A device for fast positioning and installation of track shoe connection for special vehicles

Abstract

The present invention discloses a device for fast positioning and installation of track plates of special vehicles, comprising a tightening gun, a track plate, an end coupler, and a moving and fixing device for end coupler bolts. The moving and fixing device for the track plate comprises an ejection cylinder and a track plate positioning plate. The moving and fixing device for the end coupler bolts comprises two end coupler bolt fixing seats relatively arranged on the track plate positioning plate and two end coupler bolt ejection cylinders. The moving and fixing device for the end coupler comprises an end coupler guide plate and an end coupler ejection cylinder. During assembly, two track plates equipped with track pins are placed on the positioning plate through the limiting grooves on the track plate positioning plate, the end coupler is placed on the end coupler guide plate, the end coupler bolts are placed on the end coupler bolt fixing seats, the end coupler is ejected to the top of the end coupler bolts by the end coupler ejection cylinder, and connected to the two track pins, then the bolts are ejected to the bolt holes of the end coupler by the bolt ejection cylinder, and finally tightened by the tightening gun.

Description

Technical Field

[0001] The invention relates to the field of rapid positioning and assembly, in particular to a device for rapid positioning and installation of track plates of special vehicles. Background Art

[0002] During the operation of the crawler track, the track pin is mainly subjected to tensile force, and the track pin rubber is twisted to achieve accurate meshing of the end coupler and the driving wheel gear disc. In order to extend the life of the crawler track, the track pin pre-twist angle is set, and end coupler positioning grooves are set on both sides of the crawler pin near the end surface. When the end coupler is installed, the angle between the two track plates must meet 166°. The assembly process is to design an arc-shaped tooling with an angle of 166°, place the two track plates on the arc-shaped tooling, manually align the end faces of the two track plates with the end faces of the arc-shaped tooling, and then manually install the end coupler to ensure that the angle between the two track plates meets 166°. This method requires multiple steps to assemble the entire track plate, and continuous assembly cannot be achieved. It requires distributed lifting and connection, which is inefficient, and the production cycle is unstable. The assembly consistency is slightly poor, and there are safety hazards. Summary of the invention

[0003] The object of the present invention is to provide a device for quickly positioning and installing the track shoe connection of a special vehicle, comprising a track shoe moving and fixing device, an end coupling moving and fixing device, an end coupling bolt moving and fixing device and a tightening gun arranged in a spatial rectangular coordinate system O-XYZ.

[0004] The X-axis of the spatial rectangular coordinate system O-XYZ is parallel to the axial direction of the end coupling ejection cylinder in the end coupling moving and fixing device, the Y-axis is perpendicular to the axial direction of the end coupling ejection cylinder, and the Z-axis is parallel to the vertical direction.

[0005] The track shoe moving and fixing device comprises an ejection cylinder, a connecting mechanism and a track shoe positioning plate.

[0006] The extending direction of the piston rod I of the ejection cylinder is the positive direction of the Z axis.

[0007] A connecting mechanism is fixed above the piston rod 1.

[0008] Track shoe positioning plates are relatively installed at two ends of the upper surface of the connecting mechanism.

[0009] The track shoe positioning plate is an L-shaped plate, the horizontal end of which is fixed on the connecting mechanism, and the vertical section is provided with three arc-shaped limit grooves, which are limit groove I, limit groove II and limit groove III. A sensor is installed on the limit groove.

[0010] The end coupling bolt moving and fixing device comprises two end coupling bolt fixing seats relatively arranged on the vertical section of the track shoe positioning plate and two end coupling bolt ejecting cylinders respectively arranged below the end coupling bolt fixing seats.

[0011] Both ends of the track shoe moving and fixing device are provided with end coupler moving and fixing devices. The end coupler moving and fixing device comprises a guide slide rail, an end coupler guide plate and an end coupler ejection cylinder.

[0012] The guide rail is provided with an end coupler guide plate which can slide along the guide rail, and one end of the end coupler guide plate away from the track shoe moving fixing device is connected to the piston rod III of the end coupler ejection cylinder.

[0013] During assembly, two track shoes equipped with track pins are placed on the track shoe positioning plate through the limiting groove, and the angle between the two track shoes is 166°, the end coupler is placed on the end coupler guide plate, and the end coupler bolts are placed on the end coupler bolt fixing seat.

[0014] The end coupler and two track pins are connected together by the end coupler ejection cylinder. The end coupler bolts are ejected into the bolt holes of the end coupler by the end coupler bolt ejection cylinder, and then the end coupler bolts are tightened by the tightening gun to connect the track plate and the end coupler together.

[0015] Furthermore, the track shoe moving and fixing device also includes a cylinder fixing plate, and the ejection cylinder is installed on the cylinder fixing plate.

[0016] Furthermore, the connecting mechanism is a symmetrical structure.

[0017] The connecting mechanism comprises a pad, a U-shaped plate, two mounting plates and two connecting plates.

[0018] The U-shaped plate comprises a horizontal bottom plate and two vertical side plates, a pad is connected below the horizontal bottom plate, and a mounting plate is respectively connected above the two vertical side plates.

[0019] The plate surface of the mounting plate is parallel to the plate surfaces of the backing plate and the transverse bottom plate.

[0020] A connecting plate is arranged between the mounting plate and the plate surface of the transverse bottom plate.

[0021] The track shoe positioning plate is fixed on the mounting plate.

[0022] Furthermore, the extending direction of the piston rod II of the end coupling bolt pushing out of the cylinder is the positive direction of the Z axis.

[0023] Furthermore, the extending direction of the piston rod III of the end coupling ejection cylinder points to the track shoe moving fixing device.

[0024] Furthermore, the end coupler moving and fixing device also includes two end coupler cylinder connecting plates, and the end coupler cylinder connecting plates are L-shaped plates and are arranged at both ends of the end coupler ejection cylinder.

[0025] Furthermore, the angle between the straight line passing through the center of the arc at the bottom of the limit groove I and parallel to the Y-axis and the line passing through the center of the arc at the bottom of the limit groove II and the limit groove III is 166°.

[0026] Furthermore, one track shoe is equipped with two track pins, the track shoe positioned by the limit groove I is recorded as track shoe I, the track shoe positioned by the limit groove II and the limit groove III is recorded as track shoe II, and the two track pins assembled on the track shoe I are recorded as track pin I and track pin II, and the two track pins assembled on the track shoe II are recorded as track pin III and track pin IV.

[0027] The two ends of the track pin II, track pin III and track pin IV are respectively located in the limiting grooves I, II and III of the two track shoe positioning plates.

[0028] Further, the tightening gun is rotated 7 degrees in the opposite direction to tighten the end coupling bolt.

[0029] Furthermore, after being tightened, the tightening torque of the end coupling bolt reaches 370-400 N·m.

[0030] The technical effect of the present invention is unquestionable, and the beneficial effects of the present invention are as follows:

[0031] The work that originally required the cooperation of four people can now be completed by one person, with an efficiency increase of 60% compared with the original production mode, and a stable production rhythm. The angular dimensions are guaranteed by positioning seats and limit seats, with good consistency, which improves assembly quality, increases production efficiency, reduces production costs, and avoids safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the track shoe moving fixing device;

[0033] Figure 1 (a) is a front view, (b) is a side view, and (c) is a top view;

[0034] Figure 2 The track shoe is ejected at an angle of 166°;

[0035] Figure 2 (a) is a front view, (b) is a side view, and (c) is a top view;

[0036] Figure 3 Diagram of the state where the track shoes, end couplers and end coupler bolts are put into the structure;

[0037] Figure 3 (a) is a front view, (b) is a top view;

[0038] Figure 4 The state diagram of the end coupling ejection cylinder ejecting the end coupling;

[0039] Figure 4 (a) is a front view, (b) is a top view;

[0040] Figure 5 This is a state diagram of the end coupling bolt being pushed out of the cylinder;

[0041] Figure 5 (a) is a front view, (b) is a top view;

[0042] Figure 6 Diagram for tightening the end coupling bolts, track shoes, and end coupling connections using a torque gun.

[0043] In the figure: track shoe positioning plate 1, limit groove I101, limit groove II102, limit groove III103, ejection connection mechanism 2, pad 201, U-shaped plate 202, mounting plate 203, connecting plate 204, ejection cylinder 3, cylinder fixing plate 4, track shoe 5, track shoe I501, track shoe II502, end coupler cylinder connecting plate 6, end coupler guide plate 7, guide slide rail 8, end coupler bolt fixing seat 9, end coupler ejection cylinder 10, end coupler bolt 11, end coupler 12, tightening gun 13, end coupler bolt ejection cylinder 14, track pin 15, track pin I1501, track pin II1502, track pin III1503, track pin IV1504, track shoe moving fixing device 16, end coupler moving fixing device 17, end coupler bolt moving fixing device 18. DETAILED DESCRIPTION

[0044] The present invention is further described below in conjunction with the embodiments, but it should not be understood that the above subject matter of the present invention is limited to the following embodiments. Without departing from the above technical ideas of the present invention, various substitutions and changes are made according to the common technical knowledge and customary means in the art, which should all be included in the protection scope of the present invention.

[0045] Embodiment 1:

[0046] A device for fast positioning and installation of track shoe connections of special vehicles comprises a track shoe moving and fixing device 16, an end coupling moving and fixing device 17, an end coupling bolt moving and fixing device 18 and a tightening gun 13 arranged in a spatial rectangular coordinate system O-XYZ.

[0047] The X-axis of the spatial rectangular coordinate system O-XYZ is parallel to the axial direction of the end coupling ejection cylinder 10 in the end coupling moving and fixing device 17, the Y-axis is perpendicular to the axial direction of the end coupling ejection cylinder 10, and the Z-axis is parallel to the vertical direction.

[0048] The track shoe moving and fixing device 16 includes an ejection cylinder 3 , a connecting mechanism 2 and a track shoe positioning plate 1 .

[0049] The extending direction of the piston rod 1 of the ejection cylinder 3 is the positive direction of the Z axis.

[0050] A connecting mechanism 2 is fixed above the piston rod 1.

[0051] Track shoe positioning plates 1 are installed oppositely at two ends of the upper surface of the connecting mechanism 2 .

[0052] The track shoe positioning plate 1 is an L-shaped plate, the horizontal end of which is fixed on the connecting mechanism 2, and the vertical section is provided with three arc-shaped limit grooves, which are limit groove I101, limit groove II102 and limit groove III103. Sensors are installed on the limit grooves.

[0053] The end coupler bolt moving and fixing device 18 includes two end coupler bolt fixing seats 9 relatively arranged on the vertical section of the track shoe positioning plate 1 and two end coupler bolt ejecting cylinders respectively arranged below the end coupler bolt fixing seats 9.

[0054] Both ends of the track shoe moving and fixing device 16 are provided with an end coupler moving and fixing device 17. The end coupler moving and fixing device 17 comprises a guide rail 8, an end coupler guide plate 7 and an end coupler ejection cylinder 10.

[0055] The guide rail 8 is arranged along the X-axis direction and one end is fixed on the track shoe moving and fixing device 16. The guide rail 8 is provided with an end coupler guide plate 7 that can slide along the guide rail 8. The end of the end coupler guide plate 7 away from the track shoe moving and fixing device 16 is connected to the piston rod III of the end coupler ejection cylinder 10.

[0056] When assembling, refer to Figure 3 Two track shoes 5 equipped with track pins 15 are placed on the track shoe positioning plate 1 through the limiting groove, and the angle between the two track shoes 5 is 166°, the end coupler 12 is placed on the end coupler guide plate 7, and the end coupler bolts 11 are placed on the end coupler bolt fixing seat 9.

[0057] See also Figures 4 to 6The end coupler 12 and two track pins 15 are connected together through the end coupler ejection cylinder 10. The end coupler bolt 11 is ejected into the bolt hole of the end coupler 12 through the end coupler bolt ejection cylinder 14, and then the end coupler bolt 11 is tightened by the tightening gun 13 to connect the track shoe 5 and the end coupler 12 together.

[0058] Embodiment 2:

[0059] The main structure of this embodiment is the same as that of Embodiment 1. Furthermore, the track shoe moving and fixing device 16 also includes a cylinder fixing plate 4, and the ejection cylinder 3 is installed on the cylinder fixing plate 4.

[0060] Embodiment 3:

[0061] The main structure of this embodiment is the same as any one of Embodiments 1 to 2. Furthermore, the connecting mechanism 2 is a symmetrical structure.

[0062] The connecting mechanism 2 includes a backing plate 201 , a U-shaped plate 202 , two mounting plates 203 and two connecting plates 204 .

[0063] The U-shaped plate 202 includes a horizontal bottom plate and two vertical side plates. A pad 201 is connected below the horizontal bottom plate, and a mounting plate 203 is connected above each of the two vertical side plates.

[0064] The surface of the mounting plate 203 is parallel to the surfaces of the backing plate 201 and the transverse bottom plate.

[0065] A connecting plate 204 is provided between the mounting plate 203 and the plate surface of the transverse bottom plate.

[0066] The track shoe positioning plate 1 is fixed on the mounting plate 203 .

[0067] Embodiment 4:

[0068] The main structure of this embodiment is the same as any one of Embodiments 1 to 3. Furthermore, the extending direction of the piston rod II of the end coupling bolt pushing out the cylinder 14 is the positive direction of the Z axis.

[0069] Embodiment 5:

[0070] The main structure of this embodiment is the same as any one of Embodiments 1 to 4. Furthermore, the extension direction of the piston rod III of the end coupling ejection cylinder 10 points to the track shoe moving fixing device 16.

[0071] Embodiment 6:

[0072] The main structure of this embodiment is the same as any one of Embodiments 1 to 5. Furthermore, the end coupler moving and fixing device 17 also includes two end coupler cylinder connecting plates 6. The end coupler cylinder connecting plates 6 are L-shaped plates and are arranged at both ends of the end coupler ejection cylinder 10.

[0073] Embodiment 7:

[0074] The main structure of this embodiment is the same as any one of embodiments 1 to 6. Furthermore, the angle between the straight line passing through the center of the bottom arc of the limit groove I101 and parallel to the Y-axis and the line passing through the center of the bottom arc of the limit groove II102 and the limit groove III103 is 166°.

[0075] Embodiment 8:

[0076] The main structure of this embodiment is the same as any one of Embodiments 1 to 7. Furthermore, two track pins 15 are installed on one track shoe 5. The track shoe 5 positioned by the limiting groove I101 is recorded as track shoe I501, and the track shoe 5 positioned by the limiting groove II102 and the limiting groove III103 is recorded as track shoe II502. The two track pins installed on the track shoe I501 are recorded as track pin I1501 and track pin II1502, and the two track pins installed on the track shoe II502 are recorded as track pin III1503 and track pin IV1504.

[0077] The two ends of the track pin II1502, the track pin III1503 and the track pin IV1504 are respectively located in the limiting grooves I101, II102 and III103 of the two track shoe positioning plates 1.

[0078] Embodiment 9:

[0079] The main structure of this embodiment is the same as any one of Embodiments 1 to 8. Furthermore, the tightening gun 13 is rotated in the opposite direction by 7 degrees to tighten the end coupling bolt.

[0080] Embodiment 10:

[0081] The main structure of this embodiment is the same as any one of Embodiments 1 to 9. Furthermore, after being tightened, the tightening torque of the end coupling bolt 11 reaches 370 to 400 N·m.

[0082] Embodiment 11:

[0083] The main structure of this embodiment is the same as any one of Embodiments 1 to 10. Furthermore, the purpose of the present invention is to design a track connection positioning mechanism to achieve rapid positioning of the track plate so that the end coupler and the end coupler bolts can be accurately and quickly assembled with the track plate, thereby improving assembly quality, increasing production efficiency, reducing production costs, and reducing safety hazards.

[0084] Design points of the present invention:

[0085] 1. It can realize the rapid positioning of the angle between two track shoes.

[0086] 2. The end coupler and end coupler bolts are quickly installed.

[0087] 3. Efficient and convenient operation, stable production rhythm.

[0088] 4. Good assembly consistency and avoid safety hazards.

[0089] The technical solution of the present invention is: design a crawler track connection positioning mechanism, align the product with the tooling positioning seat and the limit seat and put the product into the product, the bottom limit seat is lifted into place by the cylinder, so that the two crawler plates are quickly positioned at 166°, the end coupler and the end coupler bolts are installed, and the bolts are tightened with a torque gun to complete the connection.

[0090] Embodiment 12:

[0091] The main structure of this embodiment is the same as any one of Embodiments 1 to 11. Furthermore, the present invention provides a device for fast positioning and installation of track shoes for special vehicles. The device mainly consists of the following steps:

[0092] 1. Track shoe positioning device: The track shoe positioning device consists of two positioning plates. The position of the positioning plates is determined according to the length of the track shoes. At the same time, according to the requirements of the drawings, the angle between the two track shoes is 166° during the crawler assembly. The positioning plates are designed to be mechanically positioned at an angle of 166°. At the same time, sensors are designed in the positioning part to detect whether the product is accurately positioned. (Structure reference: Figure 1 ) Positioning points are designed on the positioning plate to form a 166° angle through three points.

[0093] 2. Positioning device ejection: The cylinder ejects the positioning device through the CNC program. (Structure refers to the simplified Figure 2 )

[0094] Among them, A is the position before the positioning plate is ejected, and B is the position after the positioning plate is ejected.

[0095] 3. Put in the track shoes: align the two track shoes with the limit grooves of the tooling track shoe positioning plate 1. At the same time, use the sensor to detect whether the track shoes are accurately positioned.

[0096] 4. Insert the end coupler: Place the end coupler in front of the end coupler guide plate 7.

[0097] 5. Insert the end coupling bolts: Place the end coupling bolts on the end coupling bolt fixing seat 9.

[0098] 6. Track shoe connection: Use the cylinder to push the end coupler to the top of the end coupler bolt, then use the cylinder to push the end coupler bolt out into place; finally, rotate the torque gun 7 degrees (reverse) to tighten the end coupler bolt to the required torque of 370~400N·m in the product drawing. (Structure reference simplified Figure 6 ).

Claims

1. A device for fast positioning and installation of track shoes for special vehicles, characterized in that: It comprises a track shoe moving and fixing device (16), an end coupling moving and fixing device (17), an end coupling bolt moving and fixing device (18) and a tightening gun (13) arranged in a spatial rectangular coordinate system O-XYZ; The X-axis of the spatial rectangular coordinate system O-XYZ is parallel to the axial direction of the end coupling ejection cylinder (10) in the end coupling moving and fixing device (17), the Y-axis is perpendicular to the axial direction of the end coupling ejection cylinder (10), and the Z-axis is parallel to the vertical direction; The track shoe moving and fixing device (16) comprises an ejection cylinder (3), a connecting mechanism (2) and a track shoe positioning plate (1); The extending direction of the piston rod I of the ejection cylinder (3) is the positive direction of the Z axis; A connecting mechanism (2) is fixed above the piston rod 1; Track shoe positioning plates (1) are installed oppositely at two ends of the upper surface of the connecting mechanism (2); The track shoe positioning plate (1) is an L-shaped plate, the horizontal end of which is fixed on the connecting mechanism (2), and the vertical section is provided with three limiting grooves with arc-shaped bottoms, namely limiting groove I (101), limiting groove II (102) and limiting groove III (103); sensors are installed on the limiting grooves; The end coupling bolt moving and fixing device (18) comprises two end coupling bolt fixing seats (9) arranged relatively on the vertical section of the track shoe positioning plate (1) and two end coupling bolt ejecting cylinders respectively arranged below the end coupling bolt fixing seats (9); Both ends of the track shoe moving and fixing device (16) are provided with an end coupler moving and fixing device (17); the end coupler moving and fixing device (17) comprises a guide rail (8), an end coupler guide plate (7) and an end coupler ejection cylinder (10); The guide rail (8) is provided with an end coupler guide plate (7) which can slide along the guide rail (8), and one end of the end coupler guide plate (7) away from the track shoe moving fixing device (16) is connected to the piston rod III of the end coupler ejection cylinder (10); During assembly, two track shoes (5) equipped with track pins (15) are placed on the track shoe positioning plate (1) through the limiting groove, and the angle between the two track shoes (5) is 166°, the end coupler (12) is placed on the end coupler guide plate (7), and the end coupler bolt (11) is placed on the end coupler bolt fixing seat (9); The end coupler (12) and two track pins (15) are connected together by the end coupler ejection cylinder (10); the end coupler bolt (11) is ejected into the bolt hole of the end coupler (12) by the end coupler bolt ejection cylinder (14), and then the end coupler bolt (11) is tightened by the tightening gun (13), so that the track plate (5) and the end coupler (12) are connected together.

2. The device for fast positioning and installation of track shoes for special vehicles according to claim 1, characterized in that: The track shoe moving and fixing device (16) further comprises the cylinder fixing plate (4), and the ejection cylinder (3) is mounted on the cylinder fixing plate (4).

3. The device for fast positioning and installation of track shoes for special vehicles according to claim 1, characterized in that: The connecting mechanism (2) is a symmetrical structure. The connecting mechanism (2) comprises a backing plate (201), a U-shaped plate (202), two mounting plates (203) and two connecting plates (204); The U-shaped plate (202) comprises a horizontal bottom plate and two vertical side plates, a pad (201) is connected below the horizontal bottom plate, and a mounting plate (203) is connected above each of the two vertical side plates; The surface of the mounting plate (203) is parallel to the surfaces of the backing plate (201) and the horizontal bottom plate; A connecting plate (204) is provided between the mounting plate (203) and the plate surface of the transverse bottom plate; The track shoe positioning plate (1) is fixed on the mounting plate (203).

4. The device for fast positioning and installation of track shoes for special vehicles according to claim 1, characterized in that: The extending direction of the piston rod II of the end coupling bolt pushing out the cylinder (14) is the positive direction of the Z axis.

5. The device for fast positioning and installation of track shoes for special vehicles according to claim 1, characterized in that: The extending direction of the piston rod III of the end coupling ejection cylinder (10) points to the track shoe moving fixing device (16).

6. The device for fast positioning and installation of track shoes for special vehicles according to claim 1, characterized in that: The end coupler moving and fixing device (17) further comprises two end coupler cylinder connecting plates (6), wherein the end coupler cylinder connecting plates (6) are L-shaped plates and are arranged at both ends of the end coupler ejection cylinder (10).

7. The device for fast positioning and installation of track shoes for special vehicles according to claim 1, characterized in that: The angle between the straight line passing through the center of the bottom arc of the limiting groove I (101) and parallel to the Y axis and the line passing through the center of the bottom arc of the limiting groove II (102) and the limiting groove III (103) is 166°.

8. The device for fast positioning and installation of track shoes for special vehicles according to claim 1, characterized in that: Two track pins (15) are mounted on one track shoe (5), the track shoe (5) positioned by the limiting groove I (101) is recorded as track shoe I (501), the track shoe (5) positioned by the limiting groove II (102) and the limiting groove III (103) is recorded as track shoe II (502), and the two track pins mounted on the track shoe I (501) are recorded as track pin I (1501) and track pin II (1502), and the two track pins mounted on the track shoe II (502) are recorded as track pin III (1503) and track pin IV (1504); The two ends of the track pin II (1502), the track pin III (1503) and the track pin IV (1504) are respectively located in the limiting groove I (101), the limiting groove II (102) and the limiting groove III (103) of the two track shoe positioning plates (1).

9. The device for fast positioning and installation of track shoes for special vehicles according to claim 1, characterized in that: The tightening gun (13) is rotated in the opposite direction by 7 degrees to tighten the end coupling bolts.

10. The device for fast positioning and installation of track shoes for special vehicles according to claim 1, characterized in that: After being tightened, the tightening torque of the end coupling bolt (101) reaches 370-400 N·m.

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