CN113417178A - Multi-degree-of-freedom porous drilling method applied to railway waste steel rail repair - Google Patents

Multi-degree-of-freedom porous drilling method applied to railway waste steel rail repair Download PDF

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Publication number
CN113417178A
CN113417178A CN202110848453.XA CN202110848453A CN113417178A CN 113417178 A CN113417178 A CN 113417178A CN 202110848453 A CN202110848453 A CN 202110848453A CN 113417178 A CN113417178 A CN 113417178A
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CN
China
Prior art keywords
drill rod
universal joint
guide
steel rail
freedom
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Pending
Application number
CN202110848453.XA
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Chinese (zh)
Inventor
吴斌
陈宝民
牙马忠
王世淼
沈军
刘辉
孔维荣
郝旭
潘坤
纪永康
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China Railway Materials Group Resources Technology Co Ltd
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China Railway Materials Group Resources Technology Co Ltd
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Application filed by China Railway Materials Group Resources Technology Co Ltd filed Critical China Railway Materials Group Resources Technology Co Ltd
Priority to CN202110848453.XA priority Critical patent/CN113417178A/en
Publication of CN113417178A publication Critical patent/CN113417178A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B31/00Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/02Working rail or other metal track components on the spot
    • E01B31/06Making holes, e.g. by drilling, punching, flame-cutting

Abstract

The invention discloses a multi-degree-of-freedom porous drilling method applied to railway waste steel rail repair, which comprises the following steps of: pre-adjusting equipment: the number of universal joint drill rod assemblies is set according to the processing requirement, the heights of the universal joint drill rod assemblies and the guiding devices are adjusted through hydraulic control, the intervals of the multiple taper shank twist drills are adjusted, the intervals of the multiple guiding rings are adjusted, the guiding rings and the taper shank twist drills are located at the same horizontal position, and the taper shank twist drills penetrate through the guiding rings to be in clearance fit with the reducing sleeves; the steel rail is transported to a corresponding position and fixed through a limiting device; turning on a motor, and driving the universal joint drill rod assembly to rotate through a power box system; and the feeding oil cylinder system controls the universal joint drill rod assembly to feed to realize drilling. On the premise of ensuring the drilling precision, the invention can meet the requirement of simultaneously drilling multiple holes of the waste steel rails of different specifications of railways, thereby solving the problems of low efficiency and incapability of ensuring the parallelism of the previous single-hole sequential drilling and improving the efficiency and the automation degree of the drilling of the waste steel rails of railways.

Description

Multi-degree-of-freedom porous drilling method applied to railway waste steel rail repair
Technical Field
The invention belongs to the field of rail transit equipment manufacturing, and particularly relates to a multi-degree-of-freedom porous drilling method applied to railway waste steel rail repair.
Background
The recycling of the waste railway steel rails is an important work for recycling waste railway materials. Generally, the drilling of the waste steel rails of the railway is mostly carried out one by adopting a common horizontal drilling machine to process each hole, three holes need to be drilled at one end of one steel rail, and only one hole can be drilled by one-time clamping, so that the problems of long time consumption, low efficiency, high rejection rate and the like exist in the process of drilling the steel rails by using the common horizontal drilling machine, a drilling template is easy to wear, the drilling precision is poor, and the coaxiality of each hole cannot be ensured.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a multi-degree-of-freedom porous drilling method applied to the repair of waste railway steel rails.
The specific technical scheme of the invention is as follows:
a multi-degree-of-freedom multi-hole drilling method applied to repairing of waste railway rails adopts multi-degree-of-freedom multi-hole drilling equipment for repairing of waste railway rails, and the equipment comprises a motor, a power box system, a plurality of universal joint drill rod assemblies, a feeding oil cylinder system, a guiding device and a limiting device;
the universal joint drill rod assembly comprises a double-cross universal coupling, a working shaft, a Morse taper sleeve and a taper shank twist drill, the taper shank twist drill is embedded into the Morse taper sleeve and is screwed and fixed by a fixing nut, the Morse taper sleeve and the working shaft are in taper fit, the working shaft is rigidly connected with one end of the double-cross universal coupling, and the double-cross universal coupling is connected with the parallel output shaft;
the universal joint drill rod assembly further comprises a drill rod adjusting plate, a plurality of drill rod adjusting holes and an annular mounting groove are formed in the drill rod adjusting plate, a working shaft mounting plate is arranged on each drill rod adjusting hole, the working shaft mounting plate is movably fixed in each drill rod adjusting hole through the matching of a bolt and the annular mounting groove, and the working shaft is rotatably mounted on the working shaft mounting plate;
the vertical height of the guide device is adjusted in the vertical direction through hydraulic control;
the guide device comprises a guide plate and a reducing sleeve, the guide plate is provided with a plurality of guide holes and guide mounting grooves, guide rings are arranged corresponding to the guide holes, the size of each guide ring is smaller than that of each guide hole, the guide rings are movably fixed in the guide holes through the matching of bolts and the guide mounting grooves, and the reducing sleeve is mounted on the guide rings;
the feed cylinder system is used for providing a feed force for the universal joint drill rod assembly;
the motor drives the universal joint drill rod assembly to rotate through the power box system so as to realize drilling;
the drilling end of the universal joint drill rod component is provided with the guide device;
the method comprises the following steps:
pre-adjusting equipment: the number of universal joint drill rod assemblies is set according to the machining requirement, the heights of the universal joint drill rod assemblies and the guiding device are adjusted through hydraulic control, the intervals of a plurality of taper shank twist drills are adjusted, and the intervals of a plurality of guiding rings are adjusted, wherein the guiding rings and the taper shank twist drills are located at the same horizontal position, and the taper shank twist drills penetrate through the guiding rings to be in clearance fit with the reducing sleeve;
the steel rail is transported to a corresponding position and fixed through a limiting device;
turning on the motor, and driving the universal joint drill rod assembly to rotate through the power box system;
and the feeding oil cylinder system controls the universal joint drill rod assembly to feed to realize drilling.
As a preferred technical scheme, the power box system comprises a motor input end, two transmission shafts and a plurality of parallel output shafts, wherein the motor input end transmits power to the two transmission shafts through gear transmission, the two transmission shafts transmit the power to the plurality of parallel output shafts through the gear transmission, and the plurality of parallel output shafts rotate in the same direction and synchronously.
As a preferable technical scheme, a transition sleeve is arranged between the Morse taper sleeve and the working shaft.
According to a preferable technical scheme, the limiting device comprises a hydraulic abutting rod and a limiting seat, and the hydraulic abutting rod is installed on the limiting seat and used for abutting and fixing the steel rail.
As the preferred technical scheme, the inner hole of the reducing sleeve is in clearance fit with the taper shank twist drill.
As the preferred technical scheme, the number of the parallel output shafts and the number of the universal joint drill rod assemblies are 3.
Preferably, the gimballed drill rod assembly is hydraulically controlled in the vertical direction to adjust the height of the gimballed rod assembly along the circular track groove.
Has the advantages that:
according to the invention, the limiting device is arranged on the end of the waste steel rail when the steel rail is fed, and the steel rail can be drilled with multiple holes at the same time after reaching a specified position, so that the conventional modes of multiple adjustment, multiple clamping and multiple drilling are changed, the production efficiency is improved, and the labor intensity is reduced;
the invention adopts a 2-stage gear transmission mode to realize that 3 parallel output shafts synchronously and homodromously drive 3 taper shank twist drills to drill holes simultaneously, and the equipment and the method thereof are firstly applied to the field of recycling of waste railway steel rails;
according to the invention, the distance and the height of each taper shank twist drill and the distance and the height of the guide device can be adjusted, the size of each taper shank twist drill can be flexibly changed, and the requirements of the drilling height, the distance and the pore size of waste steel rails with different specifications can be met.
The multi-freedom-degree multi-hole drill for the waste steel rails of the railway has important significance for quick, efficient and accurate drilling of the waste steel rails, can provide assistance for recycling of waste materials and materials of the railway, and is an important protection point of the multi-freedom-degree multi-hole drill for the waste steel rails of the railway.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is an overall schematic view of a multi-degree-of-freedom multi-hole drilling device for repairing a waste railway rail in an embodiment of the invention.
FIG. 2 is a schematic illustration of the power box system gearing concept in an embodiment of the present invention.
Fig. 3 is a cross-sectional view of a gimballed drill rod assembly in an embodiment of the present invention.
FIG. 4 is a perspective view of a universal joint drill stem assembly in an embodiment of the present invention.
Fig. 5 is a perspective view of a guide device in an embodiment of the present invention.
In the figure, 1 is a motor, 2 is a power box system, 3 is a universal joint drill rod assembly, 301 is a double cross universal coupling, 302 is a working shaft, 303 is a morse taper sleeve, 304 is a taper shank twist drill, 305 is a transition sleeve, 306 is a drill rod adjusting plate, 307 is a drill rod adjusting hole, 308 is an annular mounting groove, 309 is a working shaft mounting plate, 4 is a feed cylinder system, 5 is a guide device, 501 is a guide hole, 502 is a guide plate, 503 is a guide mounting groove, 504 is a guide ring, 505 is a reducing sleeve, 6 is a limiting device, 601 is a hydraulic pressure support rod, and 602 is a limiting seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), 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 only for descriptive purposes 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 the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention will now be further described with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the invention is a multi-degree-of-freedom multi-hole drilling method applied to repairing of waste railway rails, and the multi-degree-of-freedom multi-hole drilling equipment for repairing of waste railway rails is adopted, and comprises a motor 1, a power box system 2, a plurality of universal joint drill rod assemblies 3, a feed oil cylinder system 4, a guiding device 5 and a limiting device 6;
please refer to fig. 2, which is a schematic diagram of a gear transmission principle of a power box system, where the power box system 2 includes a motor input end, two transmission shafts, and three parallel output shafts, the motor input end transmits power to the two transmission shafts through gear transmission, the two transmission shafts transmit power to the three parallel output shafts through gear transmission, and the three parallel output shafts rotate in the same direction and synchronously;
the feed cylinder system 4 is used for providing a feed force for the universal joint drill rod assembly 3;
the motor 1 drives the universal joint drill rod assembly 3 to rotate through the power box system 2 so as to realize drilling;
the drill end of the universal joint drill rod assembly 3 is provided with the guide 5;
the limiting device 6 comprises a hydraulic pressure abutting rod 601 and a limiting seat 602, wherein the hydraulic pressure abutting rod 601 is installed on the limiting seat 602 and used for abutting and fixing the steel rail.
In this embodiment, referring to fig. 3, the universal joint drill rod assembly 3 includes a double cross universal coupling 301, a working shaft 302, a morse taper sleeve 303, a taper shank twist drill 304, and a transition sleeve 305, the taper shank twist drill 304 is embedded in the morse taper sleeve 303 and is screwed and fixed by a fixing nut, the morse taper sleeve 303 and the working shaft 302 form a taper fit, the working shaft 302 is rigidly connected to one end of the double cross universal coupling 301, the double cross universal coupling 301 is connected to the parallel output shaft, and the transition sleeve 305 is disposed between the morse taper sleeve 303 and the working shaft 302.
With continued reference to fig. 4, the universal joint drill rod assembly 3 further includes a drill rod adjusting plate 306, the drill rod adjusting plate 306 is provided with a plurality of drill rod adjusting holes 307 and an annular mounting groove 308, the drill rod adjusting holes 307 are provided with working shaft mounting plates 309, the working shaft mounting plates 309 are movably fixed in the drill rod adjusting holes 307 through the matching of bolts and the annular mounting groove 307, and the working shafts 302 are rotatably mounted on the working shaft mounting plates 309.
Further, the gimballed drill rod assembly 3 is hydraulically controlled in the vertical direction to adjust the height of the gimballed rod assembly along the circular track groove.
Referring to fig. 5, the guiding device 5 is provided with a plurality of guiding holes 501 with adjustable spacing, and the guiding device 5 is hydraulically controlled to adjust the vertical height in the vertical direction so as to meet the requirements of the drilling spacing and the drilling height of steel rail products with different specifications.
Specifically, the guide device 5 includes a guide plate 502, the guide plate 502 is provided with a plurality of guide holes 501 and guide mounting grooves 503, a guide ring 504 is arranged corresponding to the guide holes 501, the size of the guide ring 504 is smaller than that of the guide holes 501, and the guide ring 504 is movably fixed in the guide holes 501 through the matching of bolts and the guide mounting grooves 503. The guiding device 5 further comprises a reducing sleeve 505, and the reducing sleeve 505 is installed on the guiding ring 504. The inner hole of the reducing sleeve 505 is in clearance fit with the taper shank twist drill 304.
The method specifically comprises the following steps:
pre-adjusting equipment: the number of universal joint drill rod assemblies 3 is set according to the machining requirement, the heights of the universal joint drill rod assemblies 3 and the guide device 5 are adjusted through hydraulic control, the intervals of a plurality of taper shank twist drills 304 are adjusted, and the intervals of a plurality of guide rings 504 are adjusted, wherein the guide rings 504 and the taper shank twist drills 304 are located at the same horizontal position, and the taper shank twist drills 304 penetrate through the guide rings 504 to be in clearance fit with the reducing sleeve 505;
the steel rail is transported to a corresponding position and fixed through a limiting device;
turning on the motor 1, and driving the universal joint drill rod assembly 3 to rotate through the power box system 2;
and the feeding oil cylinder system 4 controls the universal joint drill rod component 3 to feed so as to realize drilling.
The waste steel rails of the railway applicable to the embodiment of the invention comprise steel rail products of various specifications and models, such as 75kg/m, 60kg/m, 50kg/m, 43kg/m, 38kg/m and other heavy steel rails and light steel rails. Before machining, the height of the drill rod adjusting plate 306 is adjusted through hydraulic control according to machining requirements, then the position of the working shaft 302 is adjusted through adjusting the position of the working shaft mounting plate 309 in the drill rod adjusting hole 307, and the working shaft is fixed through a bolt, so that the distance between the taper shank twist drills 304 can be adjusted to meet the requirements of different drilling distances and heights. When the height of the universal joint drill rod assembly and the distance between the taper shank twist drills are adjusted, the double-cross universal coupling 301 can realize stable power transmission at a certain angular displacement, and the stable power transmission from a power box system to the universal joint drill rod assembly (specifically, the taper shank twist drill 304) is met.
The guiding device 5 plays a guiding role, corresponding adjustment is carried out according to adjustment of the universal joint drill rod assembly 3, the adjustment requirement is that an inner hole of a reducing sleeve 505 of the guiding device is in clearance fit with the taper shank twist drill 304, the reducing sleeve 505 can be replaced to match with the taper shank twist drill 304 in different sizes, and the guiding device is used for guiding the drill hole of the taper shank twist drill 304 and ensuring the parallelism requirement of the drill hole. The position adjustment of the specific guiding device is consistent with the adjustment principle of the universal joint drill rod assembly 3, the height of the guiding device 5 is adjusted through hydraulic control, and the taper shank twist drill 304 can penetrate through the guiding ring 504 to be in clearance fit with the reducing sleeve 505 by adjusting the relative position of the guiding ring 504 in the guiding hole 501, so that the guiding of the taper shank twist drill 304 is completed, and the requirement on the parallelism of the hole is met.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims (7)

1. A multi-degree-of-freedom porous drilling method applied to railway waste steel rail repair is characterized by comprising the following steps: the multi-degree-of-freedom multi-hole drilling equipment for repairing the waste railway steel rails is adopted, and comprises a motor, a power box system, a plurality of universal joint drill rod assemblies, a feeding oil cylinder system, a guiding device and a limiting device;
the universal joint drill rod assembly comprises a double-cross universal coupling, a working shaft, a Morse taper sleeve and a taper shank twist drill, the taper shank twist drill is embedded into the Morse taper sleeve and is screwed and fixed by a fixing nut, the Morse taper sleeve and the working shaft are in taper fit, the working shaft is rigidly connected with one end of the double-cross universal coupling, and the double-cross universal coupling is connected with the parallel output shaft;
the universal joint drill rod assembly further comprises a drill rod adjusting plate, a plurality of drill rod adjusting holes and an annular mounting groove are formed in the drill rod adjusting plate, a working shaft mounting plate is arranged on each drill rod adjusting hole, the working shaft mounting plate is movably fixed in each drill rod adjusting hole through the matching of a bolt and the annular mounting groove, and the working shaft is rotatably mounted on the working shaft mounting plate;
the vertical height of the guide device is adjusted in the vertical direction through hydraulic control;
the guide device comprises a guide plate and a reducing sleeve, the guide plate is provided with a plurality of guide holes and guide mounting grooves, guide rings are arranged corresponding to the guide holes, the size of each guide ring is smaller than that of each guide hole, the guide rings are movably fixed in the guide holes through the matching of bolts and the guide mounting grooves, and the reducing sleeve is mounted on the guide rings;
the feed cylinder system is used for providing a feed force for the universal joint drill rod assembly;
the motor drives the universal joint drill rod assembly to rotate through the power box system so as to realize drilling;
the drilling end of the universal joint drill rod component is provided with the guide device;
the method comprises the following steps:
pre-adjusting equipment: the number of universal joint drill rod assemblies is set according to the machining requirement, the heights of the universal joint drill rod assemblies and the guiding device are adjusted through hydraulic control, the intervals of a plurality of taper shank twist drills are adjusted, and the intervals of a plurality of guiding rings are adjusted, wherein the guiding rings and the taper shank twist drills are located at the same horizontal position, and the taper shank twist drills penetrate through the guiding rings to be in clearance fit with the reducing sleeve;
the steel rail is transported to a corresponding position and fixed through a limiting device;
turning on the motor, and driving the universal joint drill rod assembly to rotate through the power box system;
and the feeding oil cylinder system controls the universal joint drill rod assembly to feed to realize drilling.
2. The multi-degree-of-freedom porous drilling method applied to railway waste steel rail restoration according to claim 1, characterized in that: the power box system comprises a motor input end, two transmission shafts and a plurality of parallel output shafts, wherein the motor input end transmits power to the two transmission shafts through gear transmission, the two transmission shafts transmit the power to the plurality of parallel output shafts through the gear transmission, and the plurality of parallel output shafts rotate in the same direction and synchronously.
3. The multi-degree-of-freedom porous drilling method applied to railway waste steel rail restoration according to claim 1, characterized in that: and a transition sleeve is arranged between the Morse taper sleeve and the working shaft.
4. The multi-degree-of-freedom porous drilling method applied to railway waste steel rail restoration according to claim 2, characterized in that: the limiting device comprises a hydraulic abutting rod and a limiting seat, and the hydraulic abutting rod is installed on the limiting seat and used for abutting and fixing the steel rail.
5. The multi-degree-of-freedom porous drilling method applied to railway waste steel rail restoration according to claim 1, characterized in that: the inner hole of the reducing sleeve is in clearance fit with the taper shank twist drill.
6. The multi-degree-of-freedom porous drilling method applied to railway waste steel rail restoration according to claim 1, characterized in that: the number of the parallel output shafts and the number of the universal joint drill rod assemblies are 3.
7. The multi-degree-of-freedom porous drilling method applied to railway waste steel rail restoration according to claim 1, characterized in that: the universal joint drill rod assembly is hydraulically controlled in the vertical direction to enable the universal rod assembly to be adjusted in height along the annular track groove.
CN202110848453.XA 2021-07-27 2021-07-27 Multi-degree-of-freedom porous drilling method applied to railway waste steel rail repair Pending CN113417178A (en)

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Application publication date: 20210921