CN212445032U

CN212445032U - Piston extracting tool

Info

Publication number: CN212445032U
Application number: CN202020896418.6U
Authority: CN
Inventors: 高锐; 潘石屹; 张朝栋; 彭家祥
Original assignee: Mamaya Branch Of Guizhou Beipanjiang Electric Power Co ltd
Current assignee: Mamaya Branch Of Guizhou Beipanjiang Electric Power Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-02-02
Anticipated expiration: 2030-05-25

Abstract

The utility model provides a piston extracting tool, including a supporting bench, play to rise the screw rod, rise nut and backing ring, seted up the through-hole on the supporting bench, play to rise the screw rod and pass and both ends stretch out the through-hole, play to rise the screw rod upper end and close soon and have rise the nut, play to rise and be provided with the backing ring between screw rod and the through-hole, and the upper end pad of backing ring is at a supporting bench and play to rise between the nut. The utility model provides a piston extracting tool through setting up the backing ring, has avoided lifting nut directly wearing and tearing to the through-hole drill way rotating the in-process, has prolonged brace table's life with wearing and tearing transfer to the backing ring, when wearing and tearing were serious, direct change backing ring can, practiced thrift the maintenance cost.

Description

Piston extracting tool

Technical Field

The utility model belongs to the extracting tool field, concretely relates to piston extracting tool.

Background

When the piston in the cylinder body is disassembled, the mode of manual disassembly is adopted, the coaxiality is difficult to control in the process of lifting the piston, the piston is easy to block, and the main piston and the cylinder body are collided and scratched and even damaged. Chinese patent publication No. CN205438399U provides a disc brake piston dismounting tool, which includes a support frame, a lifting assembly, a fixed disc, and at least two jaws; the lifting assembly is used for connecting the supporting frame and the fixed disc; the top end of the clamping jaw is connected with the fixed disk and can move left and right along the fixed disk, and the clamping hook at the bottom end of the clamping jaw is clamped in the groove in the inner wall of the piston; when the lifting assembly lifts, the fixed disc is driven to move upwards, the fixed disc drives the clamping jaws to move upwards, and the clamping jaws drive the pistons to separate. The utility model discloses a piston extracting tool has simple structure, the advantage that the commonality is strong, but because the lifting nut among the lifting unit directly contacts with the support frame, to some large-scale pistons, because weight is heavy, when the lifting nut rotates, it is serious with support frame through-hole drill way wearing and tearing, lead to the drill way to grind to one side, even warp, directly influence the axiality between piston and the cylinder body, lead to mainly joining in marriage piston and cylinder body collision scratch, even damage, lead to economic loss; meanwhile, when the tool is maintained, the support frame which is seriously abraded needs to be replaced in a whole, and the maintenance cost is higher.

Disclosure of Invention

For solving the technical problem, the utility model provides a piston extracting tool through setting up the backing ring, has avoided lifting nut directly wearing and tearing to the through-hole drill way rotating the in-process, transfers wearing and tearing to the backing ring on, has prolonged a supporting bench's life, when wearing and tearing are serious, direct change backing ring can, practiced thrift the maintenance cost.

The utility model discloses a following technical scheme can realize:

the utility model provides a piston extracting tool, including a supporting bench, play to rise the screw rod, play to rise nut and backing ring, the through-hole has been seted up on the supporting bench, it passes and both ends stretch out the through-hole to play to rise the screw rod, it has closed to rise the screw rod upper end soon and has played to rise the nut, it is provided with the backing ring to play to rise between screw rod and the through-hole, and the upper end pad of backing ring is at a supporting bench and play to rise between the nut, avoided playing to rise the nut and directly wearing and tearing to the through-hole drill way at the rotation in-process, transfer wearing and tearing to the backing ring on, prolong a.

The supporting table is provided with at least three supporting legs, and the supporting stability is guaranteed.

The supporting leg bottom is provided with the base, further improves support stability.

Different from the scheme, the upper end of the through hole is provided with the step hole, the ball bearing is arranged in the step hole, the backing ring is inserted into the inner ring of the ball bearing in free rotation, the upper end of the backing ring is padded between the inner ring of the ball bearing and the lifting nut, sliding friction is changed into rolling friction through the ball bearing, when the piston is disassembled, the backing ring rotates along with the lifting nut, abrasion to the backing ring is reduced or even avoided, and the service life of the disassembling tool is further prolonged.

Furthermore, the lifting nut is provided with a hand wheel which extends upwards in an inclined mode, and operation is facilitated.

Furthermore, handles which extend obliquely upwards and are bent horizontally are symmetrically arranged on two sides of the lifting nut, so that the lifting nut is convenient to operate.

The beneficial effects of the utility model reside in that:

compared with the prior art, through setting up the backing ring, avoided lifting nut directly wearing and tearing to the through-hole drill way at the rotation in-process, on transferring wearing and tearing to the backing ring, prolonged the life of a supporting bench, when wearing and tearing are serious, direct change backing ring can, practiced thrift the maintenance cost. Through setting up ball bearing, become rolling friction with sliding friction, when dismantling the piston, the backing ring rotates along with the jack-up nut, reduces or even avoids the wearing and tearing to the backing ring, further extension extracting tool's life.

Drawings

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

fig. 2 is a schematic structural diagram of a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of a third embodiment of the present invention;

fig. 4 is a schematic structural diagram of a fourth embodiment of the present invention.

In the figure: 1-supporting table, 2-lifting screw, 3-lifting nut, 4-backing ring, 5-ball bearing, 6-hand wheel, 7-handle, 11-through hole, 12-supporting leg, 13-base and 14-step hole.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

Example one

As shown in fig. 1, a piston extracting tool, including a supporting table 1, play to rise screw rod 2, play to rise nut 3 and backing ring 4, through-hole 11 has been seted up on the supporting table 1, play to rise screw rod 2 and pass and both ends stretch out through-hole 11, play to rise screw rod 2 upper end and closed soon and have played nut 3, it is provided with backing ring 4 to play to rise between screw rod 2 and the through-hole 11, and backing ring 4's upper end fills up between supporting table 1 and play to rise nut 3, it directly wears to the 11 drill ways of through-hole to have avoided playing to rise nut 3 at the rotation in-process, on shifting backing ring 4 with wearing and tearing, supporting table 1's life has been prolonged, when wearing and tearing are serious, directly change backing ring 4 can.

The support table 1 is provided with at least three support legs 12, so that the support stability is guaranteed.

The bottom of the supporting leg 12 is provided with a base 13, so that the supporting stability is further improved.

Example two

As shown in fig. 2, in addition to the structure of the first embodiment, the structure of the support table 1 is modified as follows:

the upper end of the through hole 11 is provided with a step hole 14, a ball bearing 5 is arranged in the step hole 14, the backing ring 4 is inserted into an inner ring of the ball bearing 5 which can rotate freely, the upper end of the backing ring 4 is padded between the inner ring of the ball bearing 5 and the lifting nut 3, sliding friction is changed into rolling friction through the ball bearing 5, when the piston is disassembled, the backing ring 4 rotates along with the lifting nut 3, abrasion to the backing ring 4 is reduced or even avoided, and the service life of the disassembling tool is further prolonged.

EXAMPLE III

As shown in fig. 3, the structure of the lifting nut 3 is modified as follows based on the structure of the second embodiment:

the lifting nut 3 is provided with a hand wheel 6 which extends obliquely upwards, so that the operation is convenient.

Example four

As shown in fig. 4, the structure of the lifting nut 3 is modified as follows based on the structure of the second embodiment:

and handles 7 which extend obliquely upwards and are bent horizontally are symmetrically arranged on two sides of the lifting nut 3, so that the operation is convenient.

The utility model provides a pair of piston extracting tool through setting up the backing ring, has avoided lifting nut directly wearing and tearing to the through-hole drill way rotating the in-process, has prolonged brace table's life with wearing and tearing transfer to the backing ring, when wearing and tearing were serious, direct change the backing ring can, practiced thrift the maintenance cost. Through setting up ball bearing, become rolling friction with sliding friction, when dismantling the piston, the backing ring rotates along with the jack-up nut, reduces or even avoids the wearing and tearing to the backing ring, further extension extracting tool's life.

Claims

1. A piston extracting tool which characterized in that: including brace table (1), play to rise screw rod (2), play to rise nut (3) and backing ring (4), seted up through-hole (11) on brace table (1), play to rise screw rod (2) and pass and both ends stretch out through-hole (11), play to rise screw rod (2) upper end and have closed soon and play to rise nut (3), play to rise and be provided with backing ring (4) between screw rod (2) and through-hole (11), and the upper end pad of backing ring (4) is between brace table (1) and play to rise nut (3).

2. A piston removal tool as claimed in claim 1, wherein: the support table (1) is provided with at least three support legs (12).

3. A piston removal tool as claimed in claim 2, wherein: the bottom of the supporting leg (12) is provided with a base (13).

4. A piston removal tool as claimed in claim 1, wherein: the lifting nut is characterized in that a step hole (14) is formed in the upper end of the through hole (11), a ball bearing (5) is arranged in the step hole (14), the backing ring (4) is inserted into an inner ring of the ball bearing (5) which freely rotates, and the upper end of the backing ring (4) is cushioned between the inner ring of the ball bearing (5) and the lifting nut (3).

5. A piston removal tool as claimed in claim 1, wherein: the lifting nut (3) is provided with a hand wheel (6) which extends obliquely upwards.

6. A piston removal tool as claimed in claim 1, wherein: handles (7) which extend upwards obliquely and are bent horizontally are symmetrically arranged on two sides of the lifting nut (3).