Mud-proof lead screw of ore separation box

Abstract

The utility model aims to provide a mud-proof lead screw for an ore separation box, aiming at the problem that the mud-proof lead screw for the ore separation box of a dressing plant in a poor operating environment is easy to wear. The mud-proof lead screw of the ore separation box comprises an oil injection limiting upper cover, an upper sleeve, a hand wheel, a lower sleeve, a nut, a bearing, a bearing seat, a protective pipe, a guide lead screw and a thrust bearing. The upper portion of the guide lead screw is sleeved with the upper sleeve, the oil injection limiting upper cover is arranged at the top of the upper sleeve, the hand wheel is fixedly connected to the outer wall of the upper sleeve, the middle of the guide lead screw is sleeved with the lower sleeve, the lower sleeve is fixedly connected to the lower portion of the upper sleeve, and a nut corresponding to the guide lead screw is arranged on the inner wall of the lower sleeve. The thrust bearing is arranged on the outer wall of the lower sleeve, the bearing seat is connected with the thrust bearing and fixedly connected to an external support, and the protective pipe is arranged on the lower portion of the guide lead screw in a sleeving mode and fixedly connected to the lower portion of the lower sleeve. The mud-proof protection pipe is arranged in the effective stroke interval of the lead screw, and the thrust bearing is arranged at the position of the nut, so that the adjusting operation is more labor-saving.

Description

Technical Field

[0001] The utility model belongs to the technical field of ore dressing equipment, in particular to an anti-mud lead screw for an ore separation box. Background Art

[0002] In each process of mineral processing, the mineral processing plant needs to distribute the ore to the corresponding separation equipment through various ore distribution boxes, and the opening and closing of the slurry feed and the adjustment of the feed size need to be controlled by the screw stroke to drive the rubber weight. The size of the gap between the rubber weight and the discharge port determines the size of the feed. Whether the feed amount is adjusted in a timely and accurate manner directly determines the mineral processing indicators, and then determines the efficiency of the mineral processing plant. However, the operating environment of the ore distribution box is generally poor. The splash of slurry causes the trapezoidal transmission thread of the screw to easily accumulate slurry and rust. It cannot be improved by increasing the number of lubrication times, resulting in a short service life of the screw. Frequent replacement of the screw not only affects production efficiency but also easily causes fluctuations in mineral processing indicators. Summary of the invention

[0003] The purpose of the utility model is to provide a mud-proof screw for a ore separation box in a ore dressing plant with a poor operating environment, which is aimed at the problem of easy wear of the mud-proof screw for the ore separation box. By arranging a mud-proof protective tube in the effective stroke range of the screw and arranging a thrust bearing at the nut position, the adjustment operation is more labor-saving, the service life of the screw can be extended from 2 months to 2 years, effectively playing a mud-proof effect, and reducing the labor intensity of the staff.

[0004] The technical solution of the utility model is as follows:

[0005] An anti-mud screw for an ore separation box, comprising an oil filling limit upper cover, an upper sleeve, a hand wheel, a lower sleeve, a screw nut, a bearing, a bearing seat, a protective tube, a guide screw and a thrust bearing;

[0006] The upper sleeve is sleeved on the upper part of the guide screw, and an oil filling limit cover is provided on the top of the upper sleeve. The handwheel is fixedly connected to the outer wall of the upper sleeve. The lower sleeve is sleeved on the middle part of the guide screw and fixedly connected to the bottom of the upper sleeve, and a nut corresponding to the guide screw is provided on the inner wall of the lower sleeve. The thrust bearing is arranged on the outer wall of the lower sleeve, the bearing seat is connected to the thrust bearing and fixedly connected to the external bracket, and the protective tube is sleeved on the lower part of the guide screw and fixedly connected to the bottom of the lower sleeve.

[0007] Furthermore, the anti-mud screw of the ore separation box and the oil filling limit upper cover are provided with an oil filling hole.

[0008] Furthermore, in the above-mentioned mud-proof lead screw of the ore distribution box, the inner wall of the protective tube is provided with a guide key, and the guide lead screw is provided with a guide key groove corresponding to the guide key.

[0009] Compared with the prior art, the advantages of the utility model are as follows:

[0010] 1. A protective sleeve is set within the effective travel range of the trapezoidal lead screw to solve the impact of mineral mud splashing on the thread, and a refueling hole and a limit cover are set on the top of the lead screw assembly. Refuel once a month to effectively prevent mud and rust, ensuring the long-term effective use of the lead screw;

[0011] 2. By setting a thrust bearing at the nut, the screw can change from conventional sliding friction to rolling friction during the rising and falling process, which saves time and effort in operation;

[0012] 3. Open a guide keyway on the lead screw and set a guide key on the lower cover of the bearing box to control the rotation and swing of the lead screw so that the rubber weight can move in a straight line stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 , a schematic cross-sectional view of the utility model;

[0014] Figure 2 , a top view schematic diagram of the upper sleeve and the hand wheel of the utility model;

[0015] Figure 3 , a schematic cross-sectional view of the lower sleeve of the utility model;

[0016] Figure 4 , a schematic cross-sectional view of the protective tube of the utility model;

[0017] Figure 5 , a front view of the lead screw of the utility model.

[0018] Among them, 1. Oil filling limit cover, 2. Upper sleeve, 3. Handwheel, 4. Lower sleeve, 5. Nut, 6. Thrust bearing, 7. Bearing seat, 8. Protective tube, 9. Guide screw, 11. Oil filling hole, 41. Nut, 81. Guide key, 91. Guide keyway. DETAILED DESCRIPTION Example

[0019] A mud-proof lead screw for a ore separation box, comprising an oil injection limit upper cover 1, an upper sleeve 2, a hand wheel 3, a lower sleeve 4, a nut 5, a thrust bearing 6, a bearing seat 7, a protective tube 8, and a guide lead screw 9;

[0020] The upper sleeve is sleeved on the upper part of the guide screw, and an oil filling limit cover is provided on the top of the upper sleeve, and an oil filling hole 11 is provided on the oil filling limit cover. The handwheel is fixedly connected to the outer wall of the upper sleeve, and the lower sleeve is sleeved on the middle part of the guide screw and fixedly connected to the bottom of the upper sleeve, and a nut 41 corresponding to the guide screw is provided on the inner wall of the lower sleeve. The thrust bearing is arranged on the outer wall of the lower sleeve, and the bearing seat is connected to the thrust bearing and fixedly connected to the external bracket. The protective tube is sleeved on the lower part of the guide screw and fixedly connected to the bottom of the lower sleeve, and a guide key 81 is provided on the inner wall of the protective tube, and a guide key groove 91 corresponding to the guide key is provided on the guide screw.

[0021] The method of using the utility model is:

[0022] When the opening of the ore box needs to be adjusted, the hand wheel is rotated clockwise or counterclockwise, and the hand wheel drives the upper sleeve and the lower sleeve. The bearing on the outer wall of the lower sleeve assists the sleeve to rotate, making the operation more time-saving and labor-saving, and the nut in the lower sleeve drives the guide screw to move up and down. In addition, the guide keyway on the screw and the guide key of the lower guide tube can prevent the screw from rotating and swinging, so that the rubber weight connected to the bottom of the screw can stably move in a straight line; a protective sleeve is set within the effective stroke range of the screw to solve the impact of ore mud splashing on the thread, and a refueling hole and a limit cover are set on the top of the screw assembly. Refueling is done once a month to effectively prevent mud and rust, ensuring the long-term effective use of the screw.

Claims

1. A mud-proof screw for a ore separation box. It is characterized in that It includes an oil filling limit cover, an upper sleeve, a hand wheel, a lower sleeve, a nut, a bearing, a bearing seat, a protective tube, a guide screw and a thrust bearing; The upper sleeve is sleeved on the upper part of the guide screw, and an oil filling limit cover is provided on the top of the upper sleeve. The handwheel is fixedly connected to the outer wall of the upper sleeve. The lower sleeve is sleeved on the middle part of the guide screw and fixedly connected to the bottom of the upper sleeve, and a nut corresponding to the guide screw is provided on the inner wall of the lower sleeve. The thrust bearing is arranged on the outer wall of the lower sleeve, the bearing seat is connected to the thrust bearing and fixedly connected to the external bracket, and the protective tube is sleeved on the lower part of the guide screw and fixedly connected to the bottom of the lower sleeve.

2. The anti-mud screw of the ore distribution box according to claim 1, It is characterized in that An oil filling hole is arranged on the oil filling limit upper cover.

3. The anti-mud screw of the ore distribution box according to claim 1, It is characterized in that A guide key is arranged on the inner wall of the protective tube, and a guide key groove corresponding to the guide key is arranged on the guide screw.

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