CN209097966U - Portable service tool - Google Patents

Abstract

The utility model relates to a portable maintenance tool, which relates to the field of auxiliary equipment structure of electric power system. A portable maintenance tool with compact structure, convenient operation, good stability and easy storage is proposed, which can significantly improve the working efficiency of retracting and releasing wires after use, thereby greatly shortening the measurement time of grounding resistance. It includes a fixed cylinder, a wire take-up assembly, a pay-off assembly, a rope reel, a wire and a switch assembly; the allowable rotation directions of the one-way bearing 1 and the one-way bearing 3 are opposite, and the bottom edge of the wire take-up drive wheel is connected to the wire pay-off The bottom edge of the driving wheel is on the same horizontal plane, the take-up shaft and the pay-off shaft are coaxial, and they are hinged at the end of the fixed cylinder; the utility model has the advantages of exquisite structure, convenient operation and stable It has the advantages of good performance, high work efficiency and good integrity. After use, it can significantly improve the work efficiency when collecting and paying out, thereby greatly shortening the measurement time of grounding resistance.

Description

Portable Repair Tool

technical field

The utility model relates to the structural field of auxiliary equipment of a power system.

Background technique

At present, the rapid retraction and release of conduction during the maintenance process of the power system has always been a technical problem to be solved urgently by those skilled in the art. Taking the measurement of grounding resistance as an example: in the process of measuring the grounding resistance, a wire needs to be used to connect the wiring piles one and one on the table. The grounding rod 1, which is 40 meters away from the grounding body, is connected to the second grounding rod on the table and the grounding rod 2, which is 20 meters away from the grounding body, through another wire. It has a great influence on the measurement efficiency of grounding resistance. At the same time, the traditional method of manually collecting and paying off the wire is also very easy to cause the problem of wire winding and knotting, thereby further reducing the actual work efficiency.

Utility model content

Aiming at the above problems, the present utility model proposes a portable maintenance tool with compact structure, convenient operation, good stability and easy storage, which can significantly improve the work efficiency when retracting and releasing wires after use, thereby greatly shortening the measurement time of grounding resistance.

The technical scheme of the utility model is as follows: it comprises a fixing cylinder, a wire take-up assembly, a wire pay-off assembly, a rope winding cylinder, a wire and a switching assembly;

The take-up assembly includes a take-up shaft, a take-up drive wheel, a take-up friction disc, a one-way bearing, a second one-way bearing, a take-up hinge seat, a pair of take-up brackets and a pair of take-up guide wheels. The wire drive wheel is hinged to one side of the fixed cylinder, the wire take-up friction disc is fixedly connected to the end surface of the wire take-up drive wheel facing the fixed cylinder, the wire take-up shaft passes through the wire take-up drive wheel, and the one-way bearing is a Connected between the take-up shaft and the take-up drive wheel, the wire take-up hinge seat is empty sleeved at the end of the take-up shaft away from the fixed cylinder, and the second one-way bearing is connected between the wire take-up hinge seat and the take-up shaft, so The allowable rotation directions of the one-way bearing and the one-way bearing are opposite; the wire take-up bracket is arranged obliquely downward, and the top end is fixedly connected with the wire take-up hinge seat, and the wire take-up guide wheel is hinged on the bottom end of the wire take-up bracket , the bottom edges of a pair of the wire take-up guide wheels are on the same horizontal plane as the bottom edges of the wire take-up drive wheels;

The pay-off assembly includes a pay-off shaft, a pay-off drive wheel, a pay-off friction disc, a three-way bearing, a four-way bearing, a pay-off hinge seat, a pair of pay-off brackets and a pair of pay-off guide wheels. The pay-off drive wheel is hinged with the side of the fixed cylinder away from the take-up assembly, the pay-off friction disc is fixedly connected to the end surface of the pay-off drive wheel toward the fixed cylinder, and the pay-off shaft passes through the pay-off drive wheel, The three-way bearing is connected between the pay-off shaft and the pay-off drive wheel, the pay-off hinge seat is vacantly sleeved at the end of the pay-off shaft away from the fixed cylinder, and the one-way bearing four is connected to the pay-off hinge. Between the seat and the pay-off shaft, the allowable rotation directions of the one-way bearing three and the one-way bearing four are opposite; the pay-off bracket is arranged obliquely downward, and the top end is fixedly connected to the pay-off hinge seat, the pay-off guide The wheel is hinged on the bottom end of the pay-off bracket, and the bottom edges of a pair of said pay-off guide wheels are on the same horizontal plane as the bottom edge of the pay-off drive wheel;

The allowable rotation directions of the one-way bearing 1 and the one-way bearing 3 are opposite, the bottom edge of the take-up drive wheel and the bottom edge of the pay-off drive wheel are on the same horizontal plane, and the take-up shaft and the pay-off shaft are coaxial. , and the two are hinged at the end of the fixed cylinder;

The rope reel is slidably sleeved on the take-up reel and the pay-off reel, the fixed reel is also provided with a rope outlet hole, and one end of the wire is fixedly connected to the rope reel, and on the rope reel There are several circles around the wire, and the other end of the wire extends out of the fixing cylinder from the rope hole;

The two sides of the rope winding drum are provided with annular sinking platforms, the switching assembly includes a switching rod and a pair of switching rings, and a pair of the switching rings is sleeved on the annular sinking platform, and the switching rods are C-shaped. Both ends of the switching rod extend into the fixing cylinder, and are respectively fixed and connected to the two switching rings.

The end face of the take-up shaft facing the take-up shaft is provided with a deep groove arranged along its axial direction, and an annular groove is also opened on the inner wall of the deep groove; the end face of the pay-off shaft facing the take-up shaft is fixed A plug-in shaft adapted to the deep groove is connected, and a limit ring adapted to the groove is fixedly connected to the side wall of the plug-in shaft.

The top of the fixing cylinder is provided with a pair of elongated sliding holes, two ends of the switching rod respectively protrude into the fixing cylinder from the two sliding holes, and the inner walls of the two sliding holes are covered with damping material.

The utility model can realize the rapid switching between the wire take-up state and the pay-off state by adjusting the axial position of the bobbin in the fixed cylinder by the switching rod. , so as to effectively solve the problems of low work efficiency caused by manual winding and unwinding in the prior art, and it is easy to cause wire entanglement and knotting. It has the advantages of good integrity, easy to carry or store, etc. After use, it can significantly improve the work efficiency when collecting and releasing wires, thereby greatly shortening the measurement time of grounding resistance.

Description of drawings

Figure 1 is a schematic diagram of the structure of this case,

Fig. 2 is the A-A direction sectional view of Fig. 1;

In the figure, 1 is a fixed cylinder, and 10 is a rope winding cylinder;

21 is the take-up shaft, 22 is the take-up drive wheel, 23 is the take-up friction disc, 24 is the one-way bearing, 25 is the one-way bearing two, 26 is the take-up hinge seat, 27 is the take-up bracket, 28 is the take-up guide wheel;

31 is the pay-off shaft, 311 is the plug-in shaft, 312 is the limit ring, 32 is the pay-off drive wheel, 33 is the pay-off friction disc, 34 is the one-way bearing three, 35 is the one-way bearing four, 36 is the pay-off Hinged seat, 37 is a pay-off bracket, 38 is a pay-off guide wheel;

41 is a switch lever, and 42 is a switch ring.

Detailed ways

As shown in Figures 1-2, the utility model includes a fixing cylinder 1, a wire take-up assembly, a wire pay-off assembly, a rope winding cylinder 10, a wire and a switching assembly;

The take-up assembly includes a take-up shaft 21, a take-up drive wheel 22, a take-up friction disc 23, a one-way bearing 24, a second one-way bearing 25, a take-up hinge seat 26, a pair of take-up brackets 27 and a pair of take-up brackets. The wire guide wheel 28, the wire take-up drive wheel 22 is hinged with one side of the fixed cylinder 1, the wire take-up friction disc 23 is fixedly connected on the end surface of the wire take-up drive wheel 22 toward the fixed cylinder 1, and the wire take-up shaft 21 passes through. The wire take-up drive wheel 22 is set, the one-way bearing 24 is connected between the wire take-up shaft 21 and the wire take-up drive wheel 22, and the wire take-up hinge seat 26 is vacantly sleeved on the position of the wire take-up shaft 21 away from the fixed cylinder 1. At one end, the second one-way bearing 25 is connected between the wire take-up hinge seat 26 and the wire take-up shaft 21. The allowable rotation directions of the first one-way bearing 24 and the second one-way bearing 25 are opposite; the wire take-up bracket 27 is inclined in the opposite direction. The upper end is fixedly connected to the wire take-up hinge seat 26, the wire take-up guide wheel 28 is hinged on the bottom end of the wire take-up bracket 27, and the bottom edges of a pair of the wire take-up guide wheels 28 are connected to the wire take-up drive wheel 22. The bottom edges of the s are on the same level;

The pay-off assembly includes a pay-off shaft 31, a pay-off drive wheel 32, a pay-off friction disc 33, a three-way bearing 34, a four-way bearing 35, a pay-off hinge seat 36, a pair of pay-off brackets 37 and a pair of The pay-off guide wheel 38, the pay-off drive wheel 32 is hinged with the side of the fixed cylinder 1 away from the take-up assembly, and the pay-off friction disc 33 is fixedly connected to the end face of the pay-off drive wheel 32 towards the fixed cylinder 1, so The pay-off drive wheel 32 is threaded through the pay-off shaft 31, the one-way bearing 34 is connected between the pay-off shaft 31 and the pay-off drive wheel 32, and the pay-off hinge seat 36 is vacantly sleeved on the pay-off drive wheel 32. The end of the spool 31 away from the fixed cylinder 1, the one-way bearing 435 is connected between the pay-off hinge seat 36 and the spool 31, the one-way bearing 34 and the one-way bearing 435 The allowable rotation directions are opposite The said pay-off support 37 is arranged obliquely downward, and the top end is fixedly connected with the pay-off hinge seat 36, the said pay-off guide wheel 38 is hinged on the bottom end of the pay-off support 37, a pair of said pay-off guide wheels 38 The bottom edge is on the same horizontal plane as the bottom edge of the pay-off drive wheel 32;

The allowable rotation directions of the one-way bearing 24 and the one-way bearing 34 are opposite, the bottom edge of the take-up drive wheel 22 and the bottom edge of the pay-off drive wheel 32 are on the same horizontal plane, the take-up shaft 21 and the pay-off drive wheel 32 are on the same level. The bobbin 31 is coaxial, and the two extend into the end of the fixed cylinder 1 and are hinged;

The rope reel 10 is slidably sleeved on the take-up reel 21 and the pay-off reel 31, the fixing reel 1 is also provided with a rope outlet hole, and one end of the wire is fixedly connected to the rope reel, and is placed on the rope reel. The rope winding drum is wound with several turns, and the other end of the wire protrudes out of the fixed drum from the rope outlet hole;

The two sides of the rope winding drum are provided with annular sinks. The switching assembly includes a switching rod 41 and a pair of switching rings 42. A pair of the switching rings 42 is sleeved on the annular sinking. C-shaped, both ends of the switch rod 41 extend into the fixing cylinder 1 and are respectively fixed and connected to the two switch rings 42 . When it is necessary to pay off, the operator can push the bobbin to move axially in the fixed cylinder through the switch rod, so that the fixed cylinder and the pay-off friction disc fit together. Make the take-up drive wheel and the pay-off drive wheel rotate under the influence of ground friction at the same time. At this time, one-way bearing three and one-way bearing two are allowed to rotate, while one-way bearing four and one-way bearing one are not allowed to rotate, so , the pay-off shaft will remain stationary, the pay-off drive wheel and the pay-off shaft will rotate relative to each other, while the take-up drive wheel and the take-up shaft will rotate relative to the pay-off shaft at the same time. Outgoing wire.

In the same way, when it is necessary to take up the wire, the operator can push the bobbin to move axially in the fixed cylinder through the switch lever until the fixed cylinder and the take-up friction disc are in contact. To move, you can gradually retract the wire into the fixed cylinder in the process of moving.

To sum up, in this case, by adjusting the axial position of the bobbin in the fixed cylinder by the switch lever, the quick switch between the take-up state and the pay-off state can be realized. This can effectively solve the problems of low work efficiency caused by manual winding and pay-off in the prior art, and it is easy to cause wire winding and knotting. It has the advantages of high efficiency, good integrity, easy to carry or store, etc. After use, it can significantly improve the work efficiency when collecting and paying out, thus greatly shortening the measurement time of grounding resistance.

The end surface of the take-up reel 21 facing the take-up reel 31 is provided with a deep groove arranged along its axial direction, and an annular groove is also opened on the inner wall of the deep groove; the reel 31 faces the take-up reel 21 A plug shaft 311 adapted to the deep groove is fixedly connected to the end face of the plug shaft 311 , and a limit ring 312 adapted to the groove is fixedly connected to the side wall of the plug shaft 311 . Thus, the articulation between the take-up shaft and the pay-off shaft is realized, so that the two can perform relative rotational motion while maintaining the coaxial center. In actual processing, the axis shaft can be cut along the axis of the take-up shaft and divided into two half shafts. can be connected.

The top of the fixing cylinder 1 is provided with a pair of elongated sliding holes, two ends of the switching rod respectively extend into the fixing cylinder from the two sliding holes, and the inner walls of the two sliding holes are covered with damping material. In this way, when the operator drives the bobbin to slide in place in the fixed cylinder through the switch lever, the axial movement of the bobbin can be effectively avoided under the influence of the damping material, thereby effectively ensuring the stability of the case.

Claims (3)

1. portable service tool, which is characterized in that including fixed cylinder, take-up component, unwrapping wire component, rope drum, conducting wire and cut Change component；

The take-up component includes Wire winding shaft, take-up driving wheel, take-up frictional disk, unilateral bearing one, unilateral bearing two, take-up hinge The side of joint chair, a pair of of take-up bracket and a pair of of take-up guide wheel, the take-up driving wheel and fixed cylinder is hinged, the take-up friction Disk is fixedly connected on take-up driving wheel towards on the end face of fixed cylinder, and the Wire winding shaft wears the take-up driving wheel, the list It is connected between Wire winding shaft and take-up driving wheel to bearing one, the take-up hinged seat empty set is in the Wire winding shaft far from fixed cylinder One end, the unilateral bearing two is connected between take-up hinged seat and Wire winding shaft, the unilateral bearing one and unilateral bearing two Permission direction of rotation it is opposite；The take-up bracket is arranged obliquely and top is fixedly linked with take-up hinged seat, the take-up Guide wheel is hinged on the bottom end of take-up bracket, and the root edge of a pair of take-up guide wheel is in same water with the root edge of take-up driving wheel In plane；

The unwrapping wire component includes paying out reel, unwrapping wire driving wheel, unwrapping wire frictional disk, unilateral bearing three, unilateral bearing four, unwrapping wire hinge Joint chair, a pair of of wire-unfolding rack and a pair of of unwrapping wire guide wheel, the unwrapping wire driving wheel and side of the fixed cylinder far from take-up component are hinged, The unwrapping wire frictional disk is fixedly connected on unwrapping wire driving wheel towards on the end face of fixed cylinder, and the paying out reel wears the unwrapping wire and drives Driving wheel, the unilateral bearing three are connected between paying out reel and unwrapping wire driving wheel, and the unwrapping wire hinged seat empty set is in the unwrapping wire The one end of axis far from fixed cylinder, the unilateral bearing four are connected between unwrapping wire hinged seat and paying out reel, the unilateral bearing three It is opposite with the permission direction of rotation of unilateral bearing four；The wire-unfolding rack is arranged obliquely and top is fixed with unwrapping wire hinged seat Be connected, the unwrapping wire guide wheel is hinged on the bottom end of wire-unfolding rack, the root edge of a pair of unwrapping wire guide wheel with unwrapping wire driving wheel Root edge is in same level；

The permission direction of rotation of the unilateral bearing one and unilateral bearing three is on the contrary, the root edge and unwrapping wire of the take-up driving wheel drive The root edge of driving wheel is in same level, the Wire winding shaft and paying out reel is concentric and the two protrudes into the end point of fixed cylinder It is hinged；

The rope drum is slidably socketed the Wire winding shaft and paying out reel, and rope hole is also provided in the fixed cylinder, described One end of conducting wire is fixedly connected on rope drum, and several circles are arranged on rope drum, and the other end of the conducting wire is from rope stretching Hole is extend out to except fixed cylinder；

The two sides of the rope drum offer annular heavy platform, and the changeover module includes changer lever and a pair of of switching ring, Yi Duisuo It states switching ring to be socketed in annular heavy platform, the changer lever is in C font, and the both ends of the changer lever are protruded into fixed cylinder and divided It is not fixedly connected with two switching rings.

2. portable service tool according to claim 1, which is characterized in that the Wire winding shaft is towards the end face of paying out reel On offer the deep trouth being axially arranged along it, cricoid groove is also provided on the inner wall of the deep trouth；The paying out reel direction It is fixedly connected with the grafting axis being adapted to deep trouth on the end face of Wire winding shaft, is fixedly connected on the side wall of the grafting axis and groove The stop collar of adaptation.

3. portable service tool according to claim 1, which is characterized in that offer a pair at the top of the fixed cylinder The slide opening of strip, the both ends of the changer lever are protruded within fixed cylinder from two slide openings respectively, are wrapped on the inner wall of two slide openings It is covered with damping material.