CN210920058U - Screw rod cooling structure - Google Patents
Screw rod cooling structure Download PDFInfo
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- CN210920058U CN210920058U CN201921551574.2U CN201921551574U CN210920058U CN 210920058 U CN210920058 U CN 210920058U CN 201921551574 U CN201921551574 U CN 201921551574U CN 210920058 U CN210920058 U CN 210920058U
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Abstract
The utility model provides a lead screw cooling structure, include: the hydraulic oil cooling device comprises a hollow screw rod provided with an oil cooling cavity, a motor base sleeved at the head end of the screw rod and a tail end base sleeved at the tail end of the screw rod; the tail end base comprises a bearing gland and a tail end sealing cover, and a first oil cavity communicated with the oil cooling cavity is formed between the tail end sealing cover and the screw rod; the tail end sealing cover is provided with an oil inlet communicated with the first oil cavity; a second bearing sleeved on the screw rod is arranged in the motor base, an oil outlet sealing sleeve is further sleeved on the screw rod, a second oil cavity is formed between the oil outlet sealing sleeve and the screw rod, framework oil seals are arranged on two sides of the inner portion of the second oil cavity, a through hole communicated with the oil cooling cavity and the second oil cavity is formed in the screw rod, and an oil outlet communicated with the second oil cavity is formed in the oil outlet sealing sleeve. The cooling oil cools the screw rod from inside to outside through the oil cooling cavity of the screw rod, so that the heat generated by friction between the screw rod and the nut is reduced, and the problem that the machining precision of the screw rod is reduced due to heated extension is effectively solved.
Description
Technical Field
The utility model relates to a lathe spare part technical field specifically is a lead screw cooling structure.
Background
The lead screw can rotate at a high speed in the machining process of the machine tool, rolling friction between the lead screw and the nut can generate a large amount of heat, so that the lead screw can be subjected to thermal deformation to be prolonged, the normal precision of the lead screw cannot be ensured, the machining precision of the machine tool is reduced, and the machining requirement of parts cannot be met.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a lead screw cooling structure which is stable and has a simple process for taking and placing glass plates.
A screw cooling structure, comprising: the hydraulic oil cooling device comprises a hollow screw rod provided with an oil cooling cavity, a motor base sleeved at the head end of the screw rod and a tail end base sleeved at the tail end of the screw rod;
the head end and the tail end of the screw rod are both provided with openings of the oil cooling cavity, and the openings of the head end are sealed by plugs;
a first bearing sleeved on the screw rod is arranged in the tail end seat;
the tail end seat comprises a bearing pressure cover and a tail end sealing cover;
the tail end sealing cover is fixedly connected with the outer ring of the first bearing, and the tail end sealing cover is connected to one side, far away from the motor base, of the bearing pressing cover;
a first oil cavity communicated with the oil cooling cavity is formed between the tail end sealing cover and the screw rod;
a skeleton oil seal is arranged on one side, close to the first bearing, in the first oil cavity and used for separating the first oil cavity from the interior of the tail end seat;
an oil seal retainer ring is arranged on one side of the framework oil seal, which is close to the first bearing;
the tail end sealing cover is provided with an oil inlet communicated with the first oil cavity;
a second bearing sleeved on the screw rod is arranged in the motor base;
an oil outlet sealing sleeve is further sleeved between the second bearing and the plug on the screw rod;
a second oil cavity is formed between the oil outlet sealing sleeve and the screw rod;
framework oil seals are arranged on two sides of the interior of the second oil cavity;
the screw rod is provided with a through hole for communicating the oil cooling cavity with the second oil cavity;
and an oil outlet communicated with the second oil cavity is formed in the oil outlet sealing sleeve.
Preferably, an oil seal baffle is arranged on the outer side of the second oil cavity far away from the second bearing.
Preferably, a first spacer bush, a second spacer bush, a first locking nut and a second locking nut are further arranged inside the tail end seat on the screw rod;
the first locking nut and the second locking nut are respectively arranged on two sides of the first bearing on the screw rod;
the first spacer bush is arranged between the first locking nut and the first bearing;
the second spacer bush is arranged between the second locking nut and the first bearing;
and the two locking nuts are used for locking so as to reduce the axial clearance between each part in the tail end seat.
Preferably, the head end and the tail end of the screw rod are both stepped shafts.
Preferably, a third spacer bush and a third locking nut are further sleeved inside the screw rod motor base;
the third locking nut is arranged on one side of the second bearing, which is far away from the tail end seat;
the third spacer bush is arranged between the second bearing and the third locking nut;
one side of the second bearing close to the tail end seat and a shaft shoulder of the stepped shaft at the head end of the screw rod are locked by the locking nut to enable the second bearing to be a third spacer bush to be pressed between the shaft shoulder of the high signal processing machine and the locking nut so as to reduce axial gaps among all parts in the motor base.
Through the technical scheme, the beneficial effects of the utility model are that:
the utility model provides a lead screw cooling structure, it has the first oil pocket of the cold chamber of intercommunication oil to open between tail end sealed lid and the lead screw, and the tail end sealed covers to open has the oil inlet of the first oil pocket of intercommunication. A second oil cavity is formed between the oil outlet sealing sleeve and the screw rod, a through hole communicated with the oil cooling cavity and the second oil cavity is formed in the screw rod, and an oil outlet communicated with the second oil cavity is formed in the oil outlet sealing sleeve. The oil inlet is connected with the external oil cooler, the oil cooler conveys cooling oil from the oil inlet to the first oil cavity and enters the hollow oil cooling cavity of the screw rod, the oil cooling cavity is sealed by a plug at the opening of the motor base, cooling flows into the second oil cavity from the through hole and flows out from the oil outlet, and the oil cooler recovers the cooling oil flowing out from the oil outlet, so that the cooling circulation purpose is achieved. The cooling oil cools the screw rod from inside to outside through the oil cooling cavity of the screw rod, so that the heat generated by friction between the screw rod and the nut is reduced, and the problem that the machining precision of the screw rod is reduced due to heated extension is effectively solved.
Drawings
Fig. 1 is a sectional view of a screw cooling structure according to an embodiment of the present invention;
fig. 2 is a view of a tail seat portion according to an embodiment of the present invention;
fig. 3 is a sectional view of a motor base according to an embodiment of the present invention;
the figure includes: a first oil chamber 1; a framework oil seal 2; an oil seal retainer ring 3; a first spacer 4; a bearing gland 5; a first bearing 6; a second spacer 7; a second lock nut 8; a nut seat 9; an oil cooling chamber 10; a second bearing 11; a third spacer 12; an oil outlet sealing sleeve 13; a second oil chamber 14; a through hole 15; a plug 16; an oil seal baffle 17; an oil outlet 18; a third lock nut 19; a motor base 20; a screw rod 21; a tail end seat 22; a first lock nut 23; a tail end sealing cover 24; an oil inlet 25.
Detailed Description
The technical solution of the present invention will be clear and fully described with reference to the accompanying drawings in the embodiments of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1, the screw cooling structure of the present embodiment includes: a hollow screw rod 21 provided with an oil cooling cavity 10, a motor base 20 sleeved on the head end of the screw rod 21, a tail end base 22 sleeved on the tail end of the screw rod 21, and a nut base 9 arranged between the tail end base 22 and the motor base 20. The head end and the tail end of the screw rod 21 are both provided with openings of the oil cooling cavity 10, and the openings of the head end are sealed through plugs 16. The tail end seat 22 is internally provided with a first bearing 6 which is sleeved on the screw rod 21. The tail end seat 22 includes a bearing gland 5 and a tail end seal cap 24. The tail end sealing cover 24 is fixedly connected with the outer ring of the first bearing 6, and the tail end sealing cover 24 is connected to one side, far away from the motor base 20, of the bearing gland 5. A first oil chamber 1 communicated with the oil cooling chamber 10 is arranged between the tail end sealing cover 24 and the screw rod 21. A framework oil seal 2 is arranged on one side of the first oil chamber 1 close to the first bearing 6 and used for separating the first oil chamber 1 from the interior of the tail end seat 22. One side of the framework oil seal 2 close to the first bearing 6 is provided with an oil seal retainer ring 3. The tail end sealing cover 24 is provided with an oil inlet 25 communicated with the first oil chamber 1. The head end of the screw rod 21 is provided with a plug 16 for sealing the opening of the oil cooling cavity 10 at the head end of the screw rod 21. The motor base 20 is provided with a second bearing 11 sleeved on the screw rod 21. An oil outlet sealing sleeve 13 is further sleeved between the second bearing 11 and the plug 16 on the screw rod 21. A second oil chamber 14 is arranged between the oil outlet sealing sleeve 13 and the screw rod 21. Both sides inside the second oil chamber 14 are provided with the skeleton oil seals 2. The screw rod 21 is provided with a through hole 15 for communicating the oil cooling cavity 10 and the second oil cavity 14. An oil outlet 18 communicated with the second oil chamber 14 is formed on the oil outlet sealing sleeve 13.
The screw rod 21 is a hollow screw rod 21, an oil cooling cavity 10 is formed in the screw rod 21, openings of the oil cooling cavity 10 are formed in the head end and the tail end of the screw rod 21, and the opening of the oil cooling cavity 10 at the tail end of the screw rod is sealed by a plug 16. A first oil cavity 1 communicated with the oil cooling cavity 10 is formed between the tail end sealing cover 24 and the screw rod 21, and an oil inlet 25 communicated with the first oil cavity 1 is formed in the tail end sealing cover 24. A second oil chamber 14 is formed between the oil outlet sealing sleeve 13 and the screw rod 21, a through hole 15 communicated with the oil cooling chamber 10 and the second oil chamber 14 is formed in the screw rod 21, and an oil outlet 18 communicated with the second oil chamber 14 is formed in the oil outlet sealing sleeve 13. The oil inlet 25 is connected with an external oil cooler, the oil cooler conveys cooling oil from the oil inlet 25 into the first oil cavity 1 and enters the hollow oil cooling cavity 10 of the screw rod 21, the opening of the oil cooling cavity 10 on the motor base 20 is sealed by the plug 16, the cooling oil flows into the second oil cavity 14 from the through hole 15 and flows out from the oil outlet 18, and the oil cooler recovers the cooling oil flowing out from the oil outlet 18, so that the cooling circulation purpose is achieved. The cooling oil cools the screw rod 21 from inside to outside through the oil cooling cavity 10 of the screw rod 21, so that heat generated by friction between the screw rod 21 and a nut is reduced, and the problem that the machining precision of the screw rod 21 is reduced due to heated extension is effectively solved.
Further, the outer side of the second oil chamber 14 away from the second bearing 11 is provided with an oil seal baffle 17. The two framework oil seals 2 seal the second oil cavity 14, the framework oil seal 2 far away from the second bearing 11 is abutted against the oil seal baffle 17, and the oil seal baffle 17 further seals the second oil cavity 14.
Furthermore, a first spacer 4, a second spacer 7, a first lock nut 23 and a second lock nut 8 are arranged inside the tail end seat 22 on the screw rod 21. The first locking nut 23 and the second locking nut 8 are respectively arranged on two sides of the first bearing 6 on the screw rod 21. The first spacer 4 is arranged between the first lock nut 23 and the first bearing 6. A second spacer 7 is provided between the second lock nut 8 and the first bearing 6. Wherein, can set up a plurality of first bearings 6, all be equipped with the spacer between first bearing 6 and the necking down nut, through two lock nut lockings, this spacer supports the inner circle of pressing the bearing to reduce the axial clearance between the inside each spare part of tail end seat 22, improve the driven precision of lead screw 21.
Further, the head end and the tail end of the screw rod 21 are both stepped shafts. Still further, a third spacer 12 and a third lock nut 19 are sleeved inside the motor base 20 on the screw rod 21. A third lock nut 19 is provided on the side of the second bearing 11 remote from the tail end seat 22. The third spacer 12 is arranged between the second bearing 11 and the third lock nut 19. One side of the second bearing 11 close to the tail end seat 22 is a shoulder of the stepped shaft at the head end of the screw rod 21, and the second bearing 11 and the third spacer 12 are pressed between the shoulder of the tera signal rod and the locking nut through locking of the locking nut so as to reduce axial clearances among all parts inside the motor base 20.
What has just been said is the preferred embodiment of the present invention, mainly explains the basic principle and advantages of the present invention, and the present invention is not limited by the above-mentioned embodiment. The described embodiments are only some embodiments of the invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Claims (5)
1. A screw cooling structure, comprising: a hollow screw rod (21) provided with an oil cooling cavity (10), a motor base (20) sleeved at the head end of the screw rod (21), and a tail end base (22) sleeved at the tail end of the screw rod (21);
the head end and the tail end of the screw rod (21) are both provided with openings of the oil cooling cavity (10), and the openings of the head end are sealed by plugs (16);
a first bearing (6) sleeved on the screw rod (21) is arranged in the tail end seat (22);
the tail end seat (22) comprises a bearing gland (5) and a tail end sealing cover (24);
the tail end sealing cover (24) is fixedly connected with the outer ring of the first bearing (6), and the tail end sealing cover (24) is connected to one side, far away from the motor base (20), of the bearing pressing cover (5);
a first oil chamber (1) communicated with the oil cooling chamber (10) is formed between the tail end sealing cover (24) and the screw rod (21);
a framework oil seal (2) is arranged on one side, close to the first bearing (6), in the first oil cavity (1) and used for separating the first oil cavity (1) from the interior of the tail end seat (22);
an oil seal retainer ring (3) is arranged on one side of the framework oil seal (2) close to the first bearing (6);
an oil inlet (25) communicated with the first oil cavity (1) is formed in the tail end sealing cover (24);
a second bearing (11) sleeved on the screw rod (21) is arranged in the motor base (20);
an oil outlet sealing sleeve (13) is further sleeved between the second bearing (11) and the plug (16) on the screw rod (21);
a second oil chamber (14) is arranged between the oil outlet sealing sleeve (13) and the screw rod (21);
framework oil seals (2) are arranged on two sides of the interior of the second oil cavity (14);
the screw rod (21) is provided with a through hole (15) for communicating the oil cooling cavity (10) and the second oil cavity (14);
an oil outlet (18) communicated with the second oil chamber (14) is formed in the oil outlet sealing sleeve (13).
2. A screw cooling arrangement according to claim 1, characterised in that the second oil chamber (14) is provided with an oil-tight baffle (17) on the outside remote from the second bearing (11).
3. The screw cooling structure according to claim 1, wherein a first spacer (4), a second spacer (7), a first locking nut (23) and a second locking nut (8) are further arranged inside the tail end seat (22) on the screw (21);
the first locking nut (23) and the second locking nut (8) are respectively arranged on two sides of the first bearing (6) on the screw rod (21);
the first spacer bush (4) is arranged between the first locking nut (23) and the first bearing (6);
the second spacer bush (7) is arranged between the second locking nut (8) and the first bearing (6);
the two locking nuts are used for locking so as to reduce the axial clearance between each part inside the tail end seat (22).
4. Screw cooling structure according to claim 1, characterized in that the head end and the tail end of the screw (21) are both stepped shafts.
5. A screw cooling structure according to claim 4, characterized in that the inside of the motor base (20) on the screw (21) is further sleeved with a third spacer (12) and a third lock nut (19);
the third locking nut (19) is arranged on one side, far away from the tail end seat (22), of the second bearing (11);
the third spacer bush (12) is arranged between the second bearing (11) and the third locking nut (19);
one side of the second bearing (11) close to the tail end seat (22) and a shaft shoulder of a stepped shaft at the head end of the screw rod (21) are locked by a locking nut, so that the second bearing (11) is pressed between the shaft shoulder and the locking nut by a third spacer bush (12) to reduce axial gaps among all parts in the motor seat (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921551574.2U CN210920058U (en) | 2019-09-18 | 2019-09-18 | Screw rod cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921551574.2U CN210920058U (en) | 2019-09-18 | 2019-09-18 | Screw rod cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210920058U true CN210920058U (en) | 2020-07-03 |
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ID=71363998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921551574.2U Active CN210920058U (en) | 2019-09-18 | 2019-09-18 | Screw rod cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210920058U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803428A (en) * | 2021-08-26 | 2021-12-17 | 胡功明 | High-precision lead screw transmission seat mechanism |
| CN113814792A (en) * | 2021-09-18 | 2021-12-21 | 肇庆市高讯数控设备有限公司 | Return type hollow lead screw cooling system |
-
2019
- 2019-09-18 CN CN201921551574.2U patent/CN210920058U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803428A (en) * | 2021-08-26 | 2021-12-17 | 胡功明 | High-precision lead screw transmission seat mechanism |
| CN113814792A (en) * | 2021-09-18 | 2021-12-21 | 肇庆市高讯数控设备有限公司 | Return type hollow lead screw cooling system |
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