Excavator chain falling prevention testing device

Abstract

The utility model discloses an excavator anti-falling chain testing device, which comprises a shell, a testing base is arranged in an inner cavity of the shell, two groups of testing mechanisms are arranged at the bottom of the inner cavity of the shell, each testing mechanism comprises a driving assembly, a special-shaped block conversion assembly is arranged at the top end of each driving assembly, and the special-shaped block conversion assembly is connected with the testing base. The conversion assembly is provided with a plurality of special-shaped blocks, and the test base is provided with through holes for the special-shaped blocks to pass through. The shell is provided with a through hole, each special-shaped block can independently penetrate through the through hole, supporting strips are welded to the wall of an inner cavity of the shell, and the two ends of the testing base are lapped on the two supporting strips respectively. The excavator testing device relates to the technical field of excavator testing, and the positions and the heights of the special-shaped blocks can be adjusted through the two electric push rods; therefore, the stress strength and the breaking point are tested; and the special-shaped block in the corresponding shape is rotated to the top, so that the special-shaped block can be quickly replaced, and the special-shaped block is more quickly replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to excavator test technical field, concretely is a kind of excavator anti chain-off testing device. BACKGROUND

[0002] The utility model discloses a caterpillar type excavator anti chain-off testing device, including test base, side plate, vertical plate, transverse through slot, longitudinal through slot and motor, the side plate is fixed in test base front surface and rear surface by welding, the transverse through slot and longitudinal through slot are all set up on test base upper surface, two slide tables and vertical plate are provided in test base, the vertical plate is fixed in slide table left side in the transverse through slot lower side, the slide table upper surface is fixed with hydraulic push rod, the hydraulic push rod upper surface is fixed with external thread column, the external thread column upper end is connected with special-shaped block, the motor is fixed in test base inside upper surface, the motor one end output shaft is fixed with screw rod, the screw rod is passed through slide table and is connected with vertical plate right surface.The vertical plate is fixed in slide table rear side in the longitudinal through slot lower side, the motor is fixed in slide table front side in the longitudinal through slot lower side, the slide table rear end is connected with screw rod, the screw rod is passed through slide table and extends to vertical plate front surface.The special-shaped block lower end is fixed with internal thread pipe, the external thread column is extended to internal thread pipe by thread.The motor and hydraulic push rod are electrically connected with external power supply and external control switch respectively.The position of slide table is adjusted by motor, the position of special-shaped block is adjusted, the height of hydraulic push rod is adjusted, so as to test stress intensity and fracture point, the detachable connection between special-shaped block and external thread column can replace different shapes of special-shaped block for testing, greatly restore the situation when breaking, the different setting of transverse through slot and longitudinal through slot is convenient for the simultaneous test of two caterpillar belts, so as to improve the test efficiency.

[0003] The above patent has the following deficiencies:

[0004] The shape of the special-shaped block is fixed, but when different shapes of special-shaped blocks need to be replaced, the old special-shaped block needs to be disassembled and the new special-shaped block needs to be installed, so the special-shaped block cannot be quickly replaced. Utility model content

[0005] In view of the problems existing in the prior art, the utility model is proposed.

[0006] Therefore, the utility model aims to provide an excavator anti chain-off testing device, which solves the problem that the shape of the special-shaped block in the above patent is fixed, but when different shapes of special-shaped blocks need to be replaced, the old special-shaped block needs to be disassembled and the new special-shaped block needs to be installed, so the special-shaped block cannot be quickly replaced.

[0007] To solve the above technical problems, according to one aspect of the present application, the present application provides the following technical scheme:

[0008] A kind of excavator anti chain test device, including shell, test base is installed in the inner cavity of the shell, two groups of test mechanism are installed in the inner cavity bottom of the shell, the test mechanism includes drive assembly, drive assembly top is equipped with special-shaped block conversion component, the conversion component has multiple special-shaped blocks on it, test base is equipped with the through hole for special-shaped block to pass through;

[0009] Each of the special-shaped blocks can independently pass through the through hole.

[0010] As a preferred scheme of the excavator anti chain test device of the present application, wherein: the inner cavity wall of the shell is welded with support bar, the two ends of the test base are respectively placed on the two support bars, and the corresponding positions of the support bar and the test base are all provided with internal thread holes, and the support bar and the test base are fixed by bolts.

[0011] As a preferred scheme of the excavator anti chain test device of the present application, wherein: the special-shaped block conversion component includes U-shaped support frame, the U-shaped support frame is rotatably connected with rotating shaft through bearing, a plurality of support rods are welded on the rotating shaft, the special-shaped blocks are welded on the support rods, and the support rods and the U-shaped support frame are fixed by the bolt.

[0012] As a preferred scheme of the excavator anti chain test device of the present application, wherein: the support rod is provided with a first through hole, the U-shaped support frame is provided with a second through hole matched with the first through hole, and the bolt passes through the first through hole and the second through hole.

[0013] As a preferred scheme of the excavator anti chain test device of the present application, wherein: the drive assembly includes a first hydraulic push rod mounted on the inner wall of the shell, the distal end of the first hydraulic push rod is connected with an L-shaped moving plate, the L-shaped moving plate is fixedly provided with a support seat, the top of the support seat is provided with a second hydraulic push rod, and the top end of the second hydraulic push rod is connected with the U-shaped support frame.

[0014] As a preferred scheme of the excavator anti chain test device of the present application, wherein: the bottom of the U-shaped support frame is welded with a first support connecting seat, the top end of the second hydraulic push rod is inserted into the first support connecting seat, and the first support connecting seat and the second hydraulic push rod are fixed by bolts;

[0015] The L-shaped moving plate is welded with a second support connecting seat, the first hydraulic push rod is inserted into the inner wall of the second support connecting seat, and the first hydraulic push rod and the second support connecting seat are fixed by bolts.

[0016] Compared with existing technologies:

[0017] The position and height of the irregular block can be adjusted by two electric push rods, thereby testing the stress strength and fracture point; by rotating the irregular block to the top of the corresponding shape, the irregular block can be quickly replaced, making the replacement of irregular blocks more convenient. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the present invention;

[0019] Figure 2 Provided by this utility model Figure 1 A magnified view of a portion of the image;

[0020] Figure 3 Provided by this utility model Figure 1 Top view;

[0021] Figure 4 Provided by this utility model Figure 1 A sectional view.

[0022] In the figure: 1. Housing; 2. Test base; 3. Support bar; 4. First hydraulic push rod; 6. Second support connecting seat; 7. L-shaped moving plate; 8. Support seat; 9. Second hydraulic push rod; 10. U-shaped support frame; 11. First support connecting seat; 12. Pin; 13. Support rod; 131. First through hole; 14. Irregular block; 15. Through hole; 16. Slide groove; 17. Slider; 18. Rotating shaft. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] This utility model provides an excavator chain anti-derailment testing device. Please refer to [link / reference]. Figures 1-4 The device includes a housing 1, a test base 2 installed in the inner cavity of the housing 1, two sets of test mechanisms installed at the bottom of the inner cavity of the housing 1, and a drive assembly. A shaped block conversion assembly is installed at the top of the drive assembly. The conversion assembly has multiple shaped blocks 14. The test base 2 has through holes 15 for the shaped blocks 14 to pass through. Each shaped block 14 can pass through the through hole 15 independently.

[0025] Support bars 3 are welded to the inner wall of the housing 1. The two ends of the test base 2 rest on the two support bars 3 respectively. The support bars 3 and the test base 2 are provided with internal threaded holes at corresponding positions. The support bars 3 and the test base 2 are fixed together by bolts.

[0026] The irregular block conversion assembly includes a U-shaped support frame 10, on which a rotating shaft 18 is rotatably connected via bearings. Multiple support rods 13 are welded onto the rotating shaft 18. Irregular blocks 14 are welded onto the support rods 13. The support rods 13 and the U-shaped support frame 10 are fixed together by pins 12. By removing the pins 12 and rotating the rotating shaft 18, any irregular block 14 can be positioned at the top, thus enabling quick replacement of irregular blocks 14 of different shapes.

[0027] The support rod 13 has a first through hole 131, and the U-shaped support frame 10 has a second through hole that matches the first through hole 131. The pin 12 passes through the first through hole 131 and the second through hole.

[0028] The drive assembly includes a first hydraulic push rod 4 mounted on the inner wall of the housing 1. An L-shaped movable plate 7 is connected to the end of the first hydraulic push rod 4. A groove 16 is formed on the bottom wall of the inner cavity of the housing 1. A slider 17 is welded to the bottom of the L-shaped movable plate 7. The slider 17 is slidably connected to the inner wall of the groove 16. A support seat 8 is fixedly mounted on the L-shaped movable plate 7. A second hydraulic push rod 9 is mounted on the top of the support seat 8. Specifically, a second support connecting seat 6 is welded to the L-shaped movable plate 7. The first hydraulic push rod 4 is inserted into the inner wall of the second support connecting seat 6. The first hydraulic push rod 4 and the second hydraulic push rod 9... The two support connecting seats 6 are fixed together by bolts. The top end of the second hydraulic push rod 9 is connected to the U-shaped support frame 10. Specifically, the bottom of the U-shaped support frame 10 is welded with the first support connecting seat 11. The top end of the second hydraulic push rod 9 is inserted into the first support connecting seat 11, and the first support connecting seat 11 and the second hydraulic push rod 9 are fixed together by bolts. The L-shaped moving plate 7 can be moved by the first hydraulic push rod 4, thereby realizing the adjustment of the position of the irregular block 4. The height of the irregular block 14 can be adjusted by the extension and retraction of the second hydraulic push rod 9.

[0029] In practical use, first move the tracked excavator to the upper surface of the test base 2, remove the pin 12, rotate the rotating shaft 18 so that the required irregular block 14 is at the top, and then use the pin 12 to fix the support rod 13 at the bottom to the U-shaped support frame 10.

[0030] The L-shaped moving plate 7 can be moved by the first hydraulic push rod 4, thereby adjusting the position of the irregular block 4. The height of the irregular block 14 can be adjusted by the extension and retraction of the second hydraulic push rod 9.

[0031] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An excavator chain anti-derailment testing device, comprising a housing (1), wherein a test base (2) is installed in the inner cavity of the housing (1), and two sets of testing mechanisms are installed at the bottom of the inner cavity of the housing (1), characterized in that: The testing mechanism includes a driving component, and a shaped block conversion component is installed at the top of the driving component. The conversion component has multiple shaped blocks (14) and a through hole (15) on the test base (2) for the shaped blocks (14) to pass through. Each of the irregular blocks (14) can pass through the through hole (15) independently.

2. The excavator chain anti-derailment testing device according to claim 1, characterized in that, The inner wall of the housing (1) is welded with a support strip (3). The two ends of the test base (2) are respectively placed on the two support strips (3). The support strips (3) and the test base (2) are provided with internal thread holes at corresponding positions. The support strips (3) and the test base (2) are fixed together by bolts.

3. The excavator chain anti-derailment testing device according to claim 1, characterized in that, The irregular block conversion assembly includes a U-shaped support frame (10), on which a rotating shaft (18) is rotatably connected via a bearing. Multiple support rods (13) are welded onto the rotating shaft (18). The irregular block (14) is welded onto the support rods (13). The support rods (13) and the U-shaped support frame (10) are fixed together by pins (12).

4. The excavator chain anti-derailment testing device according to claim 3, characterized in that, The support rod (13) has a first through hole (131), and the U-shaped support frame (10) has a second through hole that matches the first through hole (131). The pin (12) passes through the first through hole (131) and the second through hole.

5. The excavator chain anti-derailment testing device according to claim 2, characterized in that, The drive assembly includes a first hydraulic push rod (4) mounted on the inner wall of the housing (1), the end of the first hydraulic push rod (4) is connected to an L-shaped moving plate (7), a support seat (8) is fixedly mounted on the L-shaped moving plate (7), a second hydraulic push rod (9) is mounted on the top of the support seat (8), and a U-shaped support frame (10) is connected to the top of the second hydraulic push rod (9).

6. The excavator chain anti-derailment testing device according to claim 5, characterized in that, The bottom of the U-shaped support frame (10) is welded with a first support connecting seat (11), the top end of the second hydraulic push rod (9) is inserted into the first support connecting seat (11), and the first support connecting seat (11) and the second hydraulic push rod (9) are fixed together by bolts; The L-shaped movable plate (7) is welded with a second support connecting seat (6), and a first hydraulic push rod (4) is inserted into the inner wall of the second support connecting seat (6). The first hydraulic push rod (4) and the second support connecting seat (6) are fixed together by bolts.

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