CN212272476U

CN212272476U - Return stroke dish structure for plunger pump

Info

Publication number: CN212272476U
Application number: CN202020691604.6U
Authority: CN
Inventors: 余倡合; 易灵辉; 余志超
Original assignee: Guangzhou Halcyon Hydraulic Co ltd
Current assignee: Guangzhou Halcyon Hydraulic Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-01-01
Anticipated expiration: 2030-04-29

Abstract

The utility model belongs to the plunger pump field, concretely relates to return stroke dish structure for plunger pump, including installing the return stroke dish on sloping cam plate right side, the bearing groove has been seted up to the center department of return stroke dish, the through-hole has been seted up to the left end of return stroke dish, the draw-in groove has been seted up to the edge of return stroke dish, install the fixture block in the draw-in groove, the bearing is installed to the bearing inslot, the mounting has slided in the bearing and has cup jointed, the mounting passes through threaded connection with the sloping cam plate, the right-hand member of mounting is provided with the dog, mounting and dog formula. The utility model discloses an integral type structure support piece that the edge department installation of return stroke dish comprises fixture block, bracing piece and supporting shoe, and the cooperation through the ring channel of design on supporting shoe and the sloping cam plate can carry out the auxiliary stay to the return stroke dish, improves the atress of return stroke dish, has improved the life of return stroke dish for return stroke dish non-deformable.

Description

Return stroke dish structure for plunger pump

Technical Field

The utility model relates to a plunger pump technical field specifically is a return stroke dish structure for plunger pump.

Background

The plunger pump is an important device of the hydraulic system. The plunger reciprocates in the cylinder body to change the volume of the sealed working cavity so as to absorb and press oil. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like, and is widely applied to occasions with high pressure, large flow and flow needing regulation, such as hydraulic machines, engineering machinery and ships.

The plunger pump is provided with important parts such as a swash plate, a sliding shoe, a return disc and a plunger, wherein the return disc is used for mounting the sliding shoe, so that the sliding shoe can drive the plunger to do reciprocating motion. However, the traditional return disc is mostly in a thin-wall disc body structure, the structural strength of the traditional return disc is not high enough, and the sliding shoe is easy to deform and even reaches the fatigue strength limit quickly due to the fact that the sliding shoe has periodic thrust and tension to the sliding shoe in the working process, so that the service life is shortened. Accordingly, there is a need for improvements in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plunger pump is with return stroke dish structure has solved current plunger pump return stroke dish and has taken place the problem of warping in the course of the work to the life of return stroke dish has been improved.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a return stroke dish structure for plunger pump, is including installing the return stroke dish on sloping cam plate right side, the bearing groove has been seted up to the center department of return stroke dish, the through-hole has been seted up to the left end of return stroke dish, the draw-in groove has been seted up to the edge department of return stroke dish, install the fixture block in the draw-in groove, the bearing is installed to the bearing inslot, the mounting has slided in the bearing and has cup jointed, the mounting passes through threaded connection with the sloping cam plate, the right-hand member of mounting is provided with the dog, mounting and dog formula structure as an organic whole, slide shoe has slided in the return stroke dish, the surface contact of slided shoe and sloping cam plate, it has the plunger to articulate in the.

Preferably, the left end of the swash plate is fixedly connected with a connecting sleeve, a main shaft is installed inside the connecting sleeve, a first bolt is sleeved in the connecting sleeve in a sliding mode and is connected with the main shaft through threads.

Preferably, the surface of the swash plate is provided with an annular groove, and the annular groove is connected with a supporting block in a sliding manner.

Preferably, round holes are formed in the return disc, the number of the round holes is six, and the six round holes are arranged on the return disc in an annular array.

Preferably, a second bolt is sleeved in the return disc in a sliding mode and is connected with the clamping block through threads.

Preferably, the clamping block, the supporting rod and the supporting block are of an integrated structure.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses an integral type structure support piece that the edge department installation of return stroke dish comprises fixture block, bracing piece and supporting shoe, and the cooperation through the ring channel of design on supporting shoe and the sloping cam plate can carry out the auxiliary stay to the return stroke dish, improves the atress of return stroke dish, has improved the life of return stroke dish for return stroke dish non-deformable.

2. The utility model discloses a locate to design dedicated bearing groove at the center of return stroke dish, through bearing groove installation bearing, bearing internally mounted mounting, through the installation of mounting and the cooperation of bearing for sloping cam plate running resistance is littleer.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure of part A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure of the portion B of FIG. 1 according to the present invention;

fig. 4 is a view of the return plate C of fig. 1 according to the present invention.

In the figure: 1. a swash plate; 2. connecting sleeves; 3. a main shaft; 4. a first bolt; 5. an annular groove; 6. a return disk; 61. a circular hole; 7. a bearing groove; 8. a through hole; 9. a card slot; 10. a bearing; 11. a fixing member; 12. a stopper; 13. a slipper; 14. a plunger; 15. a clamping block; 16. a second bolt; 17. a support bar; 18. and (7) a supporting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, a return stroke disc structure for a plunger pump includes a return stroke disc 6 installed on the right side of a swash plate 1, a bearing groove 7 is formed in the center of the return stroke disc 6, a through hole 8 is formed in the left end of the return stroke disc 6, a clamping groove 9 is formed in the edge of the return stroke disc 6, a clamping block 15 is installed in the clamping groove 9, the clamping block 15 is conveniently installed through the design of the clamping groove 9, a bearing 10 is installed in the bearing groove 7, a fixing member 11 is slidably sleeved in the bearing 10, the fixing member 11 is in threaded connection with the swash plate 1, a stop block 12 is arranged at the right end of the fixing member 11, the fixing member 11 and the stop block 12 are of an integrated structure, a sliding shoe 13 is slidably sleeved in the return stroke disc 6, the sliding shoe 13 is in contact with the surface of the swash plate 1, a plunger 14 is hinged in the sliding shoe 13, the plunger 14, the surface of the support bar 17 is fixedly connected with a support block 18.

Referring to fig. 1, a connecting sleeve 2 is fixedly connected to the left end of a swash plate 1, a main shaft 3 is installed inside the connecting sleeve 2, a first bolt 4 is slidably sleeved in the connecting sleeve 2, and the first bolt 4 is in threaded connection with the main shaft 3. The connecting sleeve 2 can be fixedly arranged on the main shaft 3 through the installation of the first bolt 4.

Referring to fig. 3, an annular groove 5 is formed on the surface of the swash plate 1, and a supporting block 18 is slidably connected in the annular groove 5. Through the cooperation of the annular groove 5 and the supporting block 18, the return disc 6 can be supported in an auxiliary manner, and the annular groove 5 and the supporting block 18 can slide relatively.

Referring to fig. 4, the return disk 6 is provided with six circular holes 61, and the six circular holes 61 are arranged on the return disk 6 in an annular array. Each circular hole 61 is internally provided with a sliding shoe 13.

Referring to fig. 3, a second bolt 16 is slidably sleeved in the return plate 6, and the second bolt 16 is in threaded connection with the fixture block 15. The latch 15 can be fixed by the second bolt 16.

Referring to fig. 3, the fastening block 15, the supporting rod 17 and the supporting block 18 are an integrated structure. The integral structure formed by the fixture block 15, the support rod 17 and the support block 18 can assist in supporting the return disc 6, and stress of the return disc 6 is improved.

The utility model discloses the concrete implementation process as follows: when the main shaft 3 rotates, the swash plate 1 can be driven to rotate, the piston shoes 13 on the swash plate 1 are always contacted with the swash plate 1, the plungers 14 are matched with a plunger pump cylinder body under a common condition, so the piston shoes 13 reciprocate left and right under the action of the return plate 6, the pistons 14 are driven to reciprocate left and right, the annular grooves 5 on the swash plate 1 and the supporting blocks 18 slide relatively, the return plate 6 supports the piston shoes 13, so the piston shoes 13 have periodic thrust and tension on the return plate 6, an integral structure supporting piece consisting of the clamping blocks 15, the supporting rods 17 and the supporting blocks 18 is arranged at the edge of the return plate 6, and the supporting blocks 18 are matched with the annular grooves 5 designed on the swash plate 1, so that the return plate 6 can be supported in an auxiliary manner, the stress of the return plate 6 is improved, the service life of the return plate 6 is prolonged, and the return plate 6 is not easy to deform, when the main shaft 3 rotates, the return disc 6 is provided with the bearing 10, so that the resistance borne by the main shaft 3 during rotation is reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a return stroke dish structure for plunger pump, is including installing return stroke dish (6) on sloping cam plate (1) right side, its characterized in that: the center of the return stroke disc (6) is provided with a bearing groove (7), the left end of the return stroke disc (6) is provided with a through hole (8), the edge of the return stroke disc (6) is provided with a clamping groove (9), a clamping block (15) is installed in the clamping groove (9), a bearing (10) is installed in the bearing groove (7), a fixing piece (11) is sleeved in the bearing (10) in a sliding manner, the fixing piece (11) is connected with the swash plate (1) through threads, the right end of the fixing piece (11) is provided with a stop block (12), the fixing piece (11) and the stop block (12) are of an integrated structure, a sliding shoe (13) is sleeved in the return stroke disc (6) in a sliding manner, the sliding shoe (13) is in surface contact with the swash plate (1), a plunger (14) is hinged in the sliding shoe (13), and a supporting rod (17) is, the surface of the supporting rod (17) is fixedly connected with a supporting block (18).

2. The return disc structure for a plunger pump according to claim 1, wherein: the left end fixedly connected with adapter sleeve (2) of sloping cam plate (1), the internally mounted of adapter sleeve (2) has main shaft (3), sliding sleeve has first bolt (4) in adapter sleeve (2), first bolt (4) pass through threaded connection with main shaft (3).

3. The return disc structure for a plunger pump according to claim 1, wherein: the surface of the swash plate (1) is provided with an annular groove (5), and a supporting block (18) is connected in the annular groove (5) in a sliding manner.

4. The return disc structure for a plunger pump according to claim 1, wherein: round holes (61) are formed in the return disc (6), the number of the round holes (61) is six, and the six round holes (61) are arranged on the return disc (6) in an annular array.

5. The return disc structure for a plunger pump according to claim 1, wherein: and a second bolt (16) is sleeved in the return disc (6) in a sliding manner, and the second bolt (16) is in threaded connection with the fixture block (15).

6. The return disc structure for a plunger pump according to claim 1, wherein: the fixture block (15), the support rod (17) and the support block (18) are of an integrated structure.