Lower shaft head structure of grading machine for mining

Abstract

The utility model relates to the technical field of lower shaft heads, in particular to a lower shaft head structure of a grading machine for mining, which comprises a lower shaft head main body, a sealing ring is movably sleeved on the surface of the right end of the lower shaft head main body, a baffle is fixedly sleeved on the surface of the sealing ring, and a rubber pad is fixedly connected with the right side of the baffle. A first spring is fixedly connected to the inner wall of the rubber pad, and an adjusting mechanism is installed on the surface of the right end of the lower shaft head body. The right end of the lower shaft head body and the ball bearing are installed on the inner wall of the barrel, the right end of the lower shaft head body penetrates out of the barrel, the rotary knob is rotated to rotate the lead screw, then the nut moves on the lead screw, the connecting plate, the connecting rod, the baffle, the rubber pad and the sealing ring move, one side of the rubber pad makes contact with the surface of the barrel, and the lower shaft head body is fixed. And meanwhile, the spring I is compressed, so that the rubber pad is in close contact with the surface of the barrel, and the lower shaft head main body and the barrel can be sealed.

Description

Technical Field

[0001] The utility model relates to the technical field of lower shaft heads, in particular to a lower shaft head structure of a classifier for mining. Background Art

[0002] In mining operations, the classifier is an important equipment used to classify ore or other materials. The lower shaft head structure of the classifier is one of the key components of the classifier. Its structural design and performance directly affect the overall performance and service life of the classifier.

[0003] After searching, research and analysis, it was found that the lower shaft head structure of the classifier still has the following shortcomings to a certain extent.

[0004] For example, if the connection between the shaft head and the cylinder cannot be sealed, powder may easily enter the connection, which may cause grinding and breaking after a long time. Severe vibration will occur during operation, which will damage the equipment itself and shorten its service life. In order to solve the above technical problems, we have designed a lower shaft head structure for a mining classifier. Utility Model Content

[0005] The utility model aims to provide a lower shaft head structure of a classifier for mining, which has the advantages of sealing and adjustable positioning, and solves the problem that the connection between the shaft head and the cylinder cannot be sealed, which easily causes powder to enter the connection, often causing grinding and breaking after a long time, and causing serious shaking during operation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lower shaft head structure of a mining grader, comprising a lower shaft head body, a surface movable sleeve at the right end of the lower shaft head body is provided with a sealing ring, a surface fixed sleeve of the sealing ring is provided with a baffle, a rubber pad is fixedly connected to the right side of the baffle, a spring is fixedly connected to the inner wall of the rubber pad, an adjustment mechanism is installed on the surface of the right end of the lower shaft head body, the adjustment mechanism includes a connecting plate, and a positioning mechanism is installed on the surface of the connecting plate.

[0007] Preferably, the adjustment mechanism includes a connecting rod, and the number of the connecting rods is two, which are respectively welded to the upper and lower sides of the right side of the baffle. The right end of the connecting rod slides through the right end of the lower shaft head body and is fixedly connected to the left side of the connecting plate. The right side of the connecting plate is fixedly embedded with a nut, and the inner wall of the nut is threaded with a screw rod.

[0008] Preferably, the left end of the screw rod is rotatably connected to the right end of the lower shaft head body through a bearing, and a knob is welded to the right end of the screw rod.

[0009] Preferably, the positioning mechanism includes two square plates, which are respectively fixed on the upper and lower sides of the right end of the lower shaft head body, and the right end of the square plate slides through to the right side of the connecting plate. Grooves are provided on the upper and lower sides of the right side of the connecting plate, and the inner wall of the groove is fixedly connected with a spring 2, one end of the spring 2 is fixedly connected with a pull plate, and the side of the pull plate away from the spring 2 is fixedly connected with a clamping rod, and the end of the clamping rod away from the pull plate passes through the connecting plate and the square plate.

[0010] Preferably, a clamping hole matched with the clamping rod is opened on the surface of the square plate, and the diameter of the clamping hole is slightly larger than the diameter of the clamping rod.

[0011] Preferably, square holes matching the square plate are provided on both the upper and lower sides of the right side of the connecting plate, and the sealing ring and the rubber pad are made of wear-resistant material.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model installs the right end of the lower shaft head body and the ball bearing on the inner wall of the cylinder, penetrates the right end of the lower shaft head body to the outside of the cylinder, rotates the knob to rotate the screw rod, and then moves the nut on the screw rod, so that the connecting plate, the connecting rod, the baffle plate, the rubber pad and the sealing ring move, so that one side of the rubber pad contacts with the surface of the cylinder, and at the same time, the spring is compressed to make the rubber pad closely contact with the surface of the cylinder, thereby having the advantage of being able to seal between the lower shaft head body and the cylinder, thereby effectively preventing powder from entering the connection for a long time and rotating and wearing, and improving the service life of the lower shaft head body.

[0014] 2. The utility model pulls the two pull plates closer to each other during the process of turning the knob, thereby compressing the second spring and moving the clamping rod, so that the clamping rod is separated from the original clamping hole on the square plate, and the connection plate is moved on the square plate under the rotation of the screw rod to drive the nut to move. After the connection plate is adjusted, the pull plate is loosened to insert the clamping rod into the corresponding clamping hole, thereby having the advantage of being able to re-position and limit the baffle plate, effectively preventing the screw rod from loosening and rotating during the rotation of the lower shaft head body to cause the connection plate to move, thereby improving the stability and safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a partially cutaway stereoscopic schematic diagram of the utility model;

[0017] Figure 3 For this utility model Figure 2 A is an enlarged schematic diagram;

[0018] Figure 4It is a partial cutaway perspective schematic diagram of the connection plate of the utility model;

[0019] Figure 5 For this utility model Figure 4 A magnified schematic diagram of B.

[0020] In the figure: 1. lower shaft head body; 2. sealing ring; 3. baffle; 4. rubber pad; 5. spring 1; 6. adjustment mechanism; 61. connecting rod; 62. connecting plate; 63. nut; 64. screw rod; 65. knob; 7. positioning mechanism; 71. square plate; 72. groove; 73. spring 2; 74. pull plate; 75. clamping rod; 76. clamping hole. DETAILED DESCRIPTION

[0021] See also Figure 1-Figure 5 A lower shaft head structure of a mining classifier includes a lower shaft head body 1, a sealing ring 2 is provided on the surface movable sleeve of the right end of the lower shaft head body 1, a baffle 3 is provided on the surface fixed sleeve of the sealing ring 2, a rubber pad 4 is fixedly connected to the right side of the baffle 3, a spring 5 is fixedly connected to the inner wall of the rubber pad 4, an adjusting mechanism 6 is installed on the surface of the right end of the lower shaft head body 1, the adjusting mechanism 6 includes a connecting plate 62, and a positioning mechanism 7 is installed on the surface of the connecting plate 62.

[0022] See also Figure 1 and Figure 2 The adjusting mechanism 6 includes a connecting rod 61. By setting the connecting rod 61, the baffle 3 and the connecting plate 62 are connected, so that the baffle 3 can be driven to move when the connecting plate 62 moves. There are two connecting rods 61, which are respectively welded on the upper and lower sides of the right side of the baffle 3. The right end of the connecting rod 61 slides through the right end of the lower shaft head body 1 and is fixedly connected to the left side of the connecting plate 62. The right side of the connecting plate 62 is fixedly inlaid with a nut 63. By setting the nut 63, when the screw rod 64 rotates and cooperates with the guide of the connecting rod 61, the nut 63 can move on the surface of the screw rod 64, thereby moving the connecting plate 62, and the inner wall of the nut 63 is threadedly connected with the screw rod 64.

[0023] See also Figure 1 and Figure 2 The left end of the screw rod 64 is rotatably connected to the right end of the lower shaft head body 1 through a bearing, and a knob 65 is welded to the right end of the screw rod 64. By setting the knob 65, rotating it can easily drive the screw rod 64 to rotate, making it more labor-saving when driving.

[0024] See also Figure 1 , Figure 4 and Figure 5When the locking nut 75 is unlocked, the locking nut 77 is unlocked and the locking nut 78 is unlocked, so that the locking nut 77 is unlocked and the lock is locked.

[0025] See also Figure 5 A clamping hole 76 matched with the clamping rod 75 is opened on the surface of the square plate 71 , and the diameter of the clamping hole 76 is slightly larger than the diameter of the clamping rod 75 .

[0026] See also Figure 1 The upper and lower sides of the right side of the connecting plate 62 are provided with square holes adapted to the square plate 71. The sealing ring 2 and the rubber pad 4 are made of wear-resistant materials.

[0027] When in use, the right end of the lower shaft head body 1 is installed on the inner wall of the cylinder body with the ball bearing, the right end of the lower shaft head body 1 is passed through the outside of the cylinder body, and the knob 65 is turned to rotate the screw rod 64, thereby causing the nut 63 to move on the screw rod 64, so that the connecting plate 62, the connecting rod 61, the baffle 3, the rubber pad 4 and the sealing ring 2 move, so that one side of the rubber pad 4 contacts the surface of the cylinder body, and the spring 1 5 is compressed to make the rubber pad 4 closely contact the surface of the cylinder body, thereby sealing the lower shaft head body 1 and the cylinder body. In the process of turning the knob 65, the two pull plates 74 are pulled close to each other, thereby compressing the spring 2 73 and moving the clamping rod 75, so that the clamping rod 75 is separated from the original clamping hole 76 on the square plate 71, and the connecting plate 62 moves on the square plate 71 under the rotation of the screw rod 64 to drive the nut 63 to move. After the adjustment of the connecting plate 62 is completed, the pull plate 74 is loosened, and the clamping rod 75 is inserted into the corresponding clamping hole 76, and the baffle 3 is positioned and limited again.

[0028] In summary: the lower shaft head structure of the mining classifier, through the cooperation of the sealing ring 2, the baffle 3, the rubber pad 4, the spring 5, the adjustment mechanism 6 and the positioning mechanism 7, solves the problem that the connection between the shaft head and the cylinder cannot be sealed, which easily causes powder to enter the connection, often causing grinding and breaking after a long time, and causing serious shaking during operation.

Claims

1. A lower shaft head structure of a mining classifier, comprising a lower shaft head body (1), characterized in that: The movable sleeve on the surface of the right end of the lower shaft head body (1) is provided with a sealing ring (2), the fixed sleeve on the surface of the sealing ring (2) is provided with a baffle (3), the right side of the baffle (3) is fixedly connected to a rubber pad (4), the inner wall of the rubber pad (4) is fixedly connected to a spring (5), the surface of the right end of the lower shaft head body (1) is installed with an adjustment mechanism (6), the adjustment mechanism (6) includes a connecting plate (62), and the surface of the connecting plate (62) is installed with a positioning mechanism (7).

2. The lower shaft head structure of a mining classifier according to claim 1, characterized in that: The adjustment mechanism (6) comprises a connecting rod (61), the number of the connecting rods (61) is two, and they are respectively welded to the upper and lower sides of the right side of the baffle (3), the right end of the connecting rod (61) slides through the right end of the lower shaft head body (1) and is fixedly connected to the left side of the connecting plate (62), the right side of the connecting plate (62) is fixedly inlaid with a nut (63), and the inner wall of the nut (63) is threadedly connected with a screw rod (64).

3. The lower shaft head structure of a mining classifier according to claim 2, characterized in that: The left end of the screw rod (64) is rotatably connected to the right end of the lower shaft head body (1) via a bearing, and a knob (65) is welded to the right end of the screw rod (64).

4. The lower shaft head structure of a mining classifier according to claim 1, characterized in that: The positioning mechanism (7) comprises a square plate (71), the number of the square plates (71) is two, and the square plates (71) are respectively fixed on the upper and lower sides of the right end of the lower shaft head body (1), the right end of the square plate (71) slides through the right side of the connecting plate (62), the upper and lower sides of the right side of the connecting plate (62) are provided with grooves (72), the inner wall of the groove (72) is fixedly connected with a spring 2 (73), one end of the spring 2 (73) is fixedly connected with a pull plate (74), the side of the pull plate (74) away from the spring 2 (73) is fixedly connected with a clamping rod (75), and the end of the clamping rod (75) away from the pull plate (74) passes through the connecting plate (62) and the square plate (71).

5. The lower shaft head structure of a mining classifier according to claim 4, characterized in that: A clamping hole (76) adapted to the clamping rod (75) is provided on the surface of the square plate (71), and the diameter of the clamping hole (76) is slightly larger than the diameter of the clamping rod (75).

6. The lower shaft head structure of a mining classifier according to claim 4, characterized in that: The upper and lower sides of the right side of the connecting plate (62) are both provided with square holes matched with the square plate (71), and the sealing ring (2) and the rubber pad (4) are both made of wear-resistant material.

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