A multifunctional spring force measuring mechanism

Abstract

The present invention provides a multifunctional spring force measuring mechanism, which includes a sliding rack, a scale gear, and a force measuring gear; the sliding rack, the scale gear, and the force measuring gear are arranged on the same plane, and both sides of the scale gear are meshed with the sliding rack and the force measuring gear respectively; a rotating disk is coaxially fixed to the force measuring gear, and a tension disk is suspended from the outer edge of the rotating disk. The structure of the present invention is simple, with good processing technology and maintainability; it has good economy, is convenient to operate, can quickly detect; and has high safety and reliability.

Description

Technical Field

[0001] The present invention relates to a multifunctional spring force measuring mechanism, belonging to the technical field of mechanical design. Background Art

[0002] There is a small-torque torsion spring on the product developed by the company. Its torque is very small and it cannot be measured on a spring force measuring machine. Moreover, due to the unqualified torque of this spring, the pass rate is very low, and the torque detection cost is very high, which cannot meet the requirements of simple and rapid detection.

[0003] In addition, a high-precision compression spring is required for the balance valve installed in the product to offset the tiny internal and external air pressure forces and achieve a balance. During the production process, the pass rate of this spring is very low due to the unqualified compression elastic force, and its compression elastic force is lower than the range of the detection instrument, which cannot meet the detection requirements. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a multifunctional spring force measuring mechanism, which can solve the detection problems of small spring forces of various different models and can meet the functional requirements of good economy, convenient operation and rapid detection.

[0005] The present invention is achieved through the following technical solutions.

[0006] A multifunctional spring force measuring mechanism provided by the present invention includes a sliding rack, a scale gear and a force measuring gear; the sliding rack, the scale gear and the force measuring gear are arranged on the same plane, and both sides of the scale gear are meshed with the sliding rack and the force measuring gear respectively; a rotating disk is coaxially fixed to the force measuring gear, and a tension disk is hung on the outer edge of the rotating disk.

[0007] A torsion spring bracket is coaxially fixed to the scale gear.

[0008] The sliding rack is composed of a pressing strip and a grooved rack. The teeth on the grooved rack are meshed with the scale gear. The pressing strip is fixed on the grooved rack and the direction of the pressing strip is opposite to the rack direction of the grooved rack.

[0009] The pressing strip is horizontally fixed.

[0010] A torsion spring hook is fixed on the outer edge of the pressing strip.

[0011] The sliding rack, the scale gear and the force measuring gear are all arranged on a frame. The sliding rack is fixedly arranged to move linearly, and the scale gear and the force measuring gear are rotatably fixed.

[0012] A plurality of holes are distributed along the middle line on the grooved rack, and the pressing strip is fixed in any one of the holes.

[0013] The sliding rack can move vertically.

[0014] The pressing strip is fixed by a pressing bolt in a threaded manner.

[0015] The beneficial effects of the present invention are as follows: simple structure, good processing technology and maintainability; good economy, convenient operation, capable of rapid detection; relatively high safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural view of the present invention;

[0017] Figure 2 is Figure 1 the top view of

[0018] Figure 3 is Figure 1 a schematic structural view of the sliding rack in

[0019] Figure 4 is Figure 3 the bottom view of

[0020] Figure 5 is a schematic working view of installing a tension spring of the present invention;

[0021] Figure 6 is a schematic working view of installing a compression spring of the present invention.

[0022] In the figure: 1 - frame, 2 - sliding rack, 3 - torsion spring bracket, 4 - graduated gear, 5 - force measuring gear, 6 - rotating disk, 7 - tension disk, 8 - pressing bolt, 9 - slotted rack, 10 - torsion spring hook, 11 - pressing strip. DETAILED DESCRIPTION OF THE INVENTION

[0023] The technical solution of the present invention will be further described below, but the scope of protection claimed is not limited thereto.

[0024] As Figures 1 to 6 shown, a multifunctional spring force measuring mechanism includes a sliding rack 2, a graduated gear 4, and a force measuring gear 5; the sliding rack 2, the graduated gear 4, and the force measuring gear 5 are arranged on the same plane, and both sides of the graduated gear 4 are meshed with the sliding rack 2 and the force measuring gear 5 respectively; a rotating disk 6 is coaxially fixed to the force measuring gear 5, and a tension disk 7 is hung on the outer edge of the rotating disk 6.

[0025] A torsion spring bracket 3 is coaxially fixed to the graduated gear 4.

[0026] The sliding rack 2 is composed of a pressing strip 11 and a slotted rack 9, the teeth on the slotted rack 9 are meshed with the graduated gear 4, the pressing strip 11 is fixed on the slotted rack 9 and the direction of the pressing strip 11 is opposite to the rack direction of the slotted rack 9.

[0027] The pressing strip 11 is horizontally fixed.

[0028] A torsion spring hook 10 is fixed on the outer edge of the pressing strip 11.

[0029] The sliding rack 2, the graduated gear 4, and the force-measuring gear 5 are all arranged on the frame 1. The sliding rack 2 is fixedly arranged to move linearly, and the graduated gear 4 and the force-measuring gear 5 are rotatably fixed.

[0030] A plurality of holes are distributed along the center line on the grooved rack 9, and the pressing strip 11 is fixed in any one of the holes.

[0031] The sliding rack 2 is movable in the vertical direction.

[0032] The pressing strip 11 is fixed by a pressing bolt 8 in a threaded manner.

[0033] Thus, the spring to be measured is installed on the sliding rack 2. The sliding rack 2 meshes with the graduated gear 4, the graduated gear 4 meshes with the force-measuring gear 5, and at the same time, the force-measuring gear 5 and the rotating disk 6 are coaxial. After the spring to be measured is installed on the sliding rack 2, weights are added to the tension disk 7.

[0034] After the spring to be measured is installed on the sliding rack 2, weights are added to the tension disk 7. When the tension disk 7 exits from position A and force-measuring weights are gradually added, this set of mechanisms can detect the stiffness coefficient and the tension of the tension spring; when the tension disk 7 exits from position B and force-measuring weights are gradually added, this set of mechanisms can detect the stiffness coefficient and the tension of the compression spring; when the spring to be measured is installed on the torsion spring bracket 3 and weights are added to the tension disk 7, when the tension disk 7 exits from position B and force-measuring weights are gradually added, the stiffness coefficient and the tension of the torsion spring can be detected thereby.

[0035] The general working principle is as follows:

[0036] A. Detect the stiffness coefficient and the tension of the tension spring

[0037] a) Fix the frame 1 on the force-measuring platform and clean the tension scale on the frame 1.

[0038] b) Detect the rotational flexibility of the sliding rack 2, the graduated gear 4, the force-measuring gear 5, and the rotating disk 6, and add lubricating oil to the rotating parts such as bearings.

[0039] c) Pass the rope of the tension disk 7 through the A position of the rotating disk 6.

[0040] d) Fix one end of the tension spring on the sliding rack 2, add weights to the tension disk 7, and detect the balancing force.

[0041] e) Fix one end of the tension spring on the frame 1 and the other end on the sliding rack 2. Adjust the height on the sliding rack 2 to make the tension spring in a free length state, and lock the two fixed ends of the tension spring.

[0042] f) Add weights to the tension disc 7, detect the relationship between the stretching length of the spring and the tension, and calculate the spring constant and tension of the tension spring.

[0043] B. Detect the spring constant and tension of the compression spring

[0044] a) Fix the frame 1 on the force measuring platform and clean the tension scale on the frame 1.

[0045] b) Detect the rotational flexibility of the sliding rack 2, the scale gear 4, the force measuring gear 5, and the rotating disc 6, and add lubricating oil to the rotating parts such as bearings.

[0046] c) Pass the rope of the tension disc 7 through the B position of the rotating disc 6.

[0047] d) Fix one end of the compression spring on the sliding rack 2, add weights to the tension disc 7, and detect the balance force.

[0048] e) Fix one end of the compression spring on the frame 1 and the other end on the sliding rack 2. Adjust the height on the sliding rack 2 to make the compression spring in a free length state, and lock the two fixed ends of the tension spring.

[0049] f) Add weights to the tension disc 7, detect the relationship between the compression length of the spring and the tension, and calculate the spring constant and tension of the tension spring.

[0050] C. Detect the spring constant and tension of the torsion spring

[0051] a) Fix the frame 1 on the force measuring platform and clean the angle scale of the scale gear 4.

[0052] b) Detect the rotational flexibility of the sliding rack 2, the scale gear 4, the force measuring gear 5, and the rotating disc 6, and add lubricating oil to the rotating parts such as bearings.

[0053] c) Pass the rope of the tension disc 7 through the B position of the rotating disc 6.

[0054] d) Fix one end of the torsion spring on the 3 torsion spring bracket, adjust the height and angle so that the other torsion angle is located at the 0° scale position of the scale gear 4.

[0055] e) Fix one end of the torsion spring on the 3 torsion spring bracket and the other end on the 4 scale gear. Adjust the height on the 3 torsion spring bracket to make the torsion spring in a free length state, and lock the two fixed ends of the tension spring.

[0056] f) Add weights to the tension plate 7, detect the relationship between the torsion angle of the spring and the tension, and calculate the spring constant and tension of the tension spring.

Claims

1. A multifunctional spring force measuring mechanism, comprising a sliding rack (2), a scale gear (4), and a force measuring gear (5), characterized in that: The sliding rack (2), the scale gear (4), and the force-measuring gear (5) are arranged in the same plane. The two sides of the scale gear (4) are respectively meshed with the sliding rack (2) and the force-measuring gear (5); a rotating disk (6) is coaxially fixed to the force-measuring gear (5), and a tension disk (7) is hung on the outer edge of the rotating disk (6); The sliding rack (2) is composed of a pressing strip (11) and a grooved rack (9). The teeth on the grooved rack (9) are meshed with the scale gear (4). The pressing strip (11) is fixed on the grooved rack (9), and the direction of the pressing strip (11) is opposite to the rack direction of the grooved rack (9); The sliding rack (2), the scale gear (4), and the force-measuring gear (5) are all arranged on the frame (1). The sliding rack (2) is fixedly arranged to move linearly, and the scale gear (4) and the force-measuring gear (5) are rotatably fixed; A torsion spring hook (10) is fixed on the outer edge of the pressing strip (11); A plurality of holes are distributed along the middle line on the grooved rack (9), and the pressing strip (11) is fixed in any one of the holes; The sliding rack (2) is movable in the vertical direction; A torsion spring bracket (3) is coaxially fixed to the scale gear (4); The pressing strip (11) is horizontally fixed; The pressing strip (11) is fixed by a pressing bolt (8) in a threaded manner.

Images