A Sandwich Specimen Forming Device That Can Precisely Control the Thickness of Asphalt Film
A technology for precise control of the thickness of asphalt film, which is applied in the preparation of test samples, etc., can solve the problems of crushed aggregate powder, aggregate surface texture is easy to be damaged, and the thickness of asphalt film is difficult to accurately control, so as to achieve accurate control of molding temperature Effect
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specific Embodiment approach 1
[0022] Specific implementation mode one: combine Figure 1 to Figure 9 Describe this embodiment, a sandwich test piece forming device that can precisely control the thickness of the asphalt film described in this embodiment includes a bracket 1, a temperature box 2, a central shaft 3, a coarse adjustment knob 4, a fine adjustment knob 5, and an upper test piece mounting sleeve 6 and the lower test piece mounting sleeve 7, the central axis 3 is set along the vertical direction, the coarse adjustment knob 4 and the fine adjustment knob 5 are screwed on the central axis 3 from top to bottom in turn, and the upper end of the coarse adjustment knob 4 is provided with a first limit Position ring 21, the lower end of the coarse adjustment knob 4 is provided with a second limit ring 22, the upper end of the fine adjustment knob 5 is provided with a third limit ring 23, and the lower end of the fine adjustment knob 5 is provided with a fourth limit ring 24 , the first limit ring 21, th...
specific Embodiment approach 2
[0023] Specific implementation mode two: combination Figure 1 to Figure 3 To illustrate this embodiment, the upper outer peripheral side wall of the central shaft 3 described in this embodiment is provided with a coarse thread 31, the inner peripheral side wall of the coarse adjustment knob 4 is screwed with the coarse thread 31, and the lower end outer peripheral side of the central shaft 3 The wall is provided with a fine thread 32, and the inner peripheral side wall of the fine-tuning knob 5 is screwed with the fine thread 32. Other compositions and connection methods are the same as those in Embodiment 1.
[0024] In this way, the coarse adjustment knob 4 can rotate around the central axis 3, and under the action of the coarse thread 31, the central axis 3 can move up and down relatively quickly; the fine adjustment knob 5 can rotate around the central axis 3, and under the action of the fine thread 32, the center Axis 3 achieves slower up and down movement.
specific Embodiment approach 3
[0025] Specific implementation mode three: combination Figure 1 to Figure 4 To illustrate this embodiment, two limiting blocks 231 are provided on the inner peripheral side wall of the third limiting ring 23 in this embodiment, and two limiting grooves 35 are provided on the outer peripheral side wall of the central shaft 3, Each limiting slot 35 is arranged along the height direction, and each limiting block 231 is correspondingly inserted into one limiting slot 35 . Other compositions and connection methods are the same as those in the second embodiment.
[0026] The limiting block 231 is designed in this way to be clamped in the limiting groove 35, so that the central shaft 3 can move up and down but cannot rotate.
[0027] In this embodiment, two limiting blocks 231 are arranged oppositely, and two limiting grooves 35 are arranged oppositely.
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