Large excavator track frame

Abstract

The utility model discloses a large excavator track frame which comprises two track frame bodies, a guide shell is fixedly connected between the two track frame bodies, a main sliding block is connected in the guide shell in a sliding mode, a first adjusting screw rod is connected to one side of the guide shell in a threaded and inserted mode, and one end of the first adjusting screw rod is connected with the main sliding block in a rotating and inserted mode. Two driven wheel connecting seats are arranged on one side of the guide shell, two second adjusting screw rods are inserted into one side of the main sliding block in a threaded mode, one end of each second adjusting screw rod is rotatably inserted into the corresponding driven wheel connecting seat, a plurality of sliding rods are slidably inserted into one side of the main sliding block, one end of each sliding rod is fixedly inserted into the corresponding driven wheel connecting seat, and the other end of each sliding rod is fixedly inserted into the corresponding driven wheel connecting seat. And a rotating shaft is rotationally inserted into one end of the driven wheel connecting seat. The first adjusting screw rod is screwed to enable the main sliding block to move in the guide shell, so that the two driven wheels are driven to move together, the tensioning degree of the crawler belt is integrally adjusted, and operation is easy, convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to excavator track frame technical field especially relates to a large -scale excavator track frame. BACKGROUND

[0002] Track frame is one of the main structure components of excavator, and the track is supported through the track frame in the process of using the excavator.

[0003] But the existing track frame in the process of using, because adjust the track tightness only can adjust alone, cannot integrality adjust, inconvenient operation of operating personnel, therefore, in order to industry technology progress, better realization track tightness integrally adjusting function on track frame, improve core technical competence, the present application proposes a new implementation scheme different from the structure and application mode of the prior art track frame. UTILITARIAN CONTENT

[0004] The utility model discloses a large -scale excavator track frame, which solves the problem that the existing track frame can only be adjusted individually when adjusting the track tightness, cannot be adjusted integrally and is inconvenient for operating personnel to operate.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A large -scale excavator track frame, including two track frame bodies, two track frame bodies are fixedly connected with the guide shell between, the guide shell is slidably connected with the main sliding block, the one side of guide shell is inserted with first adjusting screw rod, and one end of first adjusting screw rod is rotatably inserted with main sliding block, the one side of guide shell is equipped with two driven wheel connecting seat, and the one side of main sliding block is inserted with two second adjusting screw rods, and one end of second adjusting screw rod is rotatably inserted with driven wheel connecting seat, the one side of main sliding block is slidably inserted with a plurality of sliding rods, and one end of sliding rod is fixedly inserted with driven wheel connecting seat.

[0007] Further, one end of the driven wheel connecting seat is rotatably inserted with a rotating shaft, the other end of the rotating shaft is rotatably sleeved with a side block, and the top and bottom of the side block and the driven wheel connecting seat are integrally formed with a sliding strip.

[0008] Further, the two ends of the track frame body are provided with guide grooves, and the sliding strip slides in the guide grooves.

[0009] Further, the top of the track frame body is provided with a plurality of upper mounting grooves, and the bottom of the track frame body is provided with two lower mounting grooves.

[0010] Further, one end of the track frame body is provided with a driving wheel mounting groove, and the other end of the track frame body is provided with a driven wheel mounting groove.

[0011] Further, one end of the first adjusting screw rod, the second adjusting screw rod and the sliding rod is fixedly connected with a connecting screw rod, and the other end of the connecting screw rod is threadedly sleeved with a first fastening nut and a second fastening nut.

[0012] Further, the connecting frame and the supporting plate are fixedly connected between the two track frame bodies.

[0013] Further, the connecting screw rod penetrates through the connecting frame and the supporting plate, and the supporting plate is located between the first fastening nut and the second fastening nut.

[0014] The utility model discloses the beneficial effects are:

[0015] 1. by screwing the first adjusting screw rod makes the main sliding block move in the guide shell, to drive two driven wheels together and move, and then the tension of track is adjusted as a whole, and the operation is simple, convenient and fast.

[0016] 2. by screwing the second adjusting screw rod makes the sliding rod move on the main sliding block, to drive the driven wheel connecting seat to move, and then drive the driven wheel to move, so that the driven wheel is adjusted individually, and the tension of track is adjusted accurately. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of a large excavator track frame that the utility model proposes;

[0018] Figure 2 It is a partial view structure schematic view of a large excavator track frame that the utility model proposes;

[0019] Figure 3 It is a partial section top view structure schematic view of a large excavator track frame that the utility model proposes;

[0020] Figure 4 It is a section top view structure schematic view of a large excavator track frame that the utility model proposes;

[0021] Figure 5 It is a mounting connection state structure schematic view of a large excavator track frame that the utility model proposes.

[0022] In the drawing: 1, track frame body, 2, guide shell, 3, main sliding block, 4, first adjusting screw rod, 5, driven wheel connecting seat, 6, second adjusting screw rod, 7, sliding rod, 8, side block, 9, rotating shaft, 10, slide, 11, guide groove, 12, upper mounting groove, 13, lower mounting groove, 14, driven wheel mounting groove, 15, driven wheel mounting groove, 16, connecting frame, 17, supporting plate, 18, first fastening nut, 19, connecting screw rod, 20, second fastening nut. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0024] With reference to Figures 1-5 A large excavator track frame, including two track frame bodies 1, the two track frame bodies 1 are fixed with guide shell 2 through bolt, the guide shell 2 is slidably connected with main sliding block 3, the one side of guide shell 2 is screw-plugged with first adjusting screw 4, the one end of first adjusting screw 4 is rotatably plugged with main sliding block 3, the main sliding block 3 is moved in guide shell 2 by screwing first adjusting screw 4, so as to drive two driven wheels to move together, and then the tension of track is adjusted as a whole, the one side of guide shell 2 is equipped with two driven wheel connecting seats 5, the one side of main sliding block 3 is screw-plugged with two second adjusting screws 6, the one end of second adjusting screw 6 is rotatably plugged with driven wheel connecting seat 5, the one side of main sliding block 3 is slidably plugged with multiple sliding rods 7, the one end of sliding rod 7 is fixedly plugged with driven wheel connecting seat 5, sliding rod 7 is moved on main sliding block 3 by screwing second adjusting screw 6, so as to drive driven wheel connecting seat 5 to move, and then drive driven wheel to move, thus a single driven wheel is adjusted, and the tension of track is accurately adjusted.

[0025] The one end of driven wheel connecting seat 5 is rotatably plugged with rotating shaft 9, the other end of rotating shaft 9 is rotatably sleeved with side block 8, the bottom of track frame body 1 is equipped with two lower mounting grooves 13, the one end of track frame body 1 is equipped with driving wheel mounting groove 14, the driving wheel and driven wheel are fixedly installed on rotating shaft 9 and are located in driving wheel mounting groove 14 and driven wheel mounting groove 15, the top and bottom of side block 8 and driven wheel connecting seat 5 are integrally formed with slide strip 10, the two ends of track frame body 1 are equipped with guide groove 11, so as to guide the movement of driven wheel connecting seat 5, improve the stability of track adjustment, slide strip 10 slides in guide groove 11, the top of track frame body 1 is equipped with multiple upper mounting grooves 12, guide wheel is installed in upper mounting groove 12, the other end of track frame body 1 is equipped with driven wheel mounting groove 15, the one end of first adjusting screw 4, second adjusting screw 6 and sliding rod 7 is welded with connecting screw 19, the other end of connecting screw 19 is screw-threadedly sleeved with first fastening nut 18 and second fastening nut 20, first fastening nut 18 and second fastening nut 20 are tightened to fix connecting screw 19, so as to drive first adjusting screw 4, second adjusting screw 6 and sliding rod 7 to be fixed, and then the tension of track is fixed, the two track frame bodies 1 are fixed with connecting frame 16 and supporting plate 17 through bolt, the one end of connecting screw 19 passes through connecting frame 16 and supporting plate 17, supporting plate 17 is located between first fastening nut 18 and second fastening nut 20.

[0026] The working principle of the embodiment is as follows: in use, first, the driving wheel and the driven wheel are fixedly installed on the rotating shaft 9 and located in the driving wheel installation slot 14 and the driven wheel installation slot 15, then the guide wheel is installed in the upper installation slot 12, and the chain guide wheel is installed in the lower installation slot 13, then the track is wound between the driving wheel, the guide wheel, the chain guide wheel and the driven wheel, then the first adjusting screw 4 is screwed to drive the main sliding block 3 to move in the guide shell 2, thereby driving the two driven wheels to move together, and the tension of the track is adjusted as a whole, then the second adjusting screw 6 is screwed to drive the sliding rod 7 to move on the main sliding block 3, thereby driving the driven wheel connecting seat 5 to move, and the driven wheel is driven to move, thus the single driven wheel is adjusted, the tension of the track is accurately adjusted, finally, the first fastening nut 18 and the second fastening nut 20 are tightened to fix the connecting screw 19, thereby fixing the first adjusting screw 4, the second adjusting screw 6 and the sliding rod 7, and the tension of the track is fixed.

[0027] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A large excavator track frame, comprising two track frame bodies (1), characterized in that, A guide shell (2) is fixedly connected between the two track frame bodies (1). A main sliding block (3) is slidably connected inside the guide shell (2). A first adjusting screw (4) is threaded into one side of the guide shell (2). One end of the first adjusting screw (4) is rotatably connected to the main sliding block (3). Two driven wheel connecting seats (5) are provided on one side of the guide shell (2). Two second adjusting screws (6) are threaded into one side of the main sliding block (3). One end of the second adjusting screw (6) is rotatably connected to the driven wheel connecting seat (5). Multiple sliding rods (7) are slidably connected into one side of the main sliding block (3). One end of the sliding rod (7) is fixedly connected to the driven wheel connecting seat (5).

2. The track frame for a large excavator according to claim 1, characterized in that, One end of the driven wheel connecting seat (5) is rotatably inserted with a rotating shaft (9), and the other end of the rotating shaft (9) is rotatably sleeved with a side block (8). The top and bottom of the side block (8) and the driven wheel connecting seat (5) are integrally formed with a slide bar (10).

3. A large excavator track frame according to claim 2, characterized in that, Both ends of the track frame body (1) are provided with guide grooves (11), and the slide bar (10) slides in the guide grooves (11).

4. A large excavator track frame according to claim 1, characterized in that, The track frame body (1) has multiple upper mounting slots (12) on its top and two lower mounting slots (13) on its bottom.

5. A large excavator track frame according to claim 1, characterized in that, One end of the track frame body (1) is provided with a drive wheel mounting groove (14), and the other end of the track frame body (1) is provided with a driven wheel mounting groove (15).

6. A large excavator track frame according to claim 1, characterized in that, One end of the first adjusting screw (4), the second adjusting screw (6) and the sliding rod (7) are all fixedly connected to a connecting screw (19), and the other end of the connecting screw (19) is threaded with a first fastening nut (18) and a second fastening nut (20).

7. A large excavator track frame according to claim 6, characterized in that, A connecting frame (16) and a support plate (17) are fixedly connected between the two track frame bodies (1).

8. A large excavator track frame according to claim 7, characterized in that, One end of the connecting screw (19) passes through the connecting frame (16) and the support plate (17), and the support plate (17) is located between the first fastening nut (18) and the second fastening nut (20).

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