CN215639338U

CN215639338U - Chain length measuring device

Info

Publication number: CN215639338U
Application number: CN202121003275.2U
Authority: CN
Inventors: 黄国军
Original assignee: Foshan Gaoming Yongchuan Locomotive Fitting Manufacturing Co ltd
Current assignee: Foshan Gaoming Yongchuan Locomotive Fitting Manufacturing Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2022-01-25
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a chain length measuring device, which comprises a digital display mechanism, an underframe, a first clamping seat arranged on the underframe, a traction device, a second clamping seat arranged on the traction device and a bracket, wherein the digital display mechanism is arranged on the underframe; the traction device is fixedly provided with a baffle plate, and the bracket is provided with a distance measuring sensor; the distance measuring sensor is electrically connected with the digital display mechanism. According to the chain length measuring device provided by the utility model, the two ends of the chain to be measured are respectively installed on the first clamping seat and the second clamping seat, and then the second clamping seat is driven to be far away from the first clamping seat by the traction device in a mechanical pulling manner, so that the chain is in a stretched straight state, and the measuring error is avoided; detecting the distance between the distance measuring sensor and the blocking piece in real time and sending a signal to the digital display mechanism; the staff only need look over the digital display result that shows on the digital display mechanism when the chain is completely taut and straight and can obtain measured data, and measured data is clear and reliable, the staff of being convenient for reads.

Description

Chain length measuring device

Technical Field

The utility model relates to the technical field of chain production, in particular to a chain length measuring device.

Background

The length of the chain needs to be measured after the chain is produced, so as to detect whether the length of the chain meets the production requirements. The conventional measurement method comprises the following steps: the chain was laid straight manually and its length was then measured by a tape measure.

The above-mentioned measuring method has the following technical defects in the actual use process: 1. the chain has the condition of non-straight pavement and has measurement errors; 2. the straightening and measuring operation needs to be completed by multiple persons in a matching way, and the occupied labor force is excessive; 3. because the scales on the tape measure need to be seen in a short distance and are not intuitive, a worker needs to spend a lot of time confirming the record when recording the reading of the tape measure.

It is seen that improvements and enhancements to the prior art are needed.

SUMMERY OF THE UTILITY MODEL

In view of the defects of the prior art, the utility model aims to provide a chain length measuring device, which aims to ensure that a chain is in a stretched state in a mechanical pulling mode, avoid measuring errors, automatically complete the measurement of the chain length while the chain is stretched, and save labor.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a chain length measuring device comprises a digital display mechanism, an underframe, a first clamping seat arranged on the underframe, a traction device, a second clamping seat arranged on the traction device and a bracket; the first clamping seat is used for fixing one end of the chain, the second clamping seat is used for clamping the other end of the chain, and the traction device is used for traction of the second clamping seat to enable the chain to be in a stretched straight state; the traction device is fixedly provided with a baffle plate, the bracket is provided with a distance measuring sensor, and the distance measuring sensor is used for measuring the distance between the baffle plate and the distance measuring sensor; the distance measuring sensor is electrically connected with the digital display mechanism, and the digital display mechanism is used for displaying the measuring length of the chain.

The traction device comprises a sliding table which is in sliding connection with the underframe, the second clamping seat is provided with one end of the sliding table, the other end of the sliding table is fixedly provided with a pull rope, and a heavy object which is used for pulling the sliding table to be far away from the first clamping seat is suspended at the tail end of the pull rope; the separation blade sets up on the slip table.

A stop block is arranged on the sliding table, a rotatable eccentric wheel is arranged on the underframe, and a handle is arranged on the eccentric wheel; the sliding table drives the stop block to abut against the outer peripheral surface of the eccentric wheel.

A limiting block is arranged in front of the stopping block, and the stopping block is located between the limiting block and the eccentric wheel.

The chassis is provided with at least one guide wheel for changing the movement path of the pull rope, and each guide wheel is arranged on the chassis through a support 47.

First clamping seat is including fixing first pedestal on the chassis, setting up at first pedestal top and the first arch and the second arch of mutual symmetry, be equipped with first plug on the first arch, first plug is equipped with along its axial extension's first jack, be equipped with the first bolt that is arranged in being connected and inserting first jack with chain one end in the second arch.

The second clamping seat comprises a second seat body facing the first clamping seat, a third protrusion and a fourth protrusion, wherein the third protrusion and the fourth protrusion are arranged on the second seat body and are symmetrical with each other, a second plug is arranged on the third protrusion, the second plug is provided with a second jack extending along the axial direction of the second plug, a second bolt which is used for being connected with the other end of the chain and being inserted into the second jack is arranged on the second protrusion, and the second seat body is arranged on the sliding table through an installation arm.

The digital display mechanism is including setting up shell on the chassis, setting up at the montant at the shell top, setting up at the digital display on montant top, setting up the main control board inside the shell, digital display and range finding sensor respectively with main control board electric connection.

The base frame is provided with two guide rails which are parallel to each other and extend along the tightening direction of the chain, and the sliding table is connected with the corresponding guide rails in a sliding mode through sliding blocks.

And a bearing beam is arranged between the first clamping seat and the second clamping seat, is fixed on the underframe and extends along the tightening direction of the chain.

Has the advantages that:

compared with the prior art, the chain length measuring device provided by the utility model has the advantages that the two ends of the chain to be measured are respectively arranged on the first clamping seat and the second clamping seat, and then the second clamping seat is driven to be far away from the first clamping seat by the traction device in a mechanical pulling mode, so that the chain is in a stretched straight state, and the measuring error is avoided; the distance between the distance measuring sensor and the blocking piece is detected in real time and a signal is sent to the digital display mechanism, and the digital display mechanism automatically calculates the chain length measurement value according to a preset calculation method and displays the chain length measurement value on a digital display on the digital display mechanism; the staff can obtain the measured data as long as look over the digital display result that shows on the digital display mechanism when the chain is completely taut, and the measured data is clear and reliable, the staff of being convenient for reads, just can accomplish the quality judgement of chain length fast and unmistakably to measured data record contrast afterwards. The chain straightening and measuring process can be completed by only one person, so that the labor force is greatly saved.

Drawings

Fig. 1 is a perspective view of a chain length measuring device provided by the present invention.

Fig. 2 is a plan view of the chain length measuring device provided by the present invention.

Fig. 3 is a perspective view of a first clamping seat in the chain length measuring device provided by the present invention.

Fig. 4 is a partially enlarged view of the region L in fig. 1.

Description of the main element symbols: 1-digital display mechanism, 2-bottom frame, 3-first clamping seat, 4-traction device, 5-second clamping seat, 61-bracket, 62-distance measuring sensor, 63-blocking piece, 41-sliding table, 42-pull rope, 43-weight, 44-guide rail, 45-sliding block, 46-guide wheel, 47-support, 7-chain, 81-stop block, 82-eccentric wheel, 83-handle, 84-stop block, 31-first seat body, 32-first bulge, 33-second bulge, 34-first plug, 35-first jack, 36-first plug, 51-second seat body, 52-third bulge, 53-fourth bulge, 54-second plug, 55-second plug, 11-shell, 12-vertical rod, 13-digital display, and 9-supporting beam.

Detailed Description

The utility model provides a chain length measuring device, which is further described in detail below by referring to the accompanying drawings and embodiments in order to make the purpose, technical scheme and effect of the utility model clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit the scope of the utility model.

Herein, the direction of the second clamping seat 5 approaching the first clamping seat 3 is "front", the direction of the second clamping seat 5 departing from the first clamping seat 3 is "rear", and the directions of "front" and "rear" are opposite.

Referring to fig. 1-4, the present invention provides a chain length measuring device, which includes a digital display mechanism 1, an underframe 2, a first clamping seat 3 disposed on the underframe 2, a traction device 4, a second clamping seat 5 disposed on the traction device 4, and a bracket 61; the first clamping seat 3 is used for fixing one end of the chain 7, the second clamping seat 5 is used for clamping the other end of the chain 7, and the traction device 4 is used for drawing the second clamping seat 5 to enable the chain 7 to be in a stretched state; a baffle 63 is fixedly arranged on the traction device 4, a distance measuring sensor 62 is arranged on the bracket 61, and the distance measuring sensor 62 is used for measuring the distance between the baffle 63 and the distance measuring sensor 62; the distance measuring sensor 62 is electrically connected with the digital display mechanism 1, and the digital display mechanism 1 is used for displaying the measuring length of the chain 7.

During measurement, a chain 7 to be measured is placed between the first clamping seat 3 and the second clamping seat 5, one end of the chain 7 is installed on the first clamping seat 3, the other end of the chain 7 is installed on the second clamping seat 5, and then the traction device 4 drives the second clamping seat 5 to be far away from the first clamping seat 3 in a mechanical pulling mode, so that the chain 7 is in a stretched straight state, and measurement errors are avoided; it should be noted that, the distance measuring sensor 62 and the first clamping seat 3 cannot move relative to the chassis 2, that is, the distance measuring sensor 62 and the first clamping seat 3 are absolutely stationary relative to the chassis 2, and now the distance between the distance measuring sensor 62 and the first clamping seat 3 is set to be D1; in addition, the second clamping seat 5 and the blocking piece 63 are both fixedly arranged on the traction device 4, so that the second clamping seat 5 and the blocking piece 63 cannot move relatively, and D2 between the second clamping seat 5 and the blocking plate 63 is set; the distance measuring sensor 62 detects the distance between the distance measuring sensor 62 and the blocking piece 63 in real time and sends a signal to the digital display mechanism 1, the distance between the distance measuring sensor 62 and the blocking piece 63 is set to be D3, the digital display mechanism 1 has the functions of operation and data display, the digital display mechanism 1 has preset operation formulas, namely the length L of the chain 7 is D1-D2-D3, namely D2 and D3 are fixed numerical values, the length L of the chain 7 changes along with the change of D3, and the measured value of the length of the chain 7 can be displayed on the digital display 13 on the digital display mechanism 1; in the testing process, separation blade 63 follows the elasticity degree of chain 7 and synchronous motion under draw gear 4's drive, and stop motion when chain 7 is completely taut, the staff as long as look over the digital display result that shows on the digital display mechanism 1 when chain 7 is completely taut can obtain measured data, and measured data is clear reliable, the staff of being convenient for reads, just can accomplish the quality judgement of chain 7 length fast and inerrably to measured data record contrast after that. The chain straightening and measuring process can be completed by only one person, so that the labor force is greatly saved.

In practical application, the baffle 63 is arranged at the front end of the sliding table 41 and is semicircular, the chain 7 to be measured is formed by connecting 100 chain links, the measurement range of the chain 7 is 1270mm +/-5 mm, namely when the measurement length of the chain 7 is 1275mm or 1265mm, the length of the chain 7 does not meet the quality requirement.

Specifically, the traction device 4 comprises a sliding table 41 connected with the base frame 2 in a sliding manner, one end of the sliding table 41 is provided with a second clamping seat 5, the other end of the sliding table 41 is fixedly provided with a pull rope 42, and a weight 43 for pulling the sliding table 41 away from the first clamping seat 3 is suspended at the tail end of the pull rope 42; the stopper piece 63 is provided on the slide table 41. The sliding table 41 is arranged close to the edge of the chassis 2, so that the movement path of the pulling rope 42 is L-shaped, and the gravity of the weight 43 forms a moving driving force for the sliding table 41, so that the two ends of the chain 7 can be stretched and straightened after being clamped by the first clamping seat 3 and the second clamping seat 5. The weight 43 may be a pie-shaped cast metal block, and the pull cord 42 is tied to the top of the cast metal block.

In order to ensure the smooth movement of the sliding table 41, two parallel guide rails 44 extending along the tightening direction of the chain 7 are arranged on the base frame 2, and the sliding table 41 is slidably connected with the corresponding guide rails 44 through sliding blocks 45.

Because the weight 43 is always in a suspended state in a normal state, a pulling force for driving the sliding table 41 to be away from the first clamping seat 3 is generated, and in order to facilitate the installation or the removal of the chain 7, the distance between the first clamping seat 3 and the second clamping seat 5 is ensured to be less than the length of the chain 7 when the chain 7 is stretched straight, a stop block 81 is arranged on the sliding table 41, a rotatable eccentric wheel 82 is arranged on the chassis 2, a handle 83 is arranged on the eccentric wheel 82, and the sliding table 41 drives the stop block 81 to be pressed on the outer peripheral surface of the eccentric wheel 82; when the chain 7 is to be installed or uninstalled, the eccentric wheel 82 is rotated by the handle 83, and the eccentric part of the eccentric wheel 82 pushes the sliding table 41 to move towards the direction close to the first clamping seat 3, so that the distance between the first clamping seat 3 and the second clamping seat 5 is shortened, and the chain can be installed or uninstalled in a loose state; when it is desired to straighten the chain 7, it is only necessary to rotate the eccentric 82 by the handle 83 to bring the eccentric 82 out of contact with the stopper 81, thereby eliminating interference with the movement of the slide table 41.

Preferably, a limit block 84 is arranged in front of the stop block 81, and the stop block 81 is located between the limit block 84 and the eccentric 82. By this arrangement, the moving range of the slide table 41 can be limited, and the slide block 45 at the bottom of the slide table 41 can be prevented from being detached from the guide rail 44.

Further, the base frame 2 is provided with at least one guide wheel 46 for changing the moving path of the pulling rope 42, and each guide wheel 46 is mounted on the base frame 2 through a support 47. It can be understood that the guide wheel 46 acts the same as the conventional fixed pulley, and only changes the direction of the pulling force, but does not change the magnitude of the pulling force, thereby preventing the pulling rope 42 from directly contacting with the edge of the chassis 2 to be damaged by friction.

Specifically, first clamping seat 3 is including fixing first pedestal 31 on chassis 2, setting at first pedestal 31 top and first arch 32 and the second arch 33 of mutual symmetry, be equipped with first plug 34 on the first arch 32, first plug 34 is equipped with along its axial extension's first jack 35, be equipped with on the second arch 33 and be used for being connected with chain 7 one end and insert first bolt 36 in first jack 35. It should be understood that the chain links at both ends of the chain 7 to be measured are both composed of a roller and two inner chain plates respectively provided with both ends of the roller, and the roller and the inner chain plates are provided with coaxial mounting holes; when the chain 7 is installed, the first pin 36 passes through the mounting hole of the chain link and is inserted into the first insertion hole 35 of the first plug 34, so that one end of the chain 7 is fixed on the first clamping seat 3, and the installation is very simple. When the chain 7 is dismounted, the connection between the first clamping seat 3 and the chain 7 can be released only by pulling out the first bolt 36.

Similarly, second clamping seat 5 includes towards first clamping seat 3 second pedestal 51, set up on second pedestal 51 and third arch 52 and fourth arch 53 of mutual symmetry, be equipped with second plug 55 on the third arch 52, second plug 55 is equipped with along its axially extended second jack, be equipped with on the second arch 33 and be used for being connected with the chain 7 other end and insert the second bolt 54 in the second jack, second pedestal 51 is through installing on the arm fixed slip table 41. After one end of the chain 7 is fixed on the first clamping seat 3, the second pin 54 passes through the mounting hole on the chain link and is inserted into the second insertion hole of the second plug 55, so that one end of the chain 7 is fixed on the second clamping seat 5, and the installation is very simple. When the chain 7 is dismounted, the second bolt 54 is only needed to be drawn out, and the connection between the second clamping seat 5 and the chain 7 can be released.

Preferably, the digital display mechanism 1 includes the shell 11 that sets up on the chassis 2, the montant 12 of setting at the shell 11 top, the digital display 13 of setting on montant 12 top, the main control board of setting inside at the shell 11, digital display 13 and range finding sensor 62 are connected with main control board electricity respectively. The main control board is provided with a singlechip controller, which is the prior art and is pre-recorded in the calculation formula and the control program.

Preferably, a supporting beam 9 is arranged between the first clamping seat 3 and the second clamping seat 5, and the supporting beam 9 is fixed on the underframe 2 and extends along the straightening direction of the chain 7. The supporting beam 9 can support the chain 7 in a relaxed state, so that the chain 7 can be straightened by moving the sliding table 41 backwards for a short distance.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It should be understood that the technical solutions and the inventive concepts according to the present invention may be equally replaced or changed by those skilled in the art, and all such changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A chain length measuring device is characterized by comprising a digital display mechanism, an underframe, a first clamping seat arranged on the underframe, a traction device, a second clamping seat arranged on the traction device and a bracket; the first clamping seat is used for fixing one end of the chain, the second clamping seat is used for clamping the other end of the chain, and the traction device is used for drawing the second clamping seat to enable the chain to be in a stretched state; the traction device is fixedly provided with a baffle plate, the bracket is provided with a distance measuring sensor, and the distance measuring sensor is used for measuring the distance between the baffle plate and the distance measuring sensor; the distance measuring sensor is electrically connected with the digital display mechanism, and the digital display mechanism is used for displaying the measuring length of the chain.

2. The chain length measuring device according to claim 1, wherein the traction device comprises a sliding table slidably connected with the base frame, the second clamping seat is provided with one end of the sliding table, a pull rope is fixedly arranged at the other end of the sliding table, and a weight for pulling the sliding table away from the first clamping seat is suspended at the tail end of the pull rope; the separation blade sets up on the slip table.

3. The chain length measuring device according to claim 2, wherein a stopper is provided on the slide table, a rotatable eccentric wheel is provided on the base frame, and a handle is provided on the eccentric wheel; the sliding table drives the stop block to abut against the outer peripheral surface of the eccentric wheel.

4. A chain length measuring device according to claim 3, wherein a stopper is provided in front of the stopper, and the stopper is located between the stopper and the eccentric wheel.

5. A chain length measuring device according to claim 2, wherein the base frame is provided with at least one guide wheel for changing the path of travel of the pull cord, each guide wheel being mounted to the base frame by a mount 47.

6. The chain length measuring device as claimed in claim 1, wherein the first holder comprises a first holder body fixed on the bottom frame, a first protrusion and a second protrusion symmetrically arranged on the top of the first holder body, the first protrusion is provided with a first plug, the first plug is provided with a first jack extending along an axial direction of the first plug, and the second protrusion is provided with a first plug pin for connecting with one end of the chain and inserting into the first jack.

7. The chain length measuring device of claim 6, wherein the second clamping seat comprises a second seat body facing the first clamping seat, a third protrusion and a fourth protrusion which are arranged on the second seat body and symmetrical to each other, a second plug is arranged on the third protrusion, the second plug is provided with a second jack extending along the axial direction of the second plug, a second plug pin which is used for being connected with the other end of the chain and being inserted into the second jack is arranged on the second protrusion, and the second seat body is fixed on the sliding table through an installation arm.

8. The device for measuring the length of the chain as claimed in claim 1, wherein the digital display mechanism comprises a housing arranged on the bottom frame, a vertical rod arranged on the top of the housing, a digital display arranged on the top end of the vertical rod, and a main control board arranged inside the housing, wherein the digital display and the distance measuring sensor are respectively electrically connected with the main control board.

9. The chain length measuring device of claim 2, wherein the base frame is provided with two parallel guide rails extending along the chain stretching direction, and the sliding table is slidably connected with the corresponding guide rails through sliding blocks.

10. The chain length measuring device of claim 1, wherein a support beam is arranged between the first clamping seat and the second clamping seat, and the support beam is fixed on the underframe and extends along the chain stretching direction.