Side clamping type excavator hammer

Abstract

The invention relates to the technical field of engineering construction equipment, in particular to a side clamping type excavator hammer which comprises a mounting frame and a vibration excitation box arranged on the mounting frame, a deflection arm is hinged to the vibration excitation box, a clamping arm is detachably connected to the deflection arm, an inner rod and a sleeve rod are coaxially and rotatably arranged on the deflection arm in a penetrating mode, and the sleeve rod is arranged outside the inner rod in a sleeving mode. Ratchet wheels are arranged on the inner rod and the sleeve rod respectively, a housing covering the ratchet wheels is arranged on the deflection arm, a deflection groove is formed in the housing, a fastening bolt slides in the deflection groove, a pawl engaged with the ratchet wheels is hinged to the fastening bolt, a pressure spring is supported between the pawl and the side wall of the housing, and the inner rod and the sleeve rod extend out of the housing; inserting grooves are formed in the deflection arms, inserting blocks used for being inserted into the inserting grooves are arranged on the clamping arms, and clamping plates used for clamping the inserting blocks are arranged on the inner rod and the sleeve rod. The clamping device has the effect of being suitable for clamping different objects.

Description

Technical Field

[0001] This application relates to the field of engineering construction equipment technology, and in particular to a side-clamping excavator hammer. Background Technology

[0002] A breaker hammer typically refers to a hydraulic breaker mounted on an excavator for crushing operations; it is also called a hydraulic hammer or breaker hammer. Its core principle is to use a hydraulic system to drive a piston in reciprocating motion, which strikes the chisel at high frequency, transferring energy to the surface of the material to achieve crushing.

[0003] The related technology discloses a hydraulic excavator hammer, including a mounting frame and a vibration box connected to the mounting frame by multiple spring cylinders. Two deflection arms are hinged on the vibration box and are linked by a hydraulic cylinder. Each of the two deflection arms is integrally formed with a clamping arm for clamping objects.

[0004] The existing deflection arm and clamping arm are integrally molded, so they are usually only suitable for clamping one or a few objects, which is quite limited and has obvious shortcomings. Summary of the Invention

[0005] To improve the applicability of clamping different objects, this application provides a side-clamping excavator hammer.

[0006] The side-clamping excavator hammer provided in this application adopts the following technical solution: A side-clamping excavator hammer includes a mounting frame and a vibration box arranged on the mounting frame. A deflection arm is hinged to the vibration box, and a clamping arm is detachably connected to the deflection arm. An inner rod and a sleeve rod are coaxially rotatably arranged on the deflection arm, and the sleeve rod is sleeved outside the inner rod. Ratchets are arranged on the inner rod and the sleeve rod respectively. A cover is arranged on the deflection arm covering the ratchet. An offset groove is opened on the cover, and a fastening bolt slides in the offset groove. A pawl for engaging with the ratchet is hinged on the fastening bolt. A compression spring supports the pawl between it and the side wall of the cover. Both the inner rod and the sleeve rod extend outside the cover. A slot is opened on the deflection arm, and a plug for inserting into the slot is arranged on the clamping arm. Clamping plates for holding the plug are arranged on both the inner rod and the sleeve rod.

[0007] By adopting the above technical solution, the worker inserts the plug into the corresponding slot, and then rotates the inner rod and sleeve rod in both directions to make the ratchet and the corresponding pawl tightly engage. In this way, the inner rod and sleeve rod drive the corresponding clamping plate to hold the plug, thereby realizing the detachable connection between the deflection arm and the clamping arm, which makes it convenient to change different clamping arms for different documents.

[0008] Optionally, the cover has an opening on its side wall, and an elastic sheet is provided on the outside of the cover to cover the opening. The compression spring supports the elastic sheet, and the cover has a side sliding groove communicating with the opening. The end of the elastic sheet is bolted into the side sliding groove.

[0009] By adopting the above technical solution, the worker loosens the bolt at the end of the elastic plate and at the same time loosens the fastening bolt, thereby causing the pawl to disengage from the corresponding ratchet.

[0010] Optionally, an anti-detachment clip is provided at the connection between the side slide groove and the opening.

[0011] Optionally, the end of the inner rod has an internal hexagonal groove, and the outer side wall of the end of the sleeve rod is external hexagonal.

[0012] Optionally, the inserts and slots are arranged in multiple sets at intervals on the deflection arm.

[0013] Optionally, spiral-shaped lubrication grooves are formed on the outer walls of both the inner rod and the sleeve rod.

[0014] Optionally, the cross-section of the clamping plate on the inner rod and sleeve rod that holds the insert is circular.

[0015] In summary, this application includes the following beneficial technical effects: the worker inserts the plug into the corresponding slot, and then rotates the inner rod and sleeve rod in both directions to make the ratchet and the corresponding pawl tightly engage. In this way, the inner rod and sleeve rod drive the corresponding clamping plate to hold the plug, thereby realizing the detachable connection between the deflection arm and the clamping arm, which facilitates the replacement of different clamping arms for different documents. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0017] Figure 2 This is a cross-sectional view showing the positional relationship between the deflection arm and the clamping arm in an embodiment of this application.

[0018] Figure 3 This is an exploded view of the housing, inner rod, and pawl in an embodiment of this application.

[0019] Explanation of reference numerals in the attached diagram: 1. Mounting bracket; 2. Vibration box; 3. Deflection arm; 31. Slot; 4. Clamping arm; 5. Inner rod; 51. Socket; 6. Sleeve rod; 7. Ratchet; 8. Cover; 81. Offset groove; 82. Side sliding groove; 9. Fastening bolt; 10. Pad; 11. Compression spring; 12. Insert block; 13. Clamping plate; 14. Elastic sheet; 15. Anti-detachment clip. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0021] This application discloses a side-clamping excavator hammer.

[0022] Reference Figure 1 The side-clamping excavator hammer includes a mounting frame 1, an excitation box 2 bolted to the mounting frame 1 by multiple spring cylinders, a deflection arm 3 hinged to the excitation box 2, and a clamping arm 4 detachably connected to the deflection arm 3.

[0023] Reference Figure 1 and Figure 2 An inner rod 5 and a sleeve rod 6 are coaxially mounted on the deflection arm 3. The sleeve rod 6 is fitted over the inner rod 5. Both the inner rod 5 and the sleeve rod 6 have spiral-shaped lubrication grooves (not shown in the figure) on their outer side walls. Workers manually add lubricating oil to the lubrication grooves to improve the smoothness of the rotation of the inner rod 5 and the sleeve rod 6 on the deflection arm 3. Both the inner rod 5 and the sleeve rod 6 are welded with ratchet 7 near their ends. A cover 8 is bolted to the deflection arm 3 and covers the ratchet 7. An offset groove 81 is opened on the cover 8, and each ratchet 7 corresponds to an offset groove 81.

[0024] A fastening bolt 9 slides in the offset groove 81. A pawl 10 is hinged to the fastening bolt 9 for engaging with the ratchet 7. A fastening nut is threaded onto the fastening bolt 9 to abut against the outer wall of the cover 8. A compression spring 11 supports the pawl 10 and the side wall of the cover 8.

[0025] Reference Figure 1 and Figure 2 The ends of the inner rod 5 and the sleeve rod 6 both extend outside the cover 8. The end face of the inner rod 5 is provided with an internal hexagonal groove 51, and the outer side wall of the end of the sleeve rod 6 is external hexagonal.

[0026] Reference Figure 1 and Figure 2 The deflection arm 3 has multiple slots 31, and the clamping arm 4 has multiple plugs 12 welded on it. Each plug 12 corresponds to a slot 31 and is plugged in.

[0027] Reference Figure 1 and Figure 2 Both the inner rod 5 and the sleeve rod 6 are welded with clamping plates 13 for holding the insert 12. The sleeve rod 6 is provided with a relief groove to avoid the rotation of the clamping plate 13 on the inner rod 5. The cross section of the clamping plate 13 on the inner rod 5 and the sleeve rod 6 for holding the insert 12 is circular.

[0028] Reference Figure 1 and Figure 2The worker inserts the plug 12 into the corresponding slot 31, and then rotates the inner rod 5 and the sleeve rod 6 in both directions to make the ratchet 7 and the corresponding pawl 10 tightly engage. In this way, the inner rod 5 and the sleeve rod 6 drive the corresponding clamping plate 13 to clamp the plug 12, thereby realizing the detachable connection between the deflection arm 3 and the clamping arm 4, which makes it convenient to replace different clamping arms 4 for different documents.

[0029] Reference Figure 1 and Figure 2 The cover 8 has an opening on its side wall, and an elastic piece 14 for covering the opening is riveted to the outside of the cover 8. A compression spring 11 supports the elastic piece 14. The cover 8 has a side sliding groove 82 that communicates with the opening, and the end of the elastic piece 14 is bolted into the side sliding groove 82.

[0030] During the loosening process, the worker loosens the bolt at the end of the elastic plate 14 and at the same time loosens the fastening nut, thereby causing the pawl 10 to disengage from the corresponding ratchet 7.

[0031] Reference Figure 1 and Figure 2 The side slide groove 82 and the opening are integrally formed with an anti-disengagement clip 15. The anti-disengagement clip 15 plays a limiting role on the end of the elastic piece 14, making it easy for the worker to release the pawl 10 from the ratchet 7.

[0032] In actual use, the deflection arm 3 and the clamping arm 4 can also be connected by bolts, but in order to ensure the connection strength, multiple sets of bolts and nuts need to be used together.

[0033] The implementation principle of a side-clamping excavator hammer in this application embodiment is as follows: the worker inserts the insert block 12 into the corresponding slot 31, and then rotates the inner rod 5 and the sleeve rod 6 in both directions, so that the ratchet 7 and the corresponding pawl 10 are tightly engaged. In this way, the inner rod 5 and the sleeve rod 6 drive the corresponding clamping plate 13 to clamp the insert block 12, thereby realizing the detachable connection between the deflection arm 3 and the clamping arm 4, which facilitates the replacement of different clamping arms 4 for different documents.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A side-clamping excavator hammer, comprising a mounting frame (1) and a vibration box (2) arranged on the mounting frame (1), wherein a deflection arm (3) is hinged to the vibration box (2), and a clamping arm (4) is detachably connected to the deflection arm (3), characterized in that: An inner rod (5) and a sleeve rod (6) are coaxially rotatably mounted on the deflection arm (3). The sleeve rod (6) is sleeved outside the inner rod (5). Ratchets (7) are respectively arranged on the inner rod (5) and the sleeve rod (6). A cover (8) is arranged on the deflection arm (3) and covers the ratchet (7). An offset groove (81) is opened on the cover (8). A fastening bolt (9) slides in the offset groove (81). A device for hinged fastening is connected to the fastening bolt (9). A pawl (10) engages with the ratchet (7), and a compression spring (11) supports the pawl (10) against the side wall of the cover (8). The inner rod (5) and the sleeve rod (6) both extend outside the cover (8). A slot (31) is provided on the deflection arm (3), and a plug (12) for inserting into the slot (31) is arranged on the clamping arm (4). A clamping plate (13) for clamping the plug (12) is arranged on both the inner rod (5) and the sleeve rod (6).

2. The side-clamping excavator hammer according to claim 1, characterized in that: The cover (8) has an opening on its side wall. An elastic sheet (14) is provided on the outside of the cover (8) to cover the opening. The compression spring (11) supports the elastic sheet (14). The cover (8) has a side sliding groove (82) that communicates with the opening. The end of the elastic sheet (14) is bolted into the side sliding groove (82).

3. The side-clamping excavator hammer according to claim 2, characterized in that: The side slide groove (82) is provided with an anti-detachment clip (15) at the connection between the opening and the side slide groove (82).

4. The side-clamping excavator hammer according to claim 1, characterized in that: The end of the inner rod (5) has an internal hexagonal groove (51), and the outer side wall of the end of the sleeve rod (6) is external hexagonal.

5. The side-clamping excavator hammer according to claim 1, characterized in that: The insert (12) and slot (31) are arranged in multiple sets at intervals on the deflection arm (3).

6. The side-clamping excavator hammer according to claim 1, characterized in that: Both the inner rod (5) and the sleeve rod (6) have spiral-shaped lubrication grooves on their outer side walls.

7. The side-clamping excavator hammer according to claim 1, characterized in that: The cross-section of the insert block (12) held by the clamping plate (13) on the inner rod (5) and sleeve rod (6) is circular.

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