A mechanical equipment maintenance device

Abstract

The present invention relates to the technical field of maintenance tools, and specifically relates to a mechanical equipment maintenance device, including an upper disc body. At least three groups of brackets are annularly and equidistantly distributed on the annular side surface of the upper disc body. The brackets are detachably connected and fixed to the upper disc body. A stretching member is arranged on the lower side of the end of the bracket away from the upper disc body. The lower end of the stretching member is fixedly connected with a head. A threaded sleeve is arranged in the middle of the upper end surface of the upper disc body. An adjusting component is arranged between the threaded sleeve and the upper disc body. A screw rod is helically driven and connected inside the threaded sleeve. The upper end and the lower end of the screw rod both extend to the outside of the threaded sleeve. The puller structure designed by the present invention can easily complete the disassembly work when dealing with bearings of different types of installations, without a cumbersome adjustment process. Compared with the bearing puller structure in the prior art, it has a wide range of applications and effectively improves the working efficiency of bearing disassembly.

Description

Technical Field

[0001] The present invention relates to the technical field of maintenance tools, and more particularly to a mechanical equipment maintenance device. Background Art

[0002] The three-jaw puller is a tool often used in mechanical maintenance. It is mainly used to axially remove a damaged bearing from a shaft. It mainly consists of a rotating handle, a screw rod and pull claws. There are two-claw and three-claw types. The main dimensions are the length of the pull claws, the spacing between the pull claws, and the length of the screw rod to adapt to bearings with different diameters and different axial installation depths. When in use, the tip of the screw rod is positioned in the tip hole at the end of the shaft to adjust the position of the pull claws so that the pull claws hook on the outer ring of the bearing, and the rotating handle is rotated to drive the bearing to move axially outward to remove it.

[0003] In the prior art, a yacht propeller disassembly puller (Publication No.: CN207629955U) is disclosed. The above patent effectively protects the propeller blades and the disassembly claws by using a buffer layer made of rubber material, so as to avoid direct contact between the disassembly claws and the propeller blades during rotation, resulting in excessive wear of the disassembly claws or the propeller blades and damage to the disassembly claws or the propeller blades, effectively avoiding unnecessary economic losses and having high safety.

[0004] In the actual use process of this yacht propeller disassembly puller, the subsequent bearing disassembly work is mainly achieved by the tip of the disassembly claw being engaged in the gap between the bearing and the external installation equipment. However, in fact, when some bearings are installed, the bearings are installed in an embedded manner and fixed in the internal bearing sleeve of the equipment. The bearing and the outer surface of the equipment are in the same plane and there is no installation gap. This device cannot adapt to the disassembly of such bearings, so the scope of use is low and it is difficult to meet the disassembly and maintenance work of users for bearings in different installation environments.

[0005] Therefore, a mechanical equipment maintenance device is proposed. Summary of the Invention

[0006] The object of the present invention is to provide a mechanical equipment maintenance device to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: A mechanical equipment maintenance device, including an upper disk body, at least three groups of brackets are annularly and equidistantly distributed on the annular side surface of the upper disk body, the brackets are detachably connected and fixed to the upper disk body, a stretching member is arranged on the lower side of the end of the bracket far from the upper disk body, the lower end of the stretching member is fixedly connected with a head, a threaded sleeve is arranged in the middle of the upper end surface of the upper disk body, an adjusting assembly is arranged between the threaded sleeve and the upper disk body, a screw rod is helically driven and connected inside the threaded sleeve, the upper end and the lower end of the screw rod both extend to the outside of the threaded sleeve, an internal hexagonal hole is opened at the upper end of the screw rod, the lower end of the screw rod is rotationally connected with a pressing disk through a rotating shaft, a lower disk body is fixedly connected to the position of the outer surface of the threaded sleeve close to the lower end, a force-bearing auxiliary assembly is arranged between the lower disk body and the upper disk body, the number of the force-bearing auxiliary assemblies is three groups, and they correspond to the three brackets one by one.

[0008] Preferably, the adjusting assembly includes an outer sleeve fixedly connected to the center of the upper end surface of the upper disk body, the threaded sleeve penetrates through the outer sleeve and the upper disk body, and the three are movably connected. Symmetrical sliding grooves are opened on the outer surface of the threaded sleeve, sliders are slidably connected inside the sliding grooves, the sliders are fixed to the inner wall of the outer sleeve, the sliders match the sliding grooves, and the inner wall of the outer sleeve fits the outer wall of the threaded sleeve.

[0009] Preferably, the sliding groove is designed in an S-shaped structure, and a semi-circular clamping groove matching the slider is opened at the bending point of the S-shaped sliding groove, and the heights of the bending points of the S-shaped structure gradually decrease.

[0010] Preferably, the stretching member includes a stretching cylinder, the lower end of the stretching cylinder is movably connected with an extension rod, the upper end of the stretching cylinder is fixedly connected with a hinge ball end, a spherical groove is opened at the corresponding position of the lower end surface of the bracket and the hinge ball end, the stretching cylinder is embedded and connected inside the spherical groove through the hinge ball end, and the two are rotationally connected. The upper end of the extension rod extends into the stretching cylinder, and the two match and cannot be separated. The lower end of the extension rod is fixedly connected with a head.

[0011] Preferably, the head is composed of a circular flat alloy metal, its annular side surface is fixed to the extension rod, and a number of tooth-shaped metal strips are equidistantly distributed on the annular side surface of the head.

[0012] Preferably, a buffer assembly is arranged between the stretching cylinder and the extension rod. When the buffer assembly displaces, the gas pressure buffers the displacement of the stretching cylinder and the extension rod.

[0013] Preferably, the buffer assembly includes a connecting rod fixedly connected to one end of an extension rod inside the stretching cylinder. An air chamber is formed between the upper end of the extension rod and the stretching cylinder. The upper end of the connecting rod is fixedly connected to a piston. The piston is in close fit with the inner wall of the air chamber. The lower end of the stretching cylinder is adhesively fixed with a sealing ring, and the sealing ring is sleeved outside the extension rod.

[0014] Preferably, the force-assisted assembly includes an air pipe arranged outside the stretching cylinder. An air passage is opened inside the bracket. The lower end of the air pipe is communicated with the air chamber through an interface, and the upper end is also communicated with the air passage through an interface. The lower end surface of the upper disc body is fixedly connected with a pressure cylinder.

[0015] Preferably, a telescopic rod is arranged on the lower end surface of the pressure cylinder. The upper end of the telescopic rod extends into the pressure cylinder, and one end of the telescopic rod located inside the pressure cylinder is also fixedly connected with a piston. The lower end of the telescopic rod is adhesively connected with a rubber block, and the air passage extends into the upper disc body and is communicated with the inside of the pressure cylinder.

[0016] Preferably, the air pipe is made of hard rubber material and is spirally distributed. The telescopic rod and the pressure cylinder are made of stainless steel metal.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. The puller structure designed by the present invention can easily complete the disassembly work when dealing with bearings installed in different ways, without a cumbersome adjustment process. Compared with the bearing puller structure in the prior art, it has a wide application range and effectively improves the work efficiency of bearing disassembly;

[0019] 2. By designing a buffer assembly in cooperation with a stretching member, the present invention can effectively buffer the stretching force generated instantaneously during the pulling of the bearing by the stretching member, avoiding damage to the stretching member caused by excessive stress during stretching and further improving the service life of the stretching member;

[0020] 3. By designing an adjustment assembly, the present invention can further adjust the gap between the stretching member and the bearing to be disassembled, so as to meet the disassembly conditions. This adjustment method is simple and convenient. Compared with the cumbersome adjustment methods such as screw rotation in the prior art, the work efficiency is greatly improved;

[0021] 4. By designing a force buffer assembly, the present invention can further share the main stress points between the slider and the chute in the adjustment assembly, reducing the probability of fracture damage or excessive wear at this place during the long-term use of the device. Description of the Drawings

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is the overall structural view of the present invention;

[0024] Figure 2 It is the front view of the overall structure of the present invention;

[0025] Figure 3 It is the bottom view of the overall structure of the present invention;

[0026] Figure 4 It is the sectional view of the overall structure of the present invention;

[0027] Figure 5 It is of the present invention Figure 4 The enlarged schematic view at position B;

[0028] Figure 6 It is of the present invention Figure 4 The enlarged schematic view at position A;

[0029] Figure 7 It is the structural view of the internal thread sleeve and the chute of the present invention;

[0030] Figure 8 It is the side view of the end head of the present invention.

[0031] Explanation of reference numerals:

[0032] 1. Upper disk body; 11. Bracket; 12. Lower disk body; 13. Screw rod; 131. Extrusion disk; 14. Internal thread sleeve;

[0033] 2. Adjusting assembly; 21. Outer sleeve; 22. Slide block; 23. Chute;

[0034] 3. Force-bearing auxiliary assembly; 31. Air pipe; 32. Air passage; 33. Pressure cylinder; 34. Expansion rod;

[0035] 4. Tensile member; 41. Extension rod; 42. Tensile cylinder; 43. Hinge ball end;

[0036] 5. End head;

[0037] 6. Buffer assembly; 61. Connecting rod; 62. Air plug; 63. Air cavity; 64. Sealing ring. Specific embodiments

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figures 1 to 8 , the present invention provides a technical solution:

[0040] A mechanical equipment maintenance device includes an upper disc body 1. At least three groups of brackets 11 are annularly and equidistantly distributed on the annular side surface of the upper disc body 1. The brackets 11 are fixedly connected to the upper disc body 1 by screws. A stretching member 4 is provided on the lower side of one end of the bracket 11 away from the upper disc body 1. The lower end of the stretching member 4 is fixedly connected with a head 5. An internal thread sleeve 14 is provided in the middle of the upper end surface of the upper disc body 1. An adjusting assembly 2 is provided between the internal thread sleeve 14 and the upper disc body 1. A screw rod 13 is in spiral transmission connection inside the internal thread sleeve 14. The upper end and the lower end of the screw rod 13 both extend outside the internal thread sleeve 14. An internal hexagonal hole is opened at the upper end of the screw rod 13. The lower end of the screw rod 13 is rotatably connected with a pressing disc 131 through a rotating shaft. A lower disc body 12 is fixedly connected to a position near the lower end of the outer surface of the internal thread sleeve 14. A force-bearing auxiliary assembly 3 is provided between the lower disc body 12 and the upper disc body 1. The number of the force-bearing auxiliary assemblies 3 is three, and they correspond to the three brackets 11 one by one.

[0041] By adopting the above technical solution, the puller structure designed by the present invention can easily complete the disassembly work when dealing with bearings of different types of installations, without a cumbersome adjustment process. Compared with the bearing puller structures in the prior art, it has a wide range of applications and effectively improves the working efficiency of bearing disassembly.

[0042] As an embodiment of the present invention, as Figure 2 shown in Figure 4 , Figure 7 and Figure 6 , the adjusting assembly 2 includes an outer sleeve 21 fixedly connected to the center of the upper end surface of the upper disc body 1. The internal thread sleeve 14 penetrates through the outer sleeve 21 and the upper disc body 1, and the three are movably connected. Symmetrical sliding grooves 23 are opened on the outer surface of the internal thread sleeve 14. Sliders 22 are slidably connected inside the sliding grooves 23. The sliders 22 are fixed to the inner wall of the outer sleeve 21. The sliders 22 and the sliding grooves 23 match and fit with each other, and the inner wall of the outer sleeve 21 is attached to the outer wall of the internal thread sleeve 14. The sliding grooves 23 are designed in an S-shaped structure. A semi-circular card slot matching the slider 22 is opened at the bending point of the S-shaped sliding groove 23. The heights of the bending points of the S-shaped sliding groove 23 decrease in turn.

[0043] By adopting the above technical solution, during operation, since the heights of the rotating shafts on which the bearings are installed are different, it is necessary to adjust the appropriate positions of the stretching member 4 and the bearings so as to disassemble the bearings through the end 5. Therefore, when it is necessary to adjust the distance between the stretching member 4 and the bearings, the user can rotate the upper disc body 1 and the outer sleeve 21 to make the slider 22 fixed in the outer sleeve 21 located at an appropriate position in the S-shaped chute 23. Since the heights of the bending points of the S-shaped chute 23 decrease in sequence, the appropriate position of the upper disc body 1 on the internal thread sleeve 14 can be adjusted through the positions of the slider 22 at different bending points in the chute 23, thereby adjusting the distance between the stretching member 4 and the bearing to be disassembled, so as to facilitate the subsequent disassembly of the bearing through the stretching member 4 and the end 5. By designing the adjusting assembly 2, the present invention can further adjust the gap between the stretching member 4 and the bearing to be disassembled, so as to meet the disassembly conditions. This adjusting method is simple and convenient, and greatly improves the working efficiency compared with the cumbersome adjusting methods such as screw rotation in the prior art.

[0044] As an embodiment of the present invention, as Figure 1 shown in Figure 4 , the stretching member 4 includes a stretching cylinder 42. The lower end of the stretching cylinder 42 is movably connected with an extension rod 41. The upper end of the stretching cylinder 42 is fixedly connected with a hinge ball end 43. A spherical groove is formed at the corresponding position of the lower end surface of the bracket 11 and the hinge ball end 43. The stretching cylinder 42 is embedded and connected inside the spherical groove through the hinge ball end 43, and the two are rotatably connected. The upper end of the extension rod 41 extends into the stretching cylinder 42, and the two are matched with each other and cannot be separated. The lower end of the extension rod 41 is fixedly connected with an end 5.

[0045] By adopting the above technical solution, during operation, first, after adjusting the distance between the stretching member 4 and the bearing to be disassembled through the adjusting assembly 2, the user places the upper disc body 1 on the upper side of the rotating shaft where the bearing is installed. Then, the lower end of the screw 13 presses against the pressing disc 131 and abuts against the upper end of the rotating shaft. Then, since the upper end of the stretching member 4 is rotatably connected to the bracket 11 through the hinge ball end 43 by 360 degrees, the expansion angles of the three stretching members 4 are adjusted, and the disc-shaped end 5 at the lower end of the stretching member 4 is inserted between the outer ring and the inner ring of the bearing. Then, the user holds the stretching member 4 and rotates it, rotating the end 5 by 90 degrees from its original position, and uses the diameter length of the end 5 to abut against and fix the outer ring and the inner ring. Then, at this time, the user can drive the screw 13 to rotate through an external power tool or manually using a wrench. At this time, the screw 13 rotates through the pressing disc 131, and the internal thread sleeve 14 that is in screw drive connection with the screw 13 then moves smoothly upward under the screw drive connection, thereby stretching the bearing upward through the upper disc body 1, the bracket 11, and the stretching member 4, so that the bearing is separated from the outer surface of the installed bearing, realizing the disassembly of the bearing. The way that the stretching member 4 and the bracket 11 are rotatably connected through the hinge ball end 43 enables the device to adapt to the disassembly of bearings of different sizes within a certain range, and by changing the angle between the stretching member 4 and the bracket 11, the disassembly of bearings of different sizes can be dealt with.

[0046] As an embodiment of the present invention, as Figure 1 shown in Figure 8 the end 5 is composed of a circular flat alloy metal, its annular side is fixed to the extension rod 41, and a plurality of tooth-shaped metal strips are equidistantly distributed on the annular side of the end 5.

[0047] By adopting the above technical solution, by designing tooth-shaped metal strips on the annular side of the end 5, the contact area between the end 5 and the inner ring and the outer ring is increased, changing from the original point contact to the surface contact of the tooth-shaped metal strips, increasing the contact area and improving the disassembly stability.

[0048] As an embodiment of the present invention, as Figure 4 shown in Figure 5 a buffer assembly 6 is provided between the stretching cylinder 42 and the extension rod 41. When the buffer assembly 6 displaces, the gas pressure buffers the active displacement of the stretching cylinder 42 and the extension rod 41. The buffer assembly 6 includes a connecting rod 61 fixedly connected to one end of the extension rod 41 inside the stretching cylinder 42. An air chamber 63 is formed between the upper end of the extension rod 41 and the stretching cylinder 42. The upper end of the connecting rod 61 is fixedly connected with a piston 62, and the piston 62 is in close fit with the inner wall of the air chamber 63. A sealing ring 64 is adhesively fixed to the lower end of the stretching cylinder 42, and the sealing ring 64 is sleeved outside the extension rod 41.

[0049] By adopting the above technical solution, based on the above embodiment, during the process of the stretching member 4 pulling up the bearing for disassembly, in order to avoid damage to the connection due to excessive instantaneous tensile stress between the stretching member 4 and the bracket 11 and between the end 5 and the bearing, or fracture due to long-term use during the instant of stretching and disassembling the bearing, during the process of the stretching member 4 extracting and disassembling the bearing, first, the connecting rod 61 will carry the air plug 62 and displace downward in the air chamber 63. Since the air chamber 63 is tightly connected to the air plug 62, during the downward displacement of the air plug 62, the gas pressures on the upper and lower sides of the air plug 62 are changed. The downward displacement speed of the connecting rod 61 is buffered by the air pressure in the air chamber 63, thereby further realizing the buffering of the stretching displacement speed of the extension rod 41 of the stretching member 4 and reducing the probability of damage to the stretching member 4.

[0050] As an embodiment of the present invention, as Figure 4 shown in connection with Figure 5 and Figure 6 shown, the force-assisted component 3 includes an air pipe 31 disposed outside the stretching cylinder 42. An air passage 32 is formed inside the bracket 11. The lower end of the air pipe 31 is connected to the air chamber 63 through an interface, and the upper end is also connected to the air passage 32 through an interface. The lower end surface of the upper disc body 1 is fixedly connected with a pressure cylinder 33. A telescopic rod 34 is provided on the lower end surface of the pressure cylinder 33. The upper end of the telescopic rod 34 extends into the pressure cylinder 33, and one end of the telescopic rod 34 located inside the pressure cylinder 33 is also fixedly connected with an air plug 62. The lower end of the telescopic rod 34 is adhesively connected with a rubber block. The air passage 32 extends into the upper disc body 1 and is connected to the inside of the pressure cylinder 33.

[0051] By adopting the above technical solution, based on the above embodiment, during the downward movement of the connecting rod 61, the air plug 62 also moves downward. At this time, the gas on the lower side of the air plug 62 is compressed, conveyed to the inside of the air pipe 31 through the interface, and then conveyed to the inside of the pressure cylinder 33 through the air passage 32 connected to the air pipe 31. At this time, the air plug 62 inside the pressure cylinder 33 moves upward under the jacking of the gas, thereby controlling the upward extension of the telescopic rod 34. The upper end of the telescopic rod 34 abuts against the lower disc body 12. The purpose of this method is that since the screw 13 rotates, the internal thread sleeve 14 that is in screw transmission with the screw 13 moves upward, thereby carrying the upper disc body 1 upward. Since the upper disc body 1 is mainly connected through the outer sleeve 21, the slider 22, and the chute 23 in the adjustment assembly 2, and the connection point of the slider 22 and the chute 23 is the main stress point of the connection between the internal thread sleeve 14 and the upper disc body 1, and also the stress point for the subsequent stretching member 4 to stretch the bearing through the end 5. Therefore, in order to avoid excessive stress at the connection between the slider 22 and the chute 23 resulting in distortion or deformation, the stress sharing is realized by the extension of the telescopic rod 34 to abut against the lower disc body 12, so as to reduce the stress at the slider 22 and the chute 23, improve the service life of the device, and reduce the probability of damage.

[0052] As an embodiment of the present invention, as Figure 5 shown, the trachea 31 is made of hard rubber material and is distributed in a spiral shape, and the telescopic rod 34 and the pressure cylinder 33 are made of stainless steel metal.

[0053] By adopting the above technical solution, since the stretching member 4 needs to change according to the size of the bearing to be disassembled and the angle of the bracket 11, in order to enable the trachea 31 to adapt to the angle change of the stretching member 4 and continue to ensure the gas is transported to the acceptance auxiliary assembly, the hard rubber material trachea 31 and the trachea 31 with a spiral structure distribution are adapted.

[0054] Working principle: During operation, since the heights of the rotating shafts on which the bearings are installed are different, it is necessary to adjust the stretching member 4 to an appropriate position with respect to the bearing in order to disassemble the bearing through the end 5. Therefore, when it is necessary to adjust the distance between the stretching member 4 and the bearing, the user can rotate the upper disc body 1 and the outer sleeve 21 to make the slider 22 fixed in the outer sleeve 21 located at an appropriate position in the S-shaped chute 23. Since the heights of the bending points of the S-shaped chute 23 decrease in sequence, the upper disc body 1 can be adjusted to an appropriate position on the internal thread sleeve 14 through the position of the slider 22 at different bending points in the chute 23, thereby adjusting the distance between the stretching member 4 and the bearing to be disassembled, so as to facilitate the subsequent disassembly of the bearing through the stretching member 4 and the end 5;

[0055] After adjusting the distance between the stretching member 4 and the bearing to be disassembled through the adjusting assembly 2, the user places the upper disc body 1 on the upper side of the rotating shaft on which the bearing is installed, and then the lower end of the screw 13 presses the pressing disc 131 against the upper end of the rotating shaft. Then, since the upper end of the stretching member 4 is rotatably connected to the bracket 11 through the hinge ball end 43 by 360 degrees, the expansion angles of the three stretching members 4 are adjusted, and the disc-shaped end 5 at the lower end of the stretching member 4 is inserted between the outer ring and the inner ring of the bearing. Then, the user holds the stretching member 4 and rotates it, rotating the end 5 by 90 degrees from its original position, and using the diameter length of the end 5 to abut against the fixed outer ring and inner ring. Then, the user can drive the screw 13 to rotate at this time through an external electric tool or manually using a wrench. At this time, the screw 13 rotates through the pressing disc 131, and the internal thread sleeve 14 that is in screw drive connection with the screw 13 smoothly moves upward under the action of the screw drive connection. Then, the bearing is pulled upward through the upper disc body 1, the bracket 11, and the stretching member 4, so that the bearing is separated from the outer surface of the installed bearing, realizing the disassembly of the bearing. The way that the stretching member 4 and the bracket 11 are rotatably connected through the hinge ball end 43 enables the device to adapt to the disassembly of bearings of different sizes within a certain range. By changing the angle between the stretching member 4 and the bracket 11, the disassembly of bearings of different sizes can be dealt with; by designing tooth-shaped metal strips on the circumferential side of the end 5, the contact area between the end 5 and the inner ring and the outer ring is increased, changing from the original point contact to the surface contact of the tooth-shaped metal strips, increasing the contact area and improving the disassembly stability;

[0056] In the process of pulling the bearing upwards for disassembly by the stretching member 4, in order to avoid excessive instantaneous tensile stress between the stretching member 4 and the bracket 11, as well as between the end head 5 and the bearing, which may cause damage to the connection or breakage due to long-term use, in the process of pulling the bearing out by the stretching member 4, the connecting rod 61 will first carry the air plug 62 to move downward in the air cavity 63. Since the air cavity 63 is tightly connected to the air plug 62, the gas pressure on the upper and lower sides of the air plug 62 is changed during the downward displacement of the air plug 62. The downward movement speed of the connecting rod 61 is buffered by the air pressure in the air cavity 63, thereby further achieving the buffering of the stretching displacement speed of the extension rod 41 of the stretching member 4 and reducing the probability of damage to the stretching member 4.

[0057] During the downward movement of the connecting rod 61, the gas plug 62 also moves downward. At this time, the gas on the lower side of the gas plug 62 is compressed and transported to the inside of the air pipe 31 through the interface, and then transported to the inside of the pressure cylinder 33 due to the air passage 32 connected by the air pipe 31. At this time, the gas plug 62 inside the pressure cylinder 33 moves upward under the lifting of the gas, thereby controlling the telescopic rod 34 to extend upward, and the upper end of the telescopic rod 34 reaches the lower plate 12. The purpose of this method is that due to the rotation of the screw 13, the internal threaded sleeve 14 spirally driven by the screw 13 moves upward, thereby carrying the upper plate 1 upward. Since the upper plate body 1 is mainly connected through the outer sleeve 21, the slider 22 and the slide groove 23 in the adjustment component 2, the connection point of the slider 22 and the slide groove 23 is the main stress point of the connection between the internal threaded sleeve 14 and the upper plate body 1, and is also the stress point of the subsequent stretching member 4 stretching the bearing through the end 5. Therefore, in order to avoid excessive force at the connection between the slider 22 and the slide groove 23, thereby causing distortion or deformation, the telescopic rod 34 is extended to the lower plate body 12 to achieve stress sharing, so as to reduce the force at the slider 22 and the slide groove 23, thereby increasing the service life of the device and reducing the probability of damage;

[0058] Since the stretching part 4 needs to change with the size of the bearing to be disassembled and the angle of the bracket 11, in order to make the air pipe 31 adapt to the change of the angle of the stretching part 4 and continue to ensure that the gas is delivered to the receiving auxiliary component, the hard rubber air pipe 31 and the air pipe 31 with a spiral structure distribution are adapted.

[0059] Finally, 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mechanical equipment maintenance device, including an upper disc body (1), Characterized in that: At least three groups of brackets (11) are annularly and equidistantly distributed on the annular side surface of the upper disc body (1). The brackets (11) are detachably connected and fixed to the upper disc body (1). A stretching member (4) is arranged on the lower side of one end of the bracket (11) far from the upper disc body (1). The lower end of the stretching member (4) is fixedly connected with an end head (5). In the middle of the upper end surface of the upper disc body (1), an internal thread sleeve (14) is arranged. An adjusting component (2) is arranged between the internal thread sleeve (14) and the upper disc body (1). A screw rod (13) is in spiral transmission connection inside the internal thread sleeve (14). The upper end and the lower end of the screw rod (13) both extend to the outside of the internal thread sleeve (14). An internal hexagonal hole is opened at the upper end of the screw rod (13). The lower end of the screw rod (13) is rotationally connected with a pressing disc (131) through a rotating shaft. A lower disc body (12) is fixedly connected to the outer surface of the internal thread sleeve (14) near the lower end. A force-bearing auxiliary component (3) is arranged between the lower disc body (12) and the upper disc body (1). The number of the force-bearing auxiliary components (3) is three groups, and they correspond to the three brackets (11) one by one; The stretching member (4) includes a stretching cylinder (42). The lower end of the stretching cylinder (42) is movably connected with an extension rod (41). The upper end of the extension rod (41) extends into the stretching cylinder (42), and the two are matched and cannot be separated. The lower end of the extension rod (41) is fixedly connected with an end head (5); A buffer component (6) is arranged between the stretching cylinder (42) and the extension rod (41). When the buffer component (6) displaces, gas pressure buffers the moving displacement of the stretching cylinder (42) and the extension rod (41); The buffer component (6) includes a connecting rod (61) fixedly connected to one end of the extension rod (41) inside the stretching cylinder (42). An air cavity (63) is formed between the upper end of the extension rod (41) and the stretching cylinder (42). The upper end of the connecting rod (61) is fixedly connected with a piston (62). The piston (62) is in close fit with the inner wall of the air cavity (63). A sealing ring (64) is fixedly connected by glue to the lower end of the stretching cylinder (42). The sealing ring (64) is sleeved outside the extension rod (41); The force-bearing auxiliary component (3) includes an air pipe (31) arranged on the outside of the stretching cylinder (42). An air channel (32) is opened inside the bracket (11). The lower end of the air pipe (31) is communicated with the air cavity (63) through an interface, and the upper end is also communicated with the air channel (32) through an interface. A pressure cylinder (33) is fixedly connected to the lower end surface of the upper disc body (1); The lower end face of the pressure cylinder (33) is provided with a telescopic rod (34). The upper end of the telescopic rod (34) extends into the pressure cylinder (33), and one end of the telescopic rod (34) located inside the pressure cylinder (33) is also fixedly connected with a pneumatic plug (62). A rubber block is adhesively connected to the lower end of the telescopic rod (34). The air duct (32) extends into the upper disc body (1) and is communicated with the inside of the pressure cylinder (33).

2. The mechanical equipment maintenance equipment according to claim 1, characterized in that: The adjusting assembly (2) includes an outer sleeve (21) fixedly connected to the center of the upper end face of the upper disc body (1). The internal thread sleeve (14) penetrates through the outer sleeve (21) and the upper disc body (1), and the three are movably connected. Sliding grooves (23) are symmetrically formed on the outer surface of the internal thread sleeve (14). Sliders (22) are slidably connected inside the sliding grooves (23). The sliders (22) are fixed to the inner wall of the outer sleeve (21). The sliders (22) and the sliding grooves (23) match and fit with each other, and the inner wall of the outer sleeve (21) is attached to the outer wall of the internal thread sleeve (14).

3. The mechanical equipment maintenance equipment according to claim 2, characterized in that: The sliding groove (23) is designed in an S-shaped structure. A semi-circular clamping groove matching the slider (22) is formed at the bending point of the S-shaped sliding groove (23), and the heights of the bending points of the sliding groove (23) decrease in sequence.

4. The mechanical equipment maintenance equipment according to claim 1, characterized in that: The upper end of the stretching cylinder (42) is fixedly connected with a hinge ball end (43). A spherical groove is formed at the corresponding position of the lower end face of the bracket (11) and the hinge ball end (43). The stretching cylinder (42) is embedded and connected inside the spherical groove through the hinge ball end (43), and the two are rotatably connected.

5. The mechanical equipment maintenance equipment according to claim 4, characterized in that: The end head (5) is made of circular flat alloy metal, and its annular side surface is fixed to the extension rod (41). A number of tooth-shaped metal strips are equidistantly distributed on the annular side surface of the end head (5).

6. The mechanical equipment maintenance equipment according to claim 1, characterized in that: The air pipe (31) is made of hard rubber material and is spirally distributed. The telescopic rod (34) and the pressure cylinder (33) are made of stainless steel metal.

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