CN213970993U

CN213970993U - Super nut dismounting tool

Info

Publication number: CN213970993U
Application number: CN202022729254.0U
Authority: CN
Inventors: 张承俊; 苏纪成; 张谷雄; 彭晶晶; 蒲攀峰; 陈晓龙; 田仁斌; 张洋
Original assignee: China Yangtze Power Co Ltd
Current assignee: China Yangtze Power Co Ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-08-17
Anticipated expiration: 2030-11-23

Abstract

The utility model provides a super nut assembly and disassembly tools, includes the carrier, the carrier be two relative open-ended rectangular frame structures, wear to be equipped with vertical transmission shaft on the top surface of carrier and the bottom surface, the transmission shaft upper end is connected with torque wrench, be located and be equipped with the driving gear on the transmission shaft in the carrier, wear to be equipped with vertical hexagon socket head wrench on the carrier of driving gear both sides, be located and be equipped with driven gear on the hexagon socket head wrench in the carrier, driven gear and driving gear meshing are equipped with ratchet in the gear rack top surface of driven gear top, hexagon socket head wrench passes ratchet and sets up. By adopting the structure, the purpose of symmetrically installing the pushing screws in the super nut can be realized, and the pushing screws on the symmetrical positions are ensured to be uniformly stressed, so that the precise installation of the whole super nut is realized.

Description

Super nut dismounting tool

Technical Field

The utility model relates to a mechanical equipment installs appurtenance, specifically is a super nut assembly and disassembly tools.

Background

The super nut has the main structure that a plurality of small screw holes are uniformly formed in the periphery of a large nut, small screws are installed on the small screw holes, the large nut can be fastened only by fastening the small screws through a common torque wrench, and the super nut is widely applied to connection of large-size threaded parts.

The mounting key point of the super nut is that each small screw rod needs to be symmetrically fastened and uniformly stressed to ensure the stress balance of the large nut, but at the present stage, a dismounting tool for the super nut is not provided, only a torque wrench is used for fastening one small screw rod and then fastening the next screw rod, the small screw rods cannot be ensured to be symmetrically and uniformly stressed, and the large nut is in a poor fastening state.

Disclosure of Invention

The utility model aims to solve the technical problem that a super nut assembly and disassembly tools is provided, can realize the top that pushes away screw symmetry installation purpose in the super nut, guarantee to be located the even atress of top that pushes away screw on the symmetric position to realize the accurate installation of whole super nut.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a super nut assembly and disassembly tools, includes the carrier, the carrier be two relative open-ended rectangular frame structures, wear to be equipped with vertical transmission shaft on the top surface of carrier and the bottom surface, the transmission shaft upper end is connected with torque wrench, be located and be equipped with the driving gear on the transmission shaft in the carrier, wear to be equipped with vertical hexagon socket head wrench on the carrier of driving gear both sides, be located and be equipped with driven gear on the hexagon socket head wrench in the carrier, driven gear and driving gear meshing are equipped with ratchet in the gear rack top surface of driven gear top, hexagon socket head wrench passes ratchet and sets up.

In a preferred scheme, the transmission ratio between the driving gear and the driven gear is 1: 2.

In a preferable scheme, hexagonal holes for the inner hexagonal wrench to pass through are formed in the middle of the ratchet mechanism and the driven gear.

In the preferred scheme, a pressing plate is sleeved on the transmission shaft part above the top surface of the gear carrier, the transmission shaft penetrates through the center of the pressing plate, and guide screws penetrate through two ends of the pressing plate.

In the preferred scheme, the upper end of the guide screw rod extends to the upper part of the top surface of the pressure plate, a spring is sleeved on the guide screw rod positioned above the top surface of the pressure plate, and the two ends of the spring are in contact connection with the head part of the guide screw rod and the top surface of the pressure plate.

In the preferred scheme, the ratchet mechanism comprises a central cylinder with a hexagonal hole in the middle, an upper cover and a lower cover are respectively movably sleeved at the upper end and the lower end of the central cylinder, a bracket is sleeved on the central cylinder and is of a ring-shaped structure with a hole, a reversing block is arranged on the top surface of the bracket, the reversing block is fixed through a fixed shaft in the central position and can rotate around the fixed shaft, a toothed ring is arranged on the outer wall of the bracket, which is located at the same horizontal height with the reversing block, and the toothed ring is in contact with the reversing block.

In the preferred scheme, a vertical reversing handle is fixed on the reversing block, and the upper end of the reversing handle extends upwards to the top surface of the upper cover;

the periphery of the gear ring is provided with a driven gear, and the reversing handle penetrates through the driven gear.

In the preferred scheme, the driven gear is a gear structure with a hole in the middle, the ratchet mechanism penetrates through a through hole in the middle of the driven gear, a reserved groove for arranging the reversing block is formed in one side of the hole in the middle of the driven gear, and a reserved hole for penetrating through the reversing handle is formed in the top surface of the reserved groove.

The utility model provides a super nut assembly and disassembly tools through adopting above-mentioned structure, has following beneficial effect:

(1) the driving gear drives the two driven gears to transmit torque at the same time, so that two pushing screws at symmetrical positions are guaranteed to be stressed at the same time and rotate synchronously, and symmetrical and uniform stress of the pushing screws is guaranteed;

(2) the transmission ratio of the driving gear to the driven gear is controlled to be 1:2, so that the torque set by the torque wrench can be basically equal to the torque borne by the small screw rod, and the super nut is ensured to be fastened according to the required accurate torque;

(3) two pushing screws are disassembled and assembled at the same time, so that the disassembly and assembly efficiency of the super nut is doubled;

(4) after the dismounting operation of the single group of pushing screws is completed, the next group of pushing screws can be dismounted only by pulling out the inner hexagonal wrench and rotating the gear carrier and then inserting the inner hexagonal wrench, so that the operation mode is quick and convenient.

Drawings

The invention will be further explained with reference to the following figures and examples:

fig. 1 is a schematic view of the overall structure of the utility model during the dismounting operation.

Fig. 2 is a schematic structural view of the ratchet mechanism of the present invention. (with driven gear)

Fig. 3 is a schematic view of the driven gear structure of the present invention.

Fig. 4 is a schematic structural view of the ratchet mechanism of the present invention. (without driving gear)

Fig. 5 is an exploded view of fig. 4 according to the present invention.

In the figure: the gear carrier 1, the transmission shaft 2, the driving gear 3, the ratchet mechanism 4, the driven gear 5, the preformed groove 501, the preformed hole 502, the hexagon socket wrench 6, the pressing plate 7, the guide screw 8, the super nut 9, the pushing screw 10, the torque wrench 11, the spring 12, the central cylinder 13, the toothed ring 131, the upper cover 14, the lower cover 15, the bracket 16, the reversing block 17 and the reversing handle 18.

Detailed Description

Example 1:

in fig. 1, a super nut assembly and disassembly tools, including carrier 1, carrier 1 be two relative open-ended rectangular frame structures, wear to be equipped with vertical transmission shaft 2 on carrier 1's the top surface and the bottom surface, 2 upper ends of transmission shaft are connected with torque wrench 11, be located and be equipped with driving gear 3 on carrier 1's the transmission shaft 2, wear to be equipped with vertical allen key 6 on the carrier 1 of driving gear 3 both sides, be located and be equipped with driven gear 5 on carrier 1's the allen key 6, driven gear 5 and the meshing of driving gear 3, be equipped with ratchet 4 in the carrier 1 top surface of driven gear 5 top, allen key 6 passes ratchet 4 and sets up.

In a preferred scheme, the transmission ratio between the driving gear 3 and the driven gear 5 is 1: 2.

In a preferable scheme, hexagonal holes for the inner hexagonal wrench 6 to pass through are formed in the middles of the ratchet mechanism 4 and the driven gear 5.

Example 2:

as shown in fig. 1, on the basis of embodiment 1, a pressing plate 7 is sleeved on a portion of the transmission shaft 2 above the top surface of the gear carrier 1, the transmission shaft 2 penetrates through the center of the pressing plate 7, and two ends of the pressing plate 7 are provided with guide screws 8 in a penetrating manner.

In the preferred scheme, the upper end of the guide screw 8 extends to the top surface of the pressure plate 7, a spring 12 is sleeved on the guide screw 8 positioned above the top surface of the pressure plate 7, and two ends of the spring 12 are in contact connection with the head of the guide screw 8 and the top surface of the pressure plate 7.

Example 3:

as shown in fig. 1, based on embodiment 1, the ratchet mechanism 4 includes a central cylinder 13 having a hexagonal hole in the middle, an upper cover 14 and a lower cover 15 are respectively movably sleeved on the upper end and the lower end of the central cylinder 13, a bracket 16 is sleeved on the central cylinder 13, the bracket 16 is a ring structure with a hole, a reversing block 17 is arranged on the top surface of the bracket 16, the reversing block 17 is fixed by a fixed shaft on the central position, the reversing block 17 can rotate around the fixed shaft, a toothed ring 131 is arranged on the outer wall of the bracket 16 at the same level as the reversing block 17, and the toothed ring 131 is in contact with the reversing block 17.

In a preferable scheme, a vertical reversing handle 18 is fixed on the reversing block 17, and the upper end of the reversing handle 18 extends upwards to the top surface of the upper cover 14;

a driven gear 5 is arranged on the periphery of the gear ring 131, and the reversing handle 18 is arranged through the driven gear 5.

In the preferred scheme, the driven gear 5 is a gear structure with a hole in the middle, the ratchet mechanism 4 penetrates through a through hole in the middle of the driven gear 5, a preformed groove 501 for arranging the reversing block 17 is arranged on one side of the hole in the middle of the driven gear 5, and a preformed hole 502 for penetrating through the reversing handle 18 is arranged on the top surface of the preformed groove 501.

Claims

1. The utility model provides a super nut assembly and disassembly tools which characterized in that: including gear carrier (1), gear carrier (1) be two relative open-sided rectangular frame structure, wear to be equipped with vertical transmission shaft (2) on the top surface of gear carrier (1) and the bottom surface, transmission shaft (2) upper end is connected with torque wrench (11), be located and be equipped with driving gear (3) on transmission shaft (2) of gear carrier (1), wear to be equipped with vertical interior hexagonal spanner (6) on gear carrier (1) of driving gear (3) both sides, be located and be equipped with driven gear (5) on interior hexagonal spanner (6) of gear carrier (1), driven gear (5) and driving gear (3) meshing, be equipped with ratchet (4) in gear carrier (1) top surface of driven gear (5) top, interior hexagonal spanner (6) pass ratchet (4) and set up.

2. The supernut removal tool of claim 1, wherein: the transmission ratio between the driving gear (3) and the driven gear (5) is 1: 2.

3. The supernut removal tool of claim 1, wherein: and hexagonal holes for the inner hexagonal wrench (6) to pass through are formed in the middle parts of the ratchet mechanism (4) and the driven gear (5).

4. The supernut removal tool of claim 1, wherein: the transmission shaft (2) part above the top surface of the gear carrier (1) is sleeved with a pressing plate (7), the transmission shaft (2) penetrates through the center of the pressing plate (7), and two ends of the pressing plate (7) are provided with guide screw rods (8) in a penetrating mode.

5. The supernut removal tool of claim 4, wherein: the upper end of the guide screw rod (8) extends to the top surface of the pressing plate (7), a spring (12) is sleeved on the guide screw rod (8) positioned above the top surface of the pressing plate (7), and two ends of the spring (12) are in contact connection with the head of the guide screw rod (8) and the top surface of the pressing plate (7).

6. The supernut removal tool of claim 1, wherein: ratchet (4) including central barrel (13) that the middle part has the hexagonal hole, both ends are movable sleeve respectively about central barrel (13) and are equipped with upper cover (14) and lower cover (15), the cover is equipped with bracket (16) on central barrel (13), bracket (16) are foraminiferous annular structure, be equipped with switching-over piece (17) on bracket (16) top surface, switching-over piece (17) are fixed and switching-over piece (17) can rotate around the fixed axle through the fixed axle that the central point put, be located same level with switching-over piece (17) on bracket (16) outer wall and be equipped with ring gear (131), ring gear (131) and switching-over piece (17) contact.

7. The supernut removal tool of claim 6, wherein: a vertical reversing handle (18) is fixed on the reversing block (17), and the upper end of the reversing handle (18) extends upwards to the top surface of the upper cover (14);

a driven gear (5) is arranged on the periphery of the gear ring (131), and the reversing handle (18) penetrates through the driven gear (5).

8. The supernut removal tool of claim 7, wherein: driven gear (5) be the foraminiferous gear structure in middle part, ratchet (4) pass driven gear (5) middle part through-hole, the middle part hole one side of driven gear (5) is equipped with reserve groove (501) that are used for setting up switching-over piece (17), be equipped with on reserve groove (501) the top surface and be used for passing reserve hole (502) of switching-over handle (18).