CN118357876A - Disassembling tool for air cylinder of diaphragm compressor - Google Patents

Abstract

The invention relates to the technical field of hand tools, and specifically discloses a disassembly tool for a diaphragm compressor cylinder, comprising: a disassembly tool for a diaphragm compressor cylinder, comprising a handle and a drive head, and also comprising: a connecting piece, one end of the handle is hinged on the connecting piece through a connecting shaft, a one-way gear is installed on the hinge shaft, a gear ring is coaxially installed on the drive head, and the gear ring is rotatably installed on the connecting piece; a speed change mechanism, the speed change mechanism comprises a reduction gear group and an acceleration gear group slidably installed on the connecting piece, the output ends of the reduction gear group and the acceleration gear group are both meshed with the gear ring, and a switching mechanism is installed on the connecting piece for controlling the one-way gear to mesh with the reduction gear group or the acceleration gear group; shaking the handle, the reduction gear group outputs a large torque to loosen the nut, and then the reduction gear group is disengaged from the meshing with the one-way gear, and the acceleration gear group is meshed with the one-way gear, so that the nut can be removed faster.

Description

A disassembly tool for a diaphragm compressor cylinder

Technical Field

The invention relates to the technical field of hand tools, and in particular to a disassembly tool for a diaphragm compressor cylinder.

Background technique

A diaphragm compressor is a positive displacement compressor that compresses and delivers gas by reciprocating the diaphragm in the cylinder. The main features of this compressor are large compression ratio, good sealing, and the compressed gas will not be contaminated by lubricating oil and other solid impurities. When the diaphragm inside the cylinder of the diaphragm compressor fails, it is necessary to remove the nut on the screw at the top of the cylinder, and then open the cylinder to replace the diaphragm.

A Chinese patent document with authorization announcement number CN106181836B discloses a wrench for turning a nut, comprising a handle and a driving head, driving one of a torque and a torque in a second direction, the second component being stationary relative to the first component to output the torque; a one-way transmission mechanism is installed on the driving head, the one-way transmission mechanism comprising a roller, a first component and a second component at least partially sleeved in the first component; the first component is fixedly arranged on the turning part of the wrench, the second component is used to cooperate with a workpiece, the direction of the torque from the turning part is a first direction and a second direction along the rotation axis of the first component; for the first direction, the torque is output to the workpiece; for the other one, the second component rotates relative to the first component without outputting the torque to the workpiece.

Although the wrench mentioned in the above document can remove the nut, during the process of removing the nut, a large force is required to start turning the nut to rotate, and then the nut can be turned with a smaller force. Therefore, it is more laborious when the nut is first turned, and it takes too long to completely remove the nut after it is loosened. Therefore, the existing wrench cannot adjust the torque coefficient and transmission coefficient between the input and output in the previous and next stages of removing the nut, so it is inconvenient to remove the nut.

Summary of the invention

The present invention provides a disassembly tool for a diaphragm compressor cylinder, aiming to solve the problem in the related art that a wrench cannot adjust the torque coefficient and transmission coefficient between input and output in the front and rear stages when disassembling a nut.

A disassembly tool for a diaphragm compressor cylinder, comprising a handle and a drive head, and further comprising:

A connecting piece, one end of the handle is hinged on the connecting piece through a connecting shaft, a one-way gear is installed on the hinge shaft, a gear ring is coaxially installed on the driving head, and the gear ring is rotatably installed on the connecting piece;

The speed change mechanism comprises a reduction gear set and an acceleration gear set slidably mounted on the connecting member, and the output ends of the reduction gear set and the acceleration gear set are both meshed with the ring gear;

A switching mechanism is installed on the connecting member and is used to control the meshing of the one-way gear with the reduction gear set or the acceleration gear set. The switching mechanism includes a pushing assembly and a connecting rod 1. The connecting rod 1 is slidably installed on the connecting member and is used to connect the reduction gear set and the acceleration gear set so that the two always maintain the same spacing. When the reduction gear set is running, the pushing assembly pushes the connecting rod 1 to move so that the reduction gear set is disengaged from the meshing with the one-way gear, and the acceleration gear set is engaged with the one-way gear.

Two support members are mounted on the connecting member and respectively abut against adjacent nuts/screws on both sides of the nut to be removed.

The effect is: the two support members respectively press against the adjacent nuts/screws on both sides of the nut to be removed, and then the handle is shaken back and forth. The one-way gear on the handle can only rotate when the handle is swung counterclockwise. When the nut starts to be tightened, the one-way gear is meshed with the input end of the reduction gear set, so that the reduction gear set outputs a larger torque to loosen the nut. When the nut is loosened, the push connecting rod 1 in the push assembly disengages the reduction gear set from the meshing with the one-way gear, accelerating the meshing of the gear set with the one-way gear, thereby accelerating the rotation speed of the gear ring when the handle is swung at the same frequency, so that the nut can be removed faster.

Preferably, at least two sliders are provided on the connecting rod one, and an arc-shaped groove which is adapted to the slider and coaxial with the ring gear is opened on the connecting member. The effect is that when the movement of the connecting rod one is restricted by the arc-shaped groove and the slider, the two ends of the connecting rod one always maintain a predetermined distance from the ring gear, so that the output ends of the reduction gear set and the acceleration gear set are always engaged with the ring gear.

Preferably, the pushing assembly includes a spring push rod and an arc-shaped rack, the two ends of the spring push rod are respectively hinged to the connecting piece and the connecting rod, and the reduction gear group includes a double gear one, and a small gear meshing with the arc-shaped rack is coaxially fixedly mounted on the double gear one, the effect of which is that when the double gear one rotates, the small gear moves along the arc-shaped rack with the double gear one, so that when the nut is loosened, the double gear one disengages from the meshing with the one-way gear.

Preferably, one end of the spring push rod is connected to a lever for resetting the spring push rod.

Preferably, one end of the two supporting members are respectively hinged on both sides of the connecting member, and a connecting rod 2 is hinged on the two supporting members. The other ends of the two connecting rods 2 are hinged to the same adjustment block, and the adjustment block is slidably installed on the connecting member, and a fixing mechanism for fixing the position of the adjustment block is installed on the connecting member.

Preferably, the fixing mechanism includes an adjusting bolt threadedly connected to the adjusting block, and a row of clamping holes are provided on the connecting piece at positions corresponding to the adjusting bolts. After the bottom ends of the adjusting bolts enter the clamping holes, the adjusting block is prevented from sliding along the connecting piece. The effect is that the angle of the supporting piece is changed by sliding the adjusting block, so that the supporting piece is pressed against the nut/stud on the side, and then the adjusting bolt is rotated to be inserted into the clamping hole, so that the adjusting block is fixed on the connecting piece.

Preferably, hinged columns are fixedly provided at both ends of the connecting member, and a through hole matched with the hinged column is provided at one end of the supporting member. The hinged column is rotatably and slidably connected to the through hole, and a spring is connected between the hinged column and the supporting member, so that when the nut is tightened, the supporting member that is against the nut/screw does not rise, and the rising of the connecting member causes the hinged column to slide upward relative to the supporting member. When the handle is shaken in the opposite direction to reset, the supporting member no longer presses against the nut/screw, and the spring releases elastic potential energy to pull the supporting member up, thereby reducing the resistance encountered when tightening the nut.

Preferably, the drive head is detachably connected to the gear ring for replacing drive heads of different specifications, which has the effect that when screwing nuts of different specifications, a suitable drive head can be replaced for use.

The beneficial effects of the present invention are:

The support member presses against the adjacent nuts/screws on both sides of the nut to be removed, thereby providing support for the connector, and then the handle is shaken back and forth to make the reduction gear set output a larger torque to loosen the nut. When the nut is loosened, the reduction gear set disengages from the one-way gear, and the acceleration gear set engages with the one-way gear, thereby increasing the rotation speed of the gear ring while swinging the handle at the same frequency, so that the nut can be removed faster.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the present invention when in use.

FIG. 2 is a schematic structural diagram of the bottom of the present invention.

FIG3 is a schematic structural diagram of the present invention.

FIG. 4 is a schematic diagram of the structure of the present invention without the connecting piece.

FIG. 5 is a schematic structural diagram of the bottom of the present invention after removing the connecting piece.

FIG. 6 is a schematic diagram of the structure of the pushing assembly in the present invention.

FIG. 7 is a schematic diagram showing the position of the spring push rod in the present invention.

Reference numerals:

1. Handle; 11. One-way gear; 2. Drive head; 21. Ring gear; 3. Connector; 31. Arc slide; 32. Spring; 33. Articulated column; 4. Speed change mechanism; 41. Reduction gear set; 411. Pinion; 42. Acceleration gear set; 5. Switching mechanism; 51. Pushing assembly; 511. Spring push rod; 5111. Push rod; 512. Arc rack; 52. Connecting rod one; 521. Sliding block; 6. Support; 61. Connecting rod two; 62. Adjustment block; 63. Adjustment bolt.

Detailed ways

Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

As shown in FIGS. 1 to 7 , a disassembly tool for a diaphragm compressor cylinder includes:

A handle 1, a drive head 2 and a connecting piece 3, one end of the handle 1 is hinged to the connecting piece 3 through a connecting shaft, a one-way gear 11 is installed on the hinge shaft, a gear ring 21 is coaxially and detachably installed on the drive head 2, and the gear ring 21 is rotatably installed on the connecting piece 3;

The speed change mechanism 4 comprises a reduction gear set 41 and an acceleration gear set 42 mounted on the connecting member 3. The reduction gear set 41 and the acceleration gear set 42 are respectively a double gear one and a double gear two. The double gear one, the one-way gear 11 and the double gear two are arranged counterclockwise along the gear ring 21. Two arc-shaped mounting grooves are provided on the connecting member 3. The shafts at the top ends of the double gear one and the double gear two are respectively slidably mounted in the two arc-shaped mounting grooves, so that the double gear one and the double gear two can move around the axis of the driving head 2. The smaller gear in the double gear one is meshed with the gear ring 21, and the larger gear therein can be meshed with the one-way gear 11. The larger gear in the double gear two is meshed with the gear ring 21, and the smaller gear therein can be meshed with the one-way gear 11. The one-way gear 11 cannot be meshed with the double gear one and the double gear two at the same time.

The switching mechanism 5 includes an arc-shaped rack 512, a spring push rod 511 and a connecting rod 1 52 fixedly installed in the connecting member 3. The arc-shaped rack 512 and the spring push rod 511 constitute a pushing assembly 51 for pushing the connecting rod 1 52. The two ends of the connecting rod 1 52 are respectively rotatably connected to the double gear 1 and the double gear 2, so that the double gear 1 and the double gear 2 always maintain the same spacing. Two sliders 521 are arranged on the connecting member 3. An arc-shaped slide groove 31 adapted to the slider 521 and coaxial with the gear ring 21 is opened on the connecting member 3, so that the double gear 1 and the double gear 2 are always meshed with the gear ring 21. The two ends of the spring push rod 511 are respectively hinged to the connecting member 3 and the connecting rod 1 52. A pinion 4 meshing with the arc-shaped rack 512 is coaxially fixedly installed on the double gear 1. 11. The diameters of the two gears in the double gear one are larger than the diameter of the pinion 411. When the handle 1 is shaken to make the one-way gear 11 drive the double gear one to rotate, the gear ring 21 and the driving head 2 rotate, and at the same time, the pinion 411 moves along the arc-shaped rack 512 in the direction away from the one-way gear 11. At the same time, the double gear one moves with the connecting rod 1 52, and the slider 521 slides in the arc-shaped slot 31. When the slider 521 passes the middle of the arc-shaped slot 31, the spring push rod 511 releases the elastic potential energy to make the slider 521 slide to the end of the arc-shaped slot 31, and the pinion 411 is disengaged from the arc-shaped rack 512, and the double gear two is meshed with the one-way gear 11. After use, the double gear one is meshed with the one-way gear 11 again by toggling the lever 5111 at one end of the spring push rod 511.

Two support members 6, both ends of the connecting member 3 are fixedly provided with hinged columns 33, one end of the support member 6 is provided with a through hole adapted to the hinged column 33, the hinged column 33 is rotatably and slidably connected to the through hole, a spring 32 is connected between the hinged column 33 and the support member 6, the two support members 6 are hinged with a connecting rod 2 61, the other ends of the two connecting rods 2 61 are hinged with the same adjusting block 62, the adjusting block 62 is slidably installed on the connecting member 3, a fixing mechanism for fixing the position of the adjusting block 62 is installed on the connecting member 3, the fixing mechanism includes an adjusting bolt 63 threadedly connected to the adjusting block 62, a row of card holes are provided on the connecting member 3 at the position corresponding to the adjusting bolt 63, and the adjusting bolt After the bottom end of 63 enters the card hole, it prevents the adjustment block 62 from sliding along the connecting member 3. The expansion angle of the two support members 6 is adjusted by adjusting the position of the adjustment block 62, so that the two support members 6 respectively press against the adjacent nuts/screws on both sides of the disassembled nut. Since the nut will rise when the driving head 2 drives the nut to rotate, and one of the support members 6 presses against the adjacent nut/screw, in order to reduce the resistance when tightening the nut, when tightening the nut, the support member 6 that presses against the nut/screw does not rise, and the connecting member 3 rises to make the hinge column 33 slide upward relative to the support member 6. When the handle 1 is shaken in the opposite direction to reset, the support member 6 no longer presses against the nut/screw, and the spring 32 releases its elastic potential energy to pull the support member 6 up.

Working principle: The unfolding angle of the two support members 6 is adjusted by adjusting the position of the adjustment block 62, so that the two support members 6 respectively press against the adjacent nuts/screws on both sides of the nut to be disassembled, and then the handle 1 is turned counterclockwise, and the one-way gear 11 rotates with the handle 1, driving the double gear 1 to rotate, so that the gear ring 21 and the drive head 2 rotate to loosen the nut with a larger torque, and at the same time, the small gear 411 moves along the arc-shaped rack 512 in the direction away from the one-way gear 11, so that the double gear 1 simultaneously drives the connected gear 21 and the drive head 2 to rotate. When the slider 521 passes the middle of the arc groove 31, the spring push rod 511 releases its elastic potential energy to make the slider 521 slide to the end of the arc groove 31, and the pinion 411 is disengaged from the arc rack 512. The double gear 2 is engaged with the one-way gear 11, thereby increasing the speed of tightening the nut with a higher transmission ratio. After use, the double gear 1 is re-engaged with the one-way gear 11 by moving the lever 5111 at one end of the spring push rod 511.

Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims (8)

1. A disassembly tool for a diaphragm compressor cylinder, comprising a handle (1) and a drive head (2), characterized in that it also comprises: A connecting member (3), one end of the handle (1) is hinged on the connecting member (3) via a connecting shaft, a one-way gear (11) is mounted on the hinge shaft, a gear ring (21) is coaxially mounted on the driving head (2), and the gear ring (21) is rotatably mounted on the connecting member (3); A speed change mechanism (4), the speed change mechanism (4) comprising a reduction gear set (41) and an acceleration gear set (42) slidably mounted on the connecting member (3), wherein output ends of the reduction gear set (41) and the acceleration gear set (42) are both meshed with the ring gear (21); A switching mechanism (5) is mounted on the connecting member (3) and is used to control the meshing of the one-way gear (11) with the reduction gear set (41) or the acceleration gear set (42). The switching mechanism (5) comprises a pushing assembly (51) and a connecting rod (52). The connecting rod (52) is slidably mounted on the connecting member (3) and is used to connect the reduction gear set (41) and the acceleration gear set (42) so that the two always maintain the same spacing. When the reduction gear set (41) is running, the pushing assembly (51) pushes the connecting rod (52) to move so that the reduction gear set (41) is disengaged from the meshing with the one-way gear (11) and the acceleration gear set (42) is meshed with the one-way gear (11). Two support members (6) are mounted on the connecting member (3) and respectively abut against adjacent nuts/screws on both sides of the nut to be removed. 2. The disassembly tool for the diaphragm compressor cylinder according to claim 1, characterized in that at least two sliders (521) are provided on the connecting rod (52), and an arc-shaped sliding groove (31) adapted to the slider (521) and coaxial with the ring gear (21) is provided on the connecting member (3). 3. The disassembly tool for the diaphragm compressor cylinder according to claim 2 is characterized in that the pushing assembly (51) includes a spring push rod (511) and an arc-shaped rack (512), the two ends of the spring push rod (511) are respectively hinged to the connecting piece (3) and the connecting rod 1 (52), and the reduction gear set (41) includes a double gear 1, and a small gear (411) meshing with the arc-shaped rack (512) is coaxially fixedly installed on the double gear 1. 4. The disassembly tool for the diaphragm compressor cylinder according to claim 3, characterized in that one end of the spring push rod (511) is connected to a lever (5111) for resetting it. 5. The disassembly tool for the diaphragm compressor cylinder according to claim 1 is characterized in that one end of the two support members (6) is hinged on both sides of the connecting member (3), and a connecting rod 2 (61) is hinged on the two support members (6). The other ends of the two connecting rods 2 (61) are hinged on the same adjustment block (62), and the adjustment block (62) is slidably installed on the connecting member (3), and a fixing mechanism for fixing the position of the adjustment block (62) is installed on the connecting member (3). 6. The disassembly tool for the diaphragm compressor cylinder according to claim 5 is characterized in that the fixing mechanism includes an adjusting bolt (63) threadedly connected to the adjusting block (62), and a row of clamping holes are provided on the connecting member (3) at positions corresponding to the adjusting bolts (63), and the bottom ends of the adjusting bolts (63) enter the clamping holes to prevent the adjusting block (62) from sliding along the connecting member (3). 7. The disassembly tool for the diaphragm compressor cylinder according to claim 6 is characterized in that hinge columns (33) are fixedly provided at both ends of the connecting member (3), one end of the supporting member (6) is provided with a through hole adapted to the hinge column (33), the hinge column (33) is rotatably and slidably connected to the through hole, and a spring (32) is connected between the hinge column (33) and the supporting member (6). 8. The disassembly tool for a diaphragm compressor cylinder according to any one of claims 1 to 7, characterized in that the drive head (2) and the gear ring (21) are detachably connected to each other for replacing drive heads (2) of different specifications.