TWM244164U - Improved structure for impacting portion of pneumatic wrench - Google Patents

Description

M244164 V. Description of creation (l) [Technical field to which the new type belongs is a modification of a pneumatic wrench Modification of the impact linkage structure of a pneumatic wrench, improvement of the concrete structure ', especially a shape, improving torsional moment and reducing stress concentration The connecting rib structure of the moving shaft is provided with separation ribs, which can improve the wear and tear of the hammers, and the rigidity of the hammer seat, and improve the "life, shape, and enhanced hammering" of the service life. The structure of the striking part of the backhand of the moving 1 [Previous technology] Pneumatic wrenches are mainly used in large-scale work. Because the screws and nuts they are applied are fastened or loosened, the torque generated by them is also locked. The torque is also very strong. Please refer to the structure of the second body. The structure of the conventional pneumatic wrench is used to strike the structure. 10 Main: not shown in the figure, the bolt hole at the general end is connected to the air motor sleeve. Hammer seat u 'One into' Hammer seat 11 for two hammers 13, 14 ^ For the drive shaft 12 sets of joints and positioning, within two strikes 13'14; m fixed pin 15, 16 The interlocking ribs 121 are attached to each other and connected to the four holes 131, 141 and the drive shaft 12. When the pneumatic motor is linked, the bell 13 and 14 it will be synchronized to rotate the shaft 12, and the hammers will be driven by two different orientations. 2. The interlocking rib 121 rotates synchronously to drive the transmission shaft 12 to rotate. In the month, J ^ the conventional strike structure has the following disadvantages in use: ^ The linking ribs of the drive shaft are prone to stress concentration and brittle cracks: as shown in the first and second figures, the linking ribs 121 of the drive shaft 12 bear Hitting the transmission force of 4 generates high torque output, so the interlocking ribs i2i phase M244164 V. Creation instructions (2) For bearing a considerable load, especially the corner 隅 A of the interlocking ribs 1 2 1 there will be a stress concentration phenomenon, As a result, brittle fracture occurs. 2. The hammers rub against each other: Please refer to the second picture. Under high-speed rotation, the two hammers 1 3, 1 4 located next to each other will generate heat and wear due to high-speed friction. Consumption of energy. 3. The hammer seat has poor rigidity and there is also a phenomenon of stress concentration: Please refer to the first and fourth figures. The hammer seat 11 that transmits power will also have the phenomenon of stress concentration at the angle 隅 B inside it. The hammer seat 11 does not have any structural design for dispersing stress, so brittle cracks p will also occur at the corner B, reducing the service life. 4 · The force of the hammer and the fixing pin: The hammer 1 3, 1 4 is pivotally positioned on the hammer seat 11 by two fixing pins 1 5 and 16 and the two fixing pins 15 and 16 are subjected to hammering. The force of the seat 11 and the hammers 13 and 14 are linked, so the hammer seat n transmits the force to push the hammer 丨 3 and 14 when it is rotated 'to transmit the force completely through the fixing pins 1 5 and 16 and the pin connection hole of the hammer seat 11 11 2, U 3 is therefore subject to the stress of the fixed pins j 5, 丨 6, due to the small pressure bearing area of the pin connection holes 丨 2 and 丨 3, the rigidity of the pin connection holes 11 2, 11 3 is poor and must be effectively extended The length of the pin holes 112 and 113 results in almost the same length of the pin holes 112 and 113, and the hammer seat 11 is the same length. Therefore, the drilling and reaming of the pin holes 11 2 and 13 have a large number of hits and a relative increase. Processing costs. [New content] The combined structure of the pneumatic wrench's striking structure on the transmission shaft and the bell seat of the driving shaft will cause the phenomenon of stress concentration and damage, and the two hammers located next to it.

M244164 V. Creation instructions (3) There will be a frictional service life due to the creation of the driving shaft and the linked body set after the hammer; the bell strike seat is set to 'for the two pins to be pivoted and connected to this creation setting The interlocking rib image and hammering avoid friction and work stress, and should be integrally formed on the clock to effectively promote the knot. [Embodiment] This affects the power and greatly reduces. The utility model provides a rib set for a pneumatic wrench and a hammer seat, which is provided with a reinforcement and a separation protrusion, so that the hammer can move the hammer to provide the rigidity of the striking force in the seat. In addition to the depletion of the part, there are shortcomings in the corner pin and the wear and tear, which make the hitting part hand-made. The rib is connected to the rib to make and contain a structure. Can increase, and replace Gu Geming. Improve the structure of the driving shaft at the end of the driving shaft. The two internal chambers of the hammer striking base are respectively hit with high rigidity at the end of the driving shaft to change the response. The section of the front rib is provided with a structure of two receiving pins and a protruding portion. Corresponding to the front and rear end of the force concentration, two striking bells, rigidity, scattered length and manufacturing cost,

Please refer to the fifth and sixth figures. This creation provides an improvement of the striking structure of the pneumatic wrench. The striking structure mainly includes a hammer seat 20, and the bolt slot 20 at the 20-end of the hammer seat is for the socket of the air motor. Linked, the other end of the perforation 22 is for the drive shaft 30 to pass through, the hammer seat 200 for two strike clocks 4 丨, 4 2 are accommodated in the front and back, and are fixed by fixing pins 431, 432 to strike the hammer 41, 42 are provided with special-shaped holes 411, 421 for the interlocking movement of the linkage ribs 31, 32 of the transmission shaft 30, of which

M244164 Fifth, a description of the creation (4) is provided with a reinforcing rib 3 3 at the edge to connect the two interlocking ribs 3 1 and 3 2; the bell striking base 20, and the thrust walls 2 3 on both sides of the interior protrude with a separation rib ' The partition rib 24 is used to divide the interior of the hammer seat 20 into a front accommodation chamber 25 and a rear accommodation chamber 26, so that the two front and rear accommodation hammers 41 and 42 are separated, and the two hammers 41 are positioned and linked. , 42 are provided with fixing pins 431, 432 and convex pin rods 271, 2 72 (as shown in Figures 7 and 8). The fixing pins 431, 432 correspond to the arc slot holes 412, 422 of the hammers 41, 42. The pins 271 and 272 correspond to the wide samples 413 and 423.

I According to the above structural characteristics, the creative and functional characteristics of this creation are as follows: § Elimination of the stress concentration phenomenon of the linking ribs of the drive shaft: Linking; As shown in the figure, the a and 32 provided at the front and rear ends of the end of the drive shaft 30 are mainly subject to the torsion of the two hammers 41 and 42 to generate torsion: the continuous stress of the continuous edge space between the two ribs 31 and 32 that should be provided Two: The continuous ribs 31 and 32 continue to be -body, so that the original stress and two points & the full 'Xiao miss' stress will be carried by the reinforcement rib 33, two of seven and two 2: =! =:' And thus reduce the stress Value, which makes the torque value of the link 0, 2 and Cheng Wen more asked, and the social broadcast has just been longer. 4 knife value π structure has better rigidity, service life § Hammer separation without fear of friction: Please refer to the fifth, sixth, and 1 ^ open by the separation rib 2 4 彡 乂 彡 μ hammer seat 2 0 inside The two sides are separated by 42 and become the ρρρ block. 26. The two hammers 41 will work independently without rubbing each other. The hammers 41 and 42 will operate independently. The phenomenon of teasing and consuming each other will be completely improved. Lack

M244164 V. Creation description (5) points, make the two hammers 4 1 and 4 2 have a longer service life and reduce the energy consumption caused by wear. § The structural rigidity of the bell striker is increased: Please refer to Figures 5 and 6. As shown in Figures 5 and 6, the transmission of the torsion force of the striker is received by the bolt slot 21 of the hammer striker 20 and received by the air motor. The pins 431 and 432 and the convex pins 271 and 2 72 push the hammers 41 and 42 on the side, and then the driving shaft 30 rotates by the hammers 41 and 42. Therefore, the thrust wall 23 plays a part of torque transmission, and the long and thin thrust The wall 23 increases its structural rigidity through the partition ribs 24, which can reduce the shape of the thrust wall 23 when it is under stress, absorb part of the stress, and avoid excessive stress concentration at the angle 隅 = after the stress is reduced ', the structural rigidity naturally increases, and the stress concentration The phenomenon is self-eliminating, and the service life is relatively improved. § The integration of the fixed pin and the convex pin rod, to improve the structural rigidity and reduce the structure, please refer to the fifth, sixth, and seventh drawings #, the fixed pin of this creation. 432 is shorter than the traditional one by / 2, so the pin connection hole 281, 282 pairs are halved, processed into ... 272 is integrated with the hammer seat 20 to form an impact strength, which improves the service life. 0 This is relative to its "rigidity. From the above description, we can know that this creation has the following progressive effects to reinforce a 1-rib t-axis; the ring between the driving ribs of the transmission shaft is provided with a phenomenon to enhance the knot: = 寿 ： 散Stress, eliminate stress concentration 2. The hammers do not rub against each other, the hammer seat separates the two strikes by the ribs

M244164 V. Creation instructions (6) open without friction and kinetic energy loss 3. Function of the bell striker's lifting force to reduce stress 4 · Length of fixed pin Integral molding of hammer for life. With the aforementioned advantages, it can improve the effectiveness of the blow and improve the sexual performance. It is possible to reduce the frictional heat and increase the use of your brother ’s life. The rigidity is improved. The partition rib in the hammer seat has the rigidity of the thrust wall and the phenomenon of bearing the torsional stress set, which relatively prolongs the service life. The processing cost of the pin hole is reduced by half, and the convex pin of the seat improves the structural rigidity. We can learn that the transmission shaft and hammer J 2 Gang created by this invention can be lifted. There should be many innovative designs, such as the phenomenon of 2 concentration, which can meet the requirements of the new patent Shen Shiqing 0 friction loss to strengthen the rigidity, reduce the application and application of the value of the force to improve the seat can take into account the progress requirements, M244164

The first is a three-dimensional exploded view of the striking structure of a conventional pneumatic wrench. The second is a combined sectional view of a conventional pneumatic wrench. The second is a plan view of a conventional drive shaft. The fourth is a plan view of a conventional hammer seat. The fifth is a three-dimensional view of this creation. Exploded view. The sixth figure is the combined sectional view of this creation. The seventh figure is the sectional view of the hammer seat of this creation. The eighth figure is the end view of this creation (aa sectional view of the seventh figure). 0 striking structure 11 hammer seat 111 bolt slot 11 2, 11 3 pin connection hole 1 2 drive shaft 1 2 1 linkage rib 1 3, 1 4 hammer 1 3 1, 1 41 special-shaped hole 15, 16 fixing pin [本Creation] 2 0 hammer seat 2 1 bolt slot 22 perforation 2 3 thrust wall 24 partition rib 25 front accommodation chamber 26 rear accommodation chamber 271, 272 convex pin lever 281, 282 pin connection hole 3 0 drive shaft 3 1, 3 2 Linking ribs 33 Reinforcing ribs 41, 42 Hammer 4 1 1, 4 21 Special-shaped holes 412, 422 Arc slot holes 41 3, 423 Wide slot

Page 11 M244164 Schematic description of 431, 432 fixing pin

Claims (1)

M244164 12 Hammer 2: U: Beat: The structure of the structure is improved. The striking structure mainly includes the perforation system at the other end = moving groove, which is used for the pneumatic motor to interlock and accommodate. It is positioned by bolts and fixed by a fixed pin. The main feature of the rib sleeve is that there are 4 holes for the transmission shaft ring to be installed intermittently after the transmission, and at the edge of the intermittent ^ χ 碉 碉 strong ribs to connect the two continuous ribs. Good :: The structure of the striking part of the pneumatic wrench described in m r1 is changed! The middle part of the thrust wall on the two sides of the thrust wall is provided with a separating rib, which is separated by a hammer that is accommodated in the front and rear. Make two 3 good as repeated two single? λ The structure of the impact part of the impact part of the pneumatic wrench described in Item 1 is provided with a fixed pin and a fixed pin, which is integrally formed with the fixed pin of the hammer column, corresponding to the arc slot hole of the hammer, and the convex pin rod system. Correspondence sees the groove as its characteristic person. Ding τ Page 13