Adjustable angle control device for scraper blade of crawler loader

Abstract

The utility model relates to the technical field of slag raking machines, in particular to an adjustable slag raking machine scraper angle control device which comprises a rack and a scraper arranged on the rack. An output shaft of the motor is coaxially provided with a worm meshed with the worm gear, and the worm gear and the worm are both arranged in the transmission box. The transmission case communicates with a lubricating mechanism, and the lubricating mechanism comprises an oil barrel, an oil spraying assembly and a recycling assembly. Lubricating operation can be completed without dismounting the transmission case, and time and labor are saved. Meanwhile, waste of lubricating oil is avoided, impurities can be filtered out, the cleanliness of the lubricating oil is guaranteed, next oil injection maintenance is facilitated, and the maintenance efficiency of the scraper angle control device is improved. When impurities intercepted by the filter screen are accumulated to a certain degree, the impurities can be cleaned by removing the bottom cover, normal work of the recovery assembly is guaranteed, the service life of the device is prolonged, and maintenance cost is reduced.

Description

Technical Field

[0001] This application relates to the technical field of muck loaders, and in particular to an adjustable muck loader scraper angle control device. Background Technology

[0002] Slag removers are widely used in metallurgy, mining, and other industries to remove slag and other waste. During slag removal, the angle of the scraper needs to be adjusted according to the actual working conditions to ensure effective removal. Currently, most adjustable slag remover scraper angle control devices use a worm gear mechanism for angle adjustment. However, lubricating the worm gear often requires removing the sealing housing, which is cumbersome, time-consuming, and labor-intensive, thus affecting production efficiency.

[0003] A search revealed Chinese Patent Publication No. CN222758973U, which discloses a slag remover, comprising a base plate, support rods, an adjustment assembly, uprights, a drive assembly, a support assembly, and wheels. Support rods are fixedly connected to both sides of the upper rear portion of the base plate, and an adjustment assembly for controlling the height of the conveying mechanism is installed inside the support rods. Uprights are fixedly connected to both sides of the upper front portion of the base plate, and a drive assembly is installed on the side of the uprights that are close to each other. A support assembly is installed in the middle of the upper portion of the base plate, and wheels are rotatably connected to both sides of the base plate at the front and rear.

[0004] Regarding the aforementioned related technologies, the inventors have discovered the following drawbacks: In the prior art, the scraper angle adjustment mechanism is usually sealed to avoid dust adhesion and increased wear, which requires the machine cover to be removed during the maintenance of the angle adjustment mechanism, thus making the maintenance of the angle adjustment mechanism difficult. In order to solve the problem of low maintenance efficiency of the angle adjustment mechanism in the prior art, this application sprays lubricating oil onto the adjustment mechanism, thereby completing the lubrication of the adjustment mechanism without opening the machine cover, thus achieving the purpose of improving maintenance efficiency. Utility Model Content

[0005] To facilitate the maintenance and upkeep of the scraper angle adjustment mechanism, this application provides an adjustable scraper angle control device for a muck loader.

[0006] This application provides an adjustable scraper angle control device for a muck loader, employing the following technical solution: An adjustable scraper angle control device for a muck loader includes a frame and a scraper mounted on the frame. A rotating shaft is fixedly mounted on the frame, and a rotating seat is mounted on the scraper. The scraper is rotatably connected to the frame via the rotating seat and the rotating shaft. The rotating seat is connected to a transmission mechanism. The transmission mechanism includes a transmission box, a worm gear coaxially fixedly connected to the rotating seat, and a motor fixedly mounted on the frame. A worm coaxially mounted on the output shaft of the motor meshes with the worm gear. Both the worm gear and the worm are housed within the transmission box. The transmission box is connected to a lubrication mechanism, which includes an oil tank, an oil spraying assembly, and a recovery assembly. The worm gear is driven to rotate by the worm, thereby adjusting the scraper angle. The oil spraying assembly sprays oil onto the worm gear for maintenance. The recovery assembly recovers and filters excess lubricating oil for subsequent oil spraying maintenance.

[0007] Optionally, the oil injection assembly includes a first piston cylinder communicating with the oil tank and the transmission box, and a matching first piston rod is slidably connected inside the first piston cylinder; the first piston cylinder draws in the lubricating oil from the oil tank and sprays it into the transmission box.

[0008] Optionally, the first piston cylinder is connected to the oil tank via a first check valve, and the first piston cylinder is connected to the transmission box via a second check valve; the first check valve and the second check valve open alternately to facilitate the operation of the first piston cylinder.

[0009] Optionally, the recycling assembly includes a second piston cylinder communicating with the oil drum and the transmission box, and a matching second piston rod is slidably connected inside the second piston cylinder, the second piston rod being fixedly connected to the first piston rod.

[0010] Optionally, the second piston cylinder is connected to the oil tank via a third check valve, and the second piston cylinder is connected to the transmission box via a fourth check valve; the third check valve and the fourth check valve open alternately to facilitate the operation of the second piston cylinder.

[0011] Optionally, a filter screen is provided at the connection between the third one-way valve and the oil drum, and the filter screen removes impurities from the lubricating oil that enters the oil drum from the second piston cylinder.

[0012] Optionally, the bottom cover of the second piston cylinder can be detached for easy cleaning and maintenance.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. The oil injection assembly of this utility model utilizes the cooperation of the first piston cylinder and the first piston rod to draw lubricating oil from the oil tank using negative pressure, and then injects it into the transmission box, thereby achieving oil injection maintenance for the worm gear. The setting of the first one-way valve and the second one-way valve ensures unidirectional flow of lubricating oil, allowing the oil injection process to proceed smoothly. Lubrication can be completed without removing the transmission box, saving time and manpower.

[0015] 2. The second piston cylinder of the recovery component of this utility model draws in excess lubricating oil from the transmission box, filters it through the filter screen at the third one-way valve, and then injects it into the oil tank. This not only avoids the waste of lubricating oil, but also filters out impurities, ensuring the cleanliness of the lubricating oil, facilitating the next oil spraying maintenance, and improving the maintenance efficiency of the scraper angle control device.

[0016] 3. The bottom cover of the second piston cylinder of this utility model is removable, which facilitates cleaning and maintenance. When the impurities intercepted by the filter screen accumulate to a certain extent, the bottom cover can be removed to clean the impurities, ensuring the normal operation of the recovery component, extending the service life of the device, and reducing maintenance costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the lubrication mechanism in an embodiment of this application;

[0019] Figure 3 This is a cross-sectional structural schematic diagram of the lubrication mechanism in the embodiments of this application;

[0020] Figure 4 This is a schematic diagram of the connection relationship between the frame and the scraper in an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the connection relationship between the worm gear and the rotating seat in this utility model;

[0022] Figure 6 This is a schematic diagram showing the positional relationship of the filter screen in this utility model.

[0023] Reference numerals in the attached drawings: 1. Frame; 2. Scraper; 3. Rotating shaft; 4. Rotating seat; 5. Transmission box; 6. Worm gear; 7. Motor; 8. Worm; 9. Oil tank; 10. First piston cylinder; 11. First piston rod; 12. First check valve; 13. Second check valve; 14. Second piston cylinder; 15. Second piston rod; 16. Third check valve; 17. Fourth check valve; 18. Filter screen; 19. Bottom cover. Detailed Implementation

[0024] The following is in conjunction with the appendix Figures 1-6This application will be further described in detail below. The technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0025] This application discloses an adjustable scraper angle control device for a muck loader. For example... Figure 1 As shown, the device includes a frame 1 and a scraper 2 mounted on the frame 1. A rotating shaft 3 is fixedly mounted on the frame 1, and a rotating seat 4 is mounted on the scraper 2. The scraper 2 is rotatably connected to the frame 1 via the rotating seat 4 and the rotating shaft 3. A transmission mechanism is connected to the rotating seat 4. The transmission mechanism includes a transmission box 5, a worm gear 6 coaxially fixedly connected to the rotating seat 4, and a motor 7 fixedly mounted on the frame 1. A worm 8 that meshes with the worm gear 6 is coaxially mounted on the output shaft of the motor 7. Both the worm gear 6 and the worm 8 are located inside the transmission box 5. A lubrication mechanism is connected to the transmission box 5. The lubrication mechanism includes an oil tank 9, an oil spraying assembly, and a recovery assembly.

[0026] In this embodiment, the worm gear 8 is driven to rotate by the motor 7, and the worm gear 8 meshes with and drives the worm wheel 6 to rotate. The worm wheel 6 drives the scraper 2 to rotate through the rotating seat 4 and with the axis of the rotating shaft 3 as the center, thereby completing the angle adjustment of the cover plate. The oil spraying component of the lubrication mechanism sprays the lubricating oil in the oil tank 9 onto the worm wheel 6 and worm gear 8 in the transmission box 5. The recovery component can filter and recover the lubricating oil in the transmission box 5 without opening the transmission box 5, thereby improving the maintenance efficiency of the scraper 2 angle control device.

[0027] Please see Figure 3 In this utility model, the oil injection assembly includes a first piston cylinder 10 that communicates with the oil tank 9 and the transmission box 5, and a matching first piston rod 11 is slidably connected inside the first piston cylinder 10.

[0028] In this embodiment, the upward movement of the first piston rod 11 creates a negative pressure inside the first piston cylinder 10, drawing oil from the oil drum 9 into the first piston cylinder 10; the downward movement of the first piston rod 11 injects the oil from the first piston cylinder 10 into the transmission box 5, lubricating the worm gear 6 and worm 8 inside the transmission box 5.

[0029] Please see Figure 2 In this utility model, the first piston cylinder 10 is connected to the oil drum 9 through the first one-way valve 12, and the first piston cylinder 10 is connected to the transmission box 5 through the second one-way valve 13.

[0030] In this embodiment, when the first piston cylinder 10 draws lubricating oil from the oil tank 9, the first one-way valve 12 opens and the second one-way valve 13 closes; when the first piston cylinder 10 sprays lubricating oil into the transmission box 5, the first one-way valve 12 closes and the second one-way valve 13 opens.

[0031] Please see Figure 2 In this utility model, the recycling component includes a second piston cylinder 14 that communicates with the oil drum 9 and the transmission box 5. A matching second piston rod 15 is slidably connected inside the second piston cylinder 14. The second piston rod 15 is fixedly connected to the first piston rod 11.

[0032] In this embodiment, when the first piston rod 11 moves upward, it drives the second piston rod 15 to move upward synchronously, thereby generating a negative pressure in the second piston cylinder 14, which in turn draws the lubricating oil in the transmission box 5 into the second piston cylinder 14; when the first piston rod 11 moves upward, it drives the second piston rod 15 to move downward synchronously, thereby injecting the lubricating oil in the second piston cylinder 14 into the oil tank 9.

[0033] Please see Figure 2 In this utility model, the second piston cylinder 14 is connected to the oil drum 9 through the third one-way valve 16, and the second piston cylinder 14 is connected to the transmission box 5 through the fourth one-way valve 17.

[0034] In this embodiment, when the second piston cylinder 14 draws lubricating oil from the transmission box 5, the third check valve 16 closes and the fourth check valve 17 opens; when the second piston cylinder 14 injects lubricating oil into the oil tank 9, the third check valve 16 opens and the fourth check valve 17 closes.

[0035] Please see Figure 6 In this utility model, a filter screen 18 is provided at the connection between the third one-way valve 16 and the oil drum 9;

[0036] In this embodiment, the filter screen 18 can filter the lubricating oil in the transmission box 5 before injecting it into the oil drum 9, and the filter screen 18 can block impurities in the lubricating oil into the second piston cylinder 14.

[0037] Please see Figure 6 In this utility model, the bottom cover 19 of the second piston cylinder 14 is detachable;

[0038] In this embodiment, when maintenance is required, the impurities filtered out of the lubricating oil can be cleaned by removing the bottom cover 19.

[0039] The implementation principle of the adjustable scraper angle control device for a slag remover according to an embodiment of this application is as follows:

[0040] When angle adjustment is required, the worm 8 is driven to rotate by the motor 7. The worm 8 meshes with and drives the worm wheel 6 to rotate. The worm wheel 6 drives the scraper 2 to rotate through the rotating seat 4 and with the axis of the rotating shaft 3 as the center, thereby completing the angle adjustment of the cover plate.

[0041] When the first piston rod 11 and the second piston rod 15 move upward, the first one-way valve 12 and the fourth one-way valve 17 open, and the second one-way valve 13 and the third one-way valve 16 close. The negative pressure causes negative pressure to be generated in both the first piston cylinder 10 and the second piston cylinder 14, thereby allowing the lubricating oil in the oil drum 9 to enter the first piston cylinder 10 and the lubricating oil in the transmission box 5 to enter the second piston cylinder 14.

[0042] When the first piston rod 11 and the second piston rod 15 move downwards, the second check valve 13 and the third check valve 16 open, and the first check valve 12 and the fourth check valve 17 close. The lubricating oil in the first piston cylinder 10 is injected into the transmission box 5 under pressure and sprayed onto the worm gear 6 and the worm 8. The lubricating oil in the second piston cylinder 14 is filtered by the filter screen 18 under pressure and then injected into the oil tank 9. The filter screen 18 removes impurities from the lubricating oil and leaves the impurities in the second piston cylinder 14.

[0043] When it is necessary to clean the impurities inside the second piston cylinder 14, simply open the bottom cover 19 of the second piston cylinder 14.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustable scraper angle control device for a muck loader, comprising a frame and a scraper mounted on the frame, characterized in that: A rotating shaft is fixedly mounted on the frame, and a rotating seat is mounted on the scraper. The scraper is rotatably connected to the frame via the rotating seat and the rotating shaft. The rotating seat is connected to a transmission mechanism. The transmission mechanism includes a transmission box, a worm gear fixedly connected coaxially to the rotating seat, and a motor fixedly mounted on the frame. A worm gear meshing with the worm gear is coaxially mounted on the output shaft of the motor. Both the worm gear and the worm gear are located inside the transmission box. The transmission box is connected to a lubrication mechanism, which includes an oil tank, an oil spraying assembly, and a recovery assembly.

2. The adjustable scraper angle control device for a muck loader according to claim 1, characterized in that: The oil injection assembly includes a first piston cylinder that communicates with the oil tank and the transmission box, and a matching first piston rod is slidably connected inside the first piston cylinder.

3. The adjustable scraper angle control device for a muck loader according to claim 2, characterized in that: The first piston cylinder is connected to the oil drum through a first check valve, and the first piston cylinder is connected to the transmission box through a second check valve.

4. The adjustable scraper angle control device for a muck loader according to claim 1, characterized in that: The recycling assembly includes a second piston cylinder that communicates with the oil drum and the transmission box. A matching second piston rod is slidably connected inside the second piston cylinder, and the second piston rod is fixedly connected to the first piston rod.

5. The adjustable scraper angle control device for a muck loader according to claim 4, characterized in that: The second piston cylinder is connected to the oil drum through a third check valve, and the second piston cylinder is connected to the transmission box through a fourth check valve.

6. The adjustable scraper angle control device for a muck loader according to claim 5, characterized in that: A filter screen is installed at the connection point between the third check valve and the oil drum.

7. The adjustable scraper angle control device for a muck loader according to claim 5, characterized in that: The bottom cover of the second piston cylinder is detachable.

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