CN109723776A - One kind is from tension type telescopic belt guide plate and its rate of tension adjusting method - Google Patents

One kind is from tension type telescopic belt guide plate and its rate of tension adjusting method Download PDF

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Publication number
CN109723776A
CN109723776A CN201910113927.9A CN201910113927A CN109723776A CN 109723776 A CN109723776 A CN 109723776A CN 201910113927 A CN201910113927 A CN 201910113927A CN 109723776 A CN109723776 A CN 109723776A
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China
Prior art keywords
support roller
fixed frame
plate
support
bottom plate
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CN201910113927.9A
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Chinese (zh)
Inventor
闫玉平
张康武
孙亚波
邓良丰
徐长安
吕阳阳
李菲
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China National Heavy Machinery Research Institute Co Ltd
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China National Heavy Machinery Research Institute Co Ltd
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Priority to CN201910113927.9A priority Critical patent/CN109723776A/en
Publication of CN109723776A publication Critical patent/CN109723776A/en
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Abstract

The invention discloses one kind from tension type telescopic belt guide plate and its rate of tension adjusting method, including fixed frame, moving frame and bar nose support plate, the fixed frame is L font, fixed frame includes fixed frame side plate and fixed frame bottom plate, bar nose support plate is connected on fixed frame bottom plate, fixed frame side plate is also connected with telescoping cylinder and the first guide rod, first guide rod passes through moving frame and is connected to bar nose support plate, the connection of second guide rod one end is connected with moving frame, the other end passes through bar nose support plate and is connected with the 5th support roller, the other end of telescoping cylinder passes through bar nose support plate and is connected with the 5th support roller, the 4th support roller is also connected on moving frame, wherein fixed frame side plate is connected with the first support roller group, fixed frame bottom plate is connected with third support roller, belt is wrapped in respectively In a support roller, formed close-shaped.It is pushed forward by telescoping cylinder, accurately can efficiently change belt tightening.

Description

One kind is from tension type telescopic belt guide plate and its rate of tension adjusting method
Technical field
The invention belongs to lathe for machining technical field, more particularly to it is a kind of from tension type telescopic belt guide plate and its rate of tension Adjusting method.
Background technique
It is tight between each equipment especially on the tinuous production of metallurgy industry on all kinds of automatic serial production lines Close linking is to guarantee that unit does not shut down threading and continuous operation essential condition, is used as commonly using telescopic belt guide plate Cross device.Telescopic belt guide plate is to increase telescoping mechanism on the basis of ordinary straps guide plate, allows guide plate in length Realize flexible in direction.Tinuous production telescopic belt guide plate is made of two parts, including telescopic belt and fixed frame, when wanting It asks and links up each equipment when being needed with meeting the functions such as unit threading, telescopic belt guide plate stretches out, idle station position is filled up, It is retracted without using telescopic belt guide plate when Telescopic.
Belt operation is that frictionally drives, it is ensured that the operation of belt normal table must assure that belt and driven roller There is enough frictional force, this requires belts there must be certain tensile force, and belt is made to be in tensioning shape always between son Otherwise state is easy to appear skidding, deviation phenomenon.In order to guarantee the transmission capacity of belt, rate of tension need to be inspected periodically, is such as found not Foot, it is necessary to re-tensioning.When relaxation cases occurs in belt, need to realize that rate of tension is adjusted by manually adjusting strainer Afterwards, it can guarantee the normal use.But structure is complicated for existing strainer, and manual adjustment is inconvenient, low efficiency, and manual adjustment is not Tensile force size is controlled well, adjusts opportunity also bad assurance.
Summary of the invention
The object of the present invention is to provide one kind from tension type telescopic belt guide plate and its rate of tension adjusting method, existing to solve Have in technology belt cause because loosening rate of tension deficiency lead to not to produce and rate of tension variation after be difficult to adjust tensioning The problem of spending.
The present invention is that technical purpose is realized by following technological means, a kind of from tension type telescopic belt guide plate, including Fixed frame, moving frame and bar nose support plate, fixed frame include fixed frame side plate and fixed frame bottom plate, described Fixed frame side plate and fixed frame bottom plate are in L font, and fixed frame plate upper surface is connected with bar nose support plate, mobile Rack is between bar nose support plate and fixed frame side plate, one side of the fixed frame side plate close to bar nose support plate It is also connected with horizontal telescoping cylinder and the first horizontal guide rod, the first guide rod passes through moving frame and is connected to bar nose branch Fagging is also connected with the second horizontal guide rod on moving frame, and the second guide rod other end passes through bar nose support plate, the One end that two guide rods pass through bar nose support plate is also connected with the 5th support roller, and the other end of telescoping cylinder passes through bar nose Support plate is connected with the 5th support roller, is also connected with the 4th support roller, telescoping cylinder, the first guide rod and second below moving frame Guide rod three is mutually parallel, and wherein fixed frame side plate is connected with the first support roller group, and fixed frame bottom plate is connected with Three support rollers, belt return to the first support roller after first supports roller group, third support roller, the 4th support roller, the 5th support roller Group is formed close-shaped.
Further, the first support roller group includes being both connected to first in fixed frame side plate and to be parallel to each other Support roller and the second support roller, the first support roller and the 5th support roller are in sustained height, at the second support roller and third support roller In sustained height, the second support roller is live-roller.
Further, the fixed frame bottom plate is divided into the first fixed frame bottom plate and the second fixed frame bottom plate, and first Fixed frame bottom plate one end is connected with fixed frame side plate, and the second fixed frame bottom plate is close to the side of the first fixed frame bottom plate It is provided with bolt hole, adjustment bolt is connected in bolt hole, the adjustment bolt other end is in contact with the first fixed frame bottom plate, third Support roller is connected on the second fixed frame bottom plate.
Further, the moving frame and the first guide rod touching position are also connected with copper sliding sleeve, bar nose support Plate and the second guide rod contact position are also connected with copper sliding sleeve.
Further, the bar nose support plate puts together on the upper surface of fixed frame bottom plate by bolt.
Further, the belt is through the first support roller group, third support roller front side, the 4th support roller rear side, the 5th The first support roller group is returned after supportting on front side of roller, is formed close-shaped.
A kind of rate of tension adjusting method from tension type telescopic belt guide plate, comprising the following steps:
Telescoping cylinder pushes forward, drives the 5th support roller and the 4th support roller to move forward, so that between five support rollers Distance it is elongated, thus tightening belt, so that the rate of tension of belt becomes larger.
The flexible front and back, the length variation delta L's and telescoping cylinder stroke S of the support roller frame of five support rollers composition Relationship is,Can according to this formula, when design reasonable combination S, LcdAnd θ, so that it may realize rate of tension required for belt,
Wherein, LcdWhen retraction, length between third support roller and the 4th support roller,
θ is the angle of acute angle in third support roller and the 4th support roller line of centres and horizontal line angle when retracting.
The beneficial effects of the present invention are: 1, the position of fourth support roller and fiveth support roller can opposite other support rollers It changes, to be tensioned to belt, so that adjustment rate of tension is more convenient.
2, the rate of tension of belt is only related with the propulsion stroke of telescoping cylinder, only passes through the propulsion stroke of change telescoping cylinder Belt tightening is adjusted, it is more accurate and quick to compare manual adjustment rate of tension, improves production efficiency.
3, by adjusting bolt, the rate of tension of belt can be finely adjusted, applicability is more preferable when installing equipment.
Detailed description of the invention
Fig. 1 is structure diagram of the invention;
Fig. 2 is the structural front view when present invention retracts;
Structural front view when Fig. 3 is present invention elongation;
Fig. 4 is the first guide rod dependency structure cross-sectional view;
Fig. 5 is the second guide rod dependency structure cross-sectional view;
Fig. 6 is telescoping cylinder dependency structure cross-sectional view;
Fig. 7 is that belt winds state when the present invention retracts;
Belt winds state when Fig. 8 is present invention elongation;
Fig. 9 is that third support roller and the flexible front and back Belt Length of the 4th support roller change schematic diagram.
In figure: 1, fixed frame;1-1, fixed frame side plate;1-2, bar nose support plate;1-3, fixed frame bottom plate; 2, moving frame;4, belt;5, adjustment bolt;6-1, the first guide rod;6-2, the second guide rod;7, telescoping cylinder;7-1, first Support roller;7-2, the second support roller;7-3, third support roller;7-4, the 4th support roller;7-5, the 5th support roller.
The present invention is described in further details below with reference to accompanying drawings and embodiments;
Specific embodiment
[embodiment 1]
As shown in figures 1 to 6, one kind is from before tension type telescopic belt guide plate, including fixed frame 1, moving frame 2 and guide plate Support plate 1-2 is held, fixed frame 1 includes fixed frame side plate 1-1 and fixed frame bottom plate 1-3, the fixed frame side plate 1-1 It is in L font with fixed frame bottom plate 1-3, the upper surface fixed frame bottom plate 1-3 is connected with bar nose support plate 1-2, moving machine Frame 2 is located between bar nose support plate 1-2 and fixed frame side plate 1-1, and fixed frame side plate 1-1 is supported close to bar nose Plate 1-2's is also connected with horizontal telescoping cylinder 7 and the first horizontal guide rod 6-1, the first guide rod 6-1 across moving machine on one side Frame 2 is connected to bar nose support plate 1-2, and the second horizontal guide rod 6-2, the second guide rod are also connected on moving frame 2 The 6-2 other end passes through bar nose support plate 1-2, and the second guide rod 6-2 is also connected with across one end of bar nose support plate 1-2 There is the 5th support roller 7-5, the other end of telescoping cylinder 7 passes through bar nose support plate 1-2 and is connected with the 5th support roller 7-5, mobile The 4th support roller 7-4 is also connected with below rack 2, telescoping cylinder 7, the first guide rod 6-1 and the second guide rod 6-2 three are mutually In parallel, wherein 1 side plate of fixed frame is connected with the first support roller group, and fixed frame bottom plate 1-3 is connected with third support roller 7-3, Belt 4 returns to the first support roller after first supports roller group, third support roller 7-3, the 4th support roller 7-4, the 5th support roller 7-5 Group is formed close-shaped.
Fixed frame 1 includes fixed frame side plate 1-1 and fixed frame bottom plate 1-3, fixed frame side plate 1-1 and fixed machine The entirety of both frame bottom plate 1-3 is in L font, is connected with vertical front edge of board support plate 1-2 on fixed frame bottom plate 1-3, before plate The end top support plate 1-2 is provided with several apertures, passes through for telescoping cylinder 7 and the second guide rod 6-2.
Horizontal telescoping cylinder 7 is connected on fixed frame side plate 1-1, the other end of telescoping cylinder 7 is supported across bar nose Plate 1-2 is connected with the 5th support roller 7-5, to push the 5th support roller 7-5 to move forward from rear, telescoping cylinder 7 is close to the 5th That end of support roller 7-5 is supported by bar nose support plate 1-2, and telescoping cylinder 7 is also to hang skyborne 5th support roller 7-5 Support is provided.
The first guide rod 6-1, the first guide rod 6-1 other end and bar nose are also connected on fixed frame side plate 1-1 Support plate 1-2 is connected.
The hole passed through for the first guide rod 6-1 is provided on moving frame 2, moving frame 2 is connected by the sliding of this hole It connects on the first guide rod 6-1, so that moving frame 2 is when advancing, is moved by this hole along the first guide rod 6-1, The second guide rod 6-2 is also connected on moving frame 2, the second guide rod 6-2 other end passes through the top front edge of board support plate 1-2 Aperture is connected with the 5th support roller 7-5, and the second guide rod 6-2 also provides support to hang skyborne 5th support roller 7-5, mobile The top of rack 2 is connected to the first guide rod 6-1 and the second guide rod 6-2, in the first guide rod 6-1 and the second guide rod 6-2 On the moving frame 2 of lower section, and it is also connected with the 4th support roller 7-4 on one side close to upper guide plate front support plate 1-2.
Wherein the first guide rod 6-1, the second guide rod 6-2 and telescoping cylinder 7 are horizontal, and mutually equal between any two Row.
When in use, telescoping cylinder 7 pushes the 5th support roller 7-5 to advance, when the 5th support roller 7-5 advances, because second leads It is fixed to bar 6-2 length, so the second guide rod 6-2 is also in the movement for moving forward, and being connected with the second guide rod 6-2 Also therewith forward, because moving frame 2 is slidably connected on the first guide rod 6-1, moving frame 2 is rack 2 when advancing Advance along the first guide rod 6-1, the first guide rod 6-1 thereby produces the effect of guiding, and moving frame 2 advances, moving machine 4th support roller 7-4 of 2 lower section of frame also advances therewith.
1 side plate of fixed frame is connected with the first support roller group, and 1 bottom plate of fixed frame is connected with third support roller 7-3, belt 4 return to the first support roller group after first supports roller group, third support roller 7-3, the 4th support roller 7-4, the 5th support roller 7-5, Form an end to end enclosed construction.
[embodiment 2]
As shown in figures 1 to 6, the first support roller group includes being both connected in fixed frame side plate 1-1 and being parallel to each other First support roller 7-1 and the second support roller 7-2, the first support roller 7-1 and the 5th support roller 7-5 is in sustained height, and second Support roller 7-2 and third support roller 7-3 is in sustained height, and the second support roller 7-2 is live-roller, is electrically connected to a power source.4 shape of belt At enclosed construction present concave character type.
The fixed frame bottom plate 1-3 points are the first fixed frame bottom plate 1-3-1 and the second fixed frame bottom plate 1-3-2, First fixed frame one end bottom plate 1-3-1 is connected with fixed frame side plate 1-1, and the second fixed frame bottom plate 1-3-2 is close to first The side of fixed frame bottom plate 1-3-1 is provided with bolt hole, and adjustment bolt 5,5 other end of adjustment bolt and are connected in bolt hole One fixed frame bottom plate 1-3-1 is in contact, and third support roller 7-3 is connected on the second fixed frame bottom plate 1-3-2.
Fixed frame bottom plate 1-3 is divided to for the first fixed frame bottom plate 1-3-1 and the second fixed frame bottom plate 1-3-2 two Point, the first fixed frame bottom plate 1-3-1 is connected with fixed frame side plate 1-1, and the second fixed frame bottom plate 1-3-2 is solid close to first The side for determining framework soleplate 1-3-1 is provided with bolt hole, and adjustment bolt 5,5 other end of adjustment bolt and first are connected in bolt hole Fixed frame bottom plate 1-3-1 is in contact, the first fixed frame bottom plate 1-3-1 adjustable in this way and the second fixed frame bottom plate 1- Spacing between 3-2, to adjust third support roller 7-3 to the second support roller 7-2 and to the distance of the 4th support roller 7-4, from And during installation, adjust the rate of tension of belt 4.
The moving frame 2 and the first guide rod 6-1 touching position are also connected with copper sliding sleeve, bar nose support plate 1-2 Copper sliding sleeve is also connected with the second contact position guide rod 6-2.
When telescoping cylinder 7 pushes the 5th support roller 7-5 to advance, the second guide rod 6-2 being connected with the 5th support roller 7-5 exists Sliding in the hole of bar nose support plate 1-2, thus bar nose support plate 1-2 and the second contact position guide rod 6-2 also It is connected with copper sliding sleeve, forms sliding friction pair;
Similarly, moving frame 2 can be slided when advancing along the first guide rod 6-1, moving frame 2 and the first guide rod 6-1 Touching position is also connected with copper sliding sleeve, forms sliding friction pair.
And telescoping cylinder 7 because include cylinder body and stretching pusher portion, 7 cylinder body of telescoping cylinder pass through bar nose support plate 1- 2, telescoping cylinder 7 is that the intracorporal push rod of cylinder advances when being pushed forward, and hole of the push rod not with bar nose support plate 1-2 produces relative sliding, Copper sliding sleeve is not needed.
The bar nose support plate 1-2 puts together on the upper surface of fixed frame bottom plate 1-3 by bolt.It can incite somebody to action in this way Bar nose support plate 1-2 is disassembled, and different positions on fixed frame bottom plate 1-3 is mounted on, to adapt to different length Telescoping cylinder 7 or the first fixed frame bottom plate 1-3-1 and the second fixed frame bottom plate 1-3-2 between after spacing becomes larger, because flexible 7 length of cylinder is constant, and bar nose support plate 1-2 is mounted on the position of fixed frame bottom plate 1-3 more posteriorly.
The belt 4 is through the first support roller group, the front side third support roller 7-3, the 4th support roller 7-4 rear side, the 5th support The first support roller group is returned after on front side of roller 7-5, is formed close-shaped.The enclosed construction that belt 4 is constituted in this way is in concave character type.
[embodiment 4]
As shown in Fig. 2, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, a kind of rate of tension adjusting method from tension type telescopic belt guide plate, The following steps are included:
Telescoping cylinder 7 pushes forward, and the 5th support roller 7-5 and the 4th support roller 7-4 is driven to move forward, so that five supports The distance between roller is elongated, thus tightening belt 4, so that the rate of tension of belt 4 becomes larger.
Shown in Fig. 2, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, it is not pushed forward from the telescoping cylinder 7 of tension type telescopic belt guide plate, is integrally in Retracted mode, A, B, C, D, E have respectively represented the first support roller 7-1 under retracted mode, the second support roller 7-2, third support roller The position of 7-3, the 4th support roller 7-4 and the 5th support roller 7-5.
As shown in figures 3 and 8, it is pushed forward from the telescoping cylinder 7 of tension type telescopic belt guide plate, is integrally in stretching state, A, B, C, D ', E ' have respectively represented the first support roller 7-1 under stretching state, the second support roller 7-2, third support roller 7-3, the 4th Support the position of roller 7-4 and the 5th support roller 7-5.
Wherein the first support roller 7-1, the second support roller 7-2 and third support roller 7-3 are after telescoping cylinder 7 is pushed forward, and position is simultaneously Do not generate variation, thus under retracted mode the position of the first support roller 7-1, the second support roller 7-2 and third support roller 7-3 with Telescoping cylinder 7 is pushed forward consistent when the position of the first support roller 7-1, the second support roller 7-2 and third support roller 7-3 under rear state.
The rate of tension of belt 4 can be understood as the length length more available than support roller frame of belt 4, as shown in fig. 7, Belt 4 is around the first support roller 7-1, the second support roller 7-2, third support roller 7-3, the 4th support roller 7-4 and the 5th support roller 7-5 Length be exactly the available length of support roller frame,
It can be seen that the flexible front and back of telescoping cylinder 7 according to Fig. 7 and Fig. 8, the first support roller 7-1, the second support roller 7-2 and the No change has taken place for three support roller 7-3 three positions, wherein because passing through between the 4th support roller 7-4 and the 5th support roller 7-5 Second guide rod 6-2 is connected, and no change has taken place for the relative position for front and back the 4th support roller 7-4 and the 5th support roller 7-5 that stretches, So between the 4th support roller 7-4 and the 5th support roller 7-5 belt 4 length there is no variation.
Only the distance between the first support roller 7-1 to the 5th support roller 7-5 and third support roller 7- to change The distance between 3 to the 4th support roller 7-4.
It is so available, under retracted mode, the available length L of support roller frame,
L=L0+Lae+Lcd,
L0For the flexible front and back unchanged part of support roller lengths of frame, i.e. the first support roller 7-1 to the second support roller 7-2 Between length and the second support roller 7-2 to third support roller 7-3 between length,
LaeWhen to retract, length between the first support roller 7-1 to the 5th support roller 7-5,
LcdLength when to retract, between third support roller 7-3 and the 4th support roller 7-4.
Under elongation state, it is assumed that telescoping cylinder 7 has advanced after S, the available length L ' of support roller frame,
L '=L0+Lae′+Lcd′,
Lae′After being stretched out for telescoping cylinder 7, length between the first support roller 7-1 to the 5th support roller 7-5,
Lcd′Length after being stretched out for telescoping cylinder 7, between third support roller 7-3 and the 4th support roller 7-4.
Before and after then stretching, the length variation delta L of support roller frame is
Δ L=L '-L=(Lae′-Lae)+(Lcd′-Lcd),
Wherein, before and after stretching, the variable quantity of the length between the first support roller 7-1 and the 5th support roller 7-5 is telescoping cylinder 7 The stroke S of advance, then Lae′-Lae=S,
Then Δ L=L '-L=(Lae′-Lae)+(Lcd′-Lcd)=S+Lcd′-Lcd
As shown in figure 9, retract when the 4th support roller 7-4, elongation when the 4th support roller 7-4, third support roller 7-3 position A triangle DD ' C can be regarded as, wherein the length of DD ' is S, because the 4th support roller 7-4 is synchronous with the 5th support roller 7-5 Movement, the 5th support roller 7-5 have advanced S, and the 4th support roller 7-4 has also advanced S.
Because of Δ L=S+Lcd′-Lcd, in triangle DD ' C, the side-CD in+CD ' DD ' can be regarded as, worked as in triangle In, the sum of both sides are greater than third side, so Δ L > 0, also means that, after telescoping cylinder 7 is pushed forward, the length of support roller frame offer It is elongated, and the length of belt 4 is constant, but 4 sets of belt on support roller frame, as support roller lengths of frame becomes Change, belt 4 is passively elongated, that is to say, that belt 4 is tightened up.Finally realize the purpose of tightening belt 4.
[embodiment 5]
The flexible front and back, the length variation delta L and 7 stroke S of telescoping cylinder of the support roller frame of five support rollers composition Relationship be,Can be according to this formula, when design, reasonably combines S、LcdAnd θ, so that it may realize rate of tension required for belt,
Wherein, LcdWhen retraction, length between third support roller 7-3 and the 4th support roller 7-4,
θ is the angle of third support roller 7-3 and the 4th support roller 7-4 line of centres and acute angle in horizontal line angle when retracting Degree.
As shown in figure 9, doing vertical line upwards by C point, vertical line and DD ' horizontal line intersection point are D ",
Cd "=cd × sin θ
D ' d "=dd "-dd '=cd × (cos θ)-S
SoWherein cd, that is, Lcd
After the relationship for finding out the length variation delta L and 7 stroke S of telescoping cylinder of the support roller frame of five support rollers composition, Can be found out according to desired Δ L amount telescoping cylinder 7 should advance how many distances or 7 advance S of telescoping cylinder when, Δ L changes How much, accurately to control the variation of rate of tension.
The well-known components and common structure of component and the structure category industry that the present embodiment does not describe in detail or common hand Section, does not describe one by one here.

Claims (8)

1. a kind of from tension type telescopic belt guide plate, it is characterised in that: before fixed frame (1), moving frame (2) and guide plate It holds support plate (1-2), fixed frame (1) includes fixed frame side plate (1-1) and fixed frame bottom plate (1-3), the fixed machine Frame side plate (1-1) and fixed frame bottom plate (1-3) are in L font, and the upper surface fixed frame bottom plate (1-3) is connected with bar nose branch Fagging (1-2), moving frame (2) are located between bar nose support plate (1-2) and fixed frame side plate (1-1), fixed frame First guiding that is on one side also connected with horizontal telescoping cylinder (7) and level of the side plate (1-1) close to bar nose support plate (1-2) Bar (6-1), the first guide rod (6-1) passes through moving frame (2) and is connected to bar nose support plate (1-2), on moving frame (2) It is also connected with horizontal the second guide rod (6-2), the second guide rod (6-2) other end passes through bar nose support plate (1-2), the Two guide rods (6-2) are also connected with the 5th support roller (7-5) across the one end of bar nose support plate (1-2), telescoping cylinder (7) The other end passes through bar nose support plate (1-2) and is connected with the 5th support roller (7-5), and moving frame (2) lower section is also connected with the Four support rollers (7-4), telescoping cylinder (7), the first guide rod (6-1) and the second guide rod (6-2) three are mutually parallel, wherein solid Determine rack (1) side plate and be connected with the first support roller group, fixed frame bottom plate (1-3) is connected with third support roller (7-3), belt (4) first is returned after first supports roller group, third support roller (7-3), the 4th support roller (7-4), the 5th support roller (7-5) Roller group is supportted, is formed close-shaped.
2. according to claim 1 a kind of from tension type telescopic belt guide plate, it is characterised in that: the first support roller group Including being both connected to the first support roller (7-1) and the second support roller (7-2) that in fixed frame side plate (1-1) and are parallel to each other, First support roller (7-1) and the 5th support roller (7-5) are in sustained height, the second support roller (7-2) and third support roller (7-3) In sustained height, the second support roller (7-2) is live-roller.
3. according to claim 1 a kind of from tension type telescopic belt guide plate, it is characterised in that: the fixed frame bottom plate (1-3) is divided into the first fixed frame bottom plate (1-3-1) and the second fixed frame bottom plate (1-3-2), the first fixed frame bottom plate (1- 3-1) one end is connected with fixed frame side plate (1-1), and the second fixed frame bottom plate (1-3-2) is close to the first fixed frame bottom plate The side of (1-3-1) is provided with bolt hole, is connected in bolt hole adjustment bolt (5), and adjustment bolt (5) other end and first is fixed Framework soleplate (1-3-1) is in contact, and third support roller (7-3) is connected on the second fixed frame bottom plate (1-3-2).
4. according to claim 1 a kind of from tension type telescopic belt guide plate, it is characterised in that: the moving frame (2) Copper sliding sleeve is also connected with the first guide rod (6-1) touching position, bar nose support plate (1-2) and the second guide rod (6-2) Contact position is also connected with copper sliding sleeve.
5. according to claim 1 a kind of from tension type telescopic belt guide plate, it is characterised in that: the bar nose support Plate (1-2) puts together on the upper surface of fixed frame bottom plate (1-3) by bolt.
6. according to claim 1 a kind of from tension type telescopic belt guide plate, it is characterised in that: the belt (4) is through the One support roller group, third support roller (7-3) front side, the 4th support roller (7-4) rear side, the 5th support roller (7-5) return behind front side First support roller group, forms close-shaped.
7. a kind of rate of tension adjusting method from tension type telescopic belt guide plate, which comprises the following steps:
Telescoping cylinder (7) pushes forward, drives the 5th support roller (7-5) and the 4th support roller (7-4) to move forward, so that five branch It is elongated to support the distance between roller, thus tightening belt (4), so that the rate of tension of belt (4) becomes larger.
8. a kind of rate of tension adjusting method from tension type telescopic belt guide plate according to claim 7, it is characterised in that: Flexible front and back, the length variation delta L and the relationship of telescoping cylinder (7) stroke S of the support roller frame of five support rollers composition be,According to this formula, when design reasonable combination S, LcdAnd θ, just Rate of tension required for belt may be implemented,
Wherein, LcdWhen retraction, length between third support roller (7-3) and the 4th support roller (7-4),
θ is the angle of acute angle in third support roller (7-3) and the 4th support roller (7-4) line of centres and horizontal line angle when retracting Degree.
CN201910113927.9A 2019-02-14 2019-02-14 One kind is from tension type telescopic belt guide plate and its rate of tension adjusting method Pending CN109723776A (en)

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