Thrust self-aligning roller bearing clearance adjusting tool and method for high-concentration pulping machine

Abstract

The invention relates to the technical field of assembly tools, in particular to a thrust self-aligning roller bearing clearance adjusting tool for a high-concentration pulping machine and an adjusting method.The thrust self-aligning roller bearing clearance adjusting tool comprises a tool shaft, and a tool baffle disc is coaxially arranged at one end of the tool shaft; the tool shaft is sleeved with a front bearing and a rear bearing, a tool bearing chamber and a tool bearing chamber sleeve are arranged between the front bearing and the rear bearing, the front end and the rear end of the front bearing abut against the tool blocking disc and the tool bearing chamber respectively, the front end of the rear bearing abuts against the tool bearing chamber sleeve, the rear end of the rear bearing abuts against a pressing ring, and a push cylinder is arranged at the rear end of the pressing ring. A tool core shaft extending in the front-back direction is arranged in the tool bearing chamber, the tool core shaft is sleeved with a belleville spring, and the front end and the rear end of the belleville spring abut against the tool bearing chamber and the tool bearing chamber sleeve respectively. The thrust self-aligning roller bearing clearance adjusting tool for the high-concentration pulping machine and the adjusting method are suitable for bearing assembling work of various types of high-concentration pulping machines; and the problem of low processing precision is solved.

Description

Technical Field

[0001] The invention relates to the technical field of assembly tooling, in particular to a clearance adjustment tooling and an adjustment method for a thrust spherical roller bearing used in a high-concentration refiner. Background Art

[0002] The high-consistency refiner is a single-disc refiner. The spindle speed can reach 1500-1800rpm under normal working conditions, and the axial force of the spindle during rotation is very large. Therefore, in order to ensure the normal operation of the spindle, the spindle bearing design needs to meet two important conditions: high speed and large radial force. At present, thrust spherical roller bearings are generally selected for bearings. During the assembly process of this type of bearing, the bearing clearance is particularly important. If the clearance is too small, the bearing resistance will be large, resulting in overheating and damage to the bearing, and even damage to the spindle; if the clearance is too large, it will cause equipment vibration or even damage.

[0003] Therefore, reasonable bearing clearance is a crucial step in the assembly process. The clearance is adjusted to 0.08-0.25mm during the conventional assembly process. However, the conventional clearance setting adjustment method still causes the thrust spherical roller bearing to be too tight or too loose. The main reasons for this problem are:

[0004] 1. Different types of high-consistency refiners use different bearing types;

[0005] 2. The machining precision of the bearing chamber is low. Summary of the invention

[0006] In order to solve the technical problems existing in the background technology, the present invention provides a thrust spherical roller bearing clearance adjustment tool and adjustment method for a high-concentration refiner, which is applicable to the bearing assembly work of various types of high-concentration refiners and makes up for the problem of low processing accuracy.

[0007] The technical solution adopted by the present invention is:

[0008] A thrust spherical roller bearing clearance adjustment tool for a high-concentration pulping machine comprises: a tool shaft, one end of which is coaxially provided with a tool baffle; a front bearing and a rear bearing are sleeved on the tool shaft, a tool bearing chamber and a tool bearing chamber sleeve are provided between the front bearing and the rear bearing, the front and rear ends of the front bearing are respectively abutted against the tool baffle and the tool bearing chamber, the front end of the rear bearing is abutted against the tool bearing chamber sleeve, the rear end of the rear bearing is abutted against a pressure ring, and the rear end of the pressure ring is provided with a push cylinder.

[0009] A tooling core shaft extending in the front-to-back direction is arranged in the tooling bearing chamber, and a butterfly spring is arranged on the outer sleeve of the tooling core shaft. The front and rear ends of the butterfly spring are respectively in contact with the tooling bearing chamber and the tooling bearing chamber sleeve.

[0010] Furthermore, the push cylinder is driven by a hydraulic device and moves in the front-rear direction, and the pushing pressure of the push cylinder is confirmed according to the hydraulic pressure.

[0011] Furthermore, a clearance is set between the relative end faces of the tooling bearing chamber and the tooling bearing chamber sleeve.

[0012] Furthermore, the abutment contact between the butterfly spring and the tooling bearing chamber is provided with an adjustment gasket sleeved on the outside of the tooling core shaft.

[0013] The adjustment method of the clearance adjustment tool of the thrust spherical roller bearing for high-consistency refiner includes:

[0014] S1. Bearing measurement:

[0015] Measure the front bearing axial distance of the front bearing, measure the rear bearing axial distance of the rear bearing, and record them respectively;

[0016] S2. Installation of tooling:

[0017] The hydraulic device drives the push cylinder to sequentially sleeve the front bearing, the tooling bearing chamber, the tooling bearing chamber sleeve, the rear bearing, and the pressure ring on the tooling shaft to press each other. At this time, the tooling bearing chamber and the tooling bearing chamber sleeve are close to each other, so that the butterfly spring contracts and provides thrust. The tooling clearance between the tooling bearing chamber and the tooling bearing chamber sleeve relative end faces is 0.27±0.01mm;

[0018] Record the adjustment shims that match the butterfly springs;

[0019] S3, bearing set measurement:

[0020] Measure the axial distance of the outer end faces of the front and rear bearings and record them;

[0021] Remove the tooling.

[0022] Further, S4, bearing assembly:

[0023] The high-consistency refiner comprises: a rotating shaft and a bearing chamber mounting frame, wherein a baffle is coaxially arranged at one end of the rotating shaft;

[0024] The front bearing and the rear bearing are assembled on the rotating shaft, and a bearing chamber, a bearing chamber sleeve and a shaft sleeve are arranged between the front bearing and the rear bearing, the bearing chamber is fixed on the bearing chamber mounting frame, and the bearing chamber sleeve and the bearing chamber are mutually clamped;

[0025] The other end of the rotating shaft is sleeved with a pressure-mouth tube and threadedly provided with a thrust nut, and a thrust washer sleeved on the rotating shaft is sandwiched between the pressure-mouth tube and the thrust nut;

[0026] The front and rear ends of the front bearing are respectively in contact with the baffle plate and the bearing chamber, and the front and rear ends of the rear bearing are respectively in contact with the bearing chamber sleeve and the pressure tube;

[0027] A core shaft extending in the front-to-back direction is arranged in the bearing chamber, and a butterfly spring and an adjustment gasket are arranged outside the core shaft. The front and rear ends of the butterfly spring are respectively abutted against the bearing chamber and the bearing chamber sleeve, and the adjustment gasket is clamped between the bearing chamber and the butterfly spring.

[0028] Furthermore, the relative end surface gaps between the bearing chamber and the bearing chamber sleeve are set;

[0029] The right protrusion of the bearing chamber sleeve relative to the bearing chamber is the bearing chamber sleeve positioning axial distance, and the bearing chamber sleeve positioning axial distance is used to calculate the relative end surface clearance between the bearing chamber and the bearing chamber sleeve.

[0030] Furthermore, the axial distance between the inner end faces of the bearing group of the front bearing and the rear bearing = the axial distance between the outer end faces of the bearing group - the axial distance between the front bearing - the axial distance between the rear bearing.

[0031] Furthermore, the axial distance of the sleeve is equal to the axial distance of the inner end surface of the bearing assembly.

[0032] Furthermore, chamfers are provided at the outer wall edges at both ends of the sleeve.

[0033] The beneficial effects of the clearance adjustment tooling and adjustment method of the thrust spherical roller bearing for a high-consistency refiner of the present invention are as follows:

[0034] 1. The axial spacing of the bearings is limited by tooling processing the sleeves; the axial spacing is located by the bearing housing sleeves to verify that the tooling clearance is within a reasonable range; thus, it is suitable for the bearing assembly of various types of high-consistency refiners, and the assembled bearings are within a reasonable force range;

[0035] 2. Adjust the gasket through tooling and use gaskets of different thicknesses to ensure uniform elastic force of the butterfly spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the tooling of an example of the present invention;

[0037] Figure 2 It is a schematic diagram of the assembly of an example of the present invention;

[0038] Figure 3 This invention is an example Figure 2 Enlarged schematic diagram of part A.

[0039] In the figure:

[0040] 10. Tooling shaft, 11. Tooling baffle, 12. Press ring, 13. Push cylinder,

[0041] 21. Front bearing, 22. Rear bearing,

[0042] 31. Tool bearing chamber, 32. Tool bearing chamber sleeve, 33. Tool mandrel, 34. Butterfly spring,

[0043] 100, swivel, 101, baffle, 102, pressure tube, 103, thrust nut, 104, thrust washer, 105, bearing chamber mounting frame,

[0044] 301, bearing chamber, 302, bearing chamber sleeve, 303, mandrel, 304, jacket seat,

[0045] 200, bushing,

[0046] 401, axial distance of the front bearing, 402, axial distance of the rear bearing, 403, tooling clearance, 404, axial distance of the outer end face of the bearing group, 405, axial distance of the bearing chamber sleeve positioning, 406, axial distance of the inner end face of the bearing group. DETAILED DESCRIPTION

[0047] In order to more clearly and specifically explain the specific implementation purpose and implementation mode of the present invention, the technical solution of the present invention will be fully described below. The described embodiments are part of the embodiments of the present invention, but not all of them. Without making creative work, all other embodiments based on the embodiments described in the present invention belong to the protection scope of the present invention.

[0048] The thrust spherical roller bearing clearance adjustment tool for a high-concentration pulping machine of the present invention is as follows: Figure 1 As shown, it includes: a tooling shaft 10, one end of which is coaxially provided with a tooling baffle 11; a front bearing 21 and a rear bearing 22 are sleeved on the tooling shaft 10, and a tooling bearing chamber 31 and a tooling bearing chamber sleeve 32 are arranged between the front bearing 21 and the rear bearing 22, the front and rear ends of the front bearing 21 are respectively abutted against the tooling baffle 11 and the tooling bearing chamber 31, the front end of the rear bearing 22 is abutted against the tooling bearing chamber sleeve 32, and the rear end of the rear bearing 22 is abutted against a pressure ring 12, and the rear end of the pressure ring 12 is provided with a push cylinder 13, the push cylinder 13 is driven by a hydraulic device and moves along the front and rear directions, and the pushing pressure of the push cylinder 13 is confirmed according to the liquid supply pressure.

[0049] A tooling core shaft 33 extending in the front-to-back direction is arranged in the tooling bearing chamber 31, and a butterfly spring 34 is arranged on the outer sleeve of the tooling core shaft 33. The front and rear ends of the butterfly spring 34 are respectively abutted against the tooling bearing chamber 31 and the tooling bearing chamber sleeve 32. A gap is arranged between the relative end faces of the tooling bearing chamber 31 and the tooling bearing chamber sleeve 32, and an adjustment gasket sleeved on the outside of the tooling core shaft 33 is arranged between the butterfly spring 34 and the tooling bearing chamber 31.

[0050] According to the specific structure of the clearance adjustment tooling for the thrust spherical roller bearing for the high-consistency pulping machine in the above embodiment, Figure 2 , Figure 3 As shown, the adjustment method of the clearance adjustment tooling of the thrust spherical roller bearing for high-consistency refiner is further explained below:

[0051] S1. Bearing measurement:

[0052] Measure the front bearing axial distance 401 of the front bearing 21, measure the rear bearing axial distance 402 of the rear bearing 22, and record them respectively;

[0053] S2. Installation of tooling:

[0054] The push cylinder 13 is driven by the hydraulic device to sequentially sleeve the front bearing 21, the tooling bearing chamber 31, the tooling bearing chamber sleeve 32, the rear bearing 22, and the pressure ring 12 on the tooling shaft 10 to press each other. At this time, the tooling bearing chamber 31 and the tooling bearing chamber sleeve 32 are close to each other, so that the butterfly spring 34 contracts and provides thrust. The tooling clearance 403 of the opposite end faces of the tooling bearing chamber 31 and the tooling bearing chamber sleeve 32 is 0.27±0.01mm;

[0055] Record the adjustment gasket that matches the butterfly spring 34;

[0056] S3, bearing set measurement:

[0057] Measure the axial distance 404 of the outer end faces of the front bearing 21 and the rear bearing 22, and record them;

[0058] Remove the tooling.

[0059] S4. Bearing assembly:

[0060] The high-consistency refiner comprises: a rotating shaft 100 and a bearing chamber mounting frame 105, wherein a baffle plate 101 is coaxially arranged at one end of the rotating shaft 100;

[0061] The front bearing 21 and the rear bearing 22 are assembled on the rotating shaft 100. A bearing chamber 301, a bearing chamber sleeve 302 and a sleeve 200 are arranged between the front bearing 21 and the rear bearing 22. The sleeve axial distance of the sleeve 200 is equal to the axial distance 406 of the inner end face of the bearing group. Chamfers are arranged at the outer wall edges at both ends of the sleeve 200. The bearing chamber 301 is fixed on the bearing chamber mounting frame 105. The bearing chamber sleeve 302 and the bearing chamber 301 are mutually engaged.

[0062] The other end of the rotating shaft 100 is sleeved with a pressure-mouth tube 102 and a thrust nut 103 is threadedly provided thereon, and a thrust washer 104 sleeved on the rotating shaft 100 is sandwiched between the pressure-mouth tube 102 and the thrust nut 103;

[0063] The front and rear ends of the front bearing 21 are respectively in contact with the baffle plate 101 and the bearing chamber 301, and the front and rear ends of the rear bearing 22 are respectively in contact with the bearing chamber sleeve 302 and the pressure port cylinder 102;

[0064] A core shaft 303 extending in the front-to-back direction is arranged in the bearing chamber 301, and a butterfly spring 34 and an adjusting gasket are arranged on the outer surface of the core shaft 303. The front and rear ends of the butterfly spring 34 are respectively abutted against the bearing chamber 301 and the bearing chamber sleeve 302. The relative end surface gaps of the bearing chamber 301 and the bearing chamber sleeve 302 are arranged. The adjusting gasket is clamped between the bearing chamber 301 and the butterfly spring 34. The right side protrusion of the bearing chamber sleeve 302 relative to the bearing chamber 301 is the bearing chamber sleeve positioning axial distance 405. The bearing chamber sleeve positioning axial distance 405 is used to calculate the relative end surface gaps of the bearing chamber 301 and the bearing chamber sleeve 302.

[0065] The axial distance 406 of the inner end faces of the bearing group of the front bearing 21 and the rear bearing 22 = the axial distance 404 of the outer end faces of the bearing group - the axial distance 401 of the front bearing - the axial distance 402 of the rear bearing.

[0066] According to the specific structure of the thrust spherical roller bearing clearance adjustment tooling for the high-concentration refiner in the above embodiment, the adjustment method of the thrust spherical roller bearing clearance adjustment tooling for the high-concentration refiner is further described below:

[0067] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Through the above description, relevant staff can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the contents of the specification. All so-called equal changes and modifications of the shapes, structures, features and spirits described in the scope of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The clearance adjustment tool for thrust spherical roller bearing for high-consistency refiner is characterized by: include: A tooling shaft (10), wherein a tooling baffle (11) is coaxially arranged at one end of the tooling shaft (10); A front bearing (21) and a rear bearing (22) are sleeved on the tooling shaft (10); a tooling bearing chamber (31) and a tooling bearing chamber sleeve (32) are arranged between the front bearing (21) and the rear bearing (22); the front and rear ends of the front bearing (21) are respectively in contact with the tooling baffle (11) and the tooling bearing chamber (31); the front end of the rear bearing (22) is in contact with the tooling bearing chamber sleeve (32); the rear end of the rear bearing (22) is in contact with a pressure ring (12); and the rear end of the pressure ring (12) is provided with a push cylinder (13); A tooling core shaft (33) extending in the front-rear direction is arranged in the tooling bearing chamber (31), and a butterfly spring (34) is arranged on the outer sleeve of the tooling core shaft (33). The front and rear ends of the butterfly spring (34) are respectively in contact with the tooling bearing chamber (31) and the tooling bearing chamber sleeve (32).

2. The thrust spherical roller bearing clearance adjustment tool for a high-consistency refiner according to claim 1, characterized in that: The push cylinder (13) is driven by a hydraulic device and moves in the front-rear direction, and the pushing pressure of the push cylinder (13) is confirmed according to the supply pressure of the liquid.

3. The clearance adjustment tool for thrust spherical roller bearing for high-consistency refiner according to claim 2, characterized in that: The relative end surface gaps of the tooling bearing chamber (31) and the tooling bearing chamber sleeve (32) are set.

4. The thrust spherical roller bearing clearance adjustment tool for a high-consistency refiner according to claim 3, characterized in that: The butterfly spring (34) is in contact with the tool bearing chamber (31) and is provided with an adjustment gasket sleeved on the outside of the tool core shaft (33).

5. A method for adjusting the clearance adjustment tool of a thrust spherical roller bearing for a high-concentration refiner, according to claim 4, characterized in that: S1. Bearing measurement: Measure the front bearing axial distance (401) of the front bearing (21), measure the rear bearing axial distance (402) of the rear bearing (22), and record them respectively; S2. Installation of tooling: The push cylinder (13) is driven by a hydraulic device to sequentially sleeve the front bearing (21), the tool bearing chamber (31), the tool bearing chamber sleeve (32), the rear bearing (22), and the pressure ring (12) on the tool shaft (10) to press each other. At this time, the tool bearing chamber (31) and the tool bearing chamber sleeve (32) are close to each other, so that the butterfly spring (34) contracts and provides thrust, and the tool clearance (403) between the opposite end surfaces of the tool bearing chamber (31) and the tool bearing chamber sleeve (32) is 0.27±0.01mm; Record the adjustment gasket matched with the butterfly spring (34); S3, bearing set measurement: Measure the axial distance (404) of the outer end faces of the front bearing (21) and the rear bearing (22) of the bearing set, and record them; Remove the tooling.

6. The clearance adjustment tool and adjustment method of thrust spherical roller bearing for high-consistency refiner according to claim 5, characterized in that: S4. Bearing assembly: The high-consistency refiner comprises: a rotating shaft (100) and a bearing chamber mounting frame (105); a baffle (101) is coaxially arranged at one end of the rotating shaft (100); The front bearing (21) and the rear bearing (22) are assembled on the rotating shaft (100); a bearing chamber (301), a bearing chamber sleeve (302) and a shaft sleeve (200) are arranged between the front bearing (21) and the rear bearing (22); the bearing chamber (301) is fixed on the bearing chamber mounting frame (105); the bearing chamber sleeve (302) and the bearing chamber (301) are mutually engaged; The other end of the rotating shaft (100) is sleeved with a pressure-mouth tube (102) and threadedly provided with a thrust nut (103), and a thrust washer (104) sleeved on the rotating shaft (100) is sandwiched between the pressure-mouth tube (102) and the thrust nut (103); The front and rear ends of the front bearing (21) are respectively in contact with the baffle plate (101) and the bearing chamber (301), and the front and rear ends of the rear bearing (22) are respectively in contact with the bearing chamber sleeve (302) and the pressure-mouth cylinder (102); A core shaft (303) extending in the front-to-back direction is arranged in the bearing chamber (301), and a butterfly spring (34) and an adjustment gasket are arranged outside the core shaft (303). The front and rear ends of the butterfly spring (34) are respectively in contact with the bearing chamber (301) and the bearing chamber sleeve (302), and the adjustment gasket is sandwiched between the bearing chamber (301) and the butterfly spring (34).

7. The clearance adjustment tool and adjustment method of thrust spherical roller bearing for high-consistency refiner according to claim 6, characterized in that: The relative end surface clearances of the bearing chamber (301) and the bearing chamber sleeve (302) are arranged; The right protruding portion of the bearing chamber sleeve (302) relative to the bearing chamber (301) is the bearing chamber sleeve positioning axial distance (405), and the bearing chamber sleeve positioning axial distance (405) is used to calculate the relative end surface clearance between the bearing chamber (301) and the bearing chamber sleeve (302).

8. The clearance adjustment tool and adjustment method of thrust spherical roller bearing for high-consistency refiner according to claim 6, characterized in that: The axial distance (406) of the inner end faces of the bearing group of the front bearing (21) and the rear bearing (22) = the axial distance (404) of the outer end faces of the bearing group - the axial distance (401) of the front bearing - the axial distance (402) of the rear bearing.

9. The clearance adjustment tool and adjustment method of thrust spherical roller bearing for high-consistency refiner according to claim 8, characterized in that: The shaft sleeve axial distance of the shaft sleeve (200) is equal to the axial distance (406) of the inner end surface of the bearing assembly.

10. The clearance adjustment tool and adjustment method of thrust spherical roller bearing for high-consistency refiner according to claim 6, characterized in that: Chamfers are arranged at the outer wall edges of both ends of the shaft sleeve (200).

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