A ball mill main shaft bushing seat and bearing overhauling support device

Abstract

The utility model relates to ball mill overhauling equipment technical field, concretely discloses a ball mill main shaft bush seat and bearing overhauling support device, it includes hydraulic lift oil cylinder, drum support and connecting screw rod, two hydraulic lift oil cylinders are set up vertically, and the telescopic end top of each hydraulic lift oil cylinder is equipped with one drum support, and two drum supports are connected with two or more connecting screw rods, the hydraulic lift oil cylinder provides power for ball mill drum jacking, and the drum support and connecting screw rod stably support the drum, the hydraulic lift oil cylinder can lift heavy load, and the safety and stability during jacking are ensured. In addition, the support arm and the clamping plate base are used as physical support, and even if the oil cylinder loses pressure, the safety of the drum can be ensured, and the overhauling safety is improved. Meanwhile, the components can be disassembled and combined, which is convenient for turnover utilization and improves the overhauling efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of ball mill maintenance equipment, and in particular to a ball mill main shaft bearing seat and bearing maintenance support device. Background Technology

[0002] A ball mill is a commonly used piece of equipment for crushing materials. Typically, a ball mill consists of a feeding section, a discharging section, a rotating section, and a transmission section. The rotating drum in the middle contains steel balls. When the drum rotates, the steel balls and the material squeeze, rub, and collide with each other, thereby achieving the crushing effect.

[0003] The middle section of the ball mill's roller is supported and connected to the base via the main shaft and bearings at both ends of the drum. The main shaft bearings and bearings bear the weight of the material and steel balls inside the drum and the drum. After long-term operation, the bearings or bearing shells will wear out and need to be replaced and repaired regularly. Since the drum is loaded with steel balls, which are quite heavy, there is a high risk of lifting with a typical overhead crane or hoist. The steel balls need to be unloaded, repaired, and then reinstalled in the drum. The overall operation is quite complicated, the construction period is long, and it affects the normal production of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a ball mill main shaft bearing seat and bearing maintenance support device to solve the problems existing in the prior art.

[0005] This utility model is implemented by the following technical solution: a ball mill main shaft bearing seat and bearing maintenance support device, including a hydraulic lifting cylinder, a roller support and connecting screws. Two hydraulic lifting cylinders are vertically arranged, and a roller support is sleeved on the top of the telescopic end of each hydraulic lifting cylinder. Two or more connecting screws are passed through and connected between the two roller supports.

[0006] Furthermore, the roller support includes a semi-circular support plate, a reinforcing rib plate, and a cylinder sleeve. The cylinder sleeve is fixedly installed at the bottom center of the support plate. The cylinder sleeve is movably sleeved on the top of the telescopic end of the hydraulic lifting cylinder. A reinforcing rib plate is fixedly installed on the outside of the support plate along the length of the support plate. A through hole is opened on the reinforcing rib plate, and a connecting screw passes through the through hole. Nuts are threadedly connected to the connecting screw and on both sides of the reinforcing rib plate.

[0007] Furthermore, a socket is fixedly provided at the top of the telescopic end of the hydraulic lifting cylinder. The socket is connected to the cylinder sleeve. A boss is integrally formed on the bottom edge of the socket. Through holes are opened on the cylinder sleeve and the socket, and a pin is inserted in the through holes.

[0008] Furthermore, it also includes a support arm and a pallet base. The pallet base includes a fixed base and pallets fixedly installed on both sides of the fixed base. Several serrated grooves are opened on the pallets along the length direction. One end of the support arm is hinged to the roller support, and the other end of the support arm is fixedly provided with a locking pin. The locking pin is movably locked in each of the serrated grooves.

[0009] The advantages of this invention are as follows: The hydraulic lifting cylinder provides the lifting power, and the roller support and connecting screw stably support the roller. Utilizing the characteristics of the hydraulic lifting cylinder, it can lift heavy loads, ensuring safe and stable lifting of the ball mill roller. Furthermore, a support arm and a clamping plate base provide physical support, ensuring continued support for the upper ball mill roller even in the event of leakage or pressure loss in the hydraulic lifting cylinder, thus ensuring safety during maintenance. Additionally, all components can be disassembled and reassembled for easy reuse, improving the efficiency of ball mill maintenance. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the structure of the roller support and the hydraulic lifting cylinder.

[0012] Figure 3 This is a structural diagram of the support arm and the base of the pallet.

[0013] Figure 4 This is a partial structural diagram of the card plate base.

[0014] In the diagram: 1. Hydraulic lifting cylinder; 2. Roller support; 3. Connecting screw; 4. Pin; 5. Support arm; 6. Clamping plate base; 101. Socket; 102. Boss; 103. Pin hole; 201. Support plate; 202. Reinforcing rib plate; 203. Cylinder sleeve; 204. Through hole; 301. Nut; 501. Clamping pin; 601. Fixed seat; 602. Clamping plate; 603. Serrated groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figure 1The following describes a ball mill main shaft bearing support and maintenance device, comprising a hydraulic lifting cylinder 1, a drum support 2, and connecting screws 3. Two hydraulic lifting cylinders 1 are vertically arranged and positioned directly below the ball mill drum, with each cylinder 1 located at one end of the drum. A drum support 2 is fitted onto the top of the telescopic end of each hydraulic lifting cylinder 1. The drum support 2 supports the ball mill drum and contacts the outer wall of the drum to prevent it from rolling. Two connecting screws pass through and connect the two drum supports 2. Rod 3 and connecting screw 3 fix the two roller supports 2 into a whole, which can prevent slippage during the lifting process. The hydraulic lifting cylinder 1 is connected to the hydraulic pump and control valve. The hydraulic pump provides oil pressure drive, and the control valve controls the lifting and lowering of the hydraulic lifting cylinder 1. The two hydraulic lifting cylinders 1 are each connected to a set of drive control equipment, which can control the lifting and lowering action independently. The hydraulic pump drives the hydraulic oil and the control valve controls the hydraulic oil flow to drive the hydraulic cylinder extension and retraction movement, which is a prior art known to those skilled in the art, and therefore will not be described in detail.

[0017] like Figure 2As shown: The roller support 2 includes a semi-circular support plate 201, a reinforcing rib plate 202, and a cylinder sleeve 203. The cylinder sleeve 203 is fixedly installed at the bottom center of the support plate 201. The cylinder sleeve 203 is movably sleeved on the top of the telescopic end of the hydraulic lifting cylinder 1. The reinforcing rib plate 202 is fixedly installed on the outside of the support plate 201 along the length of the support plate 201. A through hole 204 is opened on the reinforcing rib plate 202, and the connecting screw 3 passes through the through hole 204. The connecting screw 3 and the two sides of the reinforcing rib plate 202 are connected to the roller support 2. Nuts 301 are threadedly connected to the sides respectively; in order to ensure the stability of the connection between the hydraulic lifting cylinder 1 and the roller support 2, a socket part 101 is fixedly provided at the top of the telescopic end of the hydraulic lifting cylinder 1. The socket part 101 is connected to the cylinder sleeve 203. A boss 102 is integrally formed on the bottom edge of the socket part 101. The boss 102 is engaged with the bottom of the cylinder sleeve 203. A through pin hole 103 is opened on the cylinder sleeve 203 and the socket part 101. A pin 4 is inserted in the pin hole 103. In use, first place the hydraulic lifting cylinder 1 at the bottom of the ball mill drum. To prevent the hydraulic lifting cylinder 1 from slipping during the lifting process, temporary fixing measures can be taken to fix the base of the hydraulic lifting cylinder 1 to the ground. Then install the drum support 2, align the semi-circular concave part of the support plate 201 with the outer wall of the ball mill drum, slowly raise the top of the telescopic end of the hydraulic lifting cylinder 1, put the top of the telescopic end of the hydraulic lifting cylinder 1 into the cylinder sleeve 203, then insert the pin 4 into the pin hole 103, and then insert the connecting screw 3 into the corresponding through hole 204 of the two drum supports 2. Then screw the nuts 301 into both sides of the reinforcing rib plate 202 in sequence, and use the nuts 301 on both sides of the reinforcing rib plate 202 to tighten the reinforcing rib plate 202 in the opposite direction to complete the installation of the device. Then control the two hydraulic lifting cylinders 1 to rise upward, and the ball mill drum will be lifted upward.

[0018] like Figure 3 , Figure 4As shown: To further ensure safety during the maintenance process and prevent the hydraulic lifting cylinder 1 from losing pressure or tipping over, a support arm 5 and a clamping plate base 6 are also provided. The clamping plate base 6 includes a fixed seat 601 and clamping plates 602 fixedly disposed on both sides of the fixed seat 601. Several serrated grooves 603 are formed along the length of the clamping plates 602. One end of the support arm 5 is hinged to the roller support 2, and the other end of the support arm 5 is fixedly provided with a locking pin 501. The locking pin 501 is movably locked in each of the serrated grooves 603. In this embodiment, the locking pin 501 is unidirectionally locked in the serrated groove 603, that is, the locking pin 501 can move freely from the farthest serrated groove 603 of the fixed seat 601 to the nearest serrated groove 603 of the fixed seat 601. The serrated grooves 603 have a special shape, which allows the locking pin 501 to move freely from the farthest serrated groove 603 of the fixed seat 601 to the nearest serrated groove 603 of the fixed seat 601. The serrated grooves 603 have a special shape, which allows the locking pin 501 to move freely from the farthest serrated groove 603 of the fixed seat 601 to the nearest serrated groove 603 of the fixed seat 601. When moving towards the fixed seat 601, it will not be stuck. However, when moving away from the fixed seat 601, it will be stuck in the nearest serrated groove 603. The support arm 5 can move freely. When the hydraulic lifting cylinder 1 is at its lowest position, the locking pin 501 at the free end of the support arm 5 is placed on the outermost side, away from the fixed seat 601. As the hydraulic lifting cylinder 1 gradually rises, the free end of the support arm 5 moves inward and gradually approaches. The locking pin 501 slides from the outermost serrated groove 603 to the inside in sequence. If the hydraulic lifting cylinder 1 fails and loses pressure and moves downward at this time, the locking pin 501 will be stuck in the nearest serrated groove 603. The two support arms 5 and the lower locking plate 602 form a triangular support structure to prevent further falling and form an effective mechanical self-locking protection.

[0019] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "front", "rear", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A ball mill main shaft bearing seat and bearing maintenance support device, characterized in that, It includes a hydraulic lifting cylinder (1), a roller support (2) and a connecting screw (3). Two hydraulic lifting cylinders (1) are set vertically, and a roller support (2) is installed on the top of the telescopic end of each hydraulic lifting cylinder (1). Two or more connecting screws (3) are connected between the two roller supports (2).

2. The ball mill main shaft bearing seat and bearing maintenance support device according to claim 1, characterized in that, The roller support (2) includes a semi-circular support plate (201), a reinforcing rib plate (202), and a cylinder sleeve (203). The cylinder sleeve (203) is fixedly installed at the middle position of the bottom of the support plate (201). The cylinder sleeve (203) is movably sleeved on the top of the telescopic end of the hydraulic lifting cylinder (1). The reinforcing rib plate (202) is fixedly installed on the outside of the support plate (201) along the length direction of the support plate (201). A through hole (204) is opened on the reinforcing rib plate (202). The connecting screw (3) passes through the through hole (204). Nuts (301) are threadedly connected to the connecting screw (3) and on both sides of the reinforcing rib plate (202).

3. The ball mill main shaft bearing seat and bearing maintenance support device according to claim 2, characterized in that, A socket (101) is fixedly provided at the top of the telescopic end of the hydraulic lifting cylinder (1). The socket (101) is connected to the cylinder sleeve (203). A boss (102) is integrally formed on the bottom edge of the socket (101). A through pin hole (103) is provided on the cylinder sleeve (203) and the socket (101). A pin (4) is inserted in the pin hole (103).

4. A ball mill main shaft bearing seat and bearing maintenance support device according to any one of claims 1-3, characterized in that, It also includes a support arm (5) and a card plate base (6). The card plate base (6) includes a fixed seat (601) and a card plate (602) fixedly disposed on both sides of the fixed seat (601). Several serrated grooves (603) are provided on the card plate (602) along the length direction. One end of the support arm (5) is hinged to the roller support (2), and the other end of the support arm (5) is fixedly provided with a locking pin (501). The locking pin (501) is movably locked in each serrated groove (603).

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