CN212844256U - Plate spring rigidity strength test equipment - Google Patents
Plate spring rigidity strength test equipment Download PDFInfo
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- CN212844256U CN212844256U CN202021447105.9U CN202021447105U CN212844256U CN 212844256 U CN212844256 U CN 212844256U CN 202021447105 U CN202021447105 U CN 202021447105U CN 212844256 U CN212844256 U CN 212844256U
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- fixed clamp
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Abstract
The utility model discloses a plate spring rigidity and strength testing device, belonging to the field of elevator accessory detection, comprising a supporting body and a testing device; a control system is arranged in one end of the support body, and a pressure supply mechanism connected with the control system is arranged in the other end of the support body; the testing device comprises a mounting frame fixedly mounted on the supporting body, a fixed clamp fixedly mounted in one end of the mounting frame, a movable clamp which is positioned on the same horizontal line with the fixed clamp and can move close to or far away from the fixed clamp, a tension sensor fixedly mounted on one side, far away from the fixed clamp, of the movable clamp and a hydraulic cylinder fixedly mounted at one end, far away from the fixed clamp, of the mounting frame, wherein a piston rod of the hydraulic cylinder is connected with one end, far away from the movable clamp, of the tension sensor; one end of the mounting frame, which is far away from the fixing clamp, is fixedly provided with a displacement sensor. The plate spring rigidity strength testing equipment is simple in structure, convenient to use and high in detection efficiency, and the rigidity of the U-shaped plate spring is detected by adopting an automatic technology.
Description
Technical Field
The utility model belongs to the technical field of the elevator accessory detects, concretely relates to leaf spring rigidity test equipment.
Background
The progressive elevator safety tongs generally adopt a U-shaped plate spring as a force application element, and are matched with symmetrical double wedge blocks for use, the wedge blocks on two sides upwards slide to the top end limiting position along two symmetrical inclined planes on the inner side of the opening end of the arranged U-shaped plate spring, the U-shaped plate spring is propped open, the deformation force of the U-shaped plate spring enables the wedge blocks to clamp a guide rail, and the car is stopped by friction force.
Therefore, whether the rigidity of the U-shaped plate spring is qualified or not has a self-evident effect on the use safety of the safety tongs, but the rigidity and the strength of the U-shaped plate spring are particularly difficult to detect, and although some detection devices exist in the market, the detection devices are generally not visual, rely on manpower in large quantity, and have low detection efficiency.
Therefore, an automatic plate spring rigidity testing device with remarkable testing and high detection efficiency is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a leaf spring rigidity intensity test equipment to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a plate spring rigidity strength test device comprises a support body and a test device; a control system is arranged in one end of the support body, and a pressure supply mechanism connected with the control system is arranged in the other end of the support body;
the testing device comprises a mounting frame fixedly mounted on a supporting body, a fixed clamp fixedly mounted in one end of the mounting frame, a movable clamp which is positioned on the same horizontal line with the fixed clamp and can be moved to be close to or far away from the fixed clamp, a tension sensor fixedly mounted on one surface of the movable clamp far away from the fixed clamp, and a hydraulic cylinder fixedly mounted at one end of the mounting frame far away from the fixed clamp, wherein a piston rod of the hydraulic cylinder is connected with one end of the tension sensor far away from the movable clamp;
a displacement sensor is fixedly installed at one end, far away from the fixed clamp, of the mounting frame, and a pull wire of the displacement sensor is connected with the movable clamp;
the tension sensor and the displacement sensor are both connected with the control system;
the upper surfaces of the fixed clamp and the movable clamp are provided with fixing grooves for placing the end parts of the plate springs;
the test equipment also comprises a display screen which is connected with the control system and is used for outputting and displaying the tension parameter, the displacement parameter and a curve graph corresponding to the tension parameter and the displacement parameter.
Preferably, the pressure supply mechanism comprises a water tank fixedly mounted on the support body and a two-way pump
(ii) a One end of the bidirectional pump is communicated with the water tank, and the other end of the bidirectional pump is communicated with the hydraulic cylinder.
Preferably, the mounting frame comprises two fixing plates symmetrically mounted on the supporting body, a fixing bolt located between the fixing plates and connecting the fixed end with the fixing plates.
Preferably, the movable clamp is provided with a sliding block, and the support body is provided with a guide rail corresponding to the lower surface of the sliding block and used for guiding the sliding block in a moving manner.
Preferably, the inner walls of the two fixing grooves close to one side are fixedly provided with a protection pad used for contacting with the end part of the plate spring;
preferably, the test equipment further comprises a protective cover fixedly installed at the outer side of the test device.
Preferably, the protective cover comprises a support frame fixed on the outer side of the testing device;
the front surface and the upper surface of the support frame are both provided with two covering plates in a sliding manner, and one of the covering plates is far away from one surface inside the support frame and is fixedly provided with a handle.
Preferably, the cover is made of a light permeable material.
This leaf spring rigidity intensity test equipment simple structure adopts the automation technology to detect the rigidity of U type leaf spring, shows the rigidity intensity parameter audio-visual of leaf spring to accomplish the quality testing work to the leaf spring, convenient to use, detection efficiency height.
Drawings
Fig. 1 is a schematic structural diagram of a leaf spring rigidity strength testing apparatus in embodiment 1;
fig. 2 is a schematic front view of a plate spring rigidity testing apparatus in embodiment 1;
FIG. 3 is a schematic view of a portion of the cross-section taken along line A-A in FIG. 2;
FIG. 4 is a schematic structural view of a leaf spring rigidity strength test apparatus according to embodiment 2;
fig. 5 is a system architecture diagram of a leaf spring stiffness testing device.
Detailed Description
The present invention will be further described with reference to the following examples.
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.
Example 1
As shown in fig. 1, fig. 2, fig. 3 and fig. 5, the present invention provides a plate spring rigidity testing apparatus, which includes a supporting body 1 and a testing device; a control system 2 is arranged in one end of the support body 1, and a pressure supply mechanism connected with the control system 2 is arranged in the other end of the support body;
the testing device comprises a mounting frame 3 fixedly mounted on the supporting body 1, a fixed clamp 4 fixedly mounted in one end of the mounting frame 3, a movable clamp 5 which is positioned on the same horizontal line with the fixed clamp 4 and can move close to or far away from the fixed clamp 4, a tension sensor 9 fixedly mounted on one surface of the movable clamp 5 far away from the fixed clamp 4 and a hydraulic cylinder 6 fixedly mounted at one end of the mounting frame 3 far away from the fixed clamp 4, wherein a piston rod of the hydraulic cylinder 6 is connected with one end of the tension sensor 9 far away from the movable clamp 5;
one end of the mounting frame 3, which is far away from the fixed clamp 4, is fixedly provided with a displacement sensor 11, and a stay wire of the displacement sensor 11 is connected with the movable clamp 5;
the tension sensor 9 and the displacement sensor 11 are both connected with the control system 2;
the upper surfaces of the fixed clamp 4 and the movable clamp 5 are provided with fixing grooves 10 for placing the ends of the plate spring;
the testing device also comprises a display screen 12 which is connected with the control system 2 and is used for outputting and displaying the tension parameter, the displacement parameter and a curve graph corresponding to the tension parameter and the displacement parameter.
When the device is used, the pressure supply mechanism is started through the control system 2, so that a piston rod of the hydraulic cylinder 6 extends out to drive the movable clamp 5 to be close to the fixed clamp 4, then the U-shaped plate spring is arranged on the fixed clamp 4 and the movable clamp 5, two ends of the U-shaped plate spring are respectively arranged in the fixed grooves 10 on the fixed clamp 4 and the movable clamp 5, the pressure of the hydraulic cylinder 6 is reduced through the control system 2 to enable the piston rod to enter the cylinder body, the movable clamp 5 is driven to be far away from the fixed clamp 4, and then the U-shaped plate spring is stretched; when stretching, detect the pulling force that pneumatic cylinder 6 pulled activity pressed from both sides 5 through force sensor 9, detect the distance that pneumatic cylinder 6 drove activity and press from both sides 5 and move simultaneously through displacement sensor 11 to in will detecting pressure and distance data transfer control system 2, handle the back through control system 2, send pressure data and displacement data to display screen 12 and show, the curve graph of the pressure data and displacement data pulling force and the displacement of different positions is simultaneously followed by control system 2.
Specifically, the pressure supply mechanism comprises a water tank 7 fixedly arranged on the support body 1 and a bidirectional pump 8; one end of the bidirectional pump 8 is communicated with the water tank 7, and the other end is communicated with the hydraulic cylinder 6.
When the hydraulic cylinder 6 is driven to act, the control system 2 controls the bidirectional pump 8 to fill liquid into the cylinder body of the hydraulic cylinder 6, so that the pressure in the cylinder body is increased, the piston rod extends out of the cylinder body, and the movable clamp 5 is driven to be close to the fixed clamp 4; on the contrary, liquid in the cylinder body of the hydraulic cylinder 6 is pumped out by controlling the bidirectional pump 8, the pressure in the cylinder body is reduced, so that the piston rod is contracted into the cylinder body, the movable clamp 5 is driven to be far away from the fixed clamp 4, and the U-shaped plate spring is stretched.
Specifically, the mounting frame 3 includes two fixing plates 31 symmetrically mounted on the supporting body 1, a fixing member 32 located between the fixing plates 31, and a fixing bolt 33 connecting an end of the fixing member 32 with the fixing plate 31.
The fixing clamp 4 is fixedly installed on one surface of one fixing plate 31 close to the other fixing plate 31, and the piston rod 6 is fixed on the other fixing plate 31 far away from the fixing clamp 4.
In order to ensure the stability of the movement of the movable clamp 5, a sliding block 14 is arranged on the movable clamp 5, and a guide rail 13 for guiding the movement of the sliding block 14 is arranged on the support body 1 corresponding to the lower surface of the sliding block 14.
The movable clamp 5 is supported by the slider 14 and the guide rail 13, and when the movable clamp 5 moves, the slider 14 is supported and guided by the guide rail 13, so that the movable clamp 5 is kept stable.
Wherein, in order to reduce the rigid contact between U type leaf spring and the anchor clamps, lead to U type leaf spring damage, all be fixed with on the inner wall that two fixed slots 10 are close to one side each other and be used for with the protection pad 16 of leaf spring tip contact.
The end part of the plate spring is separated from the clamp by arranging the protective pad 16, so that the rigid contact between the plate spring and the clamp is reduced, and the use safety of the equipment is ensured;
here, it should be noted that the protection pad 16 is made of a soft material such as wood board, rubber, or silicone, which can effectively prevent the plate spring from rigidly contacting the clamp.
Example 2
As shown in fig. 4, the plate spring rigidity strength testing apparatus further includes a protection cover 15 fixedly installed at an outer side of the testing device, unlike embodiment 1.
Through set up the protection casing in the testing arrangement outside, avoid when testing, the leaf spring bursts apart, and outside the missile causes danger under the stress to improve the security that test equipment used.
Specifically, the protection cover 15 includes a support frame 151 fixed to the outer side of the test apparatus;
two cover plates 152 are slidably mounted on the front surface and the upper surface of the supporting frame 151, and a handle 153 is fixedly mounted on one surface of one cover plate 152 far away from the inside of the supporting frame 151.
In operation, the inner sides of the two ends of the supporting frame 151 are respectively connected to the two fixing plates 31, and in operation, the protection cover 15 has a surface away from the operator, and the protection is performed by respectively providing two covering plates 152 on the upper surface and the front surface or the rear surface of the supporting frame 151, thereby effectively ensuring the safety of the operator.
Wherein, a handle 153 may be provided on one 152 of the two cover plates 152 on the upper surface, a handle 153 may be provided on one 152 of the two cover plates 152 on the front surface or the rear surface, or a handle 153 may be provided on one 152 of the two cover plates 152 on the upper surface and both the two cover plates 152 on the front surface or the rear surface; thereby making movement of the cover plate 152 more convenient.
When feeding and blanking, the cover plate 152 can be opened by pulling the handle 153, so that the protective cover 15 is opened, and feeding and blanking are facilitated.
Wherein the cover plate 152 is made of a light-permeable material.
The cover plate 152 made of light-permeable material (such as toughened glass and acrylic material plate) has good light-permeability, so that an operator can visually observe the state of the detected plate spring during detection.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a leaf spring rigidity test equipment which characterized in that: comprises a support body (1) and a testing device; a control system (2) is arranged in one end of the support body (1), and a pressure supply mechanism connected with the control system (2) is arranged in the other end of the support body;
the testing device comprises a mounting frame (3) fixedly mounted on a supporting body (1), a fixed clamp (4) fixedly mounted in one end of the mounting frame (3), a movable clamp (5) which is positioned on the same horizontal line with the fixed clamp (4) and can be moved to be close to or far away from the fixed clamp (4), a tension sensor (9) fixedly mounted on one surface, far away from the fixed clamp (4), of the movable clamp (5) and a hydraulic cylinder (6) fixedly mounted at one end, far away from the fixed clamp (4), of the mounting frame (3), wherein a piston rod of the hydraulic cylinder (6) is connected with one end, far away from the movable clamp (5), of the tension sensor (9);
a displacement sensor (11) is fixedly installed at one end, far away from the fixed clamp (4), of the mounting frame (3), and a pull wire of the displacement sensor (11) is connected with the movable clamp (5);
the tension sensor (9) and the displacement sensor (11) are both connected with the control system (2);
the upper surfaces of the fixed clamp (4) and the movable clamp (5) are provided with fixing grooves (10) for placing the ends of the plate springs;
the testing equipment further comprises a display screen (12) which is connected with the control system (2) and is used for outputting and displaying the tension parameter, the displacement parameter and a curve graph corresponding to the tension parameter and the displacement parameter.
2. The plate spring rigidity strength test apparatus according to claim 1, wherein: the pressure supply mechanism comprises a water tank (7) and a bidirectional pump (8) which are fixedly arranged on the support body (1);
one end of the bidirectional pump (8) is communicated with the water tank (7), and the other end of the bidirectional pump is communicated with the hydraulic cylinder (6).
3. The plate spring rigidity strength test apparatus according to claim 1, wherein: the mounting frame (3) comprises two fixing plates (31) symmetrically arranged on the support body (1), fixing bolts (33) positioned between the fixing plates (31) and used for connecting the end parts of the fixing bolts (32) with the fixing plates (31).
4. The plate spring rigidity strength test apparatus according to claim 1, wherein: the movable clamp (5) is provided with a sliding block (14), and the supporting body (1) is provided with a guide rail (13) corresponding to the lower surface of the sliding block (14) and used for moving and guiding the sliding block (14).
5. The plate spring rigidity strength test apparatus according to claim 1, wherein: and protective pads (16) used for contacting with the end parts of the plate springs are fixedly arranged on the inner walls of the two fixing grooves (10) close to one side.
6. The plate spring rigidity strength test apparatus according to any one of claims 1 to 5, wherein: the test equipment further comprises a protective cover (15) fixedly arranged on the outer side of the test device.
7. The plate spring rigidity strength test apparatus according to claim 6, wherein: the protective cover (15) comprises a supporting frame (151) fixed on the outer side of the testing device;
the front surface and the upper surface of the support frame (151) are both provided with two cover plates (152) in a sliding mode, and one of the cover plates (152) is far away from one surface inside the support frame (151) and is fixedly provided with a handle (153).
8. The plate spring rigidity strength test apparatus according to claim 7, wherein: the cover plate (152) is made of a light permeable material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021447105.9U CN212844256U (en) | 2020-07-21 | 2020-07-21 | Plate spring rigidity strength test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021447105.9U CN212844256U (en) | 2020-07-21 | 2020-07-21 | Plate spring rigidity strength test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212844256U true CN212844256U (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021447105.9U Active CN212844256U (en) | 2020-07-21 | 2020-07-21 | Plate spring rigidity strength test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212844256U (en) |
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2020
- 2020-07-21 CN CN202021447105.9U patent/CN212844256U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230506 Address after: Building 21, No. 19 Haiwan Avenue, Xitangqiao Street, Haiyan County, Jiaxing City, Zhejiang Province, 314000 Patentee after: Lotte elevator parts (Zhejiang) Co.,Ltd. Address before: Building 8, 5333 Beiqing Road, Qingpu District, Shanghai Patentee before: SHANGHAI LIFTECH ELEVATOR ACCESSORIES Co.,Ltd. |
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| TR01 | Transfer of patent right |