Lubricated gear mechanism for reciprocating stirrer of pre-reactor

Abstract

The application relates to the technical field of hydrogen fluoride production equipment, in particular to a lubricating transmission mechanism of a pre-reactor with reciprocating stirring; through the specific structure and positional relationship of a transmission box, a spherical bearing, an oil pumping cavity, an input shaft, an output shaft, an inclined cylindrical limiting sleeve set, a transmission structure, an oil pumping piston and other structures, the rotation of the output shaft and the reciprocating movement along the axial direction of the output shaft can be realized without additional driving mechanisms, the transmission connection relationship of the inclined cylindrical limiting sleeve set, the transmission structure and the oil pumping piston is used to spontaneously realize the circulation of lubricating oil, a new driving mechanism is no longer needed, stable circulation lubrication is provided for key lubricating parts, and the problem that the lubricating performance is affected due to the excessively high temperature of local lubricating oil is solved.

Description

Technical Field

[0001] This invention relates to the field of hydrogen fluoride production equipment technology, specifically to a lubrication transmission mechanism for a reciprocating stirring pre-reactor. Background Technology

[0002] The pre-reactor used in hydrogen fluoride production is a horizontal solid-liquid reactor. Its working principle involves simultaneously mixing raw materials sulfuric acid and fluorite for pre-reaction, followed by the reaction in the reactor to generate hydrogen fluoride gas. The core component of the pre-reactor is the stirring mechanism. The stirring shaft of the mechanism is rotatably connected to the frame via bearings. A motor connected to the end drive drives the stirring shaft to rotate, thereby utilizing the stirring blades to act on the reactants, achieving the purpose of pre-reaction and material transport. To ensure the stability of the rotational connection between the stirring shaft and the bearings, and to maintain continuous lubrication and cooling at the bearing-shaft connection point, an additional motor-driven lubrication pump is typically required to circulate lubricating oil continuously, acting on the bearing area. This is especially important for stirring shaft structures that require reciprocating movement, where the lubrication performance requirements for the bearing area are even higher. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a lubrication transmission mechanism for a reciprocating stirring pre-reactor, which can achieve efficient circulating lubrication of the bearing parts by means of the reciprocating movement of the stirring shaft without the need to introduce an additional lubrication pump driven by a motor.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: The lubricated drive mechanism for the reciprocating stirring pre-reactor includes: The transmission box has a sealed receiving cavity filled with lubricating oil. An input shaft is rotatably connected to the first end of the transmission box via a first bearing. The first end of the input shaft is drively connected to the drive mechanism, and the second end extends into the receiving cavity. An output shaft, the first end of which is movably connected axially to the second end of the input shaft, the output shaft and the input shaft rotate synchronously, and the second end of the output shaft is movably connected to the movable sealing part of the second end of the transmission box; An inclined cylindrical limiting kit, wherein the inclined cylindrical limiting kit is fitted onto the output shaft; The transmission mechanism includes an upper annular cylinder connected to the circumferential surface of a slanted cylindrical limiting assembly via a second bearing; a spherical limiting part in the middle and a transmission rod at the lower part; a spherical bearing that mates with the spherical limiting part in the transmission box; a pumping chamber at the lower part of the spherical bearing; a pumping piston slidably connected within the pumping chamber; a limiting groove at the upper part of the pumping piston; and the transmission rod being movably limited and fitted into the limiting groove. An oil inlet pipe, one end of which is connected to the lower part of the receiving cavity, and the other end of which is connected to the pump oil cavity; The oil outlet pipe includes a main oil outlet pipe, one end of which is connected to the oil pump chamber, and the other end of which is connected to a first branch pipe and a second branch pipe. The first branch pipe is connected to the first bearing, and the second branch pipe is connected to the movable sealing part at the second end of the transmission box.

[0005] Furthermore, in the lubrication transmission mechanism of the aforementioned reciprocating stirring pre-reactor, the limiting groove is a straight groove perpendicular to the output shaft axis.

[0006] Furthermore, in the lubrication transmission mechanism of the aforementioned reciprocating stirring pre-reactor, the transmission rod is cylindrical in shape.

[0007] Furthermore, in the lubrication transmission mechanism of the aforementioned reciprocating stirring pre-reactor, the spherical limiting part is connected to the receiving cavity.

[0008] Furthermore, in the lubrication transmission mechanism of the aforementioned reciprocating stirring pre-reactor, the second end of the input shaft is provided with a limiting cylinder, the first end of the output shaft is provided with a limiting post movably connected to the limiting cylinder, the side of the limiting cylinder is provided with a strip-shaped hole arranged along its axial direction, and the side of the limiting post is provided with a protrusion slidably connected to the strip-shaped hole.

[0009] Furthermore, in the lubrication transmission mechanism of the aforementioned reciprocating stirring pre-reactor, the oil pump piston is cylindrical in shape.

[0010] The beneficial effects of this invention are as follows: by setting specific structures and positional relationships for the transmission box, ball bearing, oil pump chamber, input shaft, output shaft, inclined cylindrical limit kit, transmission structure, oil pump piston, etc., the rotation of the output shaft and its reciprocating movement along its axial direction can be achieved through the ingenious design of the transmission structure without the need for an additional drive mechanism. Furthermore, the circulation of lubricating oil is spontaneously achieved through the transmission connection relationship of the inclined cylindrical limit kit, transmission structure, and oil pump piston, eliminating the need to introduce a new drive mechanism. This provides stable circulating lubrication for key lubrication parts and avoids excessively high local lubricating oil temperature that could affect lubrication performance. Attached Figure Description

[0011] Figure 1 This is a structural cross-sectional view of a lubrication transmission mechanism for a reciprocating stirring pre-reactor according to a specific embodiment of the present invention. Figure 2 for Figure 1 Enlarged view of part A; Figure 3 This is a partial structural schematic diagram of the lubrication transmission mechanism of a reciprocating stirring pre-reactor according to a specific embodiment of the present invention. Label Explanation: 1. Transmission box; 11. Receiving cavity; 12. First bearing; 13. Movable seal; 14. Ball bearing; 15. Pump oil chamber; 2. Input shaft; 21. Limiting cylinder; 22. Strip hole; 3. Drive mechanism; 4. Output shaft; 41. Limiting post; 42. Protrusion; 5. Inclined cylindrical limit kit; 6. Transmission mechanism; 61. Circular cylinder; 611. Second bearing; 62. Spherical limiting part; 63. Transmission rod; 7. Pump piston; 71. Limiting groove; 72. Oil inlet pipe; 731. Oil outlet main pipe; 732. First branch pipe; 733. Second branch pipe. Detailed Implementation

[0012] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0013] Please refer to Figures 1 to 3 The present invention relates to a lubrication transmission mechanism 6 for a reciprocating stirring pre-reactor, comprising: The transmission box 1 has a sealed receiving cavity 11 inside, and the receiving cavity 11 is filled with lubricating oil. Input shaft 2 is rotatably connected to the first end of transmission box 1 via first bearing 12. The first end of input shaft 2 is connected to drive mechanism 3, and the second end extends into receiving cavity 11. Output shaft 4, the first end of which is movably connected to the second end of input shaft 2 along its axial direction, the output shaft 4 and input shaft 2 rotate synchronously, and the second end of output shaft 4 is movably connected to the movable sealing part 13 at the second end of transmission box 1; Inclined cylindrical limiting kit 5, which is fitted onto the output shaft 4; The transmission mechanism 6 has an upper annular cylinder 61 connected to the circumferential surface of the inclined cylindrical limiting kit 5 via a second bearing 611; a spherical limiting part 62 in the middle of the transmission mechanism 6 and a transmission rod 63 at the lower part of the transmission mechanism 6; the transmission box 1 has a spherical bearing 14 that cooperates with the spherical limiting part 62, a pumping chamber 15 at the lower part of the spherical bearing 14, a pumping piston 7 slidably connected in the pumping chamber 15, a limiting groove 71 at the upper part of the pumping piston 7, and the transmission rod 63 movably limitingly cooperating with the limiting groove 71; Oil inlet pipe 72, one end of which is connected to the lower part of the receiving cavity 11 and the other end is connected to the pump oil cavity 15; The oil outlet pipe includes an oil outlet main pipe 731, one end of which is connected to the oil pump chamber 15, and the other end of which is connected to a first branch pipe 732 and a second branch pipe 733. The first branch pipe 732 is connected to the first bearing 12, and the second branch pipe 733 is connected to the movable sealing part 13 at the second end of the transmission box 1.

[0014] In the above embodiments, the lubrication transmission method of the lubrication transmission mechanism 6 of the reciprocating stirring pre-reactor includes: The drive mechanism 3 drives the input shaft 2 to rotate, the input shaft 2 drives the output shaft 4 to rotate, and the output shaft 4 drives the inclined cylindrical limiting kit 5 to rotate. The annular cylinder 61 of the transmission mechanism 6, driven by the inclined cylindrical limiting kit 5 through the second bearing 611, swings around the spherical limiting part 62 as the axis, thereby driving the output shaft 4 to move back and forth along its axial direction. The transmission rod 63 of the transmission mechanism 6 swings along with it. Through the sliding fit between the transmission rod 63 and the limiting groove 71 of the oil pump piston 7, the oil pump piston 7 moves back and forth in the oil pumping chamber 15. By utilizing the negative pressure, the lubricating oil in the receiving chamber 11 is drawn into the oil pumping chamber 15, and then pumped into the first bearing 12 and the movable sealing part 13 through the oil outlet main pipe 731, the first branch pipe 732 and the second branch pipe 733 respectively, so as to efficiently pump oil lubricate the key transmission lubrication parts. The lubricating oil spontaneously flows back to the receiving chamber 11 to form a circulating flow, avoiding local lubricating oil temperature from being too high and affecting the lubrication performance.

[0015] In the above embodiments, it should be noted that a first check valve is provided at the connection between the oil inlet pipe 72 and the oil pump chamber 15 to prevent the lubricating oil in the oil pump chamber 15 from flowing back into the receiving chamber 11 during the pumping process. A second check valve is provided at the connection between the oil outlet pipe and the oil pump chamber 15 to prevent the lubricating oil pumped to the first branch pipe 732 or the second branch pipe 733 from flowing back into the oil pump chamber 15 during the pumping process. The pumped oil is cooled by an external radiator before entering the first branch pipe 732 or the second branch pipe 733.

[0016] In the above embodiments, by setting specific structures and positional relationships for the transmission box 1, ball bearing 14, oil pump chamber 15, input shaft 2, output shaft 4, inclined cylindrical limit kit 5, transmission structure, oil pump piston 7, etc., the output shaft 4 (connected to the pre-reactor stirring shaft) can be rotated and moved back and forth along its axial direction without the need for an additional drive mechanism 3. The transmission structure is cleverly designed to achieve spontaneous circulation of lubricating oil, eliminating the need to introduce a new drive mechanism 3. This provides stable circulating lubrication for key lubrication parts and avoids excessively high local lubricating oil temperature that could affect lubrication performance.

[0017] As a preferred embodiment, refer to Figure 3 The limiting groove 71 is a straight groove perpendicular to the axis of the output shaft 4.

[0018] In the above embodiments, since the movement of the transmission rod 63 is a multi-directional swing with the spherical limiting part 62 as the axis, the straight groove structure provides sliding space for the lateral movement of the transmission rod 63, so that under the transmission of the transmission rod 63, the oil pump piston 7 can reciprocate along the axial direction of the output shaft 4 in the oil pump chamber 15.

[0019] In a preferred embodiment, the transmission rod 63 is cylindrical in shape.

[0020] In the above embodiments, the cylindrical transmission rod 63 can smoothly contact the limiting groove 71 of the oil pump piston 7 when it moves in multiple directions, further improving the stability of the transmission.

[0021] In a preferred embodiment, the spherical limiting part 62 is in communication with the receiving cavity 11. This allows the lubricating oil in the receiving cavity 11 to lubricate the spherical fiber cloth and the spherical bearing 14.

[0022] In a preferred embodiment, the second end of the input shaft 2 is provided with a limiting cylinder 21, and the first end of the output shaft 4 is provided with a limiting post 41 movably connected to the limiting cylinder 21. The side of the limiting cylinder 21 is provided with a strip hole 22 arranged along its axial direction, and the side of the limiting post 41 is provided with a protrusion 42 slidably connected to the strip hole 22.

[0023] Reference Figure 2 as well as Figure 3 By utilizing the limiting relationship between the limiting post 41 and the strip hole 22, the input shaft 2 can drive the output shaft 4 to rotate synchronously. At the same time, by utilizing the sliding connection between the limiting post 41 and the strip hole 22, the output shaft 4 can reciprocate along its axial direction during rotation.

[0024] As another preferred implementation, refer to Figure 3 The pump piston 71 is cylindrical, and the corresponding pump chamber 15 is also cylindrical. This structure facilitates the installation of a sealing ring between the pump piston 71 and the pump chamber, preventing lubricating oil leakage during the pumping process.

[0025] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A lubricated transmission mechanism for a reciprocating stirring pre-reactor, characterized in that, include: The transmission box has a sealed receiving cavity filled with lubricating oil. An input shaft is rotatably connected to the first end of the transmission box via a first bearing. The first end of the input shaft is drively connected to the drive mechanism, and the second end extends into the receiving cavity. An output shaft, the first end of which is movably connected axially to the second end of the input shaft, the output shaft and the input shaft rotate synchronously, and the second end of the output shaft is movably connected to the movable sealing part of the second end of the transmission box; An inclined cylindrical limiting kit, wherein the inclined cylindrical limiting kit is fitted onto the output shaft; The transmission mechanism includes an upper annular cylinder connected to the circumferential surface of a slanted cylindrical limiting assembly via a second bearing; a spherical limiting part in the middle and a transmission rod at the lower part; a spherical bearing that mates with the spherical limiting part in the transmission box; a pumping chamber at the lower part of the spherical bearing; a pumping piston slidably connected within the pumping chamber; a limiting groove at the upper part of the pumping piston; and the transmission rod being movably limited and fitted into the limiting groove. An oil inlet pipe, one end of which is connected to the lower part of the receiving cavity, and the other end of which is connected to the pump oil cavity; The oil outlet pipe includes a main oil outlet pipe, one end of which is connected to the oil pump chamber, and the other end of which is connected to a first branch pipe and a second branch pipe. The first branch pipe is connected to the first bearing, and the second branch pipe is connected to the movable sealing part at the second end of the transmission box. The second end of the input shaft is provided with a limiting cylinder, and the first end of the output shaft is provided with a limiting post movably connected to the limiting cylinder. The side of the limiting cylinder is provided with a strip-shaped hole arranged along its axial direction, and the side of the limiting post is provided with a protrusion slidably connected to the strip-shaped hole.

2. The lubrication transmission mechanism of the reciprocating stirring pre-reactor according to claim 1, characterized in that, The limiting groove is a straight groove perpendicular to the output shaft axis.

3. The lubrication transmission mechanism of the reciprocating stirring pre-reactor according to claim 1, characterized in that, The transmission rod is cylindrical in shape.

4. The lubrication transmission mechanism of the reciprocating stirring pre-reactor according to claim 1, characterized in that, The spherical limiting part is connected to the receiving cavity.

5. The lubrication transmission mechanism of the reciprocating stirring pre-reactor according to claim 1, characterized in that, The pump piston is cylindrical in shape.

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