Double-roller sand washer

Abstract

The utility model discloses a double-roller sand washer which comprises a driving roller and a driven roller, and the driving roller drives the driven roller to rotate relatively when rotating. A shaft of the driving roller and a shaft of the driven roller are parallel to each other, and the two ends of the shafts are supported through bearing seats respectively. A bearing seat of the driving roller is fixed on the rack; the two bearing seats of the driven roller are respectively arranged on the two parallel slide rails and can move on the slide rails; the sliding rail is arranged in an inclined mode and fixed to the machine frame. The utility model has the advantages of simple structure and convenience in clearance adjustment, disassembly and replacement.

Description

Technical Field

[0001] The utility model relates to building material processing equipment, in particular to a double-roller sand washing machine. Background Art

[0002] The sand used in construction needs to be made according to the particle size of sand and gravel. At present, some people have used double-roller sand washing machines to make sand. The double-roller sand washing machine includes an active roller and a passive roller. When the active roller rotates, it drives the passive roller to rotate relatively. The weight of the roller is generally about 4 tons. The shafts of the active roller and the passive roller are parallel to each other, and the two ends of the shaft are supported by bearing seats respectively. The active roller is powered by a motor. When the sand making is working, the sand and gravel are input between the active roller and the passive roller and rolled to form the required particle size.

[0003] After the roller sand washing machine has been working for a period of time, due to wear, the gap between the two will increase and need to be adjusted continuously, usually by adjusting the bearing seat of the passive roller. When the wear reaches a certain degree, it needs to be replaced.

[0004] At present, there are two main ways to set the active roller and the passive roller: one is a horizontal setting, in which the active roller and the passive roller are at the same level; the other is a vertical setting, in which the passive roller is set above the active roller.

[0005] However, both of these two settings have certain defects: the horizontal setting is inconvenient to adjust the gap due to the large friction between the bearing seat of the passive roller and the frame; the vertical setting is inconvenient to disassemble and replace. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a double-roller sand washing machine which is convenient for gap adjustment and disassembly and replacement.

[0007] In order to solve the above technical problems, the utility model discloses a double-roll sand washing machine, comprising an active roller and a passive roller, wherein the active roller drives the passive roller to rotate relatively when the active roller rotates; the axis of the active roller and the axis of the passive roller are parallel to each other, and the two ends of the axis are supported by bearing seats respectively; the bearing seat of the active roller is fixed to the frame; the two bearing seats of the passive roller are respectively arranged on two parallel slide rails and can move on the slide rails; the slide rails are arranged at an angle and fixed to the frame.

[0008] The inclination of the slide rail is less than 60°.

[0009] The inclination of the slide rail is 5°.

[0010] The cross section of the slide rail is arc-shaped, and a slide groove with a corresponding cross section is provided at the bottom of the bearing seat of the passive roller.

[0011] The cross section of the slide rail is in an arc shape.

[0012] An adjusting device is provided between the side of the bearing seat of the passive roller away from the active roller and the frame to adjust the distance between the passive roller and the active roller.

[0013] The adjusting device is a hydraulic cylinder.

[0014] The adjusting device is a screw.

[0015] The adjusting device is connected to the frame via a spring.

[0016] A buffer spring is arranged between the bearing seat of the passive roller and the bearing seat of the active roller.

[0017] With the structure of the utility model, since the two bearing seats of the passive roller are respectively arranged on two parallel slide rails, and the slide rails are arranged at an angle, the friction between the bearing seat of the passive roller and the slide rails is small, and the gap adjustment is labor-saving and convenient, thereby overcoming the defects of the horizontal arrangement of the prior art; and it is also convenient to disassemble and replace, thereby overcoming the defects of the vertical arrangement of the prior art.

[0018] As a further improvement, the cross-section of the slide rail is arc-shaped, which further reduces friction and improves the stability of the sand making machine operation.

[0019] By providing the adjusting device, especially by connecting the adjusting device to the frame through a spring, not only the adjustment is made more convenient, but also the passive roller can be buffered and protected during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 . DETAILED DESCRIPTION

[0022] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments:

[0023] like Figure 1 , Figure 2 As shown, the roller sand washing machine of the utility model comprises an active roller 1 and a passive roller 2. When the active roller rotates, the passive roller is driven to rotate relatively. The axis of the active roller and the axis of the passive roller are parallel to each other, and the two ends of the axis are supported by bearing seats respectively.

[0024] The bearing seat 3 of the active roller is fixed to the frame. The two bearing seats 4 of the passive roller are respectively arranged on two parallel slide rails 5 and can move on the slide rails. The slide rails are arranged obliquely and fixed to the frame.

[0025] The inclination of the guide rail is preferably less than 60°.

[0026] The inclination of the slide rail is preferably 5°.

[0027] The cross section of the slide rail is preferably arc-shaped, and a slide groove with a corresponding cross section is provided at the bottom of the bearing seat of the passive roller.

[0028] The cross section of the slide rail is preferably in the shape of an arc. The bottom of the bearing seat of the passive roller is provided with a slide groove of a corresponding cross section.

[0029] An adjusting device 6 is provided between the side of the passive roller's bearing seat away from the active roller and the frame to adjust and fix the distance between the passive roller and the active roller.

[0030] The adjusting device is preferably a hydraulic cylinder. The adjusting device can also be a screw.

[0031] The adjusting device is connected to the frame through a spring 7. When encountering large pieces of sand and gravel during the sand making process, it can buffer and protect the passive roller.

[0032] A buffer spring is arranged between the bearing seat of the passive roller and the bearing seat of the active roller.

Claims

1. A roller sand washing machine, comprising an active roller (1) and a passive roller (2), wherein the active roller drives the passive roller to rotate relatively when the active roller rotates; the axis of the active roller and the axis of the passive roller are parallel to each other, and both ends of the axis are supported by bearing seats respectively; characterized in that: The bearing seat (3) of the active roller is fixed to the frame; the two bearing seats (4) of the passive roller are respectively arranged on two parallel slide rails (5) and can move on the slide rails; the slide rails are arranged at an angle and fixed to the frame.

2. The roller sand washing machine according to claim 1, characterized in that: The inclination of the slide rail is less than 60°.

3. The roller sand washing machine according to claim 1, characterized in that: The inclination of the slide rail is 5°.

4. The roller sand washing machine according to claim 1, characterized in that: The cross section of the slide rail is arc-shaped, and a slide groove with a corresponding cross section is provided at the bottom of the bearing seat of the passive roller.

5. The roller sand washing machine according to claim 4 is characterized in that: The cross section of the slide rail is in an arc shape.

6. The roller sand washing machine according to claim 1, characterized in that: An adjustment device (6) is provided between the side of the passive roller bearing seat away from the active roller and the frame to adjust the distance between the passive roller and the active roller.

7. The roller sand washing machine according to claim 6, characterized in that: The adjusting device is a hydraulic cylinder.

8. The roller sand washing machine according to claim 6, characterized in that: The adjusting device is a screw.

9. The roller sand washing machine according to claim 6, characterized in that: The adjusting device is connected to the frame via a spring (7).

10. The roller sand washing machine according to claim 1, characterized in that: A buffer spring is arranged between the bearing seat of the passive roller and the bearing seat of the active roller.

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