CN218479246U - Counter weight mounting structure and excavator - Google Patents
Counter weight mounting structure and excavator Download PDFInfo
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- CN218479246U CN218479246U CN202221999957.8U CN202221999957U CN218479246U CN 218479246 U CN218479246 U CN 218479246U CN 202221999957 U CN202221999957 U CN 202221999957U CN 218479246 U CN218479246 U CN 218479246U
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- counterweight
- guide
- mounting groove
- counter weight
- mounting
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Abstract
The utility model discloses a counter weight mounting structure and excavator, counter weight mounting structure includes the revolving stage, the counter weight, construction bolt, guide block and welding block, be equipped with the mounting groove on the counter weight, the mounting groove sets up along the centrobaric second center line symmetry of counter weight, all be equipped with the screw hole on the mounting groove of every side, the screw hole sets up along the centrobaric first center line symmetry of counter weight, symmetrical connection has the welding block on the mounting groove lateral surface of every side, it forms the guide way to be located between the welding block on the same mounting groove, the revolving stage both sides are equipped with the through-hole with screw hole looks adaptation respectively, the revolving stage passes through construction bolt fixed connection in the mounting groove, revolving stage both sides outer end is equipped with the guide block, guide block and guide way looks adaptation, the guide block is located the guide way after the installation. The utility model provides an among the prior art construction bolt fracture, the counter weight tumbles, slides and causes the problem of potential safety hazard.
Description
Technical Field
The utility model relates to a counter weight mounting structure and excavator belongs to engineering machine tool technical field.
Background
The middle-sized excavator generally directly fixes the rotary table and the balance weight together by four mounting bolts. The counterweight and the turntable can be disconnected if the mounting bolt is broken. If not found timely, the counterweight can fall off when the excavator works. Therefore, the whole machine is out of balance, the normal operation cannot be realized, and great potential safety hazards can be brought.
CN212928653U discloses a turntable counterweight device for aerial work platform, which is inserted into a counterweight mounting groove through a rotary platform positioning block located at the middle part, so that a counterweight is connected with a turntable, and is used for preventing a counterweight from dropping under the condition that a fastener is not flexible. However, the counterweight mounting groove described in CN212928653U is located in the middle and is basically located at a position perpendicular to the gravity center of the counterweight, and if the mounting bolt is broken, and the counterweight tilts and slides, the stress on the positioning block of the rotary platform is concentrated, which affects the structural life. The multilateral trapezium structure of counter weight mounting groove is more complicated, and the processing degree of difficulty is big.
SUMMERY OF THE UTILITY MODEL
For solving the defects of the prior art, the utility model aims to provide a counter weight mounting structure and excavator has solved the problem that mounting bolt splits among the prior art, and the counter weight tumbles, slides and causes the potential safety hazard.
In order to achieve the above object, the utility model adopts the following technical scheme:
a counterweight mounting structure comprises a rotary table, a counterweight, a mounting bolt, a guide block and a welding block;
the counterweight is provided with mounting grooves, the mounting grooves are symmetrically arranged along a second central line of the gravity center of the counterweight, the mounting groove on each side is provided with a threaded hole, the threaded holes are symmetrically arranged along a first central line of the gravity center of the counterweight, the outer side surface of the mounting groove on each side is symmetrically connected with welding blocks, and a guide groove is formed between the welding blocks positioned on the same mounting groove;
through holes matched with the threaded holes are respectively formed in the two sides of the rotary table, the rotary table is fixedly connected in the mounting groove through mounting bolts, guide blocks are arranged at the outer ends of the two sides of the rotary table and matched with the guide grooves, and the guide blocks are located in the guide grooves after mounting.
Furthermore, the guide blocks at the outer ends of the two sides of the rotary table are bilaterally symmetrical along the first center line at the gravity center of the counterweight.
Furthermore, the welding blocks on the outer side surface of the mounting groove are symmetrically arranged along the first center line.
Further, the transverse spacing of the guide grooves is larger than the width of the guide blocks.
Further, the length of the guide block is larger than the transverse interval of the guide groove.
An excavator, which employs a counterweight mounting structure of any one of the preceding claims.
The utility model discloses the beneficial effect who reaches:
1. after the mounting bolt breaks, the guide block is blocked in the guide groove, so that the counterweight can be prevented from sliding and overturning forwards and backwards to a large extent.
2. The guide groove and the guide block structure are basically positioned at the symmetrical positions at the two sides of the gravity center of the counterweight, so that the impact caused by the tipping and sliding of the counterweight can be dispersed.
3. Simple structure can realize through the welding, and leaves the clearance between guide way and the guide block, does not influence counter weight installation location.
Drawings
FIG. 1 is a schematic view of the installation of the counterweight of the present invention;
FIG. 2 is a schematic view of the welding of the guide block of the present invention;
FIG. 3 is a schematic view of the counterweight mounting groove of the present invention;
fig. 4 is a schematic axial view of the counterweight installation method of the present invention.
The meaning of the reference symbols in the figures: 1, rotating a platform; 2-counterweight; 3, mounting a bolt; 101-a guide block; 201-solder block; 202-mounting grooves; 301-counterweight center of gravity; 302-a first centerline; 303-second centerline.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example one
The present embodiment discloses a counterweight mounting structure, as shown in fig. 1, including a turntable 1, a counterweight 2, a mounting bolt 3, a guide block 101, and a weld block 201. The counterweight 2 is provided with a mounting groove 202, the mounting grooves 202 are symmetrically arranged along a second center line 303 of the counterweight center of gravity 301, threaded holes are formed in the mounting groove 202 on each side, and the threaded holes are symmetrically arranged along a first center line 302 of the counterweight center of gravity 301. Through holes matched with the threaded holes are respectively formed in the two sides of the rotary table 1, and the rotary table 1 is fixedly connected into the mounting groove 202 through the mounting bolts 3.
Referring to fig. 1 and 2, the guide blocks 101 are connected to the outer ends of both sides of the turntable 1, and after the turntable 1 and the counterweight 2 are connected by the mounting bolts 3, the guide blocks 101 of each side are bilaterally symmetrical along a first center line 302 at the center of gravity 301 of the counterweight. Known by fig. 3, lateral surface at the mounting groove 202 of every side is connected with two solder blocks 201, two solder blocks 201 of unilateral are along first central line 302 symmetrical arrangement, form the guide way between two solder blocks 201 that are located on same mounting groove 202, the horizontal interval of guide way is greater than the width of guide block 101, when being convenient for counter weight hoist and mount, insert guide block 101 in the guide way, this guide way does not possess the positioning action, make things convenient for the counter weight installation in-process to carry out position control. The length of the guide block 101 is greater than the lateral spacing of the guide slots to prevent the guide block 101 from sliding out of the guide slots after the mounting bolts 3 are broken.
In the excavator working process, after the construction bolt 3 breaks, the guide way and the guide block 101 constitute limit structure, and the guide block 101 is blocked in the guide way, can prevent that counter weight 2 from sliding and toppling around by a wide margin. The guide groove and the guide block structure are basically positioned at the symmetrical positions on both sides of the gravity center 301 of the counterweight, so that the impact caused by the tipping and sliding of the counterweight can be dispersed.
Example two
The embodiment relates to an excavator, and the anti-tipping mounting structure of the counter weight in the first application embodiment effectively solves the problems of potential safety hazards caused by breakage of mounting bolts, tipping and sliding of the counter weight in the prior art.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (6)
1. A counterweight mounting structure is characterized by comprising a rotary table (1), a counterweight (2), a mounting bolt (3), a guide block (101) and a welding block (201);
the counterweight (2) is provided with mounting grooves (202), the mounting grooves (202) are symmetrically arranged along a second center line (303) of a counterweight gravity center (301), each mounting groove (202) on each side is provided with a threaded hole, the threaded holes are symmetrically arranged along a first center line (302) of the counterweight gravity center (301), the outer side surface of each mounting groove (202) on each side is symmetrically connected with welding blocks (201), and guide grooves are formed among the welding blocks (201) on the same mounting groove (202);
turntable (1) both sides are equipped with respectively with the through-hole of screw hole looks adaptation, and turntable (1) is through construction bolt (3) fixed connection in mounting groove (202), turntable (1) both sides outer end is equipped with guide block (101), guide block (101) and guide way looks adaptation, installation back guide block (101) are arranged in the guide way.
2. A counterweight mounting structure according to claim 1, characterized in that the guide blocks (101) at both side outer ends of the turntable (1) are bilaterally symmetrical along the first center line (302) at the center of gravity (301) of the counterweight.
3. A counterweight mounting structure as claimed in claim 1, wherein said weld blocks (201) on the outer side of said mounting groove (202) are symmetrically arranged along a first centerline (302).
4. A counterweight mounting structure according to claim 1, wherein the lateral spacing of said guide grooves is larger than the width of the guide block (101).
5. A counterweight mounting structure according to claim 1, characterized in that the length of said guide block (101) is greater than the transverse pitch of the guide grooves.
6. An excavator wherein a counterweight mounting structure according to any one of claims 1 to 5 is applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221999957.8U CN218479246U (en) | 2022-08-01 | 2022-08-01 | Counter weight mounting structure and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221999957.8U CN218479246U (en) | 2022-08-01 | 2022-08-01 | Counter weight mounting structure and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218479246U true CN218479246U (en) | 2023-02-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221999957.8U Active CN218479246U (en) | 2022-08-01 | 2022-08-01 | Counter weight mounting structure and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218479246U (en) |
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2022
- 2022-08-01 CN CN202221999957.8U patent/CN218479246U/en active Active
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