A high-power automatic crawler quick-release device

Abstract

The present invention belongs to the technical field of track vehicle maintenance tools, and specifically relates to a high-power automatic track quick-release device; it includes a cylinder support platform and a track support platform, a cylinder is installed on the cylinder support platform, a track support wall and an electric roller group are arranged on the track support platform; the cylinder is arranged horizontally, a push rod is connected to the cylinder rod of the cylinder, and the electric roller group and the track support wall are arranged front and back in sequence within the pushing range of the push rod; a notch is opened on the track support wall just in front of the push rod to allow the track pin to slide out; the cylinder is connected to the hydraulic system, and a displacement sensor is built into the cylinder, and the displacement sensor controls the reversal of the cylinder; the electric roller group carries the track and advances forward by the length of one section of the track, and the cylinder completes a pushing and resetting action. The present invention develops a brand-new track quick-release device structure, on which an electric roller group is arranged, and the whole system realizes automatic control, realizes track posture correction and automatic stepping, and can save workers' labor time and labor intensity.

Description

Technical Field

[0001] The invention belongs to the technical field of tracked vehicle maintenance tools, and in particular relates to a high-power automatic track quick-release device. Background Art

[0002] From the 1980s to the present, domestic and foreign engineering machinery technology has gradually moved from maturity to modernization. Among the engineering machinery maintenance business, track maintenance is the most time-consuming and labor-intensive work, accounting for about 30% of the component repair time, especially the disassembly of the track chain. Due to the long-term use of the equipment, a large number of track pins are bent and deformed, and disassembly is extremely difficult. Even manually disassembling a track plate sometimes takes more than 1 hour, which seriously restricts the progress of equipment maintenance. In order to solve the most time-consuming and labor-intensive track disassembly work during the maintenance of crawler walking machinery, greatly reduce the labor intensity of workers, greatly liberate labor, and reduce the maintenance cycle of the whole machine, it is urgently needed to develop a set of high-power automatic track quick-disassembly devices to achieve the reduction of manpower and increase efficiency in engineering machinery maintenance. Summary of the invention

[0003] The object of the present invention is to provide a high-power automatic track quick-release device, which realizes the automatic disassembly of the track plate pin shaft by driving an oil cylinder and related fixing devices.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a high-power automatic crawler quick-release device, including a cylinder support platform and a crawler support platform, a cylinder is installed on the table top of the cylinder support platform, a crawler support wall and an electric roller group are arranged on the crawler support platform, and the electric roller group is embedded in the table top of the crawler support platform; the cylinder is horizontally arranged, and a push rod extending along its axial direction is connected to the cylinder rod of the cylinder, the electric roller group and the crawler support wall are arranged in sequence front and back within the pushing range of the push rod, and the transmission direction of the electric roller group is perpendicular to the push rod; the crawler support wall is parallel to the transmission direction of the electric roller group, and a notch is opened on the crawler support wall just in front of the push rod to allow the crawler pin shaft to slide out; the cylinder is connected to the hydraulic system, and a displacement sensor is built in the cylinder, and the displacement sensor controls the reversing of the cylinder; the electric roller group carries the crawler forward by the length of a crawler section, and the cylinder completes a pushing and resetting action.

[0005] Furthermore, two track limiting assemblies are arranged on the track supporting platform, and the two track limiting assemblies are respectively arranged on the head and tail ends of the electric roller group. The track limiting assembly includes a low-speed motor fixed on the table top of the track supporting platform, the rotating shaft of the low-speed motor is upright, and a horizontal baffle bar is connected to the rotating shaft, and the horizontal baffle bar is located above the electric roller group to limit the track from jumping up, and an angle sensor is arranged on the horizontal baffle bar; a pressure sensor is installed under the track supporting platform, and the pressure sensor determines whether the track is placed on the track supporting platform, and then controls the start and stop of the low-speed motor.

[0006] Furthermore, the hydraulic system includes an oil tank, an oil inlet circuit, an oil return circuit, and a cooling oil circuit. A heater is provided in the oil tank, and a liquid level and temperature gauge, a respirator, and an oil unloading ball valve are installed on the tank body. A terminal box is provided outside the oil tank; the cooling oil circuit includes a No. 1 one-way valve, an oil return filter, an air cooler, a cooling pump, a No. 1 shock absorber throat, a No. 1 oil suction filter, and a No. 1 low-pressure ball valve connected in sequence through pipelines. The cooling pump is connected to the cooling motor, and both ends of the cooling oil circuit are connected to the oil tank; the oil inlet circuit includes a No. 2 low-pressure ball valve, a No. 2 oil suction filter, a No. 2 shock absorber throat, a No. 2 one-way valve, a main oil pump, a high-pressure filter, and two parallel two-position three-way solenoid reversing valves connected in sequence from the oil tank. The main oil pump is connected to the main pump motor, and the return oil circuit is connected to the return oil filter from the two two-position three-way solenoid reversing valves, and then the return oil filter is connected to the oil tank, and an overflow valve is connected between the two two-position three-way solenoid reversing valves.

[0007] Furthermore, a guide plate is provided on the track support platform at the notch of the track support wall along the sliding out direction of the track pin shaft.

[0008] Furthermore, a stopper is provided on the crawler support platform, and the stopper is located in front of the swing path of the horizontal stopper bar, and the stopper bar limits the horizontal stopper bar from extending out from the width range of the crawler support platform.

[0009] Furthermore, a fixed ear bracket and a cylinder mounting groove are arranged on the table surface of the oil cylinder support table, the cylinder barrel of the oil cylinder is nested in the cylinder mounting groove, the ear plate at the rear of the cylinder barrel is connected to the fixed ear bracket through a pin shaft, and the top surface of the cylinder barrel is tightly clamped with a cylinder guard (8), and the two side flanges of the cylinder guard are connected to the cylinder mounting groove through bolts.

[0010] Compared with the prior art, the advantages of the present invention are:

[0011] The high-power automatic crawler quick-release device of the present invention uses a hydraulic system as the main power source, and drives the oil cylinder through high-pressure oil to achieve high-power crawler removal. The maximum ejection pressure can reach 20Mpa; the hydraulic power source has a compact structure, a large output flow rate, and a large pressure adjustment range.

[0012] A new crawler quick-release device structure has been developed, which is equipped with an electric roller group to achieve crawler posture correction and automatic stepping, which can save workers' labor time and labor intensity. The entire system is automatically controlled. It can realize automatic fixing, automatic limiting, automatic posture adjustment, and automatic disassembly of the crawler.

[0013] The high-power automatic crawler quick-release device has the advantages of compact structure, high strength, wide application and multi-functionality. It can be used for the removal of engineering machinery track plates of various models, specifications and sizes and different structural forms; it can improve the maintenance efficiency of crawler walking equipment, reduce the labor intensity of workers and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a structural schematic diagram of the track limiting assembly.

[0016] Figure 3 This is the schematic diagram of the hydraulic system.

[0017] In the figure: 1-Cylinder support platform; 1.1-Pin shaft; 1.2-Bolt; 1.3-Cylinder mounting groove; 1.4-Fixed ear bracket; 2-Track support platform; 2.1-Pressure sensor; 2.2-Block; 2.3-Angle sensor; 2.4-Guide plate; 3-Horizontal baffle; 4-Electric roller group; 5-Low speed motor; 5.1-Motor fixing bolt; 5.2-Spline; 6-Push rod; 7-Cylinder; 7.1-Displacement sensor; 8-Cylinder shield; 9-Hydraulic system; 9.1-Oil tank; 9.2-Liquid level and temperature gauge; 9.3-Heater; 9.4-Respirator; 9.5-Return oil filter; 9.6- Liquid level and temperature gauge; 9.7-oil unloading ball valve; 9.8-terminal box; 9.9-No. 1 low-pressure ball valve; 9.10-No. 1 oil suction filter; 9.11-No. 1 shock absorber throat; 9.12-cooling motor; 9.13-cooling pump; 9.14-air cooler; 9.15-main oil pump; 9.16-main pump motor; 9.17-overflow valve; 9.18-high-pressure filter; 9.19-two-position three-way solenoid reversing valve; 9.20-No. 2 low-pressure ball valve; 9.21-No. 2 oil suction filter; 9.22-No. 2 shock absorber throat; 9.23-No. 2 check valve; 10-track support wall; 10.1-gap. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] like Figure 1As shown; a high-power automatic crawler quick-release device includes a cylinder support platform 1 and a crawler support platform 2, a cylinder 7 is installed on the surface of the cylinder support platform 1, a crawler support wall 10 and an electric roller group 4 are arranged on the crawler support platform 2, and the electric roller group 4 is embedded in the surface of the crawler support platform 2. The cylinder 7 is arranged horizontally, and a push rod 6 extending along its axial direction is connected to the cylinder rod of the cylinder 7. The push rod 6 and the cylinder rod of the cylinder 7 are detachably connected, and the push rod 6 can be replaced according to crawler plates of different specifications. The electric roller group 4 and the crawler support wall are arranged in sequence front and back within the pushing range of the push rod 6, and the transmission direction of the electric roller group 4 is perpendicular to the push rod 6; the crawler support wall 10 is parallel to the transmission direction of the electric roller group 4. A notch 10.1 is opened on the crawler support wall 10 just in front of the push rod 6 to allow the crawler pin to slide out. The oil cylinder 7 is connected to the hydraulic system 9. A displacement sensor 7.1 is built in the oil cylinder 7. The displacement sensor 7.1 controls the reversal of the oil cylinder 7. The displacement sensor 7.1 detects the displacement signal and automatically switches the two-position three-way electromagnetic reversing valve 9.19 to activate the oil cylinder 7. The electric roller group 4 carries the crawler forward by the length of one crawler section. The oil cylinder 7 completes a pushing and resetting action, and the cycle is repeated to complete the disassembly of the crawler.

[0020] like Figure 2 As shown; two track limit assemblies are arranged on the track support platform 2, and the two track limit assemblies are arranged at the head and tail ends of the electric roller group 4 respectively. The track limit assembly includes a low-speed motor 5 fixed on the table of the track support platform 2, and the low-speed motor 5 is fixed on the track support platform 2 through a motor fixing bolt 5.1. The rotating shaft of the low-speed motor 5 is vertical, and a horizontal blocking rod 3 is connected to the rotating shaft. The horizontal blocking rod 3 and the rotating shaft of the low-speed motor 5 are connected through a spline 5.2. The horizontal blocking rod 3 is located above the electric roller group 4 to limit the track from jumping up. The horizontal blocking rod 3 is provided with an angle sensor 2.3. The track is placed flat on the electric roller group 4, and the horizontal blocking rod 3 sweeps over the top surface of the track and stays at the disassembly position of the track pin shaft to prevent the two adjacent track plates from jumping up when the push rod 6 pushes the track pin shaft; a pressure sensor 2.1 is installed under the track support platform 2, and the pressure sensor 2.1 determines whether the track is placed on the track support platform 2, and then controls the start and stop of the low-speed motor 5.

[0021] like Figure 3As shown; the hydraulic system includes an oil tank 9.1, an oil inlet circuit, an oil return circuit, and a cooling oil circuit. A heater 9.3 is arranged in the oil tank 9.1. A liquid level and temperature gauge 9.2, a respirator 9.4, and an oil unloading ball valve 9.7 are installed on the box body of the oil tank 9.1. A terminal box 9.8 is arranged outside the oil tank 9.1; the cooling oil circuit includes a No. 1 check valve 9.6, an oil return filter 9.5, an air cooler 9.14, a cooling pump 9.13, a No. 1 shock absorber throat 9.11, a No. 1 oil suction filter 9.10, and a No. 1 low-pressure ball valve 9.9, which are connected in sequence through pipelines. The cooling pump 9.13 is connected to the cooling motor 9.12, and both ends of the cooling oil circuit are connected to the oil tank 9.1. The oil inlet circuit includes the No. 2 low-pressure ball valve 9.20, the No. 2 oil suction filter 9.21, the No. 2 shock absorber throat 9.22, the No. 2 check valve 9.23, the main oil pump 9.15, the high-pressure filter 9.18, and two two-position three-way electromagnetic reversing valves 9.19 connected in parallel from the oil tank 9.1. The main oil pump 9.15 is connected to the main pump motor 9.16. The return oil circuit is connected from the two two-position three-way electromagnetic reversing valves 9.19 to the return oil filter 9.5, and then the return oil filter 9.5 is connected to the oil tank 9.1. The overflow valve 9.17 is connected between the two two-position three-way electromagnetic reversing valves 9.19.

[0022] The level and temperature gauge 9.2 monitors the level and temperature of the oil tank 9.1; the heater 9.3 heats the hydraulic oil; the respirator 9.4 filters the air entering the oil tank; the return oil filter 9.5 filters and cleans the return oil; the one-way valve realizes the one-way flow of the oil in the system; the oil unloading ball valve 9.7 discharges the oil in the oil tank; the wiring of the electrical control part of the system is connected through the terminal box 9.8; the low-pressure ball valve realizes the on-off function of the oil suction in the hydraulic system; the oil suction filter filters and cleans the oil suction in the system; the shock absorber throat is used to reduce system vibration and pressure pulsation; the hydraulic system 9 is equipped with an independent cooling system, and the cooling motor 9.12 drives the cooling pump 9.13, and the circulating system oil enters the air cooler 9.14 to cool the system. The overflow valve 9.17 sets the maximum working pressure of the system to 20Mpa and is used as a system safety valve.

[0023] A guide plate 2.4 is provided on the crawler support platform 2 at the notch 10.1 of the crawler support wall 10 along the sliding direction of the crawler pin. The removed crawler pin slides down into the centralized storage box along the guide plate 2.4.

[0024] A stopper 2.2 is provided on the crawler support platform 2. The stopper 2.2 is located in front of the swing path of the horizontal stopper 3. The stopper 2.2 limits the horizontal stopper 3 from extending out from the width range of the crawler support platform 2.

[0025] A fixed ear bracket 1.4 and a cylinder mounting groove 1.3 are provided on the surface of the cylinder support platform 1. The cylinder barrel of the cylinder 7 is nested in the cylinder mounting groove 1.3. The ear plate at the rear of the cylinder barrel is connected to the fixed ear bracket 1.4 through a pin shaft 1.1. The top surface of the cylinder barrel is tightly clamped with a cylinder guard 8. The flanges on both sides of the cylinder guard 8 are connected to the cylinder mounting groove 1.3 through bolts 1.2.

[0026] Place the track to be repaired flat on the electric roller group 4 of the track support platform 2, align manually to achieve posture adjustment, and realize the alignment of the first hole. When the track to be repaired is placed on the track support platform 2, the pressure sensor 2.1 on the track support platform 2 detects the pressure signal and transmits the signal to the two low-speed motors 5. The two low-speed motors 5 drive the horizontal blocking rod 3 to rotate. When the horizontal blocking rod 3 rotates to the set angle, the angle sensor 2.3 detects the angle signal and transmits the signal to the two low-speed motors 5 and the main pump motor 9.16 in the hydraulic system 9. At this time, the two low-speed motors 5 are turned off, and the main pump motor 9.16 is started, so that the oil cylinder 7 can be ejected. When the oil cylinder is ejected to the set stroke, the displacement sensor 7.1 in the oil cylinder detects the displacement signal and transmits the signal to the two-position three-way electromagnetic reversing valve 9.19 in the hydraulic system 9. The electromagnetic reversing valve is reversed to make the oil cylinder 7 retract. When the displacement sensor 7.1 in the oil cylinder detects that the oil cylinder has retracted to the set displacement, the displacement sensor 7.1 in the oil cylinder transmits the signal to the electric roller group 4. The electric roller group 4 realizes the stepping of the track after the track pin is disassembled. By adding a counter in the electrical logic control, the number of circles of the electric roller group 4 for the track to advance one track section is calculated in advance, so that the electric roller group automatically rolls a certain number of circles, so that the next disassembly hole position of the track is automatically aligned with the push rod 6, and enters the next disassembly working position.

[0027] The above actions are controlled by electrical logic to achieve three modes: fully automatic, semi-automatic, and fully manual. In the fully automatic mode, the fixing and removal of the track plate are fully automated. After the track plate is fixed, there is a delay of 3 to 5 seconds to reserve time for adjusting the posture of the first hole of the track plate. After completing one ejection station, the electric roller group automatically rotates (rotates the length of one section of the track plate) to achieve automatic alignment of the next hole and enter the next disassembly station. In the semi-automatic mode, the fixing of the track plate is automatically controlled, and the removal of the track plate is semi-automatically controlled. After the track plate is automatically fixed, press the control button manually to realize the track plate removal action. After completing one ejection station, adjust the track plate posture, press the control button again, and enter the next station. In the fully manual mode, the fixing and removal of the track plate are all manually controlled and are standby.

[0028] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-power automatic crawler quick-release device, characterized in that: The invention comprises a cylinder support platform (1) and a crawler support platform (2); a cylinder (7) is installed on the surface of the cylinder support platform (1); a crawler support wall (10) and an electric roller group (4) are arranged on the crawler support platform (2); the electric roller group (4) is embedded in the surface of the crawler support platform (2); the cylinder (7) is arranged horizontally; a push rod (6) extending along the axial direction of the cylinder (7) is connected to the cylinder rod of the cylinder (7); the electric roller group (4) and the crawler support wall are arranged in sequence front and back within the pushing range of the push rod (6); the electric roller group (4) The transmission direction of the crawler track support wall (10) is perpendicular to the push rod (6); the crawler track support wall (10) is parallel to the transmission direction of the electric roller group (4); a notch (10.1) is provided on the crawler track support wall (10) just in front of the push rod (6) to allow the crawler track pin to slide out; the oil cylinder (7) is connected to the hydraulic system (9); a displacement sensor (7.1) is built into the oil cylinder (7); the displacement sensor (7.1) controls the reversing of the oil cylinder (7); the electric roller group (4) carries the crawler track and advances forward by the length of one crawler track section, and the oil cylinder (7) completes a pushing and resetting action; The hydraulic system comprises an oil tank (9.1), an oil inlet oil circuit, an oil return oil circuit, and a cooling oil circuit. A heater (9.3) is arranged in the oil tank (9.1). A liquid level and temperature gauge (9.2), a respirator (9.4), and an oil unloading ball valve (9.7) are installed on the box body of the oil tank (9.1). A wiring terminal box (9.8) is arranged outside the oil tank (9.1). The cooling oil circuit comprises a No. 1 check valve (9.6), an oil return filter (9.5), an air cooler (9.14), a cooling pump (9.13), a No. 1 shock absorber throat (9.11), a No. 1 oil suction filter (9.10), and a No. 1 low-pressure ball valve (9.9) which are connected in sequence through pipelines. The cooling pump (9.13) is connected to a cooling motor (9.12). Both ends of the cooling oil circuit Both are connected to the oil tank (9.1); the oil inlet oil circuit includes a No. 2 low-pressure ball valve (9.20), a No. 2 oil suction filter (9.21), a No. 2 shock absorber throat (9.22), a No. 2 check valve (9.23), a main oil pump (9.15), a high-pressure filter (9.18), and two two-position three-way electromagnetic reversing valves (9.19) connected in parallel from the oil tank (9.1); the main oil pump (9.15) is connected to the main pump motor (9.16); the return oil circuit is connected from the two two-position three-way electromagnetic reversing valves (9.19) to the return oil filter (9.5), and then the return oil filter (9.5) is connected to the oil tank (9.1); an overflow valve (9.17) is connected between the two two-position three-way electromagnetic reversing valves (9.19).

2. A high-power automatic crawler quick-release device according to claim 1, characterized in that: The crawler support platform (2) is provided with two crawler limit assemblies, which are respectively arranged at the front and rear ends of the electric roller group (4), and the crawler limit assemblies include a low-speed motor (5) fixed on the table surface of the crawler support platform (2), the rotating shaft of the low-speed motor (5) is vertical, and a horizontal stop bar (3) is connected to the rotating shaft, the horizontal stop bar (3) is located above the electric roller group (4) to limit the crawler track from jumping up, and an angle sensor (2.3) is arranged on the horizontal stop bar (3); a pressure sensor (2.1) is installed under the crawler support platform (2), and the pressure sensor (2.1) determines whether a crawler track is placed on the crawler support platform (2), thereby controlling the start and stop of the low-speed motor (5).

3. The high-power automatic crawler quick-release device according to claim 1, characterized in that: A guide plate (2.4) is provided on the track support platform (2) at the notch (10.1) of the track support wall (10) along the sliding out direction of the track pin shaft.

4. The high-power automatic crawler quick-release device according to claim 2, characterized in that: A stopper (2.2) is provided on the crawler support platform (2), the stopper (2.2) being located in front of the swing path of the horizontal stopper (3), and the stopper (2.2) restricts the horizontal stopper (3) from extending out from within the width range of the crawler support platform (2).

5. The high-power automatic crawler quick-release device according to claim 1, characterized in that: A fixed ear frame (1.4) and a cylinder mounting groove (1.3) are arranged on the table surface of the oil cylinder support table (1); the cylinder barrel of the oil cylinder (7) is nested in the cylinder mounting groove (1.3); the ear plate at the rear of the cylinder barrel is connected to the fixed ear frame (1.4) via a pin shaft (1.1); a cylinder guard (8) is tightly clamped on the top surface of the cylinder barrel; and the two side flanges of the cylinder guard (8) are connected to the cylinder mounting groove (1.3) via bolts (1.2).

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