CN216951577U

CN216951577U - Lead screw shaft head sealing structure

Info

Publication number: CN216951577U
Application number: CN202220458876.0U
Authority: CN
Inventors: 马霄旭
Original assignee: Liaoning Wanlin Technology Co ltd
Current assignee: Liaoning Wanlin Technology Co ltd
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-07-12
Anticipated expiration: 2032-03-04

Abstract

The utility model discloses a lead screw spindle head sealing structure, which relates to the technical field of lead screw spindle head sealing and comprises an oil groove, lubricating oil is contained in the oil groove, a fixed sleeve is fixedly connected outside one side wall of the oil groove, a ball screw is rotatably connected in the fixed sleeve, the ball screw penetrates through one side wall of the oil groove and is arranged in the lubricating oil, a first mounting groove is formed in the fixed sleeve, a plurality of bearings are fixedly connected in the first mounting groove, the ball screw is fixedly connected in a plurality of inner rings of the bearings, one end of the fixed sleeve is fixedly connected with a press ring, one end of the press ring is inserted in the first mounting groove and tightly abuts against one end of the outermost side of the bearings, the device prevents the lubricating oil from leaking from the fixed sleeve through a framework oil seal, the lubricating oil can be prevented from leaking from the fixed sleeve through a seal ring, dust can be prevented from entering the framework oil seal through a dust-proof ring, the oil leakage phenomenon is reduced.

Description

Lead screw shaft head sealing structure

Technical Field

The utility model relates to the technical field of lead screw shaft head sealing, in particular to a lead screw shaft head sealing structure.

Background

The shaft head of input and output shafts of the reduction gearbox of the existing water cutting machine is sealed by adopting an oil seal, but the traditional oil seal has poor sealing effect, oil leakage is easy to occur, pollution is caused, the service life of a rotating shaft is influenced, and mechanical accidents are easy to occur, so that the improvement of the sealing performance of the shaft head is a technical problem to be solved by technicians in the field.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a lead screw shaft head sealing structure, which solves the technical problem of poor sealing effect of the prior device.

In order to achieve the purpose, the utility model is realized by the following technical scheme: lead screw spindle nose seal structure, including the oil groove, the splendid attire has lubricating oil in the oil groove, the outer rigid coupling of oil groove lateral wall has fixed cover, the fixed cover internal rotation is connected with ball, ball runs through oil groove lateral wall is arranged in the lubricating oil, fixed cover is seted up first mounting groove in, the rigid coupling has a plurality of bearings in the first mounting groove, ball rigid coupling in a plurality of in the bearing inner circle, fixed cover one end rigid coupling has the clamping ring, just clamping ring one end cartridge in just support tightly in a plurality of in the first mounting groove bearing outside one end, the clamping ring is located the second mounting groove has been seted up to one end in the first mounting groove, install the skeleton oil blanket in the second mounting groove, the skeleton oil blanket inner circle with ball contacts.

Preferably, the ball screw is located one end of the outer side of the pressing ring is provided with a thread groove, the thread groove is connected with a pair of screw nuts in a rotating mode, and a locking plate is installed between the screw nuts.

Preferably, a groove is formed in the inner ring at the other end of the compression ring, and a dustproof ring is installed in the groove.

Preferably, a sealing ring is arranged between the fixed sleeve and the oil groove.

Preferably, the fixed sleeve is fixedly connected with the oil grooves and the pressure ring is fixedly connected with the fixed sleeve through bolts.

Preferably, the number of the plurality of bearings is two.

Advantageous effects

The utility model provides a lead screw spindle head sealing structure which has the following beneficial effects that a ball screw can be fixed in a fixed sleeve through a plurality of bearings, the fixed sleeve is fixed on an oil groove, lubricating oil is prevented from leaking from the fixed sleeve through a framework oil seal, the lubricating oil can be prevented from leaking from a position between the fixed sleeve and the oil groove through an arranged sealing ring, dust can be prevented from entering the framework oil seal through an arranged dust ring, the oil leakage phenomenon is reduced, and the fixed sleeve and a pressing ring which are fixed through bolts can be conveniently detached and cleaned.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a schematic front view of the internal structure of the present invention.

Fig. 3 is an enlarged view of a in fig. 2.

In the figure: 1. an oil sump; 2. lubricating oil; 3. a ball screw; 4. fixing a sleeve; 5. a first mounting groove; 6. a bearing; 7. pressing a ring; 8. a second mounting groove; 9. framework oil seal; 10. a lead screw nut; 11. a locking plate; 12. a dust ring; 13. and (5) sealing rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the lead screw shaft head sealing structure comprises an oil groove 1, lubricating oil 2 is contained in the oil groove 1, a fixed sleeve 4 is fixedly connected outside one side wall of the oil groove 1, the fixed sleeve 4 is rotatably connected with a ball screw 3, the ball screw 3 penetrates through one side wall of the oil groove 1 and is arranged in the lubricating oil 2, a first mounting groove 5 is arranged in the fixed sleeve 4, a plurality of bearings 6 are fixedly connected in the first mounting groove 5, the ball screw 3 is fixedly connected in the inner rings of the bearings 6, one end of the fixed sleeve 4 is fixedly connected with a press ring 7, one end of the compression ring 7 is inserted into the first mounting groove 5 and tightly abuts against one end of the outermost side of the plurality of bearings 6, a second mounting groove 8 is formed in one end, located in the first mounting groove 5, of the compression ring 7, a framework oil seal 9 is mounted in the second mounting groove 8, and the inner ring of the framework oil seal 9 is in contact with the ball screw 3; a thread groove is formed in one end, located on the outer side of the compression ring 7, of the ball screw 3, a pair of screw nuts 10 are screwed in the thread groove, and a locking plate 11 is installed between the pair of screw nuts 10; a groove is formed in the inner ring at the other end of the compression ring 7, and a dustproof ring 12 is installed in the groove; a sealing ring 13 is arranged between the fixed sleeve 4 and the oil groove 1; the fixed sleeve 4 is fixedly connected with the oil groove 1 and the compression ring 7 is fixedly connected with the fixed sleeve 4 through bolts; the number of the plurality of bearings 6 is two.

Example (b): as can be known from the attached figures 1-3 of the specification, when in use, the ball screw 3 can be fixed in the fixed sleeve 4 through the plurality of bearings 6, the fixed sleeve 4 is fixed on the oil groove 1, the leakage of lubricating oil from the fixed sleeve 4 is prevented through the arranged framework oil seal 9, the leakage of lubricating oil from between the fixed sleeve 4 and the oil groove 1 is prevented through the arranged sealing ring 13, the dust can be prevented from entering the framework oil seal 9 through the arranged dust ring 12, the occurrence of the oil leakage phenomenon is reduced, and the fixed sleeve 4 and the pressing ring 7 which are fixed through bolts can be conveniently detached and cleaned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Lead screw spindle nose seal structure, including oil groove (1), the splendid attire has lubricating oil (2) in oil groove (1), its characterized in that, the outer rigid coupling of oil groove (1) lateral wall has fixed cover (4), fixed cover (4) internal rotation is connected with ball (3), ball (3) run through an oil groove (1) lateral wall is put in lubricating oil (2), set up first mounting groove (5) in fixed cover (4), the rigid coupling has a plurality of bearings (6) in first mounting groove (5), ball (3) rigid coupling in a plurality of in bearing (6) inner circle, fixed cover (4) one end rigid coupling has clamping ring (7), just clamping ring (7) one end cartridge in first mounting groove (5) and support tightly in a plurality of bearing (6) outside one end, clamping ring (7) are located one end has seted up second mounting groove (8) in first mounting groove (5), and a framework oil seal (9) is installed in the second installation groove (8), and the inner ring of the framework oil seal (9) is in contact with the ball screw (3).

2. The lead screw spindle nose sealing structure according to claim 1, wherein a thread groove is formed in one end of the ball screw (3) located on the outer side of the compression ring (7), a pair of lead screw nuts (10) are screwed on the thread groove, and a locking plate (11) is installed between the pair of lead screw nuts (10).

3. The lead screw spindle nose sealing structure according to claim 1, wherein a groove is formed in an inner ring at the other end of the compression ring (7), and a dust ring (12) is installed in the groove.

4. The lead screw spindle nose sealing structure according to claim 1, characterized in that a sealing ring (13) is provided between the fixing sleeve (4) and the oil groove (1).

5. The lead screw spindle nose sealing structure of claim 1, characterized in that the fixing sleeve (4) and the oil groove (1) and the compression ring (7) and the fixing sleeve (4) are fixedly connected by bolts.

6. The lead screw spindle nose sealing structure of claim 1, characterized in that a number of the bearings (6) is two.