CN204458617U - A kind of rear flange for running motor - Google Patents
A kind of rear flange for running motor Download PDFInfo
- Publication number
- CN204458617U CN204458617U CN201520118602.7U CN201520118602U CN204458617U CN 204458617 U CN204458617 U CN 204458617U CN 201520118602 U CN201520118602 U CN 201520118602U CN 204458617 U CN204458617 U CN 204458617U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- valve body
- rear flange
- outlet
- 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.)
- Active
Links
Landscapes
- Safety Valves (AREA)
Abstract
The utility model relates to the accessory device of Hydraulic Field, specifically, relates to a kind of rear flange for running motor.It comprises valve body, and the check valve assembly, equilibrium valve assembly, spill valve, brake valve assembly, the speed change valve assembly that are arranged on valve body, be positioned at the A oil inlet and outlet on valve body, B oil inlet and outlet, described spill valve inside is provided with overflow spool, is characterized at relief valve core inner, and the R arc of spool and bolt one end forms linear sealing, spring seat is connected with the bolt the other end, and Compress Spring mounts elastically.The utility model makes too high pressure oil flow to low voltage side by spill valve portion, in order to avoid motor comes to harm; Relief valve cored structure is simple, and pressure adjusting is accurately convenient; Twice oil circuit is merged into a road, further simplify the structure of rear flange.
Description
Technical field
The utility model relates to the accessory device of Hydraulic Field, specifically, relates to a kind of rear flange for running motor, is mainly used on crawler excavator running motor.
Background technique
Crawler belt walk motor with hydraulic pressure is made up of high-speed hydraulic motor, break, planetary reducer, valve group etc.For shell transmission, directly can be connected with wheel or crawler driving whell, be widely used in rig, no-dig technique rig, rock drilling rig, down-the-hole drill, rotary drilling rig, the creeper undercarriage of development machine and the equipment such as rail vehicle, engineering vehicle.Running motor is the executive component that crawler excavator position is moved, mobile by rear flange balance valve core, nonreturn valve core, speed change spool, brake spool, overflow spool etc., the advance of application solutions excavator, retreat, turn to, the action such as braking.Running motor rear flange was due to complex structures such as spill valve in the past, and participate in controlling part many, oil circuit is tediously long, the controlling method adopting polylith combination more, caused that rear flange overall volume is large, complex structure, the motor reaction shortcoming such as sensitive not rapidly.
Model utility content
The purpose of this utility model is the rear flange being provided for running motor, by the change to inner control unit structure, realizes the object that rear flange structure is simple, fast response time, reliability are high.After to oil circuit preferred arrangement, can reach and make the simpler object of rear flange structure.
For solving the problems of the technologies described above, to be of the present utility modelly achieved through the following technical solutions:
A kind of rear flange for running motor, comprise valve body, and the check valve assembly be arranged on valve body, equilibrium valve assembly, spill valve, brake valve assembly, speed change valve assembly, described spill valve comprises overflow valve gap 8, one end is arranged on overflow valve gap 8, the overflow auxiliary spring 9 that the other end and overflow spool 10 one end touch, be positioned at the A oil inlet and outlet on valve body, B oil inlet and outlet, its special way is: described overflow spool 10 comprises spool 22, the bolt 21 sealed is formed through its end inner face after spool 22 and spool 22 exterior edge face, the spring seat 24 be connected with bolt 21 the other end, Compress Spring 23 thereon is also socketed between spring seat 24 and spool 22.
Preferably, spring seat 24 be threaded with bolt 21 or and weld.
Preferred again, the R camber line that is sealed into of spool 22 exterior edge face and bolt 21 end inner face seals.
Preferred again, spring seat 24 is first threaded with bolt 21, when adjusting to design pressure, then together with being welded with bolt 21 by spring seat 24.
Preferred again, at the oil circuit communicated with A oil inlet and outlet, the oil circuit communicated with B oil inlet and outlet and the oil circuit intersection of leading to speed change spool, be provided with an one-way valve, three ends respectively with three oil circuits of this one-way valve communicate.Described one-way valve comprises valve body, and is positioned at the spherical valve core 20 of valve body, and one end of described valve body is provided with the plug screw 19 of band axial bore, and the inner face of plug screw 19 and spherical valve core 20 coincide and touch, and the inner face of the valve body the other end and spherical valve core 20 coincide and touch.
Preferred again, described spherical valve core 20 is steel ball.
Preferred again, described plug screw 19 hexagonal socket head plug.
The utility model compared with prior art, has the following advantages:
1, owing to improving the overflow spool in relief valve, one is too high pressure oil can be made to flow to low voltage side by spill valve portion, in order to avoid motor comes to harm; Two is that the structure of overflow spool is simple, and pressure adjusting is accurately convenient, and then simplifies the structure of flange, makes volume-diminished.
2, the one-way valve on speed change valve oil circuit is improved, the twice oil circuit of turnover speed change valve is merged into turnover one oil circuit, further simplify the structure of rear flange.
Accompanying drawing explanation
Fig. 1 is the plan view of the utility model embodiment;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the plan view of Fig. 1;
Fig. 4 is that the R-R of Fig. 2 is to sectional view;
Fig. 5 is that the S-S of Fig. 3 is to sectional view;
Fig. 6 is that the T-T of Fig. 3 is to cutaway view Amplified image;
Fig. 7 is rear flange structural drawing of the present utility model;
Fig. 8 is a kind of structural drawing of overflow spool 10 in Fig. 4.
Description of symbols: 1, nonreturn valve core, 2, unidirectional spring, 3, unidirectional valve gap, 4, main valve lid, 5, main spring, 6, throttling spring seat, 7, balance valve core, 8, overflow valve gap, 9, overflow auxiliary spring, 10, overflow spool, 11, brake spool, 12, brake spring, 13, braking valve seat, 14, hole back-up ring one, 15, speed change valve gap, 16, hole back-up ring two, 17, speed change spring, 18, speed change spool, 19, plug screw, 20, spherical valve core, 21, bolt, 22, spool, 23, Compress Spring, 24, spring seat, 25, nut, A, inlet (outlet), B, go out (entering) hydraulic fluid port, C, drain tap one, D, drain tap two, E, speed change guide hydraulic fluid port, F, side pressure hydraulic fluid port one, G, side pressure hydraulic fluid port two.
Embodiment
Referring to Fig. 1 to Fig. 8, provide embodiment of the present utility model, be used for being described further the utility model.
The form structure of this rear flange is with reference to Fig. 1 and Fig. 3, A, B are each other into and out of hydraulic fluid port, even A is filler opening, then B is oil outlet, if A is oil outlet, then B is filler opening, C and D is respectively as drain tap one, drain tap two, E is speed change guide hydraulic fluid port, F and G is respectively pressure measurement hydraulic fluid port one, pressure measurement hydraulic fluid port two.
The internal structure of this rear flange is with reference to Fig. 4 to Fig. 8.As shown in Figure 4, the structure of this rear flange has strict bilateral symmetry, can realize rotating forward and the reverse of running motor, and when A hydraulic fluid port is filler opening, B hydraulic fluid port is just oil outlet, and vice versa.It comprises valve body and is arranged on check valve assembly, equilibrium valve assembly, spill valve, brake valve assembly, the speed change valve assembly on valve body.
The formation of check valve assembly is as shown in figs. 4 and 7: unidirectional valve gap 3 is threaded connection and is contained in the unidirectional valve opening place of rear flange, and nonreturn valve core 1 is assembled on unidirectional valve gap 3 by unidirectional spring 2.
The formation of equilibrium valve assembly is as shown in figs. 4 and 7: balance valve core 7 is contained in rear flange balance valve opening, and throttling spring seat 6 is placed at two ends, and be connected with main valve lid 4 by main spring 5, main valve lid 1 is arranged on rear flange by screw thread.
The formation of spill valve is as shown in figs. 4 and 7: overflow valve gap 8 is threaded connection and is arranged on rear flange, and overflow auxiliary spring 9 one end is arranged on overflow valve gap 8, and the other end withstands on overflow spool 10.
Structure after overflow spool 10 amplifies as shown in Figure 8, it comprises spool 22, form the bolt 21 sealed, the spring seat 24 be connected with bolt 21 the other end through its end inner face after spool 22 and spool 22 exterior edge face, between spring seat 24 and spool 22, be also socketed Compress Spring 23 thereon.Here the R camber line that is sealed into of spool 22 exterior edge face and bolt 21 end inner face seals.And spring seat 24 is first threaded with bolt 21, when adjusting to design pressure, then together with spring seat 24 is welded with bolt 21.
The working principle of overflow spool is with reference to Fig. 4 and Fig. 8.If A mouth is filler opening, left side spill valve is under the effect of high pressure oil, and spool 22 contacts with rear flange to be formed and seals.When the high pressure oil active force acting on spring seat 24 left end is less than right-hand member high pressure oil active force and spring force sum, bolt 21 and spool 22 do not have relative movement, and R camber line good seal, does not have high pressure oil overflow; When the high pressure oil active force acting on spring seat 24 left end is greater than right-hand member high pressure oil active force and spring force sum; Compress Spring 23 compresses; spring seat 24 and bolt 21 together relative spool 22 move right; the R arc of bolt 21 is separated with spool; high pressure oil is overflow from then on, pushes right side overflow spool open, enters oil outlet B; pressure in motor reduces, and plays the effect of overflow safety protection.Relief valve effect makes too high pressure oil flow to low voltage side by spill valve portion, in order to avoid motor comes to harm; Relief valve cored structure is simple, and pressure adjusting is accurately convenient.
The formation of brake valve assembly is as shown in Figure 5, Figure 7: brake spool 11 is contained in rear flange braking valve opening, and brake spring 12 one end is arranged on brake spool 11, and the other end is arranged on braking valve seat 13, and braking valve seat 13 passing hole back-up ring 14 is spacing.
As shown in Figure 5, Figure 7, speed change spool 18 is contained in rear flange speed change valve opening the formation of speed change valve assembly, and speed change spring 17 one end is arranged on speed change spool 18, and the other end is arranged on speed change valve gap 15, and speed change valve gap 15 passing hole back-up ring 16 is spacing.
The one-way valve structures that the oil circuit of speed change valve assembly is arranged is as shown in Figure 6: at the oil circuit communicated with A oil inlet and outlet, the oil circuit communicated with B oil inlet and outlet and the oil circuit intersection of leading to speed change spool, be provided with an one-way valve, three ends respectively with three oil circuits of this one-way valve communicate.Described one-way valve comprises valve body, and is positioned at the spherical valve core 20 of valve body, and one end of described valve body is provided with the plug screw 19 of band axial bore, and the inner face of plug screw 19 and spherical valve core 20 coincide and touch, and the inner face of the valve body the other end and spherical valve core 20 coincide and touch.The nut 25 for sealing also is provided with at the oil circuit end be connected with the plug screw 19 of described one-way valve.
In this example, spherical valve core 20 adopts steel ball, and plug screw 19 is hexagonal socket head plug, and the inwall that the valve body the other end and steel ball touch designs for the conical surface, adopts this kind of structure can strengthen valve body two ends and steel ball sealing performance.For the spherical valve core in the utility model, guarantee the requirement of corrosivity, hardness and technique, choose metal, non-metallic material; And plug screw 19 uses the hexagonal socket head plug of threaded structure, or adopt without worm structure and the plug of band axial bore, also namely every playing blocks spherical valve core 20, and allows the plug that control oil passes through from its axial bore.
On the left of one-way valve, oil circuit communicates with A oil inlet and outlet, right side oil circuit communicates with B oil inlet and outlet, when A oil inlet and outlet is filler opening, high pressure oil will push right side by plug screw 19 to steel ball 20, formed with the valve body inner bore conical surface and seal, oil circuit flows to right side cut-off, and only have and flow to speed change spool 18 place by intermediate hole, vice versa.The one-way valve of this kind of structure, simply merges into one oil circuit the twice oil circuit leading to speed change spool 18 place, further simplify rear flange structure.
Embodiment recited above is described preferred implementation of the present utility model, not limits design of the present utility model and scope.Under the prerequisite not departing from the utility model design concept, the various modification that related domain ordinary person makes the technical solution of the utility model and improvement, all should drop into protection domain of the present utility model.
Claims (9)
1. the rear flange for running motor, comprise valve body, and the check valve assembly be arranged on valve body, equilibrium valve assembly, spill valve, brake valve assembly, speed change valve assembly, described spill valve comprises overflow valve gap (8), one end is arranged on overflow valve gap (8), the overflow auxiliary spring (9) that the other end and overflow spool (10) one end touch, be positioned at the A oil inlet and outlet on valve body, B oil inlet and outlet, it is characterized in that: described overflow spool (10) comprises spool (22), through spool (22), its end inner face and spool (22) exterior edge face form the bolt (21) sealed afterwards, the spring seat (24) be connected with bolt (21) the other end, to be positioned between spring seat (24) and spool (22) and socket Compress Spring (23) thereon.
2. a kind of rear flange for running motor as claimed in claim 1, is characterized in that: spring seat (24) be threaded with bolt (21) or and weld.
3. a kind of rear flange for running motor as claimed in claim 1 or 2, is characterized in that: the R camber line that is sealed into of spool (22) exterior edge face and bolt (21) end inner face seals.
4. a kind of rear flange for running motor as claimed in claim 2, is characterized in that: spring seat (24) is first threaded with bolt (21), when adjusting to design pressure, then together with being welded with bolt (21) by spring seat (24).
5. a kind of rear flange for running motor as claimed in claim 1 or 2, it is characterized in that: at the oil circuit communicated with A oil inlet and outlet, the oil circuit communicated with B oil inlet and outlet and the oil circuit intersection of leading to speed change spool, be provided with an one-way valve, three ends respectively with three oil circuits of this one-way valve communicate, described one-way valve comprises valve body, with the spherical valve core (20) being positioned at valve body, one end of described valve body is provided with the plug screw (19) of band axial bore, the inner face of plug screw (19) and spherical valve core (20) coincide and touch, the inner face of the valve body the other end and spherical valve core (20) coincide and touch.
6. a kind of rear flange for running motor as claimed in claim 3, it is characterized in that: at the oil circuit communicated with A oil inlet and outlet, the oil circuit communicated with B oil inlet and outlet and the oil circuit intersection of leading to speed change spool, be provided with an one-way valve, three ends respectively with three oil circuits of this one-way valve communicate, described one-way valve comprises valve body, with the spherical valve core (20) being positioned at valve body, one end of described valve body is provided with the plug screw (19) of band axial bore, the inner face of plug screw (19) and spherical valve core (20) coincide and touch, the inner face of the valve body the other end and spherical valve core (20) coincide and touch.
7. a kind of rear flange for running motor as claimed in claim 4, it is characterized in that: at the oil circuit communicated with A oil inlet and outlet, the oil circuit communicated with B oil inlet and outlet and the oil circuit intersection of leading to speed change spool, be provided with an one-way valve, three ends respectively with three oil circuits of this one-way valve communicate, described one-way valve comprises valve body, with the spherical valve core (20) being positioned at valve body, one end of described valve body is provided with the plug screw (19) of band axial bore, the inner face of plug screw (19) and spherical valve core (20) coincide and touch, the inner face of the valve body the other end and spherical valve core (20) coincide and touch.
8. a kind of rear flange for running motor as claimed in claim 7, is characterized in that: described spherical valve core (20) is steel ball.
9. a kind of rear flange for running motor as claimed in claim 8, is characterized in that: described plug screw (19) is hexagonal socket head plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520118602.7U CN204458617U (en) | 2015-02-28 | 2015-02-28 | A kind of rear flange for running motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520118602.7U CN204458617U (en) | 2015-02-28 | 2015-02-28 | A kind of rear flange for running motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204458617U true CN204458617U (en) | 2015-07-08 |
Family
ID=53665511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520118602.7U Active CN204458617U (en) | 2015-02-28 | 2015-02-28 | A kind of rear flange for running motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204458617U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018210046A1 (en) * | 2017-12-27 | 2018-11-22 | 徐工集团工程机械有限公司 | Travel motor integrated valve cover, and travel motor |
-
2015
- 2015-02-28 CN CN201520118602.7U patent/CN204458617U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018210046A1 (en) * | 2017-12-27 | 2018-11-22 | 徐工集团工程机械有限公司 | Travel motor integrated valve cover, and travel motor |
| KR20200099515A (en) * | 2017-12-27 | 2020-08-24 | 엑스씨엠지 컨스트럭션 머쉬너리 코포레이션 리미티드 | Integrated valve cover of travel motor, and travel motor |
| JP2021508802A (en) * | 2017-12-27 | 2021-03-11 | 徐工集▲団▼工程机機有限公司 | Travel motor integrated valve cover and travel motor |
| JP7029523B2 (en) | 2017-12-27 | 2022-03-03 | 徐工集▲団▼工程机機有限公司 | Traveling motor integrated valve cover and traveling motor |
| KR102393001B1 (en) * | 2017-12-27 | 2022-05-02 | 엑스씨엠지 컨스트럭션 머쉬너리 코포레이션 리미티드 | integrated valve cover of the travel motor, and the travel motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102635329A (en) | Novel double-seal arrow-shaped check valve | |
| CN103527076A (en) | Top-driving-power faucet | |
| CN204458617U (en) | A kind of rear flange for running motor | |
| ATE403807T1 (en) | CONTROL VALVE FOR A HYDROMOTOR | |
| CN103993837B (en) | A kind of water conservancy punching high-low pressure changes drill bit automatically | |
| CN102235394B (en) | Integrated valve with oil circuit selection function for controlling hydraulic motor brake | |
| CN103670278A (en) | Mechanical system of coiled tubing electro-hydraulic machine control orienting tool | |
| CN104358515A (en) | Guide drill rod for horizontal directional drilling machine | |
| CN103410997A (en) | High-pressure-relief type parallel-double-gate single side hard sealing gate valve | |
| CN203383743U (en) | One-way non-return drill rod for coal mine | |
| CN202790677U (en) | Two-position three-way valve for petroleum and gas, coalbed methane and shale gas safety control systems | |
| CN202755942U (en) | Simple blowout preventer | |
| CN103993834A (en) | Hydraulic reaming system | |
| CN103511683A (en) | Wear-resisting one-way valve | |
| CN204627541U (en) | The incorgruous synchronous joint control ball-and-seat of double layer continuous oil pipe plunger type double-channel | |
| KR20130092010A (en) | Linkage structure for bucket and arm of hydraulic excavator | |
| CN102654203B (en) | Spherical stop valve for underground combined mining working surface of coal mine | |
| CN202182078U (en) | Pile-up valve with oil way selection for hydraulic motor brake control | |
| CN203867476U (en) | Automatic high pressure and low pressure switching drilling head for hydraulic punching | |
| CN103307310B (en) | The electromagnetic priority valve of mine hydraulic bracket electrohydraulic control system | |
| RU2367763C1 (en) | Drill bit for well drilling on outburst-prone seams | |
| CN202608923U (en) | Tensioning device of chassis walking mechanism of rotary drilling rig | |
| CN206246354U (en) | The bearing lubrication structure of two-way gear oil pump | |
| CN204457698U (en) | Well water filling counter-flow resisting device | |
| CN203679456U (en) | Water retaining tool of perforating gun |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |