CN209706881U

CN209706881U - A kind of rotz flowmeter

Info

Publication number: CN209706881U
Application number: CN201920491967.2U
Authority: CN
Inventors: 任淑兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-12
Filing date: 2019-04-12
Publication date: 2019-11-29
Anticipated expiration: 2029-04-12

Abstract

The utility model discloses a kind of rotz flowmeters, belong to a kind of technical field of flow instrument, including shell, rotor, partition, synchromesh gear, rear bearing, fore bearing and end cap, the rotor includes waist wheel, forward spindle and rear main shaft, one end of the forward spindle sequentially passes through the inner hole of partition, synchromesh gear and fore bearing, and the inner hole with fore bearing, it is characterized by: the fore bearing is arranged on end cap, end cap is arranged on shell, face cooperates between the transverse plane of end cap and the transverse plane of shell, alignment pin is provided between end cap and shell, alignment pin is used to position the rigging position relationship of end cap and shell.The utility model relates to a kind of rotz flowmeter drastically changed the structure of previous traditional rotz flowmeter, the process of processing and assembly is drastically changed, it effectively can steadily control the product quality of rotz flowmeter, it is effectively reduced product cost and processing efficiency, substantially increases assembly and the maintenance efficiency of product.

Description

A kind of rotz flowmeter

Technical field

The utility model relates to a kind of rotz flowmeter of fluid metering more particularly to a at low cost, processing and dresses With the easily controllable rotz flowmeter of high-efficient, performance quality.

Background technique

With the development of informationized society, people increasingly pay attention to fluid metering and monitoring, especially current people couple The increasingly attention of environmental pollution, natural gas utilize as a kind of efficient clean energy resource and obtain the height weight of the Chinese government Depending on the Chinese government has put into effect the policy and future plan of gas utilization, flowmeter relevant to gas metering in succession thus It will be widely applied, in various types flowmeter, rotz flowmeter is as the simple volumetric flowmeter tool of a structure There are its unique products characteristics and advantage, rotz flowmeter accounts for a greater part of market in current industry and commerce gas metering Specific gravity, under such developing state, a at low cost, processing of exploitation design is more easily controlled with assembly efficiency height, performance quality Rotz flowmeter very big value will be brought to society, this is the source starting point that this patent comes into being.

The fore bearing of this side of synchromesh gear is all setting in bearing block (setting fore bearing in the existing product of Vehicles Collected from Market A disk-shaped part) on, bearing block is also one of several key parts of rotz flowmeter on Vehicles Collected from Market, this part is given Product increases material cost, and because the requirement on machining accuracy of bearing block is very high, this part also significantly increases processing Cost；And currently marketed rotz flowmeter will also pass through several (one in Product Assembly and product maintenance process bottom bracket As be 4) bigger screw is fixed and clamped on shell, is in during Product Assembly most because assembling this several screws In a crucial link, debugging is often dismounted repeatedly, therefore it is average to twist the frequency of this several screws during Product Assembly The time of occupancy is more than more than half, this actually leverages Product Assembly and maintenance efficiency, and then waste of manpower cost, Simultaneously as this process operating time increases, the risk that bearing enters dust and impurity is increased, is brought to product quality Hidden danger.

Rotz flowmeter is a to processing and all very high flowmeter of assembly technical requirement.Vehicles Collected from Market existing procucts Assembling process in the control of the end clearance of waist wheel there are mainly two types of mode, a kind of mode is by adjusting elastic washer The decrement of (disk spring) controls waist wheel along axial position, and this mode is since it is desired that pass through the artificial tune of assembler Section, so bring subjectivity to end clearance control, so it is difficult to ensure that make waist wheel mounted in most reasonable axial position, thus The stability of product is influenced, while this mode has been greatly reduced the assembly efficiency of product；Another way is to pass through axis The depth dimensions in the hole of the assembly bearing of seat are held to control the position of bearing, and rotor is assemblied on bearing, and then is controlled End clearance between waist wheel and shell, such method is more reasonable than former, but because increases bearing block (big dish type zero Part) error be also not most direct most stable of mode in this way to increase accumulated error and rigging error.

The unstable quality for how effectively eliminating product in current situations, reduces the cost of product, greatly It improves processing efficiency and assembly efficiency will need solution and extremely valuable major issue.

Utility model content

The purpose of the utility model is to provide a at low cost, processing and assembly efficiencies, and that high, performance quality controls is stable A kind of rotz flowmeter.It can be substantially reduced product cost, while greatly improve product in assembly and the efficiency in maintenance.

The purpose of this utility model is to be realized by the following technical solution: a kind of rotz flowmeter of the utility model, Including shell, rotor, partition, synchromesh gear, rear bearing, fore bearing and end cap, the rotor include waist wheel, forward spindle and after Main shaft, one end of the forward spindle sequentially passes through the inner hole of partition, synchromesh gear and fore bearing, and matches with the inner hole of fore bearing It closes, it is characterised in that: the fore bearing is arranged on end cap, and end cap is arranged on shell, the transverse plane of end cap and shell Face cooperates between transverse plane, alignment pin is provided between end cap and shell, the alignment pin is for positioning end cap and shell The rigging position relationship of body.

A kind of rotz flowmeter, it is characterised in that: fore bearing is set up directly in the inner hole of end cap.

A kind of rotz flowmeter, it is characterised in that: bearing is set on end cap, and fore bearing is arranged in bearing holder (housing, cover) Inner hole in.

A kind of rotz flowmeter, it is characterised in that: forward spindle is directly inserted in the inner hole of fore bearing.

A kind of rotz flowmeter, it is characterised in that: the transverse plane of partition is tightly attached to shell by end cap On mounting plane.

A kind of rotz flowmeter, it is characterised in that: end cap compresses sealing ring, and sealing ring compresses partition, makes partition Transverse plane be tightly attached on the mounting plane of shell.

A kind of rotz flowmeter, it is characterised in that: sealing ring is also pressed on the sealing surface of shell by end cap simultaneously On.

A kind of rotz flowmeter, it is characterised in that: the inner ring end face of rear bearing is pressed on by screw 1 and washer Afterwards on the step surface of main shaft, rear bearing cover for seat is on the outer ring of rear bearing, the inner hole bottom surface of rear bearing block and the outer ring of rear bearing End face cooperation, the other end cooperation of the outer ring of the end face and rear bearing of rear bearing cover, rear bearing cover passes through with rear bearing block Screw 3 is connected and fixed, and the other end of rear bearing cover is tensed on the hole bottom surface of shell by screw 2.

A kind of rotz flowmeter, it is characterised in that: forward spindle and rear main shaft are the same part.

It is that the utility model can generate the utility model has the advantages that fore bearing be arranged on end cap, with currently marketed product phase Than damage has removed a key part --- bearing block, bearing block are the disk-shaped part that fore bearing is arranged, this can reduce about 6% Material cost can also save about 15% part processing cost；Forward spindle is directly inserted in the inner hole of the fore bearing of end cap simultaneously In, partition, when installing end cap, is also just completed on the mounting plane for being pressed on shell by end cap in passing when assembling end cap The assembly of entire product key position, this process average can save 50% or more assembly time, substantially increase assembly Efficiency；Because it is few to assemble the screw that this key position uses, when wanting maintenance product, as long as opening end cap, it can easily Each key part is removed, the replacement of vulnerable part bearing can also be easily carried out, because fore bearing is in the outermost end of forward spindle, So having no need to change the assembly relation between synchromesh gear and rotor when replacement bearing, it ensure that the original-pack of rotz flowmeter is matched Relationship, or even any part on dismounting forward spindle is not all needed, great efficiency is brought to maintenance.In addition to the ruler of rotor itself Other than very little tolerance, the end clearance of waist wheel is mainly related with the thickness of rear bearing cover, the tolerance of depth of hole bottom surface of shell, after Bearing cap is the small part of a truncated cone-shaped, and thickness work in-process is easily to control very accurate, shell The depth of hole bottom surface is usually to be come out by machining center in a positioning process, equally easily can control very smart Really, therefore the end clearance of waist wheel is available very objective and accurately controls, and the cooperation of the hole bottom surface of rear bearing cover and shell Face is smaller, this is filled with existing product currently on the market by the cooperation bring in the big face of bearing block (big disk-shaped part) It is apparent small with accumulated error, therefore the available objectively effectively stable control in the end clearance of waist wheel, it is directed to city The control mode of existing procucts has apparent advantage on field.The utility model relates to a kind of rotz flowmeter drastically change The structure of previous tradition rotz flowmeter, has drastically changed the process of processing and assembly, effectively can steadily control waist wheel The product quality of flowmeter, is effectively reduced product cost and processing efficiency, substantially increases assembly and the maintenance efficiency of product.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

The right side view of the position Fig. 2 the utility model；

Fig. 3 is the structural schematic diagram of the utility model shell；

Fig. 4 is the structural schematic diagram of the utility model end cap；

Fig. 5 is the structural schematic diagram for the end cap that the utility model is equipped with bearing holder (housing, cover)；

Fig. 6 is the structural schematic diagram of the utility model partition；

Fig. 7 is the structural schematic diagram of the utility model partition other side；

Appended drawing reference: 1, end cap；The inner hole of 1a, end cap；The transverse plane of 1b, end cap；2, fore bearing；3, forward spindle；4, close Seal；5, partition；The inner hole of 5a, partition；The sealing surface of 5b, partition；The transverse plane of 5c, partition；6, synchromesh gear；7, shell； The mounting plane of 7a, shell；The hole bottom surface of 7b, shell；The sealing surface of 7c, shell；The transverse plane of 7d, shell；8, waist wheel；9, after Main shaft；10, rear bearing block；11, rear bearing；12, rear bearing cover；13, washer；14, screw 1；15, screw 2；16, screw 3； 17, alignment pin；18, bearing holder (housing, cover)；19, end cap housing screw.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

As shown in figs. 1-7, a kind of rotz flowmeter, shell 7, rotor, partition 5, synchronous gear including bearing Fluid pressure Wheel 6, rear bearing 11, fore bearing 2 and the end cap 1 for bearing Fluid pressure, the rotor includes waist wheel 8, forward spindle 3 and rear main shaft 9, one end of the forward spindle 3 sequentially passes through the inner hole 5a of partition, synchromesh gear 6 and fore bearing 2, and in fore bearing 2 Hole cooperation, the fore bearing 2 are arranged in the inner hole 1a of end cap, and end cap 1 is arranged on shell 7, the transverse plane (1b) of end cap Face cooperates between the transverse plane 7d of shell, alignment pin 17 is provided between end cap 1 and shell 7, alignment pin 17 is for fixed End cap 1 is pressed on the transverse plane 7d of shell by the rigging position relationship of position end cap 1 and shell 7, end cap housing screw 19；It is described Fore bearing 2 be set up directly in the inner hole 1a of end cap；The forward spindle 3 is directly inserted in the inner hole of fore bearing 2；Shell it is close It is formed with groove between cover 7c and the sealing surface 5b of partition, sealing ring 4 is provided in groove, the transverse plane 1b of end cap compresses close Seal 4, sealing ring 4 compress partition 5 by the sealing surface 5b of partition, are tightly attached to partition 5 on the mounting plane 7a of shell, simultaneously Sealing ring 4 is pressed on the sealing surface 7c of shell by end cap 1.

Structure bring above has the beneficial effect that: being formed between the sealing surface 7c of shell and the sealing surface 5b of partition Groove is provided with sealing ring 4 in groove, and the transverse plane 1b of end cap compresses sealing ring 4, because the sealing surface 5b of partition is inclined-plane, So partition 5 is pressed on the mounting plane 7a of shell by the transverse plane 1b of end cap when compressing sealing ring 4, while also, because Sealing ring 4 is also pressed on the sealing surface 7c of shell by end cap 1 simultaneously, so sealing is formd between shell 7 and end cap 1, It both ensure that the sealing to measured fluid by this simple structure, while the transverse plane 5c of partition be also pressed on shell On mounting surface 7a；Because forward spindle 3 is in the inner hole for the fore bearing 2 being directly inserted on end cap 1, and partition 5 is also by close What seal 4 and end cap 1 compressed, so after end cap 1 is pressed on the transverse plane 7d of shell by end cap housing screw 19 The key position of entire rotz flowmeter is just installed；Similarly, when rotz flowmeter is dismantled in maintenance, it is only necessary to dismantle end cap pressure Tight screw 19, also just go directly rotz flowmeter key position to be repaired, and then carries out the operation of repair and replacement bearing or rotor, Because fore bearing 2 is in the outermost end of forward spindle 3, had no need to change between synchromesh gear 6 and rotor when replacing fore bearing 2 Assembly relation, ensure that the former assembly relation of rotz flowmeter, in addition all do not need dismounting forward spindle 3 on any part, This brings great convenience to maintenance with maintenance.

To further realize the purpose of this utility model, the inner ring end face of rear bearing 11 passes through screw 1(14) and washer 13 Be pressed on the step surface of rear main shaft 9,10 sets of rear bearing block on the outer ring of rear bearing 11, the inner hole bottom surface of rear bearing block 10 with The end face of the outer ring of rear bearing 11 cooperates, the other end cooperation of the outer ring of the end face and rear bearing 11 of rear bearing cover 12, rear axle It holds lid 12 and is connected and fixed with rear bearing block 10 by screw 3(16), the other end of rear bearing cover 12 is tensed by screw 2(15) On the hole bottom surface 7b of shell.

Structure bring above has the beneficial effect that: other than the scale error of rotor itself, between the end face of waist wheel 8 Gap is mainly related with the thickness of rear bearing cover 12, the depth error of hole bottom surface 7b of shell, and rear bearing cover 12 is a truncated cone-shaped Small part, thickness work in-process is easily to control very accurate, and the depth of the hole bottom surface 7b of shell is usual It is to be come out by positioning process of machining center, equally easily can controls very accurate, therefore between the end face of waist wheel Gap is available very objective and accurately controls, and the mating surface of the two parts is smaller, this with it is existing currently on the market Product is apparent small by the cooperation bring assembly accumulation error in the big face of bearing block (big disk-shaped part), therefore waist wheel The available objectively effectively stable control in end clearance, for existing procucts in the market control mode have it is apparent excellent Gesture.

The utility model relates to a kind of rotz flowmeter drastically changed the structure of previous traditional rotz flowmeter, greatly The process of processing and assembly is changed to width, the product quality of rotz flowmeter effectively can be steadily controlled, be effectively reduced Product cost and processing efficiency substantially increase assembly and the maintenance efficiency of product.

Claims

1. a kind of rotz flowmeter, including shell (7), rotor, partition (5), synchromesh gear (6), rear bearing (11), fore bearing (2) and end cap (1), the rotor include waist wheel (8), forward spindle (3) and rear main shaft (9), one end of the forward spindle (3) Sequentially pass through the inner hole (5a), synchromesh gear (6) and fore bearing (2) of partition, and the inner hole with fore bearing (2), feature Be: the fore bearing (2) is arranged on end cap (1), and end cap (1) is arranged on shell (7), the transverse plane (1b) of end cap with Face cooperates between the transverse plane (7d) of shell, and alignment pin (17), alignment pin are provided between end cap (1) and shell (7) (17) for positioning the rigging position relationship of end cap (1) Yu shell (7).

2. a kind of rotz flowmeter according to claim 1, it is characterised in that: fore bearing (2) is set up directly on end cap (1) Inner hole (1a) in.

3. a kind of rotz flowmeter according to claim 1, it is characterised in that: bearing holder (housing, cover) (18) is arranged on end cap (1), Fore bearing (2) is arranged in the inner hole of bearing holder (housing, cover) (18).

4. a kind of rotz flowmeter according to claim 1 or 2 or 3, it is characterised in that: before forward spindle (3) is directly inserted in In the inner hole of bearing (2).

5. a kind of rotz flowmeter according to claim 1 or 2 or 3, it is characterised in that: the transverse plane (5c) of partition passes through End cap (1) is tightly attached on the mounting plane (7a) of shell.

6. a kind of rotz flowmeter according to claim 1 or 2 or 3, it is characterised in that: end cap (1) compresses sealing ring (4), sealing ring (4) compresses partition (5), is tightly attached to the transverse plane (5c) of partition on the mounting plane (7a) of shell.

7. a kind of rotz flowmeter according to claim 6, it is characterised in that: sealing ring (4) is also pressed by end cap (1) simultaneously Tightly on the sealing surface of shell (7c).

8. a kind of rotz flowmeter according to claim 6, it is characterised in that: the inner ring end face of rear bearing (11) passes through spiral shell Nail 1(14) and washer (13) be pressed on the step surface of rear main shaft (9), rear bearing block (10) is covered in the outer ring of rear bearing (11) On, the inner hole bottom surface of rear bearing block (10) and the cycle surface of rear bearing (11) cooperate, the end face of rear bearing cover (12) and rear axle The other end cooperation of the outer ring of (11) is held, rear bearing cover (12) passes through screw 3(16 with rear bearing block (10)) it is connected and fixed, after The other end of bearing cap (12) is tensed on the hole bottom surface (7b) of shell by screw 2(15).

9. a kind of rotz flowmeter according to claim 1 or 2 or 3, it is characterised in that: the inner ring end face of rear bearing (11) It is pressed on the step surface of rear main shaft (9) by screw 1(14) and washer (13), rear bearing block (10) is covered in rear bearing (11) On outer ring, the cycle surface of the inner hole bottom surface of rear bearing block (10) and rear bearing (11) cooperates, the end face of rear bearing cover (12) with The other end of the outer ring of rear bearing (11) cooperates, and rear bearing cover (12) passes through screw 3(16 with rear bearing block (10)) it connect admittedly Fixed, the other end of rear bearing cover (12) is tensed on the hole bottom surface (7b) of shell by screw 2(15).

10. a kind of rotz flowmeter according to claim 1, it is characterised in that: forward spindle (3) and rear main shaft (9) are same One part.