CN214276795U

CN214276795U - Pull rod type linear displacement sensor capable of sliding smoothly

Info

Publication number: CN214276795U
Application number: CN202120441518.4U
Authority: CN
Inventors: 胡驶宇
Original assignee: Ningbo Beilun Machine Electrics Co ltd
Current assignee: Ningbo Beilun Machine Electrics Co ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-09-24
Anticipated expiration: 2031-03-01

Abstract

The utility model provides a smooth and easy pull rod formula linear displacement sensor slides, include: the electric brush type motor comprises a shell, a pull rod is slidably mounted on the shell, one end of the pull rod is arranged in the shell, a sliding block assembly is arranged at one end of the pull rod and comprises a sliding block and an electric brush arranged on the sliding block, and an elastic part is arranged between the sliding block and the pull rod; the conductive plastic base body is fixedly arranged in the shell, a first sealing end cover is arranged at one end of the shell, a first shaft sleeve and a wool felt sleeve are arranged in the first sealing end cover, the first shaft sleeve and the wool felt sleeve are sleeved on the pull rod, and lubricating oil is soaked in the wool felt sleeve. The pull rod type linear displacement sensor which slides smoothly has simple structure and low production cost; an elastic piece is arranged between the sliding block and the pull rod, so that a buffering effect is achieved, the electric brush is prevented from shaking when sliding, and the measurement precision is guaranteed; the draw bar is provided with the shaft sleeve and the wool felt sleeve, so that the draw bar can slide smoothly.

Description

Pull rod type linear displacement sensor capable of sliding smoothly

Technical Field

The utility model relates to a displacement sensor field, in particular to smooth and easy pull rod formula linear displacement sensor slides.

Background

The displacement sensor is widely applied to occasions needing accurate displacement measurement, such as woodworking machinery, special machinery for injection molding machines, special machinery for plastic suction machines, printing machinery, medical equipment and instruments, position control of robots, engineering monitoring computer control movement mechanical systems and the like. The linear displacement sensor is based on the principle of a slide rheostat and converts mechanical displacement into an electric signal. The slide rheostat changes the resistance value through the displacement of the slide sheet on the slide rail, the two ends of the slide rheostat are connected with direct current voltage, small microampere current is allowed to pass, and the voltage between the slide sheet and the starting end is in direct proportion to the moving length of the slide sheet. Based on such a principle, the linear displacement sensor has high electromagnetic resistance.

In the existing pull rod type linear displacement sensors, an external power device drives a pull rod to slide at a constant speed, and the pull rod is subjected to factors such as external vibration, friction force and the like in the sliding process, so that the sliding is not smooth enough, and the measurement precision is reduced. In addition, because the sealing effect between the pull rod and the shell is poor, the interior of the product is easily influenced by factors such as environmental dust, noise, vibration, humidity and the like, so that the instability of a measuring result is directly caused, the measuring precision is low, the using effect is poor, and the service life is short.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The technical problem to be solved by the utility model is to provide a pull rod type linear displacement sensor with simple structure, smooth sliding and low production cost; the electric brush is not easy to shake when sliding, the pull rod slides smoothly, the sealing performance is good, and the measurement precision is high.

(II) technical scheme

In order to solve the technical problem, the utility model provides a smooth and easy pull rod formula linear displacement sensor slides, include: the device comprises a shell, a pull rod is slidably mounted on the shell, one end of the pull rod is arranged in the shell, a sliding block assembly is arranged at one end of the pull rod and comprises a sliding block and an electric brush arranged on the sliding block, an elastic part is arranged between the sliding block and the pull rod, the sliding block and the electric brush are prevented from shaking in the sliding process, the installation is more stable, and the measurement precision is high; a conductive plastic base body is fixedly arranged in the shell, the electric brush is arranged on one side of the conductive plastic base body and is in contact with the conductive plastic base body, and a first sealing end cover is arranged at one end of the shell, so that the sealing effect is good; the first sealing end cover is internally provided with a first shaft sleeve and a wool felt sleeve, the first shaft sleeve and the wool felt sleeve are sleeved on the pull rod, lubricating oil is infiltrated into the wool felt sleeve, the type of the lubricating oil can be selected according to requirements, aviation oil is adopted in the technical scheme, the lubricating effect is good, the pull rod can slide more smoothly, and the measuring precision is improved. When the device is used, an external power device drives the pull rod to slide at a constant speed, so that the electric brush is driven to slide on the surface of the conductive plastic matrix at a constant speed, and a linearly-changed analog signal is output. The pull rod type linear displacement sensor with smooth sliding of the utility model has the advantages that the pull rod is made of stainless steel, the surface of the pull rod is smooth, and the friction force can be reduced, so that the sliding is smoother; the structure is simple, and the production cost is low; an elastic piece is arranged between the sliding block and the pull rod, so that a buffering effect is achieved, the electric brush is prevented from shaking when sliding, and the measurement precision is guaranteed; the pull rod is provided with a shaft sleeve and a wool felt sleeve, so that the pull rod slides smoothly; a sealing ring is arranged between the second shaft sleeve and the first sealing end cover, so that the sealing effect is good, and the dustproof effect is good; the plug-in strip comprises a positive plug-in strip, a negative plug-in strip, a signal output plug-in strip and a grounding plug-in strip, so that a matched plug can be conveniently used for connecting a power supply and outputting an analog signal, and the use is convenient; one end of the pull rod, which is far away from the sliding block assembly, is a bolt rod, so that the pull rod can be conveniently connected with an external power device; the casing bottom is equipped with the fixed bolster, and the casing is equipped with the mounting groove that is used for installing the fixed bolster, and the user of being convenient for fixes the product.

Furthermore, the wool felt sleeve is arranged at the side end of the first shaft sleeve. And a second shaft sleeve is arranged in the first sealing end cover, sleeved on the outer sides of the first shaft sleeve and the wool felt sleeve, and is stably installed.

Further, the casing is kept away from first end cap one end is equipped with socket assembly, socket assembly includes second end cap and sets up plug connector on the second end cap, the plug connector pass through the wire with the conductive plastic base member is connected, plug connector supporting plug connection power of convenient to use and output analog signal, second end cap is sealed effectual, promotes the product protection nature, long service life.

Furthermore, the plug connector is a plug-in piece, the plug-in piece comprises a positive plug-in piece, a negative plug-in piece, a signal output plug-in piece and a grounding plug-in piece, the matched plug is convenient to use to connect a power supply and output an analog signal, and the use is convenient.

Furthermore, the plug connector is an aviation plug, so that the wiring is firm and the use is convenient.

Furthermore, first end cover is equipped with the end cover, the second shaft sleeve with be equipped with the sealing washer between the first end cover, sealed effect is good, and dustproof effectual.

Furthermore, the elastic part is a spring, one end of the spring is abutted against the sliding block, and the other end of the spring is abutted against the pull rod; the electric brush is riveted on the sliding block, and the electric brush is a hexabasic alloy electric brush and has good use effect.

Furthermore, one end of the pull rod, which is far away from the sliding block assembly, is a bolt rod, so that the pull rod can be conveniently connected with an external power device.

Furthermore, a fixing support is arranged at the bottom of the shell, and the shell is provided with a mounting groove for mounting the fixing support, so that a user can fix a product conveniently and the use is convenient; the pull rod is made of stainless steel, the surface of the pull rod is smooth, friction can be reduced, and sliding is smooth.

(III) advantageous effects

The pull rod type linear displacement sensor which slides smoothly has simple structure and low production cost; an elastic piece is arranged between the sliding block and the pull rod, so that a buffering effect is achieved, the electric brush is prevented from shaking when sliding, and the measurement precision is guaranteed; the pull rod is provided with a shaft sleeve and a wool felt sleeve, so that the pull rod slides smoothly; a sealing ring is arranged between the second shaft sleeve and the first sealing end cover, so that the sealing effect is good, and the dustproof effect is good; the plug-in strip comprises a positive plug-in strip, a negative plug-in strip, a signal output plug-in strip and a grounding plug-in strip, so that a matched plug can be conveniently used for connecting a power supply and outputting an analog signal, and the use is convenient; one end of the pull rod, which is far away from the sliding block assembly, is a bolt rod, so that the pull rod can be conveniently connected with an external power device; the bottom of the shell is provided with a fixed bracket, and the shell is provided with a mounting groove for mounting the fixed bracket, so that a user can fix a product conveniently and the use is convenient; the pull rod is made of stainless steel, the surface of the pull rod is smooth, friction can be reduced, and sliding is smooth.

Drawings

Fig. 1 is a partial cross-sectional view of a smoothly sliding pull rod type linear displacement sensor according to the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a top view of the pull rod type linear displacement sensor of the present invention sliding smoothly;

fig. 4 is a schematic structural view of the smoothly sliding insertion piece of the pull rod type linear displacement sensor of the present invention;

fig. 5 is a schematic structural view of a second embodiment of the smoothly sliding pull rod type linear displacement sensor of the present invention;

wherein: the connector comprises a shell 1, a pull rod 2, a slide block 3, an electric brush 4, a conductive plastic base 5, an elastic piece 6, a first sealing end cover 7, a first shaft sleeve 701, a wool felt sleeve 702, a second shaft sleeve 703, an end cover 704, a sealing ring 705, a socket assembly 8, a second sealing end cover 801, an anode plug sheet 802, a cathode plug sheet 803, a signal output plug sheet 804, a grounding plug sheet 805, an aviation plug 9, a fixed support 10 and a mounting groove 11.

Detailed Description

The first embodiment is as follows:

referring to fig. 1 to 4, an embodiment of the present invention provides a pull rod type linear displacement sensor that slides smoothly, including: the sliding block assembly comprises a sliding block 3 and an electric brush 4 arranged on the sliding block 3, an elastic piece 6 is arranged between the sliding block 3 and the pull rod 2, the elastic piece 6 is used for abutting against the fixed sliding block 3 and playing a buffering role, the sliding block 3 and the electric brush 4 are prevented from shaking in the sliding process, the installation is more stable, and the measurement precision is high; a conductive plastic base body 5 is fixedly arranged in the shell 1, the electric brush 4 is arranged on one side of the conductive plastic base body 5 and is in contact with the conductive plastic base body 5, and a first sealing end cover 7 is arranged at one end of the shell 1, so that the sealing effect is good; be equipped with first axle sleeve 701 and wool felt cover 702 in the first end cover 7, first axle sleeve 701 and wool felt cover 702 all suit on pull rod 2, and wool felt cover 702 soaks has lubricating oil, can select the lubricating oil kind as required, adopts aviation oil in this embodiment, and is lubricated effectual for pull rod 2 slides more smoothly, promotes measurement accuracy. When the device is used, the external power device drives the pull rod 2 to slide at a constant speed, so that the electric brush 4 is driven to slide at a constant speed on the surface of the conductive plastic matrix 5, and a linearly-changed analog signal is output. The utility model discloses smooth and easy pull rod formula linear displacement sensor slides, the casing bottom is equipped with the fixed bolster, and the casing is equipped with the mounting groove that is used for installing the fixed bolster, and the user of being convenient for fixes the product; the pull rod is made of stainless steel, the surface of the pull rod is smooth, and friction can be reduced, so that the sliding is smoother; the structure is simple, and the production cost is low; an elastic piece is arranged between the sliding block and the pull rod, so that a buffering effect is achieved, the electric brush is prevented from shaking when sliding, and the measurement precision is guaranteed; the pull rod is provided with a shaft sleeve and a wool felt sleeve, so that the pull rod slides smoothly; a sealing ring is arranged between the second shaft sleeve and the first sealing end cover, so that the sealing effect is good, and the dustproof effect is good; the plug-in strip comprises a positive plug-in strip, a negative plug-in strip, a signal output plug-in strip and a grounding plug-in strip, so that a matched plug can be conveniently used for connecting a power supply and outputting an analog signal, and the use is convenient; the end of the pull rod, which is far away from the sliding block component, is a bolt rod, so that the pull rod can be conveniently connected with an external power device.

Referring to fig. 1 and 2, a wool felt cuff 702 is provided at a side end of the first shaft cuff 701. A second shaft sleeve 703 is arranged in the first sealing end cover 7, and the second shaft sleeve 703 is sleeved on the outer sides of the first shaft sleeve 701 and the wool felt sleeve 702 and is installed stably.

Referring to fig. 1 to 3, a socket assembly 8 is arranged at one end of the casing 1, which is far away from the first end cover 7, the socket assembly 8 includes a second end cover 801 and a plug connector arranged on the second end cover 801, the plug connector is connected with the conductive plastic substrate 5 through a wire, the plug connector is convenient to use, is matched with a plug to connect a power supply and output an analog signal, the second end cover 801 is good in sealing effect, the product protection performance is improved, and the service life is long.

Referring to fig. 1 and 4, the plug connector is a plug connector, and the plug connector includes a positive plug connector 802, a negative plug connector 803, a signal output plug connector 804 and a grounding plug connector 805, so that the plug connector is convenient to use, and a matched plug is convenient to connect a power supply and output an analog signal.

Referring to fig. 1 and 2, the first end cap 7 is provided with an end cap cover 704, and a sealing ring 705 is provided between the second shaft sleeve 703 and the first end cap 7, so that the sealing effect is good and the dustproof effect is good.

Referring to fig. 1, the elastic member 6 is a spring, one end of the spring abuts against the sliding block 3, and the other end of the spring abuts against the pull rod 2; electric brush 4 riveting is on slider 3, and electric brush 4 is the hexahydric alloy electric brush, excellent in use effect.

Referring to fig. 1, 3 and 4, one end of the pull rod 2 away from the sliding block assembly is a bolt rod, which is convenient for connecting an external power device. The bottom of the shell 1 is provided with a fixed support 10, the shell 1 is provided with a mounting groove 11 for mounting the fixed support 10, so that a user can fix a product conveniently, and the use is convenient; the pull rod 2 is made of stainless steel, the surface of the pull rod 2 is smooth and clean, friction force can be reduced, and sliding is smooth.

Example two:

referring to fig. 1 and 5, the second embodiment is different from the first embodiment in that: the plug connector is an aviation plug 9, so that the wiring is firm, and a user can conveniently use a matched plug to connect a power supply and output an analog signal.

The utility model discloses a smooth sliding pull rod type linear displacement sensor, the end of the pull rod away from the slider component is a bolt rod, which is convenient for connecting an external power device; the bottom of the shell is provided with a fixed bracket, and the shell is provided with a mounting groove for mounting the fixed bracket, so that a user can fix a product conveniently; the pull rod is made of stainless steel, the surface of the pull rod is smooth, and friction can be reduced, so that the sliding is smoother; the structure is simple, and the production cost is low; an elastic piece is arranged between the sliding block and the pull rod, so that a buffering effect is achieved, the electric brush is prevented from shaking when sliding, and the measurement precision is guaranteed; the pull rod is provided with a shaft sleeve and a wool felt sleeve, so that the pull rod slides smoothly; a sealing ring is arranged between the second shaft sleeve and the first sealing end cover, so that the sealing effect is good, and the dustproof effect is good; the plug-in strip comprises a positive plug-in strip, a negative plug-in strip, a signal output plug-in strip and a grounding plug-in strip, so that the matched plug can be conveniently used for connecting a power supply and outputting an analog signal, and the use is convenient.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a smooth and easy pull rod formula linear displacement sensor slides which characterized in that includes: the sliding block type electric brush wrench is characterized by comprising a shell (1), wherein a pull rod (2) is installed on the shell (1) in a sliding mode, one end of the pull rod (2) is arranged in the shell (1), a sliding block assembly is arranged at one end of the pull rod (2), the sliding block assembly comprises a sliding block (3) and an electric brush (4) arranged on the sliding block (3), and an elastic piece (6) is arranged between the sliding block (3) and the pull rod (2); the conductive plastic base body (5) is fixedly arranged in the shell (1), the electric brush (4) is arranged on one side of the conductive plastic base body (5) and is in contact with the conductive plastic base body (5), a first sealing end cover (7) is arranged at one end of the shell (1), a first shaft sleeve (701) and a wool felt sleeve (702) are arranged in the first sealing end cover (7), the first shaft sleeve (701) and the wool felt sleeve (702) are sleeved on the pull rod (2), and lubricating oil is soaked in the wool felt sleeve (702).

2. The smoothly sliding pull rod type linear displacement sensor according to claim 1, wherein the felt case (702) is disposed at a side end of the first boss (701).

3. The pull rod type linear displacement sensor with smooth sliding according to claim 1, wherein a second bushing (703) is arranged in the first sealing end cover (7), and the second bushing (703) is sleeved outside the first bushing (701) and the wool felt bushing (702).

4. The sliding-free pull rod type linear displacement sensor according to claim 1, wherein a socket assembly (8) is disposed at an end of the housing (1) away from the first end cap (7), and the socket assembly (8) comprises a second end cap (801) and a plug connector disposed on the second end cap (801), and the plug connector is connected to the conductive plastic substrate (5) through a wire.

5. The sliding pull rod type linear displacement sensor according to claim 4, wherein the plug connector is a plug connector, and the plug connector comprises a positive plug connector (802), a negative plug connector (803), a signal output plug connector (804), and a grounding plug connector (805).

6. The sliding free lever linear displacement sensor of claim 4 wherein the plug is an aircraft plug (9).

7. The sliding smooth pull rod type linear displacement sensor according to claim 3, wherein the first end cap (7) is provided with an end cap cover (704), and a sealing ring (705) is arranged between the second shaft sleeve (703) and the first end cap (7).

8. The pull rod type linear displacement sensor with smooth sliding motion as claimed in claim 1, wherein the elastic member (6) is a spring, one end of the spring abuts against the slider (3), and the other end of the spring abuts against the pull rod (2); the electric brush (4) is riveted on the sliding block (3).

9. The pull rod type linear displacement sensor with smooth sliding motion as claimed in claim 1, wherein the end of the pull rod (2) away from the slider assembly is a bolt rod.

10. The pull rod type linear displacement sensor with smooth sliding according to claim 1, wherein a fixing bracket (10) is arranged at the bottom of the housing (1), and the housing (1) is provided with a mounting groove (11) for mounting the fixing bracket (10); the pull rod (2) is made of stainless steel.