CN109163007B - Stress-adjustable angle tension buffer for body-building equipment - Google Patents
Stress-adjustable angle tension buffer for body-building equipment Download PDFInfo
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- CN109163007B CN109163007B CN201810921378.3A CN201810921378A CN109163007B CN 109163007 B CN109163007 B CN 109163007B CN 201810921378 A CN201810921378 A CN 201810921378A CN 109163007 B CN109163007 B CN 109163007B
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- 238000013017 mechanical damping Methods 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 230000006698 induction Effects 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000011888 foil Substances 0.000 abstract description 4
- 238000002788 crimping Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/10—Arrangements for locking
- F16C11/103—Arrangements for locking frictionally clamped
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2316/00—Apparatus in health or amusement
- F16C2316/30—Articles for sports, games and amusement, e.g. roller skates, toys
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Transmission Devices (AREA)
Abstract
The utility model provides an angle ware that relaxes with adjustable atress for body-building equipment, including casing and swinging boom, swinging boom one end passes through hinge assembly rotation to be connected the left end at the casing, mechanical damping subassembly, linear drive ware and control room have been set gradually from left to right in the casing, linear drive ware's drive end passes through mechanical damping subassembly and hinge assembly crimping cooperation, control circuit module has been set gradually from left to right in the control room, battery and control key module, be provided with the foil gage sensor in the adjacent hinge assembly department on the swinging boom, control key module, foil gage sensor and linear drive ware are connected with control circuit module through the data line respectively, the battery passes through the electric wire and is connected with control circuit module. The invention has reasonable design, compact structure, light weight, small volume, and good operability, and the rotating arm can be reset slowly after rotating to a certain angle, and has strong safety and reliability and large force adjustable range.
Description
Technical Field
The invention belongs to the technical field of indoor body-building equipment, and particularly relates to a stress-adjustable angle buffer for body-building equipment.
Background
Along with the improvement of the living standard of people and the popularization of the body-building exercises of the whole people, more and more people exercise the body through professional body-building meetings. Traditional large-scale strength type body-building apparatuses, such as thigh body-building apparatuses or upper limb body-building apparatuses (chest clamping or chest expanding functional apparatuses), are provided with a plurality of oil cylinders, air cylinders or balancing weights to regulate and control the resistance, but have the following defects: the device has the advantages of large volume, heavy weight, limited adjustable range and poor safety (when the device is suddenly released from the middle, the device can be reset suddenly to easily hurt an exerciser), and a user cannot properly adjust damping according to personal conditions due to different physical abilities of the user.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides the stress-adjustable angle buffer for the body-building equipment, which has the advantages of light weight, small volume, large adjustable range and strong safety and reliability.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides an angle ware that retards with adjustable be used for body-building equipment's atress, including casing and swinging boom, swinging boom one end is rotated through hinge subassembly and is connected the left end at the casing, mechanical damping subassembly has been set gradually from left to right in the casing, linear drive ware and control room, linear drive ware's drive end passes through mechanical damping subassembly and hinge subassembly crimping cooperation, control circuit module has been set gradually from left to right in the control room, battery and control key module, casing right-hand member portion is provided with the control panel that corresponds with the control key module, be provided with the foil gage sensor in the adjacent hinge subassembly department on the swinging boom, control key module, foil gage sensor and linear drive ware are connected with control circuit module through the data line respectively, the battery passes through the electric wire and is connected with control circuit module.
The hinge assembly comprises a rotating shaft, a positioning shaft sleeve, a sliding bearing, a connecting plate and a positioning ring plate, wherein the rotating shaft is provided with one positioning shaft sleeve, the sliding bearing, the connecting plate and the positioning ring plate are respectively arranged in two, the rotating arm comprises a front side plate, a rear side plate and a top plate, the front side edge and the rear side edge of the top plate are respectively and fixedly connected with the upper side edges of the front side plate and the rear side plate, and the front side plate and the rear side plate are respectively positioned on the front side of the front side wall and the rear side of the rear side wall of the shell;
the two positioning shaft sleeves are respectively and fixedly arranged on the rear side face of the front side plate and the front side face of the rear side plate, the two sliding bearings are respectively arranged on the front side wall and the rear side wall of the shell, the two sliding bearings and the two positioning shaft sleeves are provided with the same central line, the rotating shaft penetrates through the two sliding bearings and the two positioning shaft sleeves, the two positioning ring plates are sleeved at the front end and the rear end of the rotating shaft and are connected with the rotating shaft through flat keys, the positioning ring plate at the front side, the front side plate and the positioning shaft sleeve at the front side are provided with a plurality of front connecting holes along the circumferential direction, the positioning ring plate at the rear side, the rear side plate and the positioning shaft sleeve at the rear side are provided with a plurality of rear connecting holes along the circumferential direction, positioning pins are inserted into the front connecting holes and the rear connecting holes, the front ends of the positioning pins at the front side are fixedly connected with the rear side face of a connecting plate, and the rear ends of the positioning pins at the rear side are fixedly connected with the front side face of the connecting plate, and the locking cover for covering the connecting plate and the positioning ring plate is arranged at the outer side of each connecting plate.
The connecting plate and the positioning ring plate are disc-shaped structures, the center of the connecting plate is provided with a through hole, the two end parts of the rotating shaft are provided with threaded holes, the inner end surface of the locking cover is fixedly provided with a stud, the stud penetrates through the through hole on the connecting plate to be in threaded connection with the threaded holes at the two end parts of the rotating shaft, and the locking cover compresses the connecting plate and the positioning ring plate.
The mechanical damping assembly comprises an eccentric wheel, a wedge block and a supporting slide plate, wherein the supporting slide plate is fixedly arranged at the bottom of the casing, an eccentric hole is formed in the eccentric wheel, a plane groove is milled in the middle of the rotating shaft, a screw hole is formed in the eccentric wheel along the radial direction, the inner end of the screw hole is communicated with the eccentric hole, the rotating shaft penetrates through the eccentric hole, a compression bolt is connected in the screw hole in a threaded manner, the inner end of the compression bolt is in jacking fit with the bottom of the plane groove, the center line of the eccentric hole is parallel to the center line of the eccentric wheel, the center line of the compression bolt is vertically crossed with the center line of the eccentric hole and the center line of the eccentric wheel, the plane of the wedge block is arranged on the supporting slide plate in a sliding manner along the left-right direction, the inclined plane of the wedge block is in jacking contact with the outer circumferential surface of the eccentric wheel, and the right end of the wedge block is connected with the driving end of the linear driver; and in the state that the rotating arm is not stressed, the central line of the compression bolt is perpendicular to the inclined plane of the wedge-shaped block.
The strain gauge sensor is stuck on the inner wall of the top plate, and the front side plate and the rear side plate of the rotating arm are respectively provided with a notch for improving stress induction at the front side and the rear side of the strain gauge sensor.
By adopting the technical scheme, the working principle of the invention is as follows: and when the output signal intensity of the strain gauge sensor is greater than a set threshold value (namely the strain gauge sensor deformation is greater than the threshold value), the control circuit module controls the linear driver to move, and the linear driver adopts an electric push rod as a general scheme. The wedge block connected with the club head of the electric push rod moves rightwards, and the electric push rod contracts. Because the rotating shaft connected with the rotating arm and the eccentric wheel always squeeze the wedge block under the action of the force of the rotating arm, when the wedge block moves, the eccentric wheel can rotate, so that the opening angle of the rotating arm is changed; when the output signal intensity of the strain gauge sensor is not greater than a set threshold (namely the deformation of the strain gauge sensor is not greater than the threshold), the control circuit module controls the linear driver to move, and the wedge block connected with the rod head of the electric push rod moves leftwards along the extending direction of the push rod. Until the wedge blocks squeeze the eccentric wheel, the electric push rod stops. At this time, the opening angle of the rotating arm can be locked by the wedge block and can not be opened. The mechanism which uses the wedge block to match with the eccentric wheel mainly applies the force on the driving rotating arm to the sliding plate and the casing, and only a small force in the horizontal direction can push the wedge block to move, so that the wedge block can be prevented from moving only by a small power, and the rotating arm position can be locked in a single direction. The movement speed of the linear driver can be flexibly adjusted by the control circuit module, so that the angular speed of opening the rotating arm is changed; the linear drive is powered by a battery and the design volume can be small.
Because the central line of the compression bolt is perpendicular to the central line of the eccentric hole and the central line of the eccentric wheel, the central line of the compression bolt is perpendicular to the inclined plane of the wedge-shaped block in the state that the rotating arm is not stressed, and thus the exercise mode of pulling the rotating arm can be changed into a mode of pushing the rotating arm to exercise. If the rotating arm needs to be pushed rightward, the locking cover can be unscrewed, the connecting plate and the locating pin are taken down, the locating ring plate is taken down, the compression bolt is unscrewed, the rotating shaft is pulled out, after the rotating arm is taken down, the right end of the rotating arm faces leftward, and then the locating ring plate, the connecting plate, the locating pin and the locking cover are screwed up, namely, the rotating shaft is connected to the rotating shaft after the direction of replacement. Thus, the rotating arm can be pushed leftwards to perform pushing exercise.
The electric push rod may be replaced by other driving schemes such as a rack and pinion driving mechanism, or a linear drive such as a pneumatic cylinder, a hydraulic cylinder, etc.
The rotary shaft, the eccentric wheel, the positioning ring plate, the connecting plate and the positioning pin are arranged into a split structure, so that the rotary shaft is convenient to manufacture, mount and dismount, the positioning pin plays a role in transmitting torque of the positioning ring plate and the positioning shaft sleeve rotating piece, and the positioning shaft sleeve plays a role in enhancing the strength of the front side plate and the rear side plate of the rotary arm. The connecting plate plays a role in simultaneously disassembling and inserting the locating pin, and the disassembly and assembly efficiency is improved. The locking cover plays a role in limiting the connecting plate and the locating pin, and ensures the reliability of torque transmission.
The front side plate and the rear side plate of the rotating arm are provided with notches for improving stress induction at the front side and the rear side of the strain gauge sensor, namely the rotating arm is most sensitive to the stress induction at the section where the notches are located, so that the strain gauge sensor is arranged at the notches and the effect of the stress induction can be fully improved.
The support slide plate plays a role of supporting the wedge block and provides a plane for the wedge block to move left and right.
In conclusion, the invention has reasonable design, compact structure, light weight and small volume, and the rotating arm can be reset slowly after rotating to a certain angle, so that the invention has strong safety and reliability, large force adjustable range and good operability.
Drawings
FIG. 1 is a schematic diagram of the external configuration of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an exploded view of the present invention;
fig. 4 is a schematic view of the rotary arm in the present invention in a state rotated by 90 °;
fig. 5 is a schematic view of a control panel.
Detailed Description
As shown in fig. 1-4, the stress-adjustable angle buffer for body-building equipment comprises a machine shell 1 and a rotating arm 2, wherein one end of the rotating arm 2 is rotatably connected to the left end part of the machine shell 1 through a hinge assembly, a mechanical damping assembly, a linear driver 3 and a control chamber 4 are sequentially arranged in the machine shell 1 from left to right, the driving end of the linear driver 3 is in press fit with the hinge assembly through the mechanical damping assembly, a control circuit module 5, a battery 6 and a control key module 7 are sequentially arranged in the control chamber 4 from left to right, a control panel 8 corresponding to the control key module 7 is arranged at the right end part of the machine shell 1, a strain gauge sensor 9 is arranged on the rotating arm 2 adjacent to the hinge assembly, the control key module 7, the strain gauge sensor 9 and the linear driver 3 are respectively connected with the control circuit module 5 through data wires 10, and the battery 6 is connected with the control circuit module 5 through wires.
As shown in fig. 5, the control panel 8 is provided with a force value display 11, a force increasing key 12, a force decreasing key 13, a speed value display 14 (of a rotating arm), a speed increasing key 15, and a speed decreasing key 16.
The hinge assembly comprises a rotating shaft 17, a positioning shaft sleeve 18, a sliding bearing 19, a connecting plate 20 and a positioning ring plate 21, wherein one rotating shaft 17 is arranged, the two positioning shaft sleeves 18, the two sliding bearings 19, the two connecting plates 20 and the two positioning ring plates 21 are respectively arranged, the rotating arm 2 comprises a front side plate 22, a rear side plate 23 and a top plate 24, the front side edge and the rear side edge of the top plate 24 are respectively fixedly connected with the upper side edges of the front side plate 22 and the rear side plate 23, and the front side plate 22 and the rear side plate 23 are respectively positioned on the front side of the front side wall and the rear side of the rear side wall of the casing 1;
The two positioning shaft sleeves 18 are respectively and fixedly arranged on the rear side surface of the front side plate 22 and the front side surface of the rear side plate 23, the two sliding bearings 19 are respectively arranged on the front side wall and the rear side wall of the casing 1, the two sliding bearings 19 and the two positioning shaft sleeves 18 are provided with the same center line, the rotating shaft 17 is arranged in the two sliding bearings 19 and the two positioning shaft sleeves 18 in a penetrating manner, the two positioning ring plates 21 are sleeved at the front end and the rear end of the rotating shaft 17 and are connected with the rotating shaft 17 through the flat key 25, the positioning ring plates 21 on the front side, the front side plate 22 and the positioning shaft sleeves 18 on the front side are provided with a plurality of front connecting holes 26 along the circumferential direction, the positioning ring plates 21 on the rear side, the rear side plate 23 and the positioning shaft sleeves 18 on the rear side are provided with a plurality of rear connecting holes 27 along the circumferential direction, the front connecting holes 26 and the rear connecting holes 27 are respectively inserted with positioning pins 28, the front ends of the plurality of the positioning pins 28 on the front side are fixedly connected with the rear side surface of one connecting plate 20, the rear ends of the positioning pins 28 on the rear side are fixedly connected with the front side surface of one connecting plate 20, and the outer side of each connecting plate 20 is provided with a positioning ring cover 21 and a locking cover 29.
The connecting plate 20 and the positioning ring plate 21 are of disc-shaped structures, a through hole is formed in the center of the connecting plate 20, threaded holes are formed in the two end portions of the rotating shaft 17, a stud 30 is fixedly arranged on the inner end face of the locking cover 29, the stud 30 penetrates through the through hole in the connecting plate 20 to be in threaded connection with the threaded holes in the two end portions of the rotating shaft 17, and the locking cover 29 compresses the connecting plate 20 and the positioning ring plate 21.
The mechanical damping assembly comprises an eccentric wheel 31, a wedge block 32 and a supporting sliding plate 33, wherein the supporting sliding plate 33 is fixedly arranged at the bottom of the inside of the shell 1, an eccentric hole 34 is formed in the eccentric wheel 31, a plane groove 37 is milled in the middle of a rotating shaft 17, a screw hole 35 is formed in the eccentric wheel 31 in the radial direction, the inner end of the screw hole 35 is communicated with the eccentric hole 34, the rotating shaft 17 passes through the eccentric hole 34, a compression bolt 36 is connected with the inner thread of the screw hole 35, the inner end of the compression bolt 36 is in pressing fit with the bottom of the plane groove 37, the center line of the eccentric hole 34 is parallel to the center line of the eccentric wheel 31, the center line of the compression bolt 36 is vertically crossed with the center line of the eccentric hole 34 and the center line of the eccentric wheel 31, the plane of the wedge block 32 is arranged on the supporting sliding plate 33 along the left-right direction, the inclined surface of the wedge block 32 is in pressing contact with the outer circumferential surface of the eccentric wheel 31, and the right end of the wedge block 32 is connected with the driving end of the linear driver 3; in the unstressed state of the swivel arm 2, the center line of the hold-down bolt 36 is perpendicular to the inclined surface of the wedge block 32.
The strain gauge sensor 9 is adhered to the inner wall of the top plate 24, and the front side plate 22 and the rear side plate 23 of the rotating arm 2 are provided with notches 38 for improving stress induction on the front side and the rear side of the strain gauge sensor 9.
The working principle of the invention is as follows: and applying power for driving the rotating arm 2 to rotate on the rotating arm 2, namely pulling the rotating arm 2 leftwards, wherein the power deforms the strain gauge sensor 9, the control circuit module 5 receives a signal deformed by the strain gauge sensor 9, and when the strength of the output signal of the strain gauge sensor 9 is larger than a set threshold (namely the deformation of the strain gauge sensor 9 is larger than the threshold), the control circuit module 5 controls the linear driver 3 to move, and the linear driver 3 adopts an electric push rod as a general scheme. The wedge 32 to which the head of the electric putter is connected moves rightward, and the electric putter contracts. Because the rotating shaft 17 and the eccentric wheel 31 connected with the rotating arm 2 always press the wedge block 32 under the action of the force exerted by the rotating arm 2, when the wedge block 32 moves, the eccentric wheel 31 can rotate, so that the opening angle of the rotating arm 2 is changed; when the output signal intensity of the strain gauge sensor 9 is not greater than a set threshold (i.e. the deformation of the strain gauge sensor 9 is not greater than the threshold), the control circuit module 5 controls the linear driver 3 to move, and the wedge block 32 connected with the rod head of the electric push rod moves leftwards along the extending direction of the push rod. Until the wedge 32 presses the eccentric 31, the electric putter stops. The opening angle of the rotating arm 2 is locked by the wedge block 32 and cannot be opened. The mechanism of the wedge block 32 and the eccentric wheel 31 is used for mainly applying the force on the driving rotating arm 2 to the sliding plate and the casing 1, and only a small horizontal force can push the wedge block 32 to move, so that the wedge block 32 can be prevented from moving only by a small power, and the rotating arm 2 can be locked in one direction. The movement speed of the linear driver 3 can be flexibly adjusted by the control circuit module 5, so that the opening angular speed of the rotating arm 2 is changed; the linear drive 3 is powered by a battery 6 and the design volume can be small. The arrow in fig. 4 points in the direction of rotation of the rotary arm 2.
Because the central lines of the compression bolts 36 are perpendicular to the central lines of the eccentric holes 34 and the central lines of the eccentric wheels 31, the central lines of the compression bolts 36 are perpendicular to the inclined surfaces of the wedge-shaped blocks 32 in the state that the rotating arm 2 is not stressed, so that the exercise mode of pulling the rotating arm 2 can be changed into the exercise mode of pushing the rotating arm 2. If the rotating arm 2 needs to be pushed rightward, the locking cover 29 can be unscrewed, the connecting plate 20 and the positioning pin 28 are removed, the positioning ring plate 21 is removed, the compression bolt 36 is unscrewed, the rotating shaft 17 is drawn out, after the rotating arm 2 is removed, the right end of the rotating arm 2 is turned leftward, and then the positioning ring plate 21, the connecting plate 20, the positioning pin 28 and the locking cover 29 are unscrewed, namely, the rotating shaft 17 is connected after the direction of replacement. This makes it possible to push the rotating arm 2 leftward for pushing exercise.
The electric push rod may be replaced by other driving schemes such as a rack and pinion driving mechanism, or a linear driver 3 such as a pneumatic cylinder, a hydraulic cylinder, or the like.
The invention sets the rotating shaft 17, the eccentric wheel 31, the positioning ring plate 21, the connecting plate 20 and the positioning pin 28 to be in a split structure, thus being convenient for manufacturing, mounting and dismounting, the positioning pin 28 plays a role in transmitting the torque of the rotating piece of the positioning ring plate 21 and the positioning shaft sleeve 18, and the positioning shaft sleeve 18 plays a role in enhancing the strength of the front side plate 22 and the rear side plate 23 of the rotating arm 2. The connecting plate 20 plays a role in simultaneously disassembling and inserting the positioning pin 28, and improves the disassembly and assembly efficiency. The locking cap 29 serves to define the connection plate 20 and the positioning pin 28, ensuring the reliability of torque transmission.
The front side plate 22 and the rear side plate 23 of the rotating arm 2 are provided with notches 38 for improving stress induction at the front side and the rear side of the strain gauge sensor 9, namely, the rotating arm 2 is most sensitive to stress induction at the section where the notches 38 are located, so that the strain gauge sensor 9 is arranged at the notches 38 to fully improve the effect of stress induction.
The support slide 33 serves to support the wedge block 32 and provide a plane in which the wedge block 32 moves left and right.
The present embodiment is not limited in any way by the shape, material, structure, etc. of the present invention, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present invention are all included in the scope of protection of the technical solution of the present invention.
Claims (2)
1. A angle ware that opens slowly with adjustable be used for body-building apparatus's atress, its characterized in that: the device comprises a shell and a rotating arm, wherein one end of the rotating arm is rotationally connected to the left end part of the shell through a hinge assembly, a mechanical damping assembly, a linear driver and a control chamber are sequentially arranged in the shell from left to right, the driving end of the linear driver is in press fit with the hinge assembly through the mechanical damping assembly, a control circuit module, a battery and a control key module are sequentially arranged in the control chamber from left to right, a control panel corresponding to the control key module is arranged at the right end part of the shell, a strain gauge sensor is arranged on the rotating arm adjacent to the hinge assembly, the control key module, the strain gauge sensor and the linear driver are respectively connected with the control circuit module through data wires, and the battery is connected with the control circuit module through wires;
the hinge assembly comprises a rotating shaft, a positioning shaft sleeve, a sliding bearing, a connecting plate and a positioning ring plate, wherein the rotating shaft is provided with one positioning shaft sleeve, the sliding bearing, the connecting plate and the positioning ring plate are respectively arranged in two, the rotating arm comprises a front side plate, a rear side plate and a top plate, the front side edge and the rear side edge of the top plate are respectively and fixedly connected with the upper side edges of the front side plate and the rear side plate, and the front side plate and the rear side plate are respectively positioned on the front side of the front side wall and the rear side of the rear side wall of the shell;
The two positioning shaft sleeves are respectively and fixedly arranged on the rear side surface of the front side plate and the front side surface of the rear side plate, the two sliding bearings are respectively arranged on the front side wall and the rear side wall of the shell, the two sliding bearings and the two positioning shaft sleeves are provided with the same central line, the rotating shaft is arranged in the two sliding bearings and the two positioning shaft sleeves in a penetrating manner, the two positioning ring plates are sleeved at the front end and the rear end of the rotating shaft and are connected with the rotating shaft through flat keys, a plurality of front connecting holes are formed in the front positioning ring plate, the front side plate and the front positioning shaft sleeve along the circumferential direction, a plurality of rear connecting holes are formed in the positioning ring plate, the rear side plate and the rear positioning shaft sleeve along the circumferential direction, positioning pins are inserted into the front connecting holes and the rear connecting holes, the front ends of the positioning pins on the front side are fixedly connected with the rear side surface of a connecting plate, and the rear ends of the positioning pins on the rear side are fixedly connected with the front side surface of the connecting plate, and a locking cover for covering the connecting plate and the positioning ring plate is arranged on the outer side of each connecting plate;
The mechanical damping assembly comprises an eccentric wheel, a wedge block and a supporting slide plate, wherein the supporting slide plate is fixedly arranged at the bottom of the casing, an eccentric hole is formed in the eccentric wheel, a plane groove is milled in the middle of the rotating shaft, a screw hole is formed in the eccentric wheel along the radial direction, the inner end of the screw hole is communicated with the eccentric hole, the rotating shaft penetrates through the eccentric hole, a compression bolt is connected in the screw hole in a threaded manner, the inner end of the compression bolt is in jacking fit with the bottom of the plane groove, the center line of the eccentric hole is parallel to the center line of the eccentric wheel, the center line of the compression bolt is vertically crossed with the center line of the eccentric hole and the center line of the eccentric wheel, the plane of the wedge block is arranged on the supporting slide plate in a sliding manner along the left-right direction, the inclined plane of the wedge block is in jacking contact with the outer circumferential surface of the eccentric wheel, and the right end of the wedge block is connected with the driving end of the linear driver; in the state that the rotating arm is not stressed, the central line of the compression bolt is perpendicular to the inclined plane of the wedge-shaped block;
the connecting plate and the positioning ring plate are disc-shaped structures, the center of the connecting plate is provided with a through hole, the two end parts of the rotating shaft are provided with threaded holes, the inner end surface of the locking cover is fixedly provided with a stud, the stud penetrates through the through hole on the connecting plate to be in threaded connection with the threaded holes at the two end parts of the rotating shaft, and the locking cover compresses the connecting plate and the positioning ring plate.
2. The adjustable force angle retarder for exercise equipment of claim 1, wherein: the strain gauge sensor is stuck on the inner wall of the top plate, and the front side plate and the rear side plate of the rotating arm are respectively provided with a notch for improving stress induction at the front side and the rear side of the strain gauge sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810921378.3A CN109163007B (en) | 2018-08-14 | 2018-08-14 | Stress-adjustable angle tension buffer for body-building equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810921378.3A CN109163007B (en) | 2018-08-14 | 2018-08-14 | Stress-adjustable angle tension buffer for body-building equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109163007A CN109163007A (en) | 2019-01-08 |
| CN109163007B true CN109163007B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810921378.3A Active CN109163007B (en) | 2018-08-14 | 2018-08-14 | Stress-adjustable angle tension buffer for body-building equipment |
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