TWM632226U - Powered torque wrench with support mechanism - Google Patents

Abstract

A power torque wrench with a supporting mechanism, comprising a casing, a ratchet mechanism, a transmission mechanism and a supporting mechanism, wherein the ratchet mechanism includes a rocking member and a rotating member; the transmission mechanism includes first and second transmission rods inserted in the casing, The rear end of the second transmission rod is driven by the power source and rotates to drive the first transmission rod to rotate, the first transmission rod assembles the universal member, and the universal member rotates with the rotation of the first transmission rod to drive the rocking member to swing, and the rotating member follows the rocking. The component swings and rotates; the support mechanism is detachably assembled to the housing, and the first transmission rod and/or the second transmission rod of the transmission mechanism is supported by the support mechanism when rotating. Thereby, the power torque wrench can not only increase the transmission efficiency of the transmission mechanism, but also prolong the service life of the transmission mechanism.

Description

Powered torque wrench with support mechanism

This creation is about a power type torque wrench, especially about a power type torque wrench with a support mechanism.

For example, when parts such as screws, bolts or nuts leave the factory, the product or maintenance manual will indicate their torque requirements, but how to operate the parts according to the torque requirements, it is necessary to use the torque that can express the torque value of the load in an electronic or mechanical structure. wrench to meet the requirements.

The torque wrench can provide users to set the torque according to the torque requirements, and then use the torque wrench to operate the parts, so there is no need to worry about the parts being damaged due to over-tightening or loose due to lack of locking.

In addition, the common torque wrench is operated manually, but in order to emphasize time-saving and labor-saving, the torque wrench with power is gradually used, especially the electric or pneumatic is the most common, electric is powered by power or battery, and pneumatic is compressed Air as power.

At present, according to the structure disclosed in Taiwan Patent No. M556196, the place where the first shaft and the second shaft are combined with a universal structure is in a suspended and unsupported state, and the rotation process will affect the first shaft and the second shaft. Transmission efficiency, and thus shorten the service life of the first shaft and the second shaft.

The purpose of the present invention is to provide a power torque wrench with a support mechanism to solve the above-mentioned difficulties in the prior art.

According to an embodiment of the present invention, a power torque wrench with a support mechanism is provided, comprising: a casing including a first casing, a second casing and a universal member, the first casing being inserted into the second casing , the front end of the first shell extends a neck with an enlarged diameter, the neck extends axially with two lugs, and the two lugs of the first shell are exposed outside the second shell; a ratchet mechanism includes a rocking member and a a rotating member, the rocking member is swivelably assembled between the two lugs of the first shell, the rotating member is rotatably assembled at the front end of the rocking member, and the rotating member rotates as the rocking member swings; a The transmission mechanism includes a first transmission rod and a second transmission rod, the rear end of the first transmission rod and the front end of the second transmission rod are detachably assembled, the first and second transmission rods are inserted in the casing, The rear end of the second transmission rod is driven by a power source to rotate, the first transmission rod rotates with the second transmission rod, and a universal member is assembled at the front end of the first transmission rod, and the universal member follows the rotation of the second transmission rod. The rotation of the first transmission rod drives the rocking member to swing; and a support mechanism is assembled on the side wall of the casing, and the transmission mechanism is supported by the support mechanism when rotating.

In this way, through the structures of the above embodiments, the above-mentioned power torque wrench can not only increase the transmission efficiency of the first and second transmission rods of the transmission mechanism, but also prolong the service life of the first and second transmission rods of the transmission mechanism.

The above is only used to describe the problem to be solved by this creation, the technical means to solve the problem, and the effect it produces. The specific details of this creation will be introduced in detail in the following embodiments and related drawings.

In order to make your review committee have a further understanding of this creation, the preferred embodiment is hereby given and matched with the drawings, and the details are as follows:

Please refer to FIGS. 1 , 2 and 3 , the power torque wrench 10 includes a housing 20 , a ratchet mechanism 30 , a transmission mechanism 40 and a support mechanism 50 .

The casing 20 includes a first casing 21 and a second casing 22, and the first and second casings 21 and 22 are assembled coaxially.

The first shell 21 is hollow and tubular, and has a first accommodating portion 211 axially formed thereon. The front end of the first shell 21 extends with a neck 212 with an enlarged diameter. The neck 212 extends axially with two lugs 213 facing each other.

The second shell 22 is also hollow tubular, and has a second accommodating portion 221 formed in the axial direction. The diameter of the second shell 22 is larger than the diameter of the first shell 21, so that the first shell 21 is inserted into the second shell 22, and the second shell 22 is inserted into the second shell 22. The front ends of the second shells 22 abut against the necks 212 of the first shells 21 , so that the necks 212 and the two lugs 213 of the first shells 21 are exposed outside the second shells 22 . In addition, the first accommodating portions 211 of the first shells 21 It overlaps with the front section of the second accommodating portion 221 of the second shell 22 , and the rear section of the second accommodating portion 221 of the second shell 22 is provided with another mechanism which will be described later.

The first and second shells 21 and 22 are detachably assembled from each other. The detachable assembly is to use two screws 20A facing each other, and lock them toward the front end of the second shell 22 and the first shell 21 near the neck 212 .

The ratchet mechanism 30 is located at the front end of the casing 20 and is disposed on the first casing 21 . The ratchet mechanism 30 includes a rocking member 31 and a rotating member 32. The rocking member 31 is swivelably assembled between the two lugs 213 of the first shell 21, and the rotating member 32 is rotatably assembled at the front end of the rocking member 31, and the two axial The ends respectively pass through the two lugs 213 of the first shell 21 .

The rocking member 31 is formed with a semicircular first assembly hole 311 and a circular second assembly hole 312 , the first and second assembly holes 311 and 312 are adjacent to each other, and the diameter of the first assembly hole 311 is smaller than that of the second assembly hole The first assembly hole 311 is assembled with a drive shaft sleeve 313 , and the rotating member 32 is rotatably assembled in the second assembly hole 312 .

When the driving sleeve 313 is driven, the rocking member 31 swings as the driving sleeve 313 moves, and the rotating member 32 rotates clockwise or counterclockwise as the rocking member 31 swings. The swinging direction of the rocking member 31 intersects with the locking direction of the screw 20A.

The transmission mechanism 40 includes a first transmission rod 401 , a second transmission rod 402 and a shaft pin 40A. The first and second transmission rods 401 and 402 are cylindrical, and the first and second transmission rods 401 and 402 are assembled coaxially.

The first and second transmission rods 401 and 402 are inserted into the casing 20 , so that the first transmission rod 401 is disposed in the first accommodating portion 211 of the first casing 21 , and the second transmission rod 402 is located in the first transmission rod 401 Afterwards, the second transmission rod 402 is disposed in the rear section of the second accommodating portion 221 of the second casing 22 , and the front end portion of the second transmission rod 402 is disposed in the first accommodating portion 211 of the first casing 21 .

The rear end of the second transmission rod 402 is driven by the power source P (eg, pneumatic) to rotate, and the first transmission rod 401 rotates along with the second transmission rod 402 . A universal member 41 is assembled at the front end of the first transmission rod 401 , and the universal member 41 drives the rocking member 31 to swing with the rotation of the first transmission rod 401 . The universal member 41 includes a driving shaft 42 , a bushing 43 , a driven shaft 44 , and a shaft pin 45 .

The rear end of the driving shaft 42 and the front end of the first transmission rod 401 are detachably assembled. The detachable assembly is that the rear end of the driving shaft 42 axially extends with a recess 421, and the recess 421 is used for the front end of the first transmission rod 401 to be inserted. Next, the shaft pin 45 is radially inserted into the two opposite side walls of the concave portion 421 and the front end of the first transmission rod 401 , and two lugs 422 are axially extended from the front end of the driving shaft 42 to face each other.

The front end of the driven shaft 44 is axially formed with an eccentric convex portion 441. The eccentric convex portion 441 is eccentrically rotatable and assembled on the driving sleeve 313, so that the driving sleeve 313 moves with the eccentric convex portion 441. Front and back circular action.

The rear end of the driven shaft 44 also extends axially with two lugs 442 facing each other, and the outer side wall of the driven shaft 44 between the eccentric convex portion 441 and the two lugs 442 is sleeved with a bearing 443 , and the bearing 443 is rotatable is assembled on the inner side wall surface of the neck 212 of the first shell 21 .

The bushing 43 is a rectangular body, and the front and rear ends are at any two opposite side walls that are 90 degrees apart from each other with the two lugs 422 of the driving shaft 42 and the two lugs 442 of the driven shaft 44 passing through the pivot pins 45 . Therefore, the universal member 41 can smoothly rotate and drive the rocking member 31 to swing.

The rear end of the first transmission rod 401 and the front end of the second transmission rod 402 are detachably assembled. The detachable assembly is that the rear end of the first transmission rod 401 is axially extended with a recess 4011, and the recess 4011 is used for the second transmission rod 402. The front end is inserted, and then the shaft pin 40A is radially inserted into the two opposite side walls of the concave portion 4011 and the front end of the second transmission rod 402 .

Please refer to FIG. 2 , FIG. 3 and FIG. 4 , the support mechanism 50 is used to support the rotational movement and reduce friction loss, so that the transmission mechanism 40 is supported by the support mechanism 50 when rotating. The support mechanism 50 is detachably assembled on the casing 20 . The number of the support mechanism 50 is two sets, each set includes two stoppers 51 , a bearing 52 and a plurality of screws 53 .

The two stoppers 51 are detachably assembled on the two opposite side walls of the first and second shells 21 and 22, and one end surface of each stopper 51 is cut in line with the outer side wall of the second shell 22, and each stopper The other end surface of 51 is formed with an arc-shaped blocking surface 511 . Finally, screws 53 are used to lock the second shell 22 and the first shell 21 from the outside of the casing 20 on the opposite side walls of the blocking member 51 .

The bearing 52 of the support mechanism 50 is a needle roller bearing, a ball bearing or a bushing/bushing, the bearing 52 is sleeved on the transmission mechanism 40, and further the bearings 52 of each group of support mechanisms 50 are respectively sleeved on the first transmission rod The front end of 401 and the front end of the second transmission rod 402, one set of bearings 52 of the support mechanism 50 is close to the assembly of the first transmission rod 401 and the universal member 41, and the other set of bearings 52 of the support mechanism 50 is close to the first and second transmission rods 401 and 402 are assembled.

The bearing 52 is supported by the blocking surfaces 511 of the two blocking members 51 , and the first and second transmission rods 401 and 402 rotate on the blocking member 51 through the bearing 52 . The first and second transmission rods 401 and 402 have a certain length after being assembled, but under the support of the support mechanism 50 , the first and second transmission rods 401 and 402 can be driven to rotate more smoothly.

In addition, the rear section of the second accommodating portion 221 of the second shell 22 has another mechanism to cooperate, and the rear end of the first shell 21 is assembled with a torsion mechanism 60, which is penetrated by the second transmission rod 402, so that the torsion mechanism 60 is disposed in the first shell 21. The second accommodating portion 221 of the second shell 22 is in the rear section.

Referring to FIGS. 5 , 6 , 7 and 8 , the rotating member 32 is further assembled with a quick release group 33 . A drive head 321 is formed at one end of the rotating member 32 exposed to one of its lugs 213, and the drive head 321 is used to cooperate with the workpiece (such as a sleeve). And the through hole 322 is formed with a first blocking portion 3221 on the inner side wall surface of the driving head 321 , and the driving head 321 is radially formed with a clamping hole 323 , so that the through hole 322 and the clamping hole 323 communicate with each other. Tapered toward the outer sidewall of the drive head 321 .

The rotating member 32 is assembled with a quick release group 33 in the through hole 322. The quick release group 33 includes a control rod 331, a limiter 332, an elastic body 333 and a positioning body 334, wherein:

The control rod 331 is in the shape of a round rod. The outer sidewall surface of the middle section of the control rod 331 is formed with a second blocking portion 3311 corresponding to the first blocking portion 3221, and a displacement hole 3312 is radially formed near the second blocking portion 3311. The displacement hole 3312 The limiting member 332 is inserted to limit the axial displacement of the control rod 331 only in the through hole 322 , and the length of the displacement hole 3312 determines the displacement stroke of the control rod 331 . The control rod 331 is formed with a clamping slot 3313 corresponding to the clamping hole 323 .

The elastic body 333 can be a spring, and the elastic body 333 is accommodated in the through hole 322 and is penetrated by the control rod 331 , so that the two ends of the elastic body 333 respectively bounce against the first and second blocking parts 3221 , 3311 , giving the control rod 331 the required displacement. required elasticity.

The positioning body 334 is spherical, and is accommodated in the clamping hole 323 and pushed by the control rod 331 , so that the positioning body 334 is partially exposed to the outside of the driving head 321 .

7 and 8, when the control rod 331 is displaced by an external force, the clamping hole 323 and the clamping slot 3313 are opposite to each other, and the positioning body 334 is not pushed by the control rod 331, so that the positioning body 334 retreats toward the clamping slot 3313. When the control rod 331 loses the external force, the elastic body 333 pushes against the control rod 331 to reset, and the positioning body 334 also resets as it is pushed by the control rod 331 . Therefore, the positioning body 334 pushed out can position the workpiece on the driving head 321 , and the positioning body 334 retracted inward can enable the workpiece to be removed from the driving head 321 .

To sum up, the power torque wrench 10 uses the support mechanism 50 to support the rotational movement of the first and second transmission rods 401 and 402 of the transmission mechanism 40 , thereby effectively lowering the first and second transmission rods 401 and 402 of the transmission mechanism 40 . 402 resistance while turning. In this way, through the structures of the above embodiments, the present invention can not only increase the transmission efficiency of the first and second transmission rods 401 and 402 of the transmission mechanism 40 , but also extend the first and second transmission rods 401 and 402 of the transmission mechanism 40 . service life.

Finally, the above disclosed embodiments are not intended to limit the present creation. Anyone who is familiar with this technique can make various changes and modifications without departing from the spirit and scope of the present creation, and they can be protected in this book. in creation. Therefore, the scope of protection of this creation should be determined by the scope of the appended patent application.

[this creation] 10: Power torque wrench 20: Shell 20A: Screw 21: First Shell 211: First accommodating part 212: Neck 213: lugs 22: Second Shell 221: Second accommodating part 30: Ratchet mechanism 31: Rocking member 311: The first assembly hole 312: Second assembly hole 313: Drive bushing 32: Rotating components 321: drive head 322: perforation 3221: First gear 323: Card hole 33: Quick off group 331: Joystick 3311: Second block 3312: Displacement hole 3313: Card slot 332: Limiter 333: Elastomer 334: Orientation body 40: Transmission mechanism 40A: Axle pin 401: The first transmission rod 4011: Recess 402: Second transmission rod 41: Universal components 42: Drive shaft 421: Recess 422: lugs 43: Bushing 44: driven shaft 441: Eccentric convex part 442: lugs 443: Bearing 45: Axle pin 50: Supporting mechanism 51: Stopper 511: Block face 52: Bearing 53: Screws P: power source 60: Torque mechanism

Figure 1: The three-dimensional schematic diagram of the power torque wrench of this creation. Figure 2: The three-dimensional exploded view of the power torque wrench of this creation. Figure 3: The combined cross-section and partial enlarged view of the power torque wrench of this creation. Figure 4: The partial combined cross-sectional view of Figure 3 of the power torque wrench of this creation. Figure 5: Schematic diagram of the partial assembly of the power torque wrench of this creation. Figure 6: The combined cross-sectional view of Figure 5 of the creative power torque wrench. Figure 7: Cross-sectional view of the quick-release group of the power torque wrench in the present creation without action. Figure 8: Cross-sectional view of the quick release group of the creative power torque wrench in action.

10: Power torque wrench

20: Shell

30: Ratchet mechanism

50: Supporting mechanism

P: power source

Claims (10)

A power torque wrench with a support mechanism, comprising: A casing (20) comprising a first casing (21) and a second casing (22), the first casing (21) being inserted into the second casing (22), the first casing (21) ) a neck (212) whose front end extends with an enlarged diameter, the neck (212) extends axially with two lugs (213), and the two lugs (213) of the first shell (21) are exposed to the second shell (22) Outside; A ratchet mechanism (30) comprising a rocking member (31) and a rotating member (32), the rocking member (31) can be swivelably assembled to the two lugs (213) of the first shell (21) In between, the rotating member (32) is rotatably assembled at the front end of the rocking member (31), and the rotating member (32) rotates as the rocking member (31) swings; A transmission mechanism (40) comprising a first transmission rod (401), a second transmission rod (402) and a universal member (41), the rear end of the first transmission rod (401) and the second transmission The front end of the rod (402) can be disassembled and assembled, the first and second transmission rods (401, 402) are inserted into the housing (20), and the rear end of the second transmission rod (402) comes from a power source ( P) is driven to rotate, the first transmission rod (401) rotates along with the second transmission rod (402), the first transmission rod (401) is assembled at the front end of the universal member (41), the universal member (41) along with the rotation of the first transmission rod (401), the rocking member (31) is driven to swing; and A supporting mechanism (50) is assembled on the side wall of the casing (20), and the transmission mechanism (40) is supported by the supporting mechanism (50) when rotating. The power torque wrench with a supporting mechanism as claimed in claim 1, wherein the casing (20) further comprises two screws (20A), the two screws (20A) being opposite to each other and facing the second casing (22) ) The front end is locked with the first shell (21) near the neck (212), the swinging direction of the rocking member (31) intersects with the locking direction of the two screws (20A), and the rocking member (31) is vertical A swinging direction is defined on the axis of rotation of the rotating member (32), and the screw (20A) is parallel to the axis of rotation of the rotating member (32) to define a locking direction. The power torque wrench with a support mechanism according to claim 1, wherein the rocking member (31) is formed with a first assembly hole (311) and a second assembly hole (312), the first assembly hole (311) ) to assemble a drive sleeve (313), the rotating member (32) is rotatably assembled in the second assembly hole (312), and the rocking member (31) swings as the drive sleeve (313) moves , the rotating member (32) rotates clockwise or counterclockwise as the rocking member (31) swings, the rotating member (32) is further assembled with a quick release group (33), and the rotating member (32) is exposed to the One end of the two lugs (213) is formed with a driving head (321), the rotating member (32) is formed with a through hole (322) in the axial direction, the through hole (322) penetrates the driving head (321), and the through hole ( 322) A first blocking portion (3221) is formed on the inner side wall surface of the driving head (321), and a clamping hole (323) is radially formed on the driving head (321), the through hole (322) and the clamping hole (323) communicated with each other, the through hole (322) assembles the quick release group (33), the quick release group (33) comprises a control rod (331), a limiting piece (332), an elastic body (333) and a positioning body (334), a second blocking portion (3311) is formed on the outer sidewall surface of the middle section of the control rod (331), and a displacement hole (3312) is radially formed on the control rod (331) close to the second blocking portion (3311), The displacement hole (3312) is inserted by the limiting member (332), the control rod (331) is formed with a slot (3313) corresponding to the locking hole (323), and the elastic body (333) is accommodated in the through hole (331). 322), the elastic body (333) is pierced by the control rod (331), the two ends of the elastic body (333) respectively bounce against the first and second blocking parts (3221, 3311), the positioning body (334) accommodated in the clamping hole (323), the positioning body (334) is pushed against by the control rod (331). The power torque wrench with a supporting mechanism according to claim 3, wherein an eccentric convex portion (441) is axially formed at the front end of the universal member (41), and the eccentric convex portion (441) can be eccentrically rotated and assembled on the On the drive shaft sleeve (313), the drive shaft sleeve (313) moves with the eccentric convex portion (441). The power torque wrench with a support mechanism according to claim 4, wherein the universal member (41) comprises: A driving shaft (42), the rear end of which extends axially with a recess (421), the recess (421) is for the front end of the first transmission rod (401) to be inserted into, the universal member (41) further comprises a shaft pin (45) ), the shaft pin (45) is radially inserted into the two opposite side walls of the recess (421) and the front end of the first transmission rod (401), and the front end of the driving shaft (42) extends axially with two lugs (422); A driven shaft (44), the front end of which is axially formed with the eccentric convex portion (441), the rear end of the driven shaft (44) is axially extended with two lugs (442), the driven shaft (44) is at the eccentric A bearing (443) is sleeved on the outer side wall surface between the protruding portion (441) and the two lugs (442), and the bearing (443) is rotatably assembled to the neck portion (212) of the first shell (21) on the inner side wall; and A bushing (43), the front and rear ends of which are at any two opposite side walls at a difference of 90 degrees with the two lugs (422) of the driving shaft (42) and the two protrusions of the driven shaft (44) respectively The ear (442) is pivotally connected through the shaft pin (45). The power torque wrench with a support mechanism according to claim 1, wherein a recess (4011) extends axially from the rear end of the first transmission rod (401), and the recess (4011) is used for the second transmission rod (402). ) is inserted at the front end, the housing (20) further comprises a shaft pin (40A) radially inserted into the two opposite side walls of the recess (4011) and the front end of the second transmission rod (402). The power torque wrench with a support mechanism according to claim 1, wherein the support mechanism (50) comprises: A second stopper (51), the second stopper (51) is detachably assembled on the side walls of the first and second shells (21, 22), and a stopper surface (511) is formed at one end of the second stopper (51) ); a bearing (52), the bearing (52) is sleeved on the transmission mechanism (40), the bearing (52) is supported by the blocking surface (511) of the second blocking member (51); and A plurality of screws (53) are locked on the side wall of the second stopper (51) from the outside of the casing (20) relative to the second casing (22) and the first casing (21). The power torque wrench with a supporting mechanism according to claim 7, wherein the bearing (52) is sleeved on the front end of the first transmission rod (401) of the transmission mechanism (40), and the bearing (52) is close to the The first transmission rod (401) is assembled with the universal member (41). The power torque wrench with a support mechanism according to claim 7, wherein the bearing (52) is sleeved on the front end of the second transmission rod (402) of the transmission mechanism (40), and the bearing (52) is close to the Where the first and second transmission rods (401, 402) are assembled. The power torque wrench with a support mechanism as claimed in claim 1, wherein a torsion mechanism (60) is assembled at the rear end of the first shell (21), and the torsion mechanism (60) is supported by the second transmission rod (402) Through wearing, the torsion mechanism (60) is arranged in the second shell (22).

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