50-ton closed-loop measurement and control timber tensile test device
A tensile test, wood technology, applied in the measurement device, using the application of stable tension / pressure test material strength, analysis of materials, etc., can solve the inability to achieve simultaneous clamping force and tension adjustment, longitudinal loading tension and transverse specimens The end loading force is not synchronized, etc., to improve the efficiency of the test work and the effect of simple and easy operation
Inactive Publication Date: 2017-03-08
黑龙江省木材科学研究所
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[0003] In order to solve the problem that the existing wood tensile test device cannot realize synchronous clamping force and tension adjustment, and the longitudinal loading tension and the loading force at the end of the transverse sample are not synchronized, the present invention further provides a 50-ton closed-loop measurement and control wood tensile test device
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[0020] Specific embodiments: for illustration in conjunction with the accompanying drawings, the 50-ton closed-loop measurement and control timber tensile test device of the present embodiment includes a frame body 1, a left clamping mechanism 2, a right clamping mechanism 3, a stretching oil cylinder 4, a displacement sensor 5 and Tension sensor 6; the left clamping mechanism 2 and the right clamping mechanism 3 are slidably installed on the frame body 1, and a stretching oil cylinder 4 is fixedly installed on the left and right sides of the frame body 1, and the output of the stretching oil cylinder 4 The end is connected with the left clamping mechanism 2 and the right clamping mechanism 3 through thrust joint bearings, the stretching direction of the left stretching cylinder is the same as the sliding direction of the left clamping mechanism 2, and the stretching direction of the right stretching cylinder Same as the sliding direction of the right clamping mechanism 3 , a t...
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The invention discloses a 50-ton closed loop measurement and control wood tensile test device, belonging to the technical field of wood detection, and aiming at solving the problem that synchronous clamping force and tensile force regulation cannot be realized by the existing wood tensile test device, and the longitudinal loading tensile force and the loading force on the end part of the transverse test sample are not synchronous. A left clamping mechanism and a right clamping mechanism are arranged on a rack body in a sliding manner, a stretching oil cylinder is fixedly arranged at each of left and right sides of the rack body; output ends of the stretching oil cylinders are connected to the left clamping mechanism and the right clamping mechanism through thrust joint bearings; the stretching direction of the stretching oil cylinder at the left side is the same as the sliding direction of the left clamping mechanism, the stretching direction of the stretching oil cylinder at the right side is the same as the sliding direction of the right clamping mechanism; a tension sensor is further arranged on the output shafts of the stretching oil cylinders; displacement sensors are arranged on the left clamping mechanism and the right clamping mechanism. The 50-ton closed loop measurement and control wood tensile test device is used for a wood stretching test.
Description
technical field [0001] The invention relates to a wood tensile test device, in particular to a 50-ton closed-loop measurement and control wood tensile test device, which belongs to the technical field of wood detection. Background technique [0002] At present, the 50-ton wood tensile test device commonly used at home and abroad can only control the tensile force of the loading test, but cannot control the clamping force of the fixture while increasing the tensile force, that is, it is impossible to realize simultaneous clamping force and tension adjustment. The loading tension and the loading force at the end of the transverse specimen are not synchronized. In the test, if the constant clamping force of the fixture is too small, due to the large variation range of wood deformation, the wood sample will fall off from the fixture during the wood tensile test; if the constant clamping force of the fixture is too large, It will cause the edge of the fixture to directly break t...
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IPC IPC(8): G01N3/10G01N3/04
Inventor 王子奇于大伟何小东赵秀王宏棣黄在华时兰翠关帅孟祥鹏
Owner 黑龙江省木材科学研究所