CN218624846U - Steering oil cylinder with novel piston limiting structure - Google Patents
Steering oil cylinder with novel piston limiting structure Download PDFInfo
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- CN218624846U CN218624846U CN202223107263.1U CN202223107263U CN218624846U CN 218624846 U CN218624846 U CN 218624846U CN 202223107263 U CN202223107263 U CN 202223107263U CN 218624846 U CN218624846 U CN 218624846U
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Abstract
The utility model discloses a take novel piston limit structure's steering cylinder, including the cylinder body, install end cover, the sliding connection at the cylinder body both ends at the inboard piston rod of cylinder body, through piston limit structure install the piston at the piston rod middle part and install the support ring slot of support ring and cooperation support ring on the piston, piston limit structure includes the first steel ball spacing groove and the second steel ball spacing groove of a plurality of spacing steel balls, the spacing steel ball of cooperation, the internal surface at the piston is seted up to first steel ball spacing groove, the surface at the piston rod is seted up to second steel ball spacing groove, be equipped with the steel ball mounting hole of the first steel ball spacing groove of intercommunication and second steel ball spacing groove on the support ring slot. The utility model discloses the piston is spacing reliable and stable, simple to operate has reduced the weldment process, can stop the oil leak phenomenon that leads to because of welding defect, and welding slag etc. causes the destruction to the piston rod surface when also can avoiding the welding, more convenient maintenance, and after the vehicle uses, customer experience feels good.
Description
Technical Field
The utility model relates to a hydraulic power part especially relates to a take novel piston limit structure's steering cylinder.
Background
The steering cylinder is usually used on a carrier, a forklift and an engineering truck, a piston of the conventional steering cylinder is usually directly welded on a piston rod, welding slag and the like generated in the welding process are easy to damage the surface of the piston rod (such as chromium plating damage on the surface of the piston rod), so that the product quality is influenced, even an oil leakage phenomenon can be caused, and the maintenance cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the defect that exists among the above-mentioned prior art and not enough, provide a piston spacing reliable and stable, simple to operate has reduced the weldment process, can stop because of the oil leak phenomenon that welding defect leads to, and welding slag etc. causes the destruction to the piston rod surface when also can avoiding welding, more convenient maintenance, after the vehicle uses, the steering cylinder of taking novel piston limit structure that customer experience sense is good.
The technical scheme of the utility model: the utility model provides a take novel piston limit structure's steering cylinder, includes the cylinder body, installs end cover, the sliding connection at the cylinder body both ends at the piston rod of cylinder body inboard, through piston limit structure install at the piston at piston rod middle part and install the support ring slot of support ring and cooperation support ring on the piston, piston limit structure includes a plurality of spacing steel balls, the first steel ball spacing groove and the second steel ball spacing groove of the spacing steel ball of cooperation, the internal surface at the piston is seted up to first steel ball spacing groove, the surface at the piston rod is seted up to the second steel ball spacing groove, be equipped with the steel ball mounting hole of the first steel ball spacing groove of intercommunication and second steel ball spacing groove on the support ring slot.
The utility model discloses the piston is spacing reliable and stable, simple to operate has reduced the weldment process, can stop the oil leak phenomenon that leads to because of welding defect, and welding slag etc. causes the destruction to the piston rod surface when also can avoiding the welding, more convenient maintenance, and after the vehicle uses, customer experience feels good.
Preferably, a first O-shaped ring is arranged between the piston and the piston rod, a first O-shaped ring groove matched with the first O-shaped ring is formed in the outer surface of the piston rod, a second O-shaped ring is arranged between the cylinder body and the piston, and a second O-shaped ring groove matched with the second O-shaped ring is formed in the outer surface of the piston.
The structure ensures the sealing effect between the piston and the piston rod on one hand, and better solves the problem of internal leakage; on the other hand, the sealing effect between the piston and the cylinder body is ensured.
Preferably, the two end covers are symmetrically arranged inside two ends of the cylinder body, a third O-shaped ring and a fourth O-shaped ring are arranged between each end cover and the cylinder body, and a third O-shaped ring groove matched with the third O-shaped ring and a fourth O-shaped ring groove matched with the fourth O-shaped ring are formed in the outer surfaces of the end covers.
This kind of structure ensures the sealed effect between end cover and the cylinder body.
Preferably, a steel wire limiting retaining ring and a limiting retaining piece are further arranged between the end cover and the cylinder body, a retaining ring limiting groove matched with the steel wire limiting retaining ring is formed in the inner surface of the cylinder body, and a limiting retaining piece groove matched with the limiting retaining piece and a retaining ring limiting step matched with the steel wire limiting retaining ring are formed in the outer surface of the end cover.
The structure ensures the limiting effect between the end cover and the cylinder body.
Preferably, the outer end face of the end cover and the limiting blocking piece are exposed outside the cylinder body, one side face of the limiting blocking piece is abutted against one end face of the cylinder body, and the outer diameter of the limiting blocking piece is larger than the inner diameter of the cylinder body.
The structure facilitates the assembly between the end cover and the cylinder body.
Preferably, a dustproof ring, a first sealing ring, a fifth O-shaped ring and a second sealing ring are arranged between the piston rod and the end cover, and a dustproof ring groove matched with the dustproof ring, a first sealing ring groove matched with the first sealing ring, a fifth O-shaped ring groove matched with the fifth O-shaped ring and a second sealing ring groove matched with the second sealing ring are formed in the inner surface of the end cover.
The structure ensures the sealing effect between the piston rod and the end cover and the dustproof effect of the end cover.
Preferably, be equipped with two pairs of mounting brackets on the cylinder body, be equipped with the mounting hole on the mounting bracket, the both ends of piston rod are equipped with the engaging lug, be equipped with the connecting hole on the engaging lug.
This structure facilitates its installation on the vehicle.
The utility model has the advantages of stable and reliable piston limiting, convenient installation, reduced weldment procedures, capability of avoiding oil leakage caused by welding defects, capability of avoiding the damage to the surface of the piston rod caused by welding slag and the like during welding, more convenient maintenance and good customer experience after the use of vehicles; in addition, only steel balls need to be installed during production and assembly, welding procedures are reduced, production efficiency is improved to a certain extent, and production cost is saved.
Drawings
FIG. 1 is a schematic cut-away view of one of the angles of the present invention;
FIG. 2 is a schematic view of another embodiment of the present invention;
FIG. 3 is a schematic structural view of the assembly of the piston and the piston rod of the present invention;
FIG. 4 is an enlarged schematic view at I of FIG. 1;
in the figure, 1, a piston, 2, a cylinder body, 3, an end cover, 4, a support ring, 5, a piston rod, 6, a limiting steel ball, 7, a steel ball mounting hole, 8, a support ring groove, 9, a first steel ball limiting groove, 10, a second steel ball limiting groove, 11, a first O-shaped ring, 12, a second O-shaped ring, 13, a third O-shaped ring, 14, a fourth O-shaped ring, 15, a fifth O-shaped ring, 16, a steel wire limiting retaining ring, 17, a limiting baffle, 18, a retaining ring limiting groove, 19, a retaining ring limiting step, 20, a dust-proof ring, 21, a first sealing ring, 22, a second sealing ring, 23, a mounting frame, 24, a mounting hole, 25, a connecting lug and 26 are arranged in the cylinder body.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in fig. 1-4, a steering cylinder with a novel piston limiting structure comprises a cylinder body 2, end covers 3 installed at two ends of the cylinder body 2, a piston rod 5 slidably connected to the inner side of the cylinder body 2, a piston 1 installed at the middle of the piston rod 5 through the piston limiting structure, a support ring 4 installed on the piston 1 and a support ring groove 8 matched with the support ring 4, wherein the piston limiting structure comprises a plurality of limiting steel balls 6, a first steel ball limiting groove 9 and a second steel ball limiting groove 10 matched with the limiting steel balls 6, the first steel ball limiting groove 9 is arranged on the inner surface of the piston 1, the second steel ball limiting groove 10 is arranged on the outer surface of the piston rod 5, and a steel ball mounting hole 7 communicated with the first steel ball limiting groove 9 and the second steel ball limiting groove 10 is formed in the support ring groove 8. A first O-shaped ring 11 is arranged between the piston 1 and the piston rod 5, a first O-shaped ring groove matched with the first O-shaped ring 11 is formed in the outer surface of the piston rod 5, a second O-shaped ring 12 is arranged between the cylinder body 2 and the piston 1, and a second O-shaped ring groove matched with the second O-shaped ring 12 is formed in the outer surface of the piston 1. The two end covers are symmetrically arranged inside two ends of the cylinder body 2, a third O-shaped ring 13 and a fourth O-shaped ring 14 are arranged between each end cover and the cylinder body 2, and a third O-shaped ring groove matched with the third O-shaped ring 13 and a fourth O-shaped ring groove matched with the fourth O-shaped ring 14 are formed in the outer surface of the end cover 3. A steel wire limiting baffle ring 16 and a limiting baffle plate 17 are further arranged between the end cover 3 and the cylinder body 2, a baffle ring limiting groove 18 matched with the steel wire limiting baffle ring 16 is arranged on the inner surface of the cylinder body 2, and a limiting baffle groove matched with the limiting baffle plate 17 and a baffle ring limiting step 19 matched with the steel wire limiting baffle ring 16 are arranged on the outer surface of the end cover 3. The outer end face of the end cover 3 and the limiting blocking piece 17 are exposed outside the cylinder body 2, one side face of the limiting blocking piece 17 is abutted against one end face of the cylinder body 2, and the outer diameter of the limiting blocking piece 17 is larger than the inner diameter of the cylinder body 2. A dust ring 20, a first sealing ring 21, a fifth O-shaped ring 15 and a second sealing ring 22 are arranged between the piston rod 5 and the end cover 3, and a dust ring groove matched with the dust ring 20, a first sealing ring groove matched with the first sealing ring 21, a fifth O-shaped ring groove matched with the fifth O-shaped ring 15 and a second sealing ring groove matched with the second sealing ring 22 are arranged on the inner surface of the end cover 3. Two pairs of mounting frames 23 are arranged on the cylinder body 2, mounting holes 24 are formed in the mounting frames 23, connecting lugs 25 are arranged at two ends of the piston rod 5, and connecting holes 26 are formed in the connecting lugs 25.
The utility model discloses slot (second steel ball spacing groove) and the first O shape circle slot that accord with steel ball fitting dimension are processed to piston rod relevant position, slot (first steel ball spacing groove) that accords with steel ball fitting dimension is processed to piston hole relevant position, and at support ring slot department processing steel ball via hole (steel ball mounting hole), first O shape circle slot department of dress at the piston rod to first O shape circle of first O shape circle earlier, the piston housing is on the piston rod again, aim at the steel ball slot on piston rod and the piston (first steel ball spacing groove and second steel ball spacing groove are aimed at), pack into spacing steel ball of a certain quantity through steel ball via hole (steel ball mounting hole) on the piston between first steel ball spacing groove and the second steel ball spacing groove, spacing steel ball is filled and is loaded afterwards and is gone up the support ring.
The utility model relates to a structure is ingenious reasonable, processing is convenient, and easy installation uses after the dress is on fork truck to experience and feels good, and perfect solution the spacing problem of piston, through O shape circle sealed solution inner leakage problem, it is more convenient to maintain, and stable in structure is reliable, has avoided welding mode probably to arouse the problem originally, has practiced thrift material and cost of labor.
Claims (7)
1. The utility model provides a take novel piston limit structure's steering cylinder which characterized in that: the piston comprises a cylinder body, a piston rod, a piston, a support ring and a support ring groove, wherein the piston is arranged at the middle part of the piston rod through a piston limiting structure, the support ring is arranged on the piston, the support ring groove is matched with the support ring, the piston limiting structure comprises a plurality of limiting steel balls, a first steel ball limiting groove and a second steel ball limiting groove, the first steel ball limiting groove is arranged on the inner surface of the piston, the second steel ball limiting groove is arranged on the outer surface of the piston rod, and a steel ball mounting hole for communicating the first steel ball limiting groove with the second steel ball limiting groove is formed in the support ring groove.
2. The steering cylinder with the novel piston limiting structure according to claim 1, characterized in that: a first O-shaped ring is arranged between the piston and the piston rod, a first O-shaped ring groove matched with the first O-shaped ring is formed in the outer surface of the piston rod, a second O-shaped ring is arranged between the cylinder body and the piston, and a second O-shaped ring groove matched with the second O-shaped ring is formed in the outer surface of the piston.
3. The steering cylinder with the novel piston limiting structure according to claim 1, characterized in that: two end covers are symmetrically arranged inside two ends of the cylinder body, a third O-shaped ring and a fourth O-shaped ring are arranged between each end cover and the cylinder body, and a third O-shaped ring groove matched with the third O-shaped ring and a fourth O-shaped ring groove matched with the fourth O-shaped ring are formed in the outer surfaces of the end covers.
4. The steering oil cylinder with the novel piston limiting structure as claimed in claim 1, wherein: the cylinder body is characterized in that a steel wire limiting retaining ring and a limiting retaining piece are further arranged between the end cover and the cylinder body, a retaining ring limiting groove matched with the steel wire limiting retaining ring is formed in the inner surface of the cylinder body, and a limiting retaining piece groove matched with the limiting retaining piece and a retaining ring limiting step matched with the steel wire limiting retaining ring are formed in the outer surface of the end cover.
5. The steering oil cylinder with the novel piston limiting structure as claimed in claim 4, wherein: the outer end face of the end cover and the limiting blocking piece are exposed out of the cylinder body, one side face of the limiting blocking piece is abutted against one end face of the cylinder body, and the outer diameter of the limiting blocking piece is larger than the inner diameter of the cylinder body.
6. The steering oil cylinder with the novel piston limiting structure as claimed in claim 1, wherein: a dustproof ring, a first sealing ring, a fifth O-shaped ring and a second sealing ring are arranged between the piston rod and the end cover, and a dustproof ring groove matched with the dustproof ring, a first sealing ring groove matched with the first sealing ring, a fifth O-shaped ring groove matched with the fifth O-shaped ring and a second sealing ring groove matched with the second sealing ring are formed in the inner surface of the end cover.
7. The steering oil cylinder with the novel piston limiting structure as claimed in claim 4, wherein: the cylinder body is provided with two pairs of mounting frames, mounting holes are formed in the mounting frames, connecting lugs are arranged at two ends of the piston rod, and connecting holes are formed in the connecting lugs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223107263.1U CN218624846U (en) | 2022-11-23 | 2022-11-23 | Steering oil cylinder with novel piston limiting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223107263.1U CN218624846U (en) | 2022-11-23 | 2022-11-23 | Steering oil cylinder with novel piston limiting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218624846U true CN218624846U (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223107263.1U Active CN218624846U (en) | 2022-11-23 | 2022-11-23 | Steering oil cylinder with novel piston limiting structure |
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| CN (1) | CN218624846U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117145827A (en) * | 2023-08-24 | 2023-12-01 | 浙江匠心液压科技有限公司 | Hydraulic cylinder with color code sensor and manufacturing process of piston rod color band |
-
2022
- 2022-11-23 CN CN202223107263.1U patent/CN218624846U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117145827A (en) * | 2023-08-24 | 2023-12-01 | 浙江匠心液压科技有限公司 | Hydraulic cylinder with color code sensor and manufacturing process of piston rod color band |
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