CN203185232U - Drive type hydraulic wrench - Google Patents
Drive type hydraulic wrench Download PDFInfo
- Publication number
- CN203185232U CN203185232U CN 201320147480 CN201320147480U CN203185232U CN 203185232 U CN203185232 U CN 203185232U CN 201320147480 CN201320147480 CN 201320147480 CN 201320147480 U CN201320147480 U CN 201320147480U CN 203185232 U CN203185232 U CN 203185232U
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- CN
- China
- Prior art keywords
- piston
- piston rod
- type hydraulic
- force transmitting
- transmitting board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a drive type hydraulic wrench which comprises a force transmission plate, a piston rod and a piston. The piston is divided into a left section and a right section, wherein a taper hole is formed inside the left section, a spherical hole is formed inside the right section, a ball portion at the right end of the piston rod is matched with the spherical hole of the piston, the left section is placed in a taper hole of the piston rod, the spherical surface of the left end of the piston rod is connected with the force transmission plate, a clamp ring is arranged in an annular groove at the connecting position of the spherical hole of the piston and the taper hole and is sleeved at the ball position of the right end of the piston rod. An existing piston and a taper sleeve are integrated to form an integral piston part, and the clamp ring groove is designed at the ball position. The drive type hydraulic wrench has the advantages that the strength of the piston is improved, and the piston does not easily deform; the sealing performance is improved, and threaded loosening and damage of an O-shaped seal ring are not caused, so that hydraulic oil leakage does not occur.
Description
Technical field
The utility model relates to hydraulic spanner, especially a kind of drive-type hydraulic spanner.
Background technology
The drive-type hydraulic spanner is a kind of hydraulic tool of pretension or dismounting high-strength bolt nut, and it is widely used in plant equipment and the facility of industries such as metallurgy, electric power, chemical industry, machinery, communication.Its feature is: adopt space flight aluminum titanium alloy and superstrength alloy material, and the intensity height, in light weight; Torque precision adapts to the restriction of various small spaces up to ± 3% in the work; 360 ° * 180 ° swivel joint design operations are convenient.But existing drive-type hydraulic spanner has following shortcoming: one, piston 6 seals (as shown in Figure 3) with tapered sleeve 7 by being threaded and passing through O RunddichtringO 8, because tapered sleeve 7 moves back and forth, after work a period of time, piston 6 can take place loosening with being threaded of tapered sleeve 7, the 8 meeting blow-by of O RunddichtringO, cause hydraulic oil to reveal, pumping plant is not shown pressure; Two, force transmitting board 9 is inserted in the opening of piston rod 10 (as shown in Figure 4), and it is fastening by bearing pin 11, wherein the aperture modifier treatment of piston rod 10 is yielding, bearing pin 11 easily deforms as the stressed part of transmission or ruptures, and bearing pin 11 produces component swings back and forth force transmitting board, its position is non-adjustable in addition, thereby make force transmitting board 9 unbalance loading occur hydraulic spanner is damaged.
Summary of the invention
Problem to be solved in the utility model provides a kind of novel drive-type hydraulic spanner, and the intensity of its piston is good, not yielding, sealing property is high.Simultaneously, spanner of the present utility model unbalance loading can not occur, and force transmitting board and piston rod junction are not yielding.
A kind of drive-type hydraulic spanner of the utility model, it comprises force transmitting board, piston rod, piston, about piston is divided into two sections, section the inside, a left side is taper hole, and right section the inside is spherical pore, and the bulb part of piston rod right-hand member matches with the spherical pore of piston, its left side section is placed in the taper hole of piston rod, its left end sphere links to each other with force transmitting board, is provided with snap ring in the cannelure of the spherical pore of piston and taper hole junction, and snap ring is enclosed within the bulb place of piston rod right-hand member.
The utility model is by becoming one-piece parts of piston, bulb place to be designed to annular groove two part integrated designs of existing piston and tapered sleeve, and its advantage is: the intensity of piston improves, and is not yielding; Simultaneously, sealing improves, and thread looseness and O RunddichtringO can not occur and damage, and the situation that hydraulic oil is revealed therefore can not occur.
As a kind of improved procedure of the present utility model, be processed with the sphere of indent on the force transmitting board side relative with piston rod, the left end sphere of piston rod fits tightly with it, and both are linked to be an integral body by resilient key.Its advantage is: 1, force transmitting board adopts the sphere contact to be connected with piston rod, be inserted in the opening of piston rod than original force transmitting board and by the fastening structure of bearing pin, its bulk strength increases, and avoided force transmitting board, piston rod, bearing pin three in the existing structure to occur easily being out of shape and the problem of force transmitting board unbalance loading; 2, resilient key does not stress when piston rod pushes away forward, can not rupture for a short time because of stressed when pulling back at piston rod; 3, the tapering of piston rod drives the force transmitting board motion by sphere, unbalance loading can not occur, and drive disk assembly is damaged.
Description of drawings
Fig. 1 is the front view of the utility model drive-type hydraulic spanner;
Fig. 2 is the enlarged drawing of force transmitting board and piston rod connecting portion in the utility model spanner;
Fig. 3 is the front view of existing drive-type hydraulic spanner;
Fig. 4 is the enlarged drawing of force transmitting board and piston rod connecting portion in the existing spanner.
The specific embodiment
From Fig. 1, Fig. 2 as can be known, a kind of drive-type hydraulic spanner of the utility model, it comprises force transmitting board 1, piston rod 3, piston 4, it is characterized in that: about piston 4 is divided into two sections, section the inside, a left side is taper hole, right section the inside is spherical pore, the bulb part of piston rod 3 right-hand members matches with the spherical pore of piston 4, its left side section is placed in the taper hole of piston rod 4, its left end sphere links to each other with force transmitting board 1, be provided with snap ring 5 in the cannelure of the spherical pore of piston 4 and taper hole junction, snap ring 5 is enclosed within the bulb place of piston rod 3 right-hand members.
The utility model is by becoming one-piece parts of piston, bulb place to be designed to annular groove two part integrated designs of existing piston and tapered sleeve, and its advantage is: the intensity of piston improves, and is not yielding; Simultaneously, sealing improves, and thread looseness and O RunddichtringO can not occur and damage, and the situation that hydraulic oil is revealed therefore can not occur.
As a kind of improved procedure of the present utility model, be processed with the sphere of indent on the force transmitting board side relative with piston rod, the left end sphere of piston rod fits tightly with it, and both are linked to be an integral body by resilient key.Its advantage is: 1, force transmitting board adopts the sphere contact to be connected with piston rod, be inserted in the opening of piston rod than original force transmitting board and by the fastening structure of bearing pin, its bulk strength increases, and avoided force transmitting board, piston rod, bearing pin three in the existing structure to occur easily being out of shape and the problem of force transmitting board unbalance loading; 2, resilient key does not stress when piston rod pushes away forward, can not rupture for a short time because of stressed when pulling back at piston rod; 3, the tapering of piston rod drives the force transmitting board motion by sphere, unbalance loading can not occur, and drive disk assembly is damaged.
Claims (2)
1. drive-type hydraulic spanner, it comprises force transmitting board (1), piston rod (3), piston (4), it is characterized in that: about piston (4) is divided into two sections, section the inside, a left side is taper hole, right section the inside is spherical pore, the bulb part of piston rod (3) right-hand member matches with the spherical pore of piston (4), its left side section is placed in the taper hole of piston rod (4), its left end sphere links to each other with force transmitting board (1), be provided with snap ring (5) in the spherical pore of piston (4) and the cannelure of taper hole junction, snap ring (5) is enclosed within the bulb place of piston rod (3) right-hand member.
2. drive-type hydraulic spanner according to claim 1, it is characterized in that: the sphere that is processed with indent on force transmitting board (1) side relative with piston rod (3), the sphere of piston rod (3) left end fits tightly with it, and both are linked to be an integral body by resilient key (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320147480 CN203185232U (en) | 2013-03-28 | 2013-03-28 | Drive type hydraulic wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320147480 CN203185232U (en) | 2013-03-28 | 2013-03-28 | Drive type hydraulic wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203185232U true CN203185232U (en) | 2013-09-11 |
Family
ID=49102123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320147480 Expired - Fee Related CN203185232U (en) | 2013-03-28 | 2013-03-28 | Drive type hydraulic wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203185232U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192341A (en) * | 2013-03-28 | 2013-07-10 | 马鞍山市三江机械有限公司 | Driving type hydraulic wrench |
-
2013
- 2013-03-28 CN CN 201320147480 patent/CN203185232U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192341A (en) * | 2013-03-28 | 2013-07-10 | 马鞍山市三江机械有限公司 | Driving type hydraulic wrench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20160328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |