Beam type energy-saving oil pumping machine

[0020] Example 1

[0021] As shown in Figures 1-6, the beam-type energy-saving pumping unit includes a central support 1, a beam 2 arranged on the top of the central support 1, a pump rod 3, and one end driven and rotated by a motor and a reducer. The crank 5 of the balance weight 4, the end of the beam 2 is fixed with the donkey head 7 connected to the oil pump rod 3 through the steel cable 6, and the other end is connected with the crank 5 through the connecting rod 8, and the energy storage and utilization is arranged under the upstream beam 2 of the central support 1 device, the energy storage and utilization device includes a support body fixed on the central support 1, a support rod 10 supported by the support body and capable of reciprocating relative to the support body in a fixed direction, and an adjustment pressure sleeve is fixed on the support rod 10 11. A spring 12 is set between the adjusting pressure sleeve 11 on the support rod 10 and the supporting fixed body. The supporting fixed body is a fixed sleeve 9; the opposite end (i.e. the top of the supporting rod 10) of the supporting rod 10 and the traveling beam 2 is fixed with a roller 13, so that the energy storage release device of the pumping unit and the traveling beam 2 are purely rolling contact, avoiding energy loss.

[0022] During specific implementation, the energy storage utilization device is fixed on both sides of the central support 1, that is, the crank side of the central support and the donkey head side of the central support; Hole 17: In order to facilitate the installation and adjustment of the angle and distance of the energy storage and utilization device, the energy storage and utilization device is fixed on the central support 1 through the mounting bracket 16.

[0023] In order to fully illustrate the working process of the energy storage and utilization device of the present invention, as shown in Fig. 3 to Fig. 6, taking the oil pumping cycle process of a pumping unit as an example, each work of the energy storage and utilization device in the oil pumping cycle is analyzed State: In Figure 3, when the crank rotates clockwise from 0° (vertical position) to about 90°, the oil well pump rod is in the rising middle position, the beam is in a horizontal state, and the energy storage and utilization device does not work; in Figure 4, the crank The hour hand rotates to about 180 degrees, the donkey head is lifted to the top dead center, and the oil well pump rod is at the limit of rise. At this time, the spring in the energy storage and utilization device on the crank side of the central bracket deforms, and the deformation amount is the largest, and the beam will rise to The kinetic energy of the beam, donkey head, beam, connecting rod, oil pump rod, and oil self-weight before stopping is converted into elastic potential energy and stored in the spring, and when the beam returns (that is, it starts to fall), the elastic potential energy of the spring is converted Kinetic energy (that is, the stored energy is about to be fully released) is used to overcome inertia; in Figure 5, when the crank rotates clockwise to about 270 degrees, the oil well pump rod is in the middle position of descending, the beam is in a horizontal state, and the energy storage and utilization device does not work ; In Fig. 6, the crank rotates clockwise to about 360 degrees, the oil well pump rod is at the lower limit position, the donkey head falls to the bottom dead center, and the energy storage and utilization device on the donkey head side of the central support lowers the beam to the beam when it stops , donkey head, beam, connecting rod, sucker rod, oil self-weight kinetic energy is stored in the spring, and when the beam starts to rise, the elastic potential energy of the spring is released, which is converted into the beam, donkey head, beam, connecting rod, and oil pump The rising kinetic energy of the rod and the self-weight of the oil, so far, a pumping work cycle process is completed.

[0024] Example 2

[0025] As shown in Figures 7 and 8, the beam-type energy-saving pumping unit includes a central support 1, a beam 2 arranged on the top of the central support 1, an oil pump rod 3, and one end driven by a motor and a reducer is fixed with a The crank 5 of the balance weight 4, the end of the beam 2 is fixed with the donkey head 7 connected to the oil pump rod 3 through the steel cable 6, and the other end is connected with the crank 5 through the connecting rod 8, and the energy storage and utilization is arranged under the upstream beam 2 of the central support 1 device, the energy storage and utilization device includes a support body fixed on the central support 1, a support rod 10 supported by the support body and capable of reciprocating relative to the support body in a fixed direction, and an adjustment pressure sleeve is fixed on the support rod 10 11. A spring 12 is set between the adjusting pressure sleeve 11 on the support rod 10 and the supporting fixed body. Support bar 10 is hinged with the end portion (being the top end of support bar 10) that swims beam 2 opposite with swim beam 2; Described support fixed body is to have the holder 21 that is used for the through hole 20 that strut bar 10 passes; In order to fix Good spring 12, when guaranteeing that spring 12 compresses, oblique compression does not take place (even if spring 12 everywhere deformation is consistent), spring 12 two ends are fixed with spring seat 15 and contact block 14 that are sleeved on the support bar 10. Same as Embodiment 1, the energy storage and utilization device is fixed on both sides of the central support 1, namely the central support crank side and the central support donkey head side.

[0026] Example 3

[0027]As shown in Figures 9 and 10, the beam-type energy-saving pumping unit includes a central support 1, a beam 2 arranged on the top of the central support 1, a pump rod 3, and a balance fixed at one end driven by a motor and a reducer. The crank 5 of the block 4, the donkey head 7 connected to the oil pump rod 3 through the steel cable 6 is fixed at one end of the beam 2, and the other end is connected with the crank 5 through the connecting rod 8, and an energy storage and utilization device is arranged under the upstream beam 2 of the central support 1 The energy storage and utilization device includes a support body fixed on the central support 1, a support rod 10 supported by the support body and capable of reciprocating relative to the support body in a fixed direction, and an adjustment pressure sleeve 11 is fixed on the support rod 10 , A spring 12 is sleeved between the adjusting pressure sleeve 11 on the support rod 10 and the supporting fixed body. The supporting fixed body is a fixed seat 21 provided with a through hole 20 for the support rod 10 to pass through; Both ends of the semi-arc-shaped support rod 10 are respectively fixed with adjusting pressure sleeves 11, and a spring 12 is sleeved on the semi-arc-shaped support rod 10 between the adjustment pressure sleeve 11 and the fixing seat 21. The two sides of the fixed seat 21 on the semicircular-arc support rod 10 are also covered with contact blocks 14, the spring 12 is located between the contact block 14 and the fixed seat 21, and the opposite surfaces of the contact block 14 and the fixed seat 21 are inclined surfaces parallel to each other. Like this, can guarantee that the spring 12 that is sleeved on the semicircular-arc-shaped support rod 10 is in a natural state in the initial state, without local compression, or with compression, but the deformation amount is consistent; in the compressed state, the deformation of the spring 12 is consistent everywhere . The fixed seat 21 is composed of a left fixed seat 18 and a right fixed seat 19 which are separated.