CN216634231U

CN216634231U - Portable manual labor-saving cap breaker

Info

Publication number: CN216634231U
Application number: CN202122871804.7U
Authority: CN
Inventors: 韩新宇; 佟明; 马连瑞; 刘思宇; 李万亮; 张国豪; 王铭伟; 宋晓; 王浩廷; 庞福宇
Original assignee: Anshan Power Supply Co Of State Grid Liaoning Electric Power Co; State Grid Corp of China SGCC
Current assignee: Anshan Power Supply Co Of State Grid Liaoning Electric Power Co; State Grid Corp of China SGCC
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-05-31
Anticipated expiration: 2031-11-22

Abstract

A portable manual labor-saving cap breaker comprises a shell and a sleeve nut, wherein the shell is connected with one end of the sleeve nut through a bolt, and a round sleeve is arranged at the other end of the sleeve nut; a gear shaft, planetary gears and an output shaft are arranged in the shell, each planetary gear is connected with the output shaft through a pin shaft, and the gear shaft, the planetary gears and the output shaft form a primary planetary reduction mechanism; the output end of the output shaft is connected with the other side of the shell through a bearing in a three-phase manner, the output end of the output shaft is provided with a square hole, the square hole is matched with one end of a screw rod, the screw rod is provided with a thread section, and the thread section is meshed with a thread inner cavity of a sleeve nut; and a mandril is arranged in the inner cavity of the sleeve nut corresponding to the other end of the screw rod. The utility model has the advantages that: adopt two kinds of speed reduction power boost mechanisms of one-level planet reduction gears and screw reduction gears to superpose mutually, can provide sufficient speed reduction power boost ratio, the instrument dead weight is lighter simultaneously, has obviously improved the efficiency of disassembling the nut in the maintenance operation.

Description

Portable manual labor-saving cap breaker

Technical Field

The utility model relates to the technical field of universal tools, in particular to a portable manual labor-saving cap breaking device.

Background

The spanner is the common tool in the electric power maintenance operation, and electric power maintenance, especially open-air electric power maintenance operation have high altitude construction, bolt and nut easily rust, the narrow and small and dangerous characteristics in working space, and the spanner that current electrician used can not satisfy the requirement of these working characteristics completely. Firstly, the existing spanner for electricians is generally a common insulating spanner, the spanner has the defects of large volume and labor waste, the rotating radius of the spanner is generally the length of the spanner when a bolt and a nut are rotated, the use radius of the spanner is further enlarged, when an electrician is used for detaching the bolt and the nut in a narrow space, if no spanner with proper size is available, peripheral components are generally required to be detached, the working efficiency is greatly reduced, and the danger coefficient is increased; then, some power supply companies can purchase some non-electric laborsaving wrenches at present, and non-electric laborsaving wrench is littleer than electronic spanner volume and quality, more is applicable to the electric power and overhauls, but non-electric laborsaving wrench in the current market still generally has bulky, the operating radius is big and the inefficiency shortcoming. The bolt and nut disassembling process can be generally divided into two processes, namely, the first rotation of the bolt and nut and the subsequent rotation of the bolt and nut, the first rotation of the bolt and nut is most labor-consuming, the subsequent rotation process of the bolt and nut is very easy, the prior non-electric labor-saving wrench is generally labor-saving in the whole process, and the rotation efficiency after the bolt and nut are loosened is generally lower than that of a common wrench; secondly, when an electrician overhauls at high altitude, the bolt and the nut fall down to be a very troublesome thing, and especially when there is no spare bolt and nut, the current spanner for electric power overhaul does not generally have the ability of retrieving the bolt and the nut.

The Chinese patent with the application number of 201910255494.0 discloses a quick labor-saving wrench for electric power overhaul, which comprises a wrench head, a transmission device and a handle, wherein the wrench head comprises a chuck and an insert rod, the transmission device comprises a sleeve, one end of the sleeve is provided with a sleeve inner cavity, the insert rod can be inserted into the sleeve inner cavity, a partition plate, a first planetary speed reducer and a second planetary speed increasing device are sequentially and fixedly installed inside the sleeve, a guide groove is installed on the partition plate, an elastic part and a rotating shaft are installed in the guide groove, the first planetary speed reducer comprises a first sun wheel and a plurality of first planet wheels, a first top plate is installed at one end of the sleeve, a second sun wheel is fixedly installed in the middle of the first top plate, and the second planetary speed increasing device comprises a second sun wheel, a rotating drum and a plurality of second planet wheels. The anti-falling device has the defects that the anti-falling device is composed of two groups of planetary speed reducing mechanisms, the structure is complex, the spanner is heavy in weight, the operation is inconvenient, and the effect on preventing the nut from falling is not obvious.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a portable manual labor-saving nut breaker, which overcomes the defects of the prior art, adopts a planetary speed reducing mechanism to drive a pointed-end ejector rod to jack a nut, and then applies a rotating force through a wrench to finish the removal of the nut, the pointed-end ejector rod causes partial plastic deformation to the nut, so the nut is not easy to fall off, the functions of a primary planetary speed reducing mechanism and a screw nut speed reducing mechanism are superposed, so that the enough speed reducing and force increasing ratio can be provided, meanwhile, the self weight of a tool is lighter, and the improvement of the nut dismounting efficiency in the overhauling operation is facilitated.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the portable manual labor-saving cap breaker comprises a shell and a sleeve nut, wherein the shell is connected with one end of the sleeve nut through a bolt, and a round sleeve is arranged at the other end of the sleeve nut; a gear shaft, planetary gears and an output shaft are arranged in the shell, one end of the gear shaft is connected with one side of the shell through a first bearing, the other end of the gear shaft is connected with the output shaft through a second bearing, gears on the gear shaft are meshed with the planetary gears, each planetary gear is connected with the output shaft through a pin shaft, and the gear shaft, the planetary gears and the output shaft form a primary planetary reduction mechanism; the output end of the output shaft is connected with the other side of the shell in a three-phase mode through a bearing, a square hole is formed in the output end of the output shaft, the square hole is matched with one end of a screw rod, a thread section is arranged on the screw rod, and the thread section is meshed with a thread inner cavity of a sleeve nut; and a mandril is arranged in the inner cavity of the threading nut corresponding to the other end of the screw rod, a through-long longitudinal groove is formed in the side surface of the mandril, and a slotted flat-end set screw is arranged on the side wall of the threading nut corresponding to the longitudinal groove of the mandril.

The head of the ejector rod is provided with a pointed head or a knife-edge-shaped head.

The inner diameter of the round sleeve is 35-50 mm, and the wall thickness of the round sleeve is 6-15 mm.

The square hole is a square hole or a hexagonal hole.

One end of the screw rod is a square rod or a hexagonal rod matched with the square hole, and the length of the square rod or the hexagonal rod is 6-20 mm less than the depth of the square hole.

The number of the planetary gears is 3-5.

One end of the gear shaft extends out of the shell, and the end part of the gear shaft is provided with a square or a hexagon matched with the ratchet wrench.

The thread section is a fine thread.

The first bearing or the second bearing is any one of deep groove ball bearings with dust covers on two sides and dust covers on one side or without dust covers.

Compared with the prior art, the utility model has the beneficial effects that:

1) adopt two kinds of speed reduction power boost mechanisms of one-level planet reduction gears and screw reduction gears to superpose mutually, can provide sufficient speed reduction power boost ratio, the instrument dead weight is lighter simultaneously, has obviously improved the efficiency of disassembling the nut in the maintenance operation.

2) Withstand the lateral margin of nut through promoting the tip ejector pin, rotatory power is applyed to the rethread spanner to easily accomplish dismantling of nut, the tip ejector pin causes partial plastic deformation to the surface of nut, therefore the nut is difficult for droing, and this instrument is applicable to daily electric power and overhauls the maintenance and uses.

3) The device can also be used for disassembling other bolts and nuts.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the figure: 1-ratchet wrench; 2-a gear shaft; 3, bearing one; 4-a planetary gear; 5-a pin shaft; 6, bearing II; 7-an output shaft; 8, bearing III; 9-a housing; 10-sheathing a nut; 11-a screw rod; 12-a top rod; 13-grooving flat-end set screws; 14-nut to be disassembled.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.

Referring to fig. 1, the portable manual labor-saving cap breaking device of the embodiment of the utility model has a schematic structural view, and comprises a shell 9 and a threading nut 10, wherein the shell 9 is connected with one end of the threading nut 10 through a bolt, and the other end of the threading nut 10 is provided with a round sleeve; a gear shaft 2, planetary gears 4 and an output shaft 7 are arranged in the shell 9, one end of the gear shaft 2 is connected with one side of the shell 9 through a first bearing 3, the other end of the gear shaft 2 is connected with the output shaft 7 through a second bearing 6, gears on the gear shaft 2 are meshed with the 3 planetary gears 4, each planetary gear 4 is connected with the output shaft 7 through a pin shaft 5, the gear shaft 2, the planetary gears 4 and the output shaft 7 form a primary planetary reduction mechanism, the gear shaft 2 is a main gear, the output shaft 7 is a planet carrier, and the output shaft 7 outputs the torque of the gear shaft 2 in a speed reduction mode; the output end of the output shaft 7 is connected with the other side of the shell 9 through a third bearing 8, the output end of the output shaft 7 is provided with a square hole, the square hole is matched with one end of the screw rod 11, the screw rod 11 is provided with a thread section, the thread section is meshed with a thread inner cavity of the sleeve nut 10, the thread section of the screw rod 11 is a fine thread, the fine thread and the sleeve nut 10 form a speed reduction lifting structure of the screw rod nut, and the fine thread has a self-locking function and can bear large axial force.

A mandril 12 is arranged in the inner cavity of the threading nut 10 corresponding to the other end of the screw rod 11, the head of the mandril 12 is provided with a pointed or knife-edge-shaped head, the side surface of the mandril 12 is provided with a through-long longitudinal groove, and the side wall of the threading nut 10 corresponding to the longitudinal groove of the mandril 12 is provided with a slotted flat-end fastening screw 13.

The inner diameter of the round sleeve is 35-50 mm, the wall thickness of the round sleeve is 6-15 mm, and nuts below M40 can be disassembled correspondingly. One end of the gear shaft 2 is provided with a square or a hexagon which is matched with the ratchet wrench 1. When an external force is applied to the ratchet wrench 1, the torque is finally converted into a push rod 12, and when the tip of the push rod is pressed against the outer wall of the nut 14 to be disassembled, the nut can be disassembled by rotating the sleeve nut 10.

In the embodiment, the square hole on the output shaft 7 can be a square hole or a hexagonal hole, and only needs to be matched with the square head at one end of the screw rod 11, the purpose is to transmit torque, the length of the square head is 6-20 mm less than the depth of the square hole, and the difference value is the maximum extension value of the ejector rod.

In the embodiment, the specification of the first bearing 3 is 61804, and the specification of the second bearing 6 is 61802, wherein the first bearing 3 is a deep groove ball bearing with dust covers on two sides, and dust pollution can be prevented.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The portable manual labor-saving cap breaking device is characterized by comprising a shell and a sleeve nut, wherein the shell is connected with one end of the sleeve nut, and the other end of the sleeve nut is provided with a round sleeve; a gear shaft, planetary gears and an output shaft are arranged in the shell, one end of the gear shaft is connected with one side of the shell through a first bearing, the other end of the gear shaft is connected with the output shaft through a second bearing, gears on the gear shaft are meshed with the planetary gears, each planetary gear is connected with the output shaft through a pin shaft, and the gear shaft, the planetary gears and the output shaft form a primary planetary reduction mechanism; the output end of the output shaft is connected with the other side of the shell in a three-phase mode through a bearing, a square hole is formed in the output end of the output shaft, the square hole is matched with one end of a screw rod, a thread section is arranged on the screw rod, and the thread section is meshed with a thread inner cavity of a sleeve nut; and a mandril is arranged in the inner cavity of the threading nut corresponding to the other end of the screw rod, a through-long longitudinal groove is formed in the side surface of the mandril, and a slotted flat-end set screw is arranged on the side wall of the threading nut corresponding to the longitudinal groove of the mandril.

2. The portable manual labor-saving cap breaker according to claim 1, wherein the head of the ejector rod is provided with a pointed or knife-edge shaped head.

3. The portable manual labor-saving cap breaker according to claim 1, wherein the inner diameter of the round sleeve is 35-50 mm, and the wall thickness of the round sleeve is 6-15 mm.

4. The portable manual labor-saving cap breaker according to claim 1, wherein the square hole is a square hole or a hexagonal hole.

5. The portable manual labor-saving cap breaking device according to claim 4, wherein one end of the screw rod is a square rod or a hexagonal rod matched with the square hole, and the length of the square rod or the hexagonal rod is 6-20 mm less than the depth of the square hole.

6. The portable manual labor-saving cap breaker according to claim 1, wherein the number of the planetary gears is 3-5.

7. The portable manual labor-saving cap breaking device according to claim 1, wherein one end of the gear shaft extends out of the shell, and the end of the gear shaft is provided with a square or a hexagon which is matched with the ratchet wrench.

8. The portable manual labor-saving cap opener according to claim 1, wherein the thread section is a fine thread.

9. The portable manual labor-saving cap breaker according to claim 1, wherein the bearing I or the bearing II is any one of deep groove ball bearings with dust covers on two sides, one side or no dust cover.