CN202747771U - High-temperature sintering furnace - Google Patents
High-temperature sintering furnace Download PDFInfo
- Publication number
- CN202747771U CN202747771U CN 201220429001 CN201220429001U CN202747771U CN 202747771 U CN202747771 U CN 202747771U CN 201220429001 CN201220429001 CN 201220429001 CN 201220429001 U CN201220429001 U CN 201220429001U CN 202747771 U CN202747771 U CN 202747771U
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- China
- Prior art keywords
- temperature sintering
- high temperature
- refractory brick
- sintering furnace
- workpiece
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Abstract
The utility model relates to the technical field of sintering furnaces, in particular to a high-temperature sintering furnace which comprises a furnace body with heating rods, a workpiece trolley arranged at the bottom of the furnace body, a driving mechanism for driving the workpiece trolley to move, and an elevating mechanism for elevating the workpiece trolley. The furnace is characterized in that firebricks are laid at the upper part of the workpiece trolley in the length direction of the workpiece trolley; hollow firebricks are arranged at the upper parts of the firebricks; and the hollow firebricks are provided with through holes in the axial direction and the radial direction. As the firebricks and the hollow firebricks are arranged on the workpiece trolley, and through holes are formed on the hollow firebricks, every part of TC (tungsten carbide) bearings can obtain uniform heat in the heating process; in addition, the bottoms of the TC bearings can be cooled uniformly in the cooling process; the quality of products can be improved by above 50%; the quantity of the products are increased by more than 50%; the hardness of the products is 260-280 degrees; and the ovality of the products is decreased by more than 40%.
Description
Technical field
The utility model relates to the sintering furnace technical field, relates in particular to a kind of high temperature sintering furnace.
Background technology
The TC bearing is the core component of helicoid hydraulic motor, need to have higher wearability, and therefore the requirement to its hardness is also more strict in manufacture process.Making at present the TC bearing mainly fires in sintering furnace, high temperature sintering furnace of the prior art, comprise body of heater, form a furnace chamber that connects in the middle of in the body of heater, the furnace chamber two ends are respectively equipped with fire door, and two sidewalls of furnace chamber are provided with for the heater to the furnace chamber heating, and the workpiece car that is used for carrying processing TC bearing, the workpiece car is arranged in the furnace chamber slidably, and the both sides in the furnace chamber are provided with the elevating mechanism for the lifting work-piece car.During use, enter in the furnace chamber by manual or Mechanical Driven workpiece car, close two fire doors, start heater, can finish the work of firing to the TC bearing.This kind sintering furnace has following shortcoming: 1, because the TC bearing is directly to be placed on the workpiece car, so that the bottom of TC bearing heat in sintering process is uneven, the bottom of TC bearing is again less than rapidly cooling when cooling, thereby cause the hardness of TC bearing inhomogeneous, reduced the service life of TC bearing; 2, since in the existing design heater only be arranged on two sidewalls of furnace chamber the TC bearing heated so that the TC bearing around the inequality of being heated, affect the sintering quality of TC bearing; 3, since the workpiece car be promoted under the driving of elevating mechanism furnace wall below, this moment, workpiece car and furnace wall also had certain distance, cause the sealing of furnace chamber relatively poor, the heat in the furnace chamber can reserve between both slits, causes sintering furnace to have higher energy consumption; 4, the main motor-driven workpiece car that adopts travels at present, motor of the prior art directly and reductor be installed in the bottom of workpiece car, driving four wheels by gear drive travels, the power line of motor can move along with travelling of workpiece, the wheel of workpiece car is the crushing power line very easily, because voltage is higher in the power line, and potential threat is made in workman's personal safety.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and a kind of high temperature sintering furnace is provided, and guarantees that the TC bearing is heated evenly in heating process, and the TC bearing can be cooled off rapidly, improves the service life of TC bearing.
The utility model for achieving the above object, by the following technical solutions: a kind of high temperature sintering furnace, comprise body of heater with heating rod, be arranged at bottom of furnace body the workpiece car, be used for driving the driving mechanism that workpiece garage walks, the elevating mechanism that is used for promoting described workpiece car, it is characterized in that: there is refractory brick on described workpiece car top along the length direction tiling of workpiece car, the top of described refractory brick is provided with hollow refractory brick, described hollow refractory brick axially and radially be respectively equipped with through hole.
The dovetail that is respectively equipped with dovetail groove and cooperates with dovetail groove along its length direction on ring face Thursday of described hollow refractory brick.
Described dovetail groove and dovetail are respectively two groups, on mutual corresponding four faces that are arranged on hollow refractory brick of dovetail groove and dovetail.
Described body of heater is provided with fire door, and described fire door is provided with heating rod.
Be fixed with hinge on the described fire door, the top of described hinge is linked with sprocket wheel, and described sprocket wheel is connected with motor on being fixed on body of heater by chain.
The both sides of described workpiece car are provided with seal groove, and described seal groove is corresponding with two furnace wall bottoms of furnace chamber, is provided with sealing gasket in the described seal groove.
Described driving mechanism comprises reductor, chain formation and is bearing in ground sprocket wheel, one end of described chain is fixed on fixed block one side of workpiece car bottom, the other end successively the sprocket wheel on solderless wrapped connection sprocket wheel, the reductor, finally be fixed on the opposite side of fixed block.
Described elevating mechanism is hydraulic jack.
Described hollow refractory brick is provided with the guardrail for spacing TC bearing.
Be provided with the position-sensing switch for the positioning workpieces car in the described furnace chamber.
The beneficial effects of the utility model are: will refractory brick and hollow refractory brick be set on the workpiece car, owing to having through hole on the hollow refractory brick, guaranteed that each position of TC bearing can both obtain uniform heat in heating process, simultaneously, the bottom of TC bearing can access uniform cooling again when cooling, product quality, quantity improve more than 50%, and product hardness is at the 260-280 degree, and ovality reduces more than 40%; Owing on the fire door heating rod being installed, so that can the four sides in the furnace chamber around to the TC bearing heating, simultaneously because the acting in conjunction of seal groove and sealing gasket is so that workpiece car and furnace chamber form enclosed space, shorten sintering time, improved interiors of products material dissolves quality.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the structural representation of the utility model hollow core refractory brick;
Among the figure: 1, body of heater; 2, hollow refractory brick; 3, refractory brick; 4, workpiece car; 5, heating rod; 6, thermocouple; 7, TC bearing; 8, heating rod; 9, guardrail; 10, fire door; 11, reductor; 12, hydraulic jack; 13, chain; 14, sprocket wheel; 15, square tube; 16, chain; 17, resistance wire; 18, resistance wire guardrail; 19, wheel; 20, channel-section steel; 21, rail; 22, position-sensing switch; 23, protection network; 24, sprocket wheel; 25, sprocket wheel combination; 26, reducer pedestal; 27, through hole; 28, dovetail groove; 29, dovetail; 30, hinge; 31, sprocket wheel; 32, chain; 33, motor; 34, seal groove; 35, sealing gasket; 36, fixed block.
The specific embodiment
Describe the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.As shown in Figure 1 to Figure 3: a kind of high temperature sintering furnace, comprise body of heater 1 with heating rod 8, be arranged at bottom of furnace body workpiece car 4, be used for driving the driving mechanism that workpiece garage walks, the elevating mechanism that is used for promoting described workpiece car, elevating mechanism is preferably hydraulic jack 12 in the utility model.Workpiece car bottom is provided with four wheels 19, and wheel travels at the rail 21 that fixes on the ground.In order to make TC bearing heating and cooling evenly, there is refractory brick 3 on described workpiece car top along the length direction tiling of workpiece car, and the top of described refractory brick is provided with hollow refractory brick 2, described hollow refractory brick axially and radially be respectively equipped with through hole 27.In order hollow refractory brick to be assembled into a large integral body, the dovetail 29 that is respectively equipped with dovetail groove 28 and cooperates with dovetail groove along its length direction on ring face Thursday of described hollow refractory brick.Described dovetail groove and dovetail are respectively two groups, on mutual corresponding four faces that are arranged on hollow refractory brick of dovetail groove and dovetail.Can install in aggregates by dovetail groove and dovetail each hollow refractory brick like this.In order to monitor the temperature in the stove, also be provided with thermocouple 6 in the described body of heater.For the workpiece car is supported, described workpiece car bottom is equipped with square tube 15.
As further improvement of the utility model, described body of heater is provided with fire door 10, and described fire door is provided with heating rod 5.Be fixed with hinge 30 on the described fire door, the top of described hinge is linked with sprocket wheel 31, and described sprocket wheel is connected with motor 33 on being fixed on body of heater by chain 32.The both sides of described workpiece car are provided with seal groove 34, and described seal groove is corresponding with two furnace wall bottoms of furnace chamber, is provided with sealing gasket 35 in the described seal groove.When hydraulic jack promoted the rising of workpiece car, furnace wall bottom and workpiece car tight seal so that form the space of a sealing in the furnace chamber, had effectively prevented scattering and disappearing of heat.For the heat in the fast lifting body of heater, be provided with resistance wire 17 in the described body of heater, resistance wire is provided with the resistance wire guardrail outward.
As another kind of improvement the of the present utility model, described driving mechanism comprises reductor 11, chain 13 and is bearing in ground sprocket wheel 14, and a side corresponding with sprocket wheel 14 also is provided with a sprocket wheel 16.Reductor is installed on the reducer pedestal 26 and by channel-section steel 20 and fixes, and realizes the deceleration of motors by sprocket wheel combination 25.One end of described chain is fixed on fixed block 36 1 sides of workpiece car bottom, the other end successively the sprocket wheel 24 on solderless wrapped connection sprocket wheel 14, the reductor, finally be fixed on the opposite side of fixed block.For fixing TC bearing 7, to place it and in movement, drop, described hollow refractory brick is provided with the guardrail 9 for spacing TC bearing.When the workpiece car enters the assigned address of furnace chamber, mobile for the workpiece car is stopped, being provided with the position-sensing switch 22 for the positioning workpieces car in the described furnace chamber.In order also to be provided with protection network 23 on the described body of heater of parts of placing protection body of heater inside.
The course of work: during use, TC bearing 7 is placed on the hollow refractory brick 2, and have guardrail 9 fixing, and starting driving mechanism, workpiece car 4 travels under the driving of reductor 11 to the bottom of furnace chamber, start limit switch 22, so that workpiece car 4 stops horizontal movement, restart hydraulic jack 12, the piston rod of hydraulic jack promotes to rise on the workpiece, behind furnace wall bottom and seal groove close contact, stop to move, two fire door closures start heater, can the TC bearing in the furnace chamber be heated, after heating is finished, open fire door, close hydraulic jack, the workpiece car falls after rise, and the workpiece car is regained in the reductor counter-rotating.
To refractory brick and hollow refractory brick be set on the workpiece car, owing to having through hole on the hollow refractory brick, guaranteed that each position of TC bearing can both obtain uniform heat in heating process, simultaneously, the bottom of TC bearing can access uniform cooling again when cooling, product quality, quantity improve more than 50%, and product hardness is at the 260-280 degree, and ovality reduces more than 40%; Owing on the fire door heating rod being installed, so that can the four sides in the furnace chamber around to the TC bearing heating, simultaneously because the acting in conjunction of seal groove and sealing gasket is so that workpiece car and furnace chamber form enclosed space, shorten sintering time, improved interiors of products material dissolves quality.
The above only is preferred embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. high temperature sintering furnace, comprise body of heater with heating rod, be arranged at bottom of furnace body the workpiece car, be used for driving the driving mechanism that workpiece garage walks, the elevating mechanism that is used for promoting described workpiece car, it is characterized in that: there is refractory brick on described workpiece car top along the length direction tiling of workpiece car, the top of described refractory brick is provided with hollow refractory brick, described hollow refractory brick axially and radially be respectively equipped with through hole.
2. high temperature sintering furnace according to claim 1 is characterized in that: the dovetail that is respectively equipped with dovetail groove and cooperates with dovetail groove along its length direction on ring face Thursday of described hollow refractory brick.
3. high temperature sintering furnace according to claim 2, it is characterized in that: described dovetail groove and dovetail are respectively two groups, and dovetail groove and dovetail are mutually on corresponding four faces that are arranged on hollow refractory brick.
4. according to claim 1 or 3 described high temperature sintering furnaces, it is characterized in that: described body of heater is provided with fire door, and described fire door is provided with heating rod.
5. high temperature sintering furnace according to claim 4, it is characterized in that: be fixed with hinge on the described fire door, the top of described hinge is linked with sprocket wheel, and described sprocket wheel is connected with motor on being fixed on body of heater by chain.
6. high temperature sintering furnace according to claim 5, it is characterized in that: the both sides of described workpiece car are provided with seal groove, and described seal groove is corresponding with two furnace wall bottoms of furnace chamber, is provided with sealing gasket in the described seal groove.
7. high temperature sintering furnace according to claim 6, it is characterized in that: described driving mechanism comprises reductor, chain and is bearing in ground sprocket wheel, one end of described chain is fixed on fixed block one side of workpiece car bottom, the other end successively the sprocket wheel on solderless wrapped connection sprocket wheel, the reductor, finally be fixed on the opposite side of fixed block.
8. high temperature sintering furnace according to claim 7, it is characterized in that: described elevating mechanism is hydraulic jack.
9. high temperature sintering furnace according to claim 8, it is characterized in that: described hollow refractory brick is provided with the guardrail for spacing TC bearing.
10. high temperature sintering furnace according to claim 9 is characterized in that: be provided with the position-sensing switch for the positioning workpieces car in the described furnace chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220429001 CN202747771U (en) | 2012-08-27 | 2012-08-27 | High-temperature sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220429001 CN202747771U (en) | 2012-08-27 | 2012-08-27 | High-temperature sintering furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202747771U true CN202747771U (en) | 2013-02-20 |
Family
ID=47707151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220429001 Withdrawn - After Issue CN202747771U (en) | 2012-08-27 | 2012-08-27 | High-temperature sintering furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202747771U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778122A (en) * | 2012-08-27 | 2012-11-14 | 天津立林石油机械有限公司 | High-temperature sintering furnace |
| CN104792151B (en) * | 2015-04-29 | 2016-08-24 | 宁夏昇力恒真空设备有限公司 | Use the high-temperature vacuum sintering furnace of hydraulic cylinder lowering or hoisting gear |
-
2012
- 2012-08-27 CN CN 201220429001 patent/CN202747771U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778122A (en) * | 2012-08-27 | 2012-11-14 | 天津立林石油机械有限公司 | High-temperature sintering furnace |
| CN102778122B (en) * | 2012-08-27 | 2016-08-24 | 天津立林石油机械有限公司 | High temperature sintering furnace |
| CN104792151B (en) * | 2015-04-29 | 2016-08-24 | 宁夏昇力恒真空设备有限公司 | Use the high-temperature vacuum sintering furnace of hydraulic cylinder lowering or hoisting gear |
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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: 20130220 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |