Motor bolt tightening device for mining dump truck

Abstract

The invention relates to a motor bolt loosening and tightening device for a mining dump truck. The motor bolt loosening and tightening device comprises a box body, a bottom plate, a battery, a hollow cylinder, a cylindrical roller bearing, knocking fan blades and two sets of same knocking assemblies. The knocking fan blades, the hollow cylinder, the sleeve and other structures are fixedly connected, and the force borne by the knocking fan blades is transmitted to a motor nut through the transmission relation between the force, so that the bolt on the motor is tightened and tightened; and meanwhile, the sleeve is arranged to be of a detachable structure, and the application range of the motor bolt tightening device is widened. And knocking operation is conducted on the knocking fan blades through the two sets of knocking assemblies in the box body, so that loosening and tightening of the motor nut are achieved, and the safety risk caused by manual knocking operation is effectively avoided. And the motor bolt loosening and tightening device can be adjusted to a proper angle through the lock hole and the height adjuster, so that it is guaranteed that the device can perform loosening and tightening operation on bolts on motors of any height, and the application range of the device is widened.

Description

Technical Field

[0001] The invention relates to the field of dump trucks, and in particular to a motor bolt tightening device for a mining dump truck. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Mining dump trucks are the main mining equipment in the open-pit coal industry. In order to ensure the normal operation of mining dump trucks, temporary inspections and regular maintenance are essential processes; the motor is the core power component of mining dump trucks, and only regular maintenance can effectively reduce mechanical failures caused by the motor.

[0004] In the prior art, motor maintenance requires the use of tools to disassemble, replace parts, and assemble according to inherent procedures, and commonly used tools are wrenches, electric wrenches, etc. For larger nuts on the motor, when using ordinary wrenches, electric wrenches, etc., there is not enough force to install or remove the nuts, and usually a large hammer is required to knock the wrench and other tools to ensure that the corresponding work is completed.

[0005] However, during the hammering operation, the wrench is not accurately fixed, and the fragments generated during the hammering process pose certain safety hazards to the on-site workers. At the same time, the use of a large hammer will also cause certain damage to the user's body. Therefore, it is necessary to provide a device that can safely tighten and loosen the motor bolts. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a bolt tightening device for a mining dump truck motor, which uses structures such as knocking fan blades, cylindrical roller bearings and sleeves to be fixedly connected with the nuts on the motor, and then uses two sets of knocking components to knock the fan blades to respectively realize the tightening and loosening process of the bolts, thereby avoiding safety risks during the knocking operation.

[0007] The object of the present invention is to provide a bolt tightening device for a motor of a mining dump truck, comprising a hollow cylinder with a convex groove, a cylindrical roller bearing, a knocking blade, a sleeve and two groups of identical knocking components; the hollow cylinder with a convex groove is arranged inside the cylindrical roller bearing, the knocking blade is fixedly connected to the hollow cylinder with a convex groove, one end of the sleeve is used for fixed connection with the hollow cylinder with a convex groove, and the other end is used for fixed connection with the motor nut; the knocking component is used for knocking the knocking blade, and the sleeve is a detachable sleeve.

[0008] As a further technical solution, the tensioning device also includes a box body, a bottom plate, and a battery. The box body is arranged on the bottom plate, a circular hole is opened in the center of one side surface of the box body, and the cylindrical roller bearing is transversely arranged at the circular hole; the convex groove hollow cylinder is transversely arranged in the cylindrical roller bearing; the knocking fan blade is arranged at the center position inside the box body and is fixedly connected to the convex groove hollow cylinder; the battery is arranged directly above the knocking fan blade in the box body, and the two groups of identical knocking components are symmetrically arranged on both sides of the battery.

[0009] As a further technical solution, the knocking assembly includes a connecting rod, a DC motor, a wheel disc, a support rod, a rubber sleeve wrapped rod, a spring, a spring piston and a knocking block, one end of the connecting rod is laterally fixedly connected to the power supply, the other end of the connecting rod is fixedly connected to the DC motor, the wheel disc is arranged on the central rotating shaft of the DC motor, one end of the support rod is fixedly connected to the wheel disc, the spring piston is arranged on the support rod, and the rubber sleeve wrapped rod is arranged at the connection between the support rod and the spring piston; the spring is arranged at the bottom of the spring piston, one end of the spring is fixedly connected to the bottom of the spring piston, the other end of the spring is fixedly connected to the knocking block, a cylindrical space of the same shape as the support rod is opened inside the knocking block, and the knocking block is arranged on the support rod in a nested manner.

[0010] As a further technical solution, a spring piston support frame is arranged inside the box.

[0011] As a further technical solution, the interior of the connecting rod is configured to be hollowed out for placing wires between the battery and the DC motor.

[0012] As a further technical solution, the striking fan blades, the power supply and two groups of identical striking components are located on the same plane.

[0013] As a further technical solution, the motor bolt tightening device also includes two groups of identical height adjustment components, and the height adjustment components include locking holes and height adjusters; the locking holes in the two groups of identical height adjustment components are symmetrically arranged on the bottom plate inside the bottom ends of two opposite side surfaces of the box body, and the two opposite side surfaces are two adjacent side surfaces with circular holes.

[0014] As a further technical solution, symmetrical through holes are provided at the bottom ends of the two opposite side surfaces, and the through holes are used for the height adjuster to be fixedly connected to the internal locking hole through the box body.

[0015] As a further technical solution, the box body, the bottom plate and the striking block are made of steel.

[0016] As a further technical solution, the striking fan blades are made of alloy steel.

[0017] Beneficial effects of one or more of the above technical solutions:

[0018] (1) In this embodiment, the knocking fan blades, cylindrical roller bearings, sleeves and other structures are fixedly connected to the nuts on the motor. Through the force transmission relationship, the force exerted on the knocking fan blades is transmitted to the motor nuts, thereby completing the tightening and loosening of the bolts on the motor. At the same time, the sleeve is set as a detachable structure, which improves the application scope of the motor bolt tightening device.

[0019] (2) The knocking assembly of this embodiment drives the wheel to rotate through the motor, and the wheel drives the knocking block to make reciprocating motion in the vertical direction through the support rod. During this process, the spring applies corresponding force to the knocking block, thereby driving the knocking block to knock the knocking fan blades; at the same time, the knocking assemblies on both sides of the battery are used to respectively loosen and tighten the motor nut, avoiding the safety risks existing in the original knocking operation.

[0020] (3) In this embodiment, two sets of locking holes are provided on the bottom plate on the inner side of the bottom ends of the two opposite side surfaces of the box body, and corresponding height adjusters are also provided. The motor bolt tightening device can be adjusted to a suitable angle through the locking holes and the height adjusters, thereby ensuring that the device can tighten and loosen the bolts on motors of any height, thereby improving the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings in the specification that constitute a part of this application are used to provide further understanding of the present application. In order to facilitate understanding, the proportions between the structures of each part are adjusted. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0022] Figure 1 The present invention is a structural schematic diagram of a bolt tightening device for a motor of a mining dump truck.

[0023] Figure 2 The present invention is a schematic diagram of the installation of a bolt tightening device for a motor of a mining dump truck.

[0024] Figure 3 The present invention is a partial structural schematic diagram of a bolt tightening device for a motor of a mining dump truck.

[0025] Figure 4 The present invention is a schematic structural diagram of a box body and a sleeve in a bolt tightening device for a motor of a mining dump truck.

[0026] Figure 5 The present invention is a partial structural connection schematic diagram of a striking component in a bolt tightening device for a motor of a mining dump truck.

[0027] Figure 6The present invention is a schematic diagram of the installation of a DC motor and a wheel disc in a motor bolt tightening device for a mining dump truck.

[0028] Figure 7 The present invention is a schematic structural diagram of a striking fan blade in a bolt tightening device for a motor of a mining dump truck.

[0029] Figure 8 The present invention is a schematic diagram of the installation of a convex groove hollow cylinder and a cylindrical roller bearing in a bolt tightening device for a motor of a mining dump truck.

[0030] Among them, 1. box body, 2. bottom plate, 3. battery, 4. convex groove hollow cylinder, 5. cylindrical roller bearing, 6. knocking fan blade, 7. connecting rod, 8. DC motor, 9. wheel, 10. support rod, 11. spring, 12. spring piston, 13. knocking block, 14. central rotating shaft, 15. spring piston support frame, 16. sleeve, 17. motor, 18. motor lock cap, 19. motor bracket, 20. lock hole, 21. height adjuster, 22 bolt, 23. tooth groove, 24. rubber sleeve wrapped rod, 25. groove, 26. connector, 27. connector movable port, 28. connector fixed port. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-8 , clearly and completely describe the technical solutions in the embodiments of the present invention.

[0032] Embodiment 1

[0033] Reference Figure 1-8 A bolt tightening device for a motor of a mining dump truck comprises a box body 1, a bottom plate 2, a battery 3, a convex groove hollow cylinder 4, a cylindrical roller bearing 5, a knocking fan blade 6 and two sets of identical knocking components.

[0034] Reference Figure 1-3 In this embodiment, the box body 1 adopts a rectangular box structure without a bottom surface, and the length of the bottom plate 2 is slightly longer than the length of the box body 1, and the width is consistent with the width of the box body 1. At the same time, the box body 1 and the bottom plate 1 are both made of steel; this is because the steel material itself has high strength and good plasticity and toughness. After a long period of physical impact, it is not easy to physically deform, thereby extending the service life of the motor bolt tightening device; in this embodiment, the bottom edge of the box body 1 is fixed to the bottom plate 2 by welding.

[0035] At the same time, a circular hole is opened in the center of one side of the box body 1; in this embodiment, specifically, a circular hole is opened in the center of a side surface corresponding to a long side of the rectangular box body, and the cylindrical roller bearing 5 is transversely arranged at the circular hole, that is, the circular bottom surface of the cylindrical roller bearing 5 is consistent with the size of the circular hole, and the outer surface of the cylindrical roller bearing 5 is fixedly connected to the circular hole on the box body 1 by welding; at the same time, refer to Figure 2 , half of the cylindrical roller bearing 5 is arranged inside the box body 1, and the other half is arranged outside the box body 1; and the specific position layout of the cylindrical roller bearing 5 can be adjusted accordingly according to the actual situation and needs; and the arrangement of the cylindrical roller bearing 5 in this embodiment is to facilitate the fixed connection with the knocking fan blade 6, while ensuring that the knocking fan blade 6 can be rotated to any angle, and is used to connect the sleeve 16.

[0036] Reference Figure 8 The convex groove hollow cylinder 4 is transversely arranged in the cylindrical roller bearing 5, that is, the convex groove hollow cylinder 4 is arranged inside the cylindrical roller bearing 5 in a nested or welded manner. Figure 1-2 The striking blade 6 is arranged at the center of the box body 1 and is fixedly connected to the convex groove hollow cylinder 4. Figure 7 The knocking blade 6 is provided with a groove 25, which matches the convex groove inside the convex groove hollow cylinder 4, so that it is fixed inside the convex groove hollow cylinder 4 by nesting. The convex groove hollow cylinder 4 and the cylindrical roller bearing 5 ensure that the knocking blade 6 can rotate to any angle, so that the knocking component can knock the knocking blade 6; and the material of the knocking blade 6 is alloy steel. High-quality alloy steel has high hardness, strong plasticity, and is not easy to deform, which is also suitable for knocking operations.

[0037] Reference Figure 4 , this embodiment further provides a sleeve 16; wherein one end of the sleeve 16 is fixedly connected to the convex groove hollow cylinder 4, and the other end of the sleeve 16 is used to be fixedly connected to the motor nut 18. In this embodiment, one end of the sleeve 16 is provided with a tooth groove 23, and the tooth groove 23 also matches the convex groove inside the convex groove hollow cylinder 4, and the two are fixedly connected in a nested manner, so as to achieve the transmission of the force received by the knocking fan blade 6 to the motor nut 18 on the motor 17, and to loosen and tighten the motor nut 18. At the same time, in this embodiment, the sleeve 16 is set to a detachable state, and different sleeves 16 can be used to connect and fix motor nuts 18 of different sizes and shapes, so as to improve the scope of application of the motor bolt motor tightening device.

[0038] Reference Figure 1-2, the battery 3 is arranged in the box 1 just above the knocking blade 6, and two groups of identical knocking components are symmetrically arranged on both sides of the battery 1; in this embodiment, the knocking blade 6, the battery 3 and the two groups of identical knocking components are located on the same plane. Wherein, the knocking component includes a connecting rod 7, a DC motor 8, a wheel 9, a support rod 10, a rubber sleeve wrapped rod 24, a spring 11, a spring piston 12 and a knocking block 13; one end of the connecting rod 7 is laterally fixedly connected to the power source 3, and the other end of the connecting rod 7 is also fixedly connected to the DC motor 8. Specifically, in this embodiment, the interior of the connecting rod 7 is set to a hollow state, and an opening with the same hollow shape as the interior of the connecting rod 7 is opened at the position where the battery 3 is connected to the connecting rod 7, and the connecting rod 7 is fixed to the battery 3 by welding, and the other end of the connecting rod 7 is also fixedly connected to the DC motor by welding; and the hollow space inside the connecting rod 7 is used to place the wires between the battery 3 and the DC motor 8, so as to realize the power supply of the battery 3 to the DC motor 8.

[0039] Reference Figure 6 The wheel disc 9 is arranged on the central rotating shaft 14 of the DC motor 8, and the connection between the wheel disc 9 and the central rotating shaft 14 can be fixedly connected by nesting, welding, etc. Figure 5 , one end of the support rod 10 is fixedly connected to the wheel disc 9; specifically, one end of the support rod 10 is fixedly connected to the movable connector opening 27 on the connector 26 through a bolt 22, and the fixed connector opening 28 on the connector 26 is also fixedly connected to the wheel disc 9 through a bolt 22.

[0040] During the rotation of the wheel disc, the connecting piece fixed opening 28 on the connecting piece 26 and the wheel disc 9 are stationary relative to each other, while the connecting piece movable opening 27 on the connecting piece 26 is a swinging end, thereby driving the support rod 10 to swing.

[0041] At the same time, the spring piston 12 is arranged on the support rod 7, and the outer shell of the spring piston 12 is fixed by the spring piston support frame 15 arranged in the box body 1, so as to achieve the position fixation of the spring piston 12. In this embodiment, the distance between the installation position of the spring piston 12 on the support rod 7 and the connection wheel disc 9 on the support rod 6 is greater than the diameter of the wheel disc 9, so that the spring piston 12 will not collide with the wheel disc 9 and the DC motor 8 during the rotation of the turntable 9.

[0042] in, Figure 5The size of the middle roulette wheel is only for display; and a rubber sleeve wrapped rod 24 is provided at the connection between the support rod 10 and the spring piston 12; the rubber sleeve wrapped rod 24 itself has corresponding elasticity, which can make the support rod 10 have a certain amount of left and right movement, ensuring that the roulette wheel 9 can swing to a certain extent in the process of driving the support rod 10 to rotate, so that the knocking block 13 can knock the knocking fan blade 6 from the vertical direction. At the same time, the support rod 10 and the spring piston 12 are connected by the rubber sleeve wrapped rod 24, and the support rod 10 passes through the upper and lower bottom surfaces of the spring piston 12, in order to connect the knocking block 13. The spring and block-shaped object inside the spring piston 12 are used for the movement of the spring piston 12 itself.

[0043] A spring is provided at the bottom of the spring piston 12, and one end of the spring 11 is fixedly connected to the support rod 7, and the other end of the spring 11 is fixedly connected to the knocking block 13, and the connection between each device is completed by welding; in this embodiment, a cylindrical space of the same shape as the support rod 7 is provided inside the knocking block 13, so that the knocking block 13 is arranged on the support rod 7 in a nested manner. At the same time, the material of the knocking block 13 is also steel, so as to increase the force on knocking the fan blade 6.

[0044] Through the connection of the above structures, the DC motor 8 drives the wheel 9 to rotate during operation, and the wheel 9 drives the spring piston 12 to make a reciprocating motion in a vertical state through the connecting piece and the support rod 10; and the spring piston 12 applies a corresponding force to the knocking block 13 through the squeezing and stretching of the spring 11 during the movement; when the spring piston 12 moves vertically downward, the knocking block 13 knocks the knocking blade 6 according to its own gravity and the force applied by the spring; and the knocking blade 6 transmits the force received to the motor nut 18 through the sleeve 16. Through the reciprocating motion described above, and using the knocking components on both sides of the battery 3, the motor nut 18 can be loosened and tightened respectively, thereby avoiding the safety risks brought by the manual knocking operation in the original method.

[0045] The length of the connecting rod 10 can be adjusted so that when the knocking block 13 collides with the knocking fan blade 6, the knocking block 13 will not fall off the connecting rod 10; at the same time, the mounting spring 11 of the connecting rod 10 and the knocking block 13 can be set to a material with a certain elastic elasticity and high hardness, and fixedly connected to the knocking block 13, and the knocking operation is achieved by the extension and contraction of the connecting rod 10.

[0046] Another method is to install ultrasonic position sensors on both sides of the box 1. By emitting ultrasonic waves to the side surface of the knocking blade 6, the sensor receives the signal after being reflected, and calculates the distance from the object surface by time and sound speed. When the knocking blade 6 drops to a certain position, the ultrasonic position sensor emits ultrasonic waves without reflection or the sensing reflection wave time becomes longer and the sound speed becomes slower, and the battery 3 is automatically turned off. This setting prevents the knocking block 13 and the knocking blade 6 from colliding with each other at the corners, prolonging its service life, and preventing the risk of hands being squeezed and injured by forgetting to turn off the switch when replacing the knocking blade 6.

[0047] At the same time, in this embodiment, the motor bolt tightening device also includes two sets of identical height adjustment components, each of which includes a lock hole 20 and a height adjuster 21, and the lock holes 20 in the two sets of height adjustment components are symmetrically arranged on the bottom plate 1 on the inner side of the bottom ends of the two opposite side surfaces of the box body 1; wherein the two opposite side surfaces are two adjacent side surfaces with round holes. Specifically, in this embodiment, they are the side surfaces corresponding to the two short sides of the rectangular box body, and the two lock holes 20 are respectively arranged on the inner sides of the two side surfaces and fixed to the bottom plate 2 by welding; at the same time, symmetrical through holes are opened at the bottom ends of the two opposite side surfaces, and the through holes are used for the height adjuster 21 to pass through the box body and be fixedly connected with the internal lock holes 20.

[0048] Specifically, since the motor 17 is fixed on the motor bracket 19 during repair or maintenance, the height of the motor nut 18 is not fixed. In the specific implementation process, the corresponding sleeve 16 is first installed on the motor nut 18, and the box body 1 is lifted and the position of the knocking fan blade 6 is adjusted to a horizontal state, and the tooth groove 23 on the sleeve 16 is connected to the convex groove hollow cylinder 4; and then the height adjuster 21 is fixedly connected to the lock hole 20 through the through hole, so as to achieve the fixation of the box body 1.

[0049] By operating the device, the motor bolt tightening device can be applied to the tightening of the motor nut 18 at various heights, thereby improving the application range of the device. At the same time, the front of the box body 1 can be set to an openable structure, so as to facilitate the replacement and position adjustment of the knocking fan blade 6.

[0050] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A bolt tightening device for a motor of a mining dump truck, comprising a hollow cylinder with a convex groove, a cylindrical roller bearing, a knocking blade, a sleeve and two groups of identical knocking components; the hollow cylinder with a convex groove is arranged inside the cylindrical roller bearing, the knocking blade is fixedly connected to the hollow cylinder with a convex groove, one end of the sleeve is used for being fixedly connected to the hollow cylinder with a convex groove, and the other end is used for being fixedly connected to a motor nut; the knocking component is used for knocking the knocking blade, and the sleeve is a detachable sleeve.

2. A bolt tightening device for a motor of a mining dump truck as claimed in claim 1, characterized in that: The tensioning device also includes a box body, a bottom plate, and a battery. The box body is arranged on the bottom plate. A circular hole is opened in the center of one side surface of the box body, and the cylindrical roller bearing is transversely arranged at the circular hole; the convex groove hollow cylinder is transversely arranged in the cylindrical roller bearing; the knocking fan blade is arranged at the center position inside the box body and is fixedly connected to the convex groove hollow cylinder; the battery is arranged in the box body directly above the knocking fan blade, and the two groups of identical knocking components are symmetrically arranged on both sides of the battery.

3. A bolt tightening device for a motor of a mining dump truck as claimed in claim 1, characterized in that: The knocking assembly includes a connecting rod, a DC motor, a wheel disc, a support rod, a rubber sleeve wrapped rod, a spring, a spring piston and a knocking block, one end of the connecting rod is laterally fixedly connected to the power supply, the other end of the connecting rod is fixedly connected to the DC motor, the wheel disc is arranged on the central rotating shaft of the DC motor, one end of the support rod is fixedly connected to the wheel disc, the spring piston is arranged on the support rod, and the rubber sleeve wrapped rod is arranged at the connection between the support rod and the spring piston; the spring is arranged at the bottom of the spring piston, one end of the spring is fixedly connected to the bottom of the spring piston, the other end of the spring is fixedly connected to the knocking block, a cylindrical space of the same shape as the support rod is opened inside the knocking block, and the knocking block is arranged on the support rod in a nested manner.

4. A bolt tightening device for a motor of a mining dump truck as claimed in claim 2, characterized in that: A spring piston support frame is arranged inside the box body.

5. A bolt tightening device for a motor of a mining dump truck as claimed in claim 3, characterized in that: The interior of the connecting rod is arranged to be in a hollow state for placing the wires between the battery and the DC motor.

6. A bolt tightening device for a motor of a mining dump truck as claimed in claim 1, characterized in that: The knocking fan blades, the power supply and two groups of identical knocking components are located on the same plane.

7. A bolt tightening device for a motor of a mining dump truck as claimed in claim 1, characterized in that: The motor bolt tightening device also includes two groups of identical height adjustment components, which include locking holes and height adjusters; the locking holes in the two groups of identical height adjustment components are symmetrically arranged on the bottom plate inside the bottom ends of two opposite side surfaces of the box body, and the two opposite side surfaces are two adjacent side surfaces with circular holes.

8. A bolt tightening device for a motor of a mining dump truck as claimed in claim 7, characterized in that: Symmetrical through holes are provided at the bottom ends of the two opposite side surfaces, and the through holes are used for the height adjuster to be fixedly connected with the internal locking hole through the box body.

9. A bolt tightening device for a motor of a mining dump truck as claimed in claim 2, characterized in that: The box body, bottom plate and striking block are made of steel.

10. A bolt tightening device for a motor of a mining dump truck as claimed in claim 1, characterized in that: The material of the knocking fan blade is alloy steel.

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