A split type thermal stress release sliding base and its use method

Abstract

The present invention relates to the technical field of diaphragm pumps and discloses a split-type thermal stress relief sliding base and its use method. The split-type thermal stress relief sliding base is a load-bearing component that can slide axially under axial force. It is mainly composed of a hydraulic end upper base, a hydraulic end lower base, a connecting frame, a sliding bolt, a power end upper base, a power end lower base, a support block, a support slider, a longitudinal adjustment structure, a matching block, a wear-reducing block, and other structures. It can not only meet the load-bearing requirements of high-temperature working conditions, but also absorb thermal deformation and release thermal stress.

Description

Technical Field

[0001] The present invention relates to the technical field of diaphragm pumps, and in particular to a split-type thermal stress release sliding base and a use method thereof. Background Art

[0002] In conventional diaphragm pump applications, the base is used to support the power end components and connect and secure them to the foundation. Conventional bases are integral welded structures that are not subject to stress other than gravity.

[0003] When the diaphragm pump is used in high temperature working conditions ≥200℃, the hydraulic end of the diaphragm pump transports high temperature slurry.

[0004] Structurally, the base supports components such as the power end, diaphragm chamber, and hydraulic pipes. It not only provides support but also handles axial thermal deformation, thermal stress relief, and connection and fixation of the insulation system. Under these various technical operating conditions, conventional bases are no longer able to meet these requirements.

[0005] Therefore, it is necessary to develop a new type of diaphragm pump base that can meet the load-bearing requirements of high-temperature working conditions and absorb thermal deformation and release thermal stress. Summary of the Invention

[0006] The present invention aims to provide a split thermal stress release sliding base to solve the problem that the existing diaphragm pump base cannot withstand the axial thermal deformation and thermal stress release of the insulation system under high temperature conditions.

[0007] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a split thermal stress release sliding base, including a hydraulic end base and a power end base, both of which are divided into an upper base and a lower base, and the upper and lower bases of the hydraulic end base and the power end base are connected by vertically penetrated sliding bolts, and the sliding bolts serve as stress compensation parts, and are used for supporting blocks on the lower bases of the hydraulic end base and the power end base, and supporting sliders on the upper bases of the hydraulic end base and the power end base, and the supporting sliders can slide back and forth relative to the support blocks.

[0008] Preferably, as an improvement, a sliding groove is provided on the upper end of the support block along the front-to-back direction, and the support sliding block is inserted into the sliding groove on the support block.

[0009] Preferably, as an improvement, the sliding bolt includes a bolt, on which a fastening ring, a sleeve and a nut are provided in sequence from the head to the tail, and in the sleeve, a locking ring, an elastic member and a support sleeve are provided in sequence from the head to the tail of the bolt. When displacement occurs between the upper base and the lower base of each of the hydraulic end base and the power end base, the elastic member provides corresponding supporting force, which is a connection structure that stabilizes the upper and lower bases.

[0010] Preferably, as an improvement, the elastic member is a plurality of disc springs sleeved on the bolt, the support sleeve and the locking ring limit the disc springs, a limiting step is provided in the sleeve to limit the movement of the support sleeve toward the tail of the bolt, the locking ring is in abutment with the fastening ring, and the fastening ring is in abutment with the head of the bolt.

[0011] Preferably, as an improvement, the end face of the fastening ring abutting the locking ring is an arc transition surface, and the end face of the locking ring abutting the fastening ring is a V-shaped groove surface. After the fastening ring and the locking ring are abutted, the displacement between the upper base and the lower base of the hydraulic end base and the power end base can be adjusted at the abutting surface.

[0012] Preferably, as an improvement, the nut is a double nut to prevent loosening. When the upper and lower bases are displaced, the entire sliding bolt can run with displacement changes. By adjusting the displacement of the fitting surfaces of the locking ring and the fastening ring, the sliding bolt can remain in a tightened state to meet the working conditions.

[0013] Preferably, as an improvement, the sleeve and the locking ring are provided with pins to connect and position the upper and lower bases of the hydraulic end base and the power end base.

[0014] Preferably, as an improvement, a pin groove is provided on the inner side of the sleeve, which can play a positioning role when the bolt is tightened and stabilize the disc spring assembly during the adjustment process.

[0015] Preferably, as an improvement, the side wall of the sleeve above the support sleeve is provided with an opening for injecting lubricating oil into the disc spring, and lubricating oil can be injected into the disc spring through the opening to prevent the disc spring from rusting.

[0016] Preferably, as an improvement, a dustproof part is provided in the sleeve above the support sleeve, and the dustproof part can adopt a telescopic joint to prevent dust and debris from entering the disc spring and affecting its use.

[0017] Preferably, as an improvement, wear-reducing blocks are fixed on the lower bases of both the hydraulic end base and the power end base, and matching blocks are fixed on the upper bases of both the hydraulic end base and the power end base. A lubricating oil groove is opened on the wear-reducing block and filled with lithium-based grease. The wear-reducing block fits tightly with the matching block, and sliding bolts are passed through the wear-reducing block and the matching block.

[0018] Preferably, as an improvement, both the front and rear ends of the hydraulic end mount and the power end mount are equipped with longitudinal adjustment mechanisms. The longitudinal adjustment mechanisms include support blocks fixed to the upper bases of the hydraulic end mount and the power end mount, and adjustment blocks fixed to the lower bases of the hydraulic end mount and the power end mount, with adjustment bolts threadedly connected to the adjustment blocks, extending transversely toward the support blocks. The longitudinal adjustment mechanisms are used for fine-tuning the axial assembly of the hydraulic end mount and the power end mount.

[0019] Preferably, as an improvement, the support block and the support slider are arranged at the front and rear ends of the hydraulic end base and the power end base, lubricating oil is injected between the support block and the support slider, and a displacement indicator mark along the front and rear directions is provided on the support block.

[0020] The split thermal stress release sliding base of the present invention is a load-bearing component that can slide axially under axial force. The thermal stress and thermal deformation generated by the diaphragm pump of the present invention under high temperature conditions are transmitted to the split thermal stress release sliding base through the insulation system, and the thermal stress and thermal deformation are released through the sliding bolts, support blocks, and support sliders, thereby achieving the purpose of the present invention.

[0021] A method for using a split-type thermal stress relief sliding base comprises the following steps:

[0022] A. Prepare a split thermal stress relief sliding base as described above. Before leaving the factory, assemble the sliding bolts as a separate component. After the water test is completed, loosen the sliding bolts on the hydraulic end base and the power end base, and install a transport block and bolts between the upper and lower bases for transportation.

[0023] B. During installation, first level the lower bases of the hydraulic end base and the power end base at the installation site, and fill the lubricating oil tank of the wear reducing block with lithium-based grease;

[0024] C. Then hoist the upper base onto the lower base, fit the wear-reducing block and the matching block tightly, and connect the upper base and the lower base with sliding bolts. Insert the support slider into the support block and inject lubricating oil;

[0025] D. Then adjust the displacement indicator mark on the support block to zero in the cold state through the longitudinal adjustment mechanism;

[0026] E. After the hydraulic end base and the power end base are assembled, they are connected to each other through three connecting frames and fixed to the machine base;

[0027] F. The top of the hydraulic end base is connected to the hydraulic pipe through bolts to support the slurry conveying device of the hydraulic end. A fixed sliding suction pipe seat is installed on the upper base of the hydraulic end base and connected to the thermal balance system;

[0028] G. Install a continuous power transmission device on the upper base of the power end base.

[0029] The use method of this invention can ensure the transportation and assembly quality of the split thermal stress release sliding base. The assembled split thermal stress release sliding base is a device in the field of high-temperature working conditions that can not only meet the load-bearing requirements of the diaphragm pump group, but also meet the stress release requirements of the pump group under thermal stress. The thermal stress and thermal deformation generated by the diaphragm pump using this solution under high-temperature working conditions are transmitted to the split thermal stress release sliding base through the insulation system, and the thermal stress and thermal deformation are released through the sliding bolts, support blocks, and support sliders, thereby achieving the purpose of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural diagram of Example 1 of the present invention.

[0031] Figure 2 This is a longitudinal view of the supporting slider and the supporting block in Example 1 of the present invention.

[0032] Figure 3 This is a transverse view of the supporting slider and the supporting block in Example 1 of the present invention.

[0033] Figure 4 Schematic diagram of the structure of the longitudinal adjustment mechanism in Example 1 of the present invention.

[0034] Figure 5 It is a longitudinal sectional view of the sliding bolt in Example 1 of the present invention. DETAILED DESCRIPTION

[0035] The following is further described in detail through specific implementation methods:

[0036] The reference numerals in the drawings of the specification include: hydraulic end upper base 1, hydraulic end lower base 2, connecting frame 3, sliding bolt 4, power end upper base 5, power end lower base 6, support block 7, support slider 8, longitudinal adjustment structure 9, matching block 10, wear reducing block 11, displacement indicator mark 12, support top block 13, and adjustment block 14.

[0037] Example 1, basically as in the attached Figure 1 As shown: A split thermal stress release sliding base, including a hydraulic end upper base 1, a hydraulic end lower base 2, a connecting frame 3, a sliding bolt 4, a power end upper base 5, a power end lower base 6, a support block 7, a support slider 8, a longitudinal adjustment structure 9, a matching block 10, and a wear reducing block 11.

[0038] The power end sliding base is constructed by the power end lower base 6 and the power end upper base 5. A matching block 10 and a wear reducing block 11 are provided between the power end lower base 6 and the power end upper base 5. A lubricating oil tank is provided on the wear reducing block 11 on the power end lower base 6. Before assembly, the oil tank of the wear reducing block 11 needs to be filled with lithium-based grease. When assembling the power sliding base, first install and level the power end lower base 6, and then hoist the power end upper base 5 onto the power end lower base 6. The wear reducing block 11 and the matching block 10 should fit tightly, and the friction stress is reduced by the lubricating oil in the oil tank at the fitting point, and the wear reducing block 11 and the matching block 10 are connected by the sliding bolt 4. After the power end sliding base is leveled, combine Figure 2 、 Figure 3 As shown, support blocks 7 are bolted onto the front and rear ends of the power end lower base 6. Support slide blocks 8 are bolted onto the front and rear ends of the power end upper base 5 and lubricated. Slide grooves are defined at the upper end of the support block 7 along the front-to-back direction, into which the support slide blocks 8 are inserted. Displacement indicators 12 are provided on the support block 7 and support slide blocks 8 according to the adjustment requirements. After the power end sliding base is installed, it is cold zeroed. Longitudinal adjustment mechanisms 9 are provided at the front and rear ends for fine-tuning the axial assembly of the power end sliding base.

[0039] The hydraulic end sliding base is constructed by the hydraulic end lower base 2 and the hydraulic end upper base 1. A matching block 10 and a wear-reducing block 11 are provided between the hydraulic end lower base 2 and the hydraulic end upper base 1. A lubricating oil tank is provided on the wear-reducing block 11 on the hydraulic end lower base 2. Before assembly, the oil tank of the wear-reducing block 11 needs to be filled with lithium-based grease. When assembling the hydraulic sliding base, first install and level the hydraulic end lower base 2, and then hoist the hydraulic end upper base 1 onto the hydraulic end lower base 2. The wear-reducing block 11 and the matching block 10 should fit tightly, and the friction stress at the fitting point is reduced by the lubricating oil in the oil tank, and the wear-reducing block 11 and the matching block 10 are connected by the sliding bolt 4. After the hydraulic end sliding base is leveled, combine Figure 2 、 Figure 3 As shown, support blocks 7 are installed at the front and rear ends of the hydraulic end lower base 2, and support sliders 8 are installed at the front and rear ends of the hydraulic end upper base 1 and lubricated. Slide grooves are defined at the upper ends of the support blocks 7 along the front-to-back direction, into which the support sliders 8 are inserted. Displacement indicators 12 are provided on the support blocks 7 and support sliders 8 according to the adjustment requirements. After the hydraulic end sliding base is installed, longitudinal adjustment mechanisms 9 are installed at the front and rear ends for fine-tuning the axial assembly of the hydraulic end sliding base.

[0040] like Figure 4As shown, the longitudinal adjustment mechanism includes a support top block 13 fixed to the upper base 1 of the hydraulic end and the upper base 5 of the power end, and an adjustment block 14 fixed to the lower base 2 of the hydraulic end and the lower base 6 of the power end. The adjustment block 14 is L-shaped, and an adjustment bolt is threaded on the adjustment block 14 in the transverse direction toward the support top block 13. The longitudinal adjustment mechanism 9 is used for axial assembly fine-tuning of the hydraulic end sliding base and the power end sliding base. The support block 7 and the support slider 8 stabilize the stress release direction, and the axial position between the upper base and the lower base can be adjusted through the longitudinal adjustment structure 9. The support block 7, the support slider 8, and the longitudinal adjustment structure 9 are used to release thermal stress in the longitudinal direction of the base under high-temperature conditions of the diaphragm pump.

[0041] After the hydraulic end sliding base and the power end sliding base are assembled, they are connected to each other via three connecting brackets 3 and secured to the machine base. Sliding bolts 4 can be installed separately as a component before assembling the sliding base. After the water test, the sliding bolts 4 on the sliding base need to be loosened. Transport blocks and bolts are installed between the upper and lower bases for transport purposes to prevent breakage of the sliding bolts 4 during transportation.

[0042] The sliding bolt 4 serves as a stress compensation device. Figure 5 As shown, the sliding bolt 4 is composed of a bolt 4.1, an expansion joint 4.2, a support sleeve 4.3, a locking ring 4.4, a fastening ring 4.5, a bolt sleeve 4.7, a disc spring 4.6, a pin 4.7, and a nut 4.8. The sliding bolt 4 adopts a double-nut anti-loosening structure. When the displacement between the upper and lower bases changes, the disc spring 4.6 in the sliding bolt 4 provides the corresponding support force, which is a connection structure that stabilizes the upper and lower bases. Pins are provided on the locking ring 4.4 and the bolt sleeve 4.7 to connect and position the upper and lower bases. The end face of the fastening ring 4.5 is an arc transition surface, and the contact surface of the groove of the locking ring 4.4 is a V-shaped groove surface. After the fastening ring 4.5 and the locking ring 4.4 are fitted together, when the sliding base is displaced, the entire sliding bolt 4 can run with displacement changes. Through the displacement adjustment of the fitting surface, it remains in a tightened state, meeting the working conditions.

[0043] Bolt sleeve 4.7 and locking ring 4.4 are equipped with pins to connect and position the upper and lower bases. A pin slot on one side of bolt sleeve 4.7 serves as a positioning mechanism when tightening the bolts and stabilizes the disc spring assembly during adjustment. Openings are provided on both sides of bolt sleeve 4.7 to allow lubrication of disc spring 4.6 to prevent rust. An expansion joint 4.2 is mounted on support sleeve 4.3 to prevent dust and debris from entering disc spring 4.6 and affecting its operation.

[0044] Example 2, a method for using a split type thermal stress relief sliding base, comprising the following steps:

[0045] A. Prepare a split-type thermal stress relief sliding base as described in Example 1. Before shipment, assemble the sliding bolts 4 separately as a component. After the water test is completed, loosen the sliding bolts 4 on the hydraulic end sliding base and the power end sliding base. Install a transport block and bolts between the upper and lower bases for transportation.

[0046] B. During installation, first level the hydraulic end lower base 2 and the power end lower base 6 at the installation site, and fill the lubricating oil tank of the wear reducing block 11 with lithium-based grease;

[0047] C. Then, hoist the hydraulic end upper base 1 onto the hydraulic end lower base 2. The friction reducing block 11 fits tightly with the matching block 10. The hydraulic end upper base 1 and the hydraulic end lower base 2 are connected by sliding bolts 4. The support slider 8 is inserted into the support block 7 and lubricating oil is injected.

[0048] D. Then adjust the displacement indicator mark 12 on the support block 7 to zero through the longitudinal adjustment mechanism 9 in the cold state;

[0049] E. Then, hoist the power end upper base 5 onto the power end lower base 6. The wear reducing block 11 fits tightly with the matching block 10. The power end upper base 5 and the power end lower base 6 are connected by the sliding bolt 4. The support slider 8 is inserted into the support block 7 and lubricated.

[0050] F. Then, adjust the displacement indicator mark 12 on the support block 7 to zero through the longitudinal adjustment mechanism 9 in the cold state. The installation of the split thermal stress relief sliding base is completed.

[0051] E. After the hydraulic end sliding base and the power end sliding base are assembled, they are connected to each other through three connecting frames and fixed to the machine base;

[0052] F. The top of the hydraulic end sliding base is connected to the hydraulic pipe through bolts to support the slurry conveying device of the hydraulic end. A fixed sliding straw seat is installed on the hydraulic end upper base 1 and connected to the thermal balance system;

[0053] G. Install a continuous power transmission device on the base 5 at the power end.

[0054] The use method of this invention can ensure the transportation and assembly quality of the split thermal stress release sliding base. The assembled split thermal stress release sliding base is a device in the field of high-temperature working conditions that can not only meet the load-bearing requirements of the diaphragm pump group, but also meet the stress release requirements of the pump group under thermal stress. The thermal stress and thermal deformation generated by the diaphragm pump using this solution under high-temperature working conditions are transmitted to the split thermal stress release sliding base through the insulation system, and the thermal stress and thermal deformation are released through the sliding bolts, support blocks, and support sliders, thereby achieving the purpose of the invention.

[0055] The above is only an embodiment of the present invention, and the common knowledge such as the specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. A split type thermal stress relief sliding base, characterized by: It includes a hydraulic end base and a power end base, both of which are divided into an upper base and a lower base. The upper and lower bases of the hydraulic end base and the power end base are connected by vertically penetrated sliding bolts. The sliding bolts serve as stress compensation parts. The lower bases of the hydraulic end base and the power end base are provided with support blocks, and the upper bases of the hydraulic end base and the power end base are provided with support sliders. The support sliders can slide back and forth relative to the support blocks. The sliding bolt includes a bolt, on which a fastening ring, a sleeve and a nut are sequentially arranged from the head to the tail. A locking ring, an elastic member and a support sleeve are sequentially arranged in the sleeve from the head to the tail of the bolt. When displacement occurs between the upper base and the lower base of the hydraulic end base and the power end base, the elastic member provides corresponding supporting force. The elastic parts are a number of disc springs sleeved on the bolt. The support sleeve and the locking ring limit the disc springs. A limiting step is provided in the sleeve to limit the movement of the support sleeve toward the tail of the bolt. The locking ring is in contact with the fastening ring, and the fastening ring is in contact with the bolt head.

2. The split type thermal stress relief sliding base according to claim 1, characterized in that: The end face of the fastening ring abutting the locking ring is an arc transition surface, and the end face of the locking ring abutting the fastening ring is a V-shaped groove surface. After the fastening ring and the locking ring abut against each other, the displacement between the upper base and the lower base of the hydraulic end base and the power end base can be adjusted at the abutment surface.

3. The split type thermal stress relief sliding base according to claim 2, characterized in that: The nut is a double nut for preventing loosening. The sleeve and the locking ring are both provided with pins for connecting and positioning with the upper and lower bases of the hydraulic end base and the power end base. A pin groove is provided on the inner side of the sleeve for connecting the pin to stabilize the disc spring.

4. The split type thermal stress relief sliding base according to claim 3, characterized in that: The side wall of the sleeve above the support sleeve is provided with an opening for injecting lubricating oil into the disc spring, and the sleeve above the support sleeve is provided with a dustproof part for preventing dust and debris from entering the disc spring.

5. The split type thermal stress relief sliding base according to claim 4, characterized in that: Wear-reducing blocks are fixed on the lower bases of both the hydraulic end base and the power end base, and matching blocks are fixed on the upper bases of both the hydraulic end base and the power end base. Lubricating oil grooves are opened on the wear-reducing blocks and filled with grease. The wear-reducing blocks fit tightly with the matching blocks, and sliding bolts are passed through the wear-reducing blocks and the matching blocks.

6. The split type thermal stress relief sliding base according to claim 5, characterized in that: The front and rear ends of both the hydraulic end base and the power end base are provided with a longitudinal adjustment mechanism, which includes a supporting top block fixed on the upper base of both the hydraulic end base and the power end base, and an adjustment block fixed on the lower base of both the hydraulic end base and the power end base, and an adjustment bolt threadedly connected to the adjustment block along the transverse direction toward the supporting top block.

7. The split type thermal stress relief sliding base according to claim 6, characterized in that: The support block and support slider are arranged at the front and rear ends of the hydraulic end base and the power end base, lubricating oil is injected between the support block and the support slider, and a displacement indicator mark along the front and rear directions is provided on the support block.

8. A method for using a split type thermal stress relief sliding base, characterized in that: The following steps are involved: A. Prepare a split thermal stress relief sliding base as described in any one of claims 1 to 7, assemble the sliding bolts as a separate component before leaving the factory, loosen the sliding bolts on the hydraulic end base and the power end base after the water test, and install a transport block and bolts between the upper and lower bases for transportation; B. During installation, first level the lower bases of the hydraulic end base and the power end base at the installation site, and fill the lubricating oil tank of the wear reducing block with lithium-based grease; C. Then hoist the upper base onto the lower base, fit the wear-reducing block and the matching block tightly, and connect the upper base and the lower base with sliding bolts. Insert the support slider into the support block and inject lubricating oil; D. Then adjust the displacement indicator mark on the support block to zero in the cold state through the longitudinal adjustment mechanism; E. After the hydraulic end base and the power end base are assembled, they are connected to each other through three connecting frames and fixed to the machine base; F. The top of the hydraulic end base is connected to the hydraulic pipe through bolts to support the slurry conveying device of the hydraulic end. A fixed sliding suction pipe seat is installed on the upper base of the hydraulic end base and connected to the thermal balance system; G. Install a continuous power transmission device on the upper base of the power end base.

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