CN218298100U

CN218298100U - Adjustable clamping device for measuring heat conductivity coefficient of wood

Info

Publication number: CN218298100U
Application number: CN202222350573.XU
Authority: CN
Inventors: 赵景尧; 谭娇; 李路瑶; 龙忠义
Original assignee: Northeast Forestry University
Current assignee: Northeast Forestry University
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2023-01-13
Anticipated expiration: 2032-09-05

Abstract

The utility model discloses an adjustable clamping device for measuring timber coefficient of heat conductivity, which comprises a supporting pedestal and is characterized by further comprising, fixed mounting has the mounting panel on the support base, both sides position symmetry installs two sets ofly and is used for pulling the ligneous drive mechanism of fixed on the mounting panel, on two sets of drive mechanism respectively fixed mounting have be used for the ligneous first jack catch of centre gripping and second jack catch, can make first jack catch and second jack catch inwards closed in order to carry out the fixed centre gripping to the timber of equidimension not through drive mechanism, first jack catch and second jack catch are when carrying out the centre gripping to the timber of equidimension not, the flexibility of usable first spring self compensaties the distance between first jack catch and the second jack catch, when the stopper gets into the spacing groove, the steel ball is extruded and is got into in the draw-in groove, start first cylinder and drive the magnetic path and outwards extend and adsorb the steel ball, the buckle that utilizes the magnetic path to strengthen first jack catch and second jack catch between to the superstrong suction of steel ball is connected, help improving device's stability.

Description

Adjustable clamping device for measuring heat conductivity coefficient of wood

Technical Field

The utility model relates to a measure timber coefficient of heat technical field, especially relate to an adjustable clamping device for measuring timber coefficient of heat conductivity.

Background

The wood processing processes such as wood drying, artificial board hot pressing, wood pyrolysis and the like all involve the change of wood temperature, and in order to realize the effective control of the process processes, the heat transfer characteristics of the material, such as specific heat, heat conductivity coefficient and the like, need to be measured firstly.

All adopt single fixture to lead to a device to carry out the centre gripping to the timber of a size at present most clamping device, want to carry out the centre gripping to the timber of equidimension and can only change different clamping device and make the operating personnel need spend the plenty of time on the centre gripping when measuring, and because fixture is single compress tightly fixed ligneous stability when making the measurement can not guarantee.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the poor stability of centre gripping and centre gripping can't be carried out to the timber of equidimension not among the prior art, and the adjustable clamping device who is used for measuring timber coefficient of heat conductivity who proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an adjustable clamping device for measuring the heat conductivity coefficient of wood comprises a supporting base, wherein a mounting plate is fixedly mounted on the supporting base, two groups of transmission mechanisms for pulling and fixing the wood are symmetrically mounted at two side positions on the mounting plate, a first clamping claw and a second clamping claw for clamping the wood are respectively fixedly mounted on the two groups of transmission mechanisms, a containing groove is formed in the free end of the first clamping claw, a first spring is welded at the inner end of the containing groove, a limiting block is welded at the free end of the first spring, a placing groove is formed in the limiting block, a fixing plate is integrally connected at the middle end of the placing groove, two second springs are welded at the upper end and the lower end of the fixing plate, and steel balls are welded at the free ends of the second springs;

the free end of the second clamping jaw is respectively provided with a limiting groove matched with the limiting block and a clamping groove matched with the steel ball, the inner end of the clamping groove is fixedly provided with a first air cylinder, and the output end of the first air cylinder is fixedly provided with a magnetic block matched with the steel ball.

Preferably, the supporting base is horizontally arranged, and the mounting plate is longitudinally arranged on the upper surface of the supporting base.

Preferably, the limiting blocks are of hemispherical structures, and the magnetic blocks are in adsorption contact with the steel balls entering the clamping grooves through magnetic force.

Preferably, the transmission mechanism comprises a first fixing block, a second fixing block and a third fixing block which are fixedly installed on the installation plate respectively, a second air cylinder is installed on the first fixing block in a rotating mode, a first traction rod and a second traction rod are connected to the second fixing block and the third fixing block respectively, the output end of the second air cylinder is connected with the middle end of the first traction rod in a rotating mode, the free end of the first traction rod is connected with a third traction rod connected with the free end of the second traction rod, a guide block of a hollow structure is fixedly installed on the installation plate, and the third traction rod is connected with a fixing rod which transversely slides to penetrate through the guide block and is used for fixedly connecting the first clamping jaw or the second clamping jaw.

Preferably, two ends of the first traction rod are respectively and rotatably connected to the second fixing block and the third traction rod, and two ends of the second traction rod are respectively and rotatably connected to middle positions of the third fixing block and the third traction rod.

Preferably, two ends of the third traction rod are respectively and rotatably connected to the free end of the first traction rod and the fixed rod, and the guide block is provided with a guide through hole for slidably sleeving the fixed rod.

Compared with the prior art, the utility model discloses possess following advantage:

1. the utility model discloses a second cylinder promotes first traction lever, and first traction lever pulls the third traction lever and inwards deflects, and the third traction lever pulls and drives the second traction lever and inwards deflects, and the second traction lever carries out the auxiliary stay to the third traction lever, and the third traction lever promotes the dead lever and carries out horizontal migration for the centre gripping is fixed to the timber of equidimension not to first jack catch and second jack catch, helps improving the flexibility of device.

2. The utility model discloses a first jack catch and second jack catch are closed when carrying out the centre gripping to the timber of the size of difference, the flexibility of usable first spring self, compensate distance between first jack catch and the second jack catch, when the stopper gets into the spacing groove, the steel ball is pushed in getting into the draw-in groove, start first cylinder and drive the outside extension of magnetic path and adsorb the steel ball, it can strengthen the buckle between first jack catch and the second jack catch and be connected to utilize the superstrong suction of magnetic path to the steel ball, avoid leading to ligneous fixed centre gripping to take place to become flexible because external factors, help improving the stability of device.

Drawings

Fig. 1 is a schematic structural view of an adjustable clamping device for measuring the heat conductivity of wood according to the present invention;

fig. 2 is a schematic diagram of a partial enlarged structure a of an adjustable clamping device for measuring a heat conductivity of wood according to the present invention;

fig. 3 is a schematic view of the support base and the mounting plate connection of the adjustable clamping device for measuring the heat conductivity of wood according to the present invention.

In the figure: 1. a support base; 2. mounting a plate; 3. a first jaw; 4. a second jaw; 5. a storage groove; 6. a first spring; 7. a limiting block; 8. a placement groove; 9. a fixing plate; 10. a second spring; 11. steel balls; 12. a limiting groove; 13. a card slot; 14. a first cylinder; 15. a magnetic block; 16. a first fixed block; 17. a second fixed block; 18. a third fixed block; 19. a second cylinder; 20. a first traction rod; 21. a second traction rod; 22. a third draw bar; 23. a guide block; 24. and (6) fixing the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, an adjustable clamping device for measuring the heat conductivity of wood comprises a supporting base 1, wherein the supporting base 1 is horizontally arranged, a mounting plate 2 is longitudinally arranged on the upper surface of the supporting base 1, and two groups of transmission mechanisms for pulling and fixing wood are symmetrically arranged on two sides of the mounting plate 2;

the transmission mechanism comprises a first fixed block 16, a second fixed block 17 and a third fixed block 18 which are fixedly arranged on the mounting plate 2 respectively, a second air cylinder 19 is rotatably arranged on the first fixed block 16, the model of the second air cylinder 19 is SCD50x100-100-LB, a first traction rod 20 and a second traction rod 21 are rotatably connected on the second fixed block 17 and the third fixed block 18 respectively, the third traction rod 22 can be supported in an auxiliary mode through the second traction rod 21, the stability of the device is improved, the output end of the second air cylinder 19 is rotatably connected with the middle end of the first traction rod 20, the free end of the first traction rod 20 is rotatably connected with the third traction rod 22 which is rotatably connected with the free end of the second traction rod 21, a guide block 23 with a hollow structure is fixedly arranged on the mounting plate 2, a guide through hole for slidably sleeving the fixed rod 24 is formed in the guide block 23, the fixed rod 24 can only horizontally move through the guide through hole, the third traction rod 22 is connected with the guide block 23 in a transverse sliding mode and is used for fixedly connecting the first clamping jaw 3 or the second clamping jaw 4, the transmission mechanism is used for driving the first clamping jaw 3 and the second jaw 4 to be matched with the wood;

a first claw 3 and a second claw 4 for clamping wood are fixedly installed on the two groups of transmission mechanisms respectively, a containing groove 5 is formed in the free end of the first claw 3, a first spring 6 is welded at the inner end of the containing groove 5, the distance between the first claw 3 and the second claw 4 is supplemented by the telescopic length of the first spring 6, so that a limiting block 7 can enter a limiting groove 12 when the first claw 3 and the second claw 4 fixedly clamp different sizes of wood, a limiting block 7 is welded on the free end of the first spring 6, the limiting block 7 is of a hemispherical structure, a placing groove 8 is formed in the limiting block 7, a fixing plate 9 is integrally connected to the middle end of the placing groove 8, two second springs 10 are welded at the upper end and the lower end of the fixing plate 9, and steel balls 11 are welded at the free ends of the second springs 10;

a limiting groove 12 matched with the limiting block 7 and a clamping groove 13 matched with the steel balls 11 are formed in the free end of the second clamping jaw 4 respectively, a first air cylinder 14 is fixedly mounted at the inner end of the clamping groove 13, the type of the first air cylinder 14 is SCD50x100-100-LB, a magnetic block 15 matched with the steel balls 11 is fixedly mounted at the output end of the first air cylinder 14, a rubidium magnet can be selected as the magnetic block 15, the high-strength magnetism of the magnetic block is used for adsorbing the steel balls 11, the magnetic block 15 is in magnetic adsorption contact with the steel balls 11 entering the clamping groove 13, the magnetic block 15 is used for adsorbing the steel balls 11, the buckling connection between the first clamping jaw 3 and the second clamping jaw 4 can be enhanced, the phenomenon that wood is fixed and clamped due to external factors is loosened is avoided, and the stability of the device is improved.

The utility model discloses its functional principle is explained to the following mode of operation of accessible:

the first traction rod 20 is pushed to deflect inwards through the second cylinder 19, the first traction rod 20 drives the third traction rod 22 to deflect inwards, the third traction rod 22 drives the second traction rod 21 to deflect inwards, and the third traction rod 22 pushes the fixing rod 24 to move horizontally, so that the first jaw 3 and the second jaw 4 are closed inwards to fixedly clamp woods with different sizes;

stopper 7 gets into spacing groove 12, extrudes first spring 6, and draw-in groove 13 inner wall extrudees steel ball 11 and makes its shrink inwards, and steel ball 11 extrudees second spring 10 and makes its shrink, and steel ball 11 gets into draw-in groove 13, starts first cylinder 14 and orders about magnetic path 15 and outwards extends, and the magnetic force that utilizes magnetic path 15 adsorbs fixedly to steel ball 11 to it is fixed to strengthen the buckle to first jack catch 3 and second jack catch 4.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The adjustable clamping device for measuring the heat conductivity coefficient of the wood comprises a supporting base (1) and is characterized in that a mounting plate (2) is fixedly mounted on the supporting base (1), two groups of transmission mechanisms for pulling and fixing the wood are symmetrically mounted on two sides of the mounting plate (2), a first clamping jaw (3) and a second clamping jaw (4) for clamping the wood are respectively and fixedly mounted on the two groups of transmission mechanisms, an accommodating groove (5) is formed in the free end of the first clamping jaw (3), a first spring (6) is welded at the inner end of the accommodating groove (5), a limiting block (7) is welded at the free end of the first spring (6), a placing groove (8) is formed in the limiting block (7), a fixing plate (9) is integrally connected to the middle end of the placing groove (8), two second springs (10) are welded at the upper end and the lower end of the fixing plate (9), and a steel ball (11) is welded at the free end of the second spring (10);

limiting grooves (12) matched with the limiting blocks (7) and clamping grooves (13) matched with the steel balls (11) are formed in the free ends of the second clamping jaws (4) respectively, a first air cylinder (14) is fixedly mounted at the inner ends of the clamping grooves (13), and a magnetic block (15) matched with the steel balls (11) is fixedly mounted at the output end of the first air cylinder (14).

2. An adjustable holding device for measuring the thermal conductivity of wood according to claim 1, characterized in that the supporting base (1) is horizontally arranged and the mounting plate (2) is longitudinally arranged at the position of the upper surface of the supporting base (1).

3. The adjustable clamping device for measuring the heat conductivity of the wood as claimed in claim 1, wherein the limiting blocks (7) are all of hemispherical structures, and the magnetic blocks (15) are in contact with the steel balls (11) entering the clamping grooves (13) through magnetic adsorption.

4. The adjustable clamping device for measuring the heat conductivity of the wood as claimed in claim 1, wherein the transmission mechanism comprises a first fixing block (16), a second fixing block (17) and a third fixing block (18) which are fixedly mounted on the mounting plate (2) respectively, the first fixing block (16) is rotatably mounted with a second cylinder (19), the second fixing block (17) and the third fixing block (18) are connected with a first traction rod (20) and a second traction rod (21) respectively, the output end of the second cylinder (19) is rotatably connected with the middle end of the first traction rod (20), the free end of the first traction rod (20) is connected with a third traction rod (22) connected with the free end of the second traction rod (21), the mounting plate (2) is fixedly mounted with a guide block (23) of a hollow structure, and the third traction rod (22) is connected with a fixing rod (24) which transversely slides through the guide block (23) and is used for fixedly connecting the first jaw (3) or the second jaw (4).

5. An adjustable clamping device for measuring the heat conductivity of wood according to claim 4, characterized in that the two ends of the first draw bar (20) are respectively and rotatably connected to the second fixing block (17) and the third draw bar (22), and the two ends of the second draw bar (21) are respectively and rotatably connected to the middle positions of the third fixing block (18) and the third draw bar (22).

6. The adjustable clamping device for measuring the heat conductivity of wood as claimed in claim 4, wherein two ends of the third drawbar (22) are respectively connected to the free end of the first drawbar (20) and the fixing rod (24) in a rotatable manner, and the guide block (23) is provided with a guide through hole for slidably sleeving the fixing rod (24).