阅读说明：本技术 受限空间用力矩扳手 (Torque wrench for limited space ) 是由 牟杨 赵冬冬 蒋勇 卢祺 刘伟 王运喜 刘可燃 于 2019-11-18 设计创作，主要内容包括：本公开属于核电维修技术领域,具体涉及一种受限空间用力矩扳手。受限空间用力矩扳手包括：施加力矩端插头、转向机构和螺栓端力矩插头杆,受限空间用力矩扳手还包括壳体；转向机构包括第一传动杆和转向部件；施加力矩插头与第一传动杆的一端连接,第一传动杆的另一端与转向部件连接,转向部件与螺栓端力矩插头连接；施加力矩插头被转动的情况下,能够带动第一传动杆朝第一方向转动,转向部件在第一传动杆的驱动下能够带动螺栓端力矩插头朝第二方向转动,第一方向和第二方向之间呈90度。本公开实施例能够有效确保处理螺栓的力矩达到相应要求,减少外漏事件的发生。(The utility model belongs to the technical field of nuclear power maintenance, concretely relates to torque wrench for limited space. The limited space torque wrench comprises: the torque wrench comprises a torque applying end plug, a steering mechanism, a bolt end torque plug rod and a shell, wherein the torque applying end plug, the steering mechanism and the bolt end torque plug rod are arranged in the shell; the steering mechanism comprises a first transmission rod and a steering component; the torque applying plug is connected with one end of the first transmission rod, the other end of the first transmission rod is connected with the steering component, and the steering component is connected with the torque plug at the bolt end; under the condition that the moment plug is exerted and is rotated, can drive first transfer line and rotate towards the first direction, turn to the part and can drive bolt end moment plug and rotate towards the second direction under the drive of first transfer line, be 90 degrees between first direction and the second direction. The embodiment of the disclosure can effectively ensure that the torque of the processing bolt meets the corresponding requirements, and reduce the occurrence of leakage events.)

1. A torque wrench for a confined space, comprising: a torque application end plug, a steering mechanism and a bolt end torque plug;

the steering mechanism comprises a first transmission rod and a steering component;

the torque applying plug is connected with one end of the first transmission rod, the other end of the first transmission rod is connected with the steering component, and the steering component is connected with the torque plug at the bolt end;

under the condition that the torque application plug is rotated, the first transmission rod can be driven to rotate towards the first direction, the steering component can drive the bolt end torque plug to rotate towards the second direction under the driving of the first transmission rod, and the first direction and the second direction are 90 degrees.

2. The confined space torque wrench of claim 1, wherein the steering member includes a first gear, a second drive link, the confined space torque wrench further comprising a housing;

the first gear is fixedly connected with the other end of the first transmission rod, the second gear is meshed with the first gear, and the second gear is fixedly connected with one end of the second transmission rod;

the other end of the second transmission rod is limited in the shell through a bearing;

when the first gear rotates towards a first direction, the second gear and the second transmission rod are driven to rotate towards a second direction, and an angle of 90 degrees is formed between the first direction and the second direction.

3. The limited space torque wrench of claim 2, wherein the first drive rod is defined within the housing by a bearing.

4. The limited space torque wrench of claims 2 or 3, wherein the bearing is a deep groove ball bearing.

5. The confined space torque wrench of claim 2, wherein the first gear and the second gear are bevel gears.

6. The confined space torque wrench of claim 1, further comprising: an operating lever;

the operating rod is connected with the torque application plug and used for rotating the torque application plug.

7. The confined space torque wrench of claim 1, further comprising: a sleeve;

the torque plug at the bolt end is connected with one end of the sleeve, and the other end of the sleeve is connected with a bolt to be processed.

8. The torque wrench for a limited space according to claim 3, wherein the first transmission rod is sleeved with a plurality of bearings.

Technical Field

The invention belongs to the technical field of nuclear power maintenance, and particularly relates to a torque wrench for a limited space.

Background

The nuclear power plant anti-seismic support is more, the bolt torque of more valves or other equipment has accurate torque requirements, and due to the limited space and the interference of various supports, the accurate control cannot be achieved in operation, so that the leakage event is caused. The leakage can cause shutdown, shutdown and back defense, and the loss is huge. Therefore, how to accurately control the bolt torque in a limited space becomes an urgent problem to be solved.

Disclosure of Invention

To overcome the problems in the related art, a torque wrench with a limited space is provided.

According to an aspect of the embodiments of the present disclosure, there is provided a torque wrench for a limited space, including: the torque wrench for the limited space further comprises a shell;

the steering mechanism comprises a first transmission rod and a steering component;

the torque applying plug is connected with one end of the first transmission rod, the other end of the first transmission rod is connected with the steering component, and the steering component is connected with the torque plug at the bolt end;

under the condition that the torque application plug is rotated, the first transmission rod can be driven to rotate towards the first direction, the steering component can drive the bolt end torque plug to rotate towards the second direction under the driving of the first transmission rod, and the first direction and the second direction are 90 degrees.

In one possible implementation, the steering component includes a first gear, a second transmission rod, and the limited space torque wrench further includes a housing;

the first gear is fixedly connected with the other end of the first transmission rod, the second gear is meshed with the first gear, and the second gear is fixedly connected with one end of the second transmission rod;

the other end of the second transmission rod is limited in the shell through a bearing;

when the first gear rotates towards a first direction, the second gear and the second transmission rod are driven to rotate towards a second direction, and an angle of 90 degrees is formed between the first direction and the second direction.

In one possible implementation, the first transmission rod is defined within the housing by a bearing.

In one possible implementation, the bearing is a deep groove ball bearing.

In one possible implementation, the first gear and the second gear are bevel gears.

In one possible implementation, the limited space torque wrench further comprises: an operating lever;

the operating rod is connected with the torque application plug and used for rotating the torque application plug.

In one possible implementation, the limited space torque wrench further comprises: a sleeve;

the torque plug at the bolt end is connected with one end of the sleeve, and the other end of the sleeve is connected with a bolt to be processed.

In a possible implementation manner, the first transmission rod is sleeved with a plurality of bearings.

The invention has the beneficial effects that: in the embodiment of the disclosure, the maintainer only needs to apply the moment end plug towards the rotation of first direction, can be through steering mechanism's conduction, and the drive bolt end moment plug will be rotatory towards the second direction that is 90 degrees with the first direction contained angle to can make the maintainer less receive the restriction in pending part space, effectively ensure that the moment of handling the bolt reaches corresponding requirement, reduce the emergence of outer leakage incident.

Drawings

FIG. 1 is a schematic diagram illustrating a torque wrench for a confined space in accordance with an exemplary embodiment.

FIG. 2 is a schematic diagram illustrating a torque wrench for a confined space in accordance with an exemplary embodiment.

Detailed Description

The invention is described in further detail below with reference to the figures and the embodiments.

FIG. 1 is a schematic diagram illustrating a torque wrench for a confined space in accordance with an exemplary embodiment.

FIG. 2 is a schematic diagram illustrating a torque wrench for a confined space in accordance with an exemplary embodiment. As shown in fig. 1 and 2, the torque wrench for a limited space may include: a moment-applying end plug 102, a steering mechanism 103 and a bolt-end moment plug 104; the steering mechanism 103 may include a first drive rod 202 and a steering member; the apply torque plug may be coupled to one end of the first drive rod 202, the other end of the first drive rod 202 coupled to a steering member coupled to the bolt-end torque plug 104; under the condition that the torque application plug is rotated, the first transmission rod 202 can be driven to rotate towards the first direction, the turning component can drive the bolt end torque plug 104 to rotate towards the second direction under the driving of the first transmission rod 202, and an angle of 90 degrees is formed between the first direction and the second direction.

For example, the steering component may include a first gear 204, a second gear 205, a second drive rod 207, the limited space torque wrench may further include a housing 209; the steering may be disposed within the first housing 209 and the torque application end plug 102 and the bolt end torque plug 104 may be exposed out of the housing 209, respectively. The first gear 204 may be fixedly connected to the other end of the first transmission rod 202 (wherein, the first gear 204 may be pin-connected or key-connected to the other end of the first transmission rod 202, for example, the first gear 204 and the first transmission rod 202 may be respectively provided with a groove, a key 208 may be disposed in a space formed by the first gear 204 and the groove of the first transmission rod 202, so as to realize the key-connection of the first gear 204 and the first transmission rod 202, and in the embodiment of the present disclosure, the fixed connection manner of the gear and the connecting rod is not limited), the second gear 205 may be engaged with the first gear 204, and the second gear 205 may be fixedly connected to one end of the second transmission rod 207 (for example, the second gear 205 may be pin-connected or key-connected to one end of the second transmission rod 207); the other end of the second transmission rod 207 can be limited in the housing 209 by a bearing 201, wherein the bearing 201 can be fixedly connected to the inner wall of the housing 209, the other end of the second transmission rod 207 can be inserted into the bearing 201, when the first gear 204 rotates in the first direction, the second gear 205 and the second transmission rod 207 can be driven to rotate in the second direction, and an angle of 90 degrees can be formed between the first direction and the second direction.

In a possible implementation manner, the steering component may also include a plurality of gears, and the plurality of gears may cooperate with each other to drive the bolt-end torque plug 104 to rotate in a second direction forming an angle of 90 degrees with the first direction under the condition that the torque plug is applied to rotate in the first direction.

In the embodiment of the disclosure, the maintainer only needs to rotate towards the first direction to apply the torque end plug 102, and then the torque end plug 104 is driven to rotate towards the second direction which forms a 90-degree included angle with the first direction through the conduction of the steering mechanism 103, so that the maintainer is less limited by the space of the part to be processed, the torque of the processing bolt is effectively ensured to reach the corresponding requirement, and the occurrence of the leakage event is reduced.

In one possible implementation, first drive rod 202 may be defined within housing 209 by bearing 201. For example, the portion of the housing 209 located on the first transmission rod 202 may be tubular, one or more bearings 201 may be sleeved on the first transmission rod 202, and the one or more bearings 201 may be fixedly connected to the housing 209, so that the resistance received by the first transmission rod 202 in the rotation process may be reduced, which is beneficial for a maintenance worker to smoothly rotate the first transmission rod.

In one possible implementation, the bearing 201 is a deep groove ball bearing 201. The first gear 204 and the second gear 205 are bevel gears. It should be noted that any type of bearing 201 and gear may be selected according to the needs, and the type of the bearing 201 and the gear is not limited in the embodiment of the present disclosure.

In one possible implementation, the limited space torque wrench further comprises: an operating lever 101; the lever 101 may be coupled to the torque application plug for rotating the torque application plug. Like this, can further assist maintainer operation spanner, labour saving and time saving.

In one possible implementation, the limited space torque wrench may further include: a sleeve 105; the bolt-end torque plug 104 is connected to one end of a sleeve 105, and the other end of the sleeve 105 is connected to the bolt to be treated. Therefore, different types of sleeves 105 can be selected according to the size of the bolt to be processed, and different overhauling scenes can be flexibly adapted.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.