Wind wheel bearing assembling equipment

Abstract

The utility model discloses wind wheel bearing assembling equipment, which relates to the technical field of air conditioners and comprises a mounting seat, a positioning component, a buffering component and a press fitting component. The positioning assembly comprises a positioning table arranged on the mounting base, a positioning groove is formed in the upper end face of the positioning table, and the positioning groove is used for being matched with a to-be-assembled wind wheel in shape, so that the to-be-assembled wind wheel is arranged with a wind wheel shaft facing upwards; the buffer assembly is arranged between the positioning table and the mounting seat, so that the positioning table can float in the vertical direction under the action of external force; the press-fitting assembly comprises a press-fitting part arranged above the positioning table, the press-fitting part is movably mounted on the mounting base in the vertical direction, and the press-fitting part is used for press-fitting the bearing on a wind wheel shaft of the wind wheel located in the positioning groove; according to the technical scheme, progressive buffering acting force is provided for the positioning table through the buffering assembly, part of impact energy is absorbed, and therefore the bearing is protected against the influence of overlarge stress, and damage to the bearing is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a wind wheel bearing assembly device. Background Art

[0002] The impeller in an air conditioner rotates to draw in air, and a bearing is required on its shaft. When installing the bearing, the impeller is typically placed directly on the impeller, with the bearing sleeve mounted on the top of the impeller shaft. A pressure head is then used to press the bearing down along the impeller shaft to the desired position. However, due to the fragile structure of the bearing and the high pressure from the pressure head, the pressure often damages the bearing during this process, causing the impeller motor to rotate and produce unusual noise, affecting the air conditioner's operation.

[0003] Therefore, how to reduce the damage of the wind wheel bearings during the assembly process has become an urgent problem to be solved in this field. Utility Model Content

[0004] The main purpose of the utility model is to provide a wind wheel bearing assembly device, aiming to reduce the damage of the wind wheel bearing during the assembly process.

[0005] To achieve the above-mentioned purpose, the wind wheel bearing assembly equipment proposed in the present invention includes a mounting seat, a positioning assembly, a buffer assembly and a press-fitting assembly; the positioning assembly includes a positioning platform arranged on the mounting seat, and the upper end surface of the positioning platform is provided with a positioning groove, and the positioning groove is used to adapt to the shape of the wind wheel to be assembled, so that the wind wheel to be assembled is placed with the wind wheel shaft facing upward; the buffer assembly is arranged between the positioning platform and the mounting seat, so that the positioning platform can float in the up and down directions under external force; the press-fitting assembly includes a press-fitting part arranged above the positioning platform, and the press-fitting part is movably installed to the mounting seat in the up and down directions, and the press-fitting part is used to press the bearing onto the wind wheel shaft of the wind wheel in the positioning groove.

[0006] In one embodiment, the buffer assembly includes a first elastic member, and the first elastic member is disposed between the positioning platform and the mounting seat.

[0007] In one embodiment, the positioning assembly further includes a limit member and a connecting member; the limit member is arranged on the mounting seat, the limit member has an accommodating cavity, and the upper end of the limit member is provided with an opening connected to the accommodating cavity; the connecting member extends in the up and down directions, the lower end of the connecting member is in the accommodating cavity and can move in the up and down directions, and the upper end of the connecting member extends out of the opening to be fixedly connected to the positioning platform; the first elastic member is arranged in the accommodating cavity and is against a part of the connecting member, so that the positioning platform can be driven by external force to drive the connecting member to move and squeeze the first elastic member.

[0008] In one embodiment, the connecting member includes a connecting section and a limiting section arranged in sequence in the upper and lower directions, the diameter of the limiting section is smaller than the connecting section, the limiting section is located in the accommodating cavity, and the connecting section is connected to the positioning platform; the first elastic member includes a spring, the spring is sleeved on the outer surface of the connecting section, and the two ends of the spring in the upper and lower directions are respectively against the connecting section and the lower wall surface of the accommodating cavity.

[0009] In one embodiment, the accommodating cavity includes a first cavity segment and a second cavity segment whose cross-sectional areas increase successively from top to bottom, so as to form a downward-facing limiting surface at the connection between the first cavity segment and the second cavity segment; the connecting segment also includes two extension segments whose diameters increase successively from top to bottom, so as to form an upward-facing mating surface at the connection between the two extension segments, one of the extension segments is located in the accommodating cavity and the other extension segment is connected to the positioning platform, and during the movement of the connecting segment, the mating surface can be offset against the limiting surface.

[0010] In one embodiment, the limiting member includes a cover shell and a base, the base is fixed on the mounting seat, the cover shell is arranged above the base to form a receiving cavity together with the base, and an opening is set at the upper end of the cover shell.

[0011] In one embodiment, the positioning platform is detachably connected to the connecting member.

[0012] In one embodiment, a plurality of mounting grooves are recessed along the circumference of the limit member on the inner wall of the opening, and the groove openings of the mounting grooves are gradually reduced toward the center of the opening; the wind wheel bearing assembly device also includes an elastic component, and the elastic component includes a plurality of second elastic members and a plurality of balls; the plurality of second elastic members are respectively arranged in a plurality of mounting grooves, and one side of each ball extends into the corresponding mounting groove to abut against the corresponding second elastic member, and the other side protrudes from the groove opening of the mounting groove and abuts against the side surface of the connecting member.

[0013] In one embodiment, the press-fitting portion includes a main body and a limit block; the main body is movably installed along the up and down directions, and the main body forms a press-fitting channel extending along the up and down directions, and the lower end of the press-fitting channel is open for allowing the wind wheel shaft to extend into during the downward pressing of the main body; the limit block is arranged in the press-fitting channel, and the limit block is used to abut against the end of the wind wheel shaft during the movement of the press-fitting portion.

[0014] In one embodiment, the wind wheel bearing assembly equipment further comprises a hand press, wherein the base of the hand press forms a mounting seat, and the pressing head of the hand press forms a press-fitting portion.

[0015] The technical solution of the present invention is to place the wind wheel by using a positioning platform with a positioning groove. When placing the wind wheel, the wind wheel shaft is placed upward, and the pressing part located above the positioning platform presses down the bearing sleeved on the wind wheel shaft. During the pressing process, the positioning platform and the wind wheel placed thereon move downward under the action of the pressing part. During the downward movement of the positioning platform, the buffer assembly provides a gradual buffering force for the positioning platform, absorbs part of the impact energy, thereby protecting the bearing from excessive stress, thereby reducing bearing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 the structures shown in these drawings without paying any creative work.

[0017] Figure 1 This is a structural schematic diagram of an embodiment of a wind wheel bearing assembly device provided by the present invention;

[0018] Figure 2 for Figure 1 A side view schematic diagram of

[0019] Figure 3 middle Figure 2 Schematic diagram of the cross section of the wind wheel bearing assembly equipment along AA;

[0020] Figure 4 for Figure 2 Schematic diagram of the cross section of the middle limiter along AA;

[0021] Figure 5 for Figure 2 Schematic diagram of the coordination between the elastic component and the connector.

[0022] Description of Figure Numbers:

[0023] 100. Wind wheel bearing assembly equipment; 1. Mounting seat; 2. Positioning assembly; 21. Positioning platform; 211. Positioning groove; 22. Limiting member; 221. Accommodating cavity; 2211. First cavity section; 2212. Second cavity section; 222. Opening; 2221. Mounting groove; 22A. Base; 22B. Cover; 23. Connecting member; 231. Connecting section; 2311. First extension section; 2312. Second extension section; 232. Limiting section; 3. Buffering assembly; 31. First elastic member; 4. Press-fitting assembly; 41. Press-fitting portion; 41A. Press-fitting channel; 41B. Limiting block; 5. Elastic assembly; 51. Second elastic member; 52. Ball bearing; 6. Hand press.

[0024] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] When installing bearings, the bearing is first placed on the top of the rotor shaft. The rotor is then placed directly on the rotor shaft, the bearing is then placed on the top of the rotor shaft. A hand press is then used to press the bearing down along the rotor shaft to the desired position. However, due to the fragile structure of the bearing and the high pressure from the pressure head, the pressure head often damages the bearing during the downward pressure process, causing the rotor motor to rotate and produce abnormal noise, affecting the operation of the air conditioner.

[0029] Based on this, the present invention proposes a wind wheel bearing assembly device 100. Figures 1 to 3In one embodiment of the present utility model, the wind wheel bearing assembly equipment 100 includes a mounting seat 1, a positioning component 2, a buffer component 3 and a press-fitting component 4; the positioning component 2 includes a positioning platform 21 arranged on the mounting seat 1, and the upper end surface of the positioning platform 21 is provided with a positioning groove 211, and the positioning groove 211 is used to adapt to the shape of the wind wheel to be assembled, so that the wind wheel to be assembled is placed with the wind wheel axis facing upward; the buffer component 3 is arranged between the positioning platform 21 and the mounting seat 1, so that the positioning platform 21 can float in the up and down directions under external force; the press-fitting component 4 includes a press-fitting part 41 arranged above the positioning platform 21, and the press-fitting part 41 is movably installed to the mounting seat 1 in the up and down direction, and the press-fitting part 41 is used to press the bearing on the wind wheel axis of the wind wheel in the positioning groove 211.

[0030] The technical solution of the present invention is to place the wind wheel by using a positioning platform 21 with a positioning groove 211. When placing the wind wheel, the wind wheel shaft is placed upward, and the pressing part 41 located above the positioning platform 21 presses down the bearing sleeved on the wind wheel shaft. During the pressing process, the positioning platform 21 and the wind wheel placed thereon move downward under the action of the pressing part 41. During the downward movement of the positioning platform 21, the buffer component 3 provides a gradual buffering force for the positioning platform 21, absorbs part of the impact energy, thereby protecting the bearing from excessive stress, thereby reducing bearing damage.

[0031] The press-fitting assembly 4 can be driven manually, or by a cylinder or motor. In one embodiment of the present invention, the press-fitting assembly 4 further includes a support column, a mounting portion, and a drive device. The support column is mounted on the mounting seat 1 and extends vertically. The mounting portion is mounted on the support column and extends horizontally to mount the press-fitting portion 41 and align the press-fitting portion 41 with the positioning platform 21. The drive device drives the press-fitting portion 41. The drive device can be driven by a cylinder or a motor. In another embodiment of the present invention, the wind wheel bearing assembly device 100 further includes a hand press 6. The base of the hand press 6 forms the mounting seat 1, and the pressure head of the hand press 6 forms the press-fitting portion 41.

[0032] Furthermore, in order to maintain the depth of the bearing pressed down relative to the rotor shaft, in one embodiment of the present invention, the press-fitting portion 41 includes a main body and a limit block 41B; the main body is movably installed in the up-down direction, and the main body is formed with a press-fitting channel 41A extending in the up-down direction, and the lower end of the press-fitting channel 41A is open, for allowing the rotor shaft to extend into during the pressing process of the main body; the limit block 41B is arranged in the press-fitting channel 41A, and the limit block 41B is used to abut against the end of the rotor shaft during the movement of the press-fitting portion 41. During the pressing process of the press-fitting portion 41, the rotor shaft penetrates into the press-fitting channel 41A, and the bearing mounted on the rotor shaft abuts against the main body. The main body pushes the bearing downward until the rotor shaft abuts against the limit block 41B, thereby controlling the depth of the bearing pressed down relative to the rotor shaft.

[0033] Moreover, the wall thickness of at least a portion of the press-fitting channel 41A is gradually reduced in the direction close to the positioning assembly 2. In this way, the strength of the press-fitting portion 41 can be ensured while the press-fitting position, that is, the position where the body and the bearing abut against each other, can be precisely controlled.

[0034] In addition, the end face size of the body close to the bearing is set so that the position where the body abuts the bearing is limited to the inner ring of the bearing to prevent damage to the bearing.

[0035] Moreover, in some assembly processes, a shell is provided on the back of the wind wheel (the side where the wind wheel shaft protrudes is the front). For precise positioning, a shell positioning groove 211 is recessed at the bottom of the positioning groove 211 to match the outer shape of the shell of the wind wheel to be assembled.

[0036] In one embodiment of the present invention, the buffer assembly 3 includes a first elastic member 31, which is disposed between the positioning platform 21 and the mounting base 1. During the downward pressing of the positioning platform 21, the first elastic member 31 buffers the spring, minimizing the force on the bearing so that the bearing is slowly pressed onto the rotor shaft.

[0037] Specifically, the first elastic member 31 includes one or more of a spring, a rubber pad, or other elastic components that can provide buffering.

[0038] In one embodiment of the present invention, the positioning assembly 2 further includes a limiting member 22 and a connecting member 23. The limiting member 22 is disposed on the mounting base 1 and has a receiving cavity 221. The upper end of the limiting member 22 is provided with an opening 222 connected to the receiving cavity 221. The connecting member 23 extends in the vertical direction, the lower end of the connecting member 23 is located in the receiving cavity 221 and is movable in the vertical direction. The upper end of the connecting member 23 extends out of the opening 222 to be fixedly connected to the positioning platform 21. The first elastic member 31 is disposed in the receiving cavity 221 and partially abuts against the connecting member 23, so that the positioning platform 21 can be driven by an external force to move the connecting member 23 and squeeze the first elastic member 31. This arrangement can limit the movement path of the positioning platform 21 to the vertical direction and restrict the position of the first elastic member 31, so that the positioning platform 21 can only move in the vertical direction and reduce the displacement of the positioning platform 21 in the horizontal direction.

[0039] Specifically, in one embodiment of the present invention, the limiting member 22 includes a cover shell 22B and a base 22A. The base 22A is fixed on the mounting base 1. The cover shell 22B is arranged above the base 22A to form a accommodating cavity 221 together with the base 22A. An opening 222 is set at the upper end of the cover shell 22B.

[0040] Moreover, in one embodiment of the present invention, the positioning platform 21 and the connecting member 23 are detachably connected, and positioning platforms 21 of different sizes can be replaced when assembling bearings for wind wheels of different specifications, thereby effectively reducing costs and improving assembly efficiency.

[0041] Specifically, a threaded hole is provided on the upper end surface of the connecting member 23 , a screw is provided in the threaded hole, and the screw passes through the positioning platform 21 and is installed in the threaded hole to detachably connect the positioning platform 21 and the connecting member 23 .

[0042] In addition, there are various ways in which the first elastic member 31 and the connecting member 23 can abut against each other. In one embodiment, the first elastic member 31 abuts against the lower end surface of the connecting member 23. The first elastic member 31, the connecting member 23, and the positioning platform 21 are sequentially arranged on the mounting base 1 from bottom to top. The opening 222 of the accommodating cavity 221 has a limiting effect on the connecting member 23. In another embodiment, one end of the connecting member 23 is fixedly connected to the positioning platform 21, and the other end passes through the accommodating cavity 221 and is movably arranged on the mounting base 1 in an upward and downward direction. The connecting member 23 is configured to have a variable size along its length and has a downward-facing stepped surface that abuts against the first elastic member.

[0043] In one embodiment of the present invention, the connector 23 includes a connecting section 231 and a limiting section 232, arranged in sequence in the vertical direction. The limiting section 232 has a smaller diameter than the connecting section 231 and is located within the accommodating cavity 221. The connecting section 231 is connected to the positioning platform 21. The first elastic member 31 includes a spring, which is sleeved on the outer surface of the connecting section 231, with its ends in the vertical direction respectively abutting against the connecting section 231 and the lower wall of the accommodating cavity 221. This arrangement stabilizes the movement of the connector 23 to a straight line in the vertical direction, reducing misalignment and tilting caused by the bearing and the press-fit portion 41.

[0044] Furthermore, the connecting member 23 is movably mounted on the mounting seat 1 in the connecting section 231 via a linear bearing.

[0045] See also Figure 3 and Figure 4 In one embodiment of the present invention, the accommodating cavity 221 includes a first cavity section 2211 and a second cavity section 2212, whose cross-sectional areas increase from top to bottom, forming a downward-facing limiting surface at the connection between the first cavity section 2211 and the second cavity section 2212. The connecting section 231 also includes a first extension section 2311 and a second extension section 2312, whose diameters increase from top to bottom, forming an upward-facing mating surface at the connection between the two extension sections. One extension section is located within the accommodating cavity 221, and the other is connected to the positioning platform 21. During the movement of the connecting section 231, the mating surface can abut against the limiting surface. This arrangement limits the highest position of the positioning seat's movable travel, ensuring that the positioning seat still has stable buffering capacity when at its highest position.

[0046] Specifically, the connecting member 23 is a rod-shaped member with a varying diameter, which comprises a first extension section 2311 , a second extension section 2312 , and a limiting section 232 from top to bottom, wherein the diameter of the second extension section 2312 is greater than the diameters of the first extension section 2311 and the limiting section 232 .

[0047] See also Figure 4 and Figure 5 , Figure 5 for Figure 2 A cross-sectional view of the middle limit member 22 and the connecting member 23 along BB. In one embodiment of the present invention, a plurality of mounting grooves 2221 are recessed along the circumference of the limit member 22 on the inner wall of the opening 222, and the notch of the mounting groove 2221 is gradually reduced toward the center direction of the opening 222; the wind wheel bearing assembly device 100 also includes an elastic component 5, the elastic component 5 includes a plurality of second elastic members 51 and a plurality of balls 52; the plurality of second elastic members 51 are respectively arranged in a plurality of mounting grooves 2221; one side of each ball 52 extends into the corresponding mounting groove 2221 to abut against the corresponding second elastic member 51, and the other side protrudes from the notch of the mounting groove 2221 and abuts against the side surface of the connecting member 23. When the positioning platform 211 tilts to one side, the connecting member 23 also tilts to that side, and the compression of the second elastic member 51 on that side increases, while the compression of the second elastic member 51 on the other side decreases, so that the multiple elastic components 5 as a whole apply elastic force to the connecting member 23 toward that side to maintain the center position of the connecting member 23 and the positioning platform 211. In this way, the connecting member 23 is placed in the center of the opening 222 through multiple mounting grooves 2221 and corresponding elastic components 5, preventing the connecting member 23 and the positioning platform 211 from offsetting and reducing bearing damage.

[0048] Specifically, the second elastic member 51 may be a compression spring or other elastic member that can achieve a compression function.

[0049] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A wind wheel bearing assembly device, characterized in that: include: Mounting seat; A positioning assembly, comprising a positioning platform provided on the mounting seat, wherein the upper end surface of the positioning platform is provided with a positioning groove, wherein the positioning groove is adapted to fit the outer shape of the wind wheel to be assembled so that the wind wheel to be assembled is arranged with the wind wheel axis facing upward; a buffer assembly, disposed between the positioning platform and the mounting seat, so as to enable the positioning platform to float in an up-and-down direction under external force; as well as, The press-fitting assembly includes a press-fitting portion arranged above the positioning platform, the press-fitting portion is movably installed to the mounting seat in the up-down direction, and the press-fitting portion is used to press the bearing onto the wind wheel shaft of the wind wheel in the positioning groove.

2. The wind wheel bearing assembly equipment according to claim 1, characterized in that: The buffer assembly includes a first elastic member, which is arranged between the positioning platform and the mounting seat.

3. The wind wheel bearing assembly equipment according to claim 2, characterized in that: The positioning component also includes: a limiting member disposed on the mounting seat, the limiting member having an accommodating cavity, an upper end of the limiting member being provided with an opening communicating with the accommodating cavity; and a connecting member extending in the up-down direction, wherein the lower end of the connecting member is located in the accommodating cavity and is movable in the up-down direction, and the upper end of the connecting member extends out of the opening to be fixedly connected to the positioning platform; The first elastic member is disposed in the accommodating cavity and abuts against a portion of the connecting member, so that the positioning platform can drive the connecting member to move and squeeze the first elastic member under external force.

4. The wind wheel bearing assembly equipment according to claim 3, characterized in that: The connecting member includes a connecting section and a limiting section sequentially arranged in the upper and lower directions, the limiting section has a smaller diameter than the connecting section, the limiting section is located in the accommodating cavity, and the connecting section is connected to the positioning platform; The first elastic member includes a spring, which is sleeved on the outer surface of the limiting section, and the two ends of the spring in the upper and lower directions respectively abut against the connecting section and the lower wall of the accommodating cavity.

5. The wind wheel bearing assembly equipment according to claim 4, characterized in that: The accommodating cavity comprises a first cavity section and a second cavity section with increasing cross-sectional areas from top to bottom, so as to form a downwardly disposed limiting surface at the connection between the first cavity section and the second cavity section; The connecting section also includes two extension sections whose diameters increase successively from top to bottom, so as to form an upwardly directed mating surface at the connection of the two extension sections, wherein one of the extension sections is located in the accommodating cavity and the other extension section is connected to the positioning platform. During the movement of the connecting section, the mating surface can be offset against the limiting surface.

6. The wind wheel bearing assembly equipment according to any one of claims 3 or 5, characterized in that: The limiting member includes a cover shell and a base, the base is fixed on the mounting seat, the cover shell is arranged above the base to form the accommodating cavity together with the base, and the opening is provided at the upper end of the cover shell.

7. The wind wheel bearing assembly equipment according to claim 3, characterized in that: The positioning platform is detachably connected to the connecting piece.

8. The wind wheel bearing assembly equipment according to claim 3, characterized in that: The inner wall of the opening is provided with a plurality of mounting grooves along the circumference of the limiting member, and the notches of the mounting grooves are gradually reduced toward the center of the opening; The wind wheel bearing assembly device further includes an elastic component, and the elastic component includes: a plurality of second elastic members, respectively disposed in the plurality of mounting grooves; and A plurality of balls, one side of each ball extends into the corresponding installation groove to abut against the corresponding second elastic member, and the other side protrudes from the notch of the installation groove and abuts against the side surface of the connecting member.

9. The wind wheel bearing assembly equipment according to claim 1, characterized in that: The press-fitting portion comprises: The main body is movably installed in the vertical direction, and the main body is formed with a press-fitting channel extending in the vertical direction, and the lower end of the press-fitting channel is open and is used for the wind wheel shaft to extend into during the downward pressing process of the main body; and A limit block is arranged in the press-fitting channel, and the limit block is used to abut against the end of the wind wheel shaft during the movement of the press-fitting part.

10. The wind wheel bearing assembly equipment according to claim 1, characterized in that: The wind wheel bearing assembly equipment further includes a hand press, wherein the base of the hand press forms the mounting seat, and the pressing head of the hand press forms the press-fitting portion.

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