CN108223528A - Tensioning connection device and coalcutter - Google Patents
Tensioning connection device and coalcutter Download PDFInfo
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- CN108223528A CN108223528A CN201711348210.XA CN201711348210A CN108223528A CN 108223528 A CN108223528 A CN 108223528A CN 201711348210 A CN201711348210 A CN 201711348210A CN 108223528 A CN108223528 A CN 108223528A
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- tensioner
- compressing member
- connection device
- cap
- connecting rod
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- 230000000694 effects Effects 0.000 abstract description 14
- 230000007812 deficiency Effects 0.000 abstract description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000036316 preload Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/30—Locking exclusively by special shape of the screw-thread
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Pivots And Pivotal Connections (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The present invention provides a kind of tensioning connection device and coalcutter, wherein, tensioning connection device includes：Axis pin, one end of axis pin are equipped with the first tensioner cap and the first compressing member, and the other end of axis pin is equipped with the second tensioner cap and the second compressing member；Connecting rod, connecting rod sequentially passes through the centre bore of the centre bore of the first tensioner cap, the centre bore of axis pin and the second tensioner cap, and the both ends of connecting rod are fixedly connected respectively with the first compressing member and the second compressing member；First trip bolt is threadedly coupled with the first threaded hole on the first compressing member, and the first trip bolt is for compressing the first tensioner cap, so that the first tensioner cap, the second tensioner cap and axis pin realize that tensioner is fixed.Tensioning connection device provided by the invention is capable of providing larger pretightning force, firm and reliable connection, it is safe, and with preferable relaxation effect, the situation for being less prone to due to pretightning force deficiency or locking failure and axis pin being made to scurry out, it is easy to disassemble simultaneously, it is easy to maintain.
Description
Technical field
The present invention relates to coalcutter field, in particular to a kind of tensioning connection device and a kind of coalcutter.
Background technology
At present, it is generally attached between the cutting units of coalcutter and fuselage and height-regulating oil cylinder using axis pin form,
Two class of multi-diameter shaft and the axis of cone can be divided into according to the design feature of axis pin 102.
In the relevant technologies, as shown in Figure 1, axis pin 102 is multi-diameter shaft, traditional multi-diameter shaft assembles steps using interference fit
In the matching hole of terraced axle mechanical type press-in cutting units housing 104, when dismounting, need to utilize specific purpose tool to extract.However, the mistake of hole axle
Be full of causes dismounting inconvenient with credit union, and since underground working is severe, dust ponding causes multi-diameter shaft that can not extract after entering mating surface
Situation happen occasionally.
As shown in Fig. 2, axis pin 102 is the axis of cone, the axis of cone is easy to assembly relative to traditional multi-diameter shaft, compresses preceding both sides tapered sleeve
106 with the axis of cone be clearance fit, and the axis of cone with tapered sleeve 106 fix by the tensioner under the action of fastening bolt 108 during assembling, fastening bolt
108 need enough pretightning forces and corresponding locking measures, and when axis of cone structure is larger, 108 pretightning force of fastening bolt is also corresponding
It improves.However, although the structure type of the axis of cone solves the problems, such as that multi-diameter shaft dismounting is inconvenient, but since junction operating space has
Limit, causes 108 pretightning force of fastening bolt that can not ensure, difficulty is realized when pretightning force is larger, while anti-loosing effect is bad, works as preload
It will appear the situation that axis pin is scurried out when power deficiency or locking failure.
Invention content
At least one in order to solve the above-mentioned technical problem, it is an object of the present invention to provide a kind of connections of tensioner to fill
It puts.
It is another object of the present invention to provide a kind of coalcutters with above-mentioned tensioning connection device.
To achieve the above object, the embodiment of first aspect present invention provides a kind of tensioning connection device, including：Pin
Axis, one end of axis pin are equipped with the first tensioner cap and the first compressing member, and the other end of axis pin is equipped with the second tensioner cap and second and compresses
Part；Connecting rod, connecting rod sequentially pass through the centre bore of the centre bore of the first tensioner cap, the centre bore of axis pin and the second tensioner cap,
And the both ends of connecting rod are fixedly connected respectively with the first compressing member and the second compressing member；First trip bolt, with the first compressing member
On the first threaded hole be threadedly coupled, the first trip bolt for compress the first tensioner cap so that the first tensioner cap, the second tensioner
Cap and axis pin realize that tensioner is fixed.
Tensioning connection device provided by the invention including axis pin and is sheathed on the first tensioner cap and at axis pin both ends
Two tensioner caps by setting connecting rod, the first compressing member and the second compressing member, make connecting rod sequentially pass through in the first tensioner cap
The centre bore in heart hole, the centre bore of axis pin and the second tensioner cap, and make the both ends of connecting rod respectively with the first compressing member and second
Compressing member is fixedly connected, and is realized the preliminary fixed of the first tensioner cap, the second tensioner cap and axis pin and is pre-tightened.By being compressed first
First trip bolt on part is set, is threadedly coupled the first threaded hole on the first trip bolt and the first compressing member, Ke Yitong
The first trip bolt of rotation is crossed, realizes and compresses the first tensioner cap using the first trip bolt, and then the first tensioner cap, second is made to rise
Tight cap and axis pin realize that tensioner is fixed.Through the above scheme, it is not easy to occur, since junction operating space is limited, causing to connect
Bar pretightning force can not ensure, the problem of being difficult to realize when required pretightning force is larger.Tensioning connection device provided by the invention,
Be capable of providing larger pretightning force, and with preferable relaxation effect, be less prone to due to pretightning force is insufficient or locking failure and
Make the situation that axis pin is scurried out, it is safe.
Wherein, optionally, the front end face of the first trip bolt could be provided as plane, so that the first trip bolt is pushing
During the first tensioner cap, the power generated to the first tensioner cap is not easy excessively to concentrate, and is conducive to protect the first tensioner cap, improves
The service life of first tensioner cap.
In addition, the tensioning connection device in above-described embodiment provided by the invention can also have following supplementary technology spy
Sign：
In above-mentioned technical proposal, it is preferable that further include：Pressing plate, between the first tensioner cap and the first trip bolt.
In the present solution, by setting pressing plate between the first tensioner cap and the first trip bolt, on the one hand, can be to avoid
One trip bolt and the first tensioner cap are in direct contact, and are conducive to protect the first tensioner cap, to improve the first tensioner cap
Service life.On the other hand, the pretightning force generated on the first trip bolt can be distributed in the entire surface of pressing plate, makes first
Tensioner cap uniform force is conducive to improve assembly precision, reliability and fastness after reinforcing member connection.
Wherein, optionally, pressing plate is steel plate or iron plate.
Optionally, the first tensioner cap is rubber sleeve.
Optionally, pressing plate is equipped with centre bore, and pressing plate is sheathed in connecting rod.
In any of the above-described technical solution, it is preferable that pressing plate and the first tensioner cap are an integral structure.
In the present solution, by the way that pressing plate and the first tensioner cap is set to be an integral structure, product component has been simplified, has been had whole
The advantages of body is easy to assembly, while there is higher stability and reliability, it is not likely to produce phase between pressing plate and the first tensioner cap
To movement, so as to preferably be protected to the first tensioner cap using pressing plate.
In any of the above-described technical solution, it is preferable that the quantity of the first trip bolt be two or more, two or two
A the first above trip bolt circumferentially array centered on the central axes of connecting rod.
In the present solution, by set the first trip bolt quantity for two or more, be capable of providing larger
Pretightning force.By setting two or more first trip bolts circumferentially array centered on the central axes of connecting rod,
On the one hand larger pretightning force is capable of providing, on the other hand with preferable relaxation effect, stability after tensioner connection and can
By property height, the situation for being less prone to due to pretightning force deficiency or locking failure and axis pin being made to scurry out is safe.
In any of the above-described technical solution, it is preferable that the first trip bolt is equipped with fine thread, and the first trip bolt passes through
Fine thread is connect with the first threaded hole.
In the present solution, by setting fine thread on the first trip bolt, the first trip bolt is made to pass through closely-pitched spiral shell
Line is connect with the first threaded hole on the first compressing member, can improve fastening anti-loosing effect, and reliability is high.
Wherein, optionally, the quantity of the first threaded hole is multiple, and the circumferentially battle array centered on the central axes of connecting rod
Row.
Optionally, the central axes of the first threaded hole and the central axes of connecting rod are parallel to each other, pass through the first trip bolt pressure
During tight first tensioner cap, stability and reliability are higher.
In any of the above-described technical solution, it is preferable that connecting rod and the first compressing member are an integral structure；Or connecting rod and
Two compressing members are an integral structure；Or second compressing member and the second tensioner cap be an integral structure；Or connecting rod, the second compressing member
It is an integral structure with the second tensioner cap.
In the present solution, by the way that connecting rod and the first compressing member is set to be an integral structure or set connecting rod and second
Compressing member is an integral structure or sets the second compressing member and the second tensioner cap is an integral structure or connecting rod, the second compression
Part and the second tensioner cap are an integral structure, and are conducive to simplify component, and then make the overall structure of tensioning connection device simple, tight
It gathers, while convenient for carrying out fast assembling-disassembling and repair into tensioning connection device.
In any of the above-described technical solution, it is preferable that connecting rod is double threaded screw；Wherein, the second of the first compressing member center
Threaded hole and the threaded one end of connecting rod connect；And/or second compressing member center third threaded hole and connecting rod the other end
It is threadedly coupled.
In the present solution, connecting rod is double threaded screw, by setting second threaded hole at the first compressing member center with connecting
The third threaded hole at the second compressing member center of threaded one end connection and/or setting of bar is threadedly coupled with the other end of connecting rod,
Improve install convenient, that is, can respectively be tightened from both direction in assembling, practicability is high.Meanwhile, it is capable to first is set to rise
Tight cap and the second tensioner cap uniform force, be less prone to makes the first tensioner cap and/or second rises since unilateral screwing force is excessive
The situation that tight cap is directly scrapped.
In any of the above-described technical solution, it is preferable that further include：The 4th spiral shell on second trip bolt, with the second compressing member
Pit is threadedly coupled, and the second trip bolt is for the second tensioner cap of compression.
In the present solution, set the second trip bolt by being arranged on the second compressing member, make the second trip bolt and
The 4th threaded hole on two compressing members is threadedly coupled, and can be realized by rotating the second trip bolt and utilize the second trip bolt
The second tensioner cap is compressed, and then the first tensioner cap, the second tensioner cap and axis pin is made to realize that tensioner is fixed.Through the above scheme, no
It is susceptible to since junction operating space is limited, causes connecting rod pretightning force that can not ensure, when required pretightning force is larger
The problem of being difficult to realize, tensioning connection device provided by the invention are capable of providing larger pretightning force, and have and preferably loosen
Effect, the situation for being less prone to due to pretightning force deficiency or locking failure and axis pin being made to scurry out are safe.
In addition, through the above scheme, also improve install convenient, that is, can respectively be twisted from both direction in assembling
Tightly, practicability is high.Meanwhile, it is capable to make the first tensioner cap and the second tensioner cap uniform force, it is less prone to due to unilateral screwing force
Excessive and situation that the first tensioner cap and/or the second tensioner cap is made directly to scrap.
In any of the above-described technical solution, it is preferable that the both ends of axis pin are tapered, and the first tensioner cap and the second tensioner cap are cone
Shape set.
In the present solution, by setting the both ends of axis pin tapered, and the first tensioner cap and the second tensioner cap are set for cone
Shape set can improve stability and reliability after tensioner connection.
The embodiment of second aspect of the present invention provides a kind of coalcutter, connects including the tensioner in any of the above-described technical solution
Connection device.
Coalcutter provided by the invention, because of the tensioning connection device being provided in any of the above-described technical solution, so as to have
All of the above advantageous effect, details are not described herein.
In above-mentioned technical proposal, it is preferable that the cutting units of tensioning connection device connection coalcutter and the fuselage of coalcutter；
And/or tensioning connection device connects the cutting units of coalcutter and the height-regulating oil cylinder of coalcutter
In the present solution, connecting the cutting units of coalcutter and the fuselage of coalcutter by tensioning connection device, coal mining is improved
The cutting units of machine connected with the fuselage of coalcutter after stability and by the property leaned on.Cutting for coalcutter is connected by tensioning connection device
Cut the height-regulating oil cylinder of portion and coalcutter, improve coalcutter cutting units connected with the height-regulating oil cylinder of coalcutter after stability and
Reliability is less prone to the situation that axis pin is scurried out, safe.
The additional aspect and advantage of the present invention will become practice apparent or by the present invention in following description section
Recognize.
Description of the drawings
Fig. 1 shows the structure diagram of a tensioning connection device in the relevant technologies；
Fig. 2 shows the structure diagrams of another tensioning connection device in the relevant technologies；
Fig. 3 shows the structure diagram of tensioning connection device according to an embodiment of the invention.
Wherein, the correspondence in Fig. 1 to Fig. 3 between reference numeral and component names is：
102 axis pins, 104 cutting units housings, 106 tapered sleeves, 108 fastening bolts, 110 connecting rods, 112 first tensioner caps, 114
First compressing member, 116 second tensioner caps, 118 second compressing members, 120 first trip bolts, 122 pressing plates.
Specific embodiment
It is to better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented using other different from other modes described here, therefore, protection scope of the present invention is not limited to following public affairs
The limitation for the specific embodiment opened.
The tensioning connection device provided according to some embodiments of the invention referring to Fig. 3 descriptions.
As shown in figure 3, tensioning connection device provided in an embodiment of the present invention, including axis pin 102, the first tensioner cap 112,
One compressing member 114, the second tensioner cap 116, the second compressing member 118 and the first trip bolt 120.
Specifically, the first tensioner cap 112 and the second tensioner cap 116 are sheathed on the both ends of axis pin 102, by making connecting rod
110 sequentially pass through the centre bore of the centre bore of the first tensioner cap 112, the centre bore of axis pin 102 and the second tensioner cap 116, and make
The both ends of connecting rod 110 are fixedly connected respectively with the first compressing member 114 and the second compressing member 118, the first tensioner cap 112 of realization,
The preliminary fixed and preload of second tensioner cap 116 and axis pin 102.
By setting the first trip bolt 120 on the first compressing member 114, compress the first trip bolt 120 and first
The first threaded hole on part 114 is threadedly coupled, and can be realized by rotating the first trip bolt 120 and utilize the first trip bolt
120 compress the first tensioner cap 112, and then the first tensioner cap 112, the second tensioner cap 116 and axis pin 102 is made to realize and further rise
It fastens.Through the above scheme, it is not easy to occur, since junction operating space is limited, causing 110 pretightning force of connecting rod can not
The problem of ensureing, being difficult to realize when required pretightning force is larger.Tensioning connection device provided by the invention is capable of providing larger
Pretightning force, and with preferable relaxation effect, be less prone to due to pretightning force is insufficient or locking failure and axis pin 102 is made to scurry out
Situation, it is safe.
Wherein, optionally, the front end face of the first trip bolt 120 could be provided as plane, so that the first trip bolt 120
When pushing the first tensioner cap 112, the power generated to the first tensioner cap 112 is not easy excessively to concentrate, and is conducive to the first tensioner cap
112 are protected, and improve the service life of the first tensioner cap 112.
In one specific embodiment, as shown in figure 3, tensioning connection device includes double threaded screw (i.e. connecting rod 110), limiting
Plate (i.e. the second compressing member 118), nutplate (i.e. the first compressing member 114), passage plate (i.e. pressing plate 122), the first taper positioning sleeve
(i.e. the first tensioner cap 112), the second taper positioning sleeve (i.e. the second tensioner cap 116) and the axis of cone (i.e. axis pin 102).
Specifically, double threaded screw is connect by screw thread with limiting plate, nutplate, and by the first taper positioning sleeve, passage plate,
The axis of cone, the second taper positioning sleeve are fixed between limiting plate, nutplate.Limiting plate, passage plate, nutplate are positioned relative to taper
Set can be circumferentially rotated and be moved axially.For trip bolt with nutplate using being threadedly coupled, trip bolt can be in nut by rotation
It is moved axially in plate.It is gap-matched between first taper positioning sleeve and the axis of cone.As shown in figure 3, assembling is completed as illustrated
After when fastening, several trip bolts of circle distribution on tightening nut plate, trip bolt is moved to axial with nutplate generation
Passage plate is made to shift to left side.Nutplate is pulled limiting plate by double threaded screw to the right simultaneously, and then positions the first taper
Set, the axis of cone and the second taper positioning sleeve realize that swelling is fixed, and trip bolt quantity can be determined according to pretightning force and space size, tightly
It is Gu locking by fine thread connection realization between screw and nutplate.Through the above scheme, by axis of cone tapered sleeve and breakaway nut knot
Structure is combined, and dismounting is easy to maintain, and the pretightning force of former fastening bolt is shared by several Screws effectively reduces pre-fastening moment, together
When fine thread compared with regular screw threads have better anti-loosing effect.
In some embodiments of the invention, as shown in figure 3, tensioning connection device further includes：Pressing plate 122, set on first
Between 112 and first trip bolt 120 of tensioner cap.
In the present solution, by setting pressing plate 122 between the first tensioner cap 112 and the first trip bolt 120, on the one hand,
It can be in direct contact to avoid the first trip bolt 120 and the first tensioner cap 112, be conducive to protect the first tensioner cap 112,
To improve the service life of the first tensioner cap 112.It on the other hand, can be by the pretightning force generated on the first trip bolt 120 point
It is scattered in the entire surface of pressing plate 122, makes 112 uniform force of the first tensioner cap, be conducive to improve assembly precision, reinforcing member connection
Reliability and fastness afterwards.
Wherein, optionally, pressing plate 122 is steel plate or iron plate.
Optionally, the first tensioner cap 112 is rubber sleeve.
Optionally, pressing plate 122 is equipped with centre bore, and pressing plate 122 is sheathed in connecting rod 110.
In some embodiments of the invention, 122 and first tensioner cap 112 of pressing plate is an integral structure.In the present solution,
By the way that 122 and first tensioner cap 112 of pressing plate is set to be an integral structure, product component has been simplified, has had the overall package convenient
Advantage, while there is higher stability and reliability, relative motion is not likely to produce between 122 and first tensioner cap 112 of pressing plate,
So as to preferably be protected to the first tensioner cap 112 using pressing plate 122.
In some embodiments of the invention, as shown in figure 3, the quantity of the first trip bolt 120 for two or two with
On, two or more first trip bolts 120 circumferentially array centered on the central axes of connecting rod 110.
In the present solution, by set the first trip bolt 120 quantity for two or more, be capable of providing larger
Pretightning force.By setting two or more first trip bolts 120 centered on the central axes of connecting rod 110 in circle
On the one hand all arrays are capable of providing larger pretightning force, on the other hand with preferable relaxation effect, the stabilization after tensioner connection
Property and reliability it is high, be less prone to since pretightning force is insufficient or locking failure and situation that axis pin 102 is made to scurry out, it is safe.
In some embodiments of the invention, the first trip bolt 120 is equipped with fine thread, the first trip bolt 120
It is connect by fine thread with the first threaded hole.
In the present solution, by setting fine thread on the first trip bolt 120, pass through the first trip bolt 120
Fine thread is connect with the first threaded hole on the first compressing member 114, can improve fastening anti-loosing effect, and reliability is high.
Wherein, optionally, the quantity of the first threaded hole is multiple, and centered on the central axes of connecting rod 110 circumferentially
Array.
Optionally, the central axes of the first threaded hole and the central axes of connecting rod 110 are parallel to each other, pass through the first trip bolt
During 120 the first tensioner cap 112 of compression, stability and reliability are higher.
Optionally, the first trip bolt 120 is coarse thread or other special tooth form screw threads.
In some embodiments of the invention, 110 and first compressing member 114 of connecting rod is an integral structure；Or connecting rod
110 and second compressing member 118 be an integral structure；Or second compressing member 118 and the second tensioner cap 116 be an integral structure；Or
Connecting rod 110, the second compressing member 118 and the second tensioner cap 116 are an integral structure.
In the present solution, by the way that 110 and first compressing member 114 of connecting rod is set to be an integral structure or set connecting rod
110 and second compressing member 118 to be an integral structure or set the second compressing member 118 and the second tensioner cap 116 be integral type knot
Structure or connecting rod 110, the second compressing member 118 and the second tensioner cap 116 are an integral structure, and are conducive to simplify component, and then make
The overall structure of tensioning connection device is simple, compact, while convenient for carrying out fast assembling-disassembling and repair into tensioning connection device.
In some embodiments of the invention, as shown in figure 3, connecting rod 110 is double threaded screw；Wherein, the first compressing member
114 are connect by second threaded hole at center with the threaded one end of connecting rod 110；And/or second compressing member 118 pass through center
Third threaded hole is threadedly coupled with the other end of connecting rod 110.
In the present solution, connecting rod 110 is double threaded screw, by the second threaded hole for setting 114 center of the first compressing member
The third threaded hole at 118 center of the second compressing member and connecting rod 110 are connect and/or set with the threaded one end of connecting rod 110
The other end is threadedly coupled, and improves install convenient, that is, can respectively be tightened from both direction in assembling, practicability is high.Together
When, 116 uniform force of the first tensioner cap 112 and the second tensioner cap can be made, be less prone to since unilateral screwing force is excessive and make
The situation that first tensioner cap 112 and/or the second tensioner cap 116 are directly scrapped.
In some embodiments of the invention, tensioning connection device further includes：Second trip bolt, with the second compressing member
The 4th threaded hole on 118 is threadedly coupled, and the second trip bolt is for the second tensioner cap 116 of compression.
In the present solution, set the second trip bolt on the second compressing member 118 by being arranged on, make the second trip bolt and
The 4th threaded hole on second compressing member 118 is threadedly coupled, and can be realized by rotating the second trip bolt and utilize the second fastening
The second tensioner of screw in compression cap 116, and then the first tensioner cap 112, the second tensioner cap 116 and axis pin 102 is made to realize that tensioner is fixed.
Through the above scheme, it is not easy to occur, since junction operating space is limited, causing 110 pretightning force of connecting rod that can not ensure,
The problem of required pretightning force is difficult to realize when larger, tensioning connection device provided by the invention are capable of providing larger preload
Power, and with preferable relaxation effect, the feelings for being less prone to due to pretightning force deficiency or locking failure and axis pin 102 being made to scurry out
Condition, it is safe.
In addition, through the above scheme, also improve install convenient, that is, can respectively be twisted from both direction in assembling
Tightly, practicability is high.Meanwhile, it is capable to make 116 uniform force of the first tensioner cap 112 and the second tensioner cap, it is less prone to due to unilateral side
The situation that screwing force is excessive and the first tensioner cap 112 and/or the second tensioner cap 116 is made directly to scrap.
Wherein, optionally, the second trip bolt is fine thread, coarse thread or other special tooth form screw threads.
In some embodiments of the invention, as shown in figure 3, the both ends of axis pin 102 are tapered, 112 He of the first tensioner cap
Second tensioner cap 116 is taper sheath.
In the present solution, by setting the both ends of axis pin 102 tapered, and the first tensioner cap 112 and the second tensioner are set
Cap 116 is taper sheath, can improve stability and reliability after tensioner connection.
Optionally, other special shaped screw bolts may be used in connecting rod 110.
Coalcutter (not shown) provided in this embodiment, including the tensioning connection device in any of the above-described embodiment.
Coalcutter (not shown) provided by the invention, because the tensioner being provided in any of the above-described embodiment connects dress
It puts, so as to which with all of the above advantageous effect, details are not described herein.
In above-described embodiment, it is preferable that the cutting units of tensioning connection device connection coalcutter and the fuselage of coalcutter；With/
Or tensioning connection device connects the cutting units of coalcutter and the height-regulating oil cylinder of coalcutter
In the present solution, connecting the cutting units of coalcutter and the fuselage of coalcutter by tensioning connection device, coal mining is improved
The cutting units of machine connected with the fuselage of coalcutter after stability and by the property leaned on.Cutting for coalcutter is connected by tensioning connection device
Cut the height-regulating oil cylinder of portion and coalcutter, improve coalcutter cutting units connected with the height-regulating oil cylinder of coalcutter after stability and
Reliability is less prone to the situation that axis pin 102 is scurried out, safe.
In conclusion tensioning connection device provided by the invention and coalcutter, are capable of providing larger pretightning force, and have
Preferable relaxation effect, the situation for being less prone to due to pretightning force deficiency or locking failure and axis pin being made to scurry out, being connected firmly can
It leans on, it is safe and easy to disassemble, it is easy to maintain.
In the present invention, term " first ", " second ", " third " are only used for the purpose described, and it is not intended that instruction
Or imply relative importance；Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " installation ",
The terms such as " connected ", " connection ", " fixation " should all be interpreted broadly, for example, " connection " can be fixedly connected or can
Dismantling connection is integrally connected；" connected " can be directly connected, and can also be indirectly connected by intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In description of the invention, it is to be understood that the instructions such as term " on ", " under ", "left", "right", "front", "rear"
Orientation or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of the description present invention and simplification is retouched
It states rather than indicates or imply signified device or unit must have specific direction, with specific azimuth configuration and operation,
It is thus impossible to it is interpreted as limitation of the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that the particular features, structures, materials, or characteristics that the embodiment or example describe are contained in the present invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more embodiments or example with
Suitable mode combines.
It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification for all within the spirits and principles of the present invention, being made,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of tensioning connection device, which is characterized in that including：
Axis pin, one end of the axis pin are equipped with the first tensioner cap and the first compressing member, and the other end of the axis pin rises equipped with second
Tight cap and the second compressing member；
Connecting rod, the connecting rod sequentially pass through the centre bore of the first tensioner cap, the centre bore of the axis pin and described
The centre bore of two tensioner caps, and the both ends of the connecting rod are fixed with first compressing member and second compressing member connect respectively
It connects；
First trip bolt is threadedly coupled with the first threaded hole on first compressing member, and first trip bolt is used for
The first tensioner cap is compressed, so that the first tensioner cap, the second tensioner cap and the axis pin realize that tensioner is fixed.
2. tensioning connection device according to claim 1, which is characterized in that further include：
Pressing plate, between the first tensioner cap and first trip bolt.
3. tensioning connection device according to claim 2, which is characterized in that
The pressing plate and the first tensioner cap are an integral structure.
4. tensioning connection device according to any one of claim 1 to 3, which is characterized in that
The quantity of first trip bolt be two or more, two or more first trip bolts with
Circumferentially array centered on the central axes of the connecting rod.
5. tensioning connection device according to any one of claim 1 to 3, which is characterized in that
First trip bolt is equipped with fine thread, and first trip bolt passes through the fine thread and described first
Threaded hole connects.
6. tensioning connection device according to any one of claim 1 to 3, which is characterized in that
The connecting rod and first compressing member are an integral structure；Or
The connecting rod and second compressing member are an integral structure；Or
Second compressing member and the second tensioner cap are an integral structure；Or
The connecting rod, second compressing member and the second tensioner cap are an integral structure.
7. tensioning connection device according to any one of claim 1 to 3, which is characterized in that
The connecting rod is double threaded screw；
Wherein, second threaded hole at the first compressing member center is connect with the threaded one end of the connecting rod；And/or
The third threaded hole at the second compressing member center is threadedly coupled with the other end of the connecting rod.
8. tensioning connection device according to any one of claim 1 to 3, which is characterized in that further include：
Second trip bolt is threadedly coupled with the 4th threaded hole on second compressing member, and second trip bolt is used for
Compress the second tensioner cap.
9. tensioning connection device according to any one of claim 1 to 3, which is characterized in that
The both ends of the axis pin are tapered, and the first tensioner cap and the second tensioner cap are taper sheath.
10. a kind of coalcutter, which is characterized in that including tensioning connection device as claimed in any one of claims 1-9 wherein.
11. the coalcutter according to any one of claim 10, which is characterized in that
The tensioning connection device connects the cutting units of the coalcutter and the fuselage of the coalcutter；And/or
The tensioning connection device connects the cutting units of the coalcutter and the height-regulating oil cylinder of the coalcutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711348210.XA CN108223528B (en) | 2017-12-15 | 2017-12-15 | Tension connecting device and coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711348210.XA CN108223528B (en) | 2017-12-15 | 2017-12-15 | Tension connecting device and coal mining machine |
Publications (2)
| Publication Number | Publication Date |
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| CN108223528A true CN108223528A (en) | 2018-06-29 |
| CN108223528B CN108223528B (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711348210.XA Active CN108223528B (en) | 2017-12-15 | 2017-12-15 | Tension connecting device and coal mining machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117232711A (en) * | 2023-11-14 | 2023-12-15 | 山西省长治经坊煤业有限公司 | Coal-winning machine pull rod pretightning force detection device |
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| CN205840873U (en) * | 2016-07-15 | 2016-12-28 | 哈尔滨博业科技开发有限责任公司 | Winning machine cutting part bearing pin backing stop structure |
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| CN2119497U (en) * | 1992-05-06 | 1992-10-21 | 华北石油管理局第二机械厂 | Anti-stripping wrist pins for pumping unit |
| EP0960265B1 (en) * | 1997-02-03 | 2002-04-17 | Kennamental Inc. | Cutting toolholder retention system |
| CN201149023Y (en) * | 2008-01-23 | 2008-11-12 | 三一重型装备有限公司 | Tightened connection bolt anti-loose mechanism for coal mine working face coal winning machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117232711A (en) * | 2023-11-14 | 2023-12-15 | 山西省长治经坊煤业有限公司 | Coal-winning machine pull rod pretightning force detection device |
| CN117232711B (en) * | 2023-11-14 | 2024-01-30 | 山西省长治经坊煤业有限公司 | Coal-winning machine pull rod pretightning force detection device |
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| Publication number | Publication date |
|---|---|
| CN108223528B (en) | 2020-06-19 |
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