A grinding device for producing a mill trunnion

Abstract

The application discloses a grinding device for mill riding wheel production, which comprises a bottom plate, a guide rail is arranged on the bottom plate, two symmetrically arranged supporting roller groups are slidably connected to the guide rail, and the two supporting roller groups are connected through a screw adjusting mechanism, a pressing group for pressing the shafts at the two ends of the riding wheel is arranged on the supporting roller group, a double-shaft adjusting group is arranged on one side of the supporting roller group, a grinding group is arranged on the double-shaft adjusting group, and a waste collecting hopper is arranged below the grinding group; through the arrangement of the supporting roller group, the riding wheel can be conveniently supported and driven to rotate; through the arrangement of the pressing group, the riding wheel can be pressed on the supporting roller group, the grinding process is stable, through the arrangement of the hoisting structure, the riding wheel can be conveniently placed on the supporting roller group or unloaded from the supporting roller group, semi-automatic operation of the riding wheel grinding is realized, and the grinding device has the advantages of convenient adjustment, uniform and stable grinding quality, low labor intensity, high safety, strong adaptability, improved production efficiency and product quality.

Description

Technical Field

[0001] This application relates to the field of mill support roller production technology, specifically a grinding device for mill support roller production. Background Technology

[0002] Mill support rollers are key load-bearing components in large industrial equipment (such as ball mills and rotary kilns), and the machining quality of their outer cylindrical surface directly affects the equipment's operational stability, lifespan, and energy consumption. After the support roller blank is cast or roughly machined, its outer cylindrical surface needs to be ground to remove oxide scale, burrs, rust, and local protrusions, preparing it for subsequent finishing or direct use.

[0003] Currently, the industry generally relies on the "workshop overhead crane hoisting + manual hand-grinding" operation mode. This mode has significant drawbacks: overhead crane scheduling is difficult, equipment idle rate is high, the overall operation process is not smooth, the force, trajectory and range of manual grinding cannot be unified, which can easily lead to over-grinding or under-grinding, affecting key dimensional and positional tolerances such as the roundness and cylindricity of the support rollers. The coexistence of heavy lifting and high-intensity manual work makes personnel prone to fatigue and face multiple threats such as dust, noise and mechanical injury.

[0004] Therefore, there is an urgent need for a grinding device for mill support roller production to solve this problem. Summary of the Invention

[0005] The technical problem to be solved by this application is to overcome the existing defects and provide a grinding device for the production of mill support rollers, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a grinding device for producing mill support rollers, comprising a base plate, a guide rail on the base plate, two symmetrically arranged support roller groups slidably connected on the guide rail, and the two are connected by a screw adjustment mechanism, a clamping group for pressing the shafts at both ends of the support roller group is provided on the support roller group, a double-shaft adjustment group is provided on one side of the support roller group, a grinding group is provided on the double-shaft adjustment group, a waste collection hopper is provided below the grinding group, and a hoisting structure is provided above the two support roller groups, the hoisting structure comprising a gantry frame, an I-beam installed on the gantry frame, an electric hoist that can move along the I-beam, and a lifting device connected to the electric hoist, the number of gantry frames being two, one of which is installed on the base plate.

[0007] Furthermore, the lifting device includes two connecting ropes connected to the electric hoist and lifting claws mounted on the connecting ropes.

[0008] Furthermore, the support roller assembly includes a bracket slidably mounted on a guide rail on the base plate and a pair of support rollers rotatably mounted on the bracket. The pair of support rollers form a V-shaped support structure for accommodating the journal of the support roller, and at least one support roller is connected to a drive motor that drives its rotation via a belt drive assembly. The drive motor is mounted on the bracket.

[0009] Furthermore, the lead screw adjustment mechanism includes a bidirectional lead screw rotatably mounted on the base plate, a nut seat fixedly connected to the bottom of the support roller group and threadedly engaged with the bidirectional lead screw, and a servo motor that drives the bidirectional lead screw to rotate, the servo motor being mounted on the base plate.

[0010] Furthermore, the clamping assembly includes a connecting frame, an electric push rod, and a clamping wheel. The electric push rod is rotatably connected to the support roller assembly, and its telescopic end is rotatably connected to the connecting frame. The middle part of the connecting frame is rotatably connected to the support roller assembly, and the upper end of the connecting frame is rotatably connected to the clamping wheel.

[0011] Furthermore, the dual-axis adjustment assembly includes a transverse slide fixed to the base plate and a longitudinal slide mounted on the transverse slide sliding component, and the grinding assembly is mounted on the longitudinal slide sliding component.

[0012] Furthermore, the grinding assembly includes a mounting frame, a grinding motor, and a grinding wheel. The mounting frame is fixed on the dual-axis adjustment assembly. Both the grinding motor and the grinding wheel are mounted on the mounting frame, and the grinding wheel is rotatably connected to the mounting frame. The power output end of the grinding motor is connected to the grinding wheel through a belt drive structure.

[0013] Furthermore, a waste collection box is provided below the waste collection hopper, and the waste collection box is placed on the bottom plate.

[0014] Compared with the prior art, this application facilitates the support of the rollers and drives their rotation by setting up the support roller group. The clamping group can press the rollers onto the support roller group, ensuring the stability of the grinding process. Furthermore, the hoisting structure makes it easy to place or remove the rollers from the support roller group, realizing semi-automatic operation of roller grinding. It has the advantages of convenient adjustment, uniform and stable grinding quality, low labor intensity, high safety, and strong adaptability, thus improving production efficiency and product quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this application;

[0016] Figure 2 This is the front view of this application;

[0017] Figure 3 This is a side view of this application.

[0018] In the diagram: 1. Base plate, 2. Guide rail, 3. Support roller group, 31. Bracket, 32. Support roller, 33. Drive motor, 4. Screw adjustment mechanism, 41. Bidirectional screw, 42. Servo motor, 5. Dual-axis adjustment group, 51. Horizontal slide, 52. Longitudinal slide, 6. Pressing group, 61. Connecting frame, 62. Electric push rod, 63. Pressing wheel, 7. Grinding group, 71. Mounting frame, 72. Grinding motor, 73. Grinding wheel, 8. Waste collection hopper, 9. Lifting structure, 91. Gantry frame, 92. I-beam, 93. Electric hoist, 94. Lifting tool. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application (for ease of description and understanding, hereinafter referred to as...), Figure 2 (The above is described above). All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0020] Please see Figure 1-3 This application provides a technical solution for a grinding device for the production of mill support rollers: a grinding device for the production of mill support rollers includes a base plate 1, a guide rail 2 is provided on the base plate 1, and two symmetrically arranged support roller groups 3 are slidably connected on the guide rail 2.

[0021] There are two guide rails 2, and the two guide rails 2 are set in parallel. The support roller group 3 is slidably connected to the guide rails 2 through a slider.

[0022] Furthermore, the support roller assembly 3 includes a bracket 31 slidably mounted on the guide rail 2 of the base plate 1 and a pair of support rollers 32 rotatably mounted on the bracket 31. The pair of support rollers 32 form a V-shaped support structure for accommodating the journal of the support roller, and at least one support roller 32 is connected to a drive motor 33 that drives its rotation via a belt drive assembly. The drive motor 33 is mounted on the bracket 31.

[0023] The support roller 32 is rotatably connected to the bracket 31. One of the support rollers 32 is connected to the belt drive group through the bracket 31 via a shaft. With this configuration, the power is transmitted to one of the support rollers 32 through the belt drive group by the drive motor 33, thereby driving the support roller 32 to rotate.

[0024] The V-shaped support structure formed by the two support rollers 32 has the function of automatic centering, which can naturally guide the journal of the support roller to stay in the center position, while providing line contact, increasing the contact area, reducing contact stress, and avoiding indentation damage to the journal surface.

[0025] The two are connected by a lead screw adjustment mechanism 4, which includes a bidirectional lead screw 41 rotatably mounted on the base plate 1, a nut seat fixedly connected to the bottom of the support roller group 3 and threadedly engaged with the bidirectional lead screw 41, and a servo motor 42 that drives the bidirectional lead screw 41 to rotate. The servo motor 42 is mounted on the base plate 1.

[0026] Its servo motor 42 can drive the bidirectional lead screw 41 to rotate, thereby driving the two support roller groups 3 to move closer or further apart, thereby adjusting the distance between the two support roller groups 3, so that the support roller groups 3 can support rollers of different widths.

[0027] The support roller group 3 is equipped with a clamping group 6 for clamping the shafts at both ends of the support roller.

[0028] Furthermore, the clamping assembly 6 includes a connecting frame 61, an electric push rod 62, and a clamping wheel 63. The electric push rod 62 is rotatably connected to the support roller assembly 3, and its telescopic end is rotatably connected to the connecting frame 61. The middle part of the connecting frame 61 is rotatably connected to the support roller assembly 3, and the upper end of the connecting frame 61 is rotatably connected to the clamping wheel 63.

[0029] The connecting frame 61 is arc-shaped and rotatably connected to the previous support rollers via a shaft. The pressure roller 63 is positioned above the two support rollers 32. The rotation of the connecting frame 61 is controlled by an electric push rod 62, thereby causing the pressure roller 63 to press or release the support rollers.

[0030] A dual-axis adjustment group 5 is provided on one side of the support roller group 3. The dual-axis adjustment group 5 includes a transverse slide 51 fixed on the base plate 1 and a longitudinal slide 52 installed on the sliding component of the transverse slide 51. The grinding group 7 is installed on the sliding component of the longitudinal slide 52.

[0031] The transverse slide 51 is fixed to the base plate 1 by the mounting platform. The transverse slide 51 is mainly composed of guide rail a, slider a and driving component. The driving component can be a cylinder, hydraulic cylinder or electric push rod. There are two guide rails a, which are arranged parallel to each other on the mounting platform. The longitudinal slide 52 is slidably connected to the guide rail a by the slider a. The telescopic end of the driving component is connected to the longitudinal slide 52. The driving component is fixed on the gantry 91 of the hoisting structure 9. The driving component can drive the longitudinal slide 52 and the grinding group 7 to move closer to or away from the support roller, thereby controlling the grinding depth of the grinding group 7 on the support roller.

[0032] The longitudinal slide table 52 mainly consists of a lead screw, guide rail b, slider b, servo motor b, and base. The base is slidably connected to the guide rail a via slider a. Two parallel guide rails b are provided on the base, and the guide rails b are perpendicular to the guide rail a. The guide rails b are connected to the mounting bracket 71 on the grinding assembly 7 via slider b. A lead screw is provided between the two guide rails b, and one end of the lead screw is rotatably connected to the base. The other end of the lead screw is connected to the power output end of the servo motor b mounted on the base. The outer side of the lead screw is connected to the mounting bracket 71 via a lead screw nut. With this configuration, the servo motor b can drive the lead screw to rotate, thereby adjusting the front and rear position of the grinding assembly 7 to facilitate the grinding of the support roller.

[0033] A grinding assembly 7 is provided on the dual-axis adjustment assembly 5. The grinding assembly 7 includes a mounting frame 71, a grinding motor 72, and a grinding wheel 73. The mounting frame 71 is fixed on the dual-axis adjustment assembly 5. The grinding motor 72 and the grinding wheel 73 are both mounted on the mounting frame 71, and the grinding wheel 73 is rotatably connected to the mounting frame 71. The power output end of the grinding motor 72 is connected to the grinding wheel 73 through a belt drive structure.

[0034] The grinding motor 72 and the grinding wheel 73 are located on the same side of the mounting bracket 71, and a protective shell is provided between the grinding motor 72 and the support wheel 73. The grinding motor 72 transmits power to the belt drive structure, which drives the grinding wheel 73 to rotate, thereby grinding the support wheel.

[0035] A waste collection hopper 8 is provided below the grinding assembly 7, and a waste collection box is provided below the waste collection hopper 8. The waste collection box is placed on the base plate 1, and the waste collection hopper 8 is installed on the mounting frame 71. The waste collection hopper 8 can move with the grinding assembly, thereby improving the waste collection effect.

[0036] A hoisting structure 9 is provided above the two support roller groups 3. The hoisting structure 9 includes a gantry frame 91, an I-beam 92 installed on the gantry frame 91, an electric hoist 93 that can move along the I-beam 92, and a lifting device 94 connected to the electric hoist 93. There are two gantry frames 91, one of which is installed on the base plate 1. The lifting device 94 is installed above the two support roller groups 3. The I-beam 92 is set perpendicular to the support roller groups 3.

[0037] Furthermore, the lifting device 94 includes two connecting ropes connected to the electric hoist 93 and lifting claws installed on the connecting ropes. The lifting claws are engaged in grooves on both sides of the support roller. According to the weight of the support roller, when the two connecting ropes are tightened, the lifting claws lift the support roller, and the electric hoist 93 moves the support roller out.

[0038] When in use: During loading, the operator uses the remote control to move the electric hoist 93 to the outside of the equipment, lowers the special lifting tool 94, and the lifting claws on the lifting tool 94 are locked in the grooves on both sides of the support roller. According to the weight of the support roller, when the two connecting ropes are tightened, the lifting claws lift the support roller and move the electric hoist 93 to directly above the support roller group 3.

[0039] Adjust the distance between the two support roller groups 3 according to the width of the support roller, start the servo motor 42, drive the bidirectional lead screw 41 to rotate, and drive the two pairs of support roller groups 3 to move synchronously along the guide rail 2, so that the support rollers 32 on the support roller group 3 can support the journals at both ends of the support roller.

[0040] The support roller is slowly lowered, allowing the operator to finely adjust the position of the electric hoist 93 so that the journal of the support roller 17 is accurately aligned with the groove of the V-shaped support roller group 3, before being fully lowered. The electric push rod 62 is activated, causing the connecting frame 61 to rotate along the bracket 31, so that the clamping wheel 63 on the connecting frame 61 presses against the support roller. The drive motor 33 is then activated, transmitting power through the belt drive group to one of the support rollers 32, thereby causing the support roller 32 to rotate.

[0041] Start the grinding motor 72, which transmits power to the belt drive structure. The belt drive structure drives the grinding wheel 73 to rotate. Then, the position of the grinding group 7 is adjusted by the dual-axis adjustment group 5 so that the grinding wheel 73 can grind the support roller.

[0042] After grinding is completed, loosen the clamping of the 6 pairs of support rollers in the clamping group, and directly use the lifting tool 94 to lift the support rollers away and transfer them to the next work station without waiting for the external overhead crane.

[0043] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding device for mill support roller production, characterized in that: Includes a base plate (1), on which a guide rail (2) is provided. Two symmetrically arranged support roller groups (3) are slidably connected on the guide rail (2), and the two are connected by a screw adjustment mechanism (4). A clamping group (6) for clamping the shafts at both ends of the support roller is provided on the support roller group (3). A double shaft adjustment group (5) is provided on one side of the support roller group (3). A grinding group (7) is provided on the double shaft adjustment group (5). A waste collection hopper (8) is provided below the grinding group (7). A hoisting structure (9) is provided above the two support roller groups (3). The hoisting structure (9) includes a gantry frame (91), an I-beam (92) installed on the gantry frame (91), an electric hoist (93) that can move along the I-beam (92), and a lifting device (94) connected to the electric hoist (93). There are two gantry frames (91), one of which is installed on the base plate (1).

2. The grinding device for mill support roller production according to claim 1, characterized in that: The lifting device (94) includes two connecting ropes connected to the electric hoist (93) and lifting claws installed on the connecting ropes.

3. The grinding device for mill support roller production according to claim 1, characterized in that: The support roller assembly (3) includes a bracket (31) slidably mounted on a guide rail (2) on a base plate (1) and a pair of support rollers (32) rotatably mounted on the bracket (31). The pair of support rollers (32) form a V-shaped support structure for accommodating the journal of the roller bearing, and at least one support roller (32) is connected to a drive motor (33) that drives its rotation via a belt drive assembly. The drive motor (33) is mounted on the bracket (31).

4. The grinding device for mill support roller production according to claim 1, characterized in that: The lead screw adjustment mechanism (4) includes a bidirectional lead screw (41) rotatably mounted on the base plate (1), a nut seat fixedly connected to the bottom of the support roller group (3) and threadedly engaged with the bidirectional lead screw (41), and a servo motor (42) that drives the bidirectional lead screw (41) to rotate, the servo motor (42) being mounted on the base plate (1).

5. A grinding device for mill support roller production according to claim 1, characterized in that: The clamping assembly (6) includes a connecting frame (61), an electric push rod (62), and a clamping wheel (63). The electric push rod (62) is rotatably connected to the support roller assembly (3), and its telescopic end is rotatably connected to the connecting frame (61). The middle part of the connecting frame (61) is rotatably connected to the support roller assembly (3), and the upper end of the connecting frame (61) is rotatably connected to the clamping wheel (63).

6. A grinding device for mill support roller production according to claim 1, characterized in that: The dual-axis adjustment group (5) includes a transverse slide (51) fixed on the base plate (1) and a longitudinal slide (52) mounted on the sliding component of the transverse slide (51). The grinding group (7) is mounted on the sliding component of the longitudinal slide (52).

7. A grinding device for mill support roller production according to claim 1, characterized in that: The grinding assembly (7) includes a mounting frame (71), a grinding motor (72), and a grinding wheel (73). The mounting frame (71) is fixed on the dual-axis adjustment assembly (5). The grinding motor (72) and the grinding wheel (73) are both mounted on the mounting frame (71), and the grinding wheel (73) is rotatably connected to the mounting frame (71). The power output end of the grinding motor (72) is connected to the grinding wheel (73) through a belt drive structure.

8. A grinding device for mill support roller production according to claim 1, characterized in that: A waste collection box is provided below the waste collection hopper (8), and the waste collection box is placed on the bottom plate (1).

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