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CN-121977778-A - Force hammer and force hammer measuring method

CN121977778ACN 121977778 ACN121977778 ACN 121977778ACN-121977778-A

Abstract

The utility model provides a power hammer and measuring method of power hammer, power hammer includes tup, body and force transducer, and the body includes hammer body and hammer handle, and force transducer includes first end and second end, and first end side is used for being connected with the hammer body, and the second end side is used for being connected with the tup, perhaps, the tup setting is in the side that the hammer body kept away from force transducer to make at least be provided with the hammer body between tup and the force transducer. The force sensor is a piezoelectric force sensor, and the hammer head is detachably connected with the force sensor and the hammer body. The positions of the hammer body and the hammer head relative to the force sensor are adjusted so that the force hammer can be in different states, whether the mass object on one side of the force sensor away from the hammer head is all the mass objects except the hammer head at present or not is adjusted, the sensitivity of the force hammer representing the actual measured force is adjusted, the actual measuring range of the force hammer is adjusted, and a person only needs to carry one force hammer during measurement, so that the measured structure with different frequencies and/or masses can be measured, the multiple functions of one hammer are realized, and the use cost and the management cost of equipment are reduced.

Inventors

  • TIAN SHAOJUN
  • GU XIAOZHUO
  • Liang Dongpeng
  • ZENG QINGYI
  • LUO DEYANG

Assignees

  • 上汽通用五菱汽车股份有限公司

Dates

Publication Date
20260505
Application Date
20260209

Claims (10)

  1. 1. A force hammer, the force hammer comprising: A hammer head; the body comprises a hammer body and a hammer handle; A force sensor including a first end and a second end, the first end side being for connection with the hammer body; The second end side is used for being connected with the hammer head, or the hammer head is arranged on one side of the hammer body far away from the force sensor, so that at least the hammer body is arranged between the hammer head and the force sensor; The hammer head is detachably connected with the force sensor and the hammer body.
  2. 2. The power hammer of claim 1, wherein the power hammer includes at least one weight, the second end is directly connected to the hammer head when the second end side is used to connect to the hammer head, and the weight is disposed at an end of the hammer body away from the hammer head, and the weight is detachably connected to the hammer body.
  3. 3. The force hammer of claim 1, wherein the force hammer includes at least one weight, one end of the weight is directly connected to the hammer head when the second end side is used to connect to the hammer head, the other end of the weight is connected to the second end, and the weight is detachably connected to the force sensor and the hammer head.
  4. 4. The force hammer of claim 1, wherein the force hammer includes at least one weight, the weight is directly connected to the second end and the weight is removably connected to the force sensor when the hammer head is disposed on a side of the hammer body remote from the force sensor.
  5. 5. The force hammer according to any one of claims 2-4, characterized in that the force hammer comprises a stud, the hammer head and the balancing weight are detachably connected through the stud, and/or the hammer head and the force sensor are detachably connected through the stud, and/or the hammer head and the hammer body are detachably connected through the stud, and/or the force sensor and the balancing weight are detachably connected through the stud, and/or the balancing weight and the hammer body are detachably connected through the stud.
  6. 6. A force hammer according to any one of claims 1-4, characterized in that the material of the hammer head is any one of rubber, aluminum, steel.
  7. 7. A method of measuring a force hammer, characterized in that the force hammer according to any one of claims 1-6 is used for measuring, comprising the following steps: connecting one end of the hammer body with the first end side of the force sensor; connecting the hammer head with the second end side of the force sensor; or the hammer head is arranged on one side of the hammer body away from the force sensor.
  8. 8. The method for measuring a force hammer according to claim 7, wherein the force hammer includes at least one weight, and the connecting the hammer head with the second end side specifically includes: and the second end is directly connected with the hammer head, and one end of the hammer body, which is far away from the hammer head, is directly connected with the balancing weight, so that the force hammer is in a first state.
  9. 9. The method for measuring a force hammer according to claim 7, wherein the force hammer includes at least one weight, and the connecting the hammer head with the second end side specifically includes: One end of the balancing weight is directly connected with the hammer head, and the other end of the balancing weight is directly connected with the second end, so that the force hammer is in a second state.
  10. 10. The method of measuring a force hammer of claim 7, wherein the force hammer includes at least one weight, and wherein the hammer head is mounted on a side of the hammer body remote from the force sensor, specifically comprising: And the balancing weight is directly connected with the second end, and the hammer head is directly connected with one side of the hammer body far away from the force sensor, so that the force hammer is in a third state.

Description

Force hammer and force hammer measuring method Technical Field The invention relates to the technical field of force hammers, in particular to a force hammer and a force hammer measuring method. Background The modal test is a test for testing the natural frequency, the vibration mode and the damping ratio of a mechanical system, and the principle is that the natural characteristic of the system is solved by known exciting force and system response. In the test process, the force hammer is generally used for measurement, and the force hammer can generate excitation with wider frequency and has the advantages of simplicity in operation and the like, so that the force hammer is widely applied to modal tests in the engineering fields of automobiles and the like. During hammering, a person drives the hammer to hammer the tested structure, so that impact excitation is applied to the tested structure of the mechanical system, and the inherent characteristics of the mechanical system are excited. When measuring the measured structure of different mechanical systems, if the measured structure with lower measuring frequency and larger mass is measured, a force hammer with larger weight is needed, or if the measured structure with higher measuring frequency and smaller mass is measured, a force hammer with smaller weight is needed, so that multiple force hammers with different specifications are needed for measuring the measured structure of different mechanical systems, and the input equipment is excessive, so that the cost of the used equipment is increased. Disclosure of Invention The application provides a force hammer and a measuring method of the force hammer, which are used for solving the problem that the cost of using equipment is increased because a plurality of force hammers with different specifications are required to be used for measuring measured structures of different mechanical systems. The first aspect of the present application provides a force hammer comprising: A hammer head; the body comprises a hammer body and a hammer handle; A force sensor including a first end and a second end, the first end side being for connection with the hammer body; The second end side is used for being connected with the hammer head, or the hammer head is arranged on one side of the hammer body far away from the force sensor, so that at least the hammer body is arranged between the hammer head and the force sensor; The hammer head is detachably connected with the force sensor and the hammer body. According to the scheme, the positions of the hammer body and the hammer head relative to the force sensor are adjusted, so that the force hammer can be in different states, namely, along the striking direction of the force hammer, whether the mass object on the side, away from the hammer head, of the force sensor is all the mass objects except the hammer head at present or not is adjusted, the sensitivity of the force hammer representing actual measured force is adjusted, the actual measuring range of the force hammer is adjusted, namely, the measuring range of the force hammer is enlarged, and a person only needs to carry one force hammer during measurement, so that the measured structure with different frequencies and/or masses can be measured, the applicability of the force hammer is improved, the multi-purpose of the force hammer is realized, the measurement efficiency is improved, the equipment investment is reduced, and the equipment use cost and the management cost are reduced. According to the scheme, the force hammer comprises at least one balancing weight, when the second end side is used for being connected with the hammer head, the second end is directly connected with the hammer head, the balancing weight is arranged at one end of the hammer body away from the hammer head, and the balancing weight is detachably connected with the hammer body. According to the scheme, the force hammer comprises at least one balancing weight, when the second end side is used for being connected with the hammer head, one end of the balancing weight is directly connected with the hammer head, the other end of the balancing weight is connected with the second end, and the balancing weight is detachably connected with the force sensor and the hammer head. According to the scheme, the force hammer comprises at least one balancing weight, when the hammer head is arranged on one side of the hammer body away from the force sensor, the balancing weight is directly connected with the second end, and the balancing weight is detachably connected with the force sensor. According to the scheme, the force hammer comprises a stud, the hammer head and the balancing weight are detachably connected through the stud, the hammer head and the force sensor are detachably connected through the stud, the hammer head and the hammer body are detachably connected through the stud, the force sensor and the balancing weight are detachably connected through the