CN204535995U - Bicycle saddle fatigue tester - Google Patents

Abstract

It is simple that the purpose of this utility model is just to provide a kind of structure to solve the problem, easy to use, testing efficiency is high, bicycle saddle fatigue tester applied widely, comprise frame, saddle fixing device, measurement mechanism, hold down gag and drive unit, saddle fixing device, measurement mechanism, hold down gag and drive unit are all contained in frame, saddle is fixed on saddle fixing device by saddle pipe, drive unit connects hold down gag and drives hold down gag to be compressed by saddle, drive unit connects hold down gag by measurement mechanism, the pressure that measurement mechanism is subject to for measuring saddle.The testing efficiency of this fatigue tester is high, structure is simple, easy to manufacture; The special fatigue tester of bicycle saddle can detect the fatigue strength of seat cushion and serviceable life before saddle dispatches from the factory, and ensure that the outgoing of saddle.

Description

Bicycle Saddle Fatigue Testing Machine

technical field

The utility model relates to the field of vibration testing of structural components, in particular to a bicycle saddle fatigue testing machine.

Background technique

At present, as a means of transportation with the highest usage rate, the safety of bicycles has attracted more and more attention, so the testing of its key components is particularly critical. The ability of the bicycle saddle to withstand the cumulative impact load is an important index to measure the safety and service life of the seat. During normal use, the seat cushion will be subjected to cumulative load and impact force, so a safe and reliable saddle must be able to withstand a certain size of fatigue test. However, half of the existing bicycle saddle production plants lack special fatigue testing equipment, so that the saddles delivered by the manufacturers generally cannot be guaranteed in quality, and testing equipment must be built for testing. Diversity, the temporary test equipment is difficult to meet the repeatability of the test and the size requirements of the saddle, and the test efficiency is extremely low. Moreover, the saddle fatigue testing machines currently on the market cannot well control the force acting on the saddle, and the structure is relatively complicated, so the test is not flexible and convenient.

Utility model content

The purpose of the utility model is to provide a bicycle saddle fatigue testing machine which is simple in structure, convenient to use, high in testing efficiency, wide in application range and capable of testing the quality of the bicycle saddle in order to solve the above problems.

The utility model realizes above-mentioned purpose through following technical scheme:

Bicycle saddle fatigue testing machine, used for fatigue testing of bicycle saddles, including frame, saddle fixture, measuring device, pressing device and driving device, saddle fixing device, measuring device, pressing device and driving device They are all installed on the frame, the saddle is fixed on the saddle fixing device through the saddle tube, the driving device is connected to the pressing device and drives the pressing device to compress the saddle, the driving device is connected to the pressing device through the measuring device, and the measuring device is used Used to measure the pressure on the saddle.

Preferably, the frame is a horizontal base, and the saddle fixing device, the measuring device, the pressing device and the driving device are all installed horizontally on the frame.

Preferably, the frame is a vertical frame, and the saddle fixing device, measuring device, pressing device and driving device are all installed vertically on the frame.

Preferably, the saddle fixing device includes a saddle tube support seat and a support block, the saddle tube is placed horizontally and supported by the saddle tube support seat, one end of the saddle tube is connected to the saddle, and the other end of the saddle tube is connected to the support block; A second pressure sensor is provided at the connecting portion between the saddle tube and the support block.

Preferably, the pressing device includes a saddle pressure head, a guide rod and a linear bearing seat, the guide rod is installed on the base through the linear bearing seat, one end of the guide rod is connected to the saddle pressure head, and the other end is connected to the measuring device.

Preferably, the measuring device includes a first pressure sensor, a first Y joint, a second Y joint, a first joint bearing and a second joint bearing, and one end of the first pressure sensor is connected to the first joint through the first Y joint. The other end of the joint bearing is connected to the second joint bearing through the second Y-shaped joint, and the second joint bearing is connected to the pressing device through a shaft coupling.

Preferably, the driving device includes a driving cylinder, and the piston rod of the driving cylinder is connected to the measuring device.

Preferably, the first sensor is a BLR-1 sensor.

Preferably, the frame is made of aluminum profiles.

Preferably, the piston rod of the driving cylinder, the first pressure sensor, the guide rod and the axis of the saddle tube are on the same straight line.

The beneficial effects of the utility model are: the fatigue testing machine has high test efficiency, simple structure, low cost, and easy manufacture; the utility model is a special fatigue testing machine for bicycle saddles, which can test the fatigue strength of the seat cushion before the saddle leaves the factory. To ensure the factory quality of the saddle by testing the service life of the saddle; by adjusting the BLR-1 sensor to output different pressures, simulating the different weights of each person, and detecting the fatigue strength of the bicycle saddle under different pressures, it is suitable for The range is wide; the lower clamp and the upper clamp can clamp the saddle tube of the bicycle seat cushion, and by changing the clamping position, the testing machine can be applied to saddles of various sizes.

Description of drawings

Fig. 1 is the structural representation that the frame of the utility model is a horizontal base.

Fig. 2 is the structure schematic diagram that the frame of the utility model is a vertical machine base.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Figure 1 and Figure 2, the bicycle saddle fatigue testing machine is used to perform fatigue testing on the bicycle saddle, including a frame 1, a saddle fixing device, a measuring device, a pressing device and a driving device, and a saddle fixing device , measuring device, pressing device and driving device are all installed on the frame 1, the saddle is fixed on the saddle fixing device through the saddle tube, the driving device is connected with the pressing device and drives the pressing device to compress the saddle, and the driving device The compression device is connected via a measuring device for measuring the pressure on the saddle.

The frame 1 is a horizontal base or a vertical frame, and the saddle fixing device, measuring device, pressing device and driving device are all horizontally installed on the frame 1 .

The saddle fixing device includes a saddle tube support seat 2 and a support block 3. The saddle tube is placed horizontally and supported by the saddle tube support seat 2. One end of the saddle tube is connected to the saddle, and the other end of the saddle tube is connected to the support block 3; A second pressure sensor 4 is provided at the connection position with the support block 3 .

The pressing device comprises a saddle pressure head 5, a guide rod 6 and a linear bearing seat 7, the guide rod 6 is installed on the base through the linear bearing seat 7, one end of the guide rod 6 is connected to the saddle pressure head 5, and the other end is connected to a measuring device.

The measuring device includes a first pressure sensor 8, a first Y joint, a second Y joint, a first joint bearing and a second joint bearing, and one end of the first pressure sensor 8 is connected to the first joint bearing through the first Y joint , the other end is connected to the second joint bearing through the second Y joint, and the second joint bearing is connected to the pressing device through the coupling.

The driving device includes a driving cylinder 9, and the piston rod of the driving cylinder 9 is connected with the measuring device.

The first sensor is a BLR-1 type sensor.

Frame 1 is made of aluminum profile.

The piston rod of the drive cylinder, the first pressure sensor 8, the guide rod 6 and the axle center of the saddle tube are on the same straight line.

The above-described embodiments are only preferred embodiments of the present utility model, and are not limitations to the technical solutions of the present utility model. As long as the technical solutions that can be realized on the basis of the above-mentioned embodiments without creative work, all should be regarded as falling into the scope of this invention. within the protection scope of utility model patents.

Claims (10)

1. bicycle saddle fatigue tester, for carrying out testing fatigue to bicycle saddle, it is characterized in that: comprise frame (1), saddle fixing device, measurement mechanism, hold down gag and drive unit, saddle fixing device, measurement mechanism, hold down gag and drive unit are all contained in frame (1), saddle is fixed on saddle fixing device by saddle pipe, drive unit connects hold down gag and drives hold down gag to be compressed by saddle, drive unit connects hold down gag by measurement mechanism, the pressure that measurement mechanism is subject to for measuring saddle.

2. bicycle saddle fatigue tester according to claim 1, is characterized in that: described frame (1) is horizontal base, and the equal level of saddle fixing device, measurement mechanism, hold down gag and drive unit is arranged in frame (1).

3. bicycle saddle fatigue tester according to claim 1, is characterized in that: described frame (1) is vertical support, and saddle fixing device, measurement mechanism, hold down gag and drive unit are all vertically mounted in frame (1).

4. bicycle saddle fatigue tester according to claim 1, it is characterized in that: described saddle fixing device comprises saddle pipe supporting seat (2), support limit stop (3), saddle pipe horizontal positioned is also supported by saddle pipe supporting seat (2), one end of saddle pipe connects saddle, and the other end of saddle pipe connects support limit stop (3); The connecting portion of described saddle pipe and support limit stop (3) is provided with the second pressure transducer (4).

5. bicycle saddle fatigue tester according to claim 1, it is characterized in that: described hold down gag comprises saddle pressure head (5), guide pole (6) and linear axis bearing (7), guide pole (6) is arranged on base by linear axis bearing (7), one end of guide pole (6) connects saddle pressure head (5), and the other end connects measurement mechanism.

6. bicycle saddle fatigue tester according to claim 1, it is characterized in that: described measurement mechanism comprises the first pressure transducer (8), a Y word joint, the 2nd Y word joint, the first oscillating bearing and second joint bearing, one end of first pressure transducer (8) connects the first oscillating bearing by a Y word joint, the other end connects second joint bearing by the 2nd Y word joint, and second joint bearing connects hold down gag by shaft coupling.

7. bicycle saddle fatigue tester according to claim 1, is characterized in that: described drive unit comprises driving cylinder (9), drives the piston rod of cylinder (9) to connect measurement mechanism.

8. bicycle saddle fatigue tester according to claim 6, is characterized in that: described first pressure transducer is BLR-1 type sensor.

9. bicycle saddle fatigue tester according to claim 1, is characterized in that: described frame (1) is made up of aluminium section bar.

10. bicycle saddle fatigue tester according to claim 7, is characterized in that: the piston rod of described driving cylinder (9), the first pressure transducer (8), guide pole (6) and saddle pipe axle center are on same straight line.