Radial pressure type thermometer movement
By using the chamber design of the radial pressure thermometer movement and the vertical meshing transmission of the reversing gear, the problem of the high difficulty in machining small module gears is solved, achieving the effects of simplified machining, reduced costs, and improved transmission smoothness and accuracy.
Patent Information
- Application Number
- CN202423108088.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-17
AI Technical Summary
The small-module gears in the existing pressure temperature gauge movement are difficult to manufacture and require advanced equipment.
The radial pressure thermometer movement structure includes a chamber design consisting of a large plate, a small plate, a support, a reversing pointer shaft, a reversing gear, and a ball head spindle. It utilizes the vertical meshing transmission of the reversing gear and the reverse torque of the hairspring to eliminate transmission chain errors.
It simplifies production and processing, reduces costs, and improves production efficiency, transmission smoothness, and precision.
Smart Images
Figure CN223565116U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to pressure instrument technical field, concretely relates to a core structure of pressure type temperature table. BACKGROUND
[0002] The principle of the pressure type temperature table is based on the change relation between the saturated vapor pressure and the temperature of the evaporated liquid in the closed temperature measuring system, and the temperature is measured. When the temperature capsule senses the temperature change, the saturated vapor in the closed system generates the corresponding pressure, causes the change of the curvature of the elastic element, makes the displacement of the free end, and then the displacement is changed into the indication value by the gear amplification mechanism. The temperature table has the characteristics of small volume of temperature capsule, fast reaction speed, high sensitivity, direct reading and the like.
[0003] The core is the pressure transmission element in the pressure type temperature table. The core structure in the prior art field adopts a pair of meshing gears in the vertical direction, one shaft gear on the reversing pointer shaft is meshed with another disc gear fixed at one end of the ball head spindle. The disc gear belongs to the small modulus gear, and the machining difficulty of the small modulus gear is high, and the equipment requirement is high. CONTENT OF THE UTILITY MODEL
[0004] In order to solve the problems in the prior art, the utility model provides a radial pressure type temperature table core, and solves the problems of high machining difficulty of the small modulus gear and high equipment requirement in the core structure of the existing pressure type temperature table.
[0005] The radial pressure type temperature table core provided by the utility model comprises a chamber composed of a large clamp plate, a small clamp plate and two support columns, and further comprises a reversing pointer shaft, a reversing gear piece one, a reversing gear piece two, a reversing gear sleeve, a ball head spindle and a hairspring arranged in the chamber. The two ends of the reversing pointer shaft are freely rotatable in the holes of the large clamp plate and the small clamp plate respectively. The reversing gear piece one is fixed on the reversing pointer shaft. The reversing gear piece two is arranged in perpendicular meshing with the reversing gear piece one. The reversing gear piece two is fixedly connected with the reversing gear sleeve and the ball head spindle. The ball head spindle is freely rotatable in the holes of the bending parts at the two ends of the large clamp plate. The outer end of the hairspring arranged on the reversing pointer shaft is fixed in the groove of the support column. When the reversing gear pieces are meshed and driven, the hairspring generates the reverse torque to remove the transmission chain error.
[0006] The radial pressure type temperature table core provided by the utility model has the advantages of simple structure, convenient production and processing, improved efficiency and reduced cost. The reversing transmission is stable, and the precision and quality are guaranteed. DRAWING DESCRIPTION
[0007] Figure 1 is the structure schematic view of the utility model;
[0008] Figure 2 is the structure schematic view of the utility model;
[0009] Figure 3 is Figure 2 an A-A sectional view;
[0010] marked in the figure:
[0011] 1 large clamping plate, 2 small clamping plate, 3 support column, 4 reversing gear piece one, 5 reversing gear piece two, 6 ball head arbor, 7 reversing gear cover, 8 reversing pointer shaft, 9 hairspring. DETAILED DESCRIPTION
[0012] Example 1
[0013] The radial pressure type temperature table movement of the present example comprises a chamber composed of a large clamping plate 1, a small clamping plate 2, and two support columns 3, and further comprises a reversing pointer shaft 8, a reversing gear piece one 4, a reversing gear piece two 5, a reversing gear cover 7, a ball head arbor 6, and a hairspring 9 arranged in the chamber. The reversing pointer shaft 8 is freely rotatable at both ends in the holes of the large clamping plate 1 and the small clamping plate 2, the reversing gear piece one 4 is fixed on the reversing pointer shaft, the reversing gear piece two 5 is arranged in perpendicular engagement with the reversing gear piece one 4, the reversing gear piece two 5 is fixedly connected with the reversing gear cover 7 and the ball head arbor 6, and the ball head arbor 6 is freely rotatable in the hole of the bent portion of the large clamping plate. The outer end of the hairspring 9 arranged on the reversing pointer shaft 8 is fixed in the groove of the support column.
[0014] When the two reversing gear pieces are engaged in transmission, the hairspring generates reverse torque to eliminate transmission chain error. The key groove cover connected with the temperature carrier line is sleeved on the ball head of the ball head arbor, the temperature carrier line is affected by temperature to generate rotation, driving the ball head arbor to rotate together, the engagement transmission of the two reversing gear pieces in perpendicular engagement makes the pointer of the reversing pointer shaft indicate the reading.
Claims
1. A radial pressure thermometer movement, comprising a chamber consisting of a large plate (1), a small plate (2), and two support pillars (3), characterized in that: It also includes a reversing pointer shaft (8), a reversing gear plate one (4), a reversing gear plate two (5), a reversing gear sleeve (7), a ball head spindle (6), and a hairspring (9) installed in the chamber. The two ends of the reversing pointer shaft (8) can rotate freely in the holes of the large clamp plate (1) and the small clamp plate (2), respectively. The reversing gear plate one (4) is fixed on the reversing pointer shaft (8). The reversing gear plate two (5) is perpendicularly meshed with the reversing gear plate one (4). The reversing gear plate two (5) is fixedly connected to the reversing gear sleeve (7) and the ball head spindle (6). The ball head spindle (6) can rotate freely in the holes of the bent parts at both ends of the large clamp plate (1).
2. In the radial pressure thermometer movement according to claim 1, the outer end of the hairspring (9) set on the reversing pointer shaft (8) is fixed in the groove of the support column (3).