TW202237451A

TW202237451A - Scavenge pump and assembling method thereof

Info

Publication number: TW202237451A
Application number: TW110109668A
Authority: TW
Inventors: 郭宏達; 陳進益
Original assignee: 易碼電控股份有限公司
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2022-10-01

Abstract

A scavenge pump and an assembling method thereof are disclosed. The scavenge pump has a stationary part, a movable part, an elastic part and a filter unit, wherein the stationary part and the movable part are connected through the filter unit and the elastic part is disposed between the stationary part and the movable part. The stationary part is composed of a plug, a pump body connected to the plug, a first elastic component disposed between the plug and the pump body, and a first sphere disposed between the first elastic component and the pump body. The movable part includes a piston, a piston base, a second elastic component, a second sphere and a plunger, wherein the two ends of the piston base are respectively connected to the piston and the plunger and the second elastic component and the second sphere are disposed between the piston and the piston base. The filter unit is sleeved over the plunger and connected to the pump body of the stationary part.

Description

回油泵與回油泵的組裝方法Oil return pump and oil return pump assembly method

本發明係關於一種回油泵與回油泵的組裝方法，尤其指一種容易組裝至液壓裝置之回油泵與其組裝方法。The present invention relates to an oil return pump and an assembly method thereof, in particular to an oil return pump easily assembled to a hydraulic device and an assembly method thereof.

因應行車安全性，現今多數的車輛皆配有防鎖死煞車系統（Anti-lock Braking System），其有能力調控車輪的煞車動作，能夠在駕駛遭遇緊急狀況或路面環境不佳時，調整致動力以避免車輛因輪胎鎖死或打滑而失控。In view of driving safety, most vehicles today are equipped with Anti-lock Braking System (Anti-lock Braking System), which has the ability to regulate the braking action of the wheels, and can adjust the actuation force when driving in an emergency or when the road environment is not good To avoid loss of control of the vehicle due to tire lock or skid.

一般防鎖死煞車系統可透過軟體（如運算程式）、硬體（如控制器）與傳動機構之組合搭配的方式調整致動力，達到加強車輛在各種情況下的操縱性。而於防鎖死煞車系統中使用液壓裝置作為傳動機構則是當前的主流，但是用於防鎖死煞車系統之液壓裝置通常具有多個零組件，組裝時需有多道工序且對密封性有高標準的要求，因此焊接為通常的貼合密封手段。Generally, the anti-lock braking system can adjust the actuation force through the combination of software (such as calculation program), hardware (such as controller) and transmission mechanism, so as to enhance the maneuverability of the vehicle in various situations. The use of hydraulic devices as the transmission mechanism in anti-lock braking systems is the current mainstream, but the hydraulic devices used in anti-lock braking systems usually have multiple components, which require multiple processes during assembly and have a negative impact on sealing. High standard requirements, so welding is the usual fit and seal method.

然而，雖然焊接易於施工於零組件之複雜接合面，但其不耐震與高溫，而配有馬達及泵之液壓裝置在運作時會因應產生震動及熱氣，長久之後，液壓裝置中的零組件之密封性會有逐漸減弱的疑慮，尤其當駕駛於有狀況時緊急煞車，液壓裝置在高速運作下產生的震動與高溫亦可能直接導致焊接之零組件斷裂分離，使防鎖死煞車系統失去作用。However, although welding is easy to construct on the complex joint surfaces of components, it is not resistant to shocks and high temperatures, and hydraulic devices equipped with motors and pumps will generate vibration and heat during operation. After a long time, the components in the hydraulic device will There may be doubts about the gradual weakening of the sealing performance, especially when the driving is under emergency braking. The vibration and high temperature generated by the hydraulic device at high speed may also directly cause the welded components to break and separate, making the anti-lock braking system useless.

而回油泵作為液壓裝置內調控油量的單元需要實現快速及間歇式的作動，尤其在運作時會產生應力和震動，因此需要緊密的配置於液壓裝置內。然而習知回油泵的結構導致其組裝程序繁複，不易置入液壓裝置的底座中且與底座的結合度不佳，另外，習知利用焊接的方式將回油泵固定於液壓裝置中的做法也因焊接品質難以掌控，對製造成本與產品品質都有影響。The oil return pump, as the unit for regulating the oil volume in the hydraulic device, needs to realize rapid and intermittent action, especially when it will generate stress and vibration during operation, so it needs to be tightly arranged in the hydraulic device. However, the structure of the conventional oil return pump makes its assembly process complicated, it is not easy to be placed in the base of the hydraulic device, and the combination with the base is not good. Welding quality is difficult to control, which has an impact on manufacturing costs and product quality.

因此，為了克服習知技術的不足之處，本發明實施例之回油泵把其構成之零組件分為四個可預組裝之部件：堵件、活塞件、彈性件和濾件，利用改良後之零組件的結構，讓其組合關係簡化，可快速地將四個部件結合組成回油泵，然後使用壓裝和壓鉚的方式將所述回油泵固定密封於液壓裝置的本體內。如此，可避免使用焊接方式組裝密封液壓裝置之零組件，提高行車安全性。Therefore, in order to overcome the deficiencies of the prior art, the oil return pump of the embodiment of the present invention divides its component parts into four parts that can be preassembled: a blocking piece, a piston piece, an elastic piece and a filter piece. The structure of the parts and components simplifies their combination relationship, and the four components can be quickly combined to form the oil return pump, and then the oil return pump is fixed and sealed in the body of the hydraulic device by pressing and riveting. In this way, welding can be avoided to assemble the parts and components of the sealed hydraulic device, thereby improving driving safety.

基於前述至少一個目的，本發明實施例之回油泵的組裝方法是把回油泵之零組件先行分段式的預組裝成堵件、活塞件、彈性件和濾件等四個部件，然後依序將活塞件、彈性件、堵件和濾件結合成回油泵，再來把軸套壓裝到液壓裝置之本體的設置槽中後，依序置入墊片與密封圈，最後再把回油泵壓裝於液壓裝置的本體內。分段式的回油泵組裝方法讓每個部件組裝的工序可依照各部件的功能採用適當的配置方法，除了簡化組裝程序使回油泵輕易地結合和置入液壓裝置進行壓裝，也增進組裝後的回油泵之強度和其與液壓裝置之間的結合度。Based on at least one of the above-mentioned purposes, the assembly method of the oil return pump in the embodiment of the present invention is to pre-assemble the components of the oil return pump in sections into four parts such as a blocking member, a piston member, an elastic member and a filter member, and then sequentially Combining piston parts, elastic parts, blocking parts and filter parts into an oil return pump, and then pressing the bushing into the setting groove of the hydraulic device body, inserting gaskets and sealing rings in sequence, and finally installing the oil return pump Press-fit into the body of the hydraulic device. The segmented oil return pump assembly method allows the assembly process of each component to adopt an appropriate configuration method according to the function of each component. In addition to simplifying the assembly process, the oil return pump can be easily combined and placed into the hydraulic device for press-fitting, and it also improves the post-assembly process. The strength of the oil return pump and the degree of integration between it and the hydraulic device.

基於前述至少一個目的，本發明實施例提供一種回油泵，其包括堵件、活塞件、彈性件和濾件，其中堵件和活塞件透過濾件連接，彈性件設於堵件和活塞件之間。堵件包含堵頭、泵體、第一彈性元件和第一球體，其中泵體連接堵頭，第一彈性元件設於堵頭和泵體之間，第一球體設於第一彈性元件和泵體之間。活塞件包含活塞、活塞座閥體、第二彈性元件、第二球體和柱塞，其中活塞座閥體連接活塞和柱塞，第二彈性元件設於活塞和活塞座閥體之間，第二球體設於第二彈性元件和活塞座閥體之間。濾件套設於柱塞並與堵件之泵體連接。Based on at least one of the aforementioned objectives, an embodiment of the present invention provides an oil return pump, which includes a blocking member, a piston member, an elastic member and a filter member, wherein the blocking member and the piston member are connected through the filter member, and the elastic member is arranged between the blocking member and the piston member between. The plug includes a plug, a pump body, a first elastic element and a first ball, wherein the pump body is connected to the plug, the first elastic element is arranged between the plug and the pump body, and the first ball is arranged between the first elastic element and the pump body. between bodies. The piston part includes a piston, a piston seat valve body, a second elastic element, a second ball and a plunger, wherein the piston seat valve body connects the piston and the plunger, the second elastic element is arranged between the piston and the piston seat valve body, and the second The ball is arranged between the second elastic element and the piston seat valve body. The filter element is sleeved on the plunger and connected with the pump body of the blocking element.

可選地，回油泵更包括密封圈、墊片及軸套，皆套設於柱塞，其中，密封圈位於濾件與墊片之間，墊片位於密封圈與軸套之間。Optionally, the oil return pump further includes a sealing ring, a gasket and a shaft sleeve, all of which are sleeved on the plunger, wherein the sealing ring is located between the filter element and the gasket, and the gasket is located between the sealing ring and the shaft sleeve.

可選地，彈性件、第一彈性元件和第二彈性元件為彈簧，第一球體和第二球體為鋼珠，濾件為濾網，密封圈為X型密封圈，軸套為黃銅軸套。Optionally, the elastic member, the first elastic element and the second elastic element are springs, the first sphere and the second sphere are steel balls, the filter element is a filter screen, the sealing ring is an X-shaped sealing ring, and the bushing is a brass bushing .

可選地，活塞之外徑與泵體之內徑經配置以使活塞可相對泵體滑動。Optionally, the outer diameter of the piston and the inner diameter of the pump body are configured such that the piston is slidable relative to the pump body.

可選地，其中活塞座閥體之第一連接端和第二連接端分別與活塞和柱塞連接，第一連接端之外徑小於活塞之外徑，第二連接端之內徑與柱塞之外徑經配置以使第二連接端之內壁與柱塞之外壁貼合。Optionally, the first connection end and the second connection end of the piston seat valve body are respectively connected to the piston and the plunger, the outer diameter of the first connection end is smaller than the outer diameter of the piston, and the inner diameter of the second connection end is the same as that of the plunger. The outer diameter is configured such that the inner wall of the second connection end fits against the outer wall of the plunger.

可選地，回油泵更包括設於活塞座閥體之進油孔和設於泵體之出油孔。Optionally, the oil return pump further includes an oil inlet hole arranged on the piston seat valve body and an oil outlet hole arranged on the pump body.

基於前述至少一個目的，本發明實施例提供一種回油泵的組裝方法，適用於一具有設置槽之裝置，組裝方法包括：壓裝一軸套於裝置之設置槽中；依序置入墊片及密封圈於設置槽中；組裝堵件、活塞件；依序組裝堵件、彈性件及活塞件並套設濾件連接堵件和活塞件，使彈性件限制於堵件和活塞件之間，以組成回油泵；壓裝組裝好之回油泵於設置槽中，使活塞件之柱塞貫穿密封圈、墊片及軸套。Based on at least one of the aforementioned objectives, an embodiment of the present invention provides an assembly method for an oil return pump, which is suitable for a device with a setting groove. The assembly method includes: pressing a shaft sleeve into the setting groove of the device; inserting the gasket and the seal in sequence Circle in the setting groove; assemble the blocking piece and the piston piece; assemble the blocking piece, the elastic piece and the piston piece in sequence, and set the filter piece to connect the blocking piece and the piston piece, so that the elastic piece is limited between the blocking piece and the piston piece, so as to Constitute the oil return pump; press-fit the assembled oil return pump in the installation groove, so that the plunger of the piston part penetrates the sealing ring, gasket and shaft sleeve.

可選地，回油泵的組裝方法更包括將回油泵壓鉚固定於裝置之設置槽中。Optionally, the method for assembling the oil return pump further includes pressing and fixing the oil return pump in the installation groove of the device.

可選地，壓裝組裝好之回油泵於設置槽的步驟包括施力於墊片與密封圈使墊片與密封圈過盈配置於設置槽中。Optionally, the step of press-fitting the assembled oil return pump in the setting groove includes applying force to the gasket and the sealing ring so that the gasket and the sealing ring are interference-disposed in the setting groove.

簡言之，本發明實施例提供的回油泵及回油泵之組裝方法利用改良後之回油泵零組件之結構，例如可預組裝之四個部件（堵件、活塞件、彈性件和濾件），簡化其組合關係，進而減少組裝程序且避免使用焊接進行密封。如此一來，透過壓裝和壓鉚的固定方式可提高液壓裝置的密封性與長久性，進而確保行車安全性，故於對液壓裝置有需求之各種市場（例如車輛製造商、機車製造商、ABS製造商等）具有優勢。In short, the oil return pump and the assembly method of the oil return pump provided by the embodiment of the present invention utilize the improved structure of the oil return pump components, such as four pre-assembled parts (blocking part, piston part, elastic part and filter part) , to simplify its combined relationship, thereby reducing assembly procedures and avoiding the use of welding for sealing. In this way, the sealing and durability of the hydraulic device can be improved through the fixing method of pressing and riveting, thereby ensuring driving safety. Therefore, various markets that have demand for hydraulic devices (such as vehicle manufacturers, locomotive manufacturers, ABS manufacturers, etc.) have an advantage.

為讓本發明之上述和其他目的、特徵及優點能更明顯易懂，配合所附圖示，做詳細說明如下。In order to make the above and other objects, features and advantages of the present invention more comprehensible, a detailed description is given below with reference to the accompanying drawings.

為充分瞭解本發明之目的、特徵及功效，茲藉由下述具體之實施例，並配合所附之圖式，對本發明做一詳細說明，說明如後。In order to fully understand the purpose, features and effects of the present invention, the present invention will be described in detail through the following specific embodiments and accompanying drawings, as follows.

本發明實施例提供一種回油泵，其零組件可預組裝成四個部件：堵件、活塞件、彈性件和濾件，以便輕易的結合組裝成回油泵。液壓裝置之本體具有複數個連通的設置槽用以分別設置回油泵及其他組件（例如但不限定，馬達、增壓閥、減壓閥等等），其中回油泵以壓裝的方式裝設至本體的其中一個設置槽。由於回油泵的各部件皆具有與本體之設置槽相配合之組合結構，且回油泵藉由設置槽中的密封圈與軸套使回油泵內的各個零組件與本體的結合更穩固，而組裝工序也可簡化。因此，本發明實施例亦提供一種回油泵的組裝方法。The embodiment of the present invention provides an oil return pump, the parts and components of which can be pre-assembled into four parts: a blocking member, a piston member, an elastic member and a filter member, so as to be easily combined and assembled into an oil return pump. The body of the hydraulic device has a plurality of communicating slots for setting the oil return pump and other components (such as but not limited to, motors, booster valves, pressure relief valves, etc.), wherein the oil return pump is installed to the One of the setting slots on the body. Since each part of the oil return pump has a combined structure that matches the setting groove of the body, and the oil return pump uses the sealing ring and the bushing in the setting groove to make the combination of the various components in the oil return pump and the body more stable, and the assembly The process can also be simplified. Therefore, the embodiment of the present invention also provides an assembly method of the oil return pump.

首先，請同時參照圖1、圖2和圖3，分別是本發明實施例之回油泵的示意圖、***圖和組裝至液壓裝置之本體的剖面圖。回油泵40約略為圓柱狀，具有堵頭端和相反之柱塞端，且可分為四個部件：堵件41、彈性件42、活塞件43及濾件44，其中堵件41位於回油泵40之堵頭端，活塞件43位於回油泵40之柱塞端，濾件44連接堵件41和活塞件43，而彈性件42位於堵件41與活塞件43之間。堵件41包括堵頭411、第一彈性元件412、第一球體413及泵體414，其中堵頭411設於回油泵40之堵頭端，第一彈性元件412和第一球體413設於堵頭411內，而泵體414與堵頭411連接，使第一彈性元件412和第一球體413被限制於兩者之間。第一彈性元件412的一端頂著堵頭411，另一端則頂著第一球體413，而第一球體413於一般狀態（例如但不限定，靜止狀態或無作動狀態）下堵著泵體414之通孔4141。泵體414內部具有空間可容置彈性件42。First, please refer to FIG. 1 , FIG. 2 and FIG. 3 , which are a schematic diagram, an exploded view, and a cross-sectional view of a body assembled to a hydraulic device, respectively, of an oil return pump according to an embodiment of the present invention. The oil return pump 40 is roughly cylindrical, has a plug end and an opposite plunger end, and can be divided into four parts: a blocking piece 41, an elastic piece 42, a piston piece 43 and a filter piece 44, wherein the blocking piece 41 is located in the oil return pump The plug end of 40, the piston part 43 is located at the plunger end of the oil return pump 40, the filter part 44 is connected to the plug part 41 and the piston part 43, and the elastic part 42 is located between the plug part 41 and the piston part 43. The plug 41 includes a plug 411, a first elastic element 412, a first ball 413 and a pump body 414, wherein the plug 411 is arranged at the plug end of the oil return pump 40, and the first elastic element 412 and the first ball 413 are arranged at the plug end. Inside the head 411, and the pump body 414 is connected with the plug 411, so that the first elastic element 412 and the first ball 413 are confined therebetween. One end of the first elastic element 412 bears against the plug 411, and the other end bears against the first ball 413, and the first ball 413 blocks the pump body 414 in a normal state (such as but not limited to, a static state or an inactive state). The through hole 4141. There is a space inside the pump body 414 for accommodating the elastic member 42 .

詳細地說，堵頭411約略為內部具有容置空間之圓柱體，其一端具有與容置空間連通之開口，另一端則為封閉面。第一彈性元件412和第一球體413經由堵頭411之開口設於容置空間內。泵體414約略為內部具有容置空間之圓柱體，其一端具有與容置空間連通之開口，另一端則為具通孔4141之封閉面，其中通孔4141連通容置空間。泵體414以具通孔4141之封閉面一端與堵頭411具開口之一端連接，將第一彈性元件412和第一球體413限位於兩者之間，組成堵件41。泵體414具開口之一端設有卡合結構，例如但不限定，凸緣或勾槽，用以連接濾件44。Specifically, the plug 411 is roughly a cylinder with an accommodation space inside, one end of which has an opening communicating with the accommodation space, and the other end is a closed surface. The first elastic element 412 and the first ball 413 are disposed in the accommodation space through the opening of the plug 411 . The pump body 414 is roughly a cylinder with an accommodation space inside, one end has an opening communicating with the accommodation space, and the other end is a closed surface with a through hole 4141, wherein the through hole 4141 communicates with the accommodation space. The closed end of the pump body 414 with the through hole 4141 is connected to the open end of the plug 411 , and the first elastic element 412 and the first ball 413 are limited therebetween to form the plug 41 . The open end of the pump body 414 is provided with an engaging structure, such as but not limited to, a flange or a hook groove, for connecting the filter element 44 .

活塞件43包括活塞431、第二彈性元件432、第二球體433、活塞座閥體434及柱塞435，其中柱塞435設於回油泵40之柱塞端。活塞座閥體434之兩端分別連接活塞431和柱塞435，而第二彈性元件432和第二球體433容設於活塞431與活塞座閥體434之間。第二彈性元件432的一端頂著活塞431，另一端則頂著第二球體433，而於一般狀態下（例如但不限定，靜止狀態或無作動狀態），第二球體433堵著活塞座閥體434之通孔4341。The piston member 43 includes a piston 431 , a second elastic element 432 , a second ball 433 , a piston seat valve body 434 and a plunger 435 , wherein the plunger 435 is disposed at the plunger end of the oil return pump 40 . Both ends of the piston seat valve body 434 are respectively connected to the piston 431 and the plunger 435 , and the second elastic element 432 and the second ball 433 are accommodated between the piston 431 and the piston seat valve body 434 . One end of the second elastic member 432 bears against the piston 431, and the other end bears against the second ball 433, and in a normal state (such as but not limited to, a static state or an inactive state), the second ball 433 blocks the piston seat valve The through hole 4341 of the body 434.

詳細地說，活塞431約略為圓柱形體，內有空間供第二彈性元件432及第二球體433容置其中。活塞431之底端，亦即其容置空間開口之一端，包含一連接結構，用以與活塞座閥體434結合。活塞座閥體434約略為中空圓柱體，其兩端分別為第一連接端和第二連接端，其中兩個連接端分別設有連接結構用以分別與活塞431之底端和柱塞435結合。活塞座閥體434以具有通孔4341之第一連接端連接活塞431之底端，將第二彈性元件432和第二球體433限位於兩者之間。其中，活塞座閥體434之第一連接端的外徑小於活塞431的外徑，所以當活塞431之外壁接觸泵體414之內壁時，活塞座閥體434之外壁不會接觸泵體414，如此當活塞件43作動使活塞431相對泵體414滑動時，僅活塞431與泵體414有相對的運動摩擦。活塞座閥體434以第二連接端連接柱塞435，其中柱塞435約略為圓柱體。如此，活塞431固設於活塞座閥體434之第一連接端，第二彈性元件432和第二球體433設於活塞431和活塞座閥體434之間，活塞座閥體434經由第二連接端和柱塞435連接，組成活塞件43。In detail, the piston 431 is roughly cylindrical, and there is a space therein for the second elastic element 432 and the second ball 433 to be accommodated therein. The bottom end of the piston 431 , that is, the end of the opening of the accommodating space, includes a connection structure for combining with the piston seat valve body 434 . The piston seat valve body 434 is approximately a hollow cylinder, and its two ends are respectively a first connection end and a second connection end, wherein the two connection ends are respectively provided with connection structures for combining with the bottom end of the piston 431 and the plunger 435 respectively . The piston seat valve body 434 is connected to the bottom end of the piston 431 through the first connecting end having the through hole 4341 , and the second elastic element 432 and the second ball 433 are limited therebetween. Wherein, the outer diameter of the first connecting end of the piston seat valve body 434 is smaller than the outer diameter of the piston 431, so when the outer wall of the piston 431 contacts the inner wall of the pump body 414, the outer wall of the piston seat valve body 434 will not contact the pump body 414, In this way, when the piston 43 moves to make the piston 431 slide relative to the pump body 414 , only the piston 431 and the pump body 414 have relative motion friction. The piston seat valve body 434 is connected to a plunger 435 through a second connection end, wherein the plunger 435 is roughly a cylinder. In this way, the piston 431 is fixed on the first connecting end of the piston seat valve body 434, the second elastic element 432 and the second ball 433 are arranged between the piston 431 and the piston seat valve body 434, and the piston seat valve body 434 is connected via the second connection. The end is connected with the plunger 435 to form the piston part 43.

於本實施例中，活塞43具有環狀凸槽4311設於活塞43約略中段的部分，成為活塞43的最大外徑。環狀凸槽4311為一約略呈現向上彎折的裙邊結構，由活塞43之中段的外表面垂直的往外延伸後再轉向往上延伸，使環狀凸槽4311之側外壁約略平行於活塞43之中段外表面且環狀凸槽4311之側內壁與活塞43之中段外表面之間有間隙。環狀凸槽4311之側外壁作為活塞43的最大外徑之表面係用以與泵體414接觸貼合，當活塞431於泵體414內往復運動時，僅環狀凸槽4311之側外壁與泵體414之內壁產生摩擦。另外，環狀凸槽4311的結構可增強活塞431與泵體414之間於往復運動時的密封性。然而，本發明不依此限定活塞43之形狀。In this embodiment, the piston 43 has an annular protruding groove 4311 disposed at approximately the middle section of the piston 43 , which becomes the maximum outer diameter of the piston 43 . The annular convex groove 4311 is a roughly upwardly bent skirt structure, which extends vertically from the outer surface of the middle section of the piston 43 and then turns to extend upward, so that the side outer wall of the annular convex groove 4311 is roughly parallel to the piston 43 There is a gap between the outer surface of the middle section and the side inner wall of the annular convex groove 4311 and the outer surface of the middle section of the piston 43 . The side outer wall of the annular convex groove 4311 is used as the surface of the maximum outer diameter of the piston 43 to be in contact with the pump body 414. When the piston 431 reciprocates in the pump body 414, only the side outer wall of the annular convex groove 4311 and the pump body 414 The inner wall of the pump body 414 creates friction. In addition, the structure of the annular convex groove 4311 can enhance the sealing performance between the piston 431 and the pump body 414 during reciprocating motion. However, the present invention does not limit the shape of the piston 43 accordingly.

於本實施例中，活塞座閥體434之第一連接端與第二連接端的連接結構皆為凹槽，活塞431的底端作為連接結構可置入位於活塞座閥體434之第一連接端的凹槽，而柱塞435之一端則置入位於活塞座閥體434之第二連接端的凹槽。其中，活塞431之底端之連接結構的外徑約略等於或略為大於（較佳地略為大於）活塞座閥體434之第一連接端之連接結構的內徑，使活塞431與活塞座閥體434可緊密結合或過盈配合（較佳地為過盈配合），而柱塞435之外徑約略等於或略為大於（較佳地略為大於）活塞座閥體434之第二連接端之連接結構的內徑，使柱塞435與活塞座閥體434可緊密結合或過盈配合（較佳地為過盈配合），亦即，活塞座閥體434之第二連接端之內徑和柱塞435之外徑經配置以使第二連接端之內壁與駐塞435之外壁貼合。然而，本發明不限定活塞431及活塞座閥體434的連接結構之形式與態樣，亦不限定活塞座閥體434分別與活塞431和柱塞435的連結關係與態樣。In this embodiment, the connection structures of the first connection end and the second connection end of the piston seat valve body 434 are all grooves, and the bottom end of the piston 431 can be inserted into the first connection end of the piston seat valve body 434 as a connection structure. groove, and one end of the plunger 435 is inserted into the groove at the second connecting end of the piston seat valve body 434 . Wherein, the outer diameter of the connection structure of the bottom end of the piston 431 is approximately equal to or slightly greater than (preferably slightly greater than) the inner diameter of the connection structure of the first connection end of the piston seat valve body 434, so that the piston 431 and the piston seat valve body 434 can be tightly combined or interference fit (preferably interference fit), and the outer diameter of the plunger 435 is approximately equal to or slightly larger (preferably slightly larger) than the connection structure of the second connection end of the piston seat valve body 434 The inner diameter of the plunger 435 and the piston seat valve body 434 can be tightly combined or interference fit (preferably an interference fit), that is, the inner diameter of the second connecting end of the piston seat valve body 434 and the plunger The outer diameter of 435 is configured such that the inner wall of the second connection end is in contact with the outer wall of the stopper 435 . However, the present invention does not limit the form and form of the connecting structure of the piston 431 and the piston seat valve body 434 , nor does it limit the connecting relationship and form of the piston seat valve body 434 and the piston 431 and the plunger 435 respectively.

彈性件42位於泵體414的容置空間內，且彈性件42之一端頂著泵體414之容置空間的內壁，另一端則頂著活塞431，用以協助活塞431在活塞件43作動時復位。活塞件43之活塞431與活塞座閥體434的第一連接端位於堵件41之泵體414的容置空間內鄰近泵體414的開口端，其中活塞431之環狀凸槽4311之外徑D1與泵體414之容置空間內徑約略相等，經配置得以於組合後將彈性件42限位於活塞件43和堵件41之間，再透過濾件44連接固定堵件41和活塞件43，組成回油泵40。The elastic member 42 is located in the accommodating space of the pump body 414, and one end of the elastic member 42 is against the inner wall of the accommodating space of the pump body 414, and the other end is against the piston 431 to assist the piston 431 to act on the piston member 43 reset. The first connecting end of the piston 431 of the piston member 43 and the piston seat valve body 434 is located in the accommodating space of the pump body 414 of the blocking member 41 and is adjacent to the opening end of the pump body 414, wherein the outer diameter of the annular convex groove 4311 of the piston 431 is D1 is approximately equal to the inner diameter of the housing space of the pump body 414, and is configured to limit the elastic member 42 between the piston member 43 and the blocking member 41 after being assembled, and then connect the fixed blocking member 41 and the piston member 43 through the filter member 44 , forming the oil return pump 40.

濾件44約略為中空圓柱體，套設於活塞件43之柱塞435並連接堵件41之泵體414，用以過濾油或液體之雜質。濾件44之一端具有卡扣結構，例如但不限定，凸緣或勾槽，用以與泵體414之卡合結構進行卡扣。而濾件44之另一端之內徑約略等於或略為小於柱塞435之外徑，使濾件44套設於柱塞435之外表面後可環設固定於柱塞435之外表面。於本實施例中，濾件44為兩段式的中空柱，配合堵件41和活塞件43的外徑而具有兩個不同的內徑。當組成回油泵40時，活塞件43貫穿濾件44，而濾件44以包覆的方式讓其一端連接泵體414而其另一端套設於柱塞435，固定且連接堵件41與活塞件43。然而，本發明不限定濾件44的形狀與濾件44連接堵件41和活塞件43的方式與配置，於其他實施例中，濾件44套設於柱塞435之一端亦可具有卡扣結構用以卡合固定濾件44於柱塞435上。The filter element 44 is approximately a hollow cylinder, which is sleeved on the plunger 435 of the piston element 43 and connected to the pump body 414 of the blocking element 41, and is used to filter impurities in oil or liquid. One end of the filter element 44 has a buckle structure, such as but not limited to, a flange or a hook groove, for buckling with the buckle structure of the pump body 414 . The inner diameter of the other end of the filter element 44 is approximately equal to or slightly smaller than the outer diameter of the plunger 435 , so that the filter element 44 can be set around and fixed on the outer surface of the plunger 435 after being sleeved on the outer surface of the plunger 435 . In this embodiment, the filter element 44 is a two-stage hollow column, which has two different inner diameters according to the outer diameters of the blocking element 41 and the piston element 43 . When the oil return pump 40 is formed, the piston part 43 penetrates the filter part 44, and the filter part 44 connects one end to the pump body 414 and the other end to the plunger 435 in a covered manner to fix and connect the blocking part 41 and the piston. piece 43. However, the present invention does not limit the shape of the filter element 44 and the way and configuration of the filter element 44 connecting the blocking element 41 and the piston element 43. In other embodiments, the filter element 44 is sleeved on one end of the plunger 435 and may also have a buckle The structure is used to fasten and fix the filter element 44 on the plunger 435 .

於一實施例中，回油泵40包含密封圈45、墊片46及軸套47依序套設於活塞件43之柱塞435，其中，密封圈45位於濾件44與墊片46之間，墊片46位於密封圈45與軸套47之間。於本實施例中，密封圈45、墊片46及軸套47之內徑與柱塞435之外徑約略相等，而密封圈45及墊片46之外徑大於軸套47之外徑，但本發明不依此限定密封圈45、墊片46及軸套47的尺寸和種類。另外，回油泵40更包含設於活塞座閥體434之主體的進油孔4342和設於泵體414具通孔4141一端側壁的出油孔4142，使油可進出回油泵40。In one embodiment, the oil return pump 40 includes a sealing ring 45, a gasket 46 and a shaft sleeve 47 which are sequentially sleeved on the plunger 435 of the piston member 43, wherein the sealing ring 45 is located between the filter member 44 and the gasket 46, The gasket 46 is located between the sealing ring 45 and the shaft sleeve 47 . In this embodiment, the inner diameters of the sealing ring 45, the spacer 46 and the shaft sleeve 47 are approximately equal to the outer diameter of the plunger 435, and the outer diameters of the sealing ring 45 and the spacer 46 are larger than the outer diameter of the shaft sleeve 47, but The present invention does not limit the sizes and types of the sealing ring 45 , the gasket 46 and the shaft sleeve 47 accordingly. In addition, the oil return pump 40 further includes an oil inlet hole 4342 disposed on the main body of the piston seat valve body 434 and an oil outlet hole 4142 disposed on the side wall of the through hole 4141 of the pump body 414 so that oil can enter and exit the oil return pump 40 .

於一實施例中，第一彈性元件412、第二彈性元件432和彈性件42為復位彈簧，第一球體413和第二球體433為鋼珠，濾件44為濾網，密封圈45為X型密封圈，軸套47為黃銅軸套，但本發明不以此為限。In one embodiment, the first elastic element 412, the second elastic element 432 and the elastic member 42 are return springs, the first sphere 413 and the second sphere 433 are steel balls, the filter element 44 is a filter screen, and the sealing ring 45 is an X-shaped The sealing ring and the shaft sleeve 47 are brass shaft sleeves, but the present invention is not limited thereto.

請同時參照圖5，圖5是本發明實施例組裝有回油泵之液壓裝置的剖面圖。當組裝回油泵40於液壓裝置1之本體10的設置槽13時，回油泵40的軸套47、墊片46及密封圈45已先置入本體10的設置槽13，而四個預組裝部件，堵件41、彈性件42、活塞件43及濾件44，已先由分別組裝為各自獨立的部件組合成回油泵40，如此一來，僅需要將組合後之回油泵40置入設置槽13並加以固定密封，即可固設回油泵40於設置槽13中。詳細地說，先將軸套47壓裝入設置槽13，再依序置入墊片46及密封圈45於設置槽13。接著，進行堵件41及活塞件43兩個部件的預組裝，而後組合堵件41、彈性件42、活塞件43及濾件44，形成回油泵40，然後將組裝好之回油泵40壓裝入設置槽13，使密封圈43之外側表面緊密貼合於設置槽13之內壁，將回油泵40固定且達到密封效果。柱塞435未連接活塞座閥體434之一端則進入與設置槽13連通之其他設置槽11並與一驅動單元20傳動連接。最後，以壓鉚的方式將回油泵40固定於本體10。Please refer to FIG. 5 at the same time. FIG. 5 is a cross-sectional view of a hydraulic device assembled with an oil return pump according to an embodiment of the present invention. When assembling the oil return pump 40 in the setting groove 13 of the body 10 of the hydraulic device 1, the shaft sleeve 47, the gasket 46 and the sealing ring 45 of the oil return pump 40 have been inserted into the setting groove 13 of the body 10 first, and the four pre-assembled parts , the blocking member 41, the elastic member 42, the piston member 43 and the filter member 44 have been assembled into the oil return pump 40 by being assembled into independent parts respectively. In this way, it is only necessary to put the assembled oil return pump 40 into the setting groove 13 and be fixed and sealed, the oil return pump 40 can be fixedly installed in the groove 13. In detail, first press the sleeve 47 into the setting groove 13 , and then place the gasket 46 and the sealing ring 45 in the setting groove 13 in sequence. Next, pre-assemble the two components of the blocking piece 41 and the piston piece 43, and then combine the blocking piece 41, the elastic piece 42, the piston piece 43 and the filter piece 44 to form the oil return pump 40, and then press-fit the assembled oil return pump 40 Insert it into the setting groove 13, make the outer surface of the sealing ring 43 closely adhere to the inner wall of the setting groove 13, fix the oil return pump 40 and achieve the sealing effect. The end of the plunger 435 that is not connected to the piston seat valve body 434 enters the other setting groove 11 communicated with the setting groove 13 and is connected to a driving unit 20 in transmission. Finally, the oil return pump 40 is fixed to the main body 10 by pressure riveting.

根據上述回油泵40的結構與配置，除了減少回油泵40的零件數，回油泵40可先預組裝成為四個部件，如此可簡化回油泵40組裝到液壓裝置1之本體10時的步驟及程序。According to the above structure and configuration of the oil return pump 40, in addition to reducing the number of parts of the oil return pump 40, the oil return pump 40 can be pre-assembled into four parts, which can simplify the steps and procedures when the oil return pump 40 is assembled to the body 10 of the hydraulic device 1 .

接下來說明本發明實施例所述之回油泵的組裝流程。請參照圖4，回油泵40適於組裝至具本體10的液壓裝置1，因此於步驟S101中，提供液壓裝置1的本體10，其中本體10已設有設置槽13、進油道101和出油道102。設置槽13具有多段空間，各段空間之內徑不相等，其中空間之配置為由外朝內（本體10之外表面開口朝設置槽13內部延伸的方向）之各段空間的內徑為由大到小地漸縮。Next, the assembly process of the oil return pump described in the embodiment of the present invention will be described. Please refer to FIG. 4, the oil return pump 40 is suitable for being assembled to the hydraulic device 1 with the body 10, so in step S101, the body 10 of the hydraulic device 1 is provided, wherein the body 10 has been provided with a setting groove 13, an oil inlet passage 101 and an outlet. Oil passage 102. The setting groove 13 has multiple sections of space, and the inner diameters of each section of the space are unequal, and the inner diameter of each section of the space configured from the outside to the inside (the opening of the outer surface of the body 10 extends toward the inside of the setting groove 13) is given by Taper from large to small.

接著於步驟S102中，將軸套47壓裝到本體10的設置槽13。軸套47以軸心垂直於本體外表面開口的方向且以過盈組裝的方式置入設置槽13最裡面的空間，亦即設置槽13之內徑最小的一段空間，使至少一部分之軸套47的外壁與設置槽13之內壁緊密配合，將軸套47固設於設置槽13內。步驟S103是把墊片46及密封圈45依序置入設置槽13，使墊片46位於密封圈45和軸套47之間。其中，密封圈45、墊片46及軸套47的軸心約略平行。Then in step S102 , the sleeve 47 is press-fitted into the installation groove 13 of the main body 10 . The shaft sleeve 47 is inserted into the innermost space of the groove 13 with the shaft center perpendicular to the opening of the outer surface of the main body in an interference assembly mode, that is, a space with the smallest inner diameter of the groove 13, so that at least a part of the shaft sleeve The outer wall of 47 fits closely with the inner wall of the setting groove 13, and the shaft sleeve 47 is fixed in the setting groove 13. Step S103 is to put the gasket 46 and the sealing ring 45 into the setting groove 13 in sequence, so that the gasket 46 is located between the sealing ring 45 and the shaft sleeve 47 . Wherein, the axial centers of the sealing ring 45, the gasket 46 and the shaft sleeve 47 are roughly parallel.

於步驟S104中，進行堵件41的組裝，其步驟包含把第一彈性元件412和第一球體413依序置入堵頭411的容置空間內，將泵體414具通孔4141的一端與堵頭411具容置空間開口之一端以干涉配置的方式結合，完成堵件41的組裝。步驟S105是進行活塞件43的組裝，其步驟包括將第二彈性元件432和第二球體433依序置入活塞431中並將活塞431之底端與活塞座閥體434之第一連接端以過盈配置的方式結合，使第二彈性元件432及第二球體433限制於活塞431內。還有，把柱塞435以過盈配置的方式與活塞座閥體434之第二連接端結合，完成活塞件43的組裝。In step S104, the assembly of the plug 41 is carried out, and the steps include placing the first elastic element 412 and the first ball 413 into the accommodating space of the plug 411 in sequence, and connecting the end of the pump body 414 with the through hole 4141 to the One end of the plug 411 with the opening of the accommodating space is combined in an interference arrangement to complete the assembly of the plug 41 . Step S105 is to carry out the assembly of the piston part 43, and its step includes putting the second elastic element 432 and the second ball 433 into the piston 431 in sequence and placing the bottom end of the piston 431 with the first connecting end of the piston seat valve body 434 to The combination of interference configuration makes the second elastic element 432 and the second ball 433 confined in the piston 431 . In addition, the plunger 435 is combined with the second connecting end of the piston seat valve body 434 in an interference arrangement, so as to complete the assembly of the piston member 43 .

於步驟S106中，依序組裝堵件41、彈性件42及活塞件43並套設濾件44連接堵件41及活塞件42，使彈性件42限制於堵件41及活塞件42之間，形成回油泵40。詳細地說，先把彈性件42置入堵件41之泵體414的容置空間內，然後將活塞件43設有活塞431之一端經由泵體414的開口***泵體414的容置空間內，把彈性件42限位於泵體414的容置空間內。活塞431之外徑約略等於泵體414之內徑，經配置以使活塞431可相對泵體414滑動，因此活塞431之部分外壁貼合泵體414之內壁，達到活塞431與泵體414的相對密封，但活塞431仍可在活塞件43作動時藉由活塞件43的作用力與彈性件42的彈力於泵體414之容置空間內往復滑動。再來，把濾件44具卡扣結構之一端朝著活塞件43具柱塞435之一端套設於柱塞435，其中濾件44具卡扣結構之一端越過活塞座閥體434而與泵體414之卡合結構扣合，濾件44之另一端則固設於柱塞435之外表面，如此，透過濾件44即可固定堵件41、彈性件42及活塞件43之間的配置和連接關係，組成回油泵40。In step S106, the blocking piece 41, the elastic piece 42 and the piston piece 43 are assembled in sequence and the filter piece 44 is sleeved to connect the blocking piece 41 and the piston piece 42, so that the elastic piece 42 is limited between the blocking piece 41 and the piston piece 42, An oil return pump 40 is formed. In detail, first put the elastic member 42 into the accommodating space of the pump body 414 of the blocking member 41, and then insert the end of the piston member 43 provided with the piston 431 into the accommodating space of the pump body 414 through the opening of the pump body 414 , to limit the elastic member 42 in the accommodating space of the pump body 414 . The outer diameter of the piston 431 is roughly equal to the inner diameter of the pump body 414, and is configured so that the piston 431 can slide relative to the pump body 414, so that part of the outer wall of the piston 431 fits the inner wall of the pump body 414 to reach the distance between the piston 431 and the pump body 414. Relatively sealed, but the piston 431 can still slide back and forth in the accommodation space of the pump body 414 by the force of the piston 43 and the elastic force of the elastic member 42 when the piston 43 is in motion. Then, one end of the filter element 44 with a snap-fit structure is sleeved on the plunger 435 toward one end of the plunger 435 of the piston part 43, wherein one end of the filter element 44 with a snap-fit structure crosses the piston seat valve body 434 and is connected with the pump The snap-fit structure of the body 414 is fastened, and the other end of the filter element 44 is fixed on the outer surface of the plunger 435. In this way, the arrangement between the blocking element 41, the elastic element 42 and the piston element 43 can be fixed through the filter element 44. And connection relationship, constitute oil return pump 40.

於步驟S107中，壓裝組裝好之回油泵40於設置槽13中，其步驟包含把組裝後之回油泵40以軸心垂直於本體外表面開口的方向且活塞件43之柱塞435朝內地置入設置槽13並以過盈配置的方式預壓到本體10的設置槽13，其中活塞件43之柱塞435貫穿密封圈45、墊片46及軸套47。濾件44固設於柱塞435之一端以過盈配置的方式設於設置槽13內，濾件44這一端的部分外壁與設置槽13的內壁緊密貼合，使活塞件43定位於設置槽13內。另外，泵體414卡於設置槽13內不同的分段空間，使堵件41定位於設置槽13內。In step S107, press-fit the assembled oil return pump 40 into the installation groove 13. The steps include placing the assembled oil return pump 40 with the axis perpendicular to the opening on the outer surface of the body and the plunger 435 of the piston member 43 facing inward. Put it into the setting groove 13 and pre-press it into the setting groove 13 of the body 10 in an interference configuration, wherein the plunger 435 of the piston member 43 penetrates the sealing ring 45 , the gasket 46 and the bushing 47 . The filter element 44 is fixed on one end of the plunger 435 and is set in the setting groove 13 in a manner of interference configuration, and part of the outer wall of the end of the filter element 44 is closely attached to the inner wall of the setting groove 13, so that the piston element 43 is positioned in the setting groove 13. In slot 13. In addition, the pump body 414 is stuck in different segmented spaces in the installation groove 13 , so that the blocking member 41 is positioned in the installation groove 13 .

於一實施例中，回油泵40被壓裝入設置槽13時，透過回油泵40可施力於墊片46與密封圈45，使墊片46與密封45過盈配置於設置槽13中。其主要是利用柱塞435貫穿墊片46與密封圈45的力道加上其與這兩個部件緊密貼合的卡固力來帶動墊片46與密封圈45朝設置槽13的裡面推擠，形成墊片46與密封圈45之外壁分別與設置槽13之內壁緊密貼合的狀況，加強回油泵40於設置槽13中的穩固性和密封性。In one embodiment, when the oil return pump 40 is press-fitted into the installation groove 13 , the oil return pump 40 can exert force on the gasket 46 and the sealing ring 45 , so that the gasket 46 and the seal 45 are interference-disposed in the installation groove 13 . It mainly utilizes the force of the plunger 435 penetrating the gasket 46 and the sealing ring 45 plus the fastening force of the two components to drive the gasket 46 and the sealing ring 45 to push toward the inside of the setting groove 13, The outer wall of the gasket 46 and the sealing ring 45 are closely attached to the inner wall of the installation groove 13 respectively, so as to enhance the stability and sealing performance of the oil return pump 40 in the installation groove 13 .

於一實施例中，當回油泵40置入設置槽13後，於回油泵40的堵頭端（即堵件41之堵頭411）進行壓鉚固定，進而把回油泵40固定於本體10的設置槽13。In one embodiment, after the oil return pump 40 is placed in the installation groove 13, the plug end of the oil return pump 40 (that is, the plug 411 of the plug 41) is riveted and fixed, and then the oil return pump 40 is fixed on the body 10. Set slot 13.

如前所述，回油泵40可分為四個部件進行組裝，其中堵件41與活塞件43為可先行組裝其零組件之部件，於本實施例中，彈性件42與濾件44為單一元件因此不需預組裝，但本發明不依此為限，如果彈性件42與濾件44包含多個零組件，亦可先行組裝成為部件。As mentioned above, the oil return pump 40 can be divided into four parts for assembly, wherein the blocking part 41 and the piston part 43 are parts that can be assembled in advance. In this embodiment, the elastic part 42 and the filter part 44 are a single Therefore, the components do not need to be pre-assembled, but the present invention is not limited thereto. If the elastic member 42 and the filter member 44 include multiple components, they can also be assembled into parts in advance.

另外，堵件41、活塞件43及回油泵40於本實施例中是分別於回油泵40組裝至液壓裝置1的本體10前進行預組裝（如步驟S104及S105）及組裝（如步驟S106），但本發明不依此限定堵件41、彈性件42、活塞件43及濾件44的組裝順序，只要在回油泵40組裝至本體10前已組裝好即可，相同地，本發明不依此限定組裝回油泵40的步驟時間點，亦可在組裝軸套47到本體前先行組裝回油泵40。In addition, in this embodiment, the blocking member 41, the piston member 43 and the oil return pump 40 are pre-assembled (such as steps S104 and S105) and assembled (such as step S106) respectively before the oil return pump 40 is assembled to the body 10 of the hydraulic device 1 , but the present invention does not limit the assembly sequence of the blocking member 41, the elastic member 42, the piston member 43 and the filter member 44, as long as the oil return pump 40 is assembled before the body 10 is assembled, the same, the present invention is not limited accordingly At the time of assembling the oil return pump 40, the oil return pump 40 may be assembled before the shaft sleeve 47 is assembled to the main body.

在回油泵40組裝到本體10的設置槽13後，設置槽13鄰近本體10之進油道101的位置形成有與活塞件43相通之進油腔室，而設置槽13鄰近本體10之出油道102的位置形成有與堵件41相通之出油腔室，其中，液壓裝置1內之致動液體(例如但不限定，油)可經由本體10的進油道101進入進油腔室，通過活塞座閥體434之進油孔4342流入活塞件43，當第二球體433因受力而移離通孔4341時，致動液體由通孔4341和活塞431之孔洞流入堵件41的泵體414。當第一球體413因受力而移離通孔4141時，致動液體透過通孔4141和出油孔4142流入出油腔室並由出油道102排出回油泵40。置動液體的流動取決於回油泵40的作動，而回油泵40由驅動單元20驅使活塞件43作動，進而產生內部的高低壓及元件的錯位，啟動置動液體的流向。After the oil return pump 40 is assembled to the setting groove 13 of the body 10, the position where the setting groove 13 is adjacent to the oil inlet passage 101 of the body 10 forms an oil inlet chamber communicated with the piston member 43, and the setting groove 13 is adjacent to the oil outlet of the body 10 The position of the channel 102 forms an oil outlet chamber communicating with the blocking member 41, wherein the actuating liquid (such as but not limited to, oil) in the hydraulic device 1 can enter the oil inlet chamber through the oil inlet channel 101 of the body 10, The oil inlet hole 4342 of the piston seat valve body 434 flows into the piston member 43. When the second ball 433 moves away from the through hole 4341 due to force, the actuating liquid flows into the pump of the blocking member 41 from the through hole 4341 and the hole of the piston 431. Body 414. When the first ball 413 moves away from the through hole 4141 due to the force, the actuating liquid flows into the oil outlet chamber through the through hole 4141 and the oil outlet hole 4142 and is discharged from the oil return pump 40 through the oil outlet passage 102 . The flow of the displacement liquid depends on the operation of the oil return pump 40, and the oil return pump 40 is driven by the drive unit 20 to actuate the piston 43, thereby generating internal high and low pressures and misalignment of components to start the flow of the displacement liquid.

於一實施例中，液壓裝置1是防煞車鎖死裝置，本體10為底座，驅動單元20為馬達，藉由設於本體10且連通的設置槽11、13，回油泵40可傳動連接馬達，而傳動連接為馬達透過與回油泵40之間的元件配置，例如但不限定，軸承與轉動元件，在運轉時驅動轉動元件並間接地帶動回油泵作動。本發明不依此限定裝置與單元的種類與配置方式。In one embodiment, the hydraulic device 1 is an anti-brake lock-up device, the body 10 is a base, and the driving unit 20 is a motor. Through the connecting grooves 11 and 13 arranged on the body 10, the oil return pump 40 can be connected to the motor through transmission. The transmission connection is that the motor passes through components configured with the oil return pump 40 , such as but not limited to, bearings and rotating elements, which drive the rotating elements and indirectly drive the oil return pump to operate during operation. The present invention does not limit the types and configurations of devices and units accordingly.

綜合以上所述，相較於昔知技術，本發明實施例所述之回油泵與組裝方法之技術效果，係說明如下。Based on the above, compared with the prior art, the technical effects of the oil return pump and the assembly method described in the embodiment of the present invention are explained as follows.

昔知技術中，液壓裝置的多個零組件（例如回油泵）採用焊接的方式固定和密封零組件，但焊接的好壞會直接影響零組件的密封性，且焊接的接點不耐震也不耐高溫，使得在操作液壓裝置時會有安全性的疑慮。反觀本發明實施例所述之回油泵，其利用零組件的結構簡化組合關係，無需使用焊接的方式即可用壓鉚的技術達到所需的密封性，確保零組件不會因高速運作產生的震動與高溫而損壞或斷裂。再者，本發明所述之組裝方法，其中的回油泵可預組裝成四個部件，可減少組裝到本體的工序，進而增進組裝的效率。In the known technology, multiple parts of the hydraulic device (such as the oil return pump) are fixed and sealed by welding, but the quality of the welding will directly affect the sealing performance of the parts, and the welded joints are not shock-resistant or not High temperature resistance makes there are safety concerns when operating hydraulic devices. In contrast, the oil return pump described in the embodiment of the present invention uses the structure of the components to simplify the combination relationship, and can use the pressure riveting technology to achieve the required sealing without welding, so as to ensure that the components will not vibrate due to high-speed operation Damaged or fractured by high temperature. Furthermore, in the assembling method of the present invention, the oil return pump can be pre-assembled into four parts, which can reduce the process of assembling to the main body, thereby improving the efficiency of assembling.

本發明在上文中已以較佳實施例揭露，然熟習本項技術者應理解的是，上述實施例僅用於描繪本發明，而不應解讀為限制本發明之範圍。應注意的是，舉凡與前述實施例等效之變化與置換，均應設為涵蓋於本發明之範疇內。因此，本發明之保護範圍當以申請專利範圍所界定者為準。The present invention has been disclosed above with preferred embodiments, but those skilled in the art should understand that the above embodiments are only for describing the present invention and should not be interpreted as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to those of the foregoing embodiments should be included within the scope of the present invention. Therefore, the scope of protection of the present invention should be defined by the scope of the patent application.

1:液壓裝置 10:本體 11:設置槽 13:設置槽 20:驅動單元 40:回油泵 41:堵件 42:彈性件 43:活塞件 44:濾件 45:密封圈 46:墊片 47:軸套 101:進油道 102:出油道 411:堵頭 412:第一彈性元件 413:第一球體 414:泵體 431:活塞 432:第二彈性元件 433:第二球體 434:活塞座閥體 435:柱塞 4141:通孔 4142:出油孔 4311:環狀凸槽 4341:通孔 4342:進油孔 S101~S107:流程步驟 1: Hydraulic device 10: Ontology 11: Setting slot 13: Setting slot 20: Drive unit 40: Oil return pump 41: Blocking piece 42: Elastic parts 43:Piston parts 44: filter element 45: sealing ring 46: Gasket 47: shaft sleeve 101: oil inlet passage 102: oil outlet 411: Plug 412: the first elastic element 413: The first sphere 414: pump body 431: Piston 432: second elastic element 433:Second sphere 434: Piston Seat Valve Body 435: plunger 4141: Through hole 4142: oil outlet 4311: Annular convex groove 4341: Through hole 4342: oil inlet hole S101~S107: Process steps

圖1是本發明實施例之回油泵的示意圖。Fig. 1 is a schematic diagram of an oil return pump according to an embodiment of the present invention.

圖2是本發明實施例之回油泵的***圖。Fig. 2 is an exploded view of the oil return pump of the embodiment of the present invention.

圖3是本發明實施例之回油泵組裝至液壓裝置本體的剖面圖Figure 3 is a cross-sectional view of the oil return pump assembled to the body of the hydraulic device according to the embodiment of the present invention

圖4是本發明實施例之回油泵組裝方法的流程圖。Fig. 4 is a flow chart of the method for assembling the oil return pump according to the embodiment of the present invention.

圖5是本發明實施例之液壓裝置的剖面圖。Fig. 5 is a sectional view of a hydraulic device according to an embodiment of the present invention.

40:回油泵 40: Oil return pump

41:堵件 41: Blocking piece

42:彈性件 42: Elastic parts

43:活塞件 43:Piston parts

44:濾件 44: filter element

45:密封圈 45: sealing ring

46:墊片 46: Gasket

47:軸套 47: shaft sleeve

411:堵頭 411: Plug

412:第一彈性元件 412: the first elastic element

413:第一球體 413: The first sphere

414:泵體 414: pump body

431:活塞 431: Piston

432:第二彈性元件 432: second elastic element

433:第二球體 433:Second sphere

434:活塞座閥體 434: Piston Seat Valve Body

435:柱塞 435: plunger

4142:出油孔 4142: oil outlet

4342:進油孔 4342: oil inlet hole

Claims

一種回油泵，包括：一堵件，包括：一堵頭；連接該堵頭之一泵體；一第一彈性元件，設於該堵頭和該泵體之間；以及一第一球體，設於該第一彈性元件和該泵體之間；一活塞件，包括：一活塞；一連接該活塞之活塞座閥體；一第二彈性元件，設於該活塞和該活塞座閥體之間；一第二球體，設於該第二彈性元件和該活塞座閥體之間；以及連接該活塞座閥體之一柱塞；一彈性件，設於該堵件和該活塞件之間；以及一濾件，套設於該活塞件之該柱塞並連接該堵件之該泵體。 An oil return pump, comprising: A block piece, including: a plug; Connect one of the plugs to the pump body; a first elastic element is arranged between the plug and the pump body; and a first ball, located between the first elastic element and the pump body; A piston member, comprising: a piston; a piston seat valve body connected to the piston; A second elastic element is arranged between the piston and the piston seat valve body; a second ball disposed between the second elastic element and the piston seat valve body; and a plunger connected to one of the piston seat valve bodies; an elastic member is arranged between the blocking member and the piston member; and A filter element is sheathed on the plunger of the piston element and connected to the pump body of the blocking element.

如請求項1所述之回油泵，更包括：一密封圈，套設於該柱塞；一墊片，套設於該柱塞；以及一軸套，套設於該柱塞；其中，該密封圈位於該濾件與該墊片之間，該墊片位於該密封圈與該軸套之間。 The oil return pump as described in claim 1 further includes: a sealing ring sleeved on the plunger; a gasket fits over the plunger; and a shaft sleeve sleeved on the plunger; Wherein, the sealing ring is located between the filter element and the gasket, and the gasket is located between the sealing ring and the shaft sleeve.

如請求項2所述之回油泵，其中該彈性件、該第一彈性元件和該第二彈性元件為彈簧，該第一球體和該第二球體為鋼珠，該濾件為濾網，該密封圈為X型密封圈，該軸套為黃銅軸套。The oil return pump according to claim 2, wherein the elastic member, the first elastic element and the second elastic element are springs, the first ball and the second ball are steel balls, the filter element is a filter screen, and the seal The ring is an X-shaped sealing ring, and the bushing is a brass bushing.

如請求項1所述之回油泵，其中該活塞之外徑與該泵體之內徑經配置以使該活塞可相對該泵體滑動。The oil return pump according to claim 1, wherein the outer diameter of the piston and the inner diameter of the pump body are configured such that the piston can slide relative to the pump body.

如請求項1所述之回油泵，其中該活塞座閥體之第一連接端和第二連接端分別與該活塞和該柱塞連接，該第一連接端之外徑小於該活塞之外徑，該第二連接端之內徑與該柱塞之外徑經配置以使該第二連接端之內壁與該柱塞之外壁貼合。The oil return pump according to claim 1, wherein the first connecting end and the second connecting end of the piston seat valve body are respectively connected to the piston and the plunger, and the outer diameter of the first connecting end is smaller than the outer diameter of the piston , the inner diameter of the second connecting end and the outer diameter of the plunger are configured such that the inner wall of the second connecting end is in contact with the outer wall of the plunger.

如請求項第1項所述之回油泵，更包括設於該活塞座閥體之進油孔和設於該泵體之出油孔。The oil return pump as described in item 1 of the claim further includes an oil inlet hole arranged on the piston seat valve body and an oil outlet hole arranged on the pump body.

一種如請求項1所述之回油泵的組裝方法，適用於一具有設置槽之裝置，組裝方法包括：壓裝一軸套於該裝置之該設置槽中；依序置入一墊片及一密封圈於該裝置之該設置槽中；組裝該堵件；組裝該活塞件；依序組裝該堵件、該彈性件及該活塞件並套設該濾件連接該堵件及該活塞件，使該彈性件限制於該堵件及該活塞件之間，以組成該回油泵；以及壓裝該組裝好之回油泵於該裝置之該設置槽中，使該活塞件之該柱塞貫穿該密封圈、該墊片及該軸套。 An assembly method of the oil return pump as described in claim 1, which is suitable for a device with a setting groove, the assembly method includes: Press-fit a shaft sleeve in the setting groove of the device; Put a gasket and a sealing ring in the installation groove of the device in sequence; Assemble the blocking member; assemble the piston member; Assemble the blocking piece, the elastic piece, and the piston piece in sequence and sleeve the filter piece to connect the blocking piece and the piston piece, so that the elastic piece is limited between the blocking piece and the piston piece to form the oil return pump ;as well as Press-fit the assembled oil return pump in the setting groove of the device, so that the plunger of the piston part passes through the sealing ring, the gasket and the shaft sleeve.

如請求項7所述之組裝方法，更包括將該回油泵壓鉚固定於該裝置之該設置槽中。The assembly method as described in Claim 7 further includes pressing and fixing the oil return pump in the installation groove of the device.

如請求項7所述之組裝方法，其中壓裝該組裝好之回油泵於該設置槽的步驟包括施力於該墊片與該密封圈使該墊片與該密封圈過盈配置於該設置槽中。The assembly method as described in claim 7, wherein the step of press-fitting the assembled oil return pump in the setting groove includes applying force to the gasket and the sealing ring so that the gasket and the sealing ring are interferingly arranged in the setting in the slot.

如請求項7所述之組裝方法，其中該彈性件、該第一彈性元件和該第二彈性元件為彈簧，該第一球體和該第二球體為鋼珠，該濾件為濾網，該密封圈為X型密封圈，該軸套為黃銅軸套。The assembly method as described in claim 7, wherein the elastic member, the first elastic element and the second elastic element are springs, the first sphere and the second sphere are steel balls, the filter element is a filter screen, and the sealing The ring is an X-shaped sealing ring, and the bushing is a brass bushing.