Debugging frame for debugging hydraulic power-assisted oil cylinder of speed change mechanism of tracked vehicle

Abstract

The utility model provides a debugging frame for debugging a hydraulic power-assisted oil cylinder of a speed change mechanism of a crawler, which is applied to the technical field of maintenance and debugging of the crawler and is characterized by comprising a debugging base and a swing frame, the swing frame is arranged on the debugging base, and the speed change mechanism is fixedly mounted on the swing frame; a first pin hole is formed in the debugging base, and a second pin hole is formed in the swing frame; when the plug pins are inserted into the first pin holes and the second pin holes, the swing frame is vertically fixed to the debugging base. When the plug pin is pulled out of the second pin hole, the swing frame is rotationally connected to the debugging base. The limiting pin is installed on the debugging base in a pluggable mode and used for limiting the swing frame to rotate by 90 degrees; the technical effects are that the device can directly test the adjusted speed change mechanism, the speed change mechanism does not need to be installed to the original position for testing, the maintenance time is greatly saved, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance and debugging of crawler vehicles, in particular to a debugging frame for debugging a hydraulic booster oil cylinder of a speed changing mechanism of a crawler vehicle. Background Art

[0002] The speed change mechanism of a certain type of tracked vehicle adopts a hydraulic power-assisting cylinder to provide gear shifting assistance. When the hydraulic power-assisting cylinder of the speed change mechanism fails, problems such as difficulty in one-way gear shifting or inability to shift gears may easily occur. However, since the hydraulic power-assisting cylinder is located at the bottom of the speed change mechanism, and the speed change mechanism is fixedly installed on the floor of the tracked vehicle cab, it is impossible to directly debug and repair the hydraulic power-assisting cylinder when a problem occurs. The speed change mechanism needs to be disassembled as a whole to adjust the hydraulic power-assisting cylinder. After the adjustment of the hydraulic power-assisting cylinder is completed, it is reinstalled in the original position for testing. If the test result is still abnormal, the speed change mechanism needs to be disassembled again and the above-mentioned maintenance action is repeated. The maintenance process is time-consuming and labor-intensive. Utility Model Content

[0003] The purpose of the utility model is to provide a debugging stand for debugging the hydraulic power-assisted oil cylinder of the speed change mechanism of a crawler vehicle. The utility model has the advantage that the adjusted speed change mechanism can be tested directly without installing the speed change mechanism back to its original position for testing, which greatly saves maintenance time and improves maintenance efficiency.

[0004] To achieve the above-mentioned and other related purposes, the present invention provides the following technical solutions:

[0005] A debugging frame for debugging the hydraulic booster cylinder of a crawler vehicle speed change mechanism, comprising a debugging base,

[0006] A swing frame, wherein the swing frame is arranged on the debugging base, and the speed change mechanism is fixedly mounted on the swing frame; a first pin hole is opened on the debugging base, and a second pin hole is opened on the swing frame;

[0007] A latch, when the latch is inserted into the first pin hole and the second pin hole, the swing frame is vertically fixed on the debugging base; when the latch is pulled out of the second pin hole, the swing frame is rotatably connected to the debugging base;

[0008] The limit pin is installed on the debugging base in a plug-in manner and is used to limit the swing frame from rotating 90°.

[0009] Through the above technical solution, the debugging base is used to be installed on the fixed plate outside the cab; the swing frame is connected to the debugging base; the speed change mechanism removed from the cab is fixedly installed on the swing frame for subsequent debugging; when the pin is inserted into the first pin hole and the second pin hole, the swing frame is vertically fixed on the debugging base, and this state is convenient for installing the speed change mechanism on the swing frame; when the pin is pulled out of the second pin hole, the swing frame is rotated and connected to the debugging base, and the swing frame can drive the speed change mechanism to flip; the limit pin is used to limit the swing frame to rotate only 90°, so that the hydraulic power assist oil at the bottom of the speed change mechanism can be turned. The cylinder is exposed and faces the maintenance personnel side, providing them with sufficient operating space for maintenance and adjustment. After the maintenance is completed, the speed change mechanism can be turned over so that the first pin hole is opposite to the second pin hole, the pin is inserted into the first pin hole and the second pin hole, and the swing frame is fixed vertically on the debugging base again. At this time, the speed change adjustment mechanism is in a horizontal state. The hydraulic power cylinder can be directly connected to the hydraulic power in the cab through the hydraulic pipe to test the hydraulic power cylinder. There is no need to install the speed change mechanism back to its original position in the cab for testing, which greatly saves time and improves maintenance efficiency.

[0010] In one embodiment of the present invention, the debugging base includes a connecting plate and two supporting bases detachably mounted on both ends of the connecting plate.

[0011] In one embodiment of the present invention, the support base includes a base plate and a support plate vertically fixed to the base plate;

[0012] The first pin hole is provided on the support plate, a pin shaft is fixedly provided on the support plate, and the first pin hole and the pin shaft are located on the same vertical line;

[0013] A fixed ear plate is fixedly provided at the bottom of the base plate, and a limiting groove is provided on the upper surface of the base plate.

[0014] In one embodiment of the present invention, the connecting plate is detachably connected to the bottom plate, and limiting plates cooperating with the limiting grooves are provided at both ends of the connecting plate.

[0015] Through the above technical solution, an assembled design is adopted, which is convenient to carry, simple to operate, safe and reliable.

[0016] In one embodiment of the present invention, a positioning pin is fixedly provided in the limiting groove, and a first thread groove is provided in the middle of the limiting groove;

[0017] The limiting plate is provided with a positioning hole matched with the positioning pin, and the limiting plate is threadedly connected with a threaded rod.

[0018] In one embodiment of the present invention, a cross bar perpendicular to the threaded rod is fixedly provided on the top of the threaded rod.

[0019] Through the above technical solution, the positioning pins and the positioning holes realize the positioning of the connecting plate and the base plate; the threaded rod and the first thread groove are threadedly connected, thereby realizing a detachable fixed connection between the connecting plate and the base plate; the threaded rod and the first thread groove can be directly locked and loosened by screwing the cross bar; the operation is simple, and the assembly design is adopted, which is compact and light, easy to carry, and very conducive to emergency repairs in the field.

[0020] In one embodiment of the present invention, the swing frame includes two swing rods, a first mounting plate and a second mounting plate respectively fixed to the ends of the two swing rods;

[0021] The second pin hole is provided on the rocker arm, and an axial hole cooperating with the pin shaft is provided on the rocker arm, and the second pin hole and the axial hole are located on the same vertical line.

[0022] In one embodiment of the present invention, a connecting ear plate is fixedly provided on the first mounting plate; a fixing column is fixed on the second mounting plate, and a second thread groove is coaxially provided on the fixing column.

[0023] Through the above technical solution, the shaft hole cooperates with the pin shaft to realize the rotational connection between the rocker arm and the support plate; the connecting ear plate is used to be fixedly connected with the pin hole at the front end of the speed change mechanism through a fixing pin; the second threaded groove is used to be fixedly connected with the base at the rear end of the speed change mechanism through a bolt; thereby realizing the fixation of the speed change mechanism.

[0024] In one embodiment of the present invention, the latch pin and the limit pin are both hand-pull pins.

[0025] In one embodiment of the present invention, the hand-pull pin puller includes a fixing frame, a pull pin movably mounted in the fixing frame, an annular plate fixed to the pull pin, and a spring sleeved on the pull pin and connected to the fixing frame at one end and the annular plate at the other end;

[0026] A handle is fixed on the end of the pull pin.

[0027] Through the above technical solution, the latch and the limit pin can be quickly inserted and removed.

[0028] As described above, the debugging stand for debugging the hydraulic booster cylinder of the speed change mechanism of a crawler vehicle of the present invention has the following beneficial effects:

[0029] 1. The speed change mechanism removed from the cab can be fixedly installed on the swing frame for subsequent debugging. After the speed change mechanism is installed on the swing frame, the swing frame can be placed in two states on the debugging base by plugging and pulling out the pins. When the pins are inserted into the first and second pin holes, the swing frame is vertically fixed to the debugging base, and the speed adjustment mechanism is now in a horizontal state. The hydraulic booster cylinder can be connected to the hydraulic power in the cab through a hydraulic pipe, allowing direct testing of the hydraulic booster cylinder. When the pin is pulled out of the second pin hole, the swing frame is rotated and connected to the debugging base, at which point the swing frame can drive the speed change mechanism to flip. The limit pin is used to limit the swing frame to rotate only 90°, thereby exposing the hydraulic booster cylinder at the bottom of the speed change mechanism and facing the maintenance personnel, providing them with sufficient operating space for maintenance and adjustment.

[0030] The position of the speed change mechanism can be adjusted simply by plugging and unplugging the pins, allowing the speed change mechanism to be repaired and tested on the debugging stand. There is no need to install the speed change mechanism back to its original position in the cab for testing, which greatly saves time and improves maintenance efficiency.

[0031] 2. It adopts an assembled design, and can be disassembled and stored when not in use, reducing the overall volume. It is small and light, easy to carry, and very conducive to field emergency repairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a structural diagram of the swing frame of Example 1 of the present utility model in a state where the swing frame is vertically positioned on the debugging base;

[0033] Figure 2 This is a schematic structural diagram of the debugging base of Example 1 of the present utility model;

[0034] Figure 3 This is a schematic structural diagram of the connecting plate of Example 1 of the present utility model;

[0035] Figure 4 This is a schematic structural diagram of the swing frame of Example 1 of the present utility model when it is rotated 90°;

[0036] Figure 5 This is a structural diagram of the debugging stand in the storage state of Example 1 of the present utility model;

[0037] Figure 6 It is a structural schematic diagram of a hand-pull pin puller according to embodiment 2 of the present invention.

[0038] Figure markings: 1. debugging base; 2. swing frame; 3. first pin hole; 4. second pin hole; 5. latch; 6. limit pin; 11. connecting plate; 12. support seat; 121. bottom plate; 122. support plate; 101. pin shaft; 102. fixing ear plate; 13. limit groove; 14. limit plate; 15. positioning pin; 16. first thread groove; 17. positioning hole; 18. threaded rod; 19. cross bar; 21. swing rod; 22. first mounting plate; 23. second mounting plate; 24. fixing column; 25. second thread groove; 113. first reinforcing rib; 27. second reinforcing rib; 28. connecting ear plate; 29. fixing frame; 30. pull pin; 31. annular plate; 33. spring; 34. handle. DETAILED DESCRIPTION

[0039] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0040] See also Figures 1 to 6 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of this utility model. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by this utility model without affecting the efficacy and purpose that can be achieved by this utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of this utility model without substantially changing the technical content.

[0041] Example 1

[0042] See also Figure 1 The utility model provides a debugging frame for debugging the hydraulic booster cylinder of a crawler vehicle speed change mechanism, comprising a debugging base 1,

[0043] The swing frame 2 is arranged on the debugging base 1, and the speed change mechanism is fixedly installed on the swing frame 2; a first pin hole 3 is opened on the debugging base 1, and a second pin hole 4 is opened on the swing frame 2;

[0044] When the latch 5 is inserted into the first pin hole 3 and the second pin hole 4, the swing frame 2 is vertically fixed on the debugging base 1; when the latch 5 is pulled out of the second pin hole 4, the swing frame 2 is rotated and connected to the debugging base 1;

[0045] The limit pin 6 is installed on the debugging base 1 in a plug-in manner and is used to limit the swing frame 2 from rotating 90°.

[0046] See also Figure 1 、 Figure 2 and Figure 3 The debugging base 1 includes a connecting plate 11 and two support bases 12 detachably mounted on both ends of the connecting plate 11. The support base 12 includes a bottom plate 121 and a support plate 122 welded and fixed to the bottom plate 121. The support plate 122 is arranged perpendicular to the bottom plate 121, and a first reinforcing rib 113 is welded and fixed between the bottom plate 121 and the support plate 122. The connecting plate 11 is detachably connected to the bottom plate 121.

[0047] The first pin hole 3 is opened on the support plate 122, and the latch pin 5 is inserted into the first pin hole 3; a pin shaft 101 is fixedly provided on the support plate 122, and the first pin hole 3 and the pin shaft 101 are located on the same vertical line, wherein the pin shaft 101 is located above the first pin hole 3; a limiting hole is opened on the support plate 122 located on one side of the first pin hole 3, and a limiting pin 6 is inserted into the limiting hole.

[0048] A fixing lug plate 102 is welded and fixed to the bottom of the bottom plate 121. The fixing lug plate 102 is fixed to the bottom plate 121 and the fixing plate outside the cab by cooperating with the fixing pin;

[0049] A limiting groove 13 is provided on the upper end surface of the bottom plate 121; limiting plates 14 are provided at both ends of the connecting plate 11 to cooperate with the limiting groove 13, and the limiting plates 14 are installed in the limiting groove 13; a positioning pin 15 is welded or bolted in the limiting groove 13, and a first thread groove 16 is provided in the middle of the limiting groove 13;

[0050] The limiting plate 14 is provided with a positioning hole 17 that cooperates with the positioning pin 15. The limiting plate 14 is threadedly connected to a threaded rod 18, wherein a cross bar 19 perpendicular to the threaded rod 18 is fixed on the top of the threaded rod 18; thereby realizing a detachable connection between the connecting plate 11 and the bottom plate 121.

[0051] See also Figure 1 and Figure 4 The swing frame 2 includes two swing rods 21, a first mounting plate 22, and a second mounting plate 23; wherein the two swing rods 21 are rotatably connected to the two support plates 122, respectively, and the first mounting plate 22 and the second mounting plate 23 are respectively welded or bolted to the top of the two swing rods 21; wherein the first mounting plate 22, the second mounting plate 23 and the two swing rods 21 are respectively welded with a second reinforcing rib 27;

[0052] The second pin hole 4 is formed on the swing rod 21. The swing rod 21 is provided with an axial hole that cooperates with the pin shaft 101. The axial hole cooperates with the pin shaft 101 to realize the rotational connection between the swing rod 21 and the support plate 122. The second pin hole 4 and the axial hole are located on the same vertical line. The axial hole is provided above the second pin hole 4.

[0053] A connecting ear plate 28 is welded and fixed to the first mounting plate 22; a fixing column 24 is welded and fixed to the second mounting plate 23, and a second thread groove 25 is coaxially arranged on the fixing column 24; a pin hole is provided at the front end of the speed change mechanism, the connecting ear plate 28 is connected to the pin hole and the front end of the speed change mechanism is fixed to the first mounting plate 22 by a fixing pin; the second thread groove 25 is used to connect with the recoil of the rear end of the speed change mechanism, and the rear end of the speed change mechanism is fixed to the second mounting plate 23 by a bolt and the second thread groove 25, thereby realizing the fixation of the speed change mechanism and the swing frame 2.

[0054] Example 2

[0055] See also Figure 6 The limit pin 6 and the latch pin 5 in this embodiment are both hand-pull pull-out pins, which include a fixing frame 29 fixed by bolts on the outer wall of the support plate 122, a pull pin 30 movably installed in the fixing frame 29, an annular plate 31 fixed on the pull pin 30, and a spring 33 sleeved on the pull pin 30 and connected to the fixing frame 29 at one end and the annular plate 31 at the other end; a handle 34 is fixed to the end of the pull pin 30; the length of the pull pin 30 protruding from the inner side of the support plate 122 can be adjusted by axially pulling the pull pin 30; releasing the pull pin 30 drives the pull pin 30 to its original position through the elastic force of the spring 33.

[0056] Brief description of the usage process:

[0057] See also Figure 1 and Figure 4 , before use, first assemble the debugging frame and install it on the fixed plate outside the cab; when in use, disassemble and remove the speed change mechanism from the cab; then insert the pin 5 into the first pin hole 3 and the second pin hole 4, so that the swing frame 2 is vertically fixed on the debugging base 1, and the speed change mechanism is installed on the debugging frame (the first mounting plate 22 is connected to the front end of the speed change mechanism, and the second mounting plate 23 is connected to the rear end of the speed change mechanism). Then, through two hydraulic pipes, the hydraulic power in the cab is led out and connected to the speed change mechanism, and then the hydraulic power cylinder is tested; when the hydraulic power cylinder test fails, pull the pin 5 to separate the support plate 122 and the rocker arm 21, and then gently push the rocker arm 21 to rotate toward the side of the limit pin 6. At this time, the swing frame 2 drives the speed change mechanism to flip; the limit pin 6 is used to limit the swing frame 2 to rotate only 90°, so that the hydraulic power cylinder at the bottom of the speed change mechanism can be exposed and face the maintenance personnel, providing sufficient operating space for the maintenance personnel, which is convenient for maintenance personnel to repair and adjust;

[0058] After adjustment, the speed change mechanism is returned to 90°, and the pin 5 is used to fix the rocker arm 21 again. The rocker frame 2 is fixed vertically on the debugging base 1 again. At this time, the speed change adjustment mechanism is in a horizontal state, and the hydraulic power cylinder can be tested again; if the test fails again, just pull out the pin 5 again, lay the speed change mechanism on its side, and then adjust it. There is no need to install the speed change mechanism back to its original position in the cab for testing, which greatly saves time and improves maintenance efficiency.

[0059] See also Figure 5 After the debugging is completed, the speed change mechanism is removed from the swing frame 2 and installed on the crawler vehicle, and the debugging frame is removed from the fixed plate; then the connecting plate 11 and the support seat 12 are separated, and the limit pin 6 is pulled out so that one end of the limit pin 6 enters the limit hole on the support plate 122, thereby preventing the limit pin 6 from blocking the rotation of the swing rod 21; pull out the pin 5 to separate the support plate 122 and the swing rod 21, and then push the two swing rods 21 to rotate, thereby rotating the two swing rods 21 and the first mounting plate 22 and the second mounting plate 23 by 180 degrees, and folding and storing the swing frame 2 to reduce the overall volume and make it more convenient to carry.

[0060] In summary, the present invention solves the problem of tracked vehicle transmission mechanism hydraulic booster cylinders requiring only reinstallation for testing after adjustment, which can be time-consuming and requires repeated rework. It significantly saves time and improves maintenance efficiency, is simple to operate, and is safe and reliable. Its compact and lightweight assembly design makes it highly suitable for field repairs. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and possesses high industrial value.

[0061] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A debugging stand for debugging the hydraulic booster cylinder of a crawler vehicle's speed change mechanism, characterized by: Including debugging base (1), A swing frame (2), wherein the swing frame (2) is arranged on the debugging base (1), and the speed change mechanism is fixedly mounted on the swing frame (2); a first pin hole (3) is provided on the debugging base (1), and a second pin hole (4) is provided on the swing frame (2); A latch (5), when the latch (5) is inserted into the first pin hole (3) and the second pin hole (4), the swing frame (2) is vertically fixed on the debugging base (1); when the latch (5) is pulled out of the second pin hole (4), the swing frame (2) is rotatably connected to the debugging base (1); A limit pin (6) is installed on the debugging base (1) in a plug-in manner and is used to limit the swing frame (2) from rotating by 90 degrees.

2. The debugging stand for debugging the hydraulic booster cylinder of a crawler vehicle speed change mechanism according to claim 1, characterized in that: The debugging base (1) comprises a connecting plate (11) and two supporting seats (12) detachably mounted on both ends of the connecting plate (11).

3. The debugging stand for debugging the hydraulic booster cylinder of a crawler vehicle speed change mechanism according to claim 2, characterized in that: The support base (12) comprises a base plate (121) and a support plate (122) vertically fixed on the base plate (121); The first pin hole (3) is formed on the support plate (122), a pin shaft (101) is fixedly provided on the support plate (122), and the first pin hole (3) and the pin shaft (101) are located on the same vertical line; A fixed ear plate (102) is fixedly provided at the bottom of the bottom plate (121), and a limiting groove (13) is provided on the upper end surface of the bottom plate (121).

4. The debugging stand for debugging the hydraulic booster cylinder of a crawler vehicle speed change mechanism according to claim 3, characterized in that: The connecting plate (11) is detachably connected to the bottom plate (121), and limiting plates (14) that cooperate with the limiting grooves (13) are provided at both ends of the connecting plate (11).

5. The debugging stand for debugging the hydraulic booster cylinder of a crawler vehicle speed change mechanism according to claim 4, characterized in that: A positioning pin (15) is fixedly provided in the limiting groove (13), and a first thread groove (16) is provided in the middle of the limiting groove (13); The limiting plate (14) is provided with a positioning hole (17) that cooperates with the positioning pin (15), and the limiting plate (14) is threadedly connected with a threaded rod (18).

6. The debugging stand for debugging the hydraulic booster cylinder of a crawler vehicle speed change mechanism according to claim 5, characterized in that: A cross bar (19) perpendicular to the threaded rod (18) is fixedly provided on the top of the threaded rod (18).

7. The debugging stand for debugging the hydraulic booster cylinder of a crawler vehicle speed change mechanism according to claim 3, characterized in that: The swing frame (2) comprises two swing rods (21), a first mounting plate (22) and a second mounting plate (23) respectively fixed to the ends of the two swing rods (21); The second pin hole (4) is provided on the rocker (21), and an axial hole cooperating with the pin shaft (101) is provided on the rocker (21), and the second pin hole (4) and the axial hole are located on the same vertical line.

8. The debugging stand for debugging the hydraulic booster cylinder of a crawler vehicle speed change mechanism according to claim 7, characterized in that: A connecting ear plate (28) is fixedly provided on the first mounting plate (22); a fixing column (24) is fixed on the second mounting plate (23), and a second thread groove (25) is coaxially provided on the fixing column (24).

9. The debugging stand for debugging the hydraulic booster cylinder of a crawler vehicle speed change mechanism according to claim 1, characterized in that: The latch pin (5) and the limit pin (6) are both hand-pull type pull pins.

10. The debugging stand for debugging the hydraulic booster cylinder of a crawler vehicle speed change mechanism according to claim 9, characterized in that: The hand-pull pin puller comprises a fixing frame (29), a pull pin (30) movably mounted in the fixing frame (29), an annular plate (31) fixed on the pull pin (30), and a spring (33) sleeved on the pull pin (30) and connected to the fixing frame (29) at one end and connected to the annular plate (31) at the other end; A handle (34) is fixed to the end of the pull pin (30).

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