An easy-to-maintain construction machinery gearbox and its usage method

Abstract

The present invention relates to the technical field of construction machinery gearboxes. More specifically, the present invention provides an easily maintainable construction machinery gearbox and its usage method. By providing an adjustment component, a fixing component, and a sealing component, the sealing component can be disassembled and assembled in sections. The cover of the split mechanism is smaller in volume than the cover of the integral structure, making it convenient to carry and labor-saving to install, thus having higher efficiency. The fixing component can achieve two different forms of auxiliary fixation, and different forms of auxiliary fixation methods can be selected according to the usage scenario, with strong applicability. Moreover, the entire fixing component can assist in fixing the gearbox body, making it more stable during the installation and disassembly processes, improving the installation and disassembly efficiency, being easily maintainable. At the same time, the bottom plate is used in cooperation with the adjustment component to adjust the angle of the gearbox body, so it is applicable to different installation scenarios. And during the angle adjustment process, the shaking generated by the gearbox body can be reduced, with stable adjustment and strong practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of construction machinery gearboxes, and more specifically, to an easy-to-maintain construction machinery gearbox and its usage method. Background Art

[0002] The H / B series standard industrial gearboxes adopt a serialized and modular design concept, making the products have wide adaptability. A single product can be used independently to achieve its functions, or can be combined with this series or other models to form speed reduction and variable speed units that meet different needs.

[0003] It is mostly used in fields such as construction machinery, metallurgy, mining, or ships. For example, in the field of construction machinery, the H / B series standard industrial gearboxes are used in mechanical equipment such as excavators, loaders, and bulldozers. These equipment generally need to bear large loads and impacts, and have high requirements for the reliability and durability of the gearboxes.

[0004] Due to special working scenarios and usage requirements, this also leads to some disadvantages of the H / B series standard industrial gearboxes. For example, since gears require a certain amount of space when transmitting torque, industrial gearboxes are usually large and require more space, which will be restricted in some occasions with limited space or high lightweight requirements. At the same time, it may bring challenges in equipment layout and space utilization, and special consideration needs to be given to the space requirements for installation and maintenance. When installing and disassembling, there is no auxiliary fixing mechanism to assist in fixing to prevent the H / B series standard industrial gearbox from shifting or falling off, resulting in very inconvenient installation and maintenance, and low maintenance and installation efficiency.

[0005] At the same time, due to its structural characteristics, the structure of the H / B series standard industrial gearbox is different from the split structure of traditional industrial gearboxes, and there is only a top installation opening, making installation inconvenient. Summary of the Invention

[0006] The purpose of the present invention is to provide an easy-to-maintain construction machinery gearbox to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solution: An easy-to-maintain construction machinery gearbox, including a gearbox main body, an installation opening is provided on the gearbox main body, and a segmentally detachable sealing component is arranged in the installation opening;

[0008] A regulating component for adjusting the installation direction is also connected to the bottom of the gearbox main body, and the gearbox main body is connected to a bottom plate through the regulating component. The bottom plate can be received at the bottom of the gearbox main body, and a fixing component with a changeable fixing method is arranged in the bottom plate;

[0009] The fixed component includes an installation cavity opened inside the bottom plate. Two sliding rods are symmetrically arranged in the installation cavity, and an adjusting screw rod is arranged between the two sliding rods. Two screw sleeves are symmetrically connected to the outside of the adjusting screw rod. One end of each of the two connecting rods is connected to both sides of a single screw sleeve, and the other end of the connecting rod is slidably connected to the sliding rod. A plurality of push rods extending outside the bottom plate are arranged on the outside of the connecting rod, and a fixed side plate is connected between the ends of the push rods.

[0010] Extension mechanisms for adjusting the fixing method are arranged at both ends of the fixed side plate.

[0011] A further technical solution of the present application: The extension mechanism includes receiving grooves symmetrically opened on the outside of the fixed side plate. An auxiliary block is arranged in the receiving groove, and stabilizing blocks are symmetrically arranged on both sides of the auxiliary block. A first return spring is connected below the stabilizing block. Stabilizing grooves are also arranged on both sides inside the receiving groove, and the end of the first return spring is connected to the stabilizing groove. Pressing and fixing mechanisms inserted into the stabilizing grooves are also arranged on the fixed side plate on both sides of the receiving groove.

[0012] A further technical solution of the present application: The pressing and fixing mechanism includes a pin rod and pressing rods symmetrically installed below the pin rod. The pressing rods can be inserted into the stabilizing grooves to abut against the stabilizing blocks. Lapping parts are arranged on both sides of the upper opening of the receiving groove, and pin holes are arranged inside the lapping parts.

[0013] A second return spring is arranged inside the pin rod, and one end of a protruding pin is connected to both ends of the second return spring. The other end of the protruding pin can be connected to the pin hole.

[0014] A further technical solution of the present application: The adjusting screw rod is composed of a first screw rod and a second screw rod spliced together. The thread directions on the outside of the first screw rod and the second screw rod are opposite. A rotating hole is arranged at one end of the first screw rod away from the second screw rod. A rotating rod that can be inserted into the rotating hole to rotate the adjusting screw rod is also arranged outside the bottom plate.

[0015] A further technical solution of the present application: The adjusting component includes an adjusting seat, a connecting column installed on the adjusting seat, and an adjusting groove opened on the bottom plate corresponding to the position of the adjusting seat. An adjusting tooth corresponding to the position of the adjusting groove is arranged below the adjusting seat. The adjusting tooth can be adaptively connected to the adjusting groove. An active limiting mechanism is arranged on the adjusting tooth, and the active limiting mechanism can be connected to a gear position groove opened in the adjusting groove.

[0016] The adjusting seat is connected to a receiving cavity arranged at the bottom of the gearbox through the connecting column. A blocking part is arranged at the top end of the connecting column, and the blocking part is inside the receiving cavity. A contraction spring is sleeved outside the connecting column. A limiting part is arranged at the opening eaves of the receiving cavity at the bottom of the gearbox, and the contraction spring can abut against the limiting part.

[0017] A further technical solution of the present application: The adjusting teeth are in the shape of arc teeth arranged obliquely. The number of adjusting teeth is several, and they are all arranged in a concentric circle around the center of the adjusting seat. Moreover, the shape and number of the adjusting grooves are adapted to the shape of the adjusting teeth; The movable limiting mechanism includes an installation cavity opened on the outer arc of the adjusting teeth. One end of a third return spring is arranged in the installation cavity. The other end of the third return spring is connected to one end of an adjusting pin, and the other end of the adjusting pin can be connected to the gear position groove.

[0018] A further technical solution of the present application: The number of the gear position grooves is several, and the angle of the gear position grooves is adapted to the angle of the adjusting grooves.

[0019] A further technical solution of the present application: The sealing assembly includes a first sealing plate and a second sealing plate. On the side surfaces of the mutually approaching ends of the first sealing plate and the second sealing plate, splicing plates are symmetrically arranged in a mirror image manner. Splicing grooves are arranged on the mutually approaching end faces of the first sealing plate and the second sealing plate. Moreover, the splicing plates and the splicing grooves are spliced together to form a whole. A pushing groove is arranged at the installation opening. Positioning blocks matching the pushing groove are arranged on both sides of the first sealing plate. Fixed screw holes are arranged at the end of the pushing groove and inside the positioning blocks, and they can be fixedly connected through external bolts.

[0020] A further technical solution of the present application: Sealing strips are arranged on the bottom surfaces of the first sealing plate and the second sealing plate. A sealing groove is arranged at the edge of the installation opening, and the sealing strips can be spliced and combined with the sealing groove for sealing.

[0021] A usage method of an easy-to-maintain construction machinery gearbox, the usage method comprising the following steps:

[0022] Step 1: During use, first determine the installation position of the gearbox main body. Lift the gearbox main body to the installation area through an external hoisting device, and support the gearbox main body through the bottom plate. At this time, auxiliary positioning can be carried out through the fixing assembly. By inserting the rotating rod into the interior of the bottom plate and connecting it to the rotating hole in the first screw of the adjusting screw, by rotating the rotating rod, the entire adjusting screw is driven to rotate. The first screw and the second screw rotate stably. At the same time, both of them will drive the screw sleeves connected to their outsides to rotate. The connecting rods on both sides of the screw sleeve are slidably connected to the sliding rod to limit the rotation of the screw sleeve. The screw sleeve then moves on the outside of the adjusting screw, and at the same time the connecting rod follows the sliding and drives the push rod to move. And because the thread directions on the outsides of the first screw and the second screw are opposite, opposite moving directions are realized. The push rod then pushes out the fixed side plates connected to each of them. This is a way of auxiliary positioning, which can support outward and assist in fixing;

[0023] Step 2: Subsequently, when the installation area is not applicable for outward support for fixation, the fixing mechanism can be operated by pressing down. Press the pin rod, insert the pressing rods at both lower ends thereof into the stable slots, contact the stable blocks, drive the first return spring provided at the lower end of the stable blocks to contract, and at the same time, the auxiliary block is pressed down and extends out of the storage slot to form an inward buckling tooth. And when the pin rod is completely pressed into the lapping part, the convex pin with a spherical end will adhere to the outer edge of the lapping part. During the pressing process, the second return spring inside the pin rod contracts. After entering the lapping part, the convex pin rebounds and is pushed into the pin hole to complete positioning. Subsequently, the push rod can be retracted by reversely rotating the rotating rod, driving the fixed side plate 701 to retract, and buckling the auxiliary block at the connection to achieve the second auxiliary positioning and fixing method;

[0024] Step 3: Then, during the installation and disassembly process, when the angle of the gearbox main body needs to be adjusted, the gearbox main body can be pushed, and the adjustment assembly at its bottom works. The internal adjustment teeth slide in the adjustment slots. At the same time, the adjustment teeth move upward and rotate according to the shape of the adjustment slots. At the same time, the connecting column rotates, and the shielding part will rotate inside the receiving cavity. The upper end of the contraction spring abuts against the inner side of the limiting part and contracts while rotating, keeping the height always consistent while reducing the shaking situation. And during the rotation process, the movable limiting mechanism outside the adjustment teeth moves accordingly. One end of the adjustment pin provided in its installation cavity fits and moves inside the adjustment slot. During this process, the third return spring remains in a contracted state. When the adjustment teeth are about to rotate out of the adjustment slot, the adjustment pin will enter the gear position slot, and then the third return spring releases force and pushes one end of the adjustment pin into the gear position slot to complete the positioning and angle adjustment;

[0025] Step 4: Finally, during the installation and disassembly process, the installation opening can be opened and closed by disassembling the sealing assembly. When disassembling for internal maintenance, the first sealing plate is disassembled by removing the external fixing bolts connected to the positioning blocks. Subsequently, the first sealing plate is slid laterally, and after disassembling the first sealing plate and the second sealing plate, the second sealing plate can be taken out or pulled out to achieve disassembly. The installation can be re-operated in the opposite way.

[0026] Adopting the technical solution provided by the present invention, compared with the prior art, it has the following beneficial effects:

[0027] The present invention is provided with an adjusting component, a fixing component and a sealing component. Firstly, the sealing component seals the installation opening on the main body of the gearbox. The sealing component can be disassembled and assembled in sections. The cover of the split mechanism is smaller in volume than the cover of the integral structure, easy to carry and labor-saving to install, so the efficiency is higher. The fixing component can achieve two different forms of auxiliary fixation, and different forms of auxiliary fixation methods can be selected according to the usage scenario, with strong applicability. Moreover, the whole fixing component can assist in fixing the main body of the gearbox, making it more stable during the installation and disassembly processes, improving the installation and disassembly efficiency and being easy to maintain. At the same time, the bottom plate is used in cooperation with the adjusting component to adjust the angle of the main body of the gearbox, so it is applicable to different installation scenarios. And during the angle adjustment process, the shaking generated by the main body of the gearbox can be reduced, the adjustment is stable, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 FIG. is a schematic diagram of the overall structure of a construction machinery gearbox provided by the present invention that is easy to maintain;

[0029] Figure 2 is Figure 1 an enlarged schematic diagram of the structure at D in

[0030] Figure 3 is Figure 1 an enlarged schematic diagram of the structure at A in

[0031] Figure 4 FIG. is a schematic diagram of the internal structure of the pin rod of a construction machinery gearbox provided by the present invention that is easy to maintain;

[0032] Figure 5 FIG. is a schematic diagram of the internal structure of the bottom plate of a construction machinery gearbox provided by the present invention that is easy to maintain;

[0033] Figure 6 FIG. is a schematic diagram of the structure of the adjusting component of a construction machinery gearbox provided by the present invention that is easy to maintain;

[0034] Figure 7 FIG. is a side view schematic diagram of the adjusting component of a construction machinery gearbox provided by the present invention that is easy to maintain;

[0035] Figure 8 is Figure 7 an enlarged schematic diagram of the structure at C in

[0036] Figure 9 is Figure 1 an enlarged schematic diagram of the structure at B in

[0037] Figure 10 FIG. is a schematic diagram of the structure of the income cavity and the limiting part of a construction machinery gearbox provided by the present invention that is easy to maintain;

[0038] Figure 11 Structural schematic diagram of a sealing component of an easy - to - maintain construction machinery gearbox provided by the present invention;

[0039] Figure 12 Structural schematic diagram of a splicing groove of an easy - to - maintain construction machinery gearbox provided by the present invention.

[0040] Explanation of reference numerals in the schematic diagram:

[0041] 1. Gearbox main body; 2. Bottom plate; 3. Installation opening; 4. Sealing component; 401. First sealing plate; 402. Second sealing plate; 403. Splicing plate; 404. Positioning block; 405. Fixed screw hole; 406. Sealing strip; 407. Splicing groove; 5. Adjusting component; 501. Adjusting seat; 502. Connecting column; 503. Blocking part; 504. Shrinkage spring; 505. Adjusting tooth; 506. Third return spring; 507. Adjusting pin; 508. Adjusting groove; 509. Gear position groove; 510. Income cavity; 511. Limiting part; 6. Sealing groove; 7. Fixing component; 701. Fixed side plate; 702. Push rod; 703. Pin rod; 704. Pressing rod; 705. Receiving groove; 706. Pin hole; 707. Lapping part; 708. Stable groove; 709. Auxiliary block; 710. Stable block; 711. First return spring; 712. Convex pin; 713. Second return spring; 714. Connecting rod; 715. First screw; 716. Second screw; 717. Screw sleeve; 718. Rotating hole; 719. Rotating rod; 720. Slide rod; 8. Pushing groove. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. The present invention will be further described below in conjunction with the embodiments.

[0043] Please refer to Figures 1 to 12 , in an embodiment of the present application, an easy - to - maintain construction machinery gearbox includes a gearbox main body 1, an installation opening 3 is provided on the gearbox main body 1, and a segment - detachable sealing component 4 is arranged in the installation opening 3;

[0044] A bottom plate 2 for adjusting the installation direction is further connected to the bottom of the gearbox main body 1, and the gearbox main body 1 is connected to the bottom plate 2 through an adjusting component 5. The bottom plate 2 can be received at the bottom of the gearbox main body 1, and a fixing component 7 for changing the fixing method is arranged in the bottom plate 2;

[0045] The fixed component 7 includes an installation cavity formed inside the bottom plate 2, two sliding rods symmetrically arranged in the installation cavity, and an adjustment screw rod arranged between the two sliding rods. Two screw sleeves 717 are symmetrically connected to the outside of the adjustment screw rod, and one end of two connecting rods 714 is connected to both sides of a single screw sleeve 717. The other end of the connecting rod 714 is slidably connected to the sliding rod 720. A plurality of push rods 702 extending outside the bottom plate 2 are arranged on the outside of the connecting rod 714, and a fixed side plate 701 is connected between the ends of the push rods 702;

[0046] Both ends of the fixed side plate 701 are provided with extension mechanisms for adjusting the fixing method.

[0047] This embodiment is implemented as follows: During installation and disassembly, the installation opening 3 can be opened and closed by disassembling the sealing component 4. When disassembling for internal maintenance, the first sealing plate 401 is disassembled by removing the external fixing bolts connected to the positioning block 404. Subsequently, the first sealing plate 401 is slid laterally, and after disassembling the first sealing plate 401 and the second sealing plate 402, the second sealing plate 402 can be taken out or pulled out to achieve disassembly. In this way, segmented installation is realized. The segmented structure is light in volume and easy to carry, and the operation is simple. At the same time, during the installation and disassembly process, the fixed component 7 can be used to assist in fixing the gearbox body 1, and the fixed side plate 701 inside the fixed component 7 can realize the function of downward auxiliary extension through the extension mechanisms arranged at both ends, so as to change the fixing method and meet the different fixing requirements in different scenarios, with strong applicability.

[0048] Please refer to Figure 1 、 Figure 3 and Figure 4 As a preferred embodiment of the present application, the extension mechanism includes receiving grooves 705 symmetrically formed on the outside of the fixed side plate 701. An auxiliary block 709 is arranged in the receiving groove 705, and stabilizing blocks 710 are symmetrically arranged on both sides of the auxiliary block 709. A first return spring 711 is connected below the stabilizing block 710. Stabilizing grooves 708 are also arranged on both sides inside the receiving groove 705, and the end of the first return spring 711 is connected to the stabilizing groove 708. Pressing and fixing mechanisms inserted into the stabilizing grooves 708 are also arranged on both sides of the fixed side plate 701 where the receiving grooves 705 are located;

[0049] Furthermore, the pressing and fixing mechanism includes a pin rod 703 and pressing rods 704 symmetrically installed below the pin rod 703. The pressing rods 704 can be inserted into the stabilizing grooves 708 to abut against the stabilizing blocks 710. Lap joints 707 are arranged on both sides of the upper opening of the receiving groove 705, and pin holes 706 are arranged on the inner side of the lap joints 707;

[0050] A second return spring 713 is disposed inside the pin rod 703, and both ends of the second return spring 713 are connected to one end of a convex pin 712, and the other end of the convex pin 712 can be connected to the pin hole 706.

[0051] This embodiment is implemented as follows: During use, first, when the fixing mechanism works, the adjusting screw can be driven to rotate to move the nut 717 outside it, so that the push rod 702 pushes out the fixed side plate 701, realizing an auxiliary fixing method of outward extrusion and expansion. When it is necessary to switch the fixing method, the fixing mechanism can be pressed down to press the pin rod 703, and the pressing rods 704 at both lower ends of it are inserted into the stable grooves 708 to contact the stable blocks 710, driving the first return spring 711 provided at the lower ends of the stable blocks 710 to contract. At the same time, the auxiliary block 709 is pressed down and extends out of the storage groove 705 to form an internal locking tooth. And when the pin rod 703 is completely pressed into the overlapping part 707, the convex pin 712 with a spherical end will stick to the outer edge of the overlapping part 707. During the pressing process, the second return spring 713 inside the pin rod 703 contracts. After entering the overlapping part 707, the convex pin 712 rebounds and is pushed into the pin hole 706 to complete the positioning. Subsequently, the rotating rod 719 can be rotated in the reverse direction to retract the push rod 702, driving the fixed side plate 701 to retract, and buckling the auxiliary block 709 at the connection to realize the second auxiliary positioning and fixing method. In this way, the downward extension of the fixed side plate 701 is realized, and when it does not extend, the structure can be retracted into the fixed side plate 701, and the volume remains unchanged without affecting the use.

[0052] Please refer to Figure 1 and Figure 5 As a preferred embodiment of the present application, the adjusting screw is composed of a first screw 715 and a second screw 716 spliced together, and the outer thread directions of the first screw 715 and the second screw 716 are opposite. A rotating hole 718 is provided at one end of the first screw 715 away from the second screw 716, and a rotating rod 719 that can be inserted into the rotating hole 718 to rotate the adjusting screw is further provided outside the bottom plate 2.

[0053] This embodiment is implemented as follows: When it is necessary to assist in fixing the main body 1 of the gearbox, auxiliary positioning can be carried out through the fixing component 7. By inserting the rotating rod 719 into the bottom plate 2 and connecting it to the rotating hole 718 in the first screw rod 715 of the adjusting screw rod, by rotating the rotating rod 719, the overall rotation of the adjusting screw rod is driven. The first screw rod 715 and the second screw rod 716 rotate stably. At the same time, both will drive the screw sleeves 717 connected to their respective outsides to rotate. The connecting rods 714 on both sides of the screw sleeve 717 are slidably connected to the sliding rod 720 to limit the rotation of the screw sleeve 717. The screw sleeve 717 then moves on the outside of the adjusting screw rod, and at the same time the connecting rod 714 follows the sliding, driving the push rod 702 to move. And because the thread directions on the outsides of the first screw rod 715 and the second screw rod 716 are opposite, opposite moving directions are achieved. The push rod 702 then pushes out the fixed side plates 701 connected to each of them. This is a way of auxiliary positioning, which can support outward and assist in fixing.

[0054] Please refer to Figure 1 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 , in this embodiment, the adjusting component 5 includes an adjusting seat 501, a connecting column 502 installed on the adjusting seat 501, and an adjusting groove 508 opened on the bottom plate 2 corresponding to the position of the adjusting seat 501. An adjusting tooth 505 corresponding to the position of the adjusting groove 508 is provided below the adjusting seat 501. The adjusting tooth 505 can be adaptively connected to the adjusting groove 508. An active limiting mechanism is provided on the adjusting tooth 505, and the active limiting mechanism can be connected to the gear position groove 509 opened in the adjusting groove 508;

[0055] The adjusting seat 501 is connected to the receiving cavity 510 provided at the bottom of the gearbox through the connecting column 502. A blocking portion 503 is provided at the top end of the connecting column 502. The blocking portion 503 is inside the receiving cavity 510. A contraction spring 504 is sleeved outside the connecting column 502. A limiting portion 511 is provided at the opening eaves of the receiving cavity 510 at the bottom of the gearbox, and the contraction spring 504 can abut against the limiting portion 511;

[0056] Further, the shape of the adjusting tooth 505 is an arc tooth shape arranged obliquely. The number of the adjusting teeth 505 is several, and they are all arranged in a rotationally aligned manner with the center of the adjusting seat 501. And the shape and number of the adjusting grooves 508 are adapted to the shape of the adjusting teeth 505; The active limiting mechanism includes an installation cavity opened on the outer arc of the adjusting tooth 505. One end of a third return spring 506 is provided in the installation cavity. The other end of the third return spring 506 is connected to one end of an adjusting pin 507, and the other end of the adjusting pin 507 can be connected to the gear position groove 509;

[0057] Furthermore, there are a plurality of the shifting slots 509 , and the angles of the shifting slots 509 are adapted to the angles of the adjustment slots 508 . The adapted angles are set to achieve smooth rotation.

[0058] In actual application, during the installation and disassembly process, when it is necessary to adjust the angle of the gear box body 1, the gear box body 1 can be pushed, and the adjustment component 5 at the bottom thereof will work, and the internal adjustment tooth 505 will slide in the adjustment groove 508, and the adjustment tooth 505 will move upward and rotate according to the shape of the adjustment groove 508. At the same time, the connecting column 502 will rotate, and the shielding part will rotate inside the receiving cavity 510, and the upper end of the contraction spring 504 will abut against the inner side of the limiting part 511 and contract while rotating, so as to keep the height consistent and reduce shaking. In addition, the movable limiting mechanism on the outer side of the adjusting tooth 505 will move along during the rotation, and the adjustment device set in the installation cavity One end of the node pin 507 fits inside the adjustment slot 508 and moves. During this process, the third return spring 506 remains in a contracted state to achieve buffering and force storage, reduce shaking, and keep the gear box body 1 more stable. When the adjustment tooth 505 rotates to the outside of the adjustment slot 508, the adjustment pin 507 will enter the gear slot 509, and then the third return spring 506 releases its force to push one end of the adjustment pin 507 into the gear slot 509 to complete the positioning and angle adjustment. At the same time, the adjustment pin 507 can limit the rotation of the adjustment tooth 505 to prevent the adjustment tooth 505 from disengaging from the adjustment slot 508. In this way, the gear box body 1 is prevented from falling off the base plate 2.

[0059] See also Figure 1 , Figure 11 and Figure 12 In this embodiment, the sealing assembly 4 includes a first sealing plate 401 and a second sealing plate 402, and the side surfaces of the first sealing plate 401 and the second sealing plate 402 close to each other are mirror-symmetrically provided with a splicing plate 403, and the end surfaces of the first sealing plate 401 and the second sealing plate 402 close to each other are both provided with a splicing groove 407, and the splicing plate 403 and the splicing groove 407 are spliced together to form a whole, and a push-in groove 8 is provided at the installation opening 3, and positioning blocks 404 matching the push-in groove 8 are provided on both sides of the first sealing plate 401, and fixing screw holes 405 are provided at the end of the push-in groove 8 and in the positioning block 404, and fixed connection can be achieved by external bolts.

[0060] Furthermore, the bottom surfaces of the first sealing plate 401 and the second sealing plate 402 are both provided with sealing strips 406 , the edge of the installation opening 3 is provided with a sealing groove 6 , and the sealing strip 406 can be spliced and combined with the sealing groove 6 to seal.

[0061] During the installation and disassembly of the gearbox body 1, the installation opening 3 can be opened and closed by disassembling the sealing assembly 4. When disassembling for internal maintenance, the first sealing plate 401 is disassembled by removing the external fixing bolts connected to the positioning block 404. Subsequently, the first sealing plate 401 is slid laterally, and after disassembling the first sealing plate 401 and the second sealing plate 402, the second sealing plate 402 can be taken out or pulled out to achieve disassembly. Installation can be achieved by operating in the reverse manner. Moreover, sealing strips 406 are provided on the bottom surfaces of the first sealing plate 401 and the second sealing plate 402, which can be spliced with the sealing groove 6 during installation to achieve combined sealing.

[0062] Please refer to Figure 1 - Figure 12 , a usage method of an easy-to-maintain construction machinery gearbox according to the present invention, the usage method comprising the following steps:

[0063] Step 1: When in use, first determine the installation position of the gearbox body 1. The gearbox body 1 is lifted to the installation area by an external hoisting device, and the gearbox body 1 is supported by the bottom plate 2. At this time, auxiliary positioning can be carried out through the fixing assembly 7. By inserting the rotating rod 719 into the interior of the bottom plate 2 and connecting it to the rotating hole 718 in the first screw rod 715 of the adjusting screw rod, by rotating the rotating rod 719, the entire adjusting screw rod is driven to rotate. The first screw rod 715 and the second screw rod 716 rotate stably. At the same time, both will drive the screw sleeves 717 connected to their respective outsides to rotate. The connecting rods 714 on both sides of the screw sleeve 717 are slidably connected to the sliding rod 720 to limit the rotation of the screw sleeve 717. The screw sleeve 717 then moves on the outside of the adjusting screw rod, and at the same time the connecting rod 714 follows the sliding, driving the push rod 702 to move. And because the thread directions on the outsides of the first screw rod 715 and the second screw rod 716 are opposite, opposite moving directions are achieved. The push rod 702 then pushes out the fixed side plates 701 connected to each of them. This is a method of auxiliary positioning, which can support outward and assist in fixing;

[0064] Step 2. Subsequently, when the installation area is not suitable for fixing by outward support, the fixing mechanism can be operated by pressing down. Press the pin rod 703, insert the pressing rods 704 at both lower ends thereof into the stable slots 708, contact the stable blocks 710, drive the first return spring 711 provided at the lower ends of the stable blocks 710 to contract, and at the same time, press down the auxiliary block 709 to extend out of the storage slot 705 to form an inwardly buckling tooth. And when the pin rod 703 is completely pressed into the overlapping part 707, the convex pin 712 with a spherical end will adhere to the outer edge of the overlapping part 707. During the pressing-down process, the second return spring 713 inside the pin rod 703 contracts. After entering the overlapping part 707, the convex pin 712 rebounds and is pushed into the pin hole 706 to complete the positioning. Subsequently, the push rod 702 can be retracted by reversely rotating the rotating rod 719, driving the fixed side plate 701 to retract, and buckling the auxiliary block 709 at the connection to achieve the second auxiliary positioning and fixing method;

[0065] Step 3. Then, during the installation and disassembly process, when it is necessary to adjust the angle of the gearbox main body 1, the gearbox main body 1 can be pushed, and the adjustment assembly 5 at its bottom works. The internal adjustment tooth 505 slides in the adjustment slot 508. At the same time, the adjustment tooth 505 moves upward and rotates according to the shape of the adjustment slot 508. At the same time, the connecting column 502 rotates, and the shielding part rotates inside the receiving cavity 510. The upper end of the contraction spring 504 abuts against the inner side of the limiting part 511 and contracts while rotating, keeping the height always consistent and reducing the shaking situation. And during the rotation process, the movable limiting mechanism outside the adjustment tooth 505 moves accordingly. One end of the adjustment pin 507 provided in its installation cavity fits and moves inside the adjustment slot 508. During this process, the third return spring 506 remains in a contracted state. When the adjustment tooth 505 rotates to the outside of the adjustment slot 508, the adjustment pin 507 will enter the gear position slot 509. Subsequently, the third return spring 506 releases force and pushes one end of the adjustment pin 507 into the gear position slot 509 to complete the positioning and angle adjustment;

[0066] Step 4. Finally, during the installation and disassembly process, the installation opening 3 can be opened and closed by disassembling the sealing assembly 4. When disassembling for internal maintenance, the first sealing plate 401 is disassembled by removing the external fixing bolts connected to the positioning block 404. Subsequently, the first sealing plate 401 is slid laterally, and after the first sealing plate 401 and the second sealing plate 402 are disassembled, the second sealing plate 402 can be taken out or pulled out to achieve disassembly. Installation can be achieved by operating in the opposite manner.

[0067] In summary, the present invention is provided with an adjustment component, a fixing component and a sealing component. First, the sealing component seals the installation opening on the main body of the gearbox. The sealing component can be disassembled and assembled in sections. The cover of the split mechanism has a smaller volume than the cover of the integral structure, is convenient to carry, and is labor-saving to install, so the efficiency is higher. The fixing component can achieve two different forms of auxiliary fixation, and different forms of auxiliary fixation methods can be selected according to the use scenario, with strong applicability. Moreover, the whole fixing component can assist in fixing the main body of the gearbox, and is more stable during the installation and disassembly processes, improving the installation and disassembly efficiency and being easy to maintain. At the same time, the bottom plate is used in cooperation with the adjustment component to adjust the angle of the main body of the gearbox, so it is applicable to different installation scenarios. And during the angle adjustment process, the shaking generated by the main body of the gearbox can be reduced, the adjustment is stable, and the practicability is strong.

[0068] The present invention and its implementation manners are schematically described above. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

[0069] In addition, it should be understood that although this specification is described according to implementation manners, not every implementation manner only includes an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. An easy-to-maintain construction machinery gearbox, comprising a gearbox main body (1), and an installation opening (3) is arranged on the gearbox main body (1), characterized in that: A segmentally detachable sealing assembly (4) is provided inside the installation opening (3); A regulating assembly (5) for adjusting the installation direction is further connected to the bottom of the gearbox main body (1), and the gearbox main body (1) is connected to a bottom plate (2) through the regulating assembly (5). The bottom plate (2) can be received at the bottom of the gearbox main body (1), and a fixing assembly (7) with a variable fixing method is provided inside the bottom plate (2); The fixing assembly (7) includes an installation cavity opened inside the bottom plate (2). Two sliding rods are symmetrically arranged in the installation cavity, and an adjusting screw rod is arranged between the two sliding rods. Two screw sleeves (717) are symmetrically connected to the outside of the adjusting screw rod. One end of a connecting rod (714) is connected to both sides of a single screw sleeve (717), and the other end of the connecting rod (714) is slidably connected to a sliding rod (720). A plurality of push rods (702) extending outside the bottom plate (2) are arranged on the outside of the connecting rod (714), and a fixing side plate (701) is connected between the ends of the push rods (702); The adjusting screw rod is composed of a first screw rod (715) and a second screw rod (716) spliced together, and the thread directions on the outside of the first screw rod (715) and the second screw rod (716) are opposite. A rotating hole (718) is provided at one end of the first screw rod (715) away from the second screw rod (716), and a rotating rod (719) that can be inserted into the rotating hole (718) to rotate the adjusting screw rod is further provided outside the bottom plate (2); Extension mechanisms for adjusting the fixing method are provided at both ends of the fixing side plate (701); The extension mechanism includes receiving grooves (705) symmetrically opened on the outside of the fixing side plate (701). An auxiliary block (709) is arranged in the receiving grooves (705), and stabilizing blocks (710) are symmetrically arranged on both sides of the auxiliary block (709). A first return spring (711) is connected below the stabilizing blocks (710). Stabilizing grooves (708) are further arranged on both sides inside the receiving grooves (705), and the ends of the first return spring (711) are connected to the stabilizing grooves (708). Pressing and fixing mechanisms inserted into the stabilizing grooves (708) are further provided on the fixing side plate (701) on both sides of the receiving grooves (705); The pressing and fixing mechanism includes a pin rod (703), and pressing rods (704) symmetrically installed below the pin rod (703). The pressing rods (704) can be inserted into the stabilizing grooves (708) to abut against the stabilizing blocks (710). Lapping parts (707) are arranged on both sides of the upper opening of the receiving grooves (705), and pin holes (706) are arranged on the inner sides of the lapping parts (707); A second return spring (713) is arranged inside the pin rod (703), and one end of a protruding pin (712) is connected to both ends of the second return spring (713). The other end of the protruding pin (712) can be connected to the pin hole (706).

2. The easy-to-maintain construction machinery gearbox according to claim 1, characterized in that, The adjusting component (5) includes an adjusting base (501), a connecting column (502) installed on the adjusting base (501), and an adjusting slot (508) opened on the bottom plate (2) corresponding to the position of the adjusting base (501). An adjusting tooth (505) corresponding to the position of the adjusting slot (508) is arranged below the adjusting base (501). The adjusting tooth (505) can be adaptively connected to the adjusting slot (508). An active limiting mechanism is arranged on the adjusting tooth (505), and the active limiting mechanism can be connected to a gear position slot (509) opened in the adjusting slot (508). The adjusting base (501) is connected to an income cavity (510) arranged at the bottom of the gearbox through the connecting column (502). A blocking portion (503) is arranged at the top end of the connecting column (502). The blocking portion (503) is inside the income cavity (510). A compression spring (504) is sleeved outside the connecting column (502). A limiting portion (511) is arranged at the opening eaves of the income cavity (510) at the bottom of the gearbox, and the compression spring (504) can abut against the limiting portion (511).

3. The easy-to-maintain construction machinery gearbox according to claim 2, characterized in that, The shape of the adjusting tooth (505) is an arc tooth shape arranged obliquely. The number of the adjusting teeth (505) is several, and they are all rotationally arranged in a whole column with the center of the adjusting base (501) as the center. The shape and number of the adjusting slot (508) are adapted to the shape of the adjusting tooth (505). The active limiting mechanism includes an installation cavity opened on the outer arc of the adjusting tooth (505). One end of a third return spring (506) is arranged in the installation cavity. The other end of the third return spring (506) is connected to one end of an adjusting pin (507), and the other end of the adjusting pin (507) can be connected to the gear position slot (509).

4. An easy-to-maintain construction machinery gearbox according to claim 3, characterized in that, The number of the gear position slots (509) is several, and the angle of the gear position slots (509) is adapted to the angle of the adjusting slot (508).

5. An easy-to-maintain construction machinery gearbox according to claim 4, characterized in that, The sealing component (4) includes a first sealing plate (401) and a second sealing plate (402). The side surfaces of the mutually approaching ends of the first sealing plate (401) and the second sealing plate (402) are symmetrically arranged with splicing plates (403) in a mirror image manner. Splicing grooves (407) are arranged on the mutually approaching end faces of the first sealing plate (401) and the second sealing plate (402). The splicing plates (403) and the splicing grooves (407) are spliced together to form a whole. A pushing-in groove (8) is arranged at the installation opening (3). Positioning blocks (404) matching the pushing-in groove (8) are arranged on both sides of the first sealing plate (401). Fixing screw holes (405) are arranged at the end of the pushing-in groove (8) and inside the positioning blocks (404), and they can be fixedly connected through external bolts.

6. An easy-to-maintain construction machinery gearbox according to claim 5, characterized in that, Sealing strips (406) are arranged on the bottom surfaces of the first sealing plate (401) and the second sealing plate (402). A sealing groove (6) is arranged at the eaves of the installation opening (3), and the sealing strips (406) can be spliced and combined with the sealing groove (6) for sealing.

7. A method of using an easily maintainable construction machinery gearbox according to claim 6, characterized in that, The usage method includes the following steps: Step 1. During use, first determine the installation position of the gearbox body (1). Lift the gearbox body (1) to the installation area through an external hoisting device, and support the gearbox body (1) through the bottom plate (2). At this time, auxiliary positioning can be carried out through the fixing component (7). By inserting the rotating rod (719) into the inside of the bottom plate (2) and connecting it to the rotating hole (718) in the first screw rod (715) of the adjusting screw rod, by rotating the rotating rod (719), the entire adjusting screw rod is driven to rotate. The first screw rod (715) and the second screw rod (716) rotate stably. At the same time, the screw sleeves (717) connected to the outside of each of them will be driven to rotate. The connecting rods (714) on both sides of the screw sleeve (717) are slidably connected to the sliding rod (720) to limit the rotation of the screw sleeve (717). The screw sleeve (717) then moves on the outside of the adjusting screw rod, and at the same time the connecting rod (714) follows the sliding to drive the push rod (702) to move. And because the thread directions on the outside of the first screw rod (715) and the second screw rod (716) are opposite, opposite moving directions are realized. The push rod (702) will push out the fixed side plates (701) connected to each of them. This is a way of auxiliary positioning, which can support outward and assist in fixing; Step 2. Subsequently, if the installation area is not suitable for fixing by outward support, the fixing mechanism can work by pressing down. Press the pin rod (703), insert the pressing rods (704) at both ends below it into the stable grooves (708), contact the stable block (710), drive the first return spring (711) arranged at the lower end of the stable block (710) to contract, and at the same time the auxiliary block (709) is pressed down and extends out of the storage groove (705) to form an internal buckling tooth. And when the pin rod (703) is completely pressed into the lapping part (707), the convex pin (712) with a spherical end will stick to the outer edge of the lapping part (707). During the pressing process, the second return spring (713) in the pin rod (703) contracts. After entering the lapping part (707), the convex pin (712) rebounds and is pushed into the pin hole (706) to complete the positioning. Subsequently, the push rod (702) can be retracted by reversely rotating the rotating rod (719), driving the fixed side plate (701) to retract, and buckling the auxiliary block (709) at the connection to achieve the second way of auxiliary positioning and fixing; Step 3. Then, during installation and disassembly, when the angle of the gearbox body (1) needs to be adjusted, the gearbox body (1) can be pushed, and the adjustment assembly (5) at its bottom will work. The internal adjustment teeth (505) slide in the adjustment groove (508). At the same time, the adjustment teeth (505) move upward and rotate according to the shape of the adjustment groove (508). At the same time, the connecting column (502) rotates, and the shielding part rotates inside the receiving cavity (510). The upper end of the contraction spring (504) abuts against the inner side of the limiting part (511) and contracts while rotating, keeping the height always consistent and reducing the shaking situation. And during the rotation process, the movable limiting mechanism outside the adjustment teeth (505) moves accordingly. One end of the adjustment pin (507) arranged in its installation cavity fits and moves inside the adjustment groove (508). During this process, the third return spring (506) remains in a contracted state. When the adjustment teeth (505) are about to rotate out of the adjustment groove (508), the adjustment pin (507) will enter the gear position groove (509). Subsequently, the third return spring (506) releases force and pushes one end of the adjustment pin (507) into the gear position groove (509) to complete the positioning and angle adjustment; Step 4. Finally, during installation and disassembly, the installation opening (3) can be opened and closed by disassembling the sealing assembly (4). When disassembling for internal maintenance, the first sealing plate (401) is disassembled by removing the external fixing bolts connected to the positioning block (404). Subsequently, the first sealing plate (401) is slid laterally, and after disassembling the first sealing plate (401) and the second sealing plate (402), the second sealing plate (402) can be taken out or pulled out to achieve disassembly. Installation can be achieved by operating in the opposite way.

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