CN216379727U - Rubber sleeve fixed type lower cylinder body of breaking hammer - Google Patents
Rubber sleeve fixed type lower cylinder body of breaking hammer Download PDFInfo
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- CN216379727U CN216379727U CN202122525919.0U CN202122525919U CN216379727U CN 216379727 U CN216379727 U CN 216379727U CN 202122525919 U CN202122525919 U CN 202122525919U CN 216379727 U CN216379727 U CN 216379727U
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Abstract
The utility model discloses a rubber sleeve fixed type breaking hammer lower cylinder body.A steel chisel is installed through an inner bushing and an outer bushing which are arranged in the lower cylinder body, the rubber sleeve fixed type breaking hammer lower cylinder body comprises a main body, an impact channel penetrating through the main body is formed in the length direction of the main body, and the tail end of the steel chisel is installed in the impact channel; the main body is provided with a flat pin hole penetrating through the main body so as to be convenient for inserting a flat pin for preventing the steel chisel from rotating. According to the rubber sleeve fixed type breaking hammer lower cylinder body, the inner bushing, the outer bushing and the flat pin of the lower cylinder body are fixed through the pins, the rubber plug is used for sealing and fixing the outer end of the fixing pin to replace a rigid snap spring, the rubber sleeve fixed type breaking hammer lower cylinder body is convenient to assemble and disassemble, meanwhile, the rubber plug has an elastic buffering effect, the positioning pins can be protected, further key components in the main body are protected, and the service life of the lower cylinder body is prolonged.
Description
Technical Field
The utility model relates to the technical field of hydraulic breaking hammers, in particular to a rubber sleeve fixed type breaking hammer lower cylinder body.
Background
The hydraulic breaking hammer is called as breaking hammer or breaker for short, is installed on the part of excavator or loader where bucket or bucket is installed, and is used for breaking stone, rock, etc. The working principle of the hydraulic breaking hammer is as follows: the hydraulic pump of the excavator and the loader outputs pressure oil as power, and the reciprocating motion of the piston is controlled by the flow distribution valve. During the stroke, high-pressure hydraulic oil is fed into the rear cavity of the cylinder in the breaking hammer, and the piston impacts the drill rod to cut rock under the combined action of compressed nitrogen and the high-pressure oil in the upper cylinder; during return stroke, the front cavity of the middle cylinder is communicated with high-pressure oil to push the piston to move backwards and compress nitrogen in the upper cylinder body, so that a working cycle is completed. The piston is repeatedly stroked and returned to make the drill rod impact and break rock, stone and concrete.
The hydraulic breaking hammer mainly comprises an upper cylinder body, a middle cylinder body, a lower cylinder body and a steel rod, wherein one end of the steel rod is arranged in the lower cylinder body, in order to ensure the stability between the lower cylinder body and the steel rod, a lining is generally arranged in the lower cylinder body, the steel rod is limited by two flat pins, the lining and the flat pins are generally fixed in the lower cylinder body through connecting pins, and then the lining and the flat pins are fixed through clamp springs to ensure that the lining and the flat pins cannot deviate and rock, but the steel rod is greatly impacted, force is transmitted to the connecting pins in the process, the buffering capacity of the connecting pins positioned by the clamp springs is poor, the connecting pins are easily damaged, the connecting pins are difficult to take out once the connecting pins are broken in the lower cylinder body, the breaking efficiency of the steel rod and the service life of the breaking hammer are greatly influenced, the production cost of an enterprise is further improved, and meanwhile, the connecting pins fixed by the clamp springs are not firmly assembled, the condition that the connecting pin falls is easily produced in the breaking hammer operation process, and the clamp spring is also very inconvenient during fixing.
Therefore, in combination with the above-mentioned technical problems, there is a need to provide a new technical solution.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a rubber sleeve fixed type breaking hammer lower cylinder body which can effectively relieve the influence of impact force on a connecting pin, has higher stability and is more convenient to assemble and disassemble.
In order to solve the technical problems, the utility model provides a rubber sleeve fixed type breaking hammer lower cylinder body, which adopts the following specific technical scheme:
a rubber sleeve fixed type breaking hammer lower cylinder body is characterized in that a steel chisel is installed through an inner bushing and an outer bushing which are arranged in the lower cylinder body, the rubber sleeve fixed type breaking hammer lower cylinder body comprises a main body, an impact channel penetrating through the main body is formed in the length direction of the main body, and the tail end of the steel chisel is installed in the impact channel; the main body is provided with a flat pin hole penetrating through the main body so as to be convenient for inserting a flat pin for preventing the steel chisel from rotating; the main body is further provided with an inner bushing pin hole for fixing an inner bushing, an outer bushing pin hole for fixing an outer bushing and a flat pin hole for fixing a flat pin, and the inner bushing pin hole, the outer bushing pin hole and the flat pin hole are assembled by adopting glue plugs.
Preferably, the number of the flat pin holes is two, the flat pin holes are perpendicular to the steel chisel, the side walls of the flat pin holes are attached to the steel chisel, and the two flat pin holes are symmetrically arranged along the axis of the steel chisel.
Preferably, the striking channel is provided with an annular bulge to form an inner bushing limiting portion, the inner bushing is fixed by the inner bushing limiting portion and a fixing pin inserted into an inner bushing pin hole, one end of the striking channel, which is close to the outer portion of the drill rod, is stepped to form an outer bushing mounting portion, and the outer bushing is fixed by the outer bushing mounting portion and the fixing pin inserted into an outer bushing pin hole.
Preferably, the inner bushing pin hole and the outer bushing pin hole are both arranged in parallel with the flat pin hole, and the flat pin hole is perpendicular to the flat pin hole.
Preferably, the side of the body remote from the drill steel is provided with an arc-shaped bolt mounting groove so as to receive a nut to prevent interference.
The rubber sleeve fixed type breaking hammer lower cylinder body has the following beneficial effects:
according to the rubber sleeve fixed type breaking hammer lower cylinder body, the inner bushing, the outer bushing and the flat pin of the lower cylinder body are fixed through the pins, the rubber plug is used for sealing and fixing the outer end of the fixing pin, a rigid snap spring is replaced, the rubber sleeve fixed type breaking hammer lower cylinder body is convenient to assemble and disassemble, meanwhile, the rubber plug has an elastic buffering effect, the rubber plug can protect each positioning pin, further key components in the main body are protected, and the service life of the lower cylinder body is prolonged;
additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a lower cylinder body of a rubber sleeve fixed type breaking hammer;
FIG. 2 is a front view of the hydraulic demolition hammer of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic view showing the engagement of the lower cylinder and the drill steel of FIG. 1.
Wherein, 1-main body; 101-an impingement channel; 102-an inner bushing limiting part; 103-an outer bushing mounting; 2-flat pin holes; 3-outer bushing pin holes; 4-flat pin hole; 5-inner bushing pin holes; 6-steel chisel; 7-an outer liner; 8-inner lining; 9-bolt mounting groove.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
Examples
Referring to fig. 1 to 4, a rubber sleeve fixed type breaking hammer lower cylinder body is provided with a drill steel 6 through an inner bushing 8 and an outer bushing 7 which are arranged in the lower cylinder body, and comprises a main body 1, wherein an impact channel 101 which penetrates through the main body 1 is formed in the length direction of the main body 1, and the tail end of the drill steel 6 is arranged in the impact channel 101; the main body 1 is provided with a flat pin hole 2 penetrating through the main body 1 so as to insert a flat pin for preventing the steel chisel 6 from rotating; still be equipped with on the main part 1 interior bush pinhole 5 that is used for fixed interior bush 8, the outer bush pinhole 3 that is used for fixed outer bush 7 and the flat round pin pinhole 4 that is used for fixed flat round pin, interior bush pinhole 5, outer bush pinhole 3 and flat round pin pinhole 4 all adopt gluey stifled assembly. The rubber sleeve is made of a penetrating soft material, and rubber sleeve mounting grooves are reserved at the end parts of the inner bushing pin hole 5, the outer bushing pin hole 3 and the flat pin hole 4.
The number of the flat pin holes 2 is two, the flat pin holes 2 are perpendicular to the steel drill 6, the side walls of the flat pin holes are attached to the steel drill 6, and the two flat pin holes 2 are symmetrically arranged along the axis of the steel drill 6.
An annular bulge is arranged in the impact channel 101 to form an inner bushing limiting part 102, the inner bushing 8 is fixed through the inner bushing limiting part 102 and a fixing pin inserted into the inner bushing pin hole 5, one end, close to the outer portion of the drill steel, of the impact channel 101 is in a step shape to form an outer bushing mounting part 103, and the outer bushing 7 is fixed through the outer bushing mounting part 103 and the fixing pin inserted into the outer bushing pin hole 3.
The inner bushing pin hole 5 and the outer bushing pin hole 3 are both arranged in parallel with the flat pin hole 2, and the flat pin hole 4 is perpendicular to the flat pin hole 2. The side of the main body 1 remote from the drill steel 6 is provided with an arc-shaped bolt mounting groove 9 so as to receive a nut to prevent interference.
The fixed quartering hammer of gum cover of this embodiment is cylinder body down, and drill rod 6 is installed to one end, and the other end passes through fastening bolt and is connected with other cylinder body subassemblies, and the cotter pin makes drill rod 6 both sides fixed in inserting flat pin hole 2, prevents that cylindric drill rod 6 from taking place to rotate at the during operation, and is arranged in the cotter pin edgewise of fixed cotter pin inserts main part 1 and passes the cotter pin, makes the cotter pin fixed prevent to slide. The inner bushing 8 and the outer bushing 7 for attaching the drill steel 6 to the main body 1 are also fixed by fixing pins, and the inner bushing 8 and the outer bushing 7 are fixed to the inside of the impact path 101 of the main body 1 by engaging with the inner bushing stopper 102 and the outer bushing attaching portion 103. When the flat pin and the fixing pin are installed, the rubber sleeve is installed in the installation groove in the pin hole, and then the flat pin and the fixing pin are inserted into the pin hole, so that the assembly scheme of installing the round pin and installing the clamp spring in advance in the past is replaced.
The utility model has the beneficial effects that: the inner bushing, the outer bushing and the flat pin of the lower cylinder body are fixed through the pins, the outer end head of the fixed pin is sealed and fixed through the glue plug, a rigid snap spring is replaced, assembly and disassembly are facilitated, meanwhile, due to the fact that the glue plug has the elastic buffering effect, the positioning pins can be protected, key components in the main body are protected, and the service life of the lower cylinder body is prolonged.
While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications and variations may be made therein by those of ordinary skill in the art within the scope of the present invention.
Claims (5)
1. The utility model provides a cylinder body under fixed quartering hammer of gum cover, through bushing (8) and outer bush (7) installation drill rod (6) that set up in cylinder body down, its characterized in that: the steel bar drill comprises a main body (1), wherein an impact channel (101) penetrating through the main body (1) is formed in the length direction of the main body (1), and the tail end of a steel bar (6) is installed in the impact channel (101); the main body (1) is provided with a flat pin hole (2) penetrating through the main body (1) so as to be convenient for inserting a flat pin for preventing the steel chisel (6) from rotating; the main body (1) is further provided with an inner bushing pin hole (5) for fixing an inner bushing (8), an outer bushing pin hole (3) for fixing an outer bushing (7) and a flat pin hole (4) for fixing a flat pin, and the inner bushing pin hole (5), the outer bushing pin hole (3) and the flat pin hole (4) are assembled by adopting glue plugs.
2. The rubber sleeve fixed breaking hammer lower cylinder body according to claim 1, wherein: the steel chisel is characterized in that the number of the flat pin holes (2) is two, the flat pin holes (2) are perpendicular to the steel chisel (6) and the side walls of the flat pin holes are attached to the steel chisel (6), and the two flat pin holes (2) are symmetrically arranged along the axis of the steel chisel (6).
3. The rubber sleeve fixed breaking hammer lower cylinder body according to claim 1, wherein: the impact channel (101) is internally provided with an annular bulge to form an inner bushing limiting part (102), the inner bushing (8) is fixed with a fixing pin inserted into an inner bushing pin hole (5) through the inner bushing limiting part (102), one end, close to the outside of a steel chisel, of the impact channel (101) is in a step shape to form an outer bushing mounting part (103), and the outer bushing (7) is fixed with the fixing pin inserted into an outer bushing pin hole (3) through the outer bushing mounting part (103).
4. The rubber sleeve fixed breaking hammer lower cylinder body according to claim 1, wherein: the inner bushing pin hole (5) and the outer bushing pin hole (3) are both arranged in parallel with the flat pin hole (2), and the flat pin hole (4) is perpendicular to the flat pin hole (2).
5. The rubber sleeve fixed breaking hammer lower cylinder body according to claim 1, wherein: one side of the main body (1) far away from the steel drill (6) is provided with an arc bolt installation groove (9) so as to accommodate a nut to prevent interference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122525919.0U CN216379727U (en) | 2021-10-20 | 2021-10-20 | Rubber sleeve fixed type lower cylinder body of breaking hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122525919.0U CN216379727U (en) | 2021-10-20 | 2021-10-20 | Rubber sleeve fixed type lower cylinder body of breaking hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216379727U true CN216379727U (en) | 2022-04-26 |
Family
ID=81246262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122525919.0U Active CN216379727U (en) | 2021-10-20 | 2021-10-20 | Rubber sleeve fixed type lower cylinder body of breaking hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216379727U (en) |
-
2021
- 2021-10-20 CN CN202122525919.0U patent/CN216379727U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 213031 No. 109, Liuyanghe Road, Xinbei District, Changzhou City, Jiangsu Province Patentee after: JIANGSU GUCHUAN MACHINERY Co.,Ltd. Address before: No.214, tuyuan Road, changjiangyin City, Wuxi City, Jiangsu Province Patentee before: JIANGSU GUCHUAN MACHINERY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |