Raymond mill transmission device

Abstract

The utility model relates to transmission device technical field, concretely relates to a raymond mill transmission device. Including the main power cabin of being located in raymond mill host computer bottom, the side of main power cabin is equipped with the power mechanism for giving main power cabin power, is equipped with the bridge cabin between main power cabin and power mechanism, the bottom of in main power cabin is equipped with bottom fixed base, is equipped with the main shaft of rotating support through support seat on bottom fixed base, the top of main shaft is connected with the rotating mechanism in raymond mill host computer through coupling, is equipped with the independent support bearing with seat on main shaft top close to the top. Bridge main shaft is equipped in bridge cabin, bridge main shaft and main shaft transmission connection, bridge main shaft is equipped with the shaft sleeve of rotating cooperation outside, bridge cabin is vertically spaced and is equipped with the upper support assembly and lower support assembly for fixed support shaft sleeve. The utility model is closely cooperated, and the mutual influence of power mechanism, transmission part, support structure and connecting assembly etc. safeguards the equipment stable, high -efficient operation together.

Description

Technical Field

[0001] This utility model relates to the field of transmission device technology, specifically to a transmission device for a Raymond mill. Background Technology

[0002] In Raymond mill power transmission devices, the existing two-stage transmission system uses a vertical single-point fixing method with upper and lower structures. This design has many potential risks. Because the force is borne only at a single fixed point, stress concentration is prone to occur, leading to the failure of the fixed point. During equipment operation, the fixed point may experience directional force, altering the stress state of related components and severely affecting the service life of the bearings.

[0003] Currently, only one end of the spindle is fixed, while the other end is suspended, forming a cantilever beam structure. Under the same load, this structure experiences greater bending deformation. Spindle misalignment can lead to a series of serious problems, such as belt misalignment, and in severe cases, belt breakage or slippage. This not only affects the normal operation of the equipment but also increases the frequency and difficulty of maintenance.

[0004] During operation, the cantilever end will vibrate due to unbalanced forces. Prolonged exposure to this vibration can trigger a series of chain reactions, such as bearing loosening and cracking of the bottom mounting base. Furthermore, all the load is concentrated on a single bearing, causing it to generate a large amount of heat in a short period, leading to premature fatigue failure.

[0005] Shaft runout at the cantilever end will further accelerate bearing wear, reducing bearing performance and lifespan. Simultaneously, the pulley at the cantilever end will shift due to shaft deformation, causing lateral belt wear. This not only shortens belt lifespan but also increases the risk of belt slippage, thereby increasing equipment maintenance costs and causing unnecessary production losses. Utility Model Content

[0006] This utility model provides a transmission device for a Raymond mill to solve the technical problems of equipment damage and safety risks caused by single-point support and cantilever beam structure of main shaft in the transmission device in the prior art.

[0007] To solve the above problems, the present invention provides a Raymond mill transmission device with the following technical solution:

[0008] The system includes a main power compartment located at the bottom of the Raymond mill main unit. A power mechanism for providing power to the main power compartment is provided on one side of the main power compartment. A bridge compartment is provided between the main power compartment and the power mechanism. A bottom fixed seat is provided at the bottom of the main power compartment. A main shaft is rotatably supported by a support seat on the bottom fixed seat. The top end of the main shaft is connected to a rotating mechanism inside the Raymond mill main unit through a coupling. An independently supported bearing with a seat is provided on the main shaft near the top end.

[0009] The bridge compartment is equipped with a bridge main shaft, which is connected to the main shaft drive. The bridge main shaft is externally fitted with a bushing. The bridge compartment is vertically spaced with an upper support assembly and a lower support assembly for fixing and supporting the bushing. The upper support assembly and the lower support assembly form a stable two-point support for the bushing.

[0010] Furthermore, the upper support assembly includes a support plate that is detachably fixed to the upper port of the bridge compartment. The support plate has a through hole that allows the bushing to pass through, and the outer wall of the bushing has a connecting plate that is detachably connected to the support plate by bolts.

[0011] Furthermore, the upper end of the bridge compartment is provided with a support lug, and the support plate and the support lug are detachably connected by bolts.

[0012] Furthermore, the lower support assembly includes a support plate seat fixedly disposed on the inner wall of the bridge compartment, the bushing passes through the support plate seat and the outer wall of the bushing is provided with an auxiliary connecting plate pressed on the support plate seat, and the auxiliary connecting plate and the support plate seat are detachably connected by bolts.

[0013] Furthermore, the bottom of the main shaft of the bridge is provided with a secondary pulley that is connected to the main shaft drive, and the top of the main shaft of the bridge is provided with a main pulley located outside the bridge compartment. The diameter of the secondary pulley is smaller than the inner ring diameter of the support plate seat.

[0014] Furthermore, the main shaft is provided with a drive pulley that is connected to the auxiliary belt pulley for transmission. The belt bearing near the top of the main shaft is distributed above the drive pulley, and the top of the belt bearing is detachably provided with a support plate by bolts. The support plate is detachably fixed in the main power compartment.

[0015] Furthermore, the inner wall of the main power chamber is provided with an auxiliary plate that is detachably connected to the support plate by bolts.

[0016] Furthermore, the bottom of the spindle is provided with a seated bearing, and the support base is detachably connected to the seated bearing at the bottom of the spindle by bolts.

[0017] The beneficial effects of the Raymond mill transmission device provided by this utility model are:

[0018] The main power compartment support plate and auxiliary plate form a support beam structure, and the bottom fixing seat provides dual-point fixation for the main shaft. The load is shared by two bearings, reducing the pressure on a single bearing and minimizing shaft deformation. The bearing inner ring is subjected to uniform force, making it less prone to uneven wear.

[0019] In this invention, the upper and lower support components are vertically spaced within the bridge compartment, providing stable multi-point support for the bushing. The bushing rotates in conjunction with the bridge main shaft. This support structure effectively limits the axial movement and radial runout of the bridge main shaft, ensuring that it maintains a relatively stable running trajectory under various forces, reducing vibration and noise caused by unstable operation, and improving the smoothness of equipment operation.

[0020] In this invention, the dual-point stable support of the main shaft and the dual-point stable support of the bridge main shaft work together to ensure stable power output, reduce the occurrence of uneven wear, provide stable power output for the rotating mechanism, reduce vibration and noise caused by unstable operation, improve the smoothness and accuracy of transmission, extend the service life of the equipment, reduce the failure rate, and adapt to harsh environments with high load and high speed.

[0021] The structure of this utility model allows for easy disassembly and installation of both the main power compartment and the bridge compartment. The installation sequence and connection method between the components are well-coordinated, and the operation process is clear, making it easy for staff to perform installation work. This greatly shortens the equipment assembly time and improves the efficiency of maintenance and replacement. Attached Figure Description

[0022] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the main propulsion chamber in this utility model;

[0025] Figure 3 This is a schematic diagram of the bridge compartment in this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Raymond mill main unit; 2. Main power chamber; 21. Bottom fixed seat; 22. Support seat; 23. Main shaft; 231. Drive pulley; 232. Support plate; 24. Auxiliary plate; 3. Power mechanism; 4. Bridge chamber; 41. Bridge main shaft; 411. Secondary pulley; 412. Main pulley; 42. Bushing; 421. Connecting plate; 422. Auxiliary connecting plate; 43. Upper support assembly; 431. Support plate; 44. Lower support assembly; 441. Support plate seat. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] The number of any elements in the accompanying drawings is for illustrative purposes only and not as a limitation, and any naming is for distinction only and has no limiting meaning.

[0030] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0031] An embodiment of a Raymond mill transmission device provided by this utility model:

[0032] like Figures 1 to 3 As shown,

[0033] The system includes a main power compartment 2 located at the bottom of the Raymond mill main unit 1. A power mechanism 3 is provided on one side of the main power compartment 2 to provide power to the main power compartment 2. A bridge compartment 4 is provided between the main power compartment 2 and the power mechanism 3. In actual operation, the power mechanism 3 provides the initial power and transmits it to the bridge compartment 4. The bridge compartment 4 forms a secondary transmission and transmits it to the main power compartment 2, ultimately driving the Raymond mill main unit 1 to work.

[0034] In this embodiment, a bottom fixing seat 21 is provided at the bottom of the main power compartment 2, and a main shaft 23 is provided on the bottom fixing seat 21 and rotatably supported by a support seat 22. The bottom of the main shaft 23 is provided with a seated bearing, and the support seat 22 and the seated bearing at the bottom of the main shaft 23 are detachably connected by bolts.

[0035] The top end of the main shaft 23 is connected to the rotating mechanism inside the Raymond mill host 1 via a coupling, and the main shaft 23 is provided with an independently supported bearing near the top end.

[0036] Specifically, a support plate 232 is detachably mounted on the top of the bearing with seat near the top of the main shaft 23 by bolts, and the support plate 232 is detachably fixed inside the main power chamber 2.

[0037] The inner wall of the main power compartment 2 is provided with an auxiliary plate 24 that is detachably connected to the support plate 232 by bolts.

[0038] The main shaft 23 is fixed at two points by the support beam structure formed by the support plate 232 and the auxiliary plate 24 and the bottom fixing seat 21. The load is shared by two bearings, the pressure on a single bearing is reduced and the shaft deformation is small. The bearing inner ring is subjected to uniform force and is not prone to uneven wear.

[0039] In addition, the bottom bearing of the main spindle 23 and the support base 22, as well as the support plate 232 near the top of the bearing of the main spindle 23 and the auxiliary plate 24 on the inner wall of the main power compartment 2, are all connected by bolts in a detachable manner. This connection method ensures that the main spindle 23 runs more smoothly, while also ensuring that the components can be easily and quickly assembled and positioned during equipment installation; it also allows for easy disassembly when the equipment needs maintenance, repair, or replacement of parts, greatly shortening the equipment downtime, improving work efficiency, and reducing maintenance costs.

[0040] In this embodiment, a bridge main shaft 41 is provided in the bridge compartment 4. The bridge main shaft 41 and the main shaft 23 are connected by a drive. A bushing 42 is rotatably fitted on the outside of the bridge main shaft 41. An upper support assembly 43 and a lower support assembly 44 are vertically spaced in the bridge compartment 4 to fix and support the bushing 42. The upper support assembly 43 and the lower support assembly 44 form a stable two-point support for the bushing 42.

[0041] The upper support assembly 43 and the lower support assembly 44 are vertically spaced within the bridge compartment 4, providing stable multi-point support for the bushing 42. The bushing 42 rotates with the bridge main shaft 41. This support structure effectively limits the axial movement and radial runout of the bridge main shaft 41. During transmission, the bridge main shaft 41 is subjected to various forces, such as torque, its own weight, and reaction forces from connected components. Multi-point support ensures that the bridge main shaft 41 maintains a relatively stable running trajectory under these forces, reducing vibration and noise caused by unstable operation and improving transmission accuracy.

[0042] The upper support assembly 43 includes a support plate 431 that is detachably fixed to the upper port of the bridge compartment 4. The support plate 431 has a through hole that allows the bushing 42 to pass through. The outer wall of the bushing 42 has a connecting plate 421 that is detachably connected to the support plate 431 by bolts. The outer wall of the bushing 42 abuts against the side wall of the through hole.

[0043] The bushing 42 has a bearing that fits onto the main shaft 41 of the bridge near its top. The top of the bushing 42 is provided with a pressure cap that presses against the bearing by means of bolts.

[0044] Specifically, the upper interior of the bridge compartment 4 is provided with a support ear 45, and the support plate 431 and the support ear 45 are detachably connected by bolts.

[0045] The upper support assembly 43 is detachably fixed. The support plate 431 is bolted to the support lug 45 at the upper port of the bridge compartment 4, and the connecting plate 421 on the outer wall of the bushing 42 is detachably connected to the support plate 431 by bolts. During equipment installation, workers can assemble each component in sequence, step by step, in an orderly manner. The operation process is clear, which can significantly improve installation efficiency and shorten the equipment assembly time.

[0046] In addition, the support plate 431 is detachably fixed to the upper port of the bridge compartment 4, providing a stable upper support point for the bushing 42. The bushing 42 is firmly connected to the support plate 431 through the connecting plate 421 on its outer wall, so that the bushing 42 can maintain a relatively stable position during the rotation of the bridge main shaft 41, effectively reducing the shaking and displacement of the bushing 42. This stable support structure helps to ensure the normal operation of the bridge main shaft 41, avoids problems such as vibration and increased noise of the bridge main shaft 41 caused by the instability of the bushing 42, and improves the smoothness of equipment operation.

[0047] In this embodiment, the lower support assembly 44 includes a support plate seat 441 fixedly disposed on the inner wall of the bridge compartment 4, a bushing 42 passing through the support plate seat 441, and an auxiliary connecting plate 422 pressed on the support plate seat 441 on the outer wall of the bushing 42. The auxiliary connecting plate 422 and the support plate seat 441 are detachably connected by bolts.

[0048] The bottom of the bridge main shaft 41 is provided with a secondary pulley 411 that is connected to the main shaft 23 for transmission, and the top of the bridge main shaft 41 is provided with a main pulley 412 located outside the bridge compartment 4. The diameter of the secondary pulley 411 is smaller than the inner ring diameter of the support plate seat 441 to avoid interference during disassembly and installation.

[0049] The bushing 42 has a bearing that fits onto the bridge main shaft 41 near the bottom end, and the bottom end of the bushing 42 is detachably fixed with a bearing cover for pressing against the bearing by bolts.

[0050] The bolted connection between the auxiliary connecting plate 422 and the support plate 441 provides high connection strength, ensuring a firm and reliable connection between the bushing 42 and the lower support assembly 44. This reliable connection prevents loosening or separation between the bushing 42 and the lower support assembly 44 when the main shaft 41 operates at high speed or is subjected to large torque, ensuring the normal operation of the transmission system.

[0051] In this embodiment, the main shaft 23 is provided with a drive pulley 231 that is connected to the auxiliary pulley 411 for transmission, and the bearing seat on the main shaft 23 near the top end is distributed above the drive pulley 231.

[0052] Specifically, the power mechanism 3 includes a motor, and the motor shaft is equipped with a pulley that is connected to the main pulley 412 via belt drive. The auxiliary pulley 411 is connected to the drive pulley 231 via belt drive, ultimately driving the Raymond mill host 1 to work.

[0053] It should be noted that both the main propulsion chamber 2 and the bridge chamber 4 are foundation pit structures located below the ground level, and the main propulsion chamber 2 and the bridge chamber 4 are connected.

[0054] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0055] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A transmission device for a Raymond mill, comprising a main power compartment (2) located at the bottom of a Raymond mill main unit (1), wherein a power mechanism (3) for providing power to the main power compartment (2) is provided on one side of the main power compartment (2), characterized in that, A bridge compartment (4) is provided between the main power compartment (2) and the power mechanism (3). A bottom fixing seat (21) is provided at the bottom of the main power compartment (2). A main shaft (23) is provided on the bottom fixing seat (21) and rotated by a support seat (22). The top end of the main shaft (23) is connected to the rotating mechanism in the Raymond mill host (1) through a coupling. An independently supported bearing with a seat is provided on the main shaft (23) near the top end. The bridge compartment (4) is provided with a bridge main shaft (41), which is connected to the main shaft (23) for transmission. The bridge main shaft (41) is rotatably fitted with a bushing (42). The bridge compartment (4) is vertically spaced with an upper support assembly (43) and a lower support assembly (44) for fixing and supporting the bushing (42). The upper support assembly (43) and the lower support assembly (44) form a stable double-point support for the bushing (42).

2. The Raymond mill transmission device according to claim 1, characterized in that, The upper support assembly (43) includes a support plate (431) that is detachably fixed to the upper port of the bridge compartment (4). The support plate (431) has a through hole that allows the bushing (42) to pass through. The outer wall of the bushing (42) is provided with a connecting plate (421) that is detachably connected to the support plate (431) by bolts.

3. The Raymond mill transmission device according to claim 2, characterized in that, The upper end of the bridge compartment (4) is provided with a support ear (45), and the support plate (431) and the support ear (45) are detachably connected by bolts.

4. The Raymond mill transmission device according to claim 1, characterized in that, The lower support assembly (44) includes a support plate seat (441) fixed on the inner wall of the bridge compartment (4), a bushing (42) passing through the support plate seat (441), and an auxiliary connecting plate (422) pressed on the support plate seat (441) on the outer wall of the bushing (42). The auxiliary connecting plate (422) and the support plate seat (441) are detachably connected by bolts.

5. The Raymond mill transmission device according to claim 4, characterized in that, The bottom of the bridge main shaft (41) is provided with a secondary pulley (411) that is connected to the main shaft (23) for transmission, and the top of the bridge main shaft (41) is provided with a main pulley (412) located outside the bridge compartment (4). The diameter of the secondary pulley (411) is smaller than the inner diameter of the support plate seat (441).

6. The Raymond mill transmission device according to claim 5, characterized in that, The main shaft (23) is provided with a drive pulley (231) that is connected to the auxiliary pulley (411). The main shaft (23) has a bearing seat near the top end distributed above the drive pulley (231), and the top of the bearing seat is provided with a support plate (232) that can be detached by bolts. The support plate (232) can be detachably fixed inside the main power compartment (2).

7. The Raymond mill transmission device according to claim 6, characterized in that, The inner wall of the main power chamber (2) is provided with an auxiliary plate (24) that is detachably connected to the support plate (232) by bolts.

8. The Raymond mill transmission device according to claim 1, characterized in that, The bottom of the main shaft (23) is provided with a seated bearing, and the support seat (22) is detachably connected to the seated bearing at the bottom of the main shaft (23) by bolts.

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