CN211898610U - Split type forearm, rock wall and broken rock machine - Google Patents

Abstract

The split type small arm comprises a body and a crushing head; the main body is used for connecting the large arm and the crushing head, the main body is in a water drop shape, the thinner end of the main body is arranged downwards, the end of the main body is provided with a crushing head installation space with a U-shaped longitudinal section, the top of the main body in the crushing head installation space is provided with a first contact surface, and two side surfaces of the U shape are provided with fixing holes for detachably installing and fixing the crushing head; the crushing head is used for the breakage, for class triangle-shaped, the top is equipped with the second contact surface, and in the first installation space of crushing head can be inserted on crushing head upper portion, and first contact surface and second contact surface closely laminated, the fixed orifices on crushing head and the body corresponds the position and is equipped with the fixed orifices, and the fixed orifices that crushing head and body pass through the two can be dismantled and be connected. After the crushing head inserted the U-shaped space, the second contact surface offseted with first contact surface, and both can dismantle the connection through round pin axle or bolt, the utility model discloses shape, structure, technology are all fairly simple, and dismouting, change convenience are with low costs.

Description

Split type forearm, rock wall and broken rock machine

Technical Field

The utility model belongs to the excavating equipment field especially relates to conveniently maintain and change split type forearm, rock-wall and broken rock machine of the broken head of different specifications.

Background

In the integrated small arm (as shown in fig. 7) in the prior art, because the small arm and the crushing head are integrated, if crushing heads with different specifications are needed or the crushing heads are damaged and need to be replaced, the whole small arm needs to be replaced, on one hand, the damage of the crushing heads and the replacement of the whole small arm are intangible, which causes waste and increases cost, and on the other hand, because of the particularity of the engineering machinery, the small arm is heavy, which increases the replacement difficulty and wastes time and labor;

in the split type small arm (as shown in fig. 9) in the prior art, the small arm and the crushing head have more parts, are relatively complex in shape and structure, are relatively complex in corresponding processing and installation, are relatively high in production cost, and are relatively low in production efficiency;

in the operation process of the oil cylinder mounting part 31 'of the large arm (shown in the left half part of fig. 8) in the prior art, because the hardness of rocks is high and the impact force is strong, the oil cylinder mounting part 31' of the large arm is easy to crack and damage, so that the failure rate and the maintenance rate of equipment are improved, and the maintenance cost of the equipment is increased; the impact resistance of the equipment is reduced, and the working efficiency is affected.

Therefore, how to design a forearm with convenient disassembly, assembly and replacement, simple structure and process and low cost becomes a technical problem to be solved urgently in the field; in addition, how to design a rock arm or a breaker to improve the shock resistance of the large arm so as to solve the problem that the oil cylinder mounting part of the large arm is cracked.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses at first aim at solving among the prior art forearm shape, structure, the complicated and with high costs problem of technology, provide a dismouting, change convenience, structure, simple process, low-cost split type forearm, secondly will solve big arm and resist shock poor, the problem of big arm oil cylinder connecting portion fracture provides a high strength rock wall and broken rock machine.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a split type small arm comprises a body and a crushing head;

the main body is used for connecting the large arm and the crushing head, the main body is in a water drop shape, the thinner end of the water drop shape of the main body is arranged downwards, the thinner end is provided with a crushing head installation space with a U-shaped longitudinal section, the main body is provided with a first contact surface at the top of the crushing head installation space, and two side surfaces of the U shape are provided with fixing holes for detachably installing and fixing the crushing head;

the crushing head is used for crushing, the crushing head is triangle-like, the top of the crushing head is provided with a second contact surface, the upper part of the crushing head can be inserted into the installation space of the crushing head, the first contact surface is tightly attached to the second contact surface, the corresponding position of the fixing hole on the body of the crushing head is also provided with a fixing hole, and the crushing head is detachably connected with the body through the fixing holes of the first contact surface and the second contact surface.

Further, the first contact surface and the second contact surface are both planes, or the first contact surface and the second contact surface are both sawtooth surfaces.

Further, the lower middle side of the body is retracted, and when the crushing head is mounted on the body, the outer edge line of the lower middle side of the body is close to the lower side of the crushing head and slightly protrudes out of the extension line of the lower side of the crushing head.

Further, a hoisting mechanism is arranged at the middle upper part of the small arm, and when the crushing head is installed on the body, the hoisting mechanism is positioned outside the body;

and/or the small arm is of a hollow structure, a filling opening is formed in the top surface of the small arm during working, and a discharging opening is formed in the lower part of the bottom surface of the small arm during working.

Furthermore, hoisting machine constructs including connecting rod and recess, the connecting rod is located the opening top of recess to with the recess forms an annular space that is used for inserting the lifting hook.

The utility model provides a rock arm, includes foretell forearm, still includes big arm, the both sides of big arm all are equipped with big arm hydro-cylinder installation reinforcement, the reinforcement is located big arm middle part, and be close to the one end that big arm and forearm are connected.

Further, the reinforcement includes fixed part and hydro-cylinder connecting portion, the fixed part with hydro-cylinder connecting portion smooth connection, the fixed part is the major arc shape, the centre of a circle department of fixed part is equipped with the mounting hole, hydro-cylinder connecting portion are the similar wedge, the middle part of hydro-cylinder connecting portion is equipped with the hydro-cylinder mounting hole, be equipped with the hydro-cylinder mounting hole on the big arm, big arm with the hydro-cylinder mounting hole on the hydro-cylinder connecting portion corresponds each other and link up.

Further, the reinforcement includes the curb plate of two symmetry settings, two curb plate parallel arrangement, be equipped with the connecting plate between two curb plates, the connecting plate perpendicular to the curb plate, the connecting plate is located the edge a week of curb plate.

Furthermore, an auxiliary mounting part is arranged on the outer side of the fixing part of the reinforcing part.

Further, the split type small arm rock breaking machine or the rock arm rock breaking machine is applied.

Compared with the prior art, novel broken rock arm have following advantage:

due to the adoption of the technical scheme:

1. the split type small arm comprises a water drop-like body and a triangular crushing head, the bottom of the body is provided with a U-shaped crushing head mounting space, after the crushing head is inserted into the U-shaped space, a second contact surface at the top of the crushing head is abutted against a first contact surface at the top of the U-shaped space, and the crushing head and the U-shaped space are detachably connected through a pin shaft or a bolt, so that the shape, the structure and the process are simple, the disassembly, the replacement and the cost are convenient;

2. when the first contact surface and the second contact surface are planes, the structure and the processing technology are further simplified, the efficiency is improved, and the cost is reduced; when the first contact surface and the second contact surface are the sawtooth surfaces, on one hand, the contact surfaces are increased, and on the other hand, the meshing of the sawtooth surfaces can improve the bearing capacity of the crushing head, so that the strength of the overall structure during digging of the small arm is improved;

3. the middle lower side of the body is retracted, and the outer edge line of the middle lower side of the body is close to the lower side of the crushing head as much as possible, so that the excavating resistance of the body during crushing can be reduced, and the outer edge line slightly protrudes out of the extension line of the lower side of the crushing head; the connecting strength between the body and the crushing head is improved as much as possible on the premise of ensuring that the excavation resistance is reduced;

4. the arrangement of the hoisting mechanism on the crushing head is convenient for hoisting the crushing head by the hoisting hook when the crushing head is installed, so that the installation efficiency can be improved while the labor is saved;

5. the hoisting mechanism comprises a connecting rod and a groove, the connecting rod is arranged above the opening of the groove, and an annular space for inserting the lifting hook is formed by the connecting rod and the groove, and the hoisting mechanism is simple in structure, convenient to produce and process and low in cost;

6. the two sides of the large arm are provided with the large arm oil cylinder mounting reinforcing members, so that on one hand, the mounting strength of the large arm oil cylinder is improved, the impact resistance is improved, and the large arm is prevented from cracking; on the other hand, both sides are provided with reinforcing parts, the connecting shaft of the large arm oil cylinder connects the large arm oil cylinder to both sides of the large arm through the reinforcing parts on both sides, but does not cross the large arm through a shaft for connection, so that the oil cylinder on which side is broken can be replaced on which side, the oil cylinder on which side is broken can be replaced without moving both sides, time and labor are saved, and the maintenance efficiency is improved; the reinforcing member is arranged in the middle of the large arm and is close to one end, connected with the small arm, of the large arm, so that the oil cylinder connecting part is ensured to be positioned at the gravity center of the large arm, and the working stability is improved;

7. the reinforcing member comprises a fixing part and an oil cylinder connecting part, and the fixing part is arranged, so that the mounting, dismounting and replacement of the reinforcing member are facilitated, and the convenience and efficiency of mounting and dismounting are improved; the fixed part is smoothly connected with the oil cylinder connecting part, so that the structural strength of the reinforcing part is improved, and the large arm is prevented from cracking; the fixing part is in a U-arc shape, and the circle center of the fixing part is provided with the mounting hole, so that the structure is simple, the processing is convenient, and the cost is low; the oil cylinder connecting part is wedge-like, an oil cylinder mounting hole is formed in the middle of the oil cylinder connecting part and penetrates through the large arm, so that the connecting strength of the oil cylinder is further improved, the impact resistance of the large arm is improved, and the large arm is prevented from cracking;

8. the reinforcing member comprises a connecting plate and two symmetrically arranged side plates, is of a frame structure consisting of the connecting plate and the two side plates, and is simple in structure, simple in processing technology and low in cost;

9. the setting of supplementary installation department when the installation reinforcement, plays supplementary fixed action to the reinforcement, makes things convenient for the installation of reinforcement.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic structural view of the small arm of the present invention;

FIG. 2 is a schematic view of the assembled structure of FIG. 1;

FIG. 3 is a perspective view of FIG. 2;

FIG. 4 is a schematic view of the structure of a rock wall;

FIG. 5 is a schematic structural view of a reinforcing member of the boom cylinder;

FIG. 6 is a schematic structural view of another embodiment of the forearm;

FIG. 7 is a schematic view of a prior art one-piece forearm;

the left half of fig. 8 is a schematic view of the structure of a prior art large arm;

FIG. 9 is a schematic view of a split forearm in the prior art;

description of reference numerals:

1. a main body, 2, a crushing head, 3, a big arm;

11. a first pin hole, 12, a second pin hole, 13, a third pin hole, 14, a hinge hole, 15, a first contact surface, 16, a crushing head mounting space, 17, a filling opening;

21. a fourth pin hole, 22, a fifth pin hole, 23, a hoisting mechanism, 24, a second contact surface;

31. the mounting structure comprises a reinforcing member 31', a large arm cylinder mounting part 311, a fixing part 312, a cylinder connecting part 313, a cylinder mounting hole 314, a sixth pin hole 315 and an auxiliary mounting part.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1-6, a split type small arm comprises a body 1 and a crushing head 2;

the main body 1 is used for connecting the large arm 3 and the crushing head 2, the main body 1 is in a water drop shape, the thinner end of the water drop shape of the main body 1 is arranged downwards, the thinner end is provided with a crushing head installation space 16 with a U-shaped longitudinal section, the main body 1 is provided with a first contact surface 15 at the top of the crushing head installation space 16, and two side surfaces of the U shape are provided with fixing holes for detachably installing and fixing the crushing head 2;

the fixing of the embodiment engages the fixing pins through the pin holes, which fixing holes, as shown in fig. 1, comprise a first pin hole 11, a second pin hole 12, a fourth pin hole 21 and a fifth pin hole 22, the first pin hole 11 corresponding to the fourth pin hole 21 and the second pin hole 12 corresponding to the fifth pin hole 22, engaging the fixing pins to fix the crushing head 2.

The crushing head 2 is used for crushing, the crushing head 2 is triangular, the top of the crushing head 2 is provided with a second contact surface 24, the upper part of the crushing head 2 can be inserted into the crushing head mounting space 16, the first contact surface 15 is tightly attached to the second contact surface 24, the crushing head 2 is also provided with a fixing hole at the position corresponding to the fixing hole on the body 1, and the crushing head 2 is detachably connected with the body 1 through the fixing holes of the crushing head and the body 1.

The utility model discloses split type forearm includes the body 1 of class water droplet form and class triangle-shaped's broken head 2, and the bottom of body 1 is equipped with the broken head installation space of U-shaped 16, and after broken head 2 inserted the U-shaped space, the second contact surface 24 at broken head 2 top offset with the first contact surface 15 at U-shaped space top, and both can dismantle the connection through round pin axle or bolt, and shape, structure, technology are all fairly simple, and dismouting, change convenience are with low costs.

Further, the first contact surface 15 and the second contact surface 24 are both flat surfaces, or the first contact surface 15 and the second contact surface 24 are both sawtooth surfaces.

When the first contact surface 15 and the second contact surface 24 are planes, the structure and the processing technology are further simplified, the efficiency is improved, and the cost is reduced; the first contact surface 15 and the second contact surface 24 are serrated surfaces, so that the contact surfaces are increased on the one hand, and the meshing of the serrated surfaces on the other hand can improve the bearing capacity of the crushing head 2, thereby improving the strength of the overall structure during digging of the forearm.

Further, the middle lower side of the main body 1 is retracted, and when the crushing head 2 is mounted on the main body 1, the outer edge line of the middle lower side of the main body 1 is close to the lower side of the crushing head 2 and slightly protrudes outward from the extension line of the lower side of the crushing head 2.

The middle lower side of the body 1 is retracted, and the outer edge line of the middle lower side of the body 1 is close to the lower side of the crushing head 2 as much as possible, so that the excavating resistance of the body 1 during crushing can be reduced, and the outer edge line slightly protrudes out of the extension line of the lower side of the crushing head 2; the aim is to improve the connection strength between the main body 1 and the crushing head 2 as much as possible on the premise of ensuring that the excavation resistance is reduced.

Further, the middle upper part of the small arm is provided with a hoisting mechanism 23, and when the crushing head 2 is installed on the body 1, the hoisting mechanism 23 is positioned outside the body 1.

The hoisting mechanism 23 on the crushing head 2 is convenient to hoist the crushing head 2 by using the hoisting hook when the crushing head is installed, so that the installation efficiency can be improved while the labor is saved.

Further, the small arm is of a hollow structure, a filling opening 17 is formed in the top surface of the small arm during working, and a discharging opening (not shown in the figure) is formed in the lower portion (approximately located below the hinge hole 14) of the bottom surface of the small arm during working.

The filler hole is used for filling heavy objects such as iron sand or other particulate matters with large specific gravity into the hollow part, the discharge hole is used for discharging the filled heavy objects such as sand and stone, the filler inside is used for adjusting the weight of the small arm, the weight of the small arm can be increased or decreased according to the hardness of the rock so as to adapt to the crushing of the rocks with different hardness, the weight of the small arm is reduced as much as possible on the premise of meeting the crushing of the rocks, and then the energy consumption of equipment is reduced so as to achieve the purpose of saving the cost.

Further, the hoisting mechanism 23 includes a connecting rod and a groove, the connecting rod is disposed above the opening of the groove, and forms an annular space for inserting the hook with the groove.

Hoisting machine constructs 23 and includes connecting rod and recess, the connecting rod is located the opening top of recess, and with the recess forms an annular space that is used for inserting the lifting hook, this hoisting machine constructs 23 simple structure, production, processing convenience, and is with low costs.

The rock arm comprises the small arm and a large arm 3, wherein the two sides of the large arm 3 are respectively provided with a large arm 3 oil cylinder installation reinforcing member 31, the reinforcing member 31 is arranged in the middle of the large arm 3 and is close to one end of the large arm 3 connected with the small arm.

The two sides of the large arm 3 are respectively provided with the large arm oil cylinder mounting reinforcing parts 31, so that on one hand, the mounting strength of the large arm oil cylinder is improved, the impact resistance is improved, and the large arm 3 is prevented from cracking; on the other hand, both sides are provided with the reinforcing members 31, the connecting shaft of the large arm oil cylinder connects the large arm oil cylinder to both sides of the large arm 3 through the reinforcing members 31 on both sides, but does not cross the large arm 3 through a shaft for connection, so that the oil cylinder on which side is broken can be replaced on which side, both sides are not required to be moved for replacement, time and labor are saved, and the maintenance efficiency is improved; reinforcing member 31 is located the middle part of big arm 3, and is close to the one end that big arm 3 and forearm are connected, guarantees that hydro-cylinder connecting portion 312 is located the focus position of big arm 3, improves the stability of work.

Further, the reinforcing member 31 includes a fixing portion 311 and an oil cylinder connecting portion 312, the fixing portion 311 and the oil cylinder connecting portion 312 are connected smoothly, the fixing portion 311 is a major arc, a circle center of the fixing portion 311 is provided with a mounting hole, the oil cylinder connecting portion 312 is wedge-like, an oil cylinder mounting hole is formed in the middle of the oil cylinder connecting portion 312, an oil cylinder mounting hole is formed in the large arm 3, and the large arm 3 and the oil cylinder mounting hole in the oil cylinder connecting portion 312 correspond to each other and are communicated with each other.

The reinforcing member 31 comprises a fixing part 311 and an oil cylinder connecting part 312, the fixing part 311 is arranged, so that the mounting, dismounting and replacement of the reinforcing member 31 are facilitated, and the mounting and dismounting convenience and efficiency are improved; the fixed part 311 is smoothly connected with the cylinder connecting part 312, so that the structural strength of the reinforcing member 31 is improved, and the large arm 3 is prevented from cracking; the fixing portion 311 is a major arc, and a mounting hole (a sixth pin hole 314 shown in fig. 5) is formed in the center of the fixing portion 311, so that the structure is simple, the processing is convenient, and the cost is low; the oil cylinder connecting part 312 is wedge-like, an oil cylinder mounting hole 313 is formed in the middle of the oil cylinder connecting part 312, and penetrates through the large arm 3, so that the connecting strength of the oil cylinder is further improved, the impact resistance of the large arm 3 is improved, and the large arm 3 is prevented from cracking.

Further, the reinforcing member 31 includes two side plates that are symmetrically arranged, the two side plates are arranged in parallel, a connecting plate is arranged between the two side plates, the connecting plate is perpendicular to the side plates, and the connecting plate is arranged on a periphery of the side plates. The main bodies of the small arm body 1 and the crushing head 2 can also adopt the frame type structure, but when the first contact surface 15 and the second contact surface 24 are sawtooth surfaces, the corresponding parts of the two contact surfaces need to adopt thick steel blocks instead of thick steel plates.

The reinforcing member 31 comprises a connecting plate and two symmetrically arranged side plates, the reinforcing member 31 is of a frame structure consisting of the connecting plate and the two side plates, and the frame structure is simple in structure, simple in processing technology and low in cost.

Further, an auxiliary mounting portion 315 is provided outside the fixing portion 311 of the reinforcing member 31.

The auxiliary mounting portion 315 is configured to assist in fixing the reinforcing member 31 when the reinforcing member 31 is mounted, so as to facilitate mounting of the reinforcing member 31.

In this embodiment, the hinge hole 14 is used for connecting the small arm and the large arm, and the third pin hole 13 is used for connecting the small arm and the small arm cylinder.

Further, the split type small arm rock breaking machine or the rock arm rock breaking machine is applied.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A split type forearm, its characterized in that: comprises a body and a crushing head;

the main body is used for connecting the large arm and the crushing head, the main body is in a water drop shape, the thinner end of the water drop shape of the main body is arranged downwards, the thinner end is provided with a crushing head installation space with a U-shaped longitudinal section, the main body is provided with a first contact surface at the top of the crushing head installation space, and two side surfaces of the U shape are provided with fixing holes for detachably installing and fixing the crushing head;

the crushing head is used for crushing, the crushing head is triangle-like, the top of the crushing head is provided with a second contact surface, the upper part of the crushing head can be inserted into the installation space of the crushing head, the first contact surface is tightly attached to the second contact surface, the corresponding position of the fixing hole on the body of the crushing head is also provided with a fixing hole, and the crushing head is detachably connected with the body through the fixing holes of the first contact surface and the second contact surface.

2. The split type forearm according to claim 1, wherein: the first contact surface and the second contact surface are both planes, or the first contact surface and the second contact surface are both sawtooth surfaces.

3. The split type forearm according to claim 1, wherein: the middle lower side of the body is retracted, and when the crushing head is mounted on the body, the outer edge line of the middle lower side of the body is close to the lower side of the crushing head and slightly protrudes outwards from the extension line of the lower side of the crushing head.

4. The split type forearm according to any one of claims 1-3, wherein: the middle upper part of the small arm is provided with a hoisting mechanism, and when the crushing head is arranged on the body, the hoisting mechanism is positioned outside the body;

and/or the small arm is of a hollow structure, a filling opening is formed in the top surface of the small arm during working, and a discharging opening is formed in the lower part of the bottom surface of the small arm during working.

5. The split type forearm according to claim 4, wherein: the lifting mechanism comprises a connecting rod and a groove, wherein the connecting rod is arranged above an opening of the groove and forms an annular space for inserting the lifting hook with the groove.

6. A rock arm comprising a split forearm according to any one of claims 1 to 5, wherein: the large arm is characterized by further comprising a large arm, wherein large arm oil cylinder installation reinforcing members are arranged on two sides of the large arm, and the reinforcing members are arranged in the middle of the large arm and close to one end, connected with the small arm, of the large arm.

7. The rock arm of claim 6, wherein: the reinforcing member includes fixed part and hydro-cylinder connecting portion, the fixed part with hydro-cylinder connecting portion smooth connection, the fixed part is the major arc shape, the centre of a circle department of fixed part is equipped with the mounting hole, hydro-cylinder connecting portion are the similar wedge, the middle part of hydro-cylinder connecting portion is equipped with the hydro-cylinder mounting hole, be equipped with the hydro-cylinder mounting hole on the big arm, big arm with the hydro-cylinder mounting hole on the hydro-cylinder connecting portion corresponds each other and link up.

8. The rock arm of claim 6, wherein: the reinforcing member comprises two side plates which are symmetrically arranged, the two side plates are arranged in parallel, a connecting plate is arranged between the two side plates and is perpendicular to the side plates, and the connecting plate is arranged on the edge of the side plates in a circle.

9. A rock arm according to claim 7, wherein: and an auxiliary mounting part is arranged on the outer side of the fixing part of the reinforcing part.

10. A rock breaker using the split type small arm of any one of claims 1 to 5 or a rock breaker using the rock arm of any one of claims 6 to 9.

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