CN205225837U - Mechanical type sealing medium supply control device for roots blower - Google Patents
Mechanical type sealing medium supply control device for roots blower Download PDFInfo
- Publication number
- CN205225837U CN205225837U CN201521003555.8U CN201521003555U CN205225837U CN 205225837 U CN205225837 U CN 205225837U CN 201521003555 U CN201521003555 U CN 201521003555U CN 205225837 U CN205225837 U CN 205225837U
- Authority
- CN
- China
- Prior art keywords
- cam
- roots blower
- sealing medium
- plunger pump
- transmission shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Rotary Pumps (AREA)
Abstract
The utility model relates to a mechanical type sealing medium supply control device for roots blower, its characterized in that, sealing medium supply control device set up in the oil tank of roots's fan, including cam and plunger pump, cam fixed mounting follows the transmission shaft and rotates on the transmission shaft, the center of the outline of cam is adjusted well with the center of the plunger rod of above -mentioned plunger pump, drives the plunger pump and is reciprocal rotary motion, the confession oil pipe who seals the chamber intercommunication with the roots blower mechanical type is connected to the oil -out of plunger pump, still be equipped with back oil pipe on the sealed chamber of roots blower mechanical type, time oil pipe forms a sealing medium and supplies with circulation circuit in stretching into the oil tank in the oil tank. Compare consumption, the low cost who does not increase other energy with current mechanical seal structure, sealed effect is showing to do not need the customer provide plus the water source, do not need on -the -spot installation, and use safe and reliable under the airtight state in whole fuel feeding process.
Description
Technical field
The utility model belongs to roots blower shaft end seal technical field, particularly relates to a kind of Roots blower mechanical sealing medium apparatus for controlling of supply.
Background technique
When Roots blower is for carrying toxic and harmful, often consider the problem of Leakage Gas befouling environment, so hermetic seal generally adopts the structure of mechanical seal.Because mechanical seal is applied between dynamic and static ring by the pressure of sealing medium, thus reach the effect of sealing, thus use the on-the-spot water source that must provide convenience or special petrol station is installed, guarantee sealing effect, which adds the cost of investment of client, and the also corresponding raising of later stage user cost.
Summary of the invention
The utility model provides a kind of structure simply, not need in-site installation for solving in known technology the technical problem that exists, do not need outer to join high-pressure water or petrol station, the Roots blower mechanical sealing medium apparatus for controlling of supply of safe and reliable, long service life.
The technological scheme that the utility model is taked for the technical problem existed in solution known technology is:
A kind of Roots blower mechanical sealing medium apparatus for controlling of supply, it is characterized in that, sealing medium apparatus for controlling of supply is arranged in the fuel tank of roots blower, comprise cam and plunger pump, described cam is fixedly mounted on transmission shaft, rotate with transmission shaft, the central alignment of the central position of the external frame of described cam and the plunger rod of above-mentioned plunger pump, drive plunger pump to do reciprocating rotating motion; The oil outlet of described plunger pump connects the fuel supply line be communicated with Roots blower mechanical sealing chamber, and chamber is also provided with return tube to Roots blower mechanical sealing, and return tube stretches in fuel tank, forms a sealing medium supply circulation loop in fuel tank.
The utility model can also adopt following technical measures:
The rotating central hole of described cam is screw, and direct spiral shell is contained on the thread section of transmission shaft, is also fitted with locking nut in the both sides of cam.
The surface of contact of the bi-side of described cam, locking nut and cam is provided with rubbing surface.
The rotating central hole of described cam is unthreaded hole, cam is provided with fastening screw trip bolt along unthreaded hole radial direction, in unthreaded hole, is fitted with swivel nut, and described swivel nut spiral shell is contained on the thread section of transmission shaft, is fitted with locking nut in the outside of cam.
The advantage that the utility model has and good effect are: because the utility model adopts technique scheme, namely when former roots blower structure is constant, only on transmission shaft, increase a cam, in fuel tank, plunger pump is installed, by cam transmission with the rotation of transmission shaft, and then plunger pump is moved reciprocatingly according to its characteristics of motion, thus obtain sealing load in sealing load chamber, finally realize sealing effect; This kind of sealing means does not increase the consumption of other energy, and with low cost compared with the additional oil circuit of existing machinery sealing configuration and petrol station, Be very effective, and the water source not needing client to provide additional, do not need in-site installation; And use under whole Fuel injection system is air-tight state, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment 1 structural representation;
Fig. 2 is A-A sectional view in Fig. 1;
Fig. 3 is embodiment 1 using state figure;
Fig. 4 is the utility model embodiment 2 structural representation;
Fig. 5 is B-B sectional view in Fig. 4.
In figure: 1, fuel tank; 2, cam; 3, plunger pump; 3-1, plunger rod; 4, transmission shaft; 5, fuel supply line; 6, locking nut; 7, rubbing surface; 8, fastening screw trip bolt; 9, swivel nut; 9-1, slew constrained; 10, return tube.
Embodiment
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Embodiment 1, refer to Fig. 1 and Fig. 2, a kind of Roots blower mechanical sealing medium apparatus for controlling of supply, sealing medium apparatus for controlling of supply is arranged in the fuel tank 1 of roots blower, comprise cam 2 and plunger pump 3, described cam is fixedly mounted on transmission shaft 4, rotates with transmission shaft, the central alignment of the central position of the external frame of described cam 2 and the plunger rod 3-1 of above-mentioned plunger pump 3, drives plunger pump to do reciprocating rotating motion; The oil outlet of described plunger pump 3 connects the fuel supply line 5 be communicated with Roots blower mechanical sealing chamber, and chamber is also provided with return tube 10 to Roots blower mechanical sealing, and return tube stretches in fuel tank, forms a sealing medium supply circulation loop in fuel tank; In order to the pressure better controlling oil return can be equipped with Decompression valves on return tube.
In the present embodiment, the rotating central hole of described cam 2 is screw, direct spiral shell is contained on the thread section 4-1 of transmission shaft 4, locking nut 6 is also fitted with in the outside of cam 2, the object of locking nut 6 is that placing cam loosens with the rotation of transmission shaft, and then cause and depart from the plunger rod of plunger pump, cause the damage of plunger rod and the axle head mechanical seal of sealing to lose efficacy.
Do not loosen to improve after cam is clamped, the surface of contact of the bi-side of described cam, locking nut and locking nut and cam is provided with rubbing surface 7.
Embodiment 2, refer to Fig. 3 and Fig. 4, and the rotating central hole of cam directly can not be sleeved on the thread section of transmission shaft as unthreaded hole herein, otherwise will destroy thread section along with the rotation of transmission shaft, and then cause later stage driving gear to dismantle the problem of not getting off; The all right following feature of the present embodiment for this reason, the rotating central hole of described cam 2 is unthreaded hole, and cam is provided with fastening screw trip bolt 8 along unthreaded hole radial direction, is fitted with swivel nut 9 in unthreaded hole, and the outer surface of described swivel nut is provided with slew constrained 9-1; Described swivel nut spiral shell is contained on the thread section of transmission shaft 4, is fitted with locking nut 6 in the outside of cam.
Technique scheme, when former roots blower structure is constant, only on transmission shaft, increase a cam, in fuel tank, plunger pump is installed, by cam transmission with the rotation of transmission shaft, and then plunger pump is moved reciprocatingly according to its characteristics of motion, thus obtain sealing load in sealing load chamber, finally realize sealing effect.
The utility model does not increase the consumption of other energy in sum, and with low cost compared with the additional oil circuit of existing machinery sealing configuration and petrol station, Be very effective, and the water source not needing client to provide additional, do not need in-site installation; And use under whole Fuel injection system is air-tight state, safe and reliable.
The above is only to preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (4)
1. a Roots blower mechanical sealing medium apparatus for controlling of supply, it is characterized in that, sealing medium apparatus for controlling of supply is arranged in the fuel tank of roots blower, comprise cam and plunger pump, described cam is fixedly mounted on transmission shaft, rotate with transmission shaft, the central alignment of the central position of the external frame of described cam and the plunger rod of above-mentioned plunger pump, drive plunger pump to do reciprocating rotating motion; The oil outlet of described plunger pump connects the fuel supply line be communicated with Roots blower mechanical sealing chamber; Chamber is also provided with return tube to Roots blower mechanical sealing, and return tube stretches in fuel tank, forms a sealing medium supply circulation loop in fuel tank.
2. Roots blower mechanical sealing medium apparatus for controlling of supply according to claim 1, is characterized in that: the rotating central hole of described cam is screw, and direct spiral shell is contained on the thread section of transmission shaft, is also fitted with locking nut in the both sides of cam.
3. Roots blower mechanical sealing medium apparatus for controlling of supply according to claim 2, is characterized in that: the surface of contact of the bi-side of described cam, locking nut and cam is provided with rubbing surface.
4. Roots blower mechanical sealing medium apparatus for controlling of supply according to claim 1, it is characterized in that: the rotating central hole of described cam is unthreaded hole, cam is provided with fastening screw trip bolt along unthreaded hole radial direction, swivel nut is fitted with in unthreaded hole, described swivel nut spiral shell is contained on the thread section of transmission shaft, is fitted with locking nut in the outside of cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521003555.8U CN205225837U (en) | 2015-12-04 | 2015-12-04 | Mechanical type sealing medium supply control device for roots blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521003555.8U CN205225837U (en) | 2015-12-04 | 2015-12-04 | Mechanical type sealing medium supply control device for roots blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205225837U true CN205225837U (en) | 2016-05-11 |
Family
ID=55900906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521003555.8U Withdrawn - After Issue CN205225837U (en) | 2015-12-04 | 2015-12-04 | Mechanical type sealing medium supply control device for roots blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205225837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351245A (en) * | 2015-12-04 | 2016-02-24 | 天津市天鼓机械制造有限公司 | Mechanical sealing medium supplying control device for roots blower |
-
2015
- 2015-12-04 CN CN201521003555.8U patent/CN205225837U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351245A (en) * | 2015-12-04 | 2016-02-24 | 天津市天鼓机械制造有限公司 | Mechanical sealing medium supplying control device for roots blower |
| CN105351245B (en) * | 2015-12-04 | 2017-09-12 | 天津市天鼓机械制造有限公司 | Roots blower mechanical sealing medium apparatus for controlling of supply |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209012010U (en) | Plunger pump and hand-hold washer | |
| CN205225837U (en) | Mechanical type sealing medium supply control device for roots blower | |
| CN105351245A (en) | Mechanical sealing medium supplying control device for roots blower | |
| CN203822692U (en) | Axial packing seal device | |
| CN205225836U (en) | Roots blower axle head mechanical seal system | |
| CN203584869U (en) | Wind wheel locking device for fan coil pipe | |
| CN202017650U (en) | Sealing structure of pump | |
| CN202852006U (en) | Butterfly valve | |
| CN202108771U (en) | Sealing device structure for sewage pump | |
| CN105298906A (en) | Shaft end mechanical sealing system for Roots blower | |
| CN204267848U (en) | A kind of novel vacuum locking-valve | |
| CN203230613U (en) | Double suction pump | |
| CN202768419U (en) | Pumping device for circulating water pipe network | |
| CN201428617Y (en) | Highly-effective self priming pump | |
| CN205154623U (en) | Oil pump reversing mechanism | |
| CN204061135U (en) | A kind of durable two-cylinder type plunger pump | |
| CN204573091U (en) | Output shaft sealing device and electric actuator | |
| CN203809228U (en) | Water pump | |
| CN203051296U (en) | Hydraulic cylinder | |
| CN203702576U (en) | Pipeline circulating pump | |
| CN204371696U (en) | Namely one drives energy-saving vertical self-priming pump | |
| CN204082556U (en) | A kind of adverse current cooling dry type Roots pump | |
| CN210440649U (en) | Pneumatic side-mounted manual flat gate valve | |
| CN203175935U (en) | Self-priming pump connecting device | |
| CN204126886U (en) | A kind of gear pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160511 Effective date of abandoning: 20170908 |