CN214749501U - Pendulum impact testing machine that can separation and reunion - Google Patents
Pendulum impact testing machine that can separation and reunion Download PDFInfo
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- CN214749501U CN214749501U CN202121154586.9U CN202121154586U CN214749501U CN 214749501 U CN214749501 U CN 214749501U CN 202121154586 U CN202121154586 U CN 202121154586U CN 214749501 U CN214749501 U CN 214749501U
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- friction disc
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Abstract
The utility model discloses a pendulum impact tester that can separate and reunion, including frame, pendulum, motor, reduction gear to and clutch etc.. One end of the pendulum bob is connected with an output shaft of the motor and can rotate around the shaft in a controlled or free mode. The clutch device of the pendulum impact testing machine can enable the pendulum to be in transmission connection with or separated from the output shaft of the motor in the working process. The utility model discloses pendulum impact tester's measurement accuracy can be improved.
Description
Technical Field
The utility model relates to a material capability test impact test instrument technical field specifically is a pendulum impact tester that can separate and reunion.
Background
The pendulum impact tester is mainly used for measuring the impact resistance of materials, impacts a test piece by means of gravitational potential energy, and the difference of the gravitational potential energy is the fracture energy of the test piece, so that the pendulum impact tester is an important basis for material selection and structural design. Present pendulum impact tester type is various, and degree of automation is also more and more high, but all links to each other pendulum and motor shaft are fixed, through motor drive pendulum, at the in-process of pendulum whereabouts, the motor is in standby state, and the pendulum can drive motor output shaft and rotate, and electric motor rotor's coil can produce induced-current to produce opposite direction's electromagnetic force, and then produce the moment that hinders the rotation of motor output shaft. The resistance moment consumes a part of gravitational potential energy of the pendulum, so that the measurement accuracy of the fracture energy of the test piece is not high. Therefore, the conventional pendulum impact tester needs to check the scale after shipment, and this amount of energy is manually compensated. Based on this, the utility model provides a can improve pendulum impact tester's measurement accuracy's detachable pendulum impact tester.
SUMMERY OF THE UTILITY MODEL
In view of the technical problem who exists among the background art, the utility model provides a can improve pendulum impact tester measurement accuracy's detachable pendulum impact tester. In order to achieve the above object, the utility model provides a following technical scheme:
a clutchable pendulum impact tester comprises a rack, a pendulum and a motor, wherein one end of the pendulum is in transmission connection with an output shaft of the motor and is rotatably arranged above the rack; the pendulum bob can be in transmission connection or separation with an output shaft of the motor under the driving of the clutch device; the clutch device comprises a clutch shell, a driving friction disc, a driven friction disc, a jacking mechanism, an output shaft, a spring and a connecting key; the clutch shell is arranged on the outer side of the motor; the driving friction disc, the driven friction disc, the jacking mechanism, the spring and the connecting key are all arranged in the clutch shell; the driving friction disc consists of a driving wheel and a friction disc I, and the driving wheel is in transmission connection with the output shaft of the motor through a connecting key; the spring is connected with the output shaft of the motor and the driving wheel; the driven friction disc consists of a driven wheel and a friction disc II; one end of an output shaft of the clutch device is fixedly connected with one end of the pendulum bob, the other end of the output shaft of the clutch device extends into the clutch shell to be fixedly connected with the driven wheel, and the output shaft of the clutch device is connected with the clutch shell through a rotating bearing; and the friction disc I in the driving friction disc can be tightly attached to or separated from the friction disc II in the driven friction disc under the driving of the jacking mechanism.
A clamping groove is formed in the side wall of the driven wheel; the clutch shell is provided with an opening corresponding to the side wall of the driven wheel, and the opening is rotatably provided with a buckle matched with the clamping groove.
The jacking mechanism comprises a jacking piece; the jacking piece is rotatably arranged in the clutch shell, and the other end of the jacking piece can be abutted against the driving wheel; the driving wheel can enable a friction disc I in the driving friction disc and a friction disc II in the driven friction disc to be tightly attached or detached under the driving of the jacking piece.
The top tightening piece adopts a cam.
The clutch device further comprises a strut; the strut is arranged on the output shaft of the motor and extends into the clutch shell part; the spring is arranged in parallel with the output shaft of the motor, one end of the spring is fixedly connected with the driving wheel, and the other end of the spring is fixedly connected with the support.
The buckle is rotatably arranged at the opening of the clutch shell through a driving device.
The top member is rotatably arranged in the clutch housing through a driving device.
And an output shaft of the clutch device is connected with the clutch shell through two rotating bearings.
The utility model has the advantages that:
1. the utility model has the advantages that the clutch device is arranged, so that the pendulum bob can be in transmission connection or separation with the output shaft of the motor under the driving of the clutch device, the resistance brought by the motor is eliminated, and the precision of the test piece for measuring the fracture energy is improved;
2. the rotatable cam is arranged to control the clutch between the driving friction disc and the driven friction disc, so that the structure is simple and reliable, and the cost is low;
3. the cam rotates, and the driving friction disc is separated from the driven friction disc more quickly and effectively by utilizing the resetting and stretching of the spring.
Drawings
FIG. 1 is a schematic structural view of the pendulum impact tester of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is a schematic view of the internal structure of the clutch device of the present invention (the tightening mechanism is omitted);
FIG. 5 is a front view of FIG. 1;
FIG. 6 is a partial enlarged view of B in FIG. 5;
in the figure, 1-motor, 2-reducer, 3-clutch device, 3.1-spring, 3.2-driving wheel, 3.3-driven wheel, 3.4-friction disc I, 3.5-motor output shaft, 3.6-clutch device output shaft, 3.7-bearing, 3.8-clutch shell, 3.81-opening, 3.9-driving friction disc, 3.10-driven friction disc, 3.11-support, 3.12-friction disc II, 4-pendulum, 5-frame, 6-pendulum impact tester body, 7-tightening mechanism, 8-buckle, 9-cam and 10-support plate.
Detailed Description
Combine shown in fig. 1 to 6, a pendulum impact tester that can separate and reunion, including pendulum impact tester body 6, this pendulum impact tester body 6 includes frame 5, pendulum 4, motor 1 locates frame 5 upper end, motor 1 adopts gear motor (including motor and reduction gear 2), pendulum 4 one end links to each other with motor output shaft 3.5 transmission, rotationally locate frame 5 top, can be around motor output shaft controlled rotation or free rotation, pendulum impact tester still includes clutch 3, pendulum 4 can link to each other or separate with motor output shaft 3.5 transmission under clutch 3's drive.
The clutch device 3 comprises a clutch shell 3.8, a driving friction disc 3.9, a driven friction disc 3.10, a jacking mechanism 7, a clutch device output shaft 3.6, a spring 3.1 and a connecting key; the clutch housing 3.8 is arranged outside the motor 1 through a support plate 10 fixedly connected with the frame 5; the driving friction disc 3.9, the driven friction disc 3.10 and the tightening mechanism 7 are all arranged in the clutch shell 3.8; the driving friction disc 3.9 consists of a driving wheel 3.2 and a friction disc I3.4, the driving wheel 3.2 is in transmission connection with a motor output shaft 3.5 through a connecting key, and the driving wheel 3.2 can translate along the axial direction and also can rotate along with the motor output shaft 3.5; the driven friction disc 3.10 consists of a driven wheel 3.3 and a friction disc II 3.12; one end of an output shaft 3.6 of the clutch device is fixedly connected with one end of the pendulum bob 4, the other end of the output shaft extends into the clutch housing 3.8 to be fixedly connected with the driven wheel 3.3, and the output shaft 3.6 of the clutch device is rotationally connected with the clutch housing 3.8 through a rotating bearing 3.7; the friction disc I3.4 in the driving friction disc 3.9 can be tightly attached to or separated from the friction disc II 3.12 in the driven friction disc 3.10 under the driving of the tightening mechanism 7, the spring 3.1 is connected with the motor output shaft 3.5 and the driving wheel 3.2, and the driving friction disc 3.9 can be pulled back under the condition that the tightening mechanism 7 is reset.
A clamping groove (not shown in the figure) is arranged on the side wall of the driven wheel 3.3; as shown in fig. 6, the top of the clutch housing 3.8 is provided with an opening 3.81 corresponding to the slot on the side wall of the driven wheel 3.3, and the opening 3.81 is provided with a buckle 8 rotatably matched with the slot. Because can rotate from driving wheel 3.3, the draw-in groove then rotates, sets up great draw-in groove for after rotating, buckle 8 still can stretch into separation and reunion shell 3.8 opening 3.81 and draw-in groove looks adaptation and fixed slot, thereby fixed from driving wheel 3.3.
The jacking mechanism 7 comprises a jacking piece; the top tightening piece is rotatably arranged in the clutch housing 3.8, and the other end of the top tightening piece can be abutted against the driving wheel 3.2; the driving wheel 3.2 can make the friction discs I3.4 in the driving friction discs 3.9 tightly attached to or separated from the friction discs II 3.12 in the driven friction discs 3.10 under the driving of the jacking piece.
The urging member employs a cam 9.
The clutch device 3 also comprises a support 3.11, and the support 3.11 is arranged on the part of the motor output shaft 3.5 extending into the clutch shell 3.8; the spring 3.1 is horizontally arranged, one end of the spring is fixedly connected with the driving wheel 3.2, and the other end of the spring is fixedly connected with the support 3.11. When the cam 9 pushes the driving wheel 3.2 in the driving friction disc 3.9 to move rightwards, the spring 3.1 is stretched, so that the friction disc I3.4 in the driving friction disc 3.9 is tightly jointed with the friction disc II 3.12 in the driven friction disc 3.10. When the cam 9 rotates anticlockwise and does not abut against the driving wheel 3.2, the spring 3.1 shortens and resets, so that the driving wheel 3.2 and the corresponding friction disc 3.4 move towards the direction far away from the driven wheel 3.3, and the friction disc I3.4 of the driving friction disc 3.9 does not abut against the friction disc II 3.12 of the driven friction disc 3.10. If the spring 3.1 is not used to shorten the return, the friction discs i 3.4 of the driving friction disc 3.9 do not abut against the friction discs ii 3.12 of the driven friction disc 3.10, but may still abut against each other, and the friction discs i 3.4 of the driving friction disc 3.9 still generate resistance when the friction discs ii 3.12 of the driven friction disc 3.10 rotate.
The catch 8 is rotatably arranged in the opening 3.81 of the clutch housing 3.8 by means of a corresponding drive.
The top part is rotatably arranged in the clutch housing 3.8 by a corresponding drive.
As shown in fig. 1-6, the working principle and flow of the present invention are as follows:
in the initial situation, as shown in fig. 2-4, the corresponding driving device control cam 9 abuts against the driving wheel 3.2 in the driving friction disc 3.9 to approach the driven wheel 3.3, the spring 3.1 is stretched, the friction disc i 3.4 in the driving friction disc 3.9 is tightly attached to the friction disc ii 3.12 in the driven friction disc 3.10, the motor 1 is started, the motor output shaft 3.5 drives the driving wheel 3.2 and the corresponding friction disc i 3.4 to rotate, the friction disc ii 3.12 in the driven friction disc 3.10 is driven to slowly rotate by virtue of friction force, so as to raise the pendulum bob 4, after the pendulum bob 4 reaches a specified elevation angle (150 °), the buckle 8 on the clutch housing 3.8 rotates under the control of the corresponding driving device and falls into the clamping groove on the side wall of the driven wheel 3.3, so as to clamp the driven wheel 3.3, and fix the pendulum bob through the clutch device output shaft 3.6. The motor 1 is closed, the test piece is installed at the moment, after the installation is finished, the corresponding driving device is controlled to enable the cam 9 to rotate anticlockwise and not to be abutted to the driving wheel 3.2, the spring 3.1 is shortened and reset, the driving wheel 3.2 and the corresponding friction disc I3.4 move towards the direction far away from the driven wheel 3.3, the friction disc 3.4 of the driving friction disc 3.9 is not abutted to the friction disc II 3.12 of the driven friction disc 3.10, the clutch output shaft 3.6 on the pendulum bob 4 rotates and is only connected with the clutch housing 3.8 through the two bearings 3.7, and the resistance is greatly reduced. When the hammer is dropped, the corresponding driving device is controlled to enable the buckle 8 to rotate reversely, so that the buckle is lifted, the driven wheel 3.3 is separated from the clamping groove, and the driven wheel 3.3 loses fixation. While keeping the cam 9 in position, i.e. the friction discs 3.4 of the driving friction disc 3.9 do not abut against the friction discs ii 3.12 of the driven friction disc 3.10. The pendulum bob 4 freely rotates downwards around the axis of the output shaft 3.6 of the clutch device under the action of gravity, reaches the bottommost position to break the test piece, continues to lift up by inertia, and records the lifting angle after impact.
Claims (8)
1. The utility model provides a but pendulum impact tester of separation and reunion, includes frame, pendulum, motor, and pendulum one end links to each other with the transmission of motor output shaft, rotationally locates frame top, its characterized in that: the device also comprises a clutch device; the pendulum bob can be in transmission connection or separation with an output shaft of the motor under the driving of the clutch device; the clutch device comprises a clutch shell, a driving friction disc, a driven friction disc, a jacking mechanism, a clutch device output shaft, a spring and a connecting key; the clutch shell is arranged on the outer side of the motor; the driving friction disc, the driven friction disc, the jacking mechanism, the spring and the connecting key are all arranged in the clutch shell; the driving friction disc consists of a driving wheel and a friction disc I, and the driving wheel is in transmission connection with the output shaft of the motor through a connecting key; the spring is connected with the output shaft of the motor and the driving wheel; the driven friction disc consists of a driven wheel and a friction disc II; one end of an output shaft of the clutch device is fixedly connected with one end of the pendulum bob, the other end of the output shaft of the clutch device extends into the clutch shell to be fixedly connected with the driven wheel, and the output shaft of the clutch device is connected with the clutch shell through a rotating bearing; and the friction disc I in the driving friction disc can be tightly attached to or separated from the friction disc II in the driven friction disc under the driving of the jacking mechanism.
2. A clutchable pendulum impact tester as claimed in claim 1, wherein: a clamping groove is formed in the side wall of the driven wheel; the clutch shell is provided with an opening corresponding to the side wall of the driven wheel, and the opening is provided with a rotatable buckle matched with the clamping groove.
3. A clutchable pendulum impact tester as claimed in claim 1, wherein: the jacking mechanism comprises a jacking piece; the jacking piece is rotatably arranged in the clutch shell, and the other end of the jacking piece can be abutted against the driving wheel; the driving wheel can enable a friction disc I in the driving friction disc and a friction disc II in the driven friction disc to be tightly attached or detached under the driving of the jacking piece.
4. A clutchable pendulum impact tester as claimed in claim 3, wherein: the top tightening piece adopts a cam.
5. A clutchable pendulum impact tester as claimed in claim 1, wherein: the clutch device further comprises a strut; the strut is arranged on the output shaft of the motor and extends into the clutch shell part; the spring is arranged in parallel with the output shaft of the motor, one end of the spring is fixedly connected with the driving wheel, and the other end of the spring is fixedly connected with the support.
6. A clutchable pendulum impact tester as claimed in claim 2, wherein: the buckle is rotatably arranged at the opening of the clutch shell through a driving device.
7. A clutchable pendulum impact tester as claimed in claim 3, wherein: the top member is rotatably arranged in the clutch housing through a driving device.
8. A clutchable pendulum impact tester as claimed in claim 1, wherein: and an output shaft of the clutch device is connected with the clutch shell through two rotating bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121154586.9U CN214749501U (en) | 2021-05-26 | 2021-05-26 | Pendulum impact testing machine that can separation and reunion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121154586.9U CN214749501U (en) | 2021-05-26 | 2021-05-26 | Pendulum impact testing machine that can separation and reunion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214749501U true CN214749501U (en) | 2021-11-16 |
Family
ID=78625886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121154586.9U Active CN214749501U (en) | 2021-05-26 | 2021-05-26 | Pendulum impact testing machine that can separation and reunion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214749501U (en) |
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2021
- 2021-05-26 CN CN202121154586.9U patent/CN214749501U/en active Active
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