CN102352841A

CN102352841A - Gear pump for food processing

Info

Publication number: CN102352841A
Application number: CN2011103406066A
Authority: CN
Inventors: 白云
Original assignee: CHANGSHU WEIMA DIARY MACHINERY Co Ltd
Current assignee: Weima Automation Equipment Changshu Co ltd
Priority date: 2011-11-02
Filing date: 2011-11-02
Publication date: 2012-02-15
Anticipated expiration: 2031-11-02
Also published as: CN102352841B

Abstract

The invention discloses a gear pump for food processing, belonging to the field of mechanical technology for food processing. The gear pump comprises a front pump body, a rear pump body, a chain ring and a transmission shaft; a chain ring shaft of the chain ring extends towards one side of the rear pump body; and the chain ring shaft is connected with the transmission shaft. The gear pump is characterized in that one end of the chain ring shaft towards the transmission shaft forms a tenon; a bolt fixing hole is formed on the tenon; the center of the transmission shaft is axially provided with a bolt hole, and one end of the transmission shaft towards the chain ring form a connection shaft head; the connection shaft head is internally provided with a tenon chamber and a shaft chamber; a bolt is screwed in the bolt hole and screwed in the bolt fixing hole, so that the tenon and the transmission shaft are fixed; one end of the front pump body towards the rear pump body forms a first shaft base plate concave cavity; one end of the rear pump body towards the front pump body form a second shaft base plate concave cavity; the first shaft base plate concave cavity and the second shaft base plate concave cavity are matched, and shaft seat plates are contained in the first shaft base plate concave cavity and the second shaft base plate concave cavity; a chain ring shaft matching hole is formed on the center of each shaft seat plate and each chain ring shaft is sleeved in the chain ring shaft matching hole. The reliable matching of the chain ring and the transmission can be ensured; the hopping condition of the chain ring can not happen in the moving process; and the gear pump is convenient to manufacture.

Description

Gear pump for food processing

Technical field

The invention belongs to the food processing machinery technical field, be specifically related to a kind of gear pump for food processing

Background technique

about the technical information of gear pump for food processing number be 201010177998.4 in disclosed one Chinese patent application, name is called in the specification of " gear pump for food processing of architecture advances " and done detailed record (this patent application is proposed by the applicant); This patent application scheme can be guaranteed the stationarity of chain wheel motion and avoid vibration; Thereby can avoid the friction between chain wheel end face and the eccentric reel end face and prevent the wearing and tearing between the pump chamber of the chain wheel external diameter and the pump housing, specifically can be referring to 4 page of the 6th row in Instructions Page 2 summary of the invention hurdle to the of this patent application.

Still there are following 2 deficiencies in still above-mentioned 201010177998.4 technological schemes that provide: the one, and transmission shaft cooperates with the chain wheel axle loses rationality; Cause both concentricity shortcomings; Chain wheel can produce the phenomenon of radial-play (beating) in movement process, the fiting effect of influence and star wheel; The 2nd, the difficulty of processing of the forward and backward pump housing is big, is difficult to adapt to the industrial amplification production requirement.Reflect this, the applicant has done useful design, and the technological scheme that will introduce is based on producing under this prerequisite below

Summary of the invention

task of the present invention is to provide the fiting effect between a kind of chain wheel axle that helps significantly to improve transmission shaft and chain wheel and uses the situation of avoiding chain wheel circular runout in movement process, to occur and become simple with the processing that helps making the forward and backward pump housing and use and satisfy the gear pump for food processing that industrial amplification production requires.

the present invention is to so to complete, a food processing using a gear pump, including connected to each other before and after the pump, the pump is rotatably disposed on the front of the tooth cavity of the first pump stretching to the rear panel and the rear pump cavity pump shaft, wherein: dental plate extending toward the rear side of the pump there is a dental plate axis, the probe into the rear axle crankset pump cavity with said drive shaft connection, characterized in that: said crankset shaft at one end of said shaft towards the end face constitutes a tongue, and on the tongue is provided with a bolt fixing holes, the axial center of said drive shaft having a bolt hole, and the shaft toward the end of tooth plate constitute a connecting shaft, the connecting shaft head constitute a tenon chamber and an axial bore, which is located in the cavity axis connecting shaft head towards the dental plate of an end to end portion, said mortise and tenon joints with cavities, and said cavity crankset compatible with the shaft axis, said bolt hole and the bolt holes corresponding to the bolt by bolt screwed into the holes and screw and bolt holes in The tenon is fixedly connected with the drive shaft; pump in said front face and said rear end of the pump before the pump is located in the cavity of the mouth cavity has a first shaft portion constitutes seat plate cavity, while in the latter the pump toward the front pump and is located on the rear end of the body cavity of the mouth parts of the pump chamber has a second shaft constituting seat plate cavity, the first and second shaft base plate cavity with each other and there is a shaft seat plate to accommodate the shaft base plate is provided with a central tooth plate shaft with the hole, the dental plate mounted on the shaft with the hole cover dental plate shaft.

in a concrete embodiment of the present invention, the shape of cross section of described tenon is rectangular, and described tenon chamber is rectangle tenon chamber.

are provided with a seal ring on described chain wheel axle and in the position corresponding to described chain wheel axle matching hole in another concrete embodiment of the present invention, the sealing circle contacts with the hole wall of chain wheel axle matching hole.

are in another concrete embodiment of the present invention; On the dish edge of described axle bed dish, offer a positioning hole; Locate screw hole and on the pump housing of described back and in position, offer one corresponding to positioning hole; On this positioning screw hole, be equipped with a location screw, this positioning screwn screws in the described positioning hole.

technological scheme provided by the invention is owing to constitute tenon on the chain wheel axle; And on tenon, offered the bolt hole; On the connection spindle nose of transmission shaft, constitute tenon chamber and axocoel; Tenon is cooperated with the tenon fourth of the twelve Earthly Branches, tenon chamber; The chain wheel axle is matched with axocoel; And tenon is connected with transmission shaft through bolt hole by bolt, thereby can guarantees the reliable fiting effect of chain wheel and transmission shaft, chain wheel the situation of beating can not occur in movement process; Owing on the preceding pump housing, constitute the first axle bed dish cavity; And on the pump housing of back, constitute the second axle bed dish cavity; And in first, second axle bed dish cavity, be installed with the axle bed dish; Thereby the forward and backward pump housing chamber of the forward and backward pump housing is increased at the course of working split shed, make processing become more convenient with respect to prior art.

Description of drawings

Fig. 1 is the embodiments of the invention structural drawing.

Fig. 2 is sectional view and the application examples schematic representation of Fig. 1.

Embodiment

can be expressly understood technical spirit of the present invention and beneficial effect more for the auditor that the makes Patent Office especially public; The claimant general elaborates with embodiment's mode below; But the description to embodiment all is not the restriction to the present invention program, any according to the present invention design done only for pro forma but not substantial equivalent transformation all should be considered as technological scheme category of the present invention.

Fig. 1 is asked for an interview in ; The pump housing 1 and a back pump housing 2 before having provided one; This forward and backward pump housing 1,2 is linked together by one group of connecting bolt 13 of Fig. 2 signal each other; One chain wheel 3 is arranged in the front pump body cavity 11 of the preceding pump housing 1 rotationally; Side at this chain wheel 3 pump housing 2 towards the back constitutes a chain wheel axle 31; Surface in this chain wheel axle 31 one side of the pump housing 2 towards the back constitutes a tenon 311; The shape of cross section of this tenon 311 is rectangular, and on this tenon 311, offers a bolt hole 3111.On chain wheel axle 31, also set (being nested with) a preferred seal ring 312 of being filled the post of by rubber is earlier arranged.Constitute the first logical axle bed dish cavity 12 of ring one at an end of the preceding pump housing 1 pump housing 2 and the accent position that is positioned at front pump body cavity 11 towards the back again.The pump housing 2 constitutes the second logical axle bed dish cavity 22 of ring one equally towards end of the preceding pump housing 1 and the position that is positioned at the accent in pump housing chamber, back 21 and in the back; After being fitted to each other, first, second axle bed dish cavity 12,22 forms the axle bed dish receiving cavity of an integral body; And be installed with an axle bed dish 5 in the said axle bed dish receiving cavity that forms in these first, second 12,22 common cooperations of axle bed dish cavity, aforesaid forward and backward pump housing chamber 11,21 separated by this axle bed dish 5.Central authorities at axle bed dish 5 offer a chain wheel axle matching hole 51; By this chain wheel axle matching hole 51 axle bed dish 5 is placed on the chain wheel axle 31; And the hole wall by aforesaid seal ring 312 and chain wheel axle matching hole 51 forms sealing, avoids forward and backward pump housing chamber 11, ganging up between 21.

since axle bed dish 5 be when 1,2 assemblings of the forward and backward pump housing, just be installed on the chain wheel axle 31 and corresponding in first, second axle bed dish cavity 12,22; Therefore the processing to forward and backward pump chamber 11,21 seems very convenient in to the manufacture process of the forward and backward pump housing 1,2; Because before the axle bed dish 5 of not packing into, the space of forward and backward pump chamber 11,21 is relatively large.

preferably; On the dish edge of axle bed dish 5, offer a positioning hole 52; And on the pump housing 2 of back, offer a location screw hole 23, this positioning screw hole 23 is corresponding with positioning hole and pass through positioning screwn 231 screw-in positioning holes 52, thereby with axle bed dish 5 location.

aforesaid chain wheel axle 31 leans out axle bed dish 5 and is stretched in the pump housing chamber, back 21 and is in transmission connection with power transmission shaft 4; One end of power transmission shaft 4 shown in Figure 1 is that left end and actuating unit 6(Fig. 2 show) be in transmission connection; And the other end to be right-hand member be supported in the pump housing chamber, back 21 by bearing 43 rotationally; Promptly constitute the connection spindle nose 42 of a diameter at the right-hand member of this power transmission shaft 4 greater than the diameter of power transmission shaft 4 self towards an end of the preceding pump housing 1; In this connection spindle nose 42, promptly in the spindle nose chamber that connects spindle nose 42, constitute a rectangular shape and tenon chamber 421 that match with aforesaid tenon 311, and also constitute an axocoel 422 that communicates with tenon chamber 421 at the end that connects spindle nose 42.During assembling; Tenon 311 is inserted tenon chamber 421 makes tenon 311 cooperate with the 421 tenon fourths of the twelve Earthly Branches, tenon chamber; And make the left end of chain wheel axle 31 insert axocoel 422; Screw in aforesaid bolt hole 3111 with the bolt hole 41 of bolt 411 then, thereby whole chain wheel 3 is in transmission connection with transmission shaft 4 through the axial central authorities that are opened in transmission shaft 4.So the strong point of structure is: when transmission shaft 4 work and 3 rotations of drive chain wheel, can ensure both concentricitys, chain wheel 3 the jumping phenomenon of quivering can not occur, and promptly can ensure the robust motion of chain wheel 3.

Ask for an interview Fig. 2; In Fig. 2, illustrated the state that chain wheel teeth 32 on the chain wheel 3 matches with star wheel 7; Because the working principle of gear pump for food processing of the present invention belongs to known technology; For example can through to prior to the disclosed application number of the application be 201010177998.4,201010178005.5,101020522792.6 and the reading of 201020522795.X etc. obtain understanding, so the claimant is no longer superfluous and

Claims

1. a food processing using a gear pump, including connected to each other before and after the pump (2), rotatably provided on the front body (1) the first pump chamber (11) the tooth plate (3) and extending to the rear body (2) after the pump chamber (21) within the shaft (4), wherein: tooth plate (3) toward the rear body (2) extending on one side of a crankset shaft (31), the dental plate shaft (31) after the probe into the pump chamber (21) within said drive shaft (4) drive connection, wherein: said crankset shaft (31) toward the said drive shaft (4) constitutes the end surface of one end of a tongue (311) and the tongue (311) is provided with a bolt on the fixing holes (3111), said drive shaft (4) having a bolt axial center hole (41), and the drive shaft (4) towards the tooth plate (3) constituting one end of a connecting shaft head (42), the connection shaft (42) having a tenon formed within the cavity (421) and a shaft cavity (422), wherein the axial bore (422) in the connection shaft (42) toward the tooth plate (3) an end to end portion, said tongue (311) and wedge cavity (421) with the tenon, and said crankset shaft (31) and the axial bore (422) cooperating, said bolt holes (3111) and said bolt hole (41) corresponds, by bolts (411) screwed into the bolt hole (41) and rotary and the bolt fixing holes (3111) and the tongue (311) of the drive shaft (4) is fixedly connected; in said front body (1) toward said rear body (2) and the front end of the pump chamber ( 11) constituting part of the cavity of the mouth has a first shaft retainer plate cavity (12), and the rear body (2) toward the front body (1) and the rear end of the pump chamber (21) form a cavity having a mouth parts The second shaft base plate cavity (22), the first and second shaft base plate cavity (12, 22) with each other and accommodates a shaft seat plate (5), the shaft seat plate (5) is provided with a central tooth plate shaft with the hole (51), the dental plate shaft with holes (51) disposed on crankset shaft sleeve (31) on.

2. gear pump for food processing according to claim 1 is characterized in that the shape of cross section of described tenon (311) is rectangular, and described tenon chamber (421) is rectangle tenon chamber.

3. gear pump for food processing according to claim 1; It is characterized in that upward and in the position corresponding to described chain wheel axle matching hole (51) being provided with a seal ring (312) at described chain wheel axle (31), sealing circle (312) contacts with the hole wall of chain wheel axle matching hole (51).

4. Gear pump for food processing according to claim 1; It is characterized in that on the dish edge of described axle bed dish (5), offering a positioning hole (52); Locate screw hole (23) and on the described back pump housing (2) and in position, offer one corresponding to positioning hole (52); On this positioning screw hole (23), be equipped with a location screw (231), this positioning screwn (231) screws in the described positioning hole (52)