Hydraulic tensioning system of tunnel furnace
A technology of tensioning system and tunnel furnace, applied in the field of tunnel furnace, can solve the problems of large structure of spring tensioning system and pneumatic tensioning system, inability to realize miniaturized design of tunnel furnace, large energy loss of pneumatic tensioning system, etc., and achieve Small size, light weight, low noise effect
Pending Publication Date: 2019-01-11
GUANGZHOU BAKE OVEN MACHINERY
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Problems solved by technology
[0005] 1. The temperature change will directly change the pressure of the spring tensioning system or the pneumatic tensioning system, which will lead to the instability of the tension state of the mesh belt;
[0006] 2. When the pressure of the pneumatic tensioning system changes, there will be high-frequency gas discharge sound, resulting in loud noise;
[0007] 3. The structure of the spring tensioning system and the pneumatic tensioning system is large, which makes it impossible to realize the miniaturization design of the tunnel furnace;
[0008] 4. The energy loss of the pneumatic tensioning system is large, and the bearing capacity is small
Method used
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[0028] Below, the present invention will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of not conflicting, the various embodiments described below or the technical features can be combined arbitrarily to form new embodiments. .
[0029] see figure 2 , shows a tunnel furnace hydraulic tensioning system according to an embodiment of the present invention, which includes a hydraulic pump 10, an overflow valve 20, a reversing valve 30, a hydraulic cylinder 50, a first relay 70 and a second relay 80, wherein, The hydraulic pump 10 has a connected first inlet 11 and a first outlet 12, and the first inlet 11 communicates with a hydraulic source (the hydraulic source is hydraulic oil); the overflow valve 20 has a connected second inlet 21 and a second outlet 22 , the second outlet 22 communicates with the oil tank or oil tank 200 containing the overflow liquid, and the second inlet 2...
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The invention discloses a hydraulic tensioning system of a tunnel furnace. The hydraulic tensioning system comprises a hydraulic pump, an overflow valve, a reversing valve, a hydraulic cylinder, a first relay and a second relay, wherein the hydraulic pump is provided with a first inlet and a first outlet which communicate with each other, and the first inlet communicates with a hydraulic source; the overflow vale is provided with a second inlet which communicates with the first outlet; the reversing valve is provided with a third inlet, a third outlet and a fourth outlet, the third outlet andthe fourth outlet communicate with the third inlet correspondingly, and the third inlet communicates with the first outlet; a piston rod of the hydraulic cylinder is used for being connected with a tensioning roller, the hydraulic cylinder is provided with a rod cavity and a rodless cavity, the rodless cavity communicates with the third outlet, and the rod cavity communicates with the fourth outlet; the first relay is used for detecting pressure of the hydraulic cylinder and controlling the hydraulic pump to stop; and the second relay is used for detecting the pressure of the hydraulic cylinder and controlling the hydraulic pump to start. The hydraulic tensioning system of the tunnel furnace can achieve more stable tensioning adjustment, and thus tensioning of the tensioning roller is morestable.
Description
technical field [0001] The present invention relates to the field of tunnel furnace technology, in particular to a tunnel furnace hydraulic tensioning system. Background technique [0002] Tunnel oven (food processing category) is a tunnel-type mechanical equipment that completes food baking through heat conduction, convection, and radiation. In terms of transmission form, tunnel furnaces can be divided into conveyor chain tunnel furnaces and conveyor belt tunnel furnaces, see figure 1 , shows the tunnel furnace mesh belt transmission system taking the mesh belt as an example. The mesh belt belongs to the woven mesh conveyor belt, with exquisite form and various specifications. The tunnel furnace mesh belt transmission system includes a furnace body 1, and the furnace body has a furnace head 11 and furnace tail 12, furnace head 11 is provided with driven roller 2 and correction roller 3, while furnace tail 12 is provided with driving roller 5 and tension roller 6, mesh belt...
Claims
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IPC IPC(8): B65G23/44A21B1/00
CPCA21B1/00B65G23/44B65G2201/0202
Inventor 邵鸿飞
Owner GUANGZHOU BAKE OVEN MACHINERY