Truck hub assembling device convenient to use

Abstract

The invention relates to the technical field of truck hub assembling, and discloses a truck hub assembling device convenient to use, which comprises an adjustable array type screwing mechanism and a plurality of hydraulic telescopic adjusting mechanisms, the axial hollow body is fixedly installed in the length direction of the rectangular frame, the piston body is located in the axial hollow body and moves in the axial direction of the axial hollow body, and the telescopic shaft moves along with the piston body and drives the limiting moving block to move. According to the truck hub assembling device convenient to use, a plurality of nuts which are distributed in the same reference circle and arranged in an annular array mode can be disassembled at a time, so that the labor frequency of workers is reduced, the labor intensity of the workers is reduced, in addition, the device can adjust the disassembling radius during work every time according to the actual situation, and the working efficiency is improved. And therefore, a plurality of nuts in different reference circles can be disassembled or assembled, the adaptability of equipment to working scenes is improved, and the working efficiency is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of truck wheel hub assembly, in particular to a truck wheel hub assembly device that is easy to use. Background Art

[0002] The preload of the tapered roller bearing in the truck wheel hub has a great impact on the driving stability of the vehicle, reducing vehicle driving noise and wheel hub maintenance, as well as the vehicle's fuel economy and low emission characteristics. However, the existing wheel hub assembly method is to assemble the wheel hub manually, which has high labor intensity for workers, high labor costs for enterprises, and low work efficiency.

[0003] To this end, a Chinese patent with publication number "CN218776041A" announced "a truck wheel hub assembly device", whose main structure includes a lifting platform, a bottom plate is fixed on the upper surface of the lifting platform, a top plate is arranged above the bottom plate, and vertical linear bearing guide rods are arranged at the four corners of the upper surface of the bottom plate. The top end of the linear bearing guide rod is slidably connected with the bottom of the four corners of the top plate through a linear bearing, and the top end of the linear bearing guide rod extends to the top of the top plate, and a spring is sleeved on the outer side of the linear bearing guide rod. Support vertical plate 2 and support vertical plate 1 are respectively fixed at the front and rear ends of the upper surface of the top plate. The truck wheel hub assembly equipment can greatly shorten the installation time of the truck wheel hub, and can dynamically monitor the stress environment in real time during the installation, thereby ensuring that the design parameters and assembly stability and consistency can be achieved during assembly. On the premise of ensuring accuracy, the labor intensity of workers is reduced, labor costs are reduced, and work efficiency is improved.

[0004] However, when installing the truck wheel hub, since there are multiple nuts at the truck wheel hub installation location, which are multiple annular array nuts located in an inner layer and multiple annular array nuts located in an outer layer, the staff needs to move the above-mentioned truck wheel hub assembly equipment dozens of times or even dozens of times to remove or install all the nuts, resulting in still high labor intensity and reduced work efficiency. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides an easy-to-use truck wheel hub assembly device, which can disassemble multiple nuts arranged in a circular array distributed within the same pitch circle at one time, thereby reducing the number of times the staff works and further reducing the labor intensity of the staff. In addition, the device can adjust the disassembly radius during each work according to actual conditions, so as to disassemble or install multiple nuts in different pitch circles, so as to improve the adaptability of the equipment to the working scene, further improve work efficiency, and solve the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an easy-to-use truck wheel hub assembly device, comprising a handheld fixing bracket that can be held to control its own state and a drive motor fixedly installed in the handheld fixing bracket, and also comprising an adjustable array-type screwing mechanism, wherein a No. 1 rotating shaft that indirectly rotates with the rotor of the drive motor is arranged inside, a plurality of rectangular frames arranged in a circular array with the axis center line of the No. 1 rotating shaft as the reference line, a plurality of limit moving blocks located in the rectangular frame and reciprocating along the length direction of the rectangular frame, a No. 2 rotating shaft installed in the limit moving block through a bearing and rotating with the No. 1 rotating shaft through a synchronous belt, and a hexagonal wrench fixedly installed at one end of the No. 2 rotating shaft and clamped on the periphery of the nut; and a plurality of hydraulic telescopic adjustment mechanisms, wherein an axial hollow body fixedly installed along the length direction of the rectangular frame is arranged inside, a piston body located inside the axial hollow body and moving axially along the axial hollow body, and a telescopic shaft that moves with the piston body and drives the limit moving block to move.

[0007] Preferably, the adjustable array-type screwing mechanism includes a polygonal vertical plate body, a No. 1 rotating shaft is installed on the end face of the polygonal vertical plate body facing the rotor through a bearing, a plurality of No. 1 pulleys are installed in a linear array on the shaft body of the No. 1 rotating shaft, a rectangular frame is fixedly installed on each vertical side face of the polygonal vertical plate body, a limiting slide groove is arranged at the center of the rectangular frame, a pipe mounting hole is arranged on the end face of the rectangular frame away from the polygonal vertical plate body, each of the rectangular frames has a limiting moving block which moves axially along the limiting slide groove placed inside the limiting slide groove, and each of the limiting moving blocks is arranged at a position within the limiting slide groove. The end facing the pipe mounting hole is provided with a No. 1 shaft fixing groove with an inwardly concave structure, and the interior of the limit moving block is provided with a No. 1 shaft mounting hole which is parallel to the No. 1 rotating shaft and is open at both ends, and the limit moving block is provided with a No. 2 rotating shaft which is rotatable installed through a bearing inside the No. 1 shaft mounting hole, and the No. 2 rotating shaft is fixedly provided with a hexagonal wrench on an end face facing away from the No. 1 rotating shaft, and the No. 2 rotating shaft is fixedly provided with a No. 2 pulley on an end face facing the No. 1 rotating shaft, and each of the No. 2 pulleys is linked with a corresponding No. 1 pulley through a synchronous belt.

[0008] Preferably, the limiting movable block and the limiting sliding groove form an “I”-shaped structure on the contact surface.

[0009] Preferably, the structural shape of the inner concave structure of the hexagonal wrench is consistent with the structural shape of the nut to be screwed, and the structural size of the inner concave structure of the hexagonal wrench matches the structural size of the nut to be screwed.

[0010] Preferably, the hydraulic telescopic adjustment mechanism includes a component fixing block, one end of the axial hollow body is provided with a component fixing block with an integral structure therewith, the component fixing block is fixedly mounted on the corresponding end face of the rectangular frame, an axial component moving cavity is arranged inside the axial hollow body, the axial hollow body is provided with a hollow pipe with an integral structure therewith and passing through the pipe mounting hole at an end face facing the pipe mounting hole, a liquid flow hole connecting the external space and the axial component moving cavity is arranged inside the hollow pipe, the axial hollow body is provided with a No. 1 shaft body through hole connecting the external space and the axial component moving cavity at an end facing the No. 1 shaft body fixing groove, a piston body is arranged inside the axial component moving cavity for axial movement along the axial component moving cavity, a telescopic shaft passing through the No. 1 shaft body through hole is fixedly mounted on the piston body at the end face facing the No. 1 shaft body through hole, and a No. 1 coil spring is arranged on the periphery of the shaft body located inside the axial component moving cavity.

[0011] Preferably, the initial length of the No. 1 coil spring is greater than the depth of the axial component moving cavity, one end of the No. 1 coil spring abuts against an end face of the axial component moving cavity located at the No. 1 shaft body through-hole, and the other end abuts against an end face of the piston body located at the telescopic shaft.

[0012] Preferably, it also includes a torque strength control mechanism, which is internally provided with a hollow disk body that rotates with the rotor, an inner rotating column that drives the No. 1 rotating shaft to rotate, and an arc-shaped contact plate that can enable the hollow disk body and the inner rotating column to be linked by friction.

[0013] Preferably, the torque strength control mechanism includes a hollow disk body and an inner rotating column, the upper end surface of the hollow disk body is provided with a No. 2 shaft body fixing groove for fixing and installing the rotor, the center of the hollow disk body is provided with a columnar component mounting cavity, the center of the bottom end of the hollow disk body is provided with a shaft body mounting hole, the shaft body of the No. 1 rotating shaft is installed inside the shaft body mounting hole through a bearing, the center of the columnar component mounting cavity is placed with an inner rotating column, the bottom center of the inner rotating column is provided with a No. 3 shaft body fixing groove for installing the No. 1 rotating shaft, and the hollow disk body is located at the periphery of the columnar component mounting cavity. A plurality of circular array-type transverse component movable cavities are provided, and the circumferential side surfaces of the transverse component movable cavities and the cylindrical component mounting cavity are connected via a No. 2 shaft mounting hole, and an inner movable plate capable of axially moving along the cylindrical component mounting cavity is arranged inside the hollow disk body located inside the cylindrical component mounting cavity, a No. 2 coil spring is arranged at one end of the inner movable plate, a connecting shaft body penetrating the No. 2 shaft mounting hole is fixedly installed at the other end of the inner movable plate, and an arc-shaped resistance plate that abuts against the circumferential surface of the inner rotating cylinder is fixedly installed at one end of the connecting shaft body located inside the cylindrical component mounting cavity.

[0014] Preferably, one end of the No. 2 coil spring abuts against one end surface of the inner movable plate, and the other end abuts against one end surface of the movable cavity of the transverse component, and the No. 2 coil spring is in a compressed state.

[0015] Preferably, the structural radius of the inner concave surface of the arc-shaped contact plate matches the structural radius of the inner rotating column.

[0016] Compared with the prior art, the present invention provides a truck wheel hub assembly device that is easy to use and has the following beneficial effects:

[0017] 1. It can disassemble multiple nuts arranged in a circular array within the same pitch circle at one time, thereby reducing the number of times the staff work, and further reducing the labor intensity of the staff. In addition, the device can adjust the disassembly radius during each work according to the actual situation, so as to disassemble or install multiple nuts in different pitch circles, so as to improve the adaptability of the equipment to the working scene and further improve the work efficiency.

[0018] 2. By setting up an adjustable array screwing mechanism, under the action of the synchronous belt, multiple hexagonal wrenches will be driven to rotate at the same time. Before the hexagonal wrench rotates, the nut at the wheel installation is inserted into the hexagonal groove of the hexagonal wrench, which can drive multiple nuts to rotate synchronously. At the same time, by controlling the rotation direction of the drive motor, the working direction of the nut can be controlled to achieve the effect of installation or disassembly. Due to the synchronization of multiple nuts, the working efficiency of the equipment is improved.

[0019] 3. By setting up a hydraulic telescopic adjustment mechanism, the liquid can enter the interior of the moving cavity of each axial component, so that the amount entering the moving cavity of each axial component can be kept consistent. Under the reaction force of the No. 1 coil spring, the extension length of each telescopic shaft can be kept consistent, so that each hexagonal wrench is maintained on the same pitch circle. Then, a synchronous belt of a suitable size is selected to connect the corresponding No. 1 pulley and No. 2 pulley, so that multiple nuts under different pitch circles can be installed or disassembled, thereby improving the adaptability of the equipment to working scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A perspective view of the present invention;

[0021] Figure 2 is a three-dimensional cross-sectional view of the present invention;

[0022] Figure 3 It is a three-dimensional diagram of the adjustable array type screwing mechanism in the present invention;

[0023] Figure 4 It is a three-dimensional cross-sectional view of the adjustable array type screwing mechanism in the present invention;

[0024] Figure 5 It is a three-dimensional diagram of the hydraulic telescopic adjustment mechanism of the present invention;

[0025] Figure 6 It is a three-dimensional cross-sectional view of the hydraulic telescopic adjustment mechanism of the present invention;

[0026] Figure 7 is a three-dimensional cross-sectional view of the torque intensity control mechanism of the present invention at a first viewing angle;

[0027] Figure 8 It is a three-dimensional cross-sectional view of the torque intensity control mechanism in the present invention at a second viewing angle.

[0028] Among them: 1. Drive motor; 2. Rotor; 3. Handheld fixed bracket; 4. Adjustable array screw mechanism; 41. Polygonal vertical plate; 42. No. 1 rotating shaft; 43. No. 1 pulley; 44. Synchronous belt; 45. Rectangular frame; 46. Limit slide; 47. Pipe mounting hole; 48. Limit moving block; 49. No. 1 shaft mounting hole; 410. No. 2 pulley; 411. Hexagon wrench; 412. No. 1 shaft fixing groove; 413. No. 2 rotating shaft; 5. Hydraulic telescopic adjustment mechanism; 51. Axial hollow body; 52. Part fixing block; 53, hollow pipe; 54, axial part moving cavity; 55, No. 1 shaft body through hole; 56, liquid flow hole; 57, piston body; 58, telescopic shaft; 59, No. 1 coil spring; 6, torque strength control mechanism; 61, hollow disk; 62, No. 2 shaft body fixing groove; 63, cylindrical part installation cavity; 64, No. 2 shaft body installation hole; 65, transverse part movable cavity; 66, shaft body through hole; 67, inner movable plate; 68, No. 2 coil spring; 69, arc-shaped contact plate; 610, inner rotating column; 611, No. 3 shaft body fixing groove. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1 and Figure 2 A truck wheel hub assembly device that is easy to use includes a handheld fixing bracket 3 that can be held to control its own state and a drive motor 1 fixedly installed in the handheld fixing bracket 3. The staff can control the operating angle and state of the device through the handheld fixing bracket 3 and start the drive motor 1 to work.

[0031] In order to simultaneously install or remove multiple nuts located in the same pitch circle, thereby improving the working efficiency of the equipment, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , it is necessary to set up an adjustable array type screwing mechanism 4, which is provided with a No. 1 rotating shaft 42 that rotates indirectly with the rotor 2 of the driving motor 1, a plurality of rectangular frames 45 arranged in a circular array with the axis of the No. 1 rotating shaft 42 as the reference line, a plurality of limit moving blocks 48 located in the rectangular frame 45 and reciprocating along the length direction of the rectangular frame 45, a No. 2 rotating shaft 413 installed in the limit moving block 48 through a bearing and rotating with the No. 1 rotating shaft 42 through a synchronous belt 44, and a No. 2 rotating shaft 413 fixedly installed at one end of the No. 2 rotating shaft 413 and clamped on the outer periphery of the nut When the No. 1 rotating shaft 42 rotates, the multiple No. 2 rotating shafts 413 and the hexagonal wrench 411 will eventually be driven to rotate at the same time (the specific process will be explained later). Before the hexagonal wrench 411 rotates, the nut at the wheel installation location is inserted into the hexagonal groove of the hexagonal wrench 411, which can drive the multiple nuts to rotate synchronously. At the same time, by controlling the rotation direction of the drive motor 1, the working direction of the nut can be controlled to achieve the effect of installation or disassembly. Due to the synchronization of multiple nuts, the working efficiency of the equipment is improved.

[0032] Regarding the specific structure of the adjustable array screwing mechanism 4, Figure 1 - Figure 4, including a polygonal vertical plate body 41, on the end face of the polygonal vertical plate body 41 facing the rotor 2, a No. 1 rotating shaft 42 is installed through a bearing, and a plurality of No. 1 pulleys 43 are installed in a linear array on the shaft body of the No. 1 rotating shaft 42. A rectangular frame 45 is fixedly installed on each vertical side face of the polygonal vertical plate body 41, and a limiting slide groove 46 is arranged at the center of the rectangular frame 45. The rectangular frame 45 is provided with a pipe mounting hole 47 on the end face away from the polygonal vertical plate body 41. Each rectangular frame 45 is provided with a limiting moving block 48 that moves axially along the limiting slide groove 46 inside the limiting slide groove 46. In order to prevent the limiting moving block 48 from running off during movement, it is necessary to make the limiting moving block 48 and the limiting slide groove 46 form an "I"-shaped structure on the contact surface, and each limiting moving block 48 is provided with a No. 1 shaft body with an inner concave structure at the end facing the pipe mounting hole 47. A fixed groove 412, the interior of the limiting movable block 48 is provided with a No. 1 shaft body mounting hole 49 which is parallel to the No. 1 rotating shaft 42 and is open at both ends. The limiting movable block 48 is provided with a rotating No. 2 rotating shaft 413 installed inside the No. 1 shaft body mounting hole 49 through a bearing. The No. 2 rotating shaft 413 is fixedly installed with an Allen key 411 on an end face facing away from the No. 1 rotating shaft 42. In order to cooperate with the disassembly or installation of the nut, it is necessary to make the structural shape of the inner concave structure of the Allen key 411 consistent with the structural shape of the nut to be screwed, and the structural size of the inner concave structure of the Allen key 411 matches the structural size of the nut to be screwed. The No. 2 rotating shaft 413 is fixedly installed with a No. 2 pulley 410 on an end face facing the No. 1 rotating shaft 42, and each No. 2 pulley 410 is linked with a corresponding No. 1 pulley 43 through a synchronous belt 44.

[0033] In order to install or remove multiple nuts with different pitch circles, so as to improve the adaptability of the equipment to the working scene, please refer to Figure 1 - Figure 6 It is necessary to set up a plurality of hydraulic telescopic adjustment mechanisms 5, inside which are arranged an axial hollow body 51 fixedly installed along the length direction of the rectangular frame 45, a piston body 57 located inside the axial hollow body 51 and moving axially along the axial hollow body 51, and a telescopic shaft 58 that moves with the piston body 57 and drives the limit moving block 48 to move.

[0034] For the specific structure of the hydraulic telescopic adjustment mechanism 5, please refer to Figure 1 - Figure 6, including a component fixing block 52, one end of the axial hollow body 51 is provided with a component fixing block 52 of an integral structure therewith, the component fixing block 52 is fixedly mounted on the corresponding end face of the rectangular frame 45, an axial component moving cavity 54 is arranged inside the axial hollow body 51, and the axial hollow body 51 is provided with a hollow pipe 53 of an integral structure therewith and penetrating the pipe mounting hole 47 on one end face facing the pipe mounting hole 47, and a liquid flow hole 56 connecting the external space and the axial component moving cavity 54 is arranged inside the hollow pipe 53, and the axial hollow body 51 is provided with a liquid flow hole 56 connecting the external space and the axial component moving cavity 54 on one end facing the first shaft body fixing groove 412 A No. 1 shaft body through hole 55 is provided to connect the external space and the axial component moving cavity 54. A piston body 57 is placed inside the axial component moving cavity 54 to move axially along the axial component moving cavity 54. A telescopic shaft 58 is fixedly installed on the end face of the piston body 57 facing the No. 1 shaft body through hole 55 to pass through the No. 1 shaft body through hole 55. A No. 1 coil spring 59 is placed on the periphery of the telescopic shaft 58 located inside the axial component moving cavity 54. In order to provide an elastic reaction force, it is necessary to make the initial length of the No. 1 coil spring 59 greater than the depth of the axial component moving cavity 54. One end of the coil spring 59 abuts against one end surface of the axial component moving cavity 54 located at the No. 1 shaft body through hole 55, and the other end abuts against one end surface of the piston body 57 located at the telescopic shaft 58. When the working radius needs to be adjusted, first, each synchronous belt 44 is removed, and then a liquid valve that can flow liquid is installed inside each liquid flow hole 56, and then each hollow pipe 53 is connected to a liquid circuit of a hydraulic pump that can control the liquid flow, and the hydraulic pump is started to allow the liquid to enter the interior of each axial component moving cavity 54, so that the amount of liquid entering each axial component moving cavity 54 is To maintain consistency, under the reaction force of the No. 1 coil spring 59, the extension length of each telescopic shaft 58 can be kept consistent, so that each hexagonal wrench 411 is maintained on the same pitch circle, and when the distance between the hexagonal wrench 411 and the axial centerline of the polygonal vertical plate body 41 is consistent with the required radius during work, the hydraulic pump is turned off, and then a synchronous belt 44 of a suitable size is selected to connect the corresponding No. 1 pulley 43 and No. 2 pulley 410, and the installation or removal of multiple nuts under different pitch circles can be completed, thereby improving the adaptability of the equipment to the working scene.

[0035] To prevent damage to the thread structure caused by excessive torque on the nut, please refer to Figure 1 - Figure 8 It is necessary to set up a torque strength control mechanism 6, which is internally provided with a hollow disk body 61 that rotates with the rotor 2, an inner rotating column 610 that drives the No. 1 rotating shaft 42 to rotate, and an arc-shaped contact plate 69 that relies on friction to enable the hollow disk body 61 and the inner rotating column 610 to be linked.

[0036] For the specific structure of the torque intensity control mechanism 6, please refer to Figure 1 - Figure 8 , including a hollow disk body 61 and an inner rotating column 610, the upper end surface of the hollow disk body 61 is provided with a No. 2 shaft body fixing groove 62 for fixing and installing the rotor 2, the center of the hollow disk body 61 is provided with a columnar component installation cavity 63, the center of the bottom end of the hollow disk body 61 is provided with a No. 2 shaft body installation hole 64, the shaft body of the No. 1 rotating shaft 42 is installed inside the No. 2 shaft body installation hole 64 through a bearing, the center of the columnar component installation cavity 63 is provided with an inner rotating column 610, the bottom center of the inner rotating column 610 is provided with a No. 3 shaft body fixing groove 611 for installing the No. 1 rotating shaft 42, and the hollow disk body 61 is provided with a plurality of circular array-type transverse component activity cavities on the periphery of the columnar component installation cavity 63 65, the circumferential side of the transverse component movable cavity 65 and the cylindrical component mounting cavity 63 are connected through the shaft body through hole 66, and the hollow disk body 61 is provided with an inner movable plate 67 capable of axial movement along the cylindrical component mounting cavity 63 inside the cylindrical component mounting cavity 63, and a No. 2 coil spring 68 is provided at one end of the inner movable plate 67. In order to provide the maximum static friction force, it is necessary to make one end of the No. 2 coil spring 68 abut against one end surface of the inner movable plate 67 and the other end abut against one end surface of the transverse component movable cavity 65, and the No. 2 coil spring 68 is in a compressed state, and the other end of the inner movable plate 67 is fixedly installed with a connecting shaft body that passes through the shaft body through hole 66, and the connecting shaft body is located at the cylindrical An arc-shaped abutment plate 69 that abuts against the circumferential surface of the inner rotating column 610 is fixedly installed at one end of the component installation cavity 63. In order to have a wider contact surface, it is necessary to make the structural radius of the inner concave surface of the arc-shaped abutment plate 69 match the structural radius of the inner rotating column 610. During operation, when the hexagonal wrench 411 drives the nut to rotate, it is necessary to overcome the torque damping F resistance between the nut and the screw. The F resistance will eventually act between the inner rotating column 610 and the arc-shaped abutment plate 69. When the F resistance is less than the force formed by the maximum static friction between the inner rotating column 610 and the arc-shaped abutment plate 69, the hollow disk body 61 can drive the inner rotating column 610 and the arc-shaped abutment plate 69 to rotate, thereby It drives the No. 1 rotating shaft 42 to rotate, thereby realizing the removal or installation of the nut. Once the F resistance is greater than the force formed by the maximum static friction between the inner rotating column 610 and the arc-shaped contact plate 69, the rotor 2 will normally drive the hollow disk body 61 and the arc-shaped contact plate 69 to rotate, and the inner rotating column 610 will be in a stationary state. Relative rotation will occur between the hollow disk body 61 and the arc-shaped contact plate 69, and the driving torque strength between the nut and the screw will not continue to increase, thereby preventing the torque strength on the nut from being too high and causing damage to the threaded structure. Therefore, when it is observed that the No. 1 rotating shaft 42 cannot continue to rotate, it can be seen that the surface torque resistance has reached a predetermined value and the corresponding work can be stopped.

[0037] When in use, first adjust the working radius, remove each synchronous belt 44, and then install a liquid valve that can flow liquid inside each liquid flow hole 56, and then connect each hollow pipe 53 with a liquid circuit of a hydraulic pump that can control the liquid flow, start the hydraulic pump, so that the liquid enters the interior of each axial component moving cavity 54, so that the amount entering the interior of each axial component moving cavity 54 is consistent, and under the reaction force of the No. 1 coil spring 59, the extension length of each telescopic shaft 58 can be kept consistent, so that each hexagonal wrench 411 is maintained on the same pitch circle, when the distance between the hexagonal wrench 411 and the axial center line of the polygonal vertical plate body 41 is consistent with the required radius during work, turn off the hydraulic pump, and then select a synchronous belt 44 of appropriate size to connect each corresponding No. 1 pulley 43 and No. 2 pulley 410, so that the installation or removal of multiple nuts under different pitch circles can be completed;

[0038] The staff can control the operating angle and state of the equipment through the handheld fixed bracket 3, start the driving motor 1 to work, and when the No. 2 rotating shaft 413 rotates, it will drive multiple No. 1 pulleys 43 to rotate at the same time. Under the action of the synchronous belt 44, it will drive multiple hexagonal wrenches 411 to rotate at the same time. Before the hexagonal wrench 411 rotates, insert the nut at the wheel installation into the hexagonal groove of the hexagonal wrench 411, which can drive multiple nuts to rotate synchronously. At the same time, by controlling the rotation direction of the driving motor 1, the working direction of the nut can be controlled to achieve the effect of installation or disassembly.

[0039] 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 convenient truck wheel hub assembly device, comprising a handheld fixing bracket (3) that can be held to control its own state and a drive motor (1) fixedly installed in the handheld fixing bracket (3), characterized in that: Also includes, An adjustable array screwing mechanism (4) is provided with a first rotating shaft (42) which rotates indirectly with the rotor (2) of the driving motor (1), a plurality of rectangular frames (45) which are arranged in a circular array with the axis of the first rotating shaft (42) as a reference line, a plurality of limit moving blocks (48) which are located in the rectangular frames (45) and reciprocate along the length direction of the rectangular frames (45), a second rotating shaft (413) which is installed in the limit moving blocks (48) through bearings and rotates with the first rotating shaft (42) through a synchronous belt (44), and a hexagonal wrench (411) which is fixedly installed at one end of the second rotating shaft (413) and clamped on the periphery of the nut; and a plurality of hydraulic telescopic adjustment mechanisms (5), wherein an axial hollow body (51) fixedly installed along the length direction of the rectangular frame (45) is arranged inside the hydraulic telescopic adjustment mechanism, a piston body (57) located inside the hydraulic hollow body (51) and moving along the axial direction of the hydraulic hollow body (51), and a telescopic shaft (58) moving with the piston body (57) and driving the limit moving block (48) to move.

2. A convenient truck wheel hub assembly device according to claim 1, characterized in that: The adjustable array screwing mechanism (4) comprises a polygonal vertical plate body (41), wherein a first rotating shaft (42) is mounted on the end surface of the polygonal vertical plate body (41) facing the rotor (2) via a bearing, and a plurality of first pulleys (43) are mounted on the shaft body of the first rotating shaft (42) in a linear array, and a rectangular frame (45) is fixedly mounted on each vertical side surface of the polygonal vertical plate body (41), a limiting slide groove (46) is arranged at the center of the rectangular frame (45), and a pipe mounting hole (47) is arranged on the end surface of the rectangular frame (45) away from the polygonal vertical plate body (41), and each of the rectangular frames (45) is provided with a limiting moving block (48) which moves axially along the limiting slide groove (46) inside the limiting slide groove (46), and each of the limiting moving blocks (48) is arranged on the side facing the limiting slide groove (46). The end of the pipeline mounting hole (47) is provided with a No. 1 shaft fixing groove (412) with an inner concave structure, and the interior of the limiting movable block (48) is provided with a No. 1 shaft mounting hole (49) which is parallel to the No. 1 rotating shaft (42) and has both ends in an open state, and the limiting movable block (48) is provided with a No. 2 rotating shaft (413) which is rotatable through a bearing inside the No. 1 shaft mounting hole (49), and the No. 2 rotating shaft (413) is fixedly provided with a hexagonal wrench (411) on an end face away from the No. 1 rotating shaft (42), and the No. 2 rotating shaft (413) is fixedly provided with a No. 2 pulley (410) on an end face facing the No. 1 rotating shaft (42), and each of the No. 2 pulleys (410) is linked with a corresponding No. 1 pulley (43) through a synchronous belt (44).

3. A convenient truck wheel hub assembly device according to claim 2, characterized in that: The limiting moving block (48) and the limiting sliding groove (46) form an "I"-shaped structure on the contact surface.

4. A convenient truck wheel hub assembly device according to claim 2, characterized in that: The structural shape of the inner concave structure of the hexagonal wrench (411) is consistent with the structural shape of the nut to be screwed, and the structural dimensions of the inner concave structure of the hexagonal wrench (411) match the structural dimensions of the nut to be screwed.

5. The easy-to-use truck wheel hub assembly device according to claim 2, characterized in that: The hydraulic telescopic adjustment mechanism (5) comprises a component fixing block (52), one end of the axial hollow body (51) is provided with a component fixing block (52) with an integral structure therewith, the component fixing block (52) is fixedly mounted on a corresponding end face of a rectangular frame (45), an axial component moving cavity (54) is arranged inside the axial hollow body (51), and a hollow pipe (53) with an integral structure therewith and penetrating the pipe mounting hole (47) is arranged on an end face of the axial hollow body (51) facing the pipe mounting hole (47), the hollow pipe (53) is provided inside with a liquid flow hole (54) communicating with an external space and the axial component moving cavity (54). 6), the axial hollow body (51) is provided with a No. 1 shaft body through hole (55) connecting the external space and the axial component moving cavity (54) at one end facing the No. 1 shaft body fixing groove (412), the axial hollow body (51) is provided with a piston body (57) which moves axially along the axial component moving cavity (54) inside the axial component moving cavity (54), the piston body (57) is fixedly installed with a telescopic shaft (58) passing through the No. 1 shaft body through hole (55) on the end face facing the No. 1 shaft body through hole (55), and the telescopic shaft (58) is provided with a No. 1 coil spring (59) on the periphery of the shaft body inside the axial component moving cavity (54).

6. A convenient truck wheel hub assembly device according to claim 5, characterized in that: The initial length of the No. 1 coil spring (59) is greater than the depth of the axial component moving cavity (54), one end of the No. 1 coil spring (59) abuts against an end surface of the axial component moving cavity (54) located at the No. 1 shaft body through hole (55), and the other end abuts against an end surface of the piston body (57) located at the telescopic shaft (58).

7. A convenient truck wheel hub assembly device according to any one of claim 1, characterized in that: The invention also comprises a torque strength control mechanism (6), which is provided with a hollow disk (61) rotating with the rotor (2), an inner rotating column (610) driving the first rotating shaft (42) to rotate, and an arc-shaped contact plate (69) which can make the hollow disk (61) and the inner rotating column (610) move in linkage by means of friction.

8. A convenient truck wheel hub assembly device according to claim 7, characterized in that: The torque strength control mechanism (6) comprises a hollow disk (61) and an inner rotating column (610), wherein the upper end surface of the hollow disk (61) is provided with a No. 2 shaft body fixing groove (62) for fixing and installing the rotor (2), the center of the hollow disk (61) is provided with a columnar component mounting cavity (63), the center of the bottom end of the hollow disk (61) is provided with a No. 2 shaft body mounting hole (64), the shaft body of the No. 1 rotating shaft (42) is mounted inside the No. 2 shaft body mounting hole (64) through a bearing, the center of the columnar component mounting cavity (63) is provided with an inner rotating column (610), the bottom center of the inner rotating column (610) is provided with a No. 3 shaft body fixing groove (611) for mounting the No. 1 rotating shaft (42), the hollow disk (61) is located at the columnar component mounting cavity (63) and the No. 3 shaft body fixing groove (611) for mounting the No. 1 rotating shaft (42) is provided. A plurality of circular array-type transverse component movable cavities (65) are arranged on the periphery of the component installation cavity (63); the transverse component movable cavities (65) are connected to the circumferential side surfaces of the columnar component installation cavity (63) via the shaft body through hole (66); the hollow disk body (61) is provided with an inner movable plate (67) capable of axial movement along the columnar component installation cavity (63) inside the columnar component installation cavity (63); a No. 2 coil spring (68) is provided at one end of the inner movable plate (67); a connecting shaft body penetrating the shaft body through the shaft body through hole (66) is fixedly installed at the other end of the inner movable plate (67); and an arc-shaped contact plate (69) that contacts the circumferential surface of the inner rotating column (610) is fixedly installed at one end of the connecting shaft body located inside the columnar component installation cavity (63).

9. A convenient truck wheel hub assembly device according to claim 8, characterized in that: One end of the No. 2 coil spring (68) abuts against one end surface of the inner movable plate (67), and the other end abuts against one end surface of the transverse component movable cavity (65), and the No. 2 coil spring (68) is in a compressed state.

10. A convenient truck wheel hub assembly device according to claim 9, characterized in that: The structural radius of the inner concave surface of the arc-shaped contact plate (69) matches the structural radius of the inner rotating column (610).

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