Special tool for disassembling main shaft

Abstract

The invention relates to the technical field of dismounting tools, in particular to a special tool for dismounting a main shaft, which comprises a bearing assembly, a first sliding chute arranged on the outer side of the bearing sleeve and a second sliding chute arranged on the inner side of the bearing sleeve; the fixing assembly comprises a fixing ring arranged on the outer side of the bearing sleeve, a connecting arc plate arranged on the outer side of the fixing ring and a fixing cylinder arranged at one end of the connecting arc plate; and the stabilizing assembly comprises a connecting plate arranged on the outer side of the bearing sleeve, a first rotating shaft arranged in the connecting plate, and a rotating plate arranged on the outer side of the first rotating shaft. The opening of the hole groove is gradually reduced from top to bottom, in the process that the fixing cylinder moves upwards, the main shaft is clamped and fixed, a large copper rod is subsequently hung by a traveling crane, the interior of the main shaft is knocked through the opening in the upper portion of the bearing sleeve, and then the main shaft dismounting device is suitable for dismounting main shafts of different specifications and sizes.

Description

Technical Field

[0001] The invention relates to the technical field of disassembly tools, in particular to a special tool for disassembling a spindle. Background Art

[0002] Bearing box spindle removal tools are tools specially designed to remove bearings on spindles installed in bearing boxes. These tools usually include pullers, pushers, correction devices, three-sided pressure plates, etc. They can ensure the safe and professional removal of bearings while avoiding damage to bearings or related components. For example, according to information provided by NSK, bearing loading and unloading tools can safely load and unload heavy bearings, prevent bearing damage, and save 50% of operating time compared with traditional installation methods. They are easy to operate and efficient. SKF also provides a variety of bearing puller kits. These tools are designed for quick and easy removal of bearings.

[0003] The original method of disassembling the bearing box spindle was mainly the knocking disassembly method, which was to place the bearing box flat on the ground and then use a crane to hang a large copper rod to hit the center of the spindle head from the secondary side of the bearing box. In this disassembly method, when the copper rod hits the shaft head, the impact position may not be aligned, causing the impact position to shift, thereby damaging the threads on the spindle head; or it may directly hit the bearing box body, causing damage to the bearing box body; it is also possible that the maintenance personnel operated improperly during the impact, resulting in injuries to the maintenance personnel. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a special tool for disassembling a spindle, comprising a bearing assembly, comprising a bearing sleeve, a first slide groove arranged on the outside of the bearing sleeve and a second slide groove arranged on the inside of the bearing sleeve,

[0006] The fixing assembly includes a fixing ring arranged outside the bearing sleeve, a connecting arc plate arranged outside the fixing ring, and a fixing cylinder arranged at one end of the connecting arc plate.

[0007] The stabilizing assembly includes a connecting plate arranged on the outside of the bearing sleeve, a first rotating shaft arranged inside the connecting plate, a rotating plate arranged on the outside of the first rotating shaft, and a first inclined plate arranged at one end of the rotating plate.

[0008] As a preferred solution of the special tool for disassembly of the spindle described in the present invention, the fixing assembly also includes a first curved block arranged on the inner side of the fixing ring, a connecting tube is provided below the fixing ring, an elastic arc plate is provided below the connecting tube, a locking block is provided below the elastic arc plate, and a through hole groove is opened inside the fixing tube.

[0009] As a preferred solution of the special tool for disassembling the main shaft of the present invention, the annular array of locking blocks is arranged below the connecting tube, and the elastic arc plate is inclined.

[0010] As a preferred solution of the special tool for disassembling the main shaft of the present invention, the first curved surface block is connected to the first sliding groove.

[0011] As a preferred solution of the special tool for disassembling the main shaft of the present invention, the through hole groove has different upper and lower opening widths and is in a cone shape.

[0012] As a preferred solution of the special tool for disassembly of the spindle described in the present invention, the stabilizing assembly also includes a fixing plate arranged on the outside of the fixing ring, a third rotating shaft is arranged inside the fixing plate, an operating plate is arranged outside the third rotating shaft, a second rotating shaft is arranged inside the inclined plate, and the second rotating shaft is connected to the operating plate.

[0013] As a preferred solution of the special tool for disassembly of the main shaft described in the present invention, a second inclined plate is provided below the first inclined plate, a sliding rod is provided below the first inclined plate, a limiting rod is provided at one end of the sliding rod, an elastic member is sleeved on the outer side of the sliding rod, the elastic member is a reset spring, an embedded plate is provided below the second inclined plate, and one end of the embedded plate is in the shape of an inclined surface.

[0014] As a preferred solution of the special tool for disassembly of the main shaft described in the present invention, it also includes a positioning assembly, which includes an operating ring arranged on the inner side of the bearing sleeve, a second curved block is arranged on the outer side of the operating ring, an annular groove is provided on the inner side of the operating ring, a sliding plate is arranged in the annular groove, an elastic plate is provided at one end of the sliding plate, a square groove is provided below the elastic plate, an operating shaft is arranged in the square groove, a pulley is provided on the outer side of the operating shaft, and an inclined block is provided on the inner side of the bearing sleeve.

[0015] As a preferred solution of the special tool for disassembling the main shaft of the present invention, the annular array of sliding plates is arranged in the annular groove.

[0016] As a preferred solution of the special tool for disassembling the main shaft of the present invention, the second curved surface block is connected to the second sliding groove.

[0017] The beneficial effects of the present invention are as follows: the opening of the through-hole groove gradually decreases from top to bottom, and when the fixing tube moves upward, the through-hole groove will squeeze multiple locking blocks, so that the multiple locking blocks are gradually squeezed inward, and the opening at the bottom gradually becomes smaller, and the main shaft is clamped and fixed, and then a large copper rod is hoisted by a crane through the opening above the bearing sleeve to knock on the inside of the main shaft, and then the main shafts of different specifications and sizes can be disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the local structure in the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the stabilizing component in the present invention.

[0022] Figure 4 It is a schematic diagram of the structure of the fixing component in the present invention.

[0023] Figure 5 It is a schematic diagram of the structure of the positioning component in the present invention.

[0024] Figure 6 It is a cross-sectional view of the positioning component in the present invention. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1, reference Figures 1 to 6, which is the first embodiment of the present invention, provides a special tool for disassembling a spindle, which can achieve the effect of fixing and disassembling spindles of different models and specifications, and includes a bearing assembly 100, including a bearing sleeve 101, a first slide groove 101a arranged on the outside of the bearing sleeve 101, and a second slide groove 101b arranged on the inside of the bearing sleeve 101; and,

[0029] The fixing assembly 200 includes a fixing ring 201 disposed on the outside of the bearing sleeve 101, a connecting arc plate 202 disposed on the outside of the fixing ring 201, and a fixing cylinder 203 disposed on one end of the connecting arc plate 202; and,

[0030] The stabilizing assembly 300 includes a connecting plate 301 disposed on the outside of the bearing sleeve 101 , a first rotating shaft 301 a disposed inside the connecting plate 301 , a rotating plate 302 disposed on the outside of the first rotating shaft 301 a , and a first inclined plate 303 disposed at one end of the rotating plate 302 .

[0031] The fixing assembly 200 also includes a first curved block 201a arranged on the inner side of the fixing ring 201, a connecting tube 204 is provided below the fixing ring 201, an elastic arc plate 204a is provided below the connecting tube 204, a locking block 204a-1 is provided below the elastic arc plate 204a, and a through hole groove 203a is opened inside the fixing tube 203.

[0032] The locking blocks 204a-1 are arranged in an annular array below the connecting tube 204, and the elastic arc plate 204a is inclined.

[0033] The first curved block 201a is connected to the first sliding groove 101a.

[0034] The through hole groove 203a has different opening widths at the top and bottom and is tapered.

[0035] Specifically, when the spindle needs to be disassembled, first move the disassembly tool to the top of the spindle, and sleeve the elastic arc plate 204a and the locking block 204a-1 on the outside of the spindle. After the sleeve is completed, move the fixing ring 201, and move the fixing ring 201 upward, and the connecting arc plate 202 is driven upward by the fixing ring 201, and the connecting arc plate 202 drives the fixing cylinder 203 to move upward, and the through hole groove 203a with different upper and lower opening widths is set inside the fixing cylinder 203, and the through hole groove 203a gradually decreases from top to bottom. When the fixing cylinder 203 moves upward, the through hole groove 203a will squeeze the multiple locking blocks 204a-1, so that the multiple locking blocks 204a-1 are gradually squeezed inward, and the lowermost opening gradually becomes smaller, and the spindle is clamped and fixed, and then a large copper rod is hoisted by a crane to knock on the inside of the spindle through the opening above the bearing sleeve 101, and then it is suitable for disassembling spindles of different sizes.

[0036] Example 2, reference Figures 1 to 6 , which is the second embodiment of the present invention, provides a special tool for disassembling the main shaft, which can prevent the bearing from being damaged due to uneven ground after being impacted. It includes a stabilizing component 300 and a fixing plate 304 arranged on the outside of the fixing ring 201, a third rotating shaft 304a is arranged inside the fixing plate 304, an operating plate 305 is arranged outside the third rotating shaft 304a, a second rotating shaft 303a is arranged inside the inclined plate 303, and the second rotating shaft 303a is connected to the operating plate 305.

[0037] A second inclined plate 306 is provided below the first inclined plate 303, a sliding rod 306a is provided below the first inclined plate 303, a limiting rod 306a-1 is provided at one end of the sliding rod 306a, an elastic member 306b is sleeved on the outer side of the sliding rod 306a, the elastic member 306b is a reset spring, and the elastic member 306b provided inside the second inclined plate 306 drives the first inclined plate 303 and the second inclined plate 306 to reset, an embedded plate 307 is provided below the second inclined plate 306, one end of the embedded plate 307 is in the shape of an inclined surface, and the second inclined plate 306 is moved downward by pulling it, thereby extending the length of the first inclined plate 303 and the second inclined plate 306, so as to adapt to bearings of different specifications.

[0038] Specifically, after the fixing ring 201 moves upward and drives the elastic arc plate 204a and the locking block 204a-1 to be sleeved on the outer side of the main shaft and clamped and fixed, when the fixing ring 201 rises, the fixing ring 201 drives the outer fixing plate 304 to move upward, the fixing plate 304 drives the inner third rotating shaft 304a to move upward, the third rotating shaft 304a drives the lower ends of the operating plates 305 on both sides to retract inward, the operating plates 305 drive the second rotating shaft 303a to retract inward, and the second rotating shaft 303a drives the first inclined plate 303 to move inward, and the first inclined plate 303 drives the second inclined plate 306 and the embedded plate 307 to move closer to the inside. When the end face of the embedded plate 307 is set to an inclined end, the embedded plate 307 will slide into the bottom end of the bearing when it moves closer. When the embedded plate 307 slides to a certain distance, it will slowly lift the bearing and fix it, so that when the bearing is hit hard, it will prevent the bearing from being worn due to uneven ground or gravel at the bottom of the bearing.

[0039] Example 3, reference Figures 1 to 6, which is the third embodiment of the present invention, and provides a special tool for disassembling a main shaft, which can achieve the effect of ..., and includes a positioning assembly 400, which includes an operating collar 401 arranged on the inner side of the bearing sleeve 101, a second curved surface block 401a is arranged on the outer side of the operating collar 401, an annular groove 401b is provided on the inner side of the operating collar 401, a sliding plate 403a is arranged in the annular groove 401b, an elastic plate 403 is arranged at one end of the sliding plate 403a, a square groove is provided below the elastic plate 403, an operating shaft 403b is arranged in the square groove, a pulley 402 is arranged on the outer side of the operating shaft 403b, and an inclined surface block 404 is arranged on the inner side of the bearing sleeve 101. The sliding plate 403a is arranged in an annular array in the annular groove 401b. The second curved block 401a is connected to the second slide groove 101b. Through the annular groove 401b set inside the operating ring 401, when the operating ring 401 moves downward, it will slide in the second slide groove 101b through the second curved block 401a, so that the operating ring 401 rotates. When the operating ring 401 rotates, the sliding plate 403a will drive the elastic plate 403 to be fixed in place to prevent it from getting stuck.

[0040] Specifically, after the large copper rod enters the bearing sleeve 101 through the opening above the bearing sleeve 101, the operating ring 401 is moved downward, and the operating ring 401 drives multiple sliding plates 403a to move downward. During the downward movement of the sliding plate 403a, the sliding plate 403a drives the elastic plate 403 to move downward. During the downward movement of the elastic plate 403, the elastic plate 403 drives the operating shaft 403b and the pulley 402 below to move downward. During the downward movement of the pulley 402, the pulley 402 will contact the inclined surface block 404 below. The inclined surface set by the inclined surface block 404 makes the pulley 402 move inward and get closer to the large copper rod. The operating shaft 403b and the elastic plate 403 are driven to get closer to the inside by the pulley 402, and the elastic plate 403 will be bent, thereby positioning the large copper rod to prevent the position from shifting during the knocking process.

[0041] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0042] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0043] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A special tool for disassembling a spindle, characterized by: include, A bearing assembly (100) comprises a bearing sleeve (101), a first sliding groove (101a) arranged on the outside of the bearing sleeve (101), and a second sliding groove (101b) arranged on the inside of the bearing sleeve (101); and, A fixing assembly (200) comprises a fixing ring (201) arranged outside the bearing sleeve (101), a connecting arc plate (202) arranged outside the fixing ring (201), and a fixing cylinder (203) arranged at one end of the connecting arc plate (202); and, The stabilizing assembly (300) comprises a connecting plate (301) arranged on the outside of the bearing sleeve (101), a first rotating shaft (301a) arranged inside the connecting plate (301), a rotating plate (302) arranged on the outside of the first rotating shaft (301a), and a first inclined plate (303) arranged at one end of the rotating plate (302).

2. The special tool for disassembling the main shaft according to claim 1, characterized in that: The fixing assembly (200) further comprises a first curved surface block (201a) arranged on the inner side of the fixing ring (201); a connecting tube (204) is arranged below the fixing ring (201); an elastic arc plate (204a) is arranged below the connecting tube (204); a locking block (204a-1) is arranged below the elastic arc plate (204a); and a through hole groove (203a) is provided inside the fixing tube (203).

3. The special tool for disassembling the main shaft according to claim 2, characterized in that: The locking blocks (204a-1) are arranged in an annular array below the connecting tube (204), and the elastic arc plate (204a) is inclined.

4. The special tool for disassembling the main shaft according to claim 3, characterized in that: The first curved surface block (201a) is connected to the first sliding groove (101a).

5. The special tool for disassembling the main shaft according to claim 4, characterized in that: The through hole groove (203a) has different upper and lower opening widths and is in a cone shape.

6. The special tool for disassembling the main shaft according to claim 5, characterized in that: The stabilizing assembly (300) further comprises a fixing plate (304) arranged outside the fixing ring (201), a third rotating shaft (304a) being arranged inside the fixing plate (304), an operating plate (305) being arranged outside the third rotating shaft (304a), a second rotating shaft (303a) being arranged inside the inclined plate (303), and the second rotating shaft (303a) being connected to the operating plate (305).

7. The special tool for disassembling the main shaft according to claim 6, characterized in that: A second inclined plate (306) is provided below the first inclined plate (303), a sliding rod (306a) is provided below the first inclined plate (303), a limiting rod (306a-1) is provided at one end of the sliding rod (306a), an elastic member (306b) is sleeved on the outer side of the sliding rod (306a), and the elastic member (306b) is a return spring, and an embedded plate (307) is provided below the second inclined plate (306), and one end of the embedded plate (307) is in the shape of an inclined surface.

8. The special tool for disassembling the main shaft according to claim 7, characterized in that: The invention also comprises a positioning assembly (400), wherein the positioning assembly (400) comprises an operating collar (401) arranged on the inner side of the bearing sleeve (101), a second curved surface block (401a) is arranged on the outer side of the operating collar (401), an annular groove (401b) is provided on the inner side of the operating collar (401), a sliding plate (403a) is arranged in the annular groove (401b), an elastic plate (403) is arranged at one end of the sliding plate (403a), a square groove is provided below the elastic plate (403), an operating shaft (403b) is arranged in the square groove, a pulley (402) is arranged on the outer side of the operating shaft (403b), and an inclined surface block (404) is arranged on the inner side of the bearing sleeve (101).

9. The special tool for disassembling the main shaft according to claim 8, characterized in that: The sliding plates (403a) are arranged in an annular array in the annular groove (401b).

10. The special tool for disassembling the main shaft according to claim 8 or 9, characterized in that: The second curved surface block (401a) is connected to the second sliding groove (101b).

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