A kind of transmission chain strength test sphere fixing tool

Abstract

The utility model discloses a kind of transmission chain strength test spherical body fixed tool, including stick body component and sphere, sphere is sleeved in stick body component outside, stick body component includes round bar, two limit parts are slidably sleeved in the outside of round bar, ball body limiting plate and fixer are slidably inserted in the both ends of round bar, ball body limiting plate both sides are respectively contacted with limit part and fixer, the both ends of fixer are inserted with fastener, the both ends of sphere are respectively abutted in two ball body limiting plates, and two-way screw rod is installed in through bearing in through slot;The utility model is collaboratively designed through round bar and the limit part of slidably sleeved, ball body limiting plate and fixer, tool only needs to provide partial support in the both ends of sphere, without filling entire valve passage, the structure greatly reduces material consumption, simultaneously realizes quick disassembly and assembly by slidably sleeving, significantly reduces manufacturing cost and maintenance complexity, directly solve the core problem of material waste, high cost.

Description

Technical Field

[0001] This utility model relates to the field of valve testing technology, specifically to a ball fixing fixture for testing the strength of a transmission chain. Background Technology

[0002] Valve strength testing is a crucial step in valve pressure testing, requiring the use of fixed fixtures to simulate actual operating conditions. During testing, a specialized fixture must be used to secure the ball valve, ensuring a tight seal between the valve body and the pipeline connection, simulating the actual installation state. The fixture must be equipped with pressure and instrument interfaces, capable of withstanding pressures multiple times the nominal pressure. Water, air, or nitrogen is selected based on the valve's application, with water being the most commonly used medium. For gaseous media, explosion-proof requirements must be considered.

[0003] For example, a ball valve testing fixture with application number CN201620125742.1 and authorization announcement date of 20160706 includes a ball valve, which has a medium inlet, a medium outlet, and a vent. The testing fixture also includes a first pipe, a second pipe, and a leakage testing assembly. The first pipe is connected to the medium inlet, the second pipe is connected to the medium outlet, and the leakage testing assembly is connected to the vent. A thermocouple is installed in the first pipe, and the thermocouple is connected to a detection instrument for detecting temperature. The thermocouple is located at the medium inlet. The beneficial effect of this utility model is that the testing fixture facilitates three-step cyclic testing of the ball valve at room temperature, high temperature, and low temperature.

[0004] However, when conducting drivetrain strength tests on ball valves, especially in scenarios where it is necessary to fix the ball to prevent it from rotating or moving during the test, the commonly used fixing fixtures in the prior art are often designed to fill or occupy the entire valve passage. Although this design can achieve the purpose of fixing, it has significant drawbacks: on the one hand, the large amount of material used to manufacture the fixture structure that occupies the passage space results in unnecessary material waste; on the other hand, this complex and bulky fixture also leads to a significant increase in manufacturing and maintenance costs. Therefore, it is urgent to design a drivetrain strength test ball fixing fixture to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a sphere fixing fixture for testing the strength of a transmission chain, so as to solve the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A sphere fixing fixture for a transmission chain strength test includes a rod assembly and a sphere. The sphere is sleeved on the outside of the rod assembly. The rod assembly includes a round rod. Two limiting members are slidably sleeved on the outside of the round rod. A sphere limiting plate and a fixing device are slidably inserted into each end of the round rod. The two sides of the sphere limiting plate are in contact with the limiting members and the fixing device, respectively. Fasteners are inserted into both ends of the fixing device. The two ends of the sphere abut against the two sphere limiting plates, respectively.

[0008] Furthermore, a through groove is provided on one side of the round bar, and a bidirectional lead screw is installed in the through groove via a bearing.

[0009] Furthermore, a rotating bolt is mounted on one end of the round bar via a bearing, and the rotating bolt is coaxially connected to the bidirectional lead screw via a coupling.

[0010] Furthermore, the limiting component includes a connecting rod and a ring sleeve. The connecting rod is slidably inserted into the through groove, and a threaded hole is provided on one side of the connecting rod for threaded connection with a bidirectional lead screw.

[0011] Furthermore, the ring is fixed to both ends of the connecting rod by bolts, and the ring is slidably sleeved on the outer circumference of the round bar.

[0012] In the above technical solution, the present invention provides a sphere fixing fixture for testing the strength of a transmission chain, which has the following advantages:

[0013] This utility model, through the coordinated design of the limiting component with the round bar and the sliding sleeve, the ball limiting plate and the fixing device, the tooling only needs to provide local support at both ends of the ball, without filling the entire valve channel. This structure greatly reduces the amount of material used, and at the same time, the sliding sleeve enables quick assembly and disassembly, significantly reducing manufacturing costs and maintenance complexity, and directly solving the core problems of material waste and high cost.

[0014] The linkage design of the bidirectional lead screw and rotating bolt of this utility model can synchronously control the symmetrical movement of the limiters on both sides by manual rotation, ensuring that the ball is subjected to uniform force. Compared with traditional tooling, it avoids the risk of ball deflection caused by unilateral pressure, greatly improves test stability, and can be adapted to balls of different sizes. It also reduces the steps of clamping and fixing the ball with tooling, and greatly reduces the time spent using tooling to fix the ball. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1This is a schematic diagram of the overall structure of an embodiment of a transmission chain strength testing sphere fixing fixture of this utility model.

[0017] Figure 2 This is a schematic diagram of the rod assembly structure provided in an embodiment of a transmission chain strength test sphere fixing fixture of this utility model.

[0018] Figure 3 This is a schematic diagram of the planar structure of the rod assembly provided in an embodiment of the transmission chain strength test sphere fixing fixture of this utility model.

[0019] Figure 4 This is a schematic diagram of a round bar and a bidirectional lead screw structure provided for an embodiment of a sphere fixing fixture for a transmission chain strength test according to this utility model.

[0020] Figure 5 This is a schematic diagram of the limiting component structure provided in an embodiment of a transmission chain strength test sphere fixing fixture of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Rod assembly; 2. Sphere; 3. Round bar; 4. Limiting component; 5. Sphere limiting plate; 6. Fixer; 7. Through slot; 8. Two-way lead screw; 9. Fastener; 10. Rotary bolt; 11. Ring; 12. Connecting rod; 13. Threaded hole. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-5 As shown in the figure, the present invention provides a transmission chain strength test ball fixing fixture, including a rod assembly 1 and a ball 2. The ball 2 is sleeved on the outside of the rod assembly 1. The rod assembly 1 includes a round rod 3. Two limiting members 4 are slidably sleeved on the outside of the round rod 3. Ball limiting plates 5 and fixers 6 are slidably inserted at both ends of the round rod 3. The two sides of the ball limiting plates 5 are in contact with the limiting members 4 and the fixers 6 respectively. Fasteners 9 are inserted at both ends of the fixers 6. The two ends of the ball 2 abut against the two ball limiting plates 5 respectively.

[0025] Specifically, in this embodiment, it includes a rod assembly 1 and a sphere 2. The rod assembly 1 consists of a round rod 3, limiting members 4, a sphere limiting plate 5, and a fixing device 6, and is the core structure for supporting and adjusting the position of the sphere. The sphere 2 is sleeved on the outside of the rod assembly 1. The rod assembly 1 includes a round rod 3, with two limiting members 4 slidably sleeved on the outside of the round rod 3. A sphere limiting plate 5 and a fixing device 6 are slidably inserted into each end of the round rod 3. The two sides of the sphere limiting plate 5 contact the limiting members 4 and the fixing device 6, respectively. A clamping device is inserted into each end of the fixing device 6. The retainer 9 is used to insert the round rod 3 into the channel of the sphere 2 in the open state, so that the sphere 2 is sleeved on the outside of the round rod 3. The two sphere limiting plates 5 are pre-slidably sleeved on both ends of the round rod 3. Then, the two sphere limiting plates 5 are pushed so that the two sphere limiting plates 5 abut against both ends of the sphere 2. Then, the retainer 6 is installed so that the retainer 6 abuts against the other end of the sphere limiting plate 5. Then, the retainer 9 is used to lock the retainer 6 to limit the sphere limiting plate 5. Both ends of the sphere 2 abut against the two sphere limiting plates 5 respectively.

[0026] This utility model provides a ball fixing fixture for a transmission chain strength test. Through the coordinated design of the round bar 3, the sliding sleeve limiting member 4, the ball limiting plate 5, and the fixing device 6, the fixture only needs to provide local support at both ends of the ball 2, without filling the entire valve channel. This structure greatly reduces the amount of material used. At the same time, the sliding sleeve enables quick assembly and disassembly, significantly reducing manufacturing costs and maintenance complexity, and directly solving the core problems of material waste and high cost.

[0027] In one embodiment provided by this utility model, such as Figure 4-5 As shown, a through groove 7 is provided on one side of the round bar 3, and a bidirectional lead screw 8 is installed in the through groove 7 via a bearing. The connecting rod 12 is an adjusting component that slides in the through groove 7. The connecting rod 12 is made of the same material as the round bar 3, and its length must match the through groove 7. A rotating bolt 10 is installed at one end of the round bar 3 via a bearing, and the rotating bolt 10 is coaxially connected to the bidirectional lead screw 8 via a coupling. The limiting component 4 includes the connecting rod 12 and a ring 11. Rotating the rotating bolt 10 causes the bidirectional lead screw 8 to rotate via the coupling. The thread of the bidirectional lead screw 8 is connected to the limiting component 4. The threaded hole 13 on the connecting rod 12 of the positioning member 4 engages, causing the two limiting members 4 to move synchronously and symmetrically along the through groove 7. The ring 11 of the limiting member 4 slides along the round bar 3, pushing the ball limiting plate 5 to move towards the end face of the ball 2, so that the two limiting members 4 abut against the other side of the two ball limiting plates 5. The connecting rod 12 is slidably inserted into the through groove 7, and a threaded hole 13 is opened on one side of the connecting rod 12 for threaded connection with the bidirectional lead screw 8. The ring 11 is fixed to both ends of the connecting rod 12 by bolts, and the ring 11 is slidably sleeved on the outer circumference of the round bar 3. Example

[0028] A sphere fixing fixture for a transmission chain strength test includes a rod assembly 1 and a sphere 2. The rod assembly 1 consists of a round rod 3, limiting members 4, a sphere limiting plate 5, and a fixture 6, and is the core structure for supporting and adjusting the position of the sphere. The sphere 2 is sleeved on the outside of the rod assembly 1. The rod assembly 1 includes a round rod 3, with two limiting members 4 slidably sleeved on the outside of the round rod 3. A sphere limiting plate 5 and a fixture 6 are slidably inserted into each end of the round rod 3. The two sides of the sphere limiting plate 5 contact the limiting members 4 and the fixture 6, respectively. The two ends of the fixture 6 are inserted into... With fastener 9 attached, the round rod 3 is inserted into the channel of the ball 2 in the open state, so that the ball 2 is sleeved on the outside of the round rod 3. The two ball limiting plates 5 are pre-slidably sleeved on both ends of the round rod 3. Then, the two ball limiting plates 5 are pushed so that the two ball limiting plates 5 abut against both ends of the ball 2. Then, the fixing device 6 is installed so that the fixing device 6 abuts against the other end of the ball limiting plate 5. Then, the fastener 9 is used to lock the fixing device 6 to limit the ball limiting plate 5. Both ends of the ball 2 abut against the two ball limiting plates 5 respectively. Example

[0029] This embodiment further defines the features of Embodiment 1. A through-groove 7 is formed on one side of the round bar 3, and a bidirectional lead screw 8 is mounted within the through-groove 7 via a bearing. An adjusting component, the connecting rod 12, slides within the through-groove 7; its material is the same as the round bar 3, and its length must match the through-groove 7. A rotating bolt 10 is mounted at one end of the round bar 3 via a bearing, and the rotating bolt 10 is coaxially connected to the bidirectional lead screw 8 via a coupling. The limiting component 4 includes the connecting rod 12 and a ring sleeve 11. Rotating the rotating bolt 10 causes the bidirectional lead screw 8 to rotate via the coupling. The thread of the bidirectional lead screw 8 engages with the threaded hole 13 on the connecting rod 12 of the limiting member 4, so that the two limiting members 4 move synchronously and symmetrically along the through groove 7. The ring 11 of the limiting member 4 slides along the round bar 3, pushing the ball limiting plate 5 to move towards the end face of the ball 2, so that the two limiting members 4 abut against the other side of the two ball limiting plates 5. The connecting rod 12 is slidably inserted into the through groove 7, and a threaded hole 13 is opened on one side of the connecting rod 12 for threaded connection with the bidirectional lead screw 8. The ring 11 is fixed to both ends of the connecting rod 12 by bolts, and the ring 11 is slidably sleeved on the outer circumference of the round bar 3.

[0030] Working principle: Insert the round bar 3 into the channel of the sphere 2 in the open state, so that the sphere 2 is sleeved on the outside of the round bar 3. Two sphere limiting plates 5 are pre-slidably sleeved on both ends of the round bar 3. Then push the two sphere limiting plates 5 so that the two sphere limiting plates 5 abut against both ends of the sphere 2. Then install the fixing device 6 so that the fixing device 6 abuts against the other end of the sphere limiting plate 5. Then use the fastener 9 to lock the fixing device 6 to limit the sphere limiting plate 5. Then rotate the rotating bolt 10. The rotating bolt 10 drives the double-acting screw 8 to rotate through the coupling. The thread of the double-acting screw 8 engages with the threaded hole 13 on the connecting rod 12 of the limiting member 4, so that the two limiting members 4 move synchronously and symmetrically along the through groove 7. The ring 11 of the limiting member 4 slides along the round bar 3, pushing the sphere limiting plate 5 to move towards the end face of the sphere 2, so that the two limiting members 4 abut against the other side of the two sphere limiting plates 5, completing the fixation of the sphere. It can then be placed in other equipment for testing.

[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A sphere fixing fixture for a transmission chain strength test, comprising a rod assembly (1) and a sphere (2), characterized in that: The sphere (2) is sleeved on the outside of the rod assembly (1). The rod assembly (1) includes a round rod (3). Two limiting members (4) are slidably sleeved on the outside of the round rod (3). A sphere limiting plate (5) and a fixing device (6) are slidably inserted at each end of the round rod (3). The two sides of the sphere limiting plate (5) are in contact with the limiting member (4) and the fixing device (6) respectively. Fasteners (9) are inserted at both ends of the fixing device (6). The two ends of the sphere (2) abut against the two sphere limiting plates (5) respectively.

2. The sphere fixing fixture for a transmission chain strength test according to claim 1, characterized in that, A through groove (7) is provided on one side of the round bar (3), and a bidirectional lead screw (8) is installed in the through groove (7) through a bearing.

3. The sphere fixing fixture for a transmission chain strength test according to claim 2, characterized in that, One end of the round bar (3) is fitted with a rotating bolt (10) via a bearing, and the rotating bolt (10) is coaxially connected to the double-acting screw (8) via a coupling.

4. The sphere fixing fixture for a transmission chain strength test according to claim 3, characterized in that, The limiting component (4) includes a connecting rod (12) and a ring (11). The connecting rod (12) is slidably inserted into the through groove (7), and a threaded hole (13) is provided on one side of the connecting rod (12) for threaded connection with the bidirectional lead screw (8).

5. The sphere fixing fixture for a transmission chain strength test according to claim 4, characterized in that, The ring sleeve (11) is fixed to both ends of the connecting rod (12) by bolts, and the ring sleeve (11) is slidably sleeved on the outer periphery of the round bar (3).

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