CN216830551U

CN216830551U - Fixing tool for assembling boron-coated gas detector

Info

Publication number: CN216830551U
Application number: CN202121417104.4U
Authority: CN
Inventors: 黄光勋; 武文超; 周治江; 刘开弟; 周震宇; 王军成; 傅源杰; 胡文琪; 符常兵; 吴超
Original assignee: Nuclear Power Institute of China
Current assignee: Nuclear Power Institute of China
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-06-28
Anticipated expiration: 2031-06-24

Abstract

The utility model relates to a reactor neutron fluence rate measures technical field, concretely relates to fixed frock for scribbling boron gas detector assembly, including the fixed station for press from both sides tight spare part, still include drive assembly, drive assembly connects the lead screw, and the lead screw overcoat has screw nut, and the lead screw runs through the movable plate, movable plate fixed connection screw nut, and the movable plate is connected to the fixed station, forms drive assembly drive lead screw and rotates, drives the structure that the movable plate made linear motion, still is equipped with rotary mechanism on the movable plate, and rotary mechanism is connected to the fixed station, and rotary mechanism can drive the fixed station rotatory. The movement and the rotation of parts can be realized through an automatic means, the position, the height or the angle can be adjusted without personnel, the assembly and the measurement of the size of the personnel are facilitated, the time and the labor are saved, and the operation convenience in the assembly process is improved.

Description

Fixing tool for assembling boron-coated gas detector

Technical Field

The utility model relates to a reactor neutron fluence rate measures technical field, concretely relates to a fixed frock for scribbling boron gas detector assembly.

Background

The boron-coated gas detector is used for measuring the neutron fluence rate of a nuclear reactor, converts the neutron fluence rate of the reactor into a current signal or a pulse signal, inputs the current signal or the pulse signal into a reactor power measuring system, a power protection system and a power regulating system, and outputs the current signal or the pulse signal through the measuring detector so as to realize the measurement of the reactor power. The assembly of the detector directly affects the electrical, nuclear and service life of the detector. In the assembly process of the existing detector, parts are usually placed on a fixed tool, and because the positions, angles and heights of different parts to be installed are different, personnel need to continuously change the heights and positions of the personnel to complete assembly, so that time and labor are wasted, the detector is very inconvenient, and the sizes of the parts need to be measured.

In order to facilitate the assembly and size measurement of detector parts, the lifting and the rotation of the parts need to be realized in the current assembly process, and the existing fixing tool cannot meet the requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixed frock for scribbling boron gas detector assembly, solve current detector at assembly and measurement process, because fixed frock can not go up and down, rotatory, can't satisfy the technical problem to co-altitude, angle and position adjustment demand.

The utility model discloses a following technical scheme realizes: the movable plate clamping mechanism comprises a fixed table and is used for clamping parts and a driving assembly, wherein the driving assembly is connected with a lead screw, a lead screw nut is sleeved outside the lead screw, the lead screw penetrates through the movable plate, the movable plate is fixedly connected with the lead screw nut, the fixed table is connected with the movable plate to form the driving assembly for driving the lead screw to rotate and drive the movable plate to be in a linear motion structure, a rotating mechanism is further arranged on the movable plate, the fixed table is connected with the rotating mechanism, and the rotating mechanism can drive the fixed table to rotate.

In a further scheme, the moving plate is connected with a plurality of guide rods, each guide rod penetrates through the moving plate, and each guide rod is fixedly connected with an assembly frame.

According to the technical scheme, the assembly frame is composed of a base, a bottom plate, a top plate and enclosing plates, the bottom plate is fixed on the base, the driving assembly is fixed on one surface, far away from the base, of the bottom plate, one end of each guide rod is connected with the bottom plate, the other end of each guide rod is connected with the top plate, one end, far away from the driving assembly, of each lead screw is rotatably connected with the top plate, and two ends of the three enclosing plates are respectively connected with the bottom plate and the top plate to form an enclosing space structure with one open surface.

Further, the rotating mechanism comprises a rotating shaft, a turbine and a worm, a first fixing seat is fixed on the moving plate, the rotating shaft is in running fit with the first fixing seat, the turbine is sleeved outside the rotating shaft, the worm is matched with the turbine, two ends of the worm penetrate through a supporting ring (10) arranged on the moving plate, and the end of the rotating shaft is fixed on the fixing table.

Further, a hand wheel is fixedly arranged at the end part of the scroll rod.

In a further scheme, a second fixed seat is further arranged on the moving plate, and one end, far away from the fixed table, of the rotating shaft is in running fit with the second fixed seat.

In a further scheme, bearings are arranged in the first fixing seat and the second fixing seat, and the rotating shaft penetrates through the bearings.

In a further scheme, the fixed station adopts a three-jaw chuck.

In a further scheme, the driving assembly is composed of a motor and two bevel gears which are meshed with each other, one bevel gear is connected with the motor, and the other bevel gear is connected with the screw rod.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

(1) the utility model discloses a set up fixed station, drive assembly, lead screw, screw nut, the movable plate that presss from both sides tight spare part, drive assembly can drive the lead screw rotates, and then drives linear motion is made to the movable plate to drive the spare part shift position on the fixed station, can realize the removal of spare part through automatic means, do not need personnel's adjustment position, height or angle, make things convenient for personnel's assembly, measurement size, labour saving and time saving.

(2) Through setting up a plurality of guide bars, ensure the stability of moving plate moving path to for the whole device provides the supporting role.

(3) Set up first fixing base, second fixing base, turbine, scroll bar, pivot, form rotary mechanism, can drive the rotation of fixed station, the upgrading of cooperation fixed station further improves automatic level, makes things convenient for personnel's assembly, measures size, labour saving and time saving.

(4) And a hand wheel is arranged, so that the operation is more convenient, and the strength is saved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of the present invention.

In the drawings: the device comprises a fixed table 1, a motor 201, a bevel gear 202, a lead screw 3, a lead screw nut 4, a moving plate 5, a rotating shaft 601, a turbine 602, a worm 603, a guide rod 7, a base 801, a bottom plate 802, a top plate 803, a coaming 804, a first fixed seat 9, a support ring 10, a hand wheel 11 and a second fixed seat 12.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1:

a fixing tool for assembling a boron-coated gas detector comprises a fixing table 1, parts are fixed on the fixing table 1, the fixing tool further comprises a driving assembly, the driving assembly is connected with a lead screw 3 and can drive the lead screw 3 to rotate, the driving assembly can be a single power device such as a speed reducing motor 201 or a power reversing mechanism formed by assembling a plurality of components, for example, the driving assembly is a common power reversing mechanism formed by matching a single motor 201 with two meshed bevel gears 202, one bevel gear 202 is connected with the motor 201, the other bevel gear 202 is connected with the lead screw 3, and the two bevel gears 202 are meshed. Of course, the power mechanism or the power reversing mechanism formed by other different components or a plurality of components can be adopted, and the details are not described herein. In this embodiment, it is preferable that the motor 201 and the two engaged bevel gears 202 are used to realize steering, so as to drive the screw rod 3 to rotate. The screw 3 is externally sleeved with a screw nut 4 matched with the screw 3, one end of the screw 3, which is far away from the speed reduction motor 201, penetrates through the moving plate 5, the moving plate 5 is fixedly connected with the screw nut 4, the moving plate 5 can be sleeved outside the screw nut 4, and can also be fixedly connected to the end of the screw nut 4, and in this embodiment, the moving plate 5 is preferably fixedly sleeved outside the screw nut 4. The fixed table 1 is disposed on the moving plate 5, and those skilled in the art should understand that the fixed table 1 may be directly connected to the moving plate 5, or may be connected to the moving plate through other parts at intervals, as long as it is ensured that the position change of the moving plate 5 can directly or indirectly drive the fixed table 1 to change synchronously. The driving assembly drives the screw rod 3 to rotate, and the screw rod rotates to cause the screw rod nut 4 to move along the screw rod 3 due to the fact that the position of the screw rod 3 is fixed, and then the moving plate 5 and the fixed table 1 are driven to do linear motion.

Those skilled in the art should understand that the driving assembly can be placed on a supporting platform, which can be a ground, an assembly frame, a supporting body, etc., the lead screw 3 can be placed horizontally, vertically, or obliquely in cooperation with the driving assembly, and correspondingly, the movable plate 5, the fixed table 1 and the extending direction of the lead screw 3 are in cooperation, and can perform linear motion along the lead screw 3 in horizontal direction, vertical direction, oblique upward direction, oblique downward direction. In order to ensure the stability of the device, a support member may be connected to an end of the screw rod 3 away from the driving assembly, and the structure and the placement position of the support member may be set as required.

Example 2:

on the basis of the embodiment 1, the further scheme is as follows: the moving plate 5 is connected with a plurality of guide rods 7, the number of the guide rods 7 can be 2, 3, 4 and the like, in the embodiment, 4 guide rods 7 are preferably arranged, each guide rod 7 penetrates through the moving plate 5, the moving plate 5 can move relative to each guide rod 7, and each guide rod 7 is fixedly connected with a mounting bracket. The assembly jig comprises a base 801, a bottom plate 802, a top plate 803 and enclosing plates 804, wherein the bottom plate 802 is fixedly connected to the base 801, a driving assembly is fixedly placed on one surface, far away from the base 801, of the bottom plate 802, one end of each guide rod 7 is fixedly connected with the bottom plate 802, the other end of each guide rod 7 is fixedly connected with the top plate 803, one end, far away from the driving assembly, of each lead screw 3 is rotatably connected with the top plate 803, three enclosing plates 804 are further arranged, two ends of each enclosing plate 804 are respectively fixedly connected with the bottom plate 802 and the top plate 803, the bottom plate 802 and the enclosing plates 804 jointly form an enclosed space structure with one opening.

Specifically, the fixed connection and the rotational connection may be set by using a common connection method, for example, in this embodiment, each guide rod 7 may be fixedly connected to the bottom plate 802 and the top plate 803 by using a bolt connection method, the bottom plate 802 may be connected to the base 801 by using a welding method, each enclosure 804 may be connected to the bottom plate 802 and the top plate 803 by using a welding method, 4 through holes may be formed in the moving plate 5, a linear bearing is fixedly embedded in the through holes, and the center of the linear bearing passes through the guide rod 7, so that the moving plate 5 moves along the guide rod 7; a bearing may be fixedly disposed on the top plate 803, and the lead screw 3 is connected to the bearing, so as to realize the rotational connection between the lead screw 3 and the top plate 803.

In this embodiment, the assembly jig can be placed subaerial, and vertical the placing, and the vertical setting of each guide bar 7, correspondingly lead screw 3 is vertical to be placed, and movable plate 5 reciprocates along lead screw 3, drives the lift of fixed station 1.

Example 3:

on the basis of the embodiment 1 or the embodiment 2, the further scheme is as follows: the movable plate 5 is fixed with a first fixed seat 9 and a second fixed seat 12, the rotating mechanism comprises a rotating shaft 601, a turbine 602 and a worm 603, the rotating shaft 601 is rotatably matched with the first fixed seat 9 and the second fixed seat 12, bearings can be fixedly arranged in the first fixed seat 9 and the second fixed seat 12, two ends of the rotating shaft 601 are connected with the bearings, one end of the rotating shaft 601 far away from the first fixed seat 9 penetrates through the second fixed seat 12 and extends outwards, the turbine 602 is arranged outside the rotating shaft 601, the worm 603 is matched with the turbine 602, two ends of the worm 603 penetrate through a support ring 10 arranged on the movable plate 5, the support rings 10 are symmetrically arranged on two sides of the rotating shaft 601, a hand wheel 11 is fixedly arranged at the end of the worm 603, and the end of the rotating shaft 601 is fixedly connected with the fixed table 1.

Example 4:

on the basis of embodiments 2 and 3, the hand wheel 11 and the fixed station 1 are both located outside the assembly frame, one end of the rotating shaft 601 and one end of the scroll 603 both extend to the outside of the assembly frame, the fixed station 1 is connected with a connecting rod, the connecting rod is vertically connected with the rotating shaft 601, and the rotating shaft 601 and the connecting rod form an L-shaped structure. The fixed station 1 adopts a three-jaw chuck, and a three-jaw clamp on the three-jaw chuck realizes the fixation of parts.

The hand wheel 11 is rotated to drive the worm 603 to rotate, and the worm 603 cooperates with the worm wheel 602 to drive the rotating shaft 601 to rotate, so as to drive the fixing table 1 to rotate.

The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a fixed frock for scribbling boron gas detector assembly, includes fixed station (1) for press from both sides tight spare part, its characterized in that: still include drive assembly, drive assembly connects lead screw (3), lead screw (3) overcoat has screw nut (4), movable plate (5) is run through in lead screw (3), movable plate (5) fixed connection screw nut (4), fixed station (1) is connected movable plate (5) forms the drive assembly drive lead screw (3) rotate the drive movable plate (5) are made linear motion's structure, still be equipped with rotary mechanism on movable plate (5), fixed station (1) are connected rotary mechanism, rotary mechanism can drive fixed station (1) is rotatory.

2. The fixing tool for assembling the boron-coated gas detector according to claim 1, characterized in that: the movable plate (5) is connected with a plurality of guide rods (7), each guide rod (7) penetrates through the movable plate (5), and each guide rod (7) is fixedly connected with an assembly frame.

3. The fixing tool for assembling the boron-coated gas detector according to claim 2, characterized in that: the assembly jig is composed of a base (801), a bottom plate (802), a top plate (803) and enclosing plates (804), wherein the bottom plate (802) is fixed on the base (801), a driving assembly is fixed on the surface, away from the base (801), of the bottom plate (802), the other end of the guide rod (7) is connected with the bottom plate (802) and the other end of the guide rod (803), the screw rod (3) is far away from the driving assembly, one end of the driving assembly is rotatably connected with the top plate (803), and the two ends of the enclosing plates (804) are respectively connected with the bottom plate (802) and the top plate (803) to form an enclosing space structure with one open side.

4. The fixing tool for assembling the boron-coated gas detector according to claim 1, characterized in that: the rotating mechanism comprises a rotating shaft (601), a turbine (602) and a worm rod (603), a first fixing seat (9) is fixed on the moving plate (5), the rotating shaft (601) is in running fit with the first fixing seat (9), the turbine (602) is sleeved outside the rotating shaft (601), the worm rod (603) is matched with the turbine (602), two ends of the worm rod (603) penetrate through a support ring (10) arranged on the moving plate (5), and the end of the rotating shaft (601) is fixed on the fixing table (1).

5. The fixing tool for assembling the boron-coated gas detector according to claim 4, characterized in that: a hand wheel (11) is fixedly arranged at the end part of the scroll rod (603).

6. The fixing tool for assembling the boron-coated gas detector according to claim 4, characterized in that: the movable plate (5) is further provided with a second fixed seat (12), and one end, far away from the fixed table (1), of the rotating shaft (601) is in running fit with the second fixed seat (12).

7. The fixing tool for assembling the boron-coated gas detector according to claim 6, characterized in that: bearings are arranged in the first fixing seat (9) and the second fixing seat (12), and the rotating shaft (601) penetrates through the bearings.

8. The fixing tool for assembling the boron-coated gas detector according to claim 1, characterized in that: the fixed table (1) adopts a three-jaw chuck.

9. The fixing tool for assembling the boron-coated gas detector according to claim 1, characterized in that: the driving assembly is composed of a motor (201) and two bevel gears (202) which are meshed with each other, one bevel gear (202) is connected with the motor (201), and the other bevel gear (202) is connected with the lead screw (3).