Special tool for disassembling bearing cover plate

Abstract

The invention relates to the technical field of bearing disassembly, in particular to a bearing cover plate disassembly special tool which comprises a fixing assembly, a fixing cylinder, a lead screw arranged below the fixing cylinder, a fixing sleeve arranged on the outer side of the lead screw, a first force storage mechanism, a sliding plate arranged below the fixing sleeve and a second force storage mechanism. Comprising a roller arranged in a fixed sleeve, a rotating shaft arranged in the roller, a connecting frame arranged on the outer side of the rotating shaft and a first connecting rod arranged at one end of the connecting frame. The lower end face of the fixing sleeve is supported, the fixing sleeve rapidly moves upwards to make the upper end face of the fixing sleeve impact the nut, under the inertia force effect, the bearing cover plate body and the lead screw move upwards through the nut to be gradually separated from the pin hole, and therefore efficient disassembling operation is achieved.

Description

Technical Field

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

[0002] The thrust bearing cover plate fixing pin in the coal mill gearbox is an important component in the coal mill gearbox. Its function is to fix the cover plate of the thrust bearing to ensure the stability and safety of the bearing during operation.

[0003] The thrust sliding bearing itself is used to bear the axial force generated during the operation of the coal mill. This force is transmitted to the basic structure of the gearbox through the thrust sliding bearing. During the maintenance and overhaul of the coal mill, these components may need to be inspected or replaced. However, there was no specific disassembly tool for the cylindrical pin of the thrust sliding bearing cover plate in the KMP series coal mill reducer. Therefore, it is urgently necessary to design a special tool for disassembling the bearing cover plate. 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 bearing cover plate, comprising a fixing assembly, including a fixing cylinder, a screw rod arranged below the fixing cylinder and a fixing sleeve arranged outside the screw rod; and

[0006] A first force storage mechanism includes a sliding plate disposed below the fixed sleeve; and

[0007] The second force storage mechanism includes a roller arranged inside the fixed sleeve, a rotating shaft arranged inside the roller, a connecting frame arranged outside the rotating shaft, and a first connecting rod arranged at one end of the connecting frame.

[0008] As a preferred solution of the special tool for disassembling the bearing cover plate of the present invention, the fixing assembly further comprises a nut arranged on the outside of the screw rod and a bearing cover plate body arranged on the outside of the screw rod.

[0009] As a preferred solution of the special tool for disassembling the bearing cover plate of the present invention, the first force storage mechanism also includes a first elastic member arranged on both sides of the sliding plate, and a bevel groove is opened above the sliding plate, and the bevel groove is in a bevel shape.

[0010] As a preferred solution of the special tool for disassembling the bearing cover plate of the present invention, the first elastic member is a return spring.

[0011] As a preferred solution of the special tool for disassembling the bearing cover plate described in the present invention, the second force storage mechanism also includes a first operating shaft arranged inside the first connecting rod, a first rotating shaft is arranged inside the first connecting rod, a second connecting rod is arranged outside the first operating shaft, a second rotating shaft is arranged inside the second connecting rod, a third connecting rod is arranged outside the second rotating shaft, a second operating shaft is arranged at one end of the third connecting rod, and a fourth connecting rod is arranged outside the second operating shaft.

[0012] As a preferred solution of the special tool for disassembling the bearing cover plate of the present invention, the other end of the fourth connecting rod is connected to the first rotating shaft.

[0013] As a preferred solution of the special tool for disassembling the bearing cover plate described in the present invention, wherein: a first ring is provided on the outer side of the second rotating shaft and the first rotating shaft, a first connecting plate is provided on the outer side of the first ring, a second elastic member is provided at one end of the first connecting plate, the second elastic member is a tension spring, and a first limiting rod is provided at one end of the first ring.

[0014] As a preferred solution of the special tool for disassembling the bearing cover plate described in the present invention, a second ring is provided on the outer side of the first operating shaft and the second operating shaft, a second connecting plate is provided on the outer side of the second ring, a third elastic member is provided at one end of the second connecting plate, the third elastic member is a compression spring, and a second limiting rod is provided at one end of the second ring.

[0015] As a preferred solution of the special tool for disassembling the bearing cover plate described in the present invention, it also includes a limiting component, which includes a load-bearing rod arranged inside the fixed cylinder, a sliding groove is opened inside the fixed cylinder, a pull plate is provided on the outside of the load-bearing rod, an elastic sheet is provided on the outside of the load-bearing rod, the elastic sheet is an elastic sheet, fixed plates are provided on both sides of the elastic sheet, and a limiting plate is provided at one end of the fixed plate.

[0016] As a preferred solution of the special tool for disassembling the bearing cover plate of the present invention, a fixed arc disk is provided at one end of the fixed plate, a fixed rod is provided inside the fixed arc disk, and a blocking block is provided outside the fixed rod.

[0017] The beneficial effects of the present invention are as follows: the maintenance personnel use tools to thread the screw rod and the bearing cover plate body, insert the cylindrical pad and the fixed sleeve in turn, and then screw the nut on the screw rod, so that the special tool and the bearing cover plate body are firmly connected to form a whole. The maintenance personnel hold the lower end face of the fixed sleeve with both hands, and move it upward quickly to make the fixed sleeve hit the nut against the upper end face. Under the action of this inertial force, the bearing cover plate body and the screw rod are moved upward through the nut, and gradually disengaged from the pin hole, thereby realizing efficient disassembly operation. 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 structure of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the rotating assembly and the transmission assembly in the present invention.

[0022] Figure 4 It is a schematic diagram of the local structure in the present invention. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] 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.

[0026] Example 1, reference Figures 1 to 4 , which is the first embodiment of the present invention, provides a special tool for disassembling a bearing cover plate, which can achieve higher operation and maintenance efficiency and will not cause accidental injuries to maintenance personnel.

[0027] Specifically, it includes a fixing assembly 100, including a fixing cylinder 101, a screw rod 102 disposed below the fixing cylinder 101, and a fixing sleeve 102a disposed outside the screw rod 102; and,

[0028] The first force storage mechanism 300 includes a sliding plate 301 disposed below the fixed sleeve 102a; and

[0029] The second force storage mechanism 400 includes a roller 401 disposed inside the fixed sleeve 102a, a rotating shaft disposed inside the roller 401, a connecting frame 402 disposed outside the rotating shaft, and a first connecting rod 402b disposed at one end of the connecting frame 402.

[0030] The fixing assembly 100 further includes a nut 101 a disposed on the outside of the screw rod 102 and a bearing cover plate body 103 disposed on the outside of the screw rod 102 .

[0031] Usage process: First, the maintenance personnel use tools to thread the screw rod 102 and the bearing cover plate body 103, and then put in the cylindrical pad and the fixed sleeve 102a in turn, and then screw the nut 101a on the screw rod 102 to make the special tool and the bearing cover plate body 103 firmly connected as a whole. The maintenance personnel hold the lower end face of the fixed sleeve 102a with both hands, and move it upward quickly to make the fixed sleeve 102a hit the nut 101a towards the upper end face. Under the action of this inertial force, the bearing cover plate body 103 and the screw rod 102 move upward through the nut 101a, gradually disengage from the pin hole, and then complete the disassembly, thereby achieving efficient disassembly operation.

[0032] Example 2, reference Figures 1 to 4 , which is the second embodiment of the present invention, provides a special tool for disassembling the bearing cover plate, which can save labor for maintenance personnel.

[0033] Specifically, it includes a first force storage mechanism 300 and a first elastic member 301b disposed on both sides of a sliding plate 301. An inclined groove 301a is provided on the top of the sliding plate 301, and the inclined groove 301a is in an inclined shape. The first elastic member 301b is a return spring, and the inclined groove 301a disposed on the top of the sliding plate 301 is in an inclined shape, so as to guide the roller 401, so that the roller 401 drives the subsequent components to deflect.

[0034] The second power storage mechanism 400 further includes a first operating shaft 402a disposed inside the first connecting rod 402b, a first rotating shaft 402b-1 disposed inside the first connecting rod 402b, a second connecting rod 403 disposed outside the first operating shaft 402a, a second rotating shaft 403a disposed inside the second connecting rod 403, a third connecting rod 404 disposed outside the second rotating shaft 403a, a second operating shaft 404a disposed at one end of the third connecting rod 404, and a fourth connecting rod 405 disposed outside the second operating shaft 404a. The other end of the fourth connecting rod 405 is connected to the first rotating shaft 402b-1.

[0035] A first ring 406 is provided on the outer side of the second rotating shaft 403a and the first rotating shaft 402b-1, a first connecting plate 406a is provided on the outer side of the first ring 406, a second elastic member 406a-1 is provided on one end of the first connecting plate 406a, and the second elastic member 406a-1 is a tension spring, and a first limiting rod 407 is provided on one end of the first ring 406. A second ring 408 is provided on the outer side of the first operating shaft 402a and the second operating shaft 404a, a second connecting plate 408a is provided on the outer side of the second ring 408, a third elastic member 408a-1 is provided on one end of the second connecting plate 408a, and the third elastic member 408a-1 is a compression spring, and a second limiting rod 409 is provided on one end of the second ring 408. The first limiting rod 407 and the second limiting rod 409 are provided to limit the first ring 406 and the second ring 408, thereby preventing the first ring 406 and the second ring 408 from falling off.

[0036] Usage process: When the maintenance personnel hold the outer side of the fixed sleeve 102a with both hands and accumulate force downward, the sliding plate 301 will be squeezed to make the sliding plate 301 slide into the interior of the fixed sleeve 102a, and the first elastic members 301b on both sides of the sliding plate 301 will be squeezed and force will be accumulated. When the sliding plate 301 is squeezed and rises, the inclined groove 301a provided above the sliding plate 301 squeezes and drives the roller 401 to slide to one side. When the roller 401 slides to one side, the roller 401 will gradually increase the angle between the first connecting rod 402b and the second connecting rod 403, and stretch the second elastic member 406a-1. When the first connecting rod 402b and the second connecting rod 403 are aligned, the roller 401 moves upward. When the rod 403 changes, the angles between the fourth connecting rod 405 and the first connecting rod 402b, and between the second connecting rod 403 and the third connecting rod 404 will gradually become smaller, and the height will gradually decrease. After the height decreases, the third elastic member 408a-1 will be squeezed. When the second elastic member 406a-1 is stretched and the third elastic member 408a-1 is squeezed, the second elastic member 406a-1 and the third elastic member 408a-1 will accumulate force. When the maintenance personnel quickly drive the fixed sleeve 102a to rise, the energy released by the elastic force of the first elastic member 301b, the second elastic member 406a-1 and the third elastic member 408a-1 helps to lift the fixed sleeve 102a, thereby reducing the burden on human muscles.

[0037] Example 3, reference Figures 1 to 4 , which is the third embodiment of the present invention, and this embodiment provides a special tool for disassembling the bearing cover plate, which can prevent the thread from being damaged and the nut from falling off and hitting the maintenance personnel.

[0038] Specifically, it also includes a limiting component 200, which includes a load-bearing rod 201 arranged inside a fixed cylinder 101, a sliding groove 201b is opened inside the fixed cylinder 101, a pull plate 201a is provided on the outside of the load-bearing rod 201, an elastic sheet 202 is provided on the outside of the load-bearing rod 201, the elastic sheet 202 is an elastic sheet, fixed plates 203a are provided on both sides of the elastic sheet 202, and a limiting plate 203 is provided at one end of the fixed plate 203a. A fixed arc disk 203a-1 is provided at one end of the fixed plate 203a, and a fixed rod 204 is provided inside the fixed arc disk 203a-1, and a blocking block 205 is provided on the outside of the fixed rod 204. When the nut 101a needs to be removed, the pull plate 201a is pulled, and the pull plate 201a drives the load-bearing rod 201 to slide on the sliding groove 201b, and then the load-bearing rod 201 drives the elastic sheet 202 to move outward. When the elastic sheet 202 moves outward, the elastic sheet 202 will be squeezed by the blocking block 205, so that the elastic sheet 202 will close inward, and then the elastic sheet 202 drives the limiting plate 203 and the fixed plate 203a to shrink inward, so that the limiting plate 203 is stored in the fixed tube 101, and then the limit on the nut 101a is released, so that the nut 101a is disassembled.

[0039] Usage process: When the nut 101a is hit multiple times, the threads of the screw rod 102 will be damaged. At this time, the nut 101a will become loose. When the nut 101a is hit again, the nut 101a will fly out of the outside of the screw rod 102 under the action of inertia. When the nut 101a flies to a certain distance, the nut 101a will be blocked by the limit plate 203, thereby preventing it from escaping from the disassembly tool and then hitting the maintenance personnel, causing harm to the maintenance personnel.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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 bearing cover plate, characterized in that: include, A fixing assembly (100) comprises a fixing cylinder (101), a screw rod (102) disposed below the fixing cylinder (101), and a fixing sleeve (102a) disposed outside the screw rod (102); and, The first force storage mechanism (300) comprises a sliding plate (301) disposed below the fixed sleeve (102a); and The second force storage mechanism (400) comprises a roller (401) arranged inside the fixed sleeve (102a), a rotating shaft arranged inside the roller (401), a connecting frame (402) arranged outside the rotating shaft, and a first connecting rod (402b) arranged at one end of the connecting frame (402).

2. The special tool for disassembling the bearing cover plate according to claim 1, characterized in that: The fixing assembly (100) further comprises a nut (101a) arranged on the outside of the screw rod (102) and a bearing cover plate body (103) arranged on the outside of the screw rod (102).

3. The special tool for disassembling the bearing cover plate according to claim 2, characterized in that: The first force storage mechanism (300) further comprises a first elastic member (301b) arranged on both sides of the sliding plate (301), the first elastic member (301b) being a return spring, and an inclined groove (301a) is provided above the sliding plate (301), the inclined groove (301a) being in the shape of an inclined surface.

4. The special tool for disassembling the bearing cover plate according to claim 3, characterized in that: The second power storage mechanism (400) further comprises a first operating shaft (402a) arranged inside the first connecting rod (402b), a first rotating shaft (402b-1) is arranged inside the first connecting rod (402b), and a second connecting rod (403) is arranged outside the first operating shaft (402a).

5. The special tool for disassembling the bearing cover plate according to claim 4, characterized in that: A second rotating shaft (403a) is provided inside the second connecting rod (403), a third connecting rod (404) is provided outside the second rotating shaft (403a), a second operating shaft (404a) is provided at one end of the third connecting rod (404), and a fourth connecting rod (405) is provided outside the second operating shaft (404a).

6. The special tool for disassembling the bearing cover plate according to claim 5, characterized in that: The other end of the fourth connecting rod (405) is connected to the first rotating shaft (402b-1).

7. The special tool for disassembling the bearing cover plate according to claim 6, characterized in that: A first ring (406) is provided on the outer side of the second rotating shaft (403a) and the first rotating shaft (402b-1), a first connecting disk (406a) is provided on the outer side of the first ring (406), a second elastic member (406a-1) is provided at one end of the first connecting disk (406a), the second elastic member (406a-1) is a tension spring, and a first limiting rod (407) is provided at one end of the first ring (406).

8. The special tool for disassembling the bearing cover plate according to claim 7, characterized in that: A second ring (408) is provided on the outer side of the first operating shaft (402a) and the second operating shaft (404a), a second connecting disk (408a) is provided on the outer side of the second ring (408), a third elastic member (408a-1) is provided at one end of the second connecting disk (408a), the third elastic member (408a-1) is a compression spring, and a second limiting rod (409) is provided at one end of the second ring (408).

9. The special tool for disassembling the bearing cover plate according to claim 8, characterized in that: The invention also comprises a limiting assembly (200), wherein the limiting assembly (200) comprises a bearing rod (201) arranged inside the fixed tube (101), a sliding groove (201b) is provided inside the fixed tube (101), a pulling plate (201a) is provided on the outer side of the bearing rod (201), an elastic sheet (202) is provided on the outer side of the bearing rod (201), the elastic sheet (202) is an elastic sheet, fixing plates (203a) are provided on both sides of the elastic sheet (202), and a limiting plate (203) is provided on one end of the fixing plate (203a).

10. The special tool for disassembling the bearing cover plate according to claim 9, characterized in that: A fixed arc disk (203a-1) is provided at one end of the fixed plate (203a), a fixed rod (204) is provided inside the fixed arc disk (203a-1), and a blocking block (205) is provided outside the fixed rod (204).

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