29 is gradually reduced towards the direction far away from the supporting slide rail 25;

the supporting frame 24 is further provided with two limiting plates 30 arranged at intervals, the two limiting plates 30 are respectively positioned at the outer sides of the two supporting slide rails 25, the limiting plates 30 are provided with track sliding groove openings 32 which can be matched with the limiting slide heads 17 in a placing manner, and the limiting plates 30 are further provided with abdicating through openings 33 which are communicated with the track sliding groove openings 32 and can abdicate the end cover limiting ring grooves 15;

the support frame 24 is further provided with a brake driving device 34, an output end of the brake driving device 34 is connected with a brake member 35, and the brake member 35 comprises a brake rod 36 which can penetrate through the yielding through hole 33 and is arranged in the brake tooth groove 11.

In this embodiment, the cable drum should have two drum wheels 51 capable of being respectively engaged with the two supporting slide rails 25, and as shown in fig. 5, the drum wheels 51 are provided with the cable drum supporting through holes 47. In order to facilitate the movement and rotation of the cable drum on the supporting rail 25, the supporting rail 25 is provided with a supporting and receiving groove 43 capable of partially receiving the cable drum. By the arrangement of the first support roller 26 and the second support roller 28, the cable drum can be effectively supported and the rotation of the cable drum can be ensured. When the cable is pulled from the front end of the support frame 24, the cable coil can be effectively prevented from being separated from the support slide rail 25 from the front end through the arrangement of the limiting bracket 27. To prevent the cable reel from accidentally rolling from the rear end during the paying-off process, the top end of the first support roller 26 may slightly protrude from the support rail 25, so that the cable reel can be locked to rotate between the first support roller 26 and the second support roller 25 after entering the support rail 25.

When this embodiment is used, adjust the relative position of end cover 3 and axis body 1 earlier, make each slider 9 on the axis body 1 accomodate in butt opening 6, run through the pivot again and support the through-hole in the cable drum, run through the back, the end cover 3 that slides again for each slider 9 butt is in the internal face of cable drum support through-hole, through this state of retaining member 14 locking, the cable drum then is in the state that the interlock is connected with the pivot. The cable roll is rolled to the entering end of the support 29 by the rotating shaft, at this time, the cable reel is aligned to enter the support 29, the limiting sliding heads 17 on the two end covers 3 are aligned to the track sliding groove openings 32 respectively, the cable roll is pushed by force, the cable roll can easily enter the supporting sliding rail 25, the cable roll is pushed continuously until the cable roll enters the area between the first supporting roller 26 and the second supporting roller 28, the cable roll moves downwards with small amplitude, and the supporting accommodating groove 43 can give way to the partial displacement. At this time, the cable is pulled from the front end of the support frame 24 to perform the paying-off process. During the paying-off process, the cable reel rotates by taking the rotating shaft as the axis. When the cable drum needs to be braked, the brake driving device 34 is started to move the brake rod 16 to pass through the abdicating through hole 33 and enter the brake tooth groove 11, and at the moment, the position of the cable drum can be locked, and excessive paying-off is avoided.

Wherein, through limiting plate 30's setting, when removing the cable drum, can carry on spacingly to the countershaft both ends, and then can carry on spacingly to the cable drum, guarantee that two dish wheels of cable drum can get into in the support slide rail 25. In addition, the stability of the movement of the cable reel can be further ensured by the matching of the track sliding groove opening 32 and the limiting sliding head 17. Since the cable drum will move in a small amount during the movement, the width of the track groove opening 32 should be larger than the outer diameter of the limiting slider 17. In order to reduce the friction force of the relative movement or rotation between the position limiting plate 30 and the rotating shaft, a position limiting plate ball 53 may be rolled on the position limiting plate 30.

In the present embodiment, the brake actuator 34 may be a cylinder if it is applied to the case where the ventilation is possible. If the brake driving device 34 is applied under the condition that the electric ventilation cannot be carried out, the brake driving device 34 can drive the brake member 35 to move along the axial direction of the shaft body 1 by using the cooperation of a threaded rod and a nut.

In addition, the top end part of the stopper bracket 27 has a receding slope 57, so that the rotation of the disk wheel is prevented from being affected. In order to make the second supporting roller 28 act on the disk wheel stably, the limiting bracket 27 can be connected to the supporting slide rail 25 through a detachable connecting structure, and the detachable connecting structure can be selected from a screw, a bolt, a nut and the like. So, can adjust the angle that spacing support 27 supported slide rail 25 relatively according to the rotation condition of cable drum, and then adjust the position of second supporting roller 28 for second supporting roller 28 can roll and act on the reel wheel, plays good supporting role to the cable drum.

One or two brake actuators 34 may be provided, and as shown in fig. 7, the two brake actuators 34 are respectively located outside the two limit plates 30.

Example 7

This example is further defined on the basis of example 6 as follows: the braking piece 35 further comprises a limiting cylinder 10 which can be in rolling fit with the limiting slider 17;

the brake levers 36 are arranged on two sides of the outer surface of the limiting cylinder 10.

In this embodiment, the cross section of the limiting slider 17 is circular, and the limiting cylinder 10 has a limiting hole 56 which can be sleeved on the limiting slider 17 and is in rolling fit with the limiting slider 17. When in the paying-off process, the braking part 35 can be moved by the braking driving device 34, so that the limiting cylinder 10 can be sleeved on the limiting sliding head 17, and thus, the limiting cylinder 10 can limit the rotation of the rotating shaft and effectively improve the stability of the rotation of the shaft body 1. When the shaft body 1 needs to be braked, the brake 35 can be moved again by the brake driving device 34 until the brake lever 36 enters the brake tooth groove 11.

In order to improve the moving stability of the braking member 35, a braking member guiding slide rail 49 may be disposed on the supporting frame 24, and a braking member guiding slide block 50 capable of slidably cooperating with the braking member guiding slide rail 49 may be disposed on the braking member 35.

Example 8

This example is further defined on the basis of example 7 as follows: the supporting frame 24 is further provided with two supporting slide rods 31, and the supporting slide rods 31 are arranged in the area between the supporting slide rail 25 and the limiting plate 30 which are positioned on the same side;

two support slide bars 31 can be respectively engaged with both ends of the shaft body 1.

In this embodiment, the supporting rod 31 can assist in supporting the rotating shaft, thereby improving the reliability of operation. In addition, to improve the stability of the rotation of the cable drum when the cable is paid out from the front end of the support frame 24, the front end of the support rod 31 may have a limit bent section 54, which prevents the rotating shaft from accidentally rolling forward.

Example 9

This example is further defined on the basis of example 7 as follows: the front end of the support frame 24 is provided with a first guide roller 37 and a second guide roller 38 in sequence along the cable conveying direction.

In this embodiment, the first guide roller 37 and the second guide roller 38 are provided to correct the curvature of the cable. In use, the free end of the cable is passed under the first guide roller 37 and over the second guide roller 38 in sequence.

For correction according to the curvature of the cable, it is preferable that the second guide roller 38 is vertically adjustably mounted on the support frame 24 by a height adjustment assembly. In this way, the height position of the second guide roller 38 can be adjusted.

The height adjusting assembly may include two supporting seats 39 installed on the supporting frame 24, an adjusting screw 40 is rotatably connected to the supporting seats 39, a nut is screwed on the bottom end of the adjusting screw 40 and penetrates through the supporting seats 39, connecting seats 41 are connected to the nut, the same supporting rod 42 is connected to the two connecting seats 41, and the second guide roller 38 is arranged on the supporting rod 42 in a rolling manner.

Thus, by rotating the adjusting screw 40, the nut can move up and down relative to the supporting seat 39, so as to adjust the height position of the connecting seat 41, and further adjust the height position of the second guiding roller 38.

Also, the height adjustment assembly may be adapted to adjust the height position of the first guide roller 37 to better correct the curvature of the cable.

The first guide roller 37 and the second guide roller 38 are rotatably disposed on the support frame 24, so that friction between the cable and the support frame can be reduced.

The above are only preferred embodiments of the present invention, and it should be noted that several modifications and improvements made by those skilled in the art without departing from the technical solution should also be considered as falling within the scope of the claims.

Claims

1. The utility model provides a unwrapping wire ware which characterized in that: comprises a supporting frame (24) and a rotating shaft with a braking function,

the rotating shaft with the braking function comprises a shaft body (1) and two end covers (3) which can be respectively in sliding fit with two end parts of the shaft body (1), wherein two end parts of the shaft body (1) are respectively provided with a propping assembly;

the abutting component comprises a plurality of sliding rod movable grooves (2) which are axially formed along the shaft body, the sliding rod movable grooves (2) penetrate through the end part of the shaft body (1), the plurality of sliding rod movable grooves (2) are uniformly distributed along the circumferential direction of the shaft body (1), the groove bottom of each sliding rod movable groove (2) is connected with a sliding rod (5) which can axially slide along the shaft body (1) in each sliding rod movable groove (2) through a sliding rod elastic piece (4), at least one sliding groove opening (7) is formed in each sliding rod (5), the groove bottom of each sliding groove opening (7) is arranged in an inclined plane, and the groove depth of each sliding groove opening (7) gradually becomes shallow towards the area close to the end part of the shaft body (1);

the abutting assembly further comprises abutting port groups which are arranged on the shaft body (1) and correspond to the sliding rod movable grooves (2), each abutting port group comprises abutting ports (6) which correspond to the sliding groove openings (7) and are communicated with the sliding rod movable grooves (2), the abutting ports (6) penetrate through the outer surface of the shaft body (1), the abutting ports (6) are arranged in a mode that the openings are small and the inner cavity is large, sliding blocks (9) capable of moving along the shaft body (1) in the radial direction are arranged in the abutting ports (6), and the bottom end portions of the sliding blocks (9) can be matched with the sliding groove openings (7);

the inner side end of the end cover (3) is provided with a plurality of abutting rods (8) which can be respectively placed into and matched with the plurality of slide rod movable grooves (2) and can act on the slide rods (5), the end cover (3) is provided with a plurality of end cover sliding grooves (12) along the axial direction of the shaft body (1), the end part of the shaft body (1) is provided with locking holes (13) corresponding to the end cover sliding grooves (12), and the end cover locking device further comprises locking pieces (14) which can penetrate through the end cover sliding grooves (12) and are in threaded fit with the locking holes (13);

loosen retaining member (14) and slide end cover (3), when retaining member (14) is located that end of end cover spout (12) that is close to slider (9), slide bar elastic component (4) acts on slide bar (5) so that: the deep groove area of the sliding groove opening (7) is just opposite to the bottom end of the sliding block (9), and the sliding block (9) can be accommodated in the abutting through opening (6); when the retaining member is located that end cover spout (12) and keeps away from that one end of slider (9), butt pole (8) act on slide bar (5) for: the sliding rod (5) overcomes the action of the sliding rod elastic part (4) to axially move, the shallow groove area of the sliding groove opening (7) is over against the bottom end of the sliding block (9) and acts on the sliding block (9), so that the top end part of the sliding block (9) can be protruded out of the abutting through opening (6);

an end cover limiting ring groove (15) which is coaxial with the end cover (3) is formed in the end cover (3), and a plurality of braking tooth grooves (11) which are annularly arranged are formed in the end cover limiting ring groove (15);

the outer side end of the end cover (3) is provided with a convex limiting sliding head (17), the limiting sliding head (17) and the end cover (3) are coaxially arranged, and the limiting sliding head (17) is positioned in an area surrounded by the plurality of braking tooth grooves (11);

the supporting frame (24) is provided with two supporting slide rails (25) which are arranged at intervals, and first supporting rollers (26) are arranged on the supporting slide rails (25) in a rolling manner;

the front end of the supporting slide rail (25) is connected with a limiting bracket (27), and a second supporting roller (28) is arranged on the limiting bracket (27) in a rolling manner;

the rear end of the supporting slide rail (25) is connected with an entering support (29), the top end surface of the entering support (29) is arranged in an inclined plane, and the height of the entering support (29) is gradually reduced towards the direction far away from the supporting slide rail (25);

the supporting frame (24) is further provided with two limiting plates (30) which are arranged at intervals, the two limiting plates (30) are respectively positioned on the outer sides of the two supporting slide rails (25), the limiting plates (30) are provided with track chute openings (32) which can be matched with the limiting slide heads (17) in a placing mode, and the limiting plates (30) are further provided with yielding through openings (33) which are communicated with the track chute openings (32) and can yield the end cover limiting ring grooves (15);

the support frame (24) is further provided with a brake driving device (34), the output end of the brake driving device (34) is connected with a brake piece (35), and the brake piece (35) comprises a brake rod (36) which can penetrate through the yielding through opening (33) and is placed into the brake tooth groove (11).

2. The paying-off device according to claim 1, wherein: the slider (9) have can pass tight section (18) are supported to butt through hole (6) open-ended slider and link up in the slider support tight section (18) bottom and can with butt through hole (6) inner chamber complex slider spacing section (19), the bottom face of the spacing section of slider (19) can with the tank bottom face surface contact of sliding notch (7).

3. The paying-off device according to claim 2, wherein: the shaft body (1) is further provided with a mounting hole (20) communicated with the butt through opening (6), and a slider elastic part (21) acting on the slider limiting section (19) is mounted in the mounting hole (20).

4. The paying-off device as claimed in claim 1, wherein: the bottom end of the sliding rod (5) is provided with a sliding rod limiting bulge (22);

the shaft body (1) is provided with a slide bar limiting groove (23) which can be matched with the slide bar limiting bulge (22).

5. The paying-off device according to claim 1, wherein: the braking piece (35) further comprises a limiting cylinder (10) which can be in rolling fit with the limiting sliding head (17);

the brake levers (36) are arranged on two sides of the outer surface of the limiting cylinder (10).

6. The paying-off device according to claim 1, wherein: the supporting frame (24) is also provided with two supporting slide rods (31), and the supporting slide rods (31) are arranged in the area between the supporting slide rails (25) and the limiting plate (30) which are positioned on the same side;

the two supporting sliding rods (31) can be respectively matched with the two end parts of the shaft body (1).

7. The paying-off device according to claim 1, wherein: the front end of the support frame (24) is sequentially provided with a first guide roller (37) and a second guide roller (38) along the cable conveying direction.