CN203163843U - Belt weighing device - Google Patents
Belt weighing device Download PDFInfo
- Publication number
- CN203163843U CN203163843U CN 201320129037 CN201320129037U CN203163843U CN 203163843 U CN203163843 U CN 203163843U CN 201320129037 CN201320129037 CN 201320129037 CN 201320129037 U CN201320129037 U CN 201320129037U CN 203163843 U CN203163843 U CN 203163843U
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- Prior art keywords
- support
- load cells
- conveyer belt
- belt conveyor
- belt
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- Control Of Conveyors (AREA)
Abstract
The utility model discloses a belt weighing device, which comprises a main support, and a weighing sensor and a conveying mechanism arranged over the main support. The conveying mechanism comprises a conveying belt and a driving roller and a driven roller driving the conveying belt. The belt weighting device is characterized in that the driving roller includes an external rotor motor, wherein the motor is arranged in the driving roller, so that the driving and driven rollers bear tractive force in the same direction, and bearings of the two rollers are balanced; and thus, the conveying belt is not easy to deviate, and metering precision of the weighing sensor is ensured.
Description
Technical field
The utility model relates to a kind of scale for dynamic weighing, especially a kind of conveyer belt scale.
Background technology
Along with the continuous development of Dynamic Weighing Technology, conveyer belt scale is widely used in industries such as tobacco, metallurgy, chemical industry, building materials, mine, harbour, logistics.The crane span structure of weighing of electronic belt weighing device is installed on to be carried on the frame, when material through out-of-date, the metering carrying roller detects material on the belt feeder by leverage and LOAD CELLS, produce a voltage signal that is proportional to belt load, weighing instrument receives signal from LOAD CELLS, calculate instantaneous delivery value and accumulating weight value, and show respectively.
Existing electronic belt weighing device such as application publication number are the disclosed a kind of modular construction belted electronic balance of the Chinese patent of CN102768062A, formed by critical pieces such as motor reducer group, material conveyer belt, scale body framework, active module, weighing platform module, slave modules, wherein initiatively module comprises drive roll, drive roll is provided with sprocket wheel, and sprocket wheel connects the motor reducer group.
Above-mentioned this belt conveyer scale, motor via reducer structure and sprocket wheel drive drive roll and rotate, drive roll can be subjected to a tractive force radially, the power that is subjected to passive cylinder is not on same plane, the force unbalance that is subjected to that causes drive roll and passive cylinder makes the easy sideslip of belt, and it is different that the different relative material movement of belt slack sideslip tension force is produced pressure, thereby cause the jitter of LOAD CELLS, influence weighing results.
The utility model content
Technical problem to be solved in the utility model provides a kind of simple in structure, reliable conveyer belt scale of weighing.
The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of conveyer belt scale, comprise main support, be arranged on LOAD CELLS and the conveying mechanism of main support top, drive roll and passive cylinder that described conveying mechanism comprises belt conveyor and drives described belt conveyor, it is characterized in that described drive roll is external rotor electric machine.
Described belt conveyor below is provided with flat board, offer a plurality of apertures on the described flat board, can reduce, improve or control the lax sideslip of belt conveyor, reduce friction, thereby reduce the error that is caused by relative material movement or the influence of other Nonlinear Dynamic along belt conveyor.
Also comprise brace summer, described brace summer comprises the support underbeam fixing with described main support, and puts the beams in place with the support that described conveying mechanism is fixed, and described LOAD CELLS is between described support underbeam and support upper beam, so that conveying mechanism is located.
Between described support underbeam and the LOAD CELLS, all have the gap between described support upper beam and the LOAD CELLS, but unmanaged flexibility has mutually been eliminated interference or structurally internal stress between the various parts.
The top of described passive cylinder is provided with near switch, describedly be connected to control module near switch, when material arrives near switch along with moving of belt conveyor, near switch triggering, send a signal to control module, after control module is received signal near switch, the maximum weight of record material in process of motion, and the demonstration data zero clearing on the control display screen, wait for and weighing next time.
Compared with prior art, advantage of the present utility model is: motor is arranged in the drive roll, makes drive roll and passive cylinder be subjected to the tractive force of same direction, two cylinder stress balances, make belt conveyor be not easy sideslip, guaranteed the measuring accuracy of LOAD CELLS; Flat board under belt conveyor is offered aperture, can reduce, improves or control the lax sideslip of belt conveyor, reduces friction, thereby reduces the error that is caused by relative material movement or the influence of other Nonlinear Dynamic along belt conveyor; Support between underbeam and the LOAD CELLS, support put the beams in place and LOAD CELLS between all have the gap, but unmanaged flexibility has mutually been eliminated interference or structurally internal stress between the various parts; By arranging near switch, can accurately measure the weight of material in a motion process.
Description of drawings
Fig. 1 is the front view of conveyer belt scale of the present utility model;
Fig. 2 is the vertical view (broken section) of conveyer belt scale of the present utility model;
Fig. 3 is the partial side view of conveyer belt scale of the present utility model.
Embodiment
Describe in further detail below in conjunction with the utility model of accompanying drawing embodiment.
Referring to Fig. 1 and Fig. 2, a kind of conveyer belt scale comprises main support 1, is arranged on the power distribution cabinet 2 on the main support 1.Main support 1 top is disposed with brace summer 3 and conveying mechanism 4, brace summer 3 comprises the support underbeam of fixing with main support 1 31, and put the beams in place 32 with the fixing support of conveying mechanism 4, support underbeam 31 and support to put the beams in place being provided with LOAD CELLS 5 between 32, for detection of the weight of material on the conveying mechanism 4.Support between underbeam 31 and the LOAD CELLS 5, support put the beams in place 32 and LOAD CELLS 5 between all exist certain clearance, preferred is 5mm as the gap, but make between support underbeam 31 and the LOAD CELLS 5, support unmanaged flexibility between upper beam 32 and the LOAD CELLS 5, eliminated interference or structurally internal stress between the various parts.
The flat boards 41 that conveying mechanism 4 comprises and support upper beam 32 is fixed, the belt conveyor 42 on the flat board 41, and the drive roll 43 and the passive cylinder 44 that are positioned at belt conveyor 42 two ends.The both sides of belt conveyor 42 are provided with carriage 45, and the end of the end of drive roll 43, passive cylinder 44 all is connected with carriage 45.Offer a plurality of apertures 411 on dull and stereotyped 41, preferably, aperture 411 evenly distributes, can reduce, improve or control belt conveyor 42 lax sideslips, reduce friction, thereby reduce the error that is caused by relative material movement or the influence of other Nonlinear Dynamic along belt conveyor 42, the weight of material on the belt conveyor 42 is passed to LOAD CELLS 5 all, accurately.The top of passive cylinder 44 is provided with near switch 46, and is for detection of the position of mass transport, whether close.
Referring to Fig. 3, drive roll 43 adopts external rotor electric machine, itself and carriage 45 stationary output shaft 431 are not changeed, and the cylinder 432 of output shaft 431 peripheries rotates, the tractive force that is subjected to of the tractive force of drive roll 43 and passive cylinder 44 is on same plane thus, two cylinder stress balances make belt conveyor 42 be not easy sideslip, have guaranteed the measuring accuracy of LOAD CELLS 5.Motor is connected to power distribution cabinet 2 by connection box for motor 47.
During use, material to be measured is positioned on the belt conveyor 42, LOAD CELLS 5 is calculated the programmable logic controller (PLC) (PLC) that detected signal outputs to the control module (not shown) in the power distribution cabinet 2, output weight, display screen 6 show dynamic weight data after receiving the signal of PLC.When material arrives near switch 46 along with moving of belt conveyor 42, trigger near switch 46, send a signal to control module, after control module is received signal near switch 46, the maximum weight of record material a process of motion (moving to the other end from an end of belt conveyor 42), finish high-precision metering, and the demonstration data zero clearing on the control display screen 6, wait for and weighing next time.The ability of weighing of conveyer belt scale of the present utility model can reach more than the 80m/min, and dynamic error is less than 30g.
The above only is preferred implementation of the present utility model; should be pointed out that for the ordinary skill in the art, do not breaking away under the principle prerequisite of the present utility model; can also make various deformation and improvement, this also should be considered as protection domain of the present utility model.
Claims (5)
1. conveyer belt scale, comprise main support (1), be arranged on LOAD CELLS (5) and the conveying mechanism (4) of main support (1) top, drive roll (43) and passive cylinder (44) that described conveying mechanism (4) comprises belt conveyor (42) and drives described belt conveyor (42), it is characterized in that described drive roll (43) is external rotor electric machine.
2. conveyer belt scale as claimed in claim 1 is characterized in that, described belt conveyor (42) below is provided with flat board (41), offers a plurality of apertures (411) on the described flat board (41).
3. conveyer belt scale as claimed in claim 1, it is characterized in that, also comprise brace summer (3), described brace summer (3) comprises the support underbeam (31) fixing with described main support (1), and put the beams in place (32) with the fixing support of described conveying mechanism (4), described LOAD CELLS (5) is positioned at described support underbeam (31) and supports between the upper beam (32).
4. conveyer belt scale as claimed in claim 3 is characterized in that, between described support underbeam (31) and the LOAD CELLS (5), described support is put the beams in place (32) and LOAD CELLS (5) between all have the gap.
5. conveyer belt scale as claimed in claim 1 is characterized in that, the top of described passive cylinder (44) is provided with near switch (46), describedly is connected to control module near switch (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320129037 CN203163843U (en) | 2013-03-20 | 2013-03-20 | Belt weighing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320129037 CN203163843U (en) | 2013-03-20 | 2013-03-20 | Belt weighing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203163843U true CN203163843U (en) | 2013-08-28 |
Family
ID=49025020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320129037 Expired - Fee Related CN203163843U (en) | 2013-03-20 | 2013-03-20 | Belt weighing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203163843U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036846A (en) * | 2017-12-06 | 2018-05-15 | 深圳信息职业技术学院 | A kind of Novel waistband scale |
-
2013
- 2013-03-20 CN CN 201320129037 patent/CN203163843U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036846A (en) * | 2017-12-06 | 2018-05-15 | 深圳信息职业技术学院 | A kind of Novel waistband scale |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20160320 |