CN212225813U

CN212225813U - Bearing locking device for double-wheel milling speed reducer

Info

Publication number: CN212225813U
Application number: CN202020788617.5U
Authority: CN
Inventors: 程慧杰
Original assignee: JIANGSU NANFANG ELECTROMECHANICAL CO LTD
Current assignee: JIANGSU NANFANG ELECTROMECHANICAL CO LTD
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2020-12-25
Anticipated expiration: 2030-05-13

Abstract

The utility model relates to a bearing locking device who uses on double round mills speed reducer, including bearing locking Assembly, bearing locking Assembly is located the ring gear seat and keeps away from floating seal's one end, bearing locking Assembly is including overlapping bearing locking clamping ring, bearing locking endotheca and the bearing locking lid on the ring gear seat in proper order, the position that corresponds with bearing locking endotheca is equipped with the annular groove on the ring gear seat outer wall. The utility model discloses a bearing locking Assembly's setting, when the assembly, need not the match and grind bearing locking clamping ring, labour saving and time saving has improved production efficiency, and set up the clearance between bearing locking lid and bearing locking endotheca, bearing locking lid and bearing locking clamping ring can reach the effect of tightening up after screwing up locking screw, avoid because of the machining error of each spare part, and lead to the bearing can't be locked and have the axial float problem, avoid influencing the bearing life-span, floating seal's sealing performance, the security has been improved.

Description

Bearing locking device for double-wheel milling speed reducer

Technical Field

The utility model relates to a speed reducer technical field, concretely relates to bearing locking device who uses on double round mills speed reducer.

Background

The double-wheel milling machine is internationally advanced special equipment which is applied to excavating various geology in constructional engineering, and a double-wheel milling speed reducer can carry various different chain wheel cutters and is suitable for requirements of different geology. Compared with the traditional equipment for constructing the diaphragm wall of the underground engineering, such as a hydraulic grab bucket, a rotary drilling rig and the like, the double-wheel milling tool has the characteristics of high efficiency, high precision, low noise and the like, and is the most advanced equipment for constructing the diaphragm wall of the underground engineering at the present stage. Because the equipment has high use strength, severe working environment and long continuous working time, the equipment has extremely high requirements on processing and assembly, and most of the equipment used in China is imported overseas equipment.

The double-wheel milling speed reducer comprises an arc-tooth bevel gear set, a planetary gear set, a gear ring set, a peripheral covering member set and the like. The power is connected into a speed reducer through an input shaft, is connected with a pair of arc-tooth bevel gear sets to carry out primary transmission, converts radial transmission into axial transmission and outputs the axial transmission to a planetary gear set, then the torque is amplified by the 1-3-stage planetary gear set, and the reduction gearbox is enabled to do mechanical rotary motion under the action of floating seal.

The discovery during the assembly, the ring gear seat, a bearing, the bearing frame, during floating seal's installation, because installation correlation size is more, need use the adjustment shim to adjust the axial clearance or with bearing locking clamping ring match the mill as required when the assembly, these two kinds of modes waste time and energy, greatly influence the installation progress, and because the jump ring is very big, very difficult operation during the assembly, still can be because the adjustment clearance is too tight and unable installation jump ring, perhaps there is the axial float problem in the adjustment clearance too pine, this can influence the bearing life-span in the use, floating seal's sealing performance, there is very big potential safety hazard.

SUMMERY OF THE UTILITY MODEL

For solving the problem that prior art exists, the utility model provides a bearing locking device who uses on double round mills speed reducer.

In order to achieve the above object, the utility model adopts the following technical scheme:

a bearing locking device used on a double-wheel milling speed reducer comprises a gear ring seat, a bearing seat and a floating seal, wherein the bearing seat and the floating seal are both sleeved on the gear ring seat, a bearing is arranged on the inner side of the bearing seat, the bearing locking device also comprises a bearing locking component, the bearing locking component is positioned at one end, far away from the floating seal, of the gear ring seat, the bearing locking component comprises a bearing locking pressing ring, a bearing locking inner sleeve and a bearing locking cover which are sequentially sleeved on the gear ring seat, an annular groove is arranged on the outer wall of the gear ring seat, corresponding to the bearing locking inner sleeve, a clamping block extending into the annular groove is arranged on the inner wall of the bearing locking inner sleeve, an annular pressing block extending towards the direction of the bearing locking pressing ring is arranged on the side wall of the bearing locking cover, when the annular pressing block is abutted against the bearing, a gap exists between the inner side wall of, the bearing locking cover and the bearing locking inner sleeve are fixed through a locking screw, so that the bearing is locked by the bearing locking pressing ring and the bearing is locked.

Preferably, the gap has a pitch of 0.8mm to 1.5 mm.

In any of the above schemes, preferably, the bearing locking cover and the bearing locking inner sleeve are respectively provided with a plurality of threaded holes distributed in an annular array, and each threaded hole is connected with a locking screw to fix the bearing locking cover and the bearing locking inner sleeve.

In any of the above schemes, preferably, the bearing locking inner sleeve is of a split structure, and the bearing locking inner sleeve comprises at least two bearing locking sub sleeves which are equally divided.

In any of the above schemes, preferably, at least one of the bearing locking sub-sleeves is provided with an insertion block extending outwards on the outer wall, a sliding groove is formed in a position of the annular pressing block corresponding to the insertion block, and when the insertion block is inserted into the sliding groove, the threaded holes in the bearing locking cover correspond to the threaded holes in the bearing locking inner sleeve one to one.

In any of the above aspects, preferably, the floating seal is fixed to the ring gear seat by pressing the bearing seat.

In any of the above aspects, preferably, the locking screw is a socket head cap screw.

Compared with the prior art, the utility model provides a bearing locking device who uses on the double round mills speed reducer has following beneficial effect:

1. through the arrangement of the bearing locking assembly, when the gear ring seat, the bearing and the bearing seat are sealed in a floating and sealing mode, the bearing locking pressure ring does not need to be ground, time and labor are saved, the production efficiency is improved, a gap is formed between the bearing locking cover and the bearing locking inner sleeve, the bearing locking cover and the bearing locking pressure ring can achieve the tightening effect after the locking screw is screwed down, the problem that the bearing cannot be locked to cause axial movement due to the machining error of each part is avoided, the service life of the bearing is prevented from being influenced, the sealing performance of the floating seal is prevented, and the safety is improved;

2. because the bearing locking cover and the bearing locking pressing ring are fixed by the circle of locking screws, the force of the bearing locking pressing ring for pressing the bearing is balanced in all directions, the problem of uneven stress caused by the out-of-tolerance of the flatness and the parallelism of parts during processing is solved, the processing difficulty in the production process is reduced, and the working efficiency is improved.

Drawings

Fig. 1 is a schematic overall structural diagram of a preferred embodiment of a bearing locking device for a double-wheel milling speed reducer according to the present invention;

FIG. 2 is a right side view of the bearing lock assembly of the embodiment of FIG. 1;

FIG. 3 is an enlarged view of FIG. 1;

fig. 4 is a right side view of the bearing lock inner race of the embodiment of fig. 1.

The figures are labeled as follows: 1. a ring gear seat; 2. floating sealing; 3. a bearing seat; 4. a bearing; 5. the bearing locks the inner sleeve; 6. a bearing locks the compression ring; 7. an annular groove; 8. a bearing locking cover; 9. locking the screw; 10. inserting a block; 11. a threaded bore.

Detailed Description

In order to further understand the inventive content of the present invention, the present invention will be explained in detail with reference to the specific embodiments.

As shown in fig. 1-4, according to an embodiment of the bearing locking device for use on a double-wheel milling speed reducer provided by the present invention, the bearing locking device comprises a gear ring seat 1, a bearing seat 3, a floating seal 2, wherein the bearing seat 3 and the floating seal 2 are both sleeved on the gear ring seat 1, a bearing 4 is installed inside the bearing seat 3, and a bearing locking assembly, wherein the bearing locking assembly is located at one end of the gear ring seat 1 away from the floating seal 2, the bearing locking assembly comprises a bearing locking ring 6, a bearing locking inner sleeve 5 and a bearing locking cover 8 which are sequentially sleeved on the gear ring seat 1, an annular groove 7 is arranged on the outer wall of the gear ring seat 1 corresponding to the bearing locking inner sleeve 5, a clamping block extending into the annular groove 7 is arranged on the inner wall of the bearing locking inner sleeve 5, an annular pressing block extending towards the direction of the bearing locking ring 6 is arranged on the side wall of the bearing locking cover 8 close to, when annular briquetting and bearing locking clamping ring 6 butt, there is the clearance between the inside wall of bearing locking lid 8 and the 5 lateral walls of bearing locking endotheca, bearing locking lid 8 is fixed through locking screw 9 with bearing locking endotheca 5 to make bearing locking clamping ring 6 lock the bearing. Through the setting of bearing locking Assembly, when the assembly, need not to match the mill bearing locking clamping ring 6 because of the machining error of each part, labour saving and time saving also does not have the clearance problem simultaneously, increases the assembly precision, has reduced the processing degree of difficulty of part, has prolonged holistic life, has solved because the clearance is too loose or the potential safety hazard problem that the tension brought.

The gap spacing is 0.8mm to 1.5mm, preferably 1 mm. The purpose is in order to twist locking screw 9 back bearing locking lid 8 and bearing locking clamping ring 6 can reach the effect of tightening up, avoids because of the machining error of each spare part, and the unable locked axial float problem that exists of bearing, avoids influencing bearing life, floating seal 2's sealing performance, has improved the security.

The bearing locking cover 8 and the bearing locking inner sleeve 5 are respectively provided with a plurality of threaded holes 11 distributed in an annular array mode, and each threaded hole 11 is connected with a locking screw 9 so that the bearing locking cover 8 and the bearing locking inner sleeve 5 can be fixed. The bearing can be completely fixed by screwing the locking screw 9 according to the specified torque, and the force for pressing the bearing is balanced in all directions due to the fact that the locking screw 9 is fixed by the circle, so that the problem of uneven stress caused by the fact that the flatness and the parallelism of parts are out of tolerance during machining is solved, and the machining difficulty in the production process is reduced.

Wherein, bellied thickness and annular groove 7's width phase difference 0.1mm make the arch can inject in annular groove 7, and be difficult to rock by a wide margin.

The bearing locking inner sleeve 5 is of a split structure, and the bearing locking inner sleeve 5 comprises at least two bearing locking sub sleeves which are equally divided. The bearing locking inner sleeve 5 is designed to be split, so that when the bearing locking inner sleeve 5 is arranged on the gear ring seat 1, the bulge can be inserted into the annular groove 7.

Preferably, the bearing locking inner sleeve 5 is divided into three sections which are spliced together to form an annular structure sleeved on the gear ring seat 1 and the annular groove 7.

At least one of the bearing locking split sleeve is provided with an insert block 10 extending outwards on the outer wall, a sliding groove is formed in the position, corresponding to the insert block 10, of the annular pressing block, and when the insert block 10 is inserted into the sliding groove, threaded holes 11 in the bearing locking cover 8 correspond to threaded holes 11 in the bearing locking inner sleeve 5 one to one. Through the cooperation of inserted block 10 and spout, when making bearing locking lid 8 install on ring gear seat 1, screw hole 11 on bearing locking lid 8 just corresponds with screw hole 11 on the bearing locking endotheca 5, need not to install behind the bearing lid to aim at screw hole 11, makes installation locking screw 9 more swift, has improved the installation effectiveness.

The floating seal 2 is fixed with the gear ring seat 1 through the extrusion of the bearing seat 3.

It will be understood by those skilled in the art that any combination of the elements of the present invention, including the summary and detailed description of the invention provided in the foregoing description and illustrated in the accompanying drawings, is not to be considered limiting in scope and in order to make the description more concise, and not to describe every element of the combination. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a bearing locking device who uses on double round mills speed reducer, includes ring gear seat, bearing frame, floating seal, the bearing frame all overlaps on the ring gear seat with floating seal, the inboard installation bearing of bearing frame, its characterized in that: still include bearing locking Assembly, bearing locking Assembly is located the ring gear seat and keeps away from floating seal's one end, bearing locking Assembly is including bearing locking clamping ring, bearing locking endotheca and the bearing locking lid of cover on the ring gear seat in proper order, the position that corresponds with bearing locking endotheca on the ring gear seat outer wall is equipped with the annular groove, be equipped with the fixture block that extends to in the annular groove on the inner wall of bearing locking endotheca, be equipped with the annular briquetting that extends to bearing locking clamping ring direction on the lateral wall that bearing locking lid is close to bearing locking endotheca, when annular briquetting and bearing locking clamping ring butt, there is the clearance between the inside wall of bearing locking lid and the bearing locking endotheca lateral wall, bearing locking lid passes through locking screw with bearing locking endotheca and fixes to make bearing locking clamping ring bearing.

2. The bearing locking device used on the double-wheel milling speed reducer according to claim 1, characterized in that: the gap distance is 0.8mm-1.5 mm.

3. The bearing locking device used on the double-wheel milling speed reducer according to claim 1, characterized in that: the bearing locking cover and the bearing locking inner sleeve are respectively provided with a plurality of threaded holes distributed in an annular array mode, and each threaded hole is connected with a locking screw so that the bearing locking cover and the bearing locking inner sleeve are fixed.

4. The bearing locking device used on the double-wheel milling speed reducer according to claim 1, characterized in that: the bearing locking inner sleeve is of a split structure and comprises at least two bearing locking sub sleeves which are equally divided.

5. The bearing locking device used on the double-wheel milling speed reducer according to claim 1, characterized in that: the outer wall of at least one of the bearing locking sub-sleeves is provided with an insertion block extending outwards, the positions of the annular pressing block corresponding to the insertion blocks are provided with sliding grooves, and when the insertion blocks are inserted into the sliding grooves, the threaded holes in the bearing locking cover correspond to the threaded holes in the bearing locking inner sleeve one by one.

6. The bearing locking device used on the double-wheel milling speed reducer according to claim 1, characterized in that: the floating seal is fixed with the gear ring seat through extrusion of the bearing seat.

7. The bearing locking device used on the double-wheel milling speed reducer according to claim 1, characterized in that: the locking screw is a socket head cap screw.