Fixing mechanism for fixing double rollers of double-roller crusher

Abstract

The utility model discloses a fixing mechanism for fixing double rollers of a double-roller crusher, which comprises a wedge-shaped fixing block, the fixing block is used for being embedded in a gap between the double rollers, and the length of the fixing block is not greater than that of the double rollers; the left face and the right face of the fixing block are concave arc-shaped faces, the arc-shaped faces are used for abutting against the roller faces of the double rollers, and rubber layers are further attached to the arc-shaped faces and used for increasing friction force. A holding handle is fixed to the center of the top of the fixing block, and the fixing block is mounted or dismounted through the holding handle. Threads are arranged at the lower end of the holding handle, a screw hole is formed in the center of the top of the fixing block, and the holding handle is fixedly connected with the fixing block through the threads. The double-roller fixing mechanism is easy to manufacture, easy and convenient to operate on site and high in reliability, the problem that the double rollers cannot be fixed when materials bonded to the double rollers are cleaned is solved, cleaning time is saved, the equipment utilization rate is increased, safety risks caused by the fact that the double rollers cannot be fixed during cleaning are reduced, and meanwhile labor is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of maintenance tools, and in particular relates to a fixing mechanism for fixing double rollers of a double roller crusher. Background Art

[0002] The 2PG-φ200x125mm double-roll crusher is used to prepare 60 mesh (particle size 0.3mm) alloy samples. Due to the crushing of the alloy, the double-roll surface will have pits on the roller surface in a short period of time, and some residual materials of the sample will adhere to the roller surface. In order to ensure that the next crushing sample is not contaminated, the crushing cover needs to be opened after each crushing to grind and clean the materials accumulated on the double rollers with a grinding wheel or tool to remove the bonding materials. However, because the original double-roll crusher design does not have a double-roll fixing mechanism, during the grinding process, the crushing roller will rotate after being stressed (the previous cleaning mode is two people working together, one person holding a single roller with both hands, and the other person grinding the single roller with a tool), and the maximum distance between the double rollers is 10mm. When two people work together, it is difficult for one person to fix the double roller or single roller by hand, so it is difficult to clean the bonding materials. Each cleaning time is about 15 minutes. At the same time, there is a risk of mechanical injury caused by pinching the fingers of the person holding the roller. Utility Model Content

[0003] The utility model provides a fixing mechanism for fixing double rollers of a double roller crusher, aiming at designing an original double roller crusher without a double roller fixing mechanism. In the process of grinding the roller surface, the crushing roller rotates under force and there is a risk of pinching fingers.

[0004] To this end, the utility model adopts the following technical solutions:

[0005] A fixing mechanism for fixing double rollers of a double roller crusher comprises a wedge-shaped fixing block, the fixing block is used to be embedded in the gap between the double rollers, and the length of the fixing block is not greater than the length of the double rollers; the left and right surfaces of the fixing block are concave arc surfaces, the arc surfaces are used to abut against the roller surfaces of the double rollers, and a rubber layer is also attached to the arc surface, and the rubber layer is used to increase friction.

[0006] Furthermore, a handle is fixed at the center of the top of the fixing block, and the fixing block is installed or removed through the handle.

[0007] Furthermore, a thread is provided at the lower end of the gripping handle, a screw hole is provided at the center of the top of the fixing block, and the gripping handle is fixedly connected to the fixing block via the thread.

[0008] The design principle of the utility model is as follows:

[0009] Considering that the maximum distance between the double rollers of the crusher is 10mm, a fixing device can be inserted between the double rollers. Below the fixing device is a rubber inverted triangular cone. When the double rollers rotate in opposite directions, the rubber inverted triangular cone is squeezed into the gap between the double rollers through the friction between the double rollers and the rubber inverted triangular cone, thereby increasing the static friction between the two sides to fix the double rollers.

[0010] The beneficial effects of the utility model are:

[0011] The double-roller fixing mechanism is simple to manufacture, easy to operate on site, and highly reliable. It solves the problem that the double rollers cannot be fixed when cleaning materials adhered to the double rollers, saves cleaning time, improves equipment utilization, reduces the safety risks caused by the inability to fix the double rollers during cleaning, and saves labor at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the assembly of the double-roll fixing mechanism of the double-roll crusher of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the double-roller fixing mechanism of the utility model;

[0014] In the figure: 1-crushing machine frame, 2-roller shaft, 3-wheel hub, 4-roller skin, 5-bearing, 6-movable crushing cover, 7-spring safety device, 8-adjusting device, 9-fixing mechanism, 91-fixing block, 92-arc surface, 93-rubber layer, 94-grip handle. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0016] like Figure 1 and 2 As shown, a fixing mechanism for fixing the double rollers of a double roller crusher, the double roller crusher comprises a crusher frame 1, a roller shaft 2, a wheel hub 3, a roller skin 4, a bearing 5, a movable crushing cover 6, a spring safety device 7, and an adjustment device 8. The fixing mechanism 9 of the double rollers comprises a wooden wedge-shaped fixing block 91, the fixing block 91 is used to be embedded between the gaps of the double rollers, and the length of the fixing block 91 is not greater than the length of the double rollers; the left and right sides of the fixing block 91 are concave arc surfaces 92, the arc surface 92 is used to abut against the roller surface of the double rollers, and a rubber layer 93 is also attached to the arc surface 92, and the rubber layer 93 is used to increase friction. A gripping handle 94 is fixed at the center of the top of the fixing block 91, and the fixing block 91 is installed or removed by the gripping handle 94. The lower end of the gripping handle 94 is provided with a thread, and the top center of the fixing block 91 is provided with a screw hole, and the gripping handle 94 is fixedly connected to the fixing block 91 by a thread.

[0017] Its working principle is: when it is necessary to clean the materials stuck on the double rollers, open the mobile crushing cover 6 as needed, such as Figure 1 , insert the fixing mechanism into the gap between the two rollers, such as Figure 2When cleaning the materials stuck on the double rollers, apply force along the double rollers. The friction between the double rollers and the fixing mechanism will clamp the double roller fixing mechanism, thereby achieving the purpose of fixing the double rollers. After cleaning, rotate the double rollers in the opposite direction to remove the double roller fixing mechanism. After field use, the double roller fixing mechanism of the 2PG-φ200x125 double roller crusher has a reasonable structure, simple manufacture, simple installation, convenient operation and maintenance, low cost, and achieves the expected purpose.

Claims

1. A fixing mechanism for fixing double rollers of a double roller crusher, characterized in that: It includes a wedge-shaped fixing block, which is embedded in the gap between the two rollers. The length of the fixing block is not greater than the length of the two rollers. The left and right sides of the fixing block are concave arc surfaces, which are used to abut against the roller surfaces of the two rollers. A rubber layer is also attached to the arc surface, which is used to increase friction.

2. The fixing mechanism for fixing the double rollers of the double roller crusher according to claim 1, characterized in that: A gripping handle is fixed at the center of the top of the fixing block, and the fixing block is installed or removed through the gripping handle.

3. The fixing mechanism for fixing the double rollers of the double roller crusher according to claim 2, characterized in that: The lower end of the gripping handle is provided with a thread, the top center of the fixing block is provided with a screw hole, and the gripping handle is fixedly connected with the fixing block through the thread.

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