CN109137646B - Automatic feeding device of steel rail drilling machine - Google Patents
Automatic feeding device of steel rail drilling machine Download PDFInfo
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- CN109137646B CN109137646B CN201811053038.XA CN201811053038A CN109137646B CN 109137646 B CN109137646 B CN 109137646B CN 201811053038 A CN201811053038 A CN 201811053038A CN 109137646 B CN109137646 B CN 109137646B
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- nut body
- shaft
- base body
- output
- feeding device
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/02—Working rail or other metal track components on the spot
- E01B31/06—Making holes, e.g. by drilling, punching, flame-cutting
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2203/00—Devices for working the railway-superstructure
- E01B2203/01—Devices for working the railway-superstructure with track
- E01B2203/012—Devices for working the railway-superstructure with track present, i.e. in its normal position
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses an automatic feeding device of a steel rail drilling machine, which comprises a main board, a guide post, a mounting base body, a double-output-shaft direct current motor, a sleeve, a spiral shaft, a thrust base body, a first nut body, a second nut body, a supporting base body, a connecting rod and other parts, wherein the first nut body and the second nut body have different lead lengths and the same spiral direction and are matched with the spiral shaft to form a micro-motion spiral mechanism.
Description
Technical Field
The invention relates to an automatic feeding device, in particular to an automatic feeding device of a steel rail drilling machine, and belongs to the technical field of steel rail drilling machine components.
Background
The steel rail drilling machine is mainly used for railway track replacement construction, is one of common small machines for railway emergency maintenance operation, and mainly achieves the function of on-site steel rail drilling. The rotation of the drill bit of the existing steel rail drilling machine is usually driven by an engine or a motor, and the maintenance of the engine is far more complicated than that of the motor, so that the motor driving has obvious advantages, and the direct current motor is usually adopted as the driving motor because part of railway maintenance sites are difficult to take electricity or cannot take electricity. No matter what kind of power drive, the feeding of the drill bit of the steel rail drilling machine is often manually completed, the manual operation increases the labor intensity of constructors, and the drilling clamping phenomenon often occurs due to uneven manual operation force, too much force is exerted, the operation efficiency is reduced, so that the defect of manual operation is urgently needed to be overcome by the device. Chinese patent application No.: 201710305410.0 discloses a rail drill with automatic feeding function, the driver adopts a single output shaft DC motor, the DC motor outputs rotation motion, at the same time, drives the propulsion shaft to rotate through the transmission of a secondary gear, then drives the propulsion plate and the motor mounting plate to move along the guide shaft through the screw transmission of the propulsion shaft and the end plate, further drives the DC motor and the main shaft to move to realize the feeding function, after the drilling is finished, the reverse travel switch controls the main shaft to reverse, the backing is realized, after the backing is in place, the travel switch is stopped to control the stop, the whole drilling operation cycle is finished; because the direct current motor has higher rotating speed, in order to control the feeding speed and avoid the drill jamming phenomenon, the automatic feeding of the drilling operation is realized through the secondary gear reduction mechanism and the bolt transmission mechanism, but the automatic feeding function is realized by adopting the micro-motion bolt mechanism on the basis of the defects that the structure is complex and the manufacturing and maintenance costs are high due to the adoption of the secondary gear transmission.
Disclosure of Invention
In order to solve the problems, the invention provides an automatic feeding device of a steel rail drilling machine, which comprises a main board, two parallel guide posts, an installation base, a double-output-shaft direct current motor, a sleeve, a screw shaft, a thrust base, a first nut body, a support base and a second nut body, wherein the first nut body is fixedly connected with the thrust base, the second nut body is fixedly connected with the support base, the screw thread turning directions of the first nut body and the second nut body are the same, the screw thread lead of the second nut body is larger than that of the first nut body, and right-end external threads and middle external threads are respectively arranged at the right end and the middle of the screw shaft; the right-end external thread has the same lead and the same rotation direction as the second nut body to form a matched screw pair, the middle external thread has the same lead and the same rotation direction as the first nut body to form a matched screw pair, and the left end of the screw shaft is provided with an optical axis with a key groove and is in matched connection with the right end of the sleeve through a flat key; the output shaft of the right end of the double-output-shaft direct current motor is fixedly connected with the left end of the sleeve through a flat key and a set screw, and the output shaft of the left end of the double-output-shaft direct current motor drives the drill bit to rotate; the left end of the guide post is matched and connected with the main board and fixed through a screw, and the right end of the guide post is matched and connected with the support base body and fixed through a screw; the mounting seat body is fixed with the thrust seat body through 4 connecting rods.
As a preferred embodiment, both ends of the connecting rod are provided with threads, and the end part of the connecting rod is respectively fixed with the mounting seat body and the thrust seat body through nuts; the double-output-shaft direct current motor is fixedly connected with the mounting base body through a bolt; the installation seat body and the thrust seat body are both provided with two guide sleeves, and the guide sleeves and the guide columns are movably connected in a matched mode.
As a preferred embodiment, the main board is provided with a reverse travel switch, and the support base is provided with a stop travel switch.
In a preferred embodiment, the automatic feeding device is suitable for a rail drilling machine with a rail clamping device, a drilling device and a cooling device.
As a preferred embodiment, the feeding device needs the automatic feeding length to be l, when the lead of the second nut body is m (m >1) times that of the first nut body, the movable stroke of the screw shaft relative to the sleeve is more than l/(m-1), the length of the external thread at the middle part of the screw shaft minus the length of the internal thread of the first nut body is more than l/(m-1), and the length of the external thread at the right end of the screw shaft minus the length of the internal thread of the second nut body is more than ml/(m-1).
Drawings
Fig. 1 is an overall configuration diagram of a rail boring machine to which the present invention is applied;
fig. 2 is a sectional view of the automatic feeding apparatus of the present invention.
Wherein: 1. a main board; 2. a guide post; 3. mounting a base body; 4. a guide sleeve; 5. a DC motor with double output shafts; 6. a sleeve; 7. a screw shaft; 8. a thrust seat body; 9. a first nut body; 10. a support base; 11. a second nut body; 12. a connecting rod; 13. a reverse travel switch; 14. a stop travel switch; 15. a rail clamping device; 16. a drilling device; 17. and a cooling device.
Detailed Description
As shown in fig. 1 and 2, an automatic feeding device of a rail drilling machine includes a main board 1, a guide post 2, a mounting base 3, a guide sleeve 4, a dual output shaft dc motor 5, a sleeve 6, a screw shaft 7, a thrust base 8, a first nut body 9, a support base 10, a second nut body 11, and a connecting rod 12; wherein, the first nut body 9 is fixedly connected with the thrust seat body 8, and the second nut body 11 is fixedly connected with the support seat body 10; the right end external thread of the screw shaft 7 and the second nut body 11 form a matched screw pair, the middle external thread of the screw shaft 7 and the first nut body 9 form a matched screw pair, the left end of the screw shaft 7 is a shaft section provided with a key groove, and the left end of the screw shaft 7 and the right end of the sleeve 6 form matched connection capable of moving relatively through a flat key; the left ends of the two parallel guide posts 2 are matched and connected with the main board 1 and fixed through screws, and the right ends of the two parallel guide posts 2 are matched and connected with the support base 10 and fixed through screws; the mounting base body 3 and the thrust base body 8 are fixedly connected through threaded connection at two ends of a connecting rod 12, the double-output-shaft direct current motor 5 is fixedly connected to the mounting base body 3 through bolts, the mounting base body 3 and the thrust base body 8 are both provided with two guide sleeves 4, and the guide sleeves 4 are movably matched and connected with the guide columns 2; the right-end output shaft of the double-output-shaft direct current motor 5 is fixedly connected with the sleeve 6 through a flat key and a set screw, and the left-end output shaft drives the drill bit to rotate.
As shown in FIG. 2, when the required automatic feed length is l, the screw shaft 7 moves a distance l relative to the first nut body 9 in one feed process1The screw shaft 7 moves a distance l relative to the second nut body 112Let the lead of the first nut body 9 be s1The lead of the second nut body 11 is ms1(m is more than 1), if the double-output-shaft direct current motor rotates forwards, the screw shaft 7 is driven to move leftwards relative to the second nut body 11, the rotating directions of the first nut body and the second nut body are the same, at the moment, the first nut body 9 moves rightwards relative to the screw shaft 7, and the lead of the second nut body 11 is ms1Greater than the lead of the first nut body 9 by s1When the screw shaft 7 rotates once, the first nut body 9 moves leftwards relative to the second nut body 11 by a distance (m-1) s1Because the second nut body 11 is fixed, and the first nut body 9 is fixedly connected with the thrust seat body 8, the mounting seat body 3 and the double-output-shaft direct-current motor 5, the first nut body 9 drives the double-output-shaft direct-current motor 5 to move left along the two parallel guide posts 2, so that a feeding function is realized; through the above analysis, it is possible to obtain: l: l1∶l2＝(m-1)s1∶S1∶ms11: m, so1＝l/(m-1)，l2Ml/(m-1), to avoid the movement interference, and ensure the screw pair always keeps a certain screwing length,
by setting reasonable m and s1Can control the feed quantity (m-1) s of the DC motor 5 with double output shafts per revolution1The problem that the drill is stuck when the feeding amount is too large is avoided.
As shown in fig. 2, the main board 1 is mounted with a reverse travel switch 13, and the support base 11 is mounted with a stop travel switch 14.
As shown in fig. 1, the automatic feeding device of the present invention is applied to a rail drilling machine having a rail clamping device 15, a drilling device 16, and a cooling device 17.
When the invention is applied specifically, a direct current motor and an electrical control system (comprising a lithium battery) of a steel rail drilling machine are connected, the steel rail drilling machine is fixed on a steel rail 15 by using a rail clamping device, a cooling device 17 is started to spray water for cooling, a start button of the electrical control system is pressed, an output shaft at the left end of a double-output-shaft direct current motor 5 drives a drill bit to rotate to realize cutting action, an output shaft at the right end drives a screw shaft 7 to rotate to realize feeding action, after drilling and feeding actions are finished, an installation base body 3 touches a reverse travel switch 13, the electrical control system controls the double-output-shaft direct current motor 5 to rotate reversely to realize return movement, a thrust base body 8 touches a stop travel switch 14 when returning in place, the direct current motor stops rotating, a valve of the cooling device is closed, a caliper device is loosened, the.
Claims (5)
1. An automatic feeding device of rail drill which characterized in that: the feeding device comprises a main board (1), two parallel guide columns (2), an installation base body (3), a guide sleeve (4), a double-output-shaft direct-current motor (5), a sleeve (6), a micro-motion screw shaft (7), a thrust base body (8), a first nut body (9), a support base body (10) and a second nut body (11), wherein the first nut body (9) is fixedly connected with the thrust base body (8), the second nut body (11) is fixedly connected with the support base body (10), the thread turning directions of the first nut body (9) and the second nut body (11) are the same, the thread lead of the second nut body (11) is larger than that of the first nut body (9), and the right end external thread and the middle external thread are respectively arranged at the right end and the middle of the micro-motion screw shaft (7); the right-end external thread has the same lead and the same rotation direction as the second nut body (11) to form a matched screw pair, the middle external thread has the same lead and the same rotation direction as the first nut body (9) to form a matched screw pair, and the left end of the micro-motion screw shaft (7) is an optical axis provided with a key groove and is in matched connection with the right end of the sleeve (6) through a flat key; the output shaft of the right end of the double-output-shaft direct current motor (5) is fixedly connected with the left end of the sleeve (6) through a flat key and a set screw, and the output shaft of the left end of the double-output-shaft direct current motor (5) drives the drill bit to rotate; the left end of the guide post (2) is matched and connected with the main board (1) and fixed through a screw, and the right end of the guide post (2) is matched and connected with the support base body (10) and fixed through a screw; the mounting seat body (3) and the thrust seat body (8) are fixed through 4 connecting rods (12); the action of the double-output-shaft direct-current motor is as follows: the lead of the first nut body (9) is set as s1The lead of the second nut body (11) is ms1Wherein m is more than 1, when the direct current motor with double output shafts rotates forwards, the micro-motion screw shaft (7) is driven to move leftwards relative to the second nut body (11), because the rotation directions of the first nut body and the second nut body are the same, the first nut body (9) moves rightwards relative to the micro-motion screw shaft (7), and because the lead of the second nut body (11) is ms1Is greater than the lead of the first nut body (9) by s1When the micro-screw shaft (7) rotates for each circle, the left movement distance of the first nut body (9) relative to the second nut body (11) is (m-1) s1Because the second nut body (11) is fixed and the first nut body (9) is fixedly connected with the thrust base body (8), the mounting base body (3) and the double-output-shaft direct-current motor (5), the first nut body (9) drives the double-output-shaft direct-current motor (5) to move left along the two parallel guide columns (2) to realize feeding.
2. The automatic feeding device of a rail drill according to claim 1, wherein: threads are arranged at two ends of the connecting rod (12), and the end part of the connecting rod (12) is respectively fixed with the mounting base body (3) and the thrust base body (8) through nuts; the double-output-shaft direct current motor (5) is fixedly connected with the mounting base body (3) through bolts; the mounting base body (3) and the thrust base body (8) are both provided with two guide sleeves (4), and the guide sleeves (4) are movably matched and connected with the guide columns (2).
3. The automatic feeding device of a rail drill according to claim 1, wherein: the main board (1) is provided with a reverse travel switch (13), and the support base body (11) is provided with a stop travel switch (14).
4. The automatic feeding device of a rail drill according to claim 1, wherein: the automatic feeding device is suitable for a steel rail drilling machine with a rail clamping device (15), a drilling device (16) and a cooling device (17).
5. The automatic feeding device of a rail drill according to claim 1, wherein: the automatic feeding length required by the feeding device is l, when the lead of the second nut body (11) is m times of the lead of the first nut body (9), wherein m is larger than 1, the movable stroke of the micro-motion screw shaft (7) relative to the sleeve (6) is larger than l/(m-1), the length of the external thread at the middle part of the micro-motion screw shaft (7) minus the length of the internal thread of the first nut body (9) is larger than l/(m-1), and the length of the external thread at the right end of the micro-motion screw shaft (7) minus the length of the internal thread of the second nut body (11) is larger than ml/(m-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811053038.XA CN109137646B (en) | 2018-09-10 | 2018-09-10 | Automatic feeding device of steel rail drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811053038.XA CN109137646B (en) | 2018-09-10 | 2018-09-10 | Automatic feeding device of steel rail drilling machine |
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| CN109137646A CN109137646A (en) | 2019-01-04 |
| CN109137646B true CN109137646B (en) | 2021-04-16 |
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| CN201811053038.XA Active CN109137646B (en) | 2018-09-10 | 2018-09-10 | Automatic feeding device of steel rail drilling machine |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11602795B2 (en) * | 2020-01-08 | 2023-03-14 | Stanley Black & Decker, Inc. | Railroad track rail drill |
| CN111230176A (en) * | 2020-02-13 | 2020-06-05 | 谭登富 | Intelligent steel rail drilling machine of torque push shell hood based on clamp seat |
| CN112095373A (en) * | 2020-09-14 | 2020-12-18 | 杨丽红 | Railway rail drilling machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866661B (en) * | 2012-12-13 | 2015-09-16 | 昆明中铁大型养路机械集团有限公司 | A kind of rig of miniature high-speed non-fragment orbit |
| US9434014B1 (en) * | 2013-10-18 | 2016-09-06 | Bnsf Railway Company | Field-portable hole broaching machines and methods for using the same |
| CN205519798U (en) * | 2016-02-06 | 2016-08-31 | 宁波慧作机电有限公司 | Automatic drilling machine |
| CN105862527B (en) * | 2016-06-03 | 2018-12-21 | 无锡赫格仕科技有限公司 | A kind of lithium electricity rail bonding drill |
| CN206286896U (en) * | 2016-12-07 | 2017-06-30 | 东莞市埃弗米数控设备科技有限公司 | A kind of tool holder micrometer feed device |
| CN206677233U (en) * | 2017-03-23 | 2017-11-28 | 北京安沃科技有限公司 | Clamp system and drilling machine |
| CN106988174B (en) * | 2017-05-03 | 2018-03-06 | 石家庄铁道大学 | Rail bonding drill with auto-feed function |
| CN206952202U (en) * | 2017-07-05 | 2018-02-02 | 江苏中科云控智能工业装备有限公司 | A kind of mechanical workpieces drilling equipment |
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