CN105172654B - Railway carriage and its belt Transmission system and tensile force adjusting device - Google Patents
Railway carriage and its belt Transmission system and tensile force adjusting device Download PDFInfo
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- CN105172654B CN105172654B CN201510639675.5A CN201510639675A CN105172654B CN 105172654 B CN105172654 B CN 105172654B CN 201510639675 A CN201510639675 A CN 201510639675A CN 105172654 B CN105172654 B CN 105172654B
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- sliding block
- tensile force
- conveyer belt
- transmission system
- adjusting device
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Abstract
A kind of tensile force adjusting device, the tensile force for adjusting conveyer belt.The tensile force adjusting device includes tensioning wheel and the thrust supplying module of thrust is provided to the tensioning wheel.The conveyer belt is set around the tensioning wheel.The thrust supplying module includes sliding block, support and connecting rod.The connecting rod includes the body of rod and is arranged at the connecting portion of the body of rod.The sliding block is movably set on the support and is fixed on the body of rod.The connecting portion is movably set on the tensioning wheel.When the sliding block is along the bracket slide, the connecting rod promotes the tensioning wheel movement, and the tensioning wheel tenses the conveyer belt, so as to adjust the tensile force of conveyer belt.The present invention also provides the belt Transmission system and railway carriage of the application tensile force adjusting device.Above-mentioned railway carriage and its belt Transmission system can adjust the tensile force of conveyer belt with tensile force adjusting device.
Description
Technical field
The present invention relates to a kind of railway carriage, more particularly to a kind of car with belt Transmission system and tensile force adjusting device
Case.
Background technology
The goods of transport van loads rectangular parallelepiped structure of the carriage body for closing, and its rear end is provided with car door.During loading, goods
By carrying fork truck to car door, then by manually by goods movement to carriage body, and since carriage body front position to carriage body rear end
Order put goods successively.During unloading, manually according to the order of carriage body rear end to carriage body front end by the goods movement in carriage body
To outside carriage body.Not only efficiency is low for the handling goods mode of above-mentioned transport van, more labor intensive.
The content of the invention
In view of the foregoing, it is necessary to provide it is a kind of applied to handling goods efficiency high and save manpower include conveyer belt
Boxcar in, and the tensile force adjusting device that the tensile force of the conveyer belt can be adjusted.
It there is a need to the belt Transmission system that a kind of application tensile force adjusting device is provided.
It there is a need to the railway carriage that a kind of application belt Transmission system is provided.
A kind of tensile force adjusting device, the tensile force for adjusting conveyer belt, the tensile force adjusting device includes tensioning
Wheel and the thrust supplying module that thrust is provided to the tensioning wheel, the conveyer belt are set around the tensioning wheel, and the thrust is supplied
Include sliding block, support and connecting rod to module, the connecting rod includes the body of rod and is arranged at the connecting portion of the body of rod, the cunning
Block is movably set on the support and is fixed on the body of rod, and the connecting portion is movably set on the tensioning wheel, when
When the sliding block is along the bracket slide, the connecting rod promotes the tensioning wheel movement, and the tensioning wheel tenses the transmission
Band, so as to adjust the tensile force of conveyer belt.
A kind of belt Transmission system, including conveyer belt and tensile force adjusting device as described above.
A kind of railway carriage, including bottom plate and the belt Transmission system that is arranged on the bottom plate, the belt Transmission system
Including conveyer belt and tensile force adjusting device as described above.
It is of the invention by setting the thrust supplying module in the tensile force adjusting device compared to prior art,
The tensioning wheel is promoted to move to provide the thrust of several times of the sliding block gravity to the tensioning wheel, so as to adjust the transmission
The tensile force of band.The present invention also by setting the belt Transmission system to improve the efficiency of cargo handling in the railway carriage,
And save manpower.
Brief description of the drawings
The schematic diagram for the railway carriage that Fig. 1 provides for embodiments of the present invention.
Fig. 2 is the belt Transmission system side view of the railway carriage shown in Fig. 1.
Fig. 3 be Fig. 2 shown in belt Transmission system in tensioning wheel schematic diagram.
Fig. 4 is the schematic diagram of the thrust supplying module of the belt Transmission system shown in Fig. 2.
Fig. 5 is the schematic diagram of the fixture of the thrust supplying module shown in Fig. 4.
Fig. 6 be Fig. 2 shown in belt Transmission system in sliding block force analysis figure.
Main element symbol description
| Railway carriage | 1000 |
| Bottom plate | 100 |
| Belt Transmission system | 200 |
| Conveyer belt | 210 |
| Tensile force adjusting device | 220 |
| Tensioning wheel | 230 |
| Wheel shaft | 232 |
| Roller | 236 |
| Thrust supplying module | 240 |
| Sliding block | 242 |
| Support | 246 |
| Hypotenuse | 248 |
| Connecting rod | 250 |
| The body of rod | 252 |
| Connecting portion | 256 |
| Chute | 258 |
| Fixture | 260 |
| Stop section | 262 |
| Graticule | 263 |
| Sliding part | 266 |
| Mounting hole | 268 |
| Driving wheel | 282 |
| Driven pulley | 286 |
| Mounting bracket | 290 |
| Level trough | 291 |
| Graduated scale | 293 |
| Protective cover | 296 |
Following embodiment will further illustrate the present invention with reference to above-mentioned accompanying drawing.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
It should be noted that when component is referred to as " being fixed on " another component, it can be directly on another component
Or can also have component placed in the middle.When a component is considered as " connection " another component, it can be directly connected to
To another component or it may be simultaneously present component placed in the middle.When a component is considered as " being arranged at " another component, it
Can be set directly on another component or may be simultaneously present component placed in the middle.Term as used herein is " vertical
", " level ", "left", "right" and similar statement for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Below in conjunction with the accompanying drawings, some embodiments of the present invention are elaborated.It is following in the case where not conflicting
Feature in embodiment and embodiment can be mutually combined.
Referring to Fig. 1, embodiments of the present invention provide a kind of railway carriage 1000.The railway carriage 1000 include bottom plate 100 and
It is arranged at the belt Transmission system 200 on the bottom plate 100.The railway carriage 1000 can be general lorry, semi-mounted lorry, full extension
The railway carriage of the motor vehicles such as lorry, container car or van.The belt Transmission system 200 is used to transmit goods, to improve
The efficiency of cargo handling, and save manpower.
Fig. 2 is referred to Fig. 5, the belt Transmission system 200 includes conveyer belt 210, tensile force adjusting device 220, master
Driving wheel 282, some driven pulleys 286 and mounting bracket 290.The tensile force adjusting device 220, the driving wheel 282 and it is described from
Driving wheel 286 is arranged on the mounting bracket 290.
The tensile force adjusting device 220 includes tensioning wheel 230 and the thrust supply of thrust is provided to the tensioning wheel 230
Module 240.The tensioning wheel 230 includes wheel shaft 232 and the roller 236 being set on the wheel shaft 232.The conveyer belt 210
It is set around on the roller 236, the roller 236 can be rotated relative to the wheel shaft 232.The thrust supplying module 240 is wrapped
Include sliding block 242, support 246, connecting rod 250 and fixture 260.The support 246 includes hypotenuse 248.The connecting rod 250 is wrapped
Include the body of rod 252 and be arranged at the connecting portion 256 of the body of rod 252.The connecting portion 256 is provided with perpendicular to the body of rod 252
Chute 258.The fixture 260 includes stop section 262 and the sliding part that extends of centre along the side of stop section 262
266.The stop section 262 is provided with graticule 263.It is additionally provided with the fixture 260 through the stop section 262 and the cunning
The mounting hole 268 in dynamic portion 266.In the present embodiment, the width of the chute 258 is more than or equal to the sliding part 266
External diameter, and less than the external diameter of the stop section 262, so that the sliding part 266 can pass through the chute 258 and the stop section
262 blocks are in the both side edges of the chute 258.
The mounting bracket 290 is provided with level trough 291.One end of the wheel shaft 232 is arranged in the level trough 291,
And can be moved in the level trough 291.Graduated scale 293 is provided with the mounting bracket 290 at the wheel shaft 232, it is described
Graduated scale 293 is parallel to the level trough 291.The protection for protecting the graduated scale 293 is additionally provided with the mounting bracket 290
Cover 296.In the present embodiment, the protective cover 296 is transparent.In other embodiments, the protective cover 296 can be with
It is opaque, now, the protective cover 296 is provided with the perforate for being used for showing the graduated scale 293.
The conveyer belt 210 connects the driving wheel 282, the driven pulley 286 and the tensioning wheel 230.The tensioning
Apparatus for adjusting force 220 is used to the tensile force of the conveyer belt 210 is adjusted, skidded with preventing the conveyer belt 210 from occurring,
The problems such as sideslip.The driving wheel 282 is connected with a motor (not shown), and the motor drives the driving wheel 282 to rotate.Institute
State driving wheel 282 drives the driven pulley 286 and the tensioning wheel 230 to rotate by the conveyer belt 210.The conveyer belt
210 move with the rotation of the driving wheel 282, the driven pulley 286 and the tensioning wheel 230.
During assembling, the sliding block 242 is movably set on the hypotenuse 248, and is consolidated by locking the modes such as screw, welding
It is scheduled on the body of rod 252.The sliding part 266 passes through the chute 258, and the block of stop section 262 is in the chute 258
Both side edges.One end that the wheel shaft 232 is arranged in the level trough 291 is locked in the mounting hole 268, will be described solid
Determine part 260 to be fixed on the wheel shaft 232, and the connecting portion 256 is movably set on the wheel shaft 232.It is completed
Afterwards, the body of rod 252 is in horizontality, and the chute 258 is in vertical state.
In the present embodiment, the sliding block 242 includes sliding eye and fixing hole.During assembling, the hypotenuse 248 passes through institute
Sliding eye is stated, the sliding block 242 is movably set on the hypotenuse 248.The body of rod 252 is provided with mounting hole, screw
Fixing hole and the body of rod 252 through the sliding block 242 are provided with mounting hole, and the sliding block 242 is fixed on into the bar
On body 252.Because the body of rod 252 is fixedly connected with the sliding block 242, and the sliding eye of the sliding block 242 is set in institute
State on hypotenuse 248, therefore, the hypotenuse 248 can support the body of rod 252 by the sliding block 242, so that the body of rod 252
In horizontality.
In use, the sliding block 242 is under gravity, there is the trend glided along the hypotenuse 248.When the sliding block
242 along the hypotenuse 248 glide when, the connecting rod 250 moves down and promotes the wheel shaft 232 in the level trough 291
Middle movement.The roller 236 is moved with the movement of the wheel shaft 232, so as to drive the conveyer belt 210 to move with by described in
Conveyer belt 210 is tensed, and then adjusts the tensile force of the conveyer belt 210.The conveyer belt 210 draws tighter, and its tensile force is got over
Greatly, the conveyer belt 210 is also bigger to the thrust of the sliding block 242 by the tensioning wheel 230 and the connecting rod 250.When
The conveyer belt 210 is increased to the thrust of the sliding block 242 when making 242 stress balance of sliding block, and the sliding block 242 is static
On the hypotenuse 248.In the present embodiment, the movement locus of the movement locus of the connecting rod 250 and the sliding block 242
Identical, the wheel shaft 232 is moved in the level trough 291.
When the conveyer belt 210 becomes slack in use, the tensile force of the conveyer belt 210 diminishes, described to pass
Band 210 is sent also to diminish to the thrust of the sliding block 242 by the tensioning wheel 230 and the connecting rod 250.The sliding block 242
Glided because of force unbalance along the hypotenuse 248, the connecting rod 250 promotes the wheel shaft 232 in the level trough 291
It is mobile.The roller 236 is moved with the movement of the wheel shaft 232, so as to drive the conveyer belt 210 to move to pass described
Band 210 is sent to tense, to increase the tensile force of the conveyer belt 210.When the tensile force increase of the conveyer belt 210, the biography
Band 210 is sent also to increase to the thrust of the sliding block 242 by the tensioning wheel 230 and the connecting rod 250.When the conveyer belt
210 to the sliding block 242 thrust increase to make 242 stress balance of sliding block when, the sliding block 242 is still in the hypotenuse
On 248.
It follows that in use, once the conveyer belt 210 relaxes, the sliding block 242 will be along the hypotenuse
248 glide, to promote the wheel shaft 232 to be moved in the level trough 291 by the connecting rod 250, so that by described
Roller 236 tenses the conveyer belt 210, and then increases the tensile force of the conveyer belt 210.When the conveyer belt 210
When tensile force is increased to a certain extent, the stress balance of sliding block 242, so as to be still on the hypotenuse 248.
Referring to Fig. 6, the power that the sliding block 242 is subject to includes the thrust of gravity g, the body of rod 252 to the sliding block 242
Frictional force between f ', the holding power F1 of 248 pairs of the hypotenuse sliding block 242 and the sliding block 242 and the hypotenuse 248
F2.In the present embodiment, the inclination angle of the hypotenuse 248 is θ, component g1=s of the gravity g perpendicular to the hypotenuse 248
Component g2=g × the sin θ of g × cos θ, the gravity g parallel to the hypotenuse 248.The body of rod 252 gives the sliding block 242
Thrust f ' perpendicular to the hypotenuse 248 component f ' 1=f ' × sin θ, the body of rod 252 give the sliding block 242 thrust f '
Parallel to component f ' 2=f ' × cos θ of the hypotenuse 248.The normal pressure F3=g1+ of 242 pairs of the sliding block hypotenuse 248
F ' 1=g × cos θ+f ' × sin θ, the holding power F1 of the hypotenuse 248 and 242 pairs of the sliding block hypotenuse 248 normal pressure
F3 is equal in magnitude and in opposite direction, i.e. F1=F3, that is, the sliding block 242 on the direction perpendicular to the hypotenuse 248 by
Dynamic balance.Frictional force F2=μ F3=μ (g × cos θ+f ' × sin θ) between the sliding block 242 and the hypotenuse 248.At this
In embodiment, the quality of the sliding block 242 is much larger than the quality of the connecting rod 250, and the gravity of the sliding block 242 is also long-range
In the gravity of the connecting rod 250, therefore, when the stress to the sliding block 242 is analyzed, the connecting rod have ignored
Influence of 250 gravity to the sliding block 242.
When the sliding block 242 is still on the hypotenuse 248, the sliding block 242 is in the side parallel to the hypotenuse 248
Upward stress balance, i.e. g2=f ' 2+F2, that is, g × sin θ=f ' × cos θ+μ (g × cos θ+f ' × sin θ) (formula one).
It can be released by formula one, f '=g (sin θ-μ cos θ)/(cos θ+μ sin θs).Because the body of rod 252 gives the tensioning wheel 230
The thrust f of (i.e. to the wheel shaft 232) is equal in magnitude to the thrust f ' of the sliding block 242 with the body of rod 252, in the opposite direction,
Therefore, f=f '=g (sin θ-μ cos θ)/(cos θ+μ sin θs), i.e. the body of rod 252 gives the thrust f=of the tensioning wheel 230
G (sin θ-μ cos θ)/(cos θ+μ sin θs) (formula two).
From formula two, when the tiltangleθ of the hypotenuse 248 is more than 45 degree, the body of rod 252 gives the tensioning wheel
230 thrust f is more than the gravity g of the sliding block 242, and when θ is more than 45 degree and is less than 90 degree, θ is bigger, and f is bigger.That is, exist
In present embodiment, the body of rod 252 is several times of the gravity g of the sliding block 242 to the thrust f of the tensioning wheel 230.Can be with
Understand, the body of rod 252 is equal to tensioning of the tensioning wheel 230 to the conveyer belt 210 to the thrust f of the tensioning wheel 230
Power, therefore, the body of rod 252 are described in the tensile force adjusting device 220 is supplied to the thrust f of the tensioning wheel 230
The tensile force of conveyer belt 210, i.e. the tensile force adjusting device 220 is supplied to the tensile force of the conveyer belt 210 to be the cunning
Several times of the gravity g of block 242.
In the present invention, because the tensile force adjusting device 220 is supplied to the tensile force of the conveyer belt 210 to be described
Several times of the gravity g of sliding block 242, therefore, the present invention use the less sliding block 242 of quality, so that it may provide the tensioning wheel 230
Compared with high thrust.When the quality of the sliding block 242 is smaller, the small volume of the sliding block 242, the space taken are less, and peace
Full hidden danger is relatively low.
It is appreciated that the conveyer belt 210 can be elongated to become loose in use, the conveyer belt 210
The degree being elongated is the rate of tension of the conveyer belt 210.The present invention is on the mounting bracket 290 at the wheel shaft 232
Provided with the graduated scale 293 parallel to the level trough 291, and provided with graticule 263 on the stop section 262 of the fixture 260,
User is by observing the scale of the graduated scale 293 that the graticule 263 is aligned, so that it may know the tensioning of the conveyer belt 210
Degree, consequently facilitating user is visually known the rate of tension of the conveyer belt 210.
In the present invention, when the conveyer belt 210 is in original state (i.e. described conveyer belt 210 is not elongated), institute
The initial scale 0 that graticule 263 is stated with the graduated scale 293 aligns (as shown in Figure 2).When the conveyer belt 210 is using process
Become loose because being elongated, the connecting rod 250 can promote the wheel shaft 232 to be moved in the level trough 291, Zhi Daosuo
State the stress balance of sliding block 242 to be still on the hypotenuse 248, the wheel shaft 232 is just stopped in the level trough 291.
Because the fixture 260 is integrally fixed on the wheel shaft 232, therefore, when the wheel shaft 232 is moved, the fixture
260 also move.Now, by observing the scale for the graduated scale 293 that the graticule 263 of the fixture 260 is aligned, just
It may know that the rate of tension of the conveyer belt 210.Of the conveyer belt 210 on the graduated scale 293 representated by each scale
Tightness can beforehand through experiment and obtain.
The present invention in the tensile force adjusting device 220 by setting the thrust supplying module 240, with to described
Bearing up pulley 230 provides the thrust of several times of the gravity of sliding block 242 to promote the tensioning wheel 230 to move, so as to adjust the transmission
With 210 tensile force.Because the thrust that the thrust supplying module 240 gives the tensioning wheel 230 to provide is the weight of sliding block 242
Several times of power, therefore, the sliding block 242 of lighter weight can also give the relatively high thrust that the tensioning wheel 230 is provided.Again due to quality compared with
The small volume of light sliding block 242, so as to save space, and reduces potential safety hazard.The present invention described also by installing
The graduated scale 293 is set on frame 290 at the wheel shaft 232, and set on the stop section 262 of the fixture 260
Graticule 263, allows a user to be visually known the rate of tension of the conveyer belt 210.In the present invention also by the railway carriage
Set the belt Transmission system 200 to improve the efficiency of cargo handling in 1000, and save manpower.
Embodiment of above is merely illustrative of the technical solution of the present invention and unrestricted, although with reference to embodiment of above pair
The present invention is described in detail, it will be understood by those within the art that, technical scheme can be carried out
Modification or equivalent substitution should not all depart from the spirit and scope of technical solution of the present invention.
Claims (8)
1. a kind of tensile force adjusting device, the tensile force for adjusting conveyer belt, it is characterised in that：The tensile force adjusting device
The thrust supplying module of thrust is provided including tensioning wheel and to the tensioning wheel, the tensioning wheel includes wheel shaft and is set in described
Roller on wheel shaft, the conveyer belt is set around on the roller, and the thrust supplying module includes sliding block, support, connecting rod
And fixture, the connecting rod includes the body of rod and is arranged at the connecting portion of the body of rod, and the sliding block is movably set in the branch
On frame and it is fixed on the body of rod, the connecting portion is movably set on the wheel shaft by the fixture, the fixation
Part includes being additionally provided with through described on stop section and the sliding part that extends of centre along the stop section side, the fixture
Stop section and the mounting hole of the sliding part, when the sliding block is along the bracket slide, the connecting rod promotes the tensioning
Wheel movement, the tensioning wheel tenses the conveyer belt, so as to adjust the tensile force of conveyer belt.
2. tensile force adjusting device as claimed in claim 1, it is characterised in that：The connecting portion is provided with perpendicular to the bar
The chute of body, the sliding part passes through the chute, and the stop section block is in the both side edges of the chute, the one of the wheel shaft
End is locked in the mounting hole, the fixture is fixed on the wheel shaft, and the connecting portion is movably set in into institute
State on wheel shaft, when the sliding block glides along the support, the connecting rod is moved down, and promote the wheel shaft to move.
3. tensile force adjusting device as claimed in claim 1, it is characterised in that：The support includes hypotenuse, and the sliding block is lived
Dynamic to be arranged on the hypotenuse, when the sliding block is still on the hypotenuse, the connecting rod gives the thrust f of the tensioning wheel
=g (sin θ-μ cos θ)/(cos θ+μ sin θs), wherein, g represents the gravity of the sliding block, and μ represents the hypotenuse and the sliding block
Coefficient of friction, θ represents the inclination angle of the hypotenuse.
4. a kind of belt Transmission system, it is characterised in that：The belt Transmission system include conveyer belt and as claim 1~
Tensile force adjusting device any one of 3.
5. belt Transmission system as claimed in claim 4, it is characterised in that：The belt Transmission system also includes mounting bracket,
The tensioning wheel is arranged on mounting bracket, is provided with graduated scale, the stop section and is set at the wheel shaft on the mounting bracket
There is graticule, when the conveyer belt is in original state, the graticule aligns with the initial scale of the graduated scale, the graticule
The scale of the graduated scale of alignment represents the rate of tension of the conveyer belt.
6. belt Transmission system as claimed in claim 5, it is characterised in that：The mounting bracket, which is provided with, to be used to protect the quarter
Spend the protective cover of chi.
7. belt Transmission system as claimed in claim 5, it is characterised in that：The mounting bracket is provided with level trough, the wheel
One end that axle locks the mounting hole is arranged in the level trough, when the sliding block glides along the support, the connection
Bar promotes the wheel shaft to be moved in the level trough.
8. a kind of railway carriage, including bottom plate and the belt Transmission system that is arranged on the bottom plate, it is characterised in that：The belt
Transmission system includes conveyer belt and such as tensile force adjusting device according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510639675.5A CN105172654B (en) | 2015-09-30 | 2015-09-30 | Railway carriage and its belt Transmission system and tensile force adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510639675.5A CN105172654B (en) | 2015-09-30 | 2015-09-30 | Railway carriage and its belt Transmission system and tensile force adjusting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105172654A CN105172654A (en) | 2015-12-23 |
| CN105172654B true CN105172654B (en) | 2017-08-22 |
Family
ID=54895270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510639675.5A Active CN105172654B (en) | 2015-09-30 | 2015-09-30 | Railway carriage and its belt Transmission system and tensile force adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105172654B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112720018A (en) * | 2020-12-25 | 2021-04-30 | 浙江赫科智能装备有限公司 | Numerical control machine tool and machining method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08189551A (en) * | 1995-01-09 | 1996-07-23 | Nippon Seiko Kk | Automatic tensioner |
| CN2465981Y (en) * | 2001-03-05 | 2001-12-19 | 姚天锡 | Automotive compartment moving device |
| CN2665459Y (en) * | 2003-12-16 | 2004-12-22 | 中国科学院电工研究所 | Bi-directional chain-drive tensioning device |
| US8100625B2 (en) * | 2005-04-13 | 2012-01-24 | Lutz David W | Conveyor trailer |
| CN202597613U (en) * | 2012-03-23 | 2012-12-12 | 成都大宏立机器制造有限公司 | Crusher belt tension device |
-
2015
- 2015-09-30 CN CN201510639675.5A patent/CN105172654B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105172654A (en) | 2015-12-23 |
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Effective date of registration: 20211014 Address after: 410200 Shengtong Industrial Park, No. 109, Section 2, Tengfei Road, Wangcheng economic and Technological Development Zone, Changsha City, Hunan Province Patentee after: Shengtong Science and Technology Group Co.,Ltd. Address before: 410205 room 909, Wuqiang science and Technology Park, No. 2, Lutian Road, Changsha high tech Development Zone, Changsha City, Hunan Province Patentee before: HUNAN SNTO TIANLI AUTOMOBILE Co.,Ltd. |
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