CN202846506U - Shake-reducing handgrip of pneumatic rock drill - Google Patents
Shake-reducing handgrip of pneumatic rock drill Download PDFInfo
- Publication number
- CN202846506U CN202846506U CN 201220479963 CN201220479963U CN202846506U CN 202846506 U CN202846506 U CN 202846506U CN 201220479963 CN201220479963 CN 201220479963 CN 201220479963 U CN201220479963 U CN 201220479963U CN 202846506 U CN202846506 U CN 202846506U
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- CN
- China
- Prior art keywords
- handle
- damping element
- shake
- rock drill
- reducing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/006—Vibration damping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/02—Construction of casings, bodies or handles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Earth Drilling (AREA)
Abstract
The utility model discloses a shake-reducing handgrip of a pneumatic rock drill. The shake-reducing handle of the pneumatic rock drill comprises a hand shank, and handle holders respectively arranged at two ends of the hand shank, wherein circular cavities used for containing the top ends of the hand shanks are formed at one ends of the handle holders, a first shake-reducing component made of elastic materials is arranged between an internal surface of either circular cavity and the top end of either hand shank, and the other ends of the handle holders are connected with a pneumatic rock drill body. The shake-reducing handle of the pneumatic rock drill utilizes a three-level shake-reducing mechanism, shake generated in rock drill working can pass through the three-level shake-reducing mechanism, a shake-reducing component of each level plays a part of segregation and damping absorption, so that the shake passing to hands of an operator at last can be greatly reduced, and operation conditions of users can be obviously improved. The shake-reducing handle of the pneumatic rock drill can be suitable to pneumatic rock drills in various types, and can be widely applied.
Description
Technical field
The present invention relates to a kind of vibration absorber of rock drill, relate in particular to a kind of vibration-damped handle of hand-held drifter.
Background technology
Hand-held drifter has a large amount of application at building, mine industry, be widely used in mining and construction operation, and building demolition operation, geological prospecting borehole, foundation engineering, pavement breaking and fire-fighting and rescue etc., have efficient height, lightweight, easy to use, low cost and other advantages.According to the difference of drive energy, hand-held drifter mainly is divided into air drill, hydraulic gate and electric rock drill.
No matter which kind of hand-held drifter all needs the body of the direct nager of operating personnel, such as hitting drill steel take compressed air etc. as the powered piston, drill steel is applied to energy and realizes boring on the rock by bore bit.Frequency is higher and produce very large vibration and pass to the operator by the rock drill handgrip during machine works, and it is maximum that the dither that especially produces produces harm to human body.In China and some developing countries, the mine workings such as a lot of railways, highway, construction of hydropower facilities construction, metallurgy, coal tunnel and various rock drilling operation also will be used this class rock drill now and in the period of quite growing from now in a large number.
Test shows that generally in the scope of 30-60Hz, under rated power, frequency is lower for the operating frequency of rock drill, and impact energy is larger, and machine is just larger to people's reaction force, and the hardness of rock is higher, and bounce is also larger.So during rock drill, people's arm (or part health) need to apply certain power to machine to the people in operation, particularly during the eyelet of Drilling horizontal direction, depend merely on pneumatic feedleg and can't become effective.Along with the variation of formation hardness with the angle of punchinging, the power that the people puts on the rock drill also changes, and correspondingly, the reaction force that machine acts on the human body also changes.Because human body is subject to this reaction force acts of machine, people's health will produce acceleration.People's various organs will be to healthy generation harmful effect under the common interference of machine vibration frequency and acceleration.The people is in the situation of stance, and the intrinsic frequency of health each several part is respectively:
For example, for the air drill of a certain model, because quite rate or high or low situation can appear in the variation of air pressure.And the interfering frequency in this scope will be close with the intrinsic frequency at a lot of positions of human body, will produce covibration with some position of human body like this.Although there is damping to exist in the human body, when working long hours, will cause operating personnel's palm, arm is numb, and eyes grow dim, swell, and brains is fainted, and internal organ also can produce (comprising heart, stomach etc.) sense of discomfort.After long-term the use, can cause the multiple occupational diseases such as white finger disease, bring significant damage for user's physical and mental health.
In order to reduce vibration that above-mentioned rock drill produces to the infringement of operator ' s health in operating process, the following two kinds of approach of general employing, a kind of is the weight that increases rock drill self, but this mode must cause the increase of product cost, also runs counter to the light advantage of hand-held drifter simultaneously; Another kind of mode is to increase special damper mechanism on the rock drill fuselage, especially the handle portion at rock drill increases special shock absorber part, the vibration kinetic energy of machine is necessarily decayed, sheathed rubber sleeve elastomeric material on handle for example, perhaps the long shaft rod at rock drill increases shock-absorbing spring etc.In order to guarantee operating personnel's health, be badly in need of more effectively noise reduction technology of research and development, can better meet on the one hand the requirement of environmental legislation, and performance indications that on the other hand can the Effective Raise product.
Summary of the invention
Technical problem
The technical problem to be solved in the present invention provides a kind of air drill vibration-damped handle with multistage damping means, and it is at each join domain of handgrip and the region division damping element that directly contacts with human body, to reduce the rock drill vibration to the injury of human body.
Technical scheme
In order to solve above-mentioned technical problem, a kind of air drill vibration-damped handle of the present utility model comprises handle and is located at respectively the handle rack at handle two ends, described handle rack one end be hold the handle top circular-shaped, concave cavity, be provided with the first damping element of being made by elastomeric material between described circular-shaped, concave cavity inner surface and the handle top, the handle rack other end is connected with the stay bolt of air drill again.In the vibration-damped handle of the present utility model, respectively there is a handles frame handle both sides, and two handles are erected the effect of holding handle; Simultaneously, be arranged in the first damping element of handle rack circular-shaped, concave cavity with handle and handle rack isolation, make on the handle that vibration (this vibration is mainly produced and be delivered to handle rack by the rock drill fuselage) is not directly delivered to human body directly contacts of handle rack, but it is carried out the partial vibration energy attenuation.
Further, described the first damping element is set in the handle two ends, its cross section is rounded, it has circular inner hole, and the radius of described cross section is identical with the circular-shaped, concave cavity radius of handle rack, namely the first damping element adopts such structure: the space of its cross section outline and circular-shaped, concave cavity adapts, and its outer surface contacts with the inner surface of circular-shaped, concave cavity, thereby can accept to come from the vibration of handle rack; Have the circular hole that adapts with handle diameters in the middle of it, and be located on the handle by this circle hole sleeve.
Further, described the first damping element is provided with perforate, and described perforate circular array centered by the center of circle of its first damping element cross section distributes, and such perforate can have many groups.Usually, described perforate is opened on the radial direction of the first damping element cross section, and circular array evenly distributes.Described perforate makes the first damping element have better deformability, has further strengthened effectiveness in vibration suppression.
Further, described the first damping element is set in the handle two ends, and the endoporus of its cross section is rounded, and the outline of cross section is profile of tooth, and the circumradius of the outline of described cross section is identical with the circular-shaped, concave cavity radius of handle rack; The first damping element namely adopts such structure, and its surface is provided with one group of projection that one group of top contacts with the circular-shaped, concave cavity inner surface, and described projection distributes around the center circular array of the first damping element.Usually, described projection profile is circular-arc or dentation, these projections are evenly distributed on the circumference of the first damping element, make the profile of the first connector be similar to the shape of profile of tooth petal, described raised structures can accept to come from the vibration of all directions, thereby the vibration that the first damping element is produced for all directions has good effectiveness in vibration suppression.Further, described the first damping element is provided with one group of perforate at least, described perforate distributes around the center circular array of the first damping element, usually, described perforate is located on the radial direction of the first damping element cross section, and circular array evenly distributes, and namely the first damping element had both had the projection that is located at its circumferential surface, simultaneously also have a plurality of perforates, have better deformability.
Further, be provided with the second damping element of being made by elastomeric material with the junction of first, second stay bolt respectively at handle rack, described the second damping element is ring elastic parts, described first, second stay bolt is the part of rock drill body, is mainly used in vibration-damped handle is connected with the rock drill fuselage.Described damping element adopts the tubular structure of hollow, described stay bolt passes therethrough and is connected with handle rack, described ring elastic parts is arranged between stay bolt and the handle rack, the surfaces externally and internally of ring elastic parts respectively with the Surface Contact of stay bolt and handle rack, thereby the vibration (this vibration is mainly produced by the rock drill fuselage, and is passed to handle rack and handle by stay bolt) that stay bolt is produced obtains decay.
Further, described handle is the tubulose of hollow, and be arranged with the 3rd damping element of being made by elastomeric material, described the 3rd damping element radially has certain thickness, its cross section is provided with one group of through hole, described through hole distributes around the center circular array of the 3rd damping element, and runs through the 3rd damping element along the decreased food direction.
Described first, second, third damping element is all made by elastomeric material, such as elastomeric material, rubber-metal composite etc.
In the air drill vibration-damped handle of the present utility model, first, second, third damping element is respectively as a damper unit, be that the mechanical oscillation that rock drill produces will be through three other vibration dampings of level, every grade damping element plays the effect of isolation and damping absorption, makes and finally is delivered to greatly reduction of operator's vibration on hand.Simultaneously, damping element of the present utility model has unique structure, and the deformability of itself is stronger, also can carry out establishment to the vibration of all directions simultaneously, has promoted the effectiveness in vibration suppression of vibration-damped handle.
Beneficial effect
Air drill vibration-damped handle vibration insulating system of the present utility model adopts three grades of damper mechanisms, the vibration that produces during rock drill work will be passed through these three grades of damper mechanisms, every grade damping element plays the effect of isolation and damping absorption, and the vibration on hand of finally passing to the operator reduces greatly; Damping element adopts unique design, the overall structure intention is novel, deft design is reasonable, its rigidity with rock drill handle and body links this traditional structure and changes into flexible the binding, the function that has namely guaranteed original handle has significantly reduced again vibration, so just greatly reduce the direct injury to the operator, obviously improved user's operating mode.Air drill handgrip of the present utility model has wide range of applications applicable to the air drill of different model.
Description of drawings
Fig. 1 is the air drill vibration-damped handle structural representation of an embodiment of the utility model;
Fig. 2 be the A-A of Fig. 1 to schematic diagram, the first damping element shown in the figure;
Fig. 3 handle rack structural representation, the second damping element shown in the figure;
Fig. 4 is handle and handle rack structural representation, the 3rd damping element shown in the figure.
Description of reference numerals:
1 handle
21,21 ' first, second handle rack
22,22 ' first, second circular-shaped, concave cavity
31,32 first, second stay bolts
The 4,4 ' first damping element
41 perforates
The 5,5 ' second damping element
6 the 3rd damping elements
7 rock drill trigger switches
The specific embodiment
Present embodiment is a kind of air drill handgrip with three grades of damper mechanisms, as shown in Figure 1, first in command's frame 21 and second in command's frame 21 ' that it comprises handle 1 and is located at respectively handle 1 two ends, one end of described first in command's frame 21, one end of second in command's frame 21 ' respectively is provided with the first circular-shaped, concave cavity 22 of holding handle 1 top, the second circular-shaped, concave cavity 22 ', each circular-shaped, concave cavity inner surface and handle 1 top among are provided with the first damping element 4 of being made by elastomeric material, 4 ', and first in command's frame 21, the other end of second in command's frame 21 ' is connected with the air drill fuselage, thereby this vibration-damped handle and rock drill are linked together.Described the first damping element 4,4 ' is set in handle 1 two ends, its cross section endoporus is rounded and outline is profile of tooth, as a kind of embodiment of the present utility model, the external radius of a circle of described cross section outline and handle rack 21,21 ' circular-shaped, concave cavity 22,22 ' radius are identical.Rock drill trigger switch 7 also is installed on first in command's frame 21.
As shown in Figure 2, described the first damping element 4,4 ' respectively is provided with 8 perforates 41, described 8 perforates 41 circular array centered by the center of circle of its first damping element 4,4 ' cross section distributes, described perforate 41 both can be arranged near the cross section center of circle, also can arrange near cross-sectional circumferential, in order to strengthen the effectiveness in vibration suppression of the first damping element, the perforate of one or more groups this structure can also be set again, the number of perforate also can be more.
As shown in Figure 2, as another kind of embodiment of the present utility model, described the first damping element 4,4 ' is set in handle 1 two ends, its surface is provided with the projection that 8 tops contact with circular-shaped, concave cavity 22,22 ' inner surface, described 8 projections distribute around the first damping element 4,4 ' center circular array, if the first damping element has described projection and above-mentioned perforate simultaneously, then the position of each perforate and projection is corresponding one by one.
Such as Fig. 1, shown in Figure 3, two handles framves 21,21 ' the other end all are provided with and hold the first stay bolt 31 that links to each other with the air drill fuselage, the connector of the second stay bolt 32 1 ends, described connector and the first stay bolt 31, the second stay bolt 32 amongs are provided with the second damping element 5,5 ' of being made by elastomeric material, and described the second damping element 5,5 ' is ring elastic parts.
Such as Fig. 1, shown in Figure 4, described handle 1 is the tubulose of hollow, and be arranged with the 3rd damping element 6 of being made by elastomeric material, described the 3rd damping element 6 is provided with one group of through hole that runs through along its length direction, and described through hole distributes around the center circular array of the 3rd damping element 6.
Each damping element in the present embodiment all adopts high-intensity elastomeric material to make, and for example elastomeric material also can adopt spring, perhaps adopts the composite of rubber and elastic metallic.
Above embodiment is exemplary embodiment of the present utility model only, is not used in restriction the utility model, and protection domain of the present utility model is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the utility model in essence of the present utility model and protection domain, this modification or be equal to replacement and also should be considered as dropping in the protection domain of the present utility model.
Claims (7)
1. air drill vibration-damped handle, comprise handle (1) and be located at respectively the handle rack (21 at handle (1) two ends, 21 '), it is characterized in that, described handle rack (21,21 ') end be provided with hold handle (1) top circular-shaped, concave cavity (22,22 '), described circular-shaped, concave cavity (22,22 ') be provided with the first damping element (4 of being made by elastomeric material between inner surface and handle (1) top, 4 '), handle rack (21, the 21 ') other end is connected with the air drill fuselage.
2. air drill vibration-damped handle as claimed in claim 1, it is characterized in that, described the first damping element (4,4 ') be set in handle (1) two ends, its cross section is rounded, and circular-shaped, concave cavity (22, the 22 ') radius of the radius of described cross section and handle rack (21,21 ') is identical.
3. air drill vibration-damped handle as claimed in claim 2, it is characterized in that, described the first damping element (4,4 ') be provided with at least one group of perforate (41), described perforate (41) circular array centered by the center of circle of its first damping element (4,4 ') cross section distributes.
4. air drill vibration-damped handle as claimed in claim 1, it is characterized in that, described the first damping element (4,4 ') be set in handle (1) two ends, the endoporus of its cross section is rounded, the outline of cross section is profile of tooth, and circular-shaped, concave cavity (22, the 22 ') radius of the external radius of a circle of the outline of described cross section and handle rack (21,21 ') is identical.
5. air drill vibration-damped handle as claimed in claim 4, it is characterized in that described the first damping element (4,4 ') is provided with at least one group of perforate (41), described perforate (41) distributes around the center circular array of the first damping element (4,4 ').
6. such as each described air drill vibration-damped handle of claim 1 to 5, it is characterized in that, handle rack (21,21 ') is connected with the air drill fuselage by first, second stay bolt (31,32) respectively, at handle rack (21,21 ') junction with first, second stay bolt (31,32) is provided with the second damping element (5,5 ') of being made by elastomeric material, described the second damping element (5,5 ') is ring elastic parts.
7. air drill vibration-damped handle as claimed in claim 6, it is characterized in that, described handle (1) is the tubulose of hollow, and be arranged with the 3rd damping element (6) of being made by elastomeric material, described the 3rd damping element (6) is provided with one group of through hole that runs through along its length direction, and described through hole distributes around the center circular array of the 3rd damping element (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220479963 CN202846506U (en) | 2012-02-16 | 2012-09-20 | Shake-reducing handgrip of pneumatic rock drill |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220049743 | 2012-02-16 | ||
| CN201220049743.4 | 2012-02-16 | ||
| CN 201220479963 CN202846506U (en) | 2012-02-16 | 2012-09-20 | Shake-reducing handgrip of pneumatic rock drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202846506U true CN202846506U (en) | 2013-04-03 |
Family
ID=47977742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220479963 Expired - Fee Related CN202846506U (en) | 2012-02-16 | 2012-09-20 | Shake-reducing handgrip of pneumatic rock drill |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202846506U (en) |
| WO (1) | WO2013120404A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108656036A (en) * | 2018-07-10 | 2018-10-16 | 山东天瑞重工有限公司 | A kind of rock drill vibration damping handrail handle |
| CN110254103A (en) * | 2019-07-18 | 2019-09-20 | 新兴铸管股份有限公司 | A kind of chisel holding antihunting device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481415B (en) * | 2014-11-11 | 2017-11-03 | 山东科技大学 | A kind of light-weight handheld rock drill shock bracket |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE447501B (en) * | 1985-11-14 | 1986-11-17 | Kometa Oy | Shock absorber for a hammer drill for rock, specifically a drilling machine whose stroke is applied from above |
| CN2246051Y (en) * | 1995-05-31 | 1997-01-29 | 天水风动工具厂 | Light-weight hand quarrying machine |
| AU2313400A (en) * | 1999-02-10 | 2000-08-29 | Anglo Operations Limited | Rock drill handle |
| CN2614256Y (en) * | 2003-01-31 | 2004-05-05 | 翁益真 | Portable hand held pneumatic rock drill |
| US7300243B2 (en) * | 2003-12-05 | 2007-11-27 | Honda Motor Co., Ltd. | Power blower |
| CN200998892Y (en) * | 2007-01-29 | 2008-01-02 | 蔡敏 | Hand-held pneumatic rock drifter |
| CN201321815Y (en) * | 2008-12-29 | 2009-10-07 | 李永胜 | Shock-absorbing handle for high-speed rock drill |
| CN102114670B (en) * | 2010-01-04 | 2015-05-20 | 深圳市普隆重工有限公司 | Rock drilling machine and damping operating system thereof |
-
2012
- 2012-09-20 CN CN 201220479963 patent/CN202846506U/en not_active Expired - Fee Related
-
2013
- 2013-01-14 WO PCT/CN2013/070407 patent/WO2013120404A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108656036A (en) * | 2018-07-10 | 2018-10-16 | 山东天瑞重工有限公司 | A kind of rock drill vibration damping handrail handle |
| CN108656036B (en) * | 2018-07-10 | 2023-11-10 | 山东天瑞重工有限公司 | Damping handrail handle for rock drill |
| CN110254103A (en) * | 2019-07-18 | 2019-09-20 | 新兴铸管股份有限公司 | A kind of chisel holding antihunting device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013120404A1 (en) | 2013-08-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180709 Address after: 075105 No. 1 Changzhi South Road, Xuanhua District, Zhangjiakou, Hebei. Patentee after: An Bai Tuo (Zhangjiakou) Construction Mine Equipment Co.,Ltd. Address before: 110027 12 Kunming Hu Street, Shenyang economic and Technological Development Zone, Liaoning Patentee before: Shenyang Ruifeng Machinery Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210519 Address after: 065400 Xinzhuang village, Qukou Town, Xianghe County, Langfang City, Hebei Province Patentee after: Xianghe Shenli Pneumatic Machinery Factory Address before: 075105 No. 1 Changzhi South Road, Xuanhua District, Zhangjiakou, Hebei. Patentee before: An Bai Tuo (Zhangjiakou) Construction Mine Equipment Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20210920 |