CN216306376U - Hydraulic knife striking cylinder - Google Patents
Hydraulic knife striking cylinder Download PDFInfo
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- CN216306376U CN216306376U CN202121115983.5U CN202121115983U CN216306376U CN 216306376 U CN216306376 U CN 216306376U CN 202121115983 U CN202121115983 U CN 202121115983U CN 216306376 U CN216306376 U CN 216306376U
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- piston
- end cover
- cylinder
- cylinder body
- unclamping
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Abstract
The utility model discloses a hydraulic knife striking cylinder, comprising: the knife striking cylinder comprises a knife striking cylinder body, a sealing module and a guide module; the main body of the unclamping cylinder is sleeved on a transmission shaft of an external machining center, the main body of the unclamping cylinder is concentric with the transmission shaft, an external rotary joint is arranged on one side of the main body of the unclamping cylinder, and the rotary joint is communicated with the inside of the main body of the unclamping cylinder; the sealing module is arranged inside the knife striking cylinder body and used for sealing the knife striking cylinder body; the guide module is arranged inside the unclamping cylinder main body. The hydraulic knife striking cylinder has the advantages that the rotary joint can be directly arranged on the hydraulic knife striking cylinder, the service life of the rotary joint is prolonged, the knife striking distance can be adjusted, and the hydraulic knife striking cylinder has the characteristics of convenience and quickness in use, stable structure, low use cost and low maintenance cost.
Description
Technical Field
The utility model relates to the field of knife striking cylinders, in particular to a hydraulic knife striking cylinder.
Background
Among the prior art, hydraulic pressure unclamping cylinder need spout the cover through the installation and just can install rotary joint, reduces rotary joint's life to self has the defect that the unclamping distance is unadjustable, and cost of maintenance is high.
Disclosure of Invention
According to an embodiment of the present invention, there is provided a hydraulic unclamping cylinder, including: the knife striking cylinder comprises a knife striking cylinder body, a sealing module and a guide module;
the main body of the unclamping cylinder is sleeved on a transmission shaft of an external machining center, the main body of the unclamping cylinder is concentric with the transmission shaft, an external rotary joint is arranged on one side of the main body of the unclamping cylinder, and the rotary joint is communicated with the inside of the main body of the unclamping cylinder;
the sealing module is arranged inside the knife striking cylinder body and used for sealing the knife striking cylinder body;
the guide module is arranged inside the unclamping cylinder main body.
Further, the unclamping cylinder main body includes: the device comprises a cylinder body, a first end cover, a second end cover, a piston and a cutter beating ring;
the cylinder body is sleeved on the transmission shaft and is concentric with the transmission shaft;
the piston is sleeved on the transmission shaft, the piston is movably arranged in the cylinder body, the normal section of the piston is matched with the shape of the end face of the cylinder body, and a second mounting hole is formed in the piston;
the first end cover is covered at one end of the cylinder body, the rotary joint is inserted on the first end cover and communicated with the interior of the cylinder body, the first end cover is positioned between the rotary joint and the cylinder body, a first annular lug is arranged on the inner wall of the first end cover and the inner wall of the first end cover, the shape of the first annular lug is matched with that of the second mounting hole, and the first annular lug is inserted in the second mounting hole;
the second end cover is arranged at one end of the cylinder body, the piston is positioned between the first end cover and the second end cover, and the inner wall of the second end cover is provided with an elastic piece which is connected with the piston and used for supporting the piston;
the cutter beating ring is arranged on the outer side of the second end cover, a third limiting hole is formed in the second end cover, and the piston is connected with the cutter beating ring through the third limiting hole.
Furthermore, the inner side of the second end cover is provided with a limiting block, the outer wall of the piston is provided with a limiting groove, the limiting block is matched with the limiting groove in position, and the limiting block is inserted into the limiting groove and used for radially limiting the piston.
Furthermore, the knife beating ring is connected with the piston in a threaded connection mode and used for adjusting the length of the knife beating ring protruding out of the surface of the piston.
Further, the sealing module comprises: a first seal, a second seal, a third seal, a fourth seal, a fifth seal, a sixth seal, and a seventh seal;
the first sealing element is arranged at the joint of the rotary joint and the first end cover and used for sealing the first end cover;
the second sealing element is arranged on the contact surface of the first end cover and the cylinder body and used for sealing the cylinder body;
the third sealing element is arranged at the joint of the first annular bump and the piston and used for sealing the joint of the piston and the first end cover;
the fourth sealing element is arranged on the contact surface of the cylinder body and the second end cover and used for sealing the cylinder body;
the fifth sealing element is arranged on the contact surface of the piston and the second end cover and used for sealing the joint of the piston and the second end cover;
the sixth sealing element and the seventh sealing element are sleeved on the piston, and the sixth sealing element and the seventh sealing element are positioned on the contact surface of the piston and the inner wall of the cylinder body.
Further, the guidance module includes: a first guide member and a second guide member;
the first guide piece is sleeved on the piston and is positioned on the contact surface of the piston and the cylinder body;
the second guide is arranged on the contact surface of the piston and the second end cover.
Drawings
FIG. 1 is a cross-sectional view of a hydraulic unclamping cylinder according to an embodiment of the utility model;
FIG. 2 is a detail view of a second endcap according to an embodiment of the utility model.
Detailed Description
The present invention will be further explained by describing preferred embodiments of the present invention in detail with reference to the accompanying drawings.
First, a hydraulic unclamping cylinder according to an embodiment of the present invention will be described with reference to fig. 1 to 2, which has a wide application range.
As shown in fig. 1, the hydraulic unclamping cylinder according to the embodiment of the present invention includes: the device comprises a unclamping cylinder body 1, a sealing module 2 and a guide module 3.
Specifically, as shown in fig. 1, the unclamping cylinder body 1 is sleeved on a transmission shaft 4 of an external machining center, the unclamping cylinder body 1 is concentric with the transmission shaft 4, an external rotary joint 13 is arranged on one side of the unclamping cylinder body 1, and the rotary joint 13 is communicated with the inside of the unclamping cylinder body 1.
Further, as shown in fig. 1, the unclamping cylinder main body 1 includes: the cylinder 15, the first end cover 11, the second end cover 12, the piston 16 and the cutter ring 14; the cylinder body 15 is cylindrical, the cylinder body 15 is sleeved on the transmission shaft 4, and the cylinder body 15 is concentric with the transmission shaft 4; the piston 16 is sleeved on the transmission shaft 4, the piston 16 is movably arranged inside the cylinder body 15, the normal section of the piston 16 is matched with the shape of the end face of the cylinder body 15, a second mounting hole 162 is formed in the piston 16, the second mounting hole 162 is concentric with the transmission shaft 4, a second annular bump 163 is arranged on the outer wall of the piston 16, the second annular bump 163 is inserted into a third mounting hole of the second end cover 12, and the second annular bump 163 is concentric with the transmission shaft 4; the first end cover 11 is covered at one end of the cylinder body 15, the first end cover 11 is provided with a first mounting hole 111, the first mounting hole 111 is concentric with the transmission shaft 4, the rotary joint 13 is inserted in the first mounting hole 111 and connected with the transmission shaft 4, the rotary joint 13 is communicated with the inside of the cylinder body 15, the first end cover 11 is positioned between the rotary joint 13 and the cylinder body 15, the inner walls of the first end cover 11 and the first end cover 11 are provided with a first annular bump 112, the first annular bump 112 is concentric with the transmission shaft 4, the first annular bump 112 is matched with the second mounting hole 162 in shape, the first annular bump 112 is inserted in the second mounting hole 162, the rotary joint 13 is connected with the first end cover 11 through the cooperation of a pressing sheet and a bolt, the effect of prolonging the service life of the rotary joint 13 is achieved, the damage rate, the maintenance cost and the use cost of the rotary joint 13 are reduced, the rotary joint 13 is ensured not influenced by external force, and is enabled to swing left and right, the service life of the rotary joint 13 is prolonged; the second end cover 12 is covered at one end of the cylinder body 15, the piston 16 is positioned between the first end cover 11 and the second end cover 12, the inner wall of the second end cover 12 is provided with a plurality of elastic pieces, the elastic pieces are uniformly distributed on the inner wall of the second end cover 12, the elastic pieces are compression springs, the elastic pieces are connected with the piston 16 and used for supporting the piston 16, when the piston 16 is subjected to tool striking, the elastic pieces drive the piston 16 to return to the top end, so that the oil cylinder returns to the initial position, the second end cover 12 is connected with the cylinder body 15 by using fixing bolts, the second end cover 12 is provided with a third mounting hole, the third mounting hole is concentric with the transmission shaft 4, and the shape of the third mounting hole is matched with that of the second annular bump 163; the knife ring 14 is arranged on the outer side of the second end cover 12, the knife ring 14 is fixed on the second annular bump 163 of the piston 16 through a fastening bolt, and the piston 16 drives the knife ring 14 to perform axial movement to perform knife cutting operation.
Further, as shown in fig. 1 and 2, the inner side of the second end cover 12 is provided with a limiting block 122, the outer wall of the piston 16 is provided with a limiting groove 161, the limiting block 122 is matched with the limiting groove 161 in position, and the limiting block 122 is inserted into the limiting groove 161 to radially limit the piston 16, so as to ensure that the piston 16 and the unclamping cylinder main body 1 synchronously rotate.
Further, as shown in fig. 1, the cutter ring 14 is sleeved on the transmission shaft 4, and the cutter ring 14 is connected with the piston 16 in a threaded connection manner for adjusting the length of the surface of the protruding piston 16 of the cutter ring 14, so that the use is more convenient and faster; the knife ring 14 is fixed on the piston 16 by bolts, and the knife distance is ensured to be constant.
Specifically, as shown in fig. 1, a sealing module 2 is provided inside the unclamping cylinder body 1 for sealing the unclamping cylinder body 1.
Further, as shown in fig. 1, the sealing module 2 includes: a first seal 21, a second seal 22, a third seal 23, a fourth seal 24, a fifth seal 25, a sixth seal 26, and a seventh seal 27; a first sealing member 21 is provided at a junction of the rotary joint 13 and the first end cap 11 for sealing the first end cap 11; the second sealing element 22 is arranged on the contact surface of the first end cover 11 and the cylinder body 15 and is used for sealing the hydraulic oil inside the knife cylinder body 1; a third sealing member 23 is provided at the junction of the piston 16 and the first end cap 11 for sealing the junction of the piston 16 and the first end cap 11; a fourth sealing element 24 is arranged on the contact surface of the cylinder body 15 and the second end cover 12 and is used for sealing the hydraulic oil inside the knife striking cylinder body 1; a fifth sealing element 25 is arranged on the contact surface of the piston 16 and the second end cover 12 and is used for sealing the joint of the piston 16 and the second end cover 12; the sixth sealing element 26 and the seventh sealing element 27 are sleeved on the piston 16, the sixth sealing element 26 and the seventh sealing element 27 are positioned on the contact surface of the piston 16 and the inner wall of the cylinder body 15, and the sixth sealing element 26 and the third sealing element 23 are matched to seal the upper cavity area inside the unclamping cylinder body 1; the seventh seal 27 and the fifth seal 25 cooperate to seal the lower cavity region of the unclamping cylinder body 1.
Specifically, as shown in fig. 1, the guide module 3 is provided inside the unclamping cylinder main body 1.
Further, as shown in fig. 1, the guide module 3 includes: the first guide 31 and the second guide 32; the first guide member 31 is sleeved on the piston 16, the first guide member 31 is positioned on the contact surface of the piston 16 and the cylinder 15, and the first guide member 31 is a wear-resistant ring for guiding the piston 16 during up-and-down movement; the second guide 32 is disposed on a contact surface of the second annular protrusion 163 with the third mounting hole, and the second guide 32 is a wear-resistant ring for guiding the piston 16 when moving up and down; the double-position guide device adopts a double-wear-resistant ring structure to perform double-position guide, prevents the piston 16 from deflecting during working, and prolongs the service life of the first sealing module 2 and the second sealing module 2. When the hydraulic cutter is in operation, the rotary joint 13 applies oil pressure to the piston 16, the piston 16 moves axially along the transmission shaft 4 in the cylinder 15, the cutter ring 14 is connected with the piston 16, and the cutter ring 14 moves along with the piston 16 to perform cutter movement; the knife striking ring 14 and the piston 16 are connected by screw threads and fixed by bolts, and a user can adjust the knife striking distance of the hydraulic knife striking cylinder by adjusting the installation position of the knife striking ring 14. When the knife ring 14 stops pressing the piston 16, the piston 16 is driven by the elastic member to return to the initial position.
The hydraulic unclamping cylinder according to the embodiment of the utility model is described above with reference to fig. 1-2, so that the rotary joint 13 can be directly mounted on the shell of the hydraulic unclamping cylinder, the service life of the rotary joint 13 is prolonged, the unclamping distance can be adjusted, and the hydraulic unclamping cylinder has the characteristics of convenience and rapidness in use, stable structure, low use cost and low maintenance cost.
It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the utility model. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the utility model should be determined from the following claims.
Claims (6)
1. A hydraulic unclamping cylinder, comprising: the knife striking cylinder comprises a knife striking cylinder body, a sealing module and a guide module;
the main body of the unclamping cylinder is sleeved on a transmission shaft of an external machining center, the main body of the unclamping cylinder is concentric with the transmission shaft, an external rotary joint is arranged on one side of the main body of the unclamping cylinder, and the rotary joint is communicated with the inside of the main body of the unclamping cylinder;
the sealing module is arranged inside the unclamping cylinder main body and is used for sealing the unclamping cylinder main body;
the guide module is arranged inside the unclamping cylinder main body.
2. The hydraulic unclamping cylinder as claimed in claim 1, wherein the unclamping cylinder body comprises: the device comprises a cylinder body, a first end cover, a second end cover, a piston and a cutter beating ring;
the cylinder body is sleeved on the transmission shaft and is concentric with the transmission shaft;
the piston is sleeved on the transmission shaft, the piston is movably arranged in the cylinder body, the normal section of the piston is matched with the shape of the end face of the cylinder body, and a second mounting hole is formed in the piston;
the first end cover is covered at one end of the cylinder body, the rotary joint is inserted on the first end cover, the rotary joint is communicated with the inside of the cylinder body, the first end cover is positioned between the rotary joint and the cylinder body, a first annular bump is arranged on the inner wall of the first end cover and the inner wall of the first end cover, the shape of the first annular bump is matched with that of the second mounting hole, and the first annular bump is inserted in the second mounting hole;
the second end cover is arranged at one end of the cylinder body, the piston is positioned between the first end cover and the second end cover, and the inner wall of the second end cover is provided with an elastic piece which is connected with the piston and used for supporting the piston;
the cutter beating ring is arranged on the outer side of the second end cover, a third limiting hole is formed in the second end cover, and the piston is connected with the cutter beating ring through the third limiting hole.
3. The hydraulic unclamping cylinder as claimed in claim 2, wherein a limiting block is arranged on the inner side of the second end cap, a limiting groove is arranged on the outer wall of the piston, the position of the limiting block is matched with that of the limiting groove, and the limiting block is inserted into the limiting groove and used for radially limiting the piston.
4. The hydraulic unclamping cylinder as claimed in claim 2, wherein the unclamping ring is connected to the piston by a threaded connection for adjusting the length of the unclamping ring projecting beyond the surface of the piston.
5. The hydraulic unclamping cylinder of claim 2, wherein the sealing module comprises: a first seal, a second seal, a third seal, a fourth seal, a fifth seal, a sixth seal, and a seventh seal;
the first sealing element is arranged at the joint of the rotary joint and the first end cover and is used for sealing the first end cover;
the second sealing element is arranged on the contact surface of the first end cover and the cylinder body and used for sealing the cylinder body;
the third sealing element is arranged at the joint of the first annular bump and the piston and is used for sealing the joint of the piston and the first end cover;
the fourth sealing element is arranged on the contact surface of the cylinder body and the second end cover and used for sealing the cylinder body;
the fifth sealing element is arranged on the contact surface of the piston and the second end cover and is used for sealing the joint of the piston and the second end cover;
the sixth sealing element and the seventh sealing element are sleeved on the piston, and the sixth sealing element and the seventh sealing element are positioned on a contact surface of the piston and the inner wall of the cylinder body.
6. The hydraulic unclamping cylinder of claim 2, wherein the guide module comprises: a first guide member and a second guide member;
the first guide piece is sleeved on the piston and is positioned on a contact surface of the piston and the cylinder body;
the second guide is arranged on a contact surface of the piston and the second end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121115983.5U CN216306376U (en) | 2021-05-24 | 2021-05-24 | Hydraulic knife striking cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121115983.5U CN216306376U (en) | 2021-05-24 | 2021-05-24 | Hydraulic knife striking cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216306376U true CN216306376U (en) | 2022-04-15 |
Family
ID=81080248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121115983.5U Active CN216306376U (en) | 2021-05-24 | 2021-05-24 | Hydraulic knife striking cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216306376U (en) |
-
2021
- 2021-05-24 CN CN202121115983.5U patent/CN216306376U/en active Active
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