CN202318435U - Clamping device for rapidly replacing cutting blade - Google Patents
Clamping device for rapidly replacing cutting blade Download PDFInfo
- Publication number
- CN202318435U CN202318435U CN2011204564236U CN201120456423U CN202318435U CN 202318435 U CN202318435 U CN 202318435U CN 2011204564236 U CN2011204564236 U CN 2011204564236U CN 201120456423 U CN201120456423 U CN 201120456423U CN 202318435 U CN202318435 U CN 202318435U
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- locating piece
- moving knife
- stationary knife
- knife
- stationary
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Abstract
The utility model relates to a clamping device for rapidly replacing a cutting blade. The clamping device consists of a sample fixing mechanism, a movable cutter adjusting mechanism and a fixed cutter adjusting mechanism, wherein the thicknesses of a movable blade and a fixed blade, the cutting edge shapes of the blades and the like can be selected freely; an open angle between the movable blade and the fixed blade can be changed along with the replacement of different positioning blocks; the distance between the sampling fixing mechanism and the movable cutter adjusting mechanism and the distance between the sample fixing mechanism and the fixed cutter adjusting mechanism can be adjusted according to the length of a test sample; and the sample fixing mechanism is fixed on a universal tester workbench with a T-shaped groove through a bolt. According to the device, the influences of factors such as a blade thickness, a blade sliding cutting angle, an open angle between the cutting edges of the movable cutter and the fixed cutter, and different cutting edge shapes on the cutting performance of the blades can be eliminated conveniently. The clamping device has the characteristics of simple structure, easiness for installing, convenience and rapidness for adjusting the blades, safety, reliability, and the like.
Description
(1) technical field
The present invention relates to a kind of clamping device of fast changeable cutting blade, belong to agricultural machinery and equipment field.
(2) technical background
Crop stem is important living resources in the crops production system, and in recent years, along with biomass material product demand amounts such as livestock feed, high-quality paper product, fuel alcohol increase severely, crop stem is developed widely.The resemblance of crop stems such as paddy and wheat shows as soft, thin; This type crop of comparing, because its biological nature is different with growth mechanism, their stem stalk resemblance is obviously hard, slightly for cotton, sugarcane, giantreed, seeding corn and other crops; The hardness and the rigidity of stem stalk are big; Reach 25 mm like the cotton stalk diameter, cane stalk stalk diameter reaches 50 mm, and Arundo donax linn stem stalk diameter reaches 35 mm.
Present stage, in a lot of areas, people gather in the crops hard, the thick stem stalk crop of this type and still adopt traditional harvesting mode, and mechanization degree is low, exists problems such as labour intensity is big, production cost is high, operating efficiency is low.Aspect straw chopping; The research of China aspect soft straw choppings such as rice straw, wheat straw has large development; That is that all right is ripe but to hard, the thick stem stalk crop chopping of this type such as cotton, sugarcane technology; Especially seldom, so harvesting blade, the chopping blade developed to hard, the thick stem stalk crop of this type seem particularly important to the research of cutting this type of hard, thick stem stalk blade.
Because the factor that influences the blade cuts performance has a lot, like the thickness of blade land shape, blade, blade inclination angle etc., so be equipped with special blade holding device better the blade cutting performance study.Blade holding device must make cutting blade dress, clip admittedly, be convenient to change the blade of different parameters, be convenient to adjust the blade slip cutting angle, be convenient to be connected, and safe and reliable with universal testing machine, this kind tool can't well satisfy above-mentioned requirements at present.
(3) summary of the invention
In order to address the above problem; The invention provides the blade holding device of a kind of fast changeable blade, adjustable blade slip cutting angle; Be a kind of fast changeable cutting blade of and the matching used novelty of universal testing machine and the device of adjustment blade slip cutting angle, have simple in structurely, be easy to install; Advantages such as blade is easy to adjust, quick, safe, the clamping of cutting blade when the present invention also can be used for other object cutting.
A kind of clamping device of fast changeable cutting blade is made up of sample fixed mechanism, moving knife guiding mechanism, stationary knife guiding mechanism.Wherein:
Described sample fixed mechanism is by last V-type locating piece, down the V-type locating piece is formed, and can the firm grip diameter be not more than the cutting sample of 60 mm.Described sample fixed mechanism is placed on the universal testing machine workbench that has T-slot, and following V-type locating piece is connected with the workbench of universal testing machine, and the sample fixed mechanism can move on the workbench of universal testing machine through T-slot;
Described moving knife guiding mechanism is made up of cutting blade, moving knife briquetting, moving knife fixed block, alignment pin, moving knife locating piece a, moving knife locating piece b, moving knife adjustment block; According to cutting sample needs many group cutting blades, moving knife locating piece a, moving knife locating piece b and moving knife adjustment blocks are set, every group of moving knife locating piece a, moving knife locating piece b are all identical with its corresponding cutting blade thickness with moving knife adjustment block; Described cutting blade is a rectangle, and an end is provided with circular hole, so that connect with the moving knife fixed block; Described moving knife locating piece a, moving knife locating piece b are shaped as right angled triangle; Described moving knife adjustment block is a rectangular block, has oval slotted hole on it, its position-adjustable; Described moving knife fixed block and alignment pin be linked together; Before the described moving knife guiding mechanism assembling; At first according to the selected cutting blade of the requirement of cutting sample; And the size of definite cutting blade slip cutting angle α; Selected simultaneously have 1 moving knife locating piece a of same thickness, 1 moving knife locating piece b and 2 moving knife adjustment blocks with cutting blade, and the equal and opposite in direction of the slip cutting angle α of the hypotenuse inclination angle of moving knife locating piece a and moving knife locating piece b and selected cutting blade; When described moving knife guiding mechanism assembles; Cutting blade is placed on the moving knife fixed block; And the hypotenuse of moving knife locating piece a at moving knife locating piece a and cutting blade faying face place near cutting blade; The right-angle side of moving knife locating piece a is near the moving knife fixed block, and another right-angle side of moving knife locating piece a is near a moving knife adjustment block; Near cutting blade, the right-angle side of moving knife locating piece b is near the moving knife fixed block at moving knife locating piece b and cutting blade faying face place for the hypotenuse of moving knife locating piece b, and another right-angle side of moving knife locating piece b is near another piece moving knife adjustment block; Described moving knife briquetting presses cutting blade, moving knife locating piece a, moving knife locating piece b and moving knife adjustment block, and moving knife briquetting, cutting blade, moving knife locating piece and moving knife adjustment block are fixed on the moving knife fixed block; The alignment pin on the said moving knife guiding mechanism and the connecting axle of universal testing machine are connected to a fixed;
Described stationary knife guiding mechanism is made up of ledger-plate, stationary knife briquetting, stationary knife fixed block, stationary knife locating piece a, stationary knife locating piece b, stationary knife adjustment block; According to cutting sample needs many group ledger-plates, stationary knife locating piece a, stationary knife locating piece b and stationary knife adjustment block are set, all the thickness with its corresponding ledger-plate is identical for every group of stationary knife locating piece a, stationary knife locating piece b and stationary knife adjustment block; Described ledger-plate is a rectangle, and an end is provided with circular hole; Ledger-plate connects with the stationary knife fixed block; Described stationary knife locating piece a, stationary knife locating piece b are shaped as right angled triangle; Described stationary knife adjustment block is a rectangular block, has oval slotted hole on it, stationary knife adjustment stop location scalable; Before the described stationary knife guiding mechanism assembling; At first according to the selected ledger-plate of the requirement of cutting sample; And the size of definite ledger-plate slip cutting angle β; Selected simultaneously have 1 stationary knife locating piece of same thickness, 1 stationary knife locating piece b and 2 stationary knife adjustment blocks with ledger-plate, and the equal and opposite in direction of the slip cutting angle β of the hypotenuse inclination angle of stationary knife locating piece a and stationary knife locating piece b and selected cutting blade; When described stationary knife guiding mechanism assembles; At first ledger-plate is placed on the stationary knife fixed block; And with the hypotenuse of stationary knife locating piece a at stationary knife locating piece a and ledger-plate faying face place near ledger-plate; The right-angle side of stationary knife locating piece a is near the stationary knife fixed block, and another right-angle side of stationary knife locating piece a is near a stationary knife adjustment block; Near ledger-plate, the right-angle side of stationary knife locating piece b is near the stationary knife fixed block at stationary knife locating piece b and ledger-plate faying face place for the hypotenuse of stationary knife locating piece b, and another right-angle side of stationary knife locating piece b is near another piece stationary knife adjustment block; The stationary knife briquetting is pressed ledger-plate, stationary knife locating piece and stationary knife adjustment block, stationary knife briquetting, ledger-plate, stationary knife locating piece and stationary knife adjustment block are fixed on the stationary knife fixed block; Described stationary knife fixed block is fastened on the T-slot of universal testing machine workbench.
According to requirement of experiment, can select the thickness different blades and position with the adjustment block and the locating piece blade of its corresponding thickness, so that obtain to have different slip cutting angles (
β,
α) or moving knife and stationary knife blade between open-angle (γ=
β+
α).So, utilize this device, can study the influence of factor blade cutting performances such as open-angle and different cutting edge shapes between blade thickness, blade slip cutting angle, moving knife and stationary knife.
(4) description of drawings
Fig. 1 assembles the front view of sketch map for the present invention;
Fig. 2 assembles the left view of sketch map for the present invention;
Fig. 3 be the A of Fig. 1 to view, remove cutter briquetting, bolt etc.;
Fig. 4 is that the B of Fig. 1 is to cutaway view.
Among the figure: 1. descend the V-type locating piece, 2. crop stem is 3. gone up the V-type locating piece, 4a. holding screw a, 4b. holding screw b; 4c. holding screw c, 5a. moving knife briquetting a, 5b. stationary knife briquetting b, 6. alignment pin, 7. moving knife fixed block; 8a. plain washer a, 8b. plain washer b, 8c. plain washer c, 8d. plain washer d, 9a. spring washer a; 9b. spring washer b, 9c. spring washer c, 9d. spring washer d, 10a. nut a, 10b. nut b; 10c. nut c, 10d. nut d, 11. cutting blades, 11a. moving knife locating piece a and cutting blade faying face, 11b. moving knife locating piece b and cutting blade faying face; 12. ledger-plate, 12a. stationary knife locating piece a and ledger-plate faying face, 12b. stationary knife locating piece b and ledger-plate faying face, 13. stationary knife fixed blocks, 14a. moving knife locating piece a; 14b. moving knife locating piece b, 15a. moving knife adjustment block 15b. stationary knife adjustment block, 16a. stationary knife locating piece a, 16b. stationary knife locating piece b, 17a. bolt a; 17b. bolt b, 17c. bolt c, 17d. bolt d, 18. connecting axles, 19. bands are with the workbench of T-slot.
(5) specific embodiment
Accompanying drawing is one embodiment of the present of invention, but is not used for limiting scope of the present invention.
The present invention relates to a kind of clamping device of fast changeable cutting blade, form by sample fixed mechanism, moving knife guiding mechanism, stationary knife guiding mechanism.Introduce practical implementation method of the present invention below in conjunction with accompanying drawing.
In the drawings, the sample fixed mechanism is connected with T-slot (19) on the universal testing machine workbench through bolt d (17d), nut d (10d) etc.; The moving knife guiding mechanism links to each other with connecting axle (18) on the universal testing machine through alignment pin (6); Alignment pin (6) is gone up a screwed end and is linked to each other with moving knife fixed block (7), and the pin-and-hole kissing on the other end and the connecting axle (18) merges with holding screw b (4b) fixing; The stationary knife guiding mechanism is connected with T-slot (19) on the universal testing machine workbench through bolt d (17d), nut d (10d) etc.After bolt d (17d) was tightened, the sample fixed mechanism can be fixed on the workbench of universal testing machine; As bolt d (17d) when not being tightened, the sample fixed mechanism can slide along the T-slot direction on the workbench of universal testing machine, so that according to the add length adjustment sample fixed mechanism of holding sample and the distance between the stationary knife guiding mechanism.After the distance adjustment between sample fixed mechanism and the stationary knife guiding mechanism was good, the d that tights a bolt (17d) was fixed on the workbench of universal testing machine the sample fixed mechanism, guaranteed cutting everything goes well with your work to carry out.
The sample fixed mechanism is by descending V-type locating piece (1), last V-type locating piece (3), bolt c (17c) etc. to form.Crop stem (2) with certain-length is placed on down on the V-type groove of V-type locating piece (1); Compress V-type locating piece (3) then in the above; And V-type locating piece (1) is aligned mutually with the bolt hole of last V-type locating piece (3); Load onto plain washer c (8c), spring washer c (9c), bolt c (17c), behind the fastening nut c (10c), crop stem (2) just can be securely held.
The moving knife guiding mechanism is made up of moving knife briquetting (5a), alignment pin (6), moving knife fixed block (7), moving knife locating piece a (14a), moving knife adjustment block (15a), moving knife locating piece b (14b), bolt a (17a) etc.
Be placed on cutting blade (11), moving knife locating piece a (14a), moving knife locating piece b (14b) on the moving knife fixed block (7); Let moving knife locating piece a (14a) and cutting blade (11) locate to match at moving knife locating piece a and moving knife faying face (11a); Moving knife locating piece b (14b) locates to match at moving knife locating piece b and moving knife faying face (11b) with cutting blade (11); Move moving knife adjustment block (15a) then and makes it be close to moving knife locating piece a (14a), moving knife locating piece b (14b), make moving knife have a specific slip cutting angle α; Then press cutting blade (11), moving knife locating piece a (14a), moving knife locating piece b (14b) and moving knife adjustment block (15a) with moving knife briquetting (5a); And the position, hole on moving knife briquetting (5a) and the moving knife fixed block (7) is aligned, load onto plain washer a (8a), spring washer a (9a), nut a (10a), bolt a (17a) and tighten; In addition, because cutting blade (11) thickness error etc. is former thereby make its activity, on moving knife briquetting (5a), be processed with screwed hole, holding screw a (4a) is housed, make the moving knife clamping firm for preventing.
After the moving knife guiding mechanism assembled; The moving knife guiding mechanism is by the duty requirement; Fixing through the merging of the pin-and-hole kissing on the connecting axle (18) of alignment pin (6) and universal testing machine with holding screw b (4b), make the fixation of moving knife guiding mechanism, can not come off, rotate.
The stationary knife guiding mechanism is made up of stationary knife briquetting (5b), stationary knife fixed block (13), stationary knife locating piece a (16a), stationary knife locating piece b (16b), stationary knife adjustment block b (15b) etc.
Be placed on ledger-plate (12), stationary knife locating piece a (16a), stationary knife locating piece b (16b) on the stationary knife fixed block (13); Let ledger-plate (12) and stationary knife locating piece a (16a) locate to match at stationary knife locating piece a and stationary knife faying face (12a); Ledger-plate (12) is located to match at stationary knife locating piece b and moving knife faying face (12b) with stationary knife locating piece b (16b); Then; Move stationary knife adjustment block (15b) and makes it be close to stationary knife locating piece a (16a), stationary knife locating piece b (16b), make stationary knife have a specific slip cutting angle β; Then press ledger-plate (12), stationary knife locating piece a (16a), stationary knife locating piece b (16b) and stationary knife adjustment block (15b) with stationary knife briquetting (5b); And the position, hole on stationary knife briquetting (5b) and the stationary knife fixed block (13) is aligned, load onto plain washer b (8b), spring washer b (9b), nut b (10b), bolt b (17b) and tighten; In addition, because ledger-plate (12) thickness error etc. is former thereby make its activity, on stationary knife briquetting (5b), be processed with screwed hole, holding screw c (4c) is housed, make the stationary knife clamping firm for preventing.
After the stationary knife guiding mechanism assembled; On T-slot, move the stationary knife guiding mechanism; Make the distance between cutting blade (11) and the ledger-plate (12) be about 0.5 mm; Through bolt d (17d) the stationary knife guiding mechanism is connected with T-slot (19) on the universal testing machine workbench then, and fastening nut d (10d) is fixing.
After the stationary knife guiding mechanism is fixing; Adjust the distance between sample fixed mechanism and stationary knife guiding mechanism according to the length of working space, stalk, be connected and fixed the T-slot (19) on sample fixed mechanism and the universal testing machine workbench through bolt d (17d), nut d (10d) at last.
During actual the use, the thickness of the blade of selecting for use is not quite similar, and the present invention well satisfies this demand, can freely select the thickness of blade.After cutting blade and ledger-plate are confirmed, only need select for use and cutting blade and the corresponding to adjustment block of ledger-plate thickness (15a, 15b), locating piece (14a, 14b, 16a, 16b), and both can their mutual combine and assemble together.The present invention can change the slip cutting angle of moving knife and stationary knife and the open-angle γ between two cutter blades as required; Only need to change different moving knife locating piece (14a, 14b), stationary knife locating piece (16a, 16b); Itself and cutting blade (11) or ledger-plate (12) are matched, thereby let, keep between the stationary knife sword a specific open-angle γ.Can study the influence of factor blade cutting performances such as open-angle and different cutting edge shapes between blade thickness, blade slip cutting angle, moving knife and stationary knife with this.
The present invention can reach the purpose of quick replacing blade, adjustment blade slip cutting angle, have simple in structure, be easy to installation and maintenance, blade characteristics such as quick, safe and reliable easy to adjust, have better practicability and promotion prospect.
Claims (1)
1. the clamping device of a fast changeable cutting blade is characterized in that being made up of sample fixed mechanism, moving knife guiding mechanism, stationary knife guiding mechanism; Wherein:
Described sample fixed mechanism is made up of last V-type locating piece, following V-type locating piece, is used for the cutting sample that the clamping diameter is not more than 60 mm; Described sample fixed mechanism is placed on the universal testing machine workbench that has T-slot, and following V-type locating piece is connected with the workbench of universal testing machine, and the sample fixed mechanism moves on the workbench of universal testing machine through T-slot;
Described moving knife guiding mechanism is made up of cutting blade, moving knife briquetting, moving knife fixed block, alignment pin, moving knife locating piece a, moving knife locating piece b, moving knife adjustment block; According to cutting sample needs many group cutting blades, moving knife locating piece a, moving knife locating piece b and moving knife adjustment blocks are set, every group of moving knife locating piece a, moving knife locating piece b are all identical with its corresponding cutting blade thickness with moving knife adjustment block; Described cutting blade is a rectangle, and an end is provided with circular hole, so that connect with the moving knife fixed block; Described moving knife locating piece a, moving knife locating piece b are shaped as right angled triangle; Described moving knife adjustment block is a rectangular block, has oval slotted hole on it, its position-adjustable; Described moving knife fixed block and alignment pin be linked together; Before the described moving knife guiding mechanism assembling; At first according to the selected cutting blade of the requirement of cutting sample; And the size of definite cutting blade slip cutting angle α; Selected simultaneously have 1 moving knife locating piece a of same thickness, 1 moving knife locating piece b and 2 moving knife adjustment blocks with cutting blade, and the equal and opposite in direction of the slip cutting angle α of the hypotenuse inclination angle of moving knife locating piece a and moving knife locating piece b and selected cutting blade; When described moving knife guiding mechanism assembles; Cutting blade is placed on the moving knife fixed block; And the hypotenuse of moving knife locating piece a at moving knife locating piece a and cutting blade faying face place near cutting blade; The right-angle side of moving knife locating piece a is near the moving knife fixed block, and another right-angle side of moving knife locating piece a is near a moving knife adjustment block; Near cutting blade, the right-angle side of moving knife locating piece b is near the moving knife fixed block at moving knife locating piece b and cutting blade faying face place for the hypotenuse of moving knife locating piece b, and another right-angle side of moving knife locating piece b is near another piece moving knife adjustment block; Described moving knife briquetting presses cutting blade, moving knife locating piece a, moving knife locating piece b and moving knife adjustment block, and moving knife briquetting, cutting blade, moving knife locating piece and moving knife adjustment block are fixed on the moving knife fixed block; The alignment pin on the said moving knife guiding mechanism and the connecting axle of universal testing machine are connected to a fixed;
Described stationary knife guiding mechanism is made up of ledger-plate, stationary knife briquetting, stationary knife fixed block, stationary knife locating piece a, stationary knife locating piece b, stationary knife adjustment block; According to cutting sample needs many group ledger-plates, stationary knife locating piece a, stationary knife locating piece b and stationary knife adjustment block are set, all the thickness with its corresponding ledger-plate is identical for every group of stationary knife locating piece a, stationary knife locating piece b and stationary knife adjustment block; Described ledger-plate is a rectangle, and an end is provided with circular hole; Ledger-plate connects with the stationary knife fixed block; Described stationary knife locating piece a, stationary knife locating piece b are shaped as right angled triangle; Described stationary knife adjustment block is a rectangular block, has oval slotted hole on it, stationary knife adjustment stop location scalable; Before the described stationary knife guiding mechanism assembling; At first according to the selected ledger-plate of the requirement of cutting sample; And the size of definite ledger-plate slip cutting angle β; Selected simultaneously have 1 stationary knife locating piece of same thickness, 1 stationary knife locating piece b and 2 stationary knife adjustment blocks with ledger-plate, and the equal and opposite in direction of the slip cutting angle β of the hypotenuse inclination angle of stationary knife locating piece a and stationary knife locating piece b and selected cutting blade; When described stationary knife guiding mechanism assembles; At first ledger-plate is placed on the stationary knife fixed block; And with the hypotenuse of stationary knife locating piece a at stationary knife locating piece a and ledger-plate faying face place near ledger-plate; The right-angle side of stationary knife locating piece a is near the stationary knife fixed block, and another right-angle side of stationary knife locating piece a is near a stationary knife adjustment block; Near ledger-plate, the right-angle side of stationary knife locating piece b is near the stationary knife fixed block at stationary knife locating piece b and ledger-plate faying face place for the hypotenuse of stationary knife locating piece b, and another right-angle side of stationary knife locating piece b is near another piece stationary knife adjustment block; The stationary knife briquetting is pressed ledger-plate, stationary knife locating piece and stationary knife adjustment block, stationary knife briquetting, ledger-plate, stationary knife locating piece and stationary knife adjustment block are fixed on the stationary knife fixed block; Described stationary knife fixed block is fastened on the T-slot of universal testing machine workbench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204564236U CN202318435U (en) | 2011-11-17 | 2011-11-17 | Clamping device for rapidly replacing cutting blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204564236U CN202318435U (en) | 2011-11-17 | 2011-11-17 | Clamping device for rapidly replacing cutting blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202318435U true CN202318435U (en) | 2012-07-11 |
Family
ID=46430432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204564236U Withdrawn - After Issue CN202318435U (en) | 2011-11-17 | 2011-11-17 | Clamping device for rapidly replacing cutting blade |
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| Country | Link |
|---|---|
| CN (1) | CN202318435U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501265A (en) * | 2011-11-17 | 2012-06-20 | 山东农业大学 | Clamping device for rapidly replacing cutting blades |
| CN106625046A (en) * | 2016-12-04 | 2017-05-10 | 重庆市环岛机械制造有限公司 | Cutter rapid replacement machine tool |
| CN110027045A (en) * | 2019-05-10 | 2019-07-19 | 环创(厦门）科技股份有限公司 | Mattress device for disassembling seeks side cutting structure |
-
2011
- 2011-11-17 CN CN2011204564236U patent/CN202318435U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501265A (en) * | 2011-11-17 | 2012-06-20 | 山东农业大学 | Clamping device for rapidly replacing cutting blades |
| CN106625046A (en) * | 2016-12-04 | 2017-05-10 | 重庆市环岛机械制造有限公司 | Cutter rapid replacement machine tool |
| CN106625046B (en) * | 2016-12-04 | 2019-03-19 | 重庆市环岛机械制造有限公司 | The lathe of quick-replaceable cutter |
| CN110027045A (en) * | 2019-05-10 | 2019-07-19 | 环创(厦门）科技股份有限公司 | Mattress device for disassembling seeks side cutting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120711 Effective date of abandoning: 20130710 |
|
| RGAV | Abandon patent right to avoid regrant |