Driving structure of electric grease machine

Abstract

The utility model belongs to the technical field of grease machines, and particularly relates to a driving structure of an electric grease machine, which comprises a mounting seat and a driving motor, a plurality of plunger holes are arranged on the mounting seat, plunger rods are arranged in the plunger holes in a sliding manner, oil inlet holes are connected onto the plunger holes, and the driving motor can drive the plunger rods to move through a transmission device. The transmission device comprises an eccentric assembly rotationally arranged on the mounting seat, a first driving surface and a second driving surface which are used for driving the plunger rod to move are arranged on the eccentric assembly, and a driving part is arranged on the plunger rod; in the process that the driving motor drives the eccentric assembly to rotate, the first driving face can abut against the driving part and drive the plunger rod to slide towards the interior of the plunger hole, and the second driving face can abut against the driving part and drive the plunger rod to slide towards the exterior of the plunger hole. The driving structure of the electric grease machine is simple in structure and long in service life.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of butter machine, especially relate to a drive structure of electric butter machine. BACKGROUND

[0002] Electric butter machine is a kind of machine that is used to inject butter into lubrication station, and most of them drive plunger rod movement through motor, and then drive butter to output from electric butter machine through plunger rod.

[0003] The electric butter machine on the market now mostly drives plunger rod movement through eccentric structure, and when electric butter machine works, motor drives plunger rod reciprocating movement through eccentric structure, such as the power structure of butter barrel disclosed by Chinese utility model patent application CN202020064285.6, which includes pump assembly, the lower end of pump assembly is provided with disc body, the upper of disc body is provided with motor, busbar and plunger, the disc body is provided with through hole, the middle of busbar is inner cavity, the oil inlet of inner cavity is communicated with the through hole of disc body, the oil outlet of inner cavity is connected with connector and discharges oil body outward, two plungers are arranged in the inner cavity, drive structure is arranged between motor and two plungers, motor drives drive structure movement and makes two plungers staggered movement;The drive structure includes eccentric wheel, high-position eccentric wheel and low-position eccentric wheel are high-low set on the output shaft of motor / output shaft connected with motor, high-position eccentric wheel drives the plunger above in inner cavity, low-position eccentric wheel drives the plunger below in inner cavity, and high-position eccentric wheel and low-position eccentric wheel are staggered, when high-position eccentric wheel drives the plunger above to enter busbar, low-position eccentric wheel drives the plunger below to retreat far from busbar;High-position connecting sheet is arranged between the two plungers above of busbar, high-position connecting sheet wraps high-position eccentric wheel, high-position connecting sheet is provided with slot for motor output shaft transverse movement, high-position eccentric wheel drives high-position connecting sheet to drive the two plungers above movement / high-position eccentric wheel drives the two plunger ends above in high-position connecting sheet to move;Low-position connecting sheet is arranged between the two plungers below of busbar, low-position connecting sheet wraps low-position eccentric wheel, low-position connecting sheet is provided with slot for motor output shaft transverse movement, low-position eccentric wheel drives low-position connecting sheet to drive the two plungers below movement / low-position eccentric wheel drives the two plunger ends below in low-position connecting sheet to move.

[0004] In the above-mentioned structure, eccentric wheel drives plunger movement through connecting sheet, connecting sheet is relatively fixed with plunger, and connecting sheet is easy to drive plunger to swing to both sides in use process, so as to cause plunger damage and affect the service life of butter machine. SUMMARY

[0005] In order to overcome the defects in the prior art, the utility model discloses a drive structure of electric butter machine with simple structure and long service life.

[0006] The utility model discloses a purpose is realized as follows:

[0007] A drive structure of electric butter machine, including mounting seat and drive motor, be provided with a plurality of plunger hole on the mounting seat, the plunger hole is slidably arranged with plunger rod, be connected with the oil inlet hole on the plunger hole, drive motor can drive plunger rod movement through transmission, transmission includes eccentric assembly that rotates and sets up on the mounting seat, be provided with first drive surface and second drive surface for driving plunger rod movement on the eccentric assembly, be provided with drive portion on the plunger rod, drive motor drives the rotation of eccentric assembly, and first drive surface can abut on drive portion and drive plunger rod to slide into plunger hole, and second drive surface can abut on drive portion and drive plunger rod to slide out of plunger hole, drive motor drives the rotation of eccentric assembly, and first drive surface and second drive surface drive plunger rod reciprocating motion in plunger hole.

[0008] The utility model further sets up: eccentric assembly includes eccentric shaft that rotates and sets up on the mounting seat, and first drive block and second drive block are detachably connected on the eccentric shaft, and first drive surface and second drive surface are arranged on first drive block and second drive block respectively.

[0009] The utility model further sets up: detachably set up with adjusting washer between first drive block and second drive block, and adjusting washer can increase the distance between eccentric slot bottom and drive portion.

[0010] The utility model further sets up: the second drive block forms convex edge to first drive block side extension, and second drive surface is arranged on the side of convex edge close to first drive block, drive motor drives the rotation of eccentric assembly, and first drive surface and second drive surface can be moved to drive portion both sides respectively.

[0011] The utility model further sets up: first drive surface and / or second drive surface are circular ring shape, and eccentric shaft is provided with the installation portion for installing first drive block and second drive block, and first drive block and second drive block are provided with first installation hole and second installation hole matched with the installation portion respectively, and first installation hole is coaxially arranged with first drive surface, or, second installation hole is coaxially arranged with second drive surface.

[0012] The utility model further sets up: eccentric assembly is provided with annular eccentric slot, and first drive surface and second drive surface are respectively arranged on the side wall of the inside and outside of eccentric slot, and drive portion is arranged in eccentric slot, drive motor drives the rotation of eccentric assembly, and drive portion moves along eccentric slot relatively, so that plunger rod reciprocating motion in plunger hole is driven.

[0013] The utility model further sets up: at least two plunger holes are arranged on the mounting seat, and the plunger holes are arranged along the circumferential array of the rotation center of the eccentric assembly.

[0014] The utility model further sets up: the mounting seat includes first shell and second shell of detachable connection, is provided with installation cavity on the first shell, and the eccentric assembly is arranged in the installation cavity, the installation cavity bottom is provided with the accommodation groove, and the convex edge is arranged on the eccentric assembly, and the convex edge is inserted between the plunger rod and the bottom of the accommodation groove.

[0015] The utility model further sets up: the second drive surface is inclined to the outer periphery of the eccentric assembly on the side close to the plunger rod.

[0016] The utility model further sets up: the arc end face is arranged on the drive part, and the first drive surface is abutted on the arc end face and drives the plunger rod to slide into the plunger hole.

[0017] The utility model has the advantages compared with prior art:

[0018] 1、 the structure in the utility model drives the plunger rod to reciprocate in the plunger hole through the first drive surface and the second drive surface on the eccentric assembly, and the structure does not need additional components, and the structure is simple, and the production cost is low, and the assembly production of electric grease machine is convenient, and the drive part can slide along the first drive surface or the second drive surface during the rotation of the eccentric assembly, which is favorable for reducing the radial stress of the plunger rod during use, avoiding the damage of the plunger rod during use, and prolonging the service life of the plunger rod and electric grease machine.

[0019] 2、 the eccentric assembly includes eccentric shaft, first drive block and second drive block in the utility model, which is convenient for the assembly production of eccentric assembly, and the producer and user can flexibly assemble eccentric assembly as required, which is favorable for reducing the production cost of electric grease machine drive structure, and when the eccentric shaft, first drive block or second drive block is damaged, it can be disassembled and replaced, which is favorable for reducing the maintenance cost of electric grease machine drive structure, and the setting of adjusting gasket is favorable for adjusting the relative position of first drive block or second drive block and plunger rod, which is convenient for the flexible assembly production of electric grease machine drive structure.

[0020] 3、 The structure of the convex edge is simple, the production and processing of the second driving surface are facilitated, the first driving surface and the second driving surface are respectively in contact with the two sides of the driving part, the circular annular first driving surface and / or the second driving surface facilitate limiting the movement range of the driving part, the influence of the excessive movement range of the driving part on the driving of the driving part by the first driving surface and the second driving surface is avoided, the use of the electric butter machine driving structure is facilitated, and since the first mounting hole is coaxially arranged with the first driving surface or the second mounting hole is coaxially arranged with the second driving surface, the relative rotation of the first driving block and the second driving block in the installation process does not affect the normal use of the eccentric assembly, and the eccentric assembly is facilitated to be quickly assembled.

[0021] 4、 The setting of the annular eccentric stirring groove facilitates the stable connection of the eccentric assembly and the driving part, the influence of the excessive movement range of the driving part on the driving of the driving part by the first driving surface and the second driving surface is avoided, the use of the electric butter machine driving structure is facilitated, the two plunger holes arranged along the circumferential array of the eccentric assembly enable the movement of each plunger rod to be the same in the use process, and each plunger hole is facilitated to uniformly output butter.

[0022] 5、 The setting of the mounting cavity facilitates the influence of other sundries on the driving of the plunger rod by the eccentric assembly, facilitates the use of a user, and since the convex edge penetrates between the plunger rod and the bottom of the storage groove, the inclination and shaking of the eccentric assembly in the use process are avoided, and the stable movement of the eccentric assembly is facilitated; since the second driving surface is inclined to the outer periphery of the eccentric assembly on the side close to the plunger rod, the driving part is facilitated to be installed to one side of the second driving surface, and the electric butter machine driving structure is assembled; the setting of the arc-shaped end face facilitates reducing the friction between the driving part and the first driving surface in the use process, and the service life of the eccentric assembly and the plunger rod is facilitated to be prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic view of the utility model;

[0024] Figure 2 It is a sectional view of the utility model;

[0025] Figure 3 It is an explosion schematic view of the utility model;

[0026] Figure 4 It is a structural schematic view of the first shell in the utility model;

[0027] Figure 5 It is a sectional view of the eccentric assembly in the utility model;

[0028] Figure 6 It is a structural schematic view of the eccentric assembly in the utility model;

[0029] Figure 7 It is a structural schematic view of the second driving block in the utility model;

[0030] Figure 8 Is the structure diagram of the plunger rod in the utility model, and the plunger rod is provided with a driving part 61, a arc-shaped end face 62 and a abutting face 63.

[0031] Figure 9 Is the sectional view of the plunger rod in the utility model.

[0032] Figure label meaning: 1 - mounting seat; 11 - first shell; 12 - second shell; 13 - first connecting piece; 14 - second connecting piece; 15 - installation cavity; 16 - storage groove; 17 - plunger hole; 18 - oil inlet hole; 19 - perforation; 121 - rotating cavity; 2 - drive motor; 3 - eccentric shaft; 31 - mounting part; 32 - step part; 33 - bearing; 41 - first drive block; 42 - adjusting gasket; 43 - second drive block; 44 - first drive face; 45 - second drive face; 46 - eccentric slot; 47 - convex edge; 411 - first mounting hole; 431 - second mounting hole; 5 - fastener; 6 - plunger rod; 61 - driving part; 62 - arc-shaped end face; 63 - abutting face.

[0033] Specific embodiments

[0034] The utility model will be further described in connection with the drawings and specific embodiments:

[0035] Referring to Figures 1 to 9 The driving structure of the electric grease machine, including mounting seat 1 and drive motor 2, mounting seat 1 is provided with a plurality of plunger holes 17, the plunger hole 17 is slidably provided with plunger rod 6, the plunger hole 17 is connected with oil inlet hole 18, drive motor 2 can drive plunger rod 6 movement through transmission device, the transmission device includes eccentric assembly that is rotatably arranged on mounting seat 1, the eccentric assembly is provided with first drive face 44 and second drive face 45 for driving plunger rod 6 movement, plunger rod 6 is provided with driving part 61;Drive motor 2 drives the eccentric assembly to rotate, first drive face 44 can abut on driving part 61 and drive plunger rod 6 to slide into plunger hole 17, second drive face 45 can abut on driving part 61 and drive plunger rod 6 to slide out of plunger hole 17;Drive motor 2 drives the eccentric assembly to rotate, first drive face 44 and second drive face 45 drive plunger rod 6 reciprocating motion in plunger hole 17, the structure drives plunger rod 6 reciprocating motion in plunger hole 17 through first drive face 44 and second drive face 45 on eccentric assembly, the structure does not need additional components, simple structure, low in production cost, it is convenient to assemble production of electric grease machine, driving part 61 can slide along first drive face 44 or second drive face 45 during the eccentric assembly rotation process, which is conducive to reducing the radial stress of plunger rod 6 during use, avoiding plunger rod 6 damage during use, which is conducive to prolonging the service life of plunger rod 6 and electric grease machine. ​

[0036] The first driving surface 44 and the second driving surface 45 can be arc surfaces, and preferably, the first driving surface 44 and the second driving surface 45 are arranged on the two sides of the eccentric assembly respectively.

[0037] The eccentric assembly comprises an eccentric shaft 3 rotatably arranged on the mounting base 1, and the first driving block 41 and the second driving block 43 are detachably connected to the eccentric shaft 3, and the first driving surface 44 and the second driving surface 45 are arranged on the first driving block 41 and the second driving block 43 respectively.

[0038] The adjusting gasket 42 is arranged between the first driving block 41 and the second driving block 43, and the adjusting gasket 42 can increase the distance between the bottom of the eccentric slot 46 and the driving part 61.

[0039] The second driving block 43 extends to the side of the first driving block 41 to form a protruding edge 47, and the second driving surface 45 is arranged on the side of the protruding edge 47 close to the first driving block 41.

[0040] Preferably, the side of the second driving surface 45 close to the plunger rod 6 is inclined to the outer periphery of the eccentric assembly.

[0041] The first driving surface 44 and / or the second driving surface 45 are annular, the eccentric shaft 3 is provided with a mounting portion 31 for mounting the first driving block 41 and the second driving block 43, the first driving block 41 and the second driving block 43 are respectively provided with a first mounting hole 411 and a second mounting hole 431 matched with the mounting portion 31, the first mounting hole 411 is coaxially arranged with the first driving surface 44, or the second mounting hole 431 is coaxially arranged with the second driving surface 45, the annular first driving surface 44 and / or the second driving surface 45 facilitate limiting the movement range of the driving part 61, avoid that the movement range of the driving part 61 is too large caused by accident to affect the driving of the driving part 61 by the first driving surface 44 and the second driving surface 45, facilitate the use of the electric butter machine driving structure, and since the first mounting hole 411 is coaxially arranged with the first driving surface 44, or the second mounting hole 431 is coaxially arranged with the second driving surface 45, the relative rotation of the first driving block 41 and the second driving block 43 in the mounting process does not affect the normal use of the eccentric assembly, and the eccentric assembly is quickly assembled.

[0042] The adjusting gasket 42, the first driving block 41 and the second driving block 43 are all sleeved on the mounting portion 31, and the mounting portion 31 is provided with a fastener 5 connected with the mounting portion 31 and fixing the adjusting gasket 42, the first driving block 41 and the second driving block 43 on the mounting portion 31.

[0043] Preferably, the eccentric assembly is provided with an annular eccentric slot 46, the first driving surface 44 and the second driving surface 45 are side walls respectively arranged on the inner and outer sides of the eccentric slot 46, and the driving part 61 is arranged in the eccentric slot 46; during the rotation of the eccentric assembly driven by the driving motor 2, the driving part 61 moves relatively along the eccentric slot 46, so that the plunger rod 6 reciprocates in the plunger hole 17, and the annular eccentric slot 46 facilitates the stable connection of the eccentric assembly and the driving part 61, avoids that the movement range of the driving part 61 is too large caused by accident to affect the driving of the driving part 61 by the first driving surface 44 and the second driving surface 45, and facilitates the use of the electric butter machine driving structure.

[0044] In the embodiment, the first driving block 41 is cylindrical, the first driving surface 44 is a cylindrical surface of the outer periphery of the first driving block 41, the second driving block 43 is provided with an annular convex edge 47 extending therefrom, the second driving surface 45 is arranged on the inner side of the convex edge 47, and the second driving surface 45 is a conical surface, and the first driving block 41 is coaxially arranged with the second driving surface 45.

[0045] The mounting base 1 is provided with at least two plunger holes 17 arranged along the circumferential array of the rotation center of the eccentric assembly, and the two plunger holes 17 arranged along the circumferential array of the rotation center of the eccentric assembly make each plunger rod 6 move the same in use, facilitating uniform output of the grease by each plunger hole 17.

[0046] The mounting base 1 in the utility model comprises a first shell 11 and a second shell 12 which are detachably connected, the first shell 11 is provided with a mounting cavity 15, the eccentric assembly is arranged in the mounting cavity 15, the mounting cavity 15 is provided with a receiving groove 16 at the bottom, the eccentric assembly is provided with a convex edge 47, the convex edge 47 penetrates between the plunger rod 6 and the bottom of the receiving groove 16, the mounting cavity 15 is convenient for other sundries to affect the driving of the eccentric assembly on the plunger rod 6, facilitates the use of the user, and since the convex edge 47 penetrates between the plunger rod 6 and the bottom of the receiving groove 16, the inclination and shaking of the eccentric assembly in use are avoided, which is beneficial to the stable movement of the eccentric assembly, and the bottom of the receiving groove 16 in the embodiment is provided with a perforation 19, the mounting portion 31 can penetrate out of the perforation 14, and in use, the scraper can be mounted on the mounting portion 31, and the grease can be driven into the oil inlet hole 18 through the scraper.

[0047] The second shell 12 comprises a first connecting piece 13 and a second connecting piece 14 which are detachably connected, and a rotating cavity 121 is formed between the first connecting piece 13 and the second connecting piece 14, at least two step portions 32 are arranged on the eccentric shaft 3, bearings 33 are arranged on the step portions 32, and the step portions 32 are rotatably arranged in the rotating cavity 121 through the bearings 33.

[0048] Preferably, the driving portion 61 is provided with an arc-shaped end face 62, the first driving face 44 abuts against the arc-shaped end face 62 and drives the plunger rod 6 to slide into the plunger hole 17, the arc-shaped end face 62 is arranged to facilitate reduction of friction between the driving portion 61 and the first driving face 44 in use, and is beneficial to prolonging the service life of the eccentric assembly and the plunger rod 6.

[0049] The driving portion 61 is further provided with a tapered abutting face 63 in the embodiment, and the second driving face 45 can abut against the tapered abutting face 63 and drive the plunger rod 6 to move.

[0050] The above embodiment is only a preferred embodiment of the utility model, and does not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A drive structure for an electric grease press, comprising a mounting base (1) and a drive motor (2), wherein the mounting base (1) is provided with a plurality of plunger holes (17), a plunger rod (6) is slidably disposed in the plunger holes (17), and an oil inlet hole (18) is connected to the plunger holes (17), and the drive motor (2) can drive the plunger rod (6) to move through a transmission device, characterized in that: The transmission device includes an eccentric assembly rotatably mounted on the mounting base (1). The eccentric assembly is provided with a first driving surface (44) and a second driving surface (45) for driving the piston rod (6) to move. The piston rod (6) is provided with a driving part (61). The first driving surface (44) can abut against the driving part (61) and drive the piston rod (6) to slide into the piston hole (17). The second driving surface (45) can abut against the driving part (61) and drive the piston rod (6) to slide out of the piston hole (17). During the rotation of the eccentric assembly driven by the drive motor (2), the first driving surface (44) and the second driving surface (45) drive the piston rod (6) to reciprocate in the piston hole (17).

2. The drive structure of an electric grease machine according to claim 1, characterized in that: The eccentric assembly includes an eccentric shaft (3) rotatably mounted on a mounting base (1), and a first drive block (41) and a second drive block (43) are detachably connected to the eccentric shaft (3). A first drive surface (44) and a second drive surface (45) are respectively disposed on the first drive block (41) and the second drive block (43).

3. The drive structure of an electric grease machine according to claim 2, characterized in that: An adjusting shim (42) is detachably provided between the first driving block (41) and the second driving block (43). The adjusting shim (42) can increase the distance between the bottom of the eccentric groove (46) and the driving part (61).

4. The drive structure of an electric grease machine according to claim 2, characterized in that: The second driving block (43) extends to the side of the first driving block (41) to form a protruding edge (47), and the second driving surface (45) is disposed on the side of the protruding edge (47) close to the first driving block (41); during the process of the driving motor (2) driving the eccentric assembly to rotate, the first driving surface (44) and the second driving surface (45) can move to both sides of the driving part (61) respectively.

5. The drive structure of an electric grease press according to claim 2, 3, or 4, characterized in that: The first driving surface (44) and / or the second driving surface (45) are annular. The eccentric shaft (3) is provided with a mounting part (31) for mounting the first driving block (41) and the second driving block (43). The first driving block (41) and the second driving block (43) are respectively provided with a first mounting hole (411) and a second mounting hole (431) that cooperate with the mounting part (31). The first mounting hole (411) is coaxial with the first driving surface (44), or the second mounting hole (431) is coaxial with the second driving surface (45).

6. The drive structure of an electric grease machine according to claim 1, 2, 3, or 4, characterized in that: The eccentric assembly is provided with an annular eccentric groove (46). The first driving surface (44) and the second driving surface (45) are the side walls respectively provided on the inner and outer sides of the eccentric groove (46). The driving part (61) passes through the eccentric groove (46). During the rotation of the eccentric assembly driven by the drive motor (2), the driving part (61) moves relative to the eccentric groove (46), thereby driving the plunger rod (6) to reciprocate in the plunger hole (17).

7. The drive structure of an electric grease machine according to claim 1, characterized in that: The mounting base (1) is provided with at least two plunger holes (17), which are arranged in a circumferential array along the rotation center of the eccentric assembly.

8. The drive structure of an electric grease machine according to claim 1, characterized in that: The mounting base (1) includes a first housing (11) and a second housing (12) that are detachably connected. The first housing (11) is provided with a mounting cavity (15). An eccentric component is provided in the mounting cavity (15). A storage groove (16) is provided at the bottom of the mounting cavity (15). A protruding edge (47) is provided on the eccentric component. The protruding edge (47) passes between the plunger rod (6) and the bottom of the storage groove (16).

9. The drive structure of an electric grease machine according to claim 1, characterized in that: The second drive surface (45) is inclined toward the outer periphery of the eccentric assembly on the side near the plunger rod (6).

10. The drive structure of an electric grease machine according to claim 1, characterized in that: The drive unit (61) is provided with an arc-shaped end face (62), and the first drive surface (44) abuts against the arc-shaped end face (62) and drives the plunger rod (6) to slide into the plunger hole (17).

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