Quartering hammer shell convenient for assembling drill rod

Abstract

The utility model discloses a breaking hammer shell convenient for assembling a drill rod, which comprises a side shell I and a side shell II which are symmetrically distributed, the side shell I and the side shell II are symmetrically distributed on two sides of a lower cylinder body, and the side shell I and the side shell II are connected through a bolt; a mounting plate and a hydraulic cylinder are mounted on a side shell, a connecting frame, a supporting ring and a clamping piece on the connecting frame are close to a lower cylinder body through the hydraulic cylinder, and the angle of a flat pin clamping area of the clamping piece is corrected under the action of an extrusion block, so that the flat pin clamping area corresponds to a flat pin groove in position in the assembling direction; the front-back position correspondence of the flat pin clamping area and the flat pin groove can be completed only by setting the length of the assembly end of the drill rod into the lower cylinder body, so that the assembly of the drill rod is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic breaker housings, specifically a hydraulic breaker housing that facilitates the assembly of a chisel rod. Background Technology

[0002] A hydraulic breaker is a machine that converts hydraulic energy into mechanical energy to perform work. It is mainly used for breaking, demolishing, and excavating hard layers, and is usually mounted on excavators, loaders, or power stations. The chisel is an important working component of the breaker, but it needs to have a certain degree of hardness and strength. The chisel is solid and weighs tens or even hundreds of kilograms, making it more difficult to assemble than smaller hydraulic breakers that previously required manual assembly.

[0003] Drill rods are consumable parts and need to be replaced after a period of use. However, there is a lack of corresponding drill rod assembly equipment on the construction site to facilitate the replacement of drill rods. In addition, the drill rods are quite heavy, which makes it difficult to replace them on the construction site. There is an urgent need to solve this problem. Utility Model Content

[0004] The technical problem to be solved by this utility model is:

[0005] How to solve the problem of the difficulty in replacing drill rods at the construction site.

[0006] To solve the above-mentioned technical problems, the inventors of this utility model, through practice and summarization, have derived the technical solution of this utility model, which adopts the following technical solution:

[0007] A hydraulic breaker housing that facilitates the assembly of chisels includes a symmetrically distributed side shell one and a side shell two, which are symmetrically distributed on both sides of the lower cylinder body and are connected by bolts.

[0008] Two sets of mounting plates are installed on the opposite side of side shell one and side shell two. Hydraulic cylinders are installed on the mounting plates. A lifting frame is fixed to the end of the piston rod of the hydraulic cylinder. A support ring is installed on the lifting frame. Two sets of clamping parts are symmetrically distributed on the support ring.

[0009] The ends of side shell one and side shell two are fixed with connecting frames. A fixing ring is installed at the bottom of the connecting frame. Two sets of extrusion blocks are symmetrically distributed on the fixing ring. The extrusion blocks and clamping parts are positioned correspondingly. The extrusion blocks act as clamping parts to correct the angle of the flat pin clamping area of ​​the drill rod.

[0010] In a preferred embodiment, the bottom of the extrusion block is arranged obliquely downward in a direction away from the center of the fixing ring;

[0011] The clamping component includes a fixed seat mounted on the support ring. The fixed seat has an opening 1 on its top and an opening 2 on one side near the center of the support ring. A clamping block is slidably fitted inside the fixed seat. The clamping block is connected to the fixed seat via an elastic element. The top of the clamping block is obliquely downward along the direction away from the center of the support ring.

[0012] In a preferred embodiment, sliding plates are provided on both sides of the clamping block, and guide grooves that slide with the sliding plates are provided on both sides inside the fixing seat, and the elastic element is installed in the guide groove and connected to the sliding plate.

[0013] In a preferred embodiment, the extrusion block includes a fixed part and a movable part, which are vertically slidably fitted together. A guide post is fixed on the movable part, the top of the guide post is slidably fitted inside the fixed part, a spring is fitted on the outside of the guide post, and an anti-reverse groove is provided at the bottom of the movable part.

[0014] The bottom surface of the mounting base is provided with an adapter groove in the middle, and the adapter groove and the anti-reverse groove are positioned and matched.

[0015] In a preferred embodiment, an angle holding assembly is installed on the support ring. The angle holding assembly includes a push cylinder, and a holding roller is installed at the end of the push cylinder. The holding roller is slidably fitted on the support ring.

[0016] In a preferred embodiment, a radially arranged guide bar is installed on the support ring, and an ear plate is provided on the side of the retaining roller, with the guide bar and the ear plate slidingly engaged.

[0017] In a preferred embodiment, the roller surface of the retaining roller has an arc-shaped structure to adapt to the outer wall of the drill rod, and an inner groove is provided at the bottom of the side of the guide bar facing the retaining roller, with the inner groove and the ear plate slidingly engaged.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This utility model uses an installation plate and a hydraulic cylinder installed on the side shell to move the lifting frame, support ring, and clamping parts on it closer to the lower cylinder body. Under the action of the squeezing block, the angle of the clamping parts' flat pin clamping area is corrected, so that the flat pin clamping area and the flat pin groove are aligned in the assembly direction. Only the length of the assembly end of the chisel inserted into the lower cylinder body needs to be given to complete the front and rear alignment of the flat pin clamping area and the flat pin groove, which facilitates the assembly of the chisel.

[0020] 2. This utility model has a pressing block installed on the fixing ring. By utilizing the corresponding positions of the pressing block and the clamping block, which are close to or far from each other, the clamping block can be retracted and moved outward. When it moves outward, it can enter the flat pin clamping area, and the angle of that position can be corrected, thereby realizing the angle adjustment during the assembly of the drill rod.

[0021] 3. Due to the large weight of the drill rod, the clamping block needs to maintain its position for a certain period of time after clamping and correction. The clamping block is composed of a fixed part and a movable part. After the clamping block is adjusted into place, the movable part will prevent the clamping block from retracting, thereby ensuring the stability of the structure.

[0022] 4. If this utility model only uses clamping blocks to ensure accurate assembly, the angle of the chisel may easily shift after the clamping blocks and the chisel separate. Before quickly separating the chisel, using retaining rollers can ensure that the chisel does not rotate, thereby ensuring that the angle does not deviate during axial assembly. Attached Figure Description

[0023] Figure 1 This is a front view of the overall structure of this utility model;

[0024] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0025] Figure 3 This is a schematic diagram of the extrusion block of this utility model;

[0026] Figure 4 for Figure 2 Diagram of the fit structure between the central anti-reverse tooth groove and the tooth groove strip;

[0027] Figure 5 This is a structural diagram of the clamping block of this utility model;

[0028] Figure 6 This is a structural diagram of the fixing base of this utility model;

[0029] Figure 7 This is a side view of the overall structure of this utility model;

[0030] Figure 8 A state diagram of the clamping block straightening flat pin mounting area;

[0031] Figure 9 This is a top view of the support ring of this utility model;

[0032] Figure 10 for Figure 9 A magnified view of a section at point B in the middle;

[0033] Figure 11 This is a structural diagram of the retaining roller of this utility model.

[0034] In the diagram: 10. Side shell one; 20. Side shell two; 30. Lower cylinder body; 40. Mounting plate; 41. Hydraulic cylinder; 42. Support ring; 43. Clamping component; 431. Fixed seat; 432. Opening one; 433. Opening two; 434. Elastic component; 435. Clamping block; 436. Sliding plate; 437. Guide groove; 44. Lifting frame; 50. Connecting frame; 51. Fixed ring; 52. Extrusion block; 521. Fixed part; 522. Moving part; 523. Guide column; 524. Spring component; 525. Anti-reverse tooth groove; 526. Adaptive tooth groove; 527. Pushing cylinder; 528. Holding roller; 529. Guide bar; 60. Chisel rod. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0036] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Example 1

[0038] like Figure 1 , 2 As shown in Figures 7 and 8, a breaker housing for easy assembly of a chisel includes symmetrically distributed side shells 10 and 20. The side shells 10 and 20 are symmetrically distributed on both sides of the lower cylinder 30 and are connected by bolts.

[0039] Two sets of mounting plates 40 are installed on the opposite side of side shell 10 and side shell 20. A hydraulic cylinder 41 is installed on the mounting plate 40. A lifting frame 44 is fixed to the piston rod end of the hydraulic cylinder 41. A support ring 42 is installed on the lifting frame 44. Two sets of clamping parts 43 are symmetrically distributed on the support ring 42.

[0040] The connecting frame 50 is fixed to the bottom of the first side shell 10 and the second side shell 20. A fixing ring 51 is installed at the bottom of the connecting frame 50. Two sets of pressing blocks 52 are symmetrically distributed on the fixing ring 51. The pressing blocks 52 and the clamping member 43 are in corresponding positions. The pressing blocks 52 act on the clamping member 43 to correct the angle of the flat pin clamping area of ​​the drill rod 60.

[0041] The bottom of the extrusion block 52 is obliquely downward along a direction away from the center of the fixing ring 51;

[0042] The clamping member 43 includes a fixed seat 431 mounted on the support ring 42. The fixed seat 431 has an opening 432 on its top and an opening 433 on one side near the center of the support ring 42. A clamping block 435 is slidably fitted inside the fixed seat 431. The clamping block 435 is connected to the fixed seat 431 via an elastic member 434. The top of the clamping block 435 is obliquely downward in a direction away from the center of the support ring 42. The inner diameter of the support ring 42 and the fixed ring 51 is larger than the outer diameter of the drill rod 60.

[0043] During on-site replacement, the hydraulic breaker is mounted on the excavator's robotic arm. The tracks apply pressure to the breaking end of the new chisel 60. Due to the conical structure of the breaking end, the assembly end tilts upwards. The assembly opening of the lower cylinder 30 from which the old chisel was removed is aligned with the axis of the chisel 60. The robotic arm is adjusted, and the assembly end of the chisel 60 is pushed along the axial direction through the support ring 42 and the fixing ring 52 until it partially enters the assembly opening. The tracks release the breaking end of the chisel 60, and the piston rod of the hydraulic cylinder 41 retracts, causing the lifting frame 44 to move upwards and approach the connecting frame 50. Under the action of the pressing block 52, the clamping block 435 moves closer to the center of the support ring 42, thereby correcting the angle position of the chisel 60 at the flat pin clamping area, so that the flat pin clamping area and the flat pin groove are aligned along the assembly direction. The hydraulic cylinder 41 drives the lifting frame 44 to reset, and the clamping block 435 is reset under the action of the elastic element 434. The mechanical arm is adjusted so that the length of the assembly end entering the assembly opening is the set length. At this time, the front and rear positions of the flat pin groove and the flat pin clamping area are aligned. The flat pin is assembled in the flat pin groove and the cross pin is installed to constrain the flat pin.

[0044] Example 2

[0045] In the scheme of Example 1, such as Figure 2 , 3 As shown in 4, 5, 6, and 7, the clamping block 435 is provided with sliding plates 436 on both sides, and the fixed base 431 is provided with guide grooves 437 on both sides inside, which slide and cooperate with the sliding plates 436. The elastic element 434 is installed in the guide grooves 437 and connected to the sliding plates 436 to ensure the stable operation of the clamping block 435 during inward and outward movement.

[0046] Example 3

[0047] In the embodiment 1, an angle holding assembly is installed on the support ring 42. The angle holding assembly includes four push cylinders 527, arranged in pairs. A holding roller 528 is installed at the end of the push cylinder 527, and the holding roller 528 is slidably engaged on the support ring 42.

[0048] Since the angle of the chisel 60 may deviate during subsequent assembly operations after the clamping block 435 disengages from the chisel 60, the angle of the chisel 60 is limited by the push cylinder 527 before the clamping block 435 and the flat pin clamping area are separated to ensure accurate insertion.

[0049] The implementation method of Example 1 is partially adjusted. Since there is an assembly gap between the assembly port and the chisel 60, in order to reduce the hydraulic oil pressure on the jacking cylinder 527, after the clamping block 435 corrects the angle of the flat pin clamping area, the robotic arm is adjusted so that the chisel 60 is in a vertical state and the bottom is off the ground. Then, the axis of the chisel 60 and the axis of the assembly port are always aligned by the holding roller 528. The robotic arm is adjusted to keep the breaker hammer vertically downward until the bottom of the chisel 60 contacts the ground. The clamping block 435 is completely disengaged from the chisel 60. The robotic arm is adjusted to keep the breaker hammer vertically downward until the length of the assembly end entering the assembly port is the set length. At this time, the front and rear positions of the flat pin groove and the flat pin clamping area are corresponding. The flat pin is assembled in the flat pin groove and the horizontal pin is installed to constrain the flat pin.

[0050] Example 4

[0051] In the scheme of embodiment 3, such as Figure 2 , 3 As shown in Figure 4, the extrusion block 52 includes a fixed part 521 and a movable part 522. The fixed part 521 and the movable part 522 are vertically slidably engaged. A guide post 523 is fixed on the movable part 522. The top of the guide post 523 is slidably engaged in the fixed part 521. A spring member 524 is fitted on the outside of the guide post 523. An anti-retraction groove 525 is provided at the bottom of the movable part 522.

[0052] The bottom surface of the fixing base 431 is provided with an adapter groove 526, and the adapter groove 526 and the anti-retraction groove 525 are positioned and adapted to each other.

[0053] Since the bottom of the drill rod 60 is off the ground, the drill rod 60 will press against the clamping block 435, and then transfer to the piston rod of the hydraulic cylinder 41. After the moving part 522 corrects the angle of the clamping block 435 in the flat pin clamping area, it will constrain it to prevent it from falling back, thereby ensuring the stability of the structure.

[0054] Example 5

[0055] In the scheme of embodiment 3, such as Figure 9 , 10 As shown, in order to ensure the stable operation of the roller 528, a radially arranged guide bar 529 is installed on the support ring 42, and an ear plate is provided on the side of the roller 528. The guide bar 529 and the ear plate are slidably engaged.

[0056] Example 6

[0057] In the scheme of embodiment 3, such as Figure 9 , 10 As shown in Figure 11, in order to ensure the stable operation of the retaining roller 528 and not interfere with the assembly of the relative drill rod 60, the roller surface of the retaining roller 528 is an arc-shaped structure to adapt to the outer wall of the drill rod 60. The bottom of the guide bar 529 facing the retaining roller 528 is provided with an inner groove, and the inner groove and the ear plate slide together.

[0058] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A breaking hammer housing for facilitating assembly of a drill rod, comprising a side housing one (10) and a side housing two (20) symmetrically distributed on both sides of a lower cylinder body (30), the side housing one (10) and the side housing two (20) being connected by bolts. Characterized in that; The side shell one (10) and the side shell two (20) are provided with two groups of installation plates (40) on the side opposite to each other, the installation plates (40) are provided with hydraulic cylinders (41), the piston rod end of the hydraulic cylinder (41) is fixed with a lifting frame (44), the lifting frame (44) is provided with a supporting ring (42), the supporting ring (42) is symmetrically provided with two groups of clamping pieces (43); The end of the side shell one (10) and the side shell two (20) is fixed with a connecting frame (50), the bottom of the connecting frame (50) is provided with a fixed ring (51), the fixed ring (51) is symmetrically provided with two groups of extrusion blocks (52), the extrusion blocks (52) and the clamping pieces (43) are in position correspondence, and the extrusion blocks (52) act on the clamping pieces (43) to correct the angle of the flat pin clamping area of the drill rod (60).

2. A breaking hammer housing for facilitating assembly of a drill rod according to claim 1, characterized in that The bottom of the extrusion block (52) is obliquely downwardly provided away from the center of the fixed ring (51); The clamping piece (43) comprises a fixed seat (431) mounted on the supporting ring (42), the top of the fixed seat (431) is provided with an opening one (432), and the side close to the center of the supporting ring (42) is provided with an opening two (433), the fixed seat (431) is slidably provided with a clamping block (435), the clamping block (435) is connected in the fixed seat (431) through an elastic piece (434), and the top of the clamping block (435) is obliquely downwardly provided away from the center of the supporting ring (42).

3. A breaking hammer housing for facilitating assembly of a drill rod according to claim 2, characterized in that The two sides of the clamping block (435) are provided with sliding plates (436), the inside of the fixed seat (431) is provided with guide grooves (437) in sliding fit with the sliding plates (436), and the elastic piece (434) is mounted in the guide grooves (437) and connected with the sliding plates (436).

4. A breaking hammer housing for facilitating assembly of a drill rod according to any one of claims 1 to 3, characterized in that The supporting ring (42) is provided with an angle maintaining assembly, the angle maintaining assembly comprises a pushing oil cylinder (527), and the end of the pushing oil cylinder (527) is provided with a maintaining roller (528) in sliding fit on the supporting ring (42).

5. A breaking hammer housing for facilitating assembly of a drill rod according to claim 4, characterized in that The extrusion block (52) comprises a fixed part (521) and a movable part (522), the fixed part (521) and the movable part (522) are vertically slidably fitted, the movable part (522) is fixedly provided with a guide column (523), the top of the guide column (523) is slidably fitted in the fixed part (521), the outer side of the guide column (523) is sleeved with a spring piece (524), and the bottom of the movable part (522) is provided with a tooth groove (525) for preventing retreat; The middle of the bottom surface of the fixed seat (431) is provided with an adaptive tooth groove (526), the adaptive tooth groove (526) and the tooth groove (525) for preventing retreat are in position correspondence and adaptation.

6. A breaking hammer housing for facilitating assembly of a drill rod according to claim 5, characterized in that The supporting ring (42) is provided with a radially arranged guide strip (529), the side of the maintaining roller (528) is provided with an ear plate, and the guide strip (529) and the ear plate are in sliding fit.

7. A breaking hammer housing for facilitating assembly of a drill rod according to claim 6, characterized in that The roller surface of the maintaining roller (528) is in arc structure for adapting to the outer wall of the drill rod (60), the bottom of the side of the guide strip (529) facing the maintaining roller (528) is provided with an inner recess, and the inner recess and the ear plate are in sliding fit.

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