CN215908176U - Double-acting feeding oil cylinder of digging and anchoring machine - Google Patents
Double-acting feeding oil cylinder of digging and anchoring machine Download PDFInfo
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- CN215908176U CN215908176U CN202122398151.5U CN202122398151U CN215908176U CN 215908176 U CN215908176 U CN 215908176U CN 202122398151 U CN202122398151 U CN 202122398151U CN 215908176 U CN215908176 U CN 215908176U
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Abstract
The utility model provides a double-acting feeding oil cylinder of an excavator and anchor machine, which comprises an installation sleeve, wherein one side of the installation sleeve is provided with a first piston rod which moves relative to the installation sleeve, a first cylinder barrel is arranged outside the first piston rod, the first piston rod reciprocates in the first cylinder barrel, one end of the installation sleeve is fixedly connected with a second piston rod, the first cylinder barrel slides in the second piston rod, the outer side of the second piston rod is provided with a second cylinder barrel, the second cylinder barrel is sleeved on the second piston rod to reciprocate, the second piston rod is fixedly connected with the installation sleeve and is installed in a large oil cylinder through a small oil cylinder, the right end of the piston rod on the large oil cylinder is fixed with the excavator and anchor machine structure, and oil enters and exits from the left end of the piston rod. The piston of the large oil cylinder is fixed on the piston rod, the piston rod of the large oil cylinder is static, the cylinder barrel moves relatively, and the piston rod of the small oil cylinder extends and retracts, so that the requirements of two strokes of the feeding oil cylinder are met. The feeding oil cylinder not only improves the working efficiency, but also reduces the structural space of the digging and anchoring machine, so that the mounting structure is simpler and more convenient, and has popularization value.
Description
Technical Field
The utility model relates to the field of driving and anchoring machines, in particular to a double-acting feeding oil cylinder of a driving and anchoring machine.
Background
With the development of industrial automation, the use of sealing products on the industrial automatic fluid power transmission plays a key role, hydraulic energy is converted into mechanical energy in a hydraulic oil cylinder device to realize linear reciprocating motion, and the oil cylinder is a reciprocating power part on an anchor driving machine. The feeding oil cylinder on the digging and anchoring machine is split and is divided into a long feeding oil cylinder and a short feeding oil cylinder, the two oil cylinders are connected in series in the prior art, the installation structure has large outline dimension and is complicated to install under the condition of limited installation space, and the two oil cylinders are connected in series and have poor stability and low working efficiency. For this reason, a double-acting feeding cylinder of the excavator is proposed to solve the problems.
Chinese patent document CN104708526A describes a double-feed cylinder for honing machine, which comprises a small cylinder and a large cylinder, wherein the front end of the small cylinder is matched with the bottom of the large cylinder, an outer push rod corresponding to a rough expanding rod of a honing head is installed in the large cylinder, an inner push rod corresponding to a fine expanding rod of the honing head is installed in the small cylinder, and the inner push rod is located in the outer push rod. The utility model simplifies the processing procedure and improves the working efficiency. However, when oil enters and exits from the left end of the piston rod on the large oil cylinder of the device, the large oil cylinder and the small oil cylinder have the same movement direction and reciprocate towards the same direction, so that the cylinder barrel of the large oil cylinder cannot be static, and the large oil cylinder and the small oil cylinder move relatively to meet the requirements of two strokes of the feeding oil cylinder. The use is defective and needs improvement.
SUMMERY OF THE UTILITY MODEL
The utility model provides a double-acting feeding oil cylinder of an anchor driving machine, which solves the problems that the mounting structure has large overall dimension, the mounting is complicated under the condition of limited mounting space, the serial connection of a long feeding oil cylinder and a short feeding oil cylinder has poor use stability and the working efficiency is low.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: the double-acting feeding oil cylinder of the tunneling and anchoring machine comprises an installation sleeve, wherein a first piston rod which moves relative to the installation sleeve is arranged on one side of the installation sleeve, a first cylinder barrel is arranged outside the first piston rod, the first piston rod reciprocates in the first cylinder barrel, one end of the installation sleeve is fixedly connected with a second piston rod, the first cylinder barrel slides in the second piston rod, a second cylinder barrel is arranged outside the second piston rod, the second cylinder barrel is sleeved on the second piston rod to reciprocate, and the second piston rod is fixedly connected with the installation sleeve.
In the preferred scheme, an oil inlet is formed in the first piston rod and is located at the port of the first piston rod.
In the preferred scheme, a first piston is arranged between the mounting sleeve and the first piston rod, one end of the first piston rod is abutted against and mounted in the first piston and fixedly connected with the first piston, the outer wall of the first piston is abutted against and does reciprocating motion in the first cylinder barrel, and a cavity is formed between the first piston and the mounting sleeve.
In the preferred scheme, a hollow spacer bush is arranged at one end of the first cylinder barrel, and a rod head is arranged at one end of the spacer bush.
In the preferred scheme, the inner walls of the rod head and the spacer bush are abutted against the first piston rod, and the outer walls of the rod head and the spacer bush are abutted against the second piston rod.
In a preferred scheme, a second piston is arranged between the second cylinder barrel and the second piston rod, and the second piston is fixedly connected with the second piston rod.
In a preferred scheme, clamping keys are arranged on two sides of the second piston and inserted into the second piston rod.
In the preferred scheme, a second guide sleeve is arranged between the second cylinder and the second piston rod, one end of the second cylinder is fixedly connected with the second guide sleeve, the inner wall of the second guide sleeve abuts against the second piston rod to slide in a reciprocating mode, and a first guide sleeve is arranged at the other end of the second cylinder.
In the preferred scheme, be equipped with seal assembly between pole head and the first piston rod, seal assembly includes dust ring, Yx type sealing washer and O type sealing washer, still is equipped with a plurality of guide rings between pole head and the first piston rod.
The utility model has the beneficial effects that: the small oil cylinder is arranged inside the large oil cylinder, the right end of a piston rod on the large oil cylinder is fixed with the driving and anchoring machine structure, and oil liquid enters and exits from the left end. The piston of the large oil cylinder is fixed on the piston rod, the piston rod of the large oil cylinder is static, the cylinder barrel moves relatively, and the piston rod of the small oil cylinder extends and retracts, so that the requirements of two strokes of the feeding oil cylinder are met. The feeding oil cylinder not only improves the working efficiency, but also reduces the structural space of the driving and anchoring machine, so that the mounting structure is simpler and more convenient, external pollutants are prevented from entering the oil cylinder by using the sealing assembly, and the feeding oil cylinder is simultaneously used for the first piston rod and the rod head to guide the piston to do linear motion, so that the metal-metal contact is prevented, the service life of equipment is prolonged, and the feeding oil cylinder has greater popularization value.
Drawings
The utility model is further explained below with reference to the figures and examples;
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of the utility model as extended;
FIG. 3 is a cross-sectional view of the utility model in an extended state;
in the figure: a first piston rod 1; an oil inlet 101; a club head 2; a spacer 3; a first cylinder 4; a first guide sleeve 5; a first piston 6; a card key 7; a second piston rod 8; a second piston 9; a second cylinder 10; a second guide sleeve 11; a mounting sleeve 12; a seal assembly 13; a dust ring 1301; a Yx-seal 1302; an O-ring 1303; a guide ring 14.
Detailed Description
Example 1:
as shown in fig. 1-3, the double-acting feed cylinder of the excavator comprises an installation sleeve 12, a first piston rod 1 which moves relative to the installation sleeve 12 is arranged on one side of the installation sleeve 12, a first cylinder barrel 4 is arranged outside the first piston rod 1, the first piston rod 1 reciprocates in the first cylinder barrel 4, one end of the installation sleeve 12 is fixedly connected with a second piston rod 8, the first cylinder barrel 4 slides in the second piston rod 8, a second cylinder barrel 10 is arranged outside the second piston rod 8, the second cylinder barrel 10 is sleeved on the second piston rod 8 and reciprocates, and the second piston rod 8 is fixedly connected with the installation sleeve 12. From this structure, big hydro-cylinder includes first uide bushing 5, card key 7, second piston rod 8, second piston 9 and second cylinder 10, and little hydro-cylinder includes first piston rod 1, pole head 2, spacer 3, first cylinder 4 and first piston 6. An oil pipe is welded in an inner hole of the first piston rod 1, rodless cavity oil is introduced into the oil pipe, a part of the oil enters the oil pipe to push the first piston 6, the first piston rod 1 moves leftwards, a part of the oil enters a right cavity of the second piston 9, the second cylinder 10 of the large oil cylinder moves rightwards, the second cylinder 10 and the first piston rod 1 extend out in the opposite direction, and the double-acting feeding oil cylinder of the tunneling and anchoring machine extends to the longest state.
When oil enters the left side of the first piston 6 with the rod cavity of the first piston rod 1 from the cavity formed by the outer wall of the oil pipe and the inner hole of the first piston rod 1, the first piston rod 1 moves rightwards to retract, meanwhile, a part of oil enters the left cavity of the second piston 9 of the large oil cylinder, the second cylinder 10 of the large oil cylinder moves leftwards, and the second cylinder 10 and the first piston rod 1 retract reversely and simultaneously, so that the oil completely retracts. The double-acting feeding oil cylinder saves the structural space of the digging and anchoring machine, enables the installation structure to be simpler and more convenient, and improves the working efficiency.
In a preferable scheme, an oil inlet 101 is formed in the first piston rod 1, and the oil inlet 101 is located at a port of the first piston rod 1. With the structure, the oil inlet 101 is used for oil to enter the double-acting feeding oil cylinder of the excavator so that the oil cylinder can work normally.
In the preferred scheme, a first piston 6 is arranged between the mounting sleeve 12 and the first piston rod 1, one end of the first piston rod 1 is abutted and mounted in the first piston 6 and fixedly connected with the first piston 6, the outer wall of the first piston 6 is abutted and mounted in the first cylinder 4 to reciprocate, and a cavity is formed between the first piston 6 and the mounting sleeve 12. With the structure, oil enters the oil pipe to push the first piston 6, so that the first piston rod 1 moves leftwards, and when the oil enters the rod cavity of the first piston rod 1, the oil makes the first piston rod 1 move rightwards, so that the first piston rod 1 can reciprocate in the first cylinder barrel 4.
In a preferred scheme, one end of the first cylinder 4 is provided with a hollow spacer 3, and one end of the spacer 3 is provided with the club head 2.
In a preferred scheme, the inner walls of the club head 2 and the spacer 3 are abutted against the first piston rod 1, and the outer walls of the club head 2 and the spacer 3 are abutted against the second piston rod 8. From this structure, first piston rod 1 can slide relatively in club head 2 and spacer 3, and the outer wall of first piston rod 1 cooperatees with the outer wall of club head 2, and club head 2 plays the supporting role of second piston rod 8 and first piston rod 1, is convenient for first piston rod 1 and second piston rod 8 to make relative motion in the horizontal direction.
In a preferred scheme, a second piston 9 is arranged between the second cylinder 10 and the second piston rod 8, and the second piston 9 is fixedly connected with the second piston rod 8. With the structure, when oil enters the left side of the first piston 6 with the rod cavity of the first piston rod 1 from the cavity formed by the outer wall of the oil pipe and the inner hole of the first piston rod 1, the first piston rod 1 moves rightwards to retract, meanwhile, a part of oil enters the left cavity of the second piston 9 of the large oil cylinder, the second cylinder 10 of the large oil cylinder moves leftwards, and the second cylinder 10 and the first piston rod 1 retract reversely and simultaneously, so that the oil completely retracts.
In a preferred scheme, clamping keys 7 are arranged on two sides of the second piston 9, and the clamping keys 7 are inserted into the second piston rod 8. With this structure, the catch 7 fixes the second piston 9 to the second piston rod 8, so that the second cylinder 10 can slide relative to the second piston rod 8.
In the preferred scheme, a second guide sleeve 11 is arranged between a second cylinder 10 and a second piston rod 8, one end of the second cylinder 10 is fixedly connected with the second guide sleeve 11, the inner wall of the second guide sleeve 11 abuts against the second piston rod 8 to slide in a reciprocating mode, and a first guide sleeve 5 is arranged at the other end of the second cylinder 10. With the structure, the first guide sleeve 5 and the second guide sleeve 11 can form a cavity with the second piston rod 8 respectively, so that oil can enter the cavity, and the second cylinder barrel 10 is pushed to reciprocate relative to the second piston rod 8. While the first and second guide sleeves 5 and 11 can play a role of supporting the second cylinder 10.
In a preferred scheme, a sealing assembly 13 is arranged between the club head 2 and the first piston rod 1, the sealing assembly 13 comprises a dustproof ring 1301, a Yx-shaped sealing ring 1302 and an O-shaped sealing ring 1303, and a plurality of guide rings 14 are further arranged between the club head 2 and the first piston rod 1. By the structure, external pollutants are prevented from entering the oil cylinder, the first piston rod 1 and the rod head 2 are used for guiding the piston to do linear motion, metal and metal contact is prevented, and the service life of the equipment is prolonged.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the utility model.
Claims (9)
1. The double-acting feeding oil cylinder of the digging and anchoring machine is characterized in that: including installation cover (12), installation cover (12) one side is equipped with first piston rod (1) of relative installation cover (12) motion, first piston rod (1) is equipped with first cylinder (4) outward, first piston rod (1) is reciprocating motion in first cylinder (4), installation cover (12) one end and second piston rod (8) fixed connection, first cylinder (4) slide in second piston rod (8), second piston rod (8) outside is equipped with second cylinder (10), reciprocating motion is gone up in second piston rod (8) to second cylinder (10) cover, second piston rod (8) and installation cover (12) fixed connection.
2. The tunneling and anchoring machine double-acting feeding cylinder as claimed in claim 1, wherein: an oil inlet (101) is formed in the first piston rod (1), and the oil inlet (101) is located at the port of the first piston rod (1).
3. The tunneling and anchoring machine double-acting feeding cylinder as claimed in claim 1, wherein: be equipped with first piston (6) between installation cover (12) and first piston rod (1), first piston rod (1) one end is supported and is leaned on and install in first piston (6) and first piston (6) fixed connection, and first piston (6) outer wall is supported and is made reciprocating motion in first cylinder (4), forms the cavity between first piston (6) and installation cover (12).
4. The tunneling and anchoring machine double-acting feeding cylinder as claimed in claim 1, wherein: one end of the first cylinder barrel (4) is provided with a hollow spacer bush (3), and one end of the spacer bush (3) is provided with a rod head (2).
5. The tunneling and anchoring machine double-acting feeding cylinder as claimed in claim 1, wherein: the inner walls of the rod head (2) and the spacer bush (3) are abutted against the first piston rod (1), and the outer walls of the rod head (2) and the spacer bush (3) are abutted against the second piston rod (8).
6. The tunneling and anchoring machine double-acting feeding cylinder as claimed in claim 1, wherein: a second piston (9) is arranged between the second cylinder (10) and the second piston rod (8), and the second piston (9) is fixedly connected with the second piston rod (8).
7. The tunneling and anchoring machine double-acting feeding cylinder as claimed in claim 6, wherein: clamping keys (7) are arranged on two sides of the second piston (9), and the clamping keys (7) are inserted into the second piston rod (8).
8. The tunneling and anchoring machine double-acting feeding cylinder as claimed in claim 1, wherein: a second guide sleeve (11) is arranged between the second cylinder barrel (10) and the second piston rod (8), one end of the second cylinder barrel (10) is fixedly connected with the second guide sleeve (11), the inner wall of the second guide sleeve (11) is abutted against the second piston rod (8) to slide in a reciprocating mode, and a first guide sleeve (5) is arranged at the other end of the second cylinder barrel (10).
9. The tunneling and anchoring machine double-acting feeding cylinder as claimed in claim 1, wherein: a sealing assembly (13) is arranged between the club head (2) and the first piston rod (1), the sealing assembly (13) comprises a dustproof ring (1301), a Yx-shaped sealing ring (1302) and an O-shaped sealing ring (1303), and a plurality of guide rings (14) are further arranged between the club head (2) and the first piston rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122398151.5U CN215908176U (en) | 2021-09-30 | 2021-09-30 | Double-acting feeding oil cylinder of digging and anchoring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122398151.5U CN215908176U (en) | 2021-09-30 | 2021-09-30 | Double-acting feeding oil cylinder of digging and anchoring machine |
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| Publication Number | Publication Date |
|---|---|
| CN215908176U true CN215908176U (en) | 2022-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122398151.5U Active CN215908176U (en) | 2021-09-30 | 2021-09-30 | Double-acting feeding oil cylinder of digging and anchoring machine |
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| CN (1) | CN215908176U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864285A (en) * | 2021-09-30 | 2021-12-31 | 中船重工中南装备有限责任公司 | Double-acting feeding oil cylinder of digging and anchoring machine |
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2021
- 2021-09-30 CN CN202122398151.5U patent/CN215908176U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864285A (en) * | 2021-09-30 | 2021-12-31 | 中船重工中南装备有限责任公司 | Double-acting feeding oil cylinder of digging and anchoring machine |
| CN113864285B (en) * | 2021-09-30 | 2024-06-28 | 中船重工中南装备有限责任公司 | Double-acting feeding oil cylinder of tunneling and anchoring machine |
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