Guide mechanism for solid pump

Abstract

The utility model discloses a guide mechanism for a solid pump. The guide mechanism comprises a guide sleeve; the plunger penetrates through an inner ring of the guide sleeve in a sliding manner and is connected with a piston rod of the hydraulic cylinder; a guide member and a guide rail; the guide piece is matched with the guide rail, and the guide piece is connected with the plunger; the plunger drives the guide part to move in the extending direction of the guide rail, and the extending direction of the guide rail is consistent with the moving direction of the piston rod. According to the technical scheme, through matched arrangement of the plunger, the guide piece and the guide rail, the piston rod drives the plunger to move linearly, the plunger drives the guide piece to move linearly along the guide rail in the moving process, the plunger is limited to only move linearly while the guide piece moves linearly, horizontal movement guiding of the plunger is achieved, and shaking and deformation of the plunger are effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, and in particular to a guiding mechanism for a solid pump. Background Technology

[0002] Solids pumps are used to transport materials that are "difficult to transport" due to their high solids content and the presence of foreign matter (such as broken strips from barrels, wood, etc.). The working principle of a solids pump involves a plunger that propels the material through the pump casing; the plunger is driven by a long-stroke hydraulic cylinder.

[0003] Traditional solid pumps, due to the long stroke of the hydraulic cylinder, are prone to piston rotation or bending deformation during operation, which accelerates the wear of the seals and cylinder barrel. During the use of solid pumps, the piston is in direct contact with the solid waste; due to material impact, the piston is prone to wobble, leading to unilateral leakage of the seals. Simultaneously, uneven friction during the reciprocating motion of the piston can cause a "creeping" phenomenon, affecting flow stability.

[0004] Therefore, how to design a guiding mechanism for solid pumps that can avoid deviation caused by abnormal rotation and uneven force between the plunger and the plunger cylinder is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a guide mechanism for a solid pump to avoid deviation caused by abnormal rotation and uneven force between the plunger and the plunger cylinder.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A guide mechanism for a solid pump, comprising:

[0008] Guide sleeve; the inner ring of the guide sleeve is through which the plunger slides, and the plunger is connected to the piston rod of the hydraulic cylinder;

[0009] Guide member and guide rail; the guide member is configured to cooperate with the guide rail, and the guide member is connected to the plunger;

[0010] The plunger drives the guide to move along the extension direction of the guide rail, and the extension direction of the guide rail is consistent with the movement direction of the piston rod.

[0011] Preferably, the guide member is connected to the plunger via a guide ring;

[0012] The guide rails are two symmetrically arranged rails;

[0013] The inner wall of the guide ring is used to fit the outer wall of the plunger. The outer ring edge of the guide ring is connected to two guide members, and the two guide members are located on the same radial straight line passing through the center of the guide ring.

[0014] One of the guide members moves along the extension direction of the corresponding guide rail, and the other guide member also moves along the extension direction of the corresponding guide rail.

[0015] Preferably, the guide component is a guide wheel.

[0016] Preferably, it further includes: a connector;

[0017] The guide wheel is an eccentric wheel, which has an inner ring and an outer ring. The outer ring can be adjusted in position relative to the inner ring, and the eccentric shaft hole of the eccentric wheel is located in the inner ring.

[0018] The connector passes through the eccentric shaft hole to connect the eccentric wheel and the guide ring.

[0019] Preferably, the inner ring is positioned relative to the outer ring so that the axial height of the eccentric shaft hole can be adjusted.

[0020] Preferably, it further includes: a guide frame;

[0021] The guide frame includes: two side plates arranged opposite to each other and a first end plate and a second end plate arranged opposite to each other;

[0022] One side plate, the first end plate, the other side plate, and the second end plate are sequentially connected to form the internal space of the guide frame;

[0023] The piston rod slides through the first end plate and connects with the plunger located in the internal space. The guide sleeve is disposed on the second end plate, and the second end plate has an opening. The opening communicates with the inner ring of the guide sleeve, so that the plunger slides through the inner ring and the opening in sequence.

[0024] Each of the aforementioned side panels is provided with an upper panel and a lower panel;

[0025] The guide rail is fixed to the surface of the lower plate and is arranged along the length direction of the lower plate. A first guide channel for the guide wheel to move is formed between the guide rail and the upper plate. The length direction of the lower plate is consistent with the movement direction of the piston rod.

[0026] Preferably, the guide rail is fixed to the surface of the lower plate by fasteners.

[0027] Preferably, it further includes: a guide frame;

[0028] The guide component is a composite roller bearing;

[0029] The guide frame includes: two side plates arranged opposite to each other and a first end plate and a second end plate arranged opposite to each other;

[0030] One side plate, the first end plate, the other side plate, and the second end plate are sequentially connected to form the internal space of the guide frame;

[0031] The piston rod slides through the first end plate and connects with the plunger located in the internal space. The guide sleeve is disposed on the second end plate, and the second end plate has an opening. The opening communicates with the inner ring of the guide sleeve, so that the plunger slides through the inner ring and the opening in sequence.

[0032] Each of the aforementioned side panels is provided with an upper panel and a lower panel;

[0033] The guide rail is fixed to the upper plate and the lower plate on both sides, so that the three together form a second guide channel for the movement of the composite roller bearing; and the length direction of the lower plate is consistent with the movement direction of the piston rod.

[0034] The main roller of the composite roller bearing is located between the upper plate and the lower plate, and the side rollers of the composite roller bearing are used to roll along the length direction of the guide rail.

[0035] Preferably, the two sides of the guide rail are fixed to the upper plate and the lower plate respectively by fixing plates.

[0036] Preferably, the guide ring is a guide flange.

[0037] As can be seen from the above technical solution, the guide mechanism for solid pumps provided by this utility model, through the cooperation of a plunger, a guide member and a guide rail, drives the plunger to move in a straight line. During the movement of the plunger, the guide member drives the guide member to move in a straight line along the guide rail. While the guide member is moving in a straight line, it restricts the plunger to only move in a straight line, avoiding abnormal rotation and uneven force between the plunger and the cylinder, thus achieving horizontal movement guidance of the plunger and effectively preventing plunger vibration and deformation. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1This is a schematic diagram of one embodiment of the guiding mechanism and its cooperating parts;

[0040] Figure 2 This is a schematic diagram of an embodiment of the guide ring and other mating parts of the guide mechanism;

[0041] Figure 3 This is a side view of the eccentric wheel of the guiding mechanism.

[0042] Figure 4 This is a cross-sectional view of the eccentric wheel of this guiding mechanism;

[0043] Figure 5a This is a schematic diagram of the structure of an embodiment of the eccentric wheel of this guiding mechanism;

[0044] Figure 5b This is a schematic diagram of another embodiment of the eccentric wheel of the guiding mechanism;

[0045] Figure 5c This is a schematic diagram of another embodiment of the eccentric wheel of this guiding mechanism;

[0046] Figure 6 This is a schematic diagram of another embodiment of the guiding mechanism and its cooperating parts;

[0047] Figure 7 This is a cross-sectional view of the guiding mechanism and other mating parts.

[0048] The meanings of the various reference numerals in the figure are as follows:

[0049] 1 is a plunger; 2 is a guide ring; 4 is a hydraulic cylinder; 41 is a piston rod; 5 is an eccentric wheel; 51 is an inner ring; 52 is an outer ring; 53 is an eccentric shaft hole; 6 is a guide frame; 61 is a side plate; 611 is an upper plate; 612 is a lower plate; 62 is a first end plate; 63 is a second end plate; 7 is a guide rail; 8 is a guide sleeve; 9 is a connecting piece; 10 is a fastener; 11 is a fixing plate; 12 is a composite roller bearing;

[0050] e represents the eccentricity of the axis of the eccentric shaft hole. Detailed Implementation

[0051] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0052] The guide mechanism for a solid pump provided in this embodiment of the utility model includes:

[0053] like Figure 1 As shown, guide sleeve 8; the inner ring of guide sleeve 8 is for plunger 1 to slide through, and plunger 1 is connected to piston rod 41 of hydraulic cylinder 4;

[0054] Guide component and guide rail 7; the guide component is configured to cooperate with the guide rail 7, and the guide component is connected to the plunger 1;

[0055] The plunger 1 drives the guide to move along the extension direction of the guide rail 7, and the extension direction of the guide rail 7 is consistent with the movement direction of the piston rod 41; the guide rail 7 is used to limit the movement path of the guide component.

[0056] The basic principle of the above scheme is as follows: when the hydraulic cylinder 4 is started, the piston rod 41 drives the plunger 1 to move in a straight line. During the movement of the plunger 1, the guide component moves. Since the extension direction of the guide rail 7 is consistent with the movement direction of the piston rod 41, the guide component can only move in a straight line. While the guide component moves in a straight line, it restricts the plunger 1 to move in a straight line, avoiding abnormal rotation and uneven force between the plunger 1 and the cylinder, thus achieving horizontal movement guidance of the plunger and effectively preventing plunger vibration and deformation.

[0057] In an alternative embodiment, such as Figure 1 As shown, the guide member is connected to the plunger 1 via the guide ring 2;

[0058] The guide rails 7 are arranged in two symmetrical positions;

[0059] The inner wall of the guide ring 2 is used to fit the outer wall of the plunger 1. The outer ring edge of the guide ring 2 is connected to two guide members, and the two guide members are located on the same radial straight line passing through the center of the guide ring 2.

[0060] One guide member moves along the extension direction of the corresponding guide rail 7, and the other guide member also moves along the extension direction of the corresponding guide rail 7.

[0061] In the above technical solution, the guide ring 2 can be quickly connected to the plunger 1. Specifically, the inner wall of the guide ring 2 is fixed to the outer wall of the plunger 1 by welding or snap-fitting. In addition, the guide ring 2 is a guide flange. By using the combination of two guide rails 7 and two guide components, the force points on both sides of the guide ring 2 are evenly distributed, making the guide ring 2 more stable during movement, and restricting both sides of the plunger 1, further preventing abnormal rotation of the plunger 1.

[0062] To optimize the above technical solution and reduce costs, the guide component is a guide wheel, which includes, but is not limited to, concentric wheels and eccentric wheels.

[0063] Further optimization of the above technical solution also includes: connector 9, such as Figure 2 As shown;

[0064] The guide wheel is an eccentric wheel 5, such as Figure 3 and Figure 4 As shown, the eccentric wheel 5 has an inner ring 51 and an outer ring 52. The outer ring 52 can be adjusted in position relative to the inner ring 51. The eccentric shaft hole 53 of the eccentric wheel 5 is located in the inner ring 51, as shown. Figures 5a-5c ;

[0065] The connector 9 passes through the eccentric shaft hole 53 to connect the eccentric wheel 5 and the guide ring. In one embodiment, the connector 9 is a fastener to fix the eccentric wheel 5 and the guide ring. In another embodiment, the connector is a rotating shaft that passes through the eccentric shaft hole 53 to connect the eccentric wheel 5 and the guide ring, so that the eccentric wheel 5 can roll along the side guide rail, effectively limiting the rotation and bending of the plunger 1. This can reduce the manufacturing cost of the guide mechanism and improve the adaptability of the plunger 1 while increasing its working reliability. In addition, the connector 9 is a screw or bolt.

[0066] In the above technical solution, the eccentric wheel 5 and the guide ring 2 are fixedly connected by the connector 9. Specifically, the outer ring edge of the guide ring 2 is provided with a radial hole, and the connector 9 passes through the eccentric shaft hole 53 and the radial hole in sequence to fix the eccentric wheel 5 and the guide ring 2. In actual use, since the outer ring 52 can be adjusted in position relative to the inner ring 51, the relative height of the axis of the eccentric shaft hole 53 can be adjusted. This avoids the guide rail surface being rubbed during use, which would reduce the relative height of the guide rail surface and cause the movement path of the eccentric wheel 5 to decrease accordingly. The height of the inner ring 51 can be adjusted to compensate for the reduced height of the guide rail surface. It should be noted that there is a certain matching relationship between the inner ring 51 and the outer ring 52. For example, through sliding, rotation, or other movable connection methods, the inner ring 51 can be adjusted in position relative to the outer ring 52.

[0067] In a further optimized version of the above scheme, the inner ring 51 is positioned relative to the outer ring 52 to allow for adjustment of the axial height of the eccentric shaft hole 53. In use, when the eccentric shaft hole 53 needs to be at a higher position, the position of the inner ring 51 is adjusted as follows: Figure 5a As shown; when the required axial height of the eccentric shaft hole 53 is in the middle position, adjust the position of the inner ring 51 as follows. Figure 5b As shown; when the required axial height of the eccentric shaft hole 53 is at a low position, adjust the position of the inner ring 51 as follows. Figure 5c As shown.

[0068] In one alternative technical solution, it also includes: guide frame 6, such as Figure 1 As shown;

[0069] The guide frame 6 includes: two side plates 61 arranged opposite to each other and a first end plate 62 and a second end plate 63 arranged opposite to each other;

[0070] One side plate 61, the first end plate 62, the other side plate 61, and the second end plate 63 are connected in sequence to form the internal space of the guide frame 6;

[0071] The piston rod 41 slides through the first end plate 62 and connects with the plunger 1 located in the internal space. The guide sleeve 8 is disposed on the second end plate 63, and the second end plate 63 has an opening that communicates with the inner ring of the guide sleeve 8, so that the plunger 1 slides through the inner ring and the opening in sequence.

[0072] Each side plate 61 is provided with an upper plate 611 and a lower plate 612;

[0073] The guide rail 7 is fixed to the surface of the lower plate 612 and is arranged along the length of the lower plate 612. A first guide channel for the guide wheel to move is formed between the guide rail 7 and the upper plate 611. The length of the lower plate 612 is consistent with the movement direction of the piston rod 41.

[0074] In an optimized version of the above technical solution, the guide rail 7 is mounted on the surface of the lower plate 612 using fasteners 10, as shown below. Figure 2 As shown, preferably, the fastener 10 is a screw or bolt.

[0075] In the above technical solutions, such as Figure 6 As shown, a guide channel is formed between the guide rail 7 and the upper plate 611 to allow the guide wheel to move, which restricts the guide wheel and makes the guide wheel move more smoothly.

[0076] In an optional embodiment, it further includes: a guide frame 6;

[0077] The guide component is a composite roller bearing 12. The specific structure of the composite roller bearing 12 is conventional technology, so it is not added separately in the attached drawings.

[0078] like Figure 6 and Figure 7 As shown, the guide frame 6 includes: two side plates 61 arranged opposite to each other and a first end plate 62 and a second end plate 63 arranged opposite to each other;

[0079] One side plate 61, the first end plate 62, the other side plate 61, and the second end plate 63 are connected in sequence to form the internal space of the guide frame 6;

[0080] The piston rod 41 slides through the first end plate 62 and connects with the plunger 1 located in the internal space. The guide sleeve 8 is disposed on the second end plate 63, and the second end plate 63 has an opening that communicates with the inner ring of the guide sleeve 8, so that the plunger 1 slides through the inner ring and the opening in sequence.

[0081] Each side plate 61 is provided with an upper plate 611 and a lower plate 612;

[0082] The two sides of the guide rail 7 are fixed to the upper plate 611 and the lower plate 612 respectively, so that the three form a second guide channel for the composite roller bearing 12 to move; and the length direction of the lower plate 612 is consistent with the movement direction of the piston rod 41.

[0083] The main roller of the composite roller bearing 12 is located between the upper plate 611 and the lower plate 612, and the side rollers of the composite roller bearing 12 are used to roll along the length of the guide rail 7.

[0084] In the above technical solution, the guide rail surface of the guide rail 7 is vertically arranged, and the side roller of the composite roller bearing 12 is in close contact with the guide rail surface of the guide rail 7 during the movement, so as to realize the movement of the composite roller bearing 12 along the length direction of the lower plate 612.

[0085] To optimize the above technical solution, the two sides of the guide rail 7 are fixed to the upper plate 611 and the lower plate 612 respectively by fixing plates 11. The fixing plates make the structure of this guide mechanism more robust. Preferably, screws or bolts pass through the fixing plates 11 and the guide rail 7 in sequence and are fixed to the upper plate 611 and the lower plate 612 respectively.

[0086] In an alternative embodiment, to reduce costs, the guide ring 2 is a guide flange.

[0087] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features.

[0088] The following is a further description of this solution with reference to specific embodiments:

[0089] In one specific embodiment, to guide the plunger 1 horizontally and prevent the hydraulic cylinder 4 and plunger 1 from rotating, a guide flange is added to the end of the piston rod 41. Two eccentric guide wheels 5 are fixed to both ends of the guide flange with screws. The lower ends of the two eccentric guide wheels 5 are supported by detachable guide rails 7, and the eccentric guide wheels 5 are guided by the guide rails 7. Figures 5a-5cAs shown, the height of the eccentric wheel can be adjusted within a certain range. This ensures smooth forward and backward movement of the plunger 1 and prevents the plunger 1 from rotating the piston rod 41. It should be noted that the plunger 1 is first inserted into the guide sleeve 8, with the end of the plunger connected to the piston rod 41. The hydraulic cylinder 4 then pushes the plunger 1 forward and backward. A guide flange is located between the plunger 1 and the piston rod 41, with two eccentric guide wheels 5 connected to both ends of the guide flange by screws. The guide rail 7 is fixed to the guide wheel frame 6 with multiple screws, so the eccentric guide wheels 5 are completely supported by the guide rail 7, and their final position is at the center horizontal position of the plunger 1. The eccentric guide wheels 5 run along the length of the guide rail 7, keeping the plunger 1 horizontal at all times. Simultaneously, because the eccentric guide wheels 5 are clamped in the middle of the guide wheel frame 6, rotation of the plunger 1 and piston rod 41 is effectively prevented.

[0090] Key points and protection points of the above scheme:

[0091] First, the eccentric guide wheel's support can significantly compensate for the inherent defects of long-stroke hydraulic cylinders, achieving a balance between rigidity, lifespan, and precision. The eccentric guide wheel, guide wheel frame, and guide rail work together to guide the horizontal movement of the plunger, effectively preventing plunger vibration and deformation.

[0092] Second, the parallel arrangement of eccentric guide wheels can also prevent the plunger from rotating, thus ensuring stable plunger operation.

[0093] 3. The eccentric guide wheel bracket secures the eccentric guide wheel, making it easy to assemble and disassemble. The guide rail uses detachable rail strips, facilitating maintenance and replacement. The guide rail is made of stainless steel, increasing durability in corrosive environments.

[0094] The advantages of the above scheme are:

[0095] 1. Resistance to bending and torsion: The eccentric guide wheel and guide rail support reduce the irregular rotation of the plunger and piston rod, and prevent the seals in related parts from wearing out prematurely due to frequent friction.

[0096] Second, reduce friction: The eccentric guide wheel uses rolling friction, which reduces friction by 60-80% compared to traditional sliding friction, thus reducing the "creeping" phenomenon.

[0097] Third, high precision: The height of the guide support can be adjusted within a certain range, which makes it more adaptable and the height of the plunger more precise.

[0098] IV. Modular maintenance: The eccentric guide wheel can be replaced separately after wear without disassembling the hydraulic cylinder body.

[0099] In another specific embodiment, to guide the plunger 1 horizontally and prevent the hydraulic cylinder 4 and plunger 1 from rotating, a guide flange is added to the end of the piston rod 41, and two composite roller bearings 12 are fixed on the guide flange. The composite roller bearing 12 consists of a main roller and side rollers. The main roller bears the vertical (radial) load and contacts the guide rail to guide the plunger 1's forward and backward movement. Its full complement cylindrical roller design can withstand high impact loads and reduces resistance through rolling friction. The side rollers bear the horizontal (axial) load and are fixed inside the shaft head by a spindle. They contact the side of the guide rail 7 to limit and guide the plunger 1 left and right. The side rollers typically use a full complement needle roller design without an inner ring to enhance resistance to lateral impacts. The composite roller bearing is used in conjunction with a specific roller guide rail. The outer ring of the bearing contacts the guide rail, and the load is transmitted through rolling elements (needle rollers or cylindrical rollers), ensuring a stable trajectory for the bearing when it moves linearly along the guide rail and preventing deviation. It should also be noted that the guide rail 7 is fixed to the guide frame 6 by the fixing plate 11, and the composite roller bearing runs along the guide rail 7 to prevent the plunger 1 from rotating while keeping the plunger 1 running horizontally.

[0100] Key points and protection points of the above scheme:

[0101] 1. The guide uses a composite roller bearing. The main roller and roller guide of the composite roller bearing can guide the horizontal movement of the plunger and effectively prevent the plunger from bending and deforming.

[0102] Second, the side rollers of the composite roller bearing can also prevent the plunger from shifting to the left or right, thus ensuring stable operation of the plunger.

[0103] 3. The roller guide rails are specially manufactured for easy maintenance and replacement. The rails are made of stainless steel, increasing durability in corrosive environments.

[0104] The advantages of the above scheme are:

[0105] The composite roller bearing is a standard design, making it easy to disassemble and assemble. The roller guide rails are easy to maintain and replace, and the guide rails are made of stainless steel, making them more suitable for waste treatment projects in corrosive environments. Compared to mechanisms with two sets of roller guides, this type is simpler, enhances equipment safety, and makes the plunger's operation more stable and reliable.

[0106] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0107] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A guide mechanism for a solid pump, characterized in that, include: Guide sleeve (8); the inner ring of the guide sleeve (8) is slidably inserted through the plunger (1), and the plunger (1) is connected to the piston rod (41) of the hydraulic cylinder (4); Guide and guide rail (7); the guide is configured to cooperate with the guide rail (7), and the guide is connected to the plunger (1); The plunger (1) drives the guide to move along the extension direction of the guide rail (7), and the extension direction of the guide rail (7) is consistent with the movement direction of the piston rod (41).

2. The guide mechanism for a solid pump according to claim 1, characterized in that, The guide member is connected to the plunger (1) via a guide ring (2); The guide rails (7) are arranged in two symmetrical positions; The inner wall of the guide ring (2) is used to fit the outer wall of the plunger (1). The outer ring edge of the guide ring (2) is connected to two guide members. The two guide members are located on the same radial straight line passing through the center of the guide ring (2). One of the guide members moves along the extension direction of the corresponding guide rail (7), and the other guide member also moves along the extension direction of the corresponding guide rail (7).

3. The guide mechanism for a solid pump according to claim 2, characterized in that, The guide component is a guide wheel.

4. The guide mechanism for a solid pump according to claim 3, characterized in that, Also includes: Connector (9); The guide wheel is an eccentric wheel (5), which has an inner ring (51) and an outer ring (52). The outer ring (52) can be adjusted relative to the inner ring (51). The eccentric shaft hole (53) of the eccentric wheel (5) is located in the inner ring (51). The connector (9) passes through the eccentric shaft hole (53) to connect the eccentric wheel (5) and the guide ring (2).

5. The guide mechanism for a solid pump according to claim 4, characterized in that, The inner ring (51) is positioned relative to the outer ring (52) so that the axial height of the eccentric shaft hole (53) can be adjusted.

6. The guide mechanism for a solid pump according to any one of claims 3-5, characterized in that, Also includes: Guide frame (6); The guide frame (6) includes: two side plates (61) arranged opposite to each other and a first end plate (62) and a second end plate (63) arranged opposite to each other. One side plate (61), the first end plate (62), the other side plate (61) and the second end plate (63) are connected in sequence to form the internal space of the guide frame (6); The piston rod (41) slides through the first end plate (62) and connects with the plunger (1) located in the internal space. The guide sleeve (8) is disposed on the second end plate (63), and the second end plate (63) has an opening. The opening communicates with the inner ring of the guide sleeve (8), so that the plunger (1) slides through the inner ring and the opening in sequence. Each of the side plates is provided with an upper plate (611) and a lower plate (612). The guide rail (7) is fixed on the surface of the lower plate (612) and is arranged along the length direction of the lower plate (612). A first guide channel for the guide wheel to move is formed between the guide rail (7) and the upper plate (611); and the length direction of the lower plate (612) is consistent with the movement direction of the piston rod (41).

7. The guide mechanism for a solid pump according to claim 6, characterized in that, The guide rail (7) is fixed to the surface of the lower plate (612) by fasteners (10).

8. The guide mechanism for a solid pump according to any one of claims 1 or 2, characterized in that, Also includes: Guide frame (6); The guide component is a composite roller bearing (12). The guide frame (6) includes: two side plates (61) arranged opposite to each other and a first end plate (62) and a second end plate (63) arranged opposite to each other. One side plate (61), the first end plate (62), the other side plate (61) and the second end plate (63) are connected in sequence to form the internal space of the guide frame (6); The piston rod (41) slides through the first end plate (62) and connects with the plunger (1) located in the internal space. The guide sleeve (8) is disposed on the second end plate (63), and the second end plate (63) has an opening. The opening communicates with the inner ring of the guide sleeve (8), so that the plunger (1) slides through the inner ring and the opening in sequence. Each of the side plates (61) is provided with an upper plate (611) and a lower plate (612). The two sides of the guide rail (7) are fixed to the upper plate (611) and the lower plate (612) respectively, so that the three form a second guide channel for the composite roller bearing (12) to move; and the length direction of the lower plate (612) is consistent with the movement direction of the piston rod (41); The main roller of the composite roller bearing (12) is located between the upper plate (611) and the lower plate (612), and the side rollers of the composite roller bearing (12) are used to roll along the length direction of the guide rail (7).

9. The guide mechanism for a solid pump according to claim 8, characterized in that, The two sides of the guide rail (7) are fixed to the upper plate (611) and the lower plate (612) respectively by fixing plates (11).

10. The guide mechanism for a solid pump according to claim 2, characterized in that, The guide ring (2) is a guide flange.

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