Dismounting device for automobile hub bearing

Abstract

The invention belongs to the technical field of automobile bearing disassembling equipment, and discloses an automobile hub bearing disassembling device which comprises a rectangular box, a main lead screw is rotationally installed in the rectangular box, a ring block is installed on the outer wall of the main lead screw in a threaded mode, and a fixing mechanism is arranged in the rectangular box. An adjusting mechanism is arranged on the outer wall of the main screw rod; the adjusting mechanism comprises a limiting assembly and a driving assembly, the driving assembly comprises an auxiliary lead screw rotationally installed on the outer wall of the main lead screw, the adjusting mechanism is designed to adapt to automobile hub bearings of different sizes, and the adjusting mechanism can be adjusted through threaded connection of the auxiliary lead screw in the driving assembly and the hollow column and hinge design of a connecting rod and an arc-shaped block. The arc-shaped blocks can expand or contract according to needs and are tightly attached to the inner walls of bearings of different sizes, and meanwhile, the adaptive capacity of the device to different hub curved surfaces is enhanced through threaded connection of the two-way lead screws in the fixing mechanisms and the adjusting blocks and the arc design of the bent parts of the adjusting blocks.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile bearing disassembly equipment, in particular to a disassembly device for automobile wheel hub bearings. Background Art

[0002] Automobile wheel hub bearings are key components of automobiles. Their main functions are to bear weight and provide precise guidance for the rotation of the wheel hub. They must withstand both axial loads and radial loads. The wheel hub bearing unit is developed on the basis of standard angular contact ball bearings and tapered roller bearings. It integrates two sets of bearings into one unit and has the advantages of good assembly performance, no need for clearance adjustment, light weight, compact structure, large load capacity, etc. Moreover, it is a sealed bearing and can be pre-loaded with grease, thereby omitting the external wheel hub seal and avoiding maintenance. It has been widely used in cars and is gradually expanding its application in trucks.

[0003] Traditional disassembly tools have significant lack of adaptability when dealing with automobile wheel hub bearings of different models and specifications. These tools are usually designed with fixed sizes or limited adjustable ranges, and are difficult to perfectly match with bearings of various models and specifications, resulting in reduced disassembly efficiency and even possible damage to the bearings or tools. In addition, the structural differences between different bearings, such as bearing seats, sealing forms and installation positions, also make it difficult for traditional tools to clamp and position, increasing the difficulty and risk of disassembly. More importantly, these tools often lack versatility and can only be used to disassemble bearings of specific models. Frequent replacement of tools not only increases the complexity of operation, but also increases costs. Therefore, they need to be improved and optimized. Summary of the invention

[0004] In order to solve the problem raised in the above background technology that traditional disassembly tools are difficult to adapt to automobile wheel hub bearings of different models and specifications due to fixed size design, limited adjustable range and lack of versatility, resulting in low disassembly efficiency, increased cost and risk of damage, the present invention provides a disassembly device for automobile wheel hub bearings.

[0005] To achieve the above object, the present invention provides the following technical solution: a disassembly device for automobile wheel hub bearings, comprising a rectangular box, a main screw is rotatably installed inside the rectangular box, a ring block is threadedly installed on the outer wall of the main screw, a fixing mechanism is arranged inside the rectangular box, and an adjustment mechanism is arranged on the outer wall of the main screw; The adjusting mechanism includes a limit assembly and a driving assembly, and the driving assembly includes an auxiliary screw rod rotatably mounted on the outer wall of the main screw rod, and three hollow columns are threadedly mounted on the outer wall of the auxiliary screw rod, and two connecting rods are respectively hingedly mounted on the outer walls of the three hollow columns, and arc blocks are respectively hingedly mounted on the outer walls of the corresponding two connecting rods, and the arc blocks and the corresponding two connecting rods are designed to be distributed in circles with equal distances around the axis of the main screw rod as the center of the circle.

[0006] Preferably, the limiting assembly comprises a triangular block fixedly mounted on the outer wall of the ring block, and three groups of sliding grooves are provided on the outer wall of the triangular block, and the three groups of sliding grooves all penetrate the triangular block.

[0007] Preferably, a protrusion is fixedly mounted on one side of the three arc blocks close to the triangular block, and the three protrusions are slidably connected to the corresponding sliding grooves.

[0008] Preferably, three connecting rods are fixedly mounted on the bottom of the ring block, two bottom ring sheets are fixedly mounted on the other ends of the three connecting rods, and the hollow column and the arc block are arranged between the ring block and the corresponding bottom ring sheet.

[0009] Preferably, a bottom fixing sleeve of the auxiliary screw rod is provided with a second knob, and the second knob is rotatably connected to the corresponding bottom ring sheet.

[0010] Preferably, a limit ring is fixedly installed at the bottom of the main screw rod, and the outer diameter value of the limit ring is greater than the inner diameter value of the auxiliary screw rod.

[0011] Preferably, the fixing mechanism includes two bidirectional screws rotatably installed inside a rectangular box, and adjustment blocks are threadedly sleeved on the outer walls at both ends of the two bidirectional screws, one end of the two adjustment blocks extends out of the rectangular box, and a rectangular groove is provided on one side of the rectangular box, and the two adjustment blocks are slidably connected to the rectangular groove, and the other ends of the two adjustment blocks are bent inward and have a triangular cross-section, and the side where the bent parts of the two adjustment blocks are close to each other is designed as an arc.

[0012] Preferably, two round rods are arranged inside the rectangular box, one of which extends out of the rectangular box and is rotatably connected to the rectangular box, and the other round rod is entirely inside the rectangular box and is fixedly connected to the rectangular box.

[0013] Preferably, the two round rods respectively penetrate corresponding adjustment blocks, the round rod fixedly connected to the rectangular box is slidably connected to the adjustment block, and the other round rod is rotatably connected to the adjustment block.

[0014] Preferably, a gear 1 is fixedly sleeved on the outer wall of one end of the two bidirectional screw rods, and a gear 2 and a knob 1 are fixedly sleeved on the outer wall of the round rod rotatably connected to the rectangular box. The knob 1 is arranged outside the rectangular box, and the knob 1 is meshed with the two gears 1.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention can adapt to automobile wheel hub bearings of different sizes by designing an adjustment mechanism. Through the threaded connection between the auxiliary screw and the hollow column in the driving assembly, and the hinged design of the connecting rod and the arc block, the arc block can expand or contract as needed and fit closely to the inner walls of bearings of different sizes. At the same time, the threaded connection between the bidirectional screw and the adjustment block in the fixing mechanism, and the arc design of the bending part of the adjustment block further enhance the adaptability of the device to different wheel hub curved surfaces. Through high adaptability and flexibility, the disassembly device can be widely used in the disassembly of various automobile wheel hub bearings, thereby improving work efficiency and versatility.

[0016] The present invention can realize control of the fixing mechanism and the adjusting mechanism by rotating knob one and knob two. Knob one drives the bidirectional screw to rotate, so that the adjusting block moves and fixes the automobile wheel hub; knob two drives the auxiliary screw to rotate, so that the arc block expands and fits the inner wall of the bearing. In addition, the design of the limiting components in the device, such as the sliding groove and the protrusion, ensures the stability and accuracy of the arc block during the expansion or contraction process, avoids shaking or deviation, and has the characteristics of simple operation, stable and reliable, reduces the difficulty of operation and error rate, and improves the safety and accuracy of the disassembly work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the top view structure of the present invention; Figure 3 It is a schematic diagram of the internal structure of the rectangular box of the present invention; Figure 4 For the present invention Figure 2 A is a schematic diagram of the enlarged structure of the middle part; Figure 5 It is a schematic diagram of a partial front cross-sectional structure of the present invention; Figure 6 This is a schematic diagram of the explosion structure of the regulating mechanism of the present invention; Figure 7 This is a schematic diagram of the exploded structure of the drive assembly of the present invention; Figure 8 It is a schematic diagram of the local structure of the limiting component of the present invention.

[0018] In the figure: 1, rectangular box; 2, main screw; 201, mounting head; 202, limit ring; 3, bidirectional screw; 301, gear one; 4, adjustment block; 5, round rod; 501, gear two; 502, knob one; 6, ring block; 601, bottom ring piece; 602, connecting rod; 7, triangular block; 701, sliding groove; 8, auxiliary screw; 801, knob two; 9, hollow column; 901, connecting rod; 10, arc block; 1001, protrusion. DETAILED DESCRIPTION

[0019] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0020] like Figures 1 to 8 As shown, the present invention provides a disassembly device for automobile wheel hub bearings, comprising a rectangular box 1, a main screw rod 2 is rotatably mounted inside the rectangular box 1, a ring block 6 is threadedly mounted on the outer wall of the main screw rod 2, a fixing mechanism is arranged inside the rectangular box 1, and an adjusting mechanism is arranged on the outer wall of the main screw rod 2; The adjusting mechanism includes a limit assembly and a driving assembly. The driving assembly includes a secondary screw 8 rotatably mounted on the outer wall of the main screw 2. Three hollow columns 9 are threadedly mounted on the outer wall of the secondary screw 8. Two connecting rods 901 are hingedly mounted on the outer walls of the three hollow columns 9. Arc blocks 10 are hingedly mounted on the outer walls of the corresponding two connecting rods 901. The arc blocks 10 and the corresponding two connecting rods 901 are designed to be equidistantly distributed on the circumference with the axis of the main screw 2 as the center. The limit assembly includes a triangular block 7 fixedly mounted on the outer wall of the ring block 6. Three sets of sliding grooves 701 are opened on the outer wall of the triangular block 7. The three sets of sliding grooves 701 all penetrate the triangular block 7. A protrusion 1001 is fixedly installed on one side of each arc block 10 close to the triangular block 7, and the three protrusions 1001 are slidingly connected to the corresponding sliding grooves 701 respectively. Three connecting rods 602 are fixedly installed on the bottom of the ring block 6, and two bottom ring pieces 601 are fixedly installed on the other ends of the three connecting rods 602. The hollow column 9 and the arc block 10 are arranged in the middle of the ring block 6 and the corresponding bottom ring piece 601. The bottom fixed sleeve of the auxiliary screw rod 8 is provided with a knob 2 801, and the knob 2 801 is rotatably connected to the corresponding bottom ring piece 601. A limit ring 202 is fixedly installed on the bottom of the main screw rod 2, and the outer diameter value of the limit ring 202 is greater than the inner diameter value of the auxiliary screw rod 8.

[0021] The above scheme is adopted: the main screw rod 2 is rotated to drive the ring block 6 to move axially along the main screw rod 2, and the driving component and the limit component in the adjustment mechanism are used to realize the expansion and contraction control of the arc block 10 to adapt to automobile wheel hub bearings of different sizes and complete the fixing and disassembly of the bearings. The main screw rod 2 is rotatably installed inside the rectangular box 1, and the ring block 6 is threadedly installed on the outer wall of the rectangular box. When the main screw rod 2 rotates, the ring block 6 will move along the axial direction of the main screw rod 2.

[0022] The fixing mechanism arranged inside the rectangular box 1 is used for preliminarily fixing the automobile wheel hub to ensure that the wheel hub will not shake when the bearing is removed; the auxiliary screw 8 is rotatably installed on the outer wall of the main screw 2, and three hollow columns 9 are threadedly installed on its outer wall. When the auxiliary screw 8 is rotated, the hollow column 9 will move along the axial direction of the auxiliary screw 8. Two connecting rods 901 are hingedly installed on the outer wall of each hollow column 9, and the connecting rod 901 is hinged with the arc block 10. When the hollow column 9 moves, it will drive the arc block 10 to do a circular motion with the axis of the main screw 2 as the center of the circle to achieve expansion or contraction. Limiting component: a triangular block 7 is fixedly installed on the outer wall of the ring block 6, and three groups of sliding grooves 701 are opened on the triangular block 7. A protrusion 1001 is fixedly installed on the side of the arc block 10 close to the triangular block 7. The protrusion 1001 slides in the sliding groove 701 to play a limiting and guiding role. , ensuring that the arc block 10 can remain stable when expanding or contracting and will not deviate from the predetermined trajectory, three connecting rods 602 are fixedly installed at the bottom of the ring block 6, and two bottom ring pieces 601 are fixedly installed at the other end of the connecting rod 602. The hollow column 9 and the arc block 10 are arranged between the ring block 6 and the corresponding bottom ring piece 601 to form a stable supporting structure. The bottom of the auxiliary screw rod 8 is fixedly sleeved with a knob 2 801, and the knob 2 801 is rotatably connected with the corresponding bottom ring piece 601, which is convenient for staff to operate. A limit ring 202 is fixedly installed at the bottom of the main screw rod 2, and its outer diameter value is greater than the inner diameter value of the auxiliary screw rod 8. The limit ring 202 prevents the auxiliary screw rod 8 from falling off; through the driving assembly and the limit assembly of the adjustment mechanism, the disassembly device can adapt to automobile wheel hub bearings of different sizes, thereby improving the versatility and flexibility of disassembly.

[0023] like Figures 1 to 4 As shown, the fixing mechanism includes two bidirectional screw rods 3 rotatably mounted inside the rectangular box 1, and adjusting blocks 4 are respectively threadedly sleeved on the outer walls at both ends of the two bidirectional screw rods 3. One end of the two adjusting blocks 4 extends out of the rectangular box 1, and a rectangular groove is opened on one side of the rectangular box 1. The two adjusting blocks 4 are slidably connected to the rectangular groove. The other ends of the two adjusting blocks 4 are bent inwardly and have a triangular cross-section. The side of the bent parts of the two adjusting blocks 4 that are close to each other is designed as an arc. Two round rods 5 are arranged inside the rectangular box 1, and one of the round rods 5 extends out of the rectangular box 1 and is connected to the rectangular box 1. Rotationally connected, the other round rod 5 is entirely inside the rectangular box 1 and fixedly connected to the rectangular box 1, the two round rods 5 respectively penetrate the corresponding adjusting blocks 4, the round rod 5 fixedly connected to the rectangular box 1 is slidably connected to the adjusting block 4, the other round rod 5 is rotationally connected to the adjusting block 4, and a gear 1 301 is fixedly sleeved on the outer wall of one end of the two bidirectional screw rods 3, a gear 2 501 and a knob 1 502 are fixedly sleeved on the outer wall of the round rod 5 rotatably connected to the rectangular box 1, and the knob 1 502 is arranged on the outside of the rectangular box 1, and the knob 1 502 is meshed with the two gears 1 301.

[0024] The above scheme is adopted: through the design of the fixing mechanism, the fixing and adjustment of the automobile wheel hub bearing during the disassembly process are realized, and the outer walls at both ends of the two bidirectional screw rods 3 are respectively provided with adjusting blocks 4 by thread sleeves, so that when the bidirectional screw rods 3 rotate, the adjusting blocks 4 can move along the axis of the bidirectional screw rods 3. Since the threads at both ends of the bidirectional screw rods 3 are designed in opposite directions, the two adjusting blocks 4 can move in opposite directions at the same time, and approach or move away from the midpoint at the same time, so that the adjusting blocks 4 can flexibly adapt to automobile wheels of different sizes, ensuring that the device can firmly fix the automobile wheel hub; One end of the adjusting block 4 extends out of the rectangular box 1 and is slidably connected with the rectangular groove, so that the adjusting block 4 can remain stable when moving without shaking or shifting. At the same time, the other end of the adjusting block 4 is bent inwardly and has a triangular cross-section, thereby increasing the contact area between the adjusting block 4 and the automobile wheel hub and improving the stability of the fixation. The side where the bent parts are close to each other is designed as an arc, which can better adapt to the curved surface shape of the automobile wheel hub and ensure that the adjusting block 4 can fit tightly on the automobile wheel hub; one of the round rods 5 is rotatably connected to the rectangular box 1, and the other round rod 5 is fixedly connected to the rectangular box 1 and passes through the corresponding adjusting block 4 respectively, so that the adjusting block 4 can maintain a certain degree of guidance when moving, avoiding the shift or shaking of the adjusting block 4 during the movement; the outer wall of one end of the two bidirectional screw rods 3 is divided into A gear 301 is provided on a fixed sleeve, and a gear 2 501 and a knob 1 502 are provided on the outer wall of the round rod 5 rotatably connected to the rectangular box 1; the knob 1 502 is arranged on the outside of the rectangular box 1 and meshes with the two gears 1 301, so that the staff can rotate the knob 1 502 to drive the gear 2 501 to rotate, and then drive the two gears 1 301 to rotate through the gear transmission, and finally drive the two bidirectional screw rods 3 to rotate. The operation method is simple and convenient, and the moving speed and direction of the adjustment block 4 can be controlled. By setting the fixing mechanism, not only the efficient fixing and adjustment of the automobile wheel hub bearing during the disassembly process is realized, but also the accuracy and stability of the disassembly are improved. The mechanism has a simple structure, is easy to operate, and is easy to maintain and maintain, which reduces the use cost and maintenance difficulty.

[0025] The working principle and use process of the present invention: Initial state of the device: the two adjustment blocks 4 are in a position away from each other; the three arc blocks 10 are in a contracted and closed state, which is convenient for inserting into the bearing; Fixing the device to the automobile wheel hub: the staff first inserts one end of the arc block 10 into the interior of the automobile wheel hub bearing to be disassembled; rotates the knob 1 502 to drive the round rod 5 and the gear 2 501 to rotate; the gear 2 501 meshes with the two gears 1 301, thereby driving the two gears 1 301 to rotate; the two gears 1 301 respectively drive the corresponding bidirectional screw rods 3 to rotate; the two adjustment blocks 4 are threadedly connected to the corresponding bidirectional screw rods 3; since the threads at both ends of the bidirectional screw rods 3 are designed in opposite directions, the two adjustment blocks 4 can move closer to each other along the axis of the bidirectional screw rod 3; the bent portion at the bottom of the adjustment block 4 contacts the automobile wheel hub, and finally the device is fixed by the contact between the two adjustment blocks 4 and the automobile wheel hub; Then, the knob 2 801 is rotated to drive the auxiliary screw 8 to rotate; the auxiliary screw 8 is threadedly connected to the hollow column 9, driving the hollow column 9 to move along the axis of the auxiliary screw 8; the hollow column 9 drives a number of connecting rods 602 and the connected arc blocks 10 to move; through the limiting effect of the triangular block 7 and the sliding groove 701 on the outer wall of the triangular block 7, the three arc blocks 10 and the protrusions 1001 on their outer walls slide in the sliding groove 701 and expand outward, and the arc blocks 10 finally fit completely with the inner wall of the bearing to achieve fixation; Disassembling the bearing: fix the electric rotating head and the mounting head 201; start the electric rotating head to drive the main screw 2 and the mounting head 201 to rotate; the main screw 2 and the ring block 6 are threadedly connected, and the ring block 6 is driven to move along the axis of the main screw 2; the ring block 6 continuously approaches the rectangular box 1, and the hollow column 9 and the arc block 10 are moved toward the rectangular box 1 together through the bottom ring piece 601 and the connecting rod 602; the arc block 10 drives the bearing to move outside the automobile wheel hub, and finally the bearing is separated from the automobile wheel hub; Through the above steps, the automobile wheel hub bearing disassembly device can efficiently and accurately complete the bearing disassembly work.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A disassembly device for automobile wheel hub bearings, comprising a rectangular box (1), characterized in that: A main screw rod (2) is rotatably mounted inside the rectangular box (1), a ring block (6) is threadedly mounted on the outer wall of the main screw rod (2), a fixing mechanism is arranged inside the rectangular box (1), and an adjustment mechanism is arranged on the outer wall of the main screw rod (2); The adjustment mechanism comprises a limit assembly and a drive assembly, wherein the drive assembly comprises a secondary screw (8) rotatably mounted on the outer wall of a main screw (2), three hollow columns (9) being threadedly mounted on the outer wall of the secondary screw (8), two connecting rods (901) being hingedly mounted on the outer walls of the three hollow columns (9), arc blocks (10) being hingedly mounted on the outer walls of the corresponding two connecting rods (901), the arc blocks (10) and the corresponding two connecting rods (901) being designed to be equidistantly distributed on a circle with the axis of the main screw (2) as the center.

2. The disassembly device for automobile wheel hub bearing according to claim 1, characterized in that: The limiting assembly comprises a triangular block (7) fixedly mounted on the outer wall of the ring block (6), and three groups of sliding grooves (701) are provided on the outer wall of the triangular block (7), and the three groups of sliding grooves (701) all penetrate the triangular block (7).

3. The disassembly device for automobile wheel hub bearing according to claim 2, characterized in that: A protrusion (1001) is fixedly mounted on one side of the three arc-shaped blocks (10) close to the triangular block (7), and the three protrusions (1001) are slidably connected to the corresponding sliding grooves (701).

4. The disassembly device for automobile wheel hub bearing according to claim 1, characterized in that: Three connecting rods (602) are fixedly mounted on the bottom of the ring block (6), two bottom ring sheets (601) are fixedly mounted on the other ends of the three connecting rods (602), and the hollow column (9) and the arc block (10) are arranged between the ring block (6) and the corresponding bottom ring sheet (601).

5. The disassembly device for automobile wheel hub bearing according to claim 1, characterized in that: The bottom fixed sleeve of the auxiliary screw rod (8) is provided with a second knob (801), and the second knob (801) is rotatably connected to the corresponding bottom ring piece (601).

6. The disassembly device for automobile wheel hub bearing according to claim 5, characterized in that: A limit ring (202) is fixedly mounted on the bottom of the main screw rod (2), and the outer diameter of the limit ring (202) is greater than the inner diameter of the auxiliary screw rod (8).

7. The disassembly device for automobile wheel hub bearing according to claim 1, characterized in that: The fixing mechanism comprises two bidirectional screw rods (3) rotatably mounted inside the rectangular box (1), and adjustment blocks (4) are respectively threadedly sleeved on the outer walls at both ends of the two bidirectional screw rods (3), one end of the two adjustment blocks (4) extends out of the rectangular box (1), one side of the rectangular box (1) is provided with a rectangular groove, the two adjustment blocks (4) are slidably connected to the rectangular groove, the other ends of the two adjustment blocks (4) are bent inwardly and have a triangular cross-section, and the sides of the two adjustment blocks (4) that are close to each other are designed as arcs.

8. The disassembly device for automobile wheel hub bearing according to claim 7, characterized in that: Two round rods (5) are arranged inside the rectangular box (1), one of the round rods (5) extending outside the rectangular box (1) and being rotatably connected to the rectangular box (1), and the other round rod (5) being entirely inside the rectangular box (1) and being fixedly connected to the rectangular box (1).

9. The disassembly device for automobile wheel hub bearing according to claim 8, characterized in that: The two round rods (5) respectively penetrate the corresponding adjustment blocks (4); the round rod (5) fixedly connected to the rectangular box (1) is slidably connected to the adjustment block (4); and the other round rod (5) is rotationally connected to the adjustment block (4).

10. The disassembly device for automobile wheel hub bearing according to claim 8, characterized in that: Gear 1 (301) is fixedly sleeved on the outer wall of one end of the two bidirectional screw rods (3), and gear 2 (501) and knob 1 (502) are fixedly sleeved on the outer wall of the round rod (5) rotatably connected to the rectangular box (1). The knob 1 (502) is arranged outside the rectangular box (1), and the knob 1 (502) is meshed with the two gear 1s (301).

Images