CN218377260U - Novel breaking hammer shell fastening bolt - Google Patents
Novel breaking hammer shell fastening bolt Download PDFInfo
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- CN218377260U CN218377260U CN202222585765.9U CN202222585765U CN218377260U CN 218377260 U CN218377260 U CN 218377260U CN 202222585765 U CN202222585765 U CN 202222585765U CN 218377260 U CN218377260 U CN 218377260U
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- screw rod
- fastening bolt
- screw
- stop
- breaking hammer
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Abstract
The utility model relates to the field of hydraulic breaking hammers and other mechanical parts using large specification and large torque, in particular to a novel fastening bolt for a breaking hammer shell, which comprises a head part and a screw rod; the head portion includes a flanged end and a stop; the end part of the flange is integrally connected with the screw rod through a stopping part; the flange end part, the stop part and the screw are arranged in a step shape; the cross-sectional area of the stop portion is smaller than the cross-sectional area of the flange end portion; the stop part is provided with a circumferential limiting structure. The stop part arranged at the head part avoids the situation that the nut stop sleeve needs to be welded in the use process of the original bolt, and one end of the bolt does not need to be fixed by external force and can be directly screwed down; the use of installation spare part and the electric welding process that corresponds are reduced, have effectively improved the installation effectiveness.
Description
Technical Field
The utility model relates to a hydraulic breaking hammer and other use the machine part field of the big moment of torsion of big specification, concretely relates to novel breaking hammer casing fastening bolt.
Background
In the prior art, a hydraulic breaking hammer shell and a main machine are fastened together through bolts; there are two main types of bolts currently used: one is a hex head bolt, which is similar in construction to a bolt standard; the other is a screw type, and two ends of the screw type are fastened by nuts. No matter which kind of style's bolt, all need fix one end when the fastening in the use, just can screw up, then mostly a nut stopping sleeve of welding outside the shell. As the striking force of the breaking hammer in the daily use process is large, the vibration is also large, and the phenomenon that the welding seam of the welded nut anti-backing sleeve is easy to crack is a common phenomenon. Therefore, a new fastening bolt for a shell of a breaking hammer, which can not only eliminate a nut retaining sleeve, but also play a role in retaining the other end of the bolt when the bolt is tightened, needs to be developed to solve the technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and providing a novel quartering hammer casing fastening bolt, this application device can avoid using the nut stopping cover, does not need external force fixing bolt one end during the use, can directly screw up easy operation swiftly.
As is well known, the bolt through hole of the breaking hammer shell is arranged through the shell in a two-stage step type; the cross sectional area of the first-stage step through hole is larger than that of the second-stage step through hole; the first-stage stepped through hole is arranged in a non-cylindrical shape;
in order to achieve the purpose, the utility model adopts the following technical scheme: a novel fastening bolt for a shell of a breaking hammer comprises a head and a screw rod with an external thread; the head part and the screw rod are integrally arranged; the head portion includes a flanged end and a stop portion; the end part of the flange is integrally connected with the screw rod through a stopping part; the flange end part, the stop part and the screw are arranged in a step shape; the cross-sectional area of the stop part is smaller than that of the flange end part; and a circumferential limiting structure is arranged on the stopping part.
The utility model has the advantages that: according to the novel fastening bolt for the breaking hammer shell, the situation that a nut stop sleeve needs to be welded in the use process of an original bolt is avoided through the stop part arranged at the head part, and one end of the bolt does not need to be fixed by external force during use and can be directly screwed down; meanwhile, the circumferential limiting structure of the stopping part is matched with the bolt through hole of the breaking hammer shell, and the stopping part can be matched with the first-stage stepped through hole of the bolt through hole of the breaking hammer shell, so that the position of the fastening bolt is further ensured not to be changed easily when the fastening bolt is used, and other operations and external force intervention are not needed; the operation is simple and fast, the use of installation parts and the corresponding electric welding process are reduced, and the installation efficiency is effectively improved.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the screw rod also comprises a tool withdrawal groove; the tool withdrawal groove is arranged on the screw rod body; the length of the screw rod from the starting end of the screw rod close to the stopping part to the tool withdrawal groove is matched with the width of the shell of the breaking hammer; and external threads are arranged on the screw rod between the tail end part of the screw rod and the tool withdrawal groove.
The beneficial effect who adopts above-mentioned further scheme is that, the novel quartering hammer casing fastening bolt of this application only needs tool withdrawal groove to the terminal processing external screw thread of screw rod on the screw rod, has effectively reduced the processing length of external screw thread, has increased the mechanical strength of screw rod, reduces this application fastening bolt's processing technology, has improved production efficiency.
Further, the screw rod also comprises a sunken section, and the sunken section is arranged between the initial end of the screw rod and the screw rod of the tool withdrawal groove; the concave section is cylindrical and is coaxial with the screw rod, and the diameter of the cross section of the concave section is smaller than that of the cross section of the screw rod; the arrangement of the sunken section is matched with a device arranged in the shell of the breaking hammer.
The screw rod is provided with the concave section, the diameter of the middle section of the screw rod is small, the design strength of the screw rod is guaranteed, the screw rod can effectively avoid a device arranged inside the breaking hammer shell, and the situation that the device in the breaking hammer shell blocks or influences a fastening bolt to smoothly penetrate through the breaking hammer shell is avoided.
Furthermore, two ends of the sunken section are arranged in an arc shape, so that the sunken section is connected with other parts of the screw rod.
The beneficial effect of adopting the further scheme is that: the arc-shaped structure ensures the convenience and smoothness of the fastening bolt during processing; the whole shape of the fastening bolt is not hard to be folded, so that the fastening bolt is convenient to be blocked when being used at the later stage; in addition, the compression strength and the breaking strength of the screw of the fastening bolt are effectively guaranteed.
Furthermore, the circumferential limiting structure of the stopping part is a limiting groove and a limiting bulge.
Further, the stop portion is non-circular in cross-section.
Further, the cross section of the stopping part is oval, irregular or polygonal.
The beneficial effects of adopting the above schemes are: the setting of other shapes of locking portion circumference limit structure combines the bolt through-hole on the quartering hammer casing that the adaptation set up, and when using, in the bolt through-hole of locking portion on the quartering hammer casing that can effectual coincide, has further guaranteed the locking effect of locking portion, can effectively improve this application fastening bolt's installation availability factor.
Furthermore, the novel breaking hammer shell fastening bolt is processed in a free forging or die forging mode to form a required shape.
Drawings
Fig. 1 is a schematic view of the overall structure of a fastening bolt of a shell of a breaking hammer of the present invention;
fig. 2 is a schematic view of the overall structure of another structure of the fastening bolt of the shell of the breaking hammer of the present invention.
In the drawings, 1, a flange end; 2. a stopper portion; 3. the screw rod, 4, sunken section, 5, tool withdrawal groove, 6, external screw thread.
Detailed Description
The technical solutions in the embodiments of the present application are clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. In addition, bolt through holes in the shell of the traditional breaking hammer are arranged in a two-stage stepped mode and penetrate through the shell; the cross sectional area of the first-stage step through hole is larger than that of the second-stage step through hole; the first-stage stepped through hole is non-cylindrically arranged.
Example 1
Referring to fig. 1, a novel breaking hammer shell fastening bolt comprises a head and a screw rod 3 with an external thread 6; the head part and the screw rod 3 are integrally arranged; the head comprises a flange end 1 and a stop 2; the flange end part 1 is integrally connected with a screw rod 3 through a stopping part 2; the flange end part 1, the stop part 2 and the screw rod 3 are arranged in a ladder shape; the cross-sectional area of the stop part 2 is smaller than that of the flange end part 1; and a circumferential limiting structure is arranged on the stopping part 2. The fastening bolt of the embodiment is processed into a required shape by free forging or die forging. The stop part 2 arranged at the head part avoids the situation that a nut stop sleeve needs to be welded in the use process of the original bolt, and one end of the bolt does not need to be fixed by external force in use and can be directly screwed down; meanwhile, the circumferential limiting structure of the stopping part 2 is matched with the bolt through hole of the breaking hammer shell, and the stopping part 2 can be matched with the first-stage stepped through hole of the bolt through hole of the breaking hammer shell, so that the position of the fastening bolt is further ensured not to be changed easily when the fastening bolt is used, and other operations and external force intervention are not needed; the operation is simple and fast, the use of installation parts and the corresponding electric welding process are reduced, and the installation efficiency is effectively improved.
Example 2
The embodiment is described with reference to embodiment 1, and the screw 3 of the fastening bolt of the novel breaking hammer shell of the embodiment further comprises a tool withdrawal groove 5; the tool withdrawal groove 5 is arranged on the screw rod 3 body; the length of the screw 3 from the starting end of the screw 3 close to the stopping part 2 to the tool withdrawal groove 5 is matched with the width of the shell of the breaking hammer; and an external thread 6 is arranged on the screw rod 3 between the tail end part of the screw rod 3 and the tool withdrawal groove 5. The novel quartering hammer casing fastening bolt of this embodiment only needs sword groove 5 to the 3 terminal processing external screw threads 6 of screw rod on screw rod 3, has effectively reduced the processing length of external screw threads 6, has increased screw rod 3's mechanical strength, reduces this application fastening bolt's processing technology, has improved production efficiency.
Example 3
This example will be described in conjunction with examples 1-2. The screw 3 of the novel breaking hammer shell fastening bolt of the embodiment further comprises a sunken section 4, wherein the sunken section 4 is arranged between the starting end of the screw 3 and the screw 3 of the tool withdrawal groove 5; the concave section 4 is cylindrical and is coaxial with the screw rod 3, and the diameter of the cross section of the concave section is smaller than that of the cross section of the screw rod 3; the arrangement of the sunken section 4 is matched with a device arranged in the shell of the breaking hammer; the two ends of the sunken section 4 are arranged in an arc shape to realize connection with other parts of the screw rod 3. The arrangement of the concave section 4 on the screw rod 3 in the embodiment enables the diameter of the middle section of the screw rod 3 to be thin, ensures the design strength of the screw rod 3, and simultaneously can effectively enable the screw rod 3 to avoid a device arranged in the shell of the breaking hammer, and prevents the device in the shell of the breaking hammer from blocking or influencing a fastening bolt to smoothly penetrate through the shell of the breaking hammer; the arc-shaped structure ensures the convenience and smoothness of the fastening bolt during processing; the whole shape of the fastening bolt is not hard to be folded, so that the fastening bolt is not easy to block when being used at the later stage; in addition, the compression strength and the breaking strength of the fastening bolt and the screw 3 are effectively ensured.
Example 4
Referring to the attached drawings 1-2, the circumferential limiting structure of the stopping part 2 of the novel breaking hammer shell fastening bolt of the embodiment is a limiting groove or a limiting bulge; the cross section of the stopper 2 is non-circular, for example, it has an oval, irregular or polygonal cross section.
The setting of the other shapes of 2 circumference limit structure of locking portions of this embodiment combines the bolt through-hole on the quartering hammer casing that the adaptation set up, and when using, in the bolt through-hole of locking portions can effectual coincide on the quartering hammer casing, has further guaranteed the locking effect of locking portions, can effectively improve this application fastening bolt's installation availability factor.
The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.
Claims (7)
1. A novel fastening bolt for a shell of a breaking hammer comprises a head and a screw (3) with an external thread (6); the head part and the screw rod (3) are integrally arranged; characterized in that the head comprises a flange end (1) and a stop (2); the flange end part (1) is integrally connected with the screw rod (3) through a stopping part (2); the flange end part (1), the stop part (2) and the screw (3) are arranged in a step shape; the cross-sectional area of the stop part (2) is smaller than that of the flange end part (1); and a circumferential limiting structure is arranged on the stopping part (2).
2. The novel breaking hammer shell fastening bolt of claim 1, wherein the circumferential limiting structure is a limiting groove and a limiting protrusion.
3. A new breaking hammer case fastening bolt according to claim 1 or 2, characterized in that the stop (2) is non-circular in cross-section.
4. A new breaking hammer housing fastening bolt according to claim 3, characterized in that the cross section of the stop (2) is oval, profiled or polygonal.
5. The new demolition hammer housing fastening bolt of claim 1, characterized by: the screw (3) also comprises a tool withdrawal groove (5); the tool withdrawal groove (5) is arranged on the screw rod (3) body; the length of the screw (3) from the starting end of the screw (3) close to the stopping part (2) to the tool withdrawal groove (5) is matched with the width of the shell of the breaking hammer; and an external thread (6) is arranged on the screw rod (3) between the tail end part of the screw rod (3) and the tool withdrawal groove (5).
6. The new breaking hammer case fastening bolt of claim 2, wherein: the screw rod (3) further comprises a sunken section (4), and the sunken section (4) is arranged between the starting end of the screw rod (3) and the screw rod (3) of the tool withdrawal groove (5); the concave section (4) is cylindrical and is coaxial with the screw (3), and the diameter of the cross section of the concave section is smaller than that of the cross section of the screw (3); the arrangement of the sunken section (4) is matched with a device arranged in the shell of the breaking hammer.
7. The new demolition hammer housing fastening bolt of claim 6, characterized by: and two ends of the sunken section (4) are arranged in an arc shape to realize connection with other parts of the screw rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222585765.9U CN218377260U (en) | 2022-09-28 | 2022-09-28 | Novel breaking hammer shell fastening bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222585765.9U CN218377260U (en) | 2022-09-28 | 2022-09-28 | Novel breaking hammer shell fastening bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218377260U true CN218377260U (en) | 2023-01-24 |
Family
ID=84955729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222585765.9U Active CN218377260U (en) | 2022-09-28 | 2022-09-28 | Novel breaking hammer shell fastening bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218377260U (en) |
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2022
- 2022-09-28 CN CN202222585765.9U patent/CN218377260U/en active Active
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